A magnetic core containing amorphous metal, suitable for use with electrical inductive apparatus, such as transformers, and methods of constructing such a magnetic core. The desired physical dimensions of the magnetic core are maintained, without adversely stressing the core, by a composite, conformal coating applied to the core edges. The composite coating includes a rigid high strength outer str...

An absorbent structure is provided, which is comprised of a fibrous web, having an initial dry bulk of at least about 20 cc/gm., a dry bulk recovery of at least about 30 percent, and a wet bulk of at least about 30 cc/gm., and a basis weight less than about 4 oz/sq. yd. containing at least about 200 percent by weight superabsorbent. The structure is microcorrugated to provide a softness having a T...

A lubricating oil composition for a refrigerator using therein 1,1,1,2-tetrafluoroethane as the refrigerant, comprising as the base oil a polyoxyalkylene glycol monoether of the following general formula R1 @O R2 @@ O H wherein R1 is an alkyl group having 1-18 carbon atoms, m is an integer of 5-70, R2 is an alkylene group having 2-4 carbon atoms and a ratio of 0-0.8 between (the number of - OR2 -...

PCT No. PCT/EP89/00360 Sec. 371 Date Sep. 26, 1990 Sec. 102(e) Date Sep. 26, 1990 PCT Filed Apr. 3, 1989 PCT Pub. No. WO89/09674 PCT Pub. Date Oct. 19, 1989.The device disclosed comprises a high-pressure autoclave in which a moulded blank of the sample is heated by means of laser beams to the melting point and then rapidly cooled. The sample is maintained in a processing position (2) in an autocla...

A parking brake actuator and adjuster mechanism 24 is mounted on a caliper (10) of a disc brake assembly and comprises a housing 32 with bores 34, 36 - bore 34 receives an adjusting nut 42 and an adjusting screw 58 threadingly engaging threaded bore 44 in nut 42. Nut 42 has ratchet teeth 47 engaged by adjusting leg 70 of a pivotally mounted pawl 66 while a tracking arm 68 of pawl 66 engages groove...

A plastic film seaming apparatus in the form of a gas fired rotary plastic film welding device for joining the edges of plastic film by applying heat and pressure to overlapped edges of plastic films with the heat and pressure being applied to the plastic film by a rotatably driven pressure roller system and heat being applied to the plastic film by a gas burner assembly so that the apparatus can ...

A plastic film seaming apparatus in the form of a gas fired rotary plastic film welding device for joining the edges of plastic film by applying heat and pressure to overlapped edges of plastic films with the heat and pressure being applied to the plastic film by a rotatably driven pressure roller system and heat being applied to the plastic film by a gas burner assembly so that the apparatus can ...

The invention concerns the plugging of underground formations. The plugging agent used is aluminum hydroxychloride with hexamethylene tetramine, or a weak-base activator such as urea. The invention has applicants in the treatment of oil wells and the traversed formations.