Thursday, July 7, 2011

Set 396

For first time visitors I recommend this archive for some of my best posts.




2287. 7" long:

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2288. 8" diameter, take a look at Neatorama for more guesses and a chance to win a T-shirt:



























2289. 4-1/2" long, made of aluminum, sent in by a visitor:

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2290. Around 15" long:

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2291. About 8" long:



























2292. 30" long:

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Answers:



2287. These are both mackerel plows:
Used by New England fishermen aboard mackerel schooners in the 19th century, this unusual tool converted poor “leather-bellies” to large “Number 1” fish with a few short strokes. Mackerel caught in seines at the beginning of the season—in spring and early summer—were generally lean, dry, and tough, and not worth much at market. But fishermen found a way to plump them up to command a higher price. After splitting a scrawny mackerel down its back with a larger knife, a fisherman would make several slashes parallel to the backbone with the small blade of the plow. Like plowing furrows on land, the slashes opened the flesh, causing the fish to swell, which could bring a higher price.


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2288. An anvil for hand forming sheet metal with a hammer, for making armor or other curved metal parts, also called sinking or doming, this is a relatively fast method but it results in stretching and therefore thinning the metal, risking failure of the metal if it is 'sunk' too far.


It's similar to a dishing stump, which is a bowl shaped depression cut into a tree stump.



It's part of a set of three progressively more dished anvils, this is the least dished and is currently being used to form an elbow protector. When fully curved, it will be lined with closed cell foam and have leather straps attached.



























2289. A tool used for removing the locking wedge on a black powder rifle, the locking wedge connects the barrel of the gun to the stock:









The owner of this tool describes how to use it:
"You grasp it in your hand (convenient finger grooves) and use the square end to hammer the wedge loose. You then use the chisel end to push the wedge all the way out."

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2290. A Merle adjustable corner clamp, the steel band is used to clamp picture frames, shelving, furniture, etc.

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2291. A tire repair scraper from 1926, used when applying patches to tires or inner tubes, patent number 1,632,544:



























2292. A Diston Gauge Saw:
Adapted to tenoning, shouldering, dovetailing, curving, cog-cutting, or any purpose where a definite depth of cut is required.


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The back saw has a stiffening rib that allows for better control and more precise cutting when making dovetails, mitres, or tenons.



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To submit photos, send them to the address in my profile.















Last week's set is seen below, click here to view the entire post.








More discussion and comments on these photos can be found at the newsgroup rec.puzzles.

Thursday, June 30, 2011

Set 395

For first time visitors I recommend this archive for some of my best posts.




2281. 16" tall:

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2282. 14" tall, these are made of sheet metal and are hollow:

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2283. 11-1/2" tall, sent in by a visitor who is looking to find the purpose of this device:



There is 2-1/4" clearance between the blades and the slotted base.




Text on it reads “Made in Italy” and “Kalian – N.Y.C. 5177”.




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2284. Around 10-1/2" long, take a look at Neatorama for more guesses and a chance to win a T-shirt:

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2285. Two partial shots:





























2286. 29" long:

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Answers:


2281. This was part of a display of riverboat gambling devices in a museum:

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2282. These are rivet catchers, used by riveters building ships, bridges or skyscrapers to catch the white hot rivets thrown from the worker at the forge:

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One can be seen very briefly at 20:10 in this video on the Empire State Building:


























2283. Haven't yet been able to verify the purpose of this device:


































2284. A mailing machine, used to put addresses on newspapers or magazines, it has a glue roller and a blade for cutting the paper, patent number 1,513,876:

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2285. These are both Archimedes type egg beaters, they work in the same way as the Archimedes drill, if you hold the handle and move the center part up and down it causes the business end to spin:



































2286. An Edmund Draper triple armed protractor that was used by army engineers in the 1800s:

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"The Hand Held Corn Sheller &" is a comprehensive book by Jim Moffet that contains patents, photos, and the history of shellers. This is an excellent book for anyone interested in farming or corn related items, the price is $40, orders can be placed at the email address below, there is a good review of it on this site.
























To submit photos, send them to the address in my profile, please include dimensions, any text on the item, and where it was found.















Last week's set is seen below, click here to view the entire post.








More discussion and comments on these photos can be found at the newsgroup rec.puzzles.