baber/WOPTO huggingface dataset:
Patent GB-1391882-A (GB)
Title: Distryryl compounds their manufacture and their use
IPC: D06L4/60
Filed: 1973-06-29
Abstract: 1391882 Distyryldibenzofurans CIBAGEIGY AG 29 June 1973 [30 June 1972] 30988/73 Headings C2C and C2P [Also in Divisions C3 and C5] Novel compounds of formula wherein Rx and R x <SP>l</SP>, which may be the same or different, each denotes an optionally functionally modified sulphonic acid group, a sulphone group, an optionally functionally modified carboxylic acid group or a cyano group, R x <SP>1</SP> also denotes an alkyl or alkoxy group or a chlorine or hydrogen atom, and Ry and R y <SP>1</SP>, which may be the same or different, each denotes a sulphonic acid group or a salt thereof, a hydrogen or chlorine atom or an alkyl or alkoxy group, are prepared by reacting aldehydes with phosphorus-containing reagents to form the linkages, followed by modification of R groups if required. The products are optical brightening agents and photographic scintillators. 2,7-Dimethyldibenzofuran is reacted with N-bromosuccinimide to give 2,7-bis(bromo- "methyl)dibenzofuran which is reacted with triethyl phosphite to give 2,7-bis(diethoxyphosphonomethyl)dibenzofuran.
Patent GB-1018363-A (GB)
Title: Yarn slub catcher
IPC: B65H63/06
Filed: 1964-08-04
Abstract: A slub catcher has a yarn passage formed between two opposed members, with one of the members being resilient transversely of its face to permit deformation thereof by yarn enlargements.  The resilient member comprises a base plate, with a rubber covering layer and optionally a thin metal plate or a series of contiguous metal fingers on the yarn engaging face.  The yarn passage is formed by a groove in the non-resilient member and the two members are pressed together by weights or by a spring pressed plunger. It is stated that the slub catcher allows the passage of a hard knot but not that of a long slub.
Patent GB-361531-A (GB)
Title: Improvements in cooking ovens
IPC: F24C15/16
Filed: 1930-10-17
Abstract: 361,531. Door-operated valves. FIELD, A. E., 128, London Road, Portsmouth. Oct. 17, 1930, No. 31146. [Class 135.] A cock 23 in the pipe supplying the burners of a gas oven is operated by the movement of the oven door through a lost-motion device comprising a slotted sector 21 into which extends a pin 20 on a pivoted arm 19 moved by a link 18 connected to an extension 17 of the door hinge, so that the flame is not lowered until the door is partly open and not raised again until it is nearly shut.
Patent GB-775696-A (GB)
Title: Apparatus for the production of dipped sweets
Inventor: HOLMES WALTER GODFREY
IPC: A23G3/24
Filed: 1954-10-28
Abstract: 775,696. Coating confectioners' goods. PASCALL, Ltd., J. Dec. 16, 1955 [Oct. 28, 1954], No. 31152/54. Class 28(1) Apparatus for coating sweet centres comprises a base 20 with recesses 26 in which the centres are placed and a plate 13 with a plurality of pins 14 arranged in positions corresponding to those of the recesses in the base, the plate 13 being slidably mounted on a framework with a detachable ejector plate 16 slidably mounted on the pins beneath the plate 13. The framework comprises top and bottom plates 10, 11 connected by posts 12 with flanged upper ends 8 fitted with cushioning pads 9 bearing on plate 10. Pads 9 and rubber or like pads 7 on top of plate 10 are secured in position by screws which engage tapped apertures in flanges 8. The plate 13 slides on posts 12 between plates 10 and 11 and is provided with rows of tapped apertures into which are screwed the upper ends of pins 14 which are held by nuts 15. Ejector plate 16 is detachably secured to plate 13 by clips 17, 17<SP>1</SP>. Recesses 26 are lined with cushioning pads and base 20 has ends 22, 23 with recesses 24, 24<SP>1</SP> and shoulders 25. When the framework is placed on the base, extensions 13, 13<SP>2</SP> of pin plate 13 are pressed down, sliding in recesses 24, 24<SP>1</SP>, so that pins 14 penetrate the centres in recesses 26. Shoulders 25 prevent extensions 13, 13<SP>1</SP> from being moved down too far. The centres carried on the framework are then dipped into the coating material and the framework inverted to rest on pads 7. Plate 16 is released from clips 17, 17<SP>1</SP> and is removed with the coated centres. The device may be re-used by attaching another plate 16.
Patent GB-994449-A (GB)
Title: Bottle cap toys
IPC: A63H33/00
Filed: 1962-08-14
Abstract: 994,449. Toys. CAPSIE Inc. Aug. 14, 1962 [Aug. 15, 1961], No. 31170/62. Heading A6S. A toy comprises a bottle crown cap and a locking disc fitting snugly within said cap to form the base of the toy which may comprise such things as a chessman, Figs. 1 and 2, a clown. Fig. 4, a basket, Fig. 5, a boat, Fig. 9, a wire figure, Fig. 12, and a tubular stem for receiving several different items, as shown in Fig. 19. The caps and locking discs could also be used as wheels of vehicles, Fig. 18.
Patent GB-730902-A (GB)
Title: Improvements in or relating to the production of filaments, films and similar articles of polymers or copolymers having a basis of acrylonitrile
IPC: D01F6/18
Filed: 1952-12-09
Abstract: Filaments, threads, artificial horse hair, tows, films, foils, and similar articles of polymers or copolymers of acrylonitrile are obtained by dry spinning solutions of these polymers in solvents or solvent mixtures having highboiling points, the temperature of extrusion being at least 120 DEG  C., the walls of the evaporative chamber being maintained at a temperature of less than 100 DEG  C., and the concentration of the solution to be spun, expressed in parts by weight of polymer or copolymer per hundred parts by weight of solution, being greater than the empirical value <FORM:0730902/IV (a)/1> where N is the specific viscosity of the polymer, i.e. the ratio of the difference between the viscosity of a solution of the polymer in the solvent selected for the spinning solution, determined at a concentration of 0.2 per cent and at a temperature of 20 DEG C., and the viscosity of the solvent at 20 DEG  C., to the viscosity of the solvent at 20 DEG  C.  Under these conditions, filaments are obtained which have an indented contour in transverse section and a cellular or porous structure.  A current of air may be passed through the spinning chamber.  In an example, a solution comprising 34.5 per cent of an acrylonitrile polymer of specific viscosity 0.29 and 65.5 per cent of dimethylformamide is extruded at 128 DEG  C. into an evaporative chamber of which the walls are at 75 DEG  C. and which is swept through by an air current at the same temperature produced by aspiration applied at the base of the chamber.  The filaments obtained are stretched.  These filaments are of indented contour with numerous alveoles in the interior and they have a density of 1.125. Specification 605,612 is referred to.
Patent GB-225712-A (GB)
Title: An improved device for preventing the freezing of water pipes and the like
IPC: F16L53/30
Filed: 1923-12-12
Abstract: 225,712. Peatfield, W. F. Dec. 12, 1923. Bursting of water-pipes, preventing.-A device for preventing the freezing of water in pipes or the like comprises a clamp composed of two elements 1, 4, one or both of which are capable of rapid thermal conduction and embrace the pipe &c. 3 and one of which is extended to form a support for a lamp or heating unit 7 in such manner that the flame of the lamp &c. is directed upon one or both of the elements 1, 4.
Patent GB-1043699-A (GB)
Title: Oxidation of 19-hydroxy-steroids
IPC: C07J1/00
Filed: 1963-08-08
Abstract: 10-Formyl-steroids are prepared by oxidation of 19-hydroxy-steroids with chromium trioxide in the presence of a solvent and in the absence of oxygen.  The reaction is advantageously performed in a nitrogen atmosphere.  Suitable solvents are organic bases such as pyridine, ketones and halogenated aliphatic hydrocarbons. Examples describe the preparation of D 4-3,17,19 - trioxo - androstene; 19 - oxo - testosterone benzoate; D 4-3,19,20 - trioxo - pregnene; and D 5-3,17 - diacetoxy - 19 - oxo - androstene.
Patent GB-881148-A (GB)
Title: Improvements in the fabrication of fluid control valve bodies
IPC: F16K27/10
Filed: 1958-10-01
Abstract: 881,148. Valves. GROVE VALVE & REGULATOR CO. Oct. 1, 1958 [Oct. 10, 1957], No. 31380/58. Class 135. [Also in Group XXII] The body 10, Fig. 1, of a gate valve is of rectangular configuration and is fabricated from steel angle or channel members and/or plates which are welded together; pipe flanges 12 are welded to the body 10. The front and rear body walls 13 are reinforced by hoop plates 21 welded thereto which plates are spaced from the side body-walls; the lower end of the body 10 which is closed by a plate 24 is provided with support feet 26. A bonnet 27, attached to the top of the body 10, consists of a pipe 28 seated upon and sealed to a base 31 whilst a flange 33 on the pipe 28 is bolted to the base 31; sealing rings are carried by the base 31 for the valve stem 29, the top ring being retained by a sleeve that is held by a plate engaging the end of the pipe 28. Another seal is interposed between the base 31 and body 10, and the latter are interconnected by bolts 46, Fig. 4, the lower ends of which engage a plate 48 similar to the plates 21, Fig. 1, welded to the front and rear body walls and the end parts 47a, Fig. 4, of which are separated from the main part of the plate by slots 49 having a length equal to one quarter the body width, the slots and the opening in plate 48 being cut by an oxyacetylene torch. The gate closure 11, Fig. 1, is a steel plate incorporating a port 53 for registry with passage 54 through flanges 12. Seating rings 55, which are sealed with respect to the closure and flanges, are urged towards the closure 11 by springs.
Patent GB-1004644-A (GB)
Title: Improved control apparatus for a coin operated machine
IPC: G07F17/20
Filed: 1963-08-08
Abstract: 1,004,644. Coin freed apparatus. WHIRLPOOL CORPORATION. Aug. 8, 1963 [Aug. 8, 1962], No. 31393/63. Heading G4V. The number of coins necessary to initiate the operation of apparatus such as a washing machine or a dry cleaner is determined by the manual setting of a wafer switch 40, each coin received by the apparatus causing a wafer switch 50 to be stepped forward one contact until the setting indicated by switch 40 is reached when a relay 31 is operated. Once the machine cycle is under way interrupting contacts 90 operated by a cam 88 cause the stepping mechanism to drive the wafer switch 50 back to a normal position as determined by a wafer switch 60. The energizing circuit for the stepping circuit is released by a thermal relay if a bent coin holds coin contacts 100 closed.
Patent GB-779754-A (GB)
Title: Improvements in or relating to pitot tube devices
Inventor: STEER-WEBSTER VASSAL CHARLES
IPC: G01P5/165
Filed: 1955-11-03
Abstract: 779,754. Pitot-tube apparatus. AVIMO, Ltd. Nov. 3, 1955, No. 31431/55. Class 69 (1). A Pitot tube opens into a tubular chamber which is heated and in which are baffles to protect the Pitot tube from ice particles. In the form shown, the dynamic take-off tube 10 is enclosed by a chamber 2 which is heated electrically as at 20 and has baffles 22 forward of the dynamic take-off tube. The baffles are of segmental form spaced along and perpendicular to the axis of the chamber, have their straight edges normally horizontal and project alternately from the top and bottom of the chamber. The metal baffles are placed in heatconducting relation with the heated metal wall with the one nearer the dynamic take-off tube extending upward and having, in front of it, one or more drainage holes 23. The chamber may be single or double walled. An adaptor 24 with a split collet 26 and tapered nut 25 may be fitted to allow of the device being attached to fixings designed for differently shaped apparatus.
Patent GB-1263095-A (GB)
Title: Decanting apparatus
IPC: B01D17/02
Filed: 1969-06-23
Abstract: 1,263,095. Separating liquids. FARBWERKE HOECHST A.G. 23 June, 1969 [21 June, 1968], No. 31511/69. Heading B1D. The liquid dispersion product of a chemical process is delivered to chamber 1, and its phases separate by settling and are simultaneously cooled or heated to optimum temperature while flowing through spiral passage 2 defined between the convolutions of a spiral, double-walled heat exchanger, through which  medium flows from 10 to 13. The heavier liquid is discharged through opening 18 in the vessel floor, and the lighter liquid flows over vertically adjustable weir 4 to outlet 12, which may be connected to an inverted U- tube (16) to limit the level in chamber 11. The top of the vessel has a gas outlet (14). Passage 2 may be 6 to 30mm. across and is relatively high. Chambers 1, 3 may be lined with thermally insulating material and the vessel may be externally lagged.
Patent GB-253005-A (GB)
Title: Improved decompressor valve
IPC: F01L13/08
Filed: 1925-12-14
Abstract: 253,005. Bacci, R., and Vacca, G. Dec. 14, 1925. Lift valves; rotating and grinding valves on their seats. - A decompressor valve for internal-combustion engines of the kind arranged to open against the pressure in the cylinder and actuated by a screw has the screw actuating member 3 readily detachable from the valve spindle 2<1>, whereby the valve 2 may be ground on its seat by a turn-screw engaging slots 6 in valve member and spindle. In the form shown the member 3 is normally held tight against a shoulder on the spindle by a nut 5 engaging a threaded part of the spindle. The member 3 is provided with a priming cup 4 connected by a passage 7 with the valve passage. In a modification the priming cup is formed on the side of the casing.
Patent GB-425534-A (GB)
Title: Improvements in and relating to body belts
IPC: A41F9/00
Filed: 1934-11-05
Abstract: 425,534. Body belts. JEFFERIES, B., 24, High Street, Bath. Nov. 5, 1934, No. 31714. [Class 141] A body belt for preventing the wearer from getting lumbago, comprises a large number of unwoven threads 1 of natural silk which are woven at opposite ends 2, 3, and at the centre 6 into fabric, the fabric ends 2, 3, being provided with fastening devices to secure the belt in position around the wearer's body.
Patent GB-655962-A (GB)
Title: Improvements in spherical rotary compressors
IPC: F04C21/00
Filed: 1948-12-08
Abstract: 655,962. Rotary compressor. PISA, P. Dec. 8, 1948, No. 31801. Convention date, Feb. 2. [Class 110(ii)] Vanes 4 are driven by a shaft 1 to rotate at right angles thereto and are caused to oscillate relatively to each other on pivotal bearings through the action of rollers 5 controlled by substantially frustro-conical cam surfaces 6. Gas to be compressed enters a suction port 9 and is delivered past a non-return valve 14 to a delivery 11. The bore of the working chamber 7, and the tips of the vanes. are part spherical in shape. A cylindrical pivot 3 is secured to the shaft 1 and comprises 'heads 12, secured to inner parts by screws 22, containing elbow-shaped passages 13 through which gas continues to flow after the heads 12 have commenced to close the ports 9, 10. Grooves 15 allow the escape of trapped gas when the vanes are closest together. Delivery is made to a pressure-equalizing reservoir. The rollers 5 are pressed against the guides 6 by small leaf springs 16, each roller being carried on a pivoting arm 18. Packing pieces and rings are provided around the edges of the vanes. Cooling air is circulated through holes 26 by the motion of the vanes. Lubricating oil, from a tank 27, flows through ducts 28, 29, 30, 33.
Patent GB-695948-A (GB)
Title: Improvements in or relating to centrifugal gas compressors
IPC: F02C7/04
Filed: 1949-12-12
Abstract: 695,948. Centrifugal compressors. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B., MOULT, E. S., and COCKBURN, D. M. Dec. 6, 1950 [Dec. 12, 1949], No. 31838/49. Class 110(i) [Also in Group XXXIII] In a centrifugal compressor having a single inlet eye, the impeller delivers to an axially-extending bladed annular diffuser passage by way of a bladeless annular transfer passage which is bent through, preferably, approximately a right angle, so that its exit faces away from the inlet eye. The air leaving the impeller B<SP>2</SP>, Fig. 1, of a centrifugal compressor flows by way of an annular transfer passage C to an axially extending diffuser comprising cylindrical walls D, D' and rows of short diffuser blades D<SP>3</SP>- D<SP>6</SP> of aerofoil section and progressively increasing pitch. Instead of a number of rows, there may be a single row of diffuser blades, of greater length. Either or both of the walls D, D<SP>1</SP> may depart from the cylindrical form to give the diffuser an increasing cross-sectional area in the direction of flow. The impeller may be of helico-centrifugal form, so as to reduce the angle through which the air has to turn in the transfer passage. Fig. 9 shows a construction in which the impeller has an axially directed portion P<SP>3</SP> extending into the transfer passage C. To reduce turbulence at the inner wall C2, Fig. 10, of the transfer passage C, boundary layer control may be effected by air which flows into or out of a chamber Q through passages Q<SP>1</SP>. The passages Q<SP>1</SP> may be directed downstream or upstream according to whether the flow through them is outward or inward. Fig. 11 shows a modification in which variable-pitch diffuser blades D3, D<SP>4</SP> are rotatably mounted on spindle R, S and connected by gear wheels R<SP>1</SP>, S<SP>1</SP> to a double-sided annular rack T. The rack T carries a short operating rack T<SP>2</SP> which is connected by a gear wheel U to an operating member U<SP>1</SP>. The compressor may form part of a gas turbine plant. If the air has a tangential component of flow on leaving the diffuser, the direction of the axes of the combustion chambers may be given a corresponding tangential component. The diffuser blades may be designed for supersonic flow and the propagation of pressure by shock wave formation. According to the Provisional Specification, the passages Q<SP>1</SP> may be of annular form. The supply of air to the chamber Q may be by a separate impeller or by a bleed from the downstream end of the diffuser. If air is to be withdrawn, a pump or an ejector comprising a venturi tube located. in the air stream may be used. Reference has been directed by the Comptroller to Specification 669,357.
Patent GB-1395678-A (GB)
Title: Nematic liquids
IPC: C07F9/11
Filed: 1973-07-04
Abstract: 1395678 Liquid crystal compositions INTERNATIONAL BUSINESS MACHINES CORP 4 July 1973 [3 Aug 1972] 31854/73 Heading C4X [Also in Division C2] To a nematic liquid crystal material is added an organic dopant which provides ions in which the charge is effectively distributed over several atoms and is shielded from the charge of the counterions by a non-poar shell, whereby the resistivity of the nematic material is reduced, and as described in relation to dynamic scattering materials, the threshold voltage is reduced and the cut-off frequency raised. In some cases the undoped material does not exhibit dynamic scattering. The dopant, preferably forming 0À01 to 5% by weight of the composition, may contain large organic ions, or be a precursor thereof, or may be a compound containing chelated alkali metal ions. In the latter class the chelating agent may be dicyclohexyl-18-crown- 6 ether  such being reacted with any one of a number of alkali metal salts of organic anions, or the dibenzo-18-crown-6 ether analogues. The former class appears to consist of generally unrelated materials, e.g. hexaphenylethane; tetrabutylammonium tetraphenylforide; and quinhydrone. The dopant may also be tributylphosphine oxide lithium bromide or triphenylphosphine oxide lithium bromide.
Patent GB-339729-A (GB)
Title: An improved portable electric lamp
IPC: F21L4/00
Filed: 1929-10-21
Abstract: 339,729. Banks, O. T. Oct. 21, 1929. Hand lamps.-A portable electric lamp comprises a battery container in the form of a metal crate provided with a handle, a lamp having means for attachment to the crate or to any other support, and a cable winding reel mounted externally of the crate. In the form shown in Figs. 1 and 2, the container a is provided with a pivoted handle a<1> to which a tube i for spare bulbs may be permanently or detachably secured as by means of a spring clip j<1>, and with a perforated lug a<2> whereby it may be hung from a nail or like support. The container a also carries brackets b, b<1> forming bearings for the winding reel c of a cable e which supplies current to an electric lamp f having a clear bull's eye front lens f<1>, a ruby side lens f<2>, and a press button switch f<3>. Lugs m, m<1> are stamped from the front of the container a to receive the lamp, and the container is also provided with two oppositely directed lugs n to form a cleat for the cable e and a lug q for the removable attachment of an adjustable bracket o having outwardly directed lugs p to support the lamp whereby the latter may be used as an emergency rear light for a, vehicle. The lamp f may also be fitted with a metal cap k having a ruby or other glass k<1> for photographic purposes.
Patent GB-764984-A (GB)
Title: Process and apparatus for the manufacture of articles by dipping
IPC: B29C41/14
Filed: 1954-11-04
Abstract: 764,984. Moulding by dipping. DOHMEN, W. and WAGNER, B. [trading as DOHMEN & WAGNER GUMMIWARENFABRIK]. Nov. 4, 1954 [Nov. 4, 1953], No. 31969/54. Class 87(2). Apparatus for moulding by dipping in which the dipping moulds are caused to enter and leave the tank at an incline by a conveyer chain has the guide rollers or chain wheels of the conveyer adjustable in such a manner that the inclination of the directions of introduction and/or withdrawal and/or the dipping depth can be varied without any influence on the chain velocity. The dipping formers 20 are suspended from a conveyer 1 which takes them through a washing device 2, one or more acid baths 3, a latex dipping bath 7, a lipping machine 8 for bordering the edge of the dipped article, a drier 9, a vulcanizer 10 and to a machine 11 which releases the finished articles and drops them on a delivery conveyer 12. The formers 20 are suspended from the conveyer chain by beams 23 which rest on the horizontal arms of hooks 24a, Fig. 4, fixed to the chain in a manner known in building cranes. The conveyer guide wheels 13, 14, 15, above the bath 3, Fig. 5, are positioned so that the formers 20 are dipped into the acid and start to emerge immediately after passing the wheel 14. The guide wheels 16, 17, 18, 19 above the latex bath 7 are positioned so that the formers enter the latex obliquely, remain in it for a time dependent on the spacing of the wheels 17, 18 and are gradually withdrawn according to the inclination of the conveyer from the wheel 18 to the wheel 19. All the guide wheels 13-19 are adjustable in position to adapt the directions of introduction and withdrawal of the moulds 20 and the length of horizontal travel to the prevailing conditions required for the process. To avoid the sides of the tanks being struck by the formers they are inclined, the walls 21 having the inclination shown to conform to the withdrawal path of the formers. The level of the latex in the tank 7 is kept constant by replenishment from a reserve tank 6 by a pump 5 driven at 4 from the conveyer 1. The output of the machine may be controlled by the number of beams 23 suspended on each hook.