baber/WOPTO huggingface dataset:
Patent GB-430832-A (GB)
Title: Improvements relating to the manufacture of manganese dioxide
IPC: C01G45/02
Filed: 1934-01-12
Abstract: 430,832. Manganese dioxide. ELLIS, L. S. E., 70, Chancery Lane, London.-(Soc. des Usines Chimiques Rhone-Poulenc; 21, Rue Jean-Goujon, Paris) Jan. 12, 1934, No. 1222. [Class 1 (iii)] An oxide of manganese containing a large proportion of manganese dioxide is obtained by oxidizing manganous hydroxide in an ammoniacal medium by means of a gas containing free oxygen and under such a pressure that the partial pressure of the oxygen is greater than that of oxygen in atmospheric air. Oxygen at normal or increased pressure or air under pressure may for instance be used. The initial material may be obtained by reacting a manganese salt such as the sulphate with excess of ammonia, in which case the ammonium salt formed may remain during the oxidation. An oxidation catalyst such as copper sulphate, a bichromate, or hydroquinone may also be present. By treatment of the oxidation product with a dilute acid, any lower oxide of manganese present may be removed. Examples are given.
Patent GB-657150-A (GB)
Title: Improvements in or relating to the electronic treatment of water for the purpose of reducing the effects due to hardness
IPC: A23L2/70
Filed: 1949-01-17
Abstract: 657,150. Electrolytic treatment of water. SUPERSTAT, Ltd., BRAKE, A. H., and OSBORNE, S. C. Jan. 17, 1949, No. 1228. Addition to 606,154. [Class 41] [Also in Group XVIII] In a modification of the method of treatment of water described and claimed in the parent Specification, the high-frequency power is at an electric potential of between 30 and 1000 volts at frequencies in the audio and supersonic ranges.
Patent GB-888349-A (GB)
Title: Improvements in or relating to television synchronising signal control apparatus
Inventor: MARCH ROY COLLINS
IPC: H04N5/12
Filed: 1960-01-13
Abstract: 888,349. Automatic phase control systems. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 16, 1960 [Jan. 13, 1960], No. 1251/60. Class 40(5). [Also in Group XL(b)] In changing over from one studio programme to another a television transmitter has its local synchronizing signal source locked in phase with respect to incoming synchronizing signals by a phase comparator but the latter is, by a gating circuit, only fed with incoming sync. pulses after one of the latter is coincident in timing with a local sync. pulse, after which the gate is continuously maintained open. As shown, an incoming programme selected by a channel switch S has the line sync. pulses separated and differentiated at SS and applied to a generator D producing sharp negative going pulses, at line recurrence frequency, as input to a gate G. The latter comprises a transistor G1 and diode G2 in series both normally conductive to short circuit the incoming sync. pulses, but on the transistor G1 being blocked by pulses on its base, from a multivibrator source MV of local line sync. pulses, the diode G2 is blocked and the incoming sync. pulses pass through an amplifier A to a phase comparator P with other square wave input derived from the multivibrator MV, and whose output stabilizes the phase of a local sync. generator SG controlling MV. The first pulse from A operates a bi-stable circuit B with output applied to G1 to maintain the gate G open, but immediately prior to the switch S selecting a channel a switch Sl (one to each channel) is closed to connect an initially uncharged capacitor Cl across the bi-stable circuit B to switch it to its other state closing the gate G.
Patent GB-314415-A (GB)
Title: Improvements in and relating to cane harvesting machinery
IPC: A01D45/10
Filed: 1928-03-26
Abstract: 314,415. Falkiner, R. S. March 26, 1928. Divided on 314,364, [Class 127, Sugar], and 317,352. Sugar-cane cutting machines.-In a cane-har. vesting machine of the type described in Specifications 251,739 and 284,683 the cut cane falls on to a conveyer 5 that carries it to a pair of rotating rollers 6, these rollers preferably being provided with pneumatic or resilient tyres. A second moving belt 7 assists in directing the cane between the rollers. The rollers 6 feed the cane below a ledger blade 8 provided with guiding side plates and into the path of knives 9 carried between two discs mounted on a rotating shaft 12. The cane, tops, and trash are all chafled or cut up into small pieces. The knives 9 are held on seats 13 by bolts 14 bearing on clamping pieces 15. A deflector comprising three curved plates 16 is mounted on the shaft 12 and engages and ejects the pieces of cane cut off by the knives 9. Air blast arrangements as described in Specification 251,739 and 284,683 may be employed if desired to separate the cut chaff or trash from the cut cane. In a modification the cane is cut while held between two pairs of rollers by rotary knives acting at right angles to the path of the cane. Fan blades may be fitted to these knives.
Patent GB-802172-A (GB)
Title: Improvements in or relating to rotary tipplers
Inventor: WARD ERIC
IPC: G01G19/04
Filed: 1956-01-14
Abstract: 802,172. Rotary tipplers. STRACHAN & HENSHAW, Ltd. March 7,1957 [Jan. 14, 1956], No. 1323/56. Class 78 (4). [Also in Group XVIII] Truck-supporting platform 23 is supported on the cradle 17 of a rotary tippler by a pair of links 28 which permit the platform to move sideways, during tipping, to bring the truck side into engagement with a bolster 18. The cradle is supported from the tippler frame by links 22 and is provided with rollers 19 which engage arcuate guides 20 in the rings 11. The tippler is provided with weighing apparatus (see Group XVIII).
Patent GB-1201735-A (GB)
Title: Apparatus for manufacture of insulated cable
IPC: B29C48/05
Filed: 1969-01-09
Abstract: 1,201,735. Cooling extrusion-coated cores. SUMITOMO ELECTRIC INDUSTRIES Ltd. 9 Jan., 1969 [9 Jan., 1968 (2)], No. 1328/69. Heading B5A. In the process of coating a wire 1 with plastics by passage through an extrusion head 3<SP>1</SP>, the coated wire 1<SP>1</SP> is cooled by liquid from a spray 10 and the energy of vibrations set up in the coated wire is absorbed by passage through a device 9 whose length in the direction of movement of the wire is less than the corresponding length of spray 10. As shown, device 9 is a water trough situated upstream of spray 10. Alternatively the trough may be situated downstream of spray 10 but preferably is situated between two sprays 10, Fig. 3 (not shown). Modified forms of device 9 include the use of two troughs (12), Fig. 5 (not shown), interconnected by a conduit (14) which may act as an electrode in the measurement of coaxial capacitance, or two troughs (12) with a V-shaped trough therebetween, but not connected to troughs 12. Further, device 9 may comprise a trough (12), Fig. 6 (not shown), and a sponge (15) therein through which the coated wire passes. Various spray arrangements are doscribed, Figs. 7-9 (not shown), and the apparatus may include a water removal device 7, Fig. 2, e.g. an air wiper or sponge. According to the invention the use of spray cooling allows the haul-off speed to be increased without stretching of the wire. Comparison is made with water trough cooling, Fig. 10 (not shown).
Patent GB-1154407-A (GB)
Title: Novel 9beta,10alpha-Steroids
IPC: C07J75/00
Filed: 1967-09-06
Abstract: 1,154,407. 9#,10α-Pregnenes. F. HOFFMAN-LA ROCHE & CO. A.G. 6 Sept., 1967 [8 Sept., 1966], No. 1418/69. Divided out of 1,154,406. Heading C2U. The invention comprises novel compounds of formula wherein at least one of R<SP>1</SP> and R<SP>2</SP> is a halogen atom or alkyl group, the other alternatively being hydrogen, and #<SP>6</SP>-dehydro derivatives thereof. The compounds wherein R<SP>1</SP> is halogen or alkyl are prepared by alkylation or halogenation of the corresponding 4-unsubstituted compounds which may first be converted to their 3-pyrrolidyl enamines in the case of fluorination. The compounds wherein R<SP>2</SP> is Cl, Br or F are prepared from 16α-acetoxy-9#,10α-pregn-4-ene- 3,20-dione by converting into its 3-enol acetate which is then reacted with N-(bromo or chloro)- succinimide or perchloryl fluoride followed by cleavage of the 16-acetoxy group. The compound 6-chloro-9#,10α-pregna-4,6,16-triene-3, 20-dione is prepared from 16α-acetoxy-9#,10α- pregna - 4,6 - diene - 3,20 - dione via 6 - chloro- 7 - hydroxy - 16α - acetoxy - 9#,10α - pregn - 4- ene - 3,20 - dione and 6 - chloro - 16α - acetoxy- 9#, 10α - pregna - 4,6 - diene - 3,20 - dione. The compounds wherein R<SP>2</SP> is alkyl are prepared from 9#,10α-pregna-4,16-diene-3,20-dione by oxidizing it to a 3,6,20-triketone which is selectively ketalized at positions 3 and 20 and then reacted with an alkylidene-phosphorane and deketalized to give a 6-alkylidene-9#,10α- pregna-4,16-diene-3,20-dione which is either hydrogenated to obtain a 6-alkyl-#<SP>4,16</SP> product or isomerized to obtain a 6-alkyl-#<SP>4,6,16</SP> product.
Patent GB-1422232-A (GB)
Title: Process and system for producing metalized agglomerates and recovery of non-ferrous values from waste materials
IPC: C22B1/24
Filed: 1973-01-10
Abstract: 1422232 Metallized pellets HARSCO CORP 10 Jan 1973 1418/73 Heading C1A [Also in Division C7] A process for producing agglomerates from batches of waste material of the type containing ferrous and zinc values comprises: processing each batch of waste as necessary to provide dust; testing each batch for its zinc content; combining batches into fractions of like zinc content; separately storing the fractions; selectively discharging dust from the separately stored fractions and blending the dust together to provide a product having a predetermined zinc content; pelletizing the product; indurating the pellets and heating the pellets with a reductant in a reducing atmosphere to volatilize the zinc values and to form an agglomerate substantially free of zinc. The process is applicable to metallurgical dust from iron and steel-making especially from oxygen blown processes. The pellets can be indurated by heating pre-dried pellets at 300‹ to 1900‹ F. and reduction may be carried out by passing them together with a reductant through a furnace in countercurrent to combustion gases, at a temperature of 1400‹ to 2500‹ F. The zinc values are recovered and the metallized pellets are cooled by liquid in the presence of air without contamination from the combustion gases, giving a material with less than 0À2% zinc suitable for recharging into a metallurgical furnace. The magnetic portion of the product may be separated magnetically and divided into larger and smaller size fractions, and the smaller fraction is returned to the pelletizing step. Calcium carbonate may be added as a desulphurization agent during the reduction step.
Patent GB-668117-A (GB)
Title: Improvements relating to automatic firearms
IPC: F41A3/44
Filed: 1950-01-19
Abstract: 668,117. Automatic firearms. CZECH FACTORY OF ARMS, NATIONAL CORPORATION, and KRATOCHVIL, J. Jan. 19, 1950. [Jan. 19, 1949] No. 1432/50. Class 119. The barrel 1 is locked to the surrounding breech-block 2 at the time of firing by rollers 7 which are mounted in guideways 6 provided in the rear of the barrel. In the construction shown, the barrel is guided both at the front and the rear in the breech-block, and is formed, between the transverse guideways 6, with a groove 8 adapted to accommodate a wedge 9 secured to the fixed frame 5. When the barrel and breech block are in the forward position, as shown in Figs. 1 and 3, the wedge holds the rollers outwards into engagement with grooves 10 in the breech-block thus locking the latter to the barrel. The parts recoil together on firing until the barrel is stopped by an abutment 19 on the frame 5 and as the rollers by this time are clear of the wedge 9 they can now move inwards to enable the breech-block to recoil alone against the action of the spring 11.
Patent GB-157763-A (GB)
Title: Improvements in pistons
IPC: F16J1/00
Filed: 1921-01-10
Abstract: 157,763. Matthews, K. N., and Francis, S. R., (Assignees of Bachman, H. J.). Nov. 15, 1916, [Convention date]. Locking nuts.-A screw stud 12, securing two piston parts 2 together, is locked bv a cruciform washer 13, one arm of which is bent upwards to engage the head of the stud, while the other arms engage lugs 14 on the piston head.
Patent GB-416713-A (GB)
Title: Improvements in fuels for internal combustion engines
IPC: C10L1/18
Filed: 1933-01-17
Abstract: Motor spirit consists of petrol or petrol and benzol, and a small proportion of cyclohexanone, and/or methyl-cyclohexanone. 1,0 per cent of the ketone is a suitable proportion when the spirit is used as fuel and for decarbonizing the engine cylinder, 0,1 per cent when the cylinder is clean.
Patent GB-820628-A (GB)
Title: Improvements in or relating to soldering
Inventor: BELL IAN CHARLES MCLEAN
IPC: B23K1/00
Filed: 1956-01-18
Abstract: 820,628. Making electric fuseheads; soldering; coiling. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 27, 1956 [Jan. 18, 1956], No. 1673/56. Classes 83 (2) and 83 (4). [Also in Group XXI] In spot soldering a thin wire to a metal sheet inclined to the horizontal, the sheet, wire and a portion of solder are assembled in that order and heat is applied directly to the solder by an electrically conducting wire to which molten solder does not adhere and which is positioned to afford a catchment for solder extending to a position above it by permitting solder to run down on to it when melted and limit the area over which solder will extend. A comb for forming low-tension electric fuseheads for detonators is made from two sheets of brass 2 cemented to electrically insulating material 3 and a resistance wire 1 is wound round each tooth to form a bridge over a cut-away portion thereof. The comb is held in clamps 5 while flat ribbons 9 of flux-cored solder are fed (Fig. 2) to each side of a tooth. Soldering bits 7 formed from bent tungsten wire are pressed against the solder, knives 6 cut off the fed lengths of solder and a current of 150 amps. is passed for 0.2 sec. through the bits 7 to melt the solder which on resolidifying forms beads 11 (Fig. 6). The wires 7 may be of aluminium or aluminized copper. In a machine for soldering bridge wires to the teeth of combs, a weight-controlled feeding device 13, Fig. 8, directs combs 14 from a loading hopper 15 to a guide 16 where feed sprockets 17, 18 move the combs tooth by tooth past the operating stations. At the first station the resistance wire 19 on a reel 20 is wound about each tooth by a rotating disc 20. At a second station flat ribbons of flux-cored solder 23 are drawn from reels 24 by rollers 25, 26 through guides 27 to the soldering position where bits 28 carried on levers 30 press the solder portions against a tooth, the solder portions being then cut off by knives 31. Current from transformers 32 is passed through the bits 28 to melt the solder portions the current duration being controlled by mechanism synchronized with the driving mechanism for the apparatus, and the bits remain in position until the solder resolidifies. The bits are retracted and the comb moves forward to brushes 34 which remove excess resistance wire on each tooth and the finished combs are ejected by a pusher bar 36 into a hopper 37.
Patent GB-865330-A (GB)
Title: Polymerization process
IPC: C08F2/00
Filed: 1959-01-16
Abstract: Polymers of controlled average molecular weight are made by polymerizing one or more monomers containing a CH2=C< group in an aqueous medium at a pH not higher than 4 in the presence of a redox-catalyst system comprising chlorate and sulphoxy ions and controlling the molecular weight by increasing or decreasing respectively the ratio of molar equivalents of chlorate ions to monomer without changing the ratio of molar equivalents of sulphoxy ions to monomer whereby an increase of the ratio gives an increased molecular weight and a decrease of the ratio a lower molecular weight.  The chlorate ions may be obtained from chloric acid, ammonium, sodium, potassium, and lithium chlorate, or alkaline-earth metal and heavy metal chlorates.  The sulphoxy ion may be obtained from sulphur dioxide, and water-soluble sulphates, bisulphites, meta-bisulphites and dialkyl sulphites. The Specification contains an extensive list of monomers which may be homoor copolymerized selected from vinyl and isopropenyl aromatics, e.g. styrene and isopropenyl toluene, acrylonitrile and substituted acrylonitriles, acrylamides and substituted acrylamides vinyl esters, e.g. vinyl acetate and vinyl acrylate, esters of acrylic and methacrylic acids, vinyl ethers, dialkyl and dimethallyl amine, diallyl benzene, and vinyl and vinyl substituted-N-containing heterocyclics such as vinyl pyridenes, methyl-substituted vinyl pyridines and vinyl quinolines.  The preferred copolymer is one containing at least 70% acrylonitrile and the remainder vinyl pyridine.  Specifications 722,451 and 735,225 are referred to.
Patent GB-1405389-A (GB)
Title: Marine drive system
IPC: B63H23/06
Filed: 1974-01-14
Abstract: 1405389 Propelling ships S W RAULERSON 14 Jan 1974 01720/74 Heading B7V [Also in Division F2] A marine drive system for connecting a single marine engine to twin screw propeller shafts in a boat, comprises a unit B with an input shaft 2 driven by the engine and driving a shaft 16 by way of gears 3, 17, the shaft 16 passing through and projecting from each side of the housing 1 of the unit B and being connected at each side by way of a universal joint 36 (only one side being shown in Fig. 2) to drive a shaft 90 mounted in a gear unit C containing gears 100, 110 and a shaft 112 coupled to a splined input shaft 126 of an independently operable marine transmission E the output shaft of each of which carries a propeller (not shown), the arrangement being such that the twin propellers are contrarotating since they are both driven from the shaft 16. Each end of the shaft 16 carries an adapter 25 mounting the outer race 76 of the associated universal joint 36. The inner race 70 of the joint is mounted on a splined shaft 37 and a cage 74 locating equally spaced balls 72 is interposed between the races 70, 76. External splines on a portion 43 of the shaft 37 telescope within internal splines in the associated shaft 90 allowing axial adjustment therebetween. The housing 1 of the unit B includes an extension 21 on each side, each extension having a pair of diametrically opposed ears 84 (one of which is shown in dotted lines in Fig. 2) the ears 84 interfitting with a pair of ears 82 formed on housing section 30 of the associated unit C. A gimbal ring 29 is positioned about the ears 82, 84 and is pivotally connected thereto by pairs of pins 33, 86 disposed on axes at right angles to each other. Housing section 30 is formed as a split collar 94 which may be clamped about the main housing section 41 of the unit C by bolts and nuts 96, 98 to allow adjustment of the distance between the units B, C. In this way the housing sections enclosing the universal joints 36 may be adjusted to suit the in use relative positions and attitudes of the units B, C.
Patent GB-851597-A (GB)
Title: Improvements in or relating to the heating of furnaces
Inventor: WILLIAMS NORMAN HENRY
IPC: F22B31/08
Filed: 1956-01-18
Abstract: 851,597. Combustion apparatus. HUMPHREYS & GLASGOW Ltd. Jan. 15, 1957 [Jan. 18, 1956], No. 1777/56. Class 51 (1). Hot combustible gases from an oil-fired reaction chamber 10 are used to heat the air supply to the chamber through pipes 18 embedded in the refractory lining of the conduit 12 connecting the chamber 10 and a furnace 13 prior to combustion in the heating flues of the furnace by the admission of air, which may be preheated, at selected positions. The resulting gases pass through a stack 14 where they heat combustion air from a blower 16 in a heat exchanger 17. The heated air may be cooled by the addition of cold air from a blower 21 as it passes to the chamber 10 via the pipes 18. Additional cooling air may be supplied by a blower 20. Steam, which may be preheated separately, may be admixed with the air at any stage. Instead of the pipes 18 the air may be heated as it passes through refractory coated tubes of a heat exchanger formed in the conduit 12. Steam, oxygen or an oxygen-air mixture may replace air as the comburrent.
Patent GB-874167-A (GB)
Title: Method and machine for making cup-shaped metal articles
IPC: B21K21/08
Filed: 1959-01-19
Abstract: 874,167. Extruding cupped articles; forging. TEXTRON Inc. Jan. 19, 1959 [Jan. 24, 1958], No. 1843/59. Class 83 (4). A cup-shaped metal article is made on a machine having a plurality of co-operating punches and dies by first applying pressure to both sides of a workpiece to increase its diameter and form it into a disc 44 having indented end faces, and then backwardly extruding the disc around a punch 56 to form a cup-shape 58, and simultaneously forming a projection 59 on the opposite side of the disc. Rod stock 14, preferably of copper, is fed through a shear die 13, servered by a knife 15 and transferred thereby to a first die station 1 where it is squared, sized and indented on both sides in a die 18 by a punch 20 carried by a reciprocating gate 11. The blank is ejected by a pin 22 and transferred to die station 2 where it is upset to disc shape 44 between a spring-loaded pin 34 surrounded by sleeve 31 and a punch 38 having a central spring-loaded locating pin 39. Punch 38 acts as a bumper for the reciprocating gate. The blank is next transferred, during which it is turned through 180 degrees, to die station 3 where it is backwardly extruded to cup-shape 58 in a die 50 by a punch 56 and simultaneously a rear projection 59 is extruded thereon. At the next station 4 the thickened end 59 is extruded forwardly by a punch 68 to form a stepped cup-shaped article 70 which is then sized to final shape 85, 86, Fig. 12, at station 5 within a die 74 by a punch comprising an outer sleeve 80 and a central pin 79. Cooling oil is supplied to die 74 through ducts 77, 78.
Patent GB-262622-A (GB)
Title: Improvements in or relating to gas holders
IPC: F17B1/00
Filed: 1926-01-22
Abstract: 262,622. Clayton, Son & Co., Ltd., and Clayton, J. Jan. 22, 1926. Holders.-The spiral strips 4 supporting the spiral guide rails 1 of a gas-holder lift are secured at their ends to the thicker plates 2, 3 at the top and bottom of the lift by welding, so as to afford a level bearing for the spiral rails throughout their entire length. The longitudinal edges of the strip are riveted to the side sheeting of the gas-holder in the usual manner.
Patent GB-960210-A (GB)
Title: Climbing film evaporator
IPC: B01D1/10
Filed: 1961-01-17
Abstract: 960,210. Film evaporators. APPAREILS ET EVAPORATEURS KESTNER. Jan. 17, 1961 [Nov. 9, 1960], No. 1861/61. Heading B1B. An evaporator of the climbing film type comprises a nest of vertical tubes 2 (only two of which are shown) in a heating chest I, a centrifugal baffle 6 mounted at the outlet of the tubes, and an annular liquid/vapour separator 8 surrounding the upper end of the heating chest. The inner wall 10 of the separator is thermally insulated from the outer wall of the heating chest by an air gap. The liquid to be concentrated is introduced through inlet 5 and rises through the tubes 2 while undergoing evaporation in known manner. The mixture of vapour and concentrated liquid impinges against the blades of baffle 6; and the liquid is induced to flow down the outer wall 9 of the separator. This concentrated liquid is withdrawn through outlet 12. The vapour flows through aperture 14 into safety vessel 13, and is then discharged from the evaporator through duct 15.
Patent GB-579317-A (GB)
Title: Improvements in or relating to electron discharge devices employing hollow resonators
IPC: H01J25/24
Filed: 1942-02-13
Abstract: 579,317. Resonators; discharge apparatus. PEARCE, A. F. Feb. 13, 1942, No. 1918. [Classes 39 (i) and 40 (iii)] In a resonator for use in a velocity modulated discharge tube or for other purposes, the tuning is effected by a strip 12 in contact with the outer rigid wall 11 of the resonator. The strip is either a flexible spring whose ends slide on the resonator wall or has corrugated ends 16 connected to the wall. The strip is adjusted by a screw j and nut gear 15. Insulating material may be interposed between the strip and the resonator wall, so as to give a merely capacitative connection.