Odd. 1946. 2, H» D. RUSSELL ETAL ,153 'rnocnssme APPARATUS Filed Nov. 30, 1943 2 Shasta-Sheet; INVENTORS eZZ ~ M ~ I m ‘'11 I , ' Patented Oct. 8, 1946 2,409,153 UNITED STATES PATENT OFFICE 2,409,153 PROCESSING APPARATUS Harold D. Russell and John I. Crabtree, Roch ester, N. Y., assignors to Eastman Kodak Com pany, Rochester, N. Y., a corporation of New Jersey Application November 30,1943, Serial No. 512,348 8 Claims. 1 This invention relates to photography and par ticularly for a machine for processing photo graphic light-sensitive material such as ?lm or paper. One object of our invention is to provide a portable processing machine in which material maybe processed without the use of a darkroom. Another object of our invention is to provide a machine in which strip material may be processed by suitable ?uids and a machine in which these (CI. 95-94) 2 Coming now to the drawings wherein like ref erence characters denote like parts throughout: Fig. 1 is a side elevation of a processing appa ratus constructed in accordance with and em bodying a preferred form of our invention; Fig. 2 is a top plan view of the apparatus shown in Fig‘ 1 with the cover removed; Fig. 3 is a longitudinal section through the tank shown in the preceding ?gures, certain parts be ?uids can be retained in such a manner that the 10 ing shown in elevation; Fig. 4 is an enlarged detail section taken machine is capable of being inverted without spill through one of the ?uid treatment compartments; Fig. 5 is a section taken on line 5——5 of Fig. 1; and Fig. 6 is a fragmentary detail showing a modi the ?uid treating compartments. Still another 15 ?ed form of our invention. object of our invention is to provide a machine Our invention comprises broadly a processing which is primarily intended for use in an airplane apparatus in which strip material is led through for processing ?lm taken therein and paper. the apparatus about a number of guide rollers Other objects will appear from the following specification, the novel features being particu 20 and to a take-up roll, the guide rollers directing the film through processing compartments de larly pointed out in the claims at the end thereof. signed to carry the required processing solutions At the present time most of the more compact into contact with the sensitized surface of the type of processing machines for ?lm and paper strip material. By properly selecting the solu must be used with quantities of processing solu tion and it is usually necessary to provide a mois 25 tions used the operation of developing and ?xing or stabilizing can be carried out continuously and ture-tight cover for a tank holding the solution a roll of film can be passed through the machine into which the material to be processed is placed. and wound up on the take-up roll in a very short Sometimes such tanks are provided with light period of time. tight drains or closures through which different As indicated in Fig. 1, the machine may consist solutions may be introduced, but in the machines. 30 of an elongated box-like member I which includes known to applicants there is almost always pres side walls 2 and a cover 3. As indicated in Fig. 3, ent a quantity of solution which. must be prepared the elongated box I may also include a bottom and disposed of. This is very undesirable for wall 4 and upwardly extending walls 5. 6, 1 and 3. many purposes and particularly where sensitized 35 The walls 5 and 6, together with side walls 2, material is to be processed in an airplane. form a supply chamber 9 for a roll of material In most known types of processing machines the H), such as ?lm or paper. to be processed. The developing and ?xing operations have been sep chamber 9, if desired, may be rendered light tight arately carried out either in di?erent tanks or by by a cover H which may be drawn out for the ?owing the di?‘erent solutions into the same tank and most processingr machines known to appli 40 insertion or removal of a roll of sensitized ma terial which may be mounted on centering pins cants are far too bulky to take up conveniently in an airplane. [2. only one of which is shown in Fig. 3. From the supply chamber 9 the strip material Our improved developing machine, while par S may be led through an opening M which may be ticularly adapted for use in airplanes, can of course be conveniently used anywhere. It is de 45 rendered light tight of felt or plush l5, and into the developing compartment I3. A pair of guide signed, not only so that the complete machine rollers l6 and I‘! are mounted in this chamber to will be light and compact, but so that a roll of hold the strip material S ?at against the bot ?lm or paper can be continuously drawn through tom 4 of the developing compartment and the the machine and wound up in a developed, ?xed or stabilized condition as an operator turns a 50 rollers l6 and I‘! are preferably formed of real or arti?cial sponge rubber. Viscose‘sponge mate crank on the outside of the machine. The com rial has been found very satisfactory. plete operation can be carried out very rapidly From the development compartment IS the ?lm with our machine and with certain preferred may be led into a ?xing compartment l8 over a solutions the ?lm may be moved 4 to 8 feet per 55 guide roller l9 which may be a rigid or wooden minute. ing the solutions. Another object of our inven~ tion is to provide a processing machine in which it is not necessary to provide a fluid-tight cover for 2,409,153 3 roller if desired. The strip material S then passes under a pair of guide rolls 23 and 2I, these rolls being preferably the as the rolls I6 and IT in that they are both made of soft. moisture ab sorbing material such as real or arti?cial sponges. From the ?xing compartment I3 the film is led over a rigid roller 22 beneath a rubber squeegee 23 and is wound on a take-up shaft 2i‘- in a com partment 25 which may. if desired, be openat the end as shown in Fig. 3. In each of the compartments I3.and .18 there are similar sponge applicators 25 which include a large block of sponge material 21. ‘This sponge block carries a ?ber plate 28 and a'topplate 29 4 counterclockwise direction to assist movement of the ?lm and to prevent small quantities of the treatment solutions from being carried up and out of their respective compartments. It will be noticed from Fig. 4 that the sponge rollers have their shafts positioned so that they are somewhat, compressed against the bottom wall 4 of the processing apparatus. The reason for this is that this compression squeezes out the treat 10‘ ment fluid from the rollers and tends to wipe the il?lm‘ without permitting the treatment solution to move out of the chamber. In fact, any small 'jquantity oftreatment fluid between the two sets . of rollers I6 and IT or 20 to H is con?ned to the space between .the rollers because these rollers are not only compressed against the bottom 4 of the apparatus but each roller. as indicated in ,lifig- 5,.is also mounted to form a substantially moisture-tight connection with the side walls 2 of the machine in the following manner. The side walls 2 arerecessed and are provided with ‘cups 69 which may be of stainless steel or other metal not affected by the processing solutions. Since the rollers tightly ?t these cups and press toward the bottom 4 of the compartment, little if to which the sponge 21 is attached and a cam or eccentric is provided for moving each sponge. In the developing chamber I3 the'camw'ill‘is'v carried by a shaft 3|, this shaft supporting a sprocket 32 which may be driven by a sprocket chain 33. In the ?xing compartment the cam or eccentric . 34 is. carried by a shaft 35 which supports a sprocket 35 also driven by the chain 33. This chain passes over a sprocket. 31 carried‘by a shaft 38 which turns the guide roller 23 in a clockwise direction. any moisture can leak out of the processing com Thus the roller, Ziland the eccentrics or cams partment‘ from between a pair of guide rollers 30 and 34v will all be turned together. 'E‘ach ap such as I6 and IT. plicating sponge 21 is moved in the same man The sprocket 46 ‘is carried by the shaft 45 ner as follows. Each time the eccentric 30 . turns, the sponge block '25.is moved against the "30 which; in' turn, is keyed to the shaft 33 so that the sprocket 3': carried thereby is turned with direction of movement of the ?lm and the‘ sponge .block-may be raised and lowered duringthis the sprocket‘ 46. "Thus motion may be trans mitted to the chain 33 from the chain 4'! so that movement as indicated in Fig. 4 through the con tact of the cam 33 with the ?ber block 28 and the ?ange 29. The sponge block, since it rests on the strip material s, is normally carried along by the the operator can move the ?lm through the ma chine by turning the single handle 43. ' 'If desired the cover 3 may‘ be hingedly at stripmaterial so that the ?ber block '28 will tached at 62 to one of the side walls 2 and we always remain in contact with the surface of the prefer to provide latches 63 operable by handles cam. As the ?lm is moved through each of the fluid treatment chambers thesponge is stroked backwardly and forwardly over the film so as to apply an even layer of solution to the sensitized surface of the strip material. Since it is neces sary to move the strip material through the ma chine the drive shown in Fig. 1 is employed, As indicated by this ?gure, there is a handle 43 on the end of a crank 4| which may be turned by an operator to turn the shaft 42. A gear 43 on 64 to engage lugs 65 carried by the cover to hold ‘the cover in place. With our apparatus, as above described, the operation of developing a‘?lm or a strip of paper ' is extremely simple. A roll or spool of the strip material may be mounted on centering pins I2 45 in compartment 9 and the cover I I may be slid on to make a light-tight connection after the end of the ?lm has been thrust through the opening I4 ‘and threaded about the various rollers, being this shaft turns the gear 44 on shaft 45 so as ?nally attached to the take-up shaft‘ 24. It is customary to provide either a separate leader to turn the sprocket 46' in a clockwisedirection. ‘ This causes a chain 41 to move as indicated by strip or a'leader for aerial‘?lm which is merely the arrows in Fig. 1 so as to turn sprocket 48 a continuation of the sensitized strip and which in a counterclockwise direction. Sprocket 48 is may be dyed or otherwise rendered light tight. carried by a shaft 49 which turns the sponge Therefore, that portion of ?lm or paper which threaded through the machine need not be pro roller 2| in a counterclockwise direction. The shaft 49 likewise carries a gear 5!] for turning tected from light'during threading. The cover 3 the large gear 5! so that its shaft 52 may turn .is then latched in place and the operator turns the take-up shaft 24 on which the strip material the handle 49 at the required speed. A pawl ‘I0 is wound after processing. The chain 41 passes pivoted to the side wall at ‘H prevents movement beneath an idler 53 and over a second idler 54 of ‘the handle in the wrong direction. The han and also turns a sprocket 55 carried by a shaft dle is turned and the ?lm moves slowly'lthrough 56. Shaft 55 turns the sponge roller IS in a the apparatus which has been previously condi clockwise direction. tioned for processing by dipping the sponge of the Chain 41 also passes over a sprocket 51 on shaft 58, shaft 58 turning the sponge guide roller I‘! in a counterclockwise direction. It will be noticed from the above description that the sponge rollers I5 and 20 positioned as the ?lm enters the processing compartments turn in a direction opposite to that of the movement of the ?lm. The reason for this is that these rollers may carry» a very small quantity of the treatment ?uids into smooth and even contact with the sensitized surface of the incoming ?lm. The sponge rollers I’! and 2I both turn in a 75 "developing compartment ‘ I3 in the desired devel oping solution and by dipping the sponge of the ?xing compartment I8 in the desired ?xing or stabilizing solution. While both these sponges ‘are substantially'?lled with solution, the solu ‘tion does not flow in‘any’quantity from the sponges as they are oscillated back and forth against the moving strip material so that each sponge applies an even layer of its solution to the sensitized surface of the strip material in a suf ?cient quantity to process the material but not in a sufficient quantity to permit a pool‘of so 2,409,158 6 lution which, for obvious reasons, is very unde toward the bottom wall, power means for turn sirable for use in an airplane. The, processed ?lm may be completely wound up on the take-up shaft 24 and may then either be used in a, damp condition at once or it may be passed through a suitable drier and stored for future use. It will be noticed that any small quantities of solution which may tend to leave the develop ment compartment l3 will be sopped up by the ing the rollers in opposite directions whereby that portion of the rollers pressing toward the bottom wall may turn in a direction away from the'cen ter of the compartment thereby tending to re tain ?uid therein, a sponge, a carrier for the spongemovably mounted in the compartment, power means for moving the sponge and its car rier whereby said sponge may apply a‘quantity sponge roller I‘! and the same is true in the fix_ 10 of fluid to a film lying on the bottom of said ing compartment 18 where the strip material must pass partially around the compressed sponge» compartment and pressed flat thereagainst by said rollers, said rollers and sponge tending to roller 2!. However, any minute amounts of retain ?uid between the rollers. solution may be ?nally squeegeed oil the surface 3. A fluid treating compartment for a machine of the strip material by means of the rubber 15 for processing strip material comprising bottom, squeegee 23 which normally presses toward the side and end walls, one of said end walls constitut solid guide roller 22. ing a ?rst end wall and the other of the end walls While we have described a preferred embodi constituting a second end wall, a pair of resilient merit of our invention it is obvious that changes rollers, one mounted adjacent the first end wall will readily occur to one skilled in the art. In 20 and the other mounted adjacent the second end Fig. 6 we have shown a modified means of oscil wall, both of said rollers pressing toward the bot lating the sponge block 25, and in this instance tom wall, a sponge movably mounted between the sponge block may be positively moved in both the rollers, power-operated means for moving the directions. Here the sponge block I28 may be rollers and sponge for causing the sponge to apply provided with a sponge I21, A lug I28 may be 25 a quantity of solution to a ?lm stretched between pivotally attached at 129 to a link I30 which in said rollers and against the bottom of the com turn may be pivotally attached to an eccentric partment to con?ne solution to the compartment pin I 3| carried by a disk I32 which may be at and apply the solution evenly to the ?lm. tached to a shaft I33. This shaft, like shaft M 4. In a machine for processing photographic for instance, may be driven by the sprocket 32. 30 strip material the combination with a housing, of Fig. 3. With this method of oscillating the of a supply compartment, 8. development com sponge block, it may be made to oscillate at any partment, a ?xing compartment and a take-up desired speed with respect to the speed of movecompartment arranged therein in end to end po ment of the film since it does not rely on the ?lm sition, a plurality of guide rollers for directing the strip material through the compartments in for moving it in one direction. A sponge 13 may be provided in chamber 25 to catch possible drops cluding pairs of resilient guide rollers in each end of the development and ?xing compartments of treatment solution. Our processing apparatus, as can be seen from and mounted adjacent the bottom of said corn the above description, may be extremely compact partments, a sponge block adapted to carry treat and su?iciently light weight to be readily port 40 ment ?uids mounted in each of the developing able so that an operator can rapidly process ?lm and ?xing compartments, a drive means for mov in an airplane. It is of course obvious that such ing the pairs of guide rolls in the bottoms of the developing and ?xing compartment, and means processing apparatus may be equally useful for also operable by the drive means for moving said processing ?lms and papers wherever it is desir able to have a compact, light and portable ma 45 sponge blocks when said guide rollers are moved to stroke a treatment fluid carried by said sponges chine suitable for use for daylight work. evenly upon a strip of photographic material ly We claim: ing beneath the pairs of guide rollers and sponge 1. A ?uid treating compartment for a machine blocks. for processing strip material comprising bottom, 50 5. A combination according to claim 4, but side and end walls, one of said end walls con wherein the rollers of each pair of rollers in the stituting a ?rst end wall and the other of the end developing and ?xing compartments are rotated walls constituting a second end wall, a pair of in opposite directions away from the sponge block resilient rollers, one mounted adjacent the first lying between said rollers. end wall and the other mounted adjacent the 6. A combination according to claim 4, but second end wall, both of said rollers pressing to 55 ward the bottom wall, power means for turning wherein the resilient rollers of each pair of rollers the roller adjacent the ?rst end wall in a counter~ in the developing and ?xing chamber have sub stantially ?uid tight engagement with the walls clockwise direction and for turning the roller adjacent the second end wall in a clockwise direc of the developing and ?xing chambers to retain tion, a sponge means movably mounted between .60 ?uid treatment solutions between said rollers the rollers and driven by said power means for therein. turning the rollers for carrying aquantity of fluid 7. A combination according to claim 4, but into contact with a strip of ?lm stretched between wherein the resilient incoming roller of each pair the rollers, said ?uid being con?ned to the ?lm of rollers in the developing and ?xing chambers between the rollers by the pressure of the re 65 is turned in a direction opposite to that in which silient rollers against said ?lm and towards the the strip material is moved to evenly spread bottom of the treating compartment. treatment ?uid leaking from the said sponge 2. A fluid treating compartment for a machine block thereon before said strip material is en for processing strip material comprising bot~ gaged by the sponge block. tom, side and end walls, one of said end walls 70 8. A fluid treating compartment for a machine constituting a ?rst end wall and the other of for processing strip material passed through the the end walls constituting a second end wall, a compartment in one direction, said compartment pair of resilient rollers, one mounted adjacent the comprising bottom, side and a ?rst and second ?rst end wall and the other mounted adjacent end wall, pairs of rollers spaced at the ends of the second end wall, both of said rollers pressing 75 the bottom walls, one adjacent the ?rst end wall 12,409,153 8 H and the other adjacent the second end wall; strip “?ned betweenethe rollers, the rollers both being ‘resilient andimountedlin the. compartment with their ends compressed againstthe side Walls and compressed against the. bottom wall or strip ma , roller adjacentthe secondend Wall and over the 5 terial lying thereon to substantially prevent leak age of the fluid from the?uid treating compart second end wall, a movably mounted ?uid apply ing device mounted-‘in the compartment and be ment. material entering the compartment over‘the ?rst end wall and under the roller adjacent thereto and passing from the compartment under the . tween the rollers, power means for operating the 1 rollers and the movably mounted ?uid applying zdevice whereby ‘the applied fluid'may' be con- 10 HAROLD D. RUSSELL. JOHN I. CRABTREE.