268 



Popular Science Monthly 



Cigarette 



Smoke inlet valve 



Device for forcing 

 smoke through tube 



Rubber bulb ' x Smoke outlet 



valve 



The dummy smokes a real cigarette in a 



realistic manner. Smoke is drawn in through 



one tube and is forced out through another 



The Dumb Turk. He Smokes Cigar- 

 ettes and Doesn't Know It 



A DUMMY who smokes cigarettes as 

 realistically as a living human being 

 is now used to advertise the fragrant aromas 

 of different grades of tobacco. The idea is 

 not to show the public how well a cigarette 

 burns or how well the dummy smokes it, 

 but to enable smokers to smell the smoke as 

 it is automatically puffed out by the ap- 

 paratus concealed within the dummy. 

 The moment cigarette smoke is drawn into 

 the mouth it loses its odor. With 

 the dummy none of the frag- 

 rance is lost. . 

 There are two tubes within § 

 the dummy. One leads to 

 the cigarette in the dum- 

 my's mouth and thence 

 to a bulb. A second tube 

 extends from the bulb to 

 the mouth. The smoke is 

 drawn in through the first 

 tube and through a valve 

 into the bulb. When the 

 bulb is pressed the smoke is 

 forced into the second tube 

 and led to the mouth, where 

 it is expelled. A small mo- 

 tor operates the bulb. It 

 is regulated so that the 

 dummy can smoke fast or 

 slow as the exhibitor desires. 



The annular rubber pad com- 

 pressed between the base of 

 the tire and the steel felloe 

 band locks the tire in place 



An Easily Adjusted Tire. It Locks 

 Itself on the Wheel 



ANEW type of tire just brought out by 

 an Akron manufacturer is designed to 

 eliminate the trouble experienced in mount- 

 ing either a demountable or pressed-on 

 solid tire on the wheel of a motor-truck. 

 It employs the compression of an annular 

 rubber pad between the steel base of the 

 tire and the steel felloe band on the wheel 

 to lock the tire on the wheel. The annular 

 ring or pad of rubber is about one inch 

 thick and is the same width as the tire 

 proper. This rubber pad is inserted between 

 the steel base of the tire and the steel felloe 

 band on the wheel. The pad is retained by 

 two steel rings, one on either side, bolts 

 extending clear through the pad from one 

 ring to the other. Twelve of these bolts are 

 employed, each with a nut on the outside of 

 the wheel. As these bolts are screwed down 

 by means of a socket wrench, the width of 

 the rubber pad is decreased while its thick- 

 ness is increased. 



This swelling of the pad exerts pressure 

 on both the base of the tire and on the steel 

 felloe band, serving to lock them together 

 and make them revolve as a unit. The tire 

 is removed in a few seconds time by merely 

 loosening up the twelve bolts and permit- 

 ting the pad to assume its natural thick- 

 ness. Then the tire is simply slid off the 

 wheel. 



Aside from the characteristic of easy at- 

 tachment and removal, the pad also serves 

 as a cushion to the tire itself, tending to 

 reduce the road vibration transmitted to 

 the wheel, axle and driving mechanism. 

 Other claimed advantages for the pad 

 that it permits greater truck 

 speed without harmful effect, 

 greater tire mileage and abil- 

 ity to wear the tires down 

 nearer the base, all because 

 of the greater resilience of 

 the wheel as a whole due 

 to the increased amount 

 of rubber between the 

 axle and the point' of con- 

 tact with the ground. 

 In application, tires of 

 the next larger size or two 

 inches greater in diameter 

 are employed. In this way 

 wheels of the same size as 

 those on which the ordinary 

 tires are pressed maybe used. 

 The pad also prevents the sur- 

 faces from rusting together. 



