Ruler for fixed-distance movement

Details Ruler for fixed-distance movement Ruler for fixed-distance movement

1987-09-25

1988-12-13

Haroian, Harry N.

Geometrical instruments

Straightedge type

Base attached

B43L 1302

Patent

active

047900776

ABSTRACT:
A ruler for fixed-distance movement which includes a guide member provided at one end of a linear ruler section and slidable at a specified angle along a guide section of a base plate; a leaf spring containing a projection, mounted at the same one end of the ruler section; a corrugated gear provided along the same guide section of the base plate, the corrugated gear having a plurality of recesses at regular intervals for engagement with the projection of the leaf spring. The projection of the leaf spring, when engaged with a recess of the corrugated gear, stops the movement of the ruler section, thus enabling the ruler section to move step-by-step over a fixed distance at a specified angle to the guide section.

REFERENCES:
patent: 121026 (1871-11-01), Briesen
patent: 2439291 (1948-04-01), Fielding
patent: 2822736 (1958-02-01), Padgett
patent: 4679328 (1987-07-01), Saad

Affiliated with

Also associated with

Rating

Ruler for fixed-distance movement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ruler for fixed-distance movement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ruler for fixed-distance movement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2189413