baber/WOPTO huggingface dataset:
Patent GB-1191314-A (GB)
Title: Method of obtaining flexible reflecting laminates, more particularly for projection screens, and laminates obtained thereby
Inventor: BURGEOT LOUIS RENEE ALBERT PIERRE
IPC: G03B21/60
Filed: 1967-06-21
Abstract: 1,191,314. Embossing. L. R. A. P. BURGEOT. 21 June, 1967 [29 June, 1966; 30 May, 1967], No. 28673/67. Heading B6J. [Also in Divisions B5 and G2] A method of making a flexible laminate suitable for use as a projection screen comprises applying a first reflecting layer 16 of metal e.g. by vapour deposition to a surface of a first flexible layer 1a applying the free surface of the first reflecting layer to a surface of a second flexible sheet 2a, at least one of the sheets being transparent and embossing the laminate, on surface thereof occupied by a transparent flexible sheet by a former, the depth of the imprint of which is more than the combined thickness of the said transparent sheet and the first reflective layer. The counter-former may be flat to produce a grained laminate (Fig. 8) or engraved to produce a goffered laminate (Fig. 9). In a preferred embodiment a second reflecting layer 26 is applied to the surface of the second flexible sheet and the two reflecting layers adhered e.g. by interposed adhesive. The specified flexible sheet material is polyethylene terephthalate, the specified metal aluminium.
Patent GB-750817-A (GB)
Title: Improvements in or relating to electronic adding circuits
Inventor: LUCAS JOHN HAROLD
IPC: G06F7/50
Filed: 1953-10-19
Abstract: 750,817. Digital electric calculating-apparatus. POWERS - SAMAS ACCOUNTING MACHINES, Ltd. Sept. 27, 1954 [Oct. 19, 1953], No. 28837/53. Class 106 (1). A half-adder, Fig. 1, comprises a cold cathode gas-filled digit output triode DOT, a cold cathode gas-filled carry output triode COT, a diode coincident gate CI1, CI2, to control the potential of the trigger electrode of the carry output triode, a diode mixing circuit MC1, MC2, co-operating with the coincident circuit to control the potential of the trigger electrode of the digit output triode, a resistor R3 common to the cathode circuits of the carry output and digit output triodes to raise the cathode potential of the digit output triode thereby to inhibit the striking of the digit output triode when the carry output triode is conducting as a result of a potential transmitted to its trigger electrode from the coincident gate and a delay circuit R4, K, linking the diode mixing circuit to the trigger electrode of the digit output triode to prevent triggering of the digit output triode prior to the establishing of the inhibiting potential therefore. A single input at either A or B passes through one of the mixing diodes MC1, MC2, is delayed by the circuit R4, K, and fires the tube DOT giving an output D. Simultaneous inputs at A and B fire tube COT, raising the potential of the cathodes of both tubes COT and DOT, and preventing the tube DOT firing when the mixed inputs A and B reach its trigger electrode after being delayed by the network R4, K. Thus a single input causes an output D, slightly delayed and two simultaneous inputs cause an output C. In a parallel adder, Fig. 2, each stage consists of two half-adders HA similar to that of Fig. 1, with the exception that the delay circuit R4, K of the second half-adder is longer than that of the first half-adder, being sufficiently long to permit through-carry before the digit output tube fires. The adder is said to be particularly adapted for record card control where extreme high speed is unnecessary.
Patent GB-1465867-A (GB)
Title: Process control system
IPC: G06F3/00
Filed: 1975-07-09
Abstract: 1465867 Analogue-digital interfacing YOKOGAWA ELECTRIC WORKS Ltd 9 July 1975 28885/75 Heading H3H In process control, analogue signals of different types and ranges from sensors 101 to 104 are converted to voltage signals of standardized range and then into pulse-width or frequency signals 5, which may be edited, G, and then into digital signals, held in registers (not shown) and fed to a digital control device in block 9, output digital signals from which are converted to pulse-width or frequency, to standardized voltage and finally to analogue signals for controlling the process. As shown, analogue signals are obtained from a thermocouple 101, resistance thermometer 102, differential pressure transducer 103 and an analyser 104; and the process is controlled by current to a valve 2. Optical isolation is provided for the pulse-width signals, Figs. 3 and 4 (not shown), and D.C. transformer isolation for the power supply to modules 4 and 41. The editor 6 may comprise jumper connections or a switching matrix. Some of its outputs are converted back to analogue for an alarm and trend recorder device 10. Printed circuit modules are used.
Patent GB-1397303-A (GB)
Title: Bulding elements
IPC: E04C2/284
Filed: 1972-06-20
Abstract: 1397303 Building panels GRANGES ESSEM AB 20 June 1972 [24 June 1971] 28896/ 72 Heading E1B A building panel comprises a metallic U- section shell 10, a series of slabs 17 or 71-74 held in co-acting guides 21 and 22 and spaced apart and supported by loose H-section members also held in the co-acting guides. The guides may be defined by inturned flanges 15 and 16 and strips 18 and 19 nailed or rivetted to the shell sides 13 and 14 (Fig 1), by deformations in the shell sides (Fig 6) or by pegs, flanges or triangular strips secured to the shell sides or by grooves formed in the shell sides. The shell sides may be separate members secured to the web 61. The ends of the element are closed by further members 63 of similar section to the shell sides and secured to the web 61. Further sheets of insulating material 25 may be provided and the space 34 may be filled. A building element may comprise two panels secured together back to back in which case one of the webs 11 may be omitted.
Patent GB-895392-A (GB)
Title: Monoazo-dyestuff of the benzene-azo-pyrazolone series and process for its manufacture
Filed: 1959-08-24
Abstract: The invention comprises the monazo dye of formula <FORM:0895392/IV (c)/1> which is prepared by coupling the diazo compound of 2 : 4-dichloro-6-methyl-aniline with 1 - (21 - chlorophenyl) - 3 - methyl - 5 - pyrazolone.  The dye gives a yellow colour in nitro lacquers, oils and waxes.
Patent GB-500751-A (GB)
Title: Theft-proof box or receptacle for the safe depository of a bottle or bottles, letters, parcels or the like in houses, shops, factories and like places
IPC: A47G29/20
Filed: 1937-10-23
Abstract: 500,751. Receiving - devices to be mounted in doors &c. HIBBERT, G. Oct. 23, 1937, No. 28947. [Class 18] A receptacle for receiving full bottles of milk and for facilitating the return of empty bottles, and for receiving letters, parcels, &c. consists of a container part 7 pivoted at 8 on the inside of a door 1 beneath an insertion and delivery opening, an extension 9 being hinged at 10 to a plate 11, which may be of adjustable length, itself pivoted to a plate 4 which is pivoted at 13 to the front of the door &c. and has a handle 5 by which it may be tilted. In the tilted position a full bottle &c. may be inserted, whereafter the raising of plate 4 causes a spring tooth 15 to engage to the right of pivot 10 so that the container cannot again be tilted when this tooth is disengaged by hand. Empty bottles &c. are placed in the container and their removal is permitted through the opening when tooth 15 is in the position shown. A bell actuated electrically may be arranged to ring at all times when the container is not vertical. A recording meter indicating the number of full bottles inserted in a given time may be mounted on the container.
Patent GB-261431-A (GB)
Title: Improvements in method of producing designs in fur and articles obtained thereby
IPC: A41H41/00
Filed: 1926-04-26
Abstract: 261,431. Horstmann, F. W. Sept. 22, 1925, [Convention date]. Furs.-The surface of fur is cut at intervals in a series of waves of uniform height by moving the fur towards or from the cutting means. The colour effects so produced may be varied by dyeing the fur before cutting. The operation may be carried out by the machine described in Specification 258,832.
Patent GB-895839-A (GB)
Title: Improvements in and relating to nuclear fuel elements
IPC: G21C3/64
Filed: 1959-08-25
Abstract: 895,839. Nuclear fuel. UNION CARBIDE CORPORATION. Aug. 25, 1959 [Aug. 27, 1958], No. 28961/59. Class 39(4). A nuclear fuel. element comprises a graphitic matrix with up to 70% by weight of a fissile actinide monocarbide distributed therein. The material may be produced by 'baking a mixture of graphite, coal tar pitch, and uranium, thorium, or plutonium, or an oxide, halide, or carbide thereof, at a temperature not exceeding 2050‹C. (e.g. 1600‹- 2000‹C.) in an inert atmosphere containing a trace of nitrogen; the mixture should contain an excess of carbon over the stoichiometric amount necessary for the formation of the actinide monocarbide. The graphite may be formed by heating a mixture containing carbon black to 2400‹C. in an inert atmosphere or under vacuum.
Patent GB-650370-A (GB)
Title: Improvements in or relating to apparatus for boiling water and brewing and storing heated liquids such as tea, coffee and like beverages
IPC: A47J31/44
Filed: 1948-11-09
Abstract: 650,370. Controlling gas burners. JACKSON BOILERS, Ltd., and MUSTILL, C. W. Nov. 9, 1948, No., 29047. [Class 75(i)] '[Also in Group VI] An apparatus for the brewing and storage of tea, coffee, &c. comprises a central boiler 1 and side urns 2, 2, the side urns being heated by gas supplied through a valve forming part of, or associated with, the valve supplying gas to the boiler and operatively connected therewith. The control valve 12 comprises a hollow plug having two chambers 13, 14 interconnected by a passage 15. The chamber 13 has two ports 16 at right angles to each other, by which gas from the main supply pipe 7 may pass to the burner of the boiler, and the chamber 14 has a port 19 by which gas may pass to the burners of the side urns through the outlet 20, the ports being so arranged that when the gas under the boiler is turned down, the gas under the side urns is turned up, and vice versa. The passage 15 permits sufficient gas to pass to the side urns to keep them burning when gas is passing to the burner of the boiler. The valve is operated from the draw-off tap 6 by the shaft 5. The primary valve 8 has a pilot jet 11 which is directed towards the burner of the boiler when the valve is " on ", and also has a pin 24 attached thereto which engages with a lever 23 on the valve 22 so arranged that the valve 22 in the pipe to the side urns is automatically closed when the primary valve 8 is closed, but the valve 22 has to be independently re-opened upon re-opening of the valve 8.
Patent GB-197904-A (GB)
Title: An improved variable electric condenser
Filed: 1922-10-25
Abstract: 197,904. Hill, C. G. May 20, 1922, [Convention date]. Condensers.-The armatures of a variable condenser are arranged in the form of a resilient coil which may be tightened or loosened to vary the capacity of the condenser. Interlocked spirallywound strips 5, 6 of spring metal are secured at their outer ends to terminal posts 7, 11 and at their inner ends to a drum 8 mounted on a spindle 14 which can be rotated by a knob 4. The strips 5, 6 may be coated with insulating-varnish, or they may be separated by interleaved strips 12, 13 of paper or other insulating-material. The condenser is mounted between insulating-discs 1, 2 and enclosed in a cylindrical casing 24. An adjustable friction device in the form of a leather washer 18 bearing against the rear side of the disc I serves to maintain the drum 8 in the position to which it is adjusted.
Patent GB-291295-A (GB)
Abstract: 291,295. Smith, S., and Mowat, A. L. Nov. 24, 1927. Cards, wire.-The free ends of the teeth of card clothing for the fancy rollers of carding-engines are so disposed with reference to the crowns that when working in contact with the teeth on the cylinder they maintain their original height or increase it slightly. The length of the tooth from the crown B to the tale C is lengthened and the angle of the tooth is such that the free end A does not advance beyond the crown.
Patent GB-173113-A (GB)
Title: Improved fender or curb for domestic hearths
IPC: F24B1/198
Filed: 1920-10-16
Abstract: 173,113. Trollope, R. L. Oct. 16, 1920. Fenders.-A fender or curb is constructed of wood, wood substitute, compressed paper or the like, with an inset of tiles. enamelled or other metal, silvered or other glass, &c. The form shown comprises tiles c fitted in recesses a at the top of the frame, which has a metal backing D. Reference has been directed by the Comptroller to Specifications 4213/83, 6781/94, and 22810/10.
Patent GB-189437-A (GB)
Title: Improvements in and relating to sewing machines
IPC: D05B29/02
Filed: 1922-10-27
Abstract: 189,437. Prach's Mechanische Werkstatten. Nov. 24, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Sewing - machines; presser-bars lifting automatically. - In sewing-machines particularly of the rotating shuttle and central spool type for use in darning embroidery &c. the presser-bar is lifted by the needle-bar, just before the latter reaches the top of its stroke, by the engagement of a bess f on the needle-bar with a pivoted member d mounted on an extension c secured to a boss b on the presser-bar. The extension is bent to limit the upward movement of the member d, but the parts are cut away at e so that it may be turned downwards into the position shown at d<1> when the machine is to be used for ordinary purposes.
Patent GB-626877-A (GB)
Title: A process of refining intensively cracked gas oil and producing heating oil and polymerized products therefrom
IPC: C10G25/00
Filed: 1946-10-02
Abstract: Gas oil is subjected to high temperature cracking and, from the cracking products, the fraction boiling in the range 350-700 DEG  F. is separated.  This fraction is contacted in liquid phase with a catalytic absorptive clay at a space velocity between 1/2 and 2 volumes of the fraction per volume of the clay per hour while the clay is at a temperature in the range 350-450 DEG  F. a product is obtained from which stable heating oil and useful polymer by-products can be isolated.  The cracking process may be p  carried out at temperatures in the range 1050-1500 DEG  F. in the presence of steam at low pressures of about 1 to 2 or several atmospheres.  The 350-700 DEG  F. fraction is an aromatic gasoline distillate containing relatively large amounts of high boiling phenols unstable sediment-forming materials and unsaturated compounds, particularly conjugated double bond compounds.  As the result of the clay treatments, the phenols, sediment-forming materials and unsaturated compounds are converted to a thermoplastic resinous product.  The products of the clay treatment may be separated from clay, washed with caustic, and then re-run to give a heating oil distillate and resin as bottoms. The clay employed may be floridin earth, fuller's earth, acid-treated clay, heat-activated clay, zeolite or similarly active siliceous clays.  In an example attapulgus clay is employed.ALSO:Gas oil is subjected to high temperature cracking and, from the cracking products, the fraction boiling in the range 350-700 DEG  F. is separated.  This fraction is contacted in liquid phase with a catalytic absorptive clay at a space velocity between 1/2 and 2 volumes of the fraction per volume of the clay per hour while the clay is at a temperature in the range 350-450 DEG  F.  A product is obtained from which useful polymer by-products can be isolated.  The 350-700 DEG  F. fraction is an aromatic gasoline distillate containing relatively large amounts of high boiling phenols, unstable sediment-forming materials and unsaturated compounds, particularly conjugated double bond compounds.  As the result of the clay treatment, the phenols, sediment - forming materials and unsaturated compounds are converted to a thermoplastic resinous product.  The products of the clay treatment may be separated from clay, washed with caustic, and then re-run to give a distillate and resin as bottoms.  The clay employed may be floridin earth, fuller's earth, acid-treated clay, zeolite or similarly active siliceous clays.  The resin may be utilized as an adhesive for sawdust in compounding wallboard or as an extender and plasticizer for coating compositions, plastics, and natural and synthetic rubber compositions.  It can be sulphurized or be co-vulcanized with rubber or unsaturated copolymers.  In an example, attapulgus clay is employed as the catalytic absorptive clay and the 350-700 DEG  F. fraction is obtained from the high-temperature steam-cracking of gas oil.
Patent GB-1308248-A (GB)
Title: Torque measuring means for machine tools
Inventor: LEDERGERBER A
IPC: B23Q17/09
Filed: 1970-06-17
Abstract: 1308248 Measuring torque electrically WERKZEUGMASCHINENFABRIK GILDEMEISTER & COMP AKT-GES 17 June 1970 [20 June 1969]  29426/70 Headings G1W G1N [Also in Division B3] A device for measuring the torque applied to the spindle of a machine tool comprises a torsion member 14 secured at one end to the spindle 10 and having a ring gear 13 at its other end engaging a driving gear 16, and a radial roller bearing 15 for sustaining lateral forces on the torsion member. The torsion member comprises longitudinal bars connected at one end to the ring gear 13 and at the other end to a hub 13a keyed to the spindle 10 by key 12 Fig. 2 (not shown). The twist in the torsion member is measured by elements 17 connected in a bridge circuit the output of which is amplified by amplifiers situated in the ring 19 and transmitted to non-contacting device 20 to control the machine damping devices 21, 22 are also supplied on the bars of the torsion member. The torsion member and its hub are secured to the spindle by nut 18 and ring 19. The end of the hub supporting bearing 15 is conical and engages a conical part 11 of the spindle. The hub is advanced along the spindle by nut 18 until the hub is expanded sufficiently by the conical part 11 to obviate play in the bearing 15.
Patent GB-1366546-A (GB)
Title: Copper refining process
IPC: C22B7/04
Filed: 1971-10-14
Abstract: 1366546 Obtaining and refining copper LA METALLO-CHIMIQUE S A 14 Oct 1971 [14 Oct 1970] 29587/73 Divided out of 1366545 Heading C7D The subject-matter of this Specification is similar to that described in Specification 1366545 but the claims are directed to the steps of: - (i) melting copper-bearing materials in the presence of solid material containing metallic iron to form a melt bath which includes a slag phase. (ii) reducing any combined copper, lead, tin or nickel in the copper-bearing materials to the  elements with solid-state iron in the presence of silica while agitating the reaction masses to prevent vapourisation of any lead or tin present as oxides. (iii) separating the resulting black copper containing the above-mentioned elements from the slag which contains iron silicate. and (iv) oxygen-blowing the black copper in the presence of silica to selectively oxidize impurities of higher oxygen affinity than copper.
Patent GB-643288-A (GB)
Title: Improvements in or relating to bicycle and like cranks
IPC: B62M3/00
Filed: 1947-11-06
Abstract: 643,288. Coupling rotary elements. LEA, W. B. CHATER-. Nov. 6. 1947, No. 29653. [Class 80(ii)] [Also in Group XXII] A bicycle crank or the like in which a chain wheel or its support 12 is brazed or welded over a spigot 28 on a crank arm 10 has a shoulder 32 on the crank arm which engages a face 38 on the chain wheel or its support to prevent relative rotation. The faces 32, 38 may be flat or arcuate and eccentric with the spigot and the chain wheel support may have more than three arms or may be a disc, or the chain wheel may be mounted directly on the crank arm.
Patent GB-158750-A (GB)
Title: Improvements in measuring rules for the use of coal miners, timber men and the like
IPC: G01B3/08
Filed: 1919-11-28
Abstract: 158,750. James, T. L. Nov. 28,1919. Tools for setting-out work.-Relates to th type of rule for coa miners and timbermen described in Specification 15601/12, having a pair of equal wooden laths a, b sliding the one in guides c upon the other, so as to vary the extension up to double the length of a lath, together with a scriber (not shown) attached to the end of one lath, and consists in locking the rule in adjusted position by means of a lever d, pivoted at d<3> to the lath carrying the guides near its end, and having an upstanding arm d<1>. That part d of the lever which is in line with the latter is tapered, so that when it is turned through a right angle it will tend to wedge the laths apart against the constraint of the guide, and thus clamp the parts in their adjusted position.
Patent GB-1471488-A (GB)
Title: Endocardiac electrode devices
IPC: A61N1/375
Filed: 1974-07-04
Abstract: 1471488 Cardiac electrodes H R LAGERGREN 4 July 1974 [4 July 1973] 29784/74 Heading A5R An endocardiac electrode for intracardially stimulating the heart comprises a head 3 with electrically conductive outermost surface areas connected to an elongate insulated conductor 1, the areas being spaced to provide an effective head area large compared with the sum of the said surface areas, solid material being present at the longitudinal axis of the head and any material inward of each of the areas being formed and disposed to afford room for tissue to grow past the areas and closer to the axis when the electrode is in use. In Figure 1, head 3 comprises wire loops 4, 5 stabilised by a metal rod 6 connected to conductor 1. In Figure 2a, head 3 is starshaped in cross section with only its edges uninsulated. Larger recesses are provided in Figure 3a. In Figure 4 a wire or strip (11) passes around electrically insulating material (12). The electrically conductive material may he a helix
Patent GB-1122460-A (GB)
Title: Production of lactams
IPC: C07D201/04
Filed: 1967-06-28
Abstract: o -Decalactam is prepared by subjecting cyclodecanone oxime to the Beckmann rearrangement and using e -caprolactam as solvent for the o -decalactam.  The e -caprolactam may be added after reaction or may be formed in situ by incorporating cyclohexanone oxime into the reaction mixture.  The lactams may then be separated by distillation. The oxime starting materials may be prepared by treating a mixture of cyclodecanone and cyclohexanone with a suitable hydroxylamine salt.
Patent GB-865918-A (GB)
Title: Improvements in or relating to electrical resistors
Inventor: BALMER JOHN RODNEY
IPC: H01C17/065
Filed: 1957-09-23
Abstract: 865,918. Refractory compositions. MINISTER OF AVIATION. Dec. 2, 1958 [Sept. 23, 1957; April 3, 1958], Nos. 29799/57 and 10760/58. Class 22. [Also in Group XXXVI] A resistive material is made from alumina, tin and antimony oxides and a vitrous diluent having a lower melting point than alumina, by grinding the materials, pressing them and then firing the mixture. One such material comprises tin and antimony oxides 47%, glass 47%, alumina 6%. Examples using other proportions are also given. Resistors are made from the material by mixing the system with 0À5% gum acacia and 5% water and pressing at 5 tons per square inch into flat plates. Silver contacts are painted on to the ends and the mixture fired. A table is given showing resistivities and temperatures co-efficients of various compositions of mixture.
Patent GB-1052405-A (GB)
IPC: E21D15/44
Filed: 1963-07-26
Abstract: 1,052,405. Hydraulic pit props. GEWERKSCHAFT EISENHUTTE WESTFALIA. July 26, 1963 [July 27, 1962], No. 29850/63. Heading E1E. An hydraulic pit prop having a working chamber 6 and an annular chamber 18 is provided with a unit 22 having a one way valve 11 and reversible pipe connection 16 in communication with the chamber 18 through passages 9 and 15, respectively. The arrangement is such that pressure fluid may be fed to the chamber 18 through the passage 13 in order to retract the prop whilst during expansion fluid is initially discharged therefrom via both passages 9, 15. When the piston is almost fully extended it establishes communication between the chamber 6 and the discharge passage 9.