. Electric railway journal . of the adjoining trolley wire. The ease of in-stalling the tongue is one of the strongest features of this de-vice. The top of the casting is made exactly like a standardtrolley ear and is fastened in the same manner. No hinge is re-quired because the necessary lateral movement of the switchblade is obtained through the flexibility of the metal. The restof the equipment includes rods, clevises, bell cranks, woodstrain insulators, turnbuckles and bolts. A device of this kind eliminates the necessity of transferringthe trolley wheel at sidings. Furthermore when the s
. Electric railway journal . of the adjoining trolley wire. The ease of in-stalling the tongue is one of the strongest features of this de-vice. The top of the casting is made exactly like a standardtrolley ear and is fastened in the same manner. No hinge is re-quired because the necessary lateral movement of the switchblade is obtained through the flexibility of the metal. The restof the equipment includes rods, clevises, bell cranks, woodstrain insulators, turnbuckles and bolts. A device of this kind eliminates the necessity of transferringthe trolley wheel at sidings. Furthermore when the siding isnot to be taken the main line is left absolutely unobstructed sothat the wheel may go by without hindrance. PORTABLE ELECTRICALLY DRIVEN RADIAL DRILLFOR A. C OR D. C CIRCUITS The Lamb Electric Company, Grand Rapids, Mich., is makingan electrically driven radial drill either for mounting on thework which is to be drilled or for setting up on a bench as maybe most convenient. The capacity in steel is 1 in. and According to the type ofmotor, the weight of thecomplete equipment variesfrom 125 lb. to 150 lb. This machine can be op-erated in any position; itsextreme height is 40 greatest distance fromthe spindle to the base is28 in., but this can bemade longer or shorter asmay be desired. The dis-tance from the column tothe center of the spindle is854 m- or longer. The col-umn is in. in diameterand is made of steel hole in the spindle isNo. 3 Morse taper. Thetravel of the spindle is 5in. It is operated by a Portable Drill in Two Work- rack and pinion, which ining Positions turn is operated by a worm and gear. The spindle hasquick return when desired. Two speeds (165 and ) can be furnished, the change from one speed to theother being instantly obtained by shifting a knob. The one-speed motors are run at no volts and the two-speed motors at220 volts. Any of these drills can be operated either by a % motor or a H-hp mo
Size: 1228px × 2034px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidelectricrailway371911newy
