baber/WOPTO huggingface dataset:
Patent GB-1062270-A (GB)
Title: Corrosion resistant tubular articles
IPC: C23D5/00
Filed: 1963-12-24
Abstract: <PICT:1062270/C1/1> A method of glass coating the internal surface of a tubular article comprises applying a ground coat glass composition to the internal surface, the said composition consisting of a glass frit mixed with 25 to 75% by weight of finely divided particles of a refractory material, heating the ground coat glass composition to a temperature below the melting point of the refractory material to produce a hard, non-sticky vitreous enamel coating, introducing an applicator into the tubular article, supporting a portion of the applicator upon the ground coat surface, depositing a cover coat glass composition upon the vitreous enamel ground coated internal surface, and uniformly fusing the cover coat composition to the vitreous enamel ground coat composition.  A tubular article, e.g. a metal pipe, after having had its internal surface cleaned, has a ground coat enamel frit wet sprayed thereon, the pipe then being dried and placed in a firing furnace, to produce a ground coat enamel that is hard and non-sticky.  The pipe 1 is supported and continuously rotated up a roller 3 in furnace 2. When the ground coat has matured a cover coat applicator 6 is inserted into the pipe whilst still in the furnace.  The applicator rests upon the ground coat 5 of the pipe and has an auger 9 which deposits the cover coat frit 8 upon the ground coat as the applicator 6 is gradually withdrawn from the pipe.  The pipe 1 is caused to continuously rotate during the application of the cover coat, which is fired as it is applied. The ground coat enamel has a basic composition of 35 to 55% by weight refractory materials, 1 to 10% alkaline earth metal oxides, 10 to 25% alkali metal oxides, 1 to 7% alkaline metal halides, 12 to 30% oxides selected from the group boron, copper, chromium, cobalt, manganese and nickel oxide, and an addition of 25 to 75% of a refractory material of oxides, borides, fluorides, nitrides, silicides or aluminides having a melting point above 1600 DEG  F. The ground coat is fired in the range 1500 DEG  to 1650 DEG  F. and the cover coat matures below 1650 DEG  F.
Patent GB-1318907-A (GB)
Title: Electrical sensing apparatus
IPC: G01V3/10
Filed: 1970-10-28
Abstract: 1318907 Electro-physical measurement - dimensions WESTINGHOUSE ELECTRIC CORP 28 Oct 1970 [14 Nov 1969] 51135/70 Heading G1N [Also in Division H3] The distance of a metal object is measured by the voltage across an inductive sensor forming the tank-circuit of a high-gain oscillator with D.C. NEGATIVE FEEDBACK to ensure the oscillated drive amplifier works in its LINEAR region. As shown Fig.4, the inductor 14 is connected a drive amplifier comprising a "source-coupled" pair of F.E.T.'s 30, 32 with peak-clipping diodes 52, 54. The outputs of this amplifier are applied to feedback transistors 58, 62, which are energized through a constant-current transistor 64. Tr 58 supplies substantially D.C. negative feedback on line 22 to F.E.T. 32, (H.F. shunted by capacitor 80) while Tr 62 provides a constant current positive feedback through the inductor 14, (whereby the voltage across the inductor is proportional to the Q Factor). This voltage is also applied to a "source-follower" F.E.T. 82 (energized through a constant current transistor 86); rectified by diode 92, and the resulting D.C. signal passed to output transistor 98. In a more simple arrangement, Fig. 5, the inductance is connected to a common emitter pair 104, 106, and the output of Tr104 is applied to a feedback transistor 116 providing positive feedback on line 20 to the inductor and negative D.C. feedback on the base of Tr 106. The transistor 116 is driven from saturation to cutoff at all time thus providing a constant feedback current.
Patent GB-1521799-A (GB)
Title: Blades and surgical knives
IPC: A61B17/3211
Filed: 1976-12-08
Abstract: 1521799 Surgical knives RUDOLPH BEAVER Inc 8 Dec 1976 [21 April 1976] 51235/76 Heading B4B [Also in Division B3] A method of forming blades 16, for a surgical knife, from a metal strip 10 comprises blanking out portions of the strip to form a guide strip 12 and a series of blades 16 extending from an edge of strip 12, each blade having an outer edge portion 20 parallel to the axis of the strip, sharpening portions 20 into cutting edges by passing the strip 10 continuously through sharpening means, forming a weakened portion 28, 26 between each blade 16 and the guide strip 12, and separating blades 16 from the strip along the weakened portions. Portion 22 of each blade 16 forms a tang by which the blade 16 may be mounted in a holder 30 of a surgical knife by being secured in slot 34, and the tang then broken off. Holder 30 may be of plastics material and blade 16 may be secured by adhesive, RF heating or sonic welding, or holder 30 may be of metal and blade 16 mechanically secured. Strip 10 may be of a carbon steel or a heat-treatable stainless steel.
Patent GB-1089738-A (GB)
Title: Process for producing constructional building members
IPC: E06B3/263
Filed: 1965-12-02
Abstract: 1,089,738. Window &c. frames. LE CHASSIS METALLIQUE BELGE CHAMEBEL S.A. Dec. 2, 1965 [Dec. 4, 1964], No.51238/65. Heading E1J. In a process for producing building members, e.g. mullions or transoms for screens, windows or door frames, metal elements 1; 2 are connected in spaced relation by non- metallic panels 3, 3' of low thermal conductivity to form a tubular cavity and polymerisable liquid transformable into a rigid foam material is injected into the cavity to fill it. The elements 1, 2 and panels 3, 3' interengage by means of flanges 5, 5' and 16, 16', 26, 26' and grooves on the panels 3, 3' and elements 1, 2. The panels 3, 3' may be thermosetting synthetic plastics material reinforced with for example glass fibre. Packing blocks 7 are utilised for assembling purposes and may be rigid or resilient.
Patent GB-1124509-A (GB)
Title: Improved rotary internal combustion engine
IPC: F01C1/07
Filed: 1964-12-18
Abstract: 1,124,509. Rotary internal combustion engines. L. SHARPLES. Dec. 15, 1965 [Dec.18, 1964], No. 51550/65. Heading F1F. A rotary I. C. engine of the geared-vane type comprises a cylindrical casing 1, Figs. 2, 3, having outer and inner walls providing a watercooling jacket 8 with the inner wall 4 forming the outer wall of an annular combustion chamber 5, inlet and outlet ports 6, 7a extending arcuately towards each other around the wall 4 connected respectively to a carburetter (or fuel-injector) and exhaust, and a firing point 9. End casing components 2, 3 secured to the casing 1 bearingly support shafts 28, 29 formed with flanges 31 connected together in spaced relationship by an intermediate shaft 54 and a spacing-ring 32. The spacing-ring 32 with sealing rings 42 form the inner wall of the combustion chamber 5 and with the flanges 31 form a hollow flywheel 30 within which is rotatably and coaxially mounted on the shaft 54 a pair of rotors 52. Each rotor 52 is formed with a pair of opposite and radial arms 51 with each arm passing through a slot 33 in the spacing-ring 32 and carrying an arcuate piston 56 of rectanuglar iron-section rotable in the annular chamber 5. Each arm is connected by a gudgeon-pin 53 to one end of a connecting rod 50 whose other end is connected to a tubular pin 49 eccentric with a member formed at its ends with pinions 48 which mesh with fixed sunwheels 21 formed on or secured to the end components 2, 3, so that as the engine operates, the pistons 56 move in pairs towards and away from each other to carry out a four-stroke cycle of induction; compression, expansion and exhaust in each space between adjacent pistons. The ends of each piston 56 are formed with annular grooves 57 in each of which is mounted a pair of L-shaped piston rings 58 Fig. 7, urged into sealing engagement by leaf-springs 59 with the walls of the combustion chamber with the gap in one ring covered by the angle of the "L" in the other ring. The adjacent faces of the spacing-ring 32 and sealing rings 42 are formed with complementary stepped helical surfaces which are urged apart by springs between the steps to urge the rings 42 sealingly against the end components 2, 3 and the pistons 56. The shaft 29 is the power output shaft whilst the shaft 28 drives the auxiliaries such as a contact-breaker, and oil-feed and oilscavenging pumps force-feeding lubricant to the engine through a duct 36 in the shafts 28, 29 and radial ducts. Oil is returned from the engine through connections 23 and air vented from the casing through connections 24.
Patent GB-1282740-A (GB)
Title: Radiation resistant semiconductor device
Inventor: RECKO R L
IPC: H01L23/552
Filed: 1969-10-21
Abstract: 1282740 Semi-conductor devices NORTHROP CORP 21 Oct 1969 51608/69 Heading HlK A radiation resistant semi-conductor assembly is entirely composed of materials having atomic numbers of 14 or less, with the exception of semi-conductor dopants which may have atomic numbers between 15 and 32. The Si transistor 1 shown has Al electrodes, bonding pads 2, jumper wires 9 and terminal tabs 4, 4a, 4b, Al/Si eutectic alloy 5 being used to fix the transistor 1 to one of the tabs 4. A low atomic number plastics bonding material 7 secures the tab 4 to an aluminium oxide or beryllium oxide support 6, and in a modification the transistor 1 is mounted directly on the support 6. Encapsulating material 10 similar to the bonding material 7 is applied uncured and then cured to complete the assembly. Various preferred acoustic velocity conditions are stipulated for the encapsulation 10 to improve the radiation resistance of the assembly. An integrated circuit assembly in a low atomic number ceramic housing is described, and other devices referred to are diodes, silicon controlled rectifiers, resistors, field effect transistors and MOS transistors.
Patent GB-1485425-A (GB)
Title: Radar modulator
IPC: H03C7/00
Filed: 1974-11-28
Abstract: 1485425 Controlling rectifiers TEXAS INSTRUMENTS Inc 28 Nov 1974 [3 Dec 1973 (2)] 51647/74 Heading H2F [Also in Division H3] In a radar modulator (see Division H3) a stabilized D.C. supply is derived from threephase A.C. 350 by means of a bridge 352 of thyristors. A control signal is derived from phase A by details 356 ... 382 and compared at 366 and 384 with an error voltage derived by monitoring the D.C. output 412 by means of amplifiers 416, 418. The resulting signal controls the time of operation of oscillators 370 ... 374 and 386 ... 388 which control the turn on times of two of the SCR's of the bridge 352. Fig. 6 (not shown) relates to similar circuits responsive to the voltages of phases B and C for triggering the other four SCR's. The current in phase C is monitored at 430 and fed to amplifiers 432, 434 to provide indication on a fault board and to provide over-current protection with automatic reset for a predetermined number of times only.
Patent GB-1243280-A (GB)
Title: Dynamic forced air intakes for vehicles
IPC: B64C11/00
Filed: 1969-10-22
Abstract: 1,243,280. Gas turbine engines - air intakes. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES. Oct.22, 1969 [Oct.24, 1968], No.51821/69. Heading F1G. [Also in Division F2] The invention relates to an air intake such as for an aircraft gas turbine engine, the object of the invention being to avoid losses at the intake when the aircraft in which the engine is mounted is travelling at less than the design speed, for example, when the aircraft is stationary. The invention is described with reference to a gas turbine ducted fan engine having a fan cowl 5 at the leading edge of which are mounted a plurality of movable flaps 6. When the aircraft is travelling at its design speed the flaps 6 are disposed in their retracted position indicated by chain-dotted lines in Fig. 5 in which they are received in a recess in the outer surface of the cowl. When the aircraft is travelling at low speed or is stationary, the flaps are moved to their operative positions shown in full lines. Inflowing air now flows along the outer surfaces 6c of the flaps into the intake 3; also air flow is induced through the convergent duct 11 defined between the inner surface 6a of the flaps and the outer surface 5c of the cowl, this air acting to prevent flow separation adjacent the inner surface 5a of the cowl. The flaps are movable by means of an actuator 12 acting through a bell-crank lever 13 each flap carrying an arcuate guide 7 which co-operates with a fixed guide 8, suitable rollers being provided. The spaces between adjacent flaps are closed by means of spacers 9, Fig. 8, which are secured at the edge of one flap and are slidably received in a slot in the edge of the adjacent flap.
Patent GB-1513760-A (GB)
Title: Fluid flow control valve for a liquid fuel rocket and a liquid fuel rocket including such a valve
IPC: F02K9/58
Filed: 1975-12-18
Abstract: 1513760 Valves K ADACHI 18 Dec 1975 51929/75 Heading F2V [Also in Division F1] A liquid fuel rocket comprises a lowermost thrust stage C, Fig. 2, having a rocket motor 1 and fuel and oxidant tanks 2, 3, and at least one (two as shown) propellant bodies A, B, each provided with respective fuel and oxidant tanks 8A, 8B and 9A, 9B, connected to each other and to the thrust stages by valves 18 in their first positions, Fig. 5, each cylindrical valve, e.g. the valve between bodies being turned through 90‹ to disconnect the lines when either of the tanks 8A, 9A is empty, the lines 24A, 24B being simultaneously connected by the valve to gas pressure lines 28, 29, Fig. 10, to continue feeding fuel and oxidant to the engine. Explosive bolts (39), Fig. 3 (not shown) are actuated to detach the upper part of valve 18 on actuating the valve when the tanks are empty so that auxiliary rocket motors 13A, 14A may be fired to jettison the upper body A. Similarly, the body B may be jettisoned later.
Patent GB-521946-A (GB)
Abstract: 521,946. Synthetic linear polymers. DU PONT DE NEMOURS & CO., E. I. Sept. 28, 1938, No. 28200. Convention date, Oct. 22, 1937. [Classes 2 (ii) and 2 (iii)] The properties of fibre-forming synthetic linear polymers of the kind described in U.S.A. Specifications Nos. 2,071,250-2,071,253, viz., poly-amides, -esters, -ethers, -acetals and - ester-amides, in particular polyamides, are improved by cold rolling or die stamping. Cold rolling includes rolling at elevated temperatures substantially below the melting point of the polymer, and may be combined with, or follow, cold drawing, Rolling is such that the surface area is doubled and, preferably, quadrupled ; it may be effected in more than one direction and the increase in area may be limited to one direction. Examples are given. Cold rolled products may be used for various purposes, e.g. sheets, for safety glass interlayers, electrical insulation and leather substitutes; foils, for wrapping and decorative purposes; filaments, as artificial straw. The Specification as open to inspection under Sect. 91 describes also treatment by extrusion and die drawing. This subject-matter does not appear in the Specification as accepted.
Patent GB-1021777-A (GB)
Title: Variable magnification binoculars
IPC: G02B15/00
Filed: 1964-12-23
Abstract: 1,021,777. Binoculars. K. KAJIRO. Dec. 23, 1964, No. 52360/64. Heading G2J. Variable magnification binoculars have a single zoom lens 2 common to both eyepieces 1a, 1b. As shown, a beam splitter 4 divides the beam from lens 2 into two halves which pass respectively to prism 5 and lens 7, and prism 6 and lens 8, the zoom lens being operated by an electric motor 13, powered from batteries 14 and controlled by switches 15, 16, and acting through gearing 12 on a cam sleeve 9.
Patent GB-1154608-A (GB)
Title: Halogenated Di-and Tri-Aryl-Pyrazoline Sulphonic Acids
IPC: C07D231/06
Filed: 1967-11-20
Abstract: 1,154,608. Halogenated di- and tri-arylpyrazoline sulphonic acids. J. R. GEIGY A.G. 20 Nov., 1967 [21 Nov., 1966], No. 52676/67. Heading C2C. [Also in Divisions C3 and D1] Compounds of the formula where Hal is F, Cl or Br; R 1  is H, alkyl, aralkyl, iso-cyclic aromatic or heterocyclic-aromatic radical; R 2  is H or low alkyl group; Ar is an isocyclic-aromatic radical optionally substituted by halogen, alkyl, non-colouring acylamino, alkoxy-carbonylamino groups, or it is a heterocyclic-aromatic radical, or Ar and R 2  together with the C atoms to which they are bound form a ring, are made by reacting the compound with 1 to 5 times the amount of a halogen sulphonic acid in an inert solvent. The products may be used for the optical brightening of synthetic or natural polyamide of the material.
Patent GB-1086708-A (GB)
Title: Improvements in or relating to metal bodies and their manufacture
Inventor: EVANS DAIN STEDMAN
IPC: C23C8/02
Filed: 1964-12-30
Abstract: A metal body based on W and/or Mo includes at least in the surface layer a minor proportion e.g. 5-15% by weight of a more easily oxidizable metal e.g. Cr, Th, Ti, Hf, Zr, U, Mg, Ce, Al and Be and a minor proportion e.g. 0.01-10%, of Co, Ni, Ru, Rh, Pd, or Pt and is heat treated in an oxidizing atmosphere to form an adherent protective coating consisting of or including an oxygen containing compound of the preferentially oxidizable metal.  The body which may also contain up to 20% of Re or Ta and 1-2% of thoria or potassium silicate is formed by arc melting and casting or by pressing and sintering the constituents.  Alternatively a W or Mo based sintered or cast body may be coated with the preferentially oxidizable metal e.g. Cr electrolytically or by vapour deposition and then heated to cause a diffused surface alloy. The preferred body contains 5-10% Cr, 1-5% Pd and the balance W and the oxygen containing layer may be formed during the normal conditions of use of the body or by heating in air or moist hydrogen prior to use.  The oxidizing step may also be carried out during the sintering step e.g. at 1300 DEG -1500 DEG C. for W-Cr alloys or 1400 DEG -1450 DEG C. for W-Cr-Pd alloys or preferably in two stages.
Patent GB-1321998-A (GB)
Title: Radioactive tagged forms of carcinoembryonic antigen and methods for the preparation thereof
IPC: G01N33/574
Filed: 1970-11-09
Abstract: 1321998 Tagged carcinoembryonic antigen F HOFFMANN-LA ROCHE & CO AG 15 June 1970 [1 June 1970] 53214/72 Divided out of 1321997 Heading A5B The human carcinoembryonic antigen (CEA) of the parent Specification 1321997 is tagged with a radio active atom by conventional reactions. The example describes the preparation of CEA tagged with I<SP>125</SP> by mixing CEA, chloramine-T and KI<SP>125</SP> or NaI<SP>125</SP> and separating the product by chromatography on a cross-linked dextran. The tagged product is useful in the diagnostic test described in Specification 1321999.
Patent GB-1028612-A (GB)
Title: í¸17(20)-pregnen-21-oic acid alkyl ester compounds
IPC: C07J75/00
Filed: 1962-11-02
Abstract: The novel compounds 3b -hydroxy-11-keto-5,17(20)[cis] - pregnadien - 21 - oic acid methyl ester, 3b  - hydroxy - 5a ,6a  - epoxy - 11 - keto - 17(20)[cis] - pregnen - 21 - oic acid methyl ester and 3b ,5a - dihydroxy - 6b  - fluoro - 11 - keto - 17(20)[cis] - pregnen - 21 - oic acid methyl ester, and other C2- 8 alkyl esters are prepared by reacting 3b -hydroxy-5-pregnene-11,20-dione or the corresponding isopregnene or mixtures thereof with a dialkyl oxalate and an alkali metal base to produce the corresponding 21-alkyloxyoxalyl alkali metal enolates, converting these with bromine, chlorine or iodine in the presence of a base into the corresponding 21,21-dihalo-21-alkoxyoxalyl compounds, hydrolysing these with an alkali metal alkoxide and an alkanol to give the required D 5-compounds, epoxidizing these to give the required epoxides, and reacting these with hydrogen fluoride to give the required 6b -fluoro-compounds.  These may then be oxidized to the corresponding 3-ketones. 5b ,6b -epoxides are by-products of the epoxidation reaction, and these are removed by conventional methods.  Examples are given, an intermediate in the halogenation stage being a 5,6-dibromo compound which is reconverted to the required D 5-compound by reduction with zinc and acetic acid.
Patent GB-1349280-A (GB)
Title: Process for dyeing cellulose fibres
IPC: D06P1/00
Filed: 1971-11-19
Abstract: 1349280 Dyeing cellulose with reactive dyes FARBWERKE HOECHST AG 19 Nov 1971 [20 Nov 1970] 53832/71 Heading D1B Cellulosic fibres in the form of yarn or sliver are dyed as a wound package by impregnating the package with an aqueous liquor containing an alkaline substance followed by injecting into the package one or more neutral to weakly acidic aqueous solutions each containing a reactive dyestuff, the dyes then being fixed by allowing the package to dwell at room temperature or at a moderately elevated temperature of from 30-60‹C. The wound package may be heated to 50 to 100‹C before injection of the dyestuff the dye solutions which are preferably at 50 to 90‹C. Non-ionic and anionic wetting agents may be used in both the alkaline liquor and in the dye liquor.
Patent GB-538780-A (GB)
Abstract: 538,780. Tumbler switches. TUCKER & CO., Ltd., J. H., and FUKE, F. C. April 3, 1940, No. 5968. [Class 38 (v)] Two moving contacts 8 are mounted on spring blades 5 and are separable by means of a moving member 9, abutting against the blades themselves, associated with the free end of the switch-actuating member, the movement being greater than the separation of the contacts. The member 9 may be pivoted at 10. The blades may be cranked, as shown, or may be straight but set apart wider at their fixed ends than at the contact-bearing ends. In a modification, Fig. 3, adapted to give a quick make, the separating member 11 is pivoted at 12 and on being slidden towards the contacts 8 the tail 11a engages the projection 5a on the contact blade 5, or on the base, and turns to present its length across between the blades 5. On the reverse motion the projection 5b engages the tail 11a to free the blades,
Patent GB-1217230-A (GB)
Title: A rigid rear axle suspension in a motor vehicle
IPC: B60G9/02
Filed: 1968-11-14
Abstract: 1,217,230. Beam axle suspensions. DAIMLER-BENZ A.G. 14 Nov., 1968 [15 Nov., 1967], No. 54115/68. Heading B7D. In a motor vehicle a cranked rigid rear axle 2 is pivoted to an axle carrier 3 to swing about a transverse axis A-A, the carrier 3 being mounted within the vehicle wheelbase by front and rear bearings 9, 10 to swing about a longitudinal axis B-B situated below the wheel centres. The rear bearing 10 is supported on the vehicle body by struts 13 arranged to form an inverted triangle (Figs. 3, 3a, 4, 4a, not shown). These struts 13 may form, with springs 14 or shock absorbers, a unit which is detachably secured to the vehicle body. The struts may be interconnected by a cross bridge and supported resiliently on the body. The front bearing 9 is an axial and radial bearing whilst the rear bearing 10 is a radial bearing.
Patent GB-1074719-A (GB)
Title: Method of and apparatus for developing photographic films
IPC: G03D5/04
Filed: 1965-12-21
Abstract: 1,074,719. Spray developing apparatus. OMAC S. N. C. Dec. 21, 1965 [Dec. 29, 1964], No.54222/65. Heading G2A. Apparatus for developing photographic film (negative or colour reversal) by spraying it with development liquid while progressing it continuously through the apparatus comprises a plurality of cells 1 fitted with upper and lower shafts 4, 5 around spools 3 on which the film is progressed in loops, the lower shafts being driven by a motor 8, and sensing means for sensing the film tension in each cell, which means also provide a visual and/or audible indication of a breakage in the film or of a tension likely to result in a breakage. The apparatus contains a dark section O and a light section C, the processed film being wound on to a friction driven take up spool 9 after leaving the section C. The upper shafts are mounted in displaceable blocks (10) carried by springs (11) Fig. 2 (not shown). A breakage in a cell causes the respective blocks (10) to rise, thereby moving a cam (24) out of the path of a microswitch (25), which thus completes a circuit to a lamp 26 on the cell 1 and to a bell 29 on a control panel 27 or 28. The cam (24) also moves out of the path of microswitch (25) when the blocks (10) sink due to excessive tension. A pointer 20 and scale may be provided to indicate the tension.