baber/WOPTO huggingface dataset:
Patent GB-1094986-A (GB)
Title: Blooming of continuous filament tow
IPC: D01D10/04
Filed: 1964-11-19
Abstract: 1,094,986. Tobacco smoke filters. EASTMAN KODAK CO. Nov. 19, 1964 [Nov. 22, 1963], No. 47106/64. Heading A2C. [Also in Division D1] In a process for "blooming" or opening a continuous filamentary tow preparatory to . its manufacture into filter tips for cigarettes and, optionally, incorporating an additive e.g. activated carbon, starch, silica gel, titanium dioxide, phthalocyanine blue, . magnesium carbonate, calcium carbonate, polyalkylene glycols and glycol esters, carboxylic acid esters, colouring and flavouring agents, the tow is treated in a dual-throat compressed gas e.g. air, jet, shown in Fig. 1. The tow is introduced through a conduit 32 into a first aspirator 12 wherein it enters a chamber 17 and encounters compressed air entering through opening 14. The tow then passes through, and partly blooms in, a conduit 24, into a chamber 27 of an aspirator 20 and is subjected to compressed air flowing from inlet opening 22. The further blooming action of the air continues as the tow passes into a conduit 28 and the final blooming occurs as the tow is withdrawn into a blooming device 36 wherein the gas is allowed to expand without restraint and the opening tow is restrained by flexible fingers 38. An auxiliary jet, Fig. 4 (not shown) may be inserted into the inlet 14 and/or 22 and the additive, in the form of dry, flowable material or a dispersion of a solid in a carrier liquid, introduced thereby. In the conversion of tow to a unitary filter rod element, Fig. 5, tow 52 from a bale 54 passes through a jet 56, which laterally spreads or bands the tow, over a roller guide 58, through feed rollers 60, 62, across a device 64 for applying a plasticizer for the filaments, through a dual-throat jet 68, into which additive from a feeder 70 is aspirated through a line 72, around rollers 76, 78, in a vented enclosure 80, through a jet 84 and into a rod maker 82. The feeder 70 may be replaced by a pump supplying a viscous slurry consisting of rice starch suspended in a fluid composed of glycerol triacetate, propylene glycol, water and a dispersing agent.
Patent GB-1282735-A (GB)
Title: Automatic reversing mechanism for the longitudinal movement of the ink ribbon in power-driven typing and printing units
Inventor: TRAENKNER ERIKA
IPC: B41J33/512
Filed: 1969-09-25
Abstract: 1282735 Ink-ribbon mechanism KOMBINAT ZENTRONIK VEB 25 Sept 1969 47217/69 Heading B6F An ink-ribbon mechanism mounted on a moving carriage, is automatically reversed when sensor levers 11, 12, bearing by means of rollers 15, 16 on the outside diameter of the wound ribbon, pull a snap-over tumbler mechanism 19 so that a frame or base-plate 27 carrying gears 31, 32 pivots to alternately engage them with either spool gears 8, 9. The gears 31, 32 continuously engage drive gear 30.
Patent GB-1480939-A (GB)
Title: Apparatus for separating aspherical particles of electrophotographic toner carrier material from spherical particles of such material
IPC: B07B13/00
Filed: 1974-11-01
Abstract: 1480939 Separating spherical particles from a mixture with aspherical particles HOECHST AG 1 Nov 1974 [5 Nov 1973] 47380/74 Heading B2H Apparatus for separating spherical particles from aspherical particles comprises a plurality of flat plates 30 inclined to the horizontal and arranged above one another in spaced parallel relationship, and means 32 and 34 for feeding a mixture of particles onto an upper region of each plate with a velocity having a component at an angle e.g. 90‹, to the line of steepest gradient of each plate. The particles move in curved, downward paths on the plates and are collected in containers 33, the path taken by each particle depending on its sphericity. The apparatus may be used to treat particles of electrophotographic toner carrier material.
Patent GB-1487306-A (GB)
Title: Retarders for rotary shafts
IPC: F16D57/04
Filed: 1973-10-11
Abstract: 1487306 Retarding by gaseous turbulence GIRLING Ltd 8 Oct 1974 [11 Oct 1973] 47609/73 Heading F2E A vehicle retarder comprises a turbulencecreating unit 1 having a stator 2 and a rotor 3 having axially closely spaced opposed faces with co-operating, radially aligned pockets 5, a compressor 6 separate from the unit for compressing ambient air to increase its density, the compressor being connected to the unit 1 to pass compressed air thereto at 7 and release means (as shown, a relief valve 9) which is operable to connect the turbulence-creating unit 1 with the atmosphere to permit the passage of air from the unit to atmosphere. As shown, a silencer 10 is interposed. In operation, turbulence is created in the pockets 5. The loading on valve 9 is controlled by the vehicle operator via bell crank and spring 11. When the loading is small, the air pressure in stator 2 is low and the braking effect is consequently small. When the loading is increased, the braking effect in housing 2 is greater, and in addition the compressor 6 extracts increased power from axle 4. The braking effect may also be varied by altering the drive ratio between axle 4 and rotor 3, or by altering the geometry of device 1. An iris plate (not illustrated) may be secured to axle 4 to operate in each of the radial gaps between stator 2 and a rotor 3, the plate expanding radially outwardly into pockets 5 centrifugally, to reduce the flow area, and hence the energy transfer, at high speeds. When the retarder is not required, an arrangement of change-over valves (not shown), which may be incorporated at the inlet and outlet of compressor 6, may serve to reverse the compressor action to exhaust air from unit 1, as an alternative to clutch disconnection.
Patent GB-1329858-A (GB)
Title: Sewing thread and a method of preparing the same
IPC: D02G3/46
Filed: 1970-10-07
Abstract: 1329858 Modified polypivalolactone filaments KANEBO Ltd 7 Oct 1970 [8 Oct 1969 13 Nov 1969 8 Dec 1969(2) 4 April 1970 25 June 1970] 47646/70 Heading B5B [Also in Divisions C7 and D1] A sewing thread comprising at least one thermoplastic elastic fibre component and having a titre of no less than 70 denier, an initial modulus of elasticity in tension of no less than 0À5 g/den., an elongation at break of no less than 30% and an elastic recovery at 25% elongation of no less than 70% may be prepared from pivalolactone polymer fibres modified either by subjecting a hot drawn polypivalolactone yarn to a first heating at a temperature above 150‹ C. under a tension of at least 0À2 g/den. for at least 0À1 second and second heating at a temperature above 110‹ C. and below the temperature of said first heating under relaxed conditions for no less than 1 second or by treating a multifilament polypivalolactone yarn with an oiling agent containing a phenolic antioxidant and a swelling agent comprising a non-ionic surface active agent and/or a neutral oil and subjecting the resultant multi-filament yarn to continuous heating at a temperature between 35‹ C. below the melting point of the polypivalolactone and said melting point to obtain an agglutinated multifilament yarn. Preferably the sewing thread has a breaking tenacity of no less than 1À5 g/den., an elongation at break greater than 50%, an initial modulus of no less than 5 g/den., a yield strength of no less than 0À6 g/den., a shrinkage in boiling water of no more than 1% and comprises from 3% to 97% by weight of the thermoplastic elastic fibre component and from 97% to 3% by weight of at least one non-elastic fibre component. In examples twisted (S and/or Z directions) polypivalolactone yarns are used alone or doubled and twisted with cotton yarn, polyester yarn, acrylic spun yarn or silk yarn as sewing threads for lock and/or chain stitching of e.g. underwear, athletic vests, sweaters etc. Elastic yarns prepared from copolyamides of sebacic acid with substituted and unsubstituted hexamethylene diamine and yarns prepared from a block copolymer of polypivalolactone and 5 mole per cent polyethylene oxide are also used.
Patent GB-1149157-A (GB)
Title: Process for the preparation of dichloroacetyl-2,4,5-trichlorobenzene
Inventor: FALBE JURGEN GRIEDRICH
IPC: C07C49/807
Filed: 1967-10-19
Abstract: 1,149,157. Dichloroacetyl - 2,4,5- trichloro - benzene. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 19 Oct., 1967 [21 Oct., 1966], No. 47715/67. Heading C2C. A mixture comprising dichloroacetyl-2,4,5- trichlorobenzene is obtained by chlorinating a mixture of 2,4,5- and 2,3,6-trichloroacetophenone with chlorine in the presence of hydrogen chloride in a solvent containing carboxylic acid with less than 5 carbon atoms and continuing the reaction whilst the content of monochloroacetyl-trichlorobenzene of the reaction mixture first increases and subsequently decreases and then stopping the chlorination when the monochloroacetyl-trichlorobenzene content of the reaction mixture is approximately equal to the 2,3,6-trichloroacetophenone content of the starting material. Specified solvents are those containing carboxylic acids having less than 5 carbon atoms. Examples are given for the production of the mixture and isolation of the compound from the mixture.
Patent GB-477361-A (GB)
Abstract: 477,361. Apparatus for smoothing and combing furs. WILHELM, S. June 26, 1936, No. 17836. Convention date, Oct. 8, 1935. [Class 76] Apparatus for smoothing and combing furs comprises a rotatable working cylinder 1 having alternately arranged smoothing members 2 and combing members 3 stationary relative to the cylinder, the cylinder being adapted to be reciprocated in the direction of its axis during its rotation.
Patent GB-1267517-A (GB)
Title: Producing filaments from films
Inventor: WATERHOUSE GEORGE
IPC: B29C48/08
Filed: 1968-10-10
Abstract: 1,267,517. Fibrillating films; void-containing films. ERNEST SCRAGG & SONS Ltd. 6 Oct., 1969 [10 Oct., 1968], No. 47979/69. Heading B5B. Filaments are produced by fibrillating, e.g. by stretching, a thermoplastics film which has longitudinal internal and external surface discontinuities. The film, which may have semicircular surface grooves and contain longitudinal circular channels is made, e.g. by injecting air internally during extrusion followed by passage through ribbed rollers. Beaded edges may be provided to assist in accurate positioning of the internal voids with respect to the ribs on the rollers. Tri- or four-lobed filaments may be formed, separately or mixed, depending on the relative positions of the ribs and channels. The film may be a multilayer formed by extrusion, the composite filaments so produced being self-crimping.
Patent GB-1274504-A (GB)
Title: Improvements in or relating to the synthesis of ammonia
Inventor: HARMENS ALEXANDER
IPC: C01C1/04
Filed: 1969-09-30
Abstract: 1,274,504. Ammonia synthesis. PETROCARBON DEVELOPMENTS Ltd. 18 Sept., 1970 [30 Sept., 1969], No. 48080/69. Heading C1A. In the synthesis of NH 3  from- N 2  and H 2  derived from He-containing- natural gas; the impurity content of the gas feed to which unreacted gases are recycled is maintained constant by (a) withdrawing a purge gas stream from the gases being recycled (b)-treating the purge stream by low temperature partial condensation to remove AR and CH 4  before or after which a bleed stream is removed from the purge stream, and (c) returning the remainder of the purge stream to the reactants; the effluent stream from the condensation process and the bleed stream each being removed at a rate such that the AR, CH 4  and He content of the gas feed remains constant. When the bleed stream is removed after the condensation process it may be treated to recover the helium.
Patent GB-481077-A (GB)
Abstract: 481,077. Variable-speed ratchet gearing. HORST, E. C. VON P. VAN DER. July 14, 1937, No. 19554. Convention date, July 18, 1936. [Class 80 (ii)] Variable-speed gearing comprises a driving- shaft a with cams b thereon in multiple phase engaging each a roller c on a bell-crank lever e, n oscillated thereby. The main arm e of the bell-crank is biassed against the cam b by a spring m pulling on the shorter arm n and the bell-crank is pivoted upon an arm k<1> of a driving ratchet k with the arm e substantially at right-angles to the arm k<1>. Each arm c carries another roller g engaging a raceway h which is adjustable in inclination so that longitudinal displacements of adjustable amplitude are imparted to the arm e and transmitted as a continuous-drive to a shaft l adjusted in speed according to the inclination of the raceway. The raceway h may be replaced by the arc struck by a link of adjustable centre.
Patent GB-1209927-A (GB)
Title: Control circuit for electronically-switched motors
IPC: H02P6/14
Filed: 1967-10-26
Abstract: 1209927 Electric motors GOLAY BUCHEL & CIE SA 26 Oct 1967 [26 Oct 1966] 48119/67 Headings H2J J13 J14A J14X J14C J14D J12N1 J12N3Y J12N3A J12N3B J12H2 and J12C The supply to a transistor or thyristor controlled motor 38 is supplied from a circuit, Fig. 2, which varies the voltage derived from the D.C. power line 40. When an initiating voltage is applied to the base of transistor 23, the following transistors 27 ... 30 become conductive and establish a current through coil 31 and resistor 33, thereby furnishing at terminals 21, 22 the supply for a switched winding motor, Figs. 1 and 3 (not shown). A high frequency signal, applied to the base of transistor 34, causes current to flow in the primary of transformer 35, 25 the induced voltage being sufficient to switch off transistor 27 and thereby 30, the supply at terminals 21, 22 consequently falling. When the current in primary 35 decays sufficiently the fall in voltage across secondary 25 results in the transistors switching on again and the cycle repeats.
Patent GB-1199185-A (GB)
Title: Reciprocating Pump Assembly
IPC: F04B1/14
Filed: 1967-10-24
Abstract: 1,199,185. Swash-plate mechanisms. WILLIAM HAGAN CO. 24 Oct., 1967 [24 Oct., 1966], No. 48167/67. Heading F2K. [Also in Division F1] A variable-stroke drive for reciprocating a pump piston 11, Fig. 1, comprises a sleeve 3 rotated by a motor-driven worm-wheel 1 meshing with a gear 2, and a wheel member 5 pivoted by pins 6 on sleeve 3 and engaged on its periphery by bearing members 8, 9 rotatably mounted on a reciprocable shaft 10 connected to piston 11, rotation of shaft 10 being prevented by a bearing member 18 engaging a fixed guide 18a. The inclination of wheel member 5 is adjustable, to vary the stroke, by axial adjustment of a rod 4, Fig. 2, within sleeve 3, rod 4 being coupled to wheel 5 by a pin 7. Rod 4 is moved by rotation of a threaded shaft 13 by a hand wheel 12 set against a scale. Pin 7 engages wheel 5 through bearing members 19, 19a. Bearing member 8, or both bearing members 8, 9, may be mounted for axial sliding movement on shaft 10, and adjustably spring- loaded against wheel 5, Fig. 3 (not shown). The engaging surfaces of members 8 and 9 and wheel 5 may be convex or concave.
Patent GB-1018941-A (GB)
Title: Echo suppressors in transmission systems
IPC: H04B3/20
Filed: 1962-12-21
Abstract: 1,018,941. Two-way transmission. WESTERN ELECTRIC CO. Inc. Dec. 21, 1962 [Dec. 29, 1961], No. 48331/62. Heading H4R. In an echo suppressor which is located at the terminal of a 4-wire system and which allows the subscriber A thereat to break in whilst the distant subscriber is still talking, that is, during intersyllabic pulses, the detector ES which controls an attenuator 36 in the outgoing W-E path is disconnected from the E-W path when signals are present in the first path and not in the second. To this end, a pair of relays 23, 29 are controlled from the two paths through nogads (noise-operated gain-adjusting devices) 23, 24 and jointly control a relay 45. The charge on capacitor 44 maintains 45 energized during pauses in A's speech, and a capacitor 47 may be provided to delay the release of 23 to avoid the disabling of ES by echoes in the W-E path. Another arrangement, Figs. 4, 5 (not shown), provides for the attenuation of echoes when the suppressor is disabled, particularly when the transmission medium is a long one. In the absence of speech and when only A is talking there is no attenuation in the W-E path. When the distant subscriber is talking that path is shunted by an impedance matching the characteristic impedance of line, so that there is no reflection back to A. If now A starts to talk, the shunt impedance is removed and a matching T-network is inserted in the W-E path.
Patent GB-1508469-A (GB)
Title: Liquid dispenser
IPC: A47L15/46
Filed: 1975-11-25
Abstract: The washing-agent dispensing device has a pump (97) with an inlet for a washing agent and an outlet which is connected to a container, from which a liquid consisting of washing agent and water can be removed for washing tableware, and a control device for controlling the pump (97). The control device has a sensor device and a control circuit (112) which can be set in operation by the sensor device. The sensor device is designed as a bridge circuit, one branch of which is arranged with electrodes (135, 137) for measuring the electric conductivity of the liquid in the container. Depending upon the conductivity of the liquid, the pump (97) is controlled via a controllable switch (Q1) in the bridge circuit and the control circuit (112), in order to supply washing agent and to keep the washing-agent concentration of the liquid in the container constant. <IMAGE>
Patent GB-1193972-A (GB)
Title: A Clip Device
Inventor: WESTROP PETER ROY
IPC: A47L13/022
Filed: 1966-10-28
Abstract: 1,193,972. Brackets. PLASTOID Ltd. 30 Oct., 1967 [28 Oct., 1966], No. 48412/66. Heading A4B. [Also in Division E2] A clip device comprises a base portion 1 having an apertured projection la for a clip component 2 removably held therein by wedging action such that one end portion 2a of the clip component 2 is urged into clamping engagement with the base portion 1, for holding strip like articles therebetween, the clip component 2 being in the form of a tool which can be used separately from the base portion and the operative part 2c of which is constituted by the end of the component remote from the clamping end portion 2a. As shown, both parts of the device are made of a plastics material and the base portion is provided with foamed rubber pads 3 coated with an adhesive by which the component may be mounted on a panel. The clamping action of the portion 2a of the clip component is achieved by means of a formation 2d thereon, which engages the base portion 1. The base portion 1 is provided with roughened areas 1d. The clip component may be used as a screw-driver, scraper, feeler gauge or a spanner and may carry advertising material.
Patent GB-1082134-A (GB)
Title: Improvements in air-conditioning of automobile vehicles
IPC: B60H1/00
Filed: 1964-12-01
Abstract: 1,082,134. Heating and ventilating vehicles. REGIE NATIONALE DES USINES RENAULT. Dec. 1, 1964 [Dec. 2, 1963], No. 48846/64. Heading F4V. In a vehicle having a transversely extending girder 1 below the windscreen 2, fresh air apertures 11 in the upper side of the girder are controlled by a damper 10 and tubular ventilators 4 are provided one at each side of the vehicle, each ventilator including a reversible electric fan 5 and a control flap valve 7. A radiator 3 fed with vehicle engine coolant is located on an apertured partition of the girder and heated air from the radiator passes through orifices 12 and 13 into the passenger space. Both fans 5 may be operated to supply fresh air to the vehicle interior or the fans may be reversed to withdraw air from the vehicle interior and recirculate it through the radiator 3.
Patent GB-1376475-A (GB)
Title: Chemical applicator for grain
IPC: B02B1/06
Filed: 1972-10-24
Abstract: 1376475 Mixing with sweeping stirrers DRIALL INC 24 Oct 1972 48976/72 Heading B1C In an apparatus for applying liquid chemicals to grain, the grain is received in a container or bin 10 Figs. 1, 2 from which it is removed by a grain-transporting motor-operated element e.g. auger 19 in tube 16. Liquid chemicals are applied to the grain during its removal by means such as spray nozzles 32 located in a closed container 27 or nozzles (20) on the auger itself (Fig. 7 not shown). A monitoring member 39 in the bin is responsive to the level, i.e. the amount of grain in the bin and is interconnected with the chemical applying means and the motor-operated element to halt operation thereof prior to a fall in the grain level sufficient to expose the intake end of the motoroperated element, thereby assuring no leakage of fumes from the sprayed grain. The monitoring member can be an electric switch which responds to the pressure of the grain and may be connected in a circuit, Fig. 3, connected to a power source L 1 , L 2 , the circuit controlling the operation of transporting element motor 18, solenoid valve 65 in the liquid chemical supply line, chemical pump 54 and also motor 24 for an auxiliary grain transporting element or auger 23, 23a Fig. 1. The intake end of the auger 19 may be adjustable for different transport rates by means of a movable cover 36 Fig. 5.
Patent GB-1520790-A (GB)
Title: Transistor biasing circuits
IPC: H03F1/30
Filed: 1975-11-28
Abstract: 1520790 Transistor amplifiers SONY CORP 28 Nov 1975 [5 Dec 1974] 49047/75 Heading H3T In a transistor amplifier in which transistors Q 1  and Q 3 , both biased by transistor Q 2 , all three are assumed to have the same D.C. current gain h 11 , valid particularly in integrated construction; temperature variations of collector D.C. current in Q 1  and Q 3  due to variation in h 11  are minimized by making (R 4 +R 10 )/R 7  = R 5 /R 8  = R 4 /R 1  = R 5 /R 2 =k where k is the constant ratio of the collector D.C. currents Ic 3 /Ic 2  and Ic 1 /Ic 2 , whichever transistor has the greater dynamic range will normally have the higher emitter load, and its base will go to the upper end of R 10 , the base of the other going to the lower end, the equations above being adjusted so that the (R 4  + R 10 ) term applies to the transistor connected to the upper end. In cascaded amplifier stages, if the input stage Q 1  is an attenuator, possibly with gain control (not shown), R 1  will be larger than R 7  and the base of Q 1  will go to the top of R 10  and Q 7  to the bottom (Fig. 3, not shown). The bias circuit is decoupled by capacitor 13 to prevent feedback.
Patent GB-1338268-A (GB)
Title: Selective hydrogenation of alkynes
IPC: C07C1/00
Filed: 1971-10-22
Abstract: 1338268 Selective hydrogenation of acetylenes DOW CHEMICAL CO 22 Oct 1971 49269/71 Heading C5E Acetylenic impurities in a hydrocarbon mixture comprising isoprene or butadiene are selectively hydrogenated with an excess of H 2  in the presence of a copper-containing catalyst wherein carbon monoxide is added to the feed to give a CO content of 0À7-15 vol. per cent. The catalyst may comprise 85-99À9 wt. per cent Cu and 0À1-15 wt. per cent of Cr, Co, Mn, Ni, V, Ti, Mo, Cd, Zn and/or Ag, optionally dispersed in an inert carrier such as aluminium silicate, brick, stoneware, pumice or porous silica. A hydrogen excess of 4-7 fold with respect to the acetylene content of the feed may be used.
Patent GB-1275608-A (GB)
Title: Floating barrier for water pollutants
IPC: E02B15/06
Filed: 1969-10-08
Abstract: 1275608 Removing pollutants from water DITTA CAVALIERI RAG CESARE 8 Oct 1969 [19 Oct 1968] 49491/69 Heading C1C [Also in Divisions D1-D2] A floating barrier for arresting, confining and absorbing water pollutants in suspension therein comprises:-(a) a central rope 1 of polypropylene fibre; (b) a first layer 2 of polystyrene surrounding the rope 1; (c) a second layer 3 of polypropylene and granular polystyrene, said polypropylene consisting of staples and fibre waste; (d) a net 4 of polypropylene surrounding the second layer 3; (e) a third layer 5 of polypropylene in the form of staples and fibre waste; and (f) a net 6 of polypropylene fibre surrounding the layer 5. The first layer 2 may be granular or in block form. The polypropylene acts as a pollutantabsorber whilst the polystyrene acts as a waterproofing agent.