| 摘要 |
384,491. Window regulators. ROETHEL, J. H., 1209, Meadowbrook Avenue, Detroit, Michigan, U.S.A. Feb. 27, 1932, No. 5926. Convention date, March 21, 1931. [Class 20 (iii).] A window regulator comprises a member 15a movable on parallelmotion links 12, 14 and having adjustably secured thereto a member 18 with two rollers engaging the bottom channel of the sash. One of the links 12 is actuated by a handle and reduction gearing, a counterbalancing spring 44 being connected to the lever pivot. The member 18 is adjusted by a slot and set-screw connection with the member 15a and the rollers thereon engage a recessed guide formed between the sash 29 and an attached member 30, springs 25 and conical washers 24 being mounted on the roller pivots. The bottom guide has openings formed therein for the simultaneous insertion of the supporting rollers.
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