baber/WOPTO huggingface dataset:
Patent GB-1114225-A (GB)
Title: Absorption refrigeration systems
IPC: F25B15/06
Filed: 1966-04-26
Abstract: 1,114,225. Refrigerating; steam generators. CARRIER CORPORATION. 26 April, 1966 [28 July, 1965], No. 18280/66. Headings F4A and F4H. An absorption refrigeration system is operable on a heating, as well as a cooling, cycle. Cooling cycle.-Concentrated solution and vapour from the gas-fired generator 10 rise through a lift tube 18 to a separator 20 from which vapour passes to condenser 23 and solution is supplied via line 40, heat-exchanger 41 and line 42 to the absorber 13. Liquid refrigerant from the condenser passes through a tube 24 into one leg 26<SP>1</SP> of a U-tube 26, the other leg of which is connected to the top of the condenser, tube 24 and leg 26<SP>1</SP> being vertically aligned and arranged to open into a separating chamber 25. The refrigerant forms a liquid seal in the U-tube and is supplied from leg 26<SP>1</SP> to the evaporator 12 via line 29, liquid from the sump 34 of the evaporator being withdrawn by pump 36 and circulated in part to nozzles 37a in the evaporator and in part through line 45 to leg 26<SP>1</SP> to ensure maintenance of the liquid seal. Solution from the absorber sump 50 is returned to the generator by line 56, pump 66, heat-exchanger 41, line 69 and part of a line 21 connecting separator 20 to the generator, as well as by a line 71 which opens into line 21. Heating cycle,-The flow of cooling water to the absorber and condenser is cut off so that the condenser pressure increases sufficiently to expel liquid from U -tube 26 and permit vapour to pass therethrough into separator 25 and thence via conduit 31 into the evaporator to heat the fluid in tubes 30. A valve 44 in line 43 is opened to supply condensate from the evaporator to leg 26<SP>1</SP> where the liquid is entrained in the vapour passing therethrough. The entrained liquid is removed in separator 25 by a baffle 54 and returned to the generator via lines 49 and 21. Pumps 36 and 66 are inoperative, the latter permitting free flow therethrough.
Patent GB-1434924-A (GB)
Title: Cementiferous compositions
IPC: C04B24/08
Filed: 1972-04-20
Abstract: 1434924 Cement compositions UNILEVER Ltd 18 April 1973 [20 April 1972] 18338/72 Heading C1H A cementitious composition contains 0À1-5% of a C 8 -C 10  fatty acid salt as such or formed in situ. White Portland cement and lime are binders and other ingredients are sand, SiO 2  flour, limestone, p.f.a. and Al powder if cellularity is required. The sand : lime acid sand : cement mixes are steam cured.
Patent GB-748561-A (GB)
Title: Electrically controlled switching device
Filed: 1953-07-02
Abstract: 748,561. Automatic control systems for gas turbines. BENDIX AVIATION CORPORATION. July 2,1953 [Aug. 2,1952], No. 18381/53. Class 38 (4). [Also in Groups XXVI and XXXVII] In a system for controlling the fuel supply of a gas turbine engine, a two-position electromagnetic switch 36 serves to connect the motor controlling the fuel so that it is controlled either by temperature or by speed. The switch has two windings 18, 16 and closes a contact 38 or 40 according to which winding is energized. If both windings are energized, 18 overpowers 16 and contact 38 is engaged. The windings are energized in parallel by an A.C. source 12 and valves 20, 22 in the two circuits only become conducting when the grid voltages, which are of the same frequency as the source 12, are in phase with it. Whether a grid is in phase or out of phase depends on speed or temperature, the valve 20 being responsive to temperature changes and the valve 22 to speed changes.
Patent GB-687430-A (GB)
Title: Improvements in shaft seals
IPC: F16J15/3252
Filed: 1950-07-24
Abstract: 687,430. Shaft seals. DIFAG FABRIK FœR DICHTUNGEN & METALLDRUCKEREI AKT.- GES. July 24, 1950 [July 23, 1949], No. 18487/50. Class 122(v) A shaft sealing device housed in a recess 4 in a shaft housing 2 comprises an annular casing 5 bent inwardly at one end to form a spigot 6 having clearance around the shaft 1 and supporting one end of a sealing collar 8 of resilient material whose other end is in sealing contact with the shaft, at least a part of the outer wall of the casing being formed as a spherical zone containing between its limiting planes the meridian of the sphere parallel to those planes, the diameter of the sphere being substantially equal to the bore of the recess 2. The inner surface of the spigot 6 is corrugated and one end of the sealing collar is clamped thereto by a ring 9, the other end of the collar being urged into contact with the shaft by a garter spring 10. In a modification part of the outer wall of the casing is cylindrical and the sealing collar is directly clamped between that part and the spigot. In another modification the sealing collar has a radial flange held against the inner end wall of the casing by a spring ring bearing against a radially inward flange, such as 7, at the end of the casing remote from the spigot.
Patent GB-1299930-A (GB)
Title: Process of uniting plastics for elastomeric sheets
Inventor: REITER DONALD PETER
IPC: F16B5/06
Filed: 1970-04-17
Abstract: 1299930 Seaming non-metallic sheet material E I DU PONT DE NEMOURS & CO 17 April 1970 [21 April 1969] 18499/70 Heading B5K Flexible strips 3, 4 of plastics or elastomeric material having marginal interlocking portions 5, 6 are joined by progressively mating the portions 5, 6 with a slide fastener means 1 while simultaneously exuding a liquid bonding medium between those parts of the portions 5, 6 being mated. The portions 5, 6 comprises staggered projections 15 and channels 16 adapted to mate by introduction of the projections of one portion into the channels of the other portion. Each projection 15 and channel 16 may have the configuration of a trapezoid, a dog leg or a mushroom. A preferred configuration is shown in Fig. 4. The portions 5, 6 may be formed as separate strips and subsequently attached by heat sealing, dielectric welding, solvent welding or cement bonding to the strips 3, 4. The means 1 is drawn by a handle 2 and is provided with passages 7, 8 having slots opening in opposite sides of the means 1, projections 9 and channels 10 to guide the portions 5, 6 into engagement and guide projections 11 to assist tracking of the portions 5, 6. The liquid bonding medium is fed from a reservoir (not shown) into the handle 2 and passes through a passage 13 in the means 1 and out through an opening 12 to bond the portions 5, 6. The bonding medium may be an adhesive or a solvent for the material of the strips. If a solvent is used, it may contain in solution material of which the strips are composed. The invention is applicable to joining sheets, in the field, to form liners for ponds, pits, reservoirs and swimming pools. Specified materials for the strips are a chlorosulphonated polyethylene with a bonding medium comprising trichloroethylene containing chlorosulphonated polyethylene; a copolymer of ethylene/proprylene or ethylene/ propylene/nonconjugated diene having only one readily polymerizable double bond and containing 6-22 carbon atoms; butyl rubber; styrene/butadiene rubber; neoprene; polyvinyl chloride; polyvinyl acetate; vinyl chloride/ vinyl acetate copolymer; vinyl chloride/acrylonitrile copolymer; and polyvinyl chloride blended with butadiene/acrylonitrile copolymer. A specified adhesive comprises methyl ethyl ketone, tetrahydrofuran and thermoplastic polyurethane.
Patent GB-1472472-A (GB)
Title: Methods of ultrasonic testing
IPC: G01N29/38
Filed: 1974-04-29
Abstract: 1472472 Ultrasonic flaw detection KRAUTKRAMER GmbH 29 April 1974 [28 April 1973] 18664/74 Heading G1G An ultrasonic pulse-echo detection flaw detection apparatus comprises a plurality of sequentially energized test probes, and, in operation, determines transit time values representative of individual coupling distances of the test probes with respect to a datum at a given time point which values are stored, and recalled during subsequent sequential operation of the test probes. The test probes are initially caused to operate on a calibration block to produce transit time values which represent the distance 52, Fig. 1 from which the known propagation transit time representing the distance 51 is subtracted to yield the value of the coupling distance sn. During a subsequent flaw detection sequence on test piece 21, the coupling distance sn, so measured, is used define a period 2sn, Fig. 3, after the time of occurrence of transmitted pulse 23, during which surface entry echoes will occur before the period 2D during which echoes from any inhomogeneities will be detected. The bottom echo 24 from the test piece rear face, if detected during a further detection zone S4, provides monitoring information that correct coupling has been achieved, zone S4 occurring after a safety margin period S3. Fig. 4 (not shown) shows a block diagram of the apparatus according to the invention, which includes a display screen which provides an image similar to Figs. 1 and 3, and on which are displayed, in operation, the echo signal from each of the sequentially energized test probes 20. The echo signals are also monitored by control circuitry which automatically, at a first command switch setting, measures the n coupling distances, which values are stored, and used during test. The acoustic coupling, detection zone, safety margin and detection, or not, of the back echo, are automatically monitored, and indications are given as to whether the flaw detection measurement which provides an indication of any detected flaws is reliable.
Patent GB-465548-A (GB)
Title: An improved process for obtaining water gas
IPC: C10J3/57
Filed: 1936-07-06
Abstract: 465,548. Water - gas generation. LICHTENBERGER, T., and KAISER, L. July 6, 1936, No. 18670. [Classes 55 (i) and 55 (ii)] In the production of water gas by the reaction of steam and solid, liquid or gaseous fuel in a shaft generator e surrounded by a salt melt bath d, the gases generated, comprising hydrogen and carbon monoxide, unconverted gases such as carbon dioxide, methane and heavy hydrocarbons, together with the fuel residue are then subjected to a steam and heat treatment in the salt melt bath to obtain a final gas mixture of hydrogen and carbon monoxide only which is withdrawn from the bath through a conduit i. Steam is admitted to the shaft and bath through inlets l and k. The melt is fed to the bath from a heating chamber a. The process may be applied to brown coal or peat and if the fuel has a sufficiently high water content, steaming in the shaft is unnecessary. In the case of liquid or gaseous fuel, such as tar or methane respectively, the fluid is forced into the shaft under pressure, together with the steam through inlet l, the sluice g being closed. A temperature of 900‹ C. in the shaft is specified. U.S.A. Specification 1,921,711 is referred to.
Patent GB-498311-A (GB)
Title: A process for the manufacture of resin-like rubber transformation products
IPC: C08C19/10
Filed: 1937-07-05
Abstract: Rubber derivatives are produced by heating rubber with an excess of one or more phenols at temperatures close to the boiling point of the phenols employed in the presence of one or more acids and/or salts having an isomerizing action; the acids employed should be such as do not combine with the phenols employed and the reaction should be carried out in the absence of solvents for the rubber.  The rubber may be vulcanized or not and it may be in the form of latex.  Phenols specified are phenol, cresols, and p-tertiary butyl phenol, and derivatives thereof which still contain free phenolic hydroxyl groups such as p-chloro-phenol and salicylic acid.  Isomerizing acids and salts specified are halogen hydracids such as hydrochloric acid in the gaseous or dissolved state, phosphoric, boric, sulphurous and trichloracetic acids and the chlorides of aluminium, zinc or tin.  A number of methods of purifying the rubber derivatives are described.
Patent GB-1430952-A (GB)
Title: Process for depositing oxide coatings
IPC: B01D53/86
Filed: 1973-04-18
Abstract: 1430952 Purifying I.C. engine exhaust gases CORNING GLASS WORKS 18 April 1973 [1 May 1972] 18741/73 Heading C1A [Also in Division B1] Carbon monoxide and hydrocarbons in I.C. engine exhaust gases are oxidized by contact with a catalyst comprising a noble metal deposited on a hydrated metal oxide supported on a porous support body which have been prepared by impregnating the body with an aqueous ionic solution of a metal which forms an hydrated metal oxide in aqueous alkaline ammonia solutions which is not readily soluble therein and contacting the impregnated body with ammonia or an aqueous alkaline ammonia solution that reacts with the metal to cause the in situ precipitation of only the hydrated metal oxide on the surface of the body. The supports may be aluminosilicate "honeycombs" which may be coated with alumina and/or titania prior to or simultaneously with the hydrated oxide.
Patent GB-769441-A (GB)
Title: Improvements relating to the production of printing blocks by photomechanical processes
IPC: G03F7/32
Filed: 1954-06-25
Abstract: Compounds of hexamethylene diaminoadipate and caprolactam; p,p1-diamino-dicyclohexyl methane, hexamethylene diaminoadipate and caprolactam; and of caprolactam and 4,41-diamino-di-cyclohexyl methane, adipate which melt at approximately 180-200 DEG  C. but can be shaped by pressing, rolling and drawing at 120-140 DEG  C. are described for use in photo-mechanical procedure.
Patent GB-749503-A (GB)
Title: An improved device for moving a flat object in its own plane to position it, especially in an optical projector
IPC: G02B27/02
Filed: 1952-07-24
Abstract: 749,503. Optical - projection apparatus. NORTHERN ENGRAVING & MANUFACTURING CO. July 24, 1952 [May 3, 1952No. 18763/52. Class 97 (1). Positioning apparatus for moving a flat object in perpendicular directions in its own plane comprises a carriage to support the object movable in one direction and means on the carriage engaging both faces of the object and adapted to move the object in a perpendicular direction, the said means being released from engagement with the object, to allow it to be removed, when the carriage reaches the limit of its movement. In the optical projection apparatus shown in Fig. 1 a microphotograph C is held by a pressure member 32 against a transparent panel 22 and is illuminated, for episcopic projection by a lens in a mount 24, by a lamp 12 with reflector 14 and condenser elements 16, 18, 20. The microphotograph is movable in two perpendicular directions, to select part for projection by mechanism in a casing 34. Fig. 2 is an underside view of the mechanism, with the bottom of the casing removed, and Fig. 8 is a transverse section. The microphotograph is held between spring- loaded pressure rollers 122, 124 and rubbercovered rollers 116, 118 on shafts 72, 74 rotatable through gearing 80, 82, 84, 86 by a knob 94. The rollers are slidable on the shafts 72, 74 and the whole roller assembly is slidable by rotating, by a knob 71, a leadscrew 60 with which the roller assembly has driving connection through a spring-loaded ball 182 (Fig. 8) in a bore in a block 102 to which the remainder of the roller assembly is secured. The rollers 122, 124 are carried on plates 126, 128 carried on pivots 130, 132 round which are springs which urge the plates in the direction to engage the rollers 122, 124 with the rollers 116, 118. Abutments 196, 198 on the pivoted plates engage projections 192, 194 on a bridge member 186 pivoted at 188 to the block 102 to urge one end downwards to engage the ball 182 and provide the necessary pressure thereon. At the end of the travel of the roller assembly if rotation of the leadscrew is continued, the ball is driven out of the leadscrew to pivot the member 186 and lift the rollers 122 and 124. The pivoting of the member 186 causes a downward movement of the portion 210 and at the end of the movement of the roller assembly to the right, as shown in Figs. 1 and 2, this portion engages under the hooked end 208 of the spring blade 206 on which the pressure member 32 is carried. The microphotograph is thus freed for removal and replacement.
Patent GB-840290-A (GB)
Title: Improvements in or relating to guard devices for pressure gauges and the like
IPC: G01L7/10
Filed: 1958-06-12
Abstract: 840,290. Guard devices for pressure gauges. MANNING, MAXWELL & MOORE Inc. June 12, 1958 [June 21, 1957], No. 18805/58. Class 106 (2). [Also in Group XXVIII] A guard device 11 for installation between a source of fluid at high temperature and pressure and an instrument 10 which responds to pressure variations comprises a diaphragm capsule 34 made from two thin corrugated resilient metal discs 37, 42 and a rigid bushing 17 having a central bore through which extends a capillary tube 12, the inner end of the bushing 17 being welded to the margin of a central aperture in the disc 37, the assembly being located within a chamber C in a housing 14, 15, all the joints between constituent elements of the guard device being welds. The discs 37, 42 are joined together by an air-tight weld 43 round the outer rim. A filler member 39 with a central bore 41 is provided to reduce the effective size of a chamber 32 formed in the end of the bushing 17. The method of making the guard device comprises the steps of inserting the capillary tube 12 in bushing 17, securing disc 37 to it, inserting filler member 39, assembling disc 42 to disc 37, corrugating the discs 37 and 42, placing a protecting tube T over the capillary tube 12, inserting bushing 17 into part 14 of the housing and assembling part 15 to part 14. The parts are welded together as they are assembled at 35, 36, 38, 43, 50, 18, 16 and the assembly is tested for air tightness after each weld.
Patent GB-627166-A (GB)
Title: Centrifugal machines
IPC: B04B9/12
Filed: 1947-07-15
Abstract: 627,166. Centrifugal-machines. CLARK, G. M. (Western States Machine Co.). July 15, 1947, No. 18850. [Class 23] [Also in Group XXVI] An over-driven centrifugal machine without under bearing has the basket supported by a ball and socket bearing assembly which surrounds a flexible joint in the drive shaft. The driving motor is mounted on a support 3 and has a shaft extension 55 connected to the flexible joint which comprises teeth on a part 52 attached to the extension and in engagement with teeth on a part 51 connected to a shaft 30 carrying the basket. The shaft 30 rotates in a support sleeve 20 depending from the ball 22 and has a bearing barrel 40 carrying a brake drum 48. A self aligning bearing 36 and thrust bearings 37 are disposed between the support sleeve and the bearing barrel. A resilient ring 60 interposed between the ball and socket members 22, 10 permits movement of the shaft 30 and sleeve about a centre C.P. A lubricating chamber B in the ball is connected with another lubricating chamber C in the barrel by passages 62, 63. Passages 65, 67 permit overflow of oil from these chambers and the chamber C is closed by a grease seal 35.
Patent GB-596136-A (GB)
Title: Improvements in or relating to hot water towel airers and the like
IPC: F16L13/16
Filed: 1945-07-25
Abstract: 596,136. Jointing by stamping ; assembling force fits. YOUNGMAN, Ltd., W. C., and PRICE, F. S. July 25; 1945; No. 19039. [Class 83 (iv)] [Also in Group XXVIII] A method of making a tubular structure consists of providing the elbows, tees and like parts with spigot members 3 having annular grooves 5 at their bases, and the tubular parts with socket members 1, each having mating surfaces 4, 5, formed with a mirror finish, partly effecting the joint by hand, and completing it by hydraulic or like pressure so that the end 6 of each socket is forced into the corresponding groove 5 in the spigot.
Patent GB-1214100-A (GB)
Title: Quickly removable musical drum head
Inventor: PRICE WILLIAM
IPC: G10D13/02
Filed: 1969-04-14
Abstract: 1,214,100. Musical drums. W. PRICE. 14 April, 1969 [26 April, 1968], No. 19051/69. Heading G5J. [Also in Division E2] In a musical drum, the skin 3 is tensioned by the rim 2 releasably secured via a plurality of apertures 2a by toggle clamps 4 to brackets 5 on the shell 1. Brackets 5 have nail-heads 6 received in recesses 12 of yokes 10 of clamps 4. Yokes 10 are hinged at 11 to operating levers 7 hinged at 9 to elements 8a having threaded bores receiving bolts 8b passing through apertures 2a so that the tension in skin 3 may be adjusted. Six or eight apertures 2a may be provided. In further embodiments (Figs. 6-11, not shown), the lower ends of yokes 10 may be hook-shaped (Figs. 6, 7) and are received in vertical slots between brackets 5 and shell 1. Yokes (10<SP>1</SP>) (Figs. 8, 9) may be bolted on shell 1, and the brackets are dispensed with. Apertures 2a open into the outer edge of rim 2 so that bolts 8b may be slid out. Brackets (5<SP>1</SP>) (Figs. 10, 11) may be hook-shaped to receive the inner ends of levers 7, and the yokes are dispensed with.
Patent GB-120922-A (GB)
Title: Improvements in or relating to Suspension Devices more particularly applicable to Automobile Vehicles.
Inventor: DELQUE MARIE AMELIE
IPC: B60G11/113
Filed: 1918-11-20
Abstract: 120,922. DelquÚ (nÚe Habans). M. A., and Motte, C. M. Nov. 20, 1917, [Conven. tion date]. Laminar springs.-A cantilever spring has one end attached to the under frame by a link, the centre being attached pivotally in a bracket. The free end of the spring is attached by two leaves of the spring a<1>, a<2>, to two bolts f symmetrically situated about the axle e. The points may be horizontally or vertically arranged as regards the axle.
Patent GB-795420-A (GB)
Title: Improvements in and relating to tobacco smoke filters
IPC: A24F13/06
Filed: 1956-06-20
Abstract: 795,420. Tobacco-smoke filters. BARNETT, J. M. June 20, 1956, No. 19085/56. Class 130. Silica gel 7 and activated carbon 8 are used in series. They may be charged directly into a cigar or cigarette holder or pipe stem or into a replaceable cartridge 1 therein.
Patent GB-1468408-A (GB)
Title: Process and apparatus for enriching hydrogen with deuterium
IPC: C01B4/00
Filed: 1974-05-01
Abstract: 1468408 Enriching hydrogen with deuterium SULZER BROS Ltd 1 May 1974 [24 May 1973] 19125/74 Heading C1A A process for enriching hydrogen with deuterium comprises contacting hydrogen with heated fresh water having a natural deuterium content in the presence of a first isotope exchange catalyst, e.g. NaOH or KOH, heating the resulting hydrogen/steam mixture to superheat the steam and then contacting the mixture thus formed with a second isotopic exchange catalyst, e.g. Pt or Ni. In the preferred embodiment, purified and de-gassed water is passed to a countercurrent isotope exchange column 5 via heat exchanger 2. D-depleted water from column 5 is withdrawn via the heat exchanger 2. D-depleted dry hydrogen from a heavy water recovery plant is passed to the column 5 via heat exchangers 9 and 10. Water separated from the H 2 -steam mixture flowing through the heat exchangers 9, 10 in an opposite direction is added to the hydrogen via conduits 36, 38. The heated, wetted H 2  contacts the water in the column 5. The D-enriched H 2  and water vapour from column 5 are passed to a heat exchanger 11 where the steam is super-heated. The mixture is then further heated in a heater 12 and passed to a reactor which operates at a temperature between 400‹ and 600‹ C. and a pressure of 100 to 400 atmospheres. The mixture leaving the reactor is cooled by passage through heat exchangers 11, 10 and 9 respectively. Steam is condensed out 14, 16 and recycled. The enriched hydrogen is withdrawn via conduit 39 and fed to a heavy water recovery plant.