US268767A

US268767A - Machine for cutting sheets of veneer

Info

Publication number: US268767A
Authority: US
Publication date: 1882-12-05
Anticipated expiration: 1899-12-05

Description

(No Mode1.)`

HARND & F. KUKKUCK.A

MACHINE FOB. GUTTINGSHE'ETS 0F VEBHEJR.` No. 268,767. Patented Dec. 5, 1882.

www F771 www NITED STATES PATENT EEICE.r

HENRY All-ND AND FREDERICK KUKKUGK, OF ST. LOUIS, MISSORI.

MACHINE EOR CUTTING SHEETS OF VENEER.

SPECIFICATION forming part of Letters Patent No. 268,767, dated December 5, 1882.

i Application lcd August 21, 1882. (No model.)

barrel-stave tops, we have devised an iinprovement in-the art of making the same out of veneers or thin sheets of wood, by which we employ blanks goredlongitudinally, or in the direction of the grains of the wood, for which we have been granted United States Letters Patent, No. 262,956. It is to form these gored blanks that our present machine is devised.

In the accompanying drawings, illustrating our invention, Figure l is a vertical section, partly in elevation. Fig. 2 is a. plan View of the cutters and theirsupporting parts detached 'from the machine, and Figs. 3 and et show veneer blanks cut with gores to show the work ci' our invention. v

A indicates a suitable frame for supporting the heavy bed-piece B, .on which rests the apertured plate G, carrying on each side of its. apertures knife supports D and knives E.

These knives `are secured in any suitable way A to their supports, and the supports are secured afljustably by means of screws or otherwise to the plate G. The knives of each set of cutters and their supports are set upon the plate at an angle to each other, being in contact at the inner ends, and open or apart more or less at the outer ends, so as to be adapted to cut out gored pieces from veneers or thin sheets of wood. Over these knives, and work# ing in suitable ways or bearings in the frame of the machine, is a vertically-reciprocating plunger, F, for the purpose of forcing the thin sheets of wood to be gored down upon the gering-knives.

G indicates a plate suspended by coiled springs H H from the beam I, and working in suitable vertical ways (not illustrated) in the side posts of the frame. This plate is provided wear out they can be readily replaced.

with gore-shaped apertures K, suitable to expose'the part of the veneer or thin sheet of wood L, which is to be forced down upon `the cutters. The coiled springs serve to automatically raise the plate, Gr, and with it the gored blank, as soon as the plunger is elevated,` and to clear the blank from the cutters. The plunger may be worked by power in the usual manner, the sheets of veneer or thin wood being adjusted into proper position by hand or side guide-strips; or pegs may be provided on the plate G. The `lower side of the plungerhead is a plain surface, preferably provided with recesses, (notillustrated,) into which edgewood blocks are driven in such position as to be flush with the head of the plunger and preserve its plain surface and cover the gorespaces opposite the knives. The result is that the plain surface of the plunger-head when it bears down upon the thin sheets of wood upon the plate G smooths the sheets thoroughly before they are forced down upon the cutters, the springs H H being stiff enough to give ample resistance for this purpose. The edge-wood blocks, on account ot' their grains running vertically, enable the cutting to be done more perfectly, as is well understood, and as, the

The knives are preferably set with their backs inclined apart, so that the gore-,shaped apertures between them will be smallest at the r cutting-edges and grow larger toward the backsof the knives, thus freeing the waste gore-pieces that are cut out, and permitting themv to drop out of the way.

One, two, or more sets of cutters may be employed, according to the size or width ofthe blank that it is desired to form.

The length and width of the gores may be varied-the length by adjusting the plates to `be cut with reference to the knives, and the lwidth by adjusting the angle at which the knives incline toward orfrom each other.

The direction of the gores may be Varied with reference to the grains ofthe blank to be cut at will, for the purpose of preventing the joints in one blank from coming directly overA the joints in another blank when. the blanks are placed and joined together.

For convenience, in connection with each machine there should be two or more plates IOO G provided with cutters having different di| 3. In a veneer-blank-cuttng machine, the

rections of cut with reference to the blanks, for the sake of breaking joints, as described.

Having thus described our invention, what We claim as new, and desire to secure by Letters Patent, is-

1. In a "eneer-blank-cutting machine, the combination ofthe plate C, having gore-shaped apertures, and the gore-cutting knives and their adjustable supports, arranged substantially as described.

2. In a veneer-blank-cutting machine, the plunger, the plate G, having` gore-shaped apertures, and its supporting-springs, in combination with suitable frame-Work and a cutting device, substantially -as described.

combination ofthe plunger, the plate Gr, having gore-shaped apertures, and its springs,with the gored-apertured plate C, the cutters, and zo their adjustable supports, substantially as described.

In testimony whereof we have hereunto subscribed our names this 17th day of August, A. D. 1882.

HENRY ARND. t FREDERICK KUKKUGK.

, Witnesses:

WM. P. ARND, R. E. SCHRICK.