Twelve Cylinders or Six in One ^kCar 



A mere twist of 

 the wrist makes 

 the change 



The transformation from a twelve to a six-cylinder automobile is accomplished simply by turning 

 a lever carried under the steering-wheel. This cuts out the left-hand block of six cylinders 



THK latest thing in automobiles is a 

 car with a t\vc'lve-c\lintler motor 

 which can he changed to a six by 

 the mere twist of the wrist. While it gives 

 great power for c|uick acceleration and for 

 hill climbing and flexible control on high 

 gear, the twelve-cylinder motor is ne\erthe- 

 Icss a large consumer of gasoline and there- 

 fore expensive to operate. While the power 

 of the twelve is ad\'antageous under some 

 conditions, the bulk of the driving of the 

 ordinary car is done under conditions that 

 could be ec|ually as well done with a six as 

 with a twel\e-c\'linder motor, and at a lesser 

 consum|)tion of gasoline. To meet these 

 conditions, a Cincinnati automobile manu- 

 facturer has brought out a lwelve-c\'linder 

 car which can be changed to a six at will, 

 simply by turning a le\er carried under the 

 steering-wheel. 



This transformation is si-iured by cutting 

 f)Ut the left-iiand block of six c\linders. 

 The cut-out is in turn accomplished b\- 

 means of a camshaft placed over the 

 exhaust-valve rocker-arms. At the rear 

 end of this shaft is a ball-and-socket joint 

 connecting it with a sli.'.ft attached to the 

 steering column ami carrying .it its iip|)er 

 end the o()eratf)r's le\-er. The movement 

 of this lever ri-vol\-es the camshaft and 

 prt'sses the c.inis down upon the rocker- 

 amis of the exhaust -valves and holds the 

 valves open, s<> that there is no i (>mpres>iiin 



H (y I^TAKt 



With the tiinuMK of llu U\ci .1 l,.lU;!':y 

 vnlvc in the left intnkc mnnifold is closed so 

 that nn pas reaches the cut out cylinders 



H7i 



