US Patent: 2,601,799
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| Predetermined Torque Release Wrench
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Patentee:
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| Robert E. Garwood (exact or similar names) - Los Angeles, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 18, 1951 |
| Granted: |
Jul. 01, 1952 |
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Stan Schulz
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Description: |
| Wilfred E. Lawson - patent attorney
I claim:
In a predetermined torque release wrench, a tubular body of T-form, a wrench spindle within the bore of the leg of said body, a socket element so within the said bore below said spindle, cooperative ratchet teeth on the adjacent ends of said socket element and the spindle, a coil spring within the said bore below said socket element urging the latter upward to maintain the ratchet teeth engaged, an annular element threaded into the lower end of the said bore to adjust the tension of said spring, the upper end of said spindle being squared, a piston slidably mounted within each of the opposite arms of said body to be alternately abutted against the adjacent of the flat faces of the said squared end, a coil spring within each of the said arms and bearing against the outer end of the complemental of said pistons, a cap member threaded on the outer end of each of the said, arms to adjust the tensioning effort of the associated spring on the adjacent of said pistons, each of said arms having an elongated recess formed in the same adjacent the inner ends thereof, a lever pivoted in each of the said recesses, each of the cap members having spaced notches formed in the inner end edge thereof, and a coil spring within each of said recesses and cooperative with the respective of said levers, to maintain an end of the same selectively engaged in the said notches to retain said caps against displacement from their positions of adjustment.
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