US292991A - Machine for cutting heads of boxes - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

M.E.OONVEBSE.[

MACHINE FOR CUTTING HEADS 0]? BOXES. No. 292,991. Pate Feb. 5, 1884.

Fig.2.

(No Model.)

' y 2 Shets-8heet 2. M 13. CONVERSE. MACHINE FOR CUTTING EEADS 0F BOXES.

Patented Feb 5, 1884 WITNESSES.

UNITED STATES PATENT OFFIC MORTON 1C. CONVERSE, OF \VINGHENDON, MASSACHUSETTS.

MACHINE FOR CUT TlNG HEADS OF BOXES.

SPECIFICATIONrforming part of Letters Patent No, 292,991, dated February 5, H84

Application filed March 23, 1883.

(No model.)

To all whom it may concern:

Be it known that I, MORTON E. CONvERsE, of WVinchendon, in the county of \Vorcester and State of Massachusetts, have-invented an Improved Method of and Machine for Cutting Oval and other Forms of Heads and Bottoms for Boxes and other Receptacles; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

Figure 1 is a side view of the machine for cutting the oval or other forms of heads and other articles; Fig. 2, a top view of the same;

Fig. 3, an end view thereof; Fig. 4, a vertical section of the top of the machine, in a plane indicated by the line a m, Fig. 2; Fig. 5, a vertical section thereof, in a plane indicated by the line y y, Fig. 2; Figs. 6 and 7, respectively, top and side views of a strip of stuff after it has been passed through the machine.

Like letters designate corresponding parts in all the figures.

The purpose of my invention is to cut, in wood especially, oval and other forms, regular or irregular, which cannot be practically cut in a lathe or by other means-such as are adapted to cutting simple regular forms, such forms being particularly but not exclusively -intended for box heads or bottoms.

, lVIy improved method of cutting out such forms consists in taking boards or strips of wood of sufficient breadth to include the entire width of the forms to be cut therefrom, and of sufficient thickness to make two thicknesses of the forms, then passing the strips between two cutting-dies, one to cut the forms on one side, and the other to cut the forms on the other side, of each strip, each about halfway through, and finally cutting the strips in in the trough. On each side of the trough is located a cutting-die, B, which has an intermittent reciprocating movement into the trough, one-half way across the same, and back out of the trough, to effect the cutting of the forms in both sides of thetrough. Alter nately with the cutting movements of the dies an intermitting feeding movement is communicated to the strip the extent of a little more than the length of each form at each time. The intermittent reciprocating movement is communicated to each die B by means of two earns, a I), attached to and revolving with a Vertical shaft, 0, one cam, a, throwing the die forward and the other cam, b, throwing it back. One cam is below the other, and each acts in a separate yoke-space, one somewhat overlapping the other, as shown in Fig. 2, so that one acts to throw one way and the other the other way, as clearly indicated. The two dies a b are not opposite to 'each other, but are con siderably nearer to each other in one direction than the other, and they are so arranged that neither acts for some time after the die has been thrown back, to allow time for the feeding along of the strips while they are at rest. \Vhen the die has been thrown forward and the cutting completed thereby, the throwingback cam may begin to act immediately. The

die-stock d is mounted adj ustably on the yokeframe or blockf, so that the depth of cut may be varied at will. The dies are also removable and replaceable by means of the adjustingscrews 9 9, so that many different forms of heads may be cut on one machine by thissimple change and the adaptation of the feed on the upper edge of the strip just over where the die is cutting, and then relieve the strip of the pressure while'the feed-movement is in operation. I have shown in Figs. 2 and 5 a means of effecting this purpose applied in connection with one of the dies. A cam, t, projects from the cam-yoke or other part connected with the reciprocating die through or over the adjacent side of the feed way or trough. This cam acts under a pressure-lever, j, which is pivoted to the side of the feed-way, and the other end of which, or a presser-bar, 7r, pivoted 5 thereto, is arranged to bear upon the upper edge of the stuff. WVhen the die comes for ward, this cam lifts its end of the presser-bar and causes the other end or the pres'ser-bar thereon to press on the stuff, and when the die recedes the cam again releases the lever, thus permitting the stuff then to be fed along freely. The dies are or may beactuated by means of beveled-cog wheels Z Z on a horizontal driving-shaft, O, gearing, respectively, with I beveled pinions m m on the shafts c c of the cams a b.

I employ two pairs of feed disks or rollers, a a and 00, arranged above and below the feed-trough A. substantially as shown in Figs. 2, 3, and 4. These feed disks or rollers not only have uniform speeds all in the same direction, but they are required to have an intermittent movement alternating with the intermittent movements of the cutting-dies B B, and also variable in extent. The upper disks or rollers also are to be made adjustable toward and from the lower disks or rollers to suit different widths of stuff. To effect and harmonize these movements I employ the fol- 0 lowing device: Upon the driving shaft 0, which also drives the die-operating cams, so that the sets of movements are timed accurately together, is a crank-disk or crank, D, from the erank-pin of which a connecting-rod, 5 E, extends upward to and is connected with a vibratory arm or lever, G, which is secured to the shaft (1 of one of the feed disks or rollers, as of the lower one of the pair 0 0. The connecting-pivot 9', for the connecting rod and 0 arm, is adjustable in a slot, 8, in the said arm, so as to adjust the extent of the feed-movement. The arm carries a pawl, t, which takes into a ratchet-wheel, H, on the said shaft q, whereby an intermittent revolving movement is communicated to the shaft and the feed disk or roller mounted thereon. An equal intermittent and simultaneous revolving movement, all in the same direction, is communicated to the other three shafts, u u it, of the remaining feed disks or rollers by gear-wheels,

as follows: On the four feed-disk shafts, respeetively, are four gear-wheels, o o v c, all of equal size. The driving-gear wheel of the shaft q is connected with its lower fellow gearwheel by a transmitting-gear wheel, 10, and these two lower gear-wheels to drive the two upper gear-wheels '0 12, respectively, by two successive transmitting-gear wheels z 2, all as represented in Fig. 1. The two pairs of gearwheels 2 .2 not only cause the revolving movement of the upper feed disks or rollers in the right direction, but allow them to be adjusted up and down within certain limits without disarranging the meshing of the gear-wheels.

Other parts and adjuncts of the machine besides those above described are of any ordinary or suitable construction, and need no description- What I claim as my invention is- 1. The method of forming and cutting out box-heads and other articles in wood, which consists in passing strips of wood, previously made of proper width and thickness, equal to double the thickness of the heads or articles to be formed, or thereabout, between two cutting-dies, thereby cutting forms on both sides thereof, and then cutting the strips in two edgewise to sever the articles from the strip, substantially-as and for the purpose herein specified.

2. In a machine for forming and cutting out box-heads and other articles in wood, the combination of a fced-trougl1,A, holding the strips of wood and reciprocating cutting-dies B B, having their movements at right angles to the trough and through the sides thereof, substantially as and for the purpose herein specified.

- 3. The combination of the two cams a I), placed one above the other on the same shaft 0, the cam-yoke f, having cam-spaces for the reception of the respective cams, one above the other, and the die-stock d, secured adj ustably to the cam-yoke, substantially as and for the purpose herein specified.

4:. The combination of a cutting-die,B, cam i, secured to the cam-yoke f, or equivalent projection on the cam-stock (I, and pressurelever j,pivote d on one side of the feed-trough or way A, substantially as and for the purpose herein specified.

5. The combination of the intermittently. reciprocating dies B B, intermittentlyturning feed disks or rollers a a 0 o, driving-shaft 0, adapted to operate both the dies and the rollers, intermediate mechanism, as described, between the driving-shaft and dies, crank-disk D, connecting-rod E, pawl-arm G, and ratchetwheel H, operating the gear-wheels for turn ing the said feed disks or rollers,whereby the intermittent movement of the dies alternate with the intermittent movements of the feed disks or rollers, substantially as herein specified. m

In testimony whereof I have signed my name in presence of two witnesses.

MORTON E. CONVERSE.

Vitnesses:

FRANK B. SPA'LIICR, E. J. Woon.

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