baber/WOPTO huggingface dataset:
Patent GB-483494-A (GB)
Title: Improvements in a method of separating the constituents of a mixture of gases
IPC: F25J3/04
Filed: 1936-10-20
Abstract: 483,494. Separating gases by liquefaction. TWOMEY, L. S. Oct. 20, 1936, No. 28562. [Class 8 (ii)] Air freed from dust and carbon dioxide is cooled by passage through exchangers A, B and passes to a rectifying column J, K; the separated products flow back through the exchangers, cooling the air. Between the exchangers the nitrogen, or in some cases the oxygen or the air, is regulably cooled by a bath C of liquefied ethylene to compensate for fluctua. tions in the condition of the incoming air ; the moisture deposited in exchanger A is drawn off through drains 14. The air enters the lower section K of the rectifier, in the base of which crude oxygen is deposited ; this oxygen is drawn off and cooled in a vessel H where it boils oxygen from the second stage of rectification, and in a vessel F where it vaporizes an auxiliary liquefied gas such as nitrogen which is forced by a compressor 98 in circuit through a water cooler 89, an exchanger 85, a second oxygen boiler G and the vessel F, and so back through the exchanger to the compressor. Nitrogen condenses in a condenser separating the two rectifier sections and collects in a trough 80. Additional nitrogen is formed by a compound refrigeration process involving circuits, e.g. of ammonia, ethylene and methane and added to the nitrogen in the trough before passing to an oxygen boiler I from which the revaporized nitrogen flows to an exchanger D and thence to a vaporizer E and so to the upper column. An internal or external argon column L may be provided.
Patent GB-305619-A (GB)
Title: Improvements in or relating to gas meters of the wet type
IPC: G01F3/30
Filed: 1927-10-03
Abstract: 305,619. Compagnie pour la Fabrication des Compteurs et Materiel d'Usines a Gaz, and Millet, L. Oct. 3, 1927. Divided on 307,089. Gas meters.-The casings of gas meters of the wet type comprise front and rear shells 9, 10 secured at their edges to the flanged edge of the middle partition 8 by a single soldered or welded joint or by screws or bolts. The gas inlet tube and water inlet tube may be soldered to a plate such as 12 covering an orifice in the casing. This plate is secured after the operation of the working parts has been tested.
Patent GB-384029-A (GB)
Title: Improvements relating to traffic-control signals
IPC: G08G1/097
Filed: 1931-10-15
Abstract: 384,029. Electromagnetic switches. QUILLIAM, S. T., 4, Longford Road, Stretford, near Manchester, and HARRIS, G. G. R., 64, Milden Road, Sheffield. Oct. 15, 1931, No. 28613. [Class 38 (v).] In automatically changing traffic control signals failure of the signals to act properly within a predetermined time limit causes a warning circuit to be closed, the signals to be put at " caution," and, if desired, the main electric circuit to be broken. The emergency contacts are adapted to be operated by a weight 2 which normally keeps rising and falling without reaching its upper limit. The weight 2 is carried by a cord 3 wound on a pulley 4 geared to a disc 1 driven by an induotion coil 5 which is in connection with the ordinary signal control mechanism by wires 6, 7, and through a wire 8, contact 9, and pivoted contact 12 with a terminal 13. When the parts 9, 12 are in contact, which only occurs between signals or when the signal system continues improperly, the coil 5 is energized and the weight 2 is raised, and if time permits, the weight continues to rise until it engages the pivoted member 14, thereby opening contacts 16, 18 and breaking the circuit of the controlling mechanism. If the weight 2 rises still farther it closes contacts 20, 21 and completes the circuit of a warning device. Assuming the weight 2 to be in an intermediate position and the amber light in operation, the circuit for the amber light includes wires 25, electromagnet 24, pivoted lever 27, contacts 28, 29, and wire 30. The contacts 9, 12 being broken by the electromagnet 24, the weight 2 falls. If'the amber light operates beyond its normal period, the weight 2 falls to the position shown in Fig. 1 and so forces the lever 10 away from the core 24, closing the contacts 9, 12, thus causing the weight to rise. In a modification, a rotatable switch-operating arm replaces the weight. In another modification, Fig. 3, when the signal light is operating, a plunger 41 is pulled inwards by a coil 42, and a tube 35, pivoted at 36, is tilted to the right, but when the coil is de-energized, the tube tilts by gravity to the left and if time permits, or the amber light, for example, does not operate within a normal period, the mercury in the tube, flowing through an aperture in a bridge 38, bridges contacts 39, 40 and closes a warning circuit.
Patent GB-841376-A (GB)
Title: Production of footwear
Inventor: SWAIN ROBERT PADDY
IPC: A43D8/04
Filed: 1957-09-11
Abstract: 841,376. Shaping uppers of shoes. STANDARD ENGINEERING CO. Ltd. Sept.11, 1958 [Sept. 11, 1957], No. 28617/57. Class 17(1) The heel part of an upper incorporating mouldable stiffening is shaped between two moulds B & D, the latter mould being inflatable. The upper is placed around inner mould B and pincers F grip the upper and pull it tightly round the mould. Valve H is then actuated to allow air to pass to cylinder J, a piston inside the cylinder moving mould D to contact the upper; admittance of further air to cylinder J causes the cylinder to move back on link K which opens valve M allowing a diaphragm inside mould D to be inflated. The feather line may be impressed on the upper by having the diaphragm cover such an area that the upper is forced into engagement with the edge of the inner mould. The mould B incorporates an electric heater C. Specification 810,735 is referred to.
Patent GB-824219-A (GB)
Title: Improvements in and relating to the production of portland cement clinker
Inventor: SKINNER WILFRED JESSE
IPC: C04B7/40
Filed: 1957-09-11
Abstract: In the production of Portland Cement clinker, raw materials comprising precipitated chalk and argillaceous material are mixed with water to form a uniform plastic mud before being introduced into a kiln.  The preferred raw materials, viz. the precipitated chalk produced by double decomposition of ammonium carbonate and calcium sulphate, and clay, may themselves provide the desired amount of water for the mud, i. e. 18 to 25% by weight.
Patent GB-1509952-A (GB)
Title: Magnetically driven rotor assembly
IPC: D01H4/14
Filed: 1975-07-08
Abstract: 1509952 Driving and supporting centrifuge rotors MASCHINENFABRIK AUGSBURGNURNBERG AG and SKF KUGELLAGERFABRIKEN GmbH 8 July 1975 [12 July 1974] 28701/75 Heading B2P [Also in Division F2] A magnetically driven rotor assembly comprises a magnetic drive unit 7 which encircles the rotor 1 and serves as a magnetic radial bearing for taking up radial forces, the assembly further comprising an aerostatic and/or aerodynamic axial bearing for taking up axial forces. The rotor may be a flywheel for use in energy storing systems, an air sifter or, as shown, a plastics thread spinning drum. In Fig. 1, the rotor 1 is made of ferromagnetic material and in its inoperative position rests on a bearing plate 2 which has spiral grooves 3, the ribs between the grooves being coated with P.T.F.E. Compressed air may be supplied through valved conduits 5. The rotor is surrounded by a magnetic coil assembly 7, the inner surface of which is coated with a layer 9 of P.T.F.E., which serves to drive and centre the rotor. A circular rim 8 provided on its under-surface with spiral grooves is detachably mounted above the uper surface of the rotor. At the start of an operation, the rotor initially rests on the P.T.F.E. bearing surfaces 4 of the ribs on the plate 2. The centering field current in the coil assembly is switched on and compressed air is supplied through the conduits 5. The rotor is thereby lifted from the surfaces 4 and moves into its starting position The driving rotary field current in the coil assembly is then switched to set the rotor into rotation. When the rotor reaches a certain speed it builds up a supporting air pressure cushion on the edges of the spiral grooves 3, so that the supply of air through conduits 5 can be shut off. A dynamic air pressure cushion also builds up underneath the rim 8 so that the rotor floats between the two cushions. In a modification, the aerostatic bearing provided by the compressed air may be dispensed with. In Fig. 2, the outer surface of the rotor and the inner surface of the coil assembly are conical. The undersurface of the rotor is also conical and cooperates with a correspondingly shaped surface on the bearing plate 2 which is provided with spiral ribs 10 made for example of sintered metal and which is fixed in the frame 6 of the coil assembly by a bayonet type fitting 11. Another embodiment is described and illustrated.
Patent GB-625655-A (GB)
Title: Improvements in or relating to revolving axial piston pumps and liquid pressure engines
IPC: F01B3/00
Filed: 1945-10-30
Abstract: 625,655. Liquid pressure engines. ORELL, H. Oct. 30, 1945, No. 28734. Convention date, Oct. 30, 1944. [Class 69 (ii)] [Also in Group XXVIII] A liquid pressure engine of the type having axial pistons reciprocating in a rotating cylinder block 1, the passages to the cylinders passing through a part-spherical control surface 5, the lateral movements of the cylinder block are restricted by a guide pin 20. This pin enters a recess in the casing with a clearance 27 around it, filled with oil. Additional guide blocks 21 located in the same plane as the guide pin are also provided. In modified constructions described, the guide pin engages the central bore of the cylinder block through a spherical bush.
Patent GB-159022-A (GB)
Title: Improvements in and relating to adjustable wind screens and the like
IPC: B60J1/04
Filed: 1919-11-19
Abstract: 159,022. Robinson, S. J. Nov. 19, 1919. Pivoting-adjustments for wind-screens for vehicles, of the kind having a rod through the hinge with means for tightening clutches for holding the screen at any angle. The rod is threaded at each end to engage a non-rotating nut 4 caused as shown to engage a fixed bearing 7a which has a second cone surface to engage a cone 5 on the frame of the screen 14. A pin 8 screwed in the cone 4 is guided in a hole 9 in the part 5 so as to prevent rotation of the nut, several holes being provided to permit relative adjustment. A handle 5a is fitted at each end of the rod for operation, or may be fitted in the middle of the rod to permit convenient operation from any position. To prevent longitudinal movement of the rod, collars 6 may be fitted to it to bear against fixed shoulders 7. In a modification, the rod may be rotated by a rotary handle and bevel-gear or by worm gear. The worm gear may be operated by a handle 14a, Fig. 5, which can be tilted as a whole to set the angle of the screen.
Patent GB-603804-A (GB)
Title: Wheel mountings for aircraft
IPC: B64C25/40
Filed: 1945-10-30
Abstract: 603,804. Aircraft landing wheels. MANHEIM, L. W. Oct. 30, 1945, No. 28760. [Class 4] In order to effect rotation of a landing wheel prior to its making contact with the ground. the wheel mounting comprises a casing 13 forming a chamber 11<SP>1</SP> for the upper half of the wheel, and spaced from an upper casing 9 to provide a passage for the rearward flow of air, which is discharged forwardly by a nozzle 12 at the end of the casing 9 into the chamber 11<SP>1</SP> and against the upper portion of the wheel to effect rotation. In the form shown the wheel tyre 21 is provided with integral or detachable vanes 22 against which the air from the nozzle 12 impinges, the effect being augmented by the air stream impinging against the vanes on the lower half of the tyre. The flow of air through the nozzle may be controlled by a valve 15.
Patent GB-961755-A (GB)
Title: Level control arrangement for telephone substation sets comprising speech and/or receiving amplifiers
IPC: H04M1/76
Filed: 1962-07-26
Abstract: 961,755. Telephone subsets; transistor amplifier circuits. STANDARD TELEPHONES & CABLES Ltd. (Standard Elektrik Lorenz A.G.). July 26, 1962, No. 28771/62. Headings H3T, H4K and H4R. in a telephone subset, Fig. 1, in which the power for the microphone amplifier SVr and the receiver amplifier EVr is derived from the exchange battery, UB, over the line and is stabilized by Zener diode Z, the gain of the amplifiers is controlled by the potential developed across a resistor R1 in series with the line so that as the line inpedance increases and the potential across R1 falls the gain of the amplifiers rises to compensate for the increased attenuation in the line. The gain control potential is smoothed by resistor R and capacitor C, while the resistor R1 may be a part of the hybrid transformer winding. Fig. 2 shows the microphone amplifier SVr in which the gain control potential Ur controls via transistor Tr2 the biasing, and hence the gain, of transistor Tr1.
Patent GB-244576-A (GB)
Title: Improvements in and relating to the control of electric motors
IPC: B60L15/00
Filed: 1924-12-03
Abstract: 244,576. British Thomson-Houston Co., Ltd., and Tuppen, E. B. Dec. 3, 1924. Adapting control to more than one kind of supply.-For electromagnetically operated motorcontrol gear, for example on electric railway vehicles, :resistances 12 are automatically included in and excluded from the control circuits 11 by electromagnetic switches 9<a>, 9<b>, 9<c> depending on relays 2<a>, 2<b>, 2<c> which are responsive to the voltage of the supply.
Patent GB-645883-A (GB)
Title: Improvements in electric wave attenuators
IPC: H01P1/22
Filed: 1947-10-30
Abstract: 645,883. Electrical attenuators. POLYTECHNIC INSTITUTE OF BROOKLYN. Oct. 30, 1947, No. 29033. Convention date, Nov. 2, 1946. [Class 40 (viii)] In an attenuator for a wave-guide or coaxial line consisting of a thin plate of dielectric material carrying a loss-producing coating on one face, mounted in the waveguide with its plane parallel to the electric field, the loss-producing coating is discontinuous along the length of the plate to leave an endportion having either no coating or a reduced coating, for impedance matching. In one form, Fig. 3, a plate of glass 2 having a resistive coating, is mounted on rods 4, 5 passing through a wave-guide 1, and is movable relative to the guide wall by means of a screw 9 and springs 7, 8 to vary the attenuation. For impedance matching, the coating 3, Fig. 1, may leave the ends of the plate bare, or the coating at the ends may be thinner than in the middle (Fig. 2, not shown). In another form the plate 2 may be mounted on a bar 13, Fig. 5, for variable insertion through a slot in the guide wall. Specifications 576,145 and 643,494, [Group XI], are referred to. In the Specification as open to inspection under Sect. 91 there are described forms of the plate which are shaped as a parallelogram and a semicircle, and in which parts only of the end portions are coated. Also the plate may be carried on a pivoted arm for variable insertion into the guide. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 617,919.
Patent GB-387048-A (GB)
Title: Improvements in or relating to facilities for withdrawing ashes from furnaces
IPC: F23J1/00
Filed: 1931-10-20
Abstract: 387,048. Furnace ashpits. BENNIS, A. W., Bennis Works, Highfield Road, Little Hulton, near Bolton. Obt. 20, 1931, No. 29064. [Class 51 (i).] In a furnace with a grate having an ash delivery opening E at the rear, the passage of air from the ashpit B through the opening E is prevented by a rotary valve A which in its normal position extends from close to the underside of the grate to the ashpit floor. The space remaining between the top of the valve and the grate is sealed by means of ashes which accumulate in a V-shaped trough K. The valve is provided at one end with a worm sector F and is adapted to be rotated by means of a worm G, bevel gear wheels J and a shaft H with a hand-wheel H<1>. In the form shown in Fig. 1, the valve is semicylindrical and in order to allow the removal of ashes accumulating behind it, may be rotated so that its upper edge contacts and forms a seal with the rear wall of the ashpit. The ash pit door L is pivoted at L<1> and is adapted to be opened by means of a worm wheel M, worm N and hand-wheel O<2>. The opening of the door when the valve A is in an intermediate position is prevented by means of a cam A<3> engaging the valve and operating, through a system of levers, a locking device S on the shaft of the hand wheel O<2>. A similar locking device R arranged on the shaft H and connected by a link P<1> with the ashpit door, ensures that the valve cannot be rotated unless the door is closed. These locking devices are rendered unnecessary in modified forms in which the ash valve rotates in a curved seat formed between the rear wall and the floor of the ashpit and consists either of three-quarters of a cylindrical shell or of a central hub having radial vanes, in which latter case a counterweighted arcuate baffle plate rests on the upper side of the valve.
Patent GB-481657-A (GB)
Title: Improvements in loading mechanisms for guns
IPC: F04B39/00
Filed: 1937-10-25
Abstract: 481,657. Gun - loading appliances. KRUPP AKT.-GES., F. Oct. 25, 1937, No. 29073. Convention date, Oct. 29, 1936. [Class 92 (i)] A loading-tray k of the kind which is' connected by links f, g with the gun carriage has the length of the link f so varied during swinging of the links that the ammunition is automatically brought parallel with the barrel at varying angles of gun elevation. The receiving position of the tray is shown at III, and, in the loading positions shown at I and II, the tray rests on a rearward extension b<1> of the cradle. The link f is shown with a slot t engaging over a pin u on the gun carriage the end s of the link moving in a cam groove r in the carriage. To enable the front of the tray to abut against the breech in all adjusted positions, the tray is made to slide axially in its support i by hand or automatic means.
Patent GB-315153-A (GB)
Title: Improvements relating to direction indicators for road vehicles
IPC: B60Q1/34
Filed: 1928-10-10
Abstract: 315,153. Tarnopolsky, T. Oct. 10, 1928. Addition to 289,357. Road-traffic signals on vehicles.-In directionsignalling apparatus for use on road vehicles as described in the parent Specification, a gravity operated member on the casing m on the steering-wheel acts directly on the hand-lever a actuating the signals for returning the lever to its neutral position. Right and left signals are given respectively when a pivoted lever b is moved by the lever a to right and left so as to force a spring c mounted on a contact screw e into contact with one or other of two springs d connected by contact) screws f, l to the two signals. As soon as the steering-wheel is turned, say, to the right, a pivoted weight g swings to the right under gravity and a lever i carried thereby passes under a spring k, lifting it so that its pin o engages a hole in the lever b. When the steering-wheel is restored to the straight ahead position, the weight g moves the lever i and releases the spring k, which in turn releases the lever b, which returns to neutral position under the action of the spring c.
Patent GB-1129858-A (GB)
Title: Refrigerating apparatus
IPC: F16D43/18
Filed: 1966-06-29
Abstract: 1,129,858. Friction clutches. THERMO KING CORP. 29 June, 1966 [28 July, 1965], No. 29170/66. Heading F2C. [Also in Division F4] To facilitate removal of a prime mover (8) which drives a refrigerator compressor (20) and fan (30) through a friction clutch 102, 104, the clutch driven element 102 is freely rotatable on a stub shaft 78 fast with the casing 61 whilst the clutch driving element 104 is fast with the prime mover shaft 86 so that the driving and driven elements of the clutch are axially separated when the prime mover is removed by axially leftward movement, and during replacement of the prime mover sleeves 74, 82 respectively fast with the casing and prime mover align the driving and driven clutch elements. When assembled the prime mover is held in position by a screw 66. As shown weights 110 pivoted to the clutch driving hub 104 are urged centrifugally against the bias of return springs 112 into engagement with the driven drum 102.
Patent GB-648520-A (GB)
Title: Improvements in and relating to electrical condensers
IPC: H01G4/12
Filed: 1948-11-10
Abstract: A refractory ceramic material, e.g. for a condenser dielectric, corresponds to that obtained by firing together a mixture of barium oxide, titanium dioxide and cerium dioxide.  The preferred molecular percentages are 30 to 55, 35 to 53, and 21 to 3 for the barium, titanium and cerium respectively.  Instead of the oxides, any compound of the above materials which on firing decompose to give the oxide, may be used.  A ceramic flux, e.g. bentonite, up to an amount not exceeding 10 per cent by weight, may be employed.
Patent GB-1469540-A (GB)
Title: Hardened moulded bodies having cavities extending therethrough
IPC: B29D24/00
Filed: 1974-07-02
Abstract: 1469540 Moulding panels having bores extending therethrough SEMPERIT AG 2 July 1974 [2 July 1973] 29223/74 Heading B5A Apparatus for producing panels, having bores extending therethrough, from a composition containing particulate material bonded by a heat-hardenable resin, comprises a mould cavity defined by a closure member 4, support structure, and sides 6, and at least two inflatable core devices 7 adapted to be inserted into the mould cavity, the cores being inflatable by a heating fluid so that the material being moulded may be more effectively heated from within the bores formed by the inflated cores. As shown in Fig. 3, each core device 7 comprises a membrane 10 supported by a perforated tube 9, heating fluid being fed, as shown by the arrow A, into the tube 9 and through perforations 13 to inflate the membrane 10. The heating fluid is vented from the membrane through an annular passage 18 defined by a flange 12 and the tube 9. A metal tip 14 which is either screwed into, or integral with, the tube 9 facilitates insertion of the device 7 into the moulding material. In use, the mould is filled with the moulding composition, and the devices 7 inserted and inflated, heating being effected either simultaneously with the bore forming or subsequently thereto. If desired, preformed reinforcing strips of polyester may be positioned at the edge regions of the mould before filling with the remainder of the moulding material. Alternatively, these edge regions may be filled with a strengthened moulding material, e.g. a concrete/synthetic resin mix. Reinforcing elements, e.g. of steel, may also be positioned in the mould before filling. A suitable composition for moulding comprises (a) 5-60% of a first porous inorganic material, bulk density <0À25 g./cm.<SP>3</SP>, granule size <10 mm., (b) 15-80% of a second porous inorganic material, bulk density >0À25 g./cm<SP>3</SP>, and/or 0À5-10% of a synthetic resin foam, volumetric density 8-100 g./l., (c) up to 40% rubber granular and (d) synthetic resin binder. The first inorganic material may be perlite, the second metallurgical slag, expanded clay, or foamed cement droplets. The synthetic resin foam may be polyurethane or polystyrene. The binding agent is preferably used in 8-50% by weight, and may be urea formaldehyde resin. Reinforcing fibres may also be incorporated. A layered panel may be produced by feeding the material into the mould in discrete layers of a different composition. A panel comprising expanded clay may have a central layer with clay of granule size 15-20 mm. and outer layers of granule size <7 mm. Alternatively, a weather-resistant resin such as melamine, polyester, polyurethane, epoxy or acrylic may be used for the outer layers.