baber/WOPTO huggingface dataset:
Patent GB-1412007-A (GB)
Title: Process for preparing polyolefin pulp for paper-making
IPC: D01D5/11
Filed: 1972-10-10
Abstract: 1412007 Polyolefin pulp CROWN ZELLERBACH INTERNATIONAL Inc 10 Oct 1972 [12 Oct 1971 14 Feb 1972] 46699/72 Heading B5B [Also in Division D2] Synthetic polymer pulp for use in paper making having a drainage factor greater than 1À0 secs./gram. and a compressibility constant N between 0À3 and 0À4 and comprising a mass of discrete, water dispersible polyolefin fibres whose size is such that less than 10% by weight are retained on a 20 mesh Tyler screen and at least 25% by weight are retained on a 65 mesh Tyler screen is made by forming a mixture of a polyolefin, a solvent which will dissolve the polyolefin at elevated temperatures and water, in which the water to solvent volume ratio is up to 2 : 1 and the amount of polyolefin is 0À5 to 15% by weight of the solvent, heating the mixture above the melt dissolution temperature of the polyolefin in the solvent but below 160 C. to establish an autogeneous pressure of not more than 20 kg./cm.<SP>2</SP>, expanding the mixture from autogeneous pressure through a nozzle into a zone of lower pressure to flash evaporate the solvent, collecting the resultant aqueous slurry of polyolefin fibres and refining the aqueous pulp to disentangle the fibres. The mixture preferably includes a polymeric non- foaming surface active agent (e.g. polyvinyl alcohol) in an amount of 0À1 to 5% by weight of the polyolefin to render the resultant fibres water dispersible. The pulp may be prepared by mixing and pressurizing the above ingredients in a jacketed autoclave equipped with a stirrer (Fig. 1, not shown) and ejecting the mixture via a nozzle and conduit 7 into a vapourization chamber 8 equipped with conduit 9 for removal for vaporized solvent, conduit 10 leading to a disc refiner 11 and water spray 12 which inhibits aglomeration of the fibres and facilitates the refining treatment. Examples relate to the preparation of fibrous pulps from aqueous mixtures containing polyethylene, polypropylene or polypropylene and polystyrene dissolved in hexane and including polyvinyl alcohol or gelatine and a non-ionic surface active agent; 4-methyl-1-pentene homopolymer dissolved in benzene and polyethylene/calcium carbonate mixture dispersed in hexane.
Patent GB-1397146-A (GB)
Title: 6-p-formylamino-phenyl-4,5-dihydropyridazone-3-and pharma ceutical preparations containing it
IPC: A61K31/50
Filed: 1972-10-11
Abstract: 1397146 6-(P-Formylaminophenyl)-4,5-dihydropyridazone (3) and phramaceutical preparations containing them BADISCHE ANILIN- & SODA-FABRIK AG 11 Oct 1972 [12 Oct 1971] 46841/72 Heading C2C The invention comprises 6-(p-formylaminophenyl)-4,5-dihydropyridazone-(3). This compound may be obtained by formylating 6-(paminophenyl)-4,5-dihydropyridazone-(3) prepared by the reaction of #-(p-aminobenzoyl)- propionic acid and hydrazine. The intermediate #-(p-formylaminobenzoyl). propionic acid is obtained by reacting #-(paminobenzoyl)-propionic acid with formic acid. The invention also comprises a pharmaceutical composition having cardiovascular activity containing the compound of the invention as active ingredient with a pharmaceutically acceptable diluent, carrier or other excipient.
Patent GB-1165152-A (GB)
Title: Roof Support Assembly suitable for use in a Mine
Inventor: GRIFFITHS AUBREY MASON
IPC: E21D23/04
Filed: 1965-11-09
Abstract: 1,165,152. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. 21 Dec., 1966 [9 Nov., 1965], No. 47448/65. Heading E1P. In an advancing mine roof support assembly comprising two frames 1, 4 arranged in parallel the frames are interconnected by arms 7, 9 which are pivoted to one another at 11 and to the frames at 8, 10 thereby allowing relative advancement of the frames. More than one pair of such arms may be provided interconnecting the respective floor skids and/or roof bars. The arms may be resilient or resiliently connected to the frames.
Patent GB-1062147-A (GB)
Title: Adhered strip of full-headed nails
IPC: F16B15/08
Filed: 1965-11-09
Abstract: 1,062,147. Packaging nails in strips. SIGNODE CORPORATION. Nov. 9, 1965 [Dec. 14, 1964], No. 47463/65. Heading B8C. A row of parallel full-headed nails is joined by one or more tapes (9) (Fig. 2, not shown) which engage the shanks of the nails tangentially. The nails may be staggered (Fig. 1, not shown) or arranged with the heads in a common plane (Fig. 3, not shown). Tapes may be applied at one side only, or at opposite sides, and each tape may consist of paper coated with a heatresponsive adhesive for engagement with the nails while they are hot. The row of nails may be rolled into spiral form (Fig. 5, not shown).
Patent GB-1445683-A (GB)
Title: Electrical switches
IPC: H01H13/02
Filed: 1972-10-14
Abstract: 1445683 Retractive switches CAV Ltd 2 Oct 1973 [14 Oct 1972] 47511/72 Heading H1N In an electric switch a central extension 22, Fig. 1 of the actuator 21 carries a movable bridging contact 35 in alternative grooves 32 33 whereby the contact 35 may be assembled in groove 33 for normally closed operation (shown) or in groove 32 for normally open operation. Spring 36 urges the contact 35 towards the fixed contacts 17 and spring 37 urges the actuator 21 to its outer position. The actuator 21 Fig. 1 has a snap-fit connection to the switch body 10, as by a pair of forwardly extending lugs 25 on the actuator 21 engaged over projections 28, apertures 27 in the lugs permitting limited relative movement in guideways 26 for actuation. Ramp faces 29, 30 may be arranged on the projection 28 and lugs respectively whereby the assembly and removal of the actuator 21 is facilitated.
Patent GB-1402165-A (GB)
Title: Blood transport membrane pump
IPC: A61M60/205
Filed: 1972-10-16
Abstract: 1402165 Blood dialysis and oxygenation R C BRUMFIELD 16 Oct 1972 [20 Oct 1971] 47609/72 Heading B1X [Also in Division F1] A pump for transporting and treating blood comprises a cylindrical rotor shell 34 eccentrically disposed within a cylindrical stator casing 23 and covered with a permeable membrane 40. The rotor rotates in the direction 77, pumping blood from an inlet 80 to an outlet 86. A secondary fluid, either for oxygenation or dialysis o,f the blood, is conducted through longitudinal passages 36 in the rotor periphery, diffusive interchange between this fluid and the blood occurring through the permeable membrane 40. The secondary fluid passes to the passageways 36 from a stationary conduit 18 via-a gland 14, the hollow interior of the rotor shaft 11, apertures 67, radial passages 66 in a disc 62 and a groove 68, and returns to a stationary conduit 19 in a similar fashion. The blood is maintained at the required temperature by a heating fluid circulated through a cylindrical jacket 82 via an inlet 89 and an outlet 90. The blood inlet 80 communicates with the interior of the stator casing 23 via a manifold 81 and conduits 83 which traverse the heating jacket 82, the blood outlet 86 being simularly provided with a manifold 87 and conduits 88. The rotor shell 34, the membrane 40 and rings 41, 42 which retain the membrane in place form a disposable unit which is secured to the rotor by removable end discs 44, 45 attached by bolts 46-49 to discs 62, 63 which are welded to the shaft 11 and are provided with seal rings 93, 94, 99, 100. A seal ring 50 provided with an O-ring 103 is pressed against the end disc 44 by springs 60 supported by a ring 54 which is retained by a circlip 56, a guide pin 58 being provided for each spring. A similar sealing arrangement is provided at the other end of the rotor. The stator -casing 23 may have an internal coating of polyurethane.
Patent GB-1397603-A (GB)
Title: Continuous casting apparatus
IPC: B22D11/128
Filed: 1972-05-08
Abstract: 1397603 Continuous casting USS ENGS & CONSULTANTS Inc 8 May 1972 [13 May 1971] 47643/74 Divided out of 1397602 Heading B3F The description is that of the main embodiment of the parent invention. The claims are directed to the open-ended mould (13) and its support frame (12) carried by means (14) on the structure 10 for oscillating vertically the frame and mould, and to the means (rollers 49, 50) on the frame (12) cooperating with the roll rack (15, 16) carried beneath the mould (13) by the structure (10), for maintaining the rack in alignment with the mould as it moves up and down; and also to the locating means for the upper end (15) of the roll rack, such as the pins (21) of the structure (10), which allow limited horizontal movement of the rack.
Patent GB-1380471-A (GB)
Title: Hatch covers and ventilating system
IPC: B63J2/08
Filed: 1972-10-17
Abstract: 1380471 Twin hatch covers N V LASKEY 17 Oct 1972 47702/72 Heading B7S [Also in Division F4] A pair of hatch covers are disposed transversely one each over twin hatch openings 12 of a common hold of ship 5, one hatch cover 13B being slidable under the other when the other cover 13A is raised to an elevated position. Each of the hatch openings has a coaming 14 above deck level and longitudinal, 16, 17, and transverse, 52, reinforcing structure surrounds each opening below deck level. The longitudinal reinforcing structure 17 under the midship longitudinal sides of the coamings is common to the adjacent midship sides 13C, 13D of the coamings. Each hatch cover has a seal to engage its coaming. High lift hydraulic jacks 23 elevate hatch cover 13A and low lift jacks 24 elevate cover 13B a sufficient distance to break the seal with its coaming so that cover 13B can be moved transversely on rails 45 to its position'under the elevated cover 13A, thus uncovering one of the twin hatch openings. The two hatch covers can also be moved together in pickaback fashion to uncover the other of the twin hatch openings. In the embodiment shown the midships longitudinal reinforcing structure 17 is a ventilating trunk with openings to the interior of each hold.
Patent GB-1433700-A (GB)
Title: Process for the production of non-woven fabrics capable of reversible moisture absorption
IPC: D04H1/4258
Filed: 1974-11-05
Abstract: 1433700 Hydrophilic non-woven fabric BAYER AG 5 Nov 1974 [7 Nov 1973] 47765/ 74 Headings DIP, D1R and D2B A bonded non-woven fabric is rendered hydrophilic by impregnation with a solution comprising a polymer produced by the polymerisation of acrylic acid or methacrylic acid in the presence of polyethylene oxide, then drying the fabric and crosslinking the polymer by the action of heat. The polyethylene oxide is a water-soluble polymer of molecular weight 90 to 20000 containing 0 to 30% of propylene oxide or other alkylene oxide. The oxide chains may start with a specified alcohol, amine or carboxylic acid. The products are leather substitutes and may be given a polyurethane coating. If they are equilibrated with air at 20‹C, 65% relative humidity and then left for 24 hrs at 85% R.H. it absorbs up to 15% by weight of water vapour. The polymerisation is performed at 20 to 180‹C by the addition of an aqueous MeOH, EtOH or PrOH solution of acrylic acid and/or methacrylic acid and, optionally, other vinyl monomers, plus a peroxide to initiate radical polymerisation. The other vinyl monomers, which comprise 0 to 40% of the monomer total may be acrylamide, methacrylamide, N- methylol acrylamide or methacrylamide and their methyl ethers, hydroxy alkyl acrylates or methacrylates, acrylonitrile, vinyl sulphonic acid, acryloyl taurine, methacryloyl taurine, vinyl acetate, vinyl formate, allyl alcohol, maleic acid, maleic anhydride, monomethyl maleinate, dimethyl fumarate, maleimide and hydroxy methyl maleimide. The polymer comprises 10 to 75% of polyvinyl compound. The polymer solution may contain 0.1 to 10%, based on the solids content of a cross-linking agent selected from hexomethylol melamine pentamethyl ether, urea-, phenol- or melamineformaldehyde condensates, bisoxazolines, masked polyisocyanates and polyisonitriles. Crosslinking is achieved by heating the impregnated fabric to 60 to 200‹C. The fibres are polyamide, polyester, polyolefin, polyacrylonitrile, rayon, wool or a blend thereof, they may be continuous or of staple length and may include shrinkable fibres. They are carded, cross-laid and needled to form a dry-laid fabric or wet-laid from an aqueous suspension of fibres. The fabric is bound by immersion in an aqueous dispersion of styrenebutadiene rubber or acrylonitrile butadiene rubber with subsequent coagulation washing, drying and vulcanisation, or by coagulating a polyurethane. The final product contains 24-34% by weight of the hydrophillic polymer.
Patent GB-1393736-A (GB)
Title: Joining tubes to plates involving friction welding
IPC: B23K20/12
Filed: 1972-10-19
Abstract: 1393736 Welding by pressure and fusion CLARKE CHAPMAN Ltd 17 Aug 1973 [19 Oct 1972] 48156/72 Heading B3R In joining a metal tube to a metal plate one end of a metal stub which may be hollow or solid is friction welded to an annular region of the plate surrounding a pilot hole through the plate, metal is then removed from the plate and the stub and subsequently the tube is welded to the free end of the stub, said removal of metal including removal of metal from the exterior of the stub so as to remove friction welding flash and to form a curved surface adjacent the junction of the stub and plate and removal of metal from the wall of the pilot hole and from the stub to remove internal welding flash and to produce a uniform passage through the plate and stub. In an embodiment a tubular stub 10, Fig. 1A, is rotationally friction welded to a plate 12 provided with a pilot hole 14 used to position a mandrel for maintaining the position of the stub during rotation. An unwanted length of the stub is removed and weld flash 16, Fig. 1B, is removed externally by machining the outside of the stub to reduce the stub thickness, remove external flash and form a curved surface 18, Fig. 1C. Metal is also removed from the pilot hole 14 and from the bore of the stub to produce a finished bore 19 of uniform diameter in both stub and plate. The tube is butted to the stub 10 and welded internally using a TIG arc torch inserted through the plate. A layer of material, e.g. mild carbon steel or Inconel or Inco (Registered Trade Marks) capable of controlling the weld pool composition may be orbitally friction welded, plasma sprayed or plated on the stub end prior to the arc welding. After the tube welding the arc welded joint is heat treated. In a modification the stub 30, Fig. 3A, may have a frusto-conical end 31 friction welded to a corresponding surface 33 on the plate 32. Solid bodies, otherwise similar to those shown in Fig. 1A and 3A may be used, being bored after friction welding, and that corresponding to stub 10 may carry a temporarily attached spigot journalled in the pilot hole in the plate. The outer machining may extend below the plate surface to produce a trough having a curved surface. The plate may be of low alloy or stabilized chromium steel of austenitic steel, of Incolloy or Inconel (Registered Trade Marks) or of titanium alloy and the stub and tube may be of Incolloy, Inconel, low carbon or chromium niobium stabilized steel.
Patent GB-1369726-A (GB)
Title: Data storage circuit
IPC: H03K17/62
Filed: 1972-10-19
Abstract: 1369726 Bi-stable transistor circuits INTERNATIONAL BUSINESS MACHINES CORP 19 Oct 1972 [11 Nov 1971] 48169/72 Heading H3T Each multiemitter bi-stable cell 1 of a matrix uses low power during standby. Standby power from 7 through R7A is increased to operating level by T9 in response to a word drive signal 10. A second word line ("bottom line") 12 is also raised in potential when the cell is selected, to reverse bias emitters e2, e3 of which one is normally conductive according to the stored state. The transistors 2, 3 can then conduct through emitters e1, e4, to bit lines 20, 21 via switch preamplifier transistors 24, 25, which are turned on by decode signals 31, 31A. The decode signals for the matrix are derived by simple inverter circuits (Figs. 3, 4, not shown). A read-write switch 48 turns on either write driver transistors 40, 41 when it is desired to write data, or else read gate transistors 37, 38 when it is desired to read at 39A the stored data on bit lines 20, 21. When write driver transistors 40, 41 are operative, data received at 56 is fed in non-inverted form by means of T55, T57 to T41, and in inverted form by means of T60, T58 to T40. The resulting levels on bit lines 20, 21 reset the bi-stable cell 1.
Patent GB-1067818-A (GB)
Title: Process for the preparation of silica gels
IPC: B01J20/10
Filed: 1965-11-12
Abstract: A modified silica gel is prepared by contacting a particulate silica hydrogel with an aqueous solution of a quaternary ammonium halide of formula RR13NA wherein R is alkenyl or hydroxyalkenyl having 8-24 C atoms, each R1, which may be the same or different, is alkenyl or hydroxy-alkenyl having 8-24 C atoms, alkyl having less than 5 C atoms, or aralkyl, and X is halide; draining excess liquid from the gel and heating at 110 DEG  to 250 DEG  C. until the gel contains 5-15% H2O.  The concentration of the above compound is sufficient to improve the decrepitation resistance of the SiO2 (e.g. above 0.25%), but is below 2%.  Specified compounds are soya trimethyl ammonium chloride, tallow dimethyl benzyl ammonium chloride, and other quaternary ammonium halides derived from unsaturated fatty acids. The gel may be prewashed with, e.g. H2SO4 to remove salts.
Patent GB-1359539-A (GB)
Title: Electric heating device
IPC: B29C45/27
Filed: 1971-10-18
Abstract: 1359539 Resistance heater PYROTENAX Ltd 17 Oct 1972 [18 Oct 1971] 48367/71 Heading H5H [Also in Division B3] A (twin conductor) mineral insulated sheathed cable 11, 31, Figs. 1 and 3 respectively, acts as a male thread when secured in either the core 1, 21 or sleeve 8, 28 or a heated roll having momting holes 3, Fig. 1, or an injection nozzle, Fig. 3, the sleeve and the core being screwed together so that there is good thermal contact between the cable and the core and/or the sleeve. The core and/or the sleeve are made of high thermal conductive material, e.g. mild steel. The cable is welded in the groove adjacent its ends to effect the securing and has a sealed termination 12, 32 at one end and a sealing pot 13, 33 at the other. Alternatively a double groove may be formed and a looped cable used to form a double thread. Two cables of different sizes may also be used to provide two elements. By selecting suitable conductive materials for sleeve and core the radial directions of heat flow may be adjusted. The cable sheath may be stainless steel.
Patent GB-483768-A (GB)
Abstract: 483,768. Directive wireless signalling. RADIO TRANSMISSION EQUIPMENT, Ltd., and BAILEY, C. E. G. Feb. 11, 1937, No. 4137. [Class 40 (v)] In a radio-navigational system of the overlapping- beam type, the deflection of the needle of a visual indicator is maintained or prolonged for the duration of a predominating signal, whether " dot " or " dash," and the sense of the deflection is made dependent on the sign of each successive pair of signals. As shown in Fig. 1, the signal is passed through a rectifier 14, 15 and a delay circuit 16, 17 to a valve 18, the anode of which feeds the magnet winding 19 of a central-zero meter. The moving coil 21 of the latter is fed directly from the secondary winding 13 of the input transformer 11. Fig. 2 shows the sequence of variations I . . . IV due to the receipt of a " dot," the curve V representing the resultant torque on the moving coil 21 and VI the prolongation of the needle., deflections. The receipt of a " dash " similarly produces a prolonged deflection in the opposite direction.
Patent GB-1478550-A (GB)
Title: Dye developers and light-sensitive materials for diffusion-transfer containing these developers
IPC: G03C8/10
Filed: 1974-11-08
Abstract: 1478550 Substituted di-aromatic compounds FUJI PHOTO FILM CO Ltd 8 Nov 1974 [8 Nov 1973] 48519/74 Heading C2C [Also in Divisions C4 and G2] 2,5 - Dimethoxy - 3<SP>1</SP> - nitrobenzophenone (I) is prepared from p-dimethoxybenzene and mnitrobenzoyl chloride, in the presence of AlCl 3 . 2,5 - Dimethoxy - 3<SP>1</SP>- aminobenzhydrol (II) is prepared by the hydrogen atom of (I) using Pd/C under pressure. 1,4 - Dimethoxy - 2 - (3<SP>1</SP> - aminobenzyl)benzene (III) is prepared from (II) by treatment with zinc in aqueous HCl. 2 - (3<SP>1</SP>- Aminobenzyl)hydroquinone (IV) is prepared from (III) by treating with 46% aqueous HBr.
Patent GB-1523190-A (GB)
Title: Appliance for separation of the components of samples
IPC: B04B5/04
Filed: 1976-11-22
Abstract: 1523190 Centrifugal separators COMPUR-WERK GmbH & CO 22 Nov 1976 [26 Nov 1975 6 July 1976] 48566/76 Heading B2P A centrifuge for separating the components of test samples, e.g. of blood, comprises a plate-like rotor 10 provided with recesses 10r extending radially of the axis of rotation of the rotor, sample-containing tubular vessels 18, e.g. capillary tubes, adapted to be received in the recesses 10r, resilient buffer means 14 inserted between the outer end of each vessel and a counter bearing surface on the rotor, and a clamping piece 16 displaceable axially on the hub 10a of the rotor, the inner ends of the vessels 18 bearing on an abutment surface of the clamping piece 16 in such a way that each vessel is radially shifted, pressed against the buffer means 14 and thereby clamped when the clamping piece is displaced axially in one direction. Each buffer means 14 is inserted in an opening 10f and bears against the flanged outer rim 10b of the rotor 10. The inner ends of the vessels 18 are received in slots 16r in the clamping piece 16. Abutment faces 10b, 10h and 10i, 16i on the rotor and clamping piece define two limiting positions of the clamping piece relative to the rotor, a first position as shown in Fig. 3 for insertion of the vessel 18 and a second position, Fig. 1 (not shown), for clamping of the vessel after axial displacement of the clamping piece. In a modification, Figs. 4 to 9 (not shown), the clamping piece has associated with it a return spring (120) which biasses it to the first position, the clamping piece further carrying a pivotal lever having a locking surface which cooperates with a corresponding surface on the rotor and holds the clamping piece in the second position against the spring force. A reading scale 10s for measuring the relative proportions of the separated components of the sample is provided along each receiving recess 10r in the rotor.
Patent GB-1373544-A (GB)
Title: Derivatives of alpha-methyl-benzyl-amine
IPC: A61K31/135
Filed: 1971-10-21
Abstract: 1373544 3-Chloro-4-cyclohexyl-α-methyl-benzylamines FUVEAU SA 21 Oct 1971 [28 Oct 1970 15 July 1971] 48903/71 Heading C2C Novel 3-chloro-4-cyclohexyl-α-methyl-benzylamines of the general formula wherein X is a hydrogen or halogen atom or a cyano or -NR 1 R 2  group, in which R 1  and R 2  are each a hydrogen atom or C 1-4  alkyl group or NR 1 R 2  is a C 5  or C 6  heterocyclic group optionally containing a second heteroatom, and n is 1-3 or, when X is a hydrogen atom, O, and pharmaceutically acceptable acid addition salts thereof are prepared (a) by reaction of 3-chloro-4- cyclohexyl-α-methyl-benzyl chloride with ammonia or an amine of the general formula X(CH 2 ) n NH 2 , (b) when n is 1 and X is a hydrogen atom, by reaction of 3-chloro-4-cyclohexylacetophenone with methylamine in the presence of hydrogen and a hydrogenation catalyst, (c) when n is 0, by reaction of 3-chloro-4-cyclohexylacetophenone with ammonium formate, followed by hydrolysis with hydrochloric acid and (d) when n is 2 and X is a cyano group, by reaction of the product of (c) with acrylonitrile, followed optionally by salification of the product. 3-Chloro-4-cyclohexyl-α-methyl-benzyl chloride is prepared by reduction of 3-chloro-4-cyclohexyl-acetophenone with sodium borohydride and chlorination of the resulting 3-chloro-4- cyclohexyl-α-methyl-benzyl alcohol. Pharmaceutical compositions having antiinflammatory and analgesic activity comprise, as active ingredient, at least one 3-chloro-4- cyclohexyl-α-methyl-benzylamine of the first general formula above or pharmaceutically acceptable acid addition salt thereof, in association with a pharmaceutical medium suitable for oral or parenteral administration.