US2100920A - Unitary structure for supporting photoprinting apparatus - Google Patents

Description

Nov. 30, 1937. w. H. ROGERS 2,100,920

UNITARY STRUCTURE FOR SUPPORTING PHOTOPRINTING APPARATUS Filed June 5, 1956 4 Sheecs-Sheet l gvwcmkan m M/lfazn Hen/31 P09 1 a Not-u c4 W W J Nov. 30, 1937. w. H. ROGERS UNITARY STRUCTURE FOR SUPPORTING PHOTOPRIN'IING APPARATUS Filed June 5, 1936 4 SheetsSheet 2 DH l irf z- A II il Nov. 30, 1937. w. H. ROGERS UNITARY STRUCTURE FOR SUPPORTING PHOTOPRINTING APPARATUS Filed June 5, 1936 4 SheetsSheet 3 M/ham 'Hmqy Rage/ 9,

Nov. 30, 1937. w H. ROGERS 2,100,920

UNITARY STRUCTURE FOR SUPPORTING PHOTOPRINTING APPARATUS Filed June 5, 1936 4 Sheets-Sheet 4 Patented Nov. 30, 1937 PATENT OFFICE UNITARY STRUCTURE FOR SUPPORTING PHOTOPRINTING APPARATUS William Henry Rogers, Washington, D. 0.

Application June 5, 1936, Serial No. 83,789

20 Claims.

This invention relates to improvements in supporting structures and more particularly to cabinet structures of a character suitable for supporting and housing photo-printing apparatus used in producing indicia on plane surfaces by methods well known in the art.

One important use of this invention is for the forming of images on metal and other printing plates for use in printing apparatus employing planographic methods. The advantages of planography, as a means of reproduction, have resulted in widespread adoption of this process in the larger commercial printing organizations. More recently, the planographic process has been introduced in business ofl'ices and smaller printing plants for reproduction work on a smaller scale than that carried on by large printing enterprises. While reproduction processes have long been carried on in business ofiices and print ing plants operating on a relatively small scale for obtaining duplicate copies of letters, circulars, pamphlets and the like, by well known methods employing transfer inks, stencils, etc., it is well known that such processes'fail to provide the speed, flexibility and quality of work which may be obtained from the planographic process under similar conditions of use and operation. Further, the planographic process provides an inexpensive means for obtaining faithful reproductions which are diiiicult to reproduce by processes now commonly in use by business offices and plants operating on a small scale, such for example, as photographs and other art work having areas of varying density.

However, difiiculty in adaptingthe planographic process to business ofiice use has resulted because of the expensive equipment and elaborate technique which heretofore have been necessary inpro ducing planographic printing plates from which the reproductions are printed. Also, at the present time, a plurality of devices is necessary for use in producing the printing plates, and these devices are not only expensive but take up so much space that their use is objectionable in business cfiices and printing plants. Further, the technique of properly coating with light sensitive materials and exposing the plates to light is of such complicated nature that a skilled operator is necessary, if serviceable printing plates are to be obtained.

Business oifices and the smaller printing establishments, which have been forced to employ the process because of the character of printing desired, by necessity have been-obliged to install complicated and costly equipment or else have the planographic plates processed in well equipped photo-printing laboratories, and these factors have resulted in materially curtailing the use of the planographic process up to the present time.

Therefore, this invention has for an important object the provision of a unitary photo-printing structure embodying the necessary devices for producing printing images on plates adapted for planographic printing presses.

Another object of my invention is to provide a compact cabinet structure wherein photo-printing equipment suitable for preparing pianographic plates may be supported and housed.

Another object of my invention is to provide an improved structure whereby devices necessary for producing planographic printing plates may be conveniently folded together when not in use and whereby the said devices are conveniently supported for the varoius operations when in the operating position.

Another object of my invention is to provide an improved structure for supporting and housing a plurality of photo-printing devices necessary i or preparing planographic plates for printing which coacts with said devices to properly align and position them for use in carrying out the necessary operations when they are removed from the housed position.

Another object of my invention is to provide a unitary structure for supporting photo-printing apparatus whereby the operations for producing printing areas on planographic plates may be carried out with precision by persons unskilled in the printing art, such, for example, as persons regularly employed in business offices.

A still further object of my invention is to provide improved photo-printing cabinet structures serving to support and house devices necessary for producing the printing areas of planographic plates which is inexpensive and is of such a cornpact nature and shape when in the closed post tion as to effect the appearance of conventional oi'hce cabinets.

In addition to these objects my invention is conveniently adapted for use in producing chari acters upon planographic surfaces, such, for ex ample, as engraving plates, rotogravure plates, signs and name plates, and it is a further object of my invention to provide improved photo-printing structure for producing lettering, artwork, or other indicia upon metals, cellulose derivatives, plastic substances, paper and other non-metallic materials.

With the foregoing and other objects in view, my invention is embodied in the arrangements Figure is a cross sectional view of the fluid;

operated printing-frame;

Figures 6 and 7 are detailed views of the sliding mountings for supporting the light emitting device;

Figure 8 is a cross section showing the details of the slidable mounting for the retouching and masking table; and

Figure 9 is a wiring diagram for the electrical units of the machine.

As shown in Figure 1, the invention contem plates a unitary structure adapted to support a plurality of equipments necessary for carrying on the operations for forming indicia and images upon plane surfaces by the use of light rays. The structure disclosed in this particular embodiment comprises a cabinet in which the devices are adapted to be housed and supported, and is designated by the reference numeral 80. The structure is formed by upright supporting members M, i2, i3 and M and cross members it, it, it and it: and also it, 26, 211 and 22 which constitute the frame of the structure. This frame structure together with the side panels 23 and 241 are fabricated in any conventional manner to form the compartment broadly designated by reference numeral 25. It is contemplated that other methods may be employed for fabrieating the compartment 25, such, for example, as single unit construction or the like. Further, it is contemplated that in some instances, it may become desirable to eliminate the side panels 23 and 24 so that the compartment will not be completely enclosed on the sides inasmuch as this modification may be made without interfering with the utility or functioning of the structure. The side of cabinet l0 designated as 30 is slidably supported by the cabinet structure so that it may be moved outwardly from the closed positions to form an opening through which a light emitting source may be moved, as will be described later. The enclosing means for the side opposite 30 consists of a covered receptacle designated as 9!] which is movably supported to be located in either a closed or opened position. The cover for the cabinet which is designated by numeral l30 in Figure 4 comprises a plurality of folding sections, one of which is movably fastened to the cabinet structure. This section also serves as a support for an inter-positioned slidably mounted retouching and masking table which will be described later in more detail. The upper portion of the compartment 25 is entirely enclosed when side 30, receptacle Wand cover I are placed in their closed or folded positions. Cabinet ill is preferably mounted on suitable castors 26 so that it may readily be moved about the ofice or other location in which the device is to be employed in order to place the cabinet out of the way when not in use or for conveniently positioning the photo-printing equipment when it is to be used.

A light emitting device indicated by reference numeral 32 is movably supported by the cabinet structure and is adapted to be moved from the housed position within the cabinet as shown in Figure 4 through one side thereof to a position externally removed from its housed position as shown in Figures 1, 2 and 3. In order to simplify the means for movably supporting the light emitting device 32 and panel 30, they are both preferably mounted on common supporting members 34 which slidably engage supporting means within the cabinet structure described later. By supporting these members inthis manner, both the panel 30 and light emitting device 32 move as a unit when it is desired to close the cabinet or open it for operation. In addition to the light emitting device 32, a reflector 35 and an enclosing casing 36 may be mounted to move with the light emitting device 32 as shown in Figures 2, 3 and 4.

While it is contemplated that the supporting means 34 for the panel 30 and light emitting device 32 may be slidably supported by the cabinet in any conventional manner, this can be con veniently accomplished by employing the structure shown in Figures 6 and 7. A channel-way 37? is located adjacent each side of the'cabinet in which the respective members 34 are slidably engaged so that they may be reciprocated therein. Each of the channel-ways 3? are formed by spaced members 38 and 353 which are secured to the respective sides of the cabinet frame structure and side panels as, for example, by the use of spacing elements 411 shown in Figures 6 and 7. Handles 40 are located on the outside of the panel 3b in order that the sliding unit may be conveniently moved either in closing the unit or opening for operation.

A printing frame designated by the numeral is hingedly mounted to be moved from a vertical to substantially horizontal position within the compartment 25. Printing frame 45, which preferably is of the-fluid pressure type, is secured by hinges 46 to the upper portion of the cabinet as shown in Figures 2 and 4 so that when the cabinet cover 530 is opened and the printing frame 45 is horizontally positioned it will lie slightly above the plane of the cabinet top and serve as a working top therefor. As is particularly shown in Figure 4, the face of the printing frame 65 is directed toward the light emitting source '32 when it is rotated into substantially vertical position.

The printing frame 45 consists of a base member 47 over which extends a member 48 which serves as a support for a resilient air-tight blanket 49 as is particularly shown in Figure 5. Resilient sealing spacers 50 are located adjacent the edges of the blanket 49 and form an air-tight connection between the resilient blanket 49 and the glass face 5!. For convenience in opening, the glass face 5! is mounted in a supporting frame 52 which is-hin'gedly connected to the base member 4.? by hinges 53. In order to maintain securely the glass face 5| against the resilient sealing spacers 50, a cam-type locking device 54 is secured to the supporting frame 52 whichhas an apertured member 55 adapted to pass over a bossing 56 on the base member 4'5 when the lock ing device 54 is in the loose position. By rotating the crank 51 the locking device is tightened and. theapertu'red member 55 is locked in engagement with the bossing 56, thus securely holding the glass and sealing spacers together to insure anair-tight compartment between the glass face 5! and the resilient blanket 49.

A conduit connection 58 is provided to the compartment between the resilient blanket 49 and face glass 5| which connects by means of a flexible conduit 59 located adjacent a side panel such as 24'with an atmosphere venting valve 60, vacuum gauge SI and the intake 52 of a vacuum pump 63. The vacuum pump 63 is driven by any suitable power source such as a motor 64 through conventional gearing indicated at 65. The vacuum pump, motor and gearing may be conveniently located at the bottom of the cabinet I0, on adequate supporting means as shown in Figures 1, 2 and 3. A muiiier 66 may be connected to the exhaust port of the vacuum pump in order to reduce the noise resulting from the exhausting gas.

It has been previously stated that the printing frame 45 is secured by hinges 46 to the cabinet structure. These hinges are secured to the base member 41 of the printing frame and to a cross support 26 of the cabinet frame. The printing frame 45 is conveniently rotated by the use of handle 10 which is securely fastened to the printing frame 45 at a point adjacent the axis of the hinges as shown in Figure 3. In order to make the rotation of the printing frame as easy as possible a biasing spring 15 is attached at one end to the cabinet as at 16 and at the other end to a lever arm 11 which is securely attached to the base member 41 adjacent the hinges 46. The spring 15 acting through the lever arm 11 tends to counter-balance the downwardly directed torque of the printing frame 45 about the hinges 46. The printing frame is secured in both the horizontal and vertical positions by means of a spring biased latch H which is adapted to engage a projection in the cabinet frame cross member 2I when in the horizontal position and a portion of the cross member 21 when in the vertical position. The operation of the spring biased latch H is controlled from the upper portion of the cabinet by a ring 18 which is connected by any suitable means, such as a chain 19, with the latching mechanism.

As has been previously described, the receptacle is hingedly supported within the cabinet I0 on the side opposite to that through which the light emitting device 32 is withdrawn, and is adapted to be rotated upon the supporting hinges 9| to substantially horizontal position where it is maintained by the folding leg 92. The hinges 9I are secured to cross member I9 of the cabinet I0 and to the receptacle 90 at its upper edge as shown inFigs. 2 and 4. A cross member 93 extends across the bottom of receptacle 90 which supports a bearing 94 for shaft which extends vertically through an opening 96 in the bottom 91 of a circular container 98 in which a turntable 99 is positioned. The turntable 99 is secured on the upper portion of shaft 95 and is of such a size as to freely rotate in the container 98, The turntable 99 is rotated by means of the shaft 95 which is connected with a motor I00 through suitable gearing such as friction wheel IOI connected to shaft 95 and friction wheel I02 connected on the motor shaft. The motor I00 may be supported in the receptacle 90 in any suitable manner such as by member I05 and it is energized through flexible conductors as will be hereinafter explained. The supporting leg 92 is hinged at I03 and adapted to be folded against the bottom of receptacle 90. It is held in the folded position by spring clamp I04a when the receptacle is recessed in cabinet I0. The container 98 is preferably maintained in place by lugs I04 secured to reinforcing members III) 10- cated in the upper corners of receptacle 90. although it is contemplated that other conventional means may be employed.

A cover I06 is provided for the receptacle 90 which is hinged at I01 so that it may be opened to gain access to the interior of the receptacle. A handle I08 is located on the cover for purposes of conveniently moving the cover I06. As shown in Figure 4, the cover I 06 forms the outside panel of the cabinet when the receptacle 90 is rotated on its hinges 9I to its recessed position within the cabinet.

The cover I30 for cabinet I0 consists of folding cover sections I 3| and I32 which are adapted to be folded back upon themselves. lies flush with the cabinet top when the printing frame 45 is vertically positioned as is clearly shown in Figure 4. Cover section I 3I is secured to cross member 2| of the cabinet I0 by hinges I33 which allow the section to be rotated through an angle of to the position shown in Figv ures 1 and 2 which is substantially horizontal and on a plane with the cabinet top. Section I3I is maintained in this position by section I32 which acts as supporting means for section I3I. Section I32 is secured to section I3I by hinges I34 which allow the section to be positioned substantially vertically. Folding legs I35 are provided for section I32 which fold against the frame as indicated in Figure 1 when the photoprinting devices are in housed position. As shown in Figure 4, the panel of section I32 forms the outside member of the cabinet cover when the sections are folded together and rotated on top of the cabinet.

Cover section I3I consists of a rectangular frame which supports a panel adapted for slidable movement. Details of this structure are shown in Figure 8 wherein the frame of cover section I3I is designated as I36 and the slidable panel as I31. Any conventional structure may be used for effecting the sliding action, such as mounting channel-ways I38 within the sides of the frame I36 in which a panel engaging member I39 is adapted to slide. As shown in Figure 1, panel I31 may be withdrawn from cover section I 3i to form a table section and handle I40 is provided for facilitating this movement. Slidable panel I31 is preferably formed of glass so that the table may be used for retouching and masking purposes during the preparation of the printing plates. When the sections are folded in place on top of the cabinet, the glass panel is adequately protected from breakage by the outer panel of section I32.

The circuits for the electrical units are shown in Figure 9. Energy for the light emitting device, which is preferably of the arc type, is supplied through conductors I 50 to the light emitting device 32. A switch I5I, current indicating instrument 552 and resistance I53, shown schematically in the diagram, are interposed in this circuit. Energy for motor 64 which drives the vacuum pump and that for turntable driving motor i 00 is supplied through conductors I55. Switch I56 is provided to control the energy supplied to motor 64 and switch I51 serves to control the energy in the circuit of motor I00. A variable resistance I58 is provided in the circuit of motor I00 so that the speed of turntable 99 may be properly adjusted. The leads supplying energy to the terminals of the light emitting device 32 and motor I00 are formed of flexible conductors to allow the respective devices to be moved without interfering with the electrical The cover I circuits. Plug connections I63 may be provided so that the circuits may be conveniently energized from service outlets.

An instrument panel I60 is mounted between cross members I9 and 26 on which the instruments and controls are mounted so that the operator may have complete control of the various operations at all times. As shown in Figure 3, current indicating instrument I52, control I SI for variable resistance I58 and switches I5l, L55, and I5? are mounted on the instrument panel IGil. In addition, the vacuum gauge 6i and control I62 for the atmospheric venting valve 86 are also mounted on the instrument panel I50.

When it is desired to place my photo-printing apparatus in operation, the structure is opened out from the housed position and the printing frame is moved into horizontal position so that the apparatus will be in the position shown in Figure 1. The plate which is to receive the indicia, is placed on the turntable 99 and whirled to effect even distribution and drying of the sensitizing solution which is placed thereon in any convenient manner. During the whirling operation the receptacle eoveris lowered into place to exclude light and foreign material from the plate coating. After this operation the sensitized plate is placed on the resilient blanket within the printing frame and a photographic negative or other light transmitting medium including opaque or translucent indicia aligned thereon, after which, the printing frame is closed and a vacuum created in the frame by means of the pump to eifect intimate contact between the negative and plate. The necessary retouching and masking of the negative is accomplished on the glass panel I 37 after it has been moved into table forming position, prior to placing it in the frame. The printing frame containing the plate and negative assembty is then rotated into vertical position and the light emitting device is properly located-for correct impingement of the light rays. light emitting device are properly aligned by the cabinet structure, it is only necessary to position the light a proper distance from the face of the printing frame so that the rays will evenly impinge upon the entire surface to be exposed. After exposure, the printing frame is rotated back to the horizontal position and the vacuum within the printing frame is vented. The exposed plate may then be removed from the printing frame for development by any of the methods well'lmown in the art.

The unitary structure of this invention, as will be apparent from the above description, provides a ready means for performing the operation of placing indicia upon a printing plate which includes sensitizing the plate, retouching and masking the negative, assembly of negative and plate, and exposing the sensitized plate. Further, the unitary cabinet structure provides a compact means for housing the photoprinting equipment when not in use, since as has been pointed out above, the parts may be folded within the cabinet and placed out'of the way. In-

asmuch as the apparatus for carrying on the photo-printing operations is so conveniently located and adapted for ease of control, the operation of preparing the plates is so simplified that it may be readily practiced by persons unskilled in' the printing art.

Various modifications and embodiments of my invention will be apparent to those skilled in the Inasmuch as the printing frame and art, and it is my desire that the appended claims shall cover all modifications and arrangements which come within the scope and spirit of my invention.

Having thus described certain embodiments of my invention, what I claim as new and desire to secure by Letters Patent is:

1. A unitary structure for supporting photoprinting equipment comprising a compartment, means for forming an opening in one side thereof, a light emitting device movably supported by said structure and adapted to be moved through said opening, a printing frame movably supported by said structure and adapted to be moved to substantially horizontal or vertical positions therein, and a recessed receptacle forming a side of said compartment hingedly supported by said structure.

2. A unitary cabinet structure for supporting photo-printing apparatus comprising a compartment, means for forming an opening in a side of said compartment, a light emitting device movably supported by said cabinet and adapted to pass through said opening, mounting means carried by said cabinet for rotatively Supporting a printing frame within said cabinet with the face thereof in alignment with the light emitting device when the printing frame is rotated into substantially vertical position, and a closure for the side of the compartment opposite the aforementioned opening comprising a covered receptacle movably supported to be recessed in said latter mentioned side.

3. A unitary cabinet structure for supporting photo-printing apparatus comprising a compartment, means for forming an opening in a side of said compartment, a light emitting device movably supported by said cabinet and adapted to pass through said opening, mounting means carried by said cabinet for rotatively supporting a printing frame within said cabinet with the face thereof in alignment with the light emitting device when the print-frame is rotated into substantially vertical position, and a closure for the side of the compartment opposite the aforementioned opening comprising supporting means for a turntable and driving means therefor movably supported to be recessed in said latter mentioned side.

4. A unitary structure for supporting photoprinting equipment comprising the combination of a compartment, means for forming an opening in one side thereof, a light emitting device movably supported by the structure and positioned without said compartment adjacent said opening, means carried by said structure for guidingsaid light emitting device into said compartment and a printing frame rotatively supported by said structure and adapted to be moved into substantially parallel alignment within the compartment with said light emitting device when it is positioned without the compartment.

5. A unitary structure for supporting photoprinting equipment comprising a compartment having a movable side panel, a light emitting device located within said compartment, supporting means whereby movement of the panel to form an opening in the compartment and withdrawal of the light emitting device therethrough from within the compartment are accomplished simultaneously, and a printing frame movably supported within said compartment adapted to be moved into substantially vertical position whereby light rays emanating from the light emitting 2,100,920 7 device positioned without the compartment may impinge upon the face of the printing frame.

6. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment, means for forming an opening in a side thereof, supporting means carried by said cabinet for moving a light emitting device from without said compartment through said opening, supporting means carried by said cabinet for rotating a printing frame from a substantially horizontal position in the upper portion of the compartment, and a receptacle supported by said cabinet and adapted to be moved from a recessed location within a compartment side to a substantially horizontal position.

7. A unitary structure for supporting photoprinting equipment comprising a compartment having a movable side panel, a light emitting device located within said compartment, a reflector positioned adjacent said light emitting device and a supported by said structure, means for simultaneously moving said panel and positioning said light emitting device and reflector externally of said compartment, and a printing frame movably supported within said compartment adapted to be moved into substantially vertical position whereby light rays emanating from the light emitting device positioned externally of the compartment are directed to impinge upon the face of the printing frame by said reflector.

8. A unitary cabinet structure for supportin photo-printing equipment comprising a compart ment having a cover and a plurality of movable side panels, a light emitting device located with-- in said cabinet, a reflector positioned adjacent said light emitting device and supported by said cabinet structure, means for simultaneously moving a side panel and positioning said light emitting device and reflector externally of said cabinet, a printing frame movably supported within said cabinet adaptedto be moved from horizontal into substantially vertical position whereby light rays emanating from the light emitting device positioned externally of the cabinet are directed to impinge upon the face of the printing frame by said reflector, hinged supporting means for said cover whereby it may be moved to effect access to the printing frame which serves as the cabinet top when in the horizontal position, and a second movable panel positioned opposite to said aforementioned movable panel comprising a covered receptacle hingedly supported by said cabinet and adapted to be recessed in said compartment.

9. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment having a cover and at least one movable side panel, a light emitting device located within said cabinet, a reflector positioned behind said light emitting device and supported by said cabinet structure, means for simultaneously moving said panel and positioning said light emitting device and reflector externally of said cabinet, a printing frame movably supported within said cabinet adapted to be moved from horizontal into substantially vertical position whereby light rays emanating from the light emitting device positioned externally of the cabinet are directed to impinge-upon the face of the printing frame by said reflector, and hinged supporting means for said cover whereby it may be moved to effect access to the printing frame which serves as the cabinet top when in the horizontal position.

10. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment, means supported by said cabinet for forming an opening in one side thereof, alight emitting device movably supported by said cabinet and adapted to be moved through said opening, a hinged cover for the top of said compartment, and a movably mounted printing frame aligned with said light emitting device for purposes of exposure adapted to be moved to substantially horizontal position to serve as a closure for the top of said compartment when the cover is opened.

11. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment, means supported by said cabinet for forming an opening in one side thereof, a light emitting device movably supported by said -cabinet and adapted to be moved through said opening, a hinged cover for the top of said cabinet and a movably mounted printing frame adapted to be aligned with said light emitting device for purposes of exposure, and means for moving said printing frame into substantially horizontal position wherein to serve as the top of said compartment when the said cover'is opened.

12. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment, means supported by said cabinet for forming an opening in one side thereof, a light emitting device movably supported by saidcabinet and adapted to be moved through said opening, a. movable side comprising a covered receptacle positioned opposite aforementioned means, a hinged cover for said cabinet, and a printing frame sup-' supported by said cabinet for forming an open-' ing in one side thereof, a light emitting device movably supported by said cabinet and adapted to be moved through said opening, a movable side comprising supporting means for a turntable and driving means therefor and a'cover, a hinged cover for said cabinet, and a printing frame supportedwithin the compartment adjacent said movable side and adapted to be moved into a horizontal position to serve as the cabinet top when the said cabinet cover is in open position.

14. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment, means for forming an opening in one side thereof supported by said cabinet, 2. light emitting device rnovably supported by said cabinet and adapted to be moved through said opening, a printing frame movably supported within said cabinet adapted to be moved from vertical to horizontal position, and a hinged cover for said cabinet comprising a plurality of folding sections, said printing frame when moved to horizontal position serving as a top for the cabinet when the cover is in open position.

15. A unitary cabinet structure for supporting photo-printing apparatus comprising a compartment, means for forming an opening in a side of said compartment, a light emitting device movably supported by said cabinet and adapted to pass through said opening, mounting means carried by said cabinet for rotatively supporting a printing frame within said cabinet with the face thereof in alignment with the light emitting device when the printing frame is rotated into substantially vertical position, a closure for the side of the compartment opposite the aforementioned opening comprising a covered receptacle movably supported to be recessed in said latter mentioned side, and a cover comprising upper and lower sections, movable supporting means connecting said lower section with said cabinet structure so that the section may be rotated through substantially a straight angle, hinged connecting means for said upper and lower sections whereby the upper section may be rotated to vertical position when the lower section is in its opened position in order to support said lower section, and slidably supporting means supported by said lower section for a panel recessed within said lower section and adapted to be moved therefrom.

16. A unitary structure for supporting photoprinting equipment comprising a compartment, means for forming an opening in one side thereof, a light emitting device movably supported by said structure and adapted to be moved through said opening, a printing frame movably supported by said structure and adapted to bemoved to substantially horizontal or vertical position therein, and a recessed supporting means for a turntable and driving mechanism hingedly supported by said structure and adapted to be rotated to a horizontal position.

17. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment having a cover and a plurality of movable side panels, alight emitting device located within said cabinet, a reflector positioned behind said light emitting device and supported by said cabinet structure, means for simultaneously moving 'a side panel and positioning said light emitting device and reflector externally of said cabinet, a. printing frame movably supported within said cabinet adapted to be moved from horizontal into substantially vertical position whereby light rays emanating from the light emitting device positioned externally of the cabinet are directed to impinge upon the face of the printing frame by said reflector, hinged supporting means for said cover whereby it may be moved to client access to the printing frame which serves as the cabinet top when in the horizontal position, and a second movable panel positioned opposite to said aforementioned movable panel comprising supporting means for a turntable and driving means therefor hingedly supported by said cabinet and adapted to be recessed in said compartment.

18. A unitary cabinet structure for supporting photo-printing equipment comprising a compartment having at least one movable side, means supported by said cabinet for forming an open ing on one side thereof, a light emitting device movably supported by said cabinet and adapted to be moved through said opening, an instrument panel located adjacent the upper portion of said compartment, a movable side comprising supporting means for a turntable and driving means therefor, a hinged cover for said cabinet, and a printing frame movably supported within the compartment adjacent said movable side and adapted to be moved into a substantially horizontal position adjacent said instrument panel so that said frame and panel will serve as the cabinet top when the cover is in open position.

19. In a unitary structure, the subcombination of a compartment formed of a frame struc ture and enclosing side panels and a cover therefor, said cover comprising upper and lower sections, movable supporting means connecting said lower section with said frame structure so that the section may be rotated through substantially a straight angle, hinged connecting means for said upper and lower sections whereby the upper section may be rotated to vertical position when. the lower section is in its opened position in order to support said lower section, and a panel slidably supported by and in the plane of said lower section.

20. A unitary structure for supporting photoprlnting apparatus comprising the combination of means for movably supporting a printing frame adapted to be moved from horizontal to vertical position and means for movably supporting a light emitting device whereby the said light emitting device may be moved from a position adjacent to said printing frame to a position spaced a distance from said printing frame, said former mentioned means also serving to align said printing frame with the light emitting device so that rays of light may impinge upon the face of the printing frame when in the vertical position from the said light emitting device when located in said latter described position.

WILLIAM HENRY ROGERS.

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