baber/WOPTO huggingface dataset:
Patent GB-862900-A (GB)
Title: Continuous plasma generator
IPC: H01J27/04
Filed: 1959-04-14
Abstract: 862,900. Ion sources; nuclear fusion reactors. UNITED STATES ATOMIC ENERGY COMMISSION. April 14, 1959 [May 6, 1958], No. 12588/59. Classes 39(1) and 39(4). A plasma generator for producing a continuous beam of plasma, e.g. for use in thermonuclear reactors or as a source of electrons and ions, consists of an anode cylinder 11 within which the plasma is formed, two electrodes 22 and 27 held at a negative potential, electrode 27 constituting the outlet for the plasma beam, and solenoids 41 to 44 for setting up an axial magnetic field which rises in intensity to a peak within the anode cylinder. A further solenoid 46 surrounds the outlet electrode 27. The action of the magnetic field is to confine the plasma and also to expel plasma from the anode cylinder through the outlet electrode 27 by a type of magnetic mirror effect. The negative electrode 22 includes a disc 23 and gas is supplied through a pipe 24 to the rear of the disc whence the gas migrates through one or more minute apertures in the centre of the disc into the anode cylinder. The flange connections between the electrodes are slanted to prevent the changed particles from striking the insulators 17, 33. O-rings are associated with the insulators to preserve the vacuum.
Patent GB-669003-A (GB)
Title: Ball and roller bearings
IPC: C10K1/12
Filed: 1950-05-19
Abstract: 669,003. Securing bearing races to shafts. ABLETT, C. A. May 19, 1950, No. 12602/50. Drawings to Specification. Class 80 (ii). [Also in Group XXXIV] In a ball or roller bearing, the inner race is divided circumferentially into sections which are clamped onto a shaft by screw-tightened means. The screws may either engage between lugs integral with the race sections, or alternatively between rings, themselves constructed in halves. These rings may either surround the race, through which they exert their clamping force, or alternatively they may clamp directly onto the shaft while at the same time fitting into grooves in the race.
Patent GB-215575-A (GB)
Title: Improvements in and relating to display devices
IPC: G09F7/04
Filed: 1923-05-11
Abstract: 215,575. Gee, J. E., and Gee, F. S. May 11, 1923. Letters and the like; looseletter signs. - Characters &c. consisting of permanent magnets, instead of having the poles formed of bentover marginal portions as described in Specification 193,987, are made from plane portions 1 of material suitable for permanent magnets, the feet 2 of softer material, being attached by riveting, screwing, welding, forging, or soldering.
Patent GB-235698-A (GB)
Title: Improvements in or relating to the production of nitrated organic compounds
IPC: C07B43/02
Filed: 1924-05-23
Abstract: Cellulose is nitrated by means of metallic nitrates in conjunction with glacial acetic acid, acetic anhydride, acetyl halogenide or mixtures thereof.  In an example copper nitrate and acetic anhydride are employed.ALSO:Organic compounds are nitrated by means of metallic nitrates in conjunction with glacial acetic acid, acetic anhydride, acetyl halogenide or mixtures thereof.  In examples o-nitroacetanilide is obtained by treating aniline with copper nitrate and acetic anhydride, pouring into water, triturating the precipitated mass with water and recrystallizing from dilute alcohol; nitroacetic ester by treating acetoacetic ester with the same nitration mixture, pouring into water and separating the oil, adding potash thereto and then dilute sulphuric acid, dissolving in ether, drying and finally adding alcoholic potash to obtain the potassium salt; malonic ester, iso-succinic ester and the like, or polyhydric alcohols such as cellulose, may be nitrated similarly, glycerine being converted partly into nitrate and partly into acetate; a mixture of dinitrophenols is obtained by treating phenol with glacial acetic acid and ferric nitrate and pouring into water; 4 : 6-dichlor-2-nitrophenol by treating phenol with copper nitrate and acetyl chloride, or a mixture of glacial acetic acid with acetyl chloride or phosphorus trichloride, pouring into water, washing and steam distilling; picric acid by treating phenol with copper nitrate and acetic anhydride at above 70 DEG  C.; and trinitrophenylmethylnitramine and hexanitrodiphenylamine by the action of copper nitrate and acetic anhydride on dimethylaniline and diphenylamine respectively, the product being poured into water, extracted with benzene, the latter evaporated and the explosive finally recrystallized from benzene.  In addition the nitration of toluene, benzoic acid and naphthalene and the use of the nitrates of cerium, manganese, zinc, nickel, and cobalt are referred to and it is stated that the action of the alkali and alkaline earth nitrates is relatively feeble.  In general the nitrations are carried out at below 60 DEG  C.
Patent GB-679062-A (GB)
Title: Garden frames
Inventor: BRIDGE ARCHIBALD CLAUDE
IPC: A01G9/24
Filed: 1950-05-22
Abstract: 679,062. Garden frames. CRITTALL MANUFACTURING CO., Ltd. April 13, 1951 [May 22, 1950], No. 12789/50. Class 20(i) The hinged top light 2 of a garden frame 1 is supported by two stays 4, 5, e.g. of tubular metal, connected at spaced points 10 to the light 2 and received in a fixing device 12, 13, on the frame 1 at a common point of intersection. The stays 4, 5 are pivotally connected to lugs 10 on the front bar of the light 2 and their free lower ends each pass through a groove on one or other of two discs 12, 13 freely mounted in a bracket 14 which is carried on a bar 18 rotatably mounted in brackets 19 on the frame 1. A locking device for securing the light 2 in any position may be provided.
Patent GB-1400687-A (GB)
Title: Peroxydicarbonate polymerization initiators
IPC: C08F4/34
Filed: 1973-03-16
Abstract: 1400687 Polymerization initiator NIHON YUSHI KK 16 March 1973 [22 Aug 1972] 12789/73 Heading C3P [Also in Division C2] The polymerization of vinyl chloride is carried out in aqueous suspension in the presence of a polymerization initiator comprising a compound of the formula R being a C 1-4  alkyl group, and/or diethoxyethylperoxy dicarbonate. The vinyl chloride may be copolymerized with one or more other monomers, e.g. vinyl esters, vinyl ethers, acrylic acid, acrylates, methacrylic acid, methacrylates, aromatic vinyl compounds, vinyl bromide, vinyl fluoride, vinylidene halides, acrylonitrile, acrylic amides, maleic acid, fumaric acid, maleic acid anhydride or fumaric acid anhydride.
Patent GB-1478935-A (GB)
Title: Transistor circuits
IPC: H01L21/8228
Filed: 1975-03-27
Abstract: 1478935 Switching circuits INTERNATIONAL BUSINESS MACHINES CORP 27 March 1975 [31 May 1974] 12820/75 Heading H3T A two input bipolar transistor circuit for performing logical operations such as NAND or NOR between signals applied to the inputs has the inputs A, B respectively coupled to the bases of two transistors T3, T4 of one polarity connected in series and also to the bases of two transistors T1, T2 of the other, complementary polarity connected in parallel and providing a load for the series transistors, each of the transistors being constructed to have its normal and inverse current gain factors substantially equal, and preferably greater than unity. The circuit may be formed as an integrated circuit using lateral transistor construction. The supply voltage, V O -V R , is preferably substantially equal to the base-emitter voltage of one of the transistors when conductive, e.g. 0À7 volts. This supply voltage may be derived from a bipolar voltage stabilizing circuit (Fig. 4 not shown) in which complementary transistors (TX1, TX2) substantially the same as those in the logic circuit are used. It is stated that the bipolar version of the CMOS type of circuit exhibits lower dissipation and/or faster response than CMOS. The circuit can be made in the opposite polarity form (Fig. 5 not shown) in which the series pair are PNP and the parallel pair are NPN.
Patent GB-624305-A (GB)
Title: An improved cover for protecting furniture for storage or transport
IPC: B65D85/68
Filed: 1945-05-23
Abstract: 624,305. Protective covers for furniture. PEARCE, T. E. May 23, 1945, No. 12825. [Class 94(i)] A cover for protecting furniture for storage or transport is shaped to the overall configuration of the article and has an inner lining secured over the whole or part of its inner surface. The outer canvas cover 2 is in sections and has an inner lining 1 of felt or the like, corresponding sections of which are slightly smaller and are stitched to the outer section about half an inch in from the edge, raw edges of the canvas being turned in. The several sections are then secured together by oversewing. In large sections the two layers may be stitched through or quilted to prevent sagging. Tying tapes 5 and 6 are provided for securing the cover to an article. A tail piece 4 is stitched to the top of the cover to protect the back. A loop to hold an identification label may be provided attached to the front portion of the cover.
Patent GB-1413776-A (GB)
Title: Electrical energy transmission system
IPC: H01B7/29
Filed: 1974-03-22
Abstract: 1413776 Underground cable systems; cooling cables BBC BROWN BOVERI & CO Ltd 22 March 1974 [26 March 1973] 12837/74 Headings H2H and H2C An underground cable system comprising a plurality of gas-insulated cables each having a tubular metallic easing 3, 4 containing one or more conductors 3a, 4a is provided with heatconducting connectors 5 distributed along the length of the system so as to provide thermal contact between the casings 3, 4. Thus should one of the conductor sets 3a or 4a become faulty, the associated casing may be used to assist the cooling of the intact conductor set. The connector 5 may interconnect the casings 3, 4 radially or tangentially. The gas filling for the cables may be sulphur hexafluoride and the two cables may each comprise three conductors spaced apart in the casing or may comprise three cables each with its own casing.
Patent GB-998069-A (GB)
Title: Improvements in or relating to navigational apparatus
Inventor: VAGO ROBERT EDWARD
IPC: G01S1/02
Filed: 1963-04-01
Abstract: 998,069. Aircraft instruments. COMPUTING DEVICES OF CANADA Ltd. April 1, 1963, No. 12864/63. Addition to 997,696. Heading B7W. In an improvement in the navigational apparatus claimed in the parent Specification, provision is made in the frame advance mechanism to ensure that there will be no random operation of the mechanism should the aircraft on which it is mounted change direction as soon as a frame advance is initiated. In the Figure, the threaded shaft 90, travelling nut 88, conductors 97 and 98, relay 93 and frame advancer 96 are those shown in Figs. 5 and 7 of the parent Specification. Nut 88 carries switch operating arms 185 and 186 to engage switches 86, 87 and 187, 188. With the film transport positioned with the display at a NS boundary the nut 88 is in a position where arm 185 closes switch 86 to complete a circuit between a voltage source 190 through conductor 97, switch 191-S1 and thence through two branch portions, one through rectifier 192 and relay 193-R to ground and the other through rectifier 194 where the circuit again divides through relay 93 to ground and through relay 195-R to frame advancer 96 and then to ground when a switch 193-S2 is closed. A rectifier 197 blocks the circuit for flow away from rectifier 194. Relay 193-R moves switch 193-S1 to contact 196 to isolate relay 191-R and also moves switch 193-S2 to provide a circuit from frame advancer 96 to ground. Relay 195-R functions as a locking relay and when energized closes switches 195-S1 and S2 to maintain a closed circuit between terminal 190 and conductor 97 after nut 88 moves away from switch 86 during a frame advance. At the moment the frame advance is completed nut 88 is positioned with arm 185 just closing switch 87 to complete a circuit from terminal 198, through switch 87 (and also through switch 195-S2). conductor 98, switch 193-S1, contact 196, switch 188 and relay 193-R to ground. When the frame advancer 96 finishes the frame advance it momentarily provides an open circuit and thereby stops the current flow through relay 195-R permitting switches 195-S1 and S2 to open, thereby de-energizing relay 93. Since there is still a circuit from terminal 198 through switch 87 to energize relay 193-R, switches 193-S1 and S2 do not move. Before frame advancer 96 is permitted to operate again switch 193-S2 (or switch 191-S2) in the case where relay 191-R is operated by the closing of contacts 87 must open and then be re-closed.
Patent GB-899854-A (GB)
Title: Inspection and sorting of sheet materials by photoelectric means
IPC: G01N21/89
Filed: 1959-04-15
Abstract: 899,854. Valve amplifying circuits. NASH, P. April 15, 1959 [April 22, 1958], No. 12871/59. Addition to 885,278. Class 40(6). [Also in Group XL(b)] In photo-electric apparatus for detecting flaws in paper (see Group XL(b)), the outputs of photo-cells 98. .101 are applied via cathode followers 108, 109 to cascaded stages of directlyconnected push-pull long-tailed amplifier pairs and a feedback network includes capacitor 169 to reduce the D.C. gain. Gain-adjusting resistor 132 is included for equalization with further like amplifiers.
Patent GB-562547-A (GB)
Title: Improvements in or relating to domestic washing machines
IPC: D06F17/02
Filed: 1942-09-14
Abstract: 562,547. Washing machines. HOLMES, W., and FLETCHER, T. Sept. 14, 1942, No. 12899. [Class 138 (ii)] A machine for washing clothes and the like by circulating water has a reticulated baffle plate 13 near the bottom of the tub and a pump, preferably centrifugal, arranged to draw water from beyond the periphery of the baffle and through the holes in it and discharge it radially from the centre through orifices 11 across the face of the baflle, the pump being central near the base of the casing and having a substantially flat top 10. Thus an electric motor 3 drives through a clutch 5, controlled by a lever 6, a vertical shaft 9 and an impeller 4 comprising spiral arms 7 to force water through radial holes 11 in the periphery of the casing 10, a ridge 12 on which is supported the baffle plate 13. For emptying the tube a cover plate 16, Fig. 5, is applied over the fiat top casing 10 and around the orifices 11, connected to a hose 15.
Patent GB-102364-A (GB)
Title: Improvements in Central Tubular Parts for Hand Grenades.
Inventor: SALSBURY GERALD CARLETON
IPC: F42B27/00
Filed: 1916-09-12
Abstract: 102,364. Salsbury, G. C. Sept. 12, 1916. Projectiles. - Relates to the centre-pieces of Mills's handgrenades described in Specification 2111/15, these centre-pieces comprising two tubes and a screwed base which have previously been made all in one piece or in three pieces soldered together. According to this invention, the central tube a is not merely soldered to the screwed base b, but is formed with slots a<1> which fit lugs b<1> on the screwed base to take up torsional and longitudinal stresses.
Patent GB-252384-A (GB)
Title: Process for dyeing cotton with vat-and azo-dyestuffs
IPC: D06P3/68
Filed: 1926-05-20
Abstract: 252,384. I. G. Farbenindustrie Akt.- Ges., (Assignees of Chemische Fabrik Griesheim-Elektron). May 20, 1925, [Convention date]. 2 :3 - Oxynaphthoylamino - hydroquinonedimethylether is made from 2 : 3-oxynaphthoic acid and aminohydroquinonedimethylether in the presence of an organic diluent, by the process described in Specification 13237/13.
Patent GB-234484-A (GB)
Title: Improvements in and relating to distant water level indicators for steam generators
IPC: F22B37/78
Filed: 1925-05-18
Abstract: 234,484. Soc. des Etablissements Hopkinson, and Noble, G. May 20, 1924, [Convention date]. Indicators actuated by pressure of head of liquid.-Apparatus for indicating the water level in a steam generator comprises one or more diaphragms, each of which is subjected on its opposite sides to the pressure of a column of water of constant height and to that of the varying height in the generator. The generator is connected by a tube T, Fig. 1, to a condenser A having an overflow T' to the generator. The condenser maintains a constant head of water in a tube T<3> which communicates with a chamber D closed at its ends by diaphragms E, F. The chamber D is in alignment with liquid chambers G, H which are connected by an air vessel J and tubes T<4>, K, the level of the water in the glass tube K being indicative of the water level in the generator. In a modification, the tube T<3>, Fig. 2, is connected to a chamber G' which is separated by a diaphragm E' from a chamber D connected with the generator of a tube T<5>. The movement of the diaphragm is communicated through links and toothed-gearing to a drum 0, upon which is wound a flexible cord attached to an indicating-float in the glass tube K.
Patent GB-326389-A (GB)
Title: Improvements in carriers for electric accumulators and the like
IPC: H01M2/10
Filed: 1929-04-26
Abstract: 326,389. Welch, A. P. April 26, 1929. Parcel and like carriers. -A carrier for electric accumulators and the like which may be packed in position thereon in a carton, consists of a U-shaped frame 1, of sheet metal, wire, &c., fitting the lower part of the accumulator, to the upper ends of which frame are hingedly connected wire frames 4, 5, the longer frame 5 passing through the other and having the upper end 8 bent to serve as a carrying handle. When not in use for carrying, the frames fold down to rest on the top of the accumulator, &c.
Patent GB-441045-A (GB)
Title: Improvements relating to engine starters
IPC: F02N15/06
Filed: 1934-09-19
Abstract: 441,045. Helical springs. CLAYTON, C. E. EVERY-, 51, Chancery Lane, London.- (Charter Drive Inc. ; 111, West Monroe Street, Chicago, U.S.A.) Sept. 19, 1934, No. 13038/35. Divided out of 426,862. Drawings to Specification. [Class 108 (iii)] In an engine starter in which a starter pinion is moved axially into and out of engagement with an engine gear by means of a coiled spring through which the pinion is driven, the spring is provided near one end with an abutment through which the drive is transmitted to the pinion and at the other end with two branches which can be operatively connected to the pinion and are formed as open-sided hooks or loops. The means for carrying the invention into effect are the same as those described in Specification 426,862 but the claims are different.
Patent GB-1128732-A (GB)
Title: Electro-mechanical apparatus for conversion of electrical pulses into step-wise rotary motion
Inventor: PHILLIPS KENNETH RICHMOND
IPC: F16H27/02
Filed: 1965-03-26
Abstract: 1,128,732. Cam mechanism; toothed gearing. SMITHS INDUSTRIES Ltd. 21 June, 1966 [26 March, 1965], No. 13049/65. Headings F2K and F2Q. In apparatus for conversion of electrical pulses into a stepwise rotary motion including an electromagnetic actuator and a mechanical converter, the converter comprises a member 13, Fig. 2, coupled to the actuator for axial displacement and having teeth 21, located between fixed teeth 22, with inclined ends engaging complementary ends of teeth 23 on an annular driven member 15. In response to a pulse through the actuator, the teeth 21 move the member 15 axially, against the bias of a spring 24, until the teeth 23 can clear the ends of the fixed teeth 22, the action of spring 24 then causing the teeth 23 to slide along the ends of the teeth 22, thereby effecting rotation of member 15 through one step. Teeth 23 also have inclined surfaces 25, Fig. 4, which engage complementary surfaces 26 on teeth 21 to return the latter to their original positions. The drive is transmitted from member 15 to a shaft 19 through gearing 16, 17 and a spring clutch 18. An eccentric hub 29 is splined to shaft 19 and carries a toothed wheel 28 whose teeth are adapted to engage pins 30 on an output gear 20. The number of spaces between pins 30 is one ess than the number of teeth on the wheel 28. Rotation of wheel 28 is prevented by the engagement of a peg thereon with a slot in a plate 31 which is slidable at right-angles thereto.
Patent GB-1471032-A (GB)
Title: Method of operating a pyro-electric detector
IPC: H01L37/02
Filed: 1974-03-25
Abstract: 1471032 Operating radiation detectors LICENTIA PATENT VERWALTUNGS GmbH 25 March 1974 [26 March 1973 (2) ] 13112/74 Heading G1A [ Also in Division H1] A pyroelectric detector utilizes a crystal of pyroelectric material exhibiting a temperaturedependent phase change from one ferro-electric crystal structure to another, or from a ferroelectric to an anti-ferroelectric crystal structure, the detector being operated in the region of the phase change, in which region the sensitivity of the detector is highest. Suitable crystals are mixed crystals of barium titanate with strontium titanate, barium zirconate, barium stannate or barium antimonate, potassium niovate with potassium tantalate, barium zirconate with lead zirconate and sodium niovate with lead zirconate, the constituents being selected in accordance with the desired phase transition temperature. In the case of a crystal whose spontaneous polarization as shown in Fig. 2 shows a normal hysteresis, the mode of operation is as follows. The crystal is first poled at point 1 above the operating range. Radiation to be detected sets up operating point 2 which is displaced to point 3 when the radiation is switched off and the change of polarization is measured. Renewed irradiation would effect displacement to point 4, accordingly either simultaneously or consecutively a suitable electrical field is applied to effect displacement to point 2, optionally using an additional heat input. As shown in Fig. 3 a pyroelectric crystal is cut perpendicularly to the polar axis to provide disc 1 to which electrodes 2, 3 are applied. Incident radiation is modulated by a rotating diaphragm. An image may be formed by using a plurality of detectors in a matrix, or electrode 2 may be omitted and the image read using the vidicon principle.
Patent GB-661803-A (GB)
Title: Improvements in vinylidene chloride-vinyl chloride copolymer compositions for makingshrinkable, translucent films
IPC: C08K5/11
Filed: 1949-05-17
Abstract: A composition consists of (a) from 88.75 to 95.7 per cent by weight of the copolymer of from 70 to 77 per cent of vinylidene chloride copolymerized with from 30 to 23 per cent of vinyl chloride, and (b) from 11.25 to 4.3 per cent in the aggregate of (1) from 0.3 to 1.25 per cent of tetrasodiun pyrophosphate, (2) from 2 to 6 per cent of dibutyl sebacate and (3) from 2 to 4 per cent of ethyl phthalyl ethyl glycolate.
Patent GB-131552-A (GB)
IPC: G03B19/18
Abstract: 131,552. Royle, T., and Whitehead, W. Nov. 6, 1918. Tension arrangements. - To keep the driving-chain a of a kinematograph projector taut an idler sprocket b is pressed into and kept in engagement with the chain by a spring e acting on the arm d carrying the sprocket.