Audibly locking shoe system for take-out window

Details Audibly locking shoe system for take-out window Audibly locking shoe system for take-out window

1988-09-26

1989-12-12

Kannan, Philip C.

Movable or removable closures

Mounted for optional movements

Pivot mounted on sliding member; e.g., slide-stile

49446, 49453, E05D 1522

Patent

active

048858714

ABSTRACT:
A lock shoe system for a take-out window having take-out jamb liners (10) uses a pair of fins (22) extending laterally outward from opposite sides (18) of a sash pin slot (16) in the jamb liner for supporting lock shoes (30) that move vertically in lock shoe channels (13 and 14) within the jamb liners. The lock shoes have pivotally mounted ramp latches (60) that extend over locking devices and are inclined toward recesses (82) for receiving sash pins (25). When a sash (20) is returned to an operating position between jamb liners (10), its sash pins (250 are moved downward over ramp latches (60), pivoting these aside and releasing the lock mechanism, which snaps the pins into the receiving recesses. This produces an audible sound as each pin is latched in its respective shoe (30) so that the user can tell from the sounds made when the latching occurs that sash (20) is properly latched into each shoe, where its weight is counterbalanced.

REFERENCES:
patent: 2688509 (1954-09-01), Schonitzer
patent: 2796630 (1957-06-01), Haas
patent: 2987758 (1961-06-01), Osten, Sr.
patent: 3197819 (1965-08-01), Trout
patent: 3233278 (1966-02-01), Lundgren
patent: 3464157 (1969-09-01), Rodriguez
patent: 4799333 (1989-01-01), Westfall et al.

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