Abstract: A head portion has an open front portion through which a face mask extends. The front portion is elastically biased into engagement with the mask to provide a good seal between the front portion and the face mask. A skirt extends from the lower part of the head portion and flares downwardly and outwardly to overlap the collar of a firefighter coat to provide a good seal with the coat and prevent entry of debris between the skirt and the collar. A flap has one end permanently secured to the head portion and the skirt; and the opposite end of the flap is detachably connected to the head portion. A thermal liner is permanently secured to the head portion and skirt and is spaced from both the topmost part of the head portion and the opposite end of the flap.

Abstract: A method and comb device for detection and removal of human head lice, and eventual elimination of the lice infestation, from infested individuals by sequential combing, with no use of pesticides. The comb device has six sides, three of the sides of the comb having sets of differently sized and spaced teeth so that hair can be detangled, first with the thick, widely spaced teeth on side (1), and then with the standard comb teeth on side (2), and then the thin, closely spaced teeth of the lice removal side (3) can be used to comb out lice. The method also be used to inspect for lice, with the capability of detecting lice at an earlier stage in an infestation than possible with the current, traditional inspection method (visual searching for nits or lice eggs.

Abstract: A membrane dryer apparatus for moist air includes a housing (1) that contains a tubular fabric strand bundle (7) of tubular fabric strands (8) made of selective absorption material through which air to be dried flows, water vapor diffusing through the fabric and collecting on its outside. A portion of the dried compressed output air is channeled off near the discharge (12) of the membrane dryer and passed through a scavenging air duct (14) having a throttle (16) and passed around the outside of the fabric strand bundle to scavenge moisture and remove it through discharge openings (17, 18) to the outside air. To limit consumption of scavenging air, an independent shut-off valve (19), working as an airflow sensor, is installed in the output air duct (13), and this shut-off valve (19) opens only when output air is actually extracted by a user.

Abstract: A seating system having a plurality of seating sections in which the slope of the understructure thereof can be varied, the treads of the seating sections being pivotable to permit the riser height to vary so as to enable a single seating system to provide varying slopes and sight lines depending on the stadium/arena configuration. The treads are pivotable between low riser and high riser positions by the provision of lever arms movable between angular and upright positions and extending between the treads and the beams for supporting the treads in the high riser position on the upper surface of understructure beams. In the low riser position ends of the treads opposite their pivotal ends are supported on an adjacent tread.

Abstract: A platform adaptor for attachment to a support stand for supporting a large object such as a boat at dry dock includes a support beam which is pivotally connected to a center pole of the support stand and two support struts which extend downwardly from the support beam to attachment to two legs of the support stand such that the support beam will be generally horizontally oriented. A platform plank can be positioned on support beams of two platform adaptors attached to two spaced apart support stands to provide a platform for people and equipment located adjacent the supported object.

Abstract: The invention discloses a power unit (1) which comprises: an accumulator battery (2); an electric converter (3) supplied by said accumulator battery (2); an electric motor (30) supplied by said converter (3); a hydraulic pump (4) mechanically connected to said electric motor (30), suited to put under pressure a liquid (50) which supplies one or more actuators (9) in order to lift a load (11) connected to them. Said pump (4) is of the reversible type and operates as a hydraulic motor suited to drive into rotation said electric motor (30) which operates as a generator supplying said battery (2) by means of said converter (3) whenever the descent by gravity of the load (11) supported by said one or more actuators (9) puts under pressure the oil held therein which passes through said pump (4) entering from the delivery opening (42) and coming out of the inlet opening (41).

Abstract: A transport ship (20) having a hull includes a sheathing (22), a weather deck (23, 23') and a hold (28, 28', 30), and having a front part (35), a rear part (25) and a central part (29). The ship is unique in that the front part (35) of the ship includes a hold section (28') defined by the hull and the weather deck (23'), and access hatches provided in the weather deck (23') to give access to the hold section (28'), that the rear part (25) of the ship includes a hold section (28) defined by the hull and the weather deck (23), and access hatches provided in the weather deck (23) to give access to the hold section (28), that the central part (29) of the ship includes a refrigerated hold section (30) defined by an upper thermally insulated refrigerated hold deck (130), a thermally insulated bottom and by thermally insulated walls (132, 133 . . . ) extending in the transverse direction and longitudinal direction of the ship, and in that the weather deck (23, 23') is adapted to support a cargo.

Abstract: A self-adhesive label is formed by incompletely coating a release layer with adhesive which has a greater affinity to the label than to the release layer. The adhesive is transferred to the label and the incomplete coating of the release layer allows the release layer to define a salvage to facilitate removal of the release layer from the label.

Abstract: A ring oscillator comprises a ring of delay stages in which the output of each stage is input to the next stage in the ring. Tuning of the oscillation frequency of the oscillator is achieved by additionally taking outputs from delay stages elsewhere in the ring as one or two secondary inputs to each delay stage and mixing this or these in variable proportions with the primary input.

Abstract: The invention is a cutter-mixer-feeder wagon for fodder and grass or straw silage, comprising at least two rotary screw feeders (7), housed inside a compartment (75) with curved section obtained on the bottom (76) of the container (2) itself, each one provided with at least one pair of spirals (9, 10), on which peripheral cutters (13) are fixed, one of said spirals being wound clockwise (10) and the other anticlockwise (9), starting from the ends of the screw feeder and such as to convey the processed material towards the area where said right and left spirals converge.

Abstract: A device for performing electrochemical and/or optical measurements in fluids, includes a sensor part of substantially planar configuration carrying a plurality of sensors that are connected to conductive paths; a cover part, which includes a groove-shaped measuring channel through which the fluid will flow; and a sealing element positioned between the sensor part and the cover part for sealing the measuring channel. The cover part includes grooves which extend in parallel with the measuring channel and which define respective ridges between the grooves and the measuring channel, and the sealing element substantially includes guiding bodies which are retained in the grooves of the cover part and are provided with integrally molded narrow sealing lips protruding in the area of the ridge. The sensor part and the cover part are joined by a plurality of locking elements which are distributed along the measuring channel.

Abstract: The invention provides, in one aspect, a lubrication system for internal combustion engines of the kind comprising a crankshaft (1) and an associated oil sump (3), a camshaft in a cylinder head above the oil sump, and a timing belt (5) connecting the crankshaft and camshaft via respective, pulleys (2, 4). In accordance with the invention, the timing belt is adapted to entrain a sufficient quantity of oil from the oil sump to lift it to the cylinder head for lubricating purposes, thereby eliminating the need for a separate oil pump. Preferably, an oil pulley (7) is provided below the crankshaft pulley (2) positioned to be immersed in oil within the oil sump for entraining oil therefrom.

Abstract: An installation for fighting fire, having a hydraulic accumulator which has at least one pressure container with a space for extinguishing liquid and a space for propellant gas, a rising tube arranged in the pressure container and provided with a side opening and, at the lower part of the pressure container, a feed opening for feeding extinguishing liquid into the rising tube and further to at least one nozzle. In order to obtain an extremely small drop size of the extinguishing liquid at the final stage of the emptying of the pressure container and in order to manage with a very small amount of extinguishing liquid, the rising tube has a throttle in an area below the uppermost side opening.

Abstract: A lifting scalfold assembly with several scaffolding poles which stand on a base and which are extendable in length and, between which mobile platforms are situated such that they can be adjusted in height, whereby the scaffolding poles are attached to a building by means of holding supports each scaffolding pole includes at least a girder section housing which at least a gear rack on an inside and a gear rack on an outside thereof. On the mobile platforms cogwheels and drives for the cogwheels running on the outer gear racks are provided. A sliding module or carriage includes cogwheels and drives for the cogwheels running on the inner gear connected to the girder section. Conduction rails are included on the scaffolding pole, and current collectors are positioned on the connectable mobile platforms and the sliding modules.

Abstract: An installation for fighting fire in a space which includes a spray head (1a', 2a') of such a type that it is capable of producing extinguishing medium in the form of a finely divided liquid mist with a great penetrating ability and a simultaneous suction near the spray head. To obtain an installation which as regards its construction is simple and with which a fire in a space can be very efficiently extinguished so that the fumes are purified at the same time as the amount of water can be very small, the spray head (1a', 2a", 1b', 2b') is arranged in a pipe (3a', 3b') with a suction opening (67a', 67b') at a distance of 1 to 10 m from the floor level (24) of the room and a spray opening (45a', 45') near the floor level, whereby the spray head is arranged to spray in the direction from the suction opening to the spray opening to create a suction in the suction opening.

Abstract: An apparatus for measuring a fouling resistance and a cleanliness factor of heat-transfer surface and which is capable of continuously and accurately monitoring a build-up degree of deposits on a heat-transfer surface of a heat exchanger includes a fouling sensor having a given length of metal wire wound inside the heat-transfer surface for measuring an average temperature of the heat-transfer surface, a direct current voltage supply member for supplying a voltage to a heating wire of the fouling sensor, an accurate resistance measuring member connected with a temperature measuring metal wire of the fouling sensor for measuring an electrical resistance of the metal wire, an inlet/outlet portion water temperature measuring member for measuring the temperatures of the inlet/outlet portions of the apparatus, a water flow rate measuring member, and a data calculation apparatus for computing a fouling resistance and a cleanliness factor of a heat-transfer surface.

Abstract: A segment for lining cavities, in particular tunnels, includes a substantially shell-shaped body bounded by an inner face, an outer face and side faces, with at least one opening in a side face for the purpose of receiving a dowel. The opening being configured as a substantially cylindrical bore into which projects a tube of limited deformability. A gap being provided between the outer circumference of the tube and the wall of the bore.

Abstract: A probe includes first and second single-mode optical fibers with a semi-reflecting mirror between them. The second optical fiber is tapered by heating and pulling. The semi-reflecting mirror, the tapered portion, and the sample form a Fabry-Perot cavity. The probe can be used in a system having a differential interferometer which provides the appropriate path difference with a mirror on a piezoelectric transducer.