baber/WOPTO huggingface dataset:
Patent GB-934657-A (GB)
Title: Improvements in or relating to capacitors
IPC: H01G13/00
Filed: 1960-12-29
Abstract: 934,657. Capacitors; mounting terminals. TELEGRAPH CONDENSER CO. Ltd. Dec. 29, 1960 [Jan. 11, 1960], No. 44582/60. Classes 37 and 38 (1). [Also in Group XXII] Relates to a capacitor comprising a capacitance element 12 contained within a can 10 with a closed end 21 to which an external copper lead 24 is welded and an open end in which a bushing 40 supporting a conducting plug 34 is positioned. An external lead 36 is welded to the side of the plug remote from the capacitance element, which may be impregnated, while folded metal tabs are connected to the electrodes of the capacitor element; one, 20, being welded to the inside of the housing whilst the other, 30, is welded to the conductive plug. The bushing 40 may be of a synthetic thermosetting plastic and may be sealed by means of a rubber ring 46 fitting in a groove 44, with the rim of the can spun over on to the bushing. Alternatively, the bushing may be wholly rubber (Fig. 2, not shown). The invention may be applied in conjunction with either non-electrolytic or electrolytic capacitors, and in the case of electrolytic capacitors the can must have at least an inner surface that is not attacked by the electrolyte; aluminium, tantalum or silver being suitable. The can may have a multi-layered wall of different materials. An arrangement for carrying out the butt welding of the leads to the casing comprises two electrodes 61 and 62 (Fig. 4), the electrode 61 carrying an arrangement 66 into which the external lead 24 may be clamped. The electrode 62 has an anvil 64, on the head of which rests the internal electrode lead and the capacitor can. The arrangement is such that on bringing the electrode 61 down so as to carry out the welding process, the internal and external leads are simultaneously welded to the can. The capacitor element is thereafter inserted into the can and the other electrode tab 30 welded to the plug 34. This has previously had the external lead 36 attached to it and the bushing 40 moulded about it, so that after the tab 30 has been welded the bushing is inserted into the mouth of the can and the rim of the can spun over. A slightly different process is described for the situation where the metal plug extends completely through a rubber bushing (Figs. 2 and 5, not shown).
Patent GB-908618-A (GB)
Title: Substituted bis (2-hydroxy naphthyl) sulphides and process for preparing same
IPC: C08L27/00
Filed: 1960-12-30
Abstract: Polyolefin compositions comprise as antioxidants compounds of the general formula <FORM:0908618/IV(a)/1> in which R is an alkyl, cycloalkyl or aralkyl radical (see Group IV(b)).  Polyolefins specified include polyethylene, polypropylene and copolymers of ethylene and propylene.  The antioxidant effect is enhanced by incorporating in the compositions carbon black. Examples describe the preparation of sheets from polyethylene containing antioxidants such as 1,11-thiobis(6-tert. octyl 2-naphthol), 1,11-thiobis-[6-(1-methylcyclohexyl) -2-naphthol] and 1,11-thiobis(6-a , a -dimethylbenzyl-2 -naphthol with and without carbon black and polypropylene containing 1,11-thiobis-[6-(1-methylcyclohexyl)-2-naphthol].ALSO:The invention comprises compounds of the general formula <FORM:0908618/IV (b)/1> in which R is an alkyl, cycloalkyl or aralkyl radical.  Such compounds are employed as antioxidants for polyolefins (see Group IV(a)).  Many radicals are specified from which R may be reflected including amyl, isooctyl, octadecyl, methyl cyclopentyl, 4-laurylcyclohexyl and a -xylyl ethyl.  The examples relate to the preparation of compounds of the general formula above in which R is methylcyclohexyl, t-octyl-butyl, cyclohexyl, a -methylbenzyl, a ,a -dimethylbenzyl and methyl.  The products are prepared by reacting appropriately substituted b -naphthol with a sulphur dihalide e.g. the dichloride.
Patent GB-1504387-A (GB)
Title: Method and apparatus for measuring the oxygen to metal ratio in oxidised nuclear fuels
IPC: G01N33/20
Filed: 1975-10-30
Abstract: 1504387 Determining oxygen/metal ratio GES FUER KERNFORSCHUNG mbH 30 Oct 1975 [3 May 1975] 44866/75 Heading G1N The oxygen/metal ratio in oxidized nuclear fuel is determined by heating the fuel to 650-1300‹C, measuring the oxygen potential of the fuel by a solid electrolyte sensor using reference which will not destroy the nuclear fuel and then determining the ratio from the sensor output by means of a calibrating graph or a computer and a calibrating function. Preferably the temperature is 900 Œ 0.15‹C, the solid electrolyte therein oxide doped with yttrium oxide (3-7 mol %) and/or calcium oxide (3-7 mol %) and the reference is a metal with its oxide, preferably Ni/NiO or Fe/FeO. The sensor is mounted in a regulatable furnace and comprises a ceramic tube or tubes (8,9) with a solid electrolyte crucible 10 mounted at one end. Reference material 11 is mounted inside the crucible and is attached to the inner tube 9 and a platinum wire 3. The sample 12 under test is held against the outside of the solid electrolyte by a cromic (13) and platinum (4) electrode. In an alternative embodiment, crucible 10 is made of calcium oxide doped zirconium dioxide and detachably connected to tube 8. Discs of doped thorium oxide solid electrolyte are interposed between the reference material 11 and crucible and between the sample 12 and crucible. Equations for calculating the oxygen/metal ratio from the sensor output are given.
Patent GB-1486019-A (GB)
Title: Antilock control system for motor vehicle brakes
IPC: B60T8/50
Filed: 1974-10-17
Abstract: 1486019 Aritiskid braking systems TELDIX GmbH 17 Oct 1974 [18 Oct 1973 19 Sept 1974 45106/74 Heading F2F An antiskid vehicle braking system comprising valves in the form of inlet and outlet valves 6a, 6b or three position valves 7 for blocking the supply of fluid to the wheel cylinders and allowing flow therefrom to a feed back line 9 for reducing braking pressure and means for controlling the valves in dependence on the rotary behaviour of a wheel or wheels has also a normally open, hydraulically controlled shunt valve 12 bridging the valves 6 or 7 and closed by a predetermined pressure of fluid in the feedback line 9 the valve 12 being retained closed by the pressure difference across it until this difference falls to a predetermined value, this arrangement allowing a rapid application of the brakes and a rapid pressure build-up.
Patent GB-1130359-A (GB)
Title: Improvements in and relating to hydro-dynamic torque transmission devices
IPC: F16H47/08
Filed: 1965-10-26
Abstract: 1,130,359. Hydrodynamic transmissions and control; change-speed gear and clutch combinations. P. WILLEMS. 26 Oct., 1965 [26 Oct., 1964], No. 45215/65. Headings F2C, F2D and F2L. In a hydrodynamic torque transmission device for use, e.g., in motor vehicles, wherein nested rings of axially directed radial-admission pump and turbine blades 1, 2 extending from rotors 3, 4 are relatively axially displaceable to vary torque transmission, claw clutch teeth 29, 28 fast respectively with the pump blades and the turbine rotor engage at maximum pump and turbine blade ring overlap for direct, positive clutch, transmission, and this positive clutch engagement is synchronized by frictional engagement of conical friction facings 23, 25 respectively fast on the pump rotor and mounted, by axially oriented springs 27, on the turbine blade ring. As shown, the turbine rotor 4 is fixed to an axially displaceable driven shaft 7 by radial spokes 8 which may be constructed as axialadmission blades. The pump and turbine are disposed in a generally frusto-conical housing 10 provided with a lid 11 and a compensating container 12 receiving excess fluid. In operation, fluid is centrifugally circulated from a central space 9, through the pump and turbine blades, the turbine being rotated by the impinging fluid, and back to the space 9 through the turbine spokes 8. The driven shaft end may be spigoted in the pump rotor. In Fig. 3 (not shown), two rings of pump blades and two rings of turbine blades are intercalated and both pump and turbine blade rings are mounted on spoke-supported rotors around which the fluid flows. In Fig. 4, (not shown), the turbine blademount rotor at one, no overlap, end of its axial displacement abuts a housing wall and thereby prevents fluid entry into the central space 9, so that the fluid has to flow back radially inwards through the turbine blades and no torque is transmitted. A guide blade ring may be disposed between the pump and turbine blade rings and/or around the latter. The pump and turbine blade rings may be relatively displaceable manually, pneumatically, hydraulically, or automatically, e.g. programme controlled. The driving and driven shafts may be nested. The pump and turbine blades may be flat, bent or curved, radial or inclined. The annular gap 5 between the blade rings may be conical or, as shown, cylindrical, and may be determined by fluid viscosity. The degree of housing filling may be varied by a filling device communicating with the housing, said device having an axial or rotary piston or resilient walls, e.g. being constructed as an elastic (e.g. rubber) bag. The hydrodynamic device may be combined with multi-speed or reversing gearing which may be friction wheel or toothed, e.g. spur, bevel, worm, or epicyclic. The blades of at least one ring may be radially adjustable manually or automatically, e.g. the pump blade ring may be input speed responsive, being radially adjustable as a function of centrifugal force.
Patent GB-1181054-A (GB)
Title: Edge-Wire Support Unit
Inventor: GARRISON JOHN
IPC: A47C31/06
Filed: 1968-09-24
Abstract: 1,181,054. Spring upholstery. J. GARRISON. 24 Sept., 1968, No. 45334/68. Heading A4M. A spring unit includes a border wire 11 supported by elements 12, formed by spring metal strip, engaged with sinuous springs 6 extending between opposite sides of a frame 5, each element 12 having at its opposite ends open loops 13, 14 with restricted mouths (17) so that the loops 13, 14 respectively have a snap engagement with a cross bar 9 of a spring 6 and the border wire 11. An intermediate loop 15 in the element 12 engages on end 25 of the border wire 11 or an inner wire (24, Fig. 3). A cranked arm 19 of the element 12 bears on a crossbar 9 adjacent that engaged by the loop 13. The intermediate loop 15 may be secured by a hog ring (26, Fig. 3) to a crossbar 9 of the spring 6. An edge roll (28) may be secured by hog rings (29, 30) to the border wire 11 and element 12.
Patent GB-1273809-A (GB)
Title: Hydraulic rotary pump unit
IPC: F04B49/08
Filed: 1969-09-16
Abstract: 1,273,809. Reciprocating pumps. SUNDSTRAND CORP. Sept. 16, 1969 [Oct.21, 1968], No.45681/69. Heading F1A. In a swash-plate pump unit comprising a main pump 10 supplied by a feed pump 20, a valve 28 in the feed pump output line acts to supply feed pump pressure to swash-plate-biasing piston 51 only when the inlet demand of pump 10 has been satisfied. Piston 51 biases swash-plate 17 to increase the pump displacement, and a control piston 59 and spring 56 bias the swash-plate to decrease the displacement. Piston 59 is controlled automatically by valve 12 subjected to the main pump output pressure, to maintain the output pressure constant at a level determined by the setting of spring 65. A solenoid valve 80 is actuated to reduce the pump output pressure. In its right-hand position, valve member 91 of valve 28 only connects main pump inlet 26 to the feed pump. When the inlet demand of the main pump is satisfied, the feed pump output pressure increases in valve chamber 97 and moves the valve member to the left against spring 98. Valve member land 94 then connects biasing piston 51 to feed pump pressure via port 103, and piston 51 biases swash-plate 17 to increase the main pump displacement to a level determined by control piston 59. Continued leftward movement of valve member 91 connects feed pump output via passages 109, 108 to a port 111 supplying fluid for cooling the rotating parts of the main pump, the coolant returning to reservoir 22 via heat exchanger 116. Finally valve member 91 connects chamber 97 to passage 36 to by-pass the feed pump output to the feed pump inlet, and acts to maintain the feed pressure to the main pump constant. A check valve 121 permits return flow from biasing piston 51 when port 103 is closed by land 94 during the return movement of valve member 91. Feed pump 20 draws from reservoir 22 through a filter 118.
Patent GB-1235240-A (GB)
Title: Process for the production of alkyl phenols
Inventor: KALAV CEVAT
IPC: C07B61/00
Filed: 1969-09-17
Abstract: 1,235,240. Production of alkyl phenols. UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF A.G. 17 Sept., 1969 [28 Nov., 1968], No. 45778/69. Heading C2C. Alkylphenols having high meta-isomer content are prepared by the alkylation of phenol with an alkylating agent at an elevated temperature of up to 120‹ C. in the presence of an aqueous catalyst solution which contains zinc bromide or zinc chloride and which is activated by the addition of a small quantity of hydrogen bromide or hydrogen chloride, followed by isomerization of the resulting reaction mixture at a temperature above 150‹ C., optionally at an elevated pressure, wherein the relatively lowboiling constituents of the reaction mixture are separated by distillation before isomerization. The example describes the alkylation of phenol with propylene using ZnB 2 /HBr as a catalyst to produce a mixture comprising 34.2% by wt. of m-isopropyl phenol, 13.5% by wt. of p-isopropyl phenol, 6.2% by wt. of o-isopropyl phenol, 12.2% by wt. of diisopropyl phenol and 2.9% by wt. of higher-alkylated compounds.
Patent GB-462794-A (GB)
IPC: G03C7/14
Abstract: 462,794. Copying lenticular films. BLONDEL, A. June 5, 1936, No. 15799. Convention date, June 7, 1935. [Class 98 (ii)] A method of copying lenticular films by projection of the originals on diffusing translucent or reflecting screens and photographing the real images obtained, the colour-component images being successively selected by movable shutters which homothetioally unmask the corresponding parts of diaphragms used in conjunction with the objectives, is characterized in that the variations of the distance of convergence of the original are compensated by field lenses which direct the luminous beams through the diaphragms, the contours of which are determined by conical projection. As shown in Fig. 1, the objective O1 produces on the translucent screen E an image of the film F1 illuminated by the source A and the optical system U, L0. Field lenses L1 and L2 are placed on either side of the film F1. In front of the copy film F2 is placed a field lens L3. The film F1 may be illuminated on the smooth or lenticular side. The diaphragms D1 and D2 have the form shown at D in Fig. 2, their contours being determined as described in Specification 462,655. The rotating shutters R1, R2, having apertures 11, J1, K1, Fig. 2, successively unmask the corresponding apertures I, J, K of the diaphragms D1, D2. Opaque bands provided with analogous apertures and arranged on rollers or in endless rings may be used. Diaphragms executing an alternating movement may also be employed. The image may be inverted by the prism P. A correcting colour screen e may also be employed. A third rotating shutter R0 may be employed. The field lenses L1, L2 may be dispensed with and correcting lenses used in view-taking. The films Fl, F2 may be placed on the same side of the screen which then operates by reflection. Instead of correcting lenses, collimating lenses may be used in view-taking and projection. An auxiliary optical system may be placed between the diaphragm DO and the film. The condenser and auxiliary objective may be arranged on movable carriages. The screen E may be dispensed with. The method may be applied to the production of films giving the appearance of relief instead of or in addition to colours.
Patent GB-1151098-A (GB)
Title: Improvements in and relating to Heat Exchangers.
Inventor: CONSTANT LEONARD CHARLES
IPC: F28D7/00
Filed: 1966-10-18
Abstract: 1,151,098. Refrigerating. J. & E. HALL Ltd. 17 Oct., 1967 [18 Oct., 1966], No. 46467/66. Heading F4H. In a compression-condensation refrigeration system the evaporator has at least three re frigerant passes and means are provided for passing liquid refrigerant from the junction of the second and third passes to the entrance of the first pass. As illustrated, the evaporator 12 is divided by partitions 9 and 10 into three compartments each provided with refrigerant tube bundles, Fig. 4 (not shown), which connect entrance and exit headers 25 and 24 via linking headers 23 and 26. Liquid refrigerant is withdrawn from the header 26 through a duct 27 which connects with the low pressure region of a refrigerant injector 28. The system includes an expansion valve (not shown) which is controlled according to the evaporator outlet temperature in order to maintain a predetermined level of superheating at that outlet. A medium to be cooled by the evaporator flows from an entrance 5 to an exit 6 via openings 13 and 14 in the partitions 10 and 9.
Patent GB-1247883-A (GB)
Title: Photographic process and silver halide materials
Inventor: SEUS EDWARD JOSEPH
IPC: G03C1/08
Filed: 1968-10-02
Abstract: 1,247,883. Developing silver halide materials in the presence of zwitterions. EASTMAN KODAK CO. Oct. 2, 1968 Oct. 2, 1967], No. 46677/68. Heading G2C. A process for producing a photographic image comprises developing an imagewise exposed photographic silver halide emulsion layer in the presence of azwitterionic compound represented by one of the formulae:- wherein A is N or P; R 1 , R 2  and R 3  are each alkyl, aralkyl or substituted or unsubstituted aryl or two or all of them, together with A, form a heterocyclic ring; R 4  is a substituted or unsubstituted alkylene chain having one or more carbons; R 5  and R 6  one each substituted or unsubstituted alkyl or aryl and B<SP>-</SP> is an acidic anionic residue, and a cationic or non-ionic development accelerator. The zwitterionic compound and the cationic or non-ionic accelerator may be present in a solution or in the material. The cationic development accelerator may be a bis-pyridinium salt (e. g. 7, 18-diaza-6, 19-dioxotetracosane-1, 24-bis (pyridinium perchlorate)). The nonionic accelerator may be polyalkylene glycol or a thioether compound; in the examples polyethlene oxide oleyl ether having a molecular weight of 1540 is used. Many examples of zwitterionic compounds and cationic and non-ionic development accelerators are listed. The invention is particularly applicable to high contrast photographic emulsions. When photographic emulsion layers are developed in the presence of a zwitterionic and a cationic or non-ionic development accelerator according to this invention, an increase in speed is obtained with little or no increase in incubation or development fog. It has been found that using the development accelerator in combination with a zwitterionic compound yields synergistic speed gains.
Patent GB-1067184-A (GB)
Title: Method of producing case tempered threaded members
IPC: C21D9/00
Filed: 1965-11-04
Abstract: 1,067,184. Making threaded members. CATERPILLAR TRACTOR CO. Nov. 4, 1965 [Nov. 27, 1964], No. 46736/65. Heading B3A. [Also in Division F2] A threaded member, e.g. a bolt or stud, is formed with a hardened core and a tempered outer casing in which the threads are formed. The threads are formed either in the throughhardened blank before tempering or the blank is tempered before the threads are formed.
Patent GB-1453010-A (GB)
Title: Forging machines
IPC: B21J7/14
Filed: 1974-10-29
Abstract: 1453010 Forging hammers S BRIGNOLI 29 Oct 1974 46829/74 Heading B3H A forging machine has at least two pairs of hammers 8 driven by eccentric shafts 7 synchronized by gearing 7<SP>1</SP>, each hammer being provided with a die holder 9 resiliently connected to the hammer and separated to provide additional stroke length. The separation may be provided by a wedge 16 displaced between the die holder 9 and the hammer by a pistoncylinder unit 17, 18 or by a mechanical or electrical device. The wedges 16 of each opposed pair of hammers are moved together by a cross-member 14. A scale collecting vessel 5 is provided in an oil sump 4 and fans 27 draw air to cool electric motors 6 driving the eccentric shafts 7.
Patent GB-1473925-A (GB)
Title: Surgical face mask
IPC: G02C1/00
Filed: 1974-11-01
Abstract: 1473925 Surgical masks JOHNSON & JOHNSON 1 Nov 1974 [1 Nov 1973] 47360/74 Heading AST A surgical mask has a pleated air pervious body 21 bound at the edges by tapes 23, 24, 25 which are extended to form tie strings 28, the body including a bacteria filter and at its outside upper part being covered by an air impervious sheet 30 provided with two rows of pairs of slits 31 which define flaps to direct exhaled breath away from the eyes of a wearer. The sheet may extend over the top of the body and down the inner surface and be retained by the tape stitching 18 thus forming downwardly opening pockets. In modifications the slits are V-shaped, or U-shaped with either perpendicular or outwardly inclined limbs. A nose clip 27 is provided.
Patent GB-1089852-A (GB)
Title: Firing turret for teleguided missiles
Inventor: STAUFF EMILE
IPC: F41G7/00
Filed: 1964-11-24
Abstract: 1,089,852. Photo-electric direction-finding. NORD-AVIATION SOCIETE NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Nov. 24, 1964 [Nov. 28, 1963], No. 47815/64. Heading H4D. In the launching of a missile to be guided remotely under the control of a sighting telescope and infra-red direction-finder unit mounted with two degrees of freedom, that unit is momentarily locked to the launching ramp when the missile is fired, the missile thereby always being retained in the field of view of the direction-finder. In the embodiments dog clutches are utilized, Figs. 1, 2, 3 (none shown).
Patent GB-1413521-A (GB)
Title: Processes for purifying gases containing hydrogen cyanide
IPC: B01D53/54
Filed: 1972-10-18
Abstract: 1413521 Reducing the COD of thiocyanate solutions; H 2 S removal NIPPON STEEL CORP 18 Oct 1972 [18 Oct 1971] 47978/72 Headings C1A and C1C A process for the reduction of the chemical oxygen demand of an aqueous liquid containing ammonium and/or alkali thiocyanate, e.g. a solution produced by treating waste gas with an aqueous alkaline absorption solution to convert HCN to alkali cyanide and reacting the aqueous alkali cyanide with a polysulphide, comprises treating the thiocyanate solution with free oxygen at a temperature of at least 150 C. and at a pressure above the vapour pressure of water at the treatment temperature so as to oxidize thiocyanate to sulphate, ammonia (in the form of an ammonium salt) and CO 2 . The free oxygen may be in the form of air. Preferably at least 2 moles of free O 2  and at least 2 moles of H 2 O are used per mole of thiocyanate. The pH of the aqueous thiocyanate solution is preferably at least 7À7, more preferably above 8À0. The temperature of treatment is preferably above 200 C. The polysulphide may be regenerated by adding S to the reaction mixture. The waste gas may also contain H 2 S which is converted to alkali sulphide by the alkaline absorption solution and is then reacted with a redox catalyst so as to convert the sulphide to S. Suitable catalysts include derivatives of quinone, naphthaquinone, phenanthrenequinone and picric acid. The majority of the aqueous thiocyanate reaction mixture may be recycled before the oxidation reaction and the oxidation reaction carried out on a part of the circulating solution continuously extracted from the recycling system. Gypsum may be recovered from the oxidized solution by adding lime, slaked lime or calcium carbonate to the aqueous thiocyanate solution prior to the oxidation reaction.