"Rob H." <[email protected]> wrote in message
news:[email protected]...
> Three of the items are unidentified this week, although I think I know the
> answer to one of them:
>
> http://55tools.blogspot.com/
>
>
> Rob
1828 looks like a hang tag for workers. When you arrived you moved the tag
from the out to the in hangers. When you left, the opposite. Easy to see
who was on time or if a mine, etc. That everyone had gotten out.
"Andy Dingley" <[email protected]> wrote in message
news:593b91b2-decc-4ea4-a6d7-fab47ce98d1f@a15g2000yqm.googlegroups.com...
> On 15 Jan, 04:04, Cydrome Leader <[email protected]> wrote:
>
>> they don't actually get hot.
>
> That's because they're water cooled in use. If you try to run one in
> air (even with water on the diaphram) the case gets hot enough to kill
> the electronics.
and without a load (the water) the piezo element can be damaged. Same for
ultrasonic cleaners - some used to have warnings not to run empty.
In article <[email protected]>,
DoN. Nichols <[email protected]> wrote:
>On 2010-01-14, Lloyd E. Sponenburgh <lloydspinsidemindspring.com> wrote:
>> "Rob H." <[email protected]> fired this volley in
>> news:[email protected]:
>>
>>> http://55tools.blogspot.com/
>>
>> 1826 Dunno, but it appears to have been made for the British National
>> Physics Laboratory (the time-standard folks). It's not concerned with
>> anything between the stops, what with that over-center spring, so it might
>> be for measuring the substended angle of a distant object. What's strange
>> is it measures to minutes (or at least tenths of a degree),
>
> I would say to minutes. The degrees are divided to half degrees
>on the main scale, and looking at the size of the divisions on the stop
>dials, I think that they read 0-30 (seconds in a half degree). It would
>help if it were rotated in the closeup so we could see the wrap-around
>point to be sure.
>
>> but doesn't
>> seem to attach to any kind of viewing device.
>
> Unless there is something on the bottom -- but given the pivot
>mounting, I think that it does not couple below the plate.
>
> However -- it looks as though it hinges up along the bottom edge
>of the main scale half circle, so perhaps a piece of paper -- or a flat
>metal workpiece -- can be put under it for scribing lines at precise
>angles.
>
>> 1829 looks like an ultrasonic fogger (or humidifier).
>
> I can believe that -- and wonder whether the black inverted U is
>a water level sensor -- perhaps a resistor with a known current through
>it, and measure the voltage across it to detect when it is no longer
>submerged in (and thus cooled by) water. This could cause it to shut
>off before the water level got too low and damaged the device.
"Would you believe", a carrying handle? I don't think it's a submersible --
a mere 30 watts just isn't enough do do anything to a large quantity of H2O.
The liquid reservoir is the 'hole' one sees in the top.
On 15 Jan, 04:04, Cydrome Leader <[email protected]> wrote:
> they don't actually get hot.
That's because they're water cooled in use. If you try to run one in
air (even with water on the diaphram) the case gets hot enough to kill
the electronics.
"Rob H." <[email protected]> fired this volley in
news:[email protected]:
> http://55tools.blogspot.com/
1826 Dunno, but it appears to have been made for the British National
Physics Laboratory (the time-standard folks). It's not concerned with
anything between the stops, what with that over-center spring, so it might
be for measuring the substended angle of a distant object. What's strange
is it measures to minutes (or at least tenths of a degree), but doesn't
seem to attach to any kind of viewing device.
1829 looks like an ultrasonic fogger (or humidifier).
Cydrome Leader <[email protected]> fired this volley in news:hiqesi
[email protected]:
> it's not hot but it's surprisingly painful, and I wonder why that is.
Ultrasonic energy will heat the tissues, even though the transducer itself
is not hot. Moving molecules are hotter when moving faster, cooler when
slower. If your finger tip's molecules are agitated into faster motion,
they get hot.
LLoyd
"Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> fired this volley
in news:[email protected]:
> Cydrome Leader <[email protected]> fired this volley in
> news:hiqesi [email protected]:
>
>> it's not hot but it's surprisingly painful, and I wonder why that is.
>
> Ultrasonic energy will heat the tissues, even though the transducer
> itself is not hot. Moving molecules are hotter when moving faster,
> cooler when slower. If your finger tip's molecules are agitated into
> faster motion, they get hot.
>
> LLoyd
>
I might add that the energy also causes gas bubbles to form inside the
pores of your skin, and the expansion of those bubbles causes something
akin to a superficial case of the bends in your skin.
LLoyd
On 14 Jan, 11:42, "Rob H." <[email protected]> wrote:
> Three of the items are unidentified this week, although I think I know the
> answer to one of them:
#1825: A cranequin, a geared rack for pulling back the prod of a
crossbow.
#1829: Ultrasonic water mister. Put it under water (powered up dry
kills them) so it's about 1/2" beneath and watch the fog roll off. Or
else install in a model boat as a "steam" effect (actually harder than
it sounds to make convincing)
On Jan 14, 6:42=A0am, "Rob H." <[email protected]> wrote:
> Three of the items are unidentified this week, although I think I know th=
e
> answer to one of them:
>
> http://55tools.blogspot.com/
>
> Rob
1827 - given the length, I would say an music conductors wand
1828 - number off of a fire truck
On Jan 14, 6:42=A0am, "Rob H." <[email protected]> wrote:
> Three of the items are unidentified this week, although I think I know th=
e
> answer to one of them:
>
> http://55tools.blogspot.com/
>
> Rob
1826- a bit of googling suggests it's a precision angle reference/
setter for apparatus on an optical bench- but as Lloyd mentioned, how
does it connect to anything?
http://www.solgroup.demon.co.uk/pages/products/index.html
Perhaps for a spectrometer or interferometer, but could obviously only
be used near those 2 angles.
Maybe even for aligning holographic film?
Dave
In article <[email protected]>, "Rob H." <[email protected]> wrote:
>Three of the items are unidentified this week, although I think I know the
>answer to one of them:
>
>http://55tools.blogspot.com/
1827 looks like part of a manicure set (for cleaning under one's nails)
"Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> wrote in message
news:[email protected]...
> "Rob H." <[email protected]> fired this volley in
> news:[email protected]:
>
>> http://55tools.blogspot.com/
> 1829 looks like an ultrasonic fogger (or humidifier).
Thanks! Looks like this is correct.
Rob
Rob H. wrote:
> Three of the items are unidentified this week, although I think I know
> the answer to one of them:
>
> http://55tools.blogspot.com/
>
>
> Rob
1827 is apparently a handle holder. The handle is the spearhead in
which some think they can see the image of the Buddha (Thailand being
the world's most devoutly Buddhist nation). Typically they were sold in
sets of two or four, each with a slightly different length.
The company produced sets of four kitchen implements, three-piece
flatware for four, or sets of one fork and one spoon. All were
gold-colored with wood handle inserts and Buddha spearheads on the end.
The sticks were apparently manufactured for tourists who didn't want
flatware but did want the fancy spearhead handles marked SIAM. The
tourist was free to imagine they were letter openers or stirrers. If he
asked, the vendor could answer with a Thai term, making these sticks all
the more valuable as souvenirs.
In rec.crafts.metalworking Rob H. <[email protected]> wrote:
>
> "Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> wrote in message
> news:[email protected]...
>> "Rob H." <[email protected]> fired this volley in
>> news:[email protected]:
>>
>>> http://55tools.blogspot.com/
>
>
>
>> 1829 looks like an ultrasonic fogger (or humidifier).
>
>
> Thanks! Looks like this is correct.
Anybody ever touch one that's running?
they really hurt, and it's a really weird type of pain.
>>>> http://55tools.blogspot.com/
>>
>>
>>
>>> 1829 looks like an ultrasonic fogger (or humidifier).
>>
>>
>> Thanks! Looks like this is correct.
>
> Anybody ever touch one that's running?
>
> they really hurt, and it's a really weird type of pain.
I've never touched a fogger that was running, but this review of one
describes how hot it can get (the descriptions starts at around 1:25 of the
video):
http://www.youtube.com/watch?v=Gk-Dh7Teg4s
"Bill McKee" <[email protected]> wrote in message
news:[email protected]...
>
> "Rob H." <[email protected]> wrote in message
> news:[email protected]...
>> Three of the items are unidentified this week, although I think I know
>> the answer to one of them:
>>
>> http://55tools.blogspot.com/
>>
>>
>> Rob
>
> 1828 looks like a hang tag for workers. When you arrived you moved the
> tag from the out to the in hangers. When you left, the opposite. Easy to
> see who was on time or if a mine, etc. That everyone had gotten out.
No correct guesses yet for this one, I removed a five letter word at the
bottom, it seemed like it would be too easy if I left it there, the slot at
the top is another clue.
Rob
In rec.crafts.metalworking Rob H. <[email protected]> wrote:
>
>>>>> http://55tools.blogspot.com/
>>>
>>>
>>>
>>>> 1829 looks like an ultrasonic fogger (or humidifier).
>>>
>>>
>>> Thanks! Looks like this is correct.
>>
>> Anybody ever touch one that's running?
>>
>> they really hurt, and it's a really weird type of pain.
>
> I've never touched a fogger that was running, but this review of one
> describes how hot it can get (the descriptions starts at around 1:25 of the
> video):
they don't actually get hot.
Rob H. wrote:
>
> "Bill McKee" <[email protected]> wrote in message
> news:[email protected]...
>>
>> "Rob H." <[email protected]> wrote in message
>> news:[email protected]...
>>> Three of the items are unidentified this week, although I think I
>>> know the answer to one of them:
>>>
>>> http://55tools.blogspot.com/
>>>
>>>
>>> Rob
>>
>> 1828 looks like a hang tag for workers. When you arrived you moved
>> the tag from the out to the in hangers. When you left, the opposite.
>> Easy to see who was on time or if a mine, etc. That everyone had
>> gotten out.
>
>
> No correct guesses yet for this one, I removed a five letter word at the
> bottom, it seemed like it would be too easy if I left it there, the slot
> at the top is another clue.
>
>
> Rob
Is the slot for coins? Before the customer pays, he can be sure he's on
the right car. Then, when the driver turns in the locked box, the
clerks know what car it's from.
Rob H. wrote:
>
>>>>> http://55tools.blogspot.com/
>>>>>
>>
>> Is the slot for coins? Before the customer pays, he can be sure he's
>> on the right car. Then, when the driver turns in the locked box, the
>> clerks know what car it's from.
>
>
> Nope, it has nothing to do with coins.
>
>
> Rob
How about a tag riveted to a locker or toolbox? The loop for the
padlock extends through the slot so that when it's locked the tag can't
be stolen without breaking it.
"E Z Peaces" <[email protected]> wrote in message
news:[email protected]...
> Rob H. wrote:
>>
>>>>>> http://55tools.blogspot.com/
>>>>>>
>>>
>>> Is the slot for coins? Before the customer pays, he can be sure he's on
>>> the right car. Then, when the driver turns in the locked box, the
>>> clerks know what car it's from.
>>
>>
>> Nope, it has nothing to do with coins.
>>
>>
>> Rob
>
> How about a tag riveted to a locker or toolbox? The loop for the padlock
> extends through the slot so that when it's locked the tag can't be stolen
> without breaking it.
You were closer with your previous guess in that it's transportation
related, though it has nothing to do with cars or boxes.
Rob
>> How about a tag riveted to a locker or toolbox? The loop for the padlock
>> extends through the slot so that when it's locked the tag can't be stolen
>> without breaking it.
>
> You were closer with your previous guess in that it's transportation
> related, though it has nothing to do with cars or boxes.
I went ahead and replaced the original photo on my site with one in which
the word at the bottom is visible, that should give a better chance for
someone to solve it:
http://img.photobucket.com/albums/v80/harnett65/Album11/pic1828ba.jpg
Rob
"Rob H." <[email protected]> wrote in message
news:[email protected]...
>
>>> How about a tag riveted to a locker or toolbox? The loop for the
>>> padlock
>>> extends through the slot so that when it's locked the tag can't be
>>> stolen without breaking it.
>>
>> You were closer with your previous guess in that it's transportation
>> related, though it has nothing to do with cars or boxes.
>
>
> I went ahead and replaced the original photo on my site with one in which
> the word at the bottom is visible, that should give a better chance for
> someone to solve it:
>
> http://img.photobucket.com/albums/v80/harnett65/Album11/pic1828ba.jpg
>
>
> Rob
It's not a hack license, is it?
Paul K. Dickman
In rec.crafts.metalworking Andy Dingley <[email protected]> wrote:
> On 15 Jan, 04:04, Cydrome Leader <[email protected]> wrote:
>
>> they don't actually get hot.
>
> That's because they're water cooled in use. If you try to run one in
> air (even with water on the diaphram) the case gets hot enough to kill
> the electronics.
just touch the brass colored part when one is running under water.
it's not hot but it's surprisingly painful, and I wonder why that is.
Rob H. wrote:
>
>>> How about a tag riveted to a locker or toolbox? The loop for the
>>> padlock
>>> extends through the slot so that when it's locked the tag can't be
>>> stolen without breaking it.
>>
>> You were closer with your previous guess in that it's transportation
>> related, though it has nothing to do with cars or boxes.
>
>
> I went ahead and replaced the original photo on my site with one in
> which the word at the bottom is visible, that should give a better
> chance for someone to solve it:
>
> http://img.photobucket.com/albums/v80/harnett65/Album11/pic1828ba.jpg
>
>
> Rob
It seems to me that even in the 1960s, horsepower was a basis for
registration fees of motor vehicles in some states. This kind of
horsepower used displacement to estimate how many horses an engine would
replace. A car of the 1960s might have four horsepower, as I recall.
I think this was a 1915 registration tag, to be mounted by screws or a
strap. The 1-horse rating suggests a motorcycle. The 5 shape would let
police see from a distance that it was issued in 1915.
>> http://img.photobucket.com/albums/v80/harnett65/Album11/pic1828ba.jpg
>>
>>
>> Rob
> It's not a hack license, is it?
At the museum where I saw it I was told that it was a license for a horse,
they didn't mention any other specifics.
Thanks to everyone who identified the fogger, the answers for most of the
rest of the set can be seen here:
http://55tools.blogspot.com/2010/01/set-319.html#answers
Rob
> 1825) It looks as though it is intended to draw through cutting
> something on both sides. Not sure what the something is, but
> there appears to be quite a bit of leverage.
>
> The force is against the bundle of what appears to be rawhide
> strips bundled together with a wrapping of more rawhide.
>
> I'm not sure why the shaft appears to be split -- other views
> might help.
>
> And -- I would like to know what the arrowhead points to, which
> would need a view from the other side.
Below is the best view of the other side that I have:
http://img.photobucket.com/albums/v80/harnett65/Album11/pic1825da.jpg
I don't think the arrow points to anything, an image search of 'cranequin'
shows that some of these devices have similar arrows but others don't:
http://images.google.com/images?hl=en&rlz=1B3GGGL_enUS228US228&um=1&q=cranequin&sa=N&start=0&ndsp=21
Maybe the arrow was used to hang the device on their belt.
Rob
In rec.crafts.metalworking Lloyd E. Sponenburgh <lloydspinsidemindspring.com> wrote:
> "Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> fired this volley
> in news:[email protected]:
>
>> Cydrome Leader <[email protected]> fired this volley in
>> news:hiqesi [email protected]:
>>
>>> it's not hot but it's surprisingly painful, and I wonder why that is.
>>
>> Ultrasonic energy will heat the tissues, even though the transducer
>> itself is not hot. Moving molecules are hotter when moving faster,
>> cooler when slower. If your finger tip's molecules are agitated into
>> faster motion, they get hot.
>>
>> LLoyd
>>
>
> I might add that the energy also causes gas bubbles to form inside the
> pores of your skin, and the expansion of those bubbles causes something
> akin to a superficial case of the bends in your skin.
That might be it. It didn't feel like a normal burn, and was pretty fast
acting, like an electric shock, but continued to hurt for a bit
afterwards.
If anybody gets bored try it out some time.
Rob H. wrote:
>> 1825) It looks as though it is intended to draw through cutting
>> something on both sides. Not sure what the something is, but
>> there appears to be quite a bit of leverage.
>>
>> The force is against the bundle of what appears to be rawhide
>> strips bundled together with a wrapping of more rawhide.
>>
>> I'm not sure why the shaft appears to be split -- other views
>> might help.
>>
>> And -- I would like to know what the arrowhead points to, which
>> would need a view from the other side.
>
> Below is the best view of the other side that I have:
>
> http://img.photobucket.com/albums/v80/harnett65/Album11/pic1825da.jpg
>
> I don't think the arrow points to anything, an image search of
> 'cranequin' shows that some of these devices have similar arrows but
> others don't:
>
> http://images.google.com/images?hl=en&rlz=1B3GGGL_enUS228US228&um=1&q=cranequin&sa=N&start=0&ndsp=21
>
>
> Maybe the arrow was used to hang the device on their belt.
>
> Rob
It would have been used to hang the crossbow the cranquin was attached
to from the bow mans gear using a rope or leather trace. Sort of an
early sling.
The rawhide part is not a universal fit item. It would have been soaked
in water, then slid over the butt of the bow until it reached the spot
just behind the grip. Then it would be allowed to dry. This held it
securely in place and provided the anchor point for the cranquin to
operate against as it drew the bowstring. Consider that the common cross
bows of the day had between 600 and 800 pounds of draw and you see the
need for a LOT of mechanical advantage to draw the bow.
--
Steve W.
Rob H. wrote:
>
>>> http://img.photobucket.com/albums/v80/harnett65/Album11/pic1828ba.jpg
>>>
>>>
>>> Rob
>> It's not a hack license, is it?
>
>
> At the museum where I saw it I was told that it was a license for a
> horse, they didn't mention any other specifics.
>
http://www.flickr.com/photos/woodysworld1778/3564774286/in/set-72157601592065118/
This one says in the early 1900s most American and Canadian
municipalities began requiring that commercial horse-drawn vehicles be
tagged with disks attached by straps to horses. By 1920, you got a slot
instead of a strap.
http://www.flickriver.com/photos/woodysworld1778/1192384916/
Here's one from Edmonton with only a slot in 1915.
http://www.flickr.com/photos/woodysworld1778/3970488137/in/set-72157601592065118/
Here's one from Chicago for an automobile in 1926. It has screw holes
instead of a slot.
http://www.chauffeurbadges.com/45.html
Near the bottom of this page are 46 municipal tags from 1897 to 1927 in
Pennsylvania. Only one, from 1927, says "Motor." It has a slot, which
suggests that trucks had once used horse tags. Twenty-seven, including
several with a slot and screw holes, say "Vehicle." Eleven say
"2-horse," 4 say "1-horse," one says "horse," one says "livery," and one
says "automobile."
Yours has a slot and screw holes. The slot suggests that Hamilton
required horse-drawn vehicles to be tagged on the bridle. The screw
holes suggest to me that it was also for light motor vehicles.
>> At the museum where I saw it I was told that it was a license for a
>> horse, they didn't mention any other specifics.
>>
>
>
> http://www.flickr.com/photos/woodysworld1778/3564774286/in/set-72157601592065118/
>
> This one says in the early 1900s most American and Canadian municipalities
> began requiring that commercial horse-drawn vehicles be tagged with disks
> attached by straps to horses. By 1920, you got a slot instead of a strap.
>
>
> http://www.flickriver.com/photos/woodysworld1778/1192384916/
>
> Here's one from Edmonton with only a slot in 1915.
>
>
>
> http://www.flickr.com/photos/woodysworld1778/3970488137/in/set-72157601592065118/
>
> Here's one from Chicago for an automobile in 1926. It has screw holes
> instead of a slot.
>
>
> http://www.chauffeurbadges.com/45.html
> Near the bottom of this page are 46 municipal tags from 1897 to 1927 in
> Pennsylvania. Only one, from 1927, says "Motor." It has a slot, which
> suggests that trucks had once used horse tags. Twenty-seven, including
> several with a slot and screw holes, say "Vehicle." Eleven say "2-horse,"
> 4 say "1-horse," one says "horse," one says "livery," and one says
> "automobile."
>
> Yours has a slot and screw holes. The slot suggests that Hamilton
> required horse-drawn vehicles to be tagged on the bridle. The screw holes
> suggest to me that it was also for light motor vehicles.
Good job on the license research, some interesting stuff there, I changed my
answer to include "most likely for a horse used with a commercial vehicle."
Thanks,
Rob
> It would have been used to hang the crossbow the cranquin was attached
> to from the bow mans gear using a rope or leather trace. Sort of an
> early sling.
> The rawhide part is not a universal fit item. It would have been soaked
> in water, then slid over the butt of the bow until it reached the spot
> just behind the grip. Then it would be allowed to dry. This held it
> securely in place and provided the anchor point for the cranquin to
> operate against as it drew the bowstring. Consider that the common cross
> bows of the day had between 600 and 800 pounds of draw and you see the
> need for a LOT of mechanical advantage to draw the bow.
>
> --
> Steve W.
Thanks, that makes sense. I was hoping to find a youtube video of someone
using a winder but didn't have any luck.
Rob
Rob H. wrote:
>
>> It would have been used to hang the crossbow the cranquin was attached
>> to from the bow mans gear using a rope or leather trace. Sort of an
>> early sling.
>> The rawhide part is not a universal fit item. It would have been soaked
>> in water, then slid over the butt of the bow until it reached the spot
>> just behind the grip. Then it would be allowed to dry. This held it
>> securely in place and provided the anchor point for the cranquin to
>> operate against as it drew the bowstring. Consider that the common cross
>> bows of the day had between 600 and 800 pounds of draw and you see the
>> need for a LOT of mechanical advantage to draw the bow.
>>
>> --
>> Steve W.
>
>
>
> Thanks, that makes sense. I was hoping to find a youtube video of
> someone using a winder but didn't have any luck.
>
>
> Rob
>
>
>
They are not hard to use. Most had a release that let the rail loose.
Then you hooked the T bar over the string. Engage the crank and wind the
string back until it drops into the dogs on the lock. Back the crank off
one turn to release the string, drop in the bolt and your ready to go.
--
Steve W.
"Northe" <[email protected]> wrote in message
news:[email protected]...
> Rob,
>
>
>> Thanks, that makes sense. I was hoping to find a youtube video of
>> someone using a winder but didn't have any luck.
>>
>>
>> Rob
>
> Take a look here: <http://www.youtube.com/watch?v=-ykrg4rQIO0>
>
> The video shows a number of devices for setting the bow string.
>
> Northe
Thanks! That's an interesting video.
Rob
1825 - Electric fence stretcher
1829 - Looks like a heater for outdoor cattle watering
trough, but not enough amps, watts, etc.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
.
"Rob H." <[email protected]> wrote in message
news:[email protected]...
Three of the items are unidentified this week, although I
think I know the
answer to one of them:
http://55tools.blogspot.com/
Rob
"DoN. Nichols" <[email protected]> wrote in message
news:[email protected]...
> On 2010-01-14, Lloyd E. Sponenburgh <lloydspinsidemindspring.com> wrote:
>> "Rob H." <[email protected]> fired this volley in
>> news:[email protected]:
>>
>>> http://55tools.blogspot.com/
>>
>> 1826 Dunno, but it appears to have been made for the British National
>> Physics Laboratory (the time-standard folks). It's not concerned with
>> anything between the stops, what with that over-center spring, so it
>> might
>> be for measuring the substended angle of a distant object. What's
>> strange
>> is it measures to minutes (or at least tenths of a degree),
>
> I would say to minutes. The degrees are divided to half degrees
> on the main scale, and looking at the size of the divisions on the stop
> dials, I think that they read 0-30 (seconds in a half degree). It would
> help if it were rotated in the closeup so we could see the wrap-around
> point to be sure.
>
It's my "entry". The rotary dials are scaled 0-30, which ties in with
minutes - the degree marks are to 0.5 degree.
>> but doesn't seem to attach to any kind of viewing device.
>
> Unless there is something on the bottom -- but given the pivot
> mounting, I think that it does not couple below the plate.
>
As far as I can see and tell there is no means for anything to mount to or
off the rotating arm. I cannot see a way it could be used as a "sight"
against something behind the gauge. It doesn't seem to have any optical /
mirror surfaces and it seems complete, nothing missing.
There does not appear to be any way the frame / base could attach to
anything either. The only clue I can see is the top and bottom rails are
unpainted - I assume to sit against a reference surface.
> However -- it looks as though it hinges up along the bottom edge
> of the main scale half circle, so perhaps a piece of paper -- or a flat
> metal workpiece -- can be put under it for scribing lines at precise
> angles.
>
No hinges its all fixed solid. The two dark coloured knobs on the front are
just that, they are knobs/handles to pick up or position the unit. There is
no obvious place where a scribe or similar could be used.
My guess is it may be a training aid of some sort - but for what?????
[......]
>
> Enjoy,
> DoN.
>
> --
> Email: <[email protected]> | Voice (all times): (703) 938-4564
> (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
> --- Black Holes are where God is dividing by zero ---
In article <[email protected]>, "Rob H." <[email protected]>
wrote:
> Three of the items are unidentified this week, although I think I know the
> answer to one of them:
>
> http://55tools.blogspot.com/
>
>
> Rob
1826 is clearly some kind of device for measuring angles to high precision.
I'm assuming the N.P.L. referenced in the lower-right is the National
Physics Laboratory (http://www.npl.co.uk). Perhaps a jig for calibrating
sextants? Or bombsights? Odd that it only goes to +/- 40 degrees.
On 2010-01-14, Rob H. <[email protected]> wrote:
> Three of the items are unidentified this week, although I think I know the
> answer to one of them:
>
> http://55tools.blogspot.com/
O.K. Posting from Rec.crafts.metalworking as always:
1825) It looks as though it is intended to draw through cutting
something on both sides. Not sure what the something is, but
there appears to be quite a bit of leverage.
The force is against the bundle of what appears to be rawhide
strips bundled together with a wrapping of more rawhide.
I'm not sure why the shaft appears to be split -- other views
might help.
And -- I would like to know what the arrowhead points to, which
would need a view from the other side.
1826) Yet another thing which could benefit from additional views.
The close-up hows that each division on the main scale is a half
a degree, and the dial subdivides that into minutes (0-30 on the
dial or a half a degree).
It looks as though it is hinged at the bottom edge of the white
semi-circle, so you could put something under it to be marked to
precise angles.
But -- it does not look as though the leadscrews on the fine
adjusts extend far enough to handle angles near zero.
If the maker were in the USA, I would suggest that the color
suggests naval use -- but is also the color of many machine
tools.
I would like to see the reverse side of this, hoping that it
might give other clues.
1827) Hmm ... a rod for tamping down powder and bullet in a muzzle
loading pistol? (Too short for a rifle). Hmm --- perhaps for a
howdah pistol -- very large caliber used for dispatching a tiger
who attacks the riders in the howdah on the elephant?
1828) I think that this is one of the symbols which showed that a
house had paid it's fee to the fire fighters in the region. The
large number probably shows which fire house, it is good for one
year, so the year present, the 391 for keeping track of which
account it is.
1829) At a guess -- this is some form of submersible heater, given
that the power supply can produce 30 Watts of output.
It appears to be oil filled -- to conduct the heat to the
outside. The raised black thing might be a thermostat to switch
it on and of to maintain the desired temperature.
1830) No real guess as to this one. Perhaps the two sockets could hold
flagstaffs?
Hmm ... pull down on the inner end of the short links and the
flag sockets can fold inwards -- perhaps to clear a low overhead
passage?
Now off to see what others have suggested.
Enjoy,
DoN.
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--- Black Holes are where God is dividing by zero ---
On 2010-01-14, Roy Smith <[email protected]> wrote:
> In article <[email protected]>, "Rob H." <[email protected]>
> wrote:
>
>> Three of the items are unidentified this week, although I think I know the
>> answer to one of them:
>>
>> http://55tools.blogspot.com/
>>
>>
>> Rob
>
> 1826 is clearly some kind of device for measuring angles to high precision.
> I'm assuming the N.P.L. referenced in the lower-right is the National
> Physics Laboratory (http://www.npl.co.uk). Perhaps a jig for calibrating
> sextants? Or bombsights? Odd that it only goes to +/- 40 degrees.
And that it cannot be set to the same degree of precision inside
perhaps +/- 25 or 30 degrees. The leadscrews are not long enough, and
they can't be relocated.
Enjoy,
DoN.
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--- Black Holes are where God is dividing by zero ---
On 2010-01-14, Lloyd E. Sponenburgh <lloydspinsidemindspring.com> wrote:
> "Rob H." <[email protected]> fired this volley in
> news:[email protected]:
>
>> http://55tools.blogspot.com/
>
> 1826 Dunno, but it appears to have been made for the British National
> Physics Laboratory (the time-standard folks). It's not concerned with
> anything between the stops, what with that over-center spring, so it might
> be for measuring the substended angle of a distant object. What's strange
> is it measures to minutes (or at least tenths of a degree),
I would say to minutes. The degrees are divided to half degrees
on the main scale, and looking at the size of the divisions on the stop
dials, I think that they read 0-30 (seconds in a half degree). It would
help if it were rotated in the closeup so we could see the wrap-around
point to be sure.
> but doesn't
> seem to attach to any kind of viewing device.
Unless there is something on the bottom -- but given the pivot
mounting, I think that it does not couple below the plate.
However -- it looks as though it hinges up along the bottom edge
of the main scale half circle, so perhaps a piece of paper -- or a flat
metal workpiece -- can be put under it for scribing lines at precise
angles.
> 1829 looks like an ultrasonic fogger (or humidifier).
I can believe that -- and wonder whether the black inverted U is
a water level sensor -- perhaps a resistor with a known current through
it, and measure the voltage across it to detect when it is no longer
submerged in (and thus cooled by) water. This could cause it to shut
off before the water level got too low and damaged the device.
Enjoy,
DoN.
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--- Black Holes are where God is dividing by zero ---
On 2010-01-15, Robert Bonomi <[email protected]> wrote:
> In article <[email protected]>,
> DoN. Nichols <[email protected]> wrote:
>>On 2010-01-14, Lloyd E. Sponenburgh <lloydspinsidemindspring.com> wrote:
>>> "Rob H." <[email protected]> fired this volley in
>>> news:[email protected]:
>>>
>>>> http://55tools.blogspot.com/
[ ... ]
>>> 1829 looks like an ultrasonic fogger (or humidifier).
>>
>> I can believe that -- and wonder whether the black inverted U is
>>a water level sensor -- perhaps a resistor with a known current through
>>it, and measure the voltage across it to detect when it is no longer
>>submerged in (and thus cooled by) water. This could cause it to shut
>>off before the water level got too low and damaged the device.
>
> "Would you believe", a carrying handle?
For something all of 1-1/2" diameter? It would barely work
between thumb and index finger.
> I don't think it's a submersible --
> a mere 30 watts just isn't enough do do anything to a large quantity of H2O.
It works only in the vicinity of the diaphragm which is down in
the hole. Typically, it would be sunk about a half inch to an inch
below the top of the water surface, and it generates a cloud of water
droplets as a fine mist above the surface of the water. I think that we
can declare the minimum working level for this as just below the
crossbar of what you call a handle, and I call a sensor.
There is something like this (though without the individual head
shown here) in the ultrasonic humidifier which I have had for many years
now. That one has a floating donut magnet around a shaft which includes
a mercury wetted reed relay cell, so when the water gets below the
proper level, it turns off to protect the ultrasonic generator. The
water, in the case of my humidifier, is supplied from a tank with a demand
system so it only gets more water when the water level falls below a
preset level.
> The liquid reservoir is the 'hole' one sees in the top.
That hole would be the mounting ring for the piezoelectric
diaphragm which produces the ultrasonic energy.
Enjoy,
DoN.
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--- Black Holes are where God is dividing by zero ---
On 2010-01-15, Royston Vasey <[email protected]> wrote:
>
> "DoN. Nichols" <[email protected]> wrote in message
> news:[email protected]...
>> On 2010-01-14, Lloyd E. Sponenburgh <lloydspinsidemindspring.com> wrote:
>>> "Rob H." <[email protected]> fired this volley in
>>> news:[email protected]:
>>>
>>>> http://55tools.blogspot.com/
>>>
>>> 1826 Dunno, but it appears to have been made for the British National
>>> Physics Laboratory (the time-standard folks). It's not concerned with
>>> anything between the stops, what with that over-center spring, so it
>>> might
>>> be for measuring the substended angle of a distant object. What's
>>> strange
>>> is it measures to minutes (or at least tenths of a degree),
>>
>> I would say to minutes. The degrees are divided to half degrees
>> on the main scale, and looking at the size of the divisions on the stop
>> dials, I think that they read 0-30 (seconds in a half degree). It would
>> help if it were rotated in the closeup so we could see the wrap-around
>> point to be sure.
>>
>
> It's my "entry". The rotary dials are scaled 0-30, which ties in with
> minutes - the degree marks are to 0.5 degree.
O.K. That works.
>>> but doesn't seem to attach to any kind of viewing device.
>>
>> Unless there is something on the bottom -- but given the pivot
>> mounting, I think that it does not couple below the plate.
>>
>
>
> As far as I can see and tell there is no means for anything to mount to or
> off the rotating arm. I cannot see a way it could be used as a "sight"
> against something behind the gauge. It doesn't seem to have any optical /
> mirror surfaces and it seems complete, nothing missing.
Is the groove just beyond the pressure plate for the adjustment
leadscrews a slit all the way to the bottom, or is it just a reference
line?
> There does not appear to be any way the frame / base could attach to
> anything either. The only clue I can see is the top and bottom rails are
> unpainted - I assume to sit against a reference surface.
It could perhaps be placed on a workpiece and adjusted so the
groove lines up with some feature to measure the precise angle at which
the feature is located.
>
>
>> However -- it looks as though it hinges up along the bottom edge
>> of the main scale half circle, so perhaps a piece of paper -- or a flat
>> metal workpiece -- can be put under it for scribing lines at precise
>> angles.
>>
>
> No hinges its all fixed solid. The two dark coloured knobs on the front are
> just that, they are knobs/handles to pick up or position the unit. There is
> no obvious place where a scribe or similar could be used.
Are the knobs large enough to allow handling it's weight?
> My guess is it may be a training aid of some sort - but for what?????
Or for verifying that something was made to the proper degree of
precision.
Perhaps you need to find someone who worked for the lab which
specified it?
Enjoy,
DoN.
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--- Black Holes are where God is dividing by zero ---
On 2010-01-15, Rob H. <[email protected]> wrote:
>
>>>>> http://55tools.blogspot.com/
>>>>>
>>
>> Is the slot for coins? Before the customer pays, he can be sure he's on
>> the right car. Then, when the driver turns in the locked box, the
>> clerks know what car it's from.
>
>
> Nope, it has nothing to do with coins.
Hmm ... it looks as though the image has now been re-posted
whole. So -- is it perhaps for horse-drawn cabs as a city license? The
slot would allow it to be hung from the horse's harness, ro the scrw
holes would allow mounting it to the frame of the cab.
Enjoy,
DoN.
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--- Black Holes are where God is dividing by zero ---
On 2010-01-15, Rob H. <[email protected]> wrote:
>> 1825) It looks as though it is intended to draw through cutting
>> something on both sides. Not sure what the something is, but
>> there appears to be quite a bit of leverage.
>>
>> The force is against the bundle of what appears to be rawhide
>> strips bundled together with a wrapping of more rawhide.
>>
>> I'm not sure why the shaft appears to be split -- other views
>> might help.
>>
>> And -- I would like to know what the arrowhead points to, which
>> would need a view from the other side.
>
> Below is the best view of the other side that I have:
>
> http://img.photobucket.com/albums/v80/harnett65/Album11/pic1825da.jpg
O.K. That seems to suggest that the "arrow" may be a spring
clip to hold the crank carriage in the upper-most position -- or a clue
that you now have the string far enough back so you can now hook it on
the catch of the crossbow.
> I don't think the arrow points to anything, an image search of 'cranequin'
> shows that some of these devices have similar arrows but others don't:
>
> http://images.google.com/images?hl=en&rlz=1B3GGGL_enUS228US228&um=1&q=cranequin&sa=N&start=0&ndsp=21
>
> Maybe the arrow was used to hang the device on their belt.
Perhaps so.
Enjoy,
DoN.
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