John H. Coyle, Julius L. Vargovicsik Improved screwdriver Handle.

woody 73 · Aug 6, 2015

The patent Date was April 16th,1958 and the invention was a new and improved tool handle that can withstand greater torque when turning screws.

The original assignee was the Bridgeport Hardware Mfg. Corp and I am assuming that the name "PRIDE" must have been assigned to that screwdriver line. (Some new facts perhaps for the AA web-site).

http://www.google.com/patents/US2871899

http://www.freepatentsonline.com/2871899.html

Enjoy the pictures it is the only one I ever came across in all my many years of hunting tools.

Stevettt · Mar 25, 2021

I've always liked the design, especially for removing stubborn slotted screws without damaging the heads.
The patent app claims a 50% increase in torque for the same applied effort. Seems to me it might be true.
The square shank also allows application of a wrench for even more torque.

But my favorite quote from the patent is this:
"Screw drivers are invariably used for many purposes other than that for which they are designed.
The most common (is) employing the screw driver as a cold chisel wherein it is often hammered.
Therefore, the sleeve must expose the end of the hard body, otherwise a hammer blow would cause the hammer to fly up into the face of the user."

I'm thinking that last bit may have come to light during product testing.

John H. Coyle, Julius L. Vargovicsik Improved screwdriver Handle.

woody 73

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Stevettt

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