US1799703A - Inking mechanism for rotary printing machines - Google Patents

Description

April 1 c. G. QUICK ET AL 1,799,703

INKING MECHANISM FOR ROTARY PRINTING MACHINES Filed Sept. 19 1928 INVENTgRs -'O s "Ir-:1 Qh I: l

Patented Apr. 7, 1931 Un ts 'srar CECIL GEORGE QUICK, OF ELTHAIJ, LONDON, AND 'EDXVABD THOI'EAS EEORRI 61 CAT- FORD, LOETDON, ENGLAND, ASSIGNORS T0 HOE & (30., ENG, 013 NEW YORK, N. Y., A

COBIORATION OF NEW YORK INKING MECHANISM FOR, ROTARY PRINTING MACHINES Application filed September 19, 1928, Serial No.

This invention relates to improvements in inking mechanism for use in rotary printing machines, especially those of the type used for printing newspapers and similar products.

Many of these machines are supplied with ink by means of pumps which draw ink from a reservoir and force it through conduits to an ink rail which is supported in close proximity to an ink distributing cylinder. The ink rail is constructed with chambers disposed longitudinally on the side which is adjacent to the cylinder, the length of the chambers usually corresponding to the width of a column of the printing. Each of the chambers is connected by a conduit to a pump, and has an orifice through which the ink is forced against the surface of the ink distributing cylinder.

In the past, machines having inking mech anisms of this type have had the ink rail fixedly supported; but it has been found that a better distribution of the ink is obtained and consequently better printing, when the ink rail is given a limited reciprocating movement lengthwise of the cylinder.

It is an object of the invention to provide an improved inking mechanism that will produce a better distribution of ink on the inking cylinders, than is obtained with mechanisms heretofore known.

it is also an object of the invention to provide an inking mechanism of generally improved construction, whereby the device will be simple, durable and inexpensive in construction as wellas convenient, practical, serviceable and eflicient in its use.

Vt ith the foregoing and other objects in v printing 306,832, and in Great Britain. October 1'7, 1955-7.

L machine partly in section and partly in outline, showing the improved ...ing mechanism and cooperating parts of e machine.

Figure 2 is a longitudinal view of a portion of the improved inking mechanism as shown in Fi ure 1 this view de ictin the J :3 7 a apparatus as viewed 1D. the direction of arrow 2 of Figure 1, and

Figure 3 is a horizontal view'partly in sec 6 tion of the mechanism by means of which the ink rail is reclprocated, this View being taken as it appears on line 3-3 of Figure 1 and in the direction of the arrow.

in the drawings, 11 indicates one of the two side frames of the machine, in which be reciprocated along their axes, by suitable The roller 14L is driven by contact well known mechanism, to aid in evenly distributing the ink on the cylinder 13.

An ink feeding device 19 is formed with an ink rail 20 having a series of chambers, each with an orifice, one of which is shown at.

21. Thesechambers are connected by con duits 22,. with pumps, and a reservoir not shown on the drawings. p The ink feedingdevice is provided with slides 23 and 2 1, which are fitted to a frame, 25, having guideways 26 and 2?, and a gib 28. The frame 25 also has slides 29, fitted to ways 30 in the main frame. The rack 31, is secured to the frame 25 and meshes with the pinion 32, keyed to the shaft 33.

Brackets 3 1 and 35 are secured to the frame and provide bearings for the shaft 36, to which are secured the worm wheel 37, and the face plate 38. A pin 39 carryin a roller 40, is eccentrically mounted on the face plateflOO and the roller operates in a groove 41, in the lengthwise of the cylinder, said means being ink feeding device 19. arranged to permit moving the said feeding The worm wheel 42, is secured to the shaft device away from the cylinder and out of of the cylinder 13 and meshes with the worm engagement with the reciprocating means. 5 wheel 37. It will thus be understood that In testimony whereof, we aflix our signawhen the machine is running the shaft i tures.

will be driven and that the eccentrically CECIL GEORGE QUICK. mounted roller 40 will so act on the ink feed- EDWVARD THOMAS MORRIS. ing device 19, that it will be reciprocated in 10 the frame 25, parallel to the axis of the cylin- 75 der 12; thus moving the orifices of the ink rail along the cylinder 12 and distributing the ink thereon. Fromthere the ink is taken 05 by the roller 14 from which it is transferred 15 to the cylinder 13. The rollers 15, 16, 17 80 and 18 act to complete the distribution of the ink on the cylinder 13 from which it is then transferred to the printing plates by the usual form rollers. 20 It will be understood that a hand wheel or 8 other suitable means may be connected to the shaft 33 and by rotating same, the ink rail 20 may be moved away from the cylinder 12, and allow access for cleaning or inspection, and it will be seen that the roller will pass 9 through the groove 41, offering no restrictions to the movement of the ink rail away from or back to the operating position.

lVhat we claim is: 1. In an inking mechanism for printing machines, an ink distributing cylinder, an ink feeding device from which ink may be fed to the cylinder, means for moving the said feeding device toward and away from 35 the cylinder, and means for reciprocating the feeding device, said reciprocating means being automatically engaged with and disengaged from the feeding device. when it is moved respectively toward and away from m the cylinder.

2. In an inking mechanism for a printing machine, an ink distributing cylinder, an ink rail adapted to be supplied with ink, orifices in said rail through which ink may be fed to 45 the cylinder, and means for reciprocating the ink rail; said means including a roller mounted eccentrically to the rotating shaft and engaging the sides of a transverse groove in the said rail. 60 3. In an inking mechanism for a printing machine, an ink distributing cylinder, an ink feeding device from which ink may be fed to the cylinder, a transverse groove in the feeding device, a rotating shaft mounted with 55 its axis substantially transverse to the axis 1 0 of the ink cylinder, and a roller carried by the shaft and eccentrically supported with relation thereto; said roller being adapted to operate in the said groove and thereby re- 00 ciprocate the feeding device.

4. In an inking mechanism for a printing machine, an ink distributing cylinder, an ink feeding device adjacent thereto, from which ink may be fed to the cylinder, and =65 means for reciprocating the feeding device

Images