baber/WOPTO huggingface dataset:
Patent GB-1073502-A (GB)
Title: Improvements in or relating to pulse generating circuit arrangements
IPC: H03K5/02
Filed: 1965-03-12
Abstract: 1,073,502. Pulse circuits. HOLLANDSE SIGNAALAPPARATEN N.V. March 12, 1965 [March 18, 1964], No. 10679/65. Headings H3P and H3T. In a cathode follower 1 having the grid and cathode connected to tappings on a potential divider across a D.C. supply so that the valve 1 is normally non-conductive, the valve 1 is turned on by a transistor 17, connected across part of the potential divider and controlled by a further electronic switch 15. In the pulse amplifier shown, devices 1, 17, 18 are normally non-conductive until turned on by a pulse from 13, when an amplified pulse having a short rise time appears at the cathode of valve 1. The potential divider 6, 7, 9, 10 may utilize a single Zener diode at 9. Triode 18 may be replaced by an NPN transistor. PNP transistor 17 may be replaced by an NPN if 18 is replaced by a PNP transistor. The output may be fed to PPI deflection coils so as to provide a rapid sweep on a cathode-ray tube.
Patent GB-113063-A (GB)
Title: Improvements in and connected with Prismatic Glassware for Illuminating Purposes.
IPC: F21V5/00
Filed: 1917-07-25
Abstract: 113,063. Holophane, Ltd., (Holophane Glass Co.). July 25, 1917 Globes; shades. - A compound glass enclosure comprises two layers of glass enclosing an intermediate air space, the two layers being provided with prisms running in the same direction with their faces at such an angle that most of the rays from the light source pass through the globe and are bent downwards. The prisms may be formed on the inner surface or outer surface of the outer layer and upon the outer surface of the inner layer. The prisms may extend only over such parts of the surfaces as are necessary for preventing the refraction of the light rays into the enclosure and the absorption of the same. Fig. 4 shows one form of glass shade having horizontal prisms 2, 4 on the inner and outer glass layers 1, 3, the two glass layers being secured together by a metal nut 13 engaging the screwed neck of the inner layer 1. When great diffusion is required, any of the surfaces not formed with prisms may be provided with diffusing-ribs or may be sand-blasted or etched.
Patent GB-727421-A (GB)
Title: Tetrakisazo dyestuffs
IPC: C09B43/14
Filed: 1952-04-28
Abstract: The invention comprises tetrakisazo dyestuffs corresponding as free acids to the general formula <FORM:0727421/IV (c)/1> (wherein X represents hydrogen or methyl), which dye cotton and regenerated cellulose fibres red-orange shades.  They may be prepared by coupling diazotized 4-aminoazobenzene-3 : 41-disulphonic acid or its 6-methyl derivative with 1-amino-3-acetylaminobenzene or its 6-methyl derivative and converting the resulting aminodisazo dyestuff into the corresponding urea.  In examples, the following dyestuffs are treated with phosgene: (1) 4-aminoazobenzene-3 : 41-disulphonic acid --> 1 - amino - 3 - acetylaminobenzene; (2) 4-aminoazobenzene-3 : 41-disulphonic acid --> 1-amino-3-acetylamino-6-methylbenzene; (3) sulphanilic acid --> 1-amino-3-methylbenzene-6-sulphonic acid --> 1 - amino - 3 - acetylaminobenzene.  Specification 13727/09, [Class 2 (iii)], is referred to.
Patent GB-145094-A (GB)
Title: Improvements in long base single observer rangefinders
IPC: G01C3/12
Filed: 1916-07-31
Abstract: 145,094. Barr & Stroud, Barr, A., and Stroud, W. July 31, 1916. Drawings to Specification. Range-finders.-In long-base single-observer range-finders, a system with unit magnification in the plane of triangulation is placed between each end-reflector and its associated telescope.
Patent GB-1102960-A (GB)
Title: A case for small articles
IPC: B65D43/20
Filed: 1966-03-11
Abstract: 1,102,960. Containers. GILLETTE CO. 11 March, 1966 [11 March, 1965], No. 10779/66. Heading B8P. A case for small articles such as safety razors &c. comprises a number of panels, which may be transparent, which are slidably supported in guideways in the inside surface of the side walls of the case, the panels including co-operating means to cause cumulative movement from a stacked formation to one in which the panels seriatim form a cover for the case.
Patent GB-1173075-A (GB)
Title: FM Modulator
IPC: H03C3/22
Filed: 1967-03-07
Abstract: 1,173,075. Frequency modulation. FUJITSU Ltd. 7 March, 1967 [7 March, 1966], No. 10781/67. Heading H3R. Linearity of a frequency modulator is improved by employing a pair of variable-capacity diodes D1, D2, one biased to the peak and the other biased to the valley of its differential frequency/voltage characteristic. In order to compensate for differences in the diode characteristics a level regulator LR may be included in the modulation signal path.
Patent GB-1524901-A (GB)
Title: Electrical terminal
IPC: H01R4/24
Filed: 1977-02-17
Abstract: 1524901 Direct connections AMP Inc 17 Feb 1977 [17 March 1976] 10809/76 Heading H2E A one piece sheet metal electrical terminal comprises a pair of parallel plate members 1 joined at two corners by a pair of parallel tie members 2, and wing members 5 extending from the sides of one or both plate members and having inwardly turned portions 6 to provide shoulders 7, the arrangement being such that when an insulated electrical wire is forced through the open ends of aligned slots 3 in the plate members 1 to cause the insulation to be penetrated and electrical connection to be established, the shoulders 7 prevent withdrawal of the wire from the slots 3.
Patent GB-166686-A (GB)
Title: Improvements in or relating to photographic transfer processes
IPC: G03C1/805
Filed: 1920-04-19
Abstract: 166,686. Mills, T. A. April 19, 1920. Paper.-The paper-support for transfer processes is impregnated with a weak solution of paraffin wax, as for example 4 or 5 grains in one ounce of benzol, so as to leave the paper surface apparently free from any continuous layer of wax. The emulsion is applied directly to the treated paper and the print transferred subsequently in the ordinary way.
Patent GB-791948-A (GB)
Title: Improvements in and relating to current-collecting pantographs
IPC: B60L5/22
Filed: 1955-04-15
Abstract: 791,948. Current collectors for electric traction. ETABLISSEMENTS L. FAIVELEY April 15, 1955 [April 16, 1954], No. 10877/55. Class 104 (3). In a current collecting pantograph having a transverse current collector supporting member at the apex of the pantograph the supporting member is capable of movement in a plane vertical to the track independently of the pantograph. The bows 19, 20 are attached by levers 22 resiliently supported at 23 through the interposition of rubber on each side of the bowsupporting member 10. One or two bows 19 or 20 can be attached to each side of the member 10, each bow being supported on separate levers 22. The bows 19, 20 can be terminated by small horns 21. The member 10, provided with fibre glass horns 18 or formed integrally with the horns 18 and made throughout of fibre glass, is mounted in stirrup shaped members 12 formed on a rod 9 slidably supported by a compression spring 13 mounted in a spring holder 8. The spring holder 8 is attached to a fork 7 which carries roller bearings 3, to which the upper arms 1, 2 of the pantograph are attached and ball bearings 5, 6 in which a supporting pin 4 is mounted. The fork 7 terminates in a shaft 14 maintained in a vertical position by arms 1, 2 and rods 15, 16 attached at one end to the arms 1, 2 and at the other to a collar slidable on the shaft 14. Tubes 24 connect side by side pantograph systems together.
Patent GB-1505805-A (GB)
Title: Closed containers
IPC: B65D77/20
Filed: 1976-03-18
Abstract: 1505805 Opening containers OHLER EISENWERK THEOB PFEIFFER 18 March 1976 [19 March 1975] 10879/76 Headings B8C and B8D An aluminium cover sheet 4 which has been secured to an aluminium container 1 by folding with an edge flange 3 extending around an open top of the container, comprises backfolded portions 5 which are provided at opposite sides of the container and which can be gripped and pulled to separate the cover sheet from the container. Three sides of each back-folded portion 5 are incorporated in the folded connection with the container edge flange.
Patent GB-363589-A (GB)
Title: Fastening device of the interengaging elements type
IPC: A44B19/04
Filed: 1931-04-13
Abstract: 363,589. Strip fastenings. LEONARD, A. P. M., 32, Rue Mathurin RÚgnier, Paris. April 13, 1931, No. 10905. [Class 44.] In a fastening of the kind comprising two series of elements arranged so that in the fastening position the members of one series alternate with those of the other, the members 21 carried by supports 2, 4 have longitudinal apertures, and each member has mounted therein a cylindrical &c. bolt member 22 having limited longitudinal movement and adapted to be partly projected from its housing member into engagement in the aperture of the adjacent member. The members 22 are successively operated by a spring-member 26 carried by a slider 24 and adapted to pass along the aligned apertures, the member 26 first moving a member 22 to its limit of travel in the direction of movement of the slider and then yielding to pass from that member 22 into similar operative engagement with the next one. Member 26 is carried by an arm 25 extending through a lateral slot 23 in the fastening members.. At the end of its fastening movement the slider may be removed if desired. A modification is described in which the supports 2, 4 are rigid, and the sliding bolt members, which may be provided only in one of the series of fastening elements, are simultaneously operated by a common operating bar to which they are connected either by rigid arms or by pivoted connected levers.
Patent GB-1159512-A (GB)
Title: Pulse-chopped Electron Beam Source
IPC: G21K1/04
Filed: 1967-03-08
Abstract: 1,159,512. Particle accelerators. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL 8 March, 1967 [31 March, 1966], No.10905/67. Heading H1D. A device for converting a continuous electron beam into a pulse-chopped beam, e.g. in an accelerator, comprises a first cavity 3, Fig. 1, in which under the influence of an axial magnetic field B and a transverse high-frequency electric field of frequency f a continuous beam issuing from an electron gun is swept over one or more off-axis apertures 7, Figs. 1 and 2, and a second cavity 10 in which under the influence of similar fields a series of electron bunches 9 produced at the aperture 7 are returned to the axis of the device at outlet aperture 12. The high frequency feed in cavity 10 may be of the same or a slightly different frequency to that in cavity 3. The aperture 7 may be a radial slot and may be in the form of an isosceles triangle with straight or curvilinear sides and with the base of the triangle towards the axis of the device. Alternatively, the partition plate 6 between the cavities may be replaced by a baffle 13, Fig. 5, with a straight edge 14 or with an edge in the form of a V, inverted or not, the straight edge or the point of the V lying in the axis of the device. The baffle arrangement is used when it is desired to achieve a strong coupling between cavities 3 and 10. The aperture or the baffle may be combined with a circular hole in registry with the axis of the device so that with the highfrequency field switched on or off a pulsechopped beam or a continuous beam may be produced.
Patent GB-1242927-A (GB)
Title: Calorimeter
IPC: G01N25/48
Filed: 1969-02-28
Abstract: 1,242,927. Calorimeters. WENDEL-SIDELOR S. A. Feb.28, 1969 [Feb.28, 1968], No.10946/69. Heading G1D. A calorimeter for calorimetric measurements of reactions between a liquid and a solid which is in pieces or lumps, e. g. the determination of the heat cleared by slaking quicklime for use in the iron and steel industry, comprises a reaction vessel 1 with hoppers 9 to allow rapid introduction of the solid into the vessel 1, and a thermocouple enclosed in a protective casing 16 extending to near the centre of the vessel 1, the casing protecting the thermocouple against being struck by lumps of the solid. The vessel 1 is provided with a semi-circular section bottom and a flat cover 7 which carries the hoppers 9, and the protective casing 16. The vessel and cover are formed of inner and outer steel sheets 4, 5 with interposed felt pads 6. The capacity of the vessel may be several hundred litres and the hoppers 9 are provided with slides 10 which enable solid material in the hoppers to be rapidly dumped into the vessel 1. A horizontal spindle 13 carrying blades 15 is carried in bearings 12 in the end walls of the vessel 1 so that the contents of the vessel may be stirred. Stuffing boxes 12a prevent leakage and a torque limiter is provided in the drive to the spindle 13 to protect the apparatus if abnormal resistance to rotation of the blades 15 were to occur. The blades are mounted in two sets, the protective casing 16 being disposed in the intervening gap with sufficient clearance to allow passage of the lumps of the solid material. The stuffing boxes 12a are carried in bearings 18 which allow the vessel to be inverted for the purpose of draining the contents after use. A locking arrangement is provided for holding the vessel 1 in the desired working position. In use water is placed in the vessel and the lime in lump form is placed in the hoppers 9 and introduced into the vessel at a desired moment. The temperature of the vessel contents is then measured with respect to time by the thermocouple and the heat generated by reaction can then be determined.
Patent GB-471694-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/00
Filed: 1936-04-16
Abstract: 471,694. Knitting-machines. WILDT & CO., Ltd., KENT, A. W., and HOLMES, H. H. April 16, 1936, No. 10974. [Class 74 (ii)] A circular machine of the superposed needlecylinder type, as e.g. described in Specifications 15008/00, [Class 74], and 24290/12, [Class 74 (ii)], is provided with means for causing needles to cast off after knitting at the feed and to return such needles to normal position for knitting again, together with latch-opening means for effecting the opening of the latches as the needles are restored to normal position. In a multifeeder machine, the loops may be cast off the needles and latch-opening means provided at one or more feeders. As shown, the latch-opening member may comprise a cam 33 shaped to provide a knife edge 34 which engages between the spoon of the latch 36 of the closed needle and the needle hook 37. Alternatively, a point obliquely disposed may be arranged to come between the latch and the hook, or a fixed or a revolving brush may act upon the latch. The revolving brush may be driven independently or may be driven from the needles. The brush may be replaced by a revolving member having a circular series of latch-opening elements. The casting-off cam arrangement may comprise a fixed cam 11 for action upon the slider knitting-butts to lower the needles to a casting-off level C and a boltcam or other pattern-controlled cam 13 for directing the slider butts into engagement with the cam 11. A fixed cam 14 acts to raise the lowered needles for subsequent knitting. The latch-opening cam 33 is located above the cam 14. Knitted fabrics.-The latch-opening may be facilitated by vibrating the needles vertically or sideways while they are passing from the casting-off position. The invention is applied to the production of hose &c. in string formation. Plain courses 3 are interposed between the toe pouch 4 and a few courses 5 of rib knitting, and then knitting is suspended on one set of needles to form an anti-run welt 6. Rib knitting is resumed, and the casting-off mechanism is put into operation to cause the plain needles to cast off their stitches to form a parting or separating course or courses 9 of rib loops.
Patent GB-635462-A (GB)
Title: Improvements in or relating to electric plug and socket couplings
IPC: H01R13/707
Filed: 1948-04-21
Abstract: 635,462. Two-part couplings combined with switches. GENERAL ELECTRIC CO., Ltd., and FAIRWEATHER, D. W. April 21, 1948, No. 11014. [Class 38 (i)] [Also in Group XXXVII] In a plug-and-socket coupling of the kind having a switch incorporated in the socket, the plug has a skirt 33 surrounding the pins which co-operates with means on the socket so that engagement of the plug permits closure of the switch whereupon a locking member 34 is projected into a slot 35 in the skirt to prevent removal of the plug while the switch is closed. The socket comprises a metal casing 4 and lid 5, the latter having a circular upstanding projection 22 surrounding the three socket contacts mounted in a porcelain base in known manner. A double-pole tumbler switch 2 also mounted in the casing 4 is operated by a spindle 27 rotatably mounted in the lid 5 and carrying an operating lever 28 at its outer end and an arm 29 at its inner end engaging the switch dolly 12. Arm 29 is slidable on the spindle 27 and is spring- urged towards the lid where it is engaged by a lug 31 when the plug is removed and thereby prevented from being rotated. The plug entry aperture in the projection 22 is normally closed by a pivoted cap 23. The plug comprises a tubular metal shroud 36 with a cable entry 42 at the side. The upper end of the shroud is closed by a member 37 to which is attached an insulating member 43 carrying terminals 38 and sockets 50 for cartridge fuses 49 situated in the connections to the live and neutral pins. The latter two pins also carry sockets 48 for the fuses and are mounted in an insulating member 46 as set forth in Specification 635,463, the member 46 being secured to the member 43. The earth pin 17 passes through member 46 to the earth terminal connected to the member 37 by an earth stem 44. The lower end of the shroud forms the skirt 33, which, when inserted into the socket, depresses the arm 29 away from lug 31 so as to render the switch operable. The locking member 34 is attached to the arm 29 so as to be brought into operation when the switch is closed. The plug is also secured in the socket by a screw-ring 26 carried behind a flange 40 on the shroud 36 and engaging external threads on the projection 22. Gaskets 41, 20 on the projection 22 and between the casing 4 and lid 5 respectively render the coupling watertight. When the plug is removed a gasket 24 on the cap 23 preserves the watertightness of the socket. An insulating member 14 surrounding the sockets has keyways 18 with which projections 45 on the plug co-operate to prevent the insertion of an incorrect plug.
Patent GB-835294-A (GB)
Title: Fuel supply systems for aircraft engines
Inventor: BUCKINGHAM DAVID EDWIN JAMES
IPC: F02C7/16
Filed: 1957-04-04
Abstract: 835,294. Jet-propulsion engines. NAPIER & SON Ltd., D. April 3, 1958 [April 4, 1957], No. 11084/57. Class 110 (3). A jet-propulsion engine which fimctions in one mode by using a gas turbine-driven compressor to supply air to a main combustion chamber, and in another mode as a ram jet, the fuel supply to the turbine being then cut off and the compressor allowed to windmill while the ram air passes directly to a main combustion chamber, has a fuel system including a first fuel pump driven by and supplying fuel to the gas turbine and a second fuel pump, for supplying fuel to the main combustion chamber, arranged to be driven by an independent motor. When the engine is operating in the first mode the turbine shaft 29 drives, by gearing 71, 72, 76, the first fuel pump 69, a hydrogen peroxide pump 73 and a pump 66 supplying oil to servomotors, and further, through a freewheel 82, drives the second fuel pump 58, a servomotor oil pump 84 and lubricating oil pumps 61, 63. At a predetermined speed, sensed by a Mach meter, the engine changes to the second mode of operation, when the supply of paraffin and hydrogen peroxide to the turbine combustion chambers is cut off and the air entering at the front of the engine is passed directly to the main combustion chamber where it is supplied with paraffin by the second fuel pump 58 which is driven, through gearing 83, by an air turbine 91 driven by the ram air. The gearing 83 also drives the lubricating oil pumps 61, 63 and the servomotor oil pump 84. The pumps and the gearing are enclosed in a thermally-insulated compartment. The servomotors, which operate flap valves to effect the change-over from one mode to another, and control the position of the jet pipe bullet, are themselves operated by oil flowing in closed circuits. The paraffin fuel passes first through a heat-exchanger in a lubricating oil circuit and then through a second heat-exchanger disposed in the servomotor oil circuit. Specifications 835,293 and 835,295 are referred to.
Patent GB-215392-A (GB)
IPC: G05B11/01
Filed: 1924-05-05
Abstract: 215,392. Bayerische Elektrizitõts- Industrie Rott & Co., and Visser, A. P. May 5, 1923, [Convention date]. Mercury and other conducting iiquid switches. -A tiltable apparatus comprises one or more solid resistance bodies 2, 3, 4, Figs. 2 and 2<a>, a chamber 7 containing mercury, and passages 12, 22 through which the mercury flows, gradually reducing the resistances and finally short-circuiting them through metal caps 80. The triple resistance apparatus shown is adapted for use with a three-phase motor, the leads being attached to terminals 5, 6, 15. Resistance bodies of conical or other shapes may be employed. An exterior disconnecting switch may be attached to the tiltable apparatus. Salt solution may be used as the conducting liquid.
Patent GB-545412-A (GB)
Title: Improvements in or relating to the production of iso-or branched chained hydrocarbons
IPC: C07C5/27
Filed: 1940-07-01
Abstract: 545,412. Isomerizing paraffin hydrocarbons. STANDARD OIL DEVELOPMENT CO. July 1, 1940, No. 11108. Convention date, Aug. 31, 1939. [Class 2 (iii)]  Normal paraffin hydrocarbons are isomerized by 'treatment with an isomerization catalyst under isomerizing conditions in a mulci-stage process which is characterized in that the reaction is carried out in stages between which there is a temperature gradient, the last stage being maintained below the temperature employed in at least one other stage. It is preferred that more than one reaction vessel be employed, which are worked at different temperatures, the temperature decreasing as the reaction progresses. In some cases however when more than two stages are employed the second stage may be maintained at the highest temperature. If desired, different isomerization catalysts may be employed in the different stages. It is possible to carry out the process of the invention using only one reaction vessel, in which case the reaction is interrupted at intervals and resumed at a lower temperature. Hydrocarbons mentioned as suitable for treatmen. by the process of the invention include normal butane, pentane, bexane, heptane, octane, or mixtures thereof, straight run naphthas of low octane value, field butanes, i.e. paraffin mixtures resulting from the removal of olefinic constituents of refinery C, or C  5  cuts, waste gases of paraffinic nature evolved from thermal and/or catalytic alkylation and polymerization units, and normal alkyl naphthenes. The process may be carried out in either the liquid or the vapour phase at temperatures from 32‹F. to 350‹F. The preferred catalysts are aluminium chloride and bromide, with or without a promotor such as hydrochloric acid. In examples (1) normal butane is fed to an isomerization unit containing aluminium chloride and hydrogen chloride at 250‹F. for 20 minutes, and the resultant mixture then subjected to a further isomerization reaction at about 200‹C. for 1¢ hours. (2) Normal butane is subjected to the same reagents as in example (1) for 2 hours at 250‹C. and then to a further 8 hours at 200‹F.