baber/WOPTO huggingface dataset:
Patent GB-736978-A (GB)
Title: Condensing systems for steam turbine plants
IPC: F01K9/00
Filed: 1952-09-29
Abstract: <PICT:0736978/III/1> <PICT:0736978/III/2> In steam turbine plant comprising a plurality of single-flow turbines, or one or more multiflow turbines, each exhaust stage of expansion is associated with an individual condenser or with an individual unit of a sub-divided single condenser, and the individual condensers or units are connected in series for the passage of the coolant.  The thermal efficiency of the system is thereby increased with respect to those systems wherein each condenser or unit has its own independent supply of coolant.  In Fig. 4, each turbine 6 is supplied with live steam through an inlet 7.  The turbines exhaust the steam through conduits 81, 811 into condensers 91, 911 respectively, which are connected in series, by duct 11, and are supplied with cooling water by pump 12. In Fig. 5, a double-flow turbine 6 is supplied with live steam through a single inlet 7, but exhausts into two condensers 91, 911 connected in series for the flow of cooling water.
Patent GB-996178-A (GB)
Title: Improvements in or relating to brazing alloys
Inventor: CAPE ARTHUR TREGONING
IPC: B23K35/30
Filed: 1961-06-27
Abstract: Butt joints of stainless steel or superalloys are brazed with a Cu-Mn brazing alloy (containing not less than 20% Mn) to which has been added 5-25% Co.  The Cu content of the alloy is preferably 45-75% and it may also contain 5-25% Ni.
Patent GB-224874-A (GB)
Title: Improvements in photo-electric devices
IPC: H01J40/04
Filed: 1924-10-15
Abstract: 224,874. British Thomson-Houston Co., Ltd., (Assignees of Langmuir, I.). Nov. 13, 1923, [Convention date]. Photometric apparatus.-A current is caused to flow to an electrode by reflection, under the influence of light, of electrons from another electrode which is coated with an active material, the electrons being generated independently; the number of electrons which can thus be reflected is proportional to the intensity of the light. In an exhausted container 1 are arranged cylindrical nickel electrodes 2, 3 aligned end to end along the longitudinal axis and slighly separated from one another. Inside the electrode 3 is mounted a small V-shaped filament 4, preferably of thoriated tungsten, supplied with heating-current from a source 7. After thoroughly exhausting the container an alkali metal such as caesium or potassium is introduced. The caesium may be derived from a side tube containing a mixture of caesium chloride and calcium, or magnesium turnings. The alkali metal forms an adsorbed film on the surface of the electrode 3. To prevent shortcircuiting of the leading-in conductors, the envelope adjacent to the stem 8 is preferably maintained at a temperature sufficiently high to prevent condensation of caesium. A battery 11 has its negative terminal connected to the filament, and connections are made to the electrodes 2, 3, the electrode 2 being preferably positive with respect to the electrode 3, although the electrode 2 may be less positive with regard to the filament than is the electrode 3. In the absence of light, an electron current passes from the cathode 4 to the electrode 3. very few electrons passing to the. electrode 2. When light falls on the electrode 3, as indicated by the arrows, electrons are reflected from the adsorbed film of alkali metal, causing some of the electrons to be deflected from the electrode 3 to the electrode 2. The deflected current is proportional to the intensity of the light up to a certain value, after which a saturation value is reached. The current due to electron reflection may be passed through a high resistance 15 and measured, preferably by means of an amplifier 16, thereby enabling the intensity of the light to be measured.
Patent GB-1337847-A (GB)
Title: Tetraazabicyclononane derivatives useful as finishing agents  for textile materials
IPC: C07D487/08
Filed: 1971-04-19
Abstract: 1337847 Forming cellulose acetals BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [12 March 1970] 24493/71 Heading C3A [Also in Division C2] Crease resistance is imparted to cellulosic textile materials by impregnation with tetraazobicyclononan derivatives of formula where each R<SP>1</SP> is independently H or C 1-5  alkyl, R<SP>2</SP> is H or C 1-5  alkyl and R<SP>3</SP> and R<SP>4</SP> are C 1-5  alkyl. Impregnation may be from an aqueous liquor and curing may be effected by heating at temperatures up to 180‹ C. in the presence of acidic or potentially acidic catalysts, if desired after a storage period. The reaction yields acetal bonds between the agent and the cellulose.
Patent GB-615039-A (GB)
Title: An improved boot last for the production of high-legged boots and the boots obtainedthereon
IPC: A43D3/02
Filed: 1946-08-17
Abstract: 615,039. Making high-legged boots. DUNLOP RUBBER CO., Ltd., BRIDGMAN, F., and PHILLIPS, L. Aug. 17, 1946, No. 24537. [Class 17 (i)] Lasts for the production of high-legged boots such as Wellingtons have separable foot and leg portions 2, 1 respectively and the leg portion is in cross-section, a mean of the cross-sections of normal right- and left-footed leg portions, and symmetrical about a median plane extending from front to back, and the contacting faces AB, BC of the foot and leg portions are coterminous, so that the leg portion may be fitted either to a right or left foot portion. The number of leg portions required to be kept in stock may be thus reduced. This number may be further reduced by making the foot portions of a group of sizes to fit a single size leg portion. The foot and leg portions may fit together by a pin 3 and socket 4 and a spring-pressed ball 5 may be urged into a recess in the foot portion to afford an additional interlock.
Patent GB-618472-A (GB)
Title: Improvements in submerged flame burners
IPC: F23C3/00
Filed: 1947-08-19
Abstract: 618,472. Subaqueous burners. ROGERS, F. H. (Swindin, N.). Aug. 19, 1947, No. 24666/46. [Class 75 (i)] A submerged flame burner for operation with liquid fuel comprises a combustion chamber 10, Fig. 2, which may be wholly or partly immersed within a body of liquid to be heated, and which is provided at its upper portion with means for injecting and mixing'liquid fuel and air therein, means for igniting the combustible mixture, and means for heating the air prior to admixture with the fuel, the portion of said combustion chamber dependent in said liquid being surrounded by a shroud 27 the lower end of which is open and the upper end of which is provided with a series of perforations 28. Fuel is passed through an inlet tube 5 and a jet nozzle 6 to be ignited by sparking electrodes 7, whilst air enters the combustion chamber through an inlet tube 8, and also through an inlet tube 24, to be pre-heated by passing through an annular passage 31 between concentric linings 32 and 33 of refractory material, and to pass into the chamber 10 through apertures 34. The annular passage 31 is filled with chequer work. In an alternative construction the air passes from the passage 31 through a series of pipes mounted in the wall 33 the inner ends of which protrude into the combustion chamber, and no chequer work is provided. As a further modification the flame tube 26 may be provided with a plurality of flame outlet orifices instead of the single orifice shown. Specification 618,471 is referred to.
Patent GB-1153402-A (GB)
Title: Improvements in or relating to the Freezing of Food Products.
IPC: F25D3/11
Filed: 1966-06-02
Abstract: 1,153,402. Refrigeraters. AIR PRODUCTS & CHEMICALS Inc. 2 June, 1966 [11 June, 1965], No. 24668/66. Heading F4H. In a tunnel-type food freezer, liquid nitrogen is sprayed from nozzles 58 on to a downstream portion of a conveyer 30, the greater portion of the gaseous nitrogen resulting from contact with the food being recirculated through a path 66b, 68b by a blower 78b and being subsequently recirculated through a path 66a, 68a by a blower 78a. The blower 78a is operated at a higher speed than the blower 78b. The exit end of the tunnel is upwardly directed and a reservoir of cold nitrogen gas is maintained in it. A temperature sensor 39 maintains the desired gas level in the reservoir by operating a flap 76 controlling discharge of nitrogen from the entrance end of the tunnel. Discharged nitrogen collects in a trough and is passed by a blower 52 to atmosphere at a point remote from the tunnel.
Patent GB-705103-A (GB)
Title: Improvements in or relating to stencil sheets
IPC: B41N1/24
Filed: 1951-10-24
Abstract: 705,103. Stencil sheets. DICK CO., A. B. Oct. 24, 1951 [Nov. 1, 1950], No. 24844/51. Class 100 (2). [Also in Group VIII] Stencils, especially for use with duplicating inks containing water, are made from paper having a "tensile ratio " of 10 to 40 per cent, coated with a composition of nitrocellulose &c. or a protein or a synthetic resin &c. plasticized by e.g. 15 to 25 per cent of an aryl alkylated phenol, cresol, zylenol or substituted phenol. Its basis weight may be 6.5 to 8.5 lb.; it may be made from Manila hemp or Kozo fibre.
Patent GB-1159878-A (GB)
Title: Method for the removal and recovery of Bromine Promoter from Crude Phthalic Anhydride
Inventor: EGBERT ROBERT BALDWIN
IPC: C07C51/573
Filed: 1967-05-30
Abstract: 1,159,878. Recovering hydrogen bromide. CHEMICAL PROCESS CORP. 30 May, 1967 [7 June, 1966], No. 24854/67. Heading C1A. [Also in Division C2] HBr is obtained from crude phthalic anhydride made by the vapour phase, catalytic. air oxidation of o-xylene in the presence of a bromine promoter by heating the crude phthalic anhydride to an elevated temperature and keeping it at said elevated temperature until evolution of HBr substantially ceases, to thereby drive off dissolved hydrogen bromide water vapour and low boiling impurities and to decompose heat - decomposable bromine adducts into hydrogen bromide which is driven off as vapour, and thereafter stripping residual HBr from said heat-treated phthalic anhydride by passing it through a fractionating stripper column in countercurrent flow with phthalic anhydride vapour whereby said phthalic anhydride vapour strips said residual HBr from said heat-treated phthalic anhydride. The HBr from the heat treatment step may be recycled for use as a bromine promoter in the catalytic oxidation of o-xylene to phthalic anhydride. Sulphuric acid may be added to the crude phthalic anhydride before subjecting it to heat treatment and the stripping step may be carried out in the presence of inert gas and at elevated pressure. Apparatus for carrying out the process is described with reference to a drawing (not shown).
Patent GB-462664-A (GB)
Title: Manufacture of 2:6-dimethylnaphthalene-8-sulphonic acid
IPC: C07C309/35
Filed: 1935-09-07
Abstract: 2 : 6 - Dimethylnaphthalene-8-sulphonic acid is prepared by treating 2 : 6-dimethylnaphthalene with a sulphonating agent in the presence of an indifferent solvent at a temperature up to about 50 DEG  C. Solvents specified are o-dichlorobenzene, trichlorobenzene, trichloroethylene, chloroform, carbon tetrachloride, tetrachlorethane, benzine and nitrobenzene.  The product, which is a dyestuff intermediate, may be converted into 2 : 6-dimethyl-8-naphthol by melting with caustic alkali, or into the sulphochloride by treating its sodium salt with phosphorus pentachloride; from the sulphochloride, the sulphamide may be obtained by reaction with ammonia.  Examples are given of the sulphonation with chlorosulphonic acid, sulphuric acid monohydrate, concentrated sulphuric acid and fuming sulphuric acid.
Patent GB-472867-A (GB)
Title: Improvements in gas operated automatic guns
IPC: F41A3/32
Filed: 1936-09-15
Abstract: 472,867. Automatic guns. KNORRBREMSE AKT.-GES. Sept. 15, 1936, No. 25167. Convention date. Sept. 19, 1935. [Class 92 (ii)] Relates to gas-operated guns in which the gas piston rod 4 is connected by a link 5 to a tilting breech block 1 and in which an extension 3 of the piston rod carries the firing pin 6 and bears against a return spring 7. According to the invention, the firing pin and the return spring are in alignment with the barrel in the firing position. In the form shown, the rear of the breech block has locking projections 8, 10 engaging recesses in the breech casing 2. The extension 3 extends across the barrel axis and has guides for button-like projections 18, 19 on the firing pin to allow for the tilting movement of the breech block. The breech block is retained in open position by the engagement of a scar 11 with the projection 10.
Patent GB-1309374-A (GB)
Title: Stringer tape for sliding clasp fasteners
IPC: A44B19/34
Filed: 1971-04-19
Abstract: 1309374 Sliding clasp fasteners YOSHIDA KOGYO KK 19 April 1971 [31 March 1970 (2)] 25183/71 Heading E2S A stringer tape of a sliding clasp fastener comprises a tape web and a cord secured to one edge thereof, characterised in that the cord is formed separately from the web by bonding together a plurality of fibres 13 with adhesive to form a stiffened, inextensible, elongated cord, upon which the fastening elements are mounted. The cord may have a non-elastic core 15 e.g. of cord, string or thread.
Patent GB-619235-A (GB)
Title: Curariform drug and method of preparing the same
IPC: A61K36/74
Filed: 1946-08-23
Abstract: A curariform drug is obtained by finely dividing freshly selected plants of the group: Araceae, Minispermaceae, Anonaneae, Loganiaceae, Proteaceae and Rubiaceae, while retaining all the juices in the mass, treating the mass with hot water to extract the solvent material therein, removing undissolved solids from the liquid solution, e.g. by evaporating the liquid to a viscous concentrate and dessicating the concentrate and grinding the resultant to a fine powder.  The alkaloidal content may be removed from the resultant powder and the extract dissolved in water.ALSO:A curariform drug is obtained by finely dividing freshly selected plants of the group: Araceae, Minispermaceae, Anonaneae, Loganiaceae, Proteacea and Rubiaceae while retaining all the juices in the mass, treating the mass with hot water to extract the solvent material therein, removing the undissolved solids from the liquid solution, e.g. by evaporating the liquid to a viscous concentrate and desiccating the concentrate, and grinding the resultant to a fine powder.  The alkaloidal content may be removed from the resultant powder and the extract dissolved in water.  There may be added also to the alkaloidal extract, venom from Paraponera clavata Fabr.  Sodium chloride and trichlorobutanol may be added to the final product as preservatives and the pH value may be adjusted.
Patent GB-845251-A (GB)
Title: Improvements in fuel injection and like pumps
IPC: F02M59/18
Filed: 1958-08-07
Abstract: 845,251. Fuel injection pumps. PARKER, E. V. Aug. 7, 1958, No. 25303/58. Class 102(1). A pump plunger 12 draws liquid through inlet ports 22 and on the pressure stroke the liquid acts on a valve piston 34 to connect the cylinder space to an accumulator space 18. The plunger 12 is formed on its periphery with two separate control grooves 24 each of which communicates with the cylinder space and towards the end of the pressure stroke one groove communicates with an outlet port 26 leading through a valve to the injection line 29 so that fuel is discharged to the injection line by the pump plunger and by the accumulator until the second groove 24 communicates with a spill port 31. The grooves 24 each extend through almost 180 degrees and slant in the same direction so that the output of the pump may be controlled by rotation of the plunger 12 by means of a rack 56. The spring-loading on the valve piston 34 is variable by means of a rod 41.
Patent GB-702178-A (GB)
Title: Improvements in or relating to radio direction finding apparatus
IPC: G01S3/02
Filed: 1951-10-30
Abstract: 702,178. Testing radio direction finding systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 30, 1951 [Oct. 30, 1950], No. 25304/51. Class 40 (7) Radio direction finding apparatus of the kind comprising a plurality of directional aerials connected to a goniometer is provided with switching means for connecting a source of locally generated oscillations to the field coils of the goniometer for test purposes. The symmetrically arranged and mutually perpendicular loop aerials 1, 2 may be connected by cables 3 and 4 to the field coils 5 and 6 of a goniometer which as shown is balanced with respect to earth. The search coil 7 of the goniometer feeds the first stage 9 of the direction finder receiver. For testing, locally generated oscillations, preferably the third harmonic of the fundamental of the second local oscillator 10 of the receiver are fed over switch 12 either to one half of the coils 5 and 6 through condensers 13 and 14 or to the other halves of these coils through condensers 15 and 16. Faulty conditions in the aerial, cables 3 and 4, or coils 5 and 6 will produce a deviation from the symmetrical 45 degrees position indication which should be given.
Patent GB-274318-A (GB)
Title: Improvements in or relating to boiling pans, kettles and the like
IPC: A47J36/36
Filed: 1926-10-12
Abstract: 274,318. Smith, R. W. Oct. 12, 1926. Heating - surfaces, increasing; jackets.- A kettle, boiling pan or the like has a series of outwardlyprojecting inclined or vertical ribs or fins 2, Fig. 2, extending from the top of the side wall to the bottom and if desired partly under the bottom. The vessel is enclosed in in a tubular insulating or other jacket 4, Fig. 3, the fins thus affording a series of flues for the passage of the heating gases.
Patent GB-278528-A (GB)
Title: Improvements in piston rods and the like
IPC: F16J7/00
Filed: 1926-10-13
Abstract: 278,528. Curtis, J. J., and Perkins, H. C. Oct. 13, 1926. Piston - rods.- Piston - rods, pump and valve rods and the like are formed in one piece in solid or tubular form and are sheathed or coated with rustless steel. The solid rod a is sheathed with a tube b of rustless steel which is forced on, or fixed by shrinking, riveting or welding. Alternately a sheet may be wrapped around and the edges passed into grooves in the rod, or a strip may be wound round spirally. When a coating is used, the rod is roughened and molten rustless steel is sprayed on to the surface. According to the Provisional Specification, duralumin may be used in place of rustless steel.
Patent GB-519566-A (GB)
Title: Improvements in or relating to tanks for storage of spirit fuel, oil lubricant, or other liquids, for use with internal combustion engines
IPC: F01P11/02
Filed: 1938-08-31
Abstract: 519,566. Filling fuel &c. tanks. WITNEY, H. W. Aug. 31, 1938, No. 25478. [Class 21] A tank for storing fuel, lubricant or other liquid for use with internal combustion engines such as those used with heavy road vehicles, large stationary engines or aeroplanes, is provided with a filling opening b and an inspection opening c serving to render visible the level of the liquid and to provide an outlet for air during filling, both being opened and closed simultaneously. Openings b, c are provided with metal or other surrounding necks the upper ends of which are turned over or provided with collars h, h<1>, to take metal sealing caps j, j<1> connected by a crossbar n controlled by a spring q. Leather and metal washers k, k<1>, m, m<1> are provided in the caps to which they are secured by bolts o, o' and nuts p, p<1>, the bolts having axial apertures so that the interior of the tank communicates with the atmosphere, The caps, connected by the tiebar n, may also be secured in position by the lever and link mechanism shown in Fig. 4. Specification 305,111, [Class 21], is referred to.
Patent GB-425420-A (GB)
Title: Improvements in swivel bearings
IPC: D06F37/22
Filed: 1933-09-15
Abstract: 425,420. Bearing-supports. COURTNEY, J. R., Gleneagles, Russell Drive, Wollaton, and WARD, H., 57, Cambridge Road, West Bridgford, both in Nottingham. Sept. 15, 1933, No. 25555. [Classes 12 (i) and 12 (ii)] [See also Group XXV] In a swivel bearing for use in laundering and dry-cleaning apparatus comprising a trunnion block 10 which provides a shaft bearing 12, renewable or renewable and adjustable thrust bearing members 17, 19, 20, are provided for trunnions 13 projecting from the block 10 normal to the axis of the shaft and supported in a housing 11. The shaft carries a receptacle and is engageable by alternate driving heads whereby it may be rotated at a slow speed in an inclined position to allow the receptacle to pass through a cleansing fluid and subsequently at a high speed in a vertical position to dry the contents of the receptacle centrifugally. Trunnion - carrying bosses 15 on the housing 11 have liners 16 screwed into thrust plates 17 bolted to the inside of the housing. The outer ends of the liners 16 are slotted for engagement by a screwing tool and each receives a removable thrust washer 19 which co-operates with a thrust nut 20 screwed on to the reduced and threaded end 21 of the trunnion. Wear is taken up by screwing up the nuts 20 which are locked by a split pin 22 passing through the end 21 and engaging one of a number of slots 23 in the nut. The bosses 15 are open at the top, the gaps therein being of sufficient width to pass the trunnions 13 but not their liners, which are assembled axially after the trunnions are in place. Lubricant supplied to the passages in the shaft bearing 12 through a screw-down greaser 27 or a fitting 28 passes through a hole 28a into concentric oil grooves 14 in the block 10 to lubricate the thrust plates 17.
Patent GB-1160484-A (GB)
Title: Improvements in or relating to Stands for Small Appliances such as Domestic Appliances.
Inventor: BACON JAMES LAURENCE
IPC: A45D20/12
Filed: 1967-06-02
Abstract: 1,160,484. Stands. BRITISH DOMESTIC APPLIANCES Ltd. 27 May, 1968 [2 June, 19671, No. 25555/67. Heading A4H. [Also in Division E2] A stand for supporting a domestic hair drier comprises two resilient rods 1, 2 pivoted together at their ends 9 for limited angular movement from parallel disposition, each rod comprising a horizontal portion 3, 5 and an upwardly directed portion 7, 8. The pivot 9 is formed by the arcuate ends (17, 18) being superposed and enclosed in a casing and the angular movement is limited by the abutment of the ends. Rubber spheres 14 on the ends of the upright portions are sprung into depressions in the hair dryer. Rubber cylinders 12, 13 are mounted on the horizontal portions 3, 5 and a rubber grommet 10 with a downward projection 11 is mounted in the pivot 9.
Patent GB-203538-A (GB)
Title: Improvements in friction plate clutches
IPC: F16D69/02
Filed: 1922-09-21
Abstract: 203,538. Hives, E. W., and Rolls- Royce, Ltd. Sept. 21, 1922. Clutches, friction.-In multiple-disc friction clutches, the plates slidable on an outer member may be provided with fabric friction facings, while the or each disc slidable on an inner member is made of springy metal, such as saw steel, and has a thickened periphery divided into segments b, c, - - by radial slits a extending into the thinner central portion, some or all of these segments being bent gently along the chords f out of the plane of the disc. Preferably, alternate segments b, d, - - are bent to one side and the remainder c, e, - - to the other side. The arrangement renders engagement less fierce.
Patent GB-760875-A (GB)
Title: An improved swivel mounting
Inventor: NUTBROWN THOMAS MANBY
IPC: G08B13/12
Filed: 1954-09-03
Abstract: 760,875. Burglar &c. alarms. NUTBROWN, Ltd., T. M. Aug. 16, 1955 [Sept. 3, 1954], No. 25577/54. Class 118 (1). [Also in Group X] A swivelling arm 11, particularly for use as an attachment for a trip wire 17 to set off warning flares, is bent at 18, 19 and 20 to fit over a picket 12 driven into the ground, the curve 20 abutting against a welded-on leg 13 projecting at right angles from the picket 12. The leg 13 may be bent down at 14 also to enter the ground.