The San Francisco call. [volume] (San Francisco [Calif.]) 1895-1913, 1895-03-24
NEWTON ROGERS,
Hickman. Nebr.

The electric motor has worked radical
change in the application of powerin many
| industries. In office buildings, where 1t
has superseded steam plant, the fireman
and the engineer are dispensed with and
this feature of economy appeals forc1bly to
managers of both public and commercial
departments. In the factory OF meat
packing company motor operates the hog
hoist. A loop is slipped around the hog
| leg, the motor switch is pressed and in an
| instant the porker is jerked up to plat
| form and disposed of by an attendant. In
a second or two more 1T has started on its
varied mission of usefulness by way or the
| boiling water tank This scientific butchery
| is much less repellant than the old style
! For photo-engraving the peculiar adapta-
! bility of the electric motor is shown by the
! fact that the reuter- requires speed OF
| Ia 600 revolutions per minute, so as to over
! come the vibration which lmpa1rS the ac-
| curacy of the work and this. is attained
satisfactorily only by means of electricity.
| In the postotfice the electric motor works
stamping-machine, which impresses the
| date mark on letters at the rate of 600 per
minute. In a jewelry store the same
agency operates a gem-cuttlng machine,
which is said to do the work of twenty of
| the most skilled laborers in the country.
THE CosT OF ELECTRIC CooKING.--Inquiry
is often made as to the cost OF electric cook
ing. Nelson w. Perry, writing on this
| subject, gives the most reliable data at
present obtainable. The cost of an electric
! lamp is taken at about l cent per hour
| One pint of water can be brought from
go degrees Fahrenheit to the boiling point
| at the cost of two 16-candlepower lamps
| for one hour; or, by the use of the equiva-
| lent of lamps it can be made to boil in II
| Uhi NV no IF he
! lent of 1917 lamps it can be made to boil in
81 minutes. Four or five outlets can be
! fried by employing the equivalent of 5
lamps for II minutes; this includes the
time required for heating the pan. When
| the electric oven is used, thee equivalent of
Is lamps will raise the temperature from
| So degrees Fahrenheit to 100 degrees in 5
minutes, to 256 degrees in 10 minutes, to
800 degrees IN is minutes, and to 437 de-
grees in 20 minutes. AT this rate electrical
cooking is still more expensive than ordi-
nary methods. Nevertheless, its use is
daily increasing. Its great advantage is
perfect cleanliness.
ELECTRIC CANAL-BoAT HAULAeE. - The
opening of the spring season will be sig
nalized by great activity among the ex-
ploiters of electric canal-boat haulage sys-
TENS. On the towpath, as on the street
railway, the day of the mule is over; and
the wide adoption of electric haulage is
only waiting on the result of the expert
ments In progress for the demonstration OF
the merits of the many methods which
nave been proposed, Some months ago an
electric galloway for logging was made
pubic. and excited much favorable atten-
ton, This system has been applied to
canal-boat towing, and it is claimed that
Tor that purpose it is in many respects SUI
perlor to electrical propeller systems de-
signed on the principle of the trolley,
many of the disadvantages of which were
shown in the recent State experiment on