摘要:
Railway traffic signalling light comprising a plurality of light emitting diodes 212 (LEDs) more than sufficient to produce total light emission adequate for intended usage, at least enough of said LEDs being energisable together to be so sufficient, the plurality of LEDs being deployed in an areal array in association with similarly areally distributed emitted light concentrating means 215 effective in conjunction with overall light output delivery provision to produce output light of predominantly substantially parallel directionality. Means for sensing and indicating failure of LED's may be included. Means for modulating light output in accordance with received information and a receiving means for such information may be included.
摘要:
Controlled atmosphere cabinet has enclosure (110; 210) with means providing visibility (110F; 210F) of its interior from outside, gas supply (113-116: 212-216) for desired or target composition of internal atmosphere, controlled lock-type access (112) for manual introduction and removal of items, and hand/arm access port provision (111A, B; 211A, B) for manipulation of said samples in the cabinet. Gas supply associated control means (230-240) serves during use of the cabinet (other than normal atmosphere augmenting in use of the lock-type access) for additional gas supply further to correct or compensate for effects actually or potentially adverse to maintaining the desired or target internal atmosphere composition, via operator-actuated input means (121T, 123; 222) and/or means (122, 124, 139; 225) for sensing prescribed conditions to which the control means is responsive for said additional gas supply.
摘要:
Method and apparatus for forming and packaging pad-like articles (10) of resilient compressible foam having one dimension (thickness) smaller than its other two dimensions. The pad-like articles are successively fed into an entry to a compression mechanism (20) having an interior space (21) in which each article is turned on itself to compress it in the one dimension (thickness-upon-thickness) by movement of bounding surfaces (22) of the interior space. The compressed pad-like articles (10c) are then pushed from the compression mechanism transversely to said movement of bounding surfaces of the interior space and a containing wrapping applied.
摘要:
A transdermal applicator for attachment to the skin having at least one drug reservoir containing at least one drug, and having an electrical connection formed at a surface interface between said reservoir upon contact with said skin; means for causing said at least one drug to move through said interface transdermally and for maintaining said transdermal movement for an extended time period. The means for causing and maintaining transdermal movement including a source of varying electrical potential, said source having one terminal electrically connected to said at least one reservoir at a location away from said skin surface interface and an other terminal in circuit with said skin surface at a location away from said reservoir/skin surface interface. The electrical circuit is formed upon application to the skin of the device, and said circuit connecting from said one source terminal through said at least one reservoir, through said reservoir/skin surface interface, within said skin to said skin surface connected in circuit to said other source terminal, wherein the drug is delivered through said skin when electrical current flows in a first direction in the circuit. The varying electrical potential is the resultant combination by at least one of superposition and selection of a plurality of electrical signals, and the electrical source including at least one of means for storing data representative of said resultant and means for generating the plurality of signals, and means for selecting and superposing the signals in selected time relationships for application to the source terminals.
摘要:
L'invention se rapporte à un dispositif d'affichage à cristaux liquides à mode inverse avec obturateur de lumière, qui est transparent hors-champ et non transparent sur-champ (c'est-à-dire avec pouvoir de diffusion et/ou d'aborption). Le mode en phase inverse est obtenu par modification de l'énergie de surface du polymère qui renferme les gouttelettes de cristaux liquides (10) via la réaction d'un agent tensio-actif, incorporé à l'intérieur des gouttelettes de cristaux liquides pendant la formation des gouttelettes, dans la couche polymère interne. On obtient l'état hors-champ transparent en phase inverse en faisant correspondre l'indice de réfraction moyen (-No) des gouttelettes des cristaux liquides à l'état électrique hors-champ (E) avec l'indice de réfraction (Np) des matériaux polymères contenant les gouttelettes et en rendant appropriées la taille et la forme des gouttelettes et l'énergie de surface du polymère, pour amener le grand axe (Ne) de la molécule des cristaux liquides à s'orienter perpendiculairement à la surface du substrat. La couche de surface interne effectue l'alignement des molécules de cristaux liquides de façon homéotrope dans un produit en microcapsules multicouche composite résultant avec un matériau homogène pour l'enveloppe des capsules. Une force compressive, obtenue par exemple par séchage rapide ou par l'application d'une pression externe, est utilisée pour rendre correcte la forme des gouttelettes et l'alignement homéotrope qui en résulte.
摘要:
Un appareil de test de la croissance bactérienne comprend au moins un bloc thermoconducteur (10) pourvu d'orifices débouchants (12) de réception d'une pluralité de cellules de test (50) entourées par le matériau dudit bloc (10) à une température appropriée. Les cellules de test (50) sont généralement tubulaires et s'étendent depuis des connecteurs électriques détachables (52, 60) sur une face du bloc jusqu'à l'autre face du bloc, sur laquelle elles font saillie, et où lesdites cellules (50) sont pourvues d'une pluralité de couvercles (70) qui assurent une décharge automatique de la pression. Des dispositifs électroniques de surveillance et de visualisation (150-154) traitent des signaux en fonction du courant électrique appliqué aux électrodes (54) sur les cellules (50) et en fonction de l'activité bactérienne du contenu desdites cellules (50). Les dispositifs de surveillance et de visualisation (150-154) sont capables de desservir un ou plusieurs de ces blocs (10) et leurs cellules de test associées (50), selon un principe d'extension modulaire au moyen de connexions (160, 162) établies entre les blocs.
摘要:
An internal wrench (40) for earth drilling machine (10) of the type having a mast (12), a top head drive assembly (14) mounted for movement a!ong the mast (12) and a quill (24) rotated by the top head drive assembly (14) includes a body (42) having an upper end (44) and a lower end (46) sized to fit within a length of casing (26). The upper end (44) of the body (42) is mounted to the quill (24) for rotation with the quill (24) and several jaws (60) are mounted to the lower end (46) of the body (42) to move between an extended position in which the jaws (60) engage in interior surface (30) of the casing (26) to rotate the casing (30) with the body (42), and a retracted position in which the jaws (60) are out of engagement with the interior surface (30). The jaws (60) are selectively moved between the extended and rectracted positions in response to rotation of the body (42) by a system (66-86) which includes s drag ring (93) which operates the jaws (60) and a friction brake, (96) which engages the drag ring (93). A plug (54) is mounted to an intermediate portion of the body (42) to mate with threads at the upper end of the casing (26) to seal off the casing. Followers (100) on selected jaws (60) automatically retract the jaws (60) when the body (42) is lowered into the casing (26) to mate the plug (54) with the threads at the upper end of the casing (26).
摘要:
An emergency lighting supervisory system monitors utility power so as to automatically connect emergency lights to a battery source when utility power fails. The system continuously monitors selected parameters and, automatically, periodically tests the system under simulated full-load emergency conditions and annunciates the results of these tests. Such periodic tests also enhance the battery capacity. The system also provides a closed loop three-mode battery charging control circuit. It can optionally communicate its status as well as receive commands from an external computer or other source by means of a data communication interface.
摘要:
A food product for a desired ultimate dish includes a divided main ingredient such as meat coated with dry particulate additional ingredients such as flavouring, thickening etc. agents. Preparation includes admixing (14) the main and additional ingredients supplied at prescribed rates (10, 12) with the main ingredient offering surface adherence for the additional ingredients, and the final product remains divided. The desired ultimate dish is prepared in any required quantity simply by heating up the divided final product in a suitable cooking medium.