baber/WOPTO huggingface dataset:
Patent GB-1103796-A (GB)
Title: Unipolar semiconductor device
IPC: H01L29/861
Filed: 1965-11-19
Abstract: 1,103,796. Semi-conductor devices. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 19 Nov., 1965 [23 Nov., 1964], No. 49259/65. Heading H1K. In a semi-conductor device comprising two electrode bearing layers of one conductivity type separated by a layer comprising at least a sub-layer of the opposite type, the arrangement is such as to give an asymmetrical conduction characteristic between the electrodes. The thickness and impurity concentration of the intermediate layers are selected so that under zero bias the electrostatic potential energy of the carriers which are in the majority in the end layers nowhere in the device exceeds the Fermi level. As a result, conduction in the device is essentially unipolar but the concentration of any residual carriers characteristic of the conductivity type of the sub-layer may be further reduced by incorporating recombination centres therein, e.g. by particle bombardment or impurity diffusion. In a typical device of NPIN structure in which the impurity concentration of the N zones is 8 x 10<SP>18</SP> atoms/c.c. and of the P zone 10<SP>13</SP> atoms/o.c., the P zone is less than 7 x 10<SP>-4</SP> cm. thick and the intrinsic zone about 10<SP>-3</SP> cm. thick. Alternatively, the P zone may be doped to 10<SP>16</SP> atoms/c.c. in which case it should be less than 2À3 x 10<SP>-3</SP> cm. thick. Adjacent the electrodes the N zones may be doped to degeneracy. Two structures of the above type may be disposed back-to-back with the P-adjacent N-type zones common to form a triode with the control electrode on the common zone. One structure is forward biased to inject hot electrons through the P zone. These rapidly traverse the other collector structure which is reverse-biased. Such transit may be further facilitated by constructing the second structure with a lower potential barrier than the first.
Patent GB-1400038-A (GB)
Title: Sterilization and/or cooking of products such as food
Inventor: BEAUVAIS MAX
IPC: A23B7/00
Filed: 1972-10-26
Abstract: 1400038 Sterilization ETABS J J CARNAUD ET FORGES DE BASSE INDRE and M BEAUVAIS 26 Oct 1972 [29 Oct 1971] 49403/72 Heading A2D Canned products are cooked or sterilized by (a) filling cans with the products and adding to each can a small amount of an aqueous liquid, (b) non-sealingly securing covers to the cans, (c) passing the cans with their longitudinal axes inclined to the horizontal past a heat source so as to boil liquid collected at the bottom of each container, (d) sealing the covers tight to their containers, (e) heat sterilizing and (f) cooling the cans. The cans are rotated about their longitudinal axes at least during steps (c) to (f). The cooling may be effected by spraying with cold water. The aqueous liquid e.g. water, may be added in an amount from 5 to 20% of the filled volume of the cans.
Patent GB-1087671-A (GB)
Title: Improvements in or relating to swimming bath dividing booms
Inventor: ORNER WALTER
IPC: E04H4/14
Filed: 1964-12-04
Abstract: 1,087,671. Swimming bath dividing booms. CONTEMPORARY INDUSTRIES (ENGINEERING) Ltd. March 3, 1966 [Dec. 4, 1964], No. 49426/64. Heading A4N. A boom adapted to extend across a swimming bath, comprises a framework clad with sheets 25 of metal, plastic or other suitable material, said framework having at least three longitudinal surfaces, two of which are at right angles to each other, and means 14 for rigidly locking the ends of the boom to the sides or edges of the bath. The ends of the boom are provided with slide members 13 which move in horizontal channels 29 in the side walls of the bath thus enabling the bath to be shortened or lengthened according to requirements. In Fig. 1 the boom is shown fitted with removable screens 10 and starting blocks 11. The preferred form of the boom is triangular in cross-section and is arranged so that its upper surface is horizontal and flush with the bath surround 12. The boom may be buoyant and may be adapted to be stored on the bottom of the deep end of the bath.
Patent GB-1079904-A (GB)
Title: Improvements in and relating to metallurgical devices, in operation coming into contact with metal melts such as iron and steel melts
IPC: B22D41/02
Filed: 1965-11-22
Abstract: Parts of devices for holding metal melts are made of material sintered from 20-85% by volume of molybdenum and/or tungsten and a ceramic material such as zirconia.  The metallic constituents can contain up to 50% by weight of chromium, and the ceramic constituents up to 10% by weight of calcium or magnesium oxide and/or up to 50% by weight of thorium, hafnium or titanium oxide.
Patent GB-1359876-A (GB)
Title: Method for mounting bearing members
IPC: H02K5/167
Filed: 1971-10-25
Abstract: 1359876 Mounting bearings OVERUMS BRUK AB 25 Oct 1971 [23 Oct 1970] 49497/71 Heading F2A The journal bearings of a member which rotates in a cavity in a housing 1 are secured in their correct position by inserting into the cavity a mandrel A which is so formed as to be accurately centred by the cavity, and providing at each end of the housing a bearing support member 4 and a bearing member 5, the support and bearing member being correctly positioned by guide means A<SP>1</SP>, A<SP>11</SP> which are located on the mandrel. The supporting members are fixed to the housing by means of a binding agent B which is inert to the surface of the mandrel. At least one of the supporting members is formed of parts which are detachably connected to each other, and the parts are then disconnected to allow the mandrel to be withdrawn.
Patent GB-1110534-A (GB)
Title: Improvements in or relating to injection moulding machines and processes
Inventor: HARRISON PETER FRANKLIN
IPC: B29C45/56
Filed: 1965-11-22
Abstract: 1,110,534. Injection moulding machines. PECO MACHINERY Ltd. and P. F. HARRISON. 30 Nov., 1966 [22 Nov., 1965], No. 49528/65. Heading B5A. The volume of a mould cavity 12 and the injection pressure are controlled in dependence on the position of an injection plunger 17 during its working stroke. The control is dependent on instantaneous position of the plunger and is energized by a unit 23 connected electrically to switches 22 operated by the plunger, the injection pressure depending on hydraulic pressure in a plunger cylinder 20 and controlled by a walve 24, the cavity volume being controlled by a potentiometer 25 acting as a feed to a servo-control 27 linked to the unit 23 the control 27 acting on a valve 28 to control the pressure to a cylinder 16 which moves a platen 14 supporting a mould half 11 in telescopic arrangement with a fixed mould half 10. The inter-relation between the mould volume and injection pressure is predetermined and controlled by punch-card, datum-setting electric circuits or model curves using parameters such a time. The unit 23 may be controlled continuously by a potentiometer (30), replacing the switches 22. The cavity volume is either maintained at the required value during injection or is increased and then reduced to the required value to effect a compression moulding. In a modification (not shown) a three part mould is used, one part sliding telescopically and centrally within the periphery of another.
Patent GB-1212269-A (GB)
Title: Improvements in or relating to apparatus for applying a coil to an uncoiler
IPC: B21C47/24
Filed: 1968-10-21
Abstract: 1,212,269. Feeding coils to unwinding station. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. 21 Oct., 1968 [6 Nov., 1967], No. 49748/68. Heading B3E. [Also in Division G1] Apparatus for aligning a coil 5, to be unwound, coaxially with an uncoiler comprises a lifting table 3 and a feeler roller 7 respectively contacting the coil periphery at diametrically opposed points so that on lifting displacement of the table, respective linkages connected to the table and the feeler produce electrical signals from synchros 29, 35, which signals represent respectively the distance (A) from the uncoiler axis to the contact surface between the table and the coil and the distance (B) from the uncoiler axis to the contact surface between the feeler and the coil and which are fed to a comparator 41 which actuates a switch 43 to terminate movement of the table when the signals are equal, at which point (A) and (B) are both equal to the coil radius. The linkages comprise transmissions 10, 11 with restoring means 30, 36, whereby the system may be returned to its initial position when the coil has been secured on to a reel mandrel 2. The table carries a driver 25, a set screw which engages after a predetermined lost motion an abutment 26 secured on a rack meshing with a pinion 28. The feeler roller 7 (which may be a reverse roller of the uncoiler) drives its transmission 11 through a backing roller 19, pivoted arm 18, set screw 33 and positioning lever 34 set from the screw with a predetermined lost motion. A pneumatic piston-cylinder unit 6 fed from solenoid valves 31, 37 and throttling check-valves 32 urges the feeler to contact the coil, pressure being vented during lifting by the valve 37. The table is driven by an hydraulic cylinder 21, throttling check-valves 23, 24 and solenoid valve 22. In an alternative embodiment (Figs. 1, 2, not shown), the feeler is movable vertically by piston-cylinder unit (6) connected via a chain and sprocket linkage (9) to transmission (11) driving a meter and pointer mechanism (14, 15). The lifting table is similarly connected to a mechanism (12, 13). The meter pointers drive in opposing directions and indicate a coaxial alignment when they are at similar scale positions. The pointers may carry electric contact fingers, or a magnetic pick-up and lug to operate a switch to de-energize the lifting table. Alternative arrangements of the lifting table contact surfaces (16, 17) are given in Fig. 3 (not shown) and a pivot arm (6, 7, 18) B illustrated in Fig. 4 (not shown).
Patent GB-1414249-A (GB)
Title: Vacuum packaging
IPC: B65D47/14
Filed: 1973-10-25
Abstract: 1414249 Vacuum packaging G BEGHINI 25 Oct 1973 49815/73 Heading B8T A vacuum sealable lid assembly of moulded plastics material comprises a main part 1 with a peripheral skirt 2 having an inwardly projecting bead 3 securing the assembly to the container B. A central valve opening 5 receives a valve member 6 hingedly connected to the lid. When the member 6 is positioned in opening 5, a tongue 7 is received in recess 8 and a gripping tab 9 is received in recess 10. Two internal peripheral lips 11, 12 on the main part 1 engage with the container B. Opening 5 has an axially directed lip 13 at its base and a lip 14 substantially perpendicular to lip 13, and is inwardly covered by a perforated bowl 15. When a vacuum has been established in the container the valve member 6 plugs the opening 5 and sealingly engages lips 13, 14. In other embodiments the bead 3 is replaced by a screw-thread, or omitted.
Patent GB-1276508-A (GB)
Title: A rug making machine
Inventor: DEAN LEONARD GEORGE
IPC: D04G3/00
Filed: 1968-10-21
Abstract: 1276508 Rug making machine L G DEAN 14 Jan 1970 [21 Oct 1968] 49905/68 Heading D1K A hand operated rug making machine comprises a carriage 33 movable on rails 5 parallel to a beam 35 supporting a carpet canvas 36a, the carriage supporting, on a platform (7), Fig. 3 (not shown), slidable transversely of the rails a mechanism actuated by a handle 16 for looping and knotting a piece of wool around the weft of the canvas, the carriage also having a mechanism actuated by the handle 16 which moves the carriage along the rails a step upon completion of the knotting. A ready cut length of pile yarn is placed by the operator in a slot 30 in a yarn support 28 before operating the handle on each knotting operation.
Patent GB-1431549-A (GB)
Title: Anthraquinone dyestuffs manufacturing process
IPC: C09B1/515
Filed: 1972-11-01
Abstract: 1431549 Dyestuff mixtures IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Oct 1973 [1 Nov 1972] 50306/72 Addition to 1358445 Heading C4P Mixtures of disperse anthraquinone dyestuffs consisting of dihydroxydiaminoanthraquinones and N-methyl derivatives thereof in granular or powder form are prepared by reacting a dihydroxydiaminoanthraquinone, or mixture thereof, with formaldehyde in an aqueous medium containing 1-20% by weight, based on the weight of water present, of hydrochloric or sulphuric acid in presence of an anionic dispersing agent, neutralizing the mixture and then subjecting the mixture to milling and then drying. The anionic dispersing agent, e.g. a disodium salt of a condensate of formaldehyde and a naphthalene sulphonic acid is preferably used in amounts of 50-250% by weight of the anthraquinone compound. The dyes are used to dye polyesters.
Patent GB-1476595-A (GB)
Title: Plastics material closure member for a container
IPC: B65D41/18
Filed: 1975-12-09
Abstract: 1476595 Plastics plugs J RUETZ 9 Dec 1975 [16 Dec 1974] 50364/75 Heading B8T A plastics material closure comprises a handle portion 1 and a sealing portion 2 adjacent thereto, the sealing portion 2 including a sealing wall 7 and a centring member 8 adjacent thereto, the walls of the portion 1, sealing portion 2 and centring member 8 being laterally deformable. The centring member 8 includes a side wall 9 and a curved bottom wall 10 and may be of the shape shown in Fig. 1 with a rigid base 10, or may be hemi-spherical as shown at 14 in Fig. 6. The closure is preferably in the form of a plug with a flexible skirt 3 depending from the handle portion 1, the skirt 3 having an annular rib 11 to engage a bead 5 at the mouth of the container. In a further embodiment, the portion 1 sits on the mouth of the container without engaging a container bead. The skirt 3 may include a tear strip.
Patent GB-1083930-A (GB)
Title: Improvements in or relating to transmitting arrangements for use in tone frequency pushbutton selection signalling systems
IPC: H04M1/50
Filed: 1965-11-30
Abstract: 1,083,930. Number senders. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 30, 1965 [Dec. 3, 1964], No. 50769/65. Heading H4K. A push-button frequency-sender for transmitting telephone digits in a single frequency code has a tuning circuit comprising a tapped inductance 4 and capacitances 1, 2, 3 one of which is connected to one of the tappings by each push-button. Individual to each pushbutton are twin contacts 6 and 7 connecting the capacitor to a tapping and closed by contact 5; all contacts 5 are serially connected by a lead 8. If two push-buttons are accidentally depressed together a portion of the inductance between tappings becomes short-circuited by the lead 8 so preventing the oscillator from generating any frequency. Resistors 9 and 10 in the lead 8 reduce any capacitor discharge current. In the arrangement show depression of two push-buttons associated with the same capacitor naturally short circuits the inductance without the need for lead 8.
Patent GB-1121667-A (GB)
Title: Process for stabilizing fatty acid amide derivatives
IPC: A61K31/535
Filed: 1965-11-30
Abstract: Higher fatty acid amide derivatives of the general formula RCONR1R11 (wherein R represents an alkyl, alkenyl or hydroxyalkenyl group of 13-23 carbon atoms, R1 represents H or an alkyl, alkenyl, phenyl or benzyl group, and R11 represents an alkyl, alkenyl or cycloalkyl group; a substituted cycloalkyl group in which the substituent is OH or C1- 5 alkyl or alkoxy; a phenyl group; a substituted phenyl group in which the substituent is OH, C1- 5 alkyl or alkoxy, halogen or CF3; a benzyl group; a substituted benzyl group in which the substituent is nuclear OH or C1- 5 alkyl or alkoxy or a -C1- 5 alkyl; or an adamantyl group, or NR1R11 represents a heterocyclic amine residue) are stabilized by adding thereto at least one antioxidant selected from tocophenols and their fatty acid esters, o- or m-t-butyl-p-hydroxyanisole, protocatechuic acid esters, gallic acid esters, 3,5-di-t-butyl - 4 - hydroxytoluene, nordihydroguaiaretic acid, gum guaiac and thiodipropionic acid, with or without at least one synergist selected from glycine, alanine, aspartic acid, glutamic acid, cysteine, methionine, phenylalanine, tyrosine or esters thereof; glycerinic acid, ascorbic acid, erythrobic, citric acid, glycolic acid, lactic acid hydroxypropionic acid, hydroxybutyric acid, tartaric acid, malic acid or esters thereof; succinic acid, malonic acid, glutaric acid, fumaric acid, maleic acid, aconitic acid or esters thereof; pentonic acid, hexonic acid, pyruvic acid or esters thereof; folic acid or esters thereof; vitamin B2, vitamin B6, glutathione; homocysteine thiolactone; cephalin; and hippuric acid or esters thereof.
Patent GB-1065847-A (GB)
Title: A scanning electron microscope
IPC: H01J37/256
Filed: 1963-12-24
Abstract: 1,065,847. Electron microscopes. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 24, 1963 [Nov. 22, 1963], No. 50928/63. Heading H1D. In a scanning electron microscope the electrons transmitted through the specimen are separated in an electrostatic analyzer into discrete energy levels. The electrons of particular energy levels are then detected by one or a plurality of scintillator detectors which are coupled via light piping to photo-multipliers the outputs of which are fed to one or a plurality of cathode-ray display tubes whose deflection systems are synchronized with those of the microscope. The microscope comprises an electron source 42 and an accelerating electrode 78, the gun chamber 44 being outgassed away from the microscope column proper. The accelerating electrode 78 is followed by a pair of perpendicularly arranged adjustable slits 82, 84 and a magnetic focusing lens system 90 which may be externally aligned with the microscope axis and comprises two sets of main focusing quadrupole magnets and two sets of third-order aberration correcting octopole magnets. Below the lens system 90 are the deflecting plates 120, 122, a removable specimen stage 124, a variableaparture diaphragm 162 and an electrostatic spherical analyzer 152 which comprises quartz plates 154 gold-plated on either side of the passageway 158 to form the analyzer electrodes. The electron source, Fig. 4 (not shown), has a tungsten point emitter (40) and a field-forming electrode (42) which is adjustably mounted by bolts (74) engaging a ceramic block (58). The specimen stage, Fig. 8 (not shown), comprises specimen holder (126) which may be raised or lowered by arm (132) and a member (134) providing an air lock whereby the specimen holder may be removed without letting down the vacuum. On retracting the member (134) sideways until its left hand end wall abuts against stop (146), holder (126) is moved to the exterior.
Patent GB-1518859-A (GB)
Title: Needles
IPC: D05B85/14
Filed: 1976-11-12
Abstract: 1518859 Latched needles MATHBIRK Ltd 12 Nov 1976 [11 Dec 1975 20 Dec 1975] 50933/75 and 52292/75 Heading DIG A needle with a painted end 12 and a cutout 13 in the shank has pivoted a latch 16 to close the cutout which when open lies with its end substantially within the circumference of the shank. The latch has a spoon shaped end 20 to overlie a nib 14 of the cutout when closed. A heel portion 18, 18a of the latch is designed to be engaged by a yarn entering the cutout to partially close the latch which is fully closed by withdrawal through a fabric.
Patent GB-1527410-A (GB)
Title: System for air heating and ventilation in a building
IPC: F24F12/00
Filed: 1976-12-09
Abstract: 1527410 Heating and ventilation system; solar heating VALMET OY 9 Dec 1976 [19 Dec 1975] 51361/76 Headings F4U and F4V A heating and ventilation system in a small house 10 or other building comprises an integrated unit trunk 20. Intake air, indicated at A, passes through gaps 14a and 14b, intake connections 21a and 21b, intake blower 23, heat transfer means 24, air heater 26, distribution duct means 27 and enters the house from under the floor through gaps 18 as indicated at B. This air flow is indicated by solid line arrows from A to B. A cooling radiator may also be employed. Circulating air enters the unit at E under control of a damper 28. Air is removed from the house, as indicated by the broken line from D to C 1 , by means of an exhaust air blower 25, the air passing through two portions 24a, 24b of the heat transfer means, e.g. of conventional lamellar structure. By operation in the above way, it is possible to recover part of the building's heat losses and part of the solar radiation on the building's outer cladding 12. Damper 22 allows more air to be taken from one side (e.g. the sunny side) of the building. The damper 22 may turn automatically, being guided by sensors and clock means (not shown). In an alternative mode of operation, e.g. during summer time, damper 29 is positioned so as to pass intake air directly to an exhaust duct 23. As shown, window 16 has an air gap 19 connected with the air intake gap 14a.
Patent GB-1314456-A (GB)
Title: Paper-making machine
IPC: D21F1/02
Filed: 1970-10-29
Abstract: 1314456 Paper-making apparatus BELOIT CORP 29 Oct 1970 [30 April 1970] 51487/70 Heading D2A A paper-making machine comprises a headbox 10 associated with a Fourdrinier wire 29 extending round a breast roll 28 rotatably mounted on a frame, an upper slice lip 17 pivotably attached to the headbox, and a fluid pressure operated flexible chamber 19, mounted between the lip 17 and a beam 21 connected by end links to the frame, for adjusting the lip 17 relative to the breast roll. The position of the lip relative to the breast roll is indicated by cooperating index members on the frame and the lip respectively.
Patent GB-1441283-A (GB)
Title: Aerostats
IPC: B64B1/62
Filed: 1973-11-07
Abstract: 1441283 Aerostats ERNO RAUMFAHRTTECHNIK GmbH 7 Nov 1973 [11 Nov 1972] 51692/73 Heading B7W An aerostat has a gas generator attached thereto for generating buoyancy gas, the gas generator comprising hydrazine or a hydrazine mixture and means for effecting catalytic and/or thermal decomposition of the hydrazine or hydrazine mixture to produce the buoyancy gas. The product of decomposition has a molecular weight lower than 15 and the apparatus has particular application in meteorological balloons.
Patent GB-1020440-A (GB)
Title: Improvements in carburetting devices with float chamber for internal combustion engines
IPC: F02M5/08
Filed: 1964-12-21
Abstract: 1,020,440. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES S.I.B.E. Dec. 21, 1964 [Dec. 26, 1963], No. 51920/64. Heading FIB. The float chamber 8 of a carburetter is connected either through a tube 10 to the air intake or through opening 11 directly to atmosphere, depending on whether the engine speed is above or below a predetermined value, by a suction responsive device 14 the suction chamber 13 of which is connected both to a venturi throat by connection 19 and to an orifice 21 which passes from upstream to downstream of the throttle valve 2 when the latter begins to open. The connections 19, 21, may be connected separately to space 13 or, as shown, by a common passage 22 and the diaphragm 14 moves upwards at low suction to close valve 15 or seat 17 and open valve 16 to connect the float chamber to atmosphere and downwards at high suction to close valve 16 and open valve 15 to connect the float chamber through tube 10 to the air intake. At idling or when the engine is stopped the suction is insufficient to move diaphragm 14 and the fuel vapour vents to atmosphere. When valve 2 passes orifice 21 the suction actuates diaphragm 14 to open valve 15 and vent the fuel vapour to the air intake whilst at wider throttle openings the suction of the venturi throat is effective to maintain valve 15 open. The diaphragm 14 may be replaced by a piston.