This week's set has just been posted:
This week's set has just been posted:
2506. PSP Mat (Pierced Steel Plank) or Marston Mat. Stone grooving hammer with replaceable bits. Karl
So, after a little thought, I have to guess this is not what I first describe.
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2504 looks like a cart for those old, ancient engine testing machines. My brother had one and it was huge, with a lot of leads, etc. I haven't seen them in this configuration, but I have seen them this big. 2506 looks a little like those modular aircraft landing strips. These were used extensively in WW II on soft ground. Just put them out and instant airfield. I wonder if these sections fit together. If they don't, then it is something else.
2504- want to say it's just a dolley for moving around a transmission, or maybe for a big truck tire and rim, but that one part that overhangs looks to be hinged. 2505- sets pitch on a manually adjustable prop
2506. PSP Mat (Pierced Steel Plank) or Marston Mat. Karl
Yup, that's what it is. I spent a year on this stuff at NKP in 1970 loading A-1 Skyraiders. phil k.
2503: Maybe for setting trammel points or dividers? or getting measure from a caliper? 2504: A service cart with a flip-down tray. I have seen them set up for a number of things. Don't know if this particular model had a specific purpose, or is a generic service cart. 2507: can and bottle tool?
2503 Tool for accurately spacing the wires of a fence. 2504 Cart for moving fencing supplies. 2505 Set on top of a fence post to determine if it's tilted. 2506 Hooked together horizontally to make a fence panel. 2507 Tool for twisting/untwisting fencing wire and staple puller. 2508 Repair patches & hammer for wood fence posts. Art
That's a good link, thanks!
Your description of it is pretty accurate, it's a Leytool Micro Divider Setter, I didn't have a chance to play around with it so I don't know how well it works.
Sounds like a good use for it, I would guess this is correct but I haven't been able to prove it. Text on it reads "Chesley Industrial Inc, Michigan".
Posting from Rec.crafts.metalworking as always.2503) A tool for setting the points of machinist's dividers or trammels to with 0.001". One point is placed in the dimple in the movable part in the arc below the center, and the other in one of the line of marked dimples (markings in 0.500" intermediate dimples in steps of 0.250". Then it is adjusted until it gets the desired reading.
The inner scale appears to be marked from 0 to .250" (25), and the outer scale is a vernier to give direct readings in steps of 0.010" and down to what appears to be 0.0025", so I'm not sure how they get the claimed 1/1000" I'm presuming that the outer scale is fixed, and the inner one moves with the dimple int he arc.
Frankly, I would love to have one of those.2504) The grating below the shelves suggests to me that it is for working on an engine up on a lift. It rolls under, and various things which are likely coated with oil are placed there, starting with the oil drain plug and likely the oil filter. (There should be some form of tray under that to catch the oil drips.) The grid allows the oil to flow through, but even small screws will not fall through.
2505) Some form of clinometer. I presume that the pointer is tapered so the bulk of its weight is below the pivot screw. A side view would have helped in this at least. The use of forward and reverse pitch suggests aircraft use.2506) Frankly -- no serious guess.
It could be used for storing a bunch of tool holders for a miling machine -- likely 50 taper given the likely size. But for that it would need to be horizontal, and the hook shaped feet suggest that it attaches to a vertical surface.2507) The bottom end could be used as a can opener. The hole in the center could be used as a sort of wrench. Not sure what the odd shape at the top end would fit.
Perhaps a military tool for a firearm?2508) With all the replaceable teeth, I would guess that it is used in chipping stone -- likely for something like rough forming of gargoyles and grotesques or something similar.
Now to post and then see what others have suggested.
It is not for drafting dividers, but for machinist's dividers. Fine screw adjust, and points whose purpose is to scribe lines in metal during layout, so a lot tougher than the drafting points.
How rounded are they? Likely made by a prick punch to give the proper shape for the accuracy.
Pitch in a screw is how far it advances for a full turn. Commonly used for metric screws, but inch screws have the inverse, the pitch divided into 1.000"
What it is saying is that the dimples are set at intervals of0.250" -- and would be understood by a machinist.
It looks to me as though it was disassembled and the steel bar with the dimples has been wire brushed under power.
And I commonly set them to steel scales (rulers) by placing one point in an engraved line and adjusting the other to another line and don't leave obvious scratches in the scales.
Actually -- with the exception of being made for machinist's dividers instead of draftsman's dividers -- pretty close. (And a draftsman would not need to set his dividers to that accuracy, as the lines produced are typically thicker than that. The lines left by the scriber points on the machinist's dividers (through a blue or red layout die) are much closer to that 0.001" accuracy.
No one has guessed this item correctly yet, pretty difficult to figure it out if you've never seen one before so I'll give a hint, it's part of a display at a store.
2506 - Marsden Matting for assembling temporary landing strips. I remember as a kid seeing these used in WWII.
506 is called Marshal Matting. It was used on soft ground all through the Pacific. I ran into it in VietNam, in the delta region, where it was used in a compound where heavy equipment was serviced. Without it the trucks would sink in the wet season.
At least in the early days of the Vietnam war the whole of Vung Tau airfield consisted of this steel matting, even the hanger aprons.
2505: Bowling ball pitch gage. Shows the angle at which a finger hole is drilled.
I was in the automotive business for years, and seeing the cart 2504 immediately reminded me of body shop equipment. I believe that the cart is incomplete. These and similar carts held different length rolls of making paper similar to a paper towel dispenser. Typically there were2~4 different width masking paper rolls on the front of the cart and the upper tray on the end of the cart typically held pin striping masking tape, and or single rolls of masking tape.
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