baber/WOPTO huggingface dataset:
Patent GB-758051-A (GB)
Title: Improvements in and relating to mining machines
Inventor: ROUND CHARLES
IPC: E21C27/46
Filed: 1955-03-25
Abstract: 758,051. Mining machines. COAL INDUSTRY (PATENTS), Ltd. March 25,1955 [April 8, 1954], No. 10372/54. Class 68(1) A longwall mining machine has a rotatable carrier 8 and at least one (three being shown) rotatable star wheel 16 mounted eccentrically on the carrier 8, each star wheel 16 being provided with a plurality of wedgeshaped projections 18, which may be detachable, adapted to detach mineral from a seam face. There may also be a roof star wheel 19 and a floor scraper 20 or a floor star wheel, the distance between the roof star wheel 19 and the floor member being adjustable according to the depth of the seam. The carrier 8 is rotated by means of a haulage cable 14 wound round a drum connected to the carrier 8 through gearing or other means. The cable 14 may also be used with the aid of rope wheels to move the machine along the face or separate haulage means may be employed. The star wheels 16, 19 may rotate freely on stub shafts or be driven. The machine is sup- . ported on rollers 5 which run on side supports of a conveyer on to which coal may. be deflected by scrapers, loading ploughs, or shovel blades attached to and rotating with the carrier.
Patent GB-288576-A (GB)
Title: Improvements in and relating to refrigerator cabinets
IPC: F25D23/08
Filed: 1928-04-05
Abstract: 288,576. British Thomson-Houston Co., Ltd., (Assignees of Knight, J. L.). April 12, 1927, [Convention date]. Nonconducting coverings for heat.-A refrigerator cabinet 1 and its cover 3 are formed of spaced metal plates packed with granulated cork or cork slab and connected by strips 9 of heat insulating material such as synthetic resin. The door 4, Fig. 3, is similarly constructed, the corners being lined with thin strips of monel metal at the places of contact between the door and the casing. The cabinet may be provided with double hinged dcors without a central post between them.
Patent GB-1459727-A (GB)
Title: Electrical gas-blast circuit breaker
IPC: H01H33/91
Filed: 1975-03-12
Abstract: 1459727 Gas-blast circuit breaker SIEMENS AG 12 March 1975 [17 Sept 1974] 10383/75 Heading H1N In a gas-blast circuit breaker comprising two electrodes 3 and 4, and a moving contact member 6, 7 which slides along the electrode 4 and on to the other electrode 3 to effect the circuit closing and opening operation, the electrode 3 is provided with a control system 14 which urges it to move during circuit breaking, first towards the electrode 4 (to the position 3<SP>1</SP>) and then away from it, provided the current being interrupted is sufficiently large. The control system 14 (Fig. 2) comprises two sets of primary and secondary coils 15a, 15b and 16a, 16c arranged to carry, during circuit interruption, the current being interrupted, and designed so that the phase angle between primary and secondary currents in the first set is between 120 and 150 degrees whilst that in the second set is 180 degrees. The resultant electromagnetic interaction, if the current is increasing when circuit breaking is initiated, causes the first pair of coils 15a, 15b to repel one another against the action of the spring 11 and the much weaker repulsion between coils 16a, 16b, thus moving electrode 3 towards electrode 4 and reducing the arcing gap. As the current approaches zero the interaction between 15a and 15b becomes attractive thus assisting the spring and the repulsion between 16a, 16b to return the electrode 3 to its fully open position, the moving contact member 6, then being also fully open. Gas blast is provided by a cylinder 20 which moves with the contact member 6, the gas, e.g. SF6, being exhausted through the hollow electrodes. Modifications of the control system 14 to improve control characteristics and the commutation of current to the coil systems, using an angular movable electrode together with an interdigitated fixed electrode, are described (Figs. 3, 4 and 4a, not shown).
Patent GB-1178847-A (GB)
Title: Dry Granular Process and Product
IPC: B29B9/00
Filed: 1967-03-06
Abstract: 1,178,847. Additives for PVC. CHEMISCHE WERKE MUNCHEN OTTO BARLOCHER G.m.b.H. 6 March, 1967 [15 March, 1966], No. 10445/67. Heading C3P. Granular products are obtained from pulverulent plastics additives by mixing with a granulating agent consisting of an organic compound having a melting point above 40‹ C. which is solid and non-adhesive at room temperature and has a molecular weight above 150, heating the mixture to melt the granulating agent while stirring vigorously, then cooling while under reduced stirring. Preferably the application is to PVC additives such as stabilizers, fillers, dyes, anti-static agents and fire retarding agents and as granulating agents are used processing lubricants. In examples the following materials are mixed, the heat of stirring being sufficient to melt the granulating agent and then cooled while stirring less vigorously: (1) dibasic lead stearate, neutral lead stearate, chalk coated with calcium stearate and cetyl palmitate; (2) dibasic lead sulphate, dibasic lead stearate, calcium stearate, stearic acid and pentaerythritol distearate.
Patent GB-591072-A (GB)
Title: Process of obtaining cellulose from reeds and other annual plants
IPC: D21C3/00
Filed: 1945-04-26
Abstract: Cellulose is obtained from annual plants such as reeds by subjecting the plant material to a boiling treatment with a solution of an alkali chloride or other metal chloride and then to a boiling treatment with a solution of caustic soda containing sodium chloride. The product may be subjected to bleaching treatments with chlorine and sodium hypochlorite to obtain a pure cellulose suitable for the rayon industry or for the production of explosives.  Magnesium chloride may be used instead of sodium chloride for the first boiling treatment, or a mixture of these salts such as occurs in sea water may be used.  Pentosans are removed by the boiling salt solution and the spent liquors contain furfural.  The presence of sodium chloride in the caustic soda solution aids the removal of lignin, hemicelluloses and other impurities.  The caustic soda solution may be one obtained by subjecting brine to electrolysis.  In an example, stems of Arundo Donax are crushed and cut, the leaves being left unstripped.  The material is washed with water or salt-water and then placed in an autoclave where it is boiled with a solution containing 30 grams per litre of common salt.  Sea water may be used for this purpose. Boiling is effected at elevated pressure for several hours. The material is washed with hot water and then subjected to boiling under pressure with a solution containing 30 grams per litre of caustic soda and 37 grams per litre of common salt.  The pulp and liquor are then pumped to vacuum filters and the pulp is washed. The pulp may then be bleached with gaseous chlorine.  It may be further purified by a boiling treatment with a dilute caustic soda solution containing sodium chloride and by bleaching with sodium hypochlorite solution.
Patent GB-671775-A (GB)
Title: New 4:7-phenanthrolines and manufacture thereof
Filed: 1950-04-28
Abstract: The invention comprises hydroxy-phenthrolines, their ethers and salts thereof having the ring structure <FORM:0671775/IV (b)/1> The compounds which may be further substituted both in the aromatic and in the heterocyclic ring systems are made by subjecting 1 : 4-phenylene diamines or compounds which are equivalent so far as the Skraup synthesis is concerned which contain at least one free or etherified hydroxyl group and two vicinal hydrogen atoms to a duplicated Skraup synthesis either in one stage or in two separate stages.  Equivalent compounds mentioned are 4-nitranilines, mono- or di-acyl-1 : 4-phenylene diamines, or 4-aminoazobenzenes containing the said free or acylated hydroxyl group.  The above starting materials are reacted with glycerol or with acrolein or with substituted acroleins such as crotonaldehyde in the presence of condensing agents such as sulphuric acid, and oxidizing agents such as arsenic acid.  When the reaction is carried out in two stages the corresponding aminoquinolines are formed as intermediate products.  A further feature of the invention comprises using as starting materials 4 : 7-phenanthrolines which contain in the 5-position a halogen atom or a sulpho or amino group and replacing said group with a free or etherified hydroxyl group.  Acids mentioned which may be used to form salts with the bases of the present invention comprise hydrochloric, sulphuric, nitric, phosphoric, thiocyanic, acetic, propionic, oxalic, malic, citric, benzoic, methane sulphonic, ethane sulphonic, oxyethane sulphonic, benzene sulphonic, and toluene sulphonic acids.  In examples: (1) 2-Methoxy-4-nitraniline is heated with concentrated sulphuric acid, glycerol and arsenic acid to form 8-methoxy-6-nitroquinoline which is reduced to the 6-amino compound and heated in a second stage with sulphuric and arsenic acids and glycerol to form 5-methoxy-4 : 7 - phenanthroline; (2) 2 - methoxy - 1 : 4-phenylene diamine is heated with sulphuric and arsenic acids and glycerol to form directly in one stage 5-methoxy-4 : 7-phenanthroline; (3) 5 - chloro - 4 : 7 - phenanthroline is heated under pressure with an alcoholic solution of caustic potash and copper bronze to form 5-methoxy - 4 : 7 - phenanthroline, which is recovered as its hydrochloride and may if desired be converted to the di-methane sulphonate; (4) 5-methoxy-4 : 7-phenanthroline is hydrolysed to the corresponding 5-hydroxy compound; (5) the 5-hydroxy compound obtained in example (4) is converted to the 5-ethoxy compound; (6) Guaiacol is heated with caustic potash and then 5-chloro-4 : 7-phenanthroline added, the mixture heated in the presence of copper bronze to form 5-(o-methoxy-phenoxy)-4 : 7-phenanthroline.  5 - Chloro - 4 : 7 - phenanthroline is prepared from 2-chloro-1 : 4-phenylene diamine by the Skraup synthesis.
Patent GB-1011024-A (GB)
Title: Improvements in or relating to a punching mechanism
IPC: G06K1/06
Filed: 1964-03-13
Abstract: 1,011,024. Selective punching. SIEMENS & HALSKE A.G. March 13, 1964 [March 15, 1963], No. 10613/64. Heading B4B. A punching mechanism for recording signals in coded form comprises counter rollers 2, 3, 4 settable on a shaft 1 in accordance with particular signals, the rollers having associated therewith cam discs 17, 18, 19 which are capable of being scanned by feeler pins 14, 15, 16 connected through spring- influenced pivotally-mounted levers 10, 11, 12 with rack bars 23, 24, 25 the teeth of which are coded according to the signals, the rack teeth serving to operate punch needles 32 to punch a strip or card inserted in a slot 33. The needles 32 are carried by a punch plate 31 operable by an eccentric 30 on a shaft 29 connected to the shaft 1 by gear-wheels 26 to 28. After the punching operation, the needles 32 are retracted by a stripper 35. In the form shown, the rollers 2 to 4 are set by hand and held in the set position by a pawl 5. In this position, the pins 14 to 16 are held outside the range of the cam discs 17 to 19 by means of cams 7, 8, 9. When the crank is turned into the position shown, the pins 14 to 16 are released to engage the cam discs 17 to 19. Instead of the rollers 2 to 4 being set by hand, they may be set by a fluidoperated counter or meter which may also preset a printing mechanism so that a voucher is printed simultaneously with punching of a card.
Patent GB-578464-A (GB)
Title: Improvements in or relating to laminated cores for transformers and other electrical apparatus
IPC: H01F27/245
Filed: 1944-06-02
Abstract: 578,464. Transformer &c. cores ; electromagnets. STANDARD TELEPHONES & CABLES, Ltd., and BEARD, J. R. June 2, 1944, No. 10620. [Classes 35 and 38 (ii)] In transformers and other electrical apparatus the core laminations 1 are provided with slots 2, which may be either parallel-sided or dovetailed, into which wires or strips of softer material, such as copper or aluminium, are forced and their ends bent over or riveted in order to clamp the laminations together. In Fig. 5, the wires 4 co-operating with the dovetail slots are integral with a mounting plate 6.
Patent GB-586849-A (GB)
Title: Improvements in and relating to cutting tools for trueing valve seats
IPC: B23C3/05
Filed: 1944-06-02
Abstract: 586,849. Drills and cutters. VICTORY ENGINEERS, Ltd., and FISHWICK, R. June 2, 1944, No. 10656. [Class 83 (iii)] A tool for trueing the seats of internalcombustion engine valves consists -of a mild steel body a tapered at b and having highspeed cutters c located in slots therein and secured by tapered pins f. The cutters and slots are shaped like woodruff keys with circular bases, and for removing hard carbon from the work the forward faces of the cutters may be grooved as at g. The body a is mounted on a pilot spindle i, which may be made of nickel chrome steel and has opposed flat surfaces engaging lugs k on the body, the body and spindle being rotated by a hand wheel m mounted on a squared end on the spindle.
Patent GB-553155-A (GB)
Title: Packing for adjustable propellers, in which the blades and the stems of the blades are detachably connected to each other
IPC: B63H3/00
Filed: 1942-07-30
Abstract: 553,155. Screw propellers. ESCHER WYSS MASCHINENFABRIEKEN AKT.-GES. July 30, 1942, No. 10663. Convention date, Aug. 5, 1941. [Class 114] [Also in Group XXVI] In an adjustable-pitch propeller, packing for the rotatable stems of the blades is so arranged as to remain in position when a blade is removed or broken off. Each blade 2, Figs. 1 and 2, is connected by bolts 4 to a stem 3 rotatable in the propeller hub 1, and a packing-ring 6 is forced by a spring-pressed ring 8 against the hub and against a flange 7 detachably fixed to the stem 3. In a modification, a packing- ring 13, Fig. 3, which is acted on by a spring-pressed ring 16, bears against the edge of a flange 12, which is integral with the blade stem 11, and also against a removable segmental ring 14 secured to the hub.
Patent GB-265429-A (GB)
Title: Improvements relating to fastening devices for straps, belts, bands or the like
IPC: A44B11/28
Filed: 1926-04-23
Abstract: 265,429. Brooks & Co., Ltd., J, B., and Horden, H. R. April 23, 1926. Hook fastenings for the end of straps, belts, and bands comprise a hook 3 secured to one member 7 and engaging a cross-piece or pin 10 secured to the other member 11, the hook member being movable angularly until the parts lie close together, as shown, so that a catch 4 engages over the end of the plate 2. The catchpart 4 is formed by curling over an extension of the hook member, this catch member snapping over the end of the plate 2. The fastening device is formed from sheet metal parts with ears pierced to receive the cross-bars or pins 6, 9, 10. The hook may be carried bv the member 2. and instead of a cross-bar 10 the hook may engage with a slotted member.
Patent GB-1098631-A (GB)
Title: Improvements in interconnecting medium
IPC: H01R24/58
Filed: 1965-03-12
Abstract: 1,098,631. Printed circuits. GENERAL ELECTRIC CO. March 12, 1965 [March 23, 1964], No. 10678/65. Heading H1R. In a wring board for selectively interconnecting electronic components, e.g. in a highspeed digital computer, an insulating board 1 has mutually perpendicular sets of parallel grooves 2, 3 cut in its opposite surfaces; holes (not shown) are drilled through the board 1 between grooves of different sets at all crossover points; a metallic coating 6 is deposited over both surfaces of the board and on the walls of the holes therein, to form a screening plane; an insulating coating 7 is deposited over the coating 6 within the grooves 2, 3 and into the holes, filling the latter; apertures are formed through the insulating filling in those holes where an interconnection is desired between signal conductors; and a second metallic coating is deposited within the grooves and through the said apertures to form signal conductors 5 and the connections therebetween. The parts of coating 6 between the grooves may be removed.
Patent GB-1095153-A (GB)
Title: Nuclear fuel elements
Inventor: HAIGH ROY ERNEST
IPC: G21C3/14
Filed: 1964-03-13
Abstract: 1,095,153. Fuel elements. ENGLISH ELECTRIC CO. Ltd. March 12, 1965 [March 13, 1964], No. 10683/64. Heading G6C. A nuclear fuel element comprises fuel material 10 housed within a can 11 closed at each end by an end cap 15, e.g. of magnesium alloy, a heat-insulating disc 13 between the fuel and each end cap, and a ring 20 of a material (e.g. steel) more creep resistant than that of the end caps in a groove 21 in each end cap 15. The rings 20 serve to reinforce the end caps so as to provide restraint against radial creep. A lip 20A projects inwardly from each ring 20 so as to prevent the latter from sliding longitudinally between the wall of the can 11 and the discs 13. In the open end of each end cap 15 there is tightly fitted an end fitting 18 by means of which the fuel element can be lifted. In addition to the incorporation of a ring 20, one or both transverse faces of each end cap 15 may be provided with corrugations which engage corresponding corrugations on the abutting faces of the disc 13 and/or the end fitting 18 so as to provide further restraint against radial creep. There may be one or more circular corrugations on each corrugated face. Alternatively, a single spiral corrugation may be formed on each of two mutually engaging faces. Reference has been directed by the Comptroller to Specification 897,499.
Patent GB-1459728-A (GB)
Title: Azo dyestuffs containing cyanoalkylamino carbonyloxyalkylamino  groups
IPC: C09B29/08
Filed: 1975-03-14
Abstract: 1459728 Water-insoluble azo dyestuffs containing cyanoalkylaminocarbonyloxyalkylamino groups BAYER AG 14 March 1975 [16 March 1974] 10739/75 Heading C4P Novel water-insoluble azo dyestuffs of the formula (wherein D is the radical of an aromatic carbocyclic or heterocyclic diazo component; R 1  is H, halogen, alkyl, alkoxy or acylamino; R 2  is H, alkyl or alkoxy; R 3  is alkyl, alkoxyalkyl, cyanoalkyl, cyanoalkoxyalkyl or dicyanoalkyl; and A and B are each alkylene) are prepared by coupling diazotized amines DNH 2  with coupling components of the formula (wherein Z is H, phenoxycarbonyl or and when Z is H, reacting the product with OCN-B-CN or Q-CO-X (wherein Q is Cl or Br and X is phenoxy or -NH-B-CN) and when Z is phenoxycarbonyl or X is phenoxy reacting the product with NC-B-NH 2 . The dyestuffs are used for dyeing synthetic hydrophobic fibre materials, particularly polyesters, cellulose esters and polyamides.
Patent GB-1037802-A (GB)
Title: Arithmetic circuit
IPC: G06F7/50
Filed: 1963-03-19
Abstract: 1,037,802. Parallel binary adders. SPERRY RAND CORPORATION. March 19, 1963 [March 29, 1962], No. 10779/63. Heading G4A. In a parallel binary adder, each stage includes a carry propagating network, alternate networks receiving from the preceding adder stage true and complementary carry signals respectively. The carry propagation time is thus reduced. Fig. 3 shows four adder stages which may form a " group " for the purpose of pyramiding circuitry (not shown) for determining whether carry from a lower order group can be satisfied in a higher order group. The numbers to be added are stored in an augend register (X-register) and an addend register (Y-register), which registers are not shown but have their true and complementary outputs Xn-1, Yn-1, #Xn-1, #Yn-1 &c. connected as shown to the adder stages. The arrangement of gates 22-38, 22-40, 22-50, 22-54 constitute in each adder stage an EXCLUSIVE OR circuit whose output is combined with true and complementary carry signals in gates 22-58, 22-64, 22-80 to provide the sum output digit. The carry signals C,C for the lowest illustrated stage 22 may come from a lower stage (if any) or may be endaround carry from the highest stage 28. In each stage true and complementary carry signals C, C are produced by a carry generating circuit comprising gates 22-68, 22-82, 22-84, 22-90 which are supplied directly with signals from the X and Y registers and also with a CARRY ENABLE signal on a line 66. The carry generating circuit is supplied at gate 22-68 with either the true or complementary carry signal C or C, the alternative carry signals being supplied to alternate adder stages. The necessity for carry signal inversion in which a carry is propagated through a plurality of stages is thus obviated. It is stated in the Specification that the described arrangement could be applied to a subtracter.
Patent GB-684784-A (GB)
Title: Improved sliver coiling apparatus for use in conjunction with textile machinery
IPC: B65H54/76
Filed: 1950-05-03
Abstract: 684,784. Sliver coiling apparatus; sliver cans; roller arrangements in spinning &c. machines. T.M.M. (RESEARCH), Ltd.,WATSON, W. H., and OSBALDESTON, J. May 3, 1951 [May 3, 1950]. No. 10911/50. Classes 120 (ii) and 120 (iii). Also in Group XVII Sliver coiling apparatus incorporating a battery of coiler heads comprises means common to each unit thereof for rotating the sliver guides and driving the calender rollers in unison, a support for a can capable of receiving the collective output of the battery, and means operatively associated with said driving means for imparting to the support a motion such that the can is given a circular orbital movement so that each sliver is independently coiled. In the mechanism shown in Figs. 3 and 6, rotary motion imparted to one of two shafts 46 is transmitted through gears 45, 44, sprockets 31, endless chain 30, to each of the sprockets 29 carried by sliver guides 28, and, through a pinion 32, gearing 33, 34; 38, 39; 40, 41; to driving shafts 36, 37, of pairs of calender rollers 26, 27, connected by gear trains 42, 43; in order that any coiler unit may be isolated from the remaining units, the shafts 261 of the rollers 26 are mounted in brackets 65 pivoted at 66 upon brackets 67, in which the shafts of the rollers 27 are mounted, (Fig. 5). As shown in Figs. 9 and11, the shafts 46 also drive duplicate mechanisms in each of which rotary movement is transmitted through a worm and worm-wheel 52, 53, shaft 54, gears 55, 57; 56, 58, shafts 59, 60, to disc-cranks 61, 62, crank pins 63, 64, of which engage bushes 48, 49, in a can support 24. A can 25 mounted on anti-friction balls 47 may be guided into position by means of pegs on its underside co-acting with rails 50, 50, flared at one end.
Patent GB-137722-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/04
Filed: 1919-05-02
Abstract: 137,722. Evans, R. May 2, 1919. Tobacco pipes.-The bowl A is formed with a perforated bottom B, a lower chamber G to receive the stem, and a series of perforations F, H, I through which air circulates to cool the pipe.
Patent GB-1420553-A (GB)
Title: Pins for mine and tunnel roofs and other structures
IPC: E21D21/00
Filed: 1974-03-12
Abstract: 1420553 Reinforcing pins LEE-NORSE CO 12 March 1974 [16 April 1973] 10962/74 Heading F2H A reinforcing pin to be driven into a mine or tunnel roof has an elongate shank 12 with an enlarged leading end portion 18 having a blunt end face 14 which may be flat, Fig. 1, or concave, Fig. 3. The pin has an enlarged head 24 at its rear end and the shank 12 tapers over part or all of its length from the head towards the leading end so that the circumference of the shank over most of its length is less than that of the enlarged end portion 18. The blunt leading end is stated to minimize the risk of the pin deviating from its desired path as it is driven through faulted strata. The pin may be made in one piece; as shown, or may have two or more sections joined end-to-end.