US2226673A

US2226673A - Welder's chipper

Info

Publication number: US2226673A
Application number: US247126A
Authority: US
Inventors: Pierre Thomas St
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-12-21
Filing date: 1938-12-21
Publication date: 1940-12-31
Anticipated expiration: 1957-12-31

Description

T. STI PIERRE WBLDERS CHIPPBR Filed Dec. 2-1, 1938 Patented Dec. 31, 1940 UNITED Sims PATENT CE-f WELDER'S CHIPPER Thomas St. Pierre, Worcester, Mass. Application Dece'iirber 21, 1938, Serial No. 247,126 4 Claims. (or 15-5105) This invention relates to a chipper for use by welders in chipping the glazed surfaces of a previously formed weld in order to expose fresh surfaces for welding purposes.

The principal objects of the invention are to provide a convenient and easily operated chipper; to provide for the attachment of a brush directly to a chipper or hammer head, in such a. way that the brush will be rigidly located and that 10 the fastening of the brush will not take up much space or employ much metal, thus making the construction more economical, and to provide the brush in a readily removable condition so that it can be replaced very easily when the i brush is worn.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanyin drawing, in which Fig. 1 is a side view of a complete welders chipper with a brush attached to it in accordance with this invention;

Fig. 2 is an end view looking in the direction of the arrow 2 in Fig. 1:

Fig. 3 is a side view of the brush itself detached from the chipper;

Fig. 4 is a plan of the same;

Fig. 5 is a sectional view on the line 5-5 of Fig. 1, and

30 Fig. 6 is a sectional view on the line 6-6 of Fig. 2 on enlarged scale.

As is well understood in this art, it is neces- 'sary in some operations of welding to chip off the very hard scale which forms over a weld on account of the welding flux, if it is desired to do any further welding at that point. It is also desirable, in order to remove thesoale and havea smooth surface, to brush the same surface'with a wire brush, which usually is done bya separate implement. This makes it necessary to have two implements, which are likely to get out of place.

In this case an ordinary chipper or hammer head III. with a handle II, is employed without.

much change from the ordinary hammer used for this purpose. Also, the wire brush l2 is mounted These bars pass l5. These two plates are secured together by two flanges. IS on the opposite ends of the plate l3 which engage the under side of the ends of the plate l5. They have inwardly extending flanges I! to hold the structure together in a box-like form.

At both ends this box is completed by two flanges l8 on the ends of the plate l3, which are bent at right angles to cover the structure. The plate I5 is provided with a projecting flange 20 at the hammer end of the instrument which extends over the extreme surface of the head. The head is perforated to receive a tightening screw 2| which is fixed by a nut 22 on the other side of the head Hi. In this way it is firmly fixed to the head and even the loosening of the handle ll would not be very apt to loosen the, brush casing.

The brush casing is further anchored to the handle by a pair of brackets 23 which have flanges 24 coming over the side walls l6 and gripping them above by being turned inwardly over the surface of the plate l3. These two brackets are provided with suitable gripping jaws 25 to engage'and hold the bracket on the handle. The fastening means for these two brackets, which are identical but right and left handed, is simply a screw 21; and ,nut 28. By this means these brackets can be fastened up closely against the sides of the holder for the brush and the brush is rigidly held at two points a suitable distance apart so'it is permanently in position once it is mounted. However, these two screws can be loosenedfor removing the brush and replacing a new one when it becomes worn.

It has been customary to use a wedge which has to be pounded by a separate hammer, sometimes twohammers being used, but at any rate two tools. By the use of this invention the operation is greatlysimplifled and one unitary tool employed instead of three.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. As an article of manufacture, a welders tool having a head and handle, a brush casing,

bristles projecting from the casing away from the handle, said casing having a removable inner bottom wall to receive the bottoms of the bristles on its surface, which wall is provided with a flange 2. In a device of the character described, the

combination with a tool having a head and handle, a plate secured to the head, a sheet metal casing cooperating with and detachable from said plate to form a chamber to receive the heads of a series of bristles, one wall of said chamber being perforated, through which perforations the bristles pass, bars extending along said casing inside and holdingthe bristles, a pair of brackets, each one gripping one side of said casing and the other end gripping the handle, and means between said rear wall being separable from said brush casing, whereby the latter may be reversed with respect thereto and resecured in a manner to relocate the bristles remote from said head to a position adjacent thereto.

4. As an article of manufacture, a tool having a handle and a head at one end of the handle, a brush casing and means for removably attaching the brush casing to said handle to extend from said head down along said handle, said casing having a removable rear wall, a flange on said rear wall located so as to engage a face of said head remote from said handle, means securing said flange to said face, said brush casing being separable from said rear wall in a manner whereby said brush casing may be detached from said handle and reversed end for end with respect to said head.

THOMAS ST. PIERRE. 9.0