Door security bolt assembly

Claim 2

A door security bolt assembly comprising a main mounting bar adapted to be secured to one side of a door by bolt means which may extend through the door, bolt guide sleeves rigidly secured to end portions of said bar in axial alignment, sliding bolts within said sleeves, a crank plate pivoted to said bar between said bolts and sleeves, operating links pivotally interconnecting the bolts with the crank plate so that turning of the crank plate on its pivot will cause extension or retraction of the bolts, a handle having a connection with the crank plate and being spaced from the crank plate and said bar and adapted when parallel to the bar to lie over and protect the crank plate, links and the interior ends of the bolts where they connect with the links, the handle being apertured near its opposite ends, and a pair of locking brackets rigid with the bar and positioned near the inner ends of the sleeves and receiving the opposite end portions of the handle when the handle is parallel to the bar, the brackets having apertures which register with the apertures of the handle so that a locking device may be passed through said registering apertures to secure the handle in a locked position, the bolts being then extended from the opposite ends of the assembly.

Claim 3

The structure as defined in claim 1, and said locking brackets each comprising a generally L-shaped member connected with one opposite edge of the main mounting bar, whereby the brackets face in opposite directions from said edges to receive the ends of the handle and to serve as positive stops for the handle in a locking position.

Claim 4

The structure as defined in claim 1, and a pair of pillow blocks between each guide sleeve and the main mounting bar and serving to space the guide sleeves and the bolts from the main mounting bar.

Claim 5

The structure as defined in claim 1, and a pair of apertured escutcheon plates adapted to receive said bolts and being mountable upon the opposite faces of the door jamb or frame.

Claim 6

A door security bolt assembly comprising an elongated main mounting bar adapted to be bolted to a door and adapted to extend horizontally substantially across the door between opposing jambs which have bolt-receiving opening means, A pair of bolt guides on said mounting bar near the ends thereof, a pair of sliding bolts in said guides aligned with the opening means of the jambs when the door is closed, a linkage connected with the bolts to extend and retract the same including a member pivoted to said bar near its center, a handle secured to said member and being elongated and extending substantially on opposite sides of the pivot of the member and lying over and protecting said linkage when the handle is extending longitudinally of the mounting bar, the linkage then lying between the mounting bar and the handle, and a pair of handle-locking brackets on the mounting bar in spaced relation and receiving the opposite ends of the handle when the handle is longitudinally of the mounting bar and said bolts are extended into the opening means of the jambs, said handle and locking brackets provided with openings which register when said bolts are extended so that padlocks may secure the ends of the handle to said brackets with the handle protecting said linkage.

Claim 7

A door security bolt assembly comprising an elongated main mounting bar adapted to be bolted to a door and adapted to extend horizontally substantially across the door between opposing jambs which have bolt-receiving opening means, A pair of bolt guides on said mounting bar near the ends thereof, a pair of sliding bolts in said guides aligned with the opening means of the jambs when the door is closed, a linkage connected with the bolts to extend and retract the same including a member pivoted to said bar near its center, a handle secured to said member and being elongated and extending substantially on opposite sides of the pivot of the member and lying over and protecting said linkage when the handle is extending longitudinally of the mounting bar, the linkage then lying between the mounting bar and the handle, and a pair of handle-locking brackets on the mounting bar in spaced relation and receiving the opposite ends of the handle when the handle is longitudinally of the mounting bar and said bolts are extended into the opening means of the jambs, said handle and locking brackets provided with openings which register when said bolts are extended so that padlocks may secure the ends of the handle to said brackets with the handle protecting said linkage.

Claim 8

The structure of claim 5, and said linkage further comprising a pair of bolt-operating links pivotally interconnecting said pivoted member and the inner ends of the bolts inwardly of said guides.

Claim 9

The structure of claim 6, and a strut rigidly interconnecting the pivoted member with said handle near the longitudinal center of the handle and spacing the handle from said mounting bar, links and guides.

Claim 10

The structure of claim 7, and said brackets comprising opposing L-shaped members welded to opposite edges of the mounting bar and each having an abutment web to engage one edge of the handle and a right angular web to lie immediately outwardly of the handle when the bolts are extended and the handle is longitudinally of the mounting bar.