baber/WOPTO huggingface dataset:
Patent GB-810315-A (GB)
Title: Improvements relating to electric control systems
Inventor: EMBREY DEREK MORRIS
IPC: G05F1/52
Filed: 1956-03-07
Abstract: 810,315. Rectifying. ELECTRIC CONSTRUCTION CO. Ltd. June 4, 1957 [March 7, 1956], No. 7200/56. Class 38 (2). [Also in Groups XXXVII and XXXIX] D.C. of controllable sense and magnitude is obtained at terminals 15, 16 from A.C. source 3 through two pairs of bi-phase connected gas discharge tubes 11a, 11b, 11a<SP>1</SP>, 11b<SP>1</SP>, the conductivities of which pairs are varied simultaneously in opposite directions by the application to their grids of alternating potentials varied appropriately by voltages derived in push-pull from secondary windings 1b 2b of transformers 1, 2 having cores whose degrees of saturation are varied oppositely by direct currents in control windings 1d, 2d. These direct currents are controlled by the application of the input D.C. signal to terminals 5 connected to the grids of valves 1e, 2e whose conductivities vary in opposite directions in dependence on the magnitude and direction of the signal. The outputs from secondary windings 1b 2b are rectified at 6, 6<SP>1</SP> and applied through potentiometers 9, 91 to the centre tappings of secondary windings of transformers 10, 101 to control the average values of the voltages applied to the grids of rectifiers 11a, 11b, 11a<SP>1</SP>, 11b<SP>1</SP> from the ends of those windings. The phases and amplitudes of the control voltages may be adjusted by varying resistors 26, 26<SP>1</SP> and potentiometers 25, 25<SP>1</SP> of phase-shift circuits supplying the primary windings of transformers 10, 10<SP>1</SP>. Potentiometers 33, 33<SP>1</SP> energized from rectifiers 30, 30<SP>1</SP> supply grid bias for the rectifiers. With zero signal, the outputs from transformers 1, 2 are equal and of such value that all four tubes 11a, 11b, 11a<SP>1</SP>, 11b<SP>1</SP> are cut off. The load may be the armature of a follow-up motor with a condenser 40 in parallel to prevent high voltages appearing.
Patent GB-258491-A (GB)
Title: A device or means for detachably securing boxes and the like to the running boards of motors cars
IPC: B60R9/02
Filed: 1926-03-16
Abstract: 258,491. Abraham, A. J. March 16, 1926. Receptacles, detachably securing to running boards.-Means for detachably securing boxes &c. to the running boards of motor-cars consists of a spring-controlled sliding hook member 15 operated by a lever handle 10, the hook engaging a spring-pressed pin 5 slidable in guides 4 in a box-like member 3 attached to the running board. The hooked end 19 of the member 15 is bifurcated to allow a projection 20 in the member 3 to enter the bifurcation and eject the pin 5 when the member 15 is pushed downwardly against the action of a spring 24 when the handle 10 is raised in lifting the box. A pin 28 on the handle enters a recess 27 in the sliding member 15 when the handle is released. Specification 271,201, [Class 44, Fastenings, Lock &c.] is referred to.
Patent GB-373683-A (GB)
Title: Improvements in apparatus for producing articles from pulp
IPC: D21J5/00
Filed: 1931-03-09
Abstract: 373,683. Moulding pulp. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Holed-Tite Packing Corporation ; 220, East 42nd Street, New York, U.S.A.) March 9, 1931, No. 7295. [Class 87 (ii).] Pulp is gathered by suction from a tank 2, Fig. 1,into moulds carried on the ends of the radial arms of a rotating spider A, transferred pneumatically at one point of the rotation to a co-operating spider B with radially-moving telescopic arms and again transferred pneumatically to a conveyer C for passing through an oven C<11> before final delivery. The spider A comprises wire-mesh moulds A<6>, Fig. 4, carried at the ends of rows of hollow radial arms A4 that can be connected through channels A<14> in the hub to suction or pressure-producing apparatus at will. The suction, which shapes the picked-up pulp to the mould and removes part of the moisture, continues until the mould is in register with the counterpart mould B<6> O the co-operating spider, at which stage the pressure is automatically turned on to transfer the article from the one mould to the other, assisted by suction-applied to the second mould. The spider B, Fig. 5, is equipped similarly to the spider A with suction-producing and pressure mechanism and in addition is provided with telescopic arms so that the moulds may move radially towards the moulds A<6> when in alignment therewith to enable the transfer to be effected. The moulds are moved radially outwards with accelerating speed and returned with corresponding retardation by means of eccentrics B<38> carried by shafts B<39> provided with mutilated pinions at their outer ends gearing at intervals with the toothed portion of a fixed mutilated circular rack. Dashpots are interposed between the mould-carrying arms in each row to cushion the radial movement. The conveyer chain C<10>, Fig. 13, passes upwards between the spider B and a suction head C<12> to receive the articles which are transferred to moulds formed by the links by simultaneous pressure applied to the spider B and suction at the head C<12>. The articles thus are carried through the oven C<11> and finally expelled by pressure when passing the head C<26>. The rings of ports forming the valves of the pressure and suction distributing systems are mounted on conical bearings at the ends of the spiders which are held to their seats by spring pressure. Both spiders and the conveyer are intergeared and driven from a common source to move in timed relation.
Patent GB-274810-A (GB)
Title: Improvements in and relating to the method of making counters for boots and shoes
IPC: A43D8/04
Filed: 1927-03-16
Abstract: 274,810. Spaulding Fibre Co., Inc., (Assignees of Peterson, C. A.). July 26, 1926, [Convention date]. Stiffeners. - Counter stiffeners with a projecting wing portion 26 are moulded in two operations. The first, an ordinary one, moulds the heel seat and flange and the second, using special moulds to prevent slipping, moulds the instep accurately in relation to the particular last required. The method is also applicable to counters, Fig. 7, for women's pumps having an extra long outer side.
Patent GB-390624-A (GB)
Title: An improved regulating device for searchlight arc lamps
IPC: H05B31/00
Filed: 1932-03-11
Abstract: 390,624. Rotary distributers. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. March 11, 1932, No. 7328. Convention date, March 11, 1931. [Class 38 (v).] The electrodes of an arc lamp are fed by gearing driven from a continuously-running electric motor through clutches which are periodically coupled and uncoupled by electromagnets ; the electromagnets may be energized through a rotating drum switch. This switch consists of a ring keyed to and insulated from a worm wheel 67, Fig. 2, driven from the motor 13 and mounted on a sleeve 65 surrounding a spindle 17 to which the gearing actuating the anode feed is coupled. The spindle 17 carries a pawl 85 which is forced into engagement with teeth 78 on the underside of the wheel 67 bv the armature 38 of the electromagnet 37 against the action of a spring 86. The circuit of the magnet 37 includes brushes 48, 49 arranged to make contact with the larger half of the ring 47, Fig. 2. The brush 49 is mounted on a movable ring 76 and by adjusting it the distance between the brushes and therefore the time during which the clutch is engaged can be regulated.
Patent GB-855943-A (GB)
Title: Reaction apparatus for photographic material
IPC: G03D3/02
Filed: 1959-03-03
Abstract: 855,943. Photographic processing tanks. AGFA A. G. March 3, 1959 [March 4, 1958], No. 7420/59. Class 98(2) The circulation of liquid in a processing tank having a circulation channel connected to its top and bottom is brought about by the reciprocating movement of a valved piston in the tank. As shown, an upper rectangular frame 7 is notched to support members carrying photographic material to be processed and is joined by four rods 9 to a rectangular frame 8 which is a loose sliding fit in rectangular tank 1. Pins 11 carried on arms 10 depending from frame 7 co-operate with lever 13 pivoted at 14 to move framework 7, 8, 9 vertically. Downward movement of liquid through frame 8 is prevented by an assembly of flaps 23 pivoted on rods 19 and, when rod 16 is moved downwardly by cam 17, the flaps 23 are pressed against one another as the frame-work 7, 8, 9 rises. The framework thereafter falls under its own weight and the flaps open and offer little resistance to the upward passage of liquid through frame 8. Frame 8 carries flow directing grid plate 29 to prevent turbulence in the region of the flaps from reaching the photographic material. In order to ensure that the flow of liquid is maintained during the downward motion of piston, an impeller (Fig. 3, not shown) is continuously operated in channel 4. The liquid level is maintained by an air-tight feed tank 38. A removable filter 37 is provided.
Patent GB-681030-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/36
Filed: 1950-03-24
Abstract: 681,030. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 24, 1950 [March 29, 1949], No. 7423/50. Class 39(i) A thermionic valve comprises silvered ferrochromium discs 4, 5, 6, sealed through the glass envelope and supporting the cathode 18, grid ring 20 and copper anode 8 respectively, the gilt grid wires anchored to ring 20 being arranged to engage the cathode side of the grid disc 5. The emissive member 18 of the cathode is a tapered block, having an internal supply of emissive material, and is supported by a tantalum foil cylinder 17, surrounding a cylindrical extension thereof the cylinder being supported by a bushing 16 attached to the cathode disc 4. A volatilizationretaining ring 22 surrounds the upper portion of the cathode and is secured to the ring 16 by three stay rods 23. The grid ring 20 and cathode bushing 16 are screwed against the discs 5, 4 respectively using resilient washers such as 28. Critical spacing between the cathode and the grid wires is ensured by assembling the valve as follows, Fig. 1 (not shown). One part of a two-part jig presses the emissive member of the cathode, before it is fixed in its final position, against a plate which is placed on the grid disc instead of the grid ring. The spacing between the surface of the plate contacting the grid disc and the surface engaging the cathode is equal to the desired spacing between cathode and grid plus the thickness of the grid. wires allowing for the expansion at the working temperature. This part of the jig is then clamped to the other part which surrounds it and abuts against the lower surface of the cathode bushing, 16. Thereafter the cathode structure is removed from the tube with the jig members, the foil tube 17 welded to the bushing 16, and the valve completed in known manner.
Patent GB-481004-A (GB)
Title: A manually operated travelling rowing machine
IPC: A63B69/06
Filed: 1937-03-16
Abstract: 481,004. Human-power driving-mechanism. TIDBURY, C. H. March 16, 1937, No. 7646. [Class 136 (ii)] [Also in Group XV] A travelling rowing-machine comprises a seat a adapted to be moved to and fro on rails t mounted on a carriage c which is moved on ground rails t<2> by a rack b on the seat a engaging a toothed wheel d clutched to a spindle e connected by a chain drive to the flanged wheels h. The wheel d engages a toothed wheel f adapted to be clutched to a spindle g also connected by a chain drive to the wheels h.. When the clutch lever m, n strikes a block o, o<1> at either end of the main track t<2> the direction of movement of the carriage c is reversed. Stump end oars s in swivelling eyes rare provided. The ground rails may be dispensed with.
Patent GB-1349131-A (GB)
Title: Electrical submersible motor-pump assemblages with means for supervising fluid-tightness
IPC: G01R31/34
Filed: 1973-02-16
Abstract: 1349131 Pumps A BLUM 16 Feb 1973  [18 Feb 1972] 7654/73 Heading F1A [Also in Division G1] The invention relates to an electric submersible motor-pump having the motor and pump in two compartments separated by an oil chamber with an electrode mounted therein as described in German Specification 1265855. The leakage indicating glow lamps of the prior Specification are replaced by a low voltage semi-conductor switching circuit, wherein the probe electrode is connected in base bias circuit of transistor controlling a thyristor to switch on a leakage indicator lamp.
Patent GB-557859-A (GB)
Title: Improvements in or relating to apparatus for the treatment of textile fabrics with a heating medium
IPC: D06C7/00
Filed: 1942-06-05
Abstract: 557,859. Treating textile fabrics with steam. DU PONT DE NEMOURS & CO., E. I., and POESL, C. N. June 5, 1942, No. 7662. [Class 15 (i)] An apparatus for treating textile fabrics in web or rope form with a heating medium, e.g. steam comprises a number of side by side tubes 11, 12 opening into chambers 20, 36, 40 through which chambers and tubes the fabric 18 is fed over pulleys 14, 15, 16, the steam being admitted through a conduit 50 and perforated distribution pipe 54 near the top of the tube 11. All the chambers are fitted with doors giving access thereto and the chamber 20 has an exit flue pipe 22, the steam from the inlet 50 traversing the tubes in a direction opposite to that of the fabric and being restricted from movement in the opposite direction by the partial closure lip 55 at the bottom of the chamber 36. Specification 542,413 is referred to.
Patent GB-215155-A (GB)
Title: Improvements in tweed hats
IPC: A42C5/04
Filed: 1923-03-17
Abstract: 215,155. Shieff, S. March 17, 1923. Drawings to Specification. Ventilating.-The crown of a tweed hat is provided with a row or rows of ventilation openings formed by the interstices of a hem-stitch seam or seams joining fabric pieces constituting the crown. Preferably, two parallel rows are provided, one on each side of the longitudinal centre line of the hat. The lining opposite the openings is cut away and the gap filled by a gauze strip.
Patent GB-1524374-A (GB)
Title: Polymerisation of vinyl halides
IPC: C08F14/06
Filed: 1976-01-30
Abstract: 1524374 Vinyl halide emulsion polymerization BRITISH PETROLEUM CO Ltd 30 Jan 1976 [25 Feb 1975] 7789/75 Heading C3P A vinyl halide is polymerized in a batch process employing an aqueous emulsion reaction system, a water soluble initiator, and an emulsifier, in which process the emulsifier is introduced into the reaction system dissolved in the monomer. Preferred emulsifiers are the ammonium and alkali metal salts of esters of sulphosuccinic acid. The preferred vinyl halide is vinyl chloride.
Patent GB-180781-A (GB)
Title: Differential clips for aerial ropeways
IPC: B61B12/12
Filed: 1921-03-11
Abstract: 180,781. Tamamura, Y. March 11, 1921. Rope grips.-Load-actuated grips for aerial ropeways, of the kind comprising a pair of differentiallyacting levers ot different lengths, are provided with means whereby the effective length of one lever, and therefore the grip on the ropes is varied automatically as the inclination of the rope varies. For single-rope haulage, Fig. 1, pairs of grip levers 2, 3 are pivoted together at 6, and the levers 2 are pivotally connected at 19 to a lug on a, shaft 14 from which the load hanger 18 is freely suspended by means of a sleeve 16. The levers 3 are provided with slots 7 in which works a pin 8 forming the connection between the levers 3 and the load. As the inclination of the hauling and supporting rope 1 varies, the load hanger swings on the shaft 14 and rotates, through multiplying gearing 13, a cam ring 10 which causes the pin 8 to move along the slots 7 and so varies the effective length of the levers 3. The rollers 23, which release the grip when they run on a rail at a station, are mounted on a carriage 22 which is normally maintained parallel to the rope by a double-spring hinge 25 enclosed in the hollow shaft 14. In a double-rope system, Fig. 7, the grip is constructed practically as before, except that the levers are inverted and the jaws are below the haulage rope 1. Wheels 33 run on a supporting rope and their carriage is connected through pivoted arms 30 to the pivot 6 of the gripping-levers. At stations supplementary rollers 23 run on rails 27 and relieve the gripping levers of the weight so that they release the haulage rope. The shaft 24 of supplementary rollers passes through a slot in the carriage of the main supporting wheels 33 so that the rollers can move up and down independently of the carriage. Specification 1565/07 is referred to.
Patent GB-545281-A (GB)
Title: Improvements in or relating to high-voltage overhead powertransmission
IPC: H02J3/04
Filed: 1941-06-23
Abstract: 545,281. Electricity supply. AKT.-GES. BROWN, BOVERIE, & CIE. June 23, 1941, No. 7885. Convention date, July 1, 1940. Addition to 545,276. Drawings to Specification. [Class 38 (iv)] Protective arrangements.-In the six-phase transmission system of the parent Specification, wherein three single-phase systems energize the line, mesh-connected coils are connected between the centres of the single-phase windings and three separate earthing inductances are connected to the same points.
Patent GB-692987-A (GB)
Title: Improvements in and relating to collapsible aerials
Inventor: MARRIS RICHARD QUENTERY
IPC: H01Q1/08
Filed: 1952-03-27
Abstract: 692,987. Aerials. ULTRA ELECTRIC, Ltd. March 27, 1952, No. 7915/52. Class 40 (vii). A collapsable radio aerial comprises a plurality of juxtaposed leaves of spring metal of progressively decreasing length attached to one another at one common end and forming sections of progressively varying thickness the leaves of each section being kept together by connecting means allowing them to slide longi. tudinally relative to one another. The aerial is normally mounted at its lower end on, for example, the top plate F of a transducer and the leaves secured together at their top ends. For this purpose slots 1 may be provided right througt the leaves and pins 2a with suitable retaining heads passec through them. In a modification, Fig. 3 (not shown), a tongue extends from the top of each leaf (except the longest) and passes through a slot in the remaining leaf or leaves which it secures by being turned upwardly on the far side. In another modification, Fig. 4 (not shown), bands are welded to the top of the leaves and pass round and retain the remaining leaves. The aerial may be wound in a coil and retained collapsed by passing of the coil between the brackets 3 and retaining it by a pin passing through the holes 3a. The spring leaves are preferably arcuate in section, the aerial being collapsed by coiling it with the convex face outwards.
Patent GB-1161777-A (GB)
Title: Thermally Developable Light-sensitive Elements
IPC: G03C1/498
Filed: 1967-02-20
Abstract: 1,161,777. Thermally developable photosensitive materials. FUJI SHASHIN FILM K. K. Feb.20, 1967 [Feb.21, 1966], No. 8004/67. Heading G2C. A heat-developable, light-sensitive material comprising a support bearing a layer containing (a) silver benzotriazole which is light-insensitive, (b) an inorganic halide which forms a silver halide by reaction with (a), (c) a reducing agent and (d) an organic acid or salt thereof, (c) and (d) possibly being the same. The inorganic halide may be hydrogen, ammonium or any metal whereas the reducing agent is generally a developer, a saccharide or hydroxylamine hydrochloride. The organic acid is preferably a monocarboxylic acid with 9 to 26 carbon atoms, a dicarboxylic acid with 4 to 10 carbon atoms and hydroxyl substituted benzoic acids. The above ingredients are coated in one or two layers in polymeric binders on a support imagewise exposed and developed by heating to produce a stable image. A sensitizing dye, 1, 3-diphenyl guanidine, sodium chloroaurate or a metal oxide or hydroxide may also be added to the layer.
Patent GB-744659-A (GB)
Title: Improvements in or relating to combustion equipment of gas turbine engines
Inventor: JANES RALPH
IPC: F23R3/04
Filed: 1954-07-29
Abstract: 744,659. Generating combustion products under pressure. ROLLS-ROYCE, Ltd. July 29, 1954; No. 8027/55. Divided out of and addition to 744,657. Class 51 (1). Combustion equipment for use in a gas turbine engine comprises a flame tube enclosed in an outer air casing, and means for admitting air to the combustion space are provided and comprises a duct or ducts extending along a wall of the flame tube, the duct or each duct having at its upstream end an inlet thereto which faces upstream into the air passage. An outlet aperture or outlet apertures is or are provided through the wall of the flame tube at a point along the length of the duct. The cross-sectional area of the duct or each duct increases from its inlet towards its outlet so that the velocity head of the air flowing in the duct is converted to pressure head. The duct or each duct is provided with a curved deflector which deflects the air smoothly through an angle so that air leaving the duct is directed towards the axis of the flame tube or with a component in the upstream direction. The combustion equipment shown comprises an annular flame tube having inner and outer annular walls formed of sections 24a, 24b and 25a, 25b, enclosed in an annular air casing comprising inner and outer walls 22, 23. Annular air ducts 61, 60 respectively are formed on the wall sections 24a, 25a by means of annular sheet metal pieces 63, 62, the ducts increasing in crosssectional area from the inlets to the outlets 41 formed in the flame tube walls. Curved through the apertures and deflect the air streams through about 120 degrees. The upstream edges of the apertures 41 are shaped to form curved lips 43. The upstream end of the flame tube also comprises a channel-section annular ring 31 which engages supporting elements 17 for the fuel ejecting devices 19, the elements 17 extending between aerofoil struts 16 interconnecting the walls 14, 15 of the diffuser section. Some air from the ducts 60, 61 passes beyond the apertures 41 in the flame tube walls and enters the flame tube through spaces between the wall sections. The invention is also applicable to combustion equipment comprising a plurality of flame tubes mounted within an annular air casing or each in its own tubular air casing.
Patent GB-512404-A (GB)
Title: Improvements in the regeneration of catalysts
IPC: B01J38/12
Filed: 1939-03-14
Abstract: 512,404. Regeneration of catalysts. STANDARD OIL DEVELOPMENT CO. March 14, 1939, No. 8151. Convention date, Sept. 1, 1938. Drawings to Specification. [Class 1 (i)] In tne regeneration of catalysts contaminated by combustible materials, the material is ignited at one end of the body and oxygencontaining gas is blown through from the other end, so that the combustion progresses in tne direction opposite to the flow of oxygencontaining gas. The ignition may be effected by controlling the gas current so that it attains ignition temperature only after being pre-heated by flowing through the whole depth of the catalyst. Alternatively, a preliminary gas current in a direction opposite to the main current may be used to initiate the ignition.
Patent GB-787225-A (GB)
Title: Improvements in or relating to flour or dough
IPC: A21D8/04
Filed: 1956-03-15
Abstract: The baking quality of flour or dough is improved by adding a mixture of a small quantity of ascorbic and/or reductic acid and a small quantity of a glucose oxidase preparation.  Dicalcium phosphate or maize starch may be added to the mixture.  Between 0.2 and 2 g. of ascorbic and/or reductic acid may be added to each 100 kg. of flour. Sufficient of the glucose oxidase preparation may be added to furnish between 5,000 and 10,000 glucose oxidase units per g. of ascorbic and/or reductic acid, one glucose oxidase unit (Sarett-unit) being the quantity of that enzyme which, under normal conditions, causes the absorption of 10 ml. of oxygen per minute in a glucose solution. The glucose-oxidase preparation may be from the mould Aspergillus niger.  Specifications 455,221, 517,348, 558,144 and 700,869 are referred to.