US1666304A

US1666304A - Projecting machine

Info

Publication number: US1666304A
Authority: US
Publication date: 1928-04-17
Anticipated expiration: 1945-04-17

Description

April 17, 1928. 1,666,304

B. A. PROCTOR PROJECTING MACHINE Filed July 31. 1924 INVENTOR fiarfwz Praazwf' ATTOR HEY Patented Apr. 17,1928. 1 H i p I U N E D; STAT E S: if i 1 .nan'ron A. rnooron, or new YORK, in .Y., assionon, BY MESNE ASSIGNMENTSIQ'IO NEWS PROJECTION oonronii'rionor NEWYORK, N. Y., A conronn'rron or mzw YORK. I PBOJECTING .MACHINE.

Application filed'July 31, 1924. Serial No. 729,308.

This invention relates to improvementsin Tying rate of feed of the ticker printing on an apparatus for projecting a continuous. the tape and free to slipwhen the feed is I or progressive length of material having interrupted. I

configurations thereon upon a surface Where It is a further object of the present inven- 5 said configurations will be visible in enlon to provide means for Winding up the purged j ti tape after it has been fed past the pro- Among the objects of the invention it is jecting lenses which Winding up means will aimed to provide means for projecting a automatically stop, start, and vary its speed so series of progressive configurations siniulaccording to the operation of the feeding lotaneousl'y on a surface, ineansfor projectmeans. 7

ing the respective sections of the configura- It is Still further contemplated to provide tions so as to produce on a surface a connovel shielding means in association with the tinuous progression of configurations in en- PIQJQGtmg lens for limiting the divergence larged form, and in their original successive of the respective rays projected from the adjacent positions relative to one another, various lens whereby to prevent superimwitliout indicating the line of deinarkation position on the screen of one of the proof the respective sections, and means for grossing configurations upon the other as drawing the length of material having the. they pass by the respective lens. configurations thereon through the pro ec These and other advantages, capabilities 2o tor at any varyin sp d t hi h th see and features of the invention will appear tions of the material may be fed to the pro from the subjoineddetail description of jeclor, and to maintain the length of mateembodiments therefor illustrated in the acrial taut when the feeding is interrupted. coinpanying drawings, in which it is a purpose of this invention to pro- Flgurel is a plan View of the complete,

2 vide means for projecting clear and non-suy m led vi e;

perimposed enlargements of progressing Fig. 2 is an enlarged plan view of the configurations such as panoramic views, PTOj O OI;

ticker tape quotations, sport results, et cet- Fig. 3 is a side elevation of the completeera, upon a screen. i 1y assembled device as shown in Fig. 1; so Specifically it is aimed to provide anap- :Flg. 4 is an enlarged side elevation of the paratus for projecting printed stock quotaprojector as shown in Fig. 3; v tions from a ticker tape onto atranslucent Fig. 5 is an enlarged View of the conscreen whereby the quotationswillbe visible ensers or lenses, showing the configurain enlarged characters. tion thereof and the location of-the moving 35 Further it is ain'ied to project a series of tape and guide means therefor; and

progressive printed stock quotations simul- Flg. 6 is a detail View of the take up taneously on a screen so as to allow for mechanism for drawing the tape past the relative COli'lPflllSOI] thereof in respect to the projectoiz, 9o quotations immediately preceding or fol- Referring now more particularly tothe 4o lowing; reference characters in the drawing, nu-

tlitill further itis aimed to provide asemetal 1 illus rates a table or stand upon ries of projecting devices, simultaneously which the ticker 2, the projecting appara- 1 operative but so positioned as to project a M183, and the Winding device 4 are $111 05 continuous progression of stock quotations ported. At a prerequisite distance from the 45 in lheir original successive adjacent posiprojector there is located a translucenttions in enlarged form, without indicating screen 5, upon which the configurations the line of deniarkation of the relative sec: P U d by e t ker are projected inentions of the tape being drawn along and past larged form.

ho series of projecting devices. Referring to Figs. 1 to 5 inclusive, the 50 it is further aiined'to provide a friction projecting apparatus 3; consists of a pludrive for drawing the tape past the projectrality of individual projectors 6 each caing devices at a speed controlled bythe vapable of acting as a complete projecting apltd Jill) paratus limited scope but so combined as will be disclosed as the description of the invention proceeds, as to produce an effect similar, to one large PI'OjGClLOl WhlClI obviously is impractical toconstruct and prohibitive in price for the purpose herein specified.

Each projector as shown in Figs. 1 to 4 inclusive is enclosed in position in the large cabinet or frame 6, the number of individual projectors being unlimited and dependent only upon the length of the ticker tape desired to be projected at one time on the screen. The projector consists of a base portion or support 7 upon which is carried a stereopticon lamp 8 which may be electri- 'cally or gas operated, or if desired of the carbon arc type. To. the rear of the stereopticon lamp there is positioned a concave reflecting mirror 9 supported by a bracket 10 attached to the rear wall 11 of the cabinet 6. This reflecting surface directs-the light rays developed by the lamp 8 towards the condenser lens series 12 consisting of a piano convexlens 13, a water cell lat of Val ing degree of thickness, and a plano-co1ivex lens 15 having flattened portions 16 and 16 normal to the horizontal axis thereof. This condenser lens series 12 is contained in a lens holder 17, supported on the base 7, which holder partially covers the portions 18 and 18 of the lens 15 normal to the vertical axis of said lens.

lhe water cell let is so arranged to allow for a definite amount of fluid contained therein for maintaining the required degree of coolness, or if desired, a continual circulation from an outside source may be arranged.

Attached to the lens holder frame 17 and arranged to rest on the base 7 in front of said holder,-there is positioned a rectangular shield 19 having a rectangular slot or aperture 20 therein. all rays diverging from the condenser lens except those directed towards the area covered by the aperture 20. Adjacent to and directly preceding the shield 19 at portions directly above and below the aperture 20 there are positioned guide strips 21and21.

which are attached in any well known manner such as by rivets or by means of direct arc welding to the shield 19. In the space between the shield 19 and the guide means 21 and 21 a tape or carrier 22 having configurations such as printed nu 'nbers or symbols thereon ispassed, the tape being directed by the shield and guide strips so as to pass directly in front of the aperture 20 on the shield whereby to be in the path of the rays diverging from the condenser lens 12. It is to be understood that the shield 19 is constructed to be of a length suilicient to cover the wholeseries of projection de vices in the apparatus.

This shield serves to block Arranged within the proper focal length from the condenser lens 12, there is positioned an objective lens series 23 in front of the projecting condenser series 12. This objective lens series 28 is fixed. at the forward end 24- of the container 6, so as to be in direct line with the rays passing through the aperture 20. This objective lens series which is of the type usually adopted in screen projection consists of a collapsible holder 25 having

sections

26 and 27 adj ustably positioned by a set screw 28, each one of said sections containing a lens therein. In the rear section26 of the holder there is positioned a combination of a flint glass convex lens 28 and crown glass concave convex lens 29, while the forward section contains a flint glass convex lens 30 in combination with a double concave lens 31. Since the function of this objective lens series is commonly known a detail descrip tion of their operation will not be necessary.

From this objective lens series the image- .pro ected from the tape is directed on the screen 5 which is composed of a translucent material, by a system ofinirrors. and a shield. Since the tape or carrier section 22 passes a series of these individual projecting de vices, a ,novel means of synchronizing the projection sin'iultaneously and clearly into one complete progression configuration of the various portions of the tape section 22 passing all the projecting devices will now be described.

1n the table 1 at a predetermined prerequisite distance from each of the projecting objective lens series ,23 except the center series, these are positioned mirrors and 32' angularly displaced to direct the rays from the objective lens 23 to a second series of

mirrors

33 and 38 pivotally mounted to the table 1. By means of this arrangement, the rays will be diverted from the objective lens 23 for example at the top of Fig. 1 to the mirror 32 from whence they are further diverted to the pivotally adjustable mirror 38 which subsequently directs and aligns the rays on the screen defining the image of the configuration 34 on the tape in enlarged form on the screen.

However the respective projecting condenser lens series would ordinarily divert the rays in juxtaposition upon each other, on their passage through the horizontally disposed aperture 20 in the shield 19. To prevent this there are preferably used a series of knife edged ray dividers or shields 235 which are fixed to the base 7 adjacent the

guide strips

21 and 21.

These knife edged ray dividers or shields 35 are preferably composed of blackened wood or metal colored with a dull shade, the dividers being cut off at their forward extremity to any desired angle whereby the rays tending to diverge beyond this angle Add are out off. The ray dividers are slidable;

jecting .mechanism by an angled bend 38" which locates theprinted face of the tape towards the objective lens. From there the tape passes along the guide stripsQl and 21 in front of the aperture 20 of the shield 19.

The blade 38 indicated in Fig; 1 forms a guide for gradually bending the tape from a horizontal plane to a vertical plane and to twist the tape to the right of its original pathof inoveinent. In addition to forming a guide, the blade 38 also forms an extended friction surface between'the ticker 2 and the pi'o ectlng positioii so that when the ticker resumes operation, after having been arrested, the resistance offered by the blade 38 will be sul'licient, initially to form a loop between the ticker 2and theblade 88 so that, the vibrations transmitted to the tape when the ticker operates will, at least partially, be absorbed by this loop, the re-wind reel l1 cooperating with the blade 38* to maintain the tape taut during its passage through the projecting position. This friction creating surface also functions to prevent the sudden arrest of the tape upon the arrest of the-ticker feeding means, cooperating with the tape, Wind-up reel and driving means, gradually to bring the wind-up reel to rest and therewith gradually bring the tapeto rest.

horizontally positioned reel 40 having

guide disks

41 and 41 therein, the reel being rotated on. a shaft 42 loosely mounted in the bearing 48. On the bearing 43 there is further mounted a disk 44 having a leather ring 45 mountedon its periphery'and in frictional contact with the disk 41 of the reel 40. To this disk 44 there is fixed a Worm gear 46, both disk and gear rotating on the shaft 47 fixed in the bearing bracket 43.

The gear 46 is driven by means of a worm,

48 mounted on the shaft 49 which is directi ly rotatable With the motor 50 or any other suitable driving means.

The winding operation is carried out as j follows. The motor 50 rotates the worm {i8 at any predetermined speed, which motion is transmitted to the worm gear 46. This quently rotates therewith, carrying the leatherring 45 around towards the winding reel 42, with which the collar is'in'frictional contact. However since the contact of the leatherring 45 and the reel 42 is'frictional the motion ofthereel is dependent only upon the degree of slack of the tape being Wound on said reel and allows the ring to slip when" the feed of the tape is'interrupted,

taking placefor instance, when no quotations are being transmitted. This frictional duce a'rotation of the winding-reel 42 only when the tape being wound thereon is slack. By this means the movement of the tape with the printed coi'ifigurationsthereon can be controlled tocooperate with the rate of printing and release of the tape from the contact ofucourse is'adjusted so" as to proticker, and the wind up reel will be stopped, i

started, and its velocity changed tocorrespond to the operation of the feeding means. I In other words, whenever there are no quotations I transmitted and the ticker feeding means thereby interrupted, tensioiiwvill' be created in the portion of the tape extending from the ticker feeding means to the wind up r'eeldue to the briefly COllllllllled operation of the wind up reel, WlllCll'lEBllSlOl'l will cause the wind up reel to be interrupted, and in turn, as the tension is relieved, upon the ticker feeding means again operating,

the windup reel will again be caused to operate. 1

Noting especially Fig. 5 of the drawings the condenser lenses 15 which. are of the plano convex type having flattened portions 16 and 16" normal to the horizontal axis, it is to be seen that by flattening these portions 16 and 16, that the appearance of three or more circles depending on thenumber of" projectors in use, upon the series pre- "vented. By cutting olf. the end portions to make tl'ieflattened surface, the rays which ordinarily diverge through the extren'iities of the lens near the periphery are eliminated and clear images of the respective sections of the tapein position before the different I lenses are projected on the screen.

The'operatioi of the device proceeds as follows. The light from. the stereopticon lamp 8 is directed forward througl'i the condenser lens series 12. The light directedtowards the rear of the lamp is reflected through the condenser lenses 12 by the mirror. 9 and located at the-rear of the lamp. The water cell 14 iii the condenser series is used to cool the lenses. as previously stated. Since a shield 19 is disposed in front of the condenser lenses, the light passing therefrom is limited in its directionby the slot 20 contained iii the shield. The tape is passed The plurality of projectors. simultaneously produce imagesof the tape passing by the aperture 20, but tend to direct their rays so that the image of the ends of the tape with regardto the ends of each projector section will generally be su 'ierimposed upon one another. To correct this difficulty the knife enlarged form. the rays strike the re spective knife edge shields, the sections thereof tending to. spread beyond the angle of the front face of the shield, are cut off by. the shield with the result:- that the rays of each respective condenser lens section are forced to pass ing memberof the objective lens series without any superimposition of one upon the other. v I

The image projected into the respective objective lens is reflected onto a mirror 32 angularly disposed upon the rearfranie 1 so as to further reflect the image on the movable mirror 33 angularly disposed to the mirror 32 and pivotally mounted. on the main frame for adjusting the location of the image when thrown onto the screen. The objective lens at the center of the projecting device naturally does not require a mirror for reflecting and directingthe image forward therein upon the screen.

The tape as previously stated is carried along the slot: or aperture 20 between the

guides

21 and 21 by the winding reel 42 which is operable by the friction of the leather ring to. rotating against the disl;

thereon. If the ticker does not produce or feed the tape, which subsequently becomes taut between the ticker and the winding reel, the motion of the winding reel is stopped while the leather ring 45 on the periphery of the disk td continues. to rotate along being frictionally in contact with the disk until a, slack is formed again by the resumption of the feed of the ticker at which time the winding reel is again rotated by the frictional contact with the leather ring. It is to be noted that by this means the winding can be automatically adjusted to any variable speed of the tickerat any movement in operation of the latter and furthermore, that the slippage will compensate for the increasing speed transmitted tothetape as the tape wound on the wind-up reel 4: forms a roll of increasing diameter.

It is obvious that various changes and directly into the correspond ing a printer the tape to said pro ecting means as the neeeeoa 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; In a device of the class described, the combination with a length of materialhaving configurations thereon, of a plurality o'tlenses disposed in a row substantially parallel to and in front of said length of material and spaced therefrom and from one another for simultaneously projecting said length of material in separate succes sive adjacent positions, a screen spaced from the front of said lenses the distance required to receive the images of the successive adjacent portions of the length of material being projected in their original successive adjacent positions relative to one another and a shield positioned in front of the length of material and between the optical axes of adjacent lenses to limit the direction of the rays carrying the images projected therefrom.

2. In a device of the class described, the combination with a length of material havcontigurations thereon, of a plurality of lenses disposed in a row substantially par allcl to and in front of said length of material and spaced therefrom and from one another for simultaneously projecting said length of material in separate successive adjacent positions, a screen spaced from the front of said lenses the distance required to receive the images of the successive adjacent portions of the length of material being projcctcd in their original successive adjacent positions relative to one another, a shield iositioned in front of the'length of material and between the optical axes of adjacent lensesto limit the direction of the rays car-' rying the images projected therefrom, and means for spacing the shields a greater or less distance from said length of material according to the focus of the lenses relative to the length of material.

3. In a device of the class described, the combination with a stock quotation tape having quotations printed thereon, of means for projecting said quotations, a ticker havand feeding means for feeding printer operates, said pri'iject ing means projecting said quotations both when said tape is moving during the feeding action and while it rests when the printer is at rest, a wind-up reel, means for winding up the tape onto said reel after it has been delivered by said ticker feeding means, said wind-up reel cooperating with said ticker feeding means to create an increased tension in the portion of said tape between said ticker feeding means and said wind-up reel whenthe operation of said ticker feeding means is discontinued while said wind-up reel continues to operate, and means sensitive to said increased tension to cause the operation of said wind-up reel to be stopped by the increased tension thusereated.

4. In a device of the class described, the combination with a length of stock quotation tape having configurations thereon, of means for projecting images of said configurations, a ticker having a printer and feeding means for feeding the tape to said projecting means, said projecting means projecting said quotations both when said tape is moving during the feeding action and while it rests when the printer is at rest, a. wind-up reel, and frictionally operable drlving means cooperating with Stllfl wind-up reel for drawing the tape pastthe projecting means at the rate developed by the feeding means and winding up the tape on said wind-up reel, said driving means being free. to slip relative to said wind-up reel when an increased tension is created in said tape upon the arrest of said feeding means thereby causing the wind-up reel to stop until the tension is again relieved. i

5. In a device of the class described, the combination with a stock quotation tape having quotations printed thereon, of means for projecting said quotations, a ticker having a printer and feeding means for feed ing the tape to said projecting means as the printer operates, said projecting means projecting said quotations both when said tape is moving during the feeding action and while at rest when the printer is at rest, a wind-up reel, means for actuating said wind-up reel independent of said feeding means to wind the tape up onto said reel after it has been delivered by said ticker feeding means, said actuating means cooperating with said feeding means to create an increased tension in said tape when the operation of said ticker feeding means is discontinued while said wind-up reel continues to operate, and means sensitive to said increased tension to cause the operation of said wind-up reel to be stopped by the tension thus created.

6. In a device of the class described, the combination with a screen, of a partition parallel to and in back of said screen and having an elongated aperture therein, a length of material having configurations thereon, means for feeding said length of material adjacent to said partition and past said aperture, three condensing lenses disposed in a row parallel to and in back of said length of material for projecting light rays through said aperture and through the length of material passing said aperture, three objective lenses disposed in a row parallel to and in between said length of material and said screen and spaced from one another and from said length of material and said screen, the intermediate i of said ob ective lenses pro ectmg the images of the configurations on the intermediate portion of the length of material directly onto the,

7. The combination with a ticker having:

a printing mechanism for printing news items on a tape and a feeding mechanism for in'iparting a feeding impulse to the tape after each printing impression, of aproject- .ing mechanism to which the tapeis fed by said feedingmechanism, a wind-up reel for winding up the tape after it has been delivered from said pro ecting mechanism, and drive means independent of said feeding mechanism and operating at a uniform rate,

of speed for driving said wind-up reel to wind up the tape as the same is fed thereto by the feeding means, said drive means being free to slip relative to said wind-up reel so that the slippage Wlll compensate for the increasing speed transmitted to the tape as the tape wound on the wind-up reel forms a roll of increasing diameter and being oper able after said feeding mechanism comes to rest to take up the slack in said tape and cause said wind-up reel thereupon to come to rest.

8. The combination with a ticker having a printing mechanism for printing news items on a tape and a feedingmechanism for imparting a feeding impulse to the tape after each printing nnpresslon, of a pro ectlug mechanism to which the tape is fed by said feeding mechanism, a wind-up reel for;

winding up the tape after it has been delivered from said pro ectmg mechanlsm, and

drive means independent of said feeding mechanism and operating at a uniform rate of speed for driving said wind-up reelto wind up the tape as the sameis fed thereto by the feeding means, said drive means being free to slip relative to said wind-up reel so that the slippage will compensate for the increasingspeed transmitted to the tape as the tape wound on the wind-up reel forms a roll of increasing diameter.

9. The combination with a ticker tape having printed thereon a single row of successive configurations,of a plurality of adja cent light apertures disposed to the rear of said tape so that the light rays from said apertures will simultaneously be projected through successive adjacent portions of the lit) tape and project images of the printed matter formed on said tape, a lens for each light aperture to receive the images projected from its light aperture, :1 screen for receiving the images of the printed matter so projected, and means for preventing. the superimposition upon said screen of any image esa-see upon another image including refiectin means for intercepting the images projecte from some of said lenses and directing them 10 onto said screen toreproduce the printed matter on said tape in its original order of printing.

- BARTON A. PRGCTOR.