If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
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.
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2,295,130
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Sep. 08, 1942
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Metal Shaper
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John H. Scheiber |
St. Louis, MO |
John D. Rippey - patent attorney
This invention relates to metal shapers; and has general reference to machine tools functioning as metal shaping machines. In the chosen embodiment of the invention shown in the drawings, the machine embodies means for varying the stroke length and the number of strokes per minute to suit the size and type of work to be machined. In some instances, it may be desired to machine short pieces, which may be cut at a high rate of speed; and in other instances, it may be desired to machine long pieces requiring a low cutting speed. The selection of the combination of stroke length and stroke cycles to obtain the required cutting speed is usually dependent upon the selective discretion of the operator. This may be undesirable because an error in making the selection, by combining the maximum stroke length and maximum number of stroke cycles per minute, will cause excessive acceleration and deceleration forces to be set up in the mechanism, with consequent serious impairment of the life of the machine, sometimes resulting in complete failure. Objects of the invention are to limit the frequency of reciprocating cycles obtainable in metal working machines to a predetermined maximum, dependent upon the selection of the desired stroke length, thereby confining the reciprocating stresses in the mechanism within safe limits; to limit the cutting tool speed to an allowable maximum consistent with longer tool life; and to provide means for overcoming or preventing error by the operator in making a selective combination of stroke length and stroke cycles.
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Metal Shaper
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Francis H. Dean |
Normandy, MO |
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2,335,797
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Nov. 30, 1943
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Gear shift locking device
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Francis H. Dean |
Mormandy, MO |
This gear shift lock is designed to cope with the axial forces exerted by helical gears. |
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Gear shift locking device
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John H. Schreiber |
St. Louis, MO |
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2,349,382
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May. 23, 1944
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Machine tool
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Francis H. Dean |
Mormandy, MO |
The main feature of this patent is a system to disable the machine if certain fault conditions occur in the lubrication system. This was marketed as the "Lubrigard" safety mechanism on GEMCO shapers. |
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Machine tool
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John H. Schreiber |
St. Louis, MO |
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