US252838A - henry - Google Patents

Description

(No Model.)

J. HENRY.

PRINTING PRESS.

Patented Jan.,24,188-2.

N. PEIERS. Photo-Lithographer, Wanhingim n.c,

2 Sheets-Sheet 1.

(No'ModeL) 2 Sheets-Sheet 2.

J. HENRY.

PRINTING PRESS. No. 252,838. Patenfied Jan. 24,1882.

l i g TNITED STATES PATENT ()FFICE.

JOHN HENRY, OF JERSEY CITY, NEW JERSEY, ASSIGNOR T0 CALVERT B. vOOT'IRELL, OF NEW YORK, N. Y.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 252,838, dated January 24, 1882.

Application filed July 30, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN HENRY, of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Cylinder Printing- Presses, of which the following isa specification, reference being had to the accompanying drawings, forming part of this specification.

fine part of my invention relates to the controlling of the operation of the delivery-griper bar and gripers, and for taking the printed sheets from the impression-cylinder in front of the feed-board and delivering them face upward on the receiving-table; and the object of this part of my invention is to insure to such griper-bar and gripers a greater steadiness and certainty of motion than have been obtained for such gripers as heretofore applied. This part of my invention consists in the combination, with the impression-cylinder and receiving-table arranged in front thereof, of stationary ways between said cylinder and table and delivery-gripers arranged in front of the cylinders, supported and guided by said ways and operating in their movements both toward and from the cylinder entirely independent of the bed. These ways may be so constructed and applied that portions ot'them may be raised and turned out of the way when the press is stopped, so that they will not interfere with the necessary manual operations of the pressman. This part of my invention also consists in the combination, with such gripers and stationary ways, of what are known as lazytongs, for producing an acceleration of the to-and-fro movement.

Another feature of my invention consists in a novel means of guiding the reciprocating type-bed, whereby lateral deviation from the proper or true line of reciprocating motion is prevented.

In the accompanying drawings, Figure l is a side elevation of those portions of a cylinderpress having a reciprocating bed which are necessary to illustrate my invention. Fig. 2 is a vertical sectional view in a plane parallel with 1, but on a larger scale, of portions of the cylinder and feed-board, showing also the flap of the feed-board and the straight-edged clamp and part of the stationary ways for guiding the delivery-gripers. Fig. 3 is a vertical sectional view parallel with Fig. 1, showing portions of the cylinder, the delivery-gripers, and parts of the said stationary ways and of the griper-operating mechanism. Fig.4 is a transverse section of one of the said stationary ways and a portion of the griper-operating mechanism. Fig. 5 is a plan of the straightedged sheet-clamp and its rock-shaft; and Fig. 6 is a transverse section of the type-bed and portions of the main framing of the press and the supports and guides for the said bed.

Similar letters of reference indicate corresponding parts in the several figures.

A is the main framing of the press. 0 is the impression-cylinder. D is the feed-board. E is the receiving-board, arranged at the opposite end of the press to the receiving-board, as in most other presses in which the printed sheet is taken from the front of the impression-cylinder.

The cylinder 0 is furnished with the usual gripers for taking the sheet from the feedboard; but these are not shown as not being directly involved in the invention.

The delivery-gripers to be employed in carrying out my invention may be of various constructions. I might, forinstance, use counterbalanced gripers like thosedescribedinLetters Patent No. 203,709, granted May 14, 1878, to Calvert B. Oottrell, or a modification thereof; but as my invention does not relate to the gripers themselves, I have taken no particular pains to represent them in detail, buthave 5 only shown in Fig. 3 thejaws a a, the bar or shaft 1), which carries them, and their counterbalance 0. This view also represents a portion of the lazy-tongs and the stationary ways 61 d, to show how the griper bar or shaft bis car- 0 ried and guided. In Fig.1 the gripers are concealed by the framing of the machine. The griper bar or shaft 1) is fitted to work in bearings in the rear ends of the two sets of lazytongs F F, the front ends of which are connected with fixed pins or studs 0, (see Fig. 1,) secured in the framing of the machine. The two sets oflazy-tongs are arranged one on each side of the machine.

The stationary ways (I d are represented as arranged horizontally; butthey might deviate somewhat from horizontal lines. There is one of said ways on each side of the framing of the machine, each being exactly oppositethe other. Their upper and lower surfaces are planed perfectly true, and are parallel with each other. The portions of the said ways farthest from the cylinder may constitute fixed portions of the side framing of the press; but the portions nearer the cylinder are represented as made separate and attached by hinges, as shown at f in Fig. 1, to the fixed portions, to permit of their being raised, as indicated by the arrow 12 in Fig. 1, and turned over onto the fixed portions and out of the way of the inking apparatus and the type-bed, to permit the neces sary manual operations of the pressman when the press is not in operation. The ends of the said hinged port-ions nearest the cylinder are supported, as shown at g g in Fig. 1, in or on suitable bearings on the main framing of the press. To guide the lazytongs F F in these ways, and so guide the delivery-griper shaft 1) and gripers'in their to-and-fro motion, the

' joint'pins' h h, by which the intersecting levers of the lazy-tongs are connected, are furnished, as shown in the transverse section, Fig. 4, with anti-friction rollers i, or slides, which fit accurately within the said ways. The said ways and the rollers or slides may be plain or grooved.

The necessary movement of the lazy-tongs to produce the to-and-fro movement of the delivery-griper shaft and gripers may be imparted to them by two eccentric cams, I, on the rotary shaft H, and two levers, J, one of the said cams and levers being shown in Fig. 1. The said lever works on fixed fulcrums j, secured in the main framing of the press. The lower ends of the said levers are connected with the said cams by rods K, which are slotted, as shown at l, to receive and run on fixed guidepins m. The upper ends of the said levers are connected with two of the opposite joint-pins, h, of the lazy-tongs, which are near the fixed pins orstuds c. This latter connection is shown in Fig. 1 as made with the'pins h of the second joint from the pins 0. The lazy tongs, being thus connected with the levers, produce an aecelerated to-and-fro movement of the deliverygripers as compared with the throw of the cam and movement of the levers, or, in other words, they produce a long to-and-fro movement of the gripers as compared with the throw ofthe cam. In this to-and-fro movement the gripers are guided by the stationary ways (I d.

The opening of the gripers to liberate the printed sheet when the latter is broughtto a suitable position over the receiving-board and the closing of the gripers to enable them to take the sheet from the cylinder at the termination of their movement toward the latter may be produced by any suitable meansas,

: forinstance, thosedescribed in the Letters Patent of O. B. Oottrell, hereinbefore referred to.

It will be observed that the gripers above described are detached from and operate independently of the bed.

In order to support the rear portion of the sheet as it is carried by the delivery-gripers operating and guided as above described,there may be provided between the ways d d an endless moving apron or series of tapes, Y Y, as shown in Fig. 2.

The forward'and-backward movementot the cylinder hereinabove mentioned might be produced in various ways. I propose, however, generally to produce the movement of the cylinder to the extent of one complete revolution by gearing it with the reciprocating type-bed in the manner ordinarily practiced in stopcylinder presses, and then to produce the continued movement in the direction of the arrow 13 shown upon it in Fig. 1 beyond the complete revolution, and the corresponding return movement by means'of a toothed sector-lever, L, (shown in Fig. 1,) gearing with teethjon the cylinder, the said sector-lever working on a fixed fulcrum, 7c, and .having the necessary backward and forward motion imparted to it by means of a cam, M, on the rotary shaft H, and a rod, N, connecting the said cam with the said lever, the cam being so constructed and the teeth j on the cylinder and corresponding teeth of the sector-lever being so arranged as to come into gear to produce the continued forward rotary motion of the cylinder beyond the complete revolution immediately after the rack on the type-bed ceases to act on the cylinder.

It is intended that the delivery-gripers shall take the sheet from the cylinder just as the latter has completed a revolution from the position from which it started, and that the portionof the rotary motion continued beyond this complete revolution shall be performed after the sheet has been taken by said gripers, so that while the said gripers are carryingthe front sheet away from the cylinder the rear portion of the sheet, still remaining close to the cylinder, shall at the same time be carried forward by the latter, which is moving at the same speed with the gripers, and hence the rear portion of the sheet will be relieved from friction on the cylinder,instead of being dragged over the surface of the latter, as in other stopcylinder presses with front delivery.

The construction of the front part of the feedboard in the form of a flap is represented in Fig. 2, where n is the said flap, made of a thin piece of steel or other metal plate, hinged to the main portion of the feed board by a hinge, 0, and adapted to so rest on a bearing, 12. provided on the said portion in front of the hinge, that it may almost touch the cylinder at the time of feeding. This flap, when thus resting, has its upper face flush with the feedboard, and, being very thin, enables the sheet to come very close to the cylinder as it is pushed forward over the said flap to be taken by the cylinder-gripers to be printed. As the cylinder brings the printed sheet round under the feed-board to the position to be taken by the delivery-gripers the said flap is slightly raised by one or more cam-projections, q, provided on the cylinder, or by one or more cams or their equivalents on the cylinder-shaft or other moving part of the press, which keep the said flap raised while the printed sheetis being drawn under the feed-board by the said gripers, and so prevents the said sheet from rubhing against the flap, which, it will be seen, forms the front edge of the feed-board.

1', Figs. 2 and 5, is the straight-edged clamp for clamping the sheet to the feed-board along the whole length of its front edge before its being taken therefrom by the cylinder-gripers. This clamp consists of a narrow plate of steel or other metal, like what is commonly known as a straigh t-edge, preferably having its under surface faced with a pad of soft leather, and it is attached by two or more arms, r r, to a' horizontal rock-shaft,'P, which is arranged across the press in bearings N, which may be upon the stationary framing A, but are shown in Figs. 1 and 2 as placed on the movable portions of the guides d d. The said rock-shaft P may be operated to press the clamp 1" upon the sheet on the feed-board and raise it therefrom by the means commonly employed in printin g-presses to operate a similarly arranged rock-shaft which carries a series of points for holding the sheet to the feed-board. The front edge of this straight-edged clamp 1' projects a trifle beyond or overlaps slightly the front edge of the feed-board, as shown in Fig. 2. As soon as the sheet to be printed is laid by the feeder against the stop-pins as, commonly provided to gage the line to which the sheet is to be laid, the said clamp r is brought down upon it and holds' it until just as the cylinder-gripers are closing upon the sheet, when the said clamp is raised to allow the said gripcrs to take it. v

The method of guiding the reciprocating type-bed whereby lateral deviation from a rectilinear motion is prevented is illustrated in the transverse section, Fig. 6, in which Q is the type bed, running on stationary horizontal ways R R, which are simply faced on their up.- per surfaces to form bearers for the said bed, which is correspondingly faced on its under side. Above the said ways R R the interiors of the sides of the main framing A A of the press are furnished with guiding-faces s s, which are placed to present true parallel vertical surfaces. Attached to the type-bed on each side are two or more vertical rollers, S S,

the journals of which have their bearings in yokes T T, which are secured in the sides of the bed Q in such manner as to be adjustable in a direction lateral to the bed, or toward or from the guiding-faces s s, by meansof screws 1? t on the said yokes and nuts an, fitted to the said screws and bearing against the sides of the bed. By adjusting these rollers properly against the faces 8 s the said rollers are made to form a means of guiding the bed, which, while having very little friction, insures aibsolutely against all deviation in a lateral direction from true right lines, and which provides by an outward adjustment of the rollers, when necessary, a means of compensating for such wear as might lead to such deviation.

It is obvious that, instead of the adjustable rollers being attached to the bed, the said rollers might be attached to the framing and the edges of the bed he planed parallel torun in contact with the said rollers.

Theinking apparatus above describedforms no part of this invention, but may be made the subject of another application for Letters Patent.

What I claim as my invention is-- 1. The combinatiomin aprinting-press,-with theimpression-eylinder and the receiving-table arranged in front thereof, of stationary waysbetween said cylinder and table and deliverygripers arranged in front of the cylinder, supported and guided by said ways, and operating in their movements both toward and from the cylinder entirely independent of the bed, substantially as herein described. I

2. The delivery-griper guiding-ways hinged to the press-frame, substantially as hereindescribed, whereby they are capable of being turned up 'or over, as and for the purpose herein set forth.

3. The combiiiation, substantially as herein described, with the delivery-gripers, of carriers composed of lazy-tongs attached to fixed studs or pins on the press-frame, and means, substantially as herein described, of operating the said lazy-tongs.

4. The combination, with the frame of the press, provided with sliding bearings and with vertical guiding faces 8 s, of the bed Q and the guide-rollers S S and their screw-threaded yokes and nuts, providing for theiradjustinent, substantially as and for the purpose herein described.

JOHN HENRY. Witnesses:

FREDK. HAYNES, JOHN BECKER.

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