2,2'@5,6@9 Referring now to Mg. 12, the shaft 32 is suitably journaled, preferably at four points, in the base 20 while the shaft 33 is likewise journaled in the head 22. Fig. 6 shbws the same arrangement of forming rolls, and meshing gears, as that 5 of Fig. 12, but with the shafts, base and:head removed. Referring to Figs. 4 to, 10 inclusive, the rolls for forming the cleat will now be described. The rolls 70, 71 of Fig. 5 bend the flat sheet A of lo Fig. 4 to the form A5 6f Mg. 5; the rolls 72@, 73 of Pigs. 6 and 12 bend the strip to the form. A6 Of Fig. 4, the rolls 74, 75 of Fig. 7 bend the strip 8. The rolls 76, 77 of Fig'. 9 elbse the st-rilp@to the 15 form A9 of Fig. 9; and the rolls 78, 79 - complete the operation by closing the strip to the form AiO in which condition@ the drivi'n'g str-ip, 'is - @re,g,dy for use. The rolls 90, 91 form the edge B5,@6f Figs. 4 and 5; the rolls 92, 93 form the e I dge lB6; 00 ihe r6iis 94, 95 form the edge,B7; an idler roller 96 '(Fik@ -8)@ bends the edge @in%vardl@ to the. po@itibri@''Bs-, the r6lis @97, 93 of Fig. 9-bend the edge up to the position.B9 @and the@rollers 99, 100 c6fnplete @the Pittsb'urgh @166k@@as @shown at B'O )@5 ,Iii Fig. 11 is'shc)wl-lithe use@6f both:the @eleat A'O and of t' ie Pitt@burgh @ lock @ B10. : Tlius the cie@tt AIO is used to -lock @two abutting @sheets IO 1 and .102, bo'th of which hove their edges bent 20 back@as'shown at 103 '@nd 104, these@bent back 6dges@being held fir I inly v,7ithirl @t'@ie cleat which is aplz)lied by driving it @ endwise -over @these beiit b6,ck @edges thereby firmly securing the sheets :1,.d I @ And @ I 0 2 togother @in substantially the sa-me .5 plane. A'sheet.C,,-imilartothesheetBds@passedt,,@vice tllr6u'g,h the rolls -90 @tol l@00,inclusive @with the resiiit@ that --Pittsburgh -locks of @the ty-t)e:Blo are fdtm. ed ofi @eac'h 6f:-its edges@ -T.1iis is done by passing 6ne edg(@ of@the@slieet throilgh thes6@-rolls, th6n turn-ing thEi @@heet around end passing the othiar ed--e,through the'same rolls@ so.'as t6 form .ihe se@nie ldbk o'n both @edges. The -sheet .102 ? h'a8 its bd e ttirne@d iip @ at r-ight EL,..igles as shown , 9 (Mg. 1-1) so -as @tb fit under'the overhangIng @ottion 6f the @ Pittsburgh -lock. T. he: 6uter p6t@ti6n @,i o 6 is@ then,bent up from @ the dotted line pbsitidn 'to @the @full; lin6 position so as -to firmly and 135 which connect witlh shafts 136 and 137 by means of couplings 138, 139. The outer ends of these shafts are journaled in suitable bearings in an end member 140 which is carried by a frame 141 to which it is secured by Suitable bolts 142, 143, the inner end of the fra@-ne being secured to the base 20 as by means of bolts 144. The outer end bf the frame 141 ir@ay be supported as by means of a leg 145 secured thereto by means of bolts 140. Slitter rolls;150, 151 are adjustably secured on the shafts 134, 135 at'any desired point so as t6 provide a sheet B (Fig. 16) of a @efticient -rneans is provided for forming any desired edge on one side of a siieet and simultaneously slitting, the sheet to a desired width. 'rhis @ gr6atly speeds -@p the Whole forming operation, -reduces the number of haidlinps of the 'sh66t, and @also reduces the, amount of mac' ' ninery @"nia@cessary t6 -pe.rform @tliese various operations.' :,A third@ set of,@r6lis way @beadded @as shown in Fig. 12. Thus the f6rriir@g roll.ghafts, as 32 iind 33, (Fig.'@12), may bel@'extend6d to receive @@third set of @forinin.- @r6lls as 1'60, @f 6'1 @of a'series Lto form say a flange and lock 6f still an6ther form @frol-n that previougiy. 'd(@sci.-Ibed The ',forms of rolls illu@trated,,a're exeMDlifitatijns @only. Any suita'@le edge forming rolls,niay be,used. It will be readily observed upon @i nspection of Fig. 3 that the licad.@frame @22 -is suliported on the base @ fra me @ 2 0 @tiig;t --it may readil I @ @y-ield vertically -iii opdosi,'ion to -bhe springs 24 while the adjusting screws 26 effect a Predeternined rpiniralim 8pacing between @the frames as well as -t'he fotmiri-a i@olls @ca@.ried bly '@the 8hafts. Furtherrn6re, @ilch predeter--Mined iiii'ni'mum spacing may readily be -Varied iipon loosening the nuts: 27 aiid turning the screws 26 in one direction or I @the other, the 'spril@gs 2@4 -at all @times maintainin 9 the, froe ends @of',tlye f.-screws 4n en'gaier.,ient @wit@h the.,,bAse frarne. A further important - fe8@tur , e of this @inve ioil nt -is the sp ri ecific @ Ouriting'bf :the various @ha-fts whereineacl'i-of@@'sixch sha;ft8 is supp'ortdd in four spaced bearings as is more (@learl@ @illustrated in Fig. ;12. @ Stiah cOristru6tiori @pr6vides for the linounting@'of@the ',f6rming@i@ol,,Is'betweeii ddi a c e n t : @ I -opsired width. to the fbrm A7, which remains the same in Fig. , Thus it vrill be seen that a very simple and lo'ck' th6 sheet '@IZ2@to the sheet C. 5( @l@eatings, the d@iving.@gegrs' bet@veen the'inn6rPefi@rr-ing now to Figs. -1, 2;and 14, the strip @rhost@ bea-rings,and @if @,d6sired, other -foriiiing r6lls A' is @ f6d irito !the m'achine by hand between the 97ftid6s l@ lo I I I 1. As@ it is pushod fokward, it@@passes under'the@ 'tucker rdlls 1,12, 113 w-hich are journaled -upoii suitable@ stub axies bn a fra,rne 114 5,5 @rflich is seclired to the base by,means lof,bolts II 5. These tucker rolls are set at a slight angle @toward the guide III ;and have -their edges kjiurled so that@as@the sheet is fed forward, it will @b6 @held against the,guide @l II @ uritil the strip @is@ c)o caught by'the @ first set of formiiig @rolls. Aft6r that, the roll@.-oreserve'this alignment. Similarly @'the @heet B passes @ uhder siniilar tucker rolls I'l 6, 117 which urge the sheet against I a longi'tudinal guide 1:1 8 Which also serves to hold, this 65 ghe6t ulitil is cut by the first forming rolls. Th'e'irnpression made @ upbn th6 @sheet serves to Id@iido@@that sheet frotn that point 'on thr-ough the succeeding rolls ' until it conies out tinder @a guide l@i 9 (Fig. 15). 70 I'h -Flgs. i6@ and @17 is. shown'an attachmeiit'for form g a Pilttsburgh lock on one edp,,e@6f-a sheet @B.@arid for simul-tai-ieously @slitting'that @sh66t so @a@s'to,8E@ver @a @he-e't I-i)'@tb-erefrom@ In order to do th@is, the shafts 94':arid hgv.-e e%ten@ions 134 1[5 f @a cent externally 6f the . ram6s dja certain o@ f the beari,ngs. Tb-is - p@6vides-a:well@-balanced constructl@on as,well:as prov.i@ding sufficient'resisiai-lee to bending or I deformati6n@@of -the sh@ft -as may -be becasioned in prior 6oifsti@-Li-6tioT-i h@ving sub!@tantialr(fi@tances-,baweeri @a:dje@@ent @bearings. I@@6laim1. In a machine of@ th6celass] desdiibed,@alsen-es of:parallel shafts arranged@in'l@iorizontally sp'aced pairs,-each pqir of@shaftsiVeiii@@.v ertica@lly'disposed and carrying a plurality of'pairs@,gf@ , t r, ' 0 ming, rblis spaced axially of '@.he sh2@fts@-,-xn'eshing'@-ears-keyed on the shafts alld located @between s@ld rolls, a frame @includirig @head land,ba;se portion s, corice'sporiding,8haft@@df,gaid-@pa-irstliereofbein- ' iournaled-ih-the"bqse portion@ tfie O'ther corresp6ndin@ -shafts of 's4id beiiig @j'ournaled i4 -the head portion, the jou@@nals io,r said shafts comPrisiilg ' a plurality of lioariiigs @ spa6ed axi@lly thereof with certain of said bearings dis" posed be-t-ween::said meshing @goar-s a'nd said rdlis and OthOrs ther&of df@posed-adjac6iit 6@posed I ends of s@Lid.@@r-olls, @ir,-d !:Oth@r ge@rs @suppbrt6d @on itud @h-afts@-in "the basd 'portionin-'hol-izontal @Alignment

!2,275,629 3. with said first corresponding shafts and meshing forming rolls of a sheet metal rolling machine with the gears thereon. comprisi ng a pair of spaced parallel sheet edge 2. In a machine as defined in claim 1 wherein guiding members, a pair of tucking rolls disposed certain of said shafts extend beyond correspondlaterally of each said member with their axes ining sides of said frames, and additional work jclined thereto for engaging and directing the forming rolls supoprted by said shafts adjacent edges of sheet material into contact with said certaiii of said bearings. member s, and means for yieldably urging said 3. In a machine of the class described, a base tucking rolls into engagement with said sheets frame, a head frame yieldably supported on said of material. base frame, a plurality of pairs of shafts rotatably i 0 6. In a machine of the class described, a series journaled in said frames, a plurality of pairs of of pl,.raliel shafts arranged in horizontally spaced cooperating work forming rolls secured to each pair of said shafts, one pair of said shafts extending beyond corresponding walls of said frames, a frame detachably secured to said first frame, a pa-ir of shafts having correspbnding ends thereof rotatably journaled in said last frame and the other ends thereof detachably connected with the projecting ends of said first pair of shafts for rotation therewith and cooperating slitting rolls secured to said last named shafts. 4. Means for guiding sheet material to the forming rolls of a sheet metal rolling machine comprising a straight vertically dispbsed sheet edge engaging member for guiding said edge to said roll-s, and a tucking roll laterally spaced from said sheet edge engaging member and with its axis inclined thereto, and means for yieldably urging the tucker roll into engagement with said sheet of material. 5. Means for guiding sheets of material to the pairs, each pair of shafts being vertically spaced and carrying a plurality of pairs of forming rolls spaced axially of the shafts, meshing gears keyed on the shafts and located between the rolls, a frame having separate head and base portions, the lower shafts of said pairs of shafts being journaled in the base portion, the upper shafts of said pairs beinp. journaled in the head portion, the journal for each said shafts comprising a plurality of pairs of bearings in the frame portion which support it, such bearings being spaced axially of the shaft with the bearings of one pair disr;osed between the gear on the shaft and the rolls of one of the pairs of rolls on said shaft, alid other gears supoprted on stud shafts in said base portion between said lower shafts and meshing with the gears thereon between said plurality of pairs of bearings. 30 JAMES J. INGELS.

Patented Mar. 10, 1942 2@275,629 UNIT D STATES PATENT OFFICE 2,275,629 MULTIPLEI P.OLL]ING MACIUNIE James J. Ingels, Chicago, 111. Application June 19, 1939, Serial No. 279,948 6 Claims. (cl. 153 2) A-n object of tl-lis invention is to provide an as a Pittsburgh lock, at the right hand side of improved form of sheet rolling machine adapted toroll simultaneously, or at different times, two or more strips of sheet metal. Anther object is the provision of an improved 0 form of drive for such a multiple roll'mg machine. Still another object is to provide a firm yet Yielding frame for the forming rolls so that sheet metal can be rolled thereby from thirty gage 10 to eighteen gage@ Ano't,her bbiect is the provision of means fbr automatically feeding sheets along predetermined paths so that they enter the forniing rolls in aliniform manner. 15 These and other objects as will hereinafter appear are accomplished by this invention which is fully described in the following specification and shown in the accompanying drawings, in which- 20 11-igures I and 2 are Dersr)ective views of one embodiment 6f the multiple rolling machine; I-ig. 3 is an ewarged vertical longitudinal view on the line 3--3 of Flg. I 1- Fig@ 4 is a perspective view showing the sev- 25 eral stages 'm rolling two sheets simultaneously with the machine; gs. 5 to 10 inclusive are vertical sections through the several sheets of forming rolls and through the gears for driving the same; these 30 figures which show also the progress of the strips of sheet metal tlirough the machine and are taken on the lines 5-5 to 10-10 inclusive of Fig. 3, the shafts, however, being omitted; Fig. 11 is a fragmentary view showing the use 05 of the driving cleat and of the Pittsburgh lock which are formed by t4e rolls as here illustrated; Figs. 12 and 13 are vertical sections on the lines 12-12 and 13-13 of Mg. 31- F-ig. 14 is an enlarged top plan view showing 40 the guides and tucking rolls for guiding the sheet metal into the machine:,- Fig. 15 is an enlarged fragmentary section on the lille 15-15 of Mg. 2; Fig. 16 is an enlarged fragmentary vertical see- 45 tion on the line i 6-16 of FIg. 1 showing a slitter attachment which is added to the machine as sho in Fig. 1, this section being in line with section 7-7 of Fig. 3; and @Mg. 17 is a partial section on the line 17-17 r)O of Fig. 16. The embodiment illustrated is designed particularly for simultaneously rolling a drive cleat AIO as shovm in section at the left of Mgi 15 and@@a lock BIO, cornmonly known to the trade 55 this figure. The machine consists essentially of 9, bed, frame or base 20 supported upon suitable legs 21 and having secured thereover a floating frame or head 22. The head and base are provided with registering openings, preferably four in number, adapted to receive guide or leader pins 23 which have heads upon one end, while the opposite end is screw-threaded to receive locking nuts or the like 25 under which are placed compressi6n springs 24. These leader pins are accurately ground to fit the registering openings in the base and head so that the movement of the head with respect to the base, as will later be described, is substantially a parallel one. Substantially in line with the leader pins are adjusting screws 26 which are adapted to bear upon the upper surface of the, base so as normally to rnaintain the head a fixed distance from the base in opposition to the movement produced by the compression of the springs 24. Locking nuts 27 are provided fbr these adjusting screws. The forming rolls for forming the sheet metal and the shafts upon which they are mounted are carried by the base and head and these will now be described. The several pairs of shafts as shown on the lines 5-51 6-6, 7-7, 9-9 and I D- IO of Fig. 3 are substantial duplicates so that a description of one pair as that shown in Mg. 12 will serve for the other pairs of shafts. For clearance, h6wever, these several shafts will be given separate numbers. Shafts 30, 31 appear on section 5-5" shafts 32, 33 are on sections 6-6 and. 12-12; shafts 34, 35 are on section 7-7; shafts 36, 37 are on section 9-9; and shafts 38, 39 are on section iC-10. Shafts 30- ' 31 are driven in opposite directions and at equal speeds by means of similar meshing gears 40, 41 keyed thereon" shafts 32, 33 are similarly driven by meshing gears 42, 43; shafts 34, 35 by gears 44, 45; shafts 36, 37 by gears 46, 47; and shafts 38, 39 by gears 48, 49. Between the gears@ 40 and 42 is placed an idler gear 50 which rotates upon a suitable stud 5 I; similarly an idler .52 is placed between the gears 42 and 44; an idler gear 53 is likewise placed between the gears 44 and 46,- and anbther idler 54 between the gears 46 and 48@ This train of gears is driven in any suitable manner as by means of a motor 60 (Mg. 1) driven through a suitable gear reduction to a shaft 61 upon which is keyed a gear 62 which meshes with gears 63 and 64 which in turn mesh@ respectively with gears 42 and 46.