baber/WOPTO huggingface dataset:
Patent GB-1035204-A (GB)
Title: Improvements in or relating to the absorption of alkaline vapours
Inventor: BROWNLIE ISAAC ALLAN
IPC: C01B25/28
Filed: 1962-04-26
Abstract: In a process where ammonium phosphate is formed by the absorption of ammonia from an aqueous vapour stream thereof in an aqueous solution of phosphoric acid, the vapour stream having a higher partial water vapour pressure than the aqueous acid solution, air is mixed with the vapour stream so that the resulting partial water vapour pressure is substantially not greater than that of the aqueous acid solution after absorption of ammonia from said stream and whilst the latter is in contact with the aqueous acid solution.  The aqueous acid solution may be partially neutralized.  The aqueous ammoniacal vapour stream may be derived from the production of an ammonium phosphate of N: P ratio >1.  The added air is preferably dry but may contain ammonia in an amount less than that present in the vapour stream.  In an example an aqueous ammoniacal vapour effluent at 100 DEG  C. has its partial water vapour pressure reduced from 71 cm. Hg. to less than 30 cm. Hg. by the addition of dry air at 100 DEG  C.  The diluted vapour effluent is absorbed in phosphoric acid (51.5% P2O5, s.g.=1.63, N: P=0.1) at 15 DEG  C. and 0.5 cm. Hg, to form an ammoniated phosphoric acid solution (N: P=0.4 at 100 DEG  C. and 15 cm. Hg.), which is passed to a neutralizer 2 (see Figure, not shown) wherein phosphoric acid, water and ammonia are reacted to form an ammonium phosphate slurry (N: P=1.3).
Patent GB-121981-A (GB)
Title: Improvements in Friction Clutches and Friction Brakes.
IPC: F16D43/18
Filed: 1917-11-03
Abstract: 121,981. Lancashire Dynamo & Motor Co., and Whitmore, H. B. Nov. 3, 1917. Actuated or applied by speed regulators; band; electric and magnetic.-Expanding band clutches and brakes are operated by weights bearing against the joints of toggle levers pivoted to the band ends, or the bands may be continuous and be operated by a toggle like action produced by weights secured to inwardly bent sections of the bands. The bands C. Fig. 1, are arranged between a flange B on a driving boss b<1> and the outer driven drum A and are operated centrifugally by weights E connected to the band-ends by toggle-links D. Studs F may be adjusted in the weights E and locked by bolts f<1> and are adjustably secured by nuts f<3>, f<4> in a spring ring G<1> which tends to disengage the clutch. The disengaging-ring G<1> may he replaced by a rigid ring between which and the studs F are arranged adjustable springs. The centrifugal effect may be increased by the use of weights M secured to the bands. The bands are driven by surfaces b<5>, b<7> on the flange B, which surfaces may be inclined so as to force the band ends against the drum. One band only and a single set of operating-gear may be provided. In the form shown in Fig. 10, the band C is continuous but is bent around weights E<1>, which are connected to the spring G<1>, and, if desired, to additional weights and are covered with asbestos fabric &c. to form part of the clutching-surface. The driving-flange B is shaped to fit the band. Under centrifugal action the bent portions of the band are straightened out and act on the remainder of the bands with a boggle-like action. Instead of a spring, manual means, such as a toggle device, may be used to restrain the 'centrifugal action of the weights, or, as shown in Fig. 15, a stationary electro-magnetic coil Q may be excited to act on armatures c<6> carried by the bands C and retain the bands normally against the flange B and a ring b<10> secured thereto
Patent GB-257871-A (GB)
Title: Improvements in fuses for projectiles
IPC: F42C15/26
Filed: 1925-03-02
Abstract: 257,871. Pearson, C. H. March 2, 1925. Projectile fuzes.-A centrifugal plate 22, Figs. 1, 2, and 3, is pivoted directly on the fuze body 10 between the primer 16 and the firing pin 41, Fig. 4, of a clockwork time fuze. The plate 22 is released on discharge by the set back of an inertia bolt 85, Figs. 2 and 3, and is then swung out by centrifugal force against the action of a spring 23. This leaves the firing pin free to strike the primer when the lever 68 of the trigger 44 is released at the appointed time by a notch in the disc 62 of the clockwork.
Patent GB-263044-A (GB)
Title: Improvements in cappels and the like
IPC: F16G11/04
Filed: 1926-06-26
Abstract: 263,044. Baker, A. A. F. June 26, 1926. Capping.-A device for capping the end of a rope comprises a split tapered wedge 3, 4 at one end of which is provided a tapered recess 6 to receive a white metal block 7 formed on the end of the rope 5. The wedge is clamped upon the rope and block by means of a casing 8 and rings 9.
Patent GB-650190-A (GB)
Title: Improvements in or relating to speed governors
IPC: G05D13/00
Filed: 1948-06-15
Abstract: 650,190. Speed governors. AKTIEBOLAGET ATLAS DIESEL. June 15, 1948, No. 16099. Convention date, June 18, 1947. [Class 57] A speed governor for machines having a rotor 4 driven by a working fluid flowing through a passage 8 controlled by a rotating throttle 18 driven mechanically by the rotor is characterized in that the throttle operates without frictional contact with the walls of the passage or other stationary part and is moved by means responsive to the speed of the machine against the direction of flow through, the passage to reduce the effective area thereof upon an increase of speed and vice versa. The governor is disposed within a casing 6 of the machine and has pivoted weights 14, carried by a body part 5 secured to the rotor, and having fingers 16 engaging a flange 17 of the throttle. The latter is loaded by a spring 20 enclosed in a sleeve 19 carried by the body part. The Specification as open to inspection under Sect. 91 comprises also an embodiment in which the sleeve is dispensed with and the leading spring, which is adjustable, is disposed within the rotor. This subjectmatter does not appear in the Specification as accepted.
Patent GB-741661-A (GB)
Title: Improvements in or relating to arsenical compositions
IPC: A61K31/285
Filed: 1952-06-26
Abstract: 1:2 - Bis (41 - arsono - phenylamino) - ethane As(O3H2).C6H4.NH.CH2.CH2. NH.C6H4As(O3H2) may be prepared by refluxing ethylene bromide with a solution of p-arsanilic acid in caustic soda.  After completion of reaction, unchanged arsanilic acid is retained in solution by addition of conc. hydrochloric acid, the reaction product filtered off and purified by solution in caustic soda followed by acidification.ALSO:A pharmaceutical preparation comprises 1 : 2-bis (41-arsono-phenylamino)-ethane As(O3H2). C6H4. NH.CH2. CH2. NH. C6H4 As(O3H2) or a salt thereof together with a solid carrier or a sterile liquid.  The preparation may be used in treating parasitic diseases, particular amoebiasis, and may be made up in the form of tablets, powders, (mixed with excipients such as starch, lactose, stearic acid, magnesium stearate, gums) capsules (the term " solid carrier " includes a capsule or resorbable material) suppositories or for parenteral injection (e.g. in sterile water).  Example I describes a tablet composition comprising the sodium salt of 1 : 2-bis (41-arsonophenylamino)-ethane, starch, macro-porous silica and magnesium stearate.
Patent GB-814052-A (GB)
Title: Pole system for a low powered alternating current motor
IPC: H02K17/08
Filed: 1957-05-22
Abstract: 814,052. Induction motors. ALLMANNA SVENSKA ELEKTRISKA A.B. May 22, 1957 [May 29, 1956], No. 16216/57. Class 35. The pole shoes of a split-phase motor taper in the axial direction of the motor adjacent poleshoes having reverse taper so that the poleshoes occupy almost the whole rotor periphery and the material is magnetically oriented in the direction of the flux lines. The pole-shoes are shaped as in Fig. 3 and the four pole-pieces are on a yoke ring 4, coils on the two vertical polepieces being connected through a condenser to the single-phase supply. The pole-pieces may be of flakes compressed with a binder in a mould.
Patent GB-119871-A (GB)
Title: Improvements in Lens Shutters for Photographic Cameras.
Inventor: HANSEN JENS PETER
IPC: G03B9/48
Filed: 1918-10-05
Abstract: 119,871. Hansen, J. P. Oct. 5, 1917. [Convention date]. Shutters.-Single or double flap shutters for cameras comprise flaps or plates having inwardly or outwardly projecting flanges co-operating with edges or recesses in the shutter frame. In the form shown in Figs. 1 and 2, the frame 1 has a projection 2 co-operating with the flaps 3 which are carried by rotating pins 8, 9 and are formed with flanges 4, 5. The flaps are fitted with felt lists 6, 7 and the flanges of one flap overlap the flanges of the other flap when closed. The pins 8, 9 are connected by a crossed cord 10 and the shutter is closed by a helical spring 11. The flanges fit closely to the co-operating parts so that an air cushion is formed on closing and so as to form a light-tight closure if the flaps are so adjusted as to stop at a short distance from the part 2 of the frame. In a modification, the flap of a single-flap shutter is formed with inwardly projecting flanges on three sides or, as shown in Fig. 8, with outwardly projecting flanges 25 cooperating with recesses 26 in the frame. Shutteroperating mechanism is shown in detail but not described.
Patent GB-403886-A (GB)
Title: Improvements in gear grinding machines
IPC: B23F19/00
Filed: 1933-06-06
Abstract: 403,886. Gear grinding machines. MAAG-ZAHNRAEDER UND MASCHINEN AKT.-GES., and ERNST, D., 219, Hardstrasse, Zurich, Switzerland. June 6, 1933, No. 16255. [Class 83 (iii).] In a gear-grinding machine, such as that described in Specification 15617/13, [Class 83 (iii), Metals, Cutting], wherein a gear blank 1 is rolled past a pair of grinding discs 6 and is controlled by means of tensioned flexible bands 4 passing round a cylindrical segment 3 the effective profile of the segment is modified from the theoretical circular profile in order to impart to the profile of the gear teeth, slight deviations from the true involute form. These deviations may compensate for elastic distortion of the teeth under full load or for small pitch errors. In one form, Fig. 2, the rolling segment has a profile 71 differing from the circular profile 7. A similar result may be attained by the use of a circular segment in conjunction with flexible bands of varying thickness. In some cases a non-circular segment may be used with bands 4 of varying thickness.
Patent GB-1353484-A (GB)
Title: Process for production of unsaturated nitriles
IPC: B01J27/057
Filed: 1971-05-21
Abstract: 1353484 Acrylonitrile and methacrylonitrile NITTO CHEMICAL INDUSTRY CO Ltd 21 May 1971 [23 May 1970 7 Aug 1970 (2) 28 Sept 1970 (2)] 16340/71 Heading C2C [Also in Division B1] Acrylonitrile or methacrylonitrile are produced by reacting propylene or isobutylene, respectively, with ammonia and oxygen in the vapour phase in contact with a catalyst comprising (i) an oxide of one or more of Fe, Mn, Co, Ni, Cd or Pb, (ii) an oxide of tungsten and, optionally, (iii) an oxide of P, B, S, Se or Te, the ratio of tungsten to element(s)- (i) being from 1 : 10 to 90 : 10 and the ratio of element(s) (ii) to element(s) (i) being from 0 to 15 : 10. The process is carried out at 370 to 550 C., with a molar ratio of oxygen to olefin of 0À5 : 1 to 6 : 1 and of ammonia to olefin of 0À7 : 1 to 3 : 1.
Patent GB-1309661-A (GB)
Title: Circuit arrangements for television picture display apparatus
IPC: H03K4/64
Filed: 1970-04-07
Abstract: 1309661 Converting PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 April 1970 [25 April 1969 4 Nov 1969] 16342/70 Heading H2F [Also in Divisions H3 and H4] In TV apparatus, power supply and drive to the line output stage is obtained from a pulseduration modulated switched mode supply operating at line frequency. As shown, a voltage Vi is derived by rectifying the mains at 1 and is arranged to drive a pulsating current into the primary 8 of a transformer 9 under control of a switching transistor 2 pulsed at line frequency. A rectifying diode 7 becomes conductive during the inter-pulse interval. The resulting current charges capacitor 10 so as to provide the supply voltage for the line deflection stage 17. The output from secondary winding 14 is also used as base drive to the line output transistor 16 which supplies deflection coils 18 and EHT winding 20. The collector/base diode of transistor 16 may form the efficiency diode of the line output stage. Components 21 ... 25 are used to expedite the turn-off of transistor 16 at the end of each sweep as described in Specification 1,302,754. The supply to the line output stage is compared with a reference at 12 and used to control a pulse modulator at 5 so as to stabilize the supply voltage Vo. A parabolic field voltage 28 may be introduced for the correction of pincushion distortion. The beam current may be arranged to flow through a voltage-dependent resistor having a quadratic characteristic so that variation of voltage Vo may be proportional to the root of the variation in EHT voltage so that the line deflection remains constant. S-correction may be obtained by reducing the size of capacitor 10. The CRT heater may be supplied from transformer 9.
Patent GB-988146-A (GB)
Title: Apparatus for automatic adjusting and compensating the secondary voltage of a transformer
IPC: G05F1/147
Filed: 1961-05-05
Abstract: 988,146. Transformer arrangements. CHIRANA PRAHA NARODNI PODNIK. May 5, 1961 [May 6, 1960], No. 16377/61. Heading H2H. In a system for automatically maintaining a predetermined output voltage from a mains transformer, the number of primary turns is adjusted under the control of means which include a potentiometer supplied with a stabilized direct voltage and having a slider mechanically connected to the transformer tap adjuster, and a second potentiometer, having hyperbolic characteristics or scale and supplied with a direct voltage proportional to the mains voltage, the output voltages from the two potentiometers being maintained equal by automatic adjustment of the first potentiometer. In Fig. 3 a tapping J3 on the primary winding of a mains transformer TR supplying, for example, X-ray apparatus, is adjusted by a reversible electric motor M under the control of a polarized relay PR energized from opposed potentiometers P1, P2. A direct voltage proportional to the mains voltage is applied to potentiometer P1 so that variations are effective to operate motor M which rebalances potentiometer P2 and simultaneously adjusts tapping J3 so that the voltage of the secondary (not shown) of transformer TR is maintained constant at a value determined by the setting of potentiometer P1. The arrangement is such that sensitivity of control is constant over the range of adjustment of potentiometer P1 which may be hyperbolic, have a hyperbolic scale, or be a combination of potentiometers producing the same effect.
Patent GB-570803-A (GB)
Title: Improvements in machines for mounting filaments of incandescent electric lamps and the like
IPC: H01K3/10
Filed: 1942-11-20
Abstract: 570,803. Incandescent lamp making. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 20, 1942, No. 16415. Convention date Nov. 26, 1941. [Class 39 (ii)] A machine for attaching filaments to mounts and extracting defective products has an intermittently moving carrier as in Specification 390,870, with heads each adapted to hold a stem with two metal leads, and a number of stations into which each head is successively indexed. At station A jaws 33, 34 (Fig. 3) close upon the leads so that fingers 31, 32 gather up and position them while blades 35, 45 trim their ends and a roller 46 is moved across them to make a transverse V-grove in each (Fig. 5a). At station B filament material held between blocks 59, 60 (Fig. 4), and projecting through a hole in a guide 61 is gripped and drawn forward by jaws 62, 63 carried by a slide 64 on a carriage 56. The carriage is then advanced to the mount so that a spring pressed slide 105 presses the leads against an abutment 107 and the filament material is placed in the grooves in the leads. Jaws 101, 102 then close and cause a tool 104 (Fig. 5b) to enter the grooves and press the material of the leads over the filament to secure it, while two disc cutters 122, 123 with abutting faces are rotated in opposite directions to cut off the filament. The jaws 62, 63 may be prevented from feeding filament material by a solenoid operated member controlled by a manual switch, or by a movable finger at the preceding station which may operate in respect of a defective stem. At station C a finger 163 (Fig. 10) is pressed between the converging leads to put tension on the joints and render a partly defective construction wholly so. At station D one of the holders 187 on a conveyor chain is advanced into engagement with the stem and at the same time spring contacts 179, 180 (Figs. 1 and 11) are engaged with the leads and a switch 196 closes automatically the circuit of an indicating lamp and of solenoids 197, 198. These circuits pass through a contact 191 of a relay which is energized by current through the filament and therefore opened only if the filament connections are intact and of a predetermined low resistance. In other cases the lamp lights, the solenoid 197 actuates the release of the jaw holding the mount in the head and the solenoid 198 causes the conveyor chain to be moved forward on its next advance carrying the defective mount.
Patent GB-1603538-A (GB)
Title: Pipe bending
Inventor: KOSER ROLF
IPC: B21D9/12
Filed: 1978-04-26
Abstract: In the method, use is made of tube bends which are produced from a relatively narrow straight tube using a correspondingly shaped mandrel. The tangential cylindrical leg extensions are obtained by restoring the shape of the end of the tube bend by a procedure in which forming tools that act from outside on the end of the tube bend and/or mandrels, plungers or rollers to be inserted into the end of the tube bend straighten the end of the tube bend. For this purpose, a die plate (6) is clamped onto the table of an eccentric press and cooperates with a ram (7) moved up and down by the eccentric. The end (11) of the tube bend is inserted between the die plate (6) and the ram (7) and rotated. Alternatively, use can be made of an apparatus in which an end (18) of a tube bend is inserted between two die jaws (14, 15) which open and close briefly, while a mandrel provided with pressure rollers (16, 17) is introduced into the end of the tube. <IMAGE>
Patent GB-1464494-A (GB)
Title: Carnivore distemper vaccine and method of producing same
IPC: A61K39/175
Filed: 1975-04-21
Abstract: 1464494 Carnivore distemper virus vaccine INST POLIOMIELITAI VIRUSNYKH ENTSEFALITOV AKAD MEDITSINSKIKH NAUK SSSR 21 April 1975 [25 April 1974 16 Dec 1974] 16439/75 Heading A5B Live carnivore distemper vaccine comprises carnivore distemper virus which has been adapted to and cultivated on green monkey kidney cells. The culture may be a primary culture, a subculture or a culture cell line. It may be stored in liquid nitrogen until required for use. The virus may be adapted by 8 to 10 passages on the cell culture. Nutrient may be added to the cultivation culture during cultivation. Some of the virus containing liquid may be removed before all the cells have been destroyed, the remainder being removed when all the cells have been destroyed. The virus containing liquid may be lyophilized in the presence of sorbite and gelatose to give the vaccine.
Patent GB-141391-A (GB)
Title: Improvements in or relating to ejectors
IPC: F04F5/46
Filed: 1918-10-10
Abstract: 141,391. Contraflo Condenser & Kinetic Air Pump Co., and Higgins, C. F. Oct. 10, 1918. Ejector condensers; regulating action.-Comprises means for stabilizing an ejector forming part of an ejector system of steam-condensing plant. The stabilizing action is produced by the introduction of a by-pass circuit for taking fluid, already within the ejector system, from a suitable evacuate a steam condenser or the like. The first part of the combining-tube of this ejector. The ing-tube of the ejector to be stabilized, and conducting it to the suction part or the convergent point behind the divergent portion of the combininvention is illustrated in its application to a plant in which two steam ejectors 2, 3 in series, with intermediate jet condensation, are used to ejector 2 may withdraw varying quantities of vapour from the condenser, and hence the ejector 3 is stabilized by the provision of the by-pass pipe 6 fitted with the valve 7. This valve is controlled automatically by the pressure in the condensing-chamber through the agency of the pipe 9. When the volume of fluid drawn by the ejector 2 falls to such an extent that the uncondensed residue is insufficient to promote satisfactory working of the ejector 3, the fall of pressure in the condensing-chamber allows the valve 7 to open. A proportion of the fluid then passes round the pipe 6 and by escaping condensation increases the residual fluid to be dealt with by the ejector 3.
Patent GB-403416-A (GB)
Title: Apparatus for playing a game
IPC: A63F3/06
Filed: 1932-06-11
Abstract: 403,416. Games of chance. GRAY, A. J., 18, Woodland Road, Northfield, Birmingham. June 11, 1932, No. 16538. [Class 132 (ii).] The invention comprises a sheet 1, preferably transparent or translucent, divided by printing or marking into compartments 2, beneath which numbers 4 in figures or words are indented or embossed on a sheet 3, for example of cardboard, so as to be invisible normally, but capable of being rendered visible through the sheet 1 by pencilling or rubbing thereover. Alternatively the outline of the compartments 2 may be marked on the sheet 3, and, according to the Provisional Specification, the sheet 1 may be dispensed with. In playing a game simulating golf, two players alternately rub over any compartment they may select and the number indicated is marked on a scoring part 5 of the sheet 1 or 3. The sheet may be folded, about the line 6 and the outer surface thereof, Fig. 1, used for advertising matter.
Patent GB-1304035-A (GB)
IPC: H03K3/286
Filed: 1970-04-08
Abstract: 1304035 Semi-conductor pulse circuits SIE. MENS AG 8 April 1970 [9 April 1969] 16544/70 Heading H3T Two emitter followers T1, T2 produce a transmitted voltage at A between their emitters and have respective base-biasing potential dividers R3, R4, R5 and R6, R7, R8 in each of which a resistance is arranged to be shorted with a switch ES1 or ES2 one or other being operated in response to an input telegraph signal. The switches may be transistors. Crosscoupling between each collector resistor R1, R2 and the opposite base reduces the output impedance of the circuit. The resistors R4, R7 may alternatively have the switches across them (Fig. 2, not shown); and R5, R8 returned to OV by a common series connected pair of diodes (D1, D2) for temperature compensation. The bases may be coupled by capacitors to OV, and inductors included in the dividers, for reducing interference and high frequency distortions. One switch may be shorted out or permanently closed to permit response (via the other switch) to single current input telegraph signals, instead of the double current signals needed to operate the two-switch circuit.