Popular Science Monthly 



513 



If the Road is Slippery, Sand It with 

 the Newest Automobile Accessory 



SOMEWHAT like that of a human arm 

 in operation is the action of the adjust- 

 able sanding device for automobiles shown 

 in the accompanying illustration. Its 

 principal features are two piv 

 oted fan -mouthed outlet 

 pipes, which may be 

 swung forward or back- 

 ward at the will of the 

 driver to deliver a 

 large quantity of 

 sand at the periph- 

 eries of the driv- 

 ing wheels, or lesser 

 amountson the road- 

 way in front. The 

 sand is fed from a V- 

 bottomed box, beneath 

 the rear seat through a 

 pipe connected with the 

 outlet-pipes. These are piv- 

 oted on a crosswise shaft 

 which extends beneath the 

 vehicle and which is revolved 

 by means of rods and a lever 

 beside the driver's cab. 

 Rubber-faced disks pivoted 

 on the ends of the pipes keep 

 the sand in when the device is not in use. 

 These disks are carried on toggle arms ful- 

 crumed on the crosswise shaft. 



When the driver moves his lever forward, 

 the outlet pipes swing down and backward, 

 the opening of the disks on the pipes 

 increasing as the lever is moved forward. 

 When the ends of the outlet pipes are 

 nearest the peripheries of the wheels, the 

 disks are fully open. The greatest amount 

 of sand is discharged when they are in this 

 position. In intermediate positions they 

 are not open so wide, so that a smaller 

 amount is deposited on the roadway. 



BRIATMER PIPE 



This method for preventing skidding is 

 less severe on the tires than any of the 

 others now in use. Chains placed on the 

 rear tires, for example, tend to wear them- 

 selves into the tires. The indentations they 

 m.ake weaken the tires prematurely. When 

 sand is discharged under the tires, there is no 

 more wear than when an automobile 

 is traveling over a country road. 

 No indentations are 

 made, and the life 

 of the tires are not 

 shortened as a con- 

 sequence. 



The sand makes it 

 possible to travel 

 over icy pavements 

 as well as over roads 

 that are simply slip- 

 pery from the rain. 



The road is slippery? Pull a 

 lever and you sand it, just as 

 if you were on a locomotive 



The sand is fed from a V- 

 bottomed box beneath the 

 rear seat, through a pipe 



PIPE FROM 

 SAMD BOX 



FLEXIBLE 

 HOSE 



PlPl UNI TO/ 

 RADIITOR 



The tank and coil of copper piping under the rear seat are 

 connected with top of the radiator to receive the overflow 



WHEN PIPE I5THR0WM WHEN NOT IN 



BACK COVER AUTOMAT- U5E COVER 15 



ICALLY OPENS TO RE- CLOSED 

 LEASE SAND 



Novel Tank Condenses Boiled -Over 

 Radiator Water 



A SMALL 'tank under the rear seat is 

 provided with a coil of copper piping 

 led forward to the top of the radiator. The 

 end of the pipe coil is kept under the surface 

 of the water in the tank, forming a water 

 seal. When the water in the radiator boils 

 over, it flows down the pipe and seeks its 

 own level in the tank where it is cooled. 

 Due to the water seal, the 

 admission of water in the 

 tank causes a vacuum in the 

 radiator and this sucks cooler 

 water back into it, always 

 keeping it full. 



The' tank has a filler cap 

 which is reached by remov- 

 ing the rear seat cushion. It 

 also has a breather pipe to 

 discharge the excess water 

 automatically should the tank 

 overflow. 



