baber/WOPTO huggingface dataset:
Patent GB-1526070-A (GB)
Title: Method and apparatus for treating the surface of objects by means of an electrical discharge
IPC: H01T19/00
Filed: 1975-12-23
Abstract: 1526070 Discharge apparatus SOFTAL ELEKTRONIK ERIK BLUMENFELD KG 23 Dec 1975 [30 Dec 1974] 52623/75 Heading H1X Apparatus for treating the surface of a conductive or non-conductive object 6 with an electrical discharge comprises a profiled or knife electrode 2 or 3 arranged substantially tangentially to a cylindrical counter-electrode 1, both electrodes being arranged on the same side of the object to be treated, with the knife electrode 2 or 3 parallel with the surface portion thereof or with the tangent thereto, and a flow of gas is provided through the discharge gap 7 between the electrodes towards the surface portion of the object under treatment. As shown, the cylindrical electrode 1 lies essentially in a closed pressure chamber 4 and forms two discharge gaps with respective spaced knife electrodes 2, 3 forming the top wall of the chamber 4. The cylindrical electrode 1 has a dielectric coating 8 and is in contact with the object to be treated, e.g. a plastics bottle, and is rotated along with it. Preferably the pressure of the gas, e.g. air, in the chamber 4 is 1500-2500 mm. WG and the interelectrode voltage is 10-15 kv. at 20 kHz. The object to be treated may comprise plastics material, paper, metal or cloth, for example a plastics bottle may be treated to facilitate printing thereon.
Patent GB-1158587-A (GB)
Title: Improvements in and relating to Mill Stands
Inventor: YEOMANS KENNETH ALFRED
IPC: B21B31/32
Filed: 1965-12-16
Abstract: 1,158,587. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 15 Dec., 1966 [16 Dec., 1965], No. 53430/65. Heading B3M. A rolling mill stand includes within its stress path a unit whose resilience can be varied to alter the stiffness of the stand. The unit is positioned between a screwdown 3 and a roll chock, and incorporates a cylinder 5, a piston 7, and a liquid-filled space 6 connected to a chamber 8. To obtain a desired volume of liquid in the system, a piston 10 in the chamber is adjusted, a relief valve 14, between the chamber and a supply reservoir 11, determining the pressure of the liquid. Also connected between the chamber and reservoir are a one way valve 12 and an on/off switch 13. In a modified unit, Fig. 3, the cylinder 5 and chamber 8 are formed integrally, a sealing ring being bonded to both the cylinder and the piston 7. Movement of a threaded piston within the chamber 8 varies the volume of liquid as before while the pressure is fixed by a relief valve during adjustment.
Patent GB-534397-A (GB)
Abstract: 534,397. Indicators, application of. FRUIN, H. A. H., and HOLLAND, L. G. Sept. 21, 1939, No. 36805/38. [Class 51 (i)] A pressure gauge is connected to both the ashpit and to the space above the fuel bed of a boiler furnace.
Patent GB-1104650-A (GB)
Title: A poppet valve
IPC: F16K31/08
Filed: 1966-12-01
Abstract: 1,104,650. Valves. MASCHINENFABRIK UND GIESSEREI NETSTAL A.G. 1 Dec., 1966 [1 Dec., 1965], No. 53899/66. Heading F2V. The stem 2a, 2b of a poppet valve closure member 2 is provided with armatures 15, 17 co-operating with electromagnet 8 and permanent magnet 11 respectively. The electromagnet serves to open or close the valve against the closing or opening bias of the permanent magnet. The armatures have axial grooves in their outer surface to allow flow therepast. In the embodiment of Fig. 2, not shown, fluid is also allowed to flow through an annular clearance space between the interior of the armatures and spacers and the stem. In a further alternative, the permanent magnet is replaced by an electromagnet.
Patent GB-1488397-A (GB)
Title: Preservation of boar semen
IPC: A61K35/52
Filed: 1974-12-17
Abstract: 1488397 Preserved semen INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE 17 Dec 1974 [18 Dec 1973] 54409/74 Heading A2D In a method of treating boar semen wherein the sperm is collected, filtered, centrifuged and the centrifugation sediment diluted with at least one diluent, after centrifugation at ambient temperature, the centrifugation sediment is diluted with a first diluent containing no cryoprotector agent and then diluted with a second diluent containing a cryoprotector agent, the semen then being frozen in known manner. Glycerol is a suitable cryoprotector agent. After the addition of the first diluent, the temperature of the semen ispreferably lowered to 15‹C. The frozen semen may be in the form of pellets or straws. The frozen semen may be thawed by adding the frozen semen to a thawing product having a temperature of 35 to 60‹C e.g. seminal plasma used at a temperature of 37‹C.
Patent GB-1477470-A (GB)
Title: Surface-coating compositions containing polyoxymethylene oxazolidines
IPC: C09D5/02
Filed: 1974-12-23
Abstract: 1477470 Polyoxymethyleneoxazolidines TENNECO CHEMICALS Inc 23 Dec 1974 [4 March 1974] 55431/74 Heading C2C [Also in Divisions C3 and C4] The invention comprises compounds of formula where R is hydrogen, C 1 -C 6  alkyl, phenyl, halophenyl or -(CH 2 O) m CH 2 OH; R<SP>1</SP> is C 1 -C 6  alkyl or -CH 2 OH; m is 0, 1, or 2 and n is 1-4. The compounds may be prepared by reacting an aminoalcohol or aminodiol with formaldehyde, or by reaction of the appropriate oxazolidine or hydroxymethyl oxazolidine with formaldehyde. The compounds are biocides suitable for protection of surface coating compositions against attack by fungi and bacteria.
Patent GB-1414127-A (GB)
Title: Wired broadcasting systems
IPC: H04N7/173
Filed: 1971-12-03
Abstract: 1414127 Wired broadcasting systems; automatic telephone systems COMMUNICATIONS PATENTS Ltd 21 Nov 1972 [3 Dec 1971] 56299/71 Headings H4R and H4K In a broadcasting system of the type disclosed in Specification 1,272,594 one of the two pairs of conductors connecting the subscriber station with the programme exchange can be used for telephony. In two embodiments (Figs. 1-4, not shown) the interstitial audio frequency conductors are used solely to connect a telephone at the subscriber station with a telephone exchange via the programme exchange, and the control signalling necessary for TV programme selection utilizes the high frequency vision conductors. Two different forms of signalling are used. In one embodiment (Figs. 1-2) programme selection D.C. pulse signals are used on one high frequency conductor, whilst a reset pulse is applied to the second conductor, a sheath of the cable being used as the return conductor in both cases. In the second embodiment, reverse polarity D.C. signalling is used on the two high frequency conductors only, i.e. positive pulses for programme selection with negative polarity for resetting. In a third embodiment (Figs. 5-6) both the telephone circuit and the control circuit utilize the audio frequency conductors, and a changeover switch S is used to select either the control or the telephone circuit. With the switch S in the circuit position shown the telephone subset is connected via the cable and relay contacts R 31 , R 32  in the programme exchange to a telephone exchange, and the audio output to the television set is muted. When switch S is put to the control circuit position, the high frequency conductors 1, 2 are looped to switch relay R 3  so as to connect the subscriber programme selector, in the form of a telephone type dial, to the programme selector switch at the programme exchange.
Patent GB-1451230-A (GB)
Title: Method of producing a reconstituted tobacco product and product made thereby
IPC: A24B15/12
Filed: 1973-12-06
Abstract: 1451230 Reconstituted tobacco product KIMBERLY-CLARK CORP 6 Dec 1973 [21 May 1973] 56552/73 Heading A2C A method of making a reconstituted tobacco product for use in a smokable article, comprises:-a) cooking tobacco stalk material at an elevated temperature to individualise the stalk fibres, b) thereafter soaking the cooked stalk fibres at room temperature in a solution of sodium hydroxide or potassium to produce modified fibres, c) separating other natural tobacco material into fibrous material and extract material, d) mixing the modified fibres with the fibrous material and forming the mixture by papermaking techniques into a paperlike web, and e) impregnating the web with the extract material. In step a) the tobacco stalk material may be cooked in a solution containing sodium hydroxide and optionally sodium sulphide or sodium sulphite. In Example V the natural tobacco material used in step c) comprises 50% by weight Americanblends. 40% by weight of midribs of flue-cured tobacco and 10% by weight of midribs of Burley tobacco to which after extraction 10- 40% by weight of bright leaf tobacco, treated according to steps a) and b), is added.
Patent GB-1131759-A (GB)
Title: Improvements in or relating to commutatorless d.c. motors
IPC: H02P6/14
Filed: 1966-12-19
Abstract: 1,131,759. Oscillators. GEBR. BUHLER NACHFOLGER G.m.b.H. 19 Dec., 1966 [23 Dec., 1965], No. 56637/66. Heading H3T. [Also in Division H2] The phase windings 1, 2, 3 of a motor having a permanent magnet rotor are energized in turn by D.C. from source 4 when power transistors 5, 6, 7 are rendered conductive sequentially by drive transistors 9, 10, 11 respectively. Each phase winding is connected to the drive transistor of the control circuit of the following phase winding through RC networks 13, 14, 15 and to the control circuit of the preceding phase winding through RC networks 17, 18, 19 respectively. In operation, when switch 24 is closed, one of the phase windings is energized and attracts the rotor, this rotation of the rotor induces an A.C. voltage in the energized winding which triggers the following or preceding control circuit into conduction depending on the time constants of the respective RC networks, and thereby provide a given direction of rotation. The opposite direction of rotation may be obtained by changing over the connections of the RC networks or alternatively changing their time constants by altering the resistance of the circuits. It is stated that the RC network connecting each phase winding to the preceding stage may be replaced by a mechanical device for preventing back running.
Patent GB-1400385-A (GB)
Title: Preformed sheet-like structures
IPC: E04D5/10
Filed: 1971-05-30
Abstract: 1400385 Floors; roofs; bridge decks W R GRACE & CO 30 May 1972 [30 May 1971] 56862/70 Headings E1G and E1W [Also in Division B5] A method of forming a water-proof seal on a structure e.g. a floor, roof or bridge deck comprises applying thereto the adhesive face of a structure comprising (a) a bituminous sheet comprising two layers attached to each other, one layer being of a substantially non- adhesive bituminous composition, and each of the bituminous compositions comprising at least one polymer uniformly or non-uniformly distributed throughout the thickness of the layer thereof, and (b) on the surface of the layer of the pressure sensitive adhesive composition, a protective coating which is physically removed from (a) prior to application. A pressure sensitive adhesive is defined as being a material which immediately and permanently bonds at ambient temperatures and without the application of heat or solvents, the structure to an irregular or dusty concrete structure. The term "bituminous" is defined as including bitumen, asphaltic bitumen, tars and pitches and their derivatives (both natural or synthetic). The polymer may be elastomeric or non elastomeric e.g. natural or synthetic rubber which may be reclaimed. The protective coating may be a release coated paper e.g. a siliconised paper or a vinyl chloride polymer film. The non-adhesive face of (a) can be treated to protect it against damage and/or treated to provide an improved keying surface for another material e.g. the face can be textured or gritted. In a preferred embodiment, a layer of reinforcing material e.g. glass fibre in the form of a woven fabric, mesh, tissue, continuous film or strand, a synthetic polymer in the form of a woven fabric, mesh, film or strand, a metal in the form of a foil or expanded or perforated metal, paper or a woven or non-woven fabric may be contained within either or both of the layers or between the layers. The bituminous sheet may be laid on a concrete base and be covered by a layer of concrete, sand/cement or asphalt or by cladding material.
Patent GB-1204207-A (GB)
Title: Animal feeding device
Inventor: PAXMAN PHILIP JOHN
IPC: A01K9/00
Filed: 1968-12-04
Abstract: 1,204,207. Animal feeder. P. J. PAXMAN. 8 July, 1969 [4 Dec., 1968], No. 57614/68. Heading A1M. An animal feeding device comprises a container 1 containing foodstuff having outlets 2 connected to which are flexible tubes 3 carrying nozzles to which may be in the form of teats. The nozzles are held in apertures 6 or 7 of the screen or panel 5 thus providing two height levels of feeding. The container 1 is supported within the screen 5 on a height adjustable ring 10 to ensure gravity feed in either nozzle positions 6 or 7, and contains a float 14 actuating a feed valve 15 abutting a supply socket 14 in the line 18 from the master supply tank 21. Gates 26 are mounted on members 24 and are secured radially by members 28 to control access of the animals to the nozzles.
Patent GB-1442750-A (GB)
Title: Electric current controlling devices
IPC: H01C7/10
Filed: 1972-12-18
Abstract: 1442750 Semiconductor devices GENERAL ELECTRIC CO Ltd 30 Nov 1973 [18 Dec 1972] 58311/72 Heading H1K A threshold switch switchable from a high to a low resistance state by a voltage above a threshold comprises at least two identical switching devices connected in series, each device comprising a switching element and first and second electrodes, the second electrode of each device being connected to the first electrode of the succeeding one. Each device may comprise a first molybdenum electrode 6 on a glass substrate 5, a silica layer 7 having an aperture 8, a switching element 10 of 15 atomic per cent germanium and 85 atomic per cent tellurium and a second electrode of a thin chromium film 11 and a thicker gold layer 12. The material layers of each device may be simultaneously deposited by sputtering or vacuum deposition and shaped by masking or photolithographic techniques. Preferably the molybdenum is sputtered, the remaining materials being vacuum deposited. The gold electrode may be thickened by electroplating. The threshold voltage of the switch is said to be the sum total of that of each of the separate devices. In an alternative embodiment both electrodes may be on the same side of element 10.
Patent GB-1326047-A (GB)
Title: Flat composite fluorescent display tubes
IPC: G09F9/313
Filed: 1970-12-09
Abstract: 1326047 Display tubes ISE ELECTRONICS CORP 9 Dec 1970 [13 Dec 1969] 58422/70 Heading H1D A flat fluorescent display tube comprises within an evacuated envelope, an electrically insulating substrate 1 having mounted on one surface a plurality of similar display members, each member including a plurality of fluorescent segments (21 to 28) Fig. 1, (not shown), which are selectively energizable to display a selected letter, corresponding segments of each member being connected along the other surface of the substrate 1, a filament comprising elements 10a to 10e confronting said display members, a plurality of independent electrode structures 4a to 4j, one for each display member, each electrode structure comprising a letter forming electrode (41) Fig. 3, (not shown), having perforations each corresponding to one of said fluorescent segments, a mesh control grid (44) and a frame-shaped electrode (42) interposed between said letter-forming electrode and said grid. Filament elements 10a to 10e are secured by their ends to metal supports 6a, 8a to 8d and 6b, and pass around resilient metal supports 7a to 7e. An intermediate connection 9c is made to the filament and is connected to a zero reference potential to render the potential differences between the filament and electrode structure, and hence the brightness, of each display member more uniform. The envelope of the tube consists of two metal portions having peripheral flanges which are welded together, one of the portions having a transparent or translucent window. Reference has been directed by the Comptroller to Specification 1,166,598.
Patent GB-1459209-A (GB)
Title: Contact unit for a dewatering device and process for its manu facture
IPC: D21F1/00
Filed: 1973-12-18
Abstract: 1459209 Contact unit R POESCHL 18 Dec 1973 [18 Dec 1972 2 July 1973] 58499/73 Heading D2A A contact unit for use in a dewatering device in a papermaking machine comprises a channel-shaped member 2 supporting segments 1 arranged side-by-side, the upper surfaces of which are free and located in a common plane and are made of a material having a hardness greater than 6 on the Moh scale, the segments being adhesively bonded to the channel-shaped member. Preferably, the segments consist substantially entirely of the hard material which may be sintered aluminium oxide or silicon carbide. The segments may be bonded to the channel-shaped member by means of an epoxy resin bonding composition which may include fillers, fibres, wires, or fabrics. Bonding may be assisted by providing the segments with at least one rib which, in use, projects downwardly into the channel-shaped member, (Figs. 2-10, 14-18 not shown). Alternatively, at least one longitudinal groove, preferably of trapezoidal cross-section, may be provided on the undersides of the segments (Figs 11, 12, 19, 20, not shown); or, a longitudinally extending metal bar may be arranged between the segments and the base of the channel-shaped member (Figs. 11, 22, not shown). In the latter case, the bar may be hollow in order that a coolant liquid may be circulated therethrough (Figs. 19, 20 not shown). The channelshaped member may have different crosssections, (Figs. 4-7, not shown). The leading ediges of the segments may be Sharp, (Figs. 8-11, 18-22, not shown). The contact unit may be inserted into carrier body 16 so that the upper surfaces of the segments are either above the surface of the carrier body, as shown, or flush with it, (Fig. 14 not shown). The carries body may be provided with grooves 25 and suction holes 26 for dewatering, as shown, or may be formed with slots, (Figs. 23-26, not shown). The carrier body may be provided with channel-shaped guides e.g. of extruded aluminium for reception of the contact units, each guide having a slot cooperating with a boss located on the channelshaped member 2, (Fig. 25, not shown). The contact unit may be held in the carrier body by means of a vacuum acting through the body underneath the unit, (Fig. 16, not shown).
Patent GB-1450070-A (GB)
Title: Electrolytic cell having silicon electrodes useful for the electrolysis of alkali metal chlorides
IPC: C25B9/17
Filed: 1973-12-18
Abstract: 1450070 Silicon electrodes for electrolysis PPG INDUSTRIES Inc 18 Dec 1973 [3 May 1973 (2)] 58520/73 Heading C7B In an electrolytic cell, both the anode and cathode comprise elemental Si, having a conductivity of at least 10<SP>2</SP> (#-cm)<SP>-1</SP>, the anode being at least partly coated with an electroconductive material preferably having a C1 overvoltage below 0À125V at 200ASF. The cathode may be similarly coated, with a material having a voltage against a standard calomel electrode of less than 1À3V at 100ASF. The electrodes may be separate or a single bi-polar sheet. Electroconductivity may be imparted by dopant elements e.g. B, Al, Ga, P, Bi, Sb or As. Alloying elements or materials may be present e.g. Al, Ga, Mn, Fe, ferrosilicon or the silicides of Fe, Mg, Mn, Co or Mo. Added conductivity and inertness may be attained with a surface coating of silicides, e.g. of Pt group, valve or heavy metals. In the case of the anode, the conductive layer may comprise one or more Pt metals or oxides optionally with non-conductive oxides e.g. of Al, Sn, Ti, Zr, Nb, Hf, Ta or W. The cathode may be similarly coated and may be porous. As described, a bi-polar cell may comprise a plurality of cells separated by bi-polar Si electrodes. Alternatively the electrodes may be supported on and extend from a back plate which divides the cell, the electrodes being inter-digitated Fig. 3 (not shown). The bi-polar electrode may comprise a plurality of small elements interlocking via tongue and groove joints and held together by compression rods. A plurality of such electrodes may be clamped between alternating sealing-spacer members provided with diaphragms of e.g. asbestos paper supported on PTFE mesh, to provide a multicell arrangement. The electrodes are useful in chlor-alkali electrolysis.
Patent GB-1292861-A (GB)
Title: Improvements in and relating to lubricating oils
IPC: C10M169/00
Filed: 1969-12-01
Abstract: 1292861 Lubricants TECHNOCHEMIE GmbH VERFABRENSTECHNIK 1 Dec 1969 [5 Dec 1968] 58591/69 Heading C5F Lubricants comprise a mixture of C 24 -C 45  diesters, at least one ester being formed from a straight-chain alcohol and a branched-chain acid, at least one other ester being formed from a branched-chain alcohol and a straight-chain acid, the viscosity of at least one ester being above 4 c.S. at 98À9‹ C. and the viscosity of at least one other ester being below 4 c.S. at 98À9‹ C. The mixture may also comprise a mineral oil. The example discloses a mixture of trimethyl adipinic acid-di-n-octyl-n-decyl-ester and heptadecane dicarboxylic-di-isotridecylester.
Patent GB-1260208-A (GB)
Title: Swellable polymers
IPC: C08F2/22
Filed: 1969-12-02
Abstract: 1,260,208. Gel filtration chromatography; dialysis membrane. MERCK PATENT G.m.b.H. 2 Dec., 1969 [15 Feb., 1969], No. 58828/69. Heading B1X. [Also in Division C3] Gel chromatographic separation of mixtures optionally performed under pressure may be effected using swellable polymers, in particulate form in the unswollen state or in the form of membranes e.g. planar or tubular and for dialysis or desalination, prepared by polymerising at least one diacrylate or dimethacrylate of an alkylene glycol or polyalkylene glycol or a triacrylate or trimethacrylate of a polyalkylene oxide triol, the alkylene groups containing 2 or 3 carbon atoms. Specified esters are of ethylene, diethylene, triethylene, tetraethylene and propylene glycols and glycerol/propylene oxide adducts; and cross-linking comonomers, e.g. other glycol acrylates and methacrylates, divinyl benzene, divinyl pyridine, divinyl ethers and esters, diallyl esters, diallyl sulphone and vinyl and allyl acrylic compounds, may also be used. Pore. formers, e.g. polystyrene and calcium carbonate, may be incorporated in the polymers and subsequently dissolved out. Examples describe polymers of (1 and 3) tetraethylene glycol dimethacrylate for the separation of polystyrenes and dextrans; (2 and 4) polyethylene glycol and ethylene glycol dimethacrylates for the separation of polystyrenes and polyethylene oxides; and (5) polyethylene glycol dimethacrylate for the separation of polystyrenes. Polypeptides and polynucleotides may also be separated. Further examples describe the preparation of particulate polymers from (6) polypropylene oxide triol trimethacrylate, (7) triethylene glycol dimethacrylate, (8) diethylene glycol dimethacrylate and (9) polyethylene glycol dimethacrylate and butane diol dimethacrylate; and membranes from (10-13) polyethylene glycol dimethacrylate.