baber/WOPTO huggingface dataset:
Patent GB-1476456-A (GB)
Title: Polymeric compositions and insulated products
IPC: C08L51/00
Filed: 1974-07-29
Abstract: 1476456 Flame retardant ethylene-vinylacetate copolymer/silicone elastomer compositions GENERAL ELECTRIC CO 29 July 1974 [22 Aug 1973] 33387/74 Headings C3P and C3T Compositions curable to a thermoset state to provide flame retardant insulation on electrical conductors comprise (1) 100 parts by weight of ethylene/vinyl acetate copolymer, (2) 25 to 150 parts by weight of hydrated alumina, (3) 2 to 25 parts by weight of silicone elastomer and (4) 2 to 10 parts by weight of a tertiary organic peroxide curing agent. The elastomer may be polydimethyl siloxane or polymethyl phenylsiloxane The peroxide may be dicumyl peroxide, 2,5- dimethyl - 2,5 - di - t. butylperoxy - hexane or hexyne - 3 or a, a - bis (t. butylperoxy) diisopropylbenzene. The compositions may also contain antioxidants, e.g. polymerized 1,2 - dihydro - 2,2,4 - trimethylquinoline, lubricants, e.g. calcium stearate, and vinyl silane coupling agents; and may be extruded on to copper wires.
Patent GB-1212042-A (GB)
Title: Improvements in or relating to driven plates for friction clutches
Inventor: DAVIES DAVID AUBREY
IPC: F16D13/68
Filed: 1968-07-12
Abstract: 1,212,042. Resilient clutch discs. AUTOMOTIVE PRODUCTS CO. Ltd. 26 June, 1969 [12 July, 1968], No. 33402/68. Heading F2U. A clutch friction plate comprises an annular disc connected to a hub 10 by leaf springs 25 received in radially outwardly divergent slots 14 in a flange 11 on the hub 10 which allow relative angular movement until the springs abut the slot sides, to cushion initial drive take-up, or torque reversal, the slots 14 having rounded bottoms 13 and having their minimum circumferential width at the junction 15 of the diverging sides and the bottoms. Again, Fig. 3, (not shown), the sides (26) of the slots are convex so that the springs engage the walls over increasing lengths to change their effective length and provide a variable-stiffness characteristic. The annular disc comprises a pair of friction material annulli 23 on inserts 22 connected between two flanges 16 which are formed with slots 24 receiving the outer corners of the rectangular leaf springs.
Patent GB-1016707-A (GB)
Title: Roughness tester for prime movers and electric motors and generators
IPC: G01M15/12
Filed: 1962-08-31
Abstract: 1, 016, 707. Detecting or measuring vibrations electrically or photo-electrically; vibration recording apparatus. ESSO RESEARCH & ENGINEERING CO. Aug. 31,1962 [Sept. 22,1961; July 16, 1962], No. 33527/62. Headings G1A, G1J and G1N. Apparatus for detecting roughness in running of engines and motors, particularly an internalcombustion engine, comprises a spring loaded rod 15, Fig. 8, which rests in contact with an engine part such as the air cleaner to detect engine vibrations and actuates a recording apparatus comprising a lever carrying a stylus which traces a record on a moving band, the speed of which is preferably variable. The movement of the lever is amplified by a linkage system. The detecting rod 15 forms an armature for an induction coil whereby the vibrations produce electric pulses which are amplified and used to operate a recorder. The member 15 may operate a shutter controlling the lift falling on a photo-electric device, the signals from which are measured by a Wheatstone's bridge. Alternatively the vibrations may be detected by a potentiometer or a variable capacitance operable by member 15.
Patent GB-1323634-A (GB)
Title: Process and vat for straining wort
IPC: C12C7/17
Filed: 1971-07-16
Abstract: 1323634 A vat for straining wort and draft C LENZ 16 July 1971 [20 July 1970] 33540/71 Heading B1D [Also in Division C6] A vat for separating wort from draft comprises an inner chamber defined by a perforated bottom 18 of horizontal triangular sections arranged in circular fashion, and a perforated side wall defined by arcuate sections 32. Independently operable wort outlets 54 and 28 allow the initial straining of wort through both and later straining through 28 only. The wall sections are removably mounted and may be sealed at their junctures by plates or by their overlapping edges.
Patent GB-360194-A (GB)
Title: Aircraft with variable supporting surfaces
IPC: B64C3/54
Filed: 1930-11-07
Abstract: 360,194. Aircraft planes. MAKHONINE, I., 11, Rue Bremontier, Paris. Nov. 7, 1930, No. 33600. Convention date, May 15. [Class 4.] An aeroplane with telescoping wings has' the extending part mounted to slide, with interposed rollers, over a rigid cantilevered structure arranged within the fixed portion of the wing and of substantial area of cross section compared with the extending part. The structure comprises a strongly braced box girder 4 having horizontal and vertical rollers 6, 9 on its front and rear faces which engage rails 7, 10 on the movable wing 3 which encloses the girder 4 when retracted. In the Specification as open to inspection under Sect. 91 (3) (a), Specification 349,879 is referred to. This reference does not occur in the Specification as accepted.
Patent GB-410856-A (GB)
Title: An improved driving-wheel for agricultural machines
IPC: B60B15/02
Filed: 1932-11-28
Abstract: 410,856. Vehicle wheels. DARBY, S. C., 1, Station Avenue, Wickford, Essex. Nov. 28, 1932, No. 33604. [Class 144 (i).] The perimeter of a driving-wheel for agricultural machines consists of oppositely-facing land-grips a riveted to carrier plates c, e, these parts being bolted to segmental plates g to which the spokes n are riveted.
Patent GB-872917-A (GB)
Title: Improvements relating to braking arrangements for railway vehicles
Inventor: BALDWIN TOM
IPC: B60T13/46
Filed: 1958-10-21
Abstract: 872,917. Fluid-pressure brakes. BRITISH TRANSPORT COMMISSION. Oct. 20, 1959 [Oct. 21, 1958], No. 33615/58. Class 103 (1). In a vacuum braking system for railway vehicles there is provided in conjunction a valve device sensitive to the rate of brake application, no spill-back being permitted upon a slow partial brake application, and a copyvalve device which ensures that the brake cylinder vacuum copies the vacuum in a reservoir in controlled communication with the train pipe. The valve device comprises a valve 10 operatively associated with a diaphragm 8 and with spring means 9 tending to hold the valve closed, the space 11 and 14, on opposite sides of the diaphragm 8 connecting respectively with the train pipe 6 directly and by way of a choke 15. Thus on a partial brake application, it can be arranged that the pressure difference across diaphragm 8 is sufficient to open valve 10, but in the case of an emergency application, for instance exceeding 8 inches of mercury per second, the valve 10 will be opened to allow inlet of atmospheric air to boost the pressure acting in the chamber below diaphragm 8 of the copy or relay valve device 3. Preferably, the valve should be able to discriminate, so as not to open valve 10 if the partial application rate is not more than at most 1¢ inch mercury per second.
Patent GB-335790-A (GB)
Title: Improvements in electric meters of ferraris type
IPC: G01R11/36
Filed: 1929-11-05
Abstract: 335,790. Telefonaktiebolaget, L. M. Ericsson. March 7, 1929, [Convention date]. Supply meters.-In order to enable the strength of the voltage field to be increased without causing excessive internal losses in the meter, the three-legged voltage core is formed of two bundles of laminations, one forming the central leg and the other a closed frame to which the central leg is detachably secured, this leg being held in position by magnetic shunts. As shown in Fig. 2, the magnet system comprises a U-shaped current magnet 1 and a voltage magnet comprising two bundles of laminations 2, 3. The laminations 2 are in the shape of a closed frame of which the sides 4, 5 form the two outer legs of the magnet and a third side forms a polepiece 6 below the rotor disc. The laminations 3 form the central leg of the voltage magnet carrying the voltage winding 18, and are arranged with their planes at right angles to the planes of the laminations 2. The laminations 3 are shaped as shown in Fig. 5 with a yoke-shaped part 8 surrounding the edge of the rotor disc and a part 9 forming a polepiece above the rotor disc and facing the polepiece 6. The central leg 3 is inserted in a recess 19 in the frame 2 and is held by plates 20 and by tapered projections of the laminae 2 forming magnetic shunts. The polepiece 6 may be divided at its centre by a small airgap. The brass or other non-magnetic member 27 forced in between the polepiece 6 and the magnetic shunts 24, 25 carries a magnetic arm 26 which can be adjusted by a screw to compensate for frictional resistance.
Patent GB-749033-A (GB)
Title: Improvements relating to automatic control valves for variable load braking apparatus for vehicles
IPC: B60T8/18
Filed: 1953-12-04
Abstract: 749,033. Vacuum brake apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and SIMMONS, A. W. Nov. 2, 1954 [Dec. 4, 1953], No. 33788/53. Class 103 (1). In vacuum braking apparatus for vehicles comprising brake cylinders having upper and lower chambers under vacuum at brake release and of which the vacuum in the lower chamber is reduced to apply the brake, it is arranged that the vacuum in both chambers shall be varied according to the vehicle load. In the drawing the vacuum brake pipe is connected at A, the brake cylinder lower chamber at B, and the brake cylinder upper chamber at C. When a vehicle is loaded this has the effect, through leaf-spring 34 and damper unit 27, of raising the valve 4 off its seat 5 so that vacuum is created by the brake pipe acting through passage 1 in the chambers 7 and 37, which are connected by passage 36, and the upper and lower brake cylinder chambers connected at C and B. The vacuum in chamber 7 acting below diaphragm 6 tends to close the valve 4 so that the degree of vacuum is regulated according to the vehicle loading through spring member 34. When to initiate a brake application the vacuum in brake pipe A is reduced, the increased pressure acts through choke 18 in chamber 19 to raise diaphragm 20 so as to shut valve 22 and cut off the brake-cylinder upper chamber connected at C. The increased pressure is also transmitted through passage 2 and past valve 17 to raise the pressure in chamber 37 and thus also in the brake cylinder lower chamber through connection B so as to cause a brake application.
Patent GB-903945-A (GB)
Title: Improvements in or relating to gas-turbine engines
Inventor: ROBERTS DEREK AUBREY
IPC: F01D21/04
Filed: 1957-10-29
Abstract: 903,945. Gas turbine plant; engine stop-gear. ROLLS-ROYCE Ltd. Oct. 23, 1958 [Oct. 29, 1957], No. 33794/57. Classes 110 (3) and 122 (4). In a gas turbine engine of the kind comprising a turbine rotor connected by a driving shaft to a coaxial driven member, such as a compressor rotor or the reduction gear of a propeller or both, there is provided means connected with the engine rotor assembly adjacent the ends of the driving shaft so as to rotate therewith, the means including a part which is displaced axially by the relative rotation of the ends of the driving shaft on failure thereof, a pressure-fluid-containing member which is fractured on such axial displacement and pressure-responsive means operated by fall of pressure within the pressure.' fluid-containing member and operative to cut off or reduce the fuel supply to the engine so as to prevent overspeeding of the turbine. The gas turbine engine shown comprises an H.P. turbine 13 driving an H.P. compressor 11 through a hollow shaft 15, and an L.P. turbine 14 driving an L.P. compressor 10 through a hollow shaft 16 and also driving the high-speed pinion 17 of an airscrew reduction gear through a shaft 16a. A spindle 26 is splined at one end to the pinion 17 and at the other end to a sleeve 29 having a coarse-pitch threaded engagement with the H.P. turbine rotor hub. If either of the shaft 16, 16a fails, the H.P. turbine rotor over-runs the sleeve 29, and the threaded engagement causes the sleeve 29 to move axially rearwardly, striking and fracturing a capsule 32. This causes pressure liquid to escape from the capsule 32 and from a pipe 33 and bellows 34 connected thereto. The bellows 34 thereupon collapses and allows a spring 36 to move a valve member 35a to a position in which the supply of fuel through pipes 21, 22 to injectors 25 is cut off, the downstream portions of the pipes 21, 22 being then connected to drain pipes 42. The end chambers 37, 38 of the valve are vented to the drain pipes 42 through pipes 37a, 38a; alternatively, the end chambers may be interconnected by a duct running through the valve member 35a. In a modification, the capsule 32, pipe 33 and bellows 34 are filled with gas instead of liquid, and the spring 36 is replaced by a further bellows filled with the same kind of gas to provide a temperaturecompensating effect. For the same purpose, a further pipe and capsule may be connected to the further bellows, the further capsule being located near capsule 32 but in a position where it would not be fractured on shaft failure. Instead of acting directly on the valve member 35a, the bellows 34 may be arranged to release a catch holding the valve member 35a in its normal position. Instead of controlling a fuel valve, the bellows 34 may act through a servomotor to move the swashplate of a multiplunger fuel pump to reduce the pump delivery. Reference has been directed by the Comptroller to Specification 843,479.
Patent GB-1328306-A (GB)
Title: Sand mould forming device
IPC: B22C15/12
Filed: 1971-07-19
Abstract: 1328306 Foundry moulding machines SPO Inc 19 July 1971 [20 July 1970] 33796/71 Heading B3F A foundry moulding machine comprises a pressure head 3 and a flask-carrier 8 relatively movable towards and away from each other along a vertical axis to compress sand 10 in a flask 7 by means of retractable peen feet 6 mounted by peen pistons 5 in a cylinder manifold 11 attached to the pressure head 3. Before sand compression hydraulic fluid 19 from a reservoir 17 is supplied to the cylinder manifold through a check valve 14 to move the peen feet 6 to their lowermost positions. During pressing the peen feet enter the sand 10 to different heights in the flask 7 and compress the sand uniformly as the hydraulic fluid in the cylinder manifold cannot escape through check valve 14. At a preset maximum pressure the hydraulic fluid in the cylinder manifold 11 is released by a return valve 15.
Patent GB-1475800-A (GB)
Title: Telephone transmission system
IPC: H04M19/08
Filed: 1974-07-31
Abstract: 1475800 Substation apparatus RELIANCE TELECOMMUNICATION ELECTRONICS CO 31 July 1974 [18 Sept 1973] 33805/74 ing H4K An arrangement for charging a local battery from the exchange over a subscriber line includes means to disconnect the battery from the line whenever the line voltage is below a predetermined level and prevent reconnection for a predetermined time thereafter. As shown local battery 34 for powering a loud-speaker amplifier 42, a ringer or a subscriber carrier system is normally charged from the line 26, 28 via a low pass filter 48, bridge 50 a normally conductive transistor Q2 and a battery charger 36. A capacitor C2 is also charged at this time to a level set by Zener 64. If the line voltage drops due to the subscriber going off-hook or the effect of a line insulation test carried out by equipment 82 at the exchange the potential applied to the gate electrode of a programmable unijunction transistor 52 drops below its anode voltage which is set by Zener 64. Transistor 52 switches to conduction connecting a second smaller capacitor C3 in parallel with C2 and completing a current path via resistors R3 to R5. As a result Q1 turns on blocking Q2 thus disconnecting the battery charger from line until after the line potential is restored. Reconnection is delayed for 30 seconds by the charge on C3 to avoid response to dial impulse loop breaks and to avoid current being drawn from the line during insulation tests.
Patent GB-509049-A (GB)
Title: Improvements in and adapted to snap action mechanism
IPC: H01H5/06
Filed: 1937-12-07
Abstract: 509,049. Engine valve-gear; linkwork ; switches. TRIGGS, W. W. (Trico Products Corporation).' Dec. 7, 1937, No. 33809. [Class 122 (ii)] [Also in Groups XXIV and XXXVII] Comprises an improved snap-action mechanism for operating valves &c. and comprises a normally bowed spring which is moved to an oppositely-bowed position with a sinuous whipping action by means adjacent one end to operate an element towards the opposite end thereof. In the motor shown, pistons 13 through rack and quadrant mechanism oscillate a power shaft 17 which may actuate a windshield cleaner, fuel pump, &c. Fluid distribution is effected by a spring-operated valve provided with projections 9, 10 which engage a motion-limit stop 8. The spring 11, bowed in compression, is pivoted at its ends on pins 16, 18. A guide plate 19 retains the spring action to a plane parallel with the piston-rod axis. Spaced shoulders 20 on the rod actuate the spring which in turn engages shoulders 21 on the valve to effect its reversal. The pin 18 is mounted on the plate 19 which may be moved to one side to arrest the action of the motor by a wire connected to an eye 24. A modification is described in which the spring is pivoted at one end and has a projection which engages a seat in a stopping member.
Patent GB-789410-A (GB)
Title: Improvements in devices for deflecting the jet formed by a jet propulsion nozzle
Inventor: MEULIEN HENRI LOUIS PAUL
IPC: B64D33/04
Filed: 1955-11-25
Abstract: 789,410. Jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 25, 1955 [Nov. 29, 1954], No. 33885/55. Class 110 (3). [Also in Group XXXIII] In a jet-propelled aircraft wherein the jet gases are deflected laterally or forwardly by a grid or grids of curved blades for controlling or braking purposes, the blades or the jet pipe cowling are rotated relatively about an axis coincident with, or axes parallel to, the axis of the jet pipe. In one embodiment the jet pipe cowling 1 carries curved extensions 2, 3 which enclose respectively sets of curved blades 2a, 2b and 3a, 3b. The blades 2a are secured to end-plates 4a, 4<SP>1</SP>a and blades 2b to plates 4b, 4<SP>1</SP>b, each plate being connected to a ring 5a having a toothed periphery 6a. Blades 3a and 3b are connected in a similar manner to a toothed ring 5b, the rings meshing with pinions 7a and 7b respectively, whereby they are rotated simultaneously in opposite directions about the axis of the jet pipe. The mounting for the plates supporting the curved blades comprises rollers 12 on each plate co-operating with a circular track 10. In normal flight the curved blades are rotated to stowed positions within the extensions 2, 3 and when it is necessary to deflect the jet gases the pinions 7a, 7b are driven to rotate the blades to the positions shown in Fig. 2 and a deflector baffle (not shown) within the jet pipe is rotated about a diametral axis to deflect the gases through the curved blades. Ports 15 are formed in the extensions 2 and 3 and when the blades are retracted the ports are closed by extension plates 14a. Movement of the blades to the positions shown in Fig. 2 uncovers the ports and allows a stream of air to enter the jet pipe to fill the wake-zone formed on the downstream side of the deflector baffle. In a further embodiment (Figs. 5-7, not shown) the deflector blades are fixed and the curved extensions 2, 3 are rotated to expose the blades. In an embodiment applied to a two-engineaircraft there is a single curved extension for each jet pipe and a single deflector baffle movable radially inwards of the jet pipe from a common control within the fuselage whereby the jet gases can be deflected in one direction only away from the fuselage. In a still further embodiment (Figs. 10-12, not shown), the deflecting arrangement comprises a plurality of part - cylindrical members circumferentially arranged round the jet pipe for rotation each about an axis parallel to the axis of the jet pipe. Each part-cylindrical member contains curved blades and all members are driven from a common gear from an inoperative position in which the baffles are masked to positions in which they are aligned with ports in the wall of the jet pipe. In another embodiment (Figs. 13, 14, not shown) the curved blades are fixed and exposed by a plurality of overlapping shutters, each mounted for rotation about an axis parallel to the axis of the jet pipe.
Patent GB-362124-A (GB)
Title: Improvements in or relating to magnetic separating apparatus
IPC: B03C1/16
Filed: 1930-11-11
Abstract: 362,124. Magnetic s e p a r a t o r s. GENERAL ELECTRIC CO., Magnet House, Kingsway, London, and KRAMER, J. B., of Witton Kramer Electric Tool & Hoist Works, Witton, Birmingham. Nov. 11, 1930, No. 33905. [Class 72.] In a magnetic separator of the type in which the material to be treated is carried by a belt 1 over a magnetic pulley 2, the iron &c. adhering to the band, after the non-magnetic material has dropped off, is removed by soft iron plates 7 mounted on pivots 8 carried by a hub 5 mounted in bearings on shafts 6, the latter being driven from the pulley shaft 3. The plates 7 are as wide as the pulley 2 and are held in position by spring-controlled bolts 11 passing through the plates and screwed into projections 9 on the hub 5. The iron &c. removed by the plates 7 is dropped into the shoot 4, the plates when over the shoot losing their magnetization. In a modification, Fig. 2, a soft iron bar 17 is carried by two arms 18 pivoted on pins 20 extending from two levers 19 which are pivoted at 25 to a fixed frame (not shown). The bar 17 is oscillated by an eccentric 26 mounted on reduced parts 27 of the pulley shaft 3, the rods 28 pivotally engaging the pins 20. The arms 18 are kept in the normal position by springs 23 encircling bolts 21 which pass through slots 22 in the arms 18 and are screwed into the levers 19.