Alcorn & Ames; Alcorn Machine Co. - Assigned Patents

Manufacturers Index - Alcorn & Ames; Alcorn Machine Co.

Alcorn & Ames; Alcorn Machine Co.
Waltham, MA, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
325,229	Sep. 01, 1885	Machinist's Planer	John S. Alcorn	Hartford, Hartford County, CT	Albert H. Walker - patent attorney We can find no other reference for Alcorn & Sexton other that Kenneth Cope's research, published in his books. This patent is for a planer tool lifter. In 1885, John S. Alcorn was working for Pratt & Whitney Co. and Joel B. Sexton was working for Cushman Chuck Co. Abstract: This invention is a mechanism for lifting the of cutting-tool away from all contact with the thing being planed at the end of the forward stroke of the carriage which carries that thing, and for lowering that tool to its former position at the end of the backward stroke of that carriage.
CA-109,671	Jan. 14, 1908	Rotary fluid engine	John Stuart Alcorn	Boston, MA	This is the Canadian equivalent of US patent 914,627.
FI-3,263	Feb. 13, 1908	Devices for liquid or gas engines or pumps	John Stuart Alcorn	Boston, MA	This is the Finnish equivalent of US patent 914,627.
914,627	Mar. 09, 1909	Rotary engine	John Stuart Alcorn	Boston, MA	Equivalent patents were obtained in Austria, Canada, Finland and Switzerland (44,201, 109,671, 3,263, 42,938).
CH-42,938	Mar. 16, 1909	Steam engine with a rotating piston and a hollow cylinder rotating in the same direction but at a different speed in a housing	John Stuart Alcorn	Boston, MA	This is the Swiss equivalent of US patent 914,627.
AT-44,201	May. 15, 1910	Sealing device for engines or pumps with rotating pistons	John Stuart Alcorn	Boston, MA	This is the Austrian equivalent of US patent 914,627.
1,354,937	Oct. 05, 1920	Differential gearing	John S. Alcorn	New Haven, CT	The invention is a type of limited-slip differential that allows normal differential operation when the difference between the speed of the two half-axles is small but which behaves like a solid axle when one of the wheels loses traction, as on a wet or icy patch of road.
CA-222,025	Aug. 08, 1922	Differential gearing	John S. Alcorn	Waltham, MA	This is the Canadian equivalent of US patent 1,354,937.