Patent GB-519163-A (GB)
Title: Improvements in or relating to window operating devices for vehicles more particularly for motor cars
IPC: B60J1/14
Filed: 1938-07-08
Abstract: 519,163. Vehicle windows. HESS, E. July 8, 1938, No. 20326. [Class 20 (iii)] Consists of means for operating by a single handle vehicle windows of the kind comprising two panels A, B both of which may be raised and lowered, and the panel A being capable also of outward pivoting about a front hinge 21, Fig. 11. The means permit of the rotary movement of the panel A to positions which ventilate the vehicle interior either by extraction of air, without regard to the position of the rear panel B, or by scooped inlet of air when the front panel is partially lowered. The panel B is operated in known manner by crank-mechanism 5, 6, Fig. 9. The crank 6 is two-armed and the arms extend on either side of a rotary disc 2, Fig. 10. Pins 7 on the arms engage in spiral grooves 3 in the faces of the disc. In the fully raised position of the panel B, the pins 7 run on .circular tracks 11 at the edge of the disc 2. A spring-loaded switch-member 8, common to both tracks, is provided to ensure that continued rotation of the disc in an anti-clockwise direction will not result in the pins 7 entering the grooves 3. The front panel A is operated outwardly by a crank 13a coupled to the main operating shaft 1 by a clutch 15. which latter is controlled by the crank 6 and is engaged only when the pins 7 are on the peripheral tracks 11 of the disc 2. The panel is rotated by a worm and worm-wheel 23 driven by a horizontally - sliding rack 26 actuated by a lever 29 connected by a link 31 with the crank 13a. The front panel structure is supported in uppermost position by a spring- loaded bell-crank 35, 35a, the upper end of the arm 35 engaging with the lower end of a downwardlyextending hooked member 27b mounted on the slidable spindle 26a of the rack 26. The frame b of the .rear panel B is formed with a projecting portion 37 provided with a lateral projection 41 which, in the raised position of both panels and closed position of the front panel, is engaged with the hooked member 27b, so as to lower the front and rear panels simultaneously. If the front panel should be open, the hook is disengaged from the projection 41, and is engaged with the arm 35 of a lever 35, 35a pivoted on a fixed part of the window housing. Upon rotating the control handle C in an anti-clockwise direction, the two panels being initially fully raised, the pins 7 will run idly on. the tracks 11 of the disc 2, and the front panel will' be rotated outwardly by the rotation of the crank 13a through the clutch 15. This will also disengage the hook 27b from'the projection 41. Upon reversing the rotation of the handle C, the clutch 15 will be disengaged to prevent further actuation of the front panel, the pins 7 of the crank 6 will enter the spiral grooves 3 of the disc 2, and the panel B will thereby be lowered by itself. When panel B is about three-fourths lowered, a pin 36 on the frame b will strike the arm 35a of the crank 35, 35a, and continued lowering of the panel will withdraw the arm 35 from the member 27b and the panel A will be partially lowered by pressure of the arm 37 on the lower bar 38 of the front panel structure. During this limited downward movement of panel A, a pin 39 on the rack spindle 26a will engage fixed inclined guides 40, 40a and the rack 26 will be moved further to the left, thereby causing the panel A to be deflected into the forwardly directed position shown in Fig. 5. The mechanism permits six different relative positions of the two panels to be obtained.