baber/WOPTO huggingface dataset:
Patent GB-215799-A (GB)
Title: Improvements in and relating to electric signalling systems, particularly wireless receiving systems
IPC: H04B1/16
Filed: 1922-11-10
Abstract: 215,799. Taggart, J. Scott-, and Radio Communication Co., Ltd. Nov. 10, 1922. Thermionic amplifiers.-Relates to the use of. reaction in dual amplification circuits, i.e. in which a valve is used for simultaneous high and low frequency amplification. As shown in Fig. 1, rectified currents from the crystal D are applied through a step-up transformer T<1>, T<2> to the grid of the valve V which is also coupled to the aerial inductance through a coil L<2> in series with the transformer secondary. The output circuit is back-coupled through a coil L<3> with the coils L', L<2>. In another arrangement the valve acts primarily as a high-frequency amplifier with tuned anode reaction directly on to the aerial. A crystal detector is inserted in the tuned anode circuit, and the rectified low-frequency currents are back-coupled to the grid. Fig. 3 shows a twovalve circuit with intervalve reaction. The first valve V<1> is a high-frequency amplifier whilst the valve V<2> is fed with both high and low frequency currents through the coils L<2>, L<3> and the transformer T<1>, T<2> respectively. The output circuit is back-coupled through a coil L<4> with the coils L<2>, L<3>. According to the Provisional Specification, the crystal detector may be inserted across the aerial circuit in series with the primary of a step-up transformer, the secondary of which is connected between the filament of the valve and the primary winding of the transformer. The crystal is also connected directly to the grid of the valve
Patent GB-824747-A (GB)
Title: Improvements in or relating to the production of fabrics and woven or knitted articles
IPC: D02G1/02
Filed: 1957-10-02
Abstract: 824,747. Finishing yarns; woven fabrics. HEBERLEIN & CO. A.G. Oct. 2, 1957 [May 25, 1957], No. 30883/57. Classes 120(3) and 142(4) Single, intertwisted or plied yarns of synthetic organic textile fibres e.g. polyamide or polyester fibres, which have been crimped by high-twisting, heat-setting and backtwisting are subjected to a moist or dry heat treatment e.g. by means of dry air or steam, in stretched condition and under constant tension to effect a temporary reduction of the latent crimp. Crimped yarns, optionally in combination with different yarns e.g. uncrimped yarns of the same fibre material, smooth or creped yarns of regenerated cellulose or cellulose derivatives, or silk, are formed into a woven or knitted fabric or article e.g. woven fabric having warp of creped rayon yarn and alternate weft yarns crimped by opposite high-twisting, or warp of smooth polyamide yarn with weft of balanced plies of crimped yarn. The fabric or article is subjected to a wet or steam treatment which may be combined with or form part of normal finishing treatments e.g. goffering, scouring, rinsing, bleaching, washing, drying, in order to restore, at least partly, the original latent crimp of the yarn and may finally be set and shaped by a moist or dry heat treatment, e.g. steaming on a tenter frame. In the treatment for reduction of latent crimp, backtwisted yarn may be wound under tension on bobbins and heated or passed continuously in stretched condition through or in contact with a heating apparatus, e.g. an electrically heated metal tube or surface, and/or the heat treatment may be combined with another operation, e.g. a false-twisting stage of the crimped yarn production.
Patent GB-739168-A (GB)
Title: Improvements relating to directional waveguide couplers
Inventor: COOPER DENNIS CYRIL
IPC: H01P5/18
Filed: 1952-12-05
Abstract: 739,168. Wave-guides. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Nov. 18, 1953 [Dec. 5, 1952], No. 30946/52. Class 40 (8). Rectangular wave-guides X,X<SP>1</SP>, Y, Y<SP>1</SP> having the broad wall of one against the narrow wall of the other, are coupled by a pair of oblique, parallel slots, spaced apart by a distance of approximately #g/4, so that some of the energy transmitted along the guide X, X<SP>1</SP> in the direction of the arrow may be fed downwards along the guide Y, Y<SP>1</SP>. The guides may be arranged obliquely instead of at right angles to each other.
Patent GB-323075-A (GB)
Title: Improvements in or relating to gaskets for high pressure gas or like joints
IPC: F16J15/08
Filed: 1928-10-25
Abstract: 323,075. Griffith, C. C., and Cooper's Mechanical Joints, Ltd. Oct. 25, 1928. Joint-making packing.- The gasket comprises a number of superimposed laminations of metal 1 - - 4, Fig. 3, such as sheet brass or copper. The peripheral edge of the sheet, and the edges of the bolt holes, water passage holes 8, Fig. 2, and cylinder holes 7, are provided with narrow bands 5 of copper or other ductile metal standing above the general surface. The laminations may be held together by pins or tongues.
Patent GB-792050-A (GB)
Title: Antiseptic articles and method of producing the same
Inventor: COHEN SYLVAN I
IPC: A61L2/00
Filed: 1956-10-11
Abstract: An antiseptic composition comprises a phenyl mercury lactate or a phenyl mercury compound capable of forming a phenyl mercury lactate with lactic acid, e.g. phenyl mercury hydroxide or phenyl mercury acetate, in lactic and formic acids, and is used for rendering articles antiseptic by treating therewith and finally drying. Specification 791,874 is referred to.
Patent GB-1153430-A (GB)
Title: Improvements in or relating to a Process and Apparatus for the Production of Hydrogen Peroxide
Inventor: BURDON MARTIN CLIVE
IPC: C01B15/023
Filed: 1965-07-21
Abstract: 1,153,430. Separating liquids. LAPORTE CHEMICALS Ltd. 27 June, 1966 [21 July, 1965], No. 31034/65. Heading B1D. [Also in Division C1] Apparatus for separating an aqueous phase, containing hydrogen peroxide, from an organic phase, comprising methyl cyclohexyl acetate and alkylated anthraquinone, comprises a chamber into which extends a partly perforated inlet tube, carrying 'two annular glass fibre cartridges, end to end and enclosed by cylinders or wrapped layers of knitted polyethylene, polypropylene or polytetrafluoroethylene. The liquids pass outwards through the cartridges and layer, whereby the aqueous phase droplets are enlarged and settle out in a downstream sump having two outlets at different levels. The cartridge pores may be 1 to 100 microns diameter, the layers may have 4 to 60 meshes per square inch. The process is applied to making hydrogen peroxide, in which the anthraquinone, which may be 2-ethyl, 2-t-butyl or 2-amyl-anthraquinone is mixed with the methyl cyclohexyl acetate and hydrogenised to form quinol which is then oxidised. The hydrogen peroxide is then extracted by contact with water, producing the mixture to be separated.
Patent GB-864330-A (GB)
Title: Method of stripping epidermal material from grains
IPC: B02B3/00
Filed: 1958-09-29
Abstract: In stripping epidermal material from cereal grains, such as wheat, rye, oats, and brown rice, having laminated bran coatings interbonded by films which are disruptively reactive to moisture, the cereal grains are wetted with water, e.g. 3,5 to 7,0 % of water based on the weight of the grains, to moisten the epidermal material and so soften the bonding films, agitated, at first moderately, to remove moisture from the surface of the grains, and then under gentle controlled pressure insufficient to fracture them, to remove the loosened epidermal material, winnowed to separate the detached epidermal material from the stripped grains, tempered, e.g. for two hours, and again agitated, under gentle controlled pressure, and winnowed to complete the separation of the epidermal material from the grains. The grains may attain a temperature of 100 DEG F. during agitation. The cleaned grains may be finally dried.  During agitation, detached epidermal material may leave the agitating apparatus through a screen.
Patent GB-1120844-A (GB)
Title: Improvements in screws
IPC: F16B35/06
Filed: 1965-07-22
Abstract: 1,120,844. Screws. J. H. T. HARRINGTON, and C. A. L. CHAPMAN. 4 July, 1966 [22 July, 1965], No. 31170/65. Heading F2H. The undersurface of a screw head has tooth. like or cutting, or roughening projections 11, in order that it may cut its own counter-sink. The projections may be formed by knurling or punching, or by the electric arc deposition of metal, or metal and other abrasive particles.
Patent GB-950808-A (GB)
Title: Method of and apparatus for the detection of microwaves
Inventor: DAGAI MICHEL
IPC: G01R29/08
Filed: 1962-08-14
Abstract: 950,808. Semi-conductor devices. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 14, 1962 [Aug. 25, 1961], No. 31212/62. Heading H1K. [Also in Division H4] A device for detecting a freely travelling beam of microwave energy (see Division H4) comprises a semiconductor crystal 11 disposed in the double tapered hole 7 of a metallic holder 6 having a metallic insert 71 and attached thereto by the metallic member 12. A tungsten wire 13 (that is a " cats whisker ") is soldered to an insulated metallic rod 14 and has its free end in contact with the crystal 11. The output signal is collected from the rod 14 by a coaxial cable (not shown), the screen of which is attached to the holder 6. A similar device (Fig. 7, not shown) for detecting two such beams (i.e. an interferometer) has two double tapered holes meeting at right-angles. In use a standing wave is established between a focusing element and a reflecting element and the detector device is positioned therebetween at the position in which the electric field is of maximum amplitude.
Patent GB-879132-A (GB)
Title: Improvements in or relating to dampers
IPC: F16F9/14
Filed: 1958-09-30
Abstract: 879,132. Dashpots. HOUDAILLE INDUSTRIES Inc. Sept. 30, 1958 [Oct. 7, 1957], No. 31226/58. Class 108(3). A rotating vane hydraulic damper in which a piston 15 carries the rotating vanes, has a fluid replenishing chamber 56 located within the rotating piston. A spring biased piston 57 urges the replenishing fluid from the chamber 56 through a passageway 68 to a damping chamber 39. The piston 15 has two opposite vanes which in conjunction with two stationary vanes on a casing 11 divide the interior of the casing 11 into four working chambers. Opposite pairs of chambers are connected by radial bores 40, 42. The bore 42 is controlled by an orifice control valve 45. The valve 45 is turned within a sleeve 44 to compensate for variations in temperature by means of a thermostatic coil 50. A check valve 75 prevents backward flow of fluid from the replenishing chamber 56 out through the end of the piston rod 61. Check valves also prevent return of fluid from the working chambers to the replenishing chamber.
Patent GB-1388407-A (GB)
Title: Mandrel for piercing tube blanks
IPC: B21B25/00
Filed: 1972-07-05
Abstract: 1388407 Forging-punches FAGERSTA AB 5 July 1972 [20 July 1971] 31334/72 Heading B3H [Also in Division C7] A mandrel for piercing tube blanks comprises a body 10 of a cobalt alloy and a tip 11 of a nickel alloy, both the body and tip having a carbon content below 0À20% preferably less than 0À04%. Various cobalt alloys for the body and nickel alloys for tip are described.
Patent GB-279668-A (GB)
Title: Improvement connected with folding hoods for motor road vehicles
IPC: B60J7/06
Filed: 1926-12-10
Abstract: 279,668. Salmons, G., and Balls, A. H. Dalby-. Dec. 10, 1926. Hoods.-In hoods having means for pressing the side edges against the horizontal upper part of the windows an inextensible cord, wire, &c. A is secured to the front rail B and to the rear falling pillar C whereby the side portions D<1> of the hood are pressed against the rail F. If a gutter is provided the cords &c. may project thereinto. In a modification the side portions D<1> and the cord &c. A are carried by a member G<2> of hinged members secured to the hoop stick H.
Patent GB-623760-A (GB)
Title: Improvements in and relating to the preparation of boron hydrides
IPC: C23C16/00
Filed: 1946-10-22
Abstract: Boron hydrides, e.g. diborane (B2H6), tetraborane (B4H10), pentaborane (B5H9), hexaborane (B6H10) and decaborane (B10H14) are made by reacting a boron halide with a hydride of an alkali or alkaline earth metal heated to 150-400 DEG  C. and separating, e.g. by condensation and fractional distillation, the boron hydrides formed from the other products of reaction.  The boron halide may be employed in vapour form mixed with hydrogen or inert gases such as nitrogen, helium, argon or krypton.  Mixtures of boron halides and mixtures of the metal hydrides may be used, and the metal hydrides may be mixed with an alkali metal, an alkaline earth metal, magnesium, zinc or aluminium.  An unstable compound, diboranemonochloride is formed during the reaction.  Specification 623,761 is referred to.
Patent GB-408724-A (GB)
Title: Improvements in resilient wheels
IPC: F16H55/14
Filed: 1932-11-07
Abstract: 408,724. Yielding gear-wheels. WHITE, H. G., 58, Trap Lane, TAYLOR, H., 29, Edale Road, both in Ecclesall, Sheffield, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Nov. 7, 1932, No. 31385. [Class 80 (ii).] Either the rim 1 or the hub 5 of a circumferentially-yielding gear or other wheel, has pairs of radial lugs 2 between which are lugs 6 on the other member, a driving connection being effected by pins 8 surrounded, where they pass through one set of lugs, by bushes 4 of initiallv stressed indiarubber or other elastic material. The pins 8 may, as shown, be tapered to stress the rubber initially, or they may be cylindrical and pass through " silentbloc " bushings, i.e. bushings of rubber compressed between internal and external metallic sleeves. The lugs 2, 6 are of such size that the rim and hub, with the bushings 4 in position, can be assembled by relative axial movement followed by a relative turning movement. The pins 8 are a driving fit in the lugs 6, and, to facilitate removal, there is a tapped hole 11 on each side of the pin-holes in the lugs. These holes 11 are engaged by screws passing freely through holes in a loose plate having a central aperture in which screws a pressure-bolt bearing on the pin 8.
Patent GB-218569-A (GB)
Title: Reed for weaver's looms
IPC: D03D49/62
Filed: 1923-12-14
Abstract: 218,569. K÷nig, R. Dec. 14, 1923. Reeds. - In a reed of the kind having only straight blades and comprising a reed fixed to the lay and a relatively movable reed which can oscillate backwards and forwards in the direction of the warp threads, the movable reed c is mounted at its upper end to rock on a pivot d on the front side of the reed b which is fixed to the lay a. For adjusting the reed c, the pivot d is journaled between two pairs of brackets f<1>, f<2> , the brackets f<1> being adjustable angularly with respect to the brackets f<2> and being held by nuts h. The reed c moves into the plane of the reed b during the beat-up, but is disengaged by its own inertia and gravity during the backward stroke of the lay. The disengagement may be assisted by springs.
Patent GB-965505-A (GB)
Title: Improvements in or relating to sprung vehicle seats
IPC: B60N2/52
Filed: 1962-08-16
Abstract: 965,505. Resilient seat mountings; adjustments. F. BRENDEL. Aug. 16, 1962 [Aug. 31, 1961], No. 31468/62. Headings A4J and A4U. [Also in Division F2] A vehicle seat support comprises a base plate 1 rigidly mounted on the vehicle body, vertical walls 2, 3 mounted on the plate, parallel links 8, 9, 10 pivoted to walls 2, 3 and to the frame of the seat, which has side walls 4, 5, leaf springs 17, 18, 19 held together by clamping screw 20 and anchored in a cam 21 which bears upon a pressure block 22 and a shock absorber having a piston 16 and cylinder 15 is connected diagonally across the parallelogram to clamp the seat movement. The longer arm of the spring bears on a bolt 26 connected to a traverse 29 slidable in notched slots 28 in the side walls 4, 5 of the seat frame so that the amount of springing may be adjusted and a screw spindle 24 mounted on a traverse 30 connecting walls 2, 3 and contacting the end of the spring may be rotated by a hand wheel 25 to alter the angle of the springs and adjust the height of the seat. U.S.A. Specification 2,531,572 is referred to.
Patent GB-156984-A (GB)
Title: Improvements relating to folding hood or head fittings of vehicles
IPC: B60J7/12
Filed: 1919-12-16
Abstract: 156,984. Cheston, A. S. Dec. 16, 1919. Hoods. - Relates to folding hoods wherein the cant-rail is connected to the pillar by jointed links one end of which is extended rearwardly into an arm connected to the rear stay so that the lowering of the pillar reduces the overhang of the cantrail, and consists in means for locking the hood in its extended position. The pillar 1 carries a metal plate 2 the upper end of which is connected by a link 4 to the cant-rail 5. The rear end of the link 4 is extended into an arm 7 jointed to the upper end of a rear stay 9 of which the lower end is hinged to one cheek of a bracket 11, a parallel cheek of which supports the spring lifting-barrel 22. The cantrail 5 is also connected to the pillar by togglelinks 13, 14 the latter of which is extended rearwardly into an arm 16 connected by a link 17 to the rear stay 9 at 18. When the hood is extended, the link 17 and arm 16 form a locking strut. The link 14 also carries a wedge-shaped lug 19 adapted to engage a recess 20 in a plate 21 on the cant-rail to ensure lateral rigidity.
Patent GB-165122-A (GB)
Title: Means for displacing and/or hoisting a life boat or raft
IPC: B63B23/18
Filed: 1919-12-16
Abstract: 165,122. Schat, A. P. Dec. 16, 1919. Transporting boats and rafts across ship's deck. -In launching gear in which boats or rafts are lowered in succession from a single pair of davits, the power required to transport the inboard boat into position beneath the davits, or to hoist the same as a preliminary to lowering, is derived from the momentum of the descending boat or raft. The fall 4 controlling the boat &c. which is being lowered is passed round a drum on a shaft 7 and then runs to a bollard 6. Secured on the shaft 7 is a second drum 10, attached to which is one end of a rope 11 which passes round a sheave 16 on the carriage 14 of an inboard boat 13, and is then secured to the deck at 12. The fall in running out thus causes the boat to be moved into position beneath the davits.
Patent GB-1485567-A (GB)
Title: Methods of fault location for fourwire carrier frequency systems
IPC: H04B17/40
Filed: 1975-07-28
Abstract: 1485567 Testing unattended repeaters TEKADE FELTEN & GUILLEAUME FERNMELDEANLAGEN GmbH 28 July 1975 [27 July 1974] 31557/75 Heading H4R In an arrangement for locating faulty repeaters in a four wire carrier frequency system in which pulse signals are transmitted from one terminal station, and are coupled at the output of each repeater amplifier in the outgoing line to the input of each repeater amplifier in the incoming line, to be detected at the terminal station as a series of pulses, one for each repeater up to the point of failure, the coupling networks between the outgoing and incoming lines are arranged in a small number of cases to be different from the remaining coupling networks, with the different networks arranged at approximately equal separation along the length of the system so that, on display of the returned pulses at the terminal station, the position of the faulty repeater is more easily determined as beyond an observed number of repeaters equipped with different response networks plus an observed number of repeaters equipped with the standard networks. As described a system having fifty repeaters Z1 to Z50 has every tenth repeater Z10, Z20 &c., equipped with a coupling network consisting of a band pass filter F tuned to the pulse carrier frequency. The remaining repeaters are equipped with coupling networks consisting of a band pass filter F together with an attenuator T. At the terminal station S each pulse P transmitted from the test generator G1 produces, on an oscilloscope in the analyser A a display of repeated pulses separated by a distance corresponding to the return transit time of a pulse between adjacent repeaters with every tenth pulse being larger than the remaining pulses to allow easy determination of the position of a fault. In a modification of the arrangement, Fig. 5 (not shown), the "different" coupling networks can be tuned to a frequency different from that of the standard coupling networks so as to respond to a pulse of that frequency which can be transmitted at the same time or at a time different from that of the pulse of the standard frequency. At the receiver the pulses of the different frequency can be displayed in inverted polarity to those of the standard frequency to make them more easily distinguished. The pulse display apparatus may have a time base adjustable to display only the pulses returned from a group of repeaters between a selected two of the repeaters having coupling networks of different characteristic to allow determination of the exact position of a fault.
Patent GB-1194583-A (GB)
Title: Unsaturated Polyester Resins
IPC: C08G63/553
Filed: 1967-07-10
Abstract: 1,194,583. Unsaturated polyester resin. SCHERING A.G. 10 July, 1967 [9 July, 1966], No. 31653/67. Headings C3P and C3R. An unsaturated polyester resin is prepared using a polymeric fatty alcohol as at least a part (e.g. 10-100 equivalent per cent) of the polyalcohol content. The polyester has terminal groups: O-CO-H = CH-COOR in which R is a hydrogen atom or an unsubstituted or substituted alkyl, cycloalkyl or aralkyl group containing up to 20 carbon atoms. The polymeric fatty alcohol may be pre-extended by reaction with an aldehyde with acetone formation, with an alkylene oxide for given ether linkages or with a lactone, e.g. #-caprolactone with ester formation. At least one α,#-unsaturated dicarboxylic acid (e.g. maleic or fumaric acid) may be used to form at least a part (e.g. 20-100 equivalent per cent) of the polycarboxylic acid content. The unsaturated polyester resin may be cured by mixing with a copolymerizable ethylenically unsaturated monomer, e.g. styrene or vinyltoluene together with a polymerization catalyst, e.g. an organic peroxide. Conventional fillers and pigments may be present.
Patent GB-360635-A (GB)
Title: Improvements in fluid feed valves for machine tools
IPC: B23Q5/26
Filed: 1930-10-22
Abstract: 360,635. Liquid - pressure engines. WALLS, A. G. and WALLS, R. N., 7, Westbourne Grove, Ashton-on-Mersey. Oct. 22, 1930, No. 31694. [Class 69 (ii).] In fluid-pressure mechanism for reciprocating parts of machine tools, the driven member contacts with fixed stops at the end of its stroke and reversing is actuated solely by fluid pressure. The reversing valve A has ports 3, 12, is located in its end positions by a spring plunger engaging a recess 31 or 32, and its end portions are disposed in cylinders 16, 17. In the position shown, the end 7 of the working cylinder is connected to a pump P and the cylinder 16, and the end 9 to exhaust 15 and the cylinder 17. When the piston 8 is stopped at the end of its stroke in the direction Y, pressure in the cylinder 17 falls and the valve A is moved by the pressure in the cylinder 16, the movement of the valve operating a cam shaft 34. A cam 35 acts through a lever 38 to operate an auxiliary valve B,to connect the cylinders 16, 17 to the pump and exhaust respectively, and to close the communications between these cylinders and the working cylinder. When the cam shaft has completed half a revolution, a cam 51 disengages a pawl 52 from a recess in the valve B, a spring 50 moves the latter into inoperative position, and a second auxiliary valve C is moved to reconnect the working cylinder with the cylinders 16, 17.
Patent GB-219871-A (GB)
Title: Improvements in self-acting fire extinguishing apparatus
IPC: A62C99/00
Filed: 1923-12-18
Abstract: 219,871. Stephens, A. J., (Groer, A., and Huebner, H.). Dec. 18, 1923. Sprinkling apparatus and systems.-Fireextinguishing gas such as carbon dioxide, stored under pressure in a reservoir e, is discharged rapidly through pipes h, d of large bore by the automatic opening of a differential, valve m, i on the escape of compressed gas from a pipe network b of small bore provided with outlets a normally closed by fusible plugs of sulphur &c. Manual actuation may be effected by means of a valve f.