formatting link
Larger images:
formatting link
Rob
- posted
8 years ago
I need some help with 2980, 2981, and 2982 this week:
Larger images:
Rob
Larger images:
Rob
What is it? Set 511
Loading thread data ...
- posted
8 years ago
Rob H. fired this volley in news:l1eb4g01bp3
@drn.newsguy.com:
2977 - paper hanging clip, for hanging orders, etc. from the wall... most likely for an agricultural repair shop, since they would be the biggest users of small motors
2978 - anti-kickback device for a radial arm saw.
2979 - looks like a "beater comb"or "teaser comb" for flax or horsehair
80-81 no clues
2982 - I do believe that is a forestry service fire-spotter's scope, for use up on fire spotting towers. Two towers triangulate to find the fire on a map.
Lloyd
2977 - paper hanging clip, for hanging orders, etc. from the wall... most likely for an agricultural repair shop, since they would be the biggest users of small motors
2978 - anti-kickback device for a radial arm saw.
2979 - looks like a "beater comb"or "teaser comb" for flax or horsehair
80-81 no clues
2982 - I do believe that is a forestry service fire-spotter's scope, for use up on fire spotting towers. Two towers triangulate to find the fire on a map.
Lloyd
- posted
8 years ago
2981 - Lure-recovery gadget for recovering fishing lures caught in
weeds and branches.
- posted
8 years ago
Posting from my desk top PC in the living room, as always.
2977, belt buckle? Firemark? 2978, prosthetic hand for 3cpo? 2979, something for wool carding? 2980, handle for some thing? 2981, device for inducing nightmares in small boys. Or, maybe a way of hanging potatos in an oven? 2982, Wasn't there some thing like this in the temple of the lost ark movie, where the guy used a stick and lens to point to where is the entrance in the pyramid?
Rob, you did it again. I've really got no clue what any of these items do. Friday, well, maybe I'll find out.
. Christopher A. Young Learn about Jesus
2977, belt buckle? Firemark? 2978, prosthetic hand for 3cpo? 2979, something for wool carding? 2980, handle for some thing? 2981, device for inducing nightmares in small boys. Or, maybe a way of hanging potatos in an oven? 2982, Wasn't there some thing like this in the temple of the lost ark movie, where the guy used a stick and lens to point to where is the entrance in the pyramid?
Rob, you did it again. I've really got no clue what any of these items do. Friday, well, maybe I'll find out.
. Christopher A. Young Learn about Jesus
formatting link
. - posted
8 years ago
OK, the forest fire spotter scope thing feels right.
The spotter reports his / her tower location, and the
compass direction of the smoke. I read about this,
decades ago. The towers had a non conductive glass
safe area for the spotter to stand, in case of
lightning.
The rest of your answers sound correct, also. Good job, sir.
. Christopher A. Young Learn about Jesus
The rest of your answers sound correct, also. Good job, sir.
. Christopher A. Young Learn about Jesus
formatting link
. - posted
8 years ago
#2980 has a fast taper similar to what is used on shafts or pipes to
hammer a shallow well. The first part may be the remains of the tip.
Paul
Paul
- posted
8 years ago
Den 19-09-2013 10:03, Rob H. skrev:
2981 Hook for squid fishing?
- posted
8 years ago
(snip)
That's what I thought at first, but the optics do not appear to be a
telescope. Also the compass rose is not divided finely enough for really
accurate sighting.
I think this might be a cat's eye retro reflecting target for a surveyor. It could be located on top of a mountain where an assistant points it in the direction of the surveyor below. A cat's eye retroreflector has a mirror or partial mirror located at the focal position of the front lens. Surveyors now use corner cube retroreflectors, mainly to provide a target for lasers. Back when this was made, they did not have laser surveying instruments, but a light collimated by the surveyor's telescope would make this target light up and give him a precise aiming point.
The reticle on the back could be used by the assistant for aiming the device if the back surface is partially reflective.
It would be helpful to confirm the purpose of this if there were a photo looking straight into the front, as well as one focused on the reticle in back while the instrument is pointed at a scene in the distance.
I think this might be a cat's eye retro reflecting target for a surveyor. It could be located on top of a mountain where an assistant points it in the direction of the surveyor below. A cat's eye retroreflector has a mirror or partial mirror located at the focal position of the front lens. Surveyors now use corner cube retroreflectors, mainly to provide a target for lasers. Back when this was made, they did not have laser surveying instruments, but a light collimated by the surveyor's telescope would make this target light up and give him a precise aiming point.
The reticle on the back could be used by the assistant for aiming the device if the back surface is partially reflective.
It would be helpful to confirm the purpose of this if there were a photo looking straight into the front, as well as one focused on the reticle in back while the instrument is pointed at a scene in the distance.
- posted
8 years ago
"anorton" fired this volley in
news:S_udnc0i3vxurqbPnZ2dnUVZ snipped-for-privacy@earthlink.com:
I agree that it's not a telescope, but the ones I actually got to use on a real fire tower had no optics, at all... just a peep and a vertical wire sight. Their azimuth divisions were just as coarse.
The mounting holes suggest a (semi)permanent mounting, as opposed to truly portable (which most surveyor's implements are).
LLoyd
I agree that it's not a telescope, but the ones I actually got to use on a real fire tower had no optics, at all... just a peep and a vertical wire sight. Their azimuth divisions were just as coarse.
The mounting holes suggest a (semi)permanent mounting, as opposed to truly portable (which most surveyor's implements are).
LLoyd
- posted
8 years ago
I agree it was meant to be semi-permanently mounted, which might makes sense
if you are making many measurements in a large area relative to a tall
landmark. Perhaps it was used to measure shift of a fault over time.
I have seen pictures of the forest tower sights. While the sights have no optics, they are far apart and the angle scale is more finely divided. This instrument is very short so it would not make a very accurate sight.
I have seen pictures of the forest tower sights. While the sights have no optics, they are far apart and the angle scale is more finely divided. This instrument is very short so it would not make a very accurate sight.
- posted
8 years ago
Correct
Yes
Nope
Sounds possible, though I haven't been able to verify any of the guesses yet for this device.
Yes
Nope
Sounds possible, though I haven't been able to verify any of the guesses yet for this device.
- posted
8 years ago
Unfortunately I took the photos a while ago and didn't shoot any through the
eyepiece so I can't help there, but thanks for the information.
- posted
8 years ago
When I first saw this device I did some searching on lure retrievers but didn't
find anything, none of them had wires like this one.
- posted
8 years ago
Thanks for guessing anyway!
- posted
8 years ago
I'll do some searching to see what I can find on that. Thanks
- posted
8 years ago
Someone else suggested this to me, I couldn't find any similar ones but I think
this idea has merit.
- posted
8 years ago
I agree that it looks fishing related, it was found in Tennessee but I guess
that
doesn't rule out that it's for salt water use.
- posted
8 years ago
Back in my boy scout days (c. early 60's), we came across a fire tower
and were invited up by the ranger for a tour. I remember him showing us
the sighting device... and it was nothing like 2982
Did a little Googling and came up with this:
I'm 100% sure that this is device employed in that tower. While I suppose it's possible 2982 could be used for the purpose... I suspect not.
Erik
Did a little Googling and came up with this:
formatting link
I'm 100% sure that this is device employed in that tower. While I suppose it's possible 2982 could be used for the purpose... I suspect not.
Erik
- posted
8 years ago
Turns out that this one is a surf sinker, also called a breakaway sinker, or
spider weight.
- posted
8 years ago
2980 is for cracking nuts, pecan, walnut, hickory, etc.
technomaNge
technomaNge