baber/WOPTO huggingface dataset:
Patent GB-1107248-A (GB)
Title: Field-effect triode device
IPC: H01L29/76
Filed: 1965-08-05
Abstract: 1,107,248. Transistors. HUGHES AIRCRAFT CO. 5 Aug., 1965 [18 Aug., 1964 (2)], No.33573/65. Heading H1V. A field effect triode device comprises a body of semi-conductor material of one conductivity type containing a control grid of opposite type and a guard ring of high conductivity opposite type substantially surrounding the control grid. Fig. 9 shows a field effect transistor with a P- type grid region forming the gate region in layers 4, 4<SP>1</SP> of N-type silicon on a substrate 2 of N + or degenerate silicon; the gate grid region 6 is surrounded by a ring 10 of P+ material which concentrates current flow through the grid region. An N+ region 8 with metallic connection 14<SP>1</SP> constitutes the drain region and high conductivity region 2 constitutes the source. A metallic connection 14 is provided to ring region 10 and a further connection (not shown in Fig. 9) is provided to grid region 6. The layers and regions may be provided by diffusion, alloying or epitaxial deposition with the aid of oxide masking. The semi-conductor material may consist of Si; A1P; A1As; A1Sb; GaP; GaAs; InP; ZnS; ZnSe; ZnTe; CdS; CdSe; CdTe. HgS; or SiC and As, Sb, P, Al, B, In are mentioned as significant impurities. The metallic connections may consist of deposited A1; a gold-antimony alloy may be used to form N- regions by alloying. A coaxial assembly is described in which the field effect transistor is centrally mounted on the end of a rod which is connected to the source (or drain) while a pointed central conductor contacts the drain (or source) on the opposite surface. Wires, or a diaphragm (which acts as a screen) are used as connections to the gate electrode or region.
Patent GB-957628-A (GB)
Title: Reconstitutable acid solubilized collagen
IPC: A22C13/00
Filed: 1961-09-19
Abstract: Reconstitutable solubilized collagen is prepared by extracting native collagen fibres in an aqueous solution of an organic acid at a temperature above 30 DEG C., but not over 70 DEG C., to solubilize the collagen in the fibres, the organic acid having a concentration from 0.01 to 1 molar and being selected from citric, glycolic, lactic, hydroxybutyric, benzilic and glycerol phosphoric acids, the extraction being carried out and completed in a period of less than four hours. The solubilized collagen extract may be admixed with native collagen fibres and the resulting mixture formed, e.g. as sheets or threads.ALSO:Collagen in forms such as sheets or threads may be obtained by re-aggregating, e.g. by heat coagulation, neutralization or salting out, a reconstitutable solubilized collagen prepared by extracting native collagen fibres in an aqueous solution of an organic acid at a temperature above 30 DEG C., but not over 70 DEG  C., to solubilize the collagen in the fibres, the organic acid having a concentration from 0.01 to 1 molar and being selected from citric, glycolic, lactic, hydroxybutyric, benzilic and glycerol phosphoric acids, the extraction being carried out and completed in a period of less than four hours.  Native collagen fibres may be added to the solubilized collagen fibres before forming, which is preferably effected by treatment with a half-saturated ammonium sulphate solution made basic with ammonium hydroxide.
Patent GB-1271451-A (GB)
Title: A vehicle for handling and conveying large containers such as gas cylinders
Inventor: MULLER GEORGES
IPC: F17C13/08
Filed: 1969-07-03
Abstract: 1,271,451. Hand truck. COMMISSARIAT A L'ENERGIE ATOMIQUE. 3 July, 1969 [10 July, 1968], No. 33590/69. Heading B7B. A vehicle for handling a cylinder 83 comprises a chassis 1 with shafts 11, 13, a plate 33 slidable on the shafts and carrying gripping tongs 19, (21), and retractable supports 57, (59) on the chassis. The plate 33 is located by pins 43, (45) spring-biased into holes in the shafts. To pick up a cylinder the tongs are pressed open against the bottle neck, and closed around it by a spring (25). The bottle is lifted and pivots supports 57, (59) outwardly on pins (61, 63) on the chassis. The supports fall back on to stops (69) and the bottle is lowered on to them and conveyed away. To deposit the cylinder, its end is set down, levers 79, 81 operated to withdraw pins (61, 63) to release supports 57, (59), the cylinder set wholly down and the tongs drawn off the neck.
Patent GB-394876-A (GB)
Title: Improvements in or relating to spring seating, mattresses, and the like
IPC: A47C23/055
Filed: 1932-11-28
Abstract: 394,876. Spring upholstery. HAWKINS, J. E., 58, Parr Street, Liverpool. Nov. 28, 1932, No. 33597. [Class 52 (iv).] The end turns of springs b arranged in spaced relation are secured to upper and lower flexible surfaces a which are held taut by a framing of metallic strips or the like c not. directly connected to the springs. The strips may be in fabric pockets and preferably overlap at their ends.
Patent GB-1506058-A (GB)
Title: Liquid storage apparatus
IPC: B01L7/00
Filed: 1975-08-13
Abstract: 1506058 Reagent storage and dispensing SOCIAL SERVICES SECRETARY OF STATE FOR 20 July 1976 [13 Aug 1975] 33797/75 Heading G1B A liquid storage device for use for example as a reagent storage and dispensing device in the automatic analysis apparatus of Specification 1491879, comprises a base part 8, on the base part a heat insulated jacket 9 formed to carry a plurality of liquid storage containers 10 so they have at least their lower parts positioned in the jacket, cups 12 carried by base part 8 alongside the jacket and having upwardly facing openings, passage means for connecting the containers to the cups, means for maintaining the liquid in each cup at constant level, and means which may comprise a electrical heating element 37 in an air-inlet pipe 6 into the space within the jacket and a refrigeration system (not shown) also connected to pipe 6 at its lower end, arranged to maintain the temperature of the liquid storage containers at a predetermined value. The liquid take-off means may comprise respective liquid take-off cups 12 for the containers, the cups being for co-operation with a vertically displaceable liquid extraction device (not shown) on indexing of the containers to a particular position by rotation of base part 8 supporting jacket 9 &c. by means of a stepping motor (not shown), the stepping motor being controlled by encoder disc 25 fitted to gear 24 and stationary detector 26, each liquid storage container 10 in the embodiment shown being carried when in the jacket in the inverted position with a plug 14 at its lower end, the plug having hole 28 as an air vent and hole 29 as a liquid outlet hole normally closed by ball-valve 13 and opened when the container is in the position shown when pin 15 lifts the ball off its seat. The constant level arrangement for liquid in a cup 12 includes bores 35, 36 and overflow bore 17.
Patent GB-373101-A (GB)
Title: Improvements in mining apparatus
IPC: E21C31/00
Filed: 1930-11-10
Abstract: 373,101. Mining-machines. SULLIVAN MACHINERY CO., 400, North Michigan Avenue, Chicago, U.S.A. Nov. 10, 1930, No. 33854. Convention date, Dec. 18, 1929. Void [Published under Sect. 91 of the Acts]. [Class 68 (i).] In a coal-cutting machine of the wheeled type operating on a track, the cutter bar 130 is pivotally carried by an arm 125 pivoted to the gear-head casing 9, whereby the cutter bar may be positioned outside, and below the level of, the track. The cutter chain is driven through a shaft 127 and a chain 124 arranged within the arm 125 from a shaft in the gearhead casing, and the arm 125 is slued by means of a pinion in the gear-head casing engaging an internal gear carried by the arm. In Figs. 4 and 6, a flange 141 with notches 140 is carried by the cutter bar, and a rotatable pin 139, with a cut-away part 142, is adapted to engage one of the notches to lock the cutter bar in adjusted position. In Fig. 16, the cutter bar is adjusted by a worm-wheel segment 144 and worm 145 operated through reversible ratchet gearing 150 by a lever 151, the worm gearing locking the bar in adjusted position. The machine body is rotatably supported in a frame which may be raised or tilted relatively to the wheels, the arrangement, and the driving mechanism controlling the various operations, being as set out in the abridgments of Specifications 271,055 and 277,994, [both in Class 68 (i), Excavating earth &c.]. Band brakes on parallel shafts, from which the truck axles are driven by chains, are connected for operation by a common lever.
Patent GB-1433513-A (GB)
Title: Fuel injection nozzle for internal combustion engines
IPC: F02M45/08
Filed: 1973-07-17
Abstract: 1433513 Injection nozzles ROBERT BOSCH GmbH 17 July 1973 [18 July 1972] 33877/73 Heading F1B A fuel injection nozzle for I.C. engines comprises a valve needle 2 to control pre-injection and main injection flows of fuel from a pressure chamber 5 to which fuel is fed via a throttle 18 for pre-injection and via a channel 17 containing a valve 19 in parallel with the throttle 18, which is opened by the opening action of the valve needle 2 for the main injection. The pressure of fuel supplied to chamber 5 via throttle 18 raises valve needle 2 which allows a pre-injection fuel flow through opening 4 and by acting on stem 21 of valve 19 opens the latter to allow a main injection flow to reach opening 4 via passage 17. Channel 23 is provided to remove fuel that leaks past valve needle 2 or stem 21.
Patent GB-1146747-A (GB)
Title: Device for curling, waving or setting hair
IPC: A45D/
Filed: 1966-07-28
Abstract: 1,146,747. Device for curling or waving hair. E. MANDERVELD. 28 July, 1966 [4 Aug., 1965; 25 March, 1966], No. 34040/66. Heading A4V. A device for maintaining the hair curled comprises a substantially spherical elastic compressible spool having a slot provided in the circumference in a diametric plane, thus effectively forming two cheeks separated by a central core around which the hair is wound in order to curl, wave or set it. In Fig. 1 a sphere of preferably a foam material, e.g. a polyurethane or a polyether, is provided with a circumferential slot 2; a circular groove 3 is provided close to the bottom 4 of the slot in each of the cheeks 5 of the spool, thus defining a cylindrical core 6, the axis of which passes through the centre of the sphere. In use, the cheeks 5 of hemispheres 7, 8 (Fig. 2) are opened, and a lock of hair is curled around core 6; the hemispheres are then released, and the pressure of hair on the core 6 distorts the device, forcing the cheeks 5 against each other, and the walls 11 of the grooves 3 against the wound hair. The material of the device permits volume compression of fifty per cent. or more on the initial volume under distortion.
Patent GB-1140109-A (GB)
Title: Improvements in plug insert or nut fastening devices
IPC: F16B37/12
Filed: 1966-07-29
Abstract: 1,140,109. Nuts; screw sockets. TINNERMAN PRODUCTS Inc. 29 July, 1966 [2 Aug., 1965], No. 34071/66. Heading F2H. A fastener made from polymeric material, comprises a generally cylindrical body having a head 6, an axial bore 10 extending from the end opposite the head, a plurality of axially extending circumferentially spaced lands 16 in the wall of the bore, having concave inner surfaces and shoulder portions 20 spaced inwardly from the end, and ribs 22 on the exterior of the body. The bore 10 extends completely through the fastener, and has a countersink 12. The ribs may be formed helically. The bore may terminate adjacent the juncture of the body and head. The lands may be screwthreaded.
Patent GB-1062184-A (GB)
Title: A method of continuously producing alkali metal bicarbonates from alkali metal chlorides and carbon dioxide in the presence of triethylamine and apparatus for performing the same
Inventor: SCHMID PAUL
IPC: C01D7/16
Filed: 1963-08-28
Abstract: <PICT:1062184/C1/1> In a process for producing alkali metal (e.g. Na or K) bicarbonates an excess of triethylamine and carbon dioxide introduced into precipitation column 1 at 3 and 4 respectively flow upwards counter-current to alkali metal chloride solution introduced at 2.  Alkali metal bicarbonate suspended in triethylamine hydrochloride solution is withdrawn at 6. Unreacted triethylamine from 7 together with fresh triethylamine from 11 is pumped to inlet 3. Specification 942,009 is referred to.
Patent GB-392103-A (GB)
Title: Improvements in and relating to envelopes
IPC: B65D27/38
Filed: 1932-12-02
Abstract: 392,103. Envelopes. BUXTON, H. W., 3, 2nd Avenue, Hove, Sussex. Dec. 2, 1932, No. 34202. [Class 146 (ii).] In an envelope of the kind provided with an opening or tearing member gummed or otherwise secured to the closure flap in such a manner that a short length of the tearing member projects beyond the edge of the flap but does not extend beyond the edge of the envelope, the closure flap 6 at a position adjacent the crease or folded-over portion is of a length slightly less than the length of the envelope. The closure flap 6 may be shortened at one or both ends so that the tearing member may be grasped. In the form shown in Fig. 4, the tearing member is a tape 8 of fabric or strong paper and the severing takes place both at the crease 9 of the closure flap 6 and also at the position 10, with the result that the front edge of the envelope extends slightly beyond the remaining or fixed portion of the closure flap, thereby providing an extension lip facilitating separation of the edges adjacent the severed or torn portion. In the form shown in Fig. 3, the tearing member is a string 7 and the folded side flap is provided with an extension lip 12 thereby ensuring that the upper edge of the flap at this position extends level with the crease to a position in which it iscovered by the closure flap 6 ; in a modification this extension lip is omitted. In the case of large envelopes the tearing member may extend down the side of the envelope.
Patent GB-826807-A (GB)
Title: Improvements in or relating to tubular capacitors
IPC: H01G4/32
Filed: 1957-11-04
Abstract: 826,807. Electric capacitors. SIEMENS & HALSKE A.G.. Nov. 4, 1957 [Nov. 15, 1956], No. 34356/57. Drawings to Specification. Class 37. In a tubular capacitor including wound layers of heat-treated plastic film, the innermost wound layers forming the inside surface of the tube consist of metal foil electrically insulated from the metal foils forming the capacitor plates, thereby facilitating the removal of the core on which the capacitor is wound following heat treatment. These innermost metallic layers may be removed after the heat treatment. In the interior of the capacitor, a second capacitor may be located, Fig. 2 (not shown).
Patent GB-1467745-A (GB)
Title: Disposable diaper
IPC: A61F13/49
Filed: 1975-08-19
Abstract: 1467745 Laminates; finishing edges JOHNSON & JOHNSON 19 Aug 1976 [20 Aug 1974] 34414/75 Headings B5N and B5K [Also in Divisions A5 and D1] A disposable diaper having one fibrous layer comprises (1) a porous batt 12 composed at least primarily of cellulosic fibres less than 1/4 inch in length and (2) a water-impervious backing sheet 11 adjacent one surface of the batt and bonded thereto by adhesive at least on spaced areas of the surface, fibres of the batt being bonded together by a resinous binder covering the surface opposite the backing sheet and extending through the thickness of the batt in spaced linear zones 18. The adhesion of the batt to the backing sheet may be continuous, e.g. by application of the binder to the surface of the batt to be bonded to the backing sheet, alternatively, the adhesion may be by lines, dots or other discontinuous areas distributed throughout the area of contact or by a marginal area completely around the outer edges of the diaper or only on the side edges thereof. The batt, which may be of uniform thickness or which may be thicker on its mid-portion than at its edges, may be formed of loosely compacted fibres, e.g. wood pulp fibres, cotton linters or mixtures thereof, optionally admixed with textile length fibres, either uniformly throughout the thickness thereof or non-uniformly to provide a greater concentration of textile length fibres at the surface of the batt opposite the backing sheet. In a preferred embodiment, the batt has a densified skin 14 on the surface adjacent the backing sheet, the skin being made by lightly moistening the surface of the batt and thereafter compressing the batt between compression rollers. In the embodiment shown, the resin binder covered surface is in the form of a skin 16 carrying a series of grooves 17 aligned with the zones 18 of binder. The binder may be thermoplastic or thermosetting, may be applied as an aqueous emulsion or dispersion, e.g. a fine spray, preferably in the form of a froth or foam and may comprise a self-crosslinking latex of polyethylacrylate containing small amounts of acrylonitrile and a cross-linking monomer. The diaper may be made by applying a liquid resinous binder to a surface of the batt, compressing the batt in spaced linear zones to cause the liquid binder to move throughout the whole thickness of the batt in each zone, solidifying the binder and adhering the surface of the batt opposite the binder treated surface to the backing sheet. The preferred method of distributing the binder comprises compressing the batt between a smooth surfaced roller and a roller having ridges corresponding to the spaced linear zones.
Patent GB-1361935-A (GB)
Title: Method for the production of protective articles for use in con junction with prostheses
IPC: A61F2/78
Filed: 1972-07-24
Abstract: 1361935 Wearing apparel manufacture D BELZIDSKY 24 July 1972 [23 July 1971] 34443/72 Heading A3V [Also in Division A5] A process for the manufacture of a protective article for use between the stump of a patient with an amputated limb and a prosthesis comprises knitting a stump sock and wearing a protective sheath in a size larger than required to allow for shrinkage in processing, steam prefixing the shape of the sheath and the stump sock on the same form and subsequently degreasing and free-drying in hot air to swell the mesh, the same form being used as before.
Patent GB-1117697-A (GB)
Title: Process for the production of 1,2-dichlorethane
Inventor: LEUCH HANS
IPC: C07C17/156
Filed: 1966-08-01
Abstract: 1,2-Dichloroethane is produced by reacting ethylene with hydrogen chloride and oxygen at a temperature of 260 DEG  to 280 DEG  C., in the presence of a catalyst and a steam - hydrogen chloride mixture as diluent.  The reaction products may be quenched by a counter-current flow of cold 1,2-dichloroethane and the aqueous phase which separates out may be recycled.  Specified catalysts are metal halides, e.g. cupric chloride, optionally supported on clays or refractory oxides or hydroxides of aluminium.
Patent GB-994432-A (GB)
Title: Improvements in or relating to rotary engine transmission systems
IPC: F02B53/00
Filed: 1961-09-27
Abstract: 994,432. Rotary engines. PAGIE NATIONALE DES USINES RENAULT. Sept. 27, 1961 [Oct. 19, 1960], No. 34585/61. Heading F1F. In a transmission system for a rotary engine comprising a rotor 2 rotatably mounted on an eccentric 6 fixed to a crankshaft 5 and having meshing gears 11, 13 rigid respectively with the rotor, and a stator 3, the engine output is transmitted through a gear train comprising a gear 14 rigid with the rotor and a gear 15 rigid with an output shaft 16. The gears 14, 15 may be respectively externally and internally toothed, as shown, or vice versa (Fig. 2, not shown).
Patent GB-1051347-A (GB)
Title: Sterilisation devices
Inventor: BOWIE DAVID ALEXANDER
IPC: A61L2/07
Filed: 1964-08-24
Abstract: 1,051,347. Sterilizing milking machines. D. A. BOWIE. Nov. 12, 1965 [Aug. 24, 1964], No. 34636/64. Heading AIM. Apparatus for use in steam sterilizing milking machines comprises a water container 1 having in its base an electrical heating element and at its top a multi-way valve 7 carrying outlet connectors 8 adapted to be inserted in the stall tubes of the machine, a control handle 9 being provided so that the valve can be set to allow steam to pass through each connector 8 in turn.
Patent GB-1094295-A (GB)
Title: Devices for restricting the flow of fluid
Inventor: DUNSTAN THOMAS WILLIAM ARMSTRO
IPC: F16K47/06
Filed: 1964-08-25
Abstract: 1,094,295. Regulating fluid-flow. JOSEPH LUCAS (INDUSTRIES) Ltd. July 13, 1965 [Aug.25, 1964], No.34675/64. Heading G3H. [Also in Division F2] Fluid-flow from an inlet 10 to an outlet 13 e.g. leading to atmosphere, passes between coils of a tubular restriction 23 and through radial ports 16 in a body 15 into an annular space in the latter before entering the outlet 13 via the interior of the restriction 23. The tubular restriction is wound around a screw thread on the extension of the body 15. The coil restrictor also serves as a filter for fluid entering the annular space. A shoulder 19 on the outlet end of the body 15 coacts with a seat 20 at the inlet end of the outlet 13 and should the atmospheric pressure exceed the inlet pressure by an amount greater than that which can escape through the restriction then the shoulder 19 is inserted against a spring 22. The body 15 may be dispensed with.
Patent GB-172864-A (GB)
Title: Improvements in separating and purifying anthracene and carbazole
IPC: C07D209/84
Filed: 1920-12-08
Abstract: Crude anthracene is purified by dissolving it in hot cresols, or the mixture of phenol and cresols known as 60 per cent phenol, cooling and filtering, and washing the separated anthracene with petroleum ether.  Carbazole may be separated from the anthracene so purified by dissolving the anthracene in hot pyridine, cooling, removing the separated anthracene, and distilling the pyridine solution to recover the carbazole; the carbazole may be purified by crystallization from toluene and sublimation.  Specification 119,855 is referred to.
Patent GB-1361697-A (GB)
Title: Plant for purifying sewage
IPC: B01D21/02
Filed: 1972-07-26
Abstract: 1361697 Activated sludge plant J BOSJE 26 July 1972 [20 Aug 1971] 34899/72 Heading C1C An activated sludge plant comprises a tank 2 having a partition 3 and at least one aerator (two in the embodiment shown 4,4<SP>1</SP>) and at least one settling tank 12 and at least one thickening pond 22 positioned within the space substantially enclosed by tank 2. Chamber 27 contains apparatus for operating the plant and space 28 may serve as a workshop or the like. In use sewage is fed into tank 2 from line 5 via pits 6 and 8 and circulated around the circuit therein by surface aerators 4. The aerated liquid is passed over adjustable weir 10 and is passed into settling tank 12. The clarified liquid is discharged via overflow 13 and the settled sludge scraped by a scraper mounted on rotary bridge 17 is passed into pit 19 from which it is returned to tank 2, any excess sludge being passed to pond 22 from which it is returned to pit 19 or pumped to drying beds (not shown). The drying beds may be in the space enclosed by the tank 2.