baber/WOPTO huggingface dataset:
Patent GB-1516650-A (GB)
Title: Mineral cutter chains
IPC: E21C25/34
Filed: 1975-10-23
Abstract: 1516650 Chains AUSTIN HOY & CO Ltd 27 Sept 1976 [23 Oct 1975] 43675/75 Heading F2Q A cutter chain has links 1 each comprising a pair of side members disposed side-by-side and arranged for articulation to other links of the chain, each of the side members having a pair of lugs 5, the free ends of the lugs of one side member being united to the free ends of respective lugs of the other by welding 7, and a cutter tool support being located in a recess defined by the lugs.
Patent GB-1359839-A (GB)
Title: Hydrostatic bearings
IPC: F16C32/06
Filed: 1971-09-22
Abstract: 1359839 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 22 Sept 1971 [23 Sept 1970] 44260/71 Heading F2A A hydrostatic journal bearing comprises at least one pad 11 having a part-cylindrical surface with a recess 14 provided at a central location, the pad being mounted so as to be movable relative to the mounting, the recess being connected to a source of pressurized fluid, and there being at least two further recesses 17, 18 around the first recess connected to the first recess via throttled passages 21, 22. The pad is preferably square in plan and the first recess is circular, there being four triangular recesses in the corners of the pad. The pad may be mounted on its support 13 by means of a ball 12.
Patent GB-1463267-A (GB)
Title: Process for preparation of ammonium tetrafluoroaluminate
IPC: C01F7/788
Filed: 1975-10-28
Abstract: 1463267 Ammonium fluoroaluminates CENTRAL GLASS CO Ltd 28 Oct 1975 [28 Oct 1974] 44319/75 Heading C1A Ammonium tetrafluoroaluminate is prepared by maintaining, at atmospheric pressure and a temperature from room temperature to 100 C., an aqueous slurry of ammonium hexafluoroaluminate, aluminium hydroxide or oxide, and H 2 SO 4 , HCl or HNO 3 , the total weight hexafluoroaluminate and Al(OH) 3  or Al 2 O 3  being 10-40% of the weight of the slurry minus the weight of the acid. The slurry may be prepared by adding the acid to an aqueous slurry of the other components, and the latter may be obtained by adding Al(OH) 3  or Al 2 O 3  or Al 2 (SO 4 ) 3  to aqueous NH 4 F solution.
Patent GB-1205432-A (GB)
Title: Burner for use with fluid fuels
Inventor: DESTY DENIS HENRY
IPC: F23D17/00
Filed: 1967-01-10
Abstract: 1,205,432. Fluid fuel burners. BRITISH PETROLEUM CO. Ltd. 21 Dec., 1967 [10 Jan., 1967; 29 Sept., 1967], Nos. 1247/67 and 44376/67. Heading F4T. A burner for gaseous or liquid fuel comprises a fuel chamber 10 supplied through a pipe 12 and which has passing through it a plurality of combustion air tubes 11, 16 spaced apart at their top ends 14 to provide fuel outlet passages 15 and sealed together at their lower inlet ends to prevent escape of the fuel. The tubes may either be entirely cylindrical, e.g. tubes 16, or have regular polygonal end sections e.g. tubes 11, the former tubes being used for gaseous fuel and the latter for liquid fuel. The lower ends of the tubes are either sealed by welding or by a plate. The cross-sectional area of the air tubes are from 0À01-1À0 cm.<SP>2</SP> and their bores account for at least 25% of the surface area of the burner top face. In the case of liquid fuel the fuel vaporizes before entering the combustion space above the burner and the rate of burning is controlled by the level of the liquid in the chamber 10. In the case of gaseous fuel the burner is controlled by covering up part of the top face of the burner. The chamber 10 may be of polygonal cross-section. The air tubes may be located at their outlet ends by a plate which also acts as a baffle to deflect the combustion air into the fuel or vice versa. The plate may be provided with separate outlet ports for the fuel, Fig. 9, or the fuel escape between the plate and the air tubes. The burner may be used in a boiler of a central heating system or when used with excess combustion air used as an air heater. All or only parts of the burner may be made of ceramics including glass.
Patent GB-1527404-A (GB)
Title: Motor vehicle braking system
IPC: B60T8/36
Filed: 1976-10-26
Abstract: 1527404 Anti-skid braking systems FIAT SpA 26 Oct 1976 [31 Oct 1975] 44503/76 Heading F2F Valve closure 62 (Fig. 2) blocks communication between brake pressure line 18 and line 36 to a brake actuator, where, in response to a skid signal, an electrical valve armature 74 is moved to allow auxiliary pressure from line 28 past the electrical valve closure 88 into the space 66. The closure 62 has a peripheral lip 71 which allows the auxiliary pressure then to flow through to the brake actuator line 36. Brake pressure then builds up at a slower rate because of the restrictions in the passages for the auxiliary fluid. In Fig. 6, the positions of the lines 18, 36 are reversed and the main valve closure is of two part construction with a radial passage 144 and axial passage 132 to allow the auxiliary pressure fluid to flow into the brake actuator line 36.
Patent GB-963851-A (GB)
Title: Improvements relating to heads for electric immersion heaters
Inventor: OWEN WILLIAM GEORGE SYDNEY
IPC: H05B3/04
Filed: 1961-12-14
Abstract: 963,851. Electric dimension heaters. SANTON Ltd. Dec. 14, 1962 [Dec. 14, 1961], No. 44723/61. Heading H5H. A head 3 for an electric immersion heater has an integral hose 6 containing an aperture 7 for an earth wire and a screwthreaded hole 8 leading into aperture 7 in which is located a locking screw for securing the earth wire to head 3. In a ridge 4 round head 3 is an aperture 5 adjacent to aperture 7 which may act as a guide for the earth wire.
Patent GB-1001751-A (GB)
Title: Improvements in or relating to hand-operated plunger pumps
Inventor: EVES FREDERICK SYDNEY
IPC: F04B9/14
Filed: 1960-12-31
Abstract: 1,001,751. Reciprocating pumps. MUNSTER SIMMS & CO. Ltd. Jan. 1, 1962 [Dec. 31, 1960], No. 44911/60. Heading F1A. In a piston pump the piston rod 6 has an adjustable stop 8 whereby the distance the piston 5 extends into the barrel may be increased so that a threaded neck 10 on a foot valve 3 may be engaged by a threaded ring 9 on the piston for the purpose of removing the foot valve 3.
Patent GB-1197326-A (GB)
Title: Pyrazino[1,2-a]Quinolines and Process for Preparing Same
IPC: A61K31/00
Filed: 1967-10-03
Abstract: 1,197,326. Pyrazino[1,2a]quinolines. CIBA Ltd. 3 Oct., 1967 [5 Oct., 1966; 2 Feb., 1967; 11 Aug., 1967], No. 45005/67. Heading C2C. Novel 2,3,4,4a,5,6-hexahydro-1H-pyrazino- [1 ,2-a]quinolines which optionally contain on the aromatic ring one or more C 1-7  alkyl, C 1-7 ) alkoxy, C 1-7  alkenyloxy, CF 3 , halo, NO 2 , NH 2 , acylamino, OH or acyloxy substituents; in which the substitutable carbon atoms of the heterocyclic rings are unsubstituted or alkylated and which contain in the 3-position an aliphatic, cycloaliphatic-aliphatic (optionally substituted in the cycloaliphatic portion by 1 or more C 1-7  alkyl and/or C 1-7  alkylated endo- C 1-7 -alkylaene radicals) or araliphatic (optionally substituted in the aromatic ring by one or more of the above listed aromatic ring substituents) hydrocarbon radical R which contains in the α-position only hydrogen and/or carbon atoms; and which is substituted in the aliphatic portion by an oxo group and their salts are prepared by reacting the appropriate 3-unsubstituted pyrazinoquinoline with (a) RX where X is a halogen atom or (b) a corresponding α-#-unsaturated carbonyl compound. Intermediates isolated are 8-methyl-2,3,4,4a,5, 6 - hexahydro - 1H - pyrazino[l,2-a] - quinoline, prepared by debenzylation of the -3 benzylated compound and 8-methozy-2,3,4,4a,5,6-hezahydro-1H-pyrazino[1,2-a]quinoline, prepared similarly. Pharmaceutical compositions comprise one or more of the above novel compounds together with appropriate carrirs and/or diluents and are administered orally, rectally, or parenterally. They are effective as antihypertensives, sedatives and adrenolytics.
Patent GB-1138269-A (GB)
Title: Polymerization of acrylic and methacrylic acid esters
IPC: C08F20/12
Filed: 1967-10-04
Abstract: 1,138,269. Polymerization of acrylates and methacrylates. E. I. DU PONT DE NEMOURS & CO. 4 Oct., 1967 [16 Nov., 1966], No. 45113/67. Heading C3P. Acrylic and methacrylic acid esters are polymerized at 20 to 100 C. in the presence of a catalyst comprising a mono-tertiary butyl peroxymaleate, stannous chloride, and a tertiary amine hydrochloride having at least 8 carbon atoms, and in the presence of, as a chain transfer agent, a mercaptan. In the examples, methyl methacrylate is homo-polymerized (3) and copolymerized with ethylene glycol dimethacrylate (1, 4 and 5) and cyclohexyl methacrylate is copolymerized with ethylene glycol dimethacrylate (2), in each case together with dodecyl mercaptan, mono-4-butyl peroxymaleate, and SnCl 2 .2H 2 O and/or N,N- dimethylcyclohexylamine, phenylethyldibutylamine, or tribenzylamine hydrochlorides.
Patent GB-976204-A (GB)
Title: Improvements in or relating to data coding apparatus
IPC: G06F9/355
Filed: 1962-12-05
Abstract: 976, 204. Digital data stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 5, 1962 [Dec. 28, 1961], No. 45894/62. Heading G4C. A multi-bit character read photo-electrically from a punched tape 12 is stored in register 25, and selected groups of bits are read out from this register sequentially, these groups of bits being used to address a store which contains representations of the tape characters in 1, 2, 4, 8, A, B, C code at the corresponding addresses. If,as shown, the tape characters have less than eight bits, 1's are entered in the spare positions (6, 7, 8) of register 25. A timing circuit gates out the bit groups 7, 8; 4-6; 1-3; in sequence to register 40, a check bit being added by generator 35. Each address character is read out from register 40 bit by bit before the next one is entered, and is transferred in turn to a magnetic core matrix store 11. An address register 80 is then used to address the store (not shown) containing the recoded representation of the character. The address may be modified by means of a singlecharacter adder 90 which adds to each address character delivered by register 40, the corresponding one of three characters stored in modifier register 91.
Patent GB-1484502-A (GB)
Title: Visitor confirmation system
IPC: H04N7/173
Filed: 1974-10-24
Abstract: 1484502 Community TV and door announcer HOCHIKI CORP 24 Oct 1974 [24 Oct 1973] 46074/74 Heading H4R and H4K A door annunciator system is combined with a cable TV system so as to enable the visitor to be seen on a monitor TV in a residence selected by the use of a telephone situated at an entrance. In a first embodiment a TV camera 11 is coupled via circuitry including a mixer 3 to a cable TV system involving lines l 1 -l 4  and an entrance telephone is coupled via an exchange 9 to a telephone 8A-8C in each residence using high quality audio lines L3, L2. When a visitor lifts the handset the TV camera is immediately energized to supply a picture signal to the TV system. The visitor then selects the required resident and the selection signals together with a control signal frequency from oscillator 13, which frequency is outside the speech range of 20 Hz to 30 kHz, are transmitted to the selection circuitry 9 which operates to connect the control signal to the selected telephone. The telephone is rung and the control signal also. causes a power switch of a monitor TV set 16 separate from the resident's normal TV receiver 7, to be operated. In a modification the selection signals are also coupled via circuits 9<SP>1</SP>, 13<SP>1</SP>, 3<SP>1</SP> to the cable TV system, and each controller 17 recognizes the selection signals appropriate to the respective resident to connect the monitor TV set to the cable system and to connect up its power supply. With such an arrangement the monitor TV set can be energized even if the resident is already engaged in a telephone conversation when the visitor calls. The television camera 11 may alternatively be switched on by use of a tread switch or a photoelectric switching device. Reference has been directed by the Comptroller to Specification 1,412,806.
Patent GB-1235952-A (GB)
Title: Improvements in or relating to sterilization autoclaves
Inventor: CLAUDI VITTORIO
IPC: A61L2/24
Filed: 1969-09-19
Abstract: 1,235,952. Steam autoclave. V. CLAUDI. 19 Sept., 1969 [29 Oct., 1968], No. 46286/69. Heading A5G. A serilizing autoclave 9 with door 11 is supplied with steam via the conduit 7 which passes through the heater 14 and communicates with the. water feed tank 1 via the shutoff valve 21, injection pump 5 and pipe 3.-A pipe 15, 19 passes from the autoclave to a point in the feed tank above the water level via the condenser 17 and shut-off valve 23 and there is an additional conduit 25 which connects the inside of the autoclave to the atmosphere via the shut-off valve 29 and filter 28 and which also passes through the heater 14. The whole is arranged for automatic operation and is controlled by a conventional programming device 37. In operation, with valve 29 off and valves 21 and 23 open, water from the tank is converted into steam during its passage through the heater, the steam passes into the autoclave chamber and emerges, together with air via the return pipe 15, 19; the water condensing in the cooling coil 20 and being returned to the tank and the air passing to the atmosphere via the outlet 2. When the air has all been expelled, valve 23 is closed and steam continues to enter the autoclave until the sterilization temperature and pressure is reached. This is then maintained for a period, after which valve 23 is opened and the chamber is vented, the valve is reclosed and the sterilization proper is commenced. When sterilization is complete, the steam supply is discontinued, cooling fluid is fed into the cooling coil 33 to condense the steam and valve 29 is opened to allow ingress of filtered air to equalize the pressure within the chamber so that the door may be opened.
Patent GB-1198505-A (GB)
Title: Devices for Locking Terminal Elements to Control Rods
IPC: B64C13/30
Filed: 1967-10-12
Abstract: 1,198,505. Locking fastener assemblies; construction of links. AVIONS MARCEL DASSAULT. 12 Oct., 1967 [10 Nov., 1966], No. 46643/67. Headings F2H and F2K. A locking device for connecting a control rod 1 to a terminal element 4 comprises a sleeve 6 having tongues 7 which engage in seatings 8 in the terminal element and the sleeve being crimped into crimping contours 3 provided on the rod or on an element 2 rigidly connected thereto. The terminal element 4 may be screwed into the rod 1 or be fixed by a hook or latch arrangement. The element 4 is made, for example, of a titanium-vanadium alloy, the locking sleeve 6 is preferably made of malleable steel, and the rod 1 is made, for example, of aluminium alloy.
Patent GB-1007935-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B04B3/02
Filed: 1961-12-29
Abstract: 1,007,935. Centrifugal strainer separators. ESHER WYSS A.G. Dec. 29, 1961 [Dec. 29, 1960], No. 46683/61. Heading B1D The screening surface of centrifuge apparatus is sub-divided into a number of small-diameter screening drums through which the material being centrifuged flows in parallel. As shown, pusher-centrifuges, each driven by its own motor, are arranged honeycomb-fashion (viewed horizontally), and staggered so that solids discharged from the upper members (by perforate fixed annular troughs) are not impeded by lower members. A common conveyer belt 25 is provided. In Figs. 1 and 2 (not shown) only two mutually-displaced horizontal rows are provided (one above the other), and staggering is not necessary.
Patent GB-1443944-A (GB)
Title: Optical filters
IPC: G02B5/28
Filed: 1972-10-12
Abstract: 1443944 Optical filters STANDARD TELEPHONES & CABLES Ltd 9 Oct 1973 [12 Oct 1972] 47029/72 Heading G2J An optical filter which has a non-uniform transmissivity of the type having windows in the red, green and the blue regions of the spectrum comprises an interference multi-layer filter of the Fabry Perot type consisting of one or more sections, each section consisting of an odd number of alternate layers of high and low refractive index material arranged in a stack, each layer being a quarter wavelength thick with the exception of the centre layer of the stack which layer is an integral number of half wavelengths thick. The centre layer may be of zinc selenide.
Patent GB-1414122-A (GB)
Title: Preparation of photographic colour separation record
IPC: G03F3/06
Filed: 1971-10-12
Abstract: 1414122 Photographic colour separation record production J R DENNER 9 Jan 1973 [12 Oct 1971] 47477/71 Headings G2C and G2X Colour separation records of an original are prepared by making a same-size colour-correction mask or masks of the original, exposing the original and the mask or one of the masks together to produce a colour-corrected transparency of the original and preparing a plurality of colour-separated records from a single said transparency. The colour-corrected transparency is preferably of reduced size. A plurality of single colour-corrected transparencies of respective originals may be planned up together on a single clear carrier and a plurality of colourseparated records may be prepared of the composite formed. The colour-separation records produced are preferably full size and may be used to produce printing plates. In this invention colour correction is effected before colourseparation record production whereas previously colour correction was effected at the same time as or after colour-separation record production.
Patent GB-1075677-A (GB)
Title: Improvements in or relating to welding
Inventor: SMITH ALAN KEPPIE
IPC: B23K9/00
Filed: 1962-12-17
Abstract: 1,075,677. Welding by fusion. BABCOCK & WILCOX Ltd. Dec. 17, 1963 [Dec.17, 1962 (2); Dec. 17, 1963], Nos. 47504/62 and 47505/62. Heading B3R. A tube panel is made by forming the welds in one side by gas-shielded short-circuiting are welding, reversing the panel and forming the welds on the other side by spray transfer gas-shielded arc welding. A central group of welds is made in a single pass and spaced groups of welds are made alternately on each side of the central group. The intervening spaces are then welded. The panel is reversed and groups of welds are made on the other side in reverse order. Tubes preferably ribbed may be welded directly to each other or as shown, spacing strips 3 may be interspaced between the tubes. The spacing strips 3 are located slightly off-centre of the tube panel to an extent such that the surfaces of the weld beads produced by the different above-mentioned welding techniques are equidistant from the centre line of the panel. In a machine for welding tubes 2 and spacer strips 3 to form a tube panel six welds are simultaneously made in each pass by six welding heads 42 carried in pairs on three beams 11, each suspended on parallel links 9, 10, pivoted between depending side members 6 of a support 5. Each beam 11 is resiliently pressed downwards by an adjustable spring 25 acting between a link 10 and a bar 17 fixed between the members 6. Adjustable stops 16 are provided to limit the downward movement of the beams 11. The welding heads 42 are each mounted in a block 40 pivotable about a reduced cylindrical portion 11b of a beam 11 by a screw-threaded adjuster 45 mounted on a stirrup 44 conneted to the beam 11. The welding heads 42 of each pair are oppositely directed. Resiliently mounted behind each welding head 42 is a return electrode in the form of a wheel 60 urged by a spring 71 against the tubes 2 and engaged by a spring-loaded brush 69 connected to a welding current terminal 73. Each beam 11 carries for each welding head a gas supply tube 50 located behind or in front of the electrode guide tube 42a or concentric therewith. A guide wheel 82 is mounted on each beam 11. One return electrode may serve for two welding heads. The tubes and strips to form a panel are supported on a structure comprising spaced parallel beams having arcuate recesses to receive the tubes. A gantry straddling the structure and running on rails parallel to the tubes supports a transversely movable truck. The support 5 is mounted beneath the truck and is hydraulically movable in a vertical direction. Hold-down rollers pressing on the work are similarly carried by the truck.
Patent GB-1104578-A (GB)
Title: Pattern contour tracing apparatus
Inventor: BARDWELL FRANCIS GREGORY
Filed: 1966-10-24
Abstract: 1,104,578. Photo-electric path follower. STEWART-WARNER CORPORATION. Oct. 24, 1966, No.47661/66. Heading G1A. In a path follower a pulsed light source illuminates the path to be followed, such as a line or edge, an image of which is projected on to two photo-voltaic cells which between them define the reference line of the follower: any misalignment of the follower and the part of the path being viewed unbalances the cells to drive the follower back into alignment. In one arrangement two pulsed lamps illuminate the same area of the path 26 (Fig. 4) which is viewed by two cells 68, 68' positioned one on either side of the reference line 45 and in front of the vertical rotational axis (point 22) and by two other cells 70, 70' similarly positioned but behind the vertical axis. Fig. 4 shows a block 34 of semi-conductor material upon a base electrode 36 and having an upper electrode 34, the same size as the block, which has a cutout area 82 to expose the semi-conductor material which is cut up to form the individual cells appropriately positioned to form the reference line 45 and relative to the axis 22. By both adding and subtracting the difference signal of each pair 68, 68' and 70, 70' the degree of transverse deviation and angular deviation, respectively, can be obtained to drive the follower into alignment. The phase of these signals indicates the direction of deviation. Warning is given if the deviation is such that the line image 26 leaves either of the cell areas 112 or 112' for the outer cell areas 114, 114'. In an arrangement for following an edge (Fig. 9) the centre line of cells 170, 170' form the reference line 45 of the follower and their difference in output indicates the angular deviation. The transverse deviation being provided by the difference of the sum signals of cells 170 and 170' and cells 176 and 176'. Cells 198 and 198' give warning of a complete stray from the edge. In another arrangement Figs. 7 and 8 (not shown) for following a line the first pair of cells are forward of the axis (22) and the second pair are centred about the axis. The difference signal of the first pair provides the transverse deviation signal and the sum of the difference signals of both pairs provides the angular deviation signal.
Patent GB-1004495-A (GB)
Title: Improvements in polyethylene compositions
IPC: C08K5/09
Filed: 1962-12-18
Abstract: The organic peroxide cross-linking of polyethylene/filler mixtures is promoted by the addition of a fatty acid or oil, e.g. stearic or lauric acid or soya bean or linseed oil.  Fillers specified are carbon black, kaolin, chalk, zinc oxide and magnesium oxide.  The products find application as insulation for electric cables.
Patent GB-1194020-A (GB)
Title: Improved magnetron structure for use in microwave cooking apparatus
IPC: H05B6/80
Filed: 1967-11-17
Abstract: 1,194,020. Magnetrons. BOWMAR/TIC Inc. 17 Nov., 1967 [21 Nov., 1966], No. 47823/68. Divided out of 1,194,019. Heading H1D. A strapped-vane multi-cavity magnetron has polysided straps 116, 118 secured respectively at their corners and sides to alternate vanes 110, the grooves 114 provided in the vanes being all located in similar positions and having straight parallel sides and V-shaped bottoms to ensure strap clearance. The magnetron polepieces 90 have rounded inner faces as shown, the lower polepiece enclosing the exhaust tube 96 and the upper polepiece the cathode and heater connections 146, 158. The power supply is isolated from the anode block by element 172 which constitutes with the surrounding surfaces a high-frequency coaxialline choke. The ends of the permanent magnet 94 engage flat faces on slidable magnetic sleeves 92 mounted on the polepieces 96.