baber/WOPTO huggingface dataset:
Patent GB-257098-A (GB)
Title: Improvements in travelling conveyors
IPC: B65G37/00
Filed: 1925-08-22
Abstract: 257,098. Price, D. E. Aug. 22, 1925. Discharging devices for endless chain conveyers; troughs; sectional framework; guiding.- Articles such as stereoplates are conveyed by chains which are preferably flexible in both horizontal and vertical planes and travel along the bottoms of channel-section guides 2 formed on a number of base plates 3 and let into the floor so as to be flush therewith. The guides 2 are strengthened by webs 3<a> and the base plates are bolted together. Each chain may rest on a layer 6 of wood, fibre, or rubber fitted in the base of the guide. At curved parts of the track, the guides are made narrower and undercut grooves 7, Fig. 3, are formed in the inner guide member 2a to receive rollers or other projections on the chains. A stereoplate &c. 8 is removed from the track by engaging an abutment 11 on a platform 9 pivotally supported by parallel links 10.
Patent GB-1378194-A (GB)
Title: Method for casting mixtures of explosives
IPC: C06B21/00
Filed: 1972-05-05
Abstract: 1378194 Casting explosives RHEINMETALL GmbH 5 May 1972 [24 June 1971] 21119/72 Heading B5A In a method of casting mixtures of TNT and hexogen, the mixture is heated to 86‹ C. (i.e. 5‹ C. above the melting point at atmospheric pressure of TNT), and solidified under such a pressure that the melting point of the TNT is raised to a temperature which is greater than that of the mixture at that instant, the solidified mixture then being cooled, with the pressure maintained, to 50‹ C. (i.e. below the melting point of TNT at atmospheric pressure). The preferred mixture has 25-30% by weight of TNT, and a pressure of between 565 and 785 bar is required in this case. The castings produced were cylinders of 100 mm. diameter.
Patent GB-958952-A (GB)
Title: A fitting for refrigerator and like cabinets
IPC: F25D23/02
Filed: 1959-06-19
Abstract: 958,952. Refrigerators. T. G. LAIDLAW. June 20, 1960 [June 19, 1959], No. 21142/59. Heading F4H. A fitting for the top of a refrigerator or like cabinet having openings at the top through which articles may be removed comprises guides 11 straddling the openings and a support platform 12 movable along the guides from one side of the cabinet to the other side, so that, when in its left-hand position, access is afforded to the right-hand side of the cabinet and when in its right-hand position, access is afforded to the left-hand side of the cabinet. The openings may be covered by hinged doors 1. The support 12 has sliding or rolling means at its base which co-operate with guide rails 11. Each rail may be mounted on a batten 14 removably secured to the cabinet top. Alternatively, the rails 11 may be permanently secured to the cabinet top by welding, brazing or adhesion or the rails may be integral with the cabinet top. The rails may be of bulbous or T-head section, the sliding or rolling means having underhung elements whereby they are prevented from lifting off the rails.
Patent GB-1206267-A (GB)
Title: Improvements in or relating to cathode ray tube display devices
IPC: F15B13/04
Filed: 1969-04-25
Abstract: 1,206,267. Cathode ray tubes. STROMBERG DATA GRAPHIX Inc. 25 April, 1969 [29 April, 1968], No. 21171/69. Heading H1D. A character display tube wherein an electron beam is shaped by a stencil 18 into a multiplicity of characters of which one is selected for display by the combination of deflection means 35-37 and a diaphragm 33 adapted to pass only one character, the selected character being directed to a required part of the screen 12 by deflection means 39, is provided with an electron lens arrangement 19 of variable magnification. In Fig. 1 there are two lenses formed by electrodes 21 and 22 which cooperate with electrode 16 and a wall anode 40 respectively. If both lenses are adapted for focusing the image the magnification may be variable between 3À6 and 23À2; the ganged switches 23 and 24 are adapted to energize the lenses to potentials which are found experimentally to produce correct focusing at required magnifications. In an alternative mode of operation an intermediate image is formed so that the two lenses operate in cascade, and the magnification can be varied between 26 and 37. In a modified lens arrangement (Fig. 3, not shown) a cylindrical electrode (58) connected to electrode 16 is arranged between the two lens electrodes 21 and 22.
Patent GB-940637-A (GB)
Title: Control of fuel supply to burners
Inventor: KENT WILFRED ROBIN LEIGH
IPC: F23N1/02
Filed: 1961-06-12
Abstract: 940,637. Temperature-responsive actuating - elements. COCHRAN & CO. ANNAN Ltd. Sept. 10,1962 [June 12,1961], No. 21172/61. Heading G1D. [Also in Divisions F2 and F4] A temperature responsive device 8 which regulates the flow of fuel to a burner by means of a valve 7 in proportion to the air flow thereto projects into the air stream and comprises an inner rod 13 of alloy steel or other material of low coefficient of thermal expansion housed within and attached at one end to a tube 10 of steel or other material of high coefficient of expansion. An electrical heating element 14 is arranged to heat that portion of the tube which projects into and is therefore simultaneously cooled by the air stream, a rheostat 15 being provided to allow for preselection of the rate of heating of the tube 10. The tube 10 is attached at its other end to the valve 7 while the inner rod carries a frusto-conical valve member 21 which controls the flow of fuel through the valve 7 from inlet port 26 to outlet port 27. The valve member 21 is screwed into the rod and may therefore be adjusted in its initial setting. Variations in the rate of air flow produce variations in the rate of heat extraction from the device and therefore also in its temperature; variations in the temperature of the device are reflected in adjustment of the setting of the valve member 21 due to the differential expansion of the rod and tube. To compensate for variations occurring in the air temperature without alteration in its flow rate part 17 of the rod 13 may be constructed of material of high coefficient of thermal expansion. In a modification, (Fig. 4 not shown) the end of the inner rod is formed as a needle valve. The tube 10 may be heated by passing a current through two dissimilar metals one of the junctions of which lies close to the tube 10 i.e. employing the Peltier effect, or by the circulation of a heating medium through the device. In instances in which the combustion air is preheated a cooling medium e.g. water may be circulated at constant rate through the device extracting heat from it.
Patent GB-338132-A (GB)
Title: A tyre or cushion spring
IPC: A47C23/047
Filed: 1929-07-11
Abstract: 338,132. Jones, D. E. July 11, 1929. Spring surfaces.-In rubber tyrss and cushions the usual air or pneumatic tube constituting the internal support is replaced by a coiled spring consisting of large and small convolutions, each large convolution b being separated from the next large convolution by two or more small convolutions a. Specifications 20981/91 and 5524/96 [both in Class 144, Wheels &c.], are referred to.
Patent GB-404381-A (GB)
Title: Improvements in the manufacture and production of sulphonic acids and their conversion products which may serve as valuable intermediate products for the preparation of dyestuffs
IPC: C07C37/04
Filed: 1932-07-28
Abstract: Diphenyl benzenes are sulphonated by means of customary sulphonating agents to give mono- or poly-sulphonic acids (disulphonic acids in examples) followed by treatment of the acids thus obtainable, or their salts with various reagents in order to convert them into substitution products such as sulphochlorides, sulphamides, and sulphonic esters, or to replace the sulpho group by other groups such as the hydroxy group and therefrom, ethers or esters, or hydroxy-carboxylic acids.  The products are dye intermediates.  The sulphonation may be carried out in several stages.  According to examples, (1) 1 : 3-diphenylbenzene is sulphonated at -18 DEG  to -20 DEG  C. with chlorsulphonic acid to give a monosulpho acid from which are obtained the corresponding sulphochloride and sulphamide, the iromeric mono-hydroxy compounds and their ethers and esters such as the benzoates, diphenyl-3-carboxylic acid (by oxidation with alkaline permanganate), and a hydroxycarboxylic acid (by treatment with carbon dioxide under pressure).  (2) 1 : 3 diphenylbenzene is treated with 98 per cent sulphuric acid to give a disulphonic acid from which may be obtained the sulphochloride, sulphamide, the dihydroxy compound (by alkali fusion) having the hydroxy groups probably in o- and pposition to the diphenyl radical, and the corresponding ethers, esters and hydroxycarboxylic acids; (3) 1 : 4 diphenylbenzene is treated with chlorsulphonic acid at 70 DEG  C. or sulphuric acid monohydrate to give disulphonic acids from which may be obtained similarly sulphochlorides, sulphamides, hydroxy compounds and ethers, esters and hydroxycarboxylic acids.
Patent GB-481098-A (GB)
Title: Improvements in or relating to the sizing of paper and like fibrous products
IPC: D21H17/62
Filed: 1936-07-31
Abstract: Size for paper comprises rosin, if desired with one or more other natural resins, dispersed at a temperature between its initial softening point and its melting point, i.e. while it is in the plastic but not completely fused state, by agitation with an aqueous solution of animal or vegetable gelatine or animal glue. The gelatine or glue is preferably added to the rosin which is preferably brought to the desired temperature by first fusing it, e.g. at 130 DEG  C. and then cooling, e.g. to 90-95 DEG  C., by addition of water which may contain a small proportion of alkali. Dispersion should be effected as rapidly as possible and followed by cooling to prevent overheating of the stabilizer.  Casein may be used in addition to or as partly replacing the glue or gelatine, the alkaline casein being preferably added first to the rosin and the glue or gelatine subsequently to the mixture. Specifications 335,902, [Class 81 (i)], and 403,095 are referred to.ALSO:Size for paper or board comprises rosin dispersed at a temperature between its initial softening point and its melting point, i.e. while in the plastic but not completely fused state, and stabilized by means of a small percentage of dissolved animal or vegetable gelatine or animal glue.  The dispersion may be diluted, e.g. to contain 40 per cent of rosin. Casein may be used in addition to or as partly replacing the gelatine or glue, the alkaline casein being preferably added first and the glue or gelatine subsequently to the mixture.  One or more other natural resins may be used with the rosin.  A small proportion of alkali or of ordinary white size may be added to the size. Specifications 335,902, [Class 81 (i)], and 403,095 are referred to.
Patent GB-1488297-A (GB)
Title: Method and apparatus for shaping blanks
IPC: B21H9/00
Filed: 1975-05-19
Abstract: 1488297 Rolling annular blanks LENINGRAD POLITEKHNICHE INST IM MI KALININA 19 May 1975 21344/75 Heading B3M An annular blank is radially deformed adjacent an end face by applying a driven roll to that face, whereby the blank is rotated about its own axis. In Fig. 1, the blank 1 is mounted on a mandrel 2 and partially surrounded by a die 6. It may have an interference fit with the mandrel. Driven rolls 4, 5 are advanced against the end face of the blank to form a flange as shown. The angle α between blank axis and roll axis may be 90 to 180 degrees. The die 6 may be urged against the rolls 4 by springs 71. Fig. 4 shows an embodiment in which each end of the blank is rolled. Successive blanks are loaded by plunger 53 into an endless chain of annular dies 29, 26, 28, 27 &c. (see also Fig. 5, not shown) to be presented successively at a rolling station between fixed driven roll 25 and driven roll 24 movable with head 22 by motors 59. During advance of head 22, plunger 52 ejects the previously rolled blank from die 28, which die will next be filled with a fresh blank by plunger 53. The external diameter of the blank may increase, or its internal diameter decrease. Fig. 8 shows another embodiment in which the roll bearing housing 73 is pivotable by jack 75, the roll 72 being shaped as shown, whereby rolling starts with the roll axis perpendicular to the blank axis, with rolling occurring at the radially inner periphery of the blank (Fig. 7, not shown), and the roll is pivoted to move the rolling area radially outwardly of the blank to finish at the position shown.
Patent GB-213986-A (GB)
Abstract: 213,986. Marks, E. C. R., (U.S. Industrial Alcohol Co.). Jan. 11, 1923. Drawings to Specification. Liquid-meters.-The apparatus is identical with that described in Specification 213,985 in connection with a process for obtaining waterfree alcohols.
Patent GB-188303-A (GB)
Title: Improvements in game apparatus
IPC: A63D15/00
Filed: 1922-08-08
Abstract: 188,303. Murphy, H. R., and Murphy, H. B. Aug. 8, 1922. Table games.-A game apparatus comprises a smooth rectangular table bounded by vertical non-resilient rings or discs having convex peripheries and adapted to slide on the table when impelled by a cue or the like and to rebound from each other and from the non-resilient rails. In the form shown in Fig. 1 the table A and vertical rails ? a are made of wood, and pockets B are provided. The pockets may be omitted. An underframing C, D, Fig. 2, strengthened by corner blocks C<1> prevents warping of the table. The resilient rings and discs for impelling over the table assume various forms such as those shown in Figs. 6 .. 10. In Fig. 6 the periphery e of the ring, made. of celluloid, vulcanite, wood, &c. has a curvature equal to an arc of a sphere of the same diameter as the ring. The ring may have a solid or inflated rubber periphery g, Fig. 8. A solid or inflated rubber disc F, Fig. 7, with a sole plate f<1> may be used. In Fig. 9, a solid wooden disc has a rubber periphery g, and in Fig. 10 the disc is shown hollow.
Patent GB-991681-A (GB)
Title: Formulation of pyrolytic graphite articles
IPC: C04B35/583
Filed: 1963-05-30
Abstract: <PICT:0991681/C1/1> <PICT:0991681/C1/2> Pyrolytic graphite deposited from the vapour phase at 2000-2500 DEG  C. is annealed by heating to at least 3500 DEG  C. Fig. 1 illustrates apparatus suitable for the production of pyrolytic graphite in which chamber 11 contains graphite enclosure 17 which forms inner chamber 18. 18 has bottom opening 19 consisting of feedline 21 terminating in openings 22, and top openings 20 in cover 23. Flanges 26 in cover 23 support graphite plates 25.  Carbon black insulation 29 is supported by quartz or asbestos cylinder 30 around which are supplied induction coils 31. Outlet 32 is connected to line 33 associated with vacuum pump 34. Fig. 3 illustrates apparatus suitable for annealing a pyrolytic graphite body. Graphite enclosure 36 defines chamber 39 with upper opening 40 closed by cover 41; 38 and 42 are coatings of pyrolytic graphite.  From cover 41 extends graphite tube 43 and graphite bodies 35 supported by clamps 44.  Spectroscopic carbon powder 46 lies on the bottom of the enclosure.  Feed line 45 extending through the bottom of chamber 11 is connected to a source or argon or other inert gas.  In an example, the chamber atmosphere in apparatus according to Fig. 1 was reduced to 0.001 mm. Hg, and the chamber was heated to 2300 DEG  C.  Methane was supplied at 33 cubic feet per hour and flowed through the chamber at 18 mm. Hg pressure for 3 hours. Graphite was deposited on the plates, which after returning to room temperature and atmospheric pressure was removed.  A pyrolytic graphite body of thickness 70 mils. was removed from each surface of each plate and supported in the enclosure of the apparatus of Fig. 3 within the apparatus of Fig. 1.  The bodies were annealed by heating to 3600 DEG  C. for one hour in an argon atmosphere.
Patent GB-786450-A (GB)
Title: Compressors of the reciprocating type
Inventor: MILLINGTON BRIAN WYATT
IPC: F04B39/08
Filed: 1955-07-28
Abstract: 786,450. Rotary valves for compressors. RICARDO & CO., ENGINEERS (1927), Ltd. July 17, 1956 [July 28, 1955], No. 21887/55. Addition to 704,903. Class 8(1). The suction ports K6, K7 of the rotary valve of the compressor claimed in the parent Specification are so formed that the effective width of the suction port opening measured in a direction at right angles to the direction of travel of the valve relatively to any cylinder port being controlled is relatively great over the earlier part of each period of port opening and (as shown at K8 in Fig. 2, which is a development of the outer circumferential surface of the valve) relatively narrow during the later part of each period of port opening. Instead of a narrow slot K8, the narrow portion may be formed by a series of apertures. Specification 704,935 is referred to in the Provisional Specification.
Patent GB-203338-A (GB)
Title: Improvements in pistons
IPC: F02F3/12
Filed: 1923-08-30
Abstract: 203,338. Philip, C. W. Aug. 30, 1922, [Convention date]. Pistons: piston-packing substitutes.-The head 4 of the piston of an internal-combustion engine is recessed to receive a disc 6 of non-conducting, heat-resisting material such as steatite, compressed lava. or compressed asbestos. The disc 6 is enclosed in a tinned metal cup 5, the edges of which may be peaned over the edges of the disc. The piston is cast round the cup 5. or shrunk on to it. The piston may be made a working fit in the cylinder without packing rings.
Patent GB-169343-A (GB)
Title: A new or improved clay for use in the manufacture of pottery
IPC: C04B33/02
Filed: 1920-07-22
Abstract: Potters' slip consists of powdered stone, milled china clay, ground feldspar, ground nitrate of potash, and small quantity of liquid cobalt, with the necessary quantity of water to form a slip.  A small quantity of calcined bone may be added which may replace some of the china clay.
Patent GB-984352-A (GB)
Title: Improvements in or relating to photo-type heat exchangers
Inventor: WAGNER HAROLD
IPC: F23M20/00
Filed: 1961-06-19
Abstract: 984,352. Air heating apparatus. E. GREEN & SON Ltd. July 30, 1962 [June 19, 1961], No. 22044/61. Heading F4S. A heat exchanger for preheating air for combustion in the furnaces of boiler installations comprises sets of plates 4, 5 and 6 assembled so that each plate is in contact with flue gases on one side and with air to be heated on its other side, the sets being arranged one in front of another in the direction of air flow, the air spaces 1 of each set being fed with air through an air passage which by-passes the other set or sets. As shown, the sets of plates 4 and 5 are arranged side-by-side with a bypass passage 10 separating them. Plate set 6 is arranged downstream of sets 4 and 5 and has by-pass passages 12 and 13 arranged between it and casing 3. Air to be heated enters at 9 and passes through passages 1 in sets 4 and 5 and also through by-pass passage 10. The air from the passages 1 is then deflected by partition 15 into by-pass passages 12 and 13 whilst the air from by-pass passage 10 now enters passages 1 of plate set 6. All the air then enters a lower tier (Figs. 1 and 3, not shown), via transfer passage 14 and the passage of air is then reversed following a similar sequence of passages as in the upper tier. The air is heated during its flow through the sets by hot gases flowing vertically upwards through passages 2. The plates are preferably of cast iron and are provided with fins (not shown).
Patent GB-671688-A (GB)
Title: Separation of low boiling gas mixtures
IPC: F25J5/00
Filed: 1949-08-24
Abstract: 671,688. Separation of air. ARNOLD, J. C. (Standard Oil Development Co.). Aug. 21, 1950 [Aug. 24, 1949], No. 22053/49. Class 8 (ii) Condensible impurities such as water and carbon dioxide are removed from a gas mixture e.g., air prior to rectification by passing a major portion say 78 per cent of the air at 4 to 6 atmospheres pressure from lines 3, 4 through the one or other of alternating regenerators 10, 12 which has previously been chilled and derimed by a greater quantity of cold returning product e.g., nitrogen from lines 15, 17, 18 and by passing the remaining air from lines 6, 7 through one or other interchangeable paths of an extended surface exchanger 30 which has previously been derimed by a cold returning product e.g., oxygen in lines 25, 27, 28 of less quantity than the 22 per cent of air; both paths of the exchanger 30 being in thermal contact with a separate continuous stream of gas e.g., high pressure nitrogen in a single path 37 which provides extra cooling at the cold end of the exchanger 30 to adjust the heat balance within it, whilst maintaining at its warm end a small temperature difference between the incoming air and the outgoing oxygen, and also insuring complete sublimation of the condensed impurities. The warmed high pressure nitrogen leaving the path 37 by a line 39 is cooled by admixture with high pressure nitrogen in a line 41 before expansion at an engine 45 to provide refrigeration for the system. In a modificaiion cold oxygen from the line 25 cools the path 37 and is itself recooled by exchange with high pressure nitrogen before being fed through the exchanger 30. Alternatively the path 37 is traversed by cold air leaving the regenerators 10, 12 and is then cooled with low pressure nitrogen after expansion at the engine 45.
Patent GB-1198929-A (GB)
Title: Improvements in or relating to Polymer Dispersions
IPC: C08F8/30
Filed: 1968-05-09
Abstract: 1,198,929. Iminated copolymer emulsions. E. I. DU PONT DE NEMOURS & CO. 9 May, 1968 [9 May, 19671. No. 22128/68. Heading C3P. Aqueous emulsions of copolymers of an unsaturated carboxylic acid which have been iminated with an alkylene imine are rendered colour-stable by the addition of an ammonia derivative having two free hydrogen atoms bonded to a nitrogen atom. The copolymer is preferably obtained from (a) vinyl acetate; (b) as acid monomer acrylic, methacrylic, crotonic, maleic, fumaric or itaconic acid or methyl monomaleate and optionally (c) ethylene, ethyl acrylate, 2-ethylhexyl acrylate or a vinyl ester of a Versatic acid (Registered Trade Mark). Preferred imines are ethylene and propylene imine and the ammonia compound is preferably added before the imination. Specified ammonia compounds are hydrazine, hydroxylamine, thiosemicarbazide, unsym. dimethyl hydrazine, hydroxylamine hydrochloride and semicarbazide hydrochloride. A pigment may be added.