A mattress for supporting the human body, which is especially useful in hospitals or for home nursing of sick persons, comprises a body of open-cell foamed synthetic plastics material, with air passages 29 extending up through a central region 5, 19, 22 of the body. The air passages 29 are open through the base 5 of the central region of the mattress.

A mattress for supporting the human body, which is especially useful in hospitals or for home nursing of sick persons, comprises a body of open-cell foamed synthetic plastics material, with air passages 29 extending up through a central region 5, 19, 22 of the body. The air passages 29 are open through the base 5 of the central region of the mattress.

The lip of a glass container is prepared for sealing with a thermoplastic- coated foil by applying at least one layer of an adhesive comprising a mixture of ethylene-acrylic acid copolymer of melt index

The supply of pressure medium to one or the other side of a piston (1) in a cylinder (4) is controlled by an alternating valve (5) reversible between its end positions. In the cylinder wall are two outlet holes (11,14), one of which is freed in the one end position of the piston, and the other is liberated in the other piston end position. - The pressure medium is conducted to one end of the alter...

The invention concerns an apparatus in a metal working machine for controlling the movement of a work tool.The apparatus is simple in design and construction and enables safe and functional automatic control of the tool.The apparatus includes a valve unit (2), which is situated in a piston cylinder housing (1) and which includes a valve body (26) which is designed to be automatically moved by flui...

The coupler includes an operating arm attachment device (25) including a pair of spaced parallel shafts (23,24) journalled horizontally on the operating arm stick and operating cylinder respectively. Two link arms (26) are journalled at the shaft ends and are each extended to form a free abutment portion (36). An implement attachment device (20) includes a locking device (11,21) which exerts press...

In the casting of a concrete floor, a guard rail 23 is first mounted on the free end portions of the form beams by easily detachable attachments 4 which grip around the upper flange of the form beams and are locked in position. During casting, the tubular pieces into which the posts fit are cast-in. After casting, the guard rail is transferred to these cast-in tubular pieces, after which the attac...

The door lock includes a plate fixed to a door panel having a stirrup, and a two-armed plate attached to the door frame. One of the arms has at least one aperture for a lock component which, . in the locked position, is inserted into the aperture and the stirrup. - The other arm of the second plate has an aperture to accommodate the stirrup in the locked position and cover the door panel plate in ...

The heat-insulated pipeline is for transport of temp. dependent media, such as oil or steam, and has welded joint positions. A damp-protecting casing is disposed outside the insulation. The parts of the casing covering the welded joints form sections comprising two halves releasably held together by retainers.

Sludge scraper for removal of surface sludge and/or bottom sludge, especially for a water treatment facility. The scraper consists of one or more pairs of retractable wings for which tow lines (31, 32) can be used to move them from the inlet end of the treatment facility (1) to its outlet end during an active sludge separation or move them back to the inlet end in a return movement. During the act...

The pincers have two crossing arms rotatably connected at an articulation. They have paired cutting edges partly for cutting the conductor, and partly for removal of the insulation, both functions being executed by a single cutting movement. The de-insulation of the conductor end then takes place by drawing the closed pincers outwards and past the cutting point. Both cutting pairs are located in f...

Arrangement for the extrusion of plastic tubular film, has two air flows. Device supplies air to the neck region of the plastic flow/plastic film. This is also the crystallisation zone. Above the extruder is a coaxial tubing arrangement which permits the extruded plastic from to move upwards, surrounded by a column of mixed ir streams. This is a mixt. of pr"m. air flow and process air.

The invention in question refers to a procedure for the production of containers for solid or floating material, which containers are built up from modules. The composite container's casing displays a curved cross section.The procedure, according to the invention, is innovative in that a primary covering layer (1), made of a material with good traction and pressure resistance, is applied to a moul...

The cooling unit for equipment using printed circuit modules supplies a refrigeration medium to serpentine tubes respectively associated with heat exchangers integral with the vertically spaced mounting supporting the printed circuit modules. Each of these heat exchangers includes cooling fins in heat exchange relationship with the serpentine tubes carrying the refrigeration medium and extends alo...

The coupler includes an operating arm attachment device (25) including a pair of spaced parallel shafts (23,24) journalled horizontally on the operating arm stick and operating cylinder respectively. Two link arms (26) are journalled at the shaft ends and are each extended to form a free abutment portion (36). An implement attachment device (20) includes a locking device (11,21) which exerts press...

Arrangement includes a prim. and sec. air flow and an aerodynamic stabiliser. The air flows are controlled and accelerated. - Extruder (1) extrudes plastic film (2). There is a prim. air flow (3) and a sec. air flow (4). The stabiliser (5) has guide surfaces (6). There surround the film but do not come into contact with it. They are skewed inward to cause some of the air to deliver on accelerating...