US1666308A - Mechanism for controlling the tension of ticker tape - Google Patents

Description

April 17, 1928.

B. A. PROCTOR MECHANISM FOR CONTROLLING THE TENSION OF TIOKER TAPE Filed March 4, 1926 s Sheets-Sheet l I .w W n a 54/20/1 /7. Practar.

April 17, 1928. 1,666,308

B. A. PROCTOR MECHANISM FOR CONTROLLING THE TENSION OF TICKER TAPE Filed March 4, 1926 5 Sheets-Sheet 2 Swventoz Barton A Hroc tor.

65 1; hi a l-fowl 00 April 17, 1928.

B. A. PROCTOR MECHANISM FOR CONTROLLING THE TENSION OF TICKER TAPE Filed March 4. 192 6 3 Sheets-Sheet 3 am-uewfoz Barton A. Proctor. S1 hi5 mil? 6w MOW Patented Apr. 17, 1928.

PATENT oFFicE.

BARTON PROCTOB, OI F NEW YORK, N. POBATION, OF NEW YORK, N. Y

' mncnmsm ron. con'rnonmn'e I Application filed March This invention relates to-news projecting machines in general, and more especially to mechanism for controlling the feedof news projecting tape.

Among the objects of the present invention, it is aimed, to provide a new combination having a rewind roll, a driving mechanism for the rewind roll, a clutch for'connecting the rewind roll with the driving mechanism, and means, controlled by the tension of the tape, for anchoring the rewind roll against actuation by said driving mechanism.

It is also an object of the present invention, to provide an improved combination whereby the jump transmitted to the tape by the starting and stopping of the ticker mechanism may be absorbed and prevented from being transmitted to the portion of the tape located in projecting position, and whereby a rewind roll for winding up the tape after projection may be controlled by the jump absorbing mechanism to stop rotatingwhen the tape rests and to start ro-\ tating when the tape begins to advance.

Specifically, the invention aims to provide a rewind coil, a motor for actuating said rewind coil, afriction clutch for connecting the rewind coil with the motor, a

forming a-loop in the tape when the tape advances, means for operatively connecting the lever with the rewindrol1:to anchor the rewind roll against rotation with themotor v when the loop in the tape is dissipated, and 4 to release the rewind roll for rotation with the motor when the lever'is disposed in the loop-forming position relative to the tape.- Theseand other features, capabilities and advantages of the invention will appear from the subjoined, detail description of one specific embodiment thereof, illustrated in,

the accompanying drawings, in which Figure 1 is a sectional diagrammatic view showing a complete news projecting machine equipped with the present improvements;

Fig. 2 is an enlarged. fragmental section showing the improved mechanism in position when the tape is advancing and the newind roll operating; L Fig 3 is a section on the line 3-3 of Fig. 2;

lever, guides associated with said lever for;

THE TENSION OF TICKEB TAPE.

4, 1926. Serial No. 92,226.

- Fig. 4 is an enlarged detail showing the Improved mechanism in position when the tape is at rest and the rewind roll anchored against operation; i

Fig. 5 isian enlarged fragmental side elevatlon of the rewind roll, connected to a motor partly shown;

Flg. 6 is a section substantially on the line of Fig. 5;

F g. 7 is a detail on the line 7-7 of Fig. 6;

Fig. 8 is a side elevation of a part of the rewind mechanism;

Fig. 9 is a'sectional end elevation of the part illustrated in Fig. 8.

The improvements constituting the present invention are illustrated as equipped on news pro ecting machines such as illustrated in my copending application, Serial No. 82,295, filed January 19, 1926.

In such type of news projecting machines, the screen 1, as illustrated in Fig. 1, is supported in a screen housing 2 having a defleeting mirror, not shown, the housing 2 being preferably secured to a wall or the like by means of brackets 4.

Below such screen housing 2, there is situated the projectingmachine proper, which consists essentially of a frame 5 having an upper platform 6 and a lower platform 7. On the upper platform 6 there is formed a housing 8 in one. end of which there is located the mirror .9 which projects the images received through the opening 10 in the housing 8 up through an opening in the bottom of the housing 2 to 'a mirror, not shown, from which it is projected onto the screen 1.

At the other end of the housing 8 on the platform 6 there is provided a lamp casing 12 in which the lamp 13 is mounted. The 'rays from the lamp 13 are projected by the condensing lens 14 to the mirror 15 and from the mirror 15 deflected to the condensing lens 16. There is provided an opening adjacent to the condensing lens 16 over which there is preferablyprovided a glass tape guide 17 to permit the tape T to pass over the same, receive the rays from the lens housing 18 from which the images are rojected to the mirror 9 and thereby dedected upward into the screen housing 2.

In the present instance, see Fig. 3, there is attached to the casing 12 a bracket 19 for the reel 20 to support the roll 21 of tape T. The tape after leaving the reel20 passes to the printing mechanism 22 andfrom there preferably passes over'a guide 23 at a position preferably above and to' the rear of the light opening formed in the casing 12. The top of the casing 12, as indicated in F1 3 at 24, is preferably cut away a short istance and has a support 25 provided in the lower end of said cut-away portion, directly above and engaging the tape guide 17.

The guide 23 is preferably composed of sheet metal and is looped at one end to form. a guiding portion 23 extending over the;

cutaway portion 24 and secured at its other end to the top of the casing 12. The tape 'l after leaving the printing mechanism first passes over the extended curved or looped portion 23, and then through the cutaway portion'24 to the support 25, the edges 24 and 24 of the cutaway portion 24 forming guides for the ta e T in its passage to the support'25. Pro erably as shown, the loop portion 23 also terminates a short distance i to the rear of the support 25.

After leaving the guide 23, the tape is deflected out of its path of movement by the bent'or looped end 26 of the rod or lever L preferably composed of wire, and from there passes to the support 25 and then down over the uide 17 to the guide roller 27 supported on t e bracket 28 secured to the frame 29 of the rewind roll 30. From the roller 27 the tape passes to the guide roller 31 mounted in an extension of the bracket 28, and then to the reel 32 of the rewind roll to be wound thereon. I

The reel 32 is" fixed on the shaft 33 and has secured to the side thereof the toothed wheel 34. The shaft 33 extends through the v boss 35 formed on the frame 57. Inside of the frame 57 the shaft 33 has fixed thereto the friction disc 36 which is preferably faced v with a fibrous friction plate 37.

.. and loosel Loosely mounted on the shaft 33, which is journaled in the bearing 38 and boss 05, there is provided the worm Wheel 39 in mesh with the worm 40 on the shaft 41 of the motor 42. The worm wheel 39 is operatively connected by means of the pins 43 and 44 to drive the friction disc 45 which abuts the friction face 37 engaging the friction disc 36. I To the outer face of-the friction disc 45, mounted on the shoulder 46 of such friction disc 45. there is provided the fibrous friction shield 48 which is resil ently held in engagement with the friction disc 45 by means of the spring clips 49, 50 and 51 secured to the friction disc 36 by the pins 52, 53 and 54.

It will thus be seen that the motor 42 drives the worm 40 through its shaft 41,

which worm 40 in turn drives the gear 39 in turn to drive the friction disc 45, and this disc 45 through the friction faces 37 and 48, and the clips 49, 50 and 51 frictionally drives the friction disc 36, which disc 36 by being fixed to the toothed wheel 34 and reel 32 in turn drives or rotates the toothed wheel 34 and reel 32. a

In the operation of this rewind roll, it is intended to drive the motor 42 continuously relative tothe advance of the tape T, and to provide means for stopping the reel 32 when the tape T is arrested, as an instance, when no quotations are being printed on the ticker tape. Toprovide for this temporary arrest of the reel 32, there is provided the pawl 55 pivotally mounted on the pin 56 secured to the housing 57 of the rewind roll by the brackets 58 and 59, the short arm of which has formed thereon a finger 60 topooperate with the teeth 61 of the toothed sirable to pivotally connect it to the lower end of the bracket 63 at 64, as indicated in Figs. 2 and 4.

From the foregoing it will be seen that the looped end 26 of the lever L will normally extend downward due to its pivotal connection with the bracket.63 and the weight of the link 62 and pawl 55, so that the looped end 26 will normall maintain or impinge a portion of the tape 'l against the support 25 when the tape T is slack, as indicated in Fig. 2.

It will also be seen that the looped end 26 projects a suficient distance so thatthe guide 23 will obstruct its upward movement should it be raised, as indicated in Fig. 4, in which position it will maintain or impinge a portion of the tape T in engagement with the guide 23. The operation of the projecting machine proper and the mechanism for dissipating the jump imparted to the tape T by the printing mechanism 22, will operate substantially as follows: 7

When the printing mechanism or ticker 22 starts'to o erate, it is desirable also to start the operatlon of the motor 42. With such printing mechanisms, the tape T will only be fed, forward while the printing mechanism operates. In other words, if no quotations or the like are being transmitted, the ticker is at rest. In the embodiment illustrated. the motor 42 will continue to operate even though the ticker 22 is at rest. When the ticker 22 is at rest, and the motor 42 is operating, it will draw the tape-T substanits tially taut so that it will engage the looped will be raised to depress the finger 60 of the pawl 55 into engagement with the teeth 61 of the toothed wheel 34. Thereupon, the toothed wheel 34 and the thereto attached reel 32 and friction disc 36, will be anchored against rotation with the friction disc A5 and permit the friction disc to slip relative to the friction disc 36.

By so anchoring the reel 32 against rotation, the rewinding action of the reel 32 will be stopped immediately after the ticker mechanism stops.

Thereupon, when the ticker again begins to operate, it will first relieve the tension in the tape T, form a loop, as indicated in Fig. 2, and permit the looped end 26 of the lever L to descend so that it will rest on the tape T and cause the tape T to hug the support 25, forming a friction creating surface. By means of the friction caused between the looped end 26, tape T and support 25, a retarding action will be exercised on the tape T, forming a frictional point of contact suflicient to permit a loop being maintained between the guide portion 23 and the looped end 26, as indicated in Fig. 2, that is, so localize the loop that its slack will not continue beyond the support 25, so that whatever jumps are transmitted to the tape T by the printing impulses of the printing mechanism will be absorbed by the loop thus formed and prevent the transmission of the jumps beyond the support 25. In turn, as the ticker starts to operate. and permits the lever L to descend, it will lower the link 62 and therewith the long arm of the pawl to withdraw the finger out of engagement with the teeth 61 of the toothed wheel 34 to permit the friction disc 36 again to be rotated with the friction disc 45, and thereby again rotate the reel 32 to continue the re winding action.

From the foregoing it will thus be seen that the actuation of the jump absorbing mechanism, to wit, the lever L, is operatively connected to control the starting and stopping of the rewind roll. By so combining these two mechanisms, the starting and stopping of the rewind roll. which is determined to a certain extent by the starting and stopping of the ticket mechanism, will be effected by a very simple construction which can be produced at comparatively low cost;

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 set forth in the appended claims.

I claim: v

1. The combination with a tape, of a projecting mechanism having a vertically extending projecting position, a printing mechanism for printing news items on said tape and feeding the tape forward in a vertical direction across said projecting position when printing, a lever having one end resting on said tape between said printing mechanism and said projecting position to form a loop in the tape when the tape is being fed, a rewind roll for di;awing the tape past said projecting position and for winding up the tape as it is being fed andtaking up the slack in said tape to raise said lever when the printing mechanism is at rest, a driving friction member, a driven friction member secured to-said rewind roll and facing said driving member to be engaged thereby, a second lever cooperating with said rewind roll, and a link connecting said second lever with said first lever, said first lever being actuatable by said tape when the slack is taken up in said tape to actuate said link in turn to actuate said second lever to anchor said rewind roll "against actuation with said motor.

ing mechanism for printing news items on i said tape and feeding the tape forward over said supports to said projecting position, when printing, a lever having one end resting on said tape between said supports to form a loop in the tape when the tape is being fed, a rewind roll for causing the tape to pass said projecting position and for winding up the tape as it is being fed and taking up the slack in said tape to raise said lever when the printing mechanism is at rest, a motor, a friction clutch for causing said rewind roll to be driven with said motor, and means operatively connected to said lever to control said friction clutch;

3. The combination with a tape, of two spaced apart supports, a projecting mechanism having a projecting position, a printing mechanism for printing news items on said tape and feeding the tape forward over said supports to said projecting position, when printing, a lever having one end resting on said tape between said supports to form a loop in the tape when the tape is a being fed, a rewindroll for causing the tape ing said rewind roll to be driven with said motor, and means for operatively connecting said lever with said rewind roll whereby the actuation of said lever when the printing mechanism is at rest will anchor said rewind roll against actuation with said motor.

4:; The combination with a tape, of two spaced' apart supports, a projecting machanism having a projecting position, a printing mechanism for printing news items on said tape and feeding the tape forward over said supports to said projecting position, when printing, a lever having one end resting on said tape between said supports to form a loop in the tape when the tape being fed, a rewind roll for causing the tape to pass said projecting position and for winding up the tape as it is being fed and for taking up. the slack in said tape to actuate said lever when the printing mechanism is at rest, a motor for actuating said rewind roll, and means operatively associated with said lever for causing said rewind roll to be stopped.

5. The combination with a tape, of two spaced apart supports, a projecting mechanism having a projecting position, a printing mechanism for printing news items on said tape and feeding the tape forward over said supports to said projecting position,

when printing, a lever having its free end resting on said tape between said supports, a rewind roll for causing the tape to pass saidprojecting position and for winding up the tape as it is being fed permitting the lever to be depressed as long as the printing mechanism operates and taking up the slackin said tape to raise said lever when the printing mechanism comes to rest, a motor for actuating said rewind roll, and means operatively associated wlth said lever .for causing said rewind roll to be stopped when said lever is raised and to cause said rewind roll to be actuated when said lever is depressed. v

6. The combination with a tape, of two spaced apart supports, a projecting mechanism having a projecting position, a printingmechanism for printing news items on said tape and feeding the tape forward over said supports to said projecting position, when printing, a lever having its free-end resting on said tape between said supports, a rewind roll for causing the tape to pass said projecting position and for winding up the tape as it is being fed and permitting the lever to be depressed as long'as the printing mechanism operates and for takin up the slack in said tape to raise said ever when the printing mechanism comes to rest, a' motor, a friction disc fixed to rotate with said motor, a second friction disc fixed to said rewind roll and engaging said first friction disc, a toothed wheel connected to said amazes rewind roll, a pawl cooperating with said toothed wheel, and .a link connecting said pawl to said lever. whereby the depression of said levenwill release said pawl from said toothed wheel and whereby the elevation of said lever will cause. said pawl to engage said toothed wheel and thus anchor said rewind roll against rotation with said motor permitting the friction discs to slip relative to one another.

7. The combination with a. tape, of two spaced apart supports, a projecting mechanismhaving a projecting 'position, a printing mechanism vfor printing news items on said tape for feeding theta'pe forward over said supports to said projecting position, when printing a lever having itsfree end restin'gon sai tape between said supports,

a rewind roll for causing the tape to pass said projecting position and for winding up the tape'as it is being fed and permitting the lever to be depressed as long as the printing mechanism operates and for taking up the slack in said tape to raise said lever when the printing mechanism comes to rest, a motor, a friction disc fixed to rotate with said motor, a second friction disc fixed to said rewind roll and engaging'said first friction disc, means for anchoring said rewind roll against actuation with said motor there by causing the friction discs to slip relative to one another, and means operatively connecting said lever with said anchoring means whereby the depression of said lever will disconnect said anchoring means and whereby the elevation of said lever will cause said anchoring means to lock said rewind roll against actuation with said motor.

8. The combination with a tape, of a projecting mechanism having a-projecting position, a printing mechanism for printing news items on said tape and feeding the tape to said projecting position when printing, two spaced apart supports between said printing mechanism and said projecting position, a lever having its free end resting on said tape between said supports to form a loop in the tape when the tape is being fed whereby the jump transmitted to the tape by said print-ing mechanism will be absorbed by said loop and prevented from being transmitted to the-portion of the tape disposed in said projecting position, a re- Ill) wind roll for maintaining the tape smooth when passing said projecting position and lever is raised and to permit said rewind roll to be actuated with said motor when said lever is depressed.

9. The combination with a tape, of a projecting mechanism having a projecting position, a printing mechanism for printing news items on said tape and feeding the tape to said projecting position when printing, two spaced apart supports between said printing mechanism and said projecting position, a lever having its free end resting on said tape between said supports to form a loop in the tape when the tape is being fed whereby the jump transmitted to the tape by said printing mechanism will be absorbed by said loop and prevented from being transmitted to the portion of the tape disposed in said projecting position, a rewind roll for maintaining the tape smooth when passing said projecting position and for winding up the tape after it leaves the projecting mechanism, permitting the lever to 'be depressed as long as the printing mechanism operates and for taking up. the slack in said tape to raise said lever when the printing mechanism comes to rest, a motor, a friction disc fixed to rotate with said motor, a second friction disc fixed to rotate with said -rewind roll and engage said first-mentioned friction disc, meansfor anchoring said re- 'wind roll against actuation with said motor 1 thereby causing the friction discs to slip relative to one another, and means operatively connecting said lever with said anchoring means whereby the depression of said lever will disconnect said anchoring ,means and the elevation of said lever will cause said anchoring means to lock said rewind roll against actuation with said motor.

10. The combination with a tape, of a projecting mechanism having a pro ecting position, a printing mechanism for printing news item on said tape and feeding the tape to said projecting position when printing. two spaced apart supports between said printing mechanism and said projecting position, a lever having its free end resting on said tape between said supports to form a. loop in the tape when the tape is being fed whereby the jump transmitted to the tape by said printing mechanism will be absorbed by said loop and prevented from being transmitted to the portion of the tape disposed in said projecting position, a rewind roll for maintaining the tape smooth when passing ,said projecting position and for winding up the tape after it leaves the projecting mechanism, permitting the lever to be depressed as long as the printing mechanism operates and fortaking up the slack in said tape to raise said lever when the printing mechanism comes to rest, a motor, a friction disc fixed to rotate with said motor, a second friction disc fixed to rotate with said rewind roll and engage said fir tmentioned friction disc, a toothed wheel connected to said rewind roll, a pawl co-opcrating with said toothed wheel, and a link connecting said pawl to said lever whereby the depression of said lever will release said pawl from said toothed wheel and whereby the "elevation of said lever will cause said pawl to engage said toothed wheel and thus anchor the rewind rollagainst rotation with said motor permitting the friction discs to slip relative to one another.

11. The combination with a ticker having a printing mechanism for printing news items. on a'tape and a feeding means for imparting a feeding impulse to advance the tape after each printing impression, of a project-ing mechanism, a support located between said projecting mechanism and said feeding means and spaced from said feeding means, a finger adapted to engage the tape to deflect the tape out of its path of movement and form a loop in said free space, a re-wind red for drawing the tape past said projecting mechanism and for winding up the tape as it is being delivered, and friction drive means for actuating said re-wind reel, said drive means cooperating with said feeding means to create suflicient tension in said tape when the operation of said ticker feeding means is discontinued while said re-wind reel continues to operate so that the slack in said tape is taken up and thereupon said lever raised, and means operatively associated with said lever for causing said re-wind reel to be arrested when said lever is raised.

12. The combination with a ticker having a printing mechanism for printing news items on a tape, of a projecting mechanism, means for imparting a feeding impulse to advance the tape towards said projecting mechanism after a given printing impression, there hang a space formed between said feeding means and said projecting mechanism, a lever adapted to engage the tape and deflect it into said space to form a loop, a re-wind reel for win ding up the tape as it is delivered through said projecting mechanism, friction drive means for actuating said re-wind reel, said re-wind reel being free to slip relative to said drive means to compensate for the increasing speed caused by the gradually increasing diameter of the re-wind reel, said drive means also cooperating with said feeding means.

to create sufiicient tension in said tapewhen the operation of said ticker feeding means is discontinued to cause said lever to be raised, and means operatively associated with said lever for causing said re-wind reel to be arrested when said lever is raised.

13. The combination with a ticker having a printing mechanism for printing news items on a tape,-of a projecting mechanism, means f r imp r mg a feeding impul e to said tape after a given printing impression to advance said tape to said projecting mechanism, there being a free space between said projecting mechanism and said feeding means, a lever for deflecting the tape into said free space, a re-Wind reel, friction drive means for actuating said re-wind reel to wind up the tape as it is delivered from said projecting mechanism, said re-wind reel being free to slip relative to said drive means to compensate for the increased speed 1,eae,sos

transmitted to said tape by'the gradually increasing diameter of said re-wind ree said drive means cooperating with said feeding means to .create sufficient tension in said tape to actuate said lever when said feeding means is stopped, and means operatively associated with said lever for causing said re-wind reel to be arrested when said lever is actuated by said tape.

BARTON A. PROCTOR.

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