baber/WOPTO huggingface dataset:
Patent GB-1420400-A (GB)
Title: Device for applying a predetermined force to an elongate member  connected to an installation subjected to alternating movements
IPC: E21B19/09
Filed: 1973-09-06
Abstract: 1420400 Maintaining constant tension in lifting element INSTITUT FRANCAIS DU PETROLE 6 Sept 1973 [15 Sept 1972] 41997/73 Heading B8B [Also in Division E1] A device for maintaining a predetermined force in a jack 8 from which a drill string 1 is suspended through block and tackle 4, 5, 6, when the jack cylinder 9 which is secured to a floating installation 2, moves relative to the drill string 1, comprises interconnected passive and fine arrangements 10 and 17 for compensation of these alternating relative movements. The load supporting block 5 is secured to the rod 7 of the piston in jack 8, and relative movement between the jack piston and cylinder supplies or withdraws fluid to or from a jack 13 of the passive compensation arrangement 10. The jack 13 is pivotally mounted at 15 and is pivotally connected at its other end to a block 16 slidable along a path T, the block 16 also being pivotally coupled to one end of a further jack 12 of the arrangement 10, the other end of which is secured to a pivot point 14. The jack 12 is in fluid communication with oleopneumatic accumulators 11, which through the two jacks 12 and 13 and their sliding interconnection 16, supplies or absorbs energy in response to variation in fluid pressure in the jack 8 upon movement of the floating installation 2, to maintain a fairly constant force in the jack 8. The sliding block 16, however, is also influenced in its travel by a double-acting jack 18 of the fine compensation arrangement 17, which is supplied at both ends from a pump 22 through a device 21 controlling the pressure difference between the two chambers of the jack 18 independently of the displacement thereof. The arrangement 17 adjusts and improves the action of the passive compensation, in response to the actual measured value of a parameter which is a function of the vertical displacement of the installation 2, and this parameter, e.g. the tension in the depending drill string, is measured by a sensor 23 which supplies a signal to a comparator circuit 26 which is also supplied with a predetermined reference tension signal. After comparing the actual and reference signals, the comparator 26 sends a control signal to the device 21 for adjusting the jack 18 and influencing the passive compensation arrangement 10 until the actual and reference signals balance. In the embodiment of Fig. 2 (not shown), the system is used in laying a blow-out preventor on to an underwater well head and the actual parameter measured, is the distance between well head and blow-out preventor, this being measured by a sonar detector.
Patent GB-1066484-A (GB)
Title: Improvements in or relating to ventilators
Inventor: PYETT KENNETH ALAN JAMES
IPC: E06B7/02
Filed: 1963-10-24
Abstract: 1,066,484. Minimizing spread of fires. COLT VENTILATION & HEATING Ltd. Oct. 19, 1964 [Oct. 24, 1963], No. 42069/63. Heading A5A. [Also in Division F4] A wall vent to be opened manually or automatically in the event of fire comprises a shutter 21 pivoted about its lower edge to a frame 18, the shutter normally being held closed by a pneumatic piston and cylinder 23 against a bias tending to open the shutter. As illustrated the bias is provided by torsion springs 50. In the event of fire, air pressure to the cylinder is cut off and the shutter opens, the piston and cylinder 23 pivoting and extending to determine the limit to which the shutter opens. When the shutter is closed, the piston and cylinder are enclosed within interengaging channel members 44 and 43 attached to the frame and shutter respectively. In modifications (not shown) the opening bias may be provided by a weight linked to the shutter, or the shutter may be arranged to tend to open by virtue of its own weight.
Patent GB-1527083-A (GB)
Title: Apparatus for developing an electrostatic latent image
IPC: G03G21/16
Filed: 1975-10-15
Abstract: 1527083 Cascade developer XEROX CORP 15 Oct 1975 [20 Nov 1974] 42240/75 Heading B2L A cascade developer comprises a stationary housing section 62 on which electrode 56 is mounted and a movable section 61 in which the conveyor 53 and sump is mounted. The section 61 is normally held in sealing engagement with section 62 by catch plates 74 but is released when rail extensions 73 are depressed. The arrangement facilitates maintenance without disturbing the position of electrode 56.
Patent GB-971744-A (GB)
Title: Steroid-guanylhydrazones
IPC: C07J75/00
Filed: 1962-11-12
Abstract: The invention comprises the guanylhydrazone of steroids of the androstane and pregnane series containing two or more carbonyl fractions and acid addition salts thereof, and the preparation thereof by reacting steroids containing more than one carbonyl function with aminoguanidine or with an acid addition salt thereof, or by reacting said steroid reactants with thiosemicarbazide and treating the resulting thiosemicarbazones with ammonia, or by reacting said steroid reactants with hydrazine and treating the resulting hydrazone with cyanamide.  In the examples the 3,20-bis-guanylhydrazones of pregn-4-ene-3,20-dione, 11a -hydroxy-pregn-4-ene-3,20-dione, 4-chloropregn-4-ene-3,20-dione, 5a -cyano-pregnan-3, 20-dione, 17a , 21-dihydroxy-pregn-4-ene-3, 11, 20-trione, 17a , 21-dihydroxy-1, 4-pregnadiene-3, 11, 20-trione, 11b , 17a , 21-trihydroxy-1, 4-pregnadiene-3, 20-dione, 17a -hydroxy-pregn-4-ene-3, 20-dione and 3,20-pregnandione, the bis-guanylhydrazones of 2a -formyl-17a -methyl-androst-4-en-17b -ol-3-one and 2a -formyl-testosterone, and the 3, 17-bis-guanylhydrazone of androst-4-ene-3, 17-dione.  Further guanylhydrazones may be prepared from 11b , 17a , 21-trihydroxy-pregn-4-ene-3, 20-dione, 11b , 17a -dihydroxy-6a  (and 6b )-9a -fluoro-pregn-1, 4-diene-3, 20-dione, 11b , 17a , 21-trihydroxy-9a -fluoro-16a  (and 16b )-methyl-pregna-1, 4-diene-3, 20-dione and 11b , 16a , 17a , 21- and 11b , 16b , 17a , 21-tetrahydroxy-9a -fluoro-1, 4-diene-3, 20-dione.
Patent GB-426496-A (GB)
IPC: C10B57/18
Abstract: 426,496. Oil gas generation. BIRKBECK, H., 329, High Holborn, London.- (Carburetted Gas, Inc. ; 19, Dover Green, Dover, Delaware, U.S.A.) Oct. 11, 1933, No. 28049. [Class 55 (ii)] A carbon monoxide-hydrogen gas mixture obtained by the partial combustion of oil and oxygen injected into a chamber 16 containing contact material 10, such as coke, and superposed on an annular chamber 3 also containing contact material, is carburetted by the injection of hydrocarbons into the gas mixture through nozzles 20 arranged at the base of the chamber, and the enriched gas is partially fixed on its way to the discharge pipe 14 by the heat of the unenriched gas mixture, the fixing and generating chambers being separated by a central hollow column 11. Steam and oil may be sprayed into the gas before carburetting, through nozzles 18 so as to preclude an excessive temperature of the gas. In a modification, the chamber 16 is constituted by a separate vertical structure and the resulting gas is passed through a fuel oil gasifier before being re-cycled to the fixing chamber. The enrichment material may comprise a low grade fuel oil or oil gas, preheated if desired before injection into the gas stream.
Patent GB-1149859-A (GB)
Title: Alkali metal silicates
Inventor: BAKER CHESTER L
IPC: C01B33/32
Filed: 1965-10-08
Abstract: 1,149,859. Granulating apparatus. UNILEVER Ltd. 7 Oct., 1966 [8 Oct., 1965], No. 42823/65. Heading B5A. [Also in Division C1] Apparatus for building up particles of alkali metal silicate comprises inclined rotary vessel 11, fed with crushed particles from 10, alkali metal silicate solution from nozzles 21, and a gaseous drying medium from 24 which flows in countercurrent to the particles. The solution may be introduced in portions through all the nozzles, or 90% may be introduced through the first three nozzles and 10% through the fourth. The particles are agitated by baffles 18 and removed via screw conveyer 43, undersize particles being recycled. The gas may be humidified air or superheated steam, preferably at 150-1000‹ C. It is separated from fines at 26 and recycled in part. The process may be operated continuously.
Patent GB-1108841-A (GB)
Title: Improvements in and relating to the covering or packaging of articles
Inventor: COOK LESLIE BRIAN
IPC: B65B43/36
Filed: 1963-10-31
Abstract: 1,108,841. Packaging articles in tubular covers. L. B. COOK, and G. G. COOK, [trading as ELBESEE PRODUCTS]. 25 Nov., 1964 [31 Oct., 1963], No. 43115/63. Heading BBC. An article is placed inside a tubular cover 20 which has been dilated by creating a pressure difference between the inside and the outside of the cover and the pressure difference is then cancelled to allow the cover to contract around the article. In the form shown (Fig. 1) the tubing 20 is held by clamps 14 and a rubber sleeve 15 in a tunnel 11 from which air is evacuated by a vacuum pump. A strip of aluminium 17 is then pushed into the tubing and the tubing allowed to contract around it. To remove air trapped between the tubing 20 and the strip 17 the pressure in the tunnel 11 may be raised. Pressure relief valves may be included to prevent the tubing being broken by an excess in the pressure difference. The tubing may be heated by a heating element 19 to facilitate packaging of odd shaped articles. The ends of the tubing may be heat sealed before or after the aluminium strip is withdrawn from the tunnel. The apparatus may also be used for banding articles or for applying a tubular lining to the inner surface of a hollow article. The apparatus may be used vertically, in which case it may be lowered around the article.
Patent GB-1020837-A (GB)
Title: Improvements relating to the manufacture of tiles of synthetic plastic materials
Inventor: BENNETT CHARLES
IPC: B26F1/40
Filed: 1963-10-01
Abstract: 1,020,837. Cutting-out presses. JAMES HALSTEAD Ltd. Nov. 13, 1964 [Nov. 1, 1963], No. 43138/63. Heading B4B. Apparatus for cutting out tiles of synthetic plastic comprise press members 11, 12 movable towards or away from each other and each having cutting plates 14 and spring-loaded ejector plates 15 arranged alternately in such a way that the cutting plates of each press member are arranged opposite the ejector plates of the other member. The press members are kept in register during movement thereof by means of studs 13a extending from the press member 12 each engaging a hole 13b in the press member 11. The cutting plates are detachably secured to each press member.
Patent GB-1527624-A (GB)
Title: Building materials in the form of woodstone panels or strands and processes for their production
IPC: C04B38/00
Filed: 1975-10-22
Abstract: 1527624 Building material J Z VERTH 22 Oct 1975 [5 Nov 1974] 43427/75 Heading C3N A building material in the form of a panel or strand is formed from a mixture comprising finely divided calcined magnesite, a wood filler consisting predominantly of wood chips, inactive diatomaceous earth, and an aqueous solution of magnesium chloride, characterized in that (a) the weight ratio of magnesium oxide to wool filler in said panel or strand is 1 ; 2.96- 1 : 4; (b) the weight ratio of magnesium oxide to magnesium chloride (calculated as anhydrous magnesium chloride) in said mixture is 3 : 1- 4 : 1; (c) the weight ratio of magnesium chloride (calculated as anhydrous magnesium chloride) to wood filler in said mixture is 1 : 9-1 : 12 and (d) the content of inactive diatomaceous earth in said mixture is 2-15% by weight of the wood filler. The mixture may also include an alkali metal silicate, talc, rock filler, or magnesium sulphate. The wood filler particles may have a length of 20 mm. at most. The particles may be oriented essentially parallel to a plane which is normal to the direction of the extrusion of the article and also normal to the plane of the major surfaces of the panel or strand. Alternatively, the wood filler particles are oriented essentially parallel to the plane of the major surfaces of the panel or strand. In one embodiment the building material is composed of a plurality of layers; the outer layers containing a more finely divided wood filler and having a weight ratio of magnesium oxide to mgnesium chloride of 2À8 : 1-3À2 : 1 and the inner layers containing a less finely divided wood filler and having a weight ratio of magnesium oxide to magnesium chloride of 3À8 : 1-4À2 : 1. In a process for producing the building material the wood filler is admixed with all the other components except magnesium chloride and water and to the resulting mixture is thereafter added an aqueous magnesium chloride solution.
Patent GB-973526-A (GB)
Title: Improvements in the processing of textile fibre slivers
Inventor: SHAW JACK
IPC: B65H51/20
Filed: 1962-11-19
Abstract: 973,526. Spinning processes. T. M. M. (RESEARCH) Ltd. Nov. 14, 1963 [Nov.19, 1962], No. 43729/62. Heading D1F. Sliver continuously fed from one processing machine to another e.g. from the delivery rollers of a drawbox (itself fed from a battery of carding engines) to the intake rollers of a coiler, is allowed to accumulate in a storage receiver in order to compensate for lack of synchronism between the machines, particularly when the operation of the second machine is arrested. As shown, sliver 1 normally passes from feed rollers 2 to take-up rollers 3 along the path 4 but, when a completed package is doffed, rollers 3 are stopped and sliver which continues to be delivered by rollers 2 slides down an inclined floor 5, and accumulates in zig-zag layers at the bottom of a storage compartment 6: when the rollers 3 are restarted, the accumulation is gradually taken up by the tension draft between rollers 3, 2, until the sliver is restored to the path 4.
Patent GB-1043969-A (GB)
Title: Needle motions for carpet looms
IPC: D03D39/02
Filed: 1964-10-29
Abstract: An Axminster weft insertion needle 10 is operated by a quadrant-driven rope 11 and, near the end of its inserting stroke, is retarded by two coil springs 34 that assist at the start of the needle withdrawal.  The rope wheel 12 drives a chain 19 that has an abutment 31 that, near the end of the stroke, co-operates with a member 27 attached to the springs 34.  The springs 34 may be replaced by a hydraulic or like accumulator.
Patent GB-1205530-A (GB)
Title: Improvements in and relating to roller bearings
IPC: F16C19/28
Filed: 1969-09-09
Abstract: 1,205,530. Bearings. TORRINCTON CO. 9 Sept., 1969 [10 Sept., 1968], No. 44509/69. Heading F2A. A pre-loaded roller bearing 12, Fig. 1, has an outer roll 14 provided with raceways 18, 20 and 22. Fig. 3, and has an inner race 10 which is a shaft (but could be a sleeve for example). The raceways 18, 20 and 22 have an axis 26, 28 or 30, respectively, and each axis is offset an equal distance from the axis 24 of the bearing. The axes 26, 28 and 30 are in fixed circumferentiallyspaced relation about the bearing axis 24. The bearing may be provided with side flanges 44, 46, Fig. 4, and with a cage 52 having staggered pockets which receive rollers 36 therein. The cage may have three parts 54, 56 and 58, Fig. 5 (not shown), or may be of one-piece construction.
Patent GB-446371-A (GB)
Abstract: 446,371. Radiators for aircraft. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and FORSYTH, A. G., Venlaw, Burdon Lane, Cheam, Surrey. May 29, 1935, No. 15649. [Class 29] [See also Group XXXIII] The front and rear surfaces of a tubular radiator c, Figs. 2, 5, particularly for an aircraft engine, are of convex and concave form respectively in plan and /or elevation, and a streamlined body f is arranged behind the radiator which is provided with a sliding shutter h. In a modification, the radiator is placed in front of the oleo leg of an aircraft, the leg or a casing k, Fig. 7, therefor being of the same form as the rear surface of the radiator. The radiator and the leg may be housed in a fairing m.
Patent GB-1003054-A (GB)
Title: Cartons and method and apparatus for making same
IPC: B65D5/70
Filed: 1962-11-27
Abstract: 1,003,054. Cartons. G. A. MOORE. Nov. 27, 1962, No. 44746/62. Heading B8P. [Also in Division B5] A liquid-tight carton lined with thermoplastics film material has all its interior seams formed so that they are impervious, and has all cut edges densely compacted to resist normal propensity for wicking absorption. The carton is made from two blanks 4 and 27 arranged in a cross-formation, the edges of the blanks being cut and compacted simultaneously. A dispensing end closure is formed, having an opening in the central panel 5 of the blank 4 and a corresponding portion of the panel 28 of the blank 27 being bounded on two sides by perforations 39, and is operable by a flap 40, as in Fig. 11. The opening may be rectangular or oval. When erected, the flaps 33 on the blank 27 lie against and are adhered to the external surfaces of the panels 8 of the blank 4. The panels 5 and 28 are provided with a pattern of clear lacquer to facilitate opening the carton.
Patent GB-1081943-A (GB)
Title: Improvements in stator assembly for turbines and compressors
IPC: F01D9/04
Filed: 1964-11-04
Abstract: 1,081,943. Gas turbine vane assemblies. GENERAL ELECTRIC CO. Nov.4, 1964 [Nov.27, 1963], No. 44941/64. Heading F1T. A gas turbine engine nozzle vane assembly comprises arcuate nozzle segments 25 having outer and inner shrouds 26, 27 attached to vanes 28, the shrouds having circumferentially extending flanges 31, 32 respectively abutting an annular flange 46 on the engine casing 12 and a support cone 40. The flanges are axially positioned midway between the leading and trailing edges of the vanes substantially in alignment with the throat T, Fig.4 (not shown), of each flow passage between the adjacent vanes. Each segment 25 is mounted on cone 40 by a bolt 43 passing tightly through hole 33 at the centre of flange 32 and by bolts passing loosely through holes 34, 35, so as to allow for thermal expansion. Adjacent segments 25 abut circumferentially at normal operating temperature. There may be, for example, six or twelve segments 25. The invention is applicable also to the mounting of compressor stator vanes.
Patent GB-1213079-A (GB)
Title: Primary cells
IPC: H01M50/434
Filed: 1969-09-11
Abstract: 1,213,079. Primary cell. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Sept., 1969 [14 Sept., 1968], No. 44948/69. Heading H1B. An atmospheric-oxygen depolarized primary cell comprises a zinc anode, a porous carbon cathode and an electrolyte-containing separator consisting mainly of silica gel, and preferably having a paper or textile material foundation and preferably incorporating paper fibres. The separator can be made from powdered silica gel by grinding and moistening with a water glass solution, then gelling and drying. Alternatively, the separator can be formed from water glass in situ, e.g. on the zinc anode. In the example, a cell is constructed from a porous zinc plate made by compressing zinc powder, impregnating it with an aqueous solution of sodium silicate containing sodium chloride, placing a PVC foil against one side of the zinc plate and a filter paper soaked in the said solution against the other side. A disc of carbon-containing paper is laid on the filter paper and the assembly is compressed and then the sodium silicate is gelled by the action of carbon dioxide. After drying the PVC foil is removed. The cells can be connected in series to form a battery.
Patent GB-1127639-A (GB)
Title: A method of generating electric current and an electric cell for practicing such method
IPC: H01M6/16
Filed: 1966-10-07
Abstract: 1,127,639. Primary cells. LIVINGSTON ELECTRONIC CORP. 7 Oct., 1966 [22 Oct., 1965], No. 45026/66. Heading H1B. An electric cell comprises a lithium metal anode, a cathode and an electrolyte consisting of lithium perchlorate dissolved in methyl formate. The cathode may be a metal salt or oxide (as depolarizer) mixed with carbon or nickel flake, and paper fibres, asbestos fibres or cellulose acetate as a binder, the mixture being supported on a metal screen. In Examples lithium metal anodes supported on nickel and silver screens are separated from the cathodes by blotting paper, glass-fibre mat and microporous rubber sheet, the cathodes being mixtures of cupric fluoride, silver chloride, graphite, acetylene black, nickel flake, paper pulp, cellulose acetate, asbestos fibres and polyethylene impregnated cellulose, supported on nickel and silver screens; the anodes, cathodes and separators are placed in polyethylene bags and solutions of lithium perchlorate in methyl formate added. Other depolarizers mentioned are silver, mercury, copper, lead, cobalt, nickel, chromium and manganese salts and oxides.
Patent GB-1207184-A (GB)
Title: Process for the manufacture of thermo-plastically processable heat-resistant and low temperature resistant polyurethane elastomers
IPC: C08G18/66
Filed: 1967-10-04
Abstract: 1,207,184. Polyurethane elastomers. ELASTOMER A.G. 4 Oct., 1967 [16 Dec., 1966], No. 45231/67. Heading C3R. Polyurethane elastomers are prepared in a single stage from a linear hydroxylpolycaprolactone of M.W. 1000 to 3000, a glycol of the formula wherein n is 1 to 12 and R is a phenylene or naphthylene radical and hexamethylene diisocyanate. The glycol is suitably hydroquinone diethylene glycol ether.
Patent GB-1273222-A (GB)
Title: Improvements relating to wire mesh enclosures
Inventor: JAMES WILLIAM
IPC: C05F17/02
Filed: 1969-09-13
Abstract: 1,273,222. Wire mesh containers. WILLIAM & H. H. JAMES Ltd. 17 July, 1970 [13 Sept., 1969], No. 45242/69. Heading B8P. [Also in Divisions C1 and F4] Means for making a wire mesh enclosure for use as a container comprise a plurality of panels 10 of wire mesh each having at least the comers of the panel (and preferably the entire top and bottom edges 13, 14) folded out of the plane of the panel and on the same side of said plane and a corresponding plurality of stakes 16 each for insertion through a mesh aperture at one upper corner of one panel and through an adjacent upper corner of the next panel and similarly through the adjacent lower corners of said panels and then for insertion into the ground below the enclosure. The enclosure may be packed flat and is quickly erected. Access is simply by removing one stake.