Variable stiffness rule blade, rule employing same, and method o

Details Variable stiffness rule blade, rule employing same, and method o Variable stiffness rule blade, rule employing same, and method o

1982-09-30

1983-10-25

Little, Willis

Geometrical instruments

Area integrators

Electrical

242 848, G01B 310

Patent

active

044110723

ABSTRACT:
A coilable measuring blade for coilable rules has a concavo-convex cross section which has a first portion wherein the length of the arc gradually decreases and the height of the cross section gradually increases to provide greater standout length. The inner or second portion of the blade also has a concavo-convex cross section with a relatively large radius and relatively shallow height. The blade may also have an outer terminal portion of greater height to require its deflection as it enters the rule casing and thereby provide reduction of the speed with which the blade is being retracted into the casing.

REFERENCES:
patent: 950581 (1910-03-01), Tracy
patent: 1730199 (1929-10-01), Farrand
patent: 2050941 (1936-08-01), Farrand
patent: 2319724 (1943-05-01), Dinhofer
patent: 2410420 (1946-11-01), Bennett
patent: 2956795 (1960-10-01), Foster

Affiliated with

Also associated with

Rating

Variable stiffness rule blade, rule employing same, and method o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable stiffness rule blade, rule employing same, and method o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable stiffness rule blade, rule employing same, and method o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-705740