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Патент USA US2403667

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J'uly w 1946.1
Filed Dec. 56, 1945
2 Sheets-Sheet 1
Reuben W. vLowering
54 "1,1
.796 25 2'2 19 is 4'2,
July 9, 194$);
Fiied Dec. so, 1943
2 Sheets-Sheet 2
Reuben W. Levering
Attot- mas -
Patented July 9, 1946
Reuben W. Levering, Minneapolis, Minn.
Application December 30, 1943, Serial No. 516,163
1 Claim. (Cl. 200—-39)
My invention relates to time controlled switch
Fig. 2 is a view similar to Fig. 1, showing the
mechanisms and has for an object to provide a
switch in reversed position.
time controlled switch mechanism, the operation
Fig. 3 is an end elevational view of the struc~
of which can be readily reversed.
ture shown in Fig. l, with portions of the case
An object of the invention resides in providing
removed to illustrate the construction of the
a time controlled switch mechanism which can
switch and supporting structure therefor.
be made to either open a circuit at a predeter
Fig. 4 is a fragmentary plan view of the struc
mined time or which can be made to close a
ture shown in Fig. 1 with portions of the case
circuit at a predetermined time.
and other parts cut away to illustrate the control
Another object of the invention resides in pro 10 device for the switch and drawn to an enlarged
viding a time controlled switch mechanism which.
will function when set in operation to maintain a
Fig. 5 is a view similar to Fig. l of a modi?ca
circuit closed for a predetermined length of time
tion of the invention.
and then open the circuit, or which can be re
Fig. 6 is a'fragmentary view similar to Fig. 3
versed in operation to maintain the circuit open 15 of the structure shown in Fig. 5.
for a predetermined length of time and then close
In the operation of radios and other electrical
the circuit.
appliances, it becomes desirable at times to turn
A still further object of the invention resides
on the appliances at a predetermined time, as for
in providing a mounting movable in opposite
example, to turn on the heat under a cooking
directions and in supporting a switch thereon 20 utensil or to turn on the radio at the time
in a manner to cause opening and closing of the
scheduled for a certain program. At other times,
switch upon movement of the mounting in oppo
it becomes desirable to turn o? an electric circuit
site directions.
at a desired time. In the cooking of certain foods.
A feature of the invention resides in providing
it may be desirable to cook the same for a cer
a switch mechanism of such character in which (Q Li tain length of time and then turn off the current.
the switch may be reversed in position upon the
Likewise, it may become desirable to turn oiif the
mounting to cause reversal in operation of the
radio at the end of a certain program. The in~
switch upon movement of the mounting.
stant invention provides a time controlled switch
Another object of the invention resides in pivot—
mechanism which may be readily applied to a
ally supporting the switch upon the mounting
clock and means by which either of these func
to permit of end to end movement of the switch
tions can be readily procured by the simple and
to procure reversal in operation of the switch.
rapid manipulation of the proper control elements
A still further object of the invention resides
in utilizing a mercury switch attached to a swing
For the purpose of illustrating the application
able support adapted to be moved to tilt the switch
of my invention, I have shown in the drawings an
from open to closed position and vice versa and
ordinary clock l0 in the nature of an alarm
in further supporting the switch on the mount
clock which may be electrically operated or
ing in such a manner that the switch may be
turned end for end so as to procure reversal in
operation of the switch.
Another object of the invention resides in
pivotally supporting the switch on the mounting
for movement through an angle of 180°, so as to
procure end for end movement of the switch,
whereby reversal in operation of the switch is
Other objects of the invention reside in the
novel combination and arrangement of parts and
in the details of construction hereinafter illus
trated and/or described.
In the drawings:
Fig. 1 is an elevational view of a clock with. a
spring operated, as desired. Inasmuch as the
invention does not consist in the construction of
the clock, the same has not been shown in detail,
though it can be readily comprehended that any
suitable clock mechanism such as are now well
known in the art, may be used for the purpose.
The clock It] shown comprises a case I! having
a front wall l2, a rear wall l3 and end walls M
and I5 connected together by a curved upper wall
[6. The case H is supported on a base 9. Within
the case is disposed a clock mechanism indi
cated in its entirety by the reference character
ll, best illustrated in Figs. 1 and 3. This clock
mechanism comprises a front frame 2'! and a
rear frame 28 held in spaced relation by means
switch mechanism illustrating an embodiment
of posts 29 in the customary manner. The said
of my invention applied thereto and showing a
clock mechanism includes an hour hand sleeve
portion of the case of the clock broken away.
55 l3 and a minute hand arbor l9 concentrically
mounted for rotation carrying the usual minute
hand 2| and the hour hand 22, both movable over
ates to hold the arm 45 in the position shown in
full lines in Fig. 1. A weight Bl), attached to the
a dial 23 formed on the front wall 12 of case
II and which serves as the face of the clock.
These hands are driven by the usual clock gear
end of the arm 45, tends to move said arm to its
arbor 24 and attached to a gear 33. The gear 33
is driven from a pinion 34 which is mounted on
an arbor 35 driven from the gear train of the
clockwork H. The cam 32 has an elevated cam
surface 35 formed with a notch 39 therein. The 25
wall iii of case H and moves along this slot from
one extreme position to the other as shown in Fig.
1. The clip 51 carrying the switch 55 may be ro
tated by means of shaft 58 and the thumb piece
53 from the position shown in Fig. 1 to that shown
cam 32 is held in engagement with the finger
26 by means of a leaf spring 31 which is attached
2. When at the latter position, the tube
5'2 is turned end for end and the operation of the
switch is reversed. When the parts are disposed
as shown in full lines in Fig. 1, the switch 50 is
open. When the parts are arranged as shown in
full lines in Fig. 2, the switch is closed. When
the parts are moved to the position shown in
dotted lines in Fig. l, the switch is closed and
when moved to the position shown in dotted lines
in Fig. 2. the switch is open. Thus, it will become
readily comprehended that the switch may be
dotted-line position shown in Fig. 1 in which the
C1 switch 59 is in its corresponding dotted~line posi
tion and closed. It will be readily comprehended
train which is not shown in the drawings.
that as the gear 33 rotates, the finger 26 passes
The clock mechanism I1 further includes an
along the surface 35 of cam 3?. and ?nally enters
arbor 24 which is similar to the arbor of an alarm
the notch 35. When this occurs, lug 39 is with
clock used for timing the operation of the alarm.
drawn from engagement with the projection 51
This arbor is journaled in the frames 21 and 28
and the arm 46 operated through action of the
of the clock. mechanism l1 and protrudes out
weight 65 moves the switch from the one position
wardly from the rear wall I3 of the case i i, being
to the other.
provided with a knob 31 by means of which the
The switch 59 may be rotated about the axis of
same may be rotated. A suitable friction mech
anism, not shown, mounted on arbor 24, holds 15 the screw 49 by means of a shaft 58 having a
thumb piece 59 secured to the end of the same.
the same in position when manually set. Mount
This shaft is attached to a U-shapcd spring clip
ed on the end of the arbor 24 is a hub 25 which
3| similar to the clip 5| which extends over the
has attached to it a ?nger 26 extending out
clip 51 and operates in unison therewith. The
wardly therefrom. This ?nger is adapted to en—
shaft 58 extends through a slot 62 in the upper
gage a barrel cam 32 slidably mounted on the
to the frame 2‘! by means of a rivet
leaf spring is ?exed so as to urge the cam 32 to
ward the ?nger 26 and is provided at its end
with a lug 39 which projects through a suitable
opening 4| "in the frame 21 and extends into the
space between the two frames 21 and 28.
pinion 34 is of such length that the gear 33 may
slide axially relative to the same and cause the
said gear to remain at all times in mesh with
the teeth of said pinion. When the~cam 32 is ro
tated, and the ?nger 25 reaches the notch 36, said
cam slides axially on arbor 24 through the action
of the spring 31 and lug 39 is rapidly moved in a
direction towards the face of the clock. The time
at which such action takes place is controlled by
the position of the arbor 24 which is provided
at its outer end with a hand 42 movable with ref
erence to' a dial 43, formed on the front wall l2
of the clock.
The form of the invention shown in Fig. 1 com
prises a mounting indicated in its entirety by the
reference numeral 44. This mounting consists of
an arm 46 which is brazed or otherwise secured
to an arbor 41. The arbor 41 is journaled in the
frames 21’ and 28. A boss 48 extends upwardly
from the arm. 45 at the locality of the arbor 41
and is threaded to receive a screw 49.
The screw
49 passes through the base of a U-shaped spring
clip 51 which is rotatably mounted on said screw
moved so as to procure reversal in operation
thereof by rotating the same through an angle
of 180° about the axis of the screw 49.
To limit movement of the switch 59, a pin 53
is provided on the under side of the clip 5|. This
pin is adapted to engage either of two lugs 64
projecting outwardly from the hub 48. When the
switch is turned to either position, the pin 63 11m
its the movement of. the switch to either of its
operating positions. The disposition of the switch
55 can be indicated by constructing the thumb
piece 59 in the form of an arrow, as shown in Figs.
1 and 2, and by placing upon the upper wall 16
of the case suitable characters indicating the
function of the switch when the thumb piece 59
points in either direction.
The switch
after having been released by
the cioclr mechanism, must be manually reset.
For this purpose, the thumb piece 59 and the
shaft 58 are employed. Resetting occurs when
and which is frictionally held in position thereby.
The clip 5| receives and supports a mercury
‘switch 50. This switch includes a tube 52 of glass
or other suitable insulating material having con 60
the said shaft and thumb piece are moved from
tacts 53 and 54 at one end and a globule of mer~
when the lug 39 is in its innermost position, a
eury 55 movable from one end of the tube to the
other. When the switch 59 is tilted to the posi_
cam surface 56 is formed on the depending mem
ber 56 which engages the lug 35 and forces the
tion shown
away from
in full
in Fig.
53 1,and
and opens
spring 3'! outwardly, while the member 56 is c1ear~
ing said lug. By means of this construction, the
the switch. When the switch is tilted to the posi
tion shown in dotted lines in
1, the mercury
bridges across the contacts 53 and 54 and closes
the switch.
Attached to the under side of the arm 46 is a 70
depending member 55 which has a projection 51
extending angularly therefrom and adapted to
rest upon the lug 39 of spring 31 when the same
is in its innermost position. The lug 39 and
spring 31 serve as a. latching means which oper
the dotted-line positions shown in Figs. 1 and 2
to the full~line positions shown in said ?gures.
Inasmuch as such movement of the arm 45 occurs
switch can be reset after the ?nger 25 rides upon
the outer surface 35 of the cam 32.
As soon as
the cam 56 passes the lug 39, the said lug springs
back and release of the thumb piece 59 causes
weight 50 to again bring the projection 51 to
rest upon the lug 39.
The operation of the invention is as follows:
The contacts 53 and 54 are connected through
suitable ?exible leads ‘68 with the circuit with
which the switch is to be used. This may be ac
complished by means of suitable plugs, not
shown, or in any other desirable manner. If the
circuit is to be turned on at a particular time,
the thumb piece 59 is turned in the direction
shown in Fig. 1 and the shaft 5s moved toward
is omitted.‘ This mounting is directly attached
to the sleeve I12 by soldering or otherwise, as
indicated at I83. When the sleeve I12 is rotated,
switch I50 can be moved from the full-line posi
tion shown in Fig. 5 to the dotted-line position
in which the tube is moved end for end. Thus, it
will become apparent that the switch may be ar
the right, as shown in that ?gure, until the pro
jeotion 5T rests upon the lug 39 of spring 31.
The arbor 2% is now turned through the knob 3I
until the pointer 42 comes opposite the desired
time of day noted on the dial 43, at which the
switch is to be operated. When this time arrives,
?nger 26 on arbor 24 enters into notch 35 in
cam 32 and the said cam, through theaction of
ranged to either open or close upon release by
the clock mechanism. It will be noted that the
switch I53 is disposed exteriorly of the frame
528. To accommodate this arrangement of parts,
the case I II is made slightly wider than the case
I 5 shown in Figs. 1 to 4, inclusive.
For resetting the switch mechanism, a lever I 84
is employed which is attached to the arm I46 at
the locality of the arbor Id'l. This lever projects
upwardly through a slot E52 in the upper wall II 5
of case III and is provided with a knob I59 by
spring 31, is moved axially along arbor 24 toward
the face or front wall I2 of the case II of the
clock. This allows the lug 39 on spring 31 to
be withdrawn from engagement with the projec
tion 5'! and arm 45 through the action of weight
68 drops, swinging the mounting 44 to the left
and tilting the switch 58 until the mercury 55
in tube 52 reaches the contacts 53 and 54 and
bridges across the same.
means of which the same may be manipulated.
This lever and knob serve the same purpose as
the shaft 58 and thumb piece 5%} of the other form
of the invention.
The operation of the form of the invention
shown in Figs. 5 and 6 is similar to that previ
ously described. Reversal of operation of the
switch mechanism is procured through rotation
of the knob Ill‘ by changing the position of the
switch £53 from its full-line position shown in
Fig. 5 to its dotted-line position shown in the
The circuit is now com
pleted and the radio! or other appliance to be
actuated is energized. If it is desired to turn
off the radio or other appliance at a particular
time, the thumb piece 59 is turned toward the
left, as shown in Fig. 2 and the same procedure
adopted. The degree of rotation of mounting
44 is limited by the pin 63 when the same engages
the lugs 64.
,. same ?gure.
In Figs. 5 and 6, I have shown a modi?cation
The back II3 of case I II is provided
with suitable legend indicating the operation of
the switch, so that the operator may know by
of the invention. In this form of the invention,
the clock and actuating mechanism for the arbor
the position of the; pointer I‘!!! whether or not
the switch is arranged for opening or closing ac
supporting the switch is the same as that shown
in the other form of the invention and the de
scription thereof will not be repeated. The cor
responding parts in this form of the invention
tion upon release by the clockwork.
The advantages of my invention are manifest.
The device is extremely simple and can be con
are indicated by the same reference numerals as
structed at a nominal expense.
used for the parts of the form of the invention
By the use of a
mercury switch, the mechanism will operate con
previously described, except that the digit 1 has 40 tinuously
without interruption or failure. The
been pre?xed to such reference numbers.
same mechanism will serve to either open or close
In the form of the; invention shown in Figs. 5
the circuit as the operator desires. Suitable leg
and 6, the arbor I4‘! is journaled in the frames
end. marked on the case of the clock indicates
whether the device is set for opening or closing of
the circuit. The switch mechanism can be reset
I21 and I28, but has an extension I ‘II which pro
jects through the rear wall II3 of case III. On
this extension is rotatably mounted a sleeve I12
which has a ?ange I13 attached thereto and
at any time after the clock has run for a suitable
length of time beyond the time of the release
projecting outwardly therefrom. Mounted on
the extension I‘II adjacent the frame I28 is a
Changes in the speci?c form of my invention, as
hub I74 which is provided with a spring disk I15 50
herein described, may be made within the scope
adapted to bear against the ?ange I13. By
of what is claimed without departing from the
spirit of my invention.
means of this construction, friction is afforded
between the sleeve I12 and the extension I'll,
whereby said sleeve is supported in rotatably
adjusted position relative to the arbor I41. A
nut I16, screwed upon the end of the extension
I'll, engages the end of the sleeve I72 and urges
the ?ange I13 into engagement with the disk I15.
Having described my invention, what I claim
as new and desire to protect by Letters Patent is:
In a time controlled switch mechanism, a
mounting, means for pivoting said mounting for
A knob IT! is secured to the protruding end of
movement in opposite directions about a hori
zontal axis, a switch carried by the mounting and
of the parts carried by the sleeve will be known
from the exterior of the clock. The movement
of the sleeve I12 is limited by means of a lug I8I
direction and closing upon movement of the
mounting in the other direction and means for
changing the position of said switch from above
the sleeve I72 by means of a set screw I78 and M. disposed above the axis thereof and extending in
a substantially horizontal direction, said switch
serves to rotate the sleeve I72. This knob has a
opening upon movement of the mounting in one
pointer I79 on it by means of which the position
extending outwardly from flange I13 which is
adapted to engage either of two ears I82 formed
on the disk I75.
The mounting I44 for the tube I50 is identical
T the axis to a position below the axis to move the
switch end for end to reverse the operation of the
with that shown in Fig. 1, excepting that clip 6| 7 U
switch and time controlled means for controlling
the movement of the mounting.
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