baber/WOPTO huggingface dataset:
Patent GB-260259-A (GB)
Title: Improvements in or relating to wireless telegraphy and telephony
IPC: H04B7/06
Filed: 1926-10-19
Abstract: 260,259. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 20, 1925, [Convention date]. Aerials and like radiating and receiving conductors. - In order that radiation of short wave length may be transmitted in all directions in space so as to reduce fading, a number of straight aerials, to which energy is supplied in succession at their middle points, are arranged to form a star. The aerials may all lie in one plane, or a number of such plane star systems may be combined so that the ends of the aerials are distributed over the surface of a sphere. The aerials are energized successively through a distributor switch which may comprise a rotating coupling, a rotating spark gap, or an arrangement in which a cathode stream is deflected so as to connect different electrodes in succession. The receiving aerial may comprise a star arrangement similar to that at the transmitting station. According to the Specification as open to inspection under Sect. 91 (3) (a) the aerials may be energized simultaneously. This subjectmatter does not appear in the Specification as accepted.
Patent GB-697513-A (GB)
Title: Apparatus for inserting and extracting drawing pins
Inventor: SCHEURMANN JEAN
IPC: B25C1/02
Filed: 1951-11-07
Abstract: 697,513. Inserting drawing-pins. COLOR METAL AKT.-GES. Nov. 7,1951, No. 26106/51. Class 89 (iii). [Also in Group XXIII] A device for inserting and extracting drawing pins comprises an inner tube 1 which receives the pins 2 and retains them by spring fingers 4, and an outer housing 5 which is provided at its lower end with a sleeve 7 formed with an inturned flange 8 to co-operate with claws 10 pivoted on an annular member 6, whereby the claws are swung inwardly over or under a pin 2 for insertion or extraction thereof when the housing 5 is depressed against a spring 11. The device is adjusted for insertion, Fig. 3, or extraction, Fig. 1, by rotating the tube 1 in the housing 5 to raise or lower a guide sleeve 12 by the co-operation of a projection 13 on the tube 1 with a helical slot 12a in the sleeve 12. The pins 2 are pressed downwardly by a spring plunger 1b.
Patent GB-1533543-A (GB)
Title: Grinding device for slide valves
IPC: B24B15/02
Filed: 1977-06-22
Abstract: 1533543 Grinding slide valves J PEDERSEN 22 June 1977 26106/77 Heading B3D A device for grinding the seat 10 of a slide valve 11 comprises a disc 1 having clamping elements which can be engaged with the inner wall of the valve seat opening a grinding ring 2 rotatable on the disc, and means 9 between the disc and ring for pressing the latter against the valve seat. Two of the clamping elements have hook-shaped elements 14 which are secured to the disc by nuts 3 and a third clamping element has a hook-shaped element 16 which can be rotated by a handle 5 whereby the hooks, which project axially beyond the ring, can be pressed into gripping engagement with the inner side of the valve. The grinding ring is mounted for rotation on bearings 7 on the axial pins of the clamping elements and is pressed by spring- loaded balls 9 against the valve seat 10. The grinding ring is rotated by a cord disposed in a groove 13 in the periphery of the ring. The grinding surface may comprise abrasive paper 8 secured by adhesive to the ring.
Patent GB-261165-A (GB)
IPC: B65D39/08
Abstract: 261,165. Huyghe, A. B. F. Oct. 19, 1925. B u n g s and bushes for bungholes.- A closure on a metal cask comprises an internal screwed collar E between which and a shoulder on a screwed bung the rim A of the body A is clamped. The rim A<1> is preferably raised and two or more lugs B are left which are bent to engage grooves in the screwed collar. The collar may be bent up from a blank shaped as shown in Fig. V., and the bung is pressed from sheet material into the form of a double cylindrical cup.
Patent GB-1207806-A (GB)
Title: Improvements in or relating to flexible skirting assemblies for ground effect machines
Inventor: CRAGO WILLIAM ARTHUR
IPC: B60V1/16
Filed: 1967-06-06
Abstract: 1,207,806. Air cushion vehicle flexible skirt. BRITISH HOVERCRAFT CORP. Ltd. 10 May, 1968 [6 June, 1967], No. 26140/67. Heading B7K. A flexible skirt assembly for an Air Cushion Vehicle comprises a flexible first diaphragm 1, attached to rigid structure 8 and 9 of the vehicle and formed from a substantially rectangular sheet having orifices 6 and 7, a flexible second diaphragm 13, formed from a substantially rectangular sheet and attached at least along one of its longer edges, to said diaphragm and a succession of juxtaposed flexible segments 2, depending at least in part from said flexible member at 5. Said segments may be tubular as in Fig. 1 or may have a horizontal U-shaped cross-section concave toward the cushion and may in the former possess an orifice 17 at their lower end. During vehicle operation, pressurized gas enters chamber 12, and through orifice 6, inflates chamber 4, which may be sealed from, have an aperture leading to or open into segments 2. Segments 2 may also be subjected to gas pressure by passage of gas through orifices 7. The gas cushion support is provided by gas passing into space 16, via orifices 17. The flexible diaphragm 13 may be attached by one edge to diaphragm 1 and by another edge to either rigid structure 9 or segment 2 or it may be attached by two edges to diaphragm 1. The segments 2 may depend in part from flexible diaphragm 13 and in part from either diaphragm 1 or rigid structure 8. Valves may be placed at 6 whereby chamber 4 may remain inflated after removal of the gas source. Separate gas sources may supply the skirt assembly and provide cushion support, and gas may enter the assembly other than via diaphragm 1. The skirt may be used for dividing a cushion space.
Patent GB-775532-A (GB)
Title: Apparatus for reproduction of sound from continuous magnetic tape or other carrier in the form of a continuous band
IPC: G11B15/70
Filed: 1955-09-13
Abstract: 775,532. Magnetic recording and reproducing apparatus. APPERT, D., and CAILLIOT, S. Sept. 13, 1955 [Sept. 18, 1954; Aug. 31, 1955], No. 26158/55. Class 40 (2). In an apparatus for storing an endless magnetic tape whereby reproduction may be carried out by a user without handling the tape, the said tape is in the form of a spiral coil having a section linking the inner turn to the outer turn and driven past a reproducing head insertable through a suitable aperture in the enclosure without disturbing the constant disposition of the tape. In the embodiments described the coil 24 is supported on rotating axles 20 which are radially arranged in a stationary container 2 and have rollers 21 driven by a plate 1 supported by and rotating with a turntable 10. The section 39 of the tape connecting the inner and outer turns of the coil is drawn past the transducer 37 by a drum 9 rigidly connected to the plate 1, the transducer 37 being insertable through an aperture 36 in the top plate of the container 2. The particular section 39 of the tape representing the start of the recording may be marked by suitable colouring, and its position in the coil 24 identified by means of a transparent scale 38 on the top of the container 2. The second embodiment, Figs. 5 to 8 inclusive (not shown), carry additional spring- loaded rollers above the coil 24 to hold it firmly in contact with the axles 20. Means are also provided to lock the plate 1 in relation to the container 2 until the transducer 37 has been inserted and secured in its correct position.
Patent GB-1262487-A (GB)
Title: Improved h.f. welding and cutting press
Inventor: COLLEY RAYMOND
IPC: B29C65/04
Filed: 1968-05-31
Abstract: 1,262,487. Seaming non-metallic sheet material. STANELCO-THERMATRON Ltd. 30 May, 1969 [31 May, 1968], No. 26201/68. Heading B5K. [Also in Division H5] A welding and cutting beam press comprises a high-frequency generator 11 mounted to move with a press head 5, a power feed 12 from the generator 11 to the head 5, and means 13 or 14 to provide a low impedance current path at the high-frequency operating frequency between the earthy terminal of the power feed and the underlying platen 1 of the press.  As shown, the press head 5 is mounted on a beam 4 for movement therealong and carries a ram 6 attached to a working head 7 having a welding and cutting plate 8. The generator 11 is supported by a bracket 10 attached to the head 5 and dimensioned to clear the beam 4. Material to be welded is fed, in the direction of arrow A, through the nip of rollers 9 to lie between the platen 1 and the plate 8. A coaxial feeder cable 12 transmits power from the generator 11 to the head 7 and its central live feed is connected to the plate 8. In one embodiment. Fig. 1, the low impedance current path is provided, utilizing capacitive coupling, by a conducting plate 13 connected to the earthy screening of the cable 12 and which is pressed against the material during cutting and welding to lie parallel to the platen 1. In an alternative embodiment, Fig. 2, at least one electrically conducting strip or finger 14, e.g. of phosphor bronze, extends from the earthy screening of the cable 12 and makes direct electrical contact with the platen 1 at least when the head 7 is lowered.
Patent GB-1429269-A (GB)
Title: Method of separating metals form each other by liquid-liquid extraction
IPC: B01J19/00
Filed: 1973-06-01
Abstract: 1429269 Metals separation by liquid extraction OUTOKUMPU OY 1 June 1973 [2 June 1972] 26318/73 Heading C1A [Also in Division G3] Zinc, cadmium or copper values are separated from cobalt, nickel, or ammonium values by forming a dispersion of an aqueous solution containing the metal values and at least one ion exchange extraction agent, which yields hydrogen ions, measuring the pH of the dispersion, and adding a neutralizing agent until the pH reaches a desired value. pH measurement is carried out using conventional pH electrodes and utilizing these measurements to automatically control the addition of neutralizing agent. The extraction may be multistage with independent pH control for each stage and the preferred exchange agent is a di-(2-ethyl-hexyl)ester of phosphoric acid.
Patent GB-195414-A (GB)
Title: Improvements in or relating to the manufacture of coal or other briquettes
IPC: C10L5/22
Filed: 1921-10-05
Abstract: 195,414. Lloyd. H. G., and St. Barbe, G. Oct. 5, 1921. Continuous-discharge apparatus with stationary containers; falling or projected streams, commingling.-Apparatus for manufacturing stone &c. briquettes with the aid of a binding-agent comprises means for simultaneously feeding continuous streams of heated binding-agent such as bitumen, pitch &c. from a tank 10, and water or wet steam from perforated pipes 16, to a receptacle 14 in which they intermingle and froth, and means for continuously delivering said froth from the receptacle 14, through a conduit 19, into contact with a stream of the material to be. briquetted, falling from a hopper 22. The rate of flow of the material is adjusted by means of a sliding door 23, and the material and froth become intermingled in a channel 20 leading to a mixing tank 25 having a steam-heated hollow bottom 26 and a shaft 27 upon which are mounted beater arms 28 for agitating and intermixing purposes. come of the arms 28 are provided with widened ends 29 arranged so as to he consecutively spaced through 90‹ in the direction of rotation so that a screw formation is created for feeding the mixture from the left to the outlet at the right of the tank 25. Fresh supplies of the material to be briquetted may be incorporated in the mixture at intervals along the length of the tank 25 from troughs such as 30. In modifications, the streams of froth and material to be briquetted are arranged to be delivered on opposite sides of a dividing plate. 31 arranged in the channel 20, or the froth delivered through the conduit 19 into the channel 20 may fall on to the stream of material to be briquetted. Specification 170,092 is referred to.
Patent GB-1477321-A (GB)
Title: Control means for automatic roll type filters
IPC: B01D46/18
Filed: 1974-06-13
Abstract: 1477321 Travelling band air filter AMERICAN AIR FILTER CO INC 13 June 1974 [5 July 1973] 26381/74 Heading B1T In a non-endless moving band air filter, the glass fibre filter band passes between a lamp 60 and a photocell 62 adjacent where the band enters the filtering zone (Fig. 3, not shown) and the band take-up roll is rotated by an electric motor 54 to move clean band into the zone when the light received by the photocell falls below a variable preset level. The photocell resistance rises with decrease in incident light, and relay 84 is energised only when the photocell resistance exceeds the total resistance of variable resistor SA and fixed resistor Rl. Resistor Rl is large enough to prevent the relay energising even with resistor SA set at zero, and resistor SA enables the critical resistance of the photocell to be varied. Energising relay 84 closes switch 82 which is connected to motor 54 in series with a second switch 98, which is closed only if lamp 60 is on and if a switch 90 is closed, which opens if the filter band on the supply roll nears exhaustion. If the lamp is off or the band nearly exhausted, current sensitive relay 87 opens switch 98 to prevent the motor 54 moving and closes switch 96 to illuminate a warning light 92. Switch 90 controlled by a band-engaging arm (106) could be replaced by a second photocell which responds only to the absence of filter band between it and lamp 60. Or a single photocell could be arranged to control movement of the filter band and indicate band exhaustion. Reference has been directed by the comptroller to Specification 1107182.
Patent GB-226638-A (GB)
Title: Improvements in means for applying electric power to the operating of steering, or analogous, gear, or in assisting, or supplementing, hand-power in such operation
IPC: G05D1/02
Filed: 1923-10-23
Abstract: 226,638. Scott, W. H. Oct. 23, 1923. Steering-gear. - Relates to steering-gear operated by hand and assisted by electric power and consists in arranging for the coils of the operating contacts by which current is supplied to the motor to be controlled by the. starting contacts operated by hand and to be coupled to a closed circuit through which current passes even when the motor is idle. The electric motor H has a free pinion h<2> which can be clutched to the armature shaft by the solenoid I when current flows through the coil I<2> and is declutched' by the spring i when no current flows. A small current flows from F through the resisance g, coil I<2>, slip rings E and contacts C, C<1>, C<2>, back to the main G. The hand wheel shaft carries the slip rings E and contacts C', C<2> the contacts C being on the spur wheel B on the rudder shaft. On turning the hand wheel, the spring plungers of the contacts C' or C<2> are compressed and unshort the coil j or j<2> and later unshort the coil k of the starting resistance k<2> so that the motor is put into operation to drive the rudder shaft, motion being maintained by keeping the movement of the hand wheel up to that of the rudder shaft. Specification 73/14 is referred to.
Patent GB-750406-A (GB)
Title: Improvements in or relating to goods handling and transporting trucks
Inventor: ARNOT ALFRED ERWIN REGINALD
IPC: B62B3/06
Filed: 1952-10-21
Abstract: 750,406. Couplings for vehicles. SHARP, J. R., and KAYE, E. Oct. 20, 1953 [Oct. 21, 1952], No. 26453/52. Class 103 (5). [Also in Group XXX] When it is desired to couple a number of trucks into a train a bar 55 which is universally mounted on the chassis of the truck at 155, and which normally lies above arm 13, is disconnected from a bracket 56 and secured to the other arm 14 by a pin 57. The eye 49 of the succeeding truck is then attached to a bracket 58 on bar 55. Specification 242,736 is referred to.
Patent GB-336366-A (GB)
Title: Improvements in spring motors for gramophones and the like
IPC: G11B17/00
Filed: 1929-08-31
Abstract: 336,366. Graham, G. Aug. 31, 1929. Spring power-storing mechanism.-Wear on the spring of a gramophone motor due to friction with the top and bottom of the spring-barrel is prevented by fitting ball bearing plates or discs T between the spring and the barrel ends. Overwinding is prevented by housing the spring in an inner case, Fig. 2, frictionally gripping the barrel, Fig. 3. The catch on the axle of the barrel, for engaging the spring, is a spring catch. Overwinding is also prevented by having two-part oppositely threaded handles.
Patent GB-141625-A (GB)
Title: Improvements in temple rollers for looms
IPC: D03J1/22
Filed: 1919-10-29
Abstract: 141,625. Birtwisle, D. J., and Andrew, R. Oct. 29, 1919. Temples of the kind wherein the outer end portions are provided with pins or teeth, and the remainder with friction surfaces, for positively engaging the selvedge and frictionally engaging the marginal portions of the cloth, are specially adapted for the weaving of voiles, mulls, poplins, and other delicate fabrics, by providing the frictionally-engaging parts with knurled surfaces, the teeth a preferably projecting beyond the knurled surface b.
Patent GB-1079619-A (GB)
Title: Flotation process for upgrading cassiterite concentrates
IPC: B03D1/001
Filed: 1966-06-14
Abstract: Cassiterite is obtained from tin ore by grinding the ore to liberate the cassiterite; subjecting the ground ore to a first flotation step with fatty acid as the flotation reagent to float a rougher or primary concentrate containing the cassiterite; drying the concentrate; heating the dried concentrate to a temperature above the boiling point of the fatty acid to remove at least most of the fatty acid from the particles of the concentrate; subjecting the resulting concentrate to a second flotation step with a cationic collector as the flotation reagent to float the gaugue minerals in the concentrate; and recovering the cassiterite as the underflow of the second flotation step.  If necessary, before the first flotation step, the ground ore may be treated by flotation and/or magnetic concentration to remove metallic sulphides (using a xanthate or thiosulphate collector) and/or iron oxides.  Desliming of the ground ore is carried out, e.g. in a hydroclassifier, before the first flotation step either before or after the sulphide flotation.  The fatty acids that may be used are oleic, stearic, linoleic, and palmitic and mixtures thereof including tall oil.  Optimum flotation is obtained in the p  pH range of 4.0 to 6.5; the pH should not however exceed 8.5.  A suitable cationic collector is an amine, e.g. dodecylamine hydrochloride.  A gaugue dispersant, e.g. Na2 SiO3 may be added to the first flotation step and a depressant for the cassiterite such as a carbohydrate or carbohydrate derivative, e.g. sorghum flour, may be added during the second flotation step. The gaugue float from the second step may be refloated to drop out additional cassiterite which is then added to the underflow from the second step to increase the tin recovery.  Also, the underflow may be refloated to remove additional gaugue minerals to increase the tin content of the final product.
Patent GB-1154573-A (GB)
Title: Improvements in or relating to Ion Specific Glass Electrodes.
Inventor: SIMON WILHELM
IPC: C03C3/00
Filed: 1966-06-15
Abstract: 1,154,573. Glass electrodes. W. SIMON. 15 June, 1966 [21 June, 1965], No. 26595/66. Heading C1M. A glass electrode comprises an ion-specific membrane of glass containing 5i0 2 , at least one alkali metal oxide, and 0À5-25 mole per cent Ga 2 O 3 , and optionally Al 2 O 3  so that Al 2 0 3  + Ga 2 O 3  # 25 mole per cent. Glass compositions are given for determination of Na and K ions.
Patent GB-444250-A (GB)
Title: Improvements in or relating to roughing tools suitable for performing a roughing operation on the bottom of a lasted shoe
IPC: A43D37/00
Filed: 1934-09-17
Abstract: 444,250. Boot - making machines. UNITED SHOE MACHINERY CORPORATION, Paterson, New Jersey, U.S.A.- (Assignees of Brostrom, C. G. ; South Peabody, Massachusetts, U.S.A.) Sept. 17, 1934, No. 26616. Convention date, Oct. 30, 1933. [Class 17 (i)] Sole-laying.-A roughing tool especially designed for preparing the overlasted margins of uppers for the application of cement comprises bundles of wire bristles housed in a rotating shaft parallel to the axis, the end portions of the bundles being turned outwardly from the shaft and terminating in roughing ends distributed in annular formation. To compensate for wear of the bristles, the bundles are fed along the shaft. A hollow shaft 18 rotated by a belt 20 is provided with a concentric screw 30 having threaded engagement with an adjusting ring 34 formed with cut-away portions engaging the ends of bundles of crimped resilient wires, the group of wires forming a bundle being tied together at intervals. At one end of the shaft 18 is an enlarged portion 40 forming an abutment for a screwed collar 54 normally retaining a guide member 44 formed with splayed openings to receive the respective bundles of bristles. The ends of the bundles are supported by a ring 76 slotted to engage the bundles, a separate member 9 having blocks 88, 90 clamping the ends of the bundles in the slots in the ring 76. The assembly is locked by a nut 96. The member 34 is splined to the shaft 18 and is moved along the screw by rotating the screw head 32 which is, normally, covered by a shield 104 urged to operative position by a spring 110.
Patent GB-1508094-A (GB)
Title: Acrylonitrile containing impact resistant polymers
IPC: C08F279/04
Filed: 1976-06-28
Abstract: 1508094 Graft polymers DOW CHEMICAL CO 28 June 1976 [30 June 1975 25 Sept 1975] 26818/76 Heading C3P A graft polymer is produced by polymerization of (a) from 2 to 25% by weight (calculated as the weight of the rubber) of a rubber latex having polymerized therein from 50 to 98% by weight of butadiene-1,3 and from 50 to 2% of a mixture of an alkenyl aromatic monomer and acrylonitrile. The weight ratio of the alkenyl aromatic monomer to acrylonitrile being from 5 to 1 to 1 to 5 and (b) from 98 to 75% by weight of a monomeric mixture comprising at least 50% by weight of acrylonitrile and up to 50% of an alkenyl aromatic monomer, the ratio of the weight of the graft polymer superstrate to the weight of rubber in the reaction product of (a) and (b) being from 0À1 : 1 to 3À5 : 1 and the polymerization being of the emulsion type in an aqueous medium and carried out in the presence of a free radical initiator at a temperature of from 0‹ to 100‹ C. Examples are given in which styrene is the alkenyl aromatic monomer used.
Patent GB-1525382-A (GB)
Title: Flow sensing devices
IPC: G01P13/00
Filed: 1975-09-09
Abstract: 1525382 Detecting fluid-flow electrically PEKTRON Ltd 9 Sept 1975 [18 June 1974] 26828/74 Heading G1N(A) Located between a pump and a fluid-dispensing cylinder 20 in a fluid-dispensing system a flowsensing device comprises conductive or magnetic balls 8 the movement of which to limit positions 16A or 16B changes the inductance of coils L1, L2. By the use of springs or other biasing means the said device may be used in a horizontal or inclined position. Beer from pipe 23 is delivered to one end of dispensing cylinder 20 via branch pipe 25 or 26 and moves the piston 21 which dispels beer or the other side via the other branch pipe to delivery pipe 24. In the absence of flow in pipe 25 the balls 8 damp an oscillator circuit, Fig. 2, and transistor T2 is switched off which closes the flow-control valve or switches of the pump.