baber/WOPTO huggingface dataset:
Patent GB-1027522-A (GB)
Title: Disproportionation of siliconhalides
IPC: B01J31/26
Filed: 1962-10-02
Abstract: Halogenosilanes, e.g. Cl3SiH, are disproportionated by passing said compounds at 200-600 DEG  C. over an alumina or silicon-alumina base which has been treated with a silane compound. The silane compounds used to activate the aluminaceous base are present in amounts of from 0.1 to 10 moles per litre of the solid and have the general formula R1RnSiX3-n, wherein R1 and Rn are alkyl groups having one to five carbon atoms, X is halogen, and n is 0 to 3, but when n = 3 at least one of R1 or Rn is an alkyl group.  Specified silane compounds are <FORM:1027522/C1/1> The alumina or silica-alumina catalyst base is activated by drying at 400 DEG  C. and subsequently passing the silane compound through the catalyst mass at 100-600 DEG  C. until converted silicon compound appear in the off gas.  Examples I describes the production of a mixture of Cl2SiH2 and SiCl4 from Cl3SiH.ALSO:Silicon halides are disproportionated by passing said halides at 200-600 DEG  C. over a solid absorptive alumina or silica alumina base which has been treated with a silane compound of the general formula R1RnSiX(3- n) wherein R1 and Rn is hydrogen or a C1-C5 alkyl group, X is halogen and n is 0 to 3 provided that when n = 3 at least one of R1 or Rn is a C1-C5 alkyl group. The silicon halides used have the general formula alkmSiXnH4- (m+n), wherein X is halogen, alk is a C1-C5 alkyl group and m and n are each 1 to 3; their total not exceeding 4, and include Cl3SiH, CH3SiHCl2 and (CH3)3SiCl.  The silane compounds used to activate the catalyst base are present in amounts of 0.1 to 10 moles per litre of solid catalyst material and include (CH3)3SiH; C2H5SiH2C3H7; (CH3)2ClSiH; CH3SiCl3; (CH3)2SiCl2 and Cl3SiH.  The alumina or silica alumina base is activated by drying at 400 DEG  C. and subsequently passing the silane compound at 100-600 DEG  C. until converted silicon compounds appear in the off gas.  The examples describe the production of mixtures containing (CH3)2SiCl2, CH3SiHCl2 an Si(CH3)4.
Patent GB-1208625-A (GB)
Title: Copolymerization of carbon monoxide with alkylene oxide
IPC: C08G65/26
Filed: 1968-08-06
Abstract: 1,208,625. Hydroxy-esters. UNION CARBIDE CANADA Ltd. 6 Aug., 1968 [19 Aug., 1967], No. 37372/68. Heading C2C. [Also in Division C3] Compounds of formula where one of R and R<SP>1</SP> is hydrogen, ethyl or methyl and the other is hydrogen or a C 1-6  alkyl group, R<SP>11</SP> is hydrogen or methyl, m is 1-50 and n is equal to or greater than m are made by reacting a C 2-10  alkylene oxide with carbon monoxide in the presence of a catalyst system comprising a salt of a Group VIII metal and an amine or alkanolamine. Reaction is effected at 70-200‹ C., at a pressure of 1000-2000 p.s.i.g. and in the presence of a liquid having a high dielectric constant, e.g. dimethyl formamide, or water and/or methanol. Specified catalysts are mixtures of the chlorides or carbonates of nickel, iron or cobalt and monoethanolamine or diethanolamine. Examples describe the reaction of ethylene oxide and carbon monoxide in the presence of water to give products of M.W. 150-200 of formula
Patent GB-1388341-A (GB)
Title: Starting material and process for the preparation of d- - 2- amino-2-p-hydroxyphenyl- acetic acid
IPC: C07C227/32
Filed: 1973-08-07
Abstract: 1388341 D(-) - 2 - amino - 2 - (p - hydroxyphenyl)acetonitrile - L(+) - hemitartrate CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT 7 Aug 1973 [11 Aug 1972] 37434/73 Heading C2C The invention comprises D(-)-2-amino-2-(phydroxyphenyl) - acetonitrile - L( +) - hemitartrate and a process for its preparation whereby DL-2-amino-2-(p-hydroxy phenyl)-acetonitrile is reacted with L(+)-tartaric acid in the presence of an organic solvent such as an aromatic hydrocarbon (e.g. benzene, toluene or xylene) and/or an ester, (e.g. ethylacetate, butylacetate) and/or a ketone (e.g. methyl-ethylketone or methyl-isobutyl-ketone) and/or an alcohol (e.g. methanol or ethanol). The D(-)-2- amino - 2 - (p - hydroxy phenyl) - acetonitrile- L(+) - hemitartrate may be acid hydrolysed to produce D-(-)-2-amino-2-(p-hydroxy phenyl)- acetic acid and salts thereof.
Patent GB-1396257-A (GB)
Title: Centre drilling machine
IPC: B23B49/04
Filed: 1973-08-07
Abstract: 1396257 Drilling machines; beds and frames; workholders HADADY MACHINING CO Inc 7 Aug 1973 [21 Dec 1972] 37472/72 Headings B3C and B3B A centre-drilling machine comprises a frame 11, 12, a parallelogram linkage 20, 31, 32, 18 and a plate 34 for supporting a drill 35. The bar stock to be drilled is mounted in V-blocks 15, 16, the linkage is pivoted about pivots 21 by fluid pressure cylinders 26 until a clamp 24 abuts the top of the bar stock and clamps the latter in the V-blocks and the hydraulic drill 35 is fed through plate 34 by a rack and pinion 36, 37, so that drill bit 44 operates on the bar stock. Clamp 24 is free to pivot so as to be capable of clamping work stock at different diameters and drill bit 44 remains horizontally in alignment with any such stock due to the parallelogram linkage. Twisting of clamp 24 is prevented by a vertical bar 45 fixed to plate 34 and to a pair of horizontal bars 46. Twisting of drill 35 is prevented by two plates 42 connected through plate 34, by rods 43.
Patent GB-967507-A (GB)
Title: Improvements in and relating to magnetic core structures
Inventor: ROSE KENNETH
IPC: H01F17/04
Filed: 1961-10-19
Abstract: 967,507. Transformers and inductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 19, 1962 [Oct. 19, 1961], No. 37556/61. Heading H1T. A magnetic core structure consists of a cylindrical part 2 (Fig. 1) closed at one end, the other end being closed by part 4, one or other of these parts having a central core member 3 projecting either to contact the other part or to leave a small air gap after assembly, and the cylindrical part 2 has at least one longitudinal slot 9 for conductor egress. Parts 2, 3 and 7 have axial holes (6 and 7) which align an assembly to carry a bolt for fixing to a base board. The structure may be of ferrite and acts as an electromagnetic screen as well as forming the magnetic circuit. The coil may be wound on a former 8, or directly on the member 3, or on an insulating sleeve on member 3, and the winding may be carried out with the part carrying core 3 or former 8 in situ in an apparatus as described in Specification 967,510.
Patent GB-889189-A (GB)
Title: Improvements in or relating to electric control circuits
IPC: G05F1/42
Filed: 1958-11-21
Abstract: 889,189. Automatic control systems for highfrequency heaters. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 21, 1958 [Nov. 26, 1957], No. 37561/58. Class 38 (4). In a circuit for controlling an alternating current, particularly of high frequency, whereby a voltage dependent on the current is applied to the cathode of a thermionic tube such as a diode, the anode circuit of which is connected to an amplifier correcting any variation of the current, to operate the diode at a preferred point on its characteristic and to stabilize the circuit, a voltage of another frequency is injected into the cathode circuit. The high-frequency current flowing in a conductor 1 induces a current in a winding 2 connected across a resistor 3 and the cathode of the diode 4. In series with the cathode is a capacitor 11 across which is applied a low-frequency voltage from a supply mains through a transformer 9, 10 and a positive temperature coefficient resistor 12 which maintains the L.F. current constant. Adjustment of current is made through a second transformer 13, 14 and a variable resistor 15. A D.C. control voltage is applied to the amplifier 16 from a smoothing network 6, 7 fed from a transformer 5, 8 through the diode 4. Variation of current in conductor 1 alters the thermionic emission of diode 4, hence the voltage applied to the amplifier 16, which acts to maintain the current in the conductor 1 constant.
Patent GB-820197-A (GB)
Title: Improvements in and relating to shuttlecocks and rackets
IPC: A63B67/187
Filed: 1957-12-03
Abstract: 820,197. Shuttlecocks; badminton rackets. ROTEL A. G. Dec. 3, 1957 [Dec. 5, 1956], No. 37653/57 Classes 132(2) and 132(3) To facilitate the picking up of a shuttlecock by a racket, the shuttlecock or the racket is provided with a permanent magnet for co-action with a magnetic member in the racket or shuttlecock, as the case may be. In Fig. 1, a shuttlecock having a rubber or cork base 1 is provided with a ring 2 of magnetic metal for coaction with a permanent magnet 4 located in the frame 3 of a racket which may be of plastic. Fig. 3 shows a modified shuttlecock base having a magnetic metal core 5. The shuttlecock and racket may both be provided with a magnet. The handle of the racket may be in one piece with, or spliced into, the frame, which may be of wood
Patent GB-1193240-A (GB)
Title: Purifying Polycarbonates
Inventor: OHME HOWARD RUSSELL
IPC: C08G64/40
Filed: 1968-08-07
Abstract: 1,193,240. Purifying polycarbonates. PPG INDUSTRIES Inc. 7 Aug., 1968, No. 37685/68. Heading C3R. Purified polycarbonates are obtained by washing a solution of an organic nitrogen catalyst contaminated aromatic polycarbonate in a water immiscible organic solvent with an aqueous solution of CO 2 , at a pH above 2 and below 4À5, to remove the catalyst, separating the organic phase and recovering the polycarbonate from the organic phase without further washing. Comprehensive lists of catalysts and starting materials from which the polycarbonate may be prepared are given. The polycarbonate may be recovered from the solution by precipitation with a non-solvent or by controlled removal of solvent and extrusion of solute in the molten state. In an example, the solution purified was one obtained by reacting bisphenol-A, phenol and phosgene in the presence of aqueous NaOH solution and methylene chloride, reacting the product with piperazine and thereafter polymerizing in the presence of triethylamine.
Patent GB-1032639-A (GB)
Title: Method and apparatus of producing welded double glazing units
IPC: C03B23/24
Filed: 1964-09-16
Abstract: In the manufacture of multiple glazing units by welding a pair 25 of glass sheets 68, 70 at their edges, the larger, top, sheet 70 having connecting longitudinal stripes of conducting material adjacent each margin which are thereby heated so that the margins sag down into contact with and are welded to the lower sheet 68, the lower sheet 68 is supported centrally by a platen 74 and marginal portions of the sheet 68 are supported in the same plane at locations spaced from each other, as at each corner, by blocks 84.  The apparatus disclosed is substantially that described in Specification 978,709.  Reference has been directed by the Comptroller to Specification 978,709.
Patent GB-1113382-A (GB)
Title: Novel pyrimidine derivatives and their preparation
IPC: C09B51/00
Filed: 1966-08-23
Abstract: <FORM:1113382/C2/1> Novel compounds of Formula I, in which R is a C1- 4 alkylthio, amino, C1- 4 alkylamino, di-(C1- 4 alkyl) amino or C1- 4 alkanoylamino group and R1 is a hydrogen atom or a C1- 4 alkyl group are prepared by condensing 5-nitrofurfural, or its diacetate, with a compound of the Formula II, preferably in the presence of a dehydrating agent.  When an anhydride of a carboxylic acid of 1-4 carbon atoms is used as the dehydrating agent, compounds in which R is a C1- 4 alkanoyl-amino group are obtained from starting materials in which R is NH2.  The compounds in which R is an alkanoylamino group are also obtained by acylating the corresponding amino compounds.  The compounds in which R is an amino group may be obtained by hydrolysis of the corresponding acylamino compounds.
Patent GB-506378-A (GB)
Title: Improvements in and relating to liquid heaters
IPC: F24H9/20
Filed: 1938-12-30
Abstract: 506,378. Fluid - actuated valves. JUNKERS & CO., GES. Dec. 30, 1938, No. 37841. Convention date, Dec. 30, 1937. [Class 135] [Also in Group XIII] In the liquid supply pipe of an instantaneous liquid flow heater, a throttle point 15 is located in front, viewed in the direction of liquid flow, of a Venturi tube 12, and between them is placed a guiding device 16 comprising a folded metal strip acting as a flow regulator and dividing the liquid from the throttle into uniformly directed streams which re-unite to form a combined jet flowing axially of the Venturi tube. Water flows through a throttle orifice 15 with a screwed adjustable member 15<1>. A spring- pressed gas valve 25 is connected by a spindle 24 to a diaphragm 18 dividing a casing 17 into two chambers 19, 20; the upper chamber 19 is connected through a pipe 21 with the neck of the Venturi tube, and the lower chamber is connected through a pipe 22 with the water supply at a point beyond the throttle 15'. The gas valve is opened by movement of the diaphragm on opening a hot water outlet tap 30.
Patent GB-626731-A (GB)
Title: Improvements in or relating to apparatus for playing a board game
IPC: A63F3/00
Filed: 1946-12-24
Abstract: 626,731. Board games. D'ARCY, L. S. Dec 24, 1946, No. 37879. [Class 132 (ii)] A board game simulating greyhound racing comprises a board 11 marked with an oval track 10 over which pieces are moved in accordance with a chance indicator, two sets of cards being provided, one for penalties and one for starting handicaps. The inside of the track 10 is marked with squares 18 on which bets may be placed. The board may be folded.
Patent GB-1304649-A (GB)
IPC: C07D451/02
Filed: 1971-08-12
Abstract: 1304649 Nortropane derivatives A H ROBINS CO Inc 12 Aug 1971 [31 Aug 1970] 37953/71 Heading C2C Novel 3α- and 3#-arylnortropane derivatives of the formula wherein R<SP>1</SP> is H, C 1-8  alkyl, phenyl, trifluoromethylphenyl or C 1-8  alkoxyphenyl and R<SP>2</SP> is H, CF 3 , C 1-8  alkyl or C 1-8  alkoxy are prepared by reacting the corresponding 3α- or 3#-phenyl- (or monosubstituted phenyl) nortropane with nitrourea, or isocyanates of the formula R<SP>3</SP>NCO, in which R 3  is C 1-8  alkyl, phenyl, trifluoromethyl phenyl or C 1-8  alkoxyphenyl. 3α - Phenyl - (or R<SP>2</SP> - phenyl) - nortropanes are obtained by hydrogenating the corresponding 3 - phenyl - (or R<SP>2</SP> - phenyl) - nortropidines, made by dehydrating the appropriate 3-phenyl- (or R<SP>2</SP>-phenyl)-nortropanols resulting from the hydrogenolysis of the corresponding 8-benzyl-3- phenyl- (or R<SP>2</SP>-phenyl)-nortropanols, which are prepared by reacting the appropriate phenylmagnesium bromide with 8-benzyl-3-nortropanone. 3# - phenyl - (or R<SP>2</SP> - phenyl) - nortropane are prepared from the corresponding 8-cyano-3#- phenyl - (or R<SP>2</SP> - phenyl) - nortropanes, obtained by reacting cyanogen bromide with the appropriate 3#-phenyl-(or R<SP>2</SP>-phenyl}-tropane resulting from the treatment of the corresponding 3#- phenyl-(or R<SP>2</SP>-phenyl)-tropines with Raney nickel catalyst in lower alkanols. Pharmaceutical compositions suitable for oral administration, contain the above novel compounds in admixture with suitable carriers or diluents. The compounds possess anticonvulsive activity.
Patent GB-817727-A (GB)
Title: Improvements in or relating to gas/liquid contacting columns
IPC: B01D3/18
Filed: 1956-12-12
Abstract: 817,727. Contacting gases with liquids. BATAAFSCHE PETROLEUM MAATSCHAPPIJ N.V., DE. Dec. 12, 1956 [Dec. 14, 1955], No. 37986/56. Class 55 (2). A gas-liquid contact column has at least one tray formed of sections and one or more longitudinal supports suspended within the column, some or all of the sections of the tray being supported at their corners by not more than two longitudinal supports and by adjacent sections and/or a support or supports on the wall of the column, those sections, if any, not having longitudinal supports being supported by adjacent sections and/or a support or supports on the walls of the column. As shown in Fig. 1 the tray comprises four sections supported by collars on a longitudinal support 5 and a supporting ring (not shown) secured to the wall of the column. In the arrangement of Fig. 3 those sections 16 and 18 adjacent the wall of the column are partly supported by supports on the wall of the column and partly by longitudinal supports 17 or connections to other sections as shown at 19 and 22. Sections 20 and 23 are supported partly by the supports 17 and by connections to other sections as shown at 21 and 24. Section 25 is supported solely by connections to the plates 20 as shown at 26. The connections between the sections may be as described in Specification 817,728. In the modification shown in Fig. 4 the sections are supported by wall supports, two transverse beams 29 and six longitudinal supports 31. The longitudinal supports may be common to a plurality of superposed contact trays.
Patent GB-956749-A (GB)
Title: Process for the production of rolled filaments and apparatus useful therefor
Inventor: LEFEVRE LLOYD EDWARD
IPC: D02G3/06
Filed: 1962-10-09
Abstract: 956,749. Rolled filaments. DOW CHEMICAL CO. Oct. 9, 1962, No. 38144/62. Heading B5B. [Also in Divisions B8 and D1] Rolled filaments having an involute crosssection are made by passing a continuous, flat, flexible ribbon of less-than-fully oriented organic thermoplastic into a first guide means and removing it therefrom in such a manner that the direction of travel is deflected through an acute angle, passing the ribbon into a second guide means disposed approximately parallel to the first guide means and removing it therefrom in a direction of travel substantially parallel to and finitely displaced from the direction of travel of the ribbon entering the first guide means. The first and second guide means impart between them a torque to roll the ribbon laterally into a filament, while maintaining sufficient longitudinal tension on the ribbon to impart orientation to the filaments. The first and second guide means may comprise a first roller having at least one circumferential U-shaped groove and a second roller having at least one circumferential V-shaped groove having a curved apex. In one embodiment (Fig. 1) a ribbon 10 (e.g. of a homopolymer or copolymer of vinylidene chloride) passes over comb or roll 11, via snubbing rolls 12 into a groove in roll 13. The ribbon then passes into a groove in roll 14 so located that the path of the ribbon is deflected (e.g. 7-14 degrees), and thence, via snubbing rolls 15 to collecting means 16. Snubbing rolls 15 are operated at higher peripheral speed than snubbing rolls 12. The resulting filament has a cross-section as shown in Fig. 2. A plurality of ribbons may be treated simultaneously when several grooves are provided in rolls 13 and 14. The ribbons or filaments may be heated during at least a part of the operation, e.g. by heating snubbing rolls 12, 15 or guide rolls 13, 14. In a further embodiment (not shown), the ribbon is rolled around a core of, e.g. fibreglass or polyethylene, to produce a composite filament (see Division B8)
Patent GB-1003645-A (GB)
Title: Indolo-indolizine compounds
Inventor: GOOTJES JOHAN
IPC: C07D471/14
Filed: 1962-10-09
Abstract: The invention comprises endolo-indolazine compounds of the general formula <FORM:1003645/C2/1> wherein R is alkyl containing 1 to 5 carbon atoms and the process of preparation thereof, including the case where R is hydrogen, which comprises the reduction by sodium borohydride of a quaternary salt of formula <FORM:1003645/C2/2> wherein R is hydrogen or C1 to C5 alkyl, and X represents the anion of a monobasic acid.  The quaternary salt of the above formula is prepared by Bischler and Napieralski method of cyclising an indolylethylpyrrolidone of general formula <FORM:1003645/C2/3> wherein R is H or C1-C5 alkyl.  The indolylethylpyrrolidones of the above formula are prepared by condensation of tryptamine with a gammahalobutyric acid alkyl ester, which may carry an alkyl substituent containing 1 to 5 carbon atoms on the methelene chain, in the presence of a basic condensing agent e.g. potassium carbonate in an inert solvent.ALSO:The invention comprises pharmaceutical compositions containing an inert pharmacologically acceptable carrier and at least one indolo-indolizine derivative of general formula <FORM:1003645/A5-A6/1> wherein R is hydrogen or alkyl containing 1 to 5 carbon atoms, for oral and parenteral administration the said compositions having a sedative action.
Patent GB-964004-A (GB)
Title: Improved oxymethylene polymers
IPC: C08K5/29
Filed: 1960-11-09
Abstract: Oxymethylene polymers are stabiiized by incorporating therein an amidine compound.  The oxymethylene polymer may also contain chains of oxyalkylene units containing more than one carbon atom e.g. oxyethylene units, the oxymethylene units forming from 60 to 99.6 mole per cent of the units in the polymer molecule. Specified amidine compounds are cyanoguanidine, substituted cyanoguanidines, polyaminotriazoles, amino substituted triazines e.g. melamine and guanamines and imidazolines-long lists are given.  Other additives specified are vinyl polymers containing the structure -CO-H = e.g. polymers or copolymers of vinyl pyrrolidone, acrylamide, N-vinyl caprolactam, N-vinyl piperidine, N-vinyl acetanilide, and N-methyl-N-vinyl acetamide are among those listed, proteins e.g. gelatine glue, casein, albumens, globulins, glutelins, and keratins, and phenolic stabilizers such as alkylene bis phenols. Specifications 612,609 and 627,124 are referred to.
Patent GB-819973-A (GB)
Title: Improvements in and relating to rotating cutter assemblies for coal mining and like machines
Inventor: PARTINGTON ALAN
IPC: E21C25/08
Filed: 1956-12-17
Abstract: 819,973. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. Dec. 11, 1957 [Dec. 17, 1956], No. 38460/56. Class 68(1) Endless, pick-carrying chains 12 circulate about a non-circular rotor 10 rotatably mounted on a horizontal rotating shaft S projecting from the body M of the mining machine sliding along on a face conveyer A. The chains 12 and rotor 10 are driven from the shaft S through either epicylic gearing or to associated gear wheel trains. The gearing is such that the speed of rotation of the rotor is less than the speed of the chains. Specification 744,959 is referred to.
Patent GB-969046-A (GB)
Title: Improvements in or relating to apparatus for spinning fibrous material
IPC: D01H4/08
Filed: 1961-10-27
Abstract: 969,046. Spinning machines; twist-tubes. J. MEIMBERG. Oct. 27, 1961 [Oct. 28, 1960], No. 38582/61. Heading D1D. In a spinning apparatus, continously fed fibre mat is opened into separate fibres which pass to a rotating drum and are drawn therefrom and twisted. The drum comprises an inwardly directed annular groove for receiving the fibres, ports so arranged that the passage of air therethrough will ensure uniform deposition of fibres in the groove, and "combing" members e.g. needles or teeth, inclined at an angle to the drum radius. As shown, fibre 1, opened by passage through input and delay or drawing wheels 2 and 3 rotating at different speeds, passes to a spinning drum 4 at the point 5. Apertures in the drum create a suction effect (which may be augmented, at least at the start of the spinning operation, by a fan) to draw the fibres into the drum and deposit them among retaining needles. The spun strand 13 is withdrawn through guide 6,a false-twist tube 7,the temporary twisting action of which is used to control the fibres, to removal rollers 8 e.g. of a winder, ring-twisting spindle or a further processing machine. The drum 4 and twist tube 7 may be driven jointly (as by one band passing over discs 10 and 11 on a driving shaft 9) or individually, in the same direction or in opposition. The "combing" members may be angled forwards or backwards relative to drum rotation: the ports and needles in the drum 4 may be replaced by Spaced, toothed waves, Fig. 3, (not shown).