Dead bolt lock

Claim 2

In a dead bolt lock, a retractable bolt manually movable into and out of extended position, an axial shaft extending longitudinally through said retractable bolt and movable therewith, locking means movable into engagement with said retractable bolt, means for manually moving said shaft outwardly from said retractable bolt after said retractable bolt reaches its extended position, and into contact with said locking means and into engagement therewith, said retractable bolt comprising a movable member connected at one end to an actuating means, and having notches formed in the exterior surface adjacent the other end, a barrel in which said bolt reciprocates, said barrel having a longitudinal slot therein, a link pivotally mounted in said barrel having one end extended into said slot, and the other end loosely connected to said axial shaft and positioned to be moved against the end of said axial shaft and move said shaft outwardly from said bolt.

Claim 3

In a dead bolt lock, a retractable bolt manually movable into and out of extended position, an axial shaft extending longitudinally through said retractable bolt and movable therewith, locking means movable into engagement with said retractable bolt, means for manually moving said shaft outwardly from said retractable bolt after said retractable bolt reaches its extended position, and into contact with said locking means and into engagement with said locking means, said locking means comprising a pair of pivotally mounted jaws having yieldable means for normally maintaining said jaws in open position, and said axial shaft being positioned to contact said jaws when moved into extended position to move said jaws into bolt engaging position, a semi-circular passageway in each of said jaws arranged in juxtaposition to form a circular passageway and the end of said axial shaft being tapered and positioned to enter said circular passageway, contacting said jaws and moving same into engaged position.

Claim 4

In a dead bolt lock, a retractable bolt manually movable into and out of extended position, an axial shaft extending longitudinally through said retractable bolt and movable therewith, locking means movable into engagement with said retractable bolt, means for manually moving said shaft outwardly from said retractable bolt after said retractable bolt reaches its extended position, and into contact with said locking means and into engagement with said locking means, said locking means comprising a pair of pivotally mounted jaws having yieldable means for normally maintaining said jaws in open position, and said axial shaft being positioned to contact said jaws when moved into extended position to move said jaws into bolt engaging position, a semi-circular passageway in each of said jaws arranged in juxtaposition to form a circular passageway and the end of said axial shaft being tapered and positioned to enter said circular passageway, contacting said jaws and moving same into engaged position.