baber/WOPTO huggingface dataset:
Patent GB-892532-A (GB)
Title: Improvements in communication by electro-magnetic induction
Inventor: SNEATH OSWALD BARBER
IPC: H04B5/04
Filed: 1957-06-28
Abstract: 892,532. Inductive signalling. MULTITONE ELECTRIC CO. Ltd. June 16, 1958 [June 28, 1957], No. 20588/57. Class 40(5). In an inductive communication system, a portable device can contact a caller by generating an alternating magnetic field which is picked up by a loop system to energize an indicator at the caller's station, the said loop system including also a second loop or pick up coil, which supplies a signal in anti-phase to the first loop to neutralize interference. The callee's signal which preferably uses emphasised side-band transmission is induced in a main loop H, Fig. 2, which feeds a selective amplifier K tuned to the carrier frequency and part of the signal is fed via limiter L to a further carrier frequency filter M. A further part of the signal from K is applied to a filter N tuned to the appropriate side band frequency. The signals from M, N are rectified at R, limited at P, and filtered at Q, to operate a lamp S, and also a switch V. When this operates the output from rectifier R is amplified at T to operate a speaker U. The signal from, an anti-interference loop Y is phase adjusted and amplified at F, G before application to amplifier K. For simple acknowledgment of signals by the callee a tone modulated transistor oscillator, Fig. 3 (not shown) is employed. For emphasised sideband telephony, a microphone M, Fig. 4, together with speech amplifier T3, modulates the carrier oscillations produced in the circuit of T5 in modulator T4. The modulator collector circuit is tuned by transforemr L3 and condenser C10 to the side-band to be emphasised, nevertheless allowing the carrier to pass. The output of the transformer is applied to the output amplifier T6 whose collector tuned circuit comprises a ferrite aerial L4 and condenser C12, tuned to said side-band frequency. The transmitter will also radiate a responding tone by operation of switch Z. In the embodiment of Fig. 5, the output transistor T8 has a tuned circuit L9, C19 in its emitter circuit whose impedance is several times greater than the input impedance of T8 at the carrier frequency. This prevents the output stage being heavily loaded at the carrier frequency by introducing feedback at this frequency. Simple reply transmitters, Figs. 6 and 7 (not shown) employ a mechanically tuned vibrator and a tuned circuit in a form of spark transmitted.
Patent GB-321934-A (GB)
Title: Improvements in suspension means for motor road vehicles
IPC: B60G11/08
Filed: 1928-07-17
Abstract: 321,934. Garner, H., and Garner, J. P. July 17, 1928. Springs, arrangement of; equalizing load on wheels.-In vehicle suspension systems of the type in which the spring connection is adapted to rock transversely about an axis disposed substantially on the longitudinal centre line of the vehicle, a bracket is pivoted to the front part of the frame in front of the axle, the axle being connected to the bracket by springs and to the bracket or frame by radius rods. Fig. 1 shows a longitudinal sectional elevation of one construction and Fig. 2 shows an underneath plan view. The front ends of the vehicle side frames I are connected by two transverse plates 3, 4, and an inverted channel girder 5. Secured to the girder 5 are spaced blocks 7 carrying a hollow pivot pin 8 on which is mounted a swinging bracket 9, the bracket having three lugs 10 working on the pin 8. The rear end of the bracket is formed with housings 11 which, with caps 13, form encasements for the ends of quarter elliptic springs 12. These springs extend rearwardly and outwardly towards the ends of the axle 14 on which the steering wheels are mounted. The outer end of each springs enters a box, Fig. 5, and bears upon a loose roller 21. The master plate of the spring is bent downwardly as shown at 18 and bears against a rubbing plate 19 supported by a rubber buffer 17. The cover of the box is fitted with an 'elastic buffer block 26 which bears against the frame and prevents excessive axle movement. Loop cables 30, 40 also limit excessive relative movement of the frame and axle. The axle is further positioned relatively to the bracket 9 by means of the radius rods 38, the inner ends of which are united and connected by a ball and socket joint 34, 36 to the forward end of the bracket 9. In a modification shown in the underneath plan view, Fig. 7, separate radius rods are dispensed with. The axle 14 is clamped to the outer ends of the quarter-elliptic springs 54, the inner and forward ends of which are secured in a V-shaped bracket 53 connected to the pivoted bracket 50 bv a ball-and-socket joint as described previously. The weight of the vehicle is transferred to the springs by means of a transverse bar 58 pivoted at its centre to the bracket 50 and bearing upon the top leaf springs about half way along their length. The spring 54 may be replaced by radius rods and springs may then be interposed between the bar 58 and the rods. When separate radius rods are used they may be arranged to the rear of the axle.
Patent GB-139724-A (GB)
Title: Improvements in or relating to sprinklers
IPC: B05B3/00
Filed: 1919-08-22
Abstract: 139,724. Rolland, E. Aug. 22, 1919. Rotary apparatus.-A reaction-wheel sprinkler is provided with retarding-means of the kind in which the resistance offered by a quantity of liquid to being stirred or agitated is utilized for retarding the apparatus. In the form shown in Fig. 1, the distributing-pipes e are mounted to rotate on a fixed stand-pipe a, which carries a spur-wheel f engaging pinions q mounted to rotate on pins h carried 'by a liquid-filled casing c which rotates with the arms e. Fixed to the pinions g is a spur-wheel i engaging pinions mounted on the shafts of the fans k. In the form shown in Fig. 4, the casing rotates around an eccentric disk o carrying spring-pressed plates t. This disk acts at a rotary pump and forces the liquid in the casing through the restricted passage q, the amount of resistance being varied by means of the cock r. In modified forms, the casing is fixed, and the spur-wheel f and disk n respectively rotate within it.
Patent GB-645644-A (GB)
Title: Improvements in and relating to radar responder beacons
IPC: G01S13/76
Filed: 1948-08-05
Abstract: 645,644. Radio signalling; radiolocation. HUGHES & SON, Ltd., H., WHITFIELD, H. R., and HARRISON, A. Aug. 5,1948, No. 20739. [Classes 40 (v) and 40 (vii)] A responder beacon for co-operation with pulse radar sets operating in different narrowfrequency bands within a wide frequency spectrum comprises a normally quiescent oscillator adapted to be triggered by a received pulse so as to emit coded response pulses, the oscillator being modulated (e.g. frequencymodulated) so as to radiate at frequencies spaced throughout the wide spectrum. Fig. 1 shows the arrangement of the beacon, Fig. 6 its construction, and Fig. 5 the valve circuits. The interrogator pulse is received at 41 or 42 and passed into a hollow resonator 10 having a large number of resonance frequencies within the wide band. The pulse is detected at 12 and passes through an amplifier 13 to a device 14 for generating the coded response pulse. This operates a klystron oscillator feeding wave energy to the resonator 10 and thence to the radiators 41, 42, Fig. 6. In order that this radiation may occupy a wide frequency-band, the klystron 15 is frequency-modulated by an oscillator 16, the frequency of which determines the spacing of the multiple side-frequencies produced. The resonator 10 and the radiators 41, 42 are mounted on a support 44 and rotated by a motor 45. The units 12... 16 are mounted in a casing 43, and a probe 38 from the klystron oscillator extends into the resonator 10. The coded response pulses are generated by a series of blocking-oscillators 24, 25, the pulses being taken from the screen-grid circuits through a transformer 33 and amplifier 34, and applied to the resonator of the klystron 15. Each blocking-oscillator is coupled to the succeeding one by a delay network 26, 29 and a unilateral conductor 27, the first oscillator being triggered by the rectified received pulse applied in the positive sense at the grid terminal 23. For producing a wide band of side-frequencies, the klystron 15 has its reflector electrode coupled to the anode of a self-oscillating valve 36 with the result that the output wave is frequency-modulated. The valve 36 may, if desired, be brought into operation only during the emission of pulses by coupling its suppressor grid to the anode circuit of the pulse amplifier 34. The code pulses may be received by the radar set and rendered visible on the plan-position indicator.
Patent GB-1497350-A (GB)
Title: Method of obtaining copper from copper-bearing ores
IPC: C25C1/12
Filed: 1975-05-15
Abstract: 1497350 Recovery of copper from ores SOC MINIERE ET METALLURGIQUE DE PENARROYA 15 May 1975 [15 May 1974] 20760/75 Addition to 1497349 Heading C1A Step I of the process of the main patent is modified in that the ore or concentrate is lixiviated with an aqueous solution containing cupric chloride and part of the lixivium is regenerated with gaseous oxygen at a pH of 1-3 at a temperature above 90‹ C. whereby goethite precipitates and is removed, the regenerated solution, containing cupric chloride then being recycled to the lixiviation process. The process embodies the method described in Specification 1,478,571, to which reference is made.
Patent GB-202640-A (GB)
IPC: F01P7/16
Filed: 1923-08-15
Abstract: 202,640. Ernst, W. E. Aug. 15, 1922, [Convention date]. Closure members.-In thermostats comprising a rotary disc valve 7 controlled by bi-metallic strips 13, 14 the valves are prevented from sticking to their seats 18 by making the face of one or both conxex; they may be rigid or flexible so as to be further bent by the pressure of the working fluid which is supported by a spring 16 and adjustable thrust bearing 17.
Patent GB-387597-A (GB)
Title: Improvements in or relating to daylight signal lanterns
IPC: B61L5/18
Filed: 1932-07-23
Abstract: 387,597. Daylight signal lamps. PINTSCH AKT.-GES., J., 7, Andreas. strasse, Berlin. July 23, 1932, No. 20850. Convention date, July 24, 1931. [Classes 75 (ii), 75 (iii), and 75 (iv).] A daylight signal lamp is equipped with an optical system for wide dispersion in one plane, and provided with means such that the beam of light executes rhythmical oscillations in a plane at right-angles to the plane of dispersion. This may be effected by moving the source of light or the optical system or both, or the whole lantern, by magnetic action or a motor drive, e.g. an electric motor or a device in which a pressure medium sets a diaphragm oscillating. The dispersion may be in a vertical or horizontal plane.
Patent GB-832150-A (GB)
Title: Improvements in and relating to armature bearings for miniature electric motors
IPC: F16C33/10
Filed: 1958-06-30
Abstract: 832,150. Bearings. AVOG ELEKTROUND FEINMECHANIK G.m.b.H. June 30, 1958 [July 10, 1957], No. 20872/58. Class 12 (1). A bearing for mounting an armature in a miniature motor comprises a carrying sleeve 2, cast into the motor housing 3, lubricantcontaining bushes 1 of material made of powder metallurgy, and separating sleeves 11 of inelastic material located between the sleeve 2 and bushes 1. The separating sleeves 11 preferably consist of pressed material such as hardpaper. A lubricating felt 4 is disposed between the bushes 1. The carrying sleeve 2 is enclosed by the bell-shaped portion of the armature lamination holder 6 which is pressed on to the overhung shaft 8. A coiled spring 10 is located within the lubricating felt 4.
Patent GB-1476587-A (GB)
Title: Method and apparatus for anodic oxidation of organic contaminants in water
IPC: C02F1/461
Filed: 1975-05-16
Abstract: 1476587 Electrolytic water treatment SACHS SYSTEMTECHNIK GmbH 16 May 1975 [17 May 1974] 20881/75 Heading C7B Organic contaminants in water are oxidized in the anode compartment of a cell containing adsorbent particles of grain size 1-4 mm. which are maintained in turbulence by flow of liquid in the cell. The particles, e.g. of carbon, are adsorptive of both the contaminant and atomic oxygen. An anodic c.d. of 0À2-0À7 mA/cm<SP>2</SP> is used. The particles may be retained in the cell by glass frits over the fluid inlets/outlets in a cell divided by an ion- and particle-impermeable membrane. A cell may comprise a central C rod anode surrounded concentrically by a dialysis tube and CrNiMo-steel anode which latter acts as cell wall. The particles may be maintained in exact suspension against gravity. Oxidation of oxalic acid, benzol, urea, diethylnitrophenyl thiophosphate and hexachlorocyclohexane is referred to.
Patent GB-1113093-A (GB)
Title: Coating pigments
IPC: C09C1/36
Filed: 1965-05-18
Abstract: A metal oxide pigment is coated by adding, to an aqueous slurry of the metal oxide, a water-soluble titanium compound which yields a titanium oxide, a titanium oxide hydrate, a titanium hydrate condensate or a mixture thereof on hydrolysis and a water-soluble aluminium compound which yields aluminium hydroxide, an aluminium oxide hydrate, an aluminium hydrate condensate, or a mixture thereof on hydrolysis, the slurry being maintained at a pH above 8.5 but not above 10.5 during the addition of at least substantially all of the titanium and aluminium compounds. The metal oxide is preferably titanium dioxide produced by the vapour phase oxidation of titanium tetrachloride, tetrabromide or tetraiodide above 600 DEG  C.  After the addition of the titanium and aluminium compounds the slurry may be heated at 30-100 DEG  C for from 5 minutes to 6 hours, the pH adjusted to from 5.3 to 7.3 and the slurry further digested for from 5 minutes to 3 hours until no pH shift is observed. The titanium compound is preferably introduced prior to the aluminium compound, each compound being introduced simultaneously with a base, e g NaOH, KOH, LiOH or NH4OH.  A water-soluble silicon compound which forms a silicon oxide, a silicon hydrate, a silicon hydrate condensate or mixtures thereof on hydrolysis may be added to the slurry at a pH below 8.0 after the titanium and aluminium compounds, the slurry then being digested at 30-100 DEG  C. for 5 minutes to 6 hours and the pH adjusted to 5.3-7.3.  Alternatively the silicon compound may be added before the titanium and aluminium compounds and before the slurry is rendered alkaline. Suitable titanium compounds are TiCl4, TiI4, TiBr4, titanium sulphate, titanyl sulphate, tetraethyl titanate, tetra-2-chloroethyl titanate, tetraoctyl titanate, tetraphenoxy titanium, tetra-acetyl titanium and tetrabutyric titanium. The aluminium compound may be AlCl3, Al2(SO4)3, triethyl aluminium, tetrahexyl aluminium, triphenyl aluminium, triethoxy aluminium, tributoxy aluminium, triphenoxy aluminium, and acyloxy aluminiums such as triacetyl and cyclic aluminoxy trimers such as trimethoxy trialuminoxy.  The silicon compound may be SiCl4, SiBr4, SiI4, SiH4, Si (OOCCH3)4, Si(OCH3)4, Si(NH2)2 Si(NH2)4, Si(OCH2CH3)4 and Na2SiO3. At least one dispersant may be introduced into the slurry prior to the addition of the titanium and aluminium compounds e.g. primary, secondary and tertiary amines, quaternary ammonium hydroxides and water-soluble sodium, potassium, ammonium and lithium phosphates. A flocculating agent, e.g. MgSO4.7H2O or polyacrylamide polymers may be added to the slurry prior to filtering.  The pigment is filtered, washed (e.g. with water, alcohols, ethers, ketones or mixtures of these), dried at 90-C. and ground.
Patent GB-1118016-A (GB)
Title: Improved one-component siloxane elastomer
IPC: C08G77/00
Filed: 1966-05-11
Abstract: A one-component room temperature-vulcanizing silicone rubber-forming composition consists essentially of (1) 140 pts. (by wt.) of an organopolysiloxane having bonded to the Si atoms (a) ketoxime radicals in amount to cause the siloxane to cure to an elastomer in the presence of moisture, and (b) monovalent hydrocarbon and/or halohydrocarbon radicals, and (2) 25 to 55 pts. of a carbon black having an average particle diameter of less than 50 m m  and a structure index of from 130 to 200. Siloxanes (1) are described and claimed in Specification 975,603.  In one embodiment the siloxane (1) may be formed in situ in the composition by mixing together a hydroxyl-terminated siloxane, an alkenyl silane ketoxime and carbon black, the mixing and subsequent storing being conducted in the absence of moisture. Curing cataysts, e.g. dibutyltin-diacetate, dibutyltin-dilaurate, stannous octoate and ferric octoate, may also be added.  In a typical Example (1) a hydroxylated dimethyl polysiloxane was mixed with C black and ViSi (ON=C.Et.Me)3, and the product was extruded and allowed to cure in the atmosphere. Comparative compositions are also given.  Uses.-As caulking materials, coating compositions and for potting electrical equipment.
Patent GB-570716-A (GB)
Title: Improvements in or relating to multi-column account and like books and to loose leaves therefor
IPC: B42D12/00
Filed: 1943-12-15
Abstract: 570,716. Account books. ADAMS, P. L. Dec. 15, 1943, No. 21020. [Class 16] In an account book wherein the leaves a, a' are printed with a number of vertical columns c, the same for each leaf, the leaves are horizontally divided as at h or are so formed as to be capable easily of being so divided, so that by turning over the top half of a leaf, the totals on the bottom half can be transferred easily to the columns of the next sheet. The leaves may be provided with perforations or spaced incisions along the division lines extending wholly or nearly wholly across them from the outer edges to the inner edges. The upper and lower parts of each leaf bear like numbers so that they can be brought together easily in the open position of the book. Specification 15092/94, [Class 16], is referred to.
Patent GB-184184-A (GB)
IPC: C07C7/148
Filed: 1922-08-01
Abstract: Phosphorous compounds in acetylene are oxidized to phosphoric acid and removed as such by treatment with oxygen, preferably at a raised temperature, in the presence of activated charcoal as catalyst. Acetylene mixed with a small proportion of oxygen, air, &c. is passed through a reaction tower packed with activated charcoal and heated to 80-100 DEG  C.; alternatively, acetylene and air, &c. are passed in succession over the charcoal.  Phosphoric acid is recovered by extracting the charcoal with hot water.ALSO:Phosphorus compounds in acetylene are oxidized to phosphoric acid and removed as such by treatment with oxygen, preferably at a raised temperature, in the presence of activated charcoal as catalyst.  Acetylene mixed with a small proportion of oxygen, air, &c. is passed through a reaction tower packed with activated charcoal and heated to 80-100 DEG  C.; alternatively, acetylene and air, &c. are passed in succession over the charcoal.  Phosphoric acid is recovered by extracting the charcoal with hot water.  The Specification as open to inspection under Sect. 91 (3) (a) states that phosphorous acid is produced in the process.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1501964-A (GB)
Title: Method of manufacturing steel in a dc arc furnace and a furnace for carrying out this method
IPC: F27B3/08
Filed: 1975-05-19
Abstract: 1501964 Control of arc furnaces ASEA AB 19 May 1975 [24 June 1974] 21133/75 Heading H2H An arc furnace 1 for manufacturing steel comprises one or more arc electrodes 3 of graphite or of the Soderberg type, a starting electrode 5 and a stationary hearth connection 6, members 3, 5, 6 being permanently connected by leads to a D.C. source 4, whereby the arc current is initially carried by electrodes 3, 5, following lowering of the latter to contact the charge 10 and so strike the arc, the subsequent formation of a melt 11 causing a major part of the arc current to be automatically commutated from the electrode 5 to the hearth connection 6. There after the electrode 5 may be allowed to remain on the charge or it may be raised from contact therewith, whereupon the remainder of the arc current is taken over by the hearth connection. Electrode 5 is operated by hydraulic pneumatic or electromechanical means controlled by known electronic circuitry, is locked in contact with charge 10 until commutation of the current to connection 6 and may be removed from the furnace after such commutation. Connection 6 comprises one or more iron or steel electrodes 7 in direct contact with the melt 11 and surrounded by a cast or rammed compound 8 of magnesite or alumina. Electrode(s) 7 and terminal connection(s) 9 are cooled. Electrode 5 may be introduced through the side of the furnace 1 instead of its arch 2 and may comprise a small quantity of fragmented scrap or other charge material pressed against the charge 10 by a hydraulically, pneumatically or electromechanically operated piston, which is combined with a device for feeding fragmented scrap to renew the charge forming the electrode.
Patent GB-261120-A (GB)
Title: Improvements in and relating to dentures
IPC: A61C13/225
Filed: 1925-08-26
Abstract: 261,120. Rose, N. Aug. 26, 1925. No Patent granted (Sealing fee not paid). Teeth, artificial.-In the manufacture of dentures having gum parts or wing extensions to support the front of the mouth, the gum facing or wing comprises a matrix a of soft metal such as aluminium comprising a gum portion a' and wing a<2> and containing soft dental rubber c within which is embedded a strengthener e of perforated German silver formed in one or more parts and having projecting tags y to be pressed into the wax plate during setting up of the denture. The matrix is stripped off when the denture is finished. An inner cover of aluminium foil or other material is used to protect the soft rubber but is removed before application of the wax plate. The matrix may be extended and perforated for the passage of a pin to secure it to the plaster model and may be longer than is required so as to permit of trimming to the required size and shape. The portion of soft rubber removed during trimming may be employed to form packing pieces between the teeth. Fig. 7 shows a modified form comprising a complete gum facing from which portions may be removed if required, The gum or wing may be formed with a protuberance or ridge f on which the cheek rests.
Patent GB-1077649-A (GB)
Title: Improvements in primers for the initiation of explosives
IPC: C06B25/04
Filed: 1966-05-13
Abstract: A booster or primer composition for the initiation of blasting or slurry explosives comprises trinitrotoluene (TNT), pentaerythritol tetranitrate (PETN), and ammonium nitrate (AN), the aggregate weight of the TNT and PETN being greater than that of the AN.  A molten mixture of TNT and wet PETN is prepared, water and impurities skimmed off, and the AN stirred in.
Patent GB-627190-A (GB)
Title: Improvements in storage bins or the like
IPC: G01F23/22
Filed: 1947-08-06
Abstract: 627,190. Hoppers. EUROPEESCHE FULLER VERVOERMAATSCHAPPIJ N. V. Aug. 6, 1947, No. 21466. Convention date, July 7, 1943. [Class 78 (i)] In hoppers for pulverulent material provided with low-level indicators or control mechanisms of the kind which comprises a rod depending into the material and carrying a device which becomes operative when it is covered or uncovered by the material, the rod is carried by a universal mounting. The rod 24, Fig. 1, terminates in a forked paddle 25 and is carried by a housing 21 which contains the electrical mechanism described in Specification 486,075 and is mounted in a ring 20, Fig. 2. This ring has trunnions 19 which receive stub shafts 18 mounted in a concentric ring 17. Stub shafts 16 carried by the ring 17 are mounted in trunnions 15 carried by channel members 14 which are mounted in the mouth of the hopper. The rod 24 is surrounded by a tube 22 which is secured to the housing 21. One, or each, of the rings 20, 17 may consist of a flexible plate of rubber, or the ring 17 may be replaced by a rubber disc.