US468095A - Machine for trimming box-corners - Google Patents

Description

(No Mdel.)

G. H. FUCHS. A MACHINE FOR TRIMMINGv BOX GORNERS.

Patented Feb. 2, 1892.

AUNITED STATES PATENT OFFICE.

CHARLES Il. FUCHS, OF TIFFIN, OIIIO.`

MACHINE FOR TRIMMING BOX-CORNERS.

SPECIFICATION forming part of Letters Patent No. 468,095, dated February 2, 1892.

Application nea January zz, 1891. serai No. 378,721; (No man.)

To all whom it may concern.:

Be it known that I, CHARLES Il. FUCHS, a citizen of the United States, residing at Tilhn, in the county of Seneca and State of Ohio, have invented certain new and useful Improvements in Machines for Trimming Box- Corners, of which the followingis a specification, reference being had therein to the accompanying drawings.

Thisinvention relates to new and useful improvements in machines for trimming the corners of wooden boxes; and it consists in the improved devices whereby the projecting ends of the tenons which join the sides of a wooden box together are neatly trimmed off.

The invention further consists in the peculiar construction, arrangement, and combination of the various parts, all as more fully hereinafter described.

In the accompanying drawings, Figure lis a vertical section of my improved machine. Fig. 2 .is a plan view of a portion thereof. Fig. 3 is an end elevation thereof. Fig. 4 is an end elevation of a box, showing the projecting tenons.

A is the frame of the machine.

B is a table supported on top.

C is a shaft journaled in suitable boxes below the table.

l) is the pulley for revolvingthe shaft, and E is a revolving cutter secured to the shaft and provided around its face with oppositelyinclined knives or teeth, the cutting-edges of which are presented at right angles to each other. This cutter is preferably formed of two like disks d a., having suitably beveled faces on which the cutting-teeth are formed. The two disks are clamped together upon the shaft so as to form a right-angled depression around the face of the cutter.

G is a guide-bar supported upon the frame above the cutter and provided upon its upper face with a depression l-I, the sides of which are at right angles to each other and form inclined guide-faces I. A slot .I is formed in the bottom of the depression and a stop K is adjustably secured in this depression. This guide-bar is vertically adjustable by any suitable means, such as the screws J', which support the guide-bar at the ends, having suitable lock-nuts L to hold it in its adjusted position. It desired, the guide-bar may be constructed in two halves, as shown in the draw ings, so as to be more conveniently manufactured, and the slot .I may be enlarged where the cutter is secured to form a clearance for the dbris. The cutter is arranged in the longitudinal center of the guide-bar, and its cutting-edge on top forms the complementary apex of the angle of the guidefaces of said bar.

In practice, the parts heilig constructed and arranged as shown and described, they are in-` tended to operate as follows: If a box joined together in the usual manner and with the ends of the tenons slightly projecting at h, as shown in Fig. 4, is placed cornerwise into the depression H of the guide-bar, the part of the corner to be trimmed projects through the slot J, and upon pushing the box to pass over the cutter, while keeping it pressed against the guide-faces I, all the projecting ends on both sides of the corner will be trimmed oii. In this manner all the corners of the box are treated. Should the cutter wear, it can be sharpened by filing, which can be easily done when the two parts of the cutter are separated and the guide-bar is adjustable vertically to enable the operator to set itin proper relation to the cutter. The office of the stop K is merely to tell the workman when the work is done, and it is therefore set at the proper distance away from the cutter, according to the length of the boxes to be trimmed, the guide-bar being made long enough to give ample length on either side of the cutter to receive boxes of all sizes.

My improved machine trims not only both sides of a corner at once, but it has the advantange over other machines devised for the purpose that the corners can in no wise be disfigured by cutting away any portion of the sides of the box.

What I claim as my invention is l. In a box-trimming machine, a box-corner-supporting guide and a cutter having a cutting-face corresponding to the apex of the angle of said guide and mounted to revolve therein, substantially as described.

2. In a box-trimming machine, the combination of a box-corner-supporting guide, a revolving cutter having a cutting-face 'correspending to the angle of the apex of such guide and mounted to revolve therein, and

IOO

i an adjustable stop secured to such guide, subof a revolving cutter in roximitv to and Y C v mounted to revolve in the guide formed of two disks clamped together, having inverselybeveled cutting-edges corresponding to the 15 angle of the side of the guide, substantially as described. y

Intestmony whereof I afx my signature in presence of two Witnesses.

CHARLES H. FUCHS.

Witnesses:

N. L. BREWER, H. D. MILLER.

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