US1031961A - Photographic-printing frame. - Google Patents

Description

F. E. PHILLIPS.

PHOTOGRAPHS PRINTING FRAME.

APPLIUATION FILED JUNE 10, 1911.

Patented July 9, 1912.

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Eli-l- COLUMBIA PLANOURAPH COUWASHINGTON D C P. B. PHILLIPS. PHOTOGRAPHIG PRINTING FRAME.

APPLIOATIQN FILED JUNE 10, 1911.

Patented July 9, 1912.

- 2 sums-$112111 2.

Snow 1 601 FRED EASTMAN PHILLTPS, OF SIOUX FALLS, SOUTH DAKOTA.

PHOTOGRAPHIC-PRINTING FRAME.

Specification of Letters Patent.

Patented July 9,1912.

Application filed. June 10, lgll. Serial No. 632,437.

To all whom it may concern Be it known that I, FRED EASTMAN PHIL- Lirs, a citizen of the United States, residing at Sioux Falls, in the county of Minnehaha and State of South Dakota, have invented certain new and useful Improvements in Photographic Printing Frames, of which the following is a specification, reference be ing had to the accompanying drawings.

This invention relates to improvements in photographic printing frames and has for its object to provide a pressure back and a holder therefor, means for arranging the negative plate in the holder, and cooperating means on the holder and pressure back whereby the latter is securely held upon the negative and may be easily and quickly removed from the holder.

Another object of the invention is to provide a pressure back of such construction that the print may be readily examined without removing the same during the printing process.

A further object of the invention resides in the provision of a negative engaging frame, a holder to receive said frame and yieldingly retain the same in position upon a negative mounted in the holder, and a hinged pressure back in said frame to re tain the sensitized paper upon the negative.

Still another object of the invention is to provide a photographic printing device of extremely simple construction and one which may be easily and quickly assembled.

With the above and other objects in view, the invention consists of the novel features of construction, combination and arrangement of parts hereinafter fully described and claimed, andillustrated in the accompanying drawings, in which Figure 1 is a perspective view of a photographic printing device embodying my improvement; Fig. 2 is a longitudinal section, taken on the line 2-2 of Fig. 1; Fig. 3 is an enlarged detail fragmentary transverse section, taken on the line 38 of Fig. 1, illustrating the means for retaining the negative engaging frame in the holder; Fig. 4: is a detail perspective View of the negative engaging frame removed from the holder;

and Fig. 5 is a similar view of the frame holder.

Referring in detail to the drawing 5 designates a substantially rectangular frame which is provided with an elongated opening 6, the walls of which extend in parallel relation to the sides and ends of the frame 5. A movable pressure back 7 is arranged within the opening 6 of the frame, and this pressure back is preferably formed in two sections, the opposed ends of which are hingedly connected as indicated at 8, whereby said pressure back sections may be independently moved. These back sections are of the same size and form and the section 7 is connected at one of its ends to one end of the frame 5 at the edge of the opening 6 thereof by means of a hinge 9. A turnbutton 10 is mounted upon the frame 5 adjacent one of the side edges of the opening 6 and is adapted to be moved over the back section 7 to hold the same within the frame opening. The other of the pressure back sections occupies the balance of the frame opening 6 and is adapted to be held therein by means of a second turn-button 11 which is mounted upon one end. of the frame. The button 11 may be utilized for holding both of the pressure back sections, the button 10 being turned to its inoperative position when it is unnecessary to eX- amine the print during the printing operation. One face of the pressure back sections is covered with felt 12 or other comparatively soft material for yielding pressure upon the negative plate and sensitized paper.

The frame and pressure back above described are adapted to be removably ar ranged in a plate holder 13. This plate holder is constructed of sheet metal and comprises a body portion 1% and the angular side walls 15. The free longitudinal edges of these side walls are curved or bent outwardly as indicated at 16, and said walls are slightly resilient so that they may be sprung outwardly from the edges of the body plate 14. The plate 14 has holding clips or tabs I? struck therefrom adjacent to its longitudinal edges, and said clips are adapted to engage over the glass plate 18 which is arranged upon the edge portions of the cen tral rectangular opening 19 of the holder to retain said plate in position while the pressure back frame is being fitted between the resilient side walls of said holder. Upon the plate 18 the negative film F and a sensitized printing sheet S are adapted to be positioned.

In order to firmly retain the frame 5 and pressure back 7 in engagement with the negative and sensitized paper, I provide the side walls 15 of the holder 13 with a plurality of resilient tongues 20 which are struck inwardly therefrom. These tongues are adapted to engage with the flanged plates 21 fixed to the longitudinal edges of the frame 5, said tongues and the flanges of the plates co-acting to retain the holder 13 and the frame 5 in assembled position. It will be observed that these tongues are arranged in three longitudinal series and are so spaced that they are engaged by the plates 21 when negative plates of different thicknesses are used, raid negative plates being adapted for arrangement on the glass plate 18.

In practice, the holder 18 is arranged in an inverted position shown in Fig. 5 and the glass plate 18 is arranged in the same over the opening 19 in the body plate let of said holder. The frame 5 is forced down wardly into the holder, forcing the side walls 15 thereof outwardly, until the tongues 20 are engaged by the flanges of the plates 21, and said flanges disposed beneath the tongues as shown in Fig. 3 by the side walls assuming their normal positions. The open ing 6 of the frame 5 is of the same size as the sensitized printing sheet, and the side walls of the frame at the inner edges of the openings 6 are preferably provided with finger notches 22 so that the fingers of the operator may be engaged with the edge of the pressure back section 7 to lift the same, said notch also facilitating the lifting of the sensitized printing sheet so that it can be readily examined or removed. After the holder and frame have been assembled with the film or negative plate engaged upon the transparent plate 18 and held thereon by the edges of the frame 5 which surround the opening 6, the pressure back sections are raised out of the opening 6 of said frame and the printing sheet is assembled therein upon the negative held between the assembled parts. After thus arranging the printing sheet, the pressure back sections are lowered into the frame opening and secured therein by means of the turnbuttons 10 and 11. After exposing the negative for the proper length of time, the pressure back section which is held by the button 11 may be released and raised from the opening 6 so that the print can be examined. If the exposure has been sullicient, the other of the pressure back sections 7 is then released and raised from the frame opening. If developing paper is being used in the printing operation, in which case there can be no examinati on of the image during printing, the button 10 is not engaged with the pressure back section 7, the turn-button 11 providing the necessary retaining means to hold the pressure back sections in place. The print can then be removed without disturbing the position of the negative plate, and another sensitized sheet arranged in the frame opening upon the negative. In this manner any number of prints may be made, the image of the negative occupying precisely the same position on the completed print in each instance.

From the foregoing it will be seen that I have devised a very simple and efficient printing device which is of great convenience in practical use, and which provides means for quickly and accurately assembling the various parts and holding the negative and sensitized sheet in their proper relative positions.

The device is also extremely durable and may be manufactured at a comparatively low cost.

While I have shown and described the preferred construction and arrangement of the various parts, it will be understood that the device is susceptible of considerable modification without departing from the es sential feature or sacrificing any of the advantages thereof.

I'Iaving thus described the invention what is claimed is 2- 1. In combination, a holder comprising a rectangular plate having parallel resilient side walls, said plate being provided with a central opening and having means formed thereon to removably hold a transparent plate over said opening, a frame adapted to be inserted between the side walls to engage the transparent plate and having an opening therein, means mounted in the opening of said frame to retain a negative and sensitized printing sheet upon the plate, longitudinal flanges secured to the side walls of said frame, the side walls of the holder having means arranged'thereon and co-actmg i.

with said flanges to removably hold the frame and holder in their assembled positions.

2. In combination, a holder consisting of a rectangular body plate having angular resilient side walls, the body of said plate being provided with an opening, and with means for retaining a transparent plate in position over said opening, a frame adapted to be arranged between the side walls of the holder, said frame having an opening there- 1n, the edge of the frame adprcent said opening engaging upon the negative arranged on said transparent plate, movably tongues to be engaged by said flanges and connected pressure hack sections arranged removably secure the frame in said holder. 10 in the opening of the frame to retain the In testimony whereof I hereunto affiX my printing sheet and negative in position, signature in the presence of two Witnesses.

' means for holding said sections in the open- FRED EASTMAN PHILLIPS.

ing, a longitudinal flange secured upon each WVitnesses: side of the frame, said side Walls of the Z. A. HAZARD, holder having inwardly disposed resilient ARTHUR STORY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.-

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