Mechanical protractor

Details Mechanical protractor Mechanical protractor

1976-04-21

1977-10-18

Aegerter, Richard E.

Geometrical instruments

Miscellaneous

Light direction

33 1PT, 331415, 33142, G01B 312, G01B 500, G01B 700

Patent

active

040539857

ABSTRACT:
A device for measuring and indicating the angle between two lines includes a housing having two wheels rotatably mounted therein. The wheels are spaced from each other at a distance predeterminedly related to the radii of the wheels. In one embodiment, a shaft is affixed at a first end to the first wheel. The second end of the shaft extends through the second wheel and is secured to a pointer disposed adjacent to the second wheel. The second wheel is calibrated with indicia indicating the relative rotation of the first and second wheels in degrees so that the position of the pointer relative to the indicia indicates the angle measured by the device. One of the wheels may also include a toothed wheel for transmitting the rotation of the wheel to a linear distance indiating device for measuring the total linear distance traveled by the device. Also disclosed is an embodiment employing electrical components for electrically measuring the angle and providing an indication of the measured angle.

REFERENCES:
patent: 1711791 (1929-05-01), Kambo
patent: 2495974 (1950-01-01), Kelley
patent: 2878566 (1959-03-01), Mellen
patent: 3497959 (1970-03-01), Engelsman
patent: 3882606 (1975-05-01), Kaenel et al.

Affiliated with

Also associated with

Rating

Mechanical protractor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical protractor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical protractor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1441850