baber/WOPTO huggingface dataset:
Patent GB-1240949-A (GB)
Title: Improvements in or relating to the manufacture of adsorption cokes
IPC: C01B32/384
Filed: 1969-09-19
Abstract: 1,240,949. Adsorption coke. BERGWERKSVERBAND G.m.b.H. 19 Sept., 1969 [1 Oct., 1968], No. 46369/69. Heading C1A. [Also in Division C5] Ball-shaped adsorption coke having a diameter up to 3 mm. is made from coal or coke having a particle size less than 100 Á by mixing the coal &c. with a thermoplastic binder, e.g. soft or hard pitch or petroleum bitumen, in the presence of water or water vapour at a temperature above the fusing temperature of the binder. The mixture is then cooled, optionally after having been treated to increase its surface area, e.g. by being formed into strands, granulated to the size desired, precarbonized at 100‹ to 300‹ C. in a revolving tubular furnace, and coked, e.g. in the same furnace. The product may be activated with water vapour, CO 2  or SO 2  in a rotary tubular furnace, or in a fluidized bed reactor at temperatures of, e.g., 850‹ or 950‹ C.
Patent GB-1440779-A (GB)
Title: Process for the dyeing of synthetic fibrous material from organic  solvents
IPC: C09B29/08
Filed: 1973-10-04
Abstract: 1440779 Azo dyes HOECHST AG 4 Oct 1973 [7 Oct 1972] 46392/73 Heading C4P [Also in Division D1] The dyes of formula in which D is a radical of a diazo component of the benzene or heterocyclic series free of watersolubilizing groups, and may be substituted by halogen, nitro, cyano, alkyl, alkoxy, alkylsulphonyl, trifluoromethyl, sulphonamide, acyl, alkoxycarbonyl and/or carbamoyl groups, the alkyl and alkoxy groups having I to 4 carbon atoms, B is hydrogen or halogen, C 1  to C 4  alkyl, acylamino group optionally substituted by chlorine or bromine atoms, X 1  is hydrogen, chlorine or bromine, X 2  is hydrogen or chlorine with the proviso that at least one of X 1  and X 2  is chlorine or bromine, R is a linear or branched C 1  to C 18  alkyl group, R 2  is hydrogen or a C 1  to C 4  alkyl group, may be prepared by acylating a compound of formula with a carboxylic acid R 1 COOH or an acid anhydride, acid chloride or acid bromide thereof, at 20‹ to 100‹ C. in an inert solvent optionally in presence of an acid-binding agent.
Patent GB-1492558-A (GB)
Title: Device for the directive transmission of elastic surface waves and process for making the same
IPC: H03H9/02
Filed: 1974-10-29
Abstract: 1492558 Surface wave devices THOMSONCSF 29 Oct 1974 [30 Oct 1973] 46869/74 Heading H3U In a surface wave device comprising a crystalline substrate, ion-implantation is used to permanently modify the lattice structure in a zone of the substrate, thus changing the phase velocity of surface waves therein. For an increase in velocity, a quartz substrate is used with implanted ions of helium, lithium or beryllium; an ion-implanted lithium niobate substrate may be used to obtain a velocity decrease. In a first embodiment, Fig. 1, two parallel higher-velocity zones 3, 4 are provided as the reflecting elements of a surface wave guide. In Fig. 2 a zone 13 in the shape of a concave lens is provided to refract waves from a curved transducer 9, 10; zones in the shape of convex lenses and prisms may also be provided, (Fig. 3, not shown). A reflecting array of parallel zones 46, Fig. 7, may be provided, and in the modification of Fig. 8 (not shown) the zones are spaced non-uniformly to provide a dispersive delay; these embodiments may also be used for transmission to split a surface wave beam. In the embodiment of Fig. 4, lower-velocity zones 25, 29 respectively act as a wave guide and a converging lens. Finally a zone 41, Fig. 6, may be provided in one of two parallel wave paths to vary the relative delay time.
Patent GB-996997-A (GB)
Title: Improvements in sheet feeding devices
Inventor: NESI VITALIANO
IPC: B41F21/05
Filed: 1962-12-14
Abstract: 996,997. Feeding sheets. LINOTYPE MACHINERY Ltd. Dec. 13, 1963 [Dec. 14, 1962], No.47218/62. Heading B6B. In a swing feed gripper system including pairs of co-operating top and bottom gripper elements, each top gripper element closes onto the bottom gripper element at the sheet take point to grip a sheet therebetween, the gripper elements then being swung through an arc to transfer the sheet to a sheet transfer point, at which point each top and bottom gripper element is rocked relative to the arc of travel, the motion of the top gripper element being positively halted at a preselected datum line, the motion of the bottom gripper element continuing to separate the gripper elements and thereby release the sheet. The swing- feed gripper system comprises pairs of spaced co-operating gripper jaws 1 and 3 carried from a shaft 8 rotatably mounted in arms 9. The jaws 3 are attached to an L-shaped crossmember 4. The latter is fixed at each end to a block 6 pinned to the shaft 8. The position of the jaws 3 is adjustable vertically by screw- and-slot connections 5 between the member 4 and blocks 6 and by bolts 26 passing through the blocks and having heads 25 bearing against the underside of the member 4. The jaws 1 are secured to a cross-bar 2. End members 13 attached to the cross-bar are freely mounted on the shaft 8. An L-shaped arm 18 freely mounted on the shaft 8 is attached at one end to the cross-bar 2. The other end is anchored by a spring 20 to one arm 9. A set screw 23 limits movement of the arm 18 in a clockwise sense. A lever 11 fixed to one end of the shaft 8 carries a cam follower 12 and a lever 15 fixed to one end of the cross-bar 2 carries a cam follower 17. Initially, the jaws 1 and 3 are closed and positioned with the arm 18 out of contact with the set-screw 23. Rotation of a first cam with which the follower 12 co-operates, rotates the shaft 8 clockwise to lower the jaws 1 and 3. Movement of jaws 1 ceases when the follower 17 strikes a second cam, the jaws 3 being lowered still further to open the jaws. Next, the second cam is rotated to allow the jaws 1 to close on to the jaws 3 under the action of spring 20 and grip a sheet therebetween. With the sheet held between the jaws, the arm 18 is just clear of the set-screw 23. The arms 9 are swung through an arc to feed said sheet to a printing press. At the termination of this movement, the first cam is rotated once more to rotate the shaft 8 clockwise. Jaws 1 and 3 rotate together for a short distance until the arm 18 strikes the set-screw 23, whereupon the jaws 1 are halted on a preselected datum line. The jaws 3 continue moving to open the grippers and release the sheet. Specification 996,996 is referred to.
Patent GB-1452846-A (GB)
Title: Purification of 1,4-butanediol
IPC: C07C31/20
Filed: 1974-10-31
Abstract: 1452846 Purification of 1,4-butanediol E I DU PONT DE NEMOURS & CO 31 Oct 1974 47228/74 Heading C2C 1,4-Butanediol is recovered from a crude mixture containing by weight 1-20% water plus low boiling organic impurities, 80-99% 1,4- butanediol and 0À05-5% combined high boiling organic tars and inorganic salts by feeding the mixture to a distillation column operating at subatmospheric pressure (e.g. about 100 mm. Hg absolute) and adapted with a reboiler, withdrawing the overheat and preferably returning a portion thereof as reflux, passing the bottoms to the reboiler, withdrawing liquid from the reboiler, passing vapour from the reboiler to the bottom of the column, and withdrawing as vapour from the bottom portion of the column, preferably not the very bottom, or withdrawing a portion of the vapour passing from reboiler to column, substantially pure 1,4-butanediol. Tetrahydrofuran produced by decomposition of the butanediol is removed with water and other low boilers in the overheads.
Patent GB-1247520-A (GB)
Title: Container for laboratory use
Inventor: RUES OLE
IPC: B01L3/14
Filed: 1968-10-04
Abstract: 1,247,520. Container closures. O. RIIS. 4 Oct., 1968 [23 Oct., 1967], No. 47264/68. Heading B8T. A container 4 for laboratory use, e.g. for containing blood for sedimentation tests, includes a closure having a pierceable middle part 5. When the middle part 5 is pierced by a sedimentation tube or a pipette, the tapered part 6 forms a seal around the tube or pipette, and fluid in the container is forced into the tube or pipette so that the test may be performed. The container may be of plastics material and as shown, the part 1 of the container having a thin wall so that this part 1 may be squeezed to adjust the height of fluid in the tube or pipette, the lower inner diameter 3 of the container closely conforming to the lower end of the tube or pipette.
Patent GB-1533297-A (GB)
Title: Prostaglandin analogues
IPC: C07D317/72
Filed: 1976-11-15
Abstract: 1533297 Cyclodextrin clathrates of prostaglandins MAY & BAKER Ltd 14 Nov 1977 [15 Nov 1976] 47482/76 Heading C3U [Also in Division C2] The invention comprises a process for the preparation of cyclodextrin clathrates of prost- 14-enoic acid derivatives of the Formula VIII wherein R<SP>1</SP> is H or C 1-15  alkyl, R<SP>2</SP> is H or carboxylic acyl, R<SP>3</SP> is H, halogen or C 1-4  alkyl, n is 5,6,7 or 8, and A is >C=O or >CH(OR<SP>2</SP>) by (A) for those compounds in which R<SP>2</SP> is H and A is >C = O (i) the acid hydrolysis of compound of the Formula X wherein the symbols R<SP>4</SP> are identical alkyl radicals or together form ethylene optionally substituted by identical alkyl radicals on each carbon atom; or (ii) subjecting compounds of the Formula X to chromatography; (B) for those compounds in which R<SP>2</SP> is H and A is >CH(OH) the reduction of compounds of the Formula VIII in which A is >C=O and R<SP>2</SP> is H or of the Formula XI (C) for those compounds in which R<SP>2</SP> is carboxylic acyl, the acylation of the corresponding compounds in which R<SP>2</SP> is H; (D) for those compounds in which A is >C=O and R<SP>2</SP> is carboxylic acyl, the acylation and subsequent hydrolysis of compounds of the Formula X, and converting the resulting compounds into cyclodextrin clathrates, and the cyclodextrin clathrates of the novel compounds of Formula VIII above wherein at least one of the symbols n, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> has a significance as set out below: (i) n is 5, 7 or 8; (ii) R<SP>1</SP> is C 5-15  alkyl; (iii) R<SP>2</SP> is benzoyl or C 2-6  alkanoyl; (iv) R<SP>3</SP> is halogen.
Patent GB-475747-A (GB)
Abstract: 475,747. Casement windows ; sliding doors ; hinges. HOPE & SONS, Ltd., H., and SAINSBURY, G. W. May 29, 1936, No. 15193. [Class 20 (iii)] [Also in Group XXV] In sliding-folding windows or partitions, the leaves of the hinges d connecting the individual leaves b, c of each pair of panels are capable of relative axial movement in addition to rotary movement, to prevent excessive pressure between the rollers and guide tracks; the hinges e, f respectively connecting adjacent pairs of panels, and the end panel with the fixed frame a are of normal construction and incapable of axial movement. As shown in Fig. 2, the knuckle of a leaf g2 of each of the hinges d is free to slide on the pivot pin h which is secured to the other leaf g<1>. The leaves g<1>, g<2> may be suitably shaped, as shown in Fig. 3, for attachment to the panels of the window. Specification 411,209 is referred to.
Patent GB-1032129-A (GB)
Title: Improvements in hollow-cylinder rotors
IPC: B02C4/30
Filed: 1962-12-17
Abstract: 1,032,129. Rotary brushes. E. VON DER OHE. Dec. 17, 1962 [May 4, 1962], No. 47617/62. Heading A4K. [Also in Divisions B1 and B2] Brushing apparatus comprises a hollow rotor cylinder assembled from longitudinal hollow segments 12, Fig. 1, to provide a number of parallel longitudinal grooves for the reception of tools 14 which are clamped between end discs by longitudinal rods 15 and pressure cones 16 and, in the present instance, take the form of brushes 30, Fig. 13.
Patent GB-1147953-A (GB)
Title: Improvements in or relating to chairs and steps
Inventor: CITROEN GRACE GWENDOLYN
IPC: A47C12/02
Filed: 1966-10-25
Abstract: 1,147,953. Chairs combined with steps and tables. G. G. CITROEN. 15 Dec., 1967 [25 Oct., 1966], No. 47841/66. Heading A4H. A chair convertible into steps comprises a back-rest 4 secured to bars 5 which are pivoted at their lower ends to side pieces 2 supporting the seat 1. The back-rest is located in a position to serve as such by pegs 7 projecting from the side pieces and the back-rest can be swung forwardly and downwardly until the bars 5 rest on the floor, the back-rest then forming the lowertread and the seat 1 the upper tread of the steps or the back-rest forming a seat and the seat 1 a table.
Patent GB-1408021-A (GB)
Title: Incinerator
IPC: B05B7/04
Filed: 1972-10-17
Abstract: 1408021 Incinerators MIDLAND-ROSS CORP 17 Oct 1972 [29 Oct 1971] 47849/72 Headings F4B and F4T  An incinerator for burning a pumpable non- homogenous liquid has means 18, Fig. 1, for separating the liquid into two fractions 20, 22 of which a first 20 has significantly more combustibles than the second 22, a combustion chamber 12 having a frusto-conical section 62 in communication with a reaction chamber 14, a burner 16 at the small-diameter end of section 62, means 36 for supplying combtirant gas as a swirling flow in the combustion chamber, and means 28, 30 for feeding the fractions 20, 22 under pressure to the burner, the burner having a first atomizing nozzle 41, Fig. 2, for atomizing the first fraction 20 and a second atomizing nozzle 58 for spraying the second fraction 22 into the combustion chamber. When used for burning liquid wastes, separator 18, such as a settling tank, divides the waste into an oily fraction 20 and a watery fraction 22 which are supplied to the burner by pumps 28, 30 via pipes 54 and 26 respectively, Fig. 2. Fuel gas supplied at burner inlet 52 mixes with air from inlet 53 and the mixture passes through passages 42, 44 between an annular head 41 of the first nozzle and tubes 40, 38 respectively to produce first and second gas streams respectively. The oily fraction exits from head 41 via an annular outlet to form a film on an annular surface 48, the film flowing radially outwardly due to action of the first gas stream and being atomized at the periphery of surface 48 by the second gas stream flowing generally perpendicularly to the film flow. The spray angle of the oily fraction may be adjusted by altering the distance between the head 41 and a deflector disc. by means of spacers 56. The watery fraction is atomized by a conventional nozzle 56. An inlet 60 provides an annular air, or air/gas fuel mixture, stream between the two atomizers. A windbox 36, Fig. 1, with a centrifugal blower and spin vanes supplies combustion air, or waste gases as fumes having a sufficient oxygen content, as a helically swirling flow around the sprays from the atomizers. The apparatus provides rapid and substantially complete combustion of the oily fraction before the tempering effect of the watery fraction influences the reaction.
Patent GB-1207310-A (GB)
Title: Dynamo electric machines
Inventor: WHARTON EDDIE
IPC: H02K11/04
Filed: 1966-10-26
Abstract: 1,207,310. Securing windings in alternators. ROTAX Ltd. 24 Jan., 1968 [26 Oct., 1966], No. 48034/66. Heading H2A. .The Specification describes the high-speed alternator disclosed in Specification 1,207,307. The invention claimed relates to the method of retaining the windings in the stator slots by wedges where the slots only accommodate the wedges at spaced-apart portions along the stator.
Patent GB-1513180-A (GB)
Title: Livestock feeder device
IPC: A01K1/10
Filed: 1976-11-24
Abstract: 1513180 Livestock feeders K BATCHELOR 24 Nov 1976 [24 Nov 1975] 48245/75 Heading AIM The upper part of a substantially cylindrical feed enclosure is formed by spaced parallel bars 6 inclined at 30‹ to the axis of the enclosure, so that animals must twist their heads to feed from the enclosure and will not withdraw their heads while eating, so avoiding waste by spillage.
Patent GB-1019270-A (GB)
Title: A radio-frequency transistorised amplifier
IPC: H03F3/19
Filed: 1964-11-27
Abstract: 1,019,270. Transistor amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. Nov. 27, 1964 [Nov. 28, 1963], No. 48263/64. Heading H3T.  A non-linear capacitor is connected to the output of a radio frequency transistor amplifier for the purpose of minimizing variation in frequency response due to change in signal level. The non-linear capacitor may be formed by a pair of variable capacitance diodes connected in series opposition across the output of a common-base stage in an F.M. transmitter.
Patent GB-1106140-A (GB)
Title: Device for the grinding to shape of round wooden workpieces
IPC: E05D7/083
Filed: 1966-10-27
Abstract: 1,106,140. Grinding. K. REIME, and H. SCHONER, [trading as WALTER HEMPEL]. 27 Oct., 1966 [22 June, 1965], No. 48261/66. Heading B3D. A grinding device for shaping wooden workpieces 6 comprises an endless grinding belt 1 and at least one profiled press-on plate 7 on the rear side of the grinding belt formed with at least one recess connected to a vacuum device to ensure abutment of the belt against the plate. The workpieces 6, which may be round brush handles, are carried in members 5 on a chain 4 past the grinding belt 1 which is guided over rollers 2, 3. As described, the device has two press-on plates 7, 8 each of which is formed with recesses 9, 10 connected to suction devices 11, 12 which retain the belt against the plates. As the workpieces are carried past the plates they rotate and are ground to the profile of the plates.
Patent GB-1195218-A (GB)
Title: Ornamental Material.
IPC: G02B5/08
Filed: 1967-10-24
Abstract: 1,195,218. Embossing; ornamenting. L. E. CARPENTER & CO. 24 Oct., 1967 [8 Nov., 1966], No. 48382/67. Headings B6G and B6J. Ornamented material is produced by an embossing process which provides a surface of the material with an array of relief elements, which may be protuberances or depressions, arranged in rows, each relief element being contoured to have at least one light-reflecting facet, each facet of each relief element differing in contour from the facets of the next adjacent relief element, and the result being an array of highlights on the material which appear to move when any two elements of a three-part optical system, comprising a light source, the material and an observer undergo relative motion. Fig. 16 illustrates a sheet, in e.g. cotton duck, covered in a thick vinyl plastics layer, in which rows of relief elements, in the form of depressions, intersect in different orientations on the right, 14b, and left, 14a, sides of the sheet. The pattern is cyclically repeating, as shown in the row on the extreme left, where corresponding relief elements 16, 17 are separated by a plurality of relief elements having facets with different contours or orientations. Highlights 24, 25 are also illustrated, and any movement of the above-mentioned optical system will cause apparent movement of these highlights in different directions. Embossing process.-A preferred method of forming the sheets is described in the following steps:-A square tray is provided with a closepacked layer of ball-bearings; thermoplastics material is poured in and allowed to set; the thus-formed thermoplastics mould is electroformed, and utilized in the production of two thermoplastics plates, each of which bears a similar regular array of hemispheres on one of its surfaces (Figs. 1-5, not shown). These deformable plates are then placed with their contoured faces abutting between the platens of an embossing press, the sheets being angularly displaced with respect to each other. On the application of heat and pressure, the plates interact with each other, and deform; the heat is removed and the plates are set (Figs. 6-9, not shown). They can then be electroformed to provide the embossing tools from which the ornamented sheets are produced. Alternatively, a thin sheet of paper or metal foil can be placed between the deformable plates and can be moulded by pressure alone to produce the master surface for the embossing tool (Figs. 10, 11, not shown). The different highlight effects can be produced by altering the skew angle between the plates, the direction of skew, and the contact time. The embossing press may employ rollers in place of platens.
Patent GB-1515797-A (GB)
Title: Machine for sealing parallelepipedal boxes having different heights
IPC: B65B51/06
Filed: 1976-11-22
Abstract: 1515797 Applying sealing strips to boxes A MARCHETTI 22 Nov 1976 [28 Nov 1975] 48550/76 Heading B8F In a machine for applying sealing strips to the tops of boxes (not shown) on a conveyer 9, the sealing head 19 is movable vertically by rams 20 so that boxes of different height can be accommodated, the rams 20 being actuated when the front wall of a box contacts a lever 25. The rams move the head 19 upwardly until the lever 25 is clear of the box. The head is then allowed to move downwardly under its own weight until it rests on the top of the box. A cut-off valve 31 provided with a plunger 33 and located between the rams 20 and a control valve 26 operated by the lever 25, maintains some pressure in the ram chamber 28 to prevent the entire weight of the head 19 being borne by the box. The boxes are guided by members 10 which are moved towards one another when a box depresses a lever 18.
Patent GB-954620-A (GB)
Title: Improvements in or relating to electromagnetic couplings
IPC: H02K49/04
Filed: 1962-12-31
Abstract: 954,620. Eddy-current couplings. HEENAN & FROUDE Ltd. Dec. 31, 1962 [Maroh 7, 1962], No. 49176/62. Heading H2A. An eddy-current coupling, brake or dynamometer comprises a circular stationary field assembly 1A, 1B which includes at least one annular coil 3 to provide a toroidal flux field F which interlinks a relatively rotatable circular double-component pole assembly 33A, 33B and circular eddy-current inductor assembly 23, the inductor assembly comprising three adjacent rings 23A ... 23C, extreme ones 23A, 23C of which are on opposed sides of the coil, and the pole assembly having three adjacent bands of magnetic poles located adjacent respective rings 23A ... 23C, the polarities of all the poles at each end band 35, 37 being the same but different from those at the other end band and the polarities of the poles 39, 41 at the intermediate band being alternately different. In the coupling shown, the pole and inductor assemblies are respectively secured to driven and drive shafts 13, 9, the former driving a tachometer generator 43 which automatically regulates the field coil circuit. The alternate polarities are formed by interdigitating the teeth of the two pole assemblies 33A, 33B. In other embodiments the field is created by two ooils. Specification 705,559 is referred to.
Patent GB-1534862-A (GB)
Title: Temperature monitoring of semiconductors
IPC: H02H9/00
Filed: 1975-12-02
Abstract: 1534862 Measuring junction temperature CANADIAN GENERAL ELECTRIC CO Ltd 2 Dec 1975 [2 Dec 1974] 49429/75 Heading G1N [Also in Division H2] The temperature of a semi-conductor junction is determined by connecting an RC network 27, simulating the thermal system of the semiconductor, in series with a controllable current source 26 across a D.C. supply 30, 31, the current source being controlled by a signal (33, 34) proportional to the semi-conductor current and having an input-output characteristic which reflects the power dissipation characteristic of the semiconductor. The current controller preferably has three parallel stages 43, 47, 54 which come into conduction at successively higher levels of the input to provide a straight-line approximation to the required characteristic. A single temperature-monitoring network may be used for a large array of semi-conductor devices, e.g. thyristors or diodes in a converter, which are all expected to receive an equal share of the total current.
Patent GB-1345560-A (GB)
Title: Process for the manufacture of tetrachlorocyano-benzene or tetrabromocyanobenzene
IPC: C07C255/49
Filed: 1971-10-25
Abstract: 1345560 Tetrahalogenocyano benzene CIBAGEIGY AG 25 Oct 1971 [13 Nov 1970] 49481/71 Heading C2C [Also in Division C4] 1 -Cyano-2,3,4,5-tetrachloro or bromobenzene is prepared by decarboxylating the ammonium salt of the corresponding cyano halogen benzoic acid by warming in an aprotic solvent or mixture thereof. By reacting the compound with ammonia in an autoclave at 120‹ C. 4-amino-2,3,5- trichlorobenzonitrile is obtained the diazonium salt of which can be used to prepare dyes.