US2162165A - Shaping tool - Google Patents

Description

J. E. GABEL June 13, 1939.

SHAPING TOOL Filed May 15. 1938 Inventor IE gafie/ By 9mm A itorneys Patented June 13, 1939 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to shaping tools, and has for the primary object the provision of an efficient, durable and inexpensive device which, through minimum amount of effort on the part of the operator will reshape tubes made of copper or similar material, that is, a tube which has been flared or made out of shape from any cause may be accurately restored to its original diameter without danger of damage or breakage.

With these and other objects in View, the invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is an end view illustrating a shaping tool constructed in accordance with the present invention.

Figure 2 is a side elevation illustrating the tool.

Figure 3 is a sectional view taken on line 3-3 of Figure 1.

Referring in detail to the drawing, the numeral l0 indicates a body of hexagonal shape providing a series of angularly related faces H. The faces H are flat'so that they may be struck a hammer blow. The body has a bore l2 and a plurality of bores l3 in communication with the bore l2 and opening outwardly through the faces H. The

, various bores of the body are of different diameters. Each bore I3 as it opens outwardly through its respective face II is flared, as shown at [4. One end of the bore I2 is flared, as shown at I5. The bore [2 adjacent its opposite end is restricted by an inwardly extending flange IE forming an integral part of the body. The flange 16 reduces the diameter of the bore l2 and thereby forms another bore, indicated by the character l1, opening outwardly through one end of the body and having said end flared, as shown at [8.

The body is constructed from a suitable metal capable of withstanding excessive strain and hammer blows.

The tool is employed as follows: A tube made of copper or some other similar material which has had its end flared to receive a tube fitting and it is desired to restore the flared end to the original diameter of the tube, the flared end is positioned in one of the bores of the body which is of a diameter corresponding to the original diameter of the tube. The flared end is worked into the flared end of the selected bore until the body has a tight fit with the tube. The body is then struck a hammer blow upon the face opposite to the face in which the bore opens outwardly through, causing the body to be driven onto the tube. As the body moves over the tube, the flared portion is contracted bringing or restoring the tube to its original diameter. Tubes which have been bent or mutilated to the extent of having bulged portions may also be restored to their original diameter in the same way as described relative to restoring a flared end of a tube. The various bores of the body being of different diameters as clearly shown in the drawing permit a wide range of use of this tool on tubes of a great number of different diameters.

It is believed that the foregoing description, when taken in connection with the drawing will fully set forth the construction and advantages of this invention to those skilled in the art to which such a device relates, so that further detailed description will not be required.

What is claimed is:

A shaping tool comprising a body having a plurality of angularly related flat striking faces and opposed end flat faces, said body having a bore of difierent diameters extending from end to end through the end faces and provided with flared ends in said end faces, said body being further provided with bores of diiferent diameters communicating with the first-named bore and opening outwardly through said angularly related faces of the body and each having a flared end to receive a flared end of a tube to permit positioning of the body on the tube so that said body may be struck a hammer blow on the face opposite to the bore receiving said tube for forcing the body onto the tube and thereby bring about contraction of the flared end of the tube to a diameter corresponding to the original diameter of the tube.

JOHN E. GABEIL.

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