baber/WOPTO huggingface dataset:
Patent GB-1199588-A (GB)
Title: A Process for imparting Improved Elasticity to Woven Textile Fabric
IPC: D03D15/56
Filed: 1967-10-26
Abstract: 1,199,588. Imparting improved elasticity to woven fabrics. NIPPON RAYON CO. Ltd. 26 Oct., 1967 [28 Oct., 1966], No. 48836/67. Headings D1P; D1S. A woven textile fabric composed of thermoplastic yarns at least in its weft direction having improved elasticity is produced by (a) providing a fabric in which the density of the warp yarns before treatment is 60-80% of that of the warp yarns of the finished fabric, (b) scouring and then heat-setting the fabric to shrink it by 20-40% in its weft direction, the fabric being scoured and heat-set under a tension of 20-- 80 Kg/m in its warp direction to bend the weft yarns strongly, and (c) shrinking the fabric by 0.5-5% in its warp direction. The fabric may be composed of filaments or staple fibres of a polyether ester containing 85 mol % of ethylene terephthalate unit and 15 mol % of ethylene oxybenzoate unit, polyethylene terepthalate, nylon 6 or polyacrylonitrile or a blend thereof which may be in admixture with viscose rayon or polynosic fibres. A pad-streamer or open-soaper capable of treating the fabric in its spread state may be used in the scouring operation and a roller-type heat-setting machine capable of stretching the fabric in its warp direction without any restriction in its weft direction may be used for heat-setting. In the final shrinking step the fabric may be treated in a short loop drier. in which there is no tension in the warp direction or the fabric may be shrunk under compulsion using a rubbertype compactor. Dyeing with a dispersed dye optionally in admixture with a vat dye, or resin treatment may be carried out at the same time or after heat-setting. The resin treatment composition may comprise a cellulose reactive resin, a melamine resin, a silicon softener agent, a polyethylene softening agent, zinc nitrate and water.
Patent GB-1115471-A (GB)
Title: Preservatives for the protection of cellulosic materials against attack by moulds and fungi
Inventor: KYTE COLIN TREVOR
IPC: B27K3/40
Filed: 1963-12-11
Abstract: A preservative, for the protection of cellulosic materials (e.g. textiles, wood or rope) against attack by moulds and fungi, comprises an active constituent consisting of or including at least one polyhalogenated phenylester of heptoic or octanoic acid, together with an organic solvent for the active constituent.  The preferred esters are pentochlorophenyl and pentabromophenyl esters of heptoic or octanoic acid, while the organic solvent may be a petroleum distillate such as white spirit or kerosene. Additional ingredients which may be present in the preservative are esters of unsaturated fatty acids (e.g. pentachlorophenyl oleate or pentachlorophenyl esters of coconut oil fatty acids), insecticides (e.g. gamma benzene hexachloride or the chlorinated insecticide known under the Trade Mark "Dieldrin") and emulsifiers.  The preservative may be applied as a solution in the organic solvent or as an aqueous emulsion thereof.
Patent GB-1524999-A (GB)
Title: Valve gear elements
IPC: C22C38/34
Filed: 1975-11-28
Abstract: 1524999 Valve gear elements ZKL ZAVODY NA VALIVA LOZISKA A TRAKTORY NARODNI PODNIK 28 Nov 1975 [5 Dec 1974] 49081/75 Heading C7A Cam shafts, tappets, push rods, shims, rocker arms, valve springs and valves are made at least in part from a bar blank of hypereutectoid steel of composition: The parts may be made by forging above 1200‹C, quenching to form martensit and tempering at 130 to 220‹C.
Patent GB-1240278-A (GB)
Title: The preparation of pigmentary grade colorants
IPC: C09B67/00
Filed: 1968-10-16
Abstract: 1,240,278. Preparation of pigmentary grade colorants. COLUMBIAN CARBON CO. 16 Oct., 1968 [14 Nov., 1967], No. 49168/68. Heading C4P. Pigmentary grade colorants are prepared from crude colorants by subjecting the crude colorants to attritioning and shearing actions sufficient to break down the crystallized structure to non-pigmentary flocculent form, and subsequently salt-grinding the thus-treated crude colorants to reduce the flocculates to pigmentary grade material. Attritioning and shearing actions are preferably imparted by ball milling, in dry form (preferred) or with small amounts of salt or organic liquids. Other methods, such as the use of hammer, pin or stud mills, may also be used for flocculation. Salt grinding is effected in a known manner, either dry or, preferably, in the presence of an organic liquid. If the crude colorant is a copper phthalocyanine pigment use of a liquid such as an aromatic compound e.g. xylene, aniline, benzylamine, an alcohol such as ethanol or isopropanol, or acetone or tetrachloroethylene results in transformation of the alpha to the beta polymorphic form and gives a green shade, beta form phthalooyanine blue pigment. On the other hand, if a liquid such as a glycol or glycol ether is used transformation of the alpha to the beta form is prevented and the product is a red shade, crystallizing type, alpha form phthalocyanine blue pigment. If the crude colorant is a partly chlorinated blue shade phthalocyanine crude and the salt grinding is carried out in the dry or in the presence of an organic liquid, a red shade non crystallizing phthalocyanine blue is obtained. Other crude colorants which may be used are vat pigments, quinacridone pigments and carbazole violet.
Patent GB-978924-A (GB)
Title: Valves for use in the bottom of a sediment-receiving receptacle
IPC: F16K1/00
Filed: 1963-12-12
Abstract: 978,924. Valves. L. E. J. RAWSON. Dec. 12, 1963, No. 49212/63. Heading F2V. [Also in Division A4] A valve controlling the flow of sediment from a fruit-washing machine (see Division A4) comprises a shaft 5, coaxial with a skirt 4 of a sediment tank 3. A sleeve 9, slidable in the skirt, is fixed to the shaft by spiders 10 and abuts a flange 7 to close the conduit. A dished valve member 11 is loosely mounted on the shaft and a spring is provided between the valve 11 and spider. The valve is actuated by a pivoted arm 14 which when actuated first allows the valve 11 to open under the action of the spring and then abuts a washer 16 to move the shaft and open the valve 9. When closing, the valve 9 first closes and water is then able to wash the valve 11 prior to its closing. If sediment jams the valve 9 open, the valve 11 will still close the conduit. Two valves may be provided on separate washing machines actuated by a common member connected to the arms 14.
Patent GB-1064069-A (GB)
Title: High impact strength vinyl chloride polymer compositions
IPC: C10M159/00
Filed: 1963-12-13
Abstract: Impact resistant compositions comprise a vinyl chloride polymer and 0.5-50% based on the weight of the vinyl chloride polymer of a graft polymer consisting of a copolymer of 1-20% of butadiene and 99-80% of an alkyl acrylate, the homopolymer of which has a heat distortion temperature of less than 0 DEG  C., on to which is grafted 10-185%, based on the weight of the copolymer, of methyl methacrylate. Vinyl chlorides specified are homopolymers thereof and copolymers containing up to 20% by weight of comonomers.  The examples describe making graft polymers by polymerizing methyl methacrylate in latices of n-butyl acrylate/butadiene and 2-ethylhexyl acrylate/butadiene copolymers, and blending the resulting graft copolymers with polyvinyl chloride and a copolymer of vinyl chloride with bicyclo-[2,2,1]-hepta-2,5-diene.  The Specification describes also copolymerizing vinyl chloride and bicyclo-[2,2,1]-hepta-2,5-diene in the presence of azodiisobutyronitrile.
Patent GB-1407152-A (GB)
Title: Semiconductor storage devic3
IPC: G06G7/28
Filed: 1972-07-31
Abstract: 1407152 Integrated circuits NIPPON GAKKI SEIZO KK 31 July 1972 [31 July 1971 (2) 1 Sept 1971 22 Nov 1971 (3)] Divided out of 1406691 Heading H1K [Also in Division H3] The storage medium of an integrated semiconductor analogue store consists of a diffused resistive track with a plurality of tapping points, representing analogue values, which are selectively connected to an output terminal via switches operated in response to signals from read-out circuitry. The switches may be bipolar transistors or JUGFETs but as described are IGFETs the drains of which are constituted by side branches from the track and the sources of which are interconnected by a diffused strip. The gates may be connected to the terminals of read-out circuitry via a matrix of diffused tracks and deposited aluminium strips interconnected at selected intersections in accordance with fixed information to be stored. A suitable MOS circuit producing read out pulses at its terminals in a predetermined order in response to a train of clock pulses is described. Alternatively the store can be used as a function generator, e.g. to reproduce complex musical notes, or as a digital to analogue converter by connecting the gates to terminals of read-out circuitry at which pulses are produced in a sequence determined by coded digital input information. The resistive track may be of linear or zig-zag form with the tappings uniformly spaced along it. Alternatively in the zig-zag form the distance between tapings may progressively increase. To store logarithmically related quantities the track may be modified to form a distributed constant ladder-like attenuator network either by provision of branches, opposite those constituting the IGFET drains, the outer ends of which branches are grounded, or by providing along the edge of the track opposite the drains a metallic grounding strip or a series of interconnected grounded contacts. The structure including the matrix when present, is formed by conventional diffusion, oxide patterning and aluminium deposition techniques. Connections at selected intersections in the matrix are produced either by aperturing the oxide only at the selected points and depositing the aluminium strips to overlie the apertures or by providing apertures adjacent but offset from all intersections and providing the strips with side branches extending to selected apertures, the remaining apertures being optionally covered with isolated patches of aluminium for passivation.
Patent GB-1535737-A (GB)
Title: Rotary inertia electric switch
IPC: H01H35/14
Filed: 1975-12-05
Abstract: 1535737 Inertia switches SOC ANON AUTOMOBILES CITROEN 5 Dec 1975 [13 Dec 1974 7 May 1975] 50076/75 Heading H1N A rotary inertia switch intended for detecting imminent locking of a vehicle wheel comprises a flywheel 2 loosely journalled on a drive-shaft 1 with a member 3 coupled by friction to the shaft 1 and capable of driving the flywheel 2 by means of a stop 8a, return means 21 between flywheel 2 and drive member 3 tending to maintain the stop 8a in contact with member 3, and a support member 8 frictionally coupled to the flywheel, there being two pairs of normally open contacts, the first comprising a contact 5 on the member 3 and a contact 7 on the member 8 and the second comprising a contact on the flywheel (as 16 in Fig. 1, or 116 in Figs. 5 or 7, not shown, or 130 in Fig. 9, not shown) co-operating with a contact either on drive member 3 (as 6 in Fig. 1, or 106 in Fig. 5, not shown) or on the member 8 (as 127 or 129 in Figs. 7 and 9, not shown) the first pair of contacts being closed when deceleration of drive member 3 causes the flywheel to advance through an angle B while the second pair are closed, when the flywheel is relatively advanced a greater angle C. The latter closure entails frictional slip of member 8 through the angle C-B in each embodiment. The threshold of operation varies with angular speed due to centrifugal force on weight 23 which may act via a piano wire resilient cam 24b so as also to vary with relative displacement.
Patent GB-1213011-A (GB)
Title: Improvements in and relating to magnetic recording
Inventor: NORRIS KERMIT ARTHUR
IPC: G11B20/14
Filed: 1967-11-06
Abstract: 1,213,011. Data storage. LEACH CORP. 6 Nov., 1967 [7 Nov., 1966; 1 Nov., 1967], No. 50276/67. Heading G4C. Data bit levels, and a square-wave clock signal with one cycle per bit cell, are combined to form a continuous signal having a level transition between adjacent bit cells and, for one bit value, a mid-cell level transition, the continuous signal being low-pass filtered to an analogue signal which is recorded on a magnetic medium. The disclosure is included in divisional Specification 1,213,260, except to say that the phase distortion compensation means (if used) can be inserted in either record or reproduce channel. Reference is made to Specification 1,213,012.
Patent GB-1176869-A (GB)
Title: Improvements in or relating to Multiplexing Arrangements.
Inventor: BRIGHAM ERIC RICHARD
IPC: H04J3/06
Filed: 1967-11-06
Abstract: 1,176,869. Multiplex pulse code signalling. MARCONI CO. Ltd. 29 July, 1968 [6 Nov., 19671, No. 50362/67. Heading H4L. In a system for time-division multiplexing together, a plurality of P.C.M. systems which each include the same synchronizing code combination, means are provided at the transmitter for inverting the sync. code combination in one of the systems prior to combining the systems and means are provided at the receiver which are selectively responsive to the inverted sync. code. Transmitter.-As shown, four P.C.M. systems to be multiplexed are supplied to terminals 4, 5, 6, 7 respectively and converted from bipolar form to binary in units 8 to 11 which supply stores 12 to 15. The outputs of stores 12 to 15 are. controlled by gates 16, 19, 20, 21 respectively which are opened in sequence by a counter 17 controlled by a clock oscillator 18. The store 15 is connected to its gate 21 via an inverter 22. The outputs of the gates are fed via a code converter to the common highway 3.  Receiver.-Signals on the common highway are reconverted to binary form at 23 and supplied to the gates 24 to 27 opened in sequence by a counter 28 controlled via gate 300 by a clock oscillator 29 synchronized with the master clock at the transmitter. The gates 24 to 27 supply stores 30 to 33 respectively, the stores 30 to 32 being connected via binary to bipolar converters 34 to 36 to output terminals 38 to 40 and store 33 being connected via an inverter 43 and converter 42 to the output terminal 44. The stores 30 to 32 also feed sync. code detectors 46 to 48 respectively whose outputs are stored at 49, 50, 51 for the period between successive sync. codes and applied to a NAND gate 52 providing a " 0 " output when synchronization as detected at 46, 47, 48 is correct. Store 33 feeds an inverted sync. code detector 45 whose output is stored at 53 for the same period as that of stores 49 to 51 and inverted at 54 so that a " 0 " is obtained if correct synchronization, is detected at 45. The output of inverter 54 is supplied to a NOR gate 55 which receives also the output of NAND gate 52 and strobe pulses from a source 56 controlled by the oscillator 29. When either detector 45 or the three detectors 46, 47, 48 detect correct synchronization the NOR gate 55 is inhibited, but when these detectors indicate a loss of synchronism, pulses are passed from the source 56 to inhibit the gate 300 to cause the counter 28 to miss a step, this being repeated until synchronization is detected again.
Patent GB-1162677-A (GB)
Title: Process for making Isotropic Polymeric Film
Inventor: SMEDT FELIX FREDERICK DE
IPC: B29C55/12
Filed: 1965-11-26
Abstract: 1,162,677. Polyester films. GEVAERT-AGFA N.V. 24 Nov., 1966 [26 Nov., 1965], No. 50443/65. Heading B5B. In a process of making oriented film from unoriented film composed of an orientable, crystallizable, linear organic polymer, after biaxial stretching of the film while it is moving longitudinally, the stretched film is led, at the same speed at which it leaves the stretching zone or zones through a heat-shrinking zone at a temperature equal to or higher than that of the transverse stretching zone, but at least 10 C. lower than that at which the film is subsequently heat-set, while allowing the central portion of the film to lag behind the edges of the film during movement through such heatshrinking zone, and the film is then led in a reversed condition through a heat-setting zone at uniform speed (so that what was formerly the trailing end of the film enters such heatsetting zone first) while allowing the central portion of the film to lag behind the film edges. Preferably, the edges of the film are gripped and advanced in substantially parallel directions during heat-shrinking, and during heat-setting. The step of heat-shrinking the film may be performed immediately after the biaxial stretching step, so that the film is not allowed to cool between these steps. Suitably, in the heatshrinking step the film is maintained at a temperature of 0 to 40 C. above that at which the film is transversely stretched (the biaxial stretching may be sequential or simultaneous). The heat-set film may finally be heat-relaxed. The preferred material is a polyester containing at least 80% of recurring ethylene terephthalate units. In this way oriented linear polymeric film having a width of at least 70 cms., and having an anisotrophy at any point of the film lower than 1À1 may be obtained. In an exemplary procedure, a polyethylene terephthalate film is extruded by an extruder 10, passed over cooling rollers 11, through longitudinal stretching zone 12, wherein it is maintained at from 70 to 120 C., through a transverse stretching zone 13 at from 70 to 120 C., through heatshrinking zone 14 at from 70 to 220 C., and thence to wind-up station 15. When a sufficient length of film has been wound-up, the film is severed, and film roll 16 is removed from the wind-up station and transported to unwind station 19 where it is continuously unwound and passed through heat-setting zone 17 at from 150 to 230 C., to wind-up station 20. The removed roll 16 is replaced by an empty roller in the wind-up station 15, so that the different operations can proceed continuously. If desired, the film may be heat-relaxed in zone 18 before being wound up at station 20.
Patent GB-1389428-A (GB)
Title: Device for producing hot gases
Inventor: WINDELBANDT HERBERT
IPC: F24H3/04
Filed: 1972-11-03
Abstract: 1389428 Air heating stoves; gas burners INTERPALET GmbH 3 Nov 1972 [5 Nov 1971 27 June 1972] 50716/72 Headings F4K and F4T Apparatus discharging a mixture of hot air and combustion gases (for use, e.g. in the shrinking of plastics wrapping sheets), consists of a guide tube 2 in which is a burner 3 with an ignition device 4, and an axially positioned fan 6 located upstream of the burner. The fan is adapted to provide a spirally flowing annular air stream within the tube 2 and the burner nozzles are arranged so that fuel gas issuing therefrom is ignited by the device 4 and directed outwardly into the spirally flowing air stream. The arrangement provides a spirally flowing annular stream 21 of combustion products encircled by a spirally flowing layer 22 of air which maintains cool the guide tube 2. In use, the apparatus includes also an external air jacket provided by a casing 1, Fig. 1, through which air flows to the fan via forward inlet openings 10 and rear openings 11, in the casing. The apparatus is portable and has a handle 7. Burners.-The burner 3 has radially extending fuel gas passages 12 and is carried in a holder 25, Fig. 6, on which is mounted the ignition device 4 comprising an electrode 14 in a ceramic holder 13. Also carried by the holder 25 are guide plates 27, 31 which act to maintain the spirally moving air stream 29 from the fan 6 as an annular stream producing spirally extending flames at the burner as indicated in Fig. 7. The burner gases discharge from the guide tube 2 as an annular stream 21. The ignition device includes a magnetic gas valve (19, Fig. 5), which is opened only when the ignition device is switched on. A guide ring 23, Fig. 1, may encircle the burner and is said to improve the spiral flow of the combustion gases.
Patent GB-1183597-A (GB)
Title: Method Of and Machine For Grinding Large-area Workpieces
Inventor: HEESEMANN KARL
IPC: B24B21/10
Filed: 1967-11-10
Abstract: 1,183,597. Grinding. K. HEESEMANN. 10 Nov., 1967 [11 Nov., 1966], No. 51302/67. Heading B3D. A method of grinding plate-like large-area workpieces, such as veneered, lacquered or laminated workpieces 52a, comprises first grinding the workpieces transverse to their direction of feed and subsequently parallel to their direction of feed. In apparatus for carrying out the method, workpieces are fed by a conveyer belt 15 past two transverse grinding mechanisms 17, 18 having vertically adjustable pressure beams which are adjustable to the width of the workpieces. Pressure rollers 19 ... 22 are arranged each side of the mechanisms 17, 18 and a contact roller controls the vertical movements of the beams. The belt 15 also feeds the workpieces to a longitudinal grinding mechanism 23 having a belt 34 which grinds the workpiece parallel to its direction of feed and is also reciprocated transversely thereto. The belt is guided over pulleys 32, 35, 36 and a pressure beam 23a which are mounted on a member 30 and plates 28, 29 guided by rollers on a guide 24 at one end carried by an arm 25 from a support 11 and at the other end releasably secured to a pivoted support 26 which is releasable to permit changing of the belt. A reversible motor 42 controlled by limit switches 45, 46 operates through a screw 43 and nut 44 to reciprocate the member 30 and hence the belt while it is driven around the pulleys by a motor 32a. The belt is tensioned by an air cylinder 38 and its tracking is controlled by an air cylinder 40 which moves the drive roller 32 about a universal joint 41. The pressure beam 23a is vertically adjustable by a parallel linkage mechanism controlled by a contact roller in the same plane as pressure rollers 49, 50. The pressure surface of the pressure beam is controlled so as not to grind the edges of the workpiece and consists of a mechanism for adjusting the effective length of the pressure beam and an automatic mechanism dependent on the reciprocating movement of the belt assembly. A guide rail 55 is mounted between vertical guiding devices 54, 56 at the ends of the guide member 24 and the pressure beam 23a is guided for reciprocating movement along the guide rail by rollers. Sliding rails 57, 58 are adjustably secured to the rail 55 and have oblique surfaces 57a, 58a which are adjusted to be adjacent the edges of the workpiece 52a. The rails 57, 58 co-operate with rollers of levers 69 which are thereby rocked and, by means of links 66 vertically displace a portion of a steel plate 65 acting as a pressure member according to the width of the workpiece as the pressure beam assembly is reciprocated with the belt by the motor 42.
Patent GB-1432359-A (GB)
Title: Heat exchange apparatus
IPC: F24H9/00
Filed: 1972-11-08
Abstract: 1432359 Tubular heat exchangers; water heaters PLESSEY CO Ltd 25 Oct 1973 [8 Nov 1972] 51451/72 Headings F4S and F4A In a gas liquid heat exchanger for use in a central heating system, metal wire, or gauze (e.g. of copper or steel) is woven around a liquid conducting array of heat exchange tubes 4 to constitute additional heat transfer surface, the assembly being bonded together by dipsoldering or by spraying with metal. Further wire may be wound around the outside of the assembly. The heat transfer surface may also include baffles formed of balls, rods, or angle sections (72, Fig. 3) of copper, stainless steel or aluminium. The tube array preferably forms, in transverse cross-section, a closed figure shown as circular but which may be square or rectangular. The apparatus shown comprises a water heater heated by a centrally disposed burner 18, the hot gases from which pass over the heat transfer surface between the tubes 4 to a flue 28. The tubes extend between headers which are partitioned so that the water from an inlet 14 flows serially through groups of the tubes to an outlet 16. A natural gas burner is preferred, a flame of ignited gas being retained around the burner by the apertures 22, 21 is a flame trap to prevent blow back and 20 is a gas igniter.