baber/WOPTO huggingface dataset:
Patent GB-645338-A (GB)
Title: Improvements in and relating to electronic circuits for controlling the power supplies to an electrical load
IPC: H02J3/08
Filed: 1946-11-04
Abstract: 645,338. Electronic control of consumption apparatus. GENERAL ANILINE & FILM CORPORATION. Nov. 4, 1946, No. 32746. Convention date, Oct. 4, 1945. [Class 38 (iv)] The current in a load 3 supplied from an A.C. source 14 through a grid controlled gas discharge device 1 is controlled by a multigrid hand valve 7 which constitutes a variable resistance element of a phase shifting circuit 7, C 2 , governing the relative phase of the grid and anode voltages applied to the discharge device. One or more of the grids of valve 7 are connected with one or more alternating voltage sources, whilst a resonant circuit is electrically coupled to the source or sources by another grid, so that the resistance of valve 7 may be controlled by varying either the frequency of the alternating voltage source or sources, or the tuning of the resonant circuit. As shown in Fig. 1, the valve 7 is of the pentagrid type and is supplied on grids 9, 18 with voltages of different frequency by sources 2, 22. Grid 11 is coupled to an oscillatory circuit L1, C1, tunable through a beat frequency of the sources 2, 22. In modified arrangements using a tetrode or pentode for valve 7 the resonant circuit is connected to the screen grid and a single alternating control voltage, which may be generated by the valve itself, is impressed on the control grid. The Specification as open to inspection under Sect. 91 describes also an arrangement in which the valve 7 is a triode, the grid circuit of which includes a resonant circuit to which the voltage from the alternating current control source is applied. This subject-matter does not appear in the Specification as accepted.
Patent GB-810766-A (GB)
Title: Improvements relating to windscreen washing apparatus
Inventor: GAMMON ROBERT GORDON
IPC: F04B43/00
Filed: 1957-10-21
Abstract: 810,766. Reciprocating pumps. TUDOR ACCESSORIES Ltd. Oct. 21, 1957, No. 32806/57. Class 102(1). [Also in Group XXV] A pump 1 is secured to a dashboard 22 with the operating knob 14 projecting through a hole therein ; by means of cups 19, 24 having flanges 21, 26 which engage the opposite sides of the dashboard and having holes 20, 25 surrounding a screwed sleeve 16 having nuts 17, 18 for drawing the cups together. Specification 802,109 is referred to.
Patent GB-423754-A (GB)
Title: An improved window fastener
IPC: E05F11/00
Filed: 1933-11-24
Abstract: 423,754. Window fasteners. HARRINGTON, S., 32, Broadbank, Louth, Lincolnshire. Nov. 24, 1933, No. 32860. [Class 44] A plate N is hinged to the plate A secured to the upper sash X and has a curved end M with a countersunk hole L. A spiral spring I on the hinge pin tends to hold the plate N back against the stud D. A plate U with a raised edge C is secured to the top of the bottom sash Y and has a swinging clamp bridge E with a fastening screw K. When the sashes are closed, the plate N is pressed down on the plate U and the edge C acts as a fulcrum to assist in bringing the sashes close together. The bridge E is then swung over the plate N and the screw K is moved down into the hole L.
Patent GB-341578-A (GB)
Title: Improvements in or relating to mercury vapour electric rectifiers
IPC: H01J13/20
Filed: 1929-10-30
Abstract: 341,578. Mercury-vapour rectifiers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., of General Electric Co., Witton, Birmingham. Oct. 30, 1929, No. 32911. [Class 39 (i).] In mercury-vapour rectifiers with several anodes, hot spots at or near the inner edge 3, Fig. 2, of an anode 1 are prevented by means within the anode shield 2 deflecting the arc so that its direction of flow towards the anode shall have an outward component near the working face of the anode. The deflectors may comprise vanes 6 of thin metal sheet or silica immediately below the anode 1 and inclined outwardly. The vanes may be carried by the anode shield 2 or by a sleeve 5 carried by radial insulating strips. The sleeve 5 may be of less diameter than the shield 2 and of greater diameter than the anode 1 and may extend above the vanes 6, its upper edge being near or above the working face of the anode. In modifications, a single deflecting plate is provided and extends from the inner side of the anode shield as at 4, Fig. 3, or comprises a single-turn helix 41, Fig. 4, with the upper end 61 beneath the inner side of the anode and with the outer edge of the strip near or touching the anode shield. The Provisional Specification describes also the outward deflection of the arc by the field of an electromagnet or of conductors which carry the anode currents and which are parallel to the anode shield.
Patent GB-1510198-A (GB)
Title: Tubular core for forming holes in concrete
IPC: E04G15/06
Filed: 1975-08-06
Abstract: 1510198 Forming holes in cast concrete CATO INC 6 Aug 1975 32940/75 Heading E1S A tubular core 10 of, e.g. polyethylene, of tapered form and with longitudinal ribs e.g. 24 on its outer face, is employed to form holes in cast concrete objects. The taper is preferably about 3‹, allowing stacking of a number of cores. The core may be made effectively shorter by cutting it transversely and telescoping one section within the other, as in Fig. 5, with the ribs on the inner section contacting the wall of the outer section, as in Fig. 7. The ribs are preferably hollow to allow stacking (see Fig. 8), the internal groove angle preferably being about 40‹, compared with the 30‹ rib apex angle. The ribs could alternatively be rectangular, or the wall could be scalloped in plan.
Patent GB-392244-A (GB)
Title: Improved construction of pad former and holder for cleaning and polishing cloths
IPC: A47L13/29
Filed: 1931-11-30
Abstract: 392,244. Pads &c. PHIPPS, W. H., 12, Waverley Road, Redland, and FRY. G. I., 19, Oakfield Road, Clifton, both in Bristol. Nov. 30, 1931, No. 33081. [Class 19.] A holder for cleaning and polishing cloths for floors &c. comprises a block A of wood or other suitable material with a stationary bar B, preferably of metal, on its upper surface at one end, and a spring clip D at the other. A cloth C is threaded under the bar B and one end is held under the lower face of the block as shown, while the other is passed round the block to be clipped at the other end. The block A may have a felt layer F.
Patent GB-604869-A (GB)
Title: Improved voltage regulator system
IPC: H02P9/20
Filed: 1945-12-07
Abstract: 604,869. Automatic control systems for generators. GENERAL MOTORS CORPORATION. Dec. 7, 1945, No. 33094. Convention date, Dec. 9, 1944. [Class 38 (iv)] In a variable-speed-generator voltage-regulator the generator field winding is connected in parallel with a controller and in series with a conventional carbon pile, the -voltage across which energizes the controller solenoid. In the embodiment shown the shunt field 23 of generator 20, is in series with carbon pile 31 of regulator 30 urged to the low resistance position by the spring 36. The control coil 32, in association with core 33, armature 34 and rod 35 opposes spring 36. Carbon-pile 41 of regulator 40 is in parallel with field 23 and is urged to the high resistance position by spring 46 and co-operating stop 41c, the rod 45 passing through the annular discs of pile 41 and being attached to movable terminal 41b. Rod 45 also carries armature 44 which, in association with core 43 and coil 42 acts in opposition to spring 46. Coil 42 is connected across carbon pile 31 and functions to reduce the compression changes necessary in pile 31 to effect the required voltage regulation. A.C. voltages developed across field 23, consequent upon shunting, are applied to the primary 51 of transformer 50, the secondary 52 of which energizes the windings 47, 37 of regulators 40, 30 respectively. The core 54 of transformer 50 is provided with gap 55 to prevent saturation due to D.C. in winding 51. Rectifier 60 restricts the flow of A.C. current to winding 51.
Patent GB-795185-A (GB)
Title: Method of producing organo-silicon hydride compounds
IPC: C06B43/00
Filed: 1956-10-30
Abstract: Hydrogen-containing silanes are prepared by reacting compounds of the formula RxSiHaly or SinR(2n + 2)On-1 in which R is alkyl, aryl or aralkyl, Hal is F, Cl, Br or I, x = 1, 2 or 3 and x + y = 4, and n is at least 2, with hydrogen in the presence of alkali metals or with alkali metal hydrides.  Temperatures of about 50 DEG  to 400 DEG  C. and pressures of 1 to 350 atmospheres or more may be used, and solvents, diluents or dispersing agents may be present, e.g. hexane, cyclohexane, octane, benzene and paraffin oil.  In the examples: (1) triethylfluorosilane is reacted with hydrogen in the presence of sodium at 130 atmospheres and 300 DEG  C. to yield triethylsilane; (2) diethylsilane is prepared from diethylfluorosilane with and without octane as solvent, and the product containing a minor proportion of fluoro compound is further reacted in the same way; (3) trimethylsilane is obtained from trimethylchlorosilane with and without octane as solvent; triphenylsilane is similarly obtained; (4) trimethylsilane is prepared from hexamethyldisiloxane; (5) diethylsilane is prepared from diethyldifluorosilane, using sodium hydride; (16) a diethylsilicone oil is reacted with sodium and hydrogen, yielding diethylsilane together with ethane and ethylene.
Patent GB-470154-A (GB)
Title: Improvements in or relating to the treatment of titanium-bearing materials
IPC: C22B34/12
Filed: 1936-12-03
Abstract: In the production of a water-soluble product by thermal reaction between sulphuric acid and a titanium-bearing material, the reaction is carried out in the presence of a small amount of crystalline sulphate of titanium, which may be hydrated or anhydrous titanyl sulphate or the product of a previous operation. About 0,5 to 10 per cent by weight of sulphate relative to the TiO<2> content of the titanium-bearing material may be used, and the reaction mass be maintained in an agitated condition to the end of the reaction by the injection of air or other gases as described in Specification 288,569, [Class 1 (iii)].  Materials which may be treated include ilmenite, rutile, artificially prepared hydrated or dehydrated titanium dioxode, and rutile treated as described in Specification 408,215 to obtain an alkali metal titanate of the formula M2Ti5O11.
Patent GB-193557-A (GB)
Title: Improvements in handles for pots, pans, and other similar articles
IPC: A47J45/06
Filed: 1921-12-10
Abstract: 193,557. Noirit, A. Dec. 10, 1921. Handles.-The handles of pots, pans, &c. are secured to separate attachment members, either by being split at the end and inserted over a wedge-shaped lug 3, Fig. 2, on the member or expanded within the member by the insertion of a separate tapered wedge members 8, Fig. 7. The outer ends of the handles are flattened and formed into oval shape.
Patent GB-1449760-A (GB)
Title: Method of recovering thermal energy in a gas production process
IPC: C10B39/02
Filed: 1974-07-26
Abstract: 1449760 Dry cooling coke; preheating WAAGNER-BIRO AG 26 July 1974 [6 Aug 1973 14 Aug 1973] 33236/74 Headings F4B and F4G In a gas production process heat for drying and/or preheating the coal charge is recovered by cooling the coke produced in a closed primary inert gas circuit, utilising this primary gas circuit to heat a secondary circuit and utilising the inert gas in the second circuit to dry and preheat the coal, dust being separated from both gas circuits. As shown, a coke dry quenching chamber 2 has a primary inert gas circuit including a dust separator 6, heat exchanger 7, dust separator 8 and blower 5. The secondary inert gas circuit includes a heating element 11 in heat exchanger 7 supplied with gas through pipes 9 and 10 controlled by valve 40, a preheater 12, cyclone 13, drier 14, cyclone 15, blower 16, dust separator 17, return pipe 19 with valve 39 and waste pipe 18 with valve 38. By closing valves 38 and 40 and opening valve 39 a closed circuit is obtained and by closing valve 39 and opening valves 38 and 40 an open circuit is obtained. A further heating element 23 in the heat exchanger 7 produces hot gas used to generate steam or for another utility. Preheated coal collects in a chamber 22 and dried coal is fed by line 21 to the preheater. Fine coke and coal dust is collected in a mixer 41 which feeds it to chamber 22 with the addition of a binder. In a modification (Fig. 2) the drier 26 incorporates a fluidised bed and another modification (Fig. 3) has both drier and preheater operating on the fluidised bed principle. A final modification (Fig. 4) has the secondary inert gas circuit passing through a coke oven regenerator. The inert gas may be nitrogen.
Patent GB-772415-A (GB)
Title: Improvements in indicator instruments
IPC: G01P1/08
Filed: 1955-11-21
Abstract: 772,415. Indicating instruments. GENERAL MOTORS CORPORATION. Nov. 21, 1955 [Dec. 1, 1954], No. 33246/55. Class:106 (4). An indicator instrument, e.g. a speedometer, comprises a casing 10 with a window 24, two relatively rotatable and parallel members 42, 76, each member having a vivid portion 62, 84 and a contrasting opaque portion 42a, 88 respectively, the member 76 being interposed between the window- 24 and the member 62 and having a window portion 82 so that on relative rotation of the members, e.g. with the member 76 coupled to the hub 70 of the speedometer shaft 18 a continuous vivid region is progressively presented to view extending over 180 degrees during the higher range of instrument reading. At zero speed, the vivid zone 84 of the member 76 is hidden behind a fixed mask 40, and the vivid zone 62 of the member 42 is masked by the opaque portion 88 of the member 76. As the speed increases rotation of the member 76 brings progressively more of the vivid region 84 into view from behind the mask 40, the leading edge 100 of this region indicating the speed against a scale engraved on the bezel 30 of a scale plate 28. When the total arcuate length of this region 84 is exposed it is continued at its lower end by the progressive unmasking of the similarly coloured vivid region 62 of the fixed member 42 by the progressive movement of the window portion 82 of the moving member 76. The member 76 may be a transparent disc bearing the vivid and opaque markings. The normal odometer and " trip " indications may be viewed through apertures 46, 48. The window 24 is provided with a retaining ring 20 and gasket 22. In addition to the graduations on its bezel 30, the scale 28 bears numerical indicia on its front face.
Patent GB-366537-A (GB)
Title: Improvements relating to control mechanism for adjusting the ignition timing and operated by the suction of internal combustion engines
IPC: F02P5/00
Filed: 1930-11-05
Abstract: 366,537. Timing ignition. KENNING- TON, W. O. and DELCO-REMY & HYATT, Ltd., 111, Grosvenor Road, London. Nov. 5, 1930, No. 33256. [Class 7 (iv).] In control mechanism actuated by the engine suction for adjusting the ignition timing, the suction apparatus is connected to the device to be controlled through a floating lever, which is also connected to manual or pedal actuated means, so that either control may be effected independently of the other. Fig. 2 shows suction apparatus h connected to one end of a floating lever e, which is connected at its other end to a manual control f, and intermediately to the timing-lever a of the ignition device. The bellows h is connected by a pipe j to a point in the induction pipe which is on the carburetter side of the throttle when this is closed, so that the-ignition is retarded during idling. A rod p connected to one end of the bellows slides in a sleeve q connected to the other end, which is anchored by a ball joint h<1>.
Patent GB-306641-A (GB)
Title: Improvements relating to puncture-sealing compositions for pneumatic tyres
IPC: C09K3/10
Filed: 1927-12-09
Abstract: 306,641. Strange, J. A. Dec. 9, 1927. Plastic compositions containing hair, mica, and gelatine.-A puncture-sealing composition consists of cork or leather dust, mica, gelatine, formaldehyde, hair, particularly pig's hair, and optionally gum.
Patent GB-366972-A (GB)
Title: Improvements in photographic cameras
IPC: G03B17/44
Filed: 1930-11-06
Abstract: 366,972. Photographic cameras. PARRY, W. H., Ty Newydd, Castle Street, Caernarvon. Nov. 6, 1930, No. 33419. [Class 98 (i).] A camera has a focusing- screen adjacent the space to be occupied by the sensitive surface and substantially in the plane thereof, a cover, additional to the exposure shutter, being provided for covering the screen during exposure. As shown in Fig. 1, the screen c is adjacent the sensitive surface b and is provided with a sliding cover e biased by a spring to the position in which it covers the screen c. In the box camera shown in Fig. 2, the screen c is arranged at a slight angle to the plane of the sensitive surface f and may be covered by a pivoted cover e operated by an external knob. The screen may have a folding shade which serves as the cover. A lens may be provided for viewing the image on the screen.
Patent GB-1442428-A (GB)
Title: Di-electric reflector for electric waves and life-saving outfit  equipped with the same
IPC: H01Q15/23
Filed: 1973-07-13
Abstract: 1442428 Lifeboats; lifejackets TOKYO KEIKI KK 13 July 1973 [13 July 1972 (2)] 33481/73 Headings B7A and B7U [Also in Divisions H3-H5] A radio wave reflector U, Fig. 1, comprises a spherical dielectric lens 1, which may be of Luneberg or other type, and which has on its surface an annular reflector 2 and a dish-shaped reflector 3, made of conductive material. The median plane of the annular reflector and the axis of the dish-shaped reflector pass through the centre of the lens, and are perpendicular to each other. A support 5 may be provided for attachment of the reflector to, for example, a lifeboat, and a protective coating 4 of dielectric material may be added. With the axis of the dish-shaped reflector 3 vertical, the reflector is effective for signals from all horizontal directions as well as for those from a generally vertical direction (e.g. signals from rescue ships and aircraft). In another embodiment, Fig. 2 (not shown), the median plane of the annular reflector intersects the axis of the dishshaped reflector at a point displaced from the centre of the lens. A lifejacket 11, Fig. 3, has a body 12, cords 13, and floats 14 of foamed polystyrene or the like, in each of which is disposed a reflector U of the kind described. A lifeboat 23, Fig. 4, comprises a bottom sheet 22 and a circular float portion 21, in which reflectors U are disposed. It is stated that a life raft, a life buoy and other life-saving outfits may also be provided with the reflectors.
Patent GB-650339-A (GB)
Title: Improvements in and relating to building
IPC: E04B2/42
Filed: 1948-12-30
Abstract: 650,339. Buildings. BLACKBURN (DUMBARTON), Ltd., and HARGREAVES, W. A. Dec. 30, 1948, No. 33500. [Class 20(iv)] In a two storey building having a cavity external wall, the ground floor has a cavity brick wall 1, 2, and the outer run of the bricks is continued up to the eaves with the inner wall of the upper floor composed of factory built panels 8 which are secured adjacent to but spaced from the outer run of bricks. The panels are of cavity construction, the inner face 10 comprising plaster board or the like and the inner face 11 comprising a fibre glass quilt. The cavity may be filled with slag wool, foam cement. &c. The inner run of bricks on the ground floor may be faced with wall boards 17 spaced therefrom so as to form double cavity walls. The roof 4 and floor 5 may comprise factory built units supported as in Specifications 644,278 and 644,255 respectively.
Patent GB-460808-A (GB)
Title: Improvements in coin-operated vending machines
IPC: G07F5/02
Filed: 1935-12-04
Abstract: 460,808. Coin-freed article-delivery apparatus. WITTENBORG, E. Dec. 4, 1935, No. 33638. [Class 27] Coin action, with stationary coin forming abutment, and multiple coin ; coin-discharging mechanism.-In a coin-freed article-delivery apparatus, a slidable controlling rod 1, connected with the doors, drawers, &c. of a number of receptacles in which the articles are stored, carries a spring-actuated pivoted pawl 4 which, in the absence of a coin, engages fixed stops 6, 7 to prevent longitudinal movement of the rod 1 and opening of a door &c. In the apparatus shown, two coins 15 are required to free the apparatus : they are received side by side in a vertical pocket 10, and as the rod 1 is moved by the opening of a door or drawer, a roller 8, carried by a link 9 pivoted to the pawl 4, abuts against the edge of the nearest coin so moving the pawl back to clear the stops 6, 7 and permit full movement of the rod 1 and door &c. An arm 12 on the rod 1 engages an abutment 13 on a pivoted wall 11 of the coin pocket to discharge the coins towards the completion of movement of the rod 1.
Patent GB-211994-A (GB)
Title: Method of and apparatus for making screen plates for color photography
IPC: G03C7/12
Filed: 1922-12-11
Abstract: 211,994. Powrie, J. H. Dec. 11, 1922. Soreen plates or films for colour photography are photographically produced by using a masterplate to print one element of the design and a registering patch on the sensitized plate, and then, by means of the registering patches, registering the printed plate by eye with the masterplate for printing the second element of the design, and printing when they are in the registered position. The elements of the registering patch may be alternately transparent and opaque and may be similar to, but differing in proportion from, the elements of the design. In one form, in which a tricolour lined screen is to be produced. the master-plate 1, Fig. 1, is formed, preferably photographically, with parallel alternating opaque bands 3 and transparent bands 2, half the width of the latter, for producing the design, and two opposite margins 4, 5 have parallel opaque and transparent bands 6, 7, 9, 10, which, at the sides, are the same width as the bands 2 and at the centre are one-third said width, these bands forming the registering patches 8. The screen-plate 12, Fig. 2, sensitized, for example with bichromated gelatine, is placed on the master-plate, exposed, and the insoluble banded image 11 obtained dyed, say green. The plate is again sensitized and its green registering patches 13 registered with the registering patches 8 of the master plate 1, as shown in Fig. 3, so that on exposure a handed image is obtained in exact juxtaposition with the green image 11. This image is dyed, say red. The third set of colour bands is obtained by re-sensitizing, exposing without the master plate, and blue By varying the relative proportions of the margin bands and the main bands of the master-plate, various screen arrangements may be produced: thus the blue lines may be split and printed, half on each side of the green. Colour screens in whch the pattern is any recurring arrangement of lines, dots, or figures can be produced by this method.