baber/WOPTO huggingface dataset:
Patent GB-1261695-A (GB)
Title: Crystalline plicatin
IPC: C07D307/92
Filed: 1970-05-21
Abstract: 1,261,695. Crystalline plicatin. ITT. INDUSTRIES Inc. 21 May, 1970 [27 May, 1969], No. 24654/70. Heading C2C. Colourless crystals of pure plicatin having the structural formula which are stable when exposed to light, are sparingly soluble in water and melt at 217- 218 C., are produced by dissolving crystalline plicatic acid tetrahydrate in an excess of an inert neutral solvent (e.g. a nitroalkane of 1-4 C atoms), refluxing the resulting solution under anhydrous conditions, removing the water of lactonization, and then rapidly cooling the solution to crystallize the product. For the refluxing an acid catalyst, e.g. p-toluene sulphonic acid may be incorporated into the solution.
Patent GB-677396-A (GB)
Title: Dice for playing a game
IPC: A63F3/00
Filed: 1950-10-10
Abstract: 677,396. Dice. WRIGHT, S. E. C. Oct. 10, 1950, No. 24729/50. Class 132 (ii). A set of dice for simulating a card game comprises two distinguished groups each of four dice, one group being used for indicating a score to be attained and having markings of numbers so selected that the sum of the markings on the dice when cast can be from "nought" to " seven," and the other group being used for indicating the score attained, each dice having one indication representing " seven " and its other faces bearing numbers selected from the group " one " to " six."
Patent GB-1102236-A (GB)
Title: Pelletizing and sizing drum
IPC: B01J2/12
Filed: 1965-06-11
Abstract: 1,102,236. Rotary drum pelletizer. H. T. STIRLING. 11 June, 1965, No. 24828/65. Heading B5A. Pellets are produced from pulverulent material in a rotated assembly comprising a frusto conical drum 10 which is rotated by a variable speed motor 21 about the axis of the cone (at 15 to 35 degrees to the horizontal) and which carries, towards the narrow open end thereof, helically wound screens 22, 32, a lifter cone 24 and a drying screen 34. Fines and recirculated material are deposited into the open end of the drum 10 from a conveyer 16, provided with crushing rolls 17 for oversize material, and the material rolls and cascades therein to form pellets which rise upwardly along the wall 14 to the open end of the drum 10 and the formation whereof may be assisted by water sprays positioned within the drum (not shown); undersize material discharges through screens 22 and 32 into lifter cone 24 and, together with oversize material discharged from screen 22, is raised by lifters 28 and dropped through shoot 30 on to conveyer 16 for recycling; correctly sized pellets are retained on screen 32 until discharged on to drying screen 34, for drying by hot air from blower 38, from whence the pellets roll out on to conveyer 36.
Patent GB-1023172-A (GB)
Title: Improvements relating to vibratory plate material-compactors
Inventor: PULLIN CYRIL GEORGE
IPC: E02D3/074
Filed: 1962-06-28
Abstract: 1,023,172. Vibrating compactors. WINGET Ltd. June 6, 1963 [June 28, 1962], No. 24858/62. Heading E1G. A vibrating compactor for use on narrow surfaces has a circular or regular polygonal sole plate 4. An engine 1 on a resiliently mounted plate 2 drives an eccentric shaft 5 through U-belts 11. A handle 12 pivotable about bearers 13 to a vertical position allows turning of the vibrator in a confined space.
Patent GB-628694-A (GB)
Title: Improvements in and relating to shaft closings for lifts
IPC: B66B13/04
Filed: 1947-09-12
Abstract: 628,694. Doors. STIGLER LIFTEN C. V. Sept. 12, 1947, No. 25087. Convention date, June 19. Addition to 627,211. [Class 20(iii)] [Also in Group XXX] The abutment stop 1 provided, according to the parent Specification, at the shaft opening of a lift for holding the landing doors 2, 3 closed, has the slots 21, 21<SP>1</SP>, by which it engages projections 4, 41 on the doors, formed with inclined surfaces 23, 23<SP>1</SP> so that the doors can be opened simply by pulling them. During the initial opening movement the projection 4 travels along the incline 23 and the door moves laterally swinging about a hinge pivot 6. When the projection 4 clears the slot 21 the door is free to swing open about its main hinge pivot 5. The projections 4, 41 are preferably rollers.
Patent GB-425951-A (GB)
Title: Improvements in and relating to mechanism for spreading out or opening tobacco leaves, particularly for the removal of the stems therefrom
IPC: A24B5/12
Filed: 1933-12-02
Abstract: 425,951. Tobacco-stemming machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) Dec. 2, 1933, No. 25167/34. Divided out of 425,187. [Class 130] In mechanism for spreading out tobacco leaves, particularly for the removal of the stems, the leaves are gripped by the butt ends only, to pull them through devices which spread the leaf webs laterally from the stems towards the edges, and means are provided for preventing lateral displacement of the trailing leaves or their tips from a central position while being pulled through the spreading devices. The machine is similar to that described in Specification 411,111. The leaves to be opened are placed on a table 13, over which they are fed by belts 12 and a chain 15. At the forward end of the table, the butt end of each leaf is lifted by a cam-actuated block 49, and engaged by one of the grippers 46 carried by cross-bars extending between a pair of endless chains 31 travelling on sprockets 30, 41. The grippers carry the leaves butt end foremost, through the suction chambers 51, 60 of the leaf-opening mechanism, which are connected to suction pipes 53. Within the chambers 51, the leaves pass between pairs of revolving corrugated wheels which assist in the opening or spreading. On leaving the chambers 51, the stem or central portion of the leaf is pressed on the pins of a carded belt 59, and as the tip of a leaf passes from beneath the roller 58, the suction in the chamber 60 is cut off by valves 61 in the pipes 53, to prevent displacement of the tip from central position. The valves 61 are actuated by a rod 62 connected to a lever 63 actuated by a cam 65 on a shaft 35. The roller 58 is carried by an arm 255 on a shaft 256 having an arm 258 connected by a link 260 to a lever 261 actuated by a cam on the shaft 26, the roller 58 being lifted periodically to allow the grippers 46 to pass. The opened leaves emerging from the chambers 60 pass to leaf-conveying mechanism comprising an endless perforated belt 67 on each side of the path of the leaf stems. The belts 67 travel over slotted or perforated suction chambers 68 connected to suction pipes 69.
Patent GB-376545-A (GB)
Title: Improvements in and relating to devices for the assembly or grouping of discharge tubes in luminous signs
IPC: G09F13/26
Filed: 1931-09-09
Abstract: 376,545. Electric discharge tube signs. BARLOW, N. S., 16, Bennetts Hill, Birmingham.-(Heller, R.; 3, Karlplatz, Vienna.) Sept. 9, 1931, No. 25262. [Class 3 (ii).] In electric discharge tube signs of the interchangeable type, wherein the individual letters are connected in parallel, the necessity for compensating resistances is overcome by providing each tube with one internal electrode and a metallic coating at its rear side which serves as an outer electrode. Fig. 2 shows an arrangement in which the letters 12 provided with glass protuberances 13 are slidably arranged in a casing 1 and are held between two conducting rails 4, 5, the upper of which is pressed on to caps connected to the inner electrodes 141 by springs 3, while the lower makes contact with the outer metallic coatings 14, which are extended on to the protuberances 13. A casing containing the transformer is adapted to engage the plugs 10. In a modification, Fig. 3 each letter is provided with an individual spring-pressed contact 17 for its inner electrode, while the coating 14 is replaced by a resilient metal clamp 19 by which the tube is held. In a simpler form in which the letters may be arranged either horizontally or vertically, each letter is mounted in a shoe which has side contacts connected with the inner and outer electrodes and is adapted to slide in a channel member the inner faces of which carry conducting strips which engage the contacts. The inner electrodes preferably comprise small spirals of wire.
Patent GB-881139-A (GB)
Title: Improvements relating to travelling cases
Inventor: HANAVER HANS
IPC: A45C5/02
Filed: 1956-08-17
Abstract: 881,139. Travelling cases. WOOD & SON Ltd. W. Nov. 15, 1957 [Aug. 17, 1956], No. 25265/56. Class 18. A travelling case with body and lid portions has one or each of the portions formed with an integral blocked or moulded flange entending around the whole of its periphery and secured to adjacent wall panels of the portion. In Fig. 1, the fibreboard sizes 32, 33 of the case are formed with blocked flanges 34 secured as by stitching or welding to the body part 31 which comprises a strip of fibreboard bent to U-shape to form the front, bottom and rear walls of the case. An embushment strip 37 is secured within the flange 34 to project laterally beyond its edge and is fixed to the body part 31, its upper part forming an abutment for the edge 35 of the hinged lid 36. The parts may be joined by an H-section metal or plastics strip, the flange 34 and the edges of the body portion being inserted into the opposing channels of the strip. The lid is formed from a single blank with moulded flange 38 at the front and rear which may be reinforced by wooden strips. The parts may be formed of material impregnated with synthetic resin cured during the blocking operation, and may be covered and lined with fabric &c. In a second embodiment, Fig. 5, the body 50 and lid 41 of the case are each formed with integral moulded flanges secured to adjacent wall panels. The body comprises a blank 51 formed with a peripheral flange 52 secured within the lower edge of a rectangular frame 53 over which a plastic strip 54 is slipped. Similarly the lid comprises a blank 41 with flange 42 secured to a frame 44, and is hinged to the body 50 and provided with the usual locks &c.
Patent GB-923544-A (GB)
Title: A new antibiotic-glumamycin
IPC: C07K9/00
Filed: 1960-07-21
Abstract: Relates to a new antibiotic glumamycin which is a colourless crystalline powder decomposing at 230 DEG C., having a specific rotation of a 20D = +8 DEG  (c = 2%, in ethanol), showing maximum infra-red absorption at wavelengths of 3.0, 3.4, 5.7, 6.0, 6.5, 6.9, 7.2 and 8.2m , having a molecular formula C58H99O20N13, and giving by hydrolysis one mole of 3-iso-tridecenoic acid, four moles of the sum of L-aspartic acid and L-threo-b -methylaspartic acid, two moles each of glycine and D-erythro a ,b -diaminobutyric acid and one mole each of L-valine, L-proline and D-pipecolic acid.  Glumamycin may be produced by cultivating Streptomyces zaomyceticus A.T.C.C. 13876 or a glumamycinproducing natural or induced mutant or variant thereof, in an aqueous medium containing nutrient, under aerobic conditions until antibacterial activity is imparted to the resultant broth, and then recovering the so-produced glumamycin from the broth, e.g. by solvent extraction, adsorption chromatography, partition chromatography, countercurrent distribution or salting out.
Patent GB-1378950-A (GB)
Title: Motor vehicle disc brake
IPC: F16D65/847
Filed: 1972-06-01
Abstract: 1378950 Disc brakes FORD MOTOR CO Ltd 1 June 1972 [2 July 1971] 25587/72 Heading F2E The subject matter is substantially identical with that of Specification 1,330,267 with the exception that no key member is provided. The intersections of guide support surfaces 110, 112 and 108, 112 are each chamfered at 45 degrees and the bowed sides 113, 114 of the clip 44 engage the chamfered surfaces. The surfaces of caliper C adjacent the groove 100 are also chamfered at 45 degrees to the surfaces 102, 104 and these chamfered surfaces 128, 130 engage the clip 44. Semicylindrical portions 116, 118 of the clip engage the end wall 106 of groove 100.
Patent GB-637473-A (GB)
Title: Improvements in and relating to carrier telegraph systems
IPC: H04L27/14
Filed: 1947-09-23
Abstract: 637,473. Frequency and phase modulation. STANDARD TELEPHONES & CABLES, Ltd., and HARGREAVES, T. F. S. Sept. 23, 1947, No. 25817. [Class 40 (v)] [Also in Group XL (b)] In a carrier telegraph system of the kind in which marks and spaces are transmitted by changing the frequency or phase of the carrier, distortion introduced, for example, by inserting a D.C. blocking condenser in the receiver circuit, is neutralized by combining with the main rectified signals a second set of signals bearing an opposed distortion. Fig. 2 shows a receiving circuit in which the received waves are applied to a limiter valve 1 having two anode circuits 3, 5 tuned respectively to the marking and spacing frequencies and coupled to full-wave rectifiers producing signals of opposite polarity across their load resistors 6, 7. These signals are applied through the series condenser 8 and across shunt resistor 10 to the grid of a valve 9 which is cut off when the grid is negative and conductive when the grid is positive. The relay 11 has two opposed windings, one in the anode circuit and the other carrying a steady direct current, so that positive and negative grid volts throw the armature to its respective contacts. Fig. 3 (a) shows the signal voltage across the resistors 6, 7, the zero line o indicating that the carrier waves have drifted from their correct values. Fig. 3 (b) shows the effect of inserting the network 8, 10 which removes the D.C. component, but distorts the signal voltage. The invention consists in inserting across a series condenser 18 the counter-distorting voltage shown in Fig. 3 (c), so that the voltage at the grid of the relay valve 9 has the correct form shown in Fig. 3 (d). To produce the voltage of Fig. 3 (c), current is fed, irrespective of frequency, from a coil 12 in the anode circuit of the valve 1 to two separate full-wave rectifiers 15, 16 of opposed polarity, with their load resistors connected across the condenser 18 in series with each other and with a resistor 17. The circuits of the rectifiers 15, 16 include bridge switches 13, 14 which are opened and closed in the rhythm of the signal by connecting them across the leads from the H.T. supply to the respective coils of the relay 11. As the time constant of the network 17, 18 is made equal to that of the network 8, 10, the voltage across the condenser 18 rises as the main signal voltage falls and vice versa. When signalling is effected by phase shift instead of frequency shift, the receiver discriminator gives an impulse at each shift, and these impulses are passed to an integrating circuit, the time constant of which has a distorting effect similar to that shown in Fig. 3 (b), and which may be neutralized in the manner described above.
Patent GB-923417-A (GB)
Title: Improvements in ventilating cushions and making same
Inventor: CRANE SAMUEL PEACE
IPC: B61D33/00
Filed: 1960-07-25
Abstract: 923,417. Laminates. ALPHA RESEARCH CORPORATION. July 25, 1960, No. 25829/60. Class 140. [Also in Group XIV] A ventilating cushion is formed by rows of coils 11 in a plane parallel to the face of the cushion being coated with an excess of a viscous or molten plastic such as polythene, and then being placed on a flat surface so that some of the excess plastic gravitates down the coils and solidifies forming a permanent substantially flat bearing surface. The coils may then be inverted and the process repeated. The size of the extensions formed by the excess depends on the depth to which the coils are immersed in the fluid and the extensions may be separate as at 21, Fig. 7, or may coalesce to form a sheet-like member 33, Fig. 10. The flat surface on which the plastic solidifies around the coils may be of paper, fibre, paper reinforced with glass fibres or fabric, and may have ridges or perforations to produce ventilation channels 38. The face of the cushion may embody wire mesh or may be formed from the flat surfaces of the extensions, e.g. of fabric or the surface on which the plastic solidifies.
Patent GB-834067-A (GB)
Title: Improved pile fabrics
IPC: D03D27/00
Filed: 1957-08-16
Abstract: 834,067. Pile fabrics. UNION CARBIDE CORPORATION. Aug. 16, 1957 [Aug. 20, 1956], No. 25853/57. Class 142(4) A pile fabric has fibres of acrylonitrile polymeric material in a substantially unoriented state with a surface covered with nodes ranging from 2 to 30 microns and having a high degree of opacity. The fibres may be ribbon-like or round in crosssection and between 3 and 27 denier. The fabric has good soil binding properties which, according to the Specification, are believed to be due to the optical geometry of the fibre surface and to the degree of opacity of the fibre. The fibres may comprise 40 parts by weight of acrylonitrile and 60 parts of vinyl chloride, or 70 parts of acrylonitrile 20 parts of vinyl chloride and 10 parts of vinylidene chloride, or 90 parts of acrylonitrile and 10 parts of acrylamide. An opacifying agent, which may be titanium dioxide, antimony oxide, zinc oxide or aluminium oxide may be added. The pile may consist of 100% nodular surfaced fibres or can be a blend of such fibres with other synthetic resin or natural fibres. The pile may be cut or loop or may be a tufted pile sized on the back with rubber or resin latex. The fibres are produced by extrusion of a solvent solution of the polymer into a coagulation bath containing an aqueous solvent mixture followed by extraction of the solvent from the fibre. The fibres may be drawn in a spinning or extraction bath up to about 400% in length prior to solvent removal but must not be stretched after solvent removal in order that they may remain substantially unoriented.
Patent GB-1048023-A (GB)
Title: Rotatable ball valve construction
IPC: F16K27/10
Filed: 1963-04-17
Abstract: 1,048,023. Valves. H. J. SHAFER. April 17, 1963 [May 2, 1962], No. 25899/66. Divided out of 1,048,022. Heading F2V. In a welded ball shut-off valve having ballseating surfaces, a fixed axis ball shut-off and flow ports leading to opposite sides of the ball, a ball-sealing assembly comprises an annular groove formed in each end of the ball shut-off opposing an adjacent seating surface and being undercut at its radially outer periphery, a resilient ring seal adapted to engage the adjacent seating surface and having a shoulder fitting the undercut portion of the annular groove, and retaining means for holding the ring seal on the ball shut-off, the ring seal and the retaining means being dimensioned so as to be insertable through a flow tube to operative position. The valve is the same as that described in Specifications 1,048,022 and 1,048,024.
Patent GB-406764-A (GB)
Title: Improvements in and relating to pipe couplings
IPC: F16L19/028
Filed: 1932-09-17
Abstract: 406,764. Pipe joints. BRITISH MANNESMANN TUBE CO., Ltd., and KAUFMANN, F., 67, Queen Victoria Street, London. Sept. 17, 1932, No. 25933. [Class 99 (i).] In a joint in which the pipe ends overlap, packing d is compressed around the spigot b and in the flared mouth c of the socket by the interengagement of screw-threaded collars e, f. A shoulder of the collar f engages the packing or a flange on the spigot formed by a buckled portion g. The spigot and the collar f may have interengaging curved surfaces to allow the alignment of the pipes to be adjusted.
Patent GB-984492-A (GB)
Title: Improvements in or relating to cans
IPC: B21D51/32
Filed: 1963-03-05
Abstract: 984,492. End closures for metal containers. CONTINENTAL CAN CO. Inc. March 5, 1963 [June 6, 1962], No. 25955/64. Divided out of 984,491. Heading B8D. The Specification relates to the metal closure described in Specification 984,491.
Patent GB-616152-A (GB)
Title: Improvements in or relating to internal-combustion engines of the turbine type
IPC: F02C3/045
Filed: 1946-08-29
Abstract: 616,152. Gas-turbine plant for jet-propulsion. COHEN, H. Aug. 29, 1946, No. 25990. [Classes 110 (i) and 110 (iii)] The air-compressor and turbine rotors are in one piece. The compressor draws in air through radial passages in the turbine stator blades and discharges it through radial passages in the turbine rotor blades. In the plant shown in Figs. 3 and 8, discs 23 carry pump impeller blades 24-27 and turbine blades 32. Air reaches the blades 27 by ports 7, the blades 24, by similar ports in the end wall 3 and the blades 25, 26 by ports 16 and passages 40 in the stator blades 37. Air passes from the impellers through passages 34 in the turbine rotor blades 32 to volute chambers 10, 11 and thence to a pre-heating coil 14 within the combustion chamber 15 and is discharged from the coil into the chamber. The products of combustion pass through nozzles 43 to the turbine blading and are discharged from the end chamber 17. The discharge may be axial into a propulsion jet formed with the end wall 3. In another plant, Fig. 10, air enters a first-stage impeller 70 through the space within the combustion chamber 15a, is driven by blades 72 through the passages 32b in the turbine rotor blades and is further impelled by blades 73 before reaching the volute chamber 11a. From this chamber the air passes inwardly through passages in the turbine stator blades to the eye of the second-stage impeller 71. It is then further compressed by means of the bladings 72 and passes through the blades of the second turbine rotor ring to the outer impeller blading 73. Thence it passes to the volute chamber 10a, to the pre-heating coil 14a and is discharged into the combustion chamber 15a. The housing of the bearing 5b is supported by radial plates 74 from the combustion chamber inner wall. In a third plant, the air, after passing through the impeller which is combined with the turbine rotor, is further compressed in one side of a double entry centrifugal compressor. Air from the atmosphere is compressed by the other side of the compressor and the two sides discharge into a common bladed diffuser.
Patent GB-157566-A (GB)
Title: Liquid fuel supply for motor vehicles
IPC: B60K15/06
Filed: 1919-10-24
Abstract: 157,566. Guy, S. S. Oct. 24, 1919. No Patent granted (Sealing fee not paid). Fuel containers.-In a fuel supply system in which provision is made to ensure a reserve supply by providing the fuel tank a with a reservesupply pipe d extending to the bottom thereof and with a shorter pipe c which is normally in use, a three-way valve b operated by a stem f being employed to control the delivery, the handle k of the valve b is arranged to project over the filler cap l when the pipe d is in use, so that the tank cannot be filled until the valve b is restored to normal position. In a gravity-feed system, the delivery pipe normally in use projects a suitable distance above the bottom of the tank.
Patent GB-720352-A (GB)
Title: Improvements in or relating to water cooling tower construction
Inventor: MART LEON THOMAS
IPC: F28F25/00
Filed: 1952-10-17
Abstract: 720,352. Water-cooling towers. MARLEY CO., Inc. Oct. 17, 1952, No. 26078/52. Class 64 (1). A tubular casing for housing the fan at the top of a water-cooling tower 50 is formed in laminated fashion of overlapping narrow, flexible, annular bands 20, the bands decreasing in diameter from the lower to the upper position and their lower edges being spaced in progressively increasing steps so as to provide a selfsupporting structure of downwardly flared formation. The flared portion merges into an upper portion 16 of cylindrical shape. The annular bands are preferably formed of redwood segments 24 arranged to break joint. Fig. 4 shows a spider frame formed of radial wooden bars 64 fitting in recesses 62 in a central hub 56 and each supporting an upright member 66, the members 66 together forming a template on which the annular bands can be built up.