baber/WOPTO huggingface dataset:
Patent GB-326337-A (GB)
Title: An improvement in or relating to portable fire extinguishers
IPC: A62C13/00
Filed: 1929-03-04
Abstract: 326,337. Goodall, J. A. March 4, 1929. Portable pressure reservoirs.-In a fireextinguisher of the type comprising a container, in which a liquid is sealed under pressure. and a detachable head carrying a piercing member for the seal, the container a is divided by vertical partitions into a series, as shown, four, of separate compartments a<1>. Each compartment is charged with liquid under pressure, and is provided with a nipple a<2> sealed by a capsule b. The container is mounted in a casing g to which the head d is screwed, and is pressed up to a leather or like disc e in the head d by a spring f. The head carries rotatable plates h, j in which is mounted a piercer k. By this arrangement, the piercer can be positioned over any particular compartment a<1> and forced in to unseal it, the seals of the other compartments remaining unaffected. The escaping liquid passes into a chamber o between the disc e and the plate p, and escapes' to a nozzle r. In a modification, all the nipples a<2> are sealed by a common capsule. In another modification. several separated sealed containers are arranged within the casing g. The Provisional Specification describes an arrangement wherein the head is rotatable, being held to the casing by spring fingers engaging a flange on the casing.
Patent GB-476663-A (GB)
Title: Improvements in apparatus and control means for regulating the flow of liquid from areservoir
IPC: E03D9/03
Filed: 1936-03-09
Abstract: 476,663. Disinfecting ; drop delivery apparatus. HATTON, A. R. March 9, 1936, No. 7071. Void. Convention date, March 11, 1935. [Class 81 (i)] [Also in Group XVIII] Apparatus for regulating the flow of liquid from a reservoir, applicable for supplying a deodorant in drops to a water closet, comprises a reservoir 1 mounted on a wall or other support by brackets 11 and fitted internally with a tube 4 extending through the base of the reservoir and having an inlet aperture 5 near the base. The tube 4 is fitted with a needle valve 6, the stem 7 of which is adjustable by screwing in a bridge piece 3 which supports also the upper end of the tube 4. Flow of liquid is adjusted by the valve 6, but may be interrupted by means of a plug cock 10 below the reservoir.
Patent GB-787349-A (GB)
Title: Improvements in or relating to signal transfer circuits employing transistors
Inventor: BRIGHTMAN BARRIE
IPC: H03F5/00
Filed: 1955-03-11
Abstract: 787,349. Transistor pulse circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. March 9, 1956 [March 11, 1955], No. 7160/55. Class 40 (6). In a circuit fed with positive pulses from a high impedance source A, NPN transistors TR2, TR3 are connected so that one or other is conducting to provide a low output impedance. In the normal condition, transistor TR2 and discharge tube V1 are cut off, the high anode potential causing transistor TR3 to be conducting so that output lead B is near earth. A positive-going pulse applied at A causes transistor TR2 and also tube V1 to conduct. The fall in anode potential cuts off the transistor TR3 so that the point B rises to the emitter potential of transistor TR2, the low output impedance being maintained by the conducting emitter-collector path.
Patent GB-855990-A (GB)
Title: Improvements in link linings for wall and roof supports in mines
IPC: E21D11/15
Filed: 1959-03-03
Abstract: 855,990. Mine-roof supports. LOBBERT & CO. G.m.b.H. March 3, 1959 [March 24, 1958], No. 7263/59. Class 20(2) A link-lining roof or wall support element in which the outer U-member 3, 4 is three times the width of the inner U-member 1, 2.
Patent GB-512682-A (GB)
Title: The manufacture and application of fungicidal and bactericidal agents
IPC: C07F3/10
Filed: 1938-03-08
Abstract: 512,682. Seed disinfectants. I. G. FARBENINDUSTRIE AKT.-GES. March 8, 1938, No. 7290. Convention date, March 8, 1937. Samples furnished. [Class 81 (i)] [Also in Group IV] Organo-mercury compounds are prepared by reacting an alkyl mercury oxide, hydroxide or salt with a nitrogenous compound having a hydrogen atom attached to the nitrogen which is replaceable by or is replaced by a metal. The alkyl group of the mercury compound is not substituted, whilst the nitrogenous compound contains no carboxylic acid group. The products, whose mercury atom is attached on the one hand to alkyl and on the other to nitrogen, are useful as fungicidal and bactericidal agents, e.g., for disinfecting seed grains or surgical instruments, preserving wood or coating ships' bottoms. For these purposes they are mixed with solid or liquid diluents or their formation is effected in the presence of the diluent : solid diluents specified are talc, kaolin, calcium sulphate, chalk, sawdust, calcium naphthol pitch sulphonate, active charcoal, silica gel and diatomaceous earth, and as liquid diluents water, alcohol and acetone. Nitrogenous residues mentioned are those of imidazole, triazole, pyrrole, indole, succinimide, thiomorpholine, phthalimide, sulphonamide, o-benzoic acid sulphimide, purine, pseudothiohydantoin, allantoin and naphthosultam. As the reaction takes place in the presence of water, mixtures of the reaction components may be used for the dressing of seed, in which case the formation of the organo-mercury compound is effected by the humidity of the soil. According to the example, methylmercury hydroxide is slowly added to a methanol solution of naphthosultam, when the N- methylmercury-naphthosultam separates out'; the same compound is obtained when an aqueous solution of methylmercury nitrate is added to a solution of naphthosultam in caustic soda. Specification 486,986 is referred to. Samples have been furnished under Sect. 2 (5) of the products prepared by interaction of (1 & 3) methylmercury hydroxide, obtained by heating methylmercury chloride with sodium ethylate in alcohol solution and removing the sodium chloride, with carbazole and the disodium salt of carbozole-2 : 5- disulphonic acid ; (2) butyhnercury hydroxide, obtained by heating butylmercury chloride with sodium ethylate, with naphthosultam: (4 & 5) ethylmercury hydroxide, from ethylmercury chloride and sodium ethylate, with phthalimide and o-benzoic acid sulphimide: (6 & 7) mixtures of talc and the organo mercury compound prepared under 5 and 6 above.
Patent GB-360322-A (GB)
Title: Improvements in or relating to the projection of cinematographic films and the like
IPC: G03B21/60
Filed: 1931-03-10
Abstract: 360,322. Optical-projection apparatus. INNES, R. T. A., 3, Webb Street, Yeoville, Johannesburg, South Africa. March 10, 1931, No. 7383. [Class 97 (i).] Kinematograph pictures are projected, as shown in the Figure, on a screen 4, and a reflection of the images projected upon the screens is viewed in the mirror 2, which is of glass with a silvered or like backing 2b or may be of other non-transparent material. A concave mirror, which mya be of spherical, paraboloidal, or other formation, and which has a focal length greater than the distance by which the screen is separated from the mirror may be employed.
Patent GB-654424-A (GB)
Title: Improvements in and relating to agricultural tractors
IPC: A01B63/111
Filed: 1948-03-10
Abstract: 654,424. Agricultural implements. FORD MOTOR CO., Ltd. March 10, 1948, No. 7391. Convention date, May 6, 1947. [Class 6(i)] A tractor having an automatic hydraulically actuated draft depth control for an implement is characterized in that height control mechanism is provided to enable the implement attachment means to be held at any desired height between its upper,and lower positions. The height control means may operate in conjunction with draft depth control or independently thereof. As shown, the draft depth control comprises a link 17 connected to a bellcrank lever 52 which rests against a spring 56. A rod 54 operates through a link 57 to move a fulcrum pin 51 of a lever 44 which operates an intake or exhaust valve to adjust the position of a piston 19 connected to lifting levers 26 to raise or lower the implement. The lever 44 is pivoted to an eccentric part of a shaft 46 to which is fixed a handle 47 for raising or lowering the implement. The height control mechanism comprises a link 66 pivoted to shaft 46 and having at one end a flange 67 in which a plunger 69 is slidably mounted and is forwardly urged by a spring 74. A U-shaped cam member 77 is pivotally connected to the flange 67 and is connected by links 63, 81 to a hand-lever 83 which is held in either of two positions by a spring- urged ball 86. As shown in Fig. 4, the mechanism is inoperative, the cam 77 holding the plunger 69 away from the lever. The handle 83 is operated to move the cam 77 torelease the plunger 69 which then abuts against lever 44. Any movement of lever 47 causes movement of lever 44 which pivots about the end of plunger 69 and operates the valves to raise or lower the arms 26. A cam 87 is fixed on a shaft 24 and co-operates with a follower 88 mounted on link 66 and causes the plunger 69 to move the lever 44 to the neutral position. If the implement strikes an obstacle it will cause the spring 56 to be compressed and over-rule the depth control, the pivotal point 51 moving the lever 44 to raise the implement. Specifications 470,069 and 470,087 are referred to.
Patent GB-703560-A (GB)
Title: Improvements in or relating to facsimile recording apparatus for copying printed andillustrative matter
IPC: H04N1/032
Filed: 1951-03-30
Abstract: 703,560. Copying-telegraph receivers. RONEO, Ltd., and LANT, R. March 31, 1952 [March 30, 1951], No. 7452/51. Class 40 (3). [Also in Group XXXV] In electrical facsimile recording apparatus, the needle for producing the record comprises a length of wire with a free portion between a support and the recording surface, and the free unsupported part is automatically adjustable to remain substantially constant in length as the needle wears down or is burned away. As shown, the wire 1, having its free end 2 engaging the drum 21, is supported in a curved tube 17 carried by a pivoted frame 18 and passes between rollers 8, 9 to a reel 3 rotatably mounted on an insulating frame 7. The roller 9 is mounted in a fixed bracket 11 and the roller 8 is carried by a bracket 10 biased by a spring 16. The frame 18 is urged towards the drum 21 by a spring 22 and carries an arm 28 which, as the free end 2 shortens, cuts off a light beam normally incident via a slit in a masking disc 25 on a photo-cell 26. The modified cell output controls an amplifier and relay arrangement 27 to switch in a motor 12 to rotate the roller 9 to feed additional wire 1 through the guide 17. The circuit arrangement 27 may be arranged to produce intermittent operation of the motor 12 so that the lengthening of the portion 2 is effected in steps. A pillar 6 carrying a spring 5 may form one of the connecting terminals of the recorder.
Patent GB-1011716-A (GB)
Title: Turbine-driven charger for an internal combustion engine
Inventor: DREESEN GLEN EDWARD
IPC: F02C6/12
Filed: 1964-02-24
Abstract: 1,011,716. Centrifugal compressors. CATERPILLAR TRACTOR CO. Feb. 24, 1964, No. 7533/64. Heading F1C. A turbine-driven charger for an I.C. engine comprises a compressor wheel coaxially disposed within structure forming an air inlet and supported by the compressor housing, a stationary diffuser disc supported by the housing and disposed coaxial with the compressor wheel, an adjustable diffuser disc in spaced facing relation with the stationary disc and defining a diffuser passage therewith, and means operable to vary the axial position of the adjustable disc in response to change in engine speed. In a charger for an I.C. engine, comprising an exhaust-gas turbine 11 driving a centrifugal compressor 12, a disc 23 can be moved axially in relation to a fixed disc 22 so as to vary the width of the diffuser passage 24 of the compressor. A pump, such as a fuel pump or an oil pump, driven by the I.C. engine and developing a pressure which varies with the engine speed, supplies hydraulic fluid to a piston connected through a link 41 and a ball joint to the disc 23, whereby the disc is rotated, against the action of a spring, to an angular position which varies with the engine speed. Engagement of the disc 23 with a helical thread 32 causes it to take up a corresponding axial position whereby the width of the diffuser passage 24 is at a minimum at low engine speed and at a maximum at high engine speed. This prevents compressor surge at low engine speed.
Patent GB-468745-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/71
Filed: 1937-03-15
Abstract: 468,745. Friction clutches. BORG & BECK CO., Ltd. March 15, 1937, No. 7542. Convention date, Nov. 9, 1936. [Class 80 (ii)] The radial disengaging levers 9 of a spring- engaged friction clutch are pivotally mounted on studs 10 which are of rectangular cross-section and which pass through corresponding openings in the cover plate 5 and the levers, respectively, whereby displacement of the levers out of the radial plane is prevented. The levers, the outer ends of which coact with the pressure plate driving lugs 7 through struts 23, have pockets 19 in which are mounted pins 20 passing through enlarged apertures 21 in the studs so as to provide a rolling mounting for the levers. The axial position of each stud 10 is determined by a pin 13 passing through an enlarged aperture in the end of the stud and engaging in a pocket 12 in the cover 5, the pin being held in the pocket by a torsion spring 22 acting between the cover 5 and the lever 9. By replacing a pin 13 by another of different diameter, the axial position of the stud may be varied.
Patent GB-1386821-A (GB)
Title: Bladed rotors including split-nut assemblies
IPC: F16B37/10
Filed: 1972-02-18
Abstract: 1386821 Mounting axial-flow compressor rotor blades GENERAL ELECTRIC CO 18 Feb 1972 [25 May 1971] 7626/72 Heading FIT [Also in Division F2]  To lock the rotor blades 24 of an axial-flow compressor in a gas turbine engine, the blades having dovetail root portions 32 engaging in a complementary groove 16 in the rotor disc 11 and being inserted in an enlarged entrance aperture 36 and slid into position along the groove, a fastener assembly 37 is provided including a split nut 38 which is shaped to fit into the groove 16 about the aperture, the nut segments 40, 40' being transversely spread apart to lock the rotor blades by the insertion of a set screw 46. If the nut 38 and the screw 46 are each formed with a double lead thread, the segments 40, 40' need not be matched and can be interchanged one with another. By peening over the end of the nut thread, the screw can be locked in position. Indentations in the edges 56, 56' of the blades adjacent the aperture 36 minimizes the space between blades taken up by the locking assembly 37. In an alternative embodiment Fig. 5 (not shown) the nut is split into two segments in an axial plane at right angles to that of the nut shown in Fig. 2.
Patent GB-896512-A (GB)
Title: Improvements in or relating to hydraulic pumps or motors and hydrostatic transmissions
Inventor: CREIGHTON JOHN PURCELL
IPC: F16H39/14
Filed: 1959-03-05
Abstract: 896,512. Reciprocating pumps. FORD MOTOR CO. Ltd. Sept. 9, 1959 [March 5. 1959], No. 7644/59. Class 102(1). [Also in Group XXIX] A hydraulic pump or motor of the axial-piston type comprises a cylinder barrel contained by a pair of bearings, at least one of which is a combined radial and thrust bearing, and a floating valve distribution member abutting the port face of the cylinder barrel. As shown, the pump and motor are of similar construction and combined to form a hydraulic transmission. The pump has a cylinder barrel 1 which is supported in combined radial and thrust bearings 2, 3 and provided with cylinders 5, which may be parallel or slightly inclined to the shoes of the barrel and container engaging a swash plate 8. Ports 5a in the barrel cooperate with passages 10, 11 in a valve member 9 which controls the fluid flow to and from pressure chambers 9a, 9b in a stationary member 12 leading to passages 26, 27 in a valve member 23 controlling the fluid flow to and from cylinders 19 in the barrel of the motor. The valve member 9 of the pump is free to float in O-rings 13, 14 and is formed with passages 10a, 11a leading to dummy ports 30, 31. In operation, the thrust of the cylinder barrel is taken up partly or wholly by a separating film of oil between the barrel and valve member 9 the bearings 2, 3 carrying the remainder of the thrust. Axial thrust on the valve member is taken up by the pressure in the chambers 9a, 9b acting on the back faces of the valve, the thrusts of the barrel and valve member and the force of the separating film of oil being in balanced relationship. The valve face of chamber 9b is circular and is equal in area to the valve face of chamber 9a which is crescent-shaped. The centres of pressure of the two faces are equi-distant from the axis of the pump and the dummy ports 30, 31 cause the centre of pressure on the front face of the valve member to be coincident with that on the rear. The O-rings permit the valve member to wobble and follow the movements of the cylinder barrel. The valve member 23 of the motor is similar to the valve member 9. The pump and motor may be at an angle to one another. Specification 852,329 is referred to.
Patent GB-1509771-A (GB)
Title: Production of wood wool
IPC: B27L11/04
Filed: 1976-06-24
Abstract: 1509771 Making woodwool B T ROGERS 24 June 1976 [24 March 1975] 7667/75 Heading B5L An apparatus for forming strands of woodwool comprises a rotary cutting wheel 1 having a series of apertures 22 in its rim 18 which may be frusto-conical or cylindrical, each aperture having a set of scoring cutters 31 lying ahead of a planing cutter 30. Magazines 37 are arranged around the periphery of the wheel, each including a centrally disposed pusher member (42, Fig. 4, not shown) for urging the timber 29 against the rim of the wheel, the pusher member being moved in the magazine by two pairs of hydraulic rams 49, 51, which act through sprockets 53 upon a chain 54 connected to arms 55 of the pusher member. The apparatus is mounted upon the ground by a cylindrical concrete structure and a frustoconical woodwool collector is disposed within the concrete structure. In an alternative arrangement, the magazine may comprise a single feed ram or a lever mechansim. The ram(s) or lever mechanism may be manually or automatically controlled. The cutter blades may be mounted in a removable cutter box.
Patent GB-488484-A (GB)
Title: Improvements in metal bottles or containers
IPC: B65D8/08
Filed: 1937-01-06
Abstract: 488,484. Metal bottles ; closure caps. CROWN CORK & SEAL CO., Inc., CALLESON, A., and CALLESON, E. A. Jan. 6, 1937, No. 7672/38. Addition to 488,427. [Class 83 (ii)] [Also in Group XVII] An additional secondary curl 231 is concealed within the hollow bead integral with the metal bottle as described in the parent Specification, in which the bead is strengthened by the part 21 lying on the conical shoulder 6 of the mouth. The bead is shaped at 24 to form a large fiat sealing surface. The bottom of the bottle is secured to the body and may have a filling opening therein.
Patent GB-835654-A (GB)
Title: Improvements in or relating to devices for weeding plant rows or for thinning out beets
IPC: A01B41/04
Filed: 1958-03-11
Abstract: 835,654. Agricultural implements. VAN DER LELY N.V., C. March 11, 1958 [March 13, 1957], No. 7749/58. Class 6(1). A device for weeding plant rows or for thinning out beets comprises at least one weeding wheel and means for detachably fastening the device on a hoe or a hoe holder of a weeding machine. As shown a hoe stem has secured to it by means of a clamping claw 5 and bolt a transverse rod 4 on which are adjustably mounted sleeves 7 each having a projecting arm 8 terminating on a shaft 9 for a weeding wheel 10 which is freely rotatable thereon. The sleeves 7 are adjustable along the rod 4 and are held by pins 11. The weeding wheels may each consist of a disc having a hub 16 and tines 17 formed in pairs from a single piece of wire and secured by means of a bolt 18 the tines being held between lugs 19 disposed around the periphery of the wheel. In order to control the pressure of the weeding wheels on the ground weights may be fastened on either side of the weeding wheels or may be fastened on lugs mounted on the sleeves 7 to act as counterweights.
Patent GB-859977-A (GB)
Title: Improvements in hydraulic couplings and the like
IPC: F16H39/04
Filed: 1958-03-11
Abstract: 859,977. Revolving cylinder pumps. ANGUS & CO. Ltd., G., and TIMMS, J. T. March 5, 1959 [March 11, 1958], No. 7816/58. Class 102(1). [Also in Group XXIX] A hydraulic transmission comprises co-axial pump 1 and motor 2 bodies which have opposed ports 6, 7, for pump-to-motor exchange of liquid under pressure through a thrust section of a common rotational path of the liquid and for motor-to-pump return of liquid through a return section of the path, and a freelyrotatable valve ring 3 interposed between the ports and having two separate passages, one passage 8 constantly being in the thrust section of the path and the other passage 10 constantly being in the return section of the path. The pump body 1 is rotated by an input shaft 14 and has radially-disposed pistons 16 which engage a reaction ring 18 carried by a bearing frame 20, the eccentricity of which can be varied by a piston-and-cylinder device 23 to vary the output from the pump and provide for forward or reverse rotation of the output shaft 15. The output from the pump passes through the ports 6 and quadrantal slots 8, Fig. 2, which are interconnected by grooves 9, in the ring 3 to the ports 7 of the motor which has radially-disposed pistons 16 co-operating with a reaction ring 19 fixed to the casing 13 of the transmission, the motor body 2 being secured to the output shaft 15. The return flow of liquid from the motor passes through a cresent-shaped space 10 formed between the shaft 14 and the inner surface of the valve ring 3. Arcuate slots of different mean radii from that of the slots 8 may be provided for the return flow. The valve ring consists of two members 27, 28, Fig. 5, which are supported in members 26, 29 and in which are formed the quadrantal slots 8 and grooves 9 ; seals 30 are provided between the members. During forward transmission, the pressure of the liquid in the slots 8 acts at a point F to press the members 27, 28 into sealing engagement with the pump and motor bodies, and during reverse transmission, the pressure of liquid in the crescent-shaped space 10 acts at a point G to effect sealing between the members and the pump and motor bodies. Leakage from the liquid circuit is replenished by a pump 31 which delivers liquid through passages 33 in the shaft 14 and valves 34 to the pump cylinders. The pistons in the pump and motor are inclined and the surfaces engaging the reaction rings are spherical to reduce wear. Specification 756,399 is referred to.
Patent GB-951764-A (GB)
Title: Water-insoluble disazo-dyestuffs derived from diaminotetrachlorodiphenyl and process for their manufacture
IPC: C09B35/08
Filed: 1960-03-04
Abstract: The invention comprises dyes of formula <FORM:0951764/C3/1> where A may contain one or more alkyl or alkoxy groups of 1 to 3 carbon atoms and/or halogen atoms and/or acylamino groups, but not two methyl groups in the 2 and 4 positions. The dyes are made by conventional diazotisation and coupling processes.  Coupling may be effected in substance or on the fibre or some other substratum. The dyes colour vegetable and regenerated cellulose fibres in yellow shades. Examples are provided of the preparation of the dyes and their use in dyeing cotton, representative of the coupling components used being acetoacetylaminobenzene and its 2.5-dimethoxy - 4 - chloro-, 2 - methyl-, 2 - methyl - 3 - chloro- and 2-methoxy-5-chloro-4-acetylaminobenzenes.