US788524A - Inking mechanism. - Google Patents

Description

No. 788,524. n PATLNTEDv MAY 2, 1905.

D. W. GUSTER.

INKING MEGHANISM.

APPLIOMIOX FILED APn.2o,19o4.

s SHEETS-'SHEET 1.

4 WITNESSE NVENTO lNo. 788,524. V PATENTE; MAY z, 1905. D. W. UUSTBR.

INKING MEGHANISM. v

c APPLICATION PILEDAPB.20,1904.

. 3 SHEETS-SHEET 2.

INVENTOR :j Attorney PATENTED MAY 2, 1905.

D. W. GUSTBR.

INKING MEGHANISM.

APPLICATION FILED APR. 20,1904.

3 SHEETS-SHEET 3.

\ 22 NVENTOR l Attorney MNESSEW 7 A Clare the following to be a full, clear, and

s to provide improvements of this'character tudinally to receive the ends of a paper tym- UNITED STATES Patented May 2, 1905.

PATENT OFFICEC INKING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 788,524, dated May 2, 1905. Application tiled April 20, 1904. Serial No. 204.030.

'o all whom, t may concern/:

Be it known that I, DWIGHT W. CUsTER, a resident of Parkersburg, in the county of Wood and State of West Virginia, have invented certain new and useful Improvements in Inking Mechanism; and I do hereby de-v exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improved inking mechanism, the object of the invention being which will uniformly feed smooth ink to a printing-cylinder; and it consists in certain no vel features of construction and 'combinations and arrangements of parts, as will be more fully hereinafter described, and pointe-d out in the claims.

In the accompanying drawings, Figure 1 is a view in longitudinal section, illustrating my improvements. Fig. 2 is a View in elevation of the inking mechanism. Fig. 3 is an enlarged View, partly in section,illustrating the printing and inking mechanism. Fig. 4 is a broken plan view of Fig. 3. Fig. 5 is a view taken at right angles to Fig. 4. Fig. 6 is a View in cross-section through the ink-fountain, and Fig. 7 is a view in longitudinal section of the same.

1 represents the main frame of the machine, provided in its lower forward portion with bearings for the paper-supply roll 2. The paper from roll 2 passes up and over aroll 3, where it is ruled longitudinally on one side by a series of pens 4, supplied with ink by a suitable reservoir 5. The paper then passes forward around another roll, and the opposite side of the paper is then ruled by a series of pens 7, supplied with ink from a reservoir 8, and from this roll 6 the paper passes rearward between the printing-cylinder 9 and platen or impression cylinder 10, which will now be 'described in detail. These cylinders 9 and 10 are supported in vertical standards 16, and the platen-cylinder 10 is slit longipan or other cover passed around the cylinder and having its ends located in a slotted rod 11 in cylinder 1() and tightened on the l cylinder by turning the rod, as will be readily understood. This construction permits the ready removal of a -worn paper cover and the substitution of a new one on the platen-cylinder 10.

The printing cylinder or roll 9 is made with a series of longitudinal grooves to receive strips 12, having enlarged beveled outer portions, as shown, to clamp the printing-plates 13 onto the cylinder, and by providing a large 60 number of these grooves plates of various sizes can be secured on the cylinder. The strips 12 may be secured in the grooves by screws or otherwise, as preferred. The construction of the printing-cylinder is shown most clearly in Fig; 4.

The printing and platen cylinders 9 and 10 have intermeshing gears 14 and 15, respectively, on both ends of their supportingshafts, and motion is transmitted to them in any desired manner.

At the upper end of the standards 16, above referred to, my improved printing-ink fountain 17 is located and, as seen most clearly in Figs. 6 and 7, comprises end plates 18, con- 75 nected by a concave base 19 and by a bar 20 at its rear end. This bar 20 has a beveled lower face, against'which a spring-plate 21 is secured and forms the fountain-bottom. In a longitudinal inclined groove 22 in base 19 80 a Wedge-bar 23 is mounted to slide and is operated by a screw 24 at lone end'to move the wedge-bar longitudinally and force the forward end of bottom platel 21 against an inksupply roller 25, secured on ashaft 26,mount 85 ed in the forward end ofthe fountain, and thereby regulate the amoiint of ink the roller will take up in its rotation. On one protruding end of this shaft 26 a ratchet-wheel 27 is secured, and an arm 30 is fulcrumed at 9o one end on the shaft and has a longitudinal slot 28 in its freeend, and a spring-pressed dog 29 is carried by arm 30 in engagement with ratchet-wheel 27. Secured to or integral with the gear 14 is a hollow hub 31,hav 95 ing an internal cam-face 32. A link 33, slotted at one end to receive and move on the printing-cylinder shaft, has a roller 34 on one side against the internal cam-face of hub 31 and is connected to arm 30 by means of a 10 bolt passed through the slot 28 therein and secured by a set-nut 35. It will thus be seen that as gear 14 revolves the cam-hub 31 will intermittently move link 33 and arm 30, causing dog 29 to force ratchet-wheel 27 partially around, and thereby turn roller 25 a distance desired. A coiled spring 36 connects link 33 with the standard 16 and returns the link and arm 30 to their normal elevated position when released by the flat or cam portion of the hub.

To the upper ends of standards 16 at one edge brackets 37 are pivotally secured by bolts 38, and set-screws 39 project through flanges 40 at the upper ends of standards 16 and bear against shoulders 41'on brackets 37 to exactly position them. The'brackets have alined pockets 42 to receive bearing-blocks n 43, adjusted therein by set-screws 44 and receiving the shaft 45, carrying an inking-roll 46 for supplying ink directly to the printingcylinder. The brackets 37 also provide alined bearings for a longitudinally-movable shaft 47, on which a hollow ink-distributing roll 48 is secured and adapted to distributel the ink evenly on roll 46, as will more fully hereinafter appear.

Ink is conveyed from the supply-roll 25 to distributing-roll 48 by a conveyer-roll 49. This roll 49 is carried by bell-crank levers 50, fulcrumed between their end-s on standards '16 and having their lower members made in two sections hinged together and provided with springs 51 to normally hold them straight, but permit of suliicient elasticity to prevent undue wear and damage. The lower ends of these levers 5() carry rollers 52,which bear against the face of cams 53, secured on the printing-cylinder shaft, or against the ends of the cylinder and are moved by said cams to throw the conveyer-roll 49 from contact with supply-roller 25 over against distributing-roll 48, and coiled springs 54 connect lugs 55 on the levers 50 with standards 16, maintaining' the rollers 52 always against the cams 53, and thereby returning roll 49 against supply-roll 25 when the cams turn to a position to permit such return.

On one end of the shaft 47, carrying distributing-roll 48, a gear 55 is secured and is made with beveled flanges 56 at both sides, as clearly shown inM Figs. 4 and 5. This gear 55 is in mesh with what I term a cam-gear 57, as it performs both the functions of a cam and gear, and is supported upon a stub projecting from the standard 16 and receives its rotary motion from a large gear 58 on the printing-cylinder shaft-V 59. It will be seen that as camgear 57 revolves between the anges 56 of gear 55 it not only revolves distributing-roll 48, but also moves the same longitudinally back and forth. This vmovement of the rolll serves to smear the ink on roll 46 and evenly distribute the same, breaking up any lumpy portions of the ink and smearing it evenly on the roll.

Various slight changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence I would have it understood that I do not restrict 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 my invention.

Having fully described my invention, what I claim as new, and desire to secure by-Letters Patent, is`

1. The combination with a fixed frame, a printing-cylinder and an ink-fountain mounted on the fixed frame, of a bracket attached to the frame, means for adjusting said bracket, a distributing-roll mounted in said bracket, boxes adjustably mounted in said bracket, a feed-roll mounted in said adjustable boxes, a bell-crank lever pivoted to the frame, a conveyer-roller carried by said lever, a cam rotatable with the printing-cylinder for oscillating said bell-crank lever, and a supply-roller mounted 'in the outlet end of the ink-fountain on the fixed frame.

2. The combination with a frame, a platencylinder supported in said frame and an inkfountain above the cylinder, of a supplyroller in said fountain, a feeding-roller against the cylinder, a distributing-roll shaft, a-distributing-roller thereon against the feedingroller, a movable conveying-roller for conveying the ink from the supply to the distributing-roller, a gear on the distributingroller shaft having annular fianges at both edges, a gear for driving the printing-cylinder, and a cam-gear meshing with and receiving motion from the gear which drives the printing-cylinder, said cam-gear meshing with the gear on the distributing-roller and serving to simultaneously revolve and reciprocate the same.

3. The combination with an ink-fountain having a flexible .bottom fixed at one edge and free at its opposite edge, of an ink-supply roller mounted over the free edge of said flexible bottom, an elongated wedge mounted in the frame of the fountain under the flexible bottom and engaging the latter in close proximity to its free edge to press said free edge uniformly, throughout its full length, against the supply-roller, and means for adjusting said wedge longitudinally.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

DWIGHT WV. CUSTER. Witnesses:

L. H. MCDERMOTT, M. R. CUSTER.

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