baber/WOPTO huggingface dataset:
Patent GB-1498195-A (GB)
Title: Reciprocating piston and cylinder mechanisms with balancers for vibration damping
IPC: F02B75/20
Filed: 1974-11-15
Abstract: 1498195 Balancing MITSUBISHI JIDOSHA KOGYO KK 15 Nov 1974 [27 Nov 1973 5 April 1974] 49636/74 Heading F1M Apparatus wherein at least one piston 7 reciprocates along a longitudinal axis of at least one cylinder 8, the or each piston being connected to a rotatable crank-shaft 1 by means of a connecting rod 2 comprises (a) at least one pair of balancer elements 9,9' rotatably supported on the apparatus, an upper balancer element 9' of each pair being disposed laterally of an upper portion of the apparatus and a lower balancer element 9 of each pair being disposed laterally of a lower portion of the apparatus such that the balancer elements are located on opposite sides of the cylinder and the axes of rotation of the balancer elements are parallel to the axis of rotation of the crank-shaft and are located in a first plane which is disposed obliquely to a second plane containing the longitudinal axis of the cylinder and the axis of rotation of the crank-shaft wherein the difference between the distance of the upper and lower balancer elements from the second plan is in the range of -0À5l#X 2 -X 1 #+0À5l where: l is the length of the connecting rod; X 2  is the distance between the lower balancer element and the second plane; and X 1  is the distance between the upper balancer element and the second plane, and wherein the distance y between the axes of rotation of the balancer elements measured in a direction parallel to the second plane is in the range of from 15% to 135% of the length l of the connecting rod and (b) means (not shown) driven by the apparatus to rotate the upper and lower balancer elements in opposite directions at twice the angular velocity of the crank-shaft 1 such that the lower balancer element is rotated in a direction opposite to that of the crank-shaft. The invention is described as applied to a four cylinder in-line internal combustion engine but it can be applied to a reciprocating pump or compressor. Normally the centre of gravity of a balance weight is positioned as close as possible to a central plane perpendicular to the axis of the crank-shaft and located at the longitudinal centre of the engine. In a modification however balancer weights may be spaced apart in the longitudinal direction of a balancer shaft. For example, in place of one balance weight there may be provided two spaced balance weights each having half the mass of this one balance weight and arranged equidistantly from the central plane. Alternatively one of the balance weights may be divided into portions having unequal masses the spacing thereof from the central plane being inversely proportional to the masses of the portions. The engine may have two or more pairs of balancers.
Patent GB-1191848-A (GB)
Title: Improvements in Beverage Dispensing Machines
Inventor: GREAVES JOHN ALFRED
IPC: G07F13/06
Filed: 1966-11-05
Abstract: 1,191,848. Beverage dispensing machine. FISHOLOW PRODUCTS Ltd. 1 Feb., 1968 [5 Nov., 1966], No. 49682/66. Heading A4D. [Also in Division F4] A water heater, in or for a beverage dispensing machine, eg of the type disclosed in Specification 1,024,161, comprises a vessel 14 containing an electric heating element 16, controlled by a thermostat 17, the heating element, when in use, being immersed in the water to be heated, an inlet pipe (not shown) and an outlet pipe 31 extending from an electrically operated rotary pump 25. The impeller unit of the pump may be mounted within the vessel or the pump may have an inlet pipe which projects into the vessel, the impeller unit being mounted externally of the vessel. The outlet pipe may extend upwardly from the pump and include a downwardly inclined portion from which the water discharges into a mixing chamber (not shown), in which hot water is mixed with dry beverage ingredients, so that when the pump ceases to operate, the water in the outlet pipe between the pump and the downwardly inclined portion will flow back to the vessel via the pump. There may be a second pump to deliver hot water to a second mixing chamber. Floats 35 and 36 have operating arms 37 and 38 respectively which control the microswitches 39 and 40 which control the supply of water to the vessel. A second thermostat may be present to act as an "over-temperature" switch.
Patent GB-1210354-A (GB)
Title: Improvements in or relating to extruded plastic net
Inventor: MERCER FRANK BRIAN
IPC: B29C48/09
Filed: 1966-11-07
Abstract: 1,210,354. Extruding nets. NETLON (P.T.A.) Ltd. 25 Oct., 1967 [7 Nov., 1966], No. 49820/66. Heading B5A. [Also in Division D1] An extruded stretched thermoplastic net comprises two sets of strands 2, 3 and integral extruded intersections 1 wherein each strand comprises at least two distinct and demarcated portions, viz. a base portion 4 adjacent the medium plane M of the net and one or more outlying portions 5 extending from the base portion away from the plane M. The outlying portions 5 and the base portions between the intersections are molecularly orientated, the intersections being unorientated. Preferably the base portion 4 of the strand is wider than the outlying portion 5, as shown. The net can be extruded from a die of the type which has orifices in passing register and various die orifice shapes are described, Figs. 4-8 (not shown).
Patent GB-1447994-A (GB)
Title: Electromagnetic circuit breakers
IPC: H01H71/02
Filed: 1973-10-30
Abstract: 1447994 Electric circuit breaker cases AIRPAX ELECTRONICS Inc 30 Oct 1973 50337/73 Heading H1N An electromagnetic circuit-breaker has a case comprising a thermoplastics base 14, a thermoplastics housing 16 and a rocker actuator 18 pivotally mounted in the housing with its inner end bificated and receiving a toggle bar 44 of the circuit-breaker mechanism and having a L-shaped groove 48 receiving housing projections 50. The circuit breaker casing including housing 16, base 14 of plastics material, is telescoped together and retained by engagement of protuberances 24 in apertures 32. Actuator 18 has a slot 48, 54 through which, in assembly, pivot protruberances 50 are introduced. Legs 38 are bifurcated to engage by slot 42 the toggle bar of the switch mechanism. The circuit breaker may have a single pole with terminals 20, 22 or a plurality of poles (Fig. 6, not shown ). A knock-out may be provided in base 14 for an auxiliary switch having a base 92, and terminals 94, 96. A light (58, Figs. 2, 3, not shown) may be mounted between the legs of actuator 18.
Patent GB-1484614-A (GB)
Title: Noise suppression for gas turbine engines
IPC: F04D29/66
Filed: 1974-11-21
Abstract: 1484614 Gas turbine ducted fan engines; noise suppression UNITED AIRCRAFT CORP 21 Nov 1974 [26 Dec 1973] 50543/74 Headings F1C F1G and F1J The invention relates to a gas turbine engine having a row of stationary inlet guide vanes and downstream thereof a supersonic rotor such as a fan rotor in the case of a gas turbine ducted fan engine. The inlet guide vanes are indicated at 16 and comprise a forward face 18 which is directed oppositely to the direction of rotation 29 of the fan rotor, the fan rotor blades being indicated at 22. The flow of air into the fan blades 22 is supersonic at design speed. The forward face 18 of each IGV 16 comprises a reflecting surface 26 and a tangential line to each point on the reflecting surface is such that it forms a downstream angle equal to or greater than 90 degrees with a line DB parallel to the direction of noise propagation at each respective point on the reflecting surface. The relative flow of air into the fan blades 22 is supersonic, the blades generate shock waves 24 which travel at a speed and direction represented by vector DA which may be regarded as being normal to the shock waves 24. Air entering the IGV's as indicated by arrow 28 is discharged therefrom in a direction and at a velocity represented by vector AB, the direction being substantially parallel to the reflecting surface 26. The sum of the vectors DA and AB is vector DB and the direction of this vector is referred to as the "direction of noise propagation". A line FE is drawn through the trailing edge 27 of an adjacent IGV, the point E being the upstream limit of the reflecting surface 26. Thus any noise propagated in the direction DB is reflected back towards the fan and does not pass forwardly out of the engine.
Patent GB-1154269-A (GB)
Title: Arc-Welding Electrodes
Inventor: WITHERELL CHARLES EICHHORN
IPC: B23K35/30
Filed: 1967-11-08
Abstract: 1,154,269. Welding by fusion. INTERNATIONAL NICKEL Ltd. 8 Nov., 1967 [21 Nov., 1966], No. 50787/67. Heading B3R. [Also in Division C7] Austenitic spheroidal graphite cast iron is arc welded by producing a gas-shielded weld-metal pool comprising, by weight Ni 18-40% Mn 0-2À5% Cu 0-5% Cr 0-5À5% Si 0-1% Ca 0-0À1% Fe (and impurities)-balance and introducing into the pool C 0À5-3À5% and Mg up to 0À05% sufficient to cause the formation of spheroidal graphite in the solidified weldmetal. P and S impurities should not exceed 0À05% P and 0À035% S. Welding may be effected using a coated core wire or a tube containing powdered ingredients. In the former case, the coating may consist of CaCO 3  30-70% NaF.AlF 3  up to 30% CaF 2  up to 40% C 5-20% Ni-15% Mg 10-30% Bentonite 2-5% Rare earth oxides up to 30% Na 2 SiO 3  10-20% In the latter case, there is no need for an extrusion aid (bentonite) or binder (Na 2 SiO 3 ): further, the alkaline earth carbonate and fluoride may be omitted and the electrode used with usual shielding gases. The welds may be heat treated at 900-1010‹ C. followed by slow cooling to 690‹ C. and then air-cooling. Applications are in (a) joining and repair-welding castings of austenitic spheroidal graphite cast iron containing Ni 18-36%: such castings may be joined to other metals, e.g. carbon steels, lowalloy steels, austenitio stainless steel and Nibase alloys; and (b) producing overlays upon other metals, e.g. carbon steels and an alloy containing Fe 7%, Cr 16%, Ni balance.
Patent GB-1211359-A (GB)
Title: Improvements in/or relating to web winding cores
Inventor: GALLEY HOLLIS TOWNSEND
IPC: C09J7/22
Filed: 1967-11-09
Abstract: 1,211,359. Photographic film winding. EASTMAN KODAK CO. Nov. 9, 1967 [Nov.14, 1966], No.51002/67. Heading G2A. [Also in Divisions B2 and B8] A photographic spool has a web winding core having attached thereto an adhesive element for releasably attaching one end of a web of photographic material to the core, the adhesive element comprising a tape coated on one side of the first, complete layer of pressure-sensitive adhesive and on the other side of the second, partial layer of a pressure-sensitive adhesive the adhesive element being attached to the winding copper means of the first, complete adhesive layer. In the Figure a polyester film base 10 is attached to the reel 18 by means of a layer 11 of an acrylic pressuresensitive adhesive half the length of its other surface being coated with layer 12 of the same pressure-sensitive adhesive so that the coating is spaced from one end of the tape. The adhesive layer 12 is protected by a release sheet 13. The release sheet 14 is provided with pull tab 16 extending beyond the end of the film base which enables the layer 12 to be exposed.
Patent GB-1444179-A (GB)
Title: Method of plattng aluminium for brazing or soldering
IPC: B23K35/00
Filed: 1973-11-02
Abstract: 1444179 Plating aluminium-containing surfaces with metals BORG WARNER CORP 2 Nov 1973 [7 Nov 1972] 51043/73 Headings C7B and C7F [Also in Division B3] An Al or Al alloy surface is plated electrolytically or electrolessly with Ni-X, Co-X or Ni-Co- X, where X is Pb or Bi, from an aqueous bath containing a Ni and/or Co salt, a buffering salt and 0À005-1À0 wt. per cent of a Pb or Bi salt, the bath pH being maintained at 7-12 e.g. by addition of an alkali metal or ammonium hydroxide. The plating is stated to comprise finely-divided spongelike particles usually of diameter # 100Á inches. Electrolytic baths may contain the sulphates and chlorides of Ni and/or Co; Na citrate or gluconate as buffer; and Pb acetate or citrate or Bi lactate. Electroless baths are similar but contain no chloride. The use of a hypophosphite bath is mentioned for Ni plating. The bath may be at 80-200‹F. The plating is useful as a bond-forming agent in brazing and soldering, and the Al surface plated may comprise a brazing alloy, e.g. Al-Si.
Patent GB-1285204-A (GB)
Title: A process for the preparation of isoamylase
IPC: C12N9/44
Filed: 1969-10-17
Abstract: 1285204 Isoamylase HAYASHIBARA CO 17 Oct 1969 [19 Oct 1968] 51139/69 Heading C3H A process for the production of isoamylase comprises cultivating at least one strain of a species within the order Actinomycetales in a cultivation liquid. The species may be Streptomyces diastatochromogenes, Actinomyces globisporus, Nocardia asteroides, Micromonospora melanosporea, Thermomonospora viridis, Actinoplanes philippinensis or Streptosporangium roseum.
Patent GB-1410047-A (GB)
Title: Drive mechanism for oepning and closing doors
IPC: E05F15/12
Filed: 1972-11-09
Abstract: 1410047 Door operating mechanism MAGNETIC ELEKTROMOTOREN AG 9 Nov 1792 [29 Nov 1971 22 Sept 1972] 51885/72 Heading E2M A mechanism for operating a door 8 comprises an electric motor (10) of a kind which may be halted without damage, even when power is being applied thereto. Fig 4 (not shown) adapted to be connected to the door by means of a variable ratio transmission, and resiliently flexible stop means for limiting the movement of the transmission in two terminal positions. The transmission comprises a shaft 3, driven by the motor through step-down gearing, to which is keyed an arm 4 pivotally connected to an arm 5 having a pivotal joint 7 for connection to the door 8, the rate of movement of the door thus being dependent on the angle between the arms 4 and 6 and being a maximum when this angle is 90 and a minimum at the terminal positions. At these positions the angle is just over 0 or just under 180, so that the transmission does not attain a dead centre position and so the door can be operated manually. The travel is stopped at each end by contact of a stop bolt 25 with a surface (24) which may be on a member 20 which may be resiliently mounted on the shaft 3 through a rubber layer 22, Fig 5, or may be rigid with the shaft 3, there being a rubber layer 22 between the shaft 3 and the final gear 19 of the stepdown gearing, Figs 7, 8 (not shown), or surfaces 24 may be on a member 24a, Fig 15, rigid with the arm 4 and having a square opening 4e in which is located a square end 33 of the shaft 3, packed by rubber elements 32. Or the stop bolts 25 may be contacted by an end (27b) of a spiral spring (27), Figs 9, 10 (not shown), the other end of which is fixed to the gear 19, or by a spring-loaded pin (30), Figs 11, 12 (not shown) carried in a transverse bore (28b) of an arm (28) keyed to the shaft 3. Or the arm 4 may have two cutout sections (34), Fig 13 (not shown) which may contact a rubber cylinder (34). The operating mechanism may be applied to a horizontally pivoted door (108), Figs 16-19 (not shown) and may be arranged so that in the closed position arms (104), (106) are collinear, so that the door can only be opened by operating the motor, being held closed when the motor is switched off.
Patent GB-1508160-A (GB)
Title: Adjustment device eg for use in a watch
IPC: G04B27/02
Filed: 1975-12-19
Abstract: A winding stem mechanism including a winding shaft having a detent portion comprised of a pair of annular peripheral recesses with an annular step portion therebetween, and a pair of annular stops each adjacent a respective one of the recesses, and mounted for rotation and for being axially slidable. A resilient spring-like member normally engages a first of the recesses to define a normal position of the shaft and when the shaft travels in a first axial direction the spring-like member climbs the annular step portion to engage the second of the recesses. When the shaft travels in a second axial direction it pushes the annular stop adjacent the first recess to flex the spring-like member to permit the shaft to travel to a second operating position and flex in a direction effective to bias the shaft back from the second operating position to the normal position when the shaft is released.
Patent GB-1415870-A (GB)
IPC: H01M8/00
Filed: 1972-11-10
Abstract: 1415870 Propylene oxide BATTELLE MEMORIAL INSTITUTE 10 Nov 1972 [11 Nov 1971] 52138/72 Heading C2C [Also in Division B1] Propene is controllably oxidized to propylene oxide by contacting propene containing 26À5 vol. per cent oxygen at 314 C. with a layered body comprising a nickel support 1 mm. thick, a gold layer 1 Á thick, an alumina layer 50- 1500  thick and an outer gold layer 100  thick whilst passing a current up to 1À5 A/cm.<SP>2</SP> through the body.
Patent GB-1509760-A (GB)
Title: Laser gyroscope
IPC: H01S3/083
Filed: 1975-12-19
Abstract: 1509760 Lasers MESSERSCHMITT BOLKOW-BLOHM GmbH 19 Dec 1975 [21 Dec 1974] 52210/75 Heading H1C In a laser gyroscope in which each of two adjacent ring lasers on a common rotational axis have their internally circulated emissions R1, R2, Fig. 1, restricted to a single direction W1, W2, and in which the two emissions are in spatially opposite directions, the direction of both circulated emissions is reversed periodically so that the frequency difference between the two emissions due to rotation is directed alternately to external photodetector parts D1 and D2. The two ring lasers are supported in thermal proximity by low expansion quartz layers, any change in temperature of the assembly being detected by thermal sensors T1, T2, T3 and used to adjust piezo-electrically controlled ring resonator mirrors P1, P2 to regulate the emission frequencies. Apart from the positionally controlled mirrors P1, P2, each ring resonator comprises a concave mirror K1, K2 and a partially transmitting output mirror A1, A2. Stimulated emission in each ring is produced by a CO2 or solid state active medium V1, V2, and unidirectional emission circulation and periodic reversal is controlled by a non-reciprocal absorber M1, M2 each comprising two #/4 plates and a coil-controlled Faraday rotator. Externally of the laser assembly the outputs from the two lasers are combined by mirrors U1, U2 and beam splitters S1, S2. In the case of solid state laser active media the laser assembly may be formed as an integrated optical structure. A single ring laser is shown in Fig. 4 in which CO2 is excited by a gas discharge between anodes An2, An<1>2 and a cathode K2.
Patent GB-1473810-A (GB)
Title: Mother blank for producing starting sheets for use in electrolytic non-ferrous metal production
IPC: C25C7/02
Filed: 1975-12-24
Abstract: 1473810 Laminates ONAHAMA SEIREN KK and R IIJIMA 24 Dec 1975 [28 Dec 1974] 52816/75 Heading B5N [Also in Division C7] A mother blank cathode for preparing starter sheets used in non-ferrous electrowinning or refining comprises a plurality of laminar electrically conductive polybutene resin layers between which is a metal planar member, and surrounding the whole an integral frame of non-conductive polybutene. The resin may be a homopolymer, or a copolymer or polymer blend with up to 20% of 2-4 C alpha-olefin, containing 20-80% of carbon or metal powder of particle size less than 100 mÁ for conductivity. A polymer of melt-index 1À0-3À5 and softening temperature 100- 140 C. is specified. One or several nets or perforated sheets of Cu or Al may be embodied therein, optionally with a fibre-reinforced plastics reinforcement layer between them. The cathode may be moulded or laminated, the final stage being such as to melt-bond the frame to the layers.
Patent GB-1057518-A (GB)
Title: Improvements in or relating to transmission mechanism for transmitting rotary motion
IPC: F16H25/24
Filed: 1965-12-13
Abstract: 1,057,518. Screw-and-nut gearing. A. M. MAKOTH. Dec. 13, 1965 [Oct. 18, 1965], No. 52876/65. Addition to 1,047,575. Heading F2Q. A screw-and-nut mechanism comprises a threaded shaft 10 surrounded by an inner sleeve 11 carrying projections 12 engaging the thread, and at least one outer sleeve 15 surrounding the inner sleeve and carrying projections 18 engaging a screw-thread on the outer surface of sleeve 11 and of greater pitch than the thread on shaft 10, the projections 12, 18 being in the form of radial rollers mounted in anti-friction bearings as described in the parent Specification. As shown, sleeve 11 is provided with threads 13, 14 of opposite hand, and three outer sleeves 15, 16, 17 are provided, the end sleeves 15, 17 carrying projections 18 engaging the threads 13 and the middle sleeve 16 carrying projections 19 engaging the opposite-handed threads 14, so that the axial movement of sleeve 11 resulting from rotation of shaft 10 causes rotation of sleeve 16 in a direction opposite to that of sleeves 15, 17. As applied to an actuator, Figs. 2 and 3 (not shown), shaft 10 and sleeve 11 are enclosed in cylindrical housings (23, 24) and end flanges (25, 26) are provided on the outer sleeves.
Patent GB-1196677-A (GB)
Title: Novel Ketoxime Carbamates and their use in Insecticidal Compositions
IPC: A01N47/24
Filed: 1967-11-21
Abstract: 1,196,677. Insecticides containing ketoxime carbamates. UPJOHN CO. 21 Nov., 1967 [22 Dec., 1966], No. 52968/67. Heading ASE. [Also in Division C2] Insecticidal compositions comprise as active ingredient a compound of (formula wherein R is H or C 1-6  alkyl and R 1  is C 1-3  alkyl (see Division C2). The compositions may be dusts, wettable powders, emulsifiable concentrates, aqueous dispersions, solutions and flowable creams cantaining usual ingredients including other insecticides. The compositions may be used against boll weevil, confused flour beetle, house crickets, German cockroach, house flies, Mexican bean beetle, melon aphid, yellow mealworm and flesh flies. Synergists such as piperonyl butoxide, sesamex (Sesoxane), propyl isome (isosafrole condensation product with n-propyl maleate), n-octyl sulfoxide of isosafrole, sesame oil extracts and octachlorodipropyl ether, may be used.
Patent GB-1115426-A (GB)
Title: Improved fluid flow control valve
Inventor: SMITH RUSSELL GORDON
IPC: F16K5/02
Filed: 1966-11-29
Abstract: 1,115,426. Valves. CONTINENTAL MANUFACTURING CO. 29 Nov., 1966, No. 53453/66. Heading F2V. A valve body lining S of P.T.F.E. is located around the rectangular flow passages 10, 12 by lips 14 and ribs 30, and forms a high pressure plug seal in its regions above ribs 30, the peripheral edges T of the lining being rounded to preclude damaging contact with the plug V as it is rotated. The Specification discloses a method of forming the lining in the body by using a sizing die shaped like the plug V.
Patent GB-1402736-A (GB)
Title: Hermetically sealed compressor with unloading mechanism
IPC: F04B49/00
Filed: 1972-11-20
Abstract: 1402736 Controlling compressors WESTINGHOUSE ELECTRIC CORP 20 Nov 1972 [20 Dec 1971] 53485/72 Heading F1N A multi-cylinder reciprocating compressor 2 mounted in a sealed casing 4, 5, 6 has a proportion of the cylinders e.g. 13 provided with an unloading valve 30, the operation of the or each unloading valve 30 being controlled by a solenoid valve 64 situated outside the casing. Each of the cylinders delivers to an individual discharge conduit, the discharge conduits e.g. 40 of the unloadable cylinders being connected to a muffler chamber 46 and the discharge conduits e.g. 50 of the permanently loaded cylinders being connected to a muffler chamber 44. Conduits 58, 48 conduct the delivery from the muffler chambers to a main discharge line 60, the conduits joining the line 60 outside the casing 4, 5, 6. To cause loading of all the cylinders the solenoid valve 64 is operated to direct the delivery pressure in the line 60 through lines 70, 69 to the chamber 25 of the or each unloading valve. This moves a respective piston 35 against the action of a spring 36, thereby preventing gas admitted to the cylinder(s) 13 from escaping through a by-pass port 38. During unloaded operation, a check valve 62 prevents the delivery from the loaded cylinders being lost by back flowing through the conduit 48 and the unloaded cylinders.