摘要:
Apparatus and method to produce a loop pile patterned effect bonded carpet. An endless pattern chain is employed which has interchangeable blades of various heights and notch configuration to produce high and/or low loops between sets of lower blades which cooperate therewith to form loops.
摘要:
Machine for producing non-woven floor coverings by ramming lap or texturized filament cables, by a beating blade into grooves cut into a drum. The ramming of the lap or cables by the balde, and the indexing of the drum to bring successive grooves therein into alignment with the beating blade, are effected by one mechanism without the necessity of using auxiliary shafts and mechanisms. The drum is made for free rotation with respect to the machine and frame, a main shaft being mounted coaxially of the drum. At the two ends of the main shaft there is formed a large crank with an eccentricity equal to half the vertical motion of the beating blade, and a small crank with an eccentricity equal to a quarter of the pitch between the grooves on the drum. The small crank is joined to a middle traverse by a rotating link, and the said traverse slides along vertical guides. The two vertical guides are fixedly connected to each other by upright and lower horizontal members, thus forming a frame which is joined to the machine body.
摘要:
A machine for making nonwoven floor coverings. A felt layer is rammed into grooves, formed in a drum, by a "flying" ramming tool moving a follow each groove, the ramming tool being driven by crank mechanism, the guide of this mechanism being a connecting rod hinged parallelogram. The drum is continuously turned over by two opposite cogs rigidly connected with the ramming tool by a frame which moves therewith. The felt with the folds on the drum is adhered by a binding substance, which is cured or dried on the drum surface.
摘要:
An extrudate element is inserted into a base material so that a portion of the extrudate enters into or traverses the base material. The inserted extrudate element, the constituent of the base material, or both are composed of an expandable extrudate containing an expansion agent. The expansion agent is activated during or after insertion of the extrudate element to cause enlargement of the expandable extrudate and/or the substrate or base. This enlargement fixes the extrudate element into the base material by tightening the inserted element against the base material to wedge it in place, as by causing portions of the inserted element to enter interstices of the base material, or by causing the inserted element to expand on both sides of the insertion opening to a diameter greater than that of the insertion opening. The insertion and subsequent fixing into a base material of a plurality of elements produces a pile surfaced article. In one embodiment a plurality of elements composed of a foamable material containing a suitable foaming agent is extruded directly through a base material and foamed, thereby locking the foamed elements into the backing to form a pile surface of foamed extrudate.
摘要:
A HIGH-LOFT, NONWOVEN FABRIC AND A METHOD FOR PRODUCING IT THAT COMPRISES ADVANCING A SURFACE HAVING AN OPEN PATTERN OF TACKY ADHESIVE, BONDING A PLURALITY OF FLEXIBLE ELEMENTS IN THE ADHESIVE RANDOMLY AT LEAST PARTIALLY IN THE MACHINE AND CROSS DIRECTIONS, PREPARING A WEB OF OTHER FLEXIBLE ELEMENTS EXTENDING SUBSTANTIALLY IN THE MACHINE DIRECTION, BONDING THE WEB IN THE ADHESIVE, AND AT LEAST PARTIALLY CONSOLIDATING THE ADHESIVE INTO A BACKING LAYER
WHILE LOOPING THE MACHINE DIRECTION ELEMENTS OUTWARDLY FROM THE ADHESIVE BACKING LAYER.
摘要:
An apparatus for making fibrous products having a nozzle for spraying spinning filamentary material. An opposed pair of movable endless belts are spaced apart to form a gap. The nozzle is moved back and forth across the gap and aligned with the gap.
摘要:
A closed cycle gas turbine power plant has a compressor, a nuclear reactor disposed in a pressure vessel and a turbine which is connected to receive and be driven by working fluid compressed by the compressor and heated by the nuclear reactor. A heat exchanger receives the working fluid expanded in the turbine and returns it to the compressor, the turbine and the compressor being removably disposed within a first recess in the pressure vessel and the heat exchanger being removably disposed in a second recess in the pressure vessel.
摘要:
ING SURFACES DISPOSED IN THE PATH OF THE MATERIAL ISSUING FROM THE EXTRUSION ORIFICE.
A METHOD OF MAKING NON-WOVEN FABRICS COMPRISING SPRAY SPINNING A SUBSTANTIALLY CONTINUOUS FILAMENT OF THERMOPLASTIC POLYMERIC MATERIAL AND COLLECTING THIS MATERIAL BY MEANS OF OPPOSED SPACED-APART MOVING COLLECT-
摘要:
A high-loft, nonwoven fabric with a substantially continuous backing layer of adhesive and a multiplicity of fibers looped outwardly from the backing; and a method of making the fabric by first embedding a web of fibers in an open pattern of adhesive and then consolidating the adhesive into a substantially continuous backing layer while looping the fibers outwardly from the backing. In certain instances, the loops may be subsequently shorn, the backing may be stretched or perforated, or the fabric may be laminated to an additional backing or backings to change the final characteristics of the product.
摘要:
A LAYER OF NONVOVEN STAPLE FIBERS IS NEEDLE PUNCHED INTO A THERMOPLASTIC FILM. THE FIBERS ON ONE SIDE OF THE FILM ARE THERMALLY BONDED TO THE FILM. THE FIBERS ON THE OPPOSITE SIDE OF THE FILM ARE THEN SUBJECTED TO NAPPING AND SHEARING OPERATIONS. THE FILM IS PREFERABLY AN ORIENTED POLYPROPYLENE FILM WHICH FIBRILLATES DURING THE NEEDLING OPERATION. THE FABRIC IS USEFUL AS A LINING IN COATS.