baber/WOPTO huggingface dataset:
Patent GB-1208171-A (GB)
Title: Inherently torque-limited fastener
IPC: F16B31/02
Filed: 1968-08-16
Abstract: 1,208,171. Making nuts. HI-SHEAR CORP. 16 Aug., 1968 [31 Jan., 1968], No. 39328/68. Heading B3A. [Also in Division F2] A method of making a shear web 25 in a torque-limited fastener such as a nut 19 having a portion 20 connected to a portion 24 by the shear web, comprises forming a non-circular surface having a major dimension 26 and a minor dimension 27 on one wall of the fastener and machining a circular surface 22 on the other wall, the circular surface having a radius lying between the major and minor dimensions thus forming a number of apertures 23 in the shear web. The shear web thus consists of a number of posts 25a so that when a wrench is applied to the hexagonal portion 24, this portion breaks away by fracture of the shear web when a predetermined torque is applied to the nut. In a modification the portion 24 is positioned above the portion 20. Various modifications of the construction of the shear web are described including a shear web formed by the intersection of a circular surface with an elliptical surface. Reference has been directed by the Comptroller to Specification 867,012.
Patent GB-1490299-A (GB)
Title: Method and apparatus for loosening flexible rubber or plastics material hoses from a manufacturing mandrel
IPC: B29D23/00
Filed: 1975-09-25
Abstract: 1490299 Loosening hoses from manufacturing mandrels CONTINENTAL GUMMI-WERKE AG 25 Sept 1975 [1 Oct 1974] 39428/75 Heading F2P [Also in Division B5] In loosening a flexible rubber or plastics hose 16 from a flexible manufacturing mandrel 15 the hose with the mandrel therein is bent in alternate opposite directions in one plane by passing them around freely rotatable guide rollers 5, 6, 7 arranged in offset or staggered relation to each other. The relative positions of the rollers is preferably adjustable.
Patent GB-1382968-A (GB)
Title: Sulphone and sulphoxide derivatives of thiocarbamates and the use  thereof in herbicide compositions
IPC: C07D211/16
Filed: 1973-08-14
Abstract: 1382968 Sulphoxide and sulphone derivatives of thiocarbamates STAUFFER CHEMICAL CO 14 Aug 1973 [14 Aug 1972(3) 18 June 1973 (3)] 39502/73 Heading C2C Novel sulphoxide and sulphone derivatives of thiocarbamates having the general formula wherein n is 1 or 2; R is phenalkyl, alkylphenalkyl, halophenalkyl or haloalkylphenalkyl and R 1  and R 2 , taken together, represent a ring structure having from 3 to 10 carbon atoms, which ring structure is optionally alkyl substituted, may be prepared by reacting a compound of the formula with an oxidizing agent, e.g. peracetic acid or n-chloroperoxybenzoic acid, preferably in an inert solvent at a temperature of from -25‹ to +65‹ C. The compounds of the invention may be used as herbicides.
Patent GB-1393221-A (GB)
Title: Low copper nickel alloy nox reduction catalyst
IPC: B01J23/755
Filed: 1973-08-21
Abstract: 1393221 Treating exhaust gas GOULD Inc 21 Aug 1973 [13 Nov 1972] 39617/73 Addition to 1388284 Heading F1B [Also in Division C7]  A catalytic structure for reducing NO x  gases in internal combustion engine exhaust comprises a heat resistant metallic substrate, e.g. an expanded metal foil sheet of Ni, Co or Fe base alloy containing Cr with or without Al, having a catalytic alloy of a Ni base material (pure Ni or Ni with up to 1.5% Co) and at least 0.1% Cu adherently deposited on at least part of its surface, wherein the weight ratio of Ni base material to Cu is at  least 9 to 1. A substrate foil of 80% Ni and 20% Cr may be formed by electro-plating Ni with Cr and alloying by heating at 2200F for 2 hours, then expanded, prior to electro-plating first a Ni coating 0.000g inch thick then a Cu coating 0.0001 inch thick and alloying together and diffusion bonding by heating at 1900F for 2 hours. Alternatively an expanded wrought foil of 80% Ni and 20% Cr may be electro-plated with Ni alloy containing 2% Cu from a bath containing 200 g/1 NiSO 4 .6H 2 0, 15 g/l, NiCl 2 .6H 2 0, 75 g/l Na citrate and 1.5 g/l CuSO 4 .5H 2 0 at pH 4.5-5. The metal foil may be produced by electro-deposition, hot or cold working or powder metallurgy. The catalyst alloy may be formed by vapour deposition, flame spraying, slip casting or dry powder sintering.
Patent GB-884386-A (GB)
Title: Improvements in and relating to the measurement of magnetic field strengths
IPC: G01R33/24
Filed: 1959-11-23
Abstract: 884,386. Magnetic testing apparatus; frequency measurement. VARIAN ASSOCIATES. Nov. 23, 1959 [Jan. 22, 1959], No. 39733/59. Addition to 861,927. Class 37. [Also in Group XL (c)] In magnetic field strength-measuring apparatus of the type described in the parent Specification, the frequency of gyromagnetic precession, induced in a body, is determined by beating the gyromagnetic precession frequency with the sum of the output frequencies of a plurality of oscillators, each tunable in discrete steps. Apparatus is described for determining the earth's magnetic field in which hydrogen nuclei contained in a polyethylene bottle 5 of water are excited by first aplying a steady magnetic field at right-angles to the earth's field by means of a battery 7 and coil 4. The contact of relay 6 is then returned to its right-hand position by means of a multivibrator or manual switch 9. The gyromagnetic precession frequency is amplified by a receiver 8 and fed via a band-pass filter 11 to a mixer 13. The precession frequency and hence the strength of the earth's magnetic field is determined by beating the frequency with the sum of frequencies from two crystal oscillators 18, 19 which is reduced in frequency by binary dividers 25 to a value slightly less than that of the precession frequency. The difference frequency is selected by a low-pass filter 14 and, after amplification, fed to a vibrating reedfrequency meter 17 having a range of approximately 78-121 c/s. The selection of crystals for oscillators 18, 19, the tuning of receiver 8 and filters 11, 23 and the selection of the required number of binary stages 25 is achieved by a number of plug-in selector units 12 each having a different frequency and hence magnetic field strength range. The selectors 12 and the reed meter 17 are calibrated in terms of magnetic field strength, in units of frequency, so that the unknown magnetic field strength is determined by adding the reading on meter 17 to the value of the dial setting of the appropriate selector 12. Fig. 3 (not shown) relates to a transistorized crystal oscillator (see Group XL (c)).
Patent GB-860627-A (GB)
Title: Electric floor polishers
IPC: A47L11/16
Filed: 1959-11-24
Abstract: 860,627. Cam-operated switches. ELECTROLUX CORPORATION. Nov. 24, 1959 [Nov. 24, 1958], No. 39801/59. Class 38 (5). [Also in Group XXIII] The handle of a floor polishing machine incorporates a cam-operated electric switch, controlling the driving-motor, and which is closed when the handle is in the inclined position in which it is used for operating the machine, and which is opened when the handle is vertical or horizontal. A cam 80 is secured to the end of a leg 76 of the forked handle and is rotatable therewith in a supporting-bracket 72. When the handle is horizontal or vertical the cam 80 so retains a cam follower 86 on a pivoted lever 82 that an end of the latter depresses, against the action of a spring 94, an end of a pivoted arm 90, actuating a toggle switch 92, to maintain the switch open. When the handle is in its operative position the cam follower 86 is allowed to rise within a concave part 96 of the cam 80 so that the switch 92 is closed by the spring 94.
Patent GB-1236370-A (GB)
Title: Improvements in and relating to thermographic copying machines
Inventor: KRAKOWIAK STEFAN JANUSZ
IPC: G03B27/30
Filed: 1969-08-08
Abstract: 1,236,370. Thermographic copying apparatus. SCRIPTO, Inc. Aug. 8, 1969, No. 39841/69. Heading G2A. A thermographic copying machine comprises a housing 10 having an entry throat 28 and an exit throat 30, a pair of parallel rollers 44, 60 rotatably and mutually displaceably mounted in the housing to permit the passage of specimens of different thickness between the rollers, one of the rollers, 60, being hollow and transparent to infrared light and having along the interior thereof an elongate frame 70 supporting an elongate heat reflector of arcuate cross-section and an elongate heat lamp 86 aligned along the locus of the focii of the reflector, and an electrical control circuit for energizing the heat lamp to irradiate a specimen passing between the rollers in response to the introduction of the specimen into the machine. The circuit energizes the lamp upon the detection of a specimen by the reflection of light therefrom on to a photo-detector. The lower roller 44 is of rubber and has stub shafts 42 journalled in slide bars which are spring-biased towards roller 60. Roller 60 is positioned between roller 44 and two rubber rollers 58, one of which together with roller 44 are chain driven by an electric motor 100 through a double worm and wheel reduction gear. The motor also drives a turbine or squirrel cage fan 120 which circulates cooling air through the machine and through roller 60. The longitudinal opening in frame member 70 is displaced by an angle of 10 degrees from the vertical towards the entry throat. The motor speed may be varied to give variable feed rates and hence a variable copy intensity. The original is fed to the machine in a transparent carrier either in contact with a heatsensitive sheet or which a heat-sensitive carbon between the original and copy sheet.
Patent GB-1046060-A (GB)
Title: Hose coupler
Inventor: ROSELL LESTER PERRY
IPC: F16L37/44
Filed: 1965-09-17
Abstract: 1,046,060. Hose couplings. EMCO WHEATON Inc. Sept. 17, 1965, No. 39842/65. Heading F2G. A coupling for connecting a hose 86 to a fuel tank, for example, includes a body 10 incorporating a valve 30 opened by a lever 60 subsequent to connecting the body to the tank fitting and a rotatable interlock plate 38 provided with locking means 40 which enter notches formed in the tank fitting; rotation of the body allows lugs on the tank fitting to interlock with lugs on the notched flange 18 while the plate 38 is held to the fitting and rotates relative to the body. The plate has recesses which receive spring- pressed balls housed in the body and which engage in further recesses when the plate is in the " coupled "position. A spring-loaded plunger 54 registers with a countersink in the plate and is pushed downwardly by the lever 60 to prevent rotation of the plate and disconnection of the body, the valve 30 being simultaneously opened.
Patent GB-1360781-A (GB)
Title: Open cycle ammonia refrigeration system and a catalytic ammonia burner therefor
IPC: B60H1/32
Filed: 1971-08-25
Abstract: 1360781 Refrigerating; consuming noxious vapours ALLIED CHEMICAL CORP 25 Aug 1971 [25 Sept 1970] 39855/71 Headings F4H and F4B  An open cycle refrigeration system, e.g. installed on a road vehicle comprises a storage tank 10 for liquid ammonia supplying via a conduit 11 and surge tank 12 an evaporator 14 wherein the vaporization of the ammonia absorbs heat from the interior of the cargo container and the ammonia vapour flows through conduits 16 and throttling valve 17 to an ammonia dissociator-burner 18, the combustion products being discharged to atmosphere . The burner comprises an insulated housing 29 defining a combustion chamber and contains apertures 30 for combustion air and vertical conduits 26 containing a catalyst 27, e.g. iron, for partially dissociating the ammonia vapour fed thereto through a manifold 25. The dissociated ammonia is discharged from the conduits to be burned and the heat of combustion maintains the catalyst at an active temperature. Electrical heating elements 34 or a portable torch are used for start-up. In a modification the catalyst-containing conduit is horizontally positioned in the burner. The burner may be replaced by an I.Q. engine which burns the vaporized ammonia.
Patent GB-1018186-A (GB)
Title: Fuel cell
IPC: H01M8/14
Filed: 1962-10-22
Abstract: 1,018,186. Fuel cells. TEXAS INSTRUMENTS Inc. Oct. 22, 1962 [Oct. 26, 1961], No. 39874/62. Heading H1B. A fuel cell having an electrolyte carrier between two electrodes, employs a carrier having a plurality of holes extending completely and substantially directly therethrough and which contain the electrolyte solely by surface tension. A mesh or perforated membrane may form the carrier.
Patent GB-1020482-A (GB)
Title: Improvements in or relating to glass
IPC: C03C3/32
Filed: 1961-11-07
Abstract: A glass having a softening point above 350 DEG  C\s2 and capable of transmitting electromagnetic radiations of 6.5-10.5 microns wavelength consists essentially of sulphides and contains 13-53% of germanium.  The ingredients may be in the form of 20-75% GeS and 10-80% S and any remainder a compatible sulphide e.g. GeS2, GaS, In2S3, As2S3, SrS, SnS, or ZnS; alternatively, there may be up to 100% GeS2.
Patent GB-1192088-A (GB)
Title: Improvements in and relating to Light-Sensitive Material for the Production of Printing Plates
IPC: G03F7/095
Filed: 1967-09-01
Abstract: 1,192,088. Photo-sensitive materials. KALLE A.G. Sept.1, 1967 [Sept.2, 1966], No. 40097/67. Heading G2C. A photo-sensitive material comprises an aluminium support, a first layer containing a water-soluble paradiazodiphenylamine salt or a condensate thereof with an aldehyde and a second layer containing a water-insoluble para-benzo- or para-benzoimino-quinone diazide. A polymer may be added to either or to both layers. The support may be coated with a silicate, polyacrylic acid or phosphonic acid or be chemically treated before the light-sensitive layers are applied. The material is imagewise exposed and developed with aqueous alkaline solution to remove the unexposed areas of both layers and produce a printing plate.
Patent GB-1060307-A (GB)
Title: Shielding-ring arrangement for high-voltage windings
IPC: H01F27/32
Filed: 1963-10-11
Abstract: 1,060,307. Transformers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. H Oct. 11, 11 1963 [Oct. 12, 1962], No. 40218/63. Heading H1T. A high voltage winding, of which a radial section is shown in Fig. 4, has at least two shielding rings 24, 25 rigidly connected together and between them at least one channel 26 for cooling fluid. The rings are coated with insulation 28, 29, and may be symmetrical as in Fig. 4, where the inner part of the winding is divided into two parallel connected cylinders 21, 22. Alternatively, they may be assymmetrical (34, 35, Fig. 5, not shown) where a single inner winding cylinder (32) is used, surrounded by a screen (33), the electrical connections in this case being arranged as in Fig. 3 (not shown) where the screen (19) is connected to the single winding cylinder. The rings may be electrically connected, or may be insulated from one another and allowed to assume different potentials. The rings may be formed by a conductive coating on a base of fibre-glass or of a combination of fibre-glass and resin impregnated paper.
Patent GB-1028794-A (GB)
Title: Electric brush
IPC: H01R39/38
Filed: 1963-10-11
Abstract: 1,028,794. Brushes for dynamo electric machines. STACKPOLE CARBON CO. Oct. 11, 1963 [Nov. 29, 1962], No. 40220/63. Heading H2A. An electric brush B comprises two thin carbon brush half sections 7, 8 disposed faceto-face and substantially parallel, and a resilient member 11, 12 disposed between the parallel faces, in engagement with both and being connected to one of the faces. As shown, the brush halves 7, 8 are kept in close contact with the parallel sides of a brush holder 1 by the members 11, 12 which may be wire springs or rubber-like plugs glued in pockets 13 so that when the direction of rotation of the commutator 2 or a slip ring is reversed no movement or chatter occurs and therefore no reseating is necessary. The brush is urged into contact with the commutator 2 by a spring 4.
Patent GB-944547-A (GB)
Title: Improvements in dispersion head for extruder
IPC: B29C48/67
Filed: 1962-10-24
Abstract: 944,547. Extruders. STERLING EXTRUDER CORPORATION. Oct. 24, 1962 [July 18, 1962], No. 40273/62. Heading B5A. An extruder having a screw shaft 4 rotating within a barrel 1 is provided with a milling head in an extension of the barrel and formed by a shaft extension 10 having a number of cylindrical surfaces provided by annular rings 13 spaced by rings 14, the rings 13 making small clearance with the bore of the extension barrel 5 so that plastic material is subjected alternately to periods of high shearing stress, and periods of relief from shear.
Patent GB-1161292-A (GB)
Title: Improvements in or relating to Flexible Drive Cable Assemblies
Inventor: TILBURY RICHARD GEORGE
IPC: F16C1/26
Filed: 1965-09-04
Abstract: 1,161,292. Bowden mechanisms; flexible shafts; flexible tubes. SMITHS INDUSTRIES Ltd. 5 Sept., 1966 [4 Sept., 1965], No. 40408/68. Divided out of 1,161,291. Addition to 969,555. Headings F2K, F2P and F2U. An outer member 2 of a flexible drive assembly comprises a tube having extruded concentric layers 3, 4 of resilient material and a fitting 5 shaped for attachment to a support, the fitting having a tubular part 6 moulded around a portion of the tube so that it grips the tube tightly without necessarily being bonded to it. The inner layer may be formed of a polyacetal resin or nylon and the outer layer 4 may be of high density polythene or of polypropylene. A layer of metal braiding may be disposed intermediate the two extruded layers. The fitting may be of a polyacetal resin or nylon.
Patent GB-915946-A (GB)
Title: Belt feed mechanism for automatic recoiling guns
IPC: F41A9/32
Filed: 1959-11-27
Abstract: 915,946. Automatic firearms. MAUSERWERKE A.G. Nov. 27, 1959 [Nov. 27, 1958], No. 40423/59. Class 92. In an automatic recoiling gun a belt-feed mechanism has a housing 20 secured to a non- recoiling part of the gun, a first two-armed lever pivoted on the housing and actuated, at 4-6, by recoil and recuperation, a second two-armed lever 8 pivoted to the first through a releasable connection 7a-11 and actuating first 13 and second 14 slides carrying belt-feed and ejector means so that during recoil the leading cartridge is discharged from the belt into a loading position and the belt partially advanced and during recuperation advance of the belt through one step is completed. At the ends of the lever 8 are rollers 11 and 12 which engage with belt slides 13 and 14. The slides 13 and 14 have slots 131, 14<SP>1</SP> to locate them on guide rollers 31 and 32 fixed to the cover 10. The slide 13 carries an inner belt feed-lever 19 whilst the slide 14 carries outer belt feed-levers 15 and 16 at its extremity and ejecting pawls operating on the belt 17 and 18 further inwards. Springs 15<SP>1</SP>, 16<SP>1</SP>, 17<SP>1</SP>, 18<SP>1</SP> and 19<SP>1</SP> load these levers and pawls. The entire shift mechanism is pivoted at 9 to the cover 10, which, when released by a bolt 10b can be hinged up about 10a for insertion of the cartridge belt into the feedway, or to enable the whole shift-mechanism to be rotated through 180 degrees on the cover when it is desired to change the direction of the belt from left-hand feed to right-hand feed, or vice versa. For the latter purpose it is also necessary to interchange the levers 15, 16 and pawls 17 and 18 on the slide 4 so that the longer levers still the first to engage a cartridge. A frame 20b acts as a cartridge-stop and carries spring levers 21 and 22 pivoted on a pin 23 and bearing on to the foremost cartridge and under the front end of the leading belt-link. The levers 21 and 22 in conjunction with ramps 21a, 22a serve to strip the cartridge from the belt and feed it through the extension 20a, whereby the housing is connected to the body of the weapon (see Fig. 4). A catch (Fig. 1, not shown) retains the housing in place on the body.
Patent GB-887027-A (GB)
Title: Improvements in dry shavers
Inventor: BACON DONALD GEORGE
IPC: B26B19/46
Filed: 1958-12-16
Abstract: 887,027. Dry shavers. EVER-READY RAZOR PRODUCTS Ltd. Dec. 11, 1959 [Dec. 16, 1958], No. 40546/58. Class 131 An electric dry shaver comprises a casing 3 having a cutter head at one end, a motor 4 within the casing for driving the cutter, a lamp 7 within the casing and on the opposite side of the motor to the cutter head, and reflecting means for directing light from the lamp to an area adjacent the cutter head to illuminate the skin on which the shaver is used. As shown, a removable cap 6 retains the shear plate of the cutter head on the casing 3 and transparent plastic plates 8 inset in openings in the casing have end edges 10 close to the lamp and conduct light, by internal reflection, to end edges 9 close to the cutter head. A coloured sheet or coating may be applied to the inner face of one or both of the plates which may be engraved. According to the Provisional Specification the transparent plates are applied to the outer surfaces of the sides of the casing, one end of each plate projecting through the casing near the lamp. Specifications 788,304 and 788,305 are referred to.
Patent GB-1487386-A (GB)
Title: Casting apparatuses and casting methods
IPC: B22D35/00
Filed: 1974-09-17
Abstract: 1487386 Tundishes E BUHRER 17 Sept 1974 40570/74 Addition to 1395393 Heading F4B [Also in Division B3] A casting apparatus comprises a mould 5, a tundish 1 having an outlet 2 offset laterally from the mouth of the tundish, and means 14 for moving the tundish to place it on top of the mould and to remove it therefrom. The tundish is supported in a holder 12 connected with a tilting mechanism which operates to move the tundish from the position shown to a position in which a surface 4 abuts the upper surface 10 of the mould. The tundish may be turned through 180 degrees about a vertical axis (19) so that it discharges into a vessel (21) instead of the mould. A plurality of moulds may be moved stepwise past a plurality of the tundishes.
Patent GB-945929-A (GB)
Title: Improvements in or relating to high frequency heating apparatus
Inventor: SPASH DAVID ISAAC
IPC: H05B6/62
Filed: 1962-10-26
Abstract: 945,929. Valve oscillating circuits. RADYNE Ltd. Oct. 26, 1962, No. 40606/62. Addition to 877,014. Heading H3F. [Also in Division H1] A valve oscillator for high-frequency dielectric heating which is a modification of that disclosed in the parent Specification comprises a cylindrical cavity resonator 2 in which the cavity is resonated by a pair of series-connected condensers. One comprises cylindrical element 10 attached to one end 4 of the cavity 2, in conjunction with a further cylindrical element 14 which is supported on insulators (not shown). In the present modification the second condenser comprises the anode to grid capacity of the valve 20, the anode 22 of which is attached to the element 14 and the grid connected to one end of the cavity over D.C. blocking condensers 26. An output signal is applied to the live dielectric heater electrode 54 via conductors 54.