摘要:
An apparatus and method for detecting, monitoring, measuring and recording the motion of a patient's spine is disclosed. The apparatus includes a vertical member attached to a belt that fits around the patient's waist. A first sensor for detecting and monitoring flexion and extension of the patient's spine in the midsagittal plane is mounted to the lower end of the vertical member. A second sensor for detecting and monitoring lateral bending and movement of the patient's spine in the frontal plane is mounted to the upper end of the vertical member.
摘要:
A wall mounted vertical, gravity fed dispensing container for use with a blister pack includes a pair of perforated sheets defining a holder portion for receiving and supporting the blister pack while holding the blister pack parallel to the wall. The holder portion is formed as a separate element which can be snapped into the container. The two sheets are hinged at the bottom. Behind the holder portion is a catching container fixed to the holder portion and to the wall such that medication expelled from the blisters through the openings by a manually movable punch is caught in the catching container. A bottom wall of the catching container converges the medications to a bottom chute with a manually movable press lever operating a flap valve to discharge the medications into a cup. A front door covers the holder and the blister pack and contains a receptacle for the punch.
摘要:
A composite article and its method of manufacture are disclosed. The composite article includes a matrix formed of a mixture of glass particles and a cured polymer, and a layer of cured polymer material that is substantially free of the glass particles, said layer being formed on at least one surface of the cast article whereby the glass particles are not surface exposed on the at least one surface.
摘要:
An actuator (12) is disclosed for example for controlling gas flow in a gas turbine engine. The actuator (12) comprises a first portion (14) having shape memory properties, and a second portion (16) formed of substantially the same material as the first portion and having reduced shape memory properties relative to the first portion. The first portion (14) is movable from a first position to a second position at a temperature above the phase transition temperature of the shape memory material of the first portion (14). The second portion (16) is arranged to urge the first portion (14) from the second position to the first position at a temperature below the phase transition temperature of the shape memory material.
摘要:
With an active magnetic bearing 1 there is a limit to the available rapidity of response to transient loadings upon a target or rotor 4. Thus, in accordance with the present invention, storage devices 25, 125, 225, 35 hold an electrical voltage VS significantly greater than the normal supply voltage V provided by a normal electrical source 22, 32. In such circumstances when a very large transient loading is detected on the bearing 1 a switch 26, 37 discharges the supply voltage VS across the coil 23, 33 in order that a more rapid increase and higher value inductance current IT is presented to the coil 22, 32 in response to that variable loading upon the target/rotor 24, 34. The electrical discharge from the storage device 25, 125, 225, 35 can be adjusted using the switch 26, 37 or mixing the storage devices 25, 125, 225, 35 as required for an appropriate discharge signal shape. Generally, the active magnetic bearing 21, 31 is controlled by a controller device which monitors target/rotor 24, 34 position in order to determine transient loading and therefore switching of the storage device 25, 125, 225, 35.
摘要:
A nozzle assembly and method is configured to apply coherent jets of coolant in a tangential direction to the grinding wheel in a grinding process, at a desired temperature, pressure and flowrate, to minimize thermal damage in the part being ground. Embodiments of the present invention may be useful when grinding thermally sensitive materials such as gas turbine creep resistant alloys and hardened steels. Flowrate and pressure guidelines are provided to facilitate optimization of the embodiments.
摘要:
A drive apparatus (10) for propelling a vehicle across a body of water is described. The apparatus (10) comprises a prime mover, for example a gas turbine engine (12), and a propelling arrangement (26) driven by the prime mover for propelling the vehicle across the body of water and thereby provide a reaction force on the prime mover. The apparatus (10) also includes a braking arrangement (42) to apply a braking force to the propelling arrangement (26).
摘要:
With an active magnetic bearing 1 there is a limit to the available rapidity of response to transient loadings upon a target or rotor 4. Thus, in accordance with the present invention, storage devices 25, 125, 225, 35 hold an electrical voltage VS significantly greater than the normal supply voltage V provided by a normal electrical source 22, 32. In such circumstances when a very large transient loading is detected on the bearing 1 a switch 26, 37 discharges the supply voltage VS across the coil 23, 33 in order that a more rapid increase and higher value inductance current IT is presented to the coil 22, 32 in response to that variable loading upon the target/rotor 24, 34. The electrical discharge from the storage device 25, 125, 225, 35 can be adjusted using the switch 26, 37 or mixing the storage devices 25, 125, 225, 35 as required for an appropriate discharge signal shape. Generally, the active magnetic bearing 21, 31 is controlled by a controller device which monitors target/rotor 24, 34 position in order to determine transient loading and therefore switching of the storage device 25, 125, 225, 35.
摘要:
A composite article and its method of manufacture are disclosed. The composite article includes a matrix formed of a mixture of glass particles and a cured polymer, and a layer of cured polymer material that is substantially free of the glass particles, said layer being formed on at least one surface of the cast article whereby the glass particles are not surface exposed on the at least one surface.
摘要:
A method for joining components comprises locating a region, such as an end region 24, of a shape memory alloy (SMA) material component 10 adjacent to a further component 12, and generating localised plastic deformation of the aforesaid region to create a joint between the components 10, 12. The localised plastic deformation of the shape memory alloy material component 10 is preferably generated by applying a shock load to the shape memory alloy material component 10.