baber/WOPTO huggingface dataset:
Patent GB-345550-A (GB)
Title: Improvements relating to operating mechanism for the variable speed gears of motor cycles
IPC: B62M25/04
Filed: 1930-05-07
Abstract: 345,550. Controlling variable-speed gearing. BURMAN&SONS, Ltd., Ryland Road, and BRIGGS, T. H., 5, Varna Road, Edgbaston, both in Birmingham. May 7,1930, No. 14013. [Class 80 (ii).] A gear-control spindle a of a motor-cycle is moved stepwise by a ratchet gear comprisingfourplates b,d,k, w side by side. Plate w is fixed and carries a pin v against which abut springs r carried by " spring plate k. Plate k is loose on spindle a and carries the pivot pin i of a double-acting pawl h adapted to engage two opposite sets of ratchet teeth c on plate b fast to spindle a. The pawl pivot pin i. projects freely through a slot j in lever plate d also loose on spindle a and adjustably bolted at f to lever e adapted for oscillation by hand or foot. Lever plate d carries a " control " pin m engaging a slot l in the pawl h and passing rearwardly between relatively-weak springs q in spring plate k. On control lever e being swung, plate d causes pin m to compress a spring q, so as to rock pawl h into engagement with ratchet plate b, and then to carry plate b and spindle a along. One of the stronger springs r is also compressed, and the movement continues until one of a pair of stops x carried by spring plate k abuts against fixed plate w. On release of lever e, the compressed springs return all the parts to their original position except spindle a and plate b. This speed-changing step may be repeated in the same direction, or undone by a swing of lever e in the opposite direction.
Patent GB-1299105-A (GB)
Title: Curing butadiene polymers
IPC: C08J5/24
Filed: 1970-03-23
Abstract: 1299105 Curing 1,2-polybutadienes FIRESTONE TIRE & RUBBER CO 23 March 1970 [24 April 1969] 14048/70 Heading C3P A curable composition comprises (a) 100 parts by weight of a butadiene polymer having a viscosity average molecular weight of 12,500 to 55,000 and a molecular weight distribution such that at least 50% of the polymer has a molecular weight of at least 10,000 and at least 95% of the polymer has a molecular weight of at least 2000 and at least 80% of the butadiene units being in the 1,2-configuration, and (b) a peroxy compound of formula wherein each R represents a C 1-20  alkyl, cycloalkyl, aryl, alkaryl or aralkyl radical in an amount equivalent to 0À5-8 parts by weight of dicumyl peroxide. The polymer can be a copolymer with, for example, styrene, and styrene and methyl naphthalene. The composition may contain fillers, bonding agents such as vinyl triacetoxy silane, lubricants such as calcium stearate, and polymerizable monomers. It is thought that the composition cures by polymerization of the vinyl group in the polymer.
Patent GB-1411493-A (GB)
Title: Excess voltage arresters
IPC: H01T1/22
Filed: 1973-03-23
Abstract: 1411493 Spark gaps M-O VALVE CO Ltd 21 March 1974 [23 March 1973] 14139/73 Heading H1D A spark gap arrester as described in Specification 1,021,782 has electrodes 10, 11 in a gasfilled housing comprising end caps 1, 2, insulating sleeves 4, 5 and a central conducting portion 3. The D.C. breakdown voltage across the gap 17 or 18 between either electrode 10 or 11 and the portion 3 is less than the breakdown voltage across any gap between a point on the surface of that electrode 10 or 11 and any conductive coating which may be produced on the inner surface of the adjacent insulating portion 4 or 5, and means are provided for restricting the cathode spot formed in operation on the inner end of either electrode 10 or 11 to a region adjacent the inner end of that electrode. The construction of the electrodes, the filling of the device with gas, and the connection of the arrester in an electrical circuit, and the dimensions and breakdown voltages, are as in Specification 1,411,492. The inner ends of electrodes 10, 11 are coated with electron emissive material, which anchors the cathode spot formed on either electrode, reducing, but not eliminating, sputtering on to the end faces 21, 22 of the sleeves 4, 5. Coatings so formed are connected to earth via central portion 3, but the gaps 17, 18 have breakdown voltages below that between the coatings and the portions 13b or 15b of the electrodes 10, 11. The movement of cathode spots may be restricted by, instead of electron emissive coatings, sleeves of insulating material as in Specification 1,411,492. These sleeves also increase the breakdown voltage between coatings on end faces 21, 22 and the adjacent electrodes 10, 11.
Patent GB-786527-A (GB)
Title: Improvements in work tables and the like
IPC: B25H1/00
Filed: 1955-05-17
Abstract: 786,527. Work benches. MILLWARD, C. S. April 11, 1956 [May 17, 1955], No. 14170/55. Class 61. A work table or stand has a rotatable top with means for locking the top in various positions about its axis of rotation and a movable support below the top which may occupy different positions to present supporting surfaces at different levels. As shown a stand comprises corner posts 1 secured to a square plate 2 to which a plate 4 is rotatably secured by a pivot bolt 3, the plate 4 being supported on steel balls located in countersunk openings in the plate 2. A locking lever 6 pivoted to one of the posts is connected to a plunger which is adapted to enter selectively in holes 8 in the plate 4. The support 12 comprises a rightangled member movable around a pivot axis 10 supported on stays 9 extending between the posts 1. The support may rest on the ledge 13 or against a cross bar removably placed on clips or clamps 16 on the front corner posts. A footoperated lever 14 is provided for moving the support from the position in which it rests on the ledge 13 to either of the other two positions
Patent GB-714502-A (GB)
Title: Improvements in or relating to plastic articles reinforced with fibrous materials comprising aromatic polyesters
Inventor: MEYRICK THOMAS JAMES
IPC: C08J5/06
Filed: 1951-06-15
Abstract: 714,502. Reinforced materials. IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 3, 1952 [June 15, 1951], No. 14200/51. Class 140 Aromatic polyester fibre, yarn or fabric is pretreated with a dyestuff and/or a swelling agent therefor and then used as reinforcement in articles formed from natural rubber, synthetic rubber or synthetic plastic material. The polyesters are obtained by heating glycols of formula HO(CH2)n OH where n is greater than 1 but does not exceed 10 with terephthalic acid or an ester-forming derivative thereof. Preferred glycols are ethylene glycol, trimethylene glycol, tetramethylene glycol. hexamethylene glycol and decamethylene glycol. Dyestuffs and swelling agents which may be used include acetate dyestuffs such as aminoanthraquinones, aminoazobenzenes and their derivatives; fur dyestuffs such as phenylene diamines and aminophenols; basic dyestuffs such as triphenylmethanes, azine. oxazine and thiazine dyestuffs, azo dyestuffs containing amino groups, leuco sulphuric esters of vat dyestuffs; azoic dyestuffs; phenols (phenol, m-cresol, m-methoxyphenol, #-naphthol catechol) amines (a-naphthylamine, guanidine. aniline. water-soluble aniline salts), carboxylic acids (#-naphthoic acid. salicylic acid, methacrylic acid) amides (dimethylformamide, diethylformaimide dimethylacetamide, p-toluenesulphonamide); melamine; alcohols (benzyl alcohol); ketones (acetophenone, cyclohexanone); notriles (glutaronitrile, adiponitrile, ethylene cyanhydrin, lactonitrile): nitrobenzene, tetrachlorethane, tricresyl phosphate and tetramethylenesulphone. The polyester material may be padded in an aqueous solution or dispersion of the dyestuff and/or swelling agent preferably at 80-100‹C. It may then be treated with adhesives such as polyisocyanates, resorcinol-formaldehyde condensates, melamine- @aldehyde condensates and compounds obtained by reacting acetoacetic esters with polyisocyanates. or polyamines with ketenes 'diketenes, and acetoacetic esters. In an example (all parts by weight) 5 parts of washed and dried polyethylene terephthalate tyre cord are worked in a bath of 0.05 part of 4-nitro-4<1>-amino-azobenzene and 250 parts of water at 85‹C. After washing and drying they are dipped in a 3 per cent. solution of p : p<1>-dicarbimido-diphenylmethane and dried at 100‹C. The cords may then be bonded to a natural rubber mix.. Specifications 477,380, [Group IV], 574,903, 609,943, 609,945, 609,948, [all in Group IV (c)], 610,170. 613.931, [Group IV (c)], and 654,331, [Group IV (b)], are referred to.
Patent GB-568765-A (GB)
Title: Improvements in or relating to the measurement of electric current and more particularly current of a short or transient duration
IPC: G01R19/02
Filed: 1943-08-31
Abstract: 568,765. Electromagnetic ammeters; locating faults. DAMANT, E. L. Aug. 31, 1943, No. 14205. Convention date, Nov. 3, 1942. [Class 37] In an instrument for measuring a transient or variable current relatively movable magnetic elements of high retentivity are mounted together in the field of a single current coil so as to operate an indicating element when permanently magnetized by the current in the coil, the current coil being also adapted to carry a, demagnetizing current for zeroizing the instrument. Fig. 1 shows the apparatus arranged for measuring a phase-to-earth fault current on a three-phase system. A current transformer B is arranged in the earth lead from the neutral point N to earth E and has its secondary connected to a rectifier R. The rectified current passes through the instrument AF. A fault at F causes current to flow through the current transformer B, the secondary current being rectified and energizing the instrument AF. The instrument AF is similar to a moving iron repulsion or attraction type of meter except that the magnetic material has high retentivity. The fixed magnetic member Fi, Fig. 2, may be a bar or flat plate or a combination of bars or plates, or may be of triangular or other shape formed to the circumference of a circle. The magnets may be laminated or built up of wires. The movable magnetic member M may or may not be similarly shaped to the fixed member Fi. Passage of current through an enclosing coil C magnetizes the members M, Fi permanently, so that they repel one another, causing a pointer P to be displaced. The instrument may be connected across an ammeter shunt in a D.C. system. After the reading is taken, the magnets are demagnetized by means of a gradually diminishing alternating current. The Specification as open to inspection under Sect. 91 comprises also the following subjectmatter. The current may magnetize a bar of magnetic material of high retentivity, the permanent magnetism remaining therein serving as a measure of the maximum value of the current. The location of the fault is determined by reference to a curve showing the calculated fault current which would flow when a fault occurs at different points in the system. Alternatively, the system may be calibrated by placing faults at various points and measuring the fault current for each fault point. The instrument may be calibrated in A.C. or D.C. amperes or in distance from the point of supply when used for fault location. Maximum or minimum values of temperature, fluid level, &c. may be measured by measuring a current controlled thereby. This subject-matter does not appear in the Specification as accepted.
Patent GB-823035-A (GB)
Title: Improvements in lifting, lowering and hauling
IPC: B66D1/26
Filed: 1957-05-06
Abstract: 823,035. Winding drums. ANGLO AMERICAN CORPORATION OF SOUTH AFRICA Ltd. May 6,1957 [May 7, 1956; June 14, 1956], No. 14361/57. Class 78 (5). A winch drum 10 (Fig. 1) driven by motor 12 winds cables 24, 26 upon its separate drum compartments 18, 20 so as to raise cage 36 up shaft 34. The drum 10 (Fig. 6) is provided with a contact member 40 which is operated in steps through plunger 42 by the sequential energization of coils 54, 55, 56 of solenoid 500 so that, as each cable uniformly forms its second and third and subsequent coils upon the drum surface of its compartment, the contact member 40 is withdrawn in advance of the rising coil and then locked by latch 82. However, if miscoiling should occur, then the coil engages the member 40 and causes it to pivot at 44 and to make the switch 98 to cut out the winch motor 12. Coils 54, 55, 56 are operated sequentially (Fig. 8) by cam 60 driven from the winch drum shaft, locking coil 80 (which operates latch 82) being operated about the same time. The tension in cables 24 and 26 is kept uniform, and a safety device provided in case of cable breakage, as in Specification 823,036.
Patent GB-1495428-A (GB)
Title: Toner for developing electrostatic latent images
IPC: G03G9/087
Filed: 1975-04-09
Abstract: 1495428 Electrostatographic toners and developers KONISHIROKU PHOTO INDUSTRY CO Ltd and SEKISUI KAGAKU KOGYO KK 9 April 1975 [10 April 1974] 14507/75 Heading G2H [Also in Division C3] An electrostatographic toner comprises a colourant and a main resin derived from an alpha, beta ethylenic monomer, which polymer has a ratio of weight average molecular weight to number average molecular weight of 3À5 to 40. In examples, the resin is polystyrene, styrene/butyl methacrylate copolymer, styrene/methyl methacrylate/butyl methacrylate copolymer, methyl methacrylate/ butyl methacrylate copolymer, styrene/vinyl toluene copolymer, styrene/acrylonitrile copolymer, styrene/ethyl hexyl acrylate copolymer and styrene/ lauryl methacrylate copolymer. Mixtures of resins may also be used. The carrier used is iron powder.
Patent GB-1172111-A (GB)
Title: Improvements in the Manufacture of Superconducting Material
Inventor: THULIN SIGVARD
IPC: C23C4/10
Filed: 1967-03-30
Abstract: 1172111 Coating with metals ALLM NNA SVENSKA ELECTRISKA AB 30 March 1967 [31 March 1966] 14528/67 Headings H1A A5 and A4D A super-conducting tape or foil is formed by cleaning a tape of e.g. Nb, plasma spraying e.g. Nb and Sn or V 3 Si, and then rolling the sprayed tape. The tape may be cleaned with emery, steel wool, sand blasting or hydrogen fluoride. The spraying may be done in a protective atmosphere. Separate sprayers may be used for the components of the super-conducting material or they may be mixed prior to spraying. The coated tape may be subsequently sintered.
Patent GB-783965-A (GB)
Title: Improvements in or relating to probe heads
IPC: G10K11/00
Filed: 1954-05-18
Abstract: 783,965. Ultrasonic couplings. GLASS DEVELOPMENTS, Ltd., and SPROULE, D. O. May 18, 1955 [May 18, 1954], No. 14594/54. Class 40 (4). A coupling comprises a wedge 1 formed with a cusp 5, Fig. 1, providing an elongated path for any waves reflected at the contact surface 3 between the coupling and the workpiece. The walls of the cusps are coated with absorbent material. The ultrasonic generator 4 may also be a receiver. The angle of incidence of the waves at a contact surface 10 may be varied by using two couplings 8, 9, Fig. 2, in sliding contact over a cylindrical or spherical surface 11. The transmitter 14 is mounted on coupling 9 and both couplings have cusps. Reference has been directed by the Comptroller to Specification 723,112.
Patent GB-443675-A (GB)
Title: Improvements in cable-covering tiles
IPC: E04B2/02
Filed: 1935-05-20
Abstract: 443,675. Tiles for covering cables. NEW CUMNOCK COLLIERIES, Ltd., Bank, and GREENHOUGH, W., c/o Afton Terra Cotta Brick & Tile Works, both in New Cumnock, Ayrshire. May 20, 1935, No. 14656. [Class 87 (i)] Interlocking tiles for covering buried cables are formed with a dovetail tenon 2 at one end and a dovetail mortise 3 at the other end the top face is ridge-shaped, and the sides and base are plane.
Patent GB-694299-A (GB)
Title: Improvements in or relating to pressure relief valve
IPC: B64D13/04
Filed: 1949-10-13
Abstract: 694,299. Fluid-pressure servomotor-control systems; valves. GARRETT CORPORATION. Oct. 13, 1949 [Nov, 12, 1948], No. 14702/52. Divided out of 694,235. Drawings to Specification, Class 135 A negative pressure relief valve for enclosures such as pressurized aircraft cabins comprises a valve member, a closed chamber having a movable wall, means for restraining movement of a portion of the movable wall in one direction, and means for operatively connecting the valve member with the movable wall so that movement of the restrained portion of the wall acts on the valve member. The invention is described with reference to the disclosure in Specification 694,235.
Patent GB-1284972-A (GB)
Title: Improvements in or relating to panels for use insulated structures
IPC: F25D23/06
Filed: 1970-03-26
Abstract: 1284972 Refrigerators EMHART CORP 26 March 1970 [27 March 1969] 14756/70 Heading F4H Panels for use in a refrigerable structure comprise sheets 8, 10 of surfacing material e.g. metal, for enclosing a thermally insulating material 6 each sheet having an inwardly directed marginal portion 12 having a flange 14 extending parallel to the sheet and spaced from the corresponding flange 14 of the other sheet and means for securing the panel to an adjacent panel is carried by the spaced flanges. The securing means may be of the latch type comprising a male member 20 in a projecting male portion 16 of a panel having a latch 22 actuated by station of a shaft 24 to move the latch into and out of engagement with a pin 26 mounted in a female member 28 in a recessed portion 18 of an adjacent panel. A fixedly secured gasket 17 covers the recessed portion 18. The opposite ends of the securing means 20, 28 have brackets 34 with looped portions 36 and outwardly inclined legs 38, the ends 40 of which are embraced by S-shaped clips 42 which also embrace the edges of the flanges 14 so as to hold the brackets and securing members during expansion of the insulation.
Patent GB-408107-A (GB)
Title: Improvements in and relating to cartons and blanks therefor
IPC: B65D5/60
Filed: 1932-10-19
Abstract: 408,107. Lined cartons. DALLER CARTON CO., Inc., 405, Lexington Avenue, New York, U.S.A. Oct. 19, 1932, No. 14765 /33. Convention date, March 12, 1932. Divided on 402,922. [Class 18.] A lined carton comprises a blank as shown in Fig. 1 cut as one of a series from a sheet 9 and on which a lining 26 is laid as shown by dotted lines, the parts 17, 15, 19 being folded in that order so that the lining is interlocked with one end of the carton in the manner shown in Fig. 2, the end being consolidated by adhesive. The pasting tabs 15, 19 are of a length such that the total area of the pasting tabs is substantially equal to twice the area of an end of the carton. The end flap 14 may be omitted. The lining may be impregnated with adhesive or may be repellent to adhesive.
Patent GB-721841-A (GB)
Title: An improvement in or relating to tools for cutting the teeth of gear wheels
Inventor: SYKES ARTHUR
IPC: B23F21/16
Filed: 1952-06-12
Abstract: 721,841. Milling-cutters. BROWN & SONS (HUDDERSFIELD), Ltd., D. June 12, 1953 [June 12, 1952], No. 14781/52. Drawings to Specification. Class 83. (3). A gear-cutting hob comprises a commencing tooth of full width but of small height, the further teeth being successively of narrower base width and greater height until the full height is reached. The hob is designed so that each tooth removes the same amount of metal. The hob may have one or more finishing teeth to give a smooth contour to the teeth of the work. The Provisional Specification states that the teeth may be of constant base width.
Patent GB-600250-A (GB)
Title: Improvements in thermal responsive electric switches
IPC: H01R13/713
Filed: 1944-08-03
Abstract: 600,250. Electric immersion heaters. BRITISH THOMSON-HOUSTON CO., Ltd., SIMS, W. J., and FELLA, J. H. Aug. 3, 1944, No. 14812. [Class 39(iii)] [Also in Group XXXVII] In a thermal overload responsive switch (see Group XXXVII) associated with the sheathed wire heating element of an electric kettle &c., the thermal element 9 is mounted on a rod 7<11> of high electrical and thermal conductivity e.g. copper or aluminium forming a terminal of the heating element, thereby ensuring that the thermal element responds rapidly to changes in the temperature of the heating element.
Patent GB-1084956-A (GB)
Title: Flexible couplings
Inventor: GREY JOHN CONSTANTINE
IPC: F16D3/84
Filed: 1964-04-09
Abstract: 1,084,956. Universal joints. TURBOFLEX Ltd. April 8, 1965 [April 9, 1964], No. 14830/64. Heading F2U. In a flexible coupling comprising resilient links 5 connected to shaft flanges 2, 3 at points 4 spaced around a common pitch-circle, a shroud 6 is secured by screws to either flange to radially retain the flanges 2, 3 together in the event of total failure of the links 5. A similar coupling is provided at each end of the hollow shaft 1.
Patent GB-1195801-A (GB)
Title: A Printer
IPC: B41L11/00
Filed: 1968-03-28
Abstract: 1,195,801. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 28 March, 1968 [17 April, 1967], No. 14868/68. Heading B6F. In a printer having a type disc 11, Fig. 5, formed with selectable relief characters 11a, impression is effected by a pressure roll assembly 20 comprising a shaft 22 loosely bearing a plurality of adjacent resiliently yielding rings 21 urged toward the disc 11 by a roller 26, the arrangement being such that pressure is applied to the image receiving strip 14 only by the rings 21 opposite the raised portions of the character 11a. The force of impression can be varied by turning eccentric rods 31, which support the roller 26, by means of a lever 18. The rings 21 are preferably made of steel. A print operation is initiated by depression of a key 16, Fig. 2, which releases a latch 54 from engagement with a spring clutch 56 to connect a continuously running motor shaft 57 with a worm gear 61 to rotate a cam-shaft 63. A cam 67 on the shaft 63 lifts the roll assembly 20 into a printing position, whereupon a cam 65 reciprocates the assembly 20 through a follower 74, a linkage 75, an arm 76 and brackets 34 connected to the assembly 20 by pin-and-slot connections. After a single revolution of the shaft 63, the clutch disconnects the drive to the worm gear 61 by means of the latch 54, repositioned by a cam 69. Printing is effected through an ink ribbon 15. Paper feed preferably automatically accompanies a print operation and may be to an extent proportional to the size of character printed. In a modification (Fig. 7, not shown), the roller 26 is replaced by a plurality of discs (86) loosely mounted on a shaft (88) and urged toward the rings (81) by leaf-springs (85).
Patent GB-599447-A (GB)
Title: Improvements in locking devices for frame structures
IPC: A47C3/28
Filed: 1945-06-12
Abstract: 599,447. Locking rods. AKTIEBOLAGET .ODELBERG & OLSON. June 12, 1945, No. 14901. Convention date, June 5, 1944. [Class 80(iii)] [Also in Group XIV] A locking device for a post 10 displaceable in a sleeve 12 comprises a projection 16 on the sleeve which is embraced by a handle 20 by means of a slot 26 the handle 20 having integral therewith a ring 18 surrounding the post 10. A leaf spring 30, mounted on the projection 16 and retained by an abutment 28, bears at its outer end against the underside of the handle 20. Depression of the handle 20 causes the ring to rise and release the post 10 for adjustment.