baber/WOPTO huggingface dataset:
Patent GB-919350-A (GB)
Title: Improvements in and relating to vehicles for travelling over land and/or water
IPC: B60V1/00
Filed: 1959-04-27
Abstract: 919,350. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. April 27, 1959 [April 30, 1958], No. 14313/59. Class 4. In a vehicle for travelling over land and/or water and which in operation is supported above the surface of the land and/or water by at least one cushion of pressurised gas formed and contained beneath the vehicle, at least in part, by a curtain of moving fluid issuing from a position in the lower part of the vehicle, means are provided for recovering into the vehicle from a position inboard of the position from which the curtain forming fluid issues, at least part of the fluid forming the curtain and employing said recovered fluid for further use of the energy therein. The vehicle 1 is provided with a fan 11 feeding a supply duct 6 which opens at an annular supply port 7, air passing from port 7 to transfer port 9 through transfer duct 8 for emission from an outlet transfer port 10, thereby forming a primary curtain 2 and a secondary curtain 3. Other embodiments show multi-stage recirculating systems and fans may be provided in the duct 6 to provide a closed-circuit system. Specifications 854,211 and 893,715 are referred to.
Patent GB-218272-A (GB)
Title: Improvements in or relating to the manufacture of concentrated acetic acid from diluted acetic acid
IPC: C07C51/48
Filed: 1924-06-13
Abstract: The process of the parent Specification, for concentrating dilute acetic acid solutions by extraction with a solvent insoluble or nearly so in water and having a high boiling point, is modified by passing the vaporized dilute acetic acid through the preferably pre-heated solvent of boiling point higher than 150 DEG  C.  In an example the vapours of acetic acid entering the bottom of a distilling column are met by a spray of the pre-heated solvent.  The water vapours escape from the top of the column and the solvent charged with acetic acid is syphoned to a distilling plant.  The heat of the vapours and of the extract are utilized in a heat-exchanger or for secondary heating purposes.
Patent GB-271652-A (GB)
Title: Improvements in spirit lighters suitable for igniting cigars and the like
IPC: F23Q2/06
Filed: 1926-06-08
Abstract: 271,652. Caen, H. June 8, 1926. Oil supply fittings. - The spirit container a of a pocket igniter comprises a force pump for filling purposes. In one form, the container a, Fig. 1, is provided with a slidable cap b, provided with a hole c. The cap b is partly withdrawn from the casing and immersed in spirit, which flows through the hole c into the cap and is forced into the absorbent material in the container a when the cap is returned to the normal position. In a second form, the container a is closed at the upper end by a washer l through which passes a rod m secured to end caps n, b, the wick tube h being mounted in the washer l and passing through a hole in the cap n. In other forms, the cap b is replaced by a hollow plug, the inlet hole is provided in the lower end of the container a, or an inlet hole is dispensed with, the cap b, carried by the rod m, being adapted to be withdrawn from the end of the container to provide an inlet.
Patent GB-1249398-A (GB)
Title: Improvements in and relating to snap action apparatus
IPC: H01H5/30
Filed: 1969-03-19
Abstract: 1,249,398. Snap-action springs. ROLAMITE TECHNOLOGY Inc. 19 March, 1969 [29 March, 1968 (3)], No. 14451/69. Heading F2S. [Also in Division H1] In a snap-action switch the snap spring 220, Fig. 28, comprises a thin normally flat sheet of resilient material of generally tapered or elliptical form at the ends 244, 246, Fig. 29, and strained as by insertion of a rigid member 226 with end grooves 266 in a central opening 222 whereby the ends take up a generally conical form. The arrangement is such that the crossbuckling modulus varies along the length of the ends 244, 246 so that on initial actuation of the switch as by moving actuator 230 anti-clockwise the pressure at the contacts 214, 208 increases and the sheet buckles initially near the contact region (as shown) and progressively buckles towards the central region at which time the whole assembly snaps over. The blade 220 is mounted by integral lugs attached to terminals 216, 218 through which electrical connection is made to one or more contact strips attached to the blade 220 on one or both faces by sheet adhesive material with intermediate layers of insulating material (238), (240), Fig. 32 (not shown). In the above embodiment the snap blade 220 comprises a flat sheet with a central aperture strained endwise by a rigid insert 260 whereby the unstrained radius of curvature 252 at the ends of the central aperture 222 is greater than that of the groove 266 and is strained to fit the radius of the groove 266 when assembled. In other embodiments the snap spring blade, Fig. 24, may have pairs of end lobes 132, 138 and is strained by double bending at folds 146, 148. Alternatively an elliptical end 164, Fig. 27, may have a semi-circular arrangement of apertures 166 and is radially corrugated as at 168, 170 to force the lobe 164 to a conical form. In all of the examples longitudinal corrugations 158 increase the rigidity between the conical end lobes and ensure that the lobes at each end move oppositely so that one is always convex on its upper surface when the other is concave.
Patent GB-255032-A (GB)
Title: Improvements in coal or ore washing apparatus
IPC: B03B11/00
Filed: 1926-06-08
Abstract: 255,032. Coppee et Cie, E. July 9, 1925. [Convention date]. Upward-current classifiers. - In apparatus for washing coal or ores of the kind in which the material is carried in a stream of water along a longitudinally grooved or corrugated shoot 1 over passages 3 up which water currents ascend, each aperture 4 being fitted with a revolving drum 5 which may also be grooved or corrugated in alignment with the flow of the trough 1, an adjustable valve, slide or the like 6 is provided in connection with each aperture 4 to vary the section of the passages through which the heavy constituents are discharged.
Patent GB-202615-A (GB)
Title: Improvements in or relating to rotary drying apparatus
IPC: F26B11/02
Filed: 1923-06-01
Abstract: 202,615. Gross, A., and Soc. Installations Thermiques. Aug. 16, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Continuous - discharge apparatus, rotary; heating-fittings.-The air supply to a rotary coffee drier 1 is heated by being forced by a fan through a preheating chamber 13, which is heated by the products from a furnace 11, the products passing downwards through the preheater to the flue 12 without contacting with the air which passes upwards through the preheater and through a pipe 10 into the drier. After passing through the drier, the coffee is conveyed to a fanning apparatus for removal of dust &c. and from thence to the torrefier.
Patent GB-992110-A (GB)
Title: Paper product
Inventor: DRUMMOND ARTHUR ERNEST
IPC: B65D65/40
Filed: 1960-04-26
Abstract: Corrugating medium comprises two plies of relatively thin corrugating medium made of reclaim paper and stuck together face to face by an adhesive that incorporates a fibrous filler.  The adhesive may be sodium silicate, gelatinized starch, or natural or synthetic resin. The fibrous filler may be wood, flour, sawdust, asbestos meal, glass floc or rayon floc, and may be applied as a dusting to an adhesive coating on one layer before the layers are stuck together.  The product may be corrugated and faced on one or both sides. Specifications 532,004, 654,353 and 579,701 are referred to.
Patent GB-1270241-A (GB)
Title: Improvements in or relating to gas burners
Inventor: MAYNARD GEORGE HENRY
IPC: F23D14/58
Filed: 1968-03-27
Abstract: 1,270,241. Gas burners. BARTER & SONS Ltd. 12 May, 1969 [27 March, 1968], No. 14740/68. Heading F4T. A gas burner includes spaced packs 3 of thin plates 4, 5 formed to provide in each pack a number of passages leading from an inner edge of the pack to an outer edge thereof, and a supporting body 1 on which the packs are mounted to project outwards a substantial distance therefrom. As shown, each pack consists of flat and corrugated plates, 5 and 4, and the plates 5 are formed by bending a flat circular ring along a diameter so as to provide two plates between which the corrugated plate 4 is sandwiched. The packs may simply be pressed into slots in the burner body or may be connected to the body by local welding or by cement. More than one pack may be used in each slot, and the pitch of the corrugations in the plates 4 may vary from pack to pack. The gas/air mixture injector system comprises a mixing tube 2 and jet unit 7, and is described in Specification 1,222,354.
Patent GB-738580-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J75/00
Filed: 1952-06-11
Abstract: The invention comprises 3-hydroxy-11a -acyloxy-20-ketopregnanes and a method for the conversion of a 3,20-diketopregnane to a 3-hydroxy-20-ketopregnane by bringing into contact in solution a 3,20-diketopregnane containing in the 11-position hydrogen or a hydroxy, acyloxy or oxo group and one to four equivalents of an alkali metal borohydride (based on the amount required for the reduction of one oxo group).  It is preferred to use sodium or lithium borohydride, and about 1 to about 1.25 equivalents of the alkali metal borohydride may be used.  The time of treatment may be within the range of 2 minutes to 2 hours, reaction temperatures between 0 DEG  and 100 DEG  C. being satisfactory.  The solution may be formed in an alkanol, e.g. methanol, ethanol or isopropanol, dioxane or tetrahydrofuran, and a small amount of water may be used with any of these solvents.  In the examples the following compounds are prepared:-3b -hydroxy-20-ketoallopregnane, 3a , 11a  - dihydroxy - 20 - ketopregnane, 3b ,11a  - dihydroxy - 20 - ketoallopregnane, 3a - hydroxy - 11a  - acetoxy - 20 - ketopregnane, 3b  - hydroxy - 11a - acetoxy - 20 - ketoallopregnane, 3a  - hydroxy - 11,20 - diketopregnane and 3b  - hydroxy - 11,20 - diketo - allopregnane. The 3a  - hydroxy - 20 - ketopregnanes and 3b  - hydroxy - 20 - ketoallopregnanes containing in the 11-position an a -formoxy, propionoxy, isopropionoxy, butyroyloxy, valeroyloxy, hexanoyloxy, heptanoyloxy, octanoyloxy, benzoyloxy, phenylacetoxy, succinoyloxy and cyclopentylpropionoxy group are also referred to. Specification 738,635 is referred to.  11a -Hydroxyprogesterone is prepared from progesterone by the action of spores of culture RH176 (Rhizopus arrhizus strain) in a sterile saline suspension.  11a  - Acyloxy - 3,20 - diketopregnanes and 11a  - acyloxy - 3,20 - allopregnanes are prepared by reacting 11a -hydroxy-3,20-diketopregnane and 11a  - hydroxy - 3,20 - diketoallopregnane with the anhydrides of acetic, propionic, isopropionic, butyric, valeric, hexanoic, heptanoic, octanoic, benzoic, phenylacetic, succinic and cyclopentylpropionic acids.
Patent GB-333562-A (GB)
Title: Winding apparatus for portable gramophones
IPC: G11B17/02
Filed: 1929-05-11
Abstract: 333,562. Kuchenmeister, H. J. Jan. 21, 1929, [Convention date]. Hand driving-mechanism.-The winding spindle d of a gramophone motor is inclined so as to protrude through a rigid guide e in the motorboard b and is provided with a screwed socket to receive the stem f of a detachable handle. The cranked portion f<1> of the handle is at an obtuse angle with the stem f. The invention obviates the necessity for an opening in the wall of the casing a to allow the winding handle to pass through it. Specification 273,815, [Class 40 (ii), Phonographs &c.], is referred to.
Patent GB-500245-A (GB)
Title: Improved loose leaf binding mechanism
IPC: B42F13/00
Filed: 1938-05-18
Abstract: 500,245. Loose-leaf binders. KAUFMANN, P. May 18, 1938, No. 14809. Convention date, Nov. 28, 1937. [Class 146 (i)] A device for holding looseleaves comprises a base b with a resilient sheet-metal member a attached thereto and having means for releasably securing the free end of the member a when it is bent into arch shape, the member a returning to its completely-open position when released. In one form, the securing means comprise a tongue c on the base b adapted to engage a slot o or slots near the free end of the member a, but pins may be provided on the tongue c to engage holes in the member a as an alternative. To facilitate manipulation of the member a it may be provided with a slot, or projection, or corrugations giving a better grip thereof. The parts a, b, c may be integral with one another and one or more members a may be formed on one base b. Flanges or holes may be provided on the base b for its attachment to a carrying member.
Patent GB-357530-A (GB)
Title: A process for diminishing the explosiveness of explosive gaseous mixtures
IPC: C06B23/00
Filed: 1930-05-14
Abstract: The Specification as open to inspection under Sect. 91 (3) (a) describes the addition of a small quantity of one or more halogen derivatives or phenolic derivatives, or both, to liquid fuels &c. to reduce the explosiveness of the vapours.  This subject-matter does not appear in the Specification as accepted.ALSO:The explosiveness of explosive gaseous mixtures, such as a mixture of fire-damp and air, is reduced by adding to the gaseous mixtures a small quantity of one or more halogen derivatives, or phenolic derivatives, or both. Specification 308,661, [Class 81 (i), Disinfecting &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the addition of such derivatives to liquid fuels, insecticides, and extraction liquids.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1500494-A (GB)
Title: Pyroscrubber
IPC: B01D49/00
Filed: 1974-04-03
Abstract: 1500494 Burning waste gases ALCAN RESEARCH & DEVELOPMENT Ltd 2 April 1975 [3 April 1974] 14886/74 Heading F4B Carbon or other combustible particles entrained in waste gas are burned in a refractory lined combustion chamber divided into a first passage 26 to which waste gases are fed at one end through an inlet 29, and air is admitted through a number of inlets 3I near the waste gas inlet, and a second passage 27 extending from the end of the first passage opposite the inlet so that the flow of the burning gases is reversed between the two passages. A burner 34 is provided at the inlet end of the passage 26. An exhaust outlet is arranged at the end of the second passage. The passages 26, 27 are separated by a horizontal refractory covered partition 24, and the exhaust outlet 36 is arranged at the side of the bottom passage 27. Additional water waste gas mixture may be added through inlets 33 spaced from the inlet 29. The outlet to the chimney comprises a tapering passage to which additional air may be supplied, (Fig. 2) or which may contain a damper. The arrangement is particularly intended for cleaning the waste gases from a rotary kiln coke calciner (Fig. 5) the additional waste gas/water vapour mixture being the effluent from a coke cooler, and the gases from the combustion chamber being fed to a heat exchanger.
Patent GB-833159-A (GB)
Title: Control apparatus for a remote dictation system
IPC: H04M11/10
Filed: 1958-05-09
Abstract: 833,159. Centralized dictation systems. DICTAPHONE CORPORATION. May 9, 1958 [May 9, 1957], No. 14894/58. Class 40 (4). The dictating machine has control equipment responsive to at least one discrete signal frequency sent over the normal telephone line from a signal generator at a dictator's substation, the generator using power derived solely from the direct voltage normally maintained on the line. As shown, depression of a button 27 or 33 at a substation, Fig. 1, causes the momentary establishment of a series resonant circuit comprising an inductor 20 and a capacitor 22 or 24. Hence an A.C. impulse of corresponding frequency is sent over the telephone line 11 to the central control equipment, Fig. 2, where it causes the starting or stopping of a recording machine (not shown) by means of tuned amplifiers 56 and 58 having relays 68 and 76 respectively in their output circuits. A filter 17, Fig. 1, prevents the signal frequencies from reaching the handset 12.
Patent GB-1245772-A (GB)
Title: Improvements in sliding windows
Inventor: RILEY DEREK ARNOLD
IPC: E05C17/64
Filed: 1968-03-28
Abstract: 1,245,772. Sliding windows; balancing. BECKETT, LAYCOCK & WATKINSON Ltd. 27 Feb., 1969 [28 March, 1968], No. 15011/68. Heading E1J. In a window particularly for marine uses and having a framed or sashless pane 26 slidable within channels 25 which channels can be moved alternatively to pressure sealing contact of the pane with a resilient gasket 23 around the frame and away therefrom for sliding movement of the pane the means for moving the channels 25 comprises a shaft 31 rotatable in bearings 32 in the fixed frame 30 and extends cross-wise of the pane and has at each end cam or toggles 33, 36 pivotally connected to the two channels 25 to move them as aforesaid on rotation of the shaft 31 by means of a manually rotatable quick pitch screwed member 39 coupled by a nut 41 engaged on the member 39 rotatable by handle 40 the nut 41 having thereon bosses 43 engaged in forks 42 secured to shaft 31 so that rotation of the handle through 180‹ moves the nut along member 39 to rotate the forks and hence shaft 31 to move toggles 33, 36 and the channels to or from the gasket 23. The upper part of the pane is guided by a wedge-shaped guide 71 Fig. 2 not shown. The pane is balanced by a coil spring 50 around shaft 31 with one end anchored to the shaft at a stop peg 52 prevented from rotation in one direction by a stop block 55, the other end of the spring being fixed to a fusee 53 rotatable on the shaft and around which a cable attached to the lower edge of the pane, is wound.
Patent GB-1007033-A (GB)
Title: Production of alkylate and products produced therefrom
IPC: C07C2/30
Filed: 1962-04-18
Abstract: Detergent alkylates are prepared by polymerizing 4-methylpentene-1 in presence of a catalyst selected from the hydrides of beryllium, aluminium, gallium or iridium and derivatives of these hydrides in which one or more hydrogen atoms are substituted by alkyl or aryl radicals, and condensing a fraction of the polymerization product in the C12-C18 carbon number range with benzene in the presence of an alkylation catalyst.  Preferably, polymerization of the feed gas is carried out at 100 DEG  to 350 DEG  C. at 100 to 3500 p.s.i.g. to produce the dimer 2-isobutyl-6-methylheptene-1 in presence of aluminium triethyl or aluminium tributyl.  The feed gas may contain up to 25% by weight of other 4-methylpentenes or n-hexenes.  A suitable feed gas is obtained by dimerizing propylene in presence of sodium metal dispersed on an anhydrous potassium compound, e.g. potassium carbonate, as described in Specification 933,253. Condensation of the C12-C18 fraction with benzene is carried out in the liquid phase at - 20 DEG  to 100 DEG  C. in presence of AlCl3, BF3 or anhydrous hydrogen fluoride.  In an example 4-methyl-pentene-1 was dimerized at 160 DEG  C. and 1500 p.s.i.g. in presence of aluminium triethyl, and subsequently condensed with benzene, the mole ratio of benzene to dimer being 20: 1 in presence of anhydrous hydrogen fluoride.  The product material was fractionated to yield a light alkylate boiling below 280 DEG  C., a detergent alkylate boiling at 280-305 DEG  C. and a heavy alkylate residue boiling above 305 DEG  C.  The detergent alkylate fraction was converted to a sodium sulphonate in conventional manner and tested for biological degradibility by treating with sewage effluent.ALSO:Detergent alkylates, prepared by polymerizing 4-methylpentene-1 in presence of a catalyst selected from the hydrides of beryllium, aluminium, gallium or indium and derivatives of these hydrides in which one or more hydrogen atoms are substituted by alkyl or aryl groups, and condensing a fraction of the polymerization product in the C12-C18 carbon number range with benzene in presence of an alkylation catalyst are sulphonated by conventional means, e.g. using sulphuric acid or sulphur trioxide to produce detergents having improved properties of biological degradability.  The Specification describes the action of the above detergents upon sewage effluent.
Patent GB-582826-A (GB)
Title: Apparatus for sorting sheet materials
IPC: B07C5/08
Filed: 1944-08-08
Abstract: 582,826. Sorting by gauging. C.A.V., Ltd., and TAUSSIG, R. Aug. 8, 1944, No. 15057. [Class 106 (ii)]. In apparatus for sorting pieces of sheet material according to their thickness of the kind in which the material is fed between rollers one of which is laterally movable with respect to the other, the sorting is effected by a deflector movable to either side of a central position by a pair of electromagnets controlled by a pair of switches responsive respectively-to opposite movements of the laterally movable roller. The rollers a, b between which mica strips to be sorted are fed, are mounted on horizontal parallel spindles carried in bearings f, j. The bearing f is formed on a support g secured to a base plate h and carries a spindle coupled to a motor i. The bearing j is hinged to the support by a vertical strip 2 located in slots in the bearing and the support, and carries projections p adapted to operate switches n through plungers o when the bearing moves from a position corresponding to normal spacing of the rollers. The bearing is loaded to urge the roller b towards the roller a by a weight 4 on an arm 5 secured to an arm 6 hinged to a lug. m on the plate h. A deflector r anchored to a spring strip s and arranged under the outlet guide g directs the mica strips into a central receptacle v if they are of normal thickness but is moved to left or right to divert the strips to other receptacles if below or above normal thicknesses respectively. Movement is effected by cores t of solenoids u controlled by the switches n. A pivoted finger 7 adapted to engage the side of a strip is adapted to operate a switch z controlling a solenoid f, Fig. 4, with a core z carrying a catch w<1> adapted to engage the strips a to lock the deflector in the correct position for the mica strip then being fed.
Patent GB-110583-A (GB)
Title: Improvements in or connected with Reply or similar Envelopes.
Inventor: CHANDLER GEORGE MANCHESTER
IPC: B65D27/22
Filed: 1916-10-24
Abstract: 110,583. Chandler, G. M. Oct. 24, 1916. Envelopes.-A reply envelope with attached letter-sheet comprises an address receiving portion a with flaps b, e having slots d, f which are engaged, when the flaps are folded by a tongue h cut out of the sheet i. The parts b, e, i, may be folded on either side of the part a so as to allow for readdressing. Portions b<2> are cut out of the flap b to permit the edges b<1> of the flaps to be folded behind the letter-sheet when closed. Reference has been directed by the Comptroller to Specifications 17251/90, 25975/07, 9868/12, 11707/14, and 21558/14.