The New Street Car Motor

The arrangements for the. ranning of the State st. cable care, Chicago, are on this wise : There are two tabes about the size of a cowmon barril about a foot beneath the surface of the street, eomposed of concrete. Every 16 feet, a strong iron rib, nearly thesize of a railroad rail is embeddedÍD the concrete, and coming juet highi enough, and having ilanges at proper places, on which to fasten the railf for the cai'8 to run on. Again, thewt ave other seta of flauges upon tie ribs, which 8U8tain two vshaped raih, within of an inch of each ether, b tJie centre of the track, so tji&t it 'n a oontinuous frame of ir.oö witfc its lower part embeddeti in concrete. Theïo are endles.% cables passiDg through these taes, supposted upon rollers, the Oaüve length, which pass over pulleys, at the ends of the tubes; the upper and lower halves of the cable, of courae, move in opposite directionsjjust like thecüain of aohain-pump. About midway froni each cfld, isi a poweiful engine, which continuous ly moves these cables. The moving of the cables can be seen through tk slot between the inside rail&. Tb'j lot is made so narrow tha.t htt W is of the shoes of the borae, whJ'_. are ontinually passing md. Teassing ver it, cannot ba oaughi.'in lt. The attacUsaent o{ te cars to the able is by a bro, 'aiai ,trongpieoe f stefi, whioh f!, es (]own through he slot betwee; 'ue abnve-mentioned, Dside,Y-slia'irai]Si Ie starting; 'the car, the grip upon tiie cble is but slight, permitting it taslsj. Tut afier motion has been ittftie, by a peculiar twist of the 'vachw.ent it takes a firm hold and the er proceeds to move with ihe sama speed as does the cable ; so no shock is produced in the starting. At present the common horse-cars - one, two, or more, - as may be required.are hitched to the grip car, and so a short train is made up. The arrangements at the ends are not yet perfected for changing the cara by the steam-power, from the track on one side the street, to a return upon the other side, but so far this has had to be effected by horsepowar. It is a curious fact that ducks didf not leave Lake Ontario, as usual last fall, but have reinained all winter. Whether they knew it was going to be an open winter, and, if so, how they knew, is a matter that remains to be f ound out.