baber/WOPTO huggingface dataset:
Patent GB-636609-A (GB)
Title: Improvements relating to plant for the treatment of solid-bearing liquids
Filed: 1947-06-04
Abstract: 636,609. Treating sewage. SULZER FRERES SOC. ANON. June 4, 1947, No. 14780. Convention date, June 5, 1946. [Class 111] [Also in Groups II, VI and XXXVII] In a plant for the treatment of solid-bearing liquids, of the type including a disintegrator having a rotary cutting device, for reducing the size of large pieces of solid matter carried by the liquid, means are provided for reversing the direction of rotation of the cutting device e.g., when the cutter becomes clogged. If the disentegrator is driven by an electric motor, the direction of rotation of the motor may be reversed to reverse the direction of rotation of the cutting device. Sewage flows along a channel 1 in the direction of the arrow 3, the larger pieces of solid matter being held back by a grid 4, and passed by a rake 5 over a chute 6 into a channel 7, from which they are rinsed by a stream of water into a shaft 8, where the water level is kept below the level in the channel 1. The solid-bearing liquid is withdrawn by a pipe 13, at a rate equal to that of inflow from the channel 7, into a disintegrator 14, having a rotary cutter which is driven by an electric motor 15. The motor 15 is controlled by forward and reversing switches in a switch-box 19 connected to a push-button control 21 (see Group XXXVII). On pressing the button 37, the motor 15 drives the rotary cutter of the disintegrator 14 in the normal direction. When the cutter becomes clogged, the button 38 is depressed to cause the current to the motor 15 to be interrupted and then reversed, the rotary cutter stopping and reversing in turn. Pressing the button 37 causes the cutter to stop and then rotate in the normal direction once more. The motor may be stopped by pressing the button 43. Instead of the three-button arrangement 21, a single push-button may be provided for switching in an auxiliary motor which drives a cam for a single revolution, during which the motor 15 is stopped, reversed for a short time, stopped, and restarted in the normal direction. The switching in of the auxiliary motor may alternatively be initiated by a float in the shaft 8 rising above normal on choking of the disintegrator ; by a contact disc operated either by clockwork or by reduction gearing (including a one way clutch or the like) from the motor 15 ; or by excessive current in the secondary winding of a current transformer in one of the phase lines to the motor 15, when the latter is overloaded.
Patent GB-1066896-A (GB)
Title: Metal-ceramic joints
IPC: H01T13/34
Filed: 1966-04-04
Abstract: 1,066,896. Ceramic-metal seals. FORD MOTOR CO. Ltd. April 4, 1966 [April 22, 1965], No. 14782/66. Heading B3V. A method of fixing the central electrode in the ceramic insulator body of a sparking plug comprises inserting the electrode into a bore in the insulator and firing the insulator, causing it to shrink and grip the electrode. The insulator may be formed of alumina with other oxides as binders, and the electrode of Pt, Rh, Ir, Ru, Pd, Re, W, Mo, Ta or Nb or an alloy thereof. The assembly may be kiln-fired at about 2750‹ F. in air at a non-oxidizing atmosphere.
Patent GB-612177-A (GB)
Title: Improvements in or relating to braking systems for induction motors
IPC: H02P3/24
Filed: 1946-05-16
Abstract: 612,177. Control of A.C. motors. IGRANIC ELECTRIC CO., Ltd. May 16, 1946, No. 14815. Convention date, May 24, 1945. [Class 38 (iii)] Non-regenerative braking.-A direct-current generator G is mechanically coupled to an induction motor 1, which may drive a hoist, and is adapted to be connected to the primary winding thereof during non - regenerative dynamo - electric braking, and alternating- current, induced in the motor secondary winding during braking, is rectified and is fed back to the primary winding so as to supplement the direct-current supply from said generator. At the first step of lowering an overhauling load, a master controller, not shown, is moved to energize a relay BR and remove a mechanical brake, thereby allowing the load to drive the rotor of the induction motor and the armature of the generator G. A main switch M, a hoist switch H and a switch D are de-energized, contacts H1 and D1 of the latter switches being closed to connect the generator G across one phase of the motor primary winding. A switch FB is closed to connect the motor secondary circuit to the primary circuit through half-wave rectifiers 4, 5 and 6 and rotor resistances R. A reactor 12 is provided to afford protection against possible flow of alternating-current due to arcing at certain switch-contacts. In a modification, full-wave rectification is provided instead of the halfwave rectification afforded by the rectifiers 4, 5 and 6. The rectifiers are preferably of the electronic type, for example argon-filled diode valves. Specification 596,157 is referred to.
Patent GB-1358968-A (GB)
Title: Information input system using holography
IPC: G06K19/16
Filed: 1972-03-29
Abstract: 1358968 Holography SANYO ELECTRIC CO Ltd 29 March 1972 [31 March 1971; 11 Nov 1971 (3)] 14850/72 Heading G2J [Also in Division G4] A card carrying a plurality of digital numeric or alphabetic markings in the form of holograms has each marking successively decoded in a reader. A card such as a credit or identity card has several adjacent hologram records Fig. 1, (not shown) which preferably represent a 6 digit number. Each recording may be a phase hologram printed from a nickel master Fig. 4 , (not shown) in the form of a roll or a type face or may be fringes on a film. The card is inserted in a reader 10 and either manually pressed into the reader or transported mechanically. The leading edge of the card operates a detector 13 resetting counters 22, 23 and each hologram is read and an image of the original data Fig. 3 (not shown) is formed on a photo-electric detector 14. Signals from the detector are fed to an address in a store 28 determined by counter 22 incremented for each digit. When a detector 15 is operated the final digit should be opposite a read window 52 in the reader and counter 22 should read 6 for a 6 digit number. AND gate 41 detects the number and the signal from the detector and operates a repeat indicator if a fault occurs. A parity detector 35 can also operate the repeat indicator. A code number from a keyboard 30 is entered into a store 29 under the control of a counter 23 and the numbers are compared to check the validity of the card. The number from the keyboard is displayed on indicator 31.
Patent GB-481175-A (GB)
Title: Improvements in support for photographic colour-screen prints
IPC: G03C7/06
Filed: 1936-05-27
Abstract: 481,175. Colour photography. FILLER. F. May 27, 1936, No. 14974. Void. Convention date, June 4, 1935. [Class 98 (ii)] The support of a multicolour-screen print consists of a metal foil having a small coefficient of expansion, and strong enough to resist the tension of any coatings applied to it, e.g. a foil of aluminium or alloy thereof about À06 mm. thick, which may be covered on the back with paper. The foil is coated first with wax, then with a gelatin layer in which the screen pattern is formed, and finally with a photographic emulsion. Reference is made to a paper support with a thin metallic coating which may be covered with waterproof coatings to insulate the metal from the screen and emulsion layers.
Patent GB-616363-A (GB)
Title: Improvements in or relating to resonance relays
IPC: H02J13/00
Filed: 1946-05-17
Abstract: 616,363. Electromagnetic relays. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. May 17, 1946, No. 15036. Convention date, June 18, 1945. [Class 38 (v)] A resonance relay responsive to A.C. or intermittent current supplied at 10, 101 has a moving coil 1 which after a number of oscillations of increasing amplitude closes at 7, 6 a circuit from a D.C. source 8 which serves to maintain the contacts closed. Both the A.C. and the D.C. pass through the moving coil 1 and the moving contact arm 7 after completing the maintaining circuit through a resistance 14 moves still further to complete a signalling or other circuit 9. The relay is brought back to its original position by closing a short-circuiting switch 11. Specification 613,044 is referred to.
Patent GB-443471-A (GB)
Title: Improvements in or relating to the manufacture of bituminous macadam
IPC: E01C7/18
Filed: 1935-05-23
Abstract: A bituminous macadam for road making comprises a stone aggregate, a bituminous binder in amount of from 5 to 15 per cent by weight of the aggregate, and diatomaceous earth as a filler in amount of not less than 60 per cent by weight of the binder.  The bituminous binder may be a tar, e.g. coal tar or water gas tar. In an example, 11 gallons of a bituminous composition having a viscosity of 100-130 seconds, when tested with the Hutchinson Tar Tester at 77 DEG  F., are heated to 200 DEG  F. and added to a ton of graded stone aggregate of size 2 1/2 inch to quarter inch, previously warmer to 120 DEG  F.  One hundred-weight of kieselguhr is added and mixed in.
Patent GB-1371422-A (GB)
Title: Switch construction
IPC: H01H1/50
Filed: 1972-03-30
Abstract: 1371422 Air-break switches S & C ELECTRIC CO 30 March 1972 [5 April 1971] 15045/72 Heading H1N A switch has a switch blade 15 co-operating with a contact assembly which comprises a terminal bracket 29, a pair of elongated contact plates 50 secured at one end to opposite sides of the bracket and carrying at the other end contacts 52 having facing surfaces 54 for receiving the blade 15 therebetween. A leaf spring 60 overlying each contact plate for biasing the contacts 52 towards each other, an equalizer bolt 65 interconnecting the springs 60 intermediate their ends, and a spacer 67 limiting the movement of the contact plates towards each other. Arcing contacts may be attached to the contact plates, Figs. 8 to 10 (not shown).
Patent GB-1494384-A (GB)
Title: Dynamo electric machines
IPC: H01R43/06
Filed: 1975-04-12
Abstract: 1494384 Making dynamo-electric machines LUCAS ELECTRICAL Ltd 12 April 1975 15120/75 Addition to 1398518 Heading B3A In a method of making a dynamo-electric machine rotor assembly as disclosed and claimed in parent Specification the conductors of the armature assembly are deformed to define portions which after insertion of the winding ends into respective apertures, lie in the planes of the apertures and so provide within each aperture a conductor area engaged by a subsequently formed commutator segment. The step of metal spraying additionally comprises a first spraying operation to deposit a first metal of good electrical conductivity, e.g. aluminium or aluminium alloy, into each aperture to build up a segment base and a second spraying operation in which a layer of copper is sprayed on each segment base to define the surface of the commutator.
Patent GB-119308-A (GB)
Title: Improvements in True Vertical Indicators.
Inventor: CAIRNS AUSTIN
IPC: G01P13/02
Filed: 1917-10-18
Abstract: 119,308. Cairns, A. Oct. 18, 1917. Clinometers.-The vertical is determined by the flow of a light fluid passing through a heavier medium. In the form shown, a reservoir r packed with absorvent material soaked in paraffin feeds a flame f above which are mounted cross wires w. The flame and cross wires are viewed in a mirror m. The flame is enclosed in a gauze cylinder g with a mica window, and a draught excluder c. The indicator may also consist of bubbles of gas passing through a liquid.
Patent GB-200312-A (GB)
Title: Improvements in apparatus for suspending or supporting meat
IPC: A22C15/00
Filed: 1922-05-30
Abstract: 200,312. Tolley, C. May 30, 1922. Cambrels.-A bracket for suspending meat comprises front and rear members hinged together, means for holding them at any angle relative to one another, and means for supporting rails on the front member. The front member b, hinged at c to the rear member a attached to a wall, carries supports e for rails f on which joints of meat are hung to hooks g<1>. The member b is adjusted relatively to a by means of a strut d hinged to one member and engaging in one of a series of recesses a<1> in the other, or by other suitable means. The strut d alternatively passes through a slot in the front member, and a pin passing through the front member engages one of a series of holes in the strut.
Patent GB-496576-A (GB)
Title: Improvements in cutting devices for round trimming the corners of paper, cardboard or other easily cut sheet material
IPC: B26D1/44
Filed: 1937-06-01
Abstract: 496,576. Cutting paper &c. ANDERSEN, J. C. June 1, 1937, No. 15229. [Class 31 (i)] A device for rounding the corners of a sheet of paper, cardboard or the like comprises a movable upper blade 5 of rounded angular form having an opening 9 to provide angularly related cutting edges 10, 11 connected by a curved edge, which edges co-operate with the edge 12 of a fixed lower blade 4 when the upper blade is depressed by a knob 21 against a spring 13. A portion 15 of the spring 13 engages at its end with a slot 16 in the blade 5 to urge it upwards and a portion 17 projects at its end through a hole 19 in the fixed blade and engages a slot 20 in the movable blade to act as a guide. The blade 5 is further guided by a sheet-metal member 8. A sheet to be trimmed is positioned by the angularly related portions of the blade 5 with its corner projecting through the opening 9 as shown in dotted lines in Fig. 5. The sheet may be additionally or alternatively positioned by upstanding flanges 26 of a plate 22 adjustably mounted by a screw 25 and slot on the casing 1 of the device. The device can be used for cutting notches in the edges of sheets.
Patent GB-256742-A (GB)
Title: Improvements relating to sights for shot guns
IPC: F41G1/473
Filed: 1925-06-12
Abstract: 256,742. Loudon, J. P. June 12, 1925. Sights. - A backsight for shot guns comprises a sheet 1 lying over the breech with its plane slightly inclined so as to form a screen obscuring the breech. As shown, the sheet is attached to the gun by a clip 2. The sight is specially designed for use in conjunction with the foresight described in Specification 216,066.
Patent GB-477686-A (GB)
Title: Improvements in clip-removing tools
IPC: A01K11/00
Filed: 1937-05-20
Abstract: 477,686. Pliers. CARSTON, T. T. May 20, 1937, No. 15249/36. [Class 61 (ii)] A tool for removing clips from animals' ears comprises a pair of levers pivoted together, each lever consisting of a pair of members a, a<1> and b, b<1> yieldingly coupled by rivets c, c<1> and movable together or apart by a toggle device p, r so that pairs of hooks k, k<1> and m, m<1> on the shorter arms of the levers can be engaged between the limbs t<1>, t<2> of the clip with the bend t of the clip seated in a rest n on one of the arms, whereupon by moving the levers about the pivots d, d<1> the limbs t<l>, t<2> of the clip are spread apart.
Patent GB-892876-A (GB)
Title: Improvements relating to braking systems for drum winders, haulages, friction winders, and other like rotating devices
IPC: F16D65/28
Filed: 1957-05-15
Abstract: 892,876. Fluid-pressure brakes. ROBEY & CO. Ltd., and CROMPTON, A. May 15, 1958 [May 15, 1957], No. 15390/57. Class 103 (1). In a braking system for a rotating device (e.g. a mine winder) at least one brake is operable to brake the device and means responsive to overspeed of the device is adapted to actuate independently-operable first and second brakecontrol means at first and second predetermined values of overspeed of the device. Fig. 1 illustrates a theoretical duty cycle A with overspeed protection during constant speed and deceleration periods of a first predetermined overspeed value B and a second predetermined overspeed value C. In the braking system shown in Fig. 2 applied to a mine winder, a normal or first brakeapplying means is constituted by a piston 4 operating in a brake cylinder 5, the piston 4 being urged downwardly by pressure-fluid supplied to the upper end of cylinder 5 from an accumulator 2 via pipes 13 and 16 so that the arm 9 is moved downwardly to rotate the shaft 11 clockwise in the brake-applying direction when the pressure in the lower end of the cylinder is exhausted. A stored-energy emergency or second brake-applying means is constituted by weights 1 supported against gravity by fluidpressure in accumulator 2. If at any time overspeed exceeds the first margin allowance (represented by the vertical distance between lines A and B) a cam 6 on a speed governor (not shown) operates a first brake control means constituted by control valve 3 to exhaust the lower end of the cylinder 5 and cause application of the brakes. In the event of the valve 3 failing to operate and the overspeed exceeds the second margin allowance (represented by the vertical distance between lines B and C), the second brake control means, constituted by a valve 8 operated by a linkage 18 co-operating with a second cam 7 on the speed governor, is actuated so that the lower end of the brake cylinder and pressure accumulator 2 are both connected to exhaust through pipes 13, 14, respectively, and the shaft 11 is rotated in a clockwise direction by the link 10, the braking effort being supplied by the weights 1 falling under gravity. The latter braking effort is arranged to be greater than that applied at the first overspeed value by appropriate proportioning of the moments applied to the arm 9 by the piston 4 and the weights 1 or by arranging the cam 6 to cause less than total exhaust of the fluid in the lower end of cylinder 5 when tne first overspeed value is attained. The cams 6 and 7 may be replaced by solenoids associated with a speed governor for the winder. Specifications 540,921, 633,129, 674,330 and 846,555 are referred to.
Patent GB-185501-A (GB)
Title: Improvements in or connected with extensible tables
IPC: A47B1/02
Filed: 1921-06-03
Abstract: 185,501. British & Foreign Industrials, Ltd., and Cooklin, I. June 3, 1921. Expanding tables.-The top portions 5 are carried on slides 9, 10 which run in grooves in the end beams 2 of the frame, and are operated by screw-and-nut mechanism 11, 13. The leaf 6 is raised automatically from its stored position by the engagement of blocks 15 on one pair of slides 9 with inclined bars 7 on each side of the leaf. Stops are provided to limit the outward travel of the slides.
Patent GB-559929-A (GB)
Title: Improvements in or relating to desludging mechanisms
IPC: F16D25/00
Filed: 1942-11-02
Abstract: 559,929. Centrifugal separators. UNITED AIRCRAFT CORPORATION. Nov. 2, 1942, No. 15399. Convention date, Jan. 15. [Class 23] [Also in Group XXIV] Means for removing sludge from oil in the pressure chamber of a clutch member 32 comprises a plurality of depressions 76 around the inside of the member 32, each depression having an outlet aperture 78. A ring 80 has apertures 82 which periodically uncover the apertures 78 and permit sludge which has accumulated therein to be discharged. As shown, both members 32, 80, which have different tooth numbers, mesh with a gear 14, so that they rotate relatively to one another during operation of the clutch. Oil under .pressure is admitted to the clutch member 32 from a pressure chamber 62 through ducts 68 controlled by a piston valve 66, the right hand side of the valve 66 being subjected always to lubricating oil at a pressure below that which is supplied to the chamber 62 when it is desired to actuate the clutch. Ducts 72 lead lubricant to the clutch bearings. Specification 549,656 is referred to.
Patent GB-730513-A (GB)
Title: Improvements relating to acrylonitrile copolymer solutions
IPC: C08J3/09
Filed: 1953-06-04
Abstract: Copolymers of acrylonitrile with amides of alpha-, beta-unsaturated monocarboxylic acids are dissolved in a solvent selected from cyclopentanone, cyclohexanone, and nitromethane, and mixtures of one or more thereof with one another or with acetone.  Unsaturated amides specified are the N-methyl, N-ethyl, N-propyl, N-butyl, N-tert.-butyl, N-tert.-amyl, N-octyl, N-phenyl, N-(dimethyl-phenyl-carbinyl), N-cyclopentyl, and N-cyclohexyl acrylamides and methacrylamides, and the N-tert.-butyl, N-tert.-amyl, N-cyclopentyl, and N-cyclohexyl crotonamides and cinnamamides. Copolymers soluble in cyclopentanone and cyclohexanone may contain up to 87 per cent of acrylonitrile, and copolymers soluble in nitromethane may contain up to 97 mols. per cent of acrylonitrile. The solutions may be used in the preparation of films and fibres, and as coating compositions. Specifications 694,911 and 729,002 are referred to.
Patent GB-1173646-A (GB)
Title: Information Supplying Device.
Inventor: FAIR JAMES WALTER
IPC: G09B3/02
Filed: 1967-04-04
Abstract: 1,173,646. Educational appliances; indicator means. J. W. FAIR. 4 April, 1967 [4 April, 1966], No. 15433/67. Headings G5C and G5G. An information supplying device, e.g. an educational device, comprises a hollow transparent tube telescopically received within an outer hollow tube which includes at least one window therein through which an information carrier removably positioned within the inner tube can be viewed. As illustrated the carrier is a sheet 40 (Fig. 19) having thereon questions and associated answers. The outer tube 34 has two windows 44. The arrangement is such that, when the tubes are moved relative to each other and a question is located at one window its answer is positioned at the other window. In another embodiment (Figs. 20- 22, not shown) the outer tube has one window, the information is spirally arranged on the carrier and an end cap of the outer tube has a support for a lamp and batteries which is received within the inner tube, the lamp being adjacent the window. The outer tube may be made of a transparent plastics material and is suitably coloured or masked (Fig. 27, not shown) apart from portions defining the windows. One of the tubes may include a projection which engages a spiral groove in the other tube for predetermined relative movement. The windows may include magnifying lenses. If the windows are arranged along the same longitudinal line the answer window is provided with sliding door (92) (Fig. 18, not shown). The carrier may be a sleeve (Fig. 13, not shown), and a filler (50) (Fig. 8, not shown) may be placed within the carrier.
Patent GB-809397-A (GB)
Title: Processes and apparatus for agglomerating dust particles in flowing gases
IPC: B01J2/16
Filed: 1957-05-15
Abstract: 809,397. Electrostatic precipitation. PHOENIX-RHEINROHR AKTIENGESELLSCHAFT VEREINIGTE HUTTEN - UND ROHRENWERKE. May 15, 1957 [May, 15, 1956], No. 15449/57. Drawings to Specification. Class 39(1). In a process for removing dust from industrial waste gases, when the dust particles are extremely fine and electrically charged, the dust-laden gas is led in succession through at least two electric alternating fields of different voltages and frequencies which are preferably adapted to the charge and velocity of the dust particles, whereby the fine dust particles unite to form larger particles which may be removed from the gas by known electrical or mechanical purifying plants. The gas is preferably led in succession through alternating fields with increasing voltage and decreasing frequency, the number of alternating fields depending on the limits within which the charge and velocity of the particles vary. Each of the alternating fields may be established between two grid-like electrodes spaced from one another in the direction of flow of the gas. Each grid electrode may consist of a metal ring covered with wire mesh or four concentric metal rings connected together by electrically-conducting radial spokes.