baber/WOPTO huggingface dataset:
Patent GB-1208508-A (GB)
Title: Incandescent-fluorescent lamp
Inventor: PEEK SANDFORD CHRISTOPHER JR
IPC: H05B41/04
Filed: 1968-07-03
Abstract: 1,208,508. Fluorescent discharge lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 3 July, 1968 [3 July, 1967], No. 31731/68. Heading H1D. A fluorescent lamp comprises an envelope 1 containing a gas filling and a vaporizable material and having a phosphor coating 3 and two spaced sets of filaments, each set containing a cathode filament 8, 9 coated with electron-emitting material and an incandescent filament 10, 11. The supply circuit is as described in Specification 1,208,509 (see Division H2). The lamp is suitable for use in low temperature conditions, e.g. in an automobile at starting in winter, when the vapour pressure in the lamp is too low for the discharge established between the cathodes 9 and 10 by the oscillator 13 to excite the phosphor coating 3 efficiently. During this period adequate illumination is provided by the filaments 10 and 11 heated by the battery 15 and providing light which is diffused by the coating 3.
Patent GB-784997-A (GB)
Title: Improvements in or relating to the stretching and forming of metal sheet or slab
Inventor: HOLLIS WILLIAM STEPHEN
IPC: B21D11/02
Filed: 1954-11-03
Abstract: 784,997. Stretching and forming. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 31, 1955 [Nov. 3, 1954], No. 31837/54. Class 83 (4). Metal sheet of a cross-sectional area which varies progressively along a given dimension is stretch formed by clamping the sheet progressively in a direction along said dimension and stretching the sheet while so clamped so that substantially the same elongation shall take place at all points irrespective of the crosssectional area, the means whereby the clamping is effected also shaping the sheet during the action of clamping. A sheet 6 is arranged between a former block 2 and a second block 5. The end of the sheet having the larger crosssection is clamped to a ram 8 and the end having the smaller cross-section to a ram 7 and, with the sheet free between the blocks 2, 5, the ram 8 applies a tension to the sheet to stretch it at its smaller end. Linked hydraulic jacks 9 are then inserted beneath the block 5 and are actuated to clamp the sheet and bend it over the block 2. The tension applied by the ram 8 is then increased to stretch that part of the sheet in front of the clamped part. The tension is then eased and the jacks 9, which are arranged within a cage 20 slidable on bars 22, are moved to clamp and shape the part of the sheet just stretched. The sheet in front of this is then stretched and so on. The jacks 9 may comprise rubber-headed pistons at each end of a cylinder, or the pistons may have spring-loaded ball-jointed metal heads, or the pistons may be completely of rubber with inner faces recessed so that, under the action of pressure fluid, the pistons will tend to expand and form a substantially fluid-tight fit within the cylinder. The stretching tension may be varied automatically, e.g. in response to extensometers or strain gauges or to cam means. As the stretching tension is increased the clamping pressure may also have to be increased. Instead of one means for clamping and shaping there may be used a number of such means, one for each section of sheet stretched, coming into operation successively as the stretching tension is increased. Safety means interlocked with the stretching and clamping means may be provided to ensure proper clamping before stretching. Pressure to the stretching means and clamp may pulsate in opposite phase. The jacks may be replaced by pads or strips of resilient material or by metal blocks preferably spring urged or the second block may directly shape the sheet on the former block, the blocks moving relatively as in a press. The blocks may be replaced by shaped rollers moved along the sheet or by an elongated concave-sectioned former block on which runs a quadrant or roller of convex section. The former blocks may have progressively varying cross-sections.
Patent GB-618367-A (GB)
Title: Cementing together the surfaces of shaped carbon bodies
IPC: C04B35/52
Filed: 1946-10-28
Abstract: A method of cementing together the surface of porous, shaped refractory carbon bodies comprises interposing between the carbon surfaces a thin layer of glass, the glass being capable of wetting the carbon surfaces when in the fused condition, and having a co-efficient of thermal expansion slightly less than that of the carbon surfaces to be united, heating the glass and adjacent carbon surfaces to a temperature of at least 600 DEG C. and at which the glass has a viscosity ranging from 103 to 106 poises, and subjecting the glass at that temperature to compression between the carbon surfaces to cause the fused glass to penetrate the pores of the carbon surfaces.  The required temperature may be attained by heating the carbon bodies and intervening glass as a whole or by passing an electric current from one carbon surface to the other through the intervening glass layer.  The glass employed may be one containing boric anhydride or phosphoric anhydride, e.g. one having substantially the composition SiO2 80 per cent, B2O3 12 per cent, Al2O3 3 per cent, Na2O 4.5 per cent.  MgO, CaO and other oxides 0.5 per cent.
Patent GB-447117-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03F1/16
Filed: 1934-11-07
Abstract: 447,117. Valve amplifying circuits. RUDKIN, E. P., 145, Harlaxton Road, Grantham, Lincolnshire. Nov. 7, 1934, No. 31941. [Class 40 (v)] A reaction arrangement comprises a connection from an auxiliary grid through phaseadjusting means to the input circuit to inject current at a phase externally intermediate between the phase of the input signal and that of the current fed back through the valve inter-electrode capacities. The Figure shows a high-frequency amplifier in which feed-back is taken from the screen-grid S through phase adjusting condensers C1, C8. A differential condenser D may be provided to adjust the selectivity.
Patent GB-230566-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H19/56
Filed: 1923-12-21
Abstract: 230,566. Cox, F. B. Dec. 21, 1923. Controllers, drum. - In a multiple contact step-by-step rotary electric switch a series of sets of fixed contacts are arranged around the axis of the spindle carrying the moving contacts on bars arranged parallel with and disposed in a circle around this axis, the bars being secured to end plates carrying the switch shaft bearings so forming a cagelike structure. As shown in Figs. 1 and 2, sets of fixed contacts K are carried on bars J arranged around the switch shaft A' which carries two-part spring contacts 0 and is mounted in bearings in the end plates H. The bars J are attached to the plates H by screws entering inturned flanges, the upper bar J<1> being secured by screws j<1>, j<2> passing through the feet h<1> of the end plates. The bar A is operated in a step-bystep manner by mechanism of the type described in Specification 231,227. For controlling a resistance such as a motor starting resistance the fixed contacts are connected to resistance sections as shown in Fig. 10 in which the movable contacts are joined by a shortcircuiting bar h<3> so that successive steps of the operating shaft cut out corresponding sections of the resistance. For multi-phase circuits a corresponding number of sets of fixed contacts and of resistances are employed.
Patent GB-1431714-A (GB)
Title: Mandrels for use in the forming of hollow articles
IPC: B29C57/04
Filed: 1973-07-05
Abstract: 1431714 Grooving pipes HEPWORTH PLASTICS Ltd 5 July 1973 32099/73 Heading B5A The end 23 (Fig. 1) of a heated thermoplastics pipe 22 is enlarged and provided with a groove 24, by a mandrel comprising body parts 1A, 1B and a plurality of segments 4 that can be projected from, or withdrawn within, the outer surface of the parts 1A, 1B. Links 8 pivoted one to each segment 4 and to an axial member 7 (see Fig. 2) project or withdraw the segments when the member 7 is rotated. The segments 4, which are interconnected by tongues and grooves 18, 19, are guided for radial movement by keys 5 fitting keyways 6, and are encircled by an elastomeric band 20. Member 7 is rotated by a manually-, hydraulically-, or pneumatically-operated handle 13 which is movable between stops 16 and 17 (or link movement is limited by the edges of slots 12 in a tubular support 11). Water pipes 35, 36 carry cooling water to cavities 25, 26. The mandrel is supported by a plate 14 and is positioned between mould parts 27. The pipe is pushed over the mandrel before or after the segments 4 are projected.
Patent GB-365216-A (GB)
Title: Safety guards for motor and other vehicles
IPC: B60R21/34
Filed: 1930-10-27
Abstract: 365,216. Road vehicle safety-guards. GRIFFIN, H. C., 39, Ripley Gardens, Mortlake, London. Oct. 27, 1930, No. 32153. Addition to 320,154, [Class 103 (ii), Rail and road vehicles, Details applicable &c. to]. [Class 103 (ii).] In a vehicle safety-guard mounted on a pivot spindle B by means of cranks P or of bearings giving a similar action, so as to provide for a backward and downward movement of the guard, as described in the parent Specification, an additional supporting means, such as a chain, slotted link, or freely fitted bolt is provided in order to return the guard automatically to its normal position after being operated. The guard comprises a centre-guard J and sideguards T1. The side-guards are moved automatically in the direction of steering when cableoperated spring-pressed pins S2 connect levers U1 to the coupling-rod S of the steering gear, the levers U1 being pivoted to the axle at E1 and having eyes U2 for engaging stops on rods T3 through which the side-guards are moved. The outer ends of the side-guards project forwardly so that pressure from the front causes them to move outwardly, against the action of return springs T4, independently of the steering-gear connections. To enable the centre-guard to move sideways under side impact, it is connected to a member V2 having a pin-and-slot connection with a plate W2 pivoted to a fixed bracket W1, and side movement is permitted when the driver releases a cable-operated spring-pressed pin S3 normally preventing relative movement of the bracket and plate. The height of the guard from the ground may be varied by varying the position of stops F1 on the cranks P or by means of an L-shaped plate X1 sliding on guards on the chassis which lifts the member V2 when the driver operates a Bowden cable B5. A rubber tube containing a steel plate is bolted to the front of the buffer-bar C. In a modification the centre-guard J is omitted.
Patent GB-1181865-A (GB)
Title: Improvements in the Fixing of Walls or other Construction Elements, Especially in the Building Industry, and in Panels therefor
Inventor: ALEXANDRE PIERRE HUBERT
IPC: E04B2/82
Filed: 1967-07-14
Abstract: 1,181,865. Fixing wall panels; magnetic fasteners. P. H. ALEXANDRE. 14 July, 1967 [2 Aug., 1966], No. 32476/67. Headings E1W and E2A. A wall comprises panels fixed to opposite faces of a frame by magnetic attraction between permanently magnetised flexible bands secured to bands of yieldable foam material secured to the panels and magnetically permeable material contained by the frame.
Patent GB-1013022-A (GB)
Title: Improvements in or relating to tuning indicators for am/fm receivers
IPC: H03J3/14
Filed: 1963-08-16
Abstract: 1,013,022. Tuning indication. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 16, 1963 [Aug. 21, 1962], No. 32508/63. Heading H3Q. In an A.M./F.M. receiver a direct current meter is used for tuning indication, being connected to both detector circuits. In an arrangement using a Foster-Seeley detector, a pair of detector load resistors 6, 7, Fig. 1, in series are provided, with the meter 8 in series with one resistor 7. Tuning indication is obtained in reception of A.M. by returning the load resistor 13 of the A.M. detector 4 to earth via the meter 8: the arrangement is such that the meter reading in each case is unaffected by the detector circuit which is not in use, since this is biased back by the voltage developed by the active detector. The audio output is selected by switch 10 and applied to volume control 12 via capacitor 11. In an arrangement using a ratio detector the F.M. detector load resistor 15 (Fig. 2) is returned to earth via the meter 8 which is shunted by smoothing capacitor 9. Tuning indication is obtained for A.M. by returning the A.M. detector load resistor 17 to earth via the meter 17; this resistor comprises a potentiometer constituting the volume control, being connected via capacitor 16 to the ratio detector by means of switch 18. Means may be provided to equalize the indication on both ranges; e.g., the current derived on F.M. may be reduced by means of a shunting resistor 19. Specification 1,013,021 is referred to.
Patent GB-1019183-A (GB)
Title: Pre-settable electric switching device for controlling the mode of operation of a hot-water installation
Inventor: ROWSE RICHARD HAMILTON
IPC: G05D23/19
Filed: 1963-08-16
Abstract: 1,019,183. Actuation of switches; regulating switches. INTERNATIONAL BOILERS & RADIATORS Ltd. July 31, 1964 [Aug. 16, 1963], No. 32533/63. Heading H2B. In a control device for a domestic hot-water installation, the control knobs 8, 9 of two multiposition switches 4, 5, are mounted on spindles 6, 7, which also carry levers 13, 14 with fixed studs 15, 16, engaged in the slot 17 of a slotted link 18 so as to permit relative sliding movement between the studs 15, 16, and the link 18. The two switches 4, 5, are thus independently operable for some switch position movements and operate together for other movements, e.g. lever 13 is movable between positions a, band c (Fig. 3, not shown), and lever 14 is movable between positions " OFF " and a<SP>1</SP>, independently of one another, but movement of lever 14 from position a<SP>1</SP> to b<SP>1</SP> or c<SP>1</SP> would cause corresponding movement of lever 13 from position a to b or c. An electric clock 1 is arranged to control a switch 2 (Fig. 6, not shown) for two operative and two open time periods during twenty-four hours, switch 2 being located between the live mains lead 21 and fixed contacts a and a<SP>1</SP> of switches 4 and 5. Block 1 also controls a switch 3 for one operative and one open time period during twenty-four hours, switch 3 being located between lead 21 and fixed contacts band b<SP>1</SP>. Fixed contacts c and c<SP>1</SP> are connected directly to lead 21.
Patent GB-229808-A (GB)
Title: Improvements in beds for cloth cropping machines
IPC: D06C13/00
Filed: 1923-12-31
Abstract: 229,808. Devanayagam, A. C., and Barker, A. F. Dec. 31, 1923. Cropping; designs, producing.-The bed of a cloth-cropping machine consists of a number of plates A each mounted on a bar B at one end and resting at the opposite end on a rubber bed E so that the bed can yield to irregularities in the cloth. The plates, which may be of different heights to produce pattern effects, have legs C provided with projections engaging a bar K to limit their upward movement and to level their upper working edges. The legs B of the plates have apertures forming part of a circle, the bar D being so shaped that any plates can be removed by turning the bar through a quarter of a revolution. The plates may have thickened parts to reduce friction, and the bar D may have perforations to receive sticks of graphite. The part 1 carrying the bar D is adjustably secured to a block H supporting the rubber bed E.
Patent GB-397827-A (GB)
Title: Improvements relating to building construction
IPC: E04B1/348
Filed: 1931-11-24
Abstract: 397,827. Building plan. LALLEMAND, M., Landrichamp, Givet, Ardennes, France. Nov. 24, 1931, No. 32595. Convention date, Nov. 25, 1930. Void [Published under Sect. 91 of the Acts]. [Class 20 (i).] A building is composed of one or more structural units of square formation, each having a verandah 1 at one corner, a fireplace 2 at the opposite corner, and windows in the walls 11, 12, which meet near the verandah. In the form shown, loggias 3, 4 are provided near the walls 11, 12, and are separated from the centre part 7 of the unit by curtains or sliding panels 5, 6. A bedroom 8 with an entrance lobby 9 may be provided in one of the remaining corners as shown. When two or more units are provided at the same level, the fireplaces 2 are arranged adjacent to each other.
Patent GB-604732-A (GB)
Title: Improvements in or relating to hooks for hoists
IPC: B66C1/36
Filed: 1945-12-03
Abstract: 604,732. Hooks. WELDING INDUSTRIES, Ltd., and ORCHARD, R. H. Dec. 3, 1945, No. 32621. [Class 89 (ii)] [Also in Group XXX] A crane &c. hook is provided with a pivoted mousing member that tends to remain in the closedposition solely by gravity and that is closed more firmly by any pressure from the load carrying member within the hook but is readily movable either by hand or by pressure from the load member about to enter the hook. The hook is formed from plates 1 separated by distance pieces 9, 19 and outwardly cranked to receive the suspension pulley 20. The mousing piece 13 straddles the hook, the two parts having a connection at 14 that engages shoulders 15 on the hook plates forming a stop for the closed position. The opening movement is limited by the distance piece 19. The piece 9 comprises a pin headed at 10 and having a welded-on washer 12 ; it passes through the hook plates and a sleeve 7 welded to the plates at 8 and forms the pivot for the mousing piece. The hook is suspended by a pulley 20 having an antifriction bush mounted on a pin passing through the hook plates and retained in position by a split pin 24. A flat on the head 22 engages a welded-on abutment 26 to restrain the pin from rotation. A bar 30 welded to the plates 1 at 31 surrounds the pulley and acts as a guide for the rope. The hook is suited for use with a load-holder as described in Specification 595,172, [Group XXX].
Patent GB-995380-A (GB)
Title: Improvements in or relating to electrical apparatus
IPC: H01F27/40
Filed: 1962-03-15
Abstract: 995,380. Systems depending on two or more sources. DYNAMIC INSTRUMENT CORPORATION. March 15, 1962 [May 5, 1961], No. 32623/64. Divided out of 995,379. Heading H2H. An electrical apparatus comprises a load 50 which includes a battery 53-such as a radio receiver- and an electrical unit 56 as described and claimed in Specification 995,379, which is connectable to an alternating current source by means of plug pins 16, 22, the electrical unit 56 being connected to the battery 53 by a lead 40, 40<SP>1</SP> and a connecting device 43 and the battery 53 connected to the radio receiver 50 by a lead and a connecting device 49. Thus the battery 53 is floating on the A.C. supply and the current demands of the radio receiver 50 are divided between the A.C. supply and the battery.
Patent GB-834097-A (GB)
Title: Improvements in or relating to sun blind awning assemblies
Inventor: COXHEAD WILLIAM HARRY
IPC: E04F10/06
Filed: 1957-10-18
Abstract: 834,097. Roller blinds. ARTISTIC BLIND CO. Ltd. Oct. 16, 1958 [Oct. 18, 1957], No. 32648/57. Class 20(3) Sun blinds, in which the blind 15 hangs vertically when lowered, and is secured at one end to a blind roller 14 mounted within a housing 12, and at the other end to a lath 20 which is supported by two blind arms pivotally mounted within and at each end of the housing 12 and adapted to be wholly within the housing 12 when the blind is raised, have at each end of the housing a mounting comprising two spaced supports 6 each releasably mounting a blind arm and another mounting 9 vertically above the supports 6 and having a slot opening downwardly and inwardly to receive a mounting pin on the end of the blind roller. Each blind arm comprises two articulated members 18, 19, the upper ends of members 19 being transversely bored to receive the central enlarged cylindrical portions of spindles whose outer reduced portions, square in cross-section, are held within the slotted supports 6 by means of bolts inserted through the apertures 8. The mounting pin at each end of the roller 14 is held within the mounting 9 by a bolt passing through the apertures 11.
Patent GB-300029-A (GB)
Title: Improvements in or relating to non-return valves
IPC: F16K15/03
Filed: 1927-12-05
Abstract: 300,029. Blakeborough, R. A., Brotherton, C., and Brown, J. F. Dec. 5, 1927. Fluid - actuated valves; electricallyactuated valves.-A non-return valve of the kind provided with a pivoted valve member adapted to be held normally in an open position clear of the waterway has the valve member released by a fall in conduit pressure or by a break in the circuit through a motor driving a pump inducing flow through the conduit. The valve spindle b has a quadrant A carrying a roller B adapted to be engaged by a pivoted catch 0 and has a chain e adapted to be hooked to the end of a screwed spindle c operated by a hand wheel d for opening the valve. The catch c is released by a falling weight N normally held in its raised position by a lever having a short arm engaging a recess in a lever J. The lever J is connected at one end to a loaded spindle K provided with a valve member, piston or diaphragm subject to conduit pressure, and at the other end, which is loaded at J<1>, to the core of a solenod G energized so long as the motor circuit is intact.
Patent GB-950960-A (GB)
Title: Process and print materials for obtaining photographic positive images by diffusion-transfer
IPC: G03C8/28
Filed: 1960-09-23
Abstract: 950,960. Photographic diffusion-transfer procedure. GEVAERT PHOTO-PRODUCTEN N. V. Sept. 23,1960 [Sept. 24, 1959], No. 32863/60. Heading G2C. A print or receiving material, a number of which may be used for making successive copies from the same exposed silver halide emulsion layer, comprises a layer containing nuclei or nuclei-forming substance and at least one watersoluble basic polymer having in the side chain a heterocyclic group containing a quaternary nitrogen atom. In Example 1 paper is coated with a suspersion containing gelatin, colloidal zinc sulphide, hypo, phenyl mercapto tetrazole and poly- (1-vinyl-3-methyl imidazolium methyl sulphate) and overcoated with carboxymethylcellulose to form the receiving material, and up to 10 sharp prints may be made by pressing such on to an exposed negative material comprising a chloride emulsion containing urea as softener and corn starch, and which also is overcoated with carboxymethylcellulose in the presence of a specified pyrazolidone type developer. Succeeding examples use (2) poly-(1-methyl-4-vinyl-pyridinium methyl sulphate), (3) poly-(1-methyl-2-vinyl pyridinium iodide) and (4) poly-(1-methyl-4-vinyl pyridinium iodide as the polymer, and a few others for the purpose are referred to. Specifications 614,155, 654,630, 852,340, 895,960 and U.S.A. Specifications 2,484,420, 2,487,829 and 2,834,676 are referred to.