baber/WOPTO huggingface dataset:
Patent GB-266008-A (GB)
Title: Improvements in picture telegraphy, high speed facsimile telegraphy, and the like
IPC: H04N1/36
Filed: 1927-02-14
Abstract: 266,008. Telefunken Ges. f³r Drahtlose Telegraphie. Feb. 15, 1926, [Convention date]. Copying-telegraphs; synchronous movements.- Portions of the drum or other picture carrier not occupied by the picture or signals are utilized for transmission of an auxiliary frequency for use in the regulation of synchronism without stopping the transmitter or receiver. The transmitting and receiving drums 1, 2 are driven through gearing 15, 16 from motors 11, 12 under the control of La Cour wheels 13, 14 respectively. The picture on the drum 1 is explored by the movement, parallel to the axis of the drum, of a beamof light from a source 5 and lens 4 passing through the back of a light-sensitive cell 3, and reflected back on to the cell. The varying potential thus produced across a resistance 21 is amplified and transmitted to the receiving station where, after further amplification, it is applied to a Kerr cell 6 to control the intensity of the' light from a source 10 incident on the sensitive surface on 'the drum 2. The space between the edges of the picture on the drum 1 is provided with means, such as equally-spaced lines, for producing current fluctuations of predetermined frequency in the circuit of the cell 3. These fluctuations produce corresponding fluctuations in the intensity of the beam incident on the drum 2 and are utilized in conjunction with a stroboscopic disc 8, rotated in the path of the beam through gearing from the drum 2, to indicate lack of synchronism. Movement parallel to the axis of the drum 2 is imparted to the beam and to the disc 8. The La Cour wheel 14 is brought into synchronism with the wheel 13 by manual adjustment of the condenser 26 in the circuit of a valve oscillator 25 which supplies the magnet of the wheel 14 through an amplifier 27, a telephonic-microphonic relay 30, and an amplifier 28. Alternatively, the auxiliary frequency may be produced by non-optical, means such as a switching device actuated by the drum 1. The auxiliary frequency may itself, be used to control the motors 11 and 12. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an automatic adjustment of the condenser 26. This subjectmatter does not appear in the Specification as accepted.
Patent GB-437944-A (GB)
Title: Improvements in or relating to crepe threads and fabrics containing artificial filaments
IPC: D02G3/30
Filed: 1934-02-08
Abstract: Crape threads are formed by subjecting yarns having a basis of cellulose ester of high viscosity to a saponification treatment and subsequently imparting to the yarns a high degree of twist; the viscosity is at least 30 as measured by comparing the viscosity of a 6 per cent solution of cellulose acetate in acetone with that of glycerine taken as a standard of 100.  The yarns may contain cellulose esters such as are described in Specification 207,562, [Class 2 (ii)], and the saponification, which may be effected as described in Specification 402,105, may be complete or only partial and, when partial, may be superficial; the saponification may also be effected in the manner described in Specifications 316,521 and 318,468, [both in Class 2 (ii)].
Patent GB-524797-A (GB)
Title: Improvements in devices for mechanically connecting a flexible shaft to a rigid shaft
IPC: F16C1/08
Filed: 1939-02-08
Abstract: 524,797. Flexible shafts. ETABLISSMENTS E. JAEGER. Feb. 8, 1939, No. 4222. Convention date, Feb. 19, 1938. [Class 80 (ii)] A flexible shaft 4 is flattened at or near its end to form flats 5, 5 adapted to engage diametrical slots 3, 3 in a driving or driven member 1 which is provided with an axial socket to receive the said shaft.
Patent GB-493694-A (GB)
Title: Chargeable lead-cadmium cell with acid electrolyte
IPC: H01M10/20
Filed: 1937-02-12
Abstract: 493,694. Batteries. BORNEMISZA, S., BARON VON THYSSEN-. Feb. 12, 1937, Nos. 4227, 4228, 4229, and 4231. Convention dates, Feb. 12, 1936, June 27, 1936, Aug. 24, 1936, and Oct. 13, 1936. [Class 53] In a process for charging an accumulator having a sulphuric acid electrolyte and in which the active materials consist of lead and cadmium, current is passed through the accumulator till about À06 gram of cadmium has been deposited on each square centimetre of negative electrode which may consist of carbon, cadmium or lead or of the accumulator container. The cadmium may be introduced into the accumulator by employing an electrolyte of cadmium sulphate or by coating the negative electrode with cadmium and using the accumulator as a primary cell whereby the cadmium is dipssolved in the electrolyte. A layer of oil may be placed on the electrolyte during the charging process. The Specification as open to inspection under Sect. 91 shows in Fig. 1 (Cancelled) an accumulator comprising a vessel a of sheet cadmium containing an electrode b of lead superoxide and a porous filling c saturated with concentrated sulphuric acid. The upper rim of the vessel is protected by lacquer x. A modification in which the electrodes are in the form of plates is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-787751-A (GB)
Title: Improvements in and relating to elastic fluid turbine plant
Inventor: COATS ROBERT
IPC: F01D15/04
Filed: 1955-02-14
Abstract: 787,751. Turbines. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Feb. 14, 1956 [Feb. 14, 1955], No. 4281/55. Class 110 (3). An emergency turbine for providing emergency power in the event of breakdown of a main turbine comprises a velocity compounded impulse wheel having a pinion which is capable of being meshed with a main driving gear-wheel and a casing with an outlet which is permanently connected to or capable of being connected to the main turbine condenser. The emergency turbine a comprises a velocity compounded wheel h having blades i and j for forward and reverse running respectively under control of a piston valve k adjacent the steam inlet m. The steam outlet n is connected through a pipe (not shown) to the main turbine condenser. The wheel h is coupled to a shaft p carrying a pinion q. When it is desired to put the emergency turbine into operation, a section o of the main gear-case s is removed and the pinion q brought into mesh with the main gearwheel d. The emergency turbine casing is attached to the face r of the main gear case s and then the cover o is replaced. The blades i, j may be integral with one another.
Patent GB-676325-A (GB)
Title: Extruding devices for thermoplastic materials and the like
IPC: B29C48/03
Filed: 1950-02-20
Abstract: 676,325. Screw conveyers. LAUBAREDE, L. M. H. K. DE. Feb. 20, 1950. [Feb. 19, 1949] No. 4304/50. Class 78 (i). [Also in Group V] In a screw conveyer or impeller device one or more screws 2, 3 are mounted for rotation in a casing 1 with minimum clearance and the thread of each is interrupted by notches 8, 9 in a portion of its length following the thread turn near the output end of the screw. The notches may be disposed along a helical axis, or may be staggered or may be in a straight line, and the number of notches per screw thread may be variable. The teeth formed by the interruptions may be chamfered at 10. In the preferred embodiment shown two opposite handed screws have their threads in mesh and turn in opposite directions.
Patent GB-1507581-A (GB)
Title: Process for continuous manufacture of methyl methacrylate polymer sheet
IPC: B29C39/16
Filed: 1976-02-04
Abstract: 1507581 Separating cast sheet from opposed endless moulding belts MITSUBISHI RAYON CO Ltd 4 Feb 1976 [19 Feb 1975] 04322/76 Heading B5A A homo-polymer, or co-polymer, comprising at least 90% by weight of methyl methacrylate, is continuously polymerized from monomer and simultaneously cast into a sheet, within a moving space defined between endless moving belts 1, 1<SP>1</SP>, and lateral endless sealing gaskets 7 which move with the belts, and surface scratches on the sheet arising from differences in thermal expansion between the sheet and the belts at the separation of the sheet from the belts at the downstream end of the space, are minimized by blowing a gas which is inert to the polymer, e.g. air or nitrogen, in an upstream direction towards the zone of separation of the sheet from at least one of the belts. The air may be blown from a plurality of nozzles 43, 43<SP>1</SP>, which may be spaced across the width of the space, as in Figs. 2 and 3 (not shown), where the zones of separation from the belts are each at the same downstream location, or may be blown from a nozzle 43, 43<SP>1</SP> at each edge of the space, Figs. 4 and 5, where the zone of separation 14 from one belt 1 is upstream of the other. The air is blown at a temperature of 0‹ to 60‹ C., and the temperature of the sheet is 80‹ to 110‹ C., and separation of the sheet and its subsequent warpage due to moisture adsorption, may be minimized by incorporation into the polymer being polymerized, of water to 1À5% of the weight of the polymer. Polymerization is effected by heating of the belts through successive heating zones comprising hot water sprays and infra-red heaters or a hot air oven, which respectively raise the temperature of the constituents to that of polymerization, e.g. using water at 100‹ C. or less, and to a temperature reducing residual monomer e.g. higher than 100‹ C. The heating zones are followed by a sequential pair of cooling zones, e.g. comprising air blown over the belts in the upstream direction.
Patent GB-625760-A (GB)
Title: Improvements in method and apparatus for making a loop equipped sanitary napkin
IPC: A61F13/15
Filed: 1947-02-14
Abstract: 625,760. Catamenial appliances. BURGESS, A. E. (International Cellucotton Products Co.). Feb. 14,1947, No. 4329. [Class 81 (ii) In a method and apparatus for manufacturing sanitary napkins having an absorbent pad body enclosed by a pervious wrapper with end portions extending beyond the pad body and a loop attachment sewn to at least one of such extending end portions the napkins are propelled transversely of their length with wrapper end portions projecting beyond the absorbent pad bodies a continuous length of tubular tape strip is fed into position extending transversely of the wrapper end portions and stitched thereto and subsequently severing the strip intermediate of the napkins to provide the loops. An absorbent pad 1 is wrapped transversely in a gauze covering or wrapper 2 having extending end portions 3 which are gathered and to which tubular lengths 5 of knitted yarn are applied with their lengths transversely of the ends 3 and stitched by a row of stitching 6. The length of tubular knitted fabric is then stretched and rolled so as to form a cord-like loop. Fig. 4 shows an apparatus for applying the loops. A series of trays 7 are carried by a conveyer chain 8, the trays being each of such dimensions as to accommodate a napkin with its gathered ends 3 projecting through slots 12. These gathered ends are adapted to traverse tables 13 and a roll 15 of knitted tubular fabric is arranged above each table and together with a guide roller 17, is driven at the required speed to feed the loop material to the ends 3 to which the material is stitched by a stitching arrangement 19. The trays then carry the stitched napkins through a severing device whereby the length of knitted fabric is severed intermediately of the ends 3. This severing device comprises a fixed knife 21 and a rotary one 20, the ends 3 with the stitched loop lengths 5 being guided by a guide 22 which normally prevents contact of the ends 3 with the knife 21. As the rotary knife 20 approaches the fixed knife 21 the guide 22 is depressed by a portion of the knife 20 engaging the cam surface 23 of the guide and the parts of the loop material intermediate of the ends 3 are depressed on to the knife 21 and severed by coaction therewith of the knife 20. The napkins with the stitched portions 5 are then delivered to a belt 25.
Patent GB-101250-A (GB)
Title: Improvements in Holders for Incandescent Electric Lamps.
Inventor: SALT JOHN
IPC: H01R33/46
Filed: 1916-03-28
Abstract: 101,250. Salt, J. March 28, 1916 Globe and shade holders.-The globe or shade is secured between an integral collar m on a porcelain or like electric lamp holder and an india-rubber or like ring p inserted in a groove o in the holder.
Patent GB-219350-A (GB)
Title: Improvements in and in the manufacture of protectors for screw-threaded pipes
IPC: B65D59/06
Filed: 1923-02-17
Abstract: 219,350. Roberts, A., and Mather & Platt, Ltd. Feb. 17, 1923. Packing screw-threaded pipes.-A protector for the ends of externally screwthreaded pipes d comprises an internally - threaded body a having an inwardly projecting flange or lip b. The part a may be cylindrical or slightly coned. The protectors may be made from short lengths of scrap piping by expanding them in dies or under a hammer to form the cylindrical or slightly conical part and by closing one end of the ring and screw-threading internally. Alternatively, the piping may be drawn specially for the purpose. Reference has been directed by the Comptroller to Specification 9123/14, [Class 99 (i), Pipes and tubes, Joints &c. for].
Patent GB-752463-A (GB)
Title: A signal device for indicating a predetermined expansion of dough being heated
IPC: G01F23/32
Filed: 1954-02-17
Abstract: 752,463. Dough expansion indicating device. ABRAHAM, H. J. Feb. 9, 1955 [Feb. 17, 1954], No. 4663/54. Class 28(1). [Also in Group XXXVII] A signal device for indicating when dough has expanded to a predetermined extent comprises a mounting element, adapted to be supported on a dough tin or the like, carrying a floating member which can be raised by the dough, as it expands, until electric contacts associated with the floating member and mounting element complete an electric circuit to operate an audible or visible indicating device. A metal plate 1 rests on opposite walls 2 of a tin and has, at its ends, downturned ears 3, 5 to engage the walls 2, ear 5 being part of an adjustable plate 4. A metal contact plate 9 is secured to the free end of a plastic floating plate 8 hinged to the underside of plate 1. At the centre of plate 8 is a pin 15 extending through plate 1 and having a head 16 which may be engaged by a latch 17 to hold the plate 8 away from plate 1. An electric circuit including plate 1, plate 9 and wires 10, 11 is completed, when plate 9 engages plate 1, to set off the audible or visible alarm signal.
Patent GB-1048324-A (GB)
Title: Concentration of thixotropic compositions
IPC: A23L5/30
Filed: 1964-02-04
Abstract: Thixotropic compositions are concentrated by evaporation of solvent after preliminary treatment of the composition-to-be-concentrated with ultrasonic waves in order to reduce its viscosity.  In an example, orange juice concentrate with a soluble solids content of 60 DEG  Brix is subjected for 10 minutes to ultrasonic waves at a frequency of 20,000 cycles per second, and is then concentrated under reduced pressure to 63 DEG  Brix.  The material is then given another 10 minutes of ultrasonic treatment, and further concentrated to 70 DEG  Brix.  The viscosity of the product is only 150% of that of the original 60 DEG  Brix concentrate.  The composition to be concentrated may be continuously circulated by a pump through an apparatus comprising an ultrasonic treatment unit, a heater, and an evaporator.
Patent GB-175656-A (GB)
Title: Improvements in combined antifriction and friction bearings
IPC: B61F15/06
Filed: 1921-01-10
Abstract: 175,656. Florell, Y. March 8, 1919, [Convention date]. Ball, roller, and cylindrical journal bearings.- In a combined friction and antifriction bearing, a friction bearing sleeve is mounted loosely on the shaft and is provided on one side with a racering and on the other side with a Babbitt-metal lining. In a wagon axle-box, a shaft 1 carries a sleeve bearing 3 with Babbitt-metal lining 2. The sleeve 3, which is divided axially and abuts against a shoulder on the shaft, has a conical outer surface carrying the inner race-ring of the antifriction bearing 4, which is clamped in position by a sleeve 5 and screw 6. The conical surface may be replaced by a shoulder. Between the casing 7 and the outer race-ring a layer 10 of a fusible material is inserted, and packing 8, 9 is arranged between the sides 13, 14 of the casing and the friction bearing. The sleeve 3 has chambers 11, 12 for lubricant.
Patent GB-1382800-A (GB)
Title: Method of injection moulding synthetic resin
IPC: B29C45/72
Filed: 1972-02-01
Abstract: 1382800 Injection moulding S TSUTSUMI 1 Feb 1972 [17 Feb 1971] 4766/72 Heading B5A Synthetic resin is permitted to cool and solidify in the gate 8 of an injection mould 5, 6 after each injection and the sprue so formed is not removed as waste but is remelted immediately before the next injection by a heater 11 and is carried into the mould by freshly injected material, thus saving material and also reducing distortion of the article moulded and reducing the injection pressure required by preventing back flow from the mould. The leads 27 of the heater 11 are connected to an electric supply via a timing circuit and are embedded in baked clay in the heater easing 21. The leads extend from the casing to form a tip 13 lying within the gate 8. In addition a heating coil 26 wound on a glass tube 24 is operated continuously to keep the material in runners 10 fluid. The nozzle 9 of an injection cylinder 2 is connected by runners 10 to several gates 8 of separate mould cavities (Fig. 5, not shown), or a single cavity, as shown. Each gate 8 has an independently controlled heater 11 to permit selective use of the gates 8 and the runners 10 have linings in the region of the heaters 11 which linings may have an insulating air gap (not shown) between their tapered ends and the body of the mould 6. The mould halves heating and cooling fluid passageways 16 and may produce large mouldings, e.g. car bodies, telephone boxes, from polyamide, polycarbonate, polyacetal or acrylic resin.
Patent GB-542830-A (GB)
Title: Improvements in and relating to lubricating systems
IPC: F16N7/40
Filed: 1941-04-10
Abstract: 542,830. Fluid-pressure servomotor control systems. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). April 10, 1941, No. 4769. [Class 135] [Also in Groups XXXIV and XXVI] An exhaust-gas turbine-driven supercharger has a lubricating system for the shaft bearings in which a scavenging pump 51 which forces oil from the sump 50 to the tank 39 has a greater capacity than the feed pump 36 which forces oil from the tank 39 to the bearings, both pumps being driven from the shaft 15. Oil from the feed pump passes through conduits 41, 42 to the bearings 16, 17 and thence to pockets 32 ... 35. Pockets 34, 35 lead to annular pockets 54, 55 which with pockets 32, 33 drain to the sump 50. The discharge pressure of feed pump 36 is in excess of that required for lubrication and a relief valve 45 in the outlet 26 connects to byepass 46 and inlet 37. The outlet 26 also connects to a chamber 27 in a servomotor 22 with piston 23 actuating the control valve 21 of the turbine 18 which drives the shaft 15 and the impeller 14. The outlet scroll 12 is connected to chamber 30a which has a bellows 30 coupled to a valve 28 connecting outlet 26 and chamber 27 to discharge 29. A drop in the pressure of the air discharge causes an expansion of bellows 30 to close valve 28 so that pressure in chamber 27 increases and valve 21 is opened to increase the flow of gas to the turbine. The casing 59 for bearing 17 has grooves 60, 61 connected to the scroll 12 to prevent leakage of oil along the shaft 15 from pockets 34, 35. Pockets 32, 33 may connect into chamber 64 surrounding the gearing 63 for pumps 36, 51.
Patent GB-913654-A (GB)
Title: Improvements in or relating to pressurizers
IPC: G21C1/09
Filed: 1959-02-11
Abstract: 913,654. Nuclear reactors. BABCOCK & WILCOX CO. Feb. 11, 1959 [Feb. 14, 1958], No. 4772/59. Drawings to Specification. Class 39 (4). In a light water-cooled nuclear reactor the coolant system is maintained at a predetermined pressure. Connected to the coolant system is a pressure vessel which may supply water to, or extract water from, the system. The vessel internal vapour pressure is automatically controlled by water level, pressure and temperature-sensing means. The coolant is circulated through the reactor, a heat-exchanger and a boiler by external pumps. Water passes into the pressure vessel from the reactor cooling water inlet pipe, through a spray nozzle controller by a valve adjusted in response to internal vapour pressure. The level-sensing device within the pressure vessel controls a valve admitting water into the coolant system from the vessel. The pressure within the pressure vessel is maintained above the saturation pressure of the coolant system by electric heaters in the base of the vessel adjusted by the pressure-sensing device controlling the flow to the nozzle. Specifications 775,156, 913,653, 913,655 and U.S.A. Specifications re-issue 712,512 and 721,404 are referred to.
Patent GB-923015-A (GB)
Title: Gaskets for pipe joints
Inventor: PHILLIPS WILLIAM FREDERICK
IPC: F16L23/22
Filed: 1961-02-09
Abstract: 923,015. Joint-making packing. ALFRED ALLEN & SON Ltd. Feb. 1, 1962 [Feb. 9, 1961], No. 4807/61. Class 122 (3). [Also in Group XXVIII] A rubber gasket 10 for a flanged pipe joint tightened by bolts 13 is held in position during assembly of the joint by a flange 15 on the gasket which encircles and grips a peripheral portion 16 of one of the pipe flanges 11. The flange 15 has an inturned rim 17 that overlaps the portion 16. The holes 14 in the gasket for the bolts 13 are circumferentially elongated.
Patent GB-348578-A (GB)
Title: Improvements relating to braking apparatus for railway and other vehicles
IPC: B60T13/68
Filed: 1930-02-13
Abstract: 348,578. Fluid-pressure and electric brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO.. Ltd., 82, York Road, King's Cross, London.-(Assignees of Thomas, T. H.; 219, Lincoln Avenue, Edgewood, Pennsylvania, U.S.A.) Feb. 13, 1930, No. 4875. Convention date, Feb. 14, 1929. [Class 103 (i).] The fluid-pressure and electro-dynamic brakes of a vehicle are inter-connected by means of a valve controlled by the electric braking current whereby as this current falls off in consequence of slowing down of the vehicle, fluid pressure is established in the brake cylinder inversely proportional to the strength of the current. The valve device comprises a winding 6 surrounding a polepiece 7, and an armature 8, which with a diaphragm 10 attached to the casing and to a part 9 of the armature forms a chamber 11 open at 12 to the atmosphere. A pair of connected valves 17, 21 control respectively communication of a chamber 13 connected with the brake cylinder 15, to the chamber 11 and to a chamber 26 connected to the drivers valve 28 of the fluid-pressure brake. A spring 30 acting through a rod 29 on the armature 8 tends to close and open respectively the valves 17, 21 so that when the winding is deenergized the driver may by the valve 28 supply and exhaust the brake cylinder 15 by way of the valve 21. For electrodynamic braking the motor 1 runs as a generator and the switch 4 then connects the valve winding 6 in the circuit and the drivers valve 28 is put into application position. The regenerative current is at first generally sufficient to hold the armature raised against the action of the spring 30 so that the valves 17, 21 are respectively open and closed and the brake cylinder is thus connected to the exhaust port 12. As the current falls with the slowing of the vehicle, the armature moves downwards to close the valve 17 and open the valve 21 to supply the brake cylinder until the pressure therein acting on the diaphragm 10 lifts the armature sufficiently to re-close the valve 21. The pressure established in the cylinder is thus inversely proportional to and compensates for the falling off of the electrodynamic braking effect.