US1022617A - Apparatus for the manufacture of photographic films. - Google Patents

Description

0L WINTERMEYER. APPARATUS FOR THE MANUFACTURE OF PHOTOGRAPHIG FILMS. 1 $322,617.

APPLICATION FILED OUT. 22, 1909.

- Patented Apr. 9, 1912.

2 SHEETS8HBET l.

WITNESSES: (94ft? n le nidafl INVENTOR M 5 K By 6i: ATTORNEY 0. WINTERMEYBR.

APPARATUS FOR THE MANUFACTURE OF PHOTOGRAPHIG FILMS.

APPLIOATION .IILED OCT. 22, 1909. 1,022,617. 1 Patented Apr. 9, 1912.

' 2 BHBETBSHEET 2.

INVEIITOH mazes WITNESSES:

yaw q I graphic Films, of which the following is a UNITEDSTATES ELI-ENT- clar on? or'ro wmrmmnmn, or LF LnxusEN, NEAR coLoenn-onnuanr, assmnon mo FAmaslvraimnmn vor' rnmnn; BAYER a 00.; or ELnExrELn'e mmNY, a

coarom'rxonxor eEnMAN-Y.

-AP PA RA TUS FOR-.THE MANUFACTURE OF 'PHOTOGRAPHIC FILMS.

To'all whom it may concerns Beit known that' I, O'rro VVINTERMEYER, tizen of the German Empire, residing at everkusen, near Cologne, Germany, have invented newand useful Improvements in Apparatus for the Manufacture of Photospecification. .My'mventm'n relatesrto new and useful improvements in mach nes or apparatus for the manufacture of photographic films, and

moreparticularly to machines for making or forming the strip or sheet of composition materialJs'uch for instance as celluloid, which acts as the carrier or support for the sensitized emulsion. p

The object of the invention is toprovide a machine for the purpose set forth which will be simple in construction, eflicient ,in operation and which will permit of the formation of a continuous strip or sheet of the film from a batch or batches of raw material subjected to the machine.-

The invention consists in the improved machine to be fully described hereinafter and the novelty of which will be particu- .larly pointed out and distinctly claimed.

- I have fully and clearly illustrated my invention in the accompanying drawings to be takenas a part of this'specification and Fi re 1 is a view in side elevation and partly in sectionof a machine embodying my present invention. Fig. 2 is a view in side elevation of the opposite side of the machine from that shown in Fig. 1,1-the'dry- -ing casing being shown in longitudinal section. Fig. 3 is a sectional ,view on the line 3-3 of Fig. 2.

Referring to the drawings charactersof reference'.A designates generally a drum constructed of a pair of annular elements 1, 1 spaced apart from'each other and preferably formed of bar metal which is I-shaped in cross-section. Secured t0 the internal flanges of these annular elements'is a continuousostrip of sheet metal 2 or. other suitable material, which forms the periphery of the drum and closes the circumferential space between the said annular elements, the

inner face of this shell forming the surfaceupon which the film-is formed. The size of the drum and the width of the strip -2 are Specification o! unwritten I Application filed October 22, 1909. Serial l i'o, 15 24,000.

immaterial but are usually proportioned. according to the width and length of the film to 'made,'and,- of course, it will be understood that the inner face of the shell is madesmooth and-unbroken in order that the.filn 1 when cast or formedwil-l have asmooth and unblemished surface.

Suitable means is provided for revolving the drum on its longitudinal axisysaid means consisting preferably of spaced bearin rollers3, 3, mounted upon shafts 4, 4, the latter being journaled inthe' upper ends of standards 5, 5, s'aid rollers'3, 3', having circumferential flanges 6, 6. The drum-- Patented A r. 9, 1912. r

rests and is revoluble upon the rollers 3, 3'

and is arranged so that 'the outer heads or flanges of the barsl1,l rest upon the peripheries ofsaid rollers, the flanges on the latter servingto engage the said bars and prevent lateral dislodgment of the drum from the rollers during'the evolut-ion dfthe drum.

The drum is revolved by driving one of the rollers 3, 3- in any suitable manner, one of the shafts 5, 5 being provided with a pulley 7, or other transmission mechanism.

' Mounted upon suitable vertical standards 8, 8 is a hood which envelops the shell of the drum throughout the greaterportion ofits circumference, said hood comprising a circumferential portion or wall 9 arranged out side of thedrum, but spaced therefrom and depending skirt portions I0, 10 which project inwardly toward the axis-of revolution of the drum a sutii'cient distance to'completely cover the shell of the drum and terminate at a oint, between the said shell andv the center o the drum. The ends 'of this hood termidate at a-point belowthe horizontal diameter of the drum so that the great portion of the shell of the drum is enveloped by the. hood and said skirt portions are connected within the shell by a plate or partition 11 so that a ortion of the shell is included with-- in a tu ular chamber to which air may .be.

supplied througliv the opening 12 and find,

exit therefrom through the opening 13.

Suitable means is-provided for heating the drum, and, while a number of expedients can be employed for this purpose, I'prefer to use the construction which I will now describe.

Located in the space between the part 9 ofthe .hood and the outer surfaceof the drum, and preferably down between the outer projectingparts of the bars 1, 1 1s a meeting-coil of ipe 14 the legs 'of'which extributing it upon the shell during the revolution of the drum. \Vhile various means might be devised for accomplishing this step, I prefer to employ a feed ladle or trou h 15 located within the drum adjacent the ttom portion thereof, and extending transversely of the shell, said trough beinr, pivotally supported on suitable bracket arms 16 secured to standards 17 arranged on opposite sides of the drum, said trough being so supported on said brackets that the comsition may spread therefroln upon the inner surface o f the shell.

In operation the batch spreads upon the inner surface of the shell from the feed trough 15 and the shell revolving in the direction of the arrow, as shown in Fig. 1, continuously carries the batch up within the hood, the batch, owing to the movement of the drum, spreading and flowing into a thin, film. As the film-moves up within the hood the air flowing therethrough and the heat supplied. from the heating coil, evaporate the more volatile constituents of the composgzipln and leave the finished film upon the s e Means is tprovided for continuously removing the nished film from the shell, and this means may consist of a receiving spool or reel 19 supported on a horizontal axis within the shell, said spool being provided with a gudgeon 20 journaled in a bearing 21 at the upper end of a standard 22. Any suitable means is provided for turning the spool or reel as a hand crank 23 connected to said gudgeon.

Mounted in the upper ends of the standards 17 is a horizontally disposed roller 24 extending through the .drum transversely of 'the latter, and with its periphery closely adjacent the inner surface of the drum shell. When the film-forming process is being carried on, the hatch being deposited on the shell, is formed into a film as abo e described, and theportion first formed noves around beneath the roller 24, when it. is detached from the shell and carried up sad attached to the reel 19, upon which each sheet of film may be wound as it is formed.

Among the advantages of the above construction the following may be mentioned:

It will be seen that by forming the film on the inside ofthe drum a compact apparatus may be provided "for the reason that the feeding device for the composition may be located within the confines of the drum at the bottom thereof instead of being located exte rior to the drum and above the same, as would be the case were the film formed in the exterior of the drum. This is of advantage for the reason that the height of the machine is reduced. The apparatus also provides simple and effective means for heating theshell and theofilrn thereon, so

that the heat is brought into intimate contact with the film while being formed to thoroughly evaporate the volatile substances therefrom. It will also be parent that the filmis formed continuous y, its length depending solely upon a continuous feed of the film composition, and the number of revolutions the shell or drum is permitted to make. I 1 What I claim and desire to secure by lat-- ters Patent of the United- States is 1. A machine for formingfilm comprising a revoluble shell having an-internal continuous film-forming surface and open ends,

means for heating the shell, means for depositing materialupon said surface, and a Q I chamber through which the shell revolves and inclosing said heating means. a

2. A-machine for forming film compris- 7 ing a revoluble shell having an internal continuous film-forming surface and open ends, means for deposit-ing material upon said surface, a chamber through which a portion of the circumference of the shell moves,

and a heating coil in the chamber exterior of the shell.

3. A- machine for forming film comprising a revoluble shell having an internal continuous film-forming surface and open ends,

means for heating the shell, means for de positing material upon said surface, a chamber inclosing a portion of said shell and the heating means, and means for permitting a circulation of air through the chamber.

4. A machine for forming film comprising a revoluble shell having a continuous in-' ternal film-forming surface, means for continuously depositing material upon said sur-v face, and means for continuously stripping completed film therefrom during the revolution of said shell. a

5. -A machine for forming film comprising a revoluble shell havinga-continuous internal film-forming surface, means fordepositing material upon said surface, means for drying the film on said surface during the revolution of the shell, and'means for stripping film from the surfac I 6. A machine for forming in comprising a revoluble shell having a continuous internal film-forming surface, means for depositing material upon said surface, means fort drying the a stripping roller a- .'cent the surfaicgfnr removing the film from the "shell, and a reel for receiving the stripped film, said depositing inean's roller,

and reel being operable Within said shell.

A machine for-forming film comprising a revoluble shell open at its ends and -havfi11g an internal film-forming surface,

rollers upon which said'shell is supported and revolves, means at the bottom of the t shellpfor'depositl'ng material on said surface, a drying chamberinclosing the upper portion of the shell, 21- str-ipping roller ad acent and in advance of the depositing means, and a reel projecting Within the shell for receiving the stripped film.

8. A machine for forming film, comprising a l-evoluble shell having a continuousinternai film forming surface, and means for stripping the completed film therefrom.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

OTTO W INTERMEYER. a 3.

Witnesses: p OTTO Kenn},

CHAS. J. WRIGHT.

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