baber/WOPTO huggingface dataset:
Patent GB-1260872-A (GB)
Title: Current transmitter responsive to a d.c. isolated voltage signal
IPC: G05D23/22
Filed: 1969-05-27
Abstract: 1,260,872. Two-wire current transmitters. ROSEMOUNT ENG. CO. May 27, 1969 [May 27, 1968], No.26816/69. Heading G1U. A two-wire circuit transmitter for connection to a remotely-located D. C. source and load 16, 17 to control the load current I t  in dependance on an input D.C. signal from a circuit 40 comprises: an arrangement 20 for providing across a resistor 27 a feedback voltage proportional to the voltage across a second resistor 23 in the load current path whilst maintaining D. C. isolation between the two resistors; and a current controller 11 which controls the load current It in dependance on the difference between the input signal and the feedback voltage. The arrangement 20 comprises a storage capacitor 29 in parallel with the resistor 27, a capacitor 39 inter-connecting first ends of the two resistors 23, 27, and a further capacitor 30 which is switched repetitively between the two first and the two second ends of resistors 23, 27 under the control of an oscillator 14. The power required to operate the oscillator 14 is derived from the load current It by a voltage regulator 14, e.g. a Zener diode, in the load current path. Preferably Fig.2 (not shown) oscillator 14 is a multi-vibrator and each of switches 33, 34 is constituted by a pair of f.e.t. 's whose channels are unblocked in alternation by the signal from the multi-vibrator. The feedback signal may be adjusted by varying resistor 27, and is fed in series with the unknown input signal to a chopper 50, also controlled by oscillator 14, whose output is capacitatively coupled to the input of current controller 11, as described in Specification 1, 240, 493. The input signal may be derived from thermocouple 41 in series with a bridge network 42 supplied with a constant D. C. voltage derived from the oscillator output. The bridge network provides an offset voltage, and/or includes a temperature responsive arm to provide cold junction temperature compensation. The input signal may alternatively be derived from a strain gauge bridge or a resistance thermometer bridge, with or without the auxiliary bridge 42.
Patent GB-904757-A (GB)
Title: A method of and apparatus for improving inter-phase contact
IPC: B01F27/93
Filed: 1960-08-03
Abstract: <PICT:0904757/III/1> A rotary disc contacting column primarily for the solvent extraction of liquids has fixed rings 11 attached to the inside of the container 10, and a stirrer 22 comprising a set of discs 12 attached to a shaft 13 rotated by a hydraulic motor 18 driven by an incoming jet 19 of one of the liquids.  A proportion of the liquid may be by-passed at 20 and the speed of rotation of the stirrer adjusted by the valve 21.  The apparatus is suitable for use with high perssures as the shaft does not have to pass through a seal.  As shown the apparatus is applied to the propane de-asphalting of a lubricating oil faction, the oil mixed with a little propane entering at 14 and the remainder of the propane at 15.  The deasphalted oil in solution in propane leaves at 16 and the asphalt at 17; a liquid level controller 23 controls the level of the oil/asphalt interface 26.  The hydraulic motor 18 is a Pelton wheel the driving jet 19 of which is directed between shields 31, (see also Fig. 2, (not shown)).  Alternatively the motor may be an axial flow turbine.
Patent GB-1007373-A (GB)
Title: A high speed printer
IPC: B41J1/20
Filed: 1962-07-12
Abstract: 1,007,373. Selective printing. OKI ELECTRIC INDUSTRY CO. Ltd. July 12, 1962 [July 20, 1961], No. 26910/62. Heading B6F. In a high-speed printer for printing a line of characters under the control of a computer and memory device and wherein the type 4 are mounted on an endless belt 3, and a number of hammers 5 equal in number to the number of characters in a line are arranged along a straight run of the belt so that a line of characters is printed during one rotation of the belt, the straight run passes through a guide 1, 2 engaging the type-carrying members 7 both at the front and at the rear so that the impact of the hammers is taken by the guide. Each member 7 has two rearwardly-projecting legs 8, 9 which pass through the belt 3 so that their inner ends abut against the surface 10 of the guide. A tubular member 14 surrounded by a spacing sleeve 13 extends through holes in the legs 8, 9 and is engaged by the ends of a C-shaped clips 15 so as to secure the member 7 detachably to the belt. Inwardly extending edges 21, 22 on the part 2 of the guide engage the outer faces of the members 7 so as to hold the legs 8, 9 against the surface 10. Grooves 23, 24 engaging the edges of the members 7 may be provided in the part 2 to further assist in taking the impact of the hammers. Specification 918,769 is referred to.
Patent GB-303849-A (GB)
Title: Improvements in dipping or swivelling control mechanism for vehicle head lights
IPC: B60Q1/124
Filed: 1927-10-11
Abstract: 303,849. Treglown, G. H., and Barnfather, E. Oct. 11, 1927. Vehicle lamps, directing.-In lamp dipping or swivelling mechanisms for vehicles, the lamps are retained in the adjusted position by means of a quadrant or sector on the rocking or swivelling lamp support, the quadrant being engaged by means fixedly mounted adjacent the bearing of the support. In the mechanism shown, the lamp brackets are supported on a spindle e carried bv a sleeve, b mounted on a transverse rock-shaft c supported in end bearings d. The sleeve b carries a toothed quadrant g engaged by the nose of a spring- pressed bolt k mounted in the bearing casting, retaining the lamps against undesired movement from the adjusted position of dip. Preferably a similar device is used in connection with both the lamps on the rock-shaft. The quadrant or sector may be adapted to co-operate with a ball fastening device, or with a spring-pressed bolt having a V-shaped nose frictionally engaging a correspondingly-formed groove in the quadrant. Similar retaining means may be employed in connection with the swivelling mountings of the lamps. Specification 305,961 is referred to.
Patent GB-1391010-A (GB)
Title: Pneumatic tyres
IPC: B29D30/30
Filed: 1972-06-09
Abstract: 1391010 Vehicle tyres YOKOHAMA RUBBER CO Ltd 9 June 1972 [12 June 1971] 27082/72 Heading B7C A pneumatic tyre consists of an elastomeric tread 4, a liner 3. and a reinforcing ply 1 formed by winding a rubberized cord belt of steel, light alloy or textile around the tyre circumference at an angle of 0-20 degrees to the mid-circumferential plane, the ply 1 extending between the bead regions with the cords or belts having at least one end located in these regions. The cords or belts may be of circular or rectangular crosssection, Figs. 5-8 (not shown), and may form the tyre beads by superimposed windings in the bead regions and additional crown reinforcement by folding ply 1 to form superimposed layers. The crown reinforcement may be separate from ply 1 or formed by two reinforcing plies each extending from a respective bead region to the opposite shoulder. The liner 3 may be reinforced by cellulose fibres. A tyre building drum 10 Fig. 10, is formed of two segmented frusto-conical parts 10 which are movable towards and away from each other, one part at the inner ends of the segments being formed with fingers which enter recesses formed in the inner ends of the segments of the other part. The tyre formed may have an aspect ratio of 0À2-0À4.
Patent GB-412813-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H01J29/76
Filed: 1933-10-02
Abstract: 412,813. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.- (Assignees of Ogloblinsky, G. N. ; 22, Merrick Villa, Collingswood, New Jersey, U.S.A.) Oct. 2, 1933, No. 25080. Convention date, Sept. 30, 1932. [Class 40 (iii).] In a television transmitter of the kind in which a cathode beam 22 scans a photoelectric screen 14, comprising numerous silver globules coated with photosensitive material upon which is projected an image of the object 16, distortion to the form A, B, C, D of the picture E, F, G, H, due to obliquity of the beam 22, is corrected by modifying the saw-toothed voltage applied to the line-frequency deflecting- plates 32. The potential of the plates is determined by the charging of a condenser 50 through a resistance 54 from a supply terminal 52, discharge being effected periodically through a valve 48 under the control of synchronizing impulses from a source 34. In order to correct for distortion, the amplitude of the line-scanning deflections is varied by varying the grid bias of valve 48 in proportion to the frame-scanning deflection, and for this purpose a connection 60 is made to the source of deflecting-voltage 58 and this connection may include an amplifier (Fig. 3, not shown). Alternatively, the connection 60 from the frame-frequency source 58 may go through an amplifier to a point on the resistance 54 (Fig. 4, not shown), so as to vary the voltage applied to the condenser 50 ; or both grid-bias and condenser-voltage may be simultaneously varied.
Patent GB-1012222-A (GB)
Title: Improvements in and relating to tonic and anti-anaemic medicaments
Filed: 1962-07-13
Abstract: The invention comprises hydroxocobalamine pantothenate.  The compound is obtained by adding pantothenic acid to a solution of hydroxocobalamine until there is a sharp change in pH, then adding further acid in quantity between 1/10 and 1/4 of that previously added, adding further acid if the pH changes on standing, and then crystallizing the compound by adding acetone.  Hydroxocobalamine pantothenate may be administered as a solution in water, as a tablet, e.g. with wheat starch, potato starch and magnesium stearate, or as suppositories or an ointment.
Patent GB-818036-A (GB)
Title: Method of producing composite articles of polyethylene and polyester and articles produced thereby
IPC: B32B27/00
Filed: 1955-09-23
Abstract: Styrenated, unsaturated polyester resin compositions adapted to bond with polythene when cured in contact therewith are made by, in Examples (1) and (3), adding styrene to a partial reaction product prepared from phthalic anhydride, maleic acid, and propylene glycol, and, in Example (1), further adding benzoyl peroxide as polymerization catalyst and hydroquinone as inhibitor; (2) adding to the styrenated partial reaction product of Example (1) benzoyl peroxide, and a mixture of stannous chloride and diethylene glycol as catalyst; chopped glass strand is impregnated with this mixture and passed through heated rollers into a chamber kept at 35 DEG  C., the polyester then being in the form of a partly polymerized gel; (4) adding styrene to a partial reaction product prepared from phthalic anhydride, maleic acid, propylene glycol, and diethylene glycol and further adding cyclohexyl hydroperoxide as polymerization catalyst; (5) adding styrene to a partial reaction product prepared from propylene glycol, ethylene glycol, maleic acid, and phthalic anhydride, and further adding cyclohexyl hydroperoxide as a polymerization catalyst and a foaming agent which may be either a dinitrosopentamethylene-tetramine, or azo-bis-di-isobutyro-nitrile.ALSO:In example 2 a layer of chopped glass strand impregnated with a styrenated, unsaturated polyester resin composition (see Group IV(a)) is heated to bring the polyester into the form of a partly polymerised gel and applied to the outer surface of a polyethylene tube which is then placed in a jointed mould and heated by admitting superheated steam into the tube to cure the polyester resin and cause it to bond to the polyethylene.  In example 5 a closed bag of polyethylene sheet filled to about one third capacity with a styrenated unsaturated polyester resin composition containing a foaming agent (see Group IV(a)) is introduced into a separable ovoid-shaped mould which is sealed and placed in a heated oven for 15 minutes.  The polyester resin composition expands and forces the polyethylene bag into contact with the heated walls of the mould.  The resultant firm, chemically resistant ovoid body may be used as a buoy.
Patent GB-805232-A (GB)
Title: Improvements in and relating to voltage stabilising arrangements in electronic counting and computing apparatus
Inventor: ACTON JOHN REGINALD
IPC: H03K29/00
Filed: 1953-11-19
Abstract: 805,232. Electric counting and digital-datastorage apparatus. ERICSSON TELEPHONES Ltd., and ACTON, J. R. Feb. 15, 1955 [Nov. 19, 1953], No. 27241/58. Divided out of 805,231. Drawings to Specification. Class 106 (1). In a voltage-stabilizing arrangement for a multi-cathode discharge tube the potential at the anode of the latter is clamped at all times at a substantially constant value without regard to the number or incidence of discharges within the tube by means of an instantaneously activated asymmetrical conducting device or a plurality of such devices. The detailed description is the same as that of Specification 805,231, but the claims differ. Specification 712,171 also is referred to.
Patent GB-1082853-A (GB)
Title: Improvements in or relating to baling machines
Inventor: LEFAURE LEOPOLD
IPC: A01F15/08
Filed: 1964-07-02
Abstract: 1,082,853. Baling machines. MASSEY-FERGUSON S.A. June 9, 1965 [July 2, 1964], No. 27321/64. Heading B5F. In a baling machine comprising a plunger 4, a baling chamber 3 and means 7 for feeding straw to the chamber 3, each bale is separated from the next bale by gate means 20 which is periodically moved into the feed path to interrupt the feed of straw. The gate means 20 comprises fingers 21 interspaced with fingers of the feed means 7. The tips of the gate fingers and feed fingers trace out paths C and F respectively. The interrupting action of the gate means 20 may take place on each stroke of the feed means 7 or only when feeding the last charge before a binding operation.
Patent GB-638588-A (GB)
Title: Improvements in or relating to apparatus for retarding the speed of rail road cars such as mine cars, colliery tubs, waggons and the like
IPC: B61K7/08
Filed: 1947-10-11
Abstract: 638,588. Railway track brakes. ALLEN & SONS (TIPTON), Ltd., W. G., and TOLHURST, W. T. Oct. 11, 1947, No. 27331. [Class 103 (i)] In a track brake for mine cars and the like, the actual displacement of the gripper bars 4 by the wheels of a car passing them is made to force liquid into a spring loaded master cylinder 14 and in so doing to generate a reaction pressure which brakes the wheels. In the arrangement shown, a reservoir 21, maintained at a small positive pressure, supplies the hydraulic system through a non-return valve 24 and a pipe 25. Pressure may be released, if necessary, by a hand-operated byepass valve 36. Alternative arrangements are described in which the gripper bars are pressed on to the outside faces of the wheels or on to suitable rubbing strips on the car sides.
Patent GB-482897-A (GB)
Title: Nitrogenous synthetic resins
IPC: C08G12/22
Filed: 1936-10-08
Abstract: Nitrogenous condensation products are prepared by reacting formaldehyde, a substance reacting like formaldehyde or a reactive methylol compound with acrylic acid amide before, during or after polymerization thereof and, if desired, subjecting the resulting product to a heat treatment.  Formaldehyde equivalents include hexamethylenetetramine, methylolurea, acrylic acid methylolamide, and p-cresol dicarbinol.  The action of the formaldehyde is preferably effected at a hydrogen ion concentration of pH from 7 to 10, caustic soda, barium hydroxide, soda, magnesium carbonate, amines or organic bases being added to control the pH.  The reaction may also be effected on mixtures of the acrylic acid amide with bodies capable of interpolymerization therewith followed by interpolymerization; on preformed interpolymers; or the product may be interpolymerized with bodies, such bodies forming interpolymers, including vinyl esters, vinyl ethers, acrylic esters, vinyl chloride and styrene.  Bodies capable of reaction with formaldehyde, and their preformed condensates with formaldehyde, such as phenol, aniline, urea or cyanamide, may be added during the course of the reaction.  The products may be used for the manufacture of coatings, films, adhesives, impregnants, sizes, and as binding agents such as in the manufacture of brake bodies, clutch discs or abrasive discs.  In an example, acrylic acid is condensed with aqueous formaldehyde in the presence of caustic soda and the product, after being polymerized in the presence of potassium persulphate, is used to manufacture films which are rendered water insoluble by hot pressing.  Specification 467,492 is referred to.
Patent GB-1270538-A (GB)
Title: Mounting for gas turbine jet propulsion engine with fan unit
Inventor: CLARK KENNETH WILLIAM
IPC: B64D27/20
Filed: 1968-06-08
Abstract: 1,270,538. Gas turbine ducted fan engines. ROLLS ROYCE Ltd. June 6, 1969 [June 8, 1968], No. 27355/68. Headings F1G and F1J. An aircraft gas turbine jet engine comprises a gas turbine engine adapted to be mounted on aircraft structure and a fan unit comprising a fandriving turbine arranged to be driven by engine exhaust gases, there being means for connecting the fan unit to aircraft structure independently of the engine and ducting for directing the engine exhaust gases to the fan-driving turbine, the ducting permitting relative movement between the fan unit and the engine. The engine 3 shown in Fig. 2 is a gas turbine by-pass type engine, the efflux of which drives the turbine 21 of a ducted fan assembly. The fan assembly comprises a centre-body 22, an intermediate casing 23 comprising a forward portion 26 and a rearward portion 27, and an outer casing 30, turbine inlet guide vanes 24 and outlet guide vanes 25 extending across the turbine working fluid annulus, and fan inlet guide vanes 31 and outlet guide vanes 32 extending across the fan duct. The fan blades 20 are carried by the tips of the turbine blades. A support ring 33 is mounted at the upstream end of the casing 23. The engine 3 is supported from the aircraft structure by an arcuate member 10 and a ring member 11, the axial thrust of the engine being carried by the member 10 by means of mountings 12 at each side of the engine and part of the weight being carried by member 10 by means of link 9. The remainder of the weight of the engine is carried by the ring member 11 by means of link 13. The support ring 33 of the ducted fan assembly is supported from the ring member 11 by means of a frame structure 34. In place of a frame structure a rigid monocoque structure may be used. A rigid half monocoque structure 14 extends between the arcuate ring 10 and the ring member 11. A device for mixing by-pass air and gas flow is provided, also a thrust reverser 36. In Fig. 3 a casing 50 extending from the fan assembly is connected to the ring member 11 by a universal joint 51. The fan assembly is also connected to the aircraft structure in this embodiment either by a pair of pin-jointed struts 51, Fig. 4, or by a beam 52 and vertical link 53, Fig. 5. In Fig. 6 (not shown), the struts upstream of the fan blades are eliminated, the outer casing being supported from the intermediate casing 23 by the outlet guide vanes 32. The shaft 63 of the turbine and fan assembly is supported by bearings 62 on a member 61 which is carried from the struts 24, 25 by means of struts 60, 64. The fan assembly is supported from the ring member 11 by either of the previously described arrangements.
Patent GB-1010369-A (GB)
Title: Improvements in or relating to loom shuttles
IPC: D03J5/00
Filed: 1963-07-10
Abstract: 1,010,369. Loom shuttles. RUTI MACHINERY WORKS Ltd. July 10, 1963 [Oct. 30, 1962], No. 27414/63. Heading D1E. A metal shuttle tip 12 has ribs 15 &c. secured by adhesive in slots 15<SP>1</SP> in the wooden body 10. The ends of the ribs curve inwardly at 16a so that although the ribs are flush with the wood at a point 14<SP>11</SP>, they are slightly below at the end 14d of the slot; also the body curves inwardly below the surface of the ribs at 10b. If the wood swells or shrinks, there are no projecting edges of metal or wood to catch the warp threads.
Patent GB-174555-A (GB)
Title: Improvements in and connected with furnaces for the production of mineral distillates of definite composition
IPC: C09C1/04
Filed: 1918-10-07
Abstract: 174,555. Mayers, H., and Britons, Ltd. Oct. 7, 1918. Dust-collectors; filtering.-The production of distillates from mineral matters, such as the production of basic lead sulphate or zinc oxide from sulphide ores by feeding the ore on to a bed of fuel and oxidizing the vapour, the product being passed to cooling and filtering chambers, is effected in apparatus in which the draught through the filters and cooling-chambers and the air admitted to the furnace are controlled by means situated at the furnace itself, so that an operator, while watching the flame of the furnace, if necessary through a spectroscope, can adjust the conditions so as to keep the oxidation constant. The fumes pass to a chamber F, to which air for cooling is admitted by a slide f, Fig. 3. Further cooling and some settling is effected in chambers G provided with curtains or incomplete partitions g, more air being admitted by valves g<2> and the product being removed by doors g<3>. From the chambers G, the fumes pass to a filter H, the fumes entering at g<4> to the lower part h<2> containing scrapers N on an endless band, for removing the product, which is then conveyed to a packing-machine Q. The filter chamber is divided into sections by partitions h, Fig. 2, each containing tubular filters h<1> supported on shaking-rods h<5>. The passage by which the gases reach each section of the filter is controlled by a slide h<6> connected by flexible connections T with the furnace platform, Fig. 2, while the outlets to a collecting-passage S communicating with the chimney U are controlled by slides s connected by flexible connecticns T' with the furnace platform. The passage of the gases is effected by a fan V in the chimney-
Patent GB-310738-A (GB)
Title: Valve
IPC: F16K1/14
Filed: 1928-09-25
Abstract: 310,738. Whittle, L. Sept. 25, 1928. Loose ball valves. - In a loose ball valve the seat S is detachably screwed in the partition B and is formed integral with an upstanding cage T which guides the ball V. The screwed stem I is provided with a concave ball-engaging member R.
Patent GB-653592-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/52
Filed: 1948-10-25
Abstract: 653,592. Thermionic valves. PHILIPS ELECTRICAL, Ltd. Oct. 25, 1948, No. 27676. Convention date, Oct. 28, 1947. [Class 39 (i)]  The tongues 2 of a mica electrode-support 1 are bent down before insertion into the tube 3 so as to split the mica of these tongues into layers, so as to prevent the mica cracking along any of the lines I-I through the apertures for the electrodes. The support 1 is held between two dies with only the tongues projecting and a cylinder having an internal diameter equal to the minimum permissible tube diameter is forced down on to the tongues so as to bend them, Fig. 4 (not shown). The support may alternatively be square or rectangular, the corners of which are strained, or parts of the circumference of a mica disc may be strained to fit a rectangular or elliptic-section bulb.