A hollow filament bundle for use in a separator module is made by rotating two co-axial spiders 24 and 28 and looping a continuous hollow filament which is fed from a package 32 alternately around the arms 26 and 30 of the two spiders. This is done by means of a guide 40 which is reciprocated between the two spiders by a screw threaded shaft 34 which is rotated first in one direction and then the ...

Expendable blades for use in tire buffing machines are disclosed having teeth with an outer edge and outwardly diverging leading and trailing side edges which form sharp prongs with the outer tooth edge for deep attack into the tire carcass; these teeth also having secondary or fine cutting edges comprised by the converging side edges of a cut-out, e.g., circular, in the outer edge of said teeth a...

PURPOSE:To cut a carbon plate with good dimensional accuracy by blowing a cooling medium to a cutting part, irradiating the pulse oscillated laser beam of a specific period thereto to form a cutting streak at a prescribed rate of depth with respect to the plate thickness and cutting the same from the scored part. CONSTITUTION:While air as a cooling medium is blown to the cutting part of a glassy c...

An article for storage and transport of biogenic fluids such as blood, blood fractions, intravenous feeding solutions and liquid phase-delivered drugs is formed of an additive-free uncharged thermoplastic polymer of vinylidene fluoride copolymerized with a monomer.

1392334 Laminated films W R GRACE & CO 28 March 1972 [30 March 1971] 14463/72 Headings B5B and B5N [Also in Division C3] A flexible laminate, suitable for use in heatshrink packaging comprises the following layers in the order given:- (i) a layer comprising an oriented copolymer of ethylene and vinyl acetate containing 5-20% by weight (preferably 8-12%) of units derived from vinyl acetate, the cop...

PURPOSE:To obtain the titled polyester material excellent in the adhesivity with rubber by treating a polyester material with a treating liquid containing an epoxy compound and a melamine based compound before a thermal treatment. CONSTITUTION:A total of 3-50wt% of an epoxy compound (e.g. glycerin diglycidylether) and a melamine based compound (e.g. melamine-formalin resin), 20- 70wt% of a smoothi...