Improvements in or relating to window construction
Реферат: 661,265. Windows. GENERAL BRONZE CORPORATION. Jan. 30, 1947 [Feb. 14, 1946], No. 2878/47. Class 20(iii) In a metal window construction wherein a vertically sliding sash is provided with spring counterbalancing devices, the sash is retained frictionally in any position of adjustment by a member 111 which presses against a wall of the jamb 25. As shown, the invention is applied to the lower of a pair of sashes, the member 111 being riveted at 110 to an upwardly bent part 109 of a plate 107 which is pivoted at 108 to the upper rail of the sash. The pressure of the member 111 on the wall of the jamb is adjustable by a screw 115 which passes freely through a hole in the vertical face of the sash and is threaded into a lip 113 extending downwardly from the plate 107 through an opening 114 in the top of the rail. The member 111 is provided with a self-lubricating metal cover 112 which bears against the wall of the jamb, the opposite wall of the jamb accommodating a wire insert 91 of self-lubricating metal. The bottom rail of an upper sash may similarly be fitted with a frictional retaining means, the plate 107 being pivoted to the underside of the rail and being provided with a hooked end which anchors one end of a coiled counter-balance spring. The Specification as open to inspection under Sect. 91, includes also the subjectmatter of Specifications 661,317, 661,326, 661,327, 661,343 and 661,344. This subjectmatter does not appear in the Specification as accepted.
Improvements in or relating to windows
Номер патента: GB375440A. Автор: . Владелец: Individual. Дата публикации: 1932-06-30.