baber/WOPTO huggingface dataset:
Patent GB-1184343-A (GB)
Title: Improvements in or relating to the Cropping of Billets
Inventor: ORGAN ALAN JOHN
IPC: B23D15/00
Filed: 1966-03-31
Abstract: 1,184,343. Shearing. NATIONAL RESEARCH DEVELOPMENT CORP. 29 June, 1967 [31 March, 1966], No. 14297/66. Heading B3W. An apparatus for cropping a billet O comprises a support F co-operating with a moving member M to shear the billet and the moment of inertia of the bar which overhangs the support F is selected or adjusted or alternatively the speed Vp of the member M is selected or adjusted so that the severing of the billet is completed in a time less than or substantially equal to half the period of oscillation of the overhanging part of the billet. In one embodiment the moment of inertia is adjusted by a movable weight A which may be guided by guides G. The amplitude of oscillation is restricted by a spring R and the oscillations damped by a damper D. For a short overhang the weight is spring biased against the bar, Fig. 6 (not shown). An adjustable gauging stop S is provided and the period of oscillation determined from the length of the billet, the moment of inertia, the density and the elasticity. The weight A is not necessary if the half-period of the bar above is larger than the severing time. The cropping may be performed by highenergy machines, e.g. the "Petroforge". The billet may have circular or rectangular crosssection.
Patent GB-1462427-A (GB)
Title: Communications satellite
IPC: H04B7/204
Filed: 1974-04-01
Abstract: 1462427 Communications satellite POST OFFICE 1 April 1974 [30 March 1973] 14304/74 Heading H4K A T.D.M.; S.D.M. communications satellite includes a switching matrix 20 for selectively connecting receivers R0 to R15 to transmitters T0 to T15, and input switching means 22 and output switching means 24 both synchronised with operation of the matrix and serving to concentrate connections to be effected between receiving and transmitting antennae Z15 to Z18 on to receivers and transmitters R15 and T15. As described the same antennae are used for both reception and transmission. The input switching means 22 may be a diode microwave switch and the output switching means 24 a magnetic latching microwave switch. The system is controlled by a clock comprising an oscillator and a frequency divider which during one time interval in each frame selects one of the transmitting antennae Z15 to Z18 to receive a synchronizing signal, all transmitting antennae Z0 to Z14 directly connected to the switching matrix receiving a sychronizing signal during every frame. The distribution control unit 28 includes a control memory storing two data words for each of a set of 124 time units of a frame. The first word for each unit comprises 64 bits, i.e. 16 four bit sub-words identifying sequentially the transmitters TO to T15 to be connected to receivers R0 to R15 taken in that order. The second word for each unit comprises 2 two bit sub-words identifying which input and which output antenna in the group Z15 to Z18  is to be used for reception and transmission respectively.
Patent GB-1048923-A (GB)
Title: Cooling devices for electronic components and a method for making the devices
IPC: F28F1/26
Filed: 1963-04-10
Abstract: 1,048,923. Cooling transistors. INTERNATIONAL ELECTRONIC RESEARCH CORPORATION. April 10, 1963 [Sept. 12, 1962], No. 14311/63. Heading H1K. Transistor cooling enclosures of similar or different forms each comprising a base with a plurality of fingers upturned from it are made by slitting a strip of heat conductive material to form a plurality of fingers extending from its lateral edges, cutting the strip to desired sizes and bending the fingers to form the walls of enclosures. A typical enclosure (Fig. 2) is completed by bending further fingers from the centre of the strip, and some of the fingers may be bent to form mounting brackets (Figs. 4 and 5, not shown). Cooling may be improved by using a plurality of enclosures in nested formation, as in Fig. 8 (not shown), where a common outer enclosure accommodates enclosures associated with individual transistors. The strip material may be coated e.g. with a dispersion of molybdenum disulphide powder in synthetic resin for insulation purposes and the insides of any mounting holes formed in it similarly coated.
Patent GB-1076719-A (GB)
Title: Rail plate for railroad track structures
Inventor: MOSES NELSON KAY
IPC: E01B9/36
Filed: 1965-11-11
Abstract: 1,076,719. Chair plates. RAILROAD PERMANENT WAY PRODUCTS CORPORATION. Nov. 11, 1965, No. 14328/66. Divided out of 1,076,717. Heading E1G. A chair plate particularly for use with a rail seat and rail clips is of sufficient area to cover the seat and clips and has spaced upward flanges to engage the outermost portions of the rail clips. The plate may be located in a recess in the sleeper and have securing bolt holes in addition to the clip bolts or may have additional longitudinal flanges to contact the rail or rail seat and prevent rotation during assembly.
Patent GB-514707-A (GB)
Title: Improvements in and relating to the bundling of fibre and to the manufacture of articles from bundled fibre
IPC: B65H81/08
Filed: 1938-05-13
Abstract: 514,707. Paper &c. covered slivers of sisal, &c. CHRISTIE, F. M. May 13, 1938, No. 14329. [Class 120 (iii)] [Also in Groups XXV and XV] Relates to the bundling of sisal &c. fibre by winding strip material upon it under tension. The raw fibre, opened and combed into slivers, is fed forward through a funnel 7 surrounded by a rotary trunk 5 which carries a plate 6. A tube is formed around the fibre by winding upon it strips of paper fabric &c. carried by one or more rotary and adjustable reels 11. The paper &c. is preferably previously gummed and on its way to the fibre is moistened by a felt coated roller and tube conveving moisture from a tank 16. The product is hauled off bv contoured draw rolls 27 and by a pair of chains 24 each carrying a series of semicylindrical clasps 25 of a size to embrace and grip the packed tube of fibre. Spring-pressed rollers 26 spaced at intervals press the adjacent lengths of chain 24 towards e ch other. Bundles of fibre of small diameter can be used for the manufacture of brooms, being inserted in holes in a broom head and suitably secured after which the surrounding paper &c. may be removed. The bundles, cut into short lengths, assembled side by side, compressed laterally and bound by a steel &c. rim may also be used in the manufacture of dart boards.
Patent GB-458016-A (GB)
Title: Improvements in intaglio printing machines
IPC: B41F31/07
Filed: 1936-05-21
Abstract: 458,016. Intaglio printing-machines. DRESDEN - LEIPZIGER SCHNELLPRESSEN-FABRIK AKT.-GES:, Coswig, near Dresden, Germany. May 21, 1936, No. 14390. Convention date, May 22, 1935. [Class 100 (ii)] Inking-apparatus.-In a rotary intaglio printing-machine in which the doctor is carried by the ink duct, the duct is detachably connected to the machine frame so that it can be removed together with the doctor to facilitate exchange of the printing cylinder. The duct 4 is provided with side rails 5 engaging inclined guide grooves in blocks 3 secured to the frame and, when inserted in position is first held by turn buttons 11 turned to engage over lugs 30 on the duct and finally fixed by screws 10. The duct has a filling chamber extension 7 also provided with an emptying port 8 normally closed by a plug 9. The doctor blade holder plates 14, 15 are fixed to members 16 secured to a shaft 17 in bearings 12 detachably secured to the duct and the shaft 17 is reciprocated axially by a crank and connecting-rod which is connected by a disconnectible coupling to a reduced extension of the shaft 17.
Patent GB-719545-A (GB)
Title: Improvements in or relating to plasticizers for cellulose esters
IPC: C09D101/12
Filed: 1951-06-18
Abstract: A lacquer, especially a cable lacquer, comprises a solution or dispersion of a cellulose ester, especially acetyl cellulose, in a solvent comprising an ester formed from one mole of adipic acid and two moles of a glycol.  Preferably a polyethylene glycol, in particular diethylene or triethylene glycol, is used and the esters may be improved by fully or partially blocking the free OH groups by etherifying or esterifying with alcohols containing up to 3 carbon atoms or fatty acids containing up to 4 carbon atoms. The resulting esters may be used as softeners for plastic masses, films and the like of cellulose esters, especially for acetyl cellulose.  They are compatible with the usual solvents for acetyl cellulose and form with these solvents lacquers which are useful as cable lacquers.  In the examples a cable lacquer is obtained by (a) mixing the ester obtained from adipic acid and diethylene glycol with acetyl cellulose and dissolving the mixture in a suitable lacquer solvent such as a-mixture of acetone, ethyl acetate and methanol; (b) mixing the triethylene glycol ester of adipic acid with acetyl cellulose dissolved in a mixture of acetone, tetrahydrofurfuryl alcohol and ethanol, and diluting with benzol; and (c) mixing a product, obtained by treating glycol adipic acid diester with acetic anhydride, with acetyl cellulose dissolved in a mixture of acetone, methanol, methyl acetate, benzol and methylene chloride.  Similar lacquers may be obtained by using the adipic acid ester of technical methyl polyglycol ether instead of the esters specified in the above examples.ALSO:Esters formed from one mole of adipic acid and two moles of a glycol, especially a polyethylene glycol, are used in the preparation of lacquers.  The glycol is preferably diethylene or triethylene glycol.  The esters may be im proved by fully or partially blocking the free OH groups by etherifying or esterifying them preferably with aliphatic alcohols containing up to 3 carbon atoms or with fatty acids containing up to 4 carbon atoms.  In the examples: (a) adipic acid is esterified with diethylene glycol; (b) adipic acid is esterified with technical triethylene glycol; (c) glycol adipic acid diester is treated with acetic anhydride; and (d) adipic acid is esterified with technical methyl polyglycol ether (produced by a partial methylation of technical polyethylene glycol).
Patent GB-383899-A (GB)
Title: Improvement in or relating to continuous annealing furnaces
IPC: C21D9/56
Filed: 1932-05-21
Abstract: 383,899. Annealing metal strip. JUNKER GES., O., Lammersdorf, Monschau, Germany. May 21, 1932, No. 14455. Convention date, June 18, 1931. [Class 72.] In apparatus for annealing metal strip of the kind in which the strip is freely suspended between rollers B2, B3, and a predetermined tension is maintained therein by a brake device operated automatically by variations in the tension, the brake is arranged to act directly on the strip itself. As shown, the brake comprises rollers D of which the lower one is supported in fixed bearings while the upper one is mounted on an arm F pivoted at E and carrying a " feeler " roller G engaging the strip A. The tension to be maintained in the strip is adjusted by varying the position of a weight H slidably mounted on the arm F. A friction or drag brake may be used instead of the rollers D, while the " feeler " G may be arranged to actuate the brake electrically instead of mechanically. When several strips are passed through the furnace simultaneously, the brake mechanism is subdivided transversely so that the tension in each strip is regulated separately.
Patent GB-311342-A (GB)
Title: Improvements in or relating to machines for the mechanical extraction of bast from stalks of plants such as ramie, jute and mallows
IPC: D01B1/14
Filed: 1929-05-09
Abstract: 311,342. Naamlooze Vennootschap Delta Maatschappij voor Commercieele en Industrieele Financiering, (Assignees of Einstein, M., and Hollmann, G.). May 9, 1928, [Convention date]. Decorticating ramie, jute, &c.- In a machine for treating the stalks of plants, such as ramie, jute, or mallows, in which the stalks are split and spread out, and the inner portion broken and separated from the bast, the tools for breaking and stripping being so arranged that they do not come into contact with the bast, the stalks are fed from a table 1 by fluted rollers 2 and passed by plain rollers 3, 4 to a vertical splitting knife 5 adjustably mounted in a bracket 6. The knife is provided with an extension 22, which flattens out the split stalk, which is passed by rollers 23 to a plate 37 on which it is held by a member 31. A rotary member 40 carrying bars 28 which break the inner material of the stalk, and scrapers 29 which remove this material then operates on the stalk, and the bast is drawn away by rollers 38, 39. The feeding and guiding rollers and the member 40 are all driven in unison by a single chain 50. The plate 37 is carried by a spring controlled arm 32 and held in the correct position against a stop 35. Guides 9 confine the stalks between the rollers, and in front of the cutter they are held by rollers 12, carried by bell crank levers 15 and drawn together by a spring. A guide 10 with a spring lid 11 precedes these rollers. The upper rollers 2, 3, 4, 22 are carried by weight or spring controlled levers and are driven though ball or cardan joints.
Patent GB-802339-A (GB)
Title: Preparation of orthosilicates
IPC: C07F7/04
Filed: 1956-05-10
Abstract: Orthosilicates are prepared by heating silica with a saturated aliphatic monohydric alcohol in the presence of an alkaline catalyst, at a temperature of at least 100 DEG  C. and under sufficient pressure to allow heating at this temperature, and continuously removing water during the reaction.  Suitable catalysts are sodium, potassium and caesium hydroxides, alkoxides, silanolates and derivatives thereof which form alkoxides in the presence of alcohol. The silica is preferably finely divided, particularly as obtained by treating sodium or potassium silicate with sulphuric acid followed by dehydration in the presence of the alcohol.  A hydrocarbon solvent is preferably present during the reaction so as to form an azeotropic mixture with the water formed during the reaction, examples being benzene, toluene, xylene and cyclohexane.  After removal of the water, the alcohol-solvent mixture may be recycled.  The examples describe the preparation of (1) ethyl orthosilicate, the reaction vessel being pressurized under 400 p.s.i. nitrogen and heated at 195 DEG  C. to 200 DEG  C. for 16 hours; (2) butyl orthosilicate; and (3) 2-butoxyethyl orthosilicate.
Patent GB-768095-A (GB)
Title: Improvements in and relating to anatomical models
IPC: G09B23/32
Filed: 1954-05-18
Abstract: 768,095. Educational appliances. BLAINE, G. May 17, 1955 [May 18, 1954], No. 14590/54. Class 146(2). An anatomical model in the form of a hospital-doll comprises a framework of rigid plastic impregnated fibre board units articulated together, a flexible skin e.g., of polyvinyl plastisol or latex, covering the units and permitting the doll to be moved into various positions, a mouth opening 13 and an anal orifice 14 in 'the doll, and an alimentary canal 15 extending therebetween. Additional openings e.g., gastrostomy, tracheotomy 18, ileostomy 21, nasal 16, aural 17, colostomy 20 and suprapubic may be provided. Interchangeable male and female internal and external genito-urinary organs may be detachably fastened into position. The passages of these organs conform in all essentials to the actual curvature and consistency of the natural passages so that e.g. the passing of a catheta into the bladder may be studied. A removable hollow pad may be attached to the model with the aid of which injections may be carried out.
Patent GB-611971-A (GB)
Title: Improvements in or relating to the securing of insulating terminal caps to the envelopes of electron discharge devices
IPC: H01J5/58
Filed: 1946-05-15
Abstract: 611,971. Cathode-ray tubes. COLBORNE, R. H. May 15, 1946, No. 14617. [Class 39 (i)] In an electric discharge device, such as a cathode-ray tube, in which a heat-curable adhesive is employed to secure the cap to the envelope, a high-frequency (10-20 mcs./sec.) electric field is used to heat the cement by dielectric losses. According to the Provisional Specification, if the cap is cylindrical the heating electrodes may be of arcuate form, conforming generally to the curvature of the cap.
Patent GB-542684-A (GB)
Title: Improvements in bunkers and like receptacles
IPC: B65D90/08
Filed: 1940-09-27
Abstract: 542,684. Coal bunkers. STANIFORTH, A. V. Sept. 27, 1940, No. 14634: [Class 20 (i)] A receptacle such as a coal bunker for storing corrosive or erosive solids such as coal or ash, is provided with a sectional non- corrosive lining adapted to allow for the expansion and contraction of the container. The lining is in the form of panels of cast iron, or cast iron lattice frames filled with concrete, and adjacent edges of the panels are secured together by cover plates 11 secured by clamps 13 to the wall 10 of the receptacle. The opposed edges of adjacent panels 7, Fig. 3, are provided with sloping surfaces 23 adapted to be engaged by the edges of the arched cover plates 11 which are provided with recesses 16 at their ends to receive tongues 15 on clamping plates 13, Fig. 5, each clamping plate having a recess in its upper surface to receive the nut 14 or the head of a securing bolt. The other edges of the clamping plates have bevelled surfaces to coact with corresponding surfaces on the other edges of the panels, which are, in the example shown, not covered by cover plates, but are formed with overlapping interlocking portions 18, 20, Fig. 2, which allow relative movement between the panels.
Patent GB-473157-A (GB)
Title: Improvements relating to protective means for electric circuit breakers
IPC: H01H9/10
Filed: 1936-05-25
Abstract: 473,157. Arc-rupturing in switches. ELLISON, Ltd., G., and ANDERSON, J. May 25, 1936, No. 14696. [Class 38 (v)] Protective means of the type comprising, in combination, a circuit-breaker and a relatively small fuse which is short-circuited when the breaker is closed and is brought into action only when the breaker opens, has the fuse electrically connected at one end to one of the fixed contacts of a double-break breaker and at the other to a movable bridging contact. The arrangement is such that when the breaker opens, the movable contact c is separated, by lowering, from the first mentioned fixed contact d after having been separated from the other fixed contact e. At the point when c is about to separate from d, normal-load arcs would have been quenched, and, as the fuse a is still shorted and does not therefore carry current, it can be relatively small. Fig. 3 shows c separated from both d and e, and if the arc has persisted the fuse blows. The fuse can alternatively be connected to the bridge c by a sliding contact, Fig. 4 (not shown), or, Fig. 5 (not shown), to a bracket which is insulatingly carried on d and pivotally supports the bridge c. The Provisional Specification states also that the fuse may have its own short-circuiting switch which is connected to the breaker by linkage.
Patent GB-660173-A (GB)
Title: Improvements relating to portable hermetic containers for articles requiring to be kept in an atmosphere at superatmospheric pressure
IPC: B65D81/20
Filed: 1949-06-01
Abstract: 660,173. Packing under special atmospheric conditions; containers. PIRELLI SOC. PER AZIONI. June 1, 1949 [June 19, 1948], No. 14747. Classes 66 and 94(i) [Also in Group XV] Articles such as tennis balls are stored in a container comprising a body part 1 and a closure member 2 fitted with a sealing ring 7 adapted to engage the body part, the member 2 being moved relative to the part 1 during the closing operation to decrease the internal volume of the container and cause a corresponding increase in the pressure of the air therein. The internal diameter of the ring is less than the external diameter of the part 1 so that the ring is distorted axially during the closing movement to provide an effective seal. The lower end of the member 2 is flared outwardly and its edge is spun over to provide an annular recess for the reception of a head on the ring. The closed position of the member 2 is detemined by spring clips 11 on the part 1 which engage over the rounded edge of the member. The part 1 is formed with a groove 10 which serves to reverse the inclination of the sealing ring and break the seal during the initial movement of the member 2 to open the container.
Patent GB-416475-A (GB)
Title: Improved process for treating cyanide solutions
IPC: C01C3/11
Filed: 1933-03-15
Abstract: <PICT:0416475/III/1> Cyanide and metal values are recovered from cyanide solutions which have been used for the extraction of precious metals and which contain free cyanide, alkali and precious and base metals in the form of complex cyanides, by a process which includes the step of treating the solution with a cuprous salt, the solution for this purpose being maintained substantially neutral or slightly acid.  The cuprous salt, e.g. cuprous chloride, is preferably employed in an excess, say up to 25 per cent.  Clear cyanide solution from an ore extraction is fed from a tank 1 into a vessel 3 where it is neutralized by treatment with sulphuric acid or sulphur dioxide and mixed with an excess of cuprous salt solution added by a pipe 4. This solution may be obtained by reducing copper sulphate with sulphur dioxide and metallic copper in the presence of sodium chloride or preferably may be returned from the process.  The precipitate is separated from the liquid in a filter 6, the liquid containing excess copper passing to a copper recovery plant 24.  The solids are removed at 8 and are treated in a still 9 with sulphuric acid, sodium chloride and steam, the hydrocyanic acid being absorbed in milk of lime in an absorption vessel 12 to form calcium cyanide for use in the extraction of more ore.  The slurry remaining in the still 9 is filtered in a filterpress 14, the solids being preferably washed with slightly acid brine to remove cuprous chloride.  The filter cake consists essentially of copper thiocyanate, gold cyanide and silver chloride and is roasted in a furnace 16, the thiocyanate being converted into oxide.  The solid product is then treated with dilute sulphuric acid, aqueous copper sulphate being formed and a sludge containing the gold and silver which may be worked up in known manner into bullion.  The clear copper sulphate solution is reduced by treatment with metallic copper and sulphur dioxide in a vessel 22 a portion being passed by a pipe 4 to the vessel 3 and the remainder passing to a vessel 24 where it is treated with scrap iron to recover metallic copper.  The reduced solution from the vessel 22 is acid and contains iron salt and is preferably treated with calcium carbonate, and filtered before it is returned to the vessel 3.
Patent GB-755841-A (GB)
Title: Improvements in or relating to rotors for axial-flow compressors and turbines
Inventor: KENT NELSON HECTOR
IPC: F01D5/30
Filed: 1953-05-27
Abstract: 755,841. Turbine and compressor rotors. ROLLS-ROYCE, Ltd. May 19, 1954 [May 27, 1953], No. 14824/53. Class 110(3) [Also in Group XXII] A bladed rotor for an axial flow compressor or turbine comprises a row of blades 4, an annular shell 2 having a ring of circumferentially-spaced apertures 6 in its periphery to receive the inner ends of the blades, and a disc 5 disposed co-axially within the shell with its periphery engaging the shell radially inwardly of the inner end surfaces of the blades. The shell, disc and blades are brazed together. The rotor shown has several rows of blades 4 and the shell is thickened by annular lands 7 in the region of the apertures. The shell is externally of conical form and the co-operating surfaces of the discs and shell are parallel thereto. In a second embodiment, Fig. 2, the co-operating surfaces of the disc and shell are cylindrical and a radial abutment surface 8 is formed on the shell. The blades, shell and discs may be formed of aluminium alloy and the parts brazed together by an aluminium brazing operation. Alternatively the parts may be formed of steel.