Manufacturers Index - William L. Procunier | Procunier Safety Chuck Co.
William L. Procunier | Procunier Safety Chuck Co.
Chicago, IL, U.S.A.
Company Website: http://www.rockford-ettco.com/CreatechName.aspx
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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164,999
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Jun. 29, 1875
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Improvement in Bits for Boring Wood
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Gardner L. Holt |
Springfield, MA |
Holt cites a combination of a "reamer point," sharp edged spiral grooves and slightly enlarged diameter threaded portion of the shaft where it enters the head as the basis for this patent.
The 1884 catalog of post-drill maker J. W. Manneer features "Holt's Patent Gimlet Bits" on page 14. The illustration shows the maker's name of G. L. Holt, as well as the patent date. |
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900,122
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Oct. 06, 1908
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Yielding Bit and Tap Chuck
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William L. Procunier |
Chicago, Cook County, IL |
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1,037,796
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Sep. 03, 1912
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Bit and tap and die chuck
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William L. Procunier |
Chicago, IL |
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1,117,241
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Nov. 17, 1914
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Bit and tap chuck
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William L. Procunier |
Chicago, IL |
See also patent 1,037,796. |
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1,781,192
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Nov. 11, 1930
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Tapping attachment
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Harry G. Procunier |
Chicago, IL |
This patent simplifies the original Procunier tapping attachment. |
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1,857,012
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May. 03, 1932
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Tap holder
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Mark H. Corley |
Chicago, IL |
Improvement on patent 1,117,241. |
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1,873,476
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Aug. 23, 1932
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Tap holder
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Harry G. Procunier |
Chicago, IL |
This chuck-and-collet system is used on Procunier tapping heads. |
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2,098,675
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Nov. 09, 1937
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Tool-holding chuck and collet therefor
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Harry G. Procunier |
Chicago, IL |
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