baber/WOPTO huggingface dataset:
Patent GB-891110-A (GB)
Title: Improvements in or relating to methods of dividing hard objects
IPC: B28D7/04
Filed: 1960-10-21
Abstract: 891,110. Cutting hard materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 21, 1960 [Oct. 24, 1959], No. 36184/60. Class 124. Hard objects, such as ceramic tubes or rods having a small cross-setional dimension relative to their length, are divided into pieces by means of a sawing or cutting operation, the objects being placed together parallel to one another in a vessel together with a liquid which is solidified before the operation proceeds. Ceramic tubes 2 having their ends closed by wax plugs 4 are placed into a paper container 1. The container is filled with water, cooled to -15‹C., and the resultant coherent mass is divided by a circular saw. The tubes may be spaced apart by cardboard members. Carbon tetrachloride may be used as the material and the plugs omitted.
Patent GB-415394-A (GB)
Title: Improvements in and relating to electric converter systems
IPC: H02M7/51
Filed: 1932-12-21
Abstract: 415,394. Converting. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Willis, C. H. ; 184, Prospect Avenue, Princeton, New Jersey, U.S.A.) Dec. 21, 1932, No. 36238. Convention date, Dec. 22, 1931. [Class 38 (ii).] In an electric valve converting system, a polyphase inductive network, represented in the Figure as a regular hexagon 13, and a group of valves, shown arranged in ring-form outside the hexagon, connect a D.C. circuit 10 to an A.C. circuit 11. The valves are successively rendered conducting and nonconducting by grid control impulses derived from a transformer 74 energized in a twelve-phase manner from a controlling frequency circuit 71 acting through a delta -gamma transformer 72 and a gamma-gamma transformer 73. To counteract the effect of bad power factor upon the waveform of the converted current a second group of valves shown arranged in ring-form inside the hexagon 13, and so connected as to short-circuit the polyphase network through a reactance 66, are successively rendered conducting and non- conducting in a sequence displaced in phase from the first group ; the phase displacement being varied according to varying power-factor conditions. In a modified arrangement the valves of the second group introduce energy from a second D.C. source, the voltage of which may be varied to secure the desired improvement of the wave form. Specifications 409,713 and 411,145 are referred to.
Patent GB-1155322-A (GB)
Title: Polymeric Emulsifiable Ointment Bases.
IPC: A61Q19/00
Filed: 1966-08-15
Abstract: 1,155,322. Ointment bases. FARBWERKE HOECHST A.G. 15 Aug., 1966 [14 Aug., 1965], No. 36457/66. Heading A5B. [Also in Division C3] Ointment bases are prepared by emulsifying with water emulsifiable, wax-free, copolymer gels prepared by dissolving in a hot oily solvent a copolymer of ethylene and a compound of formula CHR=CH 2  where R is a Garbalkoxyamine, acyloxy or sulphonamide group of formula a -NR 4  COR 5 , -NR 1  COOR 2 , -OCOR 3  or -SO 2 NH 2  where R 1  is hydrogen or alkyl and R 2 , R 3  R 4  and k 5  are alkyl, and cooling the solution obtained to below the drop point. Specified oils are paraffins, peanut and castor oils, isohexadecyl and acetyl dodecyl alcohols, isopropyl myristate, oleyl oleate, fatty alcohol polyglycol ethers and perhydrosqualene. In examples bases are prepared from water and gels comprising (2 and 3) ethylene/N-methyl-N-vinyl methyl carbamate copolymers and liquid paraffin; (4 and 6) ethylene/vinyl acetate copolymers and liquid paraffin; and ethylene/vinyl N-methyl acetamide copolymers and (5) fatty alcohol polyglycol ethers and (7) isopropyl myristate.
Patent GB-797488-A (GB)
Title: Gas turbine rotor
IPC: F01D5/22
Filed: 1956-11-29
Abstract: 797,488. Elastic-fluid turbines. MASCHINENFABRIK OERLIKON. Nov. 29, 1956 [Dec. 30, 1955], No. 36572/56. Class 110 (3). The high-pressure end of multi-stage gas turbine rotor comprises at least one row of unshrouded blades 2 providing only a small degree of reaction, whereas the remaining rows of blades 3 are provided at their tips with shrouds 4 and have a high degree of reaction. The shrouds 4 may extend wholly circumferentially around each row of blades, or they may be in segments surrounding groups of blades of each blade row. The object of the invention is to dispense with blade shrouds at the high pressure end of the turbine since these shrouds tend to intercept any impurities such as vanadium pentoxides or sodium oxides contained in the gas stream whereby the balance of the rotor is disturbed. With only a small degree of reaction in the high pressure stage, the pressure drop across the blade row is reduced and the necessity of a blade shroud is avoided.
Patent GB-948674-A (GB)
Title: A method for taking an impression from a stencil or a plate in an addressing machine and an addressing machine for carrying out this method
IPC: B41L47/18
Filed: 1961-10-12
Abstract: 948,674. Addressing machines; tripping. J. H. STIELOW. Oct. 12, 1961 [Oct. 12, 1960], No. 36599/61. Headings B6C and B6D. In an addressing machine in which plates or stencils 27 are fed from a supply magazine 4 past a a sensing head 14 and an impression machine 32 to a receiving magazine 6, the dwell period of the feed is shorter than the time taken by an operating cycle of the machine 32 and the feed is suppressed when operation of the machine 32 is initiated to print from a plate &c. detected by head 14. As shown in Fig. 2, a motor 79 drives through a single-revolution clutch 46 a shaft 33 which operates the impression machine, shaft 33 also carrying a cam 42 operating a switch 49 which is closed only when the machine 32 is inoperative. Switch 49 is in the current supply to a solenoid 41 which, when energized, pivots upwardly a pawl 62 carried on a member 35 reciprocated horizontally by linkage 36, 37 actuated by motor 80. When the pawl is elevated it feeds a plate 27 forwardly at each reciprocation. When the machine 32 is operating, the pawl is retracted and the feed is suppressed. Switch 49 also controls solenoid 30 for stepping the plate support in the receiving magazine 6 and, if desired, a solenoid 42 lowering the head 14 into sensing position. If the head senses a plate to be printed from (the head is two feed steps upstream of the machine 32), a pulse is fed to a store 84 and two feed cycles later, the store causes energization of the solenoid of clutch 46 so that an impression cycle is initiated, the cam 48 and switch 49 suppressing the feed until the impression cycle is finished. The arrangement may be modified to cause a plurality of impressions to be taken from the selected plate before the feed is restarted. Motors 79, 80 run at different speeds. In a modified form (Figs. 1 and 3-7, not shown) a single motor drives a gear-box having two outputs of different speeds one for the plate feed and one for the impression machine.
Patent GB-170816-A (GB)
Title: An improved rotary pocket fan
IPC: F04D25/08
Filed: 1920-12-31
Abstract: 170,816. Soc. Industrielle de Celluloid. Oct. 23, 1920, [Convention date]. Addition to 160,752. Screw fans.-A pocket folding fan of the kind described in the parent Specification is driven by the thumb-pressed rack 1 engaging the pinion 18, the shaft 17 of which carries loosely the spur-wheel 19 with the attached disc 41. The periphery of the disc 41 is shaped as shown in Fig. 2, and is enclosed by a flanged cover 40 secured to the pinion 18. Balls 45 rest in the cam-shaped slots thus formed between the disc and the cover. When the fan is at rest the balls remain in the space at the end of the slots, but when the rack is operated the pinion 18 and cover 40 revolve and roll the balls to the narrow part of the slots, thus causing the balls and disc to act as a clutch to rotate the fan. During the return movement of the rack the balls roll to the end of the slots leaving the fan free. The spring for returning the rack is secured to the cross-bar of the slideway and to a cross-rod attached to the slide.
Patent GB-800000-A (GB)
Title: Improvements in or relating to timebase circuits
IPC: H04N3/237
Filed: 1956-11-30
Abstract: 800,000. Cathode-ray tube operating circuits. FERNSEH GES. Nov. 30, 1956 [Nov. 30, 1955], Class 40 (7). In a cathode-ray tube (C.R.T.) line deflection circuit (see Fig. 1) line output transformer 4 includes a winding 8 providing in conjunction with rectifier 9 and smoothing capacitor 10 a D.C. voltage to a shift circuit, comprising ganged potentiometers 11, 12 with oppositelymoving sliders and by-pass capacitor 13, for line deflection coils 7. A linearizing diode 5 and E.H.T. flyback rectifier 15 whose filament supply is obtained from winding 16, are included. In a modified circuit arrangement (see Fig. 2, not shown) a single shift potentiometer and two associated rectifiers tapped on to the line transformer deflection winding are used.
Patent GB-951369-A (GB)
Title: Diaphragm valves
IPC: F16K7/12
Filed: 1962-09-28
Abstract: 951,369. Valves. GRINNELL CORPORATION. Sept. 28, 1962 [Oct. 10, 1961], No. 36841/62. Heading F2V. The moving closure member of a diaphragm valve is formed by a combination of a moulded rubber or rubber-like backing 28, Fig. 5, and a moulded diaphragm 30 of inert plastic material e.g. P.T.F.E. the sides of which extending from the central thickened portion 60 are thin enough to permit of flexing when the valve is in the open position shown, wherein the central parts of the backing 28 and diaphragm 30 are spaced. In the closed position the latter are in complete contact, the backing 28 being stretched by the actuating mechanism and squeezing but not stretching the diaphragm 30 against the seat. In its unstressed condition the diaphragm 30, Fig. 1, extends across the flow path to contact the seat. The actuating mechanism includes a lost-motion connection in which a stud 56, Fig. 5, has its head embedded in the central thickened portion 60 of the diaphragm 30 ; the shank 62 extends through an opening 66 in the backing 28 and is threaded into a nut 70 slidable in a cavity 68 in the compressor 46, the nut being prevented from rotation by a screw 72, whereby the backing 28 is not compelled to remain in intimate contact with the diaphragm throughout the opening and closing movements of the valve. The actuating mechanism consists of a hand wheel 52, Fig. 1, which rotates a bush 80 threaded to a shaft 78 which is prevented from rotating by arms 88 engaging webs 90. A hub 92 which connects the spindle 78 to the compressor 46, via pins 76, embodies a recess 94 leading to the cavity 68, a heavy disc 96 in the bottom of the recess 94 being engaged by the shaft 78 when the valve is closed.
Patent GB-846958-A (GB)
Title: Improvements in the construction of crate and like boxes
Inventor: SMITH JAMES HENRY
IPC: B65D6/36
Filed: 1957-11-26
Abstract: 846,958 Carpenters' joints. GREEN BROS. (BRANDON) Ltd. Nov. 26,1958 [Nov. 26, 1957], No. 36851/57. Class 20(2) [Also in Group XVII] An internal corner piece 2 for a crate which comprises a number of parallel, spaced slats 1 has projections 3 adapted to space the slats and define their positions when the crate is constructed. The slats 1 may be nailed to the corner pieces 2 and /or binding wire 6 (not shown) may be used.
Patent GB-368714-A (GB)
Title: Improvements in magnetos
IPC: H02K21/38
Filed: 1930-12-08
Abstract: 368,714. Inductor magnetos. WICO ELECTRIC CO., Phelon Avenue, West Springfield, Massachusetts, U.S.A. Dec. 8, 1930, No. 36934. Convention date, Dec. 19, 1929. [Class 35.] Mounting rotors; driving magnetos.-An ignition magneto, preferably of the inductoralternator type, is mounted on a hollow stud surrounding a driving shaft, such as the crank shaft of the engine, which is connected with the magneto rotor by a loose coupling, so that imperfect adjustment of the driving shaft does not affect the magneto. In the arrangement shown the stud 12 is adjustably secured to a plate 10 by screws 26 and on it is journalled a sleeve 14 carrying the rotor 13. The latter may be shaped as shown in Fig. 3 to co-operate with the magnet polepieces 18. The shaft C passes through the stud 12 and carries a pin 16 engaging with a notch 15 in the sleeve 12 so as to drive it. The stud 12 is lubricated by a wick 30 dipping into oil in the bottom of the casing A to which the plate 10 is secured.
Patent GB-1192198-A (GB)
Title: Improvements in or relating to Circuit Arrangements for Telecommunication Systems.
IPC: H04M19/08
Filed: 1967-08-11
Abstract: 1,192,198. Exchange systems. SIEMENS A.G. 11 Aug., 1967 [12 Aug., 1966], No. 36983/67. Heading H4K. In an arrangement in which a circuit element S11 or S12, Fig. 4, is to be operated over a line VL which has self-capacitance, by the application to the line of square pulses or of sinusoidal current, the element to be operated is determined by closure of a contact C1 or C2, Fig. 3, at the far end of the line to connect one of two oppositely poled rectifying circuits. When contact d is closed and current flows in the direction U o  to a, capacitor C11 charges and transistor T1 is cut off by the volt drop across rectifier G3 until charging is complete whereupon G3 is back-biased and condenser C11 discharges through transistor T1 and element S11 when the voltage in the base-emitter circuit is sufficient to overcome the threshold provided by a four-layer diode V1. Element S12 responds in a similar manner to closure of contact c2. Circuit elements S21 and S22 may also respond at the far end of the line to closure of contacts C1 and C2. The arrangement may be used for detection of a looped calling line connected to a uniselector.
Patent GB-986907-A (GB)
Title: A method of preparing a new hypotensively effective 12-methylmercapto deserpidine
IPC: C07D459/00
Filed: 1962-10-01
Abstract: The invention comprises 12-methylmercaptodeserpidine of m.pt 220-222 DEG  C., and a process for its preparation wherein the methyl ester of 2 - b  - carbomethoxy - 3 - a  - methoxy - 4 - b  - acetoxy - 6 - b  - formyl - cyclohexylacetic acid is condensed with 7-methylmercapto-tryptamine, the Schiff's base formed is reduced with sodium borohydride in methanol giving simultaneous cyclization of the lactum ring and deacetylation; the thus formed methyl ester of 2,3-seco-3-oxo-12-methylmercapto deserpidic acid is esterified with 3,4,5-trimethoxybenzoyl chloride in pyridine (giving 2,3-seco-3-oxo-12-methylmercapto deserpidine) and cyclized by heating with phosphorus oxychloride; the 3,4-dehydro - 12 - methylmercapto deserpidine obtained is then converted to a quaternary salt such as the perchlorate and reduced with zinc in the presence of a strong acid.
Patent GB-901847-A (GB)
Title: Carbon articles
Inventor: JOHNSON WILLIAM
IPC: G21C3/06
Filed: 1957-11-28
Abstract: The porosity of a carbon or graphite article, e.g. a tube, is reduced by impregnating with furfuryl alcohol and then resinifying and carbonizing the furfuryl alcohol.  The furfuryl alcohol may contain 0,05-1,0% of hydrochloric or nitric acid as resinifying agent. Partial resinification may be effected before impregnation by refluxing in air for a period of 20-50 hours or by treatment with 0,01-0,02% hydrochloric or nitric acid.  The furfuryl alcohol may contain suspended carbon, e.g. lamp black. The treatment may be performed first with carbon in suspension and then repeated without. Impregnation may be effected first through one face and then through an opposite face.  Impregnation may be effected at an initial pressure of 10 microns of mercury and a final pressure of 100-500 p.s.i.  After impregnation, resinification may be commenced at room temperature in an atmosphere of furfuryl alcohol or mineral acid gas and completed by heating at a temperature of 40 DEG -220 DEG C. Carbonizing may be effected by heating to a temperature of 1000 DEG -1350 DEG C. in an inert atmosphere or packed in lamp black or powdered graphite. Graphitizing may be effected by heating to 2800 DEG C.  The impermeability may be reduced to 6,3X10-7 cm2/sec. Example are given.
Patent GB-1022853-A (GB)
Title: Vtol aircraft with lifting jet installation
IPC: B64C29/00
Filed: 1962-10-03
Abstract: 1,022,853. V.T.O.L. aircraft. FOCKE-WULF G.m.b.H. Oct. 3, 1962 [Oct. 12, 1961], No. 37434/62. Headings B7G and B7W. A V.T.O.L. aircraft has a pressurized fuselage 2, 3 with flooring 4 connected to part 3 by crossframes 5 and supports via mounting 11, which may be flexible or resilient, vertical thrust units 1, each of which comprises a tip turbine supplied with gas from the forward propulsion jet engines 19 through ducts 18. The rotors draw in air through lateral openings 6 which are closed during forward flight by covers 7 as are the outlets 8 by covers 10. In Figs. 2-4, not shown, a single or double row of jet turbines produce the upward thrust. The lifting jets may be deflected for control and horizontal movement during hovering. Insulating material (against heat, sound, vibration and fire) can be placed under floor 4. A passage for pipes, wires &c. may be formed between the fuselage and the thrust units 1, Figs. 3, 4, not shown.
Patent GB-835043-A (GB)
Title: Improvements in or relating to recovery of radioactive caesium
Inventor: WALKER HAROLD AUGUSTUS
IPC: B01J41/04
Filed: 1956-12-07
Abstract: The phosphotungstate of radio-active caesium is converted into a water-soluble salt by bringing an aqueous ammoniacal solution of the phosphotungstate into contact with a strongly basic anion exchange substance, whereby phosphorus and tungsten are adsorbed, separating the solution and neutralizing it with a mineral acid. The anion exchange substance may be prepared by copolymerizing styrene and a divinyl hydrocarbon, treating with an aldehyde and halogen acid, and reacting the haloalkylated copolymer with a tertiary amine as described in Specification 654,706.  Caesium phosphotungstate obtained from a solution of uranium fission products as described in Specification 736,429, may be dissolved in sodium hydroxide solution, reprecipitated with sulphuric acid, dissolved in aqueous ammonia and passed through a column of anion exchange resin.  The effluent solution is evaporated to reduce the volume, neutralized with sulphuric acid, and evaporated to dryness, the radio-active caesium sulphate being melted into a capsule.
Patent GB-1003644-A (GB)
Title: Frame for areal structural members, in particular for windows, doors and the sashes thereof
IPC: E06B3/22
Filed: 1962-10-08
Abstract: 1,003,644. Window frames and sashes. L. HERMANN. Oct. 8, 1962 [Oct. 13, 1961], No. 37952/62. Headings E1J and E1R. Single (Figs. 2, 3) or double (Fig. 1) paned windows have extruded plastics sashes and frames, of hollow grid-like cross-section. In the embodiment of Fig. 1, the sash 1 has a hollow abutment 9, and a hollow bolted-on ledge 16 to retain the panes 2. The sash and frame both have stop flanges, 10 and 15, with sealing strips 12 and 14, respectively, and a rain-water ledge 23 is provided on the sash. In the embodiment of Fig. 2, a W-shaped ledge 27 and a condensate channel 29 are provided on the sash, and a hollow abutment 33 on the frame. In the embodiment of Fig. 3, hollow sealing strips 48, and a double-grooved rain-water ledge 36 are provided. A metal strip 37 (Fig. 7) may be employed to secure the ledge 35 (Fig. 2) to the sash. Suitable frame, sash and sealing strip materials are indicated in the Specification, which states that the frame may also be used as a door frame.
Patent GB-1196864-A (GB)
Title: Improvements relating to Vibrators.
IPC: B06B1/16
Filed: 1968-08-09
Abstract: 1,196,864. Vibrators. WACKER WERKE K.G. 9 Aug., 1968 [12 Aug., 1967], No. 38165/68. Heading F2X. A vibrator has an electric motor mounted within a housing 1 and provided with a stator 2 and an axially adjacent rotor 4 mounted on a shaft 3 fixed with respect to the housing and having a mass 6 eccentrically attached thereto. The rotor and/or stator may be laminated.
Patent GB-1334419-A (GB)
Title: Explosive composition
IPC: C06B25/34
Filed: 1971-08-17
Abstract: 1334419 Explosive compositions WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 17 Aug 1971 [2 Sept 1970] 38440/71 Heading C1D An explosive composition comprises 60-85 parts by weight of a crystalline high explosive embedded in at least 15 parts by weight of a binder containing 30-70 parts by weight of an ester of polyvinyl alcohol and 70-30 parts by weight of a liquid organic nitrate plasticizer. The high explosive may be RDX, HMX or PETN. Suitable esters are polyvinyl acetate and polyvinyl nitrate, which may be stabilized with 2-nitrodiphenylamine. The plasticizer may be pentane trinitrate, hexane trinitrate, diethylene glycol dinitrate, or nitroglycerine. Other ingredients are solid paraffin and lead stearate as processing aids. The constituents may be mixed in the presence of water or alcohol which is then removed by heating under vacuum. Hollow charges may be moulded from the composition.
Patent GB-1310589-A (GB)
Title: Reduction of iron ore
IPC: C22B1/24
Filed: 1970-08-10
Abstract: 1310589 Reducing iron ore pellets KOBE STEEL Ltd 10 Aug 1970 [18 Aug 1969] 38459/70 Heading C7D Reduced iron ore pellets are produced by forming green pellets from iron ore fines, solid reductants and binders; drying and pre-heating the pellets on a travelling grate, using waste gases from a rotary kiln; and reducing the pellets in the rotary kiln using the internal solid reductants and also pre-heated externally applied solid reductants added at the junction of the travelling grate and rotary kiln. The reductants may be coke or coal; the binder may be bentonite, calcium, chloride, calcium hydroxide, calcium carbonate, pitch or lignite; and the ore may be haematite or magnetite. The travelling grate may pass through three zones; a drying zone, a dehydrating zone and a pre-heating zone, at temperatures of 230-250C, 370-400C and 1000-1100 respectively. Auxiliary burners may be used to heat the waste gases to the required temperatures.
Patent GB-1074238-A (GB)
Title: Improved saw chain
IPC: B27B17/02
Filed: 1964-09-22
Abstract: 1,074,238. Sawing. OMARK INDUSTRIES Inc. Sept. 22, 1964 [Sept. 23, 1963], No. 38625/64. Heading B5L. A saw chain comprises side links 15, 16 pivotally connected to the forward and rearward portions of centre links 12, the side links including cutter links and having adjacent ends provided with a plurality of gear teeth 42 forming segments concentric with the pivot axes of the side links and meshing with each other to provide opposite pivotal movement of longitudinal adjacent side links with respect to the centre drive link pivotally connected to the adjacent side links. The centre links have the distance between their pivots shorter than that between the pivots of the side links to leave spaces 48 for receiving the teeth 50 of the sprocket 44 of a chain saw machine, the teeth thereby acting along the longitudinal line containing the axes of the pivots; each centre link also has a projection 20 which is received in the space between the teeth of the sprocket and slides along the groove in the cutting bar of the machine. Alternate cutter links are left and right handed and each link has a depth gauge element 26 and a cutter element 28 formed by a curved shank portion 32 and top plate 34, the front edges of which are provided with a cutting edge 35. The ends of the side links 15, 16 are formed with the gear teeth 24 which, together with the arrangement of the sprocket teeth and gaps 48, prevent undesirable movements of the links as they pass over the sprocket particularly if the cutter links are of the type which are sharpened by a grinding wheel as they pass over the sprocket.