baber/WOPTO huggingface dataset:
Patent GB-1084602-A (GB)
Title: Semi-conductor devices
Inventor: DAWSON ROBIN PAUL
IPC: H01L23/42
Filed: 1965-01-28
Abstract: 1,084,602. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Dec. 8, 1965 [Jan. 28, 1965], No. 3831/65. Heading H1K. A semi-conductor element has opposed faces which are both urged into engagement with respective electrical contacts by means including a mass of compressed resilient electrically insulating material. The element 3, preferably a silicon controlled rectifier, is inserted between a metallic header 1 and a phosphor-bronze spring contact 15 carried by a header post 5, and a mass 17 of silicon rubber is compressed between the contact 15 and a metal cap 8. A second spring contact (16, not shown) similar to the contact 15 and carried by a header post (6) may be provided, both contacts engaging gold foil electrodes on the element and being manufactured as the " teeth " of a " comb," the teeth being bent to shape and fixed to the header posts before being severed from the comb. In modified arrangements a spring is inserted between the mass 17 and the cap 8, the contacts 15, 16 are non-resilient (e.g. of soft copper), the mass 17 is wedge shaped and positioned between the cap 8 and the header posts 5, 6, the mass is stepped to engage stepped contacts, and the electrodes on the upper surface of the element are concentric or asymmetric.
Patent GB-899167-A (GB)
Title: Improvements in or relating to spigot and socket joints
Inventor: BARNES CHARLES LESLIE
IPC: E04G7/30
Filed: 1959-02-03
Abstract: 899,167. Hinges and pivots. SAFARI Ltd. Jan. 28, 1960 [Feb. 3, 1959], No. 3833/59. Class 65(2). A spigot and socket joint (Fig. 1) between two members 7, 8 which may be incorporated in folding furniture comprises a spigot 12 fixed in the first member 7 and slidably but non- rockably engageable in a socket in the second member 8 and a plug 22 slidably retained in the member 8 and pivotally connected to the spigot in such a way that, on disengaging the spigot from the socket, the two members can pivot about the connection only as far as a limiting position in which the spigot is aligned for engagement with the socket. The spigot and plug may be connected by means of a ball-and-socket joint, but are preferably joined by a link 36 of the type claimed in Specification 898,351. The plug has a slot 30 engaged by a pin 31 fixed in the member 8 to limit its movement and to prevent it from rotating axially relative to the member, and is biased axially by a spring 33. In a modification, Fig. 3, the plug 59 has embedded therein the legs of a U-shaped metal strip 62 defining a slot 63 traversed by a rivet 71 fixed in the second member, and a compression spring 68 surrounds the strip and bears against the rivet 71 and a pin 70 located in the bottom of the U. The cross-section of the socket need not be the same as that of the spigot and may, for example, be polygonal. When the spigot is disengaged and turned through 90 degrees relative to the link 36 and the plug the spring tension causes the lateral wall of the spigot to bear against the end of the second member and holds the members in this relative position.
Patent GB-1061506-A (GB)
Title: Method of forming a semiconductor device and device so made
IPC: H01L23/29
Filed: 1966-01-28
Abstract: 1,061,506. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 28, 1966 [March 31, 1965], No. 3856/66. Heading H1K. The germanium transistor shown in Fig. 1 is made by epitaxially growing N-type layer 3 on N+ substrate 2. A silicon oxide layer 5 is then formed by evaporation or by pyrolytic decomposition of ethyl silicate, and a hole formed in the layer by photoresist etching. A base region 4 is formed by diffusion and a metal layer 7 of aluminium, tantalum, nickel, or tin then evaporated over the entire upper surface. This layer, forming the base contact, is photoresist masked and etched to limit its extension over the silicon oxide and to form many holes or narrow slots through that part of the layer directly over the base region. The remaining metal is covered with an insulating layer. Aluminium may be oxide coated by anodisation or by heating in a hydrogen/steam atmosphere. Semi-conductor is epitaxially deposited to more than fill the holes in the insulated base contact and to thus form the emitter region 6 which is then provided with a contact 9. In a variant the aluminium base contact is coated with silicon oxide before etching and the two layers are selectively etched together-thus only the edges of the remaining metal pattern need be protected by anodisation before deposition of the emitter region, and the extra insulation thickness of the silicon oxide reduces baseemitter capacitance. In a further variant the metal layer is coated with silicon oxide and photoresist etched. Semi-conductor material is epitaxially deposited to fill the holes in the masked contact with an extension of the base region. Further semi-conductor is then deposited to form the emitter region. In this embodiment the base content is surrounded only by base material and silicon oxide-the base contact may therefore be alloyed to the base region if desired and the contact material is not limited to one upon which a protective film may be formed by anodisation &c. The transistor may be one of an array formed in a single body. The array may be provided with interconnection patterns to form logic circuits.
Patent GB-952800-A (GB)
Title: Insulated container and method of making same
IPC: A47J41/02
Filed: 1962-02-01
Abstract: 952,800. Producing vacua. G. L. WAX. Feb. 1, 1962 [Feb. 6, 1961; July 15, 1961 (2)], No. 3864/62. Heading F1N. [Also in Division F4] A method of partially evacuating the space 20 between the walls 12, 14 of a double walled container 10 in which slugs 24 of ceramic material are adhered to wall 12 above apertures 22, the slugs having a melting point below that of the ceramic material of which the container is made. The container, as shown in Fig. 4 is placed in an oven and the temperature raised from 700‹-1250‹C. As the temperature rises, air within space 20 expands and escapes through apertures 22 until the melting point of the slugs is reached, and at this temperature the slugs flow downwards over the apertures 22 thereby sealing them. The container 10 is then gradually cooled, and as the space 20 is at a lower pressure than atmosphere the latter presses against the slugs and forces them further into the apertures 22 thereby effecting a permanent seal. The apertures 22 are always positioned in wall 12 so that the heated air rises to pass through them. The wall 12 is provided with strength imparting vertical ridges (Fig. 1 not shown).
Patent GB-751980-A (GB)
Title: Improvements in and relating to non-linear amplifier-detector circuits
IPC: G01S7/288
Filed: 1954-02-10
Abstract: 751,980. Non-linear circuits. PHILCO CORPORATION. Feb. 10, 1954 [Feb. 11, 1953], No. 3915/54. Class 40 (6). In an amplitude detector circuit for producing an output signal which changes rapidly for relatively small changes in the amplitude of the input, a number of amplifier stages are connected in cascade and detectors are associated with two or more stages, the outputs from the detectors being combined in such a manner that one output tends to cancel another. An I.F. amplifier, Fig. 2, comprises five stages 40, 48, 54, 62 and 56 with grid and cathode resistorcapacitor circuits 46, 52, 58, 64 and 60 to give alternate grid and cathode detection when driven beyond the operating range of the associated valve. The outputs from these circuits are fed over decoupling resistors 70 to a delay line correctly terminated by resistors 72, 72, 74 and of a length equal to the transit time of the signals through the amplifier. As the input is increased from zero, Fig. 3, tube 56 saturates and operates as a grid detector to give the curve 28<SP>1</SP> which levels off when tube 62 saturates. Tube 62 then operates as a cathode detector to give curve 26<SP>11</SP> which, when added to curve 28<SP>1</SP> give the effective curve 26<SP>1</SP>. This is terminated by tube 54 saturating, the process continuing until tube 40 is saturated and operates as a grid detector. A pulse 80 applied to the I.F. amplifier results in a video pulse 90 whereas a larger pulse 81 may produce a smaller pulse 91. In a radar receiver where the modulation is important, the I.F. amplifier is able to handle a large range of input and give a small range of output of modulation voltage. If the graph has a curved portion 34 sharp cut-off limiters may be interposed between the amplifier stages. U.S.A. Specification 2,662,978 is referred to.
Patent GB-1249604-A (GB)
Title: Moulding press, particularly for refractory ceramic bodies
IPC: B28B3/02
Filed: 1970-01-27
Abstract: 1,249,604. Moulding press. LAEIS-WERKE A.G. 27 Jan., 1970 [27 March, 1969], No. 3938/70. Heading B5A. A press for powdered refractory material has vertically reciprocable upper and lower dies, the upper die having means to support the moulded article when the die is raised and moved to a position laterally of the press so that the article may be released to fall on to a delivery conveyer. In Fig. 2 the upper die comprises a plate 10 bolted to a pressure plate 11 and provided with tapered openings 13 leading into ducts 15, 16 in plate 11. The ducts and openings may be connected via a valve to a suction or pressure line so that the moulded article is held by suction when the die is conveyed to a position above a belt conveyer whereupon the article is deposited by positive pressure.
Patent GB-1351056-A (GB)
Title: Devices for producing a homogenous sheet of liquid
IPC: B05B14/468
Filed: 1972-01-27
Abstract: 1351056 Web coating apparatus TUNZINIAMELIORAIR THERMIQUE - AERAULIQUE - MECANIQUE 27 Jan 1972 [3 Feb 1971 26 April 1971 26 May 1971] 3959/72 Heading DIL [Also in Divisions Bl and B2] Apparatus for coating a web comprises a wall 501 down which a coating material pours on to the web. The lower edge of the wall 501 terminates above a substrate 502. The apparatus also includes a complementary wall 504 having a lower portion 504a extending transversely beyond the extension of the side 501a of the wall 501 to define a slot 505 and an upper portion 504b extending on the other side 501b of wall 501 to define a reserve tank 506 communicating with a suction means 507 which acts to control the flow of coating material to the substrate.
Patent GB-348114-A (GB)
Title: Improvements in couplings for flexible metallic and other tubes
IPC: F16L19/03
Filed: 1930-02-06
Abstract: 348,114. Pipe joints. BERRYMAN, W., 94, South Street, Ponders End, Middlesex. Feb. 6, 1930, No. 4038. [Class 99 (i).] A swivelling pipe joint comprises a socket a and spigot b having conical or other bearing surfaces a<2> which are kept in engagement by a gland d which screws into the socket and compresses packing c against a collar b<1> on the spigot. In a modification a ring d‹, Fig. 2, screwed into the socket, bears against the collar b<1>, and is locked by a ring f against which the packing is compressed. The gland is locked in each case by a nut e. Specification 13770/05, [Class 99, Pipes &c.], is referred to.
Patent GB-354694-A (GB)
Title: Improvements in synchronizing apparatus for talking motion picture machines
IPC: G03B31/00
Filed: 1930-02-06
Abstract: 354,694. Gramophones associated with kinematographs, NUBLAT, R., Montreal, Canada. Feb. 6, 1930, No. 4066. Convention date, Sept. 26, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] Relates to talking motion picture apparatus, in which a kinematograph projector and a gramophone are geared together. The shaft 10 of the projector A, which is driven by a motor 11, has at its outer end a threaded orifice in which is screwed the threaded end of a shaft 34. This is made in sections united by a universal joint 37 and a flexible coupling 38 such as a rubber sleeve. The shaft 34 carries a pinion 39, driving the gramophone turntable 18 by engaging with an annular gear 20 on the under face thereof. The gramophone pick-up 28 is mounted on an arm 27, which is supported by a pivoted arm 30. This arm is rotated by a series of worms and worm-wheels 21, 23, 24, 26 connecting the turntable spindle 19 and a spindle 25 on which the arm 30 is mounted, so that the pick-up is positively traversed across the record as the turntable rotates. A releasable connection between the arm 30 and the spindle 25 is made by a sleeve 31 attached to the arm, having a castellated end 32, Fig. 4, which engages a correspondingly formed part 33 on the spindle. With this arrangement, the arm 30 may be freely turned on the spindle 25 when required, if it is raised to disengage the parts 32, 33.
Patent GB-1100122-A (GB)
Title: Metal compositions
Inventor: ALEXANDER GUY B
IPC: C22C32/00
Filed: 1965-01-29
Abstract: An alloy comprises a continuous phase consisting of at least one metal having a melting point above 1100 DEG C. and having an oxide with a free energy of formation, D F, at 27 DEG C. of 45-103 Cals per gram atom of oxygen in the oxide, having dispersed therein from 0.5-30% by volume of sub-micron oxide particles having D F at 1000 DEG C. greater than 99 and 0.05-80% by volume of sub-micron particles of a metal carbide, boride, nitride, silicide, aluminide or titanide or boron carbide or nitride which have been precipitated by quench-ageing, there being less than 0.5% excess oxygen over that present in the refractory oxide particles.  The matrix may be Fe, Co, Ni, Mo, W, Cr, Mn, V, Nb, Ta, Re, Si or Ti and simple or complex oxides (e.g. spinels or aluminates) may be used.  The alloys may be made by preparing a powder dispersion of the oxide particles in the matrix metal, mixing it with the components of the precipitate phase to be formed, compacting sintering and working the mixture to obtain a consolidated material, heating the mixture to a temperature higher than the solvus temperature Ts to cause complete solution of the components of the precipitate phase, cooling to at least 200 DEG C. below Ts in less than 100 seconds and ageing the product at a temperature up to Ts. The oxides may alternatively be dispersed in a melt of the matrix metal and in a further modification the solution treatment may be carried out immediately prior to, or during, the consolidation step.
Patent GB-1098124-A (GB)
Title: Throw-away tip tool holder
Inventor: HUGO LESLIE JOHN
IPC: B23B27/16
Filed: 1966-01-29
Abstract: 1,098,124. Cutting tools. ALFRED HERBERT Ltd. Sept. 19, 1966 [Jan. 29, 1966], No. 4084/66. Heading B3B. A disposible tip tool holder comprises a shank 10 with a tip receiving recess 11, 12 at one end, a tip clamp 17 with screw-tightening means 33 and a chip breaker 19 located in a parallel sided guide channel 18 in the clamp 17. A cam member 23 is provided within the clamp and is supported in the clamp and recess bottom by stub shafts 26, and 27 respectively. The cam member is connected to the chip breaker by a C-spring 22 which engages notches 20 in the end of the chip breaker. The rotation of the cam member permits the advance and retraction of the chip breaker in the guide channel in relation to the cutting edge of the tip 16. When the required adjustment is made the tip and chip breaker are secured by the clamp by tightening the screw 33. The thickness proportions of the tip, recess, and chip breaker are such as to ensure positive abutting engagement when the clamp is tightened.
Patent GB-883833-A (GB)
Title: Improvements in or relating to the production of cast iron
Inventor: HARDING EDWARD WILLIAM
IPC: C21C1/08
Filed: 1959-02-05
Abstract: A process for producing spheroidal graphite cast iron comprises treating the molten metal with tellurium and with a nodularising graphitiser in such quantity that the tellurium increases the wedge value to 1/5 to 9/10 of the mean casting section and the nodularising graphitiser reduces this wedge value to 1/10 to 1/2 of the mean casting section, the combined carbon then being in an unstable condition easily broken down by a short anncell to pearlite and/or ferrite.  The tellurium may be added as an alloy with iron or copper either by surface or subsurface treatment and the graphitiser may be magnesium-silicon or calcium-silicon or a mixture thereof. Specifications 510,757, 553,573, 590,344 and 659,928 are referred to.
Patent GB-110481-A (GB)
Title: Improvements in or relating to Crank-pin and like Bearings.
Inventor: DOUGLAS WILLIAM
IPC: F16C9/04
Filed: 1917-03-21
Abstract: 110,481. Douglas, W. March 21, 1917. Roller bearings. -In a roller bearing for crank. pins of the kind in which an un divided connect ing-rod end is threaded along the shaft over the crank webs the inner race E for the roller. D is recessed in the crank-pin A, which is wide enough to allow the outer race C to be placed laterally over the rollers. Retaining-rings F, which also are passed over the crank webs, are riveted to the sides of the outer race C when in position
Patent GB-898071-A (GB)
Title: Improvements relating to liquefied gas storage installations
Inventor: CLARK LESLIE JOSEPH
IPC: F17C13/12
Filed: 1960-01-27
Abstract: 898,071. Storing liquefied gases. NORTH THAMES GAS BOARD. Jan. 20, 1961 [Feb. 5, 1960], No. 4204/60. Class 8(2). A liquefied gas storage tank is cooled to a temperature substantially below atmospheric by the injection thereinto of a spray of liquid which is normally gaseous at atmospheric pressure and at the temperature to which the tank is cooled, allowing the liquid to vaporize and the vapour or gas thus produced to circulate in the tank and removing excess vapour or gas from the tank; the spray of liquid is directed downwards from the centre of the top of the tank so that no liquid comes into contact with the walls of the tank, As described, a tank 1 for storing liquid methane comprises an inner metal shell 2 disposed within and spaced from an outer shell 3, the space between the shells being filled with an insulating powder. Projecting through the top of the tank is a main liquid inlet 10, a spray feed tube 17 and a gas outlet 11, the latter having a relief outlet 11a and the tube 17 feeding a hollow ring 18 provided with vortex pressure spray nozzles 19. Thermocouples 12 placed at various points in the tank are connected to a panel 14. The shells 2 and 3 stand on a base 4 spaced from a lower base 5 by insulating members 6. The liquid being sprayed into the tank may be some of the methane to be stored therein or it may be a different, preferably inert, liquid gas. Specifications 851,568 and 854,480 are referred to.
Patent GB-1598992-A (GB)
Title: Automated immunoassay
IPC: G01N33/536
Filed: 1978-02-02
Abstract: The device contains a means (19) for the time-controlled incubation of a plurality of sample solutions. Each sample solution is a mixture of a sample having the antigen or antibody content which is to be tested, and a solution having a known concentration of labelled antigens or labelled antibodies. The device additionally contains a detector (3) which senses the presence of the sample in a sensing station and correspondingly triggers a time-control unit (48), and contains a means (51) for separating the measured solution into a portion where complexes have formed during the incubation and into a portion where no complexes have formed, as well as a measurement detector (35) which records the content of labelled material. The device additionally contains means for supplying (17, 53) the solutions or portions thereof, as well as isolating means (31) for the purpose of appropriate completion of the method. <IMAGE>
Patent GB-1415403-A (GB)
Title: Apparatus for bending sheets of glass
IPC: C03B23/025
Filed: 1973-01-29
Abstract: 1415403 Bending glass sheets LAMINO OY 29 Jan 1973 [27 Jan 1972] 4381/73 Heading C1M Apparatus for bending glass sheets comprises a heating chamber 5 with heating elements 6 in which glass sheets 2 are supported for movement therethrough by conveyer rollers 3 on axis 7 at a small angle to the horizontal so that sheets 2 lean to one side on to supporting inclined rollers (4), which may comprise freely rotating disces 9, arranged to a curvature corresponding to that required for the glass sheet 2. As shown in Fig. 2, each disc 9, which is of asbestos cement or a ceramic material, is separately supported between steel side plates (10) and bearing (11) rotating on journal (12) of a fork (13) at the end of a supporting hollow arm 14 connected to cooling air conduits 16, each arm 14 being adjustable and locked in position by devices 22. The devices 22 may be set by passing a curved metal plate through the apparatus. In a modification, more than one disc 9 may be disposed on each arm 14. As shown in Fig. 4, discs 9 are supported on a curved shaft 17 supported by spherical bearings 24, 25 in the chamber 5 and at the required curvature by supporting arms 20 and joint bearings 21 and locked by devices 22. The shaft 17 may be flexible or may be rigid, the curvature of which is varied by turning the shaft. The curved sheets 2 then pass between air jet cooling devices, and may then pass to a water cooling device and other treatment positions.
Patent GB-705007-A (GB)
Title: Metal cones for cathode ray tubes
IPC: H01J29/86
Filed: 1952-02-19
Abstract: 705,007. Making pipes and tubes ; stamping. RADIO CORPORATION OF AMERICA Feb. 19, 1952 [Feb. 24, 1951], No. 4406/32. Classes 83 (2) and 83 (4). [Also in Group XL (a)] A metal cone for a cathode-ray tube has a circular flanged smaller end for sealing to the tube neck and a rectangular rimmed larger end for sealing to a face plate, the cross-section of the cone tapering gradually and continuously from one end to the other. The flat blank is keyed on to the small end of a rotatable frustum or mandrel and is spun with the aid of external rollers into an oblate circular blank 17, Fig. 4, which has the grain extending in the direction of the minor axis, and is provided with a hole 18 for fitting on to an arbor projecting from the frustum, with holes 19 which register with pins thereon, and with one or more holes 22 to indicate the direction of the grain. The spun frustum 25, Fig. 5, is annealed, coated with a soap lubricant, and stamped into the required shape between a punch 26 and a die 21 mounted on the lower end of a hydraulic or mechanically operated piston 24. A 500 ton stamping mill is required for a blank having a wall thickness of 0.10 inch and consisting of an iron alloy containing 17 per cent of chromium. The punch may carry a cylindrical cutter 27 which in conjunction with the die socket 28 may be used for forming the opening 23, Fig. 4. Alternatively, the opening 23 may be formed by a subsequent operation. Irregularities produced in the surface of the larger flange may be eliminated by the use of a further punch and die, parts of which are cut away to clear the smaller flange and the intermediate portion. This operation may follow a further annealing. A fringe which may be produced on the flange may be eliminated by grinding or by a band saw to which the fringe may be fed progressively by rotating the frustum ; the burr produced by the saw is removed by an abrasive. In another form, the blank 20, Fig. 6, has the apertured lower end closed by a rubber gasket 33, secured by a washer 34, nut 35 and bolt 32, the head of which guides the frustum into the die which is closed by a cover 36 through a rubber sealing ring 37. The frustum is expanded by oil from the pump 39. The die may be modified so that the larger flange may be flat or provided on all, or on only two opposite edges, with upturned flanges.
Patent GB-191305-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/02
Filed: 1922-02-16
Abstract: Monoazo dyes yielding fast violet-blue to brown shades when chrome printed on cotton are obtained by coupling diazotized 1-amino-2-oxynaphthalene-4-sulphonic acid, or a substitution product thereof, with b -resorcyclic acid; in examples the diazo compound itself and the nitrated diazo compound are used.