baber/WOPTO huggingface dataset:
Patent GB-1168141-A (GB)
Title: Change Speed Transmission
IPC: F16H3/66
Filed: 1967-05-18
Abstract: 1,168,141. Planetary change-speed gearing. FORD MOTOR CO. Ltd. 18 May, 1967 [8 Aug., 1966], No. 23135/67. Heading F2D. A three-speed and reverse gear for gas turbine powered trucks comprises first and second planetary trains 10, 12 and a third non-planetary train 14 of parallel multi-countershaft construction. The first train 10 has an input sun 16, a planet carrier 24 rigid with an input sun 26 of the second train 12, and an annulus gear 22 rigid with a planet carrier 36 of the second train 12 and with an output shaft 58. The second train planet carrier 36 has intermeshed planets 28, 32, planets 28 meshing an annulus gear 30 holdable by a brake 40, and planets 32 meshing an annulus gear 34. An input central pinion 42 of the third train 14 is connectible selectively to the annulus gears 30, 34 of the second train by clutches 44, 45 respectively. A fixed carrier 54 of the third train has intermeshed idler gears 46, 50, gears 46 meshing the pinion 42 and an output annulus gear 48 connectible by a clutch 60 to the output shaft 58, and gears 50 meshing a second central pinion 52 connectible by a clutch 62 to the output shaft. For first gear (Fig. 2, not shown) clutches 44, 60 are engaged, the output being taken from the third train annulus 48. For second gear (Fig. 3, not shown) clutches 44, 62 are engaged, the output being taken from the third train central pinion 52. For third gear (Fig. 4, not shown) only brake 40 is engaged, the output being taken from the second train carrier 36. For reverse (Fig. 5, not shown) clutches 45, 60 are engaged, the output being taken from the third train annulus 48. The first train annulus 22 is a reaction member in all ratios. It is stated that the third train carrier 54 may be held by a fluid pressure operated brake at 56.
Patent GB-662215-A (GB)
Title: Improvements in or relating to voltage comparison devices
IPC: H04Q1/18
Filed: 1949-09-07
Abstract: 662,215. Voltage comparators. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 7, 1949 [Sept. 10, 1948], No. 23146/49. Class 37. [Also in Group XL (c)] The invention is described with reference to an automatic telephone system in which a wiper of a potentiometer is stepped on until it has the same potential as the wiper of another potentiometer. The voltages from the two wipers are applied at 1, 2 to valves B1, B2 which have a valve B3 in their common cathode circuit; the stopping relay S is in the anode circuit of a valve B4 which is coupled to the anode circuit of at least one of the valves B1, B2 over a rectifier g1, g2; according to the invention, the valves B3, B4 are inter-connected so that as the voltages 1, 2 approach equality, and the current through valve B4 decreases, the current through valve B3 increases, the potential at points 3, 4 reduces and the potential applied to the grid of valve B4 decreases to accelerate the rate at which valve B4 becomes non-conducting to de-energize relay. S and stop the stepping of the wiper. As shown, valve B3 has its grid connected to a potentiometer R8, R9 across valve B4; in addition, or alternatively, a common cathode resistance R15 may be provided. To avoid release of relay S when the difference of the voltages at 1, 2 changes abruptly from a positive to a negative value, a condenser C is provided to maintain a high potential in spite of a momentary change. The Specification also discusses the effect of a change in the main supply voltage, and gives values for components to ensure that the variation of voltage at point 6 due to any such change is equal to that at points 3 and 4. If resistances R3, R4 are made unequal, the relay S is de-energized when the voltages at 1, 2 differ by a standard amount depending on the difference of R3, R4. The sudden operation of valve B4 may give rise to oscillation phenomena, and to avoid this, valve B4 may be coupled to a further valve in whose anode circuit is the relay.
Patent GB-246194-A (GB)
Title: Improvements in x-ray tubes
IPC: H01J35/16
Filed: 1925-07-01
Abstract: 246,194. Hezlet, R. K., Pullin, V. E., Warren, A. G., and West, G. D. July 1, 1925. No Patent granted (Sealing fee not paid). R÷ntgen-ray tubes. -A shield d, carried on and electrically connected with the anode c, surrounds both the anode and cathode a, so as to prevent bombardment of the glass and other parts. The shield may be of molybdenum and is provided with an aperture e for the passage of rays. The cathode stem is surrounded by a smooth sleeve f of steel or other material, to prevent emission of electrons from sharp corners. Reference has been directed by the Comptroller to Specification 242,946.
Patent GB-1139041-A (GB)
Title: Chlorflavonin
Inventor: RICHARDS MERFYN
IPC: C07D311/30
Filed: 1966-05-25
Abstract: 1,139,041. The antibiotic chlorflavonin. BEECHAM GROUP Ltd. 17 May, 1967 [25 May, 1966], No. 23329/66. Heading C2A. The invention relates to an antibacterial and antifungal antibiotic chlorflavonin of structural formula i.e. 3<SP>1 </SP>- chloro - 5: 2<SP>1 </SP>- dihydroxy - 3: 7: 8 - trimethoxy flavone. The antibiotic is produced by cultivating a chlorflavonin-producing strain of Aspergillus candidus, e.g. A.T.C.C. 20022 or A.T.C.C. 20023, under aerobic conditions in an aqueous nutrient solution containing inorganic salts and a source of assimilable carbon and assimilable nitrogen. The antibiotic is isolated from the fermentation broth by adjusting to pH 4À0 to 5À0 with H 2 SO 4 , separating the mycelium and extracting the mycelium with a hydrocarbon solvent, e.g. SBP6 (Shell-Mex Ltd.) and concentrating the extract in vacuo in order to precipitate the antibiotic. A pure substance is obtained by re-crystallization from benzene or petroleum ether. The antibiotic is a pale yellow micro-crystalline solid having a melting- point of 212 C. and which sublimes at 150- 160 C. (4 mm. Hg). It is almost insoluble in water at neutral pH but soluble in water at alkaline pH. It is soluble in ethanol and chloroform but less so in paraffinic solvents. It forms a diacetate and a dimethyl ether. On elementary analysis, it contains C=57À20%, H=3.88%, Cl=8À93%, OMe=24À78% and OH=7À82%. Alkaline hydrolysis gives 3- chloro-salicylic acid and 4,5-dimethoxy resorcinol. On reduction with magnesium and hydrochloric acid, it gives a deep red colour.
Patent GB-984296-A (GB)
Title: Improvements in or relating to flash welding
IPC: B23K11/04
Filed: 1962-06-18
Abstract: 984,296. Welding by pressure. BRITISH FEDERAL WELDER & MACHINE CO. Ltd., and T. F. TRIBE. June 18, 1963 [June 18, 1962], No. 23372/62. Heading B3R. In flash welding parts by bringing the parts into contact while passing current therethrough for pre-heating, the pre-heating current is intermittently applied for short periods by switching the current on and off while the parts abut. The parts may be tubes which are held in clamps one or both of which may be movable. The parts may be separated while the current supply remains. Separation of the parts is achieved by moving one or both clamps controlled by a timing mechanism. The periods of current flow for pre-heating may range from 5-100 cycles.
Patent GB-749784-A (GB)
Title: Improvements in or relating to gas holders
Inventor: COATES PETER CUNLIFF
IPC: F17B1/04
Filed: 1953-08-25
Abstract: 749,784. Gas holders. POWER-GAS CORPORATION, Ltd. Aug. 4, 1954 [Aug. 25, 1953], No. 23381/53. Class 54. A gas holder comprises one or more rings 13, 14 of flexible packing material and one or more inflatable tubes 15, 16, the outer peripheral parts of the rings abutting the gas holder shell 10 whilst the tubes apply radial force between the piston 11 and the inner peripheral parts of the ring or rings. The tubes are mounted between pairs of hoops 19, 20 and 21, 22 secured to a support 12 and provided with rings 23 ... 26 between which the packing rings 13, 14 are disposed. The tubes are inflated by a compressor or gas storage means mounted on the support 12 to which access is obtained by a telescopic ladder or cage from the top of the gas holder. Rubber, natural or synthetic, or thermoplastic material may be used to manufacture the tubes which may be formed integrally with the packing rings. Each packing ring may be constructed in one piece or, as shown, by a number of separate rings. A block 18 is interposed between'the hoops 20 and 21 and the space between the packing rings is filled with lubricant supplied by a pipe passing through the member 12.
Patent GB-352766-A (GB)
Title: An improved method for making hollow cylinders from wood, sheet metal or the like material, encircled by hoops
IPC: B65D8/04
Filed: 1930-08-05
Abstract: 352,766. Ply - wood &c. cylinders. VLUGT, A. J. T. VAN DER, 10, Schiefbaanstraat, The Hague. Aug.5, 1930, No. 23440. [Class 145 (i).] In constructing a hollow cylinder of wood, sheet metal or other material, a sheet of material is rolled up and inserted within hoops 3, against which the inturned edges 5 are then forced until they abut, an overlapping strip 2 being provided along one edge.
Patent GB-1352946-A (GB)
Title: Semiconductor device with solder bond and process for its fabrication
IPC: H01L23/492
Filed: 1971-04-19
Abstract: 1352946 Soldering GENERAL ELECTRIC CO 19 April 1971 [9 March 1970] 23581/71 Heading B3R [Also in Division Hl] A tenacious, low resistance solder bond is obtained between a metal layer attached to the surface of a semi-conductor element and a support member by providing in the support member a capillary system opening into the interface between the support member and the metal layer, and extending to a location remote from the interface. When molten solder is supplied at the remote location capillary action draws it through the system to the interface, and across the interface itself, the quality of the bond thus obtained being due to the absence of oxidized or oxygen-rich solder within the capillary system. Any tendency for the solder to lose fluidity within the capillary system may be counteracted by differential heating. Various suitable capillary systems are disclosed. Fig. 3 shows a system of surface grooves 142 in a metal heat sink 134a, the grooves radiating initially from a common solder-feed point 142c and then extending parallel to one another through two successive interface areas 102a, 102b. Two semi-conductor elements may thus be bonded simultaneously to the heat sink 134a, visual confirmation that the solder has penetrated each capillary system being provided by the presence of solder in the visible parts of the grooves 142a on the sides of the respective elements remote from the common solder-feed point 142c. In a modification the grooves at the interface area are arranged to form a grid, there being "relief"  portions of the grid extending beyond the interface area and acting both as indicators of a good bond and as reserve sources of solder to ensure that any blocked capillaries within the interface area do not result in a non-uniform bond. In another capillary system (Fig. 9) a radial and annular combination of surface grooves 434, 436, 438 is fed with solder from the opposite surface of the heat sink 426 by a central aperture 428 extending through the thickness thereof. The annular grooves 436 are of smaller cross-section than the main radial grooves 434 to ensure preferential capillary attraction. Secondary radial grooves 438 have outer portions 441 extending beyond the interface area 402 to indicate the achievement of a good bond. This particular arrangement is described in conjunction with a transistor having an interdigitated emitter/base configuration. A thyristor mounting is also described. Fig. 11 illustrates a third capillary configuration in a heat sink, there being a solder-feed aperture 518 leading into capillaries 512 within the body of the heat sink which in turn supply capillaries 520 leading up to the interface with element 516. Embodiments are described in which the support member comprises a capillaried metal layer on a dielectric heat-conducting substrate, which may in turn be soldered to a heat sink by a similar capillary-feed method. Various materials are disclosed for the metal layers, solders and dielectric substrates.
Patent GB-911430-A (GB)
Title: Improvements in or relating to armoured shields for mine workings
Inventor: URSITZ JOZESF
IPC: E21D23/16
Filed: 1961-06-29
Abstract: 911,430. Mining shields. NIKEX NEHEZIPARI KULKERESKEDELMI VALLALAT. June 29, 1961, No. 23586/61. Class 85. A mining shield advanced hydraulically to a working face 50 comprises a series of elements X1, X2, X3 . . . Xn each having a base 2, a curved member 1 pivoted to the base and held by a prop 5, and a roof member 3 pivoted to the member 1 and held by a prop 4. The props 4, 5 are screw operated, the props 4 incorporating hydraulic means 16 permitting measurement of the roof load and collapse of the prop under excessive roof load. One set of alternate elements having edges 25 facilitating the collapse of the roof are connected to a bar 26, and the other set of elements having plates 17 hinged to the members 3 have hydraulic advancing rams 13 connecting the bases to the bar. The shield is moved up to the face by actuating the rams 13 to thrust the elements having edges 25 to the face and by expanding their props when positioned at the face. The plates 17 are then lowered, the props on the elements carrying the plates are slackened, and these elements pulled to the face by the rams.
Patent GB-237358-A (GB)
Abstract: 237,358. Haddan, A. J. H., (National Cash Register Co.). April 28, 1924. Cash regisfers; totalizing-counters.-In addition to the usual amount key banks the cash register has a single half-cent key placed in the transaction bank. When this key is not depressed the totalizers are laterally shifted with respect to the actuators so that the half-cent pinion, which is of only half the usual width, is out of the plane of its actuator. In " paid out " transactions the totalizer is shifted farther still in order to render all the pinions inoperative. As shown in a machine of the kind described in Specification 8119/15. the totalizers each comprise the usual pinions 140 and a narrow pinion 146 placed in cooperation with the transaction bank. This bank consists of a " paid-cut " key 36, a cash key 35 and a half-cent key 37 and controls a differential actuator having but one tooth 179 for each totalizer line. With the half-cent key depressed, actuation of the pinion 146 to the extent of one step occurs in the usual manner and transfers take place at every other step. If the cash key is depressed however, the resulting movement of the transaction differential mechanism effects through link 131, sector 163 and rack 162 the advance of a slide 160 sufficiently to cause through a cam slot 158 and pin 157 a lateral shift of the totalizer frame 142, 143 to the left to place the pinion 146 clear of its actuator 123. If the " paid-out "key is depressed, the consequent further movement of the slide and totalizer puts all the pinions clear of their actuators. The totalizer displacements are justified by a toothed member 176 carried by the totalizer frame and co-operating with teeth 178 on a collar fixed to the rod 144 on which the frame is mounted.
Patent GB-239065-A (GB)
Title: Improvements in and relating to tar separators
IPC: C10K1/02
Filed: 1924-10-07
Abstract: 239,065. James, R. W., (Lignojen Maschinen & Apparatebau Ges.). Oct. 7, 1924. Tar.-A tar separator comprises a casing 8 containing a number of grids 15. vanes 14, 17, and bell-shaped members 19, 20, 22. The vanes 14, 17 and the members 20 supporting exteriorly mounted perforated vanes 21 are keyed to a shaft 10 and are rotated relatively to the stationary bell members 19, 21 provided with ribs 18 and the grids 15 which are wheel-shaped and carry projections 16, Fig. 3. A sprinkler 23 may be provided to wash the gases, and the lower part 1 of the casing is formed with a compartment 3 for chemical purifying material, and a cooling jacket 28.
Patent GB-1150241-A (GB)
Title: A Method for the Production of Ribonucleoside-5'-Phosphates
IPC: C07H1/02
Filed: 1966-05-27
Abstract: 1,150,241. Ribonucleoside 51-phosphates. TAKEDA CHEMICAL INDUSTRIES Ltd. 27 May, 1966 [29 May, 1965], No. 23807/66. Heading C2C. Ribonucleoside 5<SP>1</SP>-phosphates are produced by reacting a ribonucleoside with an aliphatic ketone having 3 to 6 carbon atoms, or an aromatic aldehyde, and PCl 3  in the presence of water and oxygen, and subsequently hydrolysing the resulting product. Specified nucleosides are inosine, adenosine, cytidine and uridine. The ribonucleoside is preferably dissolved in a large excess of ketone and PCl 3  and water are then added in molar ratios of 10 to 100 of PCl 3 : 2 to 20 of water: 1 of ribonucleoside. The reaction is preferably carried out by first adding water and a little of the PCl 3  to the ribonucleoside solution, and then adding the remaining PCl 3  to form the 5<SP>1</SP> phosphate derivative in the presence of oxygen or air. The preferred reaction temperature is 0 to 10 C. The hydrolysis may suitably be performed by adding the product to ice-water, and then adding alkali until a pH of 1 to 2 is reached, and warming to about 60 C.
Patent GB-885101-A (GB)
Title: Conduit for the circulation of fluids and method for producing the conduit
IPC: F16L9/02
Filed: 1959-07-10
Abstract: 885,101. Stoves. SOC. CONTINENTAL DE PROCEDES DE SOUDURE A FROID SOUDFROID. July 10, 1959 [July 10, 1958; Aug. 5, 1958], No. 23839/59. Class 126 [Also in Group XXII] A top plate for a gas stove is made from channelled sheets 16 and 17 welded together along seams 22 to form gas supply pipes 23-26. The sheets are bent at right angles to the main panel partly along one side thereof to form a vertical panel 21 which carries the adjusting cocks 28. Connections 29 carry pipes leading to a thermostat and connections 30 carry the burners of the stove.
Patent GB-1515239-A (GB)
Title: Brake actuating apparatus for a multiple disc aircraft disc brake
IPC: F16D65/18
Filed: 1976-06-09
Abstract: 1515239 Multi-disc brakes; wear adjustment; pistons BENDIX CORP 9 June 1976 [30 June 1975] 23878/76 Headings F2E and F2T [Also in Division F1] Fluid pressure motor assemblies 56 for actuating a multiple disc aircraft brake 40, 42 are fitted in circumferentially spaced chambers 30 in a carrier 26 and each assembly 56 comprises a piston 75 having a skirt section 76 slidably carried in a cavity defined by a sleeve 64 and slidably carried on a tubular section 74, the piston 75 being responsive to pressurized fluid supplied to act on the annular end of skirt section 76, and adjust and reset apparatus 106, 116, 122, 124, 130 being coaxially arranged within the tubular section 74 but isolated as by seals 82, 83 from the pressurized fluid to prevent contamination thereof by particles of metal. As shown, each motor assembly 56 has an annular member 59 threadedly engaged in chamber 30 and receiving, preferably with press fit, the sleeve 64, the annular member 59 being formed with the tubular section 74. The piston 75 comprises a base section 78 provided with a mating block of heat insulation material 90 held in place by a retaining cap 92. The adjust and reset apparatus comprises a tubular member 124 within tubular section 74 and enclosing a radially deformable tube 122. A stem 106 extends coaxially through tube 122 and has a rectangularly shaped head 110 removably trapped in a recess (112) in the base section 78 of piston 75. The stem 106 has a threaded end 114 to receive a button 116 held in position by a locknut 120 and engaging the inner surface of tube 122. A compression spring engaging a washer 134 acts to retract tubular member 124, tube 122, stem 106 and piston 75 to an extent defined by a snap ring 136 secured to annular member 59. To actuate the motor assembly 56, pressurized fluid is supplied to act on the annular end of skirt section 76 via a passage 87, an annular chamber 86 and openings 84 in sleeve 64. The piston 75 and pistons 75 in the other motor assemblies 56 are moved to move a pressure plate 50 towards a fixed backing plate 36 to compress stators and rotors 42, 40 therebetween. With piston 75 move stem 106, tube 122, tubular member 124 compressing spring 130 until washer 134 engages a shoulder 142 on tubular section 74. If as a result of wear of linings 38 (on plate 36), 44 (on stators 40), 52 (on plate 50) the rotors and stators 40, 42 are not then fully engaged, the piston 75 will continue to move and with it stem 106 to cause button 116 to plastically deform tube 122 thereby compensating for wear of linings 38, 44, 52. The adjust and reset apparatus is not in contact with the pressurized fluid but is exposed to ambient air. This allows of easier disassembly of the apparatus.
Patent GB-1174708-A (GB)
Title: Arrangement for Lifting the Forme Cylinder and the Inking System in Rotary Printing Machines
IPC: B41F31/30
Filed: 1968-05-20
Abstract: 1,174,708. Printing apparatus. MASCHINENFABRIK MAX KROENERT. 20 May, 1968 [26 May. 1967], No. 23903/68. Heading B6C. In a rotary printing press having a pivotally mounted inking unit and a pivotally mounted forme cylinder unit sequential separation of the units from the impression cylinder is effected by a common lifting device. When lever 16 and shaft 14 are turned clockwise rods 13 move upwards, in consequence of being eccentrically mounted on shaft 14, and projections 17 and 18 abut on stops on swing arms 11 and 12, so as to first lift inking mechanism 5, which is mounted on arm 12, away from forme cylinder 4 mounted on arm 11 and then lift the forme cylinder 4 away from web B and impression cylinder 3. When lever 16 is moved anticlockwise they are returned in reverse order and springs 21 and projections 23 hold them in position. Projections 17, 18 and 23 and spindles 22, which are attached to springs 21, are mounted respectively on threaded sections on the rods 13 and by threaded nuts 33 and are axially adjustable relative to them.
Patent GB-929988-A (GB)
Title: Process for the preparation of boron trihalides and of intermediates therefor
IPC: C01B35/06
Filed: 1961-07-03
Abstract: A porous granular carbon containing mass suitable for treatment with a halogen below 600 DEG C. to yield boron trihalide is prepared by heating an oxygen containing boron compound, which contains water either combined or of crystallization, e.g. borax or boric acid, with a carbonaceous substance, at a temperature below the melting point of the boron compound.  The carbonaceous substance may be coal-tars, pitches, bitumens, mineral coals, carbon black, charcoal or coke.  If the carbonaceous substance has a melting point below that of the boron compound, it is heated above its melting point, the powdered boron compound is introduced into the liquid with stirring to obtain a pasty mass having a weight ratio of carbonaceous substance to boron compound of at least one which is continuously kneaded until homogeneous, and is then heated to not more than 450 DEG C. to dehydrate the boron compound and carbonize the carbonaceous substance.  Alternatively if the carbonaceous substance does not have a melting point below that of the boron compound, it is mixed mechanically with the boron compound until the weight ratio of carbonaceous substance to boron compound is at least two, and the mixture is stirred and heated to dehydrate the boron compound and release the volatile materials in the carbonaceous substance.
Patent GB-689329-A (GB)
Title: Improvements in or relating to magnetogram records
IPC: G11B5/82
Filed: 1950-10-03
Abstract: 689,329. Magnetic sound records. ASSMANN, GES., W. Oct. 3, 1950 [March 7, 1949], No. 24135/50. Class 40 (ii). A flexible magnetic record 1 is corrugated to provide guiding grooves 2 and comprises a mixture of magnetic material and non-magnetic synthetic material.