Popular science monthly . Diagram showing controllerand the power connection drum carrying the brake-cable being fourhundred to one. This is secured bymeans of a non-reversible worm-gear onthe armature-shaft which drives anothergear in mesh with an internal-toothedgear on the cable-drum. Between thedrum and the worm-gear is an adjustablefriction-clutch b\ means ofwhich suflirient pressure issecured to transmit tiiemaximum braking effect,but beyond which, it willslip. After a thousand-pound pull has been ex-erted on the cable, the slij)-pingclutch i-omes into pla\ ,pre\eTitiiigan> further pu
Popular science monthly . Diagram showing controllerand the power connection drum carrying the brake-cable being fourhundred to one. This is secured bymeans of a non-reversible worm-gear onthe armature-shaft which drives anothergear in mesh with an internal-toothedgear on the cable-drum. Between thedrum and the worm-gear is an adjustablefriction-clutch b\ means ofwhich suflirient pressure issecured to transmit tiiemaximum braking effect,but beyond which, it willslip. After a thousand-pound pull has been ex-erted on the cable, the slij)-pingclutch i-omes into pla\ ,pre\eTitiiigan> further pull,^\]lile a ratchet keejis thelirake bom slipping of the powerful OH Popular Science Monthly EQUALIZERREMAINS ORDINARY brake: rod AND HAND ,RtMOVtD WIRES TO CONTROLLERON WHEEL. ELECTRIC BRAKECABLE. POSITION OFELECTRIC BRAKETO CORRESPONDWITH PHOTO The motor can be attached to any make of automobile simply by substituting it for theusual hand-levers, lever quadrant and brake connections. The brake is disengaged by push-ing the switch-handle back to its original position. The device weighs twenty-five pounds pull on the brake-cable, it has been foundfeasible to have the brake-drums run inoil, reversing the usual practice which isto keep them as dry as possible. By means of the two-point switch-con-troller, the electrical energy is so govern-ed that the brake can be applied graduallyor in the fraction of a second in anemergency. The first-point switch posi-tion supplies enough braking power forservice purposes and the second for anemergency stop. A Device for Adjusting the Ends ofSteel Rails ARAILROAD man ofLouisiana has inventeda device for adjusting rails,which is employed at therail-ends where spaceis allowed for expan-sion and contrac-tion. Two strong clamps
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
