GB432829A - Improvements in and relating to motor road vehicles - Google Patents

Abstract

432,829. Three-wheeled motor vehicles. BRIGHTMAN, S. T., 29, St. John's Street, Bedford. May 30, 1934, No. 16154. [Classes 79 (iii), 79 (iv), and 79 (v)] In a motor tri - car having two front steering wheels 2 and a single rear driving wheel 3, the drive is transmitted through a propeller shaft 40 and worm 49 to a wormwheel 48 on a sleeve 47 surrounding a fixed axle 42, Fig. 9, the wheel 3 and, preferably also the brake drum 53, being attached to a flange or disc 51 on the sleeve. The shaft 40 is connected through a gearbox 16<a> to an engine 12 located at the side of the driver's seat behind the dash 7. The engine preferably drives the dynamo and magneto through spur gearing 69, 70<a>, and is enclosed by a cover 29 hinged to frame supports 30. The seat may be carried on supports 39<a>. The dash 7 carries fuel, water and lubricant tanks 19, 20, 21. An air scoop 65 may convey cooling air to the engine and to passages passing through the water tank 20. Fig. 1 shows the invention applied to a commercial type of vehicle with a box carrier 4. In a modification, the box carrier is replaced by a dummy radiator and bonnet with seating accommodation for one or two passengers forward of the dash. The steering column 22, Fig. 3, terminates in a bevel pinion 23 engaging a quadrant 24 on a forwardly extending shaft 25 mounted in bearing brackets 26, 26<a> and connected by lever arms 27 to threaded sleeves on the ends of separate track rods 28 imparting equal movements to the wheels 2. The rear axle is carried by brackets 35<a>, Fig. 7, attached to frame extension members 34 connected to the main frame longitudinals 1 by pivots 35 and leaf springs 36 clamped between the flanges of the members 1 by blocks 39 and bolts 37, the rear mudguard 33, Fig. 1, being connected thereto by stays 34a so as to maintain a constant distance from the wheel 3. The rear axle, Fig. 9, is in two parts 42, 45, with a screw threaded connection 44, the ends being clamped in the brackets 35<a> by nuts 43<a>, 46. The sleeve 47 is mounted in ball bearings in a casing comprising castings 43, 61, 62 assembled by bolts 61<a>, the part 43 being secured to the bracket 35<a> and the part 62 carrying the brake cams 55 and operating linkage 56.