Manufacturers Index - Allen Manufacturing Co.
Allen Manufacturing Co.
Chicago, IL, U.S.A.
Manufacturer Class:
Wood Working Machinery
This page contains information on patents issued to this manufacturer.
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USPTO's for finding information on machinery patents.
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960,244
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Jun. 07, 1910
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Manufacture of Screws
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William G. Allen |
West Hartford, CT |
The patent describes a process to form sockets in the heads of screws, using an angular punch and round die. Allen Safety Set Screws which had no protruding heads were a primary application for the process; the process was also used to form socket headed screws of various types, pipe plugs, and detachable sockets for a variety of socket wrench sets. All these were produced and sold by the Allen Mfg. Co. of Hartford, CT. The hexagon wrenches for the socket headed screws gave us the generic "Allen wrench." |
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1,165,989
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Dec. 28, 1915
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Threading-die
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David Weir |
Hartford, CT |
The assignee company, Allen Mfg. Co. of Hartford, was the originator of both the socket-head set screw ("the Allen safety set screw") and the Allen wrench, and was the first to manufacture pressed-and-broached socket wrench sets, the approach used to make virtually all sockets today. The company was founded in 1910 by William G. Allen. |
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Threading-die
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William J. McIntyre |
Hartford, CT |
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1,371,350
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Mar. 15, 1921
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Wrench
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Solomon A. Campbell |
Newton, Middlesex County, MA |
The patent claims the structure of the head with passage for sliding handle, and the ratchet structure. Other features shown in the drawings and described in the specifications are not noted in the claims.
The ratchet and rod handle appear as components of a "Bay State" ratchet and socket set advertised by the Allen Mfg. Co. of Hartford, Conn. in 1922. |
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1,489,696
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Apr. 08, 1924
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Socket Wrench
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Solomon A. Campbell |
Hartford, CT |
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2,037,681
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Apr. 14, 1936
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Tool Holder
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Clarence S. Gates |
Hartford, Hartford County, CT |
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