Patent GB-189913671-A (GB)
Title: Improvements in or relating to Motor Vehicles.
Filed: 1899-07-01
Granted: 1900-04-14
Abstract: 13,671. British Motor Co. and Jarrott, C. July 1. Motor road vehicles.- Relates to motor vehicles, to bicycles, tricycles, and the like, propelled wholly by gas engines, and especially to the speed gear, starting, braking, and steering, mechanisms, to the engine carburetter, and to the induction coil in the electric ignition device. The motor is arranged at the rear of the vehicle, and secured to two transverse members of the frame, the shaft entering the casing containing the change speed mechanism shown in Figs. 3 and 4. The shaft E' of the two-speed gear is provided on one side of the casing E with the reversing-mechanism, and on the other side with the brake mechanism, while the starting-device may be mounted upon the motor shaft D'. The pinions E<4> , E<5> are mounted free upon the hollow shaft E', and the rings or drums E<6>, E<13>, within which are arranged the friction clutch expansion devices, comprising two friction blocks carried by the shaft E<1> and connected together by screw spindles E<8>, are secured to the pinions. A toothed operating-rod within the hollow shaft E<1> engages with the pinions E<10> of the screw spindles of both devices, but the operation is such that, when the spindles of both are revolved in the same direction, those of one device draw the friction blocks together, while those of the other separate them. Both friction clutches may be disengaged by placing the operating-rod centrally, so allowing the motor to run idle. Spider pieces on the hollow shaft E' carry the friction blocks with their spindles and pinions. The operating-rod is controlled from a wheel on a vertical shaft. The starting-device, Fig. 6, comprises the flanged disc H<1> fast to the shaft D<2>, and with pockets H<2> forming bearings to receive pawls, the sprocket-wheel H<4>, and extension H<5> with ratchet teeth for engagement with the pawls. The motor shaft D<2> may be revolved by hand or foot gearing. In the reversing-mechanism, Fig. 8, between the fixed, bevel-wheel F<1> and the free wheel F' is mounted the boss F<3>, which is free and carries the pins F<4> and their pinions F<5>. Two lugs or detents on the brake ring F<6> project between and engage the teeth of the pinions F<4>, and are kept in engagement by springs, except when the brake strap is applied. Reversing is brought about by braking on the ring F<6> with the strap F<7>, and the strap may be controlled from a foot-pedal. The motor or vehicle brake may be so arranged that, by tightening the brake band upon its drum, the band is partially rotated and brings the brake shoe forward against its disc or drum, so that, by one operating-device, both brakes are applied. To protect the driving-shaft or axle e<2>, Fig. 12, the fixed tube e<3> bears the road wheel. The engaging-piece e<6> has teeth e<7> which engage with similar teeth on the wheel hub e<5>. The carburetter, Fig. 13, consists of the nozzle J surrounded by the tubular baffle J', which is fixed to the revolvable liner J<4>, and the casing J<5> provided with the air inlet J<6> and the air and oil exit J<7>. The flow of air to the carburetter and of mixture to the engine cylinder is regulated by the position of the liner J<4>. The magnetic core of the induction coil for the ignition of the charge, instead of being straight, is provided with arms or projections which may be at right-angles to the central piece, or bent round to approach the coils ; or the core may form two loops with the centre piece severed and splayed, and the coil between. There may be four arms or members, and these may be connected by an iron ring. The steering-mechanism is prevented from damage by the device shown in Fig. 20. The bifurcated member L<5> is secured to one part of the mechanism by a hinge joint L<6>, and to the other part by a universal joint L<8> with or without the second member L<7>. The arrangement allows the wheel axle, together with the operating-rod L', to rise and fall relatively to the vehicle frame which carries the operating-mechanism.