baber/WOPTO huggingface dataset:
Patent GB-1256425-A (GB)
Title: A top closure unit for a shaft furnace
Inventor: SCHNEIDER NORBERT-INGEMAR
IPC: C21B7/18
Filed: 1969-03-10
Abstract: 1,256,425. Charging blast furnaces. N. I. SCHNEIDER. 10 March, 1969 [8 March, 1968], No. 12503/69. Heading F4B. Material to be charged to a blast furnace, on its way from lock chambers 10, 11 to a distributing bell 27 of the type disclosed in Specification 1,256,424, passes through a rotary distributing funnel 6. The drive transmission 14, 15 for the funnel 6 is contained within a stationary housing 5 to which cleaned cooled blast furnace gas is admitted through openings 21, 22 to prevent the corrosive hot gas from the furnace top from leaking into it. Gas seals 19, 23 also help to prevent such leakage. A slidable apertured sealing plate 33 is mounted between the furnace top 8 and a flanged expansion allowing bellows 9, which gas tightly connects the furnace top 8 to the housing 5, to close off the furnace top when necessary for repair of the rotary funnel 6. (For Figure see next column.)
Patent GB-930572-A (GB)
Title: Improvements in photographic processes and in photographic sensitive materials therefor
IPC: G03C5/30
Filed: 1960-04-08
Abstract: 930,572. Photographic light-sensitive materials and processes; thermographic processes. KODAK Ltd. April 8, 1960 [April 10, 1959], No. 125l4/60. Drawings to Specification. Class 98 (2). A light-sensitive material which is developable by the action of heat alone comprises a silver halide emulsion and, in the emulsion or adjacent layer, a 3-pyrazolidone developing agent and an alkaline substance, the developing agent being present in an amount of at least 5 grams per mol. of silver halide. The emulsion or adjacent layer also may contain an additional developing agent such as an ascorbic acid or a polyhydric phenol, a saccharide such as sucrose, raffinose, fructose, glucose, inulin, melezitose, pectin, starch or trehalose, or a mercaptan as stabilizer (e.g. thiosalicylic acid or 1-phenyl-5- mercapto-tetrazole). The alkaline substance may be sodium hydroxide, carbonate or metaborate or a quaternary ammonium base. Development may be effected by passing the exposed material over a heated roller. Water may be added if desired but is not normally necessary. ; The prints may be stabilized by dusting an acid, desensitizer or antifoggant on to the surface and steaming. Thus 6-chloro-4- nitrobenztiazole, 5 - chlorobenzinazole, 3- methylbenzthiazolium methosulphate or a mixture of 6-chloro-4-nitrobenztriazole and sulphamic acid may be used for this purpose. A material for thermographic transfer may comprise a support bearing a gelatin layer containing the alkaline substance and an auxiliary developing agent, and then a silver halide emulsion containing a 3-pyrazolidone developing agent and sucrose, to which also has been added a wax such as paraffin and a dye. After exposure and heat development according to the invention, the emulsion side of the material is placed in contact with absorbent paper and exposed to infra-red radiation. The wax in the region of the silver image melts and transfers with the dye to the absorbent paper. Specifications 679,677, 679,678, 757,271, 767,700 and 767,705 are referred to.
Patent GB-677299-A (GB)
Title: Improved low temperature process and apparatus for separating gas mixture
IPC: F25J3/04
Filed: 1950-05-19
Abstract: 677,299. Separation of air. LINDE AIR PRODUCTS CO. May 19, 1950 [May 20, 1949], No. 12553/50. Class 8 (ii) The elimination of higher boiling point impurities from a substantially binary gas mixture e.g. air prior to its rectification in a column 32, 37 at low temperature and following cooling of the compressed air in regenerators 12, 121, 14 141 is effected by passing the cooled air through ducts 16, 17, 18 into a chamber 19 where it is scrubbed with liquid formed by liquefaction of air in tubes 49 cooled by effluent nitrogen product passing from the column 37 through ducts 44, 47 and the scrubber liquid is freed from impurities e.g. by a carbon dioxide filter 71, and the warmed nitrogen is passed through the exchanger under regeneration to a delivery duct 51. More scrubber liquid is provided by liquefying scrubbed gas in heat exchange tubes 59 cooled by oxygen gas from a vaporizer 54 supplied with gas and liquid through valved ducts 52, 56 ; the warmed oxygen gas passing through a duct 60 to one or other of the regenerators 14, 141 and a delivery duct 61. Scrubbed unliquefied air leaving the tubes 49, 59 through ducts 68, 69 is joined by scrubbed air in a duct 63, and a minor portion of the combination is liquified in a vaporizer condenser 55 and returned as scrubber liquid to the chamber 19, whilst the remainder is fed to the base of column 32. Scrubbed air also passes from the chamber 19 through a duct 27 and one or other of exchangers 23, 231 where it is warmed by indirect countercurrent heat exchange with partly cooled air tapped at ducts 21 from near the base of the regenerators. The warmed scrubbed air is expanded at a turbine 29 and is joined by_ a portion of returning nitrogen in the duct 47 before being fed through a duct 30 into the column 37. In a modification warming of the scrubbed air prior to its expansion in the turbine 29 is effected by passing it through coils arranged in parallel near the base of each regenerator 12, 121, 14, 141, and the expansion cold is in part used to further cool the scrubbed gas being fed to the base of the column 32.
Patent GB-316568-A (GB)
Title: Improvements in and relating to double water-trapped grease retaining gullies
IPC: E03F5/16
Filed: 1928-04-30
Abstract: 316,568. Grant, E. H. S. April 30, 1928. Gravity-separation apparatus. - A gully for separating greasy and other light materials from liquids comprises an inlet chamber fitted with a silt receptacle, a primary water-trap, a grease chamber containing a grease retaining and emptying vessel, and a secondary water-trap communicating with the drainage system. The liquid is admitted into the retangular gully shown through a top inlet 1 or side inlets 2. A vertical baffle plate 5 divides off a silt chamber 3 and forms a weir 6 over which the liquid falls into a primary water-trap 7, a splash guard 8 being provided above the plate 5. A grating 9, or a solid cover, fits over .the chamber 3, in which may be placed a removable silt receptacle 10. The waterseal 7 leading to the grease chamber 15 is formed by a depending plate 11 in which apertures 16 may be provided. The grease chamber 15 is provided with a removable grease-retaining receptacle 14 and with a central baffle plate 17. Thefsecondary water-seal 19 is formed by a deep depending plate 18, in which is a cleansing opening 20 closed by a plug 21. The open grease-retaining receptacle 14 is channel-shaped, decreasing in width towards its base. It is supported on narrow bearers 24 resting on ledges or lugs 13, 13A and is provided with a central vertical baffle plate 25 which does not reach to the bottom. The liquid passes between its walls and the plates 11, 18. One or more handles 27 prevent upwaxd movement of the receptacle 14 by contact with a solid cover 22. According to the Provisional Specification the grease-retaining receptacle rests directly on the supporting ledges and has internal baffle plates forming channels for the liquid.
Patent GB-1079697-A (GB)
Title: Improvements in or relating to aqueous dispersions of ternary copolymers
IPC: C08G2/00
Filed: 1966-03-22
Abstract: Stable aqueous dispersions of ternary copolymers are obtained by emulsifying (a) 1 to 4 parts by weight of acrolein, (b) 10 to 20 parts by weight of acrylonitrile and (c) 79 to 86 parts by weight of ethyl acrylate-the sum of (a+b+c) always being 100 parts by weight-in an aqueous medium in the presence of an emulsifier and copolymerizing the resulting emulsion using as Redox catalyst hydrogen peroxide and ascorbic acid.  Ferrous ions in the form of Mohr's salt may be used as actiator. Conventional anionic and cationic emulsifiers may be used.  The copolymers may be cross-linked e.g. with hydrazine hydrate.ALSO:Stable aqueous dispersions of copolymers of acrolein, acrylonitrile and ethyl acrylate (see Division C3) are used for dressing leather and coating paper and textile materials.  The Examples describe the use of compositions comprising a commercial casein-free topping dye or pigment paste, water and the copolymer dispersion.  Chrome-side or clothing leather is whetted, after-tanned, pre-dyed, plush-wheeled with the above composition, dried, ironed, sprayed cross-wise with the composition, dried and ironed again.
Patent GB-1442122-A (GB)
Title: Photochlorination of xylenes
IPC: C07C67/00
Filed: 1975-03-27
Abstract: 1442122 Photochlorination of xylenes HODOGAYA CHEMICAL CO Ltd 27 March 1975 [28 March 1974] 12847/75 Heading C2C The invention comprises a process for the production of chlorinated xylenes having chlorinated side chains wherein a xylene is placed in contact with chlorine at a temperature of 0‹ to 160‹ C. while being irradiated with radiation, characterized in that said radiation comprises light wave lengths of 380 to 500 mÁ in a dosage of not less than 0À5 W./m.<SP>2</SP> and the dosage of any light wavelengths shorter than 380 mÁ. in said radiation is at most 10% of the dosage of said light wavelengths of 380 to 500 mÁ. Preferably the radiation is from an indium lamp.
Patent GB-143044-A (GB)
Title: An improvement in or connected with water-heaters and apparatus for heating fluids
IPC: F24H1/00
Filed: 1919-05-22
Abstract: 143,044. Lawton, W. A. May 22, 1919. Heating by electricity.-A submersible device for heating the liquid in a bath, for example, comprises a conical vessel 1 heated by electricity and connected with the outside liquid by an inlet pipe 2 of inverted conical form. A spout 7 returns the liquid heated.
Patent GB-930721-A (GB)
Title: Apparatus for dislodging material from the tops of stacks
Inventor: KAYE ROGER BAKER
IPC: B65G65/42
Filed: 1960-04-12
Abstract: 930,721. Lift-truck attachments for removing material from stacks. CLIFFE &CO. Ltd. July 12, 1961 [April 12, 1960], No. 12955/60. Classes 78 (3) and 78 (4). Material is dislodged from the top of a stack by teeth 50, Fig. 1, mounted on an endless belt 48 which is driven by a motor 56, the apparatus being supported in cantilever fashion by a lifting device. The apparatus may be clamped to the face-plate 12, Fig. 3, of a fork-lift truck by a nut and bolt 20, 18 and a plate 16 which passes through a slot 14, Fig. 1, in a back-plate 10 of the apparatus. Shafts 42, 44, carrying sprockets 46 which support the endless belt 48, are mounted on adjustable mountings 40. The toothed belt may comprise a lattice sheet, well known in the textile art, supported on a pair of chains passing round sprockets 46. A stripper 74 is rotated at high speed to remove the dislodged material from the spikes 50 by means of paddles 76. A suction device may be fitted over a hood 86 in a top cover 68 to clean the interior of the casing or act as an additional stripper device. For handling different materials the teeth 50 may be replaced by bars, laths or a roughened belt.
Patent GB-1458947-A (GB)
Title: Fluoroscopic systems
IPC: G01N23/04
Filed: 1975-03-27
Abstract: 1458947 Image pick-up tubes USS ENG & CONSULTANTS Inc 27 March 1975 [8 April 1974] 12972/75 Heading H1D [Also in C4] A fluorescent screen 12 comprising a transparent glass plate 21 carrying an X-ray responsive fluorescent material 20 and having bevelled edges (for further details of the screen see Division C4) is disposed in front of a camera tube 43 and the optical image output of the screen 12 is projected on to the photocathode 41 of the tube 43 by means of a lens assembly 40, the screen 12, lens 40 and tube 43 being constructionally connected by a light-tight housing containing baffles 42.
Patent GB-212456-A (GB)
Title: Improvements in the heat treatment of plants
IPC: A01C1/08
Filed: 1923-05-15
Abstract: 212,456. Barford & Perkins, Ltd., and Perkins, F. A. May 15, 1923. Heating water.-In a method of treating bulbs for the destruction of parasites by immersing the bulbs for about three hours in water maintained at a temperature of 110‹ F.-115‹ F., the water is heated by steam passed through a pipe 5 fitted with regulating valves 7 of the disc type and having its outflow end 9 raised above the level of the inflow end. The initial heating of the water is effected by opening the valves 7; when the critical temperature is reached the valves are closed so that a small leakage of steam maintains the temperature of the water in the coil 4. Separate coils may be fitted for the initial heating of the water and for maintaining the temperature. A thermostat, disconnected by a bye-pass fitting during initial heating, may be fitted in a single steam pipe or a thermostat may be fitted in the auxiliary pipe when two pipes are used. In a modification the steam is blown into the water in a tank 2.
Patent GB-633146-A (GB)
Title: An improved process for the production of a high-strength porous and fibrous building and insulating material
IPC: C04B28/02
Filed: 1947-05-14
Abstract: A porous and fibrous plastic composition is prepared by incorporating glass fibres in a cement mortar containing air or other inert gas finely dispersed therein and then setting the mixture.  The glass fibres, which may be cut to any suitable length, may be arranged parallel to one another by carding before incorporation in the mortar, or may be disposed in one direction by forcing the mass through an orifice of suitable size, or may be distributed homogeneously throughout the mass.  Specification 633,114 is referred to.
Patent GB-987125-A (GB)
Title: Process and converter for the production of steel
IPC: C21C5/42
Filed: 1962-04-04
Abstract: <PICT:0987125/C6-C7/1> Pig iron is refined particularly to remove phosphorus by blowing with oxygen through lances in a converter which undergoes an agitating movement in which its longitudinal axis describes the surface of a double cone of circular or elliptical cross-section. The converter 1 with its trunnions 2 is mounted in bearings 3 of a gimbal ring 4, held in stationary bearings 6 by journals 5, and a crank drive, e.g. parallel cranks 11 and 12 interconnected by a coupling rod 13, is disengageably connected to the lower part of the converter, e.g. in the centre of its base or laterally on journals 14 or 15.  The common vertex of the double cone described by the converter's longitudinal axis is disposed at the intersection of the central axis of the trunnion 2 and journals 5. Remaining forces of inertia may be balanced by counter-weights 18 on the cranks 11, 12 (see Fig. 4, not shown).
Patent GB-1452802-A (GB)
Title: Desulphurisation process
IPC: B01J21/12
Filed: 1974-03-25
Abstract: 1452802 Hydrodesulphurisation catalyst BRITISH PETROLEUM CO Ltd 7 March 1975 [25 March 1974] 13053/74 Heading BIE [Also in Division C5] A hydro-desulphurisation catalyst comprises 1-10% wt. of an iron group metal present as a compound, 5-25% wt. of Mo, W or Or, present as a compound and 0.1-10% wt. of Mg, Ca, Sr or Ba, present as a compound, on a refractory support. The composition may be sulphided. The support may be alumina, silica, silicaalumina (e.g. 5-95% wt. alumina and 95-5% wt. silica or alumina stabilised with up to 5% wt. silica) or alumina stabilised with up to 5% wt. of phosphate. The catalyst may be prepared by impregnation followed by calcination and sulphiding. The Examples relate to sulphided cobalt-molybdenum-magnesium oxides on alumina.
Patent GB-321195-A (GB)
Title: Improvements in or relating to apparatus for the feeding of molten glass
IPC: C03B7/08
Filed: 1928-05-04
Abstract: 321,195. Pearson, T. F. May 4, 1928. Delivering molten metal.-A feeder of the reciprocating- plunger type has the outlet orifice 1 surrounded by a cylindrical sleeve or baffle 2 which extends upwards beyond the level of the glass but is open to the hot gases, and an opening 5, controlled by a gate 6, is formed in the side of the sleeve remote from the body of the furnace. The amount of glass flowing through the orifice 1 is regulated by the gate 6 which can either be raised to any desired position or it can be reciprocated in unision with the plunger 3.
Patent GB-983150-A (GB)
Title: Control apparatus for hydraulically operated clutches
IPC: F16D25/04
Filed: 1961-04-12
Abstract: 983,150. Clutch control. K. HAUSSERMANN, H. HAUSSERMANN, L. HAUSSERMANN, [trading as LAMELLEN UND KUPPLUNGSBAU AUGUST HAUSSERMANN]. April 12, 1961 [April 12, 1960], No. 13113/61. Headings F2C and F2L. An hydraulically engaged friction clutch in a vehicle transmission which is disengaged on actuation of the gear-shift lever comprises a driving flywheel 1 fast with a back plate la on which is mounted an annular diaphragm 2 acting on the clutch presser plate 3. Supply and exhaust of pressure liquid to the annular chamber behind the diaphragm is controlled by valve sleeves 15, 16 axially slidable on projections 13, 14 of the back plate 1a. Liquid is drawn from a sump 19 by an input driven pump 9 and supplied through an annular passage 22 to a passage 23 in the back plate leading to the projection 14. The valve sleeve 16 in the inward position shown connects the passage 23 to a passage 24 leading to the annular chamber, and an exhaust passage 26 in the projection 13 is blocked by the sleeve 15. In the outer position of the sleeves passage 23 is blocked and passage 26 opened to exhaust the chamber and permit springs 38 to disengage the clutch. The sleeves 15, 16 are controlled by a common collar 30 having a peripheral groove engaged by lugs 27, 28 on the sleeves. The collar 30 is held from rotation and may be shifted to the right by electromagnetic or other means on actuating the gear-shift lever, and be biased to the left by springs. The groove has wide portions bounded by side walls 30<SP>1</SP>, 3011 with intervening narrow portions. On shifting the collar to the right or left, as viewed in Fig. 1, when the valve sleeve lugs are in a wide part of the groove the sleeves first remain in position, then the lugs engage a side wall 30<SP>1</SP> or 30<SP>11</SP> and the sleeves are shifted to the right or left. At the end of this movement spring-loaded balls 35 mounted in bores in the valve sleeves 15, 16 engage holes 32 in a detent stirrup 31 and give a slight further movement to the valve sleeves so that the lugs are held in a mid-position out of contact with the side walls of the groove and the valve sleeves are retained in their end positions. Specification 981,593 is referred to.
Patent GB-560123-A (GB)
Title: Filters for gases under pressure
IPC: B01D46/24
Filed: 1942-09-17
Abstract: 560,123. Gas filters. YOKES, C. G., STOKES, E. A., and VOKES Ltd. Sept. 17, 1942, No. 13133. [Class 8 (ii)] Hot gas under pressure, e.g. combustion products from a cordite cartridge pass into a pressure vessel 1 containing an outer filter of heat resisting granular material such as plaster of Paris or silica gel enclosed in a basket 12 and an inner filter 14 also of heatresisting porous material, e.g. ceramic material. A deflector 11 guides the gases round the outer filter and shields it from direct impact of the gases. The outlet tube 12 extending from the interior of the inner filter may be integral with the casing.
Patent GB-1147911-A (GB)
Title: Improvements relating to idler rollers for belt conveyors
Inventor: WALKER THOMAS
IPC: B65G39/09
Filed: 1967-03-21
Abstract: 1,147,911. Rollers for belt conveyers. MINING ENG. CO. (MECO) Ltd. 20 March, 1968 [21 March, 1967], No. 13162/67. Heading B8A. [Also in Division F2] A bearing assembly for a belt conveyer idler roller comprises a bearing housing 11, a housing cap 14 and a seal housing 15. The seal housing, which is a press fit on a stationary spindle 13, carries a felt or like washer 23 and has an extension 24 received in an axial opening 21 in the cap 14. Grease or other lubricant is contained within annular spaces 25, 27, 28 but additional lubrication may be provided from a grease nipple provided at the outer end of the spindle and connected to a radial port or ports in the spindle by an axial passage. The cap 14 is welded to the housing 11 which is itself welded to a steel shell 10. The felt washer may be secured to the cap 14 and be in rubbing engagement with the seal housing 15.
Patent GB-475044-A (GB)
Title: Improvements in or relating to surfacing machines
IPC: C14B1/44
Filed: 1936-05-09
Abstract: 475,044. Leather - working machines. DUREX CORPORATION. May 9, 1936, No. 13211. Convention date, May 11, 1935. [Class 76] [Also in Group XXIII] A surfacing machine for leather and like material comprises an abradant drum, a feed roller which is supported so that each end is individually movable towards and from the drum against a resistance and a second rotatable roller which receives the thrust of the feed roller. A drum 30, e.g. one covered with helically wound abrasive paper, is mounted on a shaft 27 driven through a clutch by an electro-motor. Slides 35 having depending flanges 36 are mounted on slide ways on each side of the frame of the machine and are connected by slotted bell-crank levers 41 and links 45 to weighted levers 46 which are connected together by a foot bar 53, by pressure on which the slide may be moved away from the roller 30. Each slide carries on a vertical pivot a bearing 60 for the shaft of a roller 62 which is by this construction enabled to yield at either end in accordance with variations in the work. The roller 62 is rotated through belt gearing at a slower speed than the roller 30. A feed table 80 is mounted adjacent to the roller 62. A pinch roller 85 is journalled adjacent to the roller 62 in arms 88 pivotally mounted in standards 91 laterally adjustable on bolts 92a. Fine adjustment of the roller is provided by adjusting screws 94 and locking screws 98. Hides treated by the drum are delivered on to a series of bands passing over rollers 107, the rotation of which may be reversed to deliver the hides at either side of the machine. Air-blast nozzles 121 are provided to strip the hides from the drum. Wires 127, 130, connected to the frame and having metal fibres projecting therefrom, are provided for discharging static electricity from the drum and roller 62. Dust is collected by a funnel 135 connected to a suction device. Means is provided for removing dust from the abrasive surface of the drum comprising a tube 140, Fig. 6, having a number of fine jets, connected to a source of high pressure air by a flexible tube 161 and caused to reciprocate along the length of the drum by a link 154 and crank 155 actuated by worm gearing 148, 149. Specification 475,043 is referred to.
Patent GB-132143-A (GB)
IPC: B66C21/00
Abstract: 132,143. Huntley, J. H. Dec. 30, 1918. Overhead travellers and transporters. - In overhead transporters in which the load is hoisted and transported by a single rope, the usual stops m, n fixed to tho track a are provided with pivoted latches 5, s for engaging the trolly b, and the latch 5 is engaged by a cam 4 fixed to a starwheel 3 which is rotated step by step by the trigger 2 during successive movements of the trolly towards the stop m. The latch 5 engages the upper end of a pivoted arm 7 which moves between stops placed a sufficient distance apart to permit the disengagement of the pivoted catch hook p from the lifting-hook h when the latch 5 is engaged and the hoisting-rope d is slackened. The arm 7 is connected to the hook p by a link 11, and is acted on by a spring q which normally maintains the hook p in position to engage the hook h. The latch s engages a bar r, and is disengaged by the upward movement of a slide t caused by slightly raising the hook h above the position shown. On the downward run, a projection 13 on the latch s engages a lug 12 on the hook p and effects the disengagement of the hook h. If the track is not inclined, the trolly is moved towards the right by a weight connected to it by a rope.