baber/WOPTO huggingface dataset:
Patent GB-336222-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/26
Filed: 1929-07-05
Abstract: 336,222. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabricken). July 5, 1929. Low-pressure metallie-vapour apparatus.- In electric discharge tubes for the emission of rays, such as ultraviolet rays, wherein the discharge is carried wholly or partly by a substance liable to attack the wall of the tube or to be deposited thereon, the part of the tube wall intended for the passage of rays is coated with a substance which, under the influence of the discharge-carrying substance, prevents a decrease in the transparency of the tube wall to the rays to be emitted. The tube wall may be coated with a substance which prevents the discharge-carrying substance from being deposited thereon, for example the interior of a mercury vapour lamp may be coated with calcium fluoride. Alternatively, the part of the tube wall intended for the emission of rays may be coated with a substance which converts the discharge-carrying substance deposited thereon into products which are volatile or do not absorb the rays; thus, when the discharge occurs in magnesium vapour, which is liable to attack glass and quartz and to form a deposit thereon, the tube wall may be coated with either chloride or fluoride of potassium which, reacting with magnesium, respectively produce magnesium chloride or fluoride and potassium, the chloride or fluoride being deposited on the wall and allowing the passage of the rays generated in the tube, and the potassium being volatilized from the tube wall and deposited in the upper part of the tube. The internal surface of a tube having a magnesium discharge may also be coated with potassium boron fluoride. When the discharge tube contains sodium vapour the wall may be coated with sulphur or phosphorus, resulting in the formation of either sodium sulphide or sodium phosphide on the wall, both of which allow the passage of the rays from the tube. Preferably the sulphur or phosphorus are not applied to the tube wall directly, but upon a substance such as sodium chloride which is applied first upon the wall and absorbs sulphur or phosphorus better than the material of the wall. In the example shown, the foot 2 of the discharge tube 1 supports an incandescent cathode 3 and two anodes 4, 5, together with a wire 6 which is disposed between the anodes and is coated with potassium chloride before its insertion into the tube. After the tube is exhausted a heating current is passed through the wire by means of leads 7. 8 to volatilize the potassium chloride which is deposited on the spherical part of the tube.
Patent GB-370776-A (GB)
Title: An improved brush for cleaning hollow vessels
IPC: A46B5/00
Filed: 1931-07-21
Abstract: 370,776. Brushes. EDWARDS, R. B., Kenegie Lodge, Gulval, Penzance, Cornwall. July 21, 1931, No. 20786. [Class 19.] A collapsable brush of known kind for cleaning the insides of hollow vessels comprises a metal or wood cylinder A attached to spiral steel springs B carrying cotton waste or bristles G. The brush is expanded or collapsed by a rod D attached at F to the springs B. The rod A may be held in the extended position by notches H engaging the edge of the tube A. Specification 782*/87, [Class 138, Washing &c.], is referred to.
Patent GB-735052-A (GB)
Title: Devices for holding and displaying articles on the mudguards of cycles
Inventor: HEFFORD CHARLES GEORGE
IPC: B62J11/00
Filed: 1952-08-19
Abstract: 735,052. Mudguards. STADIUM, Ltd. Nov. 19, 1953 [Aug. 19, 1952], No. 20810/52. Class 136(1). A device for holding a flag or other article on the mudguard of a cycle consists of a piece of sheet metal 1, Fig. 1, having a rectangular part 2 and two arms 4 each having a lateral extension 5, the rectangular part 2 being bent to form a socket 3, Fig. 2, with the two arms 4 substantially parallel to one another and each extension 5 being bent to form a flange which with the socket 3 vertical will bear on the mudguard 8 in position to be secured to it by U- shaped clips 6 and screws 7. The device receives the stem 10 of a flag or the like. Alternatively, there may be only one arm 4.
Patent GB-1423622-A (GB)
Title: Lighting units
IPC: F21V7/09
Filed: 1973-05-02
Abstract: 1423622 Lamps H HUTZ 2 May 1973 [8 May 1972 17 Feb 1973] 20841/73 Heading F4R A lighting unit comprises a reflector 11 which is rotationally symmetrical about an axis parallel to the beam of light emitted by the unit and a tubular discharge lamp 15 which has a relatively short illuminating arc 25 occupying only a minor part of the total length of the lamp, the lamp extending transversely to the reflector through diametrically opposite apertures therein so that the arc is located entirely within the reflector and the ends of the lamp project outside the reflector. The reflector may consist of a spherical rear section 12 and paraboloidal front sections 14, 19, the rear section having a slot 20 to receive the lamp, whereas in a modification (Fig. 5, not shown) the front and rear sections are separable and the front edge of the rear section has diametrically opposite slots (40) to receive the lamp. The vertex of the rear section has an inwardly directed generally conical indentation (31) whilst in a further modification (Fig. 6, not shown) the tip of the indentation is removed to form a hole (34). The surface of the reflector may be highly polished or granular.
Patent GB-1096085-A (GB)
Title: Devices for basting applied to sewing machines
IPC: D05B81/00
Filed: 1966-05-11
Abstract: 1,096,085. Sewing machines. NECCHI S.p.A. May 11, 1966 [June 3, 1965], No. 20856/66. Heading D1G. A device adapting a sewing machine for basting comprises a needle mounted on a movable needle support, and a needle bar for driving the support in a first direction, the support and needle bar being movable relative to each other in a second and transverse direction, whereby such transverse relative movement causes the needle bar either to engage the support for driving the needle to effect stitching, or to disengage from the support to interrupt stitching. In a zig zag sewing machine the normal presser foot is replaced by a composite presser foot comprising a vertical cylinder 10 secured by a lug 11 to the presser bar 7 and carrying a lug 12 rigid with a presser foot pole 13. The needle 18 is carried by a holder 17 having a lateral extension 16 slidable in cylinder 10 through a vertical slot 4 therein, and biased upwardly by a spring 5 mounted within cylinder 10. The arrangement is such that the needle ibar 6 in a right hand position avoids holder 17 during its downward movement, while in a left hand position the needle bar when moving downwards engages holder 17 to actuate the needle for forming a stitch. The frequency of such engagement, and hence the stitch length, iscontrolled by cam means. It is stated that a straight-stitching machine may be provided with means for transversely shifting the special presser foot so as to intermittently position the needle in alignment with the path of the needle bar.
Patent GB-222280-A (GB)
Title: Improvements in signs
IPC: G09F7/12
Filed: 1923-08-17
Abstract: 222,280. Winter, H. M. Aug. 17, 1923. Loose-letter and like signs and notice boards are provided on their adjacent surfaces with a layer of textile fabric having a pile surface. Reference has been directed by the Comptroller to Specification 5859/95.
Patent GB-1102717-A (GB)
Title: Tire building apparatus
IPC: B29C67/00
Filed: 1965-05-18
Abstract: 1,102,717. Tyre building machines. B. F. GOODRICH. 18 May, 1965 [19 May, 1964], No. 21021/65. Heading B7C. A carrier 10 for a breaker including metal cords or filaments comprises arms 20 pivotally mounted around the circumference of a ring (15, 16) (Fig. 4, not shown) and each bearing adjacent one end a magnetic plate 22 and at the other end a pulley 27. When a yoke 31 carrying two pulleys 32 is urged by an hydraulic piston and cylinder 29 on to an endless belt 28 passed round all the pulleys 27, the arms are pivoted as at 19 to release a breaker deposited by the carrier on to a tyre carcass. The ring (15, 16) is itself rotatably mounted within an annular support 12. The arms are radially adjustable to accommodate various breaker sizes. Recesses 23 in the arms facilitate centring of the breaker.
Patent GB-1056570-A (GB)
Title: Method for doping silicon wafers
IPC: H01L21/22
Filed: 1964-05-21
Abstract: 1,056,570. Boron doped silicon wafer. C.S.F. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 21, 1964 [May 28, 1963], No. 21121/64. Heading H1K. A silicon wafer is doped with boron by heating a mixture of molten B 2 O 3  and silicon and heating said wafer in the presence of said mixture to a predetermined temperature; 70 parts commercial B 2 O 3 and 30 parts powdered P-type Si having 10<SP>14</SP> to 10<SP>15</SP> B atoms/c.c. are heated together for 1 hour at 900‹ C. in an alumina crucible in a furnace. The silicon removes harmful impurities, e.g. Cu and water vapour from the B 2 O 3 . The silicon wafers are then introduced into the furnace, and doped at 900‹ C. The mixture is renewed after certain intervals so as to maintain the desired level of doping. Planar transistors may be made using this technique.
Patent GB-801883-A (GB)
Title: Improvements in or relating to the treatment of slags
Inventor: ARCHIBALD WILLIAM ANDERSON
IPC: C04B5/06
Filed: 1955-07-21
Abstract: Molten slag is subjected to external oxidizing conditions causing internal oxidation at a viscosity selected according to the required porosity.  For a dense product the slag is maintained sufficiently fluid for such time that all the gas generated can escape; whilst for a porous product, the fluidity is lowered sufficiently to prevent gas generated escaping, the degree of porosity being dependent upon the fluidity, i.e., the amount of gas which is retained in the slag.  The term "slag" is defined as being any oxide system containing a mixture of oxides, such as lime, magnesia, alumina and silica, which are stable at elevated temperatures, together with at least a small amount of oxygen carrier such as iron and/or manganese, and/or ferrous and/or manganous and/or ferric and/or manganic, and sulphur compounds such as sulphides.  Examples include lavas and clays. Specification 344,309 is referred to.
Patent GB-758581-A (GB)
Title: Improvements in or relating to devices for x-ray examination comprising an image intensifier and a cinematographic recording camera
IPC: H01J31/50
Filed: 1954-07-20
Abstract: 758,581. X-ray kinematograph apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 20, 1954 [July 20, 1953], No. 21199/54. Classes 97 (1) and 98 (1). A kinematograph camera having an optical system including a concave mirror is combined with an image intensifier, and a preferably flat mirror is located in the path of the rays. from the fluorescent screen of the image intensifier to the concave mirror of the camera at an angle to the axis of the light beam, whereby the fluorescent screen may be observed from one side by means of a viewing instrument. As shown, the kinematograph camera has an optical system comprising a concave mirror 16 and a'correction plate 17. The image is formed at a gate in a casing 19 containing the film 22. Part of the image-forming beam is reflected by a mirror 9 into a viewfinder tube 10. The apparatus may be used for episcopic projection by rotating mirror 9 through a right-angle to its dotted-line position. The film, which is held over a reflecting surface 23, is illuminated through a hole 24 in mirror 16 by a lamp 25, and an image is projected by mirrors 16, 9 and the lenses in tube 10 on to a screen outside the apparatus.
Patent GB-1303386-A (GB)
IPC: H01H13/52
Filed: 1971-04-19
Abstract: 1303386 Push-button switches R SCHADOW 19 April 1971 [6 May 1970] 21215/71 Heading H1N A push-button slide switch comprises a housing 1, containing a plurality of contacts 4-4<SP>1</SP> and having a front opening with a projecting portion 9, and an actuating plunger 7 slidable in said housing and arranged to engage a helical return spring 12 which is enclosed by said plunger 7 and said portion 9. As shown, a slide 5 carrying yielding contacts 6 is guided by a rib 14 and coupled to the plunger 7 by a member 26 and a spring 28. The portion 9 has a channel 10 of semicircular, rectangular or trapezoidal cross-section to receive the return spring 12 and plunger 7 has a mating channel (11, Fig. 2A, not shown) whereby spring 12 is enclosed. A member 19 has legs 20 for cooperation with shoulders 22 to retain the plunger 7 in the assembled condition and define its rest position. The spring 28 allows overtravel of plunger 7 after actuation of slide 5, but may be omitted, in which case the lost motion before plunger 7 moves slide 5 may be used for known latching or interlock arrangements. The slide 5 may be provided with two notches (32, Figs. 3 and 4, not shown) for cooperation with a leaf-spring detent (33) inside housing 1 to provide defined switching positions.
Patent GB-655645-A (GB)
Title: Improvements in or relating to variable inductance devices for tuning high frequencycircuits
IPC: H01F21/06
Filed: 1948-08-12
Abstract: 655,645. Inductances. STACKPOLE CARBON CO. Aug. 12, 1948, No. 21290. Convention date, Aug. 29, 1947. [Class 38 (ii)] A device for tuning a high frequency circuit comprises an elongated powdered iron core 8 provided with a lengthwise extending radial slot 9 and an electrically conducting member having one portion 2 extending lengthwise in the slot and another portion 1 extending along the outside of the core, the core members and the conducting member being relatively movable to vary the inductance of the device. In the embodiment shown the part of the conducting member extending along the outside of the core comprises a tubular metal case, one end of the other part of the conductor member being in metallic contact with the closed end of the case the relative movement between the core and the conducting member taking place in a lengthwise direction. The out-turned portion of this part 2 of the conducting member passes through a hole 3 in the case 1 and the parts 1, 2 are provided with terminals 4, 6 respectively for connection to the high frequency circuit. The conducting member may alternatively comprise two concentric cylinders in which case the core will have an annular cross section. In other embodiments the conducting member may be a plain U-shaped loop of wire or metal, either or both legs being associated with a. core member. Alternatively, it may comprise a rectangularly shaped coil having a small number of turns, e.g. 2. In these cases the movement of the core may be either longitudinally, radially, or axially or a combination of these.
Patent GB-391448-A (GB)
Title: Improvements in or relating to friction transmission
IPC: F16H15/52
Filed: 1931-07-27
Abstract: 391,448. Variable-speed friction gearing. HAYES, F. A., Middletown, New Jersey, U.S.A. July 27, 1931, No. 21413. Convention date, Aug. 2, 1930. [Class 80 (ii).] In variable-speed gearing comprising twin trains with friction rollers 17, 18, Fig. 1, connecting pairs of toric discs 11, 22 and 12, 23, such as is described in Specification 254,341, [Class 80 (ii), Gearing, Variablespeed &c.], means are provided for producing frictional engaging pressure proportional to the load without inducing any relative turning of the discs. The relative turning which produces the proportional pressure is between the two discs 22, 23, which are splined together at 25 to prevent relative turning, and a third member or wheel 33. In the arrangement shown, the discs 11, 12 are fast on a shaft 10 connected at 27 to the engine and prevented from separating by a nut 50. The driven element of the gearing is a spider 16 supporting the rollers 18 which is connected to the spider 15 of the other train by a quill 13. The wheel 33 is stopped or restrained to engage the drive. Initial frictional pressure is effected by compression springs 31, one on each side of a web 32 supporting the wheel 33. Between the wheel 33 and the disc 22 is a ball thrust bearing 39. Between the wheel 33 and the disc 23 is the device for producing the proportional pressure. This consists of balls 36 confined in pockets and coacting with inclines 34, Fig. 2, on the wheel 33 and inclines 35 on the disc 23. The travel of the balls 36 may be limited by pins 37. The pressure device may lie between two parts of the same disc.
Patent GB-776285-A (GB)
Title: Improvements relating to the continuous casting of metals
Inventor: HUGHES THOMAS HUBERT CROWTHER
IPC: B22D11/053
Filed: 1954-07-22
Abstract: 776,285. Continuous-casting machines. LOW MOOR ALLOY STEELWORKS, Ltd. July 15, 1955 [July 22, 1954], No. 21417/54. Class 83 (1). A continuous-casing mould 1 is so mounted that it can move longitudinally, fluid-pressureoperated means being provided to resist movement of the mould in the direction of withdrawal of the casting or to return the mould in the reverse direction after any such movement. Reference has been directed by the Comptroller to Specification 715,282.
Patent GB-1179324-A (GB)
Title: An improved process for the manufacture of Carbon Textiles
IPC: D01F9/16
Filed: 1967-05-09
Abstract: 1,179,324. Carbon textiles. UNION CARBIDE CORP. 9 May, 1967 [10 May, 1966], No. 21472/67. Heading C1A. A carbon textile is produced by heating a cellulosic textile at ambient temperature to 400‹ C. whilst subjecting the textile to the action of the vapour of at least one dehydrating agent selected from PCl5, PBr3, NH4Cl, NH4Br, PCl3, POCl3, SOCl2 and pyrridinium chloride, and then heating in an inert atmosphere to above 700‹ C. to cause carbonization. Cellulose, e.g. rayon, regenerated cellulose, may be used in any textile form, e.g. felt, cloth, tow, yarn. The dehydrating agent is introduced, either directly as a gas or indirectly by vaporizing a solid or liquid, into the pyrolysis zone to react at a partial vapour pressure preferably below 200 torr. Carrier gases may be used, particularly in the case of indirect introduction. After reaction the system may be purged with inert gas. After the carbonization, further heating to 2000-2500‹ C. or higher may be used to form a graphite textile.
Patent GB-830883-A (GB)
Title: Siphonic device
IPC: B67D7/00
Filed: 1958-07-04
Abstract: 830,883. Siphons. WOLPIANSKI, B., WECHSLER, S., and HAVKIN, H. July 4, 1958 [July 22, 1957]. No. 21512/58. Class 69 (1). A siphonic device comprises a tube bent into U-shape with its two legs of unequal length, the shorter leg 1 being made rigid by a stiff wire 4 and the longer leg 3 being flexible, the bow 2 being either rigid or flexible, an additional flexible tube 9 extending parallel to the longer leg, being in communication with the latter at 10 near their lower ends, the additional tube being otherwise closed and extending with its upper end substantially up the bow of the U, said upper end communicating with a elastic bulb 11 or the like, a closable vent 6 being provided at the bow of the U. A rigid disc 5 is slidable on the leg 1 with sufficient friction that it can be fixed at any desired height so that liquid may be withdrawn from a vessel down to any predetermined level. The longer leg 3 of the siphon may be closed by a stopper 12 (Fig. 1). Alternatively, as shown in Fig. 2, a stopper 22 is provided on a sleeve 23 having two longitudinal cut-outs 24 through which the stopper 22 is visible. A knurled ring 25 reinforces the upper edge of the sleeve 23. A boss 28 on the leg 3 co-operates with a bayonet-catch 27 formed at the end of a longitudinal slot 26 in the sleeve 23. To open the lower end of the pipe 3 the sleeve 23 is slightly turned and slid downwardly by gripping and moving the knurled ring 25. The sleeve 23 is prevented from falling off by boss 28 abutting against ring 25.
Patent GB-1601728-A (GB)
Title: Character print wheel with drive elements
IPC: B41J1/30
Filed: 1978-05-23
Abstract: A daisywheel (12), bearing the types (18) on its outer circumference, of an impact printer, such as a typewriter, is fixed directly on the rotor (28) of a high-speed rotary stepping motor (26). The rotor (28) is characterised by a high power-to-mass ratio and has a number of magnetic drive elements (40) which are arranged spaced apart on its circumference and are recessed into the rotor hub (43) which also bears the daisywheel (12). According to one embodiment, the stator of the rotary stepping motor (26) forms an axial air gap (40) between the active stator part (30) and the inactive stator part (32), the rotor (28) and the daisywheel (12) being held releasably in the air gap (80). <IMAGE>
Patent GB-614666-A (GB)
Title: Metronome
IPC: G04F5/02
Filed: 1946-07-19
Abstract: 614,666. Metronomes. TURNER, P. J. A. July 19, 1946, No. 21581. [Class 88 (ii)] A metronome comprises a pendulum 1 attached to a fixed support 3 by means of a spring metal plate 2, a part 6 of which remote from the edges thereof is stretched so that it is initially flexed slightly away from the plane of the plate. In use, the pendulum is maintained in vibration by known means, causing the plate 2 to flex alternately to each side of a mean position. As the pendulum 1 moves to the side to which the stretched part 6 is flexed, a point is reached when the part 6 is subject to an endwise compression sufficient to cause it to suddenly flex over to the opposite side, making a sharp sound as it does so. The stretched part 6 may be formed by two slots 5 of equal length or by a dimple pressed in the plate 2.
Patent GB-1435564-A (GB)
Title: Partial esters of polyglycerols
IPC: A61K8/00
Filed: 1973-05-07
Abstract: 1435564 Lipstock compositions UNILEVEREMERYNV 7 May 1973 [8 May 1972] 21633/73 Heading C5W [Also in Division C2] Lipstock compositions comprise a wax phase, an oil phase and a colouring agent in which the oil phase consists of from 5-60% by weight of a partial glycerol ester of 2-8 glycerol units and a branched chain monocarboxylic acid (12-22 carbon atoms) with at least two but not more than 60% of the hydroxyl groups esterified (see Division C2). A composition with 2-20% by weight colouring agent, 80-98% of a base with oil and wax phases with up to 70% of the base being the polyglycerol partial ester. Many known colouring agents, optional flavours and perfumes, together with conventional oil and wax ingredients are listed. Examples describe lipsticks prepared from triglycerol diisostearate, tetrabromofluorescein and aluminium lake reds, and a wax melt of carnauba and candellila waxes, lanolin, petrolatum stearic acid and isopropyl myristate; triglycerol diisostearate, beeswax and red dye; and a wax phase comprising synthetic beeswax, lanolin, red dye and glycerol monostearate with an oil phase, triglycerol diisostearate and red dye.