Manufacturers Index - LaPointe Machine Tool Co.
LaPointe Machine Tool Co.
Hudson, MA, U.S.A.
Manufacturer Class:
Wood Working Machinery & Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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If you find a patent number or patent date by this manufacturer that is not on this
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Key to Links for Patent Information
USPTO = U.S. Patent Office .
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on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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371,847
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Oct. 18, 1887
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Machine for polishing pinion-leaves
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Joseph N. Lapointe |
Waterbury, CT |
This patent was issued at least a decade before the inventor established Lapointe Machine Tool Co., but the 1902-12-11 American Machinist mentioned "a machine for polishing pinion leaves" among Lapointe Machine Tool Company's patented tool products. |
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685,772
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Nov. 05, 1901
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Key-seat cutter
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Joseph N. Lapointe |
Hartford, CT |
This invention is for the cutting tool itself rather than the machine that uses it. |
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704,348
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Jul. 08, 1902
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Grinding-machine
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Joseph N. Lapointe |
Hyde Park, MA |
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716,438
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Dec. 23, 1902
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Reamer
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Joseph N. Lapointe |
Hyde Park, MA |
"With such tools as finishing-reamers when used in a turret-machine it is necessary to allow some later play in the support to provide for correct centering in the work, and when they are of large diameter and therefore heavy the natural tendency is for them to sag downward, so that upon entering the work their weight causes them to cut most deeply at the lower side. This distortion gradually decreases as more of the body of the reamer comes into bearing upon the work, being a minimum when the entire length of the blade is in contact. Then as the reamer emerges from the hole this vertical elongation increases until the work is cleared. To obviate such defects are the principal objects of my invention." |
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716,439
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Dec. 23, 1902
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Reamer
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Joseph N. Lapointe |
Hyde Park, MA |
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849,738
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Apr. 09, 1907
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Reamer
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Francis J. Lapointe |
Roxbury, MA |
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876,277
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Jan. 07, 1908
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Key-seat-broaching machine
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Joseph N. Lapointe |
Boston, MA |
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1,088,828
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Mar. 03, 1914
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Cutter-bar and bushing therefor
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Francis J. Lapointe |
New London, CT |
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1,722,832
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Jul. 30, 1929
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Hydraulic transmission
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Donald H. West |
New London, CT |
This patent number was seen below a drawing of a hydraulic pump in a catalog from the Lapointe Machine Tool Co. |
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