baber/WOPTO huggingface dataset:
Patent GB-825498-A (GB)
Title: An improved fencing dropper or batten and a tool for use in fastening wires thereto
IPC: E04H17/10
Filed: 1957-09-23
Abstract: 825,498. Fencing. LAWSON, R.- L. Sept. 23, 1957 [Oct. 26, 1956], No. 29781 /57. Class 45. In fencing having battens or droppers comprising a metal strip A with a series of lugs B and adjacent apertures C, a wire W is attached to a batten or dropper by bending a lug about the wire and through the adjacent aperture. A tool for bending the lugs comprises levers L, M pivoted together, and formed with jaws L<SP>1</SP> M<SP>1</SP> and a claw m. Each lug is initially bent about the wire by the claw which is pivoted at m<SP>111</SP> about the straight edge of the adjacent aperture. The jaws complete the bending operation, the jaw M<SP>1</SP> forcing the end of the lug through the aperture and the jaw L<SP>1</SP> bending the end of the lug about the straight edge of the aperture. Lugs may be unfastened by means of the end I of the lever L. The batten or dropper has flanges A<SP>1</SP> and the web may be formed with raised edges or projections which engage the wire.
Patent GB-874440-A (GB)
Title: Improvements in or relating to the preparation of petroleum coke
IPC: C10B55/00
Filed: 1959-09-01
Abstract: Petroleum coke suitable for conversion into graphite for use in nuclear reactors is made by coking a residue obtained from a light petroleum distillate by subjecting the light petroleum distillate to a thermal cracking treatment at a temperature between 500 DEG  and 600 DEG C. and a pressure of at least 50 kg./cm.2 and separating the cracked product by distillation into a normally gaseous fraction, a fraction which is recycled to be recracked having a final boiling point and preferably a boiling range corresponding to the feed, and a residue to be coked which has an initial boiling point not lower than the final boiling point of the feed minus 10 DEG C.  The residue from the distillation of the cracked product may be separated into two or more fractions and may be subjected to a second thermal cracking before the coking proper. The coking of the residue may be carried out by passing the residue through a pipe still, heated to a temperature between 450 DEG  and 525 DEG C., preferably between 475 DEG  and 510 DEG C. and discharging the residue into a coking chamber where the petroleum coke is formed, the residence time in the pipe still being such that no coke is deposited therein and the pressure at the outlet of the pipe still is between 7 and 35 atm. gauge, preferably 10-25 atm. gauge.  Alternatively the residue may be contacted with petroleum coke particles for between 5 and 60 seconds at a temperature between 450 DEG  and 650 DEG C.  The coke thus produced is then preferably calcined at between 1100 DEG  and 1400 DEG C. before being mixed with a binder, shaped and graphitized.  The raw shaped pieces are first heated to between 300 DEG  and 500 DEG C. to remove volatile matter and then finally at between 2500 DEG  and 3000 DEG C. for 2 to 5 days. Specification 862,221 is referred to.
Patent GB-533492-A (GB)
Title: Improvements relating to screening lights
IPC: F21V11/00
Filed: 1939-11-13
Abstract: 533,492. Lamps for black-out conditions. BAILEY. S. H. Nov. 13, 1939, No. 29920. [Class 75 (ii)] A piece of glass inserted through a slot in an opaque shade covering a light source enables a certain amount of edge lighting to be produced.
Patent GB-670061-A (GB)
Title: Improvements in or relating to loud-speaking telephone equipment
Inventor: ROSEBY PHILIP NORTON
IPC: H04M9/08
Filed: 1949-11-22
Abstract: 670,061. Two-way transmission. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 9, 1950 [Nov. 22, 1949], No. 29927/49. Class 40 (iv). In a loud-speaker communication system including an amplifier for each direction of transmission, a signal in either direction increases the gain of the required amplifier and renders the other ineffective by varying the anode voltage applied to at least one of the valves in each amplifier. Speech currents from a microphone M, Fig. 1, are applied to an amplifier V1, V2 via a transformer TRA and after amplification are fed to line L via the hybrid arrangement TRB and also to a further amplifier V6, Fig. 2. The output from the valve V6 is rectified in a circuit including a tetrode V8 strapped as a diode and a non- linear resistor NLA which serves to give a threshold effect and is used to charge a condenser QS for controlling the valves V10 and V11 which are normally biased by a potential at S. The valves V10 and V3 are fed with H.T. over a common resistor YYD so that a signal at valve V6, in increasing the anode current of valve V10, reduces the anode voltage on valve V3, and at the same time the decrease in anode current of valve V11 increases the anode voltage of valve V1. Signals incoming over line L have the converse effect on the anode supplies to the two valves V1 and V3, the condenser QS being charged in a reverse direction by the signal tapped off at LA. Specification 628,008 is referred to.
Patent GB-276295-A (GB)
Title: Method of oxidising ammonia by means of oxygen
IPC: C01B21/26
Filed: 1926-11-26
Abstract: 276,295. Liljenroth, F. G. Aug. 19, 1926, [Convention date]. Nitrogen oxides, catalytic production of by combustion of ammonia.-In a continuous process for the catalytic combustion of ammoniaoxygen mixtures, the combustion products are passed to a condensing system in which they are only partly condensed, the uncondensed portion being used to dilute the mixture to be subjected to combustion. The uncondensed portion consists of a mixture of oxygen and nitric oxide in proportions depending on the extent of the condensation and the composition of the ammonia. oxygen mixture, which latter, however, generally contains two volumes of oxygen to each volume of ammonia. The Specification as open to inspection under Sect. 91 (3) (a) states that the diluting gas may be oxygen or nitric oxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-604240-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J21/08
Filed: 1945-11-09
Abstract: 604,240. Thermionic valves. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Nov. 9, 1945, No. 29963. Convention date Nov. 20, 1944. [Class 39 (i)] An electron discharge device comprises a bird-cage cathode 17 with a concentric grid structure comprising wires 19 pivotally connected by bars 24 to fixing plates 20, 21 and by bars 25 to a movable plate 26 so that the grid wires can be moved towards or away from the cathode in constant parallelism to the axis thereof. A coaxial anode 18 surrounds both grid and cathode and the movable plate 26 is operated by a stem 27 sealed through a bellows seal 28 and moved by a screw cap 31 overlying a nut 29 soldered to a sleeve 30 round the bellows.
Patent GB-154798-A (GB)
Title: Improvements in or relating to the method of manufacturing hair pins
IPC: B21G7/06
Filed: 1919-12-02
Abstract: 154,798. Myers, G. L. Dec. 2, 1919. Pins, dress.-A hair-pin of the type in which portions of the two prongs consist of oppositelycoiled helices is made by bending a piece of wire into a blank with straight sides, as shown in Fig. 1, coiling the sides round a bar 2, until the pin takes the form shown in Fig. 2, and then pulling the sides in the direction of the arrows until they are drawn out into the form shown in Fig. 3, which represents the complete hair-pin.
Patent GB-1261307-A (GB)
Title: Apparatus for the electrostatic coating of objects with atomised solids particles
IPC: B05B5/03
Filed: 1970-06-22
Abstract: 1,261,307. Spray producers. GEMA. AG. APPARATEBAU. 22 June, 1970 [25 June, 1969; 5 June, 1970], No. 30137/70. Heading B2F.  In an electrostatic spray gun for spraying powders the gun includes within it a tube of electrically insulating material (e.g. plastics material) 7 within which is a plurality of electrodes 1, 1a, 2, 2a &c connected to different potentials for the production within the tube of corona discharges. These electrodes are, in the embodiment shown, disposed in two rows, 1 to 6 and 1a to 6a, and in a helix around the tube surface, supplied with voltage from taps on either a voltage multiplier cascade (Fig. 3, not shown) or a voltage divider circuit (Fig. 4, not shown) the capacitors and diodes or the resistors of the circuit used being positioned outside the tube 7 and encapsulated in the plastics material of the body 20 of the gun (Fig. 2, not shown). The supply to the voltage multiplier cascade is from a transformer 11 at the rear of the gun, this in turn supplied from a voltage convertor in the handle of the gun, the electrical supply to the gun being low voltage and d.c., via cable 34, the trigger 18 and switch 19 controlling this supply. The powder is supplied to the gun at inlet 33 entrained in a gas, and expelled from orifice 21 and atomised by collision with the baffle 23, which baffle is movable with rod 24 through cord 27 and rod 28. An annular auxiliary electrode 22 may be positioned at the outlet of the gun, connected to the final stage of the voltage multiplier (or divider), it being embedded completely in the atomiser part 35 of the gun if the powder is rather flammable, partially exposed to the powder stream if the powder is less flammable or dispensed with entirely if the powder is very inflammable. A further embodiment (Fig: 6, not shown) has the electrodes arranged in an annular array of 4 spaced at 90‹ from each other and positioned closer to the orifice 21 than the diameter of the orifice, the opposite electrodes being at the same potential and each of the two pairs connected to one side of a voltage amplifier cascade consisting of two columns of capacitors interlinked with diodes (Fig. 9, not shown) positioned around the insulated tube through which the material is fed. The supply to the multiplier is as in the previous embodiment, the supply of coating material here being through the handle of the gun. Another method here of supplying the voltage is to have two of the electrodes connected to the output of a high voltage generator and the other two earthed via a divertor resistor (Fig. 10, not shown). A yet further embodiment (Fig. 5) has a reservoir of powder mounted on the gun.
Patent GB-365148-A (GB)
Title: Improvements in or relating to dewatering solid materials
IPC: B01D33/00
Filed: 1930-10-08
Abstract: 365,148. Filters. WILLIAMS, P. T. and MINERALS SEPARATION, Ltd., 62, London Wall, London. Oct. 8, 1930, No. 30187. [Class 46.] In a process of vacuum filtration for liquids in mineral-dressing plants, including coal concentrates and ore pulp, the filtering medium used has a large percentage of open area and a vacuum is applied such that the average amount of water passed through the medium is greater than twenty cubic feet per hour per square foot of filter surface, the filtering medium being moved through the liquid fast enough to carry away the larger solid particles as rapidly as they are introduced to the filter. A filter medium having an open area of 40 per cent arranged on a drum having a peripheral speed of twenty feet per minute is mentioned as suitable. The apertures in the filtering medium may be of the same order of size as the maximum particles to be separated. Figs. 1 and 2 show a rotary drum filter for use in the process. The drum comprises a casting 13 which supports a filter medium 14 of wire cloth, the space beneath the cloth being divided into numerous longitudinal cells, for example thirty-two, by ribs 15. The space within the drum is occupied by a stationary valve 24 divided by a central partition 27 and having suction connections 25, 26. The casting is shaped so that each cell slopes to a central pocket 18, from which the liquid is discharged through a passage 19, inclined contrary to the direction of rotation. The passages 19 of adjacent cells are arranged to communicate alternately with the two compartments of the valve, the valve face having openings 21, 22, so that the cells dipping into the material under treatment in a tank 28 and the cells rising therefrom are subjected to suction. The passages 19, as the cells rotate, also pass over a port 33 in a chest 34, a blast of air or steam from which aids the removal of the cake by a doctor 30. The leading edges of the ports at the ends of the passages 19 are made to conform in shape with the co-operating edges of the ports 21, 22, 33, so that the suction and blast start sharply.
Patent GB-1486760-A (GB)
Title: Reduced manganese ore
IPC: C01G45/02
Filed: 1976-07-20
Abstract: 1486760 Manganous oxide DIAMOND SHAMROCK CORP 20 July 1976 [21 July 1975] 30208/76 Heading C1A MnO is obtained by passing a non-oxidizing gas, preferably containing CO 2  and/or H 2 O, at 700-1000 C into and through a bed of solid carbonaceous fuel and manganese oxide ore which has been at least partially reduced to MnO, and directing the resulting hot reducing gas mixture into a contiguous layer of unreduced manganese ore and solid carbonaceous fuel. The initial gas may be obtained by combustion of a suitable fuel, e.g. natural gas, propane, butane, oil, coal or coke, and may be cooled to suitable temperature by injection of water or steam. Suitable solid fuels are coal, charcoal, flue dust, carbon, coke and wood chips. The process may be operated by making periodical additions of fresh solid fuel-unreduced ore layers at the top of the pile.
Patent GB-496426-A (GB)
Title: Improvements relating to knuckle couplers for railway and like vehicles
IPC: B61G3/06
Filed: 1937-11-04
Abstract: 496,426. Vehicle couplings. AMERICAN STEEL FOUNDRIES. Nov. 4, 1937, No. 30244. Convention date, June 10. [Class 103 (v)] In an automatic knuckle coupler for railway vehicles of the kind in which a lock lifter 20, Fig. 4, is actuated by means of a pivoted lever or rotor 14 controlled by a transverse operating- rod 38, Fig. 1, coacting elements are provided on the lifter and rotor to prevent creep of the lock 32. In the construction shown, the lifter 20 is provided at its upper end with a jaw 28 forming a seat for a projecting trunnion 30 on the lock 32, while at its lower end it is formed with an elongated opening 22, through which and through aligned apertures 18 in the rotor passes a cotter pin 24, and also with an anticreep shoulder 56 to co-operate with a bridge portion 19 on the rotor 14. In the locked position of the coupling, Fig. 4, the shoulder 56 prevents the lifter from rising, but when the rotor 14 is swung in an anticlockwise direction by the operating-rod 38, the pin 24 moves to the upper end of the slot 22 and allows the bridge 19 to clear the shoulder 56 during the subsequent lifting action. At its inner end the operating-rod 38 has a hooked portion 36 engaging the rotor 14, and its only other point of support is a vehicle bracket 46 near its outer end, which has a cranked portion 52, the weight of which tends to maintain the rod and rotor in the locking position.
Patent GB-1198170-A (GB)
Title: Improvements in or relating to Structures suitable as Electrodes for Electrostatic Precipitators
IPC: B03C3/45
Filed: 1968-06-25
Abstract: 1,198,170. Electrostatic precipitators. KOPPERS CO. Inc. 25 June, 1968 [26 June, 1967], No. 30323/68. Heading B2J. An electrode structure fort an electrostatic precipitator comprises a number of plates 12 with interlocking means 22 at each end which are held in locking engagement by the engagement of a male detent 30 in one plate with a female detent 32 in the other plate. As shown each interlocking means includes one male detent and one female detent.
Patent GB-959331-A (GB)
Title: Method and composition for stripping dyestuffs from cellulosic fibers
IPC: D06P5/13
Filed: 1961-08-23
Abstract: Vat, sulphur and direct dyestuffs are stripped from cellulosic textile fibres, e.g. rawstock, yarns and fabrics comprising cotton or viscose or cuprammonium rayon alone or blended with other fabrics, by treating the dyed fibres with a bath which comprises an aqueous alkaline solution containing a water-soluble hydrosulphite and a polymer of an N-vinylmethyl oxazolidinane. Copolymers comprising an N-vinylmethyl oxazolidinane and a minor proportion of a water-soluble copolymerizable monomer, e.g. sodium styrene sulphanate, maleic acid salts, vinyl acetate, vinyl pyridine and acrylic acid, maybe used 1-20% by weight of the N-vinylmethyl oxazolidinane polymer based on the weight of the cellulosic textile fibres being treated is preferably used, the amount used preferably being at least substantially equal to the weight of the dyestuff being stripped from the fibres.  The stripping bath may also contain ethyleneglycol methyl or ethyl ether.  The fibres may subsequently be bleached with an aqueous solution of sodium hypochlorite.
Patent GB-984449-A (GB)
Title: Improvements in or relating to carriers for rimmed cylindrical cans
Inventor: ROBERTSON ALEXANDER HEBENTON
IPC: B65D71/48
Filed: 1961-08-23
Abstract: 984,449. Can carriers. PRINT PROCESSES SALES Ltd. Aug. 9, 1962 [Aug. 23, 1961], No. 30403/61. Heading A4G. [Also in Division B8] A carrier for one or more rimmed cylindrical cans is made from a cardboard blank having eight symmetrical parallel folds forming a central panel A<SP>1</SP> containing an elongated central slot C and on each side three portions A<SP>2</SP>, A<SP>3</SP>, A<SP>4</SP> between the central panel and an outermost flap A<SP>5</SP> forming a hand grip, in which the portions A<SP>2</SP> are folded downwards, portions A<SP>3</SP> are folded back inside the portions A<SP>2</SP> while the portions A<SP>4</SP> are folded to lie flat against the underside of the panel A<SP>1</SP> with the hand grip portions folded upwardly through the slot C, the folds to the portions A<SP>4</SP> being interrupted by cuts D and D<SP>1</SP> whereby tabs D<SP>2</SP> incline the portions A<SP>3</SP> when folded inside portions A<SP>2</SP> as shown in Fig. 2, the tabs also leaving slots at the top of the portions A<SP>3</SP> which, when the carrier is pushed over the top of the cans, engage the upper rims of the cans and enable them to be carried. The portions are prevented from being unfolded by turning in end flaps A<SP>6</SP>, A<SP>8</SP> and tuck ins A<SP>7</SP>. Slots may be formed through both A<SP>2</SP> and A<SP>3</SP>. Specification 984,450 is referred to.
Patent GB-1215676-A (GB)
Title: Fungicidal compositions
Inventor: OHMORI KAORU
IPC: A01N43/42
Filed: 1969-06-16
Abstract: 1,215,676. Fungicides containing organometallic compounds. NIPPON KAYAKU K.K. 16 June, 1969 [21 June, 1968], No. 30444/69. Heading A5E. A fungicidal composition for agricultural or horticultural use comprises a metal complex of 8-hydroxyquinoline and a metal salt of α- amino-γ-ethylthio-butyric acid. The metals specified are Cu, Mn, Zn, Co, Ni, Fe and Pb.
Patent GB-1273786-A (GB)
Title: Improvements in or relating to optical apparatus comprising lasers
Inventor: SMITH PETER WILLIAM
IPC: H01S3/098
Filed: 1969-06-17
Abstract: 1,273,786. Lasers. WESTERN ELECTRIC CO. Inc. 17 June, 1969 [18 June, 1968], No. 30511/69. Heading H1C. A mode locked laser, Fig. 2, producing a train of pulses is identical in construction to that shown in Fig. 1 of Specification 1,254,506, but the radius of concave mirror 21 is so chosen that mode-locked oscillation of both longitudinal and transverse modes is obtained with the longitudinal mode separation frequency #f 2  an integral multiple M of the transverse mode separation frequency #f T . Both resonator mirrors may alternatively be concave, Fig. 1 (not shown), the respective radii R 1 , R 2  satisfying the relationship where g 1  = 1-L/R 1  and g 2  = 1-L/R 2 . The equivalent of a concave mirror is obtained by the combination of a plane mirror 41 and at least a biconvex lens 61, Fig. 3.
Patent GB-1472741-A (GB)
Title: Manufacture of calcium hypochlorite
IPC: C01B11/06
Filed: 1974-07-10
Abstract: 1472741 Calcium hypochlorite ICI AUSTRALIA Ltd 10 July 1974 [13 July 1973] 30522/74 Heading C1A The known process of preparing a slurry of calcium hypochlorite by reaction of chlorine with a slurry of calcium hydroxide and sodium hydroxide is improved by continuously pumping into a first stirred reactor an aqueous slurry of calcium hydroxide and sodium hydroxide optionally partially chlorinated and simultaneously passing chlorine gas into the reaction mixture at such a rate that the redox potential is in the range 650-850 mV w.r.t. a Pt/Ag electrode, and passing contents of the first reactor into a second stirred reactor and simultaneously passing chlorine gas into the second reactor at such a rate that the redox potential is in the range 650-950 mV and continuously removing the contents of the second reactor as product, the temperatures of the contents of the first and second reactors are independently maintained in the range 15-35‹ C. Cooling is preferably carried out by evaporation under reduced pressure.
Patent GB-828875-A (GB)
Title: Electric toggle switch construction
IPC: H01H23/16
Filed: 1957-09-30
Abstract: 828,875. Snap-action switches. ALLIED CONTROL CO. Inc. Sept. 30, 1957, No. 30569/57. Class 38 (5). A toggle switch having a casing 1 with a contactcarrying base 2 fastened thereto in a waterproof manner, comprises a contact lever 17 operated by a hollow handle 11 containing a spring-loaded rod 31 co-operating with another rod 30. A cap 33 is screwed into the handle 11 and serves to adjust the compression of the spring. The cap 33 should form a moisture-proof seal but a gasket may be used.
Patent GB-1079561-A (GB)
Title: Novel heterocycle polymers
IPC: C08G73/10
Filed: 1964-08-04
Abstract: The invention comprises linear heterocyclic polymers containing at least two different multivalent 5 or 6-membered heterocyclic units occurring in regularly ordered sequence in the chain, and having interposed between each of the hererocyclic units a multivalent hydrocarbo unit.  The polymers are obtained by reacting a monomer containing at least one heterocyclic ring and at least two reactive functional groups with another monomer containing at least two reactive functional groups and may or may not contain heterocyclic rings, additional heterocyclic rings being formed during the polymerization. In examples polymers are obtained by reacting pyromellitic dianhydride with 2, 5-bis(p-aminophenyl)-1,3,4-oxadiazole, with 2,5 - bis(m - aminophenyl) - 1,3,4 - oxadiazole, with 3,5 - bis(m - aminophenyl) - 4-phenyl - 1,2,4 - triazole, with m - bis(4 - p-aminophenylthiazole - 2 - yl - benzene), by reacting 2,5 - bis(3,4 - diaminophenyl) - 1,3,4-oxadiazole with diphenyl isophthalate and with sebacic acid, by reacting 2,5-bis(m-carbohydrazinophenyl)-1,3,4-oxadiazole with N,N1-diphenyl - isophthalimidoyl chloride, by reacting N,N1 - bis(m - carbohydrazinophenyl) hydrazide with N,N1-diphenylisophthalimidoyl chloride, and by reacting 3,31-diaminobenzidine with 2,5 - bis(m - carboxyphenyl) - 1,3,4 - oxadiazole. Other starting materials and polymers are mentioned.
Patent GB-876234-A (GB)
Title: A fully-automatic transmission system
IPC: F16H61/02
Filed: 1957-10-02
Abstract: 876,234. Variable-speed gear; positive clutches. BENHAM, D. R. Sept. 30, 1958 [Oct. 2, 1957; Feb. 6, 1958], Nos. 30786/57 and 3831/58. Class 80 (2). A change speed gear comprises sun gears G, H loosely mounted on a driving shaft A and meshing planets I, J fast on a shaft B journalled in a carrier D restrained from reverse rotation by a pawl Y and ratchet X, a planet K also fast on the shaft B meshing a sun L coupled to a driven casing C by a shock-absorbing coupling SAS. A bar M is mounted in a square section hole in the driving shaft A and is urged outwardly by centrifugal force against the action of a spring N, spring-urged balls M1, M2 engaging first a dog F1 driving the sun G to give low gear, then engaging a dog E1 to give second gear and finally engaging the dog E 1 and a dog F2 to lock the trains to give direct drive. At idling speeds of the shaft A the bar M is retracted by its spring to give neutral. A pawl P and ratchet R prevent foward rotation of the planets to provide engine braking.