US2206269A - Ink feeding device - Google Patents

Description

J. slNKovlTz 2,206,269

[NK FEEDING DEVICE Filed April 1, 1937 4 Sheets-Sheet l J. SINKOVITZ INK FEEDING DEVICE July 2', 1940.

FilQd April 1, 1937 4 Sheets-Sheet 2 y 2, J. SINKOVITZ 2,206,269

INK FEEDING DEVICE Patented July 2, 1940 i4 UNITED STATES PATENT OFFICE p i 2,296,269

INK FEEDING DEVICE Joseph Sinkovitz, Pittsburgh, Pa, assignor to Miller Printing Machinery 00., Pittsburgh, Pa., a corporation of Pennsylvania Application April 1, 1937, Serial No. 134,343 8 Claims. ,(Cl. 101357 My invention pertains to ink feeding devices, such as are employed for supplying ink tothe inking means of a printing press, as, for instance, to the form rollers of a flat bed printing press.

Such ink f eding devices commonly include a number of rollers, some of metal and some of gelatine or other composition, which rotate in contact with one another for the purpose of breaking up thesomewhat uneven deposit of ink as originally received from the fountain and pro ducing a regular and even film of ink for transfer to the form rollers. is stopped for any material period of time, those of the rollers which are made of composition are i liable to become distorted by the creation of flat portions at the places where the composition has remained pressed against the companion roller or rollers. To avoid this, it is common practice for the operator to remove the composition rollers when the press is stopped for any considerable period, This involves material work and ex penditure of time, which it is a main object of my present invention to avoid. I attain this object by providing a construction inwhich a plurality of the composition rollers are made. movable into and out of contact with their companion rollers, and in which the manipulation of a single actuating member serves, to move the several composition rollers away from their companion 3o rollers or back against such rollers, as conditions may require. Thus when the printing press is stopped, contact can be broken between the several rollers ,by a single operation, and as easily reestablished i -when the press is to be started 5 again.

Fig. 2 is a side elevation of the same with one of the side frames removed, the view being substantially as seen from the line IIII of Fig. 1; 50 Fig. 3 is a section on the line IIIIII of Fig. 1; Fig. 4 is a diagrammatic View of the members shown in Fig. 2, showing the means for driving certain of such members; Fig. 5 is a side view of the means for operating '55 the ductor roller;

When the printing press Fig. 6 is a front View, asseen from the right of Fig. 5, showing certain parts of the means for operating the ductor roller;

Fig. '7 is a side view of the actuating lever; and

Fig. 8 is a side view similar to Fig. 2, but show- ,5 ing the various rollers moved out of contact with their companion rolls.

Referring now to Figs. 1 and .2, the device includes a pair of side frames l0 and H, between which the various rollers, etc., are placed and m which serve as a support for the ink-fountain 12 with its fountain roll I3. A composition ductor roller M made to oscillate, between the fountain roll i3 and a steel vibrator roll l5, so as to transfer ink periodically from the fountain roll 15 to such vibrator roll. Between the side frames thereis rotatably mounted an ink-drum 16 upon which the ink is spread uniformly preparatory to being transferredto the formrollers (indicated diagrammatically and designated 1) of the press. Composition rollers H and I8 engage the inkdrum. Of these, the roller ll also engages the vibrator roll l5, so as to transfer ink therefrom to the ink-drum. A steel rider roll l9 engages between the composition rollers I! and 18. A third composition roller, 20, engages between the ink-drum and a steel vibrator roll 2! which latter rides between two of theform rollers and thus transfers ink to the latter.

The ink-drum and the vibrator rolls l5 and 2| are positively driven. To this'e'nd, a stud shaft carries a'gear 23 (which may be driven by a rack on the type-bed of the press). The gear 23 meshes with gears 2 and 25 associated with the ink drurn and the vibrator roll 2|, respectively. A shaft 26 is mounted between the side frames and carries a gear 2! .rotatably mounted thereon. The gear 2! is engaged by the gear 2d of the inkdrum and engagesa gear 28 associated with the vibrator roll l5. 0

As thus far described, the ink feeding device is of a character welliknown in the art, my present invention, as has been stated, being directed to the provision of an easy and quick means for breaking contact between. the composition rollers and their companion rolls. In the particular con .struction now being described, the rider-roll I9 is first raised from the composition rollers i1 and til, then the roller ll israisedfrom the ink-drum, and then the roller I8 is similarly raised. This 0 is effected by the operation of a single actuating member, which operation also effects the movement of the composition roller 20 away from the ink-drum and. vibrator roll 2|, as well as movement of the ductor roller l4 away from the 01111:- 5

tain roll I3, if the ductor roller happens to be in contact with the fountain roll at the time the ward (that is, to the right from the normal position shown in full lines in Fig. 7) the shaft 26 will be rocked clockwise. Upon the shaft 26, adjacent the inside of the frame I0, is secured an actuating head 32. This may, of course, be duplicated at the opposite end of the shaft 26 if desired.

The rider roll I9 has its bearing in a pair of levers 33, one at each side of the device, which extend from hubs 34 rockably mounted on studs 35 extending inwardly from the side frames. One of these levers is provided with atail piece 36, the end of which enters a notch 31 formed in the periphery of the actuating head 32. Thus it will be seen that clockwise movement of the head has the effect of raising the levers 33 and lifting the rider roll I9.

The composition roller I! has its bearing in a pair of levers 38 extending from hubs 39 rockably mounted on the above-named studs 35. The adjacent ends of the hubs 39 and 341 are formed with inter-engaging bosses 4! and 42 respectively (Fig. 3), a slight clearance being left between the bosses of the respective hubs. When the levers 33 begin to rise, as above described, the levers 38 will not at first be affected, because of the clearance; but when the bosses 42 have come into contact with the bosses 4! (Fig. 8), the levers 38 will begin to follow the levers 33 upward, thereby lifting the composition roller I'I away from the ink-drum and the vibrator roll I5. The hubs 39 of the levers 38 are formed with lugs 43 carrying adjustable stop screws 44 adapted to engage bosses 45 formed on the side frames. This ensures that the roller I! shall stop in the desired relation with the ink-drum and the vibrator roll I when the roller II! is returned to its operative position.

The composition roller I8 is mounted in bearings which are vertically movable in the side frames. Its shaft, or collars 46 or the like thereon, is adapted to be engaged by feet 41 formed at the ends of extensions 48 of the levers 33.

. Clearance is left between the feet 41 and the collars 46, with the result that the levers 33 and rider roll. I9 will have risen through a material distance before the roller I8 begins to be lifted from the ink-drum.

The composition roller 26 has its bearing in a pair of levers 49 pivoted to the side frames. One of these levers is provided with a tail piece 50, the end of which enters a notch 5| formed in the actuating head 32. Clearance is provided between the walls of the notch 5|, and the end of the tail piece; so that raising of the lever 49 does not begin until the actuating head 32 has completed part of its rocking movement. Thereafter the composition roller 26 is lifted away from the ink-drum and the vibrator roll 2|. The levers 49 are formed with stop portions 52 adapted to engage bosses 53 extending inwardly from the side frames, for the purpose of limiting the movement of the roller when it is returned to its operative position.

One of a number of available means for rocking the ductor roller l4 to and fro between the fountain roll I3 and the vibrator roll I 5, is shown in Figs. 5 and 6. In this construction, the ductor roller has its bearing in an arm 54 which extends upwardly from a rock shaft 55. A second arm, 56, extends downwardly from the rock shaft and is adapted to be engaged by a push rod 51 connected, through a link 58, with a rotating crank 59. A spring 69 normally holds the arm 56 in engagement with the end of the push rod. From this construction it will be seen that the rotation of thecrank 59 causes the ductor roller first to be moved against the vibrator roll I5 and then to be returned, under the action of the spring 60 against the fountain roll I3.

In providing for the movement of the ductor roller away from the fountain roll when the press is stopped, I secure to the shaft 55 a vertical arm 6| provided with a pin 62 which enters an elongated slot in a link 63. This link is connected to the actuating head 32 by means of a pin 64 1whigh enters a hole 65 (Fig. 2) in the actuating Of course, the ductor roller can be in various positions when the press is stopped. If, however, the press is stopped at a time when the ductor roller is in engagement with the fountain roll, the rotation of the actuating head 32 will cause the link 63 -to pull the ductor roller away from the fountain roll.

It will be seen from the foregoing that, supposing the. various rollers to be in the operative position shown in Fig. 2, all that is necessary to break the engagement between them and their companion rolls is for the pressman to shift the lever 29 from the position shown in full lines in Fig. 7 to the position shown in dotted lines. Similarly, all that is necessary in order to return the rollers to their operative locations is forthe pressman to push the lever back to its original position.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent is:

1. In an ink feeding device, the combination with a rotary ink drum, an ink-supply roll. a roller contacting said roll and said drum for transferring ink from the former to the latter a second roller engaging said drum, and a rider: roll engaging between said first and second rollers, of means for mounting said first roller for movement relatively to said ink-supply roll and said drum, means for mounting for movement relatively to said drum, means for mounting said rider-roll for movement relativelyto said rollers, and

a single means for first moving said rider-roll away from said rollers, then moving said first roller away from said ink-supply roll and said drum, and then moving said second roller away from said drum.

2. In an ink feeding device, the combination with a rotary ink drum, an ink-supply roll, a

roller contacting said roll and said drum fortransferring ink from the former to the latter, a second roller engaging said drum, and a riderroll engaging between said first and second rollers, of means for mounting said first'roller for movement relatively to said ink-supply roll and said drum, means for mounting said second roller for movement relatively to said drum, means for mounting said rider-roll ,for movement relatively to said rollers, an actuating member, and conmounting means whereby actuation of said member effects first a movement of said rider-roll awayfrom said rollers, then a movement of said said second roller nection means between said member and sald' first roller away from said ink-supply roll and said drum, and then a movementlof said roller away from said drum. i

3. In an ink feeding device for printing presses,

second the combination with an ink-supply roll, an ink drum, a roller contacting said ink-supply roll and said drum, a second roller contacting said drum and disposed adjacent said roller; a rider-roll,

contacting said rollers, and a third roller for transferring ink from the drum to the, inking means of the press, of means for mounting said rollers and rider-roll for movement out of operative position, and a single means for actuating said mountings to effect said movement.

4. In an ink feeding device for printing presses, the combination with an ink-supply roll, an ink drum, a roller contacting said ink-supply roll 311d said drum, a second roller contacting said drum and disposed adjacent said roller, a riderroll contacting said rollers, and a third roller for transferring ink from the drum to the inking means of the press, of means for mounting said first roller for movement away from said inksupply roll and said drum, means for mounting said second and third rollers for movement away from said drum, means for mounting said riderroll for movement away from said first and second rollers, an actuating member, and connection means between said member and said mounting means whereby actuation of said member effects first a movement of said rider-roll away from said first and second rollers, and then movement of said first and second rollers away from said drum, and also effects movement of said thirdroller away from said drum.

5. In an ink feeding device for printing presses, thecombination with an ink-supply roll, an ink drum, a roller contacting said ink-supply roll and said drum, a second roller contacting said drum and disposed adjacent said roller, a riderroll contacting said rollers, and a third roller for transferring ink from the drum to the inking means of the press, of means for mounting said first roller for movement away from said ink-supply roll and said drum, means for mounting said second and third rollers for movement away from said drum, means for mounting said rider-roll for movement away from said first and second rollers, an actuating member, and connection means between said member and said mounting means whereby actuation of said member effects first a movement of said rider-rol1 away from said first and second rollers, and then movement of said first roller away from said ink-supply roll and said drum, and then movement of said second roller away from said drum, and also effects movement of said third roller away from said 6. Ink feeding mechanism for a printing press comprising a fountain roll, an 'ink supply roll, a

ductor roller,means mountingthe ductor roller for movement into engagement with saidfountainroll and ink supply roller successively, an ink drum, a transfer roller engaging said drumand alsoengaging said ink supply roll, a rider roll engaging said transfer roller, a second transfer roller engaging drum, an intermediate roll engaging said second transfer roller and the inking means of the press, means mounting said rider roll for movement away from said first transfer roller, means mounting said first transfer roller for movement away from said drum, and said ink supply roll, means mounting said second transfer roller for movement away from said drum and said intermediate roll, and common actuating means for all said mounting means. I

7 In an ink feeding device for printing presses, the combination with a rotary inkdrum, a roller contactingsaid drum fortransferring ink thereto, and a second roller contacting said drum for transferring ink from said drum to the inking means of the press, a rider roller contacting said first-mentioned roller, of means for mounting said first roller for movement away from and toward said drum, means for mounting said second roller for movement away from and toward said drum, means mounting said rider roller for movement from said first roller and a single meansfor actuating the mounting means of all said rollersto move said rollers away from and a linkage connection with said moving means for moving the ductor roller whereby it may be separated from the fountain r011 after the press has been stopped.

i v JOSEPH SINKOVITZ.

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