baber/WOPTO huggingface dataset:
Patent GB-1150121-A (GB)
Title: Method for manufacturing detonating fuse or fuse cord
IPC: C06C5/04
Filed: 1966-11-29
Abstract: 1,150,121. Detonating and fuse cords. ENSIGN-BICKFORD CO. 29 Nov., 1966 [3 Dec., 1965; 7 March, 1966], No. 53315/66. Heading F3A. Elongated detonating fuse or fuse cord comprises a core of particulate high explosive material and a covering circumscribing the core, the core having a core load less than the critical core load necessary for initiating explosion or propagating an explosive signal, or, a core load which is slightly above the critical level and thereby lacking in sensitivity or explosive strength. The cord is rendered fully active by decreasing the particle size of the explosive material whilst maintaining a constant core load. To make the cord, coarse granules 32 of an explosive such as PETN, RDX, HMX, TNT or tetryl are treated with anti-static wetting agents such as saturated, long chain or fatty alcohol sulphates and fed with a centre thread 36 into a hopper 34. The explosive core 40 so formed is wrapped with paper tape 42 and bound with yarn 58. A coating of plastics material is then applied and the cord passed between rollers to crush the coarse granules of explosive before finally coating the cord with wax or wrapping it in a layer of textiles.
Patent GB-1152739-A (GB)
Title: An Improved Variable Speed Gear.
Inventor: BARTLE JAMES BERNARD
IPC: F16H15/12
Filed: 1966-11-30
Abstract: 1,152,739. Variable speed friction gear. POLLARD BEARINGS & POWER TRANSMISSION Ltd. 9 Jan., 1968 [30 Nov., 1966], No. 53627/66. Heading F2D. A frusto-conical or disc-shaped driving member 27 is gripped between shallow conical driven and idling discs 30, 29 urged together by disc springs 32, the driving motor 18 for member 27 being slidable on pillars 14 on manual actuation of a screw-threaded spindle 19 to move member 27 towards or away from the centres of discs 29, 30.
Patent GB-1449658-A (GB)
Title: Cooling and annealing lehr and a method of operating same
IPC: F27B9/02
Filed: 1973-11-19
Abstract: 1449658 Annealing lehr SMIT NIJMEGEN BV 19 Nov 1973 [21 Nov 1972] 53668/73 Heading C1M [Also in Division F4] A lehr for heating and/or cooling of articles (e.g. of glass) comprises a plurality of separate sections, an air permeable conveyer (e.g. of steel mesh) for passing the articles successively through the sections, a fan in each section for circulating air down along the walls parallel to intended direction of travel of the articles and up through the conveyer transverse to said direction of travel, an air inlet and vent which are both provided with valves and a control means for operating a desired valve in response to a measured temperature in a section. Heating or cooling elements may be provided in one or more sections. In Fig. 5 a valve 14 is provided in the air inlet to fan 7 carried on shaft 12 and valve 15 in the air exhaust both valves being controlled by control element 16. In operation the controls are set so that the quantities of air sucked in and vented are unequal whereby a pressure gradient is set up between sections and a longitudinal air flow thus established. The control signal is preferably made up by measuring the temperature in a section leading in the direction of travel of the articles through the lehr and comparing this value with a set point value.
Patent GB-1213636-A (GB)
Title: Switching circuit
IPC: H01L27/06
Filed: 1967-11-27
Abstract: 1,213,636. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 Nov., 1967 [30 Nov., 1966], No. 53819/67. Heading H1K. [Also in Division H3] The Specification describes an integrated circuit construction of a switching circuit (see Division H3). A control circuit (Fig. 6a, not shown) includes a four region transistor N 1 , P 2 , N 0,  P 1  (Figs. 6b and 6c), a junction and an insulated gate field effect transistor P 3 , No, P 1 ; P 3 , N 0 , P 4 ; resistors 606, 607 and a Zener diode 608 made by diffusion processes on a silicon substrate 618. Contacts 601-605 are made through windows 612-617 formed in an oxide layer 619. In an output circuit (Fig. 7a, not shown) two pairs of PNPN transistors are connected in parallel between an input terminal 700 (Fig. 7b) and two output terminals 701 and 702. Connections from the input 700 are made via windows 715 and 716 to the common connected emitters P 1  and collectors N 3  of the transistors. The collector N 1  of one PNPN transistor (706) is connected via the common output terminal 701 to the emitter P 4  of another PNPN transistor (708) similarly the collector N 2  of a further PNPN transistor (708) is connected via the common output terminal 702 to the emitter P 5  of another PNPN transistor (709). A junction transistor N 0 P 7 N 4 , where N 0  is a silicon layer (Figs. 7c and 7d, not shown), on which the transistors are formed, is spaced laterally from the PNPN transistors so that its base P 7  cannot collect minority carriers that are introduced into the base layer (No) of any PNPN transistor.
Patent GB-1294336-A (GB)
Title: High strength corrosion resistant steel
IPC: C22C38/52
Filed: 1969-11-04
Abstract: 1294336 Martensitic stainless steel CARPENTER TECHNOLOGY CORP 4 Nov 1969 [27 Nov 1968] 54091/69 Heading C7A Corrosion resistant martensitic stainless steel comprises:- the balance, apart from incidental impurities, being Fe; wherein (1) any C above 0À03% is stabilized by the addition of one or more of 10Î%C of Nb, 5Î%C of Ti and (5-10)x%C of Ta, V and/or Zr, (2) the Nieq, calculated as %Ni+ %Cu + %Mn + 30Î%C* +30Î%N + %Co, 2 3 (wherein C* is unstabilized C when the C content is less than 0À03%) is 4À37-10%, (3) the Cr e.g., calculated as %Cr+%Mo+3/2%Si is 14-18À5% and (4) the Cr e.g. and Ni e.g. are so related that for Ni e.g. 4À37% the Cr e.g. is no more than 16%, for Cr e.g. 16-85% the Ni e.g. is 4À37-8À6%, for Cr e.g. of 14% the Ni e.g. is no more than 10% and as the Cr e.g. increases from 14-18À5 the max. Ni e.g. decreases from 10% to 8À6%. The alloy may be annealed at 1700-2100F., water quenched, aged at 800- 1000F. and air cooled.
Patent GB-1075980-A (GB)
Title: Apparatus for feeding rayon cake wrapping nets automatically into automatic wrapping machine
IPC: B65B43/42
Filed: 1965-12-21
Abstract: 1,075,980. Packaging machines; pneumatic conveyers. ASAHI KASEI KOGYO KABUSHIKI KAISHA. Dec. 21, 1965 [Dec. 24, 1964], No. 54100/65. Headings B8A and B8C. Tubular wrapping nets B are fed into an automatic wrapping machine, preferably that disclosed in Specification 1,068,100, by placing them in a mouth 111 and applying a vacuum to a chamber 126, mounted about a perforated tube 126a, to draw the nets along tube 112 so that the first net rests on a valve 141; the second net is then pressed against the side of the tube and retained there by a piston 131 so that on removing the vacuum, connecting a source of compressed air to a chamber 124, and opening the valve 141, the first net only is blown into a cylindrical guide 150 and thence into a lower head A<SP>1</SP> of the wrapping machine. The guide 150 is constructed to allow one side 154 to swing open so that the lower head A<SP>1</SP> may move away laterally with the net projecting from its top.
Patent GB-1469847-A (GB)
Title: Mould for the manufacture of plaster pieces
IPC: B28B3/02
Filed: 1974-12-18
Abstract: 1469847 Mould construction RHONEPROGIL SA 18 Dec 1974 [18 Dec 1973 29 Nov 1974] 54694/74 Heading B5A A plaster panel 7 (Fig. 2) (e.g. of phosphogypsum) having tongued and grooved edges, is cast in a mould comprising opposing vertical walls 2 sandwiching neoprene or silicone edge strips 3 and metal spacers 8. When a pressure force 5 is applied to the walls 2, the walls move relatively closer and the strips 3 are deformed to seal the mould; on removal of the pressure force 5 after casting, the strips 3 return to their original shapes to spring the walls 2 away from the plaster. The moulds are built up in banks (Fig. 4) on a fixed base 11, and stripping is aided by using walls 2<SP>1</SP> that are normally bowed, but are flat during moulding. The edge strips 3 can include polished metal inserts that define projections 4 (Fig. 2), or can comprise a sealed plastics jacket filled with a compressible fluid. Alternatively, two such jackets per strip are used, with one sealing the the walls 2 and the other forming the projection 4; the jackets are pneumatically or hydraulically inflated and deflated to effect moulding and springing apart of the mould walls. Finally the strips 3 can comprise a mechanic device deformable by a piston and cylinder.
Patent GB-1483345-A (GB)
Title: Ticket issuing machines
IPC: G07B5/08
Filed: 1974-11-20
Abstract: 1483345 Ticket issuing machines CONTROL SYSTEMS Ltd 20 Nov 1974 [28 Nov 1973] 55138/73 Heading G4T In a machine for issuing tickets, data is recorded magnetically on a ticket and is then read and compared with data which the record head was intended to impart to the ticket; if the data correspond, the ticket is issued; if the data do not correspond, the ticket passes to a reject receptacle and a second ticket is passed to the record head for recording, recorded data then being read and compared with the record head data; if correspondence is found, the second ticket is issued; if the data still do not correspond, the machine is disabled. In the arrangement shown, correspondence of data concerning the first ticket results in a pass signal on line 14, which signal has no effect on memories 1 and 2 and which passes directly via lines 16, 17 to the ticket issue solenoid. Non-correspondence of data concerning the first ticket results in a fail signal on line 12, which signal sets the Q outout of memory 1 to enable AND 3 and thus cause a second ticket to be passed to the record head. Correspondence of data concerning the second ticket results in a pass signal on line 14 with consequent ticket issue and resetting of the Q output of memory 1. Non-correspondence of data concerning the second ticket results in a fail signal on line 12, which signal clocks the set Q output of memory 1 to memory 2, sets the Q output of memory 2 and thus cuts off the electric power supply to the machine. When the fault has been corrected and current is again supplied to the machine, a switch may be manually operated to apply a reset signal to line 15, so that AND 4 will be enabled (when the first pass signal is received on line 14) to reset memory 2 via line 13.
Patent GB-1247167-A (GB)
Title: Animated toy-figure
IPC: A63H3/31
Filed: 1968-11-21
Abstract: 1,247,167. Animated toy. COMPAGNIE PETITCOLLIN and R. MENDIGAL. 21 Nov., 1968 [2 Feb., 1968], No. 55284/68. Heading A6S. A toy figure has a deformable arm 1 connected by a hollow flexible tube 2 to a bellows 4 bearing against the abdomen. Squeezing the arm causes the bellows to rotate a lever 6 fixed to the leg 7 and thus causes the latter to rotate about axis 8. The bellows can also be used to move any other movable part of the toy figure, by adaptation of the construction.
Patent GB-1174669-A (GB)
Title: Stabilized Solvent System
Inventor: BROWN WINSTON EARL
IPC: C07C/
Filed: 1967-12-07
Abstract: 1,174,669. Stabilized chlorinated hydrocarbons. DOW CHEMICAL CO. 7 Dec., 1967, No. 55622/67. Heading C5D. A stabilized saturated aliphatic chlorinated hydrocarbon solvent composition contains, as inhibitor against metal-induced deterioration, 0À01-15% by volume of dioxene or dioxadiene or mixtures thereof. The chlorinated hydrocarbon solvent preferably has 1 or 2 carbon atoms and from 1 to 6 chlorine atoms, or mixtures of such compounds. 2 to 7% of the stabilizer, by volume is usually present; other stabilizers may also be present without materially affecting the system, for example, dioxane, nitroalkane, epoxides, non-primary alcohols, tertiary alkyl amines and/or alkanolamines. Solvents specified are methyl chloroform, methylene chloride, chloroform, carbon tetrachloride, 1,1- and 1,2-dichlorethane, 1,1,2-trichlorethane, and 1,1,2,2- and 1,1,1,2 - tetrachlorethane. The stabilizers not only prevent corrosion when the solvent is in contact with metals, especially aluminium, iron and zinc, but they remain in the solution when the solvent is cleaned by carbon absorption technique.
Patent GB-1499509-A (GB)
Title: Light emitting diode display devices
IPC: H01L25/075
Filed: 1974-12-24
Abstract: 1499509 Matrix displays SONY CORP 24 Dec 1974 [28 Dec 1973 21 Nov 1974] 55675/74 Heading G5C [Also in Division H1] In a display device, LED's 12 are retained in recesses in a layer 2 on a substrate 1 and are electrically connected by portions of aconductive layer 4 which extend over the recesses. The device comprises an insulating substrate 1, a plurality of LEDs with their junctions perpendicular to the substrate, Cu layers 2, 3, Ni and Zn-S-Ni layers 4, 5 and Sn layer (23) Fig. IF (not shown) on layer 4. The recesses are formed by etching layers 2, 4 leaving the edges of the Ni layers projecting. The Sn layer is then added. Apertures are also etched in the layers 3, 5 through which the LEDs are secured. After the LEDs are inserted, flux is applied to the tin layer which is then alloyed with the LED electrodes. The tin layer may be added after the LEDs are inserted. The LEDs are arranged in a figure of eight with two diodes in each arm of the array. The device is finally embedded in resin. A diffusing layer may be applied to the top surface of layer 1. In another embodiment, the Cu layer 2 is replaced by a self-supporting Fe layer on which Cu is deposited. The layers are etched to form apertures with an array of teeth protruding into the diode space. A black ceramic is attached to the Fe member which is finally etched to provide leads.
Patent GB-1497866-A (GB)
Title: Microscreening method and apparatus
IPC: B01D33/06
Filed: 1974-12-27
Abstract: 1497866 Rotary drum filters WATER POLLUTION CONTROL CORP 27 Dec 1974 [26 Dec 1973] 55930/74 Heading B1D In a method of microscreening a suspension to be screened is fed to the interior of a rotary drum so that a pool of suspension and a gas space thereabove are formed inside the drum, separated solids are removed from the drum's inner surface at a point above the pool by a back-flushing liquid spray into a collecting means within the drum and a positive pressure differential is maintained between the gas space and the space outside the drum during at least part of the method by applying positive pressure to the gasspace or suction to the space outside the drum. The pressure of the backflushing spray and the pressure differential may be varied during the process. In Fig. 11 drum 153 is rotating in filtrate-receiving tank 141 and receiving liquid from box 152, separated solids being removed from the drum by liquid spray from nozzles 165 into trough 157. The blower 190 is operating all the time. When the level of pool 154 is below the uppermost point of inlet 151 the. air from blower 190 is vented to atmosphere via inlet 151 and -box 152. When the level of the pool rises so that inlet 151 is filled, the air from blower 190 maintains a positive gas differential between space 173 and the space immediately outside the drum. If the liquid in box 152 rises to float 177a the pressure of the spray from nozzles 165 is increased; the spray pressure returns to its former value if the liquid in box 152 falls below float 175a. In Fig. 15 the apparatus is provided with a box 210 and trough 257a so that the pressures P 4  and P 3  may be maintained differently from pressure P 2  of the gas space. (P 4  # P 3 ). The drum may be mounted in a closed tank (e.g. Fig. 8, not shown).
Patent GB-1212115-A (GB)
Title: Pharmaceutical composition comprising magnesium acetylsalicylate and method for preparing same
IPC: A61K9/08
Filed: 1968-11-27
Abstract: 1,212,115. Compositions comprising magnesium acetyl salicylate. FAR EASTERN DETAILERS Ltd. 27 Nov., 1968 [29 Nov., 1967; 1 Dec., 1967], No. 56240/68. Heading A5B. Analgesic, antipyretic and anti-inflammatory compositions comprise a solid solution of magnesium acetyl-salicylate in a solid anhydrous alcohol and a pharmaceutical vehicle. Suitable alcohols are inositol and other specified C 5  and C 6  cyclic alcohols. The composition may be in the form of a powder, granules, tablets, suppositories, or injections.
Patent GB-1404889-A (GB)
Title: Process for producing billets by compacting powder
IPC: C22C19/05
Filed: 1973-12-05
Abstract: 1404889 Isostatic compaction and extrusion of powders FEDERAL-MOGUL CORP 5 Dec 1973 [19 Dec 19721 ]56297/73 Heading C7D Sintered powder compacts are made by packing the powder into a sealed ductile can and isostatically hot pressing to at least 90% theoretical density and then extruding the compacted assembly at an extrusion ratio of at least 2:1. The powders which are finer than 250 microns may be Al alloys, Fe alloys and Ni superalloys, B 4 C, WC, TiC, TaC, UO 2 . The two stage compaction allows the use of mild steel cans instead of stainless steel and compaction and extrusion can be effected at 1000-3000‹F. The powder is preferably prepared by gas atomization of the melt and the isostatic pressure medium is preferably argon. A large selection of alloys are disclosed which are suitable for processing.
Patent GB-1294106-A (GB)
Title: Improvements in or relating to high-power rotating machines
Inventor: GUIMBAL JEAN MARIE CLAUDE
IPC: H02K3/24
Filed: 1969-11-20
Abstract: 1294106 Dynamo-electric machines J M C GUIMBAL 20 Nov 1969 [25 Nov 1968] 56800/69 Heading H2A In a high power rotary electrical machine comprising a stator and an inductive rotor formed by a drum 1 carrying on its outer surface at least two windings each formed by a stack of flat conductive strips, radially extending bolts and insulated from the stacks secure the stacks to the rotor, and a coolant fluid circuit is provided by gaps between the stacks and between conductors in the stacks. As shown, the strips comprise longitudinal and transverse arcuate portions 6, 7 each formed by superposed tapes of which one or both are grooved at 23 to allow coolant flow. Current continuity between adjacent layers 5 is achieved by removal of the conductor insulation at 5a, 5a<SP>1</SP>, 5b, 5b<SP>1</SP>.
Patent GB-1382055-A (GB)
Title: Method of making a laminated structure with insulating member formed in situ thereon
IPC: H02K3/52
Filed: 1971-12-10
Abstract: 1382055 Injection moulding GENERAL ELECTRIC CO 10 Dec 1971 [17 Dec 1970] 57479/71 Heading B5A [Also in Division H2] A nylon body is moulded around a stack of laminations 88 (e.g. for an electric motor core) by clamping the stack within a mould cavity during the moulding process with a force which is independent of the force applied to hold the mould parts 91, 93 together. Preferably the laminations are clamped between spring-biased pins 103 on one of the mould parts and a supporting ledge on the other. Fixed rods 99, 101 position the laminations within the mould, and ejector pins 127 facilitate their subsequent removal.
Patent GB-578994-A (GB)
IPC: G01B5/20
Abstract: 578,994. Gauging-apparatus. MILNER, H. L. Nov. 5, 1941, No. 14283. [Class 106 (ii)] [Also in Group XXXIII] A gauge for determining the direction of the zero-lift line of an aerofoil section or air screw blade comprises an abutment 22 to engage the trailing edge of the section and jaws 32, 33 movable towards and from each other by equal amounts on opposite sides of a datum line 31 passing through the abutment 22, so that when the parts are adjusted so that the jaws engage the opposite ends of the ordinate at 50 per cent chord of the section, the zero-lift line lies in the datum line 31. In one form the abutment 22 is movable by a screw 18 engaging a fixed nut 17 on a frame 10, the jaws 32, 33 being mounted on rods 25, 26 pivoted at one end to the abutment and connected at their other ends by links 27, 28 to the frame 10. The frame has a base 11 parallel to the datum line 31. In a second form, the abutment is fixed to the frame and the arms carrying the jaws are pivoted to the frame adjacent to the abutment and are moved simultaneously by connections with a cross-head slidable on the frame by a screw. The gauge is particularly for use in carrying out the method of aerodynamically balancing airscrews as described in Specification 578,993, [Group XXXIII].
Patent GB-1378660-A (GB)
Title: Electric furnace steelmaking process
IPC: C21C5/52
Filed: 1971-12-20
Abstract: 1378660 Electric furnace steelmaking FLINTKOTE INTERNATIONAL LICENSING CO 20 Dec 1971 [22 Dec 1970] 59190/71 Heading C7D Dissolution of lime in the single slag of a basic electric furnace is accelerated by the addition of an oxide of boron or a substance containing such oxide or yielding it at the temperature of the bath. The additive may be charged with the lime, or immediately prior to or thereafter. Preferred additives are boron trioxide, boric acid, anhydrous borax, calcium metaborate, colemanite, rasorite, ulexite, enderite, kernite or kurnakovite, used in amounts ranging from ¢ to 5% wt per cent of the lime. Reference has been directed by the Comptrollers to Specification 1218805.
Patent GB-1421149-A (GB)
Title: Encapsulating composition for semiconductors
IPC: H01L23/29
Filed: 1972-12-21
Abstract: 1421149 Encapsulating compositions SEMIKRON GES FUR GLEICHRICHTERBAU UND ELEKTRONIK mbH 21 Dec 1972 [23 Dec 1971] 59190/72 Headings C3B C3R and C3T An electrically insulating composition for encapsulating a semi-conductor body comprises a mixture of (a) a hardenable organic resin; (b) at least one filler which does not affect the reverse voltage characteristic of the semi-conductor body; and (c) at least one organic chelating agent which is not reactive with said resin and is capable of binding impurities in said resin and in said filler which would otherwise affect said reverse voltage characteristic. Component (a) is suitably a phenolic, alkyd, polyester, silicone, epoxide or diallylphthalate resin. Component (b) is suitably quartz or chalk meal, a metal oxide such as aluminium or beryllium oxide, silicic acid, calcium sulphate, aluminium sulphate or calcium silicate. Component (c) is suitably a derivative of fluorone, xanthone, cumarin, chromone, quinoline, triarylmethane, quinone, phenoxazine, thiazolidine, imidazoline, pyrazolone, squaric acid, porphyrin or phthalocyamine, or an azo, azomethine or azine dye. In Examples (1) bisphenol A-epoxy resin hardened with anhydride, (2) epoxynovolak resin hardened with anhydride, (3) silicone resin hardened with a peroxide, (4) a mixture of bisphenol A and epoxynovolak resin hardened with a BF 3 -amine complex, (5) prepolymerized polyimide resin, (6) silicone rubber hardened with an amine, (7) prepolymerized polyamidimide resin, and (8) epoxynovolak resin hardened with anhydride are employed as component (a). Exemplified fillers are calcium carbonate, aluminium silicate, silicic acid and alumina powders. Exemplified chelating agents are ellogic acid, 9-phenyl-2,3,7-trihydroxy-6- fluorone, 5 - (4 - dimethylaminobenzalrhodanine), gallocyanine, phthalocyanine, 4,5, diphenylimidazolone (-2), auritricarbon acid, 3 - hydroxy - 1,2,3 - triresorcylcyclobutenon- (4), apigenin, anthrarufin, cuproin, 1,3,6- trihydroxyxanthone or glyoxal-bis-(2-hydroxyanil).
Patent GB-1291910-A (GB)
Title: Upgrading the tantalum and niobium contents of oxidic metallurgical products
IPC: C22B34/24
Filed: 1970-12-14
Abstract: 1291910 Upgrading the tantalum and niobium contents of tin slags KAWECKI BERYLCO INDUSTRIES Inc 14 Dec 1970 [22 Dec 1969] 59293/70 Heading C1A In the upgrading of the Ta and Nb content of tin slag containing silica, tin slag is first smelted with carbon to form carbides, the slag formed is smelted with iron oxides to convert the tantalum and niobium carbides to their oxides mixed with a product slag and metallic iron, the product slag and iron are removed by leaching with aqueous hydrochloric acid or sulphuric acid to form a residue containing about 30-35% wt. of tantalum and niobium oxides wherein the silica content impairs the filterability of the acid leached mass, the improvement comprising the incorporation of hydrofluoric acid in the leaching liquor in an amount that does not exceed that stoichiometrically equivalent to the silica whereby the hydrofluoric acid selectively attacks the silica and improves the separation of the tantalum and niobium oxides.