Weightmobile Approaches 

 Perpetual Motion 



A VEHICLE body mounted 

 on springs has a constant 

 vertical movement, the 

 ampHtude of the motion being 

 dependent on two things: 

 first, the speed of the vehicle, 

 and, second, the inequali- 

 ties of the road. The 

 weightmobile is a piece of 

 mechanism designed to 

 convert oscillations into 

 a continuous rectilinear 

 movement, and thus 

 greatly assist in pro- 

 pelling any moving 

 body on wheels. 



The manner in 

 which this is 

 brought about is 

 shown in the 

 accompanying 

 drawings, which illustrate the power as 

 applied to a boy's push-cart. Fig. i is 

 a side view; Fig. 2 is a top view; Fig. 3 

 is a side view of one of the disks which 

 is attached to the hub of the vehicle, 

 and Fig. 4 is a cross-section of the disk, 

 revealing its interior construction. 



The little 

 push-carts, as 

 now made, 

 comprise the 

 front and rear 

 wheels and 

 body. It is not 

 necessary to 

 make any 

 changes in 

 these elements. 

 The additions 

 required arc to 

 provide the 

 hub of the rear 

 wheel with one 

 of the disks at 

 each end of the 

 hub. The disk 

 in Figs. 3 and 

 4 consists of a 

 central aper- 

 ture which per- 

 mits it to be 



Every bit of energy is used to propel 

 the push-cart 



placed o\er the end of the hub, 

 to which it is secured by bolts 

 through holes. The perimeter 

 of the disk has a wide rim 

 into which are cut four 

 tangentially-disposed cross- 

 grooves, or slots, each of 

 hich is provided with a 

 netal roller. 



Mounted on the frame 



'n Figs. I and 2 is an 



oscillating platform. 



This is secured to the 



frame by means of 



two U-shaped springs, 



enabling its rear end 



to mo\e up and 



down a limited 



distance. A pair 



of flat springs is 



secured to the 



ABM tUMM -FIAT iPBINO 



Fig. 2 



Diagrams of construction details of the weightmobile 



lower side of the platform, and their 

 rear ends project back to points directly 

 above the arms of the respective disks 

 on the rear hub. The arm of one disk 

 projects to the front, while the arm of 

 the other points to the rear. Links 

 between the ends of the flat springs and 



two disk-arms 

 p r o \- i d e a 

 means for im- 

 parting the 

 oscillating 

 motion of the 

 platform to the 

 arms of the 

 disks. 



The tendency 

 of bouncing up 

 and down pro- 

 duces an oscil- 

 lating motion 

 which is ap- 

 plied to the 

 disks in such a 

 manner that 

 the vehicle is 

 fi r o (1 e 1 1 e d 

 whether the 

 platform 

 moves up or 

 down. 



158 



