US313864A - haelow - Google Patents

Description

(ModeL) 3 Sheets-Sheet 1.,

L. HARLOW & G. PARKER. MECHANISM FOR LAYING OPP SHEETS FROM A PAPER CUTTER.

No. 313,864. Patented Mar. 17, 188-5.

wmiiil Iii.

(MoaeL) 3 SheetsSheet 53.,

L. HARLOW & G. PARKER.

MECHANISM FOR LAYING OFF SHEETS FROM A PAPER CUTTER. No. 313,864. Patented Mar. 17, 1885.

mun m Ill V h I NITED STATES PATENT FFlCE;

LUGIUS HARLOW AND GUSTAVUS PARKER, OF HOLYOKE, MASS.

MECHANISM FOR LAYlNG OFF SHEETS FROM A PAPER-CUTTER.

SPECIFICATION forming part of Letters Patent No. 313,864, dated March 17, 1885.

Application filed August 28, 1882. (Modem To all whom it may concern:

Be it known that we, LUGIUS HARLOW and GUSTAVUS PARKER, both of Holyoke, Hampden county, Massachusetts, have invented a new and useful Improvement in Mechanisms for Laying off Sheets from a Paper-0utter, of which the following is a specification, reference being had to the accompanying drawings, which are hereby made part thereof.

This invention has relation to improved means for receiving paper in sheet form from mechanism adapted to manipulate said paper while in a web form, and to sever said web into sheets, so that the mechanism herein described may receive, conduct, and lay off the sheets one by one upon each other in a uniform regular pile; and the invention consists in certain features of construction hereinafter described, and specifically set forth in the claims.

Referring to the drawings, Figure 1 is a side elevation of a paper-piling machine constructed in accordance with our invention. Fig. 2 is a substantially central vertical section of Fig. 1. Figs. 3 and 4 are details of detached portions, the former being a perspective view of the under side of the gripping mechanism.

Like letters indicate like parts in all the figures.

A A represent rotary transverse cutters of usual construction, to which a Web of paper is guided by any suitable means from any mechanism-such as the drying-rolls of a Fourdrinier machineand by which said web is severed into sheets of a length equal to the circumference of one of the rolls. If desired,any well-known reciprocating or other transverse cutting mechanism may be substituted for the rolls A A, the requisite being that the web shall be severed into sheets of desired length and the leading end of each sheetbe delivered to and between the tapesB B The tapes B are arranged about a driving-roll, O, and guide-rolls B,B B B B and B, and against roll B. The tapes B are arranged about the roll 0, 13, 13 ,13 B B B, and B, so that the sheets are passed from the rolls A between the lower one thereof and the roll 1? into the bite of the tapes, which occurs at the roll B,

beneath the roll B upward and over the roll B, and from thence downward to and between the rolls B 13 into a wedge-shaped guide or chute, D.

It is understood, of course as is usual in tape-guiding mechanism, that there are two series of endless tapes arranged about the rolls, as described, and each series comprises two or more of said tapes, arranged parallel with each other upon the rolls, the upper and lower series, B and B being arranged to run in contact with each other during a portion of their C0l11S8--Il2LII1Bly, that portion taken by the paper, as described. Within the framework E, which supports these rolls, may be arranged two sliding blocks, E Eflwhich serve as bearings for the rolls B B and B which blocks are also connected with adjustingscrews E Ff in such manner that the blocks and the rolls mounted thereon may be moved toward and from each other for the purpose of regulating the tension of the tapes. For instance, by raising the block E the series of tapes B are tightened, and by lowering the block E the series of tapes B are tightened, and in each of these movements of the separate blocks both series are in a measure affected in their tension-that is to say, if the block E alone be lowered both series of tapes are tightened.

As is usual, the cutters A are geared to each other, and in order to give the same surface speed or motion to the tapes the roll 0 is provided with a gear, 0, which meshes with the intermediate gear, 0*, and this with another intermediate gear, 0 which meshes with the gear on the lower cutting-roll, and said roll C is thus made to positively revolve and give motion to the tapes. (See dotted lines, Fig. 2.)

F represents the receiving-table upon which the severed sheets are piled, and it is mounted upon four vertical screws, F, one at or near each corner of the table. These screws are mounted upon beams F which constitute the frame-work or" the table. Each of the screws F (see Fig. 4) is provided with a pinion, F,which is adapted to mesh with a worm, F mounted upon a shaft, F running along the side of the frame-work. A similar shaft is arranged on the opposite side of the table, and a countershaft, F, provided with bevelgears F which mesh with similar gears, F arranged on the worm-shafts F is extended from side to side of. the machine, so that when motion is given to said counter-shaft it is conveyed to both of the worm-shafts F and to the screws F, in order that the table F may be gradually depressed in position in proportion to the quantity of paper laid thereon, such depression being intermittently produced by means of a ratchet, G, mounted upon the shaft F and operated by a pawl, G, (see Fig. 1,) pivotally secured to an oscillating lever, G", which is pivotally mounted upon the framework E, as at G and which is oscillated upon its pivot by means of a connecting-rod, G, connected with the disk G mounted upon the shaft of the lower cutting-roll A, so that at each revolution the pawl G is made to take a tooth in the ratchet G and to revolve the ratchet and the shaft F, with its gears Flt-he intermeshing gears F and the worm-shafts and screws adistancedepending upon the distance apart of the teeth of the ratchet G. It isapparent that in. the revolution of the disk the pawl is advanced a certain distance over the ratchet, and is. returned a like distance when it revolves the ratchet. The upper end. of the lever G is provided witha connecting-rod, H, and this rod is pivotally secured to a swinging frame, H',depending from a shaft, H pivoted in standards H secured at opposite sides of the table. Thelower ends of the frame H terminate in rods H which work loosely in slots or openings passing vertically through a reciprocating gripper-bar, I. Y I

At each side of the frame-work of the table portion of the machine, and extending from endto end thereof, is arranged a guide-rod, I, upon which the gripperbar slides. These guide-rods are arranged parallel with the surface of the table. The gripper-bar is provided with grippers 1 which project from a rockshaft, I, mounted in bearings I, secured to thelower surface of the barI. A coiled spring, 1 has one end secured to the shaft, and the opposite end secured to the lower surface of the bar, in order that when the grippers I are separated from the lower surface of the bar by partially rotating the shaft 1 said spring may be the means for automatically returning the grippersto a position of contact with the bar. The means for opening and closing the grippers comprise two arms, I 1 projectingfrom the shaft 1 at substantially a right angle'to each other, the former being projected vertically and downwardly from the shaft. In the movement of the gripper-bar I toward the receiving end of the tablethat is,toward the guide-chute D-the arm 1 comes in contact with a latch, J, (see Fig. 2,) pivoted at J to a fixed part of the frame-work, and having an extension, J which prevents a movement of the portion J toward the chute D, the construction being such, however, as to permit a movement of said portion J in a direction from the receiving-chute, so that as the gripper-bar approaches the receivingchute the arm 1 comes in contact with the portion J, and the the leading end of the sheet as it is projected through the chute. In passing completely over the latch J the spring quickly closes the grippers upon the slieet, whereby it is retained by the gripper-bar. Depending from the cross-shaft K, in the swinging frame H, is a rod, K, which passes through a slot formed in the edge of the gripper-bar, and projects below said bar, so that when thegrippers close upon the sheet the lower portion of said rod K is in front of the edge of the sheet held by the grippers. From the same shaft, K, is a second rod, Kiwhich projects at adifferent angle from the shaft than does the rod K, and so as to come in contact with the lever L, which projects from the gripper-shaft I As the gripper-bar approaches the end of the table opposite the chute D, the arm I rides the incline of a cam, M, fixed to the framework, so that the shaft 1 is oscillated against the tension of the spring to open the grippers I'". As the bar I finishes its movement, the rod K through gravity remains stationary, and, being against the edge of the sheet, positively prevents a retention of the sheet between the grippers and the gripper-bar. At the commencementof the return movement of the bar thelever Lcomes in contact with the arm K and moves the rod K a short distance in the opposite direction to that in which the bar is moving. so as to completely lay the end of the sheet which has just been delivered from the grippers. In this instance wehave shown but a single rod K, and it is clear that two or more may be used for the efficient delivery and lay ing of the leading end of the sheet.

3 To lay the tail end of the sheet, we make use of the pivoted rod N, which has a slanted portion, N, that comes in contact with the upper surface of the gripper-bar, so that as the bar approaches the guide D said lever is raised, and as the bar recedes from the guide said lever fallsby gravity upon the tail portion of the sheet, and holds it in position while the leading end isbeing delivered and laid.

Having described our invent-ion, what we claim is 1. The combination, with web severing mechanism as described, of a series of guiding-tapes, a guide-chute, a receiving-table mounted upon vertical screws, means, as described, for operating said screws, a gripperbar constructed to reciprocate over the table, and means, substantially as described, for opening and closing the grippers at the end of each reciprocation of the gripper-bar, substantially as shown and described.

2. The combination, with a reciprocating gripper-bar carrying an oscillating grippershaft provided with aprojectingllever, ofarock Shaft having a depending rod passing through the gripper-bar, and a projecting arm arranged to be operated by the lever of the gripper-shaft,whereby a positive ejectinent of the leading end of the sheet from the gripper is secured, substantially as shown and described.

3. The combination of the swinging frame H, the gripper-bar I, the gripper'shaft 1 having the arms 1 1 the cam M, the pivoted latch J, the connecting-rod H, the lever G the pawl G, the disk G, connectingrod G, the ratchet G, the counter-shaft F", provided with bevel-gears F the wormshai'ts F", provided with bevel-gears F, the gear-screws F, and the table F, substantially as shown and described.

4. The combination of the swinging frame H, the sh aft K, having the rods K Kflthe gripper-bar Lhaving the grippershaft I'Zprovided with the arms I 1 and the lever L, and the fixed cam M, and pivoted latch J, substantially as shown and described.

5; The combination of the reciprocating 2o

Images