US2342179A - Jig - Google Patents

Description

Feb. 22,v 1944. G. clEsA ErAL JIG' Filed July 22,r 1940 5 Sheets-Sheet l Feb. 22, 1944.

G. clEsA ETAL" 2,342,179

JIG V I Filed July 22, 1940 5 Sheets-Sheet 5` Patented Feb. 22, 1944 UNITED STATES PATENT `OFFICE JIG Application July 22, 1940, Serial No. 346,778 *A (Cl. 11S-99) Steve Kopas. Jr,

14 Claims.

Railway car framing varies considerably for each car, depending upon the particular type and Y floor plan arrangement of the car. The locations of the framing members for the car structure, their sizes and shape, all depend to a large extent upon the nature of the car under construction.

Heretofore, the car side frames have been partially constructed upon Work holding jigs of various types, all of which have required considerable time and expense to adapt them to the particular side frame to be constructed. The preparation of the jig has been one of the time consuming items which has impeded progress in the car building industry and has hindered attempts to employ large scale productiony methods.

The public isv rapidly being schooled in large scale production methods, and it has come to eX- pect a job to be completed in a very small fraction of the time v*formerly required. When a railroad company places an order for cars, one of its rst requirements is that the order shall be lled by a specific date, and in most instances the time allotted the icar builder to complete the order is very limited. VThe railroads are becoming more and more insistent in their demands for prompter delivery of cars, and the carbuilder necessitating considerable ,time and labor to prepare the various work holding devices for handling the specific job. The jigs have had to be practically torn down4 and vrebuilt to accommodate them for a specific car or cars to be constructed,`and, when the order is completed, the task of .adapting the jigs for the lnext lot of cars has required considerable time and labor.

The present invention deals with ajiggfor supporting the various framing members making up a car side frame whiley they are assembled and welded together.

Standardization is a very impor-tantitem in working out commercial large scale production methods, and, even though the `cars today cannot be. classied into standard models, the jig forming the subject matter o f the present invention is so arranged that it can very readily be adapted for `use in the construction of any car side frame.

The post supporting members on the'jig are easily movable lengthwise to the car side frame sothat,r no rnatterl what .window 'arrangement is employed, the jig .may very quickly be adjusted to accommodate the specic car side frame under i construction.v vThe spacing of the longitudinal oftentimes is hard pressed for sufficient time to framing members willvary in each car designed, and thel jig mayl very quickly be adjusted to .accommodate these members.

- The camber which is built in thecar depends uponthe length and height of the car and the materials used in its construction, so that'a` side must be hurdled by the car builder. Due to the high degree of competition between ear builders and to general business conditions today limiting the budgets of the railroad companies, car builders are required to figure the cost of new cars very closely and to make their margin of profit relatively small. Manufacturing costs constitute a large part of the total/cost of a car, and wher- Eiorts continuously are being made to improve i shop practices in an effort to save both time and money. The handling of the bulky materials and construction parts has always been a considerable problem and one which has involved innumerable time-consuming operations. Since there 'are no standard models for railroad cars, as there are, forl instance,y inV automobiles, each 4 job when it presents itself to the shop department has been treated as an entirely new one bers during the welding operation.

frame jig, in order to be suitable for side frames vof all types and designs oi passenger cars, must be provided with means for adjusting the camber to be placed in the car side frame., YThis is readily accomplished bymeans of a lcamber adjusting member, which is Very easily and quickly adjusted tosuit the requirements of the specific car under construction. This camber member automatically places the proper camber in the car side frame. After this camber adjusting member has oncebeen properly set, no further attention need be given the question of camber, and the car side frame, when it is completely fabricated, is provided with its proper camber.

Very efficient and easily handled work holding clamps are employed to hold the various car side framing members in place on thev jig', and they are so arranged that interference with the welding operation is reduced to a minimum.

Provisions are made to allow for the expansion and contraction which occurs in the various mem- 'The above constitute some of the principal obalong the length of the support and are employed to hold in place the Vertical and longitudinal framing members making up the car side frame while these various members are being welded together. Extending lengthwise at the top of the jig support 25 is a traveling crane, generally indicated at 35, riding on tracks 36 and 31 supported at the top of the jig frame. This traveling crane is arranged to move the post backing members 34 along the jig and to handle the heavier materials applied to the jig.

.Spacer members |31 and |38 (Fig. 1) are adv vjustably 'attached to the upper and lower longithe side post backing members showing-'thevarious supporting members for" holding.- the longif tudinal framing members of the car side and disclosing the clamping members at the top and the bottom of the supporting member;

Fig. 5 is an enlarged perspective view of a tudinal'members 28 and 29 respectively, at each enddthereof to gauge the length of the car side under construction.

SPECIFIC DETAILS J ig support ltapered pin employed to hold the car. side frami-ngmembers on thejig; l 1. Fig. 6 is an .enlarged-perspective View of a U .shaped clamp employedwin holding certain framu ing-membersto the jig;

Fig. .7 .is an enlarged,perspective View of a .olarnp .employedto hold the side post backing membersagainst the jig support;

Fig -8 is 1a, fragmentary horizontal sectional y ...view taken through aportion of the jig showing the application of the` clamp shown in Fig. 7;

Fig. 9 is an enlarged front elevational view of ,the side post and end post backing members being,supported on the jig support;

20 -TheH beams ZSare firmly xedat their lower .ends tothe iloor,.as best shown in Figs. 3 and 10. VThelongitudinal members 28,and 29 are notched adjacent to their endsat 3S (Fig .2) where-they are attached to the` H .-beams.,A Angle members 39 (Fig. 10)I extend longitudinally to the jig directly above and below the channel members-30, and are v.secured to the H beams 26 by means of -bolts 40 on the.. ends ofwhich are threadednuts 4|. The outwardlyextending flanges ofv angle members ,39 are secured to the webs .of `channel members 3!by-means of. bolts 4-2 securely held in place by nuts 42,'. Plates GS .connect the upper and lower channel members. alongV theirrearV edges and longitudinal members ze and 29.

`Fig. 10 is avertical sectionalview through the ,jig taken onthe line ||l|0 of Fig. 9 and indi- .catir1g.in.brokenlines the car. side framing mem- ;.bersas they are about tobejapplied to the jig;

Fig..13 is anenlarged horizontal sectional view taken on the line |3 |3 ofA Fig. 11;

Fig.,14 is an ,enlargedhorizontal sectional Viewv v `taken onthe line Ill- I4 of Fig. 11;

Fig. 15 is an enlarged horizontal. sectional View taken on the line -l 5 |5 of Fig. 11; and Fig. 16. is an enlarged front elevational View of the jig showing thev car side. framing "members in place.

are .welded vor;otherwise. fastened to the4 rear ilangesof .the channelm embers.

. The flongitudinalmembers 3I. arefastened to theouteniianges 4450i the. channel members 30 by means oflboltsll onto which are. threaded .nuts 16. The outerfaces 4'| of the longitudinal members 3| are yerticaLandall lie in .a common verticaL plane.

v Extending. -downirom the. upper andlower verticalgmembersl are .anges 48, and extendingup from, the lower verticalmember 3| is a flange dit Asbest shown 'in Fig. 3, aTshaped vgroolv'e 5i! is .provided in theouter surface 41 of eachlcngitudinal member 3|. y

A specic embodiment of. the present inven- 1 tion` is selected forthe purpose offdisclosure in compliance4 withSection 4888 ofthe Revised Statutes. Obviously, many modifications may be made, without departing from the scope of the invention.

GENERAL ORGANIZATION Referiingto the g-ures', the work holding jig comprisesA a supportingmember, generally indif cated at '35 (Figs. '1 and 2) made up of a plurality Camber adjusting' member Shims 5| (Figs. 1 and 1l) are. inserted between the upper edge of the longitudinal member 3| Aand the horizontal .flange .of thecamber angle 32 toadjust the camber in the `camber. angle 32.

When adjusting thiscamber thestuds 33 are rst loosenedand the shims. areinserted and then the studs are again tightened. These shims vthe angle member may be bowed upwardly from theends towards the center, as shown `in Fig. 1,

the degree of bowing depending upon the amount ofrverticalyH-fbeams'25, tofwhich'are attached These members 28 and 29 Ieach comprises apair of channel beams-30 (Figsw and 1G), to which is secured a relatively'deep longitudinal member 3|.

1'; Along the'topedge of the upper longitudinal member 3|-is a camber adjusting angle 32 held in place by studs 33 .spaced along the length. of the c amber angle 32.

' Post backingmembersor jig members, gener- .ally indicated at 34 irl-Fig. l, are carried by the support 25, and these backing members are spaced vof camber desired in the specific car .sideframe under construction.

The purpose of .placing camber in the car side frame :is to make allowances for the vWeights added to the frame as the car is constructed, so that when the car is completedthe underframe and sideirames will b e substantially horizontal.. Inasmuch as cars are. supported adja- Vjig support.

the frame acting as a beam tends to bow downwardly in the center, and if this camber were l not initially placed in the underframe and side frames, the completed car would bow down wardly in the center.

The camber angle 32 is adjusted with a cambe corresponding to that desired in the car side -frame. The degree of this camber will depend upon the length and weight of the car to be constructed and the characteristics of the materials used in the framing members. When the camber angle has been properly cambered with the shims in place, studs 33 are tightened.

The post backing members 34 are suspended on the jig support 25 by means of rollers 52 (Figs. 1, 10, and 11) riding along the top edge of the camber angle 32. Thus the position of the post backing'member 56.

each post is automatically adjusted vertically by the camber angle. `Each of these rollers 52 com prises al tread 53 and a ange 54 (Fig. 10). A stud 55 is threaded into the post backing meinber 34 and serves as the axis about which'the j roller rotates.

Each post backing member 34, then, is mounted on the jig support'25 in such a manner that it can readily be moved Post backing members There are two types of post backing members 34,` one being the sidepost backing member 55 (Fig. 9),'and the other the corner post backing member 51. At each end of the side frame for the car is a corner post, and between these two members throughout the length of the car side Side post backing members l longitudinally along thel each face of the web 58 adjacent to the top of Vertical slots 15 and 18 are provided in these latter plates 13 and 14, respectively.

Adjacent to the top of the side post backing member 56 is a side plate support 11 having outwardly extending parallel arms 18 and 19 having inwardly extending portions 80 and 8 I, respectively, terminating in flanges 82 extending parallel to the arms 18 and 19. Each of these flanges 82 is provided with a projection 83 forming a guide member fitting into the slot or guideway 16 in the plate 14. Thus, the side plate support 11 is movable up and down in the guideway 16, so that its height relative to the backing member 56 may be adjusted.

Below the side plate support 11 on theside post backing member 56 is awindow header support 85, comprising outwardly projecting parallel arms 85" and `81 bending inwardly at their rear ends, and terminating in flanges 88 paralleling the arms 85 and 81. Each of the flanges 88 is provided with -an inwardly extending projection 89 forming a vguide member tting into the slot or guideway 10in plate 59. Thus,v the Window header support 85 is movable vertically on the backing member 55 in the guideway 10.

Further down the post is a sash rest support 98 operating in the cut out portion 88 of the web 58 and comprising outwardly extending parallel arms 9| and 92 bending inwardly at their rear ends and terminating in anges 93 paralleling the arms 9| and 92. Each of these flanges 93 is provided with a projection or guide member 94 adapted to ride in the slot or guideway 12 of plate 1|, so that the sash rest support 90 is movable vertically on the plate 'H in guideway 12.

Adjacent to the bottom ofthe side post backing member 55 is a side sill support 95 having Referring to Fig. 4, each side post backing f a plurality of vertically spaced slots |08.

(zii

the projecting web portion 52 adjacent to the top of the supporting member is an enlarged edge 55 and similarly'at the outer extremities of the intermediate and'lower web projecting portions 53 and 84 are enlarged edges G5 and 6 1 respectively. The enlarged edge members B5, 65, and f 61 are in vertical alignment so that their outer faces 65', 55', and 614' are substantially'in the same vertical plane. In the cut out portion of the web 58 between the upper and intrmediate extended web portions 52 and 53,5ifespectively, are plates-59 secured one to each fa'ceof the web 58. Each plate extends vertically and has a longitudinal slot 10. In the cut away portion 5| of the web 58 between the intermediate and lower extended web portions 83 and`64 are plates 1|, one fastened to each face of the web 58. Each of plates 1I extend vertically y and is provided with a longitudinal slot 12. A similar plate 13 is fastened to each face of the web l58 adjacent to the bottom of post backingv member 58 and likewise a similar plate 14 is secured to outwardly extending parallel arms 95 and 91 bending inwardly at their rear ends and terminating in flanges 98 paralleling the arms 96 and 91. A projection or guide member 99 extends inwardly on each ange 98 and rides in the slot or guideway 15 of the corresponding plate 13, vso that the side sill support 95 is slidable vertically in the guideway 15.

In each of the guideways 16, 18, 12, and 15 is The side window header sash rest and side sill supports are each slotted in their respective iianges 82, 88, 93, and 98, to receive bolts llll, which pass through one of the slots |05 in the corresponding guideway and are threaded at their ends to receive nuts |02. After one of these support members is adjusted vertically on the side post backing member 55, the corresponding bolt. lill "is inserted in place and the support member Vfixed by a tightening of the nut |92.

The outer freey edge of each of the arms of the side plate window header sash rest and side sill supporting members lies in substantially the same vertical plane as the outer faces 55', and 51' of the enlarged edges 55, 65, and 51, respectively, of the web 58. As best shown in Figs. 10 and ll, a vertical side post |83 forming part 4of the car side frame is placed against the outer faces 55', 65' and 81' ofthe backing member web 58, and then the `side plate |94, window header I 85, sash rest |08, and side sill |81 are I each placed against their corresponding supporting members on the backing member 5B; and, since the outer edges of each of the arms of the supporting members 11, 85, 90, and 95 lie in the vertical plane of the outer faces 56'; 61'

o tot therbackingmember 56. the-car side posts |03 and longitudinalframingmembers |94, |05, |06 :and |01 areplaced against each other in position substantially at right-angles to the arm ||3.

for welding.

On both sides of web 500i the side post backing member-56 adjacent toy the enlarged edges f 65, 66, and 51, respectively, of the web 58 are f gauges 3| held against the corresponding face of web 58 by brackets |32. Each gauge |3| is slots ted at |33, and a screw |31!y projects inwardly from the bracket |32 into the slot |33 of the gauge.

lat |35, so Vthat the gauge can be easily grasped,

and the forward free end of each gauge lies closely against the Vcorresponding side face of the enlarged edge of the web 5B when theA gauge is in its forwardmost position.v The gauge may be v A drawn back away from the enlarged edge of the f web 53 -to assume the position shown in dotted -lines |36 in Fig. 13. x v

. Adjacent to the bottom of the sidevpost-backing member 56 immediately-below the side sill ir-supporting, member 95 is aA slot |98 extending horizontally into the `web 85 of the-backing memjig, ,andithenfthe clampis moved along the pin vtoward the'lug |09 until the clamp assumes fa position where the screw l is in the plane As best shown in Fig. 13, each of the gauges |3| is flanged outwardly at its rear edge pin i9 Vuntil the arm ||4 clears the stop |20, and

ber, and, as best'shown in Figs. 10 and 11, when l the side sill |0101 the carv frame is mounted on 'f the jig,fits horizontal flange extends into the slot :Clamps Again referring to Fig. 4, adjacent to the top ofthe side post backing member 55 is an upwardly extending lug |09 'having a pin H0 extending `horizontally outwardly therefrom. A clamp slotted at H2, is pivotally mounted on this pin The clamp |||is angle shaped, having, when in its raised position shown in Fig. 4, a horizontal arm 3 and a downwardly extending arm I lli A slot ||2 is located in the arm ||4 of the clamp, and the clamp is adapted to rotate from the vertical position shown in Fig. 4 to the horizontal Uposition shown in Fig. l1 with the arm H3 eX- tending downwardly in front of the post backing member 56.

Atthe free end of arm H3 is an adjusting screw H5; threaded through a collar ||B on the end of arm ||3. The screw l l5 has lateral arms Il?, which facilitate the manipulation of the screw, and an enlarged contact member ||8 is fixed to the free end of the screw 5 and is adapted to engage the car side post |03v when the post is applied to the jig and the clamp is in its horizontal position shown in Fig. 11. The nin IE! extends laterally with respect to the then thev clamp is rotated into its vertical position shown in Fig. 4. The larms ||3 and 4 of `clamp are notched -atl |29 and |30,1'espec- `tively.

Adjacent to the bottom of the post backing member 5t is a clamp |23 of angle shape having arms |211 and positioned at right angles to each other. The clamp |23 is pivotally mounted on a pin |25 projecting outwardly-from the post backing member at right angles to the web ,.58 of the backing member. lThe pin IE6-projects beyond the arml 91 of the side sill support 95, and a nut |21 is threaded onto the free end of the pin. The clamp |23, when in its open position, assumes the vertical position shown in Fig. 4; and it is situated adjacent to the outer end of pin |26. A stop |28 (Figs. 11 and 15) projects outwardly from the web 58 of v post backing member 56, and, when the clamp |23 is in its open position,

lthe arm |25 of the clamp clears the outer end of the stop |28. When the clamp is moved to its operative position, it is rst swung about the pin Y |26 until it assumes the horizontal position shown in Fig. 11, and then it is moved inwardly along the pin |25` until the clamp is in proper align- ,ment with respect to the work to be held on the jig, in which position the arm |25 of the clamp is directly under stop |28, as best shown in Fig. 11, and is prevented from rotating back to the l vertical-position by thisstop. The free end of arm` |2501 the lower clamp |23 is notched at hill. The arms |24 and |25 are notched at |4| l and M2 respectively.

Referring to Figs. 3, '7, and 8, each of the side lpost backing members 55 is clamped in place vagainst the longitudinal members 28 and 29 of the support 25 by clamps generally indicated at |153. Each of these clamps comprises a pair of arms |44 and |45 adapted to straddle the backing member 56 along the back vertical side thereof, connected at their rear ends by a block |46.

On the inner faces of the free ends of arms |44 web 58 of the post backing member 5G and is long enough to project beyond the arm T9 of the side plate .support '51. The clamp may be moved outward movement of clamp i longitudinally,l along the pin` H0, and a nut H9, threaded onto the free end of pin I0, limits the Referring to Figs. l1 and 12, a stop |20 is secured to the web of the side postbacking member 55 and is of angle shape having a flange |2| which engages the web 58 of post backing member 56 and an outwardly extending flange |22 which serves as the clamp stop. When the clamp is in its vertical position, it is at the outer end of pin H0, so that it swings free of stop |20. When it is moved to the horizontal position shown in Fig. 11, it is rst swung to this horizontal positionwith the screw H5 loosened away from the car framing members in place on the and M5 are blocks ILV! and |48. An adjusting screw |49 is threaded through the block |46 adjacent to its lower end. The clamp |43 is applied to the side post backing member 56 with y the arms M4 and |45 straddling the rear edge of fthe backing ymember and the blocks |41 and |48 engaging the inner faces of anges 59 on the post backing member. As best shown in Fig. 3, the block |40 engages the rear face of flange 48 (or e9, depending upon the location of the clamp) of the longitudinal member 3l on the 'jig support. As indicated in Fig. 3, each side post backing v member is held in place by two clamps |43, one

engaging the lower flange 48 of the longitudinal ymember 3| and the other engaging the upwardly :extending flange 89 of the lower longitudinal member, When the clamp-isin place, the adjusting screw |49 is tightened to draw the post backingqmember 56 against the post support,

thereby clampingithe backing' member into place'.

U-shaped clamps |55 are used to secure together the -longitudinal and vertical framing members rmaking up the car side frame. Each clamp has :arms and |52, on the inner face of the former of which is a projection |53, and on the latter of which is a slot |55 having sides |55 and |51 which project inwardly into the .slot |55. The free end of arm |5| of the clamp "tapers at |54 to provide clearance.

.A tapered pin |58 (Fig. 5) is used in conjunction with the U-shaped clamp |53 and with the upper and lower clamps and |23 on the side :post backing member 55. This pin comprises flanges |53 and |55 substantially at right angles to each other, connected by a web |5|. The web 15| tapers along its top edge downwardlyfrom the ange |55 onto the free end of flange |59.

End post backing member Traveling crane 'The traveling crane 35 directlyrabove thev jig is adapted to move throughout the entire length of. the jig. Extending upwardly from the H posts 25 (Fig. 1) are members |53 forming the ver tical supports for tracks 35 and 31 between which the crane travels. Referring to Fig. 3, a chan- 'nel bar |52 extends lengthwise to the jig frame 25 between the vertical members |53 adjacent to the upper ends thereof. Track 35 is secured tothe channel member |54. Extending lengthwise to the jig frame 25 adjacent to the upper end of posts 25 is an angle bar |55 upon which the lower track 31 is mounted.

The crane 35 is mounted on a frame, gen

erally indicated at (Figs. 1 and 3), having upper and lower horizontal framing members |51 and |58, respectively, connected by vertical mem bers |59 and |10. Wheels |1| are mounted on the frame |55 along the top of member |51 and the bottom of member |58 of the frame. Extending outwardly from the frame |55 directly be- ,low the upper member |51 is a horizontal track |12 extending transversely to the welding jig.

A supporting frame |13 having wheels |14 rides `along this track |12 in a direction at right angles ito the length of the jig, and the lifting mecha- :nism |15 of the crane 35 is hooked onto the ,frame |13 at |15. A hook |11 extends down bellow the lifting mechanism |14.

Operation of iig requirements of the car side to be constructed..

the rst operation is to adjust the distances be.- tween the stops or spacers |31 and |35 on the upper and lower longitudinal members 28 and 29, respectively. The distances between these members initially is greater than that corresponding to the length of the car side frame ,under construction to make allowance for the shrinkcause of the shrinkage which occurs, the longitudinal framing members are initially longer than the completed car side frame. Next, the camber angle 32 is adjusted with a camber to correspond to that desired in the car side. The end post backing members 51 are properly placed against their corresponding stops |31 and |38.

The side and end post backing members 55 and plied to each post backing member as it is moved into place and, as best shown in Fig. 10,'these clamps |43 securely lock the post backingmem, ber in place against the longitudinal members 3| of the jig support.

Because the post backing members are sus;v

pended from the camber angle 32, their relative heights with respect to each other are determined by the positions of the camber'angle 32 at the locations where the backing members are suspended. Thus, the initial adjustment of the camber in the camber angle determines the relative heights of the post backing members, there. y

byautomatically placing a corresponding camber in the car side frame. v

After the post backing members have been properly located, the car side sill |01 is placed againstl the side sill supporting members 35, as shown in Figs. l0 and 11. l'l'he lower clamps |23 are rotated and moved to their horizontal position shown in Fig. 11 to hold the side sill apl* `proximately in place. l The post backing members 55 and 51 support Y the side posts and end posts, respectively, in a vertical position. As best shown in Figs. 10 and 13, a typical side post |53 is indicated as being Z-bar. In the case of the side post, it is applied to the side post backing member 55 with the web |19 of the post extending along one side of web 5B of the post backing member 5B and the flange extending across the front face of the enlarged portions of the web 58 of the backing member and bending inwardlyv along the opposite l side face of web 58.

When the post is applied to the backing member, the gauges |3| are moved. forwardly in the position shown in solid -linesin Fig. 13, so as to ll in the gaps on each side of the web 58 between the web and the side'posts. These gauges are provided to make allowance for the contraction which. takes place after-the welding operationv has been completed, and, when the post is firstU mounted on the backing member, these gauges are used to properly locate the post, but, before the welding operation has been performed, the gauges are withdrawn to their dotted line posi-A l tion |35 (Fig. 13), so that the side frame. is free to contract during the cooling period. The end posts are applied in the same manner.

Aftereach post has been properly located,

and horizontal flanges, respectively, of .theliside sill V|51, Vthereby securingthe side sillin place. In each of the slots. |4||V at the free'endof arm j age which takes place during the cooling periodj |24 yof each clampA |23, a V.tapered.spike -`|58 .is

after v'the'weldi'ng operation isvcompleted.'l Bethe side sill |51 at that post position is movedinto place and then tapered spikes |58 are drivenv vinto lthe slots liliv andv |42 againstthe vertical driven to hold the post of the carv frame in place at the bottom thereof.

The car side plate IINv (Figs. and 11) is nextplaced against the supporting members TI, and e theupper clamp I I I is rotated downwardly to-the horizontal position shown in Fig. 1l and moved along the pin I Il] into proper alignment, and then the adjusting screw II5 is tightened againstthe post YI'IB adjacent toits upper-end.- Tapered spikes'ISB are driven intofthe slotsI29 and I 30- ofthe clamp III to wedge-the spikes between the clamp and the car sidev plate loll, In thisv manner, the side plate issecurelyheld againsttheV side plate supporting members 17. Thusall-of Y the posts are assembled on the jig.

The window header I 05 and the sash rest Itare next applied to the jig, and U-shaped clamps I5I1` are placed with -their projections ISS againstV the inner faces of members I 'andv I 6-and straddling the car'framing lpost and longitudinal member. A tapered spike I58- is wedged between the clamp IEB and the post yand longitudinal framing members with the web IGI vof thel spike entering the slot |55 in the Clamp I iii).` Inf-this manner, the longitudinalvframing memberslland IIi'are securely-held on the jgagainst'the car framing postsin-proper-position to be Welded.

The window header -and sash rest are made up of v short lengths terminating at'each/ post.

The various members making up the vcarside frameare nowmounted in place on the jigand are vready to be welded.' The operatorY ofthe Welding apparatus whenv welding thewindow header and sash rest MI5-and |06; respectively, to the side posts I'Iyrst tacks the members-together at one of theirjoints withva small weld, and then he moves the gauges ISI -backwardlyto their dotted line positions shown-in Fig.` 13;- He next removes thev clamp- ISB-.holding the-members at the specific location -to be welded.- The welding operation` of that specific joint is then performed, and the Welder-then proceeds to-the next joint.

When the carside -frame is completely yWeldedtogether, it is ready-'to ybe removed from theside framejig and taken-to-someother part of-the shop where -it is to be applied vto the ca-r side sheathing. All'of'the intermediate clamps |59A havel been removed and the lower` anduppery clamps I 23 and'I I I, respectively, arey rotated to` their open positions. The side frame is thenreh moved as a unit from the jig and is'carried away;

We claim:

1. A vertical work' holding jig" for use inthe construction'of a vehicle side frame comprising a vertical' support, av movable side po-st backing member on the support movable longitudinally of the jig, means atthe top of the post backing member for supporting a vehicle side post in position forwelding while the side frame is being fabri cated,`means at the top of the backing member forsupporting an upper longitudinal side'frame member in proper relation to the side post, a'

Welding While the side framev is being fabricated, means at the bottom ofthe backingI member` for supporting a lower longitudinal side framememay ber in proper relation tothe side frame anda clamp pivotedto the bottom ofthe backing mem-fy ber and movable from an. inoperative position away from the vehicle side post .toan operative..

position adjacent .to the side post for holding. the

vehicle sidepostat the bottomagainst .the .back-1ol ing member.

2. A vertioalwork. holding` jig5for usein the construction of a vehicle side frame havingverf...l tical posts and longitudinal; frame members,

saidjig comprising a vertical` support substan-v tially coextensive with the ylength of the.side..., frame including spaced posts` rmly .xed-inJan.,

upright position, and horizontal, members exeU tending longitudinally. of the jigand seouredlto the vertical posts, a camber adjusting member `extending longitudinally of the jig and supported on' one ofthe longitudinalv support members, means for adjusting the ,camber of said. adjust.

ing member, at least threel vertical post backingmembers spaced longitudinally of .the jig, means.

for movably supporting thebacking members .on .I

the vcamber adjusting member, the proper relative vertical displacement. between the supporting. means to produce the desired camber in the/ven, hiole side frame being provided. by .the camber.v v

adjusting member, the backing members being movable longitudinally along the camber member, means for locking the backing. members in place on the cambermember, means for. .holding a Vehicle side post on each backingV member,vv

means movable vertically alongthe backing .member for holding a longitudinal vehicle framing. member, andmeans forlocking .the lastnamed..

means-in place on thebacking member..

3. A vertical Work holdingv jig. for use in the construction of a vehiclesideframe comprising a rmly fixed vertical. support substantially..co. extensive with the vlength of the. side `riramewa camber adjusting member onthe support, means... for adjusting the camberinsaid adjusting memeber, at least three post. backing membersmeans for supporting the backing memberson thesupe. port, means on the backing ymembers cooperating.. with the camber adjusting memberfor regulating 1 the height of the backingmember, means onthe backing memberforholding vehicle side posts,... and means .on the backingvmember4 for holding l,

a longitudinal framngmember. of the vehicle side frame, the camber. in said longitudinal fram-,. ing member correspondingto the camber in the,l

camber adjusting member.

4. A vertical Workholdingjig for .use .in the.,l construction of a vehicle. side frame having side,..-

posts and longitudinal members, said jig. come.l

prising a firmly fixed lvertical .support.substane,.

tially co-extensive withA the. length. of.th`e;.side frame, a camber adjustingA member on the support, means for adjusting the camber in said adjusting member, at least three post backing members, meanslfor supporting theIbaCKingUmembers.-. on the support, means -on the backingmembers.v cooperating with the camber adj ustingemember.Y for regulating the heightof the backing.. mem. ber, means on 'each backingmemberforholdingn a vehicle side post, and means on each backing...

member for holding a longitudinal framingmemr, ber of the vehicle side, said.last named means being movable vertically on .the backingmember.

5.- A vertical work-holding jig oruseinthe.H construction-of a vehicle Aside .frame comprising., a firmly iixedverticaLsupport.' substantially ,core .A

extensive with the length of the side' frame, a camber adjusting member on the supportg'means for adjusting the camber in said adjusting member, at least three'post backing member's movable longitudinally ofthe jig, means for supporting the backing members on the support, means on the backing members cooperating withl the camber adjusting member for regulating the height of the backing members so as'to place the proper camber in the vehicle side, meanson the backing members forholding vehicle side posts, and means on the backing member for holding a longitudinal framing member ofthe vehicle side, said last named means being movable vertically on the backing member.

6. In a'work holding jig of the class'described, a vertical support, a vertical post backing member movably mounted on said support adapted to hold the work, and means on the backing member for holdingthe work against said member including a clamp having, when in its operative position, a horizontal varm extending youtwardly beyond the front facef of the backing member and a'downwardly extending vertical arm at the outer end of the horizontal arm, means at the free end of the horizontalarm ofthe clamp for pivotally mounting the clamp 'on the backing member adjacent to the top thereof, the clamp being movable laterally between a locking position and a free position and when in its free position being adapted to 'be pivoted to substantially a'vertical position to extend above the backing member, a tightening screw at the free end of the clamping member adapted to engage the work when it is in place on the backingmember and the clamp is in locking position, land means on the backingmember for engaging beneath one of said arms for holding the clamp in its operative position only when the lclamp is dispo-sed in its locking position,` thecl'afmp` disengaging said holding means when the clampis moved laterally to its free position.

7. In a work holding jig of the class described, a vertical post backing member adapted to hold the work, and means on the backing member for holding the work against said member including a clamp having, when in its operative position, a horizontal arm extending outwardly beyond the front face of the backing member and a downwardly extending vertical arm at the outer end of the horizontal arm, means at the free end of the horizontalarm of the clamp for pivotally mounting the clamp on the backing member adjacent to the top thereof, the clamp being movable laterally between a locking position and a free position and when in its free position being adapted to be pivoted to substantially a vertical position to extend above the backing member, a tightening screw at the free end of the clamping member adapted to engage the work when it is in place on the backing member and the clamp is in locking position, and xed means on the backing member adapted to be engaged by the clamping member to hold the clamp in its operative position only when the clamp is disposed in its locking position, the clamp disengaging said holding means when the clamp is moved laterally to its free position and clamping means adjacent to the bottom of the backing member for holding the work adjacent to the bottom thereof to the backing member 8. A vertical work holding jig for use in the construction of a vehicle side frame comprising a vertical support substantially coextensive with the length of the side frame, a camber adjusting member disposed longitudinally of and secured to 'the support and extending substantially throughout the full length ofthe support, means for adjusting the camber in said membenzat least three side post backing members spaced length- Wise along the support, means for supporting the backing members on the camber member, the proper relative vertical displacement between the post backing members to produce the-desired camber in the Vehicle side frame beingprovided by the camber adjusting member, the post backing members being movable lengthwise of the yjig along the camber adjusting member, and means on the post backing members for holding longitudinal vehicle side frame members in proper spaced relationship. f

9. A vertical work holding jig for use :in the construction ofva vehicle side frame comprising a vertical support substantially ooextensive Awith the length of the side frame, a camber adjusting member disposed longitudinally of and secured tov the support and extending substantially throughout the full length of the support, means for adjusting the camber in said member, at least three side post backing members spaced lengthwise along the support, means for supporting` the backing members on the camber member; the proper relative Vertical displacement between-the post backing members to produce the desired camber in the vehicle side frame being provided by the camber adjusting member, the post backing members being movable lengthwise of the Yjig along the camber adjusting member, and adjustable supporting means on each backing member for holding vertical and longitudinal framing members for the vehicle side in proper spaced relationship, the supporting meansbeing movable vertically on the side post backing members.v i '10. A Vertical work holding jig for use inA the construction of a vehicle side frame comprising a vertically disposed support at least coextensive with the length of the side frame, a horizontal rail member on the support substantially coextensive with the length of the side frame, means for regulating the camber in the rail, at least three side post backing members supported on the rail member, roller means on each post backing member for supporting the backing member on the rail so that each backing member can be moved readily along the rail, means cooperating with each backing member for locking the backing member in a selected position on the rail, and means on each side post backing member for holding the vertical and longitudinal vehicle side framing members in proper spaced relation, the corresponding last named means on each post backing member being adapted to be spaced a uniform distance from the camber adjusting member.

11. A vertical work holding jig for use in the construction of a vehicleside frame having vertical and horizontal members, said jig comprising a vertical support at least coextensive with the length of the side frame, a camber adjusting member on the support extending lengthwise of the jig and being substantially coextensive with the length of the side frame, means for regulating the camber in the camber adjusting member, at least three .vertical side post backing members spaced lengthwise along the support, a roller for supporting each backing member on the camber adjusting member, the properrelative vertical displacement between the post backing members to maintain the desired camber in the vehicle side frame being provided by the camber adjusting member,y eachy side-post backing ymember Abeing movable longitudinally'along'the camber adjusting member, .and lmeans von :each post backing member for holding longitudinal vehicle :side frame 'members lin proper spaced relationship, the correspondinglast named means on each post backing member being adapted .to be lspaced a uniform distance from the camber adjusting member.

:12. A :vertical Work `holding .jig for usein :the construction of la, vehicle side "frame comprising a vertical support Aat least coextensive with the length and height of the side vframe, a camber adjustingmember extending lengthwise of .the jig at a heightapproximately adjacent .to the :top of the side frame and being substantially coextensive with the length of the side frame, meansfor varying the camber :in said .camber Vadjusting member, ,at least three side post backingmembers spaced lengthwise along the support and supported onithecamber adjusting member, aroller adjacent to the top of each backing member for supporting themember on the camber adjusting member, the proper relative .Vertical displacement between the post backing members to produce .the desired camber in the vehicle side frame being provided by the camber adjusting .membeigieach side post backing member being movable ,longitudinally along the camber adjusting member, means for locking the .backing members inplace, and means on theside post backing membersffor holding longitudinal vehicle sideframe members in proper spaced lrelationship, the corresponding last named means .on each post backing member being adapted vto be spaced a uniform distance from the camberv adjusting member.

13. A Vertical work holding :jig for use in .the construction v.of a -vehicle-.side frame having .vertical and longitudinal members, said jigcomprising a vertical support .substantially oo extensive with the length-.of vthe side frame, a camber adjustine member substantially coextensive with the length :of lthe side 'frame -and extending lengthwise .of the lig, `(means for regulating the camber ,in the ycamberadjusting member, atleast three vertical .side post .backing members spaced lengthwise :along thesupport, means-on-.the'baoking membersfor -holdingavehicle sidejpost, .separate meansnon the fbackingmembers for holding a longitudinal framing member of `the vehicle side frame, :the second means beinglmovablefviertically fon l.the :backing member, vand means for supporting the vbacking 1member A,on the .camber adjusting member in propervertical spaced relationship.

14. A vertical work holdingjig for use ,-in `the construction-of a vehiclezfside:framecomprising a vertical support .atleast .coextensive iwith `the length of the side tframe, a Acamber :adjusting member on the vsupport,substantially coextensive with :the ,length of the :side frame, ,means for regulating the lcamber in :the camber adjusting member, .at least `three .post backing members spaced longitudinally of the support .for holding ai plurality iof vertical -side posts of the ,vehicle side frame, means for mounting at least'one kof the .last named members onthe camber member, the proper relative vertical displacement between the post backing members to maintain -the .desired camber in the vehicleside Aframe being :provided Abyv the vcamber adjusting member, and means oneach post backing member vfor holding a longitudinalframing member of the vehicle side frame, the .corresponding longitudinal .member holding means `on each post backing member being .adapted vto be spaced a :uniform distance from the ycamber adjustingmember.

GIOVANNI CIESA.

ARNOLD O. HOENKE. STEVE `KOPAS, JR. `WILLIAM G. SHAPKAUSKI.

Images