baber/WOPTO huggingface dataset:
Patent GB-1410701-A (GB)
Title: Schottky barrier diode semiconductor structures
IPC: C23C14/58
Filed: 1973-01-02
Abstract: 1410701 Semi-conductor devices SIGNETICS CORP 2 Jan 1973 [3 Jan 1972] 178/73 Heading H1K In a semi-conductor structure comprising a body of silicon with emitter, base, and collector zones exposed at apertures in an overlying insulating layer a ternary alloy of platinum, nickel, and silicon from the body is formed in each aperture, the alloy contacting the base zone extending on to the collector zone to form a Schottky barrier diode therewith. In the described embodiment the zone configuration is conventionally formed by diffusions into a N type epitaxial layer on a P type silicon wafer. After removal of the masking oxide a fresh layer of oxide is provided and apertured at 44, 46, 47 (Fig. 4). The wafer is then placed with others in a vacuum chamber facing a target consisting of nickel with platinum strips on it. After cleaning the wafer surface by argon ion bombardment nickel and platinum from the target are R.F. sputtered on to the wafer surface. A brief heating at about 450‹ C. in the chamber or in a separate alloying furnace alloys the two metals to the silicon in a solid phase reaction to form a mixed silicide. After removal of unreacted nickel and platinum from the oxide with sulphuric acid, gold or aluminium is evaporated overall and reduced by photolithography to tracks extending to the silicide layers in apertures 44, 46, 47. The silicide in aperture 47 extends on to the collector region 32 of the transistor to form therewith the Schottky diode which acts as a Baker clamp, while that in the other apertures is in ohmic contact with the emitter and collector zones. Reference has been directed by the Comptroller to Specification 1,252,565.
Patent GB-103294-A (GB)
Title: Improved Process for Obtaining Vitamine Preparations.
IPC: A61K31/16
Filed: 1917-01-04
Abstract: 103,294. Ges. fur Chemische Industrie in Basle. Jan. 7,1916, [Convention date]. Medicines for internal use; hypodermic injections.-Vitamines for use in therapy are obtained from rice husks, yeast, flesh, milk, beans, &c. by extracting the material, which may have been opened up previously by mechanical treatment, hydrolysis, digestion, or otherwise, with dilute alcohol. Alcohol is removed by distillation under vacuum, and the remaining aqueous solution is treated successively in acid and neutral condition with lead acetate and basic lead acetate respectively, so as to precipitate inactive ingredients. The filtrate is treated for the removal of lead, and either directly evaporated to dryness in a vacuum, or treated with a precipitant'such as phosphotungstic acid, tannin, mercuric sulphate, or other heavy-metal salt, and the resulting precipitate decomposed in the usual manner to give a solution of the free vitamine, which is then evaporated to dryness. The remedy may be administer per os or by injection.
Patent GB-553584-A (GB)
Title: An improved composition board or slab or pre-cast building element for floors, walls, ceilings, doors or other parts of buildings or structures
IPC: E04C5/07
Filed: 1942-01-07
Abstract: 553,584. Building blocks. HARDIE, A. Jan. 7, 1942, No. 256. [Class 87 (i)] A building element is formed of a moulded mixture of Portland cement, sand and a light weight material such as sawdust, corkdust, or ground spent shale having embedded therein non- metallic reinforcement of crossing strips, straws or strings of non-metallic material such as wood shavings, laths, bamboo, split saplings, wheat straws, osiers or paper strings, the strips &c. which lie in one direction having the ends of adjacent aligned strips overlapping each other. The elements may be in the form of slabs up to 10 ft. long, 6 ft. wide and two or more inches thick.
Patent GB-412944-A (GB)
Title: Improvements in and relating to radio receiving apparatus
IPC: H03G3/22
Filed: 1933-01-04
Abstract: 412,944. Valve circuits for wireless reception. STEVENS, S. A., and WESTING- HOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Jan. 4, 1933, No. 298. [Class 40 (v).] A dry contact rectifier 10 such as described in Specification 381,206 is connected in series with the radio-frequency byepass condenser 9 of a detector valve so that a voltage is produced and is used to control the gain of the preceding valves. A bridge rectifier circuit (Fig. 2, not shown), or a voltage doubling rectifier circuit (Fig. 3, not shown) may be used in place of the half wave rectifier shown. A battery may be inserted in series with the rectifier to produce a delayed control or the control may be combined with the control arrangement described in Specification 413,731, and shown in Fig. 4.
Patent GB-1528463-A (GB)
Title: 2-equivalent yellow forming couplers
IPC: G03C7/305
Filed: 1975-01-03
Abstract: 1528463 Purine containing colour couplers AGFA-GEVAEBT 2 Dec 1975 [3 Jan 1975] 314/75 Heading C2C [Also in Division G2] A photographic ketomethylene yellow-forming colour coupler has a methylene group carrying a 2,6-dioxo-7-purinyl group in its oxo or enol form which may be substituted. The coupler may have the formula where Cp is a ketomethylene colour coupler residue linked through its active methylene group; each of R<SP>1</SP> and R<SP>2</SP> is H, optionally substituted alkyl or aryl; and R<SP>3</SP> is H, OH, alkoxy, mercapto, cyclic amino, alkylthio, carboxy, alkoxycarbonyl, carbamoyl or optionally substituted alkyl, aryl, or amino. In all the specified couplers. R<SP>1</SP> and R<SP>2</SP> are CH 3  and R<SP>3</SP> is H. α-(2-Hexadecyloxybenzoyl)-α-(1,3- dimethyl - 2,6 - dioxo - 7 - purinyl) - 2<SP>1</SP>,5<SP>1</SP>- dimethoxy - 4<SP>1 </SP>- N,N - dimethylsulphamoylacetanilide is prepared by refluxing theophylline, tetramethylguanidine and α-chloro-α-(2- hexadecyloxybenzoyl)- 2<SP>1</SP>,5<SP>1</SP> - dimethoxy- 4<SP>1</SP>- N,N - dimethylsulphamoylacetanilide in acetonitrile. Other couplers are prepared similarly.
Patent GB-843864-A (GB)
Title: Improvements in or relating to object-feeding apparatus
Inventor: HILTON RAYMOND KENNETH
IPC: B65G47/68
Filed: 1958-01-03
Abstract: 843,864. Feeding articles. GENERAL ELECTRIC CO. Ltd. Jan. 5, 1959 [Jan. 3, 1958], No. 321/58. Class 78 (1). Foot tubes for lamps, are-delivered by conveyer 42 into hopper 8, the tubes falling on to dished table 1 therein and being engaged by stationary arm 7 as they are swept round so that they mount up to annular ledge 4 formed on the periphery of the table and are carried along by the ledge to be discharged by guide 11 into shoot 12. Prevention of blockage.-If a blockage occurs at 11, then air blown from tube 28 into tube 26 will in turn be blocked by the tubes. This permits the mercury level in limb 25 of the U-tube shown to rise, so that contacts 21, 22 are made. This energizes solenoid 19 which swings out deflecting plate 18 to deflect the oncoming tubes back into the dished table. Additionally, plate 17 deflects the non-aligned tubes back into the table. Specification 813,483 is referred to.
Patent GB-1182561-A (GB)
Title: Grinding Wheel Guard and Safety Shutter for Abrading Machines
IPC: B24B55/06
Filed: 1968-01-03
Abstract: 1,182,561. Machinery guards. NORTON CO. 3 Jan., 1968 [3 Jan., 1967], No. 400/68. Heading F2J. In a grinding wheel guard comprising a fixed section 1 and an adjustable hood portion 6, 6<SP>1</SP>, a shutter 12, 12<SP>1</SP> is pivotally mounted within the hood portion by means of a four-bar linkage 10, 11, and is retained in a retracted position by means of shear pins 14. In the event of accidental destruction of the grinding wheel 2, some broken fragments of the wheel are received within the housing 1, and some fragments impinge upon the shutter 12, 12<SP>1</SP> causing the shear pins 14 to sever and the shutter to move in a clockwise direction to the position shown dotted, a lip portion 15 of the shutter engaging a lip 9 on the hood to limit further movement of the shutter. The hood 6, 6<SP>1</SP> is mounted on the fixed guard section 1 by means of a pivot pin 5, and clamping bolts 8 engage arcuate slots 7 in the side walls 6<SP>1</SP> in order to adjustably clamp the hood in a position in which a lip portion 13 of shutter 12, 121 lies closely adjacent to the circumference of the grinding wheel 2.
Patent GB-1280251-A (GB)
Title: Vitreous enamel for use as a ground coat
Inventor: SVIRSKY LAZAR DAVIDOVICH
IPC: C03C3/064
Filed: 1970-01-05
Abstract: 1280251 Vitreous enamel KHARKOVSKY ORDENA LENINA POLITEKHNICHESKY INSTITUT IMENI V I LENINA 5 Jan 1970 425/70 Heading C1M A vitreous enamel for use as a ground coat for metals and alloys consists of the following ingredients in weight per cent: SiO 2  30-65 CaO 0À2-15 Al 2 O 3  2-9 MgO 0-1 Na 2 O and/or K 2 O, total 12-25 B 2 O 3  8-30 Fe 2 O 3  0-0À5 BaO 0-5 Mn 2 O 3  0-3 CuO 2À5-5À0 and in addition, F 2-9 (above 100%). The enamel is particularly effective when applied to mild steel containing 0À05-0À2 wt. per cent carbon.
Patent GB-123127-A (GB)
Title: Improvements in and relating to Spring Suspensions for Vehicles.
Inventor: BELDEN EDWARD HALE
IPC: B60G11/06
Filed: 1918-01-08
Abstract: 123,127. Belden, E. H. Jan. 8, 1918. Springs, arrangement of.-A vehicle frame, preferably having a converging front portion and made of channel section, has cantilever springs 14 attached by their butt ends to near the centre of the front, the rear ends diverging to their point of connexion with the axle, radius bars 23 parallel to the springs also being arranged between the frame and the axle. The connexion of the radius bars to the frame and axle may be either by a clamping ring or pivotal arrangement at the butt ends or by bolts or pivot at the axle, the bolt passing preferably through axle, spring, and radius bar. The radius bar may be above or below the spring and may have its rear end bent to form the attachment bolt or pivot. Spacing blocks may be employed in the channel frames for the springs &c., the securing yoke may form or have mounted on it the block plate or stud for the attachment of the radius bar, and the securing shackles or bolts for the yoke may be used for the attachment of the radius bars.
Patent GB-709310-A (GB)
Title: Power steering booster
IPC: B62D5/087
Filed: 1952-01-07
Abstract: 709,310. Fluid-pressure servomotor-control systems. GARRISON, R. A. Jan. 7, 1952, No. 495/52. Class 135 Power-assisted steering gear, e.g. for a vehicle comprises a hydraulic piston and cylinder motor 11, Fig. 1, for moving the road wheels and controlled by a piston valve 10 actuated by relative movement between the plunger 53, Fig. 2, and sleeve 34 due to movement of the drag link 23 by the steering wheel through the drop arm 14. The valve comprises a block 32 having connections 36 ... 39 respectively from an engine driven pump 21, to the reservoir 22 and to opposite ends of the motor cylinder 42, and leading into annular grooves 46 ... 49. Groove 46 communicates via a bore 50 in the block with a groove 51, and groove 47 communicates via a similar bore with a groove 52. The sleeve 34 is fixed in the block by plates 30, 31 and slidable therein is the hollow plunger 53, which has lands 76, 77 disposed, with the valve in neutral position, centrally between and having negative lap with respect to sets of ports 78, 79 and 80, 81 respectively. Ports 78, 79 connect with groove 48 and connection 38, and ports 80, 81 with groove 49 and connection 39. Supply pressure enters the sleeve via connection 36, groove 46, bore 50 and groove 51, and also passes to the interior of plunger 53 through ports 90. With the valve in neutral position, supply pressure bleeds through ports 78, 81 to both ends of the cylinder, and passes through ports 79, 80 back to the reservoir connection 37. Relative movement between the plunger and sleeve joins one of connections 38, 39 to the supply and the other to exhaust. Pressure entering the plunger passes through ports 91 into chambers 92 to act against pistons 84, 85, which urge the plunger 53 to its neutral position. A sleeve 27, rigid with the block 32 and link 23, contains a plunger 57 carrying the steering arm ball joint 29 and urged to a central position by similar springs 64, 70. The springs act against spring seats 60, 65, respectively, the flanges 61, 68 of which are permitted slight lost motion. The plunger 53 is connected to the plunger 57 by a rod 55. Thus, when the drag link 23 is moved, and the resistance of the road wheels is sufficient to hold the steering arm 20 and its ball 29 stationary, one of springs 64, 70 will be compressed and the lost-motion of the associated flange 61, 68 taken up, causing the sleeve 34 to move along the plunger 53. Hydraulic fluid is supplied to the motor to move the wheels in the appropriate direction, and the movement of the road wheels is transmitted via the arm 20 to recentre the plunger 53. Pressure in the chambers 92 assist the springs 64, 70 in resisting relative displacement of the sleeve and plunger and provides feel at the steering wheel. If the fluid supply fails, the wheels are steerable directly, being subject to the slight lost-motion of flanges 61, 68.
Patent GB-556933-A (GB)
Title: Improvements in means for loading bombs on aircraft
IPC: B64D1/22
Filed: 1941-01-14
Abstract: 556,933. Winches. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and BELL, J. E. Jan. 14, 1941, No. 514. [Class 78 (v)] [Also in Groups XXXIII and XXI] A traversing carriage for transferring bombs between the fuselage or hull of an aircraft and a release position beneath a wing, is fitted with one or more lifting winches so that after a set of bombs has been loaded and stored within the fuselage or hull a second set may be lifted and carried within the aircraft suspended from the winches. Two such carriages 10 are shown, one on each wing, the carriages having rails running upon rollers mounted within channels in the wings the openings to which are closed, when the carriages are inboard, by shutters 18 attached to each carriage at 23. The shutters are wound on drums 19 as the carriage moves outwards, the drums being turned by cables 20 attached to each carriage. The carriages are traversed by electrically driven winches 14 and endless cables 15. Each carriage has two winches 24 having cable drums 36 for lifting and lowering two bombcarrying beams 41. The winches are selectively driven from an electromotor through gearing in a casing 26, the appropriate gear being selected by linkage actuated by a hand lever. The spindles of the winches have screwed ends 42 for moving levers 44, Fig. 6 leaving stops 46, 47 for actuating limit switches 48, 49 to prevent overwinding in either direction. In addition, an adjustable stop 54 on the lever 44 moves a detent 55 into the path of a projection 56 on the drum 36 just after the switch 49 is actuated to prevent the whole of the cable from being paid out. The appropriate set of switches is selected by plugging the leads into sockets A or B, a guard 301 connected to the lever preventing the wrong sockets from being used. In addition to being electrically driven the winches may alternatively be driven by hand from the ground, for which purpose a chain passed over a pulley 32 turns a shaft 33. The shaft 33 is coupled through a torque-limiting clutch 52 and chain 34 to a shaft 35 connected to the winch gearing. In this case the detents 55 prevent overwinding in one direction and conical stops on the cables engaging conical fairleads on the frame limit overwinding in the other direction. A hand-wheel on the shaft 35 enables the winches to be actuated from inside the aircraft. Bolts 60 engaging slots in the conical stops and fairleads, not shown in Fig. 6, are provided for positively supporting the bomb load. Bv these means one set of bombs may be loaded into racks 59 in the fuselage and a second set kept suspended on the carriages and carried inboard or moved outboard as required.
Patent GB-552514-A (GB)
Title: Improvements in and relating to camouflage nets and materials therefor
IPC: F41H3/02
Filed: 1942-01-14
Abstract: 552,514. Netted fabrics; chenille fabrics; looms; camouflage. SWAINE, A. E., and FIRTH & SONS, Ltd., T. F. Jan. 14,1942, Nos. 539 and 3814. [Classes 142 (ii) and 142 (iv)] [Also in Groups VIII and X] A netted fabric for camouflage or other purposes is composed wholly or partly of strips of chenille woven fabric. In one form, Fig. 3, strips c of chenille material are interlaced with the meshes of a string net d. In another form strips of chenille material are assembled in crossing relation and tied together at the crossing points to form a net. In a a further form, Fig. 5, tufting yarns bare interwoven with spaced groups of doup yarns a, and spaced picks of chenille strips c are introduced in the place of the tufting yarns. The strips c are supplied of such length that when the tufting yarns are cut the fabric can expand to form a net. Looms. The knives for cutting the tufting yarns may be secured to the breast beam, and the knives which have downwardly inclined cutting edges may be extended forwardly to provide hook-like fingers which hold the strips c clear of the knives.
Patent GB-488618-A (GB)
Title: Improved cam mechanism for converting rotary motion into linear motion in two or more directions successively
IPC: F16H35/00
Filed: 1937-01-08
Abstract: 488,618. Endless - band propellers. SIMS, A. L. Jan. 8, 1937, No. 605. [Class 114] [Also in Groups XXIV and XXXI] Relates to mechanism for converting rotary motion into linear motion in two or more directions successively, comprising a polygonal internal cam track provided with two or more polygonal followers of geometrically similar form to the track. In a modification, adapted for the propulsion of land vehicles and ships, elongated hexagonal tracks 1, 3 are formed in a plate 4 mounted at the side of the vehicle or craft, the followers 2 being actuated by a chain 22 driven by a sprocket wheel 23 and guided by jockey pulleys 25. The followers carry paddles 41. The invention is also applicable to operating machine tools, and to carding or combing machines.
Patent GB-522341-A (GB)
Title: Improvements in or relating to water-cooled cylinder heads of internal combustion engines
IPC: F02F1/36
Filed: 1939-01-09
Abstract: 522,341. Cooling cylinders. PERMOLD CO. Jan. 9, 1939, No. 675. Convention date, Jan. 20, 1938. [Class 7(ii)] The inner wall of a water-cooled cylinder head is strengthened by connections 40 to the outer wall 10 which is stiffened by ribs 41, 42, the major portions 41 of which are outside the cylinder head. The connections 40 are located over the cylinder bores, but further connections 46 are arranged between the central bores. The ribs extend between the stud bosses 35 which also connect the walls. The cooling water passes from the cylinder jackets through holes in the inner wall of the head and leaves by a connection 14. The cylinder head of a six-cylinder engine is also described in which the ribs and connections are multiplied. The head may be made of copper or aluminium, or their alloys.
Patent GB-907362-A (GB)
Title: An improvement in or relating to gear units
Inventor: ESKENAZI MAURICE
IPC: F16J15/02
Filed: 1960-01-08
Abstract: 907,362. Toothed gearing. BROWN INDUSTRIES Ltd., DAVID. Dec. 29, 1960 [Jan. 8, 1960], No. 690/60. Class 80 (1). To prevent loss of oil from a gear casing 11 having a shaft 10 emerging vertically downwardly through an opening in its base, the opening is surrounded by a removably fixed shroud 20 extending above the oil level into an annular recess 16 in the gear 15 on the shaft 10 so that the gear can run partly immersed in oil. As shown the oil level, determined by an overflow plug 29, passes through the axis of a worm 17 driving the gear 15. A hole in the gear 15 connects the air space in casing 11 with that in the shroud. The shroud 20 is removably mounted preferably through a resilient ring 21, to which it may be bonded, having a lip engaging a groove in the lower casing cover 13. Alternatively a synthetic rubber 0 ring may be used. Grease for the lower bearing 12 is supplied through a nipple 24 and is retained by a seal 26, a pressure relief valve 25 being provided. A washer 27 impedes the escape of grease into the shroud.
Patent GB-327958-A (GB)
Title: Improvements in or relating to knitted fabrics, methods of knitting such fabrics, and knitting machines therefor
IPC: D04B9/46
Filed: 1929-01-08
Abstract: 327,958. Wildt, E., Kolmes, H. H., and Wildt &. Co., Ltd. Jan. 8, 1929. Stockings and socks. - Antiladdering hose and half-hose, of silk, artificial silk or other smooth yarns, are made by supplying, in addition to the ground yarn 11, wale yarns 10 in such manner that a wale yarn is knitted by each needle in each course and each wale yarn is always knitted by the same needle. Specifications 313,657; 327,698, 327,998, 331,586, and 337,438, [all in Class 74 (ii), Knitting &c.], are referred to.
Patent GB-1347941-A (GB)
Title: Centrifuge with safety device for controlling excessive rotor oscillations
IPC: H01H35/14
Filed: 1972-01-07
Abstract: 1347941 Safety device for controlling rotor oscillations BECKMAN INSTRUMENTS Inc 7 Jan 1972 [28 April 1971] 742/72 Heading B2P [Also in Division H1] In a centrifuge including a rotor 10 and driving means 51, 52 for spinning the rotor at selected rotational speeds, a safety control device for interrupting power to the driving means in the event of excessive rotor oscillations comprises an actuating means 20 carried solely by the rotor 10 at its lower peripheral portion and switch means 40 disposed in spaced relation to the lower peripheral portion of the rotor adjacent the normal path of travel of the actuating means and connected in electrical circuit with the driving means 51 52, the switch means 40 being engageable by the actuating means 20 to open the electrical circuit and interrupt power to the driving means when the rotor undergoes excessive oscillations. The rotor 10 is drivingly connected by interengaging pins 16, 17 to a shaft 12 journalled in a mounting 13 and driven through gearing 52 by a variable speed electric motor 51. The rotor may be enclosed within a refrigerated liner 18 of a vacuum chamber 19. A resilient vacuum sealing member 22 expanded by a spring 23 extends between the chamber 19 and the mounting 13. The switch means 40 may include a movable pin 41 which normally presses against a U-shaped spring metal strip 42 which is in contact with a terminal bolt 48. The actuating means 20 may comprise a tubular housing 21 threadably secured in a radial bore in the rotor and an an adjustable set screw 25 threadably secured to the outer end of the housing and adapted to trip the pin 41 and open the control circuit associated with a magnetic starter 53 for the motor 51 to de-energize the latter when the rotor undergoes excessive vibrations. The set screw 25 may include a cylindrical bore in which a pin is located and is caused to break under shear forces upon the rotor exceeding a predetermined speed and to travel along the bore to engage the pin 41 and interrupt power to the drive motor 51. In a modification, Fig. 4 (not shown), the switching means consists of a turret assembly which may be indexed four times before requiring replacement of snap wires associated therewith and adapted to be snapped by the set screw 25. Reference has been directed by the comptroller to Specification 903,209.
Patent GB-218690-A (GB)
Title: Improvements in or relating to coke ovens
IPC: C10B11/00
Filed: 1923-01-09
Abstract: 218,690. Jackson, W. J. Mellersh-, (Koppers Co.). Jan. 9, 1923. Regenerators. - Expansion joints formed by gaps 32 and sliding bricks 32<a> are provided in the regenerator structure of an inclined coke-oven, the bricks 32<a> being arranged between the regenerator chambers serving, during heating by lean gas, for air.