baber/WOPTO huggingface dataset:
Patent GB-838155-A (GB)
Title: Improvements in and relating to swim suits and bathing costumes
Inventor: BURDALL REGINALD JUSTICE
IPC: A41D7/00
Filed: 1957-12-02
Abstract: 838,155. Swim suits. BURDALL & SON Ltd., J. W. Dec. 2, 1958 [Dec. 2, 1957], No. 37505/57. Class 141 A swim suit is provided with slots 16 through which a decorative band 22 may be threaded, and with a backing strip located behind the slots. The band 22 may extend between two vertical rows of slots on the front of the garment through a loop 21 as shown or around the neck as a halter strap, or it may pass over the shoulder between slots in the front and back of the garment. Alternatively the slots may be disposed vertically or obliquely.
Patent GB-821266-A (GB)
Title: A process for increasing the surface friction of polyamide yarns
IPC: D06Q1/00
Filed: 1956-12-13
Abstract: Threads and yarns of synthetic linear polyamides are treated with a dispersion of a fine grained polyamide powder in a solution or emulsion of a polyamide adhesive.  The yarns or threads may be composed of polycaprolactam, polyhexamethylene - adipamide or poly - o  - amino - undecanoic acid and may be in the form of twisted or untwisted endless yarns or monofils or cut staple.  The dispersed polyamide may be of the same or different material as the threads and may swell in the adhesive, and may be of mixed polyamides consisting of two or three different polyamide-forming components.  The adhesives may be solutions of alcohol-soluble mixed polyamides, polyamides from dilinolenic acid and diamines made soluble by subsequent treatment with formaldehyde, or methylol or alkoxymethyl polyamides; adhesives from polyisocyanates; mixtures of resorcinol and pyrocatchol with propionic aldehyde; polyvinyl acetate, polyvinyl formal, polyvinyl butyral and phenol-aldehyde adhesives.  The dispersion may also contain a protective colloid, e.g. a non-ionic condensation product of ethylene oxide, or a dispersing agent.  In examples: (1) poly-e -caprolactam yarn is treated with a solution of a polyamide from dilinolenic acid and ethylene diamine in a toluene-isopropanol mixture in which is suspended a powder of poly-e -caprolactam; (2) polycaprolactam yarn is sized with an aqueous emulsion of polyvinyl acetate having poly-e -caprolactam dispersed therein, after which it is heated to 300 DEG  C.; (3) a monofil of polyhexamethylene adipamide is treated with a methanol solution of a resorcinolpropionic aldehyde adhesive having dispersed therein a powdered mixed polyamide of hexamethylene adipamide and caprolactam. Specification 612,227 is referred to.
Patent GB-920016-A (GB)
Title: Treatment of water
IPC: C02F1/52
Filed: 1959-11-10
Abstract: Calcium silicate or its components is fused and the molten compound is quenched in sea water or a solution containing magnesium salts so as to form a coating and reduce its activity. The product is dried, crushed and sized.ALSO:Fused and quenched calcium silicate is used to treat water which has been pretreated by usual methods. Chlorination, coagulation sequestering phosphating and control of pH with sulphamic acid or calcium sulphamate are described.
Patent GB-951977-A (GB)
Title: Improvements in or relating to electrical lampholders
Inventor: HUGHES JOHN GEORGE KENNETH
IPC: H01R33/955
Filed: 1961-10-26
Abstract: 951,977. Lamp caps and holders; snap action switches. WARD & GOLDSTONE Ltd. Jan. 28, 1963 [Oct. 26, 1961], No. 38306/61. Headings H2B and H2E. A bayonet type lamp-holder including a switch comprises a transversely slidable push-bar housing a toggle lever acting upon a cross-member which actuates two rocking levers having corresponding ends bearing on the plunger contacts of the holder and the other ends being simultaneously engaged with or separated from contact terminals in the holder body according to the position of the push bar. The insulated push bar 16 moves in a slot 15 and has a sector-shaped opening 18 in which the metal toggle lever 20 is housed. Two conducting rods 25 are located in parallel diametrically extending holes in each end of the nylon crosspin 19 engaged at the centre by the toggle lever and each rod has a conically-shaped lower end engaging in correspondingly shaped recesses of plunger contacts 14. A spring 27 is constrained around each rod between a shoulder near the conical end and the cross-pin so that when the push-bar is moved laterally the toggle lever and thus the rocking levers snap between one extreme position in which the upper ends of the rocking levers contact the supply terminals 31 and another extreme determined by cut-outs 23 of the insulated side plates 22, in which the rods are separated from the contacts. The assembly is held together by screwing on the pendant (or batten) type cap 10 and by a circlip 29.
Patent GB-824001-A (GB)
Title: Electro-erosive wire saw with automatic control
IPC: B23H7/06
Filed: 1956-12-17
Abstract: 824,001. Cutting by electro-erosion. VYZKUMNY USTAV PRE MECHANIZACIU A AUTOMATIZACIU. Dec. 17, 1956 [Dec. 16, 1955], No. 38420/56. Class 83 (4). [Also in Group XXXVIII] Apparatus for profiling a workpiece by electro-erosion comprises a wire saw 15 connected to an electric current source 5 for eroding the workpiece 2; a workpiece support 1 attached to a desk 10 for receiving a drawing of the outline to be cut, and an electro-optical device 13 for scanning the drawing and transmitting the received impulses to a device 14 controlling the relative movement between the saw and workpiece. The wire saw is supported on rollers 6-9. The drawing is illuminated by a light source 11 and the outline on the drawing is projected by an optical system 12 to an electro-optical device 13 such as a photoelectric cell which sends electrical impulses to device 14 controlling the movement of compound slides 3, 4. The speed of movement of the slides and the pressure between the saw and workpiece are also controlled automatically in dependence upon the current in the spark gap.
Patent GB-924098-A (GB)
Title: Improvements relating to the recovery of caprolactam and ammonium sulphate
Inventor: BALLARD DENIS GEORGE HAROLD
Filed: 1960-11-09
Abstract: Ammonium sulphate is recovered from a reaction mixture obtained by nitrosylating a compound containing a cyclohexyl group with a tertiary carbon atom in the ring, in the presence of sulphuric acid, by neutralizing with ammonia to a pH of 6 to 6,5, allowing the mixture to separate into two layers, separating and, after extracting caprolactam from the denser layer, recovering ammonium sulphate therefrom, e.g. by crystallisation.  According to the Provisional Specification, the process is applicable to the mixture obtained by the Beckmann rearrangement process.  Specifications 904,302, 904,413 and 912,034 are referred to.ALSO:Caprolactam is recovered from a reaction mixture obtained by nitrosylating a compound containing a cyclohexyl group with a tertiary carbon atom in the ring, in the presence of sulphuric acid, by neutralising with ammonia to a pH of 6 to 6.5, allowing the mixture to separate into two layers, separating, adding ammonia to both fractions to complete the neutralisation, extracting the caprolactam from both layers using a solvent, and ammonium sulphate is recovered from the denser layer.  The starting material may be hexahydrobenzoic acid which may be removed from the reaction mixture by cyclohexane.  The solvent for caprolactam may be methylene chloride.  According to the Provisional Specification, the process may also be applied to the recovery of caprolactam prepared by the p  Beckmann rearrangement process.  Specifications 904,302, 904,413 and 912,034 are referred to.
Patent GB-1379422-A (GB)
Title: Bell arrangements
IPC: G10K1/10
Filed: 1972-08-18
Abstract: 1379422 Bells SIEMENS AG 18 Aug 1972 [30 Aug 1971] 38527/72 Heading G5J The clapper 2 of a telephone bell strikes opposite edges of a cut-out 4 in the sounding member. One side 3 of the clapper 2 is parallel to the stem 1 and the other side 6 is at an angle. A spring 8 prevents the side 6 from striking the sounding member with full force. The invention is stated to retain the advantage of a prior art trapezoidal clapper, that by adjustment of position the sound volume can be regulated, but to overcome its disadvantage, that because the shapes of the clapper and the cut-out do not match their contacting surfaces become distorted.
Patent GB-918684-A (GB)
Title: Improvements in or relating to stabilised rectifier circuit arrangements
Inventor: CRAFER HERBERT OLIVER
IPC: G05F3/18
Filed: 1960-11-09
Abstract: 918,684. Rectifying. MARCONI INSTRUMENTS Ltd. July 13, 1961 [Nov. 9, 1960], No. 38536/50. Class 38 (2). To stabilize the output voltage of a semiconductor rectifier 6 having a storage capacitor 9 across its output terminals 7, 8, the rectifier has a reverse polarity breakdown voltage of such value that in the reverse half-cycle the inverse voltage across it will cause it to break down and partly discharge the condenser 9. A resistor 5 limits the reverse current through diode 6. In one modification the single rectifier is in parallel with the output terminals, Fig. 2 (not shown), and in another an additional rectifier 16 which has the greater reverse breakdown voltage is connected in parallel with the output terminals to form a voltage doubling circuit, Fig. 3 (not shown).
Patent GB-1317295-A (GB)
Title: Phosphonic acid esters a process for their manufacture and pesticidal preparations containing them
IPC: C07F9/40
Filed: 1970-08-11
Abstract: 1317295 Pesticides containing phosphonic acid esters CIBA-GEIGY AG 11 Aug 1970 [11 Aug 1969] 38651/70 Heading A5E [Also in Division C2] Compounds of formula I where R 1 , R 2 , R 3  and R 4  are C 1-5  alkyl, X is oxygen or sulphur and Y is halogen have insecticidal and acaricidal properties, and may be used as the active ingredients in conventional pesticidal compositions, optionally together with synergistic agents, several of which are specified.
Patent GB-870841-A (GB)
Title: Improvements in or relating to needle and roller bearings
IPC: F16C25/06
Filed: 1958-12-01
Abstract: 870,841. Bearings. SCHAEFFLER, W., and SCHAEFFLER, G., [trading as INDUSTRIEWERK SCHAEFFLER OHG]. Dec. 1, 1958 [Dec. 23, 1957], No. 38658/58. Class 12 (1). A roller bearing comprises an outer race 9 having a track on the inner circumferential surface for rollers 23, and a convex outer surface mounted in a sleeve 11 which has a conical bore. Axial displacement of the outer race 9 relative to the sleeve 11 causes a wedging action resulting in the race contracting on to the rollers and the sleeve to expand and grip the housing 20. The dimensions of the outer race are so arranged during manufacture that the resulting stress due to contraction is equal to or greater than the maximum stress produced by radial loads on the bearing. Axial movement of the outer race is effected by means of a ring 27 fixed to the housing and retaining the sleeve 11, and a further ring 28 threaded into the ring 27 such that rotation of the ring 28 compresses the spring washers 29 and displaces the outer race. Alternatively, a sleeve 6, Fig. 2, having a conical outer surface may be mounted on a shaft 8, the inner race having a convex inner surface. The wedging action of the inner race and the conical sleeve contracts the sleeve on to the shaft and expands the race against the rollers. In a modification, the convex surface of the race is relieved as shown in Fig. 5 and the spaces so formed are filled with a resilient or deformable material 14, the exterior surface presenting a conical shape similar to that of the sleeve.
Patent GB-999675-A (GB)
Title: Method for the connection of reinforcing bars in reinforced concrete construction
Inventor: FRITZ BERNHARD
IPC: E04C5/16
Filed: 1961-10-28
Abstract: 999,675. Reinforced concrete structures. ED. ZUBLIN A.G. Oct. 28, 1961, No. 38662/ 61. Heading E1V. [Also in Division B3] Reinforcing rods 1 in prefabricated concrete structures are connected by placing a sleeve 2 around the ends of the rods and filling the gap with a fluent castable material 5, preferably a metal alloy. The material may be introduced under pressure or in powder form and melted. The sleeve may be removed after the material 5 has set. In a modification the sleeve is of elliptical form.
Patent GB-957826-A (GB)
Title: Thermal switch calibration method and means therefor
IPC: H01H37/12
Filed: 1962-10-12
Abstract: 957,826. Thermal switches; cam-operated switches. KING-SEELEY THERMOS CO. Dot.12, 1962 [Nov. 3, 1961], No. 38665/62. Heading H2B. The initial calibration of the thermally operated contacts of switch generally similar to that disclosed in Specification 895,264 (but without the rapid separation bimetal and without ambient temperature compensation) is performed by rectilinear pressure on a frictionheld member 58 which replaces the adjusting screw in the earlier disclosure. The member 58 is pressed into the hole 56 until lug 58a displaces rigid member 46 to apply torsion to bracket 45 carrying assembly of bimetal 40 and heater strip 42 such that contact 32 engages contact 33. The dial 15a is then set to a preselected temperature and the switch placed in a jig where the bimetal 40 is maintained at the preselected temperature while a tool is inserted through a hole 59 in the front plate 11 to press on the end 58b of member 58, which is thus moved against friction until the contacts 32, 33 just open. The tool is preferably power-driven via an electric clutch which is in circuit with contacts 32, 33 so that the drive ceases immediately the contacts open (Figs. 8, 9 and 10, not shown). The bimetal 40 may be heated by its surroundings instead of heater 40 and it may close instead of open the contacts when heated. In the latter case member 58 is first set to open the contacts and then adjusted to just close them.
Patent GB-877894-A (GB)
Title: Tetra-aza-porphin dyestuffs
IPC: C09B47/08
Filed: 1958-12-01
Abstract: Water-soluble tetrazaporphin dyestuffs are made by reacting a water-insoluble tetrazaporphin containing aromatic rings fused to the pyrrole rings of the tetrazaporphin and further containing at least two tertiary amino groups with at least twice the molar proportion of an omega-halo-N-methylimide of a dicarboxylic acid in the presence of an aliphatic carboxylic acid acting as a solvent.  The tertiary amino groups may form a part of the aromatic ring or may be attached thereto via bridge members.  The water-soluble dyestuffs are converted on heating alone or in the presence of alkali into water-insoluble dyestuffs which do not appear to be the same as the water-insoluble starting-materials. The dyestuffs dye and print textile materials such as those of cellulose, regenerated cellulose, silk, polyacrylonitrile or copolymers containing polyacrylonitrile by treatment with an aqueous solution or printing paste containing the dyestuff followed by a heat treatment and optionally an alkali treatment which may be simultaneous with or subsequent to the heat treatment.  Blue and green shades are obtained.  Specifications 696,590, 717,137 and 724,212 are referred to.
Patent GB-369294-A (GB)
Title: Improvements in or relating to plastic compositions
IPC: C03C27/10
Filed: 1930-12-24
Abstract: The plasticity of compositions containing a cellulose derivative is increased by treatment with a hydroxy-carboxylic acid such as tartaric acid or citric acid.  The cellulose derivative may be cellulose nitrate or an organic ester of cellulose such as the formate, acetate, propionate or butyrate or an ether such as methyl, ethyl or benzyl cellulose.  The plastic compositions may be in the form of powders, sheets or blocks and may contain also other plasticizers or softeners such as dibutyl, dibenzyl or diethyl tartrates, triacetin and diethyl or dibutyl phthalates, solvents or swelling agents such as ethyl alcohol and butyl acetate, synthetic resins compatible with the cellulose derivative such as diphenylol propane-formaldehyde resin, toluenesulphonamide-formaldehyde resin or a fusible and soluble phenol-aldehyde resin prepared in the presence of an acid catalyst, filling materials, pigments and dyes.  In the manufacture of reinforced glass, the plastic sheets alone or together with the adhesive coated glass may be soaked for periods of one second to fifteen minutes in a bath containing the hydroxy-carboxylic acid, or the latter may be added to the plastic sheet at any stage of its manufacture.  In the example a sheet of cellulose acetate containing dibutyl tartrate is dipped in a bath containing tartaric acid, triacetin, butyl acetate and ethyl alcohol, inserted between two sheets of glass coated with an adhesive comprising cellulose acetate, a diphenylol propane-formaldehyde resin compatible therewith and triacetin in a volatile solvent and subjected to heat and pressure.
Patent GB-848487-A (GB)
Title: Bed davenport
IPC: A47C17/23
Filed: 1957-12-16
Abstract: 848,487. Bed settees. THOMAS, J. R. Dec. 16, 1957, No. 39080/57. Class 52(2) In bed settee having a seat section 21 mounted on levers 29, 30 for inversion within the main frame 10 and connected to hinged mattress frame sections 22, 23 which fold for stowage beneath the seat an operating member 78 actuated by the lever 30 engages the bed sections during the folding and unfolding operations to lift and guide them over the front rail 18. As shown the member 78 has also an operating spring 86 which passes over a dead centre position during movement of the member 78 so that it can assist both the folding and unfolding movement. The seat section is connected by links 40, 41 to the intermediate section 22 and the link 41 automatically folds or erects the legs 53, 54 by means of links 47, 64.
Patent GB-1202554-A (GB)
Title: Improvements in or relating to paddle-type polymerisation reactor
IPC: B01J8/10
Filed: 1967-08-24
Abstract: 1,202,554. Mixing apparatus. DART INDUSTRIES Inc. 24 Aug., 1967 [24 Aug., 1966], No. 39093/67. Heading B1C. [Also in Division C3] A polymerisation reactor 1 has a shaft 5 carrying arms 11 on which are mounted outer and inner paddles 12, 13. The outer paddles are closely adjacent the inner cylindrical wall of the reactor and are angled to the arms 11 to direct material away from the wall. The inner paddles are angled in the opposite direction. Some of the paddles 12 are also inclined to the shaft axis, to convey the material in the axial direction towards the outlet 20. Preformed polymer and catalyst are introduced at 7, gaseous monomer through inlets 8-10, and the mixture level is maintained by a weir upstream of the outlet 20. The end walls are kept free from polymer accumulations by purge gas jets periodically discharged from nozzles 24 under the control of solenoid valves 22. The reactor is cooled by refrigerant passed through a jacket 25. A further reactor 30 may be connected in series with the reactor 1. This has a polymer outlet 45 with a purge gas jet to prevent blocking, and a gas outlet 43. Different monomers may be added through ports 37-39.
Patent GB-1285178-A (GB)
Title: Method and apparatus for eliminating cavitation in a jet pump
Inventor: FRAZIER DAVID MARSHALL
IPC: F04F5/46
Filed: 1969-08-05
Abstract: 1285178 Liquid jet pumps D M FRAZIER 5 Aug 1969 [7 Aug 1968] 39099/69 Heading F1E In a jet pump comprising a liquid inducing jet, means for directing gas into the interior of a liquid or solid-liquid transporting conduit at the vena contracta of the jet stream is provided. As shown liquid enters the conduit through a nozzle 26 and air is sucked into the area 38 from atmosphere via pipe 30, pressure regulating valve 32 and gas plenum chamber 20 and slot 36 at a pressure above the vapour pressure of the liquid thus preventing vaporization. The pressure within plenium 20 is sensed by means 34 which controls regulating valve 32. In a modification peripheral nozzles are provided, instead of the slot 36, which are formed by bores inclined towards the discharge end of the pump. In a further modification a centrally orientated nozzle is provided in the conduit and surrounding the nozzle and in concentric alignment therewith is a cylindrical gas plenum.
Patent GB-1115726-A (GB)
Title: Tube forming apparatus
IPC: B21C37/08
Filed: 1965-09-15
Abstract: 1,115,726. Skelping. SIMPLEX WIRE & CABLE CO. 15 Sept., 1965 [17 Sept., 1964], No. 39434/65. Heading B3P. A tube closing device, for continuously effecting final closure of a partially formed tube passing therethrough prior to welding the longitudinal seam so formed, comprises first and second positioning means disposed on opposite sides of, and generally transverse to, the axis of the tube to be closed at a distance from that axis equal to the desired outer radius of the closed tube, first and second closing means having concave confronting faces disposed along the axis of the tube to be closed, which faces are diametrically opposed, each face defining a portion of less than 180 degrees of a cylinder generated with a radius equal to the desired outside radius of the closed tube and being positioned coaxially with respect to said axis of the tube to be closed, said first and second closing means being disposed intermediate said first and second positioning means. A strip bent to arcuate cross-section is passed through means which serve finally to close the tube prior to welding the longitudinal seam and which comprise concave-faced carbon blocks 56 spring-urged to engage the sides of the partlyformed tube and horizontal rollers 40 engaging the top and bottom of the tube.
Patent GB-1387674-A (GB)
Title: Electrical resistors
IPC: H01C7/112
Filed: 1972-08-25
Abstract: 1387674 Varistors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Aug 1972 [27 Aug 1971 (4) 17 Sept 1971 (2) 22 Sept 1971] 39710/72 Heading H1K A sintered body consisting mainly of zinc oxide and exhibiting a voltage dependent resistivity is treated by diffusing lithium and/or sodium ions into its surface to improve the stability of its electrical characteristics against temperature, humidity and aging. In addition to zinc oxide the body may include oxides of one or more of bismuth, cobalt, manganese, antimony, barium, strontium, tin, lead and uranium. The lithium or sodium is preferably diffused in from a paste comprising its oxide, or one of a wide range of materials which under the oxidizing firing conditions used to cause diffusion will convert to the oxide, together with resin binders and solvent. Specified pastes include, in addition to lithium oxide, one of more of the oxides of cobalt, manganese, silver, chromium, nickel, boron, silicon, bismuth, and lead but the preferred paste includes 1-2À5 parts by weight lithium oxide and 1-3 parts potassium oxide. The body is produced by conventional milling, drying, preheating and pulverizing of the components which are then press-moulded or extruded to the required form, sintered at 1000-1450‹ C. for 1-5 hours and cooled in the furnace or air quenched. Surfaces not be be provided with electrodes are coated with paste and heated at 600-1000‹ C. for long enough to give a diffusion depth >À01 mm. Metal electrodes, e.g. of silver, copper, nickel, tin, zinc, or aluminium are subsequently applied, e.g. by flame spraying or vacuum, electroless or electrolytic deposition. Alternatively, silver paste electrodes are fired prior to the diffusion step. Finally wire leads are attached to the electrodes with solder or conductive paste.