A process for the treatment of a soft contact lens, to increase its resistance to the deposition thereon and diffusion and accumulation therein of substances which will promote its clouding and discoloration in use, and to improve its mechanical strength, includes treating a hydroxyl group-containing acrylic ester soft contact lens or replica with an organic acid anhydride for a sufficient period ...

PCT No. PCT/AT83/00009 Sec. 371 Date Dec. 16, 1983 Sec. 102(e) Date Dec. 16, 1983 PCT Filed Apr. 15, 1983 PCT Pub. No. WO83/03534 PCT Pub. Date Oct. 27, 1983.In the diagnostic evaluation of the measurement of head rotations for the functional examination of the cervical portion of the spine and the upper dorsal column it is to be noted that the head rotates not only with reference to that axial sy...

PCT No. PCT/EP84/00233 Sec. 371 Date Apr. 1, 1985 Sec. 102(e) Date Apr. 1, 1985 PCT Filed Aug. 3, 1984 PCT Pub. No. WO85/00841 PCT Pub. Date Feb. 28, 1985.A paper machine where the press section features exclusively double felt roll presses (13-16; 23-26) through which proceeds the paper web (10) to be dehydrated between two felt belts (15,16; 25, 26). The paper web (10) is constantly supported by...

PCT No. PCT/SE80/00163 Sec. 371 Date Feb. 11, 1981 Sec. 102(e) Date Feb. 9, 1981 PCT Filed Jun. 10, 1980 PCT Pub. No. WO80/02855 PCT Pub. Date Dec. 24, 1980.In an inverted siphon (4) in a sewer (1, 1a) where the approaching flow of sewage is insufficient for producing self-rinsing, a fluid reservoir (5) is arranged upstream of the inverted siphon which has sufficient volume for effecting rinsing, ...

Electronic device for the energization of an electromagnetic element, particularly a troke-coil or a coil of an electromagnetic switching apparatus having a magnetic circuit with a coil, a yoke and an armature. A comparator (5) receives a predetermined current order value U(Iu) and an actual measured current value U (Iu). Then the actual value goes down below the order value, the com...

Aerator for aerating air in a liquid (12) in a treatment vessel (7) comprising a motor (1) driving a propeller (4) a Venturi nozzle (2) being placed right behind the propeller (4). When the propeller (4) rotates, an air flow will take place through the Venturi nozzle (2), and this flow will sweep along air from an air hose, said air aerating said liquid efficiently by means of the propeller (4). M...

A method for the treatment of glaucoma or lowering intraocular pressure in a mammal, involving topically administering to the eye of such mammal a selectively metabolized beta-blocking compound of the formula wherein R may be lower alkyl, lower hydroxyalkyl, lower alkynyl, aralkyl, or an ester-containing group and Ar may be substituted or unsubstituted aromatic; or a pharmaceutically acc...

PCT No. PCT/SU84/00076 Sec. 371 Date Oct. 24, 1985 Sec. 102(e) Date Oct. 24, 1985 PCT Filed Dec. 28, 1984 PCT Pub. No. WO85/03963 PCT Pub. Date Sep. 12, 1985.A reversible air-operated percussive action machine for driving holes in the ground has a housing accommodating a hammer 2 capable of reciprocating therein. An air distributor 3 is arranged in the hammer 2 in the form of a fixed tube 12 and a...

PCT No. PCT/FI83/00013 Sec. 371 Date Sep. 13, 1984 Sec. 102(e) Date Sep. 13, 1984 PCT Filed Feb. 17, 1983 PCT Pub. No. WO84/03240 PCT Pub. Date Aug. 30, 1984.Compound film containing polyolefin. Such a compound film comprises at least one polyolefin layer having good adhesiveness to polymers containing polar radicals. In order to make the adhesive polyolefin layer such that the adhesive layer cont...

A centrifugal clutch, in particular a centrifugal powder clutch, comprising a housing and a rotor mounted for rotation in said housing. The rotor has at least one circumferential groove, each wall of which is provided with a passage that is at an angle different from 90 DEG to the median plane of the rotor, thereby to promote circulation of the powder when the clutch slips.

An apparatus which comprises at least one abrasive rubbing element mounted on a retractable support extending over all the width of the roll face. The abrasive rubbing element is applied with a predetermined pressure against the roll face during operation.

An apparatus for the continuous polishing of a pressure roller in a coiling machine, comprising at least one abrasive rubbing element which extends parallel to the axis of rotation of and over the entire length of the face of the roller, the abrasive rubbing element being mounted on a longitudinal support displaceable with respect to the roller parallel to the axis of rotation of the latter, the l...

An improved treatment for reinforcing silica uses both a silazane represented by the formula (RR'R''Si)2NH and bis-Si-(1-methyl-1-silacyclopentenyl) amine as filler treatment. The filler treatment may be done either in situ during the manufacture of curable silicone elastomer compositions or as a separate operation. The treatment allows production of an easily extrudable composition with improved ...