The Appeal. [volume] (Saint Paul, Minn. ;) 1889-19??, 1891-09-12

ASucS Iuc WcISuG having Cnc shortest
possible magnetic circuit, it can be en-
ergized with less wire, and, naturally,
less current The armature, being in
the form of a ling, which encircles the
field, can be extended to any diameter,
or made of any desired width. and thus
an enormous initial force-which would
make it desirable IN street car service
could be secured
The stores at Holland, Mich. art
lit by electric lights.
In all sections of New York City
great activity in underground construc-
ton has been shown during the past
year, both in building subways and lay
ing conduits.
"A Spanish nobleman has recently
had an electric plant installed at his
country place, which will be used to
pillow his land with plows run by cleo
trio motors. The power is generated
by water wheel of 2O-horse power, and
is sent distance of three miles.
"A Riverside (Cal.) man is reported
to have arranged an electric frost alarm
! which will be great convenience to
orange growers. It consists of an &C
curate dial thermometer, electrically
connected with bell and switch in such
manner that it will cause the bell to
ring when any desired temperature is
reached
Club men and others, who stay out
late of nights and have difficulty in
finding the keyholes of their doors, can
now take heart, for some genius has in.
vented a walking stick, in the head OF
which is tiny incandescent lamp,
covered ordinarily by a polished knob
The power is applied by miniature
storage battery in the hollow of the
cane, and the light can be turned on at
will. This instrument is called ssThe
Club Mans Friend; or An Adjunct tC
Jollity."
Electric lighting of theaters has be-
come quite general in some sections OF
the country, and promises to become
universal, owing to it's great mobility
over the old forms of lighting. One Of
| the most interesting pieces of work Of
| this kind, says the New York Times, Is
that just finished at Herrmann's new
theater in New York, where the appa-
| ratus is of the most elaborate and com,
plete nature, SO that by means of lights
| of different color and the judicious in,
terpolation of resistances, lighting ef-
fects Of any shade or degree of brilliancy
can be secured by the '.gas man" on the
turning of single switch.
"A new departure in electric light
ing, and one which is certainly to be
most highly commended, says Modern
Light and Heat, has just been made by
the Pennsylvania railroad, which Is
about to equip aline of track, seven miles
in length, with electric lights. The pieca
of track in question runs through a ver7
heavily populated district, and is one on
which, in times past, there have been
frequent accidents. 1t is fully believed
that the advent of the electric light will
prevent their recurrence, and should il
prove as successful an illuminant as il
expected, the wires will lie extended to
cover a much longer district
1t is announced that the Metropoli-
tan Street Railroad Company of Wash
ington, D. c., has decided to change the
entire equipment of its main line from
horse cars to storage battery cars. It is
now building the first instalment of
cars and preparing to commence the To-
cation of an extensive power station at
Rock Creek, between Washington and
Georgetown, adjoining its present car
stables. About 40 cars will be required
on this line, and they will be put in OPP
Grafton, probably in lots of five, as fast
as they can be gotten ready and as soon
as the charging station is started. It is
expected the first cars will be running
in three or four months, and it is said
that the cost of the change to the COM
pany will be $500, 900. Engineer Mail.
| LOUIS motors and gearing will be used.