baber/WOPTO huggingface dataset:
Patent GB-1029363-A (GB)
Title: Treatment of chromium surfaces
IPC: F16C13/00
Filed: 1964-09-02
Abstract: A process for forming on a substrate a surface having superior release properties and abrasion resistance comprises the steps of forming on said substrate a textured chromium surface having a plurality of substantially uniformly distributed depressions and peaks: applying to said textured surface a thin uniform deposit of fluorocarbon polymer; heating said textured surface to a temperature above the fusion temperature of said fluorocarbon polymer thereby forming a continuous film of fluorocarbon polymer on said textured surface; and removing said film from said peaks; thereby forming a release surface containing discrete islands of chromium substantially uniformly distributed throughout a continuous film of fluorocarbon polymer said chromium constituting 0.01 to 30% of the area of said surface.  The substrate may be a metal roller.  The substrate may be formed or provided with a textured surface and then chromiumplated or it may be chromium-plated and then treated e.g. by grit-blasting to produce the textured surface.  The polymer may be applied as a fine powder or a liquid dispersion by spraying, which may be electrostatic, by hot platens under pressure or by the fluidised bed process: the surface may first be cleaned, degreased and de-gassed. After application of the polymer, the surface may be ground e.g. by means of an abrasive belt to expose the chromium peaks.
Patent GB-943159-A (GB)
Title: Improvements in coating spheroidal graphite cast iron
IPC: C23D3/00
Filed: 1961-10-11
Abstract: A process of coating cast iron with vitreous enamel or glass comprises adding a nucleating agent to the molten metal and casting, cooling the casting to a temperature in the range 730-790  DEG C., further cooling the casting to a temperature in the range 660-690 DEG C. at a rate sufficiently slow to convert all the carbon to unreactive carbon and provide a homogenous dispersion of massive, unreacted carbon nodules in the iron matrix, cooling to ambient temperature and fusing a glass or vitreous enamel coating on to the iron.  The casting may be cooled to the range 660-690  DEG C. at the rate of 0.5  DEG C. per minute and the glass or vitreous enamel may be fired at 815  DEG C.
Patent GB-1188613-A (GB)
Title: Spectrophotometry
Inventor: GARRASI GIUSEPPE
IPC: G01N21/03
Filed: 1968-07-31
Abstract: 1,188,613. Semi-conductor devices &c. MONTECATINI EDISON S.p.A. 31 July, 1968 [3 Aug., 1967], No. 36468/68. Heading H1K. [Also in Division G2] A cell for use in spectrophotometry comprises two optically transparent sheets 1<SP>1</SP>, 1, and a spacer plate 2 having an inner cavity for a sample to be examined, the spacer plate being subdivided into at least two parts formed of different metals or metal alloys so as to act as a thermocouple linked by cables 3 to a measuring instrument. As shown, the sheets 1, 1<SP>1</SP>, spacer 2 and gaskets 4, 4<SP>1</SP> are clamped between support plates 5, 5<SP>1</SP> by screws 6. The spacer may have more than one thermocouple.
Patent GB-344025-A (GB)
Title: An improved composition for use with concrete, cement and the like, and a method for its production
IPC: C04B28/02
Filed: 1929-11-28
Abstract: A composition to be added to cement concrete or mortar to render it waterproof and fireproof is made from caustic soda, oleic acid, sand, and potash alum.  The caustic soda is first dissolved in water and heated, then the oleic acid is added, and finally the sand and potash alum.  Proportions are given in the Specification.  The soda and oleic acid react to form oleate of soda, and this reacts with the potash alum to produce aluminium oleate.  To waterproof a cement mortar, two pounds of the composition are added to each cubic foot of a mortar comprising one part of cement and three parts of pit sand.
Patent GB-1379067-A (GB)
Title: Process for producing weighting agents for drilling fluids
Inventor: SENFF H
IPC: C22B1/14
Filed: 1972-08-04
Abstract: 1379067 Iron oxide calcine METALLGESELLSCHAFT AG 4 Aug 1972 [10 Aug 1971 21 June 1972 22 June 1972 23 June 1972] 36590/72 Heading C1A [Also in Division E1] A sulphur- and iron-containing material is roasted to a total sulphur content of below 2% to produce an iron oxide calcine which is washed, dispersed in water and if necessary, treated with a neutralizing agent to give a non-acidic material which is dried, wherein at some point after the roasting step the iron oxide calcine is sized to a maximum size of 75Á and not more than 50% by wt. is less than 10Á. Preferably the oxidic calcine, whilst still at the roasting temp, is quenched in water to below 100 C., after which the calcine is leached with water to remove acidic components. followed by washing. The washed calcine, which may also contain Pb, Zn, Cu, Ni, Al, or Si in oxidic form in amounts of 0À05 to 10% by wt., may be treated with a water-soluble barium compound whereby soluble sulphates are converted to the insoluble barium sulphate.
Patent GB-794931-A (GB)
Title: A header assembly for electronic tubes
IPC: H01J9/32
Filed: 1955-12-21
Abstract: 794,931. Leading-in conductors for electronic tubes. CORNING GLASS WORKS. Dec. 21, 1955 [Dec. 28, 19M], No. 36696/55. Class 39(2) [Also in Groups XXXVI and XL(a)] The base of an electric discharge tube comprises an apertured disc of vitreous material and one or more tubular lead-in conductors, preferably arranged in a circular row around the disc centre; having outwardly flanged open ends sealed in the body portion of the disc immediately surrounding the aperture. In assembly use is made of a refractory support 12, Fig. 3, having a recess 26 in which the disc 14 is seated. The lead-in conductors 31 are then inserted through the disc apertures 16 so that their flanges 32 rest upon the enlarged aperture heads 17. A further, somewhat thinner, disc 41 is 'then placed over the disc 14 and the assemblies fitted to produce a header as shown in Fig. 4.
Patent GB-412604-A (GB)
Title: Improvements in connection with vehicle lighting for parking
IPC: B60Q1/48
Filed: 1932-12-29
Abstract: 412,604. Switching systems for motorvehicle lamps. EVANS, C. J., and EVANS, S. C., 99, London Road, North Lowestoft. Dec. 29, 1932, No. 36733. [Class 38 (iv).] A motor vehicle having a reverse lighting circuit consisting of tail lamps for the front and headlamps for the back, has a manual switching device so arranged that the vehicle cannot be driven with its lighting reversed. In the form shown in Fig. 17, 165 and 166 represent the forward and reverse lighting circuits and 163 a current source ; the reverse lights 166 can be on if the switch is thrown to the right only if the brake is applied, but release of the brake actuates the plunger switch 115 to open contacts 100 and close contacts 112 thereby restoring the normal lighting. In modified forms, a rotary switch or combined switch and fuel cock only is used which cuts off the ignition or the fuel supply when it is actuated to illuminate the reverse lights. The disc 59 on the movable member of the rotary switch 77 carries a contact capable of bridging either fixed contacts 79 and 80 or contacts 79 and 78, Fig. 5, and may have additional contacts to control other circuits.
Patent GB-982909-A (GB)
Title: The manufacture of substituted 2-amino-benzophenones
IPC: C07D203/12
Filed: 1963-09-18
Abstract: The invention comprises compounds of formula <FORM:0982909/C2/1> wherein [Cl or Br] is an optional substituent and R1 is a 21- or 41-substituent and is C1- 7-alkylthio, cyano or di-C1- 7-alkylamino in which the alkyl groups are joined directly or through O or N to form a six-membered ring.  Such compounds and, in general, 2-aminobenzophenones which bear in the 21- or 41-position a nitro, cyano, di-C1- 7-alkylamino (as defined above), C1- 7-alkoxy or C1- 7-alkylthio group are prepared by reacting a suitably substituted 2-fluoro- or 4-fluorobenzophenone with ammonia or with the appropriate dialkylamine, aralkylamine, alkali-metal alkoxide or alkali- or heavy-metal mercaptide. In the examples: (1) 2-amino-21-fluorobenzophenone (catalytic hydrogenation of 2-amino-5-chloro - 21 - fluorobenzophenone) with sodium methoxide gave 2 - amino - 21 - methoxybenzophenone; (2) (a) 2-tosylamino-21-fluorobenzophenone (tosylation of 2 - amino - 21 - fluorobenzophenone) with sodium methoxide gave 2 - tosylamino - 21 - methoxybenzophenone; (b) 2 - tosylamino - 5 - bromo - 21 - fluorobenzophenone (tosylation of 2 - amino - 5 - bromo - 21-fluorobenzophenone with sodium methoxide gave 2 - tosylamino - 5 - bromo - 21 - methoxybenzophenone; (c) 2-tosylamino-5-chloro-41-fluorobenzophenone (tosylation of 2-amino-5-chloro-41-fluorobenzophenone, obtained by heating at 200-210 DEG  C. p-fluorobenzoyl chloride and p-chloroaniline with ZnCl2) with sodium methoxide gave 2 - tosylamino - 5 - chloro - 41 - methoxybenzophenone; (3) 2 - tosylamino - 5 - chloro (or bromo) - 21 - fluorobenzophenone (tosylation of amine) with sodium methoxide and dimethyl sulphate gave 2 - (N - methyl - N - tosylamino) - 5 - chloro (or bromo) - 21 - methoxybenzophenone; (4)-(7) 2 - amino - 5 - chloro - 21 - fluorobenzophenone with sodium methoxide gave 2-amino-5-chloro-21-methoxybenzophenone, or with sodium methylmercaptide, dimethylamine or piperidine, the 21-methylmercapto, dimethylamino or piperidino analogues respectively; (8) 2-cyano-21-fluorobenzophenone (2 - amino - 21 - fluorobenzophenone diazotized and reacted with Na and Cu cyanides) with benzylamine\sHgave 2-benzylamino-21 - cyanobenzophenone which with Pd/H2 afforded 2 - amino - 21 - cyanobenzophenon; (9) 2 - nitro - 21 - fluorobenzophenone with ammonia gave 2-nitro-21-aminobenzophenone.
Patent GB-1392941-A (GB)
Title: Foundry moudling a-parauts
IPC: B22C5/12
Filed: 1971-08-05
Abstract: 1392941 Foundry sand preparing apparatus BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 1 Aug 1972 [5 Aug 1971] 36838/71 Heading B3F [Also in Divisions B1 and F2] A foundry moulding mixture preparing apparatus comprises two premixers 1, 2 for mixing sand with resin and sand with hardening catalyst respectively, shoots 5, 6 for supplying two premixes from the premixer 1, 2 to a final mixer 7, the outlets from at least one of the mixers comprising a resilient member defining a passage and means operative to deform the resilient member. As shown at the left-hand side of Fig. 1 premixes are allowed to fall from premixes 1, 2 via rubber sleeves 5, 6, which are vibrated by a rod 16, 17, 18, into mouths 8, 9 of the final mixer 7. The sleeves 5, 6 are then closed by compressing members 10 11 (as shown on the right-hand side of Fig. 1), pushing the sleeves 5, 6 against plates 12, 13, and mouths 8, 9 are closed off by shutters 14, 15. The premixes, are mixed together in final mixer 7 and blown out through a port 20 to a delivery manifold (not shown) by air entering the mixer 7 from a pipe 22. A valve comprising a flexible member in a pipe, the flexible member being closable by a compressing member 21, is located in the outlet pipe of the final mixer 7.
Patent GB-364783-A (GB)
Title: Improvements in and connected with burners for furnaces
IPC: F23D14/00
Filed: 1930-12-06
Abstract: 364,783. Gas and pulverulent fuel furnaces. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.- (Fuller Lehigh Co.; Fullerton, Pennsylvania, U.S.A.) Dec. 6, 1930, No. 36852. [Class 51 (i).] A furnace having spaced tubes 10 connected to the water-circulation system in one of its walls is fitted with a burner adapted.to project between the tubes a plurality of sheets of fuel surrounded by secondary air into the combustion space. A pipe 15 supplying gas or pulverized fuel suspended in air is connected to the burner body 14 which is narrowed in one direction and widened in a direction at right-angles so that the fuel enters the burner mouth 16 in a wide stream. The mouth 16 is formed with a number of hollow transverse members 24 separating discharge openings 25 between and parallel to the tubes 10. Secondary air from a casing 21 surrounding the burner enters the hollow members 24 through openings 28 and is discharged in sheets surrounding and impinging upon the sheets of fuel. Cross members 26 between the enlarged ends of the members 24 have depressions 27 fitting against the tubes 10. The tubes 10 are faced with tiles or Bailey blocks 12 held in place by clamps 13. One end of the burner is secured directly to brackets 18 on the tubes 10 and the other by a rod 23 fitted with a turn-buckle to a bracket 23<1> on the tubes 10.
Patent GB-361642-A (GB)
Title: Improvements in hand tools for bending metal rods, bars and the like
IPC: B21D7/02
Filed: 1930-12-06
Abstract: 361,642. Angular bending. SPENCER, D., 16, Grafton Street, Cambridge. Dec. 6, 1930, No. 36861. [Class 83 (iv).] A three-point bender suitable for adjusting connecting-rods of internal-combustion-engines without dismounting comprises an inverted channel piece a, carrying a centrally disposed screw, cam or like adjustable member d, and having oppositely directed lateral feet c forming a Z in plan view. The bearing end of the screw d is shown provided with a steel ball h to take the thrust.
Patent GB-431833-A (GB)
Title: Process for the production of pregnanolones
IPC: C07J5/00
Filed: 1934-12-24
Abstract: Pregnanolone is prepared from pregnandiol by: (i) Esterification of pregnandiol to the mono-ester, oxidation to pregnanolone monoester, and saponification; (ii) Oxidation of pregnandiol to pregnandione, followed by partial reduction to pregnanolone; (iii) Esterification of pregnandiol to the di-ester, partial saponification to the mono-ester, oxidation to pregnanolone mono-ester and saponification to pregnanolone.  The agent used for esterification is acetic anhydride, for oxidation chromic acid, and for reduction hydrogen in presence of a platinum catalyst.  Reduction may also be accomplished by treatment in the presence of catalysts with compounds which are capable of yielding hydrogen and at the same time forming their corresponding oxidation products such as tetra-hydronaphthalene and cyclohexanol.  An example is given of each method referred to above.ALSO:Pregnanolone is prepared from pregnandiol by: (i) Esterification of pregnandiol to the mono-ester, oxidation to pregnanolone mono-ester, and saponification; (ii) Oxidation of pregnandiol to pregnandione, followed by partial reduction to pregnanolone; (iii) Esterification of pregnandiol to the di-ester, partial saponification to the mono-ester, oxidation to pregnanolone mono-ester and saponification to pregnanolone.  The agent used for esterification is acetic anhydride, for oxidation chromic acid, and for reduction hydrogen in presence of a platinum catalyst.  Reduction may also be accomplished by treatment in the presence of catalysts with compounds which are capable of yielding hydrogen and at the same time forming their corresponding oxidation products such as tetra-hydronaphthalene and cyclohexanol.  An example is given of each method referred to above.
Patent GB-1418157-A (GB)
Title: Resilient members
IPC: F16F9/30
Filed: 1973-08-03
Abstract: 1418157 Springs using an elastomer under hydrostatic compression SOC D'EXPLOITATION DES RESSORTS AUTO-AMORTISSEURS JARRET 3 Aug 1973 [23 Aug 1972] 37069/73 Heading F2S A spring comprises a plunger 3 moving in a chamber 4 containing elastomer under a certain pressure, the plunger 3 itself defining a second chamber 3a smaller than the first and containing elastomer under a pressure higher than that in the first, the second chamber 3a having a plunger 5. On compression, the plunger 5 moves in the chamber 3a until the pressure builds up, when the plunger 3 begins to move in the chamber 4. This construction makes the minimum force necessary for telescopic movement less variable with temperature than it would otherwise be.
Patent GB-326541-A (GB)
Title: Improvements in carburetters
IPC: F02M17/14
Filed: 1928-12-15
Abstract: 326,541. James, F. A. Dec. 15, 1928. Spray carburettors.-In carburettors wherein the fuel discharged from the nozzle is decreased as the suction increases, the valve controlling the nozzle orifices is actuated by a plate against which the air stream impinges. The minimum opening of the orifice is raised by opening the main throttle beyond normal working position. The nozzle, which communicates with the float chamber through a conduit B, comprises a part a into which is screwed a part d containing a rotatable plug f for controlling the fuel orifice in the form of a long narrow slit e. The plug is connected to a right-angled plate h, k, Fig. 3, which has, formed integrally with it, a plate m. The minimum opening of the slit may be determined by a set-screw n, but before this limit is reached, the opening may be determined by a. cam p mounted on an axle q adapted to be actuated by a rod on. the throttle valve spindle, the cam forming a stop for the part k. The fuel is delivered through an orifice v, which may be in the form of a slit, and air to mix with this fuel may enter by a tube J<1> which fills to the level j<1>-j<1> to form a reserve for starting. According to the Provisional Specification, a hinged plate placed across the intake is connected to a pin on a disc integral with a conical valve in a. nozzle with a corresponding valve seat. The plate is spring-loaded and moved inwardly by suction.
Patent GB-868606-A (GB)
Title: Apparatus for controlling or assisting respiration
Inventor: BLACK GEOFFREY DONALD
IPC: A61M16/00
Filed: 1958-11-19
Abstract: 868,606. Respiratory appliances. BRITISH OXYGEN CO. Ltd. Nov. 18, 1959 [Nov. 19, 1958], No. 37184/58. Class 81 (2). A respiratory device particularly for administering anaesthetic gases comprises an expansible reservoir adapted to communicate with the lungs of a patient, a rigid airtight chamber surrounding the reservoir, means for intermittently supplying gas under pressure to the chamber alternately operable with valve means for releasing gas therefrom and loading means associated with the reservoir for causing it to expand when gas is released from the chamber whereby a negative pressure is created in the reservoir. As shown, Fig. 1, a bellows 1 with leads 2 and 3 respectively to and from a patient's face mask &c. is supplied with oxygen or anaesthetic gas by a pipe 7 and is located in a rigid airtight chamber 9, its free end carrying a weight 8. In use, gas under pressure is introduced into the chamber 9 and compresses, the bellows 1 thus forcing a predetermined volume of oxygen past a non-return valve 4 to the lungs until the desired pressure in the lungs has been reached when the pressurizing gas is allowed to escape to atmosphere. The weight 8 moves by gravity to expand the bellows 1 thus creating a negative pressure in the lungs which may be varied by means of an adjustable spring--loaded valve 6 in the respiratory circuit. In another embodiment (not shown), the adjustable spring- loaded valve is located in the pressurizing gas circuit.
Patent GB-1114698-A (GB)
Title: Sliding surface or rubbing contact material
IPC: C22C32/00
Filed: 1965-08-31
Abstract: 1,114,698. Bearings; lubricating; impregnating permeable materials; friction clutches; brake linings; seals. GLYCO - METALL - WERKE DAELEN & LOOS G.m.b.H. 31 Aug., 1965 [2 Oct., 1964], No. 37187/65. Headings F2A, F2B, F2C and F2E. A sliding surface or rubbing contact material comprises a metallic base material having at least one surface thereof coated by an oxide of the base material and having pores or cavities which contain a filling mass comprising an oxide of a metal. The unoxidized base material has a greater affinity for oxygen than the unoxidized metal of the filling mass so that if the oxide coating on the surface of the base material is broken, the oxide of the filling mass supplies sufficient oxygen to the surface of the base material to re-generate the oxide coating thereon. The base material may be aluminium, magnesium, titanium and alloys thereof and may be a porous sintered body. The filling mass may consist of lead oxide, silicon dioxide and boron oxide; may be 5 to 50% of the total material; may become semi-liquid at a temperature below the melting temperature of the base material; may serve as a lubricant; and may also contain one or more metals such as tin or lead. In an embodiment, a sintered body had each of its metal grains 1, Fig. 1, coated with an oxide layer 2. The body was immersed into a molten filling material to a depth indicated by the reference numeral 3, thus filling pores 4 but not filling pores 6. When the filling material cooled, additional pores 5 were formed which are suitable for receiving lubricant therein. In another embodiment, the body was totally immersed and all the pores received the filling material. In a further example, a plate 11, Fig. 3, of aluminium for example had an active surface 12 provided with indentations therein. The rest of the surface 12 was then etched to produce pores 13 and oxidized to produce an oxide layer 16. The indentations and the pores 13 were then filled with liquid filling material which, when cooled, produced pores 15 which are suitable for receiving lubricant therein.
Patent GB-905180-A (GB)
Title: Improvements in or relating to feeder bibs for babies
IPC: A41B13/10
Filed: 1960-10-28
Abstract: 905,180. Babies' bibs. HEATON, W. S., and HEATON, H. June 29, 1961 [Oct. 28, 1960], No. 37188/60. Class 141. A baby's feeder bib comprises two outer sheets of synthetic plastic material and an intermediate layer of synthetic foam plastic, one or both of the outer sheets being secured to the intermediate layer by quilting 6 over a substantial portion of the area of the bib. The quilting may be effected by sewing or high-frequency welding. A pocket is provided on the front surface below the quilted area. The bib is supported by ties or by a harness comprising shoulder straps and horizontal side straps 8, 9, respectively, of synthetic plastic material connected by an elastic back-strap 10.
Patent GB-373808-A (GB)
Abstract: 373,808. Separating solid materials. HUMBOLDT-DEUTZMOTOREN AKT.- GES., 161, Kalker Haupstrasse, Kalk, Cologne, Germany. June 22, 1931, No. 18099. Convention date, June 20, 1930. [Classes 82 (ii) and 117.] In the separation of coal and shale by apparatus comprising a vibrating air-pervious table over which the materials are caused to pass while being subjected to a current of air passing up through the table, the coal, or only the small sized portion thereof, is subjected to the preliminary drying action of hot air or gases. One arrangement of plant is shown in the Figure, and comprises two cleaning tables e, i a grading screen b, and a rotary tubular drier g through which pass the hot gases from a furnace h. The small material passing through the screen may be collected in a hopper d from which it is fed to the drier by the device f. After leaving the drier it is conducted by the conveyer k to the table i preferably by way of apparatus l for removing the dust, and a hopper o. The oversize material from the screen may be passed directly to the hopper c and table e. The exhaust gases from the drier may be utilized as the separating medium on the tables. Alternatively the rotary drier may be dispensed with by utilizing a current of hot air as the means for conveying the materials to the tables. In a further modification, the oversize materials from the grading screen b may be subjected to a washing operation, the slimes therefrom, preferably after screening, being mixed with the small coal from the grading screen and then dried and separated.