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Manufacturers Index - John H. Hall & Sons, Ltd. / Williams Tool Corp.

John H. Hall & Sons, Ltd. / Williams Tool Corp.
Erie, PA; Brantford, ON, Canada
Manufacturer Class: Metal Working Machinery

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
1,318,519 Oct. 14, 1919 Thread-cutting machine Charles F. Williams Erie, PA
211,956 May. 24, 1921 Thread cutting machine Charles F. Williams Erie, PA This is the Canadian equivalent of US patent 1,318,519.
243,035 Sep. 16, 1924 Pipe threading machine Leslie S. Hall Erie, PA The inventor's location was altered by hand on the specification, from Brantford, Ontario to Erie, Pennsylvania. This patent is the Canadian equivalent of US patent 1,527,185.
1,527,185 Feb. 24, 1925 Pipe-threading machine Leslie S. Hall ON, Canada This patent primarily covers a new die head which was sold as the "Williams Patent Receding Die Head". This die head was particularly suited for cutting long or special tapers: the head could cut any taper of thread over any desired length. This feature was apparently particularly useful for the oil and gas industries.
248,427 Mar. 31, 1925 Pipe threading machine Leslie S. Hall Erie, PA
253,990 Sep. 22, 1925 Lubricating device for threading machines Leslie S. Hall Erie, PA
253,991 Sep. 22, 1925 Cutting off and reaming attachment for threading machines Leslie S. Hall Erie, PA
253,992 Sep. 22, 1925 Steadying block for threading machines Leslie S. Hall Erie, PA
253,993 Sep. 22, 1925 Die head for threading machines Leslie S. Hall Erie, PA
253,994 Sep. 22, 1925 Chaser bit holder for threading machines Leslie S. Hall Erie, PA
255,579 Nov. 17, 1925 Pipe threading machine Leslie S. Hall Erie, PA
260,513 May. 04, 1926 Threading machine Leslie S. Hall Erie, PA
1,586,362 May. 25, 1926 Gear box for threading machines and the like Leslie S. Hall Erie, PA
263,252 Aug. 03, 1926 Belt tensioning device Leslie S. Hall Erie, PA
1,655,542 Jan. 10, 1928 Die head for threading machines and the like Leslie S. Hall Erie, PA
1,666,135 Apr. 17, 1928 Belt-tensioning device for threading machines and the like Leslie S. Hall Erie, PA
1,673,979 Jun. 19, 1928 Cutting off and reaming attachment for threading machines and the like Leslie S. Hall Erie, PA
1,724,497 Aug. 13, 1929 Threading die George M. Mehl Erie, PA