Patent GB-278464-A (GB)
Title: Improvements in lamp control for vehicles
IPC: B60Q1/124
Filed: 1926-07-20
Abstract: 278,464. Tritton, J. S. July 20, 1926. Vehicle lamps, directing.-In means for directing vehicle lamps from the steering gear, one lamp is provided with a, lateral arm engaging directly with an adjacent member, adapted to reciprocate in ,unison with the steering movements, and the other lamp has a connecting rod, which transmits motion from the member to that lamp, the connections being so disposed that one lamp is rotated against spring resistance in one direction of steering and the other lamp in the opposite direction of steering. In one form, the lamp stems 3 are rotatable in supports 5 clipped to the ends of a transverse shaft 7. A slotted arm 26, mounted rotatably on one of the stems 3, engages a pin 23 on a bolt 16, which is slidable in a guide 17 and is connected by a pivoted rod 20 with a slotted arm 18 connected to the pivot 21 of the steering-arm 19. The arm 26, when rotated by the bolt 16 in one direction, engages a lug 27 on a collar 27<a> fixed on the adjacent lamp stem and thereby rotates that lamp, and, when rotated in the opposite direction, engages a lug 28 on a rotatable collar 29, which transmits the movement through arms 31, 33 and a connecting rod 32 to the other lamp, the arrangement being such that the outer lamp on a curve is turned inwards. The inner lamp is held in the normal position by a stop 34 or 35 under the action of a spring 36 connecting the lugs 27, 28. The sense of rotation of each lamp may be reversed so that the inner lamp on a curve is swivelled by locating the bolt 16 on the opposite side of the lamp stem or by connecting the rod 20 directly to the steering-arm 19. The bolt 16 may be fixed to form a guide for a slidable member 17 carrying the pin 23. The pivot 47 of the :rod 20 may be brought into line with the pivot 21 to render the swivelling mechanism inoperative, the pivot being preferably connected by a cord 49 and pulley 48 with an operating handle 46 and held normally by a pawl 50 against an adjustable stop 51. A spring or weight may be provided to ensure the lowering of the pivot 47. The shaft 7 is journaled in brackets 9 and carries a forked lever engaging a stud 12 mounted eccentrically on a disc 13 adapted to be rotated, as by means of Bowden wires 14 controlled by a hand lever 15, for tilting the lamps. In the normal position, the pivot of the upper end of the rod 20 is in line with the axis of the shaft 7 so that the tilting movement does not affect the steering control. In a second form, the pin 23, Fig. 4, engages an arm 37 on the adjacent lamp stem in one direction of steering and an arm 39 connected by arms 42, 44 and a connecting rod 43 with the opposite lamp in the the other direction of steering, the arms 37, 39 being held normally by a spring 45 against a stop 38. The Provisional Specification describes also a construction in which the lamps are mounted on turntables carried by platforms hinged to fixed brackets, a connection between the hinge-pins being provided with a lever for tilting the lamps. The turntables have projecting pins, which are held normally by springs against stops. Around the 'lamp supports are mounted rotatable control rings, having a lost motion connection with the pins and adapted to be rotated with the steering- arm, additional arms, connected by a rod, being provided on the rings so that the lamps are rotated one at a time.