US1864238A - Film printing machine - Google Patents

Description

June 21, 1932. A. FLINT ET AL FILM PRINTING MACHINE Filed July 5, 1928 2 Sheets-Sheet l JAG/(6 .150

Away? Z/MME/Q/IMA INVENTOR5 ATTORN EY June 21, 1932. A. FLINT ET AL 1,364,238

A FILM PRINTING MACHINE Filed July 5, 1928 2 Sheets-Sheet 2 nnnnnnnnnn uuuuuclnz upu INVENTOR5 5% ATTORNEY Patented June 21, 1932 UNITED STATES PATENT FF-IE ORS TO FOX FILM YORK \ ASI-ISER'FLINT, AUGUST ZIMMERMAN, AND JACK LEO, OF NEW YORK, YL, ASSIGN COEPGRATION, OF NEW YORK, N; Y., A CORPQR-ATION E" NEW" FILM PRINTING MACHINE Application'filed- July 3, 1828. Serial No. 290,34

r This invention relates to continuous feed film printing machines in which a printed negative film has its. subject. matter duplicated photographically upon a sensitized blank positive film, juxtaposed and driven synchronally therewith.

In certain classes of films, used in. picture music, etc., that have been imprinted on the Such stripe Of soundindicationsis preferably printed on the film alongone ofits marginal edges, interja cent the x usual openings and' picture portion and is quite .narrow to avoid encroaching. on the picture space.

It has hltherto. been: custon'iaryto make: two separate exposures of the SGDSIlZlZGd hlrn,v

oneto receive the pictorial subjects and the other thesound marks, each being independ- It istherefore an vention to provide a the printing, that is thepictorial llllllStIYfltlOl'lS f ently printed at diflierent times;

object of the present in- .mechanisnr by which all m) andgsound stripe, isperformed simultaneou ly ata single operation.

A further feature is in the provision of a:

device which may be readily attachedftothe common printer usually employed and which is fully complete in itself to perform the printing operation of the sound stripe tokens.

These advantageo us objects aresecured by thenovel construction and combination of parts hereinafter de scribed. and: shown n the accompanying drawings, formingan essential portion of: H118 disclosure, and in which Figure '1 is'a side elevationalrview of an embodiment of the J application.

invention, indicating its Figure 2 is an. enlarged fragmentary sec tional view of the nec'ted parts.

Figure 3 'isa pers in detail.

machine head and conpective view of the head Figure 4 is a plan view of a piece of the film as printed.

Referring more in detail to. the drawings, the supporting-frame of, the-machine is, designated by the numeral on whichais mount-'- ed a telescopic funnel. 1-1 having.-alight-en1-- closing housing 12 at one end, the same be ing adj ustably carried by rods.- 13- fixed in a bracket secured to the frame. 7

At the opposite, front. end of the funnel 11, isan adapter ring l t-recessed :at its rectangular front end to receiveahard felt insert 15 held in place by a plate-16-. 1

Alight-tight, hollow throat 1.7, provided with a removable cover at one side, is firmly held in the felt member 15 and is formed. with flanges at its-outer end curved to engage the wall of a cylinder 18 fixed therein, the cylinder having an opening 19' in register with theopening inthethroat 17, thelower edge of the opening being approximately in the axial plane of the cylinder, and itsupper edge substantially tangent to the bore, as" seen in Figure2. I

Rotatably mountedonthe ends of the cylinder 18 are plate sprockets 20- andn21. provided with teeth: toengage the: perform tions A in the margins of a film B1,: (see-Fig-- ure 4) the same bearing a series of closely adjacent picturesC and a stripe of sound indication D, when completed.-

- One of the cylinder sprockets21 is provided with a hollow hub 22 having a flange to receive screws 23, by which the other sprocket 20 is secured, the sprockets being mounted so as to rotate in. unison. freely onthe cylinder.

Thecyli-nder 18 has another opening-in the wall opposite the. opening 19., in: which is secured a block 24,- havinga narrow-wedgeshtaped aperture 25-, substantiallyincregi-ster with the passage in the throat 17, thiss-block; having a curved peripheral surface-extend ing slightly. beyond the periphery; of. thecylinder in which it is set.

A negativeor master film isdelivered from a reel 26 supported by a post 27 on the frame 10 anda'positive, sensitized. blank film is disposed upon! a mating reel 28 supported: on an arm 29' reaching from the post 271'.

The positive film is passed through a cleaner, designated generically as 30, and thence under a guide roll 31, where it is brought into physical engagement with the negative film, which has been passed around tensioning rolls 32-32, carried on an arm 33 adjustably clamped to the post 27.

The guide roll 31 is rotatably mounted on the upper projecting end of a frame member 35, and the films passing under a pressure roll 36, are carried on a printing gate 87, pivoted at 38 to a lever 39 in turn pivoted to the frame member 35 at 40 and urged towards the cylinder 18 by a spring 41.

The roll 36 makes contact with the superposed films near the upper-edge of the block 24, and the inner adjacent edge of the latch is in contact with the films throughout the length of the block, thus holding the films tensionally thereagainst as they pass the aperture 25, through which light rays pass from the lamp housing to cause a printing effect of the sound stripe.

The latch carried lever 39 is arranged to be moved outwardly, away from the cylinder, by a finger catch 4-2 at its upper end.

The positive film is separated from the negative by passing over rolls l8il, while the negative film passes below the cylinder 18, around guide rolls 45-46%? to be again brought into close relation with the negative film, and together they are carried past a printer 48 against which they are held by an aperture gate 49, these elements being well known.

From the printer the films pass over takeup sprockets 50, against which they are held by rolls 51 52 carried on a spring actuated lever 53 at the lower portion of the member 35, after which the films are wound upon take-up reels 5 i55, respectively.

It will be understood the teeth of the sprockets 2021 enter the perforations in both films so that relative movement is prevented, and that the sound record is printed simultaneously with the pictures, but at points slightly spaced apart along the length of the films, the sound record leading.

From the foregoing it will be seen that the invention resides in the incorporation with a continuous film printer of any standard type, of an attachment or built in mechanism whereby a sound stripe is produced, thus eliminating the necessity of a second, separate run of the films to obtain the same.

Although the foregoing is descriptive of the best known embodiment of the device, it will be apparent that minor changes in the shape and arrangement of parts may be made, such as may be indicated by good mechanical practice, without departing from the general scope and spirit of the claims hereto appended.

Having thus described our invention, what 15 claimed as new and desired to secure by Letters Patent, is:

1,se4,aes

1. The combination with a standard film printing machine, of a sound printing attachment comprising a separate and independent light housing, including a hollow cylindrical head having openings in its peripheral wall, a tubular connection between said housing and one of the wall openings, a block fixed in the other opening, said block containing an aperture registering with the first named wall opening, means to resiliently press moving films against said block to cover the aperture, and sprockets revoluhle on the axis of said head to engage perforations in the margins of the films.

. 2. In combination with a machine to photographically print a blank film from a master film, said machine including feeding and ten sioning means for the film, of an independent sound printing device comprising a lighting means adjustably secured to said machine, a telescopic funnel leading from the lighting means, said funnel having a section fixed on the machine, an adapter on the end of said section, said adapter having a rectangular recess in its outer face, a yieldable element secured in the recess, a hollow throat adjustably engaged in said element, a head fixed on said throat, said head having an aperture over which the films are passed to print a sound stripe, and means for resiliently maintaining the films in contact during their passage over the aperture, the aperture being in direct registration and open to said lighting means.

3. The combination with a standard film printing machine, of a sound stripe printing attachment comprising a hollow cylindrical head having opposed openings in a plane transverse and above its longitudinal center, a tubular throat of rectangular cross section fixed to said head in register with one of the openings, :1 yieldable support carried by the machine to adjustably receive the opposite end of said throat, said support registering with the lighting means of the machine, a lighting means, an apertured block fixed in the other opening of said head, and means for guiding a film when moving over the aperture in said block.

at. The combination with a standard film printing machine, of a sound stripe printing attachment comprising a hollow cylindrical head having opposed openings in a plane transverse and above its longitudinal center, a light house funnel, a socket carried on the end of said light house funnel, a hollow throat slidable in said socket, a felt insert therebetween, said throat being fixed on said head in register with one of the openings therein, a raised and apertured block fixed in the other opening, means to resiliently press passing films against the block over its aperture, and sprockets revolubly mounted on the ends of said cylindrical head to engage the marginal perforations in the films.

5. The combination with a standard film iii rinling machine, of a sound printing attachment comprising a separate and inde ndent light housing, including a hollow cylindrical head having opposed openings in its peripheral wall in a plane transverse and offset from its longitudinal center whereby liglht rays signatures.

JACK G. LEO. ASHER FLINT. AUGUST ZIMMERMAN.

Images