Another set has just been posted:
Hopefully this won't show up as a double post, I first posted it an
hour ago using Outlook and it still hasn't shown up, so I'm posting it
again through Google.
Not casting aspersions about the Swedes but if they are anything like
English potatoes: "Made of quality Swedish steel" is a somewhat suspect
(The lowest grade of edible spuds in Britain are "Selected".)
789. The ball is gas filled to make it almost have zero gravity. This
makes it so light that it doesn't have enough gravity to develop
momentum. Therefore it takes a long time to start the rolling. Once
the rolling starts of course it will continue. I would wager that the
length of time it takes to roll down the ramp is not linear... that it
picks up speed as it goes along.
788 Button assembler.
786. Since Barr was a toy manufacturer I'm going to wager that that is a
device that determines the tire size for their toys. by adding or
removing rings it would control the size.
791 Maple tree corer for getting syrup. Or a soil corer for taking samples.
Well, those are my guesses.
786. Tool for measuring the depth to the piston top in an engine
cylinder at Top-Dead-Center.
788. Garlic press (also used by kids as a pseudo-midieval torture
790. It's either a tool for putting tension on metal banding, or
a tool for applying edge trim to carpet.
791. Whatever it is, don't let my dentist see it!!
789: The ball is a thin metal shell. There's a lead weight in the
bottom, as if somebody had poured the shell 20% full of molten lead.
The weight is not stuck to the shell. There is also viscous fluid such
as STP in the bottom of the shell.
As the ball starts to roll, the contact point moves ahead of the lead.
It can't roll faster than the lead can slide on the viscous fluid.
788. Looks like some sort of press. Given the decoration and
coloration, I'd guess it's for candy.
792. Jack for holding scientific (chemistry) and physics glassware or
other apparatus during demonstrations or experiments. Used to support
distillation flasks, optical components, and other beamline equipment
such as lasers.
787 Yours looks so much like mine that I had to go look in my collection to
make sure it was still there. It is a saw-tooth set. The star wheel has
notches to different depths, for the height of the tooth. The thumb-screw
from the side controls how far you bend the tooth.
790 looks like a cutter for trimming the edges of wallpaper. It slides in
a track on a wooden straightedge. The little wheel does the cutting.
I've only seen the one.
Anyway -- posting from rec.crafts.metalworking as usual.
786) Hmm ... interesting thing.
Does the center post come out that far by itself when the
stepped disk is removed? It sort of looks like it is calibrated
as a scale (the more you put on it, the deeper the rod goes and
the higher the number).
Perhaps it is a combination desk ornament and postage scale
(reads in ounces).
The stepped disk appears to screw onto the collar through which
the rod protrudes, leading to the idea that it is a decorative
cover instead of a functional part of the operation of the
787) This appears to be a device for un-bending something a precise
788) A wine press for one grape at a time?
The "screw" does not look strong enough to apply much force.
Perhaps it is for clamping a seal onto hot sealing wax?
Or perhaps it is for pressing a pocket watch case closed after
it has been opened?
789) My suggestion is that it is about half full with a highly
viscous fluid -- and the weight of the contained fluid is
greater than the weight of the ball half above the fluid, so
when placed on the inclined plane it only rolls as fast as the
fluid can flow around the inside of the ball.
790) This looks to have an old phonograph needle installed in it.
It *might* be a holder for sharpening the needle.
Or it might use the needle as a scribe of some form. I've seen
various tools (machinst's scribes) which used phonograph needles
as replaceable scribe points.
Does the part holding the needle rotate as the lever is lifted?
791) This appears to be a tool for taking samples of some substance.
I would suggest something like cheese. The big screw drives it
into the object being sampled, and the small half-hollow rod
allows withdrawing the sample from the screw.
792) A mini Lab-Jack. I've got two of the larger style, marketed by
Cenco. I've seen the smaller ones as well. They were used
where I worked both in chem labs for raising something to the
right height, and in optical labs for adjusting the height of a
lens or mirror on an optical bench.
It looks as though the top rod (in the upper photo) and the
bottom rod (in the lower photo) has been replaced with a
makeshift after the original failed from overloading.
Now to see what others have said.
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