baber/WOPTO huggingface dataset:
Patent GB-276377-A (GB)
Title: Improvements in and relating to electric driving arrangements, particularly adapted for vehicles
IPC: H02P9/00
Filed: 1927-08-23
Abstract: 276,377. British Thomson-Houston Co., Ltd., (Assignees of Krape, R. D.). Aug. 23, 1926, [Convention date]. Dynamos and motors combined for transmitting power.-A power system particularly adapted for self-propelled vehicles comprises a prime mover 10, with throttle control T, coupled to a generator 11 and exciter 12. The exciter is separately excited from a battery B and adapted (1) to charge the battery through a generator field winding 17<b>, (2) to excite the generator through a field winding 17<a> and (3) to drive an independent load consisting of blower motor or electrical equipment ventilator 30 and compressor motor 31 supplying the brakes. The. generator has a series commutating winding 27 and the exciter a differential winding 26 adapted to prevent overload upon the engine. The battery is automatically charged when the exciter volts are adequate to operate the voltage, coil 23 of a reverse -current relay controlling the charging circuit. The exciter field circuit is completed when the throttle lever T is advanced from the idling position, a switch 25 thereupon energizing a field contactor 21. The driving motors 13, 14 are adapted for series-parallel control by a controller 16 and a reversing controller 15, the former having a position E in which the generator may be fully excited so as to run the battery and auxiliary loads while the vehicle is standing. The circuits of the generator fields 17<a>, 17<b> each contain a high resistance 18<a>, 18<b> that the generator can only furnish a negligable voltage when the controller 16 is in the off or any intermediate position; when in any operative position these resistances are short-circuited at contacts 28, 29 or 28a, 29a or 34, 35. The mechanism is thus relieved of shocks. A disabled driving motor may be cut out by switching devices which comprise means for lifting the required pair of controller fingers 36 or 37 from the path of the drum. A lever 47, Fig. 2, pivoted at 48 on the contact bracket, carries a pin 49 which is normally locked in the position shown by a spring detent 50 on the lever engaging a notch in a plate 52. By depressing this lever the controller finger 44 is lifted and locked by the engagement of the detent with the edge of the plate 52. Specifications 5263/06 and 15199/13 are referred to.
Patent GB-276378-A (GB)
Title: Improved sifting or screening apparatus for the classification of ores and the like
IPC: B07B1/46
Filed: 1927-01-17
Abstract: 276,378. France, A. Jan. 18, 1926, [Convention date]. Sieves with compound motion. - In ore-classifying apparatus of the kind comprising an inclined shaking screen having different oscillating paths at different points of its length and in which the screen surface f is inclined at a steeper angle to the horizontal at the forward part than at the rear, the screen is so mounted that a gyratory movement is imparted to it at the feed end and and oscillating movement at the discharge end. As shown, the forward end of the screen is supported by links j and the rear end is actuated by a crank h. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction of screen in the form of a curved surface, and the arrangement of several screens of different mesh in superposed relation. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1500682-A (GB)
Title: Method of and means for verifying the output of a device indicating the flight position of a flying body
IPC: G01C25/00
Filed: 1970-05-07
Abstract: 1500682 Checking aircraft instruments MESSERSCHMITT-BOLKOW-BLOHM GmbH 7 May 1970 [17 July 1969] 22206/70 Heading G1N The readings of a position measuring device e.g. an inertial device carried on a missile or aircraft are checked against those of a second measuring device. The latter indicates each moment at which the angles of inclination of the missile or aircraft, in relation to its roll and pitch axes, are equal to zero and a comparison is made at these moments of the deviation between the measured and actual flight positions. The moments when the inclination angles are zero are calculated from an expression involving:- b 1  = acceleration along longitudinal axis b 2  = acceleration along transverse axis b3 = acceleration along vertical axis α = angle of drift of flying body g = gravitational constant The aircraft or missile is in a horizontal plane when Thus in the circuit shown acceleration along the longitudinal and transverse axes (b 1 , b 2 ) are measured by accelerometers B<SP>1</SP>, B<SP>2</SP>, amplified (V 1 , V 3 ), filtered (T 1 , T 3 ), squared (Q<SP>1</SP>, Q<SP>2</SP>) and added in amplifier V2 and passed to a circuit R which extracts the square root i.e. #b 1 <SP>2</SP> + b 2 <SP>2</SP> which is passed to a mixer M where it is multiplied by sin α derived from a Doppler radar device D. The output is fed to an amplifier V 4  where a signal -b 2  from an inverter I is added to produce a signal ( #b 1 <SP>2</SP> - b 2 <SP>2</SP>) sin α -b 2  (A). The vertical acceleration b 3  is measured by accelerometer B3, the signal being amplified (V5), filtered (T3) added to a signal of -g to give b 3  -g(B) and fed together with the first signal to a final amplifier V 7  and to a null indicator N, which indicates when the final signal A-B is zero i.e. the plane or missile is horizontal. The signal is also fed to a NOR gate G together with the yaw, pitch, and drift signals derived from inertial apparatus or Doppler radar. When all signals are zero (apart from drift) then the indicator N 2  indicates this, showing that the inertial apparatus is functioning properly.
Patent GB-1390242-A (GB)
Title: Contact materials
Inventor: SCHREINER H
IPC: H01H1/02
Filed: 1972-05-11
Abstract: 1390242 Alloys SIEMENS AG 11 May 1972 [18 May 1971] 22230/72 Heading C7A An alloy consists of (a) Co, Cu, Fe, Ni or Ti as a first metal; (b) at least one of Bi, Pb and Te as a  second metal; and (c) an auxiliary metal which is different from the first metal, is one or more of Ag, B, Be, C, Ce, Ge, La, Mg, Nb, Ni, Sb, Si, Sn, Ti and Zr and forms an eutectic with the first metal; wherein (i) 15-50% by volume of the alloy is a eutectic of the first and auxiliary metals; (ii) substantially all of the second metal is finely dispersed throughout the eutectic of which it constitutes up to 5% by weight; (iii) the rest of the alloy volume consisting of crystals, of a solid solution of not more than 5% of the second  metal in the first, embedded in the eutectic phase.
Patent GB-1531895-A (GB)
Title: Protective enclosure for telephone apparatus
IPC: H04M1/18
Filed: 1977-08-30
Abstract: 1531895 Telephone apparatus protection J B WINGATE 30 Aug 1977 [28 May 1976] 22230/76 Heading H4J Telephone apparatus, e.g. coin box 10 and handset 11, is protected by a metal casing including a front panel having an aperture 27 covered by a shutter 28 in the form of an armoured flexible band (29) Fig. 2 (not shown) mounted on rollers (30, 31) at the upper and lower limits of aperture 27. The handset 11 is mounted in a carrier having protective grilles 34, 35 giving audio access to the receiver and microphone. The flexible band (29) is counterbalanced so that the handset 11 can be brought to an appropriate height for use. A rigid backing plate (32) is secured to the front panel behind the front run of the flexible band (29). The telephone cradle switch 16 is operated by a link and lever system 37 operated by a foot pedal 39. Alternatively the cradle switch 16 may be operated by putting the handset carrier to its lowest position and by the user moving the carrier away from this position to bring the telephone into use. Apertures give access to the dialling unit 13 and coin slots 14, 15.
Patent GB-1467347-A (GB)
Title: Filter elements and filter assemblies with thermal seal
IPC: B01D29/11
Filed: 1974-05-20
Abstract: 1467347 Filter sealing PALL CORP 20 May 1974 [21 May 1973] 22317/74 Heading B1D In a filter for use at one temperature, filter elements are sealed together and or to the enclosing housing by abutting components made of different materials, which fit loosely together when the filter is assembled at one temperature but which seal tightly together by differential expansion at operating temperature. As shown four annular, pleated, sintered wire mesh filter elements abut axially. Their end caps 11, 12 are made of one type of stainless steel whose expansion coefficient is greater than that of a second stainless steel of which enclosing collars 35 and end fittings 13 and 21 are made. Housing cover 28 is made of the one type of steel to make a similar expansion seal with fitting 21, but fitting 13 remains loose in socket 5. Rod 16 and pin 33 facilitate assembly at ambient temperature. Components may screw together or fit bayonet-wise, and the invention is applicable to flat filter elements. Abutting component surfaces could be frusto-conical instead of cylindrical, with e.g. a 6 included angle. Various metal-metal, metal-plastics and plastics-plastics combinations are possible. Applications include filtering hot liquids and liquid gases, but filtration may be performed at ambient temperature if the filter is assembled hot or cold. The filter may include a differential pressure indicator and pressureoperated by-pass valve (not shown).
Patent GB-804113-A (GB)
Title: Improvements in and relating to the production of amines
Inventor: WARD STANLEY
Filed: 1955-08-04
Abstract: 4-Isopropylamino- and 4-sec.-butylamino-diphenylamine having anti-oxidant properties are prepared by a continuous process which comprises reacting diphenylamine substituted in the 4-position by an amino, nitro, or nitroso group with acetone or methyl ethyl ketone respectively and an excess of hydrogen in the liquid phase at a pressure of 30-300 atmospheres gauge and a temperature of 100-180 DEG C. in the presence of a pelleted copper-on-zinc oxide or copper-on-chromia catalyst formed under a pressure of at least 15 tons/sq. in., and in the presence of recycled reaction product (preferably present in at least 50 per cent of the total feed to the reaction).  The reaction mixture is preferably passed upwardly through a bed of catalyst pellets, and if the diameter of the reactor exceeds 2 inches, the mixture preferably contains at least 85 per cent of recycled material.  Normal operating conditions are: pressure below 100 atmospheres, temperature between 120 DEG  and 165 DEG  C., excess of ketone or use of an inert solvent, particularly lower aliphatic alcohols, and a space velocity up to 5 gram-molecules of diphenylamine per litre of bulk catalyst volume per hour.  In an example: 4-amino-diphenylamine is dissolved in methyl ethyl ketone-water azeotrope, the water layer separated, methyl ethyl ketone and recycled un distilled reaction product added to the organic layer and the mixture passed with hydrogen upwards over a heated pelleted copper chromite catalyst, yielding 4-sec.-butylaminodiphenylamine; 4 - isopropylamino - diphenylamine is similarly prepared.  The Provisional Specification further describes the preparation of 4-isopropylamino-diphenylamine from 4-nitrosodiphenylamine and acetone in the presence of hydrogen. Specification 760,315 is referred to.
Patent GB-1084812-A (GB)
Title: Suspension for sliding door
Inventor: PERRY JOHN LAWRENCE
IPC: E05D15/06
Filed: 1963-06-06
Abstract: 1,084,812. Sliding door hangers. DEANS & LIGHTALLOYS Ltd. June 3, 1964 [June 6, 1963], No. 22510/63. Heading E1J. A sliding door hanger comprises a C-section supporting track 12 and a hanger bracket 14 carrying door 10 and having a free running Vee-type roller 24 running along a lower radiused profile 20 of the track to provide point contact therebetween and a free running tensioning roller 30 resiliently urged as by spring 36 operatively connected to roller 24, against the upper radiused profile 22 of the track. The track profiles 20, 22 are radiused about a common centre. A contact wiper (not shown) may be provided on the leading edge of the hanger bracket to keep the track clear and a draught excluder 50 is carried on the top of the door panel.
Patent GB-136791-A (GB)
Title: An Improved Telephonic Arrangement for use by Firemen.
Inventor: BURDON WILLIAM MURRAY
IPC: A62C31/00
Filed: 1919-09-15
Abstract: 136,791. Burden, W. M. Sept. 15, 1919. Drawings to Specification. Direct-call systems for firemen. A. telephone located in a box at a fire-hydrant is connected with a telephone .similarly arranged at the nozzle end of a tire-hose by a cable inside the hose or by wires embedded in the hose. Connexion is made at the hose couplings through spring- pressed contacts connected with the wires and located in recesses in the hose coupling. A bell call is provided.
Patent GB-1093450-A (GB)
Title: Hydraulically operated actuating mechanism having a scoop tube control
IPC: F16D25/02
Filed: 1965-05-28
Abstract: 1,093,450. Friction clutches. TWIN DISC CLUTCH CO. May 28, 1965 [June 2, 1964], No. 22660/65. Heading F2C. A friction clutch C is actuated by centrifugally induced pressure in an apply chamber CA and a retract chamber CR formed by a stepped axially movable cylinder 20 co-operating with a stepped piston 21 fast on an output shaft 4. The liquid in the retract chamber CR is varied by an adjustable scoop tube T in order to vary the clutch engaging pressure. Both chambers are supplied by liquid through a port 24 and passages in the output shaft at a relatively low pressure sufficient to lightly engage the clutch.
Patent GB-407257-A (GB)
Title: Improvements in or relating to braking devices
IPC: F16D65/06
Filed: 1933-08-15
Abstract: 407,257. Brake shoes. KOMAI, S., 71, Date-cho, Shibuya-ku, Tokio. Aug. 15, 1933, No. 22797. Convention date, Aug. 27, 1932. [Class 103 (i).] Brake shoes of cast iron or other metallic material have a series of perforations or slots 12 that extend from the friction face 13 to the back of the shoe and substantially across its width and serve to cool the shoe and to discharge powdered material formed by wear at the friction surface. The slots may be inclined to the side edges of the shoe and also to the friction surface so that in the latter case they extend downwardly when the shoe is in position to facilitate the discharge of the powdered material.
Patent GB-366508-A (GB)
Title: An improved valve gear with variable cam face adjustable during operation
IPC: F01L31/16
Filed: 1930-07-29
Abstract: 366,508. Cam gearing. JENDRUSIK, A., Rembertow, near Warsaw. July 29, 1930, No. 22888. Convention date, Jan. 29, 1929. [Class 80 (iii).] A gear for a steam locomotive comprises a rotary cam with variable face which is adjustable during the operation of the engine both in the forward and reverse directions of working. Cam discs 2, 3 with cams thereon are arranged upon a shaft 1 and the centre cam can be advanced, the adjacent cams being advanced in step so that the period during which the roller 4 controlling the opening of the valve 5 is operated is increased. Various means are described for effecting the adjustment. The middle disc Fig. 3, is integral with a screwed sleeve 6 which engages two longitudinal bars with helical teeth which are connected to an adjustable control sleeve 15. The various discs are provided with arcuate slots 8, the adjacent slots housing helical springs 10, Fig. 7. The end discs carry sleeves, 11, Fig. 18, which surround the valve gear rotary shaft 1 and the helically-toothed bars 16 slidable therein. These bars are secured to the shaft by keys 19. On adjustment the bars 16 cause the centre disc to rotate relative to the end discs and the intermediate discs take up step-like intermediate positions. The valve opening is thus prolonged. In a modification, a single helical spring passes through adjacent holes in the discs. In a further modification, the central cam is arranged upon a broad hollow cylinder which dispenses with the use of separate discs. Helical springs over which the roller runs, connect the central cam with the cam discs carrying the sleeves 11. The central disc may be rotated by toothed gearing operated through screw-and-nut mechanism by the sleeve 15. A construction of epicyclic gearing suitable for effecting adjustment is described The Specification as open to inspection under Sect. 91 (3) (a) comprises modified gears. In one gear, a rotary central shaft with a parallelogram-shaped cam thereon is surrounded by a longitudinally-movable sleeve with a helical slot therein engaging the cam. Additional cam surfaces are arranged on the sleeve each extending 180‹ for forward and reverse action. The roller engages the central-shaft cam and one of the sleeve cams to operate the valve. In a further modification, oppositely-arranged sleeves with helically-shaped cams are used to operate the roller. These are screwed on the rotary shaft and are longitudinally adjustable. Further constructions are described wherein flat band springs associated with rotary adjustable cams are provided to form the variable faces of the cams. This subject-matter does not appear in the Specification as accepted.
Patent GB-533293-A (GB)
Title: Improvements relating to switch operating gear for electric machinery for use in mines and other places where there is dust, for example electric coal and stone drills
IPC: H01H51/28
Filed: 1939-08-08
Abstract: 533,293. Hand actuating devices for switches. BRITISH ENGINES, Ltd., and LAMB, H. T. Aug. 8, 1939, No. 22896. [Class 38 (v)] The operating member 7 of a switch for an electric drill &c. is mounted in a tube 5 enclosed in rubber or like material which is pressed, e.g. by a lever 14, when it is desired to actuate the switch. The Figure shows a usual type of drill with two handles 2 and the member 7 is mounted in the tube 5 in one of these handles .and bears on a rod 9 engaging the switch 10. The rubber sheath fits closely round the tube 5.at the left and has a hollowed out more flexible portion 12. on the right.
Patent GB-945334-A (GB)
Title: Silver halide photographic emulsions
Inventor: BARR JAMES
IPC: G03C1/015
Filed: 1961-06-23
Abstract: 945,334. Photographic emulsions. ILFORD Ltd. May 31, 1962 [June 23, 1961], No. 22905/61. Heading G2C. Photographic emulsions are prepared by adding to a colloid dispersion of silver halide in which the colloid is gelatin, polyvinyl alcohol, polyvinyl pyrrolidone or a water-soluble polyoxyethylene, a di-alkali metal salt of a component of the formula wherein one of the groups R 1  and R 4  is hydrogen and the other is hydroxyl and R 2  and R 3  are hydrogens, alkyl groups or together complete a benz ring, acidifying the mixture to a pH of 4.2 or less, separating the precipitate so formed and redispersing it in a water-soluble colloid binder such as gelatin or polyvinyl alcohol. Reference is made to the use of the disodium salts of 5; 5<SP>1</SP>-methylene disalicylic acid, 5, 5<SP>1</SP>-methylene-di(2-hydroxy-3- methyl benzoic acid) and 1, 1<SP>1</SP>-methylene-di(2- hydroxy-3-naphthoic acid). The use of salts of acetyl salicylic acid, isophthalic acid, 3-hydroxyp-toluic acid or 2-hydroxy-m-toluic acid is stated to be unsuitable.
Patent GB-1432540-A (GB)
Title: Process for the preparation of cyclopropane derivatives
IPC: C07C325/00
Filed: 1972-05-16
Abstract: 1432540 Process for the preparation of cyclopropane derivatives SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 May 1973 [16 May 1972] 22911/72 Heading C2C The invention comprises a process for the preparation of gem-dihalocyclopropane derivatives by contacting an aqueous phase containing an alkali metal hydroxide and an organic phase containing both a haloform and an ethylenically unsaturated compound, which reacts with dihalomethylenes generated in situ to form gem-dihalocyclopropanes, said process being effected in the presence of (a) a quaternary onium compound of general Formula I in which X represents P, As or Sb, or if the unsaturated compound is an N-substituted carboxamide or a tertiary alkyl ester of an ethylenically unsaturated carboxylic acid X may also represent N, Y represents OH- or another anion and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> or R<SP>4</SP> each eparately represent hydrocarbyl groups with the proviso that (a) R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> or R<SP>4</SP> are not simultaneously aromatic groups and (b) when three of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are aromatic groups Y is I- and/or (b) a quaternary anium compound of general Formula II in which R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> each represent a (cyclo)alkyl group and Y- is OH- or another anion, and/or (c) a tri(cyclo)alkylonium compound of general Formula III in which R<SP>8</SP>, R<SP>9</SP> and R<SP>10</SP> each separately represent a (cyclo)alkyl group, Z represents an S, Se or Te atom, and Y- is OH- or another anion as a catalyst for the in situ generation of a dihalomethylene. The invention also comprises the compound N - 1 - adamantyl - 2,2 - dichloro - 3,3 - dimethylcyclopropanecarboxamide. Reference has been directed by the Comptroller to Specification 1,227,144
Patent GB-1377313-A (GB)
Title: Process for purifying phenylalanine derivatives
IPC: A23L27/30
Filed: 1973-05-14
Abstract: 1377313 Alpha-L-aspartyl-L-phenylalanine alkyl esters AJINOMOTO CO Inc 14 May 1973 [25 May 1972] 22924/73 Heading C2C Alpha-L-aspartyl-L-phenylalanine C 1-4  alkyl esters contaminated at least with an alpha-L- aspartyl-alpha-L-aspartyl-L-phenylalanine C 1-4  alkyl ester are purified by contacting an aqueous solution of the contaminated ester at pH of 4 to 6 with a strongly basic anion exchange resin in weak organic acid salt form, and separating the contacted solution from the resin. The resin is preferably in the form of its acetic or formic acid salt and the preformed resin is a polystyrene having quaternary ammonium radicals.
Patent GB-442595-A (GB)
Title: Improvements in and relating to constructional toys
IPC: A63H33/12
Filed: 1934-08-08
Abstract: 442,595. Chains. HAMERSCHLAG, G., 28, Wilhelm Exnerstrasse, Vienna. Aug. 8, 1934, No. 22946. [Class 24] [See also Group XV] A chain is formed of flat elements 31 and 32, Figs. 2 and 3, of cardboard, celluloid, vulcanized fibre, plywood or sheet metal loosely connected together by hollow rivets 33 having rods 34 movably inserted in them.
Patent GB-1037498-A (GB)
Title: Light transmitting filaments
Inventor: BREEN ALVIN LEONARD
IPC: B29C48/05
Filed: 1965-05-31
Abstract: Fibres consisting of polystyrene or a polymer comprising at least 70% by weight of units derived from an alkyl methacrylate wherein the alkyl group contains 1 to 6 carbon atoms, are coated with a polymer which comprises at least 30% by weight of fluorine or at least 70% by weight of units derived from an alkyl methacrylate wherein the alkyl group contains 1 to 6 carbon atoms, by passing the fibre through a solution of the polymer. The alkylmethacrylate polymer may be a homopolymer or a copolymer with, for example 2-ethylhexylacrylate. Suitable polymers are listed.
Patent GB-389730-A (GB)
Title: Improvements in refrigerator and like heat-insulated cabinets
IPC: F25D23/08
Filed: 1932-08-17
Abstract: 389,730. Refrigerators. BRIGGS MANUFACTURING CO., 11631, Mack Avenue, Detroit, Michigan, U.S.A.- (Assignees of Marshall, W. ; 3810, Virginia Park, Detroit, Michigan, U.S.A.) Aug. 17, 1932, No. 23078. Convention date, Oct. 19, 1931. [Class 29.] In a refrigerator cabinet formed of inner and outer metal walls separated by heat-insulating material the space between the edges of the walls around the door opening is covered by a metal frame 22 formed as a unit or of separate strips. A rubber gasket 24 is inserted between the edge of one of the walls and the frame and another 18 between the cabinet and the outer edge of the door.