If 917 is a fold-down ceiling ladder, then the dimension quoted seems
strange... 16.75 inches for a little over 4 steps makes a 4 inch rise per
step. I suggest it is something else, or the number is wrong.
915 : Inclinometers. Both look like the types that can be attached
to straightedges to measure over longer distances.
917 : Fold down stairs for a childs play house? They are a bit small for
918 : Old can opener?
920 : Shot measure for loading shotshells.
915a: Looks simple enough, it measures inclination of some item; you
put the bottom against the thing whose angle you are measuring, adjest
the top so it's level (using the bubble level), and read off the
915b: Looks more expensive.
916: A mold, for what I don't know.
917: Escape ladder
918: Some sort of security wrench
919: I think they're upside-down.
920: Perhaps used for maintaining consistent spacing of some items.
There's no such thing as a free lunch, but certain accounting practices can
result in a fully-depreciated one.
O.K. Posting from rec.crafts.metalworking as usual.
915a,b) These appear to be devices for cliping on long straight edges
Perhaps wood ones in the first case, certainly metal ones in the
second case, to allow one to measure the angle of slope of
whatever the straightedge is resting on.
916) Hmm ... a weight of some sort -- and not quite right for curtain
pulls, so I'll suggest that they may be for the curtains
themselves -- perhaps for curtains used in a theater to pull in
front of the stage.
917) This looks like a folding attic stairs which disappears between
the rafters when not in use.
918) Interesting, and hard to judge the diameter of the ring. It
looks to me to be for cutting holes -- perhaps in the wax poured
over preserves -- or perhaps for cleaning the holes in
candlesticks which have become filled with spilled wax.
919) Perhaps for supporting insecticide candles? Perhaps the sulfur
ones used for decontaminating a house infected with termites?
920) A powder measure -- I think for shotgun loads. The bottom
can be adjusted to different volumes of powder by rotating it
and moving the pin in the notch to a different stop.
Now to see what others have said -- and then perhaps go to
sleep. :-) (Late getting to this again.)
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