Once again, like the Newleva patent wrench, a seemingly clever and ultimately not really useful idea that as far as I know, never was put into production. US patent 644033A
Application filed December 4, 1899. Serial No. 739,128, (No model.)
To whom it may concern:
Be it known that I, FREDERICK SHRADER, a citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented a new and useful Combined Spanner and Wrench, of which the following is a specification.
My invention has for its object to provide a combined spanner and sliding-jaw wrench which shall be neat and attractive in appearance, shall have in full the qualifications for service of both a Spanner and a wrench, and which shall be so simple and inexpensive to produce that it may be placed upon the market at an expense hardly perceptibly larger than the expense of either spanner or wrench alone. With these ends in view I have devised a simple and novel combined spanner and Wrench, the same being an improvement upon and a carrying forward of the principle disclosed in Letters Patent No. 532,238, granted to me May 11, 1897, which I will now describe, referring to the accompanying drawings, forming part of this specification, and using reference characters to designate the several parts.
(The rest of the not-very-interesting blurb at the patent)
This wrench was indeed produced, and in two different sizes; a 5" model for bicycles and a 6.25" model for automobiles. A photo of the smaller one can be seen on the Datamp website here:
ReplyDeletehttp://www.datamp.org/patents/displayPatent.php?pn=644033&id=25301