baber/WOPTO huggingface dataset:
Patent GB-100318-A (GB)
Title: Electrolytic Refining or Extracting Process.
IPC: C25C7/06
Filed: 1916-04-19
Abstract: 100,318. United States Metals Refining Co., (Assignees of Pyne, F. R., and Green, H. M.). April 20, 1915, [Convention date]. Metals, obtaining; electrolytes, treating non- chemically.-In the extraction or refining of copper or other metals, with soluble or insoluble anodes, the electrolyte is allowed to stratify in the electrolytic vat, and layers rich in different constituents are led off separately, for instance by pipes E, F<1>, F, fresh electrolyte entering continuously through a pipe B. The concentrations in the strata are controlled by regulating the outflow at different levels. That portion of the electrolyte which is rich in the primary constituent (in the case of copper the bottom layer) may be returned to the electrolytic vat, or to other vats working under similar or more advantageous conditions. It may be led off from the primary vat in fractions of different concentrations. The portion or portions rich in secondary metals may be electrolyzed with insoluble anodes to remove completely the small amount of primary metal, the usual intermediate electrolyses for recovering most of this metal being unnecessary. The secondary metals can then be separated. Slime may be withdrawn from the primary electrolytic vat by a plugged hole in the bottom.
Patent GB-1127811-A (GB)
Title: Improvements in or relating to sight gauges
Inventor: COLLEY ROWAN HERBERT
IPC: G01F23/292
Filed: 1966-02-10
Abstract: 1,127,811. Liquid level indication. ROLLS ROYCE Ltd. Feb. 6, 1967 [Feb. 10, 1966], No. 5793/66. Heading G1H. In a sight a triangular bore 12, in a transparent plastic block 10, in which the height of a liquid is to be indicated has surfaces 30, 32 so disposed that when viewed on the direction A light will pass directly from the liquid filled portion of bore 10 in a direction perpendicular to the viewing surface 20 but in the empty portion of bore 12 total internal reflection occurs and light passing towards the surfaces 30, 32 in a direction perpendicular to the surfaces is reflected off such surfaces. Marked plates 26, 28 34, reflect letters, numerals, signs or symbols on to surfaces 30, 32 of the portion of the bore 12 not containing liquid. Different shaped bores 12 are disclosed.
Patent GB-606805-A (GB)
Title: Subscriber's calling device for loud speaking telephone systems
IPC: H04M9/00
Filed: 1945-03-08
Abstract: 606,805. Loud-speaking telephone systems. AUTOPHON AKT.-GES. March 8, 1945, No. 5804. Convention date, Nov. 6, 1942. [Class 40 (iv)] In a loud-speaking telephone system, a substation is provided with switching means by which transmission in one or both directions may be blocked although a voice frequency calling signal is always permitted to pass, so that a calling subscriber may be prevented from over-hearing sounds in the room of the called subscriber. The transducer EW is connected by switches u1, u2 (controlled by means unspecified) to the amplifier V either for use as a transmitter or as a receiver. Opening of switch SH1 disconnects outgoing speech currents. Opening of switch SH2 unbalances the differential relay X at the exchange, thereby preventing speech signals in either direction. Calling tone is applied by relay R (operated by means unspecified) which also parallels the two coils of relay X which is thereby balanced and so released, so that the tone is not only sent to the called subscriber but also to the calling subscriber for monitoring purposes. Switches SH1, SH2 may be independent or operated by the same lever, but in the latter case a removable metal link is provided across SH2.
Patent GB-1236483-A (GB)
Title: Improvements to signal recording and/or playback apparatus
Inventor: WILSON NORMAN
IPC: G11B5/48
Filed: 1969-02-04
Abstract: 1,236,483. Recording &c. apparatus. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 19 Dec., 1969 [4 Feb., 1969], No. 5864/69. Heading G5R. [Also in Divisions H3-H5] A transducer 2 is stepped across a record 1 for track-changing by means of a uniselector. The uniselector receives one or a combination of signals at its input terminals and is thereby driven to the addressed position at which it stops. The follower 5 is adjustable via knob 6. The device may be incorporated in a telephone network to reproduce an appropriate one of a plurality of recordings relating to an industrial plant in response to a telephone enquiry. The device may handle telephone dialling pulses on a magnetic tape loop enabling the device to call outstations, check by coded information received that the correct telephone link has been established, receive and record data received from the outstation, e.g. indications of the state of apparatus, then automatically select and dial a further outstation for similar procedure.
Patent GB-1028129-A (GB)
Title: Improvements in and relating to conveying devices
Inventor: BECK WILFRED
IPC: B62B3/00
Filed: 1965-02-10
Abstract: 1,028,129. Load handling pallets. BAMBERGERS PALLETS & CASES Ltd. Feb. 10, 1965, No. 5880/65. Heading B8H. [Also in Division B7] The end walls of a pallet have outwardly directed lugs 18 which engage in apertures in channels 3 to retain the end walls in position. They are disengaged by sliding the link 22 upwardly to allow the parts A and B to be sprung together.
Patent GB-407185-A (GB)
Title: Improvements in or relating to jig saw puzzles
IPC: A63F9/10
Filed: 1933-02-28
Abstract: 407,185. Jig-saw puzzles. CLARKE, E. EAGLE-, Broomfield, Filey, Yorkshire, and CHAD VALLEY CO., Ltd., Harborne, Birming- ham. Feb. 28, 1933, No. 6026. [Class 132 (iii).] A jig-saw puzzle is constructed so that the majority or all of the component pieces 3, 4, 5, 6 are in themselves complete representations of an object such as an animal, bird, fish, human being or quasi - human being &c., the solver of the puzzle being guided by the shape of the pieces alone and not by the surface design. Outer pieces 7 with a plain surface and conforming to the adjacent puzzle pieces may form a margin of rectangular or continuously curved edge and may be formed as interlocking pieces or as a single frame, or the frame may be arranged as a tray.
Patent GB-1524934-A (GB)
Title: Delivery box
IPC: A44B19/34
Filed: 1977-02-14
Abstract: 1524934 Sliding clasp fasteners YOSHIDA KOGYO KK 14 Feb 1977 [18 Feb 1976 4 June 1976] 6041/77 Heading E2S [Also in Division B8] A sliding clasp fastener for securing the closing flaps of a carton has its stringers secured to the flaps by adhesive or by stitching and the stringer tapes may be elastic to draw the closed flaps together. In a modification, Fig. 4, the fastener is designed so that the elements E are coupled and uncoupled in a direction vertical to the plane of the fastener. The pull tab S' 3  is passed over a projecting lug S' 1  when the carton is closed and is locked by a pin received in a hole S' 2 .
Patent GB-1002711-A (GB)
Title: An electrical display arrangement
Inventor: FLETCHER JOHN FORSYTH
IPC: H02B15/04
Filed: 1964-02-13
Abstract: 1,002,711. Electrical display arrangements. STANDARD TELEPHONES & CABLES Ltd. Feb. 13,1964, No. 6103/64. Drawings to Specification. Heading G1Q. An electrical display arrangement or mimic diagram comprises a display panel having a tiled face, the tiles being interchangeably and detachably mounted on the panel, and at least one electrical measuring instrument removably secured to the panel in place of one or more tiles, the movement of the instrument being aligned with the position of one of the tiles which it replaces and the front face of the instrument being the same shape as the tile or tiles which it replaces. The movement may be enclosed in a housing which protrudes beyond the rear face of the panel, and a resilient grommet may be fitted tightly over the protruding portion to abut the panel and retain the instrument in position.
Patent GB-479565-A (GB)
Title: Improvements relating to the handle bars of cycles and the like
IPC: B62K21/16
Filed: 1937-07-26
Abstract: 479,565. Handle-bars. CROKER, T. J. July 26, 1937, No. 6164. [Class 136 (iii)] Handle-bars for cycles and like vehicles are provided with a member (e.g. an extension) embodying a support for the forearm to enable the latter to be used, in conjunction with the handle-bar grip, as a lever, and the upper arm as a strut, in order to support part of the weight of the body, whereby perineal pressure and fatigue of the back muscles are reduced. In the form shown in Fig. 1, the handle-bar has an extension m on which is mounted a support and fulcrum m<1> for the forearm, the support being pivoted at r, and its mounting being adjustably clamped by a screw m<2>. In the form shown in Fig. 2, the supporting member is adapted to swing transversely to clear the rider's body when turning, mounting, or dismounting, and comprises a forearm support m<1> on an arm m<3> pivoted, for vertical adjustment, to a yoke m<4>, which is pivoted at m<6> for transverse movement relatively to a lug m<7> formed on or attached to the handlebar. In other forms, a lug such as m<7> forms part of a member which is adapted to be clamped over or within the end of the handle-bar and which may carry the hand-grip. In other modifications, the arm carrying the forearm support is pivotally mounted on the handlebar ,or its stem, and is provided with another arm carrying the hand-grip.
Patent GB-870405-A (GB)
Title: Improvements in and relating to isolating switches
Inventor: DEBUIT LOUIS
IPC: H01H31/34
Filed: 1959-02-23
Abstract: 870,405. Air-break isolating switches. ETABLISSEMENTS MERLIN & GERIN. Feb. 23, 1959, No. 6181/59. Addition to 832,893. Class 38 (5). The isolating switch of the parent Specification is provided with a movable contact in the form of jaws which, towards the end of the closing movement of the switch arm, are caused to approach each other so as to grip an overhead conductor. The jaws 20, 21 are pivoted on the free end 6 of the upper member 2 of the switch arm and are connected by links 26, 27 to one end of a spring-biased rod 9. The other end of the rod 9 carries a roller 30 which rolls on an inclined face 31 of the lower member 1. This occurs as the members 1, 2 approach their vertical position and causes the movement of the rod 9 relative to the member 2. The resulting pivoting of the links 26, 27 causes the jaws 20, 21 to grip the overhead conductor.
Patent GB-569527-A (GB)
Title: Improvements in or relating to the manufacture of polymers of ethylene
IPC: C08F10/00
Filed: 1943-04-19
Abstract: Polythenes are prepared by subjecting oxygen-free ethylene (containing less than 1000 part per million of oxygen) to elevated temperature and pressure in the presence of a normally liquid non - polymerizable organic medium and an organo-lithium compound. The temperature may range from 25 DEG  to 350 DEG  C., and the preferred range of pressure is 20-1500 atmospheres.  The solvent medium is generally a saturated aliphatic or aromatic hydrocarbon such as benzene, iso-octane, toluene or petroleum ether, but diethyl ether may be used in some cases.  While any organo-lithium compound may be used, the preferred classes are the alkyl-lithiums and the aryl-lithiums, such as methyl-lithium, n-butyl-lithium, isoamyl-lithium, octyl-lithium, dodecyl-lithium, phenyl-lithium and benzyl - lithium.  Specifications 471,590, 536,102 and 8070/40 (as open to inspection under Sect. 91) are referred to.
Patent GB-590643-A (GB)
Title: Improvements in fibro-cement product
IPC: C04B28/04
Filed: 1944-04-05
Abstract: A resinous substance, such as that known under the Registered Trade Mark "Vinsol," for use in making fibro-cement products (see Group V) is prepared from ground pinewood by extracting with a coal tar hydrocarbon solvent, e.g., benzol or toluol, removing the volatile constituents and treating the residue with a petroleum hydrocarbon solvent, such as gasoline, to dissolve out the resin.  The pine wood may be initially treated with live steam to remove the volatile constituents, including turpentine and pine oil.ALSO:A fibro-cement product formed by extrusion, particularly pressure pipe, is composed of Portland cement and asbestos fibres, with or without silica, and .01-.05, preferably .02-.04, per cent. of the dry weight of cement, of a petroleum hydrocarbon insoluble fraction of pine wood resin, such as that known under the Registered Trade Mark "Vinsol" (see Group III).  The resinous substance may be incorporated in solid form during the grinding of the cement or, after saponification with caustic soda, added in liquid form to the water used in making the cement mixture.  The pipe &c. may be set by autoclaving, preferably at steam pressures up to 120 lbs. sq. in. and temperatures up to 170 DEG C., or in water without autoclaving.  In the latter case, silica may be omitted.
Patent GB-1141706-A (GB)
Title: Radiation resistant insulation
IPC: H01B7/28
Filed: 1966-02-14
Abstract: 1,141,706. Insulating conductors. UNITED STATES ATOMIC ENERGY COMMISSION. 14 Feb., 1966 [10 March, 1965], No. 6356/66. Heading B5A. [Also in Division B2] A method for electrically insulating metallic electrical conductors with an electrical insulation resistant to mechanical stress and nuclear radiation, comprises forming a composition from a thermosetting organic resin which has been heated to reduce its viscosity, a curing catalyst, an electrically non-conducting particulate inorganic filler, a wetting agent and a thixotropic material; covering the conductor with a first layer of a non-conductive inorganic fibre fabric, warming the covered conductor to the temperature of a composition, placing the covered conductor within a mould having movable side walls, impregnating the fibre fabric with the composition whilst maintaining the mould under vacuum, then applying pressure to the impregnated fabric by means of the movable side walls and pre-curing the impregnated fabric while under pressure; removing the conductor from the mould, applying a second layer of a non-conductive inorganic fibre fabric to the covered conductor, impregnating the second layer of fabric and the vacuum with a similar composition to that above and then post-curing both thermosetting organic resins. The organic filler may be aluminium oxide, ground glass magnesium oxide, zircon, zirconia or silica, having a grain size of 10-30 microns. Thixotropic material may be present in proportion 0À5-1À5 parts by weight of the composition and a wetting agent in proportion of 1-2 parts by weight of said composition. The fibre fabric may be of glass fibres and the second such fibre may be mica loaded. The thermosetting resin may be an epoxy resin, a polyester resin or a silicone resin.
Patent GB-341759-A (GB)
Title: Improvements in pumps for supplying liquid fuel to internal combustion engines, applicable also to supplying fluid for other purposes
IPC: F02M37/04
Filed: 1930-02-26
Abstract: 341,759. Engine valve gear. DODSON, E., 66, Lewin Road, Streatham, London. Feb. 26, 1930, No. 6392. [Class 122 (ii).] A fluid-operated pump for liquid or atomized fuel &c. comprises two pistons 12, 14 connected by a rod 43 and working in cylinders 41, 42 on opposite sides of a diaphragm 45, carrying fuel non-return inlet and outlet valves 47, 51 for each cylinder. Ports 48, 50 connect the valves with the cylinders. The outer ends of the pistons are connected alternately to fluid pressure and exhaust by valves arranged at one end of the pump and operated by a toggle mechanism. Pressure fluid passes through a port in the member 3 to a chamber 6 and thence to the piston 12 or to the piston 14 through a passage 13 in the cylinder wall according to the position of the valve 19. Exhaust fluid is controlled by a valve member 23 in similar manner. The valves are connected by a link 26 to an arm 28 pivoted at 30 and connected by a spring 31 and link to another arm 29 also pivoted at 30. Toward the end of the stroke, the rod 37 is reciprocated and causes the toggle to be thrown over deadcentre thus operating the valves and reversing the flow of fluid. Specification 341,758 is referred to.
Patent GB-1381709-A (GB)
Title: Sliding caliper disc brakes
IPC: F16D55/00
Filed: 1971-03-09
Abstract: 1381709 Sliding-caliper disc brakes GIRLING Ltd 3 March 1972 [9 March 1971] 6408/71 Heading F2E A sliding caliper disc brake comprises a rotaable disc, a torque member 10 arranged to be fixed to a stationary part of a vehicle, and a caliper member 18 slidable relative to the torque plate member 10 for moving friction pads disposed on opposite sides of the disc into braking engagement therewith. At least one pin assembly is provided for providing the sliding of the caliper of member 18. The pin assembly is formed of at least two parts, a first component of the assembly having a sliding surface slidable in a complementary opening in one of the members and a second component of the assembly releasably clamping the first component against the other of the members, the second component being fastened either to the first component or to the other member and passing with a clearance fit through an oversized opening in either the other member or the first component respectively. In the construction shown the second component comprises a pin 42 having a threaded region 48 and the first component a bush 50 having a complementary screw thread 48. Two assemblies 48, 50 are provided. In a further embodiment (Figs. 5 and 6, not shown) a headed pin passes through a bush which forms the slide for the caliper member and is screwed into a threaded bore in the torque plate member. Alternatively pin slides within a bore of the torque plate and is fastened to the caliper member by means of a clamping screw passing through the caliper member and engaging in a threaded bore in the pin (Figs. 7 to 10, not shown). The pin may be provided with a friction type wear adjuster (Figs. 7, and 8, not shown) on a sealing ring (Fig. 9, not shown). A radial port may connect the inner end of the threaded bore with the outer surface of the pin to facilitate the entry of the clamping screw. The caliper may have two limbs, one on each side of the torque plate. A bush slides in the torque plate and clamping screws, one passing through each limb are screwed into each end of of the bush (Fig. 11, not shown). In a further embodiment (Figs. 12, 13, 14, not shown) a pin is attached to the caliper by a clamping screw, and the pin is provided with a resilient bush providing the sliding surface for the torque plate. In this embodiment the brake may be actuated mechanically as well as by hydraulic means and a wear adjustment device is also provided. The pin extends across the plane of the disc. In a modification (Figs. 15 to 17, not shown) the pin extends in a blind bore which only extends on one side of the disc. The caliper is of unitary construction.
Patent GB-163659-A (GB)
Title: Improvements in or relating to rock-drills
IPC: E21B6/08
Filed: 1920-01-09
Abstract: 163,659. Holman, J. M., and Holman, A. T. Jan. 9, 1920. Percussive drills.-In a percussive rock-drill, the drill 1 is operatively connected, as by a sleeve 3, with a piston device 5 which moves the drill axially, so that the piston and drill are rotatable together, and fluid-operated means are provided to oscillate or rotate the piston 5 about its axis. In one form, the sleeve 3 and piston 5 slide in a fixed casing 4 provided with a port 6 for the admission of the pressure fluid, which passes through ports 7 in the sleeve and then through a port 8 to the hammer piston and through passages 9 in the piston 5. The piston 5 is oscillated by means of a piston 13, which is connected by a rack and pinion 15 or lever or crank to a fluted rod 16 slidably engaging the piston, and is reciprocated by pressure fluid admitted alternately to opposite ends of the cylinder 12 by a valve 20. The valve 20 is reversed by pressure fluid admitted alternately to opposite ends of the valve casing by a disc valve 27 oscillated by a pin 35 carried by the rod 16. The drill may be rotated by interposing a pawl-and-ratchet between the pinion 15 and the rod 16.
Patent GB-801121-A (GB)
Title: Improvements in or relating to apparatus for the switching of electric power circuits
IPC: G05F1/46
Filed: 1955-03-04
Abstract: 801,121. Switching systems; converting. SIEMENS-SCHUCKEETWERKE A.G. March 4, 1955 [March 4, 1954], No. 6523/55. Drawings to Specification. Classes 35, 38 (2) and 38 (4). A controllable semi-conductor, which may be a transistor, but which is preferably one subject to magnetic control, having a maximum to minimum resistance ratio of at least ten to one is used as a load switch in power circuits, this being rendered possible by the provision of means for reducing the energy losses which occur in the semi-conductor whilst it is changing from one resistance condition to the other. One such means is the provision of positive feedback between the power and control circuits, preferably of a degree sufficient to produce a flip-flop resistance characteristic, so that a rapid change-over of condition occurs. Alternatively, static impedances, which are only effective during the switching operation, may be connected with the power circuit to reduce the transition losses in the semi-conductor; thus, the circuit may be arranged to be inductive whilst being closed and capacitive whilst being opened. In the case of alternating current circuits the transition losses may be minimized by suitable phasing between the control means and the load circuit voltage wave. With semiconductors of the magnetic barrier layer type the transition time may be shortened by appropriate steps taken during manufacture of the crystal of the material, or by suitable choice of the geometry of the crystal, its electrodes and the pole pieces of its controlling magnet. To improve cooling, the semi-conductor may be in the form of a number of thin plates, operating in parallel and spaced apart, preferably by heatdissipating members of ferrite. Numerous applications, involving more than the mere switching on, or off, of a power circuit, are described, for instance, the tripping of a circuit breaker and limitation of fault current, the prevention of excessive voltages upon switching an inductive load, the control of motor current during starting, the sequential switching in of a number of resistors in a load circuit to adjust the current flow therein, converting and forcing commutation in dynamo-electric machines. Specifications 719,873, 750,134, 759,047, 770,066, [all in Group XXXVI], and 801,096 are referred to.
Patent GB-1179233-A (GB)
Title: Improvements in or relating to Fluid Operated Roof Supports.
Inventor: BOWER LEWIS ROBERT
IPC: E21D23/00
Filed: 1966-02-15
Abstract: 1,179,233. Advancing mine roof supports. A. G. WILD & CO. Ltd. 19 Jan., 1967 [15 Feb., 1966], No. 6527/66. Heading E1P. The roof canopies of the forward and rearward chocks of an advancing mine roof support frame are interconnected' by roof-engageable spring-steel strips 22, 24, 26 of which the outer members 22, 26 are extended forwardly of the forward chock to form a cantilever extension. The arrangement shown is also provided with a pair of inner floor-engaging strips 30 and a pair of outer floor-engaging strips disposed beneath the strips 22, 26.
Patent GB-565291-A (GB)
Title: Improvements in fluid valves
IPC: F16K15/02
Filed: 1943-04-23
Abstract: 565,291. Valves. PARKER, A. L. April 23, 1943, No. 6549. [Class 135] A check valve 24, Fig. 2, has a skirt 26 extending into an annular chamber 22 with a restricted communication between the chamber and the outlet passage 17 through the clearance between the skirt and a member 21 or through apertures 31a, Fig. 4. The member 21 may be loosely mounted by means of a rib 25 engaging a recess 20. A limited reverse flow may be allowed by drilling a hole 33 in a soft insert 32 in the valve.