590 



Popular Science Montldy 



The tooth-like points of the harrow brake dig into the ground 

 and hold the car in place until the engine can be started again 



down steep roads should anything go 



wrong with the regular brakes. 



It is the invention of George Stickney, 



of Oregon. It consists of a harrow-like 

 frame suspended from a cross- 

 wise shaft pivoted to the 

 chassis frame directly back 

 of the engine and lowered 

 into contact with the road 

 by means of a system of 

 levers controlled by a hand 

 lever and notched quadrant 

 in the driver's cab. The 

 sharp, tooth-like points of the 

 harrow dig into the ground 

 and hold the car in place 

 until the engine can be 

 started again and the clutch 

 thrown in. They also serve 

 to hold the car until it gets 

 under way. This eliminates 

 the danger of starting under 

 the same conditions without 

 the device, in which case the 

 conventional brakes must be 

 released before the clutch is 

 thrown in. This might allow 

 the car to gain sufficient 

 backward momentum to pre- 

 vent the engine from start- 

 ing and permit the car to 

 drop off the road if the 

 brakes cannot hold it. 



Removable 



A Harrow-Like Brake for Mountain- 

 Climbing Automobiles 



MANY deaths have occurred in moun- 

 tain touring due to the engine going 

 dead while on a steep grade because of the 

 driver's attempt to go up in a higher 

 gear than he should. When the engine 

 stops, the car slides backwards and in 

 many cases goes over the 

 edge of the road if the brakes 

 are not in the best possible 

 condition and the driver does 

 not apply them without losing 

 his head. 



Built along lines very sim- 

 ilar to the harrow used by 

 farmers and drawn over 

 plowed land to level it and 

 break the clods, the novel 

 brake device shown in the 

 accompanying illustration is 

 designed to prevent automo- 

 biles used in mountain tour- 

 ing from running backwards 



The smoke is puri- 

 ne-'! and cooled by 

 passing through a 

 bowl of water before 

 reaching the stem 



A Water-Cooling and Purifying Pipe 

 for the Fastidious Smoker 



THE smoker will welcome the appear- 

 ance of a pipe which not only cools 

 the smoke before it reaches the pipe stem 

 but purifies it as well. Clarence J. Graham 

 and Joseph A. Farris, of Chicago, 111., are 

 the inventors. 



The secret of 

 the cooling and 

 purifying pipe is 

 the bowl of water situated di- 

 rectly below the bowl which 

 contains the tobacco. A metal 

 tube extends from the tobacco 

 bowl down into the water bowl. 

 At the top of the water bowl is an 

 outlet pipe. By puffing the pipe, 

 smoke is drawn through the metal 

 tube, down through the water and 

 out of the outlet pipe through the 

 stem. Thus all smoke passes 

 through the bowl of water before it 

 reaches the smoker's mouth. 



