baber/WOPTO huggingface dataset:
Patent GB-1478561-A (GB)
Title: Process for producing terephthalic unsaturated polyester resin
IPC: C08G63/54
Filed: 1975-02-18
Abstract: 1478561 Unsaturated polyester resins TOYOBO CO Ltd 18 Feb 1975 [20 Feb 1974] 6779/75 Heading C3R A process for producing a terephthalicmodified unsaturated polyester resin comprises depolycondensing a polyester of terephthalic acid and a glycol which is free from olefinic unsaturation with a glycol different from that in the polyester to an average degree of polymerization of not more than 2À5 and reacting the product with an unsaturated dicarboxylic reactant, and optionally a saturated dicarboxylic reactant and additional glycol, to give an unsaturated copolyester of Acid No. not above 15 and mixing this with a copolymerizable unsaturated monomer. The process of Specification 1,419,049 wherein the initial polyester is polyester waste and depolycondensation is effected in the presence of a titanium oxalate or tartrate compound is disclaimed. An alkylamine is preferably present during the depolycondensation and a phosphorus compound during the re-esterification. Numerous unsaturated and saturated dicarboxylic acids, glycols, alkylamines and phosphorus compounds are mentioned. The products are stated to have good transparency and storage stability.
Patent GB-867409-A (GB)
Title: Improvements in or relating to index files
IPC: B42F17/00
Filed: 1956-03-05
Abstract: 867,409. Filing papers. ELSDEN-KING, H. E., and KILVINGTON, D. J: C. June 5, 1957 [March 5, 1956; June 6, 1956], Nos. 6826/56 and 17438/56. Class 146(1). In an index file for loose papers 26 to be filed between a series of overlapping index leaves 10 secured at their rear edges between the inclined surfaces of a bar 11 that is divided on a line 13 extending at an inclination from one end of the bar to the other, the bar 11 has a projection 28 extending forwardly a short distance and having its length parallel to the length of the bar so as to support some of the leaves 10 and papers 26 to militate against nipping of the papers 26 between the rear ends of the leaves 10. The bar 11 is secured between a base 14 and cover 15 by rivets 16 which also hold the parts of the bar on either side of the leaves 10. The bar 11 may be tapered as in Fig. 1 to a substantially central line 28. Alternatively as in Fig. 5, the bar may be centrally divided and a plate 27 inserted to project at 28. The leaves 10 are longer than the base 14 and have their front ends turned back to form an index 17.
Patent GB-1383596-A (GB)
Title: Loading of vehicles
IPC: B60P1/48
Filed: 1972-02-15
Abstract: 1383596 Loading vehicles TTB (FABRICATIONS) Ltd 11 May 1973 [15 Feb 1972] 6870/72 Heading B8E As a bin 12 is raised by arms 4, 5 on a vehicle, the bin engages a bucket 14 on the vehicle to cause the bin 12 to be inverted over the bucket 14. The bin may carry a pin (17, Fig. 1) which engages a pivotal spring loaded plate 16 on the bucket, or a girdle 11 engaging the bin for lifting carries a bar which co-operates with hooks on the bucket. The bucket houses a compaction plate. During lifting the bin may run on a roller 15 carried by the bucket.
Patent GB-263657-A (GB)
Title: Improvements in metal tube and like bending machines
IPC: B21D9/07
Filed: 1926-03-12
Abstract: 263,657. Jackson, J. E., and Lord, J. March 12, 1926. Angular bending; mandrels.-In a metal tube and like bending-machine of the kind comprising a rotary former to which the tube is clamped and which co-operates with a fixed former and a mandrel with a floating ball-like, end over which the tube is drawn, a lever pivoted on the axis of the former effects its rotation trough pawl and ratchet mechanism. A former c having ratchet teeth c<1> is mounted on a stud b on a base a and is rotated by a,lever d<1> having pawls d<3>, d<4> or an adjustable pawl, the lever being provided with a boss d which serves also as an axlo for the former. Either of the pawls is in engagement according to the size of the former. The tube is fixed to the former by an adjustable block h' carried thereby and is drawn over the mandrel j<1> past an adjustable block or former g mounted on the base a. The mandrel is formed with a swivel ball end j<1> and is carried by a rod j<2> which may be secured by nuts j<3> to a slotted bracket k. The mandrel may be withdrawn by a lever l pivoted at k<1> and carrying a swivel block 1<1>.
Patent GB-890572-A (GB)
Title: Improvements in or relating to control arrangements for nuclear reactors
Inventor: BENNETT GEOFFREY FRANK
IPC: G21C9/027
Filed: 1959-02-27
Abstract: 890,572. Reactor control rods. GENERAL ELECTRIC CO. Ltd. Feb. 26, 1960 [Feb. 27, 1959], No. 6942/59. Class 39(4) A nuclear reactor safety rod is connected to a support member by a bellows-operated latch releasable by abnormal conditions in the reactor. Fig. 2 shows a control rod supported by a ball lock 4 in a carriage sleeve 14 supported by an electro-magnet 5. The balls are held locked by a retainer 16 held in place by a high pressure in bellows 20. Bellows 20 is connected to a glass window 26 near the bottom of the control rod, Fig. 3; the window is surrounded by a magnet 27. An armature 29 is retained by a magnet 28 which loses its magnetism at a lower temperature than magnet 27, so that as the temperature rises beyond its normal level the armature is released and breaks the window, releasing the pressure in bellows 20 and hence releasing the ball lock. Another bellows 21 communicates with the reactor coolant only through a small hole 22, so that a rapid fall in coolant pressure expands the bellows and releases the ball lock.
Patent GB-319885-A (GB)
Title: Improvements in electric traction for railways
IPC: B60M1/36
Filed: 1928-09-24
Abstract: 319,885. Rutnagur, S. M. Sept. 24, 1928. Conductors for electricity; skate collectors.- Short-contact conductors comprise a flexible wire coil or spiral spring D, Fig. 4, supplemented by a flexible wire core J swivelling on a ball-andsocket K or by an inner spring in contact with the outer spring. The contacts are carried by cross-arms C, Fig. 1, of poles A and engage V or channel collectors E connected at 0 and carried by insulated supports S at the centre or side of the roof of the coaches. To break contact, the supports S swing on pins or the contact itself may be lifted clear by a cord or insulated lever.
Patent GB-350386-A (GB)
Title: Improvements in electric brushes
IPC: A45D20/48
Filed: 1930-03-05
Abstract: 350,386. Electrotherapeutic brushes and combs. WILDEY, E. M., Millgrove, Cobham Road, Woodland Drive, East Horsley, Surrey. March 5, 1930, Nos. 7141 and 34857. [Class 81 (ii).] An electrotherapeutic hair brush comprises a brush stock 1 and a carrying member or support 7 therefor containing a battery 4 in the handle 5 thereof, the support being detachably connected to the stock by means, in the form of a friction grip or anchoring device, which also serve as the terminals of an open electric circuit in the brush, and contact with the battery terminals in the support. In the embodiment shown in Fig. 1, the support 7 is in the form of a comb carrying two insulated rows of teeth 3 charged from the battery 4. The connection between the stock and support is in the form of a clip 6 projecting inwardly at 6a to engage in a groove 7a in the support 7, and another clip 8 at the end of the support, formed of two components insulated from one another and each electrically connected to one of two insulated rows of metallic bristles 2a forming the brush. Extensions 8a of the clip 8 grip and make metallic contact with the two insulated rows of comb teeth 3. In the form shown in Figs. 5 and 8 the support 7 is connected to the stock 1 by means of a clip 16 and projecting tongues 15 which fit into grooves 10, which also carry conducting strips 12, 12a. The strip 12 is bent over at the end nearest to the handle 5 so as to contact with one terminal of the battery 4, and the other strip 12a has a projection 14 through which the circuit is completed on moving into contact therewith a ring 13 which screws on a sleeve 23, which itself screws over the threaded end of the support 7. In the form shown in Fig. 1 the circuit is completed by moving the ring 13 against one of the comb teeth 3. Specification 280,308, [Class 81 (ii), Medical &c. appliances], is referred to.
Patent GB-500916-A (GB)
Title: Improvements in or relating to percussive hammers
IPC: E21B1/34
Filed: 1938-03-08
Abstract: 500,916. Percussive tools. GAS TOOL PATENTS CORPORATION. March 8, 1938, No. 7233. Convention date, May 3, 1937. [Class 124] In an internal-combustion percussive hammer, the reciprocation of the piston is automatically subdued or stopped when the hammer is lifted. As shown in Fig. 1, a spring-pressed throttle rod 27 is fastened to a handle ring 25 capable of a limited vertical sliding movement so that, when the hammer is lifted by a pair of handles 24, the portion 29, below the reduced portion 30, of the rod 27 substantially closes the passage 17, through which the combustible charge is delivered, and thereby subdues the piston reciprocation to idling action. As shown in Fig. 6, the slidable handle yoke 63 is provided with racks 66, 67 for operating pinions 69, 70 engaging racks on a starting rod 68 so that, on lifting the hammer by the handles 61, 62, the rod 68 is moved downwardly to stop the piston. Initial starting can be effected by reciprocating the handles 61, 62 relatively to the hammer body. In either case, the handles may,be locked in the working position by means of a spring-pressed latch 32, which can be held in the retracted position by' engaging the bent end in a notch 35.
Patent GB-1262157-A (GB)
Title: Photographic camera with automatic film threading means
IPC: G03B17/30
Filed: 1969-02-11
Abstract: 1,262,157. Camera film threading arrangements. AGFA-GEVAERT AG. Feb.11, 1969 [Feb.14, 1968], No.7242/69. Heading G2A. A photographic camera having an automatic film threading device has a film tape-up chamber 7 having a film entry aperture defined by first and second guide means for guiding the film into the chamber, the second guide means being arranged towards the back of the camera and being mounted so as to be pivotable towards and away from the first guide means and being resiliently urged to pivot towards the first guide means. A compression spring 14 is arranged between the second guide means and the camera housing 1, then a lid of the camera makes contact with the lever at 12c when closed to enlarge the film entry aperture. The leading edge 5a of a film 5 is guided into the nip between a spring-loaded pressure roller 8 and a spool 6. A pair of rollers mounted on separate spring-loaded arms may be provided. During threading, a film tongue of reduced width is urged in a lateral direction by an edge (7b), Fig. 2 (not shown) of a recess formed in the internal peripheral wall of the take-up chamber, the edge extending obliquely in the axial direction away from one end of the chamber in the direction of movement of the film. Alternatively, Fig.4 (not shown), a pressure roller 16 provided on the second guide means and engaging the film is arranged on an axis oblique to the longitudinal axis of the film transport path.
Patent GB-1254265-A (GB)
Title: Polyester composition and process for its preparation
IPC: C08G63/66
Filed: 1970-02-16
Abstract: 1,254,265. Polyester compositions. TORAY INDUSTRIES Inc. 16 Feb., 1970 [18 Feb., 1969; 21 Feb., 1969], No. 7253/70. Heading C3R. A polyester composition comprises a mixture of (a) a linear polyester, at least 80% by weight of the units of which have the general formula in which G is an aliphatic hydrocarbon group having from 2 to 15 carbon atoms or an alicyclic hydrocarbon group having from 4 to 15 carbon atoms and (b) a polyether-polyester block copolymer in which the polyether blocks have the general formula -(RO-) n  in which R stands for an alkylene group and n is an integer from 100 to 1000, the total weight of polyether units being from 10 to 97-5% by weight of the block copolymer and from 0-1 to 10% by weight of the total mixture. The relative viscosity of the block copolymer is preferably at least 2-5 and the melt viscosity of the block copolymer at 290 C. is preferably from 0-1 to 10 times that of the linear polyester. The composition may contain a surface active agent. A compound having at least three ester forming groups may be added during the preparation of the block copolymer to increase its relative viscosity. In the examples the linear polyesters used are polyethylene terephthalate or an ethylene terephthalate/ethylene isophthalate copolymer and the block copolymer used was that of polyethylene terephthalate and polyethylene glycol or ethylene oxide/propylene oxide block copolymer, which may also contain residue of 1,2,4,tri(2- hydroxyethyl)trimellitic ester, l,2,4,5-tetra-(hydroxyethyl) pyromellitic ester or pyromellitic anhydride as a viscosity increasing agent. In Examples 23 and 24, dodecyl-benzene sodium sulphate was added as a surface active agent.
Patent GB-201137-A (GB)
Title: Improvements in and relating to flexible shutters for desks, cupboards and the like
IPC: E06B9/11
Filed: 1923-03-13
Abstract: 201,137. Gauger & Co., F. July 24, 1922, [Convention date]. Desks.-Flexible shutters are so fastened at the lower or inner end that, on opening, a free loop 12 is formed. The inner end 2 of the shutter is securely attached to a cross rib 9 in a compartment 8 by means of two flexible strips 5, and the loop is formed between two laterally placed limiting-bars 10, 11. The shutter is of smooth sheet steel, corrugated sheet steel, flexible veneer, wood or the like.
Patent GB-589510-A (GB)
Title: Improvements in or relating to kettles and like domestic utensils
IPC: A47J27/21
Filed: 1945-03-23
Abstract: 589,510. Kettles. CLAY, A. E. March 23, 1945, No. 7330. [Class 66] A kettle &c. 1 has a handle formed of two side arched portions 2 and a front arched portion 3 joined together at 3x. The front arch of the handle 3 may overhang the spout. The handle grip may be of heat-insulating material. A lid 7 is hinged at 8 and has a finger-piece 9. A spout 5 may have a front portion 13 not protruding beyond the widest part of the body.
Patent GB-1489559-A (GB)
Title: Catalytic process for the preparation of acrylic acid or methacrylic acid
IPC: C07C51/25
Filed: 1976-02-25
Abstract: 1489559 Unsaturated carboxylic acids MITSUBISHI RAYON CO Ltd 25 Feb 1976 [3 March 1975 5 March 1975] 07424/76 Heading C2C [Also in Division B1] (Meth)acrylic acids are prepared by oxidizing acrolein, methacrolein or mixtures thereof in the gas phase at 240-450 C. with molecular oxygen in the presence of a catalyst of empirical formula where Q is calcium and/or magnesium, b is 0À2 to 6, R is at least one of K, Rb, Cs, and Tl, c is 0À2 to 6, X is at least one of B, Si, Mn, Fe, Co, Zn, Ge, U, Sn, Pb, Cr, Ti, Ta, Sb, Nb and Bi, d is 0À01 to 6, Y is at least one of V, Cu and Ni, e is 0 to 6, Z is Sr and/or Ba, f is 0 to 6, and g is determined by the valencies. The catalysts are prepared by conventional methods and may be on a carrier. Examples describe the preparation of many catalysts and their use in the preparation of methacrylic and acrylic acids.
Patent GB-830696-A (GB)
Title: Improvements in or relating to motor vehicle wheel suspensions
IPC: B60G15/06
Filed: 1957-03-06
Abstract: 830,696. Road vehicle spring-suspensions. FORD MOTOR CO. Ltd. March 6, 1957 [March 7, 1956], No. 7437/57. Class 108(2) A-wheel suspension for a motor vehicle comprises upper and lower telescopically related cylinders 79 and 77 connected to a sprung structure and a wheel supporting structure respectively, a suspension arm 73 pivotally connected at one end 74 to the sprung structure and at its opposite end to the lower cylinder 77, the suspension arm 73 and cylinders 77, 79 guiding the supporting structure and road wheel 84 during their rising and falling movements, an expansible fluid chamber between the lower cylinder 77 and the sprung structure, and a power source (not shown) for applying pressure to the fluid in the expansible chamber to resiliently support the sprung structure on the supporting structure, the expansible chamber comprising a resilient sleeve 88 having one end connected to the upper end of the lower cylinder 77. and its opposite end connected to the sprung structure. The sleeve 88 is supported during operation by concentric cylinders 89 and 91 connected to the telescopic members 77 and 79 respectively. Air or other fluid under pressure is supplied to the expansible chamber through passages 106 and 107 in an end cap 101 of the upper cylinder 79. The expansible chamber is closed at its upper end by a plate 99. The end cap 101 is rotatably connected by means of bearings 102 to a mounting plate 103 of a resilient mount 82 carried by a body panel 83. The mount 82 comprises a hollow resilient annulus. In a modification (Fig. 3, not shown) additional spring support is provided by a helical spring inserted between the plate 99 and the upper end of the lower cylinder 77. Specifications 772,230 and 780,602 are referred to.
Patent GB-1026611-A (GB)
Title: Improvements in or relating to series-connected electrolytic condensers
Inventor: TOMES DEREK WILLIAM
IPC: H01G9/08
Filed: 1962-02-26
Abstract: 1,026,611. Capacitors. PLESSEY CO. Ltd. Feb. 15, 1963 [Feb. 26, 1962], No. 7437/62. Heading H1M. A composite series electrolytic capacitor comprises (Fig. 1) a common electrode strip 1 lying between two porous separator strips 2, 2a of greater width than the electrodes in which the electrolyte is absorbed and two laterally disposed terminal-electrode strips 3, 4 with connection tags 5, 6 spaced apart by an insulating strip 8 projecting outwardly beyond the separator strips on each side. The composite strip is spirally wound (Fig. 2, not shown) and the lateral spacing between the terminal electrode, corresponds to at least one full winding turn. The insulating strip may be of such length as to partially overlap the terminal electrodes, and may be perforated, e.g. at 8a, to assist heat dissipation, while it may be of thermoplastic film, varnished paper or cloth, or anodized or lacquered metal foil. The separator strips may be gapped in correspondence with the insulating strip, and the latter may occupy plural winding turns. The capacitor may comprise more than two series elements, and the separators and electrode foils may all be discontinuous.
Patent GB-905225-A (GB)
Title: Improvements in or relating to drive units for wheeled vehicles
IPC: B62D51/00
Filed: 1958-03-07
Abstract: 905,225. Electrically propelled vehicles. STEVENS, H. D. W., and CORBETT & CO. Ltd., R. H. Feb. 5, 1959 [March 7, 1958], No. 7477/58. Classes 79(2), 79(3) and 79(5). A drive unit for attachment to a wheeled vehicle, such as a loader, includes a wheel A, Fig. 1, rotatable about a horizontal axis, an electric motor B, Fig. 4, in driving connection with the wheel through gearing 12, 14, 23, 24, 26, 27 and an internal gear 29 fast with the wheel hub, a support 6 for a battery 7, structure forming carrier means E for these parts and means 61, 62 for attaching the structure to the vehicle, the motor being located at least partly within the wheel. The means 61, 62 consist of a pair of draw bolts which connect a pair of brackets on the carrier E with a similar pair on the vehicle. Alternatively, a permanent or electro magnet or bolted brackets of different design from those shown may be used to connect the carrier to the vehicle. The motor, the gearing and the wheel B are assembled in a mounting D which may consist of one or more castings and has a vertical pivotal connection 9, Fig. 5, with the carrier E, the motor and battery being connected by brushes and slip rings 53, 54. A pair of contact actuators 38, 39 for forward and reverse running, respectively, are actuated by pushing and pulling a steering handle 45 from a neutral position in which it is held by springs 51, 52. When the motor is energized, a solenoid opens a brake band held by spring pressure against a pulley wheel mounted on an extension 91 of the motor shaft. Fig. 9 shows a construction in which the steering handle 72 operates cams 77 through levers 74, 76 to lift the pin 9 and hence the wheel A away from the ground. Latch members 85 on the levers 76 engage pins 86 to lock the wheel in its raised position and actuate an on-off switch 89 for the motor, a reversing switch 90 being provided on the handle.
Patent GB-1190512-A (GB)
Title: Process for the Production of V-Triazolyl-Coumarins
IPC: C08K5/3472
Filed: 1968-02-15
Abstract: 1,190,512. Preparation of #-triazolyl coumarins. J. R. GEIGY A.G. 15 Feb., 1968 [16 Feb., 1967], No. 7484/68. Heading C2C. [Also in Divisions C3 and D1] v-Triazolyl coumarins of the general Formula (I) wherein Y is a mononuclear carbocyclic or heterocyclic aryl group, V and W, independently represent hydrogen or an optionally non- chromogenically substituted alkyl, alkenyl, aralkyl, cycloalkyl group or a carbocyclic or heterocyclic aryl group consisting of at most 3 rings having 5 or 6 ring members, a secondary or tertiary acylamide group optionally non- chromogenically substituted, containing an aliphatic, carbocyclic or heterocyclic aryl group, an alkoxy carbonyl or carbamoyl radical, a secondary or tertiary di- or tri-azinylamino group non-chromogenically substituted, a saturated heterocycle or the sulphonic acid group or derivatives thereof, or V and W together represent a tetramethylene group optionally substituted by alkyl (C 1 -C 4 ) groups or may also form a C 5 -C 6 -cycloalkyl ring condensed with a benzene ring optionally substituted by alkyl (C 1 -C 4 ), the benzene ring of which may also be non-chromogenically substituted, R 1  and R 4  independently represent H or alkyl (C 1 -C 4 ) and R 2  and R 3  independently represent H, alkyl (C 1 -C 4 ) or alkoxy (C 1 -C 4 ) are prepared by reducing v-triazole oxides of the general Formulµ (II), (IIa) by known methods. Advantageously base metals and acids are used, although salts of reducing acids and phosphorus can also be used. Examples prepare 2-[3-phenyl-coumarinyl-(7)]- 4-methyl-5-furyl-(2)-v-triazole, 2-[3-phenylcoumarinyl-(7)]- 4,5-diphenyl-v-triazole, 2-[3- phenyl - coumarinyl - (7)] - 4 - methyl - v - triazole, 2 - [3 - phenyl - coumarinyl - (7)] - 4 - methyl - 5 - benzyl - v - triazole, 2 - [3 - phenyl - coumarinyl - (7)] -4,5 - dimethyl - v - triazole and 2 - [3 - phenyl - coumarinyl - (7)] - 4,5 - dihydronaphtho-[1,2 d]-v-triazole.