January, 1923 
39 
quantity of water flowing through a certain 
pipage or the quantity of electricity which 
flows through a certain resistance when the 
pressure is one volt. A safety panel board 
with a door has recently been invented 
which makes fuse housing simple and the 
putting in of new fuses easy. 
There are three kinds of switches: 
1. Push button 
2. Tumbler 
3. Snap 
1. The push button is familiar to the eye 
in wall switch plates. 
2. The snap type is also an established 
item, snapping on all lamp (bulbs) sock¬ 
ets. Hanging cords and pendant switches 
are examples of the snap type. 
3. The tumbler type (see illustration) is 
the newer switch. It is a tiny lever which, 
when your arms are full, you can push up 
or down with your elbow. It has all the 
good qualities of the button and the snap 
plus not needing two fingers to operate it 
and it works at the lightest touch. 
There are four general house varieties of 
these ‘‘plants”: (1) Single pole, (2) Dou¬ 
ble pole, (3) Three way, (4) Four way. 
The single pole switch enables you from 
one point to control any one lamp or a col¬ 
lection of lamps operated together. 
The double pole is used when it is de¬ 
sired to break the circuit in both sides of 
a switch. (The entrance switch referred to 
above is an example). To comply with 
the electric code, it is also used in the 
case of outdoor lamps that are exposed to 
the weather. 
With these switches, save the three-way 
one, it is possible to control any circuit and 
its lamp or lamps from any two places. The 
light in the upper hall may be operated 
from that locality or from the lower hall; 
the living room ceiling light may be turned 
on or off from the living room itself or 
from the front hall. 
The four-way switch may operate lamps 
from any one of the three places, and when 
it is placed between two three-way switches 
it gives an additional point of control. For 
example, with a four-way switch in the 
dining-room and a three-way switch in 
the living room and also a three-way 
switch in the kitchen, the dining room 
lights may be turned on or off from any of 
three rooms. And there are numberless 
other combinations. 
You may also have a switch that oper¬ 
V 
ates from the master’s bedroom which will 
turn on as many lights as desired—one in 
every room in the house if the wiring is 
adequate, furthermore, this switch may be so 
arranged that the lights can be turned off 
or on only in the master’s room. There is 
no more convenient switch in the house than 
the tumbler switch just outside the closet. 
This switch is not dependent on the door 
opening or closing. For sometimes the 
light may stay lit on a door controlled 
switch and then the bills go up. 
Put switches always where you don’t 
have to grope for them. As for instance, 
just within the door, hand-high, next to 
the door in the hallway, or adjacent to 
the door that leads into the living room. 
Where two or more switches are to be in¬ 
stalled side by side, they can be put under 
one plate. 
While your house is still on the archi¬ 
tect’s drawing board, point out to him ex¬ 
actly where your furnishings will be placed, 
then arrange for electric outlets where they 
seem most convenient. If your piano is 
to be in one place and your book cases in 
the other, have the outlets so placed so that 
the reading of words and notes may never 
be an eye strain. 
You know where you are going to have 
your bathtubs, your washstands, the win- 
(Continued on page 80) 
T 
Electric workroom; with the new Duplex overhead light, courtesy The Duplex 
Light Company; a convenient electric range, courtesy the Magee Stove Com¬ 
pany; an attachable ironer, The Baby Grand; and the Delco clothes washer 
