baber/WOPTO huggingface dataset:
Patent GB-795179-A (GB)
Title: A process for the preparation of salts or other derivatives of naphthalene-2,6-dicarboxylic acid
Inventor: RAECKE BERNHARD
IPC: C07C51/41
Filed: 1956-01-13
Abstract: The potassium salt of naphthalene-2 : 6-dicarboxylic acid is prepared by heating the potassium salt of a naphthalene monocarboxylic acid at a temperature above 360 DEG  C. in the presence of an inert medium other than carbon dioxide.  The free acid and derivatives thereof may be obtained from the potassium salt in known manner.  The reaction conditions are similar to those described in the parent Specification.  The inert medium may contain an admixture of carbon dioxide.  Specified inert media are carbon monoxide, nitrogen, the rare gases, methane, ethane, butane, hexane, benzene, toluene, xylene and naphthalene.  The potassium naphthoate starting material may be admixed with salts of benzoic or phthalic acids.  Specified catalysts for the reaction are lead and mercury, or their compounds, and particularly cadmium and zinc, or their oxides or salts.  In examples: (1) potassium b -naphthoate was heated in an autoclave in an atmosphere of nitrogen using cadmium fluoride as catalyst, the reaction product was dissolved in hot water, filtered, and naphthlene-2 : 6-dicarboxylic acid precipitated by the addition of hydrochloric acid; (2) as in (1) but using a mixture of nitrogen and carbon dioxide as inert medium; (3) as in (1) but using potassium a -naphthoate and cadmium oxide as catalyst; (4) as in (1) but using cadmium chloride as catalyst, the inert medium being a mixture of liquid naphthalene, naphthalene vapour and carbon dioxide.
Patent GB-122458-A (GB)
Title: Improvements in or relating to Strainers and like Devices for use on Aircraft.
IPC: B64C3/00
Filed: 1918-01-22
Abstract: 122,458. Regent Carriage Co., and 8oca, J. Jan. 22, 1918. Wire-strainers.-An aeroplane stay-wire strainer comprises a right and left handed screw C engaging square nuts D, E housed within U-shaped members A, B formed from sheet-metal blanks of the shape shown in Fig. 3, the screw passing through central holes A<3>. The ends of the blanks may be connected by a hollow rivet F or by a headed pin G.
Patent GB-1483131-A (GB)
Title: Ic engine throttle control
IPC: F02D11/02
Filed: 1975-10-13
Abstract: 1483131 Regulating IC engines S B DIPPLE 13 Oct 1975 [11 Jan 1975] 1252/75 Heading F1B A control mechanism includes a cable 1 adapted to connect an accelerator pedal or hand lever to a throttle of an I.C. engine and means to adjust the effective length of the cable. The means comprises a piston rod 3 which is actuated by a piston 4 in response to changes in inlet manifold vacuum or manually, hydraulically or electrically. In the embodiment shown in Fig. 1, increase in the inlet manifold vacuum, e.g. by movement of the accelerator to close the throttle valve, moves the piston rod 3 to the left so allowing the throttle valve to close further and decrease in the vacuum causes the throttle valve to open. In another embodiment, Fig. 2 (not shown) a sheath 6 of the cable is attached to and arm 7 on the piston rod 3.
Patent GB-347619-A (GB)
Title: Improvements in steam generators
IPC: F22B1/22
Filed: 1930-01-14
Abstract: 347,619. Methods of generating steam. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Jan. 14, 1930, No. 1309. Convention date, Jan. 14, 1929. Addition to 347,199. [Class 123 (ii).] In a steam generator comprising a combustion chamber 1 to which air is supplied under a pressure such that the combustion gases pass over the heating surfaces of the generator at about the velocity of sound as described in the parent Specification, the air compressor 10 is driven by a turbine 8 operated by the combustion gases, which flow from the combustion chamber through long tubular nozzles 6 forming the heating surfaces of the steam generator. Water circulates from the generator through a separator drum 12 back through a pump 11 to the generator. Steam is taken off from the drum and superheated in a coil 16 around the combustion chamber. The main part of the air passes up around the walls 3 of the combustion chamber and mixes with the fuel entering through the burner 20. Part of the air is led into the burner and a part passes into the combustion chamber through holes 22 in the walls. The nozzle tubes 6 may be straight and may be restricted at their inlet ends. Specification 304,300, [Class 123 (ii), Steam generators &c.], is referred to.
Patent GB-846658-A (GB)
Title: Improvements in or relating to liquid fuel burning systems
IPC: F23D11/28
Filed: 1959-01-14
Abstract: 846,658. Burners. DUIKER & CO'S FABRIEK VAN APPARATEN EN WERKTUIGEN N. V., J. Jan. 14, 1959 [Jan. 14, 1958], No. 1324/59. Class 75(1). A liquid fuel burning system comprises a pressure fuel spray burner 15 connected to a pressure fuel supply conduit 1 and to a return conduit 16 for unsprayed fuel, and combustion air supply conduit 27 and means for interrelating the air supply and fuel supply, the means comprising an air control valve 26 in the combustion air supply conduit and throttling means located in a branch conduit connected to the conduit 1, the thrott ling means comprising a cylinder 4 having a piston 8 moveable therein which is coupled with the air control valve the branch conduit being connected to one end of the cylinder and the fuel return conduit 16 being connected to the other end of the cylinder and an overflow valve 9 in the cylinder through which the fuel returns conduit may be placed in communication with a discharge conduit 20 connected to the cylinder between the piston and overflow valve, the overflow valve being loaded by a compression spring 7 bearing aganinst the piston. At the fuel entry end of the cylinder an auxiliary piston 5 is adjustably mounted by a stop 6. At the other end of the cylinder a stop 12 adjusts the capacity of the burner. Initially valves 14 and 22 in fuel supply branch conduits are closed and the pump 2 drives fluid into the cylinder which fluid moves the piston 5 until limited by the stop 6 and moves the piston rod 10 to open the air control valve 26 to scavenge the burner. The valve 14 is opened for the burner to operate at low pressure. To increase the rate of burning the valve 22 is opened to supply fuel to the space between the pistons which fuel moves the piston 8 causing the air control valve to open further and the overflow valve and now return valve 17 to tend to close thus increasing the pressure in the return conduit 16 and the capacity of the burner. A restriction 23 in the branch conduit of the fuel supply limits the rate of movement of the piston 8.
Patent GB-775751-A (GB)
Title: Improvements in or relating to the control of water flow through steam boilers
Inventor: PLUMMER GILBERT ASHTON
IPC: F22B29/00
Filed: 1951-01-17
Abstract: 775,751. Steam boilers. THOMPSON WATER TUBE BOILERS, Ltd., J. April 4, 1952 [Jan. 17, 1951], No. 1327/51. Class 123(2) In a forced-circulation boiler comprising for example, steam-generating tubes 1, a 'steam-and-water separator 7 and a superheater 9, the flow of water to the tubes 1 is controlled by a valve 4 on the output side of the feed pump 2 so as to maintain a substantially constant steam to water ratio at the outlet 6 thereof under all conditions of load. Preferably the valve 4 is acuated by a diaphragm or bellows 17 mounted in a pressure chamber 18 which is connected to the outlet 6 through a bleed passage 11, a resistance 12, e.g. a coiled choke tube, and an adjustable preset leak-off valve 14 with expansion chamber 22, the under side of the diaphragm being open to atmosphere and the valve proper 20 being biased by a spring 21 towards its open position. The off-take 10 of the separator 7 may lead to waste or be connected through a pilot-operated non- return valve to the water inlet side of the valve 4. The invention may be applied to a natural-circulation boiler in which case the usual downcomer is connected to the inlet side of the valve 4.
Patent GB-1402725-A (GB)
Title: Composite web of labels
IPC: B65C11/02
Filed: 1972-06-07
Abstract: 1402725 Labels MONARCH MARKING SYSTEMS Inc 7 June 1972 [23 June 1971 8 Dec 1971 (3)] 1640/75 Divided out of 1402722 Heading B8F A composite strip of labels comprises a supporting web 32 to which labels 36 are releasably secured by adhesive 37, the web having groups of cuts therein at spaced intervals each group consisting of a transverse cut 415 providing a drive face and a weakening cut 39S spaced therefrom so that a drive tooth can rupture the web at the weakening 42S caused by the weakening cut. The group of cuts may be I-shaped as shown, T-shaped (Fig. 12, not shown), U-shaped (Fig. 14, not shown) or triangular (Fig. 16, not shown). The cuts may penetrate partially into or completely through the labels 36. Specifications 1,402,722, 1,402,727 and 1,402,728 (Division B8) are referred to.
Patent GB-606744-A (GB)
Title: Improvements relating to water gas generators and gas producers
IPC: C10J3/34
Filed: 1946-01-17
Abstract: 606,744. Discharging ashes from gas-producers. HUMPHREYS & GLASGOW, Ltd., and HAWES, J. M. Jan. 17, 1946, No. 1677. [Class 51(i)] In a water gas generator or gas-producer of the selfclinkering type provided with a rotating ash pan 2, an ash plough and associated dam plate 3, a blast of air is directed from the nozzle 7 onto the rim and lip of the ash pan at 5 behind the dam plate. In a modification a nozzle opening near the top of the rim 6 is supplemented by an upwardly directed slot formed in the wall of the nozzle, which follows the contour of the rim.
Patent GB-1018869-A (GB)
Title: Self-checking ionization radiation detector
IPC: H01J47/02
Filed: 1964-01-15
Abstract: 1,018,869. Ionization chambers. UNITED STATES ATOMIC ENERGY COMMISSION. Jan. 15, 1964 [April 8, 1963], No. 1724/64. Heading H1D. An ionization chamber radiation detector contains a thermionic directly-heated filament which provides a source of electrons for checking and calibrating the chamber. Calibration may be either as a function of the filament voltage, or at the saturation current for the device.
Patent GB-256476-A (GB)
Title: Improvements in or relating to rotary boring tools
IPC: B28D1/14
Filed: 1926-01-22
Abstract: 256,476. Palmer, R. H., and Rigg, R. W. Jan. 22, 1926. Drills.-A rotary boring-tool has a flat body with shank E. A slot C divides the body and opens to a clearance space C<1>. The ends of the limbs are backed-off to form cutting points.
Patent GB-870644-A (GB)
Title: A holder for an electronic valve or other electrical device having projecting terminal prongs
IPC: H01R33/76
Filed: 1960-01-19
Abstract: 870,644. Holders for electronic valves &c. UNITED - CARR FASTENER CORPORATION. Jan. 19, 1960 [April 24, 1959], No. 1925/60. Class 38 (1). The body 10 of a holder for an electronic valve or other electrical device having projecting terminal prongs has a valve shield ground clip 22 and a centre-pin 23 which are formed integrally from a metal blank, Fig. 4. A lug 29 prevents solder from filling the interior of the centre pin in a dip-soldering operation, and tearing of the metal when the lug is bent laterally is prevented by apertures 40, 41 provided at the base of the lug. Damage to the metal when a rib 24 is formed is similarly avoided by apertures 42, 43. The clip and the pin are joined by a strap 30 which lies in a channel 18 formed in the underside of the body. The pin is located by engagement of the rib 24 on a shoulder 17 of a central base opening 14 and by lugs 25 which are turned laterally to abut an annular shoulder 16 in the opening. A portion 31 adjoining the strap 30 is secured to the body 10 by a rivet 34.
Patent GB-950695-A (GB)
Title: Improvements in laminated pressure or cushioning pads
Inventor: GALLACHER DANIEL
IPC: F16F1/40
Filed: 1962-01-18
Abstract: 950,695. Laminates. IOCO Ltd. Jan. 9, 1963 [Jan. 18, 1962], No. 1971/62. Heading B5N. Resilient pads, suitable for use as pressure pads for laminating presses, spacer parts in load-bearing components, gaskets and vibration damping mountings, comprise superposed layers 1 of elastomer-coated woven material and layers 2 of uncoated or lightly coated woven material the latter layers providing air spaces 3. The woven material may be of glass fibres or continuous glass filaments or of asbestos fibres. The elastomeric material may be silicone rubber, which may be partially cured before the layers are assembled and be subjected to further curing under heat and pressure after assembly, and thereafter to a post-curing treatment.
Patent GB-615223-A (GB)
Title: Improvements relating to the manufacturing, in a mould, of polymerised products
IPC: B29C39/00
Filed: 1946-01-22
Abstract: Substances being polymerized in moulds are subjected whilst in the fluid state during the initial stage of polymerization, to an intermittent or continuous movement, which counteracts separation under gravity of differently polymerized products, until the viscosity is sufficient to prevent the separation.  Preferably, the mould is subjected to a swinging or periodical rotary movement or successive inverting movements.  In an example, a mould formed from polished nickel plates is filled with a mixture of 94 per cent methyl methacrylate, 5 per cent acetylated cellulose and 1 per cent urea peroxide and is rotated at 1 1/2 revs. per min. at 43 DEG  C. until the liquid is gelatinous, when rotation is stopped and polymerization completed without further movement. Specification 475,552 is referred to.
Patent GB-396628-A (GB)
Title: A mixing and distributing cock
IPC: F16K11/12
Filed: 1933-01-23
Abstract: 396,628. Mixing and distributing cocks. TH•ODORID’S, M., 7, Rue Edgar PoÙ, Paris. Jan. 23, 1933, No. 2140. Convention date, Jan. 25, 1932. [Class 135.] A mixing and distributing cock, as for example, hot and cold water, comprises a pair of hollow rotary plugs 5, 9 mounted concentrically one within the other in a casing 1. The outer plug 5 has ports 6, 61, disposed preferably 135‹ apart, for controlling the admission of the two fluids in variable proportions, whilst the inner plug has a central transverse partition 14 having ports 10 and 12, 13 disposed at right-angles to one another above and below it, for controlling the delivery of the mixture, or one fluid alone, to one or more outlets above or below the partition, as for example to a bath or spray, alternatively. Each plug has a handle 7 or 15 for independent operation, the handle 7 on the outer plug being preferably at 45‹ to one of the ports.
Patent GB-1138993-A (GB)
Title: Improvements in or relating to an arresting gear tape
IPC: B64F1/02
Filed: 1967-01-16
Abstract: 1,138,993. Arresting aircraft. E. W. BLISS CO. 16 Jan., 1967 [19 Jan., 1966], No. 2172/67. Heading B7G. [Also in Divisions B2 and D1] Arresting gear for an aircraft S comprises a steel pendant P connected at each end to a tape 10 comprising on each of the opposite wide surfaces thereof an elastomer of substantially constant static and sliding wet and dry coefficient of friction of #0À4 between two surfaces of the tape when adjacent one another, so that when the tape is uncoiling from a reel stick-slip of the tape on the reel is minimized (see Division D1). Each tape is wound on a reel 12 of an arresting unit 14 and after an arrest rewind motors 16 associated with each unit 14 are engaged through transmission 17 to rewind the reels 12.
Patent GB-789347-A (GB)
Title: Glass aerosol containers and method of making the same
IPC: F16K3/26
Filed: 1956-01-23
Abstract: <PICT:0789347/III/1> A glass aerosol container 22 is sheathed in a coating 37 of plastic material having elastic qualities sufficient to prevent glass fragments from escaping should the container shatter as a result of excessive internal pressure, the sheath having one or more perforations 43 to allow venting.  The coating, which is in non-bonded relation with the container body, may be a vinyl chloride-acetate resin, a butadiene-acrylonitrile copolymer compound, cellulose acetate butyrate resinous compound or a melamine resin. Preferably the formation of the sheath is accomplished by first forming a plastisol includng the desired plasticizer such as di-iso-octyl phthalate or tricresyl phosphate and other desired ingredients with finely milled vinyl chloride resin and causing this liquid plastisol composition to adhere to the container in the desired thickness, after which the coating is cured.
Patent GB-346855-A (GB)
Title: An improved coupling for hose pipe and the like
IPC: F16L33/22
Filed: 1930-02-07
Abstract: 346,855. Pipe joints. McGOWAN, P. D., 23A, Fettes Row, and DRUMMOND, W. F., Oakfield House, Pleasance, both in Edinburgh. Feb. 7, 1930, No. 2181. [Class 99 (i).] A coupling for hose pipes comprises a tapered spigot inserted within the end of the hose pipe D, a tapered sleeve B, and a nut C screwed on to the sleeve and having an internal flange C<1> bearing against a washer E which is made in two parts for insertion in a recess E<1> in the spigot.
Patent GB-571417-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/06
Filed: 1944-02-07
Abstract: 571,417. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 7, 1944, No. 2215. Convention date, Feb. 10, 1943. [Class 38 (ii)] A peaking transformer comprises a threelegged core, a primary B on the centre leg 12, opposed series connected secondaries A, C on the outer legs 11, 13, and air gaps 15, 16 in both outer legs, one of the gaps being bridged by a few laminations of saturable magnetic material. Thus,'all the flux produced by the primary is carried by the leg having the bridged gap for a short portion of each cycle while the flux is at a low value, thus producing a voltage impulse at the secondary terminals, while during the remainder of the cycle, after the bridge saturates, the flux divides equally between the two outer limbs and no resultant voltage appears at the secondary terminals.
Patent GB-489546-A (GB)
Title: Improvements in or relating to the production of variegated textile yarns
IPC: D01H5/36
Filed: 1937-01-26
Abstract: 489,546. Roller drawing - gear for producing fancy yarns. SYKES & SONS, Ltd., J., and SYKES, E. Jan. 26, 1937, No. 2235. [Class 120 (ii)] In mechanism for driving the rollers of a spinning-frame for producing fancy yarns comprising cam driven ratchet devices for driving the bottom rollers above the speed of the usual ratchet drive, the ratchet devices are driven by the cams through change gearing. As shown, the ratchets c, d for speeding up the bottom rollers a<1>, b<1> carry pinions c<3>, d<3> through change gears e, f to toothed wheels g, h which are driven by pawls g<2>, h<2> actuated by the cams m<3>, n<3> through levers m, n, links i, j and levers g<1>, h<1> carrying the pawls and loosely mounted on the axes of the wheels g, h. The cams are interchangeable and are detachably carried by a plate mounted on a stud p and driven by gears from the shaft r<5>. The usual knopping blades s, s<1> are actuated from a cam t<2> also driven from the shaft r<5>.
Patent GB-360752-A (GB)
Title: Improvements in or relating to hot water heating installations
IPC: F04D15/00
Filed: 1931-01-23
Abstract: 360,752. Multiple-way valves. MIRRLEES WATSON CO., Ltd. and DAY, C., 45, Scotland Street, Glasgow. Jan. 23, 1931, No. 2239. [Class 135.] Dual closure valves.-A rotary cylindrical valve 1 when in position to byepass the circulation pump 4 of a hot water heating installation, by means of its upper rotary disc-like valve face, presents a straight through passage 1 forming a continuation of the piping 2, 31. The valve consists of a cylinder with the passage 1 therein of the same diameter as the piping and wings 6, 6<1> are provided to guide water through port 3 to the pump and into outlet 31 when the pump is in circuit as shown in Fig. 1. On turning the valve through 90‹ by means of handle 5, the cylindrical body of the valve presents a straight passage free from obstruction from inlet 2 to outlet 3<1>. The handle 5 may be interconnected with the motor for driving the pump.
Patent GB-1373162-A (GB)
Title: Vortex pump
IPC: F04D15/00
Filed: 1972-01-17
Abstract: 1373162 Circumferential flow pumps KLEIN SCHANZLIN & BECKER AG 17 Jan 1972 [15 Jan 1971] 2239/72 Heading F1C A circumferential flow pump has a by-pass 2 between outlet 3" and inlet 3' provided by machining or turning down impeller 1 and adjustable in size by a device 4'. As shown impeller 1 having fluted periphery 1' rotates in two part housing 3 which has channels 1"' provided between inlet 3' and outlet 3". The gap between the impeller periphery and casing part 4 is adjusted by the drift 4' of square cross-section, or a screw (4") Fig. 2 (not shown) of circular cross-section.
Patent GB-149582-A (GB)
Title: Improvements relating to attachment clips and pillars for mounting saddles on juvenile tricycles, cycles, and like machines
IPC: B62J1/08
Filed: 1920-01-24
Abstract: 149,582. Jones, F. W., and Jones, B. E., (trading as Frankby Manufacturing Co.). Jan. 24, 1920. Saddle supports and clips for juvenile cycles. The seat-pillar b is made in one piece of square or angular section, and the eye of the band clip c, carrying the clamping-plates e, f for the saddle, is of similar section, so that, when tightened-up by means of the nut h on its screwed shank d, no turning of the saddle can take place about the pillar b. The upper clampng-plate e has a notched surface to engage the pillar b, and the lower plate f is formed with a boss g to take the pressure of the screw h. Notches j are formed between the two clamping-plates to engage two or more of the wires or springs on the saddle underframe. The square shank a of the seat pillar also enables it to be non-rotatably fixed within the frame tube of the machine by means of a setscrew.
Patent GB-640103-A (GB)
Title: Improvements in or relating to the multi-colour printing of textile materials
IPC: B41F17/00
Filed: 1948-01-26
Abstract: 640,103. Multicolour printing. FORSHAW, J. Jan. 26, 1948, No. 2347. [Class 100 (ii)] A process for the multicolour printing of a textile fabric composed of fine threads, such as silk, comprises printing in turn from a series of relief printing surfaces, one for each colour, the fabric being held under tension in both directions substantially parallel to and slightly spaced from the inked printing surfaces and pressed into contact with each surface in turn for impression. The surfaces comprise printing plates 24, 25, 26 of zinc, wood or other material carried on a support 27 and thereby lowered to a position for inking with hard rubber rollers, runners being provided to restrict inking to the relief portions, and raised to a position about <SP>1</SP>/ 10  inch below the web. The web is tensioned longitudinally by a roller 18 and laterally by a roller 19 having three rows of curved pins 20, and is maintained tensioned by pin belts 14 running in guides in the machine frame in line with the web edges. The web is forced on to the pins by a soft rubber roller 21. Registering marks are provided on the plates, for alignment with marks on the web. The colours used are textile colours or letterpress inks, of such quality as to remain fast during laundering operations.
Patent GB-667869-A (GB)
Title: Electrical spade type connectors
IPC: H01R11/12
Filed: 1950-01-30
Abstract: 667,869. Cable and wire terminals. AIRCRAFT-MARINE PRODUCTS, Inc. Jan. 30, 1950 [Feb. 8, 1949], No. 2361/50. Class 38 (i). [Also in Group XXII] A flat spade terminal 2 has an opening 12 with an entrance defined by the legs 8 of its tongue 6, the legs being provided with deformed areas 14, whereby when pressure is applied to the terminal the size of the entrance is decreased. The areas effecting the partial closure of the entrance are formed by the ruffles 14, upon which the pressure is applied by a male screw terminal 18, and they extend from the outside rim of the terminal to near the opening 12, and have triangular sides meeting at a peak 15, the opposite points 24 thereof being offset from the central axis 20 of the screw so as to wrap the parts 22 of the legs around the screw terminal 18. More than one pair of ruffles may be provided on the terminals which can be stamped as a chain from a blank (Fig. 6, not shown), (see Group XXII).