baber/WOPTO huggingface dataset:
Patent GB-561098-A (GB)
Title: Improvements in or relating to telephone or like systems
IPC: H04Q3/00
Filed: 1943-02-10
Abstract: 561,098. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., GILLINGS, C., and MURRAY, L. J. Feb. 10, 1943, No. 2207. [Class 40 (iv)] In a system in which a cross-bar switch with an individual control circuit plays the part of a group of incoming selectors, either dialled impulses are stored at the outgoing end of a junction, e.g. in a mechanical regenerator of the kind described in Specification 464,058, and are not sent until the cross-bar switch signals its readiness to receive them, or all the junctions are marked busy at their outgoing ends while any of them is being extended over the cross-bar switch or the common control circuit is off normal. First arrangement, Figs. 1 to 4, in which the transmission of impulses awaits a " ready " signal. This, apart from the arrangement of the select magnets 1GSP .. 10GSP on the incoming side, operates in substantially the same way as the first selector stage described in Specification 560,732. When a junction is seized, nothing occurs in the group selector stage unless the common equipment is in its normal position, as indicated by contact n3, and all the incoming select magnets GSP are unenergized. If this condition is fulfilled, the corresponding select magnet operates over the negative lead and connects ground over relay A to the positive lead to signal to the outgoing repeater, which may be of the kind shown in Figs. 4 and 5 of Specification 467,442, that it may begin to send the stored digits. When the connection has been extended as described in Specification 560,732, relay 1K, 2K, '&c. releases the corresponding GSP relay, the common circuit is restored and, in due course, the relapse of N completes the chain circuit over which the GSP relay of another junction can be energized. Second arrangement, Figs. 5 and 6, in which the junctions are marked busy while one of them is being extended through the switch. The junctions are marked idle by the connection of battery over relay TB to the P-wire. On the seizure of a junction, its relay TB connects ground to the + wire and at the incoming end this ground is extended from a common point 18 and contacts such as 1gsr3, 1k4 to the + wires of all idle junctions leading to the switch. At the outgoing ends of these junctions, the relays JCB pull up and remove the idle battery mark from the associated P wire. In the seized repeater, OA pulls up over the loop and is followed by OB, JX, JZ at the outgoing end and 1GSP, 1GSR, A, B at the incoming end. JZ cuts off JX and ground is thus removed from the + wire but is kept on the + wire of the idle junctions over contact b7. When the outgoing trunk has been selected, A and B fall back but the ground connection is maintained on the + wires of the idle junctions over contact n5 until the common control circuit is in its normal condition.
Patent GB-967935-A (GB)
Title: New polyurethane compositions
Inventor: CROWLEY GERALD PATRICK
IPC: C08K3/00
Filed: 1962-01-22
Abstract: The hardness of a polyurethane composition may be increased by incorporating into said composition a conventional rubber filler of particle size between 10 and 150 millimicrons in amount 5-60% of the weight of the polyurethane and a filler of larger particle size such that of the three dimensions of each particle, each measured at right angles to the other two, at least two of these dimensions will be between 10 and 300 microns in amount 10-60% by weight of the polyurethane.  The conventional rubber filler may be silica, carbon black, calcium carbonate, calcium or aluminium silicate, china clay, whiting or any other material known in the art, or mixtures thereof. The filler of larger particle size may be: silica, nylon, polyethylene terephthalate, glass or mica or any other material known in the art.  This filler may be used in a particle size in which no dimension is greater than 300 microns and may be obtained by grinding, crushing, chopping or milling. The fillers may be incorporated separately or together before or after curing, by mixing on a two roll rubber mill or an internal mixer. Polyurethanes prepared from polyisocyanates and polyesters, polyethers, polyester amides, polyhydric alcohols, aminoalcohols, and polyamines may be used.  The composition may contain polymeric materials in addition to polyurethanes. The product after curing may be shaped by compression, extrusion, wrapping on a mandrel, followed by grinding and machining to shape.  They may be bonded to metals, e.g. steel, brass and aluminium by means of bonding agents or obtained in sheets by calendering. Other ingredients: pigments, plasticizers, factices, crumb rubbers, antioxidants and curing catalysts may be added. In an example stearic acid, finely divided silica, silica sand of particle size 10-24 microns and red iron oxide were mixed with a polyesteramide-diisocyanate reaction product on a mill, mixed with additional isocyanate and cured. The composition may be used for: shoe heels, solid tyres, self lubricating bushes and bearings, engine mountings and testing rubbers.
Patent GB-606998-A (GB)
Title: Improvements in or relating to safety devices for runaway railway trucks
IPC: B61K7/20
Filed: 1946-01-23
Abstract: 606,998. Railway stops. McGREAVIE, T. Jan. 23, 1946, No. 2209. [Class 104 (ii)] Runaway trucks are stopped by an overhead pivoted beam 9 tripped into the path of the car, a dash-pot or other time-lag being provided to prevent its operation during normal running. The time-lag mechanism is released by a primary striker and the pivoted beam is tripped by coupled secondary strikers, which also re-set the time-lag mechanism, the secondary strikers being disconnected from the beam by the timelag mechanism after a normal interval of time. The primary striker 28, Fig. 1, releases a catch from a lever 24 engaging the weight 20 of the dash-pot 21, the weight then tripping a treadle 14 so as to lift catch 11 from engagement with a slide 13. Unless catch 11 is so lifted, actuation of slide 13 will cause the catch to rotate shackle 10 and free the clamp 2. This releases a ring 5 which is connected by a cable 6, Fig. 8, to a lever 7, on one arm of which is hung the chain 8 of the beam 9. The advanced secondary striker is coupled to a striker 34, Fig. 9, carried by a pivoted arm 35 which has a pin 40 working in slots 41, 43 in the slide and re-setting bars 42, 44. Slide bar 42 is connected by a rod 45 to slide 13. Re-setting bar 44 is connected through a spring coupling 46 to a rod 47 and arm 48 of lever 24. The slots 41, 43 permit the passage of trucks in the reverse direction.
Patent GB-204261-A (GB)
Title: Improvements in, or relating to, pneumatic suction conveying plants
IPC: B65G53/66
Filed: 1923-01-25
Abstract: 204,261. King, H. J. H. Jan. 25, 1923. Pneumatic conveyers.-In pneumatic suction conveying plants having several nozzles, the aperture through which the material passes from a hopper to a nozzle is automatically opened and closed as the hopper is filled and emptied, and a supplementary air port may be correspondingly opened and closed at the same time. The hopper C is supported by a pair of levers D and a pair of arms h which can turn about an axis d. The levers D are connected by vertical rods e and a cross-bar f with counterweights g and a tension spring g'. A casting E attached to the hopper has an aperture k and a closing plate m and is curved so as to remain in contact with the corresponding curved end of the nozzle b and plate j as the hopper turns about the axis d. One lever D carries a cover n for the supplementary air inlet F.
Patent GB-900337-A (GB)
Title: Method of producing alloy weld coatings
IPC: B23K9/04
Filed: 1961-01-20
Abstract: 900,337. Welding by fusion. ARNOLDY, R. F. Jan. 20, 1961 [Feb. 1, 1960; June 27, 1960], No. 2318/61. Class 83 (4). [Also in Group II] An alloy coating is produced on a metal base by depositing a measured quantity of alloying constituents on a predetermined area of the base, creating an arc between an electrode and the alloying constituents, and controlling the rate of melting and traversing of the electrode to produce a coating of the required composition. The base B is divided into strips by marks 18 and powdered alloy is deposited on one of the strips from a measuring trough 12. The powder is flattened using the base 14 of the trough 12 and is covered with granular flux F. A fusible ductile electrode 25 submerged in the flux F but spaced from the powder is traversed at a predetermined rate using a predetermined current electrode feed and electrode extension (say 1“ inches) to produce a weld bead covering the strip. Alternate strips A-1, A-2 are coated and subsequently the intervening strips A-3 are coated in similar manner. Open arc welding or gas shielded arc welding with, say argon or carbon dioxide, may be used. Specified powder constituents are chromium, molybdenum, vanadium, silicon, manganese, carbon, cobalt, tungsten and boron. The electrode may be iron, cobalt, aluminium, copper, silver, nickel or titanium or alloys including one or more of these metals. Examples of alloy coatings produced with iron or steel electrodes on a steel base are:- The base may consist of two workpieces with the coating covering the seam.
Patent GB-413587-A (GB)
Title: Improvements in the manufacture of cigarettes
IPC: A24C5/18
Filed: 1933-07-20
Abstract: 413,587. Cigarette-making machines. PODMORE, A., 58, Holborn Viaduct, London. July 20, 1933, No. 2324/34. Divided on 407,017. [Class 130.] In a continuous-rod machine in which the rod is formed with alternate dense and less dense portions by the provision of spaced increments of tobacco additional to the normal supply, the increments as they are delivered to the travelling web are given a movement in the direction of and preferably at the speed of the web. As shown, an auxiliary feed shoot 5, preferably at the rear of the main shoot 6, is supplied with tobacco by a pin wheel and a picker roll, which may be extensions of the main pin wheel and picker roll. At the lower end of the shoot 5 the tobacco is fed to the travelling web 7 by a rotary drum 10 having side flanges and vanes 11 forming with the curved wall 12 of the shoot a pair of measuring compartments. The drum is driven through chain gearing 17, and may be driven intermittently through a Geneva-stop drive, preferably at such a speed that the increment of tobacco, as it is delivered to the web, moves at substantially the same speed as the web. The vanes 11 are provided with a cutting edge co-operating with a spring-pressed backing roll 18 as described in Specification 410,718. In a modification, Fig. 3, the auxiliary supply of tobacco is delivered through a shoot 5 upon an endless conveyer 25 travelling on drums 26, 27 and provided with spaced blocks 28. The conveyer is perforated and is mounted between side walls to form a suction chamber. The portions of tobacco are thus held on the conveyer until they pass the edge of a baffle 32, when they are deposited upon the web 7.
Patent GB-957871-A (GB)
Title: Fractional distillation of liquid mixtures
IPC: F25J3/04
Filed: 1962-01-23
Abstract: 957,871. Fractional distillation. GES. FUR LINDE'S EISMASCHINEN A.G. Jan. 23, 1962 [Jan. 26, 1961], No. 2356/62. Heading B1B. [Also in Division F4] Fractional distillation of a liquid mixture is carried out discontinuously whereby ascent of the vapour and descent of liquid in the rectification zone 3 take place alternately at relatively short intervals of time. As applied to air rectification (see Division F4) the column 3 has a gaseous nitrogen effluent conduit 17 provided with an automatically timed valve 18 which when closed momentarily results in a gas pressure build-up in the column head which forces washing liquid downwardly through the apertures of a series of vertically spaced horizontal perforated plates 4 extending across the whole cross-sectional area of the column.
Patent GB-1446943-A (GB)
Title: Carrier tray for catering system
IPC: A47G23/06
Filed: 1973-01-25
Abstract: 1446943 Catering systems; oven trays BATEMAN CATERING ORGANISATION Ltd 18 Jan 1974 [25 Jan 1973] 02375/74 Divided out of 1446941 Headings A4D and A4T The subject matter of this Specification is wholly contained within that disclosed in Specification 1446941 but the claims relate to a carrier tray for supporting groups of food containers.
Patent GB-963818-A (GB)
Title: Improvements in or relating to electric switchfuses
Inventor: ROBINSON JOHN ROBERT
IPC: H01H9/10
Filed: 1961-01-20
Abstract: 963,818. Cam-operated switches. GENERAL ELECTRIC CO. Ltd. Jan. 19, 1962 [Jan. 20, 1961], No. 2379/61. Heading H2B. A single-phase double-pole switch fuse comprises a porcelain base 3 carrying live terminals 4, 5 and neutral terminals 6, 7 and a fuseholder (Figs. 1 and 2, not shown) which has blade contacts engaging terminal 5 and a contact 13. A shallow arcing well 15 is lined with asbestos material 16. Clamped to the respective terminals 4 and 6 are strips 20 and 22 which carry moving contacts 19 and 23 for co-operation with fixed contacts 18 and 24 respectively mounted on terminal 7 and contact 13 (by means of its fixing screw 14). Strips 20 and 22 pass on either side of a cam 27 carried on a spindle 28 which is journalled in the base 3 and has a triangular section at its upper end for engagement with an operating handle mounted in the removable lid of a pressed steel casing enclosing the switohfuse (Figs. 1 and 2, not shown).
Patent GB-595079-A (GB)
Title: Improvements in and relating to fireplaces
IPC: F24B1/195
Filed: 1946-01-17
Abstract: 595,079. Open fireplaces. SMITH, W. H. Jan. 17, 1946, No. 2399/45. [Class 126] In an open fireplace, the firebrick back and cheeks have substantially horizontal ridges b and d of curved cross section, situated above vertical grooves e in the fireback.
Patent GB-1208341-A (GB)
Title: Recovery of residual product in hydrocarbon oxidation process
Inventor: MARCELL R L
IPC: C07C29/52
Filed: 1968-01-16
Abstract: 1,208,341. Partial oxidation of hydrocarbons. HALCON INTERNATIONAL Inc. 16 Jan., 1968 [17 Jan., 1967], No. 2411/68. Heading C2C. A process for the partial oxidation of a hydrocarbon with molecular oxygen in the presence of a boron comopund comprises hydrolysing the effluent from the oxidation, which contains unreacted hydrocarbon and borate esters of the corresponding alcohol, with water to form an organic phase containing unreacted hydrocarbon and the bulk of the alcohol and an aqueous phase containing the boron compound and the residual amount of the alcohol, passing the organic phase to a distillation zone operated at pressure to separate the unreacted hydrocarbon from the bulk of the alcohol and steamstripping a portion of the aqueous phase in a stripping zone under pressure and passing the vapours obtained to said distillation zone, thereby separating the residual amount of the alcohol along with the bulk of the alcohol. Suitable reactants are saturated C 4-20  hydrocarbons, particularly cyclohexane, the preparation of which is exemplified. The corresponding ketone is formed as a by-product of the oxidation and is recovered with the bulk of the alcohol from the organic phase after hydrolysis.
Patent GB-546661-A (GB)
Title: Improvement in process for producing anhydrous magnesium sulphate which may be subsequently converted into crystallized epsom salt
IPC: C01F5/40
Filed: 1941-02-24
Abstract: 546,661. Anhydrous magnesium sulphate. AMERICAN ZINC, LEAD & SMELTING CO. Feb. 24, 1941, No. 2507. Convention date, Feb. 23, 1940. [Class 1 (iii)] Anhydrous magnesium sulphate is produced from a natural substantially pure simple magnesium silicate such as serpentine by mixing with it sulphuric acid of approximately 77 per cent. concentration, preferably in an amount equivalent to the magnesium-calcium content and stirring until the reaction is completed.
Patent GB-792345-A (GB)
Title: Improvements in the manufacture of composite articles
Inventor: BRAZIER LESLIE GIDDENS
IPC: B29C70/68
Filed: 1955-01-27
Abstract: In the manufacture of composite articles having parts composed of different materials including a part made of an elastomer compound of the kind which can be shaped when in a soft plastic condition and on subsequent heating increases in tensile strength and elasticity, and a part made of a material which would be softened, deteriorated or destroyed by the heat treatment necessary to bring about the desired change of properties in the elastomer, an equivalent change in properties of the elastomer to that which would normally be obtained by heating is obtained by subjecting the article to high energy irradiation, particularly high-speed electrons.  The elastomer may be natural rubber, polychloroprene, a butadiene-styrene copolymer, or a polysiloxane or polysulphide rubber, and the other material may be polyethylene.  The composite article may be an electric cable. Specifications 766,802 and 782,442 are referred to.ALSO:In the manufacture of composite articles having parts composed of different materials including a part made of an elastomer compound of the kind which can be shaped when in a soft plastic condition and on subsequent heating increases in tensile strength and elasticity, and a part made of a material which would be softened, deteriorated or destroyed by the heat treatment necessary to bring about the desired change of properties in the elastomer, an equivalent change in properties of the elastomer to that which would normally be obtained by heating is obtained by subjecting the article to high energy irradiation, particularly high-speed electrons.  The elastomer may be natural rubber, polychloroprene, a butadiene-styrene copolymer, or a polysiloxane or polysulphide rubber, and the other material may be polyethylene.  The composite article may be an electric cable. Specifications 766,802 and 782,442, [both in Group III], are referred to.ALSO:In the manufacture of composite articles having parts composed of different materials including a part made from a natural or synthetic rubber vulcanizable by heating, and a part made of a material, such a polyethylene, which would be softened, deteriorated or destroyed by the heat necessary to vulcanize the rubber, the rubber is vulcanized by subjecting the article to high energy irradiation, particularly high speed electrons.  The composite article may be an electric cable.  Specifications 766,802 [Group III] and 782,442 are referred to.
Patent GB-1046142-A (GB)
Title: Electret and method for its manufacture
IPC: H01G7/02
Filed: 1965-01-20
Abstract: 1,046,142. Polyethylene terephthalate electret. PHILIP MORRIS Inc. Jan. 20, 1965 [Jan. 21, 1964], No. 2570/65. Heading H1M. An electret is formed from a polyethylene terephthalate body by heating the body to 90-170‹ C. for at least a minute, subjecting the body at this temperature to an electric field of 0À5-300 kilovolts per centimetre for 0.15 sees. to 1000 hours, cooling the body in the electric field and removing it from the field. The body may be in the form of a film or disc or it may be doughnut, dumb-bell or pyramid shaped. It may contain minor amounts of other materials, e.g. it may be coated with silicone resin or P.T.F.E., or may contain semi-conductors or ferro electrics such as barium or calcium titanate. Several disc-shaped bodies may be formed into electrets in a single operation, the individual discs being orientated with flat surfaces parallel and separated by aluminium foil. The formed electret may be stored wrapped in aluminium foil. The electrets of the invention can be employed in electrostatic filters, dosimeters, microphones, electrometers and vibration meters.
Patent GB-829101-A (GB)
Title: Improvements in magnetic workholders
IPC: B23Q3/154
Filed: 1956-01-26
Abstract: 829,101. Magnetic workholders. PANTON, J. R., and WEBB, A., [trading as PANTON & WEBB.]. April 25, 1957 [Jan. 26, 1956], No. 2573/56. Class 60. [Also in Group XXXV] A magnetic workholder comprises a block 1 of permanent magnets 9 mounted in a housing 2 for movement relative to the top work holding surfaces thereof by means of a spindle 16 which is mounted transversely in the housing and is provided with an eccentric portion 15 engaging the arms 14 of a U-shaped member 13 provided at one end of the magnetic block, whereby the block is moved to render the surface alternately operative and inoperative. The block 1, which consists of alternate magnets 9 and magnetic flux transmitting pieces 10 insulated from each other by members 11, and member 13, are held together by a bolt 12, and are slidable between the upper and lower plates 4, 7 of the housing 2 ; the upper plate 4 consists of pole pieces 5 separated by non-magnetic material 6. In the operative position, the magnets 9 and pieces 10 are aligned with the pole pieces 5 so that flux from each magnet passes through a pole piece, the work, a second pole piece, the piece 10 and lower plate 7 back to the magnet, and in the inoperative position, as shown in Fig. 2, the pole pieces provide a direct path from the magnets to the pieces 10. The means for actuating the spindle 16 which is generally flush with the side walls of the housing comprises a boss 20, Fig. 3, provided with a handle 21, a transverse key 22 to fit a groove 17 in the spindle, and an axially-projecting bolt 24 arranged to be screw-threaded into an axial bore 18 in the spindle. An extension rod may be fitted between the end of the spindle and the boss 20 so that the workholders may be operated when a workpiece overlaps the plate 4. Similar rods may connect a plurality of workholders . together for simultaneous operation by a boss member 20 and handle 21 from one side of the workholders.
Patent GB-797249-A (GB)
Title: Improvements in or relating to tables
IPC: A47B3/12
Filed: 1957-01-24
Abstract: 797,249. Tables. GIUSTI & SON, Ltd., T., and GIUSTI, R. B. Jan. 24, 1957, No. 2576/57. Class 52(3) A collapsible table consists of a top 1 having at each corner a threaded socket 5, four legs 6 having at their upper ends threaded parts to take into the sockets, and a stay member 8, 9 having apertures so that it can be detachably connected by bolts to lugs 7 on the legs which are thus locked in position. The threaded connection allows adjustment of the leg lengths for levelling. Four uprights 11 having tray runners 12 are bolted to brackets 10 on the underside of the table top.
Patent GB-926091-A (GB)
Title: Pumping plants having protected pressure pipelines
IPC: F04D13/16
Filed: 1961-01-23
Abstract: 926,091. Water supplies. SULZER FRERES S.A. Jan. 23, 1961 [Feb. 10, 1960], No. 2646/61. Class 68 (1). [Also in Group XXIX] A pumping plant having a pressure pipe line 3, Fig. 1, with a non-return valve 5 at the pump end thereof is provided with a device for protecting the pipe line. The device comprises a surge tank 7, connected to the line 3 by a pipe 6 fitted with a non-return hinge valve 8 and a bypass 10 round the valve 8 fitted with a valve 12 loaded by a weight 11. If pressure in the pipe line 3 drops below that in the tank 7, liquid will immediately flow past the valve 8 into the pipe line 3. Before liquid can flow from the pipe line 3 to the tank 7, the pressure difference must exceed a predetermined value dependent on the weight 11. The valve 8 or the valve 12 is provided with a throttling aperture 9 to prevent oscillations being set up in the system. In the embodiment shown in Fig. 2, a single valve member 21 is provided to replace the two valves 8, 12. The valve member 21 is pivoted at 20 and is loaded by a weight 24 when flow is from right to left, but a stop 25 prevents the weight acting when the flow is from left to right.