baber/WOPTO huggingface dataset:
Patent GB-1420984-A (GB)
Title: Static electrical current converter with a by-pass switch
IPC: H02M7/12
Filed: 1973-05-17
Abstract: 1420984 Controlling converters ALLMANNA SVENSKA ELEKTRISKA AB 17 May 1973 [18 May 1972] 23477/73 Heading H2F In a three-phase bridge of controlled rectifiers 1 ... 6 (e.g. for HVDC power transmission) having a contact-making by-pass switch 11, provision is made for reinsertion of the bridge when the by-pass switch 11 is to be opened by turning on a series-connected pair of said controlled rectifiers (e.g. 2, 5) and simultaneously turning on at least one further controlled rectifier 6 so as to provide reverse current to reduce the current in the by-pass switch 11 substantially to zero. Switch 11 can thus take the form of a high speed circuitbreaker instead of an arc-drawing isolator in known arrangements. As described, each controlled rectifier 1 ... 6 can be formed from one hundred series-connected thyristors, three such bridges being connected in series between a D.C. line and earth. Under normal conditions, controlled rectifiers 1 ... 6 are phase-controlled conventionally but may be by-passed by switch 11 controlled manually or by a fault indicator. When the bridge is to be reconnected, switch 8 is closed so that the by-pass pair of controlled rectifiers 2, 5 can be triggered. Controlled rectifier 6 is also triggered by device 9 when the commutation voltage T-S passes through zero. A current thus flows from phase T via rectified 5, switch 11, rectifier 6 and phase S. This current is opposite in direction to the main current and when these two currents are substantially equal, transductor 13 reduces the current in coil 12 so as to open switch 11. If the first attempt is unsuccessful then switch 8 is allowed to remain closed and a further attempt made the next time voltage T-S becomes positive. Switch 11 may be kept permanently closed if it fails to open after several such attempts. If rectifier 3 is also provided with a control device 9, two opportunities for connection will be available per period. The invention may be applied to a bridge of mercury arc rectifiers if a further by-pass rectifier is included which would be employed only for disconnection of the bridge. Fig. 4 shows a simplified triggering circuit for one of the thyristors 14 forming part of one of the controlled rectifiers 1 ... 6 and utilizes a RC circuit 17, 18 connected across part of the voltage divider 15, 16 used to equalize voltage across the series-connected thyristors. Thyristor 14 is triggered by triggering in auxiliary thyristor 19.
Patent GB-640819-A (GB)
Title: Improvements in or relating to windows
IPC: E06B3/40
Filed: 1948-09-07
Abstract: 640,819. Windows. MANWARING, A. H. D. Sept. 7, 1948, No. 23514. [Class 20 (iii)] A window comprises two adjacent elements 12, 13 each rotatable about an intermediate axis parallel to one of the side frame members, the adjacent edges of the elements, when the window is closed, abutting in a plane at an acute angle to that of the glass, and the outer edges of the elements abutting the stationary frame in planes parallel to the first abutment plane, some or all of the abutment planes having grooves 20-23 serving as channels leading to rain water outlets. Weatherproofing material may be let into the abutting surfaces on the inside of the drain holes.
Patent GB-171460-A (GB)
Title: Improvements in or relating to hat retaining devices
IPC: A42B7/00
Filed: 1920-08-12
Abstract: 171,460. Mobley, J. H., Gilbert, H. H., and Goldston, C. D. Aug. 12, 1920. Hats, securing to head.-For retaining a hat on the wearer's head, a band made up of alternate strips of equal length of celluloid Band elastic " A sewn together is provided inside the hat adjacent to the brim. Four strips of each material make up the band. Celluloid strips are arranged at the front and rear, and these strips are each secured to the hat by a screw-threaded pin C having a washer and threaded knob outside the hat. Holes G allow for sewing as additional securing- means. Friction slides F are provided on an elastic strip at each side, to allow adjustment. The side-portions of the band are free from the hat and engage the sides of the wearer's head.
Patent GB-644697-A (GB)
Title: An improved adjustable stop for use in card index drawers or trays and for analogouspurposes
IPC: B42F17/02
Filed: 1948-09-08
Abstract: 644,697. Card index followers. COLANGULAR, Ltd., and ROSS, H. H. Sept. 8, 1948, No. 23649. [Class 146 (i)] A card-index locking follower comprises a length of wire shaped so as to have ends 3 which abut against the inner sides and base of the drawer or tray, and which are bridged by a part 1 to abut against the cards, which part has a deformation 2 forming a pair of fingerpieces 4 for manipulation of the follower. The deformation 2 is inverted U-shaped with the top lying in the same plane as the bridge part 1 to engage the cards. The ends 3 are U-shaped and set so that the outer limbs 31 are further apart than the limbs 3a. Rubber tubing or the like covering 6 to the ends 3 provides additional grip. In a modification the ends 31 are extended inwardly to form a second bridge which may abut a second group of cards in the drawer.
Patent GB-1017595-A (GB)
Title: Improvements in or relating to radiometric analysis techniques
Inventor: RHODES JOHN RATHBONE
IPC: A63C9/00
Filed: 1962-06-20
Abstract: 1,017,595. X-ray absorption analysis. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 10, 1963 [June 20, 1962], No. 23704/62. Heading G1A. The concentration of a required element in a sample is determined by measuring two absorption coefficients of the sample using two substantially monochromatic energies of X-rays selected to be close to the top and bottom respectively of an absorption edge of the required element. The quantity of zirconium present in a solution containing zirconium, hafnium and sulphuric acid is determined using a Promethium-147/Aluminium bremsstrahlung source 1 in a gold source holder 2 the base of which is thick enough to absorb all the radiation emitted from the bottom of the source. The radiation from the source 1 strikes one of two targets 3 which are of molybdenum and ruthenium. The characteristic fluorescent X-rays from the target 3 pass through a sample holder 4, through a differential filter 5 and a beryllium window 6 to a scintillation counter 7 having a sodium iodide crystal and a photomultiplier. The targets 3 which are used separately are chosen so as to have K radiations differing by less than 5% from the K absorption edge of the zirconium. The differential comprises a pair of filters used sequentially with each target. In each case one of the filters is formed of the required element, i.e. zirconium and the other is so chosen as to define a pass band of energies which includes the characteristic K X-rays of the targets. In the determination, counts are made using firstly the molybdenum target with strontium and zirconium filters and then the counts are repeated using the ruthenium target with zirconium and molydenum filters. Continuous measurement of a solution of zirconium flowing in a pipe may be achieved by providing a first and second bremsstrahlung sources each associated with a different target and two filters with each target each filter being associated with a separate counter. Electronic equipment may also be provided for the continuous measurement to give a continuous display of the concentration of the zirconium. The bremsstrahlung source may be replaced by other radioactive sources e.g. American-241 or Cadmium-109, provided they have an energy component higher than the absorption edges of the target elements. If the composition of a sample is known its thickness may be determined.
Patent GB-1089590-A (GB)
Title: Organosilicon materials
IPC: C07F7/18
Filed: 1966-05-26
Abstract: Novel isocyanatosilanes having the formula <FORM:1089590/C3/1> where Y is acyloxy, ketoximato, or halogen, R is a monovalent saturated hydrocarbon or halogenated hydrocarbon radical or a monovalent aryl or halogenated aryl radical, Q is a divalent cycloalkane radical or CR12CHR1(R11)b, R1 is hydrogen or an alkyl radical, R11 is a divalent radical R111 or R111OR111 where R111 is a divalent saturated hydrocarbon or halogenated hydrocarbon radical or aryl or halogenated aryl radical, a is 0, 1 or 2 and b is is 0 or 1, are prepared by adding a silicon hydride having formula <FORM:1089590/C3/2> to an olefinically unsaturated isocyanate having formula Q1NCO in the presence of a platinum catalyst.  Q1 is CR12=CR1(R11)b\t or a cycloalkenyl radical and R1, R11, R111, a and b are as above. R may be aryl or halogenated aryl aralkyl, alkyl, haloalkyl or cycloalkyl. R11 may be alkylene or haloalkylene, arylene or haloarylene, alkyleneoxyalkylene, alkyleneoxyarylene or aryleneoxyarylene.  In the examples methyldiacetoxy - (3 - isocyanatopropyl)silane, dimethyl acetoxy - (3 - isocyanatopropyl)silane, bis-(ethyl methyl ketoximato) methyl-3-isocyanatopropylsilane, (ethyl methyl ketoximato) - dimethyl - 3 - isocyanatopropylsilane, methyl dichloro (3-isocyanatopropyl)silane, dimethyl chloro-3-isocyanatopropyl)silane, 4-[31 - dichloromethyl silyl)propoxy] phenyl isocyanate and 4-[21-(acetoxydimethyl silyl)ethyl]-phenyl isocyanate are prepared.  Methyl di-acetoxy-(3-isocyanatopropyl)silane may be polymerized alone or it may be used as a curing agent for polypropylene glycol.ALSO:A stiff fibrous material is obtained by dipping pieces of cotton print cloth into a solution of methyldiacetoxy-(3-isocyanto-propyl) silane and dibutyltindilaurate in toluene, drying the treated cloth, immersing it in water and redrying.  Isocyanatosilanes of the formula: <FORM:1089590/D1-D2/1> where Y is an acyloxy, ketoximato or halogen radical, Q is CH\sv2CHR\sv(R\yF)b or a divalent cycloalkane radical, R is a monovalent saturated hydrocarbon or halohydrocarbon, aryl or haloaryl radical, R\sv is hydrogen or an alkyl radical, R\yF is R\yG or R\yGOR\yG radical where R\yG is a divalent saturated hydrocarbon or halohydro carbon, aryl or haloaryl radical, a is 0, 1 or 2 and b is 0 or 1, may be used as fabric stiffeners. p
Patent GB-751920-A (GB)
Title: Lubricator, especially for steam engines, compressors, pumps, or the like
IPC: F01B31/10
Filed: 1954-08-16
Abstract: 751,920. Lubricating. WANTENAAR, A. J. Aug. 16, 1954, No. 23744/54. Class 12 (3). A lubricator comprises a container 1 for lubricant, in which is provided a hollow cylinder 2 fitted at one end with an adjustable valve 4 which can be opened by operation of a rod 3. Lubricant is supplied to the container through opening 7. Steam or air under pressure is supplied to the container 1 by way of an inlet pipe 17, a pipe 19 and a ball valve 25, and is also supplied by way of a pipe 10 to a chamber 11 surrounding the lower section of the rod 3 whereby the discharge of lubricant to bearing points is facilitated. The rod 3 is reciprocated by movement of a cam-like member 9 formed with raised portions on the upper surface. The member 9 may be reciprocated manually or mechanically.
Patent GB-1498320-A (GB)
Title: Fan drive assemblies
IPC: F16D35/02
Filed: 1976-06-09
Abstract: 1498320 Viscous couplings WALLACE MURRAY CORP 9 June 1976 [20 June 1975] 23783/76 Heading F2W In a viscous fluid drive assembly 10 in which a partition 36 divides a housing 12 into a drive chamber 22 and a reservoir chamber 20 and in which a rotor 18 fixed to a drive shaft 16 is arranged within the drive chamber 22, a thermally responsive device 30 is arranged to curtail flow of fluid from the reservoir chamber 20 through an aperture 40 in the partition 36 to the drive chamber 22 when a predetermined temperature is exceeded but to continue to allow some fluid to reach the right-hand surface of the rotor 18 through a transfer tube 42 and thereby prevent overheating as such fluid returns to the reservoir via passageways 23R and 28. As shown, when the aperture 40 is closed due to the action of the temperature responsive device 30, viscous fluid in reservoir 20 passes through the tube 42 in the partition 36, is guided by a ring-shaped element (44) fixed to the rotor 18 to pass through holes (50) in the rotor to the right-hand surface thereof. In an alternative embodiment (Figs. 4 to 6, not shown) vanes (62) arranged in apertures (60) of the rotor guide viscous fluid from the passageway 42 to the right-hand surface of the rotor 18. The assembly may be used in the cooling system of an I.C. engine.
Patent GB-1073532-A (GB)
Title: Method for controlling the time of transmission of guiding signals to a remote-controlled flying body
IPC: F41G7/30
Filed: 1964-06-09
Abstract: 1,073,532. Missile guidance. ELTRO G.m.b.H. June 9, 1964 [July 19, 1963], No. 23832/64. Heading F3A. In the transmission of command instructions for guiding a roll-stabilized missile equipped with control surfaces from a base position, the instructions, corresponding to coordinates of deviation of the projectile from a required axis, are measured in the image field of an I.R. goniometer. The instructions are recorded by a fixed recording head 2 on a carrier 1 of a magnetic recording device. The carrier revolves at the speed of a modulation disc of the goniometer. The stored instructions are scanned by a scanning head 3 which rotates at the same relative velocity as regards amount and direction, as the rolling movement of the projectile (Fig. 2, not shown), and are then transmitted to the missile which is thereby commanded at the right instants.
Patent GB-1204010-A (GB)
Title: Open-loop fluidic analog accelerometer
IPC: G01P15/03
Filed: 1968-05-20
Abstract: 1,204,010. Fluid analog systems. GENERAL  ELECTRIC CO. May 20, 1968 [May 29, 1967], No.23869/68. Heading G3H. [Also in Division G1] An open-loop fluidic analog-type accelerometer without any close-fitting, sliding-motion parts comprises an inertial mass 16 resiliently mounted for sensing a selected component of acceleration and generating from a steady pressurized fluid signal a differential analog-type pressurized fluid signal proportional to the acceleration and a communicating analog-type fluid amplifier for amplifying the signal. A sensor 10, Fig. 1, for sensing acceleration in a direction 19 of a body by which it is carried, comprises a frame 18 supporting an end 12 of a resiliently flexible member 11 carrying an inertial mass 16 at its other end 13. Pressurized fluid from a source Ps is supplied through a central passage 14 to issue as a jet from a nozzle 15 at the end 13. A part 20 of the frame 18 contains two fluid receivers 21, 22 equispaced about a null position of the mass 16 in a line parallel to the direction 19. For small displacement of the mass 16 due to acceleration there is a linear relationship between the acceleration and displacement. The differential pressure signal sensed by the recievers 21, 22 is amplified by one or more stages of analogtype fluid amplifiers 27 Fig. 2 after filtering by a fluid resistor R and capacitor C for compressible fluids or an inductor-resistor circuit for incompressible fluids. To constrain the mass 16 to movement only in the required direction 19 the member 11 is formed with fins 17 or the passage 14 is given a crosssection elongated transversely in the direction 19. The receivers 21, 22 may be rectangular and a centre vent passage may be provided. To sense the components of an acceleration in two mutually perpendicular directions, two degrees of freedom of movement are allowed and two pairs of receivers are provided connected to two amplifying systems, Fig.3a (not shown) and alternative arrangements of the receivers are described with reference to Figs. 3b and 3c (not shown). A sensor for angular acceleration comprises a cylindrical mass 16 for rotation about its axis by two torsionally resilient members 40, 41. One member 41 Fig.4a (not shown) may be hollow and communicate with a partly axial, partly radial passage from which a jet issues when the member 41 receives pressurized fluid to be received and amplified as for linear acceleration. Alternatively the mass 16 may carry a vane 49, Fig.4b projecting between two nozzles 54, 55 which receive fluid under pressure through flow restrictors 53. The back pressures developed in passages 23, 24, when angular acceleration occurs are amplified and their difference is proportional to the angular acceleration. The accelerometer may be used to sense single or double axis linear vibrations or torsional vibrations by monitoring a central vent symmetrically placed with respect to the other receivers e.g. 21, 22.
Patent GB-856471-A (GB)
Title: Self-sealing coupling
IPC: F16L29/04
Filed: 1958-07-24
Abstract: 856,471. Pipe couplings. AEROQUIP CORPORATION. July 24, 1958 [July 31, 1957], No. 23897/58. Class 99(1). In a self-sealing coupling for assembly in a fluid conduit system and comprising axially alignable hollow body parts 34, 44 which are detachably connected to their opposed outer ends with relative axial movement to effect opening and closing of the coupling, the part 34 being provided at its outer end with annular sealing seats 62, 76 self-sealing valve assemblies 12, 18 are inserted as self-contained units in the parts 34, 44 through the inner ends thereof, the outer ends of the valve assemblies being adapted to abut each other upon connection and relative movement of the parts 34, 44 to effect relative movement between the components of the assemblies. The outer end of the valve assembly 12 is provided with an elastomer face 23 which forms a seal with the seat 62 in the part 34 when the parts 34, 44 are separated, whilst the valve assembly 18 is provided with an elastomer face 58 which sealingly engages the seat 76 in the part 34 where the parts 34, 44 are connected. Fluid connector adaptors 20 are screwed into the inner ends of the parts 34, 44 and are formed with retaining shoulders 72, 74 for location of the valve assemblies 18, 14 within the parts 44, 34. As shown, the valve assembly 12 comprises a spring-loaded valve 22 and a three-legged retainer 24 slidably mounted on the valve stem for engagement by the adaptor 20. The valve assembly 18 consists of a valve 50 having a similar retainer 54 riveted to the stem thereof, the latter having slidably mounted thereon a spring-loaded sleeve 52 which is provided with the elastomer face 58 which engages a flange 60 on the valve 50 when the coupling is disconnected. Coupling is effected by rotating a nut 42 on the part 44 to engage external threads 38 on the part 34 whereby the valve 50 displaces the valve 22 from the seat 76 and the nose 78 of the part 44 bears against a sealing ring 41 located in a groove in the part 34, whilst the spring 56 is compressed by the sleeve 52 the movement of which is arrested by the seat 62. U.S.A. Specification 2,208,286 is referred to.
Patent GB-242927-A (GB)
Title: An improved toy
IPC: A63H23/10
Filed: 1925-09-25
Abstract: 242,927. Muller, F. H., and Greiner, E. E., (trading as Greiner & Co., G.), (Bayerische Celluloid Warenfabrik vorm. A. Wacker Akt. Ges.). Sept. 25, 1925. Floating toys; balls.- Relates to a toy of the kind in which model fish or other objects float or are submerged in a liquid con. tained in a hollow transparent container, and as shown, comprises a transparent ball a containing a weighted member d, which is movable upon the inner surface of the ball and to which model fish b are connected by means of wires c.
Patent GB-360859-A (GB)
Title: Improvements in or relating to apparatus for feeding or delivering sheets
IPC: B65H3/02
Filed: 1930-08-11
Abstract: 360,859. Feeding sheets. MACDONALD, H., 28, Victoria Street, and FULTON, J., 21, Queen Anne's Grove, Bedford Park, both in London. Aug. 11, 1930, No. 23987. [Class 100 (i).] Sheet-separators; pile supports.-For feeding sheets to printing, punching, pressing, or like machines, the sheets are stacked in a tray A, Fig. 1, or H, Fig. 2, having upturned edges A<1>, H<1>, and the top sheets of the pile are drawn against and over the edges A<1>, H<1>, by means of reciprocating wipers C or K preferably fitted with a resilient tip C<2> or K2. The relay A, Fig 1, is fitted with lugs A<2> to hold the stack, and the body of the tray is inclined at angle of 45‹ and the edge A<1> is vertical. The wiper C is pivoted to a crosshead B reciprocated on guides B<1> by means of a crank F, and the wiper is controlled by means of a spring D and roller projections C<2> which engage cam surfaces E which keep the wiper clear of the stack as it moves towards the pile during the downward motion of the crosshead. The mechanism is set to cause the pad C<2> to engage the middle of the top sheet, and as the crosshead moves upwards, the pad C<2> flexes the top sheet against the fence A<1> and the spring D causes the finger to follow the path of the sheet over the fence A<1>. The separated sheet falls into a shoot or is taken up by a conveyer mechanism (not shown). The wiper K, Fig. 2, is pivoted to an oscillating arm L operated by a crank 0, and the motion of the wiper K is controlled by a spring M, rollers K<3>, and cam N. The pivot K<1> of the wiper K moves substantially parallel to the ledge H<1> while the top sheet is being moved over the ledge H<1> on to the conveyer band J. A spring buffer stop P assists to bring the rollers K<3> on to the upper side of the cam N during the downward motion of the arm L.
Patent GB-599460-A (GB)
Title: Laminated wrapping and bagging sheet material
IPC: B65D65/40
Filed: 1945-09-17
Abstract: 599,460. Compound sheet materials. DEARBORN CHEMICAL CO. Sept. 17, 1945, No. 24001. Convention date, Jan. 17. [Class 140] A laminated wrapping and bagging sheet material comprises a flexible sheet 5 made from a cellulose derivative, a vinyl resin or casein, a protective coating on both sides of the sheet, a paper sheet 8 adhered to the coating 6 on one side of the plastic sheet and a protective coating 9 on the paper sheet providing one surface of the material, and a water and moisture resistant fibrous sheet 11 adhered to the coating 7 on the other side of the plastic sheet, this providing the surface of the other side of the material. The coatings 6, 7 and 9 are of a plastic, pressure-sensitive, adhesive nature, made with a petrolatum base which may be thinned before application.by heat or by solvents such as kerosene, naphtha or oleum spirits. Embedded in the coating 9 may be a reinforcing material 10 of fine thread cotton fabric such as " tobacco " cloth. This produces spaced depressed and raised surface portions. The other surface 11 may be a sheet of waterproofed fibrous material, such as dry waxed kraft paper.
Patent GB-811875-A (GB)
Title: Improvements in or relating to cold-hammering devices for crankshafts
IPC: C21D7/04
Filed: 1956-08-03
Abstract: 811,875. Hammering crank-shafts; altering physical structure. REGIE NATIONALE DES USINES RENAULT. Aug. 3, 1956 [Aug. 4, 1955; Feb. 15, 1956], No. 24023/56. Class 83 (4). Apparatus for increasing by cold hammering the fatigue resistance at the junction fillets 3 of the crank-pins 2 of engine crank-shafts 1, comprises a vibratory tool 14 working in a guide 5 placed astride the crank-pin 2, the guide or the crank-pin being rotated about the axis of the latter during the operation of the tool. The tool is preferably operated by a pneumatic hammer 15. The guide comprises two limbs 5, 51 connected together by a bridge having the covering of resilient material 9 with a sloping surface for guiding the tool. A plurality of hammer tools may be arranged to operate simultaneously in a number of fillets of a crankshaft mounted in a lathe. In another embodiment, Fig. 11, a pair of tools 32a, 32b mounted in a body 25, 41 of resilient material are actuated simultaneously for hammering both fillets 28, 29 of the crank-pin 21, by a rod 31 slidable in a guide 30 mounted astride the crank-pin. The rod 31 is actuated by a pneumatic hammer. Examples are given of the fatigue limits of treated and untreated crankshafts.