US1827392A - Photographic apparatus - Google Patents

Description

Oct. 13, 1931. J. 5. GREENE ET AL A I PHOTOGRAPHIC APPARATUS 6 Sheets-Sheet 1 Filed Nov. 7, 1928 INVENTORS L g 2015. Greene 9 Bflrflzu' Ce; 5

Oct. 13, 1931. ,J. s. GREENE ET AL I PHOTOGRAPHIC APPARATUS e Sheets-Sheet 2 Filed No v. 7, 1-928 Oct. 13, 193-1. .1. s. GREENE ET AL PHOTOGRAPHIC APPARATUS 6 Sheets-Sheet 3 Filed Nov. 7, 1928 lNVENTOR-S c757uz $.6'reene B Zicu' ATTORNEY I Oct. 13, 1931. J. s. GREENE ET AL 1, 7,

PHOTOGRAPHIC APPARATUS Filed No v. '7, 1928 e Sheets-Sheet 4 Es L M INVENTORS c7570; 5. (frcene Blflri/zu 5 Oct. 13, 1931. J. s. GREENE ET AL PHOTOGRAPHIC' APPARATUS 6 Sheets-Sheet 5 Filed NOV. T 7, 1928 INVEN 0R Jiuz fireene Zia ATTORNEY J. 5. GREENEET AL PHOTOGRAPHIC APPARATUS Filed Nov. '7, 1928 6 Sheets-Sheet 6 Zia ATTORNE Patented Oct. 13, 1931 4.. La X59) 4 (GOREOBATIUN, @F PROVIDENCE, RHODE ISLAND, A GORPQRATIQX? (ill? rstnnn 'EE-ZOTOGRAPHIC APPARATUS Application filed November 7, 1928. Serial No. 317,771.

@ur present invention relates to photog raphy and more particularly to the treatment of exposed photographic prints in a liquid bath whether developing, washing, or fixing. The invention is particularly applicable to so-called automatic or semi-automatic cameras used in commercial photography to make reproductions of various small objects,

particularly, documents and the like, which are photographed and developed in one apparatus and delivered in a finished or semi-- finished condition.

I The invention has for its object to provide an improved simple,

convenient, economical and efiicient machine of this character especially where prints are to be made upon paper or similar flexible film sheets. The improvements are directed in part to the means for mechanically car rying the exposed print to .the point of liquid treatment and depositing it therein, and especially to means whereby the print issubmerged in and uniformally and effectively given over to treatment by the liquid.

To these and other ends the invention resides in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of this specification.

In the drawings: v

Fig. 1 is a side elevation with the copy board partly broken away of a photographic exposing and developing apparatus constructed in accordance with and illustrating one embodiment of our invention;

Fig. 2 is a top plan View, enlarged, of the hypo or fixing tray of the developing apparatus taken in horizontal section through the developing apparatus substantially on the line 2-2 of Fig. 1; i

Fig. 3 is a longitudinal vertical section through the developing apparatus with a erably enlarged and showing the side of the machine opposite to that shown in. Fig. 1 illustrating the driving mechanism and connections;

Fig. 5 is an enlarged transverse fragmentary section taken on the line 55 of Fig. 4;

Fig. 6 is an enlarged fragment of the print conveyer showing one of the pin bars or iinpaling devices;

Fig. 7 is another enlarged fragmentary view similar to Fig. 4, but showing a modified form of gearing between the driving element and the operated parts, and also a modifiedform of liquid holdingreceptacle;

Fig. 8 is a fragmentary horizontal section taken substantially on the line 8-8 of Fig. 7

Fig. 9 is a fragmentary longitudinal sec tion through the liquid receptacle shown in Fig. 7;

Fig. 10 is a fragmentary longitudinal central section, enlarged, through the liquid receptacle, showing the print stripper at an initial point in its movement, and

Fig. 11 is a similar view showing the print stripper at the completion of its movement.

Similar reference numerals throughout the several views indicate the same parts.

We will first give a general description of the aims and operation of our invention as shown in the accompanying illustrative embodiment:

The camera or exposing apparatus is of a well ,known or usual type. A section of a continuous roll of sensitized paper is fed into into the focal plane; exposed; fed out and severedinto a single sheet or print. An endless carrier provided with pin bars impales the advanced edge of the sheet and thereby carries it over a liquid treating receptacle.

After dragging the prints over the liquid in the receptacle, it stops and the attached end of the print is immediately engaged by a stripping device which doffs it from the pin bar and causes it to fall flat into the liquid.

The liquid bath receptacle has the form of a relatively shallow tray and constantly reciprocates back and forth'so that a succession of waves are produced that run from that have preceded it. Driving means is provided for intermittently driving the carrier,

and for continuously operating the stripper and the liquid container. In the present instance this container serves as the final fixing bath after the print hasbeen carried succes sively through a'developing bath and a washing bath, but the nature of the bath is immaterial to this invention except in certain particulars. I

Referring first more particularly to Figs;

1 and 3, 1 indicates generally a camera stand rovided with a vertically adjustable copy board 2 at the front. Above this copy board is the usual lens and prism 3 on a fixed front 4 connected by bellows 5 with the camera body 6, which is movable on the frame as usual for-focusing purposes. The camera is fixed to a depending liquid treating or developing apparatus 7 which moves with it. The magazine or paper roll is indicated at 8, the focal plane into which it is drawn in sections is indicated at 9, and the feed rolls at 10. Below the latter is the knife or severing device 11 which severs the exposed print, and allows it to drop into a vertical chute 12. The lower edge of the print projects'from the open lower end 13 of this chute in a manner not necessary to describe, but such as to permit it to be impaled upon and carried by an endless chain carrier 14. i

This carrier comprises two chains, one at each side of the machine, each of which runs over a series of sprockets and rolls 15 and 16-'17. The latter two are given individual reference numerals for purposes of later description in detail. The chains are connected at intervals by pin bars 18 having pins 19 thereon (see Fig. 6) It is these pin bars that directly engage and carry the prints. The driving of the carrier as later described is such that aftera pin bar has picked u a print P, it carries it into a developing tank 20 and comes to rest at the station A while the print is being treated therein. It then moves into a washing tank 21 and comes to rest at the station B while the print it carries is being treat-' ed therein, these two tanks being in the lower portion of the apparatus. The pin bar thence travels upwardly and forwardly over a horizontal preferably shallow hypo or fixing tray or receptacle 22 through which it drags or trails the print comin to a momentary rest above the forward end of the tray at a final station C. The particular machine disclosed is a three pin-bar machine and it will be understood that the operation is continuous,

and while one bar and print is at one station with its print, the others will be at other stations with their prints.

It will be seen from following the path of the conveyer in Fig. 3 that as the print journeys forwardly over the final fixing tray 22, its emulsion or picture side is up, and its front.

edge lies on top of the pin bar and is partially turned downwardly over the front of the latter on the impaling pins, which of course project forwardly, and are then at the front of the bar. At station C the bar loops upwardly and rearwardly around sprocket 17. It thus momentarily reverses in direction and the pins 19 are then projecting rearwardly with the print trailing from the under side except where its margin projects its free edge upon and above the pins. The action is such that at this point C the pin bar is wiped over in'a rearward direction by a swinging pendant stripper arm 23 vibrating forwardly and rearwardly on a rock shaft 24. The stripper is provided on its lower endwith a plurality of rubber or similarly yielding fingers 25 (Fig. 5) spaced apart for free flexibility and to escape the pins 19 butto engage the edge of the print and quickly detach it so that it falls fiat into'thepan 22. The pin bar thence again reverses itself over-companion sprocket 16 and resumes its travel forwardly and downwardly to the pick up point 13.

The stripper23 vibrates back and forth continuously through means hereinafter described in detail, so that it will always catch the pin bar during its periodic rest at station C. The front edge of the print when momentarily reversed with the pin bar at this point as described, has a tendency, naturally, to double over upon itself at times instead of falling flat into the pan. To counteract this tendency we provide at a point between the reversing sprockets 16 and 17, a guide bar 26 that resists the curling over of the print extending as it does above and across it and the pan 22. We additionally provide a similar transverse sto bar 27, similar to the bar 26 andarrangeda oveitinthe path of the stripper fingers 25. This last mentioned bar per limits the rearward kick which the latter gives it, and halts it (the print) as soon as it.

has left the pins but without allowing further progress in a folding or lapping direction.

As before mentioned the tray or receptacle 22 that receives the print has a constant reciprocatory movement forwardly and rearwardly in order to produce waves in the liquid that will flow over, submerge, and thoroughly treat it. For this purpose it rests upon a pair of free rolls 28 operating in cages 29 on an upper platform 30 in the developing casing 7, or the rolls may have journals as shown at 31 in Fig. 9 turning in fixed bearings 32. In either case a gentle endwise reciprocating movement'of the tray is effected with the result that continuous waves of the form indicated in dotted lines in Figs. 10 and 11 at 33 are produced which flow over and under the print indicated at P in these figures. In this connection it is to be again noted that Fig. 10 illustrates the beginning of the operative stroke of the stripper 23 and has been dofied.

eavens It should be noted in Fig. 3 that the drip pan is closed on four sides so that any hypo that may splash out of the tray 493 will not fall into the developing tanh or the approaches thereto, but that a hole 36 is provided toward the rear of the drip pan through, which the drain coch 22projects which furnishes an outlet for liquid that ac cumulates in the pan, and permits it to drain nto the water tank 21 where it may be drained off into the sewer if desired.

ln print treating machines of this character. it is essential that none of the fixing solution is carried into the developing solution, and the peculiar arrangement of parts are designed so that the'print is carried positively through and totally submerged in the developing solution by the carrier, but the carrier or any part thereof that reenters the developing tank does not come in contact with the fixing solution. Thus the front edge of the drip pan 30a the bottom of which constitutes the platform 30 is sealed by a 2 bar 30?) on an upwardly and rearwardly inclined baffle plate 300 (Fig. 3). 1

The tray is shown to have substantially square or vertical end walls 34 in Figs. 7, 8, and 9, and curved end walls 35 in the'other figures. We prefer the first mentioned contruction. In either case, we supply the top of the end walls with overhanging ledges 86 which prevent the liquid from slopping over, and also help to produce a more effective wave. The front ledge is preferably provided with spaced fins 37 which reduce the tendency of the front edge of the wet print to adhere thereto in the event that it falls thereon ashereinafter more fully explained.

The mechanism for operating the several agencies or mechanisms described preferably embodies a unitary drive with. transmission mechanism that actuates the various parts in a synchronized or timed relationshlp. To

this end, referring particularly to Figs. 4, 7, 10 and 11 we provide a motor 38 mounted on a bracket 39 on a gear case 40 secured to the left side of the machine. Arranged in alinement vertically in the gear case is a driven sleeve 41 and a drive shaft 40 connected by Worm gear 42 to the motor shaft 48. The driven sleeve shaft 41 through worm gearing indicated generally at 4 1 is arranged to turn a power shaft 45 carrying a pair of the sprockets 15 and whichgive motion to the chain conveyor. When a hand lever 46 on the right side of the machine (Fig. 1) is de-, pressed, it causes a dog 47 (Fig.4) on the same shaft 48 and on the opposite side of the machine to depress a plunger 49 which ear-v ries a shipper 50 that actuates a clutch element 51 on the drive shaft 40 into engagement with the complementary clutch element 52 on the driven sleeve shaft 41, and thus the carrier 14 is set in motion through shaft 45. This driving of the carrier is for a short pe- 1. a tun ng this invention, but is disclosed in Landroclr Patent No. 1,780,489, granted November 4, 1939.

Referring to Figs. 4, 10, and 11, the drive shaft 40 turns continuously with the motor shaft and through a worm 53 on its upper end in an annexed gear box 5 1 drives a spiral gear 55 provided with a crank pin56 and a pitman 57. The other end of the pitman is pivoted at 58 to a bell crank arm 59, the other arm 60 of which is connected by a link 61 with a crank 62 on the rock shaft 24 of the stripper 23. It is in this way that the stripper receives its continuous swinging.

wiping motion. At the same time arms 64 at each end of the shaft 65 that carries the bell crank 59-60 are similarly vibratin They are connected by links 66 with cran arms 67 on one of the tray supporting rolls 528 so that the movements of the pan in its reciprocatory action are synchronized with those of the stripper as before stated. It is here important to say that in this synchronized movement it has been found best to cause tbe'stripper 23 to move rearwardly or operatively indisengaging the print while the tray or fluid receptacle is also moving rearwardly' or in the same direction, the reason being that the frictional contact of the liquid with the print assists the stripper to a slight degree in pulling the print off the impaling pins, and is traveling away from the forward end of the print instead of toward and under it, whereby the folding over of the print thatis to be avoided is combated. If the tray moved forwardly while the stripper was stripping in a rearward direction the tendency would be to throw the body of the print under the partially curled end of the print at the moment of its disengagement.

In furtherance of this idea of aiding the stripper 23 in every way to not only disengage the printfrom the impaling pins 19 but to cause it to fall quickly and in a flat condition within the liquid in the receptacle 22 we prefer to provide the latter at the top of its rear wall with an overhanging ledge 68 that performs the same function at that end as the ledge 36 at the forward end in producing a suitable agitating wave without spilling the liquid. This ledge 68 is,of substantial width and has asmooth flat continuous surface. As the tail end of the wet print is trailed over it, it has a tendency to adhere thereto and offers such resistance or retarding action particularly. in connection with the movements of the receptacle itself as will cause it to prevent the print from overriding, hold it with a degree sists of a plurality of spaced fins 37, the thin edges of which present themselves as the contacting surface.

Inasmuch as the receptacle '22 preferably lies loosely on the rolls 28 so that it maybe readily removed and replaced in the accustomed manner of a stationary tray, wepreter to provide butters or stops on the platform 30, so that it, through the inertia of its reciprocatory movement, it creeps or slides upon the rolls, it will-be limited by the butter stops and straightened out again.

In Figs. 7 and 8, I have shown a modified and somewhat simpler manner of connecting up the stripper and tray oscillating rolls with the transmission mechanism of the motor; A crank arm 71 is'secured to the gear 55 and is connected by a link 7 2 with a bell crank arm 73 turning on a transverse shaft 74 extending beneath the receptacle 22, all incased in an extension housing 75. The other arm of the bell crank 76 is on the inside of the casing 7 between the side wall thereof and the receptacle and is pivoted at 77 to a crooked link 78 which is directly'pivoted at 79 to an arm 80 on the rock shaft 24 of the wiper. said arm corresponding to the arm 61 shown in the other view and the action being substantially the same. In these views also a differ- ,ent form of actuating dog 81 is used to depress the plunger or push rod 49, but its action is the same and it turns with the operating shaft 48 as before.

We claim as our invention: V

1. In a photographic liquid treating apparatus for exposed prints, the combination with a driving element, of a liquid holding receptacle, mechanism for depositing a photographic print in said receptacle, and means for transmitting a reciprocatory movement to the receptacle from the driving element to.

produce a turbulence in the liquid sutiicient toimmerse a photographic print deposited therein.

2. In a photographic liquid treating apparatus for exposed prints, the combination with a driving element, of a relatively shal low liquid holding tray having overhanging ledges at its ends, mechanism for depositing a photographic print in said tray,

and means for transmitting a reciprocatory movement to the tray from the drivin element to produce a series of longitudinally therein. 30

4..In a photographic liquid treating apparatus for exposed prints, the combination with a driving element and a bed support having rolls thereon, one ofwhich is provided with a crank, of a li uid holding container resting upon the r0 ls and transmission gear between the driving element and the latter, including a connection to the crank of one of the rolls, arranged to rotate the rolls in first one direction and thenthe other and thereby reciprocate the container to produce a turbulence in the liquid sufiicient to immerse ap hotographic print 'deposited therein.

5. In aphotographic liquid treating apparatus for exposed prints, the combination with a driving element and a bed support having rolls thereon, of a liquid holding container resting upon the rolls and having overhanging ledges at its ends and transmission gear between the driving element and the latter arranged to rotate the rolls in first one direction and then the other and thereby reciprocate the container to produce a turbulence in the liquid sufiicient to immersea photographic print deposited therein.

(3. In a photographic liquid treating apparatus for exposed prints the combination with a conveyor adapted to pick up an exposed print and to deposit it at a predetermined point, and a driving element for the conveyor, of a liquid holding receptacle located at the point of deposit of the print and adapted to receive the same, and means connected to the driving element for communicatingmotion to the receptacle and creating a turbulence in the liquid therein sufiicient to submerge the photographic print deposited therein.

7. In a photographic liquid treating apparatus for exposed prints, the combination .with a conveyor adapted to pick up an exposed print and to deposit it. at a predetermined point, and a driving element for the conveyor, of a liquid holdlng receptacle 10- cated at the point of deposit of the print and adapted to receive the same, and means connected to the driving element for communieating a reciprocatory movement to the receptacle and creating a turbulence in the liquid therein suflicient to submerge, the photographic print.

8. In a photographic liquid treating apparatus for exposed prints, the combination .with a conveyor adapted to pick up an exposed print and to deposit it at a predetermined point, and a drivin element for the conveyor, of\ a'liquid holding receptacle located at the point of deposit of the print and 1 liquid therein suflicient to submerge the photographic print, the tray being relatively shallow and provided with overhanging ledges at its ends.

-9. In a photographic liquid treating apparatus for exposed prints, the combination with a conveyor adapted topick up an exposed print and to deposit it at a predetermined point, and a driving element for the conveyor, of. a liquid holding receptacle located at the point of deposit of the print and adapted ,to receive the same, and a transmission mechanism for the driving element having connections for driving the conveyor intermittently and communicating continuous motion to the receptacle to create a turbulence in the liquid therein suflicient to submerge the photographic print. 10. In a photographic liquid treating apparatus for exposed prints, the combination with a conveyor adapted topick up an exposed print and to deposit .it at a predetermined 'point, and a drivin element for the conveyor, of a liquid hold ng" receptacle located at the point of deposit of the print and adapted tov receive the same, a transmission mechanism for the driving element having connections for driving the conveyor intermittently" and communicating continuous motion to' the receptacle to create a turbulence in the liquid therein sufficient to submerge the photographic print, and a stripping device for transferring -a print from the conveyor to the liquid receptacle while the conveyor is at rest.

11. In a photographic liquid treating apparatus for exposed prints, the combination with a conveyor adapted to pick up 'an ex posed print and to deposit it at a predetermined point, and a driving element for the conveyor, of a liquid holding receptacle located at the point of deposit of the print and adapted to receivethe same, a transmission mechanism for the driving element having connections 'for driving the conveyor intermittently and communicating continuous motion to the receptacle to create a turbulence in the liquid therein suliicienttosubmerge the photographic print, and. a stripping device also continuously operated from the transmissionmechanism for transferring a print from the conveyor to the liquid receptacle while the conveyor is at rest. a

12. In a photographic liquid treating apparatus for exposed prints, the combination with a conveyor adapted to pick up an exposed print and to deposit it at a predetermined point, and a'drivin element for the conveyor, of a liquid holding receptacle located at the point of deposit of the print and adapted to receive the same, a transmission mechanism for the driving element including.

a continuously driven shaft and clutch-elements for intermittentl opcratin the conveyor, and means geare to the sai shaft for communicating continuous motion to-the receptacle and creating a turbulence in the liquid therein'sufiicient to submerge the photographimprint.

13. In a photographic liquid treating apparatus for exposed prints, the combination with a conveyor adaptedto pick up an exposed print and to deposit it. at a predetermined point, and a driving element for the conveyor, of a liquid holding receptacle located at the point of deposit of the print and adapted to receive the same, a transmission mechanism for the driving element including a continuously driven shaft and clutch elements for intermittently operating the conveyor, a stripping device for, transferring a print from the conveyor to the liquid receptacle while the conveyor is at rest, and means geared to the said shaft for communicating continuous motion to the receptacle and creating a turbulence in the liquid therein sufficient to submerge the photographic print and for communicating continuous movemerit to the stripper.

14. In a photographic liquid treating apparatus for exposed prints, the combination with a conveyor adapted to pick up an exposed print and to deposit it at a predetermined point, and a driving element for the conveyor, of a liquid holding receptacle located at the point of deposit of the print and adapted to receive the same, a transmission mechanism for the driving element includmg a continuously driven shaft and. clutch elements for intermittently operating the conveyor, a stripping device for transferring a print frointhe conveyor to the liquid receptacle while the conveyor is at rest, and means geared to the said shaft for communiposed print and to deposit it at a predetereating continuous motion to the receptacle mined point, and a drivin element for the conveyor, of a liquid holding receptacle located at the point of deposit of the print and adapted to receive the same, means connected to the driving element for communicating motion to the receptacle and creating a turbulence in the liquid therein sufficient to subi same, and means connected to the driving element for communicating reciprocatory motion to the receptacle and creating a turbulence in the liquid therein sufiicient to submerge the photographic print.

17 In a photographic liquid treating apparatus for exposed prints, the combination with a reciprocatory liquid holding receptacle, of a conveyor having print engaging devices thereon, a stripper for disengaging a print from the latter synchronized to move operatively with the receptacle and m the same direction, and means for driving the conveyor, receptacle and stripper. I

18. In a photographic liquid treating apparatusfor exposed prints, the combination with a reciprocatory liquid holding receptacle, of a conveyor having print engaging devices thereon, a stripper for disengaging a print from the latter synchronized to move operatively with the receptacle and in the same direction, and means for driving the. conveyor, receptacle and stripper, the latter.

comprlsing a swinging arm depending from a center located above the conveyor and receptacle.

19. In a photographic liquid treating apparatus for exposed prints, the combination with a liquid holding receptacle, of a conveyor having print impaling devices thereon and travelling in a path above the receptacle, a stripper for disengaging a print from the impaling devices anddepositing it in the re ceptacle., said stripper comprising a swinging arm depending from a center located above the conveyor and receptacle and provided with yielding fingers, and means for driving the conveyor and strip er.

20. In a photographic liqui treating apparatus for exposed prints, the combination with a liquid holding receptacle and a conveyor having print impaling devices thereon and travelling in a path above thereceptacle to carry a print thereto, of supporting means for the conveyor at the far end of the receptacle arranged so that the travel of the impaling devices is reversedflin passing said supporting means, a stripper comprising a pendant arm swinging on a center above the conveyor and receptacle to operatively engage the impaled print while said impaling devices are reversed, and means for driving tple conveyor and stripper in timed relations 1p. r

21. In a. photographic liquid treating apparatus for exposedprints, the combination with a liquid holding receptacle and a conveyor having print im aling devices thereon and travelling in a pat above the receptacle for the conveyor at the far en of the receptacle arranged so that the travel of the impaling devices is reversed in passin said supporting means, a movable stripper or operatively engaging the impaled print while the impaling devices are reversed, and means for drivin the conveyor and stripper in timed relationship. r

22. In a photographic liquid treating apparatus for exposed prints, the combination with a liquid holding receptacle and a conveyor having print impaling devices thereon and travelling in apath above the receptacle to carry a print thereto,'of sup rting means for the conveyor at thefar en of the receptacle arranged so that the travel of the impaling devices is reversed in passing said supporting means, a movable stripper for operatively engagiiig'and removin the impaled print from said impalin devices while they are reversed to permit said print to fall into said receptacle, a guide bar adjacent said supporting means for guiding said print as a it falls, and means for driving the conveyor and .stripper in timed relationship.

23. In a photographic liquid treating apparatus for exposed prints, the combination with a liquid holding receptacle and a con- ,veyor having print impaling devices thereon I and travelling in a path above the receptacle to carry a print thereto, of sup orting means for the conveyor at the far en of the receptacle arranged so that the travel of. the impaling devices is reversed in assin said supporting means, a movable stripper or operatively engaging and removing the impaled print from said impaling devices while'they are reversed to permit said print to fall into said receptacle, a guide bar adjacent said su porting means for guiding said print as it fa s, a stop against w ich the print is thrust by the stripper to limits it movement, and means for driving the conveyor and stripper in timed relationship. I 24. In a photographic liquid treating apparatus for exposed prints, the combination with a liquid holding receptacle and a con- Y veyorhaving print impaling devices thereon and travelling in a path above the receptacle to carry a print thereto, of supporting means for the conveyor atthe far end of the recep- 'to carry a print thereto, of sup orting means porting means, a movable stripper for oper-' atively engaging and removing the impaled print from said impaling devices while they are reversed to permit said print to fall into said receptacle, a stop against which the print is thrust by the stripper to limit its movement, and means for driving the conveyor and stripper in timed relationship.

25. In a photographic liquid treating aparatus, the combination with a liquid holding receptacle mounted. toreciprocate upon its support, a carrier having impaling devices thereon adapted to impale and carry a print to the receptacle, a vibratory stripper adapted to engage the implaled portion of the print and deposit it in t e receptacle, a driving element, and a transmission mechanism adapted to communicate motion to the receptacle, the carrier and the stripper in timed relationship.

26. In a photographic apparatus, the combination with a reciprocatory liquid holding receptacle, of a carrier having print holding devices arranged to convey a photographic print into the receptacle and a stripper for dofiing the-print from the holding devices.

27. In a photographic apparatus, the combination with a reciprocatory liquid holding receptacle mounted on rolls, a carrier for conveying prints to the receptacle and means driven from a common source for operating the carrier and rotating the rolls back and forth in reverse directions toreciprocate the receptacle.

28. In a photographic apparatus, the combination with a print carrier having impaling deyices, thereon, and a liquid bath through which an impaled print is initially carried thereby, of a stripper adapted to cooperate with the impaling devices and dot? print therefrom, a liquid holding receptacle beneath the carrier arranged to receive 'the print, and a device engaglng the print and adapted to resist its forward progress, at the time the stripper is actingupon the 1mpaled portion thereof.

29. In a photographic apparatus, the com bination with a print carrier having impaling devices thereon and a liquid bath through "which an impaled print is initially carried thereby, of a stripper adapted tocooperate with the impaling devices and doti a pr nt therefrom, a liquid holding receptacle be neath the carrier arranged to receive the print, and a device engagingthe print and adapted to resist its forward progress at the time the stripper is acting upon the impaled portion thereof, said resisting device comprising a flat surface over which the wet print is dragged and which has. a tendency to adhere thereto.

30. In a photographic apparatus, the combination with a carrier having holding devices for engaging the advance edge of an exposed print, an initial liquid bath through which the print is carried thereby, a liquid holding receptacle into which the print is finally deposited, and a stripper located near one end of the receptacle for removing the print from the holding devices, the'top of the adjacent wall of the receptacle having associated therewith an interrupted guard surface to prevent the wet print from adhering thereto if it falls thereon. I

31. In a photographic apparatus, the combination with a (arrier having holding devices for engaging the advance edge of an exposed print, an initial liquid bath through which the print is carried thereby, a liquid holding receptacle into which the print is finally deposited, and a stripper located near one end of the receptacle for removing the print from the holding devices, the top of the adjacent wall of the receptacle having associated therewith an interrupted guard surface consisting of a plurality of spaced vertical ribs to prevent the wet print from adhering thereto if it falls thereon. 32. In a photographic print treating device, a developingtank, a reciprocatory hypo tray above and overlying thecsame, a conveyor for carrying a print through said developing tank and above and over said hypo tray, means adjacent said hypo tray for removing the print from the conveyor so that said print will fall into said tray, and means for reciprocating said tray to create waves therein to flow over and submerge said print.

33. In a photographic print treating device, a developing tank, a reciprocatory hypo tray arranged above and overlying the same, a conveyor forvcarrying a print through said developing tank and above and over said hypo tray, a stripper for disengaging the and mechanism for reciprocating-said tray to create waves therein to fiow over and submerge said print.

34. In a photographic print treating device, a developing tank, a reciprocatory hypo tray above and overlying said developing tank, a drip tray for sealing the hypo tray from the developing tank, a conveyor for carrying a print through said developing tank and above and over said hypo tray, means for transferring the print from the conveyor tothe hypo tray, and mechanism for reciprocating said tray .to create waves therein to flow over and submerge said print.

35. In a print treating device, a developing tank, a water tank, a reciprocatory hypo tray arranged ona level above said developing and water tanks, adrip pan for sealing said hypo tray from said developing tank but communicating with said water tank,

a conveyor for carrying a print through said developin and water tanks, and above and over said hypo tray, means for removing the print from the conveyor to the hypo tray, 5 and mechanism for'reciprocating said tray to create waves therein to flow over and submerge said print. y

36. Apparatus for treating photographic prints ofsheet material havlng a tendency w to float temporarily, comprising a receptacle for containing a print treating bath, conveying mechanism for carrying a print to and depositing it upon said bath, and mechanism for automatically moving said recep- |5 tacle to cause waves in said bath to flow over i and submerge said print.

37. Apparatus for treating photographic prints of sheet material having a tendency to float temporarily, comprising a developgo ing bath, a receptacle for containing a fixing bath, conveying mechanism for carrying a print from said developin bath to said fixing bath and depositing 1t thereupon, and mechanism for reciprocating said receptacle .1 to cause waves inv said fixing'bath to flow over and submerge said print.

'JOHN S. GREENE.

ARTHUR W. CA'PS.

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