baber/WOPTO huggingface dataset:
Patent GB-847686-A (GB)
Title: Poly (3-methyl-1-butene) and a process for the preparation thereof
IPC: C08F2/00
Filed: 1957-11-27
Abstract: Crystalline poly (3-methyl-1-butene) of melting point about 300 DEG C is produced using as catalyst the product of a halide or oxyhalide of a Group IVA, VA or IVA metal and an organo metallic compound of Al, Zn, Be or Mg which may contain hydrogen or halogen substituents. Polymerization may be in bulk or in an inert diluent such as an aliphatic or aromatic hydrocarbon and when reaction is complete solvents such as isopropanol, methanol or water-optionally containing HCl-may be used in the isolation of the polymer; p-di-t-butyl cresol may be added as a stabilizer.  Applications specified are moulded articles, films, coatings, fibres, condenser tape and insulation for wiring, gears or gear boxes.ALSO:Catalysts used in the polymerization of 3-methyl-1-butene comprise the product of a halide or oxyhalide of a Group IVA, VA or VIA metal and an organometallic compound of formula <FORM:0847686/III/1> or R111-Mg-R1111, wherein R and R1 are aromatic or aliphatic radicals, R11 is hydrogen, halogen, or an aromatic or aliphatic radical, R111 is an aromatic radical or an aliphatic radical of at least 4 carbon atoms, and R1111 is hydrogen, halogen or as R111.  Many such organometallic compounds are listed; specified halides are VCl2, VCl3, VCl4, VOCl3, VOCl2, TiCl2, TiCl3, TiCl4, TiF3, TiF4, TiBr3, TiBr4, ZrCl4, CrCl3, CrO2Cl2, WCl4 and WCl6.  The usual hydrocarbon diluents are mentioned.
Patent GB-1046662-A (GB)
Title: Liquid screening or filtering apparatus
Inventor: BROADBENT EDWARD THEODORE
IPC: B01D35/02
Filed: 1964-09-10
Abstract: 1,046,662. Filters for liquids. LONGWOOD ENGINEERING CO. Ltd. Sept. 8, 1965 [Sept. 10, 1964], No. 37004/64. Heading B1D. A filter for connection into a pipeline of pumped liquid comprises a casing formed by three similar pipe sections 1, 2 and 3 which are bolted or screwed together, each section containing a skeleton bush or insert 20, 21 and 22 respectively. Member 21 supports internally a cylindrical filter unit (not shown) which is cleaned by rotating spindle 13 which supports or is integral with a brush (not shown). Flushing out through pipe 3 of foreign matter thus removed is controlled by a drainage value (not shown). For filtration, the pumped liquid enters at 1 and leaves at 2. The rotation of spindle 13 may be electrically actuated by a time switch at predetermined intervals, or actuated by a predetermined flow of foreign matter or by flood conditions.
Patent GB-1536071-A (GB)
Title: Hydraulic control for variable displacement pumps
IPC: F04B49/00
Filed: 1977-09-06
Abstract: 1536071 Controlling variable displacement pumps CATERPILLAR TRACTOR CO 6 Sept 1977 [24 Feb 1977] 37147/77 Heading G3P One or more variable displacement pumps 10, 12 driven by a single prime mover 16 are controlled by a system comprising load sensing means 62 receiving pilot fluid from a fixed displacement pump 30 driven by the prime mover 16 and producing a signal proportional to the load on the pumps 10, 12, which is fed to the inlet 50 of an underspeed control valve 44 which is connected to the pilot pump 30 so as to be responsive to the speed of the prime mover, the outlet 52 of the valve 44 being connected to actuators 14 controlling the displacement of the pumps. The actuators 14 maintain the pumps at maximum displacement unless the signal received by them exceeds a predetermined level. If the pumps are overloaded, then the signal from the means 62 will increase, and the decreased pressure drops across orifices 40, 42 caused by the fall in prime mover speed will bias the valve 44 to pass an increased proportion of this signal so that pump displacement is reduced. If however there is a fall in prime mover speed that is not cause by an overload, then the proportion of the signal from the means 62 passed by the valve 44 will still be increased, but this will not be sufficient to reduce pump displacement. Specification no. 1436613 is referred to.
Patent GB-1115196-A (GB)
Title: Roof ventilators
IPC: E04D13/17
Filed: 1965-08-31
Abstract: 1,115,196. Roofing ventilator. FARBWERKE HOECHST A.G. 3 Aug., 1965 [28 Aug., 1964], No.37198/65. Heading E1W; Apparatus for ventilating the spaces between the layers of a multi-layer roof comprises a stack of hollow members 2 (the Figure shows only the uppermost member) having flanged open ends I and one or more apertures 4 at their other ends. Each hollow member communicates with one of the spaces to be ventilated and the uppermost member has a cover 6 secured thereto. Members 2 have locating projections 3 and may take the form of a cone, a pyramid, (or a frustum of either) a cylinder or a prism. They may be open at both ends and preferably comprise a mixture of 50-90% by weight of polyvinyl chloride and 50-10% of chlorinated polyethylene.
Patent GB-1122829-A (GB)
Title: Improvements in or relating to diaphragm pumps
IPC: F04B43/02
Filed: 1965-09-01
Abstract: 1,122,829. Diaphragm pumps. F. L. ATKINSON. Sept. 1, 1966 [Sept. 1, 1965], No. 37274/ 65. Heading F1A. In a diaphragm pump the diaphragm 15 is actuated through a column of liquid by a piston 21 and the piston and diaphragm are connected by a rod 26, e.g. a spring-biased telescopic rod. The piston is reciprocated from a manually or power operated crosshead 23. A ball check valve may be provided in the piston for the reintroduction of liquid which has leaked past the piston. Devices 31 and 32 are provided for the introduction of actuating liquid and for air bleeding.
Patent GB-1115613-A (GB)
Title: Photographic silver halide materials
IPC: G03C1/83
Filed: 1965-09-01
Abstract: The invention relates to hemicyanine dyes of the formula <FORM:1115613/C4-C5/1> in which L is H or halogen, Y and Y2 represent H or the atoms necessary to complete a benzene ring or sulphonated benzene ring fused to the indolenine ring, R and R1 represent H or alkyl or together represent the atoms necessary to complete a cycloalkane group, R2 represents an alkyl or substituted alkyl group, Z represents aminoaryl, alkoxyaryl or hydroxyaryl and X is an acid anion if R2 is neither a sulphoalkyl or carboxyalkyl group.  The dyes are obtained by heating an appropriately substituted 2-methyl indolium salt with a compound of formula H.CO.CH: CH.Z.  The substituted alkyl group R2 may be sulphoalkyl, carboxymethylcarbamoyloxymethyl and its ethylester, hydroxyethyl or carboxyalkyl.ALSO:3 - Hydroxyethyl - 1,1 - dimethyl - 1H - benz-[e] indolium bromide is prepared by reacting 1,1,2-trimethyl-1H-benz[e] indole with 2-bromoethanol. 3 - Carboxyethyl - 1,1,2 - trimethyl - 1H - benz[e] indolium-iodide is obtained similarly. 3 - Hydroxyethyl - 1,1 - dimethyl - H - benz[e] indolium-iodide may be obtained from the above bromide by treatment with sodium iodide.
Patent GB-1318836-A (GB)
Title: Axially locked pipe joint
IPC: F16L17/035
Filed: 1971-08-09
Abstract: 1318836 Pipe couplings CLOW CORP 9 Aug 1971 [6 Jan 1971] 37303/71 Heading F2G Pipes 10, 14 are flexibly coupled for limited universal relative pivotal movement by a coupling comprising spigot and socket members 11, 13 sealed by a gasket 16 and locked against axial separation by a collar 18 which bears on a bearing ring 21 on the spigot. As shown, a chamfered edge of the bearing ring slidably engages a concave spherical surface of radius R on the collar 18 the centre C of which lies substantially in the radial plane occupied by the gasket 16. Lugs and recesses 25, 27 on the collar and socket enable the latter to be coupled as a bayonet fitting coupling being effected by axial, followed by rotational, displacement, or a bolted flange arrangement may be adapted (Fig. 5, not shown). When a bayonet fitting is used, a locking pin (28b) (Fig. 4, not shown) disposed in a radial bore extending through the periphery of the collar 18 and into an arcuate key (28) on the socket member prevents accidental separation of the coupling. The bearing ring 21 may be welded to the spigot or a circular cross-section split-ring (21a) (Fig. 5, not shown) may be clipped into a circumferential groove (23) on the spigot.
Patent GB-1535779-A (GB)
Title: Humidifier
IPC: F24F6/06
Filed: 1976-12-10
Abstract: 1535779 Humidifier HUMIDIFIER GROUP Ltd 10 Dec 1976 [11 Sept 1975] 37453/75 Heading B1R A humidifier comprises a means (such as a blower or fan 10, 11) for drawing air through an inlet 4 and expelling it through an outlet 6 and a belt assembly 7 including an endless, air-permeable, liquid absorptive belt carried by at least one roller and mounted so that the assembly can be moved into an operative position in which the belt moves through the water in a removable reservoir 8 as the roller rotates and into a non-operative position in which the belt is clear of the water in the reservoir; the belt is arranged and guide means 34 for the air flow are provided so that the air flows through at least two spaced-apart portions of the belt. As shown the blower 11 and a motor driving the belt assembly can be controlled by a humidity sensitive control unit 9. The belt can be carried on two rollers 13, 14, on a single rotatable drum or on a plurality of rollers. The belt can be made of coarsely woven cotton or of a flexible polyurethane foam.
Patent GB-998010-A (GB)
Title: Improvements in or relating to methods of manufacturing semiconductor devices
IPC: H01L21/00
Filed: 1961-10-19
Abstract: 998,010. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 19, 1961 [Oct. 22, 1960], No. 37527/61. Heading H1K. A semi-conductor device is made by alloying a carrier metal free of aluminium to a semiconductor body in the presence of aluminium vapour generated by heating a source of elemental aluminium or aluminium alloy adjacent the body to 1000-1400‹ C. The process, which results in the formation of a molten alloy zone on the surface into which some of the aluminium is transferred, is carried out in vacuum or in an inert or reducing atmosphere. Suitable carrier materials for use with germanium are indium, gold, lead and bismuth, while gold, tin and indium are suitable for use with silicon. In one embodiment (Fig. 2) a system consisting of an N-type silicon wafer 1, a pellet 2 of pure tin, and powdered aluminium 5, assembled in a graphite jig 3 is heated to 1150‹ C. for S minutes in a flow of equal volumes of dry oxygen-free hydrogen and nitrogen. After removal from the jig the wafer is etched in a standard acid mixture. In an alternative method pellets of tin are first alloyed to an N-type silicon wafer 11 (Fig. 3) by heating at 1000‹ C. in hydrogen. Subsequently aluminium powder 15 in a binder is attached to one of the pellets and the assembly heated in jig 16 to 1100‹ C. for 5 minutes in nitrogen to form PN junctions beneath each pellet. The wafer is then divided between the pellets to form three diodes. The gradual aluminium diffused junctions formed by the above processes may be sharpened by briefly raising the alloying temperature before finally cooling.
Patent GB-375751-A (GB)
Title: Method of making fitting faces
IPC: B23P11/00
Filed: 1930-12-15
Abstract: 375,751. Cast or stamped joints. STAGEL, K., 2, Giradigasse, and DAVID, A., 55, Alserstrasse, both in Vienna. Dec. 15, 1930, No. 37737. Convention date, Dec. 16, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 83 (i) and 83 (iv).] In a cast or stamped joint between an outer member 1 or 3, and an inner member 2 or 4 of a greater coefficient of expansion, the outer member is formed with a series of conical bearing surfaces a<1>, b<1>, c<1> or f<3>, g<3>, h<3>, the generators of which intersects in a common point. The inner member is cast, the outer member being heated to a temperature to allow necessary clearance d, or pressed into shape, leaving clearances i so that the two members remain in contact only on the conical surfaces. A joint may be formed of three elements with progressively decreasing coefficients of expansion.
Patent GB-1124826-A (GB)
Title: Programme controls for the automatic production of thin-layer electrical components
Inventor: ARDENNE MANFRED VON
IPC: G05B19/40
Filed: 1965-09-06
Abstract: 1,124,826. Eroding metal by electron beams. KERAMISCHE WERKE HERMSDORF VEB. 6 Sept., 1965, No. 37945/65. Heading B3V. [Also in Division G3] In a programmed control arrangement for the production of thin-layer electrical components, the thin-layer to be worked is situated on a substrate mounted on a transport block by which the thin layer is brought into a centred position in the work chamber of a charge carrier beam apparatus beneath a probe, defined as that portion of a charge carrier beam which enters the deflector units from the last electron-optical lens and the focus of which lies on the component to be produced. As shown, an operation control 2 alternately controls square wave pulse generators 3, 4 providing a high frequency for bringing the probe to the working position and a selectable working frequency determining the cutting speed of the probe. The pulse generators move the probe in a step-wise fashion through counting circuits 9, 10, digital to analogue converters 11, 12 and deflection amplifiers 13, 14, feeding deflection units X, Y. The existence of the working cycle frequency through a control 6 and deflection amplifier 7 causes a barrier plate 5 to deflect the probe into the work field. The starting and final co-ordinates are set up on switches 8 and, through the control 2, coincidence with the count in counters 9, 10 initiatos the starting of a new operation or programme. During the working of the thin-layer, the resistance is measured by a resistance measuring device 1 and when the desired value is reached the programme being carried out is interrupted by  the operation control 2 and the next programme initiated. A rejection due to bad contact with the substrate, the desired value not being reached or anirregular thin layer causes ; a transport control 16 to remove the transport block. It is stated that inductors or capacitors can be produced by the provision of the appropriate measuring devices.
Patent GB-1356677-A (GB)
Title: Filter
IPC: B01D29/09
Filed: 1971-08-13
Abstract: 1356677 Moving band filter CLARKSON INDUSTRIES Inc 13 Aug 1971 [18 Nov 1970] 38190/71 Heading B1D In a filter wherein machine tool coolant forms a pool 46 above a band of paper or cloth filter medium 42 supported on an intermittently moving endless conveyor 24 and is filtered by being drawn through the medium into suction compartment 48, compartment 48 is divided by, partition 56, into chambers 58, 60, the medium- 42 passing first over chamber 60 wherein the suction is comparatively low, so that a relatively small flow of imperfectly filtered coolant enters chamber 60 while filter cake builds up on the medium and ensures that clean filtrate is drawn into chamber 58 where the suction is greater. Air suction pump 64 maintains a reduced pressure in chamber 58, and adjustable valves (118, 124) which connect chamber 60 to chamber 58 and to atmosphere enable the pressure in chamber 60 to be adjusted. Motor 34 moves conveyor 24 in response to variations in the pressure in chamber 58 or in the height of liquid in pool 46, drawing clean filter medium from roll 44 and discharging dirty medium and solids separately at 72, 74. Dirty coolant flows into compartment 78 of tank 12, and pump 88 conveys it through conduit 92 to pool 46, whose level is limited by overflow 96. Imperfectly filtered coolant from chamber 60 is returned by conduit 110 to compartment 78, and clean filtrate from chamber 58 pases down conduit 98 to compartment 80 from which pump 104 returns it to user.
Patent GB-345295-A (GB)
Title: Pantograph current collecting apparatus
IPC: B60L5/22
Filed: 1929-12-14
Abstract: 345,295. Collectors for electricity. FISCHER, G., 3, Nagymez÷ Utca, Budapest, Dec. 14, 1929, No. 38350. [Class 104 (iii).] Pantograph frames for supporting a plurality of bows a<1>, a<2>, a<3> have their upper sides d<1>, d<2> hinged to an horizontal rod c, the tilting frames b<1> and their springs r<1> being secured to the rod. The springs are secured to guides h<1> adjustably mounted on the rod c. The sides d<1>, d<2> are connected by arms coupled by a common link l, or by discs coupled by cables or chains. Each frame b<1> may be secured to the rod c by two springs, one on each side of the frame.
Patent GB-1531207-A (GB)
Title: Method of renewing the working surfaces of metal electrodes for electrolysis cells
IPC: B23P6/00
Filed: 1977-09-20
Abstract: 1531207 Renewing working surfaces of electrodes HERAEUS ELEKTRODEN GmbH 20 Sept 1977 [22 Sept 1976] 39036/77 Heading C7B The plate-like working surfaces of metal electrodes e.g. perforated or expanded metal sheets 1, secured by spot welds 4 to sheet metal members 3 having an electrical connection to a metal rod 2 (current terminal), are renewed by releasing the welded connection between the working surfaces and sheet metal members, punching or boring out the points at which welded connection is formed, providing the working surfaces removed with new active coatings and reconnecting to the same members by spot welding. Resilient connecting members 5 may be used. Sheets 1 and members 3 may be of Ti, Nb or Ta. Specification 1435683 is referred to.
Patent GB-1107761-A (GB)
Title: Improvements in or relating to motor driven winding mechanism for motor vehicle windows
Inventor: HENDERSON CYRIL
IPC: E05F15/16
Filed: 1963-10-03
Abstract: 1,107,761. Window-operating mechanisms. SMITHS INDUSTRIES Ltd. 5 Oct., 1964 [3 Oct., 1963], No. 39076/63. Heading E2M. A vehicle door window winding mechanism comprises a reversible electric motor, Fig. 6 (not shown) mounted inside the door and connected by a flexible drive shaft, Fig. 9 (not shown) to a worm 28 Fig. 1 of a reduction gearing mounted on a rotatable shaft 14 of the window operating mechanism, a wormwheel 20 driving the shaft 14. The gearing is enclosed in a casing made up of metal sheets 21 and 22 pressed out at 24 to hold the worm and its bearings, the bearing ferrule 32 being adapted to hold one end of the flexible drive shaft, its other end being held in a bush 49 fixed to the motor shaft cover 46. Limit switches 78 and 79, Fig. 11, are used to stop the motor when the window reaches its fully open or closed position. The switches include followers at the end of arms 82 and 93 which engage a spiral groove 81 secured to the shaft 14, electrical contacts 98, 95 and 98a, 95a being actuated through a series of linkages from the followers. In the circuit, Fig. 10, the windings of the motor are indicated at 58 and 59 and connected to contacts 63, 64 of a reversing switch. Two spaced blades 65, 66 of the switch are connected to earth and are movable into and out of engagement with contacts 69, 70 which are connected to commutator brush 71. If blade 65 is moved to contact 63 and blade 66 to contact 70 current will flow through coil 58 and the motor will rotate ,in the direction of the upper arrow. Movement of the blades in the opposite direction will reverse the direction of the motor.
Patent GB-1478469-A (GB)
Title: Ansamycin antibiotics produced by a species of micromonospora
IPC: A61P31/04
Filed: 1974-09-06
Abstract: 1478469 Antibiotic compositions containing ansamycins PFIZER INC 6 Sept 1974 [9 Jan 1974] 39106/74 Heading ASB [Also in Division C2]  Pharmaceutical compositions having antibiotic activity comprise, as active ingredient, a mixture obtained by cultivating Micromonospora lacustris sp. nov. Routien (ATCC 21975) or a mutant strain (ATCC 21974) under submerged aerobic conditions in an aqueous nutrient medium containing an assimilable source of carbon and nitrogen until substantial antibiotic activity is obtained and separating the antibiotic products, or a component of the said mixture which is 3-methylthiorifamycin S or SV, or a hexahydro derivative of the said component, in admixture with at least one pharmaceutically acceptable carrier. The antibiotic mixture contains rifamycin S and SV. The compositions may be administered orally or parenterally as tablets, suspensions, elixirs or solutions.
Patent GB-1075479-A (GB)
Title: Railway car for transporting refining vessels
IPC: C21B3/10
Filed: 1964-09-25
Abstract: 1,075,479. Railway vehicles; undercarriages. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. Sept. 25, 1964 [Sept. 27, 1963], No. 39257/64. Heading B7L. A railway car for transporting and lifting refining vessels, e.g. top-blowing crucibles, from a working stand to a relining stand and vice versa, comprises a chassis having wheels 13a, Figs. 2-3, and connected to a carrier 14 for the vessel T, Fig. 4b, the carrier and chassis together being rotatably connected through ball-bearings 23 with a frame 10 having longitudinal side members 11 and end members 12, the corners of the frame being provided with hydraulic jacks, e.g. 16, 18, Fig. 3, adapted to engage the ground, whereby the frame 10, the chassis and carrier 14 may be lifted from the railway track G. The chassis and carrier may then be rotated through an angle whereafter they can then be lowered on to a railway track crossing the track G. After retraction of the jacks into the frame 11, 12, the vehicle can be moved along the second track.
Patent GB-1159044-A (GB)
Title: Heat-Contractible Bobbin.
IPC: D06B23/04
Filed: 1967-08-25
Abstract: 1,159,044. Heat-contractible bobbins. NIHON SENSHOKU KIKAI K.K. and OSAKA BOBBIN K.K. 25 Aug., 1967 [1 Sept., 1966], No. 39299/67. Heading B8M. A heat-contractible bobbin 1 is made of a thermoplastic sheet material shaped into cylindrical or conical form with the opposite edge portions 2 overlapping, the thickness of the sheet decreasing progressively from a central portion 1<SP>1</SP> where it is largest to the edge portions 2 where it is smallest . On shrinkage of yarn wound on the bobbin during a heat treatment thereof, the overlap of the edge portions 2 increases. The bobbin is preferably formed with a plurality of through-holes for the passage of steam or liquid, the cross-section area of the holes decreasing from the ouside wall to the inside wall of the bobbin. The holes in the region of the overlap are extended peripherally compared with the remaining holes to prevent these holes being closed during contraction of the bobbin.
Patent GB-936548-A (GB)
Title: Process for extracting fermentation liquids
IPC: C12P27/00
Filed: 1961-11-02
Abstract: Gibberellines are obtained from a culture medium containing them, by adding to said culture medium a hydroxide or salt of an alkaline earth metal to precipitate acids and impurities in said medium, filtering, removing excess precipitant from the filtrate by passage over a cation-exchange resin, and thereafter adsorbing said gibberellines on an anion-exchange resin.  As precipitant, baryta water may be used.  Specification 936,549 is referred to.