Parallel rule

Details Parallel rule Parallel rule

1989-05-04

1990-04-10

Cuchlinski, Jr., William A.

Geometrical instruments

Straightedge type

With means for moving straightedge over a surface

33448, B43L 1302

Patent

active

049148249

ABSTRACT:
A parallel rule including a rule body, a gripping attachment and two rolling devices which are installed at each end of the rule body. The rolling device has a cylindrical roller and a pair of anchorage portions extending from its end so that the roller is retractable. An opening is provided at each end of the rule body for the roller of the rolling device to project from. By use of the rolling device, the parallel rule is movable.

REFERENCES:
patent: 51609 (1865-12-01), Munson
patent: 630923 (1899-08-01), Palmer
patent: 705473 (1902-07-01), Sternfeld
patent: 1051712 (1913-01-01), Eager
patent: 1267665 (1918-05-01), Hindley
patent: 1276955 (1918-08-01), Pidgeon
patent: 2112069 (1938-03-01), Cooper
patent: 2234467 (1941-03-01), De Lisle
patent: 2670541 (1954-03-01), Preiss
patent: 3195235 (1965-07-01), Regan
patent: 3462846 (1969-08-01), Goerz

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2290832