baber/WOPTO huggingface dataset:
Patent GB-755276-A (GB)
Title: Improvements in and relating to n-p-n junction devices
IPC: H01L21/288
Filed: 1954-05-11
Abstract: 755,276. Semi-conductor devices; electrolytic plating and etching. GENERAL ELECTRIC CO. May 11, 1954 [May 11, 1953], No. 13734/54. Classes 37 and 41. The connection to the P zone of an NPN semi-conductor device is provided by electrolytically depositing a metal layer on the P-type zone only. This is achieved by placing the NPN unit in an electrolytic bath with the P zone maintained negative relative to the anode electrode in the bath, and the N-type zones positive. In Fig. 1, an alternating voltage is applied between the N-type zones 13 and 14, so that, due to the rectifying effect of the PN junctions, the P-type zone 16 is negative relative to the average potentials of the N-type zones. The anode 19 is adjusted to an intermediate potential. The bath may consist of indium cyanide, gold cyanide, gold fluoride or copper sulphate. When indium is the deposited metal, its acceptor properties avoid short circuiting of the PN junction. Alternatively, a temporary connection comprising for example a fused acceptor element, may be made to the P-zone, and a direct biasing voltage applied between the P and N-zones during the bath treatment. Fig. 2 shows a completed transistor with the band of deposited metal 32, and a pressure or fused contact 33. The device may be etched electrolytically in aqueous caustic soda or chemically etched after the electrolytic treatment, to remove material in the neighbourhood of the PN junctions. Specifications 728,940 and 751,472, [Group II], are referred to.
Patent GB-1204793-A (GB)
Title: Apparatus for winding thread-shaped or band-shaped products
Inventor: SLIJKOORD FRITS
IPC: B65H54/50
Filed: 1968-03-21
Abstract: 1,204,793. Yarn winding apparatus. ALGEMENE KUNSTZIJDE UNIE N.V. 21 March, 1968 [21 March, 1967], No. 13740/68. Heading D1J. The yarn package 2 is driven by a drum 1 and the yarn 16 is traversed by a hollow cylinder 5 provided with a multi-cycle zig-zag slot such that the yarn has a passage through the cylinder in a direction perpendicular to the axis of the cylinder. The system includes two guide members 6, 7 for the yarn, these members being spaced apart circumferentially of the cylinder by one traverse cycle of the slot and extending parallel to the cylinder 5. As the package 2 increases in diameter and rocks about the axis 4, means (Fig. 2 not shown) responsive to such pivoting motion causes the two guide members 6, 7 to move anti-clockwise about the axis of the cylinder 5.
Patent GB-1108061-A (GB)
Title: Improvements in or relating to electronic data processing systems
IPC: G06F13/12
Filed: 1965-04-01
Abstract: 1,108,061. Data transfer arrangements. HONEYWELL Inc. 1 April, 1965 [4 May, 1964], No. 13918/65. Heading G4A. Peripheral units PD 1  . . . PD 8  associated with a central processor 11 and a main memory 30 have data transfer under control of a control memory 32 containing a starting location register for storing the starting address of an area in the main memory 30 and a present address register which identifies the storage region in the main memory to be associated with the requesting peripheral device PD. The end of data transfer is identified by the presence of punctuation bits. The same area of the memory may be re-scanned by transfer of the starting location address to the present location register, or a fresh area may be scanned by transfer of the present location address to the starting location register. During print-out the same area is successively scanned for the various letters to set flip-flops associated with a drum line printer. The peripheral devices PD are cyclically scanned by a counter in a peripheral interface 13 which allocates a given subinterval of the timing cycle to a given peripheral device. Use of the peripheral devices may be interleaved as in Specification 1,107,661. The peripheral devices PD include printing and punching devices and have priority of access over the arithmetic unit 11 of the computer.
Patent GB-604928-A (GB)
Title: Improvements in or relating to aerial arrangements for the reception of electromagnetic waves
IPC: H01Q9/26
Filed: 1945-06-02
Abstract: 604,928. Radio receiving apparatus. COCKROFT, H. S. June 2, 1945, No. 13924. [Classes 40 (v) and 40 (vii)] A combined aerial and rectifying device for ultra-high-frequency waves comprises a rectifier 20 inserted in a loop 10 which is closed by a capacity formed by plates 13, 14 and so adjusted that the loop is resonant. The loop forms a folded dipole aerial and the plates 13, 14 are clamped together, with the interposition of a dielectric member 15, by a bolt 16 passing through an insulating bushing 17. Extensions 21, 22 of the plates 13, 14 form a screen or reflector which may take the form of a square plate of one-wavelength side spaced #/8 from the aerial. To provide for tuning adjustment, the plates 13, 14 may be slotted so as to provide resilient tongues adjustable by a screw. The rectified output may be taken from the loop 10, the plates 13, 14 or the extensions 21, 22.
Patent GB-722624-A (GB)
Title: New or improved machine for grading fruit and other articles
IPC: B07B13/075
Filed: 1953-07-15
Abstract: 722,624. Fruit-grading apparatus. GIBBONS, J. S. July 15, 1953 [June 3, 1952], No. 13990/52. Class 117. Apparatus for grading fruit or other similar articles comprises a disc 12 rotating, with a sleeve 8, on a fixed vertical spindle 7. Grading apertures are defined by V-shaped notches 11, in the edge of the disc 12, and notches 15 in radially displaceable members 14, which are carried by a sleeves 17 sliding on radial arms 13 fixed to the sleeve 8. The sleeves 17 are moved by a fixed cam 9 so that the grading apertures are of minimum size in the neighbourhood of the loading shoot 24 and open progressively as the articles are carried round thereon. When an aperture has enlarged sufficiently, the article above falls through on to a sloping table 28 divided into compartments by radial slots 29. The sleeve 8 is rotated by a belt 31 and pulley 30. The articles are guided on to the apertures by sloping members 25 adjacent notches 11 and arcuate members 26 on the movable parts 14. A paddle rotated by gearing from the sleeve 8 may be provided to feed the articles one by one to the apertures.
Patent GB-916727-A (GB)
Title: Improvements relating to self bailing devices
IPC: B63B13/00
Filed: 1961-04-18
Abstract: 916,727. Self boilers. GRINNELL, C. L. April 18, 1961, No. 14017/61. Class 113. A self-boiler for boats comprises a cylindrical housing 10 in the bottom of the boat and a body member which slides axially inside the housing between an operative or down position and an inoperative or up position. The body member consists of two plates 30 and 32 between which are secured two teardrop shaped hollow struts 26 and 28, forming a Venturi through which water passes (36), to suck bilge water down the struts and out through apertures 40. The plate 32, which is provided with holes co-inciding with the struts to allow water to pass through it, has secured to it a cylindrical sleeve 33 which engages the inner wall of the housing 10. In the inoperative position the sleeve 33 covers ports 34 in the sides of the housing, and plate 30 is brought into seating relationship with the lower end 12 of the housing 10, the engaging surfaces being coated with polyvinylchloride. The body member may be raised and lowered either by rods 42, fixed at their lower end to plate 32, and handle 52, the handle also serving as a locking device, Fig. 1 (not shown), or by a screw and nut arrangement, Fig. 9 (not shown). An alarm system is described, Fig. 9, in which an electrical circuit is made when the body member is in the operative position.
Patent GB-1208844-A (GB)
Title: Gage control system for hot rolling mills
IPC: B21B37/16
Filed: 1969-03-18
Abstract: 1,208,844. Gauge control systems. WESTINGHOUSE ELECTRIC CORP. March 18, 1969 [March 21, 1968], No. 14107/69. Heading G1A. In a rolling mill workpiece gauge control system, signals representing temperature variations between successive workpieces are sensed and stored, the values between a first and a successive workpiece being compared to produce an error signal to change the screwdown setting of the mill to maintain the desired workpiece gauge. A signal representing the gauge of the first workpiece may also be compared with the temperature signals to produce an error signal. As shown, a temperature sensitive device 18, e.g. a radiation pyrometer, senses the temperature of the head of a workpiece between the first and second stands of a tandem mill, the signal being applied to, for example, integrator 26, via relay CR1, where it is stored, and comparison amplifier 38 via relay CR4. A temperature signal corresponding to a preceding workpiece is released from integrator 24, via relay CR5, to the amplifier 38. A signal representing the gauge of the preceding workpiece is applied to the amplifier 38 from a memory device 16. The error signal, if any, from amplifier 38 is then applied to the screwdown control 14. When a successive workpiece enters the mill, its temperature signal is stored in integrator 24, via relay CR2, and is applied to amplifier 38 via relay CR4, and the temperature signal stored in integrator 26 is applied to amplifier 38 via relay CR3. The relays are actuated in the desired sequence by sensing the passage of workpieces through the first and second stands, via load cells 62, 64 e.g. strain gauges, and applying these signals to a logic circuit as shown. The integrators 24, 26 only store the signals for 3-4 minutes, and should a successive workpiece not enter the mill during this time, load cells 67, 69 on the last two stands apply signals to a logic circuit to close relay CR6 and reset the screwdown control.
Patent GB-873141-A (GB)
Title: Improvements in or relating to pressings for the production of multi-coated electrodes, and process and apparatus for the production of such pressings
IPC: B29C48/06
Filed: 1958-05-02
Abstract: 873,141. Moulding pressings for making multi-coated electrodes. HOLDING INTERCITO S.A. May 2, 1958 [May 3, 1957], No. 14114/58. Class 87(2). A process for producing multi-layer pressings for use in coating electrodes comprises forming in a press a tubular pressing compossd of at least two concentric layers 1, 3 from materials of different composition, the inner layer 3 having a bore 2 corresponding to the bore of a guide pipe 4a for an electrode 11 in an electrode coating press, Fig. 4, and the outer diameter of the pressing corresponding to the diameter of the loading bore of the coating press ; the layers of the pressing being in the same volumetric ratio as the layers of the coated electrode. Layer 3 is formed by forcing plunger 5 down between pin 4 and a cylinder (not shown), inserted in chamber 9. Said cylinder is then removed, material is fed around layer 3, and plunger 8 lowered to form outer layer 1. Several pressings are then located in the coating press and ram 10 extrudes the layers through nozzle 12 over electrode 11.
Patent GB-1378871-A (GB)
Title: Logging-while-drilling tool
IPC: E21B47/18
Filed: 1973-03-23
Abstract: 1378871 Boring earth &c MOBIL. OIL CORP 23 March 1973 [30 June 1972] 14140/73 Heading E1F [Also in Division G3] In a logging-while-drilling tool 46 having a rotary valve 60 generating pulses in the drilling fluid indicative of the magnitude of a down-hole condition measured by the tool, means 75 bias the valve to an open position when the tool is not operative. The valve comprises a rotor 61 having slots 61a and a stator 62 having slots 62a. The tool is housed in a drill collar 26, through which the fluid flows downwardly to rotate a turbine 52 driving a generator 50 supplying electricity to a motor 55 driving the rotor through a gearbox 56. A device 53 connected to a strain gauge 54 subjected to the condition controls the supply to the motor and hence the motor and rotor speeds and the frequency of the pulses are dependant on the condition. The means 75 comprises poles 78 on a stationary magnet 76 and projection 79 on a magnetic member 77 fixed to the shaft 63 of the rotor, the means tending to hold the rotor with its slots aligned with those of the stator so that the valve is in the open position.
Patent GB-369063-A (GB)
Title: Improvements in electro-acoustic devices
IPC: H04R9/00
Filed: 1931-05-13
Abstract: 369,063. Sound reproducing and transmitting devices. BLUMLEIN, A. D., 57, Earl's Court Squars, and HOLMAN, H. E., 64A, The Chase, Clapham Common, both in London. May 13, 1931, No. 14182. [Class 40 (iv).] An electroacoustic device comprises a rigid piston-like diaphragm connected at its periphery to a flexible air-sealing surround, the resonant vibrations of the surround being damped. Preferably the surround is shielded and supports the diaphragm. As applied to a microphone the diaphragm a<1> is supported by an annulus c<1>, a shield m<1> lying close to the surround to provide air damping. A groove x<1> in the shield increases damping and a similar shield may be fitted at the rear of the diaphragm. Alternatively a packing of cotton wool or other damping material may rest lightly against the surround. To allow of variations of atmospheric pressure to be equalized on both sides of the diaphragm, capillary tunnels may be provided leading to the cavity behind the diaphragm. The main resonance of the diaphragm is damped electromagnetically as in Specifications 350,954 and 350,998. In other respects the microphone is identical with that described in Specification 350,998. The invention is also applicable to loud-speakers.
Patent GB-543856-A (GB)
Title: Improvements in or relating to soldering, tinning and galvanizing fluxes
IPC: B23K35/36
Filed: 1940-09-13
Abstract: 543,856. Fluxes. DEWEY & ALMY CHEMICAL CO. Sept. 13, 1940, No. 14188. Convention date, Sept. 14, 1939. [Class 82 (ii)] A soldering, tinning or galvanizing flux comprises ammonium chloride, and a metal halide with the addition of 10-17.5 per cent. by weight of the total composition of the oxide, hydroxide or carbonate of zinc, calcium, magnesium tin antimony or lead so as to prevent caking of the mass on storage and on exposure to the atmosphere. The metal halide used is zinc chloride and this and the ammonium chloride may be used in the form of a double salt. Ammonium chloride may be replaced by the hydrohalide of an organic amine. In an example, the flux consists of 100 lbs of zinc ammonium chloride crystals and 15 lbs of zinc carbonate. To produce the flux; zinc oxide or carbonate and a commercial double salt of zinc and ammonium chloride which is rich in absorbed mother liquor are mixed, the mixture being subjected to continuous agitation for a period of time sufficient to allow completion of the reaction between the mother liquor and the oxides. Instead of agitating the mixture, the latter may be allowed to set in a solid cake which is then comminuted.
Patent GB-528696-A (GB)
Title: Improvements relating to the concentration of sulphuric acid
IPC: C01B17/88
Filed: 1939-05-12
Abstract: 528,696. Concentrating sulphuric acid. BAMAG, Ltd., and MANNING, A. H. May 12, 1939, No. 14223. [Class 32] Apparatus for concentrating sulphuric acid comprises a dephlegmator 1 and a still 2, without stirring means, connected thereto by piping 3. Dilute sulphuric acid enters at 4, and is initially concentrated in the dephlegmator. The final concentration takes place in the still 2, vapours from which enter the dephlegmator. A syphon dip pipe 7 may be provided for effecting removal of the concentrated acid. Reference has been directed by the Comptroller to Specifications 242,681 and 276,972, [both in Class 32].
Patent GB-1036283-A (GB)
Title: A substituted amide
IPC: C07C233/00
Filed: 1964-04-07
Abstract: The invention comprises 3,4-dimethoxyphenyl - a  - methylacetic acid - N - dimethylamide and the preparation thereof either by reacting dimethylamine with the appropriate acid halide or by reacting a dimethyl-carbamyl halide with the free acid.  Examples are given. The amide of the invention, which is stated to be a good respiratory analeptic, may be made up into pharmaceutical compositions with suitable carriers. Sterile injection solutions and drops for oral administration are described.
Patent GB-1134851-A (GB)
Title: Improvements relating to the production of n-hydroxy compounds
Inventor: SABEL WILLIAM
Filed: 1965-04-05
Abstract: 1,134,851. Hydroxylamines. NATIONAL RESEARCH DEVELOPMENT CORP. 25 March, 1966 [5 April, 1965], No. 14350/65. Heading C2C. Hydroxylamines of the formula R<SP>1</SP>R<SP>2</SP>N-OH, where R<SP>1</SP> and R<SP>2</SP> are alkyl or aryl groups or together with the nitrogen atom represent a 5- or 6-membered heterocyclic ring, which may contain other hetero atoms, are made by oxidizing a tertiary amine of the formula R<SP>1</SP>R<SP>2</SP>N-Y, where Y is an alkyl or cycloalkyl group of 2 or more carbon atoms, with hydrogen peroxide to form a water-containing N-oxide and heating the N-oxide with an inert solvent which forms an azeotrope with water and so distilling-off the water as an azeotrope and decomposing the N-oxide to form the hydroxylamine and the olefin corresponding to Y. It is preferred to use an inert azeotrope-forming solvent having a boiling- point sufficiently high to enable the olefin elimination reaction to proceed during the distillation of the azeotrope. Solvents boiling in the range 90-130‹ C. are preferred. Preferred reactants are those in which Y is a C 2-4  alkyl group, e.g. ethyl. Examples relate to the preparation of N-hydroxypiperidine, dibutylhydroxylamine,dimethylhydroxylamine, N - hydroxymorpholine and phenylethylhydroxylamine.
Patent GB-717076-A (GB)
Title: Improvements in or relating to handles, handle knobs, and similar fittings for application to furniture, doors, and the like
Inventor: EASTHAM ROLAND JAMES
IPC: E05B1/00
Filed: 1952-06-09
Abstract: 717,076. Handles. EASTHAM & SON, Ltd. June 9, 1953 [June 9, 1952], No. 14438/52. Class 52(1) [Also in Group XXV] A knob or handle has flat-sided barbs on its shank or shanks c<SP>1</SP> which can be forced into the woodwork to which it is to be secured. The shanks may be integral, as shown, or their upper ends may be secured or moulded into the material of the handle. ,
Patent GB-902044-A (GB)
Title: Improvements in or relating to welding presses operating by dielectric heating
Inventor: STANLEY EDMUND CHRISTOPHER
IPC: B29C65/78
Filed: 1960-04-25
Abstract: 902,044. Seaming non-metallic sheet material. RAYDYNE Ltd. April 24, 1961 [April 25, 1960], No. 14439/60. Class 42 (1). A welding press operating by radio-frequency dielectric heating is provided with at least three fixed loading stations spaced around the press head 11 and each of which is furnished with a movable loading-tray 12, 14, 16 and with means to continuously support and guide the tray as it is moved into the press. Each tray is provided with flanged wheels 18 to co-operate with rails 20 . . . 24. A transfer block is situated at each intersection of the rails and has a depth below the surface level of the rails equal to the radial width of the wheel flange so that a wheel 18 crosses a block 26 without change in level of the tray 12, 14, or 16. Each tray is movable into and out of the press independently of the other trays and a mechanical or electrical interlock arrangement may be fitted to prevent one tray entering the press while another is present. The trays may be arranged to enter the press in a controlled sequence. In a modification, not shown, five loading stations radially spaced about the head 11 may be provided. In a further modification, Fig. 3 (not shown), four loading stations are provided in an open-span press, the movable upper electrode of which is supported by a beam extending between two pillars 31, 32 and is arranged obliquely with respect to the line joining the pillars 31, 32.
Patent GB-377346-A (GB)
Title: Improvements in or relating to grenades
IPC: F42B30/04
Filed: 1931-05-15
Abstract: 377,346. Grenades. FOULON, C., 17, Rue de Luxembourg, Brussels. May 15, 1931, No. 14458. [Class 9 (i).] A firing mechanism for a grenade comprises a pivoted firing hammer 9, Figs. 1 and 2, operated by a spring 13 and held cocked by a link 8 co-operating with two abutments 10, 11 on a locking bolt 7 urged inwards against a ball 6 by a U-shaped spring 12. When a rod is inserted in a central tube 5 for throwing the grenade, or when the grenade is discharged by a bullet shot therethrough, the ball 6 and the bolt 7 are pushed outward, and the link 8 released from the abutment 10. Subsequently the bolt 7 is returned inward by the spring 12 and the link 8 then escapes from the second abutment 11, and the hammer 9 fires the percussion cap 14 of a fuze leading t the detonator 2. The firing mechanism is situated outside the grenade body 1 and is covered by a removable cap 4. The percussion cap 14 may be in the end wall of the grenade body as in Fig. 1, or on an outside support 48, Fig. 4, connected by a fuze 53 to a detonator 54 at one side of the central tube of the grenade. The fuze 53 is cast in a lead cover and graduated so that it can be cut to the length required by the range. The grenade body 1 is shaped as in Figs. 1 or 4, and is closed at the bottom by a screw plug 3.
Patent GB-788746-A (GB)
Title: Improvements in or relating to electrical plug and socket adaptors
Inventor: LOEBL RONALD FREDERICK
IPC: H01R27/00
Filed: 1955-05-20
Abstract: 788,746. Two-part couplings. LOBLITE, Ltd. March 23, 1956 [bZay 20, 1955], No. 14544/55. Class 38 (1).  An adapter comprises three pins and two current socket contacts 4 each formed of at least two, or, as shown, three, resilient strips lying in planes at angles to each other so that a plug having either flat or round pins may be inserted in the adapter, suitably shaped apertures 19, 20 being provided in the cover 11. Projections 12-14 on the inside of the cover reinforce the grip of contacts 4 on inserted plug pins and shoulders 17, 18 provide a hand shield. One socket contact 4 is connected to a pin through a fuse 7 and portions 15, 16 on the cover and base respectively coact to form a housing for a spare fuse. In another embodiment (Fig. 5, not shown) an earth socket contact is provided in addition to the current contacts, while in yet another embodiment (Fig. 6, not shown) terminals are secured to the current pins so that the adapter may be used as a plug.
Patent GB-968011-A (GB)
Title: Improvements in and relating to the production of titanium boride powder
IPC: C01B35/04
Filed: 1962-04-16
Abstract: Titanium boride powder of uniform submicron size, is made by introducing titanium halide vapour, boron halide vapour and sodium vapour into a reaction zone in a reactor without contacting the surface of the reactor, wherein simultaneous reduction of the halides by sodium takes place to give sub-micron particles of titanium boride.  The particles are rapidly removed from the reaction zone and subjected to a temperature, e.g. 800-1200 DEG C., which limits particle grain growth to a predetermined size, e.g. 0.1 micron.  In an embodiment, a horizontal cylindrical steel-coated reactor has three concentric nozzles situated at one end of the reactor and a preheated mixture of TiCl4 vapour and BCl3 vapour (molar ratio 1 : 2) is passed through the centre nozzle whilst an argon stream is passed through the middle nozzle to sheath the halide mixture and preheated sodium vapour is introduced through the outer nozzle.  The product particles together with by-products and reactants are removed to a condenser situated at the opposite end of the reactor.  The boride is recovered by leaching the condensed product with e.g. a mixture of acetone and water, or by removing NaCl by vacuum distillation. A free-flowing, pyrophoric black powder is obtained which by analysis is shown to be TiB2, containing 2.3% Fe and 0.8% Cl.  The product may be used for the dispersion hardening of aluminium.