baber/WOPTO huggingface dataset:
Patent GB-1387866-A (GB)
Title: Aerofoil members for gas turbine engines
IPC: F01D9/04
Filed: 1972-06-21
Abstract: 1387866 Turbine stator blades ROLLS-ROYCE (1971) Ltd and LOUGHBOROUGH UNIVERSITY OF TECHNOLOGY 25 May 1973 [21 June 1972] 28936/72 Heading F1T The invention relates to a stator vane of a gas turbine engine, the stator vane comprising a root portion and a shroud portion, one of which has a concave supporting surface formed thereon and the other of which has a convex supporting surface formed thereon, the two supporting surfaces being at that side of the vane which faces downstream. The turbine inlet guide vane assembly shown comprises a stage of guide vanes 14 each comprising a root portion 44 and a shroud portion 22, the root portion being formed at its downstream side with a concave recess 46 which engages with the face 74 of a semi-cylindrical bar 70 which is pivotally mounted on a pin 72 mounted in a ring member 50 of inner stator structure. The shroud portion 22 is formed at its downstream side with a convex surface 24 which abuts in line contact with the flat upstream facing surface of a ring member 26 of outer stator structure. Thus in operation the guide vane may rotate about the point P, the centre of curvature of the concave surface 46, the convex surface rolling on the flat surface of the ring 26. The inner stator structure comprises members 48, 52, 56, 58 and 50 secured together, the member 52 being formed at its periphery with teeth 60 of triangular form having a convex surface 64. Each tooth is received within a recess 62 of a vane root portion 44, the convex surface bearing against a plane surface 66 of the root portion 44 of an adjacent vane whereby the vane can rotate on the convex surface. The outer stator structure comprises members 28, 30, 26, the member 30 being formed with teeth 38 similar to the teeth 60 of member 52. The convex surface 40 of a tooth 38 bears against the plane surface 42 of a vane shroud portion 22 permitting angular movement of the vane in the plane of the guide vane assembly. The guide vanes may be formed of silicon nitride, silicon carbide or metal.
Patent GB-631593-A (GB)
Title: An improved pump for operation with liquids having poor lubricating properties
IPC: F04B1/04
Filed: 1946-09-28
Abstract: 631,593. Bearings. DOWTY EQUIPMENT, Ltd., and CAREY, F. H. Sept. 28, 1946, No. 29011. Drawings to Specification. [Class 12 (i)] [Also in Group XXVIII] In a high-pressure fuel pump suitable for a gas turbine of an aircraft and comprising a radial cylinder assembly rotatable about a valve spindle formed with suction and outlet ports, and a stationary track ring operating preferably through slipper bearings of the Michel bearing type to reciprocate pistons in the cylinders, the eccentricity of the ring determining the stroke of the pistons, seizure of the pump is prevented by forming the central bearing with parts which in the event of an excessive rise in temperature will fuse and so remove the cause of the rise, the pump therafter continuing to work, but at a reduced efficiency. The valve spindle, the slipper bearing surfaces and/or the cylinder surfaces are coated electrolytically with a layer of lead flashed with indium which in the case of the valve spindle has a thickness between 0.0003 and 0.0015 inch. The layer, being soft also serves to absorb foreign particles that have found their way into the pump.
Patent GB-338280-A (GB)
Title: Improvements in or relating to show cases
IPC: A47F3/00
Filed: 1929-09-25
Abstract: 338,280. Courtney, Pope & Go., Ltd., and Lyons, C'. Sept. 25, 1929. Showcases; shelves.-A collapsable showcase consists of five rectangular side members hinged together and one removable member so that they can be folded up. Fig. 2 shows a vertical section of such a case consisting of a base 2, a back 3 hinged to it as at 8, a top 1 hinged to the back, two sides 4 hinged at the level of the base 2, and a front 5 held in vertical grooves in the edges of the side members. The top, side, and front members consist of framed glass panes, For transport, the sides are folded down on the base 2, the back 3 is folded on the sides, and the top 1 is folded on the back. Clips 9 secure the back 3 and sides 4 together. The case shown has traysupporting frames 10, Fig. 4, with runners 11, mounted by means of loosely-fitting dowels 12 in the base 2. Their tops are secured by pins 13 on springs 14 on the underside of the shelf 15. Sliding doors 16 afford access to the shelf. Detachable feet 18 are fitted in sockets 19.
Patent GB-744800-A (GB)
Title: A new or improved attachment for coat hangers to enable additional garments to be suspended therefrom
IPC: A47G25/18
Filed: 1953-10-21
Abstract: 744,800. Coat hangers. COLLINS, M. M. Sept. 1, 1954 [Oct. 21, 1953], No. 29097/53. Class 52(5). A carrier attachment for a coat hanger comprises a laterally extending bar detachably supported on the end of the yoke of the hanger, by a clip or socket, the bar having spaced hooks extending in planes parallel to the plane of the yoke. As shown, a carrier bar 1 of moulded plastic has hooks 11 and a central loop 4 to receive the end of the yoke 2 which is secured by a screw 7 adjustable in a metal nut 10 moulded into the base of the loop.
Patent GB-503188-A (GB)
Title: Improvements in the canopies or hoods of domestic fire grates
IPC: F24B1/195
Filed: 1938-10-07
Abstract: 503,188. Canopies for domestic fireplaces. DYER, A. E., and PARSONS, W. G. Oct. 7, 1938, No. 29101. [Class 126] In a domestic fireplace, a detachable sheet-metal hood or canopy c is detachably mounted on a sheet-metal plate a so as to cover an opening b in the latter, a flange e on the upper edge of the hood and lateral flanges k on the side wings d of the hood engaging with corresponding recesses f, h formed bybending the upper marginal edge of the opening and tongues g on the side marginal edges of the opening. The plate a is mounted between the tiled surround and the lateral wings of the firebrick back of the fireplace. An angle-iron p may be attached to the plate a to support a cement filling behind the tiled surround, or may be replaced by a horizontal bead which rests against the lower edges of the tiles at the top of the fireplace opening. The lower edges of the hood are beaded and strengthened by wire insertion.
Patent GB-904364-A (GB)
Title: Improvements in photographic processes
IPC: G03C8/10
Filed: 1958-09-11
Abstract: g -(n-Pentadecylphenoxy) butyronitrile is prepared by refluxing 3-n-pentadecylphenol with sodium hydroxide and xylene, drawing off separated water, dropping in g -chlorobutyronitrile over a one hour period, refluxing again, distilling off the xylene, pouring the product into acidified hydrochloric acid and purifying the separated crystals.  It is reduced in presence of alcohol, anhydrous ammonia and activated nickel by hydrogen under pressure and cooling conditions to produce S-(3-n-pentadecylphenoxy) butylamine and this is heated with phenyl-1-hydroxy-2-naphthoate to form 1 - hydroxy-N-[S-(3-pentadecylphenoxy) butyl]-2-naphthamide.  1-Hydroxy - 4 - dodecyloxy-2-naphthoic acid is prepared by reacting 1:4-dihydroxy-2-naphthoic acid with lauryl alcohol in the presence of hydrogen chloride gas.  1-Hydroxy-4-acetoxymercuri - 2 - naphthoic acid is prepared by combining 1-hydroxy-2-naphthoic acid with mercuric acetate.  4:41 - (p - Octadecyloxyphenylmethylene) bis [1 -phenyl - 3 - (3:5-di-sulphobenzamido)-5-pyrazolone] tetra potassium salt is prepared by heating 1-phenyl-3-(3:5-disulphobenzamido)-5-pyrazolone dipotassium salt with 4-octadecyl benzaldehyde (itself formed by adding p-hydroxybenzaldehyde to sodium ethoxide and subsequently heating with 1-bromo-octadecane) in aqueous ethanol containing pyridine, cooling and collecting the precipitated crystals.ALSO: 2-[3:5- disulphobenzamido]4- (4-hydroxy-2-pentadecylphenylazo) -5-methyl phenol dipotassium salt is prepared by adding isoamyl nitrite to a solution of 4-amino-3-pentadecylphenol with hydrochloric acid in propanol, adding the resulting solution to 2-(3:5- dichlorosulphonylbenzamido)- 5-methylphenol in aqueous pyridine and subsequently salting out and reducing the precipitated product. 2-(3:5- disulphobenzamido)-5- methyl-4-(4-octadecyloxyphenylazo) phenol dipotassium salt may be prepared similarly using 4-octadecyloxyaniline instead of 4-amino-3-pentadecylphenol.  a -Benzoyl-a -[4- (4-hydroxy-2- pentadecyl) phenylazo]-4-(3-sulphobenzamido) acetanilide sodium salt is prepared similarly using a -benzoyl-4-(3-chloro-sulphonylbenzamido) acetanilide instead of 4-amino-3-pentadecylphenol and omitting the step of reducing.  1-Phenyl-3- (3:5-disulphobenzamido)-4- (4-hydroxy-2-pentadecyl phenylazo)-5-pyrazolone di-potassium salt is prepared similarly using 1-phenyl-3- (3:5-disulphobenzamido)-5- pyrazolone di-potassium salt instead of 4-amino3-pentadecylphenol and also omitting the step of reducing.  1-Hydroxy-4- \sT4-\sT 3-methyl-4- [3-(2:7-disulphonaphthyl) azo]-1-pyrazolyl\sT phenylazo\sT-N-[S-(3- pentadecylphenoxy) butyl]-2-naphthamide di-potassium salt is prepared by diazotising 1-(4-aminophenyl)-3- methyl-4-[3-(1:5-disulphonaphthyl) azo]-5-pyrazolone disodium salt (which is itself prepared from the corresponding nitrophenyl compound), and coupling the product with 1-hydroxy-N-[S-(3- pentadecylphenoxy) butyl]-2-naphthamide (see Group IV(b)).
Patent GB-227248-A (GB)
Title: Improvements in and relating to oil fuel burners
IPC: F23D5/00
Filed: 1923-11-19
Abstract: 227,248. Quinn, J. C. Nov. 19, 1923. Atmospheric vapour burners; vaporizing- apparatus. - Oil fuel' supplied through a pipe 21 is vaporized in a chamber formed between a grooved baseplate 55 and a loose annular cover-plate 62. The base - plate is secured by binding posts 47 to a rightangled annular flange 48 which is secured to the furnace grate bars 40 by bolts 41. A cylindrical wall 43 cast integrally with the base-plate is formed with upwardly projecting bars 44 which, together with a shoulder 51 on the flange 48, support a cone 52 by its three depending doublecam shaped edges 67'. A tubular member 53 also cast integrally with the base-plate extends upwardly through the cone 52 and is fitted with a detachable cap 54. The cover-plate is formed on its lower surface with a ridge 64 which is pressed into wet cement placed in the outer groove 56<1> in the base-plate. The cover-plate is then removed until the cement has hardened. The oil entering through the pipe 21 passes through a channel 58 into the inner groove 56 and to the central opening in the plate 62. A burning oily rag thrown on the plate 62 ignites the oil, and after the burner parts have been heated smokeless combustion ensues above the cone 52. The fuel is vaporized by heat conducted from the flame by the tubular member 53, by heat radiated from the tube 53 and the cone 52, and by the heat communicated by the incoming air flowing in contact with the cone 52 and plate 62. This air supply, which may be regulated by turning the cone 52, mixes with the oil vapour, but is insufficient to allow its combustion until the mixture is met by additional air ascending through the tubular member 53 and issuing beneath the cap 54 in a horizontal direction. The additional air causes the flame to spread outwardly. The burner is fitted with an oil overflow pipe 28.
Patent GB-196947-A (GB)
Title: Improvements in apparatus for compressing and moulding meal and other soft or plastic materials and substances
IPC: B30B11/22
Filed: 1921-11-03
Abstract: 196,947. Sizer, A. W., and Sizer, S. R. Nov. 3, 1921. Extrusion machines for moulding meal &c., of the type in which the material fed to the inside of a cylinder C is extended hy a pressing element through radial ports c and is subsequently cut off by knives g<2>, g<3> mounted on a rotatable ring G, the surfaces D<1> of the pressing element are formed eccentric with its centre of rotation and rotate in contact with the interior of the cylinder. The pressure element comprises two members D, D' formed in one piece, or pivoted separately to a central block piece f, Fig. 4, in a shaft F rotated through bevel gearing from a shaft K. The members D, D' are curved from front to back so as to form a gradually dimminishing space between their peripheries and the inside of the drum, and may be provided with removable wearing pieces. The drum C is mounted on a base piece B made hollow to allow provision of a heating or cooling medium, and is covered with a ring E having an annular wall e, which supports a ring G carrying the cutting knives g<2>, g<3> and rotated by the shaft E. The material is fed through the ring G and is distributed by a cone H, wearing rings J, J<1> being provided on both sides of the pressure element. In a modification, Fig. 6, the pressure, element is stationary on a pillar N, whilst the drum C is rotated by a hollow shaft O.
Patent GB-710575-A (GB)
Title: Process of preparing salts of phosphoric acid
Inventor: LEY HELLMUT
IPC: C01B25/30
Filed: 1951-12-13
Abstract: Raw phosphate is reacted with sulphuric acid, in accordance with the normal process for the production of superphosphate fertilizers, to produce a mixture of monocalcium phosphate and calcium sulphate, the mixture is worked up in aqueous suspension with alkali metal sulphate to a primary alkali metal phosphate solution, and the primary, or after neutralisation, secondary or tertiary, phosphates are crystallized, the separated mother liquor containing alkali metal sulphate being recycled to react with the monocalcium phosphate-calcium sulphate mixture.  The mother liquor, prior to recycling, may be reacted with sulphuric acid to convert secondary and tertiary alkali metal phosphates to the primary phosphate.
Patent GB-243900-A (GB)
Title: Improvements in or relating to means for securing and locking electric lamps in position
IPC: H01R33/97
Filed: 1924-12-06
Abstract: 243,900. Illingworth, J. Dec. 6, 1924. Bayonet - joint fastenings.-A device for locking bulbs in holders comprises a split ring 7 mounted on the lower part of the holder and having a tapering screw-threaded outer periphery upon which is mounted a screw-threaded ring 12 adapted to compress the split ring so that it locks the pins 10 of the bulb in the holder. The pins 10 are embraced by the split in the ring and by a vertical slot in it diametrically opposite the split. When the split ring is contracted, an internal projection on it engages in one of the bayonet slots to prevent it from rotating. Manipulation of the ring 12 by the fingers is prevented by a single or double knife-edge 13, Figs. 1 and 8. A ring having a single knife-edge is turned by a key 16, Fig. 6, having a pin 19 adapted to engage holes 14 in it, and a ring having a double knifeedge is provided with holes 22 for engagement by a pin 24 on a key 23, Fig. 10.
Patent GB-294522-A (GB)
Abstract: 294,522. Kolitsch, H. July 25, 1927, [Convention date]. Feeding articles in succession by moving surfaces coacting with stationary guide s.-Apparatus for delivering pieces of material of any kind from a mass comprises a moving support on to which the materials are charged and stationary guide surfaces against which the pieces are driven by relative movement between the supporting surface and the guides, the shape of the guides being such as to approach progressively the direction of movement of the support so as to accelerate the speed of the pieces. The construction described comprises a horizontal rotating disc 3 with a central deflecting cone 4 on to which the mass is charged by a pipe 1. Guide arms 5 are pivoted to the bottom of the pipe and held by ties 6. A ring 8 maintains the guides in their relative positions and is secured by ties 7 which may include adjustable springs 14 to allow vibration. The guides are curved so as to approximate increasingly to the direction of movement of the disc as they approach the circumference. At the edge of the disc, each guide carries a stirrup 9 carrying a delivery roller 12 which is driven from the disc by two rollers 11 carried on a spindle 13. Alternatively, the end of the guide may have a slight reverse curve as shown in Fig. 2a. Preferably, the operative side of the guides is stepped or may be provided with rollers or roughened surfaces. Short plates arranged in echelon may be used instead of guide arms. The support may be in the form of a band, drum or other rotating body. The Specification as open to inspection under Sect. 91 (3) (a) comprises also constructions in which the support is stationary and the guides moving, or both are moving in opposite directions or in the same direction at different speeds. This subject-matter does not appear in the Specification as accepted.
Patent GB-294707-A (GB)
Abstract: 294,707. Davies, G., Ridge, A. H., and Royer, G. May 3, 1927. Cases. - In a gas lighter, an electric cell or battery g is provided with a projecting terminal h by means of which it may be moved in the metal casing d against the action of a rubber spring cushion l for engaging the terminal j with a contact stud k to close the circuit through an igniting wire b in a gas collector a. The cushion is secured to an insulating disc m carrying the stud k, which contacts with a stud n, carried by an insulating disc o and connected to the wire b. The terminal h makes contact with the lid e of the casing d. The gas collector a serves as a support.
Patent GB-962461-A (GB)
Title: Substituted 5h-dibenz[b, f] azepines and processes for their production
IPC: C07D223/26
Filed: 1960-08-29
Abstract: The invention comprises substituted 5H-dibenz[b, f]azepines of the general formula: <FORM:0962461/C1/1> wherein Y and Z each represent a halogen or hydrogen atom, one of R1 and R2 represents a methyl group and the other a hydrogen atom, and R3 and R4 represent C1- 4 alkyl or C2- 4 alkenyl radicals, or jointly represent a C2-8 alkylene chain other than a hexamethylene chain, and the preparation thereof by (1) reacting a dibenzazepine of the general formula: <FORM:0962461/C1/2> with a reactive ester of a basic alcohol of the general formula: <FORM:0962461/C1/3> or (2) reacting a reactive ester of a hydroxy compound of the general formula: <FORM:0962461/C1/4> with a secondary amine of the general formula: <FORM:0962461/C1/5> or (3) heating a compound of the general formula: <FORM:0962461/C1/6> until one molecular proportion of carbon dioxide is split off, or (4) (when R3 and R4 are alkyl radicals) alkylating the corresponding primary or secondary amines (R3 and/or R4=H, obtained by replacing compound V in process (2) by ammonia or a monoalkylamine).  The products, which form salts with inorganic or organic acids, have spasmolytic, antiallergic, sedative, anticonvulsive and antiemetic activity. Chlorides of basic alcohols III are prepared as follows: (a) (when R1=H, R2=CH3) by reacting 1, 3-butylene glycol with acetyl chloride to form 3-chloro-n-butyl acetate, reacting this with an amine V, and chlorinating the resulting 3-tertiary amino-n-butanol; (b) (when R1=CH3, R2=H) adding hydrogen bromide to b -methallyl chloride in the presence of dibenzoyl peroxide and reacting the resulting g -bromo-b -methyl-propyl chloride with an amine V.  Reference has been directed by the Comptroller to Specification 914,717.
Patent GB-665806-A (GB)
Title: Improvements in the preparation of crystals by evaporation
IPC: C30B7/02
Filed: 1949-11-21
Abstract: <PICT:0665806/III/1> A single crystal is grown from a seed 4 by evaporating the mother solution in a closed container 3 by means of a dehydrator consisting of an aqueous saturated solution 7 of a substance in the presence of excess 8 of the substance, the vapour pressure of the dehydrating solution 7 being lower than that of the mother solution.  The solution 7 may be agitated by hand or automatically by a member 9, a liquid seal 10 being provided where the member 9 passes through the container 3.  A drop 12 e.g. of paraffin oil may be placed on the surface of the mother solution around the suspension thread 5 to prevent tray crystals forming on the thread from falling on to the growing seed.
Patent GB-340535-A (GB)
Title: Sheet metal planks
IPC: E02D17/08
Filed: 1929-10-01
Abstract: 340,535. Shoring excavations. RAUWALD, F., 1, Semperstrasse, Essen, Germany. Oct. 1, 1929, No. 29724. Convention date, March 19. [Class 20 (ii).] Sheet-metal planks for use in supporting the sides of excavations are formed by bending over the flanges at obtuse angles to the web, one or both of the flanges being again bent to form an interlocking joint with the adjacent plank. The planks may be provided with projections 3 to position the stiffening members C used in supporting the planks. The projections may be hemispherical or square or rectangular and the plank may be provided with a central corrugation to further stiffen it.
Patent GB-1589283-A (GB)
Title: Apparatus for detecting abnormal condition of wire rope
IPC: B66D1/54
Filed: 1977-07-15
Abstract: An apparatus for detecting an abnormal condition of a wire rope comprises a detecting element, a part of which is disposed adjacent to an outer surface of the wire rope for longitudinally moving and the other part of which is held on a supporter and which detects the abnormal condition of the wire rope.
Patent GB-288992-A (GB)
IPC: B01D45/08
Filed: 1927-11-08
Abstract: 288,992. General Air Filters Corporation, (Assignees of Dauphinee, G. S.). April 18, 1927, [Convention date]. Dust-collectors. - Dust is separated from air &c. in apparatus employing plates coated with oil &c., the plates being formed throughout with slits 2. Fig. 3, and alternate grooves and ridges 5, 6, Figs. 3 and 5. The intermediate product in the manufacture of expanded metal may be employed. The plates may be bent or zig-zag and the air flows along the channels left between adjacent parallel plates, a part of the air flowing through the slots. Fig. 1 shows a filtering unit formed of baffle plates B disposed between flashings C, D, the front flashing C being removable and the rear one forming a support for the plates. Oil is supplied from a distributor A, and collects in a reservoir R from which it is returned after removal of mud by a conveyer H. When used in a ventilator system closed down at night, the stoppage of the ventilator fan may start the oil pump, from which the conveyer is driven through reduction gear. The baffle plates are spaced by flanged slotted plates 19, Fig. 12, and may be enclosed in casings covered with expanded metal; the flanges 21 prevent oil from being carried away by the current.
Patent GB-1434075-A (GB)
Title: Display device
IPC: G09G3/14
Filed: 1973-06-25
Abstract: 1434075 Alpha numeric displays C M SINCLAIR 25 June 1973 30053/73 Heading G5C An alpha-numeric display device comprises selectively energisable electroluminescent elements, a light transmissive or reflective screen S and optical means for forming a magnified image of the energized elements on the screen. A device comprises 8 figure-of-eight arrays D1 ... DB of LEDs on a printed circuit board and lenses L1 ... L8 formed in a single sheet of plastics material; alternatively a single lens can be used. The screen may be perpendicular to the light beams which are turned through 90 degrees by a prism. Spurious images are removed by opaque strips between each array and the corresponding lens. The screen may be covered with a filter to cut out ambient light and improve contrast.