US2357366A - Ink fountain for disk ruling machines - Google Patents

Description

sept. s,

G. J. R'ENz INK FOUNTAIN FOR DISK RULING-MACHINES Filed Feb. 12,; 194;

` INVENT OR. ,M/ME J. /E/vz iBY `// a5 34 sa a7 y AWM/Mrs Patented Sept. 5, 1944 INK FOUNTAIN FOR DISK RULING MACHINES George J. Renz, Middle Village, N. Y. Application February 12, 1941,v Serial No. 378,689

('Cl. lill-364) 2 Claims.

This invention relates to ink fountains of the type which include a roller and wiper coacting therewith and while not necessarily restricted thereto, the same is primarily designed for use in connection with disk ruling machines. The invention is particularly directed to an improved wiper construction by virtue of which the feeding of the ink may be more precisely controlled or regulated so that the lines being ruled will possessV a high degree of uniformity.

As a further feature, the invention comprehends in an ink fountain, a wiper blade which is so constructed, arranged and mounted asvto provide for a multiple'of adjustments to thereby compensate for'variations inthe diameters'of 15 the inking rollers, to vary the amount of ink being fed and to permit of shifting of the blade axially with reference to the roller to avoidundue wear on 4the blade especially where the surface of the 20 roller has been cut or damaged.

The invention further provides a wiper blade mounting which permits of the disposal of the blade in an inactive position out of c-ontact with the surface of the roller when the ink fountain isnot in use.

With the above and other objects in view, the invention is set forth in greater detail in the following specication and illustrated in the accompanying drawing, in which:

Fig. 1 is a vertical sectional view through the fountain taken approximately on the' line I-I of Fig. 2. y 1

Fig. 2 is a -top plan View of the ink fountain.

Fig. 3 is a vertical sectional view taken ap- 3f proximately on Ithe line` 3 3 of Fig. 2.

Fig. 4 is a vertical sectional view through a fountain illustrating a modification of the invention.

' Fig. 5 is a fragmentary top plan view thereof.

Referring to the drawing and more particularly to the form of the invention illustrated in Figs. 1, 2 and 3, I!) designates an inking fountain which is in the form of a rectangular open top receptacle having a bottom wall I I and mar- 45 carried by depending brackets I8. Each bracket 50 I8 is formed with a base I9 which is adjustably supported by a wear plate 29 secured to the bottom wall II of the fountain and retained in adjustment by means of set screws 2 I.

In this form of the invention, the wiper blade 55 25 which preferably consists of an elongated rectangular strip of rubber is detachably secured by a clamping strip 26 to a holder bar 21. The blade holder lbar 21 is provided adjacent each of its opposite ends with a bore 28 and said bores freely receive therethrough a pair of threaded arms 29 provided at their lower ends with enlarged knuckles 30 having transverse bearing openings 3l. The bearing openings are disposed in axial 0 alignment with each other and receive trunnions 32 which project laterally from bearing blocks 33 resting upon and supported by the bottom wall IIV of the ink fountain. The bearing blocks are provided with horizontal threaded openings 34 which are engaged by threaded stems 35 extending through therear wall I34 of the ink fountain and swiveled in bearing bosses 36 protruding rearwardly from the wall I 3.

The rear outer ends of the stems have secured thereto knurled manipulating knobs 3l by means of which the bearing blocks 33 are slidably adjustable upon the bottom of the fountain for movement towards and away from the feed roller I5. 29 which protrude beyond the upper edge of the blade vholder bar 21 are engaged by knurled cylindrical nuts 38 formed with reduced tubular Shanks 39 having enlarged heads 40 engaging grooved portions 4I which communicate with the bores 28.

From this construct/ion and arrangement, it is apparent that turning of the nuts 38 Vin opposite directions will effect raising and lowering movement of the blade holder 21 and consequent raising and lowering adjustment of the wiper blade 25 in its own plane Yto vary the inclination of the blade which extends in an upwardly inclined relation to the roller with the upper edge thereof engaging the roller periphery. The blade is also mounted for swinging movement on the trunnions 32 as a fulcrum from the active position engaging .the roller, as shown, to an inactive position when it is swung rearwardly away from the roller and towards the rear wall I 3, The adjustment of the blade by means of the nuts 38 to vary the inclination of the same controls or regulates the quantity of ink being fed by the roller and the precision with which the adjustment is made insures a uniform feed of ink throughout the length of the roller 4which is highly desirable where the roller is engaging the disks of a disk ruling machine as this results in uniformity of the lines being ruled. An increase in the inclination of the blade, that is, an upward Theupper portions of the threaded arms movement thereof, will increase the quantity of ink fed and conversely a decrease in the inclination will decrease the quantity of ink fed by the roller. By individually adjusting the bearing blocks 33 towards and away from the roller, the edge of the wiper blade 25 may be accurately disposed in parallel relation to the roller so as to insure uniform feeding of the ink by the roller to the ruling disks to thereby obtain lines possessing a high degree of uniformity. This adjustment of the blade also compensates for variations in the sizes of the feed rollers being used. It will be further observed that the bearing knuckles 30 have a limited movement axially of the trunnions 32 which permits of the shifting of the blade axially with reference to the roller in its own plane thereby avoiding undue wear on localized portions of the blade which occurs where the surface of the feed roller has become cut or damaged.

In the modified form of the invention illustrated in Figs. 4 and 5 of the drawing, the bearing blocks 5I] are fixed in the ink fountain I 0 and in this instance the base I9 of each roller bracket I8 is formed with a threaded boss 5I which is engaged by the threaded terminal 52 of a stem 53 swiveled as at 54 in the bearing block and provided at its rear end with a-knurled manipulating knob 55 by means of which the feed roller I5 is adjusted towards and away from the Wiper blade 25. In other respects the invention is identical with the previous form. In the modification, the relative adjustment of the wiper blade and roller towards and away from each other is accomplished by turning the manipulating knobs 55 so as to compensate for variations in the sizes or diameters of the feed rollers and effect the proper alignment of the wiper blade with the feed roller.

What is claimed is:

1. In an ink fountain for disk ruling machines, an elongated open top ink reservoir, a feed roller, bearing means mounting said feed roller for rotation on a horizontal axis extending longitudinally of the reservoir with the lower portion of the roller immersed in the ink, a wiper blade and means for mounting said blade to extend upward at an inclination with the upper edge thereof having free gravitational engagement with the feed roller above its axis of rotation, said blade mounting means comprising a clamping bar engaged with the lower edge of the wiper blade and having a bore adjacent to each of its opposite ends extending therethrough in a direction parallel to the plane of the blade, bearing blocks supported in longitudinally spaced relation within trolling the volume vof the ink delivered by the feed roller and for permitting lateral shifting of the wiper with reference to the feed roller to effect even wear thereon, and means for independently adjusting with reference to each other the opposite ends of the feed roller and the respective bearing blocks so as to obtain longitudinal alignment of the edge of the wiper blade with the periphery of the feed roller to insure uniform feeding of the ink throughout the length of the feed roller.

2. In an vink fountain for disk ruling machines, an elongated open top ink reservoir, a cylindrical feed roller, bearing means mounting said roller for rotation ona horizontal axis extending longitudinally of the reservoir with the lower portion of the roller immersed in the ink, a wiper blade and means for mounting said blade to extend at an upward inclination with the upper edge thereof having free gravitational engagement with the feed roller above its axis of rotation, said blade mounting means comprising a clamping bar engaged with the lower edge of the wiper blade and having a bore adjacent each of its opposite ends extending therethrough in a direction parallel to the plane of the blade, bearing blocks supported in longitudinally spaced relation within the bottom of the reservoir, arms carried by said bearing blocks mounted on aligned horizontal axes for swinging movement and having threaded terminals freely extending through the bores, nuts swivelly carried by said clamping bar and engaging the threaded terminals of the arms for adjusting the wiper blade in its own plane so as to vary the inclination thereof to control the volumeof ink delivered by the feed roller, and means for effecting independent-adjustments of the opposite ends of the feed roller and the respective bearing blocks toward and away from each other to effect longitudinal alignment of the edge of the wiper blade with the periphery of the feed roller so as to insure uniform feeding of the ink thereby throughout the length thereof.

GEORGE J. RENZ.

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