US811786A - Tool-holder. - Google Patents

Description

H0- 8l1,786. PATENTED FEB. 6, 1906. P. P. MILLER. TOOL HOLDER. nrmenmx Hum 1.15, 1004.

reception of but one cutting-too UNITED STA'IBIS PATENT OFFICE.

TOOL-HOLDER.

Specification of Letters Patent.

Patented Feb. 6, 1966.

Application filed March 15, 1904. Serial No. 1933'.

To all whom it TIL-(11y concern.-

Be it known that I, FRANKLiN I. MILLER, a citizen of the United States, residing at Bloomfield, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Tool-Holders, of which the following is a specification.

My invention relates to tool-holders for lathes and other machines where a cuttingtool has to be supported; and it consists of a block contracted toward one or both ends, having one or more side sockets with means for holding a tool and securing it in desired positions therein and adapted to also support the carrier for a boring-tool, as fully set forth hereinafter and as illustrated in the accompanying drawings, in which- .V Figure 1 is a side view of a holder for a sinle tool; Fig. 2, an edge view of the same; ig. 3, a plan view; Fig. 4., a perspective view of adoubleholder or one adapted for su porting two tools. Fi 5 is a side view of a fielder shown in Fig. 4; I" 6, a plan showing the holder of Figs. 4 and 5 in its relation to the work in different positions; Fig. 7", a side view of a carrier for a boring-tool adapted for use with the holder; Fig. 8, the same in part section ap lied to a holder and carrying the boring-too Fig. 9, a plan of a carrier and its horingtool.

The tool-holder consists, essentially, of a heavy block A, which may be adapted for the support of one or more tools B and which has an elongated recess 1 for the reception of the usual post 0, which may be applied to the bed or movable carrier D of a lathe. The block is beveled or contracted at one or both ends-that is, it is ta ered in a plane transverse to the axis of t 1e pcst-and at one or more sides of this block are sockets 3, each of which is inclined upward and outward to permit the tool to be presented at an angle with its edge against the material, while the holder occupies a low position and is therefore more solid and rigid. Each socket has a rounded lower face 4, adapted to the rounded lower face of a shoe 5, which may therefore be set at different angles, according to the an is at which the tool B is to be set, the sai tool resting upon the u per face of the shoe within the socket and sing secured after adj ustment by means of any suitable securing device as, for instance, a set-screw 6.

In the construction shown in Figs. 1, 2, 3 the holder is single -that is, adapted for the In Figs.

4, 5, and 6 is shown a construction adapted for receiving two tools. In either case it will be seen that by providing a heavy block with a socket at one side it is possible to make use of a tool consisting of a plain block of steel capable of being shaped without forging and which will he supported almost to its cutting end within the socket of the block so as to be rigid and unyielding, avoiding the ob jcctions incident to the spring of the tool or the holder. I can therefore use a very much smaller amount of metal, as the tool as it wears may be ground and reground and fed forward until but a small portion of the stock remains. The common forged tool is very wasteful of both labor and steel, as the forging shapes only a small part of the stock, and thls alone is used for cutting purposes.

A heavy block of metal contracted toward one or both ends, as described, and having a recess, which may be round or elongated, adapted to receive the post of a lathe, not only affords a firm support for the tool, but owing to its ointed end permits the tool to he supporte at points close to the head or shoulder of the lathe and to be introduced into parts of the work where heretofore it has been necessary to employ tools supported so far from their ends that the spring of the tool has roduced imperfect work, resulting in the reaking of the tools and limited speed of o oration. By the use of a pointed block of t 10 character described with the socket at one side the tool can be supported almost to its cutting edge by a support which is practically rigid and unyielding, and when the block has an elongated recess the holder may be shifted upon the post to carry the tool back and forth and present it to the work at any desired angle.

When the holder is double, as shown in Figs. 4 and 6, it may be swung upon the post to different osit-ions, as indicated in Fig. 6, bringing sit or tool into operation upon the work. In this case the two socketed sides meet at an angle, so that either tool can be brought more nearl parallel with the article bein cut or with the axis of the lathe than we d be ossible if the tools were in line.

While t e holder is adapted especially for use with tools made of simple bars ground to shape, it may of course be employed in connection with various forms of tools.

I For use in connection with boring-tools I employ a socketed carrier E, (shown in Figs. 7, 8, and 9,) the said carrier having a recess 8 to receive the stem 9 of the boring-tool F and with set-screws or other securing devices 10, and at the side of this carrier is a wing 12, which is preferably inclined, as shown, and which may be inserted in the socket of the holder A and rest upon the shoe and be adjusted to different angles and secured in the same manner as the tool B. It will be obvious, of course, that this carrier E may be of different shapes with sockets of different shapes, according to the character of the boring-tool to be used.

Without limiting myself to the precise construction shown, I claim 1. A tool-holder consisting of a block recessed to receive a post to secure it to the bed or carrier of a lathe, tapered in a plane transverse to the axis of the post, and provided with a side recess and means to secure a tool in an inclined position therein, substantially as set forth.

2. A tool-holder consisting of a block recessed to receive a post tapered at each end in a plane transverse to the axis of the post, forming converging side faces, with an inclined recess in each face, and means for securing atool therein, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANKLIN P. MILLER.

Witnesses:

(lnAs. J. MoDERMo'rT, CnAs. L. THATOIIER.

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