baber/WOPTO huggingface dataset:
Patent GB-1522917-A (GB)
Title: Doppler radar device
IPC: G01S13/50
Filed: 1977-03-14
Abstract: 1522917 Doppler radar PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 March 1977 10614/77 Heading H4D The Doppler radar device described in Specification 1,279,583 is modified to detect the sense of Doppler signals received by feeding two diode detecting devices situated in the transmission line DS connected to the detector port DP. Use is made of the phenomenon that the leakage signal from the energy transmitted from the input port IP to the output aerial port OP of the circulator produces a spatial phase distribution transversely across the detector port DP, the transverse dimensions of which are chosen to correspond to up to 180 degrees. The received signal from aerial port OP feeds the detector port DP with energy of uniform phase and diodes D receive the mixed signals including phase shifted components from points P, spaced transversely at optimum matching positions across the detector stripline DS. The mixed down signals are processed in conventional phase sensitive Doppler circuits.
Patent GB-438693-A (GB)
Title: Improvements in and relating to electric switches or circuit breakers
IPC: H01H9/34
Filed: 1935-04-05
Abstract: 438,693. Automatic circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 5, 1935, No. 10620. Convention date, April 5, 1934. [Class 38 (v)] Arc-rupturing.-In an automatic circuitbreaker, a pair of magnetizable members 252, 254 are placed one behind the other in a passageway formed in the housing adjacent the contacts 12, 1401, the arc formed on opening the circuit being drawn towards and subdivided by the members, and extinguished by the gases formed by the arc and flowing along the passageway. The movable contact 12, preferably formed of an arc-resisting metal such as nickel or molybdenum, is mounted on a resilient member 14 secured to a U-shaped member 20 pivoted at 77. The member 14 is connected by a flexible conductor 16 to a bimetallic strip 24 carried by an adjustable slide 22. The switch-operating mechanism comprises a link 47, which at one end carries rollers 43 engaging slots 38 in the member 20, and at the other end is pivotally supported by a tripping member 56 pivoted at 80 and carrying a catch 62, normally engaging a latching member 28 on the bimetallic strip. The parts are mounted in a U-shaped frame 72 supporting the operating handle 84, which is connected to the link 47 by a spring 100 which, when the circuit is opened, whether manually by moving the handle, or automatically by release of the tripping member 56 by the bimetallic strip, passes over a dead-centre and gives a quick break. The whole of the mechanism is mounted in a housing 110 of insulating material which may be enclosed in an outer metallic casing 225. An opening in the side of the housing 110 leads to a passageway formed between the bottom of the housing 110 and a closure member 300 secured to the housing. The magnetizable members 252, 254 are mounted in the inner part of the passageway, and the outer portion 322 carries a wire screen 321. The fixed contact 1401, which may be made of anti-welding material such as silver and lead oxide, is connected to a terminal 155 by a conductor 144, which is bent as shown in Fig. 2, and acts as a blow-out coil to direct the arc against the magnetizable plate 252. In a modification, the base of the housing 110 is formed with baffles extending into the passageway, to provide a sinuous path for the arc gases. In another modification, the closure member 300 is provided with cooling fins extending into the passageway.
Patent GB-812841-A (GB)
Title: A process for the production of unsaturated lactones and carboxylic acids
Inventor: EITER KARL
IPC: C07D309/32
Filed: 1957-04-01
Abstract: In a process for the production of g -d -unsaturated carboxylic acids or d -lactones of d -hydroxy - a ,b  - unsaturated carboxylic acids a g -halogenated b -substituted crotonic acid ester is reacted with a ketone, preferably a b -ketone, under the conditions of the Reformatsky reaction.  The unsaturated acids may be obtained from the lactones by reaction with nucleophilic reagents.  g -Halogenated b -substituted crotonic acid esters specified include g -bromo - b  - methoxy -, ethoxy -, carbethoxy-, phenoxy- and phenyl methoxy-crotonic acid esters, g -bromo-b -methyl crotonic acid ethyl ester, g -bromo-b -acetoxy-crotonic acid methyl ester and g -bromo-b -benzoxy crotonic acid esters.  Ketonic starting materials specified include a - and b - and pseudo - ionones and acetophenone.  The starting materials may be dissolved in an inert solvent, e.g. tetrahydrofurane, diethyl ether, benzene or toluene, and reacted in the presence of zinc.  The g ,d -unsaturated acids may be obtained by reacting the mixture at temperatures above 70 DEG  C. or the lactones may be isolated when the reaction is carried out at a temperature within the range 40-70 DEG  C. for a short time.  Nucleophilic reagents mentioned include metal alcoholates and alkali metal amides. Examples relate to the production of g -(b -ionylidene) b -ethoxy-crotonic acid (1); the d -lactone of 1-(21,61,6-trimethylcyclohexene - (11) yl) 3 - methyl - 3 - hydroxy-5 - ethoxy - heptadiene - (1,5) carboxylic acid-(7) and 1 - (21,61,61 - trimethyl cyclohexene-(11) yl) 3 - methyl - 5 - ethoxyheptatriene-(1,3,5) carboxylic acid (7), two isomers of the latter being separated by fractional crystallization and the higher melting isomer being converted to the lower melting isomer by treating a benzene solution with bromine in daylight (2), the d -lactone of 2-hydroxy-2-phenyl-4-ethoxyhexene - (4) carboxylic acid - (6) and 2-phenyl - 4 - ethoxy - hexadiene - (2,4) carboxylic acid - (6), (3); and the d  - lactone of 2 - hydroxy - 2 - phenyl - 4 - methyl - hexene(4) - carboxylic acid - (6) and 2 - phenyl - 4-methyl - hexadiene - (2,4) carboxylic acid (6), (4).
Patent GB-228756-A (GB)
Title: Improvements relating to safety valves
IPC: F16K17/10
Filed: 1924-05-03
Abstract: 228,756. Babcock & Wilcox, Ltd., and Kemnal, Sir J. May 3, 1924. Safety valves. - A safety valve of the type normally controlled by an auxiliary valve but also adapted to function independently of the auxiliary valve has the main valve provided with an antiscoring device. The main valve 1, which is loaded by a spring acting directly or through toggle mechanism, has a cylindrical inner member 20 adapted to work in conjunction with a ported flange 21 and abuts against a spindle 2a formed on the actuating piston 2. The auxiliary valve, which is loaded by a spring acting through toggle mechanism, comprises a valve with a face 13 adapted to admit inlet pressure to the back of the piston through passages 9 and 11, and with a cylindrical part 10 adapted to close the passage 9, 12 leading to the atmosphere.
Patent GB-542963-A (GB)
Title: Improvements in and relating to gyroscopes
IPC: G01C19/44
Filed: 1940-06-27
Abstract: 542,963. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. June 27, 1940, No. 10981. Convention date, Aug. 31, 1939. [Class 97 (iii)] Gyroscopes are restored to the desired attitude by the provision of a rotatable out-of-balance mass having torque applying means which becomes effective upon tilt of the gyroscopic axis. Figs. 1 and 2 show a gyroscope rotor driven by air jets with a disc 13 mounted for rotation on a spindle 15 carried by the casing 1. The disc 13 has a weighted portion 17 balanced by the downward reaction of air escaping upwardly through jet 18. A second jet 20, inclined like jet 18 to cause rotation of the disc by the escaping air, is provided as shown and applies a torque to the gyro axis. As long as the axis is not tilted this torque is non-effective but when tilting occurs the disc no longer rotates at a uniform speed but decelerates as the mass 17 passes from its lowest position to its highest position. The jet 20 therefore exerts its greatest torque during the time the mass is passing through its highest position. In another form a spool 21 is mounted on airborne bearings and is provided with arms 27, 29, 30, arm 30 carrying a weight 31 which is counterbalanced by air reaction of a jet 32. As the gyro tilts the arms move so that weighted arm 30 moves to the lowest position enabling jet 33 to exert its torque in the proper position. Arm 27 counterbalances arm 29.
Patent GB-1144331-A (GB)
Title: Improvements in and relating to drills
IPC: E21B10/44
Filed: 1966-03-14
Abstract: 1,144,331. Drills. HAWERA HARTMETALL-WERKZEUGFABRIK RAVENSBERG G.m.b.H. 14 March, 1966 [13 March, 1965], No. 11001/66. Heading B3C. A drill for rotary, or axial and rotary, drilling rock, comprises a spiral undercut collecting trough 6, for the dust, the outer diameter of the drill forming an acute angle with the adjacent dust carrying portion 6a of the trough. Preferably the trough has a pitch angle of less than 30 degrees.
Patent GB-113229-A (GB)
Title: Improvements in or relating to Indicating or Recording Apparatus applicable to Billiard Tables.
Inventor: BROWNE JAMES
IPC: A63D15/20
Filed: 1917-08-01
Abstract: 113,229. Browne, J. Aug. 1, 1917. Time checks and time registers.-Relates to indicating or recording apparatus for billiard tables in which an obstructing arm is placed over part of the table to prevent play, and is moved out of the way when the table is to be used. According to the present invention, the spring-controlled arm 3, which, when removed from the table, is locked in a spring clip 12 on the side of the table, operates the spring starting-lever 17 of a clock 18 provided with recording-mechanism 19 and simultaneously completes an electrical circuit containing an indicator board 23 which shows the number &c. of the table in use. The arm 3, which is mounted in a bracket 2 on the outside of the table, carries a strip 20 of brass &c. to bridge the terminals 21. The clip 12 has outwardly-curved ends, and is mounted in a bracket 11 extending from the bottom or side of the table.
Patent GB-1277563-A (GB)
Title: Ornamental miniature barrel or cask
Inventor: STEVENSON KENNETH
IPC: B65D23/08
Filed: 1970-03-09
Abstract: 1277563 Portable containers TOMATIN DISTILLERS CO Ltd 31 July 1970 [9 March 1970] 11146/70 Headings B8D and B8T A miniature plastics barrel 11 adapted to hold a bottle 33 comprises a blow-moulded body formed with stave-simulating lines 12 and a lower hoop simulating groove 12 and provided with a channel 20 above a shoulder 18, and a plastics cap 26, Fig. 3 (not shown), having an internal circumferential rim protrusion 27 to make a snap-fastening engagement in the channel and to space the edge of the cap from the shoulder to simulate an upper hoop 13. The bottle is retained in the barrel by the rim 32 of a central opening in the cap. The body base is recessed and thickened at 16 to support the bottle.
Patent GB-107458-A (GB)
Title: Self-acting Safety Brake for Motor-cars and other Vehicles.
Inventor: PESSELL ROBERT CHARLES
IPC: B60T7/14
Filed: 1916-08-08
Abstract: 107,458. Pessell, R. C., and Beattie, W. H. T. Aug. 8, 1916. Stop-gear operated by driver leaving his seat.- In safety arrangements in, which the brakes are automatically applied on the driver leaving his seat, the seat a is pivoted or slides in guides against the pressure of springs b and may be provided with a counterweight d. The brakes are applied by a cable &c. e.
Patent GB-1427566-A (GB)
Title: Press for the production of boards
IPC: B30B5/06
Filed: 1973-03-07
Abstract: 1427566 Double belt presses B GRETEN [trading as BISONWERKE BAHRE & GRETEN GmbH & Co] 7 March 1973 [8 March 1972 24 April 1972] 11221/73 Heading B5A [Also in Division F4] In an endless belt press for forming fibreboard and chipboard, belts 3, 4 of interconnected plates are heated directly by burners 29 and indirectly by the waste gases therefrom. Endless steel feed bands 7, 8 may be heated either by the waste gases (see Figs. 8-10) or by electrically heated plates 24, 25. The burners 29 may be gas fuelled and may lie in four rows, each row lying transverse the belts 3, 4 in casings 22, 22<SP>1</SP>, 23, 23<SP>1</SP>. The burner jets of a burner may comprise slits formed by wire (43) coiled around a rectangular bar (42, Fig. 6) positioned in an ear 40 of a chamber 41 housing the gas/air feed pipe (39). Each chamber 41 is surrounded by an air cooling jacket 45. Each casing 22-23<SP>1</SP> may be subdivided by a partition (26, Fig. 2), an endless belt 3 or 4 or an endless band 7 or 8. Each casing 22-23<SP>1</SP> is provided with an
Patent GB-527721-A (GB)
Title: Improvements in and relating to escalators
IPC: B66B29/04
Filed: 1939-04-13
Abstract: 527,721. Escalators. HALL, Ltd., J. & E., and PERNET, F. H. April 13, 1939, No. 11229. [Class 78 (i)] The aperture through which the hand-rail passes into the baluster casing is protected by movable parts which fall away on the application of undue pressure such as may. result from the introduction of a foreign body between the hand-rail and the surface of the aperture. The movement of the parts may be adapted to cut out the driving motor of the escalator. The aperture is protected by a plate a, Fig. 1, which is hinged to a movable part c of the casing and has a cut-away portion a<SP>1</SP> to permit the passage of the hand-rail. Spring ball plungers retain the plates in the protective position. A slotted link f is pivoted to the plate a and is engaged by a bolt g fixed to the casing. When the plates fall away, the operating element, h of a switch controlling the circuit of the driving gear of the escalator is released, and the escalator stopped. The plates a, c may be replaced by a single plate or by a plurality of small plates that line the edge of the opening through which the hand-rail passes.
Patent GB-292530-A (GB)
Title: Improvements in regulators for controlling the speed of electric motors
IPC: H02P7/282
Filed: 1928-04-16
Abstract: 292,530. Electrical Research Products, Inc., (Assignees of Stoller , H. M., and Morton, E. R.). June 21, 1927, [Convention date]. Maintaining constant speed. - A DO motor 10 is kept at constant speed, by deriving an AC from a mechanically coupled induction alternator 16, and applying this AC to a Wheatstone bridge 21 having arms of equal ohmic resistance, one arm being formed as a tuned circuit 22, 23 of a natural frequency slightly lower than that generated by the alternator 16 when the motor is running at the correct speed. If the motor speed decreases, the tuned circuit approaches resonance and the bridge approaches balance, thereby decreasing the potentials applied to the grids of amplifying valves 25, 27 and rectifying valve 29, the output of which is in circuit with a field winding 14. Anode currents are obtained through a low pass filter circuit from a high voltage armature winding on the motor. Specification 292,528 is referred to.
Patent GB-801671-A (GB)
Title: Improvements in the manufacture of hydrogen
Filed: 1956-04-13
Abstract: <PICT:0801671/III/1> In the thermal decomposition of methane by passage over hot coke with production of hydrogen and deposition of carbon on the coke, methane-containing gas, e.g. natural gas, is passed first through a fluidized bed of non-activated coke so as to incompletely decompose the methane and then through a fluidized bed of steam-activated coke having a surface area of 30-1500 sq. m/gm., at a lower temperature, so as to complete the decomposition.  The temperature in the first stage may be 1500-2100 DEG  F., preferably 1800 DEG  F., and in the second stage 1500-1900 DEG  F., preferably 1700 DEG  F.  The pressure in the first and second stages may be 0-100 p.s.i.g., preferably 0-30 p.s.i.g.  The contact time in the first stage may be 2-15 seconds, preferably 3-10 seconds, and in the second stage 1-5 seconds, preferably 3 seconds.  The superficial gas velocity in the first stage may be 0.5-3 feet/second.  The gaseous hydrocarbon may be preheated to 1200 DEG  F.  Coke may be used having the following particle size distribution: 5-20 per cent, 5-20 microns; 60-70 per cent, 40-80 microns; 5-25 per cent, 80-200 microns; balance, 20-40 microns.  As shown, coke may be circulated between a first-stage reactor 1 and a burner 3 wherein deposited carbon is burnt off via lines 5 and 10, into which are injected natural gas and air respectively.  Additional fuel and air may be injected into the lower portion of burner 3 via line 21.  The partially decomposed natural gas passes via line 7 to a second-stage reactor 2, between which and a reactivator 4 is circulated steam-activated coke via lines 22 and 13.  Coke in reactivator 4 is fluidized by means of combustion gas from burner 3 passing via line 12, and steam which is injected into lines 12 and 13 via heating coil 11 and line 14.  Additional steam injected into a line 17 through line 18 may convey coke from burner 3 to reactivator 4.  The product passes through line 9.
Patent GB-252145-A (GB)
Title: Improvements relating to means for paralleling alternating current machines or circuits
IPC: H02J3/42
Filed: 1926-04-29
Abstract: 252,145. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). May 16 1925, [Convention date]. Transformers.-A three-core transformer 18 has its primaries supplied by voltage transformers 16, 17 in such a manner that when the systems 11, 12 are out of phase the primaries aid each other and no flux passes through the secondary 19, whereas when the systems are in phase the primaries oppose each other, and the secondary 19 has induced therein a voltage proportional to the sum of the system voltages.
Patent GB-530618-A (GB)
Title: Improvements in and relating to photographic elements
IPC: G03C1/835
Filed: 1939-04-14
Abstract: 530,618. Photographic films. KODAK, Ltd. (Eastman Kodak Co.). April 14, 1939, No. 11307. Addition to 520,157. [Class 98 (ii)] [Also in Group IV] A film is provided with an anti-halation layer comprising a polyvinyl mixed ester of phthalic acid and another acid, for example, polyvinyl acetate phthalate, polyvinyl acetate propionate phthalate, or polyvinyl acetate butyrate phthalate, and a dye such as Spirit Nigrosine N.B. Alternatively, the layer of polyvinyl mixed ester may be applied first and then dyed by application of a methanol solution of Spirit Jet containing a wetting agent. The support may be cellulose nitrate, cellulose organic ester, synthetic resin or glass, and the antihalation layer may be applied to a multilayer film. The polyvinyl mixed ester may be mixed with other colloids such as cellulose acetate phthalate. Polyvinyl acetate phthalate is prepared by heating a solution of polyvinyl acetate containing also water and phthelic anhydride under pressure in an autoclave. Specification 529,035 is referred to.
Patent GB-402324-A (GB)
Title: Process of and apparatus for the production of coarse crystals by evaporation in vacuo and stagewise cooling
IPC: B01D9/00
Filed: 1933-04-18
Abstract: <PICT:0402324/III/1> In crystallizing liquids by evaporative cooling in stages under increasing vacuum in presence of culture crystals, the solution being admitted in each stage at such a depth below the surface of the liquid that evaporation first begins in the cooling vessel itself, the difference between the admission and outlet temperature of the liquid in each stage is increased, to a maximum of about double, above the temperature range of metastable saturation, e.g. from between 3 to 6 DEG C.  The liquid is admitted through a pipe 3 into the top compartment 4 of a three stage cooling vessel and passes thence through a pipe 5 into the middle compartment 6 finally passing through a pipe 7 into the bottom compartment 8.  Stirrers 10, 11, 12 are provided in each compartment and the vapors evolved are led off through outlets 13, 14, 15, to condensers in which the liquid to be treated is preheated.
Patent GB-1087026-A (GB)
Title: Improvements in or relating to the continous casting of metals and metal alloys
IPC: B22D11/128
Filed: 1966-03-15
Abstract: 1,087,026. Continuous casting-machines. S. ARENA. March 15, 1966 [March 19, 1965], No. 11355/66. Heading B3F. A process for continuously casting metal and metal alloys comprises withdrawing metal from a body of molten metal through a continuous casting mould 4, cooling the withdrawn metal within the mould 4 to effect solidification thereof as it is being withdrawn, reversing the direction of movement of the cooled casting 5 so as to reintroduce it at least partially into the mould 4 and then withdrawing the solidified casting 5 further by movement in the original direction. The process can be applied to the " consumable electrode " continuous casting process in which a thermal discontinuity is produced by circular displacement within the mould. Relative movement between the casting 5 and mould 4 may be achieved by movement of the mould 4.
Patent GB-543254-A (GB)
Title: Improvements in or relating to the manufacture of resins
IPC: C08G63/78
Filed: 1940-07-08
Abstract: 543,254. Recovering solvents used in condensing resins. DU PONT DE NEMOURS & CO., E. I. July 8, 1940, No. 11364. Convention date, July 6, 1939. [Class 32] [Also in Group IV] In the production of alkyd or urea-aldehyde resins modified with drying oils, alcohols &c. by the solution method, i.e. by heating the reacting materials with a non-reactive volatile solvent, e.g. toluol, white spirit, solvent naphtha, &c., removing the water of reaction and the solvent by distillation and condensation, separating the water, and returning the solvent to the reaction zone, the heating of the materials is carried out by withdrawing the liquid from the reaction zone and heating it exteriorly thereof and then re-cycling the liquid to the reaction zone by injecting it into the vapour space thereof so as to provide a large surface of contact between the vapour and the injected liquid. The apparatus comprises an evaporator 1 from which the materials are withdrawn by a pump 2 and re-cycled through a heater 3 and a spraying nozzle 4. Vapours formed are taken off through a scrubber 6 to a condenser 7, gas cyclone separator 8 and separator 9 where water is rejected through line 90 while the solvent is returned through a meter 10 to the scrubber 6 and thence to the evaporator 1. The scrubber 6, Fig. 2, comprises a bubble 60; 64, 65 with solvent entrance and exit pipes 11, 61, 62. Specification 483,399, [Group IV], is referred to. The Specification as open to inspection under Sect. 91, stated that the process was applicable for de-hydrating castor oil, for making varnishes by the solution method, for the production of plasticizers, e.g. castor oil phthalate. and for the esterification processes in which a liquid water carrier is used. This subject-matter does not appear in the Specification as accepted.
Patent GB-439779-A (GB)
Title: Improvements in or relating to the induction systems of internal combustion engines
IPC: F02M33/04
Filed: 1935-04-12
Abstract: 439,779. Recovering condensed fuel FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, HALL, G. W., Woodlands, Iver Heath, Buckinghamshire, and GREAVES. F., 210, Central Avenue, Hayes, Middlesex. April 12, 1935, No. 11400. [Class 7 (ii)] [See also Group XXVI] Fuel which condenses in the intake b or the volute a of a supercharger, is drawn into the mixture stream by pipes c which lead to the atmosphere and have orifices d for the condensed fuel. The pipes have a common atmospheric connection through a restriction f, and the suction on the condensed fuel is increased by Venturi passages adjacent the orifices d. The pipes drain off fuel deposited when the engine stops running.
Patent GB-360343-A (GB)
Title: Improvements in and relating to the transmission of electrical energy between alternating and direct current networks
IPC: H02M7/51
Filed: 1931-04-17
Abstract: 360,343. Converting. AKT. - GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. April 17, 1931, No. 11407. Convention date, April 28, 1930. [Class 38 (ii).] In means for transmitting energy from a D.C. network 2 to an A.C. network 1 through gridcontrolled metallic vapour apparatus 4 in association with a transformer 3, ohmic resistances 9 are connected across the grid-cathode path to reduce reactance of the grid circuit and thus suppress oscillations therein. The grids are energized from the A.C. circuit through a phase-displacer 5, transformer 6, and series resistances 7, 8.