E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
61/47
E21D 20/02 (2006.01) B65H 75/36 (2006.01) B65H 75/38 (2006.01) E04G 21/04 (2006.01) E21B 19/22 (2006.01)
Patent
CA 1253704
Abstract of the disclosure A device for storing a concrete feeding hose in a rock bolting device, comprising a reel for a hose, which reel is mounted rotatably on a supporter, and that end of the hose which is attached to the reel is con- nected to concrete feeding means. In order that the coiling device could be used for passing the hose into a drill hole and for drawing it out of the hole, the reel is surrounded by a ring-shaped supporting wall against which the hose is positioned when the reel is rotated in the decoiling direction. An unrotative guid- ing means is provided beside the supporting wall so as to guide the hose out of the reel by the action of an axial expulsive force exerted on the hose due to the rotary movement of the reel.
521104
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Oy Tampella Ab
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