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H. c. CAMPBELL ZAEZEW FOLDING HORSE ‘ Filed Dec. 15, 1945 2 Sheets-Sheet l Um 17, 73946, v H. c. CAMPBELL FOLDING HORSE 2,4323% - Filed Dec. 15, 1945 2 Sheets-Sheet 2 ( Invent'or Harv C"- (‘ampbel l _. Patented Dec. 17, 1946 2,412,715 UNITED STATES PATENT OFFl 2,412,716 FOLDING HORSE Harry C. Campbell, Toledo, Ohio Application December 15, 1945, Serial No. 635,168 2 Claims. I (01. 304-5) CE, ' 1 My invention relates to folding horses, or 2 . trestles, of the type disclosed in my U. S. Letters als, my improved horse, in the preferred em Patent No. 2,312,956, dated March 2, 1943, and an improvement. My instant invention is designed with the pri bodiment illustrated, comprises, as usual, an elon gated back member I and a pair of opposed legs 2 at each end of said member'diverging, in each over which the instant invention is designed as pair, toward the lower ends thereof. The back member I and the legs 2 are tubular and prefer ably of rectangular shape in cross section‘; A pair horse, or trestle, for use in the building trades of opposed. beveled notches 3 are provided in and comprising parts all of which may be in expensively stamped out of metal by a punch l0 the sides of the back member I adjacent to op press or the like. posite ends of said member and in which the upper ends of the pairs of legs 2 ‘are adapted to Another object is to provide in such horses im seat when the horse is unfolded, and as shown, proved means for maintaining the legs of the for instance, in Figure 3. The back member I horse unfolded and rigid, together with means adapting such horses for greater utility than 15 and the'legs 2 may be formed of any light, strong metal suitable for stamping and‘bending. mary object in view of providing an all-metal present-day horses, or trestles. Flat feet 4, preferably rectangular, are provided for the lower ends of the legs 2 with shanks 5 ?tting in said ends. The feet 47 are also prefer Still another object is to simplify the con nection between the legs and the back member and to generally strengthen the composite struc ture, particularly when unfolded. 20 ably formed of metal. ‘ I prehended by my invention, together with the A compound hinge‘connection is provided be tween each pair of legs 2 and the back member precise nature of my improvements and the I comprising the following: A‘transverserow of Other and subordinate objects, also com hinge barrels 6 is formed on the bottom of said manifold advantages thereof will be readily understood when the succeeding description and 25 member I adjacent to each end of the same, with said barrels laterally spaced in the row. The claims are read with reference to the drawings hinge barrels 6 are preferably formed by stamp accompanying and forming part of this speci?ca tion. ‘ In said drawings: Figure 1 is a view in side elevation of my im proved horse, or trestle, unfolded, ' Figure 2 is a view of the same in end elevation, Figure 3 is a fragmentary view in perspective, drawn to an enlarged scale, ing tongues out of the bottom ofsaid member I, as best shown in Figure 6, and rolling'said tongues into barrel form. The rows of hinge barrels 6 are aligned with‘the inner, edges of the notches 3. A similar row of hinge barrelsl‘lmis , similarly provided on the rearside of each, leg 2 adjacent to the upper ends of ‘the legs.’ A rec tangular hinge plate 8 with laterally spaced hinge Figure 4 is a fragmentary view in side eleva tion, drawn to an enlarged scale, and illustrat~ 35 barrels 9, I0, I I on. three edges’ thereof is provided for each pair of legs ,2, with the hinge barrels" 9 ing in dotted lines the manner in which the legs on one edge of plate 8 alternating with and con of one pair are folded, necting to the row of hinge barrels 6 by a ,pintle Figure 5 is a view in vertical transverse'sec I 2, and the hinge barrels I8, II on the other edges tion taken on the line 5-5, of Figure 4,‘ 40 of said plate 8 similarly connected, by pintles I3, Figure 6 is a fragmentary view in longitudi i4 to the hinge barrels ‘I. of the legs '2», respec nal section taken on the line 6—6 of Figure 5 and illustrating one of the legs partly folded, tively, _. " , ‘. ‘ Aswill now be seen, by virtue of the described Figure 7 is a view in bottom plan of one of the compound hinge connection, the legs 2 of each hinge braces, 45 pair may be swung toward each other, from un Figure 8 is a fragmentary view in longitudinal folded position, on the hinge plates 8 from diverg section of the shelf drawn to a further enlarged ing relation in each pair into substantially par scale, allel relation, and then swung, together with said Figure 9 is a fragmentary view in rear eleva plates 8, in pairs, alongside the back member I tion of one of the legs, 50 substantially parallel with said back. Figure 10 is a fragmentary view in bottom plan A hinge brace I5 connects the legs 2 of each’ of the back member, and pair of legs intermediate the ends of said legs, Figure 11 is a view in bottom plan of one of the hinge plates. and functions to maintain the legs of each pair Reference being had to the drawings by numer 55 in divergent relation. Each hinge brace I5 com prises a pair of links I6, I1 of inverted channel 2,412,716 3 form with inner ends pivotally connected together, as at I8, and the inner end of one link 16 ar ranged to overlap the other link 11 to form an ily understood. By lifting the hooks 28 out of the keepers 3|, the shelf 26 may be detached from the hinge braces l5, and by swinging the brace bars 2| upwardly, the hook ends 24 may be disengaged from the slots 25. The hinge by the links are prevented from breaking down in braces may .then be swung upwardly in between wardly out of aligned relation. The outer ends the legs 2 of the pairs and said legs swung on the of the links I6, 11 are pivoted to the rear sides described compound hinge connection into par ‘of the legs 2, as at IS, in brackets 20 and so that allel relation in each pair, and then swungin ‘said links l6, l1, may be swung upwardly in the 10 "pairs on said'compoun'dthinge‘connection parallel plane o'fithe'pair of;legs 2 connected :by the de to the back member I with the brace ro'ds 2| lying scribed'hingebrace. between the hinge braces l5 and the plates 8 of Pairs of brace rods 2| are provided for coopera ‘the pairs of legs. To unfold the horse, the oper tion with the hinge braces Hi to maintain the ations described in connection with folding are upwardly breaking joint between said links where pairs of legs 2 fully unfolded and said pairsof as will be clear. legs 2 in planes at substantially a right angle to 15 reversed, The foregoing will, it is believed, suffice to im the back member I. The pairs of brace rods2l part a clear understanding of my invention with are pivoted, as at 22, to opposite ends of an at out further explanation. taching bracket 23 suitably secured to the bottom Manifestly, the invention, as described, is sus» of the back member I centrally of said/member. ceptible of modi?cation without departing from 20 Hooked outer ends 24 are provided on the brace the inventive concept, and right is herein-reserved . rods *2 I for insertion in slots 25 in the links l6, tosuch modi?cations-asfall within the scope of l1 ofthe‘hinge braces l5. As best shoWninFig the appended claims. ~.ure'3,"th_eislots 24,.arespaced apart,—and thepivots What I" claim is: -'2»_2.~_connect the inner ends 10f :the pairs of brace 1. A trestle of the class described comprising a bar-like back member, pairs of legs at opposite .diverge, :jrods r2lttogether1so~that relatively, tostabilize said :rods in each pair the pairs of legs ends of said member, compound hinge connec . 2.:against lateral» twisting. tions between said member and each pair of legs horse structure to A-shelf 26.is ‘provided in the . adapting the legs in each pair to be swung toward . extend-endwise between the pairs of legs 2. Pref ‘each other and eachpair of legs to be swung to :erably' the shelf 26 is formed-‘of corrugated metal, ~ ward said member, pairs of hinge'bracesbetween ‘for ~_strengthening .purposes, with the corruga the legs of 'each pair for preventing swinging of ,-tions~extending,longitudinally of the shelf, and the legs toward each‘ other and comprising break said shelf is formed with hook-shaped upstand~ joint connections whereby'said braces are opera ling‘ end-?anges 21 for reinforcing the ends of the 1 tive to swing said legs toward each other, means shelf lengthwise. Apairof S-shaped hooks 28 'iareprovidedeat-:eachendof the shelf 26 upon opposite sides 'of .the longitudinal center of the ..»shelf,;said_hooks having innerends 29 riveted, as extending betweensaidmember and said braces for locking-said bracesagainst break joint oper ation, and means interposed between the braces of each pair of legs'for- preventing swinging of at 30, to the ?anges 21 inside said ?anges. The the legs towardsaid ‘member, the ?rst-mentioned .-,outer'-ends ,of ‘the ‘hooks 28, are ?tted downwardly 4.0 . means comprising rods pivoted on said member 3 I, one of which is provided - instaple-likekeepers and attached to said braces for detachment on theinner sides of-eachrlink HS, l'l. therefrom byrpivotal movement of the rods. .->It .is to be particularly noted that the brace _2. A trestle of the class described comprising :bars 2 l_ , v and the shelf 26, since the pairs of brace a'bar-like back member, pairs .of legs at oppo 45 bars 2|“incline ‘downwardly from the back mem site-ends of said member, compound hinge con .ber_l to-thehingerbraces l5, and the shelf 26 is . nections between said member and each pair of function to main > interposed between said braces, legs adapting the legs in each pair to be swung .tainthepairs of legs 2 ,infully unfolded position toward each other and each ‘pair of legs to be and also ‘function to prevent the hingebraces swung towardsaid member, pairs of hinge braces vfrom breaking upWa-r'dlmthereby maintaining the between the legs ‘of each pair for preventing :legs of-reachpair ‘in-properly divergent relation. .Thus, ,a dual safety provision results by virtue ,ofruseof said 'barsll and the shelf 26 so that ,accidentalcollapse of the horse ‘cannot occur. .If the shelf ,26_>is detached, when it isinot ,de sired to .used the. same, the brace bars 2! alone _ swinging of the legs .toward each other and com . prising break joint connections whereby said braces are operative to .‘swing said legs toward , each other, means extending between said mem _ ber and said braces forlocking said braces against in vi break joint operation, and means interposed be tween the braces of each pair of legs for prevent :willbe clear. If the bracebars 2! are detached ing swinging of the legs toward said member, the from ‘the links .l6, H, ,as through accident, the second-mentioned means comprising a shelf de shelf .26 will suffice to prevent the horse from 60 ‘tachably attached tosaid braces. willgsui?ce to preventcollapse of the horse, as collapsing. The manner in which the described horse is .adapted ‘to be folded andunfolded will beread HARRY c. CAMPBELL.