baber/WOPTO huggingface dataset:
Patent GB-495415-A (GB)
Title: Improvements in or relating to combinations of an electric discharge device and material adapted to be excited to luminescence by the discharge in the device
IPC: C09K11/02
Filed: 1937-05-14
Abstract: 495,415. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and RANDALL, J. T. May 14, 1937, Nos. 13669 and 30395, (the second Provisional Specification being divided out of the first Provisional Specification). [Class 98 (i)] Magnesium tungstate or zinc tungstate is used as luminescent material outside the quartz or like envelope of a high-pressure mercury-vapour electric discharge lamp. Both materials have similar luminescent properties and efficiencies, being a very pale unsaturated blue. The material may be placed on the interior of a bulb enclosing the quartz envelope. The tungstates are prepared as described in Specifications 469,732 and 469,913. Luminescent material, e.g. zinc-cadmium sulphide activated by copper, may be added to emit red light, yielding a resultant flesh tint. Specifications 184,485, [Class 98 (ii)], 431,409, [Group XL], and 468,238 also are referred to.
Patent GB-327879-A (GB)
Title: Improvements in or relating to metal faced plywood or other boards
IPC: B27D1/04
Filed: 1929-05-02
Abstract: 327,879. Venesta, Ltd., and McAllister, J. May 2, 1929. Boards.-The surface of the wood a is covered by metal sheet b the edges b<1> being upturned. The edges of the wood are protected by channels c the edges of which are bent to form seams with the sheet b. The corners of the protective strip are cut to a mitre to prevent unnecessary overlapping.
Patent GB-1311425-A (GB)
Title: Process of forming a modified portland cement
IPC: C04B7/32
Filed: 1971-05-07
Abstract: 1311425 Cements PORTLAND CEMENT ASSOCIATION 7 May 1971 [20 Nov 1970] 13789/71 Addition to 1214779 Heading C1H Cement raw meal containing alumina is burnt in the absence of steam but in the presence of Ca halide, the amounts of alumina and halide being sufficient to form 1-30% of the ternary compound 11CaO.7Al 2 O 3 CaX 2  (X being halide) and the product ground with anhydrite and either Ca or MgCO 3 , e.g. to a fineness of 4601 cm.<SP>2</SP>/gm. At least 0À5% of Al 2 O 3  is present in the raw meal.
Patent GB-201304-A (GB)
Title: Improvement in or relating to apparatus for power production
IPC: F22B3/04
Filed: 1922-05-16
Abstract: 201,304. Benson, M. May 16, 1922. Regulating delivery by varying speed and pozver of motor, or by by-passes.-A pump 3 used in improved apparatus of the kind described in Specification 201,296, [Class 122 (iii), Steamengines, Kinds &c.], has cylinders connected to cranks on a shaft driven by an electric motor, or driven directly by a turbine. A spring-loaded accumulator 4, or a compressed-air or gas reservoir is arranged in the feed line to maintain a constant pressure, and controls a rheostat 5 connected to the motor. If the pump is driven by a turbine, the accumulator operates a by-pass in the pump delivery.
Patent GB-637639-A (GB)
Title: Improved type of moisture-extraction box for paper-making machines
IPC: D21F1/52
Filed: 1948-05-22
Abstract: 637,639. Suction boxes of paper-making machines. BERTRAMS, Ltd., and INGLIS, J. May 22, 1948, No. 13917. [Class 96] The top 4 of a suction box 1. of a paper-making machine is held in a frame 3 which is so fitted to the top of the suction box 1 as to be immediately detachable on removing the box from beneath the wire or felt 5. As illustrated, the top 4 is slotted and slides in grooves 12 of the frame 3, spigots of which rest in recesses 10, where jointing material may be provided. Internal crosspieces may bridge the frame 3 and adjustable end-stops 8 limiting the suction opening in accordance with the width of the paper being made are provided. The frame 3 may be held down by latches. In a modified form, the slotted top 4 is substituted by spaced spars. The body of the box may be made of timber, cast metal or welded, riveted or bolted plates, or of extruded light aluminium alloy; the box may be flexibly supported to allow it to oscillate transversely.
Patent GB-1081835-A (GB)
Title: A method of producing organoaluminium compounds
IPC: C07F5/06
Filed: 1966-03-29
Abstract: Isotactic high molecular weight polyacetals are prepared by polymerizing acetaldehyde at low temperature and preferably in a closed vessel in the presence of a compound <FORM:1081835/C3/1> where R1 and R2 may be alkyl, aryl, cycloalkyl or aralkyl and R3, R4 and R5 may be the same as R1 and R2 or a hydrogen atom and M is lithium, sodium or potassium, the organo-aluminium compound being dissolved in an inert organic solvent.  In the examples acetaldehyde is polymerized in the presence of (iv) pentaethyl dialuminoxalithium in toluene, (v) diethyltrimethyl dialuminoxalithium in toluene, (vi) pentaethyl dialuminoxasodium in toluene.ALSO:A compound of formula <FORM:1081835/C2/1> where R1 and R2 are alkyl, aryl, cycloalkyl or aralkyl; R3, R4 and R5 are alkyl, aryl, cycloalkyl, aralkyl or hydrogen and M is lithium, sodium or potassium is produced by reacting R1R2AlOM with R3R4R5Al at a temperature between -50 DEG  and 100 DEG  C. in an inert solvent which may be an aromatic or aliphatic hydrocarbon, or a polar solvent, the reaction being carried out under nitrogen.  The compounds where R1, R2, R3, R4 and R5 are not all the same are claimed per se. These compounds may be used as polymerization initiators in the low temperature preparation of isotactic polyacetals from acetaldehyde (see Division C3).
Patent GB-699129-A (GB)
Title: Improvements in or relating to monitoring apparatus using radioactive material
Inventor: COOKE-YARBOROUGH EDMUND HARRY
IPC: B07C5/34
Filed: 1951-06-13
Abstract: 699,129. Circuit of radiation-responsive devices. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 13, 1951, No. 13990/51. Class 40 (iii). An electric circuit is controlled by two pairs of detectors, one responsive to penetrating radiation and the other to soft radiation, the arrangement being such that when both detectors are excited or unexcited the circuit takes up one state of operation, but when a selected detector only is excited the circuit takes up an alternative state. The invention is applied to testing whether each, of a number of cartons 2 on a conveyer is filled. A source of penetrating radiation 4 such as strontium yttrium 90 and a light source 5 may be situated at one side of the conveyer belt and a Geigermuller tube 7 and photo-cell 8 at the other. The source of penetrating radiation and Geiger tube are situated just below the correct filling level of the cartons. The Geiger tube and photo-cell are so connected to the trigger electrode of a cold cathode tube 10 fed with a fluctuating voltage that radiation impinging on the one raises the potential of the trigger electrode while light impinging on the other lowers it. The arrangement is such that if the Geiger tube only receives radiation the coldcathode tube will trigger but neither the photocell alone nor the photo-cell and Geiger together can trigger. Thus if a carton is not correctly filled, light is cut off from the photo-cell but the radiation received by the Geiger tube is sufficient to trigger the cold cathode tube operating a relay 12 in the cathode circuit. A correctly filled carton interrupts both radiation beams and the tube will not trigger. In the space between two cartons both tubes receive radiation holding the trigger electrode potential constant. Specification 699,081 is referred to.
Patent GB-1456731-A (GB)
Title: Clad generally curved surfaces
IPC: E04D3/38
Filed: 1974-03-29
Abstract: 1456731 Fixing cladding plates to supporting network CHEMISCHE WERKE HULS AG 29 March 1974 [31 March 1973] 14002/74 Heading E1W A curved cladding structure comprises plates supported above a network of, e.g. cables, by spacers 1.1, each in combination with a clamp comprising a pair of plates 3.1, 3.2 sandwiching between them grooved members 3.4 into which the edges of the cladding plates are inserted, the members 3.4 and the plates 3.1, 3.2 being spaced apart by filler members 3.3. The cladding plates may have their edges reinforced by generally T-sectioned strips such as 8.1, 8.2, thereby allowing bolts 5.2 to provide additional fixing strength. The clamps may be elongate, or alternatively the grooved members 3.4 alone may be elongate. The spacers may be elastic, e.g. of unsaturated ethylene-propylene rubber, or rigid. The cladding plates may be of aluminium, plastics, reinforced or otherwise. The clamping plates may be of reinforced plastics or metal, and the filler plates of unsaturated ethylenepropylene rubber.
Patent GB-949897-A (GB)
Title: Improvements in healds and heald shafts for looms
IPC: D03C9/02
Filed: 1962-04-11
Abstract: 949, 897. Threading loom healds. LANEROSSI S. p. A. April 11,1962 [Sept. 2,1961], No.14025/62. Headings D1E and D1M. To facilitate drawing in a warp, a cord 5 engaged with a ring 3 on each heald is permanently mounted on the heald frame by looping it round uprights at the ends of the frame. By sliding the cord 5 up to the eyes 2, the eyes are aligned in one plane for threading. During weaving, the cord and rings rest at the bottom of the heald frame.
Patent GB-1416648-A (GB)
Title: 1,2-diphenyl-ethane derivatives
IPC: C07C37/055
Filed: 1973-03-23
Abstract: 1416648 1,2-Diphenyl-ethane derivatives BIOREX LABORATORIES Ltd 11 March 1974 [23 March 1973] 14048/73 Heading C2C Novel compounds of the Formula I wherein R is hydrogen, alkyl or acyl derived from carboxylic acid, X is hydrogen or halogen and R<SP>1</SP> is an alkyl radical may be prepared by alkylating a dexoxyanisoin of the formula wherein R<SP>11</SP> is alkyl, with 2,2,2-trifluoroethyl iodide to yield a compound of the formula followed by reaction with an alkyl magnesium iodide to give a carbinol of the formula followed by hydrogenation to yield a compound of the formula optionally followed by dealkylation to give the corresponding 4,4<SP>1</SP>-dihydroxbibenzyl which is optionally acylated or etherified at 4,4<SP>1</SP>- positions. Compounds of the Formula I in which X is halogen may also be prepared by halogenation of the corresponding compound in which X is hydrogen. Pharmaceutical compositions comprising at least one compound of the Formula I in admixture with a solid or liquid pharmaceutical diluent or carrier are claimed with oestrogenic activity.
Patent GB-1255006-A (GB)
Title: Hydraulic piston and cylinder machines
Inventor: FIRTH DONALD
IPC: F01B1/06
Filed: 1968-03-22
Abstract: 1,255,006. Cams. NATIONAL RESEARCH DEVELOPMENT CORP. 20 March, 1969 [22 March, 1968], No. 14082/68. Heading F2K. [Also in Division F1] In an hydraulic multi-cylinder machine having a piston, reciprpcable in each cylinder, each piston having a cam-following surface for engagement with a sinuous cam surface, the latter is so profiled that it imposes on each piston a relatively low rate of change of velocity when its cam-following surface is traversing a cam crest, and a relatively high rate of change of velocity when its cam-following surface is traversing a cam trough. This is achieved by a cam surface in which the minimum radius of curvature of a cam crest is larger than the minimum radius of curvature of a cam trough. Formulµ and graphs are given for obtaining constant torque for certain piston/cam lobe ratios, with and without the introduction of dwell sections at the end of each stroke.
Patent GB-931677-A (GB)
Title: Improvements in and relating to the production of artificial threads
Inventor: WATSON JAMES
IPC: C08G69/10
Filed: 1961-04-19
Abstract: The process according to Claims 8 to 23 of the parent Specification (wherein an optically gamma-methyl glutamate N-carboxy anhydride is polymerized in an organic solvent for the polypeptide formed and the solution is extruded into a setting medium so that the polypeptide is in the alpha configuration on extrusion, and the resultant fibre is stretched to convert the polypeptide into the beta configuration) is modified in that the polymerization step is carried out at an elevated temperature using a concentration of gamma-methyl glutamate N-carboxy anhydride in the solvent such that the resulting polypeptide solution contains at least 14% by weight of the polypeptide and the anhydride and all the polypeptide formed dissolve in the solvent and remain in solution therein.  The polymerization may be carried out at the boiling point of the solvent if it is a single compound or an azeotropic mixture of two or more compounds, or at the boiling point of the lowest boiling constituent if the mixture is non-azeotropic.  When solvents containing a major proportion of methylene chloride are used in the polymerization step, the latter may be carried out at or near the boiling point (40 DEG C.) of methylene chloride, for example under refluxing conditions.  The preferred solvents are mixtures of methylene chloride and ethyl acetate.  In an example, a solution of 24,5 parts by weight of gamma-methyl-L-glutamate N-carboxy anhydride in 100 parts by weight of a mixture of 12 volumes of methylene chloride and 5 volumes of ethyl acetate are heated under a reflux condenser to 40 DEG C. and 0,16 part of tri-n-butylamine added as a polymerization catalyst. The resultant solution contains about 15% by weight of the polymer and is concentrated to 16% polymer content by exposure to a vacuum. The solution is wet spun into acetone, washed with water and stretched 83% while still wet.
Patent GB-633506-A (GB)
Title: Improved mounting for floating axles, in particular for rail vehicles
IPC: B61F5/32
Filed: 1947-05-27
Abstract: 633,506. Axle mountings. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. May 27, 1947, No. 14113. Convention date, May 27, 1946. [Class 103 (vi)] In a floating axle mounting, of the type in which the axle box 3 is pivotally secured to the sub-frame 7 by means of a swing-lever 4, 5, the helical springs 15 for transmitting the load from the axle box to the sub-frame are passed through apertures in the arms 4, 5 of the swing lever, fore-and-aft of the axle. The balance arm 18 supporting one pair of spring ends could instead be pivoted at the top of the axle box, the springs still passing through the lever arms 4, 5.
Patent GB-667782-A (GB)
Title: Improvements in and relating to power transmission apparatus
IPC: F16D25/065
Filed: 1949-05-27
Abstract: 667,782. Friction clutches. SCAIFE, A. A. May 25, 1950 [May 27, 1949], No. 14295/49. Class 80 (ii). Segmental shoes 4, radially guided on one shaft 14 by attached pistons 9, are moved outwards into frictional engagement with a surrounding drum 2 on the other shaft 1, by hydraulic pressure supplied through a central tube 15 to the hollow interior of the guide-pistons 9; and are retracted inwardly also. by hydraulic pressure supplied to the outer faces 9a of shoulders on the pistons through a shaft-channel 14' around the tube 15, passages 18, annular grooves 11 in piston-guiding liners 8 screwed in shaft-bores, and axial drillings 12 in the liners.
Patent GB-611873-A (GB)
Title: Improvements relating to electro-magnetic clamps, vices and the like
IPC: B25B11/00
Filed: 1946-05-11
Abstract: 611,873. Vices and clamps. JACKSON, H. May 11, 1946, No. 14319. [Class 61 (ii)] Also in Groups XXII and XXXV] A clamp or work-holder is provided with two jaws movable relatively to the base in which means are provided to lock one jaw on the base and electromagnetic means to move the jaws together. A clamp, Fig. 1, has a fixed jaw 1 to which is attached a perpendicular squared rod 3 on which a collar 5 slides. This collar has two flanges, one parallel to the rod 3 and the other perpendicular to it. These flanges each carry an electromagnet. The polepieces of a magnet 7 are in sliding contact with the rod 3 and when energized, fix the collar 5 in position on the rod. The poles of the magnet 8 are placed near an armature 10 fixed to another jaw 9 which is loosely mounted on the collar 5. This magnet when energized pulls the jaw 9 towards the jaw 1. The circuits of the two electromagnets are arranged in parallel. An articulated rod 13 is provided carrying an inspection lamp. In the vice shown in Figs. 3 and 4, one jaw 23 is fixed to guide rods 22 which slide in the body 20 of the vice and are locked in place by blocks 31 engaging the sides of wedge pieces 30 fixed on the rods 22. The blocks 31 are spread apart, when the electromagnet 34 is energized, by the wedge 33a, Fig. 3, attached to the armature 33 and the wedge 31. The movable jaw 24 engages at the back, a wedge which is attached to the armature 27 of the magnet 28 and this when energized pulls the wedge up and moves the jaw 24 forwards. In a modification, teeth are provided on the rods 22 which engage with corresponding teeth of smaller size on the armature of the magnet when energized. The movable jaw is then directly in contact with the other magnet.
Patent GB-571288-A (GB)
Title: Improvements in or relating to manometers
IPC: G01L7/18
Filed: 1943-09-03
Abstract: 571,288. Manometers. PRYNN, L. J. Sept. 3, 1943, No. 14400. [Class 106 (ii)] A manometer applicable for use as a sphygmomanometer consists of a graduated glass tube T connected at its lower end with a mercury reservoir and backed by a scale S fixed in the frame F, the tube T being disposed within the confines of the frame F, and the scale being bent to a sharp V- section, the angle of which rests firmly against the frame. The tube may be viewed through a screen P of celluloid or the like. The frame may have a number of key-hole type slots for engagement with screws A on a mounting board R.
Patent GB-848633-A (GB)
Title: Preparation of detergent compositions
IPC: C11D10/04
Filed: 1959-04-28
Abstract: A process for obtaining a soap-containing sodium N-tallow acyl-N-methyl tauride composition in a fluid condition below 120 DEG C. comprises adjusting the soap content to 2-18%, preferably about 8%, by weight of the total non-aqueous ingredients, and the water content to 20-30%, preferably about 25%, by weight of the total composition.  This is suitably achieved by adding to the composition of soap and tauride which is initially at a temperature above 130 DEG C., generally 150-160 DEG C., water of such a temperature that the final mixture has a temperature above 65 DEG C., usually 90-100 DEG C.  If the soap content is not up to the desired level, soap or caustic soda may either be added to the water to be used, or the soap level adjusted first before the water is added.
Patent GB-911850-A (GB)
Title: Vehicle transmission systems
Inventor: TOLLEY NOEL PATRICK
IPC: F16H61/46
Filed: 1960-04-26
Abstract: 911,850. Hydraulic transmission of power. LUCAS (INDUSTRIES) Ltd., JOSEPH. April 19, 1961 [April 26, 1960], No. 14539/60. Class 69 (2). [Also in Group XXXI] A motor vehicle transmission having an engine-driven pump 1 of the swash plate-type supplying a fluid activated motor 3 which drives the vehicle wheels comprises a servo cylinder 13, the piston 14 of which varies the angle of the cam plate 2 of the pump, a spring 15 biasing the piston 14 towards the position of maximum obliquity of the cam plate, there being a line 10 connecting the output and input sides of the pump having a pair of restricting orifices 11 and 12, the end of cylinder 13 remote from the spring 15 being connected to the line 10 between the orifices 11 and 12 and the other end of the cylinder being connected to the line 10 on the pump return side of the orifices, the orifice 11 being bridged by a variable orifice or valve 16 connected to the engine throttle control 17 whereby, as the engine throttle is closed the valve 16 is opened, so submitting the one end of cylinder 13 to a greater proportion of the pump output pressure and narrowing the obliquity of the earn plate 2, increasing the transmission ratio. The arrangement also provides that when the engine is operating at a fixed intermediate throttle setting, the transmission ratio will vary according to the required torque. The pump-motor circuit includes the pump output line 6, and return line 5 and reversing valve 9 which may also be put in a neutral position wherein the lines 5 and 6 are connected. A reservoir 8 is connected through non-return valves 7 to the lines 5 and 6 and to the pump and motor.
Patent GB-769659-A (GB)
Title: Anti-skid brake control apparatus
IPC: B64C25/42
Filed: 1955-05-20
Abstract: 769,659. Anti-skid brakes. GOODYEAR TIRE & RUBBER CO. May 20, 1955 [Nov. 10, 1954], No. 14560/55. Class 103 (1). The control circuit of an anti-skid brake control unit, particularly for aircraft, comprises a polarized relay 11 in which the contact 12 is closed with leads 13 and 14 according as to whether the current produced by a wheeldriven generator 8 is increasing or decreasing respectively above a certain rate, the closing of contact 12 with either lead 13 or 14 causing through relays 16 or 27 the energization of coil 18 to vent the brake cylinder to avoid wheel skid, and is characterized in that a further relay 46 is provided which, if the acceleration is even greater than that necessary to operate relay 11, operates to short out to earth the coil 10 of relay 11 so as to permit normal brake operation. The control circuit includes a motor timer 37 which interrupts the power supply lead 4 to the relays 11, 16, 27 and 31 should any relay contact fail to release properly after a predetermined period, a warning lamp 7 then being illuminated to indicate the improper condition.
Patent GB-406524-A (GB)
Title: Improvements relating to folding and adjustable chairs
IPC: A47C4/40
Filed: 1933-05-20
Abstract: 406,524. Folding chairs. WAYMAN, A. H., 37, St. Germans Road, Forest Hill, and SMITH & SONS, (CHAIRS), Ltd., E., 9, Canal Road, Kingsland Road, both in London. May 20, 1933, No. 14597. [Class 52 (ii).] A folding adjustable chair comprises a frame a forming the rear legs and the front rail, a frame b forming the front legs f, a third frame c forming the back, links k and m both pivoted to the lower end of the back frame c and also to the front and rear legs respectively, means such as a cross bar near the lower end of the back frame adapted to abut against the upper sides of the rear legs, links l forming arm rests pivoted to the upper end of the front frame b and to the back frame c, and means such as notches h near the front of the frame a adapted to coact adjustably with the front frame b, as by engaging a cross-bar g therein. The seating surface consists of a strip of canvas &c.