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Publication numberUS1907252 A
Publication typeGrant
Publication dateMay 2, 1933
Filing dateDec 20, 1929
Priority dateJan 31, 1929
Publication numberUS 1907252 A, US 1907252A, US-A-1907252, US1907252 A, US1907252A
InventorsDebrie Andre Leon Vict Clement
Original AssigneeDebrie Andre Leon Vict Clement
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method for treating films arranged in strips
US 1907252 A
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Description  (OCR text may contain errors)

May 1933. A. v. c. DEBRIE ,907,252

METHOD FOR TREATING FILMS ARRANGED IN STR IPS Filed Dec. 20, 1929 Patented May 2, 1933 UNITED STATES PATENT OFFICE ANDRE E'oN vro'ron CLEMENT DEBBIE, or rams, FRANCE METHOD FOR TREATING FILMS ARRANGED IN STRIPS Application filed December 20,-1929, Serial No. 415,580, and in France January 31, 1929.

cinematographic films and the like ar- D followed each by a washing vat W of the ranged in strips are generally developed, same size, a filmF (Fig. 1) which is properly fixed and dried in continuously working madeveloped after passing through a single chines wherein the difierent films secured todeveloper vat will pass out of said vat into 5 gether to form a continuous strip pass first the adjacent corresponding washing vat and through one or more vats containing the dethence into the following five washing vats. veloper and then in succession through the On the contrary a film F (Fig. 2) which is Washing vats, the fixing vats and lastly into properly developed only after passing the drying kiln. through all six developer vats will only pass Now the difierent films passing in succesthrough the last water vat. All the films will sion through the machine may require to be pass thus through seven vats which will be immersed during varying times of reaction according to requirements, one developer vat for a proper development and this causes and six water vats or two developer vats and some ditficulty in the working of the machine. five water vats and so on up to six developer My invention has for its object a method vats and one water vat. whereby each film or portion of film is al- Each film passing out of a developer vat lowed to pass through .the developing bath may be brought either into the adjacent waterduring the exact time required without it vat or into the next developer vat either by being necessary to change the speed of the hand or through semi-automatic or entirely strip containing the film nor to slow down automatic devices. TAny suitable inspecting or to accelerate the movement of the films means allows the state of development of the ahead of the film considered and still underfilm to be ascertained as it passes out of each going the developing process. It is neither developer bath. necessary to use intermediary strips between The above arrangement though particu- 2 the successive films nor to go into intricate larly intended for use in film development handling in the case of my invention. processes may also be used with advantage According to my said invention the defor other operations where the different films veloper is distributed between a certain numrequire treatments of different duration,-such her of short vats each of which is immedias dyeing and even for operations on bands ately followed by a vat full of water, bromideof any description. containing water or any suitable acidulated What I claim is: product adapted to wash the developed film A method for treating a plurality of films and to prevent any further action of the dearranged in a strip-consisting in passing said veloper. I strip continuously over a series of vats con- Each film passes first in as many developer taining alternately a developer and a washvats as may be required for its proper develing liquid, and extending loops of the strip, opment. When this is accomplished it passes invariable length, into that number of dethrough the washing vats ahead of the last veloper vats corresponding to the desired developer vat used. Obviously the total numdevelopment, and thereafter into such num- M berof vats whether developer vats or washber of washing vats that the totalnumber of ing vats, through which a film passes is'the extensions of the film into the two kinds 0 same for all the films. Thus each film is devats is a constant. v veloped to the required extent and the ma- In testimony whereof I have signed my chine works exactly as if the several films rename to this specification.

mained the same time in the dGVQIOpGI'. ANDRE LQONVICTOR CLEMENT magma Accompanying drawing gives a diagrammatic illustration of the invention, Figs. 1

and 2 showing the position of difierent films L of the same strip in the developer and washmo ing vats. The machine shown comprises vats

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2527959 *Apr 23, 1948Oct 31, 1950Quinn Joseph MApparatus for automatically and continuously treating photographic film
US2570627 *Oct 29, 1947Oct 9, 1951Rca CorpFilm processing device
US2621573 *Jan 14, 1949Dec 16, 1952Cyrus KatzenContinuous belt-type fluid treatment apparatus
US2629304 *Jun 24, 1948Feb 24, 1953Eastman Kodak CoApparatus for processing film
US2651245 *Oct 6, 1949Sep 8, 1953Warner BrosMeans for rapidly processing photographic film
US2652759 *Nov 25, 1949Sep 22, 1953Polaroid CorpApparatus and process for treating light-sensitive materials with liquid
US2665619 *Sep 9, 1949Jan 12, 1954Kenyon Instr Company IncApparatus for processing photographic film
US2674167 *Sep 18, 1950Apr 6, 1954Edwards Charles NApparatus for homogeneous spraying film
US2711678 *Jan 22, 1952Jun 28, 1955Barber Anthony AApparatus for developing a photographically printed paper strip
US2945760 *Jan 8, 1957Jul 19, 1960Gulton Ind IncPhotographic processing method
US2991703 *Aug 29, 1958Jul 11, 1961Polaroid CorpPhotographic apparatus
US3236649 *Aug 29, 1960Feb 22, 1966Buechner Werner WPhotographic process and apparatus
US3485628 *Jul 13, 1965Dec 23, 1969Polaroid CorpMulticolor diffusion transfer process employing a minimum amount of a processing composition
US3620725 *Jan 23, 1969Nov 16, 1971Technology IncRapid photographic development system
US4343892 *May 12, 1980Aug 10, 1982Fuji Photo Film Co., Ltd.Method and apparatus for silver recovery during photographic processing
US4367941 *Aug 5, 1981Jan 11, 1983Fuji Photo Film Co., Ltd.Apparatus for silver recovery during photographic processing
Classifications
U.S. Classification430/421, 430/401, 430/934
International ClassificationG03D3/13
Cooperative ClassificationY10S430/135, G03D3/135
European ClassificationG03D3/13G