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Manufacturers Index - Hanna Engineering Works
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
606,543 Jun. 28, 1898 Self-lubricating engine Elmer E. Hanna Chicago, IL At about the same time this patent was issued the inventor also developed a pneumatic screen shaker for foundry use, and ended up leaving Gates Iron Works, with their blessing, to establish Hanna Engineering Works which manufactured the shaker and other products for foundry and boiler-making use.
1,195,349 Aug. 22, 1916 Lubricator Philetus Warren Gates Chicago, IL
1,211,431 Jan. 09, 1917 Lubricator Albert J. Gates Chicago, IL Lubrication for "a motor operated by compressed air", as in a riveter.
1,211,432 Jan. 09, 1917 Lubricator Philetus Warren Gates Chicago, IL
1,400,282 Dec. 13, 1921 Molding-machine Philetus Warren Gates Chicago, IL
1,404,126 Jan. 17, 1922 Riveter William P. Krause Chicago, IL
1,620,253 Mar. 08, 1927 Lubricator Philetus Warren Gates Chicago, IL Improvements to the lubricators of patents 1,211,431, 1,211,432, and 1,195,349.