baber/WOPTO huggingface dataset:
Patent GB-1066283-A (GB)
Title: Manufacture of thioethers
IPC: B01J31/02
Filed: 1964-06-05
Abstract: Thioethers are obtained by reacting one or more olefinic compounds with H2S in the liquid phase under a pressure sufficient to maintain the reaction medium in the liquid state in the presence of a catalyst composed of at least one organic polysulphide.  The reactive liquid phase preferably contains a solvent for the thioether or thioethers to be prepared, preferably one with a high ionizing power, a specified solvent being the thiother product itself.  Suitable olefinic compounds are hydrocarbons containing at least one double bond and their derivatives in which one or more H atoms, particularly those in the a position with respect to the double bond, are substituted by radicals or groups such as aryl radicals or carboxyl radicals. Suitable organic polysulphides are those of the formula: R1SnR2 in which R1 and R2 are organic groups, while n is at least 2. Suitable temperatures are between 100 DEG  and 200 DEG  C. and suitable pressures are from 10 to 300 atmospheres.  The H2S be in the form of industrial gases, i.e. in the form of relatively impure H2S which may contain CO2.  The process may be carried out in the apparatus shown in the drawing which consists <PICT:1066283/C2/1> of two reservoirs 1 and 7 for the olefine and H2S respectively, each connected to a source of N2 under pressure via lines 2 and 8, respectively. The bottom of each reservoir connects with a proportionating pump 4 which delivers olefine and H2S, in a given ratio, via a preheater 6 to a jacketed reactor 11, equipped with a mechanical or magnetic stirrer.  The gas liquid mixture leaving the reactor via line 15 is separated in an assembly of apparatus comprising separators 16 and 17, a condenser 18, a conduit 19 connecting the separator 16 to the condenser 18, a drain device 20 for the separator 17 and a conduit 21 conducting the liquid to an evaporation or flash pot 22.  The separated gases escape at 23, the evaporator 22 has a reflux device arranged thereabove, for separating off the product via 27, while the drain 25 from the evaporator communicates with a recycling pump 26, which delivers into the reactor 11. Examples are given, including one in which a thioether is prepared from acrylic acid, namely di-(2-carboxyethyl)-sulphide.
Patent GB-1448812-A (GB)
Title: A 1,4-bis-formyl-cyclohexane-polycarboxylic acids the process for their preparation
IPC: C11D3/00
Filed: 1975-05-29
Abstract: 1448812 Inhibition of scale; cleaning metals JOH A BENCKISER GmbH 29 May 1975 [9 July 1974] 23402/75 Heaidng C7E [Also in Divisions C2 and C5] The invention relates to a process for inhibiting the formation of scale-forming deposits in aqueous systems which comprises adding to the system a compound of Formula:- in which one of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> in a carboxyl group and the remainder of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each a hydrogen atom or a carboxyl group and R<SP>5</SP> is a hydrogen atom or a group -CH 2  COOH. The process can be advantageously used for example in automatic bottle machines or in tank or container cleaning operations. Milk churns may be cleaned in a composition comprising the above compound, Na silicate, Na 2 CO 3 , NaOH, Na 2 SO 4 , Na 3 PO 4  and a wetting agent; bottles with Al fittings may be cleaned in a solution containing the above compound, trisodium citrate, Na gluconate, NaOH and antifoam.
Patent GB-405570-A (GB)
Title: Improvements in or relating to submersible pumps
IPC: G01F23/24
Filed: 1933-08-23
Abstract: 405,570. Centrifugal pumps. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Aug. 23, 1933, No. 23443. Convention date, May 2. [Class 110 (i).] A submersible set consisting of a pump a and motor b is housed in a bell e to which compressed air can be supplied under a control exercised by the liquid level in the bell. The air reservoir m is maintained at the appropriate pressure by a pump o driven by a motor p subject to control by a pressure operated switch r. A pipe n communicates between the bell e and the reservoir m, and includes a valve s. A time switch v controls the operation of the valve in accordance with the movement of the pointer of the ammeter u connected in circuit with the resistance x which is wound on a cylinder y of insulating material arranged within the bell. When the liquid rises in the bell e to a predetermined level, the ammeter u causes the operation of the time switch v and the valve s so that compressed air is supplied from the reservoir m to the bell e for a definite time. In a modification the time switch is omitted and the motor p is controlled by the ammeter u. The resistance x may comprise two or more portions differing in conductivity, or cross sectional area, or both.
Patent GB-889842-A (GB)
Title: Improvements relating to motor-vehicle doors
IPC: B60N2/75
Filed: 1959-07-08
Abstract: 889,842. Hand rails and safety guards in vehicles. DAIMLER-BENZ A.G. July 8, 1959 [July 9, 1958], No. 23471/59. Addition to 882,839. Class 103(4). The bow - shaped grab-handle 16 and the door handle 18 with its bearing 17, of the parent Specification, are carried by an L - shaped mounting plate 13 secured to the inside 11 of the door. The lower end of the oblique arm 14 of the plate is substantially level with the arm rest 12. The door also has a rail 19 and a guide slot 20 therebelow for slidably receiving a handle 21 for operating a window raising device.
Patent GB-718285-A (GB)
Title: Improvements in or relating to pipe joints
Inventor: YATES HENRY GEORGE
IPC: F16L17/08
Filed: 1951-10-09
Abstract: 718,285. Pipe joints. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Sept. 29, 1952 [Oct. 9, 1951], No. 23494/51. Class 99 (1). A split metal clamping ring e has an annular rib-and-groove connection c with each of the pipe ends a, between which is located an undivided ring m enclosed by the clamp. Flexible, annular, sealing discs n are forced by the pipeline pressure against reduced extensions of the pipe ends and against annular internal shoulders m<SP>1</SP> on the ring m. The discs n are retained in their operative position by a coiled spring p, or by a leaf spring of a width equal to the distance between the discs which is bent into cylindrical form and sprung into position lining the ring m. The discs n are also sprung into position within the ring m. Holes q are provided in the clamping ring to prevent fluid pressure building up within it.
Patent GB-1531003-A (GB)
Title: Shaving units
IPC: B26B21/40
Filed: 1975-05-29
Abstract: 1531003 Razor blade units GILLETTE CO 18 May 1976 [29 May 1975] 23500/75 Heading B4B A shaving unit comprises a blade unit 5, a cap member 4 and a guard member 3, wherein the cap and guard-members are movable either relative to each other or in unison and relative to the blade unit against a resilient restoring force in response to forces transmitted to the unit during shaving to increase the shaving angle, the blade exposure or both. As shown in Fig. 1, the blade unit 5 is clamped to a platform member 1 of the unit and the guard and cap are formed as an integral unit with end walls (8), Fig. 2 (not shown) so as to be slidable in the plane of the blade unit. In use, depending upon the pressure applied to the guard against the action of a spring 12 the blade exposure can be varied. In a modification of the latter embodiment, Fig. 5 (not shown) the guard is integral with the platform member and the cap only is movable relative to the blade unit against the action of a spring (12<SP>1</SP>); the cap may be slidable, Fig. 5 (not shown), or pivotable, Fig. 9 (not shown). In the embodiment shown in Fig. 13, the blade unit 5 is secured to a guard 3 of flexible material such as by applying pressure to the guard, the blade unit moves rearwardly relative to the cap 4, the resilience of the guard returning the blade unit to its neutral position. In a modification of the embodiment of Fig. 13, the blade unit is secured to the cap and platform member and the guard only moves. In the construction shown in Fig. 17, the cap is integrally connected by a hinge portion 17 to a clamping member 16 and provided with end walls 18 having studs 19 slidable in grooves 20 in the platform. By applying pressure to the cap against the action of a spring 24, the blade exposure can be varied.
Patent GB-461650-A (GB)
Title: Improvements in or relating to the production of resin emulsions
IPC: C08J3/02
Filed: 1935-08-21
Abstract: Aqueous emulsions of heat reactive synthetic resins are made by mixing the resin and an emulsifying agent without other components and without heating, adding water during the mixing, and continuing the mixing and gradual addition of water until the water-in-resin emulsion first produced is converted into a resin-in-water emulsion. The resins may be phenol-formaldehyde, urea-formaldehyde, or alkyd resins, or those obtained according to Specifications 267,736, 293,453, and 324,025, [all in Class 2 (iii)].  A viscous resin obtained by reacting phenol, tung oil, hexamethylene tetramine, and phosphoric acid is kneaded with an emulsifying agent such as triethanolamine oleate, water being added slowly and continuously until phase inversion occurs.  The emulsion obtained can be diluted to any desired degree.  In general, emulsifying agents such as soaps, clays, casein-ammonia, or gum arabic are used in amounts of from 1--10 per cent of the weight of resin.  Fillers, pigments, metal powders, and the like may be added to the emulsion, preferably while still in the water-in-resin state.  Specifications 296,685 and 313,027 [both in Class 81 (i)], also are referred to.ALSO:Aqueous emulsions of heat reactive synthetic resins are made by mixing the resin and an emulsifying agent without other components and without heating, adding water during the mixing, and continuing the mixing and gradual addition of water until the water in-resin emulsion first produced is converted into a resin-in-water emulsion.  The resins may be phenol-formaldehyde, urea-formaldehyde, or alkyd resins, or those obtained according to Specifications 267,736, 293,453, and 324,025, [all in Class 2 (iii)].  A viscous resin obtained by reacting phenol, tung oil, hexamethylene tetramine, and phosphoric acid is kneaded with an emulsifying agent such as triethanolamine oleate, water being added slowly and continuously until phase inversion occurs.  The emulsion obtained can be diluted to any desired degree.  In general, emulsifying agents such as soaps, clays, casein-ammonia, or gum arabic are used in amounts of from 1--10 per cent of the weight of resin.  Fillers, pigments, metal powders, and the like may be added to the emulsion, preferably while still in the water-in-resin state. Specifications 296,685 and 313,027, [both in Class 81 (i)], also are referred to.
Patent GB-1085096-A (GB)
Title: Electric switches
Inventor: BAIN ROBERT
IPC: H01H23/08
Filed: 1964-06-08
Abstract: 1,085,096. Snap-action switches. TENBY ELECTRICAL ACCESSORIES Ltd. July 2, 1965 [June 8, 1964], No. 23558/64. Heading H2B. Fixed contact members 16 and a pivot piece 14, on which a contact beam 19 is pivoted, are integral with respective laterally-positioned terminals (18 and 15, Figs. 1 and 3, not shown) and retained in the base 10 by the integral cover and face-plate 21 which also carries a rocker 23. An abutment 24 of rocker 23 engages leaf-springs 20 carried on beam 19 to provide over-centre snap action of the beam 19. A member 26 is mounted on beam 19 and has projections 26a which are engaged by the abutment 24 in its end positions to reduce contact bounce.
Patent GB-379504-A (GB)
Title: Improvements in clutch plates
IPC: F16D13/64
Filed: 1931-08-21
Abstract: 379,504. Friction clutches. DEHN, F. B., 103, Kingsway, London.-(Borg & Beck Co. ; 6558, South Menard Avenue, Chicago, U.S.A.) Aug. 21, 1931, No. 23567. [Class 80 (ii).] A clutch plate comprises a disc 6 divided into a plurality of sectors 8 by slots 9, 10, the side margins 11 of the sectors being bent out of the plane of the disc on one side thereof. A friction ring 14 is secured, as by rivets 15, to the central unbent part of each sector and a friction ring 18 is secured to the other side of the disc 6 by rivets 19 which pass through the ring 18 and through tongues 16 bent up from the disc 6. A hub 7 for the latter has side plates 21 and filler plates 23, which may be loose, the disc 6 and plates 21, 23 having openings 24 accommodating springs 25 which form cushions between the disc 6 and the hub 7 to absorb and prevent the transmission of vibrations.
Patent GB-492121-A (GB)
Title: Improvements in forced flow boilers
IPC: F22B29/02
Filed: 1937-08-30
Abstract: 492,121. Forced-flow steam boilers. LA MONT STEAM GENERATOR, Ltd. Aug. 30, 1937, No. 23727. Convention date, Aug. 28, 1936. [Class 123 (ii)] In a forced-flow boiler having radiationheated tubes 10 and convection-heated tubes 13 connected in parallel between a circulation pump 3 and a drum 1, the tubes 10 are arranged vertically between widely separated headers 7, 11 in order that the buoyancy of the steam liberated may assist the upward circulation, whereas the inlet and outlet ends of the tubes 13 are arranged substantially at the same level and the forced circulation receives little assistance from the upward flow of liberated steam. When the headers of the convectionheated tubes are arranged at different levels, the length of the tubes is at least five times the vertical distance between the headers. The radiation-heated tubes may have a greater flow cross-section than the convection-heated tubes.
Patent GB-1009229-A (GB)
Title: Injection molding
IPC: B29C45/54
Filed: 1962-06-15
Abstract: 1,009,229. Injection moulding machines. BORG-WARNER CORPORATION. June 15, 1962 [June28, 1961], No. 23761/65. Divided out of 1,009,227. Drawings to Specification. Heading B5A. The subject matter is the same as that in Specification 1,009,227 but the claims differ.
Patent GB-1036697-A (GB)
Title: Viscosity stabilised polyamides and a process for their manufacture
Inventor: CUBBON ROBERT CHARLES PATRICK
IPC: C08K5/50
Filed: 1964-06-09
Abstract: Triphenyl o  - carboxy - n - decyl - phosphonium bromide is prepared from o -bromoundecanoic acid and triphenyl phosphine under nitrogen in a sealed tube (Example 1).  In Example 3 tributyl o -carbonyl-n-decyl-phosphonium bromide is prepared by a similar reaction in a sealed tube containing benzene.ALSO:A high molecular weight, linear, fibre-forming polyamide may be prepared by heating an amino-acid or an amide forming derivative thereof or an equimolecular diamine/dicarboxylic acid mixture or a mixture containing amide-forming derivatives thereof, or a polyamide obtained from such a compound or such a mixture with less than 5 mole per cent of a phosphonium compound of formula <FORM:1036697/C3/1> in which R1 is ahydrocarbon or substituted hydrocarbon group, R2 and R3 are H, hydrocarbon or substituted hydrocarbon groups, R4 is alkylene, arylene or aralkylene, A is an amino or carbonyl group or a group capable of functioning as an amino or carbonyl group during the reaction, X is an anion and n is the valency of X.  Non - phosphorus - containing starting materials specified are:  o -amino-caproic acid, e -caprolactam, pentamethylene diamine, sebacic acid, hexamethylene diamine, adipic acid, decamethylene diamine, ethyl adipate, suberic acid, N-formyl derivatives of hexamethylene diamine, hexamethylene di-ammonium adipate, o -aminolauric acid.  Phosphonium ions specified are those in which R1- 3 may be aryl, e.g. Ph optionally substituted by Me or MeO, and R4 may be propylene, butylene or decylene, may be, e.g. triphenyl carboxyalkyl phosphonium, diphenyl ethyl carboxyalkyl phosphonium, tributyl carboxyalkyl phosphonium, methyl ethyl phenyl carboxyalkyl phosphonium, dibutyl ethyl aminoalkyl phosphonium, tributyl aminoalkyl phosphonium, triphenyl aminoalkyl phosphonium and tri-p-anisyl carboxylalkyl phosphonium. X may be halide, e.g. bromide.  The phosphonium compounds may be added at any stage before, during or after the polymerization which may be a batchwise, stepwise or continuous process. Alternatively they may be added to the molten polymer immediately prior to melt spinning. The polymerization may be carried out in the absence of oxygen, e.g. under an inert gas such as nitrogen. A diluent, e.g. benzene may be used and delustrants, pigments, dyestuffs, and plasticizers may be added at any stage of the process.  H2O and HCl may be eliminated. In examples the process is carried out in a sealed tube or autoclave at super-atmospheric pressure.
Patent GB-1422871-A (GB)
Title: Sealing strips
IPC: E04B1/68
Filed: 1973-05-18
Abstract: 1422871 Expansion joint seals COLEBRAND LTD 25 March 1974 [18 May 1973] 23813/73 Heading E1B A multi-cellular sealing strip for expansion joints in roads or bridges or joints in fluid carrying pipes or tanks has communicating passages 8 between the cells whereby the pressure therein is equalized, the cells also being in communication with the environmental pressure at one side of the seal. The communication passages may be filled with porous packing.
Patent GB-138293-A (GB)
Title: Improvements in stitched seams and method and machine therefor
IPC: D05B29/06
Filed: 1919-09-29
Abstract: 138,293. Union - Spezialmaschinenfabrik Ges. May 26, 1919. [Convention date]. Seams.-Openwork seams and edge trimmings are made by zigzag lines of stitches, of which some of the stitches do not engage with the work. Figs. 3 and 5 show openwork seams, and Fig. 4 shows an edge trimming. Sewing-machines; presser-feet; work-supports. -Suitable enchaining tongues are furnished on either the presser-foot or the throat plate. A machine such as that described in Specification 115,165, having a laterally vibrating needle, may be used.
Patent GB-1004426-A (GB)
Title: Improvements in or relating to the continuous production of melamine
IPC: B01J4/00
Filed: 1963-06-14
Abstract: Melamine is prepared in a continuous process by heating urea and ammonia at at least 250 DEG  C. in a fluidized bed of inert material and bringing the ammonium cyanate vapour so formed into contact with a catalyst consisting of phosphoric, boric, arsenic, or sulphuric acids, including their salts, organic esters and anhydrides or mixtures thereof, and of silicon dioxide, titanium oxide, zirconium oxide, vanadium pentoxide, chromium oxide, iron oxide or carbon having no inner surface, or of aluminium oxide, at a temperature of 260 DEG  to 450 DEG  C. in a static bed, a copper apparatus being used.  It is preferred that the inert material of the fluidized bed be copper grains.  Comparative examples relate to the process of the invention being performed in steel and quartzwave apparatuses. Specifications 767,344 and 910,197 are referred to.
Patent GB-675452-A (GB)
Title: Improvements in methods of glossing paper
IPC: D21G9/00
Filed: 1950-09-29
Abstract: 675,452. High gloss coated paper. CLAYTON, T. A. Sept. 29, 1950, No. 23845/50. Classes 96 and 140. High gloss paper is made by coating a paper web on one side with an aqueous dispersion of a thermoplastic resinous polymer having a second order transition temperature (T 2 ) between 55‹ and 125‹ C., e.g. polystyrene, polyethylene, polyvinyl chloride, vinyl chloride-vinyl acetate copolymers, or polymerized methyl methacrylate, optionally with synthetic rubber copolymers, e.g. butadiene-1,3 and acrylic nitriles having the formula where R is hydrogen or an alkyl group, e.g. 3 to 35 per cent thereof with 97 to 35 per cent of styrene, the web being dried and heated to 20‹ to 60‹ C. higher than the said temperature (T 2 ) and fed between the nip of a hard mirrorfinished glossing roll coacting with a resilient roll, the coated surface of the paper being in contact with the glossing roll for, e.g., 180 degrees angular distance, to heat the coating to a temperature T 2  + 40‹ to 80‹ C. - (P x 0.4 C.), where P is the percentage of plasticizer in the coating, and stripping the web tangentially from the glossing roll so that it travels in a straight line while the coating cools and sets. The heat and pressure, e.g. 200 to 1500 pounds per square inch, in the glossing press rolls cause the coating to flow to form a tenacious film, e.g. 0.00003 to 0.0002 inch thick. Dyes, fillers, pigments, and plasticizers may be included in the coating composition. As illustrated, paper 1 is coated as it passes between rolls 4, 5, is dried, and the coating set at a temperature T 2  + 20 ‹ to 60‹ C., glossed at a press 11, 12, and wound up at 14. Reference has been directed by the Comptroller to Specification 673,872.
Patent GB-701864-A (GB)
Title: Improvements in motor road vehicles
IPC: B60J5/02
Filed: 1951-10-12
Abstract: 701,864. Body details. PRETI, E., and SALVI, M. Oct. 12, 1951, No. 23863/51.. Class 108(1) A road vehicle having two forward wheels 8, 9 and one rear wheel 10 is provided with a seat 5 and is characterized in that access to the seat is obtained via a door 2 at the front of the vehicle and that the controls are mounted on the door.
Patent GB-1562546-A (GB)
Title: Removing specific factors from blood
IPC: A61M1/36
Filed: 1977-06-08
Abstract: The device has a clearly improved effect because it is only blood plasma which is passed through the means for removal of the undesirable substances. The device comprises separation means (3) for the continuous separation of plasma and blood cells, a removal means (5) for the removal of the specific substances from the separated plasma, and means (6) for back-mixing of the plasma. The removal means (5) may have an adsorber which contains either insoluble or immobilised substances for the adsorption of specific substances. The removal agents may also comprise a dialyser, so that the device can be employed as an artificial kidney. <IMAGE>
Patent GB-950061-A (GB)
Title: Improvements in or relating to thermometer baffles
Inventor: PARKE DUDLEY WAINWRIGHT
IPC: G01K1/10
Filed: 1959-07-13
Abstract: 950,061. Thermometers. HEADLAND ENGINEERING DEVELOPMENTS Ltd. May 27, 1960 [July 13, 1959], No. 23973/59. Heading G1D. The sensitive element of a temperature responsive instrument such as a thermistor, thermocouple or thermometer is protected from corrosive material in a vessel by being mounted in a metal pocket 15, Fig. 2, which is heat-insulated from a tubular metal support 26 by a material 19, such as a fluorocarbon or laminated plastic, which is a thermal insulator, the parts being sealed from each other in a liquid-tight manner. As shown the material 19 is formed as a ring which is clamped to support 26 by means of a thimble 22 and roller 24 of tantalum or other metal of high corrosion resistance with the interposition of a washer 28 of similar material to that of ring 19. The pocket 15, which is held in ring 19 by a nut 20 and washer 21, may be made of tantalum, enamelled steel, zirconium, niobium or other metal. In a modification the member 22 is upwardly extended and threadedly engages the tubular support 26. In a further form, Fig. 4, the end 38 of a tube 37 is enlarged and the ring 41, which has an upstanding boss 42 to which the pocket 30 is secured by a nut 33 and washer 34, is directly secured thereto by screws 45 supported by a washer 44. The boss 42 threadedly engages the inside of end 38 of tube 37 which may be formed separately from tube 37 and welded thereto at 39. In modifications, boss 42 and washer 44 are omitted. In a further form, screws 45 and washer 44 are omitted and ring 41 has an upstanding flange surrounding the lower end 38 of tube 37, the parts being sealed by a corrosion resistant cement.