Abstract: Fibres which are useful in wound dressings comprising an alginate co-spun with at least one water soluble organic polymeric species (other than an alginate). Examples of such fibers comprise alginate and CMC.

Abstract: A tool block and holder for metal working lathes, comprising, a tool block having a tool channel extending therethrough sized to receive snugly a collet holder with a collar at its proximate end serving as a stop against the tool block, and first coolant channel that communicates a fluid coolant from a source external to the tool block to the tool channel at a point beyond the distal end of the collet holder; a collet sized to be received snugly within the collet holder and having a hollow interior and a nose at its proximate end with an opening sized to receive the shank of a metal working tool and having male threads at its distal end; and a draw nut having a proximate end sized to be received snugly within the tool channel, female threads at its proximate end sized to receive the male threads at the distal end of the collet, a flange at the distal end of the draw nut serving as a stop against the tool block, and second coolant channel in fluid communication with the first coolant channel and the hollow int

Abstract: Electrochromic and photoelectrochromic devices using nanocrystalline semiconductor electrodes with a high specific surface area and surface-absorbed electrochromic molecules are disclosed.

Abstract: An ophthalmic mounting for bifocal lenses includes a pair of rims on which a pair of right and left bifocal lenses are mounted. The rims are symmetrically arranged with respect to a vertical axis. The ophthalmic mounting includes a pair of pad arms connected to the rims, and a pair of nose pads detachably secured to the pad arms and oriented to diverge downwardly from the vertical axis. The nose pads includes a pair of generally flat bodies, a pair of guides integrally formed in the bodies and having a pair of elongated guide recesses, and a pair of slides. The slides have a pair of sliding portions slidably received within the respective guide recesses, and a pair of mounting portions connected to the respective sliding portions and detachably secured to the pad arms. The guide recesses lie on two substantially parallel imaginary vertical planes, respectively so as to enable the slides to be smoothly moved along the guide recesses.

Abstract: Plane sheets which have the same shape as the magnetic circuit and are relatively movable along their contact surface are arranged in a stack. The stack is grasped and part of the circuit is bent out of alignment with the plane of the sheets to enable a coil to be placed on a portion of the circuit which is next to the air gap, whereafter said part is bent back into alignment with said sheets.

Abstract: An electrode wire (20) is withdrawn from a pay-off spool (22), passed around guide rolls (24-30) to a machining span (32), and finally wound up on a take-up spool (40). The electrode wire (20) is guided in such a way that it always moves in the same plane at right angles to the axes, both when being wound up on the take-up spool (40) and when being unwound from the pay-off spool (22). Both spools (22, 40) are supported on a common carrier member (50) which is displaceable in axial direction of the spools (22, 40). A measuring device (70) is disposed between the pay-off spool (22) and the first guide roll (24) to detect deviations of the position of the electrode wire (20) from a predetermined position. The carrier member (50) is connected to a slide drive (60) which corrects any deviation detected of the position of the electrode wire (20) being unwound from the pay-off spool (22) by axially shifting the carrier member (50).