baber/WOPTO huggingface dataset:
Patent GB-405304-A (GB)
Title: Improvements in belts for personal wear
IPC: A44B11/28
Filed: 1932-07-04
Abstract: 405,304. Belts for personal wear. SHAPIRO, J., 388, West Street, Durban, South Africa. July 4, 1932, No. 18909. [Class 141.] A waist belt for personal wear comprises a band made of one piece of leather, fabric, or the like to one end of which is attached a member, such as a buckle loop 4, through which a second member 2, provided on the back so as to be invisible from the front with a hook, stud 7, or part of a press-stud fastener and secured to the other end of the belt, may be passed. The hook, stud 7, or press-stud fastener is engaged with one of a series of holes 6, buttonholes, or press-stud fasteners secured to or formed in one end of the belt.
Patent GB-1354986-A (GB)
Title: Inflation valve
IPC: F16K15/20
Filed: 1971-06-04
Abstract: 1354986 Inflation valves DUNLOP HOLDINGS Ltd 4 June 1971 [4 June 1970] 18918/71 Heading F2V A tyre inflation valve has a flexible diaphragm 3 gripped between a hollow stem 1 and a member 2 detachably secured thereto, the diaphragm being capable of flexing to allow air to flow through the stem when a pump is connected to the member 2. In the preferred embodiment, the member 2 is screwed on to the stem and the diaphragm is held in a recess 17 with one or more apertures 18 closed by contact of the diaphragm with a shoulder 16. Inflation pressure distorts the diaphragm to allow flow through the aperture which may be replaced by one or more inwardly extending slots or by removal of part of the diaphragm along a chord. Flanges 4, 5 and a rim nut (not shown) secure the stem to the inner tube and wheel rim respectively. The diaphragm may be of rubber with more than one aperture or slot and the stem and member 2 may be of brass or of Delrin or Maranyl (Registered Trade Marks).
Patent GB-666691-A (GB)
Title: Infinitely variable speed gear
IPC: F16H15/28
Filed: 1948-07-14
Abstract: 666,691. Variable-speed friction gearing. EBAUCHES AKT.-GES. July 14, 1948 [July 16, 1947], No. 18972/49. Class 80 (ii). Balls 6 engaging between cups 5, 5' carried by input and output shafts 3, 4 rotate by means of inwardly-directed stub axles about axes 7, which intersect at a common point on the axis of the shafts, in toothed segments 10 rotatably mounted in a stationary cage 12 by means of pins 11 the axes of which .pass through the centre of the balls. The segments 10 are in mesh with a common central rack 19 and one of the pins 11 is extended and geared to a control spindle 18. By turning this spindle, the segments 10 and therewith the balls 6 may be tilted to vary the speed ratio. Contact pressure is provided by springs 22 and camming balls 21. The shafts 3, 4 are. geared to elements 25, 28 of a differential gear, the third element 32 of which forms the final driven shaft. Alternatively, the rack 19 may be extended through shaft 3 or 4 so as to be reciprocable directly for adjusting the gear, Fig. 4 (not shown). According to the Specification as open to inspection under Sect. 91, two balls only may be used, the two toothed segments gearing directly with each other. This subject-matter does not appear in the Specification as accepted.
Patent GB-1113491-A (GB)
Title: Process for the preparation of perchloryl fluoride
IPC: C01B11/24
Filed: 1965-05-05
Abstract: ClO3F is prepared by reacting F2 with an aqueous solution of an inorganic chlorate at 0 DEG  to 75 DEG  C.  Preferably the aqueous solution contains 25-50% by weight NaClO3. F2 may be passed into a stirred chlorate solution or passed up a vertical packed tower in counter-current flow.  The evolved ClO3F gas may be scrubbed with 10-15% aq. KOH and 5% aq. Na2S2O3, dried with CaSo4, and liquefied b compression or condensed in a cold trap.  In large scale work the F2 is preferably used in less than the stoichiometric amount to ensure its complete reaction, the excess chlorate solution being recycled. Reference has been directed by the Comptroller to Specification 1,033,278.
Patent GB-311586-A (GB)
Title: Improvements in steam turbines
IPC: F01K7/18
Filed: 1928-06-30
Abstract: 311,586. Fairweather, H. G. C., (Allmõnna Svenska Elektriska Aktiebolaget). June 30, 1928. Regulating. - In a steam turbine 1 having chambers 8<1>, 8<2> connected to intermediate stages, so that auxiliary fluid may be supplied for overloading, or partlyused fluid may be extracted for use in other consumers, the chambers 8<1>, 8<2> and the main steam chambers 4 are completely closed relatively to one another, and are connected by separate pipe lines 15, 18, 5 to the admission conduit controlled by the main valve 6. The supply of auxiliary fluid through the pipes 15, 18 and the extraction of interstage fluid through the pipes 16. 19 is controlled by stop-valves 10, 13, 14, 17, 20. The arrangement of pipes may be modified. A valve 23 is opened automatically to discharge the steam remaining in the pipe lines after the closing of the main steam inlet valve 6.
Patent GB-458931-A (GB)
Title: Improvements in and relating to electric battery terminal connectors
IPC: H01R11/28
Filed: 1935-07-05
Abstract: 458,931. Fastenings. CLAUSEN, T., 1, Griffenfeldtsgade, and SCHMIDT, E., 7, Holtegade, both in Copenhagen. July 5, 1935, No. 19263. [Class 44] [See also Group XXXVI] A cable - end termina clamp for use with a bat tery lug is made up o two separate parts, one a body 1 carrying a resilient curved arm 3 and a rigid projection 5, and the othe a cam member 6 with a lever arm 7. The arm 3 fits round the battery lug and is compressed thereon by the cam 6 acting between it and the projection 5 and the cam 6 is tapered so that the compression of the arm 3 may be varied by varying the depth of insertion of the cam into the space between the arm 3 and' projection 5. A space 8 left between the arm 3 and the lever 7 in its closed position, admits a screwdriver or other tool for opening the clamp.
Patent GB-637013-A (GB)
Title: Improvements in or relating to assembly methods of small compact equipment
IPC: B23K1/00
Filed: 1946-06-28
Abstract: 637,013. Soldering; brazing; uniting by fusion. STANDARD TELEPHONES & CABLES, Ltd., ROBERTON, J. S. P., GRACE, B. B., MILLS, E., and GILLIVER, G. June 28, 1946, No. 19410. Drawings to Specification. [Class 83 (iv)] In a method of assembly of small compact equipment and light electrical equipment such as electromagnetic devices and electro-acoustic devices comprising parts liable to damage by heat, parts are fixed together by a soldering, brazing or welding operation comprising a highly localized electrical heating cycle for the joint area and the adjacent component or components are subjected to forced cooling during the heat cycle for the joint. In the embodiments described the coat fusing operation disclosed in Specification 584,934 is used, being described as rapid or ordinary coat fusing according to whether the time of heating is of the order of up to 1 to 2 seconds or over 5 seconds respectively. In a modification, closely adjacent connections are made by soldering, brazing or welding, at least the second operation comprising a rapid and highly localized electrical heating cycle for the joint area, with forced cooling of the first joint. In a further modification a second operation is carried out at a lower temperature than that required for a preceding closely adjacent joint with forced cooling of the first joint. In another modification successive joints are made by firstly ordinary coat fusing and secondly rapid coat fusing with forced cooling of the first joints. Specification 606,012 and 637,161, [both in Group XXXV], also are referred to.
Patent GB-1033001-A (GB)
Title: Electroacoustic transducers
IPC: H04M1/03
Filed: 1963-05-16
Abstract: 1,033,001. Electrostatic transducers. WESTERN ELECTRIC CO. Inc. May 16, 1963 [May 22, 1962], No. 19468/63. Heading H4J. An electrostatic transducer comprises two plane conductive electrodes 15, 16 between which a multi-layer permanently polarized diaphragm 10 is free to vibrate. In the telephone receiver described, brass electrodes 15, 16 having mutually aligned holes therein are restrained between rings 25, 26 by means of adjustment rings 17, 18 and rubber rings 20, 21 located in aluminium clamping members 11, 12 and the diaphragm is clamped at its periphery by the groove and socket arrangement 13, 14. The diaphragm which is of the type described in Specification 1,014,781, consists of several layers of polyethylene terephthalate at least one of which is coated with aluminium and it is prepolarized by supporting it between electrodes carrying a potential of 3500 volts and subjecting it to a temperature of 120 C. for 15 minutes after which the temperature is gradually reduced to room temperature. The resultant electret has a polarization equivalent to that produced by a 200 volt bias supply. The electrodes are fed from a push-pull signal source, the diaphragm being connected to a neutral point of the source. A suitable balanced circuit configuration (transformer/ capacitor bridge) is depicted in Fig. 4 (not shown). ). The use of such a transducer as a highfrequency tweeter is also discussed.
Patent GB-242720-A (GB)
Title: Improvements in and relating to pumps for injecting liquids
IPC: F02M59/02
Filed: 1924-08-16
Abstract: 242,720. Bryant, C. W., and Brotherhood, Ltd., P. Aug. 16, 1924. Crank-actuated pumps; oscillating-cylinder pumps; regulating delivery by opening and closing suction valves; valves and valve seats, arrangement of.-A constant-stroke pump comprises one or more cylinders 9 having pistons 12 connected to a common crank-pin 16 the time and arnount of delivery being determined by the angular position and length of one or more obturating members 19 mounted on the crank-pin and closing the inlets 14 to the cylinders. As shown, the pump is immersed in the liquid in a container 1 having an inlet 2, the cylinder 9 oscillates about a bearing 8 having an outlet channel 11, and the tubular piston 12 has a foot 15 held by a ring 20 on a sleeve 17 on the crank-pin 16. The inlet port 14 to the piston 12 is opened during part of each revolution of the crank 7 by a groove 18 around part of the sleeve 17 and is closed during the rest of the revolution by the solid part 19 between the ends of the groove. To allow adjustment of the time of delivery, the sleeve 17 may engage the crank-pin by means of fine serrations, and may be removed and replaced in the desired position. For adjustment of the amount delivered, the sleeve 17 may be in two relatively adjustable parts 21, 22, Fig. 4, enabling the effective length of the part 19 to he adjusted.
Patent GB-150886-A (GB)
Title: Means for securing railway, tramway, and like rails to sleepers
IPC: E01B9/32
Filed: 1919-08-07
Abstract: 150,886. Walker, C. T. Aug. 7, 1919. Sleepers. securing rails to.-A two-linked rail clip C of approximately horse-shoe configuration and circular cross-section is passed through apertures in the sleeper A and then rotated so as to engage over and under the rail B, a key or liner D being driven between the rail and clip. One end of the clip is splayed and flattened to afford greater bearing-surface for the key.
Patent GB-411310-A (GB)
Title: Improvements in and relating to gas fired water heaters
IPC: F24H9/20
Filed: 1933-07-10
Abstract: 411,310. Actuating valves. EWART, J. H., 26A, North Audley Street, London. July 10, 1933, No. 19542. [Class 135.] A control device for gas-fired water heaters of the kind in which the gas valve can only open or remain open if water is flowing through the heater and the pilot burner is alight, is arranged so that the pilot flame acts indirectly on the thermal element and means are provided for accelerating its cooling on extinction of the pilot flame. The gas valve 3 is carried by a pin 7 mounted in a bi-metallic strip 8 with a spring 9 interposed between them. The thermal strip is anchored to a block 10 acted on by the pilot flame and incorporated in the upper end of a tube 11, surrounding which is a water jacket 12 supplied with water flowing through the heater. A plunger 17 slidably mounted in a plug 19 is acted on by a spring 21 in the direction to close the valve, so that when no water is flowing the plunger engages the thermal strip to hold the valve closed even if the pilot flame is alight. When water is flowing a member in the water conduit acts through compound lever mechanism to withdraw the plunger and allow the thermal strip, when heated, to open the valve. The lever 15 forming part of the transmitting mechanism is pivoted in a rubber bush and has a reduced end passing through a slot in the plunger. The device acted on by the water may be constructed as described in Specification 411,276. Specification 411,274 also is referred to.
Patent GB-314442-A (GB)
Title: Improvements in and relating to electric remote control systems
Filed: 1929-06-27
Abstract: 314,442. British Thomson-Houston Co., Ltd., (Assignees of Bivens, M. E.). June 27, 1928, [Convention date]. Selective distant control systems and apparatus.-In a selective remote control or signalling system a relay 1 is selectively operated by discharge currents while a second discharge current produces a different operation. The Figure shows a receiver having an input 15 through differently tuned circuits 13, 14 to reciprocally coupled valves 5, 6 provided with an alternating current plate supply. The normal condition of the apparatus is such that the grid of one of the valves 5, 6 is more strongly negative than the other so that the receipt of the following signal, which is of the frequency of the tuned circuit associated with the valve having the negative grid, produces rectification and the increase in plate current through the anode resistance renders the grid of the other valve the more negative. The input of an amplifying valve 2 is connected across the resistances 9, 10 in series in the plate circuits of the valves 5, 6 or in a modification the differentially arranged coils of the control relay are arranged in the plate circuits of the valves 5, 6. Specification 246,466, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-1196745-A (GB)
Title: Improvements in or relating to Saw Blades.
Inventor: BANHOLZER ERWIN
IPC: B23D63/00
Filed: 1967-10-28
Abstract: 1,196,745. Sawing. E. BANHOLZER. 28 Oct., 1967 [18 March, l967], No. l9748/67. Heading B5L. A saw blade comprises heat formed teeth in which the face surface, back surface, or both these surfaces have enlargements 3, 7 from the tooth point to the tooth base extending outwardly from both sides of the plane of the saw blade. The teeth may be on a band, circular, frame or other saw blade and have a total width up to three times the thickness of the blade. The tooth point cutting edge may be straight, V-shaped, rounded or concave.
Patent GB-177107-A (GB)
Title: Improvements in indicators for scoring lawn tennis or like games, or for other purposes
IPC: A63B71/06
Filed: 1921-07-22
Abstract: 177,107. Wheeler, H. F. July 22, 1921. Scoring-apparatus.-A device for scoring lawntennis or for other purposes, has the points of the game and the numbers of the games inscribed on the sides of shanks operated by toothed or other wheels which project through slots in the face of the indicator. Shanks b, b, are inscribed on succeeding sides with 0, 15, 30, and 40, and are adapted to be turned against the action of a spring e, by toothed wheels c, Fig. 16, the teeth d of which project through the casing. Shanks f are inscribed 0, 1, 2 - - 7, and are rotated by wheels g against a plate spring k. The figures on the uppermost side of each shank are viewed through square apertures in the casing.
Patent GB-1284375-A (GB)
Title: Improvements in and relating to cement mixers
Inventor: WATSON HERBERT HENRY
IPC: B28C5/20
Filed: 1971-06-09
Abstract: 1284375 Concrete mixers H H & F G WATSON (PRIVATE) Ltd 9 June 1971 19771/71 Heading B1C A mixer has a horizontal fixed axis rotatable drum 11 with one closed end and one end with a charging and discharging port 16 served by a tilting shoot (17, Fig. 1, not shown). There are four inclined baffles spaced approximately 90‹ apart round the interior of the drum: a baffle 20 extending from end to end of the drum and in contact with its interior curved surface, and three baffles 21, 22, 23 inclined oppositely to baffle 20 and having their lower edges 26, 27, 28 spaced from the drum surface. Baffles 21, 23 extend to the closed end of the drum but do not reach the open end, while baffle 22 opposite baffle 20 is in contact with the open end but does not reach the closed end. If the shoot (17) be tilted from the charging to the discharging position in which it slopes downwardly from the port 16, the drum will be discharged by the baffle 20 while continuing to rotate in the mixing direction.
Patent GB-580839-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J5/40
Filed: 1943-03-19
Abstract: 580,839. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. March 19, 1943, No. 19849/45. Convention date, March 26, 1942. Divided out of 580,406. [Class 39 (i)] Electric discharge lamps comprise a tubular glass envelope 10 which is sealed at one end by a metal disc 12 carrying the contact pins 13 to which the electrode 11 is secured, and also having an exhaust tube 14 sealed through it. The other end of the envelope may be sealed with a similar disc without the exhaust tubulation. The discs may be strengthend by circularly embossing them as at 19. The contact pins are sealed into depressions 16, by glass beads 15, and the metal used is chosen so as to match the co-efficient of expansion of the glass of the envelope and seals.
Patent GB-824435-A (GB)
Title: Recording and reproducing arrangement using a single transducer head for multiple track records
IPC: G11B5/55
Filed: 1957-06-24
Abstract: 824,435. Magnetic data-storage apparatus. TELEREGISTER CORPORATION. June 24, 1957, No. 19858/57. Class 106 (1). In information storage apparatus comprising concentric record tracks on a rotatable carrier for magnetically storing information signals to be cyclically scanned, a transducer head is selectively moved into scanning relation with a desired track and a pick-up head is simultaneously moved into scanning relation with a corresponding cyclical source of timing pulses synchronized with respect to the pulses to be recorded on or reproduced from the selected record track. The storage device shown comprises magnetically coated discs 1, 2, &c., fixed to rotating shaft 3 which also drives, through worm gearing 5, 6 and a friction clutch, a shaft 8 to position head-carrying arms 18 through cam 10, slide rod 12 and lever 15 fixed to rock shaft 16. The shaft 8 is stopped in a selected angular position by a known form of selecting mechanism fixed to frame 21 and comprising twoposition notched code discs 40 which are selectively actuated by fingers 44, e.g. controlled by magnets (not shown) selectively energized in accordance with a teleprinter type code, so as to align notches opposite one of the differential stop pins 41. The pin thus selected is enabled to move radially inwards to engage arm 43 on shaft 8. The arms 18 (except the end arms 18a, 18b) each carry two heads 19 (not shown) and 20 which are associated with the disc on the left and right respectively, all the heads 19 registering with circular tracks of one radius on all discs, and all the heads 20 with tracks of a different radius, for each selected position. Data is recorded on the tracks in binary form with substantially uniform packing, whereby synchronizing pulses of different frequency are required for tracks of different radius. Such pulses are obtained from one of the heads 19 and one of 20 scanning permanent recordings on associated disc faces, and may be supplied to an electronic counter. The heads are connected through conductors 45 to gating and amplifier circuits (not described in detail). The cam 10 is preferably so designed that equal arcs of rotation cause corresponding equal arcs of movement of shaft 16. As a modification, the cam may be heart-shaped, one side of the heart selecting odd-numbered, and the other side even-numbered, tracks. An alternative form of selecting mechanism comprising internally notched code rings is referred to.
Patent GB-1420731-A (GB)
Title: Multisection electrolytic foil capacitor
IPC: H01G9/00
Filed: 1974-05-06
Abstract: 1420731 Electrolytic capacitors SPRAGUE ELECTRIC CO 6 May 1974 [7 May 1973 (2)] 19905/74 Heading H1M In a low impedance electrolytic capacitor assembly suitable for use as a filter, a terminal assembly includes conductive members 32, 34, separated by insulation 33, and a plurality of flattened roll capacitors 2 are located on either side thereof with the tail ends 12, 14 of the electrode foils welded at 36, 38 to one or other of members 32, 34, depending on their polarity, whereby the individual capacitors 20 are connected in parallel. As shown in Fig. 6, the conductive members, here bearing reference numerals 43, 44, are connected to, preferably formed integral with, two semi-circular conductive members 41, 42 which are coplanar and insulated from each other, and together constitute a closure member for the capacitor casing (Fig. 7, not shown). A peripheral gasket insulates the closure member from the conductive easing which in normal fashion is turned over on to the gasket. The outer surface of the closure member carries threaded terminals for making external connection. The electrode foils may be aluminium, and both foils may be etched and anodized to provide a non-polar assembly. The spacer may be paper or plastics and the electrolyte ethanolamine trifluoroacetate in dimethylformamide. The widths of the tail ends of the electrode foils may be less than their widths in the body of the roll (Fig. 7, not shown).
Patent GB-568005-A (GB)
Title: Improvements in or relating to printing devices for printing machines such as addressing machines
IPC: B41L47/02
Filed: 1943-11-29
Abstract: 568,005. Printing plates. JENNINGS, H. W. K. (Addressograph-Multigraph Corporation). Nov. 29, 1943, No. 19912. [Class 100 (ii)] [Also in Group XXII] A printing plate having embossed printing characters is provided along one or both of its longer edges with a flange which has one face lying below the adjacent face of the plate and has its free edge and corners rounded, the flange enabling the plate to be attached to a carrier frame for use in machines such as addressing machines. In one form, Fig. 4, the flanges 12 have parallel faces, one of which is flush with the back of the plate P, while in a second form, Fig. 11, the flanges 12b are inclined. Both constructions permit of greater spacing between the printing plane of the printing characters and the outer faces of the retaining devices LB, RD to minimize the possibility of an inked impression being made by the devices LB, RD if excessive printing pressure is used. The flanged plates may be used with ordinary carrier frames, as shown in Fig. 5, by embossing the characters from the opposite side of the plate. The free edges of the flanges may be straight or sinuous, and the flanges may be continuous from end to end of the plate or in the form of spaced short flange portions. The plates may be made from separate blanks or from a strip 5, Fig. 14, notches K defining the corners of the plates being provided in the opposite edges of the strip. The shorter ends of the blanks are provided adjacent the notches with inclined portions G so that, these edges, after the formation of the flanges by a rolling, stamping or extruding operation which causes the metal to flow longitudinally, shall be straight throughout. The blanks may also be made from a strip, the width of which is slightly greater than the finished length of the blanks to provide margins to facilitate feeding the strip through the metal-working machine. The blanks may also be formed from a strip of a width equal to the width of the plates.