baber/WOPTO huggingface dataset:
Patent GB-629785-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/12
Filed: 1947-11-27
Abstract: 629,785. Bearings. BRIX, V. H. Nov. 27, 1947, No. 31478. [Class 12 (i)] A bearing of the type having coacting rubbing surfaces such as a plain journal or thrust bearing or floating pad-type bearing has one of the bearing surfaces formed from chromium and the coacting surface formed from silver. The bearing is lubricated by an aqueous liquid.
Patent GB-1441811-A (GB)
Title: Inverters
IPC: H02M7/515
Filed: 1973-07-02
Abstract: 1441811 Inverting M ETTER 2 July 1973 [14 July 1972] 31486/73 Heading H2F In an inverter in which each phase unit comprises a series chain of two main thyristors T1, T2, across D.C. input terminals ab and having inverse diodes D1, D2 connected as shown, a stepped wave output is obtained by use of two further thrystors T3, T4 connected as shown, between the series chain and at least one intermediate point 0 of the D.C. supply. A commutating source Ca, Cb in series with at least one commutating switch Ta, Tb and a commutating diode D<SP>1</SP>a, D<SP>1</SP>b is connected between each intermediate point 0 and the D.C. supply terminals ab. Auxiliary diodes La ... L<SP>1</SP>b and auxiliary diodes Da, Db are preferably included in the path to the D.C. supply terminals. The inverter is applicable to supply of power to a motor, e.g. at frequencies below 5 Hz. Initially T1 is turned on giving a positive voltage at R until T3 and transistors Ta are turned on so as to turn off T1 by reverse discharge of Ca. The output R is now connected to the intermediate tapping 0. T2 and transistors Tb are now turned on so as to turn off T3 and set the voltage at R to that of line b. The steps are smoothed by inductors LR ... L T . The effective output voltage may be adjusted by pulse width modulation. Diodes D1, D2 may be replaced by thyristors.
Patent GB-1150074-A (GB)
Title: Improvements in and relating to the Coating of Refractory Materials
Inventor: SELMAN GORDON LESLIE
IPC: C23C16/06
Filed: 1965-07-23
Abstract: 1,150,074. Coating with metals. JOHNSON, MATTHEY & CO. Ltd. July 5, 1966 [July 23, 1965], No.31555/65. Heading C7F. A refractory material, e.g. alumina, is coated with platinum or a platinum group metal or an alloy thereof either by vapour depositing PtO 2  or other reducible compound and subsequently heating the coating to reduce it to Pt or by introducing the substrate at a temperature of 400 to 500‹C. into the PtO 2  vapour to reduce the vapour and deposit Pt on the substrate. A further coating of Pt may be electro-deposited on the coating.
Patent GB-860573-A (GB)
Title: Regulating device for centrifugal separators
IPC: B04B11/02
Filed: 1958-10-03
Abstract: 860,573. Valves. SEPARATOR A.B. Oct. 3, 1958 [Dec. 28, 1957], No. 31622/58. Class 135. [Also in Group II] A regulating device 5 fitted in the inlet line and in an outlet line of a separator 1 for liquids has a channel 20 capable of connecting the lines. The inlet and outlet lines are respectively connected to the device at 14, 15, and the nipples 18, 19 of the device are respectively connected to the inlet 2 and the lighter component outlet 3 of the separator. A slide 21 is connected by a rod 22 to a valve member 23 which is urged by a spring 24 towards a seat 25 in a channel 16, and a slide 28 is urged by a spring 29 towards a channel 17. Back-pressure caused by the closure of a valve 4 in the outlet line moves the slide 21 into the channel 16 to block supply to the separator and to connect the inlet and outlet of the separator. If, in the separator, the inner surface of the heavier component should move outside of the large plate at the top of the stack of liner plates, loss of material being separated is prevented since the fall in pressure in the outlet 3 causes the valve member to engage the seat to block supply to the separator whilst the slide 28 blocks the channel 17 to prevent return of the component in the outlet 3 to the separator. The position of the inner surface of the heavier component may be moved by adjusting a screw 30 to alter the load on the spring 29. The device may be incorporated in the hinge and cover of the separator casing.
Patent GB-467338-A (GB)
Title: Improvements in and relating to armrests for seats
IPC: A47C7/70
Filed: 1935-11-15
Abstract: 467,338. Arm-rests for seats. GANT, M. Nov. 15, 1935, No. 31719. [Class 52 (ii)] A seat arm-rest 3 has an extension piece 5a hinged to its forward end, the front end of arm-rest 3 being formed as shown so that when the piece 5a is folded onto the arm-rest 3 the upholstered surface of the piece 5a is coplanar with that of the arm-rest 3. The arm-rest 3 may be provided with an ash tray 8 and means for locating a glass, cup and saucer or the like may be provided in either the arm-rest 3 or the piece 5a. Means may be provided for closing the ash tray or for maintaining it in an upright position, when the piece 5a is turned from one position to another. Means such as a stay, bracket or like member may be provided to support the piece 5a in its extended position.
Patent GB-189452-A (GB)
Title: A new or improved means for measuring diameters
IPC: G01B5/08
Filed: 1922-11-21
Abstract: 189,452. Pryce, L. Nov. 28, 1921, [Convention date]. Linear-dimension gauges.-Comprises a hollow cone-shaped member adapted to receive the extremity of the article to be gauged and a cooperating graduated bar sliding axially through the reduced end of the cone for reading off the diameter. The invention is described as applied to the measurement of the largest diameter of the cutting edges of rock-drill bits. A hollow truncated cone-shaped member A is carried on a base F, and is secured to a scale guide G as shown. A graduated rod or scale I passes through the smaller hole of the cone and the guide G, and abuts at its end against the part to be measured which is inserted into the cone. The end of the rod I is provided with a plate N which is hollowed to receive the centre of the drill where the latter protrudes beyond the outer edge of the drill. The dimension is read at the zero of an excess-and-defect scale M. The rod may be returned by a spring after each measurement.
Patent GB-781867-A (GB)
Title: Improvements in or relating to machines for manipulating cut tobacco
IPC: A24C5/34
Filed: 1952-12-15
Abstract: 781,867. Automatic tobacco control systems. MOLINS MACHINE CO., Ltd., MOLINS, D. W., and POWELL, G. F. W. Dec. 15, 1952, No. 31763/52. Drawings to Specification. Class 38 (4). In a machine for manipulating cut tobacco in which the tobacco is fed from a hopper to form a moving filler, deviations in the mass of the filler are detected by a Beta-ray device producing electrical signals which are amplified electrically and applied through an integrating network to control a two-way electrical relay one or other contact of which closes when the deviation exceeds a predetermined limit so that the speed of apparatus controlling the rate of feed from the hopper is adjusted to correct the deviation. The cigarette making machine described is substantially identical with that described in Specification 781,041, but the mass error signal obtained after rectification of the output of the vibrating electrical condenser is, in the present Specification, applied through an integrating resistance-capacity network to operate one or other of two relays if the mass is a predetermined amount above or below the desired value. The operating points of the two relays are adjustable by potentiometers arranged in a bridge circuit and the relays control the rate of feed by means of a ratchet motor-type speed adjuster. Specifications 684,503, 781,042, 781,043, [Group XL (b)], 781,044, also are referred to.
Patent GB-520899-A (GB)
Title: Improvements in the manufacture of filaments, foils and similar materials
IPC: D06M13/21
Filed: 1938-11-03
Abstract: 520,899. Cellulose derivatives; treating filaments, films, &c. with esterifying and etherifying agents. DREYFUS, H. Nov. 3, 1938, No. 31857. [Class 2 (ii)] Natural or artificial filaments, foils, and similar materials having a cellulose basis are caused to react with reagents containing an esterifying radicle and another atom or group capable of reacting with the hydroxy groups of the cellulose nucleus. The other atom or group may be one capable of forming an ester or ether linkage with the cellulose molecule. It may be a halogen atom, primary or secondary amino group or an ethylene oxide group, or it may be a carboxylic acid anhydride or halide radicle. The materials may thus be treated with a dibasic acid or anhydride thereof, preferably in presence of a halogen-containing agent such as thionyl chloride, or with a dibasic acid halide. Oxalic, malonic, succinic, glutaric, adipic, phthalic, and hexahydrophthalic acids are specified dibasic acids. Halogenated or amidated monobasic acids such as chloropropionic or butyric acid, or o-chloromethyl benzoic acid may be used. The materials may be caused to react with carbonyl chloride, thiocarbonyl chloride, or thionyl chloride. The reaction may be carried out in presence of diluents, e.g. petrol ether, kerosene, benzene, xylene, or di-isopropyl ether. , The reaction may be effected at raised temperature under reflux or in a closed vessel. Basic substances to neutralize liberated hydrohalide acid may be present, or a catalyst such as sulphuric acid, perchloric acid, or ferric chloride may be used. In an example viscose yarn is treated under pressure with a solution of #-chlorpropionyl chloride in carbon tetrachloride and pyridine. The materials treated may be cotton fibres or yarns, or filaments or staple fibre yarns or fabrics of regenerated cellulose obtained from viscose, cuprammonium cellulose, or nitrocellulose. The tendency of the materials to crease may be reduced as a result of the treatment. The process of Specification 520,493 is excluded.
Patent GB-209557-A (GB)
Title: Improvements in locking devices for the bonnets of motor vehicles
IPC: E05B65/19
Filed: 1922-11-22
Abstract: 209,557. Watson, C., (Representative of Watson, A. E.). Nov. 22, 1922. Guarding against unauthorized use.- The bonnet is locked in the closed position by a lever D pivoted thereto and projecting through a slot therein, one end of the lever engaging an adjustable catch E fixed to the frame while the other end is held by the bolt c of a lock C, both the catch E and the bolt C being inside the bonnet. The catch is hinged so that it may be turned down out of the way when the bonnet is open.
Patent GB-760707-A (GB)
Title: Improvements relating to rubber footwear
Inventor: TUSA JOHN
IPC: B29D35/10
Filed: 1953-11-17
Abstract: 760,707. Boots &c. BRITISH BATA SHOE CO., Ltd. Nov. 17, 1954 [Nov. 17, 1953], No. 31876/53. Class 17 (2). In making rubber footwear an upper, comprising a fabric layer 7 and an outer vulcanizable rubber layer 8, is assembled on a hollow last 1, together with an upper insole comprising a porous textile fabric layer 6 bonded to a vulcanizable rubber layer 5 containing a sponging agent, a lower insole having a layer of fabric 3 between layers of vulcanizable rubber 4, a main sole 2, and a vulcanizable fixing strip 9. The various parts are secured together by vulcanizable rubber cement and the whole assembly is vulcanized in a boiler under internal heat and pressure ; the reaction of the last and the pressure of the expansion of the sponge rubber tending to form an integral whole of the component. In a kneeboot construction a layer of vulcanizable rubber containing a sponging agent may be interposed between the layers 7, 8.
Patent GB-255807-A (GB)
Title: Improvements in driving belts for use with v grooved pulleys
IPC: F16G5/18
Filed: 1925-12-17
Abstract: 255,807. Marcou, J. A. July 25, 1925, [Convention date]. Addition to 245,104. Belts; belt fastenings. - In linked V driving- belts of metal such as aluminium or light alloy, a projection 4 on each link 1 is hinged between cheeks 3 on the next by pins 6, which may be riveted, screwed, or formed as cotters and pass through a wear-resisting ring in the projection 4. Play between the cheeks and the projection permits lateral deformation of the belt, and washers of fibre &c., may be provided between the parts to prevent noise and wear. A connection between the ends of a belt may comprise a hook 11 and member 10, Fig. 5, with two pairs of lateral cheeks 3. Alternate links 10 of the kind shown in Fig. 5 may be connected by intermediate links 15 of flat plate form, and the ends of the links 10 may be shaped to fit together as shown in Fig. 7. The friction members may be so shaped that the joint pins lie nearer to the inner side of the belt and the angle of the V is greater than 45‹, as set out in the parent Specification. According to the Specification, as open to inspection under Sect. 91 (3) (a), the angle of the V need not be greater than 45‹. This subject-matter does not appear in the Specification as accepted.
Patent GB-1393051-A (GB)
Title: Pressure guide for use in ditch supporting assembly
IPC: E02D17/08
Filed: 1973-07-05
Abstract: 1393051 Trench shoring frames J KRINGS 5 July 1973 [4 Aug 1972 10 April 1973] 31988/ 73 Heading E1E A pressure guide for positioning at the end of a bracing member adapted to extend between a pair of trench shoring posts 1 comprises a frame 7, 8, a terminal-piece 6 for the bracing member mounted in the frame by pivot means 5 and elastically-deformable means such as coil springs 9 to resist horizontal misalignment of the member 6 relative to the post 1. The post may be of channel shape to receive the frame 7, 8 and the spring may constitute a leaf spring slidably mounted within the frame within the limits imposed by abutment stops, see Fig 3 (not shown).
Patent GB-875478-A (GB)
Title: Improvements in or relating to thermoelectric cooling devices
Inventor: BURY HARRY
IPC: F25B21/02
Filed: 1958-10-08
Abstract: 875,478. Refrigerating. GENERAL ELECTRIC CO. Ltd. Oct. 8, 1959 [Oct. 8, 1958], No. 32123/58. Class 29 The electric supply, to a thermoelectric cooling device 1 having heat exchange means 2 on its hot junctions cooled by ambient air, is controlled by a simmer switch 9, the period of energization of which can be varied by rotating a linear cam 13, the knob 14 of which co-operates with a scale 15 calibrated in ambient temperatures. At lower ambient temperatures, the setting is such that the time of current supply is shortest whereas at higher temperatures, say 80‹F, the supply is continuous.
Patent GB-768282-A (GB)
Title: Leaching uranium from sulphidic materials
Inventor: FORWARD FRANK ARTHUR
IPC: C22B60/02
Filed: 1954-11-08
Abstract: Uranium is extracted from uranium bearing materials by forming a slurry thereof in an aqueous medium with at least one of the group consisting of mineral sulphides and elemental sulphur in an amount sufficient to produce in the aqueous medium after oxidation, a pH less than 3 and heating the pulp produced to a temperature above 80 DEG C. in the presence of an oxygen bearing oxidizing gas and continuing the oxidation reaction to dissolve the uranium in the leach solution as uranyl sulphate and thereafter separting the leach solution from the undissolved residue.  The aqueous medium employed may be water or an acid aqueous sulphate solution such as recycled sulphate-sulphuric acid solution.  Uranium ores such as pitchblende, torbernite, metatorbernite, and autunite may be so treated and the required mineral sulphide may be associated naturally with such ores or added in the form of pyrite or pyrrhotites or as elemental sulphur.  Oxygen partial pressures are preferably from 5 to 10 lbs. per sq. inch and air, enriched or not with oxygen, pure oxygen, or oxygen containing gaseous diluents such as nitrogen may be employed. According to an example, an ore containing sulphur was ground and mixed with water and charged to an autoclave where it was heated to about 125 DEG C. in the presence of oxygen having a partial pressure of 30 p.s.i. under a total pressure of 45 lbs. gauge p.s.i.  The leach solution had a final pH of 1.4 and this was treated after separation from the undissolved residue with ammonia to raise the pH to 8 whereupon the uranium precipitated as ammonium diuranate, leaving a solution containing ammonium sulphate which may be recovered by evaporation.  In the preferred operation the leach solution from a previous operation is recycled to slurry a further batch of ore and thus the concentration of uranium can be increased before it is precipitated.  In a continuous operation, the pulp leaving the leaching stage is filtered and part of the leach solution is recycled to the leaching stage and part treated to recover uranium.  The ammonium uranate contaminated by coprecipitated hydroxides of Fe, Al and Mn, may be ignited to form impure U3O8 or purified by leaching with a carbonate solution to dissolve the uranium and separate it from iron, aluminium and manganese. Dissolution of the latter contaminants in the initial leaching may be minimized by leaching at 100-150 DEG C.
Patent GB-600234-A (GB)
Title: Improvements in or relating to interferometric gauges for linear dimensions
IPC: G01B9/02
Filed: 1945-11-28
Abstract: 600,234. Interferometers. BENDIX AVIATION CORPORATION. Nov. 28, 1945, No. 32197. Convention date, Dec. 16, 1944. [Class 97 (i)] [Also in Group XIX] An interferometric gauge, more particularly for internal gauging, comprises two optical flats 19, 21, to which are attached, respectively, calliper arms 76, 77, and a viewing system so arranged that the light reflected from the adjacent surfaces of the optical flats may be viewed in the eyepiece. The lower flat 21 is mounted in a holder 22 hinged to a base 17 by flexible metal plates 23, 24 clamped to the base by blocks 25, 26 and screws (Fig. 4). The upper flat 19 in a holder 44 is similarly hinged to a yoke member 41 clamped to the base 17. The yoke may be adjusted vertically by bolts 61, 62. A levelling optical flat 69 is adjustably mounted in the base 17 below the gauging flat 21. The upper and lower surfaces of the lower gauge flat 21 are formed at a small angle to allow interference fringes between the gauging flats and the levelling flat 69 and lower gauge flat 21 to be viewed separately by a slight adjustment of a support 10 for the viewing system. The calliper arms 76, 77 are rigidly attached to the carriers for the gauge flats, their free ends being provided with jewel points. The arm 77 is formed integral with the carrier 22 and is provided with a longitudinal slot in which the arm 76 is movable. The arm 76 is provided with a dovetail extension 83 held in position by cap screws 84 which bear against the carrier 44. In operation a plane table 18 is provided with a standard gauge fixture 100 with platform 104 on which rest two optical flats 105, 106 separated by standard blocks of the required size. The gauge 116 which is to be measured is placed in a suitable holder 117 seated on a mounting surface 101 which may be-levelled by screws 133, 134, 135. The holder is provided with eccentric buttons 125, 126, 127 rotation nf which moves the holder 117 to locate the gauge ring 116 with respect to the gauge arms. The difference in the number of fringes compared with the standard gives a measure of the diameter. A light source 1, comprising a gaseous tube connected to a transformer 2, is mounted in the end of a cylinder 11 adjustably supported by a bracket 12 carried by a crossbar 13. A lens 14 and inclined mirror 15 are arranged at the opposite end of the cylinder. The whole instrument may be housed in an airconditioned and temperature-controlled chamber of the type described in Specification 598,282.
Patent GB-1223260-A (GB)
Title: Method of and apparatus for making a yarn of interlaced filaments
Inventor: JACKSON FRANCIS EDWARD
IPC: D02J1/08
Filed: 1967-07-13
Abstract: 1,223,260. Spinning and finishing yarns. NELSONS SILK Ltd. 12 July, 1968 [13 July, 1967], No. 32230/67. Heading D1F. A running multifilament bundle is formed into a continuously interlaced yarn by plucking the bundle at intervals of at most 5 cms (of bundle length) whilst under a tension sufficient to prevent development of crunodal loops in the filaments. The interlacing action may be augmented (and perhaps heat treatments effected) by lateral passage of the bundle into and out of contact with a fluid e.g. air, nitrogen, carbon dioxide, steam or water, jet. Acceptable rates of plucking e.g. 10,000 per minute, may be achieved in conventional ring- or cap-spinning equipment wherein the running bundle generates a "balloon" near the apex, and in the path, of which the bundle is intermittently drawn across, say two, plectra, formed by angled plates embodied in a combined guide and jet apparatus, and diverted inwardly of the bundle path thereby before being released to resume such path.
Patent GB-1069763-A (GB)
Title: Apparatus for generating electrical signals representative of characters to be displayed or printed
Inventor: EVANS WILLIAM EVAN
IPC: G09G1/22
Filed: 1964-08-07
Abstract: 1,069,763. Alpha-numeric television system. A. B. DICK CO. Aug. 7, 1964, No. 32311/64. Heading H4F. The invention relates to a system, Fig. 3, in which video signals representative of selected characters are generated by a character generator 38, e.g. a monoscope tube as illustrated or an equivalent arrangement involving a cathoderay tube flying-spot scanner, and are applied to a reproducing system 44, e.g. a cathode-ray display tube as illustrated or a printing system. The characters are selected by indexing circuits 32 controlled by a data pulse' source 30 and are scanned by signals from a small raster generator 38. The reproducing system is scanned in a similar manner and the characters are positioned under the control of display format circuits 46. The sequence of operation from producing the word THE are illustrated in Fig. 1 (not shown). In accordance with the invention from a first aspect, position indicating lines 20, 22, 24, Fig. 2, are positioned a predetermined distance below the characters in the character generator and serve to produce signals by which the reproduced characters are correctly positioned vertically despite the inevitable errors which occur in the positioning of the raster in the character generator. To. this end, the horizontal (slow) scan of the reproducer is controller by the horizontal output of small raster generator 38 but the vertical (fast) scan is controlled by a separate generator 54 which is triggered by signals. due to lines 20, 22, 24. The video signal from the character generator is shown in Fig. 4 (not shown), where the normal video component (64) in each vertical line which represents the character is preceded by a signal (64A) due to the position indicating line. These signals are separated from'the video component by a gate 53; Fig. 2, which is controlled by a pulse 66 from a multivibrator 52 triggered by a pulse 68 obtained by differentiating in circuit 51 the vertical scan signal from generator 38, and is applied to trigger generator 54. Since signals (64A) always occur at a fixed time before the video components (64), the vertical scans in the reproducer are timed to align the characters accurately vertically. According to the invention from another aspect, Fig. 5, each character has its own individual position line which apart from indicating the correct vertical position as in Fig. 2 also indicates by its length and horizontal position the horizontal space and position to be assumed by the reproduced character. For this purpose the arrangement of Fig. 3 is modified as shown in Fig. 6 (not shown) so that the output of gate 53 controls both a vertical and a horizontal scanning generator. The vertical scan generator is controlled so as to position the character vertically as described above with reference to Fig. 3, whilst the horizontal scan generator is caused to operate only whilst the position indicating signals are being generated.