272 sliding window/door lock
273 lathe dog with fixed stud on face plate
274 ink, oil, or glue dispenser
276 camera iris or variable orifice
283 the open end may be for a different size of can. it would follow the inside or outside of the raised lip.
279. Tool for removing/tightening bicycle wheel nuts, and doing other maintenance on bicycles.
280. Electronic metronome for musicians (my son uses one for guitar practice).
281. ?
282. Part of an earpiece?
283. ?
I think this is probably a can opener, but I'm open to the possibility that this could be incorrect. You are the second person to suggest it could be for tire repair, please let me know if you are aware of any web sites that could verify your idea. One reason I think it's a can opener is that the blade is adjustable, it slides so that when the point is pierced into the center of the lid, the blade will be able to cut any size can. I still haven't been able to find out why the back end is shaped like it is, though it was suggested that possibly it's used to pry out the lid once you are done cutting.
Are you sure you're referring to the correct picture? 282 shows up for me as the one they looks like the strainer for a drain (and even look like it has some of the rubber cement on it).
-- Jack Novak Buffalo, NY - USA (Remove "SPAM" from email address to reply)
You're right, I was referring to 283. If you haven't already found out by reading other posts, 282 isn't used for repairing tires, it's a microscope photo of something 125 microns in diameter.
281. I have one of these so I took it to work and asked there. They used to have a boot factory here and a guy said they used the end to pry out tacks in the boots, apparently the tacks were temporary until the boots were sewn up. He said the sawblade part was to pry out tacks also.He told me more than I need to know about making boots,and he mentioned glueing and vulcanizing, so my guess would be the sawblade like part was for roughing up parts for glueing or vulcanizing. My guess is it's a tack puller/scarificator.
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