The Intelligent Motor Milk-Wagon 



Like the milkman's trained horse it ambles mechan- 

 ically on while deliveries are made from door to door 



A half - nut enmeshes with 

 the threaded - shaft and is 

 moved by it when the wagon 

 is running. The farther to 

 the left it is placed the longer 

 it will take it to move the 

 control-lever and stop the car 



A 



T LAST the iiUflligcnce of a niilh- 

 man's or baker's horse in nioxini^ 

 from house to house during deli\eries 

 has been duplicated by a de\ice applicable 

 to any type of motor vehicle. It consists 

 of a mechanism which may be set to bring 

 the \ehicle automatically to a stop at any 

 desired distance from its position. 



The operator of a truck fitted with the 

 new device ma\- fill his crate with enough 

 loaves of bread or bottles of milk to suppK' 

 a block or row of houses and set the control 

 mechanism to run the truck to the end of 

 the row while he goes from house to house. 



The mechanism, the work of C. M. 

 Manly, the in\entor of the Manly hydraulic 

 dri\e for motor-trucks, is shown in the 

 accompanying sketches apjilied to a ^■ehicle 

 with that t\pe of dri\-e, although by suit- 

 able attachment to the clutch and brake- 

 operating pedals it ma\- be fittetl to trucks 

 with ordinary- spur-gear transmissions that 

 have shifting control members. 



The device consists of two parallel shafts 

 mounted on brackets on one side of the 

 truck frame, forward of the jackshaft, as 

 shown in the accompanying illustration. 

 The outer of the two shafts, driven by 

 means of a bevel-gear at its rear, which 



meshes with another on the extreme end 

 of the jackshaft, drives the inner shaft 

 through a pair of spur-gears. The outer 

 shaft carries loosely a half-nut, the 

 threaded portions of which engage the 

 threads on the inner shaft. The nut can 

 also be disengaged from the shafts and 

 stored away when the driver is running the 

 car from the seat. In its course along 

 the threaded portions of the inner shaft 

 liie half-nut comes into contact with a 

 \eriical arm of the vehicle which is 

 connected with the speed-control bar at- 

 tached to the hydraulic pump through a 

 shaft crosswise. 



In operation, the driver sets the half- 

 nut on the rearmost of the threaded por- 

 tions of the inner shaft, according to 

 graduations marked on the outer shaft. 

 He then moves the vertical hand-control 

 Ie\cr for%vard a short distance to start the 

 truck at slow speed. Then as the vehicle 

 mo\es for^vard, the inner shaft is re\olved 

 antl with it the half-nut is moved forward 

 until it comes in contact with the control- 

 lever, at which time the nut moves this 

 vertical lever on the crosswise control- 

 shaft to its middle position, and causes 

 the vehicle to stop. 



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