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US Patent: 2,061,626
Grinding and Polishing Apparatus
Patentee:
Charlie L. Hawes - Ashtabula, OH

USPTO Classifications:
451/361

Tool Categories:
metalworking machines : polishing machines
metalworking machines : grinding machines

Assignees:
None

Manufacturer:
C. L. Hawes - Ashtabula, OH

Witnesses:
none listed

Patent Dates:
Applied: Dec. 22, 1933
Granted: Nov. 24, 1936

Patent Pictures:
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"Vintage Machinery" entry for C. L. Hawes
Description:
Abstract:

In the mounting of grinding and polishing wheels, there has been no particular difficulty with devices for rough or ordinary usage. In the case of precision work however, if a bodily-movable wheel is desired, it has been a serious problem to attain free mobility and yet have sufficient accuracy. Vibration and chattering and rebound have constituted difficult obstacles. A construction which offers freedom from such limitations, and which is at the same time not unduly complicated, is accordingly an important desideratum in the art.

Claims:

1. A grinding and polishing machine, comprising a frame, a grinding or polishing wheel, a shaft for the grinding or polishing wheel, a crosshead for carrying said shaft, a screw-threaded control means in said frame for positioning said cross-head with total freedom of upward movement, means for mounting said cross-head in maintained parallelism in said frame, and means for floatably supporting said cross-head without connection thereto.

2. A grinding and polishing machine, comprising a frame, a grinding or polishing wheel, a shaft for the grinding or polishing wheel, a cross-head for carrying said shaft, and a fluid pressure bellows unconnected to said cross-head supporting and cushioning the same.

3. A grinding and polishing machine, comprising a grinding or polishing wheel, a shaft for the grinding or polishing wheel, a cross-head carrying said shaft, a screw-threaded control means in said frame for positioning said cross-head,

fluid-pressure means unconnected to said crosshead cushionably supporting the same, and housing-means enclosing the said frame and crosshead.

4. A grinding and polishing machine, comprising a grinding or polishing wheel, a shaft for the grinding or polishing wheel, a cross-head for carrying said shaft, and means for inhibiting vibration of said wheel, said means including a wrought metal frame, rock-arms connecting the upper and lower portions of said cross-head to the frame, a driving motor secured to said cross-head below said shaft, and means for cushionably supporting said cross-head.

5. A grinding and polishing machine, comprising a grinding or polishing wheel, a shaft for said wheel, a cross-head in which said shaft is carried, means for mounting said cross-head for freedom of movement in a vertical plane, and means for inhibiting vertical vibration of said wheel, said means including a frame of low vibrational-response, a driving motor hung on said cross-head below said shaft, and a cushion in the path of said cross-head.

6. A grinding and polishing machine, comprising a grinding or polishing wheel, a shaft for said wheel, a cross-head in which said shaft is carried, means for mounting said cross-head for freedom of movement in a vertical plane, and means for inhibiting vertical vibration of said wheel, said means including a frame of low vibrational-response, a driving motor hung on said cross-head below said shaft, and a fluid-pressure buffer in the path of said cross-head opposing downward movement thereof.

7. A grinding and polishing machine, comprising a grinding or polishing wheel, a shaft for said wheel, a cross-head in which said shaft is carried, means for mounting said cross-head for freedom of movement in a vertical plane, and means for inhibiting vertical vibration of said whee1, said means including a frame of low vibrational-response, a driving motor hung on said crosshead below said shaft, and a fluid-pressure bellows supporting said cross-head against vibration.

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