baber/WOPTO huggingface dataset:
Patent GB-448825-A (GB)
Title: Improvements in or relating to apparatus for the production, reception, conduction, transmission, reproduction and/or location of sound
IPC: H04R1/32
Filed: 1934-12-10
Abstract: 448,825. Making loud-speakers, speaking-tubes, &c. STEUART, D. S. S., St. Mark's House, St. Mark's Square, and HAMILTON & BRANDON, N.B.M. DOUGLASHAMILTON, DUCHESS OF, 25, St. Edmund's Terrace, Regent's Park, both in London. Dec. 10, 1934, No. 34269 /35. Divided out of 448,864, [Group XXXVIII]. Drawings to Specification. [Class 83 (ii)] [See also Groups XXXVIII and .XXXIX] Sound-conducting apparatus, such as a telephone mouthpiece, a speaking-trumpet, or an acoustic horn has surfaces constituted by a hard superficial layer or coating consisting of an aluminium compound formed on surfaces of aluminium or aluminium alloy. The layer is preferably of aluminium oxide and may be formed by anodic treatment. The article may be produced by spinning and in the case of a device constructed of several discrete parts the production of the layer may be effected before or after the assembly of the component parts. The Specification described the application of the invention to a sound conducting device as described in Specification 448,864.
Patent GB-1272792-A (GB)
Title: Internally meshing gear pumps
IPC: F04C2/08
Filed: 1969-07-08
Abstract: 1,272,792. Internally-meshing gear pumps. DANFOSS A.S. July 8, 1969 [July 12, 1968], No.34322/69. Heading F1F. In a pump of the n and n + 1 tooth type comprising a housing ring 3, Fig. 1, within which an internally-toothed gear 9 rotates and the axis of an externally-toothed gear 7 is arranged to orbit, the housing ring 3 is located with respect to the housing body 1 through which a pump shaft 2 extends, by a centring device 14 and screws 5 passing with clearance through bores 6 in the housing ring and a cover-plate 4. The centring device comprises a sphere 17 forced at least half way but not completely into a bore 15 and a bore 16 of slightly smaller diameter than the bore 15. The centring device is located on a radius of the ring which lies at right angles to a line joining the axes of the two gears. A pair of similar centring devices may also be fitted to locate the cover-plate 4 with respect to the housing ring 3.
Patent GB-1443957-A (GB)
Title: Solenoid devices
IPC: H01F7/16
Filed: 1973-07-19
Abstract: 1443957 Springs PLESSEY CO Ltd 19 July 1974 [19 July 1973] 34521/73 Heading F2S [Also in Division H1] In an electromagnetic solenoid (Division H1P) a plunger armature is located and its motion linearized by two resilient spoked diaphragms mounted one behind the other to centralize the plunger relative to a surrounding coil while permitting axial deflection.
Patent GB-1241385-A (GB)
Title: Process for the production of aromatic polybenzimidazoles
Inventor: CHENEVEY EDWARD CLARENCE
IPC: C08G73/18
Filed: 1969-07-09
Abstract: 1,241,385. Aromatic polybenzimidazoles. CELANESE CORP. 9 July, 1969, No. 34609/69. Heading C3R. Aromatic polybenzimidazoles are obtained by heating monomers or monomer mixtures at temperatures above 200‹ C. under oxygen-free conditions at atmospheric or higher pressures while continuously passing nitrogen through the reaction zone at a rate of from 1% to 200% of the volume of the reaction zone per minute. The reaction may be carried out in one stage or in two stages, the product from the first stage being powdered before being heated in the second stage. In an example, poly-2,2<SP>1</SP>-(mphenylene) - 5,5<SP>1</SP> - bibenzimidazole is prepared from 3,3<SP>1</SP> - diaminobenzidine and diphenylisophthalate. Other starting materials and products are mentioned.
Patent GB-1095210-A (GB)
Title: A process for the simultaneous determination of glucose and fructose
IPC: C12Q1/54
Filed: 1966-08-02
Abstract: A process for the simultaneous determination of glucose and fructose in aqueous solutions at a temperature above 20 DEG  C. wherein the angle of optical rotation and refractive index of such solutions are measured and the concentrations of the components calculated therefrom in known manner.  The measurements may be carried out at a temperature which is the same as or higher than the temperature of the solutions to be tested, using a polarimeter and a refractometer, both having flow-through cuvettes.  Such measurements may be evaluated as a nomogram or taken off in the form of proportional voltages which are fed into an automatic computer which can either control a whole plant employed in the separation of glucose and fructose or reproduce a diagram on a multi-colour recording device. The chromatographic separation on an ion exchange resin of invert sugar solutions using the above process to detect the glucose and fructose fractions is described.
Patent GB-799212-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: FORTESCUE PETER
IPC: G21D5/06
Filed: 1955-12-03
Abstract: 799,212. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Dec. 3, 1956 [Dec. 3, 1955], No. 34692/55. Class 39(4). Cooling gas is circulated through the core 11 of a reactor and through a heat exchanger 13 by a compressor 14, driven by a gas turbine 12 in the flow of coolant gas, all within the reactor pressure vessel 7 and shield 6. Helium at a pressure of 10 atmospheres may be used to cool a solid fuel reactor, alternatively the reactor may have a gaseous fuel. The turbine-compressor unit may comprise a pair of close coupled discs or a single bladed disc with blade roots acting as the turbine and blade tips as the compressor. The unit is started by electric, hydraulic or pneumatic starter. An inspection door 9 provides access to the unit and enables it to be removed for maintenance. The secondary circuit of the heat exchanger may be coupled to an open or closed circuit gas turbine or to a steam cycle.
Patent GB-462450-A (GB)
Title: Improvements relating to electric batteries
IPC: H01M12/06
Filed: 1936-12-18
Abstract: 462,450. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. (Accumulatoren-Fabrik Akt.-Ges.) Dec. 18, 1936, No. 34812. [Class 53] The upper surface of the electrode e of a cell which is depolarized by atmospheric oxygen is protected against contact with the electrolyte by a liquidtight chamber b which is open to the air through tubes r. The chamber and tubes may be made of glass, paraffined cardboard or of a pressed material. They may alternatively be made in one piece with the porous envelope of the electrode e in which case the chamber and tubes are subsequently coated to make them waterproof. In this construction the active material of the electrode is introduced through the open lower end of the envelope which is then sealed.
Patent GB-207398-A (GB)
Title: Improvements in or relating to curbs, fenders, and the like
IPC: A47C3/16
Filed: 1922-12-22
Abstract: 207,398. Griffiths, J. Dec. 22, 1922. Curbs and fenders. - In a curb or fender of the kind having a seat at each end the curb 1, which may be adjust. able in length as shown, is of the ordinary angle or U-shaped type and the seats 5 are formed on their undersides with channels 6 adapted to take over the rearwardly extending arms of the curb, this arrangement permitting the curb and seats to be used separately. The seats 5 may be provided with lifting handles 8 and detachable upholstered tops 9 and may contain removable coal-boxes 7, Fig. 2.
Patent GB-934439-A (GB)
Title: Improvements in lifting devices for attachment to tractors
IPC: A01D87/12
Filed: 1959-10-15
Abstract: 934,439. Tractor load handling attachments. D. C. ROLLINGS, and R. F. BRIDGLAND. Jan. 16, 1961 [Oct. 15, 1959], No.34923/59. Classes 78 (3) and 78 (4). [Also in Group XXXI] A lifting device, Fig. 1 (see also Group XXXI) attached to the lower lift links 1 of a tractor comprises a transverse shaft 3 which is rotated by linkage attached to the tractor through yoke 16 when the lift links are raised. A hay bale lifter, Fig. 4, is pivotally attached by its arms 101 to shaft 3 by pins 102 passing through holes 20 in the shaft and comprises, pivoted to the arms 101 a support head 105 pivotally supporting a frame comprising plate 107 and arms 108 joined by strut 109. Bale engaging arms 111 are pivoted to the arms 108 and interconnected by links 117 and 114 and spring 116. Pivoted to plate 107 is a bale detector 118 with a detent 122 which engages block 123 on rod 128, Fig. 5. In operation to engage a bale the device is lowered with block 123 held in place by detent 122 and with the links 114 and arms 111 held apart with spring 116 tensioned by the toggle links 126. When detector 118 contacts a bale the detent releases block 123 allowing spring 116 to close the arms 111 on to the bale. The bale is then lifted up and past the vertical position of the arms and links when the arms 108 pivot relative to support head 105 about pivots 106 and screw 130 on head 105 pushes rod 128 and block 123 so that the toggle links 126 push the arms 111 apart releasing the bale, which is then supported by the bale detector arms 119 from which it can be removed, and tensioning spring 116. When the device is returned to the starting position block 123 will again be held by detent 122. One of the pivoted arms 101 is connected by a link 103, Fig. 4, to the tractor body so that as the device is rotated the arms and device are pulled towards the centre line of the tractor so that the bale may be conveniently placed on a trailer drawn behind the tractor.
Patent GB-945197-A (GB)
Title: Improved cooling for turbo-generators
IPC: H02K3/22
Filed: 1961-09-29
Abstract: 945,197. Cooling dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 29, 1961 [Oct. 28, 1960], No. 35086/61. Addition to 805,878. Heading H2A. In the turbo-generator claimed in Claim 1 of the parent Specification, each of the other openings 9 in the cylindrical shield 5 through which the ventilating gas is led into substantially axial ducts 10 on the inside of the shield has substantially the same shape and size as a peripheral section through the corresponding duct, and the shield is either undivided or composed of a number of ring sectors 3 each having a plurality of ducts, the shield and ducts or sectors and corresponding ducts being manufactured in one piece, e.g. by moulding or punching.
Patent GB-845867-A (GB)
Title: Improvements in or relating to hydraulic operating systems
Inventor: ORLOFF GEORGE
IPC: F15B11/16
Filed: 1955-12-07
Abstract: 845,867. Reciprocating pumps. BRITISH MESSIER Ltd. Dec. 4, 1956 [Dec. 7, 1955], No. 35185/55. Class 102(1). [Also in Group XXIX] In a hydraulic system in which a variable delivery pump constantly supplies liquid to a circuit feeding intermittently operating hydraulic units and also supplies liquid when required to one or more additional services, each of which can be brought into operation by means of its own selector valve, means, are provided for varying the delivery of the pump in accordance with the pressure fluid requirements of the system. As shown in Fig. 1, a swash-plate pump 11 (of which only one cylinder 14 is shown) supplies liquid through a line 19 to a hydraulic system, line 19 also being connected to additional services 21, 22, 23 through branch lines controlled by selector valves 27, 28, 29. Line 19 contains a restriction 20 and has restrictions 45, 48, 49 controlled by valves 36, 37, 38 and connected in parallel with restriction 20. When selector valves 27, 28, 29 are closed, valves 36, 37, 38 are also closed, and the pump output passes through restriction 20. The pressure drop across this restriction is applied to a servo motor piston 52 which controls the position of spill control rings 18 associated with the pump cylinders. Rings 18 are moved to the left to give minimum output from the pump. Operation of a selector valve 27, 28 or 29 opens the associated valve 36, 37 or 38 and the pump discharge passes through the associated restriction in addition to restriction 20. The pressure drop thus decreases and the servo piston 52 is moved to the right to increase the pump output. In a modification, Fig. 2, a servo piston 131 controlling the output of a swash-plate pump is subject to the pressure drop across parallel connected restrictions 125, 126, 127, 128; restrictions 126, 127, 128 being disposed in lines controlled by valves 144, 145, 146, controlled in turn by selector valves 141, 142, 143, controlling the operation of the additional services. The servo piston 131 controls the position of spill control rings 119 co-operating with ports formed in the pump pistons. In addition to the unloading of the pump when none of the additional services are in operation, an over balance control valve 165 is provided which moves the servo piston to its unloading position when the pressure downstream of the restrictions is excessive.
Patent GB-1214363-A (GB)
Title: Circuit interrupter
IPC: H01H73/04
Filed: 1968-07-24
Abstract: 1,214,363. Automatic circuit breakers. TERASAKI DENKI SANGYO K.K. 24 July, 1968 [24 July, 1967 (2)], No. 35290/68. Heading H1N. A current limiting automatic circuit breaker of the kind in which the contacts are opened by electrodynamic repulsion has a movable contact unit 4 coupled to a conventional operating mechanism 25 and a fixed contact unit 5. Each unit comprises a pair of pivoted arms 5l, 5s and 4l, 4s, each arm being pivoted at one end and carrying a contact 6, 13 at the other. The movable contact arms 4s, 4l have a common pivot 10 and are connected by a flexible conductor 12 to form a bridging contact while the arms 5s, 5l are connected through flexible conductors 20s, 201 to terminal strips 22s, 201 respectively, the connections being crossed so that the current flowing in the strips 22 is in the same direction as in the adjacent fixed contacts 5; this provides attraction which reinforces the electrodynamic repulsion between the parallel arms. Contact pressure is provided by springs 19s, 19l, 8, the spring 8 being arranged to pass overcentre of pivot 10 to retain . the contacts open after electrodynamic repulsion. The contact unit 4 is reset to the aligned condition by moving an operating handle 26 to off position when projections 3a of the casing engage and reset the arms 48, 4l. Each pair of contacts 6, 13 is located in an arc-chute 24. The operating mechanism includes an overcentre spring toggle normally supported by a latched lever 41; its latch 44 is itself latched by a common trip bar 46 which is tilted to release the mechanism, or normal overloads, by a bimetal 51 (through adjusting screw 54) or an electromagnet 57 with armature assembly 59 and 60. The position of armature 59 and 60 is adjustable by a cam 64 and it carries an indicator plate 62 which indicates the tripped condition through a window 2a.
Patent GB-790370-A (GB)
Title: Manufacture of silicone rubber
IPC: C08L83/04
Filed: 1954-12-07
Abstract: The compositions of the present Specification are substantially identical to those of the parent Specification except that all the siloxane gums used have penetration values of less than 100 mm. per minute by a modification of ASTM D-217-32, which is described.
Patent GB-775637-A (GB)
Title: Fastener for securing a pair of members together
IPC: F16B2/06
Filed: 1955-12-09
Abstract: 775,637. Clamps. DAWES, G. W. Dec. 9, 1955, No. 35470/55. Class 44. A fastener for securing a pair of members together comprises a web 1, Fig. 1, having flanges 2, 3 extending from the web 1 in opposite directions, the flange 2 being provided with an outwardly projecting tongue 6 and with means 7 whereby the flange 2 may be clamped to one member, the tongue and web extending in opposite directions from the flange 2 and the tongue 6 having a width substantially less than that of the web and the flanges. As shown in Fig. 3, a back panel 11, having an elongated slot 12, is secured to a fillet 10 depending from the top wall 9 of a cabinet 8 (e.g. a radio cabinet) by means of the fastener flange 3 engaging the side 16 of the fillet and the tongue 6 engaging in the slot. The fastener is clamped in position by a screw 13 passing through the slot 12 and engaging in a tapped hole 7 in the flange 2. The tongue 6 has sliding fit in the slot 12 and head 14 of the screw engages a washer 15 which extends to either side of the slot to engage the panel 11.
Patent GB-493411-A (GB)
Title: Process and means for displacing the chain-guides of fabricstretching machines
IPC: D06C3/00
Filed: 1937-12-22
Abstract: 493,411. Control of two motors. JAHR, W. Dec. 22, 1937, Nos. 35494 and 35495. Convention dates, Jan. 9 and June 11. [Class 38 (iii)] [Also in Group VIII] In a fabric-tentering machine in which the chain frames 5 are adjusted to and from each other to suit the width of the fabric, the adjusting screw 3 and nut 4 are normally driven at the same speed by motors M<1>, M<2>. When the feeler b is displaced the circular tube g containing mercury k and resistance wires h, i in the field circuits of the two motors is tilted to increase the speed of one motor and decrease that of the other by amounts proportional to the displacement of the feeler b. Photo electric cells or variable condensers may be used in place of the variable resistance tube g.
Patent GB-177225-A (GB)
Title: Improvements in or relating to air compressors
IPC: F04B27/053
Filed: 1920-12-17
Abstract: 177,225. Reavell, W., and Reavell & Co., Ltd. Dec. 17, 1920. Bushes and linings. - A bearing-bush for the feet of the connecting-rod of a radial-cylinder compressor is formed of steel thinly coated with white metal 25, and the retaining rings 26 are similarly lined.
Patent GB-643145-A (GB)
Title: Improvements in duplicating machines
IPC: B41L11/00
Filed: 1946-11-30
Abstract: 643,145. Copying documents. FORD, R. M. Nov. 30, 1946, No. 35570. Drawings to Specification. [Class 100 (ii)] A rotary mirror script duplicator of the kind in which a main sheet-feed tray is used when the whole of the matter of a master sheet is to be reproduced and a second tray or trays for line or other part reproduction is constructed with means for imparting a step-by-step motion to a second tray which is controlled by rotation of the printing cylinder. The invention is described in terms substantially identical with that of Specification 643,142 and covers mechanism for producing the step-by-step movement comprising a notched bar fixed to the machine frame and arranged parallel to the cylinder, a movable notched bar slidably mounted on the fixed notched bar, stops for limiting the sliding movement of the movable notched bar, which bar is spring-loaded in one direction, means acting on the tray for moving it in the opposite direction, a movable finger on the tray alternately engaging a notch in the fixed bar and a notch in the moving bar, and means operated by the cylinder for operating said movable finger.
Patent GB-1151207-A (GB)
Title: Production of Heat-Resistant Polyimides
Inventor: VOLLMERT BRUNO
IPC: C08G73/10
Filed: 1966-08-09
Abstract: 1,151,207. Polyimide coatings. BADISCHE ANILIN- & SODA - FABRIK A.G. 9 Aug., 1966 [10 Aug., 1965], No. 35587/66. Heading B2K [Also in Division C3] Coatings may be produced from a polyimide prepared from a compound of formula: and an aromatic primary diamine. R 1 , R 4 , R 7  and R 8  may be H, halogen, hydrocarbon, alkyl, hydroxyl or esterified hydroxyl. In examples glass and steel are coated with polymers prepared from bicyclo - 2,2,2 - octene - 7 - tetracarboxylic acid, and 4,4' - diamino - diphenylmethane (1) and 7, 8 - diphenyibi - cyclo - 2,2,2 - octene - 7 - tetracarboxylic acid and 4,4' - diamino - diphenylether (5). Cresol is used as solvent.
Patent GB-1193706-A (GB)
Title: Spool Box
Inventor: POSSO PIERRE ANDRE LUDOVIC
IPC: G11B23/027
Filed: 1967-08-04
Abstract: 1,193,706. Spool cases. P. A. L. POSSO. 4 Aug., 1967 [30 June, 1967], No. 35979/67. Addition to 1,162,357. Heading B8P. [Also in Divisions E2 and G2] As an improvement in the central locking device for a spool case disclosed in the parent Specification, the support disc 18 of the sectors 9 is an integral part of the annular base 11 of the seating of the control member 13 in the lid 2, and is connected to this base by radial ridges 25 extending between the sectors. The sectors are forced radially outwards by spiral cams on a shaft 14, whereby a toroidal ring 8 bears against a conical seating (27), Fig. 3 (not shown), of the base (1), a flange extension (28) of the shaft (14) limiting movement of member (13). Lugs on a disc (12) engage ridges 25 to limit rotation of the member (13), and a skirting (32) is recessed to reveal " open " and " closed " markings on lid (2).
Patent GB-899640-A (GB)
Title: A hysteresis type synchronous electric motor
Inventor: GABRIEL GUSTAVE OTTO
IPC: H02K19/08
Filed: 1958-11-10
Abstract: 899,640. Electric motors. DALE PRODUCTS Inc. Nov. 10, 1958, No. 36037/58. Class 35. A hysteresis type synchronous motor has a stator which includes a laminated magnetic ring 16 surrounding and having a pressure engagement with the outer ends of the spokes of a laminated magnetic spider, and the spider comprises a plurality of laminations 15 each having radially extending uniform width spoke portions 19 integrally connected at their inner ends by a continuous web 27 defining a rotor receiving cylindrical bore B, together with a plurality of uniform width rectangular form individual spoke laminations 88 interspersed between the spoke portions 19 and extending from the rotor bore B to the radially outer extremities of the portions 19 so that the spokes are formed solidly of contiguous laminations but the webs are spaced apart. The laminations 88 may alternate with the spider laminations 15 or, Fig. 10, be grouped at the centre of the stack. From a sheet 17, Fig. 5, which preferably is grain oriented in the direction 18, the laminations 15, 16 are so punched that the spoke portion radius R1 is greater than the ring bore radius R2 and during assembly the laminations 15, 16 are relatively displaced by 22¢ degrees and fitted together by pressing, shrinking after heating, or cooling. In Fig. 3, the windings 1, 3, 5, 7 and 2, 4, 6, 8, of differing turns and wire gauge, are connected together in two series groups acting respectively as main windings and auxiliary windings connectable via a condenser to a 1 pH supply, or alternatively the two groups may be connected to respective phases of a 2 pH supply; a 3 pH embodiment is also disclosed. The rotor comprises a plurality of discs 66 of Alnico or a powdered metal in a binder secured by a thermo-setting resin mixture 67 to the shaft 10 which may be knurled at 68.