baber/WOPTO huggingface dataset:
Patent GB-343435-A (GB)
Title: Improvements in and apparatus for low temperature carbonisation
IPC: C10B49/10
Filed: 1929-11-11
Abstract: 343,435. Low temperature carboniza.- tion ; gas-producers. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on. Main, Germany.) Nov. 11, 1929, Nos. 34366/29 and 23967/30. Addition to 301,975, [Class 55 (i), Coking &c.]. [Class 55 (i).] In the low temperature carbonization of bituminous fuel, in which the fuel is heated by a blast of hot gases so that it is kept in a state of vigorous motion on its bed, as described in the parent Specification, a retort having several grates one above the other is employed. These grates are permeable to the gases but not substantially to the fuel. The fuel from the upper grate may be gasefied on the lowermost one. Grates Rl .. R4 are superposed in a shaft S, the fuel passing through valves F from one grate to the next. Grates R1 and R2 act as drying zones, grate R3 as low temperature carbonizing zone, and R4 as a gas producer which is operated by air-carbon-dioxide, or steam, or mixtures of these, blown in at an inlet L with such a force as to keep the fuel in motion on the grates. The distillates leave by an outlet G. Ash, or partially burned coke is removed through a valved outlet F4. Air, or carbon-dioxide or other gas, may be led in through pipes C. German Specification 437,970 is referred to.
Patent GB-1113276-A (GB)
Title: Production of oxirane compounds
Inventor: KOLLAR JOHN
IPC: B01J27/00
Filed: 1965-08-11
Abstract: An oxirane compound is produced by reacting in the liquid phase an olefin containing 3 or 4 carbon atoms with molecular oxygen in the presence of a molybdenum and/or tungsten catalyst at 50-250 DEG  C. Preferred catalysts are those compounds of Mo or W which are initially soluble in the reaction mixture.  A solvent such as a tertiary alcohol is preferably employed. Additionally, a basic substance, generally a compound of an alkali or alkaline earth metal giving a basic reaction in water, is employed with the catalyst in amounts ranging from 0.05 to 10 mols. per mol of metal epoxidation catalyst.  Examples relate to the preparation of propylene oxide.
Patent GB-1323723-A (GB)
Title: Apparatus for volume capactiy determination
IPC: G01F23/24
Filed: 1970-07-15
Abstract: 1323723 Measuring volume UZINA DE UTILAJ CHIMIC "GRIVITA ROSIE" 15 July 1970 [22 July 1969] 34401/70 Heading G4H [Also in Division G1] The volumetric capacity of a container is measured using a plurality of feelers each at a different level in the container, one of the feelers being shown in Fig. 1, each feeler having a metallic rustless portion of 1 with a lower surface area S carrying a pin 5 with a lower surface area s (s ½ S) (covered with lacquer or an electrically insulating coating) such that, when the surface s of one of the feelers engages the liquid a first signal is applied to a control circuit and when the surface S engages the liquid a second signal is applied. In the described embodiment in which a domed cistern is filled with water from standard gauge vessels 17, 20 (Fig. 3), water in the cistern enters a housing 6, having a supporting tube 3 of insulating material carrying the feelers 1, through holes in the base of the housing. Initially a screw 12 is adjusted to determine the vertical orientation of the supporting tube 3 within the housing, an indicator 16 moving over a scale 11 as the screw is turned. The horizontal position is effected using a level 15. A level indicator tube 21 is connected to the vessel 20 by a valve 33, a scale 22 being positioned adjacent the tube 21. Initially the vessels 17 are emptied into the system via hand controlled valves 29, the system being subsequently filled from vessel 20 through valves 30, 32 and valve 31. A manually positioned selector switch 29 is connected to the output conductor from one of the feelers, the output from the switch 29 being connected to a rectifier 35 also receiving an AC signal from transformer 34. When the tip of the feeler is in contact with the water a current of 5 mA flows in the primary circuit of the rectifier to energize a relay A which results in (1) contacts a 1  closing to light a lamp 37 and sound a warning 38 and (2) contacts a 2  closing to energize a further relay C and hence close valve 32 so that flow to the cistern from vessel 20 is reduced to a low rate. When the larger base surface of the feeler contacts the water a current of 50 mA flows in the rectifier circuit resulting in a relay B being energized to (1) close valve 33 to maintain the liquid level in tube 21, (2) give an indication via lamp 41 and sound warning 42 to an operator to read the liquid level off scale 22 and (3) de-energize relay A so that the fluid flow to the cistern is brought back to its fast flow rate. The operator then moves selector switch 29 to connect the next feeler into circuit and the process is repeated.
Patent GB-1446481-A (GB)
Title: Anti-skid brake control in motor vehicles
IPC: B60T8/70
Filed: 1973-07-19
Abstract: 1446481 Aritiskid braking systems AISIN SEIKI KK 19 July 1973 [20 July 1972 28 Sept 1972 (2)] 34498/73 Heading F2F An antiskid braking system comprises means for providing a wheel pulse signal representing the rotational speed of a selected wheel, means for calculating from that speed the wheel deceleration, a circuit for simulating the actual or optimum vehicle speed, means for comparing wheel speed and vehicle speed to calculate the slip ratio means for modulating the braking pressure at a rate dependent on wheel deceleration when the slip ratio is within a predetermined range and means for modulating the pressure at a different rate when the slip ratio is outside the predetermined range. As described the range is 20% to 60% wheel slip and the selected wheel is the slowest wheel. The deceleration is calculated by comparing counts of pulses in successive time periods. In the vehicle speed simulating circuit a pulse generating circuit 100 includes an oscillation circuit OS1 whose output is supplied to a NAND element M13 connected to a binary counter BC1 connected in turn to a decoder D1. As shown in Fig. 10 wheel speed sensors 5, 6 producing a sinusoidal voltage supply signals to a controller 7 wherein simulated and controlled vehicle speeds are compared to provide a signal to operate a valve 8 controlling hydraulic pressure applied to wheel cylinders 3, 4 the braking circuit also including an accumulator 10 charged by a pump 12 and a drivers valve 9. As shown in Figure 18 the valve 8 has three ports, of which port 51 is connected to the valve 9, port 52 is connected to the wheel cylinders and port 53 is connected to a reservoir 13, a spool 55 and a plunger 60 movable against a spring 62 by a coil 54 connected to the controller 7. When the wheel speed is reduced to such an extent that locking is imminent controller 7 produces a current in wire 23 and valve 8 by-passes a part of the fluid in conduit 19, connected to port 51, to reservoir 13 so that the pressure in output conduit 20, connected to port 52 is reduced and braking pressure is reduced to a value below that which would cause the wheels to lock.
Patent GB-459464-A (GB)
Title: Vulcanisable compositions of rubber and the like and their preparation
IPC: C08K5/00
Filed: 1935-12-13
Abstract: Piperidine is reacted with an aldehyde other than formaldehyde, to give such condensates as benzylidene-, butylidene-, crotonylidene- or furylidene-dipiperidine, which, on reacting with carbon disulphide in the presence of moisture, liberate the aldehyde and form piperidine piperidine-1-carbothionolate.  Other aldehydes referred to are hexoic aldehyde, salicylic aldehyde and aldol.  Diethylamine reacted with benzaldehyde forms benzylidene bis-diethylamine, which, on treatment with carbon disulphide in the presence of moisture, forms diethylammonium diethyldithiocarbamate.ALSO:A compound of an aldehyde, other than formaldehyde, and a secondary amine is incorporated in a vulcanizable rubber mix, and the mixture is subsequently treated with carbon disulphide in the presence of moisture and vulcanized.  The subsequent treatment forms an accelerator in situ.  The secondary amine is preferably of the dialkyl, alkylaryl or polymethylene class and includes piperidine and diethylamine.  Aldehydes specified include benzaldehyde, furaldehyde, butaldehyde, crotonaldehyde, hexoic aldehyde, salicyclic aldehyde and aldol.  When reacted with piperidine they form such condensates as benzylidene or butylidene or crotonolyidene or furylidene dipiperidine which on reacting with carbon disulphide in the presence of moisture liberate the aldehyde and form piperidine piperidine - 1 - carbothionolate. Benzaldehyde and diethylamine form benzylidene bis-diethylamine which on treatment with carbon disulphide in the presence of moisture forms diethylammonium diethyldithio-carbamate.
Patent GB-343078-A (GB)
Title: Improvements in or relating to freewheel clutches
IPC: F16D41/30
Filed: 1929-11-13
Abstract: 343,078. Free-wheel clutches. SWALES, E. W. and RUDGE-WHITWORTH, Ltd., Rudge Works, Crow Lane, Coventry. Nov. 13, 1929, No. 34622. [Class 80 (ii).] In cycle and like free-wheels, the sprocket &c. a is provided with face ratchet teeth g formed by impressing an annular projection g<1> with dies &c. In the pressureoperation, the points of the teeth g are left sharp, the displaced material being spread laterally at the roots. The sprocket is preferably formed of thin sheet material and runs between separate side members on a single ring of balls c with or without a cage or distance-pieces. One side member h contains inclined pockets i for crescent-shaped pawls j bearing on a plate-spring k, the other side member n screwing on a reduced part h<3> of an extension h<1> of the side member h, this extension h<1> being provided with a ball race h<2>. The mechanism is enclosed by a flange on the member n projecting into a groove e in the sprocket and a cover l projecting into a groove f and clamped between the part h and a collar m on the hub. The ball race may alternatively be formed by a coned part on the extension h<1> and a complementary coned ring held in place by the member n. In another modification, the ball bearing is omitted and the sprocket runs on a plain bush located by the member n. Sliding or springless rocking pawls may be used, and pawls and ratchet teeth may be provided on both sides of the sprocket, in which case all the pawls need not engage simultaneously. The Provisional Specification describes an inversion in which the pawls are carried by the sprocket; where ratchet teeth are provided on both side members, the pawls may project to each side alternately.
Patent GB-1381988-A (GB)
Title: Process for producing alkadienol esters and products produced therefrom
IPC: C07C67/04
Filed: 1972-07-25
Abstract: 1381988 Catalyst composition HENKEL & CIE GmbH 25 July 1972 [26 July 1971] 34673/ 72 Heading B1E [Also in Division C2]  Catalyst compositions comprising palladium and/or a palladium-(II) compound and a mononuclear triarylphosphite in which one of the aryl radiants is substituted in the ortho position by an amino or nitro group or a hydrocarbon or chlorinated hydrocarbon radical are'used in the preparation of alkadienol esters by reaction of 1.3-conjugated acyclic diolefines with carboxylic acids (see Division C2). The palladium compounds may be salts of organic or inorganic acids or palladates or palladium complexes, or the metal may be applied to a carrier. The phosphites preferred are ligands in which at least three o-substituted groups are present, e.g. tris o-methyl phenylphosphite. A promotor comprising a carboxylation product e.g. a salt of carboxylic acid may be added or prepared in situ.
Patent GB-868677-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C1/12
Filed: 1957-11-07
Abstract: 868,677. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 7, 1958 [Nov. 7, 1957; Dec. 4, 1957 ; Dec. 31, 1957], Nos. 34679/57, 37835/57 and 40451/57. Class 39(4). A restraint for a moderator and reflector structure comprises shoes loaded against the structure by torque tubes. The drawings with application 34679/57 (Figs. 1, 2 and 5) show a mild steel casing 6 supported in a mild steel pressure vessel 2 by keys and keyways and enclosing, with end grids, a moderator structure. The grids have ties 9 and members 11 spring loaded against the moderator. Torque tubes 15 are supported by the grids and at points 17 along their lengths. Each tube comprises a long tube 19 locked to a grid at one end 24 and carried in a bearing 23 at the other. To the latter end is welded one end of a short outer tube 20 with its other end free and carrying an arm 28 pivoted to a shoe 27. This free end also carries pairs of jaws 31, 32 attached to rings 33 to link the tubes bearing on one ring of moderator blocks. One or both pairs of jaws are welded to the tube so that all or only some of the shoes move in unison. Fig. 3 of application 37835/57 shows a way of releasing overloading in a tube caused by growth of the structure under irradiation. The inner and outer tubes are not welded but are locked by fins 13; these fins will fail gradually until stronger projections 16 engage to prevent complete failure. The drawings with application 40451/57 (not shown) show the lever and shoe linked by a strut to allow freedom for movement caused by irradiation.
Patent GB-290136-A (GB)
Title: Improvements in trouser stretchers and the like
IPC: A47G25/66
Filed: 1927-12-22
Abstract: 290,136. Smith, W. S. Dec. 22, 1927. Trouser stretchers.-An internal stretcher comprises a pair of bars 4 connected by toggles or links 5 to a member 1 within which slides a rod 2. The rod 2, which is also connected by links 5<1> to the stretcher bars, is moved longitudinally by a screwed rod 6 and fly nut 8.
Patent GB-1066330-A (GB)
Title: Inorganic flameproofing composition for organic plastic material
IPC: C08K3/22
Filed: 1965-08-13
Abstract: Flameproof compositions comprise an organic high polymeric plastic material selected from natural and synthetic rubber, polyester resins, polyethylene, cellulose acetate butyrate and polystyrene, together with 7.2-61 weight per cent of aluminium hydroxide, 4.2 to 30 weight per cent of antimony oxide and 0.07 to 9.1 weight per cent of an antioxidant.  Specified antioxidants are 4,41-thiobis-(6-t-butyl-m-cresol) and 4,41 - thiobis - (6 - t - butyl phenol). Examples describe compositions comprising polyethylene, aluminium hydroxide, antimony oxide and antioxidant.
Patent GB-1071354-A (GB)
Title: Improvements in and relating to the manufacture of water-soluble macromolecular compounds containing hydroxyl groups
IPC: C08B37/00
Filed: 1964-08-25
Abstract: Products that dissolve in water without forming lumps are made from macromolecular water-soluble compounds containing hydroxyl groups, by treating a said compound in the solid state with 0.05-5% by weight of at least one aliphatic dicarboxylic acid containing 2 to 8 carbon atoms and/or a salt and/or an ester thereof, or with a solution of said acid and/or salt and/or ester in a solvent in which the said compound is insoluble, and heating the resulting mixture to a temperature ranging from 50 DEG  to 130 DEG  C. Specified macromolecular compounds include cellulose ethers, cellulose esters, starch ethers, starch esters, modified starches, vegetable gums and derivatives thereof and alginates, e.g. hydroxyethyl cellulose and hydroxyethyl celluloses containing also alkyl and/or carboxyalkyl groups linked with oxygen, e.g. ethylhydroxyethyl cellulose and polyvinyl alcohols and their water-soluble derivatives, especially partially etherified and esterified polyvinyl alcohols. Suitably, the dicarboxylic acid or specified dicarboxylic acid derivative is added to the macromolecular compound and the whole is subjected to a temperature ranging from 70-120 DEG  C., desirably by drying the mixture in air at these selected temperatures.  Specified dicarboxylic acids include oxalic acid and specified derivatives include dimethyl oxalate and diethyl oxalate.  In general the methyl and ethyl esters of oxalic, malonic, succinic, glutaric and adipic acid are preferred.  The dicarboxylic acid or derivative may be used in admixture with or in a solution in a liquid or mixture of liquids which swells the material to be treated.  Such liquids include methanol, ethanol, isopropanol, n-butanol, acetone and methyl ethyl ketone, and mixtures of these liquids with each other or with water. Treatment is best performed at pH 4-8, especially in a neutral medium.  Examples are given.
Patent GB-174909-A (GB)
Title: Improvements in water cooling apparatus for steam locomotive condensers
IPC: F28B9/06
Filed: 1921-12-29
Abstract: 174,909. Krupp Akt.-Ges., F. Jan. 29, 1921, [Convention date]. Cooling condensers, air blast and deflectors for. -The cooling compartments of the structure .described in Specification 170,566, [Class 29, Cooling &c.], are divided up into tiers of separate trickling cells b by approximately horizontal partitions m, and the fan e for forcing cooling air through the cells is arranged in the middle of the structure. The inlets p for the air are preferably arranged concentrically with the fan shaft, and the discharge duct c of the fan tapers towards either end of the structure, whereby an approximately constant velocity of the air current entering the cells through openings g is obtained. The openings g may be regulated by shutters h. The warm water flows from the cundenser through a pipe a and is distributed by spray pipes over the material in the cells and collected in a tank d at the bottom. The exhaust passages n for the moisture-laden air change direction several times to effect a separation of the entrained water, and increase in cross-section towards the outlet i at the top to obtain an approximately uniform velocity of the escaping air. The air enters the fan through a stator wheel f, and the fan may be driven by an electric motor or from the axle of the vehicle.
Patent GB-971232-A (GB)
Title: Reducing valves
Inventor: GRAY BENJAMIN PHOENIX
IPC: G05D16/06
Filed: 1962-09-13
Abstract: 971,232. Valves. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 27, 1963 [Sept. 13, 1962], No. 34991/62. Heading F2V. A reducing valve has a flexible diaphragm 16 which in use is subjected to the outlet pressure at 14 thereby to control the extent of the valve opening, and at least three rigid plates 33 forming a continuous backing ring over the flexible portion of the diaphragm, the plates being located in position by clamping means 38, 39 which loosely bear on the outer and inner edges only of the plates so that the inclination of the plates may vary when the diaphragm is flexed without offering a substantial resistance to diaphragm movement. The diaphragm may be of polytetrafluorethylene and the space 36 beneath it communicates with the valve outlet through a pipe 35. In a modified construction, a passage in the valve stem communicates with the chamber for the spring 24 which is enclosed by a diaphragm to balance the action of fluid pressure on the closure member.
Patent GB-442463-A (GB)
Title: Improvements in and relating to water main and like pipe joints
IPC: F16L13/12
Filed: 1934-12-06
Abstract: 442,463. Pipe joints. BAXTER, G., 39, Hyndford Street, Dundee. Dec. 6, 1934, No. 35029. [Class 99 (i)] In a caulked lead spigot - and - socket joint a solid or coreless lead ring 3 is prefitted in a recess in the socket so as to fill the recess and is caulked after insertion of the spigot which is preferably tapered. The spigot may taper from a shoulder a<1> against which the lead is caulked.
Patent GB-507907-A (GB)
Title: Improvements in the structural connecting systems for floats, boats or the like
IPC: B63B1/14
Filed: 1937-12-17
Abstract: 507,907. Floats. ONORI, R. Dec. 17; 1937, No. 35033. Convention date, Dec. 17, 1936. [Class 113 (ii)] A loading float has two hulls A<1>, B<1> connected by a linkage A, B, C, D at one end. The links are connected to the hulls by pivots 3, 4, 5 and 6 and are moved to and from the folded position by a piston and cylinder device 15, 16. The vessel to be loaded is placed between the hulls and protected by fenders 1. This vessel may also be gripped by electromagnets or by hydraulic pistons.
Patent GB-392261-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K5/132
Filed: 1931-12-18
Abstract: 392,261. Dynamo-electric machines. ELECTROMERSIBLE MOTORS & PUMPS, Ltd., Abbey House, Victoria Street, and COOPER, T. L. R., 31, Corringway, Ealing, both in London. Dec. 18, 1931, No. 35081. [Class 35.] Insulation; cores; cooling.-In a machine wherein the stator windings are enclosed in a fluid-tight chamber, the enclosure comprises flexible tubes of insulating material passing through the slots and joined with flexible insulating end-pieces which form the walls adjacent to the core ends of end-winding enclosures. The flexible material may form all the walls of the end enclosures. In the form shown, the thin metal cylinder 16 is secured to a metal diaphragm 15 and is forced into the flexible insulating flange 4, and the other portion 3 of the flexible insulation is held between the core and rubber rings 22 clamped by metal rings 23 and key rings 24, whilst a fluid-tight joint between the diaphragm 15 and casing 12 completes the enclosure of the end windings 4. The laminµ are pressed against the shoulder 18 by a key ring 20. In an alternative form, the two flaps of insulation at each end of the core extend around and enclose the end windings and their edges may be clamped together and secured to a clamping ring. The enclosure may be filled with oil or bitumen solution. According to the Provisional Specification, the core, in the case of large machines, may have insulated ducts for the passage of cooling fluid.
Patent GB-885266-A (GB)
Title: Granulating apparatus for plastic sheet material
IPC: B02C18/14
Filed: 1960-10-13
Abstract: 885,266. Cutting sheet plastic. LONZA ELECTRIC & CHEMICAL WORKS Ltd. Oct. 13, 1960 [Oct. 16, 1959], No. 35102/60. Class 87(2). [Also in Group II] Apparatus for granulating plastic sheet material 7 comprises a toothed bed knife 5 co-operable with straight-edge knives 3 and profiled knives 4 adjustably secured to a rotatable knife support 2. The knives 3, 4 may be aligned, or staggered, circumferentially of the support 2. One end of the knife support and the corresponding end of the bed knife are fixed, the other end of the knife support being axially slidable and the other end of the bed knife being slidable axially and laterally. The material of the knife support and that of the bed knife preferably have the same coefficient of expansion. The material 7 is fed stepwise by means of rollers 8, the length of each feed step being less than the length of a tooth of the bed knife.
Patent GB-947101-A (GB)
Title: Improved apparatus for dispensing pastes, creams and liquids
Inventor: GREEN EDWARD RAMSAY
IPC: A47K5/12
Filed: 1961-09-29
Abstract: 947,101. Reciprocating pumps. NEWTON CHAMBERS & CO. Ltd. Sept. 4, 1962 [Sept. 29, 1961], No. 35138/61. Heading F1A. The reservoir 9 of a dispenser for pastes or liquid is detachably secured to a mounting plate 1 secured to a vertical surface, the charging opening 7 being inaccessible when so mounted. The dispensing pump 18 which may be of the type described in Specifications 818,363 and 818,364 is suspended beneath the container by means of dovetail slide 19 and when assembled ports 20, 21 in the reservoir and pump align. The plate 1 is provided with key slots 2 to receive headed studs 3 on the reservoir, and a key actuated bolt enters the larger hole of one slot to prevent removal of the container. Guide lugs 37 and grooves 38 may be provided on the plate and reservoir to facilitate mounting and removal of the reservoir.