US411506A - Chamfer-cutter - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1'.

1 O. MATTISON.

GHAMTE'ER CUTTER.

No. 411,506. Patented Sept. 24, 1889.

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(No Model.)

2 Sheets-Sheet 2. 0. MATTISON. GHAMFER CUTTER.

Patented Sept. 24, 1889.

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CIIRISTEN MATTISON, OF MINNEAPOLIS, MINNESOTA.

CHAMFER-CUTTER.

SPECIFICATION forming part of Letters Patent No. 411,506, dated September 24,1889.

Application filed May 13, 1889- To all whom it may concern:

Be it known that I, CHRISTEN MATTIsON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Chamfer-Gutters, of which the following is a specification.

The object of this invention is to provide improved means for cutting a chamfer or bevel upon strips or pieces of wood which are designed to be used in the finish of buildings, and in the same operation finish the ends of the same in any desired ornamental design.

In putting on the finish of buildings it is often desirable to use strips or pieces of wood having a bevel or chamfer out upon the edge thereof fora portion or portions of its length. It has heretofore been customary to cut the chamfer in such cases by means of machinery, but to finish the ends of the same with hand-tools. It is only by exercising a great deal of care that such work can be done at all by hand, and it is necessarily slow and laborious. By the machine which I employ and which is hereinafter particularly described, such chamfers or bevels can be rapidly made, and their ends can be given any desired ornamental finish.

In the accompanying drawings, forming a part of this specification, Figure l is aside elevation of my improved machine, the frame being shown in section. Fig. 2 is an end elevation of the same with the portion of the frame broken away. Fig. 3 is a side elevation of the cutter-head and cutters. Figs. 1 and 5 are detail views of one of the cutters. Fig. 6 is a plan view of a strip of wood having chamfers or bevels, such as may be formed by my machine. Fig. 7 is a detail section on line 00 0c of Fig. 6. Fig. 8 is a view similar to Fig. 6, showing an ornamental finish at the end of the bevel or chamfer.

In the drawings, 2 represents the frame of the machine, which may be of any suitable construction. Upon this frame is mounted in suitable bearings a shaft 3, which is adapted to be driven from any suitable source of power. Secured upon this shaft is a cutter-head 5, which may be fastened upon the shaft by any Serial No. 310,542. (No model.)

suitable means. This cuttenhead is provided upon its periphery with two series of plane surfaces, which are inclined toward the axis of the cutter-head. These inclined surfaces are arranged alternately and inclined in opposite directions. A series of knives 9 are secured upon the plane surfaces upon the periphery of the cutter-head. Each of the knives 9 consists of a main portion having an inclined cutting-edge and a wing or projection 11, extending at an angle from the main portion of the cutter, and provided also with a cutting-edge 12. These knives are made right and left hand, one set of them being secured to one of the series of inclined surfaces and the other to the oppositely-inclined surfaces. The cutting-edges of the knives are thus oppositely inclined, and the cutting-edges of the wings project on each side beyond the head and are also oppositely inclined.

The material to be beveled or chamfered is placed upon the frame of the machine, and is preferably brought against a suitable gageplate 17, and the cutter is driven at requisite speed. The cutters strike the edge of the material and cut a chamfer or bevel thereon. As the knives are oppositely inclined, and as they are provided with the oppositely-inclined wings, which are also provided with cuttingedges, each knife will make a drawing out across the corner of the wood, and the two knives together will cut a bevel or chamfer of the width of the head, the ends of which will be cut by the wings on the knives. In Fig. 6, 18 represents the bevel or chamfer, and 19 the ends thereof, which are cut by the wings on the knives. By moving the Wood in either direction across the cutterhead the bevel will be continued for any desired length, and the end thereof will always be finished by the incline 19. By forming the knives with wings having curved or rounded cutting-edges the ends of the bevel may be given curved or rounded ends-such, for example, as indicated at 20 in Fig. 8. Any suitable shape may be given to the cutting edges of the wings, and thus any suitable finish may be given to the ends of the chamfers.

I claim as my invention-- The combination, with the cutter-head pro- 2 I LIL-506 Vided with the oppositely-inclined and alter- I11 testimony whereof I have hereunto set nately-arranged plane surfaces upon its pemy hand this 8th day of May, 1889.

riphery, 0f the right and left hand knives provided With the inclined cutting-edges, and CHRISTEN MATTISON. with the inclined wings projecting beyond the body of the knives, and provided also with In presence of an inclined cutting-edge, substantially as de- T. D. MERWIN,

scribed. A. 0. PAUL.

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