baber/WOPTO huggingface dataset:
Patent GB-963208-A (GB)
Title: Improvements relating to gas pressure controlled relief valve devices
Inventor: AINSWORTH ALAN
IPC: F16K17/192
Filed: 1961-09-18
Abstract: 963,208. Valves; hydraulic seal safety devices. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 4, 1962 [Sept. 18, 1961], No. 33418/61. Heading F2V. A liquid-seal pressure-relief valve has a body 10, Fig. 1, with a window and a lower chamber 14 in which is supported an opentopped receptacle 15 with a number of holes 15a in its base; a tube 19 which depends into the receptacle 15a, is formed with an inner divergent end that embodies at least one notch 21, shown as being of inverted V-shape. The tube 19 incorporates a deflector 20 and at the junction of the chamber 14 and body 10 is a gulley 16 with a connection 18 to the bottom of the chamber 14, which connection may include an adjustable needle valve. The chamber 14 and receptacle 15 contain a heavy liquid, e.g. mercury or a high specific-gravity oil, up to a level sufficient to cover the notch 21. The tube 19 is connected to pressure source, which may be sub-atmospheric, such as a glove box containing radio active or toxic materials, whilst the body 10 is connected to a lower pressure, e.g. an air extraction system by a pipe 12. The holes 15a may be replaced by an upstanding tube. Slight variations in glove box pressure are catered for by venting direct to the extractor system. A small increase in pressure will depress the liquid surface and partially uncover the notch 21 enabling the pressure fluid to bubble through the liquid to the pipe 12. A sudden pressure increase will throw the liquid in the receptacle 15 on to the deflector 20 and thence into the gulley 16 whereby the end of the tube 19 is wholly uncovered. In another embodiment, the casing 10, Fig. 3, has a downward extension 10a housing a low-pressure relief valve comprising an annular lip 24 depending into a well 25 between ribs 26, 27 with storage spaces on each side thereof that lead to the well 25 via holes 28. The wells are filled with the heavy liquid whilst a pipe 29 conducts glove box pressure to the inner side of lip 24, the outer side being exposed to ambient pressure through perforations 30 in the extension 10a, which pressure is admitted to the interior of the body if the glove box pressure falls below a given value. The tube 19 does penetrate the body 10 and the connection 18 is omitted. Where the relieving action is dependent entirely upon the restriction between the receptacle and chamber, the latter is extended upwards to form the body; the deflector and connection 18 may be omitted.
Patent GB-850829-A (GB)
Title: Improvements in or relating to lamp fittings
IPC: F21V1/00
Filed: 1957-10-28
Abstract: 850,829. Lampshades. HALA NEDERLANDSCHE LAMPENFABRIEK N.V. Oct. 28, 1957 [May 24, 1957], No. 33625/57. Classes 75(2) and 75(4). A lampshade comprises two hollow opaque members 1, 2 disposed coaxially one within the other with their peripheral walls spaced apart to define an annular space and apertured for escape of light therethrough from a lamp bulb disposed axially within the inner member 2, the apertures 6, 7 in the respective members 1, 2 being relatively offset so that no light can issue directly through the apertures 6 of the outer member 1 from the light source. As shown the members 1, 2 are frusto-conical and open at their wider ends, the inner member 2 having a radial flange 10 at its wide end to seal light tightly within the member 1 and close the annular space between the members 1, 2. The apertures 6, 7 are slots extending longitudinally in the cylindrical walls and the members are secured together at their narrow ends by a screw 4. The narrow ends of the members 1, 2 are provided with ventilation openings 9, 8 respectively.
Patent GB-728356-A (GB)
Title: An improved method and apparatus for repairing road surfaces
IPC: E01C23/085
Filed: 1950-01-03
Abstract: 728,356. Road-planing machines. JOHNSTON BROS. (CONTRACTORS), Ltd., and FORSDYKE, P. J. Jan. 3, 1951 [Jan. 3, 1950], No. 33692/53. Divided out of 712,477. Class 107. The apparatus of Specification 712,477 is supplemented by a means adapted to break up the loosened material. Such means may comprise a rotary fork or paddle 42 mounted on a structure 43 and driven by a chain and sprocket from the output shaft of the gear-box 30. The use of heat is optional. Specifications 422,842 and 426,000 also are referred to.
Patent GB-488923-A (GB)
Title: Improvements in the treatment of raw bast fibres
IPC: D01C1/02
Filed: 1936-12-10
Abstract: Raw bast fibres, for example in the form of a card sliver which may be wound on a perforated beam or formed into laps, are pretreated with an acid, then treated with elementary chlorine or an acid chlorine lye, and finally subjected to an alkaline boil, the treatments with the chlorine lye and the alkali, at least, being conducted whilst the treatment liquid is caused to flow through the material in a radial direction.  The process is preferably conducted in an apparatus comprising a closed vessel for containing the fibrous material and having an inner perforated wall within which is disposed a hollow perforated member, the outer wall and the inner hollow perforated member being connected to means which circulate liquor radially through the material from one to the other.
Patent GB-191934-A (GB)
Title: Improvements in and in the manufacture of grid resistances
IPC: H01C3/10
Filed: 1921-12-16
Abstract: 191,934. Satchwell, L. Dec. 16, 1921. Addition to 155,689. Resistance grids.-The grid resistance described in the parent Specification is modified by slotting the continuous strip of resistance material transversely to provide a zig-zag current path, making the strip of stiff material several times wider than the insulating separators, and providing thicker separators. As shown in Fig. 2, the transverse slots 4, 5 are stamped in groups, representing component grids, with longitudinal slots 7 and transverse cuts 8 arranged so that when the strip is bent into zig-zag form, as shown in Fig. 1, a connecting-piece 11 is formed between adjacent grids. The grid separators consist of a strip of crimped metal 12, doubled upon itself, and arranged edgewise between two flat strips 13 of mica provided with holes to receive the assembly bolts 10 which pass through the holes 6 of the grid and are secured to T-section clamping- plates 9 at their ends.
Patent GB-1151107-A (GB)
Title: Brake Shoe Mounting.
Inventor: STAINKEN HENRY AUGUST
IPC: F16D51/10
Filed: 1966-07-28
Abstract: 1,151,107. Internal shoe-drum brakes. OTIS ELEVATOR CO. 28 July, 1966, No. 33978/66. Heading F2E. An internal shoe-drum brake is provided with a brake arm 16 pivoted at 34 to the fixed brake frame 33, 32, 31 and an arcuate brake shoe 11 is pivoted on a spherical bearing 15 to the brake arm 16 such that the brake shoe and the brake arm are adapted to be withdrawn from the brake drum 15 by means of an electromagnet 49 and linkage connection 44, 41, the brake shoe being applied directly to the brake drum by means of a compression spring 51. The brake arm 16 is of bifurcated construction having two legs 17, 18 and a tongue portion 22 extending between the legs 17 and 18 such that a screwed adjustment 63, 64 provided on the brake shoe 11  is adapted to abut the tongue portion 22 of the arm 16 to provide a unidirectional connection between the shoe and the brake arm. A turnbuckle adjustment device is provided at the upper end link connection between the brake arm and the link 44.
Patent GB-840019-A (GB)
Title: Improvements relating to hydro-pneumatic shock absorbers
IPC: F16F9/092
Filed: 1958-10-23
Abstract: 840,019. Hydro-pneumatic spring units. DAIMLER-BENZ A.G. Oct. 23, 1958 [Nov. 7, 1957], No. 33998/58. Class 108(3). In a hydro-pneumatic shock absorber, a working cylinder 1 containing a piston 2 is surrounded by a concentric housing 3. A diaphragm 6 within the housing divides the housing into chambers 4 and 5. The chamber 4 contains air under pressure. The chamber 5 which is connected through a shock absorber valve 12 with the working cylinder 1, contains oil. A regulating piston 20 permits the length of the shock absorber to be adjusted.
Patent GB-1457106-A (GB)
Title: Box beam
IPC: B29C70/00
Filed: 1973-07-17
Abstract: 1457106 Laminates; moulding cored beam R P STRUCTURES Ltd 12 July 1974 [17 July 1973] 34106/73 Headings B5N and B5A [Also in Division E1] A method of fabricating a box beam having a core of substantially rectangular cross-section includes covering each of two faces of the core opposite one another with respective layers of reinforced resin material, and moulding on to the core, two caps of reinforced resin material, each cap being moulded around one of two other faces opposite one another and overlying the two edge portions of the said layers of reinforced resin material which lie adjacent to the said other faces, so as to form a laminate of reinforced resin material at each said edge portion. The resin is preferably reinforced with fibrous material e.g. glass fibres in the form of woven cloth, chopped strand mat, rovings, surfacing tissue or woven rovings. Other reinforcing material e.g. carbon fibres or steel wires may be alternatively or additionally incorporated in the resin material applied to one or more of the faces of the core. The resin may be a styreneated unsaturated polyester. The core material may be timber or a polyurethane foam. The covered core may be made by applying one or more layers of reinforced resin to the first two opposed faces of a slab of core material and allowing the resin to harden, the hardening optionally being followed by cutting the faced slab into sections each having one or more layers of resin material on each of the two opposed faces. In the embodiment described the caps are applied with a cup press using either'of the two form of moulds described in Specification 1,414,859.
Patent GB-365696-A (GB)
Title: Improvements in or relating to coin freed photographic apparatus
IPC: G03B17/53
Filed: 1930-11-12
Abstract: 365,696. Automatic photographic apparatus. PHOTOGRAPHIC WEIGHING MACHINES, Ltd., South West Entrance, Exhibition Grounds, Wembley, Middlesex, and BURLEIGH, D. S., Brownswood Works, G.N. Railway Yard, Hornsey Road, Holloway, London. Nov. 12, 1930, Nos. 34116/30 and 12399/31. [Class 98 (i).] Coin-freed automatic photographic apparatus comprises a receiver for the negative or other photograph, a camera provided with focusing mechanism adjustable by an external handle for different degrees of enlargement, means for feeding sensitive sheets to the camera and for holding them during exposure, and developing and finishing apparatus. As shown in Fig. 1, the holder 5 comprises a fixed plate 7, and a presser plate 8 slidable on pins 9 and urged by springs 12 away from the plate 7 into engagement with arms 13, on a shaft 14, one of which arms carries a roller 15 co-operating with a cam 16 on a shaft 17. Rotation of a box 18 delivers sensitive sheets successively to the holder 5, where they are positioned by pins 21 carried by a lever 22 co-operating with a cam 24, on rotation of which the exposed sheet falls into the developing tank 25, whence it passes through a drying channel into a delivery receptacle. The shaft 17 is driven by a clutch, Fig. 5, comprising a continuously-driven ratchet 26 and a pawl 28 carried by a disc 29 fixed to the shaft 17 and normally held out of engagement with the ratchet by a movable abutment 30 engaging a tappet 30a pivoted on the disc 29 and controlled by a spring 34 tending to rock the element 30a to engage the pawl 28 with the ratchet 26. The abutment 30 is carried on a shaft 31 fitted with a lever 32 which projects into the coin shoot 33 and is rocked by a coin to displace the abutment 30 and permit the pawl 28 to engage the ratchet 26. After the shaft 17 has made one revolution the abutment 30 rocks the tappet 30a to disengage the pawl 28 from the ratchet 26. A slide controlled by cam and tappet or electromagnetic mechanism operated by the shaft 17 covers the coin slot during operation. The shaft 17, Fig. 1, is geared to a shaft 35 driving the container 18 so that a sheet is delivered to the holder soon after the shaft 17 begins to rotate. Cams 36, 37 on the shaft 17 operate mercury switches 38, 39 respectively controlling a signal lamp 42 and lamps on both sides of the negative holder for the illumination of both transparent and opaque negatives. The negatives may be illuminated by daylight. Automatic focusing is effected by coupling the slidable support 50 for the holders for different sizes of negative to the lens 3. In a modification there are one, or two or more coplanar holders on a support which is moved simultaneously with the lens into focusing position by a cam and tappet, or a screw and nut device. With two or more holders the support,may be moved transversely and drive the actuating shaft to effect the focusing adjustment.
Patent GB-977124-A (GB)
Title: Method and apparatus for electrically treating emulsions
IPC: H01B7/02
Filed: 1962-09-06
Abstract: 977,124. Electrically treating emulsions. HOWE-BAKER ENGINEERS Inc. Sept. 6, 1962 [June 13, 1962], No. 34162/62. Heading C7B. [Also in Division B2] A discontinuous aqueous phase in oil is coalesced by passing the oil through a series of vertically disposed alternate planar and non- planar electrodes and applying a unidirectional potential (e.g. a pulsating potential) to the electrodes. The planar electrodes may be plates or mesh and the non-planar electrodes may be rods or tubes which may terminate above or below the bottoms of the planar electrodes so that the lower few inches of the electric field is highly non-uniform. Fig. 1 shows an electric treater with electrodes comprising alternate plates 8 and rows of rods 7, an oil emulsion inlet 4, an outlet 9 for treated oil and an outlet 61 for removal of coalesced water. The plate electrodes 8 are supported from the side of the container by angle bars 31, 32, 35, 36, Fig. 2, and the rod electrodes 7 are supported by channel members 10-14. Electrical connection is through conductors passing through insulating bushings 29, 27, Fig. 3 (not shown). The unidirectional potential may be supplied from a three phase system with a ripple factor of 4% or from a single phase system with a ripple factor of 52% or by superimposing A.C. on D.C. Potentials of 3500-15,000 volts per inch of the electrode spacing and current not exceeding 85 m.A. are referred to. U.S.A. Specifications 987,115 (reissue), 1,931,725 and 2,855,356 are referred to.
Patent GB-835096-A (GB)
Title: Improvements in or relating to nails or the like
Inventor: LEIGH ANTHONY DANIEL ADAMSON
IPC: B43M15/00
Filed: 1957-11-02
Abstract: 835,096. Furniture tips. WALL & LEIGH (THERMOPLASTICS.) Ltd. Nov. 3, 1958 [Nov. 2, 1957], No. 34266/57. Class 134 [Also in Group XXV] A scratch - preventing foot or tip for furniture comprises a metal shank 10 and a head 11 and a separate head cover 12, of rubber or a resilient synthetic resin, the cover having a recess 15 with a restricted entrance 16. The cover is snapped over the head and retained thereon by the restriction.
Patent GB-1007229-A (GB)
Title: Improvements in hose
Inventor: JACKSON ALBERT EDMUND
IPC: B29D23/00
Filed: 1963-08-30
Abstract: 1,007,229. Helically wound pipes. GEORGE ANGUS & CO. Ltd. Aug. 11, 1964 [Aug. 30 1963], No. 34429/63. Heading F2P.  A hose comprises an impermeable tube 19 of rubber or the like reinforced externally by plies 20 of a textile fabric which are spread or fabricated with rubber-like material for mutual adherence, have a warp strength per inch to weft strength per inch in the range of 20 : 1 to 2 : 1, are cut parallel to the edges of the woven fabric, are all wound helically with the edges of each ply touching or spaced slighly apart at substantially the same axial pitch, some clockwise, others anti-clockwise, the edges of the success are layers being displaced axially in relation to each other so that the weft yarns support each other, and the middle of the reinforcement being wound at a predetermined optimum angle. The reinforcement may be provided with an outside cover of rubber or the like. The layers of reinforcement are wound so that the edges of the plies lying in the same direction have their contacting edges equally spaced along the axis of the hose. The optimum angle is generally between 52 degrees or 62 degrees to the axis, the middle ply or plies being wound at about the means angle in this range. The main layer may be of tyrecord fabric with the required warp/weft strength ratio of up to 20 : 1 and the other reinforcing layers of woven duck having a warp/ weft strength ratio of 6 : 1 to 4 : 1. In an apparatus to reinforce the hose all the stripwrapping heads are geared together to rotate at the same speed and the correct starting relationship for successive layers of strip is also maintained by gearing.
Patent GB-818360-A (GB)
Title: Production of hydroxy polythioethers
IPC: C08G75/02
Filed: 1955-12-01
Abstract: Hydroxy terminated polythioethers (obtained by condensing a polyhydric alcohol with a thioether glycol) are further condensed and at the same time freed from malodorous impurities, e.g. 1,4-thioxane or 1,4-dithiane, by causing them to run in a thin layer over a stationary or moving surface at 100-300 DEG  C.  A hydroxy-polythioether from a condensation vessel 1 passes via a pump 2 into a falling film evaporator 3 equipped with a rotor 4 for distributing the reaction mixture over the walls of the evaporator. Vacuum is applied at 5 and water and/or an inert organic liquid may be added to the polythioether via pump 6 to facilitate the removal of malodorous substances by entrainment. The polythioether, which may be recirculated through the apparatus a number of times by means of a pump 7, is discharged through pipe 8.  In Example 4, water and diethyl <FORM:0818360/III/1> benzene are introduced via pump 6 whereby a ternary mixture of water, diethyl benzene and malodorous impurities distils off. Specification 818,359, [Group IV (a)], is referred to.ALSO:<PICT:0818360/IV (a)/1> Odourless hydroxy terminated polythioethers having a molecular weight of 800-10,000 are made by heating at 100-300 DEG  C., in the presence of a dehydration catalyst, 1 mol. of a polyhydric alcohol containing no sulphur atoms with 1-1.5 mols. of a thioether glycol until the hydroxyl value of the reaction mixture is about 10-100 units higher than the hydroxyl value of the desired polythioether, and then effecting further reaction and at the same time removing malodourous impurities (e.g. 1.4-thioxane and 1.4-dithiane) by causing the reaction mixture to run in a thin layer over a stationary or moving surface at 100-300 DEG C. until the desired hydroxyl value is reached.  The polyhydric alcohol containing no sulphur atoms may be ethylene-, 1.3-butylene, 1.4-butylene, 1.5-amylene- or 1.6-hexylene-glycol; glycerol, hexanetriol, pentaerythritol or mannitol; or p-xylene glycol, dihydroxyethyl hydroquinone, dihydroxyethyl-1.5-dihydroxy-naphthalene or the 4.4-di-(beta-hydroxyethyl)-ether of 4.41 - dihydroxydiphenyldimethyl methane.  Reaction is effected in condensation vessel 1 and the hydroxypolythioether having a hydroxy value 10-100 units above the desired final value passes via a pump 2 into a falling film evaporator 3 equipped with a rotor 4 for distributing the reacting mixture over the walls of the evaporator. Vacuum is applied at 5 and water and/or inert organic liquid may be added to the polythioether via pump 6 to facilitate the removal of malodourous substances by entrainment. The polythioether, which may be recirculated through the apparatus a number of times, is discharged through pipe 8. Examples disclosed hydroxypolythioethers derived by reacting thiodiglycol with 1.4-butylene glycol, ethylene glycol, hexanediol and trimethylol propane, or 1.4-butylene glycol and 1.6-hexanediol in presence of p-toluene sulphonic acid methyl ester.  Specification 818,359 is referred to.
Patent GB-603208-A (GB)
Title: A device for picking up sound from gramophone records
IPC: H04R17/04
Filed: 1945-12-20
Abstract: 603,208. Gramophone pick-ups. RUUD, O. S. Dec. 20, 1945, No. 34620. [Class 40 (iv)] [Also in Group XXXVIII] A mouth-piece or guide 10 for a wire 11 replacing the usual needle is supported in rubber sleeves 13 against a piezo-electric crystal 12. The sleeves are secured to a metal box 9 in the arm 8 and the cable 15 is led from the crystal to an amplifier through apertures in the mounting for the arm. The wire 11 is automatically rotated as the arm traverses the record and can be fed in steps by operation of a lever 20 (see Group XXXVIII).
Patent GB-1045840-A (GB)
Title: Improvements in or relating to loom shedding apparatus
IPC: D03C1/14
Filed: 1964-08-24
Abstract: The heald frames of a loom move in a guide 30 Fig. 2 (not shown) in a direction perpendicular to the warp and weft directions which guide is moved by a cam 22 in the direction of the warp threads, the resultant motion of the heddles being an arc about the fell of the fabric.  A pin 36 may be inserted to hold the heald frames in their forward position so that they are not acted on by the cam 22.
Patent GB-1359433-A (GB)
Title: Gelling silicates
IPC: E02D3/12
Filed: 1972-07-26
Abstract: 1359433 Silica gel RHONE-PROGIL 26 July 1972 [1 Sept 1971] 34994/72 Addition to 1159400 Heading C1A [Also in Divisions E1 and C2] A liquid or gelled composition comprises an aqueous alkali metal silicate solution, and as gelling agent a dialkyl succinate and at least one dialkyl glutarate or adipate, wherein each alkyl radical contains 1-5 carbon atoms. The diesters may be obtained by esterifying the mixture of succinic, glutaric and adipic acids, obtained as mother liquor from the crystallization of adipic acid manufactured by oxidizing cyclohexanone. Other additional gelling agents, e.g. acetates or acetins may also be used. The agents are preferably present in an amount of 5-50% by wt. of silicate. An emulsifying agent, e.g. an ethylene oxide/ alkylphenol condensate, may be present. The silicate may have a SiO 2 /alk. metal oxide molar ratio of 2-5 : 1.
Patent GB-1271457-A (GB)
Title: Oxidative dehydrogenation
IPC: C07C5/48
Filed: 1969-07-11
Abstract: 1,271,457. Dehydrogenation process. PETROTEX CHEMICAL CORP. 11 July, 1969 [20 Aug., 1968], No. 35087/69. Heading C2C. [Also in Division C5] Organic compounds are dehydrogenated by reacting a gaseous mixture of the starting material and Cl 2 , Br 2  or a chlorine- or brominecontaining compound in amount not more than 2000 p.p.m. by weight halogen element, with oxygen or other oxidant in the presence of a catalyst comprising a crystalline structure containing iron, oxygen and at least one other metallic element. Reactions specifically mentioned are: propionitrile to acrylonitrile, propionaldehyde to acrolein, ethyl chloride to vinyl chloride, methyl isobutyrate to methylmethacrylate, 2-chlorobutene-1 or 2,3-dichlorobutane to chloroprene, ethyl pyridine to vinyl pyridine, and ethyl acetate to vinylacetate.
Patent GB-428482-A (GB)
Title: Improvements in, or relating to, electric fuses
IPC: H01H85/24
Filed: 1933-12-15
Abstract: 428,482. Fusible cut-outs; two-part couplings. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield.-(Assignees of Russenberger, V.; 2, Boulevard Furcy- Vernois, Lagny, Seine, France) Dec. 15, 1933, No. 35306. Convention date, Dec. 15, 1932. [Class 38 (i)] In order to allow a fuse to be inserted only in the corresponding base, the contacts are made flat in cross-section and are mounted so as to be capable of being arranged at different angles. The fixed contacts a', a<2> of the spring clip type have a square form at the bottom which fits into a star-shaped recess a<3> so as to be positively held in any of four positions. The corresponding blade contacts b<1>, b<2> are secured in slots b<4> in similar positions. Other forms of mounting slots giving various positions may be used. The Specification as open to inspection under Sect. 91 comprises also the application of the invention to electric couplings in general. This subject-matter does not appear in the Specification as accepted.