baber/WOPTO huggingface dataset:
Patent GB-435775-A (GB)
Title: Improvements in and relating to electric converting systems
IPC: H02M1/04
Filed: 1934-05-11
Abstract: 435,775. Converting motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 11, 1934, No. 14302. Convention date, May 11, 1933. Addition to 434,351. Drawings to Specification. [Classes 35 and 38 (ii)] Machines with vapour and like rectifiers in place of commutators.-Relates to a converting arrangement as described in the parent Specification and consists in the provision of means for retarding the phase of the blocking grid potential with respect to the anode potential. This ensures the grid remaining negative until after the corresponding anode has become positive. The retardation is effected by means of a condenser which bridges the primary winding of the grid transformer. To ensure also that the grid potential changes from positive to negative before the anode potential changes from negative to positive the grid transformer is provided with an auxiliary winding energized with D.C. to give a magnetic bias. In a modification of this the bias is obtained from a condenser connected in series in the grid circuit and bridged by a high resistance leak. Specification 418,297 is referred to.
Patent GB-1388688-A (GB)
Title: Control circuits for dc series electric motors
IPC: H02P3/10
Filed: 1971-05-11
Abstract: 1388688 Control of D.C. motors CABLEFORM Ltd 20 April 1972 [11 May 1971] 14340/71 Heading H2J A control circuit for the D.C. series motor A, F of a battery-operated vehicle comprises a conventional thyristor switching arrangement S to cause the motor to be supplied with pulses of current of variable frequency and/or markspace ratio as determined by a control signal from a pulse generator (not shown) connected to the arrangement S via transistor T3 and resistor R1, and means to change the control of arrangement S during braking conditions to restrict the range of current which can be applied to the motor and hence prevent the field current from exceeding a predetermined value. This control feature is provided by a circuit comprising transistors T1, T2, diode D3, resistor R2, capacitor Cl and Zener diode ZD1, the capacitor Cl being charged by each gate signal from the pulse generator and discharged by transistor T2 when it and the transistor T1 become conductive due to the armature diode D1 becoming reversebiased when the field and armature currents equalize. During motoring conditions, the circulating current in the armature-diode circuit A, D1 is zero or very low by the end of the interpulse period. Hence when the switch S is turned on, the field current rises to equal the armature current in a very short time so that capacitor Cl acquires very little charge. During braking conditions, when the field winding connections are reversed and a high generated current flows in the armature-diode circuit A, D1 during the inter-pulse period, the capacitor C1 continues to charge as the field current rises towards the armature current and, when it reaches a predetermined value, the capacitor voltage causes the Zener diode ZD1 to conduct to apply a signal to a high rate clamp in the pulse generator, whereby the switch S is controlled to restrict the range of current that may be applied to the motor, for example, by restricting the maximum frequency of the current pulses. Typical voltage and current waveforms during motoring and generating conditions are discussed, Fig. 2 (not shown), and mention is made of adjustment of the value of resistor R2 and/or capacitor C1 to select a desired threshold above which the range of current supplied is restricted.
Patent GB-385842-A (GB)
Title: Improved method of and apparatus for heating interstage steam and other flowing fluids
IPC: F22G1/00
Filed: 1932-05-20
Abstract: 385,842. Electrically-actuated valves. BAILEY METER CO., 1050, Ivanhoe Road, Cleveland, Ohio, U.S.A. May 20, 1932, No. 14358. Convention date, May 20, 1931. [Class 135.] Electric motors 55 operating valves 59 controlling exhaust steam &c. for reheating in heaters 11, 12 are controlled in accordance with the heat available at the separate heaters. The pressure differences across a nozzle 15 in the boiler steam discharge pipe 5 of a boiler 3 varies the level of mercury in a vessel 25 containing a transformer coil 27, the mercury forming a closed secondary around the lower end of the coil. The coil 27 is connected to the secondary coil 28 of a step-down transformer the primary 29 of which is connected across alternating current lines 32. The current flowing through the coil 27 and consequently the current flowing through the coil 29 therefore varies with the height of the mercury in the vessel 25. The current in the coil 29 passes through a solenoid 33 around a core 34. Similarly, the current flowing through a coil 35 and controlled by a flow meter on the steam discharge pipe 6 of the boiler 4 passes through a solenoid around core 39. The two cores act in opposite directions on a lever 51 carrying contacts controlling the flow of current to motors 55 operating valves 59 in supply pipes 9, 10 of the heaters. Cores 46, 47 operated in the same manner as the cores 34, 39 by flow meters. 21, 22 in the heater supply pipes also act in opposite directions on the lever 51. The lever will be balanced when the ratio of the rates of flow through the steam supply pipes 5, 6 is equal to the ratio of rates of flow through the pipes 9, 10.
Patent GB-250786-A (GB)
Title: Improvements relating to the rear spring suspension means of certain motor driven vehicles
IPC: B60G11/04
Filed: 1925-06-02
Abstract: 250,786. Henderson, V. G. F. June 2, 1925. Frame construction; springs, arrangement of. -Rear-extension dumb-irons 1 for supporting extended semi-elliptic rear springs 12 of a motor vehicle are inclined or curved downwardly and are supported against the outer sides of the side members 2 of the frame by top and bottom plates 5, 6 clamped to each side member and dumb-iron by bolts 7, 8, the upper plates 5 being also secured by rivets or bolts to the rear transverse member of the frame. The end of the dumb-iron carries a shackle 11 for connection to the rear end of the spring 12, the front end of which is pivoted at 14 in a forked portion 19 of a bracket 15 fixed by a bolt 16 to the usual shackle bracket 17 on the frame and having an offset projection 18 bolted to the underside of the frame.
Patent GB-514799-A (GB)
Title: Improved atomising device for liquid
IPC: F02M25/06
Filed: 1938-05-16
Abstract: 514,799. Lubricating. DEGORY, A., HAWKINS, R. S., and LIBOVITZ, C. J. H., [trading as ALAN & CO., D.]. May 16, 1938, No. 14603. [Class 12 (iii)] Oil in a receptacle g passes through a labyrinth packed with wick t to a valve-controlled outlet leading to an atomizer a in the intake or manifold of an internal combustion engine. The atomizer has a double-conical internal formation, the oil being fed in at the waist, and the exit is closed by a baffle d and provided with perforations f.
Patent GB-224200-A (GB)
Title: Improvements in covers for springs
IPC: F16F1/24
Filed: 1924-06-17
Abstract: 224,200. Debenedetti, G. Nov. 2, 1923, [Convention date]. Gaiters.-A cover for a laminated spring consists of a channel-shaped receptacle 1 made flexible by corrugations 3 in its walls, the spring being tightly enclosed therein by a closing plate 2 and packing-rings 9 at its ends. The receptacle 1 is formed of sheet metal and may have recesses 4, 6 for the stirrups which keep levers in position and for the packing-rings respectively, or these stirrups and packing-rings may be corrugated externally to fit the corrugations in the receptacle. The closing plate has depressions at its edges to contain packing and to receive the edges of the receptacle walls, and it is held upon the receptacle by belts or straps 8 at its ends and, if desired, at intermediate points; or, when the receptacle is corrugated throughout its length, the plate may be held in position by wire engaging the corrugations. The plate 2 has an opening for lubricant closed by a cap 10 and a layer of felt &c. may be provided under the plate.
Patent GB-528877-A (GB)
Title: Improvements in or relating to suspension means for the wheels of cycles
IPC: B62K25/24
Filed: 1939-05-16
Abstract: 528,877. Indiarubber springs. ELLIS, L. S. E. (Auto Union Akt.-Ges.). May 16, 1939, No. 14609. [Class 108 (iii)] [Also in Group XXXI] In a spring fork for motor and other cycles, of the type in which the fork 2 is connected to the head 1 by parallel pairs of links 3, 4, and its movements are controlled by a tension spring consisting of a rubber ring 7 mounted over supporting members 9, 8 associated respectively with the fork and head, the rubber ring 7 is constricted approximately centrally by an elastic band 10 having a softer spring characteristic than the rubber ring 7, so that the resulting spring characteristic is an ascending curve of progressively increasing gradient.
Patent GB-1375506-A (GB)
IPC: C23F14/02
Filed: 1972-03-29
Abstract: 1375506 Separating hydrocarbons in the presence of an anti-fouling agent BADISCHE ANILIN- & SODA-FABRIK AG 29 March 1972 [1 April 1971] 14701/72 Heading C5E In the separation of hydrocarbon mixtures containing unsaturated hydrocarbons using a selective solvent at elevated temperature fouling is inhibited by a N-substituted N nitrosohydroxylamine RN(NO)OH in which R is an aliphatic, cycloaliphatic, or araliphatic hydrocarbon radical or an inertly substituted derivative thereof, and/or a salt thereof. The salt may be with an ammonium, organo-ammonium, metal or complex metal ligand cation, numerous metals being specified. The separation process may be the recovery of (i) acetylene from combustion mixtures; (ii) butadiene from C 4  hydrocarbon mixtures; (iii) isoprene and/or cyclopentadiene from C 5  mixtures; (iv) butenes from C 4  mixtures; or (v) aromatics from mixtures, in each case using a selective solvent, and preferably at above 50 C. The solvent may be dimethylformamide, dimethylacetamide, furfurol, acetonitrile or N-methylpyrrolidone, preferably containing 5-15% by wt. of water. The anti-fouling agent is used in an amount from 1 p.p.m. to 10% by wt. relative to the solvent, optionally in conjunction with a known inhibitor, e.g. t-butylpyrocatechol, hydroquinone, a mercaptan, phenothiazine, #- naphthylamine, a phosphorous acid ester, methylene blue, an aldehyde, or sodium nitrite. The solvent may also include a pH buffer. In examples, Ce, Ca, K, NH 4  and Al salts of N-nitroso-N-cyclohexylhydroxylamine, and the Na salts of the n-octyl, cyclododecyl, and cyclooctyl derivatives are used.
Patent GB-579877-A (GB)
Title: Improved means for connecting water supply pipes to sanitary appliances
IPC: F16L19/06
Filed: 1945-07-19
Abstract: 579,877. Pipe joints. POUNTNEY & CO., Ltd., and ELKIN, J. S. July 19, 1945, No. 14836/44. [Class 99 (i)] A supply pipe 9 is connected to the socket 5 of a water closet by a coupling member 2 of earthenware plastic, or metal having at one end an outwardly flared surface 10 to form a circular handgrip 11, and at the other end a coarse thread 4 engaging a corresponding coarse thread 6 in the socket to compress a rubber ring 8 against the shoulder 7 or against a metal washer between the ring and shoulder.
Patent GB-253552-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/228
Filed: 1926-06-12
Abstract: 253,552. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). June 13, 1925, [Convention date]. Condensers. - In a method for making condensers made of alternate layers of dielectric and metal foil with the metal layer projecting from the sides, the free edges of the layer projecting over the dielectric are bent towards one another and pressed into intimate contact after the impregnation (for example, with paraffin) of the condenser, and are sprayed with a metal dust (for example, zinc or soldering tin) for the purpose of establishing a coherent metal layer suitable for the connection of soldered joints. The method lends itself to the use of plates of a metal (for example, aluminium) which can only be soldered with difficulty. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the application of the invention to condensers made according to the winding process. This subject-matter does not appear in the Specification as accepted.
Patent GB-1149812-A (GB)
Title: Subbing process for photographic films
IPC: G03C1/91
Filed: 1967-03-31
Abstract: 1,149,812. Photographic silver halide materials. FUJI SHASHIN FILM K.K. March 31, 1967 [March 31, 1966], No. 14914/67. Heading G2C. [Also in Division B2] Photographic silver halide material is made by coating a silver halide emulsion on to a film support of a linear polyester containing aromatic carbonyl groups which has been rubbed by irradiating the photographic film, during the production step of stretching it two-dimensionally or the subsequent step of setting it thermally, with U. V. rays and then applying to the irradiated surface a solution or a dispersion of gelatine or a hydrophilic resin in a mixed organic solvent containing 1-25% by weight of a solvent and/or a swelling agent or said polyester. The radiation may be conducted at 90-250‹C. the polyester may be polyethylene terephthalate or poly-1, 4- cyclohexylene dimethyl terephthalate or of a co-condensation polyester of terephthalic acid, isophthalic acid and glycol. The hydrophilic resin may be a synthetic polymeric compound soluble in organic solvents such as cellulose acetate phthalate, cellulose acetate maleate vinyl co-polymers such as of maleic anhydride and vinyl acetate, a mixed acetyl compound of polyvinyl alcohol containing-SO 3  M group, a mixed acetal of polyvinyl alcohol containing-COOM group a partially esterified compound of a divalent acid, a mixture of polyvinyl pyrrolidone and polyacrylic acid. A dispersion of a gelatine may also be used. Numerous suitable solvents are specified as well as suitable swelling agents. Other ingredients for example for improving the adhesive property to the film support or the emulsion layer, preventing the generation of electro-static charges and for coalering the support may be added to the under coating liquid. A hardening agent such as ethylene amine derivative or an epoxy derivative may be incorporated in the layer.
Patent GB-454040-A (GB)
Title: Improvements in or relating to fountain or reservoir pens
IPC: B43K5/18
Filed: 1935-05-24
Abstract: 454,040. Fountain pens. HORN, A. S., 60, Osmaston Road, Prenton, Birkenhead. May 24, 1935, No. 15130. [Class 146 (iii)] In a self-filling fountain pen of the kind provided with an air-tube b extending from the feed-bar a into the reservoir and communicating with the ink-feed duct c by means of a lateral passage d, the latter opens at the rear or side of the feed-bar and is connected to the ink-duct by a curved or tortuous channel e formed in the side of the feed-bar. In use, air is expelled from the reservoir through the channels b, d, e, c, and ink is drawn directly into the reservoir through the channel c. The channel e is preferably of the same cross-sectional area as the channel c.
Patent GB-988677-A (GB)
Title: Improvements in or relating to radio-frequency signal receivers
IPC: H04B7/10
Filed: 1961-04-27
Abstract: 988,677. Radio receiving systems. M. KATZIN. April 27, 1961 [April 27, 1960], No. 15278/61. Heading H4L. In a system for receiving a desired radio signal in the presence of noise, the desired signal and the noise having different polarization components, the receiver comprises means for deriving a first pair of signals representing two polarization components of the noise signal alone, a second pair of signals representing corresponding polarization components of the desired signal plus the noise signal, and means responsive to a comparison of the first pair of signals to generate a control signal and modify the second pair of signals to achieve substantial cancellation of the noise signal upon recombination thereof. As shown, an antenna 4, preferably of the horn type, feeds a polarizer 41 which separates the received signal into vertical and horizontal components. The vertical component is supplied to filters 44 and 45, the filter 44 passing a band of noise only and the filter 45 passing the required signal plus noise. Similarly, the horizontal component is supplied to filters 46, 47, passing noise and signal plus noise respectively. The noise components VI, HI are passed through controllable attenuators 48, 49, and via 50, 51 are supplied to respective amplitude detectors 52, 53 whose outputs are combined in a differential amplifier 54 providing D.C. difference signals in opposite sense on leads 55, 56. These signals control the gain of attenuators 48, 49 respectively in opposite senses so as to equalize their outputs. The equalized signals VI, HI are supplied via controllable phase shifters 60, 61 respectively to a phase detector 62 supplying a signal representing the phase difference and sign of the phase difference to an amplifier 63. Oppositely phased D.C. control signals are supplied by the amplifier 63 to control the phase shifters 60, 61 to equalize the phases of the signals derived therefrom. The control signals on leads 55, 56 are also supplied to the controllable attenuators 70, 71, through which pass the signals from filters 45, 47 respectively to provide outputs wherein the noise components are equal in amplitude but in general the wanted signal components are unequal. Similarly, the phase shifters 74, 75 are controlled by the signals on leads 76, 77 respectively to bring the noise components into equal phase but not the signal components. A differential amplifier 78 combines the outputs of the phase shifters 74, 75, the noise components being cancelled and the signal components added.
Patent GB-152940-A (GB)
Title: Improved stropping-apparatus for safety-razor blades
IPC: B24D15/08
Filed: 1920-06-07
Abstract: 152,940. Middeldorf, R. June 7, 1920. No Patent granted (Sealing fee not paid). Stropping - apparatus. - A stropping-apparatus for doubleedged blades comprises a pair of rollers o, p, mounted between rocking-plates m, n carried on a hollow shaft e, which is journalled in end walls c, d of a block supported by a ring b. The blade h to be stropped is mounted on pins i in a holder f, g, which is inserted in the shaft e through recesses k, l in the wall c and plate m respectively, the blade projecting through longitudinal slots in the shaft. A cord s passes over the bosses of the rollers o, p, and over guide-rollers t, and when its ends are pulled the plates m, n are oscillated to move the driven rollers o, p into and out of contact with the blade.
Patent GB-1145063-A (GB)
Title: Improvements in or relating to novel steroids and the manufacture thereof
IPC: C07J3/00
Filed: 1966-04-06
Abstract: 1,145,063. Steroids. UPJOHN CO. 6 April, 1966 [7 April, 1965], No. 15373/66. Heading C2U. Novel compounds of the formula wherein S is a generic expression denoting α- and #-double bonds and mixtures thereof; the 4(5) carbon linkage is a single or a double bond with the proviso that the 5-hydrogen atom is absent when the 4(5)-carbon atom linkage is a double bond, R, R 1  and R 2  are selected from hydrogen and methyl; Y is Z being hydrogen, tetrahydropyranyl or the acyl radical of a (C 1 -C 12 ) hydrocarbon carboxylic acid, are obtained by heating a corresponding compound of the formula with an acid. Starting 3-keto-#<SP>4</SP>-androstenes may be saturated by hydrogenation and further reduced to form a mixture of 3-(α and #)- hydroxy-androstanes. A 17-acylate grouping if present may be hydrolysed to form a 17- hydroxy compound. 3-Desoxy starting compounds are obtained by converting the 3- oxygenated compounds in the corresponding thioketal by reaction with an alkanethiol, followed by desulphurization of the latter, e.g. with sodium in liquid ammonia. The 3-dihydropyranyl ether starting compounds may be obtained by reacting a 3-17-dihydroxy-5α- androstane 17-acylate with dihydropyran in the presence of a Lewis acid, and if desired the 17-acylate is then hydrolysed. Pharmaceutical compositions having anabolic, anti-fertility, anti-androgenic, anti-estrogenic, CNS-regulating, antimicrobial activities and also useful in the prevention of atherosclerosis and thromboembolic disease and containing the above compounds are administered orally or parenterally.
Patent GB-1127087-A (GB)
Title: Recovery process for cyclic oligomers
Inventor: RIKE ZEB WILLIAM
IPC: C07C7/148
Filed: 1967-04-04
Abstract: 1,127,087. Recovering cyclic oligomers. E. I. DU PONT DE NEMOURS & CO. 4 April, 1967 [6 April, 1966], No. 15405/67. Heading C5E. C 8-18  cyclic oligomers are recovered from the reaction product of an oligomerization reaction conducted in the presence of a halidecontaining catalyst, by adding to said product sufficient anhydrous ammonia to react with the halides present in the catalyst, rapidly vaporizing the volatile products of the treated mixture, condensing the vapours, and recovering the desired oligomer from the condensate. Water may be added to the vapours so as to obtain a two-phase condensate, which may be separated by centrifugation. In an Example, wherein butadiene is trimerised to 1,5,9-cyclododecatriene in a 3-stage reactor system, the catalyst being ethylaluminium sesquichloride and TiCl 4 , cyclododecatriene being present as solvent, ammonia is bubbled through the product from the third stage, the resulting mixture is treated in a thin-film evaporator, 1% water added to the vapours, and the organic layer containing the product is separated from the resulting condensate by centrifugation.
Patent GB-1391735-A (GB)
Title: Isoxazolyl derivatives useful as odoriferous and flavouring agents
IPC: A23L27/20
Filed: 1973-03-30
Abstract: 1391735 Perfumes FIRMENICH SA 30 March 1973 [30 March 1972] 15561/73 Heading A5B [Also in Divisions A2 and C2] Compounds of the formula: wherein the carbocyclic ring contains one endocyclic double bond in position 1, 2, 3 or 4, or an exocyclic double bond in position 2, or two conjugated double bonds in positions 1 and 3, the double bonds being represented by the dotted lines, and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are H or alkyl of 1 to 6 carbon atoms may be used in perfume compositions.
Patent GB-250062-A (GB)
Title: Improvements in or relating to automatic pipe couplings
IPC: B61G5/08
Filed: 1925-06-16
Abstract: 250,062. Sellers, N. N. June 16, 1925. Couplings, disconnectible; with valves.-Train pipes 10, 11, 12 on adjacent cars are connected to like coupling members 16 each of which has a projection 27 adapted to be received by an opening 28 in the other member and to be locked therein by pivoted dogs 30, said dogs 30 having their working extremities normally extended through the sides of the projection by means of a resilient element 32 and being arranged to engage the member receiving the projection. The resilient element 32 is connected to a rock shaft 37 by a link 35 whereby the dogs 30 can be released, and in order to eliminate the necessity of operating the rock shaft on each of the adjacent cars to uncouple the members 16 a split annulus 41 is provided directly behind and surrounding each opening 28 which is formed with shoulders 42 arranged to engage the dogs 30 received by said opening. The free ends of the annulus 41 is connected bv a cable 44 and link 46 to the rock shaft 37, so that when said shaft is rotated to release the dogs 30 on one of the coupling members it will cause the shoulders on the split annulus to release the dogs on the other coupling member. Each coupling member 16 is normally maintained in a projected position by springs 17, and when they are coupled together they are moved against the tension of said springs and, in so doing, open valves 14 in each pipe line through a rod 21 and gear wheels 18. The valves may also be opened and closed manually and independently of the above described automatic means.