baber/WOPTO huggingface dataset:
Patent GB-882657-A (GB)
Title: Improvements relating to electromagnetic multiple disc clutches
IPC: F16D27/115
Filed: 1959-04-17
Abstract: 882,657. Electromagnets. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. April 17, 1959 [April 19, 1958], No. 13198/59. Class 35. [Also in Group XXIV] In an electromagnetic multi-disc friction clutch of the stationary magnet type the polepiece 1 is of U-shaped cross-section and encloses the energizing coil 2 and a flux guide ring 6, both of trapezoidal section, the axial width of the latter being less at the outer than at the inner periphery, so that the radial flux density is substantially constant, the ring 6 having a non-magnetic annular core insert 7 of axially tapering sections and the discs 8 being formed with radially-corresponding non-magnetic annular zones 9. The internal plate-carrying sleeve 10 has an inner portion 11 of non- magnetic material and formed with a flange 12 to prevent flux leakage. In modifications, Figs. 3 and 4 (not shown), the cross-section of member 7 is of stepped form.
Patent GB-707156-A (GB)
Title: Improvements relating to mouldable magnetic materials
IPC: C22C28/00
Filed: 1951-06-04
Abstract: A mouldable magnetic material is formed by heating a mixture of a finely divided magnetic alloy, a finely divided metal or alloy of low melting point and a flux to a temperature above the melting point of the latter metal or alloy where by the former alloy is coated therewith.  The basic alloy may be an alnico alloy or may consist of 60 per cent. copper, 20 per cent. nickel and 20 per cent. cobalt. Such alloy may be powdered by spraying into a coolant in a protective atmosphere, The coating alloy may be 50 per cent. bismuth, 27 per cent. lead, 13 per cent. tin and remainder cadmium and preferably comprises 25-30 per cent. of the final material.  The flux may be fused zinc chloride, or, if the heating is carried out under super-atmospheric pressure, may comprise 2 parts H2SO4, 2 parts H, Cl, 25 parts Zn Cl2 and 100 parts water.  After casting, washing and drying, the product may be moulded at 180 DEG C. being cooled to 130 DEG C. before removal from the mould.
Patent GB-792906-A (GB)
Title: Improvements relating to safety control devices for gas burners
Inventor: NORWOOD HAROLD
IPC: F23N5/10
Filed: 1955-05-07
Abstract: 792,906. Controlling gas burners. SPERRYN & CO., Ltd. May 4, 1956 May 7, 1955], No. 13276/55. Class 75(1) A thermo-magnetic safety valve for a gas burner and of the kind incorporating a main valve 8, Fig. 1, controlling the supply of gas/from inlet 2 to the burner (not shown) connected to outlet 3 and an aligned and associated valve 14 controlling the supply of gas to a pilot jet 24, Fig. 2, both valves being normally held open during operation of the burner by an electromagnet 31, 32, energized bv a thermocouple 34, Fig. 2, exposed to the pilot jet flame, is adapted for use in an installation including a plurality of burners spaced apart with a separate control valve for each burner, by providing the body part 18 of the valve carrying gas for the pilot jet with two opposed connections 21 leading to and from a passage 20, Fig. 1, for the pilot jet supply and a connection 22 for an outlet pipe 23 leading to the pilot jet 24 disposed at right angles to the line of the connections 21. By this means, the separate valves for the burners can be mounted in line with aligned pipes 21 feeding the pilot jets in parallel. The pilot valve 14 is located below the main valve 8, the member 14 being carried on a stem 12 to which is secured a main valve auxiliary member 13 which closes the main gas supply between inlet 2 and outlet 3 when the main valve member 8 is manually held open by means of a push button 25, there being a lost motion between the member 12 and the member 11 carrying the main valve 8 and armature 28 of the magnet 31, 32 enclosed in a housing 30, when this magnet holds the armature 28 and the button 25 is released, the valve 8 is held off its seat 6 but the valve member 13 drops from its seat 7 and. the main valve is thus open, and at the same time, the pilot valve 14 is open since the lost motion between members 11 and 12 is insufficient to allow the valve 14 to sit on its seating 19. The valve 14 is formed as part of a diaphragm 15 held between the pilot valve body 18 and the main valve body 1.
Patent GB-543495-A (GB)
Title: Method or process of agglomerating and decarbonizing cast iron and steel borings, turnings and the like by means of sintering
IPC: C22B1/248
Filed: 1940-08-21
Abstract: 543,495. Agglomerating steel and cast-iron turnings etc.; scrap, consolidating decarburizing. GREENAWALT, J. E. Aug. 21, 1940, No. 13313. [Classes 72 and 82 (i)] [Also in Group XXII] Borings, turnings, filings, granules &c. of castiron are agglomerated and decarbonized by igniting the carbon content of the surface of the mass to which fuel such as coke breeze or anthracite duff may be added and drawing air through the latter so causing the mass to sinter and cake. A cake of a mixture of steel borings &c. and cast-iron borings may be similarly agglomerated and the cast-iron decarbonized or a cake of steel borings &c. mixed with fuel may be treated and the exposed part of the fuel being ignited at the surface and a cake produced. The extent of the de-carbonization of the cast-iron filings &c. may be controlled by regulating the amount of air used. Slag forming substances such as silica and lime may be added, as a binder, to the mass before treatment.
Patent GB-257025-A (GB)
Title: Methods and apparatus for determining distance by echo
IPC: G01S15/12
Filed: 1925-05-21
Abstract: 257,025. Fessenden, R. A. May 21, 1925. Determining bearings and distances acoustically.-In apparatus for measuring depths or other distances or for locating icebergs and other objects of the kind in which the emission of waves from a sound emitter is controlled by the echo, the returned impulses are arranged, after being suitably amplfied, to control the emission of signals without the intervention of any contact-making relay, so that the frequency of the emission is determined by the distance of the object and the emitted impulses are constituted by the previously received impulses amplified and reemitted. In the arrangement shown which is for measuring sea depths, an electromagnet or other type of oscillator 14, supported in a tank in the vessel 11 is arranged to send out a train of waves, which. after traversing a path 46, 47 are received by a microphone or similar receiver 16 mounted in a tank 15 within the area of the sound shadow produced by the side of the vessel. The receiver 16 is connected to an amplifier 18, from which the amplified currents pass through a frequency meter 20 to control the oscillator 14, the wave form of each succeeding impulse or group of impulses being substantially a reproduction of the wave form of the first impulse. The initial exciting of the oscillator may be produced by a generator 39 ,which takes no part in the control of the subsequent emissions. The frequency meter 20 may be calibrated directly in terms of the depth, and in place thereof, or in addition thereto, a telephone 19 may be employed, the note produced in it increasing in pitch and intensity as the water shoals. When the apparatus is used on an aeroplane for determining its height above the ground, the receiver may be in the form of a thermophone operating by the heating action of electric currents on a minute platinum or palladium wire and capable of being inserted in the observer's ear to cut out extraneous noises.
Patent GB-252721-A (GB)
Title: Improvements in and relating to electric power transmitting systems
IPC: H02K17/40
Filed: 1926-05-26
Abstract: 252,721. British Thomson-Houston Co., Ltd., (Assignees of Umansky, L. A.). May 26, 1925, [Convention date]. Equalizing load on generator.-A group of induction motors 12, 13, which have wound secondaries and may operate different elements of a rolling mill 10, have their secondaries connected through slip-rings to load-regulating machines 22, 23, 24. In the arrangement shown the machines are direct-current machines, and the transference of energy takes place through synchronous converters 19, 20, 21. The regulating machines are mechanically coupled to other direct-current machines 25, 26, 27, which deliver the surplus slip energy to direct-current motors 15, 16, 17 operating the final stages of the rolling mill. Each set of mechanically coupled machines further comprises one of a group of induction motors 28. 29, 30 acting as flywheel machines, and an exciting dynamo 31. In a modification two induction motors, one running above and one below synchronism, deliver slip energy respectively to two regulatable alternating-current commutator machines which are mechanically coupled to each other and to a flywheel machine.
Patent GB-375937-A (GB)
Title: Improvements relating to stuffing-boxes for motor driven pumps
IPC: F16J15/18
Filed: 1931-05-06
Abstract: 375,937. Stuffing-boxes; centrifugal pumps. YOUATT, C. S. and RHODES, BRYDON & YOUATT, Ltd., Waterloo Engineering Works, Gorsey Mount Street, Stockport. May 6, 1931, No. 13362. [Classes 110 (i) and 122 (v).] The impeller d of a motor driven pump may be moved axially into contact with the casing a to seal the stuffing-box b which may then be repacked without loss of pressure fluid. The motor is carried in a casing f which is moved axially by springs i when the bolts h are slackened back. A packing ring e of rubber, metal, or other suitable material may be provided to form a joint between the impeller and its casing.
Patent GB-1366839-A (GB)
Title: Method of manufacturing colour television camera tube
IPC: H01J29/89
Filed: 1973-03-20
Abstract: 1366839 Image pick-up tubes MATSUSHITA ELECTRONICS CORP 20 March 1973 [24 March 1972] 13398/73 Heading H1D A method of manufacturing a colour TV camera tube comprises forming a transparent conductive film and a photoresist film 15 successively on a fibre type face plate 11, which may have a concave inner surface, corresponding to the focal surface of the electron beam, selectively exposing the resist to light transmitted through the faceplate and an optical mask 16 on the outer surface of the faceplate and developing the resist to form narrow apertures in the resist, etching the conductive film to form stripe-shaped narrow apertures, removing the resist, superimposing a photoconductive film and disposing an optical filter having stripes for generating an indexing signal corresponding to the narrow apertures on the outer surface of the faceplate. Alternatively after development of the resist, a photoconductive film may be superimposed without removal of the resist, and an optical filter having stripes for generating an indexing signal corresponding to the stripeshaped resist, disposed on the outer surface of the faceplate. The conductive film may be tin oxide, resists are referred to by trade names, light 17 may be <3500  and via a collimator, and the photoconductive material of antimony sulphide or lead monoxide for example. The process, in which light is passed through the faceplate, is stated to overcome the effects of fibre plate shear distortions of 10 to 30Á and optical filter stripes of 20Á require overall high resolution.
Patent GB-162926-A (GB)
Title: Improvements in electric lanterns or the like
IPC: F21V19/02
Filed: 1920-05-15
Abstract: 162,926. Veritys, Ltd., and Thorpe, F. W. May 15, 1920. Holders.-In electric lanterns of the kind where. in the bulb-holder is carried by a member h adjustably secured to rods a, c, d whereby the bulb x can be adjusted with respect to the reflector g, the member h is provided with a hook h<2> adapted to engage the rod a and with a yoke j adapted to engage the rod c, d, the whole being clamped to the rods by means of a single screw l. The member h may comprise a straight bar, as shown in Fig. 2, or a ring provided with anti-vibration devices. The bulb holder may comprise two sockets i<2>, i<3> adapted to be used alternatively with bulb caps x<2> of different dimensions.
Patent GB-474918-A (GB)
Title: Improved dynamo electric machine
IPC: H02K57/00
Filed: 1936-05-12
Abstract: 474,918. Dynamo electric machines. FRAMPTON, H. L. May 12, 1936, No. 13416. [Class 35] An electric motor has a rotor formed of or containing magnetic material and a stator comprising a number of electromagnets with straight cores parallel to one another and to the rotor shaft which passes centrally through the group of magnets, the rotor having poles which pass the ends of each magnet, the flux of which acts on the rotor poles through magnet surfaces which are substantially perpendicular to the rotor axis. As shown in Fig. 1, the magnetic circuit of one magnet c is completed through the two rotors band the other magnet, but in an alternative construction, Fig. 3, the circuits of the magnets are independent. The rotor in this case may comprise separate U-shaped pieces of iron secured to the shaft by their bases or to discs on the shaft. In addition to the motoring windings d supplied with continuous or alternating current through a commutating device or with alternating current directly, secondary windings e are provided on the cores to supply alternating current of another voltage, which current may be rectified by a commutator. The primary and secondary windings on the different cores may be arranged for series or parallel connection. If the machine is supplied with continuous current, a higher frequency can be obtained from the secondary windings, by providing a rotor with a large number of poles, e.g., the rotor may have the form of a toothed wheel. Fig. 7 shows a self starting motor for continuous or alternating current having six magnets and a four pole rotor. Fig. 8 shows another self-starting motor having two groups of four stator magnets and a rotor with two sets of poles, each set consisting of a pair of iron bars mounted at an angle of 45 degrees to the other pair. The machine may be used as a motor driving a toy &c., and simultaneously as a converter or transformer supplying other apparatus.
Patent GB-501037-A (GB)
Title: Improvements in and relating to bolts and nut connections
IPC: F16B39/10
Filed: 1937-05-14
Abstract: 501,037. Bolts; locking bolts; cylinders. JUNKERS FLUGZEUG - UND - MOTOR - ENWERKE AKT.-GES. May 14, 1937, No. 13663. Void. Convention date, May 18, 1936. [Class 89 (i)] [Also in Group XXVII] The cylinder head 3 of an internal-combustion engine is secured in elastic contact at 14 with the liner 1 by long tiebolts 8 threaded at the lower end 7 for screwing into lugs 5 on the liner and threaded at the top for the securing nut 10; a hexagon part 12 is provided near the lower end enabling the torque for securing the tiebolt in the lug 5 to be applied near the thread 7 instead uf at the top end thus avoiding strain along the length of the tiebolt and a square port 11 is provided at the top for holding the tiebolt whilst tightening the nut 10. A separate washer 38, Fig. 2, may be provided for holding the end of the tiebolt against twisting whilst tightening the nut 45, the washer having flats to engage flats 36 on the tiebolt and wings 42 to engage recesses 44 in the abutment 40. A modified washer 53, Fig. 6, has a projection engaging a groove 55 in the tiebolt and sharp pointed projections 56 to penetrate the abutment 50.
Patent GB-217227-A (GB)
Title: Improvements in and relating to machines for centrifugally moulding concrete or likestructures, including pipes
IPC: B28B21/68
Filed: 1923-06-26
Abstract: 217,227. Watson, C. W. April 30, 1923, [Convention date]. Centrifugal machines.-A centrifugal moulding machine for reinforced or plain concrete pipes and other hollow bodies consists of a cylindrical, oval, or other mould 33, Figs. 1 and 2, having at each end an annulus 34 and a circular seat S-shaped to form spigot and socket or other ends on the article and interlocking with an annulus A. The stationary portion consists of pedestals P carrying rollers 9, 10 on which the rotating annulus A and outer mould are mounted. The upper rollers 9 are adjustable on carriers 5, Fig. 3. The inner rotating portion consists of a core C which may carry a reinforcement such as coiled wire spaced from the core by bars D, Fig. 18. wholly or partly encased in concrete as described in Specification 215,296. The wire is coiled on a cage formed of the bars D and end segments 72; when wound and ready for cutting, the wire is held in jaws 79, 82, Fig. 17. The core C consists of a shell formed of removable perforated segments 39, Fig. 7, and locking bars F carrying wedge plates 47 and with screw or bolt ends to engage the seats S or annulus A. The shell mav be formed of sheet material stiffened longitudinally and capable of radial contraction. The outer mould M, Fig. 2, has a plain or ornamental expansible shell 33 formed of arcs flanged and secured by clamp 60, Fig. 10. The ends are secured in segments 34 over which coned cramping rings 54 are passed and held by bolts 55. The driving means comprises a beltstriking gear 14 and a clutch 19. The fork 18 is actuated by a nut on a screw which is turned by a hand-wheel 17 and prevents rapid engagement of the clutch. The sliding portion of the clutch is actuated by a quadrant 23, worm shaft 27, and hand-wheel 30, and engages a coned portion 87 on the annulus A. Drainage from apertures 62, 63 is led by a scoop 65, Fig. 3, to a duct 64. The concrete is fed to the rotor by a tube or trough which is advanced and withdrawn by rack gear. Specification 215,298, [Class 99 (ii), Pipes, tubes, &c.], also is referred to.
Patent GB-623869-A (GB)
Title: Improvements relating to air pistols
IPC: F41B11/647
Filed: 1947-05-22
Abstract: 623,869. Air pistols. CLARKE (LEAD PRODUCTS), Ltd., F., and WALKER, W. J. May 22, 1947, No. 13749. [Class 119] A lever d pivoted to the handle c of an air pistol to increase its leverage during the cocking operation, has cam surfaces d<SP>4</SP>, d<SP>2</SP>, which respectively control the locking and unlocking movements of a catch e serving to lock the handle to the barrel casing a. The trigger g is formed integrally with a rearward extension g<SP>1</SP> against which a spring g<SP>2</SP> bears, and with a nose g3 which engages in the piston b. Pivoted to the handle is the trigger guard f whose fore part slides along the barrel casing in the operation of compressing the spring.
Patent GB-1055772-A (GB)
Title: Improvements in or relating to method and apparatus for agglomeration
Inventor: MILLER MARVIN DAVID
IPC: A23P10/22
Filed: 1964-04-02
Abstract: 1,055,772. Agglomerating edible matter. AMERICAN SUGAR CO. April 2, 1964, No. 13750/64. Headings A2B and A2E. A dry free flowing agglomerated edible material is obtained by subjecting a free falling curtain 28 of fine particles to jets of dry steam supplied by nozzles 25, to moisten the particles and then to jets of dry steam or air supplied by nozzles 27, to agitate the particles causing them to collide and agglomerate and thereafter drying and cooling the agglomerated material in drying chamber 38 and cooling chamber 39 respectively. The particles fall from supply bin 33 through vibrated basket 35 into agglomerating chamber 15 and down shoot 17 into drying chamber 38. The agglomerated material is passed by vibrating screen 40 through chambers 38 and 39 in which chambers the material is subjected to hot and cool air respectively, to outlet 44. Hot air from chamber 38 may pass through agglomerating chamber 15. The walls of chamber 15 may be heated to prevent condensation of steam. The nozzles may supply steam from the same or different sources. The nozzles may be horizontal or downwardly or upwardly inclined. The velocity of fluid from the nozzles 27 is greater than. that from nozzles 25. In the examples the matter agglomerated is cane sugar, cane sugar/corn syrup solids, sugar/gelatin, brown sugar, icing mixture (cane sugar/corn syrup solids/salt/ gelatin/gum arabic/egg albumen), sugar/ citric acid, sugar/coffee, sugar/cocoa/dry milk, cane sugar/cocoa, sugar/cocoa/ starch, sugar/skim milk powder, corn syrup solids, sugar/sweetener (e.g. sodium or calcium cyclamate or saccharin), sugar/ edible gum/sweetener and sugar/gelatin/ sweetener.
Patent GB-667123-A (GB)
Title: Means for measuring and registering wind energy
IPC: G01L5/14
Filed: 1949-05-24
Abstract: 667,123. Electric measurements. LANNEFORS, L., and ALLMANNA SVENSKA ELEKTRIEKA AKTIEBOLAGET. May 8, 1950. [May24, 1949] No. 13793/49. Class 40 (i). In a'device for measuring wind energy, a rotating member delivers a unidirectional voltage directly proportional to wind speed to an integrating meter through a non-linear impedance, the current-voltage characteristic of which follows the same law as that relating wind power and wind speed. As shown in Fig. 1, a known form of wind gauge 1, e.g. of the impulse generator type, converts wind speed into a unidirectional voltage proportional thereto which is applied to an ampere-hourmeter Ah over a non-linear resistor 3 having a voltage-current characteristic (cubic, according to the Provisional Specification) so that the meter input varies linearly with wind power. At a limiting maximum wind speed a relay 5 connected across the generator 1 disconnects the meter from the generator and connects it to a source 8 of constant potential. The lower limit of the operating range of the meter is effected by known magnetic blocking means fitted to the meter to prevent rotation thereof unless the input exceeds a predetermined value. The non-linear resistor may be replaced by a transductor 14, Fig. 2, in which case the unidirectional output voltage from the wind gauge 1 energizes an excitation winding 21 of the transductor in opposition to an adjustable biassing excitation applied to a winding 18 fed from the secondary 13 of a.transformer 10 through a rectifier 19. The resultant effect of the two D.C. windings varies the A.C. in the main transductor winding fed from the transformer secondary 12 in series with a resistor 15 and iron filament lamp 16, and the output voltage of this winding operates the integrating meter 4 through a rectifier 22. The transductor may be self-excited as in Specifications 634,653, 632,278, [both in Group XXXV], to enhance its sensitivity. In another embodiment, Fig. 3, the transductor 28 is series connected with the meter 4 and has three D.C. windings 32, 30, 35. The winding 32 has a constant bias excitation from the transformer secondary 25 and rectifier 33, the winding 30 is excited by the rectified output of the transductor and the winding 35 is fed through a rectifier 37 by the differential current from the wind gauge 1 and the rectified constant output current from transformer secondary 27. The rectifier 37 causes the excitation of winding 35 to fall to zero when the current from the wind gauge 1 exceeds the constant comparison current from rectifier 38, i.e. the transductor output to the meter is constant for wind speeds in excess of the upper limit. The characteristic curve of the transductor is made the desired shape by varying the smoothing of the excitation current, the self-excitation or the voltage in the A.C. circuit thereof. Figs. 5, 6 (not shown) illustrate further transductor arrangements for ensuring operation by the wind-gauge output only between predetermined limits thereof.
Patent GB-272876-A (GB)
Title: Process for the manufacture of fructose from inulin
IPC: C13K11/00
Filed: 1927-05-23
Abstract: 272,876. Chemsiche Fabrik auf Actien, vorm. E. Schering. June 15, 1926, [Convention date]. Levulose.-An aqueous pulp of commercial inulin is treated with a volatile organic acid such as formic acid, acetic acid and carbonic acid. The syrup obtained mav be treated with decolorizing charcoal and is concentrated to obtain the levulose direct. When carbonic acid is employed the process is carried on in autoclaves.