baber/WOPTO huggingface dataset:
Patent GB-1365061-A (GB)
Title: Valve bags
IPC: B65D30/24
Filed: 1971-12-21
Abstract: 1365061 Valve bags REED INTERNATIONAL Ltd 21 Dec 1971 02602/74 Divided out of 1357544 Heading B8K [Also in Division B5] A paper sleeve 4 is adhered within the valve of a multi-ply valve bag 1 so that a standard filter pipe can fit closely within the valve to prevent egress of material during filling. The valve comprises an outwardly open integral cuff 2 formed by folding the innermost paper ply 7. The bag may be block-bottomed.
Patent GB-543815-A (GB)
Title: Improvements in brackets for supporting roofing gutters
IPC: E04D13/072
Filed: 1941-02-26
Abstract: 543,815. Brackets. WOOTTON, H. N. Feb. 26, 1941. No.. 2613. [Class 52 (v)] A bracket for supporting roof guttering of the kind comprising a main arm 10 secured to a wall having an adjustable vertical stem 12 carrying a crutch like member 15 for supporting the guttering is provided with a stay 18 one end of which is riveted at 17 to the arm 10 and the other perforated at 20 to support the stem 12. An additional stay 21 may be provided below the arm 10 engaging the wall at 23.
Patent GB-192417-A (GB)
Title: Centrifugal friction coupling for starters for internal combustion engines
Filed: 1923-01-29
Abstract: 192,417. Neumeyer Akt.-Ges., F., and Knapp, K. Jan. 28, 1922, [Convention date]. Turning-gear. - In an electric starter comprising a dynamo-electric machine geared to the engine. through epicycle gearing controlled by centrifugally acting members a mounted on pivots b parallel to the shaft c of the dynamo, the members a are arranged in front of their pivots in the direction of rotation. The members a have wedge-shaped friction ribs a<1> for engagement with similar grooves i<1> in a member i having internal teeth k in mesh with a pinion f on the dynamo shaft c. Perforations v in the member i enable any oil in the grooves it to be thrown out by centrifugal action, and the friction surfaces are also protected from lubricating oil by a casing o, r, s around the epicyclic gearing. Planet pinions g, on a carrier p, q geared to the engine by toothed or chain gearing, mesh with the pinion f and with an internallly-toothed member d carrying the pivots b. The member d also carries pawls n, which are held by light springs y in engagement with a fixed ratchet w on the casing, and have tails m. in contact with studs l on the centrifugal members a. At starting, the member d is held by the pawls n and the engine is driven at low speed from the dynamo shaft c through the planetary gearing. When the engine starts, the centrifugal members a move outwards against the light springs y, disengaging the pawls n and coming into engagement with the member i, so that the planetary gearing is locked and the dynamo is driven at engine speed.
Patent GB-274919-A (GB)
Title: Method of improving the production of sulphuric acid from sulphur di-oxide
IPC: C01B17/82
Filed: 1926-01-29
Abstract: 274,919. Fielding, Sir C. W. Jan. 29, 1926. Sulphuric acid.-Sulphuric acid is produced from gases containing SO2 and free oxygen by forcing SO2 gas into a body of nitrous vitriol so as to raise the vitriol in intimate contact therewith as in an air lift and bringing about and continuing this intimate mixture partly as a foam and partly as spray. As shown in Fig. 1, gases are forced by a fan B into the main C, from which they pass downwards through numerous small pipes D', D<2>, &c. which are suspended in larger pipes or vessels F<1>, F<2>, &c. open at their lower ends and arranged in a tank G. The gases bubble up through the acid in the pipes F<1>, F<2>, &c., producing a foam which passes into the chamber H, where the liquid settles on to the bottom of the chamber and flue gas is drawn off from the top. In an alternative apparatus shown in Fig. 3, the mixture of gases enters near the bottom A, passes through sieve plates G<1> - - G<5>, and escapes by the opening B to a fan or suction device. The nitrous vitriol is introduced at C and passes over a cone distributor D, through a plate distributor E and the sieve plates G<1> - - G5 and escapes from the bottom through a pipe F. The sieve plates have slotted perforations which run at rightangles to those in the adjacent plates and are wider at the bottom than the top and inclined in opposite directions in successive plates. Perforated plates may also be provided beneath the level of the liquid in the chamber. Alternatively, a number of superimposed mesh devices may be employed, each cell or mesh giving support to a film of nitrous vitriol, or a succession of mesh devices may be inserted in a column of nitrous vitriol, serving to break up and distribute the ascending gases. Specifications 149,648, 198,332, and 216,192 are referred to.
Patent GB-1119336-A (GB)
Title: Rotary electric apparatus employing liquid dielectric media
IPC: H02N1/08
Filed: 1966-01-20
Abstract: 1,119,336. Electrostatic machines. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 20 Jan., 1966 [22 Jan., 1965 (2)], No. 2691/66. Heading H2A. An electrostatic generator of the conducting or insulating charge-carrier type is filled with a liquid dielectric 6 which is purified by the use of semi-permeable membranes between the dielectric and the electrode, whereby contaminant ions in the dielectric liquid are driven by the working field through the membranes and remain trapped in the cavity behind it. Different membranes are used to trap ions and cations. The stator carries membranes 8, 10, 12, 14 forming chambers 16, 18, 20, 22 in which the electrodes 44, 46, 48, 50 are located. Similarly, the rotor carries membranes 28, 30, 32, 34 containing electrodes 52, 54, 56 ,58 connected to contact segments 68, 70, 72, 74 in the usual way. The chambers and the working space are filled with a polar liquid. The migration of contaminant to the enclosed chambers, renders these and the membranes conductive. It is described (Fig. 2, not shown) how the spaces between the ends of the chambers may be filled to produce a smooth profile, and stator and rotor may be reversed. If desired (Fig. 4, not shown) only one member may have the membranes. The outer rotor charge-carrying plates may be secured to the outside of an insulating shell (Fig. 4) and as a modification of this arrangement (Fig. 5, not shown) the plates may be omitted to form an insulating charge-carrier type machine whose rotor is fed by ionizing electrodes (228, 230, 232, 234) in the usual way. The machine may act as a motor, and electronic commutation may be employed. Suitable polar liquids are nitrobenzene, nitrotoluene, nitromethane, ethyl alcohol, acetone and acetonitrile, and the liquid in the ion-trapping chambers may be different, e.g. a solution.
Patent GB-471409-A (GB)
Title: Improvements in the manufacture of high-vacuum tubes
IPC: H01J9/385
Filed: 1937-01-29
Abstract: 471,409. Obtaining and maintaining high vacua. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Jan. 29, 1937, No. 2700. Convention date, Feb. 1, 1936. [Class 8 (i)] [Also in Group XL] In the manufacture of high vacuum tubes, such as electric discharge tubes, with the aid of one or more alkaline earths as a getter, the source of the getter is, after the electrodes or other parts of the tube have been partly freed from occluded gases and after the tube has been exhausted, deprived of occluded gases which are removed, and an inert gas such as argon is admitted, whereupon the getter material is vaporized in the gaseous atmosphere. Finally, the inert gas is removed.
Patent GB-634765-A (GB)
Title: Improvements in racks for supporting articles and trucks or trolleys incorporating such racks
IPC: B62B3/00
Filed: 1948-01-30
Abstract: 634,765. Racks. GOUGH, T. Jan. 30, 1948, No. 2753. [Classes 52 (i) and 52 (iii)] [Also in Group XXXII] A rotatable rack for supporting pottery comprises a vertical column 8, mounted in a coplanar framework 1 and fitted with circular trays 17. The framework 1 may be fitted with wheels 6 and castors 7 to form a trolley, handles 27 being provided. The column is resiliently mounted on a compression spring 15  and can be locked against rotation by a bolt 21.
Patent GB-659321-A (GB)
Title: Heating device for tubular electric discharge lamps and the like
IPC: H01J61/52
Filed: 1949-02-01
Abstract: 659,321. Discharge lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES-ETABLISSEMENTS CLAUDE-PAZ ET SILVA. Feb. 1, 1949, No. 2755. Convention date, Feb. 13, 1948. [Class 39 (i)] A discharge tube, particularly a fluorescent lamp having a rarefied gas and metallic vapour filling and supplied with direct current, is freed from the effect of cataphoresis, i.e. the non- emission of light at the anode end of the tube, by a resistance heater situated at the cathode end and also serving as a ballast connected in the lamp circuit. A tubular fluorescent lamp 3 with electrodes 10, 11 is supported in a holder 6 enclosing a resistance heater 7 adjacent holes 9. The resistance 7 extends from the cathode end for a distance at least a tenth of that between the electrodes 10, 11 but terminates at a distance from the anode end equal to at least five times and, preferably, ten times, the tube diameter. Actual dimensions and ratings of the tube are given in the Specification.
Patent GB-579392-A (GB)
Title: Improvements in or relating to seal constructions, and pump constructions including the improved seal constructions
IPC: F16J15/36
Filed: 1944-02-15
Abstract: 579,392. Stuffing-box substitutes. THOMPSON PRODUCTS, Inc. Feb. 15, 1944, No. 2794. Convention date, Feb. 15, 1943. [Class 122 (v)] Sealing rings 17, 20 surround a pump shaft, the ring 20 being connected to the shaft by a flexible diaphragm 22 having an unobstructed bowed intermediate portion and engaging a collar 21c on the shaft which may be clamped to the shaft by a pressed sleeve 23 and held on the ring by a metal cup 24 under pressure of a spring abutting on a plate which is bottomed on the hub of the rotor, in which the splined shaft can slide, or by spring washers in a groove of the shaft. The collar normally engages a 'face of the ring, which may be recessed to receive it.
Patent GB-1427921-A (GB)
Title: Street lighting and the like
IPC: F21S8/08
Filed: 1972-01-21
Abstract: 1427921 Photo-electric twilight switches ROYCE THOMPSON ELECTRIC Ltd 21 March 1973 [21 Jan 1972] 2928/72 Heading G1A In order to automatically switch on a lighting assembly, e.g. street light, when the ambient light intensity falls below a certain level, a photosensitive detector is mounted on an adapter for inter-position between the lighting assembly and the end of a column or standard on which the lighting assembly is to be mounted. In the adapter 10 shown in Fig. 1, the photosensitive detector is mounted in a protective cover 15 which carries a conical light receptor 17 which may alternatively be a disc. The adapter shown in Fig. 2 has a boss 24 for receiving the sensor unit.
Patent GB-160628-A (GB)
Title: Improvements in and relating to coke ovens
IPC: C10B5/02
Filed: 1920-01-30
Abstract: 160,628. Ellis, G. B., (Foundation Oven Corporation). Jan. 30, 1920. Gaseous-fuel furnaces.-A regenerative coke oven has gas-ducts 14, 15 below each line of combustion flues 9, respectively supplied with gas from distributing passages 16, 18, which alternately communicate with a gas-heating passage 19, 20 by means of ports 23. 24 controlled by reversing- valves 26, 27 arranged in the end of the furnace structure. In Fig. 7, which shows the air and gas circulation, the gas ports are indicated by circles and the air and waste-gas ports by squares, gas and air being supplied to alternate flues 9 and waste gases withdrawn from the intermediate flues: the currents are reversed in the flues 9 bv means of the valves 26 and 27 and the regeneratorreversing valves. When gas of high thermal value is used, it may be supplied direct to the ends of the distributing-passages 16, 18, the heating-passages 19, 20 being inoperative. Specification 160,626 is referred to.
Patent GB-1192323-A (GB)
Title: A process for improving the Dyeability of Polyester Filaments
Inventor: EVANS EVAN FRANKLIN
IPC: D01F6/62
Filed: 1969-01-17
Abstract: 1,192,323. Improving dyeability of polyester fibres. E. I. DU PONT DE NEMOURS & CO. 17 Jan., 1969 [17 Jan., 1968], No. 2953/69. Heading B5B. [Also in Division D1] The dyeability of polyester filaments is improved by (a) drawing them in an amorphous state at a temperature above their " apparent minimum crystallization temperature," but below 180‹ C. in order to render them crystalline and to increase their tenacity; (b) relaxing the drawn crystalline filaments at a temperature above 180‹ C.; (c) dimensionally stabilizing the filaments by heating them under tension at a temperature higher than the relaxation temperature and lower than the " filament softening temperature " to further crystallize the filaments, with the proviso that during the stabilization, if the filaments are stretched then the extent of the elongation does not exceed the extent to which the filaments were allowed to relax in step (b). The relaxing temperature is preferably at least 15‹ C. below the stabilizing temperature and the stabilizing temperature preferably does not exceed 235‹ C. The relaxing temperature is preferably within the range 180- 210‹ C., the relaxation being effected with the filaments under tension. The filaments may be heated in step (b) in a free-to-relax state. The stabilizing temperature may be at least 195‹ C. The temperature at which the filaments are drawn is preferably at least 100‹ C., the temperature at which they are relaxed under tension preferably within the range of 180‹ to 210‹ C., and the stabilizing temperature preferably within the range 195‹ to 225‹ C. The filaments may be stabilized at constant length. The polyester may be polyethylene terephthalate, polytrimethylene terephthalate, poly(phexahydroxylene terephthalate), poly(diphenylolpropane isophthalate) or a polyethylene naphthalene dicarboxylate. The expression " apparent minimum crystallization temperature " is defined as the lowest temperature at which a marked rate of density change, which is known to occur simultaneously with crystallization, takes place within six hours. The density may be determined either in air or in silicone oil over a temperature range. The rate of density change alters quite abruptly from no change in 6 hours to a change within minutes when the temperature is increased by only a few degrees near the apparent minimum crystallization temperature. The " filament softening temperature " is regarded as being the same as the " polymer melt temperature " which is defined as the temperature at which a polymer sample becomes molten and leaves a trail when moved across a hot metal surface with moderate pressure.
Patent GB-670018-A (GB)
Title: Improvements in apparatus for coating articles with plastic material
Inventor: ROSE ALFRED GERMAN
IPC: A23G9/24
Filed: 1949-02-03
Abstract: An apparatus for coating articles with plastic material comprises a bath for containing coating liquid into which the articles are dipped in succession, a closed supply container having an outlet normally submerged in the liquid in the bath so that the liquid in the container is prevented from flowing into the bath while the level of the liquid in the bath remains higher than the outlet of the container, <PICT:0670018/III/1> said container being divided into upper and lower compartments and a valve being arranged to connect the two compartments. Referring to the drawing, chocolate in closed container 19 surrounded by water jacket 22 flows through pipe 21 to container 16 until level of chocolate 14 reaches the mouth of pipe 21 when flow stops and recommences only when dipping of icecream blocks 11 into the chocolate removes sufficient to lower the level in container 16.  An upper compartment is provided in container 19 by partition 24 carrying rotatable valve 27 with a series of passages 28 which on rotation of the valve can register with a series of ports 29, thus enabling the container to be refilled.  Stop cock 34 in pipe 21 allows the supply of chocolate to be cut off.
Patent GB-113495-A (GB)
Title: Improvements in and relating to Spark Plugs.
Inventor: RIGGS ALFRED LEANDER
IPC: H01T13/46
Filed: 1917-02-28
Abstract: 113,495. Riggs, A. L. Feb. 28, 1917. Sparking-plugs.-A sparking-plug having an external spark gap comprises a metal sleeve encircling the outer end of the insulating core, and a metal feed device within and in electrical contact with the sleeve. In one form, Fig. 1, the feeddevice is a metal ring 8, and the sleeve 6 is encircled by a split metal ring 15, the ends 16 of which are threaded to form the halves of a binding-post. The inner end of the sleeve 6 has a flange 7 engaging a recess in the insulation 4, or the sleeve 6 may be secured to the insulation by a bayonet joint. A glass or like cover 12 is secured by turning over the edge 14 of the sleeve 6, or by means of an annular threaded ring. The ring 8 may be obliquely divided, or pressed out of sheet metal, or replaced by an L-shaped terminal 43, Fig. 14. In the form shown in Fig. 7, the clamping-ring 28 is provided with slots engaged by projections 48 on the sleeve 6, and with projections 32 engaging the recess in the insulation 4. In another form, the metal sleeve and the clamping- ring have inter-engaging corrugations.
Patent GB-510442-A (GB)
Title: Improvements in or relating to electrically actuated fire preventing and extinguishing systems for use upon multi-engined aircraft and to devices for use in such systems
IPC: A62C3/08
Filed: 1938-02-01
Abstract: 510,442. Fire - extinguishing. GRAVINER MANUFACTURING CO., Ltd., and MATHISEN, A. Feb. 1, 1938, No. 3054. [Class 47 (ii)] In an extinguishing system for multiengined aircraft, a separate extinguisher is provided for each engine, and a single crash-operated switch controls all the extinguishers. In addition, individual temperatureoperated switches and selective manual switches are provided, and also a common gravity switch operating on inversion of the aircraft may be used. As shown, each engine nacelle b is provided with an electrically-operated extinguisher 3, a temperature-responsive switch 2 and a three-way terminal block 4. A crash-operated switch 12 is arranged in the lower, forward part of the fuselage a and manual switches 13, 14 are arranged in the cockpit. The wiring is such that closure of any of the switches closes the circuit through the battery 9 and the extinguishers. The switch 12, Fig. 7, comprises a number of pairs of contacts 15, 16 corresponding to the number of extinguishers to be installed and all operable simultaneously by a cam 18 controlled by the inertia element. The contacts are connected to pairs of terminals 22, 23, &c., which are wired to the appropriate blocks 4. If a gravity-operated switch also is provided, it may be connected in circuit through a switch which is controllable in such manner that the gravity switch cannot operate the extinguishers while the aircraft is in flight. Specifications 450,862. 458,429, 466,599 and 468,426, [Group XXXVII], are referred to.
Patent GB-1402850-A (GB)
Title: Hollow-ribbed floors
IPC: E04B5/26
Filed: 1972-01-22
Abstract: 1402850 Concrete floors PENMAN STRUCTURES Ltd 11 Oct 1972 [13 July 1971 22 Jan 1972] 32702/71 and 3124/72 Heading E1W A concrete floor is cast-in-situ over ribbed permanent metal forms 6 supported on the shoulders of pre-cast concrete beams I having initially projecting reinforcement 5a. A plasterboard ceiling 4 is supported via battens 3. The concrete beams 1 are supported on metal I-joists 11 having welded-on lower plates 12 and shear connectors 13. These joists are in turn supported by tubular steel stanchions 14 filled with concrete. The ribs (9), Fig. 2 (not shown) are of M-section, and taper to nothing at each end, as shown. in Fig. 1.
Patent GB-1105372-A (GB)
Title: Improved circuit for controlling induction motors
Inventor: BABAD LEON
IPC: H02P27/02
Filed: 1966-01-24
Abstract: 1,105,372. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 13 Jan., 1967 [24 Jan., 1966], No. 3134/66. Heading H2J. For driving operation of an induction motor having stator winding a-c thyristors TH1- TH3 are controlled to conduct simultaneously during a portion of each cycle of source A-C, the duration of which determines the power supply of the motor. For braking, thyristors TH2, TH3, are rendered non-conductive, and thyristor TH1 becomes continuously conductive, whereby the motor is supplied with direct-current through diodes D2, D3. When an accelerating signal is applied to the base of transistor Tr 1, the current through resistor R1 increases to provide a negative change of potential to trigger circuits TRIG 1-TRIG 3, and the thyristors are triggered to increase the power supply to the motor, diode D5 being poled to conduct under these conditions. At the same time, transistor Tr 2 becomes more conductive so that its collector potential is rendered increasingly positive, but diode D4 blocks this potential from the circuit TRIG 1. When a decelerating signal is applied to terminal T3, the current through transistor Tr 1 is reduced to discontinue the triggering of thyristors TH2, TH3, the positive change of signal being blocked by diode D5. Transistor Tr 2 reduces its current, a negative signal being transferred through diode D4 to effect continuous triggering of thyristor TH1. Unidirectional current is now passed through the motor windings for braking.
Patent GB-264666-A (GB)
Title: Improvements in automatic electric devices influenced by direction of current flow
IPC: H01H83/08
Filed: 1926-02-03
Abstract: 264,666. English Electric Co., Ltd., and Blandford, A. R. Feb. 3, 1926. Automatic circuit-breakers; electromagnetic switches.-An automatic device responsive to the direction of the current, of the kind in which an armature is influenced by two sources of magnetization, one of constant and the other of variable direction, comprises an E-shaped core 1 - - 4 and a U-shaped core 5, so arranged that the limb 1 is contiguous with one limb of the core 5 and the limb 2 is spaced away from the other limb so as to allow an armature 6 to move between them. The armature is pivoted on a non-magnetic pin 7 with clearance between it and the core 4 and is adjustable by a nut 10. A coil 11 on the bar 4 exerts a constant magnetizing effect on the E-shaped core, whereas a coil or bar 12 exerts a varying effect on the coil 5. With one direction of current the core 5 is arranged to be magnetized so that unlike poles are produced in the limb 1 and adjacent part of core 5, so that the flux circuit is through the parts 5, 1, 3, 4, 6 and the right-hand end of the armature 6 moves over to the core 5. If. however, the current reverses, the polarity will be, the same and the left-hand end of the armature will be attracted to the core 5. The position of the armature is adjustable by means of a screw 22, or by a plate 20 and screw 21. The armature may be arranged to operate the device to be operated by means of a pin 13 thereon engaging a lever 14 on a shaft 15, the latter carrying a lever 16 operating through a link 17 and lever 18 a rock shaft 19. By means of a slot 23 in the link 17 the device may be operated by hand independently of the armature.
Patent GB-451182-A (GB)
Title: Improvements in the manufacture of india-rubber or combined textile and rubber materials
Filed: 1935-02-01
Abstract: 451,182. Compound sheet materials. PURY, R. E. C. DE, 33, Tregunter Road, Earl's Court, London. Feb. 1, 1935, Nos. 3310 and 12542. [Class 140] [See also Group V] Perforated rubber sheets, bathing costumes, underwear, surgical stockings, &c. are made by spraying a layer, or layers which may be differently coloured, of latex on a metal or wooden former, having holes, with sharp edges, made by bevelling the edges from behind. Alternatively thin perforated metal sheets may be used. The articles are partially dried and stripped. When stripped, the second colour shows on the underside as a rim round the perforations. Elastic or other fabric may be pressed on one or both sides while still tacky. The fabric may be sprayed with latex before applying. The former may be heated by a current of air passing therethrough, and porous or hygroscopic material, e.g. plaster of Paris, may be applied before the latex, which may be prevulcanized.