baber/WOPTO huggingface dataset:
Patent GB-297484-A (GB)
Title: Improvements in the manufacture and production of amines of the hydroaromatic-aliphatic series
Filed: 1927-05-23
Abstract: 297,484. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 23, 1927. Hydroxyamines.-Amines containing hydroaromatic and aliphatic radicles and a hydroxyl group in at least one aliphatic radicle are prepared by condensing hydroaromatic ketones or oxides with aliphatic amino-hydroxy compounds, or by condensing hydroaromatic amines with alkylene oxides or with aliphatic hydroxy compounds containing a halogen, aldehyde or ketone group. Simultaneous or subsequent reduction is necessary when aldehydic and ketonic compounds are employed. Thus, cyclohexylethanolamine together with diethanolcyclohexylamine is obtained by the action on : glycol chlorhydrin of ethylene oxide on cyclohexylamine, or by the action of cyclohexanone on ethanolamine with simultaneous or subsequent reduction with hydrogen in the pressure of nickel, and examples are given of these processes; homologues of the reactants may be also employed, e.g. methylcyclohexanone, propanolamine and butanolamine. Again, tetrahydrobenzene oxide may be condensed with aliphatic amines containing hydrooxyl groups; or hydroxyaldebydes and hydroxyketones, such as aldol or sugars, may be treated with hydroaromatic amines, followed by hydrogenation. The products are useful for destroying insects, germs, fungi, &c., and as preservative agents for proteids and the like. Their acidyl compounds may be used as softening agents or camphor substitutes.
Patent GB-910878-A (GB)
Title: Production of regenerated cellulose materials
IPC: D01F2/06
Filed: 1961-04-17
Abstract: Regenerated cellulose filaments, having a very high tenacity both in the conditioned state and in the wet state, good dimensional stability, a high modulus of elasticity in the wet state, and a swelling value less than 55%, are made by spinning viscose of viscosity at least 150 poises at 15 DEG C., of g  value at least 45 and containing a cellulose of degree of polymerization of at least 400, in a coagulating bath which has an acid content of at most 40 g./l. of sulphuric acid and contains not more than 1% anhydrous zinc sulphate, in the presence of formaldehyde. Preferably the degree of polymerization of the cellulose is above 500, the g  value of the viscose is at least 55, and the coagulating bath contains 8-40 g./l. sulphuric acid, 10-120 g./l. anhydrous sodium sulphate, and is substantially free of zinc sulphate.  The formaldehyde may be included in the viscose, or may be added to the coagulating bath, suitably in a proportion of 1-40 g./l.  The coagulating bath temperature may be from 10 DEG -40 DEG C., preferably 15 DEG -30 DEG C.  Filaments emerging from the coagulating bath may be treated in a second hot acid bath, e.g. stretched by at least 100% and advantageously by at least 200%, in either bath or between the baths. In spinning continuous filaments, the spun filament may be wound on bobbins and allowed to relax in acid conditions.  In making staple fibres the spun filaments, after emergence from the coagulating bath, or from the second bath, is used, may be led through a further hot acid bath and cut to staple fibre.  The filaments can also be cut in the acid state, and the fibres then fixed in order to obtain curled fibres.  Filaments so made have a tenacity of at least 5 g./denier in the conditioned state and 4 g./denier in the wet state, a high wet modulus and a wet-state elongation of less than 3% under a load of 0,5 g./denier.  They have a substantially circular cross-section, swelling values generally less than 50%, and are little modified by treatment with 6% caustic soda.
Patent GB-1386129-A (GB)
Title: Desulphurization process
IPC: B01J23/85
Filed: 1972-03-24
Abstract: 1386129 Hydrodesulphurizing petroleum oils EXXON RESEARCH & ENG CO 24 March 1972 [31 March 1971] 13867/72 Heading C5E The sulphur content of a hydrocarbon feed is reduced by contacting with hydrogen in the presence of a sulphur-resistant hydrogenationdehydrogenation catalyst and hydrogen, light ends and hydrogen sulphide are removed from the partially desulphurized product which is then contacted with a sulphur-resistant hydrogenation-dehydrogenation catalyst in the absence of added hydrogen to further reduce its sulphur content by a reaction in which hydrogen sulphide is formed. The feeds treated can be gas oils, coker and cycle stocks, crude and reduced crude oils, black oils and visbreaker effluents. Suitable catalysts comprise Ni and/or Co together with W and/or Mo on silica-containing alumina and can be in the oxidic or sulphidic form. The first stage is carried out at 550-850‹ F. and 50-5000 p.s.i.g. and the second stage is carried out at 625-850‹ F. and 0-3000 p.s.i.g. under autofining conditions. Hydrogen can be released during the second stage and recovered.
Patent GB-202405-A (GB)
Title: Improvements in drop down small arms
IPC: F41A15/06
Filed: 1922-05-18
Abstract: 202,405. Holland, H. W., and Mansfield, W. May 18, 1922. Breech actions, drop-down barrel.-A drop-down gun of the kind in which the mainsprings are compressed as the gun is opened, is provided with a slide E pressed rearwards by a spring F and, at the rear end, engaging recesses a<1> in the actionbody, so that when the gun is closed the slide E is pushed forwards to compress the spring. The ejector hammer, which is of the roll-over type, is made in two parts H, Fig. 6, and G, Fig. 4, both mounted on the same pivot and so operating that ejection takes place only when the cartridge has been fired. The part H normally engages the top limb of the ejector spring J. When the gun is opened, and the corresponding cartridge has been fired, the projection k, Figs. 9 and 10, on the cocking lever K engages the surface h and turns the part H until it is out of the way of the spring J, which then bears against the surface g<4> of the part G which is being turned by the surface a on the breech-body. When the centre g<5> is passed, the spring acts to cause the ejection, as shown in Fig. 2. If the cartridge has not been fired, the end of the lever K is free and does not rotate the part H which remains in engagement with the ejector spring J and prevents it from operating. The slide E acts on the hammer and compresses the ejector spring J when the gun is closed.
Patent GB-879647-A (GB)
Title: Improvements relating to tunable resonant structures
Inventor: BUCKLEY GEORGE WILLIAM
IPC: H01J23/36
Filed: 1957-05-02
Abstract: 879,647. Tuning cavity resonators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 29, 1958 [May 2, 1957], No. 14063/57. Class 40(8) [Also in Group XL(a)] The combination with a klystron of a microwave resonant structure coupled to the output stage of the klystron comprises a main cavity 1 and an additional cavity 12 coupled thereto through a resonant iris 11, which additional cavity 12 has a flexible wall 13, movement whereof effects the tuning of the main cavity 1. As shown, the main cavity 1 feeds an output waveguide 2, and the flexible wall 13 is a diaphragm which can be moved by a piston 14 provided with a vernier tuning control 15. The outer surface of the diaphragm 13 is readily accessible and may be directly water-cooled.
Patent GB-1096596-A (GB)
Title: Improvements in actuating devices for disc brakes
IPC: F16D65/14
Filed: 1965-04-02
Abstract: 1,096,596. Disc brakes. LAMBERT BRAKE CORPORATION. , April 2, 1965 [April 2, 1964]. No. 14100/65. Headings F2E and F2F. A spot-type disc brake is operated by means of arcuate-shaped fluid distensible integral hollow members 58, 60 situated on each side of a brake disc 12, the members 58 and 60 being expanded by the entry of fluid through inlets 64 and 76 to urge pressure transmitting blocks 102 formed of plastics materials against the backing plates 86 and 90 which bear friction pads 88 and 92 respectively. When the brake pressure is relieved the inherent resiliency of the fluid distensible members 58, 60 will cause the friction pads to be withdrawn from the brake disc 12. Valve units 72 are provided to permit the bleeding of the fluid distensible members to permit air to escape without undue loss of hydraulic fluid.
Patent GB-552999-A (GB)
Title: An improved ventilating and water-draining device for windows
IPC: E06B7/02
Filed: 1941-11-03
Abstract: 552,999. Black out device for window blinds. MAYO, N. HALIBURTON, COUNTESS OF. Nov. 3, 1941, No. 14120. [Class 20 (iii)] A black-out device for use with window blinds consists of means for preventing light from passing the edges of a blind, comprising a channelshaped member 1 adapted to be secured to the inside of a window frame 5 and into the channel of which the vertical and lower edges of a blind 7 pass when the blind is lowered. When the window is opened, or the glass broken, air will pass around the edges of the blind for ventilation purposes. A duct 4 is provided to lead away water either to a receptacle in the room or to the outside.
Patent GB-180205-A (GB)
Title: Improvements relating to trouser and the like stretchers and presses
IPC: A47G25/72
Filed: 1921-05-20
Abstract: 180,205. Humphreys, E. May 20, 1921. Combined presses and stretchers.-In a combined trouser press and stretcher, the inner boards 10, 11 are hinged together and provided with a tapered beading 18, Fig. 6, to increase the stretching effect. Press boards 14, 15 are hinged to the boards 10, 11 by spring hinges 30, Fig. 5, and held thereto by U-shaped spring clamping- members 33 fixed on bars 34 pivoted to the inner boards and engaging plates 36 on the outer boards. In a modification, Fig. 11, the boards are held together by spring locking-strips 42. In a further modification, Fig. 9, the beads 18 are replaced by a rod or roller 22 on the board 11<a>, is hinged by pivot pins 26 arranged on opposite sides of the longitudinal axis of the roller.
Patent GB-769078-A (GB)
Title: Improvements in or relating to internal retaining rings
IPC: F16B21/18
Filed: 1955-05-17
Abstract: 769,078. Circlips. WALDES KOH-I-NOOR, Inc. May 17, 1955 [June 18, 1954], No. 14227/55. Class 89 (2). A circlip, for insertion into an annular groove 22, Fig. 6, comprises an open-ended ring 10 having lugs 11, 12 with tool-engaging apertures 13, 14 and a locking prong 20 extending from one lug 12 across the gap to lie adjacent the end of the other lug and prevent unintentional contraction of the ring. The prong lies radially inwards of the groove-engaging periphery and has a hump 20b, Fig. 7, whereby the end of the prong may be raised to allow a tool inserted in apertures 13, 14 to contact the ring. The lug 11 is elongated to allow the raised end to slide therealong.
Patent GB-1506708-A (GB)
Title: Incinerators
IPC: F23G5/10
Filed: 1975-04-03
Abstract: 1506708 Incinerators T PRICE & SON (STAMPERS) Ltd 3 April 1975 [30 March 1974] 14235/74 Heading F4W An incinerator comprises a body 10 defining a chamber 12 having an inlet 16 closable by a door 32, an electrical heating element 40 below inlet 16 and a rotatably mounted barrier 46 between inlet 16 and element 40, which barrier 46, at least when the door 32 is open, restricts access from the inlet 16 to the element 40 and permits an article to be incinerated to be placed on the barrier, the barrier 46 being mechanically connected to the door 32 so that as the door is closed, the barrier 46 rotates to cause the article to be incinerated to fall therefrom on to the element 40. In the form shown, the barrier 46 is a grid pivotally mounted at 54 and includes an extension 52 received in a slot 37 in a portion of the door 32. The door 32 is linked by an arm 60 to a timer for element 40, so that the element 40 is activated for a predetermined interval when the door is closed. The door 32 is biased by a spring 66 towards its closed position. In a modification, the barrier 46 is a grid providing three or more vanes of openwork construction extending from a central rod defining an axis about which the grid rotates. The grid is connected to the door by a rack, pawl and pinion mechanism such that the grid is rotated as the door is closed, but remains stationary as the door is opened.
Patent GB-145958-A (GB)
Title: Improvements in furnaces for the heat treatment of metal articles
IPC: F27D7/00
Filed: 1919-06-05
Abstract: 145,958. Hardy, A., Hunt, J. H., and Wigglesworth, M. June 5, 1919. Muffle furnaces.-In a gas-fired furnace for the heat treatment of metal articles of the kind comprising a chamber d surrounded by transverse flues c, through adjacent ones of which the heating-gases flow in opposite directions, the flue b leading from the gas-producer has on opposite sides inclined outlet ports b<1> adjacent to ports e<1> delivering air from recuperators having superimposed gas-waste flues c<1> arranged zigzag fashion with intervening spaces e for heating the secondary air. The ports e<1> are curved at their upper parts to direct the streams of air into the gas issuing from the ports b<1>, and the flues c are separately controlled by dampers c<2>. The door and door frame of the muffle are ground and inclined to ensure a good fit.
Patent GB-742580-A (GB)
Title: Improvements in the preparation of protein solutions
Inventor: GREEN EDWARD
IPC: D01F4/00
Filed: 1952-06-06
Abstract: A spinning solution is prepared from a globular protein by a process comprising adding to an ageing solution of the protein, when it has a viscosity between one-third of its peak viscosity and peak viscosity and before any second viscosity increase has set in, a pH reducing substance so as to reduce the pH of the solution to a value not below 10.  An ageing solution may be prepared from the protein by suspending the protein in water and adding alkali in one or more stages until the required pH is obtained, for example, in the case of groundnut protein a pH value between about 12 and 13.  Substances which may be added to an ageing solution to reduce its pH include organic acids, such as acetic, tartaric, citric and lactic acid, inorganic acids, such as hydrochloric, sulphuric, nitric, phosphoric and boric acid, salts such as ammonium chloride, sulphate, acetate, oxalate or citrate, sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium hydrogen sulphate, sodium hydrogen sulphite, sodium hydrogen phthalate and compounds such as methylamine hydrochloride. Usually the pH is reduced by at least half of a pH unit, generally by between 1 and 2 pH units.  In the example, groundnut protein is obtained by extraction at a pH of 7.5 of solvent-extracted groundnut meal with sodium hydroxide solution; the protein is precipitated by acidification with acetic acid, made into an aqueous slurry and treated with sodium hydroxide solution until a pH between 10 and 10.5 is reached.  Additional caustic soda solution is then added until the required pH value is reached. When the viscosity has reached the required value acetic acid is added to lower the pH to a value not below 10.  The resulting solutions give satisfactory filaments when pumped through a spinneret into a coagulating bath.
Patent GB-1364643-A (GB)
Title: Air distribution apparatus
IPC: F24F13/072
Filed: 1971-05-11
Abstract: 1364643 Ventilating buildings CARRIER DRYSYS Ltd 28 April 1972 [11 May 1971] 14305/71 Heading F4V A ventilation system comprises a duct 11 having an elongate outlet opening 16 and apertured plates 25 or spaced channel-shaped members which are releasably held in a position covering the opening 16 to control the airflow therethrough. The plates 25 are supported by wedges 29, catches 30 or by magnetic tapes, and are removable for cleaning or replacement through the opening 16. The duct 11 may be rectangular or circular in cross-section and is located above a false ceiling 14 of a corridor 15.
Patent GB-960315-A (GB)
Title: An electrical contact for fitment to printed circuit boards or panels
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R4/28
Filed: 1962-04-13
Abstract: 960,315. Binding posts; two part couplings. PRESSAC Ltd. Jan. 30, 1963 [April 13, 1962], No. 14341/62. Heading H2E. A contact member for a printed circuit board consists of a channel-shaped metal body with a roof 1 and two side pieces 2 having hooks 3 to fit over the edge of a printed circuit board and also having a pair of resilient tongues 4 directed inwardly of the channel to engage a single pin plug. The channel-shaped member has, at its ends remote from the hooks 3, a lug 5 which passes through an opening in the board and is horizontally bent back against the underside of the board and soldered in position. In a second embodiment, Fig. 5 (not shown), the single lug 5 is replaced by two legs.
Patent GB-185173-A (GB)
Title: Improvements in joints for artificial limbs
IPC: A61F2/64
Filed: 1921-05-24
Abstract: 185,173. Lynde, F. C. May 24, 1921. Limbs, artificial.- Joints for artificial limbs comprise sockets for the two limb portions, one socket a being joined with an extension which is inserted between the forks of a bifurcated extension of the other socket b. A pivot-bolt c connects the extensions, and a spring- pressed manually - released bolt d connected to a knob l and sliding in a housing j in the extension of the socket b engages a registering hole in the other extension to lock the two limb-portions in alignment. Flat stops g' carried bv the bifurcated extension coact with flattened surfaces g on the socket a or with screws m carried thereby to limit the rotation of the joint past the vertical position. The construction is described with especial reference to the lmeejoint of a peg leg.
Patent GB-1413431-A (GB)
Title: Solid-state switching systems
IPC: H01L43/08
Filed: 1973-03-28
Abstract: 1413431 Semi-conductor switching SIEMENS AG 28 March 1973 [30 March 1972] 14411/73 Heading H1K A solid state switching system comprises a body of magnetic s/c material with electrodes thereon, connected to a voltage source; with means for applying a variable strength magnetic field of preselected direction; wherein the body is held at a temperature not exceeding the Curie point of the material and within the zone of critical fluctuation of the spin system; and switching from a high ohmic to a low ohmic state is effected by increasing the magnetic field strength and vice versa by decreasing it; the electrode voltage producing an electric field, of itself ineffective to switch the body but effective to reduce the necessary strength of the magnetic field and/or the necessary strength variation for switching as compared with the strength or variation necessary in the absence of such electric field. The semi-conductor material may be crystalline or amorphous; ferromagnetic, ferromagnetic or metamagnetic; for example chalcogenides and/or halides. It may be a compound of the type AB 2 X 4  where A is at least one of the elements Eu, Sr, Ba, Pb, Zn, Cd, Hg, Mg, Mn, Co; B is Cr, or Rh; X is S or Se. The oxides, sulphides, selenides or tellurides of Sa, Eu, Yt are also usable, as are Cd-Zn-Ga-Cr sulphide or selenide, Fe-Cd-Ag-Cr sulphide or selenide. The magnetic semi-conductor may also comprise a compound of at least one of the elements Eu, Sr, Ba, Pb, with at least one of the elements Cu, Ag, Au, Li, K, Na, Zn, Cd, Hg, Sn, Pb or at least one of the elements Lu, Y, Sc or at least one of the elements V, Mn, Fe, Co, Ni, B, Al, Ga, In, Tl and with at least one of the elements Cl, Br, I and at least one of the elements S, Se, Te. The semi-conductor element may also be of Ag or Cu doped Eu-Cr selenides. Constructionally the switching element has flat electrodes forming ohmic contacts on opposed faces and is subjected to magnetic fields axial or normal thereof, or a superimposed combination of such fields; the electrodes being energized from a voltage source over a series resistor. Specifically the switching element 71 (Fig. 2) has an area 41 of its surface forming a PN junction derived from appropriate choice of electrode material so that electrode 16 forms an ohmic junction and electrode 141 a unidirectional PN junction with the element. The electrode materials may be Cu, Ag, Au, Pt, Rh, Cr, Mo, Al, Ga, In, Pb, Zn, Cd, Hg or binary alloys thereof, and the switching characteristics of current as ordinate 20 and voltage as abscissa 21 are shown (Fig. 3) at 22 and 23 for low ohmic and high ohmic states, wherein the applied magnetic field flux densities are zero and IVs./m.<SP>2</SP> respectively, and a series resistor 125 is included to limit the low ohmic current. At transition the voltage source 25 is switched off momentarily to erase the low ohmic state.
Patent GB-584124-A (GB)
Title: Improvements relating to burners
IPC: F23D17/00
Filed: 1945-01-03
Abstract: 584,124. Pulverulent-fuel burners. FORGINGS & PRESSWORK (BIRMINGHAM), Ltd., EVANS, K. W., and HULME, G. W. Jan. 3, 1945, No. 14461/46. Divided out of Complete Specification of 578,239. [Class 75 (i)] A burner for pulverulent fuels comprises an inner tube 49 supplied with a mixture of gaseous fuel and air, an outer tube 41 supplied with secondary air through an outlet 47, and angularly spaced tubes 37 supplied with a mixture of pulverized fuel and air through a casing 42 having an inlet 45 all the tubes providing straight, unobstructed non-whirling paths to the combustion point. The tubes 37 are welded to a plate 38 bolted between the tube 41 and casing 42 and extend slightly beyond the tube 41.
Patent GB-199384-A (GB)
Title: Improvements in moulds for reactance coil supports
IPC: H01F27/00
Filed: 1923-06-01
Abstract: 199,384. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Dorfman, L.). June 16, 1922, [Convention date]. Moulding reactance coils.-Concrete supports for the convolutions of reactance coils are moulded in position around the previously wound conductor by means of a mould comprising a central collapsable core-portion, and radial members removably mounted thereon and arranged in superposed relation. The core comprises separate vertical walls 7 mounted on a base consisting of a number of arcuate, sections, and held together by bracing means. The mould members comprise each two L-shaped portions 8 having tongues 11 which engage in perforations 12 in the walls 7, and outwardly extending flanges 13 secured together by vertical channel members 14. The edges of the members 8 are provided with notches 15 to receive the coil convolutions 16, and similarly notched flanges 17 prevent displacement of the members.
Patent GB-932646-A (GB)
Title: Improvements in catamarans and other twin-keeled vessels
Inventor: O'BRIEN WILLIAM JOSEPH
IPC: B63B1/12
Filed: 1961-04-21
Abstract: 932,646. Floodable keels. BILL O'BRIEN Ltd. April 12, 1962 [April 21, 1961], No. 14509/61. Class 113. A twin-keeled vessel, e.g. a catamaran or a single-hulled vessel having twin bilge keels, in which both keels 3, 4 are hollow has means for differentially flooding said keels as and when required.
Patent GB-1133277-A (GB)
Title: Vinyl acetate-alkoxy polyalkylene glycol half ester copolymers, and their use in remoistenable adhesives
Inventor: LINDEMANN MARTIN KARL
IPC: C09J7/32
Filed: 1967-03-30
Abstract: 1,133,277. Adhesive coatings. AIR REDUCTION CO. Inc. 30 March, 1967, No. 14582/67. Heading B2E. [Also in Divisions C3 and C5] A substrate is coated with a composition comprising a water soluble-organic solvent insoluble remoistenable adhesive and a water insoluble-organic solvent soluble copolymer containing 40-95% by wt. of vinyl acetate units and 5-60% of alkoxy polyalkylene glycol ethylenically unsaturated dicarboxylic acid half-ester units of average molecular weight 100-1400, the weight ratio of adhesive to copolymer being 1:2-100:1. In an example a copolymer of vinyl acetate and an alkoxy, polyethylene glycol maleate half-ester was compounded with dextrine or polyvinyl alcohol and toluene and ethyl acetate and applied to paper sheets.