RH

Rob H.

29/08/2013 1:02 AM

What is it? Set 508

This week's set has been posted:

http://55tools.blogspot.com/


Rob


This topic has 41 replies

wn

woodchucker

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 10:37 AM

On 9/2/2013 7:02 AM, Rob H. wrote:
>>>> The "larger image" links have gotten worse. Of three browsers,
>>>> only one brings it up full size -- for a moment, and then goes blank.
>>>
>>>
>>> I'll look into having a secondary site to also host the larger images, and will
>>> let you know when I find one so we can test it before next Thursday.
>>
>> Thanks,
>> DoN.
>
>
> I posted some larger images in an album at the link below, please let me know if
> these work on your computer:
>
> http://imgur.com/a/3PV19
>
Worked for me.

--
Jeff

wn

woodchucker

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 11:02 PM

On 8/30/2013 5:20 PM, Rob H. wrote:
>> The "larger image" links have gotten worse. Of three browsers,
>> only one brings it up full size -- for a moment, and then goes blank.
>
>
> I'll look into having a secondary site to also host the larger images, and will
> let you know when I find one so we can test it before next Thursday.
>
>
>
>
> Rob
>

Try IMGUR

http://imgur.com/

It's a very good site for hosting pics. Just the pics, and nothing but
the pics.

--
Jeff

LH

"Lew Hodgett"

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 7:16 PM


"DoN. Nichols" wrote:

> 2963) A wood model of a shape to be cast in iron or bronze.
--------------------------------------------
Known as a pattern.
----------------------------------------------
> The flat
> side is put down in a half box, "Green sand" is poured around it
> and pounded until it sets up fairly hard, then the half box
> ("flask" is the official term, I think) is turned over and a
> similar other half is prepared and joined to it -- with holes
> for guiding the molten metal into the mold. Once the metal
> cools enough, the sand is broken off and the metal then gets
> whatever other post-processing is needed to make the final part.
------------------------------------------------------------------------
The top half of the box is called the "Cope".
The bottom half of the box is called the "Drag".
An assembled cope and drag is called the "Flask".

From an earlier life when I was involved in foundry automation design.

Lew

aa

"anorton"

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 3:43 PM


"Phil Kangas" <[email protected]> wrote in message
news:[email protected]...
>
> "Rob H." <
>> wrote in message
>>
>>> The "larger image" links have gotten worse. Of three browsers,
>>>only one brings it up full size -- for a moment, and then goes blank.
>>
>>
>> I'll look into having a secondary site to also host the larger images,
>> and will
>> let you know when I find one so we can test it before next Thursday.
>> Rob
>
> FYI, all the 'larger images' links have worked fine here....on w/XP IE8
>

I think the "larger image" issue for any browser has to do with having Java
enabled. A lot of people disable it or never install it due to numerous
security flaws.

pp

phorbin

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 12:18 PM

In article <[email protected]>, [email protected] says...
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>
>
2959. 30" long

It's a hay knife.

GR

"G. Ross"

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 7:08 AM

Rob H. wrote:
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>
2960 Ring stamp for stamping the karat inside a ring. From the width
it might well be for 'sterling'.

--
 GW Ross 

 Weird enough for all practical 
 purposes. 





LE

"Lloyd E. Sponenburgh"

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 8:44 AM


>> http://55tools.blogspot.com/

2964 is definitely a model pulse jet engine.

I have a design for a model called "Lil' Torchy" that uses that same motor.

Lloyd

LE

"Lloyd E. Sponenburgh"

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 9:13 AM

Rob H. <[email protected]> fired this volley in
news:[email protected]:

>>>
>>2964 Was not used on RC (Radio Control) planes but on (U control)
better
>>known as control line planes.
>
>
> Just fixed my answer. Thanks
>
Rob, If I can find my copy of the 1950s Popular Mechanics Junior Do-it-
yourself Encyclopedia, I'll scan the plans for "Little Torchy", and send
them to you. It would be a nice adjunct to the commentary on the DynaJet
engines.

It's in a box, somewhere...

Lloyd

LE

"Lloyd E. Sponenburgh"

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 3:57 PM

Erik <[email protected]> fired this volley in news:spam-0A2859.12141802092013
@news.dslextreme.com:

> http://books.google.com/books?
id=I9kDAAAAMBAJ&printsec=frontcover#v=onepage&q&f=false

HAH! Rob, there you go! That's the same article in my encyclopedia,
complete with the takeoff carriage!

That should do a lot to 'fill in the blanks' on the DynaJet.

Lloyd

SM

Stormin Mormon

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 7:56 AM

2959, toe nail file for elephants.
2960, cold chisel made by the Artistic Brothers Tools.
2961, wall mount holder for fencing class.
2962, factor rep demo of a furnace heat exchanger.
2963, model of French building from 1500s era.
2964, chalice carried by a reform priest in the 1960s.

I hope someone knows some of these, I am
seriously, totally, clueless.

.
Christopher A. Young
Learn about Jesus
www.lds.org
.

On 8/29/2013 4:02 AM, Rob H. wrote:
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>

wn

woodchucker

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 11:51 AM

On 8/29/2013 4:38 AM, Erik wrote:
> In article <[email protected]>,
> Rob H. <[email protected]> wrote:
>
>> This week's set has been posted:
>>
>> http://55tools.blogspot.com/
>>
>>
>> Rob
>
> 2964: Is a Dyna Jet model pulse jet engine. Had several as a kid, and
> firmly believe they're why my hearing isn't 100%.
>
> Most had red anodized aluminum head (venturi) assemblies, and were
> marked under the name 'Dyna Jet Red Head'.
>
> They were so loud they (literally) gave my dad nose bleeds...
>
> Erik
>
Yep, agreed... loud and hot...

--
Jeff

SM

Stormin Mormon

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 8:14 AM

Thanks, Rob. This is one of the few things on usenet
that is really worth my time. Wish I knew what any
of the items was / were!

.
Christopher A. Young
Learn about Jesus
www.lds.org
.

On 8/29/2013 4:02 AM, Rob H. wrote:
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>

EH

Ed Huntress

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 5:17 AM

On 29 Aug 2013 01:02:25 -0700, Rob H. <[email protected]> wrote:

>This week's set has been posted:
>
>http://55tools.blogspot.com/
>
>
>Rob

2964 is a model pulse-jet.

--
Ed Huntress

AT

Alexander Thesoso

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 6:10 AM

2959 Guess... Peat cutter

2963 Toilet bowl mold core.

2964 Agree with E & E that this is a jet engine. To be very picky
about answer language... This is a real engine used for model planes.



On 8/29/2013 4:02 AM, Rob H. wrote:
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>

Rh

Ralph

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 10:12 AM

On 8/29/2013 3:02 AM, Rob H. wrote:
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>
2959 is a hay knife

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 1:15 PM


>2963 looks like it may be a casting mold pattern for foundry casts..
>possibly half of a full pattern, because of the half-round feature on the
>one side, adjacent to a flat surface.
>
>--
>WB


Correct, I've previously posted several other sand casting patterns but never
got
any answers for what the parts were specifically for.

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 1:17 PM


>2964: Is a Dyna Jet model pulse jet engine. Had several as a kid, and
>firmly believe they're why my hearing isn't 100%.
>
>Most had red anodized aluminum head (venturi) assemblies, and were
>marked under the name 'Dyna Jet Red Head'.
>
>They were so loud they (literally) gave my dad nose bleeds...
>
>Erik


Yes, I had heard that ear plugs are recommended when operating one.

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 1:28 PM


>>
>2960 Ring stamp for stamping the karat inside a ring. From the width
>it might well be for 'sterling'.
>


Correct, I took a photo of the stamp but it turned out really blurry, I can read
14K but not the text before that. The top half of this image is my original
photo,
the lower half has been mirrored to make it easier to read. Can anyone tell me
what the other text says?


http://img.photobucket.com/albums/v80/harnett65/Album18/pic2960a.jpg

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 1:32 PM

In article <[email protected]>, Ralph says...
>
>On 8/29/2013 3:02 AM, Rob H. wrote:
>> This week's set has been posted:
>>
>> http://55tools.blogspot.com/
>>
>>
>> Rob
>>
>2959 is a hay knife


Good answer, that's exactly what it is.

RH

"Robin Halligan"

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 11:21 PM

"Rob H." wrote in message news:[email protected]...


>>
>2960 Ring stamp for stamping the karat inside a ring. From the width
>it might well be for 'sterling'.
>


>Correct, I took a photo of the stamp but it turned out really blurry, I can
>read
>14K but not the text before that. The top half of this image is my original
>photo,
>the lower half has been mirrored to make it easier to read. Can anyone tell
>me
>what the other text says?

>http://img.photobucket.com/albums/v80/harnett65/Album18/pic2960a.jpg



Rob looking here
http://www.stevendifranco.com/index.php?option=com_content&view=article&id=84&Itemid=76
about 2/3 of the way down (search 18K HGE) I know that it is 14kbut this may
be the answer

This one can be confusing to someone who doesn't have any experience at
jewelry karat markings. The "HGE" , "GE", or "HG" stands for hard gold
electroplated, the 18k refers to the type of plating, not that the piece of
jewelry is actually 18k gold. In other words, a piece of jewelry that is
stamped 18k HGE is gold plated costume jewelry with little or no value

Robin

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 2:06 PM

>This one can be confusing to someone who doesn't have any experience at
>jewelry karat markings. The "HGE" , "GE", or "HG" stands for hard gold
>electroplated, the 18k refers to the type of plating, not that the piece of
>jewelry is actually 18k gold. In other words, a piece of jewelry that is
>stamped 18k HGE is gold plated costume jewelry with little or no value
>
>Robin


Thanks, I think you are correct that HG is what is on the stamp.

Five of the six were correctly identified this week, the answers have been
posted here:

http://55tools.blogspot.com/2013/08/set-508.html#answers


Rob

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 2:20 PM


> The "larger image" links have gotten worse. Of three browsers,
>only one brings it up full size -- for a moment, and then goes blank.


I'll look into having a secondary site to also host the larger images, and will
let you know when I find one so we can test it before next Thursday.




Rob

PK

"Phil Kangas"

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 5:36 PM


"Rob H." <
> wrote in message
>
>> The "larger image" links have gotten worse. Of
>> three browsers,
>>only one brings it up full size -- for a moment,
>>and then goes blank.
>
>
> I'll look into having a secondary site to also
> host the larger images, and will
> let you know when I find one so we can test it
> before next Thursday.
> Rob

FYI, all the 'larger images' links have worked
fine here....on w/XP IE8


PK

"Phil Kangas"

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 9:23 PM


"anorton" <
> wrote in message

> "Phil Kangas" <
> wrote in message
> >>
>> "Rob H." <
>>> wrote in message
>>>
>>>> The "larger image" links have gotten worse.
>>>> Of three browsers,
>>>>only one brings it up full size -- for a
>>>>moment, and then goes blank.
>>>
>>>
>>> I'll look into having a secondary site to also
>>> host the larger images, and will
>>> let you know when I find one so we can test it
>>> before next Thursday.
>>> Rob
>>
>> FYI, all the 'larger images' links have worked
>> fine here....on w/XP IE8
>>
>
> I think the "larger image" issue for any browser
> has to do with having Java enabled. A lot of
> people disable it or never install it due to
> numerous security flaws.

You may be right about that, anorton..


Rh

Ralph

in reply to Rob H. on 29/08/2013 1:02 AM

31/08/2013 6:48 PM


> posted here:
>
> http://55tools.blogspot.com/2013/08/set-508.html#answers
>
>
> Rob
>
2964 Was not used on RC (Radio Control) planes but on (U control) better
known as control line planes.

LF

Leon Fisk

in reply to Rob H. on 29/08/2013 1:02 AM

01/09/2013 3:13 PM

On Fri, 30 Aug 2013 15:43:34 -0700
"anorton" <[email protected]> wrote:

<snip>
>I think the "larger image" issue for any browser has to do with having Java
>enabled. A lot of people disable it or never install it due to numerous
>security flaws.

I don't think that's the problem. I have both Java Script and Java (two
separate things) disabled and the "larger image" loads just fine. I'm
running the last version of the original Opera Browser, 12.16 on Linux.
I suspect they are doing some weird browser sniffing. It will load okay
using an old version of Opera 11 (Don has an old version of Opera 10).
But if I try with an old version of Firefox a large image url reverts
from:

http://img.photobucket.com/albums/v80/harnett65/Album18/pic2959da.jpg

to:

http://smg.photobucket.com/albums/v80/harnett65/Album18/pic2959da.jpg.html

and a whole bunch of extra crap (an album webpage with viewer)
comes up.

Don might get Opera to work by having it "spoof" or "mask" its identity
as either Firefox or IE. Or just use wget to grab the file and display
it with another graphics app...


--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 4:02 AM


>>> The "larger image" links have gotten worse. Of three browsers,
>>>only one brings it up full size -- for a moment, and then goes blank.
>>
>>
>>I'll look into having a secondary site to also host the larger images, and will
>> let you know when I find one so we can test it before next Thursday.
>
> Thanks,
> DoN.


I posted some larger images in an album at the link below, please let me know if
these work on your computer:

http://imgur.com/a/3PV19

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 4:11 AM

>Try IMGUR
>
>http://imgur.com/
>
>It's a very good site for hosting pics. Just the pics, and nothing but
>the pics.


Thanks, I just posted some images there, hopefully that will work for him.

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 6:40 AM

In article <[email protected]>, Ralph says...
>
>
>> posted here:
>>
>> http://55tools.blogspot.com/2013/08/set-508.html#answers
>>
>>
>> Rob
>>
>2964 Was not used on RC (Radio Control) planes but on (U control) better
>known as control line planes.


Just fixed my answer. Thanks

RH

Rob H.

in reply to Rob H. on 29/08/2013 1:02 AM

08/09/2013 12:45 PM


>
> That works -- after I turned off the blocking on a couple of
>script source (using the NoScript plugin to FireFox).
>
> Sorry I am a bit late in responding -- I didn't get to the
>latest set before you had released the answers. Too much else happening
>here.
>
> Thanks,
> DoN.


Good to hear that it worked, I'll make a note to remind myself to post the
larger
ones on imgur but if I ever happen to forget don't hesitate to let me know.

js

jim <"sjedgingN0Sp"@[email protected]>

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 8:07 AM



Lew Hodgett wrote:
>
> "DoN. Nichols" wrote:
>
> > 2963) A wood model of a shape to be cast in iron or bronze.
> --------------------------------------------
> Known as a pattern.
> ----------------------------------------------
> > The flat
> > side is put down in a half box, "Green sand" is poured around it
> > and pounded until it sets up fairly hard, then the half box
> > ("flask" is the official term, I think) is turned over and a
> > similar other half is prepared and joined to it -- with holes
> > for guiding the molten metal into the mold. Once the metal
> > cools enough, the sand is broken off and the metal then gets
> > whatever other post-processing is needed to make the final part.
> ------------------------------------------------------------------------
> The top half of the box is called the "Cope".
> The bottom half of the box is called the "Drag".
> An assembled cope and drag is called the "Flask".

The "flask" is the outer containment structure for the
sand mold. Usually a rectangular box. The two halves of the
flask lock together and that keeps the two halves of the mold
aligned and keeps the mold from separating due to the hydraulic
pressure of the molten metal.

Most high production small castings are made using flaskless
molding today. The mold are made as a long string of molds.

http://www.foundrytechnology.co.uk/list/info.php?page_id=12

DN

"DoN. Nichols"

in reply to Rob H. on 29/08/2013 1:02 AM

30/08/2013 1:25 AM

On 2013-08-29, Rob H <[email protected]> wrote:
> This week's set has been posted:
>
> http://55tools.blogspot.com/

Posting from rec.crafts.metalworking as always.

2959) Looks like a cutter from a motorized harvesting machine.

At a guess -- for harvesting a cane type crop.

The "larger image" links have gotten worse. Of three browsers,
only one brings it up full size -- for a moment, and then goes blank.

2960) An old forged bit for a metal-turning lathe. This one designed
for working around a ridge and turning inside that area.

2961) Hmm ... from the angle of the photo it is not clear, but it
*looks* to me as though the crank is too close to the backboard
to allow it to be turned, so it is some kind of demonstration,
not a working tool.

The smaller one might be for winding thread on a bobbin, but
again, the clearance for a full turn seems to be missing, at
this time on the cross-bar on the read part.

2962) For separating coarse from fine parts of some grain product at
a guess.

2963) A wood model of a shape to be cast in iron or bronze. The flat
side is put down in a half box, "Green sand" is poured around it
and pounded until it sets up fairly hard, then the half box
("flask" is the official term, I think) is turned over and a
similar other half is prepared and joined to it -- with holes
for guiding the molten metal into the mold. Once the metal
cools enough, the sand is broken off and the metal then gets
whatever other post-processing is needed to make the final part.

2964) A "Dynajet Redhead" -- a pulse jet for models which is started
with a bicycle pump, and once it is running, requires hearing
protection for all in the neighborhood. :-)

Now to post and see what others have suggested.

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: <[email protected]> | (KV4PH) 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 ---

DN

"DoN. Nichols"

in reply to Rob H. on 29/08/2013 1:02 AM

01/09/2013 3:39 AM

On 2013-08-30, Rob H <[email protected]> wrote:
>
>> The "larger image" links have gotten worse. Of three browsers,
>>only one brings it up full size -- for a moment, and then goes blank.
>
>
> I'll look into having a secondary site to also host the larger images, and will
> let you know when I find one so we can test it before next Thursday.

Thanks,
DoN.

--
Remove oil spill source from e-mail
Email: <[email protected]> | (KV4PH) 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 ---

DN

"DoN. Nichols"

in reply to Rob H. on 29/08/2013 1:02 AM

01/09/2013 3:42 AM

On 2013-08-30, Phil Kangas <[email protected]> wrote:
>
> "Rob H." <
>> wrote in message
>>
>>> The "larger image" links have gotten worse. Of
>>> three browsers,
>>>only one brings it up full size -- for a moment,
>>>and then goes blank.
>>
>>
>> I'll look into having a secondary site to also
>> host the larger images, and will
>> let you know when I find one so we can test it
>> before next Thursday.
>> Rob
>
> FYI, all the 'larger images' links have worked
> fine here....on w/XP IE8

But, I'm on Sun Workstations. Available browsers are Firefox,
Opera (an older version -- they've stopped supporting Sun/Oracle), and
an older Mozilla.

IE8 just is not made to run on UltraSPARC machines, nor would I
trust it given IE's (and Windows') sad security histories.

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: <[email protected]> | (KV4PH) 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 ---

DN

"DoN. Nichols"

in reply to Rob H. on 29/08/2013 1:02 AM

01/09/2013 3:44 AM

On 2013-08-30, anorton <[email protected]> wrote:
>
> "Phil Kangas" <[email protected]> wrote in message
> news:[email protected]...
>>
>> "Rob H." <
>>> wrote in message
>>>
>>>> The "larger image" links have gotten worse. Of three browsers,
>>>>only one brings it up full size -- for a moment, and then goes blank.
>>>
>>>
>>> I'll look into having a secondary site to also host the larger images,
>>> and will
>>> let you know when I find one so we can test it before next Thursday.
>>> Rob
>>
>> FYI, all the 'larger images' links have worked fine here....on w/XP IE8
>>
>
> I think the "larger image" issue for any browser has to do with having Java
> enabled. A lot of people disable it or never install it due to numerous
> security flaws.

Certainly disabled on *my* systems -- at least for browser
access. Running of local code is a different matter, and is done on
some systems behind the firewall.

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: <[email protected]> | (KV4PH) 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 ---

DN

"DoN. Nichols"

in reply to Rob H. on 29/08/2013 1:02 AM

07/09/2013 4:22 AM

On 2013-09-02, Rob H <[email protected]> wrote:
>
>>>> The "larger image" links have gotten worse. Of three browsers,
>>>>only one brings it up full size -- for a moment, and then goes blank.
>>>
>>>
>>>I'll look into having a secondary site to also host the larger images, and will
>>> let you know when I find one so we can test it before next Thursday.
>>
>> Thanks,
>> DoN.
>
>
> I posted some larger images in an album at the link below, please let me know if
> these work on your computer:
>
> http://imgur.com/a/3PV19

That works -- after I turned off the blocking on a couple of
script source (using the NoScript plugin to FireFox).

Sorry I am a bit late in responding -- I didn't get to the
latest set before you had released the answers. Too much else happening
here.

Thanks,
DoN.

--
Remove oil spill source from e-mail
Email: <[email protected]> | (KV4PH) 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 ---

Es

Erik

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 12:14 PM

In article <[email protected]>,
"Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> wrote:

> Rob H. <[email protected]> fired this volley in
> news:[email protected]:
>
> >>>
> >>2964 Was not used on RC (Radio Control) planes but on (U control)
> better
> >>known as control line planes.
> >
> >
> > Just fixed my answer. Thanks
> >
> Rob, If I can find my copy of the 1950s Popular Mechanics Junior Do-it-
> yourself Encyclopedia, I'll scan the plans for "Little Torchy", and send
> them to you. It would be a nice adjunct to the commentary on the DynaJet
> engines.
>
> It's in a box, somewhere...
>
> Lloyd

Found the article online Lloyd, suspend your search! it's from the May
1949 issue of Popular Mechanics:

http://books.google.com/books?id=I9kDAAAAMBAJ&printsec=frontcover#v=onepa
ge&q&f=false

Article begins on page 206. (It may take a little while to load...)

Back in the day, pulse jets were flown almost exclusively control line,
and were really finicky to start & keep running.

Each and every 'pulse' is dependent on the one preceding it for a
fuel/air charge. If a tiny fuel bubble or whatever causes a single
'miss' the engine instantly stops. There is no 'inertia' I guess you
could call it.

There were more exotic fuel blends than you can imagine, some containing
ether, benzine and whole hosts of other nasty stuff. Lots of custom reed
valve retainers, flowjectors, metering jets and on and on. Few people
agreed on any aspect of them. (My experience was c. mid to late 60's)

However, if you search YouTube, there seems to be some folks now flying
them R/C with little if any of start/run issues of yore... they've made
a lot of progress, thats for sure. Some are still flying them C/L speed
as well.

I bet with 100' of altitude, one of the damn things could be plainly
heard five miles distant... upwind in a stiff breeze.

Erik

Es

Erik

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 3:00 PM

In article <[email protected]>,
"Lloyd E. Sponenburgh" <lloydspinsidemindspring.com> wrote:

> Erik <[email protected]> fired this volley in news:spam-0A2859.12141802092013
> @news.dslextreme.com:
>
> > http://books.google.com/books?
> id=I9kDAAAAMBAJ&printsec=frontcover#v=onepage&q&f=false
>
> HAH! Rob, there you go! That's the same article in my encyclopedia,
> complete with the takeoff carriage!
>
> That should do a lot to 'fill in the blanks' on the DynaJet.
>
> Lloyd

There's a lot more out there on the engines themselves... try this for
starters:

https://www.google.com/#q=dynajet+pulse+jet&revid=970802588&safe=off

Erik

Es

Erik

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 1:38 AM

In article <[email protected]>,
Rob H. <[email protected]> wrote:

> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob

2964: Is a Dyna Jet model pulse jet engine. Had several as a kid, and
firmly believe they're why my hearing isn't 100%.

Most had red anodized aluminum head (venturi) assemblies, and were
marked under the name 'Dyna Jet Red Head'.

They were so loud they (literally) gave my dad nose bleeds...

Erik

Ww

"Wild_Bill"

in reply to Rob H. on 29/08/2013 1:02 AM

29/08/2013 4:30 AM

2963 looks like it may be a casting mold pattern for foundry casts..
possibly half of a full pattern, because of the half-round feature on the
one side, adjacent to a flat surface.

--
WB
.........


"Rob H." <[email protected]> wrote in message
news:[email protected]...
> This week's set has been posted:
>
> http://55tools.blogspot.com/
>
>
> Rob
>

PH

"Paul Hovnanian P.E."

in reply to Rob H. on 29/08/2013 1:02 AM

02/09/2013 6:55 PM

Stormin Mormon wrote:

> Thanks, Rob. This is one of the few things on usenet
> that is really worth my time. Wish I knew what any
> of the items was / were!

It appears to be the only thing tool/metalworking related in r.c.m this
week. If it wasn't for this thread, I'd swear I was in rec.boats.

--
Paul Hovnanian mailto:[email protected]
------------------------------------------------------------------
I could get a new lease on life but I need the first and last month
in advance.


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