US1763844A - Rewinding mechanism for the tape of news projecting machines - Google Patents

Description

June 17, 1930. J w. DECKER 1,763,844

REWINDING MECHANISM FOR THE TAPE OF NEWS PROJECTING MACHINES Filed June 17, 1926 I I F l I g 3& 2J0 19 INVENTOR Patented June 17, 1930 UNITED STATES PATENT OFFICE JAMES W. DECKER, OF NEW YORK, N. Y., ASSIGNOR TO NEWS PROJECTION CORPORA- TION, OF NEW YORK, N; Y., A CORPORATION OF NEW' YORK- REWINDING MECHANISM FOR THE TAPE 0]? NEWS PROJECTING- MACHINES Application filed June 17,

This invention relates to stock quotation projecting machines in generally and more especially to improved mechanisms for rewinding the stock quotation tape after it has passed through'the projecting position.

With stock quotation projecting machines having rewinding mechanisms, it is desirable automatically to control the rewinding mechanism to stop, start, andvary its speed to correspond-with the action of the feeding mechanism of the ticker or stock quotation transmitting mechanism.

Among the objects of the present invention, it is aimed to provide an improved rewind mechanism in which the driving mechanism for the rewind reel may continue uninterrupted but the connection to the driven reel permit slippage without endangering in any way the tape being rewound. Specifically this feature of the invention contemplates associating with the rewind reel and the driving mechanism sheaves, and a yieldable belt, such as the spring belt, for connecting the two sheaves.

The present invention further contemplates provisions for facilitating the removal of the used reel and inserting the advanced edge of the new tape to permit continued projection of the succeeding tape without in any way interrupting the continued operation of the projecting mechanism.

Among other objects of the present invention, it is aimed to provide an improved construction whereby positively to insure even and compact rewinding of the used ta e. V

These and 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 side elevation partly in section of-a stock quotation projecting machine equipped with the present improvements;

Fig. 2 is a section on the line 22 of Fig. 1;

Fig. 3 is a section on the line 33 of Fig. 1;

1926. Serial No. 116,513.

Fig. 4 is an enlarged detail of a portion of a tape guiding mechanism; and

Fig. 5 is a section on the line 55 of Fig. 4.

In the embodiment shown, there is illustrated a frame A having a lower platform 1, an upper platform 2 having a' casing 3 mounted thereon which casing 3 is provided with an opening 4 at the left u per end to permit the passage of the light rays to the screen or screen housing, not shown.

0n the platform inside of the casing 3 near the right hand thereof, there is supported the lamp housing 5 which encloses a lamp 6, an intermediate lens 7, a mirror 8 disposed at about forty-five degrees angle thereto and to the rear of said lens 7, and a condensing lens 9 to the left of said mirror 8. To the left of said condensing lens 9 and adjacent thereto, there is provided a window having an elongated glass plate- 10 over which the tape T passes. To the left of the window 10 there is provided a projecting lens enclosed in a casing 11 supported on a standard 12 mounted on the platform 2. To the left of the casing 11 and under the opening 4 there is rovided the mirror 13 adjustably supporte on. the standard 14 also mounted on the platform 2.

To the rear of the lamp housing 5 in the casing 3, there is provided the ticker denoted generally by S and having a printing mechanism 15, and a feeding mechanism 16. To the right of the ticker S there is supported in any suitable way the supply tape. r011 R. From the supply roll R, the tape '1 passes to the printing mechanism 15, then to the feeding mechanism 16, and then't-hrough the recess 17 formed in the top of the lamp housing 5 at the rear end thereof, as shown in Fig. 2. From the recess 17 the tape T passes down past the glass plate 10, through the opening 18 formed in the platform 2, to the idle roller 19 supported on the bracket 20 mounted on the platform 1.

When the tape T passes through the re- The finger 21 is preferably in composition a wire having a downwardly extending looped portion 22 bent at right angles to the main shaft 23 thereof. The shaft 23 is supported in a bracket 24 which is pivoted,

see Fig. 5, at 25 to the plate 26 secured to the top of the lamp housing 5 forwardly of the recess 17, the shaft 23 extending through alined openings formed in the free end of the bracket 24 and having an adjusting member 27 whereby the position of the finger 21 may be adjusted. The bracket 24 is provided with a handle 28 by means of which the bracket 24 may be swung about its pivot pin 25, that is, so that the finger 21 ma be swung into engagement with the tape as shown in full lines in Fig. 5, and out of engagement with the tape T, as shown in dotted lines in Fig. 5.

To limit the rearward movement of the bracket 24, and thereby determine the position of the finger 21 on the tape T, there is provided a stop pin 29 extending from the top of the housing 5 to be engaged by the ed e of the bracket 24.. Furthermore, for

yie dably anchoring the bracket 24 in posi tion where the finger 21 engages the tape T, there is provided a flat sprin 30 fixed at its right hand end to the top of the housing 5 and extending to the left in a straight line to engage the edge 31 of the bracket 24, as

shown in Fig. 5, where it will position the finger 21 in engagement with the tape T. Similarly, the spring 30 will yieldabl-y maintain the bracket 24 1n position when the finger 21 will not engage the tape T, see the dotted line position of the bracket 24 in Fig. 5.

From the roller 19, the tape T extends up and over the roller 32 fixed on the shaft 33 supported in the housin 34 of the worm wheel 35 also fixed on t e shaft 33. The housing 34 is mounted on the platform 1, and has journals in its lower end for the pivot portions of the worm 36 in mesh with the worm wheel 35. The worm 36 is operatively connected bythe flexible connection 37 with the shaft of the motor 38. The roller 32 preferably has edges 39 and 40 to guide the tape T as it passes over the roller 32.

From the roller 32, the tape passes down and under the in 41 and then over the reel 42which is xed to the shaft 43 mounted in the support 44. The rear end of the shaft 43 has secured thereto a sheave 45 to receive a yieldable belt, such as the spring 54. The support 54 is split axially, as shown' in Figs. 2 and 3. Furthermore, the outside face of the disc 53 is disposed forwardly of the edge 39 of the roller 32 so that, as the tape T leaves the roller 32, it will be wound upon the support 54 snug against the face of the disc 53, thus to insure the winding of the tape T on the support 54. By means of the axially extending slot formed in the support 54, before rewinding begins, the end of the tape T may be threaded into such slot and thereby the tape T be quickly connected to the rewind reel 42 in position for the rewinding action. Similarly, when the used tape has been all wound up, it is support 54 without in any way unwinding any portion of the same.

From the foregoing, it will thus be seen that with this type of reel 42, a rapid and expeditious change of tape rolls may be effected, and at the same time by offsetting the disc 53 relative to the edge 40 of the roller 32, the danger of improperly guiding the tape T on the reel 42 will be overcome.

By means of the spring belt 46, it will also be seen that, when the feeding mechanism 16 is interrupted due to the failure of transmitting quotations, the tension created in the tape will be transmitted to the roll of tape on the reel 53, and in turn due to the yieldability of the belt 46, the belt-46 will be sufliciently extended to permit the shaft 47 to slip relative to the belt 46 and thus permit the reel 42 to remain at rest without in any way endangering the tape T.

It will furthermore be seen that an even tension will at all times be maintained on the tape T while it passes the lens 9 due to the cooperation of the feeding means 16, loop forming lever 22 and the tape drawing means embracing the rollers 32 and 48. In other words, if the tape were taken up directly by the wind-up reel 42, due to the gradually increasing velocity that would be transmitted to the tape T as the diameter of the roll gradually increased, an uneven tension would of necessity be transmitted to the tape T which in practice has been found to cause unlimited difiiculties. With the present mechanism, the rollers 32 and 48 form a protecting wall, the driven roller 32 cooperating with the friction roller 48 to transmit a uniform drawing action on the tape T and thus set off or space the portion of the tape that passes the lens 9 from the portion of the tape between the roller 32 and the wind-up reel 42 that would receive the gradually increasing tension.

It is ObVlOllS 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 printing mechanism for printing news items on a tape, of a projecting mechanism, means for imparting a feeding impulse to the tape to advance the tape from said printing mechanism to said projecting mechanism, loop forming means for forming a loop between said printing mechanism and said projecting mechanism during the operation of the feeding means, means for imparting a uniform drawing action on said tape to draw the tape past said projectingmechanism and cooperating with said loop forming means to maintain taut the portion of the tape located at a projecting mechanism, means for imparting a feeding impulse to the tape to advance the tape from said rinting mechanism to said projecting mec anism after a given printing impression, means for imparting a uniform drawing action on said tape commensurate with the feeding impulse of said feeding means, a driving shaft operatively connected to said drawing means, said drawmg means being free to slip relative to said tape when said feeding means is arrested, and a rewind reel operatively connected to said driving shaft and being free to slip relative to said driving shaft when said feeding means comes to rest.

JAMES W. DECKER.

the projecting mechanism, a driving shaft operatively connected to said drawing means, said drawing means being free to slip relative to said tape when said feeding means is arrested thereby initially to take up the slack formed by said loop forming means and thereupon maintain a uniform tension on the tape between said printing mechanism and said drawing means, a'rewind reel, and

an extensible belt connecting said driving shaft with the rewind reel whereby slippage between the belt and driving shaft will permit the reel to rest whenever the feeding means is stopped.

2. The combination with a printing mech anism for printing news items on a tape, of a projecting mechanism, means for imparting a feeding impulse to the tape to advance the tape from said printing mechanism to said projecting mechanism, loop forming means for forming a loop between said printing mechanism. and said projecting mecha: nism during the operation of the feeding means, means for imparting a uniform drawing action on said tape to draw the tape past said projecting mechanism and cooperating with said loop forming means to maintain taut the portion of the tape located at the projecting mechanism, a driving shaft operatively connected to said drawing means,

said drawing means being free to slip relative to said tape when said feeding means is arrested thereby initially to take up the slack formed bysaid loop forming means and thereupon maintain a uniform tension on the tape between said printing mechanism and said drawing means, a rewind reel, and a slippage affording driving connection between said rewind reel and said driving shaft whereby the reel will come to rest Whenever the feeding mechanism is stopped.

3. The combination with a printing mechanism for printing news items on a tape, of

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