83'2 



Popular Science MoiitJiJ}/ 



The 



The engineer's wind shield 

 is fixed to the window-frame 

 of the cab. High speed does 

 not affect its operation 



A Wind-Deflecting Lookout Mask 

 for Engineers 



A STEEL mask for railroad engi- 

 neers which secures for them 

 a clear vision ahead, that cannot 

 be obscured by the snow, rain or 

 sleet, is being tried out on engines 

 of the Canadian Pacific Railroad, 

 mask, which is attached to the window- 

 frame of the cab, contains no glass, its 

 principle being based on the deflection of 

 wind currents 1j\- flanges. 



At the top of the shield, curved nuial 

 plates, one behind the other, \iruiall\- 

 scoop in the air and thrust it df)wnward 

 into a short air-chute, which ejects the 

 draft automatically. Between the upper 

 plates and the chute is a broad slit, 



through which the engineer has 

 an unobscured vision of the 



roadway. 



It is said that this eye- 

 protector is so efificient 



that a light fall ol 



snow — which is con 



sidered to be the 



most trying of con- 

 ditions — will have 



no effect upon it. 



Another experiment, 



which attested to its 



efficienc\', was made 



by lighling a match 



behind the gap. The 



flame wastlrawn for- 

 ward. The speed at 



which the train is 



traveling rioes not 



affect the operation 



of the shield. 



An Adjustable Steering Device 

 for the Farmers Tractor 



NOW comes the ?ell-sieered light farm- 

 tractor, so built that the operator can 

 gi\e more attention to his plows and tiiat 

 an\- irregularities in the furrows are com- 

 pensated for. Two disks, 

 mounted on a rod attached to 

 the axle of the front wheels, 

 are set so that their rims or 

 edges are closer together at 

 the front than at the rear. 

 The outer disk is larger and is 

 -'-5-- set lower than the inner one, 

 ', ', so that, when placed in a 



--, furrow, it pushes the inner 



/ one against the land-side of 



tiie furrow. The tractor- 

 wheels are pre\ented from swer\ing 

 by the pressure of the inner disk 

 against the land-side of the furrow. 

 The disks are mounted on a rod 

 supi^orted by chains, pulleys and a 

 lever, which raise them from the 

 ground for turning corners or for 

 mo^•ing the tractor from the field. 



LIFTING LEVtO AM) 

 CHAIN CONNECTION 



LIFTING ^ROD 



LIFTING LtVER. 

 STEEJtING DLVICL 



,'' ^^i N 



CHAIN SHPWE 

 SUPPORT ANGLE 



The device is adjustable so that the tractor will 

 run olmost any desired distance from the furrow 



