baber/WOPTO huggingface dataset:
Patent GB-796069-A (GB)
Title: Substituted hydantoins
Inventor: WARING WILSON SHAW
IPC: C07D235/02
Filed: 1955-12-23
Abstract: The invention comprises substituted hydantoins of the general formula <FORM:0796069/IV (b)/1> wherein R1 and R2 represent hydrogen or methyl, ethyl or aryl radicals, and one of R3 and R4 represents hydrogen and the other a methyl or ethyl radical, and the preparation thereof in the case where R3 represents hydrol gen and R4 represents a methyl or ethyradical by alkylating hydontoin compounds of the general formula <FORM:0796069/IV (b)/2> wherein R1 and R2 have the above significance and in the case where R3 represents a methyl or ethyl radical and R4 represents hydrogen by reacting an hydrindene compound of the general formula <FORM:0796069/IV (b)/3> wherein R1 and R2 have the above significance and R3 represents a methyl or ethyl radical, and cyanic acid and hydrolysing the product in an acid medium, e.g. aqueous mineral acid such as aqueous hydrochloric acid. The latter process may be modified in that the hydrindene reactant is prepared by reacting the correponding a -hydrindone cyanohydrin and methylamine or ethylamine, e.g. a -hydrindone cyanohydrin itself may be reacted with methylamine.  The alkylation step in the first process referred to above may be carried out with an alkyl sulphate, e.g. dimethyl sulphate, preferably in the presence of an aqueous or aqueous alcoholic alkaline medium such as aqueous alcoholic sodium hydroxide, or an alkyl halide, e.g. methyl or ethyl iodide, preferably in an alcoholic medium containing an alkali metal alkoxide such as an ethanolic metium containing sodium ethoxide. The latter process may also be modified in that the hydantoin reactant may be used in the form of a salt thereof such as the hydrochloride salt, and the cyanic acid is then used in the form of an alkali metal cyanate such as sodium cyanate.  In the examples, 31-methylspirohydrindenyl - [1 : 51] - hydantoin, and the corresponding 1-methyl-, 31-ethyl-3 : 31-dimethyl-, 2 : 31-dimethyl- and 3-phenyl-31-methyl-compounds are prepared.  Starting compounds. a -Hydrindone cyanohydrins of the general formula <FORM:0796069/IV (b)/4> wherein R1 and R2 have the above significance, are prepared by reacting the required a -hydrindone and hydrogen cyanaide or an alkali metal cyanide, e.g. sodium cyanide, in an aqueous medium. 2-Methylspirohydrindenyl-[1 : 51]-hydantoin is prepared by reacting 2-methyl-a -hydrindone, potassium cyanide and ammonium carbonate in aqueous ethanol, followed by acidification. 3-Phenylspirohydrindenyl-[1 : 51]-hydantoin is prepared by a similar method.
Patent GB-619608-A (GB)
Title: Improvements relating to paper bags
IPC: B65D30/18
Filed: 1946-12-16
Abstract: 619,608. Paper bags. BIBBY & BARON, Ltd., and BARON, A. J. Dec. 16, 1946, No. 36988 [Class 94 (ii)] In the production of satchel or nose type bags, the strip of paper e is pasted on areas such as a, b, c which, when the bag is folded, come to the insides of the two triangular wing-like parts f, g at the bag bottom so that the two plies in each wing are stuck together. The faces of the triangles f, g are afterwards secured by adhesive h arranged as shown, or by triangular-shaped areas and strips on each side of the bag joint. The adhesive may be of a dry type which seals under pressure or heat application, or ordinary adhesive may be used.
Patent GB-823187-A (GB)
Title: Improvements in or relating to the manufacture of photoconductive materials
Inventor: WOODS JOHN
IPC: H01L21/00
Filed: 1956-12-04
Abstract: 823,187. Photo-conductive materials. GENERAL ELECTRIC CO. Ltd. Dec. 4, 1957 [Dec. 4, 1956], No. 37048/56. Class 37. A method of making a photo-conductive material comprises mixing cadmium sulphide powder, cadmium chloride and a copper bearing substance, the proportion of cadmium chloride being 0.5-12% (preferably 2%) and the proportion of copper being 0.06-0.12% (preferably 0.09%) by weight with respect to the cadmium sulphide, and heating the mixture in an inert atmosphere at 550-800‹ C. long enough to sinter and activate the cadmium sulphide powder. In one embodiment pure cadmium sulphide is sieved, heated to 700‹ C. for ¥ hour in argon, cooled to room temperature and washed and then added to an aqueous solution of hydrated copper sulphate and cadmium chloride to form a suspension, the quantity of copper and cadmium chloride in the suspension being within the limits specified above. The suspension is oven dried at 75‹ C., ground and sieved and then heated to 700‹ C. in argon for an hour to form a sintered pellet which is crushed to a powder by a sharp hammer blow. The product is washed in water, dried at less than 80‹ C. and sieved to form a powder suitable for use in photo-conductive cells. Single crystals of cadmium sulphide for use in small cells may be prepared by incorporating them in the powder formed by drying the suspension prior to the heating and recovering them when the sintered pellet is crushed. To test the powder it may be spread over the narrow gap between a pair of copper foils stuck to a glass plate and another glass plate clamped over the first plate to locate the powder. A photo-conductive mass may also be made by spreading the suspension over a quartz disc and heating as before to form a sintered layer firmly bonded to the disc. Parallel strips of silver paint may then be applied to the surface of the layer and alternate pairs connected electrically to form the electrodes of a photo-conductive cell.
Patent GB-1199193-A (GB)
Title: Improvements in or relating to Electrostatic Copying
IPC: G03G13/10
Filed: 1967-08-11
Abstract: 1,199,193. Electrophotographic element. A. B. DICK CO. 11 Aug., 1967 [11 Aug., 1966], No. 37092/67. Heading H1K [Also in Divisions G2-G3] An electrophotographic element comprises a conductive paper base having on one side a thin flexible continuous insulating layer containing ZnO and on the other side a continuous flexible coating having a resistivity of not more than 1 x 10<SP>9</SP> ohms per square which acts as a barrier to the passage of liquid. Preferably the paper contains a polyhydric alcohol humectant and a metal salt (e.g. Na formate, NH 4 Cl or KCl) to increase conductivity. The barrier layer may comprise polyvinyl alcohol or acetate, casein an alginate or carboxymethyl cellulose, preferably containing a plasticizer (e.g. glycerine or ethylene glycol) and/or a metal salt (e.g. NH 4 Cl, KCl or BaSO 4 ).
Patent GB-841138-A (GB)
Title: Improvements in or relating to clippers for hedges and like plant growths
IPC: A01G3/053
Filed: 1955-12-28
Abstract: 841,138. Hedge cutters ; mowers. KAYE, E., SHARP, J. R., and WRIGHT, E. J. Dec. 20, 1956 [Dec. 28, 1955], No. 37172/55. Classes 6(2) and 6(3). [Also in Group XXXI] A hedge or lawn clipper comprises two toothed blades, one stationary and one reciprocable, the latter being urged towards one end of its stroke by a spring and being drawn back by a single, flexible cable which is operated by suitable driving means, such as the driving shaft of a motor-driven cultivator of the type described in Specification 803,111. The clipper comprises a hollow handle 11 to which is fixed the blade 13, and through which the shank of the reciprocable blade 16 extends to be connected to one end of a flexible cable 24. The cable 24 passes from the handle 11, through a sheath 28, and is attached at its other end to a slotted cross-head 33 which is slidable within a drum-shaped casing 31 attached to the frame of the cultivator referred to above. The cross-head is reciprocated by a slider 43 mounted on a crank pin 42 which is rotated by means of the driving shaft 41, which in turn is driven from the driving shaft of the cultivator. In operation, reciprocation of the cross-head in one direction pulls the movable blade 16 towards the handle 11, the return stroke being effected by a spring 25 mounted within the handle. The teeth of the two blades are provided with cutting edges 15 and 20 respectively on one side only, the other side being sloped, so that as the blade 16 is drawn towards the handle the two sets of cutting edges co-operate to effect a cutting action, and during the return stroke of the blade the inclined edges 14 and 21 of the teeth tend to push out any material which may have been caught between them.
Patent GB-1078719-A (GB)
Title: A process for the preparation of neomycin salts
IPC: C07H15/232
Filed: 1964-09-14
Abstract: New neomycin consisting of N moles of anions of a hydroxypolycarboxylic acid having from 4 to 6 carbon atoms, L moles of calcium cations and M moles of neomycin cations, M, N and L being related according to the equation n.N - 2L=k.M, where n represents the basicity of the polycarboxylic acid and k is an integer from 1 to 6, may be prepared by contacting neomycin or its hydrochloride and a calcium ion donor, e.g. Ca(OH)2 or CaCl2, with the hydroxypolycarboxylic acid or its alkali metal salt in an approx. molar ratio of M:L:N in an aqueous medium at approx. neutral pH.  The hydroxypolycarboxylic acid or its salt may be reacted with the calcium ion donor and the reaction mixture thus obtained further reacted with neomycin. Examples give the preparation of neomycin26+ [(citric acid3-)2Ca2+]3 and neomycin6+-[(maleic acid2-)2Ca2+]3.  A pharmaceutical composition contains the above neomycin salts and a carrier and may be in the form of tablets, powders, granules, syrup, ointment or enteric coated tablets.
Patent GB-992925-A (GB)
Title: Improvements in or relating to facsimile recorders
Inventor: COOLEY AUSTIN GEORGE
IPC: H04N1/16
Filed: 1962-10-05
Abstract: 992,925. Copying telegraphy. LITTON INDUSTRIES Inc. Oct. 5, 1962, No. 37747/62. Heading H4F. The marking members 16 of a facsimile recorder of the type which operates with a pressureresponsive recording medium is constructed so that only a part of the member need. move to make a recording, means being provided for applying pressure to move the member only at that part which at any instant is required for recording. Thus the member may be made flexible by forming in it a series of slots 18, Fig. 3, and it may be mounted on an armature 17 having similar slots 19 which forms part of an electromagnet system having a series of core member 22, Fig. 5, disposed at intervals along the armature. The cores are associated with coils 25 and by energizing an appropriate coil or small group of coils pressure may be applied to only a part of the marking member. As shown in Fig. 5, the coils are wound so as to embrace groups of three cores (the part coils 25a and 25c at one end being connected in series respectively with the similar part coils 25b, 25d at the other end so as to preserve symmetry) and a commutator system 30-35, Fig. 6, is employed to apply signals for recording to the coils in a group of five which is progressively traversed along the assembly. Fig. 7 illustrates an alternative arrangement utilizing a rotary inductive distributer having a stator 39 wound with coils 43 connected to the individual recorder coils 25 via full wave rectifiers 45, 46 and a rotor 42 having a pole 40 with a winding 41 which receives alternating current signals to be recorded. The rotor may have a second wound pole connected in series or parallel with winding 41. According to a modification (not described in detail) the marking member may be formed of a series of unattached elements. The member co-operates with a helical marking element 11 carried by a drum 12, Fig. 2, the rotation of the distribution arrangements shown in Figs. 6 and 7 being synchronized with the drum rotation. Since only a part of the marking member 15 is in use at any instant the helical element 11 may be formed with more than one turn. As an alternative to a helical element, a narrow anvil traversed at scanning speed may be utilized. Specification 898,769 is referred to in connection with the construction of the electromagnet system.
Patent GB-979573-A (GB)
Title: Improvements in bolted joints between metal members
Inventor: KELLY DAVID ARTHUR
IPC: B21J15/02
Filed: 1962-10-05
Abstract: 979,573. Bolting; locking nuts. BRITISH INSULATED CALLENDER'S CONSTRUCTION CO. Ltd. Oct. 7, 1963 [Oct. 5, 1962], No. 37784/62. Addition to 832,513. Heading F2H. [Also in Division B3] A cold - setting resin composition is injected by a syringe or flexible bottle into a bolted joint, through a hole 8 in a bolt or nut into the space between the bolt shank 9 and the walls of the bolt holes in members bolted together, after the joint has been at least partly tightened. For the resin composition, the epoxypolyamide mix with aluminium powder of the parent Specification is mentioned and also an epoxy resin. When set, it is said at least to reduce relative transverse movement of the bolt and joined members and to adhere to the metal. It may have flowed into the space between the members and that between the nut and bolt threads. The composition constituents may have been separated by a rupturable membrane in a container before use, the membrane being broken by squeezing the closed container just before injection. As shown, the bolt has a head and the hole 8 with countersunk inlet extends parallel to the bolt axis with its axis aligned with the surface of the sgank 9 to open partly in the head undersurface and partly in the shank. Specification 894,361 also is referred to.
Patent GB-1403540-A (GB)
Title: Pulse generator
IPC: H03K3/59
Filed: 1972-08-14
Abstract: 1403540 Hall effect displacement encoder VEEDER INDUSTRIES Inc 14 Aug 1972 [27 Sept 1971] 37833/72 Heading G1N A displacement encoder produces relative movement between one or more Hall sensors and a plurality of ferromagnetic poles arranged so that the direction of the magnetic field at the sensor is continually reversed as a result of the movement. In a first embodiment (Figs. 1 and 3) two Hall sensors 18 are mounted between two annular rings 26 each comprising annular segments of alternating polarity, angularly spaced so that like poles are above each other (Fig. 3). The magnet rings are covered by ferromagnetic annular caps 40 to provide a low reluctance flux path between adjacent magnets. The magnets rotate about axis 16 and alternating output is derived from leads 52 when D.C. is applied to leads 51 of the Hall sensor. The number of sensors and the angular size of the magnet may be altered to change the resolution of the device and the outputs from the different sensors may be suitably combined.
Patent GB-640707-A (GB)
Title: A method of establishing provisional electric light and/or power service lines and means for carrying such method into effect
IPC: H01R31/06
Filed: 1946-12-24
Abstract: 640,707. Installation wiring. HAVLICEK, J. Dec. 24, 1946, No. 37837. Convention date, Oct. 24, 1941. [Class 38 (iv)] A temporary lighting or power installation is built up of elements, such as cable lengths, fuse boxes, junction boxes, switches and lighting fittings, which are preformed with integral plugs and sockets whereby the different elements may be connected together as required. The elements are each formed with a rubber sheath so arranged that not only the elements themselves but also the plug and. socket connections are water-tight.
Patent GB-890617-A (GB)
Title: Improvements in and relating to thermionic electric generators
Inventor: GABOR DENNIS
IPC: H01J45/00
Filed: 1959-11-10
Abstract: 890,617. Thermionic engines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 7, 1960 [Nov. 10, 1959], No. 38030/59. Class 39(1) [Also in Group XL(c)] A thermionic electric generator comprises an electron emissive electrode 1, at least two collector electrodes A 1 , A 2  and a low pressure vapour filling. Steady and alternating magnetic fields are provided in such manner that these fields reinforce one another in the region between electrodes 1 and A 1  and neutralize one another between electrodes 1 and A 2  in one half cycle of the alternating magnetic field and vice versa in the other half cycle, whereby electron current flow from the emissive electrode is directed alternately towards one and the other of the collector electrodes. As shown, current equal to the sum of the currents I 1 , I 2  received at electrodes A 1  A 2  is fed from a centre tap of the primary winding of a transformer Tr through coils 6, in one direction adjacent A 1  and in the opposite direction adjacent A 2 , to provide the steady magnetic field, and to both ends of electrode 1. Current proportional to I 1 -I 2  is induced in the secondary winding of the transformer Tr and is fed through coils 7 to produce the alternating magnetic field. To make the device oscillate at a desired frequency a condenser C is introduced in parallel or in series with the load across which the output is obtained. As shown in Fig. 5, the device may comprise two sets of collector electrodes 2, 3, the electrodes of each set being interconnected by metal strips 13a, 13b and insulated from the electrodes of the other set by glass solder 11. The emissive electrode 1 is protected from the corrosive action of the flame gases, by which it is heated to 1500‹C., by a ceramic tube 9, and is provided with radial vanes 8 coated with emissive material. The D.C. winding 6 is formed out of a single sheet of metal cut into a meander pattern and is surrounded by the A.C. winding 7 in the form of a continuous coil. The envelope of the device, which may contain an alkali metal vapour, e.g. Cs, Rb, K or Fr, is completed by thin elastic metal members 5 which, allow for expansion of cathode 1. The collector electrodes may have oxidized silver surfaces and are cooled to 100-180‹C. In an alternative device, Fig. 6, the collector electrodes 2, 3 are interwound helices which can be used to provide the function of the A.C. coil 7. As shown, the device is secured to the walls 17, 18 of a cooling chamber. If desired, the device may be inverted, the heat source being outside and the coolant inside. If the load is constant the D.C. winding 6 may be replaced by a system of permanent magnets. Also, a uniform D.C. magnetic field could be used with A.C. windings connected in anti-phase as between one emitter/collector gap and the next.
Patent GB-1017656-A (GB)
Title: Improvements in and relating to golf clubs
IPC: A63B53/04
Filed: 1964-09-17
Abstract: The head of a golf club comprises one or more holes in its striking face.
Patent GB-1098696-A (GB)
Title: Benzoazadithian compounds
IPC: C07D285/15
Filed: 1965-09-07
Abstract: Novel benzodithians of the formula <FORM:1098696/C2/1> and physiologically acceptable salts thereof, wherein R1 is hydrogen, halogen, trihalomethyl, C1- 5 alkyl, C1- 5 alkoxy, nitro or amino; each of R2 and R3 is hydrogen, C1- 5 alkyl, C1- 5 haloalkyl, cycloalkyl having 5 or 6 carbon atoms in the ring, cycloalkyl-alkyl, mononuclear aryl (e.g. phenyl), halo-, alkyl- or alkoxy-substituted phenyl, halogen-substituted cycloalkyl or cycloalkyl-alkyl, a mononuclear aryl-substituted C1- 5 alkyl group in which the alkyl radical may be interrupted by heteroatoms or may bear halogen substituents and in which the mononuclear aryl radical may be phenyl or an alkyl-, alkoxy- or halogen-substituted phenyl radical, or R2 and R3 may together form a spiro ring which may contain hetero atoms and may bear alkyl or halogen substituents and R4 and R5 may be hydrogen, C1- 5 alkyl, halo- or alkoxy-substituted C1- 5 alkyl or C2- 5 alkenyl are made by condensing a 2,4-disulphamoyl-mercapto-benzene with a ketone or aldehyde R2.CO.R3 or with a corresponding acetal or ketal R2R3C(OR6)2 in which R6 is an alcohol residue.  2,4 - Disulphamoyl - mercaptobenzenes are made by heating the corresponding 2,4-disulphamoyl halobenzene with sodium polysulphide. Pharmaceutical preparations having diuretic and saluretic properties comprise the above compounds of the invention and a diluent, extender, binder and/or lubricant, suitably in the form of a capsule, pill, tablet, powder, elixir or parenterally administrable aqueous solution.
Patent GB-303509-A (GB)
Title: Improvements in servo-brakes of the centrifugal type
IPC: B60T13/06
Filed: 1928-12-27
Abstract: 303,509. Piganeau, G. P. Jan. 5, 1928, [Convention date]. Addition to 285,033, [Class 103 (i), Brakes &c.]. Variable-speed gearing. - Servobrake mechanism of the type described in the parent Specification and wherein the bra.king pressure is derived from the centrifugal action of rotating masses is provided with change-speed gear automatically controlled by the speed of the vehicle driving shaft by which the masses are rotated whereby a more uniform driving speed for the servo-mechanism is obtained. The change-speed gear comprises a pair of pinions 60, 61 permanently geared to pinions driven from the vehicle shaft and freely mounted on the shaft 1<a> of the servo-brake mechanism. The gears 60, 61 have clutch teeth 63 for engagement with clutch teeth on a part 64 secured to the shaft 1<a>. Radiallv movable masses 65 are slidable in guide members 66, 67 driven by the pinion 61. When the vehicle shaft and pinion 61 are running at a low speed the pinions are held by springs connecting the masses 65 and by detents 72, 73 against the action of the spring 70 in the position shown, in which the pinion 61 is engaged by the teeth 63 with the shaft 1<a> which is thus driven at the higher speed ratio. If the speed of the vehicle shaft is sufficiently high to cause the masses 65 to overcome the detents 72, 73 and the connecting springs, the pinions are moved to the left by the spring 70 to engage the pinion 60 with the shaft 1<a> which is thus driven at a lower speed ratio. The speed of the shaft and thus the braking pressure effected is thus rendered less variable with ,the speed of the vehicle.
Patent GB-1224265-A (GB)
Title: Improvements in and relating to a rotary, positive-displacement pump
Inventor: DADIAN LAZARUS HARRY
IPC: F04C14/22
Filed: 1969-07-30
Abstract: 1,224,265. Rotary positive-displacement pumps. REX CHAINBELT Inc. July 30, 1969 [Oct. 31, 1968], No.38257/69. Heading F1F. Pumping is effected by a rotor 20 with outwardlysliding vanes 22 engaging with a non-rotary ring 23 whose eccentricity can be changed automatically by pistons 91, 91a to control the output. Pressureloaded plates 40, 41 furnished with pairs of suction and discharge ports have layers of bearing material e.g. bronze, abutting the rotor and the ring 23, a ring 90 preventing excessive force being applied to the ring 23 by said plates. A pin 92 opposes radial thrust exerted on the ring 23 by the working fluid between the vanes. The piston 91 is loaded by pressure transmitted thereto from an area bounded by pressure-loaded sealing-rings in a groove 66<SP>1</SP> surrounding the suction ports in the plate 41. The piston 91a is loaded by a spring 111 and pressure transmitted thereto from a pressureloading area bounded by pressure-loaded sealing- rings in a groove 66<SP>1</SP> surrounding the discharge ports in the plate 41. The pressure applied to the piston 91a is regulated by spring-loaded valvespool 114 in response to the output pressure of the pump. The ports in the plate 41 communicate with identical ports 47, 57 in the plate 40 through the spaces between the vanes, the latter ports being connected to respective passages 82, 140 for the working fluid. Pressure-equalizing grooves 48, 58 in each of the plates are connected to the corresponding ports. A single "shot" of working fluid for lubricating purposes is fed from the grooves 48 to each of bearings 27, 28 per revolution of the rotor by way of radial slots 151, 151a in the rotor and similar slots in the plates. The pin 92 may be replaced by a rockable thrust-block, Figs. 9 and 10 (not shown).
Patent GB-1481389-A (GB)
Title: Herbicidal compositions
IPC: A01N43/70
Filed: 1975-09-18
Abstract: The novel herbicidal compositions contain, as active ingredients,   a) 5 to 95 parts by weight of at least one compound of the general formula I <IMAGE>  and b) 95 to 5 parts by weight of at least one herbicidal compound which does not come under the formula I.   They can also be composed of a mixture of components a) + b). In formula I, the symbols R1, R2, X and n have the meanings given in Patent Claim 1. Component b) is, generally, a well-known herbicide. The compositions according to the invention have a synergistic activity in comparison with herbicidal compositions which contain only one of the two components with herbicidal activity.