baber/WOPTO huggingface dataset:
Patent GB-387654-A (GB)
Title: Improvements in woven fabrics having paper weft
IPC: D03D25/00
Filed: 1931-05-04
Abstract: 387,654. Woven fabrics with paper wefts. DURAN, F. A., 8, Rua Fontanella, Barcelona, Spain. May 4, 1931, No. 13114. Convention date, May 3, 1930. Void [Published under Sect. 91 of the Acts]. [Class 142 (iv).] A fabric is woven with a paper weft which is impregnated during the weaving with a liquid for giving flexibility, such as a waterproofing solution containing aluminium sulphate, and lead acetate. The paper weft may be armoured. Artificial silk or like warp threads are used. The fabrics may be embroidered or figured in gold thread and silk, or silver thread and silk.
Patent GB-689167-A (GB)
Title: Improvements relating to the jointing of precast reinforced-concrete structural members
IPC: E04B1/58
Filed: 1949-05-17
Abstract: 689,167. Reinforced concrete. KOCH, A. May 17, 1949, No. 13140/49. Class 20(iv) The opposed surfaces of a joint intermediate the points of support of precast reinforced concrete structural members are arranged in end to end pressure relationship, transmitting the compressive stresses resulting from the normal bending, shearing or torsion forces acting at the joint and steel reinforcements are joined together coaxially to take up tensile stresses, the abutting forces of the webs are at right angles to the central plane of the members and of zig-zag or wave-like shape for taking up transverse forces, or if flat are indented to take up compressive stresses resulting from sheering forces at the joint. The abutting ends of two parts of a T- section reinforced concrete girder are perpendicular to the central plane; the face of the top boom a may be inclined or dovetailed, that of the web b of zig-zag or other indented shape and the concrete in the bottom boom c is omitted from either or both parts to expose the reinforcement bars 8 for interconnection. The rod ends may be formed respectively with right and left screw threads and screwed into a coupling member 10, or with bored ends into which a coupling rod is screwed. Loosening of coupling may be prevented by split pins or grouting. A coupling nut in the form of a box having two hinged parts locked in closed position by pins may be made to connect adjacent reinforcements, the ends of which are almost in contact.
Patent GB-551801-A (GB)
Title: Improvements relating to gas meters
IPC: G01F15/00
Filed: 1941-10-13
Abstract: 551,801. Gas meters. UNITED GAS INDUSTRIES, Ltd., and SIMPSON, S. Oct. 13, 1941, No. 13155. [Class 54] Water or other liquid deposited in a dry gas meter may be withdrawn on the removal of a valve plug 2 from a valve body 1 fitted at the lower part of the meter casing. The plug 2 has a leather or rubber facing 3 and is normally held against its seating by a threaded plug 5 formed with a square or polygonal recess 7 in its upper face for the insertion of a removal key. A cap 8 may be secured by a pin 9 and sealing wax above the plug 5. The upper part of the valve aperture communicates by a pipe 16 with a diaphragm chamber and the lower part directly or through a separate passage way with the meter casing. Alternatively the liquid may be discharged through a three-way or other valve of the tapered plug type. A valve body fitted with a single valve may be connected to all four measuring chambers of the meter.
Patent GB-646030-A (GB)
Title: Improved process for the production of cigarette paper
Filed: 1947-05-15
Abstract: 646,030. Cigarette paper. ECUSTA PAPER CORPORATION. May 15, 1947, No. 13160. Convention date, April 25, 1946. [Class 96] An alkali, e.g. caustic soda, which may be partly or wholly neutralized, e.g. by phosphoric acid, is added to paper pulp, e.g. at the stuffchest or at the beater, for making cigarette paper, so that the ash is of light colour and does not flake off. Other alkalies mentioned are: lithium, potassium, rubidium, caesium, or quaternary ammonium hydroxides, e.g.tetraethanol ammonium hydroxide, or the alkali may be added as lime and sodium carbonate in which case sodium hexametaphosphate or other polyphosphate may be added to reduce clotting. Specification 646,031 is referred to.
Patent GB-788525-A (GB)
Title: Improvements in or relating to the recovery of zinc from the zinc crust obtained in the separation of silver from lead
IPC: C22B7/00
Filed: 1956-04-30
Abstract: 788,525. Distilling zinc; producing lead alloy. SOC. MINIERE & METALLURGIQUE PENARROYA and LEFERRER. F. April 30, 1956 [May 20. 1955], No. 13168/56. Class 82(1) [Also in Group XII] / Zinc crust (an alloy containing Ag. Zn and Pb) obtained in the operation of silver from lead is enclosed in an air tight furnace 6 and its temperature raised to 750- 850‹C. by electric resistors 3. The Zn vapour is conducted through an air tight passage 20 to an air tight condenser 13, the furnace, passage and condenser being maintained at a pressure of 3-12 mm. Hg. The condensed Zn 17 is maintained automatically at a temperature of 420-450‹C. on the one hand by exchange of heat between the furnace, passage and condenser, and on the other hand by a regulating device which is controlled by the condenser temperature, and itself controls the electric resistors. The supply of heat to the alloy is cut off manually or automatically when a sudden rise in furnace temperature to about 1000‹C. indicates that there is no more Zn in the furnace. Substantially pure Zn is collected from the condenser and substantially Zn-free alloy from the furnace. If the zinc crust initially has a melting point above 800‹C., lead is added to reduce it. The regulating device may be  a thermo-couple 16 immersed in the condensed Zn and connected by a relay to the electric resistors. The condenser is fitted with a starting heater 15, and the furnace also has a thermo-couple to provide an indication of its temperature. In an example, zinc crust containing 50 per cent Zn, 19.25 per cent Ag, 29.25 per cent Pb and 1.5 per cent Cu was treated to produce Zn containing 1 per cent Pb and 0.15 per cent Ag, and Pb containing 38 per cent Ag, 3.5 per cent Cu, 1 per cent Zn, and 0.5 per cent impurities.
Patent GB-768985-A (GB)
Title: Driver's brake valve for fluid pressure braking apparatus for railway and like vehicles
IPC: B60T15/04
Filed: 1955-05-06
Abstract: 768,985. Fluid pressure railway brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. May 6, 1955 [May 7, 1954], No. 13174/55. Addition to 739,785. Class 103 (1). A driver's brake valve for railway fluidpressure braking systems of the kind described in the parent Specification, is modified to take account of the fact that, with very long trains of 80 vehicles or more, although the control handle may have been moved to the " running position " in which the main reservoir feeds the brake pipe through the relay valve part, the release of the brakes on the vehicles at the rear of the train depends on the time the driver had left the brake valve in the first position. The new arrangement provides for two further positions of the valve, a limited overcharge position as shown in Fig. 2, and an overcharge reduction position as shown in Fig. 3. In the limited overcharge position, Fig. 2, the pressure in the main reservoir RT acting below a supplementary piston 72 increases the force acting on the piston 39 and therefore produces in the brake pipe CG a pressure which is greater than that which is given by the pilot valve portion 2 in the chamber under piston 39. In the overcharge reduction position, Fig. 3, air under pressure below piston 72 is allowed to escape to atmosphere through exhaust choke 90 so that ultimately only pressure in chamber 3 below acts on piston 39 and pressure on the brake pipe CG becomes equal to normal.
Patent GB-554818-A (GB)
Title: Improvements in and relating to the construction of flooring
IPC: E04B5/04
Filed: 1942-09-19
Abstract: 554,818. Floors. MATHEWS, C. B., and AMBROSE, J. G. Sept. 19, 1942, Nos. 13246 and 14350. [Class 20 (iv)] Concrete tiles 1, which may have wood faces, are supported upon concrete beams 4 stiffened by concrete cross struts 9, and concrete skirting blocks 10 are arranged to overlap the tiles around the edges of the floor. Wood strips 7 on the bottom of the beams support plaster boarding or laths 8. Felt or other vibration absorbing material 5 is interposed between the beams and the tiles and between the skirting blocks and the floor and walls.
Patent GB-132903-A (GB)
IPC: B66B19/06
Abstract: 132,903. Automatic Telephone Manufacturing Co., and Remington, C. Oct. 8, 1918. Mine signalling systems.-Relates to mine signalling systems in which cancelling-relays are employed which cause the electric circuits of certain lamp or other signals to be opened only when the winding-engine comes to rest after movements made in response to such signals. Such a system is described in Specification 118,330. The invention consists in a device which can be substituted for the dynamo driven from the winding- engine, which, according to the aforesaid Specification, maintains the energization of one of the cancelling-relays as long as the engine is running. A disk 6 carrying peripheral contacts 7, Figs. 1 and 3, is revolved by suitable gearing while the engine is running. The angular relationship of the spring plunger brushes 11, 12 is such that they do not both make contact with tha segments 7 at the same time. The relays 20, 21 are thus energized alternately as the disk rotates. These relays are, however, slow to release their armatures, and, as soon as a certain (slow) speed of the disk is reached, each relay is energized before the other can release its armature, and consequently the circuit of the slow-acting relay 22 becomes closed. The relay 22 controls the cancelling-relay 23 of the system described in the aforesaid Specification, the signals being cancelled only when the armature of the relay 23 falls back. The slow-acting relay 22 may be dispensed with.
Patent GB-312907-A (GB)
Title: A process for preparing thymol
IPC: C07C37/16
Filed: 1929-04-29
Abstract: 312,907. Rheinische Kampfer-Fabrik Ges. June 1, 1928, [Convention date]. Addition to 293,753. Thymol is prepared by heating m-cresol under pressure with propylene-yielding materials, such as propyl alcohol, dipropyl ether, propyl halides or the corresponding isopropyl compounds. The propylene-yielding material may be added in portions, the water or hydrogen halide liberated being removed by distillation after each addition. When using propyl or isopropyl halides, the hydrogen halide formed may be fixed by means of added metal oxides, such as zinc or magnesium oxide; otherwise no condensing or dehydrating agent is employed. The thymol is separated by fractional distillation from the isomers which may also be formed. Examples are given. Specification 308,681 is referred to.
Patent GB-746282-A (GB)
Title: Improvements in or relating to extension ladders
IPC: E06C5/16
Filed: 1953-05-13
Abstract: 746,282. Internal shoe - drum brakes. MATTHEWS, C. H. July 14, 1954 [May 13, 1953], No. 13307/53. Class 103 (1). [Also in Group X] A brake on a ladder turntable (see Group X) comprises a pivoted shoe 9, faced with brake lining material, which is applied to the channelbase of an inwardly facing circular track 4, against a spring 10, by axial movement of a shaft 12 as a projection 15 on its handle 11 rides up a fixed disc-cam 13 when the handle is operated; a spring plunger 17 engages in one of a number of apertures in the member 13 to lock the brake on; according to the Provisional Specification the brake may be operated by a screw rotated through a ratchet.
Patent GB-1144716-A (GB)
Title: Method of producing rhodium concentrates
IPC: C01G55/00
Filed: 1967-03-22
Abstract: 1,144,716. Concentrating rhodium solutions. USTAV NEROSTNYCH SUROVIN. 22 March, 1967 [29 March, 1966], No. 13336/67. Heading C1A. Acid solutions containing low concentrations of rhodium are concentrated by passage through an anion exchange resin in hydroxyl or weak acid form. The resin neutralizes the acid and precipitates the rhodium as a band of rhodium hydroxide and basic rhodium salts which progresses down the column by dissolution in further acid and precipitation on subsequent layers of resin. In this way the rhodium is concentrated into a band on the resin and may be recovered as cationic Rh by eluting with either more acid rhodium solution or dilute sulphuric acid, the resin being subsequently regenerated. The rhodium concentrate may be eluted on to a second similar column to which further such concentrates from the same or different first stage columns are subsequently added producing a still more concentrated band from which the rhodium may be recovered as above. The solutions treated may be rinsing waters which have been used for rinsing objects removed from an electrolytic rhodium plating bath. The rhodium free solutions obtained from the bases of the columns may then be recycled to the rinsing stage.
Patent GB-646880-A (GB)
Title: Improvement in automatic telephone systems
IPC: H04Q3/00
Filed: 1948-05-18
Abstract: 646,880. Automatic exchange systems. AUTOMATIC ELECTRIC LABORATORIES, Inc. May 18, 1948, No. 13433. Convention date, June 3, 1947. [Class 40 (iv)] In an exchange having subscribers entitled to different classes of service, a subscriber of either class can obtain access to a trunk to a remote exchange, but in the case of a restricted subscriber further dialling results in the release of the trunk and the transfer of the call to an operator's position. Two sub-stations T1, T2 of the non-restricted and restricted classes respectively are shown connected to a single party line 30. Assuming that T1 dials a first digit denoting a call to the remote exchange 20, the connection is extended by means of a line finder 52 and a selector 53 to an idle secondary trunk 100. A line relay R140 operates, followed by a hold relay R150, and a switch 190 hunts, driven by a magnet M195 over wiper 193. On finding an idle trunk 84, the switch 190 stops, and a highresistance slow-operating test relay 180 busies the trunk 84 over wiper 193 and seizes trunk circuit 82 by placing a loop across trunk 84 through a winding of a polarized answer relay R120 which does not operate at this stage. Further dialling impulses are repeated by the line relay R140 over trunk 84 and trunk circuit 82 to control switching apparatus 83 at the remote exchange 20 and complete the connection to the called subscriber T3, a dialling bridge across trunk 84 being established by a dial relay R160. If the restricted subscriber T2 attempts to call the remote exchange 20, the trunk 84 and trunk circuit 82 are seized as above, but, during the dialling of the second digit, off-normal springs 25 of the dial apply earth over both line wires, operating a differential detector relay R130 followed slowly by an intercept relay R170. Relay R130 breaks the circuit of test relay R180 which thereupon releases the seized trunk 84, and the battery over magnet M195 is transferred from wiper 193 to wiper 194. Switch 190 hunts over wiper 194 under the control of magnet M195 until an idle trunk 90 is reached, when the switch 190 stops and test relay 180 once more operates, seizing the trunk 90 and its associated trunk circuit 91 which signals the call to an interceptor operator 95.
Patent GB-514412-A (GB)
Title: Improvements in or relating to conductors for high-frequency electric cables having air-space insulation
IPC: H01B11/18
Filed: 1938-05-05
Abstract: 514,412. Cables. SIEMENS & HALSKE AKT.-GES. May 5, 1938, No. 13464. Convention date, May 5, 1937. [Class 36] An air space cable comprises a conductor 10 spaced from a surrounding layer 13 by means of one or more spacers each comprising a continuous flexible carrier 11 and one or more elements 12 wound with spaced turns on the carrier 11, the carrier or each carrier being of insulating material which is less suitable for high frequency insulation than the material of which the element or elements 12 is or are made. The carriers 11 may be of paper or hard rubber and the elements 12 of polystyrol or polyvinyl chloride. The layer 13 of insulating material is surrounded by grooved outer conductor bands 14, 15, a conductive band winding 17, an insulating band winding 18 and a water-tight jacket 19. In another form, Fig. 2, the conductor 20 is spaced from an insulating layer 23 by means of elements 22 of polystyrol wound on carriers 21 of polyvinyl chloride and the layer 23 is spaced from another insulating layer 26 by means of elements 25 of hard rubber or polyvinyl chloride wound on carriers 24 of paper. The cables may comprise more than two concentric conductors or may include twisted pairs or quads.
Patent GB-134861-A (GB)
IPC: B61L3/18
Abstract: 134,861. Carlisle, H., and Carlisle, W. July 25, 1918. Controlling different functions; power apparatus.-Relates to apparatus for automatically applying the brakes of a train and simultaneously shutting off the steam supply to the locomotive engine cylinders when two or more trains enter the same section of the track. Upon the approach of two trains, the circuit is completed through a magnet 11 on the locomotive through track conductors 7, whereby a slide valve 22 is actuated to admit compressed air from a reservoir 21 to a valve cylinder 31 through a passage 23. The valve piston 32 is thereby actuated to supply air to the brakes through passage 38 and a pipe 37. and to shut off the steam supply through the pipe 41 by closing the valve 40 connected by rod 44 to piston 32. When the train has stopped, the circuit is broken by a hand-switch 43<1>, and springs 29, 43 then return the valves 22, 32, 40 to the normal positions shown, in which the cylinder 31 is open to atmosphere by the passage 24 and port 31<a>. The current is supplied by a storage battery 12 charged by a generator 13.
Patent GB-236354-A (GB)
Title: Improvements in or relating to supplementary air inlet valves for internal combustion engines
IPC: F02D9/00
Filed: 1924-06-04
Abstract: 236,354. Heath, A. E. June 4, 1924. Valves controlled by pilot or relay valves.-Air is admitted to the induction pipe H of an internal-combustion engine by a valve F controlling air inlets D and carried by a diaphragm J operated by suction transmitted from the mixing-chamber of the carburettor by a pipe M and chamber B, the degree of suction being regulated by a hand-operated relief valve P mounted at a distance and controlling the admission of air through a pipe N to the chamber B.
Patent GB-1416900-A (GB)
Title: Combination condenser-degasse-deaerator for a desalination plant
IPC: B01D19/00
Filed: 1973-03-21
Abstract: 1416900 Combined degasser/deaerator/condenser GENERAL ELECTRIC CO 21 March 1973 [22 March 1972] 13673/73 Headings BIB and B1M In a combined degasser/deaerator/condenser 21 Fig. 1 for a multieffect desalination plant 1, chemically tested feed water from 38 is passed into chamber 44 from where it sprays through nozzles 37, Fig. 2, to form a thin film on the inside of fluted tubes 30, whence the water passes via chamber 23 and pump 28 to plant 1. Uncondensed vapours from plant 1 are conducted via conduit 34 to flow round the outside of tubes 30, and condensed vapour passes to distillate from plant 1 in vessel 25. Uncondensed and non condensible vapour is withdrawn by vacuum system 39.
Patent GB-934724-A (GB)
Title: Improvements in or relating to silos
IPC: A01F25/16
Filed: 1961-04-15
Abstract: 934,724. Silos. N. FINCH. July 16, 1962 [April 15, 1961], No. 13677/61. Class 5(1). A silo for containing and dispensing bulk forage comprises an enclosure 10 the front wall of which is formed by removable wall sections 18 each provided with a shaft 22 extending parallel to the upper edge of the wall and slidable in a bracket 21 fixed to the enclosure supports 11 so that the section 18 may be raised to form a dispensing slot 31 at the base of the silo, the wall 18 also moving outwardly away from the forage in the silo to form a feed shaft down which forage is passed to the slot 31. A wall 32 and bar 33 are provided near the base of the wall 18 and form together with an inner wall 30, a manger into which forage is fed. A hinged filling hatch 16 is provided at the top of each end wall of the silo and automatic means may be provided for cutting forage at the top of the silo and feeding it to the manger.
Patent GB-1465549-A (GB)
Title: Signal transmitter
IPC: G04F8/08
Filed: 1974-03-27
Abstract: 1465549 Time-alarm signalling arrangements TRAPARK AB 27 March 1974 [28 March 1973] 13688/74 Heading G3T A timed-alarm signalling arrangement for handicapped or elderly persons, to attract the attention of outsiders in the event of illness or an accident in the home, comprises a signal transmitter which produces an output signal when a switch on an electric appliance or light is actuated. If this signal does not occur before expiry of a predetermined time set by a timer (not shown), then operation of an alarm by the timer is effected. The transmitter, Fig. 1, comprises a current transformer 3, 4, the rectified output of which controls a transistor 10 which produces an output signal to reset the timer (not shown). In a further embodiment Fig. 3 (not shown) the output of transistor 20 is amplified and then applied to the timer. An embodiment Fig. 2, for use with D.C. supplies, includes a coil 15 coupled to a magnetic core 16 having magnetically variable resistor 17 in an air-gap thereof. Current in coil 15 varies R17 to produce an output signal from an amplifier 18 which is applied to the timer. Alternatively the opening of the switch 2 may be sensed and used to produce the signal to reset the timer.
Patent GB-271510-A (GB)
Title: Improvements in or relating to radio transmission systems
IPC: H04B1/04
Filed: 1927-05-21
Abstract: 271,510. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Kroger, F. H.). May 22, 1926, [Convention date]. Thermionic amplifiers and generators.-In a transmitter comprising a thermionic oscillation generator and a thermionic amplifier the amplifier is excited by connecting its grid circuit to the grid circuit of the oscillator and means are provided to prevent self-oscillation of the amplifier. The Figure shows parallel connected valves 1, 2, which with the circuit 22, 23 form a generator of the Hartley type. Parallel connected amplifying valves 3 - - 8 supply energy to an antenna through a coupling 28, 29. The grids of the generating and amplifying valves are biased through inductive grid leak combinations 16, 17 and keying and audio-frequency interrupting means are indicated at 35. The plates of the amplifying valves 3 - - 8 are connected through a condenser 34 to an additional tap on inductance 22 so that the oscillatory voltage applied to it due to inherent capacity is neutralized by a voltage of reverse phase.
Patent GB-248602-A (GB)
Title: Improvements in or relating to making oxidized leaden powder
IPC: B22F1/145
Filed: 1925-05-26
Abstract: 248,602. Hall, C. A. May 26, 1925. Lead oxides.-In the production of oxidized lead powder by treating lead in a rotary drum with air, cooling liquid is applied to the drum to prevent the temperature rising too high. Lead balls are fed from a hopper 4 to a drum 1 into ' which air is blown by a fan 2, the air-stream being regulated by a damper 14. Water is discharged from a pipe 5 upon the outside of the drum, which is furnished with a thermometer 13. The product is carried by the air-stream into a chamber 6 having a screen 15. The fine material passes through the screen 15 and is discharged by a door 7 while the coarser material is discharged by a door 8. The air leaves the chamber 6 by a pipe 9 and passes through a trap 10 in which some of the product settles, and thence to a fabric filter 11.