baber/WOPTO huggingface dataset:
Patent GB-1269844-A (GB)
Title: Method of measuring dynamic impedance
IPC: G01R31/26
Filed: 1969-11-13
Abstract: 1,269,844. Testing dynamic impedance. INTERNATIONAL BUSINESS MACHINES CORP. Nov. 13, 1969 [Dec. 9, 1968], No.55558/69. Heading G1U. To indicate the dynamic impedance of an electrical component e.g., the input impedance at the base of a transistor, a reference waveform of varying amplitude is applied via respective electrically identical paths to a test node to which the component is connected and to a reference node, and the time difference between the waveforms at the test and reference nodes respectively reaching a given value is measured. Pulses with a very fast rise time (about 1 nanosec) are generated at 10 and applied through a transmission line 12 to two identical transmission systems 14, 16, matched to the line 12 and thence via programmable switches 24, 26 to respective test heads 30, 28. The component under test is connected to one head e. g., 28, while the other is left unconnected. The waveform pulse at node A in the unconnected line is unchanged, while that at B has its rise delayed in accordance with the impedance of the component. The two waveforms are applied to the inputs T1, T2 of a comparison oscilloscope 20 and the time difference between the 90% levels of the pulses assessed. Digital readout of this time difference may be provided to a computer interface. The system may be used to compare two components, the second being connected to the test head 30. If the impedance is capacitive, a plot of delay time against capacitance may be used to assess the value of unknown capacitors.
Patent GB-1403058-A (GB)
Title: Refining of low phosphorus pig irons
IPC: C21C5/34
Filed: 1972-12-07
Abstract: 1403058 Converter steel-making EISENWERK-GES MAXIMILIANSHUTTE mbH 7 Dec 1972 [7 Dec 1971] 56438/72 Heading C7D A method of refining a low-phosphorus pig iron melt in a converter comprises blowing a suspension of powdered lime in O 2  into the melt through the inner of a pair of coaxial nozzles projecting through the lining of the converter below the melt surface, a liquid or gaseous hydrocarbon being blown through the outer nozzle as a protective. Suitable hydrocarbons include CH 4 , C 3 H 8 , C 4 H 10 , C6H6, alcohol, kerosene, natural gas, coke oven gas, and light fuel oil, preferably up to 10% of the O 2 . Prior to the above process, lime may be blown in with N 2  or Ar, again surrounded by a hydrocarbon, to effect desulphurization. The lime may be added in batches, or continuously in varying amounts. A fluxing agent, e.g. fluorite, feldspar, bauxite may also be added to the O 2  stream.
Patent GB-1220020-A (GB)
Title: Mechanism for controlling flow of liquid to a vacuum-treating vessel
Inventor: GROSKO JOHN ALEXANDER
IPC: C21C7/10
Filed: 1969-11-19
Abstract: 1,220,020. Discharging molten metal. USS ENGS & CONSULTANTS Inc. 19 Nov., 1969 [6 Dec., 1968], No. 56690/69. Heading F4B. The flow of molten steel from the bottom outlet 20 of a tundish 12 into the inlet 15 of a vacuum degassing vessel 10 beneath it, is selectively prevented or allowed by the interposition of slidable gates therebetween, the gates either being solid or having nozzle apertures extending therethrough. The gates are slid into sealing engagement with the tundish 12 and a spring urged inlet seal member 23 of the vessel 10, into alignment with the openings 20, 15 by a reciprocable ram 33 carried on the vessel 10 thereby knocking away a gate already positioned between them. A number of the gates are carried on a tray 36 reciprocable transversely of the ram 33 by means of a driven rack 37, to bring each gate when required into alignment with ram 33. To allow tundish 12 to be removed from vessel 10 without destroying the vacuum in the latter, a gate 47 composed of separable upper and lower parts is interposed between them by ram 33. Flanges (not shown) on the separable upper part engage between beveled guide bars 52, 54 provided on the tundish, below its outlet opening 20 so that the separable upper part is lifted away with the tundish and seals off its outlet 20 when the tundish is removed from the vessel. The lower part of the gate 47 remains in position over the inlet seal member 23, being drawn against it by the vacuum, and so retains the vacuum in the vessel 10.
Patent GB-1293595-A (GB)
Title: Improvements in or relating to fluid filters
IPC: B01D29/00
Filed: 1969-11-20
Abstract: 1293595 Fluid filter with detachable connections MARVEL ENG CO 20 Nov 1969 [21 Nov 1968] 56786/69 Heading BID The housing of a filter element 3 is surmounted by a head 1 having a fluid inlet 4 and a fluid outlet 5 which are surrounded by flat external surfaces 6, 7, respectively, the head being secured to two connection-forming members 20 by bolts 22 which pass through four apertures in each member 20 and are threaded into holes in the flat surfaces 6, 7 of the head. In this way different connection-forming members can be fitted on a universal head. Each member 20 is attached to a support, pipe or tube by means of screw-threaded sockets 30. A by-pass valve 52 may be installed in the housing by punching out holes in wall 41, and attaching the valve to the wall by means of rod 50. Spring 53 urges the valve against wall 41 thereby closing the holes therein during normal operation of the filter.
Patent GB-1328645-A (GB)
Title: Internal combustion engine supercharging system
IPC: F02B75/02
Filed: 1970-12-02
Abstract: 1328645 Supercharging I C engines BROWN, BOVERI & CO Ltd 2 Dec 1970 [4 Dec 1969] 57287/70 Heading F1B In an I. C. engine supercharging system, in which exhaust tracks 21..25 Fig.1 from at least five engine cylinders discharge to an exhaust gas driven turbine through nozzles 14 leading into a common manifold 18 and mixing tube 19, each exhaust pressure wave is divided into a primary pressure wave and a secondary pressure wave and each exhaust pressure wave is modulated by the secondary pressure waves of one or more of the preceding exhaust pressure waves so as not to exceed a permissable back pressure in the exhaust tract of a cylinder being scavenged at the time of generation of the waves. The system may also include a flow reversal tube (16), Fig.3 (not shown) connected at one end to the manifold through a nozzle and closed at its other end.
Patent GB-1217799-A (GB)
Title: High pressure electric discharge lamp
Inventor: WAYMOUTH JOHN FRANCIS
IPC: H01J61/20
Filed: 1969-11-25
Abstract: 1,217,799. Metal-vapour lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 25 Nov., 1969 [29 Nov., 1968], No. 57696/69. Heading H1D. The arc tube of a high pressure lamp has a filling including I, Hg, Sm and Sc, the I and Hg being present at an atomic ratio of from 0À10 to 0À85 and the Hg being present in sufficient quantity to be completely vaporized at the operating temperature of the arc tube and to form a restricted arc therein. The mercury may be present as the metal or as the iodide in an amount of 2À5 x 10<SP>-5</SP> to 4À1 x 10<SP>-5</SP> gram atoms per cm. of arc length. An atomic ratio of I to Hg of 0À45 is preferred. The Sm and Sc may be present in a total quantity of 0À046 x 10<SP>-5</SP> to 1À1 x 10<SP>-5</SP> gram atom per cm. of arc length, the optimum value being about 0À22 x 10<SP>-5</SP>. The atomic ratio of Sm to Sc may be from 1¢:1 to 1: 2. An alkali metal, preferably Cs, which forms a low vapour pressure iodide, may be added in a quantity of 5À25 x 10<SP>-7</SP> to 6À8 x 10<SP>-5</SP> gram atom per cm. of arc length to stabilize the arc and to ensure that at room temperature there is little or no iodine present in the vapour state. A rare gas such as He, A, Ne, Kr or Xe at a pressure of about 25 torr. is added to facilitate starting. The lamp is otherwise as described in Specification 1,028,228.
Patent GB-1379605-A (GB)
Title: Image generation and recording
IPC: H01J17/49
Filed: 1971-12-20
Abstract: 1379605 Image generation and recording OWENS-ILLINOIS Inc 20 Dec 1971 [23 Dec 1970] 58962/71 Heading H4F [Also in Division G2] A gas discharge panel, of the type comprising a gaseous medium between a pair of dielectric sheets backed respectively by X and Y addressing grids of parallel electrodes to define a matrix of selectively operable light emitting elements, is operated to provide a selected optical image which may be in the visible region and which is recorded on a photo-sensitive surface. As particularly described, the photo-sensitive surface may be that of a material exhibiting persistent internal polarization, e.g. zinc and/or cadmium chalcogerides, anthracene, chrysene, alkaline earth halides or a sulphur-tellurium mixture, whereby with a simultaneously applied electric field the image is stored as an electrostatic pattern. Alternatively, it may comprise photoconductive zinc oxide pigment on a paper substrate. The substrate may be coated with a dielectric to retain the charge image. The image being recorded may be viewed from the other side of the panel and it is possible to provide different optical emissions for viewing and recording by the use of luminescent phosphors and different gaseous medium mixtures. The image may consist of numerals, letters, binary words, a television or radar display, or facsimile.
Patent GB-1378770-A (GB)
Title: Filter means for separating particles from flowing liquid
IPC: B01D29/00
Filed: 1971-12-22
Abstract: 1378770 Filters; centrifugal separators SIEMENS AG 22 Dec 1971 [24 Dec 1970] 59695/ 71 Headings B1D and B2P A filter for steam power plant cooling water comprises an inward flow cylindrical filter element 2 in a casing having tangential inlet 7 and tangential outlet 9, 13 on the upstream side of the element, and an axial outlet for filtrate, the inlet 7 being adjacent to an impervious, cylindrical or conical extension of element 2 and the inner surface of the element carries at least one helical vane 11 which prevents elongated impurities caught in the element openings from entangling. Valves 12, 14 enable continuous or intermittent bleeding of a proportion of incoming water through outlet 9, together with impurities washed from the element. Outlet 9 opens into a slot 13 extending the height of the casing. Figs. 1, 2 (not shown) illustrate a horizontally oriented version, wherein the inlet 7 and outlet 9 open into opposite ends of the casing.
Patent GB-1429030-A (GB)
Title: Method for manufacturing memory matrices constituting storage stacks
IPC: G11C5/08
Filed: 1973-12-27
Abstract: 1429030 Magnetic storage arrangements VYCHISLIT TSENTR SIBIR OTDELENIA AKAD NAUK SSSR 27 Dec 1973 [27 Dec 1972] 59727/73 Heading H3B In assembling a magnetic storage matrix, a pile of apertured cores 2 is threaded on each of a plurality of parallel row wires 3, and an elastic adhesive sheet 4 is moved into contact with each of the piles, the sheet being subsequently stretched so as to separate the cores forming the piles and move them into spaced matrix positions as shown in readiness for column wire threading. The row wires are secured to a frame 12 supporting fixed and movable anchorages 15, 16 for the adhesive sheet against which the core piles may be pressed manually by a block, Fig. 3 (not shown). The columns of spaced cores are wired either singly or together by advancing coiled column wires 7 progressively through their apertures, the coils being formed and advanced at mechanisms 21. After column wiring a sense winding 8 is manually threaded through all the cores.
Patent GB-1373628-A (GB)
Title: Conduit
IPC: F16L9/12
Filed: 1971-12-14
Abstract: 1373628 Plastics conduits J R STONES 14 Dec 1971 [17 Dec 1970] 60103/70 Heading F2P A conduit has one or more longitudinally extending formations thereon which enables it to be releasably connected to a complementary conduit having one or more complementary longitudinally extending formations thereon in side by side arrangement therewith, the formations permitting longitudinal movement between the conduits when connected together whilst maintaining their connection. As shown the conduit consists of a resilient plastics body 12 having a pipe 10 therein, the body 12 being rebated at 14 to form a shoulder 18. The shoulder 18 has short-tenons 22 of dovetail shape spaced apart along the length thereof and correspondingly shaped recesses 24 of greater length than the tenons 22 spaced there-between. The body 12 also has a recess 26 and spaced apart holes 28 the arrangement be such that a pair of such conduits can be arranged as shown in Fig. 3 with the tenons, of one engaged in the recesses of the other. The conduits can be fixed to a wall 30, for example, by fixing means through corresponding holes 28 and other pairs of conduits can be added alongside if required. The conduits may be fixed to the outer surface of a wall or covered by a plaster skim.
Patent GB-1452338-A (GB)
Title: End-capped polymeric tin mercaptides for stabilising polyvinyl chloride
IPC: C08K5/58
Filed: 1973-12-31
Abstract: 1452338 Polymeric tin mercaptides PENNWALT CORP 31 Dec 1973 [4 Jan 1973] 60207/73 Headings C3R and C3P The invention comprises end-capped polymeric tin mercaptides of formula where R<SP>1</SP> is hydrogen or alkyl, R<SP>2</SP> is alkylene and R<SP>3</SP> and R<SP>4</SP> are alkyl, having at one or other or both ends of the polymer chains groups of formula -SR<SP>5</SP>COOR<SP>6</SP>, where R<SP>5</SP> is alkylene and R<SP>6</SP> is alkyl. They are obtained by (i) reacting a cyclohexane dimercaptan of formula with a 1 to 99 mole per cent excess of a tin compound of formula R<SP>3</SP>R<SP>4</SP>SnO or R<SP>3</SP>R<SP>4</SP>SnX 2 , where X is halogen or carboxylate, and (ii) reacting the product so formed with 0À5 to 1À5 moles of a mercaptoester of formula HSR<SP>5</SP>COOR<SP>6</SP> for each excess mole of the tin compound employed in step (i). The end-capped polymers are added to polyvinyl chloride as thermal stabilizers. In examples beta-mercaptoethyl-3 (and 4)-mercaptocyclohexane is reacted wth dibutyltin oxide, dioctyltin oxide and dimethyltin oxide and 2,9-p-methanedithiol is reacted with dibutyltin oxide, the polymers obtained then being end-capped by reaction with isoctyl thioglycolate and isooctyl 3-mercaptopropionate.
Patent GB-608288-A (GB)
Abstract: 608,288. Change-speed gearing. BROCKHOUSE ENGINEERING (SOUTHPORT), Ltd., and GATISS, A. L. March 12, 1946, No. 7772. [Class 80 (ii)] In a change-speed gear where toothed members are engaged or disengaged, one member being driven from a prime mover without the interposition of a mechanical clutch, the gear change is effected by an operating member made in two parts 100, 104, capable of relative movement, means 115 being provided for resisting such movement until the force required to engage the toothed' members exceeds that for silent engagement, whereupon the relative movement between the two parts 100, 104 actuates means for disabling the prime mover to substantially synchronise the toothed members. A rod 100 is actuated by a lever 102 and has its other end 103 adapted for sliding movements in a member 104, the end of which is connected to the arm 105 of a change-speed gear such as described in Specification 608,287. The end 103 carries a contact 108 spaced between a pair of contacts 110, 111 insulated from the member 104 and passing through a sleeve 113 which forms an abutment for the spring 115, the other end of which abuts the adjusting means 118 or 120. If the stress between the arms 102, 105, on engaging a toothed member, exceeds a predetermined value corresponding to the strength of the spring 115, the contacts 108 and 111 will close and by suitable means, such as disabling the ignition system, will momentarily slow the prime mover to allow silent engagement. In a modification, two springs are employed to act either with tension or compression in the members 100, 104. The change-speed gear of Specification 608,287 is also shown.
Patent GB-1298148-A (GB)
Title: Complexes of cobalt in the oxidation state iii, and processes for preparing the same
Inventor: NERI CARLO
IPC: C09B57/10
Filed: 1970-12-30
Abstract: 1298148 Organocobalt (III) complexes SNAM PROGETTI SpA 30 Dec 1970 [30 Dec 1969 (2)] 61890/70 Heading C2J Complexes of general formula where L<SP>1</SP>-L<SP>4</SP> represent ligand groups which may belong to the same or different ligand molecules, A is a divalent hydrocarbyl radical which may be substituted and X is -NO 2 , - CN, CH 3 CO- or -CHO are prepared by reacting (a) a complex of formula or with a compound H-A-X where B is a Lewis base and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are -H or substituted or unsubstituted alkyl or aryl, or (b) a complex Co<SP>II</SP>(L<SP>1</SP>L<SP>2</SP>L<SP>2</SP>L<SP>4</SP>) with H-A-X in the presence of oxygen and an alcohol. The radical A may be -CH 2 -; -CH 2 -(CH 2 ) n -; or  where n is from 1 to 10 and R<SP>1</SP> and R<SP>2</SP> are -H, alkyl or aryl. Numerous mono-, bi- and tetradentate ligands are specified for L<SP>1</SP>-L<SP>4</SP>, bis- (salicylaldehyde)-ethylenediamine being used in the examples.
Patent GB-722636-A (GB)
Abstract: 722,636. Self-sealing condensers. BOSCH GES., R. Oct. 3, 1952 [Oct. 4, 1951], No 24792/52. Class 37. In a " self-sealing condenser the metallic coatings on the dielectric material are formed of a metal having a specific conductivity greater than that of zinc and have a thickness between 0.05 and 0.01 microns. Aluminium and mag nesium may be used. Specifications 25126/46 (as open to inspection under Sect. 91), 453,939 [Group XXXV], 480,713 and 722,635 are re ferred to.
Patent GB-2011236-A (GB)
Title: Coulter device for direct seed drills
IPC: A01C7/20
Filed: 1978-12-08
Abstract: In a coulter arrangement for drills, a first (leading) rotatable, dished, slot- cutting disc 12 (Fig. 4 shows a plan view) has disposed behind it an off-set second (trailing), rotatable, dished, disc 14 which intercepts the soil displaced by the first disc and ensures that it tumbles into the slot cut by the first disc. A third disc 20 can be located behind the first disc to remove trash and/or guide seed into the slot cut into the soil by the first disc. In a preferred arrangement pairs of first discs, 12, 13 with or without third discs, 20, 21 are mounted on one girder or frame member 11, whilst pairs of second discs 14, 15, 18, 19 are mounted on the next girder or frame member 16, 17 alongside, the arrangement being an alternating one. Seed is supplied through tubes 32, 33 from a hopper. An alternative embodiment (Figures 1-3) comprises only the first and second discs (2, 3). <IMAGE>
Patent GB-2040102-A (GB)
Title: A clamping mechanism for C-cores of inductive devices
IPC: H01F27/26
Filed: 1979-01-05
Abstract: C-core halves 6 of a transformer etc are clamped together by a pair of clamp plates 1, 2 which are forced together by screws 3 extending through flanges 4 on the plates. The screws are located in open corners or rebates between the core or cores and the winding or windings 5. Projections 9 on the plates locate the C-core halves and accommodate deviations resulting from manufacturing tolerances. Clamping plates may be L-shaped as in Fig. 6 (not shown), or generally planar and joined by side plates (39) as in Fig. 7a (not shown). <IMAGE>
Patent GB-2025852-A (GB)
Title: Improvements in or Relating to Keyboards for Actuating Push Switches
IPC: H01H13/70
Filed: 1979-06-13
Abstract: A keyboard is provided for actuating push switches 7, 8 of, for instance an electronic price computing weighing machine. Push elements 9, 10 and electrical components are disposed in a casing 2, 3, 4 which is covered by a flexible sheet 11. Push keys 15, 16 are associated with the push elements 9, 10 and actuate the push elements. The entire underside of each push key 15, 16 is in surface contact with the sheet 11. The push elements 9, 10 and the push keys 15, 16 are interconnected by components 14 which extend through the sheet 11 so that the sheet is clamped between the elements 9, 10 and the keys 15, 16. Each push element 9, 10 supports, on the same side of the sheet 11 thereof, a seal plate 12, 13 whose surface is at least as large as the push key underside. <IMAGE>
Patent GB-2029429-A (GB)
Title: Pigment Dispersants for Coating Compositions
IPC: C09D7/45
Filed: 1979-08-30
Abstract: Pigment dispersants comprise the polymerization product of (i) an alkyl methacrylate having from 3 to 8 carbon atoms in the alkyl group, (ii) a hardening monomer selected from a styrene, methyl methacrylate, ethyl methacrylate and mixtures thereof, (iii) an ethylenically unsaturated carboxylic acid selected from acrylic acid, methacrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid and mixtures thereof or a monomer having a double bond alpha- beta to a carbonyl group and which provides carboxyl functionality when reacted with water, alcohol, amine or anhydride, (iv) a monomer having a double bond alpha-beta to a carbonyl group and at least one hydroxyl group or a monomer which provides such groups when further reacted with an acid or an epoxide, and (v) a compound providing an amine or amine salt functional moiety. The dispersants are useful for dispersing pigments in coating compositions containing a wide variety of film- forming resins.
Patent GB-2030940-A (GB)
Title: Independent vehicle-wheel suspension arrangement
IPC: B60G11/14
Filed: 1979-09-12
Abstract: In an independent vehicle-wheel suspension arrangement comprises an axle sub-structure 1 with means for securing it resiliently to the vehicle superstructure and transverse wheel- guiding members 3, 4 which are pivotably connected to the substructure and swingable about axes 10, 11 extending in the longitudinal direction of the vehicle, the lower arm 4 is abutted against the sub-structure by a helical spring 13, and the swing axis 11 of the arm 4 is inclined upwardly and forwardly, while the spring 13 is inclined rearwardly and upwardly. As seen in side elevation, the axis of the spring is preferably perpendicular to the axis 11 in the design position of the suspension arrangement. The arrangement thereby prevents pitching movements during take off while maintaining constraint-free resilient abutment of the sub-structure 1 against the superstructure. <IMAGE>
Patent GB-2035301-A (GB)
Title: 2-Bromobenzyl esters of alkenyl cycloproprane carboxylic acids and their use as pesticides
IPC: A01N53/00
Filed: 1979-09-17
Abstract: 2-Bromobenzyl esters of formula I   <IMAGE> where R<1> is hydrogen, fluorine, chlorine, bromine or iodine, R<2> is fluorine, chlorine, bromine or iodine, X is hydrogen, cyano, ethynyl or thioamido, n is an integer from 1 to 4 and the or each Y is independently selected from hydrogen, fluorine, chlorine, bromine or iodine exhibit pesticidal, e.g., insecticidal and acaricidal, activity. They may be obtained by conventional ester formation reactions. Pesticidal compositions and their use as pesticides are also described.
Patent GB-2035734-A (GB)
Title: Circuit arrangement for multiplying a binary number by an analogue variable in the measurement of properties of work materials by means of ultrasonic sound
IPC: G06G7/16
Filed: 1979-09-21
Abstract: A circuit arrangement for multiplying a binary number 6 by an analogue variable 5 comprises a first counter (1) connected to a first pulse generator (3) having a fixed frequency and a second counter (2) connected to a second pulse generator (4) the frequency of which is determined in dependence upon the analogue variable and a circuit (7) for initiating counting by both counters of the pulses produced by the respective pulse generators. Counting by the second counter (2) is terminated after a period determined by the time taken by the first counter (1) to count a number of pulses equal to the binary number 6 which is to be multiplied by the analogue variable 5, the count in the second counter (2) at the termination of counting being equal to the said binary number multiplied by the ratio of the frequency of the second pulse generator (4) to that of the first pulse generator (3). <IMAGE>
Patent GB-2063688-A (GB)
Title: Bingo
IPC: A63F3/06
Filed: 1979-10-04
Abstract: A series of tickets each uniquely numbered and bearing a number corresponding to the numbers used in the bingo game whereby an additional winner may be provided by stipulating prior to the commencement of the game that the additional winner will be the holder of a number corresponding to a number selected at a predetermined point in the game.