baber/WOPTO huggingface dataset:
Patent GB-1086400-A (GB)
Title: System for elimination of pressure in batteries
IPC: H01M16/00
Filed: 1965-09-10
Abstract: 1,086,400. Batteries. DOUGLAS AIRCRAFT CO. Inc. Sept. 10, 1965 [Sept. 11, 1964], No. 38843/65. Heading H1B. Excess pressure in a battery is reduced by feeding evolved gases to a fuel cell and there reacting them. The electricity thus produced may give a warning signal. Water formed in the cell may be returned to the battery.
Patent GB-952919-A (GB)
Title: Rotating blade type evaporators
IPC: B01D1/22
Filed: 1961-10-31
Abstract: 952,919. Film evaporators. BLAW-KNOX CO. Oct. 31, 1961 [Nov. 7, 1960], No. 38956/61. Heading B1B. [Also in Division F2] In an evaporator wherein the liquid, fed to the evaporator through inlet pipe 7, is distributed as a film over a heated cylindrical surface 2 by rotating vanes 20, the vapour and unevaporated liquid are expelled through an opening in the side of an extension 14, at the lower end of the evaporator, by impeller blades 21 mounted on the same shaft 18 as the rotating vanes. The vapour and unevaporated liquid are discharged into a separator 64 which is connected by duct 67a to a condenser, and is maintained under reduced pressure. The liquid product is withdrawn from the separator via pump 66a. The vanes 20 are rigidly fixed to the shaft 18, but they may be replaced by hinged vanes 81, Fig. 9, pivoted on shaft 78 by strap hinges 80 and lugs 79. These hinged vanes automatically adjust themselves to the configuration of the cylindrical surface 2 as the shaft rotates, and they may be tipped with replaceable tips. The top and bottom bearings of the shaft are located outside the evaporator shell, mechanical seals, plus a guard skirt in the base of the evaporator, being used to isolate the bearings from the interior of the evaporator (see Division F2).
Patent GB-1523792-A (GB)
Title: Centering and measuring head for measuring machines
IPC: G01B5/00
Filed: 1975-09-24
Abstract: 1523792 Centering and measuring head TESA SA 24 Sept 1975 [24 Oct 1974] 39078/75 Heading G1M A three co-ordinate measuring machine holds a shank 7 of a measuring head displaceable in the Z co-ordinate, Fig. 1, so that centering keys 18 having contact arms 19 provided with ball ends 20 may enter and be expanded to center a bore of a part held on the machine bed. A sleeve 13 having a quick start thread or groove 12 engaging a pin 10 held against the thread by a spring 8 and sliding in a slot 11, may be rotated to axially slide the spring pressed piston 2 which abuts captured pins 24 on easily-changeable L-shaped arms 19, each arm pivoting about a shaft 16 extending tangentially to an imaginary circle concentric with the piston axis. A washer 27 is subjected to the action of a compression spring 28 secured to a screw 29 and thus holds the pins 24 in their respective recesses. In operation as the piston is moved to the left by turning the sleeve 13 the balls 20 move apart, centre the bore into which they are engaged and pivot levers 30 fixed to the arms. An adjustable measuring contact 31 is arranged to move a piston 35 to slide a pulse scale 37 and give pulses to an optical reading head 38 which sends signals to an apparatus indicating measurement and the centering movement necessary. If the distances between 32 and 16, and 20 to 16 are made equal then the displacement of the ball 20 is equal to that of the ball 32. In Fig. 2 the pin 10 has a ball end 40 and may be slid directly in the slot 11 instead of being rotated by a sleeve and internal grooves. In Fig. 3 the control ring 13 is graduated and co-operates with a vernier 42. As there is no linearity between the displacements of the piston 2 and those of the keys 18 it is preferable to shape the head surface 17 of the piston to give it a cam surface where it engages the pins 24. In this way the graduations 41 may be regular. When the bore has been centered by the arms 19 the ring 13 is rotated in the opposite direction by turning a friction sleeve 43 mounted on the ring, and when the ring has taken up the play between the internal groove 12 and the pin 10 and is about to retract the arms, then the sleeve 43 is arranged to slip and at this moment a measurement reading is taken from 41. The centering head is disengaged by moving ring 13  directly. In Fig. 4 (not shown) the ring 13 carries a pulse head (45) secured to the body 1. This head is connected to a counter and display. In a modification the piston head 17 is contoured to ensure linearity between piston displacement and movement of the arms 19 and an electronic sensor is located in the piston to give the displacements thereof.
Patent GB-981133-A (GB)
Title: Improvements in or relating to instrument faces
Inventor: APPLEBY ERIC GEORGE
IPC: G04B19/30
Filed: 1962-10-16
Abstract: 981,133. Indicating-apparatus. APPLEBY & IRELAND Ltd. Oct. 16, 1963 [Oct. 16, 1962], No. 39164/62. Heading G1J. Indicating-apparatus comprises a light source 28 inset in a block 20 of light-diffusing material placed behind the face 21 to be illuminated, parts of which are covered or shielded with opaque material to form a pattern of markings thereon. A metallic disc 14 carries the block 20 and a synchro 12, whose spindle 13 has fitted thereon a large spindle 25 of similar light-diffusing material which passes through central openings and is formed in one piece with a pointer 26. The dial 21 is made of opal glass or opal synthetic material and is blackened all over its front face except for calibration markings. The spindle 25 is also blackened at its front end and a cover-glass 23 is held by a split ring 24. A neon bulb 28 with a consumption of 0.15 watts is said to be suitable in an instrument whose case 11 has an external diameter of 1. 25 inches and length 3. 5 inches.
Patent GB-1198689-A (GB)
Title: Substituted Pyrazinoic Acid Esters
Inventor: CRAGOE EDWARD JETHRO JR
IPC: C07D241/24
Filed: 1967-11-13
Abstract: 1,198,689. Substituted pyrazinoic acid esters. MERCK & CO. Inc. 13 Nov., 1967 [17 Nov., 1966], No. 39177/69. Divided out of 1,198,688. Heading C2C. Novel substituted pyrazinoic acid esters of the formula in which R is the residue obtained by removing the hydroxyl group from an alcohol; X is H, halogen, C 1-5  alkyl, C 3-6  cycloalkyl, phenyl or halogenated phenyl; Y is H, OH, C 1-5  alkoxy, C 1-3  alkylthio, C 1-5  alkyl, C 1-5  #,#,#-trifluoroalkyl, C 3-6  cycloalkyl, phenyl or a radical of the formula where R<SP>5</SP> is H or C 1-5  alkyl and R<SP>6</SP> is H, C 1-6  alkyl, C 1-6  hydroxyalkyl, C 1-6  #,#,#-trifluoroalkyl, C 4-8  cycloalkylalkyl, phenyl-substituted C 1-6  alkyl, (C 1-6  alkyl)-phenyl-substituted C 1-6  alkyl, halophenyl-substituted C 1-6  alkyl, C 2-6  alkoxyalkyl, heterocyclic-substituted C 1-6  alkyl, C 2-5  alkenyl, C 3-5  alkynyl, C 3-6  cycloalkyl or phenyl, or -NR<SP>5</SP>R<SP>6</SP> is a 5 to 8-membered hetero-cyclic ring containing one N atom, or a six-membered ring containing two N atoms, or X and Y together form a 1,3-butadienylene or a tetramethylene radical; and Z is OH 5  C 1-5  alkoxy, phenyl-substituted C 1-5  alkoxy, SH, C 1-5  alkylthio, phenyl-substituted C 1- , alkylthio or phenylthio, but with the proviso that if Z is OH and one of X and Y is H, then the other of X and Y is not H, phenyl or CH 3 , and if X and Y are both phenyl or together form a 1,3-butadienylene radical, 2 is not OH or C 1-5  alkoxy, are prepared by one of the following methods: (a) compounds in which Z is OH or C 1-5  alkoxy or phenyl-substituted C 1-5  alkoxy or by reacting the corresponding 2-aminopyrazinoic acid esters in acid solution with alkali metal nitrites at 0-10 C., followed by treatment with water or an alcohol of the formula R<SP>7</SP>OH, where R<SP>7</SP> is C 1-5  alkyl or phenyl- (C 1-5  alkyl) respectively; (b) compounds in which Z is SH by heating the corresponding 3-bromopyrazinoic acid esters in alcohol with sodium sulphide and sulphur; (c) compounds in which Z is C 1-5  alkylthio, phenyl-substituted C 1-5  alkylthio or phenylthio by reacting the appropriate 3-bromopyrazinoic acid esters with an alkali metal salt of a thiol of the formula R<SP>8</SP>SH where R<SP>8</SP> is C 1-5  alkyl, phenyl-(C 1-5  alkyl) or phenyl; (d) compounds in which Z is C 1-5  alkoxy by reacting the appropriate 3-bromopyrazinoic acid esters with the corresponding sodium salt of an alkanol. Methyl 3 - bromo - 5 - Y - 6 - X - pyrazinoates are obtained by treating a suspension of the corresponding methyl 3-amino-5-X-6-Y-pyrazinoates in a mixture of bromine, hydrobromic acid and acetic acid at 0 to 10C. with aqueous solutions of alkali metal nitrites.
Patent GB-908035-A (GB)
Title: Improvements in or relating to billet shearing apparatus
IPC: B23D21/00
Filed: 1959-11-19
Abstract: 908,035. Hydraulic machines. EUMUCO A.G. FUR MASCHINENBAU. Nov. 19, 1959 [Nov. 19, 1958], No. 39326/59. Class 69 (2). [Also in Group XXII] An hydraulically operated shears comprises a cylinder 15 for operating the shear blade 12, and opposed cylinders 45, 46 operating workclamps 39, 40 for the bar-stock 38. The cylinder 45 is mounted on a slide 13 which carries the blade 12, cylinder 46 being mounted on the shears-frame 10. Pipelines 47, 48 connect cylinders 45, 46 to cylinder 15 which is supplied by a pump 16, 17 driven continuously through a belt 22, gears 20, 21 and a crank &c. mechanism 18, 19 by a motor 23. Closure by a solenoid 31 of a by-pass valve 26 between the pump and a reservoir 28 operates the shears, the stroke of which is adjustable by a stop 35 driven through gears 36 and a screw 34 by a motor 37. Return strokes of piston 14 are assisted by fluid-pressure supplied behind the piston at 33.
Patent GB-1023964-A (GB)
Title: Improvements in vacuum drying and impregnating line
IPC: F26B5/04
Filed: 1963-10-07
Abstract: 1,023,964. Drying apparatus. ZAVODY ELEKTROTEPELYNCH ZARIZENI (ZEZ) NARODNI PODNIK. Oct. 7, 1963 [Nov. 2, 1962], No. 39348/63. Heading F4G. [Also in Division F1] A charging and pre-drying chamber 1 for admitting articles, e.g. condensers 17, by step-by-step movement into a vacuum drying and impregnating chamber 7 comprises admission and discharge valves 2, 3 and a forechamber 19, in front of the admission chamber which surrounds the valve 2 and which has ports 20, 21 for the supply and withdrawal of hot air to and from the chamber 1. The chamber 1 is evacuable through a pipe 12 and condenser 13 by a vacuum pump 14 when the valve 2 is in its first, closed position. In the valve's mid-position 4, the hot air flow is introduced into the chamber 1, and in its second end third position 5 the articles are introduced from a space 18, the chamber being at least three times the length of the article so that each article undergoes the heating and vacuum cycle at least three times within the chamber.
Patent GB-930785-A (GB)
Title: Draw frames for processing slivers for natural and synthetic fibres
IPC: D01H5/40
Filed: 1959-11-20
Abstract: 930,785. Preparing fibres and spinning yarns. HOWA KOGYO KABUSHIKI KAISHA. Nov. 20, 1959 [Nov. 21, 1958], No. 39498/59. Classes 120 (1), 120 (2) and 120 (3). Apparatus for producing composite slivers of natural and synthetic fibres, so arranged as to produce a blend thereof in a yarn subsequently spun therefrom, comprises two drawing frames having front rolls in close proximity, and parallel, to a pair of calender rolls confined therebetween so that sliver delivered from the two frames are combined after passing through the calender rolls. As shown, cotton and synthetic fibre slivers A and B supplied from cans 9 and 10 are turned in their path of travel through 90 degrees by curl plates, Fig. 3 (not shown), and drafted between back and front rolls 3, 3a and 2, 2a. Drawn slivers Aa and Ba are conveyed over the arcuate surfaces of calender rolls 1, 1a to the nip thereof and then pass through a trumpet condenser 5 and delivery rolls 6, 6a, where they converge to form a composite sliver which is delivered by mechanism 7 to a can 8. The units of the apparatus are synchronously driven from a single motor through belt and pulley, chain and sprocket, worm and worm-wheel and spur and bevel gear mechanisms including interchangeable and independent gears whereby the draft ratios on each side and the speed ratios between front and calender rolls may be separately changed or preselected, Fig. 4 (not shown). In a modification applied to a gill box, Fig. 5 (not shown), movement of one of a pair of grooved sensing rollers, in response to variation in the thickness of the fed group of sliver, is indicated and recorded on a roller and mechanically transformed into left and right movements of shifter mechanism whereby the position of a driving belt running on two cone drums is correctively adjusted in order to regulate the ratio between the speed of movement of a group of fallers (not shown) and the peripheral speed of the front rolls.
Patent GB-826588-A (GB)
Title: Apparatus for determining the dust content of flowing gases
IPC: G01N15/06
Filed: 1957-12-19
Abstract: 826,588. Tachidometers. BOSCH G.m.b.H., R. Dec. 19, 1957 [Dec. 22, 1956], No. 39499/57. Class 97(3) [Also in Group XXVIII] - A tachidometer for determining the soot content of exhaust gases of diesel engines, comprises a sampler with an inlet adapted for insertion into an exhaust pipe and connected by a pipe to a pump the piston of which is movable by a spring from an inner to an outer position to draw the gas into the working chamber of the pump and through a filter. The piston is held in its inner position and released therefrom by manual means. As shown, the tachidometer comprises a sampler formed by tube sections 3, 4 between which is a space 5 into which flow gases in an exhaust pipe 1, the sections 3, 4 being held therein by spring stirrups 9, 13. The gas in space 5 flows through bores 6 in section 4 and via a pipe 8 to a pump which is held on the exhaust pipe by spring clips 75. Pipe 8 terminates in a removable cover 16 of the pump, this cap carrying a triangular plate 28, which distributes the incoming gas evenly. Between the cover 16 and a cap 17 are clamped a filter disc 30 and sealing ring 31. Within the pump casing 25 a piston rod 37 is axially movable, this rod terminating at its upper end in a piston,. formed by discs 33, 34 and sealing ring 35, and at its lower end in a cap 69 between which and a bush 41 carried by an end cap 42 of casing 25 is a spring 72. This end cap 42 accommodates a member 48 which slides on the bush 41 and has inner annular grooves of different diameters, these grooves co-operating with ball bearings 45 mounted in bores in bush 41. A bellows 50 is disposed between member 48 and a member 58 fixed to the casing 25 and an air line passes through member 48 to a bulb 64. When in its inner position, to which it is pushed manually against spring 72, the piston rod is held against the force of spring 72 by the engagement of balls 45 in an annular groove 47 of the rod 37, these balls being held in this position by the member 48 which is pressed by springs 57 against deflated bellows 50 and has its inner groove of smaller diameter opposite the balls. By squeezing bulb 64, the bellows 50 expands and thus lowers slidable member 48 against springs 57 to release balls 45 from the groove 47 whereupon spring 72 forces the piston downwardly and gas is drawn into the casing 25, the air in casing 25 between the piston and member 58 flowing out of holes 73. In another embodiment, the piston rod is held in its inner position by a spring-urged plunger which is moved by a Bowden cable to release the piston rod.
Patent GB-1529277-A (GB)
Title: Electrode
IPC: C25B11/02
Filed: 1976-09-23
Abstract: 1529277 Enlarging anodes MARSTON EXCELSIOR Ltd 7 Sept 1977 [23 Sept 1976]  39508/76 Heading C7B An existing diaphragm cell metal anode, comprising a pair of working sheets 1, 2 electrically connected e.g. by welds 3, 4 to a central current carrying post 5, is enlarged by ensuring the distal edges of the working sheets are movable relative to one another e.g. by cutting or removing U or J- shaped channels (8, 9) welded thereto, and bending e.g. cranking one or both sheets adjacent the post to increase the distance between their major portions Figs. 4, 5 (not shown). A spreader bar having a width greater than the distance between the sheets may be inserted between each pair of opposed sheets either side of the post and forced towards the post to spread the sheets outwardly.
Patent GB-1435760-A (GB)
Title: Iron complexes of tetraazaannulenes
IPC: B01J31/18
Filed: 1973-08-15
Abstract: 1435760 Iron complexes of tetraazaannulenes BASF AG 15 Aug 1973 [4 July 1973] 39558/73 Heading C2C The invention comprises iron complexes having the general formula wherein A and A<SP>1</SP> are, each independently, with an optionally substituted aromatic or heterocyclic ring; and Y<SP>1</SP>, Y<SP>2</SP>, Y<SP>3</SP> and Y<SP>4</SP> are, each independently, hydrogen, alkyl or phenyl, the complex optionally also containing carried oxygen chemically bound therein. They may be prepared by reacting a compound of one of the formulae wherein Q and X are components derivable from a quaternizing agent of the formula XQ, with a compound of the formula and simultaneously or subsequently with an agent yielding iron.
Patent GB-1154957-A (GB)
Title: Electric Arc Welding
IPC: B23K35/368
Filed: 1967-08-30
Abstract: 1,154,957. Welding by fusion. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 30 Aug., 1967 [2 Sept., 1966], No. 39594/67. Heading B3R. Gas shielded short-circuiting arc welding is performed using a filled ferrous electrode containing an oxide or a carbonate of an alkaline earth metal and an arc voltage of 9À8-17 volts. At least 50 short-circuits per second occur. Specified shielding gases are CO 2 ; A; 80% A, 15% CO 2 , 5% O 2 ; 90% A, 5% CO 2 , 5% O 2 ; 95% A, 5% O 2 ; and 90% A, 10% O 2 . The electrode may contain any of the following: 0À3-7% CaC0 3 , 0À2-3% MgO, 1À6% Mn as FeMn, 0À8% Si as FeSi, 0-0À3% potassium felspar, 0À1-2À1% CaF 2 , 2À1% SrCO 3 , 1-2À2% MgCO 3  and Fe powder. The tube may be 60% of the electrode.
Patent GB-1255647-A (GB)
Title: Di- and poly-urethanes
Inventor: BAKER CRISPIN STUART LEWORTHY
IPC: C08K5/29
Filed: 1968-10-04
Abstract: 1,255,647. Urethanes. NATURAL RUBBER PRODUCERS' RESEARCH ASSOCIATION. 2 Oct., 1969 [4 Oct., 1968], No. 39803/70. Divided out of 1,255,646. Heading C2C. The invention comprises a di- or polyurethane of the formula wherein R is a di- or polyfunctional hydrocarbon grouping or polyether-glycol grouping, Q is an aromatic group in the quinonoid configuration and m is an integer equal to 2 or more. It may be obtained by reacting a nitrosophenol of formula  wherein Ar is an aromatic group, with a di- or polyisocyanate of formula Examples are given for the preparation of the compounds. They are useful for cross-linking natural or synthetic rubber.
Patent GB-882896-A (GB)
Title: Motor vehicle licence holder
IPC: B60R13/10
Filed: 1959-11-24
Abstract: 882,896. Vehicle licence holders. HAUTLER, G. Sept. 12, 1960 [Nov. 24, 1959], No. 39867/59. Class 73 A motor vehicle licence holder comprises a casing 1 receiving the licence slip L and a detachable cover 2 each made of transparent synthetic plastic material, the casing 1 being secured to the windscreen by means of a suction cup 3. The cover 2 receives an indicator disc 5 bearing radially arranged items of mileage or like information and a backing disc 8 having a radial window 9, so that by rotation of the disc 5 any particular item of information is framed in the window 9 and is visible from inside the vehicle. A spindle 7 on the disc 5 extends through the backing disc 8 and cover 2 and may be turned by means of a knob 10.
Patent GB-963416-A (GB)
Title: Annealing apparatus and sealing thereof
IPC: D02J13/00
Filed: 1962-10-22
Abstract: 963,416. Curing filaments. MONSANTO CHEMICAL CO. Oct. 22, 1962 [Nov. 10, 1961], No. 39911/62. Heading F4C. [Also in Division F2] Leakage of steam through an opening 43 for the passage of a thermoplastic filament or tow 17 in an end wall of the chamber 11 of an annealing apparatus is prevented by means of flexible vanes 37 secured to a pair of rolls 14, 15, the vanes on each roll being adapted to sealingly engage the end wall, i.e. at 39 or 40, and the vanes on the adjacent roll. A similar set of rolls is located at each end of the chamber and serve also to advance the filament through the chamber. The rolls are driven by an electric motor 26 through gearing 24, 25 and belt and pulley 28, 29, 33, 44. Steam leakage past the ends of the rolls is prevented by sealing gaskets 50 positioned between the ends of the Steam is supplied through a pipe 12 and a rolls and the ends of the arcuate recesses 39, 40. nozzle 16 and exhausted through a pipe 13.
Patent GB-1310273-A (GB)
Title: Grid-controlled transmitter tubes
IPC: H01J21/14
Filed: 1970-08-20
Abstract: 1310273 Thermionic valves SIEMENS AG 20 Aug 1970 [21 Aug 1969] 40045/70 Heading H1D A grid controlled transmitter tube comprises a hollow anode cylinder 5 surrounding a central hollow cylinder 1 having a plurality of radially directed ribs 2 extending parallel to the anode axis to form a common focusing electrode for a plurality of strip like cathodes 4 placed between the ribs to form separate flat electron beams focused and directed radially outwards towards the anode between gaps in a cage-like control grid formed of parallel axially extending elongate members 6, a pair of which is positioned adjacent and radially outwards of each rib. (The drawing is a view of a radial cross-section in which the cylinder radius is very large.) Each cathode comprises a flat or concave sheet or wire of Th coated W and is tensioned by springs at each end. The members of the grid comprise rods, wires or flat strips tensioned by a common spring. In an amplifier the focusing electrode is maintained at or negative to the cathode potential and is cooled; a permanent magnet system provides a radial focusing field. Connections are effected by disc leads separated by ceramic rings forming part of the vessel wall.
Patent GB-1183580-A (GB)
Title: Improvements in or relating to Pipe Couplings
Inventor: STONE RONALD LIONEL
IPC: F16L19/02
Filed: 1966-09-08
Abstract: 1,183,580. Pipe couplings. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 29 Aug., 1967 [8 Sept., 1966], No. 40107/66. Heading F2G. A pipe union I adapted to receive pipes 2, 3, which may be of different diameters, includes sealing rings 6, e.g. of copper, which are retained in tapered grooves in the union and are abutted by the ends of the pipes, and nuts 8 screwed on to the union and for drawing each pipe into the respective bore of the union and retaining the pipes with the end faces thereof engaging the rings. As shown, each pipe is formed with a groove 10 for a steel ring 11 the latter being engaged by the internal tapered surface of a collar 9; the ends of the pipes are internally tapered at 12, and each ring 6 is internally tapered and has an axial length smaller than that of the groove.