lways move (No. 2), consisting of a steel spiral which is provided broken away. The axle, spindle and box may be of or- to and from the centers in contraction and expansion. with lugs at its extremity. The number of spirals and dinary pattern; but the outer end of the spindle is All joints will be… … elastic cone is inclosed in a tight cast iron box. The transmission may be reversed according to circum- JOHNSTON’S RAILWAY RAILS AND RAIL FASTENINGS. stances. Upon one extremity of the driving shaft is keyed the cast iron cone, and upon this is placed the one another; in fact, they should never…
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