摘要:
A tear resistant film comprises more than five layers situated one on the other in a parallel array. The layers are individually selected from a stiff polyester or copolyester, a ductile polymeric material, and optionally, an intermediate material. The stiff polyester or copolyester is oriented in at least one direction. Tear resistance may be measured in a Graves area test and reflects the ability of the film to absorb energy. The films of the invention are useful in many articles including security control laminates for glazing members.
摘要:
A camera contains a row of diodes sensitive to infrared radiation and mounted on a turntable for rotation about the optical axis of the camera. The signals from the diodes provide a temperature profile of a band across the width of a strip of hot rolled steel moving in a direction orthogonal to the optical axis and to the length of the row of diodes. Since the diodes are low accuracy devices, their measurements are compensated by normalizing co-efficients derived by comparison with the signal provided by an optical pyrometer viewing the central part of the steel strip in the region of the optical axis. To enable all diodes to be calibrated, calibration is effected with the turntable rotated 90.degree. to align all the diodes with the central part of the strip as viewed by the pyrometer. The camera may be mounted on one arm of a C-frame having X-ray tubes in an arm and X-ray detectors in the other arm for the purpose of measuring the thickness profile of the strip in known way. The compensated temperature measurements can then be used to correct the corresponding thickness measurements to take account of the variation in apparent thickness with density, and hence temperature.
摘要:
An energy providing assembly is powered by a water cooled internal combustion engine suspended within an enclosure by compliant springs and restrained by resilient snubbing means which limits movement of the suspended engine. Generating apparatus for generating mains specification electrical power and/or refrigeration apparatus, including a compressor, for refrigerating a coolant are fixed to and driven by the engine and are accessed by accessible coupling means which include a power outlet and plug-in coolant circuit connections. The refrigeration apparatus is arranged in heat exchange relationship with a coolant circuit associated with the coolant circuit connections whereby a remote fan coil unit may be installed by running conventional hoses to the apparatus and connecting to the coolant circuit connections.
摘要:
A wheelchair with a seat on which a patient can sit, a back rest for the patient when sitting on the seat, and a lifting device for lifting a patient in the wheel chair into a standing position. The lifting device being a jack with manually operable mechanism for extending said jack and a linkage connecting the jack to the seat and to the backrest and including a parallel movement link means. The arrangement being such that on extension of the jack, the seat and back rest will be moved with the back rest carrying out movement in a substantially parallel direction so that the patient will be moved from a sitting position to substantially a standing position.
摘要:
A tear resistant film comprises at least three layers situated one on the other in a parallel array. The layers are individually selected from a stiff polyester or copolyester, a ductile sebacic acid based copolyester, and optionally, an intermediate material. Tear resistance may be measured in a Graves area test and reflects the ability of the film to absorb energy. The films of the invention are useful in many articles including security control laminates for glazing members.
摘要:
The cover member is adapted to receive a fuel-containing cell for a vehicle, such as a stock car racing vehicle, and is configured to cover and fit snugly against substantially all of the surfaces of the fuel cell. The cover member comprises a plurality of layers of penetration-resistant, synthetic material, which is lightweight but high strength, flexible and, to an extent, stretchable, so that in the event of a penetration of the fuel cell by a moving object, such as debris caused by a vehicle crash, material in the vicinity of the penetration is drawn through the opening in the fuel cell with the object, preventing contact of the object and the exposed edges of the opening in the fuel cell.
摘要:
A user/PC interface system is described which enables the creation and performance of a synchronized audio/visual story on the PC. The interface enables the initial storage of a plurality of visual images. Then, it enables the creation of an audio presentation which includes labels and time indications, certain of which are employed for synchronization purposes. The system is responsive to a label to execute a predetermined command upon the appearance of the label in the audio presentation. The PC is then operated to perform the audio presentation, that performance automatically causing the display of visual images upon the occurrence of labels and time indications.An improved, table-based authoring system is also described for preparation of both the above noted audio and visual presentations. The system relies upon columnar presentations of a tabular form, each column indicating a separate control function (or comment) relating to the audio/visual presentation.
摘要:
A user/PC interface system is described which enables the creation and performance of a synchronized audio/visual story on the PC. The interface enables the initial storage of a plurality of visual images. Then, it enables the creation of an audio presentation which includes labels and time indications, certain of which are employed for synchronization purposes. The system is responsive to a label to execute a predetermined command upon the appearance of the label in the audio presentation. The PC is then operated to perform the audio presentation, that performance automatically causing the display of visual images upon the occurrence of labels and time indications. A table-based authoring system is also described for preparation of both the above noted audio and visual presentations. The system relies upon columnar presentations of a tabular form, each column indicating a separate control function (or comment) relating to the audio/visual presentation.
摘要:
A tear resistant film comprises more than five layers situated one on the other in a parallel array. The layers are individually selected from a stiff polyester or copolyester, a ductile polymeric material, and optionally, an intermediate material. The stiff polyester or copolyester is oriented in at least one direction. Tear resistance may be measured in a Graves area test and reflects the ability of the film to absorb energy. The films of the invention are useful in many articles including security control laminates for glazing members.