baber/WOPTO huggingface dataset:
Patent GB-101118-A (GB)
Title: Improved Means for Operating Plate Valves or the like used in connection with Gas Producers.
IPC: C10J3/24
Filed: 1916-03-21
Abstract: 101,118. Ashworth, A., and Dempster, R. & J. March 21, 1916. Wedgmg or jamming. - Sliding plate valves or the like used in connexion with gas-producers, and of the kind fitted with means for drawing apart the seating-surfaces between which the valves work, are provided with means for operating them from a distance so as to reduce the risk of exposure to the escaping gases. The plate valve a, Figs. 1 and 4, works between seats c on the opposed ends of the gasmain b, which are in two parts capable of being moved longitudinally to a small extent. This movement is effected by means of right and left handed screws e, working in brackets d and actuated by ratchetwheels h, levers h<1>, and links m; the levers h' are mounted loosely on the screws e, motion being transmitted from the levers h<1> to the screws through double-acting spring-pressed pawls h<2>, mounted on the levers and actuated by rods l. The links m are connected to an arrangement of levers o, pivoted to a support p on the valve, and the links l are connected to levers t, pivoted to the levers o. By means of handles o<1>, the levers o may be operated by hand, or they may be operated from a distance by means of a rod s and a crank, the rod s being out of action when the valve is being raised or lowered by means of the usual rod r. The links m may be arranged to be actuated separately and simultaneously. Also, arrangements of chains may be employed instead of the links. For actuating the rod r, from a distance, there may be employed a wheel r', Fig. 5, driven by a leather-covered friction roller u mounted on a shaft driven by reversing clutch mechanism; the roller u, shaft, and clutch mechanism are supported by a frame v, suspended from pivots and capable of being discharged from the wheel r'. The frame v is normally pressed outward by a spring-pressed rod v<2>, so that the roller u is kept out of contact with the wheel r<1>; the rod v<2> is connected to a horizontal pivoted lever v<4>, Fig. 7, the free end of which can be constrained, or moved about a hinged part of the lever, to bear against an upper jaw v' or a lower jaw v<8> of a bracket v<5>. This constraint or movement of the lever v<4> is effected by stops w<3>, w<4> on a vertically-moving rod w, which carries stops w<1>, w<2> engaging with a projection x on the plate valve. By turning a hand-wheel in screw connexion with the rod v<a>, the lever v' can be pushed out of the slot between the jaws v', v<8>, and the stops on rods w can then move the lever v<4> into contact with the jaw w' or w<4>, according to the direction in which the valve is moving.
Patent GB-948989-A (GB)
Title: Photoelectric trend detector
IPC: G01N3/12
Filed: 1962-02-02
Abstract: 948,989. Detecting change in slope of lines. DOW CHEMICAL CO. Feb. 2, 1962 [Feb. 6,1961], No.4173/62. Addition to 930, 566. Heading G15. The pen of a recorder has a light source and a photo-electric cell mounted thereon so that while the pen draws a straight line the beam from the light source falls on the chart slightly to one side of the line and is transmitted to the photo-cell. If the slope of the line changes, the beam falls on the line and the quantity of light transmitted alters, causing the cell to operate an alarm, a cut off switch or a control process. The apparatus is used to detect a change in slope of the pressure volume graph produced by hydrostatic testing apparatus according to the parent Specification. A line may be drawn on the chart positioned to indicate a pre-determined pressure being applied to a given vessel.
Patent GB-1446283-A (GB)
Title: Pressurized water reactors
IPC: G21C7/22
Filed: 1974-01-29
Abstract: 1446283 Controlling nuclear reactors SIEMENS AG 29 Jan 1974 [31 Jan 1973] 04188/74 Heading G6C In the event of a fall in pressure in the primary coolant circuit 2 of a pressurized water reactor 1, vapour in a space 14 within the pressurizer 12 acts to force a fluid neutronabsorber from a container 20 into the circuit 2. Simultaneously, water in a space 13 within the pressurizer 12 is forced into the circuit 2 via line 15 including a throttle 16 whose resistance to such flow is higher than the flow from circuit 2 into pressurizer 12. Line 18 connecting space 14 and container 20 optionally includes valves 19 and a small-bore pressure-equalization duct 23 in parallel therewith. The container 20 contains a heater 26 to heat the neutron-absorber fluid which may be boric acid whose concentration exceeds 10<SP>4</SP> p.p.m. The discharge line 22 or 24 from container 20 to either the primary circuit cold run or the hot run may include valves 21 or rupture discs. A device 10 supplies a lowconcentration boric acid solution to circuit 2 during normal reactor operation.
Patent GB-1108094-A (GB)
Title: Air extraction grille in a vehicle
IPC: F24F13/08
Filed: 1966-01-31
Abstract: 1,108,094. Ventilating vehicles. E. LEX. 31 Jan., 1966 [9 July, 1965], No. 4219/66. Heading F4V. A ventilation grille for extracting hot air from rail vehicles comprises two rows 4 and 6 of ribs of the cross-section shown arranged with the crests of the ribs 4 directed towards the outside of the vehicle so that external air flow along the vehicle causes air to be extracted by induction as shown by the arrows. The grille may be in a side wall of the vehicle with the ribs vertical, or may be at the edge of the roof, Fig. 3a (not shown), with the ribs sloping. In the latter case angle section ribs (9), Fig. 4a (not shown), are included on the vehicle interior side of the ribs 6 with their included angles directed towards the ribs 6. Drainage openings 22 are provided at the lower ends of the ribs 4. Preferred dimensions are disclosed.
Patent GB-304053-A (GB)
Title: Electrolysis of ferrous chloride
IPC: C25C1/06
Filed: 1928-02-10
Abstract: 304,053. Levy, S. I., and Gray, G. W. Feb. 10, 1928. Iron and chlorine, obtaining; diaphragms.-A concentrated solution of ferrous chloride is electrolyzed at a temperature of 90-100‹ C. in a cell comprising a carbon or like anode in a compartment containing a concentrated solution of chloride of sodium, calcium, magnesium, or other metal or radicle which only forms one chloride; the ferrous chloride solution flows through the cell at such a rate that the issuing spent liquor contains 20 per cent Fe Cl2. Iron is deposited on the cathode. The anode compartment is provided with an exit pipe for chlorine; water vapour passing off with the chlorine is condensed and returned. The spent liquor is used to dissolve further quantities of ferrous chloride. A current density of 10-25 amps per sq. ft. at 2.3-3.0 volts is employed. The anode compartment may be cvlindrical or formed bv a wall across the cell. It may be formed by moulding from china clay paste without addition of soluble, fluxing or glazing material, drying slowly and firing.
Patent GB-636741-A (GB)
Title: Improvements in or relating to light-absorbing glass
IPC: C03C3/087
Filed: 1947-02-14
Abstract: 636,741. Colour filters. ABBEY, A. (American Optical Co.). Feb. 14, 1947, No. 4331. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 27, 1948.] Drawings to Specification. [Class 97 (i)] [Also in Group XXIII] An iron and selenium containing glass suitable for lenses for sunglasses, filters, welding screens, &c. has low transmission in both the u.v. and i.r. regions and a maximum visual transmission in the yellow, orange and red, imparting a warm rose smoke shade to objects viewed therethrough, the total energy transmission (for a 2 mm. thickness) lying between 7 per cent and 38 per cent, and the visual transmission between 15 per cent and 56 per cent. Examples are given showing percentage transmissions within the following ranges: at 3800Š 0-23, at 4100Š 6-40, at 4400Š 5-37, at 6300Š 18-56, at 7500Š 10-46, and decreasing steadily into the infra-red. The sub-peak around 4100Š may be produced by inclusion of cobalt oxide.
Patent GB-869765-A (GB)
Title: Improvements in or relating to the mounting of dressing-table wing-mirrors
IPC: A47B67/02
Filed: 1959-02-09
Abstract: 869,765. Dressing tables. COX, A. R. B. Jan. 29, 1960 [Feb. 9, 1959], No. 4434/59. Class 52(3). The wing mirrors 6 of a dressing table are mounted on cranked rods 7 journalled in bearings 8a, 8b to afford lateral movement of the vertical axis about which mirror 6 can swivel.
Patent GB-1120004-A (GB)
Title: Improvements in or relating to teaching apparatus
IPC: G09B5/04
Filed: 1966-02-01
Abstract: 1,120,004. Language laboratory. S. G. BROWN Ltd., and T. D. IBBOTSON. 6 Oct., 1966 [1 Feb., 1966], No. 4441/66. Heading G5G. A language laboratory comprises a plurality of student locations connected to a magnetic tape recorder 10, each location including a head set having two ear-pieces, only one 13 of which receives prerecorded signals from the recorder, and the other 14 of which receives signals from a microphone 15 and its associated amplifier 16. The microphone may be a noisecancelling microphone, and the head set may be provided with noise excluding pads for the ear-pieces.
Patent GB-227655-A (GB)
Title: Improvements relating to the glazing of window sashes
IPC: E06B7/14
Filed: 1924-02-21
Abstract: 227,655. Empson, K. Feb. 21, 1924. Glazing windows.-Window sashes are glazed by means of channel-shaped strips of metal a engaging the glass and provided with extensions or flanges b which are screwed to the sashes. The strips are mitred at the corners. Non-drying packing is used between the glass and channel and between the channel and the rabbet of the sash.
Patent GB-348606-A (GB)
Title: Improvements in and relating to reflector signs
IPC: G09F13/14
Filed: 1930-02-10
Abstract: 348,606. Signs. WOOD, A., 16, Haslemere Avenue, West Ealing, and SOLANITE, Ltd., 11, Portsea Mews, Portsea Place, Connaught Street, both in London. Feb. 10, 1930, No. 4472. [Class 3 (ii).] A reflector sign, in which the mirror M is of saw-tooth section and is arranged at an angle to the horizontal considerably greater than 45‹, is contained in a narrow triangular casing F. The stencil S is disposed either at the top or the front of the casing. A clear glass plate &c. may cover the open face of the casing.
Patent GB-1379703-A (GB)
Title: High-power objective with variable focus
IPC: G02B15/17
Filed: 1973-01-30
Abstract: 1379703 Zoom lens JOS SCHNEIDER & CO OPTISCHE WERKE 30 Jan 1973 [1 Feb 1972] 4639/73 Heading G2J A zoom lens has a fifth operative group acting as a relay lens and four groups combining to form a vario lens. I and IV are positive, II and III negative and movable to vary the focal length. Detailed optical data are given.
Patent GB-855260-A (GB)
Title: Improvements in or relating to the manufacture of delay lines
Inventor: MITCHELL ARTHUR GEORGE
IPC: H01J23/28
Filed: 1959-02-10
Abstract: 855,260. Making interdigital delay lines. ENGLISH ELECTRIC VALVE CO. Ltd. Sept. 10, 1959 [Feb. 10, 1958], No. 4684/59. Class 83 (2). A method of making a comb-like member A or B for an interdigital delay line comprises making a stack of plates, one set of alternate plates 1 being of a metal, e.g. copper and the other set of alternate plates 2 being of a different material, e.g. steel, binding the plates together by depositing a layer 5 of metal different from the material of the plates 2, cutting from one side of the stack, along a line 6, a sheet including portions of all the plates in the stack held together by the deposited metal and then dissolving away the portions of the plates 2. Unwanted portions of the deposited layer 5 are cut away and the remaining comb-like structure is sintered. Prior to depositing the layer 5 the stack is held together as by a tie-rod 3. A number of combs may be formed by cutting successive sheets from the stack.
Patent GB-589341-A (GB)
Title: Direct current saturable inductance (transductor) with self-magnetisation
IPC: G05B11/01
Filed: 1944-03-14
Abstract: 589,341 . Inductive relays. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 14, 1944, Nos. 4698 and 4699. Convention dates, March 26, 1943, and Feb. 4, 1944. [Class 40 (iv)] [Also in Group XXXV] Each core element of a transductor carries a main winding 4, 5 connected in series with a half-wave rectifier 2, 3 and a subsidiary winding which carries A.C., Fig. 5 (not shown), or pulsating current consisting of the half-cycles of the main A.C. other than those traversing the main winding. The subsidiary winding may have its own half-wave rectifier, Fig. 4 (not shown), or may be connected in series with the main winding of the other element of a pair, Fig. 1 (not shown). In a somewhat similar arrangement, Fig. 2, but arranged to give a rectified output, additional half-wave rectifiers 11, 12 are connected as shown, a direct current load being connected to terminals 13, 14 instead of an A.C. load in series with the A.C. input terminals 1, 8. In a similar arrangement, Fig. 3 (not shown), the D.C. load is connected to the junction points of the main and auxiliary windings. The invention may be used in a 3-phase rectifying system, Fig. 6 (not shown). In the arrangement shown in Fig. 8, two similar pairs of transductor elements are provided, each element having a main and a subsidiary winding related as in the other embodiments. The load is connected at 20. In a similar arrangement, Fig. 7 (not shown), the rectifiers 21, 22 are replaced by individual rectifiers between each of the subsidiary windings and the upper main.
Patent GB-556616-A (GB)
Title: Improvements in electric contact devices such as fuses, cutouts and the like
IPC: H01H85/56
Filed: 1942-04-10
Abstract: 556,616. Fusible cut-outs ; two-part couplings. REYROLLE & CO., Ltd., A., GROOM, F. H., and LOWES, J. W. April 10, 1942, No. 4704. [Class 38 (i)] A fuse &c. carrier D is furnished with contacts each comprising a pair of members E, J mounted by means of a screw F on the carrier. The member E is loosely supported on a collar F<SP>1</SP> of the screw and its movement is restricted by a set screw G. The other member J is threaded to receive the screw and is guided on a spring blade K attached to the member E. The inclined surfaces E<SP>1</SP>, J<SP>1</SP> are pressed together by the spring so as to hold between them the flat end contact of a fuse or link. Then the carrier is inserted and the contact enters as a whole into a rigid U-shaped base contact and the screw turned so as to move the part J relatively to the member E so that the inclined surfaces co-operate to act as a wedge and tightly grip all the contacts together. Specification 492,040, [Group XXXVII] , is referred to.
Patent GB-489446-A (GB)
Title: An improved cigar or cigarette extinguisher
IPC: A24F19/14
Filed: 1937-02-17
Abstract: 489,446. Smokers' ash receptacles and cigar &c. extinguishers. SMITH, H. Feb. 17, 1937, No. 4707. [Class 130] A cigar or cigarette extinguisher comprises a piston-like member 9 slidable in an annular housing or barrel 7, fitted with a ring 8 for limiting outward movement of the piston, and spring fingers 14, the free ends 13 of which enter an aperture 11 in the piston. On inserting a cigar &c. in the aperture 11 and depressing the piston, the ends 13 grip and extinguish the end of the cigar. As shown in Fig. 1, the barrel 7 is supported by arms 6 on an ashtray 5 and the spring fingers 14 are formed by a C-spring secured at 15 to the tray. In modifications, the extinguisher is mounted on a receptacle such as 17, Fig. 5, which may be provided at the front with a removable hemispherical cover 18, a flat cover, or an opening in front of which is fixed an ash-tray.
Patent GB-1169781-A (GB)
Title: A Mechanical Device for Automatically Compensating for Wear of the Brake Pads of a Disc Brake
IPC: F16D65/14
Filed: 1967-01-31
Abstract: 1,169,781. Disc brakes. MESSIER. 31 Jan., 1967 [16 Feb., 1966], No. 4708/67. Heading F2E. A disc brake wear compensating device comprises an axially-movable push rod 9, Fig. 1, fixed for rotation with a screw 3 engaged by balls with a nut 4, the push rod being screw-threaded into a tube nut 11 by screw threads of opposite hand and the same pitch so that between the screw and nut, two coil springs 14, 15 being arranged so that when the screw 3 is rotated one spring drives the tube nut 11 in the same direction and when the screw 3 is rotated in the opposite direction the other spring is driven by the tube nut for part of its rotation and is then wound round the tube nut to grip the tube nut thereby interrupting the rotation of the tube nut. In normal hydraulic operation the pressurized fluid arriving at orifice 25 causes piston 2 to apply the friction pads against the force of U- shaped spring 19. During mechanical actuation a lever 6 is rotated by a cable 20 by an amount (+5), Fig. 4 (not shown) which represents the movement required to take up the normal clearance of the brake (α). Fig. 8 (not shown) and the additional movement (αÁ) due to friction pad wear. Lever 6 rotates the ball screw 3 and push rod 9 in the same direction. The nut tube 3, 4 is also rotated in the same direction by spring 15 an end of which is engaged in a slot in the end of the ball screw (see Fig. 8) so that there is no relative movement of these parts as the assembly moves forward by an amount equal to the brake clearance. Spring 14, which normally grips the nut tube, is also rotated through the same angle so that its free end, which is engaged in a slot in the end of the nut 4, is engaged by a side (18a) of this slot. Because of its winding direction the spring 14 ceases to grip the nut tube 11 which continues to rotate through the additional movement due to friction pad wear. During brake release brake lever 6 is rotated in the opposite direction until the ball screw 3 abuts the cylinder bottom 31. The spring 14 rotates in the same directon with the nut tube since its free end disengages from the side of the slot in the nut 4. When its free end engages the opposite side of the slot the spring 14 grips the nut tube 11 which is prevented from rotating with the push rod 9 thereby changing their relative positions by an amount which corresponds to the additional movement due to brake wear. This causes the extremity of the push rod 9 to remain stationary with respect to the caliper 1 during the last phase of the brakerelease movement to take up any play present. In a modification a device, Fig. 2, is used additionally to the mechanical actuation to effect wear take-up during hydraulic actuation. During movement of piston 2 in direction A the normal clearance between circlips 28 and washer 29 is taken up and elastic rings 27 are moved along the push rod 9 a distance corresponding to the wear of the friction pads. During the return movement piston 2 engages the elastic ring 27 thus taking up wear.
Patent GB-1275202-A (GB)
Title: Improvements in methods and means for fastening units to bases with explosion-driven fixing elements
Inventor: AITTOMAKI SAMULI
IPC: B25C1/18
Filed: 1970-02-02
Abstract: 1275202 Fastener driving tools S AITTOMAKI and S TAMMI 2 Feb 1970 [3 Feb 1969 12 June 1969] 4802/70 Heading B4C [Also in Divisions F2 and F3] A fixing element 1 (see Division F2) for attaching a unit 4 to a base 5 is fired into its fixing position from a driving tool having an explosion driven piston 9 so that the shank of the fixing element penetrates through the unit 4 into the base 5 and a concavo-convex abutment part 3 which may be integral with or separate from the shank travels with its concave side leading and penetrates into the unit 4. The piston 9 is arranged in a barrel 12 having a muzzle 10 at its leading end, the muzzle providing an abutment surface for preventing the piston 9 from leaving the barrel. The barrel 12 has a recess for a powder cartridge 8 which is fired by a firing pin 6 in a breech unit 13.
Patent GB-873288-A (GB)
Title: Improvements in crates for bottles
Inventor: SCOTTING ALFRED EDWARD
IPC: B65D85/30
Filed: 1959-02-11
Abstract: 873,288. Bottle crates. AMIES & CO. Ltd., W. E. Feb. 10, 1960 [Feb. 11, 1959; March 12, 1959 ; July 1, 1959], Nos. 4838/59, 8659/59 and 22655/59. Class 18. A bottle crate comprises a box having an insert of resilient material consisting of a marginal base 16 secured at the box bottom and hollow integral separator fingers 10 connected by integral webs 11 to form rectangular bottle compartments 15. The fingers 10 of each outermost row have outwardly extending fins 13 in alignment with the webs and joined to the upper surface of the base 16 at strengthened points 19 ; both webs 11 and fins 13 have strengthening ribs 18. The base 16 is secured between the box floor and the side walls. In a modification, Fig. 5, the insert comprises separately moulded upper and lower sections A and B; the lower section A has a base 29 with a surrounding upright flange 30 and hollow bosses 31 with spigot tops 32 connected by partition webs 33, the bosses 31 supporting hollow tubular fingers 37 of the upper section B, and the two sections are secured together by e.g. spindles 39 with hooks 40 engaging cross members of a wire basket 20 for accommodating the insert.
Patent GB-782587-A (GB)
Title: Automatic feed-weighers
Inventor: LEE GEORGE ARTHUR
IPC: G01G13/00
Filed: 1955-02-18
Abstract: 782,587. Weighing apparatus. AUTOPACK, Ltd. Feb. 2, 1956 [Feb. 18, 1955], No. 4880/55.. Class 143 In; an automatic feed weigher the influence of a lever 8 bearing on the weigh beam 5 is adjustable by moving the fulcrum 8a of the lever in a direction to move the lever longitudinally. The lever which is used either to compensate for the material in suspension at cut off, or to adjust the speed of movement of the weigh beam under load, engages beneath a roller 7 supported in a bracket 6 secured to the beam, and is provided with an adjustable poise weight 9. Movement of the fulcrum 8a is effected by a graduated knob 16, a flexible shaft 15, an axially fixed screw 11 and a bracket 10 which is held against rotation by means of a sliding connection with a rod 14 arranged parallel with screw 11. In a modification (Figs. 3, 4, not shown) the bracket 10 is slid along a rod against the action of a helical spring by a Bowden cable which is tensioned by a cam rotated by a graduated knob.
Patent GB-1204801-A (GB)
Title: Metallic compositions
IPC: C22C29/10
Filed: 1968-01-31
Abstract: 1,204,801. Sintered TiC alloy. FORD MOTOR CO. Ltd. (Ford Motor Co.). Jan. 31, 1968, No.4891/68. Heading C7A. A sintered alloy, suitable for use in cutting tools, consists essentially of:- Mo and/or MoC about 8À5% and Ni about 17À5%, the balance being TiC, which is free of dissolved Mo and MoC and is bound in a binding alloy of the other components. The alloy is free of detrimental quantities of nitrides and oxides. An exemplary composition consists of:- TiC 73.5% Ni 17À5% Mo 8À5% and graphite 0À5%
Patent GB-1038131-A (GB)
Title: Improvements in or relating to magnesium-containing electrolytes
Inventor: VINCENT RUSSELL SWALE
IPC: H01G9/022
Filed: 1962-02-09
Abstract: 1,038,131. Capacitors. PLESSEY CO. Ltd. May 2, 1963 [Feb. 9, 1962], No. 5069/62. Heading H1M. A low resistance electrolyte for an electrolytic capacitor comprises an acidic and a basic component, the basic component comprising a salt of magnesium. The electrolyte may comprise magnesium dissolved in concentrated citric acid solution. Crystals of tri-ammonium citrate may be dissolved in the solution, or the solution may be mixed with di-ammonium hydrogen citrate or with a solution of magnesium acetate. Another composition comprises a mixture of ammonium acetate solution, magnesium acetate solution, and solutions in water of ammonium hydrogen tetraborate and ammonium hydrogen citrate. Glycol or a glycol composition may be added to the electrolyte in amounts up to 50% by volume. The glycol composition may comprise ethylene glycol mixed with anhydrous ammonia and boric acid or with water and ammonium pnitrobenzoate. The nitrobenzoate solution has the advantage of possessing fungicidal properties. The electrolyte allows the capacitor to be sealed without providing a vent, though a normally resiliently closed vent may be provided. The capacitor may be of the miniature etched foil or plain foil type.