baber/WOPTO huggingface dataset:
Patent GB-1523347-A (GB)
Title: Pyroelectric tragets
IPC: H01J29/45
Filed: 1976-11-16
Abstract: 1523347 Image pick-up tubes DEFENCE SECRETARY OF STATE FOR 16 Nov 1976 [17 Nov 1975] 47348/75 Headings H1K and H1D In a pyroelectric target, typically for a vidicon tube, comprising an array of pyro. electric elements 22, grooves (17), Fig. 3 (not shown) between the elements are filled with an epoxy resin having thermal diffusivity less than that of the pyroelectric elements so as to reduce lateral thermal diffusion in the target. The grooves (17) are formed either in a single crystal slice of lead germanate doped with silicon or boron, or in a pressed ceramic pyroelectric slice, either by photolithography followed by chemical etching, by using electron beam or by mechanical grinding. In one example, after filling the grooves with an epoxy resin, e.g. "Araldite" (Trade Mark) having thermal diffusivity less than 0À1 mm.<SP>2</SP> sec.<SP>-1</SP>, both the faces of the slice are polished so that the elements 22 are separated by a square network or epoxy resin regions 23. A front electrode 25, i.e. an electrode on which the thermal image is to be focused, of nickel/ chromium alloy comprises means 27 in contact with the elements 22, connected by narrow strips 29 of the electrode material so as to reduce lateral heat diffusion in the electrode. A back electrode structure having isolated elements may be provided on the surface of the target which is scanned by an electron beam in a vidicon tube. The lateral heat spread may further be reduced by grooving the epoxy resin regions. The ferroelectric domains of the target are aligned using a steady electric field. A pyroelectric vidicon tube employing the target, and an associated electrical circuit are described, Fig. 9 (not shown)
Patent GB-1168973-A (GB)
Title: Improvements in or relating to Forceps
Inventor: CAFFAREL JOSEPH CAMILLE
IPC: A61C3/14
Filed: 1966-10-24
Abstract: 1,168,973. Dental forceps. J. C. CAFFAREL. 24 Oct., 1966 [25 Oct., 1965], No. 47554/ 66. Heading A5R. Dental forceps comprise an outer tubular member 1, an inner tubular member 2, which is slidable within the outer tubular member and pivotally supports a pair of jaws 5 at one end, levers 11 pivotal on the outer tubular member and arranged through links 12 or toothed wheels (15, Figure 3) co-operating with racks and pinions (16) to slide the inner tubular member relative to the outer tubular member, so that the jaws may be moved from an open position to a closed position partially within the outer tubular member, and Tesilient means for urging the jaws to their open position. The resilient means comprise a spring 10 between the jaws and a spring 3 between the inner tubular member and a closure 4 for the outer tubular member for urging the inner tubular member to a position in which the jaws project from the outer tubular member. Alternatively, springs (3a, Figure 3) between the levers 11 and the outer tubular member urge the levers into their position in which the jaws project. Preferably, each jaw has ribs 7 for engaging grooves 8 in a flange (9) threaded on the outer tubular member. Supports (19, 20 Figure 4) for taking thrust against the teeth adjacent the tooth to be extracted may be removably threaded to the flange (9).
Patent GB-1121909-A (GB)
Title: Improvements in or relating to surface heat exchangers
Inventor: CHLUMSKY VLADIMIR
IPC: F28F9/22
Filed: 1965-11-10
Abstract: 1,121,909. Tubular heat exchangers. CKD PRAHA, OBOROVY PODNIK. 10 Nov., 1965, No. 47653/65. Heading F4S. In a tubular heat exchanger, either or both of two fluids in heat exchange with one another through the tube walls, is a gas, and heat transfer is improved by introducing a liquid into the gas to form therewith a foaming emulsion passing through or over the tubes. The liquid is subsequently withdrawn from the emulsion in a separator 9 which may be in the outlet header of the heat exchanger or externally of the heat exchanger. The withdrawn liquid is recirculated to the gas inlet zone of the heat exchanger or fresh liquid may be provided. A gas cooler is shown in which an emulsion of the gas to be cooled, and a foaming liquid, e.g. water, flows through the tubes 2 over which flows a coolant which itself may also be a gasliquid emulsion (Figs. 2 and 3). The foaming liquid is introduced into the gas from a reservoir 15, control valve 16 and a pipe 14, at a point just above a grill 6 through which the gas to be contacted by the liquid is introduced  through a duct 5 and connection 4.
Patent GB-1330318-A (GB)
Title: Speed change mechanism
IPC: F16H61/02
Filed: 1970-10-07
Abstract: 1330318 Change-speed control AISIN SEIKI K K 7 Oct 1970 [7 Oct 1969 (2)] 47716/70 Heading F2D 1-2 and 2-3 shift-fork-pins 70, 71, of a fourspeed and reverse countershaft transmission (Fig. 1, not shown) on a motor-vehicle, are actuated by two (or a continuous single) cam slots 68, 69, in a rotary selector disc 41, which is turned by a linear or rotary piston fluid servo 59, supplied with fluid pressure to one side or other 60, 62 of its piston 66 through a shiftvalve 35, which is moved rightwards for upshift by speed-responsive pressure 53 from an outputdriven governor 51, and is returned in the opposite direction by a cam surface 41a on the selector disc 41 itself. From the position shown, with both servo chambers 60, 62 exhausted through the shiftvalve 35, the latter is moved rightwards to establish first ratio by a manual shift lever acting on the valve at B, pressurizing the chamber 60. The rotary piston 66 and connected cam selector disc 41 are thereby turned clockwise to first ratio setting, upon which the cam surface 41a returns the shift-valve 35 back leftwards to the position shown, with both chambers 60, 62 exhausted. With increasing speed, governor pressure 53 effects further upshift steps in a similar manner. Downshift steps are similarly effected when a leftward bias spring 39 overcomes governor pressure 53. The output pressure produced by the governor 51 may also respond to engine load, as manifested by the degree of throttle opening, and the governor for this purpose may be that described in U.S.A. Specification 3,590,663.
Patent GB-1097990-A (GB)
Title: Improvements in or relating to a device for dispensing loose materials
IPC: A24C5/39
Filed: 1965-11-10
Abstract: 1,097,990. Feeding tobacco. W. QUESTER [trading as WILH. QUESTER]. Nov. 10, 1965 [Nov. 24, 1964], No. 47810/65. Heading A2C. A device for feeding a number of cigarette machines with cut tobacco comprises a feed hopper 1 from which tobacco is delivered to a distributer cone 2, the axis of which is rotated about the axis of the hopper around a circle of diameter 2e to form a fleece between surfaces 4, 5 from which it may be fed though closeable openings 6 to cigarette making machines. The openings 6 may be hinged, sliding or swinging flaps and the surfaces 4 and 5 may have a cross-section as shown, or a rectangular cross-section. A rotating cone 9 may be placed between the cone 2 and the hopper 1.
Patent GB-1209623-A (GB)
Title: Method of manufacturing a permanent magnetic alloy body
Inventor: KOMAKI SADAICHI
IPC: H01F1/04
Filed: 1967-10-25
Abstract: 1,209,623. zone-melting.- S. KOMAKI. 25 Oct., 1967 [25 Oct., 1966], No. 48448/67. Heading B1S. [Also in Division C7] A permanent magnetic alloy. body with columnar crystals having improved magnetic properties in the axial direction equal to those of a single crystal magnet is made by casting a plurality of magnetic alloy blanks 1 comprising 25-40% Co, 10-20% Ni, 6-12% Al, 0-6% Cu, 2-10% Ti, and balance Fe and impurities, applying a coat 3 of sulphur to the surface of each blank preferably in a proportion of 1À5-3À3%, inserting the blanks in a non-magnetisable preferably porous sheath 5, passing the blank-containing sheath at constant speed downwardly, e.g. by a cord 7 through a high-frequency induction coil 6 to progressively heat and melt the blanks to cause recrystallisation, then into a coolant liquid 8, e.g. water to progressively quench portions of the blank spaced at a predetermined distance from the coil to produce unidirectionally oriented crystals. The sulphur coat 3 reacts during melting with an oxide or nitride coat forming a flame 10; sulphur is retained in the alloy. The top blank forms a waste magnet 4, as shown. The sulphur coat may be 0.5-0.7 mm. thick and applied over an oxide coat 0.05-0.1 mm. thick on opposite end surfaces of each blank by inserting the ends in turn into a sulphur melt. Japanese specifications are referred to in which similar large columnar crystals are obtained in a Ti-containing "Alnico" alloy (Ni-Co-Al-Cu- Fe) by adding S, C and/or Se to the alloy and melting together, casting in a mould and quenching by means of a chill plate from one end of the casting (Fig. 6). Columnar crystals may also be rendered larger by heating the blanks above 1,20Q‹C by high-frequency electric current or combustion of gas.
Patent GB-1072256-A (GB)
Title: Improvements in telecommunication systems
IPC: H04J14/08
Filed: 1963-12-10
Abstract: 1,072,256. Photo-electric apparatus. AURELIO BELTRAMI. Dec. 10, 1963 [Dec. 11, 1962], No.48643/63. Heading G1A. [Also in Division H4] Two-way multiplex signalling of a plurality of signals originating from stations A, B etc. (as illustrated the stations are video-phonic stations of the kind described in Specification 1, 049, 449, although reference is made to video, phonic, telegraphic, computer data and telecontrol signal sources) is effected by means of distributers comprising cathode ray tubes 31, 32 which are scanned in a television-type raster and have their screens viewed by assemblies of photo-electric cells 41, 42. Distributer 31, 41 serves for transmission; distributer 32, 42 serves for reception. The distant station is identical. Distributer 31, 41 is scanned under the control of line and frame photo-electric impulse generator 33- 37, and each photo-electric cell is connected with one station A.B etc. by modulating means whereby the pulses generated in the cells may be modulated in amplitude. The distributer thus produces in repeating cycles groups of pulses (25 as illustrated) which are individually modulated by the source signals. The pulses are combined with line and frame synchronizing signals in mixer 49 and transmitted to the distant station by channel L1. Incoming signals (produced in an identical manner to that described above at the distant station) appear over channel L2 and are applied to modulate cathode-ray tube 32 which is scanned in synchronism with the originating distributer at the distant station by the synchronizing pulses which are separated in a circuit 42. The cathode-ray tube thus displays a pattern of light spots, which vary in intensity in accordance with the signal sources they represent, and causes the production of corresponding signals in photo-electric cells 42 which are connected to the receiving terminals of stations A, B, etc. In a modification, Fig. 4 (not shown), the transmitting distributer is replaced by an assembly of electric discharge lamps which are individually modulated in intensity by the signals from the respective stations, the assembly being viewed by a television camera which is scanned in an identical manner to cathode-ray tube 31. The lim and frams synchronizing signals may be generated by including reflecting strips along the vertical and horizontal edges of the assembly of lamps. Channels L1, L2 may be radio, line or coherent light beam channels.
Patent GB-1529222-A (GB)
Title: Carrier bags
IPC: B29C48/10
Filed: 1976-04-13
Abstract: 1529222 Cooling extruded tubes COLOROLL Ltd 13 April 1976 [14 Jan 1975 28 Jan 1975] 48648/77 and 48649/77 Divided out of 1529221 Heading B5A A machine for producing folded tubular stock for the manufacture of carrier bags (see Divisior B8) comprises an annular extrusion channel 8, Fig. 2, adapted to extrude a tube 15, Fig. 1 of thermoplastics film material, widened regions 11, 12, Fig. 2, of the channel 8 at diametrically opposed locations, means, e.g. a nozzle 14 for inflating the tube to a predetermined diameter first guide means, e.g. arcuate members 19, 2( for receiving and constraining the tube 15 into the predetermined diameter, cooling means 21 for directing cooling gas on to the thicker parts of the tube within the first guide means, and second guide means, 3 e.g. rollers 23, for folding the tube flat on to a plane extending at right angles to a plane joining the mid-points of the thicker parts. Blades 25 may form gussets in the flattened tube which is stored in a bin 30 by means of an oscillating arm 29.
Patent GB-1119266-A (GB)
Title: Improvements in or relating to devices for producing uniform dispersions
IPC: B01F15/00
Filed: 1965-11-16
Abstract: 1,119,266. Mixing apparatus. E. K. TODTENHAUPT. 16 Nov., 1965 [29 Dec., 1964], No. 48672/65. Heading B1C. Apparatus for dispersing solids, liquids and gases in a liquid comprises an agitator rotating with a vertical shaflt 4 and having blades in a plurality of planes 5, 6, 7, 8, Fig. 1, the blades in any one plane being alternately of opposite pitch; as shown there are four blades in each plane and each is also of opposite pitch to that above and/or below. In the embodiment of Fig. 4 the blades are longitudinally divided, 'the inner and outer sections being of opposite pitch, and there are two blades in each plane (see also Figs. 5 or 6, not shown).
Patent GB-1536597-A (GB)
Title: Dispensing fluid into individual containers
IPC: B01L99/00
Filed: 1977-11-08
Abstract: 1536597 Liquid dispensing apparatus UNIVERSAL SCIENTIFIC Ltd 8 Nov 1977 [22 May 1977] 48677/76 Heading B8N An apparatus for dispensing fluid into individual containers comprises a dispensing head 13 attached to an endless conveyer 1 which moves the head in a predetermined path above an array of sample receiving containers. The conveyer is driven by a motor 4 via a disc 6 with spaced openings 14 which are detected to stop the conveyer for a predetermined time over each container. The conveyer may be a toothed belt or a chain. The electronic control circuit, Fig. 4 (not shown) includes a freerunning electronic timer (9).
Patent GB-1490727-A (GB)
Title: Fastening devices
IPC: F16B35/06
Filed: 1974-11-11
Abstract: 1490727 Threaded fasteners; structural joints ILLINOIS TOOL WORKS Inc 11 Nov 1974 [14 Nov 1973] 48754/74 Headings F2H and F2M A fastening device for attachment to a protuberance such as a rib 42 on a support structure includes a body 20 having a recess to receive the protuberance, a surface 30 of the recess carrying an adhesive layer 32 for bonding the device to the protuberance, and a threaded fastener member 12, such as a bolt (Figs. 1, 10 and 16) or nut (Fig. 15) whose major thread diameter is not less than the spacing of opposing walls of the, or a portion of the, recess, the axis of the thread of member 12 being generally parallel to the adhesive-carrying surface 30 such that tensile and compressive forces applied to the fastening device through the fastener member load the adhesive bond in shear. Where the fastener member is formed as a separate member from the body and then preassembled, means may be provided to prevent the fastener member rotating or moving axially relative to the body after preassembly. As shown in Figs. 1 and 10 the body 10 may be a channel section composed of two leg portions 28 to fit around the rib 42, the inner leg surfaces 30 bearing a heat-activatable adhesive layer 32, and a light portion 24a through which the fastener member head 14 extends. Barbs 66 may be provided on the leg portions 28d to assist their attachment to a rib 42. For attachment to two ribs 42 meeting at right angles, a device may be used as in Fig. 16 having two pairs of legs 28h supporting a bearing plate 76 receiving the fastener member 12h. Instead of being formed separately, the fastener member may, as in Fig. 15, be formed integrally with the body, the fastener member 12g in this case being a planar portion, struck out of one of the leg portions 28g, the portion having an extruded threaded aperture 74 serving as a nut.
Patent GB-1405948-A (GB)
Title: Process for regenerating blixing solution in colour photographic  processing
IPC: G03C7/42
Filed: 1972-10-23
Abstract: 1405948 Regenerating photographic bleach fix solutions FUJI PHOTO FILM CO Ltd 23 Oct 1972 [22 Oct 1971] 48826/72 Heading G2C A photographic bleach-fix solution is regenerated by adding make-up components to the bleachfix solution to make up for those used during bleach-fixing, without removing any silver salt from the solution, the amount of silver salt present in the bleach-fix solution being kept below 10 g/litre of bleach-fix solution. The bleaching agent and fixing agent in the bleach-fix solution may each be present at 5-200 g/litre of bleach-fix solution and components may be added to maintain these concentrations during bleach-fixing. Prior to bleach-fixing, exposed and developed photographic silver halide material may be subjected to pre-fixing to remove a substantial portion of soluble silver salt from the material to keep the amount of silver salt in the bleach-fix solution down to the required level. Alternatively, the amount of coated silver in the photographic material before development may be kept below 2 g/m<SP>2</SP>. Regenerated solution may be returned to the bleach-fix bath at 200-1250 ml/m<SP>2</SP> photographic material.
Patent GB-1486926-A (GB)
Title: Magnetoresistive movement detecting apparatus
IPC: H01L43/08
Filed: 1974-11-14
Abstract: 1486926 Magneto-resistive movement detectors SONY CORP 14 Nov 1974 [17 Nov 1973 (2)] 49300/74 Heading G1N(A) An arrangement for detecting movement of a body 10, e.g. a gramophone turn-table, Fig. 5 (not shown) comprises an alternatively-poled array of magnets 11 mounted on the body and a magnetoresistive element 1 comprising two sets of seriesconnected parallel ferromagnetic film-strips on an insulating substrate, the two sets being spaced apart a distance n#/4 where n = 1,2,3 &c., the strips of the two sets being perpendicular when n is even, see Fig. 9, and parallel when n is odd, see Fig. 10. In the preferred embodiments the magnetic field H is sufficient to saturate the strips A, A', B which are of an alloy containing 80 wt. per cent nickel, and 20 wt. per cent cobalt.
Patent GB-1362053-A (GB)
Title: Collapsible supports
IPC: F16M11/22
Filed: 1972-08-04
Abstract: 1362053 Tripod stands SAMUEL JACKSON & SONS Ltd 4 Aug 1972 [27 Oct 1971] 50033/71 Heading A4H A collapsible support comprises a stem 1 formed of four lengths of angle iron 2 connected by bolts 3 to form four slots, four legs 4 pivotally connected to the stem and pivotable between a first position in which they are housed in the slots Fig.1, (not shown) and a second position substantially at right angles to the stem, as shown, and a locking ring 5 in the form of a square 8 superimposed on a circle 9 and which is slideable along the stem in one angular position (dotted lines), Fig. 4, (not shown) and is rotatable through 45 degrees to another angular position (full lines), Fig. 4, (not shown) in which the square sides enter slots 10 in the irons 2 and the circle 9 abuts the legs 4 to lock them in the second position. The ring 5 holds the legs 4 in their first position by engaging over end portions thereof, springs 15 forcing the irons 2 apart to hold the ring in position, sliding of the ring being prevented by projections 6 and 7 on the legs 4 and irons 2. The legs and stem have attachment points 11, 12 for a sign, and the stem may include a flashing lamp.
Patent GB-1505390-A (GB)
Title: Cooling of metal bodies
IPC: B21B43/00
Filed: 1976-12-02
Abstract: 1505390 Cooling metal slabs DAVYLOEWY Ltd 2 Dec 1976 [8 Dec 1975] 50237/75 Heading B3M Metal slabs are cut from a hot billet, and while still hot are traversed by a conveyer through a zone where they are force air-cooled, and the heated air is brought into contact with an air-to-liquid heat exchanger. As described, the hot slabs are fed to a device which forms stacks of slabs fed to the conveyer. From the conveyer the slabs, cooled from 950‹ to 350‹ C., are placed in a water tank where they cool to 60‹ C. The heat recovered from the exchanger may be used to heat buildings.
Patent GB-1321178-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M23/12
Filed: 1971-10-29
Abstract: 1321178 Spray carburettors DAIMLER - BENZ AG 29 Oct 1971 [ 5 Nov 1970] 50390/71 Heading F1B Carburettor has a radially-aligned fuel or fuelair mixture outlet 18 which opens into the bore of a secondary Venturi 10 concentrically disposed in the choke tube, and a radial air duct 25 which opens into the bore of the secondary Venturi at a point between the outlet 18 and the downstream end of the secondary Venturi. The air issuing from the duct 25 impinges on the mixture and finely atomizes the fuel so that the engine runs steadily on a mixture which has been made leaner than usual in order to reduce pollutants in the exhaust gases.
Patent GB-1057020-A (GB)
Title: Recovery of hydrogen from a gas mixture
Inventor: CHARLESWORTH PAUL LANE
IPC: C01C3/02
Filed: 1964-12-17
Abstract: 1,057,020. Cold separation of gas mixtures. PETROCARBON DEVELOPMENTS Ltd. Dec. 9, 1965 [Dec. 17, 1964], No. 51365/64. Heading F4P. Hydrogen is separated from dried compressed ammonia synthesis purge gas by passing it downwardly through a first heat exchanger (4) to partly liquefy the feed mixture, separating the liquid and gas so formed in a vessel (5), passing the gaseous partly purified hydrogen upwardly through a second heat exchanger (6) thus producing reflux which is collected in a phase separating vessel (7), passing the resulting pure hydrogen leaving the head of exchanger (6) downwardly therethrough in indirect heat exchange with the upwardly flowing partly purified hydrogen, passing at least part of the so-warmed pure hydrogen leaving the lower end of heat exchanger (6) through a line (21), an expansion turbine (8), both heat exchangers (6), (4) in countercurrent flow and in indirect heat exchange with inflowing gas, passing any unexpanded pure hydrogen leaving the warm-lower end of exchanger (6) through an expansion valve (26) and adding it to the turbine-expanded hydrogen passing upwardly through the first exchanger (4) from which product hydrogen is discharged through a line (27) and finally expanding at valves (38), (29) separated liquid components withdrawn from vessels (5), (7) and returning them through the heat exchanger in which they were formed and through any preceding heat exchanger in countercurrent flow and indirect heat exchange with inflowing gas mixture before being discharged through a line (41).
Patent GB-1187067-A (GB)
Title: Improvements in or relating to Wash Basins or Other Containers and Water Supply Devices Therefor.
Inventor: POINTON ERIC
IPC: E03C1/04
Filed: 1967-06-23
Abstract: 1,187,067. Water-supply spout. IDEALSTANDARD Ltd. 31 May, 1968 [23 June, 1967; 13 Nov., 1967], Nos. 29000/67 and 51640/67. Heading A4N. [Also in Division B2] A novel water-supply spout 4 for a wash-basin 1 or other container, comprises an inlet 7 for connection to water supply services through an inlet chamber 8 and an outlet 13 fitted with an ascendant spray or jet nozzle 16, for projecting water from the rear of a wash-basin or other container in an upward and forward direction to provide an arcuate pattern of flow into the wash-basin or container. The outlet nozzle 16 may be fitted with a regulator 21, which has an externally screw-threaded rod 22 which engages the internally screwthreaded sleeve 20, and a substantially frustro-conical head 23 which, by rotation of the rod 22, can be moved axially away from or towards the oulet port 15, in order to adjust the desired throw of the spray or jet of water to be projected from the outlet nozzle.