US101703A - Improvement in inking-apparatus - Google Patents

Description

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`univer BARTH, orfor'NoINNi/irl, onto.

Letters Patent No. 101,703, datedApr/il 12, 1870.

IMPROVEMENT IN INKING-APPARATS.

The Schedule feiert-ed to in these Letters Patent and making part of the same.

To whom it may concern t Be it known that I, HENRY BARTH, of Cincinnati, Hamilton county, Ohio, have invented a certain new and useful Improved Ink-Distributing Apparatus for Printing-Presses; and I hereby declare the following to be a full, clear, andk exact description thereof, reterence being had to the accompanying drawings, making part of this specification.

My invention has for its primary object tberegulation of the distribution of the ink without disturbing the surface with which the type-rollers come in con tact. i

The first part of my invention consists in giving `the ink-fountain, or adapting it to receive, an endwise rcciprocation.

The second part of my invention 'consists in the employment or use, in combination `with such fountain and a rotary ink-cylinder, ofa fountain-roller and dip-roller, reciprocating with the former.

Figure 1 is al perspective view of a portion of an inking-apparatus embodying my improvement.

' Figures2 and '4 are top views of my apparatus in diiferent positions of the fountain and its attachments.

Figure 3 is atransverse section of my apparatus.

The upright portions A B of the main frame have rectangular boxes, a b, in which slides a bar, C, of the reciprocating fountain-frame.

The fountain E is attached tothe arms F G of the frame, and thus acts as a brace thereto.

The arms F G are also stayed by a cross-bar H, which prevents their ends from spreading.

To the ends of the arms F G is pivoted the diproller framef', in which is journaled the dip-roller J.

This frame I is iaised to bling the dip-roller incontact with the fountain-cylinder K by a camprojeetion, vvvl, upon the shaft of the ink-cylinder L, tbe said projectioncoming'in contact, at a certain part of its revolution, with the elbow t' of the dip-roller frame.

As the frame I is allowed to subside with the elbow c' resting upon the concentric portion of the shaft of the cylinder L, the surface of the dip-roller is brought in contact with the said cylinder L, and

communicates to the same a portion of the ink taken from the'fonntain-cylinder K.

In line with the axis of oscillation ot the frame I is the distributing-roller M, which is journaled in vertical slots N- in the portions A B of the main frame.

\ This distributer M rests upon the -cylinder, and

has endwise reciprocation given to it by the alternate pressure against its two ends of the frame-arms F and G. Y The bar C has two downwardly-extending cheeks, O O', which form a yoke embracing' the cam P, from which the fountgin-frame I receives its rcciprocation.

The cam P may be similar in all respects to the cam employed to cause an adjustable reciprocation of the ink-plate, in my patent on improvements in printing-presses, dated October 22, 1867, and itis unnecessary to describe the same here.

It will be seen that, owing to, the endwise recipro cation of the diproller and fountain, the ink will be supplied with more regularity to the ink-surface upon the cylinder L, for the reason following:

It being found practically impossible to so regnlate the ink that it shall be brought up in equal -quantity along the whole length of the fountain-cylinder, it will be obvious that, by giving a proper end- Wise reciproca-tion to the dip-roller and fountain, the portion ofthe cylinder receiving an undne'ainonnt of ink from the dip-roller at one contact may be made to receive a smaller amount at the next contact, and cioe versa.. c

This important end.l has heretofore been sought to be obtained by giving an endwise reciprocation to thejnk-distributing cylinder, but with imperfect results, because the friction' against t-he inking or typerollers was so great a's to destroy them.

It is well-known to printers that to perform good Work the type-rollers must have au elastic, smooth and tender face, and that the greatest hardship which they are capable of undergoing is that of rolling upon the ink-surface and type; consequently, when there is endwise motion between the said rollers and the inkfsurface, as of cylinder L, the face of the rollers is destroyed and they are rendered worthless.

Another advantage of my plan is the more perfect and even distribution of ink arising from commencing the operation at an earlier portion of the work.

. Still another advantage consists in saving the cost and friction of one distlibnter, andthe space occupied by the same, by making the supply-roller discharge also the function of a distributer. I have described my improvement as adapted to an ink-'distributing fountain, but reserve their-ight to apply the saule principle of distribution to presses having an ink-plate or band, or other ink-supply or source.

` I claim herein as new and of my invention- 1. The provision ina printing-press of an ink- ,trough or 'fountain havingl an automatic reciprocatlon transverse of the delivery, substantially as bereiu shown and described, for the purpose set forth. 2. The combination and arrangement of the diproller frame I, rollers J K, fountain E, and cylinder L, substantially as set forth.

In testimony of wbichinvention I hereunto set 1n y band.

Witnesses:

Gno. H. KNIGHT, A JAMES H. Lunas.

HENRY BARTH.

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