baber/WOPTO huggingface dataset:
Patent GB-1030146-A (GB)
Title: Improvements in grab cranes
Inventor: FINCH STANLEY GEORGE
IPC: B66D1/08
Filed: 1964-04-23
Abstract: 1,030,146. Controlling winding apparatus on grab-cranes. PRIESTMAN BROS. Ltd. March 1, 1965 [April 23, 1964], No. 16889/64. Heading B8B. A grab crane in which the grab is controlled by a hoist rope and a hold rope which are wound on separate drums driven through separate fluid-operated clutches under the control of separate manually operated valves comprises a further valve controlling fluid pressure supplied through a further conduit to the hold rope drum clutch and mechanically connected with the hoist rope control valve to a single handpiece so that the latter is movable to supply fluid pressure to both clutches simultaneously, thereby holding the hold rope taut during hoisting of the grab. As described, two pneumatic control valve assemblies 1, 2, Fig. 1, are provided for controlling the hold and hoist ropes and slewing of the jib, the assembly 1 consisting of two valves with a single joystick control and the assembly 2 being similar but with three valves. One valve in the assembly 1 controls the air supply through a line 3 to the joist rope drum clutch, the valve being opened by movement of the joystick in the direction of the arrow 5. The second valve in the assembly 1 forms the further valve which is operable by movement 7 of the joystick in the direction of the arrow 8 to supply air through the further conduit 6 and a double check valve 7 to the hold rope drum clutch sufficient to hold that rope taut during hoisting. The assembly 1 is provided with an adjustable plate 9, Fig. 4 (not shown), having a guide edge 10 along which the joystick 4 is moved in the direction of the arrow 11 to ensure that both valves are opened. The joystick is spring-loaded to its neutral position and is held in its fully moved position by a pivoted, spring-loaded hook catch 12, the latter being connected by a Bowden cable 17 to a brake pedal for the hoist rope drum so that when the brake is applied the joystick reverts to its neutral position. The three valves of the assembly 2 are arranged at 90 degrees to each other and are operated by a central joystick, one pair of opposite valves being connected by conduits 22, 23 to pneumatic control means for slewing the jib in one direction or the other and the third valve being connected by a conduit 26 to the check valve 7 for supplying air to the hold rope drum clutch at a pressure higher than that supplied to the check valve 7 by the further valve of the assembly 1 so that by operation of the third valve the hold rope can take the full weight of the grab when the hoist rope is to be released to open the grab. An additional valve may be provided in each of the assemblies 1 and 2, these valves being opened by movement of the joysticks in the direction of arrows 27, 28 to supply air to clutches for driving the hoist rope drum and the hold rope drum in a direction for lowering the grab.
Patent GB-595037-A (GB)
Title: Improvements relating to the dehydrogenation and hydrofining of napthas
Filed: 1945-07-03
Abstract: A straight-run naphtha is fed to a dehydrogenation zone, and the products, in admixture with cracked naphtha, fed to a hydrofining zone, the quantities of straight-run and cracked naphthas being such that sufficient hydrogen for the hydrofining is produced by the dehydrogenation.  A reactor having the lower part packed with dehydrogenating catalyst, and the upper part with hydrofining and desulphurizing catalyst, with an intermediate feed point for cracked naphtha, may be used.  Catalysts include oxides and sulphides of Al, Fe, Ni, Co, Cr, Mo, Cu, Mn and W, metals such as Fe, Ni, Co or Cu, and molybdates, thiomolybdates, thiotungstates and aluminates, alone or on carriers.  The ratio of straight-run to cracked naphtha is generally between 2 and 5 : 1. Conditions for dehydrogenation are: 750-1000 DEG  F.; 200-600 p.s.i.; feed rate 0.5-2 v./v./hr.; and hydrogen recycle 1500-4000 c.f.b.; and for hydrofining: 750-900 DEG F.; 300-1000 p.s.i.; 0.5-20 v./v./hr.; and 2000-4000 c.f.b.  Products from the reactor pass to a high pressure and a low pressure separator, the gaseous fraction being passed to an absorber for enrichment in hydrogen, and recycled.  In an example, a straight-run light naphtha is passed over molybdenum trioxide on alumina, and the product with 1/3 its volume of naphtha obtained by cracking a wax distillate over silica-alumina passed over a cobalt molybdate hydrofining catalyst.
Patent GB-993745-A (GB)
Title: Preparation of beryllia foam structures
IPC: C04B38/02
Filed: 1962-05-02
Abstract: BeO ceramic is made by providing a slip which is substantially aqueous in base and contains BeO powder of less than 100 U.S.S. mesh, an organic binding agent capable of forming a gelatinous suspension in water and a blowing agent, with or without a destabilant for the blowing agent, heating the slip to a temperature above room temperature such that the blowing agent decomposes whilst the binding agent retains its effectiveness to provide an expanded and set solidified structure and thereafter sintering the set structure. Specified binding agents are tragacanth gum, carboxy methyl cellulose, hydroxyethyl cellulose and glucose.  Conventional blowing agents which decompose at 30-120 DEG  C. are listed.  NH4OH may be used as destabilant for H2O2.  The porosity of the ceramic may be 70% by volume. The slip may be cured at 30-120 DEG  C. and sintered at 1850 DEG  C.
Patent GB-1344522-A (GB)
Title: Synthetic sheet material
IPC: C08L67/00
Filed: 1971-05-25
Abstract: 1344522 Polyester films MITSUBISHI JUSHI KK 25 May 1971 [26 May 1970] 16946/71 Heading B5B [Also in Division C3] A sheet material suitable for use as a writing material is produced by uniformly mixing a linear polyester resin with a thermoplastic resin having a higher glass transition point than that of the polyester resin, the thermoplastic resin constituting 7-35% by weight of the total polymer mixture, forming the mixture into a film and stretching the film at a temperature above the glass transition point of the polyester resin but below the melting point thereof. The polyester resin may be polyethylene terephthalate or isophthalate or a copolymer thereof and the thermoplastic resin may be polymethyl methacrylate, an acrylonitrile-styrene copolymer, an acrylonitrile-butadiene-styrene copolymer, polystyrene or a polycarbonate of 4,4-dihydroxy-diphenyl-2,2-propane carbonate. After stretching, preferably biaxially, the film may be heat-treated at temperature above the stretching temperature of the polyester but below the melting point of the mixed thermoplastics resin and polyester.
Patent GB-779262-A (GB)
Title: Process for fractionating starch
IPC: F25C1/24
Filed: 1954-06-10
Abstract: The process for fractionating starch disclosed in the parent Specification is modified in that hydrolysed starch, whose amylose fraction has a molecular weight lying between 20,000 and 100,000, e.g. soluble potato starch, is dissolved under pressure in a heated aqueous solution of magnesium sulphate, sodium sulphate or ammonium sulphate or a mixture of two or all of these salts, the solution is cooled to precipitate the amylose fraction, which is separated from the mother liquor, which is further cooled, or has its salt concentration increased, to precipitate the amylopectin fraction, which is then separated from the remaining liquor.  A small amount of an organic compound, which is not completely miscible in water and precipitates amylopectin from aqueous starch solutions, e.g. isopentanol, may be added to solution, which may also contain a small amount of a reducing agent, e.g. sodium sulphite, which is stable in the aqueous solution at the temperature, preferably over 120 DEG C., at which the starch is dissolved.  Specification 769,211 is referred to.
Patent GB-579746-A (GB)
Title: Improvements in or relating to directive electro-magnetic antenna structure
IPC: H01Q17/00
Filed: 1942-12-04
Abstract: 579,746. Directive wireless signalling. SPERRY GYROSCOPE CO., Inc. Dec. 4, 1942, No. 17313. Convention date, Jan. 29. [Class 40 (v)] Electromagnetic horns, preferably rectangular in section, are provided with partitions 15<1> ... 18<1> so spaced and arranged that the distribution of the electric field intensity across the mouth of the horn in the plane of polarization is semi-sinusoidal, being substantially zero at the edges of the mouth of the horn and a maximum at its centre. This reduces the secondary lobes present with the simple horn. The partitions 15<1> ... 18<1> and the sides 4<1>, 51 of the horn may be pivoted at their inner ends, the outer ends being connected by links to bars 50 reciprocated by a motor, so that the position of the partitions &c. may be periodically varied to control the direction of maximum transmission. The characteristic pattern of the horn may be modified by introducing waveadjusting means into the inner mouths of the channels defined by the partitions. Such waveadjusting means may comprise rotatable vanes, Fig. 16 (not shown), or gas discharge tubes controlled by a modulated current, Fig. 17 (not shown), or apertured gates controlled by a rotating crank-shaft, Fig. 18 (not shown). Secondary lobes of radiation may be blocked by the use of (1) reflectors 87, 87<1>, Fig. 11, and energy-absorbing means 86, 86<1>, such as a poor conductor arranged between the horn and the reflector, or (2) additional horns 98, 99, Fig. 13, having in their throats discs of carbon 96 or other energy-dissipating material, or (3) corrugated or V-shaped copper reflectors 100, 101, Fig. 14, associated with absorbing material, if desired, or (4) a spherical body completely surrounding the horn except where necessary to permit radiation in the desired direction.
Patent GB-1091398-A (GB)
Title: Improvements in or relating to method and apparatus for an electrostatic precipitator
IPC: B03C3/76
Filed: 1966-04-20
Abstract: 1,091,398. Electrostatic precipitators. KOPPERS CO. Inc. April 20, 1966 [April 20, 1965], No. 17381/66. Heading B2J. An electrostatic precipitator 20, Fig. 1, having a current source for the collector and discharge electrodes 31, 35, a particle receiver and rapper mechanism 56, 59 which is cyclically operated by a known control means comprises means responsive to the current supplied to the electrodes to render the rapper control means ineffective or effective when the current respectively falls below or returns to a normal level for a predetermined time. As described, the control means comprises a known currentsensitive relay (75, Fig. 4), provided in the circuit feeding the electrodes, having a movable contact which assumes a position corresponding to applied current at a speed dependent upon the rate of change of current. The relay has high and low current closing contacts (84, 89) which are independently adjustable to vary the elapsed time from a closed high current position to a closed low current contact position in response to a reduction in the current level. The contacts (84, 89) actuate relays (86, 87) which control the rappers via contacts (110, 111).
Patent GB-919842-A (GB)
Title: A new or improved anti-slip device for boots and shoes
IPC: A43C15/08
Filed: 1958-05-31
Abstract: 919,842. Non-skid attachments for footwear. KING, J. A. May 11, 1959 [May 31, 1958; Dec. 8, 1958], Nos. 17471/58 and 39487/58. Class 17 (2). An anti-slip device for boots or shoes comprises a base member 1 to be fixed at a position in front of the heel and, pivoted thereto by pins 9, 8 and co-operating holes, a plate 2 which bears projections 7 at one edge and is urged into an operative position by a torsion-spring 3, the plate 2 being secured in that operative position or the inoperative position (in which the projections are received in the space beneath the instep) by shoulders 16 on the plate 2, which engage with notches 14 or 15 in lugs 5, 6 on the member 1, under the axially-directed force of the spring 3, which is also in compression. The device is assembled by threading the spring on the pin 9, pushing that pin endwise into its hole, pushing pin 8 sideways through slot 11 into its hole and rotating the plate 2 to cause the edges 12 of lugs 5, 6 to enter gaps 13 in the plate.
Patent GB-1280396-A (GB)
Title: Glucose isomerase and process for the production thereof
IPC: C12N9/92
Filed: 1970-04-13
Abstract: 1280396 Glucose isomerase MILES LABORATORIES Inc 13 April 1970 [16 April 1969] 17490/70 Headings C3H [Also in Division C2] Glucose isomerase is formed by growing under aerobic conditions in a nutrient medium a culture of Streptomyces olivaceus NRRL 3583 or a mutant thereof, and recovering the enzyme. The cells of the microorganism may be separated from the nutrient medium, the cells ruptured and debris removed and the residue lyophilized. The nutrient medium contains xylose, a source of nitrogen (e.g. peptone, yeast extract, meat extract, amino acids) and inorganic salts (e.g. NaCl, MgSO 4 ), and preferably carbohydrates (corn starch, dextrose, lactose, milk solids, wheat bran). The microorganism is preferably grown at 15-35 C. and pH 6À8-7À1 for 20-50 hours under submerged conditions. The enzyme may be used in isomerizing glucose to fructose.
Patent GB-1062683-A (GB)
Title: Apparatus for packaging yarn
IPC: B65H54/82
Filed: 1965-04-26
Abstract: 1,062,683. Packaging by winding. JOSEPH BANCROFT & SONS CO. April 26, 1965 [May 11, 1964], No. 17532/65. Heading B8C. [Also in Division D1] The yarn 80 passes down a tube 50 and is wrapped around a cylinder 43. The cylinder 43 is journalled in a rotating head 40 carrying the tube 50. The head 40 and cylinder 43 are so geared together that cylinder 43 is maintained stationary whilst the head 40 rotates around it, the cylinder 43 carrying a mechanism causing the loops of yarn to be discharged. In the construction illustrated in Fig. 1 the cylinder 43 carries a plurality of reciprocable racks 71 that cause the yarn loops 83 to be forced off the lower end of the cylinder 43 and on to a disc 22. The disc 22 rests on a plate 18 carried by a pair of posts 17 on a rotating disc 13. Maintained stationary above the disc 22 is a helical shaped ring 30 having an opening 38 through which the loops 83 can pass from the cylinder 43 to the disc 22. As the disc 22 rotates, the loops 83 collected thereon are packed down by the helical shaped ring 30 and as the package grows the plate 18 is forced downwardly against springs 23 on the posts 17. On completion of a package (84), Fig. 6 (not shown) a bracket 31 which carries the head 40, cylinder 43 and helical ring 30 is lifted up and shifted to provide clearance, and a top disc (85) is placed over the package and pressed downwardly to compress the yarn at least to the height of a perforated core tube 20 to which the disc 85 is then secured by a latch (86). An extension 21 is then lifted off core tube 20 and the package together with the support disc 22 and core tube 20 can be removed for treatment of the package with fluid. In a modified construction, Fig. 12 (not shown) the reciprocable racks 71 are replaced by endless conveyer belts that feed the loops 83 downwardly. In a further modified construction the helical shaped ring 30 is wholly or partially in the form of rollers. The loops 83 need not be fed directly from the cylinder 43 to the disc 22 in that the cylinder 43 may be displaced to one side of the disc 22 and the loops 83 conveyed thereto by an endless belt. Spray nozzles may spray a setring or relaxing agent or a dye on the loops 83 whilst on the endless belt and the endless belt may feed the loops through a setting zone prior to discharging them on to the disc 22.
Patent GB-1501818-A (GB)
Title: Explosion proof electrical apparatus
IPC: H02B1/28
Filed: 1976-04-29
Abstract: 1501818 Switchgear structures Y S RIMAN A P POLTORAK S S NEDOSEKOV N A TARABRINA V I GALENKO N T KRASILNIKOV F I KUKENKO V G MIRONENKO A M KHARCHENKO and J S LEVCHUK 29 April 1976 17583/76 Heading H1N Electrical switchgear for use in an explosive atmosphere has a casing 1 in which there are two conductor chambers 6, 8, a main switch chamber 2 and an isolator chamber 4, wherein the isolator chamber has two of its walls 15, 16, formed from plates which carry connecting terminals 14, 19 and which are separate from the casing and spaced apart with the contacts of the isolator 5 arranged therebetween. These two walls 15, 16 of the isolator chamber may be interconnected by posts 17 and have flange surfaces which co-operate with flange surfaces 27, 28, of the casing. The other walls of the isolator chamber are part of the casing 1 or in a further embodiment, Fig. 4, not shown, the side walls of the isolator chamber may also be separate from the casing 1. An interlocking arrangement connected to the isolator operating handle 23 prevents the lid 11 of the main switch chamber being opened unless the isolator has been operated to isolate the main switch 3.
Patent GB-1068660-A (GB)
Title: Improvements in or relating to rinsing liquids for coagulating particles of varnishes and primers
IPC: C09D7/00
Filed: 1966-04-22
Abstract: An additive for rinsing liquids comprising (a) a water soluble alkali metal, ammonium and/or alkaline earth metal salt known to coagulate particles of paints, varnishes and primers. Examples given are chlorides, nitrates, carbonates and bicarbonates; (b) a hydroxide sparingly soluble in water or a mixture of such hydroxides; (c) an amine or mixtures thereof. Optional ingredients include isocyanates, aldehydes, silicone, silicone oil or emulsion, defoaming agents and spent sulphite liquor.
Patent GB-1512567-A (GB)
Title: Mode transducers for optical waveguides
IPC: H04B10/2507
Filed: 1975-04-29
Abstract: 1512567 Controlling light; light guides SIEMENS AG 29 April 1975 [2 May 1974] 17688/75 Headings G2F and G2J An optical waveguide mode transducer for converting modes of different orders but of the same polarization, comprises a coupling taper 12, 13 arranged between two light guides 11', 14, the ratio of the angles of opening # 1 , # 2  at the input and output of the taper being equal to the ratio of the squares of the thicknesses at the output and input of the taper, i.e.  To convert a plurality of modes with a constant phase relation all to the same mode, the converted mode components must be superimposed in the correct phase. This may be effected by electrooptic control of the guide or associated couplers, Figs. 3 and 4 (not shown).
Patent GB-669205-A (GB)
Title: Process for the manufacture of esters of cholesterol and of cosmetic preparations including such esters
IPC: A61K8/63
Filed: 1949-07-05
Abstract: The ester reaction product of vitamin F with cholesterol, i.e cholesterol linoleate and/or cholesterol linolenate.  These compounds are obtained by esterifying cholesterol of 70-75 per cent purity with linoleic acid which contains approximately 70 per cent linoleic acid plus linolenic acid.
Patent GB-1465643-A (GB)
Title: Hay roll forming machines
IPC: A01F15/08
Filed: 1974-04-24
Abstract: 1465643 Harvesting SPERRY RAND CORP 24 April 1974 [24 April 1973 (6)] 17869/74 Heading A1F The description is substantially identical to that of Specification 1465641. The claims relate particularly to the working relationship between the upper and lower roll forming aprons.
Patent GB-1148975-A (GB)
Title: Dihydroxy diphenyl sulfone and its preparation
Inventor: MAUSNER MARVIN LEON
IPC: C07C317/22
Filed: 1967-04-19
Abstract: 1,148,975. Dihydroxydiphenyl sulphone. WITCO CHEMICAL CO. Inc. 19 April, 1967, No. 17947/67. Heading C2C. A process for producing dihydroxydiphenyl sulphone comprises initially reacting substantially stoichiometric proportions of phenol and concentrated or fuming sulphuric acid at a temperature of from 130‹ to 170‹ C. under conditions of agitation, then adding benzene in small increments to the reaction mixture at a rate to maintain the reaction mixture within the aforesaid temperature range, removing the water formed during the reaction by azeotropic distillation and recovering the dihydroxydiphenylsulphone from the reaction mixture. An example is furnished.
Patent GB-333004-A (GB)
Title: Improvements in or relating to metallic frame structures for supporting shelving trays or bins and to similar frame-like structures
IPC: A47B57/10
Filed: 1929-06-12
Abstract: 333,004. Haran, J. W. June 12, 1929. Shelves.-In a metallic frame structure, particularly for supporting shelves, vertical corner standards are provided, of L-, T- or other webbed cross-section, and integral tongues 14a are formed by stamping out the web or webs of the standards, such tongues supporting horizontal, longitudinal and/or transverse stays 15, 18 which support the shelves C, B, C, D. The members 15 may be notched, as at 15<a> for engagement with the tongues 14<a> or flat members 18 may be used. The edges of the shelves may be downwardly bent to engage over the members 15, 18, or tongues 20a may be formed thereon to' engage, adjustably, the members 15. Depending plates 21 may be provided to constitute backs or sides of the shelving, and the feet 26 may be made adjustable, to allow for inequalities in the level of the floor, by the provisions of steps 26<c>.
Patent GB-579266-A (GB)
Title: Gripping appliance for picking up articles
IPC: B25J1/02
Filed: 1944-09-22
Abstract: 579,266. Picking-up-tools. CROSSLAND, A. G. Sept. 22, 1944, No. 18094. [Class 61 (ii)] A picking - up tool comprises coiled spring wire outer and inner sheaths 1, 2 secured at their lower ends to amount 6, jaws 4 being fixed to the upper end of the sheath 2 and normally springing open, but drawn downwardly by the longitudinal tension on the sheath 2 into contact with the flared end 3 of the sheath 1 so as to be closed thereby, the jaws 4 being opened by a rod 12 threaded at the end 14 to engage the constricted part of the inner sheath.
Patent GB-259674-A (GB)
Title: Improvements in radio transmission systems
IPC: H04B1/04
Filed: 1925-07-15
Abstract: 259,674. Western Electric Co., Ltd., (Bell Telephone Laboratories, Inc.). July 15, 1925. Thermionic amplifiers, modulating systems, and generators. - A wireless transmitting - system employs a low-frequency amplifying-valve 1, Fig. 1, a modulating-valve 2, a power amplifying-valve 4 and an oscillating-valve 3 connected across a circuit coupling the modulating and power - amplifying valves. Smoothing condensers 21, 22, 37 associated with the plate circuits of the valves in conjunction with low-frequency choke coils 10, 14, 45 eliminate fluctuations in the plate currents. The plate current to the low-frequency amplifier and the modulator is supplied from a direct-current generator 47, and a resistance 23 reduces the plate voltage applied to the amplifier. The resistance, in conjunction with condensers 21, 22, also forms an attenuation-equalizing network. The generator 47 is mechanically coupled to, and electrically in series with. another direct-current generator 48 for supplying plate current to the high-power valve. A slow operating relay 49 maintains open the field 55 of generators 47, 48 until the filament-heating voltage is applied, and a relay 50 interrupts the current through the field when the plate current of all the valves exceeds a limiting value. Condensers 11 are provided to establish an equipotential point of connection to the filament of the low-frequency amplifying- valve, to prevent short circuiting of the gridbiasing generator 27, and, in conjunction with a low-frequency choke coil 26, to prevent fluctuation of potential reaching the grid. The oscillating valve has a grid-leak path which includes a gridleak resistance 20, a high-frequency choke coil 19 and an ammeter shunted by a condenser 36. A monitoring circuit coupled to the aerial circuit comprises a rectifying-valve 5 the output from which includes a high-frequency choke 61 and is associated with an indicating lamp 64 and a loudspeaker 65. A tuning-coil 32 comprises a conducting coil 77, Fig. 2, enclosed in an open insulating frame 71 and provided at one end with a pivoted arm 80 wiping over the inner surface of the end few turns, tapping points being provided for other connections to the coil. Specifications 168,056, 217,552 and 248,838 are referred to.