US1920419A - Printing machine - Google Patents

Description

W. K. MILLER PRINTING MACHINE Aug. 1, 1933.

Filed Dec. 5, 1931 Patented Aug. 1, 1933 1 UNITED STATES PATENT OFFICE PRINTING MACHINE Application December 5, 1931. Serial No. 579,179

3 Claims.

The present; invention relates to printing machines, and more in particular to novel ink feeding devices therefor.

Among the objects of the present invention is to provide a novel ink feeding device for printing machines wherein suitable means is provided for feeding a plurality of various colored inks to the printing plates of the printing machine.

The present inventionincludes the idea of pro- 1 viding a simple, compact, and neatly arranged ink feeding device for feeding a plurality of colored inks to the printing plates of a printing machine, and in such a manner as to effectively segregate these various colors from 35 one another and to transfer each of them in an unadulterated condition to these printing plates.

Another object within the purview of the present invention is to provide novel means adapted to be associated with an ink feeding roll and ink receptacle in a printing machine, such means being used for providing a plurality of compartments or chambers in the receptacle for receiving inks of various colors and to prevent passage of these inks from one compartment or chamber to another or prevent admixture of these inks after the same have,been picked up by the feeding roll during the transfer operation.

' Still another object of the present invention is to provide novel partition means for providing a plurality of compartments in the ink receptacle of an ink feeding device, this partition member or means including or having associated therewith suitable material adapted to conform to the contour of the ink feeding roll and ink receptacle for preventing passage of ink between compartments or from one portion of the roll to another.

Other objects, features, capabilities and advantages. are comprehended by the invention, as will later appear and as are inherently possessed thereby.

Referring to the drawing;

Figure 1 is a fragmentary view in vertical cross section of, an ink feeding device made in accordance with the present invention taken in a plane represented by line 11 of Figure 2 of the drawing;

Figure 2 is a fragmentary view in vertical cross section taken in a plane represented by line 2-2 of Figure 1 of the drawing;

Figure 3 is a detached view in side elevation of the partition means shown in Figure 1 of the drawing with a part thereof removed to disclose the construction thereof more in detail;

Figure 4 is a view in cross section taken in a plane represented by line 44 of Figure 3 of the drawing; and

Figure 5 is a view in cross section taken in a plane represented by line 5--5 of Figure 3 of the drawing.

' Referring now more in detail to the drawing, an embodiment of the present invention is disclosed in connection with an ink feeding device 2 used in conjunction with a printing machine (not disclosed) which is particularly adapted for printing matter upon material, such as cellophane, glassine, or some other similar and like diaphanous material.

The ink feeding device 2 is shown as comprising an ink receptacle, generally designated as 4, and an ink feeding roll 6, the receptacle 4 being secured, as by means of the bolts 8 to a bracket or support 10, which in turn is secured by means of the bolts 12 to frame members 14, these frame members 14 being movable or otherwise operatively associated with the printing mechanism of the printing machine. Secured adjacent each end of the bracket or support 10, as by means of the bolts 16, are standards or bearings 18 adapted to provide journaling means for the shaft 20 of the feeding roll 6, a pinion 22 being suitably secured to an outer end of the shaft 20 for driving the ink feeding roll 6 for the transfer of ink from the receptacle 4to a transfer roll (not disclosed) The present invention is primarily concerned with the idea of providing novel means for forming a plurality of compartments for retaining ink of various colors, whereby the ink is effectively retained and prevented from flowing or moving from one compartment to the other. The receptacle 4 includes a lower support or bracket 24 to which is secured a flexible plate 26, as by means of rivets 28, or the like, this flexible plate 26 being disposed in a sloping position and having an overhanging end part 30 immediately adjacent the ink feeding roll 6, this flexible end 30 being adapted to be adjusted in relation to the periphery of the ink feeding roll 6 by means of a plurality'of thumb screws 32, or the like.

'The ink receptacle 4 is formed with a plurality of compartments by means of one or more partition members, generally designated as 34. This partition member 34 comprises the plates 36 and 38 of a shape corresponding substantially to that shown in the figures, the plate 38 having a spacing member 40 secured thereto, as by means of the rivets 42. .The spacing member 40 is of a form and shape as shown in Figure 3 of the no drawings, and has its forward and lower edges spaced inwardly from the margins of the plates 36 and 38, and around the forward and lower edges of the spacing member 40 is positioned a batt or mat of fibrous material 44, this fibrous material being preferably of some such material as felt, or the like. 44 is suitably held in place by a plurality of spaced prongs or barbs 46 carried adjacent the forward and lower marginal edges of the member 38. For convenience in replacing or readjusting the batt 44 of fibrous material, the plate 36 is removably secured, as by means of the set screws 48, to the spacing'member 40.

As clearly shown in Figure 1 of the drawing, this partition member 34 is supported upon the plate 26 and is adapted to move downwardly over the sloping surface thereof into a petition whereby the batt of fibrous material 44 may conform to the contour of the outer surface of the ink feeding roll at that point, as likewise conform to the contour of the plate 26. In order to hold this partition means in place, the spacing member 40 is provided with a depressed or cut-out portion 50 forming a recess between the walls 36 and 38 for receiving the forward end of a positioning arm 52. This positioning arm 52 is formed with a split hub 54 and may be secured in fixed relation with the partition member 34 and a shaft 56 by means of a bolt 58, the shaft 56 being received within the hub 54. The shaft 56 is provided with squared end portions 60 received in sockets 62 of brackets 64 secured to the support or bracket 24, as by means of the bolts 66. It is of course understood that one or any number of these partition members may be provided for forming a plurality of compartments within the receptacle 4.

From the above disclosure, it will be clearly apparent that the partition member 34 is effectively held in a position whereby the batt of fibrous material 44 will conform to the contour of the ink feeding roll and plate 26 for effec tively preventing flow of ink from one compartment to the other, as likewise admixture of these This batt of fibrous material inks, which may be of different colors, upon the surface of the ink feeding roll 6. The batt of fibrous material 44 contacting with the surface of the ink feeding roll 6 further acts in a wiping capacity to segregate the portions of the various colored inks adhering to the surface of the ink feedingv roll.

While I have herein described and upon the drawing shown an illustrative embodiment of the invention, it is to be understood that the invention is not limited thereto but may comprehend other constructions, arrangements of parts, details and features without departing from the spirit of the invention.

I claim:

1. In a printing machine, the combination of an ink feeding roll, an ink receptacle, a partition for said receptacle, a batt of fibrous material carried by said partition and adapted to conform to the contour of said roll and receptacle for preventing passage of ink from one part of said roll and receptacle to another, said partition hav ing a recess portion, and an arm received in said recess for holding said partition in position.

2. A partition member for an ink feeding device, comprising a plurality of wall members, a spacing element therebetween, and a batt of fibrous material between said wall members and extending beyond certain of the edges thereof, said spacing element having a depressed portion providing a recess for receiving a partition positioning arm.

3. A partition member for an ink feeding device, comprising a plurality of wall members, a spacing element secured to one of said wall mem- 110 bers, a plurality of barbs secured in spaced relation to said wall member, means for removably securing the other of said walls to said spacing member, and a batt of fibrous material carried between said wall members and secured in place 115 by said barbs, said spacing member having a depressed portion providing a recess for receiving WALTER K. MILLER.

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