baber/WOPTO huggingface dataset:
Patent GB-918857-A (GB)
Title: Improvements relating to a modulator magnetic flux source
IPC: H01F21/08
Filed: 1959-10-27
Abstract: 918,857. Frequency modulation. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST - NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. Oct. 27, 1959 [Oct. 28, 1958], No. 36468/59. Class 40 (5). [Also in Group XXXV] In a modulator, the core 7 of an oscillator coil 8 carries both the flux derived from signal coils 16 and an adjustable premagnetizing flux derived from a rotatable permanent magnet 1. A second permanent magnet 12 may buck or boost the flux of the first to double its range. The core 7 is of a nickel-zinc ferrite and the change in its permeability due to the signal flux varies the inductance of the coil 8. The permagnetization is adjusted so that it is operated on a straight part of its permeability characteristic. The magnets 1 and 12 are of magnetically hard ferrite having high magnetic and electrical resistance, to lessen their shunting effect on the core 7 and to prevent eddy currents respectively. The core 7 may be annular and the coil 8 divided so that E.M.F.s induced by the changing flux may be cancelled. The magnet disc 1 may have a plurality of poles so that it can serve several modulators simultaneously, or in an alternative construction (Fig. 1, not shown), it may be replaced by an annular magnet vertically disposed between the polepieces 2. The modulator may be enclosed in a case 14 of non-magnetic material.
Patent GB-1446276-A (GB)
Title: Grooving bucket
IPC: E21B7/00
Filed: 1974-08-20
Abstract: 1446276 Boring earth &c FRANKIPILE AUSTRALIA PTY Ltd 20 Aug 1974 [21 Dec 1973] 36555/74 Heading E1F An under reamer bucket for forming bells or grooves in the side walls of a hole or socket that has been drilled into the ground to allow casting of a concrete pile consists of a cylindrical bucket portion 10 having cutters 16, 17 which are movable from a retracted position inside the circumference of the bucket portion 10 to a cutting position in which they cut a groove or bell on rotation of the bucket, the ends of the cutters 16, 17 being angled to lead spoil into the interior of the bucket 10. As described the bucket portion 10 has a box 11 by which it is attached to the kelly bar of a rotary drilling machine, and has a door 12 hinged to its lower end, the door 12 being released by a catch (not shown) to discharge spoil from the bucket. The cutters 16, 17 are pivoted to the bucket 10 and are held in their cutting position, in which they project through openings 22, 23 in the bucket 10, by springs 18, 19. Each cutter 16, 17 is provided with replaceable cutting teeth 21 and is hollow and angled so that spoil passes through the cutter into the bucket 10. Each cutter 16, 17 can be held in its retracted position, to allow the device to be lowered down a hole, by means of a wedge 25 jammed between the cutter 16 (17) and the top edge of opening 22 (23) as shown in Fig. 4. The wedge 25 is fixed to a camming arm 24 and can be removed by pulling on cord 26.
Patent GB-365262-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M50/262
Filed: 1930-12-08
Abstract: 365,262. Wrappers or cases for electric batteries. EVER READY CO. (GREAT BRITAIN), Ltd., Hercules Place, Holloway, and SHEPPARD, A. H., Beechwood, Broad Walk, Winch more Hill, both in London. Dec. 8, 1930, No. 36957. [Classes 18 and 94 (ii).] A wrapper or case for a dry battery is made from a blank of the shape shown in Fig. 1. The flaps f, g and tongues h, j are folded under the bottom of the battery as shown in Fig. 2 and the overlapping parts e, a are then fixed together by adhesive, tongues and slots or other means. The flap g may be shaped to the bottom of the battery. The blank may be folded directly on the battery or over a core which can be removed, the battery being then inserted in the finished casing. The wrapper or casing may be of greater height than the battery, the space above the battery being filled with sealing material.
Patent GB-1156009-A (GB)
Title: Improvements in or relating to Insulated Roof Structures.
Inventor: PRATER FREDERICK JOSEPH
IPC: E04D13/16
Filed: 1966-08-18
Abstract: 1,156.009. Flat roof structure. F. J. PRATER ASPHALTE CO. Ltd. 18 Aug., 1967 [18 Aug., 1966], No. 36999/66. Heading E1W. An insulated flat roof structure comprises mastic asphalt or roofing felt 8 laid over slabs 5 supported on cast in situ cement mortar strips 4 of decreasing thickness from a side wall 2 to a central gulley 6, ducts 9 so formed being ventilated.
Patent GB-1486082-A (GB)
Title: Process for stabilizing manufactured products obtained from acetal polymers
IPC: C08J7/06
Filed: 1975-09-09
Abstract: 1486082 Surface treating polyacetals SOC ITALIANA RESINE SIR SpA 9 Sept 1975 [10 Sept 1974] 37045/75 Heading C3P Manufactured products obtained from formaldehyde polymers or copolymers of MW at least 10,000 and a crystallinity degree as measured by X-rays of at least 65%, are stabilized by treating the product at 80-170‹ C. with a solution of one or more stabilizers for the polymer or copolymer in a liquid and homogeneous mixture consisting of 50-98% by wt. of substance inert (non-reactive) and non-solvent for the polymer and 50-2% by wt. of substance inert and solvent for the polymer or copolymer, and removing the solvent and non-solvent substances from the surface of the product. The stabilizer, preferably present in the solution in an amount of 0À1-10%, or 1-5% may be an antioxidant or UV absorber.
Patent GB-1140971-A (GB)
Title: Improvements in or relating to hydraulic steering devices
IPC: B62D5/32
Filed: 1966-08-18
Abstract: 1,140,971. Hydrostatic steering mechanism. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 18 Aug., 1966 [19 Aug., 1965], No. 37068/66. Heading B7H. In hydrostatic steering mechanism including a steering shaft 1 which is rotated to actuate a positive displacement pump 9, 10 and to displace a valve spool 5 axially of a fixed housing 3 having motor ports 11, 12 connected to a steering motor 102 through flexible pipes 11<SP>1</SP>, 12<SP>1</SP>, excessive pressures in the flexible pipes 11<SP>1</SP>, 12<SP>1</SP> are relieved by spring-loaded ball valves 54, 54<SP>1</SP> in passages 52, 53 between the ports 11, 12 and a return flow chamber 49. As shown, power assistance is provided by a pump 24 supplied by a reservoir 25, but the pump may be omitted and steering effected by manual effort alone. The ball valves 54, 54<SP>1</SP> and their springs 55, 55<SP>1</SP> are inserted in identical bores 56, 56<SP>1</SP> closed by a bearing flange 2 on the housing 3. When the spool 5 occupies the neutral position shown, fluid delivered by the pump 24 to a groove 46 flows through a pipe (not shown) to a groove 35 communicating with the return flow chamber 49. When the spool 5 is displaced in either direction, communication between the groove 35 is cut off a fluid from the groove 46 flows through an annular groove 31 or 32 and longitudinal groove 80 or 81 to one set of radial bores 78, 79 connected through passages 74 to the pump 9, 10. An amount of fluid proportional to the degree of rotation of the shaft 1 is delivered by the pump 9, 10 through the other set of passages 78, 79 and longitudinal grooves 80, 81 to a groove 30 or 33 communicating with the motor 102 through one of ports 11, 12. The other port 11, 12 is simultaneously placed in communication with the return flow chamber 49 through a groove 34 or through a slot 82, a space within the spool 5 and radial bores 48.
Patent GB-371327-A (GB)
Title: Improvements in and relating to pressure fluid containers
IPC: F17C1/08
Abstract: 371,327. Storing fluids under pressure. DEBOR, H. and DEBOR, R., 2, Stievestrasse, Munich, Germany. Oct. 16, 1930, No. 31027. Convention date, Feb. 4. Addition to 364,675. Void [Published under Sect. 91 of the Acts]. [Classes 8 (ii) and 99 (ii).] A container for fluids under pressure comprises a series of spherical parts joined together at waists, the distances between the waists being equal to their diameters.
Patent GB-633089-A (GB)
Title: Die or tap holder
IPC: B23G1/46
Filed: 1946-12-17
Abstract: 633,089. Screw - threading. RAMSEY, A. R. J. (Speickhoff, L. T.). Dec. 17, 1946, No. 37139. [Class 93 (iii)] A die or tap holder for use on turret lathes &c. comprises a body member 10 adapted to be held immovably during a threading operation and formed with a bore for the reception therein of a slidable and non-rotatable toolcarrying member 11 which is advanced in the bore solely by the threading action of the tool on the work, stop means being provided for limiting the axial movement of the member 11. The member 11 is prevented from rotating by rollers 22 engaging slots 12 in the body and mounted on pins 20. The latter have extensions 21 which, operating between stops 24, 25 in threaded engagement with the body, limit the axial movement of the tool. At the end of a thread-cutting operation the die or tap is disengaged from the work and retracted by springs interposed between the body and the member 11.
Patent GB-1309509-A (GB)
Title: Motor and manually operated control device for circuit-breakers
IPC: H01H71/70
Filed: 1971-08-09
Abstract: 1309509 Automatic circuit-breakers; actuation of switches MERLIN GERINE 9 Aug 1971 [10 Aug 1970] 37377/71 Heading H1N A motor and manually-operable control device for a circuit-breaker having a pivoted operating lever 26 controlled by a slide 30 and movable abruptly into the contacts-closed position upon the release of a charged spring 44 by operation of a catch member 60, comprises a rotary member 74 with a manually- or motor-controlled unidirectional, intermittently movable cam 96 co-operating during opening movement of the handle with a roller 48 on the slide 30 and disengaging therefrom at the end of the opening movement to allow the slide to be moved in the opposite direction when spring 44 is released the spring being charged during said opening movement. Member 74 is moved by an electric motor 66, Fig. 4 (not shown), or by a lever 86, via respective riders 72, 82, on the flange of the member 74 and serving alternately as driving element or retaining element in similar fashion to the disclosure of Specification 1,103,239. A declutching lever 90 is acted upon via an adjustable stop screw 108 on a lever 104, when the latter is engaged by a pin 102 or cam 96 at the end of the spring charging movement, to interrupt the mechanical connection between the motor 66 and the member 74 and allow the motor to stop freely upon its simultaneous deenergization by cam 96 operating a microswitch 100. Catch 60 is released by manual actuation of a push rod 116 via its button 114 or electromagnetically by solenoid device 110 attracting the tail 112 of catch 60. A changeover switch 160 has an actuating lever 162 which so cooperates with lever 90 that motor 66 can be energized only when lever 90 is in its inoperative position and that device 110 can be energized only when lever 90 is in its operative position. The electrical supply connections are completed when a pivotally mounted terminal block 126 plugs into a terminal block 124 upon depression of a button 130, Fig. 5, and the blocks are latched together by a projection 136 only if the mechanism fixing screw 18 is tightened correctly. Without correct plugging in of block 126, neither motor 66 nor device 110 can operate, and further means prevent operation of rod 116  until a surface 156 of block 124 causes a member 148 to release the slider 122 by which rod 116 releases the catch member 60. A keyoperated locking arrangement, Figs. 6, 7 (not shown), locks block 126 in its unplugged position only when the circuit-breaker is open. An indicator is provided for this.
Patent GB-1062023-A (GB)
Title: Concrete preparation plant
IPC: B28C9/00
Filed: 1963-09-25
Abstract: 1,062,023. Concrete mixers. KABAG-KARLSRUHER BAUMASCHINEN G.m.b.H. Sept. 25, 1963 [Sept. 25, 1962], No. 37644/63. Heading B1C. [Also in Divisions B8 and G1] The frame of a concrete preparation plant is in two parts 1, 2 independently adjustable on supports 3 for height, the plant comprising a scraper unit 15 for feeding aggregates from a partitioned stockpile 9 and a common wall 14 around the stockpile having corresponding to each partition a feed opening 17 with a door 16 leading to a skip 18. The skip is suspended at its bottom position in a weigher 20 having an indicator 21, and is hauled by a winch 23 along guide rails 19 to a top position where it tips its contents into a feeder 25 of a rotary mixer 27 which is driven by a motor 28 and has a discharge funnel 32. The wall 14 and intermediate sections 22 of the guide rails 19 are interchangeable according to the distance between the parts 1 and 2. A weigher 30 is supplied beneath a cement inlet 29 to which cement is supplied by a screw conveyor (not shown) and a feeding device for water is provided in the part 2. The base part 1 may be fitted with wheels and brackets 8 may be provided on the supports 3 so that the plant may be lifted as a whole. A storage hopper (not shown) may be provided beneath the funnel 32.
Patent GB-1178287-A (GB)
Title: Method of Operating a Blast Furnace.
Inventor: BAILEY ERVIN GEORGE
IPC: C21B5/00
Filed: 1967-08-16
Abstract: 1,178,287. Blast furnace process. BAILEY INVENTIONS, Inc. Aug.16, 1967, No.37816/67. Heading C7D. [Also in Division F4] In a blast furnace process for extracting iron the solid carbonaceous fuel is encased in a multiplicity of individual gas-impervious containers made of metal having a melting point greater than 2200‹ C., so that the fuel remains out of contact with oxidizing agents until it reaches the hot reduction zone of the furnace. By this means the latent heat of the waste gases may be recovered in the furnace by combusting them with secondary air admitted to the upper preheating zone of the furnace. The containers may be made of iron, steel, or a metal which alloys with the iron produced. In the particular embodiment described and illustrated, the additional heat recovered by the invention is used in part to preheat both the primary and secondary air supplies by means of a double air heater surmounting the furnace.
Patent GB-1163266-A (GB)
Title: Modified Polyolefines
Inventor: LEES GERARD
IPC: C08G69/02
Filed: 1966-08-24
Abstract: 1,163,266. Dyeable polyolefin compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Aug., 1967 [24 Aug., 1966], No. 37980/66. Heading C3P. [Also in Division D1] Compositions having high affinity for acid dyes are prepared by mixing a stereoregular polyolefin and a basic polyamide, polyurethane, polyurea, polyester or polyaminotriazole, some or all of the basic groups in the basic polymer having been converted, before mixing with the polyolefin, to the form of a salt of a strong acid having a first dissociation constant of at least 10<SP>-3</SP> in water at 25‹ C. The polyolefin may be polyethylene, polypropylene or poly-4-methylpentene-1. Basic polymers may be prepared by condensing dicarboxylic acids and an amine having at least three amino groups not more than two of which are primary, optionally with diamines, amino acids or lactams; diisocyanates and diols containing basic groups, optionally with other diols; dicarboxylic acids and diols containing basic groups, optionally with other diols; and dicarboxylic acids with hydrazine, many suitable reactants being listed. Specified acids are mineral acids, inorganic or organic oxyacids of phosphorus, halogenated lower aliphatic monocarboxylic acids and lower aliphatic dicarboxylic acids. The compositions may be made into fibres, filaments, films, mouldings and extrusions. Examples describe compositions of polypropylene and polyamides prepared from sebacic acid, hexamethylenediamine and diethylenetriamine and converted to salt with (1 and 2) hydrochloric acid and (3) phosphoric acid; and a polyamide prepared from adipic acid and bis-(hexamethylene) triamine and converted to salt with phenylphosphonic acid.
Patent GB-1351304-A (GB)
Title: Acrylonitrile copolymers
IPC: C08F2/22
Filed: 1971-08-13
Abstract: 1351304 Production of acrylonitrile copolymers TORAY INDUSTRIES Inc 13 Aug 1971 [13 Aug 1970 30 Sept 1970 8 Oct 1970] 38071/71 Heading C3P An acrylonitrile polymer is formed by polymerizing a mixture of 80 wt. per cent or less of acrylonitrile, 80 wt. per cent or less of a monomer more hydrophobic than aerylonitrile and 10 wt. per cent or less of a monomer more hydrophilic than acrylonitrile in a medium which is a homogeneous mixture of dimethyl sulphoxide and water, so as to cause the copolymer to form an emulsion of non-agglomerated particles in the medium. The lower limits for the monomers are preferably 19À7 wt. per cent or more of acrylonitrile, 19À7 wt. per cent or more of the hydrophobic monomer and 0À3 wt. per cent or more of the hydrophilic monomer. The weight ratio of D.M.S.O. to water is preferably 85 : 15 to 60 : 40. Examples of the "hydrophobic monomer" are styrene, vinyl acetate and other vinyl esters, a vinyl ether, vinyl chloride, vinylidene chloride, methacrylonitrile, a C 5-8  alcohol ester of acrylic or methacrylic acid or a mixture of any of these. The hydrophilic monomer preferably contains a sulphonic acid group, or sulphonic acid salt group. Examples of such monomers are sulphoalkyl, sulphocyclohexyl, or sulphophenyl acrylates and methacrylates, styrene sulphonic acids, methallyl sulphonic acid, N-sulphophenyl methacrylamides, methallyl-sulphophenyl ethers; the Na, K or amine salts thereof, and mixtures thereof. A list of specific examples is given. The polymers are used to produce flame retarded fibres. The polymerization is carried out in the presence of the usual initiators (bisnitriles, peroxy compounds and redox systems).
Patent GB-1430730-A (GB)
Title: Reductive decomposition of oxides of nitrogen
IPC: B01J21/06
Filed: 1974-08-30
Abstract: 1430730 Reduction of nitrogen oxides MITSUBISHI CHEMICAL INDUSTRIES Ltd 30 Aug 1974 [10 Sept 1973 9 Oct 1973 11 Oct 1973 15 Oct 1973] 38113/74 Heading C1A [Also in Division B1] The reductive decomposition of nitrogen oxides in a gas is accomplished by treating the gas with ammonia in the presence of a catalyst containing as active ingredients vanadium oxide supported on a carrier formed at least externally of one or more of TiO 2 , ZrO 2 , CeO 2  and γ-Al 2 O 3 . Thus V 2 O 5  may be supported on a carrier formed of one or more of the other oxides above, or it may be supported on a carrier formed of a heat resistant substance, e.g. alumina, silica-alumina, diatomaceous earth, silicon carbide, mullite or cordierite, coated with one or more of the other oxides above. The preferred reaction temperature is 150-650‹ C.
Patent GB-1389365-A (GB)
Title: Magnetic compass having remote digital readout
IPC: G01C17/26
Filed: 1973-08-13
Abstract: 1389365 Magnetic compasses LAITRAM CORP 13 Aug 1973 [28 Aug 1972] 38225/73 Heading G4H [Also in Division G1] A magnetic compass of substantially identical construction as that of Specification 1,321,212 is disclosed and the description and claims include details of electronic read-out circuits of the compass. The photo-electrically read code disc (18), Fig. 1 (not shown), provides a Graycoded representation of the numbers 76 to 435 equivalent to angles 0-359 degrees, and this representation, e.g. x-degrees, is fed to a Gray-to-binary converter 70 with the most significant Gray code bit being inverted at 76, the output of the converter being a binary representation of the digit (511-x) which is fed to preset a counter 72. A first, slow clock 80 causes this presetting to take place at regular intervals and starts a fast oscillator 87 which passes pulses both to the counter 72 and to an output counter 86 and display 88. When a count of 436 is reached at 72, decoder 74 stops oscillator 78 and the reading at 88 is the reading in degrees. Thus if 0 degrees reading, a count of 435 is passed to counter 72 and the first pulse from clock 80 causes the oscillator to be stopped, and the counter 86 to be reset to display 0 degrees at 88.
Patent GB-907533-A (GB)
Title: Device for starting and synchronizing at least one receiver with a transmitter of a synchronous tie with non-synchronous machines
IPC: H02P1/16
Filed: 1959-11-11
Abstract: 907,533. Control of several A.C. motors. BROWN, BOVERI & CIE A.G. Nov. 11, 1959 [Nov. 11, 1958], No. 38278/59. Class 38 (3). In a system for enabling a receiver E2 to be brought into synchronism with a transmitter G, driven by a machine A, and a receiver E1 already in operation, the stator and rotor of a frequency converter F are connected in the rotor circuit of E2 by way of switches a and b, and switches c and d are provided in the rotor and stator connections of E2. In operation, F is coupled to machine A by way of a clutch K and brought up to synchronous speed. Switches a and b are then closed, and the clutch disengaged and a brake B applied so that the converter speed drops whereby the frequency of the voltage passing to the rotor of E2 falls causing the rotor to rotate. When F is at a standstill E2 attains synchronous speed and the switch c is closed to connect E2 directly to the transmitter G, and receiver El. Switches a and b are then opened. The converter can then be used to connect other receivers in circuit.
Patent GB-1086537-A (GB)
Title: Improvements in or relating to the drilling of deep boreholes in the earth
IPC: E21B7/18
Filed: 1964-09-22
Abstract: 1,086,537. Jet-drilling. GULF RESEARCH & DEVELOPMENT CO. Sept. 22, 1964 [Sept. 24, 1963], No. 38542/64. Heading E1F. In the jet drilling of a borehle in the earth, the hydraulic cutting fluid used is so processed on leaving the borehole that fines and earth are removed therefrom before it is reconstituted by adding thereto discrete particles of one of the constituents of the fluid in size and concentration to allow of optimum cutting efficiency of the jet drill in the borehole when the fluid is recirculated. Specific details of the hydraulic cutting fluid are given.
Patent GB-358816-A (GB)
Title: Improvements in and connected with cuffs of shirts and the like
IPC: A41B7/10
Filed: 1930-12-22
Abstract: 358,816. Shirt &c. cuffs. WADDING- TON, M., 13, Hilda Terrace, Hospital Lane, Boston, Lincolnshire. Dec. 22, 1930, No. 38592. [Class 141.] The cuff A of a shirt, shirt blouse, overall, &c., is connected to the sleeve B along the median line C, or one-half of the cuff is formed integral with the sleeve, and the other half is attached thereto to enable the cuff to be folded to present different wearing surfaces, the sleeve of the shirt &c. being cut away, as shown at B, to permit the passage of the cuff-links &c.
Patent GB-1389749-A (GB)
Title: Microwave device
IPC: H03B9/14
Filed: 1972-08-18
Abstract: 1389749 Semi-conductor oscillators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Aug 1972 [23 Aug 1971] 38633/72 Heading H3T [Also in Division H1] A microwave device comprises a tube of insulating material closed by first and second contact members, the first contact member having two mutually insulated parts, a semi-conductor diode having a negative microwave resistance mounted with one electrode on the second contact member and having the other electrode connected to the first and second parts of the first contact member by a first conductor and by a second conductor including a capacitive semiconductor element respectively. As shown, Fig. 1, an avalanche diode 3 is mounted on a cooling stud 2 and is surrounded by a ceramic tube 1 which is closed by a contact structure 5 comprising an annular plate 6 and a circular plate 7 separated by an insulating spacer 8, e.g. of mica. The top electrode of the diode 3 is directly connected to plate 6 by a conductor 4 and is connected to plate 7 by a conductor 10 in which is mounted a varactor diode 9 to provide means for tuning an oscillator for which the avalanche diode is the active element. In a modification the contact structure (5) comprises two semicircular plates and such a device may be mounted in a coaxial line the centre conductor of which is diametrically divided into two members, which are insulated from one another but are capacitatively coupled to provide a connection at microwave frequencies, to contact the semicircular plates, (Fig. 3).  The capacitive element may also be a Schottky or MIS diode.