摘要:
An application and inspection system comprises an application system for applying sealing compound to an edge region of a can end (1). The application system includes means for rotating the can end and application means (5) relative to each other to as to apply sealing compound to an edge region of the can end. An inspection system (7) is provided for determining the integrity of the sealing compound applied to the can end. The inspection system includes means for directing a source (9, 11, 13) of radiation towards an edge region of the can end as the can end rotates relative to the inspection system. The inspection system also includes means for detecting radiation originating from the radiation source and reflected from the can end. The source of radiation is directed at the can end at a location upstream of a location at which the sealing compound is applied.
摘要:
A synchronous alternating current generator incorporates a braking mechanism which comprises a coil (21) providing a predetermined inductance and a predetermined resistance, and switch means (22) for connecting the coil across an output of the generator.
摘要:
A device for treating a lesion in a body lumen to enlarge a passageway in a body lumen comprising a cutting member (20, 120, 120', 130, 130') having a proximal portion and a distal portion (23, 222, 132) and a tracking member (30, 140) having a proximal portion and a distal portion (142). The cutting member and tracking member are connected at their distal portions and insertable into the body lumen as a unit, the cutting member configured for movement in a direction transverse to a longitudinal axis of the tracking member to widen a gap between the cutting member and tracking member at least at a distal region.
摘要:
A thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel comprises a wire (60, 160, 160', 560, 660, 722, 722') having a first configuration and a second deployed configuration when exposed from a sheath (40, 40', 140, 240, 540, 709), the wire having a straighter configuration in the first configuration. The wire is operatively connected to a motor (410) for rotation of the wire to contact and break up the thrombus or other obstructive material. A blocking device (70, 170, 200, 300, 570, 670, 710, 710') is provided at a distal portion of the apparatus, the blocking device movable between a collapsed configuration and an expanded configuration. In the expanded configuration, the blocking device is configured to block thrombus dislodged by rotation of the wire.
摘要:
Urethane acrylate oligomers, suitable for use in coatings and like formulations, prepared by capping polyols having hydroxyl functionality (fOH) equal to or greater than 4, using 2-isocyanatoethyl acrylate or 2-isocyanatoethyl methacrylate, thereby avoiding the gelation that normally occurs in attempting to prepare urethane acrylates with high/OH polyols by reaction with diisocyanates. Reaction of low molecular weight polyols, containing two or three hydroxyl groups, with mono isocyanate(meth)acrylate monomers produces useful, low viscosity urethane (meth)acrylate oligomers. Specifically, capping of a mole of 2,2-dihydroxymethyl butanoic acid by two moles of 2-isocyanatoethyl acrylate molecules leads to the formation of radiation curable water-soluble liquid monomers that are transparent and soluble in water. Oligomers obtained by capping with 2-isocyanatoethyl acrylate demonstrate enhanced adhesion to glass and stainless steel. Solid, hydroxyl-containing chemicals can be transformed to liquids by reaction with monoisocyanate- (meth)acrylate monomers
摘要:
A flood defence door assembly comprises an upper door leaf (1) adapted to be hinged to a frame (7), and a lower door leaf (3). The lower door leaf (3) is adapted to be hinged to the frame (7) so as to open outwardly of a building, the lower door leaf being provided with laterally and downwardly extending sealing means (5) for sealing between the door leaf and the frame when the door leaf is in a closed configuration.
摘要:
A fall arrest device comprises a body (1) defining a path through the body for the passage of a track (3). A cam (21) is provided within the body for engaging with the track so as to control movement of the device relative to the track, and an arm (7) is provided for pivoting the cam within the body so as to move the cam towards and away from the track. The arm includes a first part (9) attached to the cam and a second part (11) for attachment to a user, the second part being pivotably connected to the first part. The body (1) is provided with an outwardly extending projection (13) which is dimensioned to contact the second part (11) of the arm over part of its movement.
摘要:
A filter comprises first and second housing components (1, 3) slidable relative to each other and defining a filter chamber therewithin. An inlet (7) for a fluid to be filtered is provided in at least one of the first and second housing components, and a filter element (11, 13) is provided within the filter chamber. The filter element is adapted to provide a space (15) between the inlet and the filter element for the accumulation of solid material in the fluid to be filtered, whereby sliding movement between the first and second housing components causes the volume of the filter chamber to vary.