baber/WOPTO huggingface dataset:
Patent GB-143556-A (GB)
Title: Improvements in signalling systems
IPC: B61L9/04
Filed: 1920-05-19
Abstract: 143,556. Position-Light Signal Co., (Assignees of Churchill, W., and Rudd, A. H.). July 13, 1914, [Convention date]. Semaphore luminous signals.-Sets of lamps arranged in rows in different positions are used in place of movable semaphore arms for day and night signalling, the intensity of illumination being variable. The lamps are arranged on a dark background, and in the case of several rows of lamps one is preferably common to all rows. Fig. 3 shows the preferred form of lantern comprising an electric incandescent lamp 5 with a horizontal spiral filament, carried in a holder, Fig. 5, adapted to allow vertical adjustment of the lamp, a lens 1, a spherical reflector 4, above the lamp, a cover 3 for the lens, and a shade 23. The lantern is preferably fitted with a lens, as described in Specification 137,962, [Class 75 (ii), Lamp Chimneys &c.], which is arranged to throw a slightly divergent beam downwards, the lateral divergence being less than the downward divergence. A yellow glass cover such as is described in Specification 118,397, [Class 56, Glass], may be used to cut off blue and violet rays. For night signalling smaller candle power is used than for daylight signalling, by reducing the potential of the lighting circuit, which may be supplied from central or local sources of energy. Fig. 4 shows a signal comprising three groups of lamps 1 arranged to give " danger," " caution," and " clear indications controlled by two track relays 21<a>, 21<b> and a line relay 21<c> and with a relay 17 controlled by a switch 18 for supplying energy to the lamp from either a part or the whole of a battery 14. The lamp 1<a> is common to the three rows of lamps and is always in eircuit. The other lamps are put in and out of circuit by the armatures 15, 16 of relays 21<a>, 21<c>.
Patent GB-1241733-A (GB)
Title: Improvements in and relating to barges
Inventor: BARTLETT DUDLEY SELWAIN
IPC: B63B35/30
Filed: 1969-03-17
Abstract: 1,241,733. Sectional hopper barges. DBP DREDGE & MARINE Ltd. 17 March, 1970 [17 March, 1969], No. 13844/69. Heading B7A. A hopper barge is constructed of prefabricated units separably joined together to facilitate transporting of the barge between working sites. Each hull section is fabricated as a buoyant and stiff tank with steel ribs, stringers, plating and bulkheads, flanges being provided for bolting the sections together, Figs. 4 and 5 (not shown). The barge comprises side hull sections 1 to 4, and bow and stern sections 8, 12 defining a hold. The bottom of the hold comprises a frame 13, and a keelson 14 joined to sections 8, 12. Downwardly-opening doors 15 are hinged on keelson 14 and controlled by hydraulic jack-operated cables running over sheaves 17. A vertical tunnel 18 through stern section 12 can accommodate the drive shaft of a propulsion unit.
Patent GB-591629-A (GB)
Title: Improvements in or relating to liquid heaters
IPC: F24H9/00
Filed: 1945-07-20
Abstract: 591,629. Heating water &c. RICHARDS, G. W. F. and KING, D. H. July 20, 1945, No. 13883/44. [Class 64 (i)] An oil-fired water or other liquid heater comprises a flue pipe or chimney 10 located within and spaced from a tubular casing 15 so as to form a water jacket, an oil burner 12 located well within the lower end of the flue pipe 10, and a single-walled tubular baffle 20 which is open at its lower end and depends a substantial distance into the flue from a cap 19 supported by a spider 19a over the upper end of the flue pipe, the baffle serving to direct hot gases away from the centre of the flue pipe. The tubular baffle may carry staggered baffle plates on its outer surface. A pair of such heaters may be mounted side by side by means of straps on a vertical supporting member which also carries between the heaters a fuel oil tank connected to the reservoirs of the burners 12 and above the heaters a hot water tank connected by pipes to the water jackets of the heater.
Patent GB-149107-A (GB)
Title: Improvements in and relating to fastenings for doors and the like
IPC: B62K27/04
Filed: 1919-06-02
Abstract: 149,107. Birmingham Small Arms Co., and Edwards, A. June 2, 1919. Latches, sliding.-In a sliding latch for motor-cycle side - car doors &c., the bolt 4, supported on either side by studs or projections 5, is shot by a spring 13 and retracted by the downward movement of the rod 6, the flat inclined part 11 of the rod engaging with an inclined slot 22 in the bolt. The rod 6, which may be made from a round bar, is guided by slots or holes 8, 10 in the casing. The stem of the knob 23 slides in a socket 24 mounted in the top of the door.
Patent GB-768933-A (GB)
Title: Improvements relating to oil pumps or motors operating on the displacement principle
IPC: F04C14/14
Filed: 1955-05-13
Abstract: 768,933. Rotary pumps and motors. NUBLING, O. May 13, 1955 [May 15, 1954], No. 13924/55. Class 110 (2). A pump or motor of the n and n+ 1 lobe type is provided with a control valve 11 having oil circulation passages 12, 13 and spring-loaded pistons 22, 26 in communication with the valve passages 12, 13 respectively for balancing the pre-compression on the suction side and the pump pressure. The gear 3 is bolted to end plates 4, 5 and the gear 2 is formed integral with a driving shaft 1 which also drives a gear pump 34 for filling purposes through gears 31, 32, 33, the pumps 3, 4 feeding oil through a channel 36 into the passage 12. The valve is controlled by a lever 14 and is provided with a cross channel 19 (see also Fig. 2, not shown). An overflow valve 37 is provided in the gear pump circuit, as shown.
Patent GB-593541-A (GB)
Title: Improvements relating to seed drilling devices
IPC: A01C7/16
Filed: 1945-06-04
Abstract: 593,541. Seed-sowing machines. MUSGROVE & GREEN, Ltd., and GREEN, D. A. June 4, 1945, No. 13942. [Class 6 (i)] Windows d<SP>1</SP>, d<SP>2</SP> are provided in the top and sides of the seed-containing hopper a, from which the seed is fed by a brush b through an adjustable disc a<SP>1</SP> having holes of differing size to a shoot c. The drills are closed by a transversely-divided roller e supported from the container by links e<SP>1</SP>.
Patent GB-1268244-A (GB)
Title: Optical device for testing eyes
IPC: A61B3/135
Filed: 1969-03-17
Abstract: 1,268,244. Eye-testing apparatus. GAMBS  S.A. March 17, 1969 [March 18, 1968J, No.13960/69. Heading G2J.  An optical device removably attachable to an eye-testing instrument comprises a luminous test source 2 in tube 4 mounted on a frame 6, a reflector system 8 for optically directing light from source 2 to an eye being examined, the frame 6 with source 2 being eccentrically movable about an axis Y-Y relative to the reflector system 8, the axis Y-Y passing through a point 14 optically conjugate with the centre of rotation C of the eye 12. The reflector system 8 may be a semi-reflective surface inclined to the optical axis X-X, and comprises a pair of glass members having inclined mating surfaces 13 forming the semi-reflective surface. The frame 6 is provided with an arcuate scale 17 which moves relative to a scale 20 fixed to a frame 7. If desired frame 7 may be rotated about optical axis X-X on a guide 19 fixed to the eye-testing instrument, a scale 18 on frame 6 indicating the angle of rotation.
Patent GB-661999-A (GB)
Title: Improvements in the melt spinning of fine denier synthetic filament yarn
IPC: D01D5/08
Filed: 1949-05-25
Abstract: <PICT:0661999/IV (a)/1> Fine denier filament yarns are obtained by melt spinning a synthetic polymeric substance through a multihole spinneret into a stream of inert gas passing through a spinning cell and maintained at a temperature sufficient to cool the molten substance to below its solidification temperature so as to form a plurality of fine denier filaments which are gathered together to form a yarn and steadied by means of a convergence yarn guide as soon as the filaments solidify and become substantially non-tacky.  The fine denier filament yarns are those in the range of 3.0-1.0 or lower denier per filament.  Preferably, air or other gas is passed as a cooling medium across the path of the moving filamentary material adjacent the spinneret.  The convergence guide serves to minimize the effects of any pulsations in the cooling medium as well as any momentary tension fluctuations occasioned by the take-up mechanism. The yarn from the convergence guide may pass through the cell to a second guide and thence to a conditioning apparatus.  As shown, filaments are melt-spun through spinneret 4 and gathered together to form a yarn 5 by means of convergence guide 6.  The spinning cell 7 is provided with means, not shown, for passing a current of cooling fluid in non-turbulent manner at right-angles to the direction of travel of the filaments, e.g. it may be constructed as described in Specification 533,304.  The yarn passes to another guide 8, then through a moisture-conditioning chamber 9, and finally to a wind-up device.  In an example, polyhexamethylene adipamide is melted and maintained at 285 DEG  C. in an atmosphere of nitrogen. The molten polymer is pumped through a filter pack comprising sand layers and screens and then through a spinneret with 70 holes, each of diameter 0.0009 inch.  A cross-flow cooling chamber is placed 1 inch below the base of the spinneret.  The filaments solidify at about 21 inches from the spinneret and at this point they are brought together as a yarn by passing through a thread guide.  The process is applicable to the production of yarns of polyamides, polyesters, polyethers, polyacetals, polyester-polyamides, polyethylenes, polyvinyl compounds, polystyrene, and polyacrylates.  Specifications 471,590 and 577,436 also are referred to.
Patent GB-1499034-A (GB)
Title: Well bore fluids and methods for reducing water loss in subterranean formation
IPC: C09K8/08
Filed: 1975-04-05
Abstract: 1499034 Wellbore fluids CHEMICAL ADDITIVES CO 5 April 1975 14033/75 Heading E1F [Also in Division C3] An aqueous clay-free wellbore fluid comprises at least 1% of a brine forming soluble salt or mixtures of salts, and a starch ether, a starch ester or a mixture thereof for fluid loss control. The starch derivative is present in an amount of from 0.15-30.0 g/l. The starch ether is preferably cationic and contains -nitrogen or has the formula: starch - O - CR 1 R 2 R 3  where R 1 =OH, CH 2 OH or H, R 2 =H or hydrocarbyl, R 3 =hydrocarbyl H, COOH, CHR 4 OH, or NR 5 R 6 , R 4 = hydrocarbyl and R 5  and R 6 =H or hydrocarbyl. The wellbore fluid may contain hydroxyethyl cellulose as a viscosifier.
Patent GB-1387668-A (GB)
Title: Methylolglycidyl ethers and process for their manufacture
IPC: C07D303/18
Filed: 1972-03-24
Abstract: 1387668 Polyglycidyl ethers CIBA-GEIGY AG 24 March 1972 [26 March 1971] 14042/72 Heading C2C [Also in Division C3]  Polyglycidyl ethers (I) are made by reaction of (I<SP>1</SP>) with epihalohydrin, hydrogen halide being eliminated, where m is 0, 1, or 2; n is 1, 2, or 3; X is C #12  alkyl, Cl, or Br; R is an alkylene or alkenylene group of M.W. # 2000, which group can be interrupted by benzene nuclei or O atoms, and can carry halogen- or O-containing substitutents; and R<SP>1</SP> is either R or a group convertible to R by reaction with epichlorohydrin and elimination of hydrogen halide. The reaction may be performed in the presence of an alkali metal hydroxide with or without a catalyst, e.g. (CH 3 ) 4 NCl, (C 2 H 5 ) 4 NCl, or Water can be removed from the reaction mixture by azeotropic distillation. 2-5 moles epichlorohydrin may be used per OH gp. of (I<SP>1</SP>). Methylolphenols (I<SP>1</SP>) can be obtained by reacting a phenol with 1-3 moles HCHO, in alkaline medium, the resultant Na hydroxymethylphenolates being reacted with a dihalogen compound having radical R, e.g. 1,2-dibromoethane, 1,6 - dichlorohexane, 1,4 - dichlorobut - 2 - ene, α,α<SP>1</SP> - 2,3,5,6 - hexachloro - (p - or m-)xylene- 2,2<SP>1</SP> - dichlorodiethylether, ethyleneglycol - di- 21 - chloroethylether, α,# - (Cl - or Br - )- terminated polyethylene or propylene oxides, glycerol-1,3-dichlorohydrin or epichlorohydrin. Suitable phenols are: phenol, m-cresol, p-tbutylphenol, nonylphenol, dodecylphenol, 2- chlorophenol, or 2,4-dibromophenol. Examples of (I) are Uses.-Lacquers, casting, dipping, impregnating, whirl-sinter powders, moulding, injectionmoulding, bonding, adhesives, laminating, sealing, fillers and tool resins, when treated with conventional curing agents.
Patent GB-699575-A (GB)
Title: Method of preparing 1-p-nitrophenyl-2-acylamino-1,3-propanediols
Inventor: CARRARA GINO
Filed: 1950-06-06
Abstract: 1 - p - Nitrophenyl - 2 - acylamino - 1,3 - pro - panediols are prepared by treating 1-p-nitrophenyl - 2 - amino - 1,3 - propanediol suspended in water with a substantially equivalent amount of an organic carboxylic acid to form the organic salt of 1-p-nitrophenyl-2-amino-1,3-propanediol, evaporating the solution obtained to dryness, dissolving the dried salt in an anhydrous alcohol of boiling point below 160 DEG  C., evaporating to dryness in order to eliminate the water formed and isolating the 1-p-nitrophenyl-2-acylamino-1,3-propanediol obtained from the residue.  The organic acid used may be dichloracetic acid, and the diol may be the levo-rotatory pseudo form.  The alcohol boiling below 160 DEG  C. may be n-butyl alcohol.  The desired product is preferably isolated from the reaction product by fractional crystallization.  In the example l - pseudo - 1 - p - nitrophenyl - 2 - dichloro - acetamino-1,3-propanediol is prepared. Specification 652,273 is referred to.
Patent GB-848810-A (GB)
Title: Self-priming centrifugal pumps
IPC: F04D9/02
Filed: 1958-05-02
Abstract: 848,810. Centrifugal pumps. MARLOW, A. S. May 2, 1958 [Dec. 11, 1957], No. 14099/58. Class 110 (1). A self-priming centrifugal pump with its axis of rotation horizontal comprises an outer casing having inlet and outlet ports and forming a sump for retaining priming liquid, and a scroll casing within the outer casing, the scroll casing having an inlet opening connected to the inlet port of the outer casing, a discharge opening near its top, and a priming opening near its bottom, the priming and discharge openings forming the only communication between the interior of the scroll casing and the space between the scroll and outer casings. The scroll casing 37, which comprises an inlet extension 43 and an impeller chamber 53 separated by an apertured wall 41, is clamped between the end wall 16 of the outer casing 15 and a removable cover-plate 21 to which it is fixed by pins 48, 49. The spiral peripheral wall 38 of the scroll casing forms the scroll passage 62 which increases in radial depth from the leading end 63 to the discharge outlet 65 and includes two sections 62a, 62b, both of which increase in width in the direction of flow, the lower end of the section 62b being narrower than the adjacent end of the section 62a to form an offset portion. The priming opening 72, the axis of which is substantially parallel to the adjacent part of the passage, is formed in the offset portion and has a shroud 73 which extends from the walls 38 and 41. The opening is offset from the impeller chamber so that when the impeller 54 rotates it draws priming liquid, which initially reaches to the lower edge of the inlet port 24, through the opening into the chamber. The outlet port is located near the top of the side wall (not shown) of the outer casing. The cover-plate is secured to the outer casing by screws 22, 23, and includes a flanged boss 33 secured by screws 36 to the I.C. engine 11 which drives the impeller. The engine is detachably secured to a base-plate 10 by bolts 12, 13. The casing 15 and coverplate 21 may be made of lightweight material such as aluminium, and the scroll casing 37 of cast iron. In a modified scroll casing (Figs. 8 and 9, not shown) the upstream end of the second section of the passage has a slightly smaller width and radial depth than the adjacent end of the first section to define a shoulder, and an elongated priming opening having its axis substantially parallel to that of the impeller chamber is formed upstream of the shoulder. In a further modification (Fig. 11) the shroud 106 is a tubular extension containing the priming opening 104 and including a diffusing vane 107. Instead of the I.C. engine 11 other means, such as an electric motor or a pulley and belt, may be used to drive the pump.
Patent GB-690258-A (GB)
Title: Improved method of and apparatus for filling containers
IPC: B67C3/10
Filed: 1951-06-14
Abstract: 690,258. Bottling. CROWN CORK & SEAL CO., Inc. June 14, 1951 [July 13, 1950], No. 14160/51. Class 125(ii) In a rotary counterpressure bottling machine comprising a reservoir 36 connected by liquid and gas passages 156, 178 to valves 34 feeding bottles  C through filling nozzles 106, the reservoir 36 being supplied from a high pressure gas pipe 46 through a float-operated reducing valve 64, the duration of the counterpressuring stage is reduced by supplying through momentarily aligned passages of predetermined cross-section the counterpressure gas at a pressure greater than that in the reservoir so that the pressure in the bottle C will not exceed that in the reservoir. In an example the pressure in the reservoir is five to six pounds and that in the pipe 46, thirty pounds. Gas also flows through a pipe 74 and-a regulator 78 to a second reservoir 76 connected to an annular manifold 82 to which each valve 34 is connected by a pipe 84, the pressure in the manifold being maintained at eighteen pounds. The valve 34 connects the counterpressure pipe 84 to the bottle only long enough for the pressure in the latter to reach four pounds. The passages of the valve 34 are arranged to perform the following connections in sequence: connect the counterpressure pipe 84 to the bottle; connect the liquid and gas pipes 156, 178 to the bottle; snift the bottle and the gas pipe 178 to atmosphere; and, after removal of the bottle, blow out the return gas passages 117, 164 to atmosphere. A separate counterpressure pipe and the return gas passage 117 are provided in the filling nozzle and both lead into a chamber 115 which connects to the bottle through a spiral passage 114. The return gas passage 117 includes a restriction 119 to reduce the rising of liquid into the valve 34 and the other gas passages. The pipes 178 open into a separator chamber 180.
Patent GB-456760-A (GB)
Title: Improvements relating to incandescent filament electric lamps
IPC: H01K1/14
Filed: 1935-05-14
Abstract: 456,760. Electric incandescent lamp filaments. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., Caxton House, Tothill Street, Westminster, and ALDINGTON, J. N., c/o Siemens Electric Lamps & Supplies, Ltd., Dock Road, Preston, Lancashire. May 14, 1935, No. 14163. [Class 39 (ii)] The filament of an electric incandescent lamp is wound in the form of a helix of the third order in which the internal diameter of each of the three successively formed helices is equal to or approximately equal to the external diameter of the filament or helix of the immediately lower order of which it is formed.
Patent GB-816425-A (GB)
Title: Improvements in or relating to vitamin b
Filed: 1957-05-03
Abstract: The invention comprises a cupric-cuprocyanide-Vitamin B12 complex consisting of the association of 2 mols. of cupric cuprocyanide with one mol. of Vitamin B12 and having the formula C63H88O14PCo.2[Cu(CN)2]2Cu, and a process for the production of highly purified Vitamin B12 which comprises forming cupric cuprocyanide in a dilute solution of Vitamin B12 and any associated impurities by reacting a water-soluble cuprocyanide with a water-soluble cupric salt so as to precipitate a cupric cuprocyanide Vitamin B12 complex the remaining material staying in solution, and recovering highly pure Vitamin B12 from the precipitated complex by decomposing the complex.  As water-soluble cuprocyanide there may be used potassium cuprocyanide which may be reacted with cupric sulphate or cupric acetate.  The Vitamin B12 complex may be decomposed by means of a chelating agent such as the sodium salt of ethylene diamino tetra-acetic acid, the sodium salt of N - hydroxy - ethyl ethylene diamino triacetic acid, or the sodium salt of nitrilo triacetic acid, in an organic solvent such as amyl alcohol, butyl alcohol, isobutyl alcohol, a phenol or a mixture of phenol with a halogenated hydrocarbon.  Subsequently the organic solution of Vitamin B12 is extracted with water and the Vitamin B12 is precipitated by adding another organic solvent in which Vitamin B12 is insoluble.  Examples describe the production of cupric cuprocyanide-Vitamin B12 complex and the recovery of Vitamin B12 from fermentation broth.  Specification 816,426 is referred to.
Patent GB-848199-A (GB)
Title: Improvements in or relating to equipment for handling dangerous e.g. radio active substances
Inventor: DOLPHIN JOHN ROBERT VERNON
IPC: G21F7/04
Filed: 1955-02-08
Abstract: 848,199. Handling radioactive materials. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 5, 1956 [Feb. 8, 1955], No. 14257/58. Divided out of 3707/55. Class 39(4). Equipment for handling and processing radioactive substances comprises a circular inert gas-filled chamber 1 connected to a personnel corridor 3 by a normally-closed gas-tight door 4. A circular rotatable table 14 within the chamber has handling and processing equipments 38 ... 44 which are brought progressively before a front-window 12 in the chamber wall 1a having glove ports 13, 13a. The radioactive substance is introduced into the chamber through a tunnel 25 having movable end closures 26, 27, the substance being initially placed in a fume cupboard 20 and moved therefrom through a door 29a by glove ports 30 in a chamber 23. The corridor 3 permits access to the equipments 38 ... 44 and is entered through an airlock and water wash, Fig. 3 (not shown). In a modified arrangement, Fig. 5 (not shown), the tunnel 25 is replaced by a further chamber having glove ports and the table 14 has a number of processing gas-filled containers interconnected by sealable hatches, each container having a a transparent wall and glove ports registering with the ports 13, 13a, the radioactive material being transferred by the double gloves from one container to the next as the table is rotated.
Patent GB-676301-A (GB)
Title: Improved method and apparatus for oxygen cutting of metals
IPC: F23D14/42
Filed: 1949-05-27
Abstract: 676,301. Blowpipe burners. VOLCAN SOC. ANON. May 27, 1949 [May 27, 1948], No. 14265/49. Class 75(i) In a process of oxygencutting of metals by means of an oxygen cutting apparatus provided with a set of nozzles each nozzle being adapted for cutting metal of specified thickness, the oxygen supply pressure is maintained at a constant value, greater than the critical pressure, and each nozzle is formed with an oxygen outlet conduit having a convergent portion with an apical angle of substantially 15 degrees, followed by a cylindrical restricted passage and by a divergent conduit portion having an apical angle of substantially 7 degrees. Oxygen is supplied at a predetermined constant pressure to an inlet conduit 10, Fig. 2, to pass through a conduit 11 having a cut off valve 12 to a head 13 carrying a nozzle 14. The latter has a central cutting oxygen passage having a cylindrical part 36, a convergent part 37 having an included angle of substantially 15 degrees, a cylindrical orifice 38, and a divergent outlet 39 of 7 degrees apical angle. In the head 13 the oxygen passage is formed with a wide angle bend 25 in order to minimize the pressure drop therein. Oxygen passes also from the conduit 10 through a control valve 16 to a passage 17 leading to a mixing chamber 18 supplied with acetylene from a conduit 19 through a control valve 20. The mixing chamber 18 comprises an oxygen metering orifice 21, spaced acetylene metering orifices 22, and a mixing orifice 23 connected through a conduit 23a to an annular chamber 29 leading through passages 30 to discharge orifices 31 in the nozzle 14. The orifices 31 diverge at an angle of about 5 degrees with respect to the axis of the oxygen jet, and may, alternatively, be replaced by an annular outlet passage.