baber/WOPTO huggingface dataset:
Patent GB-869898-A (GB)
Title: Improvements in or relating to nuclear fusion reactors
IPC: H05H1/16
Filed: 1958-02-06
Abstract: 869,898. Nuclear fusion reactors; discharge apparatus. MIYAMOTO, G. and IWATA G. Feb. 6, 1958 [Feb. 11, 1957], No. 3858/58. Classes 39(1) and 39(4). Apparatus for producing a combined electrostatic and magnetic focusing field for a nuclear fusion reactor comprises a series of spaced parallel annular electrodes insulated from one another for producing a hyperboloidal electrostatic field, and means for producing the magnetic field. The apparatus shown in Fig. 1 comprises a sphere 1, of non-ferromagnetic material such as stainless steel, which may be evacuated through an outlet 3 and which is surrounded by a cooling tube 2. Within the sphere are a plurality of annular electrodes 11 arranged to lie on the surface of an imaginary sphere; the electrodes 11 may be hollow and cooled by water flowing through them. The mth electrode from the medium electrode is maintained at a potential where V is a reference potential, R is the radius of the median electrode, l is a reference length, and n is an integer, and is   spaced R/#3.m/n from the median electrode. This potential distribution in conjunction with a magnetic field from poles 4, 5 of appropriate strength causes all ions of a given e / m ratio starting from one point to converge at another point and to tend to pass through the centre of the electrostatic field. Ion injectors (not shown in Fig. 1) are provided midway between adjacent electrodes and tangential to the sphere formed by the electrodes; they are connected to potentials appropriate to this position. Ions injected tend to collide at the centre and undergo fusion reactions, or are scattered from the centre and subsequently return to the centre to undergo fusion reactions; electrons may also be injected to neutralize the space charge of the positive ions. The electric and magnetic fields may be increased progressively, the magnetic field strength being kept proportional to the square of the electric field.
Patent GB-487613-A (GB)
Title: Improvements in self-centering spindles for spinning frames
IPC: D01H7/04
Filed: 1937-02-09
Abstract: 487,613. Bearings. MANUFACTURE ALSACIENNE DE BROCHES ANCIENNEMENT LES FILS D'E. LATSCHA, SOC. A.R.L. Feb. 9, 1937, No. 3874. Convention date, March 6, 1936. [Class 12 (i)] In a combined bolster and foot. step bearing an unsplit ring 4 of rubber, cork or other rubber-like material is tight-set on the sleeve 2 and with a slight degree of compression in the bolster casing 2. As shown, the ring 4 engages a recess 5 on the outside of the sleeve 2.
Patent GB-470258-A (GB)
Title: Improvements in the manufacture and production of unsaturated hydrocarbons
IPC: C07C4/02
Filed: 1936-02-08
Abstract: Gaseous olefines and acetylene are produced by causing hydrogen which has been exposed to an electric arc immediately to act on vaporous hydrocarbons boiling below 300 DEG  C.  The hydrogen to be passed through the arc may be admixed with or replaced by gases capable of splitting off hydrogen in the arc, for example, hydrocarbons. Suitable hydrocarbons boiling below 300 DEG  C. are methane, ethane, propane, butane and readily volatile hydrocarbons such as benzines, hydroaromatic hydrocarbons and other light oils. The effluent gases, which are rapidly cooled, contain up to 7 per cent of acetylene, and up to 12 per cent of olefines.  When the hydrocarbon/activated hydrogen ratio is low, more acetylene and less olefines are formed, and vice versa.  The olefines produced consist of ethylene, propylene, butylene and higher homologues. Diolefines such as butadiene also occur, good yields being obtained when hydroaromatic hydrocarbons, e.g. cyclohexane or tetrahydronaphthalene, or petroleum hydrocarbons of preponderatingly naphthenic nature are used alone or in admixture with other hydrocarbons.  Vinyl acetylene and diacetylene may also be formed.  The diolefines formed, after separation of the unconverted initial materials in liquid form, may be enriched by absorption by means of active masses such as active carbon or silicic acid, and expelling with steam.  Examples disclose the use of an electric are furnace having one rod-shaped and one annular electrode of tungsten, and of a furnace of the nature of a Schönherr furnace.  The gas mixture may be cooled by spraying with water.
Patent GB-432910-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/36
Filed: 1934-02-06
Abstract: 432,910. Safety razors. POTTER, E., 3, Staple Inn, High Holborn, London.-(King, L. J. ; Morgan, Colorado, and Klahn, E. ; 42, SW 114th Street, New York, both in U.S.A.) Feb. 6, 1934, Nos. 3899 and 3900. [Class 30] In mechanical razors in which a face-camroller 5 is mounted on a spindle 6 to rotate in a central slot in a cover plate 2, the saddle 9 carrying the pin 12 by which the blade 17 is reciprocated is suspended on the spindle 6. The locating pins 13 ... 16 may be of the form described in Specification 422,358. The blade support 3 is slotted at 19 to permit lather to escape.
Patent GB-680566-A (GB)
Title: Improvements in or relating to wood heel attaching machines
IPC: A43D79/00
Filed: 1950-02-15
Abstract: 680,566. Heel-attaching machines. POCHIN, H. W., BROMLEY, J. H., and DEACON, A. J. May 11, 1951 [Feb. 15, 1950], No. 3915/50. Class 17 (i). [Also in Group XXII] A heel 62, Fig. 6, is held on the heel seat of a lasted shoe upper 61 on a last 89, to prevent movement while the heel attaching cement is setting, by a screw 94 which after being pushed through the insole 92, is automatically rotated by engagement of clutch members under thrust, by a power driven screw-driver bit 3 operating through a hollow spindle 2 inserted in a hole 91 drilled through the last. The bit 3 is retracted, on completion of the screwing operation by a reversal of the thrust by reversing supply of pressure air to a cylinder 26 by which the thrust is applied; by an adjustable trip mechanism, or by gravity, or by a spring. The thrust acts through a compression spring 29, Fig. 3, which is collapsed under the thrust,' when the tip of screw penetrates the isole, to permit the inter-engagement of two clutch members 14, 20, mounted for axial movement, to cause the bit 3 to be rotated by belt 39 from motor 38 and then to advance it through the spindle 2. A heel clamp 51, Fig. 2, 6, comprising a bell-crank lever 46 pivoted on a floating member 58 and operated by a pneumatic cylinder 40 and a linkage 44, 45, is first swung into engagement with the heel and then, by depression of the member 58, a heel tread plate 54 adjustably carried on a member 55 thrusts downwards upon it. The last-crown 90 is adjustably supported on a member which may be advanced automatically up to it when the last 89 is positioned in the machine, by the means for actuating the heel clamp, and is then locked in position. The machine is under control of a treadle 130 which actuates the last-crown support and of a hand valve 117 at the front of the machine which brings the screw driving mechanism into operation. Pressure reducing valves 110, 129 (not shown) are provided to suit different air supply pressures and to balance the thrusts applied to the screw driver bit and the clamp. A valve 111 regulates rate of penetration of the screw. Specification 223,959, [Class 17 (i)], is referred to.
Patent GB-561895-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C1/56
Filed: 1941-03-25
Abstract: 561,895. Flexible ladders. REES, L. R. March 25, 1941, No. 3988. [Class 20 (ii)] A flexible ladder is formed of sections attached by chain d, each section comprising an inner member b of steel wire joined to an outer framework member a also of steel wire ; the inner member may be circular, square, or polygonal and the outer member square, rectangular or polygonal. Stiffening members c are secured across the corners .of the outer member where the chains are attached and cords p<1>, p, may be attached to alternate sections and connected together so that the sections are caused to lie flat on each other for storage by pulling on the common cord p<2>. The lower portions of the ladder may be weighted.
Patent GB-655069-A (GB)
Title: Diversity receiver
IPC: H04L1/06
Filed: 1948-02-11
Abstract: 655,069. Radio signalling; receiving systems. RADIO CORPORATION OF AMERICA. Feb. 11, 1948, No. 4037. Convention date, Feb. 25, 1947. Drawings to Specification. [Class 40 (v)] [Also in Group XL (b)] In a frequency diversity radio telegraph system employing different tone frequencies for each " mark " and " space" the tone frequencies are all frequency-changed to a higher frequency before rectification and determining of which diversity channel gate tube is to be opened in accordance with the best signal so that the delay due to the smoothing members of the differential . rectifier in the signal strength comparison circuit is reduced and rapid switching between different channels permitted. Each diversity channel may be raised to the same mean higher frequency, e.g. 50 ke/s., by separate local oscillators, before comparison by a signal strength sensing arrangement, producing a control signal operating triggering circuits in turn controlling gating valves, all as described in prior Specification 635,263. The mark and space signals may be detected before application to other control grids of the gate valves as in U.S.A. Specification 2,460,786. Specification 619,122 also is referred to. The Specification as open to inspection under Sect. 91 describes also space diversity receivers in which the diversity channels are raised in frequency before signal strength comparison, producing a control voltage operating a locking circuit controlling gate valves (Fig. 1, Cancelled, not shown), or raised in frequency before application to frequency shift detectors, all connected in parallel to the grid of a valve selfbiassed to cut-off for all except the strongest signal input (Fig. 3, Cancelled, not shown). To this end the signal levels are adjusted to just above the level producing limiting in the current limiters feeding the detectors. The selected output then feeds a tone keyer and recorder. This subject-matter does not appear in the Specification as accepted.
Patent GB-1044566-A (GB)
Title: Improvements in or relating to the manufacture of steel balls
IPC: C21D1/00
Filed: 1964-01-30
Abstract: A hardened steel ball is heated at 130 DEG C upwards for 1-15 hours in an oil bath to produce a permanent increase in volume of at least 0.25%. In a specific example an increase of 0.3-0.57% is achieved by heating for 12 hours at 200 DEG C. a steel ball containing 1% C., 0.25%Si, 0.35%Mn, 0.03%P, 0.025%S and 1.55%Cr.
Patent GB-559679-A (GB)
Title: Improvements in and relating to fluid controlling valves
IPC: F16K17/00
Filed: 1942-03-30
Abstract: 559,679. Valves. SAUNDERS VALVE CO., Ltd., and SUTTON, F. March 30, 1942, No. 4214. [Class 135] A self-closing and self-locking valve operating on a fall of pressure in the conduit controlled by the valve is fitted with an auxiliary valve adapted on fall of pressure to bring fluid pressure to bear upon a piston operatively associated with the valve to close it. In the form shown in the Figure a diaphragm valve 1 of the weir type is loaded to close by a spring 4 arranged between a comb 6 meshing with a fixed comb 5 and a piston 8 normally resting against an adjustable abutment 23. A spindle 11 fixed to the comb 6 is formed with a valve face 9 adapted to co-operate with an adjustable seat 12 connected through a pipe 13 fitted with a three-way cock with the inlet side of the main valve. In the event of the pressure falling, initial movement of the diaphragm opens the valve 9 so permitting inlet pressure to act on the piston moving it into engagement with a collar 22 on the spindle to move the diaphragm to its seat where it is held by the compressed spring 4 the piston resting on a shoulder 25. To reopen the main valve the pressure acting on the piston is vented to atmosphere by a manual operation of the three-way cock which cock is closed by a spring when the hand is removed. Specification 516,569 is referred to.
Patent GB-215463-A (GB)
Title: Process for production of fertilising material
IPC: C05C5/02
Filed: 1923-02-13
Abstract: 215,463. Christensen, C. P. Feb. 13, 1923. Manures.-A nitrogenous manure is made by directing the combustion gases from a furnace through a, drum, preferably rotary, containing salt or chalk, and nitric acid, a heated watery mixture of boracic acid and calcium carbonate being simultaneously directed into the drum.
Patent GB-439453-A (GB)
Title: Improvements in or relating to facsimile printing telegraph receivers
IPC: H04L21/04
Filed: 1935-02-11
Abstract: 439,453. Copying -telegraphy. KLEINSCHMIDT, E. F., 1869, Broadview Avenue, Highland Park, Lake, Illinois, U.S.A. Feb. 11, 1935, No. 4329. Convention date, Feb. 19, 1934. [Class 40 (iii)] In a copying- telegraph receiver, the recording device operates continuously while the tape is automatically stopped after each character has been recorded without the transmission of a stop signal. The tape 31, Fig. 1, is fed forward by a rotating shaft 5 driven by a friction clutch from the continuously rotating shaft 2 on which is the printing roller 33. Normally the tape-feed shaft 5 is maintained stationary by a lever 10 engaging with a cam 8 integral with the shaft 5. An incoming signal is fed to the moving-coil 25, Fig. 2, to actuate the printing bar 30 to press the tape against the continuously rotating printing- roller 33. The moving-coil 25 also actuates the lever 12 to remove the stop 10 from the cam and allow the tape to be fed forward. The stop 10 engages with the next notch 9 on the cam to stop the tape feed after the character has been recorded. In a modification, the moving coil completes a circuit to energize a relay thereby withdrawing the stop from the cam, Fig. 3 (not shown). Alternatively the stop may be lifted into engagement with a rotating threaded rod so that the stop prevents the rod rotating after the time interval of one signal, Figs. 4 and 5 (not shown). To space the words, a dash maybe transmitted. Specification 380,217 is referred to.
Patent GB-1103190-A (GB)
Title: Corpuscle sorter
IPC: H03M1/00
Filed: 1966-02-01
Abstract: 1,103,190. Electrostatic separators. UNITED STATES ATOMIC ENERGY COMMISSION. 1, Feb., 1966 [4, June, 1965], No. 4344/ 66. Heading B2J. [Also in Division G1] In an. apparatus for sorting particles suspended in a liquid, a jet of the liquid is broken into a regular train of droplets by accoustic pulses and a sensor 29 measures a selected characteristic of each particle that passes it and causes an electrostatic charging collar 37 to charge each droplet in accordance with the measured characteristic of any particle it may contain. Electrostatic deflecting plates 39, 41 then direct each droplet into an appropriate collecting vessel or onto an appropriate portion of a moving strip of blotting paper. The selected characteristic may be size, radioactivity, fluorescence, luminescence, electrical conductivity, or light transmissibility. or reflectivity. The particle concentration should be such that about one in seven droplets will contain a particle and the collar 37 should charge one or more droplets ahead of and behind the droplet expected to contain the particle.
Patent GB-724680-A (GB)
Title: Improvements in or relating to receptacles for liquefied gas
IPC: F23Q2/52
Filed: 1953-02-18
Abstract: 724,680. Forcing liquids by gaseous pressure. NATIONALE SOC. ANON. Feb. 18, 1953, [March 17, 1952] No. 4520/53. Class 102 (2). [Also in Group XI] The neck end 2 of the receptacle 1 for filling with liquefied gas the reservoir 10 of a gas pyrophonic lighter through a valve mounted on the reservoir and comprising stationary and movable parts 11, 12, is adapted to be perforated by the hollow needle 13 secured to the part 12 and is provided with a polygonal profile or with one or more projections 9, Fig. 5, to co-operate with a corresponding shaped recess of the part 12 to turn and raise the valve part 12 to open the passage 15 leading into the reservoir or screw home the part 12 to close the passage 15 after filling the reservoir whereupon the neck is withdrawn. The neck end is formed as a plug 5 of pliant and resilient material such as rubber backed by an annular washer 6 and preferably pre-compressed before introduction into a recess 4 formed between a shoulder 6a and a peripheral flange 8. By reason of its elasticity the plug recloses the puncture made by the needle. The plugs 5 may take the form of a rigid washer capable of being pierced. In an alternative construction the end wall of the neck may be integral with the side walls and capable of perforation. The neck 2 may have a conical wall to engage frictionally with a corresponding wall of the valve part 12 or the neck may be omitted from the receptacle, the end thereof being then provided with means for rotating the valve part 12.
Patent GB-1195824-A (GB)
Title: Improvements in or relating to Molecular Sieves
IPC: B01J20/18
Filed: 1969-01-28
Abstract: 1,195,824. Polymerizing dienes on fillers. COMPAGNIE FBANCAISE DE RAFFINAGE. 28 Jan., 1969 [31 Jan., 1968], No. 4549/69. Heading C3P. [Also in Divisions B1 and C5] A molecular sieve is pretreated with at least one conjugated diene which is polymerized thereon. The pretreatment is especially suitable for Type 5A sieves to be used for separating olefins from iso-olefins in either the liquid or gas phase, and preferably employs butadiene or isoprene polymerized on the sieve at 80-120‹ C. to a content by weight of the sieve of 0À5-4% in the case of butadiene and 1-6% in the case of isoprene.
Patent GB-413412-A (GB)
Title: Improvements relating to the purification of petrol and like oils and spirits
IPC: C10G25/00
Filed: 1933-02-15
Abstract: Petrol and like oils are purified by treatment with a substantially dry mixture of an adsorbent earth, ferric sulphate, and sulphuric acid, in which the ratio of free acid to ferric sulphate exceeds 0,35 : 1.  Preferably the ratio lies between 0,45 : 1 and 0,80 : 1, and the temperature of treatment is above 45 DEG  C.  In an example, cracked petrol is washed with strong caustic soda solution, and distilled to 300 DEG  F., the distillate is mixed at 50 DEG  C. for 40 min., and the residue at 60 DEG  C. for 45 min., with a mixture of fuller's earth, sulphuric acid, and ferric sulphate containing a little ferrous sulphate, in which the ratio of free acid to ferric sulphate is 0,68--1; the distillate and residue are filtered, recombined, distilled with steam, and neutralized with ammonia or caustic soda solution.  The crude petrol may be treated without fractionation; or it may be treated with a portion of the purifying agent, distilled to remove a fraction which is sufficiently purified, and then the residue treated with the remainder of the agent at the same or higher temperature, the fractions finally being reunited. Specifications 269,242, [Class 91], and 273,883, [Class 1 (iii)], are referred to.
Patent GB-1307932-A (GB)
Title: Aromatic keto compounds their manufacture and use
IPC: C09B69/00
Filed: 1970-01-30
Abstract: 1307932 Dyestuffs GIBA GEIGY AG 30 Jan 1970 [31 Jan 1969] 4650/70 Heading C4P [Also in Division C3]  The invention comprises dyestuffs of the general formula A 1 -B-R-B-A 2  wherein A 1  and A 2  are each radicals of a polycyclic quinone of which at least one is vattable, B is a 5- or 6- membered heterocyclic ring containing at least one nitrogen atom, and R is the radical of a polyfunctional hydroxy, mercapto or hydroxymercapto compound bound through two of its oxygen or sulphur atoms or through an oxygen and a sulphur atom to a carbon atom in B, radical B being bound to A 1  or A 2  directly via a ring atom or via a bridging member. A 1  and A 2  are preferably anthraquinone radicals, B preferably contains 2 or 3 nitrogen atoms, e.g. a triazine, pyrimidine or quinoxaline radical and R is preferably a benzene, naphthalene or 5- or 6-membered heterocyclic radical having 1 to 3 hetero atoms. They are prepared by reacting a 5- or 6-membered heterocyclic compound containing at least one ring nitrogen atom with a polyfunctional hydroxy, mercapto or hydroxymercapto compound which may be heterocyclic and a polycyclic quinone, in either order. The reaction preferably takes place in an inert solvent in presence of an acid binding agent under a stream of air or nitrogen. The products are used as vat dyestuffs and pigments and may be subsequently sulphonated. They give yellow, orange, red, blue and green shades on regenerated cellulose, viscose, acetate rayon, cellulose ethers and esters, polyamides, polyurethanes, polyesters and colour lacquers, acetyl- or nitro-celluloses, aminoplasts, alkyd resins, phenoplasts, polyolefins, P.V.C., P.A.C. rubber, casein, silicones, crayons, cosmetic preparations and laminated sheets.
Patent GB-329293-A (GB)
Title: An automatic re-play device for gramophone records
IPC: G11B3/095
Filed: 1929-02-12
Abstract: 329,293. Anglo-Oriental Concessions, Ltd., and Bateman, J. B. Feb. 12, 1929. Returning sound - box to starting-point. - Consists of a repeating device for gramophones in which the sound-box needle coacts with a cam-disc d of light material placed on the record and provided with a central aperture b which engages the turntable spindle c. The disc a has a radial slot d<2> along which the needle moves during reproduction, the disc a being prevented from rotating by one edge d<3> of the slot d<2> bearing against the needle. After the playing of a record, the needle passes beyond the end of the slot d<2> and into the channel groove d<1> via the edge d'. The disc a then rotates with the record f so that the needle is moved in the spiral groove d<1> to the outer end of the slot d<2> and repetition of the playing occurs. The, disc, a is provided on its side engaging the record with pads h<1> of rubber, felt, or like material. In order that the device can be employed with records, having markings of different lengths, the slot d<2> is provided on its edge d<3> with means for varying its effective length consisting of an adjustable plunger sliding in a guide k. To locate the disc correctly with respect to the record f it is provided with a device m comprising a pin with a rubber or like sleeve m<1> adapted to bear on the edge of the record f. The pin m is held in any adjusted position along the slot a<1> by means of the screw a<2>. The Provisional Specification refers also to the employment of the disc for displaying printed matter thereon.