US1363410A - Photographic-printing frame - Google Patents

Description

A. K. GULHAUG.

PHOTOGRAPHIC PRINTING FRAME.

APPLICATlON FILED OCT- 24. I919- Patented Dec. 28, 1920.

2 SHEETS-SHEET l.

A. K. GULHAUG.

PHOTOGRAPHIC PRINTING FRAME.

APPLlCATlON FILED OCT. 24. 1919.

1 ,363,410, Patented Dec. 28, 1920.

2 SHEETS-SHEE] 2.

Swumboz mmn UNITED STATES PATENT OFFICE.

ALBERT K. GULHAUG, OF WOLF POEN'I, MONTANA.

PHOTOGRAYHIC-PRINTING FRAME.

Application filed October 24, 1919.

To all whom it may concern:

Be it known that I, ALBERT K. GULHAUG, a citizen of the United States, residing at Wolf Point, in the county of Roosevelt and. State of Montana, have invented certain new and useful Improvements in Photographic- Printing Frames, of which the fOllOWing is a specification, reference being had to the accompanying drawings.

This invention relates to the art of photography, and particularly to printing frames.

The general object of my invention is the provision of a frame which is adapted to be used in connection with any of the standard photographic printing machines now on the market, but which is particularly adapted for the printing of film negatives.

More spec fically, the object of the invention is to provide a construction of this character which is particularly adapted for the printing of film negatives in which the separate pictures have not been cut apart.

And a further object is to provide a device of this character which is adjustable so that negatives of any size within a certain range may be printed, the device having a large range of adjustment.

A further object in this connection is to provide a printing frame which will print negatives of any size within a certain range and in which the print will have a white border surrounding the printed portion of the picture, this white border being secured without the necessity of any mask.

A further object is to provide a machine of this character which will handle and secure proper prints from negatives which are warped or curled, and more specifically provide a machine which will flatten the warped or curled negative and hold it in proper position without the necessity of adjusting or flattening this curled negative while the paper is being put in place.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a perspective view of a printing frame constructed in accordance with my invention, the back or cover being shown as lifted;

Fig. 2 is a sectional view through the frames A and B and extending from front to rear;

Specification of Letters Patent.

.iatented Dec. 28, 1920.

Serial No. 332,951.

Fig. 3 i a transverse sectional view on the line 3-3 of Fig. 2;

Fig. 4 is a perspective view of the means for locking the clamp 24:;

F 5 is a plan view of the frame B;

Fig. 6 is a fragmentary side elevation of one side bar of frame A;

Referring to these drawings, it will be seen that I provide what I may term a main frame, designated generally A, and a slidable negative supporting frame, designated generally B. The frame A includes two longitudinaliy extending side members 10 and a transversely extending cross member 11. One of the side members 10 is longitudinally slotted, as at 12, this slot extending from the end of the side member remote from the cross war 11 toward said cross bar 11 to about the middle of the frame. The opposite side member 10 has only a relatively short slot 12 and the remainder of the upper portion of the side member is cut away so as to leave simply a support 10 extending beneath the frame B. The extremity of this supporting member 10 is formed with a rotatable catch 13, while pivoted to the extremity of the upper wall of slot 12 of member 10 is a catch 14.

The frame B rectangular in form and .1213 longitudinal bars 15, and the end bars 16 which extend upward above the longitudinal bars in a manner which will be obvious from the drawings. The bars 15 and 16 are rabbeted or otherwise formed, as at 17, to provide a seatfora sheet of glass 18. This sheet of glass is partially covered by a sheet of opaque material 19 as, for instance, black paper, paint or any other suitable material, this opaque portion of the sheet 18 being formed to extend across one end of the sheet and along one side of the sheet. The width of the frame B is equal to the depth of the slot 12 se that when the frame is in place, it is disposed entirely within the slot 12 and extends into the slot 12 and rests upon the member 10 in a manner which will be obvious from Fig. 1. When in place, it is held by the catches 13 and 14. This frame is slidable transversely in the slots 12 and 12 The side bars 10 of the main frame A have, their rear ends, the inwardly projecting, metallic strips 26, these side bars on their inner faces being rabbeted below the strips, as at 21, rearward of the slots 12 and 12. The side bars and end bars are formed with inwardly extending ledges 22 whose upper faces are flush with the upper face of the rear longitudinal bar 15 of frame B. Disposed within the frame A for removal therefrom and adjustment thereon is the slide 23. Hinged to this slide is an L- shaped clamp 24 which is hinged to the slide, as at 25. Attached to the outer faces of the clamp 24: is a metallic strip, angular in cross section, so as to provide an outwardly projecting flange 27. In order to hold this clamp down in its operative position, I provide on the slide 28 an upwardly projecting-bracket 28 and on the extremity of the clamp 2% an upwardly projecting bracket 29. Pivoted to the bracket 28 is a longitudinally slotted arm 30, and pivoted to the bracket 29 is an arm 31, the extremity of which extends into the slot of the arm 30 and is pivoted thereto, as at 32. he arm 30 is provided with a laterally projecting finger piece33.

it will be obvious now that when the finger piece is depressed, the arms 30 and 31 will he brought into alinement and this will hold the clamp 24 depressed against any raising movement, because the finger piece 33 will extend over the rod or arm 31 and prevent any upward movement of the two sections of the clamp. ll hen, however, tl finger piece 33 is raised, the arms will be brought into angular relation, which will raise the clamp 2 This clamp 24, and speciiically the flange 2?, is designed for the purpose of clamping a film down tightly upon the glass plate 18.

For the purpose of holding a sheet of printing paper against the negative, I provide the sectional lid or cover formed in two parts 34 and 35. The part 34 is hinged by strap hinges 86 to the slide 23 and the part 35 is hinged to the part by hinges37 so that the part 35 will break upwardly independent of the part 34, but the parts and 35 together mav be moved bodily upward by means of the hinges 36. A handle may be applied to the part 3% whereby the two sections of the lid or cot may be raised or lowered together. and the handle may be also applied to the section whereby it may be independe tly raised if desired. The inner face of the sections 34: and 35 are preferably lined wit felt.

For the purpose of holding the slide 23 in adjusted positions within the frame I provide a transversely extending clamping rod 38 which is rotatably mounted upon the upper face of the slide and which is cranked at its ends, as at 39, and provided with a radially extending handle 40. lVhen this handle is rotated in one direction and down against the slide, the cranked portion 39 of the clamping rod will be turned so as to bear upward against-the inner facesof the strips 26 thus forcing the slide down against the seat 22 in the frame A and holding it firmly in position wherever it is adjusted. When the handle 40 is turned upward, the clamp will be released and then the slide with its back sections and 35 may be shi'lt'ted to any desired position within the frame A.

In the use of this device, the frame B is shifted transversely in the frame A so that t 1c exposed transparent portion of the glass plate 18 will be slightly less than the length of the negative or less than the length of a single picture in a strip of negatives. Then the slide 23 is adjusted in the frame 1%. that when the clamp 24 1: is turned down, the flange 27 will overlap one longitudinal edge and one end edge of the negative. It will be obvious now thas that portion of the glass 18 which is exposec and which is transpan ent will be slightly less tian the size of the negative. The clamp 24- is then raised and the negative disposed in place upon the plate 18. lf a strip of negatives are to be printed, then the end of the strip is forced throu h the slot 12 and carried beneath the clamp. Then the clamp is turned downward. thus flattening the negative and holding it firmly in place upon the glass 18. The printing paper is then disposed upon the face of the negative, it being centered by engagement against the right angular aces of the clainp 24- and resting upon the flange 27 and then the back sections 3-1 and 35 are brought downward and held down hv hand or other suitable means until the picture is printed. As many prints are made as desired. and then the clamp is released and a new negative disposed in place and the printing is continued.

l Vith this device. negatives of different sizes may be printed very quickly by a very simple adjustment, or a series of negatives of the s .ne size mav be readily printed after one adjustment. Each of these prints will have a white border about 1 of an inch wide, the flange 27 acting as a mask for two sides of the negative, while the opaque portion 19 acts as a mask. for the other two sides of the negative. It will be seen that lodak films of any length can be printed without first cutting apart by placing the end of the lm through the slot 12 and simply feeding the film forward. Flo matter how curly or warped the film negative n ay be, it will be flattened down against the glass sheet and held firmly in position by the lm clamp 24.: with its flange 27. course, it is obvious that this printing frame may be made in various sizes and have either a reiae tivelv small range of adjustment or a rela tively large range of adjustment as desired.

While I have illustrated certain details of construction and ar angement of parts I do wish to be limited to these, as it is obvious that many modifications might be made in these details withoutdeparting from the spirit of the invention.

I claim l. A photographic printing frame in cluding a rectangular frame supporting glass sheet, the glass sheet having an opaque portion extending across one end thereof and longitudinally along one side thereof to define a rectangular, transparent portion, a second frame upon which the first frame is transversely adjustable, a slide mounted on the second frame for adjustment thereon at right angles to the direction of movement of the first named frame, an L-shaped clamp hinged to said slide for movement toward and away from the plane of the glass sheet, and a sectional back hinged to the slide and filling the space defined by the L shaped clamp and movable toward or away from the plane of the glass.

2. A photographic printing frame inoluding a rectangular frame supporting a glass sheet, the glass sheet having an opaque portion extending across one end thereof and longitudinally along one side thereof to define a rectangular, transparent portion, a second frame through which the first frame is transversely adjustable, a slide mounted on the second frame for adjustment th reon at right angles to the direction of movement of the first named frame, an L-shaped clamp hinged to said slide for movement toward and away from the plane of the glass sheet, a thin flange projecting outward from the L-shaped clamp and bordering the space defined by said clamp, and a sectional back hinged to the slide for movement toward and away from the plane of the glass and adapted to fill the space defined by said clamp and to rest against said flanges of the clamp.

3. A photographic printing frame including a rectangular frame supporting a glass sheet, the glass sheet having an opaque portion extending across one end thereof and longitudinally along one side thereof to define a rectangular, transparent portion, a second frame through which the first frame is transversely adjustable, a slide mounted on the second frame for adjust ment thereon at right angles to the direction of movement of the first named frame, an L-shaped clamp hinged to said slide for movement toward and away from the plane of the glass sheet, a thin flange projecting outward from the L-shaped clamp and bordering the space defined by said clamp, a sectional back hinged to the slide for movement toward and away from the plane of the glass and adapted to fill the space defined by said clamp and to rest against said flanges of the clamp, means for locking the slide in adjusted positions, and

means for locking the clamp in a depressed position.

4;. A photographic printing frame including a rectangular frame supporting a glass sh et, the glass sheet having an opaque portion extending across one end thereof and longitudinally along one side thereof to define a rectangular, transparent portion, a second frame through which the first frame transversely adjustable, a slide mounted on the second frame for adjustment thereon at right angles to the direc tion of movement of the first named frame, an L-shaped clamp hinged to said slide for movement toward and away from the piane of the glass sheet, a thin flange projecting outward from the L-shapcd clamp and bordering the space defined by said clamp, a sectional back hinged to the slide for movement toward and away from the plane of the glass ane adapted to fill the space defined by said clamp and to rest against said. flanges of the clamp, means for locking the slide in adjusted positions, and means for locking the clamp in a depressed position, said last named means including pivotally connected to the back clamp respectively and t each other, one of said arms projecting beyond the other arm and having a laterally extending thumb piec extending over the plane of the other arm A photographic printing frame including a rectangular frame supporting a glass sheet, the glass sheet having an opaque portion extending across one end thereof and longitudinally along one side thereof to define a rectangular, transparent portion, a second frame through which the first frame is transversely adjustable, a slide mounted on the second frame for adjustment thereon at right angles to the direction of movement of the first named frame, an L-shaped clamp hinged to said slide for movement toward and away from the plane of the glass sheet, a thin flange projecting outward from the L-shaped clamp and bordering the space defined by said clamp, a sectional back hinged to the slide for movement toward and away from the plane of the glass and adapted to fill the space defined by said clamp and to rest against said flanges of the clamp, means for locking the slide in adjusted positions, and means for locking the clamp in a depressed position, the first named clamp comprising a transversely extending rotatable rod cranked at its ends and having a handle, the second named frame having inwardly extending, parallel flanges on its side beneath which said crankshaped portions of the rod are adapted to engage.

6. A photographic printing frame including a rectangular frame rabbeted to receive a glass sheet, a sheet of glass disposed in said frame and having an opaque portion entending transversely across the glass and longitudinally of the glass, at second frame having a cross bar, two parallel side por tions, both of said side portions being slotted to receive the first named frame, the first named frame having a length greater than the width of the second named frame, whereby the first named frame may he longitudinally adjusted within the second named frame, a slide mounted in the second named frame for adjustment at right angles to the direction of adjustment of the first named frame, an L-shaped film clamp hinged to said slide and having its inner margins formed with inwardly projecting, relatively thin flanges, r eans for holding said L- shaoed clamp depressed against the face of the glass or in a raised position, and a back hinged to the slide and adapted to fill the space defined by said clamp and rest upon said flanges. V

7. A photographic printing frame includectangular frame supporting a glass sheet, a econd frame in which the first l all le is transversely adjustable, a slide ounted on the second f 'ame for adjustment hereon right angles to the movement of ie first named frame, a clamp hingcdly mounted upon the slide for movement into position against the glass sheet, and a back section hinged to the slide for movement toward and away from the plane of the glass.

8. A photographic printing frame including a rectangular frame supporting a glass sheet, a second frame in which the first named frame is transversely adjustable, a slide mounted on the second named frame for adjustment thereon at right angles to ing a r the movement of the first named frame, a film clamp hinged to the slide for movement toward and away from the plane of the glass and including a relatively thin, inwardly projecting flange, and a back section hinged to the slide for movement toward and away from the plane of the glass and fitting within the film clamp and adapted to rest upon the upper face of said flange.

9. A photographic printing frame including a transparent negative support, a hing edly mounted film clamp having a relatively thin film engaging flange, the clamp being adjustable as a whole in a plane parallel to the face of the negative support and being oscillatably shiftable toward and from the transparent support, and a hingedly supported hack section adapted to engage the paper to be printed and fitting within the film clamp and adapted to rest upon the upper face of the flange thereof.

10. A photographic printing frame including a rectangular frame having its side slotted, a second rectangular frame supporting a glass sheet and disposed within the slots of the first named frame and transversely adjustable therethrou -h, a slide carried on the first named frame 1'01 adjustment thereon at right angles to the line of movement of the second named frame and having a hinged section angular in plan and having a film clamping flange on its edge face, and a back section hinged to the slide for movement toward and away from the plane of the glass and fitting within said angular hinged section when closed.

In testimony whereof I hereunto alfix my signature.

ALBERT K. GULHAUG.

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