Turning a Car in Its Own Length 



It is a mere matter of lifting it and 

 swinging it around on its rear wheels 



THE parking problem would be par- 

 tially solved by the adoption of the 

 device illustrated, which enables a car 

 to turn around in its own length. 



It consists of a small wheel carried cross- 

 wise of the car between the front of the 

 motor and the 



radiator. This 

 wheel is mounted 

 on two pistons 

 which may be 

 forced down in 

 vertical cylinders 

 by means of a 

 fluid under pres- 

 sure from the en- 

 gine cylinders 

 until it contacts 

 with the ground. 

 A further down- 

 ward movement 

 of the pistons 

 raises the front 

 wheels of the car clear 

 off the ground. 



The operation of lift- 

 ing and turning a car is 

 controlled from a lever 

 mounted in a small case 

 in the driver's cab. One 

 double-ended pipe is 

 screwed into the combus- 

 tion chambers of two of 

 the engine cylinders and 

 then led to a double piston 

 valve in the control case. 

 This piping serves to carry 

 a small amount of the 

 compressed cylinder gases to the piston- 

 valve, by the manipulation of which the oil 

 in the two vertical cylinders carrying the 

 small lifting wheel on their piston rods is 

 put under pressure. Check valves are 

 placed in the line outside of each cylinder so 

 that the oil cannot back up into the engine 

 on the suction strokes. 



The control cylinder in which the double 

 piston valve reciprocates is normally open 

 to the atmosphere so that the gas under 

 pressure from the cylinders may escape 

 when the device is not in operation. A 

 backward movement of the control lever 

 ghuts off the opening to the atmosphere and 



permits the gas to force the oil in the system 

 through a pipe leading to the tops of the 

 two vertical cylinders carrying the lifting 

 wheel. A further movement of the lever to 

 the right or left opens two valves into two 

 additional pipes leading to the bottoms of 

 the cylinders. 



The small wheel carried crosswise of the car between 

 the front of the motor and the radiator is mounted on 

 two pistons by which the front wheels are raised 



With the rear wheels as an axis, the 

 car can be turned completely around 

 in a space equal to its own length 



When the pistons 

 have moved 

 down to their 

 extreme bottom 

 positions and the 

 front wheels of 

 the car are lifted 

 clear, the ends of 

 the pipes leading 

 to the bottom of 

 left or right 

 cylinder, accord- 

 ing to the way 

 the lever is 

 moved, come op- 

 posite ports in 

 the hollow piston rods 

 and permit the oil to 

 flow down into the 

 pump on the wheel and 

 turn it one way or the 

 other through gearing. 

 The fluid under pressure 

 escapes down the hollow 

 piston rods to the gear 

 pump integral with the 

 small wheel, so that the 

 small wheel is revolved to 

 right or left. In this way 

 the car is turned com- 

 pletely round, end for end, 

 in its own length. The car is lowered to 

 the ground in the reverse manner. 



The lifting and turning operation is 

 controlled from a single lever mount- 

 ed in a small case in the driver's cab 



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