US2553A

US2553A - Machine for

Info

Publication number: US2553A
Authority: US
Publication date: 1842-04-11
Anticipated expiration: 1859-04-11

Description

mais salaires PATENT onirica..

DAVID H. GILBERT, OF DORCHESTER, MASSAGHUSETTS.

MACHINE FOR APPLYING PASTE 0R SIZING',8m.7 `TO SHEETS OF PAIPER OR OTHER MATERIAL IN THE PROCESS OF .'RLAKIIFG-` CARDS, PASTEBOARDS, 8m.

Speccaton of Letters Patent No.1 2,553,.dated April 11, 1842.

T0 all wiz-0m` t may concern `Be it known that I, DAVID H. GILBERT, of.

`hereinafter referred to, forms my specification.

`Figure l, represents atop View ofimy machine.

maybe `necessary to a full explanation of the several parts, will be hereinafter referred to and described.

The operative parts of t-he machinery are supported upon a suitable wooden or` metalV lic frame A, Figs. l, 2, 3, 4. The power which gives motion to` said parts is applied by a beltrD passing'` over a drum or pulley4 .E, or in any other convenient manner, to a horizontal and transverse revolving shaft B, Figs. 1,4, the said pulley E beingsituated on one end of the said shaft.'

.Another pulley or drum Gr is placed in or Aabout in the center of the shaft B, from which` a belt l-lpasses to and around the periphery of a larger pulley or wheel I, arranged upon a horizontal shaft K, having a crank L Fig. 2 upon one end, to which .crank one endof a` connecting `rod M is jointed, the other end of said rod being similarly jointed to a vibrating lever N, whosefoot or lower endis attached to a horizontal transverse` shaft O, the connect` i ing rod beingjointed tosaid lever at ashort and suitable distance above the shaft as seen in the dra-wings. The shaft O has another lever N applied to its opposite end in all .horizontal movement is imparted to the car- Fig. 2, is `an elevation of oneA side. Fig. 3, is an elevation` of the opposite `side. Fig. 4, is a longitudinal central, `and vertical section. `Such other drawings as `riage or frame P. This carriage or frame is supported on proper slide or guide rails R, R, and `is` alternately `moved toward and away,` from a table or boand S-earranged at :one end of the frame A as seen inFigs. 1, 2, 3, 4, the` sheets ofpaper to be pasted` or sized' being laid in a pile or heap T on the rear end of said table.

A fountain` or reservoir U of paste or `sizing, (having a drum or cylinder V revolving therein, and put and kept in motion by a 'crossed belt WY Figs.` 3, 2, extending from a pulley X on the shaftlK to and about a pulley Yron the `shaft of the fountain roller, is placedl and supported at some distance below the table as seen in thedrawings.. A `scraper Zwhich may be adjusted by screws "a, b toa-suitable distance from the periphery of the cylinder V, regulates the film or coating offpaste on` the surface of the cylinder, which as the cylinder revolves is communicated toxand received by the bristles of the `revolving brushC,resting in contact with the cylinder, and also with another and similar brush (Z, arranged` above: it as seen in Figs.` 2, 3, 4, both of the said brushes being revolved` by belts c, f, proceedingfrom the circumference ofa pulley g, Fig. 3, in the` driving shaft.

As the carriageor framed? `is driven forward or towardtheitableS, it passes be-y tween the brushes c, CZ, and on receivinga sheet ofpaper from the table, as it recedes it draws the sheet between the brushes, which. impart to'its upperand lower sides `a coat-ingrof, paste. The carriagehas a nipping` or finger bar or thin4 plate it, arranged transversely `over that end of` itwhich approaches the table S. This nipping bar rises ,from `and shuts dawn `upon the end of the "frame l), so` that as the carriage frame approaches nearly into contact with the edge of the tableS, the attendant introduces the edge ofa sheetof paper which he has previously taken from the heap T, between the linger bar andthe end of the carriage, and the finger bar `is then turned down so as to `grasp the sheet and draw lit away from the table, when the carriage frame recedcs. The

linger `barretainsts hold upon the sheet until the carriageretreatsas far back as it is` intended it. shall, when` the bar Aflies upward, releases the sheet, `and permits the `edge which it..held tov drop downward tog ward, or upon the table -the opposite side of the sheet being supported upon the apron Zr.

The mechanism which raises and depresses the finger bar Z1, may be thus de scribed.' Each end of the bar is attached to a lever Z Figs. l, 4, 3, 2, which turns about midway of its length and on its lower side upon ahinge or fulcrum m. Each lever Z has an inclined plane n formed on its under VYside in rear of the 'fulcrumf/n,V as seen in Fig. 4. Al long bar or rod 0 supported in suitablel guides is arranged on the lower face of each side of the carriage frame, so as to slide longitudinally somewhat aside from the rear arm of the lever Z. One end of each of these bars or that in proximity with the lever contiguous to it, is bent around horizontally at right angles from the center of the machine, or so as to project by the inclined plane nv of the lever as will beunderstood by reference to Fig. 5, which is a view of the underside of the carriage frame and sliding bars 0, 0. The opposite or rear end of each of the slide bars is bent downward at right angles to the bar, as seen at p Fig. 4.

A horizontal and transverse'shaft g, Fig. 4, has an arm r projecting vertically downward from its center, which as the pulley 1 turns upon its shaft is met by a stud S Fig. 4, inserted in the side of the pulley and is forced in a direction toward the fountain roller, thereby turning the shaft Q slightly on its bearings, so as to bring two other arms t t, projecting upward from the shaft, (see Fig. 6 which is a side view of the shaft Q exhibiting the three arms r, t, 15,) intocontact with the front ends of the slidebars 0, o, and force said slide bars rearward and f consequently by the pressure of their bent j slide bar meets or is driven against the front end of a stud u Fig. 4, so as to press forward the slide bar 0 and thus permit the iinger bar to be borne upward by the action of a spicing f1; Figs. l, 3, which depresses its rear en As that edge of the sheet of paper which is grasped by the finger bar might possibly adhere to the carriage frame by reason of a Asmall quantity of paste getting upon the end of the carriage frame, a thin plate fw, Fig. 4, (see also Fig. '7, whichv represents a top view of this plate), is interposed between the finger bar and the frame, or rests imlmediately upon the frame as seen in the drawings. The front edge of the plate is Z2. c b, c, as seen in Figs. 1, 4. VhentheV carriage frame P is moved forward to receive a sheet of paper, the projections of the plate w, are brought into contact with the rear edge of the table s, or against small studs (Z applied thereto, and thereby as the carriage advances, the plate Z recedes and permits the finger bar to press the sheet of paper directly upon the carriage frame under it. As the plate fw is very thin the Iinger bar may be iiled away upon its lower side so as to receive or shut over the plate fw, and permit the front edge of the bar to be brought into Contact with the paper. When the carriage frame is ldriven back or has drawn the sheet of paper between the revolving brushes, the rear ends of the rods a af, meet two arms e e extending upward from a horizontal shaft f (which has another arm g projecting from it with a weight 71, attached to its end as seen in Fig. 4,), and press the rods and plate fw forward so as to cause the chamfered edge of the plate to pass under the edge ofthe sheet of paper, and thereby disengage it from the carriage frame, so that it will drop upon the table t'.

It was before stated that the other or l opposite end of the sheet still rested on an apron Ze, which when the carriage frame is driven forward is drawn from under the said end of said sheet, and permits it to fall thence carried rearward and passed partly around a transverse roller 7, arranged in the rear of a carriage Z, which slides longitudinally and horizontally, on suitable guides or rails m m attached to the main framework. From the roller 7c', the apron or cloth extends in an opposite direction to another roller n, Fig. 4, passing over the same and being att-ached to a transverse piece of wood or metal o. A string or cord 79 connects the center of the piece 0, with the end of a lever Q Figs. 3, 4, 2, which turns on a fulcrum r', at its opposite end, and has a roller s arranged upon its side, the said roller being in Contact with the periphery of a cam or eccentric t fixed upon yto a cross bar Z Figs. 1, .4. The apron is Y attached to` the piece of woodo, downward, thereby causing the carriage frame Z to advance forward, and drawing the apron from under the sheet of paper. The apron is stretched out or drawn backward by the action of `weights a Figs. 2, 3, 4, attached to strings e each of which passes over a pulley fw. Fig. 4, and is connected to the rear end of the carriage Z.

It was before mentioned that the sheets of paper are recevedupon a tablet', which as the sheets multiply thereon must be gradually depressed. The table being suitably guided during-its vertical movements, has at each end a toothed rack w', extending down ward from its lower side, the said rack engaging with a pinion y on a transverse revolving horizontal shaft e (see Fig. 4).

A gear wheel A2 Fig. 2, is fixed on one end of the shaft Z', the said gear wheel a2 being turned by a geared pinion b2 (represented in Fig. 2, by dotted lines), upon a cro-ss horizontal shaft c2 Figs. 2, 4. A ratchet wheel Z2 is fixed on the shaft c2, by the side of the pinion b2, the said ratchet wheel being caused to turn around, by the action of a pawl 0r click e2, extending from an upright lever f2 which turns upon a fulcrum at its foo-t or lower end, and is moved forward and back by a connecting rod g2 extending therefrom to a small crank 7b2, upon the end of a transverse horizontal shaft i2 Figs. l, 3, 4.

Motion is communicated to the shaft 2 by a belt 702 which is arranged upon a cone of pulleys Z2, on the driving shaft B, and also upon another and similar reversed cone upon the shaft 2. Thus by this arrangement of mechanism the table will be regularly depressed as t-he heap of paper in creases upon it.

Should the table fall faster than is desirable at any time the pawl or click e2, may be lifted from the ratchet wheel by the attendant, placing his foot upon the end m2 of a lever m2, n2, 02, Fig. 2, and raising the upper end of a rod p2 against the lower side of the pawl, thereby preventing the action of the pawl upon the ratchet, and consequently the fall of the table, until such time as the foot of the attendant is removed from the lever. In order that the table may keep its position when the pawl e2 is raised-the shaft c2, has a friction pulley g2, (see Fig. 3), arranged on some convenient part of it* upon the periphery of which a lever r2, is pressed by a weight s2, so as to create a sufficient friction to retard the descent of the table.

A hand crank t2, Figs. l, 2, fixed upon the side of the ratchet wheel d2 enables the attendant to elevate or depress the table at pleasure.

From the above it will be seen that both sides of a sheet of paper are covered with paste, as it is passed between the revolving brushes, and that the sheets of paper so treated, are deposited by the carriage frame and movable apron, in a regular `pile or heap upon a board or table. On subjecting this heap or any part of it to the action of a standing` press the whole of the mass so pressed may be caused to adhere together if requisite. chine and intend to use it more especially for the manufacture of playing and other cards, in general, the operation of uniting two or more sheets of paper o-r of causing their surfaces to be placed in contact with paste or adhesive matter, may be thus described.

If it is desirable `to build upon the table z' a pile or heap of paper, of which every succeeding two sheets are to be combined or pasted together, it only becomes necessary for the attendant who feeds t-he machine to remove two sheets of paper from the heap on the table S, whenever the carriage frame P approaches the table and to insert these two sheets (the one being placed exactly upon and over the other so that their edges shall coincide), between the finger bar L and the frame P. The former will then close down upon the latter, grasping the two sheets and when the carriage frame recedes, will draw the sheets between the brushes, so as to apply the paste to the upper surface of the upper sheet, and to the lower surface of the lower one. The two surfaces in con tact viz. the under surface of the upper sheet, and the upper surface of the lower will not receive any paste. As the carriage frame advances again, two more sheets are received by it as before, and so on until the whole heap on the table S is pasted and deposited on the table z'. Therefore as the pasted side of each sheet of the pile is in contact with the pasted side of one of the sheets nextto it, and as its unpasted side is also in Contact with the unpasted side of a sheet next to it, when the mass is pressed together the pasted sides of every succeeding two sheets of the mass will adhere while the unpasted sides do not stick together. Thus if we wish to manufacture pasteboard of three or more thicknesses of paper, we have only, after passing two sheets together as before described between the brushes, to feed the carriage frame with single sheets until we obtain the requisite number laid upon each other. We then pass two sheets together again through the brushes, and by continuing this process and that of pressing, we are enabled to produce a series of pasteboards of the required thickness.

Having thus explained my improved machinery, I shall claiml. Applying paste or adhesive matters to sheets of paper or other material by drawing said sheets by a sliding carriage frame But as I have used this ma` P, between two cylindrical or suitable brushes, revolving or moving in contiguity with eachother, all substantialy as above set forth; also the combination of said carriage frame P with the table z', and also with the movable apron 7c, for the purpose of depositing the pasted sheets of paper in a regular pile upon said table, the said combined machinery being constructed and operating substantialy as herein before described.

2. I further claim the machinery for freeing or separating the sheet of paper from the finger bar and carriage P, so that said sheet may fall upon the table i, the said ma-` chinery consisting of the plate 1,0, with its rods a', a, extending rearward therefromthe weighted shaft f', with its projecting arms and the stud d of the table S, the same being arranged, combined together, and operating substantially as described.

In testimony that the foregoing is a true description of my said invention and improvement, I have hereto set my signature this tenth day of March in the year eighteen hundred and forty two.

' DAVID H. GILBERT.

Witnesses:

R. H. EDDY, C. L. PECK.