baber/WOPTO huggingface dataset:
Patent GB-356363-A (GB)
Title: Improvements in or relating to vibratory mirror systems for use, for example, in sound recording
IPC: H04N3/36
Filed: 1930-07-03
Abstract: 356,363. Oscillographs. GRAMOPHONE CO., Ltd., Hayes, WHITAKER, A., Colne Mead, West Drayton, both in Middlesex, and BROWNE, C. 0., 3, Freeland Road, Ealing Common, London. July 3, 1930, No. 20230. [Class 37.] A mirror 1 is mounted on an armature 2 carried by a torsion member and co-operating with a pair of magnet poles whose strengths are varied in accordance with current oscillators, the poles being so located as to exert equal and opposite magnetic forces upon the armature in a direction normal to the axis of vibration of the armature. An electromagnet 10 has bifurcating polepieces 14 .. 17, between which is located the armature 2, forming part of a cross, the vertical arms of which are preferably clamped to a back-plate 5. Coils 18 .. 21 receive electric currents and vary the strengths of the magnetic poles. The natural frequency of oscillation of the armature may be varied by either adjusting the points of clamping of the torsion member to the back-plate, or by leaving one end of the torsion member free and loading it with a suitable weight. The instrument may be used for optical sound recording, or by using two such instruments disposed at right-angles to each other, a beam may be caused to scan an object for television.
Patent GB-1244051-A (GB)
Title: Methylcrotonic acid and derivatives in carbomycin a fermentation
Filed: 1969-04-21
Abstract: 1,244,051. Carbomycin A. PFIZER Inc. 21 April, 1969 [6 March, 1969], No. 20340/69. Heading C2A. Carbomycin A is prepared by a fermentation process, with Streptomyces halstedii A.T.C.C. 13449 or a carbomycin A producing mutant strain thereof, in which the fermentation is conducted in the presence of #-methylcrotonic acid or a salt, ester or amide thereof, in an amount to provide a concentration of 0À50-5À0 millimoles per litre.
Patent GB-148485-A (GB)
Title: Improvements in and relating to superheaters for steam boilers
IPC: F22G7/14
Filed: 1920-07-10
Abstract: 148,485. Power Specialty Co., (Assignees of Primrose, J.). May 10, 1917, [Convention date]. U-tube superheaters.-In a superheater having tubes with transverse corrugations or tubes enveloped in metal rings forming transverse corrugated heating surfaces, the furnace gases are so directed that they flow over the superheater in a direction at right-angles to the axes of the tubes. In a Babcock and Wilcox boiler, the gases are directed across the tubes A of a superheater arranged above the water-tubes by vertical or inclined transverse baffles C, D which cause the gases to take an upward and downward course from the front to the rear of the boiler. In a Stirling boiler, the gases are directed across the tubes of a superheater arranged vertically between the front and second banks of water-tubes.
Patent GB-1150581-A (GB)
Title: Method for the Control of a Process and Apparatus for Carrying Out said Method
IPC: G05B9/03
Filed: 1966-05-09
Abstract: 1,150,581. Automatic control. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. May 9, 1966 [May 11, 1965], No.20467/66. Heading G3R. In a system in which a computer normally scans meters measuring process conditions and derives error signals which are applied successively to appropriate correcting units, switching means are operated upon a failure of the computer so that one or more of the correcting units is disconnected from the computer and connected to separate electrical controllers which compare values of the condition with reference values so that the correcting units are moved in senses dependent on the signs of any differences. As described, voltages corresponding to the magnitudes of a number of variables of a process are applied in succession to a digital computer outputs of which control the variables in succession by operating AC, DC or stepping servomotors. The voltages are also compared with pre-set voltages so that any differences are available, if required instead of the computer outputs, for operating the servomotors in the appropriate senses to adjust the variables to correspond with the pre-set voltages. Such changeover, e.g. on the occurrence of a fault in the computer, is effected by manual or automatic operation of switches in the input circuits of the servomotors. Feedbacks may be applied from the servomotor outputs to the inputs of the comparators.
Patent GB-424470-A (GB)
Title: Improvements in or relating to modulating and keying systems for radio and like transmitters
IPC: H03C1/26
Filed: 1934-07-12
Abstract: 424,470. Valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Plebanski, J. ; 32, Wapolna, Warsaw) July 12, 1934, No. 20468. Convention date, Aug. 17, 1933. [Class 40 (v)] The modulating and high frequency stages of a thermionic modulation system have their cathodes connected together, the common cathode point being connected to earth through a resistive impedance permeable to direct current. In Fig. 1 the common portion of the anode circuits of the modulating valve V1 and the high frequency valve V2 comprises a resistance R shunted by a condenser C1. By this means it is found that the anode current of V1 falls as that of V2 rises so that economy of high tension current is effected; also the characteristic of the oscillatory output from OC has a straight slope from the origin, so that 100 per cent modulation may be obtained with small distortion. Automatic volume control may be employed to keep the operating point at its optimum position. Modulation is effected by varying the grid bias of V2, and may be by modulation or keying potentials; in the latter case the output energy is reduced substantially to zero during spacing. A pair of modulating valves in parallel may be similarly associated with a push-pull high frequency pair ; or the valve V2 may be made self-oscillating by back-coupling, Figs. 3 and 5, (not shown). Fig. 4 shows a push-pull arrangement of the modulator and high frequency valve anode circuits, suitable chokes and condensers being provided in the input of the high frequency valve as shown; the valve V2 may be provided with back-coupling for self-oscillation. Fig. 6, (not shown).
Patent GB-978653-A (GB)
Title: Improvements in or relating to electrical apparatus for angularly positioning a shaft in dependence upon input digital signals
Inventor: JOHNSON LEONARD REGINALD JOFFR
IPC: G05D3/12
Filed: 1960-06-10
Abstract: 978, 653. Electric selective signalling systems. GENERAL ELECTRIC CO. Ltd. June 9, 1961 [June 10,1960], No. 20614/60. Heading G4H. In a digital system for controlling the position of a shaft a comparing arrangement, comprising transformers 37 and 38, Fig. 1, receives both the three most significant input bits 3, 4 and 5, and signals from a resolver device 18 driven by the shaft, and as a result drives a motor 2 forwards or backwards in such a way that the desired position is attained. The signals from the resolver 18 would normally represent the angular position of the shaft, but in the system described "fine" positioning of the shaft is achieved by converting a five-bit, 6, 7, 8, 9 and 10, fine position signal into an amplititude significant A.C. signal, by transformers 23-27, and applying this signal to one of the stator windings of the resolver, which in effect, electrically shifts the "zero" of the resolver by the amount specified by the fine input bits. Thus the signals produced by the resolver 18 represent the position of the shaft referred to an origin, displaced from the true origin, by the amount specified by the fine input bits. A monostable circuit 55 is provided so that each time the most significant bit, bit 3, changes a transitional disturbance is applied to the system to prevent the shaft sticking 180 degrees displaced from the required position. Outline circuits for transistorised switches are described (Figs. 3 and 4 not shown).
Patent GB-724027-A (GB)
Title: A method of treating with liquid a material in granular, threaded or fibrous form and apparatus for carrying out the method
IPC: D06B5/00
Filed: 1952-08-15
Abstract: A method for the liquid treatment of materials in granular, threaded or fibrous form comprises placing the material into a circulation system into which the treatment liquid is fed, creating a vacuum within the system and then lifting the vacuum so that the liquid is passed into the material to be treated.  The excess of liquid is then removed from the system and any liquid retained in the material is expelled by circulating a flow of gaseous fluid through the system. The Figure shows an apparatus for the bleaching of cotton yarn supported on spools which are mounted on a carrier and inserted into a vat 1.  Valves 5, 11 and 16 are closed and valves 13, 17 which are connected to a vacuum pump and liquid receptacle respectively are opened so that the treatment liquid is sucked through pipe 14 and through the spools. Valve 17 is now closed and valve 16 opened to connect the vat 1 to the ambient air through pipe 15 so that a <PICT:0724027/IV (c)/1> rapid change in pressure in vat 1 takes place so that the treatment liquid is forced through the spools of yarn and the excess of bleaching liquid is discharged via valve 13 and pipe 14. Valves 13, 16 and 17 are now closed and valves 5 and 11 opened so that the compressor 9 circulates air in a closed cycle and any bleaching liquid retained by the spools is removed in droplet form and collected in the separator 7 from which it may be recirculated via pump 19 and nozzle 20 into pipe 10 and finally discharged. The heat required for the operation of the bleaching process is supplied by the heat produced by the compressor 9 during the circulation of the air current through the system.  After the bleaching process has been completed the yarn may be dried in the vat in a current of steam as described in Specification 655,403 [Group XIII].
Patent GB-696614-A (GB)
Title: Improvements in the production of nickel or cobalt hydroxide
IPC: C01G53/04
Filed: 1951-08-31
Abstract: An impure cobalt or nickel hydroxide is produced by reaction between a cobalt or nickel salt and a water-soluble hydroxide at a pH above 12.5, and a pure hydroxide produced therefrom by treatment with an organic solvent, e.g. an alcohol with 1-5 carbon atoms or an ether thereof, a furane or hydrofurane, a pyran or hydropyran, or a ketone with not more than 6 carbon atoms.  The water-soluble hydroxide is suitably sodium or potassium hydroxide, or a tetra-alkyl-, -aryl-, or alkylolammonium hydroxide.  The solvent used should be substantially anhydrous, the treatment being, for example, effected in a reflux apparatus containing calcium oxide, boric oxide, copper sulphate or other dehydrating agent.  An organic base, e.g. trimethylamine, may be present with the solvent.  Extraction may take place at temperatures between the freezing and boiling points of the solvent, but below the decomposition point of the hydroxide, and at 1-10 atmospheres pressure.  Nickel hydroxide produced may be dehydrated in vacuum at 250 DEG C.  For the production of a catalyst, the hydroxide, deposited on, say, pumice, may be purified as above, and then reduced; this may be further treated with hydrogen sulphide to yield a nickel sulphide catalyst.
Patent GB-148875-A (GB)
Title: An improved refrigerant
IPC: C09K5/04
Filed: 1920-07-10
Abstract: 148,875. Seaman, H. W., (Assignee of Crawford, A. G.). Feb. 5, 1918, [Convention date]. Refrigerating, compression machines and processes for.-A refrigerant for use in a compression refrigerating-system consists of a mixture of propane and propylene combined with butane and butylene. It is stated that good results are obtained if the substances are mixed in equal proportions, but the boiling-point and vapour-pressure may be controlled by varying the proportions used.
Patent GB-1115082-A (GB)
Title: Methods of copying
Inventor: HIGHAM EDWARD HALL
IPC: B41M5/382
Filed: 1965-05-17
Abstract: 1,115,082. Printing apparatus. UNILEVER Ltd. 17 May, 1966 [17 May, 1965], No. 20695/65. Heading B6C. A method of copying in which a thin film of a transfer medium is applied to the image face of an original document to be copied and the original document is subjected to irradiation to cause transfer of said medium to an adjacent sheet in a pattern determined by the original image, is characterized in that, prior to the irradiation step, heat is applied'to the original document so as to reduce the viscosity of the medium and time is allowed for the medium to flow and thereby improve its effective distribution over the original document. In the apparatus shown, an original is treated at station 4 with a suitable oil transfer medium e.g. triacetin, is heated for two seconds to a 'temperature of 100‹ C. at station 5 and is passed through an irradiation step at station 6 together with a superimposed copy sheet 16. Modified apparatus is described in which the heating step is carried out on the original prior to, or during, the oil treatment.
Patent GB-1459846-A (GB)
Title: Sole for a shoe
IPC: A43B13/00
Filed: 1974-05-10
Abstract: 1459846 Footwear soles J FRAU SA 10 May 1974 [26 Sept 1973] 20735/74 Heading A3B A shoe sole, made from a single piece of e.g. plastics material, has a raised inner shank 5 to provide a foot arch support, a heel supporting zone 1 in a lower plane than the zone 2 supporting the ball of the foot, a slightly raised dome-like zone 3 in the ball of the foot zone 2, a channel 9 situated between the inner shank 5 and the opposite outer edge, and, at the fore part of the sole, a decrease in thickness, starting midway of the ball portion at 7 and proceeding towards the toe portion, the decrease reaching its maximum in the supporting zone for the big toe, and forming a curved surface 6, the front view of which (Fig. 5) shows an oblique edge. Lines 9-14 shown in the plan view of Fig. 2 indicate the enclosed area that is at a lower level than the peripheral zone, whilst a portion 8 situated in the heel zone towards the inner edge of the sole is at a lower level than the remainder of the heel zone. Hollows (Fig. 2) may be provided in the top surface of the sole to reduce its weight. By means of the invention, the foot is retained in conformation with the sole when resting, and the weight of the wearer rests on the big toe at the end of each stride.
Patent GB-828107-A (GB)
Title: Improvements relating to visible index and slip-posting systems and slips therefor
IPC: B42F17/18
Filed: 1957-07-02
Abstract: 828,107. Visible card indexes. COPELAND-CHATTERSON CO. Ltd., BROWN, W. M., and HAUXWELL, E. J. A. May 16, 1958 [July 2, 1957], No. 20888/57. Class 146(1) In a visible filing system, slips 3 are provided with tongues 4 for engagement with horizontal slots in a backing sheet, the slips being provided with a recessed edge 6 to facilitate turning over the slips when they are mounted on the backing sheet. Inclined parts 7 at the ends of the edge 6 facilitate engagement of the tongues 4 with the slots in the backing sheet. Specification 435,368 is referred to
Patent GB-571871-A (GB)
Title: Improvements in and relating to on-load tap-changing systems for transformers
IPC: H01H9/00
Filed: 1943-12-14
Abstract: 571,871. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 14, 1943, No. 20913. Convention date, Dec. 14, 1942. [Class 38 (ii)] An on-load tap-changing arrangement for transformers comprises a pair of tap selectors 7, 8 connected through parallel paths, one of which includes an arcing contactor 9, to the line 12, and a reversing switch 13, whereby the contactor may be transferred from the circuit associated with one of the tap selectors to the circuit associated with the other. The tap selectors 7, 8 and reversing switch 13, together with current-limiting chokes 14, are disposed in the transformer tank 2, while the arcing contactor 9 is disposed outside at the top of an insulating bushing 10 housing the concentric conductors 15, 16 as in Specification 546,153. In the present arrangement, however, the bushing insulator 10 also serves for the line terminal 12. The tap selectors, reversing- switch and arcing contactor are mechanically interconnected for actuation in the required sequence by a motor 23 which may be automatically controlled by a voltage-responsive relay 24 connected either across one of the main windings or across a tertiary winding 5.
Patent GB-149013-A (GB)
Title: Installation for the operation of rontgen tubes
IPC: H05G1/20
Filed: 1920-07-12
Abstract: 149,013. Loewe, S. March 5, 1919, [Convention date]. R÷ntgen-ray tubes.-For exciting R÷ntgen-ray tubes, undamped high-frequency vibrations are used and produced with the help of vacuum tubes in a circuit for generating undamped oscillations in connexion with a transformer, such as the Tesla transformer. The R÷ntgen tube itself may be used for generating the oscillations. Fig. 1 illustrates a system adapted to a Coolidge tube having the glow cathode 11 heated by a battery 12 and resistance 13. An auxiliary anode 15 and grid 14 are connected as shown to the cathode, and the oscillating system 16, 17, 18 acts inductively on the one hand on the regulating coil 22 of the grid 14, and on the other hand on the Tesla coil 23, which is connected with the main anode 24 or anti-cathode 25. In the Specification as open to inspection under Sect. 91 (3) (a) the system shown in Fig. 1 (Cancelled) is described comprising a supply or supply system containing an induction coil 3, a spark gap 4, condenser 5 and an ironless transformer 7. This subject-matter does not appear in the Specification as accepted.
Patent GB-1475945-A (GB)
Title: Cellular panel having reinforcing inserts
IPC: E04C2/36
Filed: 1975-05-16
Abstract: 1475945 Laminated reinforced honeycomb panel VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 16 May 1975 [24 May 1974] 20943/75 Heading B5N A panel comprises a cellular core 1 faced with plastics skins 2, 3 and at least one thermosetting plastics insert 4 for taking up locally-applied forces, the insert being disposed in a recess 5, formed by removal of cell walls, and bonded to at least one skin, which skin is of thermosetting material. The skins 2, 3 and insert 4 may comprise a plurality of layers of glass fibrereinforced material. The core 1 is sealed at the edges by a band of unhardened plastics 6 and hardened plastics 7.
Patent GB-1066821-A (GB)
Title: Borontrifluoride-ester complexes as hardening agents
Inventor: VAUGHAN GEORGE
IPC: C07F5/02
Filed: 1963-05-25
Abstract: The invention comprises a complex of boron trifluoride with an ester having the general formula R1(COOR2)n wherein R1 represents any aliphatic or alicyclic radical or an aromatic radical containing a benzene ring which does not contain a second esterified carboxyl group directly attached thereto, R2 represents a tetrahydrofurfuryl radical and n is a positive integer. The esters are conveniently prepared by reacting tetrahydrofurfuryl alcohol with an organic carboxylic acid, or by reacting tetrahydrofurfuryl chloride with a lower aliphatic ester of an organic carboxylic acid, such as the methyl or ethyl ester.  Examples of suitable esters are given.  The complex can be made by mixing, at room temperature, a tetrahydrofurfuryl ester and a complex of boron trifluoride with an ether until a homogeneous mixture is obtained, or by bubbling BF3 gas through the liquid ester at room temperature. Examples describe the preparation of boron trifluoride complexes of maleic, ortho-chlorobenzoic, sebacic, acetic, furoic, benzoic, p-isocyanatobenzoic, and p-nitrophenylacetic acid and nadic methyl anhydride.ALSO:An adhesive composition comprises in admixture an epoxide resin and a hardening agent which is a complex of boron trifluoride with an ester of the formula R1(COOR2)n, wherein R1\t represents any aliphatic or alicyclic radical or an aromatic radical containing a benzene ring which does not contain a second esterified carboxyl group directly attached thereto, R2 represents a tetrahydrofurfuryl radical and n is a positive integer.  Examples of epoxide resins and resins based on bisphenol A and epichlorhydrin, resins based on phenolic compounds and formaldehyde, and the polyalkylene-oxide resins.  The setting time of the adhesive can be increased by adding a modifying agent to the resin or the hardening agent before these are mixed. Preferably, an organic amine, e.g. an aromatic amine is used, the amount of amine being from 0.5 to 10% based on the weight of resin.  Suitable plasticizers which can be used are a chlorinated copolymer of styrene with butadiene, or polypropylene glycol.
Patent GB-1067932-A (GB)
Title: Upper roller for spinning machine drafting mechanisms
IPC: F16C13/00
Filed: 1964-05-21
Abstract: 1,067,932. Drafting rollers. W. SCHAEFFLER and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER OHG]. May 21, 1964 [May 24, 1963], No. 21019/64. Heading DID. [Also in Division F2] An upper roller for a drafting mechanism in a spinning machine includes a pair of roller bearings carried by a stationary spindle 1, each bearing being constituted by two rows of rollers 5, an outer race 10 carrying a sleeve 14 with a resilient cover 15, a cage 13 of the comb type, stationary collars 6, 7 engaging with annular grooves 2, 3 in the spindle and a stationary collar 11 having a plurality of studs 12 engaging with holes in the outer race. The collar 7 is provided with sealing flanges 18, 19; and the spindle is provided with a groove 4 containing a member 20 for attachment to a loading arm (not shown in the drawings). The collars 6, 7, 11 and the member 20 may be made of a synthetic plastics material. The rollers 5 may be replaced by balls, Fig. 5 (not shown); and the collar 7 may include a metallic annular-disc of L-shaped profile in cross-section, Figs. 2 and 3 (not shown) in place of the flange 19 to protect the collar and provide a cutting edge, which prevents fibres entering the bearing. The grooves 3, 4 may be replaced by knurling on the spindle, Fig. 4 (not shown); and a single of row of rollers may replace the rollers 5, Fig. 6 (not shown). The spindle may have extensions (23), Fig. 3 (not shown), and the collar 6 may be provided with a sealing flange (25).