baber/WOPTO huggingface dataset:
Patent GB-1360866-A (GB)
Title: Filtration
IPC: B01D24/12
Filed: 1971-09-24
Abstract: 1360866 Filtering fibrous contaminants from liquid HYDROMATION FILTER CO 24 Sept 1971 [28 Sept 1970] 44606/71 Heading B1D Fibrous contaminants are recovered from paper mill or tannery waste by filtering downwards through a bed of plastics granules of 0.05 to 0.375 inch diameter, which traps the fibres throughout its thickness, the bed being periodically slurried and circulated out of bed chamber 10 and round circuit 27, 28, 29, 15, 30 and back to chamber 10. During the latter parts of some of these circulation cycles, valve V6 is open so that some liquid and fibres washed from the granules leaves the slurry stream through apertures in separator 28 (Fig. 3, not shown) the liquid loss being made up by allowing unfiltered liquid to enter the circuit through valve Vl. Other circulation cycles merely agitate and reform the bed, and redistribute the fibres therein, valves Vl and V6 being closed. Each such cycle is followed by the reforming of the bed in chamber 10, during which only valves V2, V5 and V7 are open, and then a purge cycle with only valves V2 and V7 open to clean filtrate outlet line 24. Filtration then begins again with valves V1, V2 and V3 open and others closed. Pump 15 runs at high speed to slurry the bed and at low speed otherwise. Fig. 2 (not shown) illustrates chamber 10, wherein the bed is supported on a wedge wire partition through which slurry return pipe 30 extends. An air bleed valve V8 is opened during initial filling of chamber 10 with liquid. The circulation cycle may be initiated in response to a signal given by means which monitors pressure drop across the filter or the turbidity of the filtrate. The filter granules may be polyethylene polypropylene or polyvinyl chloride and may be spherical or any other shape which precludes interlocking.
Patent GB-948539-A (GB)
Title: Improvements in or relating to universal joints
Inventor: CULL WILLIAM
IPC: F16D3/223
Filed: 1961-12-15
Abstract: 948,539. Universal joints. BIRFIELD ENGINEERING Ltd. Dec. 14, 1962 [Dec. 15, 1961], No. 45018/61. Heading F2U. [Dec. In a constant velocity universal joint comprising outer 3 and inner 4 members with convergent arcuate ball tracks 19, 18, the balls 20 are urged by the track convergence towards a guide member 26 which locates the balls axially and slides in a plane radial to the outer member in accordance with the angularity of the joint. The guide member 26 has a substantially conical surface 28 shaped to retain the balls in the median plane of the joint and is moved radially on a surface 25 of an end outer member 12 by pin 30 rigid with the inner member and having a part spherical end surface 35 retaining the inner member axially relative to the outer member. The outer member 3 has a flange 14 co-operating with a flexible dust cover 36 clipped to the shaft 6 of the inner member; the shaft 6 having a ball-splined sliding joint with a tubular shaft 8. In a second embodiment, the balls are retained in a split cage which is located by the guide member.
Patent GB-1350799-A (GB)
Title: Apparatus for cutting sheet material
IPC: B26D7/02
Filed: 1971-09-29
Abstract: 1350799 Cutting apparatus GERBER GARMENT TECHNOLOGY Inc 29 Sept 1971 [25 March 1970] 45355/71 Heading B4B An apparatus for cutting a layup of sheet material 12 comprises a cutting tool 22 mounted on a carriage 16 for movement over a material supporting surface, a material hold-down roll 50 having a peripheral surface for rolling engagement with the material, and drive means for rotating the roll at a peripheral speed which corresponds to the lineal speed of the carriage so that at the point of contact of the roll with the material the relative speed is substantially zero. As shown in Fig. 1, two rolls 50 are rotatably mounted in housings 52 which are slidably mounted on guide pins 58, Fig. 2, secured to brackets 56 on the carriage. The downward pressure of the rollers on the material is effected by means of springs 62 and adjusting screws 60. The rolls are rotated at the required speed by means of gears 66, 68, 72, 74 driven by a pinion 70, Fig. 2, engaging a rack 34. The carriage is moved by a motor 36 driving a pinion 38 engaging with the rack. In a modification, the rolls may be driven by separate electric motors (80, 82) Fig. 5 (not shown). The motor (82) may be varied by a controller (84) so as to rotate the roll (78) at a different speed from the other roll thereby causing the rolls to have a spreading action.
Patent GB-1464460-A (GB)
Title: Measurements in electrolytic cells
IPC: C25B15/02
Filed: 1974-10-21
Abstract: 1464460 Detection of thick mercury in Hg cathode cells IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Oct 1975 [21 Oct 1974] 45446/74 Heading C7B Build-up of thick Hg in an Hg-cathode cell is detected by moving a proximity sensor, e.g. of the RF type, towards the cathode and detecting when the sensor is a predetermined distance therefrom. This distance may be selected to give maximum sensitivity for the sensor e.g. up to 5mm. An electric linear actuator may automatically periodically move the sensor (e.g. every 30 secs) and the sensor output is connected both to a servo-relay, which reverses the actuator on reaching the predetermined distance, and to a potentiometer and bridge circuit for recording the position of reversal. A sheath of e.g. PTFE, PVC or polyethylene may protect the sensor. The Hg surface position rises as Hg-butter accumulates on the cell base.
Patent GB-1067493-A (GB)
Title: Process for treating textile fibres
IPC: D06M14/06
Filed: 1963-11-20
Abstract: Cellulose or keratin fibres are reacted with ethylenic compounds by bringing the fibres into contact with a system containing at least one ethylenic compound and a redox or azo catalyst for the polymerization thereof, and maintaining the reactivity rate of the ethylenic compound with itself substantially below its reactivity rate with the fibres, e.g. by continuously agitating the system. Suitable ethylenic compounds are unsaturated mono- and di-carboxylic acids and esters, amides and nitriles thereof, vinyl aromatic compounds, vinyl and vinylidene halides, vinyl ketones, esters of unsaturated alcohols and vinyl heterocylic compounds, specific compounds of these types being listed.  The examples describe forcing through wool heated aqueous liquids containing ferric nitrate, hydrogen peroxide and:  (1) acrylonitrile, (2) styrene and butyl acrylate and (3) styrene, 2-ethylhexyl acrylate and dibutyl maleate.
Patent GB-1477970-A (GB)
Title: Hydropneumatic valve actuator
IPC: F15B15/08
Filed: 1975-11-06
Abstract: 1477970 Hydropneumatic actuators GREER HYDRAULICS Inc 6 Nov 1975 [19 Nov 1974] 46100/75 Heading F1D In a valve actuator in which a piston is displaced to the "valve open" position shown by liquid supplied to a chamber 41b and returned by pressurized gas in chambers 36, 41a, which communicate, the piston has annular sealing members 82a, 82b and means located between the seals for detecting leaks. As described, if liquid leaks past the seal 82a it flows through ducts 85, 86, 91, 92 and a relief valve 90. The latter is set to a pressure below that of the liquid but above the gaspressure. Gas is admitted through a duct 18. Notches 67 and a shoulder 77 provide passages between chambers 36 and 41a.
Patent GB-1298030-A (GB)
Title: Solder alloy and process for soldering an inorganic solid oxide product
Inventor: NAGANO KENTARO
IPC: B23K35/26
Filed: 1970-09-28
Abstract: 1298030 Ceramic to metal seals ASAHI GLASS CO Ltd 28 Sept 1970 46108/70 Heading B3V [Also in Division C7] An alloy for soldering inorganic oxide material consists of and is prepared by melting the components and injecting air, oxygen or an oxygen-generating material, to modify the surface tension and viscosity thereof without forming a slag. The soldering may be effected while applying vibration to the contact surface of the solder and the inorganic oxide (e.g. ultrasonic vibration).
Patent GB-1190215-A (GB)
Title: Current Control Apparatus
IPC: H02M7/155
Filed: 1967-10-10
Abstract: 1,190,215. Control systems for consumption apparatus. COMPAGNIE GENERALE D'AUTOMATISME. 10 Oct., 1967 [11 Oct., 1966], No. 46325/67. Heading H2H. [Also in Division G4] An S.C.R. Fig. 1, is controlled so as to be conducting for selected complete half-cycles of the supply by selectively mixing, under the control of a register 5 which may form part of a computer, clock-pulses 111, 112 ... 115, Figs. 1 and 2, derived from the supply by pulse shapers 6, 7, 8, a counter A and gates 101, 102 ... 105. For example, if the number 19 (=10011) is set in register 5, clock-pulses 111, 114 and 115 are mixed producing a train of pulses, Fig. 3, in which in every group of 32 pulse positions (halfcycles of the supply) 19 pulses are present. Three-phase supply and full-wave rectifiers could be used.
Patent GB-1021949-A (GB)
Title: Preparation of 2-[2-(5-nitro-2-furyl)-vinyl]-pyridine-n-oxides
IPC: C07D405/06
Filed: 1964-11-13
Abstract: The invention comprises compounds of the formula <FORM:1021949/C2/1> wherein R represents a C1-3 alkyl group, and processes for their preparation by (a) condensing 5-nitrofurfural and a compound of the formula <FORM:1021949/C2/2> in the presence of acetic anhydride, or (b) oxidising a compound of by the formula <FORM:1021949/C2/3> The oxidation may be effected by hydrogen peroxide or an organic peroxide in an inert solvent, e.g. water, an alcohol or acetic acid.  Starting materials of the formula III are prepared by (a) condensing 5-nitrofurfural and a compound of the formula <FORM:1021949/C2/4> or (b) by nitrating a compound of the formula <FORM:1021949/C2/5>
Patent GB-1524104-A (GB)
Title: Electronic cash register
IPC: G06K15/00
Filed: 1976-11-10
Abstract: 1524104 Electronic cash register TOKYO ELECTRIC CO Ltd 10 Nov 1976 [14 Nov 1975] 46695/76 Heading G4T An electronic cash register has a read only memory 45 stored with a program, a central processor unit 29 and an input registering means, such as a buffer register 33, for storing a plurality of input data and the total thereof calculated from the input data and for successively printing the input data and the total thereof on a recording paper fed by a feed means included in a printing mechanism 41 and means for inhibiting the feeding of the recording paper, by one row, when an error has been made, for a correcting symbol to be printed on top of or -beside the erroneous data, such as crossing outlines as shown in Fig. 6.
Patent GB-1057608-A (GB)
Title: Fluid-actuated cylinder and piston unit
Inventor: SANDVIG ROBERT LAWRENCE
IPC: B25D9/08
Filed: 1965-11-05
Abstract: 1,057,608. Percussive tools. JAEGER MACHINE CO. Nov. 5, 1965, No. 46975/65 Heading B4C. A fluid pressure actuated percussive tool comprises an outer casing 10 and a wearresistant cylinder liner 25, the easing being formed with fluid-flow grooves (30, Fig. 6, not shown) for communication with ports 33 in the liner, and with a control valve 14, and the liner being provided with ports (34, Fig. 5, not shown) connected with exhaust passages 35 in the casing. The liner, which may be of hardened steel, is removably mounted in the casing and is located by means of a pin 29 so that the various ports and grooves in both the liner and casing are in correct alignment.
Patent GB-1014479-A (GB)
Title: Improvements relating to devices for the hydraulic tensioning of bolts
IPC: B25B29/02
Filed: 1964-11-18
Abstract: 1,014,479. Screwing-up. RHEINSTAHL HUTTENWERKE A.G. Nov. 18, 1964 [Nov. 27, 1963], No. 47004/64. Heading B3N. [Also in Divisions F2]  In an arrangement for tensioning a bolt 4 (see Division F2) for facilitating tightening or slackening of its nut 13, the nut is adjusted from a distance by a device 14 having a bar several yards in length and with a pinion at its end for engaging teeth on the nut when the end of the device is received in a socket 16. There is a ring of bolts 4 for securing the cover-plate 2 of a pressure vessel and there is a device 14 as well as a tensioning unit adjacent each bolt.
Patent GB-1371039-A (GB)
Title: Electroconductive papers
IPC: G03G5/10
Filed: 1971-10-08
Abstract: 1371039 Electroconductive paper HONEYWELL INFORMATION SYSTEMS Inc 8 Oct 1971 [31 Dec 1970] 47054/71 Heading D2B [Also in Division B2] An electroconductive paper comprises paper impregnated with potassium formate. The paper may be impregnated either during or after manufacture. Metallic salts of organic fatty acids may also be applied to the paper with potassium formate during the papermaking process to form a dielectric coating on the impregnated paper thereby making it suitable for use as an electrographic paper.
Patent GB-1316399-A (GB)
Title: Automatic telephone dialling device
IPC: H04M1/27495
Filed: 1971-10-08
Abstract: 1316399 Impulse transmitters LE PROTOTYPE INDUSTRIEL 8 Oct 1971 [16 Oct 1970 4 Dot 1971] 47087/71 Heading H4K A repertory dialling apparatus as described in Specification 1,176,742 is modified in that the motor which drives the toothed memory cam discs is stopped for 800 ms. after the group of teeth and gaps representing a digit has been read, enabling the inter-digit spacing on the disc to be reduced from 8-tooth spaces to 2-tooth spaces and the minimum number of stored digits on a disc to be increased. The modification involves the introduction of a control circuit 20 for which three different circuits are described (Figs. 2-4, not shown); they operate on the principle that when the line is broken due to a tooth displacing contact spring (77) a transistor (218) is held on and a capacitor (216) is charged. During the inter-tooth spaces, corresponding to interdigital pauses, the capacitor discharges through the base-emitter junction of the transistor and holds it on. The discharge time is arranged such that the transistor is held on during a 66 ms. tooth gap but turns off if a 100 ms. gap occurs, causing the motor to be switched off for 800 ms. by a contact of a relay which is controlled either by a second capacitor discharge circuit or a mono-stable multivibrator. A thyristor may be incorporated in the circuit to prevent impulses being sent if the motor is restarted half-way through a dialling sequence, e.g. after a power failure. To enable this thyristor to be triggered at the start of the cycle the switch 93 has three contact arms, the trigger voltage being developed between 93a and 93c in the short interval between 93a and 93b closing and 93b and 93c closing. The contact spring (77) may be connected in series with a subscriber's line or it may be connected to a relay having a contact in the line.
Patent GB-1088647-A (GB)
Title: Thin film capacitors
Inventor: DUCKWORTH ROGER GEORGE
IPC: H01G4/10
Filed: 1964-11-19
Abstract: 1,088,647. Capacitors. ULTRA ELECTRONICS Ltd. Feb. 18, 1966 [Nov. 19, 1964], No. 47170/64. Heading H1M. In a thin film tantalum capacitor, a layer of aluminium oxide is provided between the anodic tantalum oxide layer and the counterelectrode so that the latter may be a comparatively thick layer of aluminium and of low series resistance. A layer of aluminium may be shuttered on to the tantalum layer and anodizing carried out until all of the aluminium and part of the tantalum has been converted to oxide. The complete capacitor is aged at 250‹ C. before use.
Patent GB-1084950-A (GB)
Title: Pinboard for making selected electrical connections
IPC: H01R31/02
Filed: 1965-12-08
Abstract: 1,084,950. Plug boards. AMP Inc. Nov. 8, 1965 [Nov. 18, 1964], No. 47175/65. Heading H2E. A pin board which functions as a cross-bar switch has a number of X conductor strips and obliquely arranged Y conductor strips defining a co-ordinate system, Fig. 7 (not shown), even X conductors having contacts at even Y positions, odd X conductors having contacts at odd Y positions, even Y conductors having contacts at odd X positions, and odd Y conductors having contacts at even X positions. The contacts 24, Fig. 3 (not shown), extend from the strips and are in the form of sockets of generally rectangular cross-section with inwardly-bowed contact sides. Between contacts, the conductor strips are bowed to permit access to the intermediate contacts of other strips. U-shaped jumper pins 62, 64, Fig. 1 (not shown), are used to bridge two or three adjacent contacts. The X conductor strips are disposed in channels 38 in one face 34 of an insulating block 4 with the contacts in appropriate cavities 42, 44 and the Y conductor strips are disposed in channels in the opposite face 36. A top plate 6, with apertures 3 corresponding to each cavity 42, 44 for insertion of the jumper pins, has a rectangular recess 7 on its inner side, Fig 6 (not shown), with bosses 39 which fit into the channels 38, so as to locate the contact strips A bottom plate 8, which similarly fits into the channels beneath the block, has apertures 15, 19 corresponding to the outer two rows of contacts for receiving multi-pin plugs by which connections are made to the conductor strips
Patent GB-1093113-A (GB)
Title: 6-substituted penicillanyl alcohols
Inventor: CHENEY LEE CANNON
IPC: C07D499/00
Filed: 1964-11-19
Abstract: The invention relates to penicillanyl alcohols formula <FORM:1093113/C2/1> wherein R1 is amino, acylamino, benzyloxycarbonylamino, phthalimido or tritylamino and, in particular to penicillin alcohols of formula <FORM:1093113/C2/2> in which R3 corresponds to the group R of a side chain R-CO- present as a substituent on any of the known penicillins other than those containing a group which is altered by reaction with sodium borohydride, such as a ketonic carbonyl.  The structural formulae for a large number of preferred penicillin alcohols are provided.  The compounds are prepared by reacting an acid azide of general formula <FORM:1093113/C2/3> where R1 has the above meaning, with an alkali metal borohydride at pH 5.5 to 9.5 and in particular sodium borohydride.  The penicillin acid azides are prepared by treating the corresponding penicillin mixed acid anhydride with an inorganic azide e.g. sodium azide.  The 6-substituted penicillanyl alcohols are useful intermediates in the preparation of penicillin derivatives e.g. 6-phenylacetamidopenicillanyl alcoholphenylcarbamate, acetate, succinate and sulphone; and 6-aminopenicillanyl alcohol p-toluene sulphonate.
Patent GB-1039893-A (GB)
Title: Particle-throwing apparatus
IPC: B24C5/06
Filed: 1963-11-29
Abstract: 1,039,893. Blasting. PANGBORN CORPORATION. Nov. 29, 1963 [Nov. 29, 1962] No. 47288/63. Heading B3D. A set of wear liner segments for completely covering the internal surface of a housing for a particle-throwing wheel includes front liner segments, rear liner segments, end liner segments, a top liner segment and elongated strip segments, the strip segments joining the end segments with the front and rear segments and extending up to the junctures with the top segments, the strip segments covering all joints at the junctures and the segments overlapping each other so that no joint between segments provides a pathway that leads directly to the housing. The rear wall 82, Fig. 1 (not shown), of the housing has a liner 119, Fig. 2, comprising segments 131-135 with their edges overlapping each other; the segments are secured to, but spaced from, the rear wall. Strip segments 151-154 rest directly against the internal face of the rear wall and have edges that overlap the edges of the segments 131-135. The front wall 81, Fig. 1 (not shown), of the housing similarly has a liner 120, Fig. 3 (not shown), comprising segments 161-165 and strip segments 171-174. End walls 84, 84, Fig. 2, of the housing have liners 121, 122 each comprising segments 181, 182 of channel shape with side lips that form an overlap with the strip segments. The segments 181, 182 are secured to, but spaced from, the end walls. The hinged lid 195, Fig. 2, of the housing has a liner 123 secured to, but spaced from, the lid with its edges overlapping the front, rear and end liners.
Patent GB-1137348-A (GB)
Title: Speed and/or direction indication apparatus
Inventor: MARTIN MICHAEL STUART
IPC: G01P13/04
Filed: 1966-10-26
Abstract: 1,137,348. Analogue-to-digital converters. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 23 Oct., 1967 [26 Oct., 1966], No. 47970/66. Heading G4P. [Also in Divisions G1 and G3] Indicators 16, 17, 18 of particular speeds are operated by comparing the fluid pressure built up in a reservoir 12 in direct proportional relationship with the speed of a shaft 1 with different reference pressures applied to devices 13, 14, 15 (see Division G1) in each of which the pressure differential is amplified through a succession of fluid differential amplifying devices 19, 23, 25 and a bi-stable fluidic device 27. One output of each pair is fed back through a restricting valve 29 to the reference input amplifier 19 so that immediately the device 27 tends to be switched, the left-hand input of amplifier 19 is reduced to cause rapid switching of device 27 whose other output operates its associated indicator 16, 17, or 18.
Patent GB-1236063-A (GB)
Title: Improvements in or relating to fluid switching devices
IPC: F15C3/00
Filed: 1968-10-11
Abstract: 1,236,063. Valves. TATEISI ELECTRONICS CO. 11 Oct., 1968 [12 Oct., 1967], No. 48238/68. Heading F2V. Valve piston 7 is moved from end to end of a sleeve 6 by a snap-acting spring linkage under the control of push button 15. The piston has transverse bores 23, 24 which co-operate with bores 20, 21, 22 and grooves 28, 29 in the sleeve, and passages 30, 31 in block 4, to establish communication between inlet 17 and either an outlet 18 or an atmospheric exhaust 19. The actuating linkage comprises a pair of bifurcated levers 9, 14, fulcrummed at 12, 13 and interconnected by a tension spring 10 which effects snap movements of connecting member 26 as spring 10 is moved over centre in response to movement of lever 14 by button 15. Figs. 7-12 (not shown) illustrate an arrangement in which bores 20, 24 are replaced by an annular groove (61) around the piston, and the actuating linkage comprises a pair of interconnected leaf springs (50, 52).
Patent GB-1078429-A (GB)
Title: Measuring device for cylinders
IPC: G01B5/08
Filed: 1965-11-17
Abstract: 1,078,429. Dial gauges. HABRA-WERK WILHELM F. OTT. Nov. 17, 1965 [March 16, 1965], No. 48776/65. Heading G1M. Apparatus for measuring the circumferences of cylinders or for measuring deviations of actual cylinder circumferences from predetermined nominal circumferences comprises a yoke 2 carrying at one end the feeler 3 of a dial gauge 4 and at the other end an oppositely positioned feeler 5, the dial gauge having a scale calibrated directly in circumference values or in values representing deviation of an actual cylinder circumference from a predetermined nominal cylinder reference. In a modification, two scales and pointers are provided, arranged so that on complete rotation of one pointer the other moves through one scale division.
Patent GB-1090456-A (GB)
Title: Miniature electric circuit-breakers
IPC: H01H73/04
Filed: 1964-12-01
Abstract: 1,090,456. Automatic circuit-breakers. BASSANI S.p.A. Dec. 1, 1964 [April 11, 1964], No. 48793/64. Heading H2B. A miniature circuit-breaker comprises a toggle 27, 29 pivoted to a manual operating member 14 and to a contact carrier 21, the toggle when straight being in the path of movement of both an armature 35 of an electromagnetic trip 36 and a member 37 carried by a thermal trip 38 so that under excess current conditions either trip collapses the toggle to permit the contacts to open. Two pairs of series-connected contacts may be provided and the operating member may be a rocker 14.