US2001710A - Stock quotation projecting machine - Google Patents

Description

J. W. DECKER STOCK QUOTATION PROJEC'IING MACHINE Original Filed May 25, 1928 ATTORNEY ENTo Dec E UH" LE: I

Patented May 21, 1935 STOCK QUOTATION PROJECTING MACHINE James W. Decker, New York, N. Y,

' Application May 23, 1928, Serial No. 280,099

Renewed June 7, 1933 6 Claims.

This invention relates to stock quotation proecting machines in general, and more especially to devices for controlling the mov tape.

Among the objects of the present invention, it is aimed to provide a device for effecting the smooth and even passage of the tape through the projecting mechanism of a stock quotation projecting machine and also to effect smoothly spreading out the portion of the tape being projected as well as the slow starting and stopping of the tape, all to the common end of projecting on a screen a picture of the quotations being projected, which picture can be observed by the average trader for an extended period of time without danger of eye strainor discomfort.

To this end the present invention aims specifically to provide a tape controlling device consisting of a device for advancing the tape into the projecting position and a device for receiving the tape after being projected and drawing the tape therefrom, which device operates at a slightly faster rate of speed than the advancing device.

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 drawing in which Figure 1 is a fragmental front elevation of a stock quotation projecting machine made according to the present invention; and

Fig. 2 is a fragmental end elevation of the same.

In the embodiment illustrated there is provided 5 a main frame having an upper platform I and a lower platform 2. On the upper platform I there is mounted a support 3 on which is mounted the ticker generally designated by the reference character T, having a printing mechanism and an ejecting mechanism of the standard type such as used in certain tickers. To oneside of the support 3 there is provided the lamp housing I in which is mounted the lamp 5. The rays of the lamp 5 are received by the lens 6 in the lamp 5 housing from which they are projected onto the reflector I from there upward through the light aperture disposed above the reflector 1 onto the tape a and through the projecting lens formed in the housing 8 supported by the bracket 9 on the top of the lamp housing 4. From the projecting lens in the housing 8 the images of the printed matter on the tape are projected onto the reflector ill in the screen housing II supported by brackets l2 suitably secured to an adjacent partition or wall member l3. From the reflec ement of the tor III the images are projected onto the screen ll.

The tape 'a, see Fig. l, is ejected by the ticker T, and received between the idler I and advancing roller l6. From there the tape passes across the light aperture or projecting position of the projecting mechanism over to and between the idler l1 and tape drawing roller l8. From there the tape a passes down to a suitable receptacle or rewind mechanism as desired.

Among the features of the present invention is the cooperation of the rollers l6 and I8 with the tape a. The roller I8 is slightly larger than the roller l6, and consequently, if driven at the same rate of speed, will transmit to the tape a a speed faster than the speed transmitted to the tape a by the roller [5 or rather will exercise a tension on the tape a always sufilcient to maintain the same taut and free from loops, sags, wrinkles, and the like. Preferably the tension of the idler l5 relative to the roller I6 is such that the idler l5 and roller l6 effect a positive feeding action or positive drawing action on the tape as distinguished from a slipping action. On the other hand the tension of the idler ll relative to the roller I8 is such that slight slippage may occur, thereby being effective to protect the tape a against injury and at the same tinie due to the faster speed transmitted by it to the tape a than the speed transmitted to the tape a by the roller I6, being effective to exercise sufficient tension on the tape a to maintain the same taut at all times both when the feed starts, continues in its regular movement or when it stops, whereby the tape a will at all times be maintained free of loops, sags, wrinkles, or the like. In order to cause the roller I8 to operate at the same rate of speed as the roller Hi, the roller l6 has secured thereto a bevel gear 24 similar in dimension tothe bevel gear 25 secured to the roller Ill. The bevel gear 24 meshes with the bevel gear 25 on one end of the shaft 21 supported in the brackets 28 and 29 secured to the lamp housing 4. The bevel gear 25 meshes with the bevel gear 30 at the other end of the shaft 21.

In the space formed between the ticker T and roller Hi, the finger 3| of the switch mechanism now to be described rests on the tape a. The finger 3| is suitably connected to the upper end of a link 32 or the like whichis pivotally connected at. its lower end to the bracket 33 of a mercury switch 34, which bracket 33 is pivotally connected to the abutment 35 secured on the platform 2. The mercury switch 34 is connected by the conductor 35 with the motor 31 and by the conductor 38 with the outlet plug 39. The outlet plug 39 is connected by the conductor 40 with the motor 31.

The motor 31 is mounted on the platform 2 and has fixed to its shaft 4| the worm wheel 42 which meshes with the worm 43 of the shaft 44 which is journaled in the bearings 45 and 46, and has fixed at its upper end the bevel gear 41. in mesh with the bevel gear 30.

From the foregoing it will be seen that as the ticker T starts to operate and eject the tape, a loop 48 will initially be formed to permit the finger 3| in engagement therewith to descend and rock the bracket 33 to cause the switch 34 to make contact, whereupon the motor will be ac-- tuated to gradually pick up speed and in turn to actuate the shaft 44, and therewith the shaft 21 and associated bevel gears 26 and 30. Thereupon the rollers l6 and I8 being actuated and the roller I 8 tending to transmit a faster rate of speed to the tape a than the speed transmitted to the tape by the roller l 6, the tape a in the projecting mechanism and adjacent to the shaft 21 will be maintained taut and at the same time continue to maintain the loop 48 so long as the ticker T is operating. As soon as the ticker T comes to rest, the motor 31 will continue to operate until the loop 48 has been sufficiently dissipated to raise the finger 3i and in turn to actuate the bracket 33 and break the contact, whereupon the motor will gradually come to rest and cause the rollers I6 and I8 likewise to come to rest.

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 tape, of a tape controlling device for controlling the tape as it passes across the light aperture of a projecting mechanism in which the tape is fed to the light aperture by an intermittent vibration transmitting movement, said tape controlling device consisting of two pairs of rollers for gripping said tape, one pair at the supply end of the light aperture and the other pair at the discharge end of the light aperture, said other pair exercising a tension on the portion of the tape located at the light aperture, and means for actuating said rollers.

2. The combination with a ticker tape, of a tape controlling device for controlling the movement of the tape as it passes across the light aperture of a projecting mechanism, said tape controlling device consisting of a tape advancing roller for advancing the tape to the light aperture and a tape drawing roller for drawing the tape across the light aperture, said advancing roller transmitting a slower rate of speed to the tape than the rate of speed transmitted to the tape by said drawing roller thereby to exercise a tension on the portion of the tape located at the light aperture and to maintain the tape taut at the light ap- :ture, and means for actuating said rollers.

3. The combination with a ticker tape, of a tape controlling device for controlling the tape at the light aperture of a projecting mechanism in which the tape is fed to the light aperture by an intermittent vibration transmitting movement, said controlling device consisting of a tape advancing roller disposed at the entrance end of the light aperture, and a tape drawing roller disposed at the discharge end of the light aperture, and means for operating said tape drawing roller to transmit a faster'rate of speed to the tape than the rate of speed transmitted to the tape by said tape advancing roller thereby to exercise a tension on the portion of the tape located at the light aperture and thus maintain such portion smooth.

4. The combination with a ticker tape, of a tape controlling device for controlling the tape at the light aperture of a projecting mechanism, said controlling device consisting of a tape advancing roller disposed at the entrance and of the light aperture and a tape drawing roller disposed at the discharge end of the light aperture, said tape drawing roller having a greater diameter than said tape advancing roller, a motor, means for operatively connecting said motor to actuate said rollers whereby said advancing roller will retard the movement of the tape as it passes to the light aperture relative to the movement transmitted thereto by the drawing roller and relative to the speed at which the tape is fed to the advancing roller to form a vibration dissipating loop in advance of said advancing roller, an electric switch for said motor, and a device cooperating with said loop to control said switch.

5. The combination with a ticker tape, of a tape controlling device for controlling the tape at the light aperture of a projecting mechanism,

said controlling device consisting of a tape advancing roller disposed at the entrance end of the light aperture and a tape drawing roller disposed at the discharge end of the light aperture, said tape drawing roller having a greater diameter than said tape advancing roller, a motor, means for operatively connecting said motor to said rollers to actuate said rollers at the same rate of angular speed whereby said advancing roller will tend to retard the movement of the tape relative to the movement transmitted thereat the light aperture of a projecting mechanism, a.

said controlling device consisting of a tape advancing roller disposed at the entrance end of the light aperture and a tape drawing roller disposed at the exit end of the light aperture, said tape drawing roller having a greater diameter than said tape advancing roller, means for actuating said tape advancing roller and said tape drawing roller to rotate at the same rate of angu lar speed, and means for impinging said tape into engagement with said tape advancing roller and said tape drawing roller whereby said tape will be maintained taut at the light aperture at all times.

JAlVIES W. DECKER.

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