baber/WOPTO huggingface dataset:
Patent GB-530800-A (GB)
Title: Improvements in and relating to electric meters of the induction type
IPC: G01R11/36
Filed: 1939-07-03
Abstract: 530,800. Supply meters. WALL, G., McCALLUM, G., and METROPOLITANVICKERS ELECTRICAL CO., Ltd., July 3, 1939, No. 19367. [Class 37] An induction meter has a quadrature coil 5 and an anti-quadrature coil 6 arranged so that their circuits are closed through resistances 7, 8 with a common adjusting element 9 by which the resistances in circuit with the coils 5, 6 are simultaneously adjusted in opposite senses. The quadrature coil 5 is wound on the voltage pole 2 so as to be threaded by the voltage flux, the anti-quadrature coil 6 being wound in opposite directions on the current poles 3. In a modification, the quadrature coil may be wound on the two current poles adjacent to the air gap. The resistances 7, 8 may comprise two straight resistance wires, or one may be replaced by a wire of negligible resistance. By simultaneously increasing the resistance in the circuit of the quadrature coil 5 and decreasing that in the circuit of the anti-quadrature coil 6, the percentage adjustment in the speed of the meter on inductance load is rendered approximately proportional to the displacement of the adjusting clamp 9.
Patent GB-1272528-A (GB)
Title: Hydraulic pump having non-radial cylinders contained in a rotor
IPC: F04B1/20
Filed: 1970-04-22
Abstract: 1,272,528. Reciprocating pumps. ALFA ROMEO S.p.A. April 22, 1970 [April 30, 1969], No. 19393/70. Heading F1A. In a revolving cylinder block pump with axial or inclined pistons 3 engaging on inclined member 4 of fixed or variable inclination, Figs. 3 and 4 (not shown) the cylinder block 2 is supported against tilting forces by a member 27 secured to inclined member 4 and having a spherical head 22 inserted in a cylindrical chamber 23 in the block 2, members 27 and 4 being supported by a bearing 8 for free rotation with the block 2. A shaft 16 drives the cylinder block 2 via splined coupling shaft 18. The block 2 engages a stationary valve plate 1.
Patent GB-1056338-A (GB)
Title: Apparatus for supplying heated gases
Inventor: KELLETT ERIC
IPC: F01M9/04
Filed: 1964-06-11
Abstract: 1, 056, 338. Gas turbine engines. C. A, V. Ltd. June 8, 1965 [June 11, 1964], No. 19511/64. Heading F1G. The invention relates to a gas turbine type gas generator for the supply of hot gases such as for use in crop drying plants and aircraft engine heaters. The gas generator comprises a shaft 11 rotatably mounted within a body part 10, the impeller 20 of a centrifugal compressor being mounted at one end of the shaft and the rotor 14 of a radial inward flow turbine at the other end The compressor has an axial air inlet 24 and a tangential outlet 23 from which air passes to a combustion chamber 26, Fig. 1 (not shown), combustion gases passing through a tangential inlet 17 to the turbine 14 and discharging therefrom to a point of use through the axial outlet 18. The shaft 11 is formed with opposite-hand screw threads 12 which constitute a fuel pump having inlet ducts 32 and an outlet duct 33. Fuel is supplied from a tank to the inlet 29a, and the fuel discharging from the outlet 33 passes through line 35 to the spray nozzle in the combustion chamber. The crests of the screw threads 12 serve as a shaft bearing. The shaft is located against axial movement by means of a pair of thrust blocks 13. Sealing plates 19 and 25 are secured to the body part 10 adjacent the turbine and compressor respectively.
Patent GB-422563-A (GB)
Title: Improvements in the manufacture and production of aliphatic amines
Filed: 1933-07-10
Abstract: Aliphatic amines containing up to four carbon atoms in the alkyl groups are prepared from compounds of the formula ROX, where R is an alkyl group containing up to four carbon atoms and X is hydrogen or an alkyl group containing up to four carbon atoms, by heating the compounds with more than an equimolecular amount of ammonia or a primary or secondary aliphatic amine containing up to four carbon atoms in the alkyl group or groups; the reaction is effected under a pressure of more than about 50 atm. and in the presence of a dehydrating catalyst, and preferably at 300--450 DEG  C. The process may be conducted cyclically, with return of the excess of ammonia or amine to the reaction.  When ammonia is used, a primary amine is normally the principal product.  When it is desired to obtain mainly a secondary amine from ammonia, the corresponding primary amine is added to the reaction mixture; to restrain the formation of tertiary amine, the latter may also be added.  In the examples: (1) methyl alcohol and an excess of ammonia are passed at 380 DEG  C. and 80 atm. over alumina gel in a tube lined with manganese-copper; methylamines, mainly monomethylamine, are obtained; (2) ethyl alcohol and an excess of ammonia, together with ethylamine and triethylamine, are passed at 400 DEG  C. and 200 atm. over alumina gel; diethylamine is recovered from the product by fractional distillation; the excess of ammonia and the mono- and tri-ethylamine, which are present in the product in amounts corresponding to those taken, are returned to the reaction; (3) n-propyl alcohol and an excess of ammonia, together with n-propylamine, are treated as in example 2; di-n-propylamine is recovered, as well as n-propylamine in the amount taken; (4) dimethyl ether and an excess of ammonia are passed at 375 DEG  C. and 150 atm. over alumina gel; methylamines, mainly monomethylamine, are obtained; (5) isobutyl alcohol and an excess of isobutylamine are passed at 380 DEG  C. and 200 atm. over alumina gel; di- and triisobutylamines, mainly the former, are obtained; (6) ethyl alcohol and an excess of diethylamine are passed at 375 DEG  C. and 180 atm. over alumina gel; triethylamine is obtained. Specification 421,596 is referred to.
Patent GB-1136274-A (GB)
Title: Capstan for tape drive
IPC: G11B15/28
Filed: 1966-05-03
Abstract: 1,136,274. Magnetic tape recording and reproducing systems. AMPEX CORP. 3 May, 1966 [17 May, 1965], No. 19534/66. Heading G5R. A capstan for a magnetic tape drive system, Fig. 1 (not shown) comprises a cylindrical capstan member 10 having a driving surface 32 with a substantial coefficient of friction, a plurality of circumferential grooves 34, Fig. 2, and transverse grooves 38 being formed in the surface 32 and arranged to permit boundary layer air between tape 14 and capstan 10 to escape. Surface 32 may be formed of rubber or other resilient material. In a modification shown in Fig. 5A grooves 40, 41 in the capstan surface 32 are provided by criss-crossed spiral cuts.
Patent GB-698183-A (GB)
Title: Improvements in or relating to machine tools having tables linearly movable by fluid-pressure operated pistons
IPC: F15B9/12
Filed: 1950-08-04
Abstract: 698,183. Fluid-pressure servomotor-control systems. STARRFRASMASCHINEN AKT.-GES. Aug. 4, 1950 [Aug. 6, 1949], No. 19552/50. Class 135 A machine tool having a pressure-fluid operated piston 3 for moving a table 5 comprises a control valve member 12 for the piston, rotatable by gearing 43, 42 and engaging a threaded shaft 40 attached to a pinion 37 meshing with a rack 36 on the table. Pressure fluid is supplied through lines 27, 28 to both sides of the piston, there being a continuous bleed to exhaust line 29 through the valve when its control member is in neutral position. Rotation of gear 43 results in axial movement of member 12 and corresponding movement of the table 5 which, by the rack 36 and pinion 37 causes recentering movement of member 12. In a modification, the rack and pinion have inclined teeth and the pinion is directly attached to member 12. The drive of the gear 43 may incorporate change-speed gearing.
Patent GB-422555-A (GB)
Title: Improvements in or relating to folding legs for tables or other articles
Filed: 1933-07-11
Abstract: 422,555. Hinges. INGRAM, J. F., 123, Pritchett Street, Birmingham. July 11, 1933, No. 19591. [Class 65 (ii)] A hinge for the leg of a folding table comprises a socket member, for receiving the leg, pivoted between opposite limbs of a bracket member, fixed to the table top, and a locking bolt or catch carried by the socket for engagement with the bracket to hold the leg foldec and unfolded, the bolt or catch lying outside the leg so that it does not prevent insertion of the leg into the socket after assembly of the hinge. In the form shown, the leg 2 is inserted from the bottom into a metal socket 1, of U-shape in plan, pivoted by a pin 12 between the arms 3<a>, 3b of a bracket fixed to the table top. The leg and socket are rounded at the top, and the leg is slotted at 11 to pass over the pivot pin 12. A bolt 5, sliding under spring pressure in a housing 6 on the outside of the socket 1, engages notches 10 in the bracket member 3<a> to hold the leg in either position ; a finger knob 9 on the bolt projects through a slot in the housing 6. In a modified form, the pivot pin is arranged across the corner of the table, so that the leg folds diagonally towards the centre of the table.
Patent GB-404955-A (GB)
Title: Improvements relating to the jointing of pipes and the like
IPC: F16L21/04
Filed: 1932-07-11
Abstract: 404,955. Joint for pipes. WILSON, P. H., 21, Trevose Gardens, Sherwood, Notting- ham, RIDLEY, W., 18, Cromwell Road, Beeston, Nottinghamshire, and STANTON IRONWORKS CO., Ltd., Stanton-by-Dale, near Nottingham. July 11, 1932, Nos. 19610/32 and 14531/33. [Class 99 (i).] The packing comprises a soft metal body with an enclosed stress-distributing reinforcement and is suitable for spigot-and-socket pipe and shaft joints. In the construction shown in Fig. 1, a lead ring a of conical form contains a steel or other metallic slightly coned ring d with bellow-like corrugations d<1>. The ring d extends to the flat end c of the ring a and is provided with saw cuts d<2>. In the construction shown in Fig. 3, the wedge-shape ring is a compressed U-shape ring, one side of which is tapered to a sharp edge b<1>. The joint-retaining ring r, of the kind described in Specification 282,160, [Class 99 (i), Pipes and tubes, Joints &c. for], has a reduced end r<1> to exert pressure adjacent the insertion. The flattened ring a, Fig. 4, is provided with sand, water, oil, or finely divided solid substances. The ring is vibrated during filling to effect compactness. The ring r is coned at t, and rounded at t<1>. The socket is flared at s<4> to permit a rocking movement of the spigot. The packing may be in the forms of rings, or comprise continuous jointing.
Patent GB-1037424-A (GB)
Title: Production of electrodes for alkaline storage batteries
Inventor: ACKERMANN KARL
IPC: H01M4/28
Filed: 1963-05-17
Abstract: 1,037,424. Accumulators. BADISCHE ANILIN- & SODA-FABRIK A.G. May 17, 1963 [May 26, 1962], No. 19661/63. Heading H1B. Electrodes for alkaline storage batteries are made by treating a nickel or a cobalt grid with a solution containing at least 10% of a weak acid and a salt of cobalt or nickel or a basic metal having an oxidizing anion and then further heating the grid with an aqueous solution of an alkali metal hydroxide.
Patent GB-1035696-A (GB)
Title: Hydraulic variable speed transmission systems
Inventor: WRIGHT JOHN THOMAS MATTHEW
IPC: F16H39/00
Filed: 1963-05-17
Abstract: 1,035,696. Controlling clutches; changespeed control. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 12, 1964 [May 17, 1963], No. 19664/63. Headings F2D and F2L. An hydraulic transmission for a tractor &c. has a swash-plate pump 11 feeding a swashplate motor 12, one or both of which is of variable capacity, the pipes 13, 14 between the pump and motor being connected by a normallyclosed by-pass valve 18, opened on actuation of a hand valve 24 to disconnect the drive. Pipes 15, 16 transmit liquid from the pump-motor circuit 13, 14 to a two-way valve 20 which opens to the source of higher pressure, and feeds liquid to a space 17 at the end of the valve 18, where it acts against the bias of a valve-closing spring 19. Liquid passes from the space 17 through a bore 18b in the valve 18 to a restriction 18c, and thence to pipes 29 closed by a oneway valve 23 leading to a sump 22 and also closed by the hand valve 24. While the valves 23, 24 remain closed, the valve 18 remains in its shut position, and the pump 11 may drive the motor 12. If the hand valve 24 is opened, the resulting liquid flow through the pipes 29 and the restriction 18c develops a pressure differential across the latter, so that the valve 18 is slidden against the bias of the spring 19 to its open position. The transmission pipes 13, 14 are now directly connected, and the pump 11 can no longer drive the motor 12. The oneway valve 23 functions similarly, opening when a predetermined pressure is exceeded. The hand valve 24 incorporates a switch 35 in the tractor starter motor circuit, the arrangement being such that the starter cannot operate until the hand valve, and consequently the valve 18, have been opened. When the hand valve 24 has been opened to prevent the pump 11 driving the motor 12, accidental operation of a change-speed lever (not shown) cannot establish a ratio to drive the tractor &c. Accordingly a power take-off can then safely be driven by the tractor &c. engine.
Patent GB-138849-A (GB)
Title: Anti-explosive and non-inflammable gasoline tank
IPC: B64D37/06
Filed: 1919-08-11
Abstract: 138,849. Ericsson, H. C. Feb. 14, 1919, [Convention date]. Tanks.-Relates to fuel tanks for aircraft of the type consisting of two rigid metallic shells having an expansible elastic puncture-closing packing confined between the shells, and consists in the use of drainage passages in the interior of the packing. As shown in Fig. 3, the packing between the shells A, B consists of layers of adhesive cement 1, cord fabric 2, uncured rubber 3, tyre fabric 4, corrugated paper 4¢, felt 5, tyre fabric 5¢, rubber 6, felt 7, rubber 8, and tyre fabric 9. The corrugated layer 4¢ forms vertical drainage channels, and leakage may be withdrawn through pipes 15, 14, 12, Fig. 1. The amount of leakage is indicated by a gauge-tube 10.
Patent GB-1147461-A (GB)
Title: Ophthalmoscope
Inventor: RODENSTOCK RUDOLF
IPC: A61B3/12
Filed: 1966-05-04
Abstract: 1,147,461. Opthalmoscopes. R. RODENSTOCK. May 4, 1966 [May 4, 1965], No.19739/66. Addition to 1,012,838. Heading G2J. The opthalmoscope of the parent Specification is modified in that the aperture of an adjustable iris diaphragm 2 located at the position of the intermediate image of the light source is cut down by a straight edged blade 3 to such an extent that the aperture defined by the diaphragm 2 and the blade 3 is a complete circle only when the diaphragm is almost closed. When the diaphragm is fully open the aperture defined is slightly more than a semicircle.
Patent GB-422571-A (GB)
Title: Improvements relating to multitubular heat exchangers for heating and/or cooling water or other fluids
IPC: F28D7/12
Filed: 1933-07-12
Abstract: 422,571. Water heaters; field-tube heat-exchangers. HOWLETT, E. J., 18, Grove Road, North Finchley, London. July 12, 1933, No. 19751. [Classes 64 (i) and 64 (iii)] A multi - tubular heat - exchange apparatus in which a fluid to be heated or cooled flows and returns through tubes L, M one surrounding the other, and a liquid flows in a compartment D surrounding the tubes in contra-flow to the fluid in the outer tubes. Water is fed at B to the top of compartments D to flow thermo-siphonically down transversely to the tubes, and rises from the base through a duct F in a partition wall E into the tops of similar compartments D with ducts F to pass to an outlet C. The vertical headers G, which lie at the same ends of the compartments, are divided by a vertical partition K into two cells H, J from which the outer tubes L and inner tubes M respectively extend horizontally. The headers are connected by pipes Q so that liquid in the tubes L is always in contra-flow to that in compartments D. The ducts F are at alternate ends of the walls E and have openings at the top at one side and at the bottom of the other, so that water always overflows at the top. The bottom openings may have sluice gates for cleaning. The tubes L are supported at their outer ends by a plate N.
Patent GB-1112820-A (GB)
Title: Improvements in or relating to electrical storage systems
Inventor: ROBINS JOHN MONTGOMERY
IPC: G06F12/122
Filed: 1967-04-28
Abstract: 1,112,820. Associative stores. STANDARD TELEPHONES & CABLES Ltd. 28 April, 1967, No. 19773/67. Heading G4C. An associative search is performed in a first store MS and if the required item isn't present, in a second store VS, there being provision to transfer items required more than a certain number of times from the second store VS to the first. Item-pairs are stored in respective rows of two stores MS, VS, each row of the second store also including a use count E for the respective pair. The first item of a pair whose second item is required is staticized at ST1 and compared AC1 with the first item from each row in turn of the first store MS, starting from the top. On equality, the second item of the pair reached is read out and the pair interchanged with the pair immediately above it. If none of the items match, the first item required is supplied to staticizer ST2 and compared AC2 with the first items of the second store VS, the second item of the pair giving equality being read out, with incrementing of the associated use count E. If none of the items match in the second store VS, the operator is informed OP (the required first item in ST2 being displayed) and he keys in the associated second item, the pair being placed in the top row of the second store VS with a use count of 1, the pairs already present being moved down one, the lowest being deleted. Alternatively, the new pair could replace the oldest pair in the store. The keyed-in item is also sent to the requesting equipment. If the same item is requested again, the operator is informed and he keys in the second item again for a check comparison with that obtained from the store VS. Only if there is agreement is the item sent to the requesting equipment. The use count of each item read out is checked at M and when it reaches a threshold value the pair is transferred to the top row of the first store MS, the pairs already present being moved down one, the lowest being deleted. If the threshold value is 2, transfer occurs on matching on the item in the second store VS, section E and unit M being unnecessary, and transfer being conditional on the check comparison mentioned showing agreement. Associative matching could be done on either item of the pair, selectively.
Patent GB-128841-A (GB)
Title: Improvements in or relating to Frames for Ladies' Cycles.
Inventor: RIGBY GEORGE EDWIN
IPC: B62K3/06
Filed: 1918-12-03
Abstract: 128,841. Rigby, G. E. Dec. 3, 1918. Bicycles.-In a frame for ladies' pedal-driven cycles, two laterally-arranged tubes b below the usual curved tube f are connected at their upper ends to the lower head lug c and at their lower ends to an axial extension d of the seat tube r beyond the crank bracket e, the tubes b, f being connected by a bridge-piece k. At the rear, auxiliary side stays m, secured to the chain stays near the crank bracket, are connected at their upper end in a three-way lug o at or near the middle of the seat tube. The Provisional Specification refers to more than one extension below the crank bracket.
Patent GB-1529045-A (GB)
Title: Method of preparation of trivalent plutonium formate
IPC: C07C53/06
Filed: 1977-05-12
Abstract: 1529045 Plutonium (III) formate COMMISSARIAT A L'ENERGIE ATOMIQUE 12 May 1977 [25 May 1976] 20034/77 Heading C2C  Trivalent plutonium formate is obtained by reacting a nitric acid solution having a nitric acid concentration within the range 0À01 to 15 M and containing plutonium (III) ions and/or plutonium (IV) ions with a formic acid solution to obtain a precipitate of plutonium (III) formate. The precipitate may be filtered off and washed with formic acid, filtrate and washings being returned to the reaction.
Patent GB-1111663-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L21/60
Filed: 1965-05-12
Abstract: 1,111,663. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 May, 1965 [15 May, 1964], No. 20051/65. Heading H1K. In a junction type semi-conductor device a metal electrode extending from one region over an insulating protective layer is capacitively decoupled from the semi-conductor body by an externally connectible conductive or semiconductive layer disposed between it and the body and isolated from the latter by insulating material or a PN junction. A transistor of this type (Fig. 1) is formed by oxidizing an N-type silicon wafer, vapour depositing boron trioxide into an aperture formed in the oxide layer and diffusing it in to form the base zone 3, reforming the oxide and diffusing phosphorus pentoxide through apertures in it to form emitter zones 4. Aluminium (or nickel) is then vapour deposited over the oxide and reduced by etching to form the shielding layer 9, 10. Silicon monoxide 8 is next deposited and aluminium emitter 6 and base 5 electrodes, which are subsequently alloyed in, formed by similar techniques. Finally gold wires are pressure-bonded to the electrodes and to area 10 of the shield and the wafer soldered to a gilded fernico plate with indium-antimony solder. In an alternative device formed by similar techniques (Fig. 4, not shown) two shielding layers in the shape of P-type layers formed in the wafer before or at the same time as the base zone are used, with portions exposed for attachment of electrodes. Although emitter and base electrodes are both shielded in the above devices it is only essential for the emitter or base respectively to be shielded according to whether the transistor is to be used with the base or emitter earthed.
Patent GB-854758-A (GB)
Title: Improvements in ground levelling, working, cultivating and like appliances
IPC: A01B59/06
Filed: 1957-06-26
Abstract: 854,758. Agricultural implements. LEGG, B. J. Sept. 1, 1958 [June 26, 1957], No. 20084/57. Class 6(1). An implement for ground levelling or working the soil comprises an implement frame A adjustably mounted in a coupling frame 1 so that the implement can be moved towards or from the coupling frame 1 which is attached to the lower hitch links 2 of a tractor. Bars 5 adjustably attached to the frame 1 by pins are slidable in brackets 6 on the implement frame 4 and are held in a selected position by pins. The rear of the frame 4 is coupled to the frame 1 by telescopic stay bars 7, and a chain 10 connects the frame 1 with the tractor to allow the implement to be raised. To adjustably limit the lowered position of the implement an arm 8 is pivotally mounted on the frame 1 and is connected by an adjustable link 9 to a stationary part of the tractor. When the implement is lowered the link 8 moves against the coupling frame 1 and forms a stop, limiting the downward movement of the implement. Specifications 780,863 and 854,759 are referred to.