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Description: |
| Adjusting worm for movable jaw mounted in frame attached to toggle locking lever structure. The adjusting worm sets the movable jaw to size, and the toggle-locking mechanism tightens and sets the grip.
From the specifications: "SUMMARY OF THE INVENTION -- In the lever locking worm adjustable wrench of the present invention, the movable jaw is slidably mounted in a guide track formed in the body or handle of the wrench, thereby maintaining a parallel relationship with the fixed jaw. The worm gear is mounted on a mounting arm and is pivoted by action of the operating lever in a direction which is substantially tangential to the rack gear on the movable jaw. The result is a convenient to use, compact, and positively gripping adjustable wrench."
Known example marked "10" STANLEY / 85-610 PAT 4472986 CHINA"
Patents referenced as relevant prior art: 1,181,654, 1,407,528, 1,410,627, 1,503,662, 1,747,360, 2,481,866, 2,524,689, 3,190,154, 3,241,410, 3,608,405, 4,147,077, 4,375,174
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