US2545931A

US2545931A - Stock cutting dowel forming tool

Info

Publication number: US2545931A
Application number: US2520A
Authority: US
Inventors: Samsky Abraham
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-01-15
Filing date: 1948-01-15
Publication date: 1951-03-20
Anticipated expiration: 1968-03-20

Description

March 20, 1951 A. SAMSKY STOCK CUTTING DOWEL FORMING TOOL Filed Jan. 15, 1948 Abraham Sams/ry INVENTOR.

* I BY Iii) v l atenteci Mar. 20, 1 951 UNITED STATES PATENT OFFICE STOCK CUTTING DOWEL FORMING TOOL I Abraham Samsky, Detroit, Mich. Application January 15, 1948', Serial No. 2,520

4 Claims.

The present invention relates to an improved tool which is adapted to cut and turn wooden and metal stock, cylindrical in form, into dowels for industrial and other purposes.

Briefly, the preferred embodiment of the invention is characterized by a single casting which is fashioned to produce a sleeve for reception of the stock to be cut and fashioned into a dowel, the sleeve being provided at one end with a cutter head and at the opposite end with a flati'ac'ed shank, the latter to assist in either holding the sleeve steady while the work is turned f r turning the sleeve in the event that the work is held steady.

An object of the invention is to provide a simple casting of the stated form which is constructed to accommodate insertable and removable metal rings, said rings being employed as adapters as well as gages, the holes in the rings serving to gage the size of a dowel which is to be cut and also serving to mark the points at which the cutting edges of the tools or cutters are to be set for cutting the stock to desired size.

Another object of the invention is to provide a sleeve having a cutter-head wherein an annular ledge isprovided as a feeding service for the interchangeable adapter, the; cutting tools being removably mounted in the-cutter head and the inner ends projecting into direct contact with the rings to maintain the latter securely in placei The principal object of the invention is to provide a simple, practical and efficient device or tool constructed along the lines indicated and which is such that the one tool may be employed to accommodate a plurality of standardized adapter rings, whereby to permit metal and wooden rounds to be out, reduced in diameter and thus turned into dowels.

Other objects and advantages will become more readily apparent from the following description in the accompanying illustrative drawings.

In the drawings:

Figure l is a perspective view of a stock cutting, reducing and dowel fashioning tool or device constructed in accordance with the principals of the present invention,

Figure 2 is a top plan view of the same,

Figure 3 is a view partly in section and elevation taken on the irregular line 33 of Figure 2, looking in the direction of the arrows,

Figure 4 is a perspective view of one of the insertable and removable adapter rings,

Figure 5 is a perspective view of one of the cutting tools or blades.

2 Y Referring now to the drawings by distinguishing reference numerals, the main casting, as a unitary device, is denoted by the numeral 1 and is characterized primarily by What I choose to call a sleeve 8. This has a principal cylindrical bore 9 and the outer end portion is counterbored and enlarged as at In to define the cutter head H. At the juncture of the main bore 9 and counter-bore IIJ an annular seating ledge I2 is provided and this serves to accommodate a plurality of standarized adapter rings I3. In the drawings is shown but a single ring, but in practice I will provide a plurality of rings all having their outer diameters I4 of corresponding gage so as to fit within the confines of the counter bore and to rest properly on the ledge I2. The inner peripheral edge l5, which defines a center hole will vary in diameter according to the size of the dowel which is to be cut. Incidentally, the stock which is to be cut is denoted by the numeral IS in dotted lines in Figure 3 and the larger portion is indicated at H and the finished and burnished dowel, which is fashioned from the stock and which is received in and extended through and beyond the bore 9 and is denoted by the numeral ls... The outer marginal portion of the head is provided with circumferentially spaced notches l9 and circumferentially spaced equi-distance non-circular passages 29 to accommodate the shank portions 2| of the cutting tools. The inner cut ting edges are denoted by the numerals 22 and in practice these cutting edges are adapted to be matched and accurately lined up with the edge [5 to accurately perform the cutting and reducing action. The cutting blades or tools are held in place by set screws 23. The exterior surface of the end of the sleeve opposite to the cutter head is fashioned into a flat-faced reduced shank 24 providing shoulder means at 25.

In practice the stock to be turned is held either in (A) a conventional type drill press chuck; or, (B) a lathe tail stock. In procedure (A) the de vice l is held either in the hand or a standard vise and the stock is brought down by the drill press arm. In following procedure (B) the device l is held in thehead stock of the lathe, power is turned on and the tail stock brought forward, forcing the stock through the cutters and central opening in the adapter or wear-ring I 3. Burnishing is accomplished by the inner peripheral edge 15 of the adapter.

The device is unique in that changing the wear ring or adapter l3; that is using rings of different hole sizes in the cutter head, and aligning the three cutting blades with the edge of the hole [5, dowels l8 of different sizes can be fashioned from the one tool. Incidentally this device can also be mounted on a bracket attached to a motor and be used as a so-called production tool.

Briefly summarized, the invention is characterized by a sleeve of appropriate length whose central or body portion is cylindrical, there being a reduced fiat faced shank at one end and a radial or outstanding cutter head at the opposite end. The bore through the body is uniform and, at the head end, the bore is counterbored to provide a recess and to, at the same time, define a ledge for seating an adapter ring. The ring is confined in the recessed part of the head and resides on the ledge and the rim portion of the head has circumferentially spaced slots to accommodate cutting tools. When the cutting tools are fitted through the slots they project into the recessed portion of the head and overlap the adapter ring. Thus, the tools are held in the rim portion of the head by set screws and the tools, in turn, serve to lock the adapter ring in place by seating and retaining it on said ledge.

A careful consideration of the foregoing description in conjunction with the invention as illustrated in the drawings will enable the reader to obtain a clear understanding and impression of the alleged features of merit and novelty sufficient to clarify the construction of the invention as hereinafter claimed.

Minor changes in shape, size, materials or rearrangement of parts may be resorted to in actual practice so long as no departure is made from the invention as claimed.

Having described the invention, what is claimed as new is:

1. A stock cutting and reducing device for fashioning dowels comprising a sleeve for reception and passage of the stock to be out, said sleeve having a recessed cutter-head at one end, an insertable and removable adapter ring fitted in the recess in said head, and radial cutting tools removabl mounted in said head and projecting into said recess, said cutting tools resting in firm retentive contact with said adapter ring and serving to maintain same in place in said recess, and said adapter ring serving as a gage for purposes of setting the positions of said tools and determining the cross-sectional diameter of the finished dowel.

2. A stock cutting, reducing and transforming device for forming dowels comprising a sleeve having a reduced externally fiat-faced shank at one end, an outstanding cutter-head at the opposite end, said sleeve and cutter-head being internally bored to provide an inlet annular ledge, a removable adapter ring seated on said ledge, the outer diameter of the adapter ring being pre- 4 determined and the diameter as a whole of the ring also being predetermined, said cutter-head having a rim provided with circumferentially spaced radial slots, and cutting tools mounted in said slot, the inner ends of said tools overlapping said rings and holding the latter firmly in place on said ledge.

3. A stock cutting, reducing and transforming device for forming dowels comprising a single casting embodying a sleeve having one end reduced and externally fiat faced to provide a shank, having the opposite end enlarged to provide a circular cutting head, said cutter head being recessed and embodying a circular ledge, the bore of the sleeve opening into said recess, said cutter head being provided at circumferentially spaced points with tool slots, cutting tools removably fastened in said slots and having their inner cutting ends projecting into said recess in parallelism with said ledge, and an adapter ring seated on and interposed between the ledge and cutting tools, the cutting tools serving as the sole means for holding the adapter ring in the recess on the ledge.

4. A stock cutting, reducing and transforming device for forming dowels comprising a single casting embodying a sleeve having one end reduced and externally fiat faced to provide a shank, having the opposite end enlarged to provide a circular cutter head, said cutter head being recessed and embodying a circular ledge, the bore of the sleeve opening into said recess, said cutter head being provided at circumferentially spaced points with tool slots, cutting tools removably fastened in said slots and having their inner cutting ends projecting into said recess in parallelism with said ledge, and an adapter ring seated on and interposed between the ledge and cutting tools, the cutting tools serving as the sole means for holding the adapter ring in the recess on the ledge, the combined thickness of the cutting tools and adapter ring being less than the depth of said recess.

ABRAHAM SAMSKY.

I file of this patent:

UNITED STATES PATENTS Number Name Date 448,764 Jones Mar. 24, 1891 655,095 Land July 31, 1900 679,540 Packer July 30, 1901 811,027 Barlow Jan. 30, 1906 FOREIGN PATENTS w Number Country Date 13,048 Switzerland Aug. 25, 1896