baber/WOPTO huggingface dataset:
Patent GB-1348848-A (GB)
Title: Polyesters
IPC: D01F6/92
Filed: 1971-04-19
Abstract: 1348848 Polyester fibres KURARAY CO Ltd 19 April 1971 [23 March 1970 (2)] 25039/71 Heading B5B Also in Division C3] The resistance to pilling of fibres or articles made therefrom of a polyester prepared by condensing an aromatic dicarboxylic with a glycol and adding to the condensation mixture before condensation is complete (a) Y/15(Y - 2) to Y/Y - 2 mole per cent based on the units of the polyester which are derived from an acid of a polyalkylene oxide of the formula in which Y is an integer of 3-6, R is a Y valent hydrocarbyl group or Y-valent residue of an aliphatic ether formed by removing Y hydrogen atoms from carbon atoms not attached to oxygen in the ether, each R<SP>1</SP> is independently a hydrogen atom or methyl or ethyl group, R<SP>11</SP> is a hydrogen atom, an acetyl group or a hydrocarbyl group having 1-10 carbon atoms and containing a carboxyl or hydroxy group or an ester thereof, n is an integer of 1-3 and x is an integer of 1-50, and (b) up to Y times the molar amount of (a) of an ester-forming compound having at least 7 carbon atoms and containing one carboxy, hydroxy, meth- or eth-oxycarbonyl, or acetoxy or propionyloxyl group, is improved by subjecting the fibres or articles made therefrom to radiation with light or heattreatment to reduce the intrinsic viscosity of the polyester by at least 0À05. Heat-treatment may be performed using hot air at 100-200‹ C. Ultra-violet ray radiation may be effected at 80‹ C. for 6 or 8 hours. The aromatic dicarboxylic acid used to prepare the polyester may be terephthalic acid, naphthalene-2,6-dicarboxylic acid, a diphenyldicarboxylic acid, a diphenyl ether dicarboxylic acid, ethylene-1,2-bis-(pcarboxy phenoide) or p,p<SP>1</SP>-sulphonyldibenzoic acid and the glycol component used is a polymethylene glycol having 2-10 carbon atoms, cyclohexane - 1,4 - dimethanol, p - xylylene diol or 1,4 - bis - (# - hydroxyethoxy)benzene.
Patent GB-821094-A (GB)
Title: Improved method for descaling surfaces
IPC: C23G1/19
Filed: 1955-08-31
Abstract: Carbonaceous and iron oxide scale deposits are removed from heat-transfer surfaces in hydrocarbon-processing equipment by treatment with a composition comprising an hydrocarbon solvent and an aqueous solution at a pH in excess of 8 containing an alkanolamine and a polyamino-polycarboxylic acid, said alkanolamine and/or acid being in the form of an alkali metal salt.  The hydrocarbon solvent may be kerosene, "Stoddard solvent," light fuel oil, benzene, toluene, or a light or medium naphtha; the alkanolamine may be triethanolamine, diethanolamine, tetraethanol ethylenediamine, N - (3 - chloro - 2 - hydroxypropyl) - diethanolamine, or tris-(hydroxymethyl) methylamine or the diethanol derivative thereof; and the polyaminopolycarboxylic acid may be ethylenediaminetetra-acetic acid, monoethanol ethylenediaminediacetic acid, or acids derived from trimethylene diamine and isopropylenediamine.  The example relates to the cleaning of condenser tubes using a composition containing caustic soda, sodium hydrosulphite and a wetting agent in addition to the necessary ingredients.ALSO:Carbonaceous and iron oxide scale deposits are removed from heat transfer surfaces in hydrocarbon processing equipment by treatment with a water-immiscible hydrocarbon, solvent and an aqueous solution at a pH in excess of 8 containing an alkanolamine and a polyamino-polycarboxylic acid, said alkanolamine and/or acid being in the form of an alkali metal salt.  The hydrocarbon solvent may be kerosene, "Stoddard solvent", light fuel oil, benzene, toluene, or a light or medium naphtha; the alkanolamine may be triethanolamine, diethanolamine, tetraethanol ethylenediamine, N-(3-chloro-2-hydroxypropyl)-diethanolamine, or tris (hydroxymethyl) methylamine or the diethanol derivative thereof; and the polyaminopolycarboxylic acid may be ethylenediaminetetraacetic acid, monoethanol ethylenediaminetriacetic acid, diethanol ethylenediaminediacetic acid, or acids derived from trimethylene diamine and isopropylenediamine.  The example relates to the cleaning of condenser tubes using a composition containing caustic soda, sodium hydrosulphite and a wetting agent in addition to the necessary ingredients.
Patent GB-244869-A (GB)
Title: Improvements relating to presses for taking offset and direct proof prints
IPC: B41F3/30
Filed: 1924-10-21
Abstract: 244,869. Evans, A. B. Oct. 21,1924. Cylinder machines ; offset machines. - In a travelling-cylinder printing-machine for taking direct or offset proofs from a type forme or lithographic plate or stone i, intermediate gearing b, c is employed between the cylinder gear-wheel a and the rack d fixed to the machine frame, so that the tops of the rack-teeth are below the printing-surface. The gear-wheel b may be driven by reduction gearing, or an operating- handle may be attached to the shaft e or f.
Patent GB-220496-A (GB)
Title: Improvements in tool-holders for metal-cutting machine-tools
IPC: B23B29/14
Filed: 1923-10-09
Abstract: 220,496. Davy, J., and Smith, W. Oct. 9, 1923. Tool-holders.-A spring tool-holder is provided with a transverse pin F situated in the gap and held by a clamping screw G to render the holder rigid when required. Holes D, D<1>, D<2> render the holder suitable for plain turning or for side cutting. A clearance hole C is provided opposite the hole D<1>.
Patent GB-1168013-A (GB)
Title: Method for Producing a Heat Storage Composition and use thereof
IPC: F24H7/00
Filed: 1967-06-01
Abstract: 1,168,013. Heat-storage units. COMSTOCK & WESTCOTT Inc. 1 June, 1967 [21 Nov., 1966], No. 25258/67. Heading F4U. [Also in Division C1] A heat-storage composition having a low corrosive activity in a normally corrodible metal heat-storage container is produced by adding a finely-divided metal to an alkali metal hydroxide in an amount of 0À05-5% by weight of the alkali metal hydroxide, and reacting them at a temperature between the m.p. and b.p. of the hydroxide. The composition may be sealed in the container and heat stored in it at 200- 1500 F. and it may be periodically heated above about 700 F. to diffuse the hydrogen from the resulting decomposition through the walls of the container. The alkali metal hydroxide used may be pure such as Li, Na, K, Rb or Cs hydroxides or their mixtures. Technical grade alkali metal hydroxide, e.g. Chlor alkali diaphragn cell caustic or Mercury cell caustic may be used. The hydroxide may be mixed with various other salts which are substantially non-volatile at the higher operating temperatures and which contribute little to corrosion of the system. Preferably an anhydrous alkali metal hydroxide composition of at least 80% alkali-metal hydroxide, e.g. NaOH, is used. The metal container is preferably ferrous, e.g. made of mild steel, but metals of Group VIII and their alloys with Fe are suitable. Other metals specified are Co, Ni, V, Os, Ir, Ru and Rh. Metals of Group VIII alloyed with those of Groups I B , VI B  and VIIB can be used. The wall thickness when using a mild steel container ranges from 0À01-0À3 inch. The finely-divided metal is preferably Fe. A mixture of Fe and FeO or a portion of the metal container ground to a finely-divided state can be used, the particle size ranging from 0À001- 0À2 inch.
Patent GB-1391155-A (GB)
Title: Aircooled reciprocating piston internal combustion engine
IPC: F02F1/04
Filed: 1973-05-29
Abstract: 1391155 Air cooled I C engines DAIMLER-BENZ AG 29 May 1973 [30 May 1972] 25395/73 Heading F1B An air-cooled reciprocating piston I. C. engine comprises a cylinder head 1, a cylinder housing 2 and a crank housing 3 which extends to the part of the cylinder housing 2 nearer the cylinder head 1 and adjoins the cylinder head, to which it is attached, the cylinder housing being mounted on a support 8 on the part of the crank housing nearer the cylinder head 1, but spaced axially therefrom and being provided with cooling fins 9 between the support and the head. The cylinder housing 2 is attached to the head 1 by bolts (7) Fig. 2 (not shown). The fins 9 and jacket 10 are of aluminium alloy cast around housing 2. Recesses 11 permit cooling air to flow past support 8 and air passes via an aperture 15 to a duct 20 in the head 1. Each cylinder has a cooling space 16 and a space 18 is common to all cylinders.
Patent GB-1469406-A (GB)
Title: Fastener setting apparatus
IPC: B21J15/46
Filed: 1973-05-29
Abstract: 1469406 Riveting AUTOMATIC FASTENER CORP 9 May 1974 [29 May 1973] 25582/73 Heading B3U [Also in Division F2] An apparatus for setting a blind tubular fastener 84 in workpieces 114, 116, comprises means 90 for setting one end of the fastener, mandrel means 30 for setting the other end of the fastener, and driving the fastener against the setting means 90 and means 110 for engaging the rearmost workpiece 116 and driving it forwardly whilst the fastener 84 is being driven towards the setting means 90. Upon actuation of a pneumatic-hydraulic assembly 26 by a trigger 80, a mandrel 32 is moved rearwardly by a piston 66 causing a head 40 of the mandrel 32 to expand fingers 46 of a sleeve 34 surrounding the mandrel 32 so as to set the blind end of the fastener 84. When a collar 44 on the mandrel 32 engages a rear flange on a member 56, the mandrel 32 and expanded fingers 46 are moved in unison, by a flange 52 connected to the member 56 engaging a flange 48 on the sleeve 34, to cause the fastener 84 with the workpiece 114 fixed thereon to be moved against a nosepiece 90. A flange 88 of the fastener 84 is slit by sharp ridges 102 on a curved portion 100 of the nosepiece 90 and the slit segments are curved outwardly to set this end of the fastener 84. As the fastener 84 is driven rearwardly, the workpieces 114, 116 are pushed together by a resilient member 110 formed of rubber or plastics or formed by a spring. When the trigger 80 is released, the mandrel assembly 30 is returned to its unexpanded state by springs 76, 78 to allow it to be withdrawn through the set fastener. In another embodiment, the nosepiece 90 comprises a frusto-conical portion (200) (Fig. 10b, not shown) which is used with a fastener having notches (189) (Fig. 17, not shown) in the flange 88 which cause the flange 88 to rupture during setting to produce the flange segments. In other embodiments, the nosepiece 90 outwardly deforms the rear of the fastener 84 without splitting it and may comprise two frusto-conical portions (302, 304) (Fig. 11b, not shown) separated by a groove (306). Alternatively, the nosepiece 90 may comprise a dished recess (502) (Fig. 13, not shown) or a frusto-pyramid portion (400) (Fig. 12b, not shown) having rounded edges (404) between the flat sides (402).
Patent GB-1022620-A (GB)
Title: Improvements in or relating to circular linking machines
Inventor: UNDERWOOD FRANK EDWARD
IPC: D05B7/00
Filed: 1963-06-26
Abstract: The subject matter of the present Specification is identical with the subject matter of Specification 1,022,619.  The claims differ.
Patent GB-211811-A (GB)
Title: Improvements in spark plugs
IPC: H01T13/46
Filed: 1923-10-15
Abstract: 211,811. Swanson, C. S. Oct. 15, 1923. Sparking-plugs.-The earthed terminal 14 and the eccentrically-situated conductor 10 are placed so that sparks pass between these two members and the ends of a U-shaped member 12 embedded in the insulation. The two gaps are separated by a projection 11 from the end of the insulator.
Patent GB-1094898-A (GB)
Title: Anti-offset powder dispensing apparatus and method of dispensing powder
Inventor: LUND FREDERICK JOHN
IPC: B41F23/06
Filed: 1965-06-17
Abstract: 1,094,898. Set-off; preventing. OXY-DRY INTERNATIONAL Ltd. June 17, 1965, No. 25728/65. Heading B6C. Apparatus for applying offset powder P to printed sheets or webs T comprises a powder container consisting of sloping sheet-like members 6, 15 supported by side walls 2, 3, and a rotating roller 20 in the gap between the lower edges of the members 6, 15, the roller having a roughened surface whereby it picks up powder which is subsequently removed from its surface and directed on to the sheets T by air blasts 30 from nozzles 32. The members 6, 15 are supported intermediate their ends by blocks 10, 17 attached to the side walls 2, 3, the block 10, as shown, being adjustable to control the amount of powder taken by the roller 20. The block 17 may also be adjustable. For restricting dispersion of the powder and guiding its movement, air blasts 35 from nozzles 32<SP>1</SP> mounted on the wall 2 may be provided. The roller 20 may rotate in the opposite direction to that shown in Fig. 1 (see Fig. 7, not shown).
Patent GB-243878-A (GB)
Title: Improvements in or relating to caravans or like road vehicles
IPC: B60P3/34
Filed: 1924-10-31
Abstract: 243,878. Purdey, P. J., and Purdey, M. C. Oct. 31, 1924. Rest-bars. - Caravans are provided with telescopic rest-bars h or supports for use when the caravan is parked.
Patent GB-757169-A (GB)
Title: Improvements in and relating to a control device for a transmission mechanism
IPC: F16H61/02
Filed: 1954-09-08
Abstract: 757,169. Controlling change-speed gearing. COMPAGNIE DE PONT-A-MOUSSON. Sept. 8, 1954 [Sept. 16, 1953; July 9, 1954], No. 25994/54. Class 80(2) The supply pipe 1, 8 to the control piston valve 10 of a hydraulically-actuated constant-mesh change-speed gear A has a branch 69 leading to a main exhaust piston valve 79 controlling connection of pipe 69 to an exhaust port 76 and subject at its left-hand end to the pressure in pipe 69 and at its right hand end to the pressure of a spring 83 together with the pressure in a chamber 70 containing a spring-loaded plunger 43, while an auxiliary spring- loaded exhaust valve 66 controlling connection of chamber 70 to an exhaust port 64 is controlled by a spring-loaded valve 37 opened momentarily during movement of valve 10 from any gear position to another so as to connect to an exhaust port 40 a pipe 68 leading from the spring chamber 61 behind valve 66, which chamber 61 communicates through a restricted passage 63 with chamber 70, which latter is also connected to pipe 69 through an adjustable needle valve 60. The arrangement is such that. with a gear engaged, valve 37 is closed, plunger 43 is fully displaced to the' right, valve 79 maintains a predetermined maximum pressure in pipe 1, and valve 66 is maintained closed by its spring since the pressure in chamber 70 has access to chamber 61 through restricted passage 63. On moving valve 10. valve 37 is momentarily opened to vent chamber 61 to exhaust 40, valve 66 therefore opens to vent chamber 70 to exhaust 64, plunger 43 moves suddenly to its left-hand position and valve 79 opens to vent pipes 1, 8, 69 to exhaust 76, thereby disengaging the gear. As valve 10 reaches its new gear position, valve 37 and hence valve 66 close and pressure builds up progressively in the system at a rate depending on the adjustment of valve 60. As shown, communication between chamber 70 and an additional exhaust port 98 is controlled by a ball valve 89 loaded by a spring 94 abutting against a plunger 92 which is controlled by the accelerator pedal 106 and which controls communication at 95 between pipe 8 and exhaust port 98. With the accelerator released, plunger 92 is in its right-hand position. as shown, pipe 8 is open to exhaust 98 through port 95, plunger 70 is in its left-hand position, and the gear is disengaged. As the accelerator is depressed port 95 is progressively closed and the loading of valve 89 increased, allowing pressure to build up to an amount regulated by the degree of depression of the accelerator. Above a certain speed, a switch 105 responsive to the speed of the output shaft D actuates a valve 100 to applv the pressure in pipe 8 through a pipe 99 to the plunger 92 so as to move the latter fully to the left against an abutment 110, thereby overriding the accelerator control.
Patent GB-572363-A (GB)
Title: Printing machines
IPC: B41L47/58
Filed: 1942-11-25
Abstract: 572,363. Compiling statistics. ADDRESSOGRAPH - MULTIGRAPH CORPORATION. Nov. 25, 1942, No. 26164/44. Convention date, Oct. 27, 1941. Divided out of 572,360. Drawings to Specification. [Class 106 (i)] In a printing-machine, type members are set up in accordance with the result of an operation of a multiplying mechanism which includes digit representing members shifted from predetermined initial positions to set positions, each member when in set position being sensed by a sensing device operable to rotate a corresponding pinion from an initial zero position to a set-up position, the type members being set to print the numerical amount indicated by the representing members, while the pinions are turned in the same direction as before into the zero position..The construction described is the same as that described in Specification 572,360. Specification 534,334 also is referred to.
Patent GB-1510568-A (GB)
Title: Artificial graphite
IPC: C04B35/532
Filed: 1976-06-23
Abstract: 1510568 Dual textured graphite LE CARBONE-LORRAINE SA 23 June 1976 [24 June 1975] 26184/76 Heading C1A A dual-textured graphite is described having a coarse grained structure in which each of the coarse grains is formed from a number of strongly linked ultrafine grains, the coarse grains having dimensions in the range 0À4 to 6 mm. and the ultrafine grains having dimensions less than 0À05 mm., the ultrafine grains being bonded together by graphitized carbon containing pores of size less than 2 Ám, and the coarse grains being bonded together by graphitized carbon having pore sizes from 5 to 20 Ám, the dual textured graphite being further characterized by a coefficient of linear expansion of 4-6Î 10<SP>-6</SP>/‹C., a thermal conductivity of substantially 0À20 cal./cm./‹C./sec., an electrical resistivity in the range 1500-2000 Á#/cm. and an anistropy factor as defined of not less than 1À4. The dual-textured graphite may be prepared by (i) intimately mixing 20-30% by weight petroleum or coal tar pitch with 80-70% of finely divided petroleum coke of particle size less than 70 Ám; (ii) forming the mixture into shaped bodies and isostatically compressing the bodies at a pressure of 500-1500 bars; (iii) gradually heating the shaped bodies, at a rate of 4‹C./hr, in a reducing atmosphere to 800-1000‹C to carbonize the pitch and then cooling the carbonized mass to room temperature; (iv) pulverizing the cooled product of (iii) and separating off material of diameter less than 2 Ám.; (v) intimately mixing 80-85% by weight of pulverized carbonized product having a diameter of from 0À4 to 6 mm. with 20-15% by wt. of petroleum or coal-tar pitch; (vi) forming mixture into shaped bodies and isostatically compressing the bodies at a pressure of 500 to 1500 bars; (vii) heating gradually in a reducing atmosphere, at a rate of 6‹C. per hr, to 850‹-1200‹C. to carbonize the pitch and then (viii) further heating the product preferably at a rate of 200‹C./hr up to 3000‹C. to effect graphitization. The graphite product which may contain up to 1000 p.p.m. metallic and silicon impurities may be further purified by carrying out at least part of the graphitization treatment in the presence of chlorine, or the volatile halides of non metals (e.g. CCl 4 , sulphur halides, and perhaloalkane or a perhalocycloalkane having up to four C atoms); an impurity content of less than 10 p.p.m. may be achieved in the graphite product.
Patent GB-338956-A (GB)
Title: Improvements in supports for lamps
IPC: F21V21/22
Filed: 1929-08-28
Abstract: 338,956. Dennys, A. V. L., Grinstead, K. F., and Grinstead, P. F. Aug. 28, 1929. Brackets.-A lamp bracket comprises a plurality of telescopic tubular elements and a flexible element or elements of substantially nonstretchable material situated within, and adapted to prevent separation of, the tubes. In the form shown, the tubular bracket a, b is pivoted on a bolt h between lugs f on a wall plate d and a cord m, chain, or the like is connected at one end to the bolt and at the other end to an eye l on the slidable part a. Rubber or fibre washers r are interposed between the part b and the lugs f, and may be enclosed in a tubular member j. The stem q of a lamp, such as described in Specification 341,492, [Group XI], may be secured by a nut o to the outer end of the bracket. When the bracket comprises three or more parts, each part is connected to the adjacent part by a separate cord or the like.
Patent GB-285533-A (GB)
Title: Improvements in or relating to electrical air core transformers
IPC: H01F19/00
Filed: 1926-10-20
Abstract: 285,533. Edison Swan Electric Co., Ltd., and Soundy, L. H. Oct. 20, 1926. Thermionic amplifiers. -For reducing capacity coupling without substantially reducing the magnetic coupling between the windings 1, 4 of air-cored transformers a metallic screen comprising copper wires 3 arranged parallel to the magnetic field is interposed between the conductors. The wires 3 are joined at one end by a broken metal ring, and are connected to a separate terminal 8 on the transformer base. When applied to intervalve radio-frequency transformers, the screen is connected either to earth or to some point on the high-tension battery, and in a wireless receiver employing three such amplifiers, the screens of the first two transformers are connected to earth, the screen of the last transformer being connected to a point on the battery at, e.g. 25 volts above earth potential. An intermediate tapping point may be provided on one or both windings of the transformer to enable any remaining capacity coupling to be neutralized in known manner.
Patent GB-1343377-A (GB)
Title: Lightweight metal piston with circulating fluid cooling
IPC: F02B3/06
Filed: 1972-06-06
Abstract: 1343377 Pistons SOC AMO 6 June 1972 [14 June 1971] 26308/72 Heading F2T A piston for an I.C. engine comprises a forged light metal body 3 which forms a part of the combustion chamber, and a metal cap 12 which is provided with two or more annular grooves for forming a closed chamber 14 and a chamber 15 circulated with cooling fluid. The cap 12 has the same expansion as that of the light metal, may be made of ferrous or non-ferrous metal, and may be fastened to the body by screwing or shrinking-on. The closed chamber 14 may contain air, gas or a salt. Ducts 17, 18 circulate cooling oil to and from the chamber 15, an additional cooling chamber 15<SP>1</SP> also being provided in the cooling circuit.