US815267A - Photographic-printing cabinet. - Google Patents

Description

- No. 815,267. PATENTED MAR. 13,1906.

0. (3.. GOURTRIGHT & A. D. MIKA.

PHOTOGRAPHIG PRINTING CABINET.

APPLIOATION FILED Alums, 1905.

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No. 815,267. PATENTED MAR. 13,1906. 0. G COURTRIGHT & A. D. MIKA. PHOTOGRAPHIC PRINTING CABINET APPLICATION FILED APB. 25, 1905.

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' Inventors.

022L067 filmy/21 k l m J'Atftorn eyS OTHO O. OOURTRIGHT AND ALBERT D. MIKA,

PHOTOGRA PHIC-PRINTINQ CABINET.

Specification of Letters Patent.

Patented March 13, 19c 6.-

Application and Apri125,1905. Serial No. 257,390.

T0 at whmn it may concern.-

Be it known that we, OTHo C. COURTRIGHT and ALBERT D. l\/.[IKA, citizens of the United States, residing at Fort Madison, in the county of Lee and State of Iowa, have invented a new and useful Photographic-Printing Cabinet, of which the following is a specification.

This invention relates to hoto raphic printing frames, and is particuliarly (T to facilitate the handling of the printing-pa per and to enable the centering of the negatives upon the print-paper without liability of the latter becoming light-struck.

Other objects reside in the provision of means to enable the convenient printing of panoramic views, to facilitate the ap li -ation of vignetting cards, and to enable the the light therefrom in a prompt and effective manner, so as to avoid overexposures when using quick-printing paper such as Velox, Argo, and the like.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a perspective view of a hotographic-printing frame embodying the eatures of the resent invention. Fig. 2 is a similar view, en showing the paper-holder folded back to disclose the position of a vignetting-eard. Fig. 3 is a frame. Fig. 4 is a vertical sectional view of the device. Fig. 5is'a horizontal sectional view. Fig. 6 is a perspective view' showing the manner of using the device for printing panoramic views.

Like characters of reference designate corresponding parts in each and every figure of the drawings. I

The present printing-frame is in the nature of tion of the light anr closed at the back by permanent wall portions and removable paper-holding means to enable the application and removal of the printing-paper and in: eludes opposite upright sides 1, a top 2, a bottom 3, and a permanent. lower rear or back section 1, which is set in slightly from the rear edges of the sides 1 and extends about enc-thiril of the height of the frame. From about the upper edge of the permanent back quick. exposing of the negative and cutting ofi of arged,

perspective view of the front of the and the side members 12 The middle portion of the seat or a box having an open front for the recepthe seat or rabbet 13 is holding frame madeup of a top 7, fitted snugly against the lower edge of the part 6 at substantially ri ht angles tothe inclined edge 5 of the sides oi ing in rear of said edge and in front of the top back section 6. A bottom 8 is fitted snugly against the top of the lower back section 4 and projects in front of the latter and in rear of the inclined back edges of the main frame.

The front of the frame is partially closed by means of ermanent spaced front members 9', and the back is partiall closed by corresponding permanent bac members 10 and 11, whereby the front and back of the plateholding frame are open centrally to admit li ht from one side of the device and to permit 0 the introduction and removal of negatives and printing-paper at the back of the device. Upright side members 12 extend between the front and back members 9 and 10 and 9 and 11 and also'between members 7 and 8,

As best shown in Fig. 5 of the drawings, it will be noted that the inner edges of the permanent back members 10 and 11: are rovided with corresponding rabbeted portions 13, forming seats or flanges against which a negative 14 is adapted to be placed,. so as to prevent displacement of the negative forwardly through the exposure-opening bounded by the top and bottom members 7 andS of the plate-holding the top and bottom frame. rabbet'l 3 of the back member 11 is interrupted by a finger-notch 15 in the rear or exposed face of the part 11 to' enable the convenient removal of the negative from the seat in which it is fitted.

It will here be explained that the depth of substantially the thickness of the negative in order that the back of the frame.

The means for holding the negative in its seat includes a back made up of a pair of members 16 and 17, which are of a size to fit easily between the top 7 and bottom 8 and to overlap the space or opening between theper- OF FORT MADISON, IOW'A.'

the main frame and project- I'IO IO rear face of the lattermay lie iiush with the a manent back members and 11, said members 16 and 17 being hinged together, as at 18. The foldable back member 17 'is in turn hinged to a third back member 19, the latter 5 being longer than each of the members 16 and 17 and the rear ed es of the top and bottom 7 and 8 being notc red or cut away, as indicated at 20 and 21, to accommodate the member 19, the latter being hinged at its lower edge, as at 22, to the bottom member 8 and normally held against the adjacent per-- manent back member 10 by means of a spring-clip 23, designed to snap over the top 7, so as to rigidly and detachably hold the member in place' The front of the exposure-opening through the plate-holding frame of the present device is controlled by. a pair of doors or shutter members 24, which have their hinged edges provided with the respective pintle-rods and 26, piercing suitable bearing ears or hinge members 27, secured to the top and bottom members 7 and 8 and projected slightly in advance of the latter. Each of these doors is provided with a sight-opening having a ruby-colored glass 28 to exclude actinic rays from the negative and at the same time to admit suilicient light to said negative to enable the examination of the negative without affecting the print-pa er. At the upper end of the pintle-rod 25 t ere is a crank-arm 29 extending forwardly, and another crank-arm 30 is provided upon the upper end of the pintle-rod 26 and extending inwardly from the top '7, the two crank-arms being connected by a suitable connecting-rod 31. A helical spring 32 is connected to the crank-arm 30 and to the adjacent side 1 of the main frame, while an actuating-cord 33 is connected to the crank 29 and passes outwardly through the adjacent side 1, there being a down turned elbow-guide 34 piercing the main' frame of the device and receiving the cord, so:

as to prevent binding thereof when working through the frame. The spring 32 normally and yieldably maintains the doors or shutters 24 closedjand these doors or shutters may be opened by manipulation of the cord 33.

For convenience in controlling the cord 33 there is a treadle 35, having the lower end of the cord connected thereto, said treadle being hinged to a base 36, which rests upon the floor, to which it may be anchored in a suitable manner. The opening of the doors or shutters under the influence of the controll' igcord 33 is limited by a stop 37 in the nature oi an angle-bracket secured to the front of he part 9 and disposed in the opening path ated support, as shown in Fig. c a window-sill, with the open directed outwardly, there of course being a curtain or othe closure to the window :e the present device is placed l to exclude the light from the room during th fitting of the print-paper in the frame. The movable back made no of the parts 16 and 17 is then opened, as in Fig. 2, and the negative 14 placed in the seat formed by the rabbets 13, as best shown in Fig. 5. The print-paper is then cut to the desired size and placed against the negative, which is llush with the back of the frame, after which the movable back or back closure is folded llat against the pa )er, so as to hold the samein contact 7 with t 1e negativefthe front face of the back closure of course bein lined with felt or other material in the usua manner of printing frames. Withthe parts th'us assembled pressure upon the treadle will quickly and positively open the shutter made up of the doors 24, so as to quickly and ositivel admit light simultaneously to al parts 01 the negative and through the latter to the printpaper. By having the shutter members SWIDQ open instead of sliding the admission of liglit to the negative is practically simultaneous throughout its entire area, whereby all parts of the printing-paper will be exposed for the same interval of time, which insures a uniformity of the print without any liability of overexposure of any portion thereof. At

ter. the exposure has been continued for the desired interval the foot is removed from the treadle and the shutter is promptly closed by the s ring 82, whereupon the print may be quick y removed from the printingirame by opening the back closure. The curtain or other closure for the window is of course drawn prior to opening the shutter, and before or after the curtain has been drawn the operator may view the position of the negative upon the print-paper by means of the rubylight, which is admitted through the ruby glasses 28 of the shutter, so as to enable oon venient centering of the paper upon the negative.

To enable the use of a vi netting slide or 'card, the top 7 of the plateioldin frame is 'K) provided with a slot 38 in rear of the perma nent back portion 6 of the main frame, the inner faces of the parts 12 being provided with corresponding grooves or guideways39, communicating with the ends of the slot 38, for the reception of the. vignetting card or slide 40, the bottom 8 of the plate-holding frame being provided \Vitil a groove or seat 41 for the reception of the lower end of the card.

As the present invention is particularly designed for printing fast paper, such as Velox, Argo, &c., it is an important feature that the sit top, and bottom of the main frame prosomewriat in fron of the exposure-openas to form a g rd or shield to prevent the suns ra om falling negative, and inclined slightly 5 furt er guard in sunlight directly u t eceiving In printing a series of pictures upon as1ngle sheet of paper, particularly panoramic views, the entire back closure is opened,- as shown in Fig. 6, and the free end portion 42 of a roll of paper 43 is placed across the back of the device, with its lower ed e supported upon the ledge afforded by t e rear proected portion of the part 8, after which the closure is returned to its normal position, so as to hold the paper in place flat against thenegative. After each exposure the negative is removed, another negative inserted in place thereof, and the print-paper shifted so as to bring the margins of the'first print and the new ne ative into alinement in order that the secon print may form a continuation of the first print, these operations being successively continued throughout the entire series of pictures. The ruby glasses 28 of the shutter members are of particular importance in printing panoramic views, as they enable the careful examination of the negative through the print-paper from the back of the device to enable the fitting of one edge of the previous print to. the adjacent edge of the negative to be exposed without danger of the paper becoming light-struck, thereby facilitating the handling of the paper and insuring a proper engagement and obviating overlapping of the successive views.

While the operation of the present device has been described in connection with ordinary sunlight, it is of course capable of being used with electric or other artificial light with good results.

Having thus described the invention, what is claimed is-- 1. A printing-frame 0 en at the front and having a back provide with an exposure opening, negative and paper holding means associated with the o ening, and a light-excluding shield extending around the top and sides of the opening and projecting in front thereof.

2. Aphotographic-printing frame having a negative receiving seat adapted to support a negative flush with the back of the frame, and a paper supporting ledge extending across the bottom and extended at one side of the seat at the back of the frame.

3. A photographieprinting frame having a negative-receivin seat adapted to support a negative flush wit the back of the frame, a paper-supporting ledge extending across the bottom and extended at one side of the seat along the back of the frame, a removable pa per-holding back, and a shutter at the front of the frame.

4. A. photographic-printing frame having a negative-receiving seat adapted to support a negative fiush with the back of the frame, a papensupportin g iedge extend cross the bottom and. extended at one aid the seat along the back of the frame, and paperholding back adapted to close across the negative receivin seat and capable of being moved clear o the upper side of the paper- "thereof along the back of theframe, and a foldable paper-holoir g back hinged to the frame at the opposite side of the seat and adapted to lie across the seat and also capable ofbeing' swung clear of the upper side of the paper-supporting ledge. I

6. A photographic-printing frame having a,negat1ve-receiving seat adapted to hold a negative flush with the back of the frame, a

paper-sup orting ledge extending across the bottom 0 the seat with one end projected beyond the seat, and a paper-holding back adapted to fold across the seat with one end pro ected across the other end of the papersupporting ledge and hinged to the frame.

7. In a photographic-printing frame, the combination of an upright main frame which is open at its front and is provided with afor- Wardly inclined back portion, the inclined back portion of the frame being provided with an exposing-opening, a plate-holding frame fitted in the opening and conforming to the inclination of the inclined portion of the back, swinging shutter members mounted upon the front of the plate-holding frame, controlling means piercing one side of the main frame for simultaneously opening the shutters, a negative-receiving seat at theback' of the plate-holding frame adapted to support a negative flush with the back of the frame, a aper-supporting ledge across the bottom 0' the seat and projected at one side thereof, and a foldable paper-holding back capable of extending across the negative-re ceiving seat with one end projected beyond the seat and also projected across the adj acent end of the ledge and hinged to the back of the frame.

8. A printing-frame 0 en at the front and having a back provide with an exposureopening, negative and paper holding means associated with the opening, and a light-exeluding shield extending around the top and sides of the opening and projecting in front thereof, the portion of the back having the exposure-opening being inclined upwardly and forwardly. a

In testimony that we claim the foregoing our own we have hereto affixed our signa-

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