Abstract: A package is provided which is formed of a plastic film such as polyethylene or polypropylene. The package is formed to define an internal chamber to accommodate an article to be packed. A slit is provided in the wall and a hanger is provided a part of which extends through the slit. This part is provided with projections which lock the hanger against retraction into the internal chamber. The projections are rounded and/or wedge shaped to facilitate penetration of the hanger through the slit. According to the method by which such a package is formed the projections are shaped to penetrate through the slightly smaller slit without exceeding the elastic limit of the material from which the package is formed. Thereby the material can resume its original shape after the projections have been forced through the slit.

Abstract: A high pressure coupling is provided which comprises an adjustment nut with nipples extending therefrom in axial extension of one another. The nipples are provided with exterior threads and with conically shaped ends which are respectively engaged by ferrules. Each of these ferrules is engaged by a coupling member having an interior thread which is in engagement with the threads provided on the associated nipple. Adjustment of the threads operates to pull the ferrules against the associated nipples. On each nipple is mounted a frusto-conical ramp adjacent which is provided an annular groove. Each coupling member is provided with a cylindrical arrangement of spaced fingers or a thin wall cylinder having protruding tips directed radially inwards. These fingers or the cylinder with their respective tips ride up the ramps until the tips extend beyond the ramps and are loosely accommodated in their respectively associated annular grooves.

Abstract: An air distribution system is provided which includes a source of intake air leading into a conduit through which the air is forced by a fan or the like. Provision can be made for heating the air. The conduit is a rigid structure provided with a plurality of openings. In association with these openings, there are provided control devices of various types. One type of control device which is employed is used to change the direction of flow of the air upon the exiting of this air from the conduit. In another type of control device the diffusion of the air is controlled upon the exiting of the same from the conduit. Another type of device which is employed is an internal device designed to intercept at least part of the flow of air within the conduit and to divert the same through the associated opening. Some of these devices may be controlled by a signal generated at a remote signal source under the control of a sensor which is located in the area or enclosure in which air is to be distributed.

Abstract: A load-bearing building panel capable of forming an external wall cladding or roof component has a solar heat collecting capacity in the form of channels for heat exchange fluid incorporated in the fabric of the panel. The panel is made of a structural plastics material, such as G.R.P. laminate, successive layers being moulded to simulate tiles. On the back or underside, longitudinal reinforcing beams are built in during laying up of the panel. Between the beams cores or formers defining a matrix or channels are encapsulated in layers of the G.R.P. Wax cores are melted or dissolved out after curing of the panel; metal formers remain embedded in the fabric of the panel. The matrix is connected by flow and return pipes to a heat exchange system within the building. Panels intended for roofing have ridge flanges and wall plates moulded into the substrate at the appropriate pitch angle, and a split capping tube embraces the ridge flanges. A pitched roof formed by oppositely sloping panels is self-supporting.

Abstract: A swab is formed of an elongated support having knit terry pile mounted thereon to form a head. The head is fixed to the support by cementing, staples, binding and/or folding of the support to form a U-shape. The head may also be fastened to the support by quilting. Another method of fastening the head on the support is to fasten a corner of a quadrilateral of knit terry pile to the support at an end of the support, folding the pile to cover the end, and wrapping the thusly folded pile around the support.

Abstract: A method of securing a holster to the shoulder of a person wearing a neck encircling garment, such as a tie, by encircling the shoulder of the person with a loop and connecting this loop to the neck encircling garment. The loop can be connected to the neck encircling garment with a second smaller loop which engages around the neck encircling garment and which engages in slots formed in the first loop.

Abstract: The red, green and blue video output of a camera, telecine channel or video tape recording is fed into a video effects unit including red, green and blue circuits, each of which are the same. Each of these color circuits includes an emitter follower feeding into a paraphase amplifier which produces inverted and non-inverted signals which are fed into an emitter follower arrangement, across which is coupled a potentiometer having a tap feeding into an amplitude mixer. Also feeding into the amplitude mixer are signals derived from an audio circuit, signals derived from a blanking circuit and signals derived from a luminance circuit. These four signals or selected of these signals are amplitude mixed and fed into a further emitter follower arrangement and thence to a buffer amplifier, whereat a clamping circuit exerts a clamping action based on clamping pulses generated from a synchronization or composite video signal.

Abstract: Two pairs of interdigitated rotatable members are arranged at right angles to one another and are connected by a chute leading downwardly away from one of the pairs and transversely to the other of the pairs so that paper can be first cut up into strips and then subsequently recut to form a confetti. The rotatable members are formed of spools coaxially mounted on a drive shaft, each of the spools being formed of circular or cylindrical members with lesser diameter portions therebetween for purposes of spacing. A comb is provided in association with at least one of the rotatable members and is provided with extra tongues accommodated in grooves formed on the rotatable members in order to strip paper therefrom in order to prevent the paper from becoming entangled in the rotatable members and jamming the same.