Improvements in or relating to Bramah locks

Details Improvements in or relating to Bramah locks Improvements in or relating to Bramah locks

1978-03-20

1980-02-12

Wolfe, Robert L.

Locks

Operating mechanism

Key

70363, 70365, E05B 2900

Patent

active

041877055

ABSTRACT:
There is disclosed a Bramah lock suitable for use on a safe-deposit box or an armored door in which the bolt of the locking mechanism is actuatable by bars which are disposed in serially arranged sets extending through the door to a keyhole and co-operable by abutment so that displacements of the bars relatively adjacent to the keyhole are not transmitted to bars relatively remote therefrom. An externally toothed gear coaxially of the barrel is operatively disposed between the barrel and the bolt for controlling the operation of the latter. There are a plurality of toothed sector members with slots in engagement with a fence plate when they are in alignment, the fence plate being driven by a check fence plate resiliently connected thereto and displaceable in response to the barrel motion so as to permit rotation of the barrel even if the fence member is not in engagement with the slots in the sector members.

REFERENCES:
patent: 2023847 (1935-12-01), Liss
patent: 3035433 (1962-05-01), Testa

Affiliated with

Also associated with

Rating

Improvements in or relating to Bramah locks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improvements in or relating to Bramah locks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improvements in or relating to Bramah locks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1849407