USRE15268E - Metal-working tool - Google Patents

Description

H. R. KENNEDLY. mam WORKING TooL.

APPLICATION FILED NOV. 15.192].

Reissued Jan. 17, 1922.

INVEN TOR,

Hams r 7? Ken ned A TTORNEY.

" bumps or indentations to be described con- UNITED STATES PATENT OFFICE.

, HOMER R. KENNEDY, OF LOS ANGELES. CALIFORNIA, ASSIGNOR, BY MESNE ASSIGN- CALIFORNIA.

MENTS, T0 JOSEPH J. MATHE A ND STANLEY O. WOOD. BOTH OF LOS ANGELES,

METALWORKING TOOL.

Specification of Reissued Letters Patent. fleissugd Ja 17, 1922.

Original No. 1,316,451, dated September 16, 1919, Serial No. 286,192, filed March 29, 1919. Application for reissue filed November 15, 1921.

To all whom it may concern:

Be it known that I, HOMER R. KENNEDY, a citizen of the United States, residing at Los Angeles; in the county of Los Angeles and State of California, have invented new and useful Improvements in Metalorking Tools, of which the following is a specification.

This invention relates to metal-working tools, and particularly to tools for removing bumps or indentations in fenders, door panels, tonneau. cowls, etc., without injury to the enamel of said members.

At the present time whenever a fender or other metal part of an automobile is damaged through any cause said part is usually straightened by a rocess known in the art as hand-peening. his process consists of placing a template or some form of stake-head under the damaged surface of the sheet metal. and pounding upon the top surface with a hammer. As will be readily understood, pounding chips and cracks the enamel. and while the surface may be entirely smooth when the job is finished, yet hand-peening is at best a long and laborious task. l 'snally when a fender, or other sheet metal part of an automobile is damaged. as for instance. a fender, door, etc., the said part is removed from the automobile, and the work done in a sho with the consequent result of delay an resulting expense to the customer. The method of removing sists of a simple arrangement of members and parts whereby the necessity of handpeening is eliminated, and any indentation may be removed from the metal within a minimum of time and effort, with the said part restored to its original form.

\Vith the above and other objects in view. the invention consists in the novel and useful provision. combination, formation. association and interrelation of parts. members and features. all as hereinafter described. shown in the drawing. and finally pointed out in the claims.

Fig. l is a side elevation of the frame and certain features of a sheet metal-working tool or device constructed in accordance with my invention and adapted to be utilized. as for example. in the manner shown in Fig. 2. for shaping elements in other figures of the drawing:

Serial No. 515,381.

Fig. 2 is an enlarged view of fragments of the frame shown in Fig. 1 showing shaping elements applied thereto.

Fig. 3 is an elevation of a pressure bar member carrying rocking feet, which member is used in practicing one embodiment of the invention;

Figs. 4 and 5 illustrate shaping elements;

Fig. 6 is a fragmentary view, certain parts being in section, of the tongs, showing the T-headed pressure bolt which is used for moving the tong arms toward each other, such view being taken on the line 6-43 of Fig. 1;

Fig. 7 is a view looking in the direction of the arrow 7 at the righ-hand side of Fig. 1. showing the hinged connection of, the frame members of the metal-working tool;

Fig. 8 is an end view. of a stake-head or metal shaping element;

Figs. 9 and 10 are side and end views of another form of stake-head;

Fig. 11 is a cross sectional view of one of the pressure feet shown in Fig. 3, and taken on the line 11-11 of- Fig. 3, and looking in the direction of the appended arrows;

Fig. 12 is a fragmentary, perspective and partly cross sectional view of one of the arms of the metal-working tool shown in Fig. l: and,

Fig. 13 is a fragmentary View of the T- headed pressure bolt shown in Fig. 1.

Corresponding parts in all the figures are designated by the same reference characters.

Referring now with particularity to the drawing:

A designates the frame or tongs member, B the pressure or clamping bolt, C the pressure bar. D and E forming or shaping elements. F pressure feet. which may be utilized with the pressure bar C. G and H stakeheads. and J a sleeper iron washer. all of which elements may be utilized in practising one embodiment of the invention.

The tongs or frame A includes two arm members a and 7) hinged together. as at l.

- This hinged connection is best illustrated in Fig. 7, in which it will be seen that the arm member 7) is provided with a forked or bifurcated extremity. while one extremity of the arm member a. is'received between said bifurcations. A bolt member 2 passes through openings in the bifurcated member. and through an opening in the member a,

, so that the member a may be securely held connection are shown as curved; however,

I do not wish to confine myself to the particular shape of tongs illustrated. as many other shapes-might be utilized. The free ends of both arms a and b are enlarged and provided with transverse openings '4, and these openings areadapted to receive parts of various forming. members to be described. The top surface of the arm a is serrated, as shown at 3, and both arms a and b are longitudinally slotted, as shown at q in Figs. 6 and 12. The pressure bolt B is provided at one end with a flanged T-head f, and the other end thereof is screw threaded, as shown at 5. The pressure bolt B is adapted to extend between the arms a and b and through the slots thereof, with the flanged T-head f of said bolt transversely straddling the top surface of the arm a. as shown in Fig. 1. Adapted to Screw thread upon threads 5 of the bolt B is a ball-headed tail nut 0, the 'ball head being shown at 6, and

the ball head 6 is adapted to bear against a surface of a sleeper iron washer J (see Fig.

6). Thesleeper iron washer J is provided mem ' are with a bossed or enlarged portion 7, which is formed with a concavity adapted to receive the ball-headed portion 6 of the tail nut c. The ball head 6 is slightly smaller than. the concavity in the washer J, so that there may be-a rocking motion between the washer and the tail nut. The sleeper iron washer is likewise provided with flanges 8, and is adapted to transversely straddle the arm 5, with the flanges 8 engaging the sides of the arm 6 to guide movement'of said washerJ.

In utilizing the invention, stake-heads G H, forming or roller members D and E, as well as the pressure bar C, with its feet F, provided. Each of the members just mentioned is provided with stump tenons 10, having converging sides. These tenons 10 are adapted to be received and fit within a the openings 4 of the arms a and b of the tongs or frame A, and said tenons in each case r just mentioned. ,The openings 4 are tapered so as to confine the tenons. and so that the tenons may be easily forced within the openings and removed therefrom when desired by tapping-the members a and b. i

If it were desired to remove a concave. indentation contained 1nthe top surface of.

, an automobile fender, one of the forniing members shown in Fi s. 4. 5 8 and 9 would -have its tenon received within the opening 4 of the arm I), and would be used on the under surface of the fender at the indented portion, and thepressure feet F would en gage the topsurface of the fender on oppop'ojects from thebase of the respective site sides ofthe indentation. Each pressure foot is provided with eyes 12 which are looselyreceived on the arms or reduced ends (I and e of a pressure bar C. The center 1 portion of the pressure bar is shown as slightly enlarged and provided with a tenon 10 which is received in. the opening 4 of the faces, so as to conform in part withthe curvature of any member upon which they may rest. as for instance, a fender, and the said concave surface may be covered with some soft material 13. such as rubber, to prevent scratching of the enamel on a fender or other object. A

i The forming members shown in Figs. 4 and 5, which are rollers, are complemental in formation, one of said rollers, as 14, hav-. ing a concave surface, while the other roller, 15. is provided with a convex surface. Each member, 14 and15, is carried by a yoke member 16. The body of each member 14 and 15 is provided with a longitudinal bore and a shaft member 17 carriedby each yoke arm passes through said bore, so thatthe mem-.

to have the axis of the member 14 or 15 either extend outwardly of or rearwardly of the outer end of the said tong arm a or b.

This arrangement is illustrated in Fig. 2, which shows the two' positions of thememhers D and E.

The stake heads G and H may be used in practicing certain embodiments ofmy invention, and the said stake heads may be in many forms, adapted for the work to be performed. g

In operation, if it is "desired to remove an indentation in an automobile fender, the pressure bar C would have its tenon inserted in the opening 4, on one or the other of the arms a and b. In the op osite opening 4 on the other arm of tie tongs. is placed a stake head G or H, or, if desired. one of the members D or E. If we assume. for the present, thatthe indentation is very deep, we choose the stake head G. The arms a and b are released so that they may be separated and the flanged head f of the pressure bolt is turned so that saidhead may slip through the slot -in the arma. The arm of the tongs which carries the pressure bar C is then so placed that the feet F Flanged ends 11 on the arms d carried by said bar rest on the top surface of the fender. The tongs device A is then closed with the stake head Gr directly under the deepest indentation and the T-head of the pressure bolt B is slipped through the. slot 9 of the arm a; and turned so that said T-head straddles the arm a and rests in a depressed portion of the serrations 3. This will help prevent the pressure bolt from slipping during operation of the tongs.

The sleeper iron washer J is now brought into position so that its flanged sides 8 engage opposite sides of the arm b. The tail nut c is then rotated so as to draw the free end portions of the arms a and b of the tongs A together. This of course tends to press the indented portion of the metal upwardly by bringing the stake head into a forcible engagement with said indentation. At a given point, the tension on the bolt B- is released by unscrewin the tail nut 0, the T-head of the bolt E is then turned parallel with the slot in the arm a, and

. manipulated in an up and down direction or upwardly and downwardly oscillated, which movement communicates a rotary motion to the forming member D, or E, that will iron out or bend the indented portion of the metal fender back to approximately its original shape- A method similar to the above consists in placing the members D and E in the openings 4 of the tongs A. The convex member D is usually placed 11 on the concave surface of an automobile ender, while the concave member E is placed upon the convex surface of the fender. The arms a and b are again brought together, as above described. so that the members D and E tend to grip the fender between them. A reciprocal movement back and forth of the tongs A causes the members D and E to simultaneously roll the indentation and re move any unevenness from. the fender without injury to the enamel on said fender.

Obviously, many combinations of forming members and stake-heads may be used. depending. as before mentioned. on whether the indentation is in the fender. body. door panel, tonneau or cowl of the automobile. The exact shape of the forming members and the stake-heads, in and of themselves, is not a feature of the invention.

From the foregoing explanation of the uses of the new tool it will be observed that one of the distinguishing features of the present invention is that the manually operarticles able frame is formed between its arms with a relatively large opening which permits it to straddle the metal body and to be shifted in varying directions to promiscuously located damaged areas of the metal body.

While I have hereinbefore specificall described my invention in its several pl iases only with reference to the particular embodiments thereof which are illustrated in the drawing, it will be understood that the invention is in principle equally applicable to any sheet metal surface used on any vehicle, and further that it can be variously modified in its various details within the scope of the appended claims, without departing from the spirit or sacrificing the advantages thereof.

Having thus disclosed my invention, I claim and desire to secure by Letters Patent:

1. A tool for removing indentations from sheet metal articles, including a manuallyoperable frame having a relatively-large opening permitting it to straddle the metal body and to be shifted invarying directions to the location of a damagedarea, opposing shaping elements carried by the frame respectively on opposite sides of the damaged metal area. and pressure applying means carried by th frame.

2. A tool for removing indentations from sheet metal articles, including a manuallyoperable frame having opposing arms adapted to carry complemental and interchange able shaping elements, said frame also being adapted to straddle the said metal body and to be shifted to promiscuously located damaged areas thereof, means for remova ably attaching the interchangeable shaping elements, and pressure-applying means.

3. A tool for removing indentations from sheet 'metal articles, including a manuallyoperable frame, complemental concave and convex sha )ing rollers fitted to the frame in opposed relation and adapted to be disposed respectively on opposite sides of the damaged part, and pressure applying means.

4. A tool for ironing indented sheet metal including a manually operable frame carrying opposing ironing elements shaped to permit of rocking and reciprocal movements over the damaged metal part.

A tool for ironing indented sheet metal articles including a manually operable contractible frame adapted to be placed astride the metal body, oppositely disposed ironing elements carried by the frame and shaped to permit of rocking and'reciprocal movements over the damaged metal part, and means for placing said frame under adjustable compression.

6. A tool for removing indentations from sheet metal articles, including a manually with pivotally operable frame formed mounted arms which are adapted to span the damaged portion-of the sheet metal and are movable toward and away from each u other, complemental shaping elements applied to the arms in an opposed relation to each other, and a clamping bolt connecting the arms and adjustable longitudinally into different positions thereon, said clamping bolt providing a means for forcibly swing- 10 ing the arms toward each other to bring the shaping elements into a propel engagement with the indented portion of the sheet metal article.

In testimony whereof, Ihave signed my name to this'specification in the presence 1 5 of two subscribin Witnesses,

7 H0 ER R. KENNEDY.

Witnesses: v t l J. CALVIN BROWN, J, Sno'rr.

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