n such an apparatus depends on abso- Further information with regard to this belt shifter lute isolation, or more heat will leak in than the small may be obtained by addressing Chandler & Farquhar, volume of gas used can take out; thus it is necessary 88 Federal Street, Boston, Mass. A large number… … packing is folded to assume a subtantially rectangular where strength and luster of finish are essen- cross section, while a flap or loose portion is left PRATT’S CONE BELT SHIFTER. tial.” It is an excellent substitute for sea island narrower than the thickness of the main part and cotton, and the…
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