baber/WOPTO huggingface dataset:
Patent GB-1059241-A (GB)
Title: Improvements in or relating to the manufacture of ammonium sulphate from methyl methacrylate plant effluent
Inventor: ADAMS MICHAEL JOHN
IPC: C01C1/242
Filed: 1965-01-13
Abstract: Ammonium sulphate is produced by treating the effluent from the manufacture of methyl methacrylate with ammonia and a diluent, decolorizing with a carbon slurry, passing through a continuous vacuum filter coated with a filter aid, and evaporating to dryness. Gaseous or aqueous NH3 may be used.  The diluent may be water or dil. aqu. NH3.  A rotary drum filter coated with diatomaceous earth may be used.  Part of the filtered liquor may be recycled to make up the carbon slurry, or used to wash the carbon on the filter.  The carbon used may be activated charcoal of particle size not above 600m . Spent carbon is removed from the filter, and part may be regenerated on a second filter by washing with hot water, and is then recycled after mixing with fresh carbon.  The initial effluent is said to contain 34-36% H2SO4 and 24-26% NH4SO4, and is produced by reacting acetocyanohydrin with sulphuric acid.
Patent GB-967226-A (GB)
Title: Steam generating unit
IPC: F22G5/04
Filed: 1963-01-14
Abstract: 967,226. Regulating steam temperature in boilers. RILEY STOKER CORPORATION. Jan. 14, 1963 [Jan. 23, 1962], No. 1554/63. Heading F4A. In a steam generator comprising a vertical combustion chamber fired by burners located in the lower part thereof and having an upper outlet to a pass locating a convection superheater, superheat temperature is maintained at a desired value over a range of loads by regulating means associated with the burners and effective at low loads to cause the burner gases to be concentrated adjacent the centre of the chamber and at high loads to cause them to be diffused across the chamber thereby respectively shortening or lengthening the gas residence time in the chamber, whereby the tendency for the superheat temperature to be low at low loads and vice versa is corrected. In the form shown, the boiler has an upright, tube-lined combustion chamber 11 with an upper outlet 31 to a downpass divided by a baffle 33 into a passes 34, 35 respectively containing a convection reheater and a convection superheater, the gas flows through the passes being controlled by proportioning dampers 36, 37. At the lower part of the combustion chamber opposed abutments 48, 49 project above a high temperature cell 89, a row of burners 51, 52 being respectively mounted along the undersides of the abutments 48, 49. Upper and lower air directing vanes 55, 57 and 56, 58 are associated with each burner. Signals representative of load and reheat and superheat temperature are received by a controller 64. At low loads, Fig. 2, when the superheat temperature would otherwise be below the preset value the controller moves the air vanes 55 . . . 58 to the positions shown to concentrate the burner flames in the centre of the cell 89 whence the main stream of combustion gases flows up through the central part of the chamber 11 and passes over pendent superheaters 43, 44 and a pendent reheater 47 and downwardly in the passes 34, 35 at a high temperature. At high loads the controller sets the air vanes of the burners in each row alternatively upwardly and downwardly, Fig. 3, whereby the main stream of gases is diffused across the chamber 11, increasing the residence time of the gases therein to lower their temperature before they reach the steam heating surfaces. The controller also makes correcting adjustments to the dampers 36, 37 and the water injection rate to an interstage desuperheater 95.
Patent GB-655059-A (GB)
Title: A portable ripping platform for mining
IPC: B61J1/10
Filed: 1948-03-10
Abstract: 655,059. Conveying material. CAINE, J. E., and BEAUMONT, C. March 10, 1948, No. 1661. [Class 78 (iv)] [Also in Groups XXI and XXXII] A portable ripping platform comprises a wheeled chassis 1 on which is placed H-section girders 5 that support steel sheets 6-9 of which the sheets 8, 9 can be bolted together to form a single sheet. In use, the platform is raised clear of the track on blocks and the roof blown down on to the sheets. The debris is tipped on to the sheet 7 as the sheets 6, 8, 9 pivot about their loose connections with girders 5 when these sheets are hoisted or jacked up. The sheets and girders can then be tilted in a direction at right angles to that of tilting the sheets 6, 8, 9 to deposit the debris on to a conveyer.
Patent GB-1122942-A (GB)
Title: 1,2,3,6-tetrahydropyridines and processes for their production
IPC: C07D213/51
Filed: 1966-01-14
Abstract: Tetrahydropyridine derivatives of the formula <FORM:1122942/C2/1> wherein R1 represents a C1- 12 alkyl radical, a C3- 5 alkenyl radical, the cyclopropymethyl radical or a C7- 9 phenylalkyl radical; R2 represents hydrogen or the methyl radical; and R3 represents a C1- 4 alkyl radical, the phenyl radical or a C7- 9 phenylalkyl radical; and their salts with inorganic or organic acids are obtained by partially reducing pyridinium compounds of the formula <FORM:1122942/C2/2> wherein R4 and R5 are each lower alkyl radicals or together represent a lower alkylene radical and X- represents a monovalent anion or the normal equivalent of a polyvalent anion, solvolysing the tetrahydropyridal ketals produced and, if desired, converting the products into salts with inorganic or organic acids. The pyridinium compound used may be obtained by reacting the hydrochloride of a 4-pyridyl ketone with an hydroxy compound, e.g. ethylene glycol, and quaternizing the 4-pyridyl ketal produced with an ester R1X.  Therapeutic compositions, having antitussive and analgetic properties, contain as the active ingredient the above tetrahydropyridine derivatives or their pharmaceutically acceptable salts. The analgetic composition may be in a form suitable for oral or parenteral application.
Patent GB-413685-A (GB)
Title: Improvements in electric incandescent lamp holders combined with thermal switches for intermittent flashing
IPC: H01R33/94
Filed: 1933-01-19
Abstract: 413,685. Electric - lamp holders. COLLIER, R., 1, Elm Park Road, South Norwood, London. Jan. 19, 1933, No. 1792. [Class 39 (ii).] In an electric incandescent lamp holder, adapter, or plug coupling provided with a resistancewound bimetallic strip for producing intermittent flashing, the bimetallic strip 12 is attached at one end, together with a conductive arm 17, to one of the lamp holder plungers or contacts 7, the other ends of the members 12, 17 being normally separated at their free ends to provide a thermal switch adapted to short circuit the resistance which is connected across one plug contact 4 and the junction of the plunger 7 and arm 17. The resistance winding is insulated from the bimetallic strip, which does not serve as a current conductor. The adapter comprises a body portion 1, preferably made of moulded insulating-material, with a metal bayonet-joint socket 8 secured in its lower end. An insulating-disc 6 carrying the contact plungers 7 is secured in position by a screw 20 entering the rear end of the plunger mounting, the head of the screw forming one of the plug contacts 4. A contact point 19 is provided on the free end of the arm 17 to co-operate with a contact cap or band 13 which is connected to the resistance winding and, by a short flexible wire 14, connected to a plug contact 4. In a modification the bayonet-joint socket is replaced by a pair of enclosed terminals to which a flexible conductor supporting a lamp holder may be attached.
Patent GB-555301-A (GB)
Title: Improvements in or relating to gas cookers
IPC: F24C15/10
Filed: 1942-02-12
Abstract: 555,301. Hot-plate stoves. HERMANN, R. Feb. 12, 1942, No. 1862. [Class 126] A substantially imperforate cast-iron heated plate 10 to receive a cooking utensil is formed with integral depending fins, ribs, or studs 12, 13 having solid or tubular insets 14 of copper, aluminum, or other metal of high heat conductivity. The ribs or studs may be radial, spiral, cranked or otherwise arranged to distribute the heat from the burner 16 uniformly over the plate surface. The plate may be supported by a ring 15 as as to be flush with or above the cooker top 18, a gap 17 being preferably left to prevent direct conduction of heat. The inserts may be cast into the plate or pressed down or screwed in holes drilled from the upper or lower surface of The plate. The holes are closed by welded steel plugs. The bores of the holes may be of larger diameter around the lower part of the inserts to form annular spaces which are partially filled with sodium or a metal alloy or salt of high heat conductivity having a lower melting point than the normal working temperature of the plate. When cast on the plate the copper or aluminium may be inserted in the.mould as powder which becomes sintered by heat. Fig. 14 shows a hot plate made of a flat cast iron upper plate having shallow ribs or studs 53 on its under surface and a lower plate formed with radial ribs 56 having hollow parts 57 containing sodium 59 and blocks 58 of copper and aluminium. The flanges 52, 54 on the plates are secured together by screws 61 and then welded together at 62, a sealing washer 60 heing provided between engaging surfaces. In another construction the hot plate consists of powdered iron and copper sintered together without pressure, powdered iron being placed in the mould first and then a mixture of iron and copper, the proportion of copper progressively increasing until the upper surface consists of copper alone.
Patent GB-659617-A (GB)
Title: Textile print blankets and the like
IPC: B41N10/04
Filed: 1949-01-24
Abstract: 659,617. Compound fabrics. DEWEY & ALMY CHEMICAL CO. Jan. 24, 1949, No. 1924. Convention date, May 1, 1948. [Classes 42 (i) and 140] An endless print blanket composed of a number of rubber-coated textile fabric plies, has the ends of the top ply, and optionally some or all of the lower plies, butt jointed along a line of interfitted V's having bases which are small fractions of the width of the blanket, and lengths which are at least twice the base dimension, the blanket being vulcanized into a unitary structure. The bases of the V's may be about half-an-inch, and their altitude one inch or more. The butt joints of the various plies 11 are staggered along the length of the blanket 10, and the joint in the top ply 14 may be prepared by overlapping its ends 12, 13 on a striking plate, and cutting through them with a knife or guillotine, the edge of which is in the form of a series of long V's after which the ends 15, 16 are interfitted and the assembly cured under pressure. The joints between some or all of the lower plies may be made similarly. The term "rubber" includes natural and synthetic rubber and other elastic organic polymers used as rubber substitutes.
Patent GB-1040401-A (GB)
Title: Treatment of skins and hides
IPC: C14C1/00
Filed: 1965-01-15
Abstract: In a process for softening, dehairing and bating skins and hides, they are subjected, e.g. at a pH between 5 and 10, to the action of at least one proteolytic enzyme and are also treated, before during or after said enzyme action, with hdrazine, e.g. hydrazine hydrate, or a hydrazonium salt, e.g. hydrazonium sulphate.  Enzymes derived from micro-organisms, such as fungal proteases from Aspergillus parasiticus and Aspergillus flavas or bacterial proteases from Bacillus subtilis, are suitable.  Enzymes derived from animals, such as pancreatic trypsin (pancreas tryptase) may be used.  In Example 7, protease from Bacillus subtilis and pancreas tryptase are used for dehairing softened ox hides.  In Example 13, pancreas tryptase and protease from 'Aspergillus flavus are used for bating alkaline-limed goat skins. The proteolytic enzyme may be used in the presence of carbohydrases (Example 4), or in the presence of one or more than one of the following salts: ammonium sulphate, sodium bisulphite, sodium chloride and soda.  In Example 2, phthalimide is present during dehairing and softening of ox hides. In dehairing skins or hides, they may be soaked in an aqueous solution of hydrazine or a hydrazonium salt, and the proteolytic enzyme may then be added without further addition of water.  In softening and dehairing skins or hides, between 0.25 and 1.25%, of hydrazine or hydrazonium salt may be used, computed on the weight of the skins or hides.  In bating skins or hides, between 0.025 and 1.0% of hydrazine or hydrazonium salt may be used.
Patent GB-271535-A (GB)
Title: Improvements in or relating to machines for operating upon the heel ends of boot and shoe soles
IPC: A43D8/34
Filed: 1926-01-22
Abstract: 271,535. Gimson Shoe Machinery Co., Ltd., and Bagshaw, C. M. Jan. 22, 1926. Bevelling and splitting machines.-Relates to machines for shaping heel seats on soles for boots and shoes, of the kind in which the heel end of the sole is temporarily deformed by a plunger cooperating with a U-shaped plate while a skiving knife cuts a horse-shoe shaped trimming which is afterwards severed, and consists in cutters, for severing the trimming, adjustably supported in adjustable bearings, the cutter spindles being actuated by the operator's hands while he maintains the sole deformed by a treadle. The skiving-knife serves as a guard to protect the sole from injury by the severing-cutters. All the knives are operated by hand-levers, and the whole operation is performed without altering the position of the sole in the machine. The heel end of a shoe on a last is positioned by an end gauge 54, Fig. 2, and side gauges 53, which gauges may be adjustable. The rear end of the sole is placed over the slot in a U-shaped plate, and deformed by a die 10 on a plunger 11 normally kept raised by a spring 13 but depressed by a lever 19 connected by links and levers to a treadle rod 14. A skiving-knife 26 engaging the under side of the U-shaped plate, is operated by a hand-lever 28 to form a more or less horse-shoe shaped cut at the rear end of the deformed sole. An adjustable stop determines the inner limit of travel of the skiving-knife. To sever the horse-shoe shaped trimming, knives 50 are carried on spindles in bearings adjustable to determine the angle of the cut in relation to the general plane of the sole, the spindles being adjustable about their longitudinal axes to determine the angle of the cut with relation to the longitudinal median line of the sole. The bearings are clamped in adjusted position by bolts 73 movable along arcual slots in brackets on either side of the machine head. The spindles are each provided with elongated teeth gearing with teeth on each side of a member 69, Fig. 3, clamped in adjusted position, longitudinally of the machine, by a bolt 71. The spindles are urged to their upper positions by springs and are depressed, to make the severing cut, by snail cams on a spindle having an operating handle 65, Fig. 2. When the machine is to act on sole blanks, the gauges 53, 54 are replaced by gauges above the U-shaped plate. In a modified machine, Fig. 6, the severing-knives move horizontally, their bearings being adjustable about a point on the longitudinal median line of the sole by a clamping bolt 33. The cutters may be adjusted about the axes of their operating spindles 39, which are reciprocated, to make the severing cut, by hand-levers 42. A fore-part gauge 56 is carried on an arm pivoted between ears 58 on the frame. According to the Provisional Specifications, the knives 50 may be angularly-adjusted by a screw or a pair of links, they may swing or rotate as they descend, to make a slicing cut, and the gauge 56 may be adjustable.
Patent GB-1204762-A (GB)
Title: Process for the production of accurately dimensioned mouldings
IPC: B29C45/46
Filed: 1968-01-12
Abstract: 1,204,762. Injection moulding. ANKERWERK NURNBURG G.m.b.H., and FARBENFABRIKEN BAYER A.G. 12 Jan., 1968, No. 1978/68. Heading B5A. Polyamide mouldings are produced by feeding a lactam or a mixture of lactams, an alkaline catalyst and an activator to an injection cylinder, subjecting them in an admixed condition to a temperature to effect polymerization to produce moulding material, melting the material in the cylinder, forcing the polyamide melt thus obtained from the cylinder directly or indirectly into a mould and causing it to solidify under pressure in the mould. In Fig. 1, the injection cylinder 10 includes regulable heaters 14, 15, and a worm 11 rotated by a motor 12 and axially reciprocated hydraulically by a piston 27. The ingredients are supplied from heated reservoirs 19, 20 and via heated flow regulating devices 23, 24. The material polymerized in the cylinder is forced by the worm into a cooled mould 6. In Fig. 2, a heated reservoir 40 contains all the ingredients in powder form and the material is fed from the injection cylinder to a heated cylinder 33 from which it is forced into a mould 6, 7 by an hydraulically driven piston 35. In a further embodiment the injection nozzle feeds the material into a two-part mould at the separation plane of the mould halves, the latter being relatively movable by a toggle lever system.
Patent GB-279286-A (GB)
Title: Means for stropping safety razor blades or the like
IPC: B24D15/08
Filed: 1927-01-24
Abstract: 279,286. Gaisman, H. J. Jan. 24, 1927. Stropping-apparatus.-Razors and stropping- machines of the kind in which the blade 10 is carried by a holder 9 on a, shaft 5 which is automatically oscillated by reversal of movement of the device along the strop 6 to bring the blade to trailing position, have the shaft 5 carried by a frame 2 which can rock with respect to the handle 11, so that the first action when movement is reversed at the end of the stroke is to tilt the frame, thus lifting the edge of the blade from the strop to prevent it from cutting the strop before rotation of the shaft 5 becomes effective. The razor shown is of known type in which shaft 5 and a strop-engaging countershaft 5 are geared together by pinions 7, 8 and are journaled in upstanding lugs 3 of the frame 2. The transverse portion of the frame has an orifice 12 with depressed seats 14 at opposite edges which receive pivot lugs 13<a> of a member 13 (shown separate, Fig. 8).Member 13 is retained in place by a member 15 below the frame and' having upstanding pins 16 passed through member 13 and riveted over. The handle 11 screws into a boss on member 15. The guard, provided with hooks 19 for engaging the edge of the blades in shaving position, is pivoted to the frame 2 by lugs 21 and rivets 22 and has an extension loosely embracing the handle and forming a finger-piece 23 by which the guard may be moved. The guard has a projection, not shown. which, when in the shaving position, bears against member 13 and prevents relative movement of the frame and handle.
Patent GB-379610-A (GB)
Title: Improvements in and relating to systems for signalling the positions of electric switches electrically
IPC: H02B1/24
Filed: 1932-01-22
Abstract: 379,610. Electric signalling systems. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Jan. 22, 1932, No. 2069. Convention date, Jan. 22, 1931. [Class 40 (i).] In a system for indicating by a pair of lamps C, O at a supervising station the position of a switch, at a remote station, the lamps are connected in circuit with a switch 2 which is adapted to control order lamps E, A at the remote station and simultaneously alter the connections of the lamps C, O so that the indicating lamp for the previous position of the switch 1 continues to burn steadily while the lamp corresponding to the fresh switching condition flickers until the order is carried out. The lamps C, O are arranged in a luminous circuit diagram and the order switch 2, which also acts as a position indicator, is arranged in a non-luminous circuit diagram. As shown, the connections are such that the lamp O is lighted continuously over auxiliary contacts 1c, 1d from the mains V2, V3. When an order to close the switch 1 is to be transmitted, switch 2 is operated through 90‹ to connect lamps C, E in series over contacts 1b, 3, the lamps being flashed by an interrupter U. The lamp O is maintained lit over contacts 1c, 1d. When the switch is closed, auxiliary contact 1b opens the flashing circuit and together with contact 1a closes a circuit for lighting the lamp C continuously. Contacts 1c extinguishes lamp O and prepares the flashing circuit for lamps O, A. In a modification, the lamps C, O are operated by multi-contact relays which are contolled by the switch 1. This arrangement reduces the number of line wires between the stations.
Patent GB-437775-A (GB)
Title: Apparatus for manufacturing strips and other articles of rubber or celluloid
Filed: 1935-01-22
Abstract: <PICT:0437775/IV/1> Strips of celluloid are manufactured by applying a solution to one side of a longitudinally-moving pliable band 1, a transverse cavity 8, acting as a container for the solution, being formed in the band either by means of a pair of spaced rollers 2 lying on the lateral marginal portion of the band, or by means of fixed semicircular side pieces, the rollers or side pieces forming the end walls of the cavity.  The band 1 may be endless, may be engraved, may be provided with more than one cavity 8 and may pass through one or more heating chambers 7 in which the solvent is evaporated.  The strips may be formed by the deposition of one or several layers, and when formed are stripped from the band.
Patent GB-1455651-A (GB)
Title: Spin drier
IPC: D06F49/00
Filed: 1974-01-16
Abstract: 1455651 Spin driers CALOR 16 Jan 1974 [12 Feb 1973] 02109/74 Heading F4G [Also in Division F2] A spin drier has a rotary drum housed within an enclosure 1 closed by a cover 2, a pedal 4 which when actuated causes through opening a switch 24 via a pivoted T-shaped tab 20 and preferably a brake stopping of the drum and through a system of rods 3 unfastening of the cover 2. The leg 20a of the T-shaped tab 20 is operatively connected to a tongue 26 which is moved by the tab 20 in actuation by the pedal 4, reverse movement of the system of rods 3 on closing the cover pivoting the tab 20 through the tongue 26 to close the switch 24. The tab 20 on actuation of the pedal 4 is pivoted by a cam 16. The system of rods 3 comprises upper and lower rods 7, 8 which interfit at 9 the lower rod 8 being actuated by the pedal through a buffer spring 14. A hook 36 which causes the fastening of the cover 2 is pivotally mounted and actuated by the system of rods 3 through a spring-loaded dashpot arrangement 38.
Patent GB-1368156-A (GB)
Title: Process for the manufacture of artificial manganese dioxide
IPC: C01G45/02
Filed: 1972-01-17
Abstract: 1368156 Artificial manganese oxides KNAPSACK AG 17 Jan 1972 [29 Jan 1971] 2119/72 Heading C1A Artificial manganese oxides (in which the manganese has a valency between 3 and 4) having an apparent density of 0À8-1À20 g/cc., and suitable for use in a battery, are prepared by precipitating the oxides from an aqueous solution of a manganese (II) compound and a watersoluble hypochlorite and an alkali, the pH being maintained at at least 8À0 during and following the precipitation, filtering and washing the precipitate with a non-reducing acid at a pH of less than 2 until free from alkali, and finally filtering and drying the precipitate at a temp. of 100-350 C. The precipitate may optionally be washed and pre-dried at a temp. of 100-250 C. to give particles having a size of 160 Ám., and then washed again with the non-reducing acid at a temp. of less than 60 C. The starting solution may contain manganese sulphate, sodium hypochlorite and sodium hydroxide, the manganese sulphate being preferably added to an alkaline hypochlorite solution. The wash acid may be sulphuric or nitric acid.