baber/WOPTO huggingface dataset:
Patent GB-1370470-A (GB)
Title: Test for ethylene oxide sterilisation and test device and material  therefor
IPC: A61L2/20
Filed: 1972-09-04
Abstract: 1370470 Testing ethylene oxide sterilization ATESMO Ltd 4 Sept 1972 [3 Sept 1971] 41288/71 Heading G1B [Also in Division A5] A substance or device for use in testing an ethylene oxide sterilization process comprises a test material which exhibits a change in colour on exposure to ethylene oxide and which comprises a mixture of magnesium chloride, potassium dihydrogen phosphate and bromophenol blue supported on a carrier and/or contained in a container, the carrier and/or container being effective to delay the change in colour of the material until a predetermined level of exposure to ethylene oxide has been reached. The substance may comprise a dry mixture of magnesium chloride, potassium dihydrogen phosphate and bromophenol blue supported on powdered silica gel; the device may be in the form of an air-tight container in which the test material can be viewed and which has an aperture closed by a film permeable to ethylene oxide and moisture, for example a glass test tube the open end of which is closed by a film of low density polyethylene. To ensure that the change in colour is exhibited only upon exposure to ethylene oxide and moisture at a level which is known to provide sterility, the test material may be calibrated (and its composition adjusted if necessary) by means of tests employing conventional bacteriological test strips.
Patent GB-1531223-A (GB)
Title: Magnetic apparatus
IPC: H02K49/10
Filed: 1975-12-22
Abstract: 1531223 Magnetic couplings P SOUTHGATE 22 Dec 1975 [24 Sept 1974] 41427/74 Heading H2A In an arrangement comprising three sets of permanent magnets 15, 14, 11, the latter mounted on a rotor 10, the magnets 15 may be moved to interact with the fields between the magnets 14, 11 whereby to make the rotor 10 rotate. In the magnetic coupling shown, a set of shafts 20 are driven to periodically bring magnets 15 on wheels 21 close to the magnets 14, 11; output is taken from a shaft 12 supporting the rotor 10.
Patent GB-1482966-A (GB)
Title: Bottle-carriers
IPC: B65D71/00
Filed: 1974-09-25
Abstract: 1482966 Bottle carriers SOC GENERALE DE GRANDES SOURCES D'EAUX MINERALES FRANCAISES 25 Sept 1974 [3 Oct 1973] 41770/74 Heading B8C A bottle-carrier is produced from a blank comprising a central panel 2 which forms the bottom of the carrier, side panels 4 and 4a, an upper panel 6 provided with holes through which the necks of the bottles may extend, and a flap 10 which, in the erected carrier, is bonded to the adjacent side wall 4a, the side panels 4 and 4a each being provided with openings 11a from the top of which extend tabs which may be folded inwards to form a handle in conjunction with the upper panel. A tear-strip 14 may be provided; and in carriers for large numbers of bottles, hand-holes may also be provided in the upper panel 6 of the carrier.
Patent GB-941687-A (GB)
Title: Neutron generator discharge apparatus
IPC: G01V5/10
Filed: 1961-11-23
Abstract: 941,687. Discharge apparatus. P. W. MARTIN, and S. G. STROUD. Nov. 23, 1961, No. 41896/61. Heading H1D. A neutron generator, e.g. for well logging, comprises a pair of spaced electrodes 35, 38, one of which 35 forms a target built up by ions depleted from the gas filling and an intermediate sleeve electrode 28 surrounded by an axial ring magnet 29. The tube has a deuteriumtritium gas mixture as filling, preferably these gases being in equal proportions and under a low pressure of 0.05 to 5 microns. The filling is replenished by heating a titanium or zirconium coil 46. The coil 46 absorbs hydrogen when cool and so may be used to control the characteristics of the tube. Electrode 38 is a sleeve containing a bar magnet 40 magnetized as shown in relation to the ring magnet 29. In operation the gas is ionized by electrons oscillating within the sleeve 28 and deuterium and tritium ions accelerated to the target 35 accumulate in the target material. As further deuterium and tritium ions are produced these are accelerated to bombard the target producing neutrons by deuterium-tritium and tritium-deuterium reactions. The target is preferably silver, but may be zirconium. Specification 732,893 is referred to.
Patent GB-1482396-A (GB)
Title: Cutter drums for heading machines
IPC: E21D9/10
Filed: 1975-10-15
Abstract: 1482396 Mineral-mining cutter drums GebR EICKHOFF MASCHINENFABRIK U EISENGIESSEREI mbH 15 Oct 1975 [29 Oct 1974] 42133/75 Heading E1F A cutter drum for mounting on a universally pivotable boom of a heading machine and having on its peripheral surface at least one helical rib 7 for conveying mined material axially of the drum and for supporting along its radially outer edge cutting tools for mining material is characterised in the or each rib increases radially in height from one end of the drum to a point intermediate the ends of the drum and then decreases radially in height towards the other end. Preferably the configuration of the drum is such that the envelope swept out by the or each cutter toolarmed rib is in the form of two truncated cones whose generated surfaces intersect substantially at right angles.
Patent GB-1355994-A (GB)
Title: Alkyl 6-tetradecenoate derivatives
IPC: C07C405/00
Filed: 1971-09-10
Abstract: 1355994 Alkyl 6-tetradecenoate derivatives ROUSSEL UCLAF 30 April 1971 [30 April 1970] 42237/73 Divided out of 1355992 Heading C2C The invention comprises compounds of the formula  where R<SP>1</SP> is alkyl of 1-8 carbon atoms and m is 3, 4 or 5. The compounds are prepared by reacting a compound of the formula  wherein Hal is chlorine or bromine with an alkali metal alcoholate. These starting materials may be obtained by first reacting propargylacetic acid or a functional derivative thereof with a precursor compound for the CH 2 CO 2 R<SP>1</SP> group to give a compound of the formula subjecting this to enol etherification to give a compound of the formula where alk 1  is alkyl of 1-8 carbon atoms, converting this to a metal salt and reacting with a compound of the formula to give a compound of the formula which is hydrolysed under acid conditions to give a compound of the formula which is catalytically hydrogenated using a partially deactivated hydrogenation catalyst to give a compound of Formula III
Patent GB-1204119-A (GB)
Title: Improvements in and relating to power generating systems
Inventor: WILSON STUART SWINFORD
IPC: F01K25/10
Filed: 1966-09-22
Abstract: 1,204,119. Vapour turbine power plant. NATIONAL RESEARCH DEVELOPMENT CORP. Dec.22, 1967, [Sept.22, 1966], No.42422/66. Headings F1Q and F1T. In a power plant having at least two vapour cycles the vapour after expansion through a turbine in the primary cycle is in an appreciably superheated condition, the heat of de-super-heating being used to provide at least the major heat input to a secondary cycle. In one embodiment, the working fluid of the primary cycle is a high molecular weight fluid such as perfluorodecalin (P.F.D.) or hexafluorobenzene (H.F.B.), while that of secondary cycle is benzene and/or a refrigerant known as R-11. In such a system the P.F.D. is vapourized and highly super-heated in a primary boiler B, using gas turbine exhaust heat, before expanding through a high temperature turbine H and giving up most of its superheat exchanger HE1 to vapourize the benzene flowing in the secondary cycle. The P.F.D. is condensed at C1 and pumped back to the boiler B, whilst the benzene vapour expands through a lower temperature turbine L before condensing at C2. A second heat exchanger HE 2 may be provided to transfer heat back to the primary cycle. The turbines H, L drive an alternator A and feedpumps FP 1 and 2. The flow of the cycles are arranged so that the temperature difference between the primary and secondary fluids is substantially constant throughout the heat exchanger HE1. In a modification, the secondary cycle also uses P.F.D., in which case the primary and secondary cycles may have a section where the flow is common, Fig.4 (not shown). In further modification, Fig. 8 (not shown), a third cycle is provided, the primary and secondary cycles using P.F.D. and the third using benzene.
Patent GB-973450-A (GB)
Title: Process of extracting benzol and naphthalene from washing oils of coke-plant gases
IPC: C10K1/18
Filed: 1962-11-12
Abstract: Benzol and naphthalene are extracted with steam from used coke-gas washing oils by passing the wash oil to the top of an exhausting column, feeding steam in at the bottom of the exhausting column, which column is connected to a rectification column so that the steam leaving the exhauster passes to the base of the rectifier and the liquids leaving the base of the rectifier pass to the top of the exhauster, removing the water-saturated benzol vapours from the top of the rectifier, separating the water from said vapours, e.g. by condensing and decanting, returning part of the dehydrated liquid benzol to the top of the rectifier, removing <PICT:0973450/C4-C5/1> all of the liquid which flows from the upper part of the rectifier at an intermediate point of the rectifier, separating the water from said liquids, returning the dehydrated liquid to a point below the intermediate point, withdrawing a dehydrated naphthalene containing oil from the rectifier at a point below the two points referred to above, and removing the benzol and naphthalene free wash oil from the base of the exhauster.  The wash oil may be preheated to 150-180 DEG C.  The exhauster and rectifier may be superimposed as shown in the Figure, where a single column having 35 washing plates is employed. Wash oil is passed to exhauster E via line 2 and steam via line 3. The water/benzol vapours leave rectifier R and pass to condenser 6 and decanter 8, the benzol being returned in part to R via line 12. The liquid passing down R is withdrawn to decanter 15 via 14 and the dehydrated portion is returned via 17.  Dehydrated naphthalene containing oil is removed at 18 and purified wash oil at 4.
Patent GB-1135920-A (GB)
Title: Improvements in or relating to closure members for containers
IPC: B65D47/06
Filed: 1967-09-20
Abstract: 1,135,920. Container closures. PAUL SCHULZE & CO. G.m.b.H. 20 Sept., 1967 [3 June, 1967], No. 42886/67. Heading B8T. A plastics closure comprises a base ring 1 which may be forced on to the beaded mouth 13 of a container and has a flexible bellows 2 which can be telescoped into the container, Fig. 2, and either has at its end a tubular spout, Figs. 8, 9 (not shown), or a rotary plug valve 4, a rigid plastics cap 16 being retained on the ring when the bellows 2 has been pushed inwards. To open the closure, a part of the cap 16 is torn or cut away, to make the remainder of the cap resilient, when it can be extracted from the base ring 1. As shown, the edge 15 of the cap 16 is pushed into a groove 14 around the top of the base ring 1. Alternatively, the edge 15 of the cap may be held on the base ring (1a), Fig. 4 (not shown), by an encircling metal ring (18) of C-shaped cross-section. As shown, the rotary plug valve 4 has a handle 7, and inlet and outlet openings 5, 6; the latter may initially be sealed by a tear-out disc. The cap 16 is formed with a raised housing 19 which accepts the plug valve 4, and has a small extension to receive the end 8 of the plug valve handle and retain the valve in its closed position. The top of the raised housing 19 has parallel lines of weakness (23), Fig. 5 (not shown), and a tear-tab (21). To open the closure from the Fig. 2 position, the tear-tab (21) is grasped, and the top of the raised housing 19 is pulled out. The edges 15 of the disc 16 are then squeezed radially inwards and released from the base ring groove 14. Finally, the bellows 2 is pulled out. In a modification, the rigid cap has a flat top and a tubular downwards extension (27), Figs. 8, 9 (not shown) internally threaded so that it can be screwed on to the outside of a tubular spout (28) on the bellows (2), and surrounded by a circular tear-out strip. To open the closure, a tear-tab (30) is grasped to pull out the tear strip, thus freeing the centre of the cap, which is unscrewed by means of a handle (31).
Patent GB-894522-A (GB)
Title: Improvements relating to gear generating machines
IPC: B23F5/12
Filed: 1959-12-18
Abstract: 894,522. Gear-cutting. GLEASON WORKS. Dec. 18, 1959 [Dec. 19, 1958], No. 43108/59. Class 83 (3). [Also in Group XXXVII] In a gear-generating machine, the generating train is driven by a motor 19, Fig. 2, the speed of which is varied by a cam 104, Fig. 4, driven by the motor. A gear blank G, Fig. 1, is mounted on a head 15 adjustable in the direction of the blank axis 14, on a base 16 swinging on a slide 17 about an axis 18 intersecting the axis 14 and the tool-cradle axis 12. The slide 17 is adjustable in the direction of the axis 12. The motor 19 rotates the work-spindle 13 and oscillates the cradle 11 through rate-of-roll change gears 22, a cam 28, a bell-crank 29 and a connecting rod 31, the movement of the cradle during cutting being in a constant proportion to that of shafts 24, 27 but being faster and at a varying rate during a return roll. A cam 32 moves the work to-and-from cutting position. Index change gears 38 in the drive to the workspindle cause the blank to be rotated one or more teeth between the cutting operations. The planing tools T, T<SP>1</SP> are reciprocated by a motor 42 through a shaft 45, coaxial with the cradle, and crank-shafts 53. In the cutting of a tooth space, if the rate of roll is constant, more cutting is done at the beginning of a cut than when the tool is in a central position, as illustrated in Fig. 5 by the tool positions a, b, c, d, e after equal intervals of time. To produce a more uniform cutting rate, the speed of the generating motor 19 is therefore gradually increased as the tools move between positions a and e by adjusting an auto-transformer to vary the D.C. voltage applied to the motor 19. The adjustment is made by the cam 104, Fig. 4, rotated from a worm 101, Fig. 2, and rocking a lever 106 geared to the transformer shaft 112. The less the curvature of the tooth profile, the greater should be the acceleration imposed on the rolling motion. The machine may be modified by having a rotary cutter or an intermittent indexing mechanism.
Patent GB-1427638-A (GB)
Title: Process for preparaing 2,3,6-trimethylbenzoquinone
IPC: C07C46/04
Filed: 1973-09-15
Abstract: 1427638 2,3,6 - Trimethylbenzoquinone DAICEL Ltd 15 Sept 1973 43396/73 Heading C2C 2,3,6-Trimethylbenzoquinone is prepared by reacting pseudocumene with a peracid having a pKa (dissociation constant) of more than 7À0 at a molar ratio of pseudocumene/peracid of from 1/1 to 10, in the presence of from 1-150% (by weight) based on the weight of pseudocumene of an acid catalyst selected from strong acids having a pKa of less than 3À0 and Lewis acids at a temperature in the range 0-100‹ C. Suitable peracids are for example peracetic acid, perpropionic acid, perbutyric acid, monochloroperacetic acid, perbenzoic acid, perphthalic acid and performic acid. Suitable acid catalysts are, for example, perchloric acid, periodic acid, sulphuric acid, nitric acid, p-toluene sulphonic acid, phosphoric acid, phosphorous acid, boron trifluoride, fluoroboric acid, mercuric chloride, zinc chloride and mixtures thereof.
Patent GB-980502-A (GB)
Title: Decationized molecular sieve compositions
IPC: B01J29/06
Filed: 1960-12-19
Abstract: A decationized crystalline aluminosilicate zeolitic molecular sieve having a silicon dioxide/aluminum trioxide ratio greater than 3, a pore size of at least 5.6<\>rA and in which at least 10% of the aluminium atoms of the zeolite are not associated with cations, is prepared by contacting a zeolitic molecular sieve with hydrogen or ammonium cation-containing material, thereby replacing at least 10% of the zeolitic cations with hydrogen or ammonium and thereafter removing the latter cations by heating the substituted zeolite at 350-600 DEG  C.  Zeolites referred to are zeolite Y (see Specification 909,266), zeolite L (see Specification 909,264), and faujasite.  The cations replaced are generally sodium, calcium or silver.  Exchange is preferably effected with ammonium ions in a batch or continuous process at elevated temperatures employing any ammonium salt which forms a soluble salt with the replaced cation. A degree of hydrogen cation exchange may be effected by washing with acid and such a process may precede the ammonium ion substitution.  A small amount of hydrogen cation exchange may be effected by simple water leaching.  Removal of the ammonium cation is facilitated by heating in an oxygen-containing atmosphere while applying a vacuum. The decationized zeolite may be re-hydrated and re-activated without loss of molecular sieving characteristics. Examples refer to the replacement of about 30% of the sodium cations of a zeolite by treatment with hydrochloric acid and up to 86% substitution by treatment with ammonium chloride.  Further examples relate to the treatment of a silver substituted zeolite Y with ammonium cyanide or thiocyanate, the treatment of a calcium substituted zeolite Y with ammonium chloride, and the effect on the decationization of the ammonium substituted zeolite Y in vacuum, dry air, dry nitrogen and dry hydrogen.  The decationized sieve may be employed as an absorbent or as a hydrocarbon cracking catalyst.  Specifications 777,233, 972,831 and 972,832 also are referred to.
Patent GB-1398602-A (GB)
Title: Knitting machine cam assemblies prticularly for circular knitting  machines
IPC: D04B15/32
Filed: 1972-09-20
Abstract: 1398602 Knitting-machine cams WIRKMASCHINENBAU KARL-MARX-STADT VEB 20 Sept 1972 43605/72 Addition to 1352892 Heading D1C In a modification of the main invention of Specification 1352892 cam parts 2-4 are secured on segment 1 by projections 11-16 formed or provided on the cams engaging grooves 8-10 running at right angles to the needle stroke. Projections 13-16 are integral with the cams; projections 11-12 are fixed to the cams. Fixing screws 21 are also provided.
Patent GB-1133796-A (GB)
Title: Photographic processing apparatus
Inventor: CALDER WILLIAM JOHN
IPC: G03D5/06
Filed: 1966-09-29
Abstract: 1,133,796. Photographic processing apparatus. ILFORD Ltd. Oct.2, 1967 [Sept.29, 1966], No.43622/66. Heading G2A. The invention relates to photographic processing apparatus having below an entry port for the exposed material and on the same side of the apparatus, an exit port for the processed and dried material, the material being processed by passing it over rollers having their lower surfaces in at least two baths of processing liquid. As shown in Fig.1, the exposed material 1 is fed emulsion side downwards into the entry port 2 of the apparatus, and passed over rollers 8 and 9 having their surfaces in baths of e.g. activator 6 and stabilizer 7 respectively, and then between squeegee rollers 11. The damp material then passes between guides 12 and 13 and on to an endless moving wire mesh belt 18 which carries it beneath a heater 19 and to the exit port 3. Air may be sucked through the apparatus by means of a fan 25. The heater comprises an element 19 which heats the sides of the material more than the centre and which is suspended from a metal sheet 20 having an insulated backing 21 separated from further insulation 23 by an air gap 22. The heater and processing portion of the apparatus may be built as structural units which can be removed from the apparatus as units. The processing and squeegee rollers and the endless belt may be driven by a single drive means, the squeegee rollers rotating at a slightly greater speed than the processing rollers.
Patent GB-1078709-A (GB)
Title: Fastening members for securing railway rails and railway rail and fastening arrangements employing the fastening members
IPC: E01B9/30
Filed: 1965-10-14
Abstract: 1,078,709. Fastening railway rails. LOCKSPIKE Ltd. May 12, 1966 [Oct. 14, 1965], No. 43681/65. Heading E1G. A rail fastening member of resilient metal rod has a first substantially straight portion 1 third 3 and fifth 5 portions which appear on opposite sides of the first portion, when the member is received from above as in Fig. 3, and second 2 and fourth 4 portions joining the other portions and arranged such that one of the second and fourth portions crosses and lies above the other of these portions. The member may be right or left handed, may be modified to prevent release as in Specification 869,385 and may be used in place of the member described in Specification 861,473 in Specification 875,031; 884,237; 913,319; 944,688; 968,659; 971,325; 1,039,017; and 1,047,989.
Patent GB-997958-A (GB)
Title: Preparation of alpha-olefinic compounds by dehydration of 2-alcohols
Inventor: LUNDEEN ALLAN JAY
IPC: B01J23/12
Filed: 1963-11-06
Abstract: 1-Olefinic compounds are obtained by dehydration of 2-alcohols at 330-600 DEG  C. over thorium oxide and/or a rare earth oxide, the 2-alcohol having the formula <FORM:0997958/C2/1> in which at least one R is aliphatic or cycloalkyl hydrocarbon and the other is the same or hydrogen or such hydrocarbon group substituted by an aryl group in a 4- or higher position, a keto group in a 5- or higher position or a hydroxy, alkoxy or ester group in a 6- or higher position, also provided that any unsaturated hydrocarbon grouping is in a 6- or higher position. The reaction pressure may be 0.001-500 mm. Hg or a diluent, e.g. nitrogen or a hydrocarbon may be added. Vapour phase conditions are used and reaction times of 0.1 second to 15 minutes. Specified starting materials are: 5-keto-hexenyl-2-ol, 6-keto-2-octanol, 8 - keto - 2 - decanol, 8 - keto - 6 - methyl - 2 - decanol, 9 - keto - 2 - decanol, 12 - keto - 2 - tetradecanol, 8 - methyl - 11 - keto - 2 - tetradecanol, 12 - keto - 2 - heptadecanol, 14 - keto - 2 - eicosanol, 10 - keto - 2 - eicosanol, 5 - ethoxy-2-hexanol, 5 - pentoxy - 2 - hexanol, 8 - heptyloxy - 2 - octanol, 10 - (2 - methyhexyloxy) - 2 - decanol, 12 - decoxy - 2 - dodecanol, 16 - ethoxy-2 -octadecanol, 6 - propanoyl - 2 - hexanol, 7 - pentanoyl - 2 - heptanol, 9 - ethanoyl - 2 - nonanol, 10 - hexanoyl - 2 - decanol, 13 - heptanoyl - 2 - tridecanol, 16 - butenoyl - 2 - hexadecanol, 10 - decanoyl - 2 - decanol, 2,7 - octanediol, 2,10 - undecanediol, 2,11 - dodecanediol, 2,13-tetradecanediol, 9 - propyl - 2,12 - tridecanediol, 2,16-heptadecanediol, and 2,9-eicosanediol.ALSO:1-olefins are obtained by dehydration of 2-alcohols at 330-600 DEG  C., over thorium oxide and/or a rare earth oxide, the 2-alcohol having having the formula <FORM:0997958/C4-C5/1> in which at least one R is aliphatic or cycloalkyl hydrocarbon and the other is the same or hydrogen or such hydrocarbon group substituted by an aryl group in a 4- or higher position, provided that any unsaturated hydrocarbon grouping is in a 6- or higher position.  The reaction pressure may be 0.001-500 mm. Hg or a diluent, e.g. nitrogen or a hydrocarbon may be added.  Vapour phase conditions are used and reaction times of 0.1 second to 15 minutes. Many starting materials are specified: the examples describe the conversions of methylcyclohexylcarbinol to vinylcyclohexane, 2-octanol to 1-octane and 4-methyl-2-pentanol to 4-methyl-1-pentene.