摘要:
An article comprising a magnetic shielding thermoplastic polymeric material containing a powdery ferrite and a heat shrinkable thermoplastic polymeric material layer. Due to its specific structure, this article is excellent in applicability over any electrical component, and may provide over the component a cover having excellent magnetic shielding and mechanical strength properties. It may also bring about a substantial increase in inductance of the component.
摘要:
Apparatus and method for applying cover or cladding elements of heat shrinkable plastics material upon the externally screw threaded metal necks of dispensing containers such as toothpaste tubes comprises a rotatable turntable for mounting a succession of containers and presenting them at an insert applying station having means for advancing the tubular open end of a continuous length of synthetic plastics tubing toward a positioned container neck and for operating upon the leading end of the tubing to separate therefrom successive cover or cladding elements of desired length and dispose each on a container neck prior to a heat shrinking operation for permanently securing the elements upon the threaded necks.
摘要:
Apparatus and method for applying cover or cladding elements of heat shrinkable plastics material upon the externally screw threaded metal necks of dispensing containers such as toothpaste tubes comprises a rotatable turntable for mounting a succession of containers and presenting them at an insert applying station having means for advancing the tubular open end of a continuous length of synthetic plastics tubing toward a positioned container neck and for operating upon the leading end of the tubing to separate therefrom successive cover or cladding elements of desired length and dispose each on a container neck prior to a heat shrinking operation for permanently securing the elements upon the threaded necks.
摘要:
BIAXIALLY ORIENTED HEAT SHRINKABLE PLASTIC FILM IS WRAPPED AROUND A MANDREL-SUPPORTED TUBULAR BODY OF UNCURED ELASTOMERIC MATERIAL SO THAT THE APPLICATION OF CURING HEAT WILL CAUSE THE FILM OF SHIRNK IN DIRECTIONS WHICH LIE AXIALLY AND CIRCUMFERENTIALLY OF THE TUBULAR BODY AND REMOVE WRINKLES IN THE FILM AND COMPRESS THE TUBULAR BODY.
摘要:
A device for forming a connection between a first and second group of glass fibers with each fiber of the first group being held in alignment with a given fiber of the second group characterized by an elongated carrier member having longitudinally extending grooves and a shrinkable tube telescopically received on the elongated member. In forming the connection, the glass fibers of one group are inserted individually in separate grooves from one end of the carrier member and the fibers of the second group are inserted from an opposite end until their end faces abut and engage the end faces of the respective fiber of the first group. After insertion, the tube is shrunk such as by a heat shrinking step so that the fibers are tightly and firmly held in their respective grooves by the shrinkable tube.
摘要:
Wraps to hold line guides on a fisherman's rod are formed as sleeve-like units by the embedment of a length of wound thread in a clear, elastomeric plastic resin, or by forming a cylindrical sleeve of elastic plastic resins. The sleeve-like wraps are expanded in diameter by an expanding tool and then chilled, or "frozen" to remain in an expanded state after the expanding tool is removed, and while expanded, the wraps are fitted onto a fishing rod and over the feet of line guides on the rod. Thereafter, warming of the frozen wraps to ambient temperatures permits them to contract to their original size to fit tightly upon the rod. A turret type of apparatus including expanders is provided to receive, expand, freeze and permit removal of the expanded wraps from the expanders for production assembly operations. An extrusion type of apparatus is provided to form wraps by winding thread such as nylon upon an inner sleeve of plastic and thereafter, embedding the thread in an outer sleeve of plastic as a continuous operation.
摘要:
A process of wrapping a substrate to insulate or protect it, wherein a tape comprising a cross-linked copolymer derived from an ethylenically unsaturated hydrocarbon and a carboxylic acid ester having ethylenic unsaturation is wrapped around the substrate, and subsequently shrunk. Although the tape is cross-linked, it nevertheless fuses sufficiently to bond to itself to form an integral structure. The substrate can if desired be removed, the tape serving as the inner layer to a hose.
摘要:
Method of preparing a shirred elastic, flexible article by attaching to a sheet material a thin layer of flexible, plasticized vinyl chloride polymer material which is heat shrinkable in only one direction thereof, and thereafter heating the layer of vinyl chloride material to effect shrinkage thereof and shirring of the sheet material which is attached thereto.
摘要:
An article of manufacture comprising a substantially nondeformable cylinder of polytetrafluoroethylene and a substantially unperforated cylinder of a copolymer of tetrafluoroethylene and hexafluoropropylene uniformly bonded together to form an integral structure consisting entirely of the two polymers.
摘要:
A method of manufacture of bow string for an archery bow utilizing shrinkable plastic tubing such as for instance heat shrinkable plastic tubing, for forming the loops on the ends of the bow string, for coaction with the ends of the bow in the propelling of an arrow. The purpose is to provide an arrangement for the expeditious forming of such loop portions and securement of the free ends of the strand material of the bow string to the latter. Applicant''s arrangement obviates the heretofore utilized method of wrapping the base of each end loop of the bow string with encircling reinforcing cord. The use of shrinkable tubing materially expedites the formation of the bow string and makes a much more economically desirable bow string arrangement.