baber/WOPTO huggingface dataset:
Patent GB-1182573-A (GB)
Title: Castable Siloxane Block Copolymers
IPC: C08G77/44
Filed: 1968-06-26
Abstract: 1,182,573. Castable siloxane block copolymers. DOW CORNING CORP. 26 June, 1968 [24 July, 1967], No. 30431/68. Heading C3T. A castable siloxane block copolymer consists essentially of (A) 50 to 95 mol per cent of blocks of siloxane units of the average unit formula R n SiO 4-n,  in which each R is a methyl, vinyl or 2 phenyl radical and n has an average value from 1À90 to 2À0, the blocks containing at least 90 mol per cent (CH 3 ) 2 SiO units and having an average of 100 to 1000 siloxane units per block, and (B) 5 to 50 mol per cent of blocks of siloxane units of the average unit formula in which m has an average value of 0-5 to 2.00; there are preferably > 3 units per block. The copolymer may be made by mixing in an organic solvent, e.g. toluene or xylene, a HO-terminated siloxane having an average unit formula R n SiO 4-n/2,  and an ethylpolysilicate having from   30 to 75% (wt.) ethoxy radicals, heating the mixture in the presence of potassium acetate or carbonate for 0.5 to 10 hours at 60 C. to the reflux temp., the catalyst being used in amount of 1 molecule per 500 to 5000 Si atoms. The inorganic salts are usually filtered from the solution and the solvent removed, if desired, by conventional means. The copolymers can be cured to rubbers by exposure to moisture in the presence of silanol-alkoxy condensation catalysts, e.g. organic titanates and zirconates, organotin carboxylates, amines and Ti salts. In a typical Example (1), an ethylpolysilicate (67% wt. of ethoxy radicals), a HO-terminated dimethylpolysiloxane (317 Si atoms), toluene, and K acetate, were refluxed for 5 hrs., cooled, carbonated with solid CO 2  and filtered through diatomaceous earth to yield, after removal of solvent, the desired block copolymer, a portion of which was mixed with dibutyltin dilaurate and n-hexylamine, moulded and allowed to cure at room temp. Uses: for coating paper, fabric and electrical articles; and for moulding elastomeric products and encasing electrical products.
Patent GB-417900-A (GB)
Title: A waiters' tray improvement
IPC: A47G23/06
Filed: 1933-11-02
Abstract: 417,900. Trays and waiters. SANDLAND, R., Old Grey Mare Hotel, Clifton, Yorkshire. Nov. 2, 1933, No. 30449. [Class 128.] A waiters' tray is provided with a fixed or detachable frame D containing an absorbent material C such as sponge rubber having a ribbed surface upon which the bottoms of glasses containing beverage are wiped before serving. The frame D may be made of metal or hard rubber and is secured to the rim B of the tray by clips E and a distance piece F, or a moulding may be used fitting over the edge of the tray. A space L between the absorbent and the frame is provided to allow the liquid to drain into the tray. Advertising matter may be attached to the frame.
Patent GB-334097-A (GB)
Title: Ditching machine
IPC: E02F3/06
Filed: 1929-10-08
Abstract: 334,097. Hanneborg, A. Oct. 8, 1929. Rotary scrapers.-In a ditching-machine where. in a cutting screw or screws is or are carried, together with the driving gear, by a frame adapted to be raised or lowered by screw-means, the screw-means is driven from the gearing by which the cutting-screw is rotated. ' The frame 1 of the apparatus is connected to a tractor by beams 2 and an adjustable stay 4 and is adjustably connected by a screw 14 and nut 13 to a cross-bar 11 suspended by springs 10 from a wheeled frame 8. The drive for the ditching- screw 7 is conveyed from the tractor through a coupling 16 and bevel gears 18, 19; loose gears 21, 22 are oppositely driven by the bevel gear 19 and either gear may be connected to their shaft 23 by a clutch 25 controlled by a handle 27, the shaft 23 driving the screw 14 through gearing 28, 29 so as to raise or lower the ditching-screw. The screw 14 may also be driven by a handle detachably engaging the end 30 of the shaft 23. Between the beams 2 and the tractor are provided means causing disengagement when the resistance exceeds a given limit.
Patent GB-409374-A (GB)
Title: Improvements in or relating to record-controlled statistical printing machines
Filed: 1932-10-31
Abstract: 409,374. Statistical machines. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. Oct. 31, 1932, No. 30594. Convention date, Dec. 24, 1931. [Class 106 (i).] The invention relates to record - controlled statistical printing machines of the kind in which the perforated records are read in motion and in which type carriers are reciprocated past a printing line in synchronism with the card reading and are arrested when card holes are read so that the appropriate type is positioned at the printing-line ; the typecarriers being subsequently restored. In a machine of this type and in which the reading occupies the major portion (e.g. 10/14ths) of the machine cycle, the invention consists in providing gearing whereby some or all of the mechanisms of the machine are driven at a constant velocity during the card reading portion of the cycle and at a decreasing and then increasing velocity during the rest of the machine cycle. The object is to increase the speed of the card reading and the type-carrier setting without increasing the speed of restoration of the type-carriers. In known machines these carriers are set at one rate and returned at a faster rate. In the present invention the type-carriers are moved at substantially the same speed in each direction. The invention is applied to the kind of machine described in Specification 247,200, [Class 106 (i)], having vertically reciprocated type bars which are arrested differentially by electromagnetically released pawls when the holes are read. The type bars are reciprocated by a groove 23, in a cam 21 which rotates once per card cycle, which groove is so designed that the bars are raised during half a card cycle and then lowered during the second half cycle. The bars being thus raised during ¢, instead of 10 /14ths, of a card cycle, the card feed mechanism 33, 34, 36, 40, 41, 42 is driven faster by non-circular gear wheels 51, 52, actuated through the train 44, 48, 47, 46, 45 from the machine motor, whereby the cards are read at a fast though steady speed. The wheels 51, 52 have the same number of teeth and half of the wheel 52 (in angular measurement) is circular, whereas 10/14ths of the wheel 51 is circular. The reading mechanism will thus complete 10/14ths of its complete cycle whilst the printing mechanism, driven through train 52, 49, 50, 22, 21, 23, completes of its cycle. During the remainder of the cycle the card feed first slows down and then accelerates so as to complete a full cycle in the same time as the full cycle of the printing mechanism. It is possible to drive the printing mechanism through the gears 51, 52, or similar gearing, but the above arrangement is preferred.
Patent GB-1096034-A (GB)
Title: Improvements in or relating to sorption traps
Inventor: WIENECKE BRUNO
IPC: B01D53/04
Filed: 1965-07-19
Abstract: 1,096,034. Vapour trap. VEB. HOCHVAKUUM DRESDEN. July 19, 1965, No. 30597/ 65. Heading B1L. A trap for the absorption of vapours and gases comprises a housing (1) containing a metal tube (5) externally coated with a solid solvent which can be regenerated by heating and subsequent cooling, said tube having electrical connections (7, and indirectly, 8) to facilitate resistance heating and connections for admission of a fluid cooling medium. The numerals refer to Fig. 1 (not shown) which shows a tube in the form of a coil: and to Fig. 2 which illustrates a U-shaped tube with coated plate elements disposed thereon. The coating may be applied by sprinkling a mixture cf sorbent and adhesive additive thereon and subsequently sintering, or by electrophoretic deposition. Specified sorbents are silica gel, alumina and zeolites and the apparatus may be placed between an oil diffusion pump and a receiver to remove oil vapours.
Patent GB-1471196-A (GB)
Title: Fluid film thickness sensor
IPC: G01B7/06
Filed: 1974-07-10
Abstract: 1471196 Measuring fluid film thickness electrically ADDRESSOGRAPH MULTIGRAPH CORP 10 July 1974 [6 Aug 1973] 30644/74 Headings G1N and G1M [ Also in Division G3] The thickness t of a film of fluid, e.g. ink, is determined by measuring the sliding shear force A and the splitting shear force T and obtaining the quotient <SP>A</SP>/ T  which is shown to be inversely proportional to t<SP>2</SP>. As shown (Fig. 1) for use in a lithographic printing machine, the ink is transferred from a pool to a vibrator roll 10 which is in contact with a sensing roll 12, rotatably supported for limited vertical movement by leaf-springs 15, and for limited horizontal movement by leaf-springs 17. Rotary movement of roll 10 produces a corresponding vertical displacement of the roll 12 proportional to the splitting shear force T of the ink at the nip between the rolls, and is measured by strain gauges 21 on strips 15: axial reciprocating movement of roll 10 produces corresponding horizontal displacements of the roll 12 proportional to the sliding shear force A of the ink and is  measured by strain gauges 21 on strips 17. The strain gauges are connected into appropriate circuitry to develop signals representing T and A and the quotient A/T determined Fig. 4 (not shown). The output signal may be used in a retroactive loop to control the thickness of the ink film.
Patent GB-1011320-A (GB)
Title: Organosilicon compounds and process for their preparation
IPC: C08G77/16
Filed: 1964-08-04
Abstract: Siloxanes of the average general formula <FORM:1011320/C3/1> or <FORM:1011320/C3/2> wherein R and R1 are hydrocarbon or substituted hydrocarbon radicals and a and b each have a value of from 1 to 20, can be made by reacting a siloxane of the formula <FORM:1011320/C3/3> wherein X is a halogen atom (some of the X atoms may be replaced by -OSO3H groups), x, y and z have values of from 1.5 to 2.1, 0.5 to 1.2 and 0.001 to 1.2, respectively, and 4>(x+2y+2z)>2, with ammonia and/or a primary or secondary amine to yield a polymer comprising siloxanes linked by Si-N-Si groups and terminated by <FORM:1011320/C3/4> groups, which is then hydrolysed to yield the desired siloxane. The reaction is preferably effected in an inert solvent and the hydrolysis is preferably effected in an acid medium. Examples are given, the product of (1) being used in organic solvent solution together with zirconium and/or titanium butoxide for impregnating leather.  Uses.-As de-foaming agents for aqueous-alcohol systems; for impregnating textiles, paper and leather for imparting hydrophobic and adhesive properties thereto; and in making polyurethane foams.ALSO:Certain hydroxy-terminated siloxanes (see Division C3) are used for impregnating leather, textiles and paper for imparting hydrophobic and adhesive properties thereto.  A methylene chloride solution of the siloxane of Example 1, in conjunction with zirconium butoxide and/or titanium butoxide, is used as an impregnating agent for leather.
Patent GB-470095-A (GB)
Title: Physiologically active preparations and the manufacturing thereof
IPC: A61K38/22
Filed: 1935-11-06
Abstract: Preparations which inhibit sex functions are obtained from the urine of sexually immature members of the same sex.  The active substances are precipitated with the protein content of the urine if protein precipitants are added thereto and can be removed from the precipitate by water or aqueous liquids.  Examples describe the treatment of urine of juvenile females: (1) by concentration, precipitation with alcohol and extraction of the precipitate with water; (2) by treatment with active charcoal and extraction of the charcoal with water; (3) by precipitation with acetone saturated with benzoic acid, treatment of the precipitate with ether, and shaking of the ethereal solution with water into which the hormone passes.
Patent GB-1424076-A (GB)
Title: Metal-binding agents and their use in removing heavy metals  from fluids
IPC: C02F1/52
Filed: 1973-06-28
Abstract: The composition is prepared by reacting carbon disulphide with a resin which in its molecular structure contains imino and/or amino groups. Said resin is a urea resin, a thiourea resin, a melamine resin, an aniline resin, a urethane resin, a polyamide resin, a hydrazide condensation product or a reaction product of an amino compound with polyvinyl chloride, polyvinylidene chloride, polyvinyl bromide, polyvinylidene bromide, poly(1-chloro-1-bromoethylene), poly(1-chloro-1-fluoroethylene), chlorinated polyethylene, chlorinated polypropylene or a copolymer of vinyl chloride, vinylidene chloride, vinyl bromide, vinylidene bromide, 1-chloro-1-bromoethylene or 1-chloro-1-fluoroethylene with acrylonitrile, vinyl acetate, acrylic acid, methacrylic acid, methyl methacrylate, methyl acrylate, ethyl acrylate or butyl acrylate. The composition can be used to remove heavy-metal ions from solutions or gases. To this end, the composition is brought into contact with the solution containing heavy-metal ions or the gas containing heavy-metal ions. Examples of such heavy-metal ions are ions of mercury, lead, chromium, cadmium, arsenic, copper and iron.
Patent GB-319962-A (GB)
Title: Improvements in pressing and stretching devices for neckties
IPC: A47G25/78
Filed: 1928-10-25
Abstract: 319,962. Livsey, H. Oct. 25, 1928. Trouser and other garment presses and stretchers. - A necktie press comprises a pair of tapered members pressed together by a clamp &c., one of the members being inserted in the tie to act in addition as a stretcher. In the form shown, members a, b are tapered towards one end, are curved transversely, and are pressed together by a screw clamp c, d. The tie is pulled over the member b which is then inserted in the clamp member c, In another form, the members a, b are flat and the former is offset and provided with lateral projections fitting in slots in upstanding members on the latter. Several ties may be simultaneously pressed by providing intermediate tapered members similar in outline to the members a, b.
Patent GB-956280-A (GB)
Title: Improvements in or relating to bunkers or hoppers for the storage and delivery of slurry-like materials
Inventor: SWORD JOHN NICHOLSON
IPC: B65G65/00
Filed: 1960-09-07
Abstract: 956,280. Storage bunkers discharged by trimming. NIAGARA ENGINEERING CO. Ltd. Dec. 5, 1961 [Sept. 7, 1960], No. 30887/60. Heading B8E. A bunker for slurries consists of a fixed base 1 supported, e.g. on a plinth 2, above ground and a vertically movable wall or walls 6 surrounding the base and carrying at the top means movable vertically with the walls and operative to remove the contents of the bunker from above and deliver it, e.g. to a take away conveyer 15. The means to raise and lower the walls may be the rack-and-pinion shown at 16, 17 or hydraulic rams. The contents of the bunker are removed by the lower run 10 of a scraper conveyer 9 whose scrapers are sufficiently spaced to allow loading of the bunker through the spaces between them. The inevitable gap between the walls and the base allows excess liquid component of a slurry to drain away.
Patent GB-1414008-A (GB)
Title: Mining machine
IPC: E21D9/10
Filed: 1973-06-29
Abstract: 1414008 Mining machines VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE-ALPINE MONTAN AG 29 June 1973 [30 June 1972] 31054/73 Heading E1F A mining machine of the type in which cutting tools 4 are mounted on driving shafts 3 on the end of a jib arm 1, has overload protection in the form of a torque limiting clutch 5 mounted between each shaft 3 and cutting tool 4. A slip clutch arrangement is employed in which split rings 7, 9 bear against tool and shaft under the influence of wedge elements 10, 11 acted on by screws 12.
Patent GB-948831-A (GB)
Title: A process for the preparation of chlorothiolformates
IPC: C07C327/00
Filed: 1961-08-29
Abstract: The invention comprises a process for the production of chlorothiolformates in which an alkyl, cycloalkyl, C2-5 alkenyl, aryl, alkaryl, aralkyl, haloaryl, haloaralkyl or carboalkoxy-alkyl mercaptan or HS(CH2)nSH, where n is 3,4 or 5, is reacted with phosgene in the presence of finely divide activated carbon; and, per se, the compounds ClCOS(CH2)n SCOCI where n is 3,4 or 5, and RSCOCl, where R is C5-11 alkyl, C14 alkyl, cycloalkyl, C2-5 alkenyl, aryl (other than phenyl), alkaryl, aralkyl, haloalkyl, haloaralkyl or carboalkoxyalkyl.  The carbon catalyst may be activated by heating with chlorine, steam, CO2 or H2SO4. Examples prepare compounds RSCOCl in which R is:  (1) methyl, (2) ethyl (3) n-propyl, (4) isopropyl, (5) n-butyl, (6) secbutyl, (7) isobutyl, (8) n-pentyl, (9) n-hexyl, (10) n-heptyl, (11) and (12) n-octyl, (13) n-decyl, (14) n-dodecyl, (15) n-tetradecyl, (16) phenyl, (17) o-tolyl, (18) m-tolyl, (19) p-tolyl, (20) p-chlorophenyl, (21) 2-naphthyl, (22) benzyl, (23) p-chlorobenzyl, (24) 2-phenylethyl, (25) cyclohexyl (29) allyl, (30) carboethoxymethyl, (31) 2-ethylhexyl, and (32) t-butyl; and compounds CICOS(CH2)nSCOCl in which n is 3-5  The following are obtained by reaction of the appropriate chlorothiolformate and amine: isopropyl di-n-propylthiolcarbamate, sec-butyl di-n-propylthiolcarbamate, phenyl dimethylthiolcarbamate, cyclohexyl di-n-propylthiolcarbamate and t-butyl di-n-propylthiolcarbamate. These and certain of the chlorothiolformates produced in the process of the invention are pesticides (see Division A5).ALSO:Pesticidal compositions, e.g. fumigants, mildew eradicants, herbicides, rust-control agents and compositions for use against mites, house flies, nematocides and fungi, comprise certain chlorothiolformates or di-N-substituted thiolcarbamate esters derived from them (see Division 32) in solution in solvents such as diesel oil or paint thinner, or in the form of emulsifiable concentrates containing emulsifiers such as polyoxyalkylene derivatives of hexitol anhydride partial long-chain fatty acid esters.  Specified active ingredients are those of the formula RSCOCl, where R is methyl, ethyl, n-propyl, n-butyl, isobutyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, o-tolyl, m-tolyl, p-tolyl, p-chlorophenyl, 2-naphthyl, benzyl, p-chlorobenzyl, 2-phenylethyl, allyl, carboethoxymethyl and 2-ethylhexyl; the compounds ClCOS(CH2)nSCOCl, where n is 3, 4 and 5; and the compounds RSCON(R1)2, where (a) R is isopropyl, R1 is n-propyl; (b) R is sec-butyl, R1 is n-propyl; (c) R is phenyl, R1 is methyl; (d) R is cyclohexyl, R1 is n-propyl; and (e) R is t-butyl, R1 is n-propyl. Specified forms are emulsifiable concentrates and aqueous emulsions.
Patent GB-1513666-A (GB)
Title: Battery separators
IPC: H01M50/494
Filed: 1975-07-25
Abstract: 1513666 Laminates CARL FREUDENBERG 25 July 1975 [10 Aug 1974] 31103/75 Heading B5N [Also in Division H1] A battery separator comprises an array of rectilinear filaments disposed between two superposed sheets of thermoplastic fibres, in which the sheets are spot fused together so that the filaments are unbonded, and in which the spot-fused area is from 2 to 40% of the total area of the separator. Preferably the fibres are corded and the corded web is passed between a heated embossed roll and a resilient roll. In the example 0À4 mm diameter monofilament polyester filaments were introduced at 0À5 cm intervals between 2 polyester fibre fleeces and the fleeces laminated together by spot fusing in rows between the filaments which produced 0À1 to 0À2 mm high ridges in the separator. The fibres may be polypropylene, polyethylene, polyester, nylon bb, nylon b, polycarbonate or mixtures thereof and may comprise or include heterofibres. The separator has a thickness of 0À05 to 1 mm. Fibres lengths and deniers and separator absorbency and tear strengths are specified. The separators may be used in sulphuric acid and alkaline storage batteries and in tubular batteries. The ribs may extend out of the electrolyte thus allowing gases to escape along the channels formed by the ribs, the separator and the electrodes.
Patent GB-535955-A (GB)
Title: Improvements in testing arrangements for fluid control valves
IPC: F16K37/00
Filed: 1939-12-01
Abstract: 535,955. Valves. BRITISH THOMSONHOUSTON CO., Ltd. Dec. 1, 1939, No. 31225. Convention date, Dec. 1, 1938. [Class 135] A testing arrangement for a fluid control valve 12 arranged in a high pressure fluid system and having a motor 13 capable of opening the valve only during conditions of low pressure drop thereacross the valve being biassed towards the closing position such as by a spring 17, consists in providing means to cause closing movement of the valve and means for limiting the extent of this movement. As shown, a valve, of the emergency stop valve type, is held open by fluid pressure acting on the piston 14, the fluid pressure being led to the cylinder 15 by pipes 18, 21, 22, and controlled by pistons 24, 25, on a common rod 26. A trip valve 20 when actuated upon excessive speed of the shaft 42 will interrupt communication between the pipes 21, 22, and open the pipe 22 to the atmosphere at 44 to cause the valve 12 to close. According to the invention a further pipe 45 is provided which enters the cylinder 15 just below the piston 14 when the valve is in its open position. A piston 46 on the rod 26 normally closes the pipe 45. When the piston 46 is moved downwardly by pivoting a lever 47, the pipe 45 is connected to the atmosphere through the annular clearance 52 and the piston 14 will move a slight distance in the closing direction until it covers the end of the pipe 45. During this slight movement communication between the pipes 18, 21, 22, remains unbroken. To completely close the valve 12 the rod 26 is raised by moving the lever 27 to the dotted position so that the pipe 21 is open to the atmosphere at 33.
Patent GB-1278297-A (GB)
Title: Process and apparatus for manufacturing preformed moulding materials
IPC: B29C48/38
Filed: 1969-06-20
Abstract: 1278297 Forming granules CHEMISCHE WERKE ALBERT 20 June 1969 [22 June 1968] 31375/69 Heading B5A Granules of a hardenable synthetic resin composition are made by mixing the resin and conventional additives, kneading the mixture in one or more stages so that the components will not separate during subsequent treatment, optionally cooling and comminuting the resin and then forcing the mixture through a multiple orifice die and granulating the extruded mixture. The material is forced through the die either by a feed screw which can be moved longitudinally to extrude the mixture; rotation of the screw being reduced or stopped during the extrusion or by a screw feeding a variable volume cavity, reduction of the volume with reduced rate of rotation of the screw being used to extrude the mixture. The extruded product may then be cooled and sized; the oversized and undersized fractions being recycled. The peripheral speed of the feed screw may be 0À1 to 40 m/min. and the axial movement of the screw 0À1 to 3 screw diameters. As shown, extruder screw 11 feeds into a cavity 22, the volume of which is variable by piston 23 operated by double acting piston and cylinder 24. The extruder barrel 12 is equipped with heating and cooling means. When the mass of material in cavity 22 has built up to a predetermined volume, screw 11 is slowed or stopped and piston 23 is moved to decrease the volume of cavity 22 and extrude and granulate the material.