baber/WOPTO huggingface dataset:
Patent GB-420552-A (GB)
Title: Machines for coating or covering welding rods used for welding operations
IPC: B23K35/40
Filed: 1933-12-14
Abstract: 420,552. Extrusion machines. GILLESPIE, J., 105, Randolf Road, Jordanhill, Glasgow. Dec. 14, 1933, No. 35167. [Class 87 (ii)] A machine for coating welding rods with flux comprises a pump A supplied with the pasty coating material by a hopper H, the pump being connected by a pipe K to an extrusion head J, Figs. 2 and 4, through which the rod is drawn by rollers q, r, and means being provided for varying the relative rates of feeding of the rod and the coating material. The piston rod C of the pump is provided with a screw thread which engages with a coacting screw thread formed in the end cover of the pump, the rod C being rotated by a motor U through a beltdriven pulley W, the shaft Y of which carries a worm Z engaging a worm wheel E keyed to the rod C. The extrusion head J is provided with end covers or guides L, N provided with holes L<1>, N<1>, the welding rod being passed into the hole L<1> which is provided with projecting springs M to centre the rod and to accommodate rods of varying thicknesses. The cover N is provided at the inner end with holes O communicating with the inlet pipe K, and with a series of spring tongues Q. The shafts n, s of the rollers q, r which draw the rod through the head J are geared together by wheels t, u, and the shaft n is driven from the pulley W through an adjustable friction wheel d, a shaft b, bevel gears f, g and a worm j.
Patent GB-1402761-A (GB)
Title: Information retrieval from film
IPC: G06K17/00
Filed: 1972-07-27
Abstract: 1402761 Sensing records EASTMEN KODAK CO 27 July 1972 [28 July 1971] 35174/72 Heading G4M A microfilm, Fig. 3, has positive and/or negative film type portions 31b, 31c containing information images and associated indicia 13, 14 indicating the film type, and the indicia are sensed, e.g. by spaced photo-cells Z, B to produce coded signal patterns indicative of the film type. The indicia 13 are image position marks and each indicium 14 indicates the position of a code word 15 identifying the associated image. Fig. 3, shows the sequences of outputs from photo-cells A, B when sensing the various parts of the film strip. Transitions in the signals A, B are detected at 118, Fig. 2, to shift the signals A, B through a 3-stage dual rank shift register 120. The contents of the shift register 150 are used to produce code word timing signals TM and forward and reverse image signals DMF, DMR from the indicia 14, 13 respectively, and also to detect at 116 the type of film currently being sensed to complement, if necessary, the code words 15 supplied from buffer 111. Conversion from excess 3 code to BCD may be effected at 114 prior to comparison with a stored search code word entered on a keyboard. A numbers code words may be compared for each image, the results being stored in comparison logic 30 in which manually set switches select which comparison results are to signify a "hit". On detecting a hit, the film drive motor is stopped, the forward pulses DMF obtained during sensing of negative film image position marks 13 or positive film inter-mark gaps being counted at 80 druing over-run of the film. On reversal of the film, counter 80 is stepped backwards by pulses DMR until it reaches zero whereupon the film drive is stopped with the selected image in a projection/copying position.
Patent GB-866112-A (GB)
Title: An improved method and device for measuring doses of thermal neutrons
IPC: G01T3/00
Filed: 1958-11-04
Abstract: 866,112. Actuation of switches. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 4, 1958 [Nov. 8, 1957], No. 35337/58. Class 38 (5). [Also in Group XL (a)] A switch responsive to a given integrated neutron, flux (dose) comprises a sensitive element 1 which flexes upwards in proportion to the dose received, and a pair of electrical contacts 13 which are closed when the element 1 flexes by a given amount. Closing of the contacts 13 may operate an indicator and at the same time energize a heating element to heat the container 12 enclosing the switch, heat having the effect of annealing the sensitive element 1 and restoring it to its initial position. The element 1 may be a plate of glass containing 60% boron trioxide and may be shielded from neutron bombardment from below by a neutron absorbing screen, for example of cadmium.
Patent GB-823992-A (GB)
Title: Converter steel with deep drawing properties
IPC: C22C38/06
Filed: 1956-11-19
Abstract: A converter steel having a carbon content of up to 0.1% and a nitrogen content of up to 0.066% has added thereto, to improve the deep-drawing properties, 0.12-1.0% of aluminium.  Preferably the aluminium content is at least 15 times the nitrogen content. The steel may also contain phosphorus up to 0.15% and manganese up to 1.0%.
Patent GB-1358043-A (GB)
Title: Electrical spark gap switch apparatus
IPC: H01T2/02
Filed: 1970-07-21
Abstract: 1358043 Spark gaps UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 July 1971 [21 July 1970] 35388/70 Headings H1D and H1X Spark gap switch apparatus comprises a discshaped electrode 10A connected to a rod 10B for applying a potential difference to initiate an arc and passing through a hole defined by an annular portion of an electrode 8 which overlaps the electrode 10A so as to define a pronounced change in inter-electrode spacing at the periphery of electrode 10A, which periphery has a thickness small compared to the smallest interelectrode spacing, the current flow in the arc and electrode surfaces producing magnetic forces tending to keep the arc away from the said hole. The discharge may be initiated across the gap 12 by (a) suddenly raising the potential on one electrode, (b) applying a voltage less than the striking voltage and then pulsing one electrode, (c) suddenly reducing the spacing or the gas pressure between the electrodes, or (d) changing the gas filling to one having a lower breakdown voltage, e.g. from compressed air to argon or from SF 6  to air. The magnetic field of the arc causes it to move to the gap 14 or, if the arc current or duration is insufficient, the arc will remain at the gap 12. In either case the arc will not move to or through the narrow gap 16. In an alternative open arrangement (Fig. 2, not shown) electrode 8 is a flat ring.
Patent GB-1069924-A (GB)
Title: Improvements in or relating to signal translating feedback circuits
IPC: H01L29/00
Filed: 1964-08-28
Abstract: 1,069,924. Electric solid state devices; circuit assemblies. HUGHES AIRCRAFT CO. Aug. 28, 1964 [Dec. 2, 1963], No. 35428/64. Headings H1K and H1R. [Also in Division H3] A field effect transistor used in an amplifier (see Division H3) comprises a glass base member 32 on to which is deposited source and drain electrodes 12, 14 a layer of semi-conductor material 34 an insulating layer of silicon oxide 36 and two or more gate electrodes 16a, 16b insulated from each other so that the flow of majority carriers from the source to the train via the semi-conductor material is controlled independently by the two gates. The semiconductor material 34 may be cadmium sulphide, cadmium telluride, cadmium selenide, zinc sulphide, zinc selenide, zinc telluride, gallium arsenide, gallium phosphide, indium arsenide, indium phosphide, or indium antiminide, or more generally materials of the A III , B v  or A II , B vi  types. The source electrode 12 and the drain electrode 14 should possess respectively a lower and higher work function than the semi-conductor material. Suitable metals for association with cadmium sulphide are indium and gold respectively other materials suggested are aluminium, silver, gallium, tellurium and cadmium. The gate electrodes 16a, 16b may be of gold the whole device being formed by vapour deposition and masking methods. Fig. 5 (not shown) is an integral circuit formed on a glass base comprising a first field effect transistor (50) having a deposited load resistor load (54) connected to a second field effect transistor (60) having a deposited resistor load (64) connected by a lead (46) to a third field effect transistor (70) having a deposited resistor load (74). Feedback is provided via a deposited lead through a capacitor (82) again formed by vapour deposition to a second gate electrode (58b) of the first transistor. The positive supply is provided through a deposited gold aluminium or copper strip (42) and the negative supply through a similar strip (44) with the interposition of deposited source resistors 67 and 77. The resistors may be formed from nickel chromium films.
Patent GB-1317789-A (GB)
Title: Plastics filter leaf with separator channels
IPC: B01D33/23
Filed: 1970-07-22
Abstract: 1317789 Filter leaves AMETEK Inc 22 July 1970 [24 July 1969] 35520/70 Heading B1D An inward flow filter leaf comprises a flat annular or rectangular member 11 of polypropylene, which may be foamed, having on both sides a regular array of cylindrical projections 14 (Fig. 7 not shown) which support filter medium 16 and define filtrate drainage channels therebetween. Fig. 6 shows the annular leaf, intended for a rotary filter, wherein the member 11 is clamped on a hub 18, having two annular grooves 25 communicating with the two sides of member 11 and draining the filtrate through holes 26 into axial grooves 27 inside the hub. The outer edges of medium 16 are retained in a peripheral groove 20 by caulking 21 and a two-part cover strip 22 of channel section (Fig. 1, not shown). Figs. 8 to 10 (not shown) represent a rectangular leaf whose lower edge comprises a channel section filtrate drainage member (33) with an outlet connection (36).
Patent GB-1506986-A (GB)
Title: Porous lightweight particulate aggregates and process of manufacture
IPC: C04B18/02
Filed: 1976-08-26
Abstract: 1506986 Lightweight particulate aggregate J WALLS-MUYCELO 26 Aug 1976 [27 Aug 1975] 35592/76 Headings C1H and C1M A porous lightweight particulate aggregate, for use in concretes, mortars, building blocks and other building elements, comprises expanded and vitrified low alkalinity particles of a material composed of an alkali metal silicate having an M 2 O/SiO 2  ratio of 1:2 to 1:4 where M is an alkali metal, silica in an amount of from 0À1 to 50 wt. percent of said alkali metal silicate, an alkaline earth metal silicate in an amount of from 0À1 to 200 wt. percent of said alkali metal silicate, and suitable fillers and additives (e.g. boric acid, alkali metal tetraborate, carbon, metal carbides and potassium oxide) to impart specific properties to the aggregate, said expanded and vitrified low alkalinity particles having a density of not more then 60 g/dm<SP>3</SP> and a compression strength of up to 275 kg/cm<SP>3</SP> and having an expansion ratio of up to 15 times their original collapsed volume. A blowing agent (e.g. wheatflour or potassium nitrate) in an amount of from 0À1 to 30 wt. percent of the said alkali metal silicate may also be added.
Patent GB-1110955-A (GB)
Title: A hydraulic control system for mine roof supports
IPC: E21D23/16
Filed: 1965-08-20
Abstract: 1,110,955. Advancing mine roof supports. KLÍCKNER-WERKE A. G. Aug. 20, 1965 [Aug. 21, 1964], No.35750/65. Heading F1P. In a mine roof support system wherein a series of self-advancing roof support assemblies are arranged in groups a, b and each assembly comprises an A-frame and a B-frame connected together by a hydraulic advancing ram 7, the pressure supply for extending the props of the frames and for operating the ram 7 originates from two pumps x, y connected to lines I, II which cross over between groups to pass alternately through the A-frames of a group and the B-frames of the next group. The operation of each group of support assemblies is controlled by an associated assembly of fourway valves 1-4. The valves 1, 2 are normally in a position in which they communicate the pressure supply from the pumps x, y to their associated frames A, B, and are operated to allow advance of their associated frames. If valve 2 of group a is operated (as shown) the B-frames thereof are connected to a return 8 and pressure liquid from the line I is directed to the valve 3 and no longer flows to the alternate frames of subsequent groups. These frames, however, continue to support the roof since liquid is retained therein by non-return valves. The valve 3 is normally in a closed position wherein it connects the pressure release lines of the frames A, B to exhaust 10. To cause release of the B-frames of group a the valve 3 is operated and to cause it to advance valve 4 is then operated to connect both ends of the ram 7 to the pressure supply I. During advance of the B-frames of group a the valve 1 thereof directs the full pressure in line II to the A-frames of group a and to the alternate frames of the other groups.
Patent GB-1269691-A (GB)
Title: Fluorinated amides
Inventor: SWEENEY RICHARD FRANCIS
IPC: D06M13/408
Filed: 1969-07-31
Abstract: 1,269,691. Coating. ALLIED CHEMICAL CORP. 31 July, 1969 [1 Aug., 1968 (2)], No. 38570/69. Heading B2E. [Also in Divisions C2 and D1] Oil- and water-repellancy is imparted to substrates, such as paper, textiles, wood, plastics, glass and metal, by applying thereto solutions, dispersions or emulsions of fluorocarbon amides of general formula (I) wherein R f  is a group of general formula wherein each of the groups R<SP>1</SP>, which may be the same or different, is a fluorine atom or a fluoroalkyl group having up to 9 carbon atoms, or two of the groups R<SP>1</SP> together form a fluoroalkylene group having up to 18 carbon atoms, at least one of the groups R<SP>1</SP> being a fluorine atom; each of m and n, which may be the same or different, is 0 or an integer of I to 20, v is 0 or 1 and u is 0 or 1, m+n being 0 to 20, m being at least 1 when v is 0, and v being 0 when m+n+u is greater than 0; M is a hydrogen or fluorine atom, M being a hydrogen atom when n is greater than 0; x is 2 to 6; y is 1 to 4; Z is a hydrogen atom, an alkyl group having up to 6 carbon atoms, a hydroxyalkyl group having up to 6 carbon atoms, an acyl group of formula -CO-R f  or an alkenyl sulphonyl alkyl group of formula wherein each of the groups R<SP>2</SP>, which may be the same or different, is a hydrogen atom, or an alkyl or substituted or unsubstituted aryl group, R<SP>3</SP> is an alkylene, arylene or aralkylene group and p is 0 or 1; and Z<SP>1</SP> is a hydrogen atom, alkyl group having up to 6 carbon atoms, a hydroxyalkyl group having up to 6 carbon atoms, an acyl group as defined above, an alkenylsulphonylalkyl group as defined above, or a group of general formula -C x H 2x NHZ wherein x and Z are as defined above; each of the groups Z and each of the groups Z<SP>1</SP> being the same or different; subject to the provisos that when the fluorocarbon amide contains an alkenylsulphonylalkyl group, (a) none of the Z and Z<SP>1</SP> groups is an alkyl or hydroxyalkyl group, and (b) the fluorocarbon amide also contains at least two groups of formula -CO-R f .
Patent GB-1125982-A (GB)
Title: A fuel element support grid
IPC: G21C3/356
Filed: 1966-08-11
Abstract: 1,125,982. Fuel elements. COMBUSTION ENG. Inc. 11 Aug., 1966 [21 Sept., 1965], No. 36071/66. Heading G6C. A grid for supporting and spacing a bundle of parallel fuel elements comprises thin, elongated metal strips intersecting and forming a plurality of fuel element compartments having four sides formed by portions of the strips, spring means extending from the strips into each compartment from two adjacent sides, the opposite sides being formed as relatively stiff arches. The strips are formed with slots at regular intervals enabling them to be interlocked in " egg crate " fashion. A perimeter strip surrounds the grid and is welded to the strip ends. The strips are bent at the mid-points between the slots to form an undulating configuration, each bend extending outwardly from one compartment to form an arch in an adjacent compartment. Spring means or tabs are punched, cut or otherwise formed from the strips, or formed separately and affixed by welding, and bent outwardly from the plane of the strip along a line parallel to the coolant flow and to the fuel elements. The spring tabs are bent in the direction opposite to that of the arches so as to extend into the compartments adjacent to those that the arches extend into. The ends of the tabs are bent back to provide bends which engage the fuel elements. The perimeter strip is punched out at locations corresponding to the engagement of the strip with the fuel elements to permit local cooling of the fuel element cladding. One or more tie-rods are welded to each of the grids and also affixed to the header plates of the fuel element bundle, as by nuts. These rods retain the fuel bundle together and maintain the grids in position.
Patent GB-835199-A (GB)
Title: Improvements relating to detachable legs for tables and the like
IPC: F16B12/48
Filed: 1958-11-11
Abstract: 835,199. Furniture joints. FOGWILL, P. W.. and CROFT. S. Nov. 11. 1958. No. 36145/58. Class 52(2) Detachable wooden legs have a screwed socket d engaging a screwed stud c<SP>2</SP> on a fixing plate c, the sockets being secured in a cavity in the end face of the leg by an axial wood screw e which can have a serrated head for non-rotational engagement with the socket.
Patent GB-1347123-A (GB)
Title: Process of making a milk coagulating enzyme preparation
IPC: C12N9/58
Filed: 1971-08-02
Abstract: 1347123 Milk coagulating enzymes STAMICARBON NV 2 Aug 1971 [6 Aug 1970] 36270/71 Heading C3H [Also in Division A2] A milk coagulating enzyme is obtained by cultivating a micro-organism of the species Mucor lamprosporus, especially Mucor lamprosporus Lendner CBS 11808 or M.l. Mehrotra CBS 41167 or a natural or synthetic mutant thereof under standard conditions and then separating the milk-curdling enzyme from the culture medium.
Patent GB-1325780-A (GB)
Title: Method for manufacturing medical articles composed of various synthetic high polymers coated with collagen
IPC: A61L17/14
Filed: 1971-08-02
Abstract: 1325780 Coated medical articles ZAIDAN HOJIN SEISAN KAIHATSU KAGAKU KENKYUSHO 2 Aug 1971 [6 Aug 1970] 36292/71 Heading B2E Medical articles composed of a synthetic high polymer coated with collagen, in which a surface thereof is composed of polyethylene, polypropylene, polyethylene terephthalate, polytetrafluorethylene or silicone resin, are made by subjecting the surface to a spark discharge, coating it with an acidic aqueous solution of collagen, drying at a temperature lower than the denaturation temperature of collagen and irradiating with radioactive rays, electron beam or U.V. rays in an atmosphere having a humidity of more than 75%. The shaped article may be a film, tube, fibre, sponge or container.
Patent GB-1069336-A (GB)
Title: Device for the study of bubble flow within a pipe
Inventor: CHEVALIER HENRI
IPC: G21C17/022
Filed: 1965-08-24
Abstract: 1,069,336. Cooling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE, FRANCE. Aug. 24, 1965 [Aug. 27, 1964], No. 36315/65. Heading G6C. In a nuclear reactor cooled by boiling water, flowing through vertical tubes, the velocity of the vertically moving bubbles is measured electrically by probes mounted in the tube wall. A probe touched by a bubble causes a pulse to be applied to an associated delay line. The delay lines are coupled to coincidence circuits which operate counters. The delay lines each correspond to different bubble velocities and the counter readings provide the velocity distribution function.
Patent GB-1409005-A (GB)
Title: Electronic timepiece
IPC: G09F9/00
Filed: 1973-07-31
Abstract: 1409005 Electronic watches SUWA SEIKOSHA KK 31 July 1973 [4 Aug 1972] 36360/73 Heading G3T [Also in Division H2] In an electronic timepiece, e.g. a wrist watch, having a liquid crystal display panel 9 which is fixed to a base member 13 together with an electronic circuit block 12, 12 , the latter is connected to the display panel by means of resilient contacts 15 which pass through notches 16 in the base member and are guided into position during assembly. As shown the panel 9 is glued to a frame 11 which is screwed to the base 13 on the opposite side from circuit board 12. The contacts 15 are soldered to the board 12 and are deflected during assembly by inclined surfaces (21), Fig. 3 (not shown) of the notches, so as to engage connection strips of appropriate display electrodes 4. The electronic circuitry 12 comprises a conventional oscillator, divider, and distributing circuit.
Patent GB-1405561-A (GB)
Title: Apparatus and  process for electrophoretically coating with  enamel
IPC: C23D5/00
Filed: 1973-07-31
Abstract: 1405561 Electro-phoretic enamel coating MIELE & CIE 31 July 1973 [3 Aug 1972] 36370/73 Heading C7B In the electro-phoretic coating of iron and steel articles from an aqueous enamel slip, the workpiece is anodic and immersed in the slip and one or more cathodes are each separated therefrom by a diaphragm impermeable to enamel and permeable to water and cations only when an electric current passes, there being means in the cathode compartment for removing excess electrolyte (i.e. water and cations) which pass through the diaphragm during coating. Each cathode chamber may have an overflow outlet in the upper third of its height.
Patent GB-1118880-A (GB)
Title: Improvements in or relating to the oxidation of olefins to epoxides
Inventor: JONES KENNETH
IPC: C07D301/06
Filed: 1964-09-04
Abstract: Olefins of at least 3 carbon atoms are oxidized to the corresponding olefin oxides by reacting them at a pressure of from 1 to 100 atmospheres and a temperature above 60 DEG  C but below that at which explosion might occur, in the presence of an organic peroxide as initiator and of an acid material, with a mixture of a secondary alcohol and oxygen, and regulating the pressure and temperature conditions in such a way that at least part of the reactants are kept in the liquid phase, the proportion of oxygen to olefin being outside the explosion limits and the hydrogen ion activity in the reaction mixture being such that when a sample thereof is diluted with an equal volume of water the pH value is 1 to 5.5, at least some of the acid material being a carboxylic acid or a carboxylic anhydride. Examples describe the production of propylene oxide from propylene, the peroxide being isopropyl peroxide or tertiary butyl hydroperoxide, the carboxylic acid being acetic acid and the secondary alcohol isopropyl alcohol.
Patent GB-1286410-A (GB)
Title: Drive arrangements
Inventor: MORT WILLIAM STUART
IPC: F16H7/00
Filed: 1970-07-28
Abstract: 1286410 Belt tensioning mechanism BRITISH LEYLAND TRUCK & BUS DIVISION Ltd 14 July 1971 [28 July 1970] 36550/70 Heading F2Q In an internal combustion engine, a cooling fan 3 is carried in a mounting 8 which is slidable along fixed guides 4 and is driven from the engine by a belt 6, the distance between the fan mounting 8 and engine being maintained by a tie-rod 7 which is adjustable in length in order to vary the tension of the belt 6.
Patent GB-875301-A (GB)
Title: Improvements in or relating to adjustable inductance devices
Inventor: DODD LEONARD JOHN
IPC: H01F17/04
Filed: 1959-10-28
Abstract: 875,301. Inductances. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. May 5, 1960 [Oct. 28, 1959], No. 36563/59. Class 38 (2). The inductance of a coil 2 wound on a former 1 is adjusted by movement of the screwed ferrite core 6 which is held against accidental rotation in its adjusted position by a spring-retaining member 8. The member 8 fits into a rectangular section hole in core 6 and has ears which engage the inside of former 1. It is shaped so that it can be used as a screwdriver to adjust core 6. The former may be of polytetrafluorethylene loaded with nylon. The inductor is provided with ferrite cap members 3, 4 and a screening can 5.