US487386A - Island - Google Patents

Description

(No Model.) Z Shets-Sheet 1.

GLB. OOTTRELL. DELIVERY APPARATUS FOR PRINTING MACHINES.

No. 487,386. Patented Dec. 6, 1892.

(No Model.) 2 Sheets-Sh'eet 2.

C.B.GOTTRELL, DELIVERY APPARATUS FOR PRINTING MACHINES.

No. 487,386. Patented Dec. 6, 1892.

Uivrrnfo STATES rricn.

ATENT CALVERT B. COTTRELL, OF VVESTERLY, RHODE ISLAND.

SPECIFICATION forming part Of Letters Patent N0. 487,386, dated December 6, 1892.

Application filed October 2'7, 1891- Serial No. 409,970. (No model.)

-for Printing Machines, of which the following:

is a specification.

This invention relates to delivery apparatus comprising an endless delivery-carrier havlng grippers thereon for taking the printed sheets; and it especially relates to such delivery apparatus when applied to rotary print-j ing-Inachines, in which the paper to be printed is supplied to impression-cylinders from a roll or continuous .web and after having beenj printed is out into sheets.

The improvement consists, essentially, in

the combinations hereinafter described and claimed, with the endless delivery-carrier, of' means for taking the sheets from the grippers of said carrier and depositing them positively in a certain position on a receiving-table or other receptacle.

I will now describe my invention with reference to the drawings and afterward point.

out its novelty in claims.

Figure 1 represents a side elevation of the principal parts of a perfecting-machine embodying my invention. Fig. 2 isa plan view of the same. Fig. 3 is a vertical sectional view on a larger scale than Figs. 1 and 2, taken in the line :1; as of Fig. 2, representingthe delivery apparatus and a cutting apparatus by which the printed web is cut into sheets preparatory to being taken by the delivery appa Fig. t represents a transverse section corresponding with Fig. 3, taken in the line ratus.

y y of the latter figure and viewed from the Similar letters and numerals of reference designate corresponding parts in all the figures.

A is the main framing of the machine, con .taining the bearings for the cylinders B, C, D, and E, of which B is the first impression-cyL inder, C the first form-cylinder, D the second impression-cylinder, and E the second form-; cylinder, and all of which are geared together by gears 11 c d e to rotate in the direction of Figs 5 and 6 are detailed views which ,will be hereinafter referred to as parts of the delivery apparatus. nished with cutter-blades Z l.

the arrows which are shown near them. in Fig. 1, the whole deriving motion from the main shaft S of the machine through a gear S on the main shaft, gearing with a spur-gear d, as shown in Figs. 1 and 2.

F is the web of paper, supplied from a suitable roll (not shown) and passing down between the cylindersDland E and under the cylinder D to the delivery apparatus, which I will now proceed to describe.

On each side of the machine, supported at a a on the main framing A, are two side frames A i i, consisting each of two heads A, connected by parallel horizontal bars it", which constitute ways forthe endless carrier, which is represented as consisting of two endless toothed racks or chains G, with attached grippersj and it). The heads A of the said frames have secured in them studs 9 g'--0ne in each head A'forthe support of the wheels h h, which carry the said endless racks. The said endless racks are driven from the spurgear S on the main shaft S through gearing which will be presently described, so that their lower parts, which are nearly on the level with the bottom of the impression-cylinder D, running on the ways 2', travel in a direction away from the said cylinder. The grippers j and 7c, carried by the endless toothed racks, are presented transversely to the length of the racks for the purpose of taking hold of the said edges of the printed web after the latter has passed the cylinder D.

The endless carrier above described is in all essential particulars like that shown and described in my patent, No. 442,862, dated December 16, 1890, except that it is the lower horizontal run that is operative instead of the upper one, as in that patent.

H H represent two rotary cutterheads fur- These heads are mounted on shafts I I,supported in bearings A A erected upon the side frames A some distance in front of the carrying-wheels h. The height at which these shafts are re spectively supported in theirbearingsis such that the edges of the two cutter-blades will meet in their rotation about on a level with the web of paper which is being carried away from the cylinder D by the grippers j and k and will cut the web into sheets. It will be observed that the upper cutter-shaft I passes through the endless carrier and its cutters work Within the said carrier and the lower cutter-shaft I is below the endless carrier. The upper cutter-shaft I is furnished with a spur-gear 1 which is geared with and derives motion from the gear (1 on the shaft of the cylinder D through an intermediate gear S which runs on a fixed stud S secured on the main framing A, and the said gear I communicates motion to the lower cuttershaft 1 through a spur-gear H on the latter shaft, so that both cutter-shafts and their heads rotate at the same velocity, which is such thata pair of cutter-blades one on each cutter-headwill come into operation upon the web carried by the grippers jand 7c of the endless carrier at intervals corresponding with the length of the sheets to be cut. The lower cutter-shaft I carries two spur-gears 1 which gear with and drive the endless racks G at the same velocity as that of the surfaces of the several cylinders. The grippers of the seriesj, which 1 term the front grippers, are set on their respective chains at a distance apart in a direction lengthwise of the racks equal to the length of the sheets to be cut, and those of the series 70, which I term the rear grippers, are similarly arranged with respect to each other. Two opposite front grippersj and two opposite rear grippers 7c constitute a set for taking a sheet, the rear grippers being set at a distance behind the front ones somewhat less than the length of the sheet to be cut, so that the four grippers of a set hold the cut sheets near their four corners. The opening of these grippers j and it to take the web as it passes between the cylinderD and the cutters is effected by two stationary cams 9 which are firmly secured one to each of the fixed studs g, on which the carrying-wheels it turn. The opening of the front grippersjto let go the forward ends of the sheets is effected by means of two stationary cams 9 secured to the fixed studs g, on which the carrying-wheels it work. The opening of the rear grippers 7a to let go the rear ends of the sheets is effected by means of stationary cams g, which are secured to thelower ways 2" and project inward over the inner edges thereof, the several opening operations being produced by'the grippers passingin contact with the said stationary cams as they are carried along by the endless racks. Each pair of grippers is provided with a closing-spring 'm,

bywhich its jaws are kept closed.

The grippers and 70, as shown in Fig. 4,

.are substantially like those illustrated and will be understood by reference to Figs. 3 and 4, are shorter than the heels 8 9 of the movable members of the rear grippers 7c in order that the front grippers may be opened by the cams g 9 but will pass the cams g without opening, and that the rear grippers It may be opened by the cams g and g as they pass by them. It will be seen on reference to Fig. 3 that the cams g are so much farther from the line of travel of the grippers than the cams 9 that their short heels 8, though within range of the cams g 9 will not reach the earns 9 but the elongated portions 9 of the heels of the rear grippers will reach the said cams 9 while the portions 8 of the said heels are in range with the camsg The faces of the cams g are, as may be understood by reference to Fig. 3, deep enough to take in both the heels 8 of the front grippers jand those 9 of the rear grippers k, so that both series of grippers may be opened in passing the said cams 9 It is intended that the printed sheets delivered by the grippers of the endless chains should be deposited upon any suitable receptacle. In the example represented this receptacle is simply a receiving-table T, at the rear end of which is a stationary upright gageboard T. The said table is supported on geared levers T Fig. 3, and is provided with the ordinary means of adjusting its height from time to time, so that the last sheet deposited upon it will always be at about the same level or distance below the endless carrier; but of whatever. kind this receptacle may be it is desirable that the said sheets shall be deposited positively upon it always in thesame horizontal position,which could not beeffeeted by simply allowing them to drop upon it from the open grippers. I will now proceed to describe the means for this positive deposit of the sheets, which constitute the most essential part of my invention, and consist of a set of grippers 0 0, which are best shown in Figs. 3, 4, and 6, but also shown in Figs. 1 and 2. The said grippers 0 0', which may be termed the depositing-grippers and which have their points presented in a forward direction and are intended to take hold of the rear or tail ends of the sheets, are carried by a longitudinal rock-shaft J, situated at a suitable distance below the endless carrier behind the gage-bard T of the receiving-table and in front of the lower cutter-shaft I, the said rock-shaft being arranged transversely to the machine in suitable fixed bearings in the side frameA thereof. On this rook-shaft are secured two forwardlyprojecting arms J, in the ends of which are bearings for a second rock-shaft J on which are firmly secured two upwardly-projecting arms J in the upper parts of which are supported the two gripper-bars an, which carry the several grippers 0 0. The lower memthe said arms.

IIO

to it in a well-known manner a spring p, (see Fig. 4,) which always exerts a tendency to close the grippers.

The depositinggrippers 0 0' have besides their opening and closing movement both an upward-anddownward movement andabackward-and -forward movement between the racks G and grippers of the endless carrier, the backward-and-forward movement being due to the rocking of the shaft J in the arms J of the shaft J and their upward-and-downward movement being due to the rocking of the shaft J in its stationary bearings. These movements are produced by two cams K L on a short shaft M, which works in a hearing M on one of the side frames and which is furnished with a spur-gear M through which it derives motion from a spur-gear J on the lower cutter-shaft 1. The cam K produces the oscillation of the rock-shaft J and the upward-and-downward movement of the rock-shaft J and its arms J and grippers 0 0 by means of a yoke-rod g, which connects said cam with one of the arms J. The cam L produces the backward and forward swinging movement of the said arms J and grippers 0 o by means of a yoke-rod '1", which connects the said cam with an arm r on the rock-shaft J the said arm r being represented in Fig. 3 as made in the same piece with one of the arms J It may be understood by reference to Figs. 3, 5, and 6 that the rock-shaft J 2 and its arms J 3 and r constitute one lever for producing a backward-and-forward movement of the depositing-grippers 0 0 between the cutters and the delivery-board and that the rock-shaft J and its arms J constitute another lever by which an upward-and-downward movement of the said grippers 0 o is produced. To effect the opening and closing of the depositing-grippers 0 0 at the proper time to take the sheet from the carrier-grippers and deposit it on the table T, the bar n of the upper members 0 is furnished with an arm n carrying a small antifriction-roller, which is brought during the above-described movements of the said grippers with the arms J 3 into contact successively with two stationary cams s 8, (see Figs. 3, 4E, and 6,) secured to the inside of the side framing of the machine,the -cam 8 serving for the opening of the grippers to take the sheets and .5" serving to open the grippers for depositing the sheets on the table T. This arm n and these cams s s are representedin Fig. 4 as duplicated on the two sides of the machine.

The above-described movements of the arms J and the depositing-grippers 0 o are so timed that the said grippers rise with their points just behind the cuts which have been made in the web to divide the sheets, and the said grippers, having then been opened by the cam s, sufficiently lift the head of each sheet as it comes along to allow them to take hold of the tail end of the sheet next in front which is ready to be delivered, the said grippers then moving forward faster than the web and sheets to receive within them the said tail end before the side edges of said sheet are released by the grippers of the endless carrier. The speed of the said forward movement of the depositing-grippers is then reduced to that of the endless carrier and the sheet and the said grippers close. The carrier-grippers then release the sheet and the depositing-grippers take its tail end over the gage-board T and then downward toward the top of the pile on the receiving-table T, then move slightly backward toward the gageboard T, against which they bring the sheet just at the moment when they are again opened by the cam s. The tail end of the sheet is thus deposited positively in a determined position on the table and the forward .end or head of the sheet naturally drops into a corresponding position.

The movement which is given to the depositing-grippers by the cams K L is illustrated in Fig. 6 by the line 10, which indicates the path of the point of the lower gripper n. Fig. 3 shows the position of the grippers when they have just closed upon the tail end of the sheet in the endless carrier, and Fig. 5 shows the position of the cam K and the relation of the depositinggrippcrs to the cams s s, corresponding with Fig. 5. Fig. 6 shows the position of the arms J and J and the depositing-grippers and the relation of the latter to the cams s s at the time of depositing the sheet on the pile. It will be understood that throughout this movement of the depositinggrippers the points of the said grippers are always presented in the forward direction in which they take and deposit the sheets.

In order to prevent the backward movement of the depositing-grippers from being interfered with by the upper edge of the gageboard T, which must necessarily project above the top of the pile of sheets on the table T, the said board has notches or openings tent in its upper edge, as shown in Figs. 3 and 4C, for the said grippers to pass through, and in order to retain the sheets in place after they have been deposited on the receivingtable there are two or more upright pins 15 inserted in the said table at said points.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination,in a printing-machine, of an endless carrier having grippers at its sides for taking hold of the sides of a web, a cutter for cutting the web into sheets in said carrier,a receptacle for the cut sheets, depositing-grippers and levers for carrying the same with their points in a forward direction, rotary cams for operating said levers to give the said depositing-grippersabackward-andforward motion and an upward-and-downward motion, the said levers and earns being arranged in front of the cutters and behind said receptacle, stationary cams for opening the grippers of the carrier, and stationary cams for opening said depositing-grippers, substantially as herein described.

2. The mechanism for operating the depositing-grippers 0 0, consisting of the combination of the swinging arms J carrying said grippers, the rock-shaft J carrying said arms J the rock-shaft J, having fixed bearings and having arms J for carrying the rockshaft J the rotary cams K L and their conto nections with said arms J and rook-shaft J for operating the said arms J and the stationary cams s s for opening said grippers,

all substantially as herein setforth.

OALVERT B. OOTTRELL. Witnesses:

CHAS. P. C TTRELL, A. R. STILLMAN.

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