baber/WOPTO huggingface dataset:
Patent GB-844106-A (GB)
Title: Improvements in or relating to devices for filling well casings
IPC: E21B21/10
Filed: 1958-04-29
Abstract: 844,106. Wells. HALLIBURTON OIL WELL CEMENTING CO. April 29, 1958 [May 10, 1957], No. 13636/58. Class 85. A device for permitting drilling fluid to fill casing as it is lowered into a well comprises a housing 18 connected in the casing, a valve body 38 fired within the housing by shearable means 28 so that passages 24b in the body are in communication with ports 24 in the housing, and a valve means 44 operated by differential pressure to permit or prevent the fluid entering the casing through a passage 40. The valve means comprises a piston 48 urged towards a seat 46 by a spring 56. The device is incorporated in the casing above a float shoe, and both the valve in the shoe and the valve means are closed during the initial lowering of the casing. When the device reaches a level where the hydro-static pressure is 80 p.s.i. the valve means opens and fluid flows through the passage 40 into the casing, some of the fluid flowing into the casing below the device through passage 42. When the pressure outside the casing is 60 p.s.i. greater than the pressure within the casing the valve means closes, and when the pressure differential is 80 p.s.i. the valve means again opens. Cement is then supplied to the casing, a plug being placed on top of the cement in order to displace cement from the casing out through the float shoe. As the plug reaches the body 38 the pressure of the displacing liquid is increased to shear pins 28 so that the body is moved downwardly until snap ring 32 engages a groove 34 in the housing and the ports 24 are closed. After the cement has set the valve body and valve member are drilled out. If during lowering of the casing an obstruction is moved by pumping fluid down through the casing, out of the shoe, and up to the surface outside the casing, the valve means remains closed. If the casing is floated for the last part of its way into the well, a ball is landed on a ring 66 on the body and sufficient pressure is applied above the ball to shear the pins 28 and close the ports 24. An increase in pressure on the ball fractures the ring so that the ball is received in a cavity 42 in the body to permit cement being pumped down the casing and forced out through the valve in the shoe.
Patent GB-475124-A (GB)
Title: Improvements in resilient suspensions for aircraft engines
IPC: B64D27/04
Filed: 1936-05-14
Abstract: 475,124. Aircraft engine mountings. SOC. FRANCAISE HISPANO-SUIZA. May 14, 1936, No. 13659. Convention date, April 27. [Class 4] In a device for the resilient mounting of engines in aircraft with the aid of resilient suspension means arranged between the individual load-supporting parts of the aircraft and points of support on the engine, the loadsupporting parts A which are connected with the aircraft are arranged, at least in part, on both sides of the vertical axial plane of the engine and are connected together by non- deformable bracing members 4. As shown in Fig. 1, four load-supporting parts A are arranged on a cantilever framework supported at points C on the fuselage and support, by means of elastic cushioning devices 3, points B on an engine supporting framework. The latter framework comprises longitudinal members 10 secured to the engine brackets 9, Fig. 2, and connected by oblique struts 11 to the points B which are connected transversely by struts 12, the whole structure being braced by struts 13, 14. The points A are connected transversely by struts 4 and form with longitudinal struts 5, a quadrilateral which is supported by tension rods 7 and struts 8 from the fuselage. The framework may have articulate or welded joints and cushioning member 3 may consist of a cap member secured to the point B and enclosing a rubber disc having a central stem fixed to the part A, the relative motion of the interconnected parts moving along their centre-line which is perpendicular to the axis of the aircraft propeller. The connectors 3 may be combined with friction or hydraulic shockabsorbers.
Patent GB-742372-A (GB)
Title: Apparatus for the measurement of very small lengths
IPC: G01B21/06
Filed: 1953-05-17
Abstract: 742,372. Measuring length photo-electrically. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. May 15, 1953 [June 11, 1952], No. 13691/53. Class 40 (3). In apparatus for measuring small lengths in which interference fringes are displaced in accordance with the lengths, an apertured grid oscillates continuously over the fringes so that the difference between successive time intervals between successive coincidences of the bright fringes with the slits is a measure of the length and is determined photo-electrically. As shown, the movement to be measured is translated into the motion of a member 10 carrying a mirror 7, which, with mirror 6 and prisms 4, 5 forms a Michelson interferometer. The fringes produced from the light source 1 are imaged by lenses 11 in the plane of a grid 14 which is continuously oscillated by an A.C.-fed solenoid 15. Depending on the movement of the fringes the coincidences of fringes and slits succeed each other at unequal time intervals, alternate intervals being equal. The light impulses passing through the grid are received on a photo-electric cell and converted into very short impulses by known electronic devices which may be as described in Specification 581,930 and fed to a measuring device III comprising a reversing switch described in Specification 686,274 and a reading instrument having considerable mechanical inertia which translates the inequality of time elapsing between the impulses emitted during the whole of period of oscillation of the grid into a measure of the displacement of the feeler 10. The impulses produced by the photo-cell may be used to illuminate a rotating stroboscopic disc as described in Specification 555,103 or may be displayed as a cathode-ray tube as described in Specification 684,435.
Patent GB-747453-A (GB)
Title: Improvements in or relating to method and apparatus for coating filaments of glass
IPC: B29C37/00
Filed: 1954-05-11
Abstract: 747,453. Coating glass filaments with metals. GOODRICH CO., B. F. May 11, 1954 [May 21, 1953], No. 13703/54. Class 82(2). Glass filaments are coated with metal by passing them through the molten metal maintained as a ridge or bead by capillary action. The filaments may be coated whilst being drawn in a conventional machine. A graphite block 10 heated by an electric element 14 holds a mass of molten metal in a space 11 communicating with a further space 12. A slit 13 of capillary dimensions is provided and the glass filament passes therethrough above the level of the molten metal in the main space 11 but below the level in the capillary slit. In a modification (not shown) a horizontal capillary tube made of glass and contained in a graphite sleeve, maintains a bead of metal at its orifice through which bead the filament is passed. A further modification (not shown) employs a horizontal tube with an axial capillary slit from which protrudes a ridge of metal thus permitting simultaneous coating of several filaments. The coating metal is Zn, Pb, Sn or Al, or their alloys.
Patent GB-935946-A (GB)
Title: Improvements in the production of shaped, light building materials
IPC: C04B38/06
Filed: 1960-04-19
Abstract: Slate material is fired and expanded in moulds to produce a light, shaped building material.  In an example the composition of the slate is as indicated below, the first column referring to the dried raw material, including the weight lost during firing, and the second column refers to the fired material.  <TABS:0935946/III/1> Weight lost during firing 4,68 by weight.  The slate, dumped as waste after the manufacture of fuming sulphuric acid, is crushed to a grain size of about 2 cm. and inserted into a divisable fireclay mould placed on a tunnel truck.  The slate is fired at 1380 DEG C. and the expanded final product has the following physical properties:-compression strength 60-70 kg./cm.2; density 700-800 kg./m.3; thermal conductivity 0,20-0,25 k. cal./hour.m, DEG C.ALSO:Shaped light building material is produced by filling a divisible fireclay mould on a tunnel truck with crushed slate comprising mainly silica and aluminium oxide and heating the slate to inflate it in a tunnel oven at 1380 DEG C.  In an example the composition of the crushed slate before firing was 51,94% by weight SiO2, 25,54% by weight Al2O3, 2% by weight TiO2, 4,46% by weight Fe2O0, 2,10% by weight CaO, 3,94% by weight MgO, and 4,68% loss of weight occurred during firing.  Sand strewn over the mould prior to charging adheres to the material during firing and produces a surface resembling artificial plaster. The levelled slate layer may be provided with a required surface colour by strewing it with sand or brick powder.
Patent GB-772715-A (GB)
Title: Improvements relating to apparatus for generating a series of related electrical signals especially for use in electrical code systems
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03M1/00
Filed: 1953-05-16
Abstract: 772,715. Pulse code modulation; pulse circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 13, 1954 [May 16, 1953], No. 13783/53. Classes 40(5) and 40(6) In a coding or decoding circuit, positive and negative reference potentials d, e, Fig. 2, are set up at points X, Y, Fig. 1, connected to storage means C1, C4, associated with the outputs of seesaw amplifiers A. B, shuttle pulses c from terminal T10 and gates G1, G2, and G3, G4, being provided to render amplifiers A, B, alternately quiescent and connect the associated storage means to the input of the other amplifier. In order that the reference potentials may have steps of heights in geometrical progression with a ratio of one-half, resistance R13 in the input of amplifier A has twice the value of the other see-saw resistances R12, R21 R22. Between coding operations and under control of reset waveform b at terminal T7, gate G6 is closed and G5 open to connect the input of amplfiiers A, through resistance R11, to an initial datum voltage of value -Eo. The reset voltage reverses the conditions of gates G5, G6 at the commencement and for the duration of a coding operation. At the same time a similar pair of shuttling amplifiers C, D, are connected together by the opening of gate G13 and act as a summing device for voltages received from point X or point Y, under the control of gates G7, G8. The two-state device F determines which of gates G7, G8 is open and is controlled by clock pulses a, of the same recurrence frequency as the shuttle pulses, from terminal T6, which pass gate G15 or G14 depending upon the sign of the output from amplifier H. This sign is the sign of the difference between the analogue potential -V. Fig. 2g, to be coded, at terminal T8, and the potential at Z, Fig. 2g, at the output of the summing circuit. The latter is stored in device C6 of amplifier D and is shuttled back and forth to storage device C5 of amplifier C in which the appropriate increments are received from X or Y. The clock pulses h passing gate G14 form the code pulses at terminal T9. When the circuit is to be used for decoding, operation of switch S5 connects incoming digital pulses on terminal T9 to the gates G14, G15, so that the reference voltages fed to the summing device are controlled thereby and the output of amplifier H, which becomes a see-saw amplifier, is connected to terminal T8 from which the decoded analogue potential is taken. Specifications 772,714 and 772,716 are referred to.
Patent GB-1354577-A (GB)
Title: Process for the purification of manganese dioxide ore
IPC: C25C1/00
Filed: 1971-05-10
Abstract: 1354577 Electro-chemical purification of manganese dioxide ore P K EVERETT 10 May 1971 [11 May 1970] 13970/71 Heading C7B MnO 2  ore 1 is purified in an electro-chemical cell having an anode 5, a porous diaphragm 6, a cathode 4 and a mesh 10 preventing physical contact of the ore 1 with the cathode 4. The MnO 2  ore provides Mn ions in the electrolyte 3 and these are oxidized at the anode to deposit purified MnO 2 . The anode 5 is a rotating Pb graphite or Ti drum or discs and purified MnO 2  is removed therefrom by a scraper 8. Initially deposited MnO 2  may be returned to the cell as shown at 9. The cathode is of Pb or graphite. Tank 2 is of lead-lined steel. The MnO 2  ore may be slowly agitated. The electrolyte is heated to over 80‹C.
Patent GB-1125696-A (GB)
Title: Improvements relating to pressing or smoothing machines
IPC: D06F73/00
Filed: 1967-03-28
Abstract: 1,125,696. Pressing-machines. NORMBAU G.m.b.H. MASCHINEN-APPARATE-WERKZEUGE & CO. MASCHINENFABRIK. 28 March, 1967 [26 March, 1966], No. 13984/67. Heading D1A. A garment pressing machine comprises a shoulder support 13 hem clamps 31, 32 and spreaders (26, 27), a clamp 14, 15 to hold the edges with buttons and buttonholes together and a pipe 38 for passing live steam and a nozzle 42 for passing dry air to dry the garment. In operation the jacket is placed over the shoulder support 13 and the hem is clamped by the clamps 31, 32 under manual control and the clamp 14, 15, is closed. The spreaders (26, 27) move outwardly to spread the hem into an oval shape and the shoulder support 13 is raised by a rod 6 the appropriate height being selected by putting a pin 11 in either a hole 9 or a hole 10. A steam heating coil 36 is provided. Live steam is passed through the garment via apertures 41 in the pipe 38 and dry air is passed through a pipe 42 both for timed intervals. The central portion of the press is rotatable to facilitate loading and is covered by a permeable bag (not shown) to facilitate steaming. The garment may be hand sprayed before steaming and drying.
Patent GB-917033-A (GB)
Title: Injector for thermonuclear apparatus
IPC: H05H1/22
Filed: 1960-04-21
Abstract: 917,033. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. April 21, 1960 [June 23, 1959], No. 13986/60. Drawings to Specification. Class 39 (4). A process for injecting reactants into a dense magnetically collimated plasma column comprises decreasing the plasma density in a localised region by means of a pair of reflector fields which are moved apart, and injecting reactant material into the localised region. The process may be applied to a thermonuclear apparatus of the stellarator type, the reflector fields being produced by feeding three pairs of the normal confining coils through rectifiers from a threephase A.C. supply; energetic neutral atoms or molecular ions are fed into the space between the central pair of coils at the periods when the reflector fields start moving apart. Alternatively the reflector fields may be produced by a pair of axially slideable coils which are mechanically reciprocated. Specification 850,821 is referred to.
Patent GB-831158-A (GB)
Title: Improvements relating to presses
Inventor: CIEREMANS CORNELIS JOHANNES AD
IPC: C08G69/44
Filed: 1957-05-02
Abstract: 831,158. Presses. UNILEVER Ltd. April 30, 1958 [May 2, 1957], No. 13996/57. Class 87(2). A press for producing objects from plastic material, e.g. soap tablets, has two co-operating dies, at least one of which comprises a rigid backing member and a continuous lining of resilient material, e.g. nylon, and means for deforming part only of that lining away from its backing member to disengage the finished object. In the press shown in Fig. 1, each die 1, 2 consists of a bolster 3, 3<SP>1</SP>, a support plate 4, 4<SP>1</SP>, and a lining 5, 51, the centre parts 11, 11<SP>1</SP> of which are made so thin that they can act like membranes. The surfaces of the supporting plates remote from the membranes are provided with recesses 16, 16<SP>1</SP> connected to ducts 17, 17<SP>1</SP> which in turn are connected to a source of pneumatic or hydraulic pressure. The supporting plates are also provided with ducts 18, 18<SP>1</SP> which connect recesses 12, 12<SP>1</SP> with recesses 16, 16<SP>1</SP>. The pressure may be applied to ducts 18 or 18<SP>1</SP> according to which die the tablet adheres to after moulding or the pressure may be applied to both sets of ducts before the mould is opened so that the tablet will rest free in the bottom die on opening.
Patent GB-1425657-A (GB)
Title: Gas turbine engine driven wheeled vehicles
IPC: F02C6/20
Filed: 1973-03-22
Abstract: 1425657 Variable ratio gearing MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 22 March 1973 [28 March 1972] 14008/73 Heading F2D [Also in Division F1] The invention relates to a propulsion unit for a vehicle of the kind comprising a gas generator, such as a gas turbine type gas generator, and a separate power turbine which drives the road wheels, possibly through a turbine speed reduction gear and a changespeed gearbox. The object of the invention is to provide a retardation effect when the vehicle is descending a down-gradient and is attained by utilizing a reversing gear. The assembly shown in Fig. 1 comprises a power turbine 2 which is mounted on a shaft 10 which carries a pinion 11 and is rotatably mounted in bearings 12, 13. A forward gear wheel 14 engages the pinion 11 and is secured on a shaft which is integral with the pump impeller 17 of a hydraulic coupling, the turbine member 19 of which is secured to a shaft 21 which is connected through a change-speed gearbox 23 to the road wheels. In normal forward drive the coupling 17, 19 is filled and the vehicle is driven in a forward direction. A reverse gear is also provided and comprises an idler gear 15 which engages the pinion 11 also a gear wheel 16 which is secured on a shaft which is integral with the pump impeller 18 of a second hydraulic coupling, the turbine member 20 of which is also secured to the shaft 21. For reverse drive, the coupling 17, 19 is emptied and the coupling 18, 20 filled whereby the vehicle is driven in reverse. In accordance with the invention reverse drive is selected when the vehicle is descending a gradient whereby the power turbine is driven by the road wheels and thereby acts as a brake. In Fig. 7 the hydraulic couplings are associated with the power turbine shaft 10 and a further clutch is provided so that the reverse hydraulic coupling is not rotated during normal forward drive. In Fig. 10 a free-wheel device 44 is provided in place of the hydraulic coupling for normal forward drive, a hydraulic coupling 50, 51 being provided for reverse drive and for braking.
Patent GB-259152-A (GB)
Title: An improved cooking utensil with hinged and removable lid
IPC: A47J36/12
Filed: 1926-06-03
Abstract: 259,152. Neumann, E. June 3, 1926. Hinges readily detachable. - Relates to a cover for coking-vessels adapted to be secured thereto by a detachable hinge. In the form shown, the cover is connected to the vessel by a tapered plug member f, mounted on the cover, engaging in a socket c on the vessel, the plug member being connected to a handle member g, h, fixed to the cover, by a pivot pin e. The parts of the hinge may, however, be attached to the vessel, the socket member being provided on the cover.
Patent GB-560643-A (GB)
Title: Improvements in or relating to hydraulic accumulators
IPC: F15B1/10
Filed: 1942-10-07
Abstract: 560,643. Hydraulic accumulators. BENDIX AVIATION CORPORATION. Oct. 7, 1942, No. 14095. Convention date, Dec. 12, 1941. [Class 69 (ii)] [Also in Group XXII] An hydraulic accumulator comprises a shell 10 with oppositely disposed gas inlet and liquid. outlet openings 28, 12 and containing a flexible bladder 18 which is secured directly to the shell 10 in the region of the opening 28 and which is pre-formed to the shape of the interior of that half of the shell adjacent said opening. The shell may be spherical and the bladder preformed to the free shape shown in Fig. 5 with thinner wall sections 19. The bladder carries inner and outer rigid discs 25, 22 which, respectively, cover the gas inlet 28 when the bladder is collapsed, and the liquid outlet 12 when the bladder is extended. The shell may be formed from one or more pieces of steel. As shown in Fig. 13 sheet material is punch drawn into a deep cup 90 which is placed in a two-part die 92, filled with rubber or an incompressible liquid,-and a die member 93 is forced into it.
Patent GB-1306618-A (GB)
Title: Electrical interface connector assemblies
IPC: H05K1/00
Filed: 1971-05-11
Abstract: 1306618 Electric couplings INTERNATIONAL BUSINESS MACHINES CORP 11 May 1971 [10 June 1970] 14188/71. Heading H2E [Also in Division H1] A connector for interconnecting two printed circuit boards 14 comprises three conductive sheets 16, 18, 20 bonded together, the sheet 18 being of resilient metal and comprising 8- shaped contacts 22 each of which forms two contact elements 24, 26 interconnected by a base portion 28, the sheets 16, 20 having a dielectric coating 38 and openings 32, 35, respectively, registering with the contact elements 24, 26, some or all of which are deformed to extend through the openings for making contact with lands 12 on the boards. Initially the S's are interconnected by pads 30 and pad-holes 34, 36 in the sheets 16, 20 expose the pads when the sheets are assembled together; some (or all) of the pads are subsequently removed by etching to isolate some of the S's from each other and to leave others interconnected as desired, those elements with no pad remaining being deformed to extend through the openings 32, 35. The pad holes 34, 36 have extensions 33, 37 to expose the "back" of a contact element for engagement by a tool during the deformation. Some of the elements 24, 26 may be connected to the sheets 16, 20 by spot welding. The elements 24, 26 are coated with a precious metal.
Patent GB-836361-A (GB)
Title: Improvements in or relating to forming a mat or layer of discrete material
Inventor: MITLIN LEONID
IPC: B27N3/14
Filed: 1956-05-08
Abstract: 836,361. Feeding wood chips. BRITISH ARTIFICIAL RESIN CO. Ltd. May 2, 1957 [May 8, 1956], No. 14215/56. Class 78 (1). Wood chips from hopper 21 are fed by feeding means 22 into tray 1 which is vibrated so as to feed the chips through its bottom 50 to form a layer of material on endless travelling band 5. The bottom 50 is formed of rods 9, a mesh 10 which strickles the top of the layer and defines its thickness, and sheets 25 (not shown) secured to brackets 23 which serve to blank off areas to ensure that the layer of material is uniform in density over its entire width. The tray is carried by arms 11 pivoted at 12 and is vibrated by eccentrics 13 on shaft 14 driven by motor 17, a counterweight 20 being vibrated from the same shaft. Specifications 665,276 and 704,346 are referred to.
Patent GB-750750-A (GB)
Title: Improvements relating to suction cleaner filter bags
IPC: A47L9/14
Filed: 1954-05-14
Abstract: 750,750. Suction cleaner filter bags. HOOVER, Ltd. May 14, 1954 [May 18,1953], No. 14267/54. Class 8(2). [Also in Group XVII] A disposable paper filter bag 30, Fig. 1, for a vacuum cleaner has two sets of longitudinal pleats 33, Fig. 2, extending the full length of the bag between the edges of opposite webs 31, 32 and the inlet opening is formed at one side by one web 32 and at the other side by the web 31 and all the pleats 33. The web 32 is wider than web 31 and the outer and inner fold lines 35, 34 are offset progressively inwards in echelon fashion as shown in Fig. 3. The inlet end 43 of the web 32 is cut straight whereas the ends of the pleats 33 web 31 and a dirt trap strip of cardboard 47 are curved and are secured together to assist the introduction of a filter adapter tube 21 having a groove 24 in which the bag is held by a garter spring 25. When inflated the bag distends below the adapter tube due to the disposition of the pleats and forms with the trap 47 a dirt collecting pocket. An appearance bag 29 protects the bag 30, and the adapter 21 is connected by a flexible bellows 22 to the fan exhaust outlet 12.