baber/WOPTO huggingface dataset:
Patent GB-771850-A (GB)
Title: Novel sulphones and a process for the manufacture thereof
Filed: 1955-07-06
Abstract: The invention comprises compounds of the general formula <FORM:0771850/IV(b)/1> and acid addition and salts thereof, wherein R stands for a hydrogen atom or an alkyl radical of one to six carbon atoms, "Aryl" stands for phenyl or a nuclear substituted phenyl radical, in which the substituent is a halogen atom, a nitro, hydroxy, cyano or amino radical, or an alkoxy, acyloxy or acylamido radical, containing as its characterizing moiety an alkyl group of 1 to 6 carbon atoms.  The compounds are made by reacting an alkali-metal salt of pyridine-(3)-sulphinic acid with a phenacyl halide or a halogeno, cyano, nitro, alkoxy, acyloxy or acylamido substituted phenacyl halide, in an organic solvent and, if desired, hydrolysing the acyloxy, acylamido or alkoxy substituent and/or converting the compounds so obtained into acid addition or quaternary salts.  Suitable organic solvents are ethanol, dimethyl-formamide, acetone and nitro-methane.  When quaternary salts are required the free base may be treated, for example, with an alkyl halide, aralkyl halide or phenacyl halide. Examples describe the preparation of (1) phenacylpyridyl-(3)-sulphone and the corresponding quaternary methyl bromide, ethyl bromide, propyl bromide, butyl bromide, amyl bromide, p-nitrobenzyl bromide and phenacyl chloride; (2) a -methyl-phenacyl pyridyl-(3)-sulphone and its methobromide; (3) p-bromo-phenacyl pyridyl-3-sulphone and its methobromide; (4) p-methoxy-phenacyl pyridyl-(3)-sulphone and its methobromide; (5) p-acetoxy-phenacyl pyridyl-(3)-sulphone, its methobromide and, by hydrolysis, the corresponding 1 - methyl - 3 - (p - hydroxy - phenacyl - sulphonyl)-pyridinium bromide; (6) p-cyanophenacyl pyridyl-(3)-sulphone and its methobromide; (7) p-nitro-phenacyl pyridyl-(3)-sulphone and its methobromide and (8) p-acetamido - phenacyl pyridyl - (3) - sulphone, its methobromide and, by hydrolysis, the corresponding 1 - methyl - 3 - (p - aminophenacyl - sulphonyl)-pyridinium bromide hydrobromide.  Phenacyl halides. p-Acetoxy-phenacyl bromide and p-cyano-phenacyl bromide are made by the action of bromide on p-acetoxy-acetophenone and/or p-cyano-acetophenone respectively.
Patent GB-222260-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/30
Filed: 1923-07-31
Abstract: 222,260. Cloud, J. W., and Westing house Brake & Saxby Signal Co., Ltd. July 31, 1923. Fluid-pressure. - The graduating valve of the triple valve is adapted to effect graduated release as well as application of brakes, the graduating valve being returned to lap position by a spring or other resilient device upon equalization of the increased train-pipe pressure into the auxiliary reservoir. The graduating valve 5 secured to the rod of the usual valve piston 2 is normally maintained in the position shown relative to the main valve 1 by a spring 7. In the full release position of the parts the piston 2 is disposed at the extreme left of the chamber 3 in which communication between the train pipe and the passage connected to the auxiliary reservoir is established through the usual feed groove 14, the brake cylinder passage 11 in the valve seat being connected to the exhaust passage 12 by the cavity 13 in the main valve 1. Upon a reduction in train-pipe pressure to apply the brakes the piston 2 moves to the extreme right. A tappet T strikes the main valve and carries it to the position shown the graduating valve being moved to a position in which it uncovers the passage 15 so that air flows from the auxiliary reservoir to the brake cylinder through this passage and the passage 11 until the fall of pressure in the auxiliary reservoir, assisted it may be by a spring stop 8, causes the piston 2 to return the valve 5 to the lap position shown. During this last movement of the valve 5, the main valve 1 remains at rest owing to friction against the valve face. A partial release of the brakes may be effected by a slight increase in the train-pipe pressure sufficient to move the piston 2 against the action of the spring 7, the main valve 1 being held in the position shown by friction, whereby a cavity 16 in the valve 5 and a passage 18 in the main valve 1 connect the brake cylinder passage 11 to the exhaust passage 12. At the same time the trainpipe 17 is connected to the auxiliary reservoir through a restricted extension 19 of the groove 14 and when equalization of pressures through this extension has been effected the valve 5 is returned to the lap position shown to stop the exhaust of the brake cylinder. The spring stop 8 which as shown is arranged in the usual accelerating bulb 20 may be dispensed with. The necessary graduation of train-pipe pressure for effecting the graduated release operation may be obtained by the provision of an additional driver's valve handle, located adjacent the usual handle and arranged to control passages of restricted area.
Patent GB-691538-A (GB)
Title: Improvements in and relating to multiple amplifier assemblies
IPC: H03F3/22
Filed: 1950-08-04
Abstract: 691,538. Parallel amplifiers. TESLA, NATIONAL CORPORATION, and ZIMA, M. Aug. 4, 1950 [Aug. 11, 1949], No. 19610/50. Class 40 (iv). [Also in Group XL (c)] In an assembly of parallel amplifiers 1 having a single input 2 and feeding a common load 14 an arrangement for ensuring even distribution of the load over the individual amplifiers comprises a resistance bridge 4, 5, 6, 7 associated with each amplifier, in which one branch is divided into two parts 4, 5 having a constant voltage ratio and the other branch 6, 7 is divided into two parts the voltage ratio across which is dependent on the current, and a corrective voltage from the mid-points of the branches is fed back to correct the load distribution, operate an alarm and/or disconnect the faulty amplifier. In a second embodiment, Fig. 2 (not shown), the resistor 7 which is common to all amplifiers is replaced by a separate element at each amplifier, the elements being connected in parallel.
Patent GB-530913-A (GB)
Title: Improvements in gear changing mechanism
IPC: B62M9/124
Filed: 1939-07-05
Abstract: 530,913. Variable - speed chain gearing. WASDELL, W. K. July 5,1939, No. 19633. [Class 80 (ii)] Gear changing mechanism includes a pair of sprockets 3, 4, carried on a plate 1 which is pivotally mounted on the frame 7 and can be locked in a number of fixed positions. The chain 19 passes round the sprockets 3, 4, and one of the gears 20a, 20b or 20c on the bicycle hub 17. The plate 1 is pivoted in a casing 24 on the frame 7 and is urged to the left, Fig. 1, under spring action controlled by a chain 21. The plate 1 carries an arm 8 having a series of holes 11 into any one of which either one of two plungers 12, 13 may engage to lock the plate 1 relatively to the frame 7. The plungers 12, 13, are fixed to spring levers 12a, 13a, which are fixed at one end 15 to the frame 7, and at the other end engage a plunger 18 which protrudes from the hub 17 when the free-wheel is in operation and is withdrawn when the free-wheel is locked as described in Specification 439,839, [Group XXXI]. To change gear, the plunger 18, or other external means, moves the plungers 12, 13, to release the plate 8 and the chain 21 is operated to permit or cause sideways movement of the chain 19. A spring 28 secured to the plate 8 tensions the chain 19, and the fingers 12a, 13a, are released to permit one of the plungers 12, 13 to engage the plate 8. In a modification the locking device consists of a slidable sleeve which can be slid to clutch the parts 8, 24 together.
Patent GB-1012874-A (GB)
Title: Digital memory storage systems
IPC: H03K17/82
Filed: 1964-05-12
Abstract: 1,012,874. Associative data stores. GOODYEAR AEROSPACE CORPORATION. May 12, 1964 [May 14, 1963], No. 19674/64. Heading G4C. [Also in Division H3] An associative memory matrix uses multiaperture cores of the type shown in Fig. 1. As shown in Fig. 2, a stored bit controls the flux pattern in leg A, the normal pattern for legs A-D being as shown in lines 1 and 6 for stored 0 and 1 respectively. Non-destructive comparison of the bit stored with a bit from an interrogate word is effected by applying the interrogate bit as a d or #d pulse to line 12 or 13 according as it is 1 or 0. If the bits are the same no switching of legs B-D will take place, so that a subsequent " minor reset " pulse on line 14 produces no output on line 15, which is linked with legs C and D so that if the bits are unequal the same polarity of output pulse occurs whether they are both 1's or 0's. Thus in a matrix store by connecting the winding 15 of all cores in a row (storing one word) in series, comparison will yield no output if and only if there is equality with an interrogating word. Masking is possible by inhibiting both d and d pulses for those columns corresponding to masked bits, and hence ensuring no output at " minor reset " time.
Patent GB-613772-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/228
Filed: 1946-07-02
Abstract: 613,772. Condensers. STANDARD TELEPHONES & CABLES, Ltd., BARNARD, R. M., FEARON, J. H., and SMITH, W. A. L. July 2, 1946, No. 19740. Drawings to Specification. [Class 37] A rolled condenser of the type in which alternate foils project at opposite ends of the condenser and have connecting wires or tags secured in the projecting coils is pressed flat and has the connecting wires secured by wire staples to the metal foils. The outer covering may be of metal-backed paper, the metal backing being prevented from touching one or both electrodes.
Patent GB-1423200-A (GB)
Title: Electrostatic spraying
IPC: B05B5/08
Filed: 1973-04-25
Abstract: 1423200 Spraybooths, precipitation of particles AIR-INDUSTRIE 25 April 1973 [27 April 1972] 19753/73 Headings BIT and B2L In an electrostatic spray booth for the application of powder to articles air is alternately sucked and blown through a plurality of inclined air permeable plates or a single curved plate so that a depression in the air pressure in the cabin is produced and the excess powder is recovered. As shown articles 3 to be coated are passed through the booth on a conveyor 4 past a movable electrostatic spray gun 6 mounted for vertical reciprocation. Excess powder falls through a hole 23 in the base of the booth to a collector 24. The base of the booth is formed of air permeable plates 7-10 and a chamber is formed below these plates by a non-permeable plate 11. The chamber thus formed is connected to a pair of three way valves 14, 19 and a continuously driven pump 17. The valves are gauged for operation together but can also be arranged to be independently operated. Each has one outlet to the atmosphere, one to draw in air and the other to vent excess air. The pipe 13 blows air into the chamber 11 and pipe 12 draws air from the chamber. They are arranged to operate alternately but suction is applied for longer periods than air is blown in. In a modification the base may be formed as a single inclined air permeable plate which leads to a known type of fluidised bed conveyor which carrier powder to a collector. The base may be formed as an inclined curved plate and the curvature may extend up to the top of the booth. The base may also be formed of two inclined plates leading to a recovery slit and these may form two separate chambers which may be so operated at to maintain the booth in a state of low pressure whilst also providing the necessary blowing function.
Patent GB-693874-A (GB)
Title: Improvements in or relating to oscilloscopes or oscillographs
IPC: G01R13/20
Filed: 1951-08-22
Abstract: 693,874. Oscillographs. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 22, 1951 [Aug. 25, 1950], No. 19777/51. Class 37. An oscillograph is adapted to display three signals, one being applied to terminals 1, resistance 9 and plates 5, 6, the second being applied to terminals 2, condenser 10 and plates 7, 8, and the third being applied to terminals 3 to modulate in amplitude at 11 an oscillation from 12, the modulated oscillation being applied to both plates 5, 6 and 7, 8 with a phase difference equal to the angle between the plates, e.g. 90 degrees. As shown, the phase difference is produced by feeding plates 5, 6 from the resistance 9 and plates 7, 8 from resistance 9 and condenser 10 in series. As a consequence, the trace 14 is produced by signals applied at 1, 2 and the signal 3 superimposes on the trace 14 a spiral whose amplitude varies with signal 3 and whose pitch depends on the frequency of 12. The amplitude of the modulated oscillation is preferably small, and its frequency is high relatively to variations of signals at 1 and 2. The arrangement is particlulary suitable for cardiograms. The signals 1, 2 may be fed to two bifilar oscilloscopes.
Patent GB-651037-A (GB)
Title: Improvements relating to pipe joints and process of making them
IPC: F16L13/08
Filed: 1948-07-24
Abstract: 651,037. Pipe joints. STEWARTS & LLOYDS, Ltd., and BLAIR, J. S. July 24, 1948, No. 19864. [Class 99(i)] In a joint between a ferrous pipe 6 and a ferrous pipe flange or other fitting, both parts are machined or otherwise sized to a set taper, fitted together and then secured by a capillary layer of solder 10; the external surface of the inner part and the internal surface of the outer part taper convergently and divergently towards their respective ends. Preferably, one or both of the parts are tinned prior to fitting them together, the heat being applied before and/ or after fitting. As shown, the tapered surfaces are so chosen that the two pipes do not abut or when connected to a T-piece project into the bore of the transverse branch thereof. Specifications 585,945 and 590,023 are referred to.
Patent GB-530967-A (GB)
Title: Improvements in and relating to thermal relays
IPC: H01H37/66
Filed: 1939-07-07
Abstract: 530,967. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 7, 1939, No. 19871. Convention date, July 9, 1938. [Class 38(v)] (Also in Group XIII] A bi-metallic thermal relay rendered highly insensitive to mechanical shock and vibration, comprises a pair of oppositely-acting strips 10 each secured to a yieldable member 11 on a bracket provided with an adjusting screw 14. Each strip carries a magnetizable member 19, a hollow iron sleeve 21, a silver contact 22 within the sleeve 21 and a copper sheet 23. Members 19 co-operate with poles 18 of an adjustable permanent magnet 16 of high retentivity and coercivity and consisting, for example, of an alloy of aluminium, nickel, cobalt and iron. The two strips, together with the parts carried by them, are substantially similar, so that the system is inherently insensitive to any vibration to which the relay is subjected, but any movement of the strips relative to the magnet 16 produces eddy currents in the sheets 23 and members 19 which tend to damp the movement producing them. This damping is aided by hysteresis losses in members 19 and, in the closed position, by the friction produced between the contacts due to collective movement of the strips. The magnetic force also tends to accelerate the closing and opening movements of the contacts, in the latter case, because the magnetic force diminishes more rapidly than the bending-force of the strips, increases due to the temperature-change.
Patent GB-448816-A (GB)
Title: Improvements in the manufacture of yarns, fabrics, films and similar materials having a basis of organic derivatives of cellulose
IPC: D01F2/28
Filed: 1934-09-11
Abstract: Formed filaments, yarns, foils, films, and similar materials having a basis of organic derivatives of cellulose are esterified with liquid media comprising anhydrides of lower fatty acids dissolved in diluents, with the aid of halides of zinc, tin, or iron, with or without hydrohalide acids, as catalysts.  The materials treated may have a basis of cellulose acetate, propionate, butyrate, or formate, or of methyl, ethyl, or benzyl cellulose, or of an ether-ester of cellulose.  Yarns may be treated in hanks, on perforated bobbins, or as woven or knitted fabric.  They may be subjected to shrinking, stretching, or dyeing processes prior to the esterification.  The reaction may be carried out at low or raised pressure.  The catalyst may be a chloride, bromide, or iodide of iron, tin, or zinc.  The diluent may be benzene, xylene, a hydronaphthalene, kerosene, a butyl or amyl ether, or carbon tetrachloride.  In examples, cellulose acetate yarn is treated with hydrogen chloride, zinc chloride, benzene, and acetic anhydride.  The yarn is practically insoluble in acetone.  The treatment increases resistance to water, and resistance to delustring.  The dyeing properties of the material are altered. The affinity for dispersed insoluble dyestuffs is reduced. Differential dyeing effects are obtained by dyeing a fabric containing ordinary cellulose acetate threads, and similar threads which have been esterified, by using an S.R.A. blue dyestuff.  The process of Specification 448,917 is excluded. Specifications 389,823, 438,584, 438,585, 438,586, 438,587, 438,655, and 438,656 also are referred to.
Patent GB-903236-A (GB)
Title: Improvements in and relating to the compressors of gas turbine engines
Inventor: KENT NELSON HECTOR
IPC: F04D27/02
Filed: 1960-06-07
Abstract: 903,236. Axial-flow compressors. ROLLS ROYCE Ltd. June 1, 1961 [June 7, 1960], No. 19991/60. Addition to 869,576. Class 110 (1). A compressor for a gas-turbine engine comprises a valve band encircling an apertured compressor casing, two slider members mounted on the casing for tangential sliding movement towards and away from each other and respectively connected to opposite ends of the valve band, and power means for causing the movement of the slide members, the movement causing the valve band to be moved circumferentially and radially between positions in which it respectively seals and unseals the apertures. The valve band is preferably in one piece but may comprise two separate portions, each pivotally mounted at its end remote from the respective slider member. A circumferential row of holes 17, Fig. 4, is provided in the casing 16 of the high-pressure compressor of a gas-turbine engine of the bypass type, whereby air can be bled from an intermediate stage into the by-pass passage of the engine under the control of a valve band 18 encircling the casing. A link 24, Figs. 3 and 4, and a bifurcated link 22, 23 are welded to respective ends of the valve band 18 and connected through pins 32, 29 and ball joints 47 to respective levers 45, 46, which are pivotally connected to a bracket 40. Slides 27, 28, connected to pins 32, 29, respectively, move on rails 25, 26 to guide the ends of the links. A rod 38, moved longitudinally by a fluidoperated piston (not shown), acts through toggle links 43, 44 to move the levers 45, 46 towards or away from each other whereby the band valve 18 is moved circumferentially and radially away from or towards the casing 16, thereby uncovering or covering the bleed holes 17.
Patent GB-202303-A (GB)
Title: Improved apparatus for the production of semi water gas
IPC: C10J3/00
Filed: 1923-08-04
Abstract: 202,303. Fajole, E. Aug. 8, 1922, [Convention date]. Gas - mixing appliances.-In producer gas plant the cooled gas is led by a conduit 41 to a mixing-device 43 comprising a non-return valve 46, a nozzle 44, and a bar 45 which assists the mixing action of the gas with heated air from a conduit 47, valves 49 and 50 controlling the gas and air inlets.
Patent GB-743028-A (GB)
Title: Improvements in locks for securing trucks or the like against movement
IPC: B60T3/00
Filed: 1953-07-20
Abstract: 743,028.. Track brakes. FLEXELLO CASTORS & WHEELS, Ltd., and WAPSHOTT, S. E. March 1, 1954 [July 20, 1953], No. 20105/53. Class 103 (1). [Also in Group XXX] Jacks secured to the underside of a vehicle and arranged to be extended into contact with the ground to lock the vehicle against movement, each comprise a foot supporting rod 8, which is normally retained within a housing 1 in the full line position by a spring (not shown), but is extended into the position shown in dotted line by a toggle linkage 18, 20. The bell-crank 18 of this linkage is pivoted at 17 to a plate (not shown) freely slidable on rod 8 and engaging the upper end of a spring 11, the arrangement being such that this spring is compressed when the toggle linkage is operated so that its pressure on the plate holds the links 18, 20 in the dotted line position, whilst its pressure on the foot 12 provides resilience in the jack. The bell-crank 18 and link 20 are duplicated on each side of the jack and are interconnected by a common pivot 21 and a foot pad 19. A fibre disc 15 is attached to the foot 12. In a modification (not shown) the rod 8 and housing 1 are of welded tubular construction.
Patent GB-126249-A (GB)
Title: A Safety Discharge Device for Low Potentials.
Inventor: FARANDA ALBERTO
IPC: H01T4/12
Filed: 1918-12-05
Abstract: 126,249. Faranda, A. Dec. 5, 1918 Vacuum tubes.-A safety discharge device for low potentials consists of two annular electrodes A, A' mounted on a cylinder F of insulating and incombustible material, and connected to end caps E, E<1> by platinum wires B. The electrodes &c. are contained in a glass tube D containing a highly rarefied gas. The spark gap is adjusted by turning the electrodes on the cylinder F, thereby varying the distance apart of the serrated edges shown. The end caps form the connecting means to the apparatus when protected.
Patent GB-1523980-A (GB)
Title: Therapeutic agents
IPC: A61K31/7034
Filed: 1976-05-17
Abstract: 1523980 Anticancer agent YEDA RESEARCH & DEVELOPMENT CO Ltd 17 May 1976 [27 May 1975] 20287/76 Heading A5B A pharmaceutical composition for treating tumours comprises an antigen binding dimer formed by proteolytic enzyme, e.g. pepsin digestion of an immunoglobulin preparation containing an anti-tumour antibody specific to a tumour antigen, covalently bonded to an anti-cancer drug through a functional group that is nonessential for drug and antibody activity, and a pharmaceutically acceptable carrier or diluent therefor. Drugs specified include launomycin, adrimycin, methotrexate, mithramycin, cystosine arabinoside and 6-azauridine. The antibody may be specific to antigens derived from acute lymphatic leukemia, acute myclocytic leukemia, lymphona carcinoma of the breast, bladder and testis; osteogenic sarcoma or soft tissue sarcoma.
Patent GB-148410-A (GB)
Title: Improvements in submarine sound receiving devices
IPC: G10K13/00
Filed: 1920-07-10
Abstract: 148,410. Signal Ges. Sept. 8, 1915, [Convention date]. Addition to 147,936. Subaqueous audible signals.-In apparatus for receiving subaqueous sound vibrations, a diaphragm is used tuned to a frequency lower than that to be received, and, to prevent vibration at the higher frequency with a nodal line or ring, the diaphragm is thickened or strengthened with ribs at the parts where the nodes would otherwise occur, as described in the parent Specification. Fig. 4 shows a diaphragm E strengthened with radial ribs R, leaving unstrengthened zones Za, Zi respectively round the periphery, and near the middle. An oscillating structure tuned to the signalling frequency and carried by the diaphragm comprises two masses m<1>, m<2> on an elastic rod or rods S, and a microphone j, the leads of which pass out of the casing A through a stuffing-box K. A modified form is described in which the oscillating structure is a tuning fork having its stem connected to the diaphragm and a microphone mounted between the prongs. An electro-magnetic form of receiver is described, the construction of which is similar to the electro-magnetic transmitter described in the parent Specification. The invention may be applied to non-circular diaphragms.