close

Вход

Забыли?

вход по аккаунту

?

код для вставки
Dec. 3, 1946.
I B. R'EISBERG E'I' AL
2,412,052
ELECTRIC LIGHTING SWITCH
Filed Sept. 11., 1945
2 Sheets-Sheet l
INVENTORS
Bmmmm Relsqene
BY DAVID ScH
R2
5 ,mah /- 7 /
ATTORNEY
Dec. 3, 1946. ~
B. REISBERG ET AL
2,412,052
ELECTRIC LIGHTING SWITCH
Filed Sept. 11, 1945
2 Sheets-Sheet 2
BY fawn: ‘I-c
Patented Dec. 3, 1946
UNITED STATES PATENT OFFICE
2,412,062
ELECTRIC LIGHTING SWITCH
Benjamin Reisberg and David Schwarz,
Elmhurst, N. Y.
Application September 11, 1945, Serial No. 615,666
11 Claims. (Cl. 201-55)
This invention relates to new and useful in -
provements in electric switches.
More particularly the invention proposes a new
and improved switch which is capable of con
trolling the amount of power passing through
a circuit. The switch may be turned “on” and
“off.”
While in the “on” position it may be ad
iusted for controlling the quantity of electric
power passing through it. The switch is par
ticularly intended to control lighting systems. 10
With the switch it is possible to change the in
tensity of light from the electric light bulbs, as
desired.
The new and improved electric light switch is
per se, to better show the construction of these
parts.
Fig. 6 is a perspective view of one of the cas
ings used in the switch for supporting the re
sistance windings.
Fig. '7 is a perspective view of one of the re
sistance windings.
Fig. 8 is a fragmentary enlarged sectional view
taken on the line 8——8 of Fig. 2.
Fig. 9 is a perspective view of the insulation
disc and contact arms, illustrated per se.
Fig. 10 is an elevational view of Fig. 9, but to
which a fragmentary sectional view of the wind
ings have been added.
Fig. 11 is a schematic wiring diagram of the
device.
characterized by a plate provided with an open
ing through which an insulation disc is rota~
tively supported so that the disc may be easily
Fig. 12 is a front elevational view of an elec
tric switch constructed in accordance with a
resistance windings in back of the plate and it
modi?ed form of this invention.
is proposed to provide the insulation disc with 20 Fig. 13 is a side elevational View of Fig. 12
turned.
It is proposed to mount one or more
one or more radially extending contact arms en
looking in the direction of the line iii-13 of
Fig. 12.
gageable with said resistance winding, or wind
ings by which the power through the switch
Fig. 14- is a fragmentary enlarged vertical sec
may be controlled.
tional view taken on the line [IL-i4 of Fig. 12.
The invention proposes an exceptionally sirn— 25
The electric switch in accordance with that
Dle and advantageous manner of mounting and
form of the invention illustrated in Figs. 1 to 11
supporting the resistance windings in position.
inclusive, includes a plate is having an opening
The new and improved switch is susceptible to
ll through which an insulation disc [2 is rota
many modi?cations. One modi?cation has been
30 tively mounted. The disc i2 is mounted upon a
disclosed in this speci?cation, in which the in
pin is which is engaged through strip portions
sulation disc is associated with positive latch
l5 stamped from the material of the plate l9
means by which it may be locked in various
and arranged to form bearings for the ends of
positions.
the pin is. The plate is is provided with lugs
Still further the invention proposes a new and
i6 having openings I‘! by which the switch may
improved electric switch, as brie?y explained, 35 be conveniently mounted, as needed. The
periphery of the disc i2 is formed with ribs H3,
which is exceptionally simple, and which may
or roughened portions, so that it may be easily
be manufactured and sold at a reasonable cost.
turned.
For further comprehension of the invention,
A pair of opposed semi-circular casings 29 are
and of the objects and advantages thereof, ref
erence will be had to the following description 40 mounted upon the back of the plate it. Each
casing it has lugs 2! upon its ends which engage
and accompanying drawings, and to the ap
against the back face of the plate is and by
pended claims in which the various novel fea
tures of the invention are more particularly
forth.
which the casings are ?xedly mounted on the
1.
53b
45
plate.
Fastening elements 22 engage through
the plate iii and the lugs 2! for connecting these
In the accompanying drawings forming a ma
parts. Each casing 20 has a pair of concentric
terial part of this disclosure:
slightly spaced side walls 23 and 24 and a back
Fig. 1 is a front view of
electric switch
wall 25. A strap 26 is mounted across the outer
constructed in accordance with this invention.
side walls 24 for assisting in supporting the
Fig. 2 is a back view of Fig. 1.
50 casings 20.
Fig. ‘3 is a vertical sectional view taken on
A pair of resistance windings 28 are mounted
the line 3-3 of Fig. 2.
in and projected from said casings 29. Each
Fig. 4 is a side-elevational View of the switch.
resistance winding 28 comprises an insulation
Fig. 5 is a perspective view of the front plate
and the insulation disc of the switch, illustrated. as core 29 about which a resistance wire 39 is
mounted. At the ends, the cores 29 are provided
2,412,062
with insulation coverings 3|. A terminal 32 is
4
pair of radial electrically connected contact arms
connected with one end of each of the windings
30 and pass out from slots 33 formed in the side
walls 24.
A pair of radially electrically connected con
tact arms 35 are mounted on and project from
mounted on and projecting from the back of said
disc and contacting said windings, and electric
different positions along the windings 38. The
windings, said plate being provided with lugs
terminals connected with one of the ends of said
windings.
2. An electric switch, comprising a plate, an in
sulation
disc rotatively mounted on and through
the back of said disc [2. These contact arms are
an opening in said plate, a pair of opposed semi
resiliently urged apart and are electrically con
circular casings mounted on the back of said
nected by a spring 31 mounted between them.
plate,
a pair of opposed resistance windings
10
The contact arms 36 normally contact the pro
mounted in and projecting from said casings, a
jecting edges of the windings 30.
pair of radial electrically connected contact arms
The operation of the electric switch may be un
mounted on and projecting from the back of said
derstood from the following:
disc and contacting said windings, and electric
The disc I2 may be turned in one direction, or
the other so as to move the contact arms 36 to 15 terminals connected with one of the ends of said
by which it may be mounted, as desired.
windings 30 are spaced from each other, and the
3. An electric switch, comprising a plate, an
contact arms 36 connect them in series. The ter
insulation
disc rotatively mounted on and through
minals 32 may be connected into an electrical
an
opening
in said plate, a pair of opposed semi
20
circuit which the switch is to control. When the
circular casings mounted on the back of said
contact arms 36 are moved to the extreme ends
plate, a pair of opposed resistance windings
of the resistance windings 28 they will engage
mounted in and projecting from said casings, a
upon the insulation coverings 3| whereupon the
pair of radial electrically connected contact arms
switch is open. When the arms 38 are moved to
'di?ferent positions upon the resistance windings 25 mounted on and projecting from the back of said
disc and contacting said windings, and electric
28 different amounts of the resistance windings
terminals connected with one of the ends of said
will be connected in the circuit and in this way
windings, said insulation disc having ribs or
the current is controlled.
roughened portions upon its periphery.
In Figs. 12 to 14 inclusive, a modi?ed form
4. An electric switch, comprising a plate, an
of the invention has been disclosed which is very
insulation disc rotatively mounted on and through
similar to the prior form except for the fact that
an opening in said plate, a pair of opposed semi
the disc 132 has been associated with positive
circular casings mounted on the back of said
latching means, by which it may be held in vari
plate, a pair of opposed resistance windings
ous turned positions. More speci?cally, one side
of the disc 62 is provided with an annular area of 35 mounted in and projecting from said casings, a
pair of radial electrically connected contact arms
radially extending teeth, or serrations 43 which
mounted on and projecting from the back of said
are capable of engaging the edge of the opening
disc and contacting said windings, and electric
H in the plate ill, upon which the disc s2 is
terminals
connected with one of the ends of said
mounted. A split washer 4A, or any other resil
windings, said casings being provided with lugs by
ient member normally urges the disc 62 slightly
which they are mounted on said plate.
laterally to engage said serrations 453 with the
5. An electric switch, comprising a plate, an in
edge of the opening I i.
sulation
disc rotatively mounted on and through
In other respects this form of the invention
is identical to the prior form and like parts may 45 an opening in said plate, a pair of opposed semi
circular casings mounted on the back of said
be recognized by the same reference numerals.
plate, a pair of opposed resistance windings
, The operation of this form of the invention is
mounted in and projecting from said casings, a
substantially identical to the prior form, how
pair of radial electrically connected contact arms
ever, before the disc 42 may be turned for con
mounted on and projecting from the back of said
trolling the electric current through the switch, it
disc and contacting said windings, and electric
is necessary that the disc 42 be moved slightly '
terminals connected with one of the ends of said
laterally, for compressing the split washer G4 and
windings, each of said casings having concentric
for disengaging the teeth or serrations 43 from
side walls and connecting back walls.
the edge of the opening H. Now it is possible to
6. An electric switch,- comprising a plate, an
turn the disc 42 for causing the contact arms 35
insulation disc rotatively mounted on and
to assume di?erent positions upon the resistance
through an opening in said plate, a pair of op
windings. When the disc 42 is released, the re
posed semi-circular casings mounted on the back
silient washer 44 urges it laterallyv so that the
of said plate, a pair of opposed resistance wind
serrations 153 are engaged with the edge of the
ings
mounted in and projecting from said cas
opening H.
While we have illustrated and described the 60 ings, a pair of radial electrically connected con
tact arms mounted on and projecting from the
preferred embodiments of our invention, it is to
back of said disc and contacting said windings,
be understood that we do not limit ourselves to
and electric terminals connected with one of the
the precise constructions herein disclosed and the
ends of said windings, said resistance windings
right is reserved to all changes and modi?ca
tions coming within the scope of the invention as 65 comprising a core of insulation material and a
winding upon said core.
de?ned in the appended claims.
'7. An electric switch, comprising a plate, an
Having thus described our invention, what we
insulation disc rotatively mounted on and
claim as new, and desire to secure by United States
through an opening in said plate, a pair of op
Letters Patent is:
1. An electric switch, comprising a plate, an 70 posed semi-circular casings mounted on the back
of said plate, a pair of opposed resistance wind
insulation disc rotatively mounted on and through
ings mounted in and projecting from said cas
an opening in said plate, a pair of opposed semi
ings, a pair of radial electrically connected con
circular casings mounted on the back of said
tact arms mounted on and projecting from the
plate, a pair of opposed resistance windings
mounted in and projecting from said. casings, a ' back of said disc and contacting said windings,
2,412,062
and electric terminals connected with one of the
ends of said windings, said resistance windings
comprising a core of insulation material and a
10. An electric switch, comprising a plate, an
insulation disc rotatively mounted on and
through an opening in said plate, a pair of op
winding upon said core, and insulation members
posed semi-circular casings mounted on the back
upon the ends of said resistance windings rep~
of said plate, a pair of opposed resistance wind
resenting the open position of the switch.
ings mounted in and projecting from said cas
8. An electric switch, comprising a plate, an
ings, a pair of radial electrically connected con
insulation disc rotatively mounted on and
tact arms mounted on and projecting from the
through an opening in said plate, a‘pair of op
back of said disc and contacting said windings,
posed semi-circular casings mounted on the back
of said plate, a pair of opposed resistance wind IO electric terminals connected with one of the ends
of said windings, and latch means for holding
ings mounted in and projecting from said cas
said disc in various turned positions.
ings, a pair of radial electrically connected con
11. An electric switch, comprising a plate, an
tact arms mounted on and projecting from the
insulation disc rotatively mounted on and
back of said disc and contacting said windings,
through an opening in said plate, a pair of op
and electric terminals connected with one of
posed semi-circular casings mounted on the back
the ends of said windings, said contact arms be
of said plate, a pair of opposed resistance wind
ing electrically connected with an expansion
spring.
ings mounted in and projecting from said cas
ings, a pair of radial electrically connected con
9. An electric switch, comprising a plate, an
insulation disc rotatively mounted on and 20 tact arms mounted on and projecting from the
back of said disc and contacting said windings,
through an opening in said plate, a pair of op
electric terminals connected with one of the ends
posed semi-circular casings mounted on the back
of said windings, and latch means for holding
of said plate, a pair of opposed resistance Wind
said disc in various turned positions, comprising
ings mounted in and projecting from said cas
ings, a pair of radial electrically connected con 25 resilient means urging said disc laterally against
one side of said opening in said plate, and ser
tact arms mounted on and projecting from the
rations or teeth on the side of said disc engaging
back of said disc and contacting said windings,
the edge of said opening.
and electric terminals connected with one of the
ends of said windings, said casings being pro
vided with cutouts through which said electric 30
BENJAMIN REISBERG.
terminals extend.
DAVID SCHWARZ.
Документ
Категория
Без категории
Просмотров
0
Размер файла
481 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа