Lengths of large dia. thermoplastic pipe are joined by heat softening opposed bell and spigot areas (21a, 22a) of the joint, spraying into the heat softened area molten resin particles, and allowing the particles to cool in situ to form a sealing filling (24). The pipe lengths are at least 10ft. long, have an internal diameter of at least 24 inches and are at least 1/8 inch thick. Easy and efficie...

An improved packing device is disclosed which features an upwardly biased bag table for receiving a stack of plastic bags. A press member holds down the uppermost of the stack of bags at its mouth end. A pickup device is brought into engagement with the upper surface of the uppermost bag of the stack as the pressure of the uppermost bag against the press member is momentarily reduced, so that the ...

An improved packing device is disclosed which features an upwardly biased bag table for receiving a stack of plastic bags. A press member holds down the uppermost of the stack of bags at its mouth end. A pickup device is brought into engagement with the upper surface of the uppermost bag of the stack as the pressure of the uppermost bag against the press member is momentarily reduced, so that the ...

A lashing device, designed preferably for the lashing of vehicles on a boat deck. The device consists of a locking unit (2), which comprises a restraining arm (10) which is harnessed to a spring (15) against a locking position for a sling (5) which connects to two hooks (3, 4). The sling, furthermore, works in a self-locking way within the locking position via the fact that the traction power in t...

The fixture device (1) comprises a stirrup-shaped attachment (2) fixed to a support part (3) on its one side. A hollow space (4) accommodates a number of parts (2A,2B) forming part of the stirrup, and is located on the support part opposite side. The stirrup parts (2A,2B) are angularly adjusted in the same direction, and between them is an opening (5). One of the spaced parts (2A) engages in a gri...

Procedure for making a slippery surface on a training course for drivers of motor vehicles such as cars, buses and motorcycles. According to the procedure, round or granule-shaped particles of a cross-linked , hydrophilic carbohydrate polymer, which forms a three dimensional network held together by covalent bonding, is spread onto the driving course. This polymer is principally insoluble in water...

Device for ventilating a room, for example a bathroom, through a sanitation device, for example WC, provided with a water lock 6. A valve device 2 is inserted between the side of the water lock communicating with the room and the outlet side 11. The valve opens when there is a positive pressure difference between said sides and thus establishes communciation between the room and the outlet side. <...

The downflow conduit is for leading rain water from a roof reservoir either wholly or partly inside the building. To prevent freezing, the conduit (2) is surrounded by a casing (6) extending from the reservoir down to a point where the conduit is inside the building or in frost free ground. - The casing has apertures at the base of the roof reservoir, and again at its lower end where they are open...

The invention is a thin, reinforced construction slab consisting of at least two sub-slabs (11, 12) that are laminated around the reinforcement (13) by means of gluing.

Described is a novel marker for wire ropes, in the form of a polymer, e.g., polyester film carrying a highly abrasion-resistant impression. This polyester film is wound around a support element in spirally overlapping manner and is worked into a gap between the bundles of strands, at the same twisting angle as the latter.