. The street railway review . FIG. l6—GOKDAN CAKRIAGE, 1 Iollowing Ihc iiitrothictioii of mechanical travelers, vari-ous designs were presented for a carriage that should carryits own track, and so facilitate its passage over roughground. It is interesting to know that this line of work isstill a favorite line with some so-called inventors, and onlyrecently a trial was made of a similar device. Fig. 15 illus-trates the first of these machines, which was patented in1821 by John Richard Barry of London. The carriage is provided with an endless pitched chain,carrying anti-friction wheels attached
. The street railway review . FIG. l6—GOKDAN CAKRIAGE, 1 Iollowing Ihc iiitrothictioii of mechanical travelers, vari-ous designs were presented for a carriage that should carryits own track, and so facilitate its passage over roughground. It is interesting to know that this line of work isstill a favorite line with some so-called inventors, and onlyrecently a trial was made of a similar device. Fig. 15 illus-trates the first of these machines, which was patented in1821 by John Richard Barry of London. The carriage is provided with an endless pitched chain,carrying anti-friction wheels attached to the same axle asthe running wheels. Under the carriage are arms so hent. FIG. 17—PERPETUAL RAILWAY, iSjO. or curved as to lie clear of the wheels in their are also large wheels at each end of the carriage forthe link chain to pass over. A horse or other power beingapplied to the rails of the carriage, each pair of wheelspasses under the carriage by the action of the chain. Whenthe wheel strikes an impediment, instead of being propelledover it, it stops against it while the carriage proceeds asthough the road were level, until the chain in its revolutionlifts up the opposed wheel, and the object is passed withoutviolence and without extra power, so claimed. Fig. 16 illustrates a similar device by David Gordon in1822. The main wheel of the machine consists of a largehollow cylinder about 9 ft. in diameter and 5 ft. long, bav-in its interior circumference provided with a continuous series of cogs in which are made to work the cogged run-ning wheels of a locomotive. The power being communi-cated to the small wheels, causes them to revolve an
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
