baber/WOPTO huggingface dataset:
Patent GB-1203508-A (GB)
Title: A process for the purification of benzene-containing hydrogen cyanide
IPC: C01C3/04
Filed: 1968-10-01
Abstract: 1,203,508. Purifying HCN. DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT. 1 Oct., 1968 [3 Oct., 1967; 23 Feb., 1968], No. 46492/68. Heading C1A. Hydrogen cyanide is purified of benzene by washing at 20-50‹ C. with one or more highboiling hydrocarbons whose vapour pressure is at most 1.0 Torr at the working temperature, after which HCN is removed from the liquid by heating to 60-200‹ C., and benzene removed from the liquid by blowing off at 60- 250‹ C. Preferably the benzene absorption is carried out at room temperature. The hydrocarbon is preferably an alkylated benzene, e.g. decyl benzene, isodecyl benzene, undecyl benzene or dodecyl benzene, or hexa- or octadecane or mixtures thereof, or mineral oil fractions boiling above 150‹ C. The blowing out may be carried out using steam, N 2  or CO 2 , or a stream of already-purified HCN may be used. The HCN may be returned for re-purification to the absorption column after benzene has been absorbed in a quantity of 85-95% of the original amount. Preferably in the washing stage 1 m.<SP>3</SP> of solvent is used per 100 kg. of solvent.
Patent GB-1083545-A (GB)
Title: Improved rectifying arrangement
IPC: H02M7/10
Filed: 1964-11-16
Abstract: 1, 083, 545. Automatic control of current and voltage. LICENTIA PATENT-VERWALTUNGS - G.m.b.H. Nov. 16, 1964 [Nov. 14, 1963], No.46576/64. Heading G3R. [Also in Division H2] In a polyphase rectifying arrangement having a semi-conductor diode bridge connected in series with a rectifying bridge which includes controlled semi-conductor rectifiers, the controlled bridge provides regulation of the output voltage under normal load conditions and the diode bridge is switched in automatically to provide additional power when the controlled bridge alone is insufficient to cope with the load demand. In Fig. 2, two diode bridges 1, 2 are connected in parallel through a centre-tapped choke to the load and are connected in series with two controlled bridges 3, 4. In an alternative arrangement Fig. 1 (not shown) the diode bridges 1, 2 are connected in series and the centre-tapped choke is omitted. In control circuitry for providing voltage regulation, (Fig. 3) the voltage (u i ) across a load (5) is compared with the voltage (u s ) of a reference source (8) and the load current is monitored by a current transformer (16). The signals resulting from these measurements are combined, amplified, and fed to units (32) and (34) to modify the conduction angles of the controlled rectifiers in bridges 3, 4. If the load voltage reaches a predetermined threshold level set by a unit (9), logic circuitry (including "and" units 14, 15, 17 and a delay line 13) indicate that the controlled bridges 3, 4, can no longer cope with the load demand and causes the connection of the diode bridges 1, 2 to the A. C. supply through switches (12, 22).
Patent GB-1122013-A (GB)
Title: Improvements in or relating to harvesting machines
IPC: A01D45/02
Filed: 1965-11-03
Abstract: 1,122,013. Maize-harvesters. MASSEY FERGUSON Ltd. 3 Nov., 1965 [5 Nov., 1964], No. 46630/65. Heading A1F. A maize-harvester comprises gathering means for the maize-stalks having a cropreceiving opening in the direction of travel and stalk-feeding means immediately behind the opening to collect the crop and move it transversely to a snapping unit also disposed transversely of the direction of travel of the machine. The harvester comprises an attachment for the front of a conventional combine-harvester 1 having a cutter-bar 20 and table 12 including a double-auger 22 feeding crop into a conveyer-casing 10 leading to threshing mechanism. The harvester-reel is removed and a tubular beam 25 secured to the table above the cutter-bar. Adjustably mounted on this beam are a transverse series of gathering and snapping units, each comprising a pair of dividers 65, 66 adjacent to the inner faces of which are a pair of driven wheels 72, 73, having crop-engaging fingers 74 on their inner faces. The wheels co-operate with curved guides 68, 69, secured to the dividers, to define a throat 70 leading to a combined conveying and snapping roller 47. The part 47a of the roller 47 adjacent to the throat carries auger-flights 50 feeding the crop stems transversely into the snapping portion 47b where radial blades pull the stalks S downwardly so that the cobs E are snapped off by abutment between the edges of two plates 60, 61 overlying the roller 47, the gap 64 between the plates being too small to admit cobs which are deflected rearwardly (Fig. 6, not shown) on to the table-portion 18 and thence into the threshing mechanism.
Patent GB-1537475-A (GB)
Title: Electrical feedthrough devices
IPC: H01B17/30
Filed: 1975-11-14
Abstract: 1537475 Electrical connectors SEALECTRO Ltd & D R EVANS 2 Nov 1976 [14 Nov 1975] 47072/75 Heading H2E An electrical feedthrough comprises a feedthrough housing, e.g. conductive tube 9, and, hermetically sealed therein, a hermetic subassembly including a conductive sleeve and, disposed therewithin, a dielectric body carrying a conductor 3, wherein the sub-assembly is sealed to the feedthrough housing by a flange which projects radially outwardly of the sleeve and is partially sheared against an internal surface of the feedthrough housing. As described, the flange 8 may be integrally formed with the sleeve, e.g. of copper, at one end thereof, as shown, or at a point between the ends thereof (Figs. 4a, 4b, not shown), deformation being effected by shearing the flange by means of co-operating stepped portions 10, 15. Alternatively, the flange may be constituted by a P.T.F.E. shear ring which encircles the subassembly. Deformation is effected by trapping the ring between the stepped portion 10 and a stepped portion integrally formed on the subassembly. The shearing force may be applied directly to the sub-assembly (Figs. 5a, 5b, not shown) or indirectly via thrust member (as shown in Figs. 6a, 6b, not shown).
Patent GB-1551729-A (GB)
Title: Preparation of 3,7-dialkylalkan-7-01-1-als
IPC: C07C45/00
Filed: 1975-11-18
Abstract: In preparing 3,7-dialkylalkan-7-ol-1-als by introducing the aldehyde group by means of a hydroformylation reaction, first a 2,6-dialkylalka-1,5-diene, a 2,6-dialkylalka-2,5-diene or a mixture thereof is reacted with an optionally halogen-substituted alkanecarboxylic acid of 1 to 4 carbon atoms to form an ester and the hydroformylation is then carried out after the ester has been hydrolysed (saponified). The starting dienes are more easily obtainable than the 2,6-dialkylhepta-1-en-6-ols previously used.
Patent GB-1449017-A (GB)
Title: Mine roof supports
IPC: E21D23/04
Filed: 1973-10-11
Abstract: 1449017 Mine roof support GULLICK DOBSON Ltd 22 Aug 1974 [11 Oct 1973 25 Jan 1974] 47618/73 and 03507/74 Heading E1P In a mine roof support, such as an advancing support 10 having a walkway 16,'the support is provided with a foothold or step 18a inclined with respect to the horizontal plane of the support whereby when a series of such supports are used in an inclined seam they form a series of steps for the miner to use. The steps 18a is provided with a tread of high friction, anti-skid material and a hollow passage beneath the step is used to accommodate service conduits. The support may also be provided with 'hand hold members 19 and the thrust members 20 of the advancing rams may also have hand or foot-hold means.
Patent GB-1096736-A (GB)
Title: Improvements in textile finishing
Inventor: SCHOFIELD ARTHUR
IPC: H04Q1/36
Filed: 1965-11-11
Abstract: A method of producing a bactericidal finish on textiles consisting wholly or partly of natural or regenerated cellulose, which finish is resistant to laundering with detergent solutions containing metal sequestering agents, comprises treating the textiles with a polybasic acid in which one H ion has a substantially higher dissociation constant than the other or others, or with a derivative of such an acid, or with a halogenated mono- or poly-basic organic acid, to fix on the cellulose sufficient acid groups to provide at least 2 H ions per 100 anhydro-glucose residues, and then treating with a salt of a metal having bactericidal properties in such a way that the metal is combined with the acid groups directly and not precipitated as an insoluble compound in the cellulose.  The cellulosic material may be in the form of loose fibre, yarn, or woven, knitted, or non-woven fabric.  Specified bactericidal metals are Ag, Cu, Hg, Pb, Be, Sb and Cd.
Patent GB-1271824-A (GB)
Title: Method for ultrasonic inspection of hot steel plates
IPC: G01N29/28
Filed: 1969-09-30
Abstract: 1,271,824. Ultrasonic inspection devices; acoustic couplings. ELECTRONICS RESEARCH CO. Ltd. 30 Sept., 1969 [1 Oct., 1968], No. 47929/69. Headings H4D and H4J. Efficient acoustic coupling between a transducer and a hot steel plate being inspected ultrasonically for flaws is achieved by the use of a steel coupling member in contact with the plate surface. In the embodiment shown for a pulse-echo inspection of a steel plate 1 transported by table rollers 3 and backing roller 11, one or more transmitting and/or receiving transducers is(are) disposed in a hollow steel roller 7 and is(are) supported on a pedestal from the fixed axis of roller 7. The pedestal acts both as an acoustic delay member and as a lens for focusing the transducer beam on the plate surface. Roller 7 is forced against plate 1 by hydraulic or air jacks 5. Oil acting as both coolant and couplant (between the pedestal and roller) is passed through roller 7. To reduce disturbing noises due to heat shock as roller 7 contacts plate 1, roller 7 may be pre-heated to the plate temperature. Graphs demonstrating the feasibility of using a steel coupling and showing ultrasonic attenuation (derived using an oscilloscope and calibrated attenuator) for various contact pressures between a transducer probe and hot steel test-piece are given. In a modification for inspection by a throughtransmission method using pulsed or continuous wave ultrasonic energy, a second hollow roller containing a transducer is disposed contacting the lower surface of plate 1.
Patent GB-1030897-A (GB)
Title: Improvements in or relating to raking implements
IPC: A01D78/00
Filed: 1962-12-19
Abstract: 1,030,897. Haymaking machines. C. VAN DER LELY N.V. Dec. 19, 1962 [Jan. 18, 1962], No. 47940/62. Heading A1F. A drum-tedder comprises three units 1, 2, 3 which are aligned for crop-working and are supported on ground-wheels 15, 16, 112, 121 adjacent to the ends of the units, the units being so connected to each other and to the ground-wheels that the outer units can be swung back relatively to centre unit, for transport, so that the assembly is delta-shaped in plan, the ground-wheels being then automatically lowered to raise the tined drums 4, 5, 6 from ground-engagement. The frame of each unit is roughly U-shaped with a main beam 10, 66, 118 and two short rearwardlyextending beams, such as 11, 12, in which the axle 8 of the drum 5 is journalled. The centre unit is driven, from the power take-off of the towing tractor, through a splined shaft 65 and chain-drive 63, the outer units being coupled to the centre one through square-section coupling members (Fig. 4, not shown) which separate when the units are moved into transport position. The wheels 15, 16 on the centre unit are mounted on forwardly-extending arms pivoted to the beam 10, these arms being connected by links 34 to the arms 40 pivotally movable with the adjacent outer unit to lower the wheel-carrying arm. The wheels 112, 121 on the outer units are mounted on arms secured to shafts 117 which pass through the hollow frame-beams 66, 118 and are connected by links 94 to fixed points on the fixed frame-beams 11, 12. The outer wheels 112, 121 are casters but the centre wheels are swivel-wheels lockable by sector-plates 27 and arms 29. The units, when in working alignment, are coupled together by releasable fastenings which permit relative pivoting of the units about horizontal axes extending in the line of travel.
Patent GB-1136503-A (GB)
Title: Processes for coating articles with glass-ceramic
Inventor: MCMILLAN PETER WILLIAM
IPC: C04B41/89
Filed: 1965-01-27
Abstract: 1,136,503. Coating with glass ceramics. ENGLISH ELECTRIC CO. Ltd. 25 Jan., 1966 [27 Jan., 1965], No. 47953/67. Divided out of 1,136,501. Heading C1M. To coat a ceramic-carbon article, such as a resistor, with a glass ceramic insulating coating, a glass containing SiO 2 , at least 6% Al 2 O 3  and 0-25% B 2 O 3  by weight is chosen so that the resulting glass ceramic will have a coefficient of thermal expansion close to that of the article and a suspension of the glass powder used to coat the article which is then heated to fuse the glass powder and devitrify the glass coating, including the step, at least when the proportion of B 2 O 3  is below 5%, of precoating the surface of the article with a silicone compound or with a silicate before coating with the suspension. The suspending agent is preferably methylated spirits and an anti-settling agent is used such as a 10% ammonia solution in water. Three ranges for suitable glasses with differing thermal expansion ranges are given as follows in percentages by weight: SiO 2  16-32 60-75 60-75 Al 2 O 3  12-16 8-12 6-10 B 2 O 3  10-25 0-10 0-10 ZnO 43-47 0-5 0-5  Li 2 O 0-6 8-12 10-15 Na 2 O 0-6 0-5 0-5 K 2 O 0-6 0-5 0-5  MgO 0-10 - 10-14 CaO 0-10 0-10 0-10 SrO 0-10 0-5 0-5 BaO 0-10 0-5 0-5 P 2 O 5  - 0À5-6À0 0À5-6À0 Coefficient of linear thermal expansion per 40 to 50 to 65 to degree C.: 50 x 10<SP>-7</SP> 65 x 10<SP>-7</SP> 75 x 10<SP>-7</SP>
Patent GB-1193383-A (GB)
Title: Improvements in or relating to Acoustic Logging Apparatus
Inventor: WHITE JAMES EDWARD
IPC: G01V1/16
Filed: 1968-01-23
Abstract: 1,193,383. Well-logging. MARATHON OIL CO. 23 Jan., 1968, No. 47956/69. Divided out of 1,193,381. Heading H4D. The description is substantially the same as in the parent Specification 1,193,381 (see Division H4) but the claims relate to a borehole-logging transducer unit comprising three transducers each having an active axis and mounted on a block with their active axes aligned along respective mutually perpendicular lines which intersect at a point on the surface of the block, whereby the transducers can be used together for transmitting or receiving at said point an acoustic signal having a particular direction of propagation.
Patent GB-1114233-A (GB)
Title: Surveyors' level
IPC: G01C5/00
Filed: 1963-12-04
Abstract: 1, 114, 233. Levels. H. C. PARTEN. Jan. 19, 1965 [Dec. 4, 1963], No.47959/63. Heading G1F. In a surveyor's level which is equipped with means for vertically displacing the optical sighting axis through a substantial distance, a digital system is provided for measuring the displacement which displays and/or records the readings. As shown, a sleeve 11 is mounted at one end on a tripod 13, bearings 11a 11b in the sleeve 11 journalling a nut 14, which is rotatable to displace a hollow lead screw 16 which is guided by a cross-slide 17 movable on guide bars 18 connected to the sleeve 11. The lead screw 16 is internally coupled to a stem 22 moved upwardly and downwardly by a cable system 33, 35 and 23, 27 the stem being connected through the cable system to an electrode head 36. A shaft 37, mounted on the electrode head, is provided with annular rings which are fed with A. C. current such that, as the electrode head 36 is displaced over the rings during upward or downward movement of apparatus, the induced signals are fed to a recording device or taped. The telescope may be mounted on the upper end of the stem 22, or alternatively it may be attached at a fixed height and the reflector system movably mounted on the stem.
Patent GB-1140965-A (GB)
Title: Preparations for combating ectoparasites
IPC: A01N37/52
Filed: 1966-10-26
Abstract: 1,140,965. Pesticides containing formamidines. CIBA Ltd. 26 Oct., 1966 [5 July, 1966], No. 47992/66. Heading A5E. A preparation for combating ectoparasites comprises a compound of formula wherein X is. F, Cl, Br or I, together with a carrier. The preferred compound is N - (2 - methyl - 4 - chlorophenyl) - N - dimethyl - formamidine. In examples, the preparations of the invention are used as a sheep dip and as a.spray for treatment of a chicken coop.
Patent GB-1035148-A (GB)
Title: Improvements in and relating to heat resistant elements for combustion chambers and ducts
IPC: F27D1/12
Filed: 1964-11-26
Abstract: 1,035,148. Combustion chamber linings. BROWN, BOVERI & CO., Ltd. Nov. 26, 1964 [Nov. 28, 1963], No. 48151/64. Heading F4B. A lining element for a combustion chamber or duct is formed at least partly of gas-permeable material so that a coolant may be injected through it. The element comprises a porous inner wall 3 and an outer wall element 9 of shaped bricks, into apertures in which injection tubes 11 connected to an air supply via lines 13, 23, 25 slidably fit. The air blown through porous element 3 cools it from flame 35. Alternatively, Fig. 5 (not shown), the porous element may be backed by an hollow air shaft. Ceramic powder 21 from mixing tank 15 may be entrained with the injected air to form a protective coating on the face of element 3 after fusion in the flame 35. The porous element 3 may be formed from sintered balls, cubes, tubes or cylinders of nickel coated chromium, aluminium oxide, beryllium oxide, magnesium oxide, zirconium oxide, thorium oxide, and mixtures thereof, or from silicon carbide, boron carbide, boron nitride, molybdenum disilicide, titanium bromide or cerium sulphide. The powdered material injected may be ceramic or cermet powders, carbides, borides, nitrides, sulphides or metallic powders, such as chromium alloys or titanium, or a K 2 O, Al 2 O 3 , SiO 2  mix. Mixtures of high and lowmelting point oxides, or high melting-point materials covered by a low-melting point flux such as spinell or a coating of LiF and ZrO 2  on an MgO core may also be used.
Patent GB-1274890-A (GB)
Title: Caustic refining of 2,3,6-trimethylphenol
IPC: C07C37/72
Filed: 1969-10-01
Abstract: 1,274,890. Trimethylphenol. CONSOLIDATION COAL CO. 1 Oct., 1969 [2 Oct., 1968], No. 48254/69. Heading C2C. 2,3,6-Trimethylphenol is separated from a mixture of phenols, including 2,4,6-trimethylphenol and other closely boiling di- and trimethylphenols by obtaining a concentrate fraction of the phenols containing at least 40% by weight 2,3,6-trimethylphenol, subjecting a solution of the fraction in a hydrocarbon solvent which boils between 60‹ and 150‹ C. to countercurrent extraction with aqueous alkali metal hydroxide of between 2 and 10% by weight concentration in an extraction zone, the mole ratio of alkali metal hydroxide to extractables being between 0À9 and 2À0 and the specific gravity of the solution being lower than the specific gravity of the aqueous alkali hydroxide solution, separating the heavier extract from the lighter raffinate, recovering the raffinate consisting of 2,3,6- and 2,4,6-trimethylphenol in the solvent and fractionally distilling the raffinate to recover 2,3,6-trimethylphenol.
Patent GB-1414300-A (GB)
Title: Power tools having plastics material casings
IPC: F16M1/00
Filed: 1972-10-20
Abstract: 1414300 Moulding power tool casings ROBERT BOSCH GmbH 20 Oct 1972 [22 Oct 1971] 48347/72 Heading B5A [Also in Divisions B3 and F2] The casing of a power tool, as shown an electric drill, has an inner skin 100 of plastics material-which determines the relative positions of the working parts of the toolssurrounded by a foamed plastics material housing 101 which is thicker than the inner skin and may be denser at its outer surface than its cellular core. The inner skin may be formed as two shell halves, locked, welded or otherwise connected together after assembling the working parts in one half. The assembly may then be positioned in an outsize mould wherein it is encased in foamed plastics material. Slots 129, 130 for cooling and may be formed by punching or milling or by providing removable members in the mould.
Patent GB-1131498-A (GB)
Title: Niconitic acid esters
IPC: C07D213/80
Filed: 1965-11-16
Abstract: 1,131,498. Nicotinic acid esters. YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd. 16 Nov., 1965 [18 Nov., 1964; 12 Oct., 1965], No. 48630/65. Heading C2C. Novel esters of nicotinic acid of formula wherein R is a straight or branched chain alkyl radical of 5-20 carbon atoms and n is 1, 2 or 3, are prepared by esterifying a compound of the general formula wherein R is as defined above, with nicotinic acid or a functional derivative thereof.
Patent GB-1375744-A (GB)
IPC: G01R31/08
Filed: 1972-10-24
Abstract: 1375744 Locating noise sources in power distribution networks INTERNATIONAL BUSINESS MACHINES CORP 24 Oct 1972 [6 Dec 1971] 49068/72 Heading G1U [Also in Division H2] In a method of locating a noise source in a power distribution network, the direction of propagation of noise signals is sensed sequentially in various conductors of the network until a node is found such that in all but one of the conductors connected to the node the direction of propagation of the noise signals is away from the node. By proceeding along the conductor thus dif-  ferentiated in the opposite direction to the direction of propagation of the noise signals along it, and sensing the conductors at the node that is next encountered, the location of the noise source is progressively more particularized, in an obvious manner. As described the direction of propagation of noise signals in a conductor is determined by comparing the polarity of the voltage of the noise signal in the conductor with the polarity of the voltage induced by the noise current, in a coil positioned near the conductor, and relating the result of the comparison - which will be either that the two voltages are in phase or that they are out of phase with each other - with the direction of the coil, this being facilitated by mounting the coil in a probe 2, 4, Fig. 3, the casing of which is marked with an arrow 10. The probe also includes a voltage pick-up, (8) Fig. 2 (not shown) which can be inserted into a test socket on a three-phase bus-bar chamber 12, so as to make contact with one of the transmission conductors. Comparison of the phase of the noise signal voltage, and the voltage induced by the noise signal current is effected by an arrangement Fig. 1, which allows either voltage to be displayed on a c.r.t. 46, selectively under the control of a switch 30. In either position of the switch 30, the bus-bar voltage, picked up by contact 8, is applied via a resistor 38 and an attenuator 48 to the c.r.t to provide triggering pulses at the supply frequency. With the switch 30 in the position shown, the noise voltage which is extracted from the supply signal by a high-pass filter 34, 36, is applied to the c.r.t. via an attenuator 42, and displayed. With the switch 30 in its other position, the voltage induced in the pick-up coil 6 by the noise current is applied to the c.r.t. and displayed, any voltage of supply frequency being removed by appropriately chosen resistors 22, 24. Preferable, the arrow 10, Fig. 3, on the probe points in the direction of propagation of the noise signal in the conductor being sensed, when the voltages displayed on the c.r.t. are of opposite phase, i.e. the arrow points towards the noise source when they are in phase.
Patent GB-1107037-A (GB)
Title: Improvements in blocks for fixing screws and the like in concrete
Inventor: CRAXFORD ARTHUR
IPC: E04B1/41
Filed: 1964-12-03
Abstract: 1,107,037. Nailing or screwing blocks for concrete structures; attaching to shuttering. EXPANDITE Ltd. 12 Nov., 1965 [3 Dec., 1964], No. 49215/64. Headings E1S and E1W. A nailing, screwing &c block 1 for setting in concrete has on one face one or more undercut recesses 12 within each of which the head 10 of a stud 6 of resilient plastics material engages with a snap fit so that the shank 7 of the stud projects from the block. In use, the projecting shanks 7 are engaged within holes 15 in the shuttering 16 and when the shuttering is struck the studs stay in the holes 15 and the heads 10 are pulled from the recesses 12. The block 1 may be made of high density polythene.