Self-locking-and-measuring ruler for computer-printout forms

Details Self-locking-and-measuring ruler for computer-printout forms Self-locking-and-measuring ruler for computer-printout forms

1984-07-03

1985-11-26

Stearns, Richard R.

Geometrical instruments

Straightedge type

Base attached

33450, 33473, B43L 1324

Patent

active

045547467

ABSTRACT:
The present invention provides a self-locking-and-measuring, straight-edge apparatus designed to allow one to very accurately draw spaced parallel lines, particulary horizontal ones, the straight-edge being especially designed for ruling computer-printout forms. The apparatus comprises a scaled guide bar that is affixed perpendicularly to a drafting table, or the like, on which a straight-edge assembly is slidably and adjustably mounted, so as to move longitudinally along the scaled guide bar. The straight-edge assembly includes a base plate having a spring-biased latch positioned to selectively engage any one of a plurality of scaled notches formed along the longitudinal edges of the scaled guide bar. A straight edge is adjustably attached to the base plate.

REFERENCES:
patent: 393290 (1888-11-01), Both
patent: 471428 (1892-03-01), Miller
patent: 1632267 (1927-06-01), Beem
patent: 3145589 (1964-08-01), Jonker

Affiliated with

Also associated with

Rating

Self-locking-and-measuring ruler for computer-printout forms does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-locking-and-measuring ruler for computer-printout forms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-locking-and-measuring ruler for computer-printout forms will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-264133