US321828A - Xcutter h head - Google Patents

Description

(No Model.)

J. LOAR.

.GUTTER HEAD.

Patente-d July 7, 1885.

NITED STATEs PAT-nr JAMES LOAR, OF OATLETISBURG, KENTUCKY, ASSIGNOR OF ONE-HALF TO JOHN N. SMITH, OF SAME PLAGE.

CUTTER-HEAD.

SPECIFICATION forming part of Letters Patent No. 321,828, dated July 7, 1885.

(No model.)

ToaZZ 'whom it may concern:

Beit known that I, J AMEs Loan, a citizen of the United States and resident of Gatlettsburg, in the county of Boyd and State of Kentucky, have invented certain new and useful Improvements in Cutter-Heads; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which ro it appertains to Inake and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure lis a side View of our improved cutter-head. Fig. 2 is a vertical section through the same. Fig. 3 is a sectional view on line :n x, Figs. 1 and 2, and Figs. at, 5, and 6 are sectional detail views through the outer portions of cutters adapted for different kinds of work.

Our invention has relation to cutter-heads for matching and similar wood-cutting inachinery; and it consistsvin the improvedcon struction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings,the letter A indicates the arbor upon the reduced outer end, B, of which the cutters or saws O are secured, the saws or cutters having perforations 3o D, through which pass screw-.bolts E, which enter threaded perforations F in the shoulder G of the arbor.

The cutters are formed in the shape of sawblades, having teeth H of any suit-able shape around their entire periphery; and it will be seen that by arranging saws or cutters of different diameters side by side upon the arbor,

the periphery of the entire cutter formed by the several saw-blades may be made to form 4o any desired outline, which will be eut in reverse in the lumber fed to the cutter.

In this manner tongues or grooves of any width may be cut, and likewise any other similar cutting in lumber-snch as rabbeting,

cutting moldings, or-similar work.

It will be seen that by havin ga n umber of sawblades placed side by side there willbe no danger of ripping or splitting thelumber,the blades cutting each its individual kerf, all of which kerfs will form the cut desired, while in the cutter-heads usually employed, the eutters,being placed some distance apartupon the head, are liable to rip or splinter the lumber, especially in cutting in cross-grained wood.

It will likewise be plain that any variety of patterns may be accomplished with a limited number of saw-blades by simply arranging the said blades in different positions relative to each other, and by using more or less of larger v0r smaller saw-blades, the larger blades making the deeper portions of the work and the smaller blades making the more raised portions of the work.

I am aware that it is not, broadly, new to arrange cutters of different diameters upon an arbor, the said cutters, however, having only two or very few widely-separated teeth or cutting portions, and we are likewise aware that it is neither broadly new to employ saw-blades to cut the edges free in matching-machines, and we do not desire to claim such construction, broadly; but

I claimrIhe combination,with an arbor having a reduced end and ashoulder having threaded perforations in its face, with a cutter-head formed by a number of saw-blades arranged side by side, and having a central perforation iitting upon the arbor,and eccentric registering perforations registering with the perforations in the shoulder of the arbor, and screwbolts lit-ting in the said perforations, as and for the purpose shown and set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

JAMES LOAR.

Witnesses:

JAMES TRIMBLE, A. C. CAMPBELL.

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