US360185A - wheelan - Google Patents

Description

(No Model.) 2 Sheets-Sheet l. F. H. WHEELAN 85 A. SCHUROH.

GHROMATIG PRINTING APPARATUS.

N0. 360,185. Patented Ma.1.29, 1887.

N. PETERS maling-mn wmingwn ma (No Model.) 2 Sheets-Sheet 2.

F. H. WHEELAN 81.- A. SGHURGH. GHROMATIG PRINTlNe APPARATUS.

No. 360.185. Patented Mar. 29, 1887.

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FAIRFAX II. W'HEELAN AND ALBERT SCHURCH, OF SAN FRANCISCO, CAL., ASSIGNORS OF ONE-FOURTH TO LOUIS GHRISTIN, OF lSAME PLACE.

oHRoMATlo-PRINTING APPARATUS.

SPECIFICATION oming part of Letters PatentNo. 360,185, dated March 29. 1887,

Application filed August 3l, 1585. Serial No. 175,857. (No model.)

To @ZZ whom it may concern:

Beitknown that we, FAIRFAX HVHEELAN and ALBERT SeHURcH, both of the city and county of San Francisco, State of California,

5 have invented an Improvement in Chromatic- Printing Apparatus; and we hereby declare the following to be a full, clear, and exact description of thesanie.

Our invention relates to certain improve- 1o ments in chromatic printing, so that two or more colors may be printed at one impression.

It consists in the construction and combination of devices, all of which we shall hereinafter fully describe.

The object of our invention is to provide a practical apparatus for printingin two or more colors.

Referring to the accompanying drawings,

zo Figure l is a longitudinal vertical section of a portion ot' our apparatus, showing` a part of the impression-roller', the distributing-rollers, and inking-pad for one set of type or surfaces, the other set of type or surfaces, its inkingroller, and means for operating` it. Fig. 2 is a plan view of the iuking apparatus for the type-surface D, showing the frames M and WV,

in section. Fig. 3 is a plan view ofthe mechanism illustrated'in Fig. l, and showing portions of the frames M and NV broken away. Fig. 4t is a detail showing the frames M I? NV and connections.

A is the impression-roller of a printingpress.

B B are rollers which are used for distributing and applying any color of ink to a fixed set of type, B', which are the usual typeof the ordinary form.

C is the ink-distributing table,whieh reciprocates in order to receiveink from the inkingroller (not here shown) and to carry it to the distributing-rollers B.

D represents the type or surfaces which are to print the second color, the type which print the primary color being the ordinary type heretofore mentioned. The type D are fixed in the reciprocating bed and move with it.

It is necessary that the type D should be inked before passing under the impression- 5o roller, and should be moved out of the way while passing beneath the rollers B of the first set of type, and again raised to place after passing these rollers, so as to present theirsurfaces to the impression-roller.

In Fig. l is shown the bed or block X for the type D,which are on a frame, X, having corrugated under surface, or furnished with alternate elevations and depressions, as shown at E, and these move over similar elevations or depressions,F,on a plate, Xi", in the base or 6o bed X. Vhen the elevations E and F are brought in vertical line, the elevations E, resting on top of those at F, will raise the type-surface so that it is possible to receive ink or give an impression; but when the elevations E fall into the depressions between F the type will be depressed below the level of the inking-rollers. In order toproduce this alternate elevation and depression of the type,the plate X3 of the elevationsF is so mounted in the bed 7o X as to be reciprocated slightly therein, and said frame is connected bya rod, G, toa crankpin, g, on a drum or cylinder, H, mounted in one end of the bed, so that when said cylinder is oscillated it will canse the frame of the 7g elevations F to be reciprocated, thus raising or lowering the type D, as heretofore described.

In order to move the elevations F at the proper time, the pins I are fixed in the end of 8o the drum H, and these pins, as they move against suitable arms or lugs placed at proper points, will be struck and cause the drum H to oscillate for the purpose described. But before the type D are depressed they should be inked. rlhis is accomplished asv follows: To the side of a fixed main frame, M, is secured a frame, XV, which is provided with small anti-friction rollers w, n'tted in a vertical slotA in said frame M. Fis another frame, which go is slotted and travels vertically on small roll` ersp, secured to frame 'V. Journaled on a shaft, q, passing through the frame l is the inking-roller Q. Iivoted to the frame Wis a bell-crank lever, L, the lower end of which carries a roller, N. The upper end of the lever L cornes in contact with the lower arm of a pivoted bell-crank lever, O, the pivot-shaft of which passes through the frames NV and M, and said lever is influenced to remain in posiloo tion by means of aspring, o. The other or horizontal arm of the lever O is pivoted to the frame P at o. The lever L is limited in its movement by the fixed stop Z.

The operation so far as explained is as follows The type-bed X has on its side a track, v

As'the type D pass forward this track tact with the type D. To the frame'W is secured the arm J, which comes in contact with the pin I ofthe drum H, whereby it causes a partial rotationof said drum, so that through the pitman G the elevations F are moved to allow the projections E of the type-frame X3 to fall into the intervening depressions,so that the surface of said type is depressed in order to avoid the distributing-rollers B. It is also necessary that the inking-pad G should avoid the inking-roller Q. Accordingly we have the following mechanism z Jourualed in the end of a bell-crank lever, S, is a large wheel, R, having a cushioned surface, r. The lever S is pivoted on a shaft, T, to the main frame M, andv is connected by a link, II, with a bellcrank lever, V, pivoted on a shaft, X2, which passes through the main frame M. The other arm of the lever V is pivoted to the frame W. The lever Sis held in its position by means of a pivoted arm, s', influenced by a spring, s2, and connected with the lever S by a link, s. As the inking-pad C moves forward it first comes in Contact with the cushioned wheel R and raises said wheel, whereby, through the levers S and V and the link U,the Whole frame Wis raised slightly, and as said frame carries the frame P, in which the inkiug-roller Q is mounted, it will be seen that said roller is thus raised above the inking-pad, so'that it does not come in contact with said pad. As the arm J is secured to the vertically-adjustable frame W it will rise as it comes in contact with the track d on the type-bed X, and will therefore not interfere with the passage of said bed.

When the type D, depressed, as heretofore described, to avoid .the distributing-rolls B, have passed said rolls and 'are'l about to pass under the impression-cylinder A, it is necessary that said type shall be raised again to position. This is accomplished by the arm X, which, as in the case of the arm J, comes in contact with the uppermost of the pins I of the drum H inthe bed of type D. Thus just before the type D pass under the cylinder they are elevated tol position, and consequently make their impression. But it is also necessary that the arm K shall not be in the Way of the inking-table C. To avoid this We secure the arm K to one end of a series of levers, Y, pivoted to one another, and carrying a roller, Z, with which the table G comes in contact and raises it, whereby the arm K is also raised out of the way.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a chromatic-printing press in which two or more colors are employed, a means comprising an oscillatory drum and a Vrecprocating-.plate operated thereby for depressing one set of type-surfaces below the level of the remaining type, so that the latter may be inked independently of the former, substantially as herein described.

2. Ina chromatic-printing apparatus, the type-surface D, adapted to be depressed or raised, in combination with a drum upon the type-bed and lugs or projections which engage pins upon the drum, so as to partially rotate it, and through it cause the type to be depressed or to be elevated, substantially as herein described.

3. In a chromatic-printing apparatus, the reciprocating type-bed X, having type-surfaces D, which may be raised or depressed, as described, in combination with an inking. roller and a mechanism comprising the frame P and suitable levers operated by the reciprocating type-bed to depress said rollerso as to distribute ink upon the face of the type when passing beneath it, substantially as herein described.

4. In a chromatic-printing apparatus, a reciprocating form carrying type which may be be elevated or depressed, and a second set of xed type inked by suitable distributing-rollers, in combination with a framecarrying the inking-roller of the, first set of type land a mechanism by which it may be raised bythe passage of the ink-distributing table, so as to be out of contact with it, substantially as herein described. j

5. In a chromatic -printing apparatus in Which two or more colors are employed, a reciprocating bed carrying one set of type which may be elevated to and depressed below the level of a second set, a second set of type, and an ink-table, also carried by said b ed, a frame carrying an inking-roller for the first set of type,

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and mechanism, substantially as described,

- engaged by said bed in its passage, for depressing said roller into contact with the type,

In witness whereof We have hereunto set our hands.

FAIRFAX H. WHEELANz ALBERT SCHURCH.

Witnesses: V

S. H. NoURsn, H. C. LEE.

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