E - Fixed Constructions – 05 – D
Patent
E - Fixed Constructions
05
D
268/44
E05D 15/28 (2006.01) E05F 11/24 (2006.01)
Patent
CA 1139325
ABSTRACT OF THE DISCLOSURE An operator for a casement-type window sash which is mounted adjacent one edge thereof on slider structure for combined pivoting and linear movement com- prising, a first structure for causing said combined pivoting and linear movement including a first linkage having an operating arm and a connecting link which is pivotally connected to the operating arm intermediate the ends thereof and also pivotally connected to said sash and a constraining link pivotally connected to a window sill and to the sash at a distance from said edge. A member mounted at an end of the operating arm at a distance from said pivotal connection to the con- necting link and movable in an arc as the operating arm moves between window open and closed positions and a channel member mounted on the sash to extend lengthwise thereof and at a location to confine and be engaged by said member when the sash is either closed or partially open or at any position therebetween function to assist in closing and opening of the sash and holding the sash in a partially open position.
350031
Nelson Eric W.
Peterson Jeffory A.
Meredith & Finlayson
Truth Incorporated
LandOfFree
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