Set 327

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1873. Approximately 3-1/2" long:

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1874. 9" long:

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1875. This device was sent in by a visitor who is looking to identify it:

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Close-up of the name plate






















1876. About 11" long, take a look at Neatorama for more guesses on this one and a chance to win a T-shirt:

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1877. The idea here is to describe who would have used these items, the tool at the top is 11" long:

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1878. Around 30" diameter:

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Answers:

1873. A watchmaker's uprighting tool for setting up escapements in full plate watches, made by Hardinge Bros., Chicago, Illinois.

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1874. An Alaska Ice Chipper:

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1875. Someone sent me the answer for this one, it's a device that monitors the ticking of a watch so you can adjust it quickly, for use at a watch shop or factory. You put the watch on the holders and the electrical apparatus keeps time and determines whether the watch is ticking fast or slow. This way you don't have to take a day or week trying to adjust it.

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1876. An anti-theft automobile wheel lock, it was attached to one of the old spoke tires, patent number D57,729.

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1877. These are all safecracker's tools that were confiscated by the police in the early 1900s. According to this site:

For gunpowder (black powder) to be charged into a mechanism such as this would require that a hole be drilled through the door plate. This would have been done using either a belly brace or a ratchet drill.

This was not always necessary however as in the early days the keylocks were capacious enough to accept enough black powder, which, being detonated in such a confined space could remove the lock cap and bolt allowing the boltwork to be withdrawn.

The two tools at the top of the photo are for blowing black powder into the keyhole or drilled hole, the item with the lens is some type of light, not sure what the device at the bottom left is for, looks to be some kind of heater.


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1878. A Sound Dome by Brown Innovations, if you stand under it you can hear the audio but if you step a few feet away you will notice that the sound does not travel far, these are typically used in museums with video presentation or other displays.

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