Abstract:
A single strand cord of single filaments having similar diameter lay length and direction with at least one core filament positioned with the filaments in the next layer and filaments laid on the cord in one layer positioned with another layer.
Abstract:
Elevator coated ropes or belts are disclosed. The coated rope or belt may include at least one cord and a jacket retaining the at least one cord. The cord may include a plurality of filaments. The filaments are free of second-order helical structure. In a first embodiment, the filaments includes at least one inner filament and a plurality of outer filaments surrounding the at least one inner filament. The outer filaments are bunched together by forming a first- order helical structure through the length of the cord. In a second general embodiment, the filaments are free of both first- and second-order helical structures. The filaments are bunched together by a restraining loop or adhesive at one or more locations along the length of the cord. Methods of making the tension cord are also disclosed.
Abstract:
Изобретение относится к канатному производству и может быть использовано для армирования монолитных строений и других изделий из бетона. Задача заключается в создании самовыпрямляющегося арматурного элемента. Арматурный канат содержит центральную проволоку и навитые вокруг нее по спирали повивочные проволоки с периодическим профилем. На наружный участок поверхности повивочных проволок нанесен периодический профиль, выполненный в виде наклонных выступов над образующей обжатой поверхности каната. Участки поверхности повивочных проволок, контактирующие с другими проволоками, выполнены в форме спирально расположенных плоских площадок. Канат закрепляют у основания сооружения и в каждом из циклов заливки фиксируют между ранее сформированной частью сооружения и распределительным шаблоном. Канат подают через обводные ролики и направляющую проводку с катушек, расположенных у основания. Перед каждым циклом заливки шаблон отводят на величину формируемого участка. Каждый арматурный элемент является цельным по всей длине сооружения. Соединение перпендикулярных элементов осуществляют втулками или вязальной проволокой.
Abstract:
L'invention concerne un pneumatique à armature de carcasse radiale, constituée d'au moins une couche d'éléments de renforcement métalliques, ledit pneumatique comprenant une armature de sommet, elle-même coiffée radialement d'une bande de roulement, ladite bande de roulement étant réunie à deux bourrelets par l'intermédiaire de deux flancs. Selon l'invention, au moins 85% des éléments de renforcement métalliques d'au moins une couche de l'armature de carcasse sont des câbles métalliques non frettés présentant au test dit de perméabilité un débit inférieur à 20 cm 3 /mn et au moins 5 % des éléments de renforcement de ladite au moins une couche de l'armature de carcasse sont des câbles comportant au moins un brin constitué de fibres multifilamentaires textiles.
Abstract:
A steel cord (50) comprises a core layer and an outer layer. The core layer comprises a number of first steel filaments (10) and the outer layer comprises a number of second steel filaments (20). The outer layer is helically twisted around the core layer. The first steel filaments have a twisting pitch greater than 310mm. At least one of the first steel filaments (10) is wavy preformed in one plane. At least one of the second steel filaments (20) is polygonally preformed.
Abstract:
Method of manufacturing a metal cord with three concentric layers (C1, C2, C3), of the type rubberized in situ, i.e. incorporating a composition made of rubber in the uncrosslinked state referred to as “filling rubber”, the said cable comprising a first, internal, layer or core (C1), around which there are wound together in a helix, at a pitch p2, in a second, intermediate, layer (C2), N wires of diameter d2, N varying from 3 to 12, around which second layer there are wound together as a helix at a pitch p3, in a third, outer, layer (C3), P wires of diameter d3, P varying from 8 to 20, the said method comprising the following steps: a first sheathing step in which the core (C1) is sheathed with the filling rubber; a first assembling step by twisting the N wires of the second layer (C2) around the core (C1) thus sheathed in order to form, at a point named the “assembling point”, an intermediate cord named “core strand” (C1+C2); downstream of the said assembling point, a second sheathing step in which the core strand (C1+C2) is sheathed with the filling rubber; a second assembling step in which the P wires of the third layer (C3) are twisted around the core strand (C1+C2) thus sheathed; a final twist-balancing step.
Abstract:
The invention pertains to the production of cables and can be used for reinforcing single-block constructions and other articles made of concrete. The purpose of the invention is to create a self-rectifying reinforcing member. The reinforcement cable comprises a central wire and layer-forming wires spirally wound around the same and having a periodical profile. A periodical profile is applied on the outer section of the surface of the layer-forming wires and is made in the form of inclined protrusions above the generatrix of the crimped surface of the cable. The sections of the surface of the layer-forming wires in contact with other wires are made in the form of spirally-arranged planar flats.