baber/WOPTO huggingface dataset:
Patent GB-309282-A (GB)
Title: Improved combined petrol tap and lock
IPC: B60R25/042
Filed: 1928-03-07
Abstract: 309,282. Waterhouse, E. J. March 7, 1928. Closure members. - A combined petrol tap and lock comprises a number of rotary ported tubes B and a central plug G disposed in an outer casing A, the ends of the tubes and plug being marked as dials with numbers &c. and provided with pegs E by means of which the tubes and plug are rotated. The rotating parts may be fixed in a desired position by means of pins inserted into holes J passing through the outer case A and tubes B into the plug G. A lip guard F is provided in the petrol passage, as shown, to prevent the upward insertion of a wire for illicitly ascertaining the setting of the dial for petrol supply. A screw cap H prevents petrol leakage from the outer case A.
Patent GB-1423806-A (GB)
Title: Piston and slide-hoe assembly for an hydraulic piston machine
IPC: F01B1/06
Filed: 1974-02-15
Abstract: 1423806 Connecting-rods ROBERT BOSCH GmbH 15 Feb 1974 [17 Feb 1973] 7116/74 Heading F2T A piston and slide-shoe assembly for an hydraulic piston machine comprises a slide-shoe 1 having a part spherical shaft end 6 held in a bore 12 of the piston by a sleeve 13 which is fixed in place by hardened plastics material located in opposed recesses 17, 18 in the sleeve and bore. During assembly, the sleeve 13, which may be divided into two or more segments, is positioned with a gap a while hardenable plastics material is injected through a bore 20 to permanently connect the assembly together. In another embodiment, Fig. 3 (not shown), the plastics material is injected to fill both the gap (a) and the opposed recesses adjacent the lower end of a two-segment sleeve (26) while the sleeve is lifted by a member (29).
Patent GB-589415-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L19/08
Filed: 1945-03-22
Abstract: 589,415. Joint - making packing. JARVIS, E. O., and HORROCKS, H. March 22, 1945, No. 7261. [Class 122 (iii)] [Also in Group XXVIII] Metal packing ring 7 for a pipe joint comprises two or more coaxial ring-like parts formed internally and externally with sharp edges which penetrate into the walls of pipe and coupling, between which it is compressed axially. The parts of the ring are of square or diamond section or in the form of helices, and may be integral with one another or an assembly of two or more loose parts.
Patent GB-857555-A (GB)
Title: Electric remote control for hydraulic presses
Inventor: BARKER CHARLES EDWARD
IPC: B30B15/18
Filed: 1958-03-06
Abstract: 857,555. Metal-working presses. LOEWY ENGINEERING CO. Ltd. June 8, 1959 [March 6, 1958], No. 7265/58. Class 83 (4). An electrical remote-control device fcr controlling the length of stroke of a movable part such as the crosshead 10 of an hydraulic press, particularly a forging press, comprises a first potential divider 26 whose slider 27 is mechanically coupled to the part 10, a second potential divider 22 whose slider 24 is adapted to be pre-set in dependence upon the desired length of stroke, an electrical differential device such as a differential amplifier 21 into which the two potentials are fed and whose output, corresponding to the potential difference, is used to control an electromechanical device 16 for opening, throttling or closing a valve 11 in the hydraulic circuit driving the said part, such that the extent of opening of the valve is dependent upon the potential difference, means 35, 36 for reducing one of the potentials independently of the positions the sliders and means such as a further potential divider 29 for compensating any electrical unbalance between the two potentials. Potential dividers 22, 29 control the down stroke of the crosshead ; the compensating divider 29 has a pre-set slider 32 connected directly with slider 24, for setting the end of the downstroke, and another slider 31 mechanically coupled to move with the crosshead 10. During the downstroke of the latter the potentials from divider 26 and dividers 22, 29, pre-set by variable resistance 35; are fed into amplifier 21 which controls a torque motor 16 driving through clutch 18 and shaft 15, the stem 13 of a servo-valve 11 controlling the movement of the crosshead. Thus the valve 11 is gradually throttled as the downstroke proceeds and is closed when the potential difference becomes zero. A further pair of potential dividers 23, 30 are used to control the upstroke and switches 37-40, which may be hand or remote controlled, select the upstroke or downstroke. Clutch 18 and lever 17 enable valve 11 to be controlled manually. The press may be used for first upsetting or penetrating a workpiece at a slow speed and then planishing it by a number of short fast strokes.
Patent GB-1023919-A (GB)
Title: Improvements in and relating to methods of making foundry patterns destructible in the mould
IPC: B22C7/02
Filed: 1965-02-19
Abstract: 1,023,919. Patterns. SULZER BROS. Ltd. Feb. 19, 1965 [March 12, 1964], No. 7271/65. Heading B3F. Destructable patterns are made from a mixture of a water-soluble crystalline substance in powder form and a thermoplastic binder, which is moulded under pressure at temperatures below the melting temperature of the crystalline substance. The latter may be urea, adipic acid, a lactam such as caprolactam, or a salt such as ammonium formate. The binder may be higher multi-valent alcohols and their esters and ethers, e.g. polyvinyl alcohol, polyglycol, polyalkalene oxides, glycerin oxyalkyl ether, esters of monovalent and polyvalent carboxylic acids, e.g. phthalic acid glycolic acid esters, or epoxy stearic acid ethyl ester.
Patent GB-1132437-A (GB)
Title: Polymerisation of di-olefins and catalyst therefor
Inventor: DAWANS FRANCOIS
IPC: C07C29/03
Filed: 1966-02-18
Abstract: 1,132,437. Polymerisation catalyst. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. 18 Feb., 1966 [18 Feb., 1965; 3 July, 1965], No. 7289/66. Heading B1E. [Also in Division C3] A catalyst comprises a compound of a metal of Gps. IV to VIII and a co-ordination complex of nickel and a cyclo-poly-olefin having a ring containing at least 6 atoms of carbon. Said compound is preferably a halide e.g. chloride of a metal of Groups IVa, Va or VIa. Examples of said compound are TiCl 4 , TiCl 3 , TiBr 4 , Til 4 , TiF 4 , ZrCl 4 , VCl 4 , MoCl 5 , FeCl 3 , NiCl 2 , SnCl 4  and SbCy 5 . Examples of the nickel complex are given.
Patent GB-267708-A (GB)
Title: An improved bottle suitable for crown corks
IPC: B65D1/02
Filed: 1926-03-17
Abstract: 267,708. Davies, W. H., and Bray, T. A. March 17, 1926. Capsules and like closures.-In a bottle for crown corks ' a groove B extends for half or approximately half the circumference of the neck and the lower edge E of the groove lies inside the common tangent DC to the two flanges on the neck of the bottle. The arrangement permits the crown cork' to be removed by an upward movement or a twist of a coin inserted in the groove. Specifications 21138/06 and 230,308 are referred to.
Patent GB-1249708-A (GB)
Title: Improvements in the production of oxymethylene copolymers
IPC: C08G2/00
Filed: 1969-02-12
Abstract: 1,249,708. Oxymethylene copolymers. CELANESE CORP. 12 Feb., 1969 [12 Feb., 1968], No. 7492/69. Heading C3P. An oxymethylene copolymer is prepared by subjecting trioxane to liquid phase polymerization with one or more comonomers in the presence of a chain transfer agent and, as catalyst, a salt or acid having a hexachloroarsenate, hexafluoroarsenate, hexachlorophosphate or hexafluorophosphate anion, the salt or acid being stable and soluble in at least one of the monomers used. Suitable chain transfer agents are C 1-18  alcohols, C 1-18  carboxylic acids or anhydrides, polyoxymethylene dialkyl ethers, polyoxymethylene diesters, and the reaction products of C 1-18  primary or secondary alcohols and C 1-7  aldehydes. Suitable catalysts are aryl diazonium, aryl oxonium and alkyl oxonium salts. In the example trioxane and ethylene oxide are copolymerized in the presence of methylol, p-chlorophenyldiazonium hexafluorophosphate and methylene chloride. The polymer is hydrolysed with tri-n-butylamine in methanol/water to give stable hydroxy ethyl ether end groups.
Patent GB-677426-A (GB)
Title: Improvements in or relating to dust removal in swing frame grinding machines
IPC: B24B27/00
Filed: 1949-03-19
Abstract: 677,426. Swing-frame grinders. LUKE & SPENCER, Ltd., and STURROCK, J. D. April 19, 1950 [March 19, 1949], No. 7513/49. Class 60. [Also in Group XXVIII] A swing-frame grinding-machine comprising a tubular frame 4 suspended by a bar 22 which is pivoted to a supporting means, not shown, has at one end a partially hooded grinding wheel 14 driven by an electric motor 7 through pulleys 17, 18 and a belt 9b, and at the other end has a base 6 supporting the motor 7, a speed change gate 9, and an elbow 24 to which is connected a flexible suction duct 30 (see Group XXVIII). The wheel 14 is applied to the workpiece manually by a handle 23, and a pivoted feeler when adjusted by a handle 11 to engage the wheel serves to remove particles from the wheel and also controls the speed gate belt fork 9a through a cable 10 to vary the wheel speed.
Patent GB-1492709-A (GB)
Title: Filter device for oil containers
IPC: B01D46/64
Filed: 1976-02-26
Abstract: 1492709 Filter for oil container PUROLATOR FILTER GmbH 26 Feb 1976 [22 March 1975] 7604/76 Heading BIT A filter device for the aeration and deaeration of an oil container comprises a housing 1; a first tubular filter element 2 mounted in the housing for coalscence of oil mist particles entrained in the air during deaeration, the inner face of element 2 being in communication with an interior chamber of the housing; a second tubular filter element 3 mounted concentrically about the first element to define an annular chamber 4 between the elements, the outer face of element 3 being in communication with the atmosphere; an aperture 5 in the housing by which the interior chamber communicates with the oil container; and a one-way valve 7 between annular space 4 and aperture 5, such that during deaeration the valve is closed so that air from the oil container passes from aperture 5 to atmosphere via both filter elements during de-areation the valve is closed so that air from atmosphere passes to aperture 5 via only outer filter element 3, allowing oil droplets collected by the first filter element 2 to return to the oil container. Element 2 may be formed of glass fibre of thickness 3 mm and pore size approximately 0.5Î10<SP>-6</SP>m and element 3 may be formed of pleated paper of pore size 5 to 25Î10<SP>-6</SP> m.
Patent GB-1282882-A (GB)
Title: Preparation of trans-trans-enriched 4,4'-diamino-dicyclohexylmethane and dicarboxylic acid salts thereof
Inventor: BESWICK GEOFFREY ERNEST
IPC: C07C209/00
Filed: 1969-02-12
Abstract: 1282882 Preparation of trans-trans-4,4<SP>1</SP>- diaminodicyclohexylmethane and dicarboxylic acid salts thereof IMPERIAL CHEMICAL INDUSTRIES Ltd 26 Jan 1970 [12 Feb 1969] 7639/69 Heading C2C A process for the preparation of dicarboxylic acid salts of 4,4<SP>1</SP>-diaminodicyclohexylmethane of enriched trans-trans content comprises in a first stage hydrogenating diaminodiphenylmethane in water as a solvent in the presence of a ruthenium catalyst and in a second stage removing the catalyst and treating the resultant liquor with a dicarboxylic acid and separating the solid trans-trans enriched salt of the dicarboxylic acid and 4,4<SP>1</SP>-diaminodicyclohexylmethane from the liquid phase. The salt thus obtained may be converted to 4,4<SP>1</SP>-diaminodicyclohexylmethane by neutralization.
Patent GB-343768-A (GB)
Title: Improvements in children's perambulators
IPC: B62B9/18
Filed: 1930-03-08
Abstract: 343,768. Perambulator suspensions. SAWARD, A., 105, Abbeville Road, Brixton, London. March 8, 1930, No. 7652. [Class 108 (ii).] - In a spring suspension for a perambulator, the body is mounted on a frame 1 which is provided w i t h brackets 4a, 4b mounted on a sub-frame carrying or comprising the wheel axles 2a, 2b and looped resilient members 3a, 3b disposed laterally to and between the wheel axles, the tops of the loops being rigidly connected to the brackets. Cross ties 6a, 6b stiffen the sub-frame and auxiliary springs 5 may be provided. The frame 1 may be formed of a single or separate metal strips and in a modification it is formed of two lateral members with upturned feet at their ends.
Patent GB-622408-A (GB)
Title: Improvements relating to alternating current rectifiers of the dry surface contact type
IPC: H01L25/03
Filed: 1947-03-20
Abstract: 622,408. Asymmetrically - conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., CUBITT, R. H., and SELL, R. G. March 20, 1947, No. 7653. [Class 37] Metal rectifiers 5 are clamped in a stack on an internal rib or partition 2 in a metal casing 1, which conducts away the heat, forms one terminal of the assembly and has its ends hermetically sealed by insulating plates 19 through which the terminals 21 extend. The rectifiers are clamped on both sides of the partition by a hollow rivet 14 thereon and are connected by wires to the rivets or eyelets 21 in the plates 19. A rubber cap 33 fits over one end of the casing to cover connectors 32 on the rivets on one end plate, and a contact spring 30 is attached to a rivet on the other end plate. The rectifiers are threaded with spacer discs 7 and connector discs 8 and end contact discs 12 on an insulating tube 4 in the partition 2, a spring washer 15 being interposed between one end of the rivet 14 and a contact disc 12. The outer rims 20 of the casing are spun over the end plates. Alternating current is fed to the rectifiers adjacent the partition ; the contact discs 12 form the positive output connected to two rivets 21, the partition and casing forming the negative terminal. The casing may have a bayonet catch for attachment to a tube.
Patent GB-292263-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/38
Filed: 1927-03-19
Abstract: 292,263. Tomlinson, A. V., (Compagnie des Freins Westinghouse). March 19, 1927. Fluid-pressure.-In a triple valve, comprising avalve 22 influenced by the pressure in the brake cylinder to regulate the rate of flow of fluid there.- to, in which the valve. 2'2 is controlled by an abutment 24, a portion 30 of the area of which is subject to the brake-cylinder pressure only after the initial movement of the abutment, this portion of the area of the abutment is normally in free communication with the atmosphere, by passages 25, 26 so that there is no tendency for fluid! prerssure to build up on this area by leakage and thus prevent the piston moving at a definite pressure. The brake cylinder is supplied by ports 18, 19, 23 and also by a port 21 and past the valve 22 untiL a predetermined pressure is obtained which forces the piston 24 away from a seat 29 and subjecting the portion 30 also to this pressure which ensures rapid movement of the piston. The valve 22 is then closed so that the piston is supplied through ports 19, 21 only, the piston 24 also cuts off communication between passages 25, 22 and thus between the portion 30 of the piston 24 and the atmosphere. The passage 18 is supplied by a passage 17 and a graduating valve 4 in the main slide valve when the triple, valve piston, moves on brake application, the train pipe conduit 9 is also adapted to be vented to a bulb 14 by passages 10, 11, 12 and a cavity 15 in the slide, valve. The bulb 14 is vented to an atmospheric port 16 by cavity 15 in release position. The port 19 is formed in a cock 20 which is adapted to be turned by a handle 33 to close or open the port 19 according to the conditions of service.. Specification 252,346 is referred to.
Patent GB-994816-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B11/02
Filed: 1963-02-26
Abstract: 994,816. Dual fuel engines; cooling charge; regulating. SULZER FRERES S.A. Feb. 26, 1963 [Feb. 26, 1962], No. 7699/63. Heading FIB. In a dual fuel engine having a cooling system for the air supply incorporating an expansion turbine 26, the air is by-passed by a valve 24 around the cooler, when operating on gaseous fuel, at a rate which increases as the load falls. In the dual fuel engine shown the gas inlet valves are operated hydraulically by pumps 5 and liquid fuel is injected by pumps 4, the control rods 7, 6 of the pumps being connected to a floating lever 8 actuated through links 10, 11, by a governor 12 the setting of which is controlled by a lever 18. For gas operation a slide 42 is moved to the left by handle 44 and on increase of load the lever 8 pivots to increase the gas supply up to the maximum set by sleeve 42, after which the lever 8 moves rod 6 to increase the liquid fuel supply beyond the pilot amount necessary for ignition, determined by stop 40. The pressure in circuit 32 controlling the by-pass valve 24 is limited by a relief valve 35 and is controlled by valves 36, 37. With maximum pressure in circuit 32 valve 24 is moved to by-pass the air from exhaust driven turbo-charger 20 through pipe 22 around the turbo cooler system comprising in series cooler 27, compressor 25, cooler 28 and expansion turbine 26. During operation on liquid fuel, as soon as rod 6 moves beyond the pilot injection position, valve 36 is opened to reduce the pressure in circuit 32 and open valve 24. For operation on gaseous fuel, valve 36 is closed and valve 37 is increasingly opened by lever 18 as the load is so that the pressure in circuit 32 is gradually reduced, whereby valve 24 moves towards closing and an increasing amount of air is passed through the turbo-cooling system.
Patent GB-1163075-A (GB)
Title: Multiple Unit Pricing.
IPC: G01G19/414
Filed: 1968-02-16
Abstract: 1,163,075. Quantity-price calculations. SANITARY SCALE CO. 16 Feb., 1968 [18 April, 1967], No. 7745/68. Heading G4A. A computing weighing scale provides variable output indications regarding a numerical submultiple, price per unit weight and total price, the last being normally controlled by a price register fed from a multiplier receiving signals representing a measured weight and controlled by price per unit weight switches, a "submultiple" switch causing the register input from the multiplier to be divided. A (weighing) scale produces a weight pulse train which is multiplied at 12 by the setting of manual "price per unit weight" switches 18 (which can alternatively be set with the price for a plurality of weight units or a plurality of similar articles). If a manual "submultiple" switch 24 is set to 1, a bias signal appears on line 44 to cause a "submultiple register" 32 to behave as a series of monostables so each pulse of the product train from multiplier 12 is passed through the register to be counted in "total price register" 20. For any other setting of the "submultiple" switch 24, the "submultiple register" 32 acts at a binary counter which is preset in response to the first product pulse from multiplier 12 with a count depending on the setting of the "submultiple" switch 24 and counts subsequent pulses until its capacity is reached when the "total price register" (counter) 20 is incremented and the "submultiple register' 32 is preset again by the next product pulse. Thus the product train from multiplier 12 is divided. The presetting is done in response to all zeros in register 32 which causes AND gate 36 to open a "preset gate" 40 and close a "count gate" 34. The settings of the "price per unit weight" switches 18 and the contents of "total price register" 20 are normally printed out at 54, 55 respectively but actuation of a manual "function" switch 28 causes the former to be printed out at 55 and the latter disregarded. Provision to print "submultiple" and "net weight" indications is also made at 52, 56.
Patent GB-1357455-A (GB)
Title: Headbox
IPC: F16L39/00
Filed: 1972-02-18
Abstract: 1357455 Headboxes BELOIT CORP 18 Feb 1972 [19 March 1971] 7756/72 Heading D2A A headbox comprises a slice 11 for feeding stock to a fourdrinier wire, the slice having in its chamber 17 elongate vibrational members 20 extending downstream in cantilever manner from a support 18 at their upstream ends whereby when stock flows through the chamber the members 20 vibrate and maintain dispersion of the fibres in the stock. The slice opening 16 may be varied by relative movement of the slice walls 27, 28. The members 20 may be plates but are preferably rods and these may be round, flat, curved or spiralled. The central rods 21 are aligned across the centre of the support 18 while the other rods are circularly arranged around holes in the plate, the holes being for the passage of the stock from a chamber 14. The rods may have bulbous ends, Fig. 4 (not shown).
Patent GB-345798-A (GB)
Title: Improvements in devices for practising harmonica technique
IPC: G10D7/12
Filed: 1930-03-10
Abstract: 345,798. Mouth organs. PATERSON, W. C., 2425, North Rockwell Street, Chicago, U.S.A. March 10, 1930, No. 7784. [Class 88 (ii).] A mouth organ 1 is fitted with a sliding mouth-piece 4 with aperture 5 for sounding melody notes. Other apertures 6 .. 9 in the mouth - piece, for sounding a c c o m - paniment notes, may be closed by a spring strip 17 pressed on by the tongue. The mouth-piece carries a pointer 11 working over a scale 13 to indicate the notes to be played, the music consisting of a card bearing numerals in appropriate order.
Patent GB-354777-A (GB)
Title: Improvements in and relating to dyeing with vat dyestuffs
IPC: D06P1/22
Filed: 1930-03-10
Abstract: Vat dyes, dyeing with.-In dyeing fibres, particularly those of animal origin, with vat dyes, an acidic substance, other than boric acid, having a dissociation constant between 10-8 and 10-13, is added to the alkaline reducing solutions or to the dyebaths in quantities more than sufficient theoretically to neutralize the whole of the alkali present, but insufficient to give the solution a PH value above 8. Phenol, o- or pcresol, and resorcinol are specified acidic substances; hydroquinone is also mentioned, but if used, it dyes wool a fawn shade which becomes superimposed on the shade of the vat dyestuff.  The invention may be carried into effect by the processes described in Specification 340,267, in which boric acid is employed as the acidic substance.  Examples of dyeing with Caledon red BN with phenol and resorcinol as acidic substances are given. Specifications 262,506 and 263,473, [both in Class 15 (ii), Dyeing, Processes &c. for], are referred to.