Hacksaw with improved blade tensioning mechanism

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United States of America Patent

PATENT NO 4367779
SERIAL NO

06246273

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Abstract

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A hacksaw with an improved mechanism for adjusting the tension on the blade. The mechanism includes a lever for vertically moving a rod to pivot a rocker arm to place tension on the rocker arm-held blade. The rod has an adjustment knob at its lower end to precisely select final blade tension. The lever has a latch means for securely locking the lever closed, and the latch means has a safety feature which prevents accidental and sudden unlocking of the lever.

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Patent Owner(s)

  • PARKER MANUFACTURING COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ewig, John F Worcester, MA 5 80

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