. Cassier's magazine. LL ELECTRIC MOTOR USES 301 made by the Organ Power Company,of Hartford, Conn. This apparatusconsists of a non-resonant case of cyl-indrical form, which is virtually theshell of a pressure blower. Within thiscase is an electric motor carrying on itsshaft a vaned fan which furnishes theblast. The apparatus is much morecompact for a given output than any ofthe previous combinations of motor andbellows or motor and fan. The motor,although fully enclosed within a practi-cally sound-proof chamber, where it is operated freezer (Fig. 11), the cost ofpower was about cents pe
. Cassier's magazine. LL ELECTRIC MOTOR USES 301 made by the Organ Power Company,of Hartford, Conn. This apparatusconsists of a non-resonant case of cyl-indrical form, which is virtually theshell of a pressure blower. Within thiscase is an electric motor carrying on itsshaft a vaned fan which furnishes theblast. The apparatus is much morecompact for a given output than any ofthe previous combinations of motor andbellows or motor and fan. The motor,although fully enclosed within a practi-cally sound-proof chamber, where it is operated freezer (Fig. 11), the cost ofpower was about cents per gallon,the price of electricity being 10 centsper kilowatt-hour. Where electrically operated freezersare used, ice crushing machines, adaptedto be driven by similar means, are or-dinarily employed. The mechanicallycrushed ice is far superior to ice crushedby the usual methods in that the size ofthe fragments is more uniform,—less iceis pulverised and thereby lost, —and asthe operation is very quickly done, it is. FIG. l6.—A PUMP DRIVEN BY A HOLTZER-CABOT ELECTRIC COMPANY MOTOR well protected against damage, is thor-oughly ventilated by a strong current ofair, thus enabling it to operate at maxi-mum output without danger of overheat-ing. The blast is exceedingly steady,and is automatically regulated to thevarying requirements of the the freezing of ice cream, motor-driven apparatus is largely supersedingthe older manually operated forms. Theexpense of operation is materially re-duced and the grain or texture of theproduct largely improved. In a recenttest with a moderate sized electrically necessary to prepare only a little at atime, as occasion requires*. This resultsin a considerable saving over the oldermethods, where a quantity of crushedice was prepared, sufficient for the daysrequirements, perhaps. As finelycrushed ice exposes much greater sur-face to the air than block or coarselycracked ice, the melting is more rapid,and in preparing only a small p
Size: 1605px × 1556px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyork, booksubjec
