baber/WOPTO huggingface dataset:
Patent GB-1177313-A (GB)
Title: Improvements in and relating to Vacuum Valves
IPC: F16K41/10
Filed: 1968-03-07
Abstract: 1,177,313. Valves. BALZERS PATENTUND BETEILIGUNGS-A.G. 7 March, 1968 [28 March, 1967], No. 11248/68. Heading F2V. An isolating valve for high vacuum installations comprises a closure member 4 loosely carried by a stem 6 and engageable with a knife-edge seating 11. To ensure that the closure member is correctly orientated relative to the seating prior to engaging the latter, an auxiliary guide ring 12 is secured to the closure member via resilient diaphragm 13. The ring co-operates with groove 14 to guide the closure member. As an alternative, the ring 12 is replaced by ring (22) mounted on the bottom of the closure member by diaphragm (21). The ring (23) co-operates with shoulder (23) adjacent the seating to guide the closure member.
Patent GB-251980-A (GB)
Title: Improvements in or relating to stringed musical instruments
IPC: G10H3/22
Filed: 1926-04-30
Abstract: 251,980. Tournier, M. May 7, 1925, [Convention date]. Drawings to Specification. Thermionic generators and amplifiers. - Relates to an electrically vibrated musical instrument the strings of which are vibrated by a similar number of electromagnets or the like, the magnets of several distinct notes being connected in a circuit including a common source of periodic current having suitable harmonics for vibrating the different strings by resonance. The complex periodic electromative force may be produced by means of thermionic valves with tightly coupled grid and plate circuits, the coils being of resistance wire and of large distributed capacity. Two lamps coupled as in the " Abraham multivibrator" may be used. Or the regular charging or discharging of a rarified neon &c. lamp may be utilized, preferably with a valve amplifier, the electromagnets of a single group being in series in the plate circuit of the valve but usually shortcircuited, the contact being opened on playing a note. Reference has been directed by the Comptroller to Specification 242160/12, [Class 38 (v), Electric switches &c.].
Patent GB-554718-A (GB)
Title: Manufacture of delustered or pigmented synthetic linear polyamides
IPC: C08J3/20
Filed: 1941-09-08
Abstract: 554,718. Polyamides. DU PONT DE NEMOURS & CO., E. I. Sept. 8, 1941, No. 11441. Convention date, Sept. 10, 1940. [Class 2 (iii)] Pigments or delusterants are incorporated in synthetic linear polyamides by adding them to the heated reacting materials after ebullition has started and before the mass has increased in viscosity. The materials are preferably reacted in an autoclave provided with a charging lock which is filled with an aqueous slurry of the filler, e.g. titanium dioxide. In example hexamethylene diammonium adipate, water and a small quantity of acetic acid are heated in a kettle from which air has been displaced by nitrogen, the temperature being raised to 212 C. under a pressure of 220 lbs. A slurry of 0.1 part TiO 2 in 0.7 parts water is then added through the charging lock. The autoclave is further heated while bleeding off water until a temperature of 275 C. is attained whereupon pressure is gradually reduced to atmospheric. The polymer is extruded in the form of a ribbon and contains 0.35 per cent. TiO 2 .Specifications 461,236 and 461,237 are referred to.
Patent GB-1105835-A (GB)
Title: Improvements in or relating to the continuous ringless spinning of textile fibres
IPC: D01H4/10
Filed: 1966-03-16
Abstract: In break-spinning apparatus comprising a rotating spinning chamber into one side of which fibres are supplied and from the other side of which the spun yarn is withdrawn, a disc is provided on the yarn outlet to screen the openings through which the air or other carrier medium escapes from lint &c., the incoming fibres, and the length of pre-spun yarn &c. which on starting or restarting is passed through the inlet to pick up fibres from the collecting surface.  In Fig. 1, the yarn-outlet is a bore 8 in a member terminating in a frusto-conical part 9 the lower face of which constitutes the disc. The spinning chamber comprises two frusto conical portions with a collecting-surface 3 where they join, a channel 11 being formed between the part 9 and the upper wall of the chamber through which air &c. is withdrawn centrifugally as the chamber rotates through ducts 5.  The yarn is withdrawn by rollers 16 and is wound up at 17.
Patent GB-250767-A (GB)
Title: Improvements in means for corrugating roofing and like sheets
IPC: B21D13/02
Filed: 1925-05-02
Abstract: 250,767. Commin, F. J., and Wright, A. H. J. May 2, 1925. Corrugating. - To prevent rupture in corrugating sheets of thin metal asbestos cement, pitch fibre, or other material, a series of plunger dies 2 are arranged to engage the sheet successively either from the centre outwardly or from one edge to the other. A lower solid die 1 supporting the work is gradually raised by an hydraulic ram 11 and the dies 2 recede in succession against the action of springs 10.
Patent GB-928096-A (GB)
Title: A method of forming a reinforced marginal border on a piece of leather or other flexible material and a machine for carrying out said method
IPC: C14B11/00
Filed: 1961-03-29
Abstract: 928,096. Folding and finishing edges of non- metallic sheet material. R. TOSI. March 29, 1961 [April 2,1960], No. 11492/61. Class 42 (1). A process for forming a reinforced marginal border on a piece of leather or the like, is characterized in that a thread comprising a core and a covering of thermoplastic material is applied to a chamfered border of the workpiece, the thread is heated and the border folded back on the thread. Fig. 1 shows the chamfered edge 2 of a workpiece with thread 3 thereon and Fig. 3 shows the border after folding over and pressing down. The thermoplastic material acts as an adhesive and the core which may be of glass fibres acts as reinforcement. Fig. 5 shows apparatus for carrying out the process. In operation workpiece 1 is forwarded intermittently in the direction of arrow 31 by gripper member 19 and spring-loaded foot 17 at the same time pulling thread 3 from bobbin 29. The thread is heated by heating member 15 and the border of the workpiece is folded over on to the somewhat fluid thread of turning members 23, 27 and is pressed down under presser member 16.
Patent GB-938093-A (GB)
Title: Electrol ytic cell for the preparation of lead with alkaline metals
IPC: C25C3/00
Filed: 1962-03-26
Abstract: 938,093. Electrolytic cells for producing leadalkali alloys. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. March 26, 1962 [March 29, 1961], No. 11494/62. Class 41. An electrolytic cell for the production of lead-alkali alloys, e.g. lead-sodium-potassium, by the electrolysis of molten alkaline chlorides in contact with molten lead as cathode wherein that internal part of said cell in contact with the lead alloy and the electrolyte is lined with magnesia refractory (2) and that part in contact with chlorine and electrolyte is lined with alumino-silicate refractory (3); the cell having a graphite anode (15) with a heated lead cathode flowing under the anode and in a circuit including a heat-exchanger (21). The cathodic alloy is circulated by a mechanical pump (20). Molten lead is supplied batchwise to the circuit from the electrically-heated melting pot (23), kept under nitrogen and connected with the pressurized side of the pump by pipe (24) which, at the instant of charging, is heated above the melting point of lead; alloy is discharged, also batehwise, into a tank (25) connected through pipe (26) to the pump inlet. The magnesia refractory contains about 90% MgO and the alumino-silicate material contains 30% Al 2 O 3 . Refractory insulation (4) separates the inner lining from the outer metal casing. Stainless steel pipe (6) is connected to the pressurized part of the circulation system. Pipe (8) used in conjunction with trap (7) is connected with the low pressure side of the circulation system, and with collecting tank (25) which is filled by gravity on heating pipe (26) above the melting point of the alloy and is kept under nitrogen. Molten salt electrolyte is fed through inlet (18) and comprises a mixture of 55% NaCl and 45% KCl to produce alloy of 89% Pb, 10% Na, 1% K. In an example, salt temperature is 710 C. and lead alloy temperature is 700 C., said alloy being 8 cms. deep at the start of electrolysis and increasing to 14 cms. with the feeding of 375 kgs. of molten lead and 111 kgs. of molten salt mixture. Current is at 1.7 A/cm.<SP>2</SP> at 5.5v for anodic surface of about 5,500 em.<SP>2</SP> and cathodic surface of about 11,000 cm.<SP>2</SP> and 55,000 amp.-hrs. are required. 410 kgs. of alloy yielding 43.5 kgs. of alkali metal were discharged with a current yield of about 92% and power consumption of 7 kwh. per kg. of metal produced.
Patent GB-636669-A (GB)
Title: Improvements in or relating to signalling in telephone systems
IPC: H04M7/16
Filed: 1946-04-15
Abstract: 636,669. Alternating current telegraphy ; valve relay circuits. STANDARD TELEPHONES & CABLES, Ltd., WRIGHT, E. P. G., GOULD, W. F., HARGREAVES, T. F. S., and REYNOLDS, W. J. April 15, 1946, No. 11520. [Class 40 (vi)] [Also in Groups XXIX and XL (b)] In the telegraph receiver, Fig. 8, for use in supervisory signalling for a trunk telephone system [see Group XXXIX], incoming signals are amplified by V6 whose output is fed to voltage doublers D1, D2, D<1>1, D<1>2 in the biassing circuits of valves V7, V8. Doublers D1, D<1>1 are opposed to, and produce twice the voltage produced by D2, D<1>2 and the latter pair have large time constants compared with the former. In the normal condition (i.e. receipt of steady tone) V7 is thus conducting and V8 cut off. When a mark is received (i.e. absence of tone) voltages generated by D1, D<1>1 cease'and those due to D2, D'2 take charge to cut off V7 and render V8 conducting. In the event of permanent absence of tone steady biasses from an H.T. bleeder put the valves into a spacing condition. A.V.C. voltage is fed from D2 to valve V6. In a receiver which will respond to pure 750 c.p.s. impulses, Fig. 6, a skew hybrid transformer admits a small proportion of the incoming signal to the amplifier V3. Pure 750 c.p.s. operates through the lower rectifier network to overcome a standing negative bias on valve V4, thereby operating AR. If the incoming signal is mixed with other frequencies, the latter produce in the upper rectifier network a D.C. potential opposing that one to the 750 c.p.s. current so preventing the latter from overcoming the standing bias on V4. Specifications 555,999, 566,156, 613,137, [Group XL (b)], and 636,668 are referred to.
Patent GB-266565-A (GB)
Title: Improvements in electric batteries
IPC: H01M50/77
Filed: 1926-05-01
Abstract: 266,565. Gill, E. R. May 1, 1926. Electrolytes; circulating; gas exits. - In a galvanic battery consisting of sealed cells liquid is forced by pneumatic pressure from one cell to another for maintaining the proper level &c., the inlet and outlet to the first and last cells being fitted with non-return valves. The cells 12 are fitted with air-tight plugs 13 through which the electrodes 14 project and are packed air-tight. Tubes 19 pass from the liquid level in one cell to the next cell and the first, cell is connected by a tube 22 with a non-return valve 23 to a chamber 20, and the last cell by a tube 28 with a non-return, valve 29 to a chamber 24. A tube 26 with a non-return valves 27 passes from the chamber 24 to the chamber 20. The chamber 24 is provided with a rubber bulb 30 or like device whereby the pressure in the chamber can be increased and relaxed to force liquid from the chamber 20 through the cells in order. The chamber 20 is provided with a tube 32 carrying a filling-plug 34 and a gasrelief valve 33<a>.
Patent GB-1071930-A (GB)
Title: Improvements relating to lacquer solutions
Inventor: BLOMEYER FRIEDRICH
IPC: C08G63/137
Filed: 1966-03-16
Abstract: A lacquer solution comprises an aliphatic polyisocyanate and a hydroxyl group containing polyester which has been prepared by reacting a mixture of a mixture of phthalic acid, hexahydrophthalic acid and/or a derivative thereof with a polyhydric alcohol, the polyisocyanate and polyester being dissolved in an organic solvent. The molar ratio of phthalic acid to hexahydrophthalic acid in the polyester is most suitably from 2:1 to 1:2.  If desired isophthalic acid may be mixed with the other two acids to form the polyester. Suitable derivatives of hexahydrophthalic acid are methyl hexahydrophthalic acid and endomethylene hexahydrophthalic acid.  The polyhydric alcohols which may be used to form the polyester are trimethylol propane, isomeric propylene and butylene glycols, ethylene glycol, pentamethylene glycol and 1,6-hexanediol.  The aliphatic polyisocyanate may be any di- or polyisocyanate including cycloaliphatic isocyanates. Preferred polyisocyanates are the biuret triisocyanate from 3 mols of hexamethylene diisocyanate and 1 mol of water; di- or trimerization products of aliphatic diisocyanates, acyl polyisocyanates such as that from 1 mol of adipic acid and 4 mols of hexamethylene diisoisocyanate and addition products of an excess of aliphatic diisocyanate with a polyhydric alcohol.  Suitable solvents are ethyl acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate and methyl ethyl ketone, if desired in admixture with an aromatic solvent such as toluene or a xylene.
Patent GB-290433-A (GB)
Title: Improvements relating to collapsible tubes
IPC: B65D35/24
Filed: 1927-04-30
Abstract: 290,433. Covell, W. G., (Land, J. R.). April 30, 1927. Tubes or containers, collapsable. - A collapsable tube is provided with means for impressing the contents with a design, words, or other distinctive mark as the substance is expelled from the tube, and also for parting the contents after the passage of a prescribed quantity. The design is impressed by means of an embossing roller 7, mounted in the aperture end of the tube 1, and adapted to be rotated by the substance in its passage. The substance is parted by a cutter 9 fixed on the roller. The Provisional Specification describes also the use of one or more small rollers, mounted in the nozzle, to assist in carrying forwards the exuded substance, and the use of bristles adapted to bear on the embossing roller, and to remove any of the, tube contents therefrom.
Patent GB-1424307-A (GB)
Title: Pressure heated fuser assembly
IPC: G03G15/20
Filed: 1974-03-15
Abstract: 1424307 Heat fixing XEROX CORP 15 March 1974 [21 March 1973] 11578/74 Addition to 1413103 Heading G2H The pressure roll fusing apparatus of the parent Specification is modified by using a pneumatic damper for the motion control.
Patent GB-806882-A (GB)
Title: Improvements in or relating to machines for turning and/or boring non-circular workpieces
IPC: B23Q35/20
Filed: 1955-04-21
Abstract: 806,882. Copying-lathes. GOETZEWERKE F. GOETZE A.G. April 21, 1955 [April 24, 1954], No. 11583/55. Class 83 (3). Apparatus for turning and/or boring pistonrings and other non-circular workpieces, in which a tool-holder is adjustable to different diameters of the work, is controlled by two lever systems, the first of which embodies a tool-holder arm 6, Fig. 1, and a rigidly-connected transmission arm 5 pivoted on an adjustable axis 11. The second lever system embodies a tracing-arm 3 to contact templet 1 and a rigidly-connected control arm 4, the transmission arm 5 carrying a projecting member 12 with a knife-edge or point which bears against the control-arm 4 and moves along the latter when the first lever system is adjusted. In a machine embodying the invention, Fig. 2, a " bundle " of rings 10 are turned by outside working tools on an arm 6<SP>1</SP>, and boring tools carried by an arm 6, both sets of tools pivoting with a member 16, the latter is vertically-adjustable on a guide 17 for adjusting the diameter to be turned. A knife edge 12 secured to the bell-crank 5 contacts a lever 4 pivoting with the member 15 and oscillated by the cam 1 through roller 2 and lever 3. Diameter adjustment does not change the out-of-round form of the rings being turned, since the distance a, Fig. 1, is kept equal to the radius r of the work during adjustments.
Patent GB-861182-A (GB)
Title: Machine for the quick preparation of large quantities of high-grade coffee drink
Inventor: BOSSI ENRICO
IPC: A47J31/22
Filed: 1958-04-11
Abstract: 861,182. Coffee-making machines. GENNARI, P. April 11, 1958, No. 11613/58. Class 129. Coffee beverage is produced by supplying hot water to an impeller having an annular chamber, formed by concentric strainers, to receive coffee grounds. As shown, motor 64 drives a shaft 63 carrying a bottom disc 62 whose hub 62a has a cross-spline 65 extending through a groove 63a in the top of shaft 63. A top disc 61 is slipped over a hub 66 screwed on to a hub 62a and is held by a hand wheel 67. Strainers 68, 69 are secured between discs 61 and 62, a packing 71 being provided on disc 61. A lip 61a on disc 61 encircles strainer 68 to divert the infusion into a channel 73, formed in casing 72, from which it is discharged through conduit 74. The casing 72 has a hood 75 connected thereto by a hinge 77. Hot water is supplied through a cock in hinge 77 to a pipe 78 opening into the bore 66a of hub 66 which opens through ports 66b into the space 85 inside strainer 69. The cock is closed when hood 75 is lifted. A bed-plate 80 beneath the rotor encloses a heating resistor 81 embedded in a filling 82. Exchangeable strainers of various heights may be provided. In a modification, hood 75 is mounted for rotation and axial vertical displacement in a flanged bush 87 secured to a bed-plate 88 fast with casing 72. A tongue 86b on support 86 engages a notch 87a in bush 87 to locate the hood accurately. An implement is provided for filling the annular chamber.
Patent GB-1468010-A (GB)
Title: Products composed of conjugate fibres
IPC: D06M101/16
Filed: 1973-03-12
Abstract: 1468010 Coated conjugate fibres IMPERIAL CHEMICAL INDUSTRIES Ltd 25 Feb 1974 [12 March 1973] 11803/73 Heading B2E [Also in Divisions D1 and D2] A conjugate fibre product (tow, roving, sliver, yarn or non-woven batt) is modified by applying a predetermined amount of particles uniformly to the product and heating in an open tensionless condition at a non- sticking temperature of 2-40 minutes, the non- sticking temperature lying below and to within at least 1‹C of the curve AB. This curve is formed by plotting the sticking temperature against the weight percent of particles on the product prior to heating. The treatment temperature is preferably in the area AXCA, the line CD being formed by plotting the treatment temperature against the weight percent of particles adsorbed for a given lower melting point component of the conjugate fibres. The particles may be applied by passage of the product through a fluidised bed of the particles, or by passage through a liquid in which the particles are dispersed. The conjugate fibres may be side-by-side composite fibres, sheath/core or multilobal. The fibres are preferably bicomponent, the lower melting point component having a melting point at least 10‹C, preferably at least 20‹C, below that of the other component. The particles may be luminous, electrically conductive e.g. carbon black, metal oxides, colourants, phosphorescent, water repellant or siliceous earths. The fibres may be crimped before or after the modifying treatment.
Patent GB-621624-A (GB)
Title: An improved bottle closure or cap
IPC: B65D41/12
Filed: 1946-04-17
Abstract: 621,624. Crown corks. GALBAS, J. G. April 17, 1946, No. 11892. Convention date, April 17, 1945. [Class 125(iii)] A crown cork has two bevelled faces A, E on the metal closure member of the cap bearing upon the outer and inner upper edges respectively of the rim of the bottle through an interposed cork disc G, and a flat portion H between the bevelled faces such that the cork disc makes tight annular contact with the neck of the bottle over an area extending from a circular line of contact below the upper level of the rim on its inner edge to a circular line of contact below the upper level of the rim on its outer edge. The bevel E is formed between a shallow depression D and the flat portion H and the cap is provided with vertical indentations B.
Patent GB-400290-A (GB)
Title: Improvements in and relating to electric regulating apparatus
IPC: G05F1/16
Filed: 1932-04-26
Abstract: 400,290. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Garman, G. W. ; 98, Reynolds Street, Scotia, New York, U.S.A.) April 26, 1932, No. 11985. Convention date, April 27, 1931. [Class 38 (iv).] The voltage or other electrical condition of an alternating current circuit 10 supplied from a circuit 11 through a transformer 12 and electric valves 1 .. 4 is regulated automatically by means of an impedance phase-shifting circuit 19 which excites the grids of the valves 1, 3 with potentials varying in phase in response to the condition to be regulated. As shown, the transformer 12 is provided with bucking and boosting taps 14, 15, each of which is connected to the circuit 10 through a pair of valves reversely connected in parallel. The impedance phase-shifting circuit 19 comprises an inductance 20 connected across the circuit, 10, a reactance 21, and a transformer 22, the secondary winding of which is adapted to be short circuited through a pair of electric valves 24, 25, preferably of the high-vacuum type. The grids of the valves 24, 25 are excited with the potential across a condenser 26, which is adapted to be charged from a battery 27, or discharged through a resistance 31 in accordance with the position occupied by the contact arm of a voltmeter 30 connected across the circuit 10. During the initial portion of each half cycle, current is transferred from the circuit 11 to the circuit 10 through the bucking tap 14, the load current being transferred to the boosting tap 15 at a period in each half cycle determined by the phase of the potentials applied to the grids of valves 1, 3, which in turn is controlled by the phase-shifting circuit 19. Specification 400,294 is referred to.
Patent GB-817665-A (GB)
Title: Improvements in creel bobbin holders for spinning or preparing machines
Inventor: NOGUERA JOSEPH
IPC: D01H1/18
Filed: 1957-04-12
Abstract: 817,665. Supporting bobbins on textile spinning &c. machines. CASABLANCAS HIGH DRAFT CO. Ltd. April 12, 1957, No. 12044/57. Class 120(2) In a bobbin-holder of the rotary suspension type described in Specification 575,743 in which a collar 20 slides on a body 19 to abut the bobbin-core under the influence of a spring 23, and a catch 12 is rotatable into or out of a position in which it engages the core when the collar is moved along the body against the pressure of the spring, the catch is arranged to be rotated by means which include a resilient operating-member 16 positively connected to the collar so as to move with it in both axial directions along the body. The operating member is of U-form' with its upper end passed through a closed slot 17 in a key 18 with' its ends disposed in slots on the collar and held in place by a circlip 22 in recesses in the collar and the key. The key also has recesses 18b to accommodate the ends of the spring. The body is in two parts secured together by a rivet 10 and a circlip 7 locating-pins and corresponding apertures 5 being provided.
Patent GB-855469-A (GB)
Title: Gas turbine engine afterburner
IPC: F02C9/26
Filed: 1959-04-09
Abstract: 855,469. Supplying liquid fuel to burners. GENERAL MOTORS CORPORATION. April 9, 1959 [April 9, 1958], No. 12102/59. Class 75(1). Fuel is delivered to a gas turbine reheater by perforated radial bars 23 with internal valve sleeves 46. The sleeves have slots 50 of varying length so that when the sleeves are rotated both the rate of flow and the distribution of fuel in the combustion chamber change. Fuel is fed from a manifold 24 to the interiors of the sleeves ; drains 54 are provided to remove fuel leaking through the valve bearings. The sleeves are rotated together by linkages on a ring 72.