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
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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1,239,857
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Sep. 11, 1917
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Lathe
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Charles F. Williams |
Erie, Erie County, PA |
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1,318,519
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Oct. 14, 1919
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Thread-cutting machine
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Charles F. Williams |
Erie, PA |
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211,956
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May. 24, 1921
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Thread cutting machine
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Charles F. Williams |
Erie, PA |
This is the Canadian equivalent of US patent 1,318,519. |
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243,035
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Sep. 16, 1924
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Pipe threading machine
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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. |
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1,527,185
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Feb. 24, 1925
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Pipe-threading machine
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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. |
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248,427
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Mar. 31, 1925
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Pipe threading machine
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Leslie S. Hall |
Erie, PA |
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253,990
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Sep. 22, 1925
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Lubricating device for threading machines
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Leslie S. Hall |
Erie, PA |
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253,991
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Sep. 22, 1925
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Cutting off and reaming attachment for threading machines
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Leslie S. Hall |
Erie, PA |
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253,992
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Sep. 22, 1925
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Steadying block for threading machines
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Leslie S. Hall |
Erie, PA |
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253,993
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Sep. 22, 1925
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Die head for threading machines
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Leslie S. Hall |
Erie, PA |
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253,994
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Sep. 22, 1925
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Chaser bit holder for threading machines
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Leslie S. Hall |
Erie, PA |
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255,579
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Nov. 17, 1925
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Pipe threading machine
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Leslie S. Hall |
Erie, PA |
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1,576,652
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Mar. 16, 1926
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Pipe Threading Machine
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Leslie S. Hall |
ON,, Canada |
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260,513
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May. 04, 1926
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Threading machine
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Leslie S. Hall |
Erie, PA |
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1,586,362
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May. 25, 1926
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Gear box for threading machines and the like
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Leslie S. Hall |
Erie, PA |
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263,252
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Aug. 03, 1926
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Belt tensioning device
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Leslie S. Hall |
Erie, PA |
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1,603,280
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Oct. 19, 1926
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Die Head for Threading Machines and the Like
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Leslie S. Hall |
Erie, Erie County, PA |
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1,638,030
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Aug. 09, 1927
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Pipe Threading Machine
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Leslie S. Hall |
ON,, Canada |
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1,655,542
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Jan. 10, 1928
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Die head for threading machines and the like
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Leslie S. Hall |
Erie, PA |
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1,666,135
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Apr. 17, 1928
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Belt-tensioning device for threading machines and the like
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Leslie S. Hall |
Erie, PA |
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1,673,979
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Jun. 19, 1928
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Cutting off and reaming attachment for threading machines and the like
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Leslie S. Hall |
Erie, PA |
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1,721,129
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Jul. 16, 1929
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Adjusting Means for Threading Dies
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George M. Mehl |
Erie, Erie County, PA |
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1,724,497
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Aug. 13, 1929
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Threading die
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George M. Mehl |
Erie, PA |
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1,857,208
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May. 10, 1932
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Chamfering Tool and Holder
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Henry R. Metz |
Erie, Erie County, PA |
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1,918,439
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Jul. 18, 1933
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Chuck
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Lawrence K. Warman |
Erie, Erie County, PA |
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