locking terminal for full tilt double-hung windows

Movable or removable closures – Mounted for optional movements – Pivot mounted on sliding member; e.g. – slide-stile

Patent

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Details

49176, E05D 1522

Patent

active

055422128

ABSTRACT:
An improved locking terminal is provided for a full tilt, double-hung or single-hung window. The conventional full tilt, double-hung or single-hung window comprises a window frame having a pair of vertical jambs, each of which have a jambliner mounted therein. Each of the jambliners are provided with a pair of horizontally spaced and vertically disposed channel members which are open toward the sash sides of the window. A mechanical balance is mounted in each of the four channels and has a locking terminal associated therewith which is adapted to grip the walls of the channel to maintain the locking terminal in place in its respective channel when the sash is tilted inwardly for removal from the window frame. Each locking terminal includes a channel-shaped slide member with a back projecting from a lower end thereof and an arm projecting upwardly from the back, generally parallel to the slide member. A locking member is pivotally mounted on the back of the locking terminal for movement between an engaged position engaging a side wall of a jambliner channel, and a sliding position. The cam pivots extending from the sashes include a locking lug which is received between the walls of the channel-shaped slide member when the sash is tilted to its vertical position thereby preventing separation of the cam pivot from its locking terminal during shipment or wind loading.

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patent: 5189838 (1993-03-01), Westfall
J W Window Components, Inc. Brochure entitled "Sash Balances and Full Tilt Vinyl Jambliner For Wood Windows Designed For 13/8" or 13/4" Sash".

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