Патент USA US2283899код для вставки
May 26, 1942. c. M. BAKER 2,283,899 PIPE CLAMP Filed May 24, 1940 2_Sheets-Sheet l 25 29 23 by 67a? ;; .?Q???? ? i- . _ M ' _ ייS/a May 26, 1942; Q MBAKER ? ? 2,283,899 PIPE CLAMP ' Filed May 24, 1940 2 Sheets-Sheet 2 6f! 4f.5 115' Patented May 26, 1942 2,283,899 uNirEo STATES. PATENT orrlcr. PIPE CLAMP Claude M. Baker, Winnetka, 111., assignor of one-. half to. Jay V. Wescott and one-half to Florence W. Wescott, both of Chicago, Ill. Application May 24, 1940, Serial No. 337,024 6 Claims. (01. 248-56). My invention relates particularly to a clamp for holding a pipe, conduit, rod or the like, selec tively disposed within an opening through a sup porting means therefor. The primary object of the present invention is the provision of an improved resilient pipe hold? ing clamp which may be ?exed for placement in supporting relationship between a pipe and the side wall of an opening through which the pipe passes, and which is operable to remain thus assembled because of reactive forces thereof against said pipe and side wall, without the aid of bolts, rivets, pins or other auxiliary fastening means. ' clamp poised for insertion in seated relation be tween the pipe and a diametrically opposite sec tion of said side wall; ? ' ' I Fig. 6- is a view similar to Fig. 5 showing both clamps assembled in the clamping seated rela tion between the pipe and supporting member opening; Fig. '7 is a transverse sectional view taken on the line l'?'! of Fig. 6; and ? Fig. 8 is a transverse sectional view taken on the line 8-8 of Fig. 6. ' My invention has particular utility as an ex pediently applied clamping device for resiliently yet ?rmly holding pipes in place upon the under A further object of the present invention is the 15 carriage of railway cars. ' Prior clamping devices provision of a novel unitary strap-like clamp de for securing such pipes to their undercarriage vice of the above? character which has a resili ently ?exible bow member insertable between a pipe and the side wall of an opening in which the pipe is disposed and seats means upon the ends of said bow member for engaging and im holding means, such as apertured webs have con sisted of a plurality of parts drawn into clamping relation with the pipes by bolt and nut means, and attached to said holding means by addi tional bolt and nut? means, rivets, or the?like. parting reactive holding force against the pipe. While the present invention is admirably appli A still further?object of this invention is the cable to the environment of the aforesaid clamps provision of a novel shock-absorbing? clamping which it is adapted to supplant,'it will be under and supporting structure for a pipe and compris 25 stood that the invention is equally applicable to ing a plurality of clamp members which are eco clamping means for any conduit, rod, or elon nomically produced and easily installed without gated member passing through an. opening the use of special tools?. With these objects in view my invention con within a supporting means therefor, wherefore it is intended that the term ?pipe? shall have this sists in certain features of novelty in the con- ' generic connotation where used throughout this speci?cation and in the appended claims. Referring now to the drawings, ?and particularly to Figs. 1, 2, 3 and 4, one of my improved clamps struction, combination and arrangement of parts by which the said objects and certain other ob jects, hereinafter appearing, are e?ecte'd, all as fully described with reference to the accompany ing drawings and more particularly pointed out in the appended claims. 0 ' . In the drawings-? is there generally indicated by the reference character ll]. Said clamp I0 is shown in asso ciation with a pipe II which extends through an opening l2 in a web, ?ange, or the like I 3 of a supporting means 'forthe pipe. Clamps as M, in ?exible clamp constructed according to the in the present embodiment of the invention, are vention, the clamp being shown in its relaxed 40 adapted to? bev used in pairs as illustrated in Figs. condition upon a pipe where it is poised prepar 6, '7 and 8 where the clamp 10 and a similar atory to being slid endwise for disposal in a look clamp ID? are shown in assembled cooperative ing position between the pipe and the side wall clamping relation with the pipe ll?. Since, how Fig. 1 is aside elevational view of a resilient of an opening within a pipe supporting member; Fig. 2 is a View similar to Fig. 1 but illustrating ever, both of the clamps l0 and iii? are identical, a detailed description is herein given of only the the clamp, partially ?exed, in the aforesaid look clamp VH] ?and the corresponding parts of the clamp l0? are indicated by the same respective ?reference characters with a prime added. Fig. 3 is 'a transverse s'ectionalview taken on The clamp 10 may be pressed into shape from the line 3--3 of Fig. 2; " Fig. 4 is a perspective view of the clamp shown 50 a sheet metal stamping of suitable thickness. Thus said clamp consists of a generally strap in the lower numbered ?gures; like body comprising as its center portion a bow Fig. 5 is a side elevational View, partly in sec tion, illustrating one clamp in seated relation be member M which is bent inwardly between its ing position; > . > . tween a pipe and the side wall of an opening in a supporting means for the pipe, and a second ends for eifecting a saddle or support engaging section I5. The saddle l5 includes a pair of 2 2,288,899 wings I6 and I1 extending oppositely from and transversely of the member I4, said wings I6 and I1 being curved inwardly in an amount to cause their outer periphery to correspond substantially to a peripheral are upon the side wall of an open ing as I2 into which the saddle I5 is to be in serted. Seating means for the pipe II are provided at opposite ends of the bow member I4, such seat ing or driving it to the right into the position shown in Fig. 2 incident to ?exing the resilient bow member I4 inwardly. In the present instal lation where a pair of clamps ID are to be em ployed the opening as I2 will be suf?ciently large in diameter that the bow member I4 ?rst in serted does not ?ex su?iciently far to cause placement of the axial elements as 20 and 2I in the seat sections I8 and I9 ?atly upon the pipe ing means respectively comprising concavo-con 10 II. Neither will the resilient ?ngers as 24 and 25 upon these seat sections be forced completely vex pipe seat sections I8 and I9. The concave downwardly over the pipe II wherefore crescent spaces as that indicated at S in Fig. 3 will exist between said seat sections and the pipe. It will curvature of the pipe as I I upon which they are be understood, however, that more than two to be seated when a pair of the devices is in clamps may be placed about the pipe in an in stalled. Hence the axial elements upon the inner stallation or that but a single clamp may be periphery of the seat section I8 are substantially used and in the latter instance the angularity of parallel as are the axial elements upon the inner the seat sections with the bow member, longi periphery of the seat section I9. The bow mem ber I4 is both ?exible and resilient and is shown . tudinally thereof, will be so chosen that the axial elements as 20 and 2I will lie ?atly along in Fig. 1 in its relaxed condition where it will be the pipe surface when the bow saddle registers seen that said axial elements as 29 and 2| upon with the side wall of the opening I2. the seat sections I8 and I9 converge outwardly Following insertion of the ?rst clamp II) in the of the device and generally toward the center of manner described, the second clamp I 0' will have said bow member I4. But when the saddle of the the seat section I9? at its leading end inserted bow member is pressed inwardly, said member between the pipe I I and the opening I2 at the will be distorted for causing the axial elements diametrically opposite side of such opening with as 29 and 2| to assume mutually aligned posi-' respect to that at which the saddle I5 of the tions to enable them to lie ?atly along the pipe 30 clamp I0 is disposed; see Fig. 5. Thereupon the I I as shown in Fig. 6. clamp ID? will be forced home by shifting it to A pair of pipe gripping ?ngers 22 and 23 pro the left along the pipe II until the saddle I5? iect oppositely from the seat section I8 and registers with and receives the wall section of transversely with respect to the bow member I4. the opening I2 at said diametrically opposite These ?ngers 22 and 23, as well as corresponding ?ngers 24 and 25 which project oppositely from 35 side. Normally, the second of the clamps, III?, the seat section I9, are curved to effect with their _ will be inserted through the opening I2 from the side opposite to that at which the trailing end respective seat sections a con?guration simulat of the ?rst inserted clamp is positioned so that ing that at the shorter radius end of an ellipse should any misalignment develop between the as is clearly illustrated in Fig. 3 where the con ?guration of the seat section I9 and a circular 40 clamps I0 and III? while the second clamp is being axially moved to the assembled position, section of the pipe I I are visible for comparison. the deflecting sections as 21' or 30' will simply These pipe gripping ?ngers as 24 and 25 as well slide along the de?ecting sections as 29 and 28 as the seat sections as I9 are resiliently ?exible of the clamp I0 without blocking advancement so that when said seat sections are pressed radi faces of the seat sections I8 and I9 describe a simple curve corresponding substantially to the ally inwardly of the pipe, the ends of their as- , of said member I9?. Ordinarily driving impacts will be applied to the drive lip 26' for forcing said clamp to the left into the position shown in Fig. 6 with the bow member I 4' thereof ?exed. gagement with the pipe, they, together with their Incident to such ?exing of the bow member I4?, associated ?ngers as 24 and 25, will ?atly en gage the pipe while the resiliency of the ?ngers 50 the force imparted thereby through the seat sec tions I8? and I9? upon the pipe II will slightly will cause them to grippingly engage the pipe. de?ect such pipe toward the seat sections I8 One end of the clamps as I0 constitutes the and I9 upon the opposed clamp II! so that when leading end thereof since it is the end which is the clamps II] and ID? are both in their home normally advanced foremost along the pipe and positions, the bow members I4 and I4? will both through the opening as I2. The opposite end of be ?exed inwardly su?iciently far to cause the the clamp is the trailing end and may have there sociated ?ngers as 24 and 25 will be forced apart. vWhen the seating sections are pressed into en in an upwardly de?ected driving lip 26 which may be struck by a suitable driving implement for forcing the clamp into the opening. The lead ing edges of the ?ngers as 24 and 25 near their ends have backwardly directed de?ecting edge sections 21 and 28, whereas the leading edges of the ?ngers 22 and 23 have similar de?ecting edge sections 29 and 30. It is the function of these de?ecting sections to prevent the second inserted of the clamps from lodging against the ?rst inserted clamp in the event of said clamps becoming misaligned circumferentially of the pipe. This will be explained more fully presently. The ?rst step in the assembly of a pair of my improved clamps with a pipe as II and a sup porting means as I3 therefor is to insert the leading end of one of the clamps through the oversize opening or hole I2 as illustrated in Fig. 1. Thereafter the clamp is forced home by press axial elements as 20 and 2I upon the seat sec tions as I8 and I9 to lie ?atly upon the pipe. Furthermore, the seat sections while in this seated relation will have advanced the pipe grip ping ?ngers as 24 and 25 su?iciently onto the pipe while expanding them to cause them to ?atly or uniformly engage the pipe as illustrated in Figs?? and 8. It will be seen, therefore, that when the clamps are fully installed, the seat sections, including their pipe gripping ?ingers as 24 and 25, will engage the pipe over a substantial area to sta bilize the bow members as I4 against lateral de ?ection circumferentially of the opening I2 and to augment the frictional resistance to relative movement between these seat sections and the 'pipe. Moreover, the curved wing extensions I6 and I?! of the saddles I5 and I5? conform to the circular side wall of the opening I2 to increase 3 2,283,899 the bearing area between such saddles and the supporting means I3, thus reducing the pres oppositely from each of said seating sections and laterally with respect to said bow member, and backwardly inclined de?ecting edge sections upon and adjacently to the extending ends of at least sure per unit of area within the saddles and the rapidity with which .wear would occur ?between these surfaces should relative vibratory move 5 part of said ?ngers. . ' ment be incurred between such saddles and the 3. A clamp of the class described comprising supporting means l3 during service. of the as a resiliently ?exible bow member, pipe seating sembly. means at the ends of said bow member and fac My improved clamping means, since it is made from a sheet metal stamping capable of being pressed into the desired shape by conventional ing inwardly thereof, and a support engaging portion on said bow member intermediate said seating means and facing outwardly of said bow die means, has a; great advantage from the. standpoint of economical production. The de member. > 4. A clamp of the class described comprising vice is also more easily installed than the prior a resiliently ?exible bow member, concave pipe devices which have required the placement and 15 seating means at the ends of said bow member manipulation of threaded members as nuts and and facing inwardly and extending laterally bolts and/or rivets. The ?assembled installation thereof, and a concave support engaging portion is self-locking to prevent it from becoming . on and laterally traversing said bow member in loosened while in use. It also incurs the further termediate said seating means, and the concav advantage of providing a noiseless yieldable 20 ity of said support engaging portion facing out cushion support for holding the pipe in the de wardly of the bow member. sired position. 5. A clamp of the class described comprising It will be obvious to those skilled in the art a resiliently ?exible bow member, concave pipe that many changes may be made in the single seating means at the ends of said bow member embodiment herein disclosed without departing 25 and facing inwardly and extending laterally from the spirit of the invention, wherefor I claim as new and desire to secure by Letters Pat ' thereof, a concave support engaging portion on and laterally traversing said bow member inter mediate said seating means, the concavity of said ent, the following: 1. In a clamp of the class described, a gen support engaging portion facing outwardly of erally strap-like body comprising a resiliently 30 the bow member, and pipe engaging ?ngers ex ?exible bow member, plate-like concavo-convex pipe seat sections respectively at the ends of said bow member, the concave sides of said bow mem ber and of said seat sections being upon the in ner side of said clamp, an out-turned driving lip 35 tending oppositely from each of said seating means and laterally with respect to said bow member. 6. A clamp for securing a pipe or the like ex-? tending through a relatively large opening upon the end of one of said seat sections, and inwardly curved pipe engaging ?ngers extend ing oppositely from each of said seating sections and laterally with respect to said bow member. through a support comprising a plurality of resiliently ?exible bow members having their con cave sides facing the pipe and arranged axially thereof and spaced angularly thereabout and ex 2. A clamp of the class described consisting 40 tending through said opening in tensioned en of a strap-like body comprising a resiliently gagement with the pipe and opening, each of ?exible bow member having leading and trailing said bow members being provided.l with pipe ends, plate-like concave-convex pipe seat sec seating means at the ends and facing inwardly tions respectively at the ends of said bow mem thereof and with a support engaging portion ber, the concave sides of said how member and 45 intermediate said seating means and facing of said seat sections being upon the inner side ' of said clamp, pipe engaging ?ngers extending outwardly of the bow member. . ' CLAUDE M. BAKER.