baber/WOPTO huggingface dataset:
Patent GB-634024-A (GB)
Title: Improvements relating to liquid fuel injection nozzles for internal combustion engines
IPC: F02M61/10
Filed: 1948-03-08
Abstract: 634,024. Fuel injectors. C.A.V. Ltd., and NICOLLS, W. E. W. March 8, 1948, No. 7068. [Class 7 (iii)] A fuel injector providing a preliminary and main injection, comprises a valve c integral with or connected to a hollow spring-loaded plunger f containing in its bore a spring-loaded plunger i carrying a valve k closing a bore m connected by an orifice n to the fuel injection chamber d. The valve c opens at a comparatively low pressure at the beginning of the injection period, and when the fuel pressure rises to a value determined by the spring j, the plunger i is forced against a stop o, opening the valve k to allow fuel pressure to act in the bore s to close the valve c. After a further rise in pressure in the spaced, the valve c reopens for the main injection. Leakage of fuel past the plungers is drained away through an outlet p.
Patent GB-491031-A (GB)
Title: Improvements in or relating to resilient attachment devices for wire ropes or the like
IPC: F16G11/00
Filed: 1937-03-10
Abstract: 491,031. Shock - absorbing devices. LLOYD, H. D. L. March 10, 1937, No. 7091. [Class 78 (ii)] [Also in Groups XXV and XXXII] In a resilient attachment device particularly adapted for securing balance ropes to mine cages, the end of the rope d, Fig. 2, is mounted in a casting or forging a which is connected by pairs of pivoted links g<1>, g; h<1>, h, Fig. 1, to a pair of supporting plates e, e<1> secured to the cross-bearer f beneath a cage. The links g<1>, h<1> are forced apart by a compression spring i. The member a is formed with a vertical tapered bore at the bottom of which is provided a seating for a self-aligning spherical ball race &. A conical socket c attached to the end of the rope d and provided with a dust excluding flange c<1> rotates freely in the bore and rests on the race b. The member a may be made in halves with flanged joints for bolting together in order that the rope end may be fitted with ball bearing and socket without having first to be threaded through the casting. In a modification the member a, Fig. 4, has a bore through which passes a swivel member k. The head k<1> of the member k rests on a bearing b, and its lower end is pivoted to a pair of links m, m<1> which carry between them a thimble n around which the rope d is passed.
Patent GB-725972-A (GB)
Title: Improvements in or relating to bar expansion regulators
IPC: G05D23/275
Filed: 1953-03-16
Abstract: 725,972. Temperature-responsive actuating- elements. BURKERT, C. March 16, 1953 [March 14, 1952], No. 7261/53. Class 64 (2). [Also in Groups XXXVII and XXXVIII] The tube of a rod-andtube temperature regulator houses a further temperature-sensitive element, e.g. a thermocouple or resistor, for indicating the temperature electrically. Fig. 1 shows a metal tube housing a glass, quartz or ceramic rod or bar 2, the differential expansion of tube and bar controlling switch contacts 7 or other means which, in known manner, regulate the tube temperature. The hot junction 13 of a thermocouple is disposed in a recess at the bottom of the bar 2, the wires 5 of the thermo couple passing through individual channels in the bar. The cold junction (not shown) is maintained at constant temperature by a heater and thermostat 12, and the wires 5 feed a local temperature indicator 10, and, through terminals 8, 9, a remote indicator. In an alternative construction, a temperature-sensitive resistor is wound round the lower end of the bar 2.
Patent GB-526014-A (GB)
Title: Improvements in and relating to electric chokes
IPC: H01F27/34
Filed: 1939-03-06
Abstract: 526,014. Inductances. BRITISH THOMSONHOUSTON CO., Ltd. March 6, 1939, No. 7279. Convention date, March 5, 1938. [Class 38(ii)] Relates to a choke arrangement comprising two three-phase chokes I, II, Fig. 2, connected in parallel and having windings connected respectively either in delta and star as shown, or in such a way as to give a similar phase relationship between the. core phases, and employed for reactance compensation in a supply system, the cores being operated near saturation to give an inductance which varies in dependence on the applied. voltage, and consists in suppressing the 3rd, 5th and 7th harmonic fluxes in the cores. In the form shown in Fig. 2, 3rd harmonic flux suppression in the choke I is effected by means of the main delta-connected winding W #  and in the choke II by means of an auxiliary delta-connected winding Wk. The separate cores may be replaced by three-three limbed cores, each core having a winding of each group arranged on it. The limb which carries the difference flux may be made smaller. In the form shown in Fig. 3a, each choke is provided with a main winding in delta connection, and the required phase relationship between the fluxes is obtained by connecting the winding U1, VI, W1 to tappings on the windings U, V, W. In a further modification two three-phase cores may be used, the cores preferably having either slotted yokes, reduced middle limbs, or one or more additional limbs to equalize the flux distribution.
Patent GB-1133545-A (GB)
Title: Improvements relating to quick indexing devices for meters, and more especially to reversible drives therefor
IPC: G01F15/06
Filed: 1967-02-15
Abstract: 1,133,545. Counting-apparatus. HERSEY SPARLING METER CO. 15 Feb., 1967 [16 Feb., 1966], No. 7283/67. Heading G4D. A register is advanced by snap action as soon as a driving member 78, which can operate in either direction, has moved to an extent representing a prescribed measurement.. A water meter drives a 4-pole ceramic magnet coupling (36, 38) (Fig. 2, not shown) to rotate a gear 72 through reduction gearing. A lug 78 on the gear 72 catches up a lobe 92 on an actuator 80 rotatable on the same spindle as gear 72. As the actuator 80 rotates a sharp lobe 86 engages a surface 100 to cam an arm 94, upwards in Fig. 3, against the action of a spring 112. A lug 108 rides up to engage the next tooth 110 of a face gear 132 on the lowest numeral wheel 122 of a counter. As the lobe 86 passes top dead centre the spring 112 drives the arm 94 downwards, advancing the counter sharply and rotating the actuator 80 beyond the lug 78 (Fig. 5, not shown). A lug 111 on arm 94 prevents movement of gear 132 by more than one step and a detent leaf spring (154) (Fig. 2, not shown) prevents accidental movement of the lowest numeral wheel. The counter comprises four numeral wheels with conventional transfer mechanism. Each wheel has a set of cams 134, 136, 138, 140 cooperating with gold-plated contacts 168 and common bar 170 to give binary-coded decimal read-out. The bar 170 may be common to all numeral wheels or there may be individual bars (Fig. 15a, not shown), to give parallel read-out.
Patent GB-1214747-A (GB)
Title: Improvements in and relating to valves
Inventor: STEHLIN THEODORE AUGUST
IPC: F16K31/143
Filed: 1968-02-14
Abstract: 1,214,747. Valves. ST-WEST Inc. 14 Feb., 1968, No. 7288/68. Heading F2V. A valve disc 96 may be actuated manually by a hand wheel 128 which rotates a spirallyslotted plunger 102 in engagement with a fixed pin 152 and may also be a fluid actuated by a piston 132 connected to the plunger by a rod 120. The pin 152 is threaded into a skirt 106<SP>1</SP> and secures the latter to the sleeve and the plunger. A flexible stem 94 accommodates misalignment between the plunger and the disc.
Patent GB-113049-A (GB)
Title: Improvements in Clutches.
Inventor: JOHNSON JAMES YATE
IPC: F16D37/00
Filed: 1917-05-21
Abstract: 113,049. Johnson, J. Y., (L. & H. Clutch Co.). May 21, 1917. Clutches and speed-varying mechanism. - Clutches comprise a member 2 with abutments 13, 14 mounted on a driving-shaft 1, and a member 7 coupled to a driven shaft 24, the space between the members being filled with a mass of material consisting of graphite and asbestos or other fibrous material with or without glycerine. The drive is obtained by projecting plungers 8 operated by levers 15 pivoted at 16 and connected to a sliding sleeve 19. Blocks 28 having keys 29 entering slots 30 in the sleeve are secured to the member 7 by pins 31 and a screw 32. which preferably overlaps the pins. The plungers may be staggered, arranged in pairs, or may be parallel with the shaft 1.
Patent GB-476670-A (GB)
Title: Improvements in or relating to filter-bed tubes
IPC: B01D29/44
Filed: 1936-03-11
Abstract: 476,670. Filter-bed tubes. JAECKEL, G. March 11, 1936, No. 7394. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 12, 1936.] [Classes 99 (i) and 99 (ii)] A porcelain &c. tube a for vertical location in a filter-bed is provided with staggered longitudinally - disposed admission slots d, the cross-sectional area of each of which increases in an inward direction from the outer to the inner surface of the tube, and is formed on its periphery with annular ribs b which are provided with corresponding slots of less width than the said admission slots. The ribs b may be provided with transverse notches g communicating with the adjacent grooves c, and preferably both the upper and lower ends f of the slots ascend obliquely inwards. The ends of two such pipes are jointed by clips i which are secured to the pipe ends by cement &c. k and are drawn together by bolts l to compress a rubber &c. ring h interposed between the pipes.
Patent GB-817981-A (GB)
Title: Formed articles comprising expanded thermoplastic resinous materials and method for their formation
IPC: B32B27/00
Filed: 1957-03-06
Abstract: An expandable mass for the formation of foam structures comprises a thermoplastic resinous material in particle form containing a blowing agent, the particles being coated with a non-volatile polymeric bonding agent which flows at a temperature lower than the foaming temperature of the mass.  The foam is prepared by preforming the mass to a coherent, further expandable form by heating at a temperature in the range from the flow temperature of the bonding agent to the foaming temperature of the mass, and finally heating to a foaming temperature.  The preforming may be effected at the foaming temperature to give a limited pre-expansion, and it may be performed by moulding, calendering, extruding, &c.  The bonding agent may be applied to the particles in the form of a solution, dispersion or suspension, in which case the coated particles are dried before preforming, or conventional dry blending methods may be employed. Specified solvents are acetone, carbon tetrachloride, monomeric styrene and vinyl toluene.  Suitable thermoplastic materials are polymers of vinyl aromatic compounds, particularly styrene, but including also a -methyl styrene, vinyl toluene, ar-dimethyl styrene, and mono- and di-chlorostyrenes, copolymers thereof with, for example, vinylidene chloride, and cross-linked copolymers containing small amounts of divinylbenzene; polymers of acrylic compounds, e.g. methyl methacrylate and ethyl acrylate, and their copolymers with, for example, vinylidene chloride; polymers of vinyl acetate or vinyl butyral; and cellulose derivatives such as the nitrate and acetate. The coated particles generally comprise from 0.5 to 20 per cent by weight of bonding agent.  Suitable bonding agents are the relatively lower molecular weight polymers, e.g. polystyrene having a molecular weight of from 10,000 to 40,000, latexes of styrenebutadiene copolymers, copolymers of butadiene and acrylonitrile containing at least 55 per cent of butadiene, vinyl acetate-methyl methacrylate copolymers, polyvinyl chloride, which may contain a plasticizer, and polymers of dichlorostyrene, vinyl toluene, isobutylene, methyl acrylate and methacrylate and acrylonitrile.  Specified blowing agents are dichlorodifluoromethane, carbon dioxide and low-boiling hydrocarbons such as pentane.  The Specification refers to many applications of the foamed materials.
Patent GB-542803-A (GB)
Title: An improved means for flanging the ends of malleable pipes or tubes for jointing purposes
IPC: B21D19/08
Filed: 1940-04-26
Abstract: 542,803. Flanging tubes. HILL, E. April 26, 1940, No. 7541. [Classes 83 (iii) and 83 (iv)] Portable turning apparatus.-A malleable pipe particularly for connecting by a coupling nut to another pipe or to a tap or cock, or a cylinder such as a deep drawn seamless can, is formed with a folded over integral end collar by a tool comprising a screw threaded mandrel for fixing the pipe with a part extending beyond the end thereof, and a number of interchangeable rotatable forming members of which at least one is double-ended, each member being screwed on the mandrel to effect a feed movement during rotation thereof. A seamless copper or aluminium pipe may be flanged by first fixing the pipe by gripping jaws 17 to a threaded mandrel 16 on which is screwed a tool 19 having on one end a pair of tapered parts 20, the tool being rotated mechanically or by hand. The tool is then reversed and the flange made normal to the pipe by the other end of the tool which is formed with two surfaces 23 with bevelled edges 24. This tool is then removed and replaced by a tool 25, Fig. 7, having two working surfaces 27 backed off at 28 for turning down the flange on to the exterior of the pipe. Further feeding of the tool causes the surfaces 29 to flatten or otherwise shape the end surface of the pipe and collar. The other end of this tool 25 may be provided with a cutter 30 which may be used to engage the end of the pipe to clean it prior to flanging. In another form for small pipes, the pipes 34, Fig. 10, is fixed by jaws 33 in the split portion 35 of a die held in a vice. The die is threaded at 32 to engage a tool 37. The tool has a conical part 38 cut away at each side at 48 so as to form the flange 39. The tool is then replaced by a tool 43, Fig. 12, formed with a diametrical forming surface 44 to bring the flange normal with the pipe. After the tool 43 is removed the tool 37 is again applied in its reversed position so that the end provided with a complete internal annular rim 40 folds over the flange and the flat end surface 42 shapes the end. The tools may be provided with operating rollers and may be interchangeably fitted in a rotatable chuck or stock. The end of the pipe may be provided with a groove for jointing material.
Patent GB-1532103-A (GB)
Title: Method and apparatus for translating multiple frequency signalling
IPC: H04Q1/45
Filed: 1977-02-23
Abstract: 1532103 Frequency detection NORTHERN TELECOM Ltd 23 Feb 1977 [3 March 1976] 07674/77 Heading G4H A multiple frequency signalling receiver comprises input means 1-2 for receiving voice frequency signals; means 2a, 2b for filtering the received signals into separate high and low bands; means, e.g. 18-19, for generating high band and low band threshold levels 16a, 16b in response to the amplitudes of signals in the high and low bands respectively; a high band detector 10a including a high band digital circuit 20 for detecting ones of predetermined frequencies of the signals in the high band and for indicating the frequency detected; first means 15 responsive to the low band threshold level 16b to transmit to the high band digital circuit only those signals in the high band which exceed the level 16b; a low band detector 10b including a low band digital circuit for detecting ones of predetermined frequencies of the signals in the low band and for indicating the frequency detected; second means responsive to the high band threshold level 16a to transmit to the low band digital circuit only those signals in the low band which exceed level 16a; and output means 6, 25, 28, &c. for indicating the frequencies detected in response to a simultaneous and constant indication of frequency detection from both detectors extended over a predetermined period of time.
Patent GB-806941-A (GB)
Title: Lightweight composite soleplate
Inventor: JEPSON IVAR
IPC: D06F75/38
Filed: 1955-03-16
Abstract: 806,941. Hand irons. SUNBEAM CORPORATION. March 16, 1955, No. 7676/55. Class 138 (2). A sole plate for a hand iron comprises a main cast body portion 14 of a metal of high thermal conductivity, and a thin covering including a sheet 27 of hard substantially scratchproof metal secured to one face of the body portion, the covering being provided with a plurality of projecting members 31 embedded in the body portion in interlocking engagement therewith. In the example the body portion 14 is of aluminium and has an embedded heating element 15 comprising an outer steel sheath 17. The sheet 27 is of stainless steel and has a thin sheet 30, e.g. of cold rolled carbon steel bonded to it by copper brazing in an atmospherically controlled furnace. The sole plate is manufactured in a mould comprising upper and lower sections 11 and 12 and gated at 41. A peripheral extension 27b of the sheet 27 prevents molten metal from entering the cavity beneath this sheet and is subsequently cut away. Specification 806,942, [Group XXII], is referred to.
Patent GB-161057-A (GB)
Title: Improvements relating to the working of furnaces having fire grates
IPC: F23H11/00
Filed: 1920-03-15
Abstract: 161,057. Wallace, W. M., and Wood, W. R. March 15, 1920. Stoking.-The riddlings from a furnace grate are withdrawn by suction from the ash-pit, and returned to the fire. As shown applied to a chain grate, the ashes fall upon a plate b below the grate, and are swept into the transverse hopper d, which is connected to one end of a pipe e, the other end of which delivers above the fire at f. The suction of a steam jet, or other device g withdraws the riddlings from the hopper d together with air drawn in at the opening h to prevent packing of the riddlings. The suction may be continuous or intermittent, and the riddlings may be delivered to the fuel hopper from which the furnace is stoked.
Patent GB-1104182-A (GB)
Title: Crystalline material
Inventor: SWINEHART CARL FRANCIS
IPC: F41G7/22
Filed: 1965-02-23
Abstract: An infra-red transmitting non-cleaving multi-component multi-phase crystalline body, in which the largest ratio of solid-phase refractive indices is 1-1.5, is produced by mixing ingredients at least two of which are capable of forming a eutectic, and crystallizing from a melt to which heat is added in an amount of over 1,000 times the latent heat of the solid formed. Each ingredient may be a metal or metal compound.  The cation may be aluminium, barium, cadmium, calcium, caesium, chromium, cobalt, copper, iron, lithium, magnesium, manganese, molybdenum, nickel, potassium, rubidium, silver, sodium, strontium, titanium, zinc, or zirconium.  The anion of the compound may be hydroxyl, (oxide), carbonate, sulphate, nitrate, sulphide, fluoride, chloride, bromide, iodide, cyanide, thiocyanate, chlorate, iodate, phosphate, or tungstate.  A scavenger may also be present, e.g. manganese, cobalt, or lead fluoride.ALSO:An infra-red transmitting non-cleaving multi-component multi-phase crystalline body, in which the largest ratio of solid-phase refractive indices is 1-1.5, is produced by mixing ingredients at least two of which are capable of forming a eutectic, and crystallizing from a melt to which heat is added in an amount of over 1,000 times the latent heat of the solid formed. In the examples, a crucible is slowly withdrawn downwards from a furnace (Stockbarger method).  The Czochralski and Verneuil methods are also referred to.
Patent GB-480491-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J17/04
Filed: 1937-03-17
Abstract: 480,491. Discharge apparatus. JACOBSEN, E. March 17, 1937, No. 7812. [Class 39 (i)] An electric discharge tube provided with two electrodes has a control member adapted to move into .the space between the electrodes whereupon the discharge is extinguished, the .control member being actuated by a moving coil instrument fitted within the tube. The discharge may pass between cold electrodes b, c, being extinguished by an insulating disc g, movable therebetween and carried by the pointer f of the moving coil instrument d. Alternatively, a hot cathode tube may be used.
Patent GB-1130485-A (GB)
Title: Process for the defined increase of the molecular weight of unsaturated polymerised hydrocarbons
IPC: C08F8/00
Filed: 1966-02-23
Abstract: 1,130,485. After-treating unsaturated polymerized hydrocarbons. CHEMISCHE WERKE HULS A.G. 23 Feb., 1966 [24 Feb., 1965], No. 7830/66. Heading C3P. Unsaturated polymerized hydrocarbons of molecular weight 1000 to 1,000,000 which have been isolated from the polymerization solution are dissolved in solvents and then treated in solution with a catalyst system consisting of (a) a compound having the general formula R n MeX y-n  where Me is boron, aluminium, gallium, beryllium, magnesium, calcium, zinc, silicon, tin, arsenic, antimony, titanium, zirconium, phosphorus, molybdenum, tungsten, bismuth, iron, mercury, cadmium, vanadium, uranium or vanadyl, X is fluorine, chlorine, bromine or iodine, R is hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy or sulphoxy or a carboxylate anion, y is the valency of Me and n is zero up to the valency of Me, and (b) a compound containing active hydrogen, catalyst component (a) being added in concentrations of 0À01 to 10% on the polymer used and catalyst component (b) being added in amount of 0À002 to 2 moles per mole of component (a). Component (b) may be water, an alcohol, an inorganic or organic acid, a phenol, thiophenol, enolizable carbonyl compound or imide. The polymerized hydrocarbon may be polybutadiene, polyisoprene, copolymers of butadiene or isoprene with monoolefins, e.g. styrene, butyl rubber, ethylene-propylene copolymers and ethylenepropylene-dicyclopentadiene terpolymers.
Patent GB-125130-A (GB)
Title: Improvements in or connected with Floats and Boats.
Inventor: SHORT HUGH OSWALD
IPC: B63B17/00
Filed: 1916-06-03
Abstract: 125,130. Short, H. O. June 3, 1916. Doors, lids, and covers.-A removable cover for the inspection openings of floats for hydroaeroplanes, and the water-tight compartments of boats and canoes, comprise a lid 5 seating on a flexible ring 3 of rubber &c. held down hv an elastic member 7 detachably anchored by hooks 10 to the lid 5 and to the interior of the float &c. The inner edge of the seating ring may be strengthened by cording or wiring; the ring is supported by a ring 12 of multiply wood, sunk at 13 to leave the edge of the ring free. The lid is formed concave with its edge turned down, as shown, or is made to conform to the stream-line or other configuration of the float, and a handle 11 is fitted outside. When the lid is pulled up, the hook 10 may be engaged with an eye fixed within the float so that the lid may be removed entirely.
Patent GB-1135049-A (GB)
Title: Tertiary amine compounds
IPC: C10L1/22
Filed: 1966-02-23
Abstract: 1,135,049. N-secondary-alkyl tertiary amines. ARMOUR & CO. 23 Feb., 1966 [23 Feb., 1965], No. 7958/66. Heading C2C. [Also in Divisions C3 and C5] The invention comprises N-secondary-alkyl tertiary amine compounds of the formula wherein R is a -CH 3  group, a -(CH 2 CH 2 O) m H group or a -(CH(CH 3 )CH 2 O) m H group where m is an integer and the sum of the values of m for the molecule is from 2 to 80; R<SP>1</SP> is the same as R or a group -(CH 2 ) 3 NRR, and R<SP>11</SP> is hydrogen or a group -NRR<SP>1</SP>, except that R and R<SP>1</SP> cannot both be methyl groups unless R<SP>11</SP> is a group -NRR<SP>1</SP>, and x and y are positive integers having a sum from 2 to 47. In the examples, the above compounds are obtained by reacting the appropriate starting material in a conventional manner (a) with formic acidformaldehyde resulting in the methylation of the amino groups, or (b) with ethylene or propylene oxides.