baber/WOPTO huggingface dataset:
Patent GB-1207513-A (GB)
Title: Catalyst and method for isomerizing polymethylbenzenes
Inventor: AMIR EMANUEL MIRZA
IPC: C07C5/27
Filed: 1967-12-15
Abstract: 1,207,513. Isomerization catalyst. ESSO RESEARCH & ENG. CO. 15 Dec., 1967 [27 Dec., 1966 (2)], No. 57150/67. Heading B1E. [Also in Division C5] Isomerisation catalysts are made by impregnating SiO 2 -Al 2 O 3  containing a major proportion by weight of SiO 2  with an aqueous solution of a soluble Mo compound to provide the product with MoO 3 , and subjecting the formed and impregnated catalyst to heat treatment for at least one hour during which heat treatment the catalyst is dried and where throughout substantially the whole of the heat treatment the catalyst is maintained at a temperature not greater than 450F. The soluble Mo compound is usually (NH 4 ) 6 Mo 7 O 24 . The catalyst may take the form of pellets or pills made by extrusion or pressing.
Patent GB-1161090-A (GB)
Title: Improvements in Valves for Fluids.
Inventor: MATSUI TERUHIKO
IPC: F16K3/18
Filed: 1966-12-21
Abstract: 1,161,090. Valves. MAENAKA VALVE WORKS CO. Ltd. 21 Dec., 1966, No. 57155/66. Heading F2V. A gate valve comprises a closure member formed from two similar plates 17, 18 with springs 20 disposed in symmetrical positions between the plates to press them on to seats 15, 16 respectively, a supporting ring 19 with spigot screws 22 received in grooves in the plates 17, 18, projections 23 on the ring 19 received in guide grooves in the valve casing, and a nut 25 co-operating with a screw spindle 26 for moving the closure member, the spindle 26 being receivable in the space between the plates 17, 18. Four, six, or eight springs 20 can be used.
Patent GB-1430859-A (GB)
Title: Pressure imbalance detecting device
IPC: H01H35/38
Filed: 1973-12-11
Abstract: 1430859 Indicating leaks in dual brake circuits SOC ANON D BA 11 Dec 1973 [27 Dec 1972 14 March 1973] 57377/73 Headings F2E and F2F [Also in Division H1] A pressure imbalance detecting switch comprises a fixed contact 92, Fig. 1, co-operating with a movable contact-bearing element 70 in a bore 26, element 70 being moved in an appropriate direction by annular pistons 42, 44 in the event of pressure imbalance in chambers 46, 48, movement of pistons 42, 44 being resisted in both directions by a resilient system 36, 38, 36 that bears on shoulders 40, 40 on rods 30, 32, fixed relative to housing 22 and passing through the annular pistons, the resilient system not interfering with the movable element 70. Movable element 70 comprises a conducting sleeve with a non-conducting annulus 82 that in the balanced condition engages fixed contact 92. Imbalance of pressure moves both pistons and the element 70 against the resistance of spring 38. The fixed contact eventually engages the conducting part of element 70 to complete a warning circuit (e.g., in a vehicle, to earth via the switch housing). Should the pressure be released so that pressures are again balanced, the resilient system only returns the highpressure piston, friction with the wall of the bore retaining the other piston and member 70 so that the warning circuit is not broken. Rods 30, 32 are retained in position by pressure of plugs 28, 28 and are centred by the annular pistons 42, 44. Sealing is achieved by 0-rings 72, 74, 76. Shoulders 40 are provided where the rods change in diameter, the narrow extensions 34 guiding sleeves 36 of the resilient system. The switch is described in conjunction with a dual circuit braking system in which separate circuits 12, 14 supply hydraulic pressure to front and rear wheels 16, 18 of a vehicle, the latter circuit having a pressure reduction valve 20 to ensure that more braking force is applied to the front wheels. Housing 24 has a by-pass orifice 58 connected such that a failure in the front wheel pressure line 12 will result in a piston 44 moving to the left so that sealed spacer 78 exposes orifice 58 to chamber 48 and permits unreduced pressure to by-pass valve 20 and apply the whole force to the brakes of the rear wheel. A simpler pressure imbalance detecting switch, Fig. 2, employs rods 114 that are fixed to bore plugs 113 and do not have rod extensions to guide the sleeves 116, 118 of the resilient system. In this case the movable element 128 consists of two conducting annuli 128B separated by an insulating annulus 128A. Housing 110 has a mounting hole 138.
Patent GB-1422113-A (GB)
Title: Frequency to analogue converter
IPC: G06J1/00
Filed: 1971-12-11
Abstract: 1422113 Frequency to voltage converters UNITED GAS INDUSTRIES Ltd 13 Feb 1973 [11 Dec 1971] 57654/71 Heading H3A A frequency to an electric analogue, such as voltage or current, converter comprises an arrangement, e.g. a stable high frequency oscillator 10, a gate 19, an input pulse sequence generator 21 and a counter 1, for measuring the time period or the pulse interval of input pulses, a multi-stage binary store 2 for storing the measured time, an output circuit including binary coded weighted impedance elements 13- 18 connectible via respective switches 5 in dependence upon the presence of a binary " one " in the corresponding stage of store 2 for producing an electrical output signal, i.e. the analogue, at 8, 9 representing a reciprocal of the measured time. In operation, in the absence of an inhibit pulse b along line 23, clock pulses from source 10 are passed via gate 19 and counted at 1 till the end of the pulse period when in response to the next incoming pulse a, the count in 1 is arrested by the inhibit pulse b. Then a pulse c produced on line 22 enables the contents of the counter to be transferred to the store 2. At the end of the transfer, a reset pulse D produced on line 20 clears the counter stages and the inhibit pulse is terminated. so that counting can recommence. The counter 1 may be binary coded decimal counter. The pulse period may be measured more accurately by sampling every other input cycle. The output circuit may include a current source 12 across which elements 13-18 are connected in parallel as shown or alternatively a constant voltage source and series connected elements may be used (Fig. 4, not shown).
Patent GB-1190830-A (GB)
Title: Material Having the Properties of Leather and Its Manufacture
Inventor: ADJIMAN ELIE
IPC: B32B27/00
Filed: 1967-12-19
Abstract: 1,190,830. Coatings. E. ADJIMAN. 19 Dec., 1967 [22 Dec., 1966], No. 57673/67. Heading B2E. A material having the properties of leather comprises a support having a micro-cellular synthetic adhesive coating and a surface comprising particles of leather each having a pointed portion_fixed in the adhesive coating. The support may be a woven or non-woven material and may be coated with a polyacrylic resin. The synthetic adhesive may be of a polyurethane or a polyvinyl resin or of a natural latex. Fibres of natural or synthetic, for example nylon. materials may be interspersed between the particles of leather. The material may be finished by rubbing down with emery cloth and/or pumice or polished and dyed. A coating of micro-cellular polyvinyl chloride or polyurethane may be applied over the finished article. The fibres may be applied by electrostatic flocking.
Patent GB-1419529-A (GB)
Title: 5-nitro-2-2-dialkylamino-vinyl-imidazoles and their 'manufacture and use
IPC: C07D233/95
Filed: 1972-12-18
Abstract: 1419529 5 - Nitro - 2 - (2 - dialkylaminovinyl)- imidazoles SCHERING AG 18 Dec 1972 [21 Dec 1971] 58299/72 Heading C2C Novel compounds I in which R is hydrogen or C 1-2  alkyl, " Alkyl " is C 1-4  alkyl and X is a C 1-6  hydrocarbon group or -(CH 2 ) n Y (in which n is 2 to 4 and Y is hydroxyl, halogen C 1-5  acyloxy, benzoyloxy, 2-tetrahydropyranyloxy sulphonyloxy, di-(C 1-4  alkyl)amino or a N-containing heterocyclic group of 5 to 7 ring members which may contain a further hetero atom in the ring and is optionally substituted by C 1-4  alkyl) and acid addition salts of compounds in which Y is an amino group or heterocyclic ring are prepared by reaction of a compound III in which X<SP>1</SP> is a C 1-6  hydrocarbon group or -(CH 2 ) n Y<SP>1</SP> (in which Y<SP>1</SP> is hydroxyl, benzoyloxy, 2-tetrahydropyranyloxy, di-(C 1-4  alkyl)- amino or a N-containing heterocyclic group as defined above) is reacted with an aminal ester or amide acetal derivative of orthoformic acid and if desired when Y<SP>1</SP> is hydroxy converting this group into C 1-5  acyloxy or sulphonyloxy or replacing it by halogen. Compounds I prepared are those in which " Alkyl " is methyl or ethyl and X is methyl, ethyl, butyl or ethyl substituted by hydroxy, benzoyloxy, acetoxy tetrahydropyranyloxy, tosyloxy, morpholino, or dimethylamino. The reaction is carried out in a polar aprotic solvent at raised temperature using bis-(dimethylamino)-t-butoxy methane, dimethyl-formamide dimethyl acetal or diethyl formamide diethylacetal. Compounds I are oxodized, preferably by ozone or by alkali metal periodate with osmium tetroxide to compounds II Compounds II (R = Me and X = Et or acetoxyethyl) are characterized as their oximes. Compounds II are intermediates in the synthesis of anti-microbial derivatives; thus (a) 5-nitro-1- methyl - 2 - (2 - dimethylaminovinyl) imidazole is reacted with NaIO 3 /OsO 4  and 3-amino-5-morpholinomethyl-2-oxazolidinone added to form 3- (5 - nitro - 1 - methyl - 2 - imidazolyl) - methyleneamino - 5 - morpholino - methyl - 2 - oxazolidinone and (b) 5-nitro-1-morpholinoethyl) - 2 - (2 - dimethylamino vinyl)imidazole is cleaved by ozone and the thiosemicarbazone of the resulting 2- carboxaldehyde is prepared. Compounds I exhibit trichomonacidal properties and form with a carrier a pharmaceutical composition.
Patent GB-1208370-A (GB)
Title: Piston ring expander
Inventor: AGOSTINONE MARIO
IPC: B25B27/12
Filed: 1968-12-09
Abstract: 1,208,370. Piston-ring expander. M.AGOSTINONE. 9 Dec., 1968 [29 Dec., 1967], No. 58411/68. Heading B4W. A device for expanding a piston-ring comprises a first ring 1 completely closed and provided with a handle 2, an interchangeable second ring 3 mounted on the first and having an inner guide surface 6 and a holding projection 7, and a displaceable third ring 9 mounted on the first and capable of executing limited circumferential movement thereon, the third ring 9 having an adjustable slide 13 with an end projection 14 for co-operation with the holding projection 7 to expand a ring 18 when located in the device. Closure of a handle 11 linked to the third ring 9 towards the handle 2 (as shown) causes displacement of the third ring on the first ring whereby relative separation of the projections 7, 14 occurs to expand the pistonring 18. The interchangeable second ring 3 has a notch 5 engaged by a projection 4 on the first ring 1 whereby it is fixed relative to the first ring.
Patent GB-1422347-A (GB)
IPC: G06F3/033
Filed: 1972-12-19
Abstract: 1422347 Data reader B A SOLOWAY 27 Nov 1973 [19 Dec 1972] 58513/72 Heading G4M Documents entered into a reader are detected by interrupting light on line c and when the documents are between drive and pinch rolls e, h they are detected at reference line i to operate a stepping motor. Above the entry slot is a row of light emitting diodes K which are illuminated by signals from a data processor, to which data from the documents is fed, to show which fields on the documents are to be read. The diodes are extinguished as the data is read. Above the diodes is a display showing the data read from the documents. Rollers h are spring loaded to compensate for varying card thicknesses and the sloping front r of the reader has a frictional surface retaining the lower document if two documents are accidentally supplied.
Patent GB-1245849-A (GB)
Title: Method of improving colour of cooked egg products
IPC: A23L15/10
Filed: 1969-12-08
Abstract: 1,245,849. Egg product. RALSTON PURINA CO. 8 Dec., 1969 [19 Dec., 1968], No. 59839/69. Heading A2B.  Raw egg yolk is coagulated to form an egg yolk body which is subsequently surrounded with coagulated egg white, the yolk having being contacted either before or after it is coagulated with an edible oxidising agent, for example hydrogen peroxide or a source of hydrogen peroxide. Prior to coagulation, the yolk may be contacted with a proleolytic enzyme, for example papain, bromelin, pepsin, or trypsin.
Patent GB-1359124-A (GB)
Title: Relay armature location
IPC: H01H50/24
Filed: 1972-12-29
Abstract: 1359124 Relay armature pivot REYROLLE PARSONS Ltd 29 Dec 1972 60063/72 Addition to 1205924 Heading H1N An electromagnetic relay of the type described in Specification 1,205,924 has its armature 17, 22 located by a head 26 at one end of a supporting post 25, which passes through an aperture 31, 32 in the armature and has its other end secured to the yoke 10, the post 25 being directed away from the yoke 10 towards the magnetic core 14, with its head 26 close to the knife edge 20, 21 so that part 22 of the armature engages behind the head 26 to retain the armature against the knife edge. The yoke end is bifurcated to form legs 11, 12 with aligned knife edges 20, 21 thereon and the post 25 is secured to a support plate 28 attached at 29 to legs 11, 12. Two aligned posts 25 may be provided.
Patent GB-1373304-A (GB)
Title: Process for production of acrolein
IPC: C07C47/22
Filed: 1971-12-29
Abstract: 1373304 Oxidation catalysts MITSUBISHI PETROCHEMICAL CO Ltd 29 Dec 1971 [29 Dec 1970 (3)] 60433/71 Heading B1E [Also in Division C2] A calcined catalyst composition has the formula Mo a  Bi b  Co c  Ni d  Fe e  O f  B g  X h  Sn i  Si j  wherein X is Na or Mn and the subscripts a to designate respective numbers of atoms; and in the case where a=12, then b=0.01 to 10, c=0 to 10, d=0 to 10, c+d = 0.1 to 15, e=0.05 to 8, f=25 to 120, g=0.01 to 2, h=0 to 2, g+h=0.01 to 4, i=0 to 2 and j=0 to 40.
Patent GB-1292657-A (GB)
Title: Improvements in or relating to stands for disposable refuse containers
Inventor: HAMILTON JOHN JOSEPH
IPC: B65F1/16
Filed: 1969-12-17
Abstract: 1292657 Sack holders JOHN HENNING ENG Ltd 17 Dec 1970 [17 Dec 1969] 61609/69 Heading B8C A sack holder comprises a base member 10, a vertical column 22 removably mounted on the base member and supporting a head unit overlying the base member and carrying a ring adapted to locate a freely suspended sack, and a pivotal lid for closing the open end of the sack, a cranked foot pedal 12 having a first arm 13 extending upwards through a slot 14 in the base member, and a second arm 16 fulcrumed intermediate its length and associated with the bottom end of a link 23, the top end of which is connected to the lid, the second arm 16 of the pedal being separate from but adapted to abut or removably engage the bottom end 24 of the link. As shown, the arm 16 is provided with a pin 18 or notch 26 for abutment with a plate 24 on the bottom of the link 23.
Patent GB-1271875-A (GB)
Title: Multifunctional aziridino compounds
Inventor: UELZMANN HEINZ
IPC: C08G59/50
Filed: 1969-12-22
Abstract: 1,271,875. Aziridinyl carboxylate esters. GENERAL TIRE & RUBBER CO. 22 Dec., 1969, No. 62467/69. Heading C2C. [Also in Division C3] Novel aziridinyl compounds of the formula in which R 1 , R 2 , R 3  and R 4  are hydrogen or C 1-5  alkyl, R 5  is hydrogen, C 1-5  alkyl or C 2-5  alkenyl, R 6  is hydrogen, methyl or ethyl, R 7  is a C 1-16  bivalent hydrocarbon radical, X is either and R 8  is hydrogen or C 1-5  alkyl, are prepared by reacting one mole of an acrylate of the formula with either one mole of an aziridine to obtain compounds in which X is the epoxy radical or two moles of the aziridine I to obtain the compounds in which X is the aziridinyl radical. The reaction is preferably conducted at 15-40‹ C. by adding the aziridinyl reactant to the acrylate. The novel products readily polymerize, optionally in the presence of comonomers (see Division C3).
Patent GB-2002840-A (GB)
Title: Sliding door for a lift
IPC: B66B13/30
Filed: 1978-08-17
Abstract: The invention relates to a sliding door composed of two or more sections coupled to one another through a transmission (6), so that one section moves faster than another. The sections have abutments which overlap when the door is closed. To prevent any door section from opening or remaining open in the event of a fault in the transmission, a lost motion coupling is provided to limit relative movement between the door sections in at least one direction. The lost motion coupling in one embodiment takes the form of a lug projecting from one door section into a groove in another. <IMAGE>
Patent GB-2003420-A (GB)
Title: Rotationally moulded plastics playball
IPC: B29C41/04
Filed: 1978-08-23
Abstract: A moulded plastics playball having superior appearance and toughness more resembling a conventional leather ball than known moulded polyvinyl chloride playballs, is made by a single- stage process comprising charging the mould(s) of rotational moulding apparatus with uncured polyvinyl chloride plastisol and polyester elastomer in powder form, whereafter the mould is closed, rotated and heated so as to form a layer of uniform thickness within the mould with simultaneous fusion of the polyester and curing of the charge.
Patent GB-2033714-A (GB)
Title: A seed sprouter
IPC: A01G31/06
Filed: 1978-10-24
Abstract: A seed sprouter comprises a base container (17) and a number of seed trays (10) of identical configuration. Each tray has a multiplicity of apertures (13) in its base (12) which may take the form of concentric curved slots separated by radially extending portions of the base, the width of the slots being such as to prevent the passage of the smallest seeds which are required to germinate in the seed sprouter. The trays (10) are stackable one on top of another and are supportable on and over the base container (17). The trays may have lipped or recessed bases for locating engagement on the rim of the base container or on the rim (11) of another tray. <IMAGE>
Patent GB-2009838-A (GB)
Title: Fluid spray pump
IPC: B05B11/00
Filed: 1978-11-17
Abstract: A fluid spray pump for spraying a fluid from a fluid container 11 through a terminal orifice 76 comprises a cylinder 26 connected by a check valve 42 to the fluid container. A piston assembly 86, 64 is reciprocated by a trigger 60 and has channels 72 for communicating the cylinder 26 with the terminal orifice 76, opening and closing of the channels being controlled by an annular seal 104 movably mounted on the piston assembly. Alternative piston and seal constructions are described. <IMAGE>
Patent GB-2037860-A (GB)
Title: Waste Water Treatment Plant
IPC: E04B1/16
Filed: 1978-12-18
Abstract: A below ground waste water treatment plant is constructed by pouring concrete around an inflated bladder disposed in a hole in the ground, allowing the concrete to set to form the treatment vessel. The bladder may be deflated or pre-treated to bond to the concrete by heat curing to provide a smooth interior surface for the plant, which is preferably a right circular cylinder having a horizontal axis. The bladder may be made of rubberized canvas, polythene, polyester, polyurethane, or a layered combination thereof and the inflatory medium may be (heated) water. The bladder is shaped to provide inlet and outlet parts in the plant.
Patent GB-2012943-A (GB)
Title: Transparent Cover for a Solar Heating Panel
IPC: F24J2/50
Filed: 1979-01-18
Abstract: A building component, which may be used as transparent thermal insulation, comprises a flexible plastics substrate (162) having a thickness between 0.5 and 20 mils, and long wave infrared radiation reflecting means (164) capable of reflecting at least 70% of all long wave infrared radiation incident thereon. The reflecting means (164) and the substrate (162) in combination are at least 75% transmissive to visible and other solar radiation. <IMAGE>
Patent GB-2040653-A (GB)
Title: A cultivating tool
IPC: A01B15/04
Filed: 1979-02-05
Abstract: A cultivating tool, such as a ploughshare, has ribs 3 on its underneath surface extending back from its leading edge 2 in a direction parallel to the intended direction of movement of the tool in the ground. <IMAGE>
Patent GB-2054041-A (GB)
Title: Surge Suppression Device
IPC: F16L55/054
Filed: 1979-02-08
Abstract: Figure (1) shows a device which may be used to suppress Pressure Surges in pipelines. This method utilises a gas (Nitrogen) contained in a series of rubber (Neoprene, Viton, R.T.M. etc) annuli placed inside a short length of pipe having a larger diameter than the pipeline to be protected against Pressure Surges. The rubber annulus tubes would normally be inflated (via a compressed Nitrogen gas bottle) to the steady state pipeline system pressure. The only pressure differential subjected on the rubber would be from the positive or negative pressure Surges caused by inadvertent operation of system components. This device suppresses Pressure Surges due to the compressive or cushioning ability of the gas plus the additional effect due to pressure wave reflections and transmissions at its boundaries caused by changes in wave celerity inside the main pipe and this device. <IMAGE>
Patent GB-2014365-A (GB)
Title: Slide switch
IPC: H01H15/04
Filed: 1979-02-09
Abstract: In a sliding switch assembly having a contact slider 8 carrying a printed circuit, and a contact carrier 1 for resilient fixed contacts 27, 28 the contact carrier 1 is ladder-shaped and has a longitudinal slot 9 for receiving the contact slider 8 and the resilient fixed contact springs 27, 28 mounted on pins 14, 15 provided in rows on the contact carrier 1 and secured in position by cover plates 6. The contact spring tongues 27, 28 extend either upwardly or downwardly into contact with the contact slider 8 and have connecting lugs 20 for enabling connection to printed circuit boards 25, 26, or may be bent-over to enable connection of a measurement adapter (30) Fig. 11 (not shown). <IMAGE>
Patent GB-2013850-A (GB)
Title: Domestic auxiliary boilers
IPC: F24C13/00
Filed: 1979-02-12
Abstract: A domestic auxiliary boiler comprises a water heater 3 heated from a domestic oven 1 and supplying, directly or indirectly, heat to the hot water cylinder of the domestic hot water supply. The water heater is located between a rear or side wall 2 of the oven and thermal insulation 6 of the oven and ensures a supply of hot water whenever the oven is used. Oven performance is not adversely affected, and heat wastage as the oven cools down is reduced. <IMAGE>
Patent GB-2014810-A (GB)
Title: Motor control circuits
IPC: H02P6/20
Filed: 1979-02-15
Abstract: In a brushless D.C. motor employing a permanent magnet rotor 1 and a two winding stator 2, 3 with electronic switching 4, 5 responsive to rotor position to improve efficiency, switching of the stator current is initiated in advance of the rotor reaching its neutral position so that the stator poles have more or less completed their change by the time the rotor reaches the neutral position. However, as, on starting, the rotor might therefore oscillate back and forth instead of rotating an override circuit 14 is included. When the rotor starts from a position between (in the desired direction of rotation) the point at which switching is initiated and the subsequent neutral axis 35, the override circuit 14 maintains the initial condition of the switching circuit for a predetermined period irrespective of the rotor sensor 35 output during that period. <IMAGE>
Patent GB-2014845-A (GB)
Title: Rocking Chairs
IPC: A47C3/03
Filed: 1979-02-22
Abstract: A rocking chair in which the legs 16, 18 of the chair are mounted, at their lower ends, on two rockers 24 spaced apart and having convexly curved lower edges extending in the fore-and-aft direction. The rockers 24 rest on a base structure 25 comprising support members 26 on which the lower edges of the rockers rest respectively, and guide members 28 projecting upwardly from the support members to prevent lateral movement of the rockers as the chair rocks. Detachable catches 29, 30 may be provided to fasten the rockers to the base structure 25 if required. <IMAGE>