US2160847A

US2160847A - Page projector

Info

Publication number: US2160847A
Application number: US41567A
Authority: US
Inventors: August D Eitzen
Original assignee: NEWS PROJECTION CORP
Current assignee: NEWS PROJECTION Corp
Priority date: 1935-09-21
Filing date: 1935-09-21
Publication date: 1939-06-06
Anticipated expiration: 1956-06-06

Description

June 6,1939. A D, EIfZEN 2,160,847

PAGE PROJECTOR ,zar

/zsa /116 IN VENTOR,

15g imma@ ATTORNEY.

June 6, 1939.

HIHIIIllllllllllllll'llll'm Egg A.' D. EITZEN PAGE PROJECTOR Filed Sept. 2l, 193

5 2 Sheets-Sheet 2 INVENTOR.

ATTORNEY.

I 15 protected from the h Patented June 6, 1939 PATENT OFFICE PAGE PROJECTOR August D. Eitzen, signor to News York, N. Y., a corpo Application September 2 f 19 Claims.

This invention relates to page projectors. Among the objects of the present invention, it is aimed to provide an improved projecting machine for association with a page printer includ- 5 ing an improved compact optical system whereby the optical elements may be so arranged as to be housed in a very narrow cabinet not only to conserve space but also to enhance the appearance of the cabinet. I I

It is still another object of the present invention to provide an improved optical system for a projecting machine especially adapted for use I with a page printer whereby the lamp may be disposed above the printer and thus the printer eat of the lamp and an ex sed light beam gniiication with tensive throw of image impres provided to effect the proper ma a given objective lens.

o It is still another object of the present inven- 0 tion to provide an improved tape moving mechanism for effecting the movement of the tape A across the light aperture including a continuously operating motor, a tape moving roller, a slippage device and a control responsive to a deection in the tape to eiect the movement of a predetermined length of tape across the light aperture, such forinstance as to correspond to the width of one orf more line spaces according to the spacing of the printer.

It is still another object of the present invention to provide an improved combined projecting machine yfor news items and the like and an advertising machine including lamps and motor for the projecting machine and advertising machine controlledl by the printer associated with the projecting machine.

It is still another object of the present invention to provide an improved control operatively 40 associated with the ticker whereby not only the electric circuit for the lamps of a projecting' machine and an advertising machine but also for the motor of the same is established when the circuit ofthe ticker is established ready to receive a message.

Among other objects of the present invention," it is aimed to provide an improved mount for-the take-up reel. y I

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 accompanyingdrawings in which Figure 1 is a perspective of a cabinet for a Rockville Centre, N. Y., as- Projection Corporation, New

ration of New York 1, 1935, Serial No. 41,567

machine made according to the present tion;

Fig. 2 i of Fig. 1;

Fig. 3 is a diagram of the wiring used in the 5 present invention for controlling the lamps and motor of the machine by the printer;

Fig. 4 is a fragmental perspective of the tape moving device;

Fig. 5 is a section on the line 5-5 of Fig. 4; and 10 Fig. 6` is a section on the line 6-6 of Fig. 4.

In the embodiment shown, there is provided a cabinet I having a base 2 mounted upon any suitablestandards or supports, such as the casters 3, 3. Extending upwardly from the base 2, there are provided the side walls 4, 5 and the front wall 6. Secured to the upper edges of the walls 4, 5 and 6, in the present instance, there is provided the top 'I. The front wall 6 in the present instance l has two openings formed therein, the lower one preferably covered with a pane of glass 8 and the upper one with a translucent or rear projection screen 9 and an outer pane 9 of glass.

Above the base 2, there is provided in the present instance a horizontally extending platform I0 supported in place by the side walls 4 and 5. 'Ihe rear of the cabinet I is closable by the removable wall II which is preferably provided with an opening I2 adjacent its lower end across which opening I2 there is formed a `suitable forarninated screen I3 or the like. The wall II is also' preferably provided with a second opening I4 in' the present instance disposed above the middle of the wall Il and provided with a foraminated screen I5.

The opening I4 in the present instance forms the upper outlet for the ue I6 for drawing oif the 1 hot air from the upper end of the lamp housing II, the opening I2 in this instance forming an inlet for the fresh supply.

In the present instance secured to the inner face of the front wall 6 and extending down from a level above the upper end of the glass window B to a level 'below the lower end ofthe glass window 8 and in the present instance a short distance above the platform I0, there are provided the supporting plates I8, in the upper ends of which is journaled the shaft I9 for the sprocket wheels 2U and in the lower ends vof which plates I 8, there is journaled the shaft 2| for the sprocket wheels 22. The shaft I9 is preferably disposed at a level above the upper end of the glass window 8 and the shaft 2| in the present instance well below the lower end of the glass window 8.

Furthermore, the sprocket wheels 20 are disinvens a transverse section on the line 2--2 posed well to one side of the glass window adjacent each end of the shaft i 3 and the sprocket wheels'22 preferably disposed in alinement with the sprocket wheels 2@ to receive the sprocket chains 23. The sprocket chains 23 are intended to support advertising material, such as car cards, to be brought into and out of display position adjacent the glass window i3 but other than the driving connection in association with the combination hereinafter to be described, this advertising device forms no part of the present invention.

The shaft'i has xed thereon the worm wheel 2d in mesh with the worm 25 on the shaft 25 having fixed on the inner end thereof the sheave 2l connected by the belt Z8 with the sheave 25 on the shaft 35 of the motor 3l mounted on the platform i5, in the present instance, adjacent the printer or ticker 32 also mounted on the platform lil.

The invention here is directed mainly to a combination including a page printer and therefore the printer 32 will be assumed to be of the page printer type having a printing wheel 33 and

tape discharging rollers

35 and 35 above the same for feeding the tape 36 upwardly out of the printer 32. rIhe tape 36 in the present instance is fed upwardly from the supply reel 3l mounted to pivot at 35 on the brackets 39 extending upwardly from the base 2. In order to facilitate the upward feed of the tape from the reel 3l, there is provided the resilient Whisker it extending upwardly from the base 2 and engaging the tape 35 and yieldably drawing it away from the housing it as indicated in Fig. 2.

After leaving the Whisker lili, the tape passes between the guides d2, passed the printing wheel 33 and then into engagement with the

feed rollers

34 and 35 of the printer and from there upwardly in front of the lamp housing il to and over the rod d3 secured to the cheek plates l5 and d5 connected to the channel 55 extending across and supported by the side walls l and 5. From the rod Q3, the tape passes down under the nger il secured to the ends of the levers i8 and 53 fixed to the shaft 50 journaled in the cheek plates ld and d5. The finger lll is also preferably provided with a resilient Whisker 5lv which engages the tape 36 on its way from the rod d3 to the nger di and deflects it inwardly away from the front wall 5 thereby to maintain the tape in contact with the finger il during the feeding impulse.

From the finger di, the tape passes up over the rod 52 and then onto the cylinder 53 preferably composed of cardboard to produce the takeup reel 54. The cylinder 53 is mounted to rotate about the axis of the shaft 55 journaled in the cheek plate @d and the auxiliary cheek plate 56 also secured to the channel iron 45. Fixed to the shaft 55, there is provided the large gear 5l in mesh with the small gear 58 fixed to the hub 53 of the escapement wheel 60 journaled on the shaft 6l.

The eslcapement wheel 60 is preferably provided with a friction drive face 62 preferably engaged by the friction drive facer63 of the sheave 5d similarly journaled on the shaft 6i. The sheave 6d is connected by the belt 65 with the sheave 66 fixed to the shaft I9. v

In order to yieldably maintain the friction faces 63 and 62 in driving engagement with one another, there is provided the coil spring 51 tensed between the disc 68 on the shaft 5l and the collar 69 in engagement with the roller bearing niemeer unit l@ mounted in the chambered portion il oi the sheave tl.

Fixed to the outer end of the rocker shaft 53, there is provided the arm i2 to the lower end of which is pivotally connected the bar 'i5 having a slot lll therein to receive the pin i5 extending from the cheek plate l5 and forming a guide for the bar l5. The rear end of the bar lf3 is intended to cooperate with the teeth 'i5 of the escapement wheel 50i. There are four such teeth i5 provided on the escapement wheel 55 in the present instance.

From the foregoing, it will thus appear that the rear end of the bar i5 will obstruct the path of movement of the teethlt to anchor the escapement wheel 55 against rotation with the sheave 5d when the bar lf3 is in its forward position, that corresponding to the uppermost position of the nger till when the slack in the tape 35 has been taken up by the rewind reel 5d due to the driving connection between the sheave 55 and the escapement wheel 55.

It will furthermore appear that when the feed wheels 3l] and 35 of the ticker 32 advance the tape a distance corresponding to one or more line spaces at a time that the slack, thereby formed in the tape between the

rollers

55, 35 and the rod 33, will, due to the weight of the finger il and arms it and l5 enable the finger il to descend and take up such slack and thereby in turn rock the shaft 55 to rock the arm i2 and `withdraw the bar H5 out of the path of movement of the teeth 'i5 to permit the friction drive between the sheave titl and escapement wheel t@ to become eective in turn to actuate the gear 58 and thereby the rewind reel 5d until the slack has again been taken up, the finger il raised and thereby the bar i3 again projected into the path of movement of the teeth it to anchor the escapement wheel t5@ against further rotation.

In order properly to center the cardboard cylinder 53 relative to the shaft 55, the shaft 55 is provided with a shouldered disc 'Vi having a concentric diminished portion 'i8 to t the inner periphery of the cylinder 53 with the lateral edge of the cylinder 53 abutting against the enlargement l@ of the shouldered disc il. The enlargement 'i5 also has an inwardly protruding pin 715' to pierce the end of the cylinder 53 and thus facilitate a positive drive.

To engage the other end of the cylinder 53, there is provided a second shouldered disc having a diminished portion 5l to engage the inner periphery of the cylinder 53 and the lateral outer edge of the cylinder 53 engaging the lateral face of the enlargement 82. The shouldered disc 55 is provided with a centrally located tapered opening 83 to receive the tapered end 8d of the pin 85 extending through the journal 85 in co-axial alinement with the shaft 55. The journal B5 in thev present instance is mounted in the cheek plate d5.

In order to facilitate insertion and removal of the cylinder 55 from engagement with the shouldered discs il and 30, the pin 85 is removably mounted in the journal 86 and provided with an adjusting screw 88 screw-threadedly connected to the journal 86 with the locking point 81'to engage and anchor the pin 85 in proper position when the cylinder 53 is properly mounted.

The lamp housing l1 in the present instance consists of a removable wall 89, a front wall Sli and suitable side walls 5l provided with the bosses 52 to receive the rods 93 extending down from suitable brackets connected to the channel 46 and connected at their lower ends to the metal straps 94 extending rearwardly from the plates |8. In other words, the lamp housing |1 is slidably mounted on the rods 93 to facilitate access to the ticker and adjustment of partsand the like. The upper end of the lamp housing is preferably inclined with a front inclined top wall 95 spaced from the rear wall 89 to form an opening to communicate with the llower end of the flue I6 when the rear wall is positioned as shown in Fig. 2.

The lamp housing I1 of course cannot be raised due to this flue I6 until the wall has been removed. The lower end of the lamp housing |1 is preferably provided with an inclined wall 96 at its rear end provided with a spring 91 to press an angle mirror 98 into position against the inclined supports 99. Between the inclined wall 96 and the front wall 90, there is provided another inclined wall |00 to form a support for the condensing lens |0| adjacent the light aperture |02 across which the tape passes after leaving the

rollers

The lamp housing is also provided with suitable supports for the condensing lenses |00 and |01 between the angle mirror 98 and the lamp |08 secured in a horizontally extending socket |09. The lamp housing is also provided with a suitable support for the spherical reflector i0 to direct the light rays from the lamp |08 through the condensing lenses |01 and |05 onto the angle mirror 98. The lamp housing is also provided with two arms extending from the wall thereof to support the housing H2 of the objective lens unit so that the image impressed light beam after `passing through the tape and being deflected upwardly by the mirror |05 will be received by the objective lens unit mounted in the housing ||2 and directed upwardly onto the inclined mirror |3 suitably secured adjacent to the top 1 of the cabinet. The light rays are in turn deflected by the mirror I3 onto the inclined mirror ||4 by it to be deflected onto the rear face of the screen 9 so that the message may be read from the front face of the screen 9.

The housing 40 in the present instance preferably contains an automatic control, see disclosure in Patent No. 1,908,333, including an electromagnet H5, the conductor ||6 of which is preferably operatively connected to the control relay of the printer 32, which electromagnet ||5 is in turn connected by the conductor ||8 to one terminal |9 of a switch |20 connected to the feed lines |2| and |22 respectively, the other terminal |23 of the switch |20 being connected by the conductor |24 to complete the return circuit.

The electromagnet |5 is in turn provided with an armature |25 pivotally connected to the conductor |26 connected to the conductor ||8 and operable to engage the contact |21 of the conductor |28 which is connected to one terminal of the motor 3| by the conductor |29, to one terminal of the lamp |08 by the conductor |30 and to one terminal of the lamp |3| of the advertising machine by the conductor |32.

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: v

1. The combination-with a broa-d tape, of a page printer for marking said tape, a vertically extending projection field, and a tape moving devce for drawing the tape upwardly through said projection field with the lines of printed matter extending transversely of the tape and horizontally, said tape moving device including'a continuously operating motor, a drive operatively connected to said motor, a tape take-up roller, a slippage device for drivingly connecting 'said tape take-up roller with said drive, an escapement for anchoring said roller against rotation with said drive, and a control responsive to deflections in the tape when said printer advances the tape a line space initially to draw the tape across said projection ile'd and operatively connected to said escapement to actuate said escapement into and said roller against rotation With said drive.

2. IThe combination with a broad tape, of a page printer for marking said tape, a vertically extending projection fiel-d and a tape moving device for drawing the tape upwardly through said projection ileld with the lines of printed matter extending transversely of the tape and horizontally, said tape moving device including a continuously operating motor, a drive operatively connected to said motor, a tape take-up ro-ller, a slippage device for drivingly connecting said tape take-up roller with said drive, an escapement for anchoring said roller against rotation with said drive including an escapement wheel having a plurality of teeth spaced from one another, a bar cooperating with said teeth to obstruct the path of movement of the same and thereby anchor the escapement wheel against rotation, and an arm operatively associated with said bar and in engagement with the tape in the tape when said printer advances the tape a line space initially to draw the tape across said projection field and in turn to move said bar into or out of position to obstruct the rotation of said escapement wheel.

3. A tape'moving device for drawing a tape through a projection ileld including a continuously operating motor, a drive operatively connected to said motor, a tape take-up roller, a slippage device for drivingly connecting said tape take-up roller with said drive, an escapement for anchoring said roller against rotation with said drive, and a control responsive to deflections in the tape, said control including two `supports above the projection field across which the tape passes, a pivotally mounted arm resting on the tape between said supports and drawing the tape upwardly across the projection field as it is supplied to the projection field and means operatively connecting said arm to said escapement to actuate said escapement into and out of posi- 1s open to permit the light rays from the lamp to respond to deflections tion to anchor said roller said drive.

4. A tape moving device for drawing a tape through a projection eld including a continuously operating motor, a drive operatively connected to said motor, a tape take-up roller, a slippage device for drivingly'connecting said tape take-up roller with said drive, an escapement for anchoring said roller against rotation with said drive including an escapement wheel having a plurality of teeth spaced from one another, a bar cooperating with said teeth to enter the path of movement of said teeth in turn to obstruct the rotation of said escapement wheel, supports above out. of rotation with the projection field across which the tape passes,

an arm in engagement with the tape between said supports to respond to deflections in the tape, said arm by its own weight drawing the tape upwardly across the projection eld, and means operatively connecting said arm with said bar in turn to actuate said bar into and out of position to obstruct the rotation of said escapement wheel.

5. 'I'he combination with a vertically moving tape, of a vertically extending projection eld, a lamp, optical elements for directing a beam of light downwardly from said lamp and laterally through the tape at said projecting eld, said lamp and optical elements being disposed to one side of said tape, a vertically extending rear projection screen, and optical elements for receiving the image impressed light beam leaving the tape and directing it upwardly and then laterally, thereupon above the path of movement of said tape and away from the screen and thereupon horizontally onto the rear face of said screen, said screen and latter optical elements being disposed to the other side of said tape.

6. The combination with a tape, of a vertically extending projection eld, a lamp housing, a lamp in said housing having a horizontally extending socket, .optical elements including a spherical mirror and a plurality of plano-convex spherical condensers for directing a beam of light downwardly from said lamp, an angle mirror for intercepting the downwardly directed beam of light and deecting it laterally through a vertically extending tape at the projection eld, an angle mirror beyond the tape for intercepting the image impressed light beam and directing it upwardly, a vertically extending rear projection screen, optical elements including two inclined mirrors and an objective lens unit for intercepting the image impressed light beam deected upwardly by said second angle mirror and directing it rst away from said screen and thereupon back onto the rear face of said rear projection screen, and a casing for said objective lens unit secured to, said lamp housing.

7. 'I'he combination with a marked tape, of a cut plano-convex spherical condenser having its plane face disposed in a vertical direction adjacent the path of movement of said marked tape, a lamp housing, a lamp in said housing, optical elements including a spherical convex mirror and a pluralityV of plano-convex spherical condensers for directing a beam of light downwardly from said lamp, an angle mirror for intercepting the downwardly extending beam of light and deecting it laterally through said cut condenser and through the tape, a second angle mirror for intercepting the image impressed light beam passing through the tape and defiecting it upwardly alongside of said tape, a rear projection screen,

and disposed adjacent to,

optical elements including a pair of inclined mirrors and an objective lens unit for intercepting the upwardly deflected image impressed light beam and directing it first away from said screen above the path of movement of said tape and thereupon back onto the rear face of said screen and a casing for said' objective lens unit secured to, and disposed adjacent to, said lamp housing.

8. The combination wtih a support, of a broad tape, a page printer for marking said tape, a lamp housing vertically slidable on said support above said printer, said lamp housing including a lamp, light rays from said lamp downwardly, guides for enabling the tape to move vertically upward without interfering with the vertical movement of said housing, a plano-convex condenser having its plane face movement of the tape delivered by said printer, and an angle mirror for intercepting the downwardly extending beam of light rays and deflecting it through said condenser and said tape to form an image impressed light beam.

9. The combination with a cabinet having a rear projection screen adjacent its upper end, of a broad tape, a page printer for marking said tape, vertically extending rods supported in said cabinet to extend upwardly from said printer, a lamp housing slidable on said rods to facilitate access to said printer, said lamp housing including a lamp, optical elements for directing a beam of light rays from said la'mp downwardly, a planoconvex condenser having its plane face extending vertically, a tape moving device for moving the tape upwardly from said printer across the plane face of said condenser without interfering with the vertical movement of said housing, an angle mirror for intercepting the downwardly extending beam of light rays and deflecting it through said condenser and said tape to form an image impressed light beam, and other optical elements for intercepting the image impressed light beam so formed and deecting it upwardly and then laterally onto the rear face of said projection screen.

10. The combination with a broad tape, of a page printer for marking said tape, a cabinet having a rear projection screen and a window, a projecting device, tape moving means for moving the tape as it is printed by said printer through -the projection field of said projecting device, a

lamp for said projecting device for forming "images of the markings on the tape and directing them onto the rear face of said screen, a plurality of advertising displays, means for successively exhibiting said displays at said window, a lamp for illuminating said displays, a motor, means for operatively associating said motor with said tape moving means and with said exhibiting means, and a control including an electromagnet and an electric circuit'including a switch, said lamps and said motor, said electromagnet being operatively associated with said printer to close said switch when the line circuit of said printer is closed in turn simultaneously to illuminate said lamps and initiate the action of said motor.

11. The combination with a cabinet having a removable wall and vertically extending supports adjacent to said wall, of a tape, a printer for marking said tape disposed in said cabinet, a lamp housing vertically slidable on said supports above said printer, a light aperture frame in said lamp housing, and guides for enabling the movement of said tape from said printer across said light aperture frame, said wall cooperating with optical elements for directing a beam of disposed adjacent the path of4 guides upwardlyand then back over said lamp said lamp housing to anchor said housing against vertical movement when said wall is in closed position. l

12` The combination with vertically extending supports, of a tape, a printer for marking said tape, a lamp housing vertically slidable on said supports above said printer, a light aperture frame in said lamp housing, and tape drawing means for drawing the tape .upwardly across said light aperture without interfering with the vertical movement of said housing.

13L\ The combination with a tape, of a printer `for marking said tape, a vertically extending projection\ field, a tape take-up device, a slippage device for drivingly connecting said take-up device with said motor, an escapement for anchoring said take-up device against rotation with said motor, and a control responsive to deflections in the tape when said printer advances the tape a line space to draw thetape across said projection field, said control including two supports above said projection eld across which the tape passes, a pivotally mounted bracket resting on the-tape between said supports and drawing the tape 25 across the projection eld as it is advanced by vvances the tape a line space said printer, and means operatively connecting said arm to said escapement to actuate said escapement into and out of position to anchor said take-up device in or out of driving connection with said motor.

14. The combination with a tape, of a lamp housing having a lamp and a vertically extending projection iield below the level of said lamp,

a printer below said lamp housing, means for drawing the tape upwardly in a vertical direction across said projection field to one side of r said lamp housing, optical elements for directing a beam of light downwardly from said lamp to the level of said projection iield and then laterally through the tape at said projection field, a rear projection screen above the level of said lamp housing, and other optical elements for receiving the image impressed light beam leaving the tape and directing it upwardly along the 'other side of said tape and then above the'path of movement of said tape and thereupon laterally onto the rear face of said screen.

15. 'I'he combination with a broad tape, of a page printer for marking said tape, a projection iield, and a tape moving device for drawing the tape through said projection eld with the lines of printed matter extending transversely of the tape and horizontally, said tape moving device including a continuously operating motor, a drive operatively connected to said motor, a tape takeu'p roller, a slippage device for drivingly connecting said tape take-up rollerwith said drive,`an escapement for anchoring said roller against rotation wth said drive, and a control responsive to deflections in the tape when said printer adinitially to draw. the tape across said projection eld and operatively connected to said escapement to actuate said escapement into and out of position to anchor said roller against rotation with said drive.

16. The combination of a tape, a lamp housing having a vertically extending projectionfield, a printer below said lamp housing, guides adjacent to and above said lamp housing, means for drawing said tape from said printer across said vdownwardly and directing it housing, optical elements associated with said lamp housing for directing a beam of light downwardly along one side of said tape and then laterally through the tape at said projection field, a rear projection screen above and to one side of the path of movement of said tape, and other optical elements for receiving the image impressed light beam leaving the tape and directing trupwardly along the other side of said tape, then directly above said lamp housing and nally back onto the rear face of said screen.

17. The combination having a vertically extending projection field, a tape take-up disposed above said lamp housing, a printer below said lamp housing, mleans also directly above said lamp housing cooperating with said take-up for drawing the tape from said printer upwardly and then back over said lamp housing, optical elements associated with said lamp housing for directing a beam of light downwardly along one side of the tape and then laterally through the tape at said projection field, a projection screen above and to one side of the path of movement of the tape, and other elements for receiving the image impressed light beam leaving the tape and directing it upwardly along the other side of the tape and then directly above said lamp housing and finally back onto the rear face of said screen.

18. The combination of a vertically extending tape, a source of light, a rear projection screen above the level of said source but to one side thereof, optical elements for directing a beam of light from said source downwardly, an angle mirror for receiving the beam of light so directed downwardly and directing it laterally through said tape, a second angle mirror for receiving the image impressed light beam leaving said tape and directing it upwardly, an angle mirror above the level of said source of light for receiving the image impressed beam of light thus directed upwardly and directing it downwardly and laterally back over said source of light, and an angle mirror directly above said source of light for receiving the beam of light so directed downwardly and laterally and in turn directing it laterally back across the path of the upwardly directed beam of light onto the rear face of said screen.

19. The combination of a vertically extending tape, a source thereof, optical elements for directing a beam of light from said source downwardly, an angle mirror for receiving the beam of light so directed laterally through said tape, a second angle mirror for receiving of light, a rear projection screen" above the level of said source but to one side of a tape, a lamp housing the image impressed light beam leaving said tape and directing it upwardly, a third angle mirror above the level of said source of light, an objective lens unit positioned at the focal point of the' light beam directed upwardly to invert the image impressed light beam and direct it onto said third angle mirror, and a fourth angle mirror directly above said source of light for receiving the imaged impressed light beam reflected by said third angle mirror and in turn directing it laterally back across the path of the upwardly directed beam of light onto the rear face of saidscreen.

AUGUST D. EITZEN.