US1658588A

US1658588A - Inking mechanism for printing presses

Info

Publication number: US1658588A
Application number: US112573A
Authority: US
Inventors: Henry F Bechman
Original assignee: DUPLEX PRINTING PRESS CO
Current assignee: DUPLEX PRINTING PRESS Co
Priority date: 1926-05-29
Filing date: 1926-05-29
Publication date: 1928-02-07
Anticipated expiration: 1945-02-07

Description

Feb. 7, 1928. 1,658,588

H. F. BECHMAN INKING MECHANISM FOR PRINTING PRESSES Filed May 29. 1926 ing drum D mounted in framing F of ll atented Feb. 7, 1928.

l bfifi fjgg lJNiTED STATESPAT N ,QFFICE r r. Baum/ran, or BATTLE GREEK, mronrean, A.SIGNO.R; To nurnnx PRINTING CUMFAITY, or BATTLE GREEK, MICHIGAN, A oonronarron or mronrean.

rnmue MECHANISM FOR PRINTING rnnssns.

Application; mea- May 29, 1926.

' late the pressure and to compensate for shrinkage olthe rolls.

The accon'ipanying drawings illustrate one practical embodiment of the invention,

and I will explain the invention with referi 1 once thereto to enable others to adoptand use the same. In the claims the novel features of construction and comblnations' of parts for which protection is desired are sinnmarized.

In said draw1ngs:- W .iligure l is a top plan view of a: port1on ot the inking mechanism of a printing press showing my improved ink-roller supports. Fig. 2 is an enlarged side view of one of the roller supports.

Fig. 3 is an end view of Fig. 2.

ln the drawings. I have shown the invention as used in connection with an ordinary inking mechanism having an ink distributa suitable construction. Cooperating with this drum is adistributing roller R- which is journaled in adjustable supports, each COI11 prising a supporting member 1 and a complemental member 1 hinged to the member 1 at 1. Member 1" can be securely locked against the member 1 so as to enclose and support the roller journal. As shown ascrewflis pivoted at 2 toalugon the upper side of member 1, and is adapted to be en gagged with a bifurcated lug 1 on the up per side of member 1". /Vhen the member 1* is closed against the member 1, as in 2, the bolt 2 is dropped into engagement with the lug- 1. and clamped thereagainst by a wing-nut 2 as indicated in the drawings.

Member 1 be raised or lowered, and has a dog or tooth P on its lower side by which the opening or lowering movement of the member 1 is limited.

The roller supports are adjustably mounted on the frame F by means of rearwardly extending arms 1 on members 1 engaging slots 7 in the frame. Each arm 1 has an elongated slot 1 (indicated in dotted lines in Fig. 2) through which passes a bolt 3 which is tapped into the frame F. The member 1 also has a slotted lug 1 on its upmay be, of welhknown construction.

has an arm 1* by which it can Serial no. 1123-573.

per side which is rotatably engaged with a screw at tapped intotheframe F above the arm 1*; said screw havmg a header and a collar 4 between which the lug 1 closely fits.

The partsas thus far described are, or

It is necessary to have the rollerR adjustable. so as to cause it to bear on the 1nk drum orjtorm (as the case may be) with more or less pressure, and to take up shrinkage of j the ink roll. This adjustment is commonly made by ad usting arm 1 in the slot in the frame by means 01" screw 4 and when adjusted to the satisfaction ot the operator the roll support is clamped firmly in place by tightening bolt3; So tar this is common construction and practice. It 1s obvious and a stiff spring" 5 which may be any suitable kind. (beingv shown as a metal spring) is interposed between the shank 1 nd the head 3 of the bolt 3. This spring must be stiff enough to firmly hold the socket arm against the frame by frictional contact and to resist displacement bythe normal pressure on the ink roll, and yet be yielding; enough to allow the screw 4 to be operated for adjustment.

Washers 3 -3 are preferably used on bolt 3 to square or center the spring 5 so it will press evenly on the arm 1 and the head of the bolt 3.

With this simple improvement the setting of each rollsupport requires only one operation instead oi: three as outlined above.

There are ordinarily twenty-eight ink roller sockets to be adjusted on every sixteen page printing section. In an octuple press consisting; of four sections obviously there are l12such roller sockets. Each such rollor socket heretofore has required three operations to adjust it but by my invention only one is required, the amount of work and that such adjustment requires three opera- MODS-01 each support: first arm 1 must be equipped 'With my improvement, could have all the rollcrsadjusted in twenty-eight opertions. The placingof-this improvement on the roller socket means that 112 operations instead of 336 operations, are necessary in making the adjustment for the full complement of rollers onan octuple press.

thumb nut 2* is unscrewed and the I-bolt 2 with. thumb nut lifted clear of the slot in lug l-then the cap member 1 can be swung downward on its hingeuntil the lug l strikes the lower edge of further revolving around its hinge, and the roller R can then be readily? removed or reand coacting distributing rollers; inking roller supports adjustably mounted on the frame; friction means for the supports in any adjusted position; and means for adjustingsaid supports relative to the frame Without changing the adjustment of said friction means. j

2. In inking mechanism of the character 7 member 1. This. lug 1 is positioned to stop member l from normally holding specified, including a frame, an ink drum and coacting distributing roller; of inking roller supports each having an arm engag ing' the frame, a bolt tapped into the frame and rotatably engaged with the support to adjustthe lat-tor relative to the frame; ad-, justable resilient friction means engaging the said arm and normally holding the latter in any adjusted position; and means attached to the frame and engagingsaid support foradjusting it relative to theframe In order to remove the ink roller the Without changingthe adjustment of said friction means.

In inking mechanism of the character specified; including a. frame, a drum and a L'OilCiiiIig distributing roller; inking roll supports each comprising a supporting member having" a. slotted arm, a cap member connected with the supporting member, a bolt transfixing the slot in said arm; resilient friction means interposed between the head of the bolt and said arm to normally hold the support in any adjusted position, and a. bolt tapped into the frame and rotatably en gaged with the supporting member to adjust the latter relative to the frame Without changiim the adjustment of said friction means. i In testimony that I claim the foregoing as my own, I affix my signature.

HENRY F. BECHMAN.

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