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THE PETROL CAR
199
The large majority of cars to-day, especially those of the heavier and more expensive class—such as Daimlers, Napiers, Panhards, &c.—are fitted with wheel-gearing and chain transmission, and in these, although the constructional details may vary with different makers, the principles and general system are the
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Fig. 15.—Duryea Transmission Gear
same. In the illustrations figs. 16 and 17 I have taken the transmission system of the 12 h.-p. Daimler to illustrate the type. This arrangement gives three speeds and a reverse. Others are more frequently arranged to give four speeds, but the system is the same. Fig. 16 shows the arrangement looking down from the top and fig. 17 is a sectional drawing of the gear