US1974987A

US1974987A - Inking mechanism

Info

Publication number: US1974987A
Application number: US583311A
Authority: US
Inventors: Charles W Ginsberg
Original assignee: Irving Trust Co; R Hoe and Co Inc
Current assignee: Irving Trust Co; R Hoe and Co Inc
Priority date: 1931-12-26
Filing date: 1931-12-26
Publication date: 1934-09-25
Anticipated expiration: 1951-09-25

Description

Patented Sept. 25 1934 UNITED STATES INKING MECHANISM Charles W. Ginsberg, Brooklyn, N. Y., assignor to It. Hoe & 00., Inc., New York, N. Y., a corporation of New York; Irving Trust Company,

temporary trustee Application December 26, 1931, Serial No. 583,311

10 Claims.

This invention in general relates to inking mechanism for printing machines and more particularly to improved means for obtaining a fine and accurate adjustment of an inking roller relatively to form and ink distributing cylinders, with a view to the proper distribution of ink on the coacting members, and the prevention of any lost motion or play and the like between the roller and the said form and ink distributing cylinders.

Another object is to provide improved means for mounting inking rollers so that the most effective contact pressure between the said inking rollers and their coacting ink distributing and form cylinders may be determined with a view to preventing any tendency in the way of lostmotion, undesired play, chattering, etc., of the said inking rollers and coacting cylinders during operation, after the desired adjustment has been made.

A further object is ,to provide a bearing socket assembly for an inking roller, said assembly having means for adjusting an inking rollerto prevent lost motion, play, and chattering of the same relatively to coacting form and ink distributing cylinders, during subsequent normal operation.

, 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 well as convenient, practical, serviceable and eflicient in its use.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts, and in the details of construction hereinafter described and claimed, it being understood that various changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention. 7 V o The preferred embodiment of the invention is illustrated, in theaccompanying drawing,

wherein:

characters of reference indicate corresponding parts in the preferred form of the invention, 11 designates one of the side frames of a web roll printing machine on which form and

ink distributing cylinders

12, 13 respectively are rotatably mounted. Adjustably secured to the frame 11, by a screw bolt 14, and washer 10, is a socket or bearing assembly A in which the present invention is embodied and which adjustably supports an inking roller 15 as will appear hereinafter.

The assembly A comprises a bearing member 16 formed with an extension or arm 1'7 provided with a slot 18 in which the shank of the screw bolt 14 is received for permitting the adjustment of the assembly A.

Referring to Figure 1, it will be seen the arm or extension 1'7 is secured to or made integral with a section 19 of the said bearing member 16, to which another section or cap 21 is hingedly secured as by the pin or screw 22. Between the two sections 19 and 21, a bearing or bushing 23 is received, in which latter the shaft 24 of the inking roller 15, referred to above, is rotatably mounted. An eyebolt 25, arranged in registering

grooves

26, 27, formed in upper portions or

lugs

28, 29 respectively of section 19 and cap 21, and pivoted 'on a pin 30 'threadedly fastened to section 19, is adapted to receivea wing nut 31 which is engaged against the lug 28 of cap 21, whereby means are provided to clampingly engage or release the bushing 22 in which shaft 24 is mounted.

As an important feature of the present invention, and as best shown in Figure 1, the section 19 and arm 17 are formed with a passageway 32 communicating with a chamber 33 having a wall 34 which is apertured as at 35 to receive a pin or screw 36 which is fastened to the frame 11. Within the passageway 32, a spring 37 is arranged, one end of the said spring protruding into the chamber 33 and engaging against'the pin 36, while the other end of the same spring engages the bushing 23, maintaining a constant pressure or tension against the latter, and consequently the inking roller 24 while adjustments to same are being made. The tension or follow-through action exerted by the spring 37 permits an accurate or fine adjustment of the inking roller 15 relatively to the form and

ink distributing cylinders

12 and 13, insuring a more eificient operation of the inking mechanism as will appear hereinafter.

A conventional adjustment for positioning the inking roller 15 operatively against the

cylinders

12 and 13 mentioned above is shown on the lower portion of Figure, 1', which includes a cap or adjusting screw 38 threadedly secured in an offset portion of a bracket or member 39 bolted or otherwise suitably secured to the frame 11 as shown in Figure 3, and engaged against the member 16. The conventional adjustment also comprises an adjusting screw and

lock nut

40, 41 respectively, the adjusting screw 40 being threadedly engaged in the bracket 39 and engaged against a depending portion 42 of the arm 17, whereby the assembly A and consequently the inking roller 15 can be adjusted angularly about the shank of the screw 14, after the screw bolt 14 has been turned to temporarily free or loosen the arm 17.

The functions and operation of :the conventional adjustment above described are, of course, well-known'but have the recognized disadvantage that the inking roller 15 is thrust or dr'awn rigidly and not resiliently against the form and ink distributing cylinders 12 and-13, respectively by the adjusting screws 38 and 40'; In the rigid adjustment thus' obtained, it will be noted that when the said screws 38, Adam turned in order tolloosen same for adjusting the inking roller 15 relativelyto the form and

ink distributing cylinders

12, 13,- lost motion, chattering, or play in subsequent operation is prone to occur between the last-mentioned cylinders and the inking rollers, and particularly when any inequalities in the surface of the inking roller or the form and ink distributing stant pressure against the bushing 23 which receives shaft 24' of the inking roller 15 during the process of adjustment by the

adjustinglscrews

38, 40, after the screw bolt 14 has been loosened, thus permitting of a fine and accurate, non-chatter ing, 'effective contact between the inking roller 15 and the two coacting form and

ink distributing cylinders

12 and 13 respectively, during operation of the inking mechanism, after the screw bolt 14 has been tightened. It will be observed that the hitherto coarse or rigid adjustment of the inking roller 15 relatively to the form and

ink distributing cylinders

12 and 13 preparatory to operation, eifected by the screw 38 and the adjusting screw 40, will now be tempered or regulated by the present means in such wise that as the adjusting screws mentioned'above are turned, the position and pressure of the inking roller 15 maybe adjusted relatively 'to theform and

ink distributing cylinders

12, 13, indicated above to obtain the fine adjustment desired. After the adjustment is made, the screw bolt 14 is tightened and the inking mechanism is then ready for operation.

I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative" and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

What I claim is:

1. In mechanism of the kind described including. a frame adapted to rotatably support an inking roller and form and ink distributing cylinders, an'assembly comprising an ink roller'supporting bearing secured to means adjustably fastened to said frame, and coacting resilient 'and'non-resile ient means connected to said assembly and to said frame for finely adjusting the inking roller relatively to the form and distributing cylinders so that an effective non-chattering contact of the said rollers and cylinders during subsequent operation may be obtained.

2. An adjustable bearing support for the shaft of an inking roller, comprising a member receiving a bearing in which said shaft is rotatably mounted, a spring engaged at one end against said bearing and at another end against an element fastened to a frame whereon said bearing support is mounted, and a plurality of threaded members connected to the frame and the member for angularly adjusting said bearing, said spring exerting constant pressure against said bearing suppcrt maintaining same under tension against the threaded members while adjustments to the inking roller are being made by the threaded members. i

ing assembly pivotally mounted on a frame form-;

ing a :part of a printing machine, said assembly accommodatinga shaft of an inking roller, means connected to the mechanism. for moving said assembly and consequently the inking'roller relatively to a form cylinder and an ink distributing cylinder mounted on said frame, and resilient means connected to said bearing assembly for regulating the action of the first-mentioned means whilecmoving the assembly, for preventing play and lost motion of the inking rollerrelatively to said form and ink distributing cylinders during subsequent operation.

4. A device of the kind described comprising an assembly detachably securable to a frame, said assembly receiving a spring engaged against said frame and a bearing accommodating a shaft of an inking roller, said bearing being detachably secured in the assembly, and screw-threaded means mounted on said frame and engaged with said assembly for obtaining an efiieient adjustment of the inking roller relativelylto form-and impression cylinders mounted on 'saidframe.

5. A device of the kind described comprising means for supporting an inking rolleron a frame, screw-threaded means secured'to'the frame, for applying and varying an effective cont'ac't pressure exerted by said inking roller on coacting form and impression cylinders arranged-on said frame, and resilient means connected'to said device and frame for regulating the contact pressure applied during adjustment periods by said screwthreaded means.

'6. In a mechanismof the kind described, comprising means "for supporting an inking roller on a frame and adjusting it in operativerela'tionto an ink cylinder and to a printing form "carried on a form cylinden'bearing socketsfor the inking roller, a plurality of screw adjusting'means adapted to move each'bearing socket in two intersecting planes to bring the rollers into engagement with the ink cylinder andwith the form, and resilient means tending'to'force the ink roller "away from the cylinder and the form, a

'7. In a'mechanism of the kind described, comprising means for supporting an inking roller on a frame and adjusting it in operativerelation to an ink cylinder and to a printing form carried on a form cylinder,-bearing sockets forithe ink roller, a plurality of screw adjusting means adapted to move each bearing socket in two intersecting planes to bring the rollers into engagement'with the ink cylinder and with the form, springs tending tofor'ce'the ink roller away from the=cylinder andtheform, and means for rigidly securing the sockets to the frame.

8. The combination with rollers of an inking mechanism for a printing machine, of adjustable sockets, an inking roller rotatably supported by the sockets, separate means for adjusting each socket thereby moving the ink roller in different directions relative to the rollers of the inking mechanism, and a common resilient member for each socket exerting tension on the sockets in opposition to the separate socket adjusting means.

9. The combination with rollers of an inking mechanism for a printing machine, of pivoted sockets, an inking roller rotatably supported by the sockets, separate means for adjusting each socket in different directions about its pivot thereby universally adjusting the ink roller relative to the rollers of the inking mechanism, and a common resilient member for each socket imparting tension to the socket in opposition to the separate socket adjusting means.

10. The combination with rollers of an inking mechanism for a printing machine, of adjustable sockets, an inking roller rotatably supported by the sockets, means for adjusting each socket, and a resilient member positioned Within the socket and reacting against an external member to impart a tension to the socket in opposition to the adjusting means.

CHARLES W. GINSBERG.