US1008015A - Ink-distributing mechanism for printing-machines. - Google Patents

Description

Hi B. COULBY. INK DISTRIBUTING MECHANISM PQR PRI NTING MACHINES. WED MAR. 3o, 1911.

ION FILED JAN.25, 1910. RENE Patented Nov. 7, 191,1.

3 SHEETS-SHEET l.

H. B. LEY. INK DISTRIBUTING MBGHANISM Fo PPLI 1,908,01 5.

R PRINTING MAGHINES. RENEWBD 11.111.311, 1911.

ATION FILED JAN.25.1910.

3 SFZETS-SHEBT 2.

Patented Nov. 7, 1911.

Hi B. COOLBY.

INK DISTRIBUTING MEGHANISM POR PRINTING MACHINES.

APPLI GATION FILED JAN. 25, 1910, RENBWED MAR. 30, 1911. 1,008,01 5 Patented Nov. 7, 1911.

r Y Waff/Z euere@ narran srnrus PATENT orricn HENRY B. COOLEY, F

NEW BRITAIN, CONNECTICUT, `AS."IGrNOR TO THE AMERICAN `PAPER GOODS COMPANY, OF KENSINGTON, CONNECTICUT, A CORPORATION OIE NEW JERSEY.

Looaoiii.

Application filed January 25, 1910, Serial No.

To all whom fit may concern:

Be it vknown that l, HENRY B. CooLEY, a citizen of the United States, and resident of New Britain, in the county of Hartford and State of Connecticut, have inventedY a new and useful Ink-Distributing Mechanism for ljrinting-llfacliines, of which the following is a specification.

My invention relates to ink mechanism for printing machines with the object in View of providing efficient means for thoroughly comminuting and finely spreading the ink on the type.

A practical yembodiment of my invention is represented in the accompanying drawings in which,

` Figure 1 is a view of the ink distributing mechanism in elevation, broken away through the center, showing its arrangement with reference to a printing machine. Fig. 2 is .a vertical central section through the same, in the plane of the line rfb-A, Fig. 1. Fig. 3 is an end elevation. Fig. 4c is a view in detail showing the means for supporting and adjusting the ink transmitting rollers. Fig. 5k is a view of the same in section in the plane of the line A-A of Fig. It, Fig. 6 is a view in detail of one of theroller bearings, and Fig. 7 is a View in detail showing the wabble cam and co-acting mechanism.

The particular printing machine which I .have chosen to illustrate the practical application of the ink distributing mechanism is a rotary flat bed printing machine, such as shown in my pending application Serial No: 5399112 filed of even date herewith, and while the ink distributing mechanism is well adapted to this type of machine, it may also be used in connection with ma chines of other types.

The frame. of the printing machine is denoted by 1, the drive shaft by 2, the form cylinder shaft, driven by the drive shaft, by

`3, the form cylinder by 4, and the impression cylinder shaft, driven by the form cylinder, by 5.

. The. ink fountain is denoted by 6. It is provided with a downwardly inclined ink receiving plate 7y on which the 'ink is de- I positecl and down whichit travels to the inlr roller 8, forming aclosure for the fountain at the lower end of the plate. The plate 7 is pressed toward the roller 8 by means of a Specification of Letters Patent.

distributing- INK-DISTRIBUTING MECHANISM FOR PRINTING-MACHINES.

Patented Nov. 7, .1911.

Renewed March so, 1911. serial No. 618,007.

series of rocking dogs 6* under the `control of a series of set screws 7 The ink roller S is rotated step by step by means of a pawl and ratchet mechanism, the ratchet toothed wheel 9 being fixed on the shaft 10 of the roller 8, and the pawl 11 for engaging the ratchet wheel 9 being pivotally secured to a lug 12 on a sleeve 13 loosely mounted on the shaft in position to bring the pawl into engagement with the teeth of the Wheel 9. The sleeve 13 is provided with a depending' arm 14- haying an elongated slotin which the pin 15 may be adjusted, the pin 15 being connected by a pitman 16 with a crank 17 on dotted SFU. 2) on the drive shaft 2.

lnk i aken from the ink. roller 8 by means ,f the ink doctor 20 consisting of a roller mounted to rotate freely on the shaft 21 carried by a pair vof arms 22, 23, fixed to a'roclr shaft 24 mounted in suitable bearings in the frame 1 and operated by means of a crank 25 connected by a pitinan 26 with an eccentric 27 on the cam shaft 18. The rocking of the lshaft 24 and hence of the arms 22 and 23 carrying the doctor roller, brings the roller alternately into Contact with the positively ydriven ink roller 8, and the surface of the ink transferring drum 28. The transferring drum 28 is carried on the shaft 29 and is positively driven by means of gear 80 from gear 31 on the shaft of the form cylinder, through an intermediate pinion 32. rlhe teeth on the pinion 32 are made of sufficientlcngt-h so that the teeth on the gear 3() may slide alongthc same Without getting out of mesh and a longitudinal reciprocating motion is imparted to the drum 28 by means of a wabble cam 282i on the cam shaft 18, which communicates its motion to the shaft 29 through a vibrating yoke 29th, one arm of which is engaged by means of a roller 80* with the wabble cam and the other arm with a groove 31 in a sleeve 32* on the shaft 29. There are also fixed on sleeves 33, which form bearings for the shaft 29, two sets of roller arms, one set being denoted by 8e, 375 and the other set by. 86, 37. The arms 3e and 35' are at the .opposite ends of oneroller supporting shaft. Each ofthese arms is provi'drdawith a split hub 38,@,see Figs/ 3 and l 4, which'it clamped to the sleeve 33 by means the cam shaft 18, which cam shaft is driven by interchange gear, shownsupporting roo of a screw 39. Each of the arms, furthermore, carries at its outer end, a plate 40, 'in the present instance, a plate shaped llke or trunnion 44, is so constructed as to eitherv lock the roller shaft 0r trunnion in its position within the bearing` 0r t0 readily open t0 permit the shaft, together with the roller, t0 be removed. It consists of a stationary part 45 Xed to the plate 40 and provided with an inner lining 0f sonrie suitable bearing metal extending part way of the length of the bearing, the bearing itself being provided With an opening sufficiently Wide t0 permit the passage of the shaft 44. lVithin the stationary part 45 of the bearing, -there is a rocking bearing or part bearing 47, also provided with an opening 48 sufficiently wide to permit the shaft to pass through, and this half bearing is provided with a l disk 49 and is mounted loosely on the shaft 44 and also within the stationary bearing 45, and this bearing or lining within it meets the lining in the stationary bearing end t0 end so that this movable part of the bearing may be rocked t0 bring the two openings in-to alinement and permit the shaft to be removed or whenthe shaft is adjusted it may be rocked into position With its opening directed in the direction opposite that of the opening 46 in the stationary bearing, thereby effectively locking the shaft in its position and completing the full bearing for the shaft.

Each of the arms 34, 35, 36, 37, is provided With `.an adjustable'supporting plate and bearings' quite similar to the plate and bearing already described, so that each of the inkdistributing rollers 50 and 51, each carried by one set of the arms 34, 35 or 36, 37, may be lifted out of and put into its place and locked at pleasure. The ink distributing rollers 50 and 51 are intended to bear on the vink distributing drum 28 and receive their supply 0f ink from the surface of saiddrum. These ink distributing rollers 50and'51 are also in position to bear against and roll along the curved portions 52, 53, of the form cylinder 4, these curved portions` 52, 53, which are, in the present instance, portions of the surface of a cylinder, in the present type of machine being located between two flat beds formed on the c vlinder for receiving the chase. lhe-distributing Vrollers 50, 51 are replenished from drum y28 during the interval when they are out of contact with the forni cylinder.

The ink fed being applied to the curved portions 52, 53 of the form cylinder, is, before it is allowed to come in contact with the face of the type, transferred t0 a roller 54 mounted in suitable bearings in a vertically sliding rod or bar 55, which bar or rod `is held in a normally depressed position or in a position towardthe form cylinder by means of a spring 56. The rotary movement of the form cylinder presses the roller 54 upwardly so that when the curved portion 52 engages the roller 54, the latter will have its surface in contact with the grinding and spreading drum 57 mounted in the cross head 58 fixed to the main frame, and, before the roller 54 passes the curved portion 52 on the form cylinder and begins to travel under the tension of its spring 56 and of gravity, along the face of the type on one of the flat beds on the form cylinder, the curved portion 52 of the form cylinder will have engaged a second roller 59 mounted in a manner quite similar to the roller 54, in position to be pressed against the drum 57, and as the curved p0rtion 52 leaves the roller 54 and permits the latter to travel along the face of the type, it will still rub against the roller 59, causing it and the drum 57 t0 rotate, and finally the roller 59 will itself pass over the face of the type, the combined action of the several rollers being such as to thoroughly comminute and nely' spread the ink on the type,.completely avoiding any tendency to blur 0r daub the sheet being printed.

The means for feeding the paper or other material to be printed to the impression cylinder is quite similar in its general operation to that shown, described and claimed in my Patent No. 8749.43 granted me on December 31, 1907, entitled mechanism for feeding paper, and the impression cylinder for conveying the paper or material to be printed to the form cylinder may be of any suitable structure, for example, the structure shown in my pending application hereinbefore referred to.

The several rollers 50, 51, 54 and 59 are provided each with a pair of bearing disks similar to the disks 50*, 51* on the shaft of the roller 50, which bearing disks engage bearing rims 3*, 4* on the form cylinder to drive and-hold the roller in its proper relation to the form cylinder.

What I claim is:

lnk distributing apparatus comprising a forni cylinder provided with alternating curved and flat surfaces, an ink reservoir, ink distributing drums located on opposite sides of the form cylinder and ink rollers interposed between the said drums and form cylinder and between one of said drums and the ink reservoir, one set of rollers interposed between a drum and the form cylin-l der being arranged to engage the drum and curved portions only of the form cylinder and the other set of rollers interposed bepresence of two Witnesses; this 21st dey of tween the' other drum and form cylinder January 1910. being mounted to reciprocate and engage the drum and both the curved and Het surfaces HENRY B COOLE Y' 5 of the form cylinder. Witnesses:

In testimony, that I claim the foregoing HENRY C. THIEME,

as my invention, lI have signed my name in C. S. SUNDGREN.

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