baber/WOPTO huggingface dataset:
Patent GB-548204-A (GB)
Abstract: 548,204. Filtering cellulose derivative solutions. BRITISH CELANESE, Ltd. March 24, 1941, No. 3951. Convention date, March 23, 1940. [Class 2 (ii)] Solutions of cellulose organic derivatives are filtered more efficiently by incorporating, throughout the solution to be filtered, before passing it through the filtering medium, a small proportion of fibrous material which is insoluble in the solution. Ramie, jute, cotton, or wood-pulp cellulose, may be used as filter-aid. Cotton may be used in the form of linters. Preferably, the fibres are used in a well-divided and separated form. The fibrous material may be broken up by hand and air-blown to separate the fibres, or it may be screened. The amount of fibrous material may be 0.01-0.2 per cent of the weight of the solution. Solutions of cellulose acetate, propionate, butyrate, or other organic ester or mixed ester of cellulose, or ethyl, benzyl, hydroxy-alkyl, or other cellulose ether, may be treated. In an example, a cellulose acetate spinning solution is mixed with a small amount of cotton linters. The solution is filtered under pressure through a filter-press containing madapolam filtering cloth. The filtered solution is then passed through a second filter-press containing madapolam cloth, cotton batting, several thin sheets of wood-pulp cellulose, and another layer of madapolam cloth.
Patent GB-1196790-A (GB)
Title: Precombustion Chamber of Diesel Engine.
Inventor: YAMADA TADASHI
IPC: F02B19/08
Filed: 1967-12-04
Abstract: 1,196,790. Pre-combustion chambers. T. YAMAOKA. Dec.4, 1967, No.54983/67. Heading F1B. In a pre-combustion chamber having a hemispherical portion formed in a cylindrical member 5, a portion 6a with its centre line Y displaced from that of the member 5, and a shoulder 10 at the junction of the two portions, an auxiliary communicating passage 6c permits fuel collecting on the shoulder 10 to escape to the chamber portion 6a or to the main cylinder combustion space. A separate cylindrical member 7 may be situated between the portions 5, 6, and the outer end of the member 5 is formed with a resilient lip 8 against which the end of the fuel nozzle bears.
Patent GB-1428514-A (GB)
Title: Tanks
IPC: B65D88/46
Filed: 1973-11-27
Abstract: 1428514 Tank with floating roof VEREINIGTE OSTERREICHISCHE EISEN UND STAHLWERKEALPINE MONTAN AG 27 Nov 1973 [6 Dec 1972] 55022/73 Heading E1T In a tank of the floating roof type having a flexible sealing skirt 7 and a cover 6 with a sealing portion in contact with the tank wall, leaf springs 4 are secured to the floating roof 1 and each comprise upper and lower diverging legs 4, 5; the cover and the upper resilient sealing member 8a having peripheral line contact with the tank wall are secured to the free ends of the upper legs, and, the sealing skirt and a lower sealing member 8b are secured to the lower legs for peripheral line contact with the wall 3 of the tank. Each leaf spring is provided with a web 11 with an adjustable fixing screw 12 therein. The seals 8 are provided with longitudinal ribs and are secured by rivets which also secure sliding fingers in position, see also Figs. 2-5 (not shown).
Patent GB-1242605-A (GB)
Title: Hydraulic relay
Inventor: WADEFELT CARL IVAR
IPC: F15B11/10
Filed: 1968-11-20
Abstract: 1,242,605. Valves. C. I. WADEFELT. 20 Nov., 1968 [20 Nov., 1967], No. 55067/68. Heading F2V. [Also in Divisions G2-G3] Piston valves 4, 4 controlling the flow to and the exhaust from opposite ends of piston 11 are actuated by a double-acting armature 2 through springs 3 and respond via passages 6, 7 to the pressures on the opposite ends of piston 11.
Patent GB-1388178-A (GB)
Title: Benzylpyrimidine derivatives
IPC: A61P31/04
Filed: 1972-11-30
Abstract: 1388178 Potentiated sulphonamide and antibiotic F HOFFMANN-LA ROCHE & CO A G 30 Nov 1972 [1 Dec 1971] 55290/72 Heading A5B [Also in Division C2] Therapeutic antibacterial preparations comprise a sulphonamide (or salt thereof) or antibiotic and a potentiator of the general formula Take in Formula I (R=C 1-7  alkoxy) or salt thereof in association with a carrier.
Patent GB-1299590-A (GB)
Title: A plate blank for carrying devices for bottles and a carrying device for bottles
IPC: B65D85/30
Filed: 1970-11-24
Abstract: 1299590 Bottle carriers PACKALINE AG 24 Nov 1970 [1 Dec 1969 8 Sept 1970] 55874/70 Heading B8C A bottle carrier has a flat upper portion 101 with supporting tabs 104 around holes for the bottle necks, and a lower portion 102 of trough shape joined to the edges of the upper portion and having tabs 121-(124) around holes for the bottle necks. The portions are folded at the edges to form flanges 105, 110, and 106, 109. A case may contain several bottle carriers.
Patent GB-1364812-A (GB)
Title: Fishing rods
IPC: A01K87/00
Filed: 1972-12-05
Abstract: 1364812 Fishing rods P J WATTS 5 Dec 1972 56030/72 Heading A1A A fishing rod 1, 4 has a light 10 attached to the tip, powered by cells 32 carried in the rod handle. Electrical connections are made by wires 22, 23, 14, 15, within the rod, and if there is more than one section, means for electrical connection across the joints are provided by external brass sleeves 6, 7 and internal plug and socket 20, 17. As an alternative to loose wires, connectors may be moulded into or printed upon the rod walls. A switch 28 is included and one embodiment includes a second switch in series, operated by a lever moved by line tension.
Patent GB-1144380-A (GB)
Title: Process for fabricating hermetic seals
IPC: H01L23/047
Filed: 1966-12-15
Abstract: 1,144,380. Sealing metal to glass. TEXAS INSTRUMENTS Inc. 15 Dec., 1966 [3 Jan., 1966], No. 56132/66. Heading C1M. A package for semi-conductor devices has leads 24, 26 sealed into a cup 52 by glass 64 fused from a dried slurry that was applied to the package when the leads were in position. The glass is subsequently ground to expose faces of the leads and, after the electronic components have been fitted, a metal closure is welded to the top surface of ring 42.
Patent GB-1377607-A (GB)
Title: Testing and grading of timber
Inventor: SERRY V
IPC: G01N3/20
Filed: 1970-11-27
Abstract: 1377607 Testing timber MEASURING & PROCESS CONTROL Ltd 26 Nov 1971 [27 Nov 1970] 56534/70 Heading G1S A length of timber 1 is tested by applying equal bending couples at two points along its length, changing the magnitude or direction of the couples, and measuring the change of curvature so produced along the length of the timber. The couples may be applied by abutments 9, 10 and load applying rams 13 or by pivoted jaws Fig. 2 (not shown). The change in shape of the timber as the couples are reversed Fig. 5 (not shown) or increased Fig. 4 (not shown) is measured by a series of feelers 15 and sensors 14. The sensors 14 may include linear transducers or strain gauges and their outputs may be fed to a computer programmed to recognize possible patterns of curvature and arranged to effect marking or grading of the timber. The abutments 9, 10 and rams 13 may be movable by power operated means and preferably are automatically positioned according to the length of timber. In the arrangement of Fig. 7 for longer pieces of timber, the right hand end is tested at a first station 17, the middle at a second station 18, and the left hand end at a third station 19.
Patent GB-1414979-A (GB)
Title: Gas burners
IPC: F23D14/10
Filed: 1972-12-07
Abstract: 1414979 Burners D H ROBINSON 7 March 1974 [7 Dec 1972] 56552/72 Heading F4T A gas burner has a burner box with flame ports arranged on a sinuous path running along one side of the box. As shown the ports are slots 1 arranged in the convex top 3 of the box which is provided with an internal gas/air mixing tube (13) fed by a central gas nozzle (15) at one end and a gauze (12) under the ports. Ports 2 may be provided between the slots 1 on the bends in the path. The path may alternatively be formed by slots la, 1b. The slots 1 can be replaced by rows of round holes. A plurality of sinuous rows of ports may be used with adjacent rows preferably 180 degrees out of phase.
Patent GB-1375738-A (GB)
IPC: B05C11/08
Filed: 1971-12-07
Abstract: 1375738 Coating WESTERN. ELECTRIC CO Inc 7 Dec 1971 [7 Dec 1970] 56774/71 Headings B2E and B2L A masking coating on a flat semiconductor substrate is produced by applying to the face of the substrate a fluid masking material and spinning the substrate so as to spread the material uniformly on the face, a fluid being applied under pressure to the opposite face of the substrate to prevent the spread of the masking material to that face. Apparatus for applying a masking material to a flat semiconductor substrate comprises means for applying fluid masking material to one flat face of the substrate, means for rotatably supporting the substrate so that when rotated the fluid masking material spreads across that face to cover it, and means for applying a pressurised fluid to the opposite flat face of the substrate so that the pressureside fluid flows towards the edges of the substrate to prevent the spreading masking material from reaching said opposite face. The method may be used in the manufacture of silicon targets having, arrays of lightsensitive photo-diodes for electron-beam charge storage devices such as television camera tubes. As shown in Fig. 5 a silicon substrate 12 having a layer of silicon dioxide formed thereon is positioned on and held by a free end 31 of a hollow tubular member 32 having a passageway 33 therein and coupled to moving device 36, vacuum source 37 and a rotating device 38. An annular fluid projecting vent 41 is located circumferentially about and spaced from the tubular member 32 and is formed by an upper bevelled flange 42 of an inner tuubular member 43 and by a co-acting shamfered portion 44 of an outer tubular member 47. Tubular member 43 is fixed to platform 39. The tubular members 43 and 47 form a cavity 48 communicating with the annular vent 41 and also communicating through a sealed fitting 51 and a tube 52 with a source 54 of a fluid, e.g. nitrogen or air under pressure. Photo-resist masking material is applied to the silicon oxide of the substrate 12 by dispensing device 61 preferably after the nozzle 41 forces the fluid from the source 54 against the bottom surface 28 of the substrate 12 thereby preventing any such material from contacting the bottom surface 28. Rotating device 38 is then energised to spin the substrate 12 and scatter the layer of photoresist material over the silicon oxide layer and over part of the edge of said layer. A retaining cup 62 surrounding the substrate 12 collects the photo-resist material flowing from the spining substrate. The target is completed by forming by photolithographic techniques a plurality of apertures in the masking material in accordance with the desired array of diodes, etching to form apertures in the silicon oxide layer, removing the masking material, diffusing boron through the apertures to form the diode array.
Patent GB-1417866-A (GB)
Title: Warp defelctor beams for looms
IPC: D03D49/22
Filed: 1972-12-11
Abstract: 1417866 Tensioning warps SULZER BROS LTD 11 Dec 1972 [10 Dec 1971] 57055/72 Heading D1E A back rest for a loom comprises a rigid tubular support 51 to which is secured a longitudinally extending curved resilient guide member 52. The rigid support may be of circular, square or hexagonal tube and the resilient guide member is of sheet metal with both longitudinal edges secured by a respective or a common line of bolts to the rigid support. A deformable resilient clamping member 44 may be interposed between the rigid support and the guide member. A back rest as described may be used for the loop warps of a terry loom or for delicate or elastic yarns, and need not extend across the full width of the loom.
Patent GB-1337746-A (GB)
Title: Sodium perborate and process for its manufacture
IPC: C01B15/12
Filed: 1970-12-04
Abstract: 1337746 Granular sodium perborate UGINE KUHLMANN 4 Dec 1970 [5 Dec 1969] 57800/70 Heading C1A Granular sodium perborate is obtained from a super-saturated solution of perborate by introducing a freezing agent into the surface of the solution and stirring the solution slowly, such that vertical displacements within the solution are limited, wherein small crystals are formed on the surface and move downwards through the solution growing and forming agglomerates as they fall, and then filtering the resulting slurry and drying the agglomerates. It is preferred that the starting solution has a molar ratio of H 2 O 2  : NaBO 2  of 0À8 to 1À1, has a degree of super-saturation (defined) of between 8 and 13 and contains free B 2 O 3  as defined in an amount less than 7 g./l. Freezing agents may be solids or liquids and may be flaked ice, carbon dioxide snow, chlorofluoromethanes, butane or propane. The product has an average grain size of 100-850 Á and density from 0À35 to 0À45 g./cm<SP>3</SP>.
Patent GB-1274930-A (GB)
Title: Improvements in forging machines
IPC: B21J7/14
Filed: 1969-11-26
Abstract: 1,274,930. Swaging machines. MASCHINENFABRIK SACK G.m.b.H. 26 Nov., 1969 [2 Dec., 1968; 11 Dec., 1968; 17 Jan., 1969], No. 57915/69. Addition to 1,144,845. Heading B3H. [Also in Division E2] A swaging machine has four dies 1-4 which are mounted and interact as in Specification 1,144,845 and the pivots 19-22 for the guide arms 15-18 of the dies are mounted in pairs on a pair of slides 24, 25 so that neighbouring pairs can be equally adjusted. The slides are moved by screws 38, 39 against hydraulic rams 40, 41. Both or one slide may be moved to cause the dies to produce a rectangular cross-section workpiece 23. The cylinders 6-9 for the rams 10-13 which move the dies may be pivoted to the machine frame or the joint between the ram and an integral die and arm 15-18, Fig. 3, is made doubly articulate (see Divisions E1-E2). The joint is lubricated during the return stroke and the initial part of the forward stroke. The dies are returned by separate hydraulic units 51-54. The dies 1-4 may be mounted on the arms 15- 18 by overload devices. These devices may be tension bolts (114), Fig. 5 (not shown), shear pins or limit switches or strain gauges which stop the drive to the die on overload. The workpiece is fed stepwise through the dies and is hot.
Patent GB-1255167-A (GB)
Title: Magnetic calender
IPC: D06C15/02
Filed: 1968-12-06
Abstract: 1,255,167. Feeding webs. E.I. DU PONT DE NEMOURS & CO. 6 Dec., 1968 [8 Dec., 1967], No. 58101/68. Heading B8R. [Also in Division D1] A web is passed through a nip of variable opening formed between a pair of ferromagnetic pressure applications, one of which is a roll and the other of which is a roll (Fig. 1) or reciprocatory bed plate (Fig. 6), magnetic means being provided at each side of the nip to urge the applicators together with practically zero applicator-to-applicator flux passage. Using two applicator rolls, one roll (Fig. 10) or two rolls (Fig. 2, 3 or 5) may be interposed in line with the applicator rolls or two rolls (Fig. 9) may be interposed in opposite laterally offset positions to form a hermetically sealed space. Two nips may be formed in series (Fig. 4). Using a bed plate, one roll (Fig. 7) may be interposed.
Patent GB-1329908-A (GB)
Title: Pyridine derivatives
IPC: C07D213/55
Filed: 1971-12-16
Abstract: 1329908 Pyridines containing carbamate and dithiocarbamate groups H HIDAKA 16 Dec 1971 [17 Dec 1970] 58491/71 Heading C2C Novel compounds (I) where R and R<SP>1</SP> are C 1-6  alkyl, C 3-6  cycloalkyl or Ph, are made by reacting compounds (II) with R<SP>1</SP>NCO; (II) are themselves derived from compound (III). Pyridine-2,6-bis-(methanethiol) is also prepared. Pharmaceutical preparations having activity on the cardio-vascular system and especially suitable for treating psychoneurosis, inflammation and allergy contain (I) as active ingredient. Administration may be orally, parenterally or by inhalation.
Patent GB-1367526-A (GB)
Title: Porous electrode for electrochemical cells
IPC: H01M4/88
Filed: 1971-12-20
Abstract: 1367526 Sintered porous electrodes SVENSKA UTVECKLINGSAKTIEBOLAGET (SU) SWEDISH NATIONAL DEVELOPMENT CO 20 Dec 1971 [21 Dec 1970] 59112/71 Heading C7D [Also in Division H1] Porous electrodes are made from a powder mixture of a metal or oxide and 50-90% volume of a water soluble pore former 5-100 micron size. The mixture is sintered at a temperature no more than 125‹ C below the melting point of the pore former and the pore former is then removed by leaching. The metals may be Fe, Ni, Ag, Co, Cr, Pt, Cd, Pb, Zn and the pores formers alkali metal halides e.g. NaCl; CaF 2 , BaF 2 , sulphates, phosphates, silicates, borates or hydroxides. A binder e.g. cellulosic derivative, and a sintering activator e.g. water and glycal may be added to the mixture. The electrode may be formed by ball milling the pore former solution with the powder and rolling or extruding the paste. Alternatively a suspension of metal powder and solution of the pore former may be sprayed on to a support and then pressed or rolled and sintered, or a solution of metal salt e.g. Ni (NO 3 ) 2  and a solution of NaCl may be sprayed on to a support and then pressed or rolled and sintered. The mixture may also be hot pressed and a mesh or grid may be incorporated in the electrode. Different powder layers may be pressed together to give different compositions and porosities and different pressures may be applied to zones of the electrode to produce a differential property. The electrodes may be impregnated with plastics or an active material such as Ni (OH) 2  and are used as fuel cell electrodes or electrodes in primary cells e.g. Le Clanche and alkali MnO 2  cell, Pb-acid accumulators or Ni-Cd, Ni-Fe, Ag-Zn, Ni-Zn alkali accumulators.
Patent GB-1436569-A (GB)
Title: Dental implants
IPC: A61K6/884
Filed: 1973-12-20
Abstract: 1436569 Dental prostheses BIOIMPLANT SAS DI FIORINO PAGANI & C 20 Dec 1973 [22 March 1973] 59148/73 Heading A5R A method of making a rigid dental implant comprises wholly coating a metal or alloy core by polymerising tetrafluoroethylene or polymers thereof or sintering polymers of tetrafluoroethylene directly upon the core to adhere thereto. The outer surface of an element made by the above method may be smooth or slightly roughened and the core be of an inexpensive, easily machinable metal or alloy e.g. Duralumin (Registered Trade Mark). Examples include implantation blade collars, screws, wickers, needles, blades and grates driven into suitable seats previously formed in a maxilla or jaw bone for the support of teeth, dental bridges or complete dentures.
Patent GB-1333426-A (GB)
Title: substructure for a cable car
IPC: B60P3/035
Filed: 1970-12-16
Abstract: 1333426 Cable clamps BEWA BETRIEBSBEDARF FUER BAHNEN BERGBAU UND INDUSTRIE 16 Dec 1970 [17 Dec 1969 16 March 1970] 59673/70 Heading F2X In a cable-car sub-structure for clamping cables to a cable-support, the cables 13 to 13<SP>1</SP> are clamped against a curved base 12 by screws 19. A yoke 14 carrying the screws 19 is coupled to the base 12 by a pivoted side member or bolt 21 which can be swung aside to allow insertion of the cables. In another embodiment (Figs. 4, 5, not shown) the clamping action is effected by the bolt 21.
Patent GB-1380655-A (GB)
Title: Seats
IPC: B60N2/70
Filed: 1972-12-28
Abstract: 1380655 Upholstered seats NHK SPRING CO Ltd 28 Dec 1972 [29 Dec 1971 31 Jan 1972] 59853/72 Heading A4M A seat comprises a moulded foam cushion in which is embedded a resilient structure 11 comprising an upper frame 13 disposed along the upper outer periphery of the cushion, a lower frame 16, and springs 18 connected to and supporting the upper frame 13 from below, the frames 13, 14 being inter-connected directly, as at 17, and/or by the springs 18. The springs 18 may comprise V-shaped sinuous springs or coil springs.
Patent GB-1343629-A (GB)
Title: Solid state electrochemical memory dev'ce
IPC: H03K17/28
Filed: 1971-12-23
Abstract: 1343629 Time delay circuits SANYO ELECTRIC CO Ltd 23 Dec 1971 [24 Dec 1970 (2) 16 Nov 1971] 60133/71 Heading H3T [Also in Division G1] A time delay measuring or switching circuit utilizes as the timing element an electrolytic coulometer 30 whose terminal voltage in a first, charging, mode of operation increases linearly with the charge passed through the coulometer and in a subsequent, discharging, mode decreases linearly with the charge passed through in the reverse direction. In Fig. 10 a load 48 is to be energized via a transistor TR15 for a presettable period of time. With switch SW1 on AUTO and SW5 closed, SW2 is depressed to switch on TR17 and thereby both supply power to the controlling circuitry and allow TR15 to conduct to energize the load 48. Switch SW3 is then depressed to close charging contacts CC, and the coulometer charges rapidly (within a few seconds) via a low-value resistor 50. The rising coulometer voltage is amplified (TR 11, TR 12) and displayed on a meter 14 so that the operator may release SW3 to stop the charging process when he sees that the coulometer voltage has reached the level corresponding to the required time delay. At the same time the increase in the output voltage of the amplifier TR11, TR12 turns off TR13, TR14 so that TR15, TR16 are held on to keep the circuit operating even though SW2 is now released. Once SW3 has been released, discharging contacts CD are closed so that the coulometer now discharges slowly through a high-value resistor 52. When, at the end of the preset time period, the coulometer voltage reaches zero, TR15 and TR16 are switched off to de-energize both the load 48 and the control circuit. If at any time it is desired to reduce the preset time delay, SW4 may be closed to allow discharge at a rapid rate through a low-value resistor 53. Other embodiments using different amplifying and threshold switching circuits are described (Figs. 4, 5, 7, not shown) A plurality of relayoperating threshold circuits, each triggered at a different value of coulometer voltage, may be provided to effect a complete programme of switching operations. One such circuit may break the coulometer current path to prevent the coulometer being used beyond its linear range. The meter may be digital.
Patent GB-1298610-A (GB)
Title: Apparatus for use in winding yarn
IPC: B65H54/28
Filed: 1970-12-21
Abstract: 1298610 Clutch-brake combinations CELANESE CORP 21 Dec 1970 [30 Dec 1969] 60502/70 Heading F2L [Also in Division D1] Cams 28 drivable by a common shaft 36 may be individually clutched thereto or declutched therefrom by means of a roller 59, pivotable about the axis of a control shaft 50, engaging a surface 60 of the cam hub and moving the cam axially along the shaft out of engagement with a clutch-plate 48 fixed to the shaft, against the action of a spring 44. Further rotation of the shaft 50 brings a brake pad 61 into engagement with the surface 60 to stop rotation of the cam.