baber/WOPTO huggingface dataset:
Patent GB-578500-A (GB)
Title: Improvements in fluid pressure systems for operating brakes and other devices
IPC: F15B17/00
Filed: 1944-11-28
Abstract: 578,500. Fluid-pressure brakes. BENDIX AVIATION CORPORATION. Nov. 28, 1944, No. 23739. Convention date, April 19. [Class 103 (i)] Relates to hydraulically operated brake or other systems comprising a piston operated by the hydraulic pressure from a manually operated master cylinder and slidable within the plunger of a second but power operated master cylinder' connected to the brake operating cylinder and in which a passage through the piston normally open to connect the manual master cylinder with the power master cylinder is closed by a valve during the power stroke. According to the invention means are provided for biassing the valve to closed position and for preventing binding between the piston and plunger. As shown, cylinders 16, 22 are connected at 20, 26 respectively to a pedal operated master cylinder and to a brake cylinder. In the cylinder 22 is a tubular piston 36 which is secured to the diaphragm 34 of a pneumatic booster device the casing 28, 30 of which is bolted to the cylinders. A stepped plunger has a part 40 slidable in the piston 36 and a part 38 of larger diameter slidable in the cylinder 16. The booster chamber 46 is connected by pipe 44 to a low pressure source such as the intake manifold of a vehicle engine and a high pressure source such as atmosphere or a compressed air supply is connected by pipes 48, 50 to the chamber of a valve 56 carried by the diaphragm 34 which also carries a valve 54 which normally connects the booster chambers 46,52. The valves are operated to produce a follow-up action by a floating member 58 engaging a shoulder on the plunger. So that a single reservoir may serve for the hydraulic system the cylinder 22 normally communicates with the cylinder 16 and thus with the reservoir of the manual master cylinder through a passage 60 in the plunger. This passage is controlled by a valve 62 normally held open as shown by a rod 66 and to ensure that it closes' as soon as the rod 66 leaves the cylinder wall it may be acted upon by a spring 68 or the apparatus may be arranged with the plunger vertical and the valve at the upper end thereof. The bearing 76 between the plunger and piston is of short axial length so as to permit slight angular movements of the plunger axis to accommodate possible misalignment of the cylinders 16, 22 and thus prevent binding of the plunger in the piston.
Patent GB-460304-A (GB)
Title: Improvements in and relating to the lighting of road vehicles
IPC: F21V11/00
Filed: 1935-08-24
Abstract: 460,304. Vehicle headlights. STEEL, J. G. Aug. 24, 1935, No. 23744. [Classes 75 (iii) and 75 (iv)] One or more headlights f are provided in the rear end of a housing b with light-reflecting walls secured on the forward side of the dash under the bonnet and projecting forwardly of the bonnet through or over the radiator, the front wall of the housing being formed by a pivoted shield h for directing the light on to the roadway. The shield h is adjustable by means of screws h<2> extending through slots in the wings h<1> and may be removable. As shown, the housing b is provided with a glass panel g and is carried from the side walls c of the bonnet by sheet metal members d, the lamps being mounted in a casing e held in the housing b by ears e<1> fitting over screw studs d<1> with nuts d<2>. The lamps may be tilted slightly downwards. The housing for a single lamp may enlarge in diameter towards the front of the vehicle. According to the Provisional Specification, the lamps may be arranged in tubes, which may merge into one another at the front, the upper part of the light beams being directed on to the roadway by a fixed or movable reflector.
Patent GB-639948-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01D11/16
Filed: 1947-08-27
Abstract: 639,948. Indicating-instruments. SANGAMO WESTON, Ltd. Aug. 27, 1947, No. 23768. Convention date, Dec. 10, 1946. [Class 106 (iv)] A device for correcting the zero position of the moving system of a hermetically-sealed electrical measuring instrument comprises a stud seated in an opening in the instrument case, rotary movement of the stud for effecting correction being transmitted by a member passing through a yieldable but impervious tubular device sealed at one end to the instrument casing and closed at its other end. An electrical measuring instrument comprises a coil 2 supported by staffs 3 in jewelled bearings 4 so as to rotate according to variations of current between the pole-pieces of a horseshoe magnet 1 and indicate through a pointer 5 against a scale 6. The instrument is housed in a case 11 closed by a transparent plate 12 hermetically sealed thereto by a ring of solder 13. The case may be in two parts hermetically sealed by a lap joint 14 and electrical connections to the coil 2 may be by terminal studs 15 hermetically sealed in the end wall of the casing 11. A spiral return spring 8 is fixed at one end to the staff 3 and at its other to a tongue 10a of a spring abutment 10 having an extension 10b with a slot 10c therein. Small adjustments of zero are made by turning a stud 19 bearing in an opening 20 in the glass 12 and held by a screw 22 and plate 23. A hemispherical socket 24 offset from the axis of the stud receives the ball end of a pin 25 hermetically sealed at 30 to the centre of a plate 29 which forms the end of a metallic bellows 26 hermetically sealed at its other end to a ring 27 sealed to the glass round the opening 20. As the stud 19 is turned the lower end of the pin 25 rotates and working in the slot 10c effects the required adjustment to the return spring.
Patent GB-829955-A (GB)
Title: Spraying valve for containers of substances with a volatile propellant
IPC: B65D83/14
Filed: 1956-08-01
Abstract: 829,955. Forcing liquids by gaseous pressure. GALEAZZI, F. Aug. 1, 1956 [Aug. 12, 1955], No. 23773/56. Class 102(2). [Also in Group XXIX] A valve for spraying liquids contained in a vessel 1 together with a volatile propellant comprises a resilient member 3 having a flange 4 which is secured to the container by tightening means 5. The member 3 is provided with a bore having an upper larger diameter portion 6 and a lower smaller diameter portion 7 in which is fixed a tube 17 extending to the bottom of the container. A rigid tubular member 8, having a flange 12 pressed lightly into contact with member 3 by the tightening means 5, extends into the bore 8 and has a projection 14 which fits into the smaller bore 7 forming a liquid seal. The lower part of the tubular member 8 has a downwardly projecting rim 10 and is pierced by an orifice 11 while a spray nozzle 15 is attached to the upper part. To discharge the liquid from the container the member 8 is tilted and the projection 14 deforms the bore 7 of the resilient member 3 allowing liquid to pass from the container, through the orifice 11 and out of the nozzle.
Patent GB-237462-A (GB)
Title: Improvements in hand signal lamps for railway or other purposes, especially adapted for locomotive head lights
IPC: B61L15/02
Filed: 1924-10-09
Abstract: 237,462. Griffin, J. Oct. 9, 1924. Lantern shutters.-In a hand signal lamp adapted to display different coloured lights, more particularly for use as a locomotive headlight, the movable colour screens are formed from a series of plane narrow rectangular strips of coloured glass carried in light sheet-metal sockets which are hingedly connected to each other. The front a, which may be the front of the lamp or a separate fitting adapted to be attached to an existing cylindrical or rectangular lamp casing, is provided with an extension b carrying a colourless lens and with two vertically cylindrical chambers c in which are mounted cylinders e adapted to be rotated by milled by like. projecting caps g. The sockets for the red and green glass strips h. h<1> are hinged at j, the end sockets being, secured by hinges k to the rotatable cylinders e, so that upon turning one of the caps g one set of coloured glass strips is forced through one of the apertures d in the chambers c across the rear of the colourless lens and is guided by a raised metal strip l. The coloured glass strips may be secured in the exposed or withdrawn positions by means of spring-pressed bullet catches m projecting into notches o in the caps g.
Patent GB-259211-A (GB)
Title: An improved metal for bearings
IPC: C22C11/02
Filed: 1926-09-28
Abstract: 259,211. Mathesius, W., and Neufeld, M. W. Oct. 1, 1925, [Convention date]. Alloys. - A lead alloy for bearings contains approximately 0.5 per cent of calcium, 0.5 per cent of sodium. 0.1 per cent of barium, 0.1 per cent of magnesium, and 0.04 per cent of aluminium.
Patent GB-1218526-A (GB)
Title: Steering and braking system for self-laying track vehicles
IPC: B60T13/18
Filed: 1969-05-12
Abstract: 1,218,526. Controlling vehicles. MASSEYFEKGUSON SERVICES N.V. 12 May, 1969 [24 May, 1968], No. 24013/69. Heading B7H. A steering and braking system, for an endless track vehicle with steering clutches and brakes, comprises a pair of manual control valves 5 each movable from a first rest position (Fig. 1) successively to a position for initiating movement of a respective hydraulic de-clutch actuator 55 and subsequently to a position for applying a brake 62, and a single sequencing pilot-operated relief valve 1 having a pilot pressure connection 46 to the de-clutch actuator, a connection 2 to a high pressure oil source and a connection 19, 20, 25 and 26 or 27 to a brake actuator 59 constituting a first spill passage from the valve 1. On starting the pump 3, with the valve 5 in the rest position, pressure builds up in the chamber 44 moving the stepped valve plunger 29 to the left until an annulus 21 in a sleeve 11 is uncovered permitting spillage of oil through passages 22, 23 to a reservoir. On movement of the control valve plunger 70 to the left, the gallery 75 bridges galleries 52, 53 allowing oil to flow from pump pressure bore 6 of the valve 1 through pipe 9 to operate the de-clutch actuator 55 and thence through a pipe 46 to a pressure sensing space 43 of the valve 1. The pressure in the space 43 acts on the large end of the plunger 29 to move it to the right until it covers the exhaust passage 22 and partially covers the holes (15) (Fig. 5, not shown) and 18, increasing the pressure in the space 44 until a balance is obtained between the pressures on the ends of the plunger 29 and the plunger 37 is moved to the right permitting the oil to exhaust through passages 38, 42, 34 and 35. Meantime gallery 74 is in register with the gallery 58 permitting the space 44 to vent through the holes 15, pipe 26, gallery 58 and passages 71, 72, 63 in the plunger 70 and brake actuator 59. On further leftward movement of the plunger 70 the plunger nose 77 abuts the actuator 59 to operate the brake directly and to permit a pressure build-up in the interior of the actuator 59, thereby urging it to the left. This increasing pressure acting on the nose 77 is communicated to the driver.
Patent GB-729159-A (GB)
Title: Improvements in and relating to apparatus for controlling the angular rotation of electric motors
Inventor: JEFFERSON HAROLD FEARNSIDE
IPC: H02P5/46
Filed: 1952-09-25
Abstract: Relates to a system similar to that described in Specification 708,723 wherein materials for road-making are mixed by extracting predetermined amounts of each material from different bins, each bin having its outlet regulated by a paddle driven by an electric motor. In the prior arrangement, each motor is controlled by a combination selector switch, formed by a number of manually-operated change-over switches, for setting up the amount of angular rotation to be performed by the motor, and this switch arrangement co-operates with a uniselector switch of the Post Office type adapted for self-stopping operation or actuation by impulses derived from a motor-driven contact.  The uniselectors individual to each motor are now replaced by a single uniselector which controls the motors in turn by means of a further selector switch, so that, when the uniselector has completed its operation in connection with one bin, it delivers an impulse to the further switch for operation of the next bin.  Means may be provided to prevent operation when the total amount set on the combination selector switches does not correspond with a full batch.
Patent GB-731227-A (GB)
Title: Supporting means for band conveyors adapted for longwall workings in mines
IPC: E21F13/06
Filed: 1953-09-01
Abstract: 731,227. Supporting conveyer belts in mines. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI, GEB. Sept. 1, 1953 [Sept. 13, 1952], No. 24089/53. Class 78 (1). A support for the return upper run 19 of a belt conveyer used in longwall mine working comprises a plurality of sleeves 9 each detachably secured by a stirrup-shaped bracket 10 to one of a row of pit props. The bracket is permanently fastened to the sleeve and is secured to the prop by a wedge 12 driven through openings in its sides. Slidably mounted in the sleeve is a beam 14 of greater length to which is secured a lug 15 provided with a tongue 16. This tongue engages in the channel of a roof-bar 8 carried by the props and is secured to the bar by a lug 17, secured by a chain 18 to the tongue, engaging in aligned apertures in the bar and tongue. When a cutting operation in the seam 2 has been completed, the tongue is freed from the bar 8 and the beam turned in the sleeve so that the lug. 15 hangs downward. An additional bar is then rigidly secured to the bar 8 and the beam 14 moved longitudinally in the sleeve to enable the tongue 16 to be secured to the free end of this .new bar 8. When all these additional bars have been erected and the beams 14 secured to their free ends, the terminal drums of the belt are moved to their new. positions adjacent the now coal face and the driving mechanism restarted whereby the band moves towards the new coal face on the beams 14. A new prop is now placed under each overhanging bar 8 and the brackets 10 removed by knocking out their wedges 12 and mounted on the newly erected props, the sleeves 9 in this operation sliding under the upper belt run 19 and over the projecting portion of the beam.
Patent GB-684719-A (GB)
Title: Improvements relating to the tops of cycle saddles
Inventor: BLEKSLEY HERBERT REGINALD
IPC: B62J1/02
Filed: 1950-10-03
Abstract: 684,719. Cycle saddles. BROOKS & CO., Ltd., J. B. July 30, 1951 [Oct. 3, 1950], No. 24112/50. Class 136 (iii) A compartment 7 for tools or other articles is formed within the contour of a cycle saddle top 1. The saddle top is moulded from flexible plastic such as polyvinyl chloride and has a triangular seat portion 2 with integral depending sides 3 and an outwardly curved depending rear wall 5. The wall 5 forms an outer wall of the tool compartment 7 which is completed by an inner wall 6 and by a bottom part 8. To permit access to the compartment, a transverse opening 10 is formed in the wall 5 and closed by a sliding clasp fastener 12.
Patent GB-1392618-A (GB)
Title: Abrasive material
Inventor: ROWSE R A
IPC: C09K3/14
Filed: 1972-05-23
Abstract: 1392618 Abrasive material NORTON CO 23 May 1972 [3 June 1971] 24127/72 Heading C4V An abrasive material consists of grits comprising a eutectic alumina-zirconia mixture wherein the alumina-zirconia eutectic is in colonies, the colonies including zirconia in microcrystalline, oriented rod form in which the average maximum diameter of the rods is not greater than 200 Angstroms and the minimum diameter is 100 Angstroms, the zirconia content of the abrasive material being from 35-50% by weight. The materials may be obtained by fusing a mixture of alumina and zirconia containing from 35-50% zirconia by weight and cooling the mixture, the cooling being sufficiently rapid to obtain the above material. The eutectic colonies may have at the boundaries thereof impurities of metals, metal oxides and metal carbides and mixtures thereof and the maximum diameter may be not greater than 100 Angstroms. 25% of the weight of the zirconia may be in a tetragonal crystal form. The material may be used to obtain grinding wheels or may be bonded to flexible backing materials. Reference has been directed by the Comptroller to Specifications 1,323,282 and 1,358,620.
Patent GB-922537-A (GB)
Title: Improvements in or relating to devices comprising a cathode-ray tube
IPC: H01J29/52
Filed: 1959-07-14
Abstract: 922,537. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 14, 1959 [July 17, 1958], No. 24166/59. Class 39 (1). A device comprising a cathode-ray tube having an electron gun constituted by at least a cathode 6, a control grid 7, and a first anode 8 in which steps are taken to increase the slope of the modulation characteristic curve, and in which, in the gun itself, the control voltages applied also control one or more auxiliary electron currents 11 which strike parts 12 of the first anode, the secondary-emission factor of these parts being higher than unity and the secondary electrons being discharged by a positive auxiliary electrode 13.
Patent GB-1241116-A (GB)
Title: Sterilization of materials containing protein
Inventor: STEWART AUBREY P JR
IPC: A61L2/00
Filed: 1969-05-12
Abstract: 1,241,116. Sterilization of proteincontaining liquids. ALLIED CHEMICAL CORP. 12 May, 1969 [21 May, 1968], No. 24183/69. Heading A2D. Liquid protein-containing material that coagulates at above 61C, is sterilized by diluting the material with water at 4-20 times its initial volume, and heating at a temperature above the coagulation temperature sufficent to sterilize the material, for a time sufficient to sterilize but insufficient to cause substantial coagulation of the protein. The sterilized liquid may be reconcentrated by evaporation of water at a temperature such that no coagulation occurs. The sterilized liquid may be homogenised and asceptically packed. The protein-containing material may be liquid egg, a mixture of liquid egg and milk, blood plasma or serum.
Patent GB-1176214-A (GB)
Title: Improvements in and relating to Electric Signal Processing Devices
Inventor: GARGINI ERIC JOHN
IPC: H04B7/155
Filed: 1967-05-25
Abstract: 1,176,214. Amplitude modulation. COMMUNICATIONS PATENTS Ltd. 3 May, 1968 [25 May, 1967], No. 24398/67. Heading H3R. An electrical signal processing device comprises input and output terminals, means for deriving from an amplitude modulated signal passing between the input and output terminals a modulation component, and means establishing a signal path between the input and output terminals which includes a beam deflection tube by means of which amplitude modulation of the signals passing along the signal path is effected by the said modulation components. In a highfrequency wired television broadcasting system, the arrangement is used to compensate for loss of higher modulation frequencies due to trap circuits. Signals from input terminal 1 are applied via cascaded amplifiers 5, 7 and delay network 6 to a modulator 8, comprising a beam deflection tube. The output from amplifier 5 is also applied via further amplifier 11 to a demodulator 12, the output of which comprises the video signals, which are passed via a lowpass filter 14 to remove any colour components, to an amplifier 15. Amplifier 15 is arranged to remove any sync. pulses and its output is passed to a differentiating circuit 16 to provide signals only representing video transients. These are passed via amplifier 18 to a level selecting device 19 which provides on output line 20 only those portions of the differentiated video signal which lie between predetermined amplitude limits, so as to eliminate unwanted noise components. The output on line 20 is passed via an adjustable attenuator 21 to modulator 8 to provide further modulation of the signal. The output from amplifier 15 may in addition be applied to an echo equalizing device 24 and thence to the modulator 8 via filter 27 which removes video components and also provides an impedance match.
Patent GB-1066003-A (GB)
Title: A process for producing sodium carbonate from sodium bicarbonate obtained by the ammonia-soda process
IPC: C09K23/00
Filed: 1965-06-09
Abstract: Na2CO3 is produced by heating in two or more steps, NaHCO3 from the ammonia-soda process, at least the first step being carried out in a fluidized bed in which the fluidizing stream is loaded with fine water droplets.  The fluidizing stream may contain steam, e.g. a mixture of air and steam in which a mist is produced by pressure and/or tenperature change.  The temperature of the first step may be not higher than 140 DEG  C.  An apparatus is disclosed, the Figure (not shown), wherein soda ash and NaHCO3 are fed from a conduit (3) to a fluidized-bed chamber (1), the temperature of which may be maintained by a steam-heated coil (7).  Part of the product flows through over-flow pipe (9) to a fluidizing chamber (2) wherein the product is calcined by a dry gas, e.g. lime kiln gas or air.
Patent GB-980948-A (GB)
Title: Improvements in railway vehicle brake control equipment
Inventor: BULL IVOR HENRY
IPC: B60T13/66
Filed: 1961-07-06
Abstract: 980,948. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. May 23, 1962 [July 6, 1961], No. 24475/61. Heading F2F. In an electropneumatic/pneumatic compressed air braking system of the kind having a magnet valve which is normally maintained energized to cut out the pneumatic system so that braking is effected electropneumatically, but which on failure of the current supply connects a pilot valve associated with the driver's valve and also an accelerator bulb to a compensating reservoir so that a pneumatic braking action corresponding to the position of the driver's valve is initiated by means of a triple valve, the magnet valve is associated with first and second check valves such that when the magnet valve is energized the first check valve allows compressed air to pass from the pilot valve to the compensating valve but prevents reverse flow, the bulb being exhausted to atmosphere by the magnet valve, and when the magnet valve is de-energized to connect the bulb to the compensating reservoir the second check valve allows flow of air from the compensating reservoir to the pilot valve. As shown, in an electropneumatic/pneumatic braking system having a driver's valve which in any position selects both an electropneumatic and, by means of the pilot valve, a corresponding pneumatic braking operation, the pneumatic braking operation is normally prevented by magnet valve 11 the armature 21 of which carries a valve element 23 closing a valve opening 25 so long as current passes through the windings 20. At the same time a valve element 22 is clear of an exhaust opening 29 so that a bulb connected to passage 19 is exhausted. Valve element 23 prevents exhaust of fluid from the equalizing reservoir which is connected to passage 18, while air can pass via the first check valve 12 from the pilot valve, connected to passage 17, to the compensating reservoir to maintain the latter charged. When the magnet valve drops out, as shown, exhaust opening 29 is closed and passages 17, 18, 19 are interconnected, the second check valve 13 ensuring that air can flow from the compensating reservoir to the pilot valve, after initial reduction of pressure caused by the bulb, in addition to its being able to flow from the pilot valve to the compensating reservoir via the first check valve.