baber/WOPTO huggingface dataset:
Patent GB-1262866-A (GB)
Title: Vehicle levelling systems
Inventor: WENHAM GRAHAM JOHN
IPC: B60G17/04
Filed: 1968-06-06
Abstract: 1,262,866. Height levelling of vehicle bodies. GIRLING Ltd. 16 May, 1969 [6 June, 1968], No. 27032/68. Heading B7D. An automatic pneumatic vehicle levelling system comprises a motor/compressor/dryer 1 which draws air through a non-return valve 7 and dryer section 8 and supplies compressed air to a reservoir 2, a switch 2 cutting off the motor when a preset pressure in the reservoir is reached, and wherein a height-sensing valve 4 allows air to be supplied to vehicle levelling struts 5 from the reservoir or causes air to be expelled from the struts to maintain the vehicle level. The switch 2 cuts in the motor after the pressure in the reservoir has dropped by 25-30 p.s.i.; by means of a constant height hysteresis switch mechanism incorporating Bourdon tube actuation. The valve 4 is operable to ensure that the air pressure in the struts does not drop below a specified minimum value.
Patent GB-373900-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J33/00
Filed: 1931-09-29
Abstract: 373,900. Cathode-ray tubes. MLLER AKT.-GES. C. H. F., 24, F³hlsb³ttelerdamm, F³hlsb³ttel, Hamburg, Germany. Sept. 29, 1931, No. 27102. Convention date, Oct. 10, 1930.. [Class 39 (i).] A tubular metal member, insulated from the cathode and from a perforated anode, is arranged in front of the aperture in the anode and has at the end remote from the anode, a window forming part of the envelope. As shown in Fig. 1, the anode consists of a metal ring 13 in a cylinder 2 sealed to glass portions 1 of the envelope ; a metal tube 4, acting as a Faraday cage, is arranged on the side of the anode remote from the cathode 3, and carries a .window 5. A high variable resistance 6, which may be ohmic or consist of an incandescent cathode vacuum tube, is connected between the anode and the earthed window. In a modification, Fig. 2, the cathode 10 is mounted inside a hollow anode 9 having a flange 11 extending into a metal tube 12 closed by the window 5.
Patent GB-880247-A (GB)
Title: Improvements relating to d.c. restoration circuits
Inventor: SPENCER ROLF EDMUND
IPC: H04N5/16
Filed: 1959-08-08
Abstract: 880,247. Semiconductor circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 5, 1960 [Aug. 8, 1959], No. 27186/59. Class 40(6). [Also in Group XL(b)] In a D.C. restoration circuit comprising a unidirectionally conductive device connected in a path between the output terminals of the circuit, a temperature sensitive device is included in the circuit to provide a compensating bias so as to counteract variations of a restored D.C. component due tothe effect of temperature variations on the unidirectionally conductive device. In one embodiment which reduces the effect of variation with temperature of the pedestal voltage of a semiconductor D.C. restoring diode Dl, Fig. 2, a further identical diode D2 is connected in series with the diode Dl, but with reverse polarity. The junction of the diodes is connected over resistance-condenser combination R2, C2 to a source of negative potential. In a second embodiment, reducing the effect of variation with temperature of reverse current in a semiconductor D.C. restoring diode Dl, Fig. 3, a further identical diode D2 is provided in series with the output terminals of the circuit, with a positive bias applied to its anode via resistor R3. The two arrangements of Figs. 2, 3 may be combined. The compensating devices are not necessarily identical diodes but may comprise other devices, e.g. thermistors.
Patent GB-1511235-A (GB)
Title: Offshore semisubmersible rigs
IPC: B63B35/44
Filed: 1975-06-18
Abstract: 1511235 Propelling semi submersible rigs D J DOUST 18 June 1975 [19 June 1974] 27195/74 Heading B7V A semi submersible rig comprises a plurality of pontoons which support a working deck and at least one of the pontoons has a propulsion and steering unit at each end comprising a Y-shaped duct 22 arranged with two arms 23 opening into the sides of the pontoon and a stern 24 opening into a rudder recess 29 in a respective pontoon end, rudder means in the recess, valve means in each of the arms 23 and a propeller 36 in the stern 24. As described the rudder means comprise twin rudders 30 and the valve means comprise butterfly valves 31. Ballast tanks and drive motors 32 are arranged in the pontoon.
Patent GB-1096146-A (GB)
Title: Tool box for a cutter tool
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C35/19
Filed: 1964-07-01
Abstract: 1,096,146. Pick boxes. AUSTIN HOY & CO. Ltd. Sept. 1, 1965 [July 1, 1964], No. 27225/64. Heading E1F. A multi part pick box that is so formed by components adapted to be secured together in a separable manner to subsequently facilitate partial replacement of some of the components when worn by a mineral-cutting pick having a shank for engaging in a socket in the box, shoulders for abutting the surfaces of the box about the socket, and a latch mounted in the shank for engagement in a recess formed in the walls of the socket. Both a two and a three component embodiment are described in detail.
Patent GB-709302-A (GB)
Title: Improvements relating to cast iron
Filed: 1951-11-20
Abstract: An alloy cast iron of the analysis described in the parent Specification is hardened by heating to 1600-1800 DEG F. and cooling to below 900 DEG F. at an average rate not exceeding 100 DEG F. per hour. The cast iron may be softened by heating to 1600-1800 DEG F. and quenching.  It may then be machined and finally hardened.  The manganese content may be increased to 1.2 per cent.
Patent GB-225534-A (GB)
Title: Method to separate paraffins from liquid carbohydrates
IPC: C10G73/28
Filed: 1924-11-14
Abstract: 225,534. Aktiebolaget Separator- Nobel. Nov. 28, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Paraffin waxes, extracting.-In the separation of waxes from crude oils &c. by diluting with gasolene, naphtha, or other liquid of low specific gravity and then cooling and filtering, settling, or centrifuging, the crude oil is first cooled to precipitate the wax and is then mixed with the separately cooled diluent. The diluent may be added and the cooling take place in stages so that the separation of waxes may be fractional. Diluent in sufficient quantity to precipitate the waxes in a form suitable for separation may be cooled with the crude oil, and this latter diluent, may be different from that cooled separately and be such as to transform the precipitated wax from its raw colloidal state. Using the apparatus shown for fractional precipitation and centrifugal separation of the paraffin, the oil is cooled in a crystallizer 1 of usual construction and is mixed in a vessel 3 with gasolene from a continuous cooler 4. The mixture is then passed through a series of centrifuges 5. The liquid free from precipitated wax is further cooled in a crystallizer 2, mixed in a vessel 6 with pure gasolene from the cooler 4, and then passed through a battery of centrifuges 7. The cold paraffin-free liquid may be used in the cooling elements of the crystallizers 1, 2 and cooler 4.
Patent GB-349869-A (GB)
Title: Devices for guiding the mandrel bar of tube push benches
IPC: B21C1/34
Filed: 1930-09-12
Abstract: 349,869. Cupping. DEMAG AKT.- GES., Duisburg, Germany. Sept. 12, 1930, No. 27307. Convention date, Sept. 12, 1929. [Class 83 (iv).] A support for the mandrel of a tubedrawing bench comprises levers 7 normally swinging into supporting engagement with the mandrel under their own weight and retained in that position by a lever 10, an extension 11 of the lever 10 being engaged by the work to rock the lever and allow the levers 7 to be moved apart by the work to permit its passage, after which the levers swing back into operative position.
Patent GB-356945-A (GB)
Title: Improvements in and relating to the regulation of the speed of motors
IPC: G05D13/32
Filed: 1930-09-12
Abstract: 356,945. Speed governors. GES. FUR ELEKTRISCHE APPARATE, Marienfelde, Berlin. Sept. 12, 1930, No. 27310. Convention date, Sept. 24, 1929. [Class 57.] In a motor speed controller in which a diaphragm is loaded on one side with a pressure corresponding to the desired speed, and on the other by a pressure corresponding to the actual speed, any movement of the diaphragm due to a difference between the speeds, acting through contacts on speed-controlling means for the motor, additional contacts are provided which upon considerable bending of the diaphragm act to influence the speed of operation of the speed-controlling means. With an electric motor, the diaphragm M, Fig. 2, when subjected to different pressures makes contact with one or two fixed contacts f1, /2 to energize one of two relays R1, R2 and close either of switches r1, r2, Fig. 3, to energize a pilot motor St. The motor St varies resistance W, in the series with the main motor PME, Fig. 4. Upon an excessive difference between the actual and desired speeds one or two additional fixed contacts f3, /4 is engaged by the diaphragm, energizing a relay R3 which short-circuits a resistance Wo in the pilot motor circuit. The relays R1, R2, also close switches r1 a and r2 a which short-circuit through variable resistances W3 and W2 the field and the armature of the main motor. These short circuits are periodically interrupted by switches K5, K6, actuated by a cam on the pilot motor shaft. The resistances W3, W2 are varied by the pilot motor in the same way as the resistance W1. When the diaphragm is in its central position the armature of the pilot motor is short circuited. When the slider driven over the resistances W1, W2, W3 reaches the ends of its travel, switches K1, K2 are opened to stop the pilot motor, and at one end when the switch K2 is opened a second switch K3 opens, and a third K4 closes, the former opening the main motor circuit and the latter short-circuiting part of the resistance W1. The pressure on the diaphragm corresponding to the desired speed may be produced by gravity, springs, magnetically, pneumatically, or hydraulically, while that due to the actual speed is obtained by a water, oil, or air pump. In the case of an internal-combustion engine the diaphragm influences the gas supply or the ignition.
Patent GB-783659-A (GB)
Title: Improvements in adhesion of textile fabric to butyl rubber
IPC: C08J5/06
Filed: 1955-09-26
Abstract: An adhesive composition comprises 100 parts of butyl rubber pre-reacted with sufficient curative to increase the Linhurst plasticity member by from 0.002 to 0.050 units, from 15-50 parts of a novolac phenol-formaldehyde resin and a methylene-yielding hardening agent therefor, and sufficient curative to vulcanize the pre-reacted butyl rubber.  Specified curatives are sulphur, thiuram accelerators, dithiocarbamates, the nitrosobenzene, p-quinone dioxime and red lead, and 4-hydrocarbon-2,6-dimethylol phenols and their resinous self-condensation products.  The last particularly in the presence of a heavy metal, e.g. tin, iron and zinc chloride.  Fillers such as carbon black may also be present. The preferred novolac is a novolac cashew nut shell oil modified phenol-formaldehyde resin. Specifications 545,716, [Group IV], and 733,138 are referred to.
Patent GB-706650-A (GB)
Title: Improvements in or relating to the preparation of dicarboxylic acids
IPC: C07C51/295
Filed: 1951-11-22
Abstract: Dicarboxylic acids are obtained by heating a saturated aliphatic monohydroxy monocarboxylic acid or an alkali salt of such an acid, in which the hydroxyl group is linked to a nonterminal carbon atom, with an alkali metal hydroxide and acidifying the product.  A dicarboxylic acid is produced containing the same number of carbon atoms between the carboxyl groups as the carbon atom chain between the hydroxy group and carboxylic group in the original hydroxy carboxylic acid. The heating takes place preferably at a temperature in the range 230 DEG  to 320 DEG C. and at atmospheric or higher pressures.  If it is carried out at atmospheric pressure it is preferable to use a solvent, e.g. high boiling saturated petroleum hydrocarbons such as mineral oil and white oil.  Suitable starting materials are those having the formula <FORM:0706650/IV (b)/1> in which x is a number from 0 to 15, y is a number from 1 to 15 and A is hydrogen or an alkali metal, preferably sodium or potassium.  Examples of starting materials which may be used are 9-hydroxystearic acid, 10-hydroxystearic acid, 14-hydroxystearic acid and 4 - hydroxy - valeric acid.  Preferably sodium or potassium hydroxide or a eutectic mixture of these is used as the alkali in the fusion.  In the examples (a) 12-hydroxystearic acid is heated with sodium hydroxide and potassium hydroxide in the presence of white oil; after separating the oil, the mixture is acidified with hydrochloric acid to give dodecanedioic acid; (b) sodium 12 - hydroxy stearate is heated with sodium hydroxide and potassium hydroxide in the presence of white oil; the white oil is separated and the reaction mixture heated with hydrochloric acid to give the dibasic acid.
Patent GB-1064871-A (GB)
Title: Process and apparatus for determining the oxygen content of a gas
IPC: G01N27/18
Filed: 1964-07-02
Abstract: 1,064,871. Gas analysis. STAMICARBON N.V. July 2, 1964 [July 2, 1963; Dec. 6, 1963], No.27422/64. Heading G1N. Apparatus for determining the oxygen content of a gas mixture comprises means for measuring the temperature rise when the gas is mixed with an excess of oxidizable material in the presence of a catalyst resistor connected in a bridge circuit. The oxidizable material may be pentane, butane or hexane, forming C0 2  and H 2 0 on oxidation. The apparatus may be combined with means to measure methane concentration. The oxygen gas mixture to be analyzed is drawn by a pump 14 (Fig. 2) through a mixing chamber 13 containing brick grit in which cyclohexane has been absorbed, and a reaction chamber 5 where the gases combine in the presence of a catalytically active resistor 4, the change in resistance, indicative of the rise in temperature and oxygen concentration, being measured in a D. C. bridge circuit containing a heating resistor 2, fixed resistor 3 and resistor network 6, 7, 8, resistor 8 having a negative temperature coefficient for compensating for ambient temperature, and resistor 7 being adjustable manually or automatically with a Bourdon gauge, for ambient air pressure. A switch 10 enables the bridge meter 9 to be used for checking the bridge battery 1. Details of the construction of the mixing chamber and reaction chamber are given. In another embodiment Fig. 8 (not shown) the reaction chamber can be coupled to one of two inlet ports, each associated with different bridge resistors giving full scale deflection on the bridge unbalance meter for preselected concentrations of oxygen or methane. For large concentrations of methane, the test gas is fed through a third inlet port in parallel with an oxygen source fed through a tube having an impedance <SP>1</SP>/ 19  the impedance of the test gas tube, whereby a methane concentration of 80% is indicated as <SP>80</SP> 20  i. e. 4%. An alarm device can be energized at predetermined maximum or minimum concentrations.
Patent GB-257446-A (GB)
Title: Improvements relating to the mounting of instruments and the like on motor vehicles
IPC: B60K37/02
Filed: 1925-10-31
Abstract: 257,446. Lucas, Ltd., J., Lucas, 0., and Egginton, W. H. . Oct. 31, 1925. Clocks and recording instruments, mounting.- The various instruments are-mounted in apertures in a flanged carrier plate a, in front of which axe located an apertured plate h and a glass plate g. The switch-operating means i pass through the glass. Lamps may also be secured to the plate a. The back of the plate h is enamelled white to reflect the light from the lamps on to the dials. Spacing stops separate the plate a from the plates h, g.
Patent GB-509238-A (GB)
Title: Improvements in means for heating liquids, for use in the operation of aircraft and for other purposes
IPC: B64D33/10
Filed: 1937-10-12
Abstract: 509,238. Lubricating systems. MUIR, N. S. Oct. 12, 1937, No. 27646. [Class 12 (iii)] [Also in Group XIII] The lubricating oil of an engine driving a vehicle or aircraft is heated by circulating it through a rotary heater, which consists of discs, vanes or the like rotatably mounted in a casing having inlet and outlet passages. Oil is circulated by a pump 15 from a tank 17 through a rotary heater 11 and back to the tank, from which the heated oil is run into the engine. Valves 22, 23, may be opened to allow the pump and heater to. be connected directly to the engine through pipes 20, 21. The flow and return pipes 20, 21, may have a number of branch lines for connection to aircraft engines at a number of stations in an aerodrome.
Patent GB-1515514-A (GB)
Title: Metal nitrates as oxidation catalysts
IPC: C07C45/34
Filed: 1975-06-19
Abstract: 1515514 Oxidizing hydrocarbons SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 19 June 1975 [21 June 1974] 27672/74 Heading C2C Hydrocarbons are oxidized with oxygen at elevated temperature in the presence of a supported catalyst comprising at least one nitrate of a transition metal, thallium or lead, in an amount of 2-15% by wt. calculated as metal(s) on support. Methyl ethyl ketone, butylene oxide, acrolein, acetone and/or acetaldehyde may be obtained from 2-butene.
Patent GB-1195434-A (GB)
Title: An Earthing Device for Vehicles
Inventor: FLEM GERARD LE
IPC: B60R16/06
Filed: 1967-06-15
Abstract: 1,195,434. Protective arrangements; two part couplings. G. LE FLEM. 15 June, 1967 [10 Aug., 1966], No. 27680/67. Headings H2E and H2K. A device for earthing vehicles being loaded with flammable materials employs the capacitance of the vehicle to earth in the feedback circuit of an oscillator. When a connection is made to the vehicle by way of a flexible cable 22 the transistor 11 begins to oscillate; its output is rectified and applied through a 4-5 second delay network 16 to an emitter follower 15<1> to energize a relay 13. One set of contacts of the relay 13 connects a choke 18 into the circuit so that the cable 22 is earthed through the low resistance of the choke 18 and the secondary of the oscillator transformer 12. A second set of contacts energize a main relay 35 controlling indicators 7, 8 and operating mechanism (not shown) for the loading operation. The cable 22 is connected to the vehicle by a clip (not shown) and to the detector of Fig. 1 by a magnetic coupling (Fig. 2). A soft iron member 23 is clamped to cable 22 and co-operates with a permanent magnet 25 connected to transformer 12 by way of 32. If the vehicle is driven away while the clip is still attached the member 23 is pulled off the magnet 25, allowing a plunger 30 to rise to close contacts (not shown) to energize an audible alarm.
Patent GB-627028-A (GB)
Title: Boxes or like containers
IPC: B65D5/44
Filed: 1946-09-16
Abstract: 627,028. Boxes. WINGFOOT CORPORATION. Sept. 16, 1946, No. 27687. Convention date, April 29. [Class 18] A box made up from a sheet of transparent material 1 is reinforced at its top and bottom edges with strips of cardboard 2 affixed to the transparent sheet and scored and cut as at 4, 5 and 3 to facilitate folding.
Patent GB-218903-A (GB)
Title: Improvements in the distributing mechanism of typographical machines
IPC: B41B11/18
Filed: 1923-11-05
Abstract: 218,903. Hart, H., (Mergenthaler Linotype Co.). Nov. 5, 1923. Distributing m a t r i c e s . -Means movable into and out of operative position is provided for supporting matrices released from the distributor-bar and dropping them at points different from those at which they are released from the bar. The device is particularly applicable to the distribution by means of a single-distributorbar of. founts containing different numbers of matrices, such as normal ninety-character founts and special seventy-two character founts suitable for display work, and comprises a pair of notched rails D, Fig. 3, upon which the matrices released from the distributorbar B are supported and carried forward until they reach the proper magazine channel. The normal founts may be stored in the upper magazines A, A<1>, Fig. 1, of a movable column, and a, special seventy-two character found in the lowest magazine A<2>, interchangeable magazine entrances C, C<1>, which differ in the number and spacing of their channels, being provided. One of the rails is carried by arms D' pivoted to the distributor-bar B, and is normally in operative position, but is pushed out of action by a projection D<6> on the magazine-entrance C. The other rail D is carried by the entrance C<1>. Both of the rails may be pivoted to the distributor-bar and connected together so that they may be held out of action by a spring and moved into action by a projection on one magazine-entrance or magazine. In another form, both of the rails are carried by one of the magazine-entrances. The rails may have only a single pair of notches for releasing sorts matrices at one point, or may be unprovided with notches so that the matrices are released at the ends of the rails.
Patent GB-690192-A (GB)
Title: Disintegrating mechanism for longwall continuous mining
IPC: E21C27/26
Filed: 1950-11-14
Abstract: 690,192. Mining-machines. JOY MANUFACTURING CO. Nov. 14, 1950 [Dec. 5, 1949], No. 27771/50. Class 68(i) A mining-machine comprises a jib, pivoted to a supporting body at one end and mounting a series of disintegrating elements at the other end, and a power actuated extensible means disposed lengthwise within the lateral boundaries of the jib for swinging the latter about the pivot. In the form described, a longwall machine comprises a jib frame 14, 15, carrying a number of endless attacking and disinte.- grating chains 28, which is freely pivoted about guide bushes formed on gear casings 4 which are carried by the supporting body 3. The gear casings each contain a worm and pinion drive to the shaft 11, which carries the drive sprockets 27 for the endless chains 28. The chains are supported at their outer ends by sprockets 31 splined to a transverse shaft 33 which is journalled at 34 in the outer portion 15 of the jib frame. The portion 15 is slidable with respect to the portion 14 to vary the tension in the chains. Two outer sprockets 37, which are also splined to the shaft 33, carry side attacking and disintegrating chains 38 which do not extend over the full length of the jib but are supported at their rear ends by semi-circular guide surfaces 45. The jib frame is swung about its pivot by a pair of hydraulic rams 55, mounted within the jib frame itself. The piston rods 58, pivotally connected to the ram pistons 57, are pivotally connected at their rearward ends to a transverse horizontal bar 61 which also carries reaction links 65 connected to the supporting body 3. Rollers 70 on the shaft 61 engage inclined cam blocks 73 in the frame so that, as the pressure liquid is supplied to the rams 55, the frame pivots about the axis of the shaft 61. A source of pressure liquid PS is connected to the rams via a valve box 91 and an automatic control valve 78, Fig. 8. In one position of the slide valve 94, pressure liquid is supplied to the rams and the jib swings upwards until, at the upper limit of its travel, a sleeve 71 on the shaft 61 engages a lever 87 which depresses a slide valve 88, Fig. 7, so cutting off further supply of liquid to the cylinders. When the valve 94 is moved to its other position the pipe 95 is vented and the liquid returns to a tank 93 via a spring controlled non-return valve 89 in the valve 87. Water may be sprayed on the cutters to reduce dust.
Patent GB-671443-A (GB)
Title: Improvements in internal combustion engines having pump-fed carburettors
IPC: F02M37/00
Filed: 1949-10-31
Abstract: 671,443. Air vessels for fuel pumps. EVEREST, E. P. May 17, 1950 [Oct, 31, 1949], No. 27792/49. Class 102 (i) In an internal-combustion engine having a carburetter 2 supplied by a pump 1, a pressure chamber 6 is detachably connected in the two parts 4a, 4b of the fuel pipe, the inlet 8 of the chamber extending to a level higher than the oulet 10 from the chamber.