baber/WOPTO huggingface dataset:
Patent GB-232713-A (GB)
Title: Improvements in force feed lubricators
IPC: F16N13/10
Filed: 1924-02-02
Abstract: 232,713. Woodman, W. A. E., and Vacuum Oil Co., Ltd. Feb. 2, 1924. .auxiliary actuating gear; lever-actuated pumps ; rod guides; stroke, varying; air, trapping and removing ; buckets; indicating action of ; single-acting suction-valveless bucket pumps; valves, arrangement of.-In a lubricator of the kind wherein one or more plunger pumps are fitted in an oil reservoir and operated by mechanism from a shaft driven by ratchet &c. gear, the inlet valve box 8 is arranged at the lower end, the delivery valve box 4 at the upper end, and the plunger is provided at one or both ends with a liquid sealing chamber adapted to retain liquid irrespective of the level of oil in the reservoir. The plunger 7 may be of differential form comprising a hollow portion 31 and a portion working in a self-aligning sleeve 13, the interior of which communicates by a port 28 with a liquid sealing chamber 30. The lower portion of the plunger carries a sleeve 9 sliding on an extension 12 of the barrel 3 and forming therewith a liquid sealing chamber for the lower end of the plunger. The oil enters the barrel 3 through valves 32, 33 and the hollow portion 31 of the plunger, and is delivered through the space 14 and delivery valves 25, 24 to the sightglass 6. Air may escape from the pump by a port in the delivery valve chamber closed by a screw 57. The pump is fixed in the cover of the reservoir by means of a screw 54 engaging a recess 53 in the pump. The plunger may be operated by a lever 10 and eccentric 40, and may be manually operated by a rod 42 held against the lever by a spring. This rod 42 moves up and down and indicates the action of the pump; it ma be adjusted vertically to vary the pump stroke by means of a screwed sleeve 43 adapted to be rotated in a fixed sleeve 44 by a pin 47 on the rod 42. Specification 134,496 is referred to.
Patent GB-684336-A (GB)
Title: Improvements relating to portable loose sheet holders
Inventor: CHERRY HAROLD ARTHUR
IPC: B42F17/02
Filed: 1950-02-03
Abstract: 684,336. Filing paper and like sheets. KALAMAZOO, Ltd. Jan. 4, 1951. [Feb. 3, 1950] No. 2811/50. Class 146 (i). A portable loose-sheet holder comprises an inner part having a back plate 3 and hinged side pieces 4 for receiving the sheets and an outer invertible part 6 which can serve both as a cover and a support for the inner part. The side pieces of the outer part 6 are each provided with a deep V-gap 9 which extends from the lower open edge of the outer part to the top piece 7. The inner part may then be supported as shown in Fig. 4 in the gaps 9. Attached to the ends of the back plate 3 of the inner part are flanged retaining pieces 5 which when folded up engage the side pieces 4. In the open position, Fig. 5 (not shown) the retaining pieces 5 can be used for supporting offset sheets, and in the closed position, they are locked to catches 13 on the part 6.
Patent GB-386137-A (GB)
Title: Improvements in or relating to apparatus adapted to maintain uniformity in the motions of mechanical systems
IPC: F16D3/50
Filed: 1932-02-01
Abstract: 386,137. Flywheels. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Hanna, C. R. ; 2001, Frankilla Avenue, Pittsburg, U.S.A.) Feb. 1, 1932, No. 2998. Convention date, Feb. 2, 1931. [Class 122 (i).] A flywheel 7 is rigidly mounted upon the shaft 9 and driver by the bevel gearing through a spring 11. A second flywheel 13 is loosely mounted upon the shaft 9 and pressed into engagement with a frictional coupling 15 by a spring 23. The coupling is lubricated by lubricant retained in a cavity 19. It is shown mathematically that for critical damping the moment of inertia of the flywheel 13 must be greater than eight times that of the flywheel 7. It is also shown that the resistance of the frictional coupling must, for critical damping, be less than [Mn<2>[n<2>+20n-8+ L{(n-8)< 3> }<¢> ]/8k(n+l)<3>]¢ but greater than [Mn<2>[n<2> + 20n - 8 - {n(n - 8)< 3> }<¢>]/8k(n + 1)<3>]<¢> where M is the moment of inertia of flywheel 7, nM is the moment of inertia of flywheel 13 and k is the compliance of the spring.
Patent GB-1219076-A (GB)
Title: Temperature sensitive transducers
Inventor: STRAUCH HEINRICH
IPC: G01K7/38
Filed: 1967-01-20
Abstract: 1,219,076. Inductors. ASSOCIATED ENG. Ltd. 18 April, 1968 [20 Jan., 1967], No. 3092/67. Heading H1T. [Also in Division G1] A temperature-sensitive transducer comprises a coil 5 (Fig. 1) wound on a ceramic former 4 with a core of iron wires 3 bent into U-shape. The unit is located in a stainless steel holder 1 closed at one end by a thin, machined face 2 of stainless steel, and hermetically sealed at the other end with ceramic material enclosed by a steel end plate 6 and tube 7 welded to each other. The permeability of the stainless steel holder 1 and face plate 2 varies with temperature and the resulting change in coil inductance is measured in a bridge circuit (Fig. 3, not shown). The holder and its face plate may alternatively be made of nickel.
Patent GB-555945-A (GB)
Title: Improvements in or relating to water tube steam generators
IPC: F22B21/34
Filed: 1942-03-10
Abstract: 555,945. Furnace walls. SULZER FRERES SOC. ANON. March 10, 1942, No. 3134. Convention date, April 10, 1941. [Class 51 (i)] [Also in Group XIII] The walls of a boiler are lined with U-shaped water tubes 2 each having a downflow limb connected to a water drum 5 and an upflow limb connected to a steam separating drum 6 placed above the water drum. The downflow tubes are screened from the furnace by walls 7 between the limbs of tubes. The downflow limbs project a short distance into the water drum. The upflow limb of each tube is of greater cross section than the downflow limb, or is formed of two or more tubes connected in parallel. The bends at the bottom of the tubes are protected by brickwork against radiation from the furnace.
Patent GB-675797-A (GB)
Title: Improvements in or relating to colour photographic processes and materials therefor
Inventor: COLLINS RONALD BERNARD
IPC: G03C7/384
Filed: 1950-02-07
Abstract: 1 - (41 - Phenoxy - 31 - sulphophenyl) - 3 - heptadecyl - 4 - p - dimethylaminobenzylidene - 5 - pyrazolone is prepared by heating together 1 - (41 - phenoxy - 31 - sulphophenyl) - 3 - heptadecyl-5-pyrazolone and p-dimethylaminobenzaldehyde in glacial acetic acid and absolute alcohol.  1 - (41 - Sulphophenyl) - 3 - heptadecyl - 4 - p - dimethylaminobenzylidene - 5 - pyrazolone, 1 - (31 - sulphophenyl) - 3 - heptadecyl - 4 - p - dimethylaminobenzylidene - 5 - pyrazolone, and 1 - (41 - phenoxy - 31 - sulphophenyl) - 3 - undecyl - 4 - p - dimethylaminobenzylidene - 5 - pyrazolone are similarly prepared.  Specification 513,596 is referred to.
Patent GB-1291373-A (GB)
Title: Liquid developer for electrophotography
IPC: G03G9/12
Filed: 1970-01-22
Abstract: 1291373 Liquid developer RANK XEROX Ltd 22 Jan 1970 3223/70 Heading G2H A liquid developer comprises a hydrocarbon or halogenated hydrocarbon as carrier liquid and a tetraamino-copper phthalocyanine oxidation product as colouring pigment. The tetraaminocopper-phthalocyanine is of the formula and is oxidized in a neutral, acid or alkaline solution in water or an organic solvent. The non-pigment constituents of the developers of the Examples are: ethyl acetate, kerosene, cyclohexane, cotton seed oil, linseed oil, and modified phenolformaldehyde resin. 0À1-50 gm of pigment/litre of liquid may be employed. Dispersion may be effected using a ball mill or rollers
Patent GB-885806-A (GB)
Title: Improvements in piston and ring assemblies for internal combustion engines
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/00
Filed: 1960-01-29
Abstract: 885,806. Piston rings. CROSS MANUFACTURING CO (1938) Ltd. Oct. 19, 1960 [Jan. 29, 1960], No. 3246/60. Class 122 (1). A piston-and-ring assembly comprises a hard metal split bearer ring 1 having its outer peripheral face 2 formed with an annular concave recess which preferably extends between the top and bottom edges 3, 4 of the ring. The inner face 5 may be cylindrical or convex. As shown in Fig. 4, the bearer ring 1 is disposed between two sealing rings 8, 9. Specifications 415,322, 841,975 and 874,145 are referred to.
Patent GB-1293561-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25D23/08
Filed: 1969-01-21
Abstract: 1293561 Refrigerators PHILIPS GLOEILAMPENFABRIEKEN NV 21 Jan 1970 [21 Jan 1969] 3270/69 Heading F4H A refrigerator cabinet comprises an insulating body 2 of foamed plastics material formed between an inner lining 1 of P.V.C. sheet material and an outer container 3 of sheet cardboard covered with a surface layer of metal or plastic, and breaker strips 4, 5 are located along the open edges of the cabinet which have grooves or slots 10, 11 formed by flanges to define an external groove for the insertion of the front edges of finishing panels 12, 13. The breaker strips are formed of a moulded plastics material and may be formed with an embedded steel strip or comprise several flanges defining several grooves. The wiring of an electrical circuit may be supported adjacent the outer layer of the insulating body, and steel reinforcing members 14 ... 17 are embedded in the insulation material. It is stated that the presence of a void created during the foaming operation is detectable through the flexible lining by applying pressure thereto, and can be remedied by making an aperture at this point and injecting additional foam-forming material into the void and thereafter sealing the aperture.
Patent GB-537931-A (GB)
Title: Improvements in electrostatic loudspeakers
IPC: H04R19/02
Filed: 1940-02-21
Abstract: 537,931. Loud-speakers. SHORTER, D. E. L. Feb. 21, 1940, No. 3308. [Class 40 (iv)] In an electrostatic loud-speaker, the fixed electrode or the diaphragm or both is or are divided into electrically separated sections fed through a frequency-selective filter in such a way that the whole of the signal frequency spectrum is fed to one section and only a lowfrequency band to another section. The Figure shows a fixed electrode in four sections, F1, F2, F3, F4, the diaphragm not being shown. The output of valve V is fed to the various sections through resistances R1, R2, R3 which cooperate with the inter-electrode capacities to form a frequency-selective low-pass filter so that the outer sections receive less and less of the higher frequencies. The polarizing battery B is connected through resistances R4 ... R7 in such a way that the outer sections receive a higher voltage than the inner ones. The condensers C1, C2, C3 serve merely as blocking condensers. The amplitude of the voice currents may be graduated in such a way that the outer sections receive the higher voltages. For push-pull working; a multi-section fixed electrode may be arranged on each side of the diaphragm.
Patent GB-637514-A (GB)
Title: Liquid oxygen converters
IPC: F17C9/02
Filed: 1947-02-04
Abstract: 637,514. Re-vaporizing gases. WILDHACK, W. A. Feb. 4, 1947, No. 3337. Convention date, Feb. 5, 1946. [Classes 8(ii) and 102(ii)] A liquid oxygen converter comprises a main container 1, Fig. 1, a delivery duct 12 having a main evaporating coil 14 in conduit connection with the liquid phase in the container 1 and a pressure build up circuit between the liquid and gas phases of the container and including an evaporating and warming coil 6 below the liquid level in the container, a pressure closing valve 9 adapted to close the circuit when a predetermined pressure is attained and a manually controlled valve 10. In operation and on opening the valve 10 liquid oxygen flows through a trap 5 and is evaporated at 6 to build up pressure at 7 until the automatic valve 9 closes whereupon on opening the delivery valve 43 liquid is forced up a syphon 13 to the main evaporating coil 14. Delivery of small amounts may be effected from the gas phase through an economizing circuit comprising a filling tube 16, a pressure opening valve 15 and a check valve 17 and thence the coil 14 and duct 12. In a modification the syphon is eliminated and the liquid is run from the trap 5 through a valved duct to the coil 14, and the economizing circuit by-passes the main coil 14. In a further modification the main coil and pressure build up coil are combined into a single coil through which during pressure build up liquid from the trap 5 is vaporized until the automatic valve 9 closes. Liquid is then forced through the coil and the vapour delivered through a check valve and the duct 12. An economizing circuit is also provided. The converter is rendered invertible by arranging the pressure build up coil in two sections 26, 26, Fig. 3 with the valve 9 between, and by providing a duct 25 with check valves 23, 24 and a gravity valve 45 which closes on invertion to prevent flow of liquid through the valve 15. In each of the above constructions liquid oxygen may be withdrawn at a drain 2. The container 1 may comprise an inverted Dewar flask, the downwardly extending neck of which has a gas phase duct 36, Fig. 10, surrounded by a perforated invar ring 34 and a liquid trap 37 leading to a pressure build up duct 49. Alternatively the flask may have a re-entrant neck to improve insulation. In assembly the container is mounted in a frame or box surrounded by the coils 6, 14.
Patent GB-328631-A (GB)
Title: Improvements in or relating to means or apparatus for signalling the direction course of road vehicles
IPC: B60Q1/34
Filed: 1929-02-01
Abstract: 328,631. Brier, A. Feb. 1, 1929. Road-traffic signals on vehicles.- Comprises an intermittently rotated casing having a narrow rectangular strip forming a line unprovided with an arrow head, the tine being formed on or by the glazed front of the casing which is arranged to occupy four positions 45‹ apart, the total movement being through 135‹; the line may be illuminated at night. The signal is duplicated at front and rear of the vehicle and may be mechanically or electrically operated, or operated by the exhaust gases of the engine. The, casing 2 has a rectangular glazed front 3 and sloping sides and back as shown, and is provided with a central boss 7 secured to a sleeve 11 housing the socket for an electric bulb 1. The end of the sleeve is secured to a hollow shaft 16 mounted in bearings in a bracket 19. The bracket houses a pulley 25 mounted on the shaft 16. The ends of the Bowden wires 29, 30 are passed over and secured to the pulley 25. After passing through the bracket 19 the wires are similarly passed over and secured to a pulley 34 mounted on a spindle 35 carried on a bracket fixed to the dashboard or the like. The spindle 35 carries a second pulley 39 provided with wires for operating the rear signal. The spindle 35 is turned by a handle 47 to operate the signal. The pulley 39 is provided on the rear face with four recesses spaced angularly 45‹ apart, each of which may be engaged by a spring ball 52. When the line is horizontal " stop " is signalled. When the line is vertical, " travelling forward " is signalled, while the two angular positions signify turning " right " or " left " as the case may be.
Patent GB-1491943-A (GB)
Title: Inspection and repair apparatus for a nuclear reactor fuel assembly
IPC: G21C17/06
Filed: 1975-01-27
Abstract: 1491943 Inspecting &c. of radioactive fuels WESTINGHOUSE ELECTRIC CORP 27 Jan 1975 [6 Feb 1974] 3487/75 Heading B4Q Apparatus for inspecting and repairing an elongated radioactive fuel assembly comprises tubular shielding means for receiving the assembly, and viewing means and access means mounted on the shielding means rotatably about the axis of the latter.
Patent GB-818268-A (GB)
Title: Process for the thermal rearrangement of salts of aromatic carboxylic acids
IPC: C07C51/41
Filed: 1957-02-01
Abstract: The invention comprises a process for the thermal re-arrangement of salts of benzene carboxylic acids to produce terephthalic acid, by heating a mixture containing alkali metal ions, cadmium or zinc ions as catalyst, anions of a benzene carboxylic acid, fluorine ions and carbonate ions, in such proportions that there are at least 0.25 mol. of the cadmium or zinc ion per mol. of carboxylic acid salt, and at least two fluorine ion equivalents and two carbonate ion equivalents per mol. of cadmium or zinc, the carbonate ions if desired being partially replaced by equivalent amounts of halide ions. Preferable amounts of catalyst are from 0.35-1 mol. of cadmium fluoride per mol. of alkali metal salt of benzene carboxylic acid. The reaction mixture may also contain diluents, e.g. alkali metal chlorides, fluorides or carbonates, in an amount not generally exceeding 50 per cent by weight of the reaction mixture.  The anions and cations may be added in the form of various compounds provided that the final mixture contains requisite percentage composition of the ions.  Other cations may also be present provided that they are not catalytically active, e.g. magnesium and calcium and they are preferably present in quantities not greater than 2 equivalents per mol. of the cadmium or zinc.  The starting materials may be mono, di or polycarboxylic salts of benzene, e.g. those containing 3-6 carboxyl groups per molecule, and may be introduced into the reaction mixture as such or in the form of the components from which they are formed, e.g. mixtures of the free acids, their anhydrides or chlorides with alkali metal carbonates.  Tri and tetra carboxylic acids may be formed as by-products.  The constituents of the reaction mixture are preferably mixed as uniformly as possible, for example, by grinding the separate constituents in ball mills, swing mills or rotary mills, and then mixing together.  Alternatively the mixture may be allowed to react in a compact state, by previously compacting, e.g. by pressure or sintering.  The constituents may also be mixed in the form of aqueous solutions or suspensions and then dried, e.g. in a drum drier or atomizer.  The reaction is carried out at temperatures between 300 DEG  C. and the decomposition temperature of the carboxylic acid salts present, preferably up to 550 DEG  C.  Inert gases, e.g. carbon dioxide, hydrogen, nitrogen, methane, ethane, propane or butane may be present and the reaction charge is preferably free from water as far as possible.  The reaction may be carried out under pressure or in vacuo, as well as under normal pressure.  Examples are given of the preparation of terephthalic acid using different mixtures of the following starting materials: potassium, cadmium, and zinc benzoates, and carbonates; potassium, cadmium, calcium and sodium fluorides and sodium carbonate.
Patent GB-1213381-A (GB)
Title: Improvements in railroad ballast tamping machines
Inventor: STEWART JOHN KENNETH
IPC: E01B27/16
Filed: 1968-01-23
Abstract: 1,213,381. Railway ballast tamping. CANRON Ltd. - CANRON LIMITEE. 23 Jan., 1968 [24 Jan., 1967], No. 3605/68. Heading E1G. In a railway ballast tamping vehicle two tamping heads 35, each comprising a pair of' tampers 36, are movably mounted on respective sub-frames 26 independently movable along an overhanging transverse guide 24 on a frame 20 which is swingable about a vertical axis 16 on the vehicle chassis 10. The tampers 36 in each pair may be squeezed together by jacks (not shown) and each head 35 may be raised and lowered by jacks 39. The frame 20 is counterbalanced by the vehicle engine 60 and each sub-frame 26 has a bracing element 45 carrying rollers engaging a transverse guide 50. The ends 52 of the guide 50 may fold for transport. In a modification the centrally-pivoted frame 20 is replaced, Fig. 4 (not shown), by a frame whose transverse guide (24) is pivoted at one or other end.
Patent GB-1376843-A (GB)
Title: Fluid administration devices
IPC: A61M3/00
Filed: 1972-01-26
Abstract: 1376843 Medicament injectors I M S Ltd 26 Jan 1972 [5 Oct 1971] 3613/72 Heading A5R A medicament injector comprises a fluid passage member 40 having a central bore 42 and extending lengthwise within a thrust portion 14 provided within a barrel 10 from which extends a urethral tip 59 communicating with the central bore 42. Means 50 is associated with the end of member 40 for puncturing a diaphragm sealing a central opening 32 in a rubber stopper 20 reciprocable within a vial 18 containing the medicament. The means 50 may be provided by a point on a tip 48 carried by member 40 and having openings 56 comunicating with the bore 42. A flange 58 on tip 48 maintains member 42 substantially concentric with respect to the thrust portion 14. The stopper 20 has a part 24 of reduced diameter adapted to be threaded into thrust portion 14. In a modification, the tip 48 is omitted, the puncturing means being provided by the end of member 40 which is bevelled and the flange 58 being integral with member 40.
Patent GB-541472-A (GB)
Title: Improvements in and relating to devices for synchronising flashlamps with photographic shutters
IPC: G03B15/04
Filed: 1941-03-17
Abstract: 541,472. Synchronizing flash lamp with photographic shutters. KODAK, Ltd. (Eastman Kodak Co.). March 17, 1941, No. 3670. [Class 98 (i)] A flashlamp synchronizing device for detachable connection to a camera comprises a housing containing a slidable plunger which is normally moved to an inoperative position in which it is spaced from the shutter release member, together with means which normally hold the plunger in this position, and release it only when sufficient pressure is applied to the plunger to ensure that the operation of the shutter release will take place as well as the closure of the flashlamp circuit. As shown, a cylindrical casing formed of two parts 2, 3 connected by an insulating member 4 contains a plunger 5 into which is adjustably screwed a rod 6 passing through an insulating bushing 25 and adapted to engage and operate the shutter release member 12 when a reduced end of the casing is screwed into a threaded opening 10 in the shutter casing. The plunger is operated against the action of a spring 7 by a cable release 17 screwed into an insulating bushing 15 in the end of the casing. The lamp circuit is connected by a plug engaging pins 19 20 connected to the two parts 2, 3 of the casing, and when the plunger is moved to the position shown by operating the cable release 17 the lamp circuit is completed through the pin 19, casing portion 2, plunger 5 and rod 6, release member 12, the shutter casing, the casing portion 3, and the pin 20. To ensure that contact shall not be made between the rod 6 and release member 12 unless the plunger 5 is operated with sufficient force to operate the member 12, spring- pressed balls 26 in the plunger engage in a groove 28 in the casing and prevent movement of the plunger from the inoperative position until the necessary force is applied. Specification 491,885 is referred to.
Patent GB-689579-A (GB)
Title: Methods of minimising corrosion by scaling in combustion apparatus
IPC: C10L1/12
Filed: 1950-02-13
Abstract: In a method of minimizing corrosive scaling of the iron and steel components of combustion apparatus operating on fuel oil which will, upon combustion, produce an ash containing vanadium pentoxide, an ash-modifying substance comprising an appropriate amount of magnesium oxide, zinc oxide, barium carbonate or other metallic oxide or compound so selected as to react chemically with the vanadium pentoxide to form a stable vanadate is injected into the apparatus. Various other metallic oxides e.g. calcium, barium, strontium, as well as various carbonates-calcium, strontium-may be employed as ash-modifiers.  The modifying substances may be introduced into the apparatus as a suspension in fuel oil or they may be injected with the combustion air. Examples of industrial applicability are given as oil-fired heaters and open cycle gas turbines.