US Patent: 973,124
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| Combined Punch and Shear
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Patentee:
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| Jacob Monsos (exact or similar names) - Minneapolis, Hennepin County, MN |
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Patent Dates:
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| Applied: |
Jan. 24, 1910 |
| Granted: |
Oct. 18, 1910 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Monsos Punch and Shear Co.
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Description: |
| Abstract:
The object of my invention is to provide a. machine by means of which a bar or plate of metal can be easily and quickly punched or cut off.
Claim:
A machine of the class described comprising a base, a bracket overhanging said base, a plunger vertically slidable in said bracket, a punch carried thereby, a link pivotally connected with said plunger and haying a recess, a crank having bearings in said bracket and rotating therein and adapted to enter said recess, said crank exerting a downward pressure on said link and plunger to perform the initial punching operation, and means inoperative during the initial movement of said link but becoming operative during its subsequent movement to complete the punching operation. |
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