Suiter Swantz IP takes a look back at past inventions and inventors with our Patent of the Day.  

On this day in 1868, Alvin J. Fellows was granted U.S. Patent No. 79,965 for a IMPROVEMENT IN TAPE MEASURES.

An excerpt from the patent states:

Be it known that I, Alvin J. Fellows, of the city and county of New Haven, in the State of Connecticut, have invented a new and useful Improvement in Spring Measuring Tapes… My improvement consists in the manner of fitting the spring-click which detains the main or primary spring to the central part of the main-spring barrel, so as to hold the tape at any desired position.

I am aware that metallic cases have-been used with the same kind of main-spring, and with a click-spring attached to the removable side or cap of the case, by being soldered to its inner surfaces, and a knob attached to the outer surface of’ the said removable side, to release the click, and allow the tape to be-drawn in by the main-spring; I therefore do not claim any such device, but
What I claim as my invention, and desire to secure by Letters Patent, is—
The combination of the case A with the plate b’, click-spring d d’, and the arm e, and knob f, when the whole is constructed, arranged, and fitted for use, substantially as herein described.

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