baber/WOPTO huggingface dataset:
Patent GB-1454394-A (GB)
Title: Heating panels
IPC: B29C33/02
Filed: 1973-02-22
Abstract: 1454394 Resistance heater NATIONAL RESEARCH DEVELOPMENT CORP 22 Feb 1974 [22 Feb 1973] 8709/73 Heading H5H A heating panel comprises one or more carbon fibre resistance layers 4 embedded in a matrix 2, 3 and provided with terminals, e.g. 5, each terminal 5 being located in the panel near an edge thereof and being in the form of a metal strip 6, 7 engaging a resistance layer 4 and an external terminal plate 8 extending along the edge. The matrix material may be polyester resin, epoxy resin polyimide resin, or cement, preferably high alumina cement. The panel may be reinforced by one or more glass fibre layers in the form of chopped strand mat. The carbon fibre is preferably high tensile strength carbon fibre as disclosed in Specification 1,110,791 (N.R.D.C.). The carbon fibre layer 4 is preferably in the form of carbon fibre paper or chopped carbon fibre strand mat. In one specific example seven layers of chopped strand glass fibre mat, 2, 3 were laid up on each side of one ply of chopped strand carbon mat 4 in a mould containing as matrix material a resin mix comprising epoxy resin, methylnadic anhydride hardener and benzyl dimethylamine catalyst. Connector strips prepared by soldering copper strips 6 to tinned copper strips 7 were laid up on opposite edges of the carbon fibre layer. As shown two such connector strips sandwich one edge of the carbon fibre layer 4. The panel was pressed to the desired thickness in the heated mould and the end faces were ground clean and square to enable copper terminal plates 8 to be soft soldered to each end panel. In another example the panel matrix contained four plies of glass fibre mat, one carbon mat, seven of glass fibre, one of carbon and four of glass fibre. At one edge the carbon fibre mats were connected by a terminal plate and at the opposite edge each mat was connected to a separate terminal plate which were insulated from one another by cold curing rubber sealant and mica sheet. The panel may be used as a curing platen for pressure or vacuum moulding Copending Application 8708/73 as drying boards, self heated structural panels, wall or shelf units for warm cupboards, or storage bins for armaments. The panels may be flat or curved.
Patent GB-558494-A (GB)
Title: Improvements in or relating to the production of amino acids such as alanine
Filed: 1942-06-25
Abstract: 558,494. Amino acids; histidine; pantothenic acid. NATIONAL OIL PRODUCTS CO. June 25, 1942, No. 8713. Convention date, July 15, 1941. [Class 2 (iii)] A cyanofatty acid having not more than six carbon atoms, and in which the cyano group is attached to a terminal carbon atom is hydrogenated in the presence of acetic acid, an inorganic acid and a hydrogenation catalyst. The resulting amino fatty acids may be used in the manufacture of pantothenic acid and hist'dine. In place of the cyano fatty acid, a derivative thereof, such as an ester or amide may be used. The propyl, butyl and amyl esters of cyanoacetic acid are mentioned. As inorganic acids, hydrochloric, phosphoric or sulphuric acid may be used. In examples, methyl cyanoacetate, ethyl cyanoacetate and cyanoacetic acid are dissolved in glacial acetic acid and hydrogenated after adding sulphuric acid and platinum oxide. The resulting amino esters are hydrolysed and the sulphuric acid removed by precipitation by means of barium hydroxide. The production of 8-amino butyric acid is mentioned.
Patent GB-234590-A (GB)
Title: Improvements in and relating to mouth-blown musical instruments
IPC: G10D9/04
Filed: 1924-04-07
Abstract: 234,590. Claff, A. April 7, 1924. Wood and like wind instruments.-Reed instruments, such as saxophones. clarinets, and oboes, are made telescopic to produce their notes by variations in length of the body. In Fig. 1, the innermost part 1 carrying a saxophone mouthpiece 3 is rigidly connected at 17 to the bell 16, the other elements sliding on or within these parts by means of guides 7 and packing 6 as the U-piece is drawn outwards or inwards by a finger-piece 22 or the like. The U-piece 11 is provided with an octave-hole 18, and the bell 16 may be provided with similar holes raising the pitch of the instrument one or more tones. The instrument may be suspended from the neck of the player by a. cord attached to a bracket 21. In Fig 3, the telescopic sections are arranged within a casing 36 carrying a bell 37 and are collapsed by a finger-piece (not shown) which is attached to the largest section 35 and projects through a slot in the casing. Holes 41 may be made in the casing to facilitate the emission of the notes or for ornament.
Patent GB-609700-A (GB)
Title: Oil burners
IPC: F23D11/00
Filed: 1946-03-21
Abstract: 609,700. Oil burners. TRIGGS, W. W. (Gilbert & Barker Manufacturing Co.). March 21, 1946, No. 8745. [Class 75(1)] [Also in Group XXIV] A gun type oil burner for hot water and domestic heaters comprises an electrically driven pump and a fan supplying oil and air to a pressure atomizing nozzle 12 and a cylinder 3 respectively, the cylinder 3 enclosing a perforated cylinder 14 from which jets of air impinge radially on the atomized fuel issuing from the nozzle 12 so that combustion initiated at electrodes 15 starts inside the space B. The cylinder 14 is closed at its rear end by a member 13 which may be formed with openings fitted with sliding covers for supplying additional air to assist in breaking up the oil spray. The member 13 may be adjustable on the oil supply pipe 11. The electric motor drives the fan directly and the oil pump through a centrifugal clutch (see Group XXIV) so that oil is not supplied until the fan is in substantially full operation. The oil pressure is maintained constant by a spring-pressed bye-pass valve 30a shown in Fig. 7 fitted to the oil supply pipe 11. The valve 30a opens when the limiting pressure is reached to allow oil to pass from a passage 31 through registering openings 32, 33 to a passage 34 connected to the suction side of the pump. The limiting pressure may be adjusted by turning a screw 36 normally covered by a sealing cap 37 to vary the compression of a spring 35. The burner shown enables an atomizing nozzle having g tangential grooves leading to an orifice of a size designed to deliver about 1 gallon an hour when oil is supplied at 100 lbs. per sq. in. pressure to be used to burn oil at 25 lbs. per sq. in. pressure with a consumption of ¢ gallon an hour.
Patent GB-840387-A (GB)
Title: Production of polymeric phosphams
IPC: C07F9/535
Filed: 1957-03-15
Abstract: Polymeric phosphams are prepared by condensing a phosphonitrilic diamide with dry hydrogen chloride.  Water-soluble products are prepared by reacting at or below 0 DEG  C. and water-insoluble products are formed at 50-170 DEG  C.  The NH4Cl also formed may be removed from the polymeric phospham by washing with liquid ammonia.
Patent GB-392332-A (GB)
Title: Cushioning devices for pneumatic hammers
IPC: B25D17/04
Filed: 1932-03-24
Abstract: 392,332. Pneumatic hammers. FAUDI, F., 190, Hansa-Allee, HEIMANN, C. and DEICHMANN, P., (trading as EHRENREICH ET CIE, A.), both in Oberkassel, D³sseldorf, Germany. March 24, 1932, No. 8839. Convention date, June 25, 1931. [Class 124.] The handle g of a pneumatic hammer is cushioned against vibration by air contained in a cylinder c. For light blows this space is open to fullline pressure from the inlet e but further movement successively throttle the inlet, closes it, and finally completely encloses air in the lower part of the cylinder. In the intermediate stages a byepass h allows air to act on the upper side of the differential piston f.
Patent GB-855290-A (GB)
Title: Improvements relating to machines for filling containers with fluids
Inventor: GILL JOHN SPEAR
IPC: B65B55/24
Filed: 1958-03-21
Abstract: 855,290. Bottling. MATHER & PLATT Ltd. June 12, 1959 [March 21, 1958], No. 9073/58. Class 125(2). A filling machine comprises a stationary disc d around the underside of which rotates a head f having filling nozzles g which co-operate with containers c moving on a conveyer a and is characterised by a revolving spindle which catches drips from the nozzles as they leave the container and a scraper ki which cooperates with the spindle to scrape the liquid thereon into the tray k. A second scraper m at the opposite end of the tray is flexible removes any liquid remaining on the nozzle. Liquid is supplied to the nozzles through the pipe e and a chamber h between the stationary and revolving discs. According to the Provisional Specification the spindle moves at high speed and may comprise a belt.
Patent GB-900363-A (GB)
Title: Improvements in or relating to signal storage tubes
Inventor: CALLICK ERIC BRIAN BUTLER
IPC: H01J31/18
Filed: 1960-03-15
Abstract: 900,363. Cathode-ray storage tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Dec. 13, 1960 [March 15, 1960], No. 9085/60. Class 39 (1). In a direct viewing signal storage tube the flood gun 7 is positioned between the writing gun 6 and the storage electrode 3 and the cathode of the flood gun is formed of a grid or mesh so that the writing beam passes through it. The flood gun consists of a directly or indirectly heated cathode grid 71 of high transparency and an anode grid 72 also of high transparency. The anode grid 72 may be replaced by a wall anode. The cathode 71 may consist of heater wires mounted parallel to one another in zig-zag fashion across an annular mica mount fitted concentrically in the tube neck. Grid 4 is a secondary electron collector and an accelerator grid 5 may be provided between the storage electrode 3 and the fluorescent screen 2 as in Specification 890,627. The tube is immersed in a longitudinal magnetic field provided by coils 8 and 9 so that the flood electrons are distributed normally and uniformly over the storage electrode. The flood gun is continuously on. The writing beam is aligned on the axis of the tube by the coil 10 and is deflected by the coil system 11. The signals to be stored may be used to modulate the writing beam, the collector electrode 4 or the metal grid 31 of the storage electrode 3.
Patent GB-1375759-A (GB)
IPC: C08L23/22
Filed: 1972-02-28
Abstract: 1375759 Dehydrohalogenation of halobutyl rubber; rubber compositions EXXON RESEARCH & ENG CO 28 Feb 1972 [23 Feb 1972 (2)] 9137/72 Headings C3P and C3Q Copolymers of 85-99À5 wt. per cent of a C 4-7  isoolefin with 15-0À5 wt. per cent of a C 4-14  conjugated diolefin, said copolymers having a number average M.W. of 25,000 to 500,000 and containing conjugated diene unsaturation in the linear backbone thereof, are produced by contacting a solution of a halogenated butyl rubber with a mixture of (a) from 2 x 10 to 2 x 10 moles, per 100 grams rubber, of a soluble carboxylate of a Group Ib, IIb, IVa or VIII metal (Mendeleev); (b) 0-2 moles of a carboxylic acid per gram atom of halogen in said rubber; and (c) 0À5-2 moles, per gram atom of halogen in said rubber, of a Group Ia or IIa metal oxide, hydroxide or carboxylate. In examples, commercial chlorinated butyl rubbers are treated in xylene solution with mixtures comprising (a) zinc salts of naphthenic, neo-decanoic, neo-heptanoic, mixed neo-C 9-13  or mixed neo-C 9-10  acids; (b) the corresponding free acids; and (c) CaO, MgO or Ca(OH) 2 . Certain of the products are stated to contain ester groups. The above products are curable, e.g. with such polyfunctional curing agents as m-phenylenebis-maleimide, ethylene glycol dimethacrylate and trimethylene propane trimethacrylate; and are vulcanizable with conventional sulphurcontaining systems. They are also co-vulcanizable with other rubbers, e.g. natural rubber and SBR. Formulated compositions also contain additives selected from carbon black, processing oil and di(tertbutyl)-p-cresol.
Patent GB-608129-A (GB)
Title: Means for measuring and recording the filtrability of fluids
IPC: B01D37/04
Filed: 1945-04-12
Abstract: 608,129. Testing filtrability of fluids. BOUCHER. P. L.. ROWNTREE N. A. F., and GLENFIELD & KENNEDY, Ltd. April 12, 1945. No. 9142. [Class 46] [Also in Groups XIX and XXVIII] Apparatus for testing filtrability of fluids comprises a filtering unit, means for measuring and recording the filtrability or filtrability index of a fluid and means for cleaning the unit by passing cleaning fluid therethrough. The filtrability is defined as a mathematical function of the rate of increase of loss of head with respect to volume filtered at constant rate of flow or in given variable conditions of flow, or as a function of the rate of decrease of flow with respect to the volume filtered at constant head loss or in given variable conditions of loss of head. The filtrability index is the reciprocal of the filtrability. In the arrangement shown in Figs. 1 and 2, a tank 1 with a constant head of liquid is connected by a pipe 2 to a filter 3, the outlet from which has three branches, one branch 7 leading to a drain 5, a branch 8 leading to a source of cleansing fluid, and a branch 9 leading to a leg 9A of a manometer 10. The manometer has electric contacts 11 which are closed when the pressure drops sufficiently in the leg 9A, and thereby close the circuit of a relay 12 whereby magnets operate valves controlling the flow of fluid, and also operate recording mechanism. This comprises a rotating drum 13 with a chart engaged by a pen 14. The pen is moved by a slide 18 controlled by means of a bell-crank lever 20 and a rotating cam 21, contoured so that the movement of the slide measures filtrability. When the contacts 11 are closed the motor driving the cam is stopped and an abutment 22 is acted on by means of a solenoid 23 to move across and, together with the slide 18, to clamp the pen while it traces a circumferential line on the chart. The transverse line between two circumferential lines is a measure of the filtrability of the liquid being tested. For recording the filtrability of gases the tank 1 may be replaced by bellows loaded to ensure that gas fed thereto will be stored and delivered at constant pressure. Instead of a drum chart a disc chart or a strip chart may be used. In the arrangement shown in Fig. 7 a rotatable fiter drum 32 is mounted in a receptacle 35 provided with an outlet 36. Fluid inside the drum is maintained at a constant level. Part of the drum is cleaned by fluid from nozzles 33, the fluid being collected in a trough 34 and discharged through a hollow trunnion. A float 37 is connected to recording mechanism adapted to record filtrability index values. In a further arrangement employing similar fluid-operated recording mechanism the filter is in the form of a rotating disc through a lower part of which fluid is passed from one tank to another, and through an upper part of which cleaning fluid is passed in the reverse direction.
Patent GB-681739-A (GB)
Title: Improvements relating to laundry marking or printing machines
IPC: D06F93/00
Filed: 1950-04-13
Abstract: 681,739. Laundry marking machines. TEXTILE MARKING MACHINE CO., Inc. April 13, 1950 [April 13, 1949], No. 9160/50. Class 100 (iv). A printing machine for printing identifying characters on articles 4 to be laundered comprises a row of settable typewheels 1 and a platen 3 operable to press the article to be printed towards the type 2 against an ink ribbon guided lengthwise over a row of type at an angle to the printing line so that the impression of the row of type is inclined relatively to the ribbon with the top of the first character adjacent one edge of the ribbon and the bottom of the last character is adjacent the other edge. In operation the article 4 is held on the platen 3 and moved towards the printing line by a lever 5 which is pivoted to the frame at 6. The ribbon guide 13 is carried by a pair of unequallength arms 14, 15 mounted on a rocking frame 25 so that as the lever 5 is rocked a part 24 thereon engages the frame 25 and moves the ribbon against the type 2. The ribbon is advanced by a rock arm 12 actuated by a link 9 attached to the arm 5.
Patent GB-1509339-A (GB)
Title: Canned pet food
IPC: A23K1/18
Filed: 1976-03-08
Abstract: 1509339 Pet foods STAR-KIST FOODS INC 8 March 1976 09169/76 Heading A2B A canned pet food comprises 25-90% meat of which 20-100% is fish; 3-10% (dry weight) of chunks 0.1-1.5 inches in size of which 80-99% is hard, red or durum wheat flour or farina, 0.05-5% is glycerol monostearate and 0.05-15% is a flavouring which is cheese, a cheese flavouring agent, fish or fish by-products; and an aqueous medium. The food may also contain up to 10% soy meal and 5-40% vegetables e.g. corn, carrots, potatoes or beans. The cereal chunks may contain up to 2% colouring material and up to 5% fat e.g. lard, beef tallow or hydrogenated palm. cottonseed or peanut oil. Also 1-7% of a thickening agent, e.g. carboxymethyl cellulose, starch or whey, may be present in the aqueous medium. The cans may be retorted at 220- 275‹F for e.g. 60 minutes. The fish may be red tuna meat. The cereal chunks may be shaped by mixing with up to 30% water and may then be dehydrated and stored.
Patent GB-1421894-A (GB)
Title: Inorganic-organic synthetic resins
IPC: C08L75/00
Filed: 1974-03-01
Abstract: 1421894 Porous cement compositions BAYER AG 1 March 1974 [17 May 1973] 9318/74 Addition to 1385605 Heading C1H [Also in Division C3] A quick-setting cement may be added to a reaction mixture for producing a macroscopically homogeneous inorganic-organic plastics composite material, the reaction mixture comprising (1) an aqueous sodium or potassium silicate solution and/or an aqueous silica sol and (2) a non-ionic organic prepolymer which contains reactive groups capable of polyaddition and/or polycondensation and/or polymerization and at least one non-ionic hydrophilic group, and optionally an agent which hardens the silicates, e.g. urea, HCHO and its condensates. The prepolymer (2) is most preferably an isocyanate group-containing polyurethane prepolymer and in Examples 9 and 10 such a prepolymer is mixed with a quick-setting cement and subsequently an aqueous sodium silicate solution, and with the aid of a blowing agent the reaction produces a finely porous foam. Reference has been directed by the Comptroller to Specification 1,186,771.
Patent GB-1457910-A (GB)
Title: Method for producing an overhead ignition-resistant thyristor
IPC: H01L21/332
Filed: 1974-03-01
Abstract: 1457910 Semiconductor devices LICENTIA PATENT VERWALTUNGS GmbH 1 March 1974 [2 March 1973] 9399/74 Heading H1K A method of producing an overhead ignitionresistant thyristor comprises making a conventional 4-layer structure 2-5, and subsequently increasing the doping in a localized region 8 in the base region 3 by introducing impurities, so that breakdown occurs during overvolting only in the localized region 8. The method of introducing the impurity is the same as that in Specification 1,457,909. The thyristor may have a central gate, a transverse field emitter or an amplifying gate.
Patent GB-1158058-A (GB)
Title: Improvements in or relating to reciprocating liquid dispensing pumps
IPC: B05B11/00
Filed: 1967-02-28
Abstract: 1,158,058. Reciprocating pumps. CALMAR Inc. Feb.28, 1967 [March 1, 1966], No.9446/67. Heading F1A. A hand-actuated dispensing pump for mounting on a container, e.g. for viscous liquids, comprises a bucket piston 18 movable against a spring 16 in a pumping chamber 20, the piston having resilient fingers 78 which frictionally engage the stem 74 of an inlet valve 26 to open the valve during the suction stroke and close the valve during the delivery stroke. The spring 16 acts on fingers 78 to increase their grip, and has a constricted coil 80 which acts on the inlet valve 26 at the end of the discharge stroke, and when the piston is locked in its slipping position shown by threaded roller 64. Coil 80 also limits the opening movement of inlet valve 26. Steps 86 and 84 on the valve stem are engaged by fingers 78 to initiate the opening and closing movements, respectively, of the valve 26. Further slipping seals are provided by the bottom of the piston skirt engaging in a groove in the bottom of the pumping chamber, and by a rib 56, formed during assembly of the pump, engaging portion 69 of the pump plunger. Discharge takes place through the plunger passage 28, ball valve 34 and spout 32. The container is vented through ports 68.
Patent GB-682616-A (GB)
Title: Improvements in or relating to control systems for electrically propelled vehicles
IPC: B60L9/12
Filed: 1950-04-18
Abstract: 682,616. Control of D.C. motors. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. April 18, 1950 [April 19, 1949], No. 9463/50. Class 38 (iii) [Also in Group XXXV] Two traction motors M1, M2, connected in series are fed through ignitor type rectifiers 24-27 the anodes 33 of which are supplied from one secondary 22 of a transformer T and the ignitor electrodes 35 and auxiliary anodes 36 of which are fed from a second secondary 23 through an impulse generator comprising reactors 48, 49, capacitor 51, rectifiers 52, 53 and balanced coil connections 54, 55. Voltages for application to the rectifiers are tapped off from the transformer secondary 22 by tap switches 1-12 alternate odd numbered switches feeding rectifiers 25, 27 respectively and alternate even numbered switches feeding rectifiers 24, 26. Ripple in the rectified current is reduced by a reactor 43 and filter circuit for preventing interference with communication circuits may be provided of the type described in Specification 682,610. Field shunting switches are also provided. In a modification Fig. 3 (not shown), resistors, which may be successively shunted by tap switches are provided in series with the motor fields for controlling the motors. Further switches are provided for connecting the motors in parallel, the motors being connected in a bridge circuit during the transition. A switch is also provided for disconnecting the A.C. supply and connecting the motors directly to a D.C. supply. In this embodiment the rectifiers have two ignitor electrodes to minimise the possibility of failure due to motion of the vehicle being driven, the electrodes of one rectifier of each pair being disposed longitudinally of the vehicle and those of the other pair laterally of the vehicle (see Group XXXV).
Patent GB-121912-A (GB)
Title: Improvements in Taps for Water and like Pipes.
Inventor: VITTORI CESARE
IPC: F16K43/00
Filed: 1918-06-10
Abstract: 121,912. Vittori, C. June 10, 1918. Lift valves; leakage, preventing.-In a screw-actuated lift valve which closes on to its seating by the action of the fluid pressure aided by a spring, as shown, an internal stuffing-box and packing 7, 8 are arranged at the bottom of the cover 1 to pack the rotary screwed spindle 6. The screw 17 is, preferably, left-handed.
Patent GB-1196188-A (GB)
Title: Process and Apparatus for Preparing Ethylene Polymers
IPC: C08F2/00
Filed: 1968-02-27
Abstract: 1,196,188. Polymerizing ethylene. STAMICARBON N.V. 27 Feb., 1968 [1 March, 1967], No. 9495/68. Heading C3P. Ethylene polymers are prepared by continuously passing ethylene or an ethylenecontaining monomer feed through a reactor at 100 to 400 C. and over 500 atmospheres in the presence of a free radical initiator, the polymerization being periodically interrupted or reduced and the passage of ethylene or ethylene-containing feed being continued during said periods of interruption or reduction under such conditions of temperature and pressure as to dissolve polyethylene deposited on the reactor wall. The interruption or reduction may be effected by interrupting or reducing the supply of initiator to the reaction zone. Chain transfer agents, e.g. propane, and other conventional additives may be present. Copolymerization with acrylic and methacrylic compounds, and vinyl acetate may be effected, and the initiator may be oxygen or an organic peroxide. Ethylene may be fed at a plurality of points, and the reactor contents subjected to periodic pressure pulses. Apparatus for carrying out the process is described, in which the supply of initiator is controlled by pressure sensitive or temperature sensitive means in the reactor.