baber/WOPTO huggingface dataset:
Patent GB-1433011-A (GB)
Title: Spinneret assembly and its use
IPC: D01D4/04
Filed: 1973-04-19
Abstract: 1433011 Spinneret assembly E I DU PONT DE NEMOURS & CO 19 April 1973 [24 April 1972] 19079/73 Heading B5B A spinneret assembly 24 for use in melt spinning synthetic filaments 15 includes a spinneret plate 11, means for directing one or more streams of inert gas to flow across the outer face of the spinneret plate to exclude ambient air, and deflecting means for deflecting ambient air currents flowing towards the outer face so that they join the stream or streams of inert gas at an angle less than 45 degrees, and preferably parallel to the inert gas streams. As shown the deflecting means comprises a spinneret plate retainer 14 having one or more lips 37, Fig. 3, surrounding the filament space, each lip having an inner surface and an outer surface meeting of an edge adjoining the filament space, the inner surface being opposed to the outer face of the spinneret plate 11 and the outer surface approaching said outer face at an angle of 45 degrees. The retainer is spaced apart from the spinneret plate to form a gap through which inert gas is introduced, and the lower surface of the retainer merges into the lower surface of the lip in a cyma curve. Assembly 24 is supported in cavity 1 of heated block 2 by screw 3. Hot inert gas is supplied through passage 4, and part flows through passages 30, 31, 32 into plate 11 and hence into retainer 74 and part flows through passages 30a, 31a and 32a into the opposite side of plate 11 and retainer 14a. Inert gas then flows along the lower surface of plate 11 from both retainers 14 and 14a towards filaments 15. The outer surface of block 2 is covered with insulations 20 except for the bottom portion of cavity 1 which is open to a conventional quenching chimney 21 having parallel wings 22 and a source 23 of cool quenching air. As seen in Fig. 3, plate 11 and retainer 14 are separated by metering plate 44 and distribution plate 45. Retainer 14 has several parallel longitudinal grooves comprising a manifold passage 34, a dissipater passage 47 and a shallow slot 48. Distribution plate 45 has a single large diameter aperture above the manifold passage 34, and a comb like edge with a plurality of slots 46, the U-shaped ends of which lie above the manifold passage 34. Figs. 7 and 8 (not shown) show the flow patterns of the resulting gas and air streams, using respectively a rectangular spinneret and a round spinneret with an annular filament array.
Patent GB-803939-A (GB)
Title: Rapid priming siphon for water flushing tanks
Inventor: TCHOUBRITCH MICHEL
IPC: E03D1/05
Filed: 1957-06-18
Abstract: 803,939. Siphon-discharge water-waste-preventers. SOC. D'ETUDES ET D'APPLICATIONS DE PROCEDES NOUVEAUX. June 18, 1957, No. 19140/57. Class 26. A siphon for flushing tanks comprises a rigid chamber 12 with an open lower end, a flexible priming tube connected to the coupling 1 (clamped to the tank 18) the end 8a generally above the water level being attached to the roof thereof so as to provide a space 12a, and an arm 13 fastened to the chamber 12 to prime the siphon by pivoting about the point of attachment of the tube to the tank 18. The tube comprises a sheath 8 which covers a rust-proof coiled spring 5 fixed to the rim 2 of the coupling 1 and is sealingly attached to a collar 4 thereon. The spring is bent at 6 about a pin 7 attached to the lever 13 to which is fastened a chain 22 passing through a grommet 23 and having a handle 24. On pulling the chain 22 the flush is initiated as shown by the arrow F1 in Fig. 3 and proceeds as similarly shown in Fig. 4, the counter-weight 17 facilitating return to the vertical position. A detachable elastic apron 15 covers an opening 14 in the chamber 12, which yields when the tube is pivotally moved, but cannot enter the opening 14 because of a fixed guard 10 on a clip 9 holding the sheath 8 in place.
Patent GB-1162046-A (GB)
Title: Improvements in or relating to Automatic Control of the Power Dissipated by Amplifiers
IPC: H03F3/22
Filed: 1967-04-26
Abstract: 1,162,046. Amplifying circuits; radio transmitting systems. C.I.T.-COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 26 April, 1967 [11 May, 1966], No. 19241/67. Headings H3W and H4L. A device for the automatic control of the energy dissipated in an amplifier from that received from a D.C. power supply maintains the energy dissipation below a maximum value, and comprises means 18 for combining the two outputs of a reflectometer 14 located between the amplifier 13 and its load impedance 15, with the output of a wattmeter circuit 17 measuring the energy supplied by the D.C. power supply 16. The combined output of the adding device 18 is compared with a reference voltage W in threshold means 19, whereby when the combined output exceeds the reference voltage a control is applied to the energy dissipated in the amplifier. As shown, the control means comprises a variable attenuator 12 connected in the drive from driver stage 11. In a second embodiment (Fig. 2, not shown), the two outputs of the reflectometer are combined in a differential amplifier, the output of which is combined in a second differential amplifier with the output of the wattmeter circuit; this comprises a resistor in the negative lead of the power supply, which is of the stabilized type. The threshold means comprises a diode with the combined output fed to its cathode and a negative delay bias applied to the anode via a series resistor; when the output voltage exceeds the delay, a negative-going control voltage is applied as bias to reduce the gain of a variable-gain amplifier connected between the driver stage and the power amplifier. The adding device may comprise a digital computer, more especially where several amplifiers are centrally controlled.
Patent GB-1215835-A (GB)
Title: Automatic press control
Inventor: BOLD JOHN
IPC: D06C7/00
Filed: 1968-04-24
Abstract: 1,215,835. Measuring temperature electrically. BRITISH LAUNDERERS' RESEARCH ASSOCIATION April 2, 1969 [April 24, 1968], No. 19297/68. Heading G1N. The heating coils of a drying apparatus are switched off at a preset time after the temperature, sensed by thermistors, reaches a predetermined value. As applied to the drying of fabrics, a press comprises two platens 1, 2 Fig. 1 which can be closed together onto the fabric and incorporate heating elements 6, 5 and thermistors 8, 14. The latter are connected in circuitry to set a timing device at a predetermined temperature, so that after a preset interval compressed air forces a ram 13 to open the platens. The temperatures on the surfaces of the platens are measured by thermistors 17, 18.
Patent GB-630201-A (GB)
Title: Improvements in or relating to apparatus for synchronising two frequencies
IPC: H03L7/085
Filed: 1946-06-27
Abstract: 630,201. Automatic frequency-control systems. SOC. FRANCAISE RADIO ELECTRIQUE. June 27, 1946, No. 19309. Convention date, June 27, 1945. [Class 38 (iv)] [Also in Groups XXXVI and XL (b)] In apparatus for synchronizing two frequencies, two further A.C. voltages at the difference frequency are derived, at a relative phase angle of which the sign corresponds with the sign of the difference frequency, and which effect the energization of relays controlling the frequency regulator. As shown, Fig. 1, the voltages U1, U2 both at the difference frequency and having a relative phase angle dependent upon the sign of the difference frequency, are applied, through the class-C anplifiers A1, A2 to the circuit E, which may comprise a thyratron. The output from the latter consists of currents I1, I2 which energize the frequency control relays X1, X2 respectively. The wave forms a, b, Fig. 3, of I1, I2 are interchangeable in response to the sign of the difference frequency, and only that relay which carries the wave form a is operated to effect frequency correction. Relays X1, X2 remain at rest due to the limiting effect of the capacitance-resistance coupling elements at a predetermined minimum difference frequency. An alternative form of the circuit E may comprise two identical amplifiers interconnected so that the output of each feeds into the input of the other. In a second embodiment, not shown, a CRT-tube is employed in which the " spot " rotates at the difference frequency and in a sense depending on the sign of the difference frequency. Two or more P.E. cells are situated on the trace of the " spot " and when activated generate volages which are applied to A1, A2.
Patent GB-1099313-A (GB)
Title: Improvements in cellular structural material and method
IPC: B32B27/00
Filed: 1965-05-07
Abstract: A cellular structure is produced by compressing a foamable thermoplastic material containing a fluid flowing agent, releasing the pressure in one direction whilst concurrently confining the material against expansion in the remaining directions and concurrently foaming the thermoplastic to form a structure with cells elongated in the direction of expansion and cooling the resulting cellular material to a rigid structure. The preferred thermollastic is polystyrene, suitably in the form of expandable beads.  The material is generally foamed into a flat sheet with the opposed faces perpendicular to the direction of elongation of the cells.  One form of apparatus for preparing such materials comprises a pair of webs between which foamable material is inserted.  These webs then pass between endless belts in a heating and compression station, and subsequently between further endless belts which diverge, the width of the foamable material being kept constant meanwhile.  The foamed material is then chilled. Alternatively, an extrusion apparatus, whose die has diverging walls in the exit nozzle area, may be used. In either case the webs between which the material is foamed may be stripped, e.g. if they are chromium or stainless steel, or may remain to form a laminate (see Division B5).  The outer skins which form on the faces of the foamed sheet may be removed, and the remaining material may be used as a filler (see Division B1).ALSO:A cellular structure is produced by compressing a foamable thermoplastic material containing a fluid flowing agent, releasing the pressure in one direction whilst concurrently confining the material against expansion in the remaining directions and concurrently foaming the thermoplastic to form a structure with cells elongated in the direction of expansion and cooling the resulting cellular material to a rigid structure.  The preferred thermoplastic is polystyrene, suitably in the form of expandable beads.  The material is generally foamed into a flat sheet with the opposed faces perpendicular to the direction of elongation of the cells.  The outer skins which form on the faces of the foamed sheet may be removed, and the remaining material may be used as a filter, since the foamed material comprises mostly individual closed cells extending the width of the sheet. Such a filter may be covered on one or both sides by porous tissue or cheesecloth.
Patent GB-299338-A (GB)
Title: Improvements in or relating to thermionic radio receiving sets
IPC: H01F19/04
Filed: 1927-07-21
Abstract: 299,338. Igranic Electric Co., Ltd., Willans, P. W., and Charman, F. J. H. July 21, 1927. Transformers.-Windings C<3> C<4> of a transformer for use in a thermionic-valve amplifier are wound respectively in V-section grooves g<2>, g<3> cut helically round an insulating-base and interleaving one another and windings n<2>, r are wound in the same grooves but of thinner wire so that they sink to the bottom of the grooves and are held away from the former windings by the converging sides of the grooves.
Patent GB-960456-A (GB)
Title: Circular knitting machine for the production of partially reinforced hosiery
IPC: D04B9/18
Filed: 1961-05-30
Abstract: The circular machine described in the parent Specification has a rotating needle cylinder and has the rotating cam system moving at a speed which is three or more times that of the cylinder.  The other cam system remains stationary.  The rotating cam system, however, is operative only during one of its three or more revolutions during which the needle cylinder makes a complete revolution.  By increasing the speed of the rotating cam system, it is possible to increase the width of the area of reinforcement in which the reinforcing yarn is knitted together with the main yarn in one course and knitted back alone within the reinforced area before the next course containing the main yarn and reinforcing yarn are knitted.
Patent GB-1431628-A (GB)
Title: Dispenser for an intra-uterine device
IPC: A61F6/14
Filed: 1974-05-03
Abstract: 1431628 Intra-uterine device inserter FUJI LATEX CO LTD 3 May 1974 [26 Feb 1974] 19443/74 Heading A5R A dispenser for an intra-uterine device comprises a tube 1 split longitudinally into two opposed members a and b held together by elastic means r and having an enlarged section 2 to receive an intra-uterine device, and a plunger (5) as illustrated in Figure 5 (not shown) for forcing the intra-uterine device from the expanded section 2 through the tube section 1', against the action of the elastic means r, to exit at the end 4. In the embodiments disclosed the elastic means consist of one or more rubber rings r which may also serve to indicate the depth of insertion of the device into the body. The plunger also may carry markers to indicate the depth of insertion of the plunger (and thus the position of the IUD) in the tube. The expanded section may be provided with covering surfaces 12 to prevent the IUD from falling out of the dispenser. In the embodiment of Figure 12 (not shown) these surfaces are enlarged and also act as guides for the IUD. The leading ends of the opposed members a and b may be provided with opposed recesses and protrusions to prevent misengagement of the two halves during insertion of the dispenser into the uterus. The plunger has a cup-shaped end to receive the stem of the IUD.
Patent GB-596827-A (GB)
Title: Improvements relating to conveyors
IPC: B65G39/09
Filed: 1945-07-30
Abstract: 596,827. Endless-belt conveyers. NEW CONVEYOR CO., Ltd., and PURNELL, W. R. July 30, 1945, No. 19482. [Class 78(i)] In belt supports of the kind having a hollow base of inverted channel section in which lubricant supply pipes,are arranged, the pipes are enclosed by.a shield of trough section. The upper part of the belt is carried by a roller or rollers a mounted on hollow spindles b carried by bearings c on a hollow base d of inverted channel section. The spindles b communicate with passages e in, the bearings c and also with passages f in one or more of the bearings. The hollow base d contains pipes g provided with connections b leading to passages f. A metal shield plate i is mounted in base d to enclose pipes g. The sides of plate i are flexible and resilient and preferably the free edges are beaded. For holding the shield plate i in position, projections are provided which are either integral with the sides of the shield plate or are formed by the heads of rivets inserted through the sides of base d.
Patent GB-357638-A (GB)
Title: New or improved anti-rolling devices for automobiles
IPC: B60G21/055
Filed: 1930-06-27
Abstract: 357,638. Vehicle suspension systems. WOODHEAD, G. A., The Grange, Old Park Road, Roundhay, and SANDERS, T. H., 77, Cowper Street, both in Leeds. June 27, 1930, No. 19537. [Classes 108 (ii) and 108 (iii).] In systems adapted to increase the resistance to lateral tilting, the opposite ends of the laminated springs a are connected by a transverse member consisting of a multiplate spring b, or of one or more pairs of connected cantilever springs flexible in a vertical direction and secured at each end to some of the leaves of the main springs. In some cases the transverse member may consist of a rigid bar mounted at each end in trunnion blocks which are free to pivot about longitudinal axes between and against the action of the plates of the main springs. In one form the invention is applied to a construction disclosed in Specification 314,689, [Class 108 (iii), Springs &c.]. In this case trunnion blocks c, firmly secured to the springs a and housing the ends of the spring b, are non-rotatable about a longitudinal axis and are formed with side flanges to take the thrust. In a modification, the two cantilever springs b<1>, Fig. 4, are interconnected by a tie bolt f having spherical ends and a distancepiece f<1>. In a further modification, the four cantilever springs b<1>, Fig. 9, are connected together in pairs and are connected to the springs a by means of boxes g which are retained in position by links h secured to the inner spring clips.
Patent GB-1337089-A (GB)
Title: Dehalogenation process
IPC: C01G43/025
Filed: 1971-06-09
Abstract: 1337089 Dehalogenation of oxyhalides GENERAL ELECTRIC CO 9 June 1971 [17 July 1970] 19564/71 Headings C1A and C1N Solid metallic oxyhalides wherein the metal is U, Pu, Ti, Zr, Si, W or mixtures thereof are dehalogenated by heating at 600-1600‹ F. in an atmosphere which comprises at least 1 mole of an alcohol per mole of halogen to be removed. The gas may also comprise components which are inert, e.g. N 2 , O 2 , air, inert gases or mixtures of these, or components which are active, e.g. H 2 , NH 2  and mixtures of these. The oxyhalide may be dehydrated by heating at 100-400‹ C. before dehalogenating. The halogens removed may be recovered by passing the withdrawn gas through water.
Patent GB-799230-A (GB)
Title: Improvements in or relating to ventilators
Inventor: O'HEA IGNATIUS JOHN
IPC: F24F13/15
Filed: 1955-07-06
Abstract: 799,230. Ventilators. COLT VENTILATION, Ltd. June 27, 1956 [July 6, 1955], No. 19577/55. Class 137 A louvre ventilator, adapted to be recessed in a wall of a building and which is substantially weather proof when closed, comprises a box-like frame 2 having a fascia flange 4, sides 6, and an inner flange 8, and a number of louvres 16 each of which is secured along one longitudinal edge to a rod 14 having its ends mounted in corresponding holes in a pair of upstanding flanges 10, secured to, or formed integral with, the flanges 8. The louvres 16 are each formed from a single sheet of metal, the hinge-side longitudinal edge being bent over to form a double thickness projection 18 which is .cut away at the corners to clear the flanges 8, and has its free edge bent up into a circular section beading 20 to receive a hinge rod 14. The opposite longitudinal edge is shaped into an inverted semi-circular trough 22, each side being formed with a tapered trough 24 running from the hinge beading 20 beyond the trough 22 and communicating with the latter. The louvres carry brackets 28 which are linked by a control bar 30 connected at 52 to one end of a toothed chain which is housed in a shield 36 secured by a bracket 40 to the frame 4, and is driven by a worm wheel having a control handle 44. The stiff section of the chain is shielded by a balloon 46. When the ventilator is closed the troughs 22 overlap the beadings 20 and the troughs 24 overlap each other and the flanges 8. A two armed spring 50 is mounted on the securing screw 52, one end of the spring being turned over an end member 48 of the chain 56 and the other end over the bar 30 in order to exert a downward pressure on the member 48.
Patent GB-242568-A (GB)
Title: Improvements in glasses
IPC: C03C3/093
Filed: 1925-08-04
Abstract: 242,568. Jenaer Glaswerk Schott & Gen., Schott, O., and Thiene, H. Aug. 4, 1925. Production of metal.-A glass which is insensitive to abrupt temperature change contains at least 45 per cent of silica, from 2 per cent to 15 per cent of boron trioxide, and from 4 per cent to 30 per cent of magnesia and lime together, and is characterized by the fact that it contains from 20 per cent to 30 per cent of alumina and not more than 8 per cent of alkali oxide. The magnesia or lime may be replaced .by barium oxide or zinc oxide in equivalent quantities, and lead oxide or antimony oxide may be introduced in quantities not exceeding 6 per cent. Opal glass may be produced by the addition of substances usually used for this purpose.
Patent GB-1443825-A (GB)
Title: Azo dyes particularly for shading basic dye mixtures
IPC: C09B33/28
Filed: 1973-04-25
Abstract: 1443825 Azo dyes WILLIAMS (HOUNSLOW) Ltd 25 April 1974 [25 April 1973] 19622/73 Heading C4P Novel azo dyes having the formula (where R 1  and R 2  independently are Cl, Br, NO 2  alkyl or optionally substituted arylazo; n and m independently are 0-3 and where n and/or m is above 1, the R 1  and R 2  groups may each be different; and the chain-dotted line indicates that the methyl group is optionally present) are prepared by reacting the corresponding monoazo compounds with formaldehyde or a compound capable of producing formaldehyde under the conditions of the reaction. Alternatively the dyes are prepared by diazotizing the appropriate anilines and coupling with the corresponding tetra-aminodiphenylmethane, which is prepared by reacting the corresponding diamo compound with formaldehyde or a formaldehyde precursor. The dyes are particularly used for shading basic dye mixtures such as Nigrosines and Indulines.
Patent GB-1418334-A (GB)
Title: Devices whereby the local fluid rates in a fluidised bed are  made to fluctuate
IPC: B01J8/40
Filed: 1973-04-25
Abstract: 1418334 Fluidised bed apparatus UNISEARCH LTD 25 April 1973 [27 April 1972 6 April 1973] 19671/73 Heading BIF [Also in Division F4] In a fluidised bed apparatus, fluid flow is cyclically interrupted by rotating member 13, Fig. 2, or reciprocating member 21, Fig. 3, so that a uniform bed is maintained and the net fluid flow is maintained constant. The apparatus may be used for heat exchange, coating and agglomeration.
Patent GB-922895-A (GB)
Title: Dosimeters
IPC: H01J47/04
Filed: 1961-06-01
Abstract: 922,895. Electrostatic measuring instruments; capacitors. LANDIS & GYR A.G. June 1, 1961 [June 9, 1960], No. 19829/61. Class 37. An electrostatic-type dosimeter is characterized in that it is flat (see Fig. 2) and carries an identification tag and is provided with eyes 4 so that it can be worn on a chain. The casing 1 is of metal preferably of low atomic number (Z < 10) and one electrode 6 is integral with the casing and projects into the flat wound capacitor 8. The other electrode is a flexible spring 12 which can be brought into contact with conductive tube 15 by means of amagnet 14 to enable the capacitor to be charged via pin 11 and sleeve 9. The casing can be sealed with a plastic insert 13. Nitrogen and argon are referred to as alternatives to air for filling the ionisation chamber. A coating or inner casing of tissue equivalent material may be provided in the ionisation chamber. The capacitor (Fig. 3) is flat and wound as a support 15 has the plastic dielectric sheets 19, 20 projecting beyond the ends of the foils 16, 18.
Patent GB-224002-A (GB)
Title: Improvements in or relating to hair-curling devices
IPC: A45D7/04
Filed: 1923-08-03
Abstract: 224,002. Machino, J., and Lansiaux, A. Aug. 3, 1923. Hair-curling appliances.-A sachet for application to a tress of hair wound on a curler for permanent hair waving comprises a wrapper 1 of grease-proof paper or other waterproof material, and an absorbent pad 3 of felt or of one or more layers of absorbent paper secured upon one face of the wrapper 1 so that it can be wrapped by the wrapper around and in direct contact with the hair. An additional wrapper 2 of artificial oilsilk is preferably provided outside the wrapper 1, and the whole is secured together by metallic stitches 4, or by sewing. Specification 207,948 is referred to.