baber/WOPTO huggingface dataset:
Patent GB-1219047-A (GB)
Title: Pure fluid sensing apparatus
Inventor: EASTMAN JAMES M
IPC: G10K5/02
Filed: 1968-04-30
Abstract: 1,219,047. Gas turbine engine fuel systems. BENDIX CORP. April 30, 1968, No. 51483/69. Divided out of 1, 216, 913. Heading F1G. [Also in Divisions G3 and H4] The apparatus described in Specification 1, 216, 913 is modified by omitting the flip-flop oscillator. In the arrangement illustrated, the oscillator is replaced by a second receiver and transmitter R 1 , T 1  so that when the jets from the nozzles 134a of the amplifiers A, A 1  are undeflected, passage 156 is depressurized and passage 154 pressurized making transmitter T operative and T 1  inoperative. Pressure waves from transmitter T deflect the jet in amplifier A thus making the transmitter T 1  operative and deflecting the jet in amplifier A 1  to stop the transmitter T. The jet in amplifier A is now restored to its undeflected position and the cycle of events is repeated. The passages 154 and 156 are connected to a frequency sensor which supplies the fuel control of a gas turbine with a pressure difference signal corresponding to the error between the turbine temperature measured by the apparatus and a reference temperature. The transmitters may operate on different frequencies. A reflector may be used in place of the receiver R and transmitter T.
Patent GB-1169720-A (GB)
Title: Monoazo Dyes containing a Thiazole Ring
Inventor: WALLACE DAVID JEFFERSON
IPC: C09B29/033
Filed: 1966-11-18
Abstract: 1,169,720. Pyrrolid-2-one derivative. EASTMAN KODAK CO. 18 Nov., 1966 [26 Nov., 1965], No. 51821/66. Addition to 1,122,408. Heading C2C. [Also in Division C4] N - [2 - (N<SP>1</SP> - ethyl - m - toluidino) ethyl]- pyrrolidinone is obtained by reacting butyrolactone with N-#-aminoethyl-N-ethyl-m-toluidine.
Patent GB-1027682-A (GB)
Title: Improvements in or relating to tilt-valves
IPC: F16K1/16
Filed: 1962-02-08
Abstract: The subject matter of this Specification is substantially the same as that described in Specification 1,027,681 but the claims are concerned with the tilt-valve and the associated actuating means.
Patent GB-1475406-A (GB)
Title: Sheet cleaning device
IPC: B08B7/00
Filed: 1974-12-02
Abstract: 1475406 Cleaning photographic materials MINNESOTA MINING & Mfg CO 2 Dec 1974 [12 Dec 1973 19 Nov 1974] 52061/74 Heading G2X An apparatus for cleaning "sheets", film, lantern slides and printed circuit boards specifically, employs a roller(s) having a surface tack adequate to sequester particles on the sheet when passed into contact with the roller and further means for similarly cleaning the roller(s) and having a higher degree of surface tack. The rollers may have a polymine surface and the cleaning means which may be a board manually fed against the roller(s) or a driver or strip automatically presented thereto, may be an adhesive covered paper. Static on the "sheet" may be discharged by a conductive brush or by ionizing radiation. Four embodiments are disclosed one Fig. 1 (not shown) having a pair of nip rollers, cleaned by manually passing a coated board between. The three further embodiments are for cleaning lantern slides which are fed vertically down between the cleaning rolls and then, by a reversing clutch mechanism, returned through the rolls for manual removal.
Patent GB-1151764-A (GB)
Title: Rotatable Table Structures.
Inventor: SAYCE LEONARD ALFRED
IPC: H03M1/00
Filed: 1965-12-09
Abstract: 1,151,764. Turbines. NATIONAL RESEARCH DEVELOPMENT CORP. Dec.5, 1966 [Dec.9, 1965], No.52298/65. Heading FIT. [Also in Divisions F2 and H2] A table 1 contains a coaxial copper disc 6, air from nozzles 8 impinges on the roughened or finned under-surface of disc 6 to rotate table 1. Magnets 9 cause eddy-current braking action to make the rate of rotation constant. The table also carries a radial grating 11 used as a master to produce or for comparison with radial gratings or divided circles.
Patent GB-1241810-A (GB)
Title: Improvements in or relating to disintegrating pulp
IPC: D21C9/10
Filed: 1968-11-07
Abstract: 1,241,810. Bleaching cellulose pulp. SUNDS A.B. 7 Nov., 1968 [9 Nov., 1967], No. 52784/ 68. Heading D1L. Pulp is introduced continuously into the top part of a cylindrical vessel, wherein it is recirculated and disintegrated by a rotary member in an atmosphere of an oxidising gas, and then forms a continuously descending column in the main part of the vessel. The gas pressure may be above, e.g. 5-20 kiloponds/cm<SP>2</SP>, or below atmospheric pressure. The gas may be added continuously. The rotary member may be rotated at 100-2,000 r.p.m. The ratio of the outer diameter of the rotary member to that of the pulp inlet opening may be 1-5. The rotary member may comprise fillets, the upper and/or lower edges of which may be toothed, or pegs. As shown in Fig. 2, it comprises a group of fillets 8 arranged radially (Fig. 3, not shown) or non-radially (Fig. 4, not shown) in a rotary disc 8 carried on a shaft 9. Alternatively, a plurality of groups of fillets may be spaced along the shaft. The rotary member may alternatively comprise vertical or horizontal pegs associated with similar stationary pegs as shown in Figs. 5 and 6 respectively.
Patent GB-1451220-A (GB)
Title: Pressure limiting valve
IPC: B62D5/06
Filed: 1973-11-15
Abstract: 1451220 Valves K-H THOMAS [trading as LANGEN & CO] 15 Nov 1973 [16 Nov 1972] 52994/73 Heading F2V [Also in Division B7] The body of a pressure relief valve is rotatably positioned in a bore of a connector so that the relief valve may assume any angular position relative to the connector whilst maintaining fluid communication. The relief valve comprises a piston with a valving land 56 biased to the closed position by a leaf spring 60. Further lands 44 and 45 with grooves 46 and 47 and a land 50 of smaller diameter are provided for throttling the flow of fluid. The leaf spring which may be an annular or segmental disc is fixed to the body by one or more screws inserted through shims so that the leverage of the spring can be varied.
Patent GB-1064621-A (GB)
Title: Improvements in or relating to compositions containing copper oxide
IPC: C01B32/50
Filed: 1964-12-31
Abstract: Nitrogen, helium and any other gases which may require removal of oxidizable impurities, e.g. organic sulphur compounds, acetylenes, halogens, HCN, CO and NH3 are treated with a CnO composite mass which has been prepared by adding a water-soluble copper salt to a suspension of diatomaceous earth carrier in an aqueous solution of an alkali metal carbonate or bicarbonate having a pH below 11.5, to precipitate a copper compound on the carrier, separating the product and admixing with a clay binder before firing at 600-800 DEG  C.  In examples a helium gas stream containing CO and H2 (100 p.p.m. of each) was purged using a catalyst containing 50.7% CuO, 33% diatomaceous earth and 16.3% clay.ALSO:A process for forming a CuO composite mass consists in adding a water-soluble copper salt to a suspension of diatomaceous earth carrier in an aqueous solution of an alkali metal carbonate or bicarbonate having a pH below 11.5, to precipitate a copper compound on the carrier, separating the product and admixing with a clay binder before firing at 600-800 DEG C. Diatomaceous earth is described as having a surface area of only 1 to 30 sq. in./gm. and this is said to be advantageous.  Subsequent to its preparation the catalyst may be oxidatively or reductively activated.
Patent GB-1456542-A (GB)
Title: Photographic silver halide material
IPC: G03C7/407
Filed: 1973-11-20
Abstract: 1456542 Cobalt ammines EASTMAN KODAK CO 20 Nov 1973 [20 Nov 1972] 53719/73 Heading C1A [Also in Divisions C2 and G2] In preparative examples, cobaltic hexammine sulphate is made by reacting cobaltic hexammine chloride with ammonium sulphate, and cobaltic hexammine carbonate is made by reacting oobaltic hexammine chloride with ammonium carbonate.
Patent GB-1368267-A (GB)
Title: Insect control
IPC: C07C45/29
Filed: 1971-11-29
Abstract: 1368267 Di- and tri-olefinic compounds ZOECON CORP 29 Nov 1971 [1 Feb 1971 (5) 16 Feb 1971 8 Oct 1971] 55201/71 Heading C2C [Also in Divisions C5 and A5] Novel compounds of formula and intermediates of formula where n is 0 or 1, R<SP>1</SP>, R<SP>2</SP>, R<SP>4</SP> are C 1-6  alkyl, R<SP>3</SP>, R<SP>12</SP>, R<SP>13</SP> and R<SP>14</SP> are H or C 1-6  alkyl, Z is Br, Cl, F, or OR where R is H, carboxylic acyl, C 1-6  alkyl or cycloalkyl,Z<SP>1</SP> is H, Br, Cl, or F, Q is -COOR<SP>7</SP>,-COX, -COSR<SP>15</SP>, -COR<SP>15</SP> or -CONR<SP>8</SP>R<SP>9</SP>, R<SP>7</SP> is H, C 1-6  alkyl or C 4-8  cycloalkyl, R<SP>15</SP> is C 1-6  alkyl or cycloalkyl, R<SP>8</SP>, R<SP>9</SP> are H, C 1-6  alkyl C 1-6  alkenyl or cycolalkyl, and X is Br or Cl, are prepared in the B form by the methods described in 55200/71 from the corresponding unsaturated compounds. The preparation of precursor ketones and aldehydes of shorter chain length is also described as in 55200/71. The compounds in the A form are prepared (i) from the corresponding B compound by reaction with (a) hydrogen halide to give Z = halogen and Z<SP>1</SP> = H, (b) halogen to give Z and Z<SP>1</SP> = halogen, (c) mercuric acetate followed by reduction with NaBH 4  to give Z=OH and Z<SP>1</SP>=H, or (d) as in (c) but in the presence of alcohol to give the ether; or (ii) from the A compound in which Z = OH by reaction (a) with halide to give the ether, or (b) with acid, acid halide, or acid anhydride to give the acyl compound. Alternatively, Z and Z<SP>1</SP> may first be introduced into the carbonyl precursors, and the A compounds then be produced by the same methods as for the B compounds. The compounds are insecticides.
Patent GB-1444078-A (GB)
Title: Sleeve for connecting a toilet bowl with a waste-pipe
IPC: F16L21/00
Filed: 1974-12-23
Abstract: 1444078 Pipe connector pieces F KLEINHOF 23 Dec 1974 [21 Dec 1973] 55407/74 Heading F2G A sleeve for connecting a toilet bowl outlet 2 with a waste pipe 4 comprises a portion 1 provided with an internal annular collar of convex section for fitting over the outlet 2, and a portion 3 having an external annular collar also of convex section for fitting within the pipe 4. The collars are preferably formed by folding the ends of the sleeve to the inside and outside respectively and securing the edges by welding the collars then being filled with air under pressure. Resilient flanges 8, 9 having openings 10 to allow passage of air may be enclosed within the collars and in some cases where these flanges are used the compressed air may be dispensed with, the convex section of the collars being maintained solely by the flanges 8, 9. Radially projecting annular gasket ribs 7 may be provided to improve the seal and in a further described embodiment the folded over edges of the sleeve forming the collars instead of being welded are retained within skirt portions on the sleeve and provided with annular ribs to co-operate with the gasket ribs 7 at the edges. The sleeve is preferably of a resilient synthetic material such as polyethylene and the axes of the portions 1, 3 of the sleeve may be coincident, as shown, parallel and offset, or at right angles to provide an elbow.
Patent GB-1128195-A (GB)
Title: Dicyanoacetate derivatives and their use in the preparation of malononitriles
IPC: C07C69/38
Filed: 1966-12-16
Abstract: 1,128,195. Cyanoacetate derivatives and their use in the preparation of malononitriles. E.I. DU PONT DE NEMOURS & CO. 16 Dec., 1966 [16 Dec., 1965], No. 56363/66. Heading C2C. Organic compounds having from 1 to 4 terminal malononitrile groups are obtained by a process which comprises the steps of (1) reacting an acetonitrile having from 1 to 4 groups of the formula -CH 2 CN with a dihydrocarbyl carbonate of the formula (R 1 O) 2 CO, where R 1  is hydrocarbyl containing up to 10 carbons, in the presence of a compound of the formula MOR 2 , wherein M is an alkali or alkaline earth metal of atomic number 3-56 inclusive, and R 2  is hydrocarbyl containing up to 10 carbons, (2) adding a compound of the formula XCN, wherein X is halogen of atomic number 17-53 inclusive, and (3) reacting the solid obtained from step (2) with an aqueous base and then with a strong mineral acid. The acetonitrile reactant suitably has the formula R-(-CH 2 CN) n , where n is an integer of from 1 to 4, and when n is 1, R is hydrogen, alkyl, aryl, cycloalkyl, substituted alkyl, substituted aryl or substituted cycloalkyl, each of up to 15 carbons, and when n is 2, 3 or 4, R is alkylene, arylene, cycloalkylene, substituted alkylene, substituted arylene or substituted cycloalkylene, each containing up to 15 carbons, the substituents being one or more alkyl, aryl, halogen, alkoxy, aryloxy, nitrile, halohydrocarbyl, hydrocarbyloxycarbonyl, arylmercapto, aryl sulphonyl, vinyl, vinyloxy and/or groups, and intermediate compounds obtained from step (2) which have the formula wherein n is an integer of from 2 to 4 and R is arylene which may be substituted as described above, are claimed to be novel. Compounds obtained from step (3) of the above process which are p-arylene dimalononitriles may be oxidized in a further step to give the corresponding tetracyano quinodimethan derivatives. The esterification reaction of step (1) may be effected in an inert solvent under reflux conditions and the introduction of the nitrile group in step (2) may be effected by treating the reaction mixture obtained from step (1) direct with a halonitrile; the hydrolysis reaction in step (3) may be effected by employing a base such as an alkali or alkaline earth metal hydroxide in aqueous solution and the subsequent decarboxylation step may be effected in aqueous solution by employing a strong mineral acid such as HCl, HBr or Hl. The oxidation of arylene bismalononitriles obtained from step (3) may be carried out by employing conventional oxidizing agents such as bromine, chlorine or nitric acid. The overall reaction scheme of steps (1), (2) and (3) leading to the malononitriles may be illustrated as follows:
Patent GB-1272854-A (GB)
Title: Improvements in or relating to flexible drive assemblies for the driving of dental handpieces
IPC: A61C1/18
Filed: 1969-11-18
Abstract: 1,272,854. Dental handpieces. KALTENBACH & VOIGT. 18 Nov., 1969 [26 Nov., 1968], No. 56482/69. Heading A5R. [Also in Division F2] A slip clutch for a dental hand piece comprises facially tooth driving and driven discs 15, 14 urged into engagement by a spring 18 the loading of which is adjusted by a nut 19. The driving clutch disc 15 is ball splined to an intermediate shaft 13 which is connected to a flexible driving shaft 5. The nut 19 is screwed onto the intermediate shaft 13 and is held in an adjusted position by a locking ring 21. The driven clutch disc 14 is freely rotatably carried on the intermediate shaft 13 and is connected to a driven shaft 7 by dogs 30. An overload interaction between the clutch teeth moves the driving clutch disc 15 axially against the bias of the spring 18 out of engagement with the driven clutch disc 14. The handpiece is formed by adding a tool holding part (not shown) to the sleeve 1, the part being held by a spring catch 11.
Patent GB-1306429-A (GB)
Title: Fastening devices
IPC: F16B37/04
Filed: 1970-11-27
Abstract: 1306429 Stud and socket fastenings TINNERMAN PRODUCTS INC 27 Nov 1970 [29 Dec 1969] 56595/70 Heading E2B A stud-and-socket fastener for engagement with a hole A in a panel P is provided with interlocking shoulders 21, 23 and 66, 68 on the stud 4 and socket 6 respectively, to prevent release of the fastener. Both members may be bored to receive a bolt S, Fig. 5, and are preferably moulded together as a single unit. The members may be secured together by frangible links 28, 30, Fig. 6. The head 8 rests on the top surface of the plate P, as do limbs 44, 46 of the socket member. In a modification, the members 4 and 6 may be guided by a rib on one running in a groove in the other (Figs. 9 and 10, not shown).
Patent GB-1149795-A (GB)
Title: Multicellular product of a copolymer of acrylonitrile and process for its preparation
IPC: C08F20/42
Filed: 1966-12-19
Abstract: 1,149,795. Multicellular copolymers of acrylonitrile. SEKISUI KAGAKU KOGYO K.K. 19 Dec., 1966 [24 Dec., 1965], No. 56789/66. Headings C3C and C3P. A multicellular resin comprising 60-95% by weight of acrylonitrile, 40-5% by weight of one or more vinyl monomers copolymerizable with acrylonitrile, substantially uniformly dispersed fine cells of average diameter of not more than 1À0 mm. and having a specific gravity of not more than 0À3 is made by mixing urea and/or a urea derivative such as the alkyl, cycloalkyl, acyl or phenyl derivatives and one or more acids such as sulphuric, phosphoric, formic, pyrophosphoric, acetic, propionic or benzoic acids, with the above quantities of acrylonitrile and vinyl monomers and polymerizing the mixture either by initiating with a catalyst such as azobisisobutyronitrile, benzoyl peroxide and an initiator of the redox system, ionizing radiation or both and then heating the polymer obtained to a temperature at which it is foamed without being degraded or decomposed to any substantial extent. Specified vinyl monomers include one or more of methacrylic acid ester, acrylic acid ester, vinyl acetate, styrene, vinyl toluene, acrylic acid, methacrylic acid, acrylamide and methacrylamide.
Patent GB-1394804-A (GB)
Title: Process for the production of metal alkoxides
IPC: C07C67/00
Filed: 1973-12-07
Abstract: 1394804 Group II and III metal alkoxides RUHRCHEMIE AG 7 Dec 1973 [15 Dec 1972] 56888/73 Heading C2C A Group II and III metal alkoxide is made by reacting the metal with a C 1-12  alochol at 100- 200 C. in the presence of one or more aliphatic; cycloaliphatic or aromatic hydrocarbons.
Patent GB-1211087-A (GB)
Title: Improvements in or relating to retaining a female component on a shaft, spindle or the like
Inventor: BLAND DOUGLAS
IPC: F16D1/072
Filed: 1967-12-18
Abstract: 1,211,087. Securing valve bodies &c. on shafts. TRIANGLE VALVE CO. Ltd. 3 Feb., 1969 [18 Dec., 1967], No. 57328/67. Heading F2U. A female part 1 (e.g. a valve member) is secured on a shaft 3 by the deformation (e.g. permanent) of a circumferential strip 4 integral with the part 1, the strips allowing limited axial movement into their engagement with either a circumferential groove 3a or short flats cut in the shaft 3. There may be two axially-spaced sets of strips 4 formed in the part 1 by a circular or straight saw.
Patent GB-1412607-A (GB)
Title: Heat storage bricks
IPC: C04B35/03
Filed: 1972-12-15
Abstract: 1412607 Thermal storage heaters DIDIER & WERKE AG 15 Dec 1972 [17 Dec 1971] 58058/72 Heading F4U A composition adapted to the production of heat storage bricks by shaping, drying and heating and for embedding electrical heating conductors in cavities comprises a base composition of sinter magnesite or magnesia sinter, chrome ore or olivine or blends thereof and 1 to 8% by weight of clay and 0À2 to 1À5% by weight of a polyphosphate based on the dry weight of the base composition. A heat storage brick for use in an electric storage heater may comprise magnesia sinter, chrome ore or olivine and clay and containing 0À3 to 0À6% by weight of a polyphosphate (determined as P 2 O 5 ).
Patent GB-1356779-A (GB)
Title: System for detecting abnormalities in pipelines
IPC: G01M3/00
Filed: 1972-12-22
Abstract: 1356779 Detecting pipe-line leaks TOKICO Ltd 22 Dec 1972 [28 Dec 1971 12 April 1972] 59504/72 Heading G4H A system for detecting leaks in a pipe-line 10 comprises a flowmeter 11 producing a train of pulses, travelling structures 13 for travelling along the pipe-line at the same speed as the fluid and means 12 spaced along the pipe-line for detecting the passage of the travelling structures and for starting and/or stopping counters, fed by the flowmeter output pulses so that the number of pulses generated while the travelling structure passes along a section is recorded. The sections are of equal length and an alarm 17 associated with a counter 16 is sounded when the count exceeds a predetermined value as a result of reduction of fluid speed due to a leak 18. As shown the travelling structures are balls. The first detector 12a starts counter 16a and the second (12b) stops counter 12a and starts 16b. Counter 16b will be stopped by detector 12c and will have a larger count than the predetermined value due to leak 18 causing alarm 17b to sound. In an alternative embodiment signals from detectors 12 are transmitted to a step relay which switches the flow meter pulse input to the next counter. The travelling structure may alternatively comprise a central stem with a pair of end seal members at the ends of the central stem and an intermediate seal mounted between the end seal members for displacement perpendicular to the stem (Figs. 5 and 6, not shown). The detector (Fig. 3, not shown) is designed for fast sideways displacement on contact with the travelling structure and slow damped return to prevent spurious "bounce" readings with a travelling structure of Fig. 5 or 6.
Patent GB-1214209-A (GB)
Title: Process of preparing methyl vinyl ketone and 2,5-dihydrofuran
Inventor: CHARAVEL B
IPC: C07D307/28
Filed: 1968-12-16
Abstract: 1,214,209. Oxidizing 1,3-butadiene-mercuric salt complexes. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 16 Dec., 1968 [20 Dec., 1967], No. 59684/68. Heading C2C. Methyl vinyl ketone and 2,5-dihydrofuran are obtained by preparing an aqueous solution of an oxygen-containing mercuric salt/1,3- butadiene complex by the adsorption of the mercuric salt in 1,3-butadiene in the presence of water, decomposing the aqueous solution of the complex by heating to 90‹ to 100‹ C., passing the 1,3-butadiene oxidation products as they form, with the aid of an inert carrier gas, e.g. nitrogen or helium, through a chamber maintained at substantially 60‹ to 70‹ C. and then separating and fractionating the oxidation products. The mercuric salt may be the nitrate, perchlorate, acetate or, preferably, sulphate. An increased yield of 2,5-dihydrofuran is obtained by using an excess of the mercuric salt in the preparation of the complex and then absorbing the unconverted mercuric salt by an equimolecular quantity of 1-butene and then decomposing the mixed complexes as above to form oxidation products of 1,3-butadiene and 1-butene which are passed as they form, with the aid of an inert gas, through the chamber and processed as above. In both types of process the products can be separated by passing the product from the chamber maintained at substantially constant temperature into a separator maintained at 0‹ C. where the water and unconverted olefine are removed and the oxidation products which consist mainly of methyl vinyl ketone and dihydrofuran and minor amounts of other oxygenated products particularly diacetyl and crotonaldehyde are then separated by fractionation. The process can be carried out continuously, the water brought over by the carrier gas, and the unconverted butadiene being recycled continuously and the mercurial sludge being regenerated continuously, e.g. by treatment with ozone.
Patent GB-1372033-A (GB)
Title: Roller box tool
IPC: B23B29/16
Filed: 1971-12-06
Abstract: 1372033 Roller box tools WICKMAN WIMET Ltd 6 Dec 1971 [24 Dec 1970] 61366/70 Heading B3T A roller box tool comprises a hollow body member 2 secured to a shank portion 1 the end face of the member 2 being provided with a guideway 3 extending wholly across the end face and offset from the axis of the body member and in which is adjustably secured a tool carrier 4, a pair of aligned slideways 7a, 7b are provided, parallel to the guideway 3 and at right angles to the slideways is provided a further slideway 8. The slideways 7a, 7b and 8 respectively support roller steadies 10 and 12 which are adjustably clamped in their respective guideways in particular relationship to the workpiece to be machined. The arrangement described is specifically adapted to permit the interchange of the support rollers to facilitate the machining of workpieces in either direction of rotation using an alternative tool carrier of opposite hand to that indicated at 4.