US87282A - Improvement in moulding-tool - Google Patents

Description

tLPETERs, PHOTO-LITHOGRAPHEH. WAS

tant' 'gatut Attirr.,

ANDREW P. oDHoLivL-or BRIDGEPCRT, CONNECTICUT. Leners 13mm No. 87,282, mi Fama/ry 23, 1869.-

11i/IPRovQFJNIErIT 1N MoU'LDING-'roon The Schedule referred to in these Letters Patent and making part of Athe same.

To all whom 'it ma/yfconcern: A

Beit known that I, ANDREW P.' ODHOLM, of Bridgeport, in the county of Fairfield, and State 'of Connectiont, have invented a new Improvementin Cutter-Head for Wood-Monldings; and I do hereby declare the following, when taken in connection with the accompanyin'g drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this 'specication, and represent, in-

' Figure l, a face or front view of the cutter-head;

liigure 2, a side View; and in l l Figure 3, a central section longitudinally through the shaft of the cutter-head.

This invention relates to an improvement in cuttingcircular or ring-mouldings, that is, circles of wood moulded upon their face, and such asare used forcabvinet and. other similar purposes, the object being to -cutter-head, of several cutters, each of which is an are von to the head, and alsoto grasp and hold the cutter, as seen in iig. 3, and so that the holder may be set anywhere Within range of the slot into which it is placed. A

In each of the tool-holders is arranged a cutter, F, which are constructed in the following manner:

On a circle-of' steel, of the proper diameter, I turn or form the face into reverse shape of the moulding to be produced, more clearly seen in g. 3. Then the ring I cut into several pieces, eachpiece to form a cutter. One end ofv eachI grind oi so as to leave a cutting-edge, as seenin Eg. 1, and place the cutter in the holder, the said cutting-edge in advance, and slightly raised, as seen in fig. 2. 'Then I arrange in connection with the cutter,either upon the same holder, as represented by thecutters upon the slot D, near the cuttingend, or in the slot in advance of the cutter, as repre- 'sented at G, gl, which are the spurs forthe cutters in the slot C.

In this manner Iarrange opposite cutters to travn erseinv the same line, to dress the same moulding.

This I do -by preference, as each cutter may dress a separate surface, one outside ofthe other. cutters dress four rings.

In practice I nd it important to hold the Wood to be cut at the centre.

For this purpose I arrange, through the hollow shaft B, a spindle, H, `which has upon its inner end ahead, I, adjustable axially in the shaft, and this I bring to bear upon -the centre of the wood when it is presented to the cutters.

By this construction I am enabled to dress several l rings at the same time, inythe rnostl perfect manner, and each 'successive ring exactly like f the one preceding it, and the skilled labor heretofore necessary for sharpening the cutters, is avoided, as the most inexpertworkman is able to grind the end of the said cut- If desirable, cutters. of different moulded. surfaces may be arranged in the head, so that one ring may be of one form, a second of' another, and so on.

Having fully described my invention,

What I claim as new and useful, and desire to secure by Letters Patent, is

' 1. Thearrangement, in revolviu'gcutter-heads, of the segmental-shaped cutters F F, so that one set of cutters will cut within the circle of another, and all made adjustable in the said head', substantially as and for the purpose set forth.

2. In ,combination with the above, the supportinghead I, arranged so as to operate substantially as set ANDREW P. oDHoLM.

forth.

Witnesses:

JoH'N E. EARLE, JOHN H. SHUMWAY.

Thus four p I

Images