US884872A

US884872A - Means for inking printing-rolls.

Info

Publication number: US884872A
Application number: US30797506A
Authority: US
Inventors: Fredrick C Sixt; William M Reichart
Original assignee: Chandler and Price Co
Current assignee: Chandler and Price Co
Priority date: 1906-03-26
Filing date: 1906-03-26
Publication date: 1908-04-14
Anticipated expiration: 1925-04-14

Description

PATENTED APR. 14. 1908.

REIOHART.

No. 884,872. I F. 0. SIXT & W. M.

MEANS FOR INKING PRINTING ROLLS.

APPLIQATION FILED MAR. 26, 1906.

I, U H W? M: m,

AT YES I OR 3 MM BY H 5 TW.

Invrrnn satires PATENT OFFICE.

FREDRLOK C. SIXT AND WILLIAM M. CHANDLER d: PRICE 00., OF

ASSIGNORS TO THE MEANS FOR INKING PRINTING-ROLLS.

j No. 884,872.

county of Cuyahoga and State of Ohio, have invented certain new and useful improve- 'ments in Means for inking Printing-Rolls; and-we do declare that the following is a full,

cle'a-r, and exact description of the invention,

which Will enable others skilled in the art to Whi'chit'appertains to make and use the same.

Our'inve'ntion' relates to improved means for inking printing-rolls, and the invention consists more particularly in a reciprocating ink distributing roll and means for reciprocating the same longitudinally, all as shown and described and pointed out in the claims.

Inthe accompanying drawings Figure 1 is a cross section of a set of inking rolls and an ink distributer associated therewith and a plate on which the rolls rest. Fig. 2 is a longitudinal sectional elevation of the parts corresponding substantially to line m, .r, Fig. 1. Fig. 3 is an enlarged longitudinal sectionalview of one end of the ink distributing roll showing one form of cam engagement therefor, and Fig. 4. is a similar section of the other end of the said roll showing a modification of the cam engagement. Fig. 5 is an end view of Fig. 2, partly in section, and showing. the means for adjustably raising and lowering the ink distributing roll in res ect to the inking-rolls, as hereinafter fully d scribed.

As thus shown A represents the plate, B the inking-rolls, socalled, and C the ink distributing roll, the idea of the invention being to give the said distributing roll a longitudinal or axial reciprocating movement, sometimes referred to in the printers vocabulary as a vibrating movement, and adapted to occur mechanic ally while said roll is rotating. The effect sought in this action is to obtain perfect distribution of the ink to the inking rolls beneath and avoidance of streaks from irregular inking as might otherwise occur.

Of course we are aware that in a certain sense it is not entirely new. to provide vibrat ing or reciprocating distributers for inkingrolls, and different devices to accomplish this result have come under our observation,

but We are not aware that a construction like ours, or the equivalent thereof, mechanically, has ever before been known or used.

I Specification of Letters Patent.

Annlication filed March 26, 1906 Serial No. 307,975.

thereon by Patented April 14, 1908.

Now, referring again to the several parts, 'A B, and O above, it will be seen that the distributing roll is of cylindrical form, preferably, and provided with

heads

2 and 3, respectively, of such thickness as to form suitable bearings for rotation on the cam sleeve D at one or the other end and upon shaft E at the opposite end. The saidsleeve is a fixed part mounted on shaft E which preferably runs through from end to end of said distributer roll and projects at each end outward beyond the ends thereof, where it is supported "in arms G. The said arms are pivoted at one end on a fixed member H and are adjustable at the other end in respect to said member or part by adjusting screws 4, which are freely rotatable in the ends of said arms and threaded in part H, and shaft E projects throughthe middle of these arms and is held from rotation therein by lug 5 or its equivalent, on said shaft and engaged with an open slot in said arm in this instance.

The cam sleeve D is locked on or with shaft F by means of pin 6, or its equivalent, so that it follows that neither said shaft nor said sleeve revolve but the ink distributing on shaft E at the other by or through contact with power driven inking-rolls B; as usual.

Longitudinal reciprocatin 'movement of the ink distributing roll is o tairied by'*-prbviding sleeve D with an endless cam groove? in one form and 8 in another form according as a spherical ball 9 is employed for making actuatingconnection or a roller 10, Figs. 3 and at.

runs at an angle of inclination about sleeve D, is adapted to a ball shaped or spherical rol groove or channel is adapted to a transversely straight edged roller 10, and which is supported to rotate on a spindle 12 threaded l into head 3 of the said roller. Ball 9 is free in channel 7 and in acavity in ball bearing 1 screw plug 12 set into head 2 of roller C.

Either of these constructions of

roller bearings

9 and 10, or their e uivalent, may be used, I and in any event rol er 0 rotates about tube or sleeve D and is caused to reciprocate the roller therein of whatever form running in a cam channel, groove,-or guide in or upon the surface of sleeve D, or

' an equivalent construction thereto. It is,

roll revolves on said sleeve at one end and.

In Fig. 3 the cam groove or channel, which ling connection, and in Fig. 4 the said however, to be observed in this connection that the distributing roll itself as a roll is axially movable on bearings directly in its heads, and is supported also on a fixed shaft or shaft that is not adapted to slide axially A nor to revolve. Hence the said roll is shorter than the inking rolls with which it contacts and itself slides lengthwise on said rolls while it is rotated thereby within the limits of its cam bearing, and said bearing having a rolling engagement with the cam renders themovement of the roll easy and noiseless. 7

It will be noticed that shaft E passes through a bearing of its own size while sleeve Dhas a considerably larger opening or hearing in head 2, so that the distributing roll has differential hearings in its respective heads or ends as shown.

What we claim is 1. The ink distributing roll having differential bearings inits ends, a non-rotatable shaft adapted to one of said bearings and a sleeve fixed on said shaft adapted to the other bearing, and a cam channel in said sleeve operatively engaged with the corresponding head of said roll by means of a rolling connecting member, in combination with I an inking roll in operating co 'n' act With/said ink distributing roll.

2. In an ink distributing mechanism, a roll provided on its interior with means for moving said roll longitudinally, comprising a stationary collar rovided with a cam groove semi-circular 111 cross section and a ball mounted on the inner surface of said roll a extending the distance of half its diamete into said cam-groove.

,3. In an ink distributing mechanism, a hollow roll provided on its interior with means for moving said roll longitudinally, comprising a non-rotatable collar provided with a cam groove semi-circular in cross section, a semispherical notch in the inner surface of said roll and a ball extending the distance of half its diameter into said cam groove and the distanceof half its diameter iito said semi-spherical notch. l g In testimony whereof we sign this specification in the presence of two witnesses.

FREDRICK C. SIXT. WILLIAM M. REICHART. Witnesses: R. B. Mosnn,

O. A. SELL.