US Patent: 1,685,604
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| Hand Punch and the Like
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Patentee:
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| John Jensen (exact or similar names) - Rockford, Winnebago County, IL |
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Patent Dates:
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| Applied: |
Nov. 27, 1925 |
| Granted: |
Sep. 25, 1928 |
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Joel Havens
"Vintage Machinery" entry for Roper Whitney, Inc.
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Description: |
| Claim:
A tool of the class described comprising an arm having an enlarged bifurcated head at one endi, a working tool mounted in one of said bifurcations for sliding movement toward and from the other of said bifurcations, a pair of supports rigid with and spaced longitudinally along one side of said head, a working lever pivoted on the forward one of said supports and having one end engaging said tool for actuation thereof with the opposite end substantially overlying the other support, a bell crank lever pivoted on the rear one of said supports, and a link pivotally connecting the rear end of said working lev er and the forward end of said bell crank lever effecting a toggle joint therebetween, the pivotal points of said joint being substantially alined at the end of the working stroke in a line perpendicular to a line passing through the pivotal points on the working lever. |
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