GB573695A - Improvements in or relating to metal hose clips - Google Patents

Abstract

573,695. Band clips. JAMIE, R. C. S., and HUNT & TURNER, Ltd. Aug. 17, 1943, No. 13395. [Class 44] A multiple band clip particularly for use on aircraft for making fluid-tight joints between adjacent ends of metal pipes joined by rubber hose-pipe reinforced by metal sheathing in sections, comprises two or more separate bands of metal strip, wire, or cable, located in parallel planes, each band having terminal loops the space between which is bridged by a curved strip, the loops receiving spindles or tubes having transverse holes to receive one or more tightening screws. The gap between the loops at the ends of each band is bridged by a curved strip. Fig. 1 shows two bands 1, 2 of transversely curved cross section except at the ends which are bent into loops 4, each secured by spot-weldings 5. One pair of adjacent loops receives a spindle or tube 6 having enlarged ends to retain the loops and a transverse threaded hole at 10, the other pair of loops receiving a similar spindle or tube 7 with a plain hole. The tightening screw 12 passed through the plain hole and engaged in the threaded hole 10 has its head 13 spaced from member 7 by a distance-piece having a conical surface 14 as described in Specification 573,698, and a cylindrical surface 15. A similarly shaped lock nut 21 is provided at the other end of the screw and the lock-nut may be finally secured by a split pin. Curved strips 9 bridge the gaps between the ends of the bands. The clearance between loop 4 and spindles 6, 7 allows the bands to rock slightly to bed themselves on the pipe and to facilitate this rocking the portion of the spindle within the loop may be spherical surfaced as at 27, Fig. 6. In place of the enlarged ends to the spindles, wire clips engaging annular grooves may be used to retain the bands so that if necessary they may be temporarily removed from the spindle to facilitate, for example, their application to a pipe in restricted space, Fig. 6 shows a clip having four bands in situ on a coupling-piece between two pipes 30, each spindle 28 having three transverse holes to receive corresponding tightening screws 29. The bands 23-26 are connected by transverse flexible strips 41 secured by spot welding 42 and preferably with corrugations 43 as described in Specification 573,697. When the bands are of wire, wire may be used in place of the strips 41.