baber/WOPTO huggingface dataset:
Patent GB-1404840-A (GB)
Title: Process for the manufacture of organosiloxanes
IPC: C07F7/08
Filed: 1972-08-04
Abstract: 1404840 Preparation of polysiloxanes from halosilanes WACKER-CHEMIE GmbH 4 Aug 1972 [29 Sept 1971] 36568/72 Headings C3S and C3T Organosiloxanes, with alkyl halide by-products, are prepared by passing one or more organo halosilanes and one or more compounds ROR<SP>1</SP>, wherein R is a C 1-4  alkyl radical and R<SP>1</SP> is H or C 1-4  alkyl or acyl radical, in countercurrent to one another through a layer of filling bodies having a surface area of a least 0À1 square metre/gram at a temperature of 20- 150‹ C. Suitable silanes are those of the formulµ R<SP>a</SP> m H n SiX 4-m-n  and XSiR<SP>a</SP> 2 -R<SP>b</SP>- SiR<SP>a</SP> 2 X, wherein R<SP>a</SP> is a monovalent, optionally, substituted, hydrocarbon radical, X is Cl, Br, or I, R<SP>b</SP> is a divalent, optionally substituted, hydrocarbon radical, m is 1, 2 or 3, n is 0 or 1, and m+n is 2 or 3. There is suitably used 1-1À75 mols. of alcohol or ester, or 0À5-0À8 mols of ether, per atom of halogen in the silane. Suitable particles are of carbon, diatomaceous earth, SiO 2 , ceramic, polyolefin or catalysts, e.g. ZnCl 2  or cation-exchangers. Suitable apparatus is diagrammatically described. In Example 1 Me 2 SiCl 2  vapour is passed into a tower of granulated active carbon at 60‹ C. down which passes liquid MeOH; the product contains a linear polydimethylsiloxane and cyclic siloxanes, the latter being recycled to the tower. In Example 2 the Me 2 SiCl 2  used contains 2À56% Me 3 SiCl and the linear polysiloxane product is trimethylsilylterminated and has MW 4000. In Example 3 dimethyl ether is used as the organic compound.
Patent GB-1008975-A (GB)
Title: Process of regeneration of recycled solutions used for the production of hydrogen peroxide by means of alkyl-anthraquinones
IPC: C01B15/023
Filed: 1963-09-18
Abstract: Degraded solutions from a cyclic alkylanthraquinone-alkylanthrahydroquinone process for H2O2 production are regenerated by treatment with an oxide of Zn, Pb, Mn or Fe.  Treatment may be carried out continuously, say after the steps of oxidation and of extraction of H2O2, on all or part of the decycled solution.  The alkyltetrahydroanthraquinone thus obtained may be precipitated at low temperature and oxidized to the corresponding alkylanthraquinone, which may be recycled.  Examples are given of regeneration by heating degraded solutions containing Mn2O3, MnO2, MnO, PbO, PbO2, ZnO or Fe2O3 in amounts from 2.5% to 5% under reflux, with bubbling in of argon or air.
Patent GB-1517727-A (GB)
Title: Soil cultivating implements
IPC: A01B33/10
Filed: 1975-09-05
Abstract: 1517727 Soil cultivating implements C VAN DER LELY NV 5 Sept 1975 [11 Sept 1974] 36754/75 Heading A1B An upper region of each soil working member 2A (Fig. 2) or 30A (Fig. 4) is provided with tines 19, 20 or projections 33 differing in configuration from the lower tines 9. In Fig. 2, each tine pair 19, 20 is carried on a pin 15 which is retained in lugs 14 by abutment of the pin head 16 with a curved tine portion 8 of the corresponding lower tine 9. The lower tines 9 are integrally interconnected by the curved portions 8 and a part 12, and are retained between pairs of lugs 7 by pins 10. Each tine 19, 20 has a free end 23 received in a recess 24, and is curved to the rear with respect to the rotation direction. In Fig. 4, the projections 33 are curved over in the rotation direction.
Patent GB-1082441-A (GB)
Title: A method of obtaining malt culms and extracts thereof which are free from bitter principles
IPC: A23L7/152
Filed: 1966-08-17
Abstract: Malt culms or malt culm extracts that are free from bitter principles are obtained by treating the culms with an aqueous solution containing at least 25% by weight of a mono- or disaccharide.  The treatment is performed by the percolation of 30-50% aqueous solutions of cane or beet sugar, maltose, glucose or invert sugar, or 75-80% brewer's sugar syrup, for 2 hours or more at a temperature not exceeding 50 DEG C.  According to an Example, 4Kg. culms are submitted to extraction with 16 litres of a 40% solution of brewer's sugar in a percolator.  Second and third passes are performed each with 16 litres of water.  The extracts from the first and second passes are combined, filtered and concentrated in a vacuum under nitrogen to a syrup of acceptable taste which is free from bitter principles and rich in vitamins.  The aqueous extract from the third pass is thickened with brewer's sugar to a sugar content of 40% and used for the next extraction or percolation of a fresh batch of culms.  It is stated that the extraction of the culms with a sugar solution gives higher yields of vitamins in the extract than when extracting with water or with a 0.5% aqueous solution of citric acid. The culms from which the bitter principles have been removed by the extraction have a nutty taste which they retain after having been gently dried in air or in a vacuum.
Patent GB-370471-A (GB)
Title: Improvements in railway rail anchors
IPC: E01B13/02
Filed: 1930-12-08
Abstract: 370,471. Railway rail anchors. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(P. & M. Co.; 80, East Jackson Street, Chicago, U.S.A.) Dec. 8, 1930, No. 36933. [Class 104 (ii).] A rail anchor comprises a jaw 12 engaging one flange 13 of the rail by means of two flats 15, 17 in staggered relation, a downwardly curved portion 18 abutting on the sleeper 11, and a straight portion 21 notched at 23 to grip the other flange 10. Specification 330,285, [Class 104 (ii), Railway and tramway permanent way &c.], is referred to.
Patent GB-1159369-A (GB)
Title: Hydroxybenzyl Amines
IPC: C07F5/04
Filed: 1966-08-18
Abstract: 1,159,369. Hydroxybenzyl substituted amines. STANDARD OIL CO. 18 Aug., 1966 [22 Oct., 1965], No. 37002/66. Heading C2C. [Also in Divisions C3 and C5] The invention comprises hydroxybenzyl substituted amines selected from compounds having the formulµ wherein A is a saturated divalent alkylene hydrocarbon group having 2 to 6 carbon atoms, x is an integer from 1 to 10, Z is selected from oxygen and sulphur, R is substantially aliphatic hydrocarbon polymer group of from 50 to 20,000 carbon atoms and R 1  is an alkyl group of from 2 to 20,000 carbon atoms and stable boron compound interaction products thereof. The radical R may contain polar groups in such proportion that the hydrocarbon character of the radical is not significantly changed. Such compounds are prepared by reacting appropriately substituted phenols with appropriate polyalkylene polyamines and formaldehyde and then reacting the product with additional formaldehyde or with additional formaldehyde and a further appropriately substituted phenol. Finally, the products are reacted with boron compounds to produce boron interaction products if required. The examples relate to the preparation of products from such phenols as polypropylene- and polybutene-substituted phenols and such amines as tetraethylene pentamine and diethylene triamine, reaction products of tetra ethylene pentamine with urea and diethylene triamine with thiourea. Boron is introduced into some products by heating with boric acid. The products are employed as lubricating oil additives.
Patent GB-1317808-A (GB)
Title: Polypropylene films
IPC: C08L23/12
Filed: 1970-07-31
Abstract: 1317808 Coated film LA CELLOPHANE SA 31 July 1970 [1 Aug 1969] 37195/70 Heading B2E [Also in Divisions B5 and C3] A coated, biaxially oriented film is prepared by melt extruding a film of a blend of isotactic polypropylene with between 1% and 20% by weight of a copolymer of ethylene and vinyl acetate in which the vinyl acetate content is between 10% and 50% by weight cooling the extruded film, biaxially orienting the film and applying thereto an anchoring coating composition and/or a heat sealable or other coating composition. An optimum polymer composition is one in which the ethylene-vinyl acetate copolymer has a melt index below 70, a vinyl acetate content between 25% and 50% and is present in the blend in an amount within the range 5% to 10% by weight. The film may be surface treated with a corona discharge or subjected to surface oxidation and may be coated with an anchoring layer of, for example, conventional anchoring agents having a base of copolymers, acrylic derivatives or melamine/formaldehyde resins prior to being coated with a heat-sealable coating, e.g. a vinylidene chloride copolymer or a copolymer of ethylene and vinyl acetate, or some other coating. In examples polypropylene-ethylene/vinyl acetate films are prepared by melt extrusion, cooled, stretched biaxially, heat set at 170‹C for a few seconds and surface treated to a corona discharge. The films are then coated with either an aqueous dispersion of a copolymer of vinylidene chloride and methyl acrylate (with or without an anchoring layer of a heat hardenable polyester resin or a vinylidene chloride: copolymer), an aqueous emulsion of a copolymer of ethylenevinyl acetate or an ethyl acetate solution of a vinyl acetate/vinyl chloride copolymer.
Patent GB-864979-A (GB)
Title: Improvements in and relating to dish washing machines
Inventor: GILSON ROBERT JOHN
IPC: A47L15/22
Filed: 1958-11-19
Abstract: 864,979. Filters. CHARLES COLSTON Ltd. Nov. 19, 1958, No. 37267/58. Class 46. [Also in Group XXIII] In a dishwashing machine in which a pump P, Fig. 1, draws liquid from a washing chamber C and feeds it to a rotary sprayer I, a filter element 20, Fig. 3, easily accessible for cleansing, is arranged in the feed between the pump P and the sprayer I. The filter 20 is disposed within the sprayer I which is of the construction described in Specification 832,756. The drive is transmitted from a rotary driving spindle S to the end cap 31 of the sprayer I through a clutch spring 50, and to obtain access to the filter the cap 31 is turned by hand to unwind partly the spring 50, whereby the sprayer I may be detached from its mounting flange 42 and removed axially. For easy removal of the filter 20, e.g. for cleaning, it is attached by a bayonet slot connection to the forward end 13 of the sprayer feed tube 11. The filter 20 may comprise a tubular structure of nylon gauze strips mounted on longitudinal ribs. An additional filter F of coarse mesh is arranged above the sump. Specification 864,978 also is referred to.
Patent GB-356055-A (GB)
Title: Improvements in or relating to tractors and trailers
IPC: B62D59/02
Filed: 1930-12-10
Abstract: 356,055. Driving-gear for tractor and trailer vehicles. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. Dec. 10, 1930, No. 37298. Convention date, Dec. 10, 1929. [Classes 79 (ii) and 79 (iii).] A tractor and trailer combination is provided with means for driving one or more pairs of trailer wheels from the tractor characterized in that immediately to the rear of the tractor change-speed gear box 2 and connected thereto is a second gear box 2 which is driven by the main shaft of the first gear box and which drives two shafts, one driving the tractor axle and the other driving one or more of the trailer axles. In the construction shown the second gear box 3 contains a driving pinion a and two larger driven wheels b, c fixed on shafts 4, 5 which drive the tractor and trailer respectively. The shaft 5 rotates at its rear end in a bearing 9 carried by a frame member 8 and is connected to the trailer driving-shaft 38 by a sliding joint 30, universal joints 28, 26, a stub shaft 18 rotating in bearings 22 carried by the trailer frame 12, a universal joint 36 and a sliding joint 38a. The double universal joint 26, 28 is housed in a ball-and-socket joint connecting the tractor and trailer, this joint being formed by a ball 8a fixed to the tractor frame member 8 and a two-part socket 10, 10a fixed to the trailer frame 12. The sliding joint 30 permits the ready removal and recoupling of the trailer shaft when the trailer is to be detached or replaced.
Patent GB-804473-A (GB)
Title: Arc lamp with air current concentration
IPC: H05B31/00
Filed: 1955-12-29
Abstract: 804,473. Arc lamps. GRETENER, E. Dec. 29, 1955 [Dec. 30, 1954], No. 37323/55. Class 39(1). Arc lamp with air concentration from the blower nozzle 2 has a rod-shaped -ve carbon 7 which is inclined to a rod-shaped +ve carbon 1 and which is rotated around its axis and fed during operation of the lamp by rollers 11 in such manner that the tip 9 is spaced from the axis 14 of the +ve carbon 1, so that the arcing spot 16 of the arc discharge 6 sits eccentrically upon the -ve carbon and the -ve carbon arcing spot is continuously moved out of the arc discharge by rotation of the -ve carbon and comes into contact with the exterior parts of the concentrated air stream. The rollers 11 are held against the -ve carbon 7 by springs 12 connected to a current connecting guide 13 and have threads 17 and axial knurling to both feed forward and rotate the carbon. The correct spacing of the -ve carbon can be maintained by means such as described in Specification 457,066 [Group XL]. The air stream from the nozzle 2 is received by the exhaust funnel 8. The +ve carbon 1 is fed by rollers 10. Specification 681,349 also is referred to.
Patent GB-902130-A (GB)
Title: Apparatus for use in applying laminar electrodes to semi-conductor members
IPC: C21D9/00
Filed: 1960-10-31
Abstract: 902,130. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. Oct. 31, 1960 [Nov. 24, 1959], No. 37374/60. Addition to 902,129. Class 37. [Also in Group XII] The invention relates to apparatus as described in the parent Specification in which metal layers are alloyed to the surfaces of semiconductor bodies by placing the bodies and metal layers in moulds in a freely suspended frame which is surrounded by a quartz tube in which alloying takes place. According to the invention, a tubular container coaxial with the quartz tube is provided into which the mould assembly may be lifted out of the furnace region. In the Figure, frame 17 carries moulds 18 containing the semi-conductor members and associated metal layers which are to undergo alloying treatment. The frame 17 is suspended from a band 21, whereby it may be lowered through hollow member 3, which is connected to an evacuating pump, into quartz tube 2 lying in a furnace. An eccentric 33 enables container 14 to be lifted away from hollow member 3 and then rotated around a pivot formed by tube 31 so that the frame may be lowered away from quartz tube 2 and recharged.
Patent GB-969414-A (GB)
Title: Thermostat
Inventor: DALES GEORGE FRANKLIN
IPC: H01H37/12
Filed: 1962-10-02
Abstract: 969,414. Thermal switches. G. F. DALES. Oct. 2, 1962, No. 37381/62. Heading H2B. A thermostatic switch comprises a heat-conductive casing 1, containing a bimetallic element 6 and an element 5 of spring metal adapted to lie against the casing, both elements carrying contacts 15, 16. The casing is staked at 12 to enable the end 9 to be bent to calibrate the switch. The bimetallic element 6 is insulated from the casing at 7, and the spring element 5 may be lacquered at 18 and the side of the casing at 17 to insulate the element 5. A screw, Fig. 4 (not shown), bearing against the element 5 may be provided for fine adjustment of the calibration of the switch.
Patent GB-523062-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1938-12-23
Abstract: 523,062. Lenses. TAYLOR, TAYLOR, & HOBSON, Ltd., and WARMISHAM, A, Dec. 23, 1938, No. 37410. Drawings to Specification. [Class 97 (i)] In a photographic objective consisting of a simple dispersive component between two simple collective components, the glass of each component has a mean refractive index higher than 1.75 and preferably higher than 1.8 ; the arithmetical sum of the radii of the front surface of the front component and of the rear surface of the rear component may be greater than the equivalent focal length of the objective and less than 1.33 times it, and the axial length of the objective may lie between 55 per cent. and 85 per cent. of the equivalent focal length. The glasses may be as described in Specification 462,304, [Group XXIII]. Numerical data for three examples are included in the Specification.
Patent GB-326821-A (GB)
Title: Improvements in or relating to blue flame oil burners
IPC: F23D3/00
Filed: 1928-12-19
Abstract: 326,821. Imber, J. Dec. 19, 1928. Wick burners, blue flame. - To increase the height of the blue flame normally obtainable from a wick burner an annular chamber i is formed wholly above the burner cone f, open on its inner side to the base of the flame. In the annular wick burner shown, the chamber j i is formed by the inwardly directed annular lips i, h of the cone f and of an auxiliary cone g detachably mounted on it. The chamber j extends above and below the plane in which air is discharged from the head of the flame spreader l, and is normally imperforate; for use, however, with a long flue it may be ventilated by perforations in the sides, the openings of which may be controlled by a rotatable perforated ring. The normal burner cone f is imperforate. To permit inspection of the top of the wick and the base of the flame the side of the chamber j may be provided with a mica-covered openings, or the whole of the upper cone may be of transparent vitreous material.
Patent GB-826532-A (GB)
Title: Improvements in or relating to compositions for treating nematodes
IPC: C07C245/08
Filed: 1957-12-03
Abstract: A nematode control composition comprises a material selected from p-phenylazoaniline and its salts with organic or inorganic acids and an inert solid carrier, e.g. talc, clay, pulverized limestone, fuller's earth, bentonite and hydrated aluminium magnesium silicate with or without a surface active agent or liquid carrier, e.g. a polar solvent, water or other liquid in which active ingredient is not soluble and a surface active agent. Concentrate compositions preferably containing at least 50% by weight of the active ingredient are also formulated.
Patent GB-765817-A (GB)
Title: Improvements in or relating to plectra for old-style musical instruments
IPC: G10C1/06
Filed: 1954-12-29
Abstract: 765,817. Plectra. NEUPERT, R. Dec. 29, 1954 [May 28, 1954], No. 37583/54. Class 88 (2). In a harpsichord or spinet a jack is fitted with a plectrum made of one of the polyamide group of synthetic resins. A pointed rod 3 of synthetic resin is inserted through a hole 4 of slightly smaller diameter in the tongue 2, the pointed end is cut off at the tongue end and the other end is tapered as at 5. When an old jack is repaired, the plectrum may be drawn through a tongue hole in a leather pad 6, Fig. 3. which remains after cutting off a leather plectrum.
Patent GB-915029-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/02
Filed: 1959-11-05
Abstract: 915,029. Overhead conveyer systems. KING Ltd., GEO. W. Oct. 31, 1960 [Nov. 5, 1959], No. 37611/59. Class 104 (2). In a conveyer system in which load-carrying trolleys are propelled along a fixed track by pusher dogs depending from an overhead driven chain, the loadcarrying trolleys are propelled along the track 10 to a transfer zone by a first driven chain 13 and are propelled away from the zone by a second driven chain 13<SP>1</SP> and at the zone any load-carrying trolley entering such zone will be transferred by a trolley 19 from driving relationship with the first chain 13 into driving relationship with the second chain 13<SP>1</SP> whilst still running along the track 10. The transfer trolley 19 runs along an auxiliary track 18, arranged to the side of the main track 10, and is movable against a weight 20 supported by a rope 21 passing round sheaves 22, 23 and attached to the trolley 19. The transfer trolley 19 carries at its forward end a laterally projecting and vertically pivotal arm 24 and at its rear end a pivotal locking arm 25 and a driving abutment 26. The device operates as follows. A load-carrying trolley on being propelled towards the transfer zone by the first chain 13 abuts and pivots, to one side, the arm 25 and moves into engagement with the arm 24, the arm 25 then pivots into its locking position behind the load-carrying trolley. The first chain 13 propels the load-carrying trolley and transfer trolley 19 forwards a short distance and then a dog on the second chain 13<SP>1</SP> engages firstly the abutment 26, to propel the loadcarrying trolley and transfer trolley forwards, and then the load-carrying trolley only. The projecting arm 24 is then moved upwards at the end of the auxiliary track section 18 by a ramp 27, Fig. 3, to free the load-carrying trolley from the transfer trolley 19 which trolley 19 is returned to its initial position by the weight 20. The chains 13, 13<SP>1</SP> may travel at different speeds. Over-running of the load-carrying trolleys at the transfer end may be prevented by a pawl and abutment device the release of which is effected by displacement of a cam by a pusher dog on the second driving chain.
Patent GB-1434495-A (GB)
Title: Pressure-sensitive record material
IPC: B01F1/00
Filed: 1974-08-29
Abstract: 1434495 Pressure-sensitive recording systems MONSANTO CO 29 Aug 1974 [30 Aug 1973] 37750/74 Heading D2B In pressure-sensitive recording systems in which colour is formed by reaction between a substantially colourless chromogenic compound and a colour developer, the reaction is effected in the presence of one or more solvents having the formula wherein Ar is a phenyl, naphthyl, or biphenyl radical, each of R1, R3 and R4 represents a hydrogen atom or a C1-4 alkyl radical, n is 0 or an integer of from 1 to 4, and R2 represents an alkyl radical and when n is greater than 1, the alkyl radicals may be the same or different, the total carbon atom content of (R2)n being not greater than 6. The solvent(s) may be used in combination with a diluent e.g. animal, vegetable, or mineral oil, aromatic naphtha, C1-12 alkyl benzene, benzyl biphenyl, or C1-6 alkyl aryl indane. The chromogenic compound may be dissolved in the solvent and the solution encapsulated. The recording systems may be one- or two-sheet systems. Conventional chromogenic compounds and colour developers are listed.