Thursday, September 19, 2024
Barcalo Buffalo Nail puller prybar
Isotta Fraschini
Wednesday, September 18, 2024
O.I.T. wrench
Sandow engine
Detroit Motor Car Supply Co. of Detroit built a line of Sandow-named engines from 1912 till 1920.
More info on the Sandow engine here.
Tuesday, September 17, 2024
Brooklyn Navy Yard drydock
Another very early photograph. Taken in 1846, this photograph shows the Brooklyn Navy Yard's first dry dock being constructed. It was completed in 1850 and has been in operation ever since. The image below is from a 2018 article in Curbed New York.
Allen brand ratchet
In 1910 William G. Allen patented a setscrew with an internal (socket) hex for tightening the screw, this became known as the Allen screw and the Allen Manufacturing company was set up in 1913 to produce the setscrews and accompanying hex keys. Although Mr. Allen left the company shortly thereafter, the company prospered, branching out into regular wrenches and related tool sets. Somewhere along the way they became part of the Armstrong tool company which was swallowed up by Danaher in 1994. In 2012, Danaher sold their tool business and it became part of Apex Tool Group.
This ratchet has the Danaher era logo so must have been made post 1995.
datamp.org |
Monday, September 16, 2024
1934 Austin Seven
1912 Airshow, loop the loop!
Sunday, September 15, 2024
Saturday, September 14, 2024
Guarantee Motor Co.
The company seems to have dealt in marine engines at the beginning of the last century. I suspect it was a short lived venture, no information comes up. That area of the city has been built over, anything industrial is long gone. I’d like to see the engine trouble book.
Friday, September 13, 2024
Dynamic Fab
It seems there is a neverending list of companies that made C clamps, but maybe, as they say, you can never have too many clamps.
Once again no information for the name online, just a couple on ebay.
Torpedo boat USS Alarm
The USS Alarm was built at the Brooklyn Navy Yard and launched in 1873, an attempt by the Navy to introduce experimental new technology to the military. Times were changing, newfangled steam power was being accepted as well as breech loading guns. The Alarm was to be a fast sleek Torpedo boat, and featured a 24 foot long ramming bow. The torpedos were attached to extending spars at the bow. An attack would consist of the torpedo boat ramming an enemy ship while extending explosives on spars towards the ship. There was a single forward firing 15 inch Dahlgren gun to increase the firepower. Provisions for filling the hull with water to decrease its silhouette were also tried.
Instead of paddle wheels or propellers, the ship was fitted with a new design "Fowler Wheel" which was a vertical shaft with 4 paddles attached. The paddles were feathered by a cam till they approached the starboard where the paddle wheel extended to provide forward motion. It was not successful, it was very inefficient and the boat never achieved the speed anticipated. There were additional modifications tried but the boat was reduced to a gunnery training vessel, probably never used and scrapped in 1898. Pretty sure this was an exercise in deadends. More here.
Thursday, September 12, 2024
Wednesday, September 11, 2024
Harley patent 1,510,937 1924
Tuesday, September 10, 2024
American Snowmobile Oil
I knew that logo looked familiar (we don't have it in Canada). In 1985, American changed its corporate name to Amoco (from American Oil Company) and kept the red, white and blue Torch logo. In the mid-twentieth century it was ranked the largest oil company in the United States.
Monday, September 9, 2024
Monday Mystery, a something-Anchor
They look like some sort of longitudinally clamping device, and apparently a patent was applied for. Any guesses before we do a Google image search?