baber/WOPTO huggingface dataset:
Patent GB-330945-A (GB)
Title: Improvements in and relating to the production of sulphate of ammonia
IPC: C01C1/248
Filed: 1929-03-20
Abstract: 330,945. Adam, W. G., Murdoch, D. G., and Gas Light &. Coke Co. March 20, 1929. Drawings to Specification. Ammonium sulphate is crystallized from a solution, obtained by the reaction of ammonia, carbon dioxide, and calcium sulphate, to which is added small quantities of a salt of iron (ferric), chromium, aluminium, titanium, beryllium, zirconium, thorium or yttrium, or a chromate or dichromate, and free acid, whereby elongated crystals are produced showing little tendency to cake, owing to the high proportion of free space in the mass. Specification 330,947 is referred to.
Patent GB-400085-A (GB)
Title: Improvements in or relating to means for indicating the position and route of submerged submarines
IPC: B63G8/00
Filed: 1933-03-25
Abstract: 400,085. Marine signalling-apparatus. BELLONI, A., 6, Via L. Cadorna, La Spezia, Italy. March 25, 1933, No. 9077. [Class 118 (ii).] To signal the position or indicate the course of a submerged submarine, a combustion chamber for producing and emitting smoke is fitted in the superstructure of the vessel, control of the combustion being effected through valves and a switch located in the interior. The smoke may be derived from a spray of naphtha issuing from a nozzle 21 mounted in the combustion chamber 10 and fed with spirit and compressed air through valved pipes 15, 16, ignition being effected by an electric spark controlled by a switch 20. The smoke passes through a bent pipe 12 into an open-topped tube 11 placed, with the combustion chamber, abaft the turret 1.
Patent GB-252841-A (GB)
Title: Improvements in sprayers for use on carburettors
IPC: F02M3/08
Filed: 1925-04-06
Abstract: 252,841. A.M.A.C., Ltd., and Bowen, H. H. April 6, 1925. Spray carburettors. - A sprayer 2 having an outlet or outlets 4 delivering fuel into an air passage controlled by a throttle sliding or twisting in a part 5, is arranged above a metering orifice 3 and is used in conjunction with a bypass 6 on the engine side of, but not controlled by the throttle valve. In order to eliminate " flat spots " as the throttle is opened, additional apertures such as 7, 8 are formed in the sprayer in the line of air flow and between the main outlet or outlets and the edge of the throttle adjacent the by-pass 6. The invention is not restricted to carburettors having a sleeve type of throttle valve.
Patent GB-1448543-A (GB)
Title: Suture package
IPC: A61B17/06
Filed: 1974-02-28
Abstract: 1448543 Jointing by stamping ETHICON Inc 28 Feb 1974 [26 Oct 1973] 9098/74 Heading B3Q [Also in Divisions A5-A6 and D1- D2] A surgical needle 46, Fig. 7, having a drilled hole 47 in its blunt end, is swaged to the reduced diameter end 44 of a surgical suture 12, which may be of silk, nylon, &c., by compressing the blunt end of the needle between an anvil 48 and a hammer 50. Stops 51 and 52, on the hammer and anvil respectively, limit the deformation of the needle, which is received in a depression 49 on the anvil 48. A portion of the finished needlesuture combination is shown in Fig. 14.
Patent GB-435469-A (GB)
Title: An instrument for introducing medicaments into the ducts or canals of human beings and animals
IPC: A61M31/00
Filed: 1934-03-23
Abstract: 435,469. Medical injection appliances. HARRISON, R. P., HARRISON, E. T. G., HARRISON, F. C., and HARRISON, T. S., 10, Green Street, Leicester Square, London. March 23, 1934, No. 9117. [Class 81 (ii)] An appliance for injecting semi-solid medicaments into body cavities comprises an elongated tapered collapsable tube 1, having a preferably bulbous nozzle 3 covered by a rubber, celluloid or like cap 4, and provided with a loop 6, formed of wire, cord or sheet metal, secured beneath the turned-over end of the tube and held by a metal clip 8. In use, the cap is removed ; the tube is then inserted into the cavity and withdrawn by means of the loop whilst being compressed between the fingers.
Patent GB-385595-A (GB)
Title: Improvements in or relating to aerial bombs
IPC: F42C1/14
Filed: 1931-03-25
Abstract: 385,595. Fuzes for aerial bombs. PEVIANI, M., 8, Via Solferino, Lodi, Italy. March 25, 1931, No. 9139. Convention date, April 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 9 (i).] An aerial bomb 1 is burst above ground by means of a detonating cord 5 fired by the impact of a body 2 in advance of the bomb. When the bomb is dropped, a safety fork 8, 11 is pulled out, thereby releasing the body 2 from a tube 7 projecting from the bomb, and also leaving free the two members 3, 4 of a percussion fuze, which on impact come together and fire the cord 5. To ensure that the body 2 shall fall in advance of the bomb, the latter may be retarded by a baffle 6.
Patent GB-772525-A (GB)
Title: Improvements in or relating to circuit arrangements comprising gas and/or vapour filled electric discharge tubes
IPC: H05B41/232
Filed: 1955-03-29
Abstract: 772,525. Supply systems for space discharge tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 29, 1955 [April 1, 1954], No. 9141/55. Class 38 (4). In a circuit arrangement comprising a gas and/or vapour-filled electric discharge tube, e.g. a fluorescent lamp 1 having two filament electrodes 12, 13 and a combined filament heating and arc discharge current supply transformer 6 having two filament heating current supply windings 5-16 and 18-2 for supplying the electrodes, the transformer has a ferromagnetic shunt 7 making it magnetically leaky, the filament heating windings .are positioned one on each side of the shunt 7, and the filament heating circuits each include a separate respective winding 14, 17 of a separate auxiliary transformer 15; the latter windings are magnetically coupled together and the transformer 15 has the property of low impedance when on load but high impedance when on no load whereby should one filament heating circuit be interrupted the impedance of the winding 14 or 17 in the other circuit becomes so high that the electrode in the said other circuit is not brought to an electron-emissive temperature, thereby preventing initiation of the discharge in the lamp when one electrode is unheated. As shown, the transformer 6 is auto-wound, comprising a primary winding 2-8 with a tapping at 11 for connection to A.C. input terminals 9, 10 and a discharge current supplying secondary winding 2-3 and 4-5. The lamp may have on the inner or outer side of its envelope an electrically conductive coating not shown to facilitate ignition. Suitable values and constructions of circuit components are described in the Specification. Specification 771,940 is referred to.
Patent GB-859420-A (GB)
Title: Securing coupling members on shafts
IPC: F16D1/02
Filed: 1958-03-21
Abstract: 859,420. Securing clutch parts on shafts; positive clutches. NAIMER, H. L. March 21. 1958 [April 4, 1957], No. 9223/58. Class 80 (2), In means for securing axially separable positive clutch parts 3 on coaxial polygonal sectioned shafts 2, particularly for use as an insulating coupling in rotary electric switches, the parts 3 are each of elastically deformable material such as polyamide or superpolyamide plastic or hard rubber, with slots 8, one or more of which may be cut through, and have each an external non-circular cross-section of oval or elliptical form fitting a complementary surface in an external ring 6, which is turned, by wrench-flats, relative to the part 3 to compress the latter on to its shaft with a self-locking grip. Bayonet-interlocked projections 11 retain the parts 3, 6 together. The parts 3 have dog teeth 9 and recesses 10 to form a dog clutch which is engaged by closure of a door carrying one of the clutch-halves, which half is connected to a handle for operating switch gear in a housing covered by the door. Additional locking means such as a radial pin may be provided.
Patent GB-1036222-A (GB)
Title: Soldered connections to printed circuit boards
Inventor: WARD HENRY DEWICK
IPC: H05K3/40
Filed: 1964-03-04
Abstract: A soldering tag is soldered to a conductive surface on a printed circuit board with a low melting point solder comprising Lead 27.6%, Bismuth 27.6%, Cadmium 34.5% and Tin 10.3% by weight.
Patent GB-278395-A (GB)
Title: Improved manufacture of finely divided substances from natural emulsions or suspensions
IPC: C08C1/14
Filed: 1926-04-07
Abstract: 278,395. Bataafsche Petroleum Maatschappij, and Moser, F. R. April 7, 1926. Addition to 245,418, [Class 91, Oils &c.]. Emulsions, making.-Natural emulsions, e.g. rubber latex, are partially coagulated by the method described in the parent Specification. Rubber latex containing ammonia is added to a solution of aluminium chloride and the colloidal aluminium hydroxide formed produces a protected dispersion of the latex. Fillers, vulcanizers, accelerators &c. may be mixed with the product.
Patent GB-822181-A (GB)
Title: Substituted coumarins and the preparation thereof
Inventor: FUCIK KAREL
IPC: C07D311/48
Filed: 1956-03-26
Abstract: The invention comprises 1-(chromonyl-3)-1-(4-hydroxycoumarinyl-3)-ethane, propane and butane, and a process for the preparation of 1 - (chromonyl - 3) - 1 - (4 - hydroxycoumarinyl-3) -methanes of the general formula <FORM:0822181/IV (a)/1> wherein R represents an alkyl, aralkyl or furyl group, by reacting 3-(2-salicoyl-1-substituted-ethyl) - 4 - hydroxy - coumarins of the general formula <FORM:0822181/IV (a)/2> wherein R has the above significance, with sodium and a formic acid ester to form the sodium salt of the above formula which may then be treated with acid to form the corresponding compound with a free hydroxy group.  The above process may be modified in that the 3 - (2 - salicoyl - 1 - alkyl - ethyl) - 4 - hydroxy-coumarin reactant is prepared by reacting 4-hydroxy-coumarin with the trimer of an aldehyde of the formula RCHO where R represents an alkyl group in a reaction medium in which the 3,31-alkylidene bis-4-hydroxy-coumarin product is substantially insoluble, e.g. a lower alkanol, (the use of a monomeric aldehyde RCHO for the same purpose is also referred to), and hydrolysing the alkylidene product under alkaline conditions, e.g. with aqueous sodium hydroxide.  In the examples, compounds of the above general formula in which R represents the methyl, ethyl and propyl group and the corresponding free hydroxy compounds are prepared.  Specification 777,754 is referred to.
Patent GB-329751-A (GB)
Title: Improvements in and relating to the cooling of coke
IPC: C10B39/04
Filed: 1929-03-23
Abstract: 329,751. Tyrer, D., and Imperial Chemical Industries, Ltd. March 23, 1929. Cooling discharged materials.- In the cooling of coke with simultaneous production of water gas, the hot coke is charged into a shaft 1 fitted at its lower end with a water-spray 4, the steam produced rising through the hotter zones of the coke column and reacting with the upper layers to form water gas. The cooled coke is removed continuously through the valve 5 and the water gas generated passes off through a conduit 6 fitted with a valve 7; when the coke has cooled down to a temperature at which the water gas reaction no longer takes place, the valve 7 is closed and a valve 8 on a steam offtake pipe 9 opened. Alternatively the water gas and steam may be withdrawn together and the mixture supplied to a water gas generator. Specification 2020/01 is referred to.
Patent GB-836623-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of co-axial cables
Inventor: NAISBITT REGINALD JAMES BARNAR
IPC: B29C48/06
Filed: 1956-03-26
Abstract: 836,623. Moulding electrical conductors. BRITISH INSULATED CALLENDER'S CABLES Ltd. March 25, 1957 [March 26, 1956], No. 9417/56. Class 87(2). Apparatus for moulding disci of insulating material on a con tinuously moving centre wire of a coaxial cable comprises a series of moulds for successive application to the wire and means to move the moulds with and a1 the same rate as the wire, a nozzle to inject the materia through an entry in each moulc as it passes the nozzle, anc between the nozzle and th E  mould, a rotatable shuttei arranged to rotate once during the passage of each mould past the nozzle and having an open ing registering with the nozzle orifice and the mould entry tc permit injection of material into the mould and thereafter to move out of registration with the nozzle orifice so thai the shutter stops the flow of  material from the nozzle. Tc increase the injection and pressure holding period the nozzle orifice may be of elongated cross-section and the direction of rotation of the shutter be such that its opening travels with the moulds along the nozzle orifice. A series of two-part moulds 6 enclosing a conductor (not shown), have entries 11 leading to cavities 5 formedequally in each mould part. The moulds 6 are carried by chains 7, are pressed together by a frame 8 and are moved past a nozzle 3 at the same rate as the conductor. The nozzle 3 has an elongated orifice 13 and is surrounded by a rotatable shutter 17, with an opening 18, mounted on polytetrafluorethylene coated steel shells 31-33. The shutter 17 has gear teeth 20 and is driven, Fi<SP>g</SP>. 3 (not shown), from the drive of the chains 7 to rotate once during the passage of each mould past the nozzle 3. The shape of the orifice 13 and various relative positions of the orifice 13, shutter opening 18 and mould entry 11 are shown in Fig. 6A to D. Escape ports, Fig. 4 (not shown), may be provided in the shutter, at the end of the nozzle, for the release of any material seeping between the end of the nozzle and the shutter. The moulding material may be polyethylene. Nozzle heating channels are provided.
Patent GB-312441-A (GB)
Title: Improvements in the manufacture of nickel iron alloys
IPC: C25C5/02
Filed: 1928-03-29
Abstract: 312,441. General Electric Co., Ltd., and Sanderson, R. W. W. March 29, 1928. Electromagnets.-A core for electromagnets or for telephone loading coils consists of an 80: 20 nickel-iron alloy deposited in a friable form by electrolysis at a high current density, and removed intermittently from the cathode in the form of " trees." The deposit is ground to a fine powder and then heated to 1000‹ C. for 8 hours and allowed to cool slowly. The particles are then coated with an insulating medium and a binder and compressed. The core may then be heated in an inert gas below the fusion temperature to develop its magnetic properties.
Patent GB-116779-A (GB)
Title: Carburetter.
Inventor: SHAKESPEARE WILLIAM
IPC: F02M1/04
Filed: 1917-07-03
Abstract: 116,779. Shakespeare, W., and Schmid, W. July 3, 1917. Controlling handles or levers associated with hand steering-devices.-A lever 78 controlling an air-inlet valve and a priming- valve on a carburettor is mounted in a casing 80 secured to the steering - column by a notched strap, and is connected by a wire or rod 83 to an arm on the air valve. A detent 89 engaging the segment 90 retains the lever in positions for starting and for supplying hot and cold air. A similar control device may be secured to the dashboard.
Patent GB-163871-A (GB)
Title: Improvements in and relating to water heaters
IPC: F24H1/28
Filed: 1920-04-01
Abstract: 163,871. Webb, G. W. April 1, 1920. Internally - fired boilers. - A waterheater comprises separable superimposed sections 1, 2, 3, with flues 4, 5, 6. Water admitted at 10 flows upwards in each section being conveyed by pipes 12, 14 from the top of each section to the bottom of that next below, passing out by the delivery 15.
Patent GB-1137253-A (GB)
Title: Improvements in or relating to rotary meters for measuring the mass flow of fluid therethrough
IPC: G01F1/80
Filed: 1965-03-06
Abstract: 1,137,253. Rotary mass-flow meters. R. MAURER. March 7, 1966 [March 6, 1965], No. 9607/65. Heading F1F. In a rotary fluid mass-flow meter of paddle wheel type as described in Specification 1, 084, 520, the speed paddle 21, Fig. 1, is surrounded by a shroud 42 which is an extension of the shroud 36 surrounding the helical guide vanes 18 carried by a drum 20 fixed to the shaft 17 carrying the torque meter 14. As in the prior Specification, some of the flow may by-pass the helical guide vanes 18 and rejoin the main flow through openings 44 in a conical portion 43 between the shrouds 36, 42 leading to the mixing chamber 33. The by-pass is controlled by a spring-loaded valve sleeve 25 which carries axial guide vanes 28 and is moved in response to fluid-flow. A speed paddle pick-off 34 and the torque meter 14 transmit signals to a computer 35 to determine mass flow through the meter. Fig. 2 (not shown) shows a modified spring-loaded valve sleeve. In a modified construction, axial guide vanes 28b, Fig. 3, carried by a valve sleeve 25b are mounted on a sleeve 45b having two peripheral cam tracks 47 received in cam groves in a worm wheel 48 driven by a worm 51. The worm 51 is mounted on the shaft 52 of a motor 53 is driven by the output 35c of a modified computer 35b. In a further modified construction, Fig. 4 (not shown), the by-pass is omitted, the shroud 42 being of the same dimeter as the shroud surrounding the helical guide vanes and located to be a close fit with the meter body.
Patent GB-178110-A (GB)
Title: Variable friction transmission gearing particularly for power-driven winches
IPC: B66D1/14
Filed: 1922-04-04
Abstract: 178,110. D÷hle, F. April 5, 1921, [Convention date]. Variabbe-speed gearing.- A controlling-handle for a winch or drum is supported on the end of the brake lever and carries cams for actuating clutches to give two forward speeds and a high reverse speed. The handle 21, when moved from its central position towards the right, first engages the cam 23 with the arm 17. This engagement first raises the arm 17 sufficiently to engage the members 7, 18 of a friction clutch and then, when the clutch is engaged so that the arm 17 is fixed moves the handle downwards bodily to raise the weighted brake arm 13 about the brakes 12. This gives a slow forward drive to the drum 11 from the driving-shaft 1 through the train 2, 5, 8, 4, toothed ring 9 and pinion 10. On continuing the movement of the handle to the right, the arm 17 passes the hump on the cam 23 and falls again to relieve the brake and release the clutch in succession. Meanwhile the cam 24 engages the arm 15 and couples the members of a second friction clutch 3, the brake again being operated as in the previous case. This gives a high-speed forward drive by direct driving of the wheel 4 engaging the toothed ring 9. If the handle is moved from mid-position towards the left, the cam 25 engages the arm 16, thereby engaging the clutch members 7. 19, and again manipulating the brake. This gives a reverse drive through the train 2, 5, 10. In the mid-position of the handle both clutches are disconnected and the brake is applied.
Patent GB-639758-A (GB)
Title: Dyestuff intermediates and photographic sensitizing cyanine dyes prepared therefrom
IPC: C09B23/01
Filed: 1948-04-06
Abstract: Dye intermediates of the general formula <FORM:0639758/IV (b)/1> wherein R and R2 are alkyl or aralkyl groups, X is an acid radical, Y is S or Se, Z is the residue of a nitrogenous heterocyclic base, and n is 0 or 1, are prepared by reacting a quaternary salt of a nitrogenous heterocyclic base containing a reactive methyl group in the a -position to the quaternary nitrogen atom with phenyl isothiocyanate or isoselenocyanate in the presence of an organic base and alcohol and reacting the resulting compound with an alkyl or aralkyl ester.  2 - (b  - Anilino : b  - ethylmercaptovinyl) - benzthiazole ethiodide is prepared by adding triethylamine to a methanol p  solution of 2-methylbenzthiazole ethiodide and phenyl isothiocyanate to yield a  - (3 - ethylbenzthiazolylidene) - thioacetanilide and heating this compound with ethyl iodide in a sealed vessel.  a -(6 : 7-Benz-3-ethylbenzthiazolylidene) - thioacetanilide and 2-(b -anilino : b  - methylmercaptovinyl) - 6 : 7 - benzbenzthiazole ethiodide, a  - (3 - ethylbenzthiazolylidene) - selenoacetanilide and 2 - (b  - anilino: b -benzylselenovinyl) - benzthiazole ethiodide, a -(3-ethylbenzselenazolylidene) - thioacetanilide and 2 - (b  - anilino: b  - ethylmercaptovinyl) - benzselenazole ethiodide, and a -(3-ethylbenzoxazolylidene) - thioacetanilide and 2 - (b  - anilino: b -ethylmercaptovinyl) - benzoxazole ethiodide are similarly prepared.ALSO:Cyanine dyes are prepared from intermediates of the general formula <FORM:0639758/IV (c)/1> wherein R and R2 are alkyl or aralkyl groups, X is an acid radical, Y is S or Se, Z is the residue of a nitrogeneous heterocyclic base, and n is 0 or 1.  3 : 31 - Diethyl - 9 - ethylmercaptoselenathiacarbocyanine iodide is prepared by refluxing together 2 - (b  - anilino : b  - ethylmercaptovinyl)-benzthiazole ethiodide, 2-methylbenzselenazole ethiodide, isopropanol, and triethylamine.  3 : 31 - Diethyl - 9 - ethylmercapto - 51 : 61-methylenedioxythiacarbocyanine iodide, and 5-[b -(3 - ethyl - 2 - benzthiazolylidene) - a  - ethylmercaptoethylidene] - 3 - ethylrhodanine are similarly prepared.  5 - [b  - (3 - Ethyl - 2 - benzthiazolylidene) - a  - ethylmercaptoethylidene] - 4 : 5 - dihydro - 3 - ethyl - 2 - (3 - ethyl - 2 - benzthiazolylidenemethyl) - 4-ketothiazolium iodide is prepared by heating together 5 - [b  - (3 - ethyl - 2 - benzthiazolylidene) - a  - ethylmercaptoethylidene) - 3 - ethylrhodanine and dimethyl sulphate, adding pyridine and 2-methylbenzthiazole ethiodide, and refluxing.
Patent GB-1017715-A (GB)
Title: A method of scrubbing out the dust from the exhaust gases evolved in the self-fluxing smelting of lead ores
IPC: C22B13/00
Filed: 1964-03-06
Abstract: 1,017,715. Scrubbing gas containing zinc compounds. METALLGESELLSCHAFT A.G. March 6, 1964 [March 7, 1963], No. 9683/64. Heading B1R. Dust is removed from the exhaust gases evolved in the self-fluxing smelting of lead ores by washing the gas in a first Venturi scrubber with an acid solvent selective for zinc e.g. dilute sulphuric or sulphurous acid and then washing the gas in a second Venturi scrubber with a liquor to neutralize the acidic components of the gas and the first scrubbing liquid and to scrub out the remaining dust; the second washing liquor may be aqueous sodium hydroxide or carbonate. Into rotary furnace I is charged a self-fluxing sinter containing lead, zinc, sulphur, returns and fly ash; the effluent gases containing suspended fly ash (lead, zinc, sulphur and iron) are precooled in 4 by means of water through spray 5 and washed in first Venturi scrubber 6 with dilute H 2 SO 4  wherein the zinc oxide and lead oxide components are predominantly removed. The contaminated washing solution is cycled through regeneration system 7, 8, 10, 11, 12 and reintroduced to scrubber 6, while treated gas passes through mist collecter 7 and hence to second Venturi scrubber 7 wherein it is washed with 10% aqueous NaOH. Spent NaOH is cycled through regeneration system 17, 20, 22, 23 and returned to scrubber 16. Purified gas is withdrawn from the plant through mist collector 17 and fan 18.
Patent GB-280788-A (GB)
Title: Improvements in or relating to otter boards
IPC: A01K73/045
Filed: 1927-04-08
Abstract: 280,788. Fukutani, K. Dec. 17, 1926, [Convention date]. Trawling-gear.-The ground rope 2, which is connected to the towing warp 1 and the brackets 3 on the otter board passes between a fixed roller 5 and a swinging roller 8 on the rear edge of the board.