摘要:
A solar heat collecting apparatus of the kind which comprises a plurality of parallel ducts, through which a heat transport agent circulates. The object of the invention is to provide a solar heat collecting apparatus which is composed of conventional components, which is not expensive to manufacture, which does not have any leakage problems and which has a very large heat collecting surface. These objects have been solved by the fact that the ducts (16) are made of a bottom corrugated plate (11), the upper surface of which is reflective, and an upper transparent plate (13) formed with the same corrugations, the wave troughs (14) of which are located to fit-up against the wave-crests (15) of the bottom plate. In the ducts (16) is accommodated a light- and heat-absorbing tube (18), which at least at both ends of the ducts at the transition between one duct to the adjacent duct is formed as a corrugated or screw-line shaped tube.
摘要:
A sealing device intended for changing the inner volume of a container, such as containers or packages for chemicals, drugs, etc, and pressure chambers for breathing apparatuses, comprising a base plate (1) and an upper plate (2) which are made of a rigid material, and an expansion means (3) provided between the base plate (1) and the upper plate (2). Two pressure means (5,b) which are formed as levers and which can be manually actuated are pivotly provided at a support (6) fixedly connected with the central part of the upper plate (2), which support projects through a recess (12) in the base plate (1). A resilient means (9) is provided between the pressure means (5a,b) to make an axial displacement of the plates (1, 2) in relation to each other possible. The expansion means has the form of an elastic seal (3) which is provided in a groove (13) formed in the edge (11) of the base plate (1), which seal when the plates (1,2) are approaching each other is pressed together and expands radially for contact with the wall of the container.
摘要:
An arrangement for a closed system for transferring a liquid from a vessel to a collection container (6) which are attachable to each other via a coupling member (17) with a two sided cannula (2). One end of the collection container (6) is closed by a seal (7) which can be penetrated by the cannula (2). Behind the seal inside the container is a plunger (8) with an axial penetrating canal to which a tube (9) is attached. At the tube end away from the plunger (8) an openable stopper (11) is attached. By axial motion of the plunger (8) in the collection container (6) away from the seal reduced pressure is achieved in the container for sucking up the liquid through the cannula (2). After opening the stopper (11) the liquid can be forced out into the tube (9) by axial motion of the plunger toward the seal (7).
摘要:
Un dispositif pour collecter des échantillons de liquide dans un passage de liquide, par ex. sur des vases collecteurs d'urine, comporte une vanne creuse (1) disposée dans le passage de liquide (3) et tournante entre deux positions, une position de collecte dans laquelle elle collecte le liquide dans un espace (8, 10), et une position d'écoulement dans laquelle elle ouvre un passage (9, 15, 16) pour l'écoulement du liquide à travers la vanne (1). Cette dernière est pourvue d'une ouverture d'accès obturée par un organe obturateur (14) pour prélever les échantillons de liquide.
摘要:
A tube clamp comprising a clamp housing (1) through which the tube (11) extends, a clamping member (9) and a press plate (5) arranged between the tube and the clamping member. The press plate (5) is connected to the clamp housing (1) in such a way that it will be displaced towards and away from the tube when actuated by the clamping member. The clamping member may consist of a roller (9) with axle necks (8a,8b) which are guided in inclined grooves (4) in the clamp housing. The press plate (5) has a substantially U-shaped cross-section with side gables (7a,7b), on the upper edges of which the clamping member (9) is arranged to act and which side gables are guided against the inside of the clamp housing so that the press plate (5) is displaced towards and away from the clamp surface of the clamp housing when actuated by the clamping member (9).
摘要:
An arrangement for a closed system for transferring a liquid from a vessel to a collection container (6) which are attachable to each other via a coupling member (17) with a two sided cannula (2). One end of the collection container (6) is closed by a seal (7) which can be penetrated by the cannula (2). Behind the seal inside the container is a plunger (8) with an axial penetrating canal to which a tube (9) is attached. At the tube end away from the plunger (8) an openable stopper (11) is attached. By axial motion of the plunger (8) in the collection container (6) away from the seal reduced pressure is achieved in the container for sucking up the liquid through the cannula (2). After opening the stopper (11) the liquid can be forced out into the tube (9) by axial motion of the plunger toward the seal (7).
摘要:
A suction nozzle which when being stopped up automatically delimits the suction force in the suction opening (2) to a certain predetermined value independently of the negative pressure in the suction conduit (1, 12). The suction nozzle comprises a sleeve member (3) arranged at the front end of the suction conduit (1, 12) and which forms the suction opening (2) of the device. The sleeve member (3) is by a resilient member (4) held in a first position, suction position, in which it covers side passages (5.6;15) to the suction conduit (1) and in which suction is performed through the suction opening (2). If the pressure difference immediately inside and outside the suction opening (2) exceeds a certain value, e.g. if the suction opening is stopped up, the sleeve member (3) is against the action of the resilient member (4) automatically displaced to a second position in which said side passages (5,6;15) to the suction conduit are opened, thereby reducing the suction force in the suction opening (2).
摘要:
A pneumatic control unit (5) for a breathing apparatus for administration of breathing gas in for example surgical operations, in which breathing apparatus the breathing gases from a patient are instantaneously stored in an elastic breathing bag (8), the breathing gas being continuously supplemented with an addition of for example oxygen and anaesthetic gas from an administration device. The bag (8) is provided in an rigid container or a pressure chamber (2), the inner space (2a) of which being adjustable in relation to its volume. The control unit (5) is provided to control the insufflation pressure in the pressure chamber (2) intermittently and via an injector (6). In the control unit (5) a first and a second main valve (16, 17) are provided to cooperate via a first and a second volume (19, 20) and via adjustable throttle valves (18c, 18d) affect the inspiration phase and the expiration phase.
摘要:
Device for absorption of carbon dioxide in a breathing apparatus and including a hose (1) for the breathing air. The hose (1) is at least partly filled with an absorption mass (4) including a carbon dioxide absorbing stuff (6) in granular form (5) which is mixed with a spacing substance (6) being of such character that it offers the breathing air a relatively low resistance. Alternatively the absorption mass (4) is in the shape of a porous framework with a plurality of granules (5) which are in pont contact with each other.
摘要:
Dispositif pour collecter et mesurer l'urine d'un patient et comportant un récipient de mesure transparent rigide (1) divisé en plusieurs chambre graduées voisines (2, 3, 4), qui sont ouvertes au sommet l'une vers l'autre et comportent des ouvertures de sortie inférieures (16, 17, 18) connectées par un dispositif de vanne (19) à une sortie (15) à laquelle est connecté un récipient de collecte, par exemple un sac à urine. Une entrée (5) est connectée à la première chambre (2) et un trop-plein (20) connecté à la sortie (15) est connecté après la dernière chambre (4). Afin de rendre la fabrication du récipient de mesure aussi simple que possible et de réduire autant que possible le nombre de ces parties, tout en veillant à une répartition régulière du poids lors du remplissage du récipient, la première chambre (2) est disposée centralement dans le récipient de mesure (1) et comporte des trop-pleins (8, 9) disposés à différentes hauteurs vers la deuxième et la troisième chambres (3, 4) situées des deux côtés et s'étendant chacune par une partie (13, 14) derrière la première chambre (2). Les ouvertures de sortie (17, 18) provenant de la deuxième et de la troisième chambres (3, 4) sont situées l'une derrière l'autre des deux côtés de la paroi de séparation (14) entre elles et derrière l'ouverture de sortie (16) de la première chambre (2).