US642805A - Printing-machine and delivery apparatus therefor. - Google Patents

Description

No. 642,805. Patented'Feb. 6, I900.

' W. SCOTT.

PRINTING MACHINE AND DELIVERY APPARATUS THEREFOR.

(Application filed Oct. 10, 1396. 0 M m 5 Sheets-Sheet l.

WITNESSES: INV NTOR:

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No. 642,805. Patented Feb. 6, I900. W. SCOTT.

PRINTINGMACHINE AND DELIVERY APPARATUS THEREFOR.

(Application filed. Oct. 10, 1896.)

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WITNESSES: INVEN OR: Z if M By his Azzomeyd Mm 4 4 W No. 642,805. Patented Feb. 6, I900. W. SCOTT.

PRINTING MACHINE AND DELIVERY APPARATUS THEREFOR.

(Application filed Oct. 10, 1896.)

5 Sheets-Sheet 3,

(No Model.)

WITNESSES:

THE NORRIS PETERS cu, mofouma. wasumoron. u. c,

No. 642,805. Patented Feb. 6, I900.

W. SCOTT. I PRINTING MACHINE AND DELIVERY APPARATUS THEREFOR. (Appli cation filed Oct. 10, 1896.)

(No Model.) I 5'Sheets-Sheet 4.

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WITNESSES: INVENTOR:

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No. 642,805. Patented Feb. 6, I900.

W. SCOTT.

PRINTING MACHINE AND DELIVERY APPARATUS THEREFOR.

(Application filed Oct. 10, 1898.)

(No Model.) 5 Sheets-Sheet 5.

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m 1 0 o "8 "Q m "t@ R g m R a q a o I I w I 1 Q g I e s WITNESSES: INVE NTOR: B Attowzi THE mums vzrzns cu. vgIoTaumu, WASHINGTON w. c.

UNITED STATES ATENT OFFICE.

-- WVALTER SCOTT, OF PLAINFIELD, NE\V JERSEY.

PRINTING-MACHINE AND DELIVERY APPARATUS THEREFOR.

SPECIFICATION forming part of Letters Patent No. 642,805, dated February 6, 1900. Application filed October 10, 1896. Serial No. 608,431. (No model.)

T0 to whom it may concern:

Be it known that I, WALTER SCOTT, a citizen of the United States, and a resident of Plainfield, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Printing-Machines and Delivery Apparatus Therefor, of which the following is a specification.

This invention has relation to the delivery mechanism of cylinder printing-presses and to the improvement of the general operation of such machines, an object being the delivery of the printed sheets with their freshly-' printed sides uppermost on the delivery-board or other receiver. Another object is the uniform inking of the forms, and another object is the carrying of a two-revolution stop-cylinder over from the first to the second revolution thereof, and other objects, as will hereinafter appear. 7

To these ends the invention consists of cornbinations of devices hereinafter described, and more particularly pointed out in the claims concluding this specification.

The preferred form of the invention is illustrated in the accompanying drawings, (four sheets,) forming part hereof, in which- Figure 1 is a side elevation showing the cylinder, part of the bed and its rack, and the delivery apparatus. Fig. 2 is a plan View of the parts shown in Fig. 1. Fig. 3 is an enlarged plan view of the gripper-operating mechanism shown in Figs. 1 and 2. Fig. 4 is an enlarged side elevation of the same mechanism. Fig. 5 is a sectional view-in the direction of the arrows on the plane indicated in Fig. 4 by theline 5 5. Fig. 6 is alike view in the direction of the arrows on the plane indicated in Fig. 4 by the line 6 6. Fig. 7 is a side elevation of the mutilated cylinderdriving gear and a portion of the bed-rack. Fig. 8 includes a like View, but with the se ments of a gear and a rack for continuing a two-revolution cylinder over from the first to the second revolution thereof and an edge view of the same. Fig. 9 is a vertical longitudinal view, partly in section and looking downwardly in Fig. 2.

Referring to Figs. 1 to 6, inclusive, the reference F marks any suitable framework provided with suitable bearings and guides for the moving parts of the machine. The impression-cylinder G has its shaft journaled insuitable blocks or boxes 2, which are slidable upon the vertical guides 3 on the framework F. Depending from the boxes 2 and within the guides 3 are the rods 4, whose lower ends are joined by the journal-box 5 for the shaft 5, forming the lower (movable) end of the toggle 6, whose upper (fixed) end is adjust-ably attached to the fixed frame F, as by the slide-block 7 vand adjusting-screw 8, as will be understood. The toggle 6 is operated at proper times by the link or rod 9 from a cam (not shown) or other suitable part of the mechanism to force the rods 4, box 2, and'cylinder O downward against the force of the spring 10, which bears against the end of bars 4 or box 2 and against the frame F, oraplate 11, adjustable up and down by means of the screw 12 and the spring 10. It is understood, of course, that the toggle mechanism 6 7 8, the spring 10, plate 11, and screw 12 are duplicated at each side-that is, these are to be found at each end of cylinder Oand that the shaft 5 extends across the machine, being journaled at each end in boxes 5.

The cylinder 0 is provided with the mutilated gear 13, with which the bed-rack R meshes at times to drive the cylinder.

Concerning the printing mechanism, it may be observed that my invention (which is yet to be described) may be used in connection with several forms thereof. Thus in Fig. 1 the impression-cylinder of the machine shown makes two revolutions during the printing stroke of the bed, though taking but one impression from the form while so revolving,

and is at rest during the return or non-printing stroke of the bed. The cylinder-driving mechanism is or may be of the kind shown in my Letters Patent granted the 3d day of O0- tober, 1893, and numbered 505,961. In fact, such mechanism is indicated in Fig. 1. The use of my invention in conjunction with other forms of printing mechanisms will be indicated hereinafter as the description of my invention progresses. The sheets are fed to the cylinder 0 in any suitable way, as by hand, from the feed-board B, gages g being employed in the well-known manner to regulate the placing of the sheets for the grippers 14 of the cylinder 0. The grippers 14 are operated by suitable means, (not shown as follows: Then the bed T is at the limit of its stroke to the left in Fig. 1, the cylinder 0 is in the position shown in said figure. The cylinder O is caused by suitable means (such as set forth in my patent aforesaid) to rotate until gear 13 is in mesh with racks B, after which the cylinder 0 is caused to finish two revolutionsthat is, assumes the posit-ion shown in Fig. 1-when it is brought to rest, as will be understood from my aforesaid patent. During the rotation of the cylinder 0 the following operations occur: A sheet is taken from the board 13 by the grippers 14, which retain the sheet until they approach the guides 15 during the second revolution of the cylinder, when they open and release the sheets, which are lifted from the cylinder 0 by the lifting-fingers 16 onto the said guides and are run out on tapes 15 or between sets of tapes t 6 during the remainder of the second revolution of the cylinder 0. The tapes t t run on suitable rollers or pulleys p19 whose shafts are journaled in the frame F. The tapes f may be omitted altogether. The sheets are printed upon by one or more forms on the bed T. For instance, there may be two forms placed side by side across the wid th of the bed and the sheet be split into two by a suitable slitter, as s, as it is run out by the tapes 15 9. Other arrangements of forms will suggest themselves to users of the machine. The tapes t t are driven by suitable gearing from a moving part of the machine, as by the gear 18 meshing with gear 13 and the segment-rack thereon. (See Fig. 8.)

Referringto Figs. 2, 3, and 4, the reference a marks the traveling roller, to which one end of the set of tapes t is fastened. The other ends of these tapes 25 are attached to the framework F, preferably by means of springs 19, separately connecting each tape i with the bar 20, which crosses the machine. This bar 20 may be fixed to the frame or it may itself be attached thereto by means of springs 21, so as to be movable relatively thereto, as indicated in Fig. 2. The use of springs tends to keep the tapes f tautduring the operation of the machine. The shaft b of the roller (or pulleys) a is journaled to the arms 22, which are bolted or otherwise attached to the racks 0 (one at each side of the machine) and carries the gear cl. This gear (1, which is fast to shaft 17, meshes in a fixed rack 23, which is attached to or forms part of the framework F. The racks c mesh with the gears 24, which are on the horizontal shaft 25, extending across the machine. At one end the shaft is provided with a bevel gear 26, with which a like gear 27 meshes, such gear27 being on the vertical shaft 28 at that side of the machine. The shaft 28 is driven by means of the to-and-fro-moving rack 29, which isin mesh with the gear or pinion 30 on said shaft.

- The rack 29 is suitably moved to and fro, as

by the rod 31, which is operated by means of a crank-pin or cam, (neither shown,) as will be understood. The oscillatory motion thus given the shaft 28 is communicated to the shaft 25, and the racks c are caused to move excursively by the described gearing. During such excursive motions of the rack c the traveling roller a unwinds and winds the tapes 15 It will be understood that the tapes t exert no feeding or pulling action on the sheets they assist in delivering, but that their function is to support the sheets (which are run out on them face or freshly-printed side up) as they are fed forward by the tapes '15 t the unwinding of tapes t keeping pace with the forward motion of the sheets. The delivery action of tapes t i may be assisted by means of the grippers now to be described. A shaft 32 is fixed in the racks c or arms 22 and has fixed to it the curved fingers 33, which extend upwardly into the plane of the sheets coming from tapes :5 i Another shaft 34 is journaledin said arms 22 and has fixed to it the gripper-fingers 35 opposite and in position to coact with fingers 33 to grip and hold sheets. A spring 36, coiled about shaft 34, is fast at one end to the shaft and at the other end to a pin 37 on arm 22, the action of said spring being to hold the grippers 35 against fingers The shaft 34 is provided with an arm 38 and with the shouldered collar 3.), both fast thereto. A shaft40 is journaled in that arm 22 nearest the arm 38 and is provided with the detent 41 and arm 42 at opposite sides of the arm 22. The arm 42 has a pin 43 projecting horizontally therefrom, and a spring 44, fast to arm 22, presses against detent 41 in such wise that the detent rests against the collar 39. The fixed frame F is provided with a pin, lug, or projection 45 in the path of the pin 43, above named, for a purpose hereinafter to be described. At the end of the frame F is a fixed cam or incline 46 for coaction with arm 38 or an antifriction-roller thereon to depress said arm and so raise or open the grippers 35 against the force of spring 36 until the detent 41 drops in behind the shoulder of collar 39 and so holds the grippers open, (see dotted-line position at the left of Fig. 4,) and this releases the sheets. These grippers 35 are closed, as hereinafter described. Other means for operating these grippers may be used.

In order to accurately control the positions of the sheets relatively to the grippers 35 as the sheets are fed forward by the tapes '6 F, I may provide steps or gages 46, which are borne by the shaft 47, journaled in the frame F, (see Fig. 1,) and operate them as follows: A pull-spring 48 is fast at one end to an arm 49, fast on shaft 47, and at the other to frame F or bar 20, as the case may be, thus tending to hold down the stops 46. A lever 50, pivoted in the frame F, is connected by a rod 51 with arm 49 of shaft 47, said rod being pivotally attached to both. A latch or trig ger 52 is pivoted to an arm of frame F and extends into the path of lever 50, being upheld by a spring 53. This latch 52 has a slanting upper surface for a purpose herein- IIO after set forth. These parts (49 50 51 52 53) are all at one side of the machine, and the rack-bar c at the same side is provided with a pin or antifriction-roller 54 at or near its inner end, while at its outer end it is 'provided with the arm 55, which extends into a position permitting it to strike the end of lever 50. (See Figs. 1, 3, 4, and 6.) \Vhenever the parts are in the positions shown in full lines in Figs. 1 and 4, the stops 46 are raised, and when pin 54 rides on top of the slanting surface of latch 52, as in Fig. 4, the stops 46 fall into the path of a sheet coming from the tapes t t and stop the same.

The delivery-board D is suit-ably supported in the frame F above the shaft 25 and is provided with pivoted and weighted end pieces 56.

The operation of the parts is as follows: The positions of the parts shown in Fig. lare those they assume at the end of a printing stroke of the bed T. The cylinder 0 is in its raised position, and the sheet last imprinted rests between the tapes t t and onto the tapes t and is caught by the grippers 35. During the return stroke of the bed the rack 29 is moving toward the right in Fig. 1, and by the described gearing connecting it with rack c the latter and connected parts are moved to the left in Fig. 1. The motion of the rack c to the left in Fig. 1 causes the rotation of the traveling roller a by the fixed rack 23 to unwind the tapes t therefrom, thus affording a support to the sheet which is being drawn out by the grippers 35 between the tapes H (The latter tapes I? act as guides and may be replaced thereby, as will be understood.) By the time the bed T has reached the limit of its motion to the left in Fig. 1 the arm 38 will have been depressed by the cam 46 and the grippers 35 opened and locked in that position. (See dotted-line positions of the gripper mechanism at the left of Fig. 4.) As the parts are shown in the drawings they are so timed that the motions of the bed T and rack 29 synchronize as to stopping and starting, though, of course, this is. not essential. When the bed T begins the printing stroke,

the cylinder 0 is lowered to bring its gear 13 into mesh with the rack R on the bed and at the same time the cylinder 0 is started to rotate by the starting-arm 100, which engages a tooth on the cylinder, as will be readily understood from my aforesaid patent. The sheets are fed from the board B to the grippers 14 while cylinder 0 is at rest. During the printing stroke of the bed the cylinder 0 makes two revolutions, being carried over from the first to the second revolution by the means shown in my aforesaid patent or in other suitable ways, as by the means shown in Figs. 7 and 8. The cylinder 0 is raised immediately after the impression is taken, so as to clear the ink-table upon bed T, though the gear on the cylinder is not raised out of mesh with the rack on the bed. As the grippers 14 of the cylinder 0 approach or pass the guides 15 duringthe second revolution of the cylinder, they are opened in any suitable way, and the head of the sheet is elevated from the impression-cylinder by the elevating-fingers 16 and directed upon the guides 15 in a well-known manner, the presing the rack O and connected parts are moved toward the right in said figure and the tapes i are wound upon the roller (01' pulleys) (1, thus running from under the sheet, which drops gradually upon the board D, with the freshly-printed side upward.

In case the stop-ii ngers 46 are employed to stop the sheet fed forward by the tapes if they are operated as follows: During the motion of the rack c to the left in Fig. 1 the pin 54, attached to said rack, comes in contact with the upper inclined surface of the latch 52 and depresses the same, as shown by the brokenline position of said latch in Fig. 4, thus releasing the lever 50. The spring 48 thereupon throws the stop-fingers 46 downward from their position shown in Fig. 1 into the path of the advancing sheet. The lever 50 assumes the position shown in dotted lines in Fig. 4. During the return of the rack c to the position shown in Fig. l and at the end of its motion its arm 55 comes in cont-act with the lever 50 and moves it into the position shown in full lines in Figs. 1, 3, and 5, and through the described connections raises the fingers 46 to the positions shown in Fig. 1, where they are out of the way of the sheet lying on tapes 25. As the rack c completes its motion toward the right in Fig. 1 the pin 43 strikes the lug 45 and releases the grippers 35 from the control of arm 41, whereupon the spring 36 throws the grippers down to the position shown in Figs. 4 and 5 to cause them to grip the sheet lying on tapes i The springs 19 prevent sag of the tapes t as they are unwound from the traveling roller a. In case the springs 21 are used they also aid in this operation, or they may be used solely and the springs 19 be dispensed with.

In the arrangement shown in Figs. 7 and 8 the gear 13 on the cylinder 0 is cut away or mutilated at that part thereof which lies opposite the rack R when the cylinder 0 is at rest. There is a toothed segment 150 fixed to the face or side of gear 13 opposite the mutilated portion thereof, and the rack R has fixed thereto at its middle portion a rack-segment 151 for coaction with the segment 150. By preference the teeth of segment 150 are shorter than the teeth on gear 13 and the teeth of rack-segment 151 are shorter than the teeth of rack R, as this permits of a shorter lift to the cylinder 0 to clear the rack-segment 151 during the return stroke of the bed.

The inking-rollers I I are placed at opposite sides of the cylinder 0 and coact with the form on the bed T and the ink-table commonly found on such beds. The stroke of the bed is such that the form is inked from one end thereof by the rollers I and from the other end by the rollers 1 thus causing uniform inking thereof.

In case the machine is printing two copies on one sheet a suitable slitter may be employed to split the sheets as they are delivered from the cylinder 0. In case these copies are so long that they do not clear the slitter before cylinder 0 ceases to rotate the grippers 35 and the frame carrying them should not begin their motion toward the delivery-board until the cylinder C again begins to rotate. This may be secured bya suitable timing of the parts or mechanism.

Many changes in details and parts of combinations and substitutions of equivalents may be made without departing from the spirit of this invention, which is not limited to the precise form thereof shown in the drawings and hereinbefore described.

What is claimed is- 1. In a sheet-delivery for printing-presses, the combination with a delivery for receiving the sheets, of a frame moving to and fro on the main framework, a gripper mechanism carried by said moving frame, an extensible collapsible sheet-support connected at one end to the main framework of the machine and to the said movable frame at the other end, and mechanism for delivering sheets to said gripper mechanism, substantially as described.

2. In a sheet-delivery for printing-presses, the combination with a delivery for receiving the sheets, of a frame moving to and fro on the main framework, a gripper mechanism carried by said moving frame, discontinuous tapes or equivalent connected at one end to the fixed frame of the machine and at the other end to said moving frame, and mechanism for delivering sheets to said gripper mechanism, substantially as described.

3. In a sheet-delivery for printing-presses, the combination with a delivery for receiving the sheets, of a frame moving to and fro on the main frame, a gripper mechanism carried by said moving frame, discontinuous tapes connected at one end to the main frame of the machine, a roller carried by said moving frame and to which the other ends of said tapes are fast, and mechanism for delivering sheets to said gripper mechanism, substantially as described.

4:. In a sheet-delivery, the combination of a reciprocating frame, grippers carried by said frame for drawing out the sheets, a roller on said frame, a pinion on said roller, discontinuous tapes fast at one end to the said roller and secured at their other end to the fixed framework of the machine, a fixed rack on the frame of the machine meshing with the said pinion on the said roller, and a receivingboard to which the sheets are delivered by the said roller, substantially as described.

5. In a sheet-delivery, the combination of a to-and-fro-moving frame on the fixed framework of the machine, grippers borne by said movable frame to draw outthe sheets, a roller journaled on said movable frame, a pinion on said roller, sheet-supports fast at one end to the said roller, and a spring or springs securing the other end of said sheet-supports to the fixed frame of the machine; a rack fixed on the framework of the machine meshing with the said pinion on said roller, and a receiv ing-bed to which the sheets are delivered by said roller, substantially as described.

6. In a sheet-delivery,a delivery-roller moving to and fro and revolved positively in opposite directions as it so moves, a sheet-support, as tapes, fast at one end to said roller, and a spring or springs connecting the other end of the said support with the fixed framework of the machine, all in combination, substantially as described.

7. In a printing-machine, the combination of the impression-cylinder O, the mutilated gear 13 thereon, a gear-segment 150 opposite the mutilated portion of said gear 13, the form-bed, a rack R on said form-bed for coaction with said gear 13, a rack-segment 151 on the bed for coaetionwith gear-segment150, the teeth 'of said segments 150 and 151 being of less depth than the teeth of the rack R and gear 13, and mechanism for raising and lowering the impression-cylinder, substantially as described.

Signed at New York, in the county of New York and State of New York, this 8th day of October, A. D. 1896.

WALTER SCOTT. lVitnesses:

RICHARD W. BARKLEY, CHAS. A. BRODEK.

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