Patent GB-852440-A (GB)
Title: Band clamp
IPC: F16L33/04
Filed: 1958-09-10
Abstract: 852,440. Band clips. AEROQUIP CORPORATION. Sept. 10, 1958 [Jan. 6, 1958], No. 29088/58. Class 44. A band clamp for clamping an object, for example a hose 13, comprises a frame 14 having a bottom wall 19 with an upper surface, opposed side walls 21, 22 extending upwardly from the bottom wall 19, an open front end 23 and an end wall 20 at the rearward end of the frame 14 and extending upwardly from the bottom wall 19 and being integral with the side walls 21, 22 thereby to define a chamber 35 in the rearward end portion of the frame, the end wall 20 having an opening, such as the slot 36 shown' in Fig. 1, extending therethrough, the bottom wall 19 having a slot 26 formed therein extending transversely between the side walls 21, 22; a screw 16 having a forward end and extending through said end wall opening; a nut 15 having an internally threaded hole, the nut 15 being on the screw 16 and disposed in said chamber 35; means on the frame 14 for retaining the nut 15 in the chamber 35 against movement of the nut 15 forwardly in the frame 14, nut abutment means on the frame 14 for limiting upward movement of the nut 15 in the chamber 35; a band 11 for encircling said object and having two end portions 41 and 54 extending through said slot 26, one band end portion 54 extending forwardly in the frame 14 and against the upper surface of the bottom wall 19, the other band end portion 41 being connected to the forward end of the screw 16 which is rotatable with respect to said other end portion 41; and a projection, such as the ridge 56 shown in Fig. 2, extending forwardly from said end wall 20 and in engagement with the nut 15 above the axis of the nut hole for inclining the nut 15 and the screw 16 in a direction of the forward end of the screw 16 downward toward the bottom wall 19, whereby as the screw 16 is turned to move longitudinally forwardly in the frame 14, said other end portion 41 of the band 11 will bear downwardly and slidingly against said one end portion 54 of the band. The said means for retaining the nut 15 in the chamber 35 against movement of the nut 15 forwardly in the frame 14 is in the form of a lug 34 struck upwardly from the rearward edge of the slot 26 and the said abutment means for limiting upward movement of the nut 15 is in the form of an ear 33 bent over from the end wall 20. A portion 25 of the bottom wall 19 is arcuate to provide a larger area of contact between it and the band 11 than would be the case if the bottom wall 19 was disposed in a plane, and an edge 32 of the bottom wall 19 defining one side of the slot 26 is slightly convex to produce a sharp bend in the end portion 54 where it is folded over the edge 32 and thereby help to restrain the end portion 54 from slipping. The slot 36 is elongated in a vertical direction to accommodate the vertical movement of the screw 16 which is provided with a finger grip 38 and the forward end of the screw 16 is in the form of a pin 39 which rotatably engages in a hole 44 in an anchor member 40 around which is wrapped the end portion 41 of the band 11 which is provided with two holes 43 aligned with the hole 44 also for engagement by the pin 39, the latter being peened at 46 to retain the end portion 41 and the anchor member 40 in engagement therewith. The anchor member 40 is provided with two projecting ears 52 which extend respectively over the side walls 21, 22, the walls having their edges 48 of cam shape for engaging the ears 52 when the member 40 is moved to slacken the band 11 so that the member 40 is prevented from engaging in the slot 26. U.S.A. Specification 2,466,755-is referred to.