baber/WOPTO huggingface dataset:
Patent GB-1283133-A (GB)
Title: Method of manufacturing semiconductor devices
Inventor: ABE TOSHIO
IPC: H01L21/00
Filed: 1970-06-19
Abstract: 1283133 Semi-conductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 19 June 1970 [19 June 1969] 29958/70 Heading HlK In an NPN transistor the emitter region is formed by diffusion of As and the base region is formed at least in part by ion implantation. This combination is said to eliminate the emitter dip effect. In a first embodiment, Fig. 1H, an N-type layer (11) is epitaxially deposited on an N+- type Si substrate (10) and covered with a layer (13) of 5i0 2  formed by reaction of SiH 4  with O 2 . The oxide layer is photomasked and etched and a layer of Si0 2  containing B is deposited and the wafer heated to diffuse-in the B to form part (17) of a base contact guard ring. The oxide layer within the outer periphery of the ring is removed and a second layer 19 of 5i0 2  containing B is deposited, an emitter stripe window is formed above the opening of the previously diffused ring, and the wafer is heated to diffuse-in the B to form a shallower extension of the base contact guard ring 21. The wafer is then sealed in a quartz tube together with Si crystals doped with As and heated to form the diffused emitter stripe 22. The thin active part 23 of the base region below the emitter region is formed by implanting B ions through the emitter diffusion window and the wafer is annealed. Base and emitter electrodes 25, 26 are applied through openings formed in the layer 19. Although only a single emitter region is shown, in a practical arrangement, Fig. 2 (not shown), a plurality of parallel emitter stripes are provided, the base contact guard ring being in the form of a grid. In a modification, Fig. 3 (not shown), the active part of the base region is formed by ion implantation through the emitter window and the wafer is annealed before the emitter diffusion is performed. It is stated that the emitter dip effect is avoided by the use of As for the emitter diffusion. The base contact guard ring may be formed by gas phase diffusion and the acceptor impurities may be Al or Ga instead of B. The masking material may also be Si 3 N 4  or a metal. In another embodiment, Fig. 4 (not shown), the base region is diffused completely across the openings in the base guard ring, an oxide layer is applied, As is diffused through a window to form the emitter region, and B ions are implanted through the emitter window to enhance the active part of the base region. The ion implantation may be performed before the emitter diffusion. In a further embodiment, after forming the base contact guard ring the surface is covered with an oxide layer which is processed to form the emitter window surrounded by a thin portion of the oxide layer. B ions are then implanted through the window and also through the thin portion of the layer to complete the base region. Reference has been directed by the Comptroller to Specification 1,228,754.
Patent GB-1411345-A (GB)
Title: Harmless softening agent for fabrics having excellent moisture absorbability
IPC: D06M101/16
Filed: 1973-06-25
Abstract: 1411345 Fatty compositions DAI-ICHI KOGYO SEIYAKU CO Ltd 25 June 1973 [12 July 1972] 29969/73 Heading C5C [Also in Division D1] A softening agent for fabrics comprises 5-50 wt. per cent of a first component which is an animal or vegetable fat or oil, and 95-50 wt. per cent of a second component which comprises at least one partial ester of a polyvalent alcohol and a C 12-18  fatty acid, the second component including at least 10 wt. per cent of mono-ester based on the total weight of second component. Specified fats and oils are beef tallow, whale oil, hog fat, cotton seed oil, soybean oil, coconut oil and palm oil. The partial ester may be an ester of propylene glycol, glycerol, sorbitan or sugars. The composition may be diluted with water or organic solvent before application to the fabrics. Many examples are given.
Patent GB-1373976-A (GB)
Title: Electrical control circuit
IPC: B07C5/342
Filed: 1972-02-29
Abstract: 1373976 Transistor switching circuits AMF Inc 29 Feb 1972 [20 May 1971] 29988/73 Divided out of 1373975 Heading H3T [Also in Division G1] In order to compare the intensity of reflected light from a tobacco leaf, with a reference intensity represented by a stored voltage in capacitors C1, C2, a photosensitive field effect transistor is used, its output being applied to an operational amplifier 38Q1 and a brightness level indicator circuit 38Q2, which provides an output at 38B 1 if the reflected light level is greater than the reference intensity by a certain amount, or at 38B2 if it is less by the same amount. The circuit of Fig. 4, shows the use of a phototube and a voltage follower FET, which may be replaced by the photosensitive FET. Alternatively to the phototube, a photodiode may be used. While tobacco leaves are being viewed by the detector, gate 108 is closed, at other times a reference colour background is viewed to update the stored voltage in capacitors C1, C2.
Patent GB-252631-A (GB)
Title: Improvements in and relating to vehicles for transporting pipes and other loads
IPC: B60P3/40
Filed: 1925-11-27
Abstract: 252,631. Hume, W. R. Nov. 27, 1925. Trucks with suspended load.-In a vehicle for transporting pipes and like heavy loads, of the type having a wheeled forecarriage with an upstanding structure, an elevated load beam pivoted to such structure, a wheeled trailer with an upstanding structure to which the rear end of the beam is secured, and hoisting devices associated with said beam, the wheeled forecarriage or tractive unit is provided with a chassis having an upstanding structure 3. an elevated beam 23 supported on such structure 3, a wheeled trailer 16 having an upstanding structure 22 secured to the rear end of the beam, the wheels of the trailer being adapted to turn bodily about a vertical axis 33, load hoisting devices 27, and interconnecting means 14 whereby a direct pull is exerted between the fore carriage and the trailer in opposition to the bending strain caused by the load. The superstructures 3, 16 comprise converging plates 4, 22 respectively, and the forecarriage 2 is provided with a king-pin 7 to which the front end of the suspension beam 23 is detachably secured and to which also a draw-bar 9 is pivotally secured. The suspension beam 23 is provided with struts 28, 29 and also struts 32 against which the load 18 is pressed. The interconnecting or tension lines 14 are connected at the fore end, either directly or through a cross-bar or swingle-tree, to the drawbar 9 and at the rear end to a spring and screwadjustment 17. If the load comprises a receptacle 35, Fig. 6, containing material 18, the tension lines 14 may be connected to the receptacleas shown.
Patent GB-1500657-A (GB)
Title: Lightweight silicon oxynitride
IPC: C04B38/00
Filed: 1976-07-19
Abstract: 1500657 Low density silicon oxynitride NORTON CO 19 July 1976 [21 July 1975] 30010/76 Heading C1J An insulating refractory body consists essentially of Si 2 ON 2  (less than 30% of SiO 2  and less than 15% of Si 3 N 4 ) which body has a density less than 50% of theoretical, a crush strength in excess of 300 p.s.i. and a thermal conductivity of less than 20 B.T.U. inch/hr/ft<SP>2</SP>/ F. at 1170 F. The raw batch contains pore-forming bubbles or spheres, e.g. glass bubbles, alumina bubbles or polystyrene beads. The raw batch is prepared by mixing silicon and SiO 2  which is then fired in a nitrogen atmosphere. The preferred bubble contains about 75% silica and has a chemical composition comparable to normal window glass. A promoter, e.g. CaO or CaF 2  may also be present. The refractory body may be used in aluminium chloride electrolysis.
Patent GB-929780-A (GB)
Title: Improvements in or relating to electrical power supplies
Inventor: WESTON MARTIN ANDREW
IPC: G05F3/18
Filed: 1959-09-03
Abstract: 929,780. Automatic voltage and current control systems. MINISTER OF AVIATION. Sept. 1, 1960 [Sept. 3, 1959], No. 30059/59. Class 38 (4). In the electric power supply circuit shown, stabilized voltages are taken from terminals A3, A5. A6 and A4 across Zener diodes D2, D3 and D4 when an unregulated supply voltage is connected across terminals A1 and A2, and a transistor Q is provided having its emitter connected over a resistor R1 to terminal A1, its collector connected to terminal A3, and its base connected over a resistor R2 to terminal A2, a Zener diode D1 being connected between terminal A1 and the transistor base. If the supply voltage increases, the voltage across D1 will remain substantially constant but the increase in current through resistor R1 will decrease the bias between emitter and base and the supply current will then tend to decrease. Thus the emitter and collector currents tend to remain constant and the current through diodes D2, D3 and D4 will also remain constant giving better stabilisation of the output voltage. A Zener diode D5 connected between the base and collector electrodes protects the transistor during transient conditions. Reference has been directed by the Comptroller to Specification 877,496.
Patent GB-834347-A (GB)
Title: Process for modification of olefin polymers
IPC: C08F8/40
Filed: 1957-09-25
Abstract: Compositions of homopolymers or copolymers of aliphatic olefines are prepared by adding phosphorus trichloride to a mixture of sulphur and polymer at above 140 DEG  C., or alternatively by adding sulphur and phosphorus trichloride portionwise, alternately or simultaneously to the polymer, the mol. ratio of the total amounts of sulphur to phosphorus trichloride used being at least 1:1.  Polymers of ethylene, propylene and isobutylene and copolymers thereof with minor proportions of styrene, substituted styrene and butadiene, preferably of M.W. between 250 and 3000, are used.  The products may be after-heated with water, e.g. as steam; alcohols, such as methanol, 2-ethyl hexanol, ethylene glycol, glycerol and butanediol; phenolic compounds; basic alcoholates and metal compounds such as sodium hydroxide, barium and calcium oxides; and bases such as ammonia, ethylene diamine, n-butyl amine, octadecyl amine, pyridine and piperidine.  The salts, esters, amides and metal salts so produced may be used as surface-active agents, e.g. in asphalt emulsions, dispersant agents in lubricating mineral oil, as heat and light stabilizers, e.g. in polyvinyl chloride, insecticides, paint-driers and plasticizers.
Patent GB-745023-A (GB)
Title: Improvements in refractory metal electrodes for use in gas-shielded arc welding and cutting
IPC: B23K35/22
Filed: 1953-11-02
Abstract: A non-consumable electrode for arc welding or cutting is composed of tungsten having dispersed therein 0,5 to 10 per cent of calcium oxide, preferably 2 per cent.  The electrode is made by forming under pressure a mixture of powdered tungsten and calcium acetate powder and sintering the ingot so formed at 2000 DEG C. by passing a current therethrough, the rod being finally drawn or swaged.
Patent GB-404428-A (GB)
Title: Improvements in electric and other imitation fires
IPC: F24C7/00
Filed: 1932-10-27
Abstract: 404,428. Imitation fires. PREMIER ELECTRIC HEATERS, Ltd., and NEWTON, A. E., Keeley Street, Birmingham. Oct. 27, 1932, No. 30203. [Class 126.] In an imitation fire, means are provided for obscuring part of the moving light beams which would otherwise pass directly outwardly through an opening or a transparent or translucent part, together with a reflecting surface which changes the direction of some of the obscured beams and reflects them outwardly through the opening &c. In the construction shown, moving light beams from a spinner device 24 pass outwardly through slots 13 in a plate 12 closing a front opening 10. Behind the plate 12 are two shields 18, 19, the first being of V-form, and the second curved and provided with a central aperture 21. The surfaces of the shields are reflecting, so that light passing through the aperture 21 is reflected from the shield 18 to the inner face of the shield 19 and thence through the slots 13. The shields may be of copper to colour the light, and their surfaces are embossed to disperse the rays. Steady light from the underside of the spinner 24 falls on a horizontal mirror 29 and is reflected up and through the slots in the plate 12 which are covered by the shield 18. The lower front part of the fire thus presents an appearance of steady burning in the centre with an area of flickering glow on each side of it. The plate 12 is mounted on the lower inclined portion 15 of a bent translucent member 14, the upper part of which may carry imitation fuel. Specification 404,302 is referred to.
Patent GB-313909-A (GB)
Title: Improvements in or relating to insulated conductors
IPC: H01B3/08
Filed: 1928-10-18
Abstract: 313,909. Rockbestos Products Corporation, (Assignees of Anderson, H. 0.). June 19, 1928, [Convention date]. Insulating coverings for cables and conductors. - A conductor 10 is covered with staggered layers 11 of fabric such as varnished cambric, or the direction of winding the layers may be alternated. A layer 12 of felted asbestos fibres is placed over the fabric, and the conductor is then passed to a machine where an outer cover 20, preferably of braided cotton, is applied. The cover 20 is then impregnated with flameproof paint. In a modified construction, felted asbestos fibres are placed between the conductor and the cambric layers. Fig. 4 shows the method of applying the asbestos fibres to the fabric covered conductor. The fabric-covered conductor 13 may be passed through a bath 15 of adhesive, and then the conductor 13 and fibres 14, adhering to a carrier such as a cotton thread 14<a>, are passed to a wrapping head 16. The wrapped conductor is passed to a device 17 which compacts the fibrous mass, and then to a bath 18 of flame-proof paint such as asphaltic material in solution with a flame-proofing agent added. The conductor is then passed to a polishing device 19 and the cover 20 applied. Specification 162,169, [Class 100 (i), Feeding and delivering webs &c.], is referred to.
Patent GB-774218-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B33/10
Filed: 1954-10-20
Abstract: 774,218. Disintegrating vegetation. MASON, C. Oct. 20, 1955 [Oct. 20, 1954], No. 30223/54. Classes 6(1) and 6(3). A vegetation-disintegrator comprises one or more shafts rotatable about a vertical axis or axes and having attached thereto lengths of chain. As shown in Figure 1, the shaft 7 is carried by bearings 6 on a plate 5 forming part of a frame 2 carried by tractor lift-links. The shaft 7 carries a pulley 8 at its upper end by which it is driven from the power take-off. Two discs 10 at the lower end of the shaft 7 are spaced apart by coned members 12 forming anchorages for shackles 13, 14 to which are attached the chains 15. The chains terminate in spikes 16. Several shafts 7 may be mounted on a frame and may be surrounded by a guard of canvas.. The shafts may be inclinable in a longitudinal plane. According to the Provisional Specification, the chain-carrying structure is mounted directly on the tractor power take-off pulley. A rake, for lifting the vegetation, may be mounted in front of the chains.
Patent GB-707052-A (GB)
Title: Improvements in or relating to couplings for trailer vehicles
IPC: B60D1/60
Filed: 1950-12-13
Abstract: 707,052. Couplings for vehicles. WITTER, C. P. Dec. 13, 1951 [Dec. 13, 1950], No. 30405/50. Class 103(5) A coupling element between a towed and a towing vehicle comprises a ball 12 having a shank 10 passing through resilient bushes 13 which are held compressed in the bracket 15 by means of the nut 17. A cap 18 may be provided to cover the ball 12.
Patent GB-779064-A (GB)
Title: Improvements in and apparatus for locating capsules on the necks of bottles
IPC: B67B3/062
Filed: 1954-10-22
Abstract: 779,064. Applying capsules. BETTS & CO., Ltd., and HAWKES, W. J. Oct. 21, 1955 [Oct. 22, 1954], No. 30429/54. Class 117 [Also in Group XVII] A method of locating a capsule on the neck of a bottle consists in arranging a stick 3 of inverted capsules, preventing movement of all the capsules except the lowermost capsule by means of pad 33, blowing the lowermost capsule by a jet of air into a cup 5 carried by rotary boss 7, rotating the boss to bring the capsule above the bottle and causing the capsule to fall on to the neck of the bottle. As shown, the movements of the elements of the apparatus are effected by air cylinder 15 triggered by the engagement of an arriving bottle with an air valve. Piston 18 retracts to turn anti-clockwise the pawl plate 19. The latter carries pawl 20, pin 23 which raises locking stop 24, and pin 22 which pivots lever 25. The latter causes slide 27 to slide downwards and to achieve three objects. To withdraw stop 4 to free a capsule for movement along guide rails 6 into cup 5 at position A; to apply pad 33 to the stick of capsules, the pad being carried by pivoted arm 31 and being engaged by striker 29 carried by slide 27; and to operate valve 9 by the engagement therewith of striker 35 also carried by slide 27 and thus to cause jets of air to blow said capsule into the cup 5 at said position A and to blow a capsule from cup 5 at position B on to the waiting bottle. The capsule is ejected from cup 5 (Figs. 6, 8) by air introduced by pipe 41, which air passes through bores 48 and 47 to eject the capsule, hole 46 being closed at position B by pads 54. In a second embodiment (Fig. 17) the apparatus is made variable for use with capsules of differing sizes. Thus shoot 3 is pivoted at 58 and adjustable at 59; the pads 33 (Fig. 16) are movable by rotation of ring 66 which is operated from slide 27 (Fig. 19) by cam plate 77, pin 75, double lever 72-74 and rod 69; the guide rails 6 are movable by hand rotation of a similar ring; and the air for ejection of the capsule into the cup 5 is fed from pipes 71 through apertures 56 in said pads 33.
Patent GB-370994-A (GB)
Title: Improvements in and relating to internal combustion engines of the diesel or semi-diesel type
IPC: F02B3/00
Filed: 1930-10-11
Abstract: 370,994. Two- and four-stroke-cycle engines; valves. SLOAN, J. J. E., Holmfield House, Mossley Hill, Liverpool. Oct. 11, 1930, No. 30442. [Classes 7 (ii) and 7 (vi).] In a multi-cylinder Diesel engine hot combustion gases are added to the cylinder charge during the compression stroke, the supply of gases being controlled by a rotating or reciprocating sleeve valve which surrounds the piston. The Figure shows one of the cylinders of a three-cylinder engine in which the normal admission and exhaust and byepasses for the combustion gases are controlled by a sliding sleeve valve driven from an eccentric 8. The tube is provided with an exhaust port 10, and with an admission port 12 which coacts both with the normal inlet passage 13 and with a byepass or duct 14 common to all the cylinders and through which hot gases are conveyed to the appropriate cylinder. The engine may work on the two- or four-stroke cycle. Cooling. To diminish the cooling during the compression stroke the sleeve valve controls ports 16, 17 which lead the cooling fluid into and out of the cooling spaces 15. The fuel oil may be used as a cooling medium. In modified forms of cooling, (1) jets of water impinge upon the cylinder heads or walls during the exhaust and suction strokes ; (2) the cylinders are provided with rotating or reciprocating shields which mask them from the air during the compression and working strokes.
Patent GB-188535-A (GB)
Title: Improvements in vehicles used for carrying or transporting goods in trays
IPC: B60P3/025
Filed: 1921-11-16
Abstract: 188,535. Jones & Sons, Ltd., S., and Jones, S. Nov. 16, 1921. Tram carriages for mills and workshops.-Relates to vehicles for transporting goods in trays. Metal stays e, e<1> carry angle-irons f forming a set of racks for supporting-trays g. the angle-irons are lower at the centre than at the ends, forming a flattened V and causing the trays to gravitate towards the centre of the vehicle. Curtains i, or hinged or sliding doors, may be provided at the sides of the vehicle. The trays or the racks may be provided with runners or with ribs to engage depressions in the opposite member.
Patent GB-913732-A (GB)
Title: Improvements in and relating to butt-welding clamps
IPC: B23K37/053
Filed: 1961-08-24
Abstract: 913,732. Welding by fusion. HARMES, O. B., and LADISH CO. Aug. 24, 1961, No. 30614/61. Class 83 (4). A clamp for use in butt-welding workpieces W of equal circular sections comprises a pair of arcuate bifurcated clamping jaws 66, 67 having their open ends pivotally connected as by links 68 to provide a circumferentially open area extending continuously between the branches of the jaws 66, 67 and between the links 68 over the greater part of the periphery of the workpieces W to provide access for a welding torch to butt-weld the workpieces W held in the clamp. The branches of the jaws 66, 67 are solidly connected at their ends away from the links 68. Handles 69, 70 serve to close the jaws 66, 67 which are retained closed by a catch 71 pivoted on one handle 70 and having a hooked end engaging the other handle 69. Cut-aways 72, 73 in the jaws 66, 67 enable an elbow 61 to be clamped to a pipe 60. In a pipe-welding machine, a tripod 34 carries a control unit 32 and an annular frame 10 having interchangeable supports 18, 19 to which the pipe 60 may be secured by a clamping unit 20, 21 having an actuating lever 22. A ring 24 rotatably mounted by rollers 25 in an annular track 27 on the frame 10 carries a shaft 28 on which is pivotally mounted a bracket 11 carrying a gas-shielded non-consumable electrode arc-welding torch 30. The bracket 11 is adjustable axially of the shaft 28 by a threaded collar 55 and a spring 52 attached to the bracket 11 pulls the torch 30 towards the work, the correct spacing being maintained by an adjustable work-engaging stop 51 secured to an arm 50 in the bracket. A manuallyreleased spring detent 46 retains the torch in inoperative position. The ring 24 is rotated by a spring motor 14. Inert gas such as argon or helium is supplied from the control unit 32 - to the torch and also through a pipe 65 to a space under the joint and enclosed by baffles 62, 64.
Patent GB-306608-A (GB)
Abstract: 306,608. I. G. Farbenindustrie Akt.- Ges. Oct. 17, 1927. Divided on and addition to 279,445, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 21, 1927. Hormones are obtained for the hearts of warmblooded animals by treatment with water-soluble organic solvents. Fresh heart tissue (containing water) may be extracted, and the aqueous solution remaining after expelling the organic solvent may be treated with water-insoluble organic solvents to remove lipoids, or may be desiccated and further treated by the process described in the example given in the parent Specification; or dried heart tissue may be extracted with a mixture of water and water soluble organic solvent or may be first extracted with a, water soluble solvent and then with water to obtain the active substance. According to an example heart tissue is extracted with acetone, the solution is cooled, deposited impurities are filtered off, the filtrate is concentrated, lipoids are removed from the aqueous solution so obtained by means of a solvent such as methylene chloride, and the remaining solution is sterilized by heating or by the addition of an antiseptic such as tricresol or phenol.