baber/WOPTO huggingface dataset:
Patent GB-1259124-A (GB)
IPC: F23R3/26
Filed: 1968-12-06
Abstract: 1,259,124. Boundary layer control. DEFENCE SECRETARY OF STATE FOR. 27 Nov., 1969 [6 Dec., 1968], No. 58178/68. Heading F2R. [Also in Division F1] The invention relates to combustion apparatus including a flow control device comprising a duct, a flow restrictor within the duct and having a throat and a divergent portion downstream of the throat, there being means for applying motion to a surface of the flow restrictor so as to control the boundary layer within the restrictor. In Fig. 1 a restrictor in the form of a Venturi device 2 is disposed within a tubular duct 1 through which fluid flows as indicated by arrows A to a combustion chamber (nob shown). Openings 5 are formed in the wall of the divergent part of the restrictor and suction is applied through the openings 5, space 3 and duct 4 as indicated by arrow B thus preventing flow separation at the divergent wall. Such flow separation is indicated at the lower part of the Figure. The invention is described with reference to its application to combustion equipment of a gas turbine engine, the equipment comprising an outer air casing 6 and an inner flame tube 7, a restrictor 2 being mounted in the primary air inlet duct 1 of the flame tube, openings 5 being provided in the divergent wall of the restrictor as in Fig. 1. A fuel injector 11 and swirl vanes 10 are mounted in the duct 1 downstream of the restrictor. In Fig. 4 (not shown), a baffle 12 is disposed around the fuel injector leaving an annular opening for passage of air. In Fig. 7 the combustion equipment is of the annular type comprising an annular flame tube 32, 33 disposed within an annular air casing 30, 31. An annular restriction formed by ring members 35, 36 is disposed at the inlet of the flame tube, the members 35, 36 being formed with openings 37, 38 for the application of suction through lines 41, 42. A baffle 43 is disposed downstream of the restriction. In Fig. 6 the invention is shown applied to a fuel vaporizing tube 1 of J-shape, the vaporizing tube being mounted in the wall 20 of a flame tube.
Patent GB-1264771-A (GB)
IPC: E04B1/68
Filed: 1970-01-01
Abstract: 1,264,771. Expansion joints. SILENT CHANNEL PRODUCTS Ltd. 30 Dec., 1970 [1 Jan., 1970], No. 118/70. Heading E1B. A method of sealing grooves or spaces between adjacent sections 3 of a concrete floor, roof or road comprises arranged longitudinal 7, cross over 8, angle and T-plan rubber sealing strips as a gridwork over the gaps, the sealing strips being interconnected by U-section elements 16a secured in or formed integrally with hollow channel portions of the sealing strips, and applying a screed over the raft and over flanges 13 and 20 of the sealing strips. The screed need not reach to the top of the sealing strips a space being left for vinyl tiles. When raft sections 3 are at different levels or the depth of screed is to exceed the depth of the channel ports, the strips are secured on an insert of wood or mortar 33. The grooves between the raft sections are filled with a dry filler 6, e.g. sugar-cane fibre, cork, expanded rubber or polystyrene.
Patent GB-1266017-A (GB)
IPC: G06F1/06
Filed: 1969-05-22
Abstract: 1,266,017. Timing pulse generators. OMRON TATEISI ELECTRONICS CO. 22 May, 1969 [5 June, 1968], No. 26107/69. Heading H3T. [Also in Division G4] A timing pulse generator comprises a plurality of shift registers of the type in which each stage comprises an input section to which data is applied in response to a read-in pulse #1 and an output section to which the data is transferred in response to a memory pulse # 2 . Each register receives a data pulse input in response to the absence of data in all its stages except the last and the read-in pulses are fed to the registers after the first in response to an output from the last stage of the preceding register. As described, the registers use field effect transistors, storage being effected by the gate capacitance (Fig. 2, not shown).
Patent GB-1288526-A (GB)
IPC: H01L25/03
Filed: 1971-05-06
Abstract: 1288526 Semi-conductor devices ITT INDUSTRIES Inc 6 May 1971 [13 May 1970] 13464/71 Heading H1K Semi-conductor diodes 7 of a bridge rectifier are mounted, e.g. by soldering, between metal contact strips 3 integral with a support strip 1 and the cross-members of two T-shaped metal contacts 4 the stems of which are spot-welded at 12 to opposite faces of the support strip 1. After encapsulation of the assembled bridge rectifier in plastics material the support strip 1 is removed along the line 10. As shown a plurality of bridge rectifiers are thus manufactured using a single support strip 1. The T-shaped contacts 4 are preferably shaped so that their stems are coplanar with the contact strips 3 except where they are attached to the support strip 1. Each T- shaped member preferably includes, a bend in its cross-member to accommodate strain, and the contact strips 3 preferably have cut-out portions or projections for locking into the plastics envelope.
Patent GB-1289145-A (GB)
IPC: D04H1/4266
Filed: 1969-09-03
Abstract: 1289145 Papermaker's felt FILZTUCHVERWALTUNGS GmbH 1 Jan 1970 [3 Sept 1969] 43549/69 Heading DIR One more fleeces of natural or synthetic fibres, such as wool and nylon 66 fibres, are needled to a woven cotton or synthetic fibre carrier web and the carrier web subsequently disintegrated by further denser needling. The fibres of the fleece may be of non-round cross-section, e.g. polygonal and may be heatfixed under tension by hot calendering of the finished product or a water insoluble elastic adhesive may be applied to one or both sides.
Patent GB-1289245-A (GB)
IPC: A47L11/20
Filed: 1971-04-20
Abstract: 1289245 Suction cleaners PROGRESSELEKTROGERATE MAUZ & PFEIFFER KG 20 April 1971 [21 April 1970] 10285/71 Heading A4F In a suction cleaner in which dust raised by a motor driven rotary cleaning tool 2 is drawn by a suction fan 5 through a dust collecting container, the latter is detachably connected to a cover 12 for an opening in the cleaner housing, and disposed in a path for the suction air-flow from the cleaning tool 2 to the suction fan 5. The dust collecting container may comprise a textile dust bag 9, Fig. 3 (not shown), a paper filter bag 17, Fig.4 (not shown) or a textile dust bag lined with a paper filler.
Patent GB-1289534-A (GB)
IPC: H01J17/49
Filed: 1969-09-23
Abstract: 1289534 Gas discharge display tubes MATSUSHITA ELECTRONICS CORP 23 Sept 1969 [25 Sept 1968 7 Oct 1968] 46691/69 Heading H1D A glow discharge tube for code display comprises at least two stacks of cold cathodes spaced apart by the interposition of a respective insulating frame (not shown) between adjacent layers, and anode means (not shown) disposed facing the stacks of cold cathodes, each of said cold cathodes comprising a code-forming portion 11-18 arranged to produce a luminous code when a voltage is selectively applied between each cold cathode and said anode, and a lead portion 31, 32, 33, connected to the codeforming portion thereof, a plurality of display units t 1 , t 2 , t 3  being formed by arranging said code-forming portions 11-18 into a plurality of mosaic pattern regions and providing one said anode means for each of said regions, the whole of each cold cathode, with the exception of the code-forming portion, being sandwiched between the respective insulating frames so as to be shielded from the said anode means. The electrodes are mounted in an envelope including a base and a viewing window and are connected to cathode terminal pins and an anode terminal pin sealed through the base. The envelope is filled with inert gas. The insulating frames are made of mica or ceramic. The anode may be opaque and located between the cathode assembly and the base or may be a transparent mesh located between the cathode assembly and the viewing window. The units t 1 , t 2  and t 3  are separated by shields supported in seats in the insulating frames.
Patent GB-1290002-A (GB)
IPC: B01D61/36
Filed: 1969-12-01
Abstract: 1290002 Supports for semi-permeable membranes; evaporators IONICS Inc 1 Dec 1969 [24 Dec 1968] 6099/71 Divided out of 1290001 Headings BIB and B1X Semi-permeable membranes (not shown), on either side of a compartment to be maintained at low pressure, are supported by an assembly comprising a porous support member 16 resting within a frame 80, the support member being made up of two finely-porous sheets 81 flush with the frame, two more coarsely porous back-up sheets 82 in contact with the inwardlyfacing sides of the sheets 81 and, disposed between the back-up sheets, a sub-support 83 having unimpeded passageways for drawing vapour from the compartment into pipe 22, e.g. by means of a vacuum pump. The subsupport 83 has a plurality of supporting points 85, as shown in Fig. 2, and may be made of expanded stainless steel. Such support members are suitable for use in an apparatus comprising a series of stacked compartments in some of which liquid is evaporated (e.g. from an aqueous solution) through semi-permeable membranes into adjacent compartments maintained at low pressure: in such an apparatus a frame 80 surrounds each compartment at low pressure. Sheets 81 may be made of a fine mesh or woven screen of metal or plastics. The pore size of the back-up sheets 82 is preferably 3 to 6 times as large as the pores of sheets 81.
Patent GB-1290424-A (GB)
IPC: H01F1/11
Filed: 1970-09-18
Abstract: 1290424 Chromium dioxide E I DU PONT DE NEMOURS & CO 18 Sept 1970 [18 Sept 1969] 44642/70 Heading C1A Chromium dioxide is prepared at a reaction temperature of above 225 C. from a reaction mixture containing at least one chromium oxide in which the valence of chromium is other than 4 and water wherein the water in the reaction mixture is removed before the mixture is cooled below 225 C. The water may be removed from the reaction mixture by flushing the mixture with an oxidizing gas, e.g. oxygen while maintaining reaction pressure. The oxidizing gas converts any CrO(OH) which may be present into CrO 2 . The water may also be removed by reducing the pressure on the mixture to below reaction pressure (e.g. to atmospheric) and possibly subsequently flushing the mixture with an oxidizing gas at atmospheric pressure. The reaction mixture may comprise a mixture of chromium (VI) and chromium (III) oxides. An iron modified chromium dioxide may be produced by adding Fe 2 O 3  to the reaction mixture. Chromium dioxide of particle size 0À03-0À1 microns by 0À08-1 micron is produced in Example 2.
Patent GB-1290499-A (GB)
IPC: H04Q3/54
Filed: 1969-12-22
Abstract: 1290499 Automatic exchange systems WESTERN ELECTRIC CO Inc 22 Dec 1969 [27 Dec 1968] 62290/69 Heading H4K A main distribution frame comprises a twostage, full-accessibility, non-blocking (by rearrangement) switching network. The crosspoints are preferably ferreed relays. The use of a switching network instead of manually wired cross-connections allows a much denser arrangement of incoming lines and corresponding line circuits to be obtained without inhibiting ready transposition of lines and line circuits and at the same time allowing conventional test desks simple access to the lines and line circuits. Rearrangement of the MDF in respect of active lines is not allowed. In Fig. 1A, any line L may be connected to any line circuit by operating the relevant crosspoints in the main distribution frame network under the control of a manually operated teleprinter. 101. The latter transmits signals in mout-of-n code which are received on relay stores in character-recognition circuit 102 and then passed to a relay store incorporating a binary counter in memory and control circuit 103. This. circuit maintains a record of the current cross-connections in the MDF and also supplies control signals to the MDF cross-point relays for altering the cross-connections. As shown, subscriber S1 is connected to his line circuit 106 via an auxiliary circuit 107 (path B, facility 107, path E) which may be a long line dialling impulse repeater. When it is required to dispense with the auxiliary circuit due to improvements in S1's line, commands from the teleprinter cause line L1 to be connected directly to line circuit 106 path A) and the auxiliary circuit to be connected to output 2 (path F). Testing.-A test desk 109 (automatic or manual) may be connected to any line and/or line circuit using a test junctor 110 in an exactly analogous way to the use of the auxiliary circuit 107. Other MDFs whether in the same exchange or not are controllable by the circuits shown.
Patent GB-1297734-A (GB)
IPC: C22B11/02
Filed: 1971-04-19
Abstract: 1297734 Recovery of silver BATTELLE DEVELOPMENT CORP 19 April 1971 [9 March 1970] 22809/71 Heading C7D A process for recovering silver from a silvercontaining manufactured organic material such as photographic film, printed circuit boards, or photographic paper, comprises pyrolizing the material in a hot non-oxidizing gas to form a silver-containing carbon residue and a pyrolitic off-gas mixture, burning the carbon residue in an oxidizing atmosphere to form a silver-containing ash and a non-oxidizing gas, and separating the silver from the ash. The material is fed to the rotary air lock valve 15 of a retort 10, by a conveyer 17. The chamber 11 of the retort has an oxidizing zone 20, and a contiguous reduction zone 21, gas is supplied to the chamber above or below a grate 12 by a line 22, and gas is removed from the retort by a line 23. Air and water vapour are supplied to line 22 via valves 33, 38, and are preheated by the off-gas mixture passing through line 23 and into a heat exchanger 30. Thermocouples 35, 36, 37, are provided for indicating the working temperatures at the different stages of the process. In operation, the process is started by placing a carbonaceous material on the grate 12, loading film on top of this material, passing natural gas into a chamber 30 through line 40 and igniting with air from line 28, so that the heat from air and water vapour passing through line 22 burns the carbonaceous material. Hot gases from the latter pyrolyze the film so as to reduce the film to a silver-bearing carbon residue and produce the desired off-gases. Valve 40 is now closed enabling the process to be self-sustaining with the addition of air through line 28. Grate 12 may be vibrated, or opened and closed periodically or continuously. The ash mixture is removed for subsequent separation of the silver from the ash, by a valve 14 and falls into a container 26.
Patent GB-1315931-A (GB)
Title: Educational toy or game
IPC: G09B1/06
Filed: 1969-01-17
Abstract: 1315931 Toys KEY FACTS (UK) Ltd 17 April 1970 [17 Jan 1969] 2901/69 Heading A6S [Also in Divisions B6 and G5] An educational toy comprises a baseboard depicting a particular scene, and separate characters illustrated by printing in colour and associated with the scene, each being removably attachable to the baseboard. The characters are cut-outs in a plastics sheet, which is mounted on a backing sheet. The backing sheet is of paper, cardboard, or plastics. The contact surfaces of the characters, the backing sheet, and the baseboard are of plastics or cast-coated paper; the smoothness of such surfaces enables the characters to be adhered to the baseboard or backing sheet simply by being pressed in to desired positions.
Patent GB-1324645-A (GB)
Title: Electrical interconnecting arrangements
IPC: H01R12/18
Filed: 1970-01-12
Abstract: 1324645 Electric couplings PLESSEY CO Ltd 8 Jan 1971 [12 Jan 1970] 1345/70 Heading H2E Superposed boards 1, 2 of a plated wire memory stack assembly are interconnected by means of flexible insulating substrates 3 having printed thereon conductors such as 4, the conductors on adjoining substrates being held in mutual contact by one or more spring clips 8 Each substrate 3, which may be of glass fibre, carries on one surface which is bonded to the corresponding board 1, 2 a ground plane layer 7, layers 7 on adjoining substrates being interconnected by clip(s) 8 which are of beryllium copper, plated on contact surfaces with Au, Pd &c , as are conductors 4, 7. Each clip 8 comprises two arms 9, 10 riveted together at 11 so that before use the arms are in mutual resilient engagement.
Patent GB-1325561-A (GB)
Title: Soap bars
IPC: C11D13/08
Filed: 1971-04-19
Abstract: 1325561 Moulded soap tablet UNILEVER Ltd 19 April 1971 [18 March 1970] 13009/70 Heading B5A [Also in Division C5] A multicoloured soap tablet having a face with a central mottled area with coloured striations radiating therefrom, is formed by the extrusion, from mixed soap pellets of different colours, of a multicoloured longitudinally striated bar which is cut into billets, which are then stamped in the longitudinal direction, with the sectional area of the billet perpendicular to the direction of stamping being between 25% and 50% of the plan area of the tablet to which it is increased by the stamping. The soap tablet may be made from a non-superfatted base, optionally containing some non-soap detergent, but is preferably made from a superfatted base. E amples are given wherein a billet having longitudinal blue and white stripes is stamped, from a round billet into a round or rectangular tablet, from an oval billet into a rectangular tablet, and from a square billet into a rectangular tablet.
Patent GB-1331497-A (GB)
Title: Propulsion systems for ships
IPC: B63H5/08
Filed: 1971-09-29
Abstract: 1331497 Arrangement and disposition of propeller shafts STONE MANGANESE MARINE Ltd and SWAN HUNTER GROUP Ltd 29 Sept 1971 [29 June 1970] 31471/70 Heading B7V A ship propulsion system comprises three propellers 2, 4, 6 one of the propeller axes being coincident with the longitudinal axis of the system and the outer parts of each propeller overlap the outer part of at least one other propeller when viewed in the axial direction of the system. The wing propellers, 4, 6 diverge with respect to the main shaft axis 8 in the direction of the ship's bow, but may be parallel with the main shaft or converge towards the bow. In another embodiment, Fig. 3 (not shown) one wing shaft is parallel to the main shaft and the other wing shaft is inclined. Propeller steering may be effected by the wing propellers which may be of variable pitch and can be operated independently in forward or astern drive.
Patent GB-1333383-A (GB)
Title: Vehicle radio aerials
IPC: H01Q1/12
Filed: 1970-06-16
Abstract: 1333383 Aerials J COLE 5 Oct 1970 [16 June 1970] 13556/73 Divided out of 1333381 Heading H4A The description is similar to that of the parent Specification but the claims relate to an aerial comprising a length of conductive foil associated with an elongated adhesive zone for attaching said length of foil to a surface, the width of the foil being not less than the width of the adhesive zone.
Patent GB-1339156-A (GB)
Title: Data processing systems
IPC: G06F15/80
Filed: 1971-09-10
Abstract: 1339156 Data processing systems INTERNATIONAL BUSINESS MACHINES CORP 10 Sept 1971 42237/71 Heading G4A An array of data handling units executes instructions by passage of data through appropriate sequences and combinations of units, the operation of the units being controlled by an array of control units which control both the execution of an instruction and the execution starting point of an instruction according to the next instruction to be executed, the instructions in process of execution and, for each instruction being executed, the particular stage in the execution sequence which has been reached, whereby interleaved execution of instructions, some of which require repeated and exclusive use of a data handling unit, may be carried out. The array of control units may comprise a chain of interconnected content addressable functional memory units of the kind disclosed in Specification 1,186,703, and the data handling units may be similar memory units taking their functions from the tables loaded into them. Operation with branch instructions and interrupt is briefly described.
Patent GB-1342713-A (GB)
Title: Imidazole derivatives
Inventor: JACK D
IPC: C07D233/54
Filed: 1971-05-12
Abstract: 1342713 Azo compounds ALLEN & HANBURYS Ltd 12 May 1971 [3 June 1970] 26812/70 Heading C2C Novel compounds of Formula I (in which each of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is C 1-6  alkyl, C 2-6  alkenyl, halogen, aralkyl or aryl optionally substituted by hydroxy, alkoxy, halogen, nitro or trifluoromethyl, and R<SP>1</SP> and R<SP>2</SP> may also be hydrogen, and any two adjacent R groups together with the two atoms of the imidazole ring, may form a 5, 6 or 7 membered carbocyclic or heterocyclic ring, and X is a physiologically acceptable anion) are prepared by oxidation of compounds of the Formula II for example by means of chlorine or bromine, followed by optional conversion of an atom or group R<SP>1</SP> e -R<SP>4</SP> into another such atom or group. Compounds of the Formula II are generally prepared via acetyl-hydrazine intermediates according to the following reaction scheme 1 - Amino - 3 - methyl - 2,5 - diphenylimidazolium iodide is prepared by reacting 1-amino-2,5- diphenylimidazole (itself prepared by reacting ethyl benzimidate with 2-acetylhydrazine to form 1 - acetyl - 2 - benzimidoyl - hydrazine, reacting this with phenacyl bromide to form 1 - acetylamino - 2,5 - diphenylimidazole and hydrolysing this compound) with methyl iodide. The bromide and picrate salts are prepared from the iodide salt. 1 - Amino - 3 - methyl - 2 - phenylimidazo[1,2-a]pyridinium bromide and 1- amino - 2,3 - dimethylbenzimidazolium bromide are prepared by hydrolysis of the corresponding 1 - acetylamino compounds. 1 - Amino - 3- bromo - 2 - phenylimidazo[1,2-a]pyridinium bromide is prepared by bromination of 1- amino - 2 - phenylimidazo[1,2-a]pyridinium bromide. 1 - Amino - 5,6,7,8 - tetrahydro - 2- phenyl - imidazo[1,2-a]pyridiniuin bromide is prepared by hydrogenation of 1-amino-2- phenylimidazo[1,2-a]pyridinium bromide. 1 - Acetamido - 3 - methyl - 2 - phenyl - imidazo[1,2-a]pyridinium bromide is prepared by reacting 2 - (2 - acetylhydrazino)pyridine with 2 - bromopropiophenone. 1 - Acetamido - 2,3- dimethylbenzimidazolium iodide is prepared by reacting 1 - acetamido - 2 - methylbenzimidazole with methyl iodide.  2 - (2 - Acetylhydrazino)pyridine is prepared by reacting 2-hydrazinopyridine with acetic anhydride. 5,6,7,8 - Tetrahydro - 2 - phenylimidazo- [1,2-a]pyridine hydrobromide is prepared by thermal decomposition of 1,1<SP>1</SP>-azobis-[5,6,7,8- tetrahydro - 2 - phenyl - 1H - imidazo[1,2-a]- pyridinum] dibromide. Pharmaceutical compositions having neuromuscular blocking activity, comprise a compound of Formula I together with a pharmaceutically acceptable carrier. The compositions may be administered parenterally.
Patent GB-1347843-A (GB)
Title: Interlinkable articles of furniture
IPC: A47C1/124
Filed: 1970-08-13
Abstract: 1347843 Fixing chairs together in rows PEL Ltd 2 Aug 1971 [13 Aug 1970] 39037/70 Heading A4U Articles of furniture such as tubular metal chairs comprising inverted U-shape seatsupporting frames 10, 11 are linkable side-byside by engagement of a U-shape fastening member 14, 15 welded to adjacent legs at one side of a chair, in a loop fastening member 13 welded to adjacent legs at the opposite side of an adjacent chair. Elements 14, 15 include two right-angle bends and are spaced in the fore and aft direction of the chair, and the loop 13 is inclined to the horizontal, the fastening members being disconnected by raising one chair while tilting it on an axis parallel to the fore-and-aft direction. In modifications, the elements 14, 15 are unconnected at their outer ends and are received in spaced apertures provided in each of two members or as a U-shaped member or annulus, or the fastening members are provided on corresponding front or rear legs of adjacent articles of furniture.