baber/WOPTO huggingface dataset:
Patent GB-157984-A (GB)
Title: A process of recovering metallic constituents from a mixture thereof
IPC: C22B25/06
Filed: 1921-01-12
Abstract: Metalliferous materials such as mattes, particularly white metal mattes, tin ore, tin slag, slag from solder-melting, or mixtures of ore, matte, or slags with other tin-bearing material are heated with a bisulphate such as nitre cake and with a reducing agent such as carbon, so as to convert all the metals into sulphides.  The heating may be effected in a reverberatory furnace.  The product is leached with water.  The insoluble portion contains the copper and lead as sulphides and is practically a copper matte.  Tin and antimony are dissolved as thiostannate and thioantimonate.  The solution may be electrolized to obtain metallic antimony, the tin being then obtained as sulphide by acidulating the solution and may be roasted to oxide and reduced to metal.  Alternatively the mixed solution may be treated with an acid and the antimony and tin sulphides roasted to oxides and then reduced.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of a "sulphatizing material such as nitre cake."  This subject-matter does not appear in the Specification as accepted.
Patent GB-539390-A (GB)
Title: Improvements in retraction and extension arrangements for aircraft components and accessories
IPC: B64C25/20
Filed: 1940-02-01
Abstract: 539,390. Retractable aircraft undercarriages. DOWTY EQUIPMENT, Ltd., (formerly AIRCRAFT COMPONENTS, Ltd.), and BURKE, P. W. Feb. 1, 1940. Nos. 2007 and 2460. [Class 4] A retractable aircraft component such as an undercarriage leg is retractable against resilient resistance, the energy so accumulated being available for extending the component upon the release of locking means, and for ensuring the engagement of means for locking the component in its extended position. A tail wheel mounting is shown comprising a pillar 3 pivoted to the machine at 4 and provided with a sliding cap 9 pressed upwards by a spring 15 to cause engagement of a projection 13 with a recess in the aircraft frame to act as a downlock. A hydraulic jack 5 is connected between a lug 8 on the cap 9 and a fixed pivot 4a. When the jack is contracted the projection 13 is first withdrawn and simultaneously a pin 10 on the cap moves down the straight part of a cam slot 11 formed in a fixed plate 12. Further contraction of the jack causes the leg to swing about the pivot 4 and the pin 10 to move along the slot 11 which is involute to the pivot 4 so that the spring 15 is compressed by inward movement of the cap, the energy so stored being sufficient to extend the pillar when the jack is opened to exhaust. A trailing wheel is carried by a pivoted arm 18 controlled by a shock absorber 22 connected to a sleeve 21 rotatable in the pillar 3, the sleeve 21 having a cam 25 co-operating with a cam 26 which can slide without rotation against the thrust of a spring 27 so as to control deviations of the wheel from the central plane. According to the first Provisional Specification the spring 15 may be compressed by a link connected to a crank offset from the retraction pivot, the link passing through the dead centre position during the course of retraction so that during its later stages, retraction is assisted by the spring.
Patent GB-1042471-A (GB)
Title: Penta-azaindenes, their production and use in photographic emulsions
Inventor: FRY DOUGLAS JAMES
IPC: C07D487/04
Filed: 1963-01-16
Abstract: The invention comprises compounds of the general formula <FORM:1042471/C2/1> wherein R1 is a hydrogen atom or an alkyl, aryl, aralkyl, mercapto, alkythio or aralkythio group, and R2 is a hydrogen atom or an alkyl, aryl, aralkyl or alkoxycarbonyl group, the compound in which, simultaneously, R1 is a hydrogen atom and R2 is a methyl group being disclaimed.  The compounds of the above general formula, including the compound in which R1 is a hydrogen atom and R2 is a methyl group may be prepared by the following methods:  (a) reacting a compound of the general formula <FORM:1042471/C2/2> wherein R2 is as defined above, with CS2 in alcoholic solution in the presence of a strong organic base until H2S is no longer evolved to produce a compound in which R1 is mercapto; (b) reacting a mercapto compound obtainable by method (a) with an alkylating or aralkylating agent in neutral or alkaline solution to produce a compound in which R1 is alkylthio or aralkylthio; (c) reacting a compound of the general formula <FORM:1042471/C2/3> wherein R1 is as defined above, with a compound of the general formula <FORM:1042471/C2/4> wherein R2 is as defined above and R3 is a hydrogen atom or an alkyl group; (d) treating a compound obtainable by methods (a) or (b) with Raney nickel to produce a compound in which R1 is hydrogen; (e) by ring closure of compounds of the general formula <FORM:1042471/C2/5> wherein R2 is as defined above, to produce a compound in which R1 is a hydrogen atom or an alkyl, aryl or aralkyl group.  Examples are given.  3,4-Diamino-1,2,4-triazole is prepared from N,N1-diamino-guanidine hydriodide and formic acid. 3-Acethydrazino-5-hydroxy-6-methyl-1,2,4-triazine is prepared by reaction between (a) 3-methylthio-5-hydroxy-6-methyl-1,2,4-triazine and acethydrazide, or (b) 3-hydrazino-5-hydroxy-6-methyl-1,2,4-triazine and glacial acetic acid.
Patent GB-220231-A (GB)
Title: Improvements in or relating to sluice gates
IPC: E02B7/26
Filed: 1924-01-25
Abstract: 220,231. Ransomes & Rapier, Ltd., and Ionides, P. D. Jan. 25, 1924. Sluice gates.-In a vertically-sliding sluice gate of the free-roller type the rollers and their tracks are enclosed in a chamber having only a narrow opening exposed to the stream. The gate A has vertical end beams B sliding in recesses comprising castings built into the side walls of the channel. The rollers D are mounted to engage the downstream flange B<1> of the end beam B and a roller path D<1> carried by a rib D' formed in the casting. A shield plate F extending to the full height of the gate is bolted to the casting with its upstream edge inturned and lying closely against the web of the end beam and a vertically wall G extends from the interior of the casting close to the web of the end beam. Preferably the web is somewhat extended so that the edges of the walls can be brought close up to the web, leaving only a small clearance. The rollers thus lie in a stationary column of water and are protected from damage.
Patent GB-1501201-A (GB)
Title: Anorexigenic compounds
IPC: A61K31/19
Filed: 1975-01-17
Abstract: 1501201 Anorectic compositions SOC CIVILE DE RECHERCHES ET D'ETUDES NOUVELLES SCREEN 17 Jan 1975 [17 Jan 1974] 2198/75. Heading A5B [Also in Division C2] Pharmaceutical compositions having an anorexigenic effect, in the form of a solid or sterile solution, comprise a pharmaceutical carrier together with an active ingredient of the formula:  in which Ar is R 1 R 2 -phenyl, wherein R 1  and R 2 , which may be the same or different and may occupy any position on the phenyl nucleus, each represent a hydrogen atom or an alkoxy group having one or two carbon atoms or, if they are in the ortho position with respect to one another, together form a carbocyclic ring; -X represents a carbonyl group or a methylene group and -Y represents a saturated or unsaturated hydrocarbon group having two or three carbon atoms which may be substituted by alkyl groups having 1 or 2 carbon atoms of which two such alkyl groups may form, between themselves and at least two carbon atoms of the said hydrocarbon group, a saturated carbocyclic ring which may itself be substituted by one or more alkyl groups, provided that Y does not represent a saturated aliphatic chain of two or three carbon atoms when one of R<SP>1</SP> and R<SP>2</SP> represents an alkoxy group in the para position with respect to X and the other represents H, and X represents CO or CH 2 . and that Y does not represent an unsaturated chain of two carbon atoms when one of R 1  and R 2  represents a methoxy group in the para position with respect to X and the other represents H, and X represents carbonyl, or an addition salt thereof with a pharmaceutically acceptable acid. Active ingredients specifically disclosed are 3 - (4' - methoxybenzyl) - 3 - (4' - methoxybenzoyl)-, 3 - (4' - ethoxybenzoyl)-, 3 - (3', 4' - dimethoxybenzoyl) - and 3 - (1, 2, 3, 4 - tetrahydronaphthyl - 6 - carbonyl) - 1, 2, 2 - trimethylcyclopentane carboxylic acids, 2 - (4' - methoxybenzoyl) - cyclohexane carboxylic acid and 4 - (4' - methoxybenzoyl) - 2 - butenoic acid.
Patent GB-511843-A (GB)
Title: Improvements in the manufacture of containers
IPC: B21D51/26
Filed: 1938-01-24
Abstract: 511,843. Cartons &c. HACKFORD, J. E. Jan. 24, 1938, Nos. 2217 and 15098. [Class 66] [Also in Group VIII] Compound sheet material for making containers comprises a backing sheet or strip 17 of paper or cardboard and a facing sheet or strip 18 of material resistant to moisture, acid, or alkali , secured by a synthetic resin adhesive which is a partial solvent for the facing sheet, the'facing sheet overlapping the backing on one or more of its borders. The adhesive may be a plasticized phenol- or eresol-formaldehyde resin or hydrolysed polyvinyl actetate containing a solvent for the facing sheet which may be of cellulose acetate or regenerated cellulose. The overlapping edge of the facing, or one or more where more than one overlap, may be folded around the edge of the backing and secured thereto, as at 20. A backing strip may have narrower facing strips affixed on opposite sides and at opposite edges thereof, one or both facing strips extending beyond and/or being folded around the edge of the backing. Such strips. are formed into containers the cardboard &c. forming a lap joint or a butt joint, Fig. 12, and the edges of the cellulose acetate sheet being secured together. Alternatively strips may be wound helically on a cylindrical or conical mandrel. The facing sheets may be attached only to a narrow edge portion of the cardboard, so that a container formed by winding on a former first one facing, then the cardboard and finally the other facing has both its inside and outside protected.
Patent GB-100378-A (GB)
Title: Improvements in Ball-returning Devices Fitted to Billiard Tables.
Inventor: BROWNING CHARLES HENRY
IPC: A63D15/00
Filed: 1916-02-15
Abstract: 100,378. Browning, C. H. Feb. 15, 1916. Ball-returning shoots fitted to billiard tables. -A shoot a, fitted to the side of a billiard table, for returning the balls to either end of the table as desired, is suspended at each end by means of a counterweighted cord G passing over pulleys B. A ball falling on to the shoot from a pocket is caused to travel to either end of the table at will by pressing down the corresponding end of the shoot. The counterweight d returns the shoot to its normal position, a stop on the cord preventing overrunning. A vertical rod H prevents swing- ing.
Patent GB-353848-A (GB)
Title: Apparatus for keeping conversations secret
IPC: H04K1/04
Filed: 1930-01-22
Abstract: 353,848. Secret telephony. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Jan. 22, 1930, No. 2290. Convention date, Jan. 31, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] In order to ensure secret telephonic communication, t e I e g r a - phones are used at the transmitting and receiving stations and the pick-up and recording devices at the respective stations have synchronous oscillatory movements imparted thereto, in order to effect transmission at an unnatural speed. As shown, the sending and receiving telegraphones comprise magnetic recording discs Ss, Se rotated at synchronous speed and co-operating with recording pick-up and quenching magnets A, B, C. The transmitted message is recorded by magnet A<1> and retransmitted by pick-up magnet B<1> to recording magnet A<2>, the message being reproduced by magnet B<2>. The magnets B<1>, A<2> are oscillated at synchronous speed to produce an unnatural transmission speed in the transmitting medium between the stations. Owing to the oscillation of the recorder magnet A<2> the message is reproduced in its natural form by the magnet B<2>. If pauses are present in the distorted message they may be filled by an additional disturbing signal which is separated out at the receiving station. Alternatively, the pauses may be used for multiplex signalling. Transmission may be effected bv line or wireless and the secrecy of transmission may be further increased by known methods e.g. cyclic frequency changes, suppression of side bands or alteration of carrier frequencies.
Patent GB-265949-A (GB)
Title: Improvements relating to the stabilisation of moving objects such as aircraft and watercraft
IPC: B64C1/00
Filed: 1927-01-28
Abstract: 265,949. Messgerõte Boykow Ges. Feb. 11, 1926, [Convention date]. Rolling motion of ships, damping.-Each of the factors governing the motion of watercraft, or like moving objects, such as speed and direction, is stabilized on the inertia frame 2 of two oppositely moving gyroscopes 3, the resulting precessional movement being transmitted to the contact arm 16 by the bevel gears 14, 15. The motor 21 receiving current from one of the contacts 17, or 18, Fig. 5, thereby gives the required correcting movement. The motor simultaneously rotates the contact disc 19 by the gear 20 through the same angle as the arm 16. The inertia frame may be acted on by electromagnets 9 and an armature 7 on the spindle 6 of the frame, the current in each electromagnet being adjustably controlled by one of the measuring instruments. An electromagnet 22 and eddy current damper 23 or other brake device control the spindle 5 through the lever gearing 24 or the like. A second damping device consisting of armature 27 and coils 28 acts on the spindle 15, the damping effect being transmitted to the inertia frame 2 by the bevels 14. The current in the electromagnets is adjustable.
Patent GB-893005-A (GB)
Title: Thickening agent for mixtures of water and organic solvents
IPC: A61Q19/00
Filed: 1961-01-24
Abstract: Copolymers are made which consist of acrylamide and N-tert.-butylacrylamide in weight proportions of 3:7 to 8:2.  The monomers are preferably copolymerized in aqueous solution with the addition of an organic solvent miscible with water, e.g. methanol, ethanol, isopropanol, acetone and dioxane, and a catalyst such as a persulphate, hydrogen peroxide, benzoyl, diacetyl, cumene, cyclohexanone or lauroyl peroxides, azobisisobutyronitrile, or a redox system, e.g. a mixture of a persulphate and sodium bisulphite, pyrosulphite, dithionite or formaldehyde sulphoxylate.  The catalyst may be added gradually or portionwise to the reaction mixture.  At the end of polymerization the copolymer may be recovered by drying or by precipitation, or, if if it is desired to obtain an aqueous solution of copolymer, the solvent may be removed from the reaction mixture by heating in vacuo.  The copolymers are used for thickening mixtures of water and organic solvents which are miscible with water, e.g. C1-C3 alkanols, ethylene glycol and its monoethyl ether, acetone, dioxane glycerine and dimethyl formamide.
Patent GB-796761-A (GB)
Title: Improvements in or relating to the manufacture of cathode ray tubes
Inventor: SEATS PETER
IPC: H01J29/28
Filed: 1954-01-29
Abstract: 796,761. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 17, 1955 [Jan. 29, 1954], No. 2700/54. Drawings to Specification. Class 39(1). After a fluorescent screen has been applied by settling to the face of the cathode-ray tube, the tube is loaded, still wet, onto the aluminizing apparatus and the drying operation is performed by rough evacuation so that the fine evacuation and aluminizing can be carried out without further break in the vacuum. A separate drying step is thus avoided. The vacuum pump must be capable of handling water vapour. Specification 796,762 is referred to.
Patent GB-119799-A (GB)
Title: Improvements in or connected with Bidets.
Inventor: RUFFMAN DAVID ALEXANDROVITCH
IPC: E03D11/02
Filed: 1918-02-16
Abstract: 119,799. Ruffman, D. A. Feb. 16, 1918. Closets, bidet attachments for.-A bidet for use in connexion with a. water closet is adapted to be brought into position on the pan or seat and discharged into the pan, or alongside the pan and discharged into a separate trap, sink, or pipe. The bidet comprises a well f surmounted by a hollow rim g forming a seat, and may be connected by a jointed pipe h to the water supply so as to be raised out of the way, as shown in Fig. 1. Preferably, either hot or cold water may be supplied to the bidet, and means are provided whereby the water may be circulated through the rim g before entering the well f, or be sent directly into the well. These means comprise a partition whereby the water is forced to travel round the rim g to reach an outlet to the well, and a plug w, on the same side of the partition as the inlet, which may be raised to allow the water to enter the well directly. This plug may 'be connected with the plugs o for emptying the well f, or may be separate. A lip z prevents dripping when the bidet is raised. The supply cocks may be arranged so that the act of moving the bidet into position will cause the automatic filling thereof, and, according to the Provisional Specification, the return of the bidet may operate to open the discharge.
Patent GB-1102213-A (GB)
Title: Improvements in and relating to the dressing of road surfacing material
IPC: E01C19/10
Filed: 1965-01-22
Abstract: 1,102,213. Pneumatic separation; mixing appliances. A. SCHELLENBERG. 22 Jan., 1965 [24 Jan., 1964], No. 2855/65. Headings BIC and B2H. [Also in Division F4] In the preparation of road surfacing material, the mineral components are deposited on to a conveyor belt 2 from dosing devices 3 in predetermined proportions so as to obtain a preliminary granular mixture having the desired composition as regards the coarsegrained components. The mixture is fed by the belt 2 into a rotary drier 1 having conveyor blades 12 at its inlet and outlet and blades 13 for lifting and scattering the mixture material into a hot gas flow generated by a burner 15 associated with a blower. The drier 1 is slightly inclined to cause the mixture to travel through it as it rotates. Mounted adjacent the outlet end of the drier is a sifting device comprising a streamlined body 16, a sheet metal guide 18 and a suction funnel 17. As the material falls in the drier after being lifted by the blades 13, the fine components are entrained by the gas flow through the funnel 17 while the heavier coarse components are discharged through a hood 14. The body 16 serves to increase the gas velocity near the outlet end of the drier thereby assisting the separation of the fine components. The sifting device may be situated outside the drier. The gas flow may be passed in counter-current to the granular mixture. The fine components and the gases are then passed through a coarse separator 41 where the fine sand (0.1-1 mm) is separated out and through a fine separator 42 where the dust (0-0.1 mm) is eliminated from the gases which are discharged to a stack via a fan 40. The sand and dust are returned in accurately predetermined proportions via dosing devices (not shown) to the remainder of the mixture to form a final mineral mixture which is measured into a mixer together with an appropriate quantity of a binder such as bitumen.
Patent GB-410275-A (GB)
Title: Improvements in or relating to radio and other high frequency receiving systems
IPC: H03D11/02
Filed: 1933-01-30
Abstract: 410,275. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of George, R. W. ; Riverhead, Long Island, New York, U.S.A.) Jan. 30, 1933, No. 2911. Convention date, Jan. 28, 1932. [Class 40 (v).] A super-regenerative receiver comprises a pair of valves with the input circuit connected between their grids in push-pull relation, and with the quenching-frequency source coupled to their cathodes also in push-pull relation. The input coil 10 is coupled to the circuit 13,14 tuned to signal frequency, which has its midpoint earthed and its ends connected to the grids of the valves 11, 12. The quenching- source 18 is coupled to a coil 23 earthed at its mid-point through a biassing battery and connected at its ends to the valve cathodes. The valve plates are directly connected together and through a reaction coil 15 and telephones 21 to the plate supply source 20. The coil 15 reacts positively on one valve and reversely on the other, so that the circuit 13, 14 alternately breaks into oscillation and is quenched as each valve in turn predominates under the influence of the voltages applied by the quenching oscillator 18. A frequency-changing stage may precede the super-regenerative stage. The circuit referred to in Specification 394,267 is disclaimed. The Specification as open to inspection under Sect. 91 includes also the subject-matter of Specification 410,276. It also states that the circuits may be employed for coupling the local source to the detector in a superheterodyne receiver. This subject-matter does not appear in the Specification as accepted.
Patent GB-123389-A (GB)
Title: An Improved Differential or Balance Gear applicable to Motor Vehicles.
Inventor: ISHERWOOD NORMAN
Filed: 1918-02-20
Abstract: 123,389. Isherwood, N., and Withnell, J. F. Feb. 20, 1918. Balance gearing.-In a differential or balance gear, Fig. 1, for motor-vehicles, the member a of the driving-gear is provided with holes carrying balls d, which are adapted to engage with cups c<2>, c<3> in disks C, C<1> attached to the axles b, b<1> of the road wheels. The gear is provided with a casing h, ball bearings f, g, and forked packing-pieces k. Fig. 9 shows a modification in which the balls d are carried by a flange a<6> on the driving-wheel a, and are adapted to engage cups c<2>, c<3> in flanges on disks attached to the axles of the road wheels.
Patent GB-231412-A (GB)
Title: Guide for straw-braid sewing machine
IPC: D05B23/00
Filed: 1925-02-03
Abstract: 231,412. Singer Manufacturing Co., (Assignees of Becker, R.). May 2, 1924, [Convention date]. Straw - plait sewing- machines; presser-bars; work - guides. -In a machine for sewing straw-braid together in abutted relation by means of a laterallyvibrating needle 5, the work portions are led to the sewing-point on either side of a vertical dividing plate 13, the fresh strip of braid being held in engagement therewith by a yielding spring-guide 21 to allow of variations in width. The usual work-plate 8, 9 is grooved at 10, Fig. 1, to receive the pivot-pin 12 of the dividing-plate 13, which is resiliently held in position on the work-plate by a spring 11 engaging a flat on the pin 12. The guide 21 together with a spring-pressed braid presser 22, Fig. 5, are fixed by a screw 20 to the flat face 19 of an arm 17 pivoted to the usual laterally-adjustable support 15. The end 14 of the plate 13 engages in a slot in the presser-foot 6. The plate 13 and the arm 17, which is normally positioned by a spring detent 29, Fig. 1, can be turned out' of position to allow the starting button of a hat to be sewn.