A wrapped wire connection in which an elongated post having at least one sharp edge is wrapped with a standard insulated wire and an outer sleeve fits over the wrapped turns of the wire to apply, at least temporarily, mechanical pressure to the wrapped wire, causing the sharp edge of the post to pierce the wire insulation and thereby to form a permanent electrical and mechanical connection.

A number of wires are wrapped about a terminal. An insulation-free section of a first wire is initially wrapped about the terminal with a relatively low number of turns, e.g., two, leaving a short end portion which is directed axially along the terminal. The end portion of the first wire is then bonded to the terminal, the bonding operation compacting the end portion. Next, an insulation-free section of a second wire is wrapped about the terminal with a relatively low number of turns, e.g., two,...

A package composed of a single rectangular sheet of corrugated pasteboard providing a pair of juxtaposed compartments, the package construction includes a bottom wall, upstanding end walls and a top wall, the top wall being defined by the free ends of the pasteboard sheet disposed in overlapping relation over said brace; at least one integral upright brace formed by folding sections of the bottom wall; means for securing sections of the brace to each other; and a heat-shrunk, transparent, thermo...

A core yarn has a plurality of wrapper yarns wrapped under tension in both the clockwise and counterclockwise directions. The core is composed of staple fibers having substantially no twist so that the core has substantially zero tensile strength. The tensions on the wrapper yarns are balanced by each other and are so high as to compress the core and impart to the core a sinuous configuration along its length.

A pallet load of product is secured onto a pallet by enclosing the load including the top thereof in thermoplastic film which is heat shrunk to the load, to a sheet of thermoplastic film on the pallet under the load, and to the edge of the pallet therearound. The load enclosing film may be an inverted bag which covers the top and side of the load and the lower end of the bag is fused to said sheet which is on the pallet under the load. Alternatively, the side of the load may be covered by a slee...

A wrapped fin heat exchanger formed from a continuous length of tubing having a fin wrapped thereabout to provide an enhanced heat transfer surface is disclosed. A cylindrical core portion is formed from loops of tubing and a second cylindrical locking portion is mounted thereabout. The locking portion has bands which extend about and in engagement with the loops of the core portion to secure the heat exchanger in a predetermined configuration. By utilization of the locking portion and the core ...

An apparatus for producing a tape wrapped conductor by advancing and rotating the conductor as it moves from a source reel to a take up reel. Successively positioned adjacent the moving conductor are a first tape having an aluminum foil thereon, a drain wire, and an outer insulating tape, so that the tapes and the drain wire are drawn into a spiral wrap in successive overlying relationship by the advancing and moving conductor. The first tape is applied with its aluminum foil side facing outward...

A ribbon, preferably made of polytetrafluoroethylene and preferably in an unsintered configuration but having lens or trapezoidal cross section is used for wrapping elongated stock such as electrical conductors, tubes, or a removable mandrel, the wrapping to be made with overlapping edges followed by fusion to obtain a coherent tubular configuration.

An open coil compression spring is enveloped by frangible pliable metal foil forming a continuous wall enveloping all windings of the spring and secured against axial sliding on the spring. A thus shrouded or wrapped spring can be packaged or stored in bulk without danger of nesting or tangling with other springs. Prior to delivering the springs to a point of utilization the shroud thereon is removed by stripping the foil off the spring.

A composite gasket material composed of a core of elongated polytetrafluoroethylene wrapped with a high strength porous expanded polytetrafluoroethylene film is provided. The composite gasket material exhibits increased resistance to creep while in use so that thickness of the composite gasket material and thus gasket stress is maintained.