baber/WOPTO huggingface dataset:
Patent GB-1463352-A (GB)
Title: Filtering apparatus
IPC: B01D29/15
Filed: 1974-04-10
Abstract: 1463352 Cleaning pressure filters ENGLISH CLAYS LOVERING POCHIN & CO Ltd 1 April 1975 [10 April 1974] 16037/74 Heading BID A method of removing residual solid particles from the pores of a filter element (4) of a tube pressure filter 1 comprises (a) washing the filter element on the inner tubular body with an aqueous cleaning solution (e.g. an acid or ammonium compound solution) in which the solid particles are at least partly soluble (b) washing the filter element on tubular body with water or an aqueous soap or detergent solution. An hydraulic fluid in compartment 8 may be supplied or withdrawn through valves 13 and 18 to cause wash solutions to pass to and fro through element 4 under influence of inflatable impermeable sleeve 3. Filter cake is removed by lowering inner tubular body 3 from the filter and applying an air blast through valve 19.
Patent GB-160563-A (GB)
IPC: G05D16/10
Abstract: 160,563. Fothergill, H. Dec. 23, 1919. Leakage, preventing.-A surplus-steam valve actuated or balanced by means of a piston has a steam belt maintained around the piston to prevent leakage. The valve member d is loaded by a spring e acting on a spindle f which carries the grooved balancing- piston. Surrounding the piston is an annulus k supplied with steam from the inlet side through a valvecontrolled pipe. The space above the piston may be connected to the drain. A screw o is fitted for manual actuation In a modification, the skirt of the piston is extended and perforated to act as a valve and a levercasing gear provided with a removable locking-pin is fitted
Patent GB-379001-A (GB)
Title: Improvements in air or gas compressors
IPC: F04B25/02
Filed: 1931-06-04
Abstract: 379,001. Compound compressors. STERNE & CO., Ltd., L., Crown Iron Works, North Woodside Road, Glasgow, and CHEW, L., 1, Upper Thames Street, London. June 4, 1931, No. 16163. [Class 8 (i).] A compressor, e.g. for refrigerants, comprises superposed cylinders b<1>, e in which the pistons c, i work, the lower end of the cylinder e depending into a cup formed by the piston c. Gas from the evaporator enters by a valve j and passes after compression through the valve m to a brush n leading to an annulus o between the cylinders ; gas also passes through a passage t to the crank case. From the annulus o the gas passes on the upstroke through apertures p in the piston walls to the valve q in its head, passing, after its final compression, through the outlet valve r and passage s to the condenser. The enlargement formed by the piston c is 1-833 times the main piston area.
Patent GB-137753-A (GB)
Title: Improvements in wickless stove burners
IPC: F23D11/44
Filed: 1919-06-28
Abstract: 137,753. Albutt, J. F. June 28, 1919. Vaporizing - apparatus; flame spreaders.-In a wickless stove burner of the roarer type, the plate a brazed to the feed and vapour pipes d, c is provided with a removable plug fitting in a tapered or stepped central hole b. The removable plug facilitates drilling and tapping of the nipple socket f and insertion or removal of the nipple e.
Patent GB-840545-A (GB)
Title: Electric borrowing circuit suitable for use in a binary subtractive circuit
IPC: H03K19/162
Filed: 1956-05-25
Abstract: 840,545. Parametrically-excited resonators. KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA. May 25, 1956 [June 2, 1955], No. 16304/56. Class 40 (9). [Also in Group XIX] Parametrically-excited resonators (parame. trons) described in Specification 778,883, are used to determine the borrow digits in a circuit for subtracting binary numbers. Both parallel and serial subtractive circuits are described. If x is one digit of the minuend, y the corresponding digit of the subtrahend and z the digit borrowed by the previous stage, the digit b to be borrowed from the next stage is determined by a parametron P, Fig. 4, which signals the borrow digit on terminal B. The parametron is used as a two-out-of-three gate controlled by signals x, y, z derived from terminals X, Y, Z. A subtractive unit, Fig. 7, comprises four parametrons P0, P1, P2, P3 which produce an output at terminal W representing the difference x - y - z. The borrow digit is signalled on terminal B. The parametrons are excited in known manner in three overlapping phases I, II, III, as shown in Fig. 3, information being transferred from parametrons excited in one phase to parametrons excited in the next phase during the overlapping periods. Parallel subtractive circuit. Four subtractive units are connected in cascade, Fig. 8, with the B terminal of one connected to the Z terminal of the next and with a binary digital signal " 0" applied to terminal Z1 during each I phase. The digits of the minuend and of the subtrahend are applied successively in phases I, II, III, I to terminals (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y4). The difference is signalled on terminals W1 to W4. Serial subtractive circuit. The first, second &c. digits of the minuend and subtrahend are applied to terminals X, Y, Fig. 9, in phase I of successive phase cycles. The borrow digit signalled by parametron P1 in phase II is delayed by parametron Pr3 in phase III and is applied to Pr1 in phase I with the next pair of digits signalled from X, Y to parametron Px, Py. The digits of the difference are signalled successively at terminal W.
Patent GB-1423030-A (GB)
Title: Process for producing dl-tartaric acid
IPC: B01J25/00
Filed: 1974-04-11
Abstract: 1423030 dl-Tartaric acid MITSUBISHI GAS CHEMICAL CO Inc 11 April 1974 [17 April 1973] 16316/74 Addition to 1423029 Heading C2C dl-Tartaric acid is produced by hydrolysing epoxysuccinic acid in aqueous solution in the presence of a catalyst comprising active charcoal, aluminium oxide or ferric oxide, the catalyst being substantially insoluble in the aqueous solution. Catalysts exemplified are active charcoal, α-Al 2 O 3 , α-Fe 2 O 3 , silica-alumina and Fe 2 O 3 . 3TiO 2 ; these may be filtered off before separating the product from the solution by evaporation or crystallization.
Patent GB-221886-A (GB)
Title: Improvements in or relating to interlocked fastening devices particularly applicableto electrical apparatus
IPC: H01R13/707
Filed: 1923-06-23
Abstract: 221,886. Reyrolle & Co., Ltd., A., Fisher, R. J., and Mirrey, J. June 23, 1923. Plug couplings and connectors.-A device for clamping an electrical plug in its socket is adapted, when the plug is released, to move a member into the path of a switch arm so that the switch cannot be closed with the plug out and the plug cannot be withdrawn with the switch " on." The plug C fits into the socket A and is secured by the usual bolts pivoted to the sockets and engaging slotted lugs on the plug and tightened by wing nuts. One of these bolts B is modified as shown in the Figure. This bolt is pivoted to the lug A' of the socket and carries a sleeve D which can move longitudinally on the bolt but is prevented from rotating by the slot D' in which works the pivot pin B<1>. An internal screw-thread in the sleeve engages a threaded prolongation of the tightening head E which has a recess bordered by flanges E<1>, E<2> engaging a recessed lug C' on the plug. In the position shown, the head E has been tightened up to clamp the plug into its socket and the sleeve has moved to the limit of its slot D<1> against the spring F to move the projection D<2> on it out of the path of the arm G carried by the switch so that this can be closed as the plug is secured. The plug cannot be removed while the switch is turned to its " closed " or " on " position because the arm G on it is in the path of the projection D<2> and the stop B<3> prevents the head E from being screwed out sufficiently far to release the plug. When the switch is turned to the " off " position, the arm G is removed from the path of the projection D<2> and the head E can be unscrewed to remove the plug, the drum travelling along the screw-threaded head until the other end of the slot D' in it abuts on the pivot B'. This unscrewing forces the plug out of its seating and brings the projection D<2> into the path of the arm G so that the switch cannot be moved to the " on " position while the plug is out. The head E may have a screwthread engagement with the bolt B as well as with the sleeve.
Patent GB-489201-A (GB)
Title: Improvements in the machines for depositing a viscid material upon cakes or like objects
IPC: A21C15/00
Filed: 1937-06-14
Abstract: 489,201. Coating bakers' goods. BURGESS, A. F. (Peters Machinery Co.) June 14, 1937, No. 16471. [Class 28 (i)] In a machine for depositing viscid material upon cakes and the like, the cakes are fed by a serrated pusher 8 from a row of magazines 3 on to a belt 9 which is mounted on a frame 44 pivoted on the shaft 37 of the belt-driving roller 36, and is swung up and down by an interchangeable cam 48 through linkage 50, 46, 45 so that the deposits from the nozzles 59 are broken. The cakes are deposited by the belt 9, before reaching the nozzles 59, on to a plate 60 which covers and holds a serrated pusher plate 12 which positions the cakes properly on the conveyer 11 which presents them to the nozzles, alignment of the cakes therewith being further assured by stationary fingers 101 carried by a cross-bar 100. The plate 60 has a rear crossbar on its underside which engages the back edge of the plate 12, and side flanges and flanges on the ends of its front edge to constrain the plate 12 to reciprocate with the plate 60. When the plate 60 is lifted, the plate 12 remains on the conveyer 11 and may be removed for replacement. To allow the plate 60 to be lifted, the plate 43, around which the front end of the conveyer 9 is trained, is mounted on a member 69 pivoted at 70 and having a quadrant 71 meshed by a pinion 72, the turning of which swings the plate 43 about its pivot 70. The plates 60, 12 are reciprocated by a crank through linkage including arms 62, links 64 having adjustment means 66, 67, and slide bars 106, to which the plate 60 is secured by screws 58, having ears 107 to which the links 64 are pivoted. When the cakes are deposited on the plate 60, it moves rearwardly and, by contact with the front edge of the belt 9, the cakes are pushed from the plate 60 on to the belt 11 in the spaces in the plate 12. The front edge of the plate 60 is cut back to expose the serrated edge of the plate 12. The position of the frame 44 relatively to the nozzles 59 is controlled by nut members 53 on screwed parts of the links 45, the nuts being connected together by chain and sprocket means, a push-pull member 56 being connected to the chain to facilitate adjustment. When the frame 44 is oscillated, the belt 11 pivots about its front end roller. The tension of the belt 11 is regulated by means 108, 109, and that of the belt 9 by screws 74 acting on the plate 43. The plungers for ejecting the material from the hopper 91 are operated by vertically reciprocating rods pivoted to adjustable-throw cranks on shafts 94, 95 which are oscillated by crank means on a shaft 97a. The belts 9, 11 are driven intermittently through ratchet gearing. The motor 13 drives the machine through change-speed reduction gearing and a clutch.
Patent GB-1090885-A (GB)
Title: Multifrequency signal receiver circuit
IPC: H04Q1/453
Filed: 1965-04-20
Abstract: 1,090,885. V.F. signal receivers. WESTERN ELECTRIC CO. Inc. April 20, 1965 [May 11, 1964], No. 16477/65. Heading H4R. A voice frequency signal receiver comprises, Fig. 1, a signal driver circuit 104 feeding a number of parallel channels each comprising a filter circuit, e.g. LA, CA, tuned to one of the frequencies of a voice frequency signal input and a detector circuit, e.g. 106A. The V.F. signal input is also fed to a guard driver circuit 105 which, due to the guard filter circuits 102 rejects signals of the legitimate voice frequency signals and passes only signals of other frequencies, which signals, if present, inhibit the action of the detectors 106A &c. The input signals are also fed to a timing circuit 107 which, if the input signal persists for greater than a predetermined time and if at least two detectors are producing an output, operates a signal present indicator 108 which controls a scanner 109, 110 to sample the detector outputs in turn to convert the parallel V.F. signal to serial form. The signal present indicator 108 also includes a timing circuit which ensures that only if a gap in the signalling condition persists for greater than a predetermined time is the gap recognised as an interdigital pause. Detail circuits are described for the A.G.C. circuit 101, Fig. 2A (not shown), the signal driver 104, Fig. 2B (not shown), the guard driver 105, Fig. 2C (not shown), the channel detector 106A, Fig. 3 (not shown), the signal present timer 107, Fig. 4 (not shown), and the signal present indicator 108, Fig. 5 (not shown).
Patent GB-684112-A (GB)
Title: An improved process of molding a foamed aqueous dispersion of rubber or the like to produce a cellular article
Filed: 1950-07-03
Abstract: 684,112. Moulds for foamed rubber. TALALAY, J. A. July 3, 1950 [March 2, 1950], No. 16519/50. Class 87 (ii). [Also in Group XXVI] Foamed rubber is moulded in a mould having at least two sections 10, 11, the interengaging surfaces of which have means for preventing escape of rubber, yet allowing gases to escape. The means may comprise (a) grooves 16, Fig. 2, which fill with rubber which congeals and prevents further escape, (b) a fibrous, porous member 20 in grooves 16', 17', Fig. 3, (c) a rubber tube having a fabric cover located in interengaging grooves, Fig. 4 (not shown). The tube may be inflated after the mould has been closed, (d) a tube, in interengaging grooves, through which refrigerant is passed to freeze any escaping rubber or (e) interengaging grooves through which a gaseous or liquid coagulant is'passed, Fig. 7 (not shown).
Patent GB-478052-A (GB)
Title: Improvements in fuel injection nozzles for internal combustion engines
IPC: F02M61/10
Filed: 1937-06-15
Abstract: 478,052. Liquid - fuel injectors. DECKEL, F., (trading as DECKEL, PRAZISIONSMECHANIK UND MASCHINENBAU, F.). June 15, 1937, No. 16622. Convention date, June 19, 1936. [Class 7 (iii)] The needle valve guide 2 of a fuel injector is attached to a plug 5 by a sleeve 4 which is held against a conical seating in the cylinder head 13 by a nut 14 bearing on a shoulder 15 on the plug. Fuel is supplied through a passage in a union terminating in a ring 6 which is held on a conical or cylindrical seat on the plug 5 by a nut 7.
Patent GB-572154-A (GB)
Title: Improvements in and relating to separable fasteners
IPC: A44B17/00
Filed: 1943-10-12
Abstract: 572,154. Fasteners. UNITED-CARR FASTENER CORPORATION. Oct. 12, 1943, No. 16696. Convention date, Oct. 1, 1942. [Class 44] In a press-button fastener, the stud 17 is guided in a channel 13 that has a cam 15 formed on its upper surface; a projection 20 prevents the stud leaving the channel. When in the position A, the socket 18 can be applied to the stud and when the fastener is moved towards the position B, the cam 15 raises the socket 18 to release the fastening. A spring may be included to press the stud towards position A. Specification 544,966 is referred to.
Patent GB-1267382-A (GB)
Title: Improvements in or relating to methods of manufacturing valves
IPC: F16K27/04
Filed: 1969-03-31
Abstract: 1,267,382. Cores; casting processes. HYKON-PATENT A.B. 31 March, 1969 [10 April, 1968], No. 16731/69. Heading B3F. [Also in Division F2] A valve is made by casting a valve housing 1 in one piece around a core 23 enclosing a valve member 5, removing the core 23 to leave the valve member 5 within the housing 1 and connecting an operating device 10 to the valve member 5. A cast iron, brass or bronze discshaped slide 5 is mounted on a rod 21 which is enclosed within the core 23 together with brass or bronze sealing rings 6, 7 detachably secured for example to annular sealing surfaces 8, 9 of the slide 5. The core 23 is formed with a pair of parallel grooves to form on the inner side of the housing 1 a pair of guide ribs (32), (Fig. 3, not shown), which are adapted to be engaged by studs (33) on the slide 5. After the core 23 has been removed from the cast iron housing 1, annular grooves 30, 31 are machined in the housing and the sealing rings 6, 7 positioned therein. The housing 1 is further machined to provide a hole 27 and internal threads on a drainage hole 28, whereupon a spindle 10 is mounted in the slide 5 and held in position by a washer 14 and a hub 15 of a hand wheel 11. Instead of using sealing rings 6, 7, valve seats may be machined on the flanges 34, 35 of the housing. A screw actuated lift valve (Fig. 4, not shown) may be made by the casting method.
Patent GB-200335-A (GB)
Title: Improvements in devices for use in cooling the air of rooms and the like
IPC: F24F5/00
Filed: 1922-06-16
Abstract: 200,335. Ching, W. T. W., and Craig, F. B. June 16, 1922. Cooling air by direct contact with cooling medium.-A casing having means for causing a current of air to pass therethrough is provided with supports for blocks of ice and is constructed, in whole or in part, of glass or other transparent or translucent material. Means are also provided for carrying away the water resulting from the melting of the ice. As shown in Figs. 1 and 2, the casing consists of sheets of glass A set in a metal or wood frame a having cross-members a<2> to which are rivetted rails a<3> adapted to support perforated trays b to carry the ice, which is preferably in the form of blocks B. A receptacle D is provided to contain the drip water and a drawoff tap may be provided. An electrically-driven fan c is arranged above the open top to force air through the casing and out at the openings a<4>. Hinged flaps or doors a<5> are provided to admit of the insertion and withdrawal of the trays and ice. The casing and supports may be so arranged that the water will pass down over the internal surface of the casing to increase the cooling effect. The apparatus may be provided with runners for convenience in moving and a lamp may be inserted for illuminating the interior. In a modification the casing is made of a cylindrical glass body part and the ice is placed on a perforated table capable of rotating in a bearing on a crossmember.
Patent GB-1362181-A (GB)
Title: Variation of the polarization of an electro-magnetic wave
IPC: G02B27/28
Filed: 1971-07-08
Abstract: 1362181 Rotating the plane of polarization D H MARTIN 8 July 1971 [8 April 1970] 16742/70 Heading G2J  Metallic mirrors 4, 5 rotatable about axis b-b, change the direction of polarization of an incident' beam that is retro reflected, also described is an uneven number of such mirrors giving an output beam parallel to and in the same direction as the incident beam.
Patent GB-256025-A (GB)
Title: Improvements in appliances for use in playing a game simulating golf
IPC: A63B67/02
Filed: 1925-06-30
Abstract: 256,025. Withers, G. H. June 30,1925. Outdoor games.-In apparatus for playing a lawn game simulating golf, and of the kind comprising a variety of obstacles over or through which a golf ball is to be played, the obstacles include a " niblick bunker," Fig, 5, consisting of a board f surmounted by an arch g, an " orifice bunker," Fig. 6, consisting of a net m surmounted by an apertured board h, a hoop or arches bar, Fig. 2, a " viaduct," Fig. 3, a " tunnel," Fig. 7, and a " cutting," Fig. 8. The set may include tins for insertion in the lawn to provide the putting holes.
Patent GB-568751-A (GB)
Title: Improvements in or relating to the treatment of metal surfaces prior to bonding rubber thereto
IPC: C08J5/12
Filed: 1943-10-13
Abstract: Plated metal surfaces, for example brassplated cast iron or mild steel, are, after leaving the plating bath and prior to bonding rubber thereto, cleaned by being subjected to the action of steam, either in a steam bath or by means of steam jets.  A solid rubber-tyred metal rim is produced by first sand-blasting degreasing, pickling in acid, and the washing the basis metal, whereupon it is brass-plated and washed in running water for a minute and finally subjected to steam jets for from two to ten minutes.  After drying and cooling, the plated surface receives a layer of rubber solution to which the rubber is then bonded. Flexible engine mountings can be produced in like manner.
Patent GB-587485-A (GB)
Title: Improvements in and relating to nuts
IPC: F16B39/284
Filed: 1944-09-04
Abstract: 587,485. Self-locking nuts. SECURITY MACHINE PRODUCTS CO. Sept. 4, 1944, No. 16859. Convention date, Sept. 3, 1943. [Class 89 (i)] Nuts are formed so that the radial strength decreases and the resilience increases from the bearing towards the crown face. The nut is distorted to render it self locking. A standard nut is provided on each face with a number, e.g. two, of slots 13 each parallel to a central radial plane and decreasing in depth towards the bearing face 15 as by being milled by a form milling-cutter with its centre at 16. After slotting, the nut is distorted so that the bore is slightly oval.
Patent GB-345573-A (GB)
Title: Improvements relating to metal boats
IPC: B63B3/00
Filed: 1930-05-31
Abstract: 345,573. Metal boats. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd. and PRITCHARD, P., Dartmouth Road, Smethwick, Staffordshire. May 31,1930, No. 16869. [Class 113 (ii).] Metal boats are made in at least two sections a, d united by an inclined transverse joint the abutting surfaces comprising the complementary flanges c, e. The rear of the forward section is extended aft in a tail f, which when assembled constitutes a step. Stiffening ribs b, g are provided.
Patent GB-602454-A (GB)
Title: Synthetic forsterite refractory shapes
IPC: C04B35/16
Filed: 1944-09-05
Abstract: A refractory material is prepared by bonding grains of forsterite by forsterite material formed from magnesia and silica. The grains may be prepared as in Specification 602,453, and the bond may either be formed in situ from finely-divided magnesia and silica or from finely-ground preformed forsterite material.  If desired, the bond material may also contain an excess of magnesia. The magnesia and silica are mixed together in the proportions of 57 : 43, or, if lime and iron are present as impurities, in the proportions of approximately 60 : 40 to convert the impurities into monticellite and magnesioferrite; the proportions are changed to 70 : 30 if excess magnesia is desired.  The ingredients are mixed with a small amount of water, together, if desired, with a bonding-agent such as magnesium chloride or sulphate, pressed into brick form, dried, and burnt at a temperature of 1450-1650 DEG C.; alternatively, instead of pressing, the mix may be heated as a slurry.  In another method, the magnesia and silica are melted together in an electric furnace.  In a further method, natural serpentines or olivines, which contain iron compounds, may be melted with magnesia and carbon, whereby the iron compound is reduced to ferrosilicon and removed.  The clinkers so produced are ground to 4.0-4.5mm. size, and the fine fraction up to 0.5mm. is removed.  The fines are made into a relatively-thin slurry and mixed with the grains in the proportion of 15-35 : 85-65, organic bonds such as sulphite waste liquor, tar, sulphite pitch or molasses, or inorganic bonds being added if necessary.  The mix is pressed at 1,000 lbs. per square inch, dried at 150-200 DEG C., and finally burnt.  Specification 579,098 also is referred to.