This invention relates to locks, and more particularly to a lock of cylindrical form which may be employed in any relation in which a keyoperated lock is desired. Locks of this type very often employ so-called pin tumblers in that they are provided with sectional pins extending transversely.....
2 is a sectional view through the lock S on line 2-2 of Fig. 1; Fig. 3 is a perspective view of the lock or latch case detached from the door; Pig. 4 is a view of the lock mechanism when the cover of the casing is removed to expose the concealed structure; Fig. 5 is a ...
this case is of substantially cylindrical form from front to rear so that it may be inserted in a- cylindrical bore formed in the edge of the;door. This:case I:1, which I term-the main case lock; consists, of: two substantially similar 2,424,782 3 sections 12 and 13, the latter ...
lock housing from the case or knob. This result is effected in the following manner. It will be seen that the shoulder 42 on the collar 23 stands opposite the pin 34, and that this shoulder is substantially equal in diameter to that of the cylindrical housing 17 of the key barrel. ...
A free-wheeling lever handle controller for operating a mortise lock provides free-wheeling functionality while maintaining the full operational characteristics of various mortise lock functions. A lo
locking assemblies, etc. may all be separate from the door lock mechanism referred to here. The door lock mechanism of this invention may control a mortise lock, cylindrical lock, bored lock, exit device or other fire door hardware and may be integrated therewith or may be completely separate...
A changeable combination key lock for safe deposit boxes and the like, wherein a guard key is insertable into a rotatable guard key plug to set guard key tumblers to permit retracting movement of a bo
cylindrical studs78and spring end retaining lug39also extend upwardly from base plate76. A urethane foam pad80is attached to pivotable stop70by conventional spring-lock retainer means82which are received in counter sunk recesses84in which the upper ends of mounting studs78extend. Foam pad80includes...
lock mechanism may be caraed in a tubular case. h45 A still further object of the invention is the provision of a front door lock having all of the functions required of a lock for this location, the mechanism of which is so arranged that it may be housed in a tubular or cylindrical ...