摘要:
A lock for meter boxes and similar enclosures includes an outer case with a central bore mounted on an electric meter box. Inside the bore are two extrusions of unequal length spaced 90 degrees apart. A sleeve having a deep bore is held in the case by a screw, and a spring assembly transmits motion from the screw to the sleeve. The sleeve includes a flange at its end with an arcuate cutout portion which spans both extrusions. The sleeve further includes several internal grooves for retaining a barrel type lock which prevents access to the screw. A heavy cover plate is welded to the top of the sleeve so that it overlays and retains the door of the meter box. To unlock the meter box lock, the barrel lock is removed to allow access to the screw. As the screw is unscrewed, the sleeve moves with the screw until the flange on the sleeve clears the shorter extrusion. The sleeve then rotates with the screw until the flange engages the longer extrusion. In this position, the cover plate no longer overlays the door, and the door can be opened.
摘要:
Force-resistant locking devices for electric meter boxes with hinged cove or the like, comprise a stud member mounted to a wall of the box and a flange member received on the stud member, the flange member including a flange overlying a marginal portion of the cover to keep it closed. The flange and stud members together define an opening receiving and fully enclosing a utility lock for securing the flange and stud members together. In one embodiment, the flange member is an angle iron with rectangular metal stock welded to one leg, and the stud is cylindrical and received in an opening through the flange member. The lock-receiving opening intersects the stud-receiving opening and the shear strength of the utility lock holds the locking device together. In another embodiment, the flange member is a section of channel iron and receives a rectangular stud, the lock-receiving opening deployed to utilize the shear strength of the lock. In a further embodiment, the flange member includes a polygonal post engagingly received in the stud member, and the lock-receiving opening is axially aligned with the post.
摘要:
A lock assembly having a lock housing which is secured to a first member such as a lid or door of a locker or other container. The lock housing includes a bar lock accessible at a first end portion, a second end portion, a continuous top portion and a continuous first side portion. The bottom portion is provided with an opening into which a strike may be introduced for engagement by the bar lock and the lock housing covers and conceals the strike. The strike is adjustably and releasably secured to the locker so that the mutual positional relation between the strike and the lock housing may be altered.
摘要:
Locking cabinet assembly comprising generally U-shaped base and cover sections disposed in opposite attitudes. Interlocking flange means is provided for securing one end of the cover section to the base section, and releasable locking means is provided for locking the other end of the cover section to the base section.
摘要:
A cover means for the navigational instruments and radio equipment of an aircraft that are mounted on and arranged for removal from the aft face of the instrument panel of such aircraft which cover means includes a cover provided with lock means that are arranged to coact with cooperating lock devices mounted on such aircraft instrument panel or other permanent structure of the aircraft so as to prevent removal of such cover from said panel and consequently access to the instruments and equipment mounted thereon and thereby preclude their unauthorized removal or theft.