Abstract For adjustably locking relatively-sliding double closures, such as double-hung sliding sash windows, inserted between the adjacent frame and one of the sashes, this adjustable locking device includes a pair of interconnected first and second elongated bars, the first of which is T-shaped in cross-section and slidably movable in the channel-shaped second bar. One end of the first bar carries a pivoted screw upon which is threaded an adjusting collar, whereas its upper end carries a slidably mounted spring-pressed locking pin selectively engageable with one of a series of locking holes in the second bar. This pin is moved into and out of its selected locking hole by a thumb lever mounted on the first bar and having a pivotal connection therewith. A transverse attachment plate is secured to the upper edge of the upper bar for engagement with the upper channel of the window frame.
An adjustable locking device for a closure slideable in a stationary closure frame, said locking device comprising: (a) an elongate stationary bar, (b) securing means at one end of said stationary bar to secure said bar to a stationary closure frame, (c) an elongate relatively movable bar disposed in longitudinal sliding relation to said stationary bar, (d) means for guiding said bars in longitudinal reciprocation relative to one another, (e) a locking element movably mounted on said movable bar for motion into and out of locking engagement with said stationary bar, (f) a longitudinally spaced locking-element-receiving means on said stationary bar for selective reception of said locking element, and (g) means on said movable bar to abut a slideable closure to limit the movement of said closure relative to a stationary closure frame, said last means comprising a fine adjustment means movably connected to the opposite end of said movable bar remote from said securing means.
Claim 2
Dependent Claim
156 words
An adjustable locking device for a closure slideable in a stationary closure frame, said locking device comprising: (a) an elongate stationary bar, (b) securing means at one end of said stationary bar to secure said bar to a stationary closure frame, (c) an elongate relatively movable bar disposed in longitudinal sliding relation to said stationary bar, (d) means for guiding said bars in longitudinal reciprocation relative to one another, (e) a locking element movably mounted on said movable bar for motion into and out of locking engagement with said stationary bar, (f) a longitudinally spaced locking-element-receiving means on said stationary bar for selective reception of said locking element, and (g) means on said movable bar to abut a slideable closure to limit the movement of said closure relative to a stationary closure frame, said last means comprising a fine adjustment means movably connected to the opposite end of said movable bar remote from said securing means.
Claim 3
Dependent Claim
56 words
An adjustable locking device as defined in claim 1 wherein said fine adjustment means includes a screw attached to the end of said movable bar remote from said locking element, and also includes a complementarily-threaded contact element threadingly engaging said screw and movable relative thereto into and out of an abutting engagement with a slideable closure.