US188573A - Improvement in machines for trimming boxes - Google Patents

Description

`C. BOPP.

MACHINE FOR TRIMMING BOXES.

No.188,573. Patented March 20,1877.

N. PETERS` FHOTO-LITHOGRAFHER. WASHINGTON. D C.

boot and shoe boxes.

UNITED PATENT OFFICE.

CHRIST BOPP, OF BROOKLYN, NEW YORK, AgSSIGNOR TO HIMSELF AND J. 1Ly SWIFT, OF `SAME PLACE.

IMPROVEMEINT"INMNCHINE'S FOR TRIMMING BOXES.

Specification forming Ipart of LettersPatent No. 188,573, dated March 20, 1877; application tiled August 2, 1875.

To all whom t` may concern:

Beit knownthat I, VCHRIST Born, of Brooklyn, Kings county, in the State of` New Yfork,

have invented certain new and useful Improvements in Machines for Trimming Boxes, of which the following is a specification:

The object of the invention is to conveniently and rapidly plane 0E the overhangingends of the pieces of boardsforming the top,sides, and bottom of a box. In the manufacture of rectangular wooden boxes for packing, .and the like, it is common to use thinner material for the bottom and sides than for the ends, and to nail the bottom, top, and-sidesl upon the ends. The finished boxes show the sides, top, and bottom terminating exactly flush-With the outer faces of the end pieces. In practice it is common to attain this condition by setting them a little overhanging, and then planing ofi the surplus. My improvedmachinemarries planes for this purpose-inra vertically-reciprocating sash or frame, theplane-cutters being peculiarly mounted, and adjustable thereon.

The box, in being planed, is supported upon a table, which extends up so close to the plane of the cutting-ed ges as to save the wood from splitting oi' as each c-utter terminates its work, and is leaving the edges of its board.

Boxes of which the depth is exactly equal to the Width do not require all my adjustments. Most boxes are wider than their depth, like All these require peculiar provisions to allow the dressing of the entire end at twovoperations.

To dress the-end of a box, I lay the box upon a table, with one corner against a gage set on the table, and push the box forward on the table until the end is dressed by the planeirons. One plane runs close to the gage, and 'dresses the board which is upright at that position. The other plane-iron is at a proper distance therefrom to dress the opposite side of the end. Then turning the box quarter over, so that it lies upon another face, and again pressing it over against the gage, and presenting the same end to the cutters while the plane-iron nearly opposite the gage is in position to dress one edge, it will be found that,

with the raisin-box or the shoe-box, the other plane-iron will come in the wrong position.

I provide three plane-irons. One is always used. The others are set at dierent distances therefrom, and are used alternately, according to the position in which the box is presented.

I make the machine double, and allow two workmen to operate at the same table at the same time.

The drawings represent what I consider the best means of carrying out the invention, in which Figurelis a front elevation, and Fig. 2 a top view, with the sash and guides in section.

Referring to the drawing, A is the fixed frame-work. A1 is a horizontal bench or rigid table forming a part thereof, and extending quite up to the line of the cutters. A are vertical guides, adapted to firmly support and guide a stout rectangular frame or sash,.D, of cast-iron or other suitable material, which carries tools. D1 D2 D3, somewhat analogous to ordinary carpenters planes, but mounted in a nearly vertical position, and set at each end in ,a deep groove extending along the interior of the sash D. Each plane carries a planeiron set in a cavity extending through it.

Some of the planes may be adjusted outward and inward from the central line, and may be set in any required position by means of hand-screws el e2, Svc., extending through stout slotted cross-bars E, fixed on the back face of the sash D. Gr H are cross-bars serving as gages. They are secured in any desired position on the table A] by means of handscrews g h, standing in a slot in the table, as represented. K is a lilik or pitman, connecting the sash D to the crank L on the shaft L. This crank-shaft L is turned by a steam-engine or other suitable power, either directly or through the intervention of belts or gearing. Aplane-iron is mounted in each of the adjustable planes D1 D2, &c., and also in the upright side bars of the framing or sash D. The plane-irons in the latter are marked m, and are set in oblique positions to the line of their motion by being held in oblique holes or throats, as indicated. The other plane-irons m1 m2 are mounted in throats in their respective planes, which extend directly across such planes, and are therefore easier of construction and of' adjustment. The proper inclination of the cutting-edges of these latter is obtained by inclining the whole body of the planes D1 D2, &c. The inclination of either or'all maybe varied, in practice, to get the best effect.

It is important that the Wood be planed o" by a drawing cut, and that the face ofthe cutting-edge shall be a little away from the center of the end of the box being treated.

Thus, it' the plane-irons, in removing the surplus or overhanging material of the boards around the end, carry their work a little too far, and commence to plane the material of the end itself, they will only remove a little ofthe edge, and will leave the surface treated in a smooth condition, and leave the edge of the planing -work beveledv at a sufeiently gradual inclination.

The double form of the machine [attach importance to; but some of the advantages of the invention may be realized by a single machinethat is to say, a sash, D, which is only about half the width here represented, and with a single gage.

Bymakng the machine double I not only obtain the etl'ect of two smaller machines with only one set of driving-gear, but also am able to dress the very large boxes which are occasionally required and when used double, one side may be used with large boxes, which extend more than halt' the width, and the remaining portion ot' the table utilized for the smaller ones.

To use my machine the undressed boxes are taken one by one by the attendants, and placed on the table A1 with one end presented to the plane-irons, and with one corner thereof against the gage-bar H. In this position the projecting ends of the boards are plancd od' by the irons m2 m. Then the box is drawn back a little toward the attendant and turned quarter over, and again thrust forward. Now the projecting ends of the boards are dressed by the plane-irons m2 m1, and that end of the box being now completely dressed, the box is turned and the other end subjected to similar treatment. Another attendant may, in the meantime, be operating on boxes ot' the same or different size or form, on the opposite side of a machine, pressing the corners of the boxes against the gage Gr.

Experiments indicate that my machine will make one inans labor some two or three fold as effective as heretofore in this branch oflabor.

The plane D1 should be set a very little back of the planes on each side thereof, so that it will not act on the end of the box when the planes on each side are working on their respective edges.

I claim as my invention- 1. The sash D, carrying planes Dl D2 D3, and plane-irons m m1 m2, in combination with the table A1 and gages G H, as and for the purpose herein specified.

2. In combination with the table A1 and reciprocating sash D, the duplicate sets of cutters and duplicate gages G H, as and for the purposes herein specified.

In testimony whereof I have hereunto set my name in presence ot' two subscribing witnesses.

CHRIST BOPP. Witnesses:

CEAS. C. STETsoN, J. K. OULAHAN.

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