504 REPORT—1905. 
Ignition.—Various forms considered—High-tension magneto with alternate 
ordinary accumulator and coil system best suited for South Africa. 
Carburettor.—Frequent unsatisfactory working and difficulty of constructing 
a thoroughly satisfactory automatic one—Need of positive adjustment from dash- 
board, 
Lubrication.—Automatic pressure the most suitable form. 
Governor,—The general form of—Little need of, if positively worked throttle 
fitted. 
Clutch.—-The various forms—The necessity of one constructed to allow slipping 
without injury to working parts—The internal expanding metal to metal very 
suitable—The Hele-Shaw clutch most suitable for South Africa. 
Speed Gear.—Various forms of—Reliability of wheel gear, making it the most 
suitable for South Africa, 
Transmission Gear.—Different forms of—Desirability of enclosing chains— 
Cardan shaft with bevel gear and live axle the ideal form for this country. 
Frame.—Extraordinary reliability of standard makes—Different methods of 
attachment engine and gear—Advantages of three-point suspension. 
Springs.—Need of fitting more efficient—Advantages of lengthened wheel 
base—Three point suspension applied to the springing of a car. 
Brakes.—Difterent forms—Best form metal to metal expanding ring. 
Steering.— Wheel or tiller, the former best suited to South Africa. 
Wheels. Advantages of equal size—Best form Artillery type. 
Parts, motor-cars, most liable to failure—Instances of such failures. 
Finally, what may be considered an ideal car for South Africa. 
= SSS = 
FRIDAY, AUGUST 18, 
The following Paper was read :— 
Cape Government Railways. By A. M. Tipper, Assoc.M.Inst.0.£ 
JOHANNESBURG. 
TUESDAY, AUGUST 29. 
The President delivered his Address (see p. 490), after which the following 
Papers were read :— 
1. Wireless Telegraphy. By Sir W. H. Preece, X.C.B., PRS. 
2. The Strength of Winding Ropes in Mines. 
By Professor Jonn Purry, /.2.S. 
WEDNESDAY, AUGUST 30. 
The following Papers were read :— 
1. Electric-power Distribution in the Rand. 
By Rosert Hammonp, MW. Inst.C.£. 
The object of this paper was to raise two questions: first, whether the working 
of the mines could not be cheapened by the greatly extended application of electric 
power ; and secondly, whether such electric power could be more economically 
1 Published in the Llectrician. 
