US1570498A - Film-printing machine - Google Patents

Description

Jam 19', 1926.

G MACHINE Filed NOV. 13. 1924 FZLM PRINTIN 2 Sheets-Sheet 1 7 INVENTOB, (fl/005 ,MmWnZo/L A'ITORNEYS giiiBSSES I J. KALMANOVITCH mm PRINTING MACHINE Filed Nov. 15. 1924 2 Sheets-Sheet 2 WITNESSES 2 INVENTOR jar/e05 IaZmnOnZk ATTORNEYS Patented Jan. 19, 1926.

rsieaes JACOB KALMANOVITCH, OF BROOKLYN, NEW YORK.

FILM-PRINTING MACHINE.

Application filed November 13, 1924. Serial No. 7493740.

To all whom it may concern:

Be it known that I, JACOB KALMANovrroH, a citizen of Russia, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved F ilm-Printing Machine, of which the following is a full, clear, and exact description.

This invention relates to film printing machines, an object of the invention being to provide a machine which facilitates the simultaneous printing of a large number of films.

While I refer to my machine as a film printing machine it is obvious that it might be employed for printing from plates, but itsprimary purpose is to enable a roll or strip of films to be simultaneously printed thus resulting in a saving of time and labor and giving uniformity of results.

A further objectis to provide a machine of this character which may be adjusted so as to accommodate any desired width of film strip, any desired length of film strip, and give any desired time exposure. With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts which will be more fully hereinafter described and pointed out in the claims.

In. the accompanying drawings 'Figure 1 is a perspective view of my improved machine;

Figure 2 is a view mainly in plan but partially in section and partly broken away for purposes of clearness;

Figure 3 is a view in vertical transverse section through the machine, showing the same in operative position;

- v Figure 4-. is a fragmentary view in section. illustrating the manner of adjusting the rail holder;

Figure 5 is a perspective view of the press er bar;

Figure 6 is a perspective view of my improved mask;

Figure 7 is a perspective view showing a glass plate which may be used in connection G with the. mask Figure 8 is a view illustrating a simple form of electric diagram showing how the lights in the mach ne can be controlled.

My improved printing machine comprises a box or casing 1, preferably of general oblong shape, and supporting on its bottom 2 any desired number of red lamps 3 and white lamps l. The box or casing 1 has an open top and ust below this open top an internal ledge 5 is provided on which a frosted or other translucent plate 6 ren'zovably mounted.

A frame '7 is hingedly connected at its rear portion to the rear wall of casing 1, as indicated at 8, and is formed with an internal flange or ledge 9 on which a glass or other clear plate 10 is supported. frame 7 and plate 10 constitute a cover for the top of easing 1.

On a front bar 11 of frame 7 I rigidly and permanently secure a rail bar 12. This rail bar is formed at its inner edge with a longitudinal groove 13, and a corresponding rail bar 14 is spaced therefrom and has a groove 15 in its forward edge so that in these grooved edges I locate and support my improved mask 16, film 17 and the sensitized paper 18, as will more 'fully hereinafter appear.

The rail 14: is adjustable relative to the fixed rail 12 so as to accommodate any desired width of mask, film and paper, and in order to provide a mounting for this adjustable rail I employ an angle frame 19 having end bars 20 located above the end bars of the frame 7 and having longitudinal slots 21 therein to accommodate bolts 22 projecting upwardly from frame 7 and I locate wing nuts 24 on the bolts for clamping against the frame 19 to secure the same in any desired lateral or transverse adjustment relative to the bar 12.

The frame 7 at its rear has a block 25 fixed thereon and to this block a rectangular presser frame 27 is hingedly connected, as

shown at 28. This presser frame is made with a handle bar 29 located at its center and projecting beyond the frame so as to facilitate the operation thereof.

On the frame 27 I locate a removable presser bar 30 and this presser bar is prcfen ably formed at its ends with enlargements 31 having grooves 32 in their inner faces so that these grooves 32 may receive the side members of the frame 27 so as to prevent the presser bar from displacement when the This presser frame 27 is swung from its rear ward or elevated position, as indicated in Figure 1. It will be noted that by reason of the hinge connection between the presser frame 27 and the block 25 this presser frame may be s'Wung upwardly and rearwardly and held in a convenient more or less vertical position ready for use as required.

The mask 16 above referred to is preferably of clear glass or other similar material having opaque material dividing the mask into a plurality of clear spaces of the same size and shape. This opaque material functions to provide a dark border around the photographs when printed as it excludes the light from the sensitized paper. Of course, the size and shape of the border of the print is regulated by the manner of dispensing the opaque material on the mask.

While, of course, the invention is not limited to any particular electric circuit for controlling the lamps 3 and 4, I have illus trated in Figure 8 a simple form of circuit which is adapted for the purpose. The red lamps '3 are. located in circuit with a manually operated switch 35, which is normally closed while the machine is in operation. The white lights 4- are included in circuit with a push button switch 36. This push button switch 36 is engaged by a button 37 on the handle 29 of presser frame 27 so that when the presser frame is moved to horizontal operative position it functions to move the button 36 to close the circuit to the white lights 4, and when the pressure frame is elevated the circuit to the white lights is automatically opened.

The presser bar 30 above referred to is preferably covered with a strip of felt 39 where it contacts with the back of the sensitized paper 18. The plate 38, indicated in Figure 7, is preferably of glass and of the size of one of the sections'of the mask so that when itis desired a glass can be.

inserted under the mask, as shown in Figure 3.

The operation is as follows:

Assuming the rail 14 to be properly adjusted to give the desired spacing between the same and the rail 12, the mask 16, film strip 17, and sensitized paper 18 are located one upon the othera'nd supported in the grooves 13 and 15 of the rails"12 and 14, respectively, as indicated clearly in Figures 2 and. 3; The presserframe is in elevated position while the mask, filn1. and paper are beinglocatedxinthe'rails 12 and '14. If any of the 'filifis in the strip heed protectionfrom-thealight becauseof adifference. iniexposure of the film, a plate 38, suchnas' indieated'inqFigure' 7 maybe inserted under the mask where this film is to be'ex-posed. This is illustrated in Figure 3.

Theoperator thengrasps thehandle 2.9 and swings the presser frame 27 downwardly to bring the presser bar 30 against the back of the sensitized paper 18. This operation not only insures the flattening and holding smooth of the paper and film on the mask but it also functions to exert pressure on the switch button 36 to close the circuit to the white lights 4 and print upon the sensitized paper. When the desired time of printing is ended, the operator merely raises the presser frame 27 to the position shown in Figure 1 and instantly the white lights are extinguished so that the exposure is ended. He then removes the paper and film and develops the prints in any ordinary way.

If a large number of prints of the same size are to be made it is, of-course, unnecessary to remove the mask and the operation of placing other films and sensitized paper is repeated as often as may be desired.

It will thus be noted that with a machine of this character a strip or length of film containing any desired number of pietures can be simultaneously and quickly printed and uniform results assured.

Various slight changes and alterations might be made in the general form of the parts described without departing from my invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. A film printing machine, comprising a casing, having an open top, a sheet of glass supported in the casing adjacent the top thereof, a hinged closure for the top having a glass plate therein, and a bar secured on the closure and having a groove in one face thereof, a frame mounted to move laterally of the closure and adapted to be secured at any desired adjustment, a bar on said frame parallel with the first mentioned bar and having a groove in its face opposed to the grooved face of the bar, said grooved bars adapted to support a film and a mask having a plurality of exposure openings therein, a pressure device adapted to engage the film and mask, and electric lamps in the casing included in circuit with a source of electricity and with means operated by the pressure device for closing the same.

2. A film printing machine, comprising a casing, having an open top, a sheet of glass supported in the casing adjacent the top thereof, a hinged closure for the top having a glass plate therein and a bar cured on the closure and having a groove in one face thereof, a frame mounted. to move laterally of the closure and adapted to be secured at any desired adjustment, a

bar on said frame parallel with the first mentioned bar and having a groove n its openings therein, a pressure device adapted to engage the film and mask, said pressure dev1ce constltutmg a frame lnngedly connected to the closure devlce, a handle bar secured centrally to the pressure device and adapted to project beyond the casing when the apparatus is in operation, and means 10 on said handle bar to close an electric circuit and operate illuminating means Within the casing.

JACOB KADMANOVITCH.

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