baber/WOPTO huggingface dataset:
Patent GB-1451800-A (GB)
Title: Serial walsh-function generator
IPC: G06F1/025
Filed: 1973-12-17
Abstract: 1451800 Walsh function generator CSELT CENTRO STUDI E LABORATORI TELECOMUNICAZIONI SpA 17 Dec 1973 [20 Dec 1972] 58374/73 Heading G4H In a generator capable of generating pulse sequences IV, Fig. 1 corresponding to a Walsh function in response to the application to the generator of a binary representation II, Fig. 1 of the order of the Walsh function to be generated, the input binary sequence is produced by converting a binary code, specifying the order of Walsh function to be generated, to control signals which determine symmetry and skew symmetry conditions of the pulse sequence. As described the binary combination specifying the order of Walsh function to be generated is applied in parallel to the input TA Fig. 2 to provide via the converter network RC1 logic signals on the output lines 32 to 47 which correspond with the pulse sequence of the particular Walsh function to be generated and the logic signals set corresponding ones of the flip flops 5 via the switches 6. In addition the input binary code, after conversion in the converter RC2, appropriately sets units UD and UD2 in accordance with the number of pulses in the respective Walsh function selected so that the output is taken from after the second, the fourth, the eighth or the sixteenth flip flop 5, via UD1, and shift pulses are applied to the flip flops, via UD2, at a corresponding rate so that each Walsh sequence occupies the same time, whether composed of two, four, eight, or sixteen pulses. Actual transmission of the pulse sequence is effected by operation of button 25 which initiates transmission of the appropriate shift pulses from UD2 and also, via circuit 7 places switches 6 in their alternative position # to allow transfer of the output of the preceding flip flop 5 to the input of the succeeding flip flop, so that the flip flops operate, via the recirculating line 50, as a recirculating memory. After transmission, operation of button 8 restores the switches 6 to their original position α ready to accept a further Walsh function logic signal. Converter network RC1 comprises, Fig. 4, a parallel translator TP which receives the parallel binary input signal on lines 10 to 13, and converts it to a parallel output signal a'3, a'2, a'i and a' 0  by shifting the binary input signal a 3 , a 2 , a 1 , ao so that the highest significant binary digit occupies output position a'3, which will always therefore be a logic '1', and the output on line 32 will therefore always be logic '1', and line 33,  because of inverter 56, logic '0'. Because of the "exclusive -or" circuits 57 and 58 outputs 34 and 35 will be symmetrical with output 32 and 33 when a' 2  is 0, and skew symmetrical when a'2 is 1. Similarly due to "exclusive -or" circuits 59 to 62 outputs 36 to 39 will be symmetrical with outputs 32 to 35 when a' 1  is "0" and skew symmetrical when a' 1  is "1". Again outputs 40 to 47, due to "exclusive -ors" 63 to 70, will be symmetrical with outputs 32 to 39 when a'o is "0" and skew symmetrical when a'o is "1".
Patent GB-1334570-A (GB)
Title: Pigment compositions
IPC: C09B67/18
Filed: 1971-12-16
Abstract: 1334570 Azo pigment compositions; coupling in presence of amines AZIENDE COLORI NAZIONALI AFFINI-ACNA SpA 16 Dec 1971 [19 Dec 1970] 58581/71 Headings C4A and C4P Organic pigment compositions of improved dispersibility comprise an azo-acyl-acetaryl pigment and 3-40% by wt. thereof of an amine of formula or wherein R is a substituted or unsubstituted, saturated or unsaturated C 7 -C 23  aliphatic radical, or a natural or modified resinic alcohol radical. The pigment may be treated with the amine at 70-200‹ C. for 3-24 hrs. This may be effected in a simple mixture, in a mixture in an anhydrous organic solvent or aqueous suspension, or, before coupling the pigment, by heating the amine with the coupling mass, or by heating the amine and acylacetaryl reagent in a water-miscible organic solvent and then coupling with the diazonium salt. In Example 6 a solution in ethanol of acetoacetanilide and a cyclic diamine having a C 11  saturated aliphatic side chain is coupled with tetrazotized 3,3<SP>1</SP>-dichlorobenzidine.
Patent GB-1274299-A (GB)
Title: Plate rollover apparatus
IPC: B21B39/32
Filed: 1969-12-01
Abstract: 1,274,299. Rolling. DOMINION ENG. WORKS Ltd. 1 Dec., 1969 [13 Dec., 1968], No. 58612/69. Heading B3M. A plate roll-over comprises plate support levers 15 pivoted to a frame adjacent the side of a roller table so that they can lift a plate from the horizontal position to a vertical position wherein its centre of gravity is less than half the plate width above the table. The plate is received by similar levers 15 pivoted to a second roller table (12), Fig. 2 (not shown). The levers are each pivoted to two arms 20, 21 which cause the end nearest the pivot 22 to be moved downwards and the other end to raise. Alternatively the lever movement may be controlled by a roller and track arrangement. A set of walking beams 26 between the rollers of the tables serve to move the plate towards and away from the end stops 17 of the levers.
Patent GB-1371086-A (GB)
Title: Acid leaching process for treating high grade nickel-copper mattes
IPC: C01G3/10
Filed: 1971-12-17
Abstract: 1371086 Recovering copper and nickel values SHERRITT GORDON MINES Ltd 17 Dec 1971 [22 Jan 1971] 58878/71 Heading C1A A process for recovering and separating copper and nickel values contained in nickel-copper matte having a nickel - copper weight ratio up to 2À5 and containing sulphur in amount less than 1 mole per mole of total acid reactive metals contained in the matte comprises: (a) leaching finely divided particles of said matte in a first stage leach under an oxygen overpressure of at least 10 p.s.i.g. and at a temperature above 100‹ C. in aqueous sulphuric acid, which may contain dissolved nickel and copper values, having a pH in the range of 2À5 to 5À0; (b) continuing said first stage leach to effect preferential extraction of a major portion of the nickel values contained in said matte while leaving a minor portion of said nickel values unextracted to provide a first stage leach solution containing a relatively high concentration of dissolved nickel and a low concentration of dissolved copper and a first stage leach residue; (c) separating said first stage leach solution from said first stage leach residue; (d) leaching said first stage leach residue in a second stage leach at a temperature above 100‹ C. and under an oxygen overpressure of at least 15 p.s.i.g. with aqueous sulphuric acid, which may contain dissolved nickel and copper values, containing sufficient sulphur values to combine as sulphates with substantially all copper and nickel values contained therein to provide a second stage leach residue and a second stage leach solution containing a relatively high concentration of dissolved copper values and a relatively low concentration of dissolved nickel values; (e) recovering dissolved copper values from said second stage leach solution in a copperwinning step whilst simultaneously generating sulphuric acid to produce a spent solution containing sulphuric acid, dissolved nickel values and residual dissolved copper values; and (f) recycling sufficient of said spent solution from said copper-winning step to said first stage leach to maintain the pH of the first stage leach solution within said range of 2À5 to 5À0 and to adjust the total sulphur content of the slurry in said first stage leach such that there is about 1 mole of sulphur in said slurry for each mole of nickel and copper. If the matte also contains precious metals such as Pt and Pd, the second stage leach residue may be passed to a third leaching stage under more severe oxidizing conditions with sulphuric acid, to provide a third stage leach residue containing the precious metals in relatively high concentrations, the third stage leach solution being recycled to the second stage.
Patent GB-1442366-A (GB)
Title: Glass articles
IPC: C09K3/00
Filed: 1973-12-21
Abstract: 1442366 Glass composition OWENSILLINOIS Inc 21 Dec 1973 [27 Dec 1972] 59365/73 Heading C1M [Also in Division H4] A glass article for a Faraday rotator device, in which the glass has the following mole per cent composition: SiO 2  61-80; Li 2 O 15-27À5; Tb 2 O 3  3-9; Na 2 O 0-10; K 2 O 0-5; CaO 0-5; Al 2 O 3  0-3; B 2 O 3  0-3; La 2 O 3  0-3.
Patent GB-1435840-A (GB)
Title: Braking system for a motorcycle or other cycle
IPC: F16D65/06
Filed: 1973-12-21
Abstract: 1435840 Mechanical brake systems; brake shoes R BRETON 21 Dec 1973 [26 Dec 1972] 59474/73 Heading F2E In a braking system for a motor- or other cycle the brake shoe 8 is movable along a line inclined to the plane of movement of the wheel, the said line intersecting the said plane at a point ahead of the portion of wheel being braked. As shown, arms 3, pivoted on shafts 4, each carry a pin 5 mounting a block-holder 6 having an inner face inclined at an angle a with respect to the pin, a brake block 7 being mounted in a brake shoe 8 having an associated inclined face and being slidable in the block holder against the pressure exerted by a spring 10 on a shaft 9 which together with the lateral faces of the block-holder guides the brake shoe. The latter and the brake block 7 are secured together by a dove-tail connection 11. Application, by a pull on a cable 1, of the brake to a wheel rim 13 causes, when the brake block has contacted the rim, the brake shoe to slide relative to the block-holder 6. In a modification, the block-holder 6 and the shoe 8 are of a moulded synthetic material, the sliding connection between these members being constituted by ribs (26) and grooves (17).
Patent GB-1223920-A (GB)
Title: Articulated rotary transmission and shears comprising the same
Inventor: MUNCHBACH C
IPC: F16H35/02
Filed: 1968-12-17
Abstract: 1,223,920. Flying shears. I. UNGERER. 17 Dec., 1968 [10 Feb., 1968], No. 59903/68. Heading B3W. [Also in Division F2] Rotary motion of an input shaft a is conveyed to an output shaft b through linkwork comprising cranks secured to the shafts a and b, the cranks being interconnected by a pair of links connected to the cranks by joints 3, 4 and connected to each other by a joint 2 whose radial location may be varied in order to vary the speed ratio between the input shaft a and the output shaft b. As shown in Fig. 3, the joint 2 is provided with a roller 5 which runs over the surface of a fixed cam 6 and is urged into contact therewith by a spring 7. In a modification, an hydraulic piston and cylinder unit 9 is disposed between the joint 2 and joint 1. Alternatively an electric actuator may be employed. In another modification, a constraining rod 10, Fig. 6, is disposed between joint 2 and a pivot 11 that is adjustable relative to the axis of the shafts. The output shaft may be coupled to a crank-shaft 16, Fig. 8, which drives by means of connecting rods the upper knife 18 of pendulum flying shears, or through gearing to the drive of roller cutters (14), (15), (Fig. 7, not shown).
Patent GB-1191780-A (GB)
Title: Improvements in or relating to apparatus for Dispensing Substances into Flushing Cisterns and the like
Inventor: LEVEY ROBERT FOYE
IPC: C02F1/68
Filed: 1968-12-20
Abstract: 1,191,780. Disinfectant &c. dispenser. R. F. LEVEY and S. R LEVEY. 20 Dec, 1968 [22 Dec., 1967; 18 July, 1968], No.60760/68. Heading A5G. Apparatus for dispensing disinfectant or the like into the contents of a flushing cistern comprises sealed container for the material to be dispensed' provided with one or more apertures to allow the cistern contents to enter and leave the container, the aperture(s) initially being sealed 'by a water-soluble sealing member which dissolves when the apparatus is positioned, in the cistern. Preferably, the container. 26' is constructed of thermoplastic film which is heat sealed at its edges (42) to form a bag having holes 44, 46 and 49 which initially are covered 'by strips 48, 51 of water-soluble material, bonded to the container by a water-soluble adhesive. A hole 52 is provided in the container's upper edge to accommodate a suspension member, e.g. a wire-reinforced plastics strip which .may be bent to conform with the shape of the cistern wall and form a hook from which the container is suspended'.
Patent GB-1341566-A (GB)
IPC: H03K17/72
Filed: 1970-12-29
Abstract: 1341566 Inverting DANFOSS AS 29 Dec 1970 [29 Dec 1969] 61565/70 Heading H2F [Also in Division H3] In a switching circuit comprising a thyristor E1 having in parallel therewith a series arrangement of a current source K and a switch S for providing commutation, a freewheel diode D1 is connected in series with the primary of a transformer Tr1 the secondary winding being connected via a diode D2 to a voltage source V1 arranged to reverse bias D2 until, during commutation, a predetermined reverse voltage appears across the thyristor E1. The voltage V1 may be derived from a capacitor C connected across the main or an auxiliary voltage supply. Inverting.-Fig. 3 shows a combination of six circuits of the type shown in Fig. 1 with a single common capacitor C2 and diode D7 to form a three-phase inverter.
Patent GB-1281010-A (GB)
Title: Improvements in and relating to methods of manufacturing semiconductor devices
Inventor: LEE DAVID BELGROVE
IPC: H01L21/00
Filed: 1968-12-31
Abstract: 1281010 Semi-conductor devices ASSOCIATED SEMICONDUCTOR MFRS Ltd 22 Oct 1969 [31 Dec 1968] 61955/68 Heading H1K [Also in Division B6] A process for making semi-conductor devices includes the steps of aperturing a masking layer on one face of a semi-conductor wafer and anisotropically etching a pit therethrough, the edges of the aperture and crystal surface being so orientated that the pit has a V-shaped crosssection and a depth directly related to the width of the aperture, providing on the pitted face a rigid support which is insulating at least where it abuts that face and then removing material from the opposite face to expose the bottom of the pit. A plurality of spaced pits of uniform depth may be used to facilitate uniform thinning or pits of varying depths used to permit final control of thinning or contouring of the opposite face. In a typical example an oxide coated 100 orientated Si wafer containing a co-ordinate array of integrated circuits has five spaced 25 Á square apertures the edges of which lie parallel to intersections of 111 planes with the surface in the oxide over the channels between circuits. Treatment in a boiling equimolar mixture of hydrazine and water produces pits 20 Á deep. A glass handle body is deposited on the apertured face and the other face ground to expose the pits, which process is facilitated by illuminating the handle body. Air isolation between circuits and between elements of a circuit is provided by appropriately masking with oxide and etching as before. Individual circuits are finally separated by scribing and fracturing the handle body and potted. Isolation of individual elements of a circuit by PN junctions and solid insulator are suggested alternatives. Other anisotropic etchants which require use of silicon carbide or nitride masking are mixtures of hydrazine, water, and propanol or catechol, and of potassium hydroxide, propanol, and water.
Patent GB-610839-A (GB)
Title: Improvements in propeller air fans
IPC: F04D29/36
Filed: 1947-02-06
Abstract: 610,839. Axial-flow fans. ROBINS, T. H. Feb. 6, 1947, No. 749/46. [Class 110 (i)] A rotary air fan is provided with a rotor 10 having a hub 13 for engagement with the fan driving shaft 14 and having openings 23 in its wall so arranged as to form arms 24 between the openings, the arms 24 extending outwardly from the hub 13 and being joined at their outer ends by a rim 11. The openings 23 are normally closed by spring-loaded blades 27 pivoted on hooks 25, but when the fan is rotated the blades 27 move outwardly under the action of centrifugal force and take up an operative position to deflect air through the openings 23. The fan casing 16 is provided with a cover-plate 33 having radial discharge openings between which are radial arms 34 twisted or bent to deflect the air in an approximately radial direction. Reference has been directed by the Comptroller to Specification 628,345.
Patent GB-2010159-A (GB)
Title: Soldering a vitreous envelope for gas discharge display panels
IPC: C03C27/08
Filed: 1978-10-23
Abstract: A method of manufacturing a hermetically sealed envelope comprising assembling envelope-forming components of which at least one is a vitreous wall forming component wherein the or each vitreous component is metallised along a zone where it is to be bonded by solder to form a sealing joint. Such sealing is effected while the assembly 13 of envelope-forming components is within a hermetically secured chamber 1 e.g. using resistance heaters 11, 12. The chamber is evacuated via exhaust port 7 and valve 9 and filled with a gas other than air via inlet port 4 and valve 6 to fill the envelope. <IMAGE>
Patent GB-2009091-A (GB)
Title: Load Raising and Transporting Device
IPC: B60P1/48
Filed: 1978-11-01
Abstract: Load transporting trailer vehicle with a rear load carrying platform 14, is carried by arms 12, 13 mounted on an upstanding post on each side of the vehicle and operated by a ram so that the platform can be raised or lowered or pivoted on a transverse axis. <IMAGE>
Patent GB-2007432-A (GB)
Title: High Voltage Condenser
IPC: H01G9/08
Filed: 1978-11-08
Abstract: A high-voltage condenser (1) comprises interconnected condenser elements (2) formed of electrodes and an insulating film disposed therebetween and impregnated with a dielectric material. The assembly being embedded in an at least partly solid synthetic resin mass containing a dielectric material in a dispersed state, preferably the same material as the impregnant, e.g. mineral oil, synthetic oil, or chlorinated diphenyl. <IMAGE>
Patent GB-2007581-A (GB)
Title: Ball
IPC: A63B37/02
Filed: 1978-11-14
Abstract: In moulding a ball consisting of a cover on a hard spherical core, e.g. a cricket ball, one of the problems is maintaining accurate location of the core in the ball. According to the invention the core is surrounded by a moulded shell (11) having co- spherical projections (12a to 12f) which support the ball in a spherical mould in which the cover is moulded on. The shell may be of two half shells clipped together, and may be provided with apertures (13) so that any small gaps between the shell and the core may be filled with the covering material during moulding. <IMAGE>
Patent GB-2034682-A (GB)
Title: High Analysis Liquid Fertilizer
IPC: C05B17/00
Filed: 1979-01-03
Abstract: High analysis liquid fertilizers comprising the reaction product of urea and phosphoric acid having a pH between 1.5 and 4 and optionally containing the reaction product of urea and sulfuric acid, various trace elements normally found as contaminates in the lower grades of wet process phosphoric acid, potash and gelling agents, said fertilizers being further characterized as having total analysis of N, P2O5 and K2O of at least 25 weight percent and preferably 30 weight percent or greater. <IMAGE>
Patent GB-2014443-A (GB)
Title: A seat
IPC: A47C3/34
Filed: 1979-01-22
Abstract: A seat comprising a substantially upright elongate member (2) having a base member (6) at the lower end thereof and a supporting strut (3), a slide (4) slidably mounted on the elongate member (2) and selectively fixable thereon in one of a plurality of positions therealong by locking means (26), and a seat support (15) connected to the slide (4) and comprising an arm supporting a seating surface (16). Strut (3) is foldable against member (2) and support (15) is pivoted to slide (4). <IMAGE>
Patent GB-2015386-A (GB)
Title: Screw Centrifuge
IPC: B04B1/20
Filed: 1979-03-05
Abstract: A centrifuge for separating solids from liquid comprises a cylindrical sleeve part (1) and a conical sleeve part (2) connected thereto to form a drum and a screw conveyor arranged coaxially in the drum. The screw conveyor comprises separate cylindrical and conical parts (3), (4) connected together by means of a gearing (26). The cylindrical and conical parts of the screw conveyor rotate at different speeds with respect to the drum and liquid is collected from the drum part (1) and separated solids from the drum part (2). In operation, the helix of the cylindrical part (3) of the screw conveyor rotates in an opposite direction to that of the conical part (4). This may be achieved by arranging that the helices on the two parts of the screw conveyor run in opposite directions or by means of the gearing (26). <IMAGE>
Patent GB-2043596-A (GB)
Title: A container
IPC: B65D5/00
Filed: 1979-03-21
Abstract: A container (51) made from a foldable blank (1) has a rectangular bottom (2) and, extending upwardly and outwardly therefrom, end walls (52 and 53) and side walls (54 and 55). Each end wall (52, 53) comprises an end panel (7, 8), and end flaps (9 and 10, 11 and 12) are folded inwardly to define in part the side walls (54 and 55). Each side wall (54, 55) comprises a portion (17a, 18a) connected to, and extending upwardly from, the bottom (2) and a portion (17b, 18b) which is folded over to embrace the end flaps (9 and 11, or 10 and 12) and extend downwardly to be secured to the bottom (2). Each portion (17b, 18b) has a pair of side flaps (19 and 20, 21 and 22) which extend towards the opposite side wall of the container, each side flap (19-22) having its lower edge supported on the bottom (2) and its uppermost edge defining a supporting surface, below the uppermost edge(s) of the container, for supporting the bottom (2) of another identical container. A lid may be formed from a separate blank. <IMAGE>
Patent GB-2019295-A (GB)
Title: Apparatus for cutting sheet material
IPC: B26D1/10
Filed: 1979-04-20
Abstract: Apparatus for cutting sheet material (8), for example fabric, comprises a table (1) and a carriage (14) which is movable over the table (1). The carriage carries a cutter blade 18 and a drive mechanism 17 for reciprocating the cutter blade 18. The drive mechanism 17 includes an operating member to which the cutter blade 16 is connected and which is rotatable by a motor 21 and reciprocable by a motor 20 acting through an eccentric mechanism. <IMAGE>
Patent GB-2022756-A (GB)
Title: Mine Bolt and Method of Installing a Mine Bolt in Rock Formation
IPC: E21D21/00
Filed: 1979-06-04
Abstract: A mine bolt has an anchor device 25 including an expansible shell 29 surrounding a cone member 27 in threaded engagement with a bolt rod 23. Axial movement of the shell 29, as the cone 27 moves into the shell 29, is blocked by a thrust member 28 having a limited resistance to thrust. On exceeding the thrust limit, the thrust member 28 strips out of its threaded engagement with the rod 23, and slides over the unthreaded portion of the rod 23 on continued rotation of the bolt rod 23. During this continued rotation, the cone 27 and shell 29 remain relatively fixed, with the rod 23 advancing axially in its threaded engagement to tighten the head 24 of the bolt against a surface plate 31. The method provides for setting an anchor bolt to a limit pressure controlled by this stripping action. <IMAGE>
Patent GB-2024401-A (GB)
Title: Heat exchanger
IPC: F28D7/16
Filed: 1979-06-28
Abstract: Heat exchange apparatus comprises a closed casing subdivided by at least one transverse bulkhead 16 into two cylindrical chambers 18,20 each having a fluid inlet (e.g. 22 or 24) and a fluid outlet (e.g. 26 or 28), and heat transfer tubes 40 (e.g. heat pipes) sealed into the bulkhead(s) and extending therefrom into each said chamber, said tubes acting to transfer heat between two fluids (e.g. oil and cooling water) flowing respectively through the chambers 18,20. The bulkhead may comprise an elastic disc sandwiched between two plates each comprising a chamber end-wall. Baffles 36 provide tortuous flow paths for the fluids. <IMAGE>