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Патент USA US2120809

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June 14, 1938.
Filed NOV. 9, 1937
4 Sheets-Sheet 1V '
Jacob matlow
June 14, 1938.
momma cawemsm ELECTRIC sum
Filed Nov. 9, 1937
4 Sheets-Sheet 2
Jae 0b ma Z'Zow
M (land-W ‘V ‘Mid-1'
June 14, 1938.
Filed Nov. 9. 1957
4 Sheets-Sheet 3 Y
Jacob Jl’laflow
June 14, 1938.
Filed Nov. 9, 1937
4 Sheets-Sheet 4
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\Il .
Jacob ‘Ma/flow
M W \v
Patented June 14, 1938
Jacob Matlow, Brooklyn, N. Y.
Application November 9, 1937, Serial No. 173,573
9 Claims. (CI. 40-52)
This invention relates to signs and particularly
to an improved movable changeable electric sign,
an object of the invention being to provide a
construction which will present a picture or other
attractive means adjacent a movable sign struc
Another object of the invention is to provide
a sign construction having an endless sign belt
adapted to be moved uniformly or intermittently
in connection with a slide having a picture there
on adapted to be moved into and out of view as
the sign belt travels.
A further object is to provide a sign belt and
attractive structure associated therewith, to—
gether with means for producing a sound con
tinuously or intermittently to attract attention
to the sign structure.
An additional and more speci?c object is to
provide an electric sign having an endless belt
formed with means for removably receiving
20 letters or other sign indicia.
In the accompanying drawings-—
Figure 1 is a front elevation of a movable
changeable electric sign disclosing an embodi
ment of the invention;
Figure 2 is a vertical sectional view through
the structure shown in Figure 1, the section be
ing taken on the line 2-2 of Figure 3;
Figure 3 is a sectional view through Figure 4,
approximately on the line 3—-3;
Figure 4 is a transverse sectional view through
Figure 3, approximately on the line 4-4;
Figure 5 is a fragmentary view showing part
of the belt illustrated in Figure 2;
Figure 6 is a section through Figure 5 ap
35 proximately on the line 6-4;
Figure 7 is a fragmentary sectional view
through Figure 3 on the line '|-—~'l;
Figure 8 is a diagram showing the Wiring of the
various parts of the sign;
Figure 9 is a fragmentary view showing an
intermediate drive embodying certain features
of the invention.
Referring to the accompanying drawings by
45 numerals, i indicates a casing or housing of any
kind, which may be wood or other suitable ma
terial, and in which is housed the various mov
able parts of the device except the hammer 2
of the sound-producing device or vibrator 3. This
50 hammer 2, as shown in Figure 2, is adapted to
strike the window I! in which the device is placed
though it could be made to strike some other
particle without departing from the spirit of
the invention.
It will be understood that this
65 soundeproducing device is caused to function
either continuously or intermittently as may be
The housing I is providedwith a front door 5
which may be hinged or otherwise secured in
place and which is formed with a glass panel 6
which at the top and bottom is provided with a
coating of paint at diiferent places to make the
same opaque, but the glass 6 itself is transparent
and, as shown in Figures 1 and 2, the portions
1 and 8 are left uncovered so that an object may
be seen therethroughv
The portions 9 and Ill,
however, are covered with paint or other opaque
substance. By reason of the fact that the por
tions 1 and B and also the portion ii are not
covered, windows are presented through which
the sign l2 of the belt 13 may be seen, and also
windows are presented through which the re
spective ?gures ill and i5 are visible. As shown
in Figure 1 of the drawings, the ?gures l4 and I5
represent parts of a man with his hand pointing
upwardly, but these ?gures or members could
represent other things without departing from
the spirit of‘ the invention.
As hereinafter fully described these pictures or
?gures are moved into and out of view as the de- 2
vice functions so as to attract the eye of a
It will be seen from Figure 2 that the
belt l3 is an endless belt and has one or more
signs 12 thereon which are brought to View from
time to time as the device functions. If de
sired, an electrically actuated clock It could be 0
arranged centrally of and above the housing I.
A hooded lamp I’! is arranged immediately above
the clock so as to illuminate the same.
the clock 16 is preferably electrically actuated it 3
may be a spring-actuated clock without depart
ing from the spirit of the invention.
As shown in Figures 2 and 3, the endless sign
belt [.3 is mounted on four rollers, namely, l8,
l9, 2!], and 2|. The rollers 2E! and 2! are ?xed but 40
freely rotate and, in fact, are driven by an end
less sprocket chain 22. Suitable sprocket wheels
23 are rigidly secured to the respective rollers
and, therefore, whenever the chain 22 functions
all of the rollers will move or rotate in the same
direction and at the same speed. The chain 22
passes over a small sprocket wheel 23 near the
lower end of the device, said small sprocket wheel
being rigidly secured to a stub shaft 25'. An idler
25 is adjustably mounted by reason of a slide 21
and screw 28. This permits an adjustment of
the tension of the chain whenever desired.
The rollers 20 and 2! as mentioned are ?xed
but the rollers l8 and it are vertically adjust
able as illustrated more particularly in Figures 55
3 and 7. From these ?gures it will be seen that
the rollers l8 and I9 are rotatably mounted
on bars 29 secured to vertical sliding blocks 39
and 3|. A bar 32 is connected with the housing
I by suitable screws
or other desirable means.
This bar carries a right angle bracket 34 and the
bar 29 carries a similar right angle bracket 35.
An adjusting screw 36 has a reduced end 91
rotatably mounted in the bracket 35 while it is
10 threaded through the bracket 34 and locked in
desired adjusted position by a suitable nut 38.
Angle bars 39 and 40 are also pivotally mounted
at 4| and 42 on the bar 29. These angle bars are
adapted to swing over to the position shown in
15 Figures 3 and 7 so as to prevent longitudinal
movement of the rollers I 8 and l9. It will be
observed that the pins 43 of the respective roll
ers I8 and I9 extend into suitable apertures in
the bar 29 and can not move to the right, as
shown in Figure 3, by reason of the housing I.
However, there is provided a socket 44 at the
left so as to permit a left-hand sliding move
ment of the rollers when the angle bars 39 and
40 are moved out of engagement. This is to al
25 low the rollers to be applied or removed.
The lower rollers 20 and 2| are likewise pro
the outer end of shaft 56 is journaled in the
upper end of a bracket 6|, while the lower part
of bracket 95 acts as a journal support for the
shaft 69. A small bevel gear 62 is rigidly se
cured to the upper end of shaft 69 and contin
uously meshes with a larger bevel gear 63 which
is rigidly secured to shaft 25.
By the construc
tion just described the shaft 25 is rotated at a
comparatively slow speed even though the mo»
tor 55 operates at a comparatively high speed. 10
As the gear 5! is larger than the gear pinion 59,
the pinion will operate at a higher speed than
shaft 25 though sprocket 24 will operate at the
same speed as shaft 25' and, therefore, will con
tinually move the belt l9 when the motor 55 is 15
functioning. However, from Figure 9 it will be
seen that a slightly modi?ed construction is
used wherein the gear 5i secured to shaft 25 is
a mutilated gear and has comparatively few
teeth 64 which upon each revolution engage and 20
move the gear wheel 59’, thus producing an in
termittent movement of the gear wheel 59’ and
an intermittent movement of the sprocket chain.
Immediately back of the front transparent
plate 6 there is provided a slide 65 which is 25
formed with a plate 66, which may be formed of
vided with pins 45 extending into bores in the
supporting plate 46. At the opposite end re
spective pins 45' extend into the supporting plate
4'! and may be slid into the bore 48 when it is
glass, celluloid, or other transparent material
and which is preferably translucent but provided
with opaque sections 61 and 68. These opaque
desired to remove the lower rollers. Each of the
lower rollers at one end is provided with angle
bars 49 which are identical with the angle bars
39 and 4B and which function in the same way.
When it is desired to apply and remove the belt
l3, the angle bars are swung to an inoperative
position and then the rollers are slid to the
left, as shown in Figure 3. This will allow the
rollers to be removed if desired and the belt
applied or removed and then the rollers re
may be formed by paint applied to the glass.
Referring to the lower part of Figures 2, 3,
and 4, it will be seen that the driving shaft 25
has a large gear 5! rigidly secured thereto. This
gear is continuously in mesh with a small pin
ion 59 rigidly secured to the shaft 25’. The
gear 5| is provided with a number of pins 53
which extend at right angles to the surface of
the gear wheel and which preferably are even
ly distributed though they could be unevenly
distributed. The parts are so proportioned and
positioned that as the pins 53 rotate with gear
wheel 5| they will successively engage and press
downwardly the button 54. This button is an
ordinary push button similar to a front door but
ton now in common use, and acts to close the
circuit to the buzzer or sound-producing device
3. Current from any supply line of 110 volts en~~
ters the device and some of the current is trans
60 formed by a transformer 56 so that the current
supplied to the buzzer 3 will have the voltage
greatly reduced. The current entering the de
vice, however, is supplied at full voltage to the
electric motor 55 and this motor is caused to
sections may be anv integral part of the glass or 30
This leaves clear or translucent sections for the
pictures l4 and 15. When the parts are in the
position shown in Figure 4, the pictures l4 and
55 are in alignment with the transparent sec 35
tions 1 and 8 of plate 6 so that the pictures may
be readily seen especially when the lamp 69 is
functioning. This lamp is turned on when the
slide 65 moves to the position shown in Figure 4,
and is turned off when the slide moves to the left 40
as hereinafter described. It will therefore be
seen that whenever the pictures are exposed to
view, lamp 69 will function to provide the desired
Slide 65 is provided with a pair of upstanding
pins 10 and ‘H which form, in a certain sense, a
bifurcated projection in which a pin 12 slides.
This pin is rigidly secured to a lever 13, which
lever is pivotally mounted at 14. The upper end
of the lever, as shown in Figure 4, is provided 50
with an insulated contact 15 adapted to be moved
into and out of engagement with an insulated
contact 16. When these contacts are engaged
lamp 69 will be supplied with current but when
the parts are moved to the dotted position in 55
Figure 4 the lamp 69 will be deprived of current.
A pin l‘! is connected with lever 13 and extends
into the cam groove 18 of a cam 19.
This cam
groove is provided with two dwells 89 and two
shifts 8!. The cam 19 is rigidly secured to the
shaft 25 and rotates therewith. When the pin
1'! is passing through either of the dwells 89
the slide 55 is stationary.
The parts are so po
sitioned that the pin Tl will be passing through
function at a certain speed whereby the power
shaft 56 will be rotated as long as the motor 55
is supplied with current. A worm 5'! is rigidly
secured to the shaft 56 and continuously meshes
with a worm wheel 58. These two members are
a dwell when the parts are in the position shown
in Figure 4 and will also be passing through a
dwell when the parts are moved to the dotted
position shown in Figure 4. It will therefore be
preferably arranged in a housing 59 which is
quickly to one extreme position and will stay in 70
that extreme position for a short time and will
supplied with oil or grease so that these parts
will function in the lubricant. A shaft 69 ex
tends through the housing 59 and is rigidly se
cured to the worm wheel 58 so as to be rotated
From Figure 3 it will be noted that
seen that the lever 13 will be swung rather
then quickly swing to the opposite extreme posi—
tion and remain in that opposite extreme position
for an appreciable time.
This action is con
tinued as long as the device is functioning.
Referring more particularly to the belt I3, it is
to be understood that the same may be made
from silk, cellulose matter, or other material
without departing from the spirit of the inven
tion. However, this belt is preferably substan
tially transparent and is formed of two strips
of material l3’ and I3" with lines 52 for indi
cating spaces in which the slides 52' are adapted
to be placed when in use.
The slides 52' are
10 preferably made of the same kind of material as
belt I3 and are adapted to receive the legend
plates 52” before the slides are inserted into
the belt. The strips l3’ and I3" are secured
together along one longitudinal edge by a ?exible
binding member l3'”. Usually the plates 52”
carry letters or numerals but they could carry
other legends and even pictures without depart
ing from the spirit of the invention. Also these
plates may be made from the same material as
the belt or from some other material and be
either opaque or translucent. However, these
plates are preferably made from transparent ma
terial which is somewhat resilient so that they
will readily pass around the various rollers dur
25 ing the functioning of the device. There is pro
vided a continuous illuminated lamp 82 substan
tially centrally within the travel of the belt l3
so that the letters or other con?gurations car
ried by the plate will be illuminated and they
30 will readily be seen during the day or night.
Preferably a number of the plates 52” are mount
ed in a carrier or slide of transparent material
and this carrier inserted between the two strips
l3’ and I3".
In Figure 8 will be seen a diagram showing
the various wires used in the device. The wires
33 and 84 are lead-in or supply wires which
will be of the usual voltage used in the particu
lar locality where the device is mounted. Usu
40 ally the supply of voltage is 110 and, conse
quently, the lamps 69 and 82 are made to re
ceive this current. The clock l6 and lamp I‘!
are also made‘to receive this current as well as
the motor 55. However, the buzzer 3 is pro
vided with the transformer 56 so that the current
used in this device will be greatly reduced, as,
for instance, reduced to six volts. The wires
and 86 supply current at full voltage to the
transformer 56, while the wires 81 and 88 fur
nish current at reduced voltage to the buzzer 3.
The wires 89 and 9!] supply current to the clock
i5 and lamp ll, while wires 9| and 92 supply
current to lamp 69 whenever the switch formed
by contacts 15 and 16 is closed. The constantly
burning lamp 82 is connected with wires 83 and
fill and has a hand-operated switch 93 to open
and close this circuit, while the motor 55 is sup
plied with a switch 94'- to connect and discon
nect the motor with the supply wires 83 and 84.
When the device is functioning it will be seen
that the parts of the device using the current
will be continuously supplied with current except lamp 6.‘! which is intermittently supplied
65 with current as the lever '13 swings back and
I claim:
1. In a sign of the character described, a slide
having a frame, means on the slide presenting
sign members, a bifurcated structure extending
from said frame, a pin sliding in said bifurcated
structure, a swinging lever for moving said pin,
bifurcated structure and said slide back and
forth, a cam actuating said lever for causing said
75 slide to dwell after each movement, and means
for continually moving said cam when the sign
is in operation.
2. In a sign of the character described, a slide
having sign members thereon, a bifurcated struc
ture extending from said frame, a lever pivotally
mounted near one end, an insulated contact car
ried by said one end, a stationary contact po
sitioned to be engaged by the first mentioned
contact when the lever is in one of its extreme
positions, a lamp, a circuit for said lamp includ 10
ing a source of current and said contacts, a pin
extending from the other end of said lever to
a position within said bifurcated structure, and
power actuated cam means for swinging said le
ver back and forth.
3. In a sign, an endless belt having sign mem
bers thereon, a plurality of rollers for support
ing and moving said belt, a sprocket wheel se~
cured to each roller, a single chain passing over
all of said sprocket wheels, a driving sprocket 20
engaging said chain, a shaft for rotating said
driving sprocket, a bevel gear rigidly secured to
said shaft, a bevel pinion continually meshing
with said bevel gear, a worm wheel rigidly se
cured to said bevel pinion, a worm continually 25
meshing with said worm wheel, and an electric
motor for driving said worm.
4. In a sign, an endless belt carrying sign
members, means for moving said belt, said means
including an endless sprocket chain, a driving 30
sprocket for causing said chain tov function, a
shaft for driving said driving sprocket, a pinion
rigidly secured to said shaft, a large gear mesh
ing with said pinion, a plurality of pins arranged
in a circle and carried by said large gear, an 35
electric switch positioned to be engaged and
mechanically closed by said pins as they suc
cessively pass said switch, a buzzer, an electric
circuit including said buzzer and said switch,
and electrically actuated means for rotating said 40
5. In a sign, a housing having a window pro
vided with a transparent pane of glass, means
for making said pane of glass opaque except for
a strip near the top and two spaced areas near 45
the bottom, an endless sign structure near the
top of said housing, attention-arresting mem
bers near the bottom of said housing, and coacting means for causing said endless sign struc
ture to move in back of said strip and said 50
attention-arresting members to intermittently
move into and out of said spaced areas.
6. In a sign, a housing having a window, an
endless sign structure positioned in said hous
ing in back of said window, a plurality of rollers 55
for supporting and moving said sign structure,
hand adjustable means for holding said rollers
against longitudinal movement, and means for
driving all of said rollers simultaneously.
7. In a sign, a casing having a top window and
a bottom window, a movable endless sign~carrying
belt arranged opposite said top window, rotat
able means for supporting said belt, means in
cluding a chain for rotating said rotatable means
whereby said belt is adapted to move, a display 65
device, means for moving said display device in
line with said bottom window and then to one
side of said bottom window, means including a
driving shaft for actuating the means for mov
ing said display device and said chain, an elec
trically actuated noise-maker, and means actu
ated by said shaft for intermittently closing the
circuit of said electrically actuated noise-maker.
8. In a sign, a casing having a top window and
a bottom window, a traveling belt having signs
thereon positioned in said casing so as to move
connecting the outer end of said lever with said
9. In a sign of the character described, an end
less belt of substantially transparent flexible ma
terial, said belt being formed of inner and outer
members, means for securing said members to
gether along one longitudinal edge, means
sliding sign, the movement of said lever being
such that as it functions it will move said slid
stantially from one longitudinal edge to the
past said top Window, a sliding sign member, a
driving shaft, a cam rotated by said shaft, a
swinging lever actuated by said cam, means for
forming spaced guiding lines extending sub
ing sign in line with said bottom Window and
other, ?exible slides arranged between said inner
then to one side of the bottom window so as to
and outer members positioned between the re
spective guiding lines, each of said slides having 10
intermittently bring said sliding sign into view,
and means including a plurality of sprocket
Wheels and a sprocket chain for moving said
traveling ‘belt, one of said sprocket Wheels being
geared to said shaft so that the traveling belt
will move in timed relation to said sliding sign.
turned-over edges, and ?exible legend-carrying
plates positioned on said slides With their re
spective ends extending beneath the respective
turned-over edges of the slides.
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