F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/38, 18/934
F16L 11/08 (2006.01) B32B 25/02 (2006.01)
Patent
CA 1068222
Abstract of the Disclosure The invention concerns a rubber hose including an insert or core made of a spiral system of fibre-reinforced synthetic resin and a circular- woven or helically developed insert or core system, which hose is capable of withstanding the combined effect of simultaneously acting stress forces of internal and/or external pressure or vacuum and axial tensile and/or torsion- al loads. The invention further concerns a process for the manufacture of such a hose. With the accelerating progress of technical development, in- creasingly a demand arises for hoses capable of bearing very large combined stress loads, such as high external pressure, tensile load, torque and vacuum which in many cases act simultaneously. Such hoses are required e.g. for deep-sea drilling, as well as for supply pipe lines, flexible deep-sea con- duits or cables, flexible boring bars and for flexible pipe line systems for pile-driving hammers. Known hoses comprising internal stiffening helically wound cores are not suitable for bearing very large stress loads, due to the fact that coil winding at a low pitch angle of the steel wire forming the stiffening system is very difficult when a certain limit in the cross- section of the wire is exceeded.
287487
Antal Sandor
Arvai Mihaly
Bartha Zoltan
Gorgenyi Peter
Meitzen Nandor
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