baber/WOPTO huggingface dataset:
Patent GB-980882-A (GB)
Title: Improvements in automatic slack adjusters for brakes
Inventor: SOBOL WOLDIMAR
IPC: B61H15/00
Filed: 1962-02-15
Abstract: 980,882. Automatic slack adjuster for brakes; friction clutches. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Jan. 11, 1963 [Feb. 15, 1962], No. 19447/64. Divided out of 980,881. Headings F2C and F2E. In an automatic slack adjuster for vehicle brakes of the kind disclosed in Specification 980,881 wherein first (1) and second (23) members are movable telescopically relative to each other to effect slack adjustment, the first member 1 being provided with a screw threaded portion threadedly engaged by first (48) and second (43) nuts, a mechanism is provided whereby the position of the two nuts is preserved during stretch of the brake rigging. The embodiment shown in Fig. 5 differs from that disclosed in Specification 980,881 in that the stop bracket 19 merely provides an abutment for the front end plate 24 and the adjacent faces of these two parts do not constitute a clutch as they do in the previously disclosed embodiment. Further, the load transmitting nut 43 is provided with another thrust bearing 42a located on its left hand end. The spring support 15 in this case does not provide the clutch disclosed in the previously disclosed embodiment but, by means of a ring 15a carried on the left-hand end of the spring support 15, it does provide a clutch n-n with the end bush 29 of the housing 32.
Patent GB-672947-A (GB)
Title: Improvements in or relating to apparatus for shaving
IPC: B26B21/44
Filed: 1949-07-23
Abstract: 672,947. Shaving appliances. DAVIES, J. N. July 24, 1950. [July 23, 1949 ; Aug. 18, 1949] Nos. 19450/49 and 21456/49. Class 30. A shaving appliance comprises a blade holder, a liquid container provided with a wetting sector having a frame orifice or orifices through which liquid is supplied to the skin when in contact with the sector, the supply being interrupted when contact with the skin ceases, the wetting sector being such that a liquid seal against the free entry of air into the apparatus or the escape of liquid from the apparatus is formed by the liquid held in the orifice or orifices, provided that a layer of liquid is maintained on the inner side of the sector, and means for maintaining such layer throughout a shaving operation. To facilitate shaving, the skin is wetted by one or more wetting strokes, during which the blade may be shielded by any of the methods disclosed in Specification 672,948, between each shaving stroke. As shown a wetting sector 31 of wire gauze, metal strips or cotton fabric is secured across the opening of a tank 23 which can be rotated on the pivot 27 to bring the wetting sector into register with either of the apertures 22 in the casing 4. The tank has a partition 24 centrally apertured at 56 and positioned so that the razor may be held in any shaving position without recession of the hot or cold water, or other liquid suitable for shaving, from the inner surface of the wetting sector, and air bubbles entering through the sector are trapped between the wall of the tank and the partition. The tank is filled by immersing the casing 4 in liquid, the tank being rotated so that the plug 28 may be removed by the spring-urged rod 48. In modifications a diaphragm-type, pump or a centrifugal pump driven by an electric motor causes a forced flow of liquid past the wetting sector which may be in the form of rubber-sheathed rollers rotated by contact with the skin. In another form the blade-holding assembly is swivelled through, or is detachable to turn through, 180 degrees so that either edge of a blade may be used with a single wetting sector. The blade holder may be in the form of a casing provided with a tank and a wetting sector and receiving a complete safety razor. According to Provisional Specification the rollers forming the wetting sector may be in the form of balls and may be rotated or oscillated by an electric motor. Specifications 597,918 and 640,185 are referred to in the Provisional Specification.
Patent GB-1153089-A (GB)
Title: Improvements relating to Liquid Level Gauges
Inventor: BRADSTREET DEREK
IPC: G01F23/24
Filed: 1967-04-27
Abstract: 1,153,089. Selective signalling. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 18 March, 1968 [27 April, 1967], No. 19554/67. Heading G4H. In a liquid (e.g. molten sodium) level indicator sensing elements, e.g. thermocouples 1, 2, 3, arranged vertically so as to be covered sequentially as the liquid rises, are examined sequentially by means of three stages 9, 10, 11 of a five-stage ring counter 12, 13, 9, 10, 11 and transistor gates 5, 6, 7, the counter also being arranged to turn on progressively associated lamps 14, 15, 16, and when a sensing element is reached which is found to be above the liquid (where the temperature will be lower than that of a reference thermocouple 4 at the bottom of the tank) a monostable circuit 21 is turned on which inhibits 22 further stepping of the counter by a source of clock pulses 23, resets 24 the counter so that its first stage 12 is on, and turns off 25, 26 any lamps 14, 15, 16 that are on, reversion of the monostable circuit to its stable condition (after, e.g. 350 ms. for a 40 c/s. stepping rate) permitting further stepping of the counter. Thus, the lamps 14, 15, 16 are repeatedly sequentially turned on up to a lamp which corresponds to the height of the liquid.
Patent GB-317192-A (GB)
Title: Improvements in or relating to fluid actuated relays
IPC: H01H45/00
Filed: 1928-07-05
Abstract: 317,192. Bancroft, F. E., and Associated Electrical Industries, Ltd. July 5, 1928. Induction furnaces.-Means for protecting water cooled coils of an induction furnace comprise a relay controlled by the flow of fluid comprises an inlet nozzle 3 for the fluid, which is thereby directed against a vane 20 secured to a spindle 5. The vane is housed in a relatively large cross sectional area outlet pipe 4. When the flow is sufficiently great the vane is deflected, turning the spindle and e.g. a mercury tilting switch 8 against the bias of an adjustable spring 11. By reason of the low pressure where the spindle passes through the casing the need for a tight gland is obviated, The vane is of .scooped form, as shown,
Patent GB-619063-A (GB)
Title: Method of producing a monocarboxylic acid
IPC: C07C65/21
Filed: 1946-07-01
Abstract: Monocarboxylic acids are obtained from vanillin, o-vanillin or syringaldehyde by boiling with an aqueous solution of mercuric oxide in sodium hydroxide, acidifying, boiling again to decompose the complex mercury compounds, filtering whilst hot to separate the acid and the unreacted aldehyde in the filtrate from the mercury in the precipitate, and cooling the filtrate to separate the acid therefrom. A detailed example is given.
Patent GB-1147888-A (GB)
Title: Process for the production of 4h-5,6-dihydro-1,3-oxazines
IPC: C07D265/08
Filed: 1966-05-04
Abstract: 1,147,888. 4H - 5,6 - Dihydro - 1,3 - oxazine derivatives. CHEMISCHE WERKE HœLS A.G. 4 May, 1966 [5 May, 1965], No. 19609/66. Heading C2C. In a process for the production of 4H-5,6- dihydro - 1,3 - oxazines a N - hydroxymethyl carbonamide is reacted with an olefinically unsaturated compound in the presence of a mineral acid, strong organic acid having a dissociation constant at room temperature greater than 10<SP>-2</SP> or Lewis acid, in at least equimolar amounts with reference to the 4H-5,6-1,3-oxazines to be formed. In examples: 2,6-diphenyl-#<SP>2</SP>-hydrooxazine is obtained by reacting N-hydroxymethylbenzamide with styrene in the presence of a mixture of sulphuric and acetic acids (1); 2-phenyl-6-vinyl-#<SP>2</SP>-hydro-oxazine is obtained similarly using butadiene instead of styrene (2); 2 - phenyl - 6,6 - dimethyl - #<SP>2</SP> - hydro-oxazine sulphate is obtained similarly using isobutylene instead of styrene (3); 2-vinyl-6,6-dimethyl-# 2 - hydro-oxazine is obtained by reacting acrylamide with formalin in presence of copper and reacting the product with isobutylene (6). Analogous processes yield 2,6,6-trimethyl-#<SP>2</SP>- hydro-oxazine; 2 - methyl - 6 - vinyl - #<SP>2</SP> - hydro-oxazine; 6,6 - dimethyl - #<SP>2</SP> - hydrooxazine; 2 - phenyl - 6 - acetoxy - #<SP>2</SP> - hydrooxazine; 2 - phenyl - 5,6 - tetramethylene - #<SP>2</SP> - hydro-oxazine and 6-phenyl-#<SP>2</SP>-hydro-oxazine. By-products include 1-methyl-3-benzamino-npropyl acetate; 2-methyl-4-acrylaminobutyl acetate and 1-phenyl-3-formaminopropanol-1.
Patent GB-203311-A (GB)
Title: Improved construction of tramway crossings
IPC: E01B7/30
Filed: 1923-07-31
Abstract: 203,311. AciÚries de Gennevilliers. Aug. 29, 1922, [Convention date]. Renewable wearing-parts for crossings; crossings without movable parts.-Tramway diamond crossings formed by casting or welding rails 1, 2, 3 together have filling-pieces 5, 4, 6 secured in the grooves, the pieces extending the whole width of the crossing and sloping off at each end. The pieces may be secured at intervals by screws or by welding at points.
Patent GB-706674-A (GB)
Title: Improvements in or relating to excess flow valves
Inventor: CLAIR THEODORE ALTAMONT ST
IPC: F16K17/30
Filed: 1952-08-05
Abstract: 706,674. Fluid-actuated valves. PHILLIPS PETROLEUM CO. Aug. 5, 1952, No. 19665/52. Class 135 In a valve 23 urged away from its seat 11 by a spring 22 and forced to the closed position when the flow becomes excessive, the valve is provided with a cylindrical nose which, as the valve is closing, enters the seat aperture to reduce the flow substantially before it is finally cut off. A permanent leak through the valve may be provided, however, through a pin-hole 21 or between the valve and its seat. The stem of the valve passes through a spider 28 with some clearance so that the flowing liquid can wash the stem and prevent it from sticking. The valve casing may be inserted in a pipe line or screwed into a tank wall with the outlet 12 positioned outside the tank and with the inlet pipe extending to the bottom of the tank. The casing is weakened at 19 so that, should an excess strain be put on the casing, it will break at that point.
Patent GB-1486990-A (GB)
Title: Load-responsive pressure reducing valve
IPC: B60T8/26
Filed: 1975-05-09
Abstract: 1486990 Load-responsive brakes SUMITOMO ELECTRIC INDUSTRIES Ltd 9 May 1975 [10 May 1974 8 Nov 1974 (2)] 19715/75 Heading F2F A load-responsive pressure reducing valve PV for a hydraulic braking system includes a valve plunger 20 movable under a difference in hydraulic pressure to co-operate with a seat 22 to open and close the passage for braking fluid between conduits, connected in use respectively to a source of hydraulic pressure and to brake cylinders, a control chamber 31 which stores fluid under pressure for pressing the plunger in the opening direction and to control the starting pressure of the reducing operation of the valve, a control valve CV which controls fluid flow to the control chamber and biasing means in the form of a spring 16 responsive to vehicle loading, to urge the control valve open so as to raise the reduction starting pressure of the pressure reducing valve in correspondence with the load. As the pressure of the master cylinder rises an area A4 is acted upon to overcome the set load of spring 16 and a spindle 23 closes the passage between a valve seat 30 and a flange 62 so that the hydraulic pressure from the inlet port 9 to a passage 42 is not transmitted to a passage 24 and the chamber 31 will be maintained at the valve at that time. The pressure reducing valve PV does not operate until this point of time. As the master cylinder pressure continues to increase and plunger 20 comes down the pressure is transmitted to the rear cylinder until plunger head 65 engages the seat 22. Thus differential pressure and the spring 37 balance plunger 20 and control valve CV is biased by the spring 16 in accordance with vehicle loading.
Patent GB-255648-A (GB)
Title: A machine for applying carbon sheets to printing cylinders
IPC: G03F7/18
Filed: 1925-08-05
Abstract: 255,648. Dausmann, C. F. Aug. 5, 1925. Transferring designs.- Apparatus for transferring carbon tissue sheets T, Fig. 1, on to a copper cylinder C comprises means for rotatably supporting the cylinder and adjustable gauge devices 31 adapted to be engaged with index means on the sheet T to hold it in a predetermined position whilst it is secured in such position. The whole sheet is then pressed on the cylinder by a pressure roller 22. The cylinder C is mounted on spaced rollers 12 at one end of two rail supports constituted by two pairs of spaced castings 11 and two rigid connecting bars 10. The castings are adjustably spaced along channeled rails 8, for rollers of different sizes, by screw shafts 14 each having right and left handed threads. These are interconnected by the shaft 17 and operated from the handle 15 at one side of the frame. The registering and transfer mechanism is mounted on supports 7 at one end of the machine, and the developing apparatus at the other end. The pressure roller and preliminary adjusting mechanism are mounted on a framework comprising the supports 7, the transverse shaft 19 carrying pivoting beams 20 connected by a bar 21 and a counterweight roller 43. The adjusting mechanism 31 is mounted on curved arms 24 pivoting on the shaft 23, and can be raised from the cylinder C after the adjustment of one end of a sheet thereon by the handle 32 and held inoperative during the successive pressing operation by a projection 34 turning with the shaft 23 and a notch in a resilient arm 35. The turning movement of the handle 32 is limited by a stop means 33. For the preliminary adjustment a number of gauge members 29, Fig. 4, with spring extensions 31 are slidably adjustable along a transverse bar 25 connecting the curved arms 24. The extensions 31 overlap the bevelled edge of a straight metal plate 26 secured to the bar 25, and are used to register the incisions or the like T<1>, Fig. 5, in the carbon sheet, the edge of which is then temporarily stuck on the cylinder, and by this means any number of sheets can be registered on the periphery of the cylinder. The pressure of the roller 22 on the cylinder is adjusted from the graduated handle 41 through gearing 39, 38. After the sheet is attached to the cylinder, the latter is rolled along the rails 11, 10 to another set of rollers 12' for treatment in a developing trough 47 as described in Specification 255,789.
Patent GB-763942-A (GB)
Title: Improvements in or relating to apparatus comprising co-operating pressure members and means for hydraulically transmitting pressure thereto
Inventor: BALFOUR PETER STEPHEN ANDREW
IPC: F16C13/02
Filed: 1952-08-15
Abstract: 763,942. Roller and roller-and-breast mills. HOLMES BROS. PAINT MACHINERY, Ltd. Nov. 16, 1953 [Aug. 15, 1952], No, 19765/55. Divided out of 763,941. Class 59. [Also in Groups VIII, XXII and XXIX] Means for hydraulically transmitting pressure to at least one of two co-operating rollers comprises a flexible diaphragm 33 sealing a piston 37 from a pressure chamber 23a, a jack 31 transmitting pressure to a bearing block 30 in which one end of a roller is journalled. A similar arrangement is also applied to the bearing block for the other end of the roller. The invention may be applied to a roller-and-breast mill. The means described in Specification 763,941 is also described. Specifications 715,806 743,113, 743,119 and 747,021 [both in Group XXIX] also are referred to.
Patent GB-238241-A (GB)
Title: Improvements in the concentration of ores and the like
IPC: B03D1/16
Filed: 1925-08-06
Abstract: 238,241. Bamag-Meguin Akt.-Ges. Aug. 6, 1924, [Convention date]. Flotation processes and apparatus. - In the concentration of ores, coal, &c. by flotation, the pulp is aerated and mechanically stirred by means of open-ended tubular bodies rotating about a horizontal axis. In the apparatus shown in plan, the pulp is introduced at e into the first of a series of agitating vessels f communicating with spitzkasten k, and is agitated by a rotarv system of interrupted helical tubes b having flared mouths d. Air may be supplied under pressure through the shaft a and may issue to the pulp through the tubes b or their supports. Froth overflows from the spitzkasten at and tailings are returned to the bottom of the vessels f for retreatment.
Patent GB-868636-A (GB)
Title: Improvements relating to hydrostatic power transmissions
Inventor: PAGE GRAHAM DESBOROUGH
IPC: F16H48/08
Filed: 1959-06-10
Abstract: 868,636. Hydraulic apparatus. AUSTIN MOTOR CO. Ltd. May 27, 1960 [June 10, 1959], No. 19837/59. Class 69 (2). A variable-ratio hydrostatic power transmission, such as the type in which one or more positive-displacement pumps transmit power to one or more positive-displacement motors and in which a change of ratio is effected by an hydraulic circuit controlling the supply of fluid pressure from an auxiliary pump to two or more hydraulic feeds connected to two or more hydraulic cylinders, comprises pressure-responsive valve means enabling the working circuit of the transmission to be primed by fluid pressure from whichever of the feeds is at the higher or highest pressure. The pressure-responsive valve means may consist of spring-loaded one-way valves V1, V2 having their inlets 5, 6 connected to the feed lines L, R leading to the forward low-speed cylinder 2C and reverse cylinder RC, and their outlets 3, 4 connected to a priming line P leading to the working circuit of the transmission. The arrangement of the control circuit is such that when the transmission is in reverse, the forward low-speed feed line L is pressurized and fluid therein passes through the valve V1 to the priming line P, and vice versa. The valves V1, V2 may be connected to the high-speed line H and the low-speed line L, or three valves may be provided connected to the high. low and reverse lines, the line having the highest pressure serving to prime the working circuit. The spring-loaded valves may be replaced by a shuttle-valve.
Patent GB-608603-A (GB)
Title: Improvements in mining machines
IPC: E21C27/12
Filed: 1945-08-02
Abstract: 608,603. Mining-machines. MAVOR & COULSON, Ltd., and BRYAN, A. M. Aug. 2, 1945, No. 19860. [Class 68 (i)] In a mining machine comprising a cutter chain which makes an incision in the coal seam in a plane behind the coal face and a wedge-like cutter head which enters the incision to split-off the coal, the wedge-like head has a leading part incorporating a component of small width compared with the height of the head and hinged to a leading part of the head so as to be laterally movable to break away a part of the coal, leaving the remainder of the coal to be stripped-off by wedge action of the head at different levels from said component. As shown, the cutter chain 10 circulates on a frame 11, carried by wedge head 12 connected to a hydraulic cylinder 14 containing a ram 13 connected to laterally-spaced hydraulic jacks 15 adapted to engage the roof and floor. The wedge head 12 has a forwardly-projecting part with a flattened forward end 44 and divided into prongs 17 between which is pivoted at 50 a part 47 adapted to be moved by a hydraulic ram 48 to break away the coal; above and below the prongs are wedge parts 19 and a bottom shovel part 20 and a pivoted roof cutter 22 are also provided. A motor 16 drives the cutter chain through gearing 23 and sprocket 24, and also drives a pump 27 through gearing 25. The pump draws oil through pipe 36 from a tank 28 and delivers through pipe 37 to a valve 29 which, in one position delivers through pipe 38 to the front of the cylinder 14 and thence through a passage 42 in ram 13 to a pipe system, including intensifier means 34, 35, to expand the jacks 15, the fluid then advancing cylinder 14 and wedge head 12, and the cutter chain makes its cut. The valve 29 is then adjusted to relieve pressure in the jacks 15 and in the front of cylinder 14, to deliver oil through pipe 39 to the rear of cylinder 14 to advance the jacks, a pivoted roof catch 12A holding wedge head 12 against rearward movement; simultaneously, oil passes through flexible pipe 41 to the ram 48 to actuate the coalbreaking part 47. The Provisional Specification refers to Specification 565,342.
Patent GB-167170-A (GB)
Title: Improvements in electric protective systems
IPC: H02H9/08
Filed: 1921-07-25
Abstract: 167,170. Akt.-Ges. Brown, Boveri, et Cie. July 31, 1920, [Convention date]. Protective arrangements.-Relates to the protection of alternating current distributing conductors against short circuits to earth, by providing permanent earthing inductances. According to the invention, unsymmetrical networks composed of two or more conductors having different capacities, such as the single-phase conductors 1, 2, Fig. 1, are protected by two or more earthing inductances of unequal values, such as L1, L2, the valves being calculated from the respective capacities according to formulae given in the Specification. Three phase networks may be protected by three unequal inductances L1, L2, L3, Fig. 3, calculated by similar rules. In any of the arrangements, one of the inductances may be connected between the earth and a neutral point of the network.
Patent GB-383238-A (GB)
Title: Manufacture of an emulsion of wool fat
IPC: C09D191/00
Filed: 1932-07-14
Abstract: A water emulsion of crude wool-fat, useful as a substitute for varnish and varnish colours, is made by emulsifying wool-fat with an ammonium salt of an aliphatic acid containing at least 10 carbon atoms in the molecule, together with a resin.  According to examples, crude wool-fat is emulsified with (1) tall oil, colophony and ammonia, alcohol and water being added to make up the emulsion; (2) tall oil, colophony, nigrosin oleate, ammonia, alcohol and water; (3) casein, colophony, copal, ammonia, methol alcohol and water; the emulsions (1) and (3) are mixed with a suitable pigment colour, mineral colour or lake, iron oxide being specified, to give paints; the emulsion (1) on mixing with chromic oxide, titanium white and turpentine substitute containing a cobalt-lead manganese drier, gives a quickly-drying paint. Ammonium salts of oleic, stearic or lauric acid and natural or synthetic resins, root-resin, phenol-formaldehyde resin, and condensation products of polyhydric alcohols and polyvalent acids, such at phthalic acid and glycerine may be used.
Patent GB-690315-A (GB)
Title: Improvements in or relating to identification means
IPC: G09F3/00
Filed: 1951-08-24
Abstract: 690,315. Bracelets. SCHNEIDER, J. D. Aug. 24, 1951 [Nov. 8, 1950], No. 19984/51. Class 43. [Also in Group XV] A bracelet for identifying pairs of objects, such as mother and child, comprises a band of flexible plastic material 20 formed into a tube 21 about a non-flexible strip 22, Fig. 3. Rivets 23, 24 are provided adjacent the ends, and identical symbols 27, 28 one printed on the interior of the tube on each end portion 25, 26. The tube is adapted to be severed about the line 2-2, Fig. 1, and each portion is passed round an object and secured by a riveting tool. The tube is preferably transparent and additional information can be inserted on a cord 40 comprising a severable section 41 and a tab 42 before the band is attached to the object. In a modified form, the end portions are severed from a central part which bears similar identifying symbols and is retained for record purposes.
Patent GB-386569-A (GB)
Title: Process for the roasting of ferruginous materials
IPC: F26B13/12
Filed: 1932-07-14
Abstract: Ferruginous materials, particularly poor ores, are progressively roasted in the presence of 3-6 per cent of carbon, the mixture in a thin layer being subjected to an air blast heated to 750-800 DEG  C. Roasting may be effected in the apparatus described in Specification 337,636, [Class 82 (i), Metals, Extracting &c.], the blast of air acting upon the material over only a small length near the discharge end.  Air for the process may be heated in the apparatus described in Specification 356,071, [Group XII].  The roasted ore, after being separated magnetically from the gangue, may be agglomerated by the process described in Specification 352,832, [Group II].