baber/WOPTO huggingface dataset:
Patent GB-347918-A (GB)
Title: Apparatus for polishing floors
IPC: A47L13/31
Filed: 1930-05-26
Abstract: 347,918. Floor polishers. SCHMID, J:, 4, Pfirsichstrasse, Zurich, Switzerland. May 26, 1930, No. 16145. [Class 19.) Floor-polishing apparatus comprises a casing 1 for polish forming a connecting element between a handle 10 and a distributing plate 3 set at an angle to the handle. Polish is ejected by a piston 7 hand-operated at 8. The polish is carried in a metal lining 2 having a resilient V-shaped opening 14 extending the entire width of the plate 3 and communicating with a smaller orifice 16 in the plate. The polish is applied by a detachable distributing member 15, which can be replaced by a polisher.
Patent GB-729384-A (GB)
Title: Apparatus for demonstrating theory of light
Inventor: NICOLSON WILLIAM HOLMES
IPC: G09B23/22
Filed: 1953-06-12
Abstract: 729,384. Optical apparatus. NICOLSON (SCIENTIFIC INSTRUMENTS), Ltd., W.B. June 12, 1953, No. 16177/53. Class 97 (1). [Also in Group XV] An apparatus for demonstrating theory of light comprises a source of light 13 within a container 1 which has a plurality of light outlets 3, 4, 5 and movable reflecting means 6, 7, for reflecting at least one of the resulting beams of light, the arrangement being such that on filters of different colour being inserted in the light beams the coloured beams can be projected on a screen 24, and by actuating the reflecting means the projected colours R, B, Cr can be superimposed to demonstrate the effect of colour mixing. Side apertures 4, 5 are narrower than aperture 3 so that similar bands of colour are projected on the screen. The colour filters are received in sockets 10, 11, 12. The axial filament light bulbs 13 is mounted in a holder slidable along a slot 15. In the other end wall 18 of the container is mounted a plano convex collimating lens 19, and socket 20 receives a comb 21 and a colour filter if required. The container is flanged at 23 for mounting on a light track board. The screen 24 is preferably of milk glass. The apparatus may be used with the light track board to demonstrate reflection and refraction using, for example, a lens and prism and a rotatable disc for measuring angles of refraction.
Patent GB-298688-A (GB)
Title: Process of manufacturing artificial silk and the like from viscose
IPC: D01D10/04
Filed: 1927-06-18
Abstract: 298,688. Leuchs, K. June 18, 1927. Apparatus for making filaments ; cellulose xanthates, processes for making filaments from. - Spun threads from viscose are supported on a foraminated aluminium carrier through which are successively forced or drawn the liquids required for desulphurizing and subsequent treatments, the desulphurizing re-agent comprising a hot dilute solution of an alkaline-reacting salt of a weak acid. The threads may be spun directly on to the aluminium carrier and the treatments preliminary to desulphurization applied thereon, or alternatively the spun thread, after preliminary treatment on the spinning spool, may be transferred to an aluminium twisting spool on which the desulphurizing treatment is applied. Suitable desulphurizing agents are the alkali and ammonium salts of the acids of the acetic acid group and of carbonic; boric, silicic, and phosphoric acids; the preferred reagent is sodium sulphite. Suitable apparatus comprises a vat d having a supply pipe e for the reagents and outlet pipes f connected to a pump k. Foraminated spools a of aluminium on which a mass of silk has been spun are piled above the pipes f in the vat, the uppermost spool being closed by a stopper h. The spools are preferably lined externally with felt and are spaced from one another and from the vat by packing g. Reference is made also to the treatment of a cake of silk obtained by centrifugal spinning.
Patent GB-1521176-A (GB)
Title: Plasticisation method
IPC: B29C48/67
Filed: 1976-04-22
Abstract: 1521176 Mixing apparatus WACKER - CHEMIE GmbH 22 April 1976 [9 May 1975] 16351/76 Heading B1C A composition is plasticized by passage through an apparatus comprising a coaxial cylindrical stator and rotor having projections on the facing surfaces, the width of the annular gap measured between the highest raised portions of the two surfaces not exceeding the greatest height of the projections. A suitable apparatus is that of Specification 1159472 or (as shown) that of Specification 1520490.
Patent GB-529604-A (GB)
Title: An improved hair curling appliance
IPC: A45D2/26
Filed: 1939-06-03
Abstract: 529,604. Hair curling appliances. VOLKEL, E. June 3, 1939, No. 16389. [Class 131] A hair curling appliance comprises a curling tongs or rod, the curling end of which is constructed to enable it to be used with a hair curler of the kind provided with flexible ends adapted to be turned over the curled lock of hair. The appliance may comprise a rod 1, Fig. 1, having a groove 4 in which a wire hair curler is mounted. Fig. 2 shows tongs provided with a groove for the curler and a recess 11 and knob 10 to accommodate an elastic cord for retaining the hair. The curler may comprise a tubular sheathing 13, Fig. 4, having wire ends 14, 15. The sheathing may be formed of horse hair or similar braiding or of cork made porous.
Patent GB-841268-A (GB)
Title: Improvements in or relating to coating apparatus
Inventor: CAMERON EWEN
IPC: B05C9/02
Filed: 1956-05-28
Abstract: 841,268. Coating webs. ILFORD Ltd. May 3, 1957 [May 28, 1956], No. 16436/56. Class 140. A continuously moving base material, e.g. film or paper base, is provided with a substantially uniform coating of a liquid, e.g. photographic emulsion, regardless of changes of thickness of the base by causing the base to become coated with the liquid and then directly to enter and move through a short tunnel filled with the liquid and having a rising pressure gradient in the direction of movement of the base, the tunnel being formed between the base material supported on a first surface so as to follow a constant track and a second surface having its generators parallel to those of the first surface, the width of the base being very much greater than the distance between the coated surface of the base and said second surface, and the base emerging from the liquid at the exit from the tunnel Preferably the base is coated with liquid by contact with its surface. For tunnel dimensions and liquid viscosity related so that the flow is streamline and assuming that edge effects are negligible and that surface tension effects are small, the thickness t of the coating carried off by the base is given by where A, B, m are constants, d is the height of the tunnel above the surface of the base, and (P-p) is the pressure gradient. For stability of coating thickness dt/dd = O when If the tunnel has parallel or concentric bounding surfaces, the optimum values are (P-P) = ZÁVl/d<SP>2</SP> and t = d/3, where V is the velocity of the base, l is the distance travelled through the tunnel and Á is the viscosity of the coating liquid. Typically a web 2 of the base material is fed around a roller 1 and is brought into surface contact with the liquid in a reservoir 3 and is then passed into the tunnel of height d formed between the second surface a 2 -a 1  on the member 4 and the roller 1. The pressure gradient is produced by the liquid-filled drain pipe 7 leading to an overflow device 8, the gradient being adjusted by vertical movement between the reservoir and the device 8.
Patent GB-550468-A (GB)
Title: Improvements in or relating to vacuum tube amplifiers
IPC: H03G7/02
Filed: 1941-12-22
Abstract: 550,468. Valve amplifying circuits. WESTERN ELECTRIC CO., Inc. Dec. 22, 1941, No. 16474. Convention date, Dec. 21, 1940. [Class 40 (v)] An amplifier having a plurality of push-pull stages connected in tandem is provided with a backward acting control circuit to maintain the output at a predetermined level and limiting means are associated with the output stage and a negative feedback path is provided to reduced the distortion produced by the .limiting means. The Figure shows a push-pull amplifier in which the bias of the input is controlled by voltage from the output applied through rectifier 17, resistances 20, 21 preventing excessive shunting of the output by the rectifier, which is delayed by the voltages across resistance 22. Bias voltage developed across condenser 16 is applied to both control and injector grids of the valves 4; 5 as described in Specification 506,128. The limiting or peak chopping is effected by grid current in resistances 48, 49 in the grid circuits of the output stages 12, 13 and by appropriate choice of bias voltage. Feedback paths 14, 15 are provided to limit the distortion while the effects of the longitudinal currents produced by control voltages are limited by the unshunted bias screen resistances 30 and 41 and by the retard coils 37, 38. The resistances 30 and 41 also assist to maintain the stages in balance while the use of push-pull stages avoids ripple voltage from the: power supply or: the control circuit producing disturbance while the absence of filters in the control circuit decreases the attack time. The amplifier may be a modulating amplifier for high percentage modulation to avoid sideband splash which is produced by over-modulation.
Patent GB-1048972-A (GB)
Title: Improvements in diamond and method for its production
IPC: B01J3/06
Filed: 1963-04-26
Abstract: <PICT:1048972/C1/1> A carbonaceous material, for example graphite is converted to diamond by subjecting the material to a pressure of at least 120 kilobars, raising the temperature of the material to at least 3700 DEG  K. to cause conversion of the material to diamond, continuing the temperature rise to above the carbon melting point to cause melting of at least part of the diamond, reducing the temperature so that pressure-temperature conditions are in the diamond stable region (Fig. 6) so that the molten carbon recrystallizes as diamond, and recovering the diamond from the apparatus, the carbonaceous starting material being doped with sufficient impurity, for example boron nitride, to provide electrical conduction when converted to diamond.
Patent GB-862055-A (GB)
Title: Improvements in stator winding machines
Inventor: ROGERS REGINALD
IPC: H02K15/085
Filed: 1956-05-29
Abstract: 862,055. Stator winding machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 29, 1957 [May 29, 1956], No. 16587/56. Class 35. A stator winding machine automatically changes the limits of the relative angular movement between the wire feed and the stator on completion of the winding of one pair of slots to the span for the next pair of slots. The machine described is the same as that in Specification 862,054.
Patent GB-413484-A (GB)
Title: Dimming device for electric lamps
IPC: F21V23/00
Filed: 1933-06-10
Abstract: 413,484. Lamp supports ; ceiling- roses. BAUR, E., Usine Du Vallon, Lausanne, Switzerland. June 10, 1933, No. 16641. Convention date, June 11, 1932. [Class 75 (iii).] A condenser 10 for dimming electric incandescent lamps is incorporated in a box or container 16 from, or on, which the lamp 4 is suspended or supported. The dimming switch 7, which is arranged to switch the lamp off, to connect it in series with the condenser, or to conneot it direct across the supply, may be mounted on a separate wall fitting or incorporated in the container 16 which may be a base member or ceiling rose or base block which is mounted on the ceiling or on the wall and serves as a base for the wall bracket, chandelier or ceiling fitting which carries the lamp. In the case of table lamps in which the arm carrying the lamp is supported on a base member, the condenser and its switch are mounted in the base member.
Patent GB-594744-A (GB)
Title: Improvements in parachutes
IPC: B64D17/00
Filed: 1945-06-30
Abstract: 594,744. Parachutes. PALING, D., JOHNS, T. F., and STEVENS, G. W. H. June 30, 1945, No. 16689. [Class 4] The cords 11 of a parachute are attached to the canopy 10 at the edge of the skirt, to permit relative movement between the canopy and cords in the direction of their length, but not transversely thereto, the gores of the canopy being so shaped that, when inflated, that part of each gore lying between the apex D of the canopy and the zone of maximum radius assumes a form such that the sections by any planes normal to both the bounding cords approximate to arcs PHQ, Fig. 2, of equal radius. The lower portion of the canopy is so shaped that the centre line of each gore approximates to a straight line parallel to the axis of the canopy. A vent may be provided in the canopy, or a central cord 12 may be provided between the apex and the meeting points of the cords 11. Mathematical formulae are quoted for deriving the shape of the gores, and particulars given of the gores for a parachute of approximately 20 ft. diameter not provided with an axial cord.
Patent GB-1468875-A (GB)
IPC: C01F7/068
Filed: 1974-04-17
Abstract: 1468875 Treating oil shale SUPERIOR OIL CO 17 April 1974 16828/74 Heading C5E [Also in Division C1] Hydrocarbons and sodium and aluminium compounds are produced from oil shale containing oil, nahcolite and dawsonite by: (a) separating nahcolite or sodium carbonate produced therefrom as the fine material from a crushing step; (b) heating the coarse oil shale material at 450-600 C. to recover hydrocarbons and to convert dawsonite to a more soluble aluminium compound; (c) leaching the aluminium from the heated shale or a combustion product thereof with caustic leach liquor of pH 11- 12À2 comprising Na 2 CO 3  solution of not more than 0À5 N and containing at most 6 moles of Na per mole of Al; (d) separating the leach liquor; and (e) precipitating Al(OH) 3 . An oil retort of the non-combustion type (Figs. 4a, 4b) may be used in which the particulate oil shale is tumbled and heated in a downwardly inclined rotating cylinder 40 for a time sufficient to recover the hydrocarbons. Hot gas enters conduits 41 at inlet 42 and leaves at 43 and is distributed by a manifold 44 at the upper end of the cylinder, providing indirect heating for the oil shale. The hot gas may be a combustion product from the subsequent burning of the spent oil shale. Hopper 46 and screw means 47 are provided to feed the shale to the rotating cylinder. An outer cylinder 52 allows a pressure to be maintained within the retort. Reference has been directed by the Comptroller to Specifications 1,166,785 and 1,323,180.
Patent GB-236244-A (GB)
Title: A device for boring holes having curved axes
IPC: B28D1/14
Filed: 1925-06-30
Abstract: 236,244. Staub, E. June 30, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Boring curved cylinders; drills.-In a device for drilling holes having arcuate axes. a curved rod 2 which carries the cutter 3 is surrounded by a helical steel wire 1 rotated by a motor M, the whole being mounted on a frame free to about the centre of curvature of the rod 2 and being pressed against the work by a suspended weight. Passages in the cutter permit the borings to escape.
Patent GB-1004107-A (GB)
Title: Improvements in or relating to centrifugal pump impellers
Inventor: HORTON RONALD FRANCIS
IPC: F04D29/22
Filed: 1962-05-02
Abstract: 1,004,107. Centrifugal pumps. SAMUEL OSBORN & CO. Ltd. April 30, 1963 [May 2, 1962], No. 16845/62. Heading F1C. [Also in Division B3] A centrifugal pump impeller having an axial inlet communicating with a number of equispaced arcuate fluid flow passages includes two companion members joined together by welding, one member 10, Fig. 1, being in the form of a back plate having a number of arcuate ribs 13 defining a "catherine wheel like" formation of the flow passages, and the other member 16, Fig. 3, being in the form of a ring having a number of arcuate openings 18 complementary in number and formation to the ribs 13. The members 16 and 10 are castings, the member 10 having a number of radial strengthening ribs on its rear face. The arcuate openings 18 are of V cross-section tapering to a narrow width at the back of the member 16. On assembly the member 16 is positioned on the tops of the ribs 13 of the member 10 with tongues 15 locating the openings 18 and with a boss 14, forming the impeller inlet, locating a bore 17. Weld metal is then applied, as by the shielded arc process, to the openings 18 and between the boss 14 and bore 17. Finally, the composite body is machined to remove surplus weld metal and is reduced in diameter to expose the outer ends of ribs 13. Prior to assembly the members 10, 16 may be fettled, shot blasted, polished or otherwise coated with metal or other material to produce a smooth finish and prolong the life of the impeller.
Patent GB-1452811-A (GB)
Title: Construction for marine or submarine installation
IPC: B65D88/06
Filed: 1974-04-17
Abstract: 1452811 Subaqueous foundations VATTENBYGGNADSBYRAN AB 17 April 1974 [26 April 1973] 16883/74 Heading E1H The foundation or support 3 secured to the lowermost surface 2 of a subaqueous tank 1 comprises downwardly directed support elements 4 defining cells 5 which are open at the bottom. The support elements penetrate into any deposits present on the bottom of a sea or lake, the deposits being received in the cells to a degree dependent on the contour of the bottom. Provision is made for filling from above with a granular material the remaining spaces of the cells, the arrangement also being adapted for removing the granular material from the cells to facilitate the lifting of the tank and support before moving them to another location.
Patent GB-144891-A (GB)
Title: Improvements in or relating to bolts, or the like
IPC: F16B13/06
Filed: 1919-07-05
Abstract: 144,891. Ottewill, W. G. July 5, 1919. Screw-sockets; bushes, bolthole.-A fastening isuitable for securing bodies, such as theatre seats, to wooden floors comprises a two-part or split bolt or socket 1 with a head 5, a conical nut 7 and a screw 2 engaging the nut. The socket with the screw and nut enclosed is passed through the part to be secured into a hole in the floor, and by turning the screw the conical nut is drawn up and expands the socket into engagement with the walls of the hole. In a modification, the screw is formed integral with the cone and engages a thread in the head of the socket, the shank of which is split. In place of a cone, a wedgeshaped member provided with a screw thread may be employed. The outside of the socket is preferably formed with ribs or ridges 8.
Patent GB-421065-A (GB)
Title: Improvements in or relating to means for supporting cathode-ray tubes
IPC: H04N5/645
Filed: 1933-06-13
Abstract: 421,065. Cathode-ray tubes. BRAY, T. E., and BAIRD TELEVISION, Ltd., 58, Victoria Street, London. June 13, 1933, No. 16901. [Class 39 (i)] In a television or other apparatus, a cathoderay tube with means, such as plates, for deflecting the ray is adjustably supported so that a direction of deflection can be varied by adjusting the orientation of the tube with respect to a cabinet or supporting frame or to a mask through which the picture on the screen of the tube is viewed. The picture can thus be adjusted to make its edges parallel to those of the mask or can be rotated through a right angle around the central axis of the tube to change from vertical to horizontal scanning. A shaft 3 carrying the holder 2 for the tube 1 is rotatably mounted in the cabinet and is manually rotated by gearing 5 and a coupling 8. Stops may limit the angle of rotation. Current is supplied to the tube I through flexible leads 10.
Patent GB-1019229-A (GB)
Title: Compounds of tin
IPC: B43K24/16
Filed: 1963-04-30
Abstract: Polymers or copolymers of one or more monoolefins having from 2 to 4 carbon atoms in the molecule may be stabilized against oxidation or thermal degradation by the addition of a hydrocarbon tin salt of a carboxy mercaptal having from 1 to 3 hydrocarbon group(s) attached directly to at least one tin atom, and wherein the carboxy mercaptal is attached to said tin atom through an oxygen atom, or precursors thereof.  Halogen containing resins may be likewise stabilized by the addition of the mono- or tri-hydrocarbon tin salt referred to above. Many examples are given.ALSO:The invention comprises a hydrocarbon tin salt of a carboxy mercaptal having either 1 or 3 hydrocarbon group(s) attached directly to at least one tin atom, and wherein the carboxy mercaptol is attached to said tin atom through an oxygen atom. The carboxy mercaptal may be a hydrocarbon-, or hydroxyaryl-bis-(mercapto-alkanoic acid) having from 2 to 9 carbon atoms in each alkanoic acid group.  Suitable mercaptals may be represented by compounds of the formulae <FORM:1019229/C2/1> wherein n is an integer from 1 to 8, m is 0 or an integer from 1 to 8, R2 and R3 are each hydrogen, alkyl, aralkyl, alkenyl, aryl, alkaryl, hydroxyaryl, or alkoxyaryl, or together form the pentamethylene group, R4 and R5 are each alkyl, aralkyl, aryl, alkaryl, a hydrocarbon carboxylic acid or ester thereof, R7 and R10 are each alkyl, aralkyl, aryl or alkaryl, R8 is hydrogen, alkyl, aralkyl, aryl or alkaryl, R19 is hydrogen or alkyl and R20 is alkyl. Suitable precursors of the hydrocarbon tin salt are (1) a trihydrocarbon tin oxide, a monohydrocarbon stannoic acid or a monohydrocarbon tin alkoxide and (2) a mercaptal containing one or more free carboxyl groups.  Many suitable tin compounds are specified as starting materials.  These hydrocarbon tin salts may be used to stabilize halogen-containing resins, e.g. P.V.C., against oxidation or thermal degradation.
Patent GB-396016-A (GB)
Title: Improvements in fasteners for bonnets of automobiles and for analogous purposes
IPC: E05B65/19
Filed: 1932-12-16
Abstract: 396,016. Hook fastenings ; bolts. HARLEY, C. E., 121, Marlborough Road, Bowes Park, and RIPAULTS, Ltd., 1, King's Road, St. Pancras, both in London. Dec. 16, 1932, No. 17095/33. Divided on 395,776. [Classes 44 and 89 (i).] In a motor - car bonnet or like fastening, a spring 16 is provided to keep the end of the screwed shank 4 of a slidable hook 3 up to the threaded bore 5 of a rotatable handle 2 to give a lead when the retracting movement is started. A spring- pressed washer 6, as described in Specification 395,776, may be incorporated in the fastening.
Patent GB-1524938-A (GB)
Title: Catamarans
IPC: B63B39/06
Filed: 1977-04-25
Abstract: 1524938 Catamarans CANTIERE NAVALTECNICA SpA 25 April 1977 [28 Oct 1976] 17099/77 Heading B7A A catamaran comprises two hulls 10 connected by a deck 11 and two or more hydrofoils 12 extending between the hulls and arranged during movement of the vessel to support a proportion of the weight to reduce drag and increase the distance between the water level and the lower part of the deck. Each foil has at least one vertical strut 13 connecting it to the deck 11. Flaps 14, 15 and 17, controlled by gyroscopic-accelerometric systems, control the vessel in roll, pitch and yaw respectively. In Fig. 4, not shown, the hydrofoils are of inverted V-shape form, with the vertical struts extending between the tips of the V and the deck.
Patent GB-1022321-A (GB)
Title: Improvements in or relating to an extruding or compounding machine for plastic materials
IPC: B29C48/85
Filed: 1961-05-11
Abstract: 1,022,321. Mixing; pug - mills. CYRIL ADAMS & CO. Ltd., and H. J. PLUMMER. Aug. 9, 1962 [May 11, 1961], No. 17200/61. Heading B1C. [Also in Division B5] A mixing machine comprises within a conical barrel 18 a feed screw cone 10, the barrel 18 being pivotally mounted on a supporting structure so that together with any heating and cooling parts still connected thereto it may be swung clear of the feed screw cone 10 to facilitate cleaning. The feed screw cone defines an angle of 60 degrees and is hollow having an axial sleeve 11 through which passes a hydraulically adjustable bar 12 at the forward end of which is connected a mandrel 13 solely supported by the forward end of the cone 10. The barrel flange 22 is attached to a pair of side arms connected to a horizontal shaft by which means an arm carries a counter weight, Fig. 2 (not shown). A feed hopper 28 can be raised when it is desired to swing the barrel 18 away from the cone 10. Electric strip heaters and cooling tubes may be connected to the barrel 18 and do not require to be removed during the cleaning operation.