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Патент USA US3078665

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Feb. 26, 1963
Filed Feb. 29, 1960
2 Sheets-Sheet l
Nicholas J. Hlckly
Feb. 26, 1963
Filed Feb. 29, 1960
2 Sheets-Sheet 2
Nicholas J.'HickIy
Patented Feb. 26, 1953
dldT'i‘lil‘siG MEANS Eli}! A CLOCK QR LEKE
Nicholas J. Hicldy, Whitehall, Pa, assignor to Pennwood
Numec'nron (Iempany, Fittshurgh, Pa., in corporation
of Peunsyivauia
Filed Feb. 29, 196i), Ser. No. 11,631}
2 lllaims. (Cl. 58-26)
This invention is for a clock or similar mechanism,
and is for a multiple dial direct—reading clock or like
mechanism in which the numerals indicating increments
of time or motion are read directly from left to right on
the peripheries of a series of dials.
in Greenawalt Patent No. 1,990,645 dated February 12,
1935, there is disclosed a direct-reading ciock having a
succession of dials with numerals on the periphery, and
each revolution of a dial at the right-hand side of the
ing some of the dials, and wherein there are selectively
operable means for independently setting each dial.
A further object or" my invention is to provide a simple
and unique clock or counting mechanism.
These and other objects and advantages are secured
by my invention which may be more fully understood
by reference to the accompanying drawings, in which:
FEG. 1 is a top plan view of a mechanism embodying
my invention, the usual housing or casing being omitted;
FIG. 2 is a front elevation of the mechanism shown in
FIG. 1;
FIG. 3 is a transverse vertical section in the plane of
line Ill-41E of FIG. 1; and
FIG. 4 is a schematic wiring diagram showing one
wiring circuit for the apparatus.
In the drawings, 2 designates a base ‘having an upright
support 3 secured thereto near one end thereof. Carried
on one face of this support is a synchronous motor of
the type commonly used in electric clocks, and which,
series moves the next dial to the left one increment, and 20 together with a reducing gear, is encased in a housing.
when that dial in turn rotates one revolution, the next
The motor and gear assembly is designated 4. There is
dial is moved one increment. In this mechanism the
a shaft 5 driven by the motor which passes through the
right-hand dial has ten faces with each face bearing a
upright 3, and it has an eccentric cam 6 on its outer end.
numeral, the numerals reading from O to 9. The next
There is a second upright support 7 on the base near
dial has six faces with numerals reading from 0 to 5.
the other end. There is a ?xed shaft 8 mounted in the
The last dial to the left has twelve faces reading from
supports 3 and '7. Loose on the shaft 8 for independent
1 to 12. The transmission of motion from one dial to
rotation is a series of similar dials or drums 9, 9a and
another is dependent, among other things, on the fact that
9b. Each drum has a central hub portion 10 through
the dials are of different diameters so that a motion
which the shaft 8 is passed, a web portion 11 and a rim
transmitting projection on one dial moves in an are that is 30 12 which is wider than the web. The rim 12 is pref
not concentric with the element of the adjacent dial to
erably of polygonal contour with a number of equal ?at
which it transmits movement.
faces on which numbers are printed. The dials or drums
This mechanism is entirely satisfactory for a simple
are desirably molded of plastic, and while they are shown
twelve-hour clock. However, it is unsatisfactory for a
as being polygonal, they might just as well be cylindrical.
twenty-four hour clock, for example, since the hour dial
Projecting from one edge of each dial is a series of
cannot well be much larger in diameter than the corre
equally-spaced pins 13 that may be of metal molded into
sponding dial of a twelve-hour clock. Therefore, to
the plastic, and vone pin is located at each corner of the
provide numbers reading from 1 to 24, the numerals are
polygon. A spring 14 is shown around the shaft 8 be
crowded and small as compared to the numerals on \the
tween the upright 7 and the hub of the dial 9b for yield
minute dials. Again, in some industrial applications, a 40 ably urging this dial toward the right, and since the hub
continuous record running into hundreds of hours may
of one dial contacts that of an adjacent dial, this pressure
be desirable, and a mechanism like that shown in the
is transmitted to all of the dials.
Greenawalt patent is unsuited for such purpose. Also,
There is a bracket 15 secured to the base back of the
for purposes where counting is to be done in intervals
45 dials. It has a foot portion 15a secured to the base, a
say for example ten or ?fteen-second intervals-a mech
vertical web 15]), and a rearwardly-projecting top ?ange
anism as shown in the Greenawalt patent is unsuitable.
15c. Mounted on the top of ?ange 150 is a series of for
There are, of course, clock-type mechanisms, like odom
wardly-projecting arms 16. Each arm 16 supports a
eters, where the dials are connected through gearing, and
micro-switch of similar construction, the number of micro
each dial to the left moves one-tenth of a rotation with 50 switches being equal to the number of dials, and they are
each full revolution of the next dial to the right. Such
positively-geared devices lack ?exibility for many opera
tions or locations.
designated 17, 17a and 17b.
Micro-switch 17 is located in a position to be operated
by the rotation of earn 6. Dial 9 has a pin 13 projecting
With a gear train type of movement, resetting gener
from its periphery, so that once each revolution it engages
ally requires some operation of turning the dials ahead 55 micro-switch 17a. Dial 9a has a similar pin 18a on its
until they all read zero. This is often a relatively slow
periphery to engage and trip micro-switch 17b. While
procedure, or it may not always be desirable. For ex
I have shown three dials and three micro-switches, there
ample, in traveling west, one may want to change to an
may be many more, the number of switches correspond
earlier time zone, say from 3:45 to 2:45. It is awkward
ing to the number of dials, and each dial would have
to turn all of the dials ahead to zero and then advance 60 a switch-tripping element or pin or cam similar to 18,
them to 2:45. Various other situations arise where in
except the last dial to the left, where it is not needed.
dependent movements of the dials may be desirable.
Secured to the under side of the bracket ?ange 150
The present invention has for its principal object to
are several solenoids corresponding in number to the num
provide a clock or similar mechanism having multiple
ber of dials or drums, there being one solenoid to the
dials, in which each dial has its own electromagnetic 65 rear of each drum. These are designated 19, 19a and
means for rotating it.
1%, corresponding to drums 9, "9a and 912 respectively.
A further object of my invention is to provide a multi
Each solenoid has an armature 20 to which is attached
ple dial clock or counter in which a predetermined travel
a horizontal bar 21, preferably of aluminum or plastic,
of one dial sends an electric impulse to- energize the elec
to reduce weight. One bar extends forwardly from each
tromagnetic means for rotating a succeeding dial.
70 solenoid armature along the edge of one of the drums,
A further object of my invention is to provide a multi
the bar being of a width to have a working clearance be
ple dial clock with an electromagnetic means ‘for rotat
tween two pins 13 on the edge of the dial which it oper~
ates, and in its normal extended position this engagement
of two pins of each dial with the upp'en'and'lower ‘edges
of the bar holds the dial against free rotation or over
37 through the solenoid 19 to the current supply lines 30
travel. The bar has a downwardly and forwardly-extend
ing portion 237at its ‘outer end with a horizontal‘ extension
2_4‘ forming its outermost portion.“ Each portion 24 has
past micro-switch 17a, an impulse is sent through solenoid
19a to rotate dial 9a one increment. Likewise, when pin
1811 on dial 9av moves past ‘micro-switch 17b, an impulse
and 31. Therefore each‘ revolution of cam 6 'rotates'drum
9 through one increment. When pin 18 on this dial moves
is sent through solenoid 19b to rotatedial 9b through ‘one
one end ‘ofaitension'spr'ing 25 ‘attached thereto, the other
end of each spring being anchored‘ to a ?xed post 26
secured to the base, there being one anchor'post 26 for
Three push-buttons 37a, 40a and 45a are shown in the
each bar 21. The springs serve to yieldably resist move; 10 base in FIG. 1 for separately operating the switches 37,
40 and 45. Byvpushing down on any button an impulse
mentgofthe armatures on which they, are carried ‘to their
may be sent through the Tselected'switch through the shunt
retracted ‘positions,’ ‘and to return the bars 22 to their
normal extended position. '
circuit to a selected‘ solenoid to rotate a selected drum, but
since the normally closed contacts of the several switches
are in series, the circuit, to the left of the push-button so
operated is opened, so that the movement of one dial then
tion'ed that ‘as ‘the bar 21‘moves to the right as viewed in
is ineffective to'move any other dial. Thus the position
FIG. 3 under the in?uence of the solenoid, such surface
or setting of'ea'ch dial may be'effected without changing
stfikes'that pin '13 which is immediately under the bar,
any other dial. By pushing the selected button a number
tending to rotate the drum in a‘ clockwise direction. 'The
bar Zlhas a groove 22a'transver'sely acrossthat face of 20 of times ‘in succession, a selected dial may be rotated
through a corresponding number of increments.
the bar whichconfronts the pin-carryingedge of thedrum.
' There is ‘provided therefore a multiple dialiclock, or
The groove ‘22a’ is'generally of chevron-like shape, with
The'downwardly and forwardly-sloping edge of the bar
is cut awayto provide a camming surface 2311 so p'osi
counting mechanism in which each dial is independently‘
moved by anelectric impulse generated by the motion of a
reversely-sloping edges 22b and 220 at the forward edge
of the ‘groove. ‘ Before the bar moves to the rightisu?i
ciently for the edge 23a to start moving the under pin
down, ‘the bar'will have moved ‘to aopointz where the pinat:
ratio of movement of one dial to another may be varied‘
by changing the number of, pins 18 on any one dial. For
the'top edge of thevbar is over the slot, so thatthe disk
example, if on dial, 9 there were two pins lslocated 180°
may ‘rotate in a clockwise direction as camrning surface
230, movinggto the right, exertsdownward pressure onthe
lower of'the two pins in question; When the solenoid
preceding dial, with, no gearing between dials,’ and the
apart, dial 941 could rotate two increments for each rota
30 tionof dial 9, insteadof only one. If a clock is to measure
armature has completed its stroke to'th‘e ‘right, the upper,’
?fteen-second intervals instead‘ of sixty~second intervals,
p‘in'will have moved in an arc to the‘ point marked 22'
it can readily be made to count such intervals. ' Also, in-'
stead of the cam 6 being turned by a synchronous motor,
inv the groove. " Then, ‘as the bar 21 moves to the left
any other driving means may besubstituted to count rev
under the action of the spring 25,'inclined camming sur
face 22b will‘ engage this upper pin,‘ now‘ moved halfway
35 o'lutions or cycles instead of abstract time.
While I have shown‘ a mechanism having but three
down the slot, completing one full increment of movement
of‘ the ‘dia1,"'andv the parts will again be in the position
drums or dials, there may be provided any desired num
shown in FIG. 3‘. 'Thus the ?rst half'of an increment of
ber within practical limits, ‘and while all dials'are here
rotation’is effected by the retracting'movement of the bar
22, andithe s'econd‘half by the return movement, and each
drum'v‘is positively' locked against free rotation or'over
shown as being of the same size, they may be of different
sizes, as3 in the-aforesaid Greenawalt patent, for example.vv
By having push-button switches with normally closed con-"
tacts in series and the normally open contact shunted
around the ‘micro-switch for the‘ drum which it‘ governs,
any dial may be selectively‘ moved or set without affect-V
In FIG. 4 I have shown a Wiring diagram for the ap
paratus in ‘whichjlines 30 and 31 arecurrent' supply lines‘.
The'motor is designated 4, and is connectedacross these
ing any other dial.
lines. A. branch line 32 from line'p30 isconnected to one
While I have shown and described one speci?c em
side of each solenoid, whichar‘e herealso designated 19,
bodiment of my invention, it should be understood that.
this is by way of illustration and that various changes
19a and 19b. From each solenoid there isya wire 33 lead
and modi?cations may be made in the construction of the
Wire '34'leads from switch 17 'to wire 35 to one contact 50 apparatus within the contemplation of my invention.‘
36 of a‘two-contact push-button switch 37. The switch
1,. A clock mechanism comprising, a series of dials
37 is‘biased to normally close a circuit with contact 36.
mounted for independent rotation in side-by-side relation,
The switch 37 may be pushed down to engage contact 38
a series of electromagnets corresponding in number to the
and open the circuit to contact 36. Switch 37 is connected
through wire 39 to the other line wire 31. Contact 38 is 55 number of dials with one magnet for serving each dial,
ing‘to the respective micro-switches ‘17, 17a and 17b;
I claim:
connected to wire'39‘that shunts around the vmicro-switch
17 to‘wire 33.
' Wire ‘35 also connects to a‘ similar push-button switch
the magnets being supported alongside the dials, each
magnet having an armature movable back and forth with
relation to_the dial which it serves, the armature being
moved in one direction by the magnet and having a spring
40 having two contacts 41 and 42. The switch is biased
to normally close a circuit to contact 41, and’ this contact 60 for moving it in the opposite direction, cooperating means
on each armatureand the dial which it serves for moving
is connectedv to a wire 43; Wire 44 connects the micro
said dial through a predetermined arc with each cycle of
switch 17a to wire 43, and there is a shunt circuit around
movement of the armature and restraining it against move
the micro-switch provided from contact 42 to wire 33.
ment greater than said predetermined arc and inde
Wire 43 is connected to ‘a third double contact push;
pendently of the actuation of said armature, means for in
button switch 45 having contacts 46 and 47, and the switch
termittently energizing the electromagnet at one end of
is biased to normally close a circuit through contact 46
the series to effect a cycle of movement of the armature
with wire 48.’ Branch wire 49 connects 48 with micro
thereof, said dial and each succeeding one in the series
switch 17b. A shunt circuit 50 is provided around micro
except the one at the opposite end of the series having'a
switch 17b from contact 47. to wire 33 for the thirdjsole
noid. This arrangement may be repeated for as many 70 switch-operating element thereon, a switch for each suc
ceeding electromag'nct after‘ the ?rst positioned to be en
dials, asv may be used, andis not restricted to the three
gaged by the switch operating means of the preceding dial
which are shown.
during a selected cycle of movement of said preceding
Inoperation, rotation, of thereccentric cam 6 momen
dial, a circuit forpeach switch and the electromagnet which
tarilytcloses micro-switch 17, closing‘a circuit through the
micro¢switch and, the normally closed push-button switch 75 itoperates whereby each rotation of the ?rst dial mo
Inentarily closes the switch and circuit for the electro
cam surface thereon positioned radially of the dial inward
of the groove, whereby the movement of said operating
magnet for the next dial to move its armature through a
full cycle and each dial in turn similarly energizes the
member by the electromagnet ?rst brings that pin at the
electromagnet for the next-succeeding dial, each circuit
including a push button switch for selectively rotating each
dial manually while de-energizing the circuits for any suc
ceeding electromagnet in the order of their operational
upper edge of said member over the groove to thereby
sequence in the series.
2. A clock mechanism of the class described compris
ing a dial, means for rotatably supporting the dial, the
dial having a rim with a series of equally-spaced pins ex
tending therefrom in a direction parallel with the axis of
rotation of the dial, an electromagnet adjacent the dial,
an armature for the electromagnet reciprocated in one
permit the pin to enter the V-shaped groove, after which
the inclined cam surface engages the pin below said mem
ber to push it down and thereby effect the ?rst part of the
full predetermined increment of movement of the dial and
a wall of the V~shaped groove exerts a further camnting
action on the upper pin when the operating member is
pulled back by the spring to advance said upper pin to the
point previously occupied by the lower pin and a succeed
ing pin on said dial is then in the original position of the
?rst-mentioned upper pin.
direction by energizing the magnet, a spring for etfecting 15
References Cited in the tile of this patent
return movement of the armature when the electromagnet
is deenergized, an operating member connected to the
armature and extending radially between two pins on said
Thrasher ____________ __ May 20,
periphery of the dial and of a width to normally restrain
Flint ________________ __ Sept. 26,
the dial from rotation, said operating member having a 20 2,072,457
Larrabee ______________ __ Mar. 2,
rectangular bar the width of which is such as to have a
Stack _______________ __ Get. 31,
working ?t between two pins and which has a substan
tially V-shaped transverse groove in the face thereof that
Britain _________ __ Mar. 15,
confronts the dial and a downwardly-extending inclined
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