baber/WOPTO huggingface dataset:
Patent GB-1594977-A (GB)
Title: Method of and apparatus for solidifying molten metal or metal alloy
IPC: B22D27/08
Filed: 1977-12-23
Abstract: The method envisages that a melt consisting of metals and metal alloys be subjected to a macrosonic field, at least at the beginning of the solidification process. This produces a pressure amplitude in the molten material and, as a result, as large as possible a number of crystallisation nuclei is produced. The intention is, by influencing the grain growth, to obtain a fine-grained structure in the solidified melt. The device for carrying out the method contains an ultrasonic system comprising an ultrasound generator (converter) 6 and an oscillatory transmission part in the form of a horn (1), which is connected to the ultrasound generator (6) via an intermediate piece (5), the length of which is matched to the wavelength of the ultrasound. The horn (1) forms an oscillatory bottom to the casting mould, in which it is mounted to allow displacement in the plane of a node of vibration. <IMAGE>
Patent GB-1449196-A (GB)
Title: Radio interferometer sector-definition
IPC: G01S3/10
Filed: 1973-11-21
Abstract: 1449196 Radio direction finding MULLARD Ltd 21 Nov 1973 53983/73 Heading H4D In an interferometer two signals from a vertical aerial array are derived, one signal having an amplitude proportional to a function of the ground reflection coefficient multiplied by a function of the angle of incidence of an incoming radio wave, and the other signal having an amplitude proportional to a different function of the angle of incidence but the same function of ground reflection coefficient, one signal being divided by the other to produce a signal independent of the ground reflection coefficient. In Fig. 7 three vertical aerial elements a, b, c feed receivers R fed by a local oscillator LO. I.F. signals from the receivers are passed to a summing stage SA. Each of the I.F. signals A, B, C comprise both direct and ground reflected signals and the sum signal from stage SA is passed to logorithmic amplifier LA. The signal from the central element b is passed to a second logorithmic amplifier LA. The logs of the moduli of the sum signal and signal from B are subtracted from each other in stage SS to give a signal indicative of the divided moduli. It can be shown that A+B+C=1+2 cos # d.f 1 (p). where #d = 2#d sin #/#; d=aerial spring; # = wavelength of the incoming wave; #= incoming wave incident angle; and f 1 (p) is a function of the ground reflection coefficient and that B= f 1 (p). Therefore A+B+C/B is a function solely of angle. Other signal combinations are possible.. In the embodiment of Fig. 9 (not shown), A+C=2B divided by 2B is used. The signal from stage SS can be used to indicate whether an aircraft is within a predetermined range of elevation angles, the boundary of the range being determined by a threshold value of the signal.
Patent GB-1483746-A (GB)
Title: Processing of wafers
IPC: H01L21/306
Filed: 1974-12-18
Abstract: 1483746 Etching MONSANTO CO 18 Dec 1974 [19 Dec 1973] 54707/74 Heading B6J Circular wafers such as silicon are etched with a mixture of nitric acid, hydrofluoric acid and acetic acid in an apparatus comprising an etching chamber 21, Fig. 1 a return chamber 41 and a heat-exchange chamber 35, through which the etchant is circulated by a pump. A plurality of wafers are supported vertically side-by-side in grooves 71, Fig. 2, spaced along two rods 69 mounted in a removable support rack 23, the rods being rotated by an electric motor in a detachable drive unit. Air from a tube 43 is blown through a channel 47 and releases volatile components in the etching solution to escape through a duct 53. The etchant temperature is maintained by coolers 37 and heaters 55 controlled by a sensor 39.
Patent GB-1446848-A (GB)
Title: Sputtered metal oxide coatings articles comprising transparent electrically-conductive coatings on non-conducting substrates
IPC: B64C1/14
Filed: 1972-11-29
Abstract: 1446848 Sputtering apparatus TRIPLEX SAFETY GLASS CO Ltd 28 Nov 1973 [29 Nov 1972] 55156/72 Heading C7F In a process for reactively sputtering a metal oxide film using parallel spaced, hollow strips 271  of e.g. In-Sn alloy which are moved relatively to the substrate 31 by cables 48, as described in Specification 1365492, the thickness of the film over different parts of the substrate is controlled by varying the effective width of the cathodes, either by masks 26, Fig. 4, which may also be in the form of adjustable sections Fig. 5 (not shown) or by making each strip of different width from one . end to the other. The substrate and cathodes may be correspondingly curved. The substrate may be heated (240 to 400‹C) by a radiant heater 54, and the temperature may be controlled automatically. The spaces between the strip cathodes allows free circulation of the sputtering gas, e.g. oxygen-argon mixture.
Patent GB-1414736-A (GB)
Title: Tiltable door
IPC: E05D15/44
Filed: 1973-11-28
Abstract: 1414736 Spring balanced up-and-over door L LINDPOINTNER 28 Nov 1973 [12 Dec 1972] 55193/73 Heading E1J An up-and-over door has guide pins 2 which slide in slots 3 in the side members 4 of the door frame and links 9 attached at 7 and 8. The guide pins are supported by the helical tension springs 10 which are within the hollow side members 4, pass out of these at 14, round the deflecting rollers 11 and are anchored to the members 4 through the turnbuckles 13. The tension in the springs is adjusted by the positions of the anchorages. The springs may be protected by flexible tubes 15.
Patent GB-1191919-A (GB)
Title: Stabilisation Processing of Light-Sensitive Elements
IPC: G03C5/39
Filed: 1967-12-08
Abstract: 1,191,919. Photographic processes. FUJI SHASHIN FILM K.K. Dec. 8, 1967 [Dec. 10, 1966] No. 56019/67. Heading G2C. A process for stabilizing images which have been produced by imagewise exposure and heatdevelopment of a light sensitive material containing (a) a light-insensitive and reducible silver salt (b) either a silver halide or an inorganic halide capable of forming a silver halide by reaction with the silver salt (a), (c) a reducing agent and (d) an organic acid and/or a salt thereof; which process comprises treating the image with a solution containing a heterocyclic compound containing a mercapto or thio group. The light sensitive materials are preferably those disclosed in Specifications 1,161,777 and 1,163,187. Heterocyclic compounds specified are imidazoles, benzimidazoles, thiazoles, benzthiazoles, oxazoles, benzoxazoles, triazoles, thiadiazoles, oxadiazoles, tetrazoles, pyridines, pyrimidines, pyrazines, pyridozines and triazines.
Patent GB-1204820-A (GB)
Title: Vacuum bottles having improved bottom closures
IPC: A47J41/02
Filed: 1968-11-27
Abstract: 1,204,820. Vacuum insulated vessels. ALADDIN INDUSTRIES Inc. 27 Nov., 1968 [26 Dec., 1967], No. 56264/68. Heading F4U. The protective casing of a vacuum bottle includes a bottom closure which engages the outside of the remainder of the casing by means of screw-threads or bayonet fastenings, the closure and the remainder of the casing having frusto-conical surfaces which co-operate to prevent the sides of the closure moving outwards relative to the casing as a result of overtightening of the closure. As illustrated in Fig. 2. the closure 8 has an outwardly facing frustoconical surface 39 which engages in inwardly facing frusto-conical surface 38 on a lip 40 of the casing. The surface 39 makes a smaller angle with the axis of the bottle than does the surface 38. As illustrated in Fig. 6, the closure has a triangular section protrusion 82 which engages a triangular section groove 83 on the casing. The protrusion has a smaller included angle than the groove. The closure supports the lower end of the vacuum filler through the intermediary of a resilient sleeve or cup, Figs. 1 and 4 (not shown). The casing may be of plastics material, and the filler may have an inner plastics liner which is spin welded at its upper end to the casing, Figs. 4, 7 and 8 (not shown).
Patent GB-1330658-A (GB)
Title: Submerged combustion heat generator
IPC: F22B1/26
Filed: 1970-11-26
Abstract: 1330658 Submerged combustion apparatus, liquid heater GAZ DE FRANCE 26 Nov 1970 [28 Nov 1969] 56293/70 Headings F4A and F4K In a submerged combustion apparatus operating at a pressure above atmospheric pressure and comprising a burner 1 immersed in a water-filled primary bath 2, combustion products leaving the bath through a pipe 4 enter a heat recuperator-condenser 5, including a secondary bath 18, from whence non-condensible products are ejected through a valve 6. Fluid to be heated, e.g. water, is first passed through a first heat exchanger 8 immersed in the secondary bath 18 and thereafter, via a line 9, to a second heat exchanger 10 immersed in the primary bath 2. Heated fluid, which may be in the form of hot water or steam, leaves at 11. Harmful products of combustion such as SO 2  and CO 2 , which are dissolved in the primary bath 2, can be continuously recovered in a closed recuperator circuit 12, 13. Part of the condensed water in the bath 18 can be returned to the main bath 2 through a line 15 and pump 14. Devices 16 and 17 enable the water levels in the baths to be kept constant. An alternative embodiment (Fig. 3, not shown) utilizes a depending vertical submerged burner having a cylindrical combustion chamber (12<SP>1</SP>) provided with an internal heat exchanger (16<SP>1</SP>) connected to the heat exchanger (19<SP>1</SP>) disposed in the main bath (13<SP>1</SP>); the fuel mixture is at least partly burned before the submerged combustion. An expansion turbine may be disposed in the combustion products exhaust circuit, its energy being used to compress combustion agent and/or fuel gas fed to the burner. A plurality of serially disposed condenser-heat recuperators can be utilized.
Patent GB-1433380-A (GB)
Title: Catalytic system and process for oligomerizing olefines
IPC: C07C2/34
Filed: 1973-12-05
Abstract: 1433380 Oligomerizing olefins LABOFINA SA 5 Dec 1973 [8 March 1973] 56400/73 Heading C5E [Also in Division B1] Olefines are oligomerized by contact with a catalyst comprising a compound AlR n X 3-n  wherein R is a C 2-18  alkyl radical, X is halogen and n=1, 2 or 3, a nickel organic complex and a promoter R<SP>1</SP>X wherein R<SP>1</SP> is a C 3-12  branched alkyl radical, optionally substituted by an aryl or cycloalkyl radical, the molar ratio of promoter to aluminium compound being 0À05-20 and of aluminium compound to nickel compound being greater than 1. The reaction may be performed at - 40‹ to + 120‹ C. and 1-60 atm. and in the presence of an inert solvent which is a hydrocarbon or a halogenated aromatic hydrocarbon. Examples describe the dimerization of propylene to hexenes, of ethylene to mainly butenes plus hexenes, and the co-dimerization of ethylene and propylene to give n-pentenes and 2-methylbutene.
Patent GB-1387400-A (GB)
Title: Temperature control of webs of material
IPC: D06B19/00
Filed: 1970-11-30
Abstract: 1387400 Web treatment apparatus BAKELITE XYLONITE Ltd 24 Feb 1972 [30 Nov 1970] 56713/70 Heading D1L [Also in Division F4] Apparatus for treating webs with gases under controlled temperature conditions comprises an open-sided chamber 1 which is closed during operation by a continuous web 2 passing across the open face, a tangential fan 3 mounted in the chamber with its longitudinal axis transverse to the direction of web travel, a septum plate 4 extending longitudinally in the chamber 1, and gas heating or cooling devices 5 mounted above the septum plate, the arrangement being such that gas circulated in the chamber by the fan 3 passes in the direction indicated parallel to the surface of the web and in opposite directions on opposite sides of the septum plate 4. Infra-red heaters 6 may be mounted below the plate 4 to-heat the web directly and flexible flap-valves 7 and 8 may be provided to prevent escape of gas into the surrounding atmosphere. Where longer treatment times are required two or more chambers may be located in series above the travelling web (Figs. 4-8, not shown) and similar chambers may be disposed below the web for simultaneous treatment of both sides thereof. The web may be passed unsupported past the chamber or may be disposed on a suitable conveyor means (e.g. belt or wire mesh screen) and the expression "continuous web" includes discrete sheets of material placed end to end and passed continuously through the apparatus. Gases other than air may be used with the apparatus where the web material is air sensitive or where chemical treatment is required. The apparatus is particularly suitable for use in curing or activating coatings on webs of for example paper, textiles, plastics or metal, for gelling and foaming plastisols and annealing and stretching webs.
Patent GB-1267912-A (GB)
Title: Improvements in or relating to dispensers for flowable materials and valves therefor
Inventor: HUNT HAROLD LANGLEY
IPC: F16N13/16
Filed: 1967-12-18
Abstract: 1,267,912. Reciprocating pumps. H. L. HUNT and H. W. BRISTOW. March 17, 1969 [Dec. 18, 1967], No.57299/67. Heading F1A. A dispenser, e.g. for grease or chutney, has a piston 12 reciprocable in a cylinder 13 carrying an apertured disc 6 which is rotatable with the cylinder relative to an apertured disc 7 to operate as a valve. As shown, discs 6 and 7 form an inlet valve, the pumped material being discharged through bucket valve 26 and hollow piston rod 10. Piston 12 is reciprocated by a pneumatically actuated piston 11. The pumping and actuating cylinders 13 and 14 are connected to members 4 and 5, the whole assembly being oscillated to operate valve 6, 7, e.g. by handle 22 or by a control means synchronized with the piston drive. The piston stroke may be adjusted by adjustable stops co-operating with abutment 24 on rod 10, or by an adjustable stop engaged by the top of the rod, Fig. 2 (not shown). The pump alternatively may be actuated by an external drive, e.g. an electric motor and cam. The pump may be mounted in a container of the material to be pumped and has a follower piston 32 for compacting the material incorporating a seal 34, lifting eye 35 and vent valve 36. The pump alternatively may have a solid piston, valve disc 7 being formed with inlet and outlet ports connected to respective inlet and outlet pipes, and valve disc 6 having an aperture for alternate alignment with the inlet and outlet ports Fig.4 (not shown). Disc 6 may extend across the full width of disc 7 and incorporate a sealing ring engaging casing 2, Fig. 5 (not shown). The discs may have frusto-conical apertures with their narrow ends at the contacting surfaces to act as cutting edges, Fig. 6 (not shown). The dispenser may be controlled to dispense predetermined quantities.
Patent GB-1434650-A (GB)
Title: Mechanism for introducing fine-grain reagents into steel melts
IPC: C21C7/072
Filed: 1973-12-12
Abstract: 1434650 Introducing granular material through blowing lances THYSSEN NIEDERRHEIN AG HUTTEN-UND WALZWERKE 12 Dec 1973 [27 Jan 1973] 57697/73 Heading F4B [Also in Division C7] Apparatus for injecting particulate reagents into steel in a stream of gas includes a gas source 1, and a reagent hopper 2 at the base of which is an aerator 5 (having perforated base 8) to which gas is supplied through inlet 3 and from which a suspension of reagent is discharged through pipe 7 to immersion lance 6. At the head of the lance is a mixing chamber 9 which is connected to the top of the hopper through a control valve 11 and which may also be directly connected to the gas source through a further control valve, whereby a constant pressure is maintained at the top of the lance. The mixing chamber comprises a cylindrical housing 12 through which the pipe 7 passes axially and into which by-pass line 10 enters tangentially, the pipe having a number of inlets 13. Preferably the hopper assembly and lance are rigidly mounted on a common frame 14.
Patent GB-1372459-A (GB)
Title: Method of producing metal patterns
IPC: H05K3/04
Filed: 1972-12-15
Abstract: 1372459 Coating with Pt PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Dec 1972 [18 Dec 1971] 58012/72 Heading C7F A Pt pattern is formed on a substrate of e.g. Si by first applying a negative pattern of a material which will react physically or chemically with Pt, applying a Pt layer, heating and then removing the reacted parts of the Pt, e.g. ultrasonically or by etching e.g. in aqua regia. The material may be an element of Groups III, IV, and V of the Mendeleef Table, e.g. Al, Ge, or Si. A layer of Ti or Cr may be applied before the Pt. The layers may be vapour deposited. The Pt may be electroplated with Au.
Patent GB-1207850-A (GB)
Title: Electrostatographic machine
IPC: G03G15/30
Filed: 1967-12-21
Abstract: 1,207,850. Electrostatographic apparatus. RANK XEROX Ltd. Dec. 21, 1967 [Dec. 30, 1966], No.58020/67. Heading G2H. In an electrostatographic machine a scanning slit (74), Fig. 2 (not shown) in an assembly 20 is provided adjacent the surface of a xerographic drum 22, which drum is rotating clockwise (as seen) at a predetermined rate, the assembly 20 being driven anti-clockwise so as to scan the image of an original formed by an optical projection system 52 thus allowing a latent image to fall on the drum at a more rapid rate than the predetermined rate. When one image has been scanned the assembly 20 is moved back to its initial position while, if desired, the original is changed, and the drum catches up with the assembly 20, thus there is no gap between images of successive originals on the drum. Originals are stacked in a magazine 12 and the bottom one is fed by a picker knife (54), Fig. 3 (not shown), movement of which is in synchronism with the movement of the assembly 20, to and fro relative to the optical axis of the light projection system, to a magazine 14, or else retained for a second exposure. The rotating drum 22 is sensitized by a screened corona generating device 24, the latent electrostatic image is developed by a cascade developer in a housing 26 and transferred to a sheet material by a corona transfer device 28. The sheet is stripped off the drum by a pick-off mechanism 30 and is carried past a fuser 32 to be delivered from the machine. The drum is cleaned by a corona pre-cleaning device 36, rotating brushes 40 and light from a source 42.
Patent GB-1368789-A (GB)
Title: Apparatus for extracting liquid or moisture from textile fabrics
IPC: D06B15/04
Filed: 1971-12-16
Abstract: 1368789 Extracting liquid or moisture from textile fabrics SIR THOMAS & ARTHUR WARDLE Ltd 14 Dec 1972 [16 Dec 1971] 58404/71 Heading F4G Liquid or moisture is extracted from textile fabric by passing it round a drum A driven at the same speed as the fabric, the drum A having a perforated cylindrical wall b<SP>7</SP> through which air and moisture are sucked by way of a slot b communicating with a suction tube B (Fig. 1) or B1 (Fig. 4), the circumferential width of the slot b being adjustable. In Fig. 1, the slot b is formed in the tube B and its width is adjusted by movement of two walls extending radially of the tube B and provided with arcuate ends secured by bolt-and-slot connections to arcuate brackets on the tube B. A seal c is provided between the edges of the slot b and the wall b<SP>7</SP>. Flexible flaps c<SP>1</SP> carried by a bar c<SP>4</SP> restrict the effective width of the drum to that of the fabric. The wall b<SP>7</SP> is covered with a mesh fabric. Rings b<SP>2</SP> secure the wall b<SP>7</SP> to a perforated support disc a<SP>3</SP> and ring b<SP>6</SP>, and flanges b<SP>1</SP> are fixed to the rings b<SP>2</SP>. In Fig. 4, air is drawn through the slot b between two arcuate plates D and passes back through the drum wall b<SP>7</SP> to the suction tube B1 formed in a casing C<SP>4</SP> of the drum A. The arcuate plates D carry seals C<SP>1</SP> and C<SP>2</SP> and are adjustably carried by bolts d passing through portions d<SP>1</SP> of a clamp d<SP>2</SP> clamped on the stationary shaft d<SP>3</SP> of the drum A. Seals C<SP>3</SP> are provided on the casing C<SP>4</SP>.
Patent GB-1338411-A (GB)
Title: Apparatus for drying photographic layer supports
IPC: G03D15/02
Filed: 1970-12-10
Abstract: 1338411 Photographic processing apparatus AGFA-GEVAERT AG 10 Dec 1970 [10 Dec 1969] 58821/70 Heading G2A [Also in Division F4] Apparatus for drying photographic layer supports comprises a distribution chamber 8 of which one wall is formed by a perforated plate 7, the linear dimensions of the distributing chamber in a direction perpendicular to the plane of the perforated plate being small in comparison with the linear dimensions of the distributing chamber in directions parallel to the plane of the perforated plate, means 4, 5 for advancing the layer supports in a plane outside the distributing chamber and substantially parallel to the plane of the perforated plate, and means 11, 12 for supplying drying air to the interior of the distributing chamber, the arrangement being such that, in operation, drying air leaves the distributing chamber uniformly through the perforations in a direction normal to the plane of the perforated plate to contact the surfaces of the layer supports. Driven rollers 5 co-operate with idler rollers 4 to transport a layer support from an inlet 3 an outlet, the layer support already having passed through an automatic processing apparatus. The drying air is heated prior to entering the blowers 11, 12 as controlled by a thermometer probe 21, channels 9, 10 linking the blowers with the distributing chamber 8. End portions 4a, 5a of the rollers 4, 5 are of reduced diameter to facilitate the flow of air. The drying air circulates within the drying chamber 13 as shown by the arrows, and part of it is recirculated to the inlet of the blowers.
Patent GB-1439690-A (GB)
Title: Heat exchangers
IPC: F22B1/16
Filed: 1973-12-20
Abstract: 1439690 Tube supports in heat exchangers GUTEHOFFNUNGSHUTTE STERKRADE AG 20 Dec 1973 [21 Dec 1972] 59214/73 Headings F4A and F4S In a heat exchanger (e.g. a steam generator) in which a tube bundle 2 is contained within a casing 1 the tubes are supported by gratings 5 each of which comprises an annular frame 7 around the tubes, holders 10 mounted in the frame, and support bars 12 which are received within the holders. As shown the tube bundle is formed of U-tubes, but straight tubes can be used-the holders 10 are slotted sleeves which mount in bores 9 in the frame but slotted bars of round or any other cross-section can be used. A central brace 8 extends across each frame and is also provided with holders 10. Each grating can be prefabricated with only a portion of its final number of bars-the remaining bars being incorporated during the insertion of the tubes into the casing.
Patent GB-1295636-A (GB)
Title: Transducer mounting arrangement
Inventor: SWIFT ERIC OWEN
IPC: G01B7/14
Filed: 1968-12-13
Abstract: 1295636 Measuring displacement electrically DAVY & UNITED ENGINEERING CO Ltd 16 Jan 1970 [13 Dec 1968] 59329/68 Heading G1N A transducer comprising two relatively displaceable parts 8, 9 mounted in body 10 slidable in cylinder 7 of a piston 3 is first moved in cylinder 7 to an initial position so that the output from the transducer is linear when the part 9 is moved relative to part 8 when the piston 3 moves to abut part 9 against finger 6, and then body portion 8 is fixed relative to cylinder 7 for measuring displacement of the core part 9. The piston 3 is positioned between a rigid part of the housing of a rolling mill and one of the chocks supporting one end of a roll of the mill. To position the transducer in its operating position fluid is fed into annular chambers 15, 16 to move cylindrical body 10 up or down in the cylinder. When the signal from the transducer decreases to a predetermined level the fluid-flow to chambers 15, 16 is stopped and the body 10 is held in position relative to cylinder 7 by friction pad 19. Variations in dimensions 'A' indicative of the thickness of the material between the rolls vary the relative positions of parts 8, 9 of the transducer to provide an electrical signal. In a second embodiment the transducer is carried by a displaceable member, Fig. 2 (not shown) connected to a crosshead displaceable by a piston and cylinder device.