baber/WOPTO huggingface dataset:
Patent GB-1427745-A (GB)
Title: Synthetic smectite compositions
IPC: C09D7/00
Filed: 1973-05-16
Abstract: 1427745 Synthetic smectite compositions N L INDUSTRIES Inc 16 May 1973 [26 May 1972] 23399/73 Heading C1A [Also in Divisions C6-C7] A synthetic saponite-like mineral composition has the following formula per unit cell +yMg(O,OH) and in which the function within the outer brackets constitutes the unit cell and yMg(O, OH) is of an accessory phase occluded therewith. The variables x, y and a may be with the preferred values being close to x equals 0À5, y equals 1, and a equals zero. M is the charge-balancing cation having a valency of 2, and is preferably the sodium ion, but may also be any other alkali metal or alkaline earth metal cation (e.g. potassium, lithium or calcium) or ammonium ion or substituted ammonium ion. The process of preparing a synthetic smectite mineral composition comprises forming an aqueous slurry containing mixed hydrous oxides of silicon, aluminium, magnesium, and M or the fluoride of M, and heating this slurry in an autoclave at 100-325 C. The products of the invention can be used for drilling mud additives, as thickeners and thixotropy inparting agents for water based paints, for the clarification of beer, &c., for coating paper, for use in lubricating greases, and as catalysts.
Patent GB-510385-A (GB)
Title: Tank arrangement for aircraft
IPC: B64D37/04
Filed: 1938-08-10
Abstract: 510,385. Arrangement of tanks in aircraft. ARADO FLUGZEUGWERKE GES. Aug. 10, 1938. No. 23557. Convention date, Sept. 1, 1937. [Class 4] An aircraft tank 2 is mounted, e.g. in a float, fuselage or wing, by means of transverse frames 1 and brackets 6 secured to the skin or longitudinal joints of the member in which the tank is mounted. The tank is arranged with its longitudinal axis in the direction of flight.
Patent GB-1130457-A (GB)
Title: Improvements to solid-state laser
IPC: H01S3/042
Filed: 1966-05-26
Abstract: 1,130,457. Lasers. INTERNATIONAL STANDARD ELECTRIC CORP. 26 May, 1966 [26 May, 1965], No. 23630/66. Heading HIC. A laser device includes a body 14 of active material contained in a first compartment B of a housing, the laser radiation path passing through one or more further compartments A, C which are separated from the first so that turbulence in fluid contained in the first compartment has little effect on fluid in the other compartments. A fluid, e.g. water, having a refractive index close to that of the material of flash tube 15 and also close to that of the active medium, e.g. ruby, is introduced at 18 to cool reflector 19, flash tube 15 and ruby rod 14. Bulkheads 6, 7 prevent turbulence being transmitted between the compartments, which are, however, in communication through drain ducts 21 to 24. The laser resonator mirrors are mounted in end walls 8, 9, and the refractive index of the coolant also preferably approximates to that of the mirrors. An antimist device 29 is provided at the output end and consists of a glass tube closed by a Brewster window 30. In a second embodiment the single ruby rod is replaced by three separate rods, each with its own flash tube and cylindrical reflector, the rods being longitudinally aligned and spaced apart by sleeves which prevent the coolant fluid surrounding the rods from circulating between the rods. The optical absorption characteristics of the coolant in compartment B may be matched to the desired pumping frequency for the laser body and it may contain fluorescent material. A different fluid may be circulated in compartments A and C if the compartments are sealed one from another, and in the second embodiment the second fluid may also be circulated inside the sleeves between the laser rods.
Patent GB-1095125-A (GB)
Title: Improvements in electrical bridge circuits
IPC: G01R17/10
Filed: 1965-06-03
Abstract: 1,095,125. Measuring bridge circuits. L. SEYMOUR. May 10, 1966 [June 3, 1965], No.23650/65. Heading G1U. In order to extend the range of operation of an A. C. bridge circuit for measuring a temperature variable resistance VR1 the resistance is connected into the primary winding L1 of a transformer whose secondary L2 is connected into the bridge circuit. The bridge is then balanced against the reflected impedance of the resistance being tested, and by using a suitable transformer turns ratio, this reflected impedance can be kept within a range suitable to the bridge.
Patent GB-810999-A (GB)
Title: Leak detector for a pipe
Inventor: GLENNY ARTHUR PHILIP
IPC: G01M3/04
Filed: 1957-07-26
Abstract: 810,999. Indicating leakages. SPERRY GYROSCOPE CO. Ltd. July 26, 1957, No. 23764/57. Class 99(2). In a device for detecting a leak in a pipe 1 carrying a pressure fluid, a sleeve 4 which provides a sealed space 6 around the pipe has at least a part thereof of flexible material which is distensible by pressure in the space, that part having wound therearound an electrical conductor which will break if the distention exceeds a certain amount. As shown, the pipe 1 extends between fittings 2, 3 and is surrounded by an oil-resistant, synthetic rubber, sleeve 4 sealed to the fittings by clips 5 and defining a sealed, annular space 6. A greater part of the length of the sleeve is wound with inflexible tape 7 ; the uncovered part 8 of the sleeve is distended by the leakage of pressure fluid into the space 6, such distention being detected by the breakage of the electrically-conductive wire 9 of low tensile strength connected to a visual warning indicator. In modifications, (a) a small rod is inserted between the pipe 1 and the sleeve 4 if the latter is almost in contact with the pipe and to provide a fluid channel, and (b) the wire 9 is wound over the whole length of the sleeve.
Patent GB-1430429-A (GB)
Title: Telephone system with ringing-path detector
IPC: H04Q3/00
Filed: 1973-05-18
Abstract: 1430429 Automatic exchange systems PLESSEY CO Ltd 22 April 1974 [18 May 1973] 23768/73 Heading H4K A called subscriber line is tested for a valid ringing loop during the first cycle of ringing current and if such a loop is absent a fault signal is given.  A valid loop is considered to be a capacitor and magneto bell in series. In operation a relay X closes contacts X1, X2 to initially connect continuous ringing current from a supply CR, -50 v. via a balanced bridge network R1-R6, C1, C2, and a switching network path to the called subscriber line, a relay INT closing a contact INT1 to supply interrupted ringing current after a short period of time, e.g. 300 ms. If the line terminates for a valid ringing loop, the point VA remains positive with respect to the point VB throughout the first positive cycle of ringing current. Transistors T1 and T2 are switched to be ON and OFF, respectively and relay RD is operated to prepare a ring trip circuit of the kind disclosed in Specification 1,396,768, by connecting resistor R7 in series with resistor R6, resistors R1, R6, R7 constituting part of the ring trip circuitry. Transistor T5 therefore conducts to give a valid ringing loop indicator to the central processor on wire DOK, the processor responding to cause ringing tone to be supplied to the calling line. If a valid ringing loop is not present point VA never goes more positive than point VB during positive ringing half-cycles. Relay RD therefore remains unoperated and transistor T5 remains OFF to give a non-valid loop indication to the central processor. Ringing tone is not supplied to the calling line and the ringing current to the faulty called line is disabled. A second attempt to set up the connection may then be made as the fault could be in the switching network speech path and not on the subscriber's line. A fault indication tone may be supplied to the calling line. The arrangement may be incorporated in the exchange of Specification 1,393,156.
Patent GB-1090544-A (GB)
Title: A brake mechanism
IPC: F16D65/09
Filed: 1965-06-03
Abstract: 1,090,544. Internal shoe drum brakes. WAGNER ELECTRIC CORPORATION. June 3, 1965 [July 31, 1964], No. 23796/65. Heading F2E. An internal shoe drum brake for a steerable wheel of a vehicle comprises an anchor pin 41 which is detachably attached to a steering knuckle 10 and-has a reduced.portion 5$engaged in a keyhole-shaped slot in a backing plate 40, which is separately secured to the knuckle against a face 24, and a wheel cylinder 45 which is detachably attached to a flange .portion.-55 of the anchor pin and has a boss portion 81 engaged in the larger portion of the keyholeshaped ,slot, after assembly of the anchor pin. The knuckle 10 includes a spindle portion 11 on which a hub 12 is journalled, the latter haying riveted to it a disc portion 15 of a drum 21 formed .by securing an annular drum portion 22 to the periphery of the disc portion. Studs 17 are provided on the hub for the attachment of wheel disc 18. The anchor pin engages by a shoulder 54 an integral lug on the knuckle which is offset to one side of the steering axis, a reduced portion extending into a counterbore in the lug being provided with a tapped bore in which a securing bolt 53 is received. After the pin has been-fitted the backing plate 40 is fitted on the pin by the large portion of the keyhole slot being passed over the pin and the smaller part of the slot then being engaged with the reduced,portion 58, after which the cylinder 45 is secured to the flange portion 55 by bolts 85 passed through slots in the backing plate expending radially from the large slot portion, with its boss 81 engaged in the large portion of the slot. Bolts and nuts 42 are then fitted to secure the backing-plate against the face 24 of the knuckle. The anchor pin carries a rotatable anchor plate 60 and also a retainer plate 62 having arms extending over the ends of the shoe webs (Fig. 1, not shown). The end of the pin is formed at 63, 64 as an anchorage for a pair of return springs connected at their other ends to the respective shoes, the springs retaining the plates 60, 62. The shoes are connected at their ends opposite the anchor pin by the usual floating strut incorporating an adjuster, and a spring, so as to operate as servo shoes. The usual hold down spring clips 47 and pins 46 (Fig. 1. not shown) are also provided.
Patent GB-599343-A (GB)
Title: Improvements in followers for operating latches
IPC: E05B15/00
Filed: 1945-09-15
Abstract: 599,343. Latches. LEGGE & CO., Ltd., J., and LEGGE, J. E. Sept. 15, 1945, No. 23853. [Class 44] A latch bolt follower A has a ring D of hard metal secured round that part of its boss which passes through the usual slot in the latch C or runner of the latch bolt, so that the inner edges c<1> of the slot bear on this ring ; thus, no appreciable wear takes place, and the rest of the followers may be formed as a die-casting of relatively soft metal such as zinc base alloy. A split ring of spring steel may be used.
Patent GB-1346309-A (GB)
Title: Manufacture of steel
IPC: B22D11/00
Filed: 1971-04-19
Abstract: 1346309 Continuous casting CENTRO SPERIMENTALE METALLURGICO SpA and TERNI SOC PER L'INDUSTRIA E L'ELETTRICITA SpA 19 April 1971 [19 May 1970] 23857/71 Heading B3F Si-steel to be subsequently worked and heattreated to obtain a grain-oriented sheet or strip for magnetic use, is cast by pouring it, at 1540-1600‹ C., into a continuous casting mould cooled by water flowing at 2À8-4À0 cu.m./ton of steel. The steel, with additives, is stirred in a ladle by argon and passed by way of submerged nozzles and a tundish to moulds where a slag layer of CaO, SiO 2 , Al 2 O 3  and CaF 2  is added for protection. The mould water flow is said to be a minimum to effect casting and the S content of the casting is said to be 90% of that of ingot cast steel for the same purpose and the C content 0À01% more. A 900 Î 140 mm. slab is produced in a copper mould 1500 mm. high at 800 (initially 840) kg/min. For secondary cooling, water is sprayed in a first zone at a rate of 0À16-0À24 cu. m./ton of steel and in subsequent zones at 0À04-0À10 cu. m./ton.
Patent GB-486490-A (GB)
Title: Method for the manufacture of sintered dolomite
IPC: C04B35/03
Filed: 1937-09-01
Abstract: Dolomites and magnesites are burnt and slaked to a milk, which is centrifuged, or filtered or otherwise treated to remove excess water, then dried and thereafter sintered.  In general no additions are made to the materials, but iron compounds to regulate the sintering temperature or magnesium hydroxide to alter the magnesia content may be added to the milk.ALSO:Dolomites and magnesites are burnt and slaked to a milk, which is centrifuged or filtered or otherwise treated to remove excess water, then dried and thereafter sintered. In general no additions are made to the materials but iron compounds to regulate the sintering temperature or magnesium hydroxide to alter the magnesia content may be added to the milk.
Patent GB-1013473-A (GB)
Title: Recovery of cs values from aqueous basic solutions
IPC: C22B26/10
Filed: 1963-06-17
Abstract: Cesium values contained in an aqueous alkaline solution are extracted by treatment with a water-immiscible organic solvent phase consisting of an orthophenyl phenol, an orthobenzylphenyl or a para-substituted alkyl phenol, wherein the alkyl substituent contains from 9-20 carbon atoms, dissolved in an organic diluent to a concentration of at least 0.5 molar.  The cesium rich organic phase is then stripped of its cesium preferably by treatment with a dilute acid, e.g. nitric, hydrochloric, sulphuric, acetic and citric.  The efficiency of the separation may be improved by scrubbing the cesium-rich organic phase with a dilute alkali, and when using highly alkaline feed material it is advantageous in order to conserve the phenol extractant to add some acid to the raffinate layer of the last extracting stage and return the phenol so produced to the extracting process.  Specific phenols exemplified are orthophenyl phenol, paradodecylphenol, 4-chloro-2-phenyl phenol and 4-sec.-butyl, 2-(alpha methyl benzyl) phenol.  The process may be used for extracting cesium from its ores, or for extracting Cs137 from the radioactive waste produced in the processing of irradiated nuclear fuel elements.
Patent GB-1142595-A (GB)
Title: Process for the preparation of a substituted alanine
Inventor: REINHOLD DONALD FLOYD
Filed: 1967-05-23
Abstract: 1,142,595. L - α - Methyl - # - (3,4 - dihydroxyphenyl)-alanine. MERCK & CO. Inc. 23 May, 1967, No. 23951/67. Heading C2C. The title compound is prepared by hydrolysis of the corresponding isomer of a compound of the formula (wherein R and R<SP>1</SP> are each H, alkyl or phenyl- C 1-5  alkyl; and R<SP>2</SP> is alkyl) with a hydrohalic acid at a temperature of at least 60 C.
Patent GB-987041-A (GB)
Title: Float operated valve
Inventor: JONES GORDON ROBERT
IPC: F16K31/32
Filed: 1962-06-21
Abstract: 987,041. Valves. BALMFORTH ENGINEERING Ltd. June 13, 1963 [June 21, 1962], No. 23997/62. Heading F2V. A float-actuated valve controlling the flow of liquid into a tank 6, comprises a body 1 having a rotatable valve 13 provided with a port 14 which co-operates with a passageway 2. A float arm 16 is connected to the valve 13 and carries a float 17 which may be of varnished cork. The valve member has a port 21 to provide lubrication and equalize pressures. The body 1 is screw threaded into the tank and is provided with a thread 8 to receive a hose. The body also provides a stop for the float arm. A device may be provided which operates a signal with a rise in pressure after the valve has closed. A cap may be provided for the body to prevent ingress of dirt.
Patent GB-1388337-A (GB)
Title: Apparatus for measuring magnetic field direction
IPC: G01C17/28
Filed: 1973-05-21
Abstract: 1388337 Measuring heading electrically NORTH ATLANTIC INDUSTRIES Inc 21 May 1973 [18 Aug 1972 4 Oct 1972] 24158/73 Heading G4H [Also in Divisions H3 and G1] Apparatus for sensing the direction of a magnetic field, e.g. the horizontal component of the earth's field, comprises sensor means having a primary and a plurality of secondary windings, means for energizing the primary to produce secondary signals which are a function of the direction between the field and the orientation of the sensor, means for combining the secondary signals to provide a signal having a phase proportional to the direction of the sensor relative to that of the field and means responsive to the phase of this signal to provide an indication of the direction of the sensor relative to that of the field.  As shown, a marine compass comprises a clock source 10 the output of which is divided at 11 to provide an 800 Hz reference signal which is further divided by flip-flop 12 and converted to a 400 Hz triangular wave by integrator 13. The output (sin. wt.) is used to excite the primary of flux sensor 14 which has two secondaries which supply outputs of the form sin # sin 2 wt.; cos # sin 2 wt. where # is the course of the ship relative to magnetic north. The former signal is 90 degrees phase displaced at 15 and the two signals are added at 18 to provide sin (# + 2 wt.). This signal is filtered at 19 and introduced at one input of comparator 20 of a phase-locked loop. If the loop is not in balance, a voltage output is filtered at 21 and applied to a V.C.O. 22 where the output is combined with the signal from clock source 10 to modify the frequency thereof which modified signal is divided as at 11 to provide an output of a changing phase proportional to the error signal. This output is divided again at 23 and passed back to the comparator 20 via zero detector 34 to complete the loop. The output from flip-flop 23 is taken to AND gate 35b and the clock reference is taken to AND gate 35a both gates being enabled twice a second by the output of multivibrator 49. A leading edge at the output of gate 35a starts counter 35 to count the undivided pulses from source 10, and a leading edge from gate 35b stops this count to provide a digital representation of heading at 37. The output of flip-flop 23 is also applied to EX-OR gate 24 and integrator 26 to provide a saw-tooth waveform 90 degrees out of phase with that derived from integrator 25, and these signals are also inverted at 27, 28 to provide 4-phase displaced signals which are applied to resistive phase-changer 29, as shown. The desired course is set by the slider 38 and the actual course information is contained in the phase of the inputs to 29. When the ship is on the required course, the output to comparator 40 will be sin(wt+0) and a null output from this comparator which has the reference signal as its other input indicates this condition.
Patent GB-1040487-A (GB)
Title: Drying apparatus for meal or powders of various kinds
IPC: F26B17/00
Filed: 1963-06-18
Abstract: 1,040,487. Drying apparatus. L. VIDALI. June 18, 1963, No. 24194/63. Heading F4G. Apparatus for drying meal or powders comprises a series of superposed, stationary metal discs 14, 15 mounted in an upper drying chamber 17 which are heated by hot water circulating therethrough and also by air from an intake 8 in the chamber wall which passes under the influence of a fan 1 therebetween after passage through a heater 3, the material falling by gravity to the next lower disc by scrapers 11 having associated brusher on a rotary shaft 19. The discs are alternately of larger and smaller diameters and the scrapers pass the material from the periphery of the smaller discs 14 on to the larger discs 15 and through central orifices 21 therein back to the smaller discs. Two series of discs are utilized in superposed or side by side relationship. In the superposed form, as shown, the dried material passes via a hopper 22 into a lower, cooling chamber 23, wherein ambient air only is drawn by the fan 1 over the material cascading from discs 24 to discs 25 for final collection through a hopper 28.
Patent GB-532279-A (GB)
Title: Improvements in electrical junction boxes, switch boxes and the like
IPC: H02G3/08
Filed: 1939-08-24
Abstract: 532,279. Switch cases. CONDUIT FITTINGS, Ltd., HOCKHAM, J., and SMITH, J. Aug. 24, 1939. No. 24344. [Class 38 (v)] [Also in Group XXXVI] The conduit connections to the box are adapted for use with either circular or non-circular conduit. The sides 5 of the box have non- circular openings to any of which a socket 6 can be fitted, conduit 7 being secured therein as described in Specification 532,278. In addition each corner has an outwardly-projecting enlargement 5a that is drilled and tapped to receive conduit of circular section. The openings not in use are closed by dished metal plates 13a that can be prised out. An upper frame 10 attached to the box has an internal flange to seat a cover 11 which is recessed, levelling screws 16 being provided for sunk mounting.
Patent GB-388680-A (GB)
Title: Improvements in or relating to mechanism for operating clutches
IPC: B60K23/02
Filed: 1932-09-01
Abstract: 388,680. Operating clutches. CLAYTON DEWANDRE CO., Ltd., Titanic Works. Lincoln, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. Sept. 1, 1932, No. 24392. [Class 80 (ii).] In fluid-actuated clutch-control mechanism, the fluid flow during clutch engagement is so governed by a valve automatically responsive to changes in the force exerted by the mechanism as to allow a rapid initial movement, which is retarded at or about the instant when the clutch begins to take up load. In one form, applied to an engine-suction servomotor 2, 3, Fig. 1, coupled to a motor vehicle clutch pedal 1, a piston valve 4, operated by the accelerator or other pedal 5 or a hand-lever, controls communication between the cylinder 3 and the suction conduit 6 or an atmospheric conduit 7 with a spring-loaded valve 8. When the valve 4 is moved to the left, air flows freely until the cylinder pressure has risen to that corresponding to light contact of the clutch members, when the valve 8 closes, the remaining movement of the piston 2 being checked by the slow passage of air through a restricted opening 10. In a modification, the piston 2 and an atmospheric valve 11, Fig. 2, are connected to the clutch pedal 1 by a link 13 and balance lever 12, a spring 14 being designed to close the valve 11 when the pull on the piston 2 has fallen sufficiently to allow contact of the clutch members. A byepass orifice 10 is again provided. Abnormal movement of the valve 4 may uncover a port 19, Figs. 1 and 2, to cut out the dashpot effect when desired. Fig. 3 shows a form in which the atmospheric port 7a governed by the valve 4 is unrestricted and a valve 15, loaded by an adjustable spring 17 and bridged by a small byepass 18, is inserted in the conduit 15a between the cylinder 3 and valve 4, closure of the valve 15 by its spring occurring on appropriate decrease of vacuum in the conduit acting on a flexible diaphragm or bellows 16. By modifying the servomotor and reversing the action of the automatic valve, the system can be adapted for use with compressed air.
Patent GB-834547-A (GB)
Title: A pouring construction for use with petrol and oil containers and the like
IPC: B65D47/06
Filed: 1955-08-25
Abstract: 834,547. Spouts for portable containers. MALPAS, C. H. July 31, 1956 [Aug. 25, 1955], No. 24459/55. Class 66. A pouring construction for containers comprises a neck 6, Fig. 4, with an inturned lip 8, and a spout 5 of resilient material slidable in the neck and having a circumferential groove 11 which will tightly engage with the lip 8 when the spout is withdrawn from the neck 6. At its outer end the spout has a flange 12 that acts as a seal when the spout 5 is pushed down, Fig. 2, and a screw cap 13 is applied to the neck. The spout may be of polyethelene and have an end membrane that has to be broken before liquid can be poured from the container. An inwardly projecting finger grip may be formed in the spout for withdrawing it from the neck.