baber/WOPTO huggingface dataset:
Patent GB-487686-A (GB)
Title: Improvements in or relating to engine valve gear, particularly locomotive valve gear
IPC: F01L29/04
Filed: 1936-12-23
Abstract: 487,686. Engine valve-gear. WOODARD, W. E. Dec. 23, 1936, No. 35284. Convention date. Jan. 10. [Class 122 (ii)] In double-acting, two-cylinder, reversible locomotive &c. engines, the valve motions are obtained from the cross-heads of the two pistons, are co-ordinated in a box intermediate the cylinders, and include mechanism for variably combining the motions comprising combining-levers each receiving components of motion from each cross-head, which movements are transmitted to oscillate cam-shafts operating the inlet and exhaust valves. The valve chests are provided with two steam admission poppet valves 24 and two exhaust valves 25 opened by down movements of levers 28, 29 fixed on rocker shafts against the resistance of springs and steam pressure. The shafts are actuated by cams and followers by separate admission and exhaust cams mounted upon the shafts 33 rocked by the levers 34 connected by links 35 to levers 38 on rock-shafts 39. The valves are operated from the cross-heads 18 by links 40 connected to arms 41 on rock-shafts 42. The valve gear-box is mounted upon the bedplate 45 on which are mounted the shafts 37, 42, 39 which drive internal box-shafts 37b, 42b, 39b, Fig. 3. The two cross-head-oscillated shafts 42b oscillate yokes 62R, 62L. Below and above their centres of oscillation the yokes carry pin-supporting brackets 63R, 63L respectively. The bracket pins carry diagonallycrossed rods 65, 66 pivoted at 67R, 67L to oscillating yokes 69R, 69L mounted in ballbearing trunnions, and which carry slotted links 79R, 79L. The links carry blocks secured to radius rods 83R, 83L which are adjusted by levers 87R, 87L secured to the shafts 37. The forward ends of the radius rods are coupled by pins 92 R, 92L respectively to the right-hand and left-hand combining- levers 93R, 93L which are mounted at the upper ends to the yokes 62R, 62L and at the lower ends 95R, 95L to links 96R, 96L connected respectively to the arms 98R, 98L fixed upon the valve-actuating rock-shafts 39b. The movement of the cross-head on the right side of the locomotive operates the linkmotion for the left side, the movement of the cross-head on the left side being combined with the movement derived from the left-hand linkage motion to operate the left-hand valves. Similarly for the right-hand valves. The gear is shown in full-gear position for forward running with the link blocks in the position of maximum cut-off. The right-hand crank is at bottom position, and the left-hand crank at forward dead centre.
Patent GB-1006256-A (GB)
Title: Improvements in or relating to an antenna and loading coil for same
Inventor: TAYLOR JOHN
IPC: H01Q9/26
Filed: 1962-09-17
Abstract: 1,006,256. Inductors. COLUMBIA PRODUCTS CO. Sept. 17, 1962, No. 35391/62. Heading H1T. [Also in Division H4] A high frequency, high Q coil for loading an aerial and which may be incorporated in the aerial structure comprises a cylindrical former 11 with metal bands or caps 12 at the ends, and three conductors 13, 14, 15 wound around the cylinder and axially disposed to form a single layer coil, the ends of the conductors being connected to points 16 displaced from one another by 120 degrees on the members 12. The turns may be spaced apart as shown, or touching. Axially-extending conductors 17 connect the coil to the aerial circuitry. In an aerial structure. Fig. 3, a resin-bonded glass fibre former 19 is provided with a coil as shown, and the bands 12 are displaced along the former, connection being made by straight conductors 21. Aerial conductors 23, 24 are connected to the bands 12. An outlet layer of resin bonded glass fibre 20 is provided and glass fibre may separate the turns of the coil.
Patent GB-470555-A (GB)
Title: Improvement in time delay electric switches for fire alarms
IPC: G08B17/06
Filed: 1936-12-24
Abstract: 470,555. Actuation of switches. HOWARTH, H. Dec. 24, 1936, No. 35451. [Class 38 (v)] [Also in Group XXXVIII] A time delay switch for use in fire alarm apparatus comprises a solenoid E which on energization raises a rod F to lift a pawl G and release a clockwork driven wheel H, into engagement with which is moved a pawl L on a lever K which is thus turned anticlockwise against the action of a spring N. After a given interval, the lever K engages a catch M of a switch controlling an alarm, and also breaks the solenoid circuit at P. The solenoid E may be energized by closing switches D in street pillars or by a switch C at a telephone exchange.
Patent GB-380321-A (GB)
Title: Improvements relating to the production of high frequency oscillations
IPC: H03H2/00
Filed: 1931-12-22
Abstract: 380,321. Valve generating and amplifying circuits. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Labus, J. W. ; 14, North Ferry Street, Schenectady, New York, U.S.A.) Dec. 22, 1931, No. 35452. Convention date, Dec. 22, 1930. [Class 40 (v).] When an aerial 6 or other load is energized from a push-pull pair of valves 1, 2, the even harmonics generated in the plate circuits and transferred electrostatically to the transmission line 5 are neutralized by applying to the line an equal and opposite voltage. As the valves 1, 2 are biased to the bottom bend of their characteristics, harmonic voltages appear across a coil 8 in the common branch of the plate circuits. Voltages of opposite phase are derived from an extension of the coil 8 and are applied through a variable condenser 9 to the mid-point of the transformer secondary coil 4. When the line 5 is long, it is terminated at its further end by a pair of adjustable condensers 12 and an impedance or resistance 10 equal to the surge impedance of the line, thus preventing standing waves corresponding to the harmonics from being built up on the line.
Patent GB-1363347-A (GB)
Title: Pump barrels and methods of manufacturing the same
IPC: F01B3/00
Filed: 1972-07-28
Abstract: 1363347 Reciprocating pumps SOC INDUSTRIELLE DES COUSSINETS 28 July 1972 [30 July 1971] 35463/72 Heading F1A [Also in Division B3] A cylinder block for an axial piston pump comprises a steel portion 1 welded to the steel part 3 of a bimetallic disc 3, 4 having an antifriction part 4, e.g. of lead bronze, for slidably engaging a valve face. Welding is effected by an electron beam directed perpendicularly to the block axis, the cylinder bores 6 being formed after welding. Bimetallic sleeves are fitted in the cylinder bores.
Patent GB-1471513-A (GB)
Title: Model railway system providing uncoupling and delayed recoupling
IPC: B61G7/04
Filed: 1975-08-28
Abstract: 1471513 Toy train couplings C K EDWARDS and L D EDWARDS 28 Aug 1975 [9 May 1975] 35544/75 Heading A6S Toy train couplings of the type in which C-shaped coupling members 34a, 34b, Fig. 6, on adjacent carriages 35a, 35b are automatically engaged by shunting one carriage against the other so that one coupling member is cammed up over the other into hooked engagement, are provided with magnets 56, Fig. 2, actuated at an uncoupling station by magnetic fields to pivot the coupling members sideways to positions where when the carriages are shunted together, the coupling members do not engage. In the form shown, each coupling member 34a, 34b has at one side an attached permanent magnet 56 with a downwardly-directed south pole. A bar magnet 20 in a recess 18 beneath the train track 10 is transversely magnetized, with its north pole along one long edge and its south pole along the other long edge. The bar magnet 20 can be raised within a sleeve 26 and against the bias of a spring 32 to lie level with the track 10, Fig. 3 (not shown). One coupling member 34b is then held down by magnetic attraction, and the other is pivoted upwards by magnetic repulsion to the disengaged position. Permanent bar magnets 60, 62, Fig. 4, also transversely magnetized and arranged on opposite sides of the track 10, attract the magnets 56 on the coupling members 34a. 34b and twist them both sideways. The carriages 35a, 35b may then be pulled apart, and the bar magnet 20 lowered. If the carriages 35a, 35b are subsequently shunted together, Fig. 5, the width of the gap in each C-shaped coupling member 34a, 34b is too narrow to allow direct coupling, and one carriage may shunt the other to a desired position and be moved away. The two coupling members 34a, 34b are then pivoted back to their normal straight ahead positions for automatic coupling when the carriages are once more shunted together. In one modified uncoupling station, the permanent bar magnets are replaced by a solenoid (66), Figs. 10, 11 (not shown), energizing an elongated central magnetic pole (63) and elongated side magnetic poles (64, 65). In another form, Fig. 12 (not shown), a solenoid energizes an elongated central magnet pole between two bar magnets. In a third form, a solenoid (66a), Fig. 13 (not shown), energizes a central magnetic pole (63a) and the track rails (64a, 64b) are made of magnetic material and are also energized by the solenoid. Reference is made to Specification 1413646.
Patent GB-882076-A (GB)
Title: Semiconductor devices
IPC: H01L21/316
Filed: 1957-11-15
Abstract: A protective coating is formed on a germanium transistor body (see Group XXXVI) by immersing for 5 to 60 seconds in an oxidising bath consisting of 8 volumes of 48% hydrofluoric acid, 1 volume of 30% hydrogen peroxide and 4 volumes of distilled water, washing in distilled water, and drying in a hot air blast.  This treatment forms a germanium monoxide layer 100 to 10,000   thick which may be rendered stable by forming a dioxide layer on top of it either by anodic oxidation or by prolonged heating in air.
Patent GB-1352219-A (GB)
Title: Cooling installation for large polymerization kettle
IPC: B01J19/18
Filed: 1971-07-30
Abstract: 1352219 Polymerisation kettle CHEMISCHE WERKE HULS AG 30 July 1971 [1 Aug 1970] 35902/71 Heading B1X In a process for cooling a polymerisation batch in an emulsion, suspension, solution or bulk polymerisation process in an incompletely filled polymerisation kettle having a capacity of at least 40m<SP>3</SP> and a heat load of more than 500,000 kcal/hour by means of a reflux condenser which is connected to the gas space of the polymerisation kettle, the gas either is forcibly conveyed from the gas space of the polymerisation kettle 1 through the reflux condenser 2 into the reflux condenser head 2a and from there into the gas space of the polymerisation kettle, or is forcibly conveyed from the reflux condenser head through the reflux condenser into the gas space of the polymerisation kettle and from there into the reflux condenser head. The upward flow of gas is the more efficient but the downward flow may be necessary if the ascending vapours contain entrained solid particles, to prevent fouling of the condenser surfaces. Gas flow may be induced by a pump 7 outside the condenser or by a fan (not shown) inside.
Patent GB-1171734-A (GB)
Title: Improvements in and relating to the electro-deposition of palladium.
IPC: C25D3/52
Filed: 1968-07-29
Abstract: 1,171,734. Palladium-urea complex. SELREX CORP. 29 July, 1968 [8 Sept., 1967], No. 36111/68. Heading C2C. [Also in Division C7] A solution of a Pd-urea complex for electrodepositing bright Pd is made by reacting a palladous salt, e.g. (sodium) palladium chloride with excess urea.
Patent GB-898518-A (GB)
Title: A process for the manufacture of rubber strips having a high elasticity modulus and which are suitable for use as inserts for articles made of rubber or elastic plastics
IPC: B29D30/40
Filed: 1960-10-21
Abstract: 898,518. Fabrics composed of adhesively united threads. VEREINIGTE GLANZSTOFFFABBIKEN A.G. Oct. 21, 1960 [Oct. 24, 1959], No. 36236/60. Class 140. A process for the production of rubber strips having a high, elasticity modulus and which are suitable for use as inserts for articles made of rubber or elastic plastics, such as pneumatic tyres, comprises conducting completely twistfree endless artificial filaments having an elasticity modulus of at least 9 kg./mm.<SP>2</SP> without tension, through a rubber suspension or, rubber solution containing either an initial polymer of a hydroxybenzene and formaldehyde or a polyisocyanate uniformly squeezing out the filaments, stretching the filaments and finally heating the filaments under tension, the filaments being disposed in parallel relation and being completely bonded together by the rubber composition. As shown, filaments are drawn off spools 1 by driven rollers 3 and arranged in parallel alignment to form a strip by comb 2. The filaments are drawn through bath 4, passing under rollers 5 and 6 and between the latter and squeeze roller 7, thence around roller 8 and over application roller 9 which dips into bath 11 containing liquid of the same composition as that in bath 4. Stripper device 12 removes liquid from the filaments which thence pass between squeeze rollers 10 and 13, through drying apparatus 15, around roller 16 and are wound up on roll 17. Rollers 3, 6, 8, 9, 10 and 16 are driven. The speeds of rollers 3 and 6 are so adjusted as to ensure that the filaments are free of tension in bath 4. In order to stretch the filaments in the wet state and maintain the stretching during drying, rollers 9, 10 and 16 are each driven at the same speed which is higher than that of roller 8. Specified fibres are rayon and polyester. Examples describe impregnation with (a) a mixture of resorcinol, formaldehyde, sodium hydroxide solution and natural latex; and (b) a mixture of a solution of triphenyl methane tri-isocyanate in methylene chloride and a solution of raw rubber, carbon black, zinc oxide, sulphur, plasticizers, age resister and vulcanization acceleration in benzene.
Patent GB-1130980-A (GB)
Title: Rug cleaning apparatus
IPC: A47L11/32
Filed: 1966-08-12
Abstract: 1,130,980. Carpet cleaning apparatus. GLAMORENE PRODUCTS CO. 12 Aug., 1966 [18 Aug., 1965], No. 36269/66. Heading A4F. 6 A carpet cleaner comprising a pair of cylindrical roller brushes 16 rotatable about their longitudinal axes is provided with adjustable brackets 17, 18 which support the brushes in an adjustable V-formation. The brackets 17, 18 which are of generally inverted U-shape have legs (27, 28) (Fig. 4, not shown) to which the brushes 16 are attached by brushes (29) and are provided with overlapping extensions (35, 36) which are engageable by a threaded stud (34) which passes through a slot 31 in a housing 12 and to which an adjusting knob (19) is attached. On rotation of the knob (19) in one direction, the extensions (35, 36) are released by the stud (34) and the stud (34) as well as the brackets 17, 18 which are adjustably supported in the housing 12 by screws 24 are movable to adjust the V-formation of the brushes 16 locking of the extensions (35, 36) in the adjusted position of the brackets 17, 18 being then effected on rotation of the knob (19) in the opposite direction. The housing 12 is provided with reinforcing ribs 20, 21, 22 and with a socket (15) (Fig. 7, not shown) in which a handle (14) is secured.
Patent GB-622145-A (GB)
Title: Improvements in method of making synthetic fibre paper
Filed: 1946-12-09
Abstract: 622,145. Synthetic-fibre paper. TRIGGS, W. W. (Dexter & Sons, Inc., C. H.). Dec. 9, 1946, No. 36358. [Class 96] A strong, thin, porous, light-weight tissue paper is formed from pulp containing mainly synthetic filaments, and 2 to 10 per cent of microscopical fibrillµ which bond the filaments together at their crossing points. The filaments may be of cellulose acetate or nitrate, viscose, or spun glass &c., # to 1 inch long, and the fibrillµ may be obtained by beating flax, manilla hemp, hemp, or caroa &c. to 0.002 inch in length. Specification 449,118 is referred to.
Patent GB-403808-A (GB)
Title: Improvements in driving pulleys for positively driven flexible tracks of endless track vehicles
IPC: B62D55/12
Filed: 1932-12-23
Abstract: 403,808. Positive-driving pulleys for endless tracks. KEGRESSE, A., 156, Rue Armand Silvestre, Courbevoie, France. Dec. 23,1932,No. 36524. Convontiondate, Dec. 26, 1931. [Class 80(i).] A positive-driving pulley for the flexible track of an endless-track vehicle comprises two series of side members 8, the adjacent elements of each series forming the sides of recesses 10 into which fit the teeth on the inside of the track, the elements being secured by bolts 7 to a central disc 5 bolted to a flanged hub 2 keyed to a driving shaft 1, the bases of the members 8 engaging oppositely-coned members 11 slidable on the hub 2 and connected by bolts 12. The bolts 7 engage radial slots 6 in the disc 5, whereby, by adjustment of the bolts 12 after slackening the bolts 7, the members 8 may simultaneously be moved towards or away from the shaft 1.
Patent GB-1277782-A (GB)
Title: A knitting method
Inventor: BETTS MAX WILLIAM
IPC: D04B1/24
Filed: 1968-07-22
Abstract: 1277782 Knitting COURTAULDS Ltd 21 July 1969 [22 July 1968] 36541/69 Divided out of 1265308 Headings D1C and D1K In a method of knitting a sleeved garment the sleeves, including reciprocatory knit shoulder portions, and the body are knitted separately and then joined on the machine. Adjacent portions of the shoulders and upper body portions are narrowed. Each portion is knit on a separate pair of beds, and adjacent portions of the shoulders and body are narrowed when the portions are complete. The shoulder pair of beds are moved relative to the body pair so that transfer by points and loop doubling can take place. In one example the loop originally on the needle is arranged below the latch, and the transferred loop is taken by the hook. The transferred loop is pulled through the old loop and is ready for a subsequent joining operation. In a further example both loops are arranged in the hook of the needle which is then raised to land the loops on a spreader. A needle of a linking mechanism is inserted through the loops, which are then cast off. A further transfer is made before the steps are repeated.
Patent GB-1019763-A (GB)
Title: Die heads for the melt extrusion of films of synthetic organic thermoplastic polymeric material
Inventor: HOFFMAN ROBERT EUGENE
IPC: B29C48/08
Filed: 1962-09-27
Abstract: 1,019,763. Die head for melt extruding flat film. BLACK-CLAWSON CO. Sept. 27, 1962, No. 36735/62. Headings B5A and B5B. A die head for the melt extrusion of flat films includes a die body having an inlet passageway for the melt and a longitudinally extending recess communicating with the passageway and having two removable die members. One of these is received within the recess in sealing relation with the body and has a melt distributing cavity positioned adjacent a co-operating surface of the body recess to form a melt distributing manifold between the fixed die member and the body, said fixed die member having an extruding lip extending from the melt manifold and defining an extrusion passageway. The other die member is movable and is mounted on the body adjacent to the fixed die member. It has a lip portion co-operating with the lip of the fixed die member to form a slot-shaped extrusion orifice communicating with the extrusion passageway. The melt distributing cavity may be formed entirely within the fixed die member, with a planar surface of the body recess forming a closure for the cavity, so that the entire melt distributing manifold is exposed for cleaning upon removal of the fixed die member. The die body recess may be provided with a wedge bar which is a wedging fit in the recess between the body and the fixed die member, and fasteners extending through the wedge bar into the body for drawing the bar against the fixed die member to force this tightly against the body recess.
Patent GB-1270968-A (GB)
Title: Process for the production of c2-4 peroxycarboxylic acids
IPC: C07C409/26
Filed: 1969-07-22
Abstract: 1,270,968. Peroxyalkanoic acids. SANDOZ Ltd. 22 July, 1969 [30 July, 1968], No. 36744/69. Heading C2C. Solutions of C 2-4  aliphatic peroxycarboxylic acids are obtained by reacting an aliphatic carboxylic anhydride containing 4 to 8 carbon atoms with a solution comprising hydrogen peroxide and an alkyl anthraquinone, the hydrogen peroxide preferably being produced in situ by oxidation of the alkyltetrahydroanthraquinone produced by partial hydrogenation of some of the anthraquinone. The reaction is preferably conducted in the presence of an acid catalyst, e.g. H 2 SO 4  or p-toluenesulphonic acid and the peroxycarboxylic acid/carboxylic acid mixture removed from the reaction pool by distillation, the pool then being treated and reused.
Patent GB-1202232-A (GB)
Title: Visual indicating device
IPC: G01L7/08
Filed: 1967-08-11
Abstract: 1,202,232. Pressure gauges. MAGYAR TUDOMANYOS AKADEMIA AUTOMATIZALASI KUTATO INTEZET. Aug.11, 1967 [Aug.12, 1966], No.36941/67. Heading G1L. Distortion of a resilient member, e.g. a diaphragm 1 by compressed air, results in displacement of a parallel cantilevered arm 4 and consequent displacement of a perpendicular arm 3 which bears a signalling vane 5 so that the latter becomes visible through a window 8. As shown, there are two sets of arms 3, 4 and vanes 5 visible through windows 8. The degree of displacement defends directly on the pressure p.
Patent GB-1106088-A (GB)
Title: Process for the preparation of phloroglucinol
Inventor: VERO ERIC
IPC: C07C37/50
Filed: 1964-09-10
Abstract: Phloroglucinol is prepared by hydrogenating trinitrobenzene or trinitobenzoic acid, preferably under pressure, in a solution in a solvent containing at least 10% by weight of the trinitrobenzene compound and in the presence of a hydrogenation catalyst at a temperature of at least 40 DEG C., separating the catalyst and solvent from the hydrogenated mixture, hydrolysing the hydrogenated mixture with acid and recovering phloroglucinol from the resulting mixture.  Suitable solvents are, for example, ketones, alcohols, esters and ethers.  The preferred catalyst is Raney nickel but other catalysts may be used, e.g. platinum, palladium and platinum oxide. Triaminobenzene and triaminobenzoic acid are formed as intermediates by the catalytic hydrogenation of trinitrobenzene and trinitrobenzoic acid respectively.
Patent GB-797021-A (GB)
Title: Improvements in or relating to pipe clamps
Inventor: LAYCOCK ALFRED HENRY
IPC: B23K37/053
Filed: 1955-12-28
Abstract: 797,021. Nuts; screw-heads. HAMPTON Ltd., C. & J. Nov. 1, 1956 [Dec. 28, 1955], No. 37062/55. Classes 89(1) and 89(2) [Also in Group XXII] The head of a nut 41 or of a screw 17 comprises four arcuate-projections 47 from a base 48, and openings 49 between the projections to receive a tommy-bar. A sleeveextension 40 of the nut terminates in a spherical bearing-surface 42.
Patent GB-856077-A (GB)
Title: Improvements in centrifugal fans
IPC: F04D29/42
Filed: 1958-11-18
Abstract: 856,077. Centrifugal fans. WESTERASMASKINER A.B. Nov. 18, 1958 [Nov. 21, 1957], No. 37113/58. Class 110 (1). In a centrifugal fan having an axial length greater than the diameter of the fan, and also having an air inlet 4 at each end and a discharge opening extending substantially the full length of the fan, the height or peripheral extent of the discharge opening decreases from the ends towards the central part of the fan casing 1 to secure a more uniform flow of air along the length of the fan. The ratio of the length of the fan to its diameter may vary between 1.5 to 1 and 6 to 1. One edge of the discharge opening is provided by a baffle 6 having edges 7 meeting at an obtuse angle. Alternatively the baffle may be of arcuate shape. The baffle is formed as an extension of the axially extending wall of the fan casing. The discharge opening is connected to a funnelshaped discharge duct 5 divided into upper and lower sections by a parition 9. The lower duct section has a baffle 11 similar to the baffle 6, and the discharge duct has a few partitions 8 extending at right angles to the axis of rotation of the fan.