baber/WOPTO huggingface dataset:
Patent GB-802258-A (GB)
Title: Radio beacon transmitter
Inventor: HAWKES HENRY WILLIAM
IPC: G01S1/02
Filed: 1956-12-14
Abstract: 802,258. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. Dec. 14; 1956, No. 38291/56. Class 40 (7). At a radio beacon a cardioid radiation pattern of carrier frequency f is rotated at n R.P.S. (e.g. n = 30), a radiation pattern of slightly different carrier frequency f2 and having 2x (e.g. 2x = 10) symmetrical lobes of alternate polarity is rotated at n/2x (e.g. 3) R.P.S. and a n c/s. modulation reference signal is radiated omnidirectionally so that at a mobile receiver the amplitudes of the received signals of frequency f and f2 will each be modulated at n c/s., the bearing of the mobile receiver relative to the beacon being given unambiguously by the relative phase of the reference and f1 " coarse " modulation signals and a more precise but ambiguous indication being given by the relative phase of the reference and f2 " fine " modulation signals. Beacon. As shown in Fig. 1, one output from an oscillator 3 of frequency f is applied through an amplifier 4 to a horizontal dipole rotated at 30 R.P.S. by a motor 8 and another output from the oscillator 3 is amplitude modulated at 9 by a subcarrier of frequency f3 (= 10 kc/s.) from an oscillator 6 which is frequency modulated at 7 by the 30 c/s. reference signal produced by a tacho-generator 8 coupled to the motor 2, the output from modulator 9 being applied through an amplifier 10 to a fixed non-directional aerial 5; the radiations from aerials 1 and 5 combine to produce a cardioid pattern rotating at 30 R.P.S. The rotating 10-lobe pattern is produced by an aerial 13 of the type disclosed in Specification 744,615 which is rotated at 3 R.P.S. by the motor 2 via a 10: 1 step-down gearing 12 and is energized from an oscillator 14 of frequency f2 via an amplifier 15. The frequency of the oscillator 14 is automatically controlled to maintain the frequency difference ( f2 - f1) equal to the frequency of a 7 kc/s. oscillator 17 by means of a mixer 15, filter 16, phase comparator 18 and reactance valve 19. Speech signals are transmitted from the aerial 5 by coupling a microphone 11 to the modulator 9. At the mobile receiver, Fig. 2, the signals of frequency f and f2 are applied through the R.F. and I.F. stages 21, 22 to a detector 23 whose output comprises (1) the subcarrier of frequency f3 frequency modulated by the 30 c/s. reference signal (2) the 30 c/s. coarse bearing modulation signal due to the rotation of the cardioid radiation pattern, and (3) a beat frequency ( f2 - f 1 ) amplitude modulated by the 30 c/s. fine bearing modulation signal due to rotation of the multi-lobe pattern. These three outputs are separated by filters 24, 28, 30 and the 30 c/s. reference and fine bearing signals are detected at 25 and 31 respectively, the coarse and fine bearing signals being applied together with the reference signal to phase comparators 27 and 33 controlling the coarse and fine bearing indicators 29 and 34 which may comprise a single dial with separate fine and coarse pointers.
Patent GB-1182449-A (GB)
Title: Sheet Conveying Means for Copying Machine
IPC: B41L7/04
Filed: 1967-08-21
Abstract: 1,182,449. Feeding sheets. PITNEYBOWES Inc. 21 Aug., 1967 [25 Aug., 1966], No. 38333/67. Heading B8R. In an electrostatic photo-copying machine in which an original is fed to feed roller pairs 66, 68 and 70 through a V-shaped guide path 134, 136 the plate members 134, 136 forming the guide path are readily separated in order to expose the original for easy manual removal should the latter become jammed on the feed rollers or apparatus associated therewith. The plate members 134, 136 form part of a two-part pivotal structure 130 and 130 which, when moving about pivotal axis at or near the top sides of the machine, expose to view the feed means associated with the original and, inter alia, the copy web spool 30, copy feed rollers 32 and sheet cutting means 34. The feed rollers 66, 68 and 70 are driven from a common drive and the rollers of each pair are resiliently connected in order to accommodate originals of different thicknesses. When the pivotal structure 150 is swung aside the last pair of feed rollers 70 is tripped apart.
Patent GB-1223475-A (GB)
Title: Improvements in and relating to sliding clasp fasteners
Inventor: SPINDLER SIEGFRIED WOLFRAM
IPC: A44B19/12
Filed: 1968-08-12
Abstract: 1,223,475. Sliding clasp fasteners. S. W. SPINDLER. 12 Aug., 1968 [12 Jan., 1968 No. 38366/68. Heading E2S. A sliding clasp fastener includes two elements, each comprising a row of coupling members 2 formed from a continuous square- or rectangular-section coiled plastics filament 7, each turn constituting two arcuate portions bounding a rhombus-like opening 6, and being twisted axially. Heads 1 formed on the outer ends of the members 2 engage in the openings 6 of the other element on operating a sliding clasp (not shown). A stringer tape 3 supports each element by means of sewing thread 4, neighbouring rear parts 5 of the turns of each element being held in contact with each other at 8.
Patent GB-1219890-A (GB)
Title: Improvements in or relating to gyroscopic devices
Inventor: HERMAN HARRY HIRSCH JR
IPC: G01C19/14
Filed: 1968-01-08
Abstract: 1,219,890. Pumps operating by electromagnetic interaction with fluids. H. H. HERMAN JR. 8 Jan., 1968, No. 38480/70. Divided out of 1,219,415. Heading H2A. [Also in Division G1] In a gyroscope having a conductive fluid as its inertia mass, the fluid is contained in a hollow sphere 1 and is caused to rotate by a rotating magnetic field in a broad equatorial band of the sphere, there being a plurality of pairs of diametrically spaced contacts 5 penetrating the sphere and being connected to a source of electrical power 9 and to a respective current sensing device 8 so that as the sphere tilts, different pairs of contacts engage the fluid and the respective current sensing device indicates the angle of tilt of the sphere. The rotating field is produced by coils 4, the current sensing device may be a lamp or relay and the fluid may be a gas or vapour or liquid, e.g. mercury, or a non-conductive liquid containing particles of conductive solids. In a modification, Fig. 2 (not shown), a plurality of coils are placed around the sphere so that as the sphere tilts, different pairs of contacts 5 operate relays (e.g. 16, 18) to energize different coils and so maintain the fluid in its initial plane of rotation.
Patent GB-1359522-A (GB)
Title: Light-sensitive copying compositions
IPC: G03F7/016
Filed: 1971-08-18
Abstract: 1359522 Photosensitive condensate KALLE AG 18 Aug 1971 [20 Aug 1970] 38762/71 Headings C3P and C3R [Also in Division G2] A photographic material preferably for screen stencils comprises a hydrophilic binder and a condensation product of a diazonium salt wherein the anion is an aliphatic or alicyclic monosulphonic acid with 1 to 6 carbon atoms, the condensation product having at least two units A-D and one unit B connected by a bivalent intermediate member derived from an active carbonyl compound wherein A is a radical of a compound containing two carboxylic and/or heterocyclic aromatic rings and can condense with a carbonyl group of an active carbonyl compound in an acid medium, D is a diazonium salt group attached to an aromatic carbon atom of A, and B is a radical of a compound free of diazonium groups and can condense with a carbonyl group of an active carbonyl compound in an acid medium. Preferred condensation products (with different anions) are those disclosed in Specifications 1,312,925 and 1,312,926. Specified binders are polyvinyl alcohols, gelatine, polyacrylic acid, hydroxy methyl cellulose and methyl cellulose. The material may be coated on one or both sides of a stencil support such as a steel, brass, bronze or nickel wire gauge, silk tissue, Japan paper or a perforated polymer. The material may contain a dye or a filler such as a polymeric dispersion, e.g. polyamides, polyesters, polyurethanes and vinyl polymers, oxides of Si, Ti or Al, clay or powdered glass. The material on the support may be imagewise exposed and developed to remove the unexposed areas thus producing a screen stencil.
Patent GB-1515919-A (GB)
Title: Process for beet sugar production
IPC: C13B35/02
Filed: 1975-09-22
Abstract: 1515919 Refining sugar HOKKAIDO SUGAR CO Ltd 22 Sept 1975 [28 Sept 1974] 38861/75 Heading C6B A process for manufacturing beet sugar by purifying and concentrating diffused beet juice, recovering sucrose from the concentrated beet juice so formed by boiling and centrifugal separation, treating the residue of molasses from which the sucrose has been removed with calcium saccharate, and adding the resultant saccharate cake to the juice to be purified, comprises (a) adding α-galactosidase to the molasses resulting from the centrifugal separation of sucrose thereby hydrolyzing the raffinose present in the molasses into sucrose and galactose, (b) continuously adding quick lime to the resultant raffinose hydrolyzate to produce calcium saccharate (c) continuously withdrawing from (b) substantially the same amount of the saccharate containing solution as that of the raffinose hydrolyzate being fed to step (b) and filtering and washing the saccharate containing solution to obtain a saccharate cake for addition to the juice-purifying step, while at the same time continuously withdrawing from step (b) the saccharate-containing solution in a volume 3 to 10 times that of the raffinose hydrolyzate being fed to step (b), cooling the withdrawn solution and returning the cooled solution to step (b). The molasses remaining after the centrifugal separation of sucrose may be diluted to 20‹ to 50‹ Brix and the α-galactosidase may be added thereto under conditions of pH 4À5-7 and reaction temperature of 20‹-55‹C, at a rate of 1,000,000 to 16,000,000 units per g of raffinose contained in the molasses. Preferably the raffinose hydrolyzate is deprived of the α-galactosidase and then fed, with the concentration unchanged, to step (b). The molasses subjected to the treatment for raffinose hydrolysis has a polarization of 12-20% and the resultant raffinose hydrolyzate may be fed, with the concentration unchanged, to step (b). The saccharate containing solution withdrawn in a volume of 3 to 10 times from step (b) may be cooled to a temperature such that the reaction solution in the calcium saccharate forming step will fall below 20‹C and thereafter the cooled solution is returned to step (b). Reference has been directed by the Comptroller to Specification 1389135.
Patent GB-881257-A (GB)
Title: Improvements in the production of porous plastics on the basis of polyepoxy compounds
Inventor: PETRI ROLF
IPC: C08J9/00
Filed: 1959-11-18
Abstract: Cellular polyepoxides are obtained by foaming up a stable aqueous dispersion of the polyepoxide of 40-85% by weight strength and a hardening agent which has at least two hydrogen atoms capable of reacting with epoxy groups.  If the latter are slow reacting foaming is assisted by heating the mixture e.g. up to 50 DEG  C.  Expanding agents e.g. azos and hydrazides may also be included, and also compounds which add on water with generation of heat e.g. quicklime. Other additions are protective colloids, wetting agents, organic solvents, fillers, plasticizers, dyestuffs, flame proofers and other dispersions e.g. of vinyl or acrylic polymers.  Lists of suitable material are given.ALSO:Cellular polyepoxides are obtained by foaming up a stable aqueous dispersion of the polyepoxide of 40 to 85% by weight strength and a hardening agent which has at least two hydrogen atoms capable of reacting with epoxy groups.  If the latter are slow reacting foaming is assisted by heating the mixture e.g. up to 50 DEG C.  Expanding agents e.g. azos and hydrazides may also be included, and also compounds which add on water with generation of heat, e.g. quicklime, other additives are protective colloids, wetting agents, organic solvents, fillers, plasticizers, dyestuffs, flame proofers, and other dispersions e.g. of vinyl or acrylic polymers.  Lists of suitable materials are given.
Patent GB-818047-A (GB)
Title: Process for preparing dispersions of boron compounds in oils
Inventor: HARTLEY JAMES
IPC: C10L1/30
Filed: 1956-12-21
Abstract: A clear dispersion of boric acid or an alkaline or alkaline-earth metal salt of a boric acid in an oil, which is useful as a fuel or lubricant additive, is produced by reacting an oil soluble ester of a boric acid dissolved in the oil, with water or a solution of an alkali metal or an alkaline-earth metal hydroxide in the presence of an oil-soluble surface-active agent which is the salt of an organic acid containing at least 8 carbon atoms in the molecule or an organic amino-compound or quaternary ammonium compound containing at least 8 carbon atoms in the molecule and a water-miscible organic solvent and then removing the solvent and the water from the reaction mixture. Dispersions of the acids or salts containing up to 10 per cent of the boron compounds are produced in this way and may include ammonium as well as magnesium hydroxide in addition to the normal alkali or alkaline-earth metals, the most important being sodium tetraborate, sodium metaborate and calcium orthoborate.  The weight ratio between the boron compound and stabilizing agent may be varied between wide limits but is preferably between the range of 1 : 10 and 1 : 1.  A wide range of surface active agents are specified including acids derived from carbon-, sulphur- and phosphorous-substituted fatty acids, aromatic, aliphatic and cycloaliphatic acids.  The acids may be in the form of the salts preferably of alkali or alkaline-earth metals, e.g. see Specification 586,461, but aluminium and lead may also be used.  Organic amino compounds may be primary, secondary, tertiary aliphatic or cycloaliphatic amines, naphthenic amines and certain complex polyamines which may also contain hydroxy radicals in the molecule.  The water-miscible organic solvent is one which is capable of least of forming a homogeneous mixture with up to about 10 per cent by volume of water.  Preferred are lower aliphatic alcohols and those particularly which boil below the initial boiling point of the oil medium and preferably below a 100 DEG  C., or form an azeotrope with water which boils below a 100 DEG  C. at atmospheric pressure. Ketones, esters, ethers and amines as well as ethylene glycol, tetrahydrofurane, 1,3-dioxane, and 1,4-dioxane are also used.ALSO:Trimethyl borate may be prepared by stirring together boric acid and an excess of methanol.  Lead naphthenate is prepared by metathetically exchanging the sodium salt with lead acetate solution. Neutral calcium naphthenate in a solution of iso-octane is prepared by stirring a mixture of naphthenic acid with methanol in the presence of iso-octane together with lime for 20 hours; filtering; removing a small quantity of the iso-octane by distillation in vacuum to give a clear straw coloured liquid containing 12 per cent of calcium naphthenate.  Specification 586,461, [Group IV], is referred to.
Patent GB-1281927-A (GB)
Title: Improved linen and clothes drying cabinet
IPC: D06F58/10
Filed: 1969-08-05
Abstract: 1281927 Drying cabinets DELLA ROSSA SAS 5 Aug 1969 [7 Aug 1968] 39081/69 Heading F4G In a clothes or linen drying cabinet, closed cycle circulation of hot air is produced by a thermo fan device 7a, 7b situated outside the drying chamber, and with holes or slits 13 arranged to discharge part of the damp air and to take in fresh dryer air, which is drawn in by the fan and mixed with the re-circulation air to decrease its humidity. The thermo fan device comprising a turbofan and heating elements is placed on the top of a vertical duct 7 inside a second chamber adjacent to the drying chamber and communicating thereby with upper apertures 8 and lower outlets 11 to obtain hot air re-circulation in the drying chamber. The air duct has a subsidary opening for the intake of fresh air. The hot air blown into the drying chamber is deflected down onto the supports 12 for damp articles by two inclined baffle plates 9, and 10. The cabinet is mounted on wheels and has an internal drying chamber with a false bottom wall 14 inclining towards a water discharge hole, 15 leading to an extractable container 16. The cabinet cover has its front edge shaped at an angular bevel to serve as a handle.
Patent GB-797720-A (GB)
Title: Closures for collapsible tubes or other containers
IPC: B65D47/20
Filed: 1956-12-24
Abstract: 797,720. Container closures. GASSAWAY, B. F. Dec. 24, 1956, No. 39200/56. Class 125(3). A dispensing closure has an elastic envelope 7 carrying mating concave suction cups 11, 12 of which the lateral margins 13 are disposed in abutment while the end margins 14, 15 are normally spaced from one another, the margins 14 being initially joined by a rupturable membrane 16 which is broken by digital distortion of the margins 14.
Patent GB-1523147-A (GB)
Title: Process and apparatus for computing the value of an indication obained in integrating-type digital voltmeters
IPC: H03M1/00
Filed: 1975-09-25
Abstract: 1523147 Digital voltmeter ELEKTRONIKUS MEROKESZULEKEK GYARA25 Sept 1975 [15 Oct 1974] 39272/75 Heading H3H In a digital voltmeter of the type wherein pulses fx generated at a rate proportional to the input magnitude, are counted, the count is made in 1-2-4-8 weighted B.C.D. For small negative inputs the counter is down counted and the 10's complement of the result obtained by adding 5 to each B.C.D. cell and then taking the 2's complement in 3. Larger negative inputs trigger a variable hysteresis circuit 6 which switches a relay 7 to reverse the input corrections for the next measurement cycle. The hysteresis circuit comprises a comparator which compares the value of the 1.s. counted digit and a preset hysteresis value, the comparison being carried out with a test train available from measurement period clock 4.
Patent GB-361172-A (GB)
Title: Improvements in or relating to valves
IPC: F16K5/16
Filed: 1930-12-31
Abstract: 361,172. Plug cocks. MERCO NORDSTROM VALVE CO., 343, Sansome Street, San Francisco, U.S.A.-(Assignees of Nordstrom, S. J.; 343, Sansome Street, San Francisco, U.S.A.). Dec. 31, 1930, No. 39297. Convention date, June 2. [Class 135.] Wedging or jamming.-A rotary plug valve, of the type having an automatic easing arrangement operable in advance of the turning movement of the plug, has' a rotary operating head 28 having a non-circular inner end 38 engaging a similar recess in the small end of the plug 13 ; the head 28 carries an operating lever 41, pivoted at 50, and moving between lateral abutments 57 with lost-motion, whereby on manipulating the lever the cam-like lower concave surface 53 of a screw 51 applies thrust to a rigid member or rod 46 and jacks the plug 13 from its seating before the plug is turned. The plug is urged resiliently towards the operating bead by compressed asbestos fibre &c. 24 operating through a diaphragm 18, thrust member 19, and ball 22. The operating lever is biased to a mid-position by springs interposed between the lever and the lateral abutments.
Patent GB-392993-A (GB)
Abstract: 392,993. Fittings for loading vehicles. STEWART, A. C., Inverhaggernie, Crianlarich, Perthshire. Dec. 16, 1931, No. 34813. [Class 78 (iv).] The loading device comprises a frame 113 detachably hinged to the vehicle floor 15 at 28, movable from ground level to the level of the vehicle floor 15 whilst remaining horizontal and then movable about the hinge 28, as in Specification 373,164, and the frame 113 is provided with guides, rails, or channels 115 for a wheeled trolley 116 which is run on and off the vehicle floor. The floor may be fitted with similar guides 115a. The trolley may be fitted with hinged or detachable side and end guards to form a container or for transferring livestock. For hauling the trolley on and off the frame 113, a winch drum 118 is mounted loosely between collars on the shaft 21 of the frame-operating winch, and is driven by a hand or power gear 121. For hauling the trolley on and off the frame 113, or for transferring it between the frame and the vehicle, a cable 123 is led from the drum 118 to the trolley by way of a pulley 124 on an extensible bar 127, or a pulley on the inner end of the frame 113 or on the vehicle. The spindle 21 may be held by a brake during the operation. The trolley may also be transferred to the vehicle floor by tilting the frame 113.
Patent GB-891556-A (GB)
Title: Improvements in or relating to agricultural structures
Inventor: BLATCHFORD RALPH
IPC: A01K1/10
Filed: 1959-02-23
Abstract: 891,556. Animal feeding devices. BLATCHFORD & CO. Ltd., RALPH. Feb. 23, 1961 [Nov. 23, 1959], No. 39701/59. Classes 5(1) and 5(2). A structural unit comprises at least two U-shaped supporting members having a short limb 2 and a longer limb 3, the limbs 3 of adjacent members being connected by wooden planks, concrete slabs or like panels 4 to form a wall behind which silage is stacked. The limbs 2 and base portions 1 are connected by panels 5, 6 to form a manger. One or more panels may be removed from the base of the wall 4 to enable animals to reach across the manger and feed directly from the silage. A fodder rack 9 may be hooked on to the wall and to facilitate transfer of silage to the rack, panels may be removed from the upper part of the wall. The supporting members may be formed with lugs 13 fitted bolts carrying plates 15 engageable with the underside of the slats of a slatted floor. A number of units can be placed in two parallel rows between which silage is stored.
Patent GB-1013832-A (GB)
Title: Improvements in or relating to the preparation of methacrolein
IPC: C07C47/22
Filed: 1962-10-19
Abstract: Butadiene is also obtained in the production of methacrolein by reaction of a butene-containing C4 hydrocarbon feed with oxygen in the gaseous phase and at an elevated temperature, in the presence of a catalyst material comprising antimony and vanadium or antimony, vanadium and phosphorus, in the form of an oxide or oxides.  The catalyst may be supported and may additionally contain bismuth oxide and, if desired, smaller amounts of oxides of Ti, Mn, Fe, Co, Ni, Zn, Sn, Cd, Pb, Cr and As.  In the example, the catalyst is supported on carborundum and corresponds to the composition Sb(VO3)3 + SbPO4 + Bi2O3.ALSO:The process according to claim 1 of the parent Specification is conducted by supplying the isobutene as part of a mixture of compounds wholly or mainly composed of hydrocarbons containing four carbon atoms.  The example illustrates the above process employing the catalyst used in Example 5 of the parent Specification.
Patent GB-1515408-A (GB)
Title: Electrical delay devices
IPC: H03H11/26
Filed: 1975-09-29
Abstract: 1515408 Automatic phase control MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 29 Sept 1975 [28 Sept 1974 19 Dec 1974 (2) 18 Feb 1975] 39855/75 Heading H3A In a delay arrangement, e.g. for a video signal, the signal to be delayed, 20, is modulated on to a carrier, the modulated signal is delayed, at 24, the delayed signal is demodulated with a reference signal, at 26, and means are provided for maintaining a constant phase difference between the delayed modulated signal and the reference signal. In one embodiment, Fig. 1, the delayed modulated signal and the reference signal are compared in a phase comparator 29 to produce an error signal which adjusts varactor diodes in a variable phase shifter 30 in the ref signal path. Alternatively the carrier and reference signals can be derived from different oscillators, one or the other of which is controlled by the error signal. A gate circuit 28 is also included so that comparison is only made during the sync. pulse portion of the video signal.