Abstract:
A process for producing an eye at one or both ends of a coverbraided rope, the process comprising the steps of: a) providing a spacer; b) situating the spacer proximal a splice braid zone of an eye of the sling formed of the core rope; c) forming with a braiding machine a braided sheath about the splice braid zone to about the location where the splice braid zone meets its eye and covering at least portions of the spacer with at least a portion of the braided sheath; d) withdrawing from converging braid strands the eye having had its splice braid already covered by the braided sheath; e) forming with the braiding machine a length of hollow braided sheath; f) severing the length of hollow braided sheath; g) attaching to the spacer a severed end of the hollow braided sheath formed of the same strands that form at least a portion of the braided sheath and subsequently pulling the spacer out from between the braided sheath and the core rope in a direction that draws the severed end of the braided sheath into the braided sheath and causes it to occupy a position that previously was occupied by the spacer.
Abstract:
A jacket for a load-bearing, lengthy body, wherein the jacket is comprised of a plurality of braid elements which, when braided, enclose at least a portion of the lengthy body, and wherein the braid element is comprised of a braided ribbon. A method of forming the jacket is also described.
Abstract:
The invention relates to a continuous method for producing a fiber-reinforced composite material consisting of multiple fibers embedded in a polymer matrix, in particular for producing a tension member, said method having the following steps: -providing at least two rovings, -spreading the at least two rovings, -joining the at least two spread rovings such that the at least two joined rovings form fiber layers that are arranged one above the other and/or one next to the other at least in some regions, -impregnating the at least two joined rovings with a polymer and/or a polymer precursor, and -pultruding the at least two impregnated rovings.
Abstract:
A process of producing an eye in a rope (35), the process including the following steps: providing a strength member core (37) of the rope and further comprising the steps of: (a) situating a removable elongate object adjacent to at least a portion of the strength member core (37) of the rope; (b) subsequently covering the strength member core (37) of the rope and the removable elongate object with at least a portion of a braided sheath (398) formed of strands (397); (c) attaching to the removable elongate object a portion of a structure formed of the same strands (397) that form the at least a portion of the braided sheath (398); and (d) subsequently removing the removable elongate object from the braided sheath (398) so as to cause the portion of the structure attached to the removable elongate object to be drawn into at least a portion of the space within the braided sheath (398) enclosing the at least a portion of the strength member core (37) of the rope that was originally occupied by the removable elongate object, whereby a rope portion with an eye which a mainly coverbraided is economically produced. Also disclosed is a rope portion obtained with said process and a trawl including such a rope portion. Furthermore a trawl comprising a coverbraided rope sling / grommet, where the respective eye is free of any strand forming the braided jacket of the rope portion is disclosed.
Abstract:
In the method according to the invention in the manufacture of an elevator the following procedures are performed, -a movable supporting platform (4) and an elevator car (2), and possibly a counterweight (CW), are installed in the elevator hoistway (1), -the rope installation is performed, in which the elevator is reeved to comprise construction-time hoisting roping (3,3'), and the hoisting roping (3,3') is arranged to support the elevator car (2) resting on the supporting platform (4) supported in its position above the elevator car (2), -the elevator car (2) is taken into use to serve passengers and/or to transport goods, -the elevator car (2) is removed from the aforementioned use, - the service range of the elevator car is changed to reach higher up in the elevator hoistway (1) by lifting the supporting platform higher up in the elevator hoistway with hoisting means (22,30), -the elevator car (2) is taken back into the aforementioned use. In the aforementioned rope installation the elevator is reeved to comprise construction-time hoisting roping (3,3')/ which comprises one or more ropes, the longitudinal power transmission capacity of which is based at least essentially on non-metallic fibers in the longitudinal direction of the rope. In the method guide rails (G) to be fixed with guide rail brackets (b) can additionally be installed by the aid of installation means (8,9). The invention also relates to an elevator arrangement, with which the aforementioned method can be performed.
Abstract:
An object of the present invention is to make it possible to provide a cord, in particular, a cord for reinforcing a rubber article in which rubber permeation properties are improved by coating filaments as constituents of the cord with rubber in a reliable and stable manner. The cord of the present invention is produced by, when the metal filament is guided to an extruder and extruded together with rubber from a mouthpiece of the extruder so that the metal filament is coated with the rubber, juxtaposing plural metal filaments in the mouthpiece and extruding the metal filaments together with rubber.
Abstract:
A steel cord (1) comprising a core (3) formed by bundling three or more filaments (2) side by side without twisting and a sheath (5) of at least one layer comprised of plural filaments (4) wound around the core, characterized in that an arrangement of the filaments (2) constituting the core (3) at a section perpendicular to a longitudinal direction of the core differs between at least a part in the longitudinal direction of the core and the other part thereof, and all filaments (2) constituting the core (3) in all section parts are arranged in a rectangle having a long side of d x (n+1) and a short side of d x (1+1/2 1/2 ) when the diameter of the filament is d and the number of the filaments in the core is n. Such steel cords are used in a belt of a pneumatic tire. Also, these cords are produced by a tubular-type twisting machine having a specified structure.