Abstract:
An adhesive tape comprises a backing or support layer (10) coated on one side with an adhesive, and formed with a multiplicity of weakened areas (11). The areas (11) may be isolated zones created by thermal bonding, and may be aligned in the cross-direction of the tape and disposed out of alignment in the longitudinal direction. The areas (11) can be rectangular, or may be trapezoidal with acute angled corners (13a, 13b) aligned in the preferred tearing directions and obtuse angled corners (13a, 13b) aligned in the longitudinal direction.
Abstract:
An adhesive tape in which a layer of waterproof material is applied to a woven or stitchbonded fabric (2). A layer of adhesive (6) is coated on the exposed face of the waterproof material (4).
Abstract:
An excimer or ablation laser is used to cut selected, e.g. warp yarns in a fabric, particularly in joining the ends of a papermaking fabric to make the fabric endless. Optical imaging and electronic guidance of the laser projection is used, and the laser beam may be directed down a probe tube (20), which extends into the fabric and is shaped to push aside yarns to enable the laser to be directed to a target yarn. The laser may also be used for welding yarns in a second stage of the fabric joining process.
Abstract:
A moulded filter medium, e.g. a filter cloth comprises a sheet of porous nonwoven material (1) which is pre-moulded and pre-formed to conform to and snugly fit into the recesses and contours of a filter press plate. The sheet may comprise sintered partially fused particles of plastics, metal or ceramic or a cast acrylic or methacrylic resin or polymer sheet, or a coagulated polymer or microporous foam. The cloth may include a support structure such as a perforated membrane or mesh (3) or a spiral link fabric (12) embedded in the sheet.
Abstract:
A woven fabric comprises at least two layers of cross-machine direction yarns, one layer having yarns of larger dimensions, e.g. diameter, and the other layer having yarns of smaller dimensions and/or 'shaped' (i.e. of non-circular cross-section). A seaming spiral is connected to the fabric by a seam binding yarn secured by at least some machine-direction yarns being looped about the seam binding yarn. The final yarn of the layer of smaller dimensioned or shaped yarns is displaced towards the opposite side of the fabric. The last two larger dimensioned yarns may be displaced towards the smaller dimensioned or shaped yarn layer, and the third yarn of the larger dimensioned yarn layer may have an intermediate diameter.
Abstract:
In a sem for e.g. papermachine clothing, interdigitating seaming loops (13, 14) embrace deformable yarns (17) inserted between the last cross-machine direction yarns (15a) and the opposed seaming loops (14, 13). Alternatively, an insert may be in the form of a ladder-like member (30) comprising one or more cross-machine direction members (31, 32, 33) and a multiplicity of machine direction members (34) extending beyond the members (31, 32, 33) to locate the seaming loops. Also possible is the use of a strip or tape of foamed or foamable material.
Abstract:
A filtration apparatus (10) comprises a band (11) of resilient material located with a cuff of fabric (14). The cuff (14) is integrally moulded to a body (16) of polymeric material. A tube or sleeve of self-supporting pleated filter material (17) is also secured to the said polymer body.
Abstract:
A temporary seaming aid for use in seaming a dryer fabric, comprising complementary parts (39) attached to two portions (31, 32) of a dryer fabric. The complementary parts are adapted for cooperation and enable the fabric ends which have interdigitating formations (33) thereon to engage. Engagement of the interdigitating formations allow a pintle wire (34) to be inserted therein to form a flexible joint resulting in seaming of the dryer fabric. The entire temporary seaming aid can easily be removed once the fabric ends are joined.
Abstract:
Apparatus for use in mounting and dismounting a warp beam (19), loaded with cannisters of warp thread onto or from a loom comprises a trolley (10), with a hoverpad (18) mounted under the trolley, and with a bracket (20) carrying warp healds and reels. Trolleys may be combined, to carry two beams together, one trolley being arranged at the end of each beam, and the respective end trolleys being connected to the trolley in front of or behind it.
Abstract:
A filter belt is described which includes or consists of at least one woven layer of cross-machine direction yarns (10) and machine direction yarns (11), some of the cross-machine direction yarns comprising twisted monofilaments (100), and the remaining cross-machine direction yarns comprising single monofilaments (101). The twisted and single yarns are disposed in a regular alternating pattern, and embodiments are disclosed with single monofilaments and twisted yarns alternating, pairs of twisted yarns alternating with single monofilaments, and pairs of single monofilaments alternating with single twisted yarns.