US2045536A

US2045536A - Tape drawing device

Info

Publication number: US2045536A
Application number: US329026A
Authority: US
Inventors: August D Eitzen
Original assignee: NEWS PROJECTION CORP
Current assignee: NEWS PROJECTION Corp
Priority date: 1928-12-28
Filing date: 1928-12-28
Publication date: 1936-06-23
Anticipated expiration: 1953-06-23

Description

June 23, 1936.

A. D. EITZEN 2,045,536

TAPE DRAWING DEVICE Filed Dec. 28, 1928 INVENTOR ATTORNEY Patented June 23, 1936 UNITED STATES PATENT OFFICE TAPE DRAWING DEVICE August D. Eitzen, New York, N. Y., assignor to News Projection Corporation, New York, N. Y., a corporation of New York.

Application December 28, 1928, Serial No. 329,026 14 Claims. (01. 178-42) ing tape through the projector of stock quotation projecting machines according to which a continuously driven electric motor may be used, and a device whereby the tape drawing roller may be disconnected from driving connection'with the electric motor. a

It is still another object of the present invention to provide in combination with a stock quotation projecting machine, a magnetically controlled brake for disconnecting the tape drawing roller from driving connection with the electric motor when the ticker has finished a message,

and ceases to operate.

These and other features, capabilities and advantages of the invention will appear from the subjoined detail description of specific embodiments thereof, illustrated in the accompanying drawing in which Figure 1 shows diagrammatically an embodiment of the invention in which the electric impulses of the ticker are relied upon to initiate the tape drawing action;

Fig. 2 is an elevation partly in section showing the magnetically controlled brake; and- Fig. 3 illustrates diagrammatically-a portion of another embodiment in which the slack formed in the tape is utilized to initiate the tape drawing action.

With the present invention, the tape T after leaving the ticker is causedto pass through a projector or projecting machine. This movement of the tape after it leaves the ticker is controlled by a tape drawing device which is initiated in 40 the embodiment illustrated in Fig. 1 by the electric impulses passing through the ticker when it transmits a message.

In the embodiment illustrated in Fig. l, the ticker i is provided with a plurality of magnets 2, 3, 4 and 5. The magnets 2 and 3 are connected to the connection plug 6 representing the source of telegraphic impulses by means of the electric conductor 1, which electric connection 6 is connected to the ticker switch 8 by the electric conductor 9. The other end of the magnets 2 and 3 is conneected by the conductor III to the electric connection II which is connected by the conductor I2 to one end of the magnets ti and 3. The other end of the magnets 4 and 6 is con: nected by the conductor I3 to the electric connection I 4 which is connected to the outlet plug I5 by the electric conductor I6, which outlet plus I5 is connected to the switch 6 by the electric conductor I I. The electric connections 6 and I4 are connected to the magnet I8 by the electric 5 conductors I9 and 20 respectively. The electric magnet l8 and associated connections are provided to control the switch 2i of the magnetically controlled brake band 22.

When an electric impulse is transmitted to 10 the ticker I, the same will energize the magnet I8 to attract the armature arm 23 pivotally mounted on the bracket 24. Fixedly secured to the armature arm 23 and insulated therefrom is the electric contact member 25 which is adapt- 5 ed to engage the electric contact member 26. The electric contact member 25 is connected to the outlet plug 21 by the electric conductor 28, which outlet plug 21 is connected to the magnet 29 by the electric conductor 30, and the contact 20 member 26 is connected to the magnet 29 by the electric conductor 3!. I

When the armature arm 23 is attracted by the magnet I8 and the contact member 25 engages the contact 26, the magnet 29 will be energized 5 to attract the core 32. The upper end of the core 32 is pivotally connected to the long arm 33 of the lever 34 which is fulcrumed at 35 on the bracket 36. The lever 34 is provided with a pin 31 to which one end of the brake band 22 3 is connected. The other end of the brake band 22 is connected to the pin 38 formed on the bracket 36. The lever 34 is also provided with a short arm 39 which is connected by the spring 40 to the ear iI formed on the bracket 36 nor- 35 mally to actuate the lever 34 to cause the brake band 22 frictionally to engage the drum 42 to produce a braking action.

When the magnet 29 is energized and the core 32 is-attracted, it will actuate the lever 34 about 40 its fulcrum 35 in opposition to the tension of the spring 40 to release the brake band 22 from the brake drum 42, thereby permitting the brake drum 42. and associated drawing roller 43 formed thereon to be driven with the clutch disc 44 fixed 45 on the shaft 45 on which the drum 42 and roller 33 are freely mounted. a

The tape T is maintained in engagement with the drawing roller 43 by the pressure roller II3 mounted on a lever 43* which has connected thereto the spring 43 for urging the pressure roller 43*- into engagement with the tape T and thereby frictionally maintaining the tape T in engagement with the roller 43.

sThe shait .45, as shown in Fig.1, has secured 1 thereon the wormwheel 46 meshing with the worm 41 enclosed in the housing 48. The worm 41 is mounted on the shaft 49 which has secured thereon the pulley 50 which is connected to the pulley 5! by the belt 52, The pulley 5| is connected to the motor shaft 53 of the motor 54. The motor 54, in the present instance, is shown as connected to the outlet plug 55 by the conductor 56 and to the resistance 51 by the conductor 58, which resistance 51 is connected to the outlet plug 55 by the conductor 59.

The brake drum 42 and drawing roller 43 are resiliently maintained in engagement with the clutch disc 44 by means of the spring 60 mounted on the shaft 45 and pressing the collar 6| against the inner face of the roller 43, thereby causing the outer face of the brake drum 42 to be pressed against the clutch disc 44 adjacent thereto. For controlling thetension of the spring 60, the nut 62, screw-threadedly mounted on the end of the shaft 45, is provided. 5

The shaft 45, as shown in Fig. 2, constitutes the fulcrum for the arm 63, which is fixedly connected to the bracket 36 and base 64 on which the magnet 29 is mounted. The free end of the base 64 is connected by the spring 65 with the upper end of the bracket 66 and by the spring 61 with the base 68, these

springs

65 and 61 forming cushions for the base 64 to ease the start and stop of the tape T. When the magnet 29 is deenergized and the spring 40 acts on the lever 34 to initiate the braking action, the spring will act as a buffer or cushion to cause the tape to come torest gently.

In order to prevent the switch 2| being interrupted during the transmission of a message, there is provided a device for retarding the release of the armature 23 from the magnet l8.

.To this end, there is provided an arm 69 extending from the armature 23 which is pivotally connected-at its free end to the upper end of the plunger 10. The lower end of the plunger 10 has secured thereto the piston 1| which is slideably mounted in the cylinder I2. The lower end of the cylinder 12 is connected to the upper end of the cylinder 12 by the passage I3. The piston II is provided with a passage 14 which, in the present instance, has a check valve 15 at its lower end.

' The cylinder 12 is supplied with oil.

The arm 69 is connected by thespring 16 with ral attraction of the contact 25 to the contact 26 while current is passing through the same, the check valve 15 will prevent the movement of the oil from the lower end of the cylinder 12 to the upper end of the cylinder l3 through the passage 14 and cause the oil to pass from the lower end of the cylinder 12 into the upper end of the cylinder 12 through the restricted passage 13, thereby materially retarding the separation of the contact 25 from the contact 26, and at any rate sufficiently retarding the same to prevent the same being separated in the interval between successive impulses of the ticker during the transmission of a single message.

The movement of the oil through the passage 13 can be regulated by means of the set screw 18.

In the embodiment illustrated in Fig. 3, the tape T issues from the ticker l as described with regard to the embodiment of Fig. 1 but before passing to the projector 19 is engaged by the roller from which the tape passes to the idler 8|. The roller 80 is formed at the upper end of the link 82 which is connected to the support 83 of the mercury switch 84. The base 83 is fulcrumed at 85 to the'bracket 86. One terminal of the mercury switch 84 is connected'by the conductor 81 tothe outlet plug 88, which outlet plug 88 is connected by the conductor 89 to the magnet 29 shown in the embodiment of Fig. l, and the other terminal of the mercury switch 84 is connected through the

conductors

88 and 90 to the magnet 29, energize the magnet 29 and thereby operate the lever 34, to release the brake drum 42 in the manner described with regard to the embodiment of Fig. 1.

On the other hand, when the ticker stops and the tape drawing roller 43 continues to draw the tape through the projector 19, it will take up the slack in the tape T eventually causing the link 82 to ascend and cause the mercury switch 84 to break contact, and thus shut off current to the magnet 28, whereupon the spring 46 will be free again to cause the brake band 22 to lock the brake drum 42 against movement with the clutch disc It is obvious that various changes and modifications may be made to the details of construction without departing from the general spirit of the invention as set forth in the appended claims.

I claim:

1. The combination with a. ticker and a circuit therefor, of a tape drawing roller, a pressure roller for frictionally maintaining the tape in engagement with said drawing roller, a continuously operating electric motor, a clutch for drivingly connecting the motor with said tape drawing roller, a magnetic device for controlling said clutch, and an electric switch for controlling said magnetic device, said electric switch being operatively controlled by said ticker circuit.

2. The combination with a ticker, of a cirnetic device to cause said magnetic device to be energized when said switch makes contact. 3. The combination with a ticker, of a circuit for said ticker, a tape drawing device including a tape drawing roller and a pressure roller for frictionally maintaining the tape in \draw'ing engagement with said roller, an actuating device, a clutch for drivingly connecting said actuating device to said tape drawing roller, and means operatively'controlled by said ticker circuit for controlling said clutch.

4. The combination with a ticker, of a circuit for said ticker, a tape drawing device including a tape drawing roller and a pressure roller for frictionally maintaining the tape in drawing engagement with said roller, an actuating device, a clutch for drivingly connecting said actuating device to drive said tape drawing roller, and magnetic controlling means controlled by said ticker circuit for controlling said clutch.

5. The combination with a ticker, of a circuit for said ticker, a tape drawing device including a tape drawing roller and a pressure roller for fric tionally maintaining the tape in drawing engagement with said roller, an actuating device, a

clutch for drivingly connecting said actuating device todrive said tape drawing roller, magnetic controlling means controlled by said ticker circuit for controlling said clutch, and means cooperating with said magnetic controlling means to facilitate the gradual stopping of the tape drawing device and in turn the gradual acceleration of the tape drawing device.

6. The combination witha ticker, of a circuit for said ticker, a tape drawing roller, a brake drum associated with said roller and adapted to anchor said roller against movement, an actuating device, a frictional clutch for operatively connecting said actuating device to said brake drum, a brake band for said brake drum normally adapted to anchor said brake drum and therewith said roller against movement by said actuating device, and magnetic means for releasing said brake' band operatively connected to said ticker circuit to be dependent for its action upon the stopping and starting of said ticker.

7. The combination with a ticker, of a circuit for said ticker, a tape drawing device including a tape drawing roller and a pressure roller for frictionally maintaining the tape in drawing engagement with said roller, anactuating device, a clutch for drivingly connecting said actuating device to drive said tape drawing roller, magnetic controlling means for controlling said clutch, an electric .switch for controlling said magnetic controlling means, a switch controlling device, and electric conductors operatively connecting said switch controlling device with said ticker circuit in turn to control said magnetic controlling device.

8. The combination with a ticker, of a circuit for said ticker, .a tape drawing device including a tape drawing roller and a pressure roller for frictionally maintaining the tape in engagement with said roller, an actuating device, a clutch' for drivingly connecting said actuating device to drive said tape drawing roller, magnetic controlling means for controlling said clutch, an

, electric switch for controlling said magnetic controlling means, a magnet associated with said ticker circuit for controlling said switch, a slow motion device for retarding the separation of said electric switch when once closed, and electric conductors for electrically connecting said switch to said magnetic controlling means.

9. The combination with a ticker, of tape drawing means, an electric motor, a clutch for operatively connecting said motor to drive said tape drawing means, an electric switch, a relay tuate said switch to make contact when said ticker operates, and a magnetic device for controlling said clutch, said switch being electrically connected to said magnetic device to cause said magnetic device to be energized when said switch makes contact.

10. The combination with a ticker and a circuit therefor, of a tape drawing means, means for controlling the actuation of said tape drawing means including an electric switch, means including said ticker circuit for closing said switch when a message is transmitted to said ticker to close said ticker circuit, and retarding means for delaying the opening of said switch for an inoperatively associated with said ticker to acterval after the current to the ticker circuit is switch when a message. is transmitted to saidticker to close said ticker circuit, and means for delaying the opening of' said switch for an interval of time after it has once been closed.

12. The combination with a ticker, of a tape drawing device including a tape drawing roller and a pressure roller for frictionally maintaining the tape in drawing engagement with said roller, an actuating device, a clutch for drivingly connecting said actuating device to drive said tape drawing roller, magnetic controlling means for controlling said clutch, and an electric switch operatively associatedwith said ticker to be affected according as said ticker is arrested or in operation, said switch being electrically connected to said magnetic device to cause said magnetic device to be energized when said switch makes contact,

13. The combination with a ticker, of tape ing device, a clutch for operatively connecting said actuating device to drive said tape drawing means, and an electromagnet circuit including an electric switch for controlling said clutch,.said

switch including a fixed contact and a movable contact, the movable contact being operatively associated with said ticker to be actuated according as said ticker is arrested or in operation.

AUGUST D. EITZEN.