baber/WOPTO huggingface dataset:
Patent GB-1342780-A (GB)
Title: Half-tone-reproducing electro photographic plate
IPC: H01L31/08
Filed: 1971-06-23
Abstract: 1342780 Electro-photographic plate [MINOLTA CAMERA KK 23 June 1971 [23 June 1970] 29506/71 Headings G2C C17D2 and C17E An electro-photographic plate comprises a metallic base-plate having a pattern of discrete areas of another metal thereon, a photo-conductive layer covering the pattern and plate and an organic semi-conductor layer over the photo-conductive layer. In one embodiment Fig.2 (not shown) two patterns of discrete areas are formed, each of a different metal to the base. The base may be a polyester film with a layer of cuprous iodide thereon, a copper plate or an aluminium plate coated with oxide. The pattern of discrete areas is formed by attaching a stainless steel mesh on the plate and evaporating the second metal, e.g. Al, Sb or Cu, through it. After the mesh is removed a layer of Se-Te alloy or Se is evaporated on to the plate and a solution of polyvinyl carbazole and diphenyl trichloride in monochlorobenzene applied thereto. A rectifying barrier of Se, As 2 S 3  or Sb 2 S 3 , may be interposed between the pattern of discrete areas and the photo-conductive layer. Alloys of Se-As and Se-Sb may be used for the photoconductive layer. Other metals for the base and the pattern are specified. A plate sensitive to X-rays may be made.
Patent GB-1046430-A (GB)
Title: Improvements in or relating to electrodes for high frequency heating
IPC: H05B6/00
Filed: 1963-07-25
Abstract: 1,046,430. Electrodes for high frequency heating. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 25, 1963 [July 28, 1962], No. 29554/63. Heading H5H. High-frequency dielectric heating of concrete 8 is performed by drilling a hole 10 and inserting therein a conductor 1 having a dish-shaped end 5 filled with metal wool 4 for making contact with the concrete, the other electrode of the arrangement comprising an annular trough 2 also filled with metal wool 4. A low loss insulator 3 spaces members 1, 2 of which the former may be the centre conductor of a coaxial cable. The central electrode may be retractable for use with varying depth holes or on a fairly flat surface, Fig. 2 (not shown). If desired two dish-shaped electrodes and two drill holes may be used.
Patent GB-191882-A (GB)
Title: Improvements in or relating to folding tables
IPC: A47B3/02
Filed: 1921-11-07
Abstract: 191,882. Gwyther, E. N., and Meadows, R. G. Nov. 7, 1921. Folding and collapsable tables.-The top f is hinged about the middle to blocks b<3> fitted to a beam b pivoted at e to a stepped beam b<1>. The legs a are attached to the beams b. b<1> and to lower pivoted members c, c<1> and may be strengthened by inclined struts d. The legs and the top when folded as shown lie in parallel planes. Stops i retain the legs when opened out at right angles to each other.
Patent GB-1057885-A (GB)
Title: Apparatus for stopping a rotatable shaft at a predetermined angular position
Inventor: MARKLEW CECIL KEITH
IPC: B23Q15/26
Filed: 1962-08-02
Abstract: 1,057,885. Control of A.C. motors. ALFRED HERBERT Ltd. July 30, 1963 [Aug. 2, 1962], No.29676/62. Heading H2J. [Also in Division G3] An induction motor 31 has its speed reduced before stopping by an opening contactor 102 and closing contactor 103. As shaft 20 rotates at a low speed, coil 24 is coupled with coil 23 through gap 21 in disc 18, so actuating bistable circuit 27 which prepares gate 28 to stop the motor when coil 25 is coupled to coil 23 through gap 22 in disc 19. In this manner, the shaft 20 is stopped finally in a desired angular position. The voltage applied across each stator phase winding is reduced to provide operation at the creep speed, a phase winding being supplied from a bridge rectifier 40 associated with controlled rectifier 41 whose firing angle is varied by a signal derived from transformer 42. The primary winding of the transformer 42 is connected to trigger circuit 43, the rectifier 40 being connected to three-phase transformer 49. The trigger circuit 43 is connected to transformer winding 52 through lines 55, to the transformer 42 through terminals 66, and to transformer winding 77 through lines 76, the maximum duration of the pulse from the trigger circuit being determined by resistor 65 associated with transistor 63. According to Fig. 3 (not shown) a variable resistor (64) determines the minimum duration of the pulse and the angle of conduction of rectifier 41. The voltage applied to transistor (63) by variable resistor (61) is opposed by a rectified voltage from winding 77 proportional to the speed of the motor, the magnitude of the power pulses applied to the stator winding 32 being reduced in accordance with the speed feed-back signal. A speed control circuit 87 comprises a tachometer generator having an input winding which is energized with alternating-current, and an output winding applying signal through a transistor amplifier to the primary winding of the transformer 78.
Patent GB-535234-A (GB)
Title: Improvements in packings for power transmission shafts
IPC: F16J15/38
Filed: 1939-11-09
Abstract: 535,234. Stuffing-box substitutes. KERMODE, W. M., and KERMODE, H. T. Nov. 9, 1939, No. 29687. [Class 122 (v)] A sleeve 3 rotating with a power transmission shaft, e.g. a propeller shaft, has a sliding key connection with a ring 7 having a surface 8 bearing against a fixed housing, and a spring 10 is located between this ring and a sleeve 11 having a .sliding key connection with the ring 7, and having a surface bearing against a ring 12 in a recess in a ring 13 having a surface 14 bearing on the fixed housing; the ring 13 has lugs 18 engaging projections 17 on the housing to prevent rotation.
Patent GB-1159762-A (GB)
Title: Improvements in Anhydrous Liquid Ammonia Fertilisers.
Inventor: BARNES EDWARD
IPC: C05B17/00
Filed: 1967-06-28
Abstract: 1,159,762. Fertilizers. DIRECT NITROGEN Ltd. 30 May, 1968 [28 June, 19671, No. 29719/67. Heading C1B. [Also in Division A1] An anhydrous liquid fertilizer comprising anhydrous liquid ammonia and ammonium nitrate is injected below the surface of soil. The preferred proportions are 50-100 parts of nitrate per 100 parts of ammonia. The liquid fertilizer may also contain phosphorus sulphide and/or a pesticide.
Patent GB-398047-A (GB)
Title: An improved method of desulphurising coal distillation gases
IPC: C10K1/20
Filed: 1932-10-24
Abstract: 398,047. Purifying gases. GEWERKSCHAFT M. STINNES, 111, Viehoferstrasse, Essen, Germany. Oct. 24, 1932, No. 29745. Convention date, Oct. 23, 1931. [Class 55 (ii).] In the dry purification of coal gases using a system of at least three boxes, the gases after leaving the first box are treated in the succeeding boxes at an elevated temperature of at least 10‹ C. In an example, the gases are maintained at temperatures of 15-25‹ C. and 40-50‹ C. in the first box and succeeding boxes respectively. Air or steam may be added intermittently or continuously to the gases under treatment and increased pressure used in the boxes. Specification 18597/12, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-519350-A (GB)
Title: Directional radio antenna arrays
Filed: 1938-10-14
Abstract: 519,350. Aerials; directive wireless signalling. STANDARD TELEPHONES & CABLES Ltd. Oct. 14, 1938, No. 29838. Convention date, Dec. 6, 1937. [Class 40 (v)] Three or more frame aerials are so arranged as to reduce radiation in one plane and increase it in the other. As shown in Fig. 3, the aerial ABCD is directly energized and excites the two side aerials FGHE and IJKL by induction. The upper and lower horizontal limbs of all the aerials then combine to give three times more radiation in the direction OY than the two vertical limbs, FG and LK, give in the direction OX, the radiation from the remaining vertical limbs EH, DA and CB, IJ being cancelled because of their close proximity to each other. The arrangement shown in Fig. 3 may be duplicated to give an horizontal array with two directly-energized aerials and four associated aerials, the latter being fed by induction. In Fig. 5, the two central aerials are voltagefed as shown, the two outer aerials being excited by induction. The radiation in the direction OY is then four times that in the direction OX. In all cases, waves travelling in the direction OY are polarized in the plane OX, and vice versa. In Fig. 7, the two crossed lower frames are directly energized in phase-quadrature, and the upper crossed pair by excitation from the lower, to give a rotating field which is uniformly distributed in space. This arrangement is stated to be suitable for transmitting (or receiving) television signals, and to be free from " night-effect." The two outer frames in Fig. 3 may be keyed to produce an " overlapping- beam effect. The directional properties of the frame-aerial combination may be utilized for the navigation and blind landing of aeroplanes, and for the detection of a distant aeroplane which reflects an outgoing beam.
Patent GB-312564-A (GB)
Title: Improvements in drawing appliances
IPC: G09B11/04
Filed: 1928-10-16
Abstract: 312,564. Liebetruth & Co. Ges., A., and Liebetruth, H. Oct. 16, 1928. Stencils.-In drawing-slates or tracing-appliances of the kind wherein copy-sheets and a superposed sheet of ground-glass are mounted upon a sheet-metal base, the portion of the metal base normally covered by the copy-sheets and glass plate may be perforated or cut out in the form of pictures, geometrical designs, &c., Fig. 6, the outline of which may be traced upon a paper placed beneath them. Specifications 300,450 and 300,854, [both in Class 146 (ii), Stationery &c.], are referred to.
Patent GB-265720-A (GB)
Title: A new or improved device for use in making articles by processes which involve the fabrication of yarns, threads and the like
IPC: D04G3/02
Filed: 1925-11-27
Abstract: 265,720. Peri-Lusta, Ltd., and Tatton, J. Nov. 27, 1925. Miniature and hand - power looms; goods of exceptional character, looms specially designed for.-A device for use in making handbags or other articles from yarns, threads, &c. comprises a flat card &c. 1 adapted or having means to hold a number of warp threads &c. 4 in radially arranged form, with which other threads 5 can be woven or darned &c. The card may be shaped or be provided with marks or with holes corresponding to the outline of the article to be prepared, and one or more rings 2 or other members may be fastened by strings or adhesive to the card, these strings &c. forming part of the article to be produced. The manner in which the device is used for making a lady's handbag of silk, artificial silk, wool, or other yarn, or of cord or string &c., is described in the Specification. The device can be used for teaching weaving and darning &c.
Patent GB-487206-A (GB)
Title: Cabinet for lubricant dispensing apparatus
IPC: F16N5/00
Filed: 1937-11-02
Abstract: 487,206. Dispensing lubricants. ARO EQUIPMENT CORPORATION. Nov. 2, 1937, No. 30003. Convention date, Sept. 23. [Class 116] A cabinet for lubricant-dispensing apparatus comprises a base B which may be mounted on wheels or castors 12, and an open-bottomed housing H which rests on the base and supports the lubricant pumps, fluid pressure means being provided to elevate the pump-carrying members. The housing may itself carry the pumps so that the whole housing is elevated to enable oil-drums to be removed from or placed on the base, or pump-carrying platforms resting on the housing may be raised independently of the housing, in which case the housing is provided with doors for access to the base. When the housing carries the pumps, hollow piston rods 16, Fig. 6, are loosely coupled to the stiffened top 19 of the housing by bolts 23 having a cross-pin 27 seating in a notch in a plug 20 at the upper end of the piston rods, turning of the piston rods being prevented by pins 28 in the housing engaging in a slot in the plugs 20. The pistons 15 work in cylinders 14, to the lower ends of which compressed air can be admitted through a connection 36. The cylinders are bolted into tubular transverse members 13 in the base. Sleeves 59 on the piston rods engage guide plugs 18 in the cylinder ends to determine the elevated position of the housing. The pumps have intake pipes reaching nearly to the bottom of oil-drums D on the base when the housing is in lowered position, and are operated by compressed air supplied through valves 52 from a single connection 49. Rails 47 and hooks 48 on the housing carry the hoses and nozzles of the various pumps. Compressed air is conveyed by a hose 56, which may be coupled either to the connection 49 for operating any selected pump, or to a connection 32, having a restricted orifice, for elevating the housing to enable oil-drums to be removed from or placed on the base: When pump-carrying platforms are elevated independently of the housing, the platforms may be rigidly coupled together, or may be independent, the pipe connections to the elevating cylinders being arranged accordingly. Specification 473,221, [Group XXVIII], is referred to.
Patent GB-299053-A (GB)
Title: Improvements in washing machines
IPC: D06F37/30
Filed: 1928-10-18
Abstract: 299,053. Inventia Patent - Verwertungs-Ges. Oct. 20, 1927, [Convention date]. Washing-machines with rotary receptacles.- The container 10 for the washing materials and articles to be washed is removably carried by a driven frame 12 comprising four arms having upstanding ends 36. Rubber pads 35 are interposed between the container and the frame, and the upstanding ends are rubber lined. Compression springs are arranged between the container and ends 36. The frame 12 is rotarily reciprocated about a shaft 13 from a motor 14, through reduction gear and a crank arm 23. The reduction gear may be wholly spur gearing or as shown may comprise a combination of worm and spur gearing. The supporting frame 16 is arranged to be wholly or in part stowed within the container 10 for transport &c.
Patent GB-537072-A (GB)
Title: Improvements in or relating to electric secondary cells
IPC: H01M2/12
Filed: 1939-11-16
Abstract: 537,072. Accumulators. FULLER, L., and SUDLOW, E. W. Nov. 16, 1939, No. 30199. [Class 53] Each electrode comprises a troughshaped metal support 17 filled with active material 18, the electrodes being separated, and preferably surrounded, by porous separating material 22, 23 soaked with electrolyte. The ebonite casing 10, Fig. 1, may have a threaded closure member 12 provided with a threaded stopper 14 which serves as a vent during charging but is screwed down during use. The supports 17 are formed with end walls 20 to which the leads 21 are attached. After assembly, the lower end of the casing 10 is closed by a layer of pitch &c. 25. In a modification, the metal supports 17,' Fig. 3, are of lead wire gauze or perforated lead, one electrode being connected by wire 27 to a terminal plate 26 at one end of the cell, and the other electrode being connected to the vent stopper 14 which serves as the other terminal. Pressure may be applied to the electrodes and separating material by the closure member 12, Fig. 1. The electrodes may be formed by producing electrolytically spongy lead, or lead peroxide, which is dried, and mixed with electrolyte to form a paste, the pasted electrode being dried in a vacuum or in an atmosphere of nitrogen or other inert gas to avoid oxidation. The separating material may consist of kieselguhr; glass wool or asbestos fibres, mixed with bentonite and/or rubber latex, or an aqueous suspension of kieselguhr and bentonite may be used. To assist in assembly; the two electrodes and intervening separating material may be bound together by rubber bands or strands of silk, cotton or glass. Specification 537,102 is referred to. The Provisional Specification states that the electrodes may be surrounded with pitch or other inert substance instead of with porous separating material. Specification 506,062 also is referred to.
Patent GB-191887-A (GB)
Title: Improvements in inlet control mechanism for motor-driven air compressors
IPC: F04B39/08
Filed: 1921-11-12
Abstract: 191,887. Belliss & Morcom, Ltd., and Tongue, J. F. Nov. 12, 1921. Valves controlled by pilot or relay valves.-In mechanism for controlling the inlets of air compressors wherein a valve in the inlet is closed by a piston controlled by a relay valve held against the air pressure by a loaded lever, the inlet after a portion of its closure stroke relieves the relay valve of a portion of the load of the lever. As shown in Fig. 1, the inlet closure valve a carries a piston b on its stem, moving in a cylinder which is opened to the air pressure or to atmosphere by a relay piston valve d depressed by the air pressure against a loaded lever f acting upon its stem. The weighted arm of the lever is connected by a rod g with a lever h through a light spring i and knife-edge j. The lever extends across the path of the main valve stem and is supported by an adjustable rest l. During the last part of the rise of the main valve, its stem lifts the lever h, compressing the spring i and assisting to raise the weighted arm of the lever f. In the modification shown in Fig. 3, the weighted lever f rests upon the relay valve stem and its end is forked and embraces a tubular casing m supported by a spring from a shoulder c<1> on the main valve stem and carrying a collar n which engages the fork of the lever when the valve rises. In a further modification, the shoulder c<1> carries a loose rider weight when the stem rises sufficiently, but this weight is normally received by the fork of the lever.
Patent GB-465137-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/52
Filed: 1935-11-01
Abstract: 465,137. Discharge lamps; two-part couplings. BRITISH THOMSON-HOUSTON CO., Ltd., and DAVIES, L. J. Nov. 1, 1935, No. 30264. Drawings to Specification. [Class 39 (i)] [Also in Group XXXVI] Each cap or contact of a discharge lamp, which is operated when immersed in water or other liquid, comprises a tube of copper or similar metal, encasing closely a body of lead or similar metal terminating the leading- in wire. A jig may be used to cap the lamp, and the copper tube may be filled with the lead, and may be coated externally with an insulating paint or varnish or with a vitreous enamel. The tube may extend partly over the lamp to form a heat shield.
Patent GB-1124847-A (GB)
Title: Plastics pourer cap
IPC: B65D47/10
Filed: 1966-07-06
Abstract: 1,124,847. Stoppers; pouring spouts. GENERALE ALIMENTAIRE S.A. 6 July, 1966 [6 July, 1965], No. 30276/66. Headings B8D and B8T. A plastics stopper is moulded integrally with an elongated pull-strip 8 and a rupturable closure membrane 6, lines of weakness 7 &c. tearing when the strip is pulled to break the membrane and open the bottle &c. on which the stopper is used. As shown, a circular outer line of weakness 7 surrounds the membrane 6 and connects it to the main body of the stopper. An inner arcuate line of weakness 11 extends part-way round the membrane 6, and terminates with a short radial line of weakness 12 at one end adjacent an integrally moulded connection 9 to the pull-strip 8. When the bottle &c. is opened by pulling the strip 8, the whole membrane 6 is torn out of the stopper. The pullstrip 8 is of helical configuration, and ends with a spherical knob 10. After opening, the stopper can be temporarily closed by a cap (13), Fig. 1 (not shown), force-fitted or screwed on to a flange 15, Fig. 2, around the stopper. A pouring lip 5 surrounds the rupturable membrane 6, and a ring-shaped bead 4 inside the stopper skirt 2 grips a correspondingly shaped groove around the mouth of the bottle (3). In a modification, the inner arcuate line of weakness 11 is replaced by a radial line of weakness (16), Figs. 4, 5 (not shown), extending to the centre of the membrane (6). In another modification, the rupturable membrane (6), Figs. 6, 7 (not shown), is moulded integrally with the stopper adjacent its pouring lip (5), instead of some way below, and the pull-strip 8 is flat, is wound very nearly into a closed circle, and has a flat knob (10) at its end.
Patent GB-773055-A (GB)
Title: Improvements in surgical suction pumping apparatus
Inventor: ALLEN FREDERICK BENJAMIN
IPC: A61M1/00
Filed: 1955-10-24
Abstract: 773,055. Liquid withdrawing apparatus. GENITO-URINARY MANUFACTURING CO:, Ltd. Nov. 30, 1955 [Oct. 24, 1955], No. 30311/55. Class 81(2) In a liquid withdrawing apparatus the control valve and bottle filling assembly is made as a unit which is detachable from the motor and pump casing. This assembly is carried on a plate 10, Fig. 1, which carries a liquid trap 15, a control valve 30 and filling heads, each having a hemispherical resilient member 7 against which bottles 6 are pressed by stands 5. The whole assembly is carried in slides 9 and, when in position, a tubular spigot 16, Fig. 3, engages in a tube leading to the suction pump. From this tube a duct 33 leads to the fluid trap 15 and thence a tube 20 leads to a changeover valve plug 17, which determines which of the two available bottles is to be filled. The draw-off duct also extends through this valve to the tube 21, changeover cock 31 and optional attachment 22 for the tubes leading from the patient. If fluid enters the vacuum system, owing to a bottle becoming over full, it collects in the trap 15 and, ultimately, a float 32 closes the vacuum duct 33 'and the balanced valve 34 then opens to allow the fluid to run off into a container.
Patent GB-1124796-A (GB)
Title: Electrical relay arrangement
Inventor: LAURENCE ROGER FREDERICK
IPC: H03K3/30
Filed: 1965-07-16
Abstract: 1,124,796. Transistor relay-operating circuits. KENWOOD MFG. (WOKING) Ltd. 18 May, 1966 [16 July, 1965], No. 30391/65. Heading H3T. In a relay-operating circuit, a pair of windings on the relay are connected to a transistor or valve so as to form a blocking oscillator, auxiliary contacts 7 on the relay being arranged to operate before the main contacts 9 so as to hold the relay energized when the blocking oscillator is triggered. The invention is applicable to control of domestic appliances by a signal from a photo-cell, electronic timer or thermistor connected across terminals 16, 17. When the resistance of the sensor connected at 16, 17 becomes increased the transistor becomes conductive, so that the relay is energized by regenerative feedback between windings 3, 2. Hold contacts 7 are first closed by armature 6 so as to increase the magnetization of the relay so that armature 8 may close the main contacts 9. Operation by decrease in resistance of a sensor many be achieved by connecting the sensor in series with resistor 22. Time delay operation may be achieved by the inclusion of components 20, 21.
Patent GB-1146926-A (GB)
Title: Improvements relating to thickening agents
IPC: B01J19/06
Filed: 1967-07-03
Abstract: 1,146,926. Thixotropic thickeners. W. R. GRACE & CO. 3 July, 1967 [1 Aug., 1966], No. 30595/67. Heading C1A. [Also in Divisions C3 and C5] A binary composition of finely divided chrysotile asbestos in the form of fibres having cross-sections in the colloidal range 5 to 95% by weight and silica of particle size 2 to 10 microns 95 to 5% by weight for use in thicken- .ing liquids is produced by a process which forms a rotating body of particulate chrysotile asbestos and silica suspended in a gaseous medium in a grinding -zone at a temperature between ambient and 650‹ C., into which is continuously injected further gas in a plurality of high velocity streams directed inwardly into said body so as to cause extreme turbulence therein, withdrawing the gaseous medium and the composition and separating the composition from the gas. Suitable gaseous media are air and steam. The process may be carried out in a fluid energy mill of known type, and the operating pressure is from 7 to 35 preferably 7 to 21 kg/cm.<SP>2</SP> (gauge) and auxiliary gas may be fed in at 7 to 35 kg/cm.<SP>2</SP> preferably 10À5 to 35 kg/cm.<SP>2</SP>