baber/WOPTO huggingface dataset:
Patent GB-1119252-A (GB)
Title: Fail safe control system
Inventor: GALIN LEO LAURENCE
IPC: B61L23/06
Filed: 1966-04-12
Abstract: 1,119,252. Gang warning device. OMNITRONIC CORP. 12 April, 1966, No. 15845/66. Heading B7N. [Also in Divisions G4 and H4] A system for operating a warning device, e.g. for a gang working on a railway track, includes a control circuit which operates to keep the warning device inoperable so long as a predetermined sequence of control signals of differing frequencies is received but if any of the frequencies are not received at the appropriate time causes the warning device to be operated, thus providing a " fail safe " arrangement. As described the control signals (two different tones) are generated in a portable radio transmitter and modulate a carrier wave alternately as by cam-operated switches driven by an electric motor. The transmitter may use pulsed carrier to conserve the battery in which case the R/F pulses must be synchronized with the application of the modulating tones. In a further embodiment the tone signals are selected alternately via gates controlled by a multivibrator. The output of the transmitter may be controlled by a spring-loaded switch, or alternatively automatic sensing devices may be used to detect the approach of a train. Conventional transistor circuitry is used. The receiver may be a normal superheterodyne receiver including a pair of tuned circuits selecting the tone signals which after rectification and smoothing hold a pair of relays operated. If either or both relays release a warning device is operated. An alternative arrangement includes a double superheterodyne radio receiver which feeds parallel filters which operate a pair of relays alternately as the tone signals occur. This causes a pair of red lights to flash on alternately so long as the control tones recur normally, but if a tone is absent, the corresponding red light will remain on. The relays control further relays so that when the two tones are being received correctly a green light remains on and a loudspeaker circuit is muted. If either of the tones is absent the green light flashes and if both tones cease the green light is off. The absence of one or both tones causes a two-tone generator to supply a warning to the loudspeaker. Press-button switches are provided for testing the warning circuit.
Patent GB-110804-A (GB)
Title: Improvements in or relating to Stoves.
Inventor: PEASE EDWARD LLOYD
IPC: F24B7/02
Filed: 1916-11-06
Abstract: 110,804. Pease, E. L. Nov. 6, 1916 Air-heating stoves.-In a stove of the type having vertically arranged air channels between the outer casing and the brickwork lining, the channels are formed of strips of sheet metal dished or bent to channel section, or of an equivalent bent or corrugated plate, the strips or plate being, upon insertion, flattened, flexed or similarly stressed to fit closely against the lining. A sheetmetal sheathing may be fitted within the strips or plate. As shown in Fig. 3, the channels are constructed by bending a plate to form ribs e. Strips with the edges bent up may be similarly arranged, or the edges may be inwardly inclined as shown in Fig. 5 to leave outer channels d' of triangular section. As shown in Fig. 6, a corrugated plate @e<2> forms the channels. Channel-shaped strips may be set in the lining as shown in Fig. 7, and they may be placed horizontally as shown in Fig. 8 The air heated in the lower part of the casing may be delivered to the ash-pit, a horizontal partition h being fitted in the casing, as shown in Fig. 2.
Patent GB-944243-A (GB)
Title: Yarns, especially monofil yarns, based on polyamino caproic acid, and methods for the manufacture of these products
IPC: D01F6/60
Filed: 1960-05-05
Abstract: 944,243. Making polyamino caproic acid yarns. ONDERZOEKINGSINSTITUUT RESEARCH. May 5, 1960 [May 13, 1959], No. 15955/60. Heading B5B. Polyamino caproic acid yarns having a total titre of up to 5.5 tex (especially monofils having a titre of less than 3.35 tex), a shrinkage in boiling water of at least 9% and a specific birefringence which does not permanently decrease as a result of a temporary elongation of the yarn of 20% are produced by stretching melt-spun polyaminocaproic acid yarns at an average thread temperature of 140‹ to 160‹ C. in a single operation by using one or more snubbing pins maintained at an internal temperature of 100‹ to 110‹ C., preferably 105‹ C. The term polyaminocaproic acid is defined as including the polyamide which may be prepared from caprolactam. Specific birefringence is defined as the difference between the refractive indices measured along and perpendicular to the axis of a filament in the unswollen condition. The 20% elongation of the yarn may be effected in about 5 seconds. The birefringence of the yarn is determined immediately after its production and again after an interval of at least four weeks. The thread temperature is measured by guiding the thread for a distance of half an inch over a slightly arcuate metal strip which is embedded in a heat insulating material and the temperature of which is measured with thermocouple. The metal strip is surrounded ay an electrically heated brass block which is also embedded in the heat insulating material and is in contact with a second thermocouple. The temperature of the brass block is raised until the difference of potential between the thermocouples is zero and the temperature of the strip as indicated by its thermocouple is then considered to be the thread temperature. The snubbing pins may be heated by means of internal electric heating elements or by passing a heated liquid through a duct in the pin. Knitted goods prepared from yarns of the invention have wider stitches and a smaller snag tendency than polyaminocaproic acid yarns which have been stretched, using unheated snubbing pins even when the yarns of the invention have not been washed with hot water.
Patent GB-185828-A (GB)
Title: Improvements in or relating to preparations for cleansing and sterilising textile fabrics and other materials
IPC: C11D13/20
Filed: 1921-06-09
Abstract: To remove ink, iodine, paint, &c. stains from fabrics, the stain is treated alternately with a solution of a soap powder and a 5 per cent solution of hydrogen peroxide.  The powder is obtained by saponifying 53 1/2 parts by weight of a mixture of equal parts of palm-oil and coker-nut-oil with 31 1/2 parts of sodium carbonate and 15 parts of water, at 38-45 DEG  C., evaporating excess moisture, and grinding the cooled, solid product.  2 per cent of ultramarine may be added to the product.ALSO:A powder for washing fabrics &c. is obtained by saponifying 53 1/2 parts by weight of a mixture of equal parts of palm-oil and coconut-oil with 31 1/2 parts of sodium carbonate and 15 parts of water at 38 DEG -45 DEG  C., evaporating excess moisture, and grinding the cooled solid product.  Two per cent of ultramarine may be added to the product.  To remove ink, iodine, paint, or other stains from fabrics, the stain is treated alternately with a solution of the powder and a 5 per cent solution of hydrogen peroxide.
Patent GB-1374068-A (GB)
Title: Method and apparatus for detecting leakage from pipelines
IPC: G01M3/00
Filed: 1973-04-04
Abstract: 1374068 Detecting leaks in pipes M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 4 April 1973 [8 May 1972] 16084/73 Heading G1S To detect any leakage of a liquid such as a petroleum product from a pipe line 10 between remote stations A and B, e.g. a marine platform and a shore station, each station has a metering pipe loop 15, 21 through which the line flow is made to pass, a sphere is launched into the inlet end of each loop, and the time taken for each sphere to travel between fixed detectors 35 and 36, 47 and 48 in the loop is measured by devices 34, 46, the time measurements for the loops then being compared by a computer 45 coupled to a read-out or alarm device 51. If a leak exists in the line 10 the measurements are different after allowances, if any, for density, temperature and pressure fluctuations and loop size differences between the stations. The stations A and B can communicate with one another by a direct cable connection or, as shown, by radio communication via micro-wave antennae 31, 41. In  use, when an operator at station B causes a controller 44 to initiate operation of the loop 21, a signal is transmitted via antennae 41, 31 to controller 17 to simultaneously initiate operation of the loop 15. Subsequently the time measuring device 34 sends a signal back via the antennae to computer 45 to be compared with the time measured by device 46. In an alternative arrangement Fig. 2 (not shown) each station has a programming tuner (56), (57) driven by synchronous electric motors and initiating measuring cycles at the two stations at regular intervals.
Patent GB-123024-A (GB)
Title: Improvements in or relating to Packing for Pistons or Buckets for Pumps.
Inventor: BARCLAY JAMES ROBERTSON
IPC: F04B53/14
Filed: 1918-10-04
Abstract: 123,024. Barclay, J. R., and Barclay, A. W. Oct. 4, 1918. Pistons; piston packing.- The piston or bucket of a pump, e.g. a boiler-feed pump, is packed by vulcanite or ebonite rings 2 expanded by split metal rings 3, which may be of phosphor bronze. The piston is shown built up of disks.
Patent GB-938462-A (GB)
Title: Improvements in portable recorders
IPC: G11B5/00
Filed: 1962-04-27
Abstract: 938,462. Magazine tape recorders. SOUND SCRIBER CORPORATION. April 27, 1962 [June 6, 1961], No. 16150/62. Class 40 (2). [Also in Groups XXIV and XXXV] A magnetic recorder is contained partly in each of two interfitting part cases 20, 31, one, 20, containing a governed drive motor 46 (see Group XXXV), a head 42, amplifiers 49, controls and a slipping clutch assembly 44 (see Group XXIV), the other, 31, forming a magazine containing two coaxially supported spools 30, 32, driving engagement between the spool 30 and the clutch 44 being provided by a pin 90 when the part cases are interfitted, Fig. 4, and locked by latch means 40. Upon interfitting, spool brake means 38 are disengaged, the head 42 urged into the bight 134 of the tape T, while a resiliently-mounted pinch-roller 36 is rocked into driving engagement with a capstan 64. Alternatively, a pair of the magazines may be interfitted, Fig. 5, to form a closed container for two spare spooled tapes. The head 42 is adjustable in azimuth by a sprung screw 146 in conjunction with two aligned and sprung ball-screws 142, 144 and sockets 141, 143.
Patent GB-1221525-A (GB)
Title: Rubber compositions
Inventor: ROBERTS FRANK SOMERVILLE
IPC: C08K3/00
Filed: 1967-11-10
Abstract: 1,221,525. Compounding latices with fillers. DURIE & MILLER (HOLDINGS) Ltd. 6 Nov., 1968 [10 Nov., 1967; 4 April, 1968], Nos. 51224/67 and 16150/68. Headings C3C, C3P and C3Q. A rubber latex has added thereto a surfactant until a loose agglomeration of the solid particles of the latex is caused, thereafter curing agents and an inert filler are added and thoroughly mixed. The mixture may then be foamed, set and cured. The rubber may be natural or synthetic or a mixture thereof. The surfactant is preferably a sulphate or sulphonate and the amount added is typically about 3% solid by weight of latex solids.
Patent GB-555258-A (GB)
Title: Improvements in or relating to installations for the heat treatment of metals and other materials
IPC: C21D9/663
Filed: 1942-11-17
Abstract: 555,258. Heat-treatment furnaces. ELECTRIC RESISTANCE FURNACE CO., Ltd., MILLAR, W. J., and MONKS, J. A. Nov. 17, 1942, No. 16234. [Class 51 (ii)] A bell type furnace for the heat treatment of metals and other materials comprises a hearth E enclosed by a metal sheath F having an extension F<1> dipping into a sealing trough B arranged below the level of the base of the hearth, and a container K enclosing the charge on the hearth and in which a controlled atmosphere is maintained and circulated. The lower end of the container also dips into the seal B and is surrounded by a sleeve L<1> secured to its lower edge and provided with an annular baffle L which contains sealing material for a channel shape member M<1> on the lower edge of the furnace bell M. Air channels B3 are provided below the sealing trough B the inner wall A<1> of which is connected to the plate A on which the hearth E is supported. Inlet and outlet pipes J, J<1> are provided for the furnace atmosphere which is circulated by an impeller H<1> of a fan unit H secured to the plate A in a gas tight manner.
Patent GB-206548-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B19/06
Filed: 1922-06-12
Abstract: 206,548. Whitehead, T. C. June 12, 1922. No Patent granted (Sealing fee not paid). Wheels with reservoirs and receptacles; extension rims.-A hollow cast wheel body A particularly applicable to tractors and the like is formed with openings E for the insertion and removal of loading material for the purpose of varying the traction of the wheel in accordance with the load to be pulled and with two rims C, M, the former of which receives a solid tyre N, the other being cleated for use on soft ground. Pockets H are provided near the periphery in which are secured hooks I for the attachment of tyre-chains and the like. Each opening E is provided with a suitable closure, for instance a pair of oppositely-dished discs F which can be expanded by a clamping bolt G. The hooks I are cast, into the metal of the diso. An annular shoulder K on the wheel body forms a seating for a flange L on the rim M.
Patent GB-992184-A (GB)
Title: Improvements in brackets
Inventor: CHURCH NIGEL JOHN BENTLEY
IPC: A47B57/42
Filed: 1963-04-25
Abstract: 992,184. Shelf brackets. CHURCH & CO. (FITTINGS) Ltd. April 23, 1964 [April 25, 1963], No. 16329/63. Heading A4B. A shelf bracket comprises a support strip 10 having a channel section plate member 11 at its rear end, the limbs 11a of the channel member 11 each having hook-like projections 11b to simultaneously and selectively engage a pair of parallel rows of slots in an upright support and the limbs 11a having the strip 10 located parallel and symmetrically therebetween. A horizontal shelf supporting strip 12 secured to the strip 10 has an upturned shelf retaining edge. A plurality of downwardly directed pairs of hooks 11b may be provided.
Patent GB-456505-A (GB)
Title: Improvements in and relating to cooling units for refigereating machines
IPC: F25B39/02
Filed: 1936-06-11
Abstract: 456,505. Refrigerating. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 11, 1936, No. 16338. Convention date, June 14, 1935. [Class 29] Evaporators.-The evaporator unit of a refrigerating-machine comprises two sets of refrigerant circulating passages 26 into each set of which refrigerant is introduced through inlets 40 and 41, headers 19 for the sets of passages being provided at different levels and communicating by a pipe 39, the gaseous refrigerant formed in the passages being removed through an outlet 20 in the upper header. Each set of refrigerating passages forms an evaporator as described in Specification 450,654. Lugs 36 on the section embodying the lower set of passages are welded between the passages 26 on the upper section to form the two sections into one unit.
Patent GB-107713-A (GB)
Title: Improvements in Land Cultivating Machines applicable also for Hoeing or Thinning Crops.
Inventor: IENARD ERNEST CORBET CATELAIN
IPC: A01B35/06
Filed: 1916-11-15
Abstract: 107,713. Catelain de l'Ienard, E. C., and Richard, G. P. Nov. 15, 1916. Cultivators and hoes; thinning-machines.-A cultivating-machine for fields of beet and similar produce is provided with a number of tools 6 for cultivating the soil longitudinally of the rows of plants, and a second series of tools 26 adapted to move transversely of the rows. The tools 6 are carried by rods 7 which can move axially along tubes 9 carried by a frame 12, 14 pivoted on the machine frame. The rods, which are normally pressed outwards by springs 11, are connected to sleeves 8 which are moved upwards along the tubes 9 against the pressure of the springs 11 by projections 24 on endless chains driven from the wheels 3 of the machine engaging catches 25 on the sleeves. The projections 24 also cause the tools and their supports to turn about the pivots 13 so that, as the tool is drawn rearwardly, it is pressed into the ground. To lift the tools after each stroke, the frame 12, 14 is connected by a link 16 with a lever 17 fitted with an adjustable weight 20. Each transverse tool, Fig. 4, comprised a blade 26 mounted on a flexible shaft 27 having an inclined portion adapted to be engaged by a stop 28 on a rod 29 pressed upwardly by a spring 32<a> and adapted to be forced downwards intermittently by a cam 32 on a shaft 33 driven from the main wheels of the machine. The downward movement of the stop moves the tool transversely between the plants. Cultivators 44 on links 45 loosen the soil pressed down by the wheel 3. For transport, the rear end nf the frame is carried on wheels 36 which are depressed by the operation of a hand-wheel 41.
Patent GB-716527-A (GB)
Title: Improved intake apparatus for vibrating sifter screens
IPC: B07B13/16
Filed: 1952-07-01
Abstract: In the arrangement for supplying ground material to a vibrating sifter screen claimed in Specification 703,185 the pivoted shaft mounting for the flap is made adjustable in height at least on one side.  The shaft may be mounted in an eccentric bush capable of being rotated in relation to the screen casing and by this means the lower edge of the supply flap may be adjusted to be parallel to the surface of the feed table.
Patent GB-145476-A (GB)
Title: Improvements in electric subterranean signalling systems
IPC: H04B13/02
Filed: 1920-06-21
Abstract: 145,476. Forest, L. de. June 16, 1917, [Convention date]. Leakage signalling; aerials.-Overhead lines at two distant stations terminate in earth plates 3, 4 buried at the bottom of deep wells in a stratum of different conductivity from the surface, and signals or speech are transmitted from one station to the other by alternating currents through the earth. The overhead lines may be several miles or several hundred miles long, and are tuned to the frequency of the currents employed, which may be from 500 to 25000 per second. The transmitter may comprise an alternator 9, Fig. 1, the fieldwindings of which are controlled by a key 10, and the receiver may comprise a thermionic valve 12, Fig. 2, and a telephone 13.
Patent GB-959139-A (GB)
Title: An arrangement for counting road vehicles in traffic
IPC: G08G1/015
Filed: 1962-05-02
Abstract: 959,139. Recording apparatus. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 2,1962 [May 2,1961], No. 16807/62. Heading G1J. A device for counting vehicles and classifying them into types or sizes comprises transmitters A, B, C spaced as shown with the distance between transmitters A, B being greater than the approximate axle spacing of two wheeled vehicles but less than the axle spacing of light four wheeled vehicles and the spacing of transmitters B, C is greater than the axle spacing of light four wheeled vehicles but less than that of heavy lorries. Each transmitter A, B, C emits a pulse each time an axle passes it and these are recorded by a recorder R1 which distinguishes by means of a punched hole or scribe as shown in Fig. 3, which transmitter the pulse came from and the order in which the pulses are received. From the order and number of the pulses a vehicle can be classified according to type e.g. AA, BB, CC is a two wheeled vehicle, ABA, BCC a light four wheeled vehicle. The transmitters may be operated by hydraulic detecting means and additional transmitters operated by photocells may be provided to distinguish the profile of the vehicle.
Patent GB-674563-A (GB)
Title: Improvements in or relating to steel wheels with numbering or other indicating devices
Inventor: TENGE JOHANNES
IPC: B41K1/12
Filed: 1950-07-05
Abstract: 674,563. Making number wheels. EERSTE NEDERLANDSCHE FABRIEK VAN SPECIAAL - NUMEROTEURS NUMEROFA N. V. July 5, 1950, No. 16820/50. Classes 83 (ii) and 83 (iv). [Also in Group XIX] Forging.-In a process for the manufacture of a steel wheel, for a numbering or other indicating device, consisting of a number disc having connected thereto a ratchet disc, the ratchet teeth 8 are pressed into a disc formed integrally with the number disc. Surfaces 10 on which the numbers are to be engraved, and grooves 11, are subsequently milled and the disc is then ground to the required thickness.
Patent GB-859062-A (GB)
Title: Improved flotation processes
IPC: B03D1/01
Filed: 1958-05-27
Abstract: As depressant in the froth flotation of ores containing depressable zinc or iron is used in an a -hydroxynitrile selected from the group consisting of acetone cyanohydrin and those represented by the formula:  <FORM:0859062/II/1> where R is hydrogen or a C1-6 hydrocarbon.  Thus, for example, a zinc ore containing lead or copper may be floated and the tailings activated and re-floated to produce a zinc concentrate.  Examples of the a -hydroxynitrile are lactonitrile, glycolnitrile and benzaldehyde cyanohydrin.  Specific ores referred to are silica-pyrite, silica-pyrrhotite, lead-zinc ore and iron-bearing copper ore.  Reagents used in the examples are lime, sodium silicate, soda ash, copper sulphate, zinc hydrosulphite, pine oil, fuel oil, cresylic acid, sodium ethyl xanthate, polypropylene glycol, sodium di (sec butyl) dithiophosphate, thiophosphate acid and its ammonium salt, sodium di (sec butyl) dithiophosphate, sodium mercaptobenzothiazole and diphenylthiourea.
Patent GB-949403-A (GB)
Title: Improvements in or relating to voice-frequency discriminators
IPC: H04Q11/04
Filed: 1961-05-09
Abstract: 949,403. Voice-frequency receivers. FUJI TSUSHINKI SEIZO KABUSHIKI KAISHA. May 9, 1961 [May 9, 1960], No. 16900/61. Drawings to Specification. Heading H4K. In a time division multiplex receiver for V.F. signals modulated or channel pulses, the pulses are fed to two threshold devices, one set at a higher level than the other. Pulses from the lower level threshold device are fed to a circuit which selects the first only of a set (indicative of the commencement of each cycle), the interval between successive ones of such pulses being then measured by a counter or other timing device to determine the frequency of the signal in question. The input to the timing device is, however, disabled unless the signal has previously exceeded the higher threshold, this fact being stored in order to enable the input to the timing device. In one embodiment the timer, which is a counter, counting sampling pulses, is arranged to time five cycles after which the value of the count is emitted to determine the frequency of the signal. A timing device is provided which prevents the same V.F. signal from being re-registered once its count has been taken and the counting circuits cleared. A further timing device provides for clearance, if the duration of the V.F. signal falls short of five cycles. For discrimination against noise, three successive intervals of five cycles may be measured using three separate timers and, in the case of disagreement between the results from the three, making a two-out-of-three majority decision. In an alternative embodiment a count is taken for ten successive cycles, the counts being stored and treated statistically. Thus, in a system in which ten frequencies indicative of the ten digits are used, the counts obtained for all successive cycles are summed and the average value for the digit calculated, say 3.5. Next the counters giving results within  1 of this figure are selected and the counts averaged for these counters to give the final answer. By this means counts which are obviously wrong and due to noise are eliminated. Reference has been directed by the Comptroller to Specification 858,275.