baber/WOPTO huggingface dataset:
Patent GB-330622-A (GB)
Title: Improvements in insulated cooling systems for electrodes
IPC: H01J35/12
Filed: 1929-03-11
Abstract: 330,622. Smith, F. S. March 11, 1929. Submersible.-The circulating pump of an insulated cooling system, for high-voltage electrodes, such as the electrodes of a R÷ntgen-ray tube, rectifier, amplifier, or oscillation generator, is surrounded by a receptacle to catch any leakage therefrom. As shown, a cooling arrangement for the anticathode 13 of a R÷ntgen-ray table 12 is supported on insulators 28 and comprises a rotary pump 3 which is submerged in the cooling liquid contained in a receptacle 1 and has an inlet 5 and outlet 4. A motor 8 mounted on a cover plate 2 drives the pump through a coupling 9 and is energized through a transformer 11. A stuffing-box 7 is mounted above the liquid level. The liquid, which is circulated as indicated by the arrows, is forced through a multi-tabular multi-pass cooler through which air is drawn by means of a blower 23, which is connected to the cooler casing 19 through an insulating tube 21. The liquid may be a mixture of 4 parts of water and 1 part by weight of glycerine which serves to lubricate the graphite-bronze bearings of the pump.
Patent GB-309287-A (GB)
Title: Improvements in dentists' casting machines
IPC: A61C13/20
Filed: 1928-03-15
Abstract: 309,287. Sturley, J. A. March 15, 1928. Casting-machines; moulds.-The stand a for a dental flask e carries a burner l and a support k for the cover g and wet pad or other pressure applying means. The stand is perforated at b and the flask e is preferably mounted by means of a pin i which may be screwed to take a wing- nut.
Patent GB-458545-A (GB)
Title: Improvements in spray carburetters
IPC: F02M1/00
Filed: 1936-03-17
Abstract: 458,545. Spray carburetters. EICHRODT, H., 6, Reichstrasse, Karlsruhe, Germany. March 17, 1936, No. 7953. [Class 7 (iii)] In a carburetter having a mixing chamber for the fuel and part of the air, the chamber being formed by a fixed sleeve in which slides a tubular extension of a distributing disc for the mixture, the disc being raised and lowered in the main air passage to form a throttle valve, a foam of air and oil is formed in the chamber by introducing the air through apertures in the lower portion of the wall of the tubular extension, the apertures being tangential to the wall of the chamber, and the mixture is drawn over the surface of the distributer disc on top of the mixing chamber, the disc having an edge to spray the foam into a main air current flowing at high speed through an adjustable annular opening surrounding the edge. Fuel supplied by a pipe e to a passage f in a sleeve member w, centrally disposed in the body of the carburetter, is emulsified by air drawn up spaces c<1> between the member and the skirt o<1> of a distributer 0, the member having ribs k to space the skirt therefrom, down a space between a longitudinal bore in the sleeve member w and a tubular extension h of the distributer 0, and through tangential passages l to the interior of the tubes h. The emulsion or foam so formed flows up a central passage g and through radial passages m to a space between the distributer and a sharpedged disc i off the edge of which it is drawn by the main air current. The distributer O is mounted on a rocking lever P and may be raised to bring the disc i into contact with the body to cut off the air and emulsion supplies, the lever then lowering a plunger S in a cylinder K to expose an air inlet 3 and light fuel nozzle 4 to a mixture inlet 5 used for starting. When the distributer i is lowered, the tubular member h forces fuel for acceleration up the passage g.
Patent GB-492300-A (GB)
Title: Improvements in or connected with air brakes for aircraft
IPC: B64C9/32
Filed: 1937-03-18
Abstract: 492,300. Controlling aircraft. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and MoVIE, R. March 18, 1937, Nos. 7960 and 24214. [Class 4] A resistance flap c, Fig. 5, is mounted on an extension flap a<2> and is operatively connected to a fluid-pressure actuated device, the supply of fluid to which is controlled electrically in such manner that the resistance flap is operable in all adjusted positions of the extension flap. Resistance flap c, Fig. 1, of which the function is to increase the drag of the wings during landing, is rested in an extension flap a<2> normally housed in recess a<1> of wing a. Flap c is pivoted at its trailing edge c<1>, Fig. 5, and is moved into the air flow by a pneumatic jack d of which the ram d<1> is pivoted to a lever c2 on the flap. The pressure source is a bottle d<5>, Fig. 1, housed in the extension flap and supplied by an air pump d<4> driven by an electric motor d<5>. Jack valves d<2> are controlled by electromagnets d<3>. At each end, flap c carries guide tubes c<3>, Figs. 7 and 8, which carry rollers c<4>, c<5> engaging in spaced curved guide channels el. Holes c<6>, c' are provided, one near each end of the guide tube, and are adapted to be engaged by a locking pin f carried by a spring- pressed plunger f contained in a housing f<3>. Withdrawal of pin f is effected by a solenoid f<4> also housed in f<3>. The circuits controlling electromagnets d3, motor d<4>, solenoids f<4> and a flap position indicator g<7>, Fig. 2, comprise leads g, g<1>, g<2>, g3 which are connected to arcuate strips g<9>, Figs. 1 and 4, on the fuselage b adapted to be engaged by contacts g<8> movable with the extension flap. Energy is derived from a source g<5>, Fig. 2, and the return of the circuits is effected through the frame. In a modification, flap c is pivoted at the leading edge. According to the Provisional Specifications, the electro-pneumatic control means may be applied to a flap nested in the main wing.
Patent GB-766976-A (GB)
Title: Method of and apparatus for carrying out exothermic catalytic reactions under high pressure
IPC: C01C1/04
Filed: 1955-03-18
Abstract: <PICT:0766976/III/1> The temperature of the reactant gases in a high pressure catalytic exothermic gas reaction is controlled by circulating a coolant by convection through heat exchangers in the reaction chamber and extracting heat from said coolant externally of said chamber, the cooling circuit being in pressure communication with a gas circuit for the reactant gases, as in the parent Specification. In the illustrated and preferred apparatus, hydrogen and nitrogen from M under pressure are passed through a heat exchanger D, upwardly around a catalyst chamber and then down through successive beds B1-B4 of catalyst alternating with cooling devices C1-C3, finally passing through heat exchanger D where their heat is given up to incoming gases before the ammonia is condensed in vessel F and remaining gases are recycled by pump G.  Water in the cooling devices C1-C3, rises by convection into the steam boiler L where steam at lower pressure is formed.  An expansion pot P is provided in which water is collected and the pressure of the gas circuit is applied via pipe Q at this point.  To avoid penetration of steam into the gas circuit, pot P is maintained (when using a pressure above the critical pressure of water) at below the critical temperature of water.  It is preferable to connect pot P to the lower end of the coil in the boiler L and not as shown.
Patent GB-558526-A (GB)
Title: Improvements in spindle mountings for spinning and twisting frames
IPC: D01H7/06
Filed: 1942-06-11
Abstract: 558,526. Spindles for spinning frames. SACOLOWELL SHOPS. June 11, 1942, No. 8000. Convention date, Oct. 10, 1941. [Class 120 (ii)] The spindle of a spinning and twisting frame is supported in an aperture in the spindle rail by means which permits both centreing and plumbing adjustments of the spindle, the supporting means including non-metallic resilient cushioning means which isolates the spindle from the rail and minimises the transmission of vibration from the spindle to the rail. As shown in Fig. 1, the non-rotating spindle 2 carries a base 7 having a machined surface cooperating with a similar surface on a flanged supplemental base 8 secured in the aperture in the spindle rail 6 by a nut 10, the resilient cushioning washers 9 being interposed between rail and the flange of the supplemental base and the nut 10 ; the spindle is fixed to the base 8 by a nut 12. There is ample clearance between the spindle and bushing 8 to permit centreing of the spindle and in plumbing the spindle shims are inserted between the machined surfaces of the bases 7, 8. In Fig. 4 the base 18 of a rotary spindle is adjustably secured to the supplemental base 21 by a nut 22, the resilient cushioning washers 20 being disposed between the flange of the base 18, the nut 22 and the surfaces of the flange of the base 21 which is secured in the rail 24 by a nut 25 ; a non-rotary spindle may be similarly secured to the supplemental base and in each case by releasing this base from the rail the spindle, spindle base, supplementary base and cushioning means may be removed as a unit from the rail. In another form the screwed end of a non-rotary spindle is secured by a nut to a flanged spindle base which projects through the rail and is clamped by a nut to the cushioning washers disposed between the surfaces of the flange of the supplemental base, a nut and the flange of the spindle base.
Patent GB-566307-A (GB)
Title: Improvements in the manufacture of halogenated carboxylic acids and compounds derived therefrom
IPC: C07D307/33
Filed: 1943-05-20
Abstract: 3-Aryl-1,5-dihalopentane-3-carboxylic acids are prepared by treating 4-aryl-tetrahydropyrane-4-nitrile with a strong hydrohalogen acid, preferably fuming hydrobromic acid.  The 3-aryl compounds are treated with alkali to form aryl or haloalkyl substituted butyrolactones, which may be heated with alcoholic ammonia or with a cycloalkyl, aralkyl, or arylamine to form a pyrrolidone or lactam having a hydroxyalkyl side-chain, or the butyrolactones are treated with alcoholic ammonia followed by acid, or with a (preferably primary) alkylamine to form aminoalkyl and aryl substituted butyrolactones. The 3-aryl-1,5-dihalopentane-3-carboxylic acids may be esterified and then treated with a primary alkyl amine to give by ring closure a 1-alkyl-4-phenyl-piperidine-4-carboxylic acid alkyl ester or the esters may be treated with ammonia to give an aminoethyl pyrrolidone or lactam, followed if desired by alkylation to give an alkylaminoethyl and aryl substituted pyrrolidone or lactam. In examples, 3-phenyl-1,5-dibromopentane-3-carboxylic acid is made by heating 4 - phenyl - tetrahydropyrane - 4 - nitrile with fuming HBr, and is converted into phenyl-bromoethyl-butyrolactone by treatment with sodium bicarbonate.  Other compounds prepared are phenyl - methylaminoethyl - butyrol - actone, 1 - methyl - 4 - phenyl - piperidine - 4 - carboxylic acid ethyl ester hydrochloride (pethidine hydrochloride), the acetyl ester hydrochloride, phenyl - hydroxyethyl - pyrrolidone, diphenyl hydroxyethylpyrrolidone, phenyl cyclohexyl hydroxyethylpyrrolidone, phenyl benzyl hydroxyethylpyrrolidone, phenyl aminoethylpyrrolidone, phenylmethylaminoethylpyrrolidone, 1-ethyl-4-phenyl-piperidine-4-carboxylic acid ethyl ester hydrochloride, phenyl-ethylamino-ethyl butyrolactone, phenyl n-propylamino-ethyl butyrolactone, and phenyl piperidineethyl butyrolactone.  Specification 517,414 is referred to.
Patent GB-547863-A (GB)
Title: Improvements relating to the protection of polyphase electrical apparatus
IPC: H01H71/12
Filed: 1941-06-26
Abstract: 547,863. Automatic circuit-breakers; protective cut-out arrangements. GILLESPIE, J. M., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 26, 1941, No. 8049. [Class 38 (v)] A polyphase circuit supplying, for example, the motors driving boiler-house auxiliary plant, is protected against single-phasing by shunting the fuse in each line by a current-operated relay adapted, when energized by the blowing of its fuse to trip the mechanical lock of all the contactor-type switches in the several lines either directly or through a further relay. In cases where the contactor switches may be incapable of interrupting heavy currents, and the relay itself is of insufficient impedance, external impedance may be added in the relay operating circuit to reduce the current to a value within the capacity of the contactors. The fuses are preferably of the h.r.c. type. The contactor switches are mounted on a common operating shaft 1 and closed by the windings 5 and armature 4, a projection 6 on which is engaged, in the closed position, by a roller 7 on a crank 8. When any one of the fuse-shunting relays Ra .. Rc is'energized, the armature 10a or 10b or 10c is attracted and rotates shaft 9 clockwise so as to turn the roller 7 into unlatching position. Alternatively, the roller 7 may be tripped by a single trip coil under control of parallel-connected contacts operated by the respective shunting relays.
Patent GB-673839-A (GB)
Title: Improvements in automatic frequency-control circuits for electric oscillation-generators
IPC: H03L7/107
Filed: 1949-03-24
Abstract: 673,839. Automatic frequency control systems. PHILIPS ELECTRICAL, Ltd. March 24, 1949 [March 27, 1948], No. 8055/49. Class 38 (iv). The control voltage derived by mixing a controlled oscillation with an oscillation of standard frequency is fed to the frequency corrector through two channels, one for direct and slowly changing voltages, the other for alternating voltages, and the latter channel is designed to give increasing attenuation as the amplitude of the alternating voltage decreases. As shown, the controlled oscillator valve 1 feeds a mixer 9 which is also supplied with harmonic components from a pulse source 8 of standard frequency. The mixer output js fed through a low-pass filter 10, which rejects the pulse frequency, to two channels, one of which 15 passes only direct and slowly-varying voltages, and the other 16 passes alternating voltages. The second channel includes reversely-arranged diodes 17, 18 which are biased by resistors 20<SP>1</SP>, 20<SP>11</SP> fed from the D.C. source 5, 6 in such a way that alternating voltages of low amplitude, such as may be produced accidentally by parasitic couplings &c. are attenuated or suppressed. The two control-voltage channels combine across the condenser 24 and are applied to the grid of a valve reactance 12 or other frequency corrector associated with the oscillator 1; or the two channels may operate on separate frequency correcting devices. If selenium cells are used instead of diode valves, the biasing arrangements are omitted. As an alternative, the diode valves may be replaced by an amplifier of which the amplification decreases as the input amplitude decreases. In a further modification, the D.C. channel includes a series choke coil and a shunt condenser; and the A.C. channel a condenser and a relay coil. When the A.C. amplitude falls below a certain value, the relay coil operates a switch and disconnects the shunt condenser.
Patent GB-1457396-A (GB)
Title: Gona-4,9,11-triene derivative process for its preparation and compositions incorporating it
IPC: A61P5/00
Filed: 1975-02-27
Abstract: 1457396 A 17# - pentyloxyestratrienone ROUSSEL UCLAF 27 Feb 1975 [20 Sept 1974] 8166/75 Heading C2U The invention comprises 17#-pentyloxyestra- 4,9,11-trien-3-one (I) and its 3-ketals; and their preparation from 3-ketal-17#-hydroxy-estra- 4,9,11-trienes by reaction with an alkaline agent and a pentyl halide, followed when required by acidolysis of the ketal group. Anabolic and androgenic compositions for oral and parenteral administration comprise compound I and a carrier.
Patent GB-526816-A (GB)
Title: Improvements in the conversion of zinc, zinc alloy, galvanised, cadmium and cadmium alloy surfaces for ensuring paint and enamel adhesion
IPC: C23C22/18
Filed: 1939-03-14
Abstract: 526,816. Coating metals. ROBERTS, S. T., and TAYLOR, F. March 14, 1939, No. 8203. [Class 82 (ii)] A zinc, zinc alloy or galvanized surface is converted into a paint receptive one by immersing the article in a solution at temperatures of 140-200‹F. containing phosphates of zinc, manganese or cadmium, cobalt and/or nickel and a little free phosphoric acid produced by adding zinc and manganese or cadmium salts, preferably carbonates, and the carbonates of cobalt and/or nickel to a bath of phosphoric acid. If the article has a cadmium, cadmium alloy or galvanized surface, it is immersed in a solution containing the phosphates of zinc, manganese, cobalt and/or nickel prepared in similar fashion to the zinc &c. bath. An oxidizing agent such as sodium perborate, potassium permanganate or sodium nitrate may be added to the bath.
Patent GB-818364-A (GB)
Title: Improvements relating to apparatus for dispensing pastes, creams and liquids
Inventor: GREEN EDWARD RAMSAY
IPC: A47K5/12
Filed: 1955-12-20
Abstract: 818,364. Reciprocating pumps. NEWTON, CHAMBERS & CO. Ltd. Dec. 20, 1955, No. 8240/58. Divided out of 818,363. Class 102(1). A modification of the dispenser described in Specification 818,363 in which the piston 15 is provided with a helical groove or shoulder extending from the front face. The piston is secured in adjusted position by engagement of the toothed end 38 in a splined opening 39 in a  fixing plate 40.
Patent GB-684739-A (GB)
Title: Improvements in and relating to methods of brazing particularly methods of brazing resistor terminals
IPC: B23K1/19
Filed: 1951-04-10
Abstract: In brazing an electric resistance wire of 80 per cent Ni, 20 per cent Cr to a steel terminal bolt the latter is plated with an alloy of Cu-3 per cent Co, or 85 per cent Cu, 10 per cent Ni, 5 per cent Fe to form the brazing metal.  Specification 144,767, [Class 39(iii)], is referred to.
Patent GB-1041788-A (GB)
Title: Novel benzothiazole monoazo dyestuffs
IPC: C09B45/00
Filed: 1964-02-27
Abstract: The invention comprises 2-(2-benzothiazolylazo)-p-cresols free from water-solubilizing substituents (i.e. groups which ionize readily in water) and substituted in 6-position by a substituent other than ethoxy.  Specified 6-substituents are alkyl, alkoxy, nitro, halogeno, alkylthio, sulphone and sulphonamido.  The dyes are prepared by coupling suitable diazotized 2-aminobenzothiazoles with p-cresol. The dyes are used to colour polyolefins containing complex-forming metals, by the method described in Specification 992,561, in green shades.
Patent GB-603221-A (GB)
Title: Improvements in and relating to electrical control systems
IPC: G05B11/01
Filed: 1944-05-03
Abstract: 603,221. Aircraft controls. SPERRY GYROSCOPE CO., Inc. May 3, 1944, No. 8381. Convention date, May 3, 1943. [Class 4] [Also in Groups XXXV and XXXVIII] In a control system, comprising a controlled object driven by a servomotor in accordance with signals, e.g. from an automatic pilot, an electric signal proportional to the value of the torque or force exerted by the motor on the controlled object, is used to modify the control of the motor. As shown in the Figure, servomotor 35 drives object 34 through a flexible shaft 12 of reduced cross-sectional area so that a greater torsional movement takes place between the two ends. The relative displacement between the two ends may be measured, as shown, by mounting the stator 37 of a Selsyn instrument at one end and the rotor at the other, or by having a Selsyn transmitter and receiver at opposite ends of the shaft as in Fig. 1 (not shown). The output from the Selsyn instrument is combined with signals from a gyro pick-off &c. 78 in the automatic pilot to which are added rate and acceleration components at 80, 81 as described in Specification 629,104 in power amplifier 68<SP>1</SP>. The signal dependent on torque is applied in opposition to the signal from 78 and the resultant energizes the field winding of Ward-Leonard generator 74 which controls the motor 35. The Selsyn transmitter and receiver may be replaced by a potentiometer as in Figs. 5 and 6 (not shown), the resistor being mounted at one end of the shaft and the contact arm at the other. The Specification as open to inspection under Sect. 91 comprises also arrangements, Figs. 7 and 8 (Cancelled) (not shown), in which instead of a torque-dependent signal, a signal depending jointly on airspeed and on the position of a control surface is combined with the signal from the gyro &c. apparatus. These arrangements are not included in the Specification as accepted.
Patent GB-879487-A (GB)
Title: A proportional mixer
Inventor: BRANT ERNEST HENRY
IPC: G01F19/00
Filed: 1959-03-11
Abstract: 879,487. Regulating liquid levels. BLUNDELL, SPENCE & CO. Ltd. Feb. 18, 1960 [March 11, 1959], No. 8389/59. Class 123(1) 'An appliance for accurately measuring predetermined proportions of different liquids, or granular or powdered substances, and particularly for mixing paint comprises a tiltable platform 4 having upstanding pins 10 to support a container and which is pivoted and seated respectively at its front and rear ends on spindles 2, 3 bridging two spaced apart base members 1 one of which carries an arcuate plate 5 with a slot 6 through which extends a screw 7 carried by the platform and having a securing wing nut. In use a datum clip 12 is clipped over the rim of a container which is placed on the platform 4 and a pointer 9, at the forward end of the platform 4, is set against an appropriate mark on a scale which is graduated in units of volume alongside the slot 6, the substance then being introduced into the container until it reaches the clip 12. The platform 4 can be moved by a worm drive and a dial indicator, driven from the spindle 2, may replace the quadrant scale. The datum may take the form of a fixed hole.
Patent GB-883049-A (GB)
Title: Improvements in fluid-operated servo mechanisms
Inventor: ELMER ARTHUR ERNEST HENRY
IPC: F15B9/09
Filed: 1959-03-11
Abstract: 883,049. Fluid-pressure servomotor-control systems. DOWTY ROTOL Ltd. March 10, 1960 [March 11, 1959], No. 8444/59. Class 135. A fluid-operated servo mechanism comprises a piston member 20, movable in cylinders 16, 17, and provided with a duct 26 connecting the cylinder 16 to a nozzle 27. An impeding member 35, adjacent the nozzle, is reciprocable towards and away from the nozzle under the control of a transducer 32 which receives an input signal. The impeding area of member 35 is inclined to the direction of reciprocation of the nozzle at a smaller angle, for example 7 degrees, then to the direction of reciprocation of the member. In operation, fluid supplied at 12 acts on the smaller area end 21 of the piston and on the larger area end 22 and fluid escapes from the cylinder 16 through the nozzle 27 such that the piston 20 assumes a position of equilibrium. If the impeding member 35 is moved, due to an input signal, the gap between this member and the nozzle is altered and the piston 20 moves to restore the gap to its previous size. The piston 20 is provided with a land 23 such that movement of the piston provides communication between the full area side of the piston 14 of a jack 41 with a fluidpressure supply line 47 or with a drain chamber 15, the opposite side of the piston 14 being in constant communication with the fluid-pressure supply through conduit 37. Movement of the jack may act on a potentiometer 52 which feeds back current to the transducer 32 so that the jack may be moved to a predetermined selected position by an external signalling source.
Patent GB-233320-A (GB)
Title: Improvements in and relating to centrifugal separators
IPC: B04B1/08
Filed: 1925-03-30
Abstract: 233,320. Aktiebolaget Separator. May 1, 1924, [Convention date]. Density separators.-A centrifugal separator for purifying oil and other liquids, has outlets H, I as shown in the left-hand side of Fig. 1 when used for delivering two liquids continuously, and only one outlet H as shown in the right-hand side when used for delivering one liquid only; in the latter case the separated impurities remain in the sludge space. This change is secured by substituting the top plate K for the top plate G. In order to ensure that with each method of working the lighter component is delivered into the same vessel, an element L with opening M. Fig. 2. is used instead of the disc H, Fig. 1, when only one liquid is delivered.