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US2543347A - Sheet metal working tool - Google Patents

Sheet metal working tool Download PDF

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Publication number
US2543347A
US2543347A US56284A US5628448A US2543347A US 2543347 A US2543347 A US 2543347A US 56284 A US56284 A US 56284A US 5628448 A US5628448 A US 5628448A US 2543347 A US2543347 A US 2543347A
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tool
lever
sheet metal
turret
dented
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US56284A
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Frank R Bartlo
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06Removing local distortions

Definitions

  • This invention relates to sheet metal working tools and more particularly to an automobile body bucking tool adapted to aid in the straightening of dented turret tops of automobiles and the like.
  • sheet metal working tools are employed to bend the sheet metal outwardly to approximately its original position and for thereaiter hammering or dinging the sheet metal into a smooth condition approximating its original shape.
  • This work is usually done in a body and fender repair shop and in these shops improvised tools are employed for bending the turret top outwardly to approximately its original shape.
  • the usual practice is to utilize an automobile jack or the like and a plurality of blocks to give the jack the desired height and by manipulating the jack against the inner side of the I turret top, to force the sheet metal dented portion outwardly. No suitable tool has been available for use in performing this repair operation.
  • Another step in the repairing of a dented portion of an automobile turret top is the smoothing of the sheet metal after it has been bent outwardly to its approximate original shape. This is usually accomplished by one workman holding,T a buck. usually in the form of a large block of metal,- against the inner side of the dented portion of the turret top and another workman hammering or clinging the outer surface thereof.
  • This practice is quite unsatisfactory in that the workman holding the buck against the inner side of the top cannot maintain it accurately in position nor exert suiiicient pressure to prevent inward bending of the metal while it is being dinged.
  • Another objection to this method or" smoothing the sheet metal is that the services of two workmen are required to perform the operation.
  • Another object of the invention is to provide a body bucking tool which may be positioned and actuated from the exterior of the body of the automobile whereby only one workman is required for the clinging operation.
  • Another object of the invention is to provide a tool of the type described that is economical to manufacture and in which the buck thereof is c.
  • a still further object of the present invention is to provide a body tool having a buck member in which the angular tilt of the buck member is automatically regulated to conform the attitude of said member to the surface of a work piece engaged.
  • 1Eig. 1 is a vertical transverse sectional View through an automobile body having a turret top showing a tool of the present invention located therein and in position for bending a dented portion of the turret top thereof outwardly.
  • Fig. 2 is a somewhat enlarged elevational View of the tool with a tubular supporting member thereof partially in axial section.
  • Fig. 3 is a fragmentary top plan view of the tool.
  • Fig. 4 is a fragmentary vertical sectional View of the top portion of the tool taken along line /i-li in Fig. 3.
  • Fig. 5 is a fragmentary vertical sectional view through a top portion of the tool taken along line 5 5 in Fig. ll.
  • an automobile body is shown generally at l having a turret top il and a floor l2.
  • rPhe turret top is illustrated as having an inwardly bent portion i3 which is characteristic of a common injury to turret tops.
  • a tool or buck of the present invention is indicated generally by the reference number lll and positioned in the automobile body iii in a location for manually bending the dented portion i3 of the turret top outwardly thereby.
  • Figs. 2 to 5 inclusive The details of the tool are illustrated in Figs. 2 to 5 inclusive, and in Fig. 2 the tool is illustrated as having a foot l made in the form of a metal plate circular, rectangular or of any other suitable form, and ball it secured centrally thereto and upwardly extended therefrom.
  • the tool is provided with a substantially erect tubular post i8 which has a plug lil welded thereon at 2li near the lower end thereof with a short length of tube extending therebelow.
  • the ball l is located within the lower end of the tube it and the end or" this tube is spun or crimped annularly inwardly at 2i forming a ball socket in conning relation to the ball.
  • the ball 'Vi and the socket formed in the lower end of the post I4 comprise an articulate connection of the post to the foot l5 whereby the post is supported on the foot for universal movement.
  • the post may be secured to the foot in any other desired manner, even as by welding the post rigidly thereto without departing from the spirit or the scope of the present invention.
  • the foot may be dispensed with entirely and the post rested directly on a supporting means, such as the floor i2, support blocks, or other suitable supporting member.
  • a rod having peripheral screw-threads 25 formed therein is telescopically received into the upper end of the tubular member I8.
  • a knurled nut 2 is scre.vthreadedly received on the rod Z5 in abutting relation with the outer end of the tubular post It whereby the longitudinal extension of the rod 25 and of the tubular post i8 may be regulated by rotating the nut
  • the upper end of the rod 25 is provided with an integral pivot block i which is slotted downwardly at 3i from the upper end thereof forming a bifurcated yoke or clevis 32.
  • the bottom of the slot 3i is formed into an upwardly extending, centrally disposed, pyramidal or conical shaped projection 35.
  • a lever 35 of the rst class, made of a length of bar metal, rests between its ends on the vertex of the projection 35 and is adapted to rock both longitudinally and transversely thereon.
  • a recess 3? is formed inwardly from the upper edge of the lever 36 opposite the point where the lever rests on the projection 35.
  • a headed pin 38 extends through the two legs of the yoke 3;' and also through the recess 37.
  • a cotter pin 33 is employed to hold the pin in position thereby retaining the lever in the slot 3
  • the lever 35 is located on the projection 35 with a longer manually operable end 44 thereof formed with a hand grip portion 4i adjacent the outer end thereof. Said longer end 43 is preferably downwardly offset to permit convenient extension thereof outwardly from the car body i3, as through an open door or window.
  • the shorter end 44 of the lever 36 is bent into the form of a longitudinally located loop 45 forming a vertically extending socket 4B therethrough.
  • a dolly block 48 in the form of a substantially rectangular metal member, is provided with an integral downwardly extending rectangular shank 49 which extends downwardly into the socket 4S with a loose iit therebetween whereby the dolly block is rested upon the upper surface of the lever 3-3 and may rock thereon.
  • the upper outer surface of the loop 45 is formed arcuately at 5G to facilitate this rocking motion of the dolly block 48.
  • the upper surface of the dolly block 48 is preferably formed to a convex arcuate shape 5I whereby it will conform somewhat with the interior curvature of the turret top of an automobile. So mounted on the lever 36, the dolly block is conveniently and easily removed for t ie substitution of dolly blocks of other sizes, weights, and configurations.
  • the tool may be used in the manner illustrated in Fig. 1.
  • the foot l5 is located on the floor l2 of the automobile body l0 with the tubular post I8 tiltably supported thereon.
  • This tiltable relation between the foot i5 and the tubular member I8 allows the foot to rest on the floor of the automobile body regardless of unevenness of the floor and allows the tubular member to be located angularly thereto for the proper location of the dolly block against the dented portion of the turret top. This further facilitates the imparting of desired forces to the top at angles best suited to the effective removal of dents.
  • the dolly block 48 is located against the dented portion I3 of the turret top Il with the longer portion 46 of the lever 36 extending exi teriorly of the body of the automobile either through a door opening or through a window opening.
  • the nut 21 is adjusted to raise or to -lower the pivot block 3D whereby the proper height and angularity of the lever portion may be obtained for the most advantageous operation.
  • the operator by forcing downwardly on the lever portion 4U, moves the dented portion of the turret top outwardly to the desired approximate original position thereof by forces transmitted thereto by the doly block 48.
  • This outward bending loperation may be repeated at a number of locations until the top is bent outwardly to its approximate original shape.
  • the tool may be used to aid in smoothing the dented metal by locating the tool, approximately as shown in Fig. l against the dented portion I3 and by applying downward pressure on the lever portion 4Q, moving the dolly block fcrceably upwardly against the inner surface of the turret top.
  • the dolly block 48 is readily held in its most effective position ,f forceably against the inner surface of the turret f the smoothing operation, the dolly block is provided with a relative rocking motion on the loop and automatically tilts to an even contacting position against the inner surface of the dented portion of the turret top.
  • the dolly block is permitted to rock both longitudinally and transversely on the shorter lever portion 44 whereby it will have even contact against the dented portion of the turret top.
  • the lever 3S being supported on the pyramidal projection 35 in the pivot block 33, permits pivotal motion of the lever for forceably moving the dolly block 48 against the inner side of the turret top and also permits the lever to rock transversely and longitudinally allowing the dolly block 48 further to adjust its attitude in conformity to the inner surface of the dented portion.
  • a body metal working tool has been devised in which a dented portion of a turret top of a car or other portion thereof can be conveniently urged to approximately its original shape and in which the buck or dolly block thereof may be conveniently held against the inner surface of the dented portion while being hammered during the smoothing operation by a single workman. It will also be seen that a tool has been devised which automatically accommodates itself in attitude to an engaged surface and which is conveniently forced against a dented portion with even contact thereagainst.
  • a body tool comprising a base plate having a ball upwardly extended therefrom, a substantially vertical tubular post having socket in the lower end thereof mounted on the plate for universal movement by engagement of the ball and socket, a screw-threaded rod telesoopically received in the upper end of the tubular supporting member, a nut threadedly f received on the screw-threaded rod and in abutting relation with the upwardly extended end of the post adjustably regulating the telescopic relation of the post and rod, said r-od being slotted inwardly from the upper end thereof forming a biiurcated yoke and the bottom of the slot being provided with an upwardly extending projection, a lever rockingly rested between lits ends on the projection within the yoke, means for preventing withdrawal of the lever from the yoke, said lever having a vertically located socket formed in one end thereof, and a dolly block supported on the end of the lever formed with the socket land having a shank eX- tending downwardly and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Description

Feb. 27, 1951 F. R. BARTLO 2,543,347
SHEET METAL WORKING TOOL Filed oct. 25, 194s .YX G. Snventor f W p (Ittomeg Patented Feb.. Z7, 1951 tlllFED STATE@ l Claim.
This invention relates to sheet metal working tools and more particularly to an automobile body bucking tool adapted to aid in the straightening of dented turret tops of automobiles and the like.
In the repairing of dented turret tops of automobiles, sheet metal working tools are employed to bend the sheet metal outwardly to approximately its original position and for thereaiter hammering or dinging the sheet metal into a smooth condition approximating its original shape. This work is usually done in a body and fender repair shop and in these shops improvised tools are employed for bending the turret top outwardly to approximately its original shape. The usual practice is to utilize an automobile jack or the like and a plurality of blocks to give the jack the desired height and by manipulating the jack against the inner side of the I turret top, to force the sheet metal dented portion outwardly. No suitable tool has been available for use in performing this repair operation.
Another step in the repairing of a dented portion of an automobile turret top is the smoothing of the sheet metal after it has been bent outwardly to its approximate original shape. This is usually accomplished by one workman holding,T a buck. usually in the form of a large block of metal,- against the inner side of the dented portion of the turret top and another workman hammering or clinging the outer surface thereof. This practice is quite unsatisfactory in that the workman holding the buck against the inner side of the top cannot maintain it accurately in position nor exert suiiicient pressure to prevent inward bending of the metal while it is being dinged. Another objection to this method or" smoothing the sheet metal is that the services of two workmen are required to perform the operation.
Therefore, it is an object of the present invention to provide a sheet metal working tool for forcing an inwardly bent portion of a turret top outwardly to its approximate original form and for backing the bent sheet metal portion while the sheet metal is dinged for iinal smoothing the metal.
Another object of the invention is to provide a body bucking tool which may be positioned and actuated from the exterior of the body of the automobile whereby only one workman is required for the clinging operation.
Another object of the invention is to provide a tool of the type described that is economical to manufacture and in which the buck thereof is c.
conveniently movable and held for bending the damaged portion of the turret top and for backing the sheet metal during the dinging operation.
A still further object of the present invention is to provide a body tool having a buck member in which the angular tilt of the buck member is automatically regulated to conform the attitude of said member to the surface of a work piece engaged.
Other objects and advantages of the present invention will become apparent from the following description taken in connection with the accompanying drawing in which,
1Eig. 1 is a vertical transverse sectional View through an automobile body having a turret top showing a tool of the present invention located therein and in position for bending a dented portion of the turret top thereof outwardly.
Fig. 2 is a somewhat enlarged elevational View of the tool with a tubular supporting member thereof partially in axial section.
Fig. 3 is a fragmentary top plan view of the tool.
Fig. 4 is a fragmentary vertical sectional View of the top portion of the tool taken along line /i-li in Fig. 3.
Fig. 5 is a fragmentary vertical sectional view through a top portion of the tool taken along line 5 5 in Fig. ll.
Referring to the details of the drawing and particularly to Fig. l, an automobile body is shown generally at l having a turret top il and a floor l2. rPhe turret top is illustrated as having an inwardly bent portion i3 which is characteristic of a common injury to turret tops. A tool or buck of the present invention is indicated generally by the reference number lll and positioned in the automobile body iii in a location for manually bending the dented portion i3 of the turret top outwardly thereby.
The details of the tool are illustrated in Figs. 2 to 5 inclusive, and in Fig. 2 the tool is illustrated as having a foot l made in the form of a metal plate circular, rectangular or of any other suitable form, and ball it secured centrally thereto and upwardly extended therefrom.
The tool is provided with a substantially erect tubular post i8 which has a plug lil welded thereon at 2li near the lower end thereof with a short length of tube extending therebelow. The ball l is located within the lower end of the tube it and the end or" this tube is spun or crimped annularly inwardly at 2i forming a ball socket in conning relation to the ball.
The ball 'Vi and the socket formed in the lower end of the post I4 comprise an articulate connection of the post to the foot l5 whereby the post is supported on the foot for universal movement. Although such a support for the post is advantageous, the post may be secured to the foot in any other desired manner, even as by welding the post rigidly thereto without departing from the spirit or the scope of the present invention. It is also to be understood that the foot may be dispensed with entirely and the post rested directly on a supporting means, such as the floor i2, support blocks, or other suitable supporting member.
A rod having peripheral screw-threads 25 formed therein is telescopically received into the upper end of the tubular member I8. A knurled nut 2 is scre.vthreadedly received on the rod Z5 in abutting relation with the outer end of the tubular post It whereby the longitudinal extension of the rod 25 and of the tubular post i8 may be regulated by rotating the nut The upper end of the rod 25 is provided with an integral pivot block i which is slotted downwardly at 3i from the upper end thereof forming a bifurcated yoke or clevis 32. The bottom of the slot 3i is formed into an upwardly extending, centrally disposed, pyramidal or conical shaped projection 35.
A lever 35, of the rst class, made of a length of bar metal, rests between its ends on the vertex of the projection 35 and is adapted to rock both longitudinally and transversely thereon. A recess 3? is formed inwardly from the upper edge of the lever 36 opposite the point where the lever rests on the projection 35. A headed pin 38 extends through the two legs of the yoke 3;' and also through the recess 37. A cotter pin 33 is employed to hold the pin in position thereby retaining the lever in the slot 3| for longitudinal and transverse rocking movement on the projection 35.
The lever 35 is located on the projection 35 with a longer manually operable end 44 thereof formed with a hand grip portion 4i adjacent the outer end thereof. Said longer end 43 is preferably downwardly offset to permit convenient extension thereof outwardly from the car body i3, as through an open door or window. The shorter end 44 of the lever 36 is bent into the form of a longitudinally located loop 45 forming a vertically extending socket 4B therethrough. A dolly block 48, in the form of a substantially rectangular metal member, is provided with an integral downwardly extending rectangular shank 49 which extends downwardly into the socket 4S with a loose iit therebetween whereby the dolly block is rested upon the upper surface of the lever 3-3 and may rock thereon. The upper outer surface of the loop 45 is formed arcuately at 5G to facilitate this rocking motion of the dolly block 48. The upper surface of the dolly block 48 is preferably formed to a convex arcuate shape 5I whereby it will conform somewhat with the interior curvature of the turret top of an automobile. So mounted on the lever 36, the dolly block is conveniently and easily removed for t ie substitution of dolly blocks of other sizes, weights, and configurations.
Operation In the use of the tool to aid in the straightening and smoothing of dented portions of a turret top or other portion of an automotive body, the tool may be used in the manner illustrated in Fig. 1. The foot l5 is located on the floor l2 of the automobile body l0 with the tubular post I8 tiltably supported thereon. This tiltable relation between the foot i5 and the tubular member I8 allows the foot to rest on the floor of the automobile body regardless of unevenness of the floor and allows the tubular member to be located angularly thereto for the proper location of the dolly block against the dented portion of the turret top. This further facilitates the imparting of desired forces to the top at angles best suited to the effective removal of dents.
The dolly block 48 is located against the dented portion I3 of the turret top Il with the longer portion 46 of the lever 36 extending exi teriorly of the body of the automobile either through a door opening or through a window opening. The nut 21 is adjusted to raise or to -lower the pivot block 3D whereby the proper height and angularity of the lever portion may be obtained for the most advantageous operation.
The operator, by forcing downwardly on the lever portion 4U, moves the dented portion of the turret top outwardly to the desired approximate original position thereof by forces transmitted thereto by the doly block 48. This outward bending loperation may be repeated at a number of locations until the top is bent outwardly to its approximate original shape. The tool may be used to aid in smoothing the dented metal by locating the tool, approximately as shown in Fig. l against the dented portion I3 and by applying downward pressure on the lever portion 4Q, moving the dolly block fcrceably upwardly against the inner surface of the turret top. A single operator, because the tool is operated exteriory of the body of the automobile can, without aid, ding or hammer the outer surface of the dented portion smoothing it to approximately its original form while pressing the dolly block 48 outwardly against the inner surface of the dented portion. In the use of the tool in the smoothing operation, the dolly block 48 is readily held in its most effective position ,f forceably against the inner surface of the turret f the smoothing operation, the dolly block is provided with a relative rocking motion on the loop and automatically tilts to an even contacting position against the inner surface of the dented portion of the turret top. The dolly block is permitted to rock both longitudinally and transversely on the shorter lever portion 44 whereby it will have even contact against the dented portion of the turret top.
The lever 3S, being supported on the pyramidal projection 35 in the pivot block 33, permits pivotal motion of the lever for forceably moving the dolly block 48 against the inner side of the turret top and also permits the lever to rock transversely and longitudinally allowing the dolly block 48 further to adjust its attitude in conformity to the inner surface of the dented portion.
From the foregoing description, it will be observed that a body metal working tool has been devised in which a dented portion of a turret top of a car or other portion thereof can be conveniently urged to approximately its original shape and in which the buck or dolly block thereof may be conveniently held against the inner surface of the dented portion while being hammered during the smoothing operation by a single workman. It will also be seen that a tool has been devised which automatically accommodates itself in attitude to an engaged surface and which is conveniently forced against a dented portion with even contact thereagainst.
Alth-ough I have herein shown and described my invention in what I have conceived to be the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of my invention, which is not to be limited to the details disclosed herein, but is to be accorded the full scope of the claim so as to embrace any and all equivalent devices and structures.
Having described my invention, what I claim as new and desire to secure by Letters Patent is:
A body tool comprising a base plate having a ball upwardly extended therefrom, a substantially vertical tubular post having socket in the lower end thereof mounted on the plate for universal movement by engagement of the ball and socket, a screw-threaded rod telesoopically received in the upper end of the tubular supporting member, a nut threadedly f received on the screw-threaded rod and in abutting relation with the upwardly extended end of the post adjustably regulating the telescopic relation of the post and rod, said r-od being slotted inwardly from the upper end thereof forming a biiurcated yoke and the bottom of the slot being provided with an upwardly extending projection, a lever rockingly rested between lits ends on the projection within the yoke, means for preventing withdrawal of the lever from the yoke, said lever having a vertically located socket formed in one end thereof, and a dolly block supported on the end of the lever formed with the socket land having a shank eX- tending downwardly and loosely into the socket. said lever having an arcuate surface on which the dolly block is rested whereby said dolly block is free to rock relative to the lever in the plane of the lever.
FRANK R. BARTLO.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 288,009 Carney Nov. 6, 1883 305,421 Brown Sept. 23, 1884 1,775,968 Nelson Sept. 16, 1930 1,850,073 Countryman Mar. 22, 1932 2,185,550 Gerdes Jan. 2, 1940 2,274,032 Blair Feb, 24, 1942 2,444,250 Ferguson June 29, 1948
US56284A 1948-10-25 1948-10-25 Sheet metal working tool Expired - Lifetime US2543347A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756621A (en) * 1953-03-17 1956-07-31 Victor R Jones Metalworking tool for repairing automobile bodies
US2797725A (en) * 1954-08-10 1957-07-02 Morris W Whitesell Backup means for working on automobile body tops
US2799190A (en) * 1953-07-27 1957-07-16 Alfred E Awot Apparatus for repairing dents in car bodies
US4089201A (en) * 1976-05-27 1978-05-16 Constantine Raptis Silent dent puller
US5445000A (en) * 1992-10-28 1995-08-29 Brown; Gordon C. Location method and panel pressing apparatus
US20150158068A1 (en) * 2013-12-05 2015-06-11 Poul Chang Metal Industry Co., Ltd. Car fender trim expander
US9457391B2 (en) 2014-05-16 2016-10-04 Lockheed Martin Corporation Apparatus and method for deforming a surface

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US288009A (en) * 1883-11-06 Lifting-jack
US305421A (en) * 1884-09-23 Lifting-jack
US1775968A (en) * 1929-04-25 1930-09-16 Nelson Samuel Fender-straightening tool
US1850073A (en) * 1930-07-12 1932-03-22 Guy A Couetryman Automobile repair tool
US2185550A (en) * 1938-02-25 1940-01-02 August G Gerdes Automobile repair tool
US2274032A (en) * 1939-04-15 1942-02-24 Blair Floyd Earl Repairing tool
US2444250A (en) * 1945-08-17 1948-06-29 Porter Inc H K Appliance for working on automobile body panels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US288009A (en) * 1883-11-06 Lifting-jack
US305421A (en) * 1884-09-23 Lifting-jack
US1775968A (en) * 1929-04-25 1930-09-16 Nelson Samuel Fender-straightening tool
US1850073A (en) * 1930-07-12 1932-03-22 Guy A Couetryman Automobile repair tool
US2185550A (en) * 1938-02-25 1940-01-02 August G Gerdes Automobile repair tool
US2274032A (en) * 1939-04-15 1942-02-24 Blair Floyd Earl Repairing tool
US2444250A (en) * 1945-08-17 1948-06-29 Porter Inc H K Appliance for working on automobile body panels

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756621A (en) * 1953-03-17 1956-07-31 Victor R Jones Metalworking tool for repairing automobile bodies
US2799190A (en) * 1953-07-27 1957-07-16 Alfred E Awot Apparatus for repairing dents in car bodies
US2797725A (en) * 1954-08-10 1957-07-02 Morris W Whitesell Backup means for working on automobile body tops
US4089201A (en) * 1976-05-27 1978-05-16 Constantine Raptis Silent dent puller
US5445000A (en) * 1992-10-28 1995-08-29 Brown; Gordon C. Location method and panel pressing apparatus
US20150158068A1 (en) * 2013-12-05 2015-06-11 Poul Chang Metal Industry Co., Ltd. Car fender trim expander
US9457391B2 (en) 2014-05-16 2016-10-04 Lockheed Martin Corporation Apparatus and method for deforming a surface

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