Patent GB-385206-A (GB)
Title: Improvements in automobile head lamps
IPC: B60Q1/124
Filed: 1932-05-25
Abstract: 385,206. Vehicle lamps. GILLIES, J. H., Shadforth Street, Mosman, New South Wales, Australia. May 25, 1932, No. 14827. [Class 75 (ii).] Adjusting reflectors from a distance.-A vehicle lamp reflector comprises a rear portion which is pivotally suspended from a fixed front portion at a single point, and is provided with means whereby it may be dipped and swivelled by the steering gear. The pivot is arranged vertically above the focus of the reflector and the plane of separation of the two portions is perpendicular to the axis of the reflector and may pass in front of, through, or behind the focus according to the amount of light to be constantly directed ahead by the fixed portion. In the form shown in Figs. 1 and 2, the rear portion 11 is suspended by a pivot pin 13 the head of which nests in a ballsocket formed in a ring 12 extending rearwardly from the front portion 10. A pin 20 projects downwardly from the bottom of a strengthening flange 14 on the portion 11, engages in a pear-shaped slot 21 in the ring 12, and is connected to a wire 22 which is operated by hand from the dashboard to dip the portion 11 independently of its movement by the steering gear. Spaced springs 23 are connected at one end to a pin 24 on the pin 20 and at the other end to the bottom of portion 10, whilst two guide-rods 25 fitted with adjusting nuts 27 pass through an upstanding lug 26 on the ring 12 and are pivoted to the 'flange 14. An electric lamp-holder 16 is adjustably mounted in a socket 15 on the portion 11 by means of a strap 18 which carries a tongue 19 to which are attached a wire or cord 29 and a spring 31 which pass over pulley blocks 28 pivotally mounted on the ring 12. The other end of the spring 31 is attached to the ring 12 whilst the cord 29 is adjustably connected with a stiff pull-and-push wire 30. The wires 30 of a pair of lamps are connected to a bar 34, Fig. 6, which is slidable horizontally on a board 33 secured to the dashboard. The bar 34 is supported on rollers 35 carried by U- shaped guides 36 which are vertically adjustable by means of nuts 37, the bar 34 being held down by rollers 38 carried by U-shaped guides 39 connected to adjustable springs 40, stops 41 limiting the inward travel of the guides 39. A notch 42 in the bar 34 is engaged by a roller 43 on a forked arm 44 which is bolted to the spindle of a gear wheel 45 in mesh with a gear wheel 46, the latter being operated, through a rod and universal joint connection, by a rod 49, Fig. 5, on the steering column casing 51. The rod 49 carries a gear wheel 52 in mesh with a gear wheel 53 loosely mounted on the casing 51. A collar 57 secured to the steering column carries a slidable bolt adapted to engage in an apertured lug 56 on a ring 55 secured to the gear wheel 53, whereby the steering column is connected to the portions 11 of the reflectors, swivelling of these portions causing simultaneous dipping by means of the guide-rods 25 and the pearshaped slots 21. The amount of swivelling is controlled by adjusting the nuts 37 to vary the length of the notch 42 that is engaged by the roller 43, and the portions 11 are provided with stops to engage the rings 12 and thereby limit their inward movement.