baber/WOPTO huggingface dataset:
Patent GB-1236965-A (GB)
Title: Removal of sulfur values from materials comprising same
IPC: C01B17/04
Filed: 1968-09-27
Abstract: 1,236,965. Alkaline earth metal carbonates; hydrogen sulphide. PULLMAN Inc. 27 Sept., 1968 [2 Oct., 1967], No. 46138/68. Heading C1A. Sulphate ions or sulphur dioxide are removed from materials containing them by contacting an aqueous medium having sulphate ions dissolved therein or a gas comprising SO 2  with an alkaline earth metal carbonate and/or alkaline earth metal oxide to precipitate the corresponding sulphate, passing the sulphate so formed to a reduction zone, and contacting it with a reductant in the presence of water vapour or steam so as to form an aqueous slurry of the corresponding alkaline earth metal sulphide which is contacted in a subsequent zone with H 2 S to produce a soluble hydrosulphide, the aqueous solution of which is passed to a further zone where it is contacted, preferably in countercurrent, with a stream of gaseous CO 2  to generate the alkaline earth metal carbonate and H 2 S, at least a portion of which H 2 S is passed to the hydrosulphide producing zone, the alkaline earth metal carbonate being recycled to the first contacting zone or being first decomposed to the oxide before such recycling. In Fig. 1, alkaline earth metal carbonate is injected via line 102 into contact with SO 2 -containing waste gas in fire-box 100. The resulting entrained solids comprising alkaline earth metal sulphate are separated in a cyclone 110 the waste gas passing to the stack via line 114 and the solids to reduction zone 120. A reductant which may be elemental or combined carbon, e.g. coal, hydrocarbon, natural gas, or carbon monoxide, or may be hydrogen or hydrogen sulphide, is passed into zone 120 via pipe 118 and part of this reductant may be burned with air admitted through line 122 to supply heat for the reduction. When the reductant is carbonaceous part of the off gases from zone 120 are passed via line 152 to serve as the CO 2  source in the carbonating zone 150. The reduced product passes from zone 120 to zone 130 where it-is reacted as a slurry with H 2 S from line 156. The resultant mixture is then passed to zone 140 where the soluble hydrosulphide is separated by filtration from unwanted solids and passed to zone 150 where it is contacted countercurrent with CO 2 . The carbonate slurry so produced is fed by line 172 to separator 170, the aqueous phase being recycled to zone 130 and the solid phase back to boiler fire-box 100. The H 2 S leaving zone 150 by pipe 154 is divided, part being led via 156 as feed to zone 130 and the other via pipe 158 to an oxidation zone 160 where either SO 2 , for sulphuric acid manufacture, or sulphur by means of the Claus reaction is manufactured.
Patent GB-1005008-A (GB)
Title: Crane
IPC: B66C23/26
Filed: 1963-01-04
Abstract: 1,005,008. Self-erecting tower cranes. KOEHRING CO. Jan. 4, 1963 [July 20, 1962], No. 46170/64. Divided out of 1,005,004. Heading B8B. The description is identical with that of Specification 1,005,004, but the claims are different. Specifications 1,005,003, 1,005,006 and 1,005,007 are referred to. U.S.A. Specification 2,988,040 also is referred to.
Patent GB-1027608-A (GB)
Title: Crystal rectifiers and mountings therefor
Inventor: WINDSOR WILFORD ALEXANDER
IPC: H01L23/31
Filed: 1963-11-22
Abstract: 1,027,608. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Nov. 22, 1963, No. 46211/63. Addition to 1,026,164. Heading H1K. A mounting device for a semi-conductor wafer comprises a pair of cylindrical wires secured end-to-end in a bead of refractory insulating material without mutual contact, and a flat on one of the wires, closely adjacent to the bead, on which the wafer may be mounted. As shown, the ends of two cylindrical wires 3, 4, one of which has a pair of flats stamped on it near the end, are inserted in a bore in a glass bead 1 which is then fused to secure the wires. The flat 5 is adjacent to the bead 1 and a semiconductor diode wafer 7 is mounted on it by alloying using an intermediate gold preform. The ends of a fine gold wire 8 are joined to the upper face of the wafer 7 and to wire 3 by thermocompression bonding. The whole device may be encapsulated using, for example, an epoxy resin filled with alumina which increases the thermal conductivity of the device. Both wires may be provided with a pair of flats adjacent to the bead, and up to four diodes may be mounted on the two wires and connected in a variety of circuits. The semiconductor may be silicon or germanium or a compound and may also be joined to the wire by soldering or brazing or using a metal cement. The wires may be of " Kovar " (Registered Trade Mark), of " CuNiFe," or of platinum.
Patent GB-1157568-A (GB)
Title: Improvements in or relating to High-Definition Telemetering Incorporating Lasers.
IPC: G01S17/14
Filed: 1967-10-11
Abstract: 1, 157, 568. Optical apparatus. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 11, 1967 [Oct. 28, 1966], No. 46397/67. Heading G2J. [Also in Division H4] In a pulsed distance-measuring apparatus (see Division H4) the lagging edge of a laser-emitted pulse is sharpened by concentrating the laser beam to ionize a small portion of a gas which may be free air or in a sealed chamber.
Patent GB-1493814-A (GB)
Title: Semiconductor devices
IPC: H01L21/768
Filed: 1974-10-28
Abstract: 1493814 Semiconductor devices GENERAL ELECTRIC CO 28 Oct 1974 [30 Oct 1973] 46514/74 Heading H1K [Also in Division B1] A conductive leadthrough 22 between opposite surfaces 14, 16 of a semiconductor body 12 is provided by thermomigrating a liquid mass comprising a solution of the semiconductor and a dopant metal from one (111), (110) or (100) surface, on which the metal is initially deposited, across a temperature gradient to the opposite surface, leaving behind a highly metal-doped recrystallized track 22 which forms a PN junction 24 with the body 12. For an N-type Si body 12 the metal may be Al. Ge, SiC and GeAs are also mentioned. As shown the body 12 may carry on its opposed surfaces semiconductor device bodies 18, 20 interconnected via the leadthrough 22. In a modification recrystallized leadthroughs which extend linearly along the body surfaces as well as through the body 12 also provide isolation between devices mounted on the same surface.
Patent GB-1523548-A (GB)
Title: Method for the decoration of a transparent plastics material article by means of a laser beam
IPC: B23K26/00
Filed: 1976-11-09
Abstract: 1523548 Decorating with laser beam LASER TECHNIQUE SA 9 Nov 1976 46529/76 Heading B6G [Also in Division C3] A transparent plastics article having crystalline structure and internal stresses is decorated by successively focusing a pulsed laser beam on to different internal regions of the article. The article may be made of "Plexiglas" (Registered Trade Mark for a polymeric methacrylate ester) and the pulse energy and duration may be 1OJ/puls and 100-300 microseconds for a focal length of 100-200 mm. The decorations are rendered visible by the change in structure producing a different refractive index. The article may be used as a table lamp or paperweight; in an embodiment, decerations are formed along the axis of a cylinder. A reflective layer and/or a polariser may be associated with the article when used as part of a lamp.
Patent GB-1446756-A (GB)
Title: Portable hair moisturizer and dryer
IPC: A45D20/14
Filed: 1973-10-08
Abstract: 1446756 Hair dryers and moisturizers SCHICK Inc 8 Oct 1973 [24 Oct 1972]  46809/73 Heading A4V [Also in Division A5-6] A portable combination hair moisturizer and  dryer 20 comprises a base 28 and a head 22 pivotally secured to opposite ends of a mounting assembly 24 so that the dryer may be stored in a nested configuration, air drawn in through annular openings 40 in base 28 by an impeller within a housing 26 being directed over a heater 53 in a U-section housing of assembly 24 to a perforated distribution plenum 34 incorporated in head 22, and a steam generator 83 carried within a second U-section housing of assembly 24 producing steam which is directed through a conduit 132 to plenum 34. The steam generator 83 comprises a boiler 108 fed with water from a reservoir 104 via a flexible conduit 106, the boiler and reservoir being carried on mounting plates 156, 166 respectively, attached to a moulded element 86 retained in a recess 92 in the back wall 78 of assembly 24 by tongue and groove jointing. Reservoir 104 may be replenished with water from a vial 98 carried within the moulded element 86 by means of a detent 100 and a press-fit insert 96. Boiler 108 extends from below the bottom to above the top of reservoir 104 whenever the dryer is in its operative position with the mounting assembly 24 generally vertical. The various modes of operation of the moisturizerdryer may be controlled by a switch 126 having position representative of OFF, COOL, WARM, HOT and MIST. Trays 42 are provided on base 28 to receive pins, curlers or the like.
Patent GB-1487619-A (GB)
Title: Yarn transport mechanism for a ribbon loom
IPC: D03D35/00
Filed: 1974-10-29
Abstract: 1487619 Weft supply, shuttleless looms JAKOB MULLER FORSCHUNGS-UND FINANZ 29 Oct 1974 [27 Nov 1973] 46846/74 Heading DIE  Weft 2 from a package 1 is pressed against a friction coating 4 on an adjustable speed conveyor 6 by a spring loaded roller 10. For an intermittent supply the roller 10 or a shoe may be pressed against the conveyor by a cam.
Patent GB-1422815-A (GB)
Title: Sealed beam light unit
IPC: F21V19/00
Filed: 1973-10-08
Abstract: 1422815 Vehicle headlamps PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 8 Oct 1973 [8 Nov 1972] 46897/73 Heading F4R [Also in Division H1] A sealed beam headlamp unit comprises a glass reflector 1 hermetically sealed to a light distributing front disc and a double filament halogen cycle lamp 3 provided with a mounting plate 5, the lamp 3 being anchored to the reflector 1 by support rods 6, 7 which are hermetically sealed in the reflector bottom 2 and are rigidly connected to the mounting plate 5, e.g. by caps 8. The lead-in wires 11 of the lamp 3 are welded to the support rods. One of the rods may carry a shield 15, the end of the lamp 3 being supported by a ring 13 at the end of the rod or by a spring (Fig. 2, not shown) between the shield and the lamp.
Patent GB-1207355-A (GB)
Title: Improvements in cutting wheels for suction dredges
IPC: E02F3/92
Filed: 1967-10-17
Abstract: 1,207,355. Suction dredgers, bucket wheel excavators. WERF CONRAD EN STORK HIJSCH N.V. and C. BAARS. 17 Oct., 1967 [4 Nov., 1966], No. 47165/67. Heading E1F. A cutting wheel assembly for a suction dredger consists of an annular, box like body 1 that has a completely closed outer peripheral face except for orifices coinciding with the inward discharge openings of the radially protruding, forwardly opening, rearwardly tapering cutter boxes 2, 3 secured to the body. Also forming part of the assembly is a stationary suction funnel 4 that at one end can be rotatably mounted on and locked in a desired position to a bend 7 at the end of a ladder-supported suction pipe 8. The other end of the funnel opens to the inside of the outer peripheral face of the body over such an angular extent as to ensure that the cutter boxes are in communication with the funnel all the while the boxes are cutting loose material so that the cut material is urged through the boxes into the suction funnel by the entire water flow through the boxes. The side cutter edges 2 and central cutter edges 3 of the boxes are rearwardly inclined with respect to the direction of rotation of the wheel to the radii of the body passing through the feet of the cutting edges. Each side edge can be hollow and contain a water spray-producing conduit to help break up and flow of material through the boxes.
Patent GB-1171740-A (GB)
Title: A Food Cutter or Slicer
Inventor: SHAFREN JOSEPH
IPC: B26D1/25
Filed: 1968-10-04
Abstract: 1,171,740. A food cutter or slicer. J. SHAFREN. 4 Oct., 1968, No. 47180/68. Heading A4C. An article of kitchen ware comprises a food receiving board on which an article to be cut is to be placed; food cutting means securable to said board, and guide means comprising a slot extending from the board and defined between two spacedapart abutments upstanding from the and against which an article of food may rest during cutting, the arrangement being such that during cutting, the cutting means is secured to, or engages and extends from the board at a region of the board aligned with the guide slot. One embodiment has two kinds of food cutting means which are (1) a knife 7 having a blade 8 recessed at 9 in the upper edge of the blade, the recess 9 co-operating with a U-shaped staple 10 hammered into the board whereby the knife may be pivotably mounted (2) a cord 15 e.g. of wire or string which is attached at one end to a hook 16 in the base of the board 1 below the slot 11 and passes upwardly through a hole 17, the free end of the cord 15 being provided with a handle. Extending across the board from the edge adjacent to the staple 10 to the edge lying between the abutments 4 is a slot 11 which serves to accommodate the cutting edge of the blade 8 of the knife 7 towards the end of the cutting movement.
Patent GB-1197607-A (GB)
Title: Improvements in or relating to Pillows and like Articles.
Inventor: MILTON WILLIAM FRANK
IPC: B68G1/00
Filed: 1967-10-17
Abstract: 1,197,607. Mattresses &c. PRICE BROS. & CO. Ltd. 7 Oct., 1968 [17 Oct., 1967], No. 47289/67. Heading A4M. A pillow, cushion, mattress or the like has a filling comprising crumbs of polyurethane foam admixed with feathers and/ or down. The crumbs are of a size to pass through a ¢-inch mesh screen.
Patent GB-1110357-A (GB)
Title: A novel cytosine derivative and a process for the manufacture thereof
IPC: C07D239/46
Filed: 1966-10-21
Abstract: The novel N-(p-chloro-benzoyl)-5-fluoro-cytosine is prepared by acylation of 5-fluoro-cytosine.  It is stated to be an antifungal agent and it may be made up into pharmaceutical compositions.
Patent GB-1510480-A (GB)
Title: Electrical switch
IPC: H01H1/24
Filed: 1976-11-08
Abstract: 1510480 Fluid pressure switch AMP Inc 8 Nov 1976 [18 Nov 1975] 47366/75 Heading H1N An electrical switch comprises a plunger 12, Fig. 4, carrying a bridging contact 14 for engagement with fixed contacts 6 and being integrally connected to a supporting bush 11 through resilient tie members 13, Fig. 5, which permit axial movements of the plunger 12 and provide a resilient return. The members 13 may be curved longitudinally and radially and may be helical. In the embodiment applied to a fluid pressure switch the diaphragm 9 engages the plunger 12 and is clamped in the body 1 by the bush 11 under the action of a threaded wall member 2 carrying the fixed contacts 6 and having a central bore 18 which receives and guides the forward end 17 of the plunger 12.
Patent GB-1269599-A (GB)
Title: Improvements in or relating to sea anchors
Inventor: JOPPA ROBERT G
IPC: B63B21/29
Filed: 1970-10-06
Abstract: 1,269,599. Sea anchors; mooring ships and buoys. HONEYWELL Inc. 6 Oct., 1970, No. 47408/70. Headings B7A and B7S. A sea anchor comprises a torpedo-shaped body 10 provided with wings 12, 14, a flared tail 16 and fins 20, 22. The assembly shown in Figs. 5 and 8 comprises three such anchors 122, each of which is shaped to follow a glide path at a predetermined angle when sinking under its own weight in a body of water 112. Buoy 110 holds the anchors in such predetermined attitudes relative to one another that when they are released simultaneously they deploy themselves along divergent glide paths to widely separated stations at the bottom of the body of water, each anchor trailing behind it a respective anchor line 124 that leads back to the buoy. In the embodiment shown, elongated guides 116, 118, 120 extending from the underside of the buoy carry the anchors which are directed along their respective glide paths by springs.
Patent GB-1521999-A (GB)
Title: Sutures with reduced diameter at suture tip
IPC: A61B19/00
Filed: 1975-11-19
Abstract: 1521999 Surgical nedle and suture ETHICON INC 19 Nov 1975 [20 Nov 1974] 47627/75 Heading D1G  A needle-suture combination comprises a needle 11 having a sharp end and a blunt end 13, and a suture 14 having one end positioned in a recess 12 in the blunt end of the needle and being retained in position in the recess by swaging of portion 17 of the needle, said suture end in recess 12 and a segment 16 of the suture beyond the recess being reduced in cross-sectional area and in the amount of cross-sectional suture material relative to the cross-sectional area and the amount of cross-sectional suture material in the remainder of the suture length. The suture may be a monofilament or a multifilament which has fewer fibres at the reduced area end thereof than in the remainder of the suture, said suture end being unified by resin impregnation. The crosssectional area in sq. ins. at said reduced portion is equivalent to KP/DT in which P is the desired rupture load, ranging from 0.2 to 1.6 pounds, D is the suture density, T is the tensile strength of the suture material in Ibs per sq. in., and K is a constant for the suture material. The suture may be braided having a suture density of between 0.70 and 0.95. Alternatively the suture may comprise catgut, D being unity and K being about 1.3, or silk, cotton, linen, nylon, polypropylene, polyethylene terephthalate or a homopolymer or a copolymer of glycolide or lactide. The suture is rupturable adjacent its junction with the needle by a straight pull at a force between 3 and 26 ounces. The recess may be a drilled hole or formed by closing over the walls of an open channel. The suture diameter beyond the reduced cross-sectional area portion, is 85 to 100 per cent of the unswaged needle diameter.
Patent GB-1515116-A (GB)
Title: Methods and apparatus for optimising the response of transducers
IPC: F23N5/24
Filed: 1974-11-05
Abstract: 1515116 Optimization of sensor response GRAVINER LTD 7 Oct 1975 [5 Nov 1974] 47755/74 Heading G4N [Also in Division G1] The response of a radiation detecting flame sensor is optimized by energizing the sensor at each instant of repeated sequences of successive time instants and holding the sensor energized for not more than a respective activation period following each said instant, consecutive activation periods being mutually separated by recuperation time periods, sensing whether the sensor responds during each of the activation periods and producing a warning signal only when the sensor responds during all of the activation periods of at least one sequence. The lengths and number of activation periods are selected such that the probability of a warning output being produced in response to radiation of a predetermined wavelength emitted by the flame is increased relative to that of a warning in response to background radiation. Thus, in optimization of the response of a cold cathode gas discharge device to ultra-violet radiation from a flame, the effect of solar or cosmic radiation may be minimized. The method depends on the difference in the statistical time lag t s , i.e. the time delay before avalanche occurs after a voltage 4V has been applied over and above the striking voltage V for the tube, for ultra-violet and for solar radiation. In one embodiment of a tube operating circuit, Fig. 4, the tube 10 is energized in sequences of four pulses, from an oscillator 22 via bistable 26, NAND gate 34 and transistor 14. If the tube fires during the first energization period, at the end of this period, the first stage of shift register 28 is switched to 1. Firing of the tube is sensed by bistable 26 and the tube is immediately de-energized until the next energization period commences. If the tube fires during each of the four periods, all four stages of register 28 will be in the 1 state and AND gate 38 will allow delivery of an alarm signal. Gaps between each energization period, allow complete deionization of the tube. Counter 37 counts to four and resets for the next sequence of four pulses. A modification, Fig. 5 (not shown), arranges re-set of the register immediately after an energization period in which firing does not occur. The system may be arranged to function such that a warning is only produced when the sensor responds during each activation period of at least a predetermined plurality of consecutive sequences. The method is also applicable to solid state avalanche detectors of the PIN type. A theoretical discussion is provided.
Patent GB-1220732-A (GB)
Title: Deep fat pressure cooker
Inventor: WILSON ROBERT GARY
IPC: A47J27/08
Filed: 1968-01-22
Abstract: 1,220,732. Pressure cooker. R. G. WILSON. 22 Jan., 1968, No. 47767/70. Divided out of 1,220,731. Heading B1X. The subject matter is the same as disclosed in Specification 1,220,731, but the claims are directed towards a deep fat pressure cooker containing the vertically spaced heating means R 1 , R 2 , and R 3  which provide a more uniform heating than hitherto attainable and allow for a maximum accommodation of food in the cooker.
Patent GB-1099707-A (GB)
Title: Double trap siphonic water closet
Inventor: FLETCHER HAROLD
IPC: E03D1/26
Filed: 1965-11-11
Abstract: 1,099,707. Water-closet pans. JOHN STEVENTON & SONS Ltd. Nov. 8, 1966 [Nov. 11, 1965], No. 47923/65. Heading E1C. A double trap siphonic water closet has a vent passage 11 extending from a chamber 9 between the traps 4, 5 thereof from a position above the static water level in the upstream limb of trap 5 to a like position in the downstream limb thereof. The passage 11 is formed by one side wall of the trap 5 and part of the wall 10. It could be formed by a pipe interconnecting the two limbs of the trap 5.
Patent GB-1428579-A (GB)
Title: Walking beam apparatus
IPC: B65G25/02
Filed: 1974-11-07
Abstract: 1428579 Walking beam conveyers FORD MOTOR CO Ltd 7 Nov 1974 48157/74 Heading B8A Walking beam apparatus comprises moving beams 7 on opposite sides of a table 1, each beam being supported by arms 9. 11 on links 13, 15. Arm 9 is fixed to the beam and pivoted to link 13; and arm 11 is pivoted to both the beam and the link 15. Levers 17, 19 connect the links to the table and adjacent ends of the links are connected to a motor driven crank 21. In operation, loads 27 are lifted, horizontally moved and then lowered, rods 5 of the table serving to locate the loads.
Patent GB-1204721-A (GB)
Title: Improvements in or relating to nougat
IPC: A23G3/40
Filed: 1967-10-24
Abstract: 1,204,721. Treating nougat. M. TRABALZA and W. TRABALZA [trading as ALMACHIARA]. 24 Oct., 1967 [25 Oct., 1966], No. 48295/67. Heading A2B. A process for making white vanilla nougat less hygroscopic comprises mixing fragmented nougat with an edible oil or a substance containing an edible oil. The white vanilla nougat is made from almonds, honey, white of egg, sugar, vanilla and if desired other flavours, e.g. orange and lemon essences. The oil may be cocoa-butter; the oil-containing substance may be cocoa paste, chocolate, almond paste, hazel nut paste, coffee paste or substitute chocolate. The mixing may be done at elevated temperature. The doughy mixture obtained on mixing may be compressed into friable sticks which may be coated with chocolate, or further mixed with e.g. chocolate and formed into sticks.
Patent GB-1171253-A (GB)
Title: Improvements in or relating to Structural Assemblies
Inventor: WEBB CYRIL JAMES
IPC: B62D25/20
Filed: 1967-10-27
Abstract: 1,171,253. Vehicle floors. IMPERIAL ALUMINIUM CO. Ltd. 22 Oct., 1968 [27 Oct., 1967], No. 49054/67. Heading B7B] A vehicle floor is formed from extruded planks 40, 41 having overlapping portions 49, 44, the part 49 engaging under the lip 45 on the part 40 a liquid-tight joint being obtained by the compressing of a resilient insert 53.