baber/WOPTO huggingface dataset:
Patent GB-276575-A (GB)
Title: Improvements in presses for working sheet metal and the like
IPC: B21D24/08
Filed: 1927-03-08
Abstract: 276,575. Fitzpatrick, H. D., (Marquette Tool & Manufacturing Co.). March 8, 1927. Cupping.-The blank-holder 15, Fig. 1, of a press for drawing sheet material is supported through pins 16 by a pressure-pad 17 carried by rods 25 detachably mounted in the crosshead 26 of the rod 18 of a fluid-pressure cushioning- device, the arrangement being such that whereas the cushioning-device remains permanently embodied in the machine, the blank - holder and pressure - pad may be readily dismantled to allow of the substitution of a blank-punching die 37, Fig. 2, for the drafwing-die 14. A chute 38 may be mounted upon the cushioning-cylinder to carry the punched-out blanks clear of the press. The upper and lower dies are supported by a frame 11 pivoted at 12 to the bed 10. In a modification, the piston-rods of a pair of cushioning cylinders loosely engage in sockets at the end of rods depending from the pressure-pad. In a further modification the drawing die 82, Fig. 8, and its supports may be provided with registering apertures to allow the passage of a wad removed from the cupped article by a punch 88, the wad being guided clear of the press by a chute 90.
Patent GB-1261075-A (GB)
Title: Improvements in or relating to the manufacture of cigars and the like
IPC: A24C1/32
Filed: 1969-02-06
Abstract: 1,261,075. Cigar-making machinery. SERVICE D'EXPLOITATION INDUSTRIELLE DES TABACS ET DES ALLUMETTES. 6 Feb., 1969 [8 Feb., 1968], No. 6488/69. Heading A2C. A cigar or the like formed intially as a cylindrical product 3 with the density at one end at least equal to the density of the remainder is compressed radially at the end to a frusto-conical head, and a smoke passageway is formed through the compressed tobacco by an axially movable, heated needle 9. The initial filling density may be constant throughout the length of the product or it may be greater at the ends. The compression may be effected by shaped jaws 6, 6' which are movable towards each other and heated under thermostatic control, and the other end of the cigar may be shaped by similar but unheated jaws 7, 7'. Instead of the relatively movable jaws 6, 6', a frusto-conical recessed, heated block fitted with a needle may be employed, the compression and piercing being effected by relative axial movement between the cigar and block.
Patent GB-737416-A (GB)
Title: Improvements in methods of and apparatus for measuring changes in the position of the interface of two liquids
Inventor: GOLDSMITH KURT
IPC: G05D9/12
Filed: 1953-03-10
Abstract: 737,416. Electric tests. UNILEVER, Ltd. Feb. 24, 1954 [March 10, 1953], No. 6535/53. Class 37. Variations in the position of the interface between two immiscible liquids is determined by measuring the resistance between two electrodes, one in each of the liquids, preferably in an A.C. bridge whose unbalance current may be used to control the rate at which the lower liquid is removed from a chamber into which they are fed for separation, to maintain the interface at a given position. Further electrodes may be located in one or both of the separate liquids to introduce into the bridge circuit resistances which compensate for variations in the resistivity of the separate liquids. As shown (Fig. 6) for use in a soap-settling plant, the liquid crude soap 54 and lye 55 are fed through a mixer 56 to a settling pan 57 containing the electrodes A, B on either side of the interface 1, which it is required to maintain in a constant position. The resistance between electrodes A, B is measured in a bridge circuit 6 (Fig. 4) fed from an oscillator 2, 3, the bridge being balanced at the correct position of the interface 1. Subsequent unbalance current is amplified at 11, 12, 16 and rectified at 20, 21 to give a D.C. voltage across resistors 24, 25 whose magnitude and direction is indicative of the magnitude and direction of the unbalance. This D.C. voltage is fed to the grids of valves 26, 27 having a meter and/or a neutral relay 28 connected between their anodes so that a difference in anode currents causes relay 28 to operate, to drive a motor 40 (Fig. 6) in one direction or the other, to vary the gear ratio between a motor 46 and a pump 45 which removes the lower liquid from the settling pan 57. To avoid hunting, the energizing circuit of motor 40 contains switch contacts which are closed for only 2-10 seconds per minute by a rotating cam driven by a synchronous motor.
Patent GB-747798-A (GB)
Title: Copolymers of acrylonitrile and glycerol -a-alkenyl ethers
IPC: C08F220/44
Filed: 1954-03-08
Abstract: Copolymers containing from 80 to 99 per cent of acrylonitrile and from 1 to 20 per cent of glycerol alpha-allyl ether, glycerol alpha-methallyl ether, or glycerol alpha-(b -chloroallyl)ether with or without up to 19 per cent of another monomer or monomers are made by polymerizing a mixture of the monomers in aqueous emulsion in the presence of a polymerization catalyst and optionally a chain-terminator.  Other monomers mentioned are vinyl acetate, vinyl chloride, styrene, methacrylonitrile, vinyl pyridine, methyl methacrylate and diethyl maleate.  Suitable emulsifiers are sodium oleate, potassium oleate, salts of triethanolamine, dodecylmethylamine, and rosin acids, and alkylaryl sulphonates. Specified chain-terminators are alkyl and aryl mercaptans, carbon tetrachloride, chloroform, dithioglycidol, and alcohols.  Catalysts mentioned are sodium and hydrogen peroxides, potassium persulphate, sodium percarbonate, and sodium perborate.  The copolymer may be made into fibres by dissolving in N,N-dimethylacetamide, N,N-dimethyl formamide, gamma - butyrolactone or ethylene carbonate and extruding the solution utilizing wet or dry spinning techniques.  In an example fibres are dyed scarlet using acid dyes.
Patent GB-307029-A (GB)
Title: Improvements in or relating to apparatus for labelling bottles
IPC: B65C9/08
Filed: 1929-03-01
Abstract: 307,029. Weiss, J. March 1, 1928, [Convention date]. Labelling.-A machine for labeling bottles comprises a rotatable ring 2 on to which the bottles are fed from a transporter band 7, and duplicate fork-shaped pasting stamps 20, 21 which are moved alternately into a label-applying position 11 for successive bottles to pass through them and pull off a label 31 bridging the stamp, the labelled bottle then passing between wipers 19 and on to a discharge band 13. The stamps 20, 21 are associated, respectively, with pasting devices 15, 16, and piles of labels 17, 18, and are coupled together to move from the labelling position first past rollers 25, 26 of the pasting devices, then in front of the label stacks to pick up a label, then back to labelling position, the pasting devices and label stacks being withdrawn during this return movement.
Patent GB-643293-A (GB)
Title: Improvements in or relating to pivotal joints and method of making the same
IPC: F16C11/04
Filed: 1948-03-03
Abstract: 643,293. Hinges. TRICO PRODUCTS CORPORATION. March 3, 1948. No. 6708. Convention date. March 5, 1947. [Class 65(ii)] [Also in Group XXII] A pivota'l'-.jo'int is made by forming a concave bearing portion on a shaft 10, then die casting a sleeve 11 about the bearing portion, and thereafter breaking the adhesion between the sleeve and shaft by an axial blow on the latter. The shaft is riveted to a link 8 and the sleeve is connected detachably and non-rotatably to a link 27, a rubber bush 28 being interposed between the latter and the sleeve. A pin 15 on the sleeve engages an aperture in the link 27, while the narrow end of a keyhole slot in a retaining plate 30 is urged by means of a spring against an inclined surface of the head 18 of the shaft. A lubricant-impregnated washer 21 is provided.
Patent GB-589126-A (GB)
Title: Improvements in or relating to means for generating rectangular electrical impulses
IPC: H03K12/00
Filed: 1941-05-27
Abstract: 589,126. Pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and LEVY, M. M. May 27, 1941, No. 6781. [Class 40 (v)] In a system for generating pulses of short duration and high power from a source of alternating potential, the frequency of the plate supply in any stage of a cascade amplifier is arranged to be an integral submultiple of the frequency of the source. Fig. 1 shows an amplifier of the type described in Specification 582,752 to which the invention may be applied. The source feeds the pentodes PI, P2 through transformer T with voltages displaced slightly from phase opposition by condenser C and limited by resistances RO and diodes D. The combined output is fed to cathode follower V. By using alternating potentials at integral submultiplesof the source to energize the anodes of the valves P1, P2 and V, steeper pulses are obtained. Fig. 6 shows an arrangement for securing increased sharpness in the pulses by the provision of additional stages P3, P4 and P5, P6. In this arrangement transformer T may be fed with frequency 32f and the supply to valves P1, P2, P5, P6 be 16f and to valves P3, P4 be 4f and to valve V be f, where f is the desired frequency of repetition of the impulses.
Patent GB-127651-A (GB)
Title: Improvements in the Employment of Thermionic Devices for Magnification Purposes.
IPC: H03F1/50
Filed: 1917-05-12
Abstract: 127,651. Marconi's 'Wireless Telegraph Co., and Wright, G. M. May 12, 1917. Non-contact-making relays. Small currents or potential differences such as are set up in wireless receiving circuits are amplified by an arrangement of two or more vacuum-tube relays, of which the first has its plate connected to its grid through a high - resistance and a battery, the plate of the first relay also being connected to the grid of the second, the filament of the latter being connected to an intermediate point in the battery. The incoming current or potential difference is supplied to the grid g and filament f of the first relay, a potentiometer p determining the normal potential of the grid. The plate a is connected through a resistance r to the positive pole of a battery H, the negative pole of which is connected to the filament f. The plate a is connected also to the grid of the second relay, the filament of which is connected to a point m on the battery H, the potential at the point m being the same as, or differing by a small amount from, the normal potential of the plate a. Similar connexions are made between the second and subsequent relays, and the output circuit L<2>, C<2> is connected across the filament and plate of the last relay. The relays have a limiting action which serves to reduce disturbance from atmospherics. If an impulse is received which tends to give the plate a a considerable positive potential, current begins to flow from grid to filament of the second valve and the potential of the plate a is reduced. Similarly impulses of the opposite sign are damped at the third relay. These relays may be used for amplifying signals in ordinary cable telegraphy.
Patent GB-1016598-A (GB)
Title: Liquid pump system
IPC: F04D15/00
Filed: 1964-02-19
Abstract: 1,016,598. Pumps. I. GIACOMINI. Feb. 19, 1964, No. 6870/64. Heading F1A. A pump 3 driven by a motor 12 has an inlet valve 10, a by-pass valve 9, an outlet valve 8 and a pressure sensitive switch 6 which on fall of pressure causes the motor 12 to run for a predetermined period.
Patent GB-1356211-A (GB)
Title: Ion production
IPC: H01T23/00
Filed: 1972-02-15
Abstract: 1356211 Converting SCIENTIFIC ENTERPRISES Inc 15 Feb 1972 [14 April 1971] 6879/72 Heading H2F [Also in Division H1] In ionizing apparatus (see Division H1) a converter comprises a bridge of two diodes 18, 19 and two Zener diodes 16, 17 connected to 105-240 V mains 11 via a voltage dropping capacitor 23. The rectified supply feeds a blocking oscillator 28, 34, the asymmetrical waveform of which is rectified by positive and negative voltage doublers having output terminals 51, 56.
Patent GB-555105-A (GB)
Title: Electromagnetic devices
IPC: H01H50/16
Filed: 1942-05-22
Abstract: 555,105. Electromagnets. STANDARD TELEPHONES & CABLES, Ltd. May 22, 1942, No. 7006. Convention date. May 29, 1941. [Class 35] [Also, in Group XXXVII] An electromagnetic relay or other device has a member of permanent magnetic material such as vicalloy in its magnetic circuit so that when the operating winding of the relay is de-energized the armature remains attracted. It may later be released or restored by a demagnetizing current or by forcible separation or by opening an auxiliary gap in the magnetic current. The member may take the form of a disc 8 and be arranged between the main part 6 of the core and a pole 7 or it may be a rod 10 lying within a shell 12 of molybdenum permalloy and having a pole face 13 of " Permendur " (Registered Trade Mark).
Patent GB-897208-A (GB)
Title: Improvements in or relating to textile-treating compositions
IPC: D06M13/224
Filed: 1960-02-29
Abstract: 897,208. Proofing textiles against mildew. CHEMISCHE WERKE WITTEN, G.m.b.H. Feb. 29, 1960 [March 21, 1959], No. 7083/60. Class 140. Compositions for proofing textiles against mildew and rot comprise at least 70% by weight of pentachlorophenol fatty acid esters and up to 30% by weight of pentachlorophenol. The esters are preferably of C 6 -C 12  saturated or unsaturated fatty acids or mixtures thereof. The compositions may be applied as emulsions.
Patent GB-1500736-A (GB)
Title: Method of forming a sintered ferrous alloy
IPC: B22F3/26
Filed: 1975-02-20
Abstract: 1500736 Infiltrated sintered ferrous bodies NIPPON PISTON RING CO Ltd 20 Feb 1975 [21 Feb 1974] 7140/75 HeadingC7D Sintered ferrous alloys suitable for use as valve seats are made by mixing Fe powder with Mo and/ or W, C and optionally at least one of Ni, Mn, Cr and Cu, pressing and sintering the mixture to form a sintered product with a pearlitic structure which is then machined, infiltrated with Cu or a Cu base alloy and cooled to form a structure which is at least 10% martensitic and/or bainite. The powder mixture preferably contains 0À5-5 wt per cent Mo and/or W. Pressing and sintering are conventional e.g. at 4-6 t/sq cm and 1100-1200‹C and 50-85% of the interstitial volume of the sintered alloy is infiltrated with Cu or a Cu base alloy.
Patent GB-325711-A (GB)
Title: A new or improved gulley for the drainage of roads
IPC: E03F5/046
Filed: 1929-03-06
Abstract: 325,711. Horsman, W. E. March 6, 1929. Road-surface boxes.- A gulley box adapted to be built into the line of the kerbing has a front opening 2, a grid 4 supported on projections 5 and a removable lid 6 provided with projections 7 engaging recesses 8 and with a lock 11. A slot 15 in the lid is so arranged that a key having a projection thereon can only be removed when the lid is locked, and that the key may be used to remove the lid. The opening 2 has a flange 3 against which a bar 18 may be placed, when it is desired to close the opening wholly or in part.
Patent GB-979832-A (GB)
Title: Improvements in or relating to yarn clearing devices
Inventor: MCCONNELL KENNEDY JAMES
IPC: B65H63/06
Filed: 1962-02-24
Abstract: 979, 832. Yarn clearers; stop motions. JUTE INDUSTRIES Ltd. May 8, 1963 [Feb. 24, 1962], No. 7291/62. Headings DID and D1J. A yarn clearing device which is adapted to effect stoppage of the yarn feed upon detection of a fault but not upon detection of a properly completed knot comprises first and second sensing means spaced sufficiently to ensure that a properly completed knot does not cause simultaneous activation of the first and second sensing means but that faults of a certain minimum length cause the two sensing means to be activated simultaneously thereby effecting stoppage of the yarn feed. Yarn 36 is fed past first sensing means comprising a fixed roller 10 and a displaceable roller 11 mounted respectively on support members 12, 14 which lie adjacent the yarn path. The support member 12 is adjustable, a micrometer screw 49 being provided to set the gap between the rollers 10, 11 and the roller 11 is connected to operate a microswitch 20 when displaced by a thickened portion of the yarn. Second sensing means comprising rollers 15, 16 are similarly arranged to operate a microswitch 21. Microswitches 20, 21 are normally open but if closed simultaneously e.g. by a fault of a given minimum length complete a circuit through a relay or relays (Fig. 2 not shown) to energize an electromechanical device 33 operating a yarn cutter 32, the resulting loss of tension in the yarn being used to arrest the yarn feed by a stop motion device not shown. In addition a warning lamp is illuminated. Relay means are included in the electrical circuit to ensure operation of the cutter 32 even if the period of overlap of the sensing means is slight. A bimetallic element is also included to effect deenergization of the device 33 and thus to return the cutter to its normal position after a given period. The electrical circuit additionally includes relays which operate in the event of power supply failure in the circuit of the sensing means to trip out the main driving motor. This prevents continued operation of the yarn feed if the sensing means are inoperative. Slotted guide plates 46 and guide eyelets 45 (Fig. 3 not shown) are provided to guide the yarn into and to maintain it in proper alignment with the sensing rollers. To minimise abrasive wear the eyelets 45 and rollers 10, 11, 15, 16 may be of ceramic material. In an alternative arrangement, the sensing means are used to operate a stop motion directly without the intermediate step of cutting the yarn.
Patent GB-849117-A (GB)
Title: Improvements in or relating to polymeric cellular products
IPC: C08J9/228
Filed: 1957-03-05
Abstract: Polystyrene foam having a density of less than one per cubic foot is prepared by contacting polystyrene particles containing 4-15% by weight of an aliphatic hydrocarbon boiling within the range of 25 DEG -100 DEG C. with steam at a pressure of 5-30 p.s.i.g. and a temperature of 109 DEG  to 134 DEG C. for 5-30 seconds, volatilising a portion of the hydrocarbon and expanding the particles into discreet particles having a density of less than one pound per cubic foot, and heating the discreet particles to volatilise the remaining hydrocarbon, e.g. in a mould, to form an integral foam. Specified hydrocarbons are petroleum ethers, pentane, hexane, heptane, octane, dimethylpentane, iso-octane, cyclopentane and cyclopentadiene.  In the impregnation of the particles with the hydrocarbon, dispersing agents, such as difficulty-soluble phosphates, polyvinyl alcohol and calcium carbonate, may be used. Specifications 690,214, 715,100, 756,654 and 815,386 are referred to.ALSO:Polystyrene foam having a density of less than one pound per cubic foot is prepared by contacting polystyrene particles containing 4-15% by weight of an aliphatic hydrocarbon boiling within the range of 25 DEG -100 DEG C. with steam at a pressure of 5-30 p.s.i.g. and a temperature of 109 DEG  to 134 DEG C. for 5-30 seconds, volatilising a portion of the hydrocarbon and expanding the particles into discreet particles having a density of less than one pound per cubic foot, and heating the discreet particles to volatilise the remaining hydrocarbon, e.g. in a mould, to form an integral foam.  Specified hydrocarbons are petroleum ethers, pentane, hexane, heptane, octane, dimethylpentane, isooctane, cyclopentane and cyclopentadiene.  In the impregnation of the particles with the hydrocarbon, dispersing agents, such as difficulty-soluble phosphates, polyvinyl alcohol and calcium carbonate may be used.  Specifications 690,214, 715,100, 756,654 and 815,386 are referred to.
Patent GB-744771-A (GB)
Title: Improvements in and relating to h.f. power measuring apparatus
Inventor: HUDDART DONALD HARRY ALDERLEY
IPC: G01R21/04
Filed: 1953-03-17
Abstract: 744,771. H.F. power measurement. BRITISH THOMSON-HOUSTON CO., Ltd. March 17, 1954, [March 17, 1953], No. 7341/53. Class 37. H.F. power in a wave-guide is measured by an instrument responsive to the voltage generated by a thermocouple proportionately to its temperature, inserted in the guide to be heated by the induced current due to the electromagnetic field therein; such thermocouple being inserted so that it extends from one wall of the guide to the opposite wall at right-angles to the direction of propagation. In Fig. 1, two linear thermocouples 1, 2 (which may be of copper-constantan and coated with a layer of high resistivity material, e.g. graphite, to increase sensitivity) are positioned within a wave-guide 3 parallelly to the E-plane and perpendicularly to the direction of energy propagation, mutually offset with respect to the centre line and spaced apart by a distance #g/4 to eliminate reflections (Fig. 2, not shown). The extremities of the couples pass on each side of the guide through coaxial line filters 5 each of which comprise (Fig. 3) a choke member 6 with a central cavity 7 and apertures 8 accommodating the thermocouple 1, which may be filled with electrical and thermal insulation 9, and the couples are connected additively in series with a microammeter 4 indicating the power in the guide as a function of the thermocouple heating produced thereby. Fig. 4 shows a modification in which a single thermocouple is inserted centrally of the waveguide, is soldered at one end to a cylindrical metal block 3 carried by an internal face of the guide, and passes at the other end through an insulated aperture in a similar block 4 carried by the opposite inner face and through a coaxial line filter 5 to a microammeter 6 whose remaining terminal is connected to the wave-guide body. The internal metal blocks introduce a capacitative reactance equal in magnitude. to the inductive reactance of the thermocouple for matching purposes.
Patent GB-1397875-A (GB)
Title: Process for producing cured phenolic filaments
IPC: D06M101/16
Filed: 1973-02-14
Abstract: 1397875 Cured phenolic filaments NIPPON KYNOL Inc 14 Feb 1973 [23 Feb 1972] 7343/73 Heading B5B The drawability of cured phenolic filaments is improved by contacting them with a liquid or vapour containing at least 25% by weight, preferably at least 35% by weight of an alcohol of from 1 to 6 carbon atoms, acetone or a mixture thereof, suitably at 30‹ to 70‹ C. A fibre forming thermoplastic synthetic resin may be present in the cured phenolic filaments in an amount of less than 50% by weight based on the total weight of the filaments; specified resins include polyamides, polyurethanes, polyesters, polyolefins, polystyrene, polyvinyl chloride and polyvinylidene chloride. The filaments may be contacted with the liquid or vapour before they are drawn or while they are being drawn. Specified alcohols include methyl, ethyl, n- and iso-propyl, n-butyl, isobutyl, secbutyl and tert-butyl alcohols, amyl and isoamyl alcohols, and hexyl alcohol. The treating reagent swells and relaxes the filaments, and it is thought that aldehyde monomers and low polymers present in the filaments are thereby removed, so enhancing tenacity and elongation and reducing the variance of the elongation. Examples illustrate (i) the treatment of a cured melt spun novolak resin filament with aqueous methanol of various concentrations, (ii) treatment of the same filaments with methanol, ethanol, propanol, butanol, n-amyl alcohol and acetone, (iii) treatment of a cured melt-spun filament comprising 90% novolak resin and 10% nylon-6 with 55% aqueous methanol followed by acetylation, (iv) treatment of cured melt spun novolak resin filaments with 55% aqueous methanol followed by cold drawing and then hot drawing in aqueous methanol solution at 55‹ C.