US433352A - Inking device for printing-presses - Google Patents

Description

(No Model.)

J. KURTEN. I INKI'NG DEVICE FOR PRINTING BRESSES. No. 438,352.

Patented July 29', 1890.

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UNITED STATES.

PATENT OFFICE.

JOSEPH KURTEN, OF ST. LOUIS, MISSOURI.

INKING DEVICE FOR PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 433,352, dated July 29, 1890.

Application filed February '7, 1890. Serial No. 339,778. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH KUR'lEN, of the city of St. Louis,in the State of Missouri, have invented a certain new and useful Improvement in Inking Devices for Printing-Presses, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to certain improvements in printing-presses, the object being to provide a fountain-roller which will not be affected by the difference in speed between it and the distributing-roller by the intermediate or transferring roller, which carries the ink from the fountain-roller to the distributing-roller; and to this end my invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a detail side elevation illus trative of my invention. Fig. II is a top view of the parts shown in Fig. I. Fig. III is a transverse vertical section through the shaft of the fountain-roller and which shows the mechanism by which the fountain-roller may, when desired, be operated by hand, the section being taken on line III III, Fig. IV. Fig. IV is a vertical longitudinal section taken on line IV IV, Fig. I. Fig. V is a vertical transverse section taken on line V V, Fig. IV.

Referring to the drawings, 1 represents part of the frame of a printing-press; 2, the distributing-roller; 3, the fountain-roller, and 4 the intermediate transferrii'lg or feed roller, which carries the ink from the fountain-roller to the distributing-roller. It is quite coinmon to so mount the roller 4 that it will oscillate back and forth from the roller 3 to the roller 2, and vice versa. It has, however, been common to operate the roller 3 by a mechanism which is not positive in its action, the result being that the increased velocity of the distributing-roller 2 is transferred to and affects the roller 3 by the roller it-that is to say, the roller 3 revolves at a slow rate of speed, while the distributing-roller 2 revolves at a comparatively high rate of speed. The transferringa'oller i, being mounted loosely in its bearings, partakes, when brought in contact with the distributing-roller 2, of the velocity of the latter, and when it is dropped down onto the roller 3 again imparts this increased velocity or a portion of it to the roller 3, causing the latter to revolve at a higher rate of speed than normal and causing, also, an uneven distribution of ink upon the transferring-roller 4. To avoid difficulties of this kind, which, by experience, I have found to exist, I operate the roller 3 by a positive driving mechanism, consisting, preferably, of a worm-wheel 5 on the end of the shaft 6 of the roller 3, this wheel meshing into a worm 7 on a shaft 8, journaled in bearings 9, secured to a bracket 10, which is made fast to the frame 1. The shaft 8 is provided with a number of i it to the roller 3, which turns in the ordinary fountain 12; and it will also be seen that as the roller 4 falls onto the roller 3 itsvelocity, which is in excess of that of the roller 3,will

not impart to the roller 3 any additional speed,

as such additional speed of the roller 3 would be retarded by the worm and worm-wheel, which, revolvingcontinuously, will insure a positive uniform movement to the roller 3.

It is sometimes desirable-as, for instance, in testing a press-to be able to turn the roller 3 by hand, and for this reason I have provided a connection between the wormwheel 5 and the shaft 6 of the roller 3 which will permit of the latter being turned without moving the former, this mechanism consisting of a sliding ring 15, having a conical or tapering outer face 16, and which fits within an opening 17 in the outer face of the wheel 5. (See Fig. IV.) The outer wall of the recess 17 is made conical or inclined, as shown at 18, to correspond with the shape of the outer face 16 of the ring 15. The ring 15 has an outwardly-extending neck 19, which is threaded to receive a nut 20, as shown in Fig. IV, the nut having an outer face 21 with an opening through which the shaft 6 passes. Within the neck 19 of the ring 15 is a collar 22, which fits between the hub of the wheel 5 and the outer wall 21 of the nut 20. This collar holds the nut 20 from inward movement on the shaft, and it is held from outward movement on the shaft by an outer ring or collar 23, secured to the shaft. The collar 22 is keyed to the shaft, as shown at 2 1, Fig. V,

' and it is also keyed to the neck 19 of the ring 15, as shown at 25, Figs.IV and V. The wheel 5 is loose on the shaft 6. It will thus be seen that when the nut 20 is turned to the right the ring will be drawn away from the wheel 5, when the latter will turn freely on the shaft 6 without revolving or turning the latter; or, in other words, the shaft 6 can be turned without the wheel 5 being turned, and it may be thus turned bymeans of ahand-lever 26, fitting on the shaft 6 and provided with a pawl 27, engaging a ratchet 28 on the shaft, the ratchet, of course, being keyed or otherwise secured to the shaft, so as to turn the shaft when it itself is turned by the hand-lever. When the roller 3 is turned by the gearing described, the pawl 27 can be thrown out of engagement with the ratchet, so that this hand mechanism will not interfere with the power mechanism. When the power mechanism is used to turn the inking-roller, the nut is turned in the proper direction, which causes the ring 15 to be moved inwardly, thus also, the turning of the shaft through the described connection between the ring 15 and the shaft, consisting of the neck 19 of the ring, the keys 25, the collar 22, and the keys V 24. With this arrangement I am enabled to chinery power, and vice versa.

I claim as my invention- 7 1. The combination, with the distributingv roller, the fountain-roller, and an intermediate transferring-roller having a shaft, of a loose worm-wheel on said shaft, a worm engaging said wheel, a clutch for binding said wheel to the said shaft, and a handle or lever for turning said shaft and fountain-roller independently of said worm-wheel, substantially as set forth.

2. The combination, with the distributingroller, the fountain-roller, and an intermedi ate transferring-roller having a shaft, of a loose worm-wheel on said shaft, a worm engaging said wheel, a clutch for binding said worm-wheel to said shaft, a ratchet-wheel keyed to said shaft, and a lever or handle pivoted on the shaft and having a pawl engaging said ratchet-wheel, substantially as set forth.

3. In a printing press, in combination with a distributing-roller, a fountain-roller, and an intermediate loosely-mounted transferring-roller, of a mechanism for driving the fountain-roller, consisting of a worm-wheel mounted on the shaft of the fountain-roller and having a recessed face, a sliding ring fitting in the recess of the face of the wormvwheel and having a threaded neck, a nut held from end movement on the shaft of the fountain-roller, a collar keyed to the shaft of the fountain-roller and keyed to the neck of the sliding ring, and a hand-lever provided with a pawl-'and-ratchet connection with the shaft of the fountain-roller, substantially as and for the purpose described.

JOSEPH KURTEN. In presence of- E. S. KNIGHT, Tnos. KNIGHT.

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