baber/WOPTO huggingface dataset:
Patent GB-1092296-A (GB)
Title: Process for producing high impact polystyrenes
IPC: C08F279/02
Filed: 1965-04-13
Abstract: A moulding composition is produced by polymerizing in the presence of an alfin catalyst in a first stage a composition consisting of 50 to 100% of (a) conjugated hydrocarbon diene and 50 to 0% of (b) a monovinyl or monovinylidene aromatic hydrocarbon and thereafter introducing in at least one increment a composition consisting essentially of (b) and optionally a quantity of (a) under alfin polymerizing conditions to the reaction product of the first stage to produce a composition having 4 to 30% (a) to 96 to 70% (b).  Dienes (a) specified are butadiene-1,3 isoprene, 2,3-dimethyl butadiene, piperylene, 1 - phenyl - 3 - methyl butadiene and myrcene.  Monomer (b) may be styrene, vinyl toluene, vinyl xylene, ethyl vinyl benzene, isopropyl vinyl benzene, chlorostyrene, ethyl vinyl toluene, isopropyl vinyl benzene, diethyl vinyl benzene or mixtures thereof. The polymerization is carried out in an aliphatic and/or aromatic hydrocarbon diluent.  One or more monomers (c) may be added in amount up to 35% of the total amount of monomer, these (c) monomers having the formula H2C = CR1X1 wherein R is hydrogen, alkyl, cycloalkenyl, aryl, substituted alkyl or aryl, or X2, and X1 and X2 are polar groups containing at least one atom other than carbon or hydrogen. A cross-linking agent of formula H2C = CR-X-CR = CH2 wherein R is hydrogen or alkyl and X is an aliphatic or aromatic divalent radical may be incorporated at some stage in the process.  In the examples, the catalyst comprises sodium isopropoxide/allyl sodium/sodium chloride, the solvent is hexane, (a) is butadiene and (b) is styrene. Monomer (c) is methyl methacrylate in Example 12 and acrylonitrile in Example 13. In Examples 14 to 16 divinyl benzene is used as cross-linking agent.
Patent GB-419350-A (GB)
Title: Process and apparatus for clarifying viscose
IPC: D01F2/08
Filed: 1934-05-28
Abstract: <PICT:0419350/IV/1> Viscose is rapidly heated to a temperature which is high relative to room temperature but below its point of instantaneous coagulation in order to render it as fluid as possible, and while in this condition it is clarified in a high speed centrifugal separator and then cooled at a rate determined by the state of ripeness desired.  Preferably, an atmosphere of greatly reduced pressure is maintained in the receiver of the centrifugal separator in which the viscose is atomized after clarification, in order to remove gases from the viscose.  As shown, crude viscose from tank A is forced by air pressure through heater R1.  The heating fluid is maintained at constant temperature slightly above that to which the viscose is to be heated, by means of pump P, steam heater R, and thermostat T acting on the steam inlet.  The heated viscose enters the closed centrifugal separator S the output of which is determined by pump P1.  The viscose is separated from impurities in the bowl of the centrifuge.  The apparatus is shaped so that the viscose is atomized as it issues at high speed from the bowl into the vapour-tight receiver where the pressure is reduced to a value just above the water vapour pressure.  The viscose is then rapidly cooled in passing through pump P2 and cooler R2.  The temperature of the cooling liquid is chosen so as to give the desired ripeness to the viscose issuing from the cooler.  If desired instead of passing the viscose through the heater R1, an alternating electric current may be passed through the viscose so as to heat it.
Patent GB-109337-A (GB)
Title: Improved Rake or Stirrer for use in Furnaces and the like.
Inventor: CREIGHTON FRANCIS JAMES
IPC: F23Q13/00
Filed: 1916-11-06
Abstract: 109,337. Creighton, F. J. Nov. 6, 1916. Rakes.-A rake or stirrer for removing clinker in furnaces is formed with removable teeth 12 inserted in sockets which are formed with projecting supports 10 for the backs of the teeth. The teeth have projecting keys or feathers 14 adapted to engage in slots provided in the sockets.
Patent GB-114586-A (GB)
Title: Improvements in or relating to Shade Supports for Gas Burners and Electric Lights.
Inventor: GOULD FREDERICK JOHN
IPC: F21V17/02
Filed: 1917-10-31
Abstract: 114,586. Gould, F. J., and Stamp, E. S. Oct. 31, 1917. Shade and reflector holders. - Means for supporting the shade or reflector of a gas burner or an electric lamp comprises two inwardly projecting pins arranged at opposite sides of the inner rim of the shade &c. and engaging slots or like openings, preferably vertical slots, in a hollow, preferably spherical, body, the shade &c. being provided with a screw or other device for bearing against the body and retaining the shade &c. in the tilted position. Fig. 1 shows the shade d mounted on a spherical body a by means of pins c engaging two of the slots c in the body, the shade being held in the tilted position by means of a finger-screw g carried by a plate. The body is provided with a pair of slots c<1> of greater length than the slots c, so that the shade can be removed by raising the pins out of the slots c, and causing them to travel down the slots c<1>. In a modification, the pins may be screwed outwardly when removing the shade from the body.
Patent GB-569358-A (GB)
Title: Improvements in or relating to thermostatic means for regulating the heat supply to liquid heating apparatus
IPC: G05D23/02
Filed: 1943-10-01
Abstract: 569,358. Thermostats. GRIFFITHS, E. E., and GRIFFITHS, J. E. Oct. 1, 1943, No. 16097. Drawings to Specification. [Class 64 (ii)] [Also in Group XXIX] In the combination of a kettle or the like, a heater, and a thermostatic control as in Specifications 555,298, 568,957 and 569,357, the ends of the heat sensitive chamber or pipe have openings or can readily be rendered accessible, for the passage of a cleaning brush or for flushing out the interior of the chamber or pipe. For this purpose the connection from the top of the chamber to the flexible connecting pipe for vapour may be a removable U-pipe. The heat sensitive chamber and its connection to the valve or switch may be in the form of concentric pipes, the inner pipe being accessible for cleaning.
Patent GB-760162-A (GB)
Title: Process of making sodium metaborate and compositions comprising the same
IPC: C01B35/10
Filed: 1954-05-31
Abstract: Hydrated sodium metaborate having at least 4 molecules of water of crystallization is prepared by mixing sodium biborate (borax) with sodium hydroxide in a molar ratio of 1 to 2 in the presence of water in an amount equal to that taken up by the desired hydrate, and agitating the mixture to obtain a granular hydrated metaborate.  The quantity of water employed includes water added as such, formed is situ or present as water of crystallization. Equations illustrate the employment of sodium biborate penta- and deca-hydrate to obtain sodium metaborate tetra- and octa-hydrate. The caustic soda may be employed as a concentrated solution or as a solid.  The reaction is preferably effected at 70 to 80 DEG F. Sodium chlorate may be incorporated during the reaction and preferably at a point before all the water is combined as water of crystallization, whereby a co-crystallized mixture of sodium metaborate hydrate and sodium chlorate is obtained which is suitable as a herbicide, and is non-inflamable.  The amount of chlorate incorporated may be from 25 to 60 per cent of the mixture.ALSO:A non-inflammable herbicide consists of a co-crystallized granular solid composition of sodium metaborate octa- or tetrahydrate and sodium chlorate (see Group III). The chlorate may be present in amounts from 25 to 60 per cent.
Patent GB-976469-A (GB)
Title: Photographic material having a layer of a photopolymerisable composition
IPC: C08F2/46
Filed: 1961-05-04
Abstract: An aqueous suspension of cadmium sulphite is made by reacting sodium sulphite and cadmium chloride in an aqueous solution of polyacrylamide.ALSO:Aqueous solutions of water-soluble ethylenic monomers are photopolymerized using, as catalysts, water insoluble metal oxalates and sulphites, e.g. cadmium, zinc, strontium and silver sulphites, and cadmium, silver or mercury oxalates.  Monomers specified are acrylic acid and the amide, nitrile and calcium salt thereof, methacrylamide, vinyl pyrrolidone and 1,2-dimethyl -5- vinyl pyridinium methosulphate. The polymerizable solution may contain a binder, e.g. zein or monostearin.  The process is used in photographic reproduction, whereby a layer of photopolymerizable material is exposed to a light image, followed by the removal of unpolymerized monomer.
Patent GB-163604-A (GB)
Title: Improvements in garment hangers
IPC: A47G25/40
Filed: 1920-06-15
Abstract: 163,604. McGinnis, W. A. June 15, 1920. Suspenders for articles of dress.-In a collapsable garment hanger of the type in which pivoted hanger arms provided with pivoted spreader arms are grooved to house the spreader arms when the appliance is collapsed, the hanger arm 2 has a pivot plate 19, Fig. 3, engaging a channel 11 in a socket member 12 secured to the end of the other hanger arm 1, the member 12 also providing channels 14 to receive the walls 15 of the arm at the sides of the central groove. The spreader arms 3, 4 carry clips 8 for holding a garment to the arms. The free ends of the arms 1, 2 are provided with metal caps and a projection 22 and recess 23 which prevent lateral movement when. the device is collapsed.
Patent GB-1175034-A (GB)
Title: Earthing Contact
IPC: H01R4/64
Filed: 1968-04-05
Abstract: 1,175,034. Terminals. UNITED-CARR Inc. 5 April, 1968 [6 April, 1967], No. 16467/68. Heading H2E. A contact having an axial bore is secured in an aperture in an earthing panel by external ridges on its head from which extend legs being arranged to receive between them a contact member, e.g. of circular or square cross-section. To facilitate engagement the legs are angled towards each other and have inner surfaces of concave cross-section. As the head 12b has axially extending knurls 30 and is forced into an aperture 26b in panel 24b, the contact member 32 being received between legs 14b. Instead of being knurled, the head (12) may be screwed into the earthing plate or a printed circuit board, being secured by a thread (28) in the wall of an aperture (26) of slightly different pitch to the thread (20) on the contact, or the threads (20) may be selftapping.
Patent GB-145456-A (GB)
Title: Improvements in and connected with the weaving of plush or like pile fabrics
IPC: D03D27/06
Filed: 1920-06-18
Abstract: 145,456. Frohlich, T. [Firm of]. Aug. 11, 1915, [Convention date]. Pile-fabric looms; warps, weaving in periodically.-In looms for weaving plush and like fabrics with the aid of transverse wires, the wires g, g', g<2>, g<3> are arranged beneath the ground warps a, a' and the woven fabric, and the severed ends of the pile warps d, d' not to be employed for the part of the pattern being woven at any time are nipped between the wires and the breast-beam plate f. In producing the required downward pressure, the woven fabric, which comprises wefts c, c<1> and a stuffer warp b in addition to the ground and pile warps, is inclined downwards in front of the breast beam. The pile loops are cut in the known manner by knives at the ends of the wires as these are drawn out of the loops after passing the breast beam. When the pile warps are to be woven into the fabric to form pile, they are raised into the sheds and bound by the wefts.
Patent GB-515454-A (GB)
Title: Improvements in or relating to the treatment of base materials, particularly felted or woven fibrous materials, for the purpose of rendering the same water-repellent
IPC: D06M13/188
Filed: 1938-06-02
Abstract: 515,454. Sizes. McLEAN, A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 2,1938, No. 16591. [Class 121] [Also in Groups VIII, III, and IV] Compositions suitable for rendering materials water-repellent are prepared by digesting an alkali-soluble vegetable protein with an aqueous solution of normal aluminium formate at a raised temperature. In examples (1) alkalisoluble ground-nut protein, water and normal aluminium formate solution are digested for 1¢ hours at 60‹C.; (2) unsized paper from unbleached sulphate woodpulp is sized and rendered water-repellent by impregnation with a diluted solution prepared as in (1), passing between squeeze rollers and drying; (3) unsized tissue paper from bleached sulphite pulp is treated as in (2).
Patent GB-694471-A (GB)
Title: Improvements relating to electrically driven machines for mixing and kneading or formincing
IPC: A47J44/02
Filed: 1949-05-12
Abstract: 694,471. Motor driving arrangements. LAMB, H. T. May 4, 1950 [May 12, 1949], No. 16625/51. Divided out of 694,424. Class 35. [Also in Group VI] In a machine in which a rotated mixing bowl 3 is removable and replaced by a mincing unit 4 when the machine is up-ended, as in the parent Specification, the swingable arm 5a (carrying the usual removable dolly) is rigid with a sleeve 5 on the pillar 2, and the sleeve 5 carries a supporting foot 9 projecting at right-angles to 5a so that when mincing, the arm 5 is swung down until the foot 9 rests on the table. The amount of necessary swing down of 5a to bring the foot 9 on the table is determined by the end of a slot 5c in the sleeve 5 coming against abutment pin 8 fixed in the column 2. This pin 8 also receives the now-inverted lid 7 of the mixing bowl which lid acts as a mince-receiving tray. When mixing, a bowl scraper depends from another arm pivoted in a bearing 5b at one side of the sleeve 5.
Patent GB-365957-A (GB)
Title: Improvements in mercury vapour rectifiers
IPC: H01J13/32
Filed: 1931-06-08
Abstract: 365,957. Mercury-vapour rectifiers. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 8, 1931, No. 16692. Convention date, June 6, 1930. [Class 39 (i).] Condensation of the mercury vapour is facilitated by arranging a cooling surface away from the arc path and connecting it to a potential which is negative with respect to the cathode. A rectifier is provided with a cooling jacket a and a cooling coil c which is negatively biased by means of a battery d. The potential may be applied through a switch g which is operated automatically in dependence on the load, the voltage, the vapour pressure, or the temperature of the cooling medium or of the rectifier. The magnitude of the potential may be controlled automatically in dependence on one of the above values.
Patent GB-679959-A (GB)
Title: Improvements in and relating to counting or batching devices
IPC: G06M1/10
Filed: 1949-06-23
Abstract: 679,959. Photo-electric batching circuits. SARGROVE ELECTRONICS, Ltd., and SARGROVE, J. A. Sept. 22, 1950 [June 23, 1949], No. 16701/49. Class 40 (iii). An apparatus for the counting or batching of objects such as nuts, bolts, pills and the like comprises a plurality of detecting devices each detecting objects passing along one of a like plurality of channels and means for transmitting the responses of the detecting devices to a common counting means, the responses applied to the counter being shorter in time duration than the responses originally obtained from the detecting devices. The detecting devices may comprise photo-electric cells 13, 14 and the like before which moving bands 10, 11 pass carrying the objects 12 to be counted. The objects 12 may be fed from and to common containers the plurality of bands enabling them to be spread out so as not to overlap. The pulse output from each detector consists of pulses comparatively long in duration which would overlap with pulses from other detectors if fed directly to the common counter so the output of each detector is fed to its own pulse shaping circuit 15, 16, &c. which produce short pulses from each of the longer ones applied. The pulse shaping circuits may comprise differentiating circuits or include monostable multivibrators giving output pulse lengths of a few microseconds. The output pulses from all the pulse shaping circuits are fed through a further shaping circuit 17 which ensures uniform pulse amplitude to a high speed electronic counter 18 having decade counters 19, 20 and 21 of bi-stable trigger circuits. A batching unit 22 fed by the counter consists of an adjustable co-incidence circuit giving an output when a predetermined number has been counted. This output may be used to operate unit 23 to reset the counter and to close gates 24, 25, &c. preventing further objects passing to the outlet until another container has been moved into place, for example by automatic means. Electric circuits for units 13, 15 and 17 are described with reference to Fig. 2 (not shown).
Patent GB-115198-A (GB)
Title: An improved skimmer for ploughs
Inventor: MORTON, ROBERT CRAIG
IPC: A01B15/10
Filed: 1917-11-16
Abstract: 115,198. Morton, R. C., and Wallace, D. M. Nov. 16, 1917. Ploughs.-A skimmer e which can be used with either a disk coulter or a straight-bar coulter a is made in two parts, a flat point e<1> which is preferably permanently secured in place, and a flat mould board e<2> which can be removed and reversed or turned to present any one of four different cutting-edges to the soil. The support h which is secured to the bracket b for the coulter is provided with three holes for the bolt i securing the mould board in order to meet all the arrangements of the mould board.
Patent GB-573041-A (GB)
Title: Improvements in and relating to locked coil ropes
IPC: D07B1/08
Filed: 1943-10-15
Abstract: 573,041. Wire ropes. BRITISH ROPES, Ltd., and GIBSON, A. Oct. 15, 1943, No. 16988. [Class 109] [Also in Group XXII] Ropes of the full locked type have the outer layer or layers formed of wires 1, Fig. 1, which in crosssection are in effect threesided, one side forming throughout a concavity of arcuate form and the other two sides of arcuate form producing a convexity The peak 5, Fig. 2, of convexity and the base 6 of the concave side are both displaced towards the inward side 7 which is shorter and has its arc of less radius than the outward side 8.
Patent GB-709940-A (GB)
Title: Production of yeast
Inventor: LOONEY REGINALD FREDERICK
IPC: C12N1/38
Filed: 1951-07-18
Abstract: In a process for the production of yeast there is used in the propagation medium a solution prepared by inoculating a solution containing fermentable sugar, e.g. aqueous solutions of beet molasses, beet juices, syrup from the conversion of starch, converted starch, converted wood or other forms of cellulose, with an organism capable of synthesising biotin-like substances and/or other water-soluble vitamins and yeast growth factors, e.g. Pseudomonas fluorescens and Bacillus subtilis, growing the organism in the solution and thereafter sterilizing the resulting solution.  In an example, 20 Roux flasks each containing 100 millilitres of a solution containing 20 grams of dextrose, 1 gram of casein hydrolysate and traces of minerals salt per litre, were seeded with Pseudomonas fluorescens and incubated for 48 hours at pH 6.8 and at a temperature of 30 DEG C.  A volume of 20 litres of a 5 per cent weight by volume solution of beet molasses in water was inoculated with the 2 litres of medium from the Roux flasks, which then contained 1.4 grams of moist cells of Pseudomonas fluorescens per litre, and the mixture aerated at a rate of 9.5 cubic feet of air per minute for 30 hours at a temperature of 25 DEG C and a pH of approximately 6.8, at the end of which time 4 litres of the liquor containing 200 grams of molasses obtained was autoclaved at 5 pounds per square inch pressure for 10 minutes and then added to untreated beet molasses and the whole was sterilized and filtered, the resulting mixture being then used as the medium for a yeast fermentation.
Patent GB-1535686-A (GB)
Title: Connectors
IPC: F16B21/06
Filed: 1977-04-25
Abstract: 1535686 Joining metal parts W HASSELBACHER 25 April 1977 [4 May 1976] 17056/77 Heading F2M A plastics connector for joining spaced metal plates having longitudinal projections 6, 7 in face-to-face relationship comprises a part 4 which is substantially rigid in the region of the interlocking engagement with the projection, but of increased flexibility in the areas surrounding a longitudinal cavity 11, such that when the wedge-shaped strip 3 is inserted into the cavity the walls of the connector are forced into contact with the inner surfaces of the metal plates.
Patent GB-421545-A (GB)
Title: Improvements in or relating to kaolin or other poultices
IPC: A61L15/32
Filed: 1933-06-15
Abstract: Poulticing materials, such as the mixture of kaolin and glycerin known as kaolin poultice, is prepared in the form of ready made poultices by enclosing the composition between two layers of flexible protein secured to a waterproofed fabric or paper backing.  In one form the backing is coated with protein solution, the poulticing composition is applied thereto, using a template, and the poultice again coated with protein solution; in another form a sheet of protein is laid on the backing, the poulticing material is applied thereto, another sheet of protein laid over the whole, and pressure is applied to cause adherence of the various layers.  The protein solution used should melt between 97 and 180 DEG  F. and may consist of gelatine and water, with or without glycerine.  According to the Provisional Specification the poulticing material may be mixed with the protein solution and the whole applied as a single layer to a backing.
Patent GB-854770-A (GB)
Title: Wear-resistant vane for rotary compressors
IPC: F04C18/344
Filed: 1959-05-20
Abstract: 854,770. Rotary pumps. DAVEY, P. H. May 20, 1959 [Feb. 17, 1959], No. 17095/59. Class 110 (2). A vane for a rotary pump comprises a body portion 12 made of an aluminium alloy or a magnesium alloy and wearresistant side portions 18 of steel or stainless steel which may also envelope the tips of the vane (see Fig. 3, not shown). Again, the body portion of the vane may consist of a high strength aluminium alloy whilst the wear-resistant portions consist of a low strength aluminium burning alloy. For details of actual materials employed the Specification should be referred to.
Patent GB-457018-A (GB)
Title: Improvements in or relating to multi-stage thermionic amplifiers
IPC: H03F1/50
Filed: 1936-06-19
Abstract: 457,018. Thermionic valves; amplifying circuits. PRICE, A. C., c/o General Electric Co., Ltd., Wembley, Middlesex.- (Siemens & Halske Akt.-Ges. ; Siemensstadt, Berlin) June 19, 1936, No. 17112. [Classes 39 (i), 40 (iii), and 40 (v)] In a capacity-coupled cascade amplifier operating with uniform gain over a wide band of frequencies the coupling comprises inductances L1, L2, L3, so associated with the stray capacities as to form a low pass filter with a plurality of sections each of which has a characteristic impedance approximately constant over a range of frequencies. Each section is terminated by a resistance Ri, Ra, Rg, approximately equal to the characteristic impedance of the section. The valve anode A<1>1, A<11>1 may be subdivided and the parts associated with inductances L<1>1, L<11>1 to constitute sections of the filter Fig. 3, or the valve anode may be a helix and the inductance of each turn may be such that in association with the capacity of that turn it forms a section of the filter. Specification 304,430, [Class 40 (v)], is referred to.
Patent GB-1512566-A (GB)
Title: Composting
IPC: C05F3/00
Filed: 1975-04-25
Abstract: 1512566 Composting human excrement NATIONAL RESEARCH DEVELOPMENT CORP 25 April 1975 [25 Jan 1974 8 Jan 1975] 17147/75 and 17148/75 Addition to 1498938 Heading C1B The process of Specification 1,498,938 is applied to slurries comprising human excreta.
Patent GB-463126-A (GB)
Title: Improvements in cam drives for kinematograph apparatus
IPC: G03B1/18
Filed: 1935-06-14
Abstract: 463,126. Kinematograph apparatus. SEUFERT, H. June 14, 1935, No. 17196. Void. Convention date, June 14, 1934. Drawings to Specification. [Class 97 (i)] Intermittent-feed mechanism comprises a cam, the groove in which is a curve formed by three asymmetric arcs. A feed ratio of 4 to 10 may be obtained. The pin wheel may be provided with two or more pins to engage simultaneously in grooves which may be open or closed. The walls of the groove may be cut back.