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Патент USA US3086360

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April 23, 1963
R. L. BOYLES
3,086,351
COMBINED SWITCH AND ALARM ACTUATING APPARATUS
Filed March 11, 1960
3 Sheets-Sheet 1
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April 23, 1963
3,086,351
R. L. BOYLES
COMBINED SWITCH AND ALARM ACTUATING APPARATUS
3 Sheets—Sheet 2
Filed March 11, 1960
1/764
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April 23, 1963
R. L. BOYLES'
3,086,351
COMBINED SWITCH AND ALARM ACTUATING APPARATUS
Filed March 11, 1960
5 Sheets-Sheet a
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United States Patent 0
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3,086,351
Patented Apr. 23, 1963
1
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3,086,351
tor of the clock by raising it away from its alarm sound
ing position. Also, a second lever is pivotally mounted
CDMBlNED SWiTCH AND ALARM ACTUATING
APPARATUS
Robert L. Boyies, Wayland, Mass, assignor to General
Electric Company, a corporation of New York
Filed Mar. 11, 196i), Ser. No. 14,262
7 Claims. (Cl. 58-38)
to open and close a switch of an auxiliary circuit when
the lever is pivoted between ?rst and second positions,
respectively. These two levers are in turn controlled by
a third pivotally mounted lever which has a portion there
of continuously engaging a rotatable cam that serves to
move this third lever to a ?rst and a second position se
This invention relates to alarm clocks of the type hav
quentially. A manually operable pushbutton type actu
ing switching means in combination therewith for con 10 ating member is provided to selectively connect the cam
trolling an auxiliary electric circuit and in particular re
to a timer for a predetermined time interval and simul
lates to apparatus for placing the alarm and the auxiliary
taneously to cause the ?rst and second lever to be pivoted
circuit switch under the control of a timer for a predeter
respectively to an alarm silencing and switch closing po
mined interval of ‘time so that these devices will be auto
sition. The rotatable cam then maintains the alarm si
matically operated at the expiration of this timed interval. 15 lencing and switch closing levers in this position until
It is found highly desirable in the manufacture of elec
the timer moves to a position indicative of the expiration
tric alarm clocks to incorporate a temporary shut-off
mechanism in the clocks that allows the user to silence
the alarm for a predetermined interval of time after the
alarm has once sounded to rouse the user from a sound 20
sleep. Such devices may be referred to as repeat alarms,
because the alarm is repeated after a short interval of
silence. Another feature that is often incorporated in
of the predetermined time interval at which time the cam
moves the third lever to its second position and thus
closes the switch and frees the alarm to sound.
Other objects and advantages of my invention will be
come apparent from the description that follows when
taken in conjunction with the drawings in which:
FIG. 1 is a front elevational view of an alarm clock
modern electric alarm clocks is the provision of an aux
pushbutton control mechanism which may be utilized to
iliary electric circuit controlled by a switch that can be 25 operate the component parts of my invention;
made responsive in its operation to a timer, which in turn
can be set for a predetermined interval of time. Frequent
ly such a switch is utilized to control an auxiliary circuit
that includes a radio, and since the timer can be manu
FIG. 2 is a partial front perspective view of the alarm
controlling components of my invention as shown in an
alarm sounding position;
FIG. 3 is a partial front perspective view of the alarm
ally adjusted to open the switch and thus tie-energize the 30 controlling component parts of my invention shown in
radio after a predetermined interval of time, during which
an alarm silencing position;
the user ordinarily desires to fall asleep, this type of
FIG. 4 is a detailed front elevation, partly in cross
switch mechanism is commonly referred to as a sleep
section, of the alarm controlling component parts of my
switch.
invention shown in FIG. 2;
Prior art devices utilize separate manually operable ac 35
FIG. 5 is a detailed front elevation of the alarm con~
tuating mechanisms to provide the repeat alarm and sleep
trolling component parts of my invention shown in the
switch functions discussed above. My invention main
position indicated in FIG. 3; and
tains the number of manual operating devices as a mini~
mum while at the same time providing a maximum num
FIG. 6 is a perspective view of an alarm clock, ex
ploded along the axis of its drive shafts, embodying my
ber of controlled functions which the clock may perform. 40 combined repeat alarm and sleep switch controlling de
The control means embodied in my invention are extreme
vice.
ly simple and the manually operable controls are primarily
- With reference to the drawings, particularly FIGS. 1
of the pushbutton type so the mode of operation is not
confusing to the user. With the control arrangement of
and 6, it will be seen that I have shown my combined
repeat
alarm and sleep switch control apparatus in com
my invention a single pushbutton controls selectively 45 bination with an electric alarm clock with a pushbutton
either a repeat alarm or a sleep switch. Also, the number
type control mechanism. The pushbutton control mecha
of working parts in my control means has been reduced
nism comprises the vertically reciprocable members or
to a minimum and the arrangement of these parts has
levers l, 2, 3, and 4 which have been labeled respectively
been improved to further reduce the chance of mechanical
50 “Sleep” or “Repeat,” “On,” “Auto,” and “Off,” because
failure of the apparatus.
Accordingly, it is a speci?c object of my invention to
provide a clock with a combination repeat alarm and
sleep switch control that is operated by a single manual
of the particular functions they perform in controlling
the clock mechanism as will be discussed in further de
tail below. A horizontally reciprocable latching bar 5 is
common to the vertically reciprocable members 2, 3 and
control.
4 ad is operable ‘to coordinate the relative movements
55
Another object of my invention is to provide a me
of these members 2, 3 and 4, as will be explained gen
chanically simple and relatively maintenance-free com
bination repeat alarm and sleep switch control that can
be operated by a simple pushbutton mechanism.
A still further object of my invention is to provide
a combination repeat alarm and sleep switch control ap
paratus that can be incorporated in various types of alarm
clocks currently in common use without requiring exten
sive modi?cation of the operating components of such
clocks.
erally below. Of the levers 1 through 4, only the “Sleep"
or “Repeat" lever 1 is used directly to operate the com
ponent parts of my combined repeat alarm and sleep
switch operating apparatus, therefore, a complete under‘
standing of the exact mode of operation of the remaining
buttons is not necessary to fully appreciate my invention.
However, following the general description of the com
ponent parts of the alarm clock, the broad function of
the buttons 2, 3 and 4 will be discussed to generally fa
An additional object of my invention is to provide a 65 miliarize the reader with the varied functions the clock
combination repeat alarm and sleep switch control em
and its associated circuits may be made to perform.
bodying means for varying either the duration of a snooze
Referring particularly to FIG. 6, the illustrated alarm
cycle in which the alarm is silenced, or the duration of a
clock generally comprises a self-starting synchronous elec
cycle in which the sleep switch is closed.
tric motor having an energizing ?eld 6 with terminals 7
Brie?y stated, in accordance with one embodiment of 70 thereon to alford means for connecting ?eld 6 to a source
my invention, I provide a ?rst lever pivotally mounted
of alternating current. The energizing ?eld 6 is wound
within an alarm clock and operable to silence the vibra
on a ?eld stator 8 that drives a self-starting synchronous
3,086,351
3
rotor (not shown) that is coupled through a gear reduc
tion chamber 9 to a rotatable geared shaft 10. The shaft
10 is connected in a conventional manner to the gear
train of the clock, and the operation of this gear train will
not be explained in detail, since it does not form an es
sential part of the subject invention. The basic compo
nents of the clock are a back plate 11, a front plate 12
the face of the clock (not shown). These operations
place the clock train in complete control of the alarm
vibrator arm 18 and the arm 18 will be freed at the pre
determined time to vibrate against the member 18a. To
silence the alarm permanently without a repeat alarm type
operation the user may depress either lever 2 or lever 4,
thus effecting a rotation of operating lever 13 to its alarm
silencing position, as described above, where tab 30 will
which supports the four pushbuttons 1 through 4, a main
raise vibrator arm 18 away from member 26. However,
operating lever 13, a latch lever 14, and time indicating
hands, namely, an hour hand 15, a minute hand 16, and 10 if the user only wishes to silence the alarm for a short
a second hand 17.
interval of time that will allow him a few more minutes
sleep but will then again sound the alarm, in accordance
with my invention he depresses the ‘*Sleep" or “Repeat”
lever 1. Since the particular function initiated by the
ber 18, the auxiliary circuit controlling switch comprising
a ?xed contact 19 and a resilient contact arm 20, the alarm 15 operation of the lever 1 forms the basis of my invention,
the operation of lever 1 will be discussed in more detail
controlling lever 21 which is pivotally mounted intermedi
later; however, at this point it should be understood that
ate its ends in any suitable manner on the back plate 11,
in addition to temporarily silencing the alarm, the lever
a pivotally mounted cam follower lever 22 that serves
1 acts ‘through the pivotally mounted lever 22 and the
to determine the position of alarm controlling lever 21 and
operating lever 13, a rotatably mounted cam 23 (see 20 operating lever 13, as well as member 28, to close the
switch 19-20 when lever 1 is depressed, as will be more
P16. 2. or FIG. 3) having a sector gear 24 that may
fully described below. Thus, by depressing the lever 1
be placed in engagement with a drive gear 25, as will
it is possible to close the switch 19‘-—20 for a predeter
be explained below. The drive gear 25 is connected
mined interval of time that is controlled by the clock
‘through a friction clutch 25a to a gear 26, and gear
25
train acting through ‘the cam 23 and rotatable sector
26 is maintained in continuous engagement with one
gear 24.
of the continuously rotated gears of the clock gear train.
The foregoing description should generally familiarize
Although an exact working knowledge of all of the
the
reader with the basic components and the general
component parts of the clock illustrated in FIG. 6 is not
mode
of operation of the well known parts of the clock
necessary to a complete understanding of my invention,
a general understanding of the broad functions performed 30 illustrated in the drawings, as well as conveying a gen
eral understanding of those component parts that relate
by the various component parts of the clock will be an aid
particularly to my combined repeat alarm and sleep switch
to understanding both the operation and advantages of
control device. I will now describe my combined repeat
my invention. Since the prime driving means for the
alarm and sleep switch control device in greater detail.
clock train is a self-starting synchronous electric motor,
In order to provide a single manually operable control
the clock train will be placed in motion to drive the
to afford both a repeat alarm or temporary alarm silencing
The parts of the clock which relate particularly to my
invention are the resiliently mounted alarm vibrator mem
time indicating hands 15, 16 and 17 as soon as the ?eld en
ergizing terminals 7 are connected to a source of alternat
function and a sleep switch or temporary switch closing
function, the lever 22 is pivotally mounted intermediate
ing current power.
its ends and provided with an arm that is operable to
Of course, the indicating hands 15 through 17 are
move both the alarm controlling lever 21 and the operat
40
intended to cooperate with the clock face plate (not
ing lever 13. In particular, the lever 22 is provided with
shown) that may be of any familiar design. In addition
a slot in which a tab on the end of lever 21 is loosely
to indicating the correct time, the two basic functions
positioned, while a bent tab on the end of lever 22 is dis
performed by the clock are to sound the alarm at predeter
posed to engage one end of the operating lever 13 when
mined times by allowing vibrator 18 to vibrate against
the tab end of the lever 22 is rotated downward. Of
the metallic member 185:, and to move the resilient switch
course, this particular con?guration is merely exemplary,
contact arm 20 toward or away from the ?xed contact
but I have found it very advantageous in that it allows
19 at predetermined times. The particular manner in
my
control mechanism to be readily adapted for use with
which the clock and my control apparatus are allowed
operating arm 13.
to perform these ‘two basic functions is controlled by the
If the user of the clock desires to utilize my invention
vertically reciprocable levers 1 through 4. In general, 50
to perform a sleep switch type function, that is, if he
the “On” lever 2 and the ‘Off’’ lever 4 afford a manual
desires to leave the switch 19—20 closed for a predeter
type of control of the auxiliary circuit control switch
mined time interval while he goes to sleep, he merely de
ISL-2t). In particular, when lever 2 is depressed, it moves
presses the “Sleep" or “Repeat" button 1 one or more
rod 27 downward and thus causes operating lever 13 to
55 times to set the rotate cam 23 for any one of three desired
pivot and allow insulating member 28 to move downward
predetermined time intervals, as will be more fully de
away from resilient switch arm 20 so that the resilience of
scribed.
When the
Referring particularly to FIGS. 2 through 5, it will be
“Off” lever 4 is depressed, it moves the rod 29 downward
seen that cam 23‘ is integral with sector gear 24 and gear
against the sloped surface of latch lever 14 and thus
rotates the lever 14 about its pivot. Since the operating 60 32. The gear 32 has a plurality of spaced teeth. These
teeth of gear 32 are positioned so ‘that they may be en
lever 13 is keyed to the same shaft as lever 14, the operat
gaged by the projection 33' formed on lever 33. As
ing lever 13 is raised as lever 14 pivots and thus raises
shown more particularly in FIGS. 2 and 3, lever 33 is
the member 28 against the biasing force of resilient con
pivoted at 33" to lever 1, and one end of spring 35 is
tact arm 20 and opens the switch contacts 19-—20. It
looped over tabs 1' and 33”’ formed on levers 1 and 33,
will be noted that operating lever 13 has a tab portion 30 65 respectively, for yielding holding the levers for move
which engages the vibrator arm 18 and retains it out of
ment as a unit but allowing lever 33 to rotate with respect
contact with the member 18a when the operating lever
to lever 1 as projection 33’ moves on the teeth of gear 32.
13 is moved upward to its alarm silencing position.
Therefore, each time lever 1 is depressed, projection 33'
In order to provide automatic control of the alarm vi 70 moves the sector gear 24 and cam 23 in a clockwise di
brator 18, the “Auto” lever 3 is depressed, and thus,
rection, as shown in FIGS. 2 and 3, a distance that is
arm 20 serves to close the switch contacts.
through the action of the horizontally reciprocable latch
ing bar 5, releases any of the other levers that may have
been previously depressed and latched in a depressed posi
tion. The pointer 31 is then manually rotated by any
suitable means to indicate a given predetermined time on
determined by the initial spacing between the respective
teeth of the gear 32. It will be seen by referring to FIGS.
4 and 5 that as the sector gear 24 is rotated by successive
ly depressing the lever 1, the sectors thereon will be
3,086,351
5
moved into engagement with the drive gear 25-. The fric
tion clutch 25:: between drive gear 25 and gear 26 allows
the gear 25 to be rotated by the clockwise movement of
6
be controlled by the positioning of alarm pointer 31 and
its associated timing disks; therefore, the repeat alarm
feature of my invention will only be brought into elfec
the gear 24 during the manual setting of the predeter
tive use after the alarm vibrator 18 has been freed to
mined time interval. The friction clutch 25a serves to
vibrate against the alarm member 13a by the operation
retain ‘the gear 25 and thus the gear 32 in position when
of the pointer 31 and its associated control disks, which
the lever 1 is returned to its uppermost position by a bias
cause the alarm restraining tab 30 on operating lever 13
ing spring. Therefore, it will be seen that any one of four
to be moved away from the vibrator arm 18 so that the
predetermined time intervals may be set on the combina
vibrator arm 18 is placed under the exclusive control
tion gear sector 24 and cam 23 by simply depressing the 10 of my repeat alarm control comprising the lever 21 and
lever 1 successively either one, two, three, or four times.
the lever 22. The sleep switch feature of my invention
The respective intervals of time may be determined by
initially forming the spacing between the adjacent teeth of
will only be brought into practical use when either “Auto”
pushbutton 3 or the “Oll" pushbutton is depressed to
gear 32 to a desired distance. Of course, the time inter—
val required for gear 25 to drive sector gear 24 back to
remove the controlling action of pushbutton lever 2 on
the position of the resilient switch arm 20. When the
“Auto” or “Oil” pushbuttons have ‘been depressed and
the “Sleep” or Repeat” lever 1 has been depressed one
its original position is dependent upon the rate of rotation
of gear 25 and this in turn depends on what particular
gear of the clock train the gear 26 is placed in engagement
or more times to set a predetermined time interval on
with; however, these are design parameters that may be
the timer of my combined control unit, the switch 19-—20
readily resolved by one skilled in the art so no further 20 is closed in the manner described above and will be
discussion will be given of them at this point.
automatically opened after the expiration of the prede
It will be seen by referring particularly to FIGS. 4 and
termined time interval by the upward or clockwise move
5 that when the gear 32 and its associated cam 23, are
ment of operating lever 13 when it is released by the
rotated, the projecting pin 34 on member 22 is forced to
counterclockwise rotation of the lever 22 as described
slide toward the periphery of cam 23 out of the depressed 25 above.
portion of the cam surface. This movement of the pin
The operation of my combined repeat alarm and sleep
34 causes the lever 22 to be rotated in a clockwise direc
switch control apparatus, which provides both a repeat
tion (as shown in FIGS. 2 through 5) about its pivotal
alarm and a sleep switch operating function under the
mounting and this motion of the lever 22 in turn pivots
control of a single manually operated pushbutton type
lever 21 in a counter-clockwise direction causing the tab
of switch, will be apparent from the description given
21' on the end of lever 21 to raise the vibrator arm 18
above.
from a ?rst or normal position to a second operating or
While I have shown and described a particular em
alarm silencing position. Also, the clockwise movement
bodiment of my combined repeat alarm and sleep switch
of the lever 22 brings this lever into engagement with one
control apparatus, it ‘will be obvious to those skilled in
end of the operating lever 13 if this lever is in its upper
the art that various modi?cations may be made without
most position or switch opening position at the time, and
departing from my invention in its broader aspects.
thus causes the lever 13 to be rotated in a counterclock
Therefore, I intend in the following appended claims to
wise direction to its second or operating position (as
encompass all such modi?cations as fall within the true
shown in FIG. 6) thereby to lower the member 28 away
scope of my invention.
40
from its uppermost position and thus allow the resilient
What I claim is:
contact arm 20 to close the switch 19-20.
l. A clock having a timer comprising a rotatably
The timer of my combined repeat alarm and sleep
mounted cam and integral sector gear, a drive gear en
switch controlling apparatus, which comprises the gear 25
gageable with said sector gear and a friction clutch for
and its associated slip clutch, and the integral gears 24
and 32 as well as the integral cam 23, will commence its
timing function immediately after the manually operated
drivingly connecting the drive gear to the clock train,
45 in combination with an alarm, an electric circuit con
trolling switch, a ?rst pivotally mounted lever for con
lever 1 is released and returned to its uppermost position
trolling the operation of said alarm, a second pivotally
by its biasing spring 35. It will, therefore, ‘be apparent
mounted lever for controlling the operation of said switch,
that the gear 26 will drive the gear 25 through the friction
a third pivotally mounted lever for controlling the re
clutch 25a in a clockwise direction as shown in FIGS. 4
60 spective positions of the ?rst and second levers, said
and 5 and, thus, effect a counterclockwise rotation of the
third lever having a projection disposed to slidably en
gear 24 and its associated cam 23. This rotation of the
cam 23 causes the depressed portion of the cam surface to
gage the rotatable cam, said cam being formed to move
the projection and its associated lever sequentially from
be moved under the pin 34 on lever 22 ‘after the expira
a ?rst to a second position when said cam is rotated,
tion of the predetermined time interval. Several forces 55 means for manually rotating the cam to a predetermined
then operate to rotate the lever 22 in a counterclockwise
position indicative of a preset time interval whereby
direction to force the pin 34 into its recessed position on
the ?rst, second and third levers are moved respectively
the cam 23. In particular, the resilient vibrator arm 18
to alarm silencing and switch closing ‘positions, said cam
exerts such a biasing force through the lever 21, and the
retaining said levers in their respective alarm silencing
operating lever 13 is biased by a spring, as mentioned 60 and switch closing positions until the timer has moved
above, to effect a rotation thereof in a clockwise direction.
the cam to a position indicative of the expiration of the
Also, an auxiliary spring (not shown) is utilized to bias
preset time interval such that the projection on the
the lever 22 in a counterclockwise direction of rotation to
third lever moves to its second position and thereby frees
insure the correct positioning of the pin 34 on cam 23 at
the ?rst and second lever to move the alarm to its sound
all times.
65 ing position and the switch to an open position, whereby
It will ‘be seen that when the lever 22 is pivoted in a
a single manually operable means and single timer is
counterclockwise direction as the pin 34 slides into the
utilized to control for both the alarm and the switch
depressed portion of cam 23, the lever 21 will be freed
for a predetermined time interval.
and, thus, will free the alarm vibrator 18 so that it may
2. A clock having a timer operable to measure pre
move to its alarm sounding position if not otherwise re 70 determined time intervals, an alarm, a switch, a ?rst lever
strained. Also, the operating lever 13 is freed so that
for controlling the operation of said alarm, a second lever
it may return to its uppermost or switch opening posi
for operating said switch, a rotatable cam, said timer
tion if it is not otherwise restrained. As described above
embodying means to rotate said cam for selected pre
during the general description of the clock and its as
determined time intervals, a third lever pivotally mount
sociated control buttons, the alarm vibrator 18 may also 75 ed to engage said cam, said cam being effective when
7
rotated to pivot said third lever sequentially to ?rst and
second positions, said third lever being disposed to move
said ?rst and second levers to alarm silencing and switch
closing positions respectively when the cam moves said
third lever through its ?rst position, said ?rst and second
levers being disposed to move to alarm sounding and
switch opening positions respectively, and said third lever
having means to free said ?rst and second levers to move
53
on position and the switch operating lever is held in the
switch open position and an operating position in which
the vibrator shut oil lever is held in its alarm off posi
tion and the switch operating lever is held in its switch
closed position, manual means for simultaneously moving
said control element from said normal position to said
operating position to close the switch and to prevent the
alarm from sounding, and automatic means movable as
a function of time by said timer for returning said pivoted
positions when said third lever is moved to its second 10 control element to said normal position at the end of a
predetermined time interval to simultaneously permit the
position by said cam, whereby the timer is operable to
alarm to sound and to open the switch.
control the operation of both the alarm and the switch.
6. A clock having a timer operable to measure prede
3. In combination with a clock including an electric
termined time intervals, an alarm vibrator arm, a vibrator
drive motor, a gear train, and a magnetizable alarm vi
shut off lever having an alarm on position out of engage
brator disposed in inductive relation with said motor, a
ment with said vibrator arm and an alarm off position in
rotatable cam selectively connectable through a friction
engagement with said arm, a switch, a switch operating
clutch to said gear train, a manually operable means to
lever having a switch open and a switch closed position, a
place said cam in driven relation to said gear train for a
pivoted control lever having a slot formed in one end
predetermined time interval, a ?rst lever pivotally
thereof for receiving an end of said vibrator shut off lever
mounted intermediate its ends and having a portion and a projection formed thereon for engaging the switch
thereof in sliding engagement with said cam whereby rota
operating lever, said pivoted control lever having a normal
tion of the cam sequentially pivots said pivotal lever to
position in which the vibrator shut off lever is held in its
?rst and second positions, a second lever pivotally
alarm on position and the switch operating lever is held
mounted intermediate its ends and having a ?rst portion
thereof disposed to engage the ?rst lever and be moved 25 in the switch open position, and an operating position in
which the vibrator shut off lever is ‘held in its alarm off
thereby and having a second portion disposed to engage
respectively to said alarm sounding and switch opening
the alarm vibrator, said second lever being rotatable to
silence and free said vibrator respectively when the ?rst
position and the switch operating lever is held in the switch
closed position, manual means for moving said control
lever from said normal position to said operating position
lever is moved to its ?rst and second positions respec
tively, a third lever pivotally mounted intermediate its 30 to close the switch and prevent the alarm from sound
ing, and automatic means movable as a function of time
ends and having a ?rst portion disposed to engage the
by said timer for returning said pivoted control lever to
?rst lever and be moved thereby and having a second por
said normal position at the end of a predetermined time
tion connected to said switch to close and open the switch
interval to permit the alarm to sound and to open the
when the ?rst lever is moved to its ?rst and second posi
switch.
tions respectively, whereby the ?rst and second levers are
7. In an alarm clock comprising a supporting structure,
moved to alarm silencing and switch closing positions
respectively when the manually operable means is moved
an alarm mechanism having a resilient vibrator arm, an
to place the cam in driven relation to the clock gear train
electric alarm circuit including a switch, a timing mecha
interval for which it was set.
4. A clock having a timer operable to control both an
alarm to be operated at a predetermined time and a
switch to be closed for a predetermined time interval, an
mined short-time interval comprising, a control means in
nism, a release mechanism operated by said timing mecha
for a predetermined time interval, and the ?rst and second
nism for sounding said alarm at a pre-set time, the im
40
levers are moved to alarm sounding and switch closing
provement comprising manually actuated means for shut
positions respectively when the timer moves to a position
ting off the alarm and closing the switch ‘for a predeter
indicative of the expiration of the predetermined time
alarm shutoff lever, a control element controlling the posi
tion of said shutoff lever and the switch, said control ele
ment having a normal position in which the shuto? lever
does not restrain the alarm and the switch is permitted
to be in an open position and an operating position in
which the control element closes the switch and prevents
the alarm from sounding, manual means for moving said
control element from said normal position to said operat
ing position to close the switch and prevent the alarm
from sounding, and automatic means movable as a func
tion of time by said timer for returning said control ele
ment to said normal position at the end of a predetermined
time interval to permit the alarm to sound and to open
60
the switch.
5. A clock having a timer operable to measure prede
termined time intervals, an alarm vibrator arm, a vibrator
shut off lever having an alarm on position out of engage
ment with said vibrator arm and an alarm off position
in engagement with said arm, a switch, a switch oper
ating lever having a switch open and a switch closed
position, a pivoted control tlever having a normal position
in which the vibrator shut-off lever is held in its alarm
terconnected with said release mechanism, a pivotally
mounted sector gear for moving said control means, said
sector gear being normally spaced from said timing means,
a vertically reciprocatory push button lever slidably
mounted on said supporting structure, and a cam projec
tion formed on said push button lever for pivoting said sec
tor gear to simultaneously connect the gear to said timing
mechanism and move said control means to temporarily
shut o?? the alarm and close the switch, said sector gear
cooperating with said control means to hold said vibrator
arm in the alarm off position ‘and said switch in a closed
position for a predetermined short interval.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,244,924
2,421,986
Thorson ______________ __ June 10, 1941
Bohman ______________ __ June 10, 1947
2,444,748
2,721,441
2,768,332
Parissi ________________ __ July 6, 1948
Boyles _______________ __ Oct. 25, 1955
Protzmann et a1. ______ __ Oct. 23, 1956
2,920,438
2,997,433
Phaneuf ______________ __ Jan. 12, 1960
Bciser et a1. __________ __ Mar. 28, 1961
2,994,183
2,996,874
Dimond et al ___________ __ Aug. 1, 1961
Chartier et a1. ________ __ Aug. 22, 1961
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