Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Sash balances – Spring
Patent
1983-06-20
1985-01-15
Silverberg, Fred Andrew
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Sash balances
Spring
16193, 49417, 49421, E05D 1308, E05D 1700
Patent
active
044931280
ABSTRACT:
A positioner for a movable window sash embodies a guide bracket carried by the sash with one side of the guide bracket spaced from and facing an adjacent side of a window frame and extending in a plane which is inclined relative to a plane extending in the direction of movement of the sash with the opposite side of the guide bracket being parallel to said one side thereof. A wedge-like member has a first surface in sliding engagement with said one side of the guide bracket. A second surface of the wedge-like member extends parallel to and faces the adjacent side of a window frame and is movable into and out of engagement with the window frame in response to sliding movement of the wedge-like member in opposite directions. An actuator mounted for sliding movement along said opposite side of the guide bracket is operatively connected to the wedge-like member to move it in opposite directions. A resilient member urges the wedge-like member into engagement with the adjacent side of the window frame.
REFERENCES:
patent: 2143266 (1939-01-01), Grondahl
patent: 2543785 (1951-03-01), Lermont
patent: 3280511 (1966-10-01), Johnson
patent: 3501867 (1970-03-01), Scott
Mason Corporation
Silverberg Fred Andrew
Thompson Jr. Woodford R.
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