baber/WOPTO huggingface dataset:
Patent GB-1317019-A (GB)
Title: Sintered metal tubes formed by extrusion and having at least one end closed
IPC: B22F3/20
Filed: 1970-07-13
Abstract: 1317019 Extrusion of metal powder MINNESOTA MINING & MFG CO 13 July 1970 [14 July 1969] 33931/70 Heading C7D [Also in Division H5] A sintered metal tube closed at least at one end is made by extruding a powdered mixture of a metal or alloy and a binder. The tube is formed either by extruding the tube through a die against a pivoted closure plate to form the closed end, or a solid extruded powdered metal compact may be inserted into the open end of the extrusion and the assembly is then isostatically compacted and sintered. The metal powders may be Fe, Ni, W, Cu, Co or Mo or their alloys such as austenitic Cr-Ni steel, bronze, "MONEL" (trade mark) or W-Re. Oxide dispersed Ni, W or Mo containing 1-4% ThO 2  may also be used. As shown in Figs. 4 and 5 the powder-binder mixture 11 is extruded in die 10 against a pivoted plate 8 to form the closed end 6. The plate is then removed and the extrusion is completed as in Fig.5. In an alternative embodiment an extruded powder plug having a cross section matching that of the internal bore of the open extruded tube is inserted in the open end. After inserting a mandrel in the tube the assembly is isostatically compacted and then sintered after removal of the mandrel. The isostatic compaction is preferably effected after pre-sintering of the assembly. The inserted plugs may be the same as or different from the tube material and the tubes produced may be porous or impermeable to the passage of gases and liquids and used as filters, heat exchangers, thermo couple sheaths, and immersion heater sheaths.
Patent GB-325568-A (GB)
Title: Improvements in or relating to apparatus for the combustion of gaseous mixtures
IPC: F23D99/00
Filed: 1928-11-20
Abstract: 325,568. Premix Gas Plants, Ltd., and Docking. A. Nov. 20, 1928. Gas fires; radiants. - A burner comprises alternately plain and corrugated annular discs or strips, superimposed, located side by side or wound together into the form of a coil for dividing the gaseous mixture into a large number of small streams as it issues from the burner and high heat-resisting metal is disposed at or contiguous to the outer surface of the discs or strips for the purpose of being heated to incandescence. In one form of portable heater provided with a reflector 11, Fig. 1, the annular discs 4 are threaded on rods 6, having knife edges, between a mixing-chamber 7 and a porcelain cap 8, a coil 10 of nickel wire being disposed around the discs. Alternatively, a nickel gauze cone or cylinder may surround the heating element. In a second form, parallel coils 20, Fig. 6, of nickel iron are placed above the strips 18 arranged side by side in the top of a rectangular casing 14, the burner being mounted within a casing provided with a metal canopy or reflector
Patent GB-1535390-A (GB)
Title: Uhf tuner
IPC: H01P7/04
Filed: 1976-08-16
Abstract: 1535390 Resonators MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 16 Aug 1976 [19 Aug 1975] 34072/76 Heading H1W [Also in Division H3] A UHF tuner comprises a metal plate 13 stamped to form an outer conducting portion surrounding an opening and strip portions extending from an edge of the opening into the opening to form a resonance line 14 and a coupling line 19, 64 and a variable capacitance element 38 connected between the resonance line and the outer conducting portion to form a tunable resonant circuit. As shown, this provides the input circuit to a common base RF stage 134 having AGC applied at 86 to its base. Further similar resonant circuits are provided by metal casing 13 to provide resonance lines 15, 16 and 17 and coupling lines 20 and 21 associated with an inter coupling stage 138 and a transistor oscillator 135. A mixer diode 52 provides the IF output at 84. Tuning is obtained by variable capacitance diodes 38- 41. The lengths of the one-quarter wavelength transmission lines 14-16 can be changed by moving short-circuiting plates 26, 27 and 28 by inserting an insulating rod through bores 29- 34. Adjustment of trimming capacitor plates 22-25 is obtained via holes 2-4 in the cover plate 1, Fig. 2, which holes are covered by conductive foils 5-7. Connecting lines 35 and 36 together with holes 79 and 80 function to tap down the couplings of the coupling lines 19 and 20 to the resonance lines 14 and 15. A window 18 enhances the coupling between the resonance lines 15 and 16. The metal case 8 serves as a shield to prevent external radiation of the electromagnetic field generated by the lines. The coupling portion (92, Figs. 3 and 4, not shown) is cut after the wiring operation into separate portions 90 and 91. Modified arrangements of the openings and strips forming the lines are disclosed (Figs. 6 and 7, not shown). Lines (126 and 127) form a half-wave length resonance line when coupling portions (128 and 129) are cut away after wiring.
Patent GB-1223283-A (GB)
Title: Preparation of cymenes
IPC: C07C15/02
Filed: 1968-07-18
Abstract: 1,223,283. Cymenes. BADISCHE ANILIN- & SODA-FABRIK A.G. 18 July, 1968 [19 July, 1967], No. 34182/68. Heading C5E. Cymenes are prepared by reacting one or more methyldiisopropylbenzenes in a trans-alkylation stage with toluene in the presence of AlCl 3  and HCl, and reacting the resultant mixture, together with toluene, in an alkylation stage with propylene, the molar ratio of total benzene groups to total propylene groups being maintained between 1: 0À75 and 1: 0À95 in the transalkylation stage and between 1: 0À2 and 1: 0À8 in the alkylation stage. The reaction mixture from the transalkylation may be isomerized, with or without the addition of recycled undesired cymene isomers, in an isomerization stage before the alkylation stage. The transalkylation and isomerization may be carried out at 20- 75‹ C. and the alkylation at 20-110‹ C.. The starting material may be 1,2,4- and/or 1,3,5- methyldiisopropylbenzene. In an example for the production of p-cymene the final reaction product is distilled and toluene, undesired cymenes, methyldiisopropylbenzenes, xylenes and dimethylisopropylbenzenes are recycled.
Patent GB-960834-A (GB)
Title: Improvements in or relating to electric circuits for controlling the supply of electric current to a load
Inventor: PALEY DEREK BRIAN
IPC: G05F1/45
Filed: 1961-09-25
Abstract: 960,834. Control systems for consuming devices. GENERAL ELECTRIC CO. Ltd. Sept. 10, 1962 [Sept. 25, 1961], No. 34227/61. Heading H2H. A system for controlling the current through a load 8 such as neon lamps fed from an A.C. source 1 comprises a full-wave bridge rectifier 9 having one diagonal connected by a controlled rectifier 10 shunted through a transformer winding 16 by another rectifier 20. When rectifier 20 is fired a capacitor 19 is discharged through rectifier 10 thus blocking it. The signals applied to terminals 13, 23 may be between one eighth and twice the supply frequency and are derived from the A.C. source through an astable transistor network controlling a monostable circuit, the time interval between the two signals being varied to alter the conduction time of rectifier 10. Specification 960,833 is referred to.
Patent GB-637440-A (GB)
Title: Medicinal preparation
IPC: A61K38/01
Filed: 1946-11-20
Abstract: An internal medicine for gastro-intestinal diseases comprises a balsam dispersed in one or more bland fatty substances by heating and/or mechanical means to a balsam particle size of approximately 5 to 10 microns.  Balsam of Peru is preferred, although Balsam of Copaiba, Balsam of Tolu and Canada Balsam may be used.  The bland fatty substances are vegetable and animal fats and oils having no purgative or cathartic effect and comprise mutton tallow, lard, butter and lanolin, which is preferred. Mixtures of these may also be used.  Chlorophyll preferably in solution in oil, choline, esters thereof especially carbachol and amino acids, e.g., in the form of plasmolyzed yeast may also be added.  Plasmolyzed yeast extract consists of arginine, histidine, lysine, tyrosine, tryptophane, phenylalanine, cystine, methionine, threonine, leucine, isoleucine and valine.  In one method of preparation the materials are mixed, heated just sufficiently to melt the mixture and passed through a colloid mill.  In another, the balsam and lanoline is heated on a water bath at 212 DEG F with stirring until the dispersed resin is of the aforesaid micron size and the insoluble resin which settles to the bottom of the bath is separated therefrom.
Patent GB-471880-A (GB)
Title: The manufacture of water insoluble basic products in the presence of a substratum
IPC: D06P5/22
Filed: 1935-12-11
Abstract: Water-soluble products obtainable by the action of ammonia or a primary or secondary amine on an alkylating agent containing in the molecule at least 2 alkylating groups are convertible, in presence of a fibre or other substratum, into water-insoluble polymerization products.  The products have affinity for acids of high molecular weight, including acid dyestuffs, thus enabling the production of resins coloured with such dyestuffs and the fixation of the dyestuffs upon lake substrata and vegetable fibres.  In examples: (1) cotton yarn is impregnated with a solution obtained by adding epichlorhydrin to an aqueous solution of ammonia at 20--25 DEG  C. and is centrifuged, dried and heated for 1 hour at 120 DEG  C.; the treated yarn may be dyed with acid dyestuffs; (2) artificial silk goods are impregnated with a solution obtained by adding a -dichlorhydrin to a solution of triethylenetriamine in aqueous sodium carbonate and further treated as in (1); the treated goods may be dyed with acid dyestuffs; if the goods are further treated with dimethyl sulphate in an organic solvent, dyeings fast to washing may be obtained in a neutral or alkaline bath; (3) artificial silk is impregnated with a solution obtained by adding epichlorhydrin to an aqueous solution of technical polyethylene polyamine from which the constituents boiling under 6mm. pressure up to 220 DEG  C. have been removed, the impregnated material is dried, heated for 1 hour at 100 DEG  C., washed, and introduced into an emulsion containing methyl p-toluenesulphonate and sodium carbonate, the emulsion being then slowly heated to 80--85 DEG  C. and so maintained for 1 hour, whereupon the material is rinsed and hot soaped; the treatment imparts a soft smooth feel to the material; (4) artificial silk is similarly treated with replacement of the epichlorhydrin by ethylene bromide.
Patent GB-297257-A (GB)
Title: Improvements in and relating to tents
IPC: E04H15/60
Filed: 1927-12-20
Abstract: 297,257. Mackrill, A. V. Dec. 20, 1927. Tent poles. - A telescopic tent pole is formed of two poles with adjacent ends adapted to slide in a metal sleeve a which is slotted and has therein two plates c with lugs d to engage the slots and a spring g between them.
Patent GB-190911-A (GB)
Title: Improvements in electric switch boxes
IPC: H02B1/00
Filed: 1921-12-22
Abstract: 190,911. Davis, A. L. Dec. 22, 1921. S w i t c h - boards; switches, quick - action. - Explosion - proof multiple switch boxes of the builtup construction described in Specification 185,289, comprise a number of similar covered switch units detachably mounted beneath interlocking bases 10 along a closed cable troughing 39, 49. Each unit comprises a switch bar 12 fulcrummed at 13 in a bracket 11, a guided plunger 16 having a pin-and-slot connection with the switch bar, a coiled spring with its free end guided in a slot 22 of the bracket and co-operating with the heart-shaped cam-formation 18 on the switch bar to produce a quick action, and a fingerlever 32 connected at 28 to the plunger and at 30 with an external part of the bracket 11 so that pressure on one end of the lever will close the switch, and pressure on the other end will open it. Each individual switch is enclosed by a box 33, 34 secured by a screw 26 passing into the hollow guide 27 and carrying external terminals consisting of terminal blocks 42 located against shoulders in the insulating block and terminal screws 43 slotted so as to be resilient and self-locking. Similar terminal connections 45 for the incoming cables are located on insulating blocks in an extension of the cable troughing.
Patent GB-1016167-A (GB)
Title: Fluid-flow control valves
IPC: F16K15/02
Filed: 1962-09-10
Abstract: 1,016,167. Valves. BERG AIRLECTRO PRODUCTS CO. Sept. 10, 1962 [Sept. 14, 1961], No. 34539/62. Heading F2V. A fluid-actuated valve for a vehicle brake-system is provided with a housing 1 forming a chamber 5 into which open a pressure supply port 6, an exhaust port 9, which may lead to atmosphere, and working ports 7, 8, whilst a closure member 10 in the chamber 5 is movable between opposed ports 6, 9. The member 10 consists of a perforated metal disc 11 of smaller diameter than the chamber 5 partly covered with an element 19 of flexible material e.g. rubber, moulded thereto, the perforations serving to additionally hold the element in place; the member 17 embodies annular beads 16, 18 on opposite sides of the disc 11, as well as a thin peripheral lip 17a of greater diameter than the chamber and which contacts the wall of the latter. Upon applying pressure fluid to the inlet port 6 the member 10 is moved bodily and the bead 8 seats around the exhaust port 9; the pressure flexes the lip 17a away from the chamber wall and enables the fluid to pass to the working ports 7, 8. When the pressure at the inlet port 6 is sufficiently reduced the pressure in the ports 7, 8 and to the right of member 10 moves the latter so that the bead 16 seats around the port 6, at the same time urging the lip 17a into sealing contact with the chamber wall whereby the ports 7, 8 are open to the exhaust port 9.
Patent GB-499371-A (GB)
Title: Improvements in treating textiles and oils therefor
IPC: H04N5/08
Filed: 1937-04-20
Abstract: Non-mineral oils for lubricating textiles are given an addition of less than 1 per cent of an organic S compound excepting sulphonates, sulphonated oils, xanthogenates, thiophosphoric esters and compounds of the formula R-S-R1-(COOH)n, in which R represents a fatty radicle and R1 an aliphatic or aromatic hydrocarbon radicle, to inhibit oxidation of the unsaturated compounds in the oil.  The organic S compound may contain the group S=C, may be a thiourea, a thiocarbamate, a dithiocarbamate, or a disulphide such as a thiuram disulphide. Other compounds suitable are thioglycollic acid, thialdine, thiocarbanilide, thiosemicarbazide, thiodiphenylamine, mercaptobenzthiazole and the substances known under the Registered Trade Marks "Vulcafor TMT" and "Vulcafor TET." Most of these compounds are also vulcanization accelerators for rubber.  The added S compound must have a solubility in the oil of at least 0,1 per cent. must not discolour the oil and an addition of under 1 per cent to a solution of 0,1 per cent of ferric oleate as catalyst in pure ethyl oleate should be sufficient to reduce the exothermic reaction in the Mackay test [Jour. Soc. Chem. Ind. 1896 (15), 90].
Patent GB-1423786-A (GB)
Title: Trochoid type rotary piston engine
IPC: F01C19/00
Filed: 1973-07-20
Abstract: 1423786 Rotary positive-displacement machines DORNIER SYSTEM GmbH 20 July 1973 [16 Aug 1972] 34618/73 Addition to 1382132 Heading F1F The main invention is improved or modified in that the sealing elements 2a, 2b are furnished with permanent magnets 5, 6 to keep them in contact with the transition sealing elements 3 and radial sealing strips 4, which are made of a magnetizable material at least in the regions of the magnets. The radially inner edge of each strip 4 may be semicylindrical and engage with a similarly shaped depression in the element 2b.
Patent GB-408394-A (GB)
Title: Improvements in or relating to means for measuring or setting out angles
IPC: G01C1/00
Filed: 1932-12-07
Abstract: 408,394. Grinding. BLAY, G., and SWIFT, E. A., Upper Market Street, Woolwich, London. Dec. 7, 1932, No. 34671. [Class 60.] In apparatus for measuring or setting out angles, a screw carrying an indicator to be engaged with a part to be set, e.g. a rotary table, is axially movable by rotation of a nut and has fixed thereto an arm engaging a cam shaped to cause rotation and additional axial movement of the screw so that equal angles of movement of the nut correspond to equal angles subtended by the axial displacement of the screw at a fixed point, e.g. the centre of the rotary table. In a modification the nut may be axially movable and carry the indicator. In a form adapted to be attached at 76 to a surface grinding machine, the work during a grinding operation is placed against the accurately ground side face 78<1> of an arm 78 on a spindle 77 rotatably mounted in the supporting plate 75. A sector plate 79 fixed to the spindle 77 has a number of accurately spaced holes 80 to accommodate a removable setting pin 81, which is brought into contact with the contact arm 83 when setting the arm 78. The arm 83 supported on the screw 11 is adjustable by the nut 12, arm 34 and cam 38, so shaped that upon axial movement of the screw 11 due to rotation of the nut 12, a rotation and further axial movement of predetermined amount is given to the screw 11 and saddle 22. The cam may also be shaped to compensate for inaccuracies of the thread.
Patent GB-1072942-A (GB)
Title: Improvements in torque converters
IPC: F16H29/22
Filed: 1962-09-11
Abstract: 1,072,942. Variable-speed ratchet gear. G. H. BRADBURY. Dec. 9, 1963 [Sept. 11. 1962], No. 34722/62. Heading F2D. A variable-speed ratchet gear comprises an automatically variable throw crank 50 connected to an input shaft 1 and driving a coaxial output shaft 2 through links 51, circumferentially equi-spaced two-armed levers 53, 55 pivoted on a rotatable cage 3, links 56, and oneway friction clutches 60, the cage 3 reacting, through a one-way friction detent, on a stationary casing. The crank 50 is carried by one of two centrifugal weights (34) (Fig. 3, not shown), on linked, spring-returned discs 29 rotatably mounted on a disc 27 connected to the input shaft 1. The one-way dotent for the cage 3 (Fig. 6, not shown) comprises a cam 22 which is rigid with a spring-biased arm 24 pivoted on the stationary casing 10, is pivoted in rings 17 engaging with frictional drag a boss 7 of the cage 3, and is engageable with the boss 7. The one-way clutches 60 comprise cams 65 which are engageable with discs 57, 58 fixed on the output shaft 2, are pivotally mounted on arms 61, 62 rockable about the output shaft, and are fast with arms 68 pivoted to the links 56. The input shaft 1 may be an engine crankshaft and may carry a flywheel. The crank throw is automatically varied in accordance with input speed and transmitted torque being acted on by the centrifugal weights 34 and the load reaction acting in opposition. The output shaft may overrun the input shaft.
Patent GB-448248-A (GB)
Title: Improvements in or relating to drum brakes
IPC: B61H1/00
Filed: 1934-12-03
Abstract: 448,248. Brakes. ELLIS, G. B., 70, Chancery Lane, London.-(Bergische Stahl- Industrie ; Remscheid, Germany) Dec. 3, 1934, No. 34740. [Class 103 (i)] Railway brakes comprise two blocks b, c adjacent to one another on one side of a diameter of the drum and radially movable along different radial directions by a common brake lever f. The block b is mounted on a lever d mounted on a fixed pivot g and pivoted at i to the lever f carrying the other block c and connected at its upper end to air pressure and oil operated cylinders k, k<1> respectively. The other end of the cylinders are connected to a similar set of brake blocks on the other side of the wheel. In order to maintain the shoes at the same distance from the drum when the position of sprung and unsprung parts of the vehicle vary due to loading the return springs o of the shoes are connected to opposite ends of a lever n mounted on the sprung vehicle body. The lever n, is connected by a link r to the unsprung part of the vehicle. The pivot g is carried on the vehicle body. By this means the shoes move over the braking surface but do not vary the distance from this surface.
Patent GB-911933-A (GB)
Title: Mechanical oscillator
Inventor: BRETON DENIS
IPC: F16H27/02
Filed: 1960-10-11
Abstract: 911,933. Linkwork. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 11, 1960 [Oct. 30, 1959], No. 34785/60. Class 80 (3). Mechanism for oscillating a member 8 in accordance with either a sinusoidal waveform S or a square waveform C, selectively, comprises an arm 14 pivotally mounted on a fixed point 42, one end being connected by a link 41 to a forked slider 40 which is oscillated by a variable-throw crank 10, an arm 15 pivoted at one end on the point 42 and having its other end connected by a link 43 to the member 8, and means whereby the arm 14 may be linked continuously with the arm 15, in order to produce the sinusoidal oscillations, or may be linked periodically to the arm 15, in order to produce the square waveform oscillations. The linking means comprise a pivoted arm 34 actuating a movable key -16 carried by the arm 15 and controlled by an electromagnet 17 and opposing spring 36. Adjustable sliders 19, 20 are clamped on a graduated segment 23 and have notches 21, 22 which may be engaged by the key 16 to lock the arm 15 in its extreme positions during the square waveform oscillations. As shown, every ten and a half oscillations of the arm 14 an electric relay operates to engage the key 16 with a notch 29 in the end of the arm 14 in order to transfer the arm 15 from one extreme position to the other in accordance with the waveform C shown in Fig. 1.
Patent GB-768388-A (GB)
Title: Lifting device for motor vehicles
Inventor: SCHIERLOH HERMANN
IPC: B66F7/28
Filed: 1954-12-01
Abstract: 768,388. Garage lifts. BECKER, R., and BECKER, nee PFIRSCHING, A., [trading as BECKER & SOHNE MASCHINENFABRIK, J. A.]. Dec. 1, 1954, No. 34794/54. Class 78 (3). A garage lift comprises a horizontal girder 2 secured to the top of a ram 1 and pivoted to pairs of horizontally swinging arms A provided with vertically adjustable vehicle supporting pads 9. The arms A are pivoted at 5 to members 3 which are slidable along girder 2, whilst the pads 9 are slidable along arms A. In a modification (Figs. 5, 6, not shown) the arms each comprise a plurality of pivotally interconnected links which can be moved into a stowed position between the flanges of girder 2 and which can be locked in their operative positions by catches or the like (not shown). Specification 683,600 is referred to.
Patent GB-342803-A (GB)
Title: Improvements in change-box mechanism for looms
IPC: D03D43/00
Filed: 1929-11-15
Abstract: 342,803. Loom change-box motions. FARNWORTH, T., Orient Mills, Brandwood Street, Bolton. Nov. 15, 1929, No. 34892. [Class 142 (iii).] A change box to replace an ordinary single shuttle box comprises two or more cells a, a<1>, preferably of sheet metal, mounted on levers c, c<1> which straddle the slay and are pivoted at f below it. One bracket c carries a roller v engaging a fixed cam w which causes the change-box to slide endwise so that the shuttle will clear the picker when another cell is being brought into line with the beam. The rod 5 for operating the box has collars fixed to it between which are sliding sleeves 9 and a spring 8. The shoulders 9a of the sleeves engage the lugs 6b, 6c of the operating link 6.
Patent GB-632555-A (GB)
Title: Improvements relating to moulding compositions
IPC: C04B26/00
Filed: 1947-12-31
Abstract: A composition for use in making statuary, architectural ornaments, lay figures and dolls comprises modelling clay, fibrous paper pulp, or comminuted paper, glue, boiled linseed oil and borax dispersed in hot water.  A preferred composition consists of 20 Kgs. modelling clay, 1 1/2 Kgs. comminuted or pulped paper, 2 1/2 Kgs. carpenter's glue, 1/2 Kg. boiled linseed oil and 200 grams borax.  This composition is then mixed with 20 Kgs. of hot or boiling water to form a dough which is filled into a greased mould, and at the end of about 20 minutes the material which is still liquid is emptied out leaving a thin shell adhering to the mould.  The thin shell may then be air-dried.