baber/WOPTO huggingface dataset:
Patent GB-1387208-A (GB)
Title: Power assisted barge for ocean service
IPC: B63H25/46
Filed: 1972-04-17
Abstract: 1387208 Power assisted barge R D MOSS 17 April 1972 17674/72 Heading B7V A barge 18 has cross-connected longitudinals 14, 16 and transverse 32, 34, 40, 42 tunnels at each end of the barge, the tunnels interconnecting inboard and terminating in outboard ports 36, 38, 44, 46. Bottom tunnels 24, 28 connect with the tunnels and terminate in bottom ports. The barge is power assisted by propellers 10, 12 placed to drive water in jet streams in and out of the ports and through the tunnels which are selectively closed and opened by valve 52, 54 placed in them. The barge is also manoeuvred by accentuating the effect of the jet streams with end vanes 48 and side fins 58.
Patent GB-612984-A (GB)
Title: Improvements relating to door locks
IPC: E05B65/22
Filed: 1946-06-13
Abstract: 612,984. Door locks. MORRIS MOTORS, Ltd., and COOK, R. WELTON-. June 13, 1946, No. 17676. [Class 44] A sliding-bolt door lock has a bolt actuating member 9 pivoted to the bolt 2 at 10, and normally engageable for operation of the bolt by the outside handle, but movable by the inside handle to a position in which it is not engageable. The member 9 is coupled to the inside handle by a link 16 and a slot and pin connection 17, 18, giving an amount of lost motion so that this handle is not moved by retraction of the bolt. When the inside handle is moved in the direction opposite to opening the member 9 is turned from the engageable position (shown) in which it is normally maintained by the spring 23 engaging a notch 24, to a position in which the nose 11 is not engageable by the extension 12 of the outside handle which is therefore rendered ineffective. A rubber buffer 27 is provided in front of the bolt.
Patent GB-1141166-A (GB)
Title: Improvements in or relating to vinyl lactam copolymers
Inventor: AZORLOSA JULIAN LOUIS
IPC: C08F8/00
Filed: 1966-04-22
Abstract: 1,141,166. Flocculants. GENERAL ANILINE & FILM CORP. 22 April, 1966 [18 May, 1965], No. 17707/66. Heading C1C. [Also in Divisions C3 and D2] Mineral solids are flocculated from aqueous dispersions by addition of certain modified vinyl lactam-acrylamide or methacrylamide copolymers.
Patent GB-1434439-A (GB)
Title: Piston ring assembly
IPC: F02F5/00
Filed: 1974-04-23
Abstract: 1434439 Piston rings MIDLAND-ROSS CORP 23 April 1974 [25 May 1973] 17739/74 Heading F2B In a piston, e.g. for a gas compressor, in which split rings are biased outwardly and twisted under their own resilience, a pair of rings 28, 30 occupy a common groove 18 and form line contact seals 44, which may be spaced by an oil-retaining cavity 50. Further line contact seals are formed at edges 46 and 48. The gaps in the rings are preferably staggered by 180 degrees.
Patent GB-892192-A (GB)
Title: Water-insoluble disazo-dyestuff derived from diamino-tetrachloro-diphenyl and process for its manufacture
IPC: C09B35/10
Filed: 1959-05-25
Abstract: The invention comprises the dye of formula <FORM:0892192/IV (c)/1> It is made by coupling a tetrazonium compound of 4,41 - diamino - 2,21 5,51 - tetrachloro - di - phenyl with 1-acetoacetylamino-2,4-dimethylbenzene and may be obtained in substance, on the fibre or on another substratum, Yellow dyeings and prints are obtained on vegetable fibres and fibres of regenerated cellulose.  The dye is also used to colour natural and synthetic resins, in graphic printing and in lacquer and paper industries.  An example is provided of the preparation of the dye.
Patent GB-681166-A (GB)
Title: Machine for operating in rock, coal and like earth
IPC: E21B7/02
Filed: 1949-07-05
Abstract: 681,166. Drill trollies. HARDYPICK, Ltd., and HURD, E. W. Oct. 5, 1950 [July 5, 1949], No. 17761/49. Class 124. A coal or rock working machine has a jib carrying a drill unit and is turnable about a vertical axis, movable in a vertical plane, movable about its own axis and the drill unit is pivotable about an axis normal to the axis of the jib. As shown, a track laying vehicle driven by two motors 21 has a quadrant 14, horizontally disposed, and a turntable 16 mounted above it for rotation on rollers 15 by a handwheel 17 and pinion 20. A jib cradle 25, mounted on brackets 24 on the turntable, carries a hollow jib shaft on which is mounted a double boom, jib 41 having journals 42 in which is pivoted a self-contained drill unit 44. The angular position of the drill unit is controlled by a rod 47 connected through a spring buffer. to a movable internally screwed rod which latter co-operates with an externally screwed rod rotated by a handwheel 51. The hollow jib shaft mounted in the jib cradle is rotatable about its own axis by a hanlwheel 40 operating a worm gear. The jib cradle is pivoted in a vertical plane about trunnions 26 by a hydraulic jack 28, the cylinder of which is pivotally connected to the turntable at 29 and the piston rod 30 to a bracket 32 fixed to the cradle. If the axis of the drill bit 53 passes through the axis of the journals 42 and is arranged near a boundary of the drill unit, the thrust from the drilling is taken by the journal and the tool operates with the minimum headroom. The Provisional Specification also includes the use of a .single motor for driving the track-laying vehicle.
Patent GB-1155246-A (GB)
Title: Dimerisation of Olefines.
Inventor: SAMPSON ROY JOHN
IPC: C07C2/10
Filed: 1967-04-18
Abstract: 1,155,246. Dimerizing olefins. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 April, 1968 [18 April, 1967], No. 17780/67. Heading C5E. Olefins are dimerized or codimerized by contact with a catalyst comprising 3-20 wt. per cent of a nickel compound on a silica/magnesia support comprising 10-40 wt. per cent magnesia. Suitable nickel compounds are the oxide, sulphate and chloride, and the support may also contain 0À5-5 wt. per cent of a halide. Examples describe the dimerization of propylene, and a mixture of propylene, trans-butene- 2, cis-butene-2 and isobutene.
Patent GB-502065-A (GB)
Title: Improvements in and relating to cooling apparatus for tempering glass
IPC: C03B27/04
Filed: 1938-06-15
Abstract: 502,065. Tempering glass. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.- GOBAIN, CHAUNY, & CIREY. June 15, 1938, No. 17793. Convention date, July 27, 1937. [Class 56] A cooling-apparatus for use in tempering glass comprises nozzles for the cooling medium arranged in pairs and so directed that the jets from them impinge on one another, and means for varying cyclically the supply of cooling-medium to each nozzle in such a way that the combined jet from a pair of nozzles moves over an area of. the surface of the glass without any of the nozzles being moved. In the construction shown, the two jet nozzles T<1>, T<2> are inclined to one another so that the jets issuing. from them form a combined jet 6. The supply of cooling medium to each ozzle may be controlled by rotating valves which open and close alternately the passages to the nozzle, and these valves may be so arranged that the supply of medium to one nozzle ceases while the supply to the other nozzle is at a maximum. In this case, the combined jet 6 will move over the surface of the glass O between the directions 1-1<1> and 2-2<1>. The nozzle orifices may be circular or may be slots of any desired length. In another construction the nozzles may be annular and concentric and formed with a number of orifices so that the combined jet will sweep over a circular area of the glass.
Patent GB-813185-A (GB)
Title: Improvements in or relating to devices for measuring liquid flow
IPC: G01F1/58
Filed: 1956-06-08
Abstract: 813,185. Electric tests. PHILLIPS ELECTRICAL INDUSTRIES Ltd. June 8, 1956 [June 13, 1955], No. 17796/56. Class 37. In an induction flowmeter in which, to avoid polarization of the electrodes, an alternating field is used, this field is produced by a rotating permanent magnet. The magnet may be a permanently magnetized ferromagnetic compound having a high coercive force and may be electrically substantially non-conductive. The shape of the magnet, which is a sintered metal compound is shown in the Figure, magnetization being such that a pair of poles are located opposite each other on the inner periphery. The rotating magnet may be coupled to a switch 7 so that voltages induced between the electrodes by coupling with the field are prevented from affecting meter 8.
Patent GB-1533859-A (GB)
Title: Headgear incorporating optical display systems
IPC: B64D45/08
Filed: 1975-04-29
Abstract: 1533859 Head-up display ELLIOTT BROS (LONDON) Ltd 27 April 1976 [29 April 1975] 17812/75 Heading G2J A helmet has a display device (light-emitter diode array 33) collimated and presented to the wearer by a prism 37 and the visor 29. The optics are such that spherical aberration introduced by the visor is corrected and preferably astigmatism is also corrected e.g. by modifying the otherwise plane internally reflecting surfaces 41, 43 of the prism.
Patent GB-583998-A (GB)
Title: Improvements relating to the treatment of curde tar
IPC: C10C1/00
Filed: 1944-09-19
Abstract: 583,998. Treatment of crude tar. MIDLAND TAR DISTILLERS, Ltd., BROUGHALL, F. G., and SCOTT, R. Sept. 19, 1944, No. 17889. [Class 55(ii)] A method of treating crude coal tar, containing ammonium chloride in aqueous solution comprises the removal of the solid matter from the tar and thereafter mechanically separating the tar and aqueous solution and finally distilling the tar. The crude tar, preferably warmed, is filtered and the filtrate allowed to stand, the aqueous solution settling to the top and being decanted off, leaving the tar. The separation may be effected by using a basket, type centrifuge in which the solid matter is retained, or by using a high speed bowl-type centrifuge, in which the solid matter is deposited on the walls, the aqueous liquid separating immediately thereafter from the tar. In a further means the crude tar is diluted with a light hydro-carbon oil in sufficient quantity to cause the solid matter to settle out from the mixture, the tar and aqueous liquid also separating out in different layers.
Patent GB-1204964-A (GB)
Title: Photographic silver halide colour development
Inventor: MACDONALD ERIC
IPC: G03C7/32
Filed: 1968-04-16
Abstract: 1,204,964. Photographic silver halide colour development. ILFORD Ltd. April 1, 1969 [April 16, 1968], No.17907/68. Heading G2C. [Also in Division C2] A process of colour development of colour photographic material wherein at least one silver halide emulsion layer containing a developable silver halide is colour developed to yield a dye image, the developed silver and the residual silver halide being removed, comprises developing the photographic material with a colour developing solution in the presence of an image-forming colour coupler and as a competing coupler an indazolone compound of the formula where at least one of the symbols R 1 , R 2 , R 3  and R 4  represents a water-solubilizing group (e.g. -COOH, -SO 3 H, -CH 2 COOH and CH 2 SO 3 H) and the remainder represent hydrogen or substituent groups, the indazolone compound (e.g. where R 1  is COOH and R 2 , R 3  and R 4  are hydrogen) being one which will couple with the oxidized developing agent to form a dye having no affinity for gelatine and which will wash out of the film into the developing solution or a subseauent processing bath. The indazolone compound is preferably present in the colour developing solution at a concentration of 0À5 to 5g. per litre. The compounds 5-chloroindazolone-4-carboxylic acid and indazolone-5- carboxylic acid are disclosed.
Patent GB-581271-A (GB)
Title: Improvements in or relating to the production of hydrocyanic acid and to catalysts therefor
IPC: C01C3/02
Filed: 1944-09-20
Abstract: <PICT:0581271/III/1> In the production of hydrocyanic acid by reacting nitric oxide (formed for example by the catalytic oxidation of ammonia with excess air) and a hydrocarbon in the vapour phase in the presence of a platinum metal catalyst, the hot gaseous mixture is passed in contact with a mass of substantially non-porous refractory material 6, free from catalyst, and thence into contact with a platinum metal or alloy thereof supported on a substantially non-porous refractory material 5.  An alloy of 80 per cent. platinum and 20 per cent. rhodium may be used, and the refractory material may consist of beryl or fused or vitreous silica or alumina.  The layer of catalyst-free material may be 1/2 -6 inches thick, and the gases contacted with it at a temperature less than 800 DEG C., preferably 400 DEG -600 DEG C.  In an alternative arrangement the layers 5 and 6 are separated by a gas space. Specifications 446,277 and 459,180 are referred to.
Patent GB-719887-A (GB)
Title: Improvements in or relating to penicillin salts of n:n-disubstituted ethylene diamines
IPC: C07D499/24
Filed: 1952-07-16
Abstract: Biologically active salts of penicillin with an organic base of general formula R CH2 NH CH2 CH2 NH CH2 R1 where R and R1 are different and each represents a phenyl or hydroxy- and/or alkoxy-substituted phenyl radical are prepared by mixing in any order, but preferably simultaneously and with agitation, aqueous solutions of water-soluble salts of the amine, e.g. hydrochloride with water-soluble penicillin salts, e.g. alkali metal salts.  The bases are prepared by heating an aromatic aldehyde with excess ethylene diamine (2-5 mols.), reducing the so-formed Schiff's base catalytically (e.g. platinum, palladium or nickel, preferably Raney nickel), removing excess ethylene diamine and treating with a second aromatic aldehyde which is likewise catalytically reduced.  Bases specifically mentioned are N - benzyl - N1 - (3 - ethoxy - 4 - hydroxybenzyl) ethylene diamine and N-benzyl - N1 - (2 - hydroxybenzyl) ethylene diamine.  The penicillin may be any form of penicillin, e.g. penicillin G, F, dihydro F, X and O, or a mixture thereof.  The salts may be used in the recovery of penicillin from fermentation broths.  The acidified broth is extracted with a water-immiscible solvent, re-extracted into dilute alkali or dilute buffer and the disubstituted ethylene diamine added to precipitate the penicillin.  The penicillin salts may be suspended in an injectable medium (see Group VI).ALSO:A therapeutic preparation comprises a salt of penicillin with an organic base of general formula R.CH2 NHCH2 CH2 NHCH2R1 where R and R1 are different and each represents a phenyl radical or a hydroxy-and/or alkoxy substituted phenyl radical (see Group IVb), suspended in an injectable medium such as water or oil.  Specified salts are the salt of penicillin with N-benzyl-N1-(3-ethoxy-4-hydroxy benzyl) ethylene diamine and N-benzyl-N1-(2-hydroxy benzoyl) ethylene diamine.  The penicillin may be any therapeutic form of penicillin, e.g. penicillin G, F, dihydro F, X or O, or a mixture thereof.
Patent GB-596018-A (GB)
Title: Improvements relating to combination hand tools
IPC: B21D21/00
Filed: 1945-07-13
Abstract: 596,018. Punching ; shearing ; angular bending. HARRISON, J., and SANDERS BROS. (SEVENOAKS), Ltd. July 13, 1945, No, 17973. [Class 83 (iv)] A hand-operated machine for punching, shearing and bending a metal &c. strip comprises a screw-operated punch 4 co-operating with a die 7. A stationary shear blade 9 on the side of a base 1 engages a shear blade 10 on a pivoted hand lever 11. The lower edge of the lever 11 is shaped to co-operate with a bending die 14. An edge gauge 19 secured by a screw 20 may be positioned in alignment with the punching or bending tools.
Patent GB-1007882-A (GB)
Title: Stabilization of diaminotoluene
Filed: 1964-04-30
Abstract: Molten diaminotoluene is stabilized by maintaining an atmosphere of hydrogen above it. Additionally, hydrogen may be passed through the molten compound.  The treatment may be effected at 80-120 DEG  C. under pressure in a carbon steel container. Comparative experimental results are given.
Patent GB-879262-A (GB)
Title: Improvements in or relating to work tables
Inventor: SHEPHERD ROBIN BRUCE
IPC: B21D28/26
Filed: 1958-06-06
Abstract: 879,262. Punching-apparatus. KOLSTERBRANDES Ltd. June 6, 1958, No. 18146/58. Class 31 (2). [Also in Groups XXXVIII and XL (b)] In control apparatus for controlling the relative positions of two devices, e.g. a printed circuit board and a punch, a photo-electric detector arrangement detects opaque marks on a transparent plate mounted on a carriage to which the circuit board is attached and either brings into operation the punch, or in cooperation with carriage movement limit switches produces a change in the direction of drive of the carriage. A punch P operates on a circuit board 14 which is attached by arms 11 to a carriage 7 which can be driven along rods 6 in the Y direction by a velodyne VY. The rods are mounted in turned-up flanges 5 of a second carriage 4 which can be driven along rods 3 in the X direction by a velodyne VX. A photo-cell 9 receives light from a source 10 via a transparent plate 8 on which are positioned opaque markings a-l. Limit switches MS1 and MS2 are operated by carriage 7 in its extreme positions MS5 is operated by carriage 4 in the extreme Xb direction and MS4 is operated when a projection 20 on carriage 4 is almost in the extreme Xa direction. In operation the velodyne VX is energized and drives the carriage in the Xa direction until the opaque mark a interrupts the light incident on the photo-cell, the increase in cell resistance balances a bridge circuit which supplies via an amplifier the velodyne field coils. At balance the bridge circuit output falls to zero whereby the motor ceases to operate and a control relay also operated by the amplifier output releases and in conjunction with the operated condition of limit switch MS2 changes over the amplifier output to velodyne VY. The bridge circuit is.then unbalanced to provide an output from the amplifier to drive the carriage in the Ya direction, the unbalance condition being removed after a period sufficient for the carriage to be moved past the opaque mark a. The carriage is halted by the opaque mark b and with no limit switches operated the punch P is brought into operation and punches a hole in the circuit board at b1, when the punch is retracted the bridge is again unbalanced to commence the drive to position c at which point the punch operates on position c1 of the circuit board. At position d the bridge is balanced and stops velodyne VY, in addition switch MS1 operates and the combined effect changes over the amplifier output to velodyne VX and the carriage is driven to e. In this manner the carriage is driven along the dotted path indicated. Before arrival at opaque mark l projection 20 operates MS4 and at l velodyne VX is energized and drives the carriage in direction Xb to the home position, the operation ceasing when switch MS5 is operated.
Patent GB-348921-A (GB)
Title: Manufacture of easily soluble salts of 3-acetylamino-4-hydroxy-benzene-arsonic acid
IPC: C07F9/74
Filed: 1930-06-13
Abstract: The mono- and disalts of hydroxyethylamine with 3-acetylamino-4-hydroxyphenylarsinic acid, which possess therapeutic properties, are prepared by interaction of the two components.  The reaction may be effected in aqueous solution and the products either isolated by crystallization or the solutions employed as such, in which case a little sodium sulphite may be added to stabilize them. An example is given of the treatment of one molecular proportion of the acid with either one or two molecular proportions of the base in boiling aqueous solution, to which a mixture of acetone and alcohol is then added and the salts allowed to crystallize.  Specification 224,764, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1209418-A (GB)
Title: Process for preparing n-alkyl chlorides
Inventor: BOCHNER MARTIN BARRY
IPC: C07C17/16
Filed: 1969-04-09
Abstract: 1,209,418. n-Alkyl chlorides. AMERICAN CYANAMID CO. 9 April, 1969 [10 April, 1968], No. 18193/69. Heading C2C. A process for preparing an n-alkyl chloride comprises reaction of an n-alkanol with phosphorus trichloride, characterized by adding to the phosphorus trichloride (a) an n-alkanol containing from 4 to 18 carbon atoms and (b) dimethylformamide at a temperature such as to provide a liquid reaction mixture, the amount of n-alkanol so added being such as to provide a mole ratio of n-alkanol to phosphorus trichloride in the reaction mixture of from about 1À6 to about 3À0 and the amount of dimethylformamide so added being such as to provide a mole ratio of dimethylformamide to n-alkanol of from about 0À1 to about 1À0, heating the reaction mixture at a temperature from about 75‹ C. to about 100‹ C., and recovering the n-alkyl chloride product.
Patent GB-214885-A (GB)
Title: Improvements in and relating to tanks for refrigerating chambers
IPC: F25D5/00
Filed: 1923-07-14
Abstract: 214,885. McCaney, A. J., and Winchester Refrigerator Co., Ltd. July 14, 1923. Cold storage rooms.-A tank for freezing-mixture and the resulting brine, for use in refrigerators &c., comprises an integral structure made by uniting an upper four-walled member 1 to a lower tank 2, a partition 3 being permanently secured between the. two parts by welding at the seam 4. The ice and salt are charged into the upper compartment, and the brine overflows through a raised duct 9 preferably formed by a plate riveted to one side of the tank 1 and to the partition 3. A guard plate 10 riveted to the tank 1 protects the edge of the duct. The sides and ends of the structure are preferably curved, and the structure is fitted with draw-off pipes 14, 16, cleaning covers 18, 22 and a draining-tap 20. The upper part may be divided by a partition 5 reaching down to about the level of the overflow, to enable the apparatus to be used with a smaller quantity of ice &c.
Patent GB-674400-A (GB)
Title: Treatment of monazite
IPC: C22B59/00
Filed: 1950-07-21
Abstract: Ground monazite is attacked by, say 55-70 per cent, caustic soda solution near the boiling point, and the reaction mixture is diluted at above 55 DEG C, with water or a mother liquor from a subsequent operation to produce a solution of sodium phosphate, which is crystallized, and insoluble thorium, uranium and rare earth hydroxides which are subsequently separated.  For the separation, the hydroxides are washed with dilute caustic soda solution-the wash liquor being used in the dilution operation -to reduce the P2O5 content to less than 1 per cent by weight of the hydroxides, and treated by hydrochloric, nitric or sulphuric acid to effect separation of the rare earths from the uranium and thorium.  The acid treatment comprises (a) complete dissolution followed by neutralization with rare earth carbonates to pH about 4 to precipitate thorium, or (b) addition of acid to pH about 3.2 to dissolve the rare earths leaving the thorium and uranium insoluble. During the acid extraction, iron is oxidized. The rare earth chloride, say, solution may be evaporated to dryness, or the carbonates precipitated by sodium carbonate.  The thorium concentrate may be dissolved in hydrochloric or nitric acid, and thorium sulphate then precipitated by sulphuric acid. The mother liquor is treated with potassium sulphate to precipitate the remainder of the thorium as thorium-potassium sulphate, and residual rare earths.  The double salt is attacked by caustic soda, and the hydroxides returned to the acid treatment stage, (a) or (b) above.  The mother liquor containing uranium is treated with sodium carbonate, and the uranium precipitated by caustic soda.  The caustic soda mother liquor from the crystallization of the sodium phosphate may be used in the dilution operation, or may be concentrated for reuse in the attack on the monaazite.