Brake system for focal plane shutters of photographic cameras

Details Brake system for focal plane shutters of photographic cameras Brake system for focal plane shutters of photographic cameras

1977-07-13

1978-08-29

Gellner, Michael L.

354226, G03B 908

Patent

active

041107730

ABSTRACT:
A focal plane shutter for a photographic camera has a brake system for braking the movement of shutter elements just before they reach their end or stop positions. At least one first brake element has a nearly constant braking torque, and at least one second brake element has a braking torque that increases over the distance of the braking movement. The constant and the increasing braking torques of the first and second braking elements are combined and applied to moving elements of the shutter, and both the constant and the increasing braking torques of the first and second brake elements are independently adjustable and settable.

REFERENCES:
patent: 2295812 (1942-09-01), Strassenburg
patent: 2878735 (1959-03-01), Willcox

Affiliated with

Also associated with

Rating

Brake system for focal plane shutters of photographic cameras does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brake system for focal plane shutters of photographic cameras, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brake system for focal plane shutters of photographic cameras will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1636791