US Patent: 1,790,550
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| Grinding Machine
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Patentee:
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| Maxwell I. Mathewson (exact or similar names) - Providence, Providence County, RI |
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Patent Dates:
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| Applied: |
Jul. 19, 1927 |
| Granted: |
Jan. 27, 1931 |
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Patent Pictures:
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Joel Havens
Vintage Machinery entry for Browne & Sharpe Mfg. Co.
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Description: |
| Abstract:
The invention relates to grinding machines and more particularly to that type of machine in which the grinding wheel is mounted on a carriage to move toward and away from the work and the work is mounted on a work supporting table to move back and forth longitudinally of the grinding wheel spindle. The objects of the invention are to reorganize and improve the construction and operation of the several cooperating elements of a grinding machine to secure a smoother and more efficient operation of the machine, to eliminate all unnecessary shock or jar in starting and stopping the work supporting carriage, to increase the speed at which machines of this type may be operated, to extend still further the automatic operation of the several cooperating elements, and finally to secure a more adequate control of these elements by the operator.
Claim:
A grinding machine having, in combination, a reciprocating table for supporting the work, a table drive, a reversing mechanism for controlling the reciprocation of the table from the table drive, mechanism for imparting a dwell in the movement of the table at each end of its reciprocating movement, and means for cushioning the movement of the table drive to move the table in an opposite direction. |
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