baber/WOPTO huggingface dataset:
Patent GB-979372-A (GB)
Title: Electrical reactor
IPC: H01F17/04
Filed: 1963-05-06
Abstract: 979,372. Locking nuts; bolts. JFD ELECTRONICS CORPORATION. May 6, 1963 [Sept. 21, 1962], No. 17807/63. Heading F2H. [Also in Division H1] A variable capacitor (see Division H1) includes a hollow bushing 13 containing a screw 20 adjustable in two nuts 30, 31 with a helical compression spring 32 interposed between them to keep the screw tightly in position against accidental rotation and backlash. The nuts each have ears 33, 36 which engage in slots 15, 16 in the bushing to prevent the rotation of the nuts when the screw is adjusted, and one of the nuts 31 is permanently captured by rolling over the end 40 of the bushing. The compression of the spring 32 is determined by adjustment of the nuts 30, 31 before the unit consisting of screw 20, spring and nuts is mounted within the bushing 13. The conductive piston 21 to be adjusted by the screw 20 is spot-welded to an extension 22 of the screw.
Patent GB-688464-A (GB)
Title: Improvements relating to electrical controlling apparatus
IPC: G05D9/12
Filed: 1949-07-06
Abstract: 688,464. Automatic liquid level control systems. EVERSHED & VIGNOLES, Ltd., BOUNDY, J. R., and BERGEN, S. A. July 6, 1950 ]July 6, 1949], No. 17893/49. Class 38 (iv). In a liquid level control of the kind desclosed in Specification 688,462, the proportional band setting is adjustable by the inclusion of a variable gain amplifier. The amplifier comprises a valve 154, the grid voltage of which is controlled by a bridge consisting of photo-electric cells 162, 163, and the two halves of a resistor 170. The balance of the bridge (determined by the relative illumination of the cells) is controlled by a light shield 160 carried by a moving coil instrument having coils 150, 152. Under normal balanced conditions, the anode current of valve 154 flowing in coil 152 is equal to the error signal current in coil 150. The gain of the amplifier is controlled by adjustably shunting these coils by a potentiometer 181. Movement of the slider to the left increases the shunting of coil 152 and decreases the shunting of coil 150 thereby increasing the sensitivity of the system ; and vice versa. The signal current in coil 150 is derived from a floatcontrolled valve 7 together with integral and differential components derived from valve 122 in the manner disclosed in Specification 688,462. The correcting current in coil 152 also flows in the coil of a relay 38 controlling a reversible servomotor 39 correctively operating the drain valve V. The motor is stabilized by a followup connection back to the arm of the relay 38 via gearing 45, 46, and a spring 48. In order to set the zero position of a coil 108 (controlling the valve 122) a constant current of predetermined value is passed through it from a current control system. This includes in series with the supply from rectifier 193, a valve 190 and a coil 194 which operates contacts 195, 198, 199 to correctively control the grid voltage of the valve. Specification 688,516 also is referred to.
Patent GB-774883-A (GB)
Title: Phenthiazine derivatives
Inventor: JACOB ROBERT MICHEL
IPC: A61K31/00
Filed: 1954-06-21
Abstract: The invention comprises phenthiazine derivatives of the formula: <FORM:0774883/IV(b)/1> and their acid addition salts and quaternary ammonium derivatives in which the -CH2-bridge is directly connected to a ring carbon atom of the piperidine nucleus, X represents a halogen (preferably chlorine) atom or an alkyl or alkoxy group containing not more than 4 carbon atoms or a phenyl or phenoxy group and R represents a hydrogen atom or an alkyl group containing not more than 4 carbon atoms or a benzyl group.  Such compounds are obtained by the method of Specification 774,882.  Preferred for therapeutic purposes are the hydrohalides and the quaternary ammonium salts.  Bases specifically described are 3 - chloro -, 3-methyl asnd 3-methoxy-10-(1-methyl-3-piperidyl)-methylphenthiazines.
Patent GB-654527-A (GB)
Title: Improvements in or relating to hot and cold water supply fittings
IPC: B05B7/04
Filed: 1948-07-05
Abstract: 654,527. Bath &c. supply fittings. STORRIE, S. July 5.1948, No. 17977. [Class 26] [Also in Group XXIX] A hot and cold water supply fitting comprising a four. way branch member 14 with a rotary plug valve 18 at the junction, has inlet branches 12a, 13a connected to hot anc cold water taps respectively, and outlet branches 15, 16, one 15 being a combinec hot and cold water outlet to a bath or sink, and the other 16 leading to a spray nozzle and formed with separate hot and cold water passages separated by a partition 25. The valve 18 has three equally spaced webs 21 whereby water from the inlet branches may be directed to either of the outlets 15, 16. The hot water passage in the outlet 16 opens into a mixing chamber 29 through a port 37. while the cold water passage leads to the mixing chamber through a tube 38, the upper end of which carries a plate 39 on which rotates a ported throttling disc 41.
Patent GB-388979-A (GB)
Title: Solder for aluminium
IPC: B23K35/28
Filed: 1932-06-27
Abstract: A solder for aluminium consists of 30 parts of aluminium, 20 parts of zinc, 15 parts of tin, 5 parts of copper, 10 parts of bismuth, and 10-20 parts of silver.
Patent GB-380835-A (GB)
Title: Highly emissive thermionic cathode
IPC: H01J9/04
Filed: 1931-06-24
Abstract: 380,835. Electronic discharge tubes., RADIOAKT.-GES., D. S. LOEWE, 10, Wiesenweg, Steglitz, and EMERSLEBEN, O., 16, Treibjagdweg, Zehlendorf, both in Berlin. June 24, 1931, No. 18234. Convention date, June 25, 1930. [Class 39 (i).] A cathode for a thermionic discharge tube is provided with an emissive layer comprising barium or another metal of the alkali or alkaline earth series in the free state and a small amount of one or more alkali or alkaline earth metal compounds having, at the working temperature, a higher electrical conductivity than the monoxide of the emissive metal present in the free state. Barium sulphide and barium cyanide are specified as compounds suitable for use with barium and the examples given relate to the use of barium sulphide with or without other compounds as follows (1) Barium sulphide is applied to the cathode and barium is atomized upon it in known manner. (2) A minute quantity of sulphur vapour is introduced into the tube either prior to or immediately after atomizing barium in excess on to the cathode. (3) Barium sulphate is applied to the cathode and barium in excess is atomized within the tube so that some of it reacts with the barium sulphate to form barium sulphide and barium monoxide. (4) A tungsten filament is coated with potassium bisulphate by passing it through the molten compound at 270-300 C. and fitted in the tube, the bisulphate is converted into the normal sulphate by heating the filament during the pumping operation, and barium in excess is atomized on to the cathode from a mixture of barium oxide and aluminium, heated at some part of the tube remote from the cathode, so that some of the barium reacts with the potassium sulphate to produce a mixture of the oxides and sulphides of potassium and barium. (5) A small amount of barium is atomized on to the cathode, a small amount of hydrogen sulphide is introduced into the tube, the excess of hydrogen sulphide and the hydrogen formed are pumped off, the tube is sealed and barium in excess is vaporized and deposited on the cathode in known manner ; in this case the electrodes other than the cathode are preferably of a metal, such as molybdenum or tungsten, not readily attacked by hydrogen sulphide. (6) Sulphur dioxide is used in place of the hydrogen sulphide in (5) with the advantage .that the electrodes may be of other metals such as nickel ; in this case the reaction of sulphur dioxide with small quantities of barium oxide present produces barium sulphide and barium sulphate and the.latter reacts with some of the metallic barium as in (3). Calcium strontium and potassium are also specified for use as emissive metals in place of barium.
Patent GB-295014-A (GB)
Title: Improvements in or relating to electrical transformers
IPC: H01F38/30
Filed: 1928-06-25
Abstract: 295,014. Koch & Sterzel Akt.-Ges. Aug. 4, 1927, [Convention date]. Transformers. - In a bushing type transformer, the central limb 3<a> of a shell type core carrying the secondary winding 4 is disposed in a tunnel 2 formed within the insulating body 1 of the bushing which is closed at the bottom by a wall 1<a>. The primary winding 5 is threaded into a space between the tunnel member 2 and the body 1. The outer lower part of the latter is sprayed with metal to form an electrostatic screen 6 which extends into a grooved flange 7 formed on the body. A metal casing 9 may be provided over the lower part of the body and outer limbs of the core, the latter being clamped between a shoulder formed on the casing and a fixing flange 8 cemented or secured by a rubber packing ring to the body 1. The opening at the upper end of the body is closed by a plate 14 through which the primary conductors pass, the plate being secured to a collar 16 abutting against a packing ring. 15. The interior of the body 1 and casing 9 is filled with a mixture of sand and graphite which serves to produce a favourable distribution of the electrostatic field. When two or more cascade-connected transformers are employed, the bushing is formed of two or more insulating bodies 1<A>, 1<B>, Fig. 5, the upper one being similar to that shown in Fig. 1, the lower ones being modified at their upper ends to abut against the core of the transformer immediately a.bove.
Patent GB-1107001-A (GB)
Title: Well completions
IPC: E21B41/00
Filed: 1965-04-30
Abstract: 1,107,001. Wells. CAMERON IRON WORKS Inc. 30 April, 1965 [22 May, 1964], No. 18376/65. Heading E1F. In a subaqueous well comprising a casing head 28, a tubing hanger 84 having flow passages 84c, 84d, and a Christmas tree 95 having flow passages 95a, 95b, means 94, 112 are provided to ensure accurate alignment of the passages in the tree with those in the hanger. The lug 94 on the hanger engages a slot 112 in a connector 99 which is lowered onto the head with the tree and has dogs 105 for connection to the head. During installation of the hanger the lug co-acts with a cam tube (74) (Fig. 5, not shown) to rotationally align the hanger, the tube being rotationally aligned with a connector (36) joining the hanger to blow out preventers by a spring pressed latch (73). The casing head is surrounded by guides for lowering the components of the wellhead, and a post (27) (Fig. 10 not shown) is adapted to support the head of a multiple flowline (113), which is connected to the tree by a section (116).
Patent GB-1142508-A (GB)
Title: Pyrrole derivatives
Inventor: TEOTINO UBERTO
IPC: C07D207/335
Filed: 1966-04-27
Abstract: 1,142,508. Pyrrole derivatives. WHITEFIN HOLDING S.A. 21 April, 1967 [27 April, 1966], No. 18424/66. Heading C2C. Novel pyrrole derivatives of the general formula wherein A is CO or CHOH, R 3  is hydrogen or an alkyl radical, and either R 2  is hydrogen, alkyl or aralkyl and R 1  is an alkyl radical, or R 2  taken together with R 1 , and the nitrogen atom to which they are attached, represent a saturated heterocyclic ring which may contain a further hetero atom and their acid addition or quaternary ammonium salts are prepared by reacting a haloketone of the formula wherein X is a halogen atom with the appropriate amine of the formula HNR 1 R 2  and reducing if desired the carbonyl group of the compound thus obtained. Compounds where R 2  is hydrogen are preferably made by the hydrogenalysis of the corresponding benzyl substituted compound. Therapeutic compositions, suitable for oral or parenteral administration, contain the above novel pyrrole derivatives or their physiologically tolerable acid addition or quaternary ammonium salts as the active ingredient. The compositions have pharmacological properties and are not very toxic.
Patent GB-1017815-A (GB)
Title: Dehalogenation of organic compounds
Inventor: KINGDOM RICHARD JEKYLL
IPC: C07C17/23
Filed: 1962-05-14
Abstract: Highly fluorinated aromatic or olefinic organic compounds are obtained by contacting a fluorine-containing highly halogenated alicyclic compound containing at least one six-membered ring or a highly halogenated saturated aliphatic compound in the vapour phase with at least one metal oxide at above 200 DEG  C.  In specific embodiments, a highly fluorinated alicyclic compound, such as perfluorocyclohexane, perfluorocyclohexene, perfluorodecalin, perfluoromethylcyclohexane, perfluoro - dimethylcyclohexanes and perfluoroethylcyclohexane, is contacted with an oxide having a reducing lower valency state, such as magnetite, ferric oxide and chromic oxide; perfluorostyrene is obtained from perfluoroethylbenzene at 400-550 DEG  C. over magnetite and/or ferric oxide; perchlorofluoro-cyclic alkanes or alkenes are dehalogenated to fluoroaromatic compounds over a variable valency metal oxide, such as an oxide of Cu, Sn, V, Mo, W, Fe or Cr; fluorinated aromatic compounds are obtained from a highly or perfluorinated cyclohexadiene over a metal oxide less basic than CaO, e.g. an oxide of Sn, V, Mo, Fe, Cr, Ti, Mn, Co, Pb, Ce or Sb, especially magnetite and/or ferric oxide:  hydrogen-containing compounds may also lose HF; and fluoro-olefines are obtained from a chlorofluorocarbon or chlorofluorohydrocarbon, e.g. CFCl2.-CF2Cl or CF2Cl.CHFCl, over magnetite. Examples are given, and regeneration of the oxides is described. Oxides used in examples are magnetite, Mn3O4, SnO, V2O3, Fe2O3, MoO3, MgO, Co3O4, Cr2O3, ZnO and WO3.
Patent GB-282302-A (GB)
Title: Improved process of purifying the reagents used in preparing per salts and other per compounds
IPC: C01B15/00
Filed: 1927-07-12
Abstract: 282,302. Henkel et Cie., Ges. Dec. 24, 1926, [Convention date]. Hydrogen, peroxide; sulphuric acid; sodium hydrate and carbonate; potassium sulphate.- Solutions of the reagents used in preparing persalts and percompounds are purified by treatment with silica gel to separate heavy metals which cause catalytic decomposition of the final products. The solutions mav be boiled with silica gel and afterwards crystallized. The treatment may be applied to borax, caustic soda and calcined soda used in preparing perborates or percarbonates; potassium sulphate and sodium phosphate used in preparing persulphate or perphosphate, and sulphuric acid, water &c., used in preparing hydrogen peroxide.
Patent GB-333991-A (GB)
Title: Improvements in and relating to the manufacture of acetic anhydride
IPC: C07C51/56
Filed: 1929-06-17
Abstract: 333,991. Groves, W. W., (Badger & Sons, Co., E. B.). June 17, 1929. Stationary mixers with rotary stirrers. - For the production of acetic anhydride from anhydrous sodium acetate, sulphur chloride or sulphuryl chloride, and chlorine, the reagents are fed to a batch reaction chamber surrounded by a cooling jacket, and the temperature of the cooling-liquid such as brine is controlled so as to check undue rise of the reaction temperature, by means of cooling-tubes in the jacket, connected with a refrigerating circuit containing for instance liquid ammonia. The reaction chamber described is formed in two sections 11, 13 connected by a ring 25 and having charging openings 37, 39, 41 and 45, and a discharge 57. A central shaft 19 carrying stirrers 23 is supported in the end-plates and in a central bearing carried on arms 27 in the ring 25. The shaft is driven by a motor 21 through reducing gear 22. The reaction chamber is provided with a jacket 61 in which are arranged cooling-coils 65, 67, 69, 71 connected by a pipe 73 with a compressor 75 which delivers the refrigerant to a condenser 79 from which it passes to a receiver 81 and pipe 83 having expansion valves 85, one for each of the cooling-coils. A thermometer 33 is arranged in the reaction chamber within the ring 25 and thermometers 87 are arranged to indicate the temperature within the jacket. In carrying out the process, the sodium acetate is introduced through the feed opening 45 and is mixed with a little acetic anhydride in the chamber. The other reagents are added from time to time, the valves 85 being operated to check undue rise of temperature after each addition. The temperature should be between -5‹ and 10‹ C, preferably a little below 10‹ C.
Patent GB-1000691-A (GB)
Title: Improvements in or relating to flexible pivotal joints
IPC: F16C11/04
Filed: 1962-05-15
Abstract: 1,000,691. Hinges and pivots. PNEUMATIQUES CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBERCOLOMBES. May 15, 1962 [May 15, 1961; April 10, 1962], No. 18673/62. Heading E2F A flexible pivotal joint comprises an inner rigid casing 2 provided with a flange 11, 12 at each end, an intermediate elastic sleeve 3 located between the flanges and in contact with an outer casing 1, an anti-friction sheath 20 between the elastic sleeve and the inner casing, and two annular discs 21 located between the ends of the elastic sleeve and the flanges 11, 12 to keep the sleeve in axial compression. The sheath may be made in two parts, as shown, separated axially by a gap 22, the discs 21 being formed as flanges on the sheath, or a single sheath slightly shorter than the sleeve 3 may be provided, the discs in this case being made separately. Small anti-friction rings 13, 14 may be inserted between the discs and the flanges to facilitate running-in of the joint, the rings and discs being made preferably of polytetrafluoroethylene. Lips 24 on the sleeve 3 and inwardly bent edges on the flanges 11, 12 may be provided as dust traps.
Patent GB-596133-A (GB)
Title: Machine and method for assembling commutators
IPC: H01R43/06
Filed: 1945-07-20
Abstract: 596,133. Making commutators. WILLIAMS, W. P. (Dayton Precision Manufacturing Co.). July 20, 1945, No. 18675. [Class 83 (ii)] A machine for assembling commutator segments into a circular formation comprises a pair of opposed heads adapted to grip the side faces of segments inserted between them, means for rotating the heads step-bystep and means synchronized with the rotation for radially inserting the segments between the heads. The invention is described as applied to a machine for assembling copper and mica commutator segments. Copper segments are fed by a horizontal conveyer 3 to a position in front of a vertical shoot 5 containing mica segments. As each copper segment arrives, a mica segment is laid on it by a push rod 4 and the two segments are then advanced together and pushed between rubber pads or gripper discs 29, 30 carried by horizontal shafts 27, 28. The machine is driven from a motor 6 and friction wheel 7 adapted to drive a wheel 11 on a shaft 10 through a coupling friction wheel 12 movable into and out of engagement with the wheels 7 and 11. An eccentric stud 9a on the shaft 10 operates the pusher 4 and another eccentric operates a lever 22 carrying a pawl 23 which drives a ratchet-wheel 21 on the gripper disc shaft 27, The wheel 12 is carried by an arm 13 journalled on the shaft 10 and may be moved into driving position by a foot pedal 15 coupled to the arm 13. When the machine is idle, the gripper discs may occupy the position shown in Fig. 1, but before the assembly of the segments begins; they are moved together so that the ends of the shafts 27 and 28 abut against levers 27b, 28b movable in slots 27a and 28a in bearing sleeves 25 and 26 respectively, Shaft 28 is slotted to carry a tongue 35 which projects to engage a slot in the shaft 27 and which carries a platform 36 on which the first segments are supported during the assembly operation. At the sides of the pusher bar are two fingers 37 which serve to depress the rubber portions of the discs before the entry of the segments. Adapted to be positioned between the gripper discs to receive the assembled segments is a hand tool comprising a semicircular body member 40 with integral handle portion 41 and a rod 42 which may be moved inwardly by a lever 44 so as to press on and close a resilient split assembly ring 45 carried within the body 40. The segments are introduced into the ring through the gap and when the assembly has been completed, lever 44 is operated to close the ring to compress and grip the elements which may thus be removed for the next operation. The machine is automatically stopped after the completion of the assembly by a pin 24 on the ratchet-wheel 21 which engages and depresses a finger 17 which rocks the arm 13 and disengages the friction coupling wheel 12. The segments after being removed from the machine are placed on a hub 52 having a flange 53 covered with a ring of insulation 54 and a matching ring flange 55 is thrust over the other end of the hub to form the complete assembly.
Patent GB-796695-A (GB)
Title: Supporting pallets for use in association with cardboard boxes
IPC: B65D19/20
Filed: 1955-06-28
Abstract: 796,695. Box pallets for handling loads. SOC. ANON. DE LA PAPETERIE DE CHATEAUNEUF-LA-FORET. June 28, 1955 [July 30, 1954], No. 18684/55. Class 78 (4). The upper platform 7 of a pallet has two hinged extensions 8, 9 adapted to pass into the open bottom of a cardboard box so that they can be folded down to overlie part of the bottom and secure the pallet below the box. The pallet illustrated comprises platforms 7, 5 of corrugated cardboard spaced by legs 6 formed by rolling corrugated cardboard into a solid cylinder. The extensions 8, 9 are passed between the walls of a box and bottom flaps 2 hinged to the end walls. The extensions 8, 9 are then folded down and bottom flaps 3, 4 hinged to the side walls are folded over them. The extensions 8, 9 are preferably pliable to facilitatet heir introduction into the box and they are preferably of such length that they do not overlap. Specification 638,033 is referred to.
Patent GB-662836-A (GB)
Title: Automatic pilot control
IPC: G05D1/04
Filed: 1946-06-21
Abstract: 662,836. Automatic control systems for aircraft. BENDIX AVIATION CORPORATION. June 21, 1946 [July 13, 1945], No. 18761/46. Class 38 (iv). A control panel for an aircraft automatic pilot comprises a pitch-trim knob and a turn knob, coaxial with a bank-trim knob and adapted to actuate simultaneously the bank, rate and pitch adjusting devices. The invention is described as applied to the aircraft automatic pilot disclosed in Specification 662,831 and is an improvement upon that disclosed in Specification 662,832. As shown, Fig. 2, the variable inductive devices 225, 227, 229 which respectively transmit the bank, rate-of-turn and pitch signals to the ailerons, rudder and elevators from the rate-of-turn and artificial horizon gyros, Fig. 1 (not shown), are manually set to' adjust the signals applied to the control surfaces servo system, which are thereby operated to effect the required change in altitude of the craft. To place the craft in an automatic turn, the knob 256 is rotated and a simultaneous adjustment of 225, 227, 229 is effected, through mechanical linkage, together with disconnection of the earth inductor compass from the rudder during the turn, by the switch 290. An initial adjustment of the linkage may be effected, by the cam system 291, to prevent a " noseheavy " condition during turn and an allowance for craft speed may be made through the differential 273. Upon attaining the required course, the knob 256 is centred and the master compass assumes control. Pitch-trim and bank-trim are effected by knobs 231, 253 geared respectively to devices 229, 225, knob 253 being concentric with 256.