Geometrical instruments – Area integrators – Electrical
Patent
1976-09-30
1978-01-17
Harioan, Harry N.
Geometrical instruments
Area integrators
Electrical
2421076, G01B 310
Patent
active
040683834
ABSTRACT:
A tape measure is disclosed having a hollow casing formed of first and second superimposed casing sections, each including a resilient tongue formed therein. The tongue on the first casing section includes an axial rod extending transversely of the casing to an end located adjacent the tongue on the second casing section. A tape drum is rotatably mounted within the casing and has an opening therein through which the rod extends to permit relative rotation between the drum and the rod. An elongated flexible tape is secured to the drum and is normally wound thereon; and a coil spring is provided within the drum normally biasing the drum in a rotary direction for winding the tape on the drum. The drum and the tongue on the second casing section include cooperating abutments or cam surfaces for normally holding the drum against rotation under the bias of the spring, such that upon depression of the tongue on the first casing section towards the second casing section the rod in the casing moves the tongue on the second casing section away from the drum to disengage the abutments so that the drum is free to rotate under the influence of the spring to wind tape thereon.
REFERENCES:
patent: RE4419 (1971-06-01), Bradley
patent: 467280 (1892-01-01), Lane
patent: 959750 (1910-05-01), Joseph
patent: 2172043 (1939-09-01), Wolf
Harioan Harry N.
HOECHSTMASS Balzer GmbH & Co.
LandOfFree
Tape measure reel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tape measure reel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tape measure reel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2275874