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Патент USA US2114290

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April 39, 1938.
A. D. EITZEN
2,114,290
FLUID CONTROLLED TAPE FULLER
Original Filed'July 25, 1929
3 Sheets-Sheet l
fProQrjza_
5.341
INVENTOR
Apri? 19, 1938.
A. D. EITZEN
2,114,290
FLUID CONTROLLED TAPE FULLER
Original Filed July 25, 1929
21
3 Sheets-Sheet 2
12’
INVENTOR
BY WKD
ATTORNEY
Apri? 19, E9
A. D. ElTZ-EN >
2,114,290
FLUID CONTROLLED TAPE FULLER
Original Filed July 25, 1929
15 Sheets-Sheet 5
Projecfar
INVENTOR
ATTORNEY
2,114,290
Patented Apr. 19, 1938
UNITED STATES
PATENT OFFICE
2,114,290
FLUID CONTROLLED TAPE PULLER
August D. Eitzen, Rockville Centre, N. Y., assignor
to News Projection Corporation, New York,
N. Y., a corporation of New York
Application July 25, 1929, Serial No. 380,854
Renewed January 5, 1937
3 Claims. (Cl. 271-23)
My present invention relates generally to stock
ticker apparatus, and has particular reference to
a stock ticker projection machine, or the like
projection machine.
Ln
It is well known that a stock ticker, adapted
to discharge marked tape, operates in an irregu
lar manner depending upon the transactions re
corded thereby.
Accordingly, the marked tape
emanates from the stock ticker at constantly
varying rates of speed, and where this tape is de
signed to pass through a projecting device, it is
necessary to provide mechanism for drawing the
tape through the projecting device in a manner
which takes into account the varying rate of feed
15 into the projecting device.
It is a general object of my present invention
to provide a stock ticker and a projecting device
with automatically controlled mechanism for
drawing the tape through the projecting device
at substantially the same rate of speed as it is
fed thereto.
A particular object of my invention is to pro
vide an apparatus which does not have any re
course to electrical switches, relays, or similar
25 control devices and which is therefore devoid of
2O
all the di?iculties that might be caused by spark
ing, friction, etc.
A particular feature of my invention lies in the
provision of an apparatus which employs a fluid
30 medium for effecting the automatic control con
templated. Brie?y, I provide a fluid pump and a
?uid motor, cooperatively associated with each
other and with a tape-pulling mechanism so that
the latter will operate automatically, smoothly
35 and reliably at rates of speed substantially pro
portional to the rates of speed at which the
marked tape is caused to emanate from the stock
ticker.
Although my invention contemplates broadly
40 the employment of a fluid medium, certain ad
vantages are achieved by the use of a gas such as
air, for in such an event I am enabled to accom
plish an additional object appertaining to the
cooling of the interior of the projecting device.
45
In general, it is an object of my invention to
provide an apparatus which is simple in struc
tural nature, inexpensive from a manufactur
ing standpoint, and reliable in operation.
50
For the attainment of the foregoing objects and
such other objects as may hereinafter appear or
be pointed out, I have illustrated several forms of
my invention in the accompanying drawings, in
which-—
Figure l. is an elevational view partly in sec
55
tion of an assembly embodying ‘the features of
my invention;
Figure 2 is a plan View of Figure 1;
Figure 3 is a fragmentary cross-sectional view
taken substantially along the line 3—-3 of Fig
ure 2;
Figure 4 is a view similar to Figure 1 illus
trating a modi?cation; and
Figure 5 is a plan view of the apparatus of
Figure 4.
I have shown a data recording device, the
stock ticker l0, adapted to discharge a marked
tape H, the latter being fed, as at 12, into a
projecting device I3 and emanating from the lat
ter as at M. The projecting device may be of
usual construction embodying a main housing
within which illuminating means are provided
and a lateral housing through which the tape
passes and above which an objective lens H3 or
the like is adapted to throw or project the beam
of light upwardly onto a suitable screen. I have
also shown a tape-pulling and re-winding mecha
10
0
nism designated generally by the reference
numeral I6.
As the tape approaches the pulling mechanism
it passes under a guide roller ll, thence over a
pulling roller l8, thence beneath a guide roller
[9, and ?nally onto a mandrel or the like 26.
The mechanism presently to be described for ro
tating the pulling roller I8 serves by means of the
belt or thong 2! also to drive the mandrel 20,
whereby the tape II is not only kept taut but is
eiiiciently drawn onto and wound upon the man
drel 2!]. A spring-pressed guide roller 22 bears
upon the tape as it passes over the pulling roller 35
l8.
In accordance with my present invention, I
drive the pulling roller l8 by means of a fluid
motor 23, the shaft 24 of the latter carrying a
worm 25 which meshes with a worm wheel 26
mounted upon the pulling roller iii. In the illus
trated form, the motor 23 is a rotary one adapted
to operate by means of a gas such as air, the inlet
21 being axially positioned whereby the air passes
outwardly as shown most clearly in Figure 3
through suitable vanes or blades 28 so as to ro
tate the shaft 24. The exhaust or discharged
air or gas passes out through the outlet con
duit 29.
The air supplied to the motor 23 for driving 50'
the latter comes from a similar rotary fluid de
vice 30 which is constructed to operate as a pump
and which may, for example, be provided with
vanes such as those shown at 3|. This pump
is driven by means of an electric motor 32 or from 65
2
2,114,290
a similar source of power, and the air discharged
therefrom passes into a conduit 33 leading to the
inlet opening 21 of the ?uid motor.
The pump 38 is constantly driven and the auto
matic apparatus which I provide serves to control
the amount of ?uid transmitted from the pump
38 to the motor 23. I have illustratively shown a
butter?y valve 34 positioned within the conduit
33. The adjustments of this valve are auto
10 matically controlled by mechanism which oper
ates in timed relation to the discharge of tape
from the ticker Ill. Thus, a roller 35 bears by
gravity upon the tape ll as the latter emanates
from the ticker l0, this roller being carried on the
15 end of a control lever 36 pivoted at 3? to a ?xed
portion of the machine. A control rod 38 is piv
otally associated at 39 with a midportion of the
lever 36 and is pivotally associated at 40, at its
lower end, with a lever 4! attached to the valve
20 34. A counterweight 42 is preferably provided
so that a minimum amount of work need be ac—
complished by the rod 38.
The parts are so constructed and proportioned
that the valve 34 will be entirely shut when the
25 ticker ID has ceased to operate. Under these con
ditions, the nature of the pump 38 is such that
no breakage or damage will be caused since the
air or similar ?uid pumped thereby will simply
circle and flow around within the pump 30 itself.
30 As soon as the ticker l0 begins to discharge tape,
a slack is formed between the ticker Ill and the
projecting device l3, and the roller 35 will there
fore be caused to drop. This will lower the rod
38 and cause the valve 34 to open. As soon as this
35 occurs, air will be pumped through the conduit 33
to the motor 23, thereby causing the latter to
operate and to drive the tape-pulling mechanism.
The faster the ticker Ill discharges tape, the lower
the rod 38 will fall and the greater the valve 34
40 will open. Accordingly, the motor 23 will be
caused to operate at a varying rate which is pro
portional to the varying rate of discharge of tape
from the ticker Ill, and in this way the desired
smooth and reliable automatic operation is ac
45
complished.
Where air is employed as the medium, I cause
the conduit 29 to communicate with the interior
of the projecting device l3 so that the air dis
charged from the motor 23 will pass into the de
50 vice l3 and cool the latter.
After the tape ll leaves the roller 35, it will
pass under the friction ?nger F pivotally mount
ed on the projecting device 53 so that it may en
gage the tape ll at the entrance end of the light
55 aperture and press the tape into frictional en
liquid. The discharge outlet 55 of the motor
48 communicates with a return conduit 57 lead
ing to the pump 55. The latter may be driven by
means of an electric motor 58.
The conduit 53 is provided with a valve 53, as U!
previously described, in connection with the con
duit 33, and the adjustments of these valves are
controlled by mechanism similar to that pre
viously mentioned and including, for example,
the control rod 60.
10
The employment of liquid in this manner en
ables me to provide an entirely self-contained
system wherein it is only necessary from time to
time to replenish that small amount of liquid
which may be lost by possible leakage; and this
replenishment may advantageously be accom—
plished by means of a ?lling opening or the like
6!.
In both of the embodiments herein illustrated
and described, it will be obvious that the cost of 20
operation is extremely small, if not wholly negli
gible, since the ?uid medium is extremely ?ex
ible and inexpensive. At the same time, it is to
be noted that an e?icient automatic control is
provided, accomplishing highly desirable objects
heretofore achieved by mechanism far more com
plicated and expensive.
It will be obvious that changes in the details
herein described and illustrated for the purpose
of explaining the details of my invention may be
made by those skilled in the art without depart
ing from the spirit and scope of the invention as
expressed in the appended claims. It is there
fore intended that these details be interpreted
as illustrative and not in a limiting sense.
lustrated its use, what I claim as new and desire
to secure by Letters Patent is—
1. A tape drawing mechanism for drawing
marked tape across. the light aperture of a pro to
jecting machine having a tape pulling roller be
yond the discharge end of the light aperture,
and a control apparatus for the drawing mech
anism, said apparatus comprising a continuously
operating electric motor, supplying a predeter
mined power force, a rotary ?uid pump continu
ously driven by said motor at a predetermined
rate of speed, a rotary ?uid motor beyond the
discharge end of said light aperture operatively
connected to said pulling roller, a conduit ex 50
tending from said pump to said motor to supply
?uid and thereby pressure to said motor, and
means operable in timed relation to the supply
of tape to the light aperture for controlling the
?uid and thereby the pressure fed through said
conduit to said motor, said controlling means
gagement with the abutment A at the entrance
end of the light aperture. Since both the ?nger
F and roller 35 engage the upper face of the tape
ll, it will be seen that the roller 35 assists the
60 ?nger F materially to iron out the vibrations
transmitted to the tape by the ticker.
comprising a control lever, a roller carried by
the free end of said control lever and adapted
to rest on the tape and respond to de?ections in
In Figures 4 and 5 I have shown a modi?cation
wherein a liquid medium is employed. A ticker
43 discharges tape 44 which passes through a pro
65 jecting device 45 and thence through a tape-pull
control lever at the entrance end to the light
aperture, a second lever ?xed to the pivot point
of said valve and having two arms extending in
ing mechanism 46 onto a mandrel or similar re
winding mechanism 4?. A rotary motor adapted
to operate with liquid is shown at 48 and the
shaft 49 thereof carries a worm 58 which drives
70 the pulling and re-winding mechanism.
The
motor 48 may, for example, be provided with
vanes 5| as shown most clearly in Figure 5, and
the inlet 52 is provided at one end of a conduit
53 leading from the discharge end 54 of a rotary
75 pump 55 similarly constructed to operate with
to CI
Having thus described my invention and il
the tape at the entrance end to the light aper- ’
ture, a valve in said conduit disposed below said
opposite directions from said pivot point, a link "
connecting one of said arms with said control
lever, and a weight formed on the other arm of
said second lever.
2. A tape drawing mechanism for drawing
marked tape across the light aperture of a pro
jecting machine having a tape pulling roller be
yond the discharge end of the light aperture, and
a control apparatus for the drawing mechanism,
said apparatus comprising a continuously oper
ating electric motor, supplying a predetermined 75‘
3
2,114,290
power force, a rotary ?uid pump continuously
driven by said motor at a predetermined rate of
speed, a rotary ?uid motor beyond the discharge
end of said light aperture operatively connected
to said pulling roller, a conduit extending from
said pump to said ?uid motor to supply ?uid and
thereby pressure to said ?uid motor, and means
operable in timed relation to the supply of tape
to the light aperture for controlling the ?uid and
10 thereby the pressure fed through said conduit
to said ?uid motor, said controlling means com
prising a control lever adapted to engage the
tape and respond to de?ections in the tape, a
valve in said conduit to regulate the passage
15 therethrough, a second lever operatively connect
ed to said valve, and a link connecting said sec
ond lever with said control lever to position said
valve according to the de?ection in the tape.
3. A tape drawing mechanism for drawing
20 marked tape across the light aperture of a pro
jecting machine having a tape pulling roller, and
a control apparatus for the tape pulling roller,
said apparatus comprising a continuously operat
ing electric motor, supplying a predetermined
power force, a rotary air pump continuously driv
en by said electric motor at a predetermined rate
of speed, a rotary air motor operatively connected
to said pulling roller, a conduit extending from
said pump to said air motor to supply air and
thereby pressure to said air motor, and means
operable in timed relation to the supply of tape
to the light aperture for controlling the air and
thereby the pressure fed through said conduit 10
to said air motor, said controlling means com
prising a control lever adapted to engage the
tape and respond to de?ections in the tape, a
valve in said conduit to regulate the passage
therethrough, linkage operatively connecting said 15
valve with said control lever to position said valve
according to the de?ection in the tape, and a dis
charge conduit from said air motor to the pro
jecting machine for conducting the discharged
air to the projecting machine to ventilate the 20
same.
AUGUST D. EITZEN.
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