Locking arrangement for doors and the like

A locking arrangement for doors and the like,

• said arrangement comprising a door and jamb arrangement,
• at least one elongated bolt adapted for springless extension and retraction,
• said door being locked when said locking bolt is extended into said jamb and unlocked when said bolt is retracted,
• key operated locking means for operation by a key,
• a pair of spaced apart parallel plates,
• each of said plates being attached to and being substantially normal to the longitudinal axis of said locking means,
• pinion gear means mounted between said parallel plates for rotational movement responsive to the operation of said locking means,
• an operating gear wheel being pivotally mounted between said parallel plates positioned to mesh with said pinion gear means to rotate responsive to the rotation of said pinion gear means,
• link means having one end pivotally attached to a fixed point on said operating gear wheel and removed from the center thereof,
• slot means in one of said pair of parallel plates,
• said slot means being radial relative to the center of said operating gear wheel and starting at a point on said one of said pair of parallel plates that is adjacent a point on the operating gear wheel between the center of the wheel and the outer circumference of the wheel and extending toward the outer circumference, and
• pin means extending through said radially extending slot for pivotally attaching a fixed point on said at least one elongated locking bolt external to said pair of parallel plates to a fixed point on the other end of said link means for translating the rotational movement of said operating gear wheel into a linear movement of said one of said locking bolts for the extension and retraction thereof responsive to the rotation of said operating gear wheel.