baber/WOPTO huggingface dataset:
Patent GB-993920-A (GB)
Title: Non-woven fibrous products
Inventor: COUZENS PETER JOHN
IPC: D04H1/54
Filed: 1963-03-25
Abstract: A non-woven film or paper-like fabric consists wholly of stereoregular polyolefine fibres at least 10% of which are undrawn and up to 90% of which are drawn, at least a proportion of the fibres being bonded together at the crossover points.  Suitable polyolefines include linear polyethylene, isotactic or syndistatic polymers of propylene, isobutylene or 4 methyl-pentene-1, or crystalline copolymers of olefines having a stereo-regular structure.  The drawn and undrawn fibres which may be of chemically different but structurally similar polyolefines may be blended, e.g. by carding, and the bath or web of fibres obtained is heated under pressure to a temperature 10-60 DEG C. below the melting point of the lowest melting component of the bath or web.  Pressing may be effected between heated platens or calender rolls to effect softening and bonding of the fibres of the batt. Transparent, translucent or opaque films or paper-like products may be obtained which are useful for packagings, wall-coverings, carpet backings, reinforcements for plastic articles, electrical insulation or apparel.  Prolonged exposure to moderately elevated temperatures produces no embrittlement of the films or fabrics produced.  It is stated that crimped fibres may be used but with little advantage as regards strength.
Patent GB-118054-A (GB)
IPC: C14B17/04
Abstract: 118,054. Reddaway & Co., F., and Muskett, J. Jan. 30, 1918. Rollers. - In rubber - covered rollers of the kind described in Specifications 2606/15 a n d 15001/15, wherein a metal core a is provided with a spiral winding of rubber tubing under fluid pressure, a wrapping c of canvas vulcanized to a rubber sleeve d being provided, the rubber tubing b is substantially square in cross-section having an arched roof, incurved sides, and a concave bottom, the bore coinciding with this shape. The ends of the canvas care secured by the double tapered ring f, the tapered collar e on the mandrel, and the clamping-ring h, a separate loose tapered ring g being provided to prevent injury to the end of the canvas when screwing home the clamping-ring.
Patent GB-117967-A (GB)
Title: Improvements in Telephone Receivers.
Inventor: MARR ALEXANDER
IPC: H04R13/02
Filed: 1917-08-18
Abstract: 117,967. Marr, A. Aug. 18, 1917. Receivers.-A telephone magnet of the ring or horse-shoe type is secured to its pole-pieces and in position in the casing by clamping means and screws which do not pass through the magnet, or by grubscrews which pass through the casing and enter the magnet only for a short distance. The flanges on the pole-pieces are secured to the pole-pieces by grooving both the pole-pieces and the holes in the flanges and filling the grooves with cement which acts as a key. In the arrangement shown in Fig. 1, a plate e, provided with a central opening f through which the pole-pieces c<1> pass, is placed over the magnet b and clamps the magnet b against the flanges c<2> of the pole-pieces c' and in position in the casing a by means of screws g which pass through the base of the casing and the flanges c<2> and screw into the plate e. In a modification shown in Figs. 3 and 4, the clamping in position of the magnet b and pole-pieces c<1> is effected by two plates e<3>, e<4> secured to a projection a<1> on the base of the casing a by screws g<1>. The ends of the plates bearing on the magnet b are bent in order that they may be resilient and their edges e<6> are cut obliquely to provide a large bearing area. In a modification, the plates e<3>, e<4> are replaced by a single plate. In the modification shown in Fig. 7, the magnet b is held in position by spring-clips e' secured to the base of the casing by screws g. In the modification shown in Fig. 8, the magnet b is held in position by grubscrews g<2> which pass through the side of the casing. The diaphragm m, Fig. 1, is mounted in the manner described in Specification 112,333. The flanges h, Fig. 3, on the pole-pieces c<1> are secured in position by grooving the sides of the pole-pieces and the holes in the flanges h and filling these grooves with cement h; or the flanges h may be secured to the pole-pieces c<1> in the manner described in Specification 1715/14.
Patent GB-1175155-A (GB)
Title: Battery Vehicle Control System
Inventor: GURWICZ DAVID
IPC: H02P7/282
Filed: 1967-03-14
Abstract: 1,175,155. Control of D.C. motors. SEVCON ENG. Ltd. 14 June, 1968 [14 March, 1967] No. 11881/67. Heading H2J. The armature 1 and field windings 5 of D.C. motor are connected in parallel to a D.C. source 3 and the windings 5 are controlled by a thyristor switching arrangement whose mark space ratio is determined by the setting of a mechanically movable member coupled to an adjustable resistor 19, by a feedback from the armature circuit acting to increase the field current upon increase of armature current (thereby giving the motor a series characteristic) and by a feedback from the source 3 acting to maintain the field current when the source voltage falls. The field controller comprises thyristors 6, 7 respectively controlled by relaxation oscillators 11, 12 and a commutating capacitor 8, the conduction period of thyristor 6 being determined by the values of members 24, 25, 26 controlling the turn-off thyristor 7 and the number of conducting periods in any given time being determined by the setting of resistor 19 which controls the firing instant of the thyristor 6. The feedback from the armature circuit comprises member 28...31, 33 so arranged that increase in armature current tends to turn-off transistor 28 and turn-on transistor 29, thus increasing the rate of charge of capacitor 18, the pulsing frequency of the oscillator 11 and the mean field current. The base of transistor 28 is biased from the source 3 via a potentiometer 32, so that a fall in source voltage also produces the above-described operation to maintain the mean field current and so prevent increase in armature current, further reduction in the source voltage and the consequent occurrence of a runaway condition. Control of the field current may be effected by varying the pulsing frequency of the oscillator 12 instead of the oscillator 11 or by varying the pulsing frequency of both of these oscillators.
Patent GB-1428471-A (GB)
Title: Photocopying apparatus
IPC: G03G15/11
Filed: 1973-03-13
Abstract: 1428471 Fixing apparatus CANON KK 13 March 1973 [28 March 1972] 11906/73 Heading G2H A copy 1 bearing a developed electrostatic image is dried by guiding it over a heating plate 5 within a sealed drying chamber 4, the copy 1 being transported through the chamber 4 and also urged against the plate 5 by one or more endless belts 42 driven around two rollers 40, 41. Preferably the belts 42 are of velvet or fur and seal the inlet and outlet openings 2, 11 of the chamber 4. A perforated aluminium pressure plate 43 is loosely mounted above the belts 42. In another embodiment, Fig. 3 (not shown), the use of a convex heating plate (50) obviates the need for a plate 43. In both embodiments, vapour driven off from the copy 1 is passed through an outlet 13 to a condenser (not shown).
Patent GB-1133841-A (GB)
Title: Production of phenylhydrazine
Inventor: KINDLER HUBERT
IPC: C07C241/02
Filed: 1966-03-18
Abstract: 1,133,841. Production of phenylhydrazine. BADISCHE ANILIN- & SODA-FABRIK A.G. 18 March, 1966 [20 March, 1965], No. 11918/66. Heading C2C. Phenylhydrazine or salts thereof are obtained by the reduction of phenyl diazonium salts by means of sulphurous acid or salts thereof in aqueous medium wherein the reaction is commenced at from - 5‹ to + 50‹ C. and substantially an alkali or alkaline earth metal hydrogen sulphite (i.e. which may contain sulphurous acid or sulphite) is used as reducing agent in at least a 30 mole per cent stoichiometric excess and the reaction is completed by maintaining the reaction mixture at a higher temperature in the range of from 10‹ to 150‹ C. The sulphite solution preferably does not contain more than 25 mole per cent of free sulphurous acid or 60 mole per cent of sulphite (based on hydrogen sulphite) and the reduction is completed by maintaining the reactive mixture at 10‹ to 150‹ C., optionally with the addition of a mineral acid. The process may be effected batchwise or continuously, in the latter case the sulphur dioxide liberated during the reaction being absorbed, e.g. in caustic soda solution, and the sulphite and hydrogen sulphite solution thus formed may be recycled.
Patent GB-736722-A (GB)
Title: Device for gathering used razor blades
IPC: B65D83/10
Filed: 1953-04-30
Abstract: 736,722. Razor blade container; packaging razor blades. KLAGGES, H. C. April 30, 1953 [May 2, 1952], No. 11994/53. Classes 18 and 94 (1). A pick-up device 10, Fig. 1, for gathering used razor blades has side walls 10a the inner surfaces of which are spaced apart a distance slightly less than the width of a blade, so that the blades are permanently held between them in a flexed condition. End walls 10h may be provided. Alternatively, the blades are gripped between projections on the inner surfaces of the side walls. In Fig. 10 a blade dispenser of the type comprising a chamber G1 for fresh blades and housing a leaf spring H, and including a slot through which the blades are fed, has side walls 100a between which used blades are gripped. Fig. 6 shows a method of gathering a used blade from a razor which consists in removing the razor top A, placing it with the blade B on a level surface, arranging the pick-up device over the blade, and then pressing down the device.
Patent GB-1011944-A (GB)
Title: Ball joints
Inventor: HARRIS DENNIS
IPC: F16C11/08
Filed: 1964-03-20
Abstract: 1,011,944. Ball joints. FORD MOTOR CO. Ltd. March 20, 1964, No. 11994/64. Heading E2F. In a ball joint for use on steering linkages and suspensions of motor vehicles, comprising a ball 13 seated in a socket member 11 and a slidable socket member 9, clearance due to wear between the joint members is taken up by means of fluid pressure through a one-way valve 33 or from a T-piece 35, Fig. 2 (not shown) acting through a chamber 31 upon the upper surface of the slidable socket member 9. The T-piece 35 is provided with a spring loaded one-way valve and an accumulator to assist in maintaining uniform pressure in the chamber 31. Although dispensable, a spring 27 is provided as a safety measure and to aid assembly. A gaiter 21 is provided as a dust cover.
Patent GB-980129-A (GB)
Title: Improvements in or relating to the production of polyamides
IPC: C08G69/20
Filed: 1963-03-26
Abstract: Lactams having at least 5 ring carbon atoms are polymerized in the presence of an anionic catalyst, and, as co-catalyst, a linear polyether of the formula X[(RO)nH]p where X is an hydroxyl, alkoxy, acyloxy, or sulphamido group of valency p or a polyalkylene oxide chain, each R represents an alkylene group, which may be the same or different throughout the molecule, n is an integer equal to or greater than 2 and p is a positive integer. Specified lactams are e -caprolactam, capryllactam and dodecanolactam.  Specified catalysts are sodium, potassium and organomagnesium complexes. Specified co-catalysts are triethylene glycol, polyethylene oxides, polypropylene oxides, polytetramethylene oxides and the condensation products of ethylene oxide with lauric alcohol, lauric acid, p-toluene sulphamide or polypropylene oxide.  Examples are given.
Patent GB-728792-A (GB)
Title: Improvements in or relating to means for showing on an instrument adjustable intended maximum and minimum values of a variable measured by the instrument
Inventor: FULTON DANIEL HAMILTON
IPC: G01L19/10
Filed: 1953-04-30
Abstract: 728,792. Indicating- apparatus; pressure gauges. DEWRANCE & CO., Ltd. April 30, 1954 [April 30, 1953], No. 12030/53. Classes 106 (2) and 106 (4). Means for showing adjustable intended maximum and minimum values of a variable measured by an instrument, comprises a bushing held to the cover glass or casing, a manually - operable spindle rotatable in the bushing, an indicator of each value both rotatable in relation to the bushing and operable by the spindle and both coupled with the spindle so as to enable one indicator to be set at any desired position within its range without disturbing the other indicator after the other has been set to any desired position within its range. The invention is shown embodied in a pressure gauge with operating shaft 2, pointer 3 and dial 4 in a case 1 with cover glass 5 spaced from the dial by a ring 6 held by a bezel 7. A bushing 8 is held in an aperture in the glass 5 coaxial with the shaft 2 by a threaded locking ring 11 with a fibre joint ring 12 between the ring and glass and distance washer 10 between the glass and a bushing shoulder 9. Pointers 13, 14 with eye-pieces 16, 17 are rotatably mounted on the bushing 8 and separated by a flange 15 thereof, uncontrolled movement of the pointers being prevented by spring washers 20, 21 provided between the eye-pieces 16, 17 and the washer 10 and an annular flange 18 at the inner end of an operating spindle 19, rotatable in the bushing 8. The flange 18 is urged against the inner face of the bushing 8 by a spring 22 between a friction washer 29 adjacent the outer face of the bushing and an operating knob 23 threaded on the spindle 19 and adjusted so that a frictional coupling is effected between the bushing 8 and flange 18 to prevent uncontrolled movement without hindering the desired manual operation. When adjusted the knob and spindle are united by soldering at 30. An arm 24 is mounted in a diametral groove formed in the face of the flanged end of the spindle 19 and extends radially beyond the periphery of the flange 18 to a point intermediate the length of the indicator 14 where the arm 24 is formed with a laterally extending part 25, which passes through an aperture 26 in the indicator 14 and extends past the indicator 13 towards the glass cover 5 so that the indicator 13 can be set and left undisturbed while the indicator 14 is set.
Patent GB-751655-A (GB)
Title: Improvements relating to filter elements for filters
IPC: F02M35/024
Filed: 1954-04-26
Abstract: 751,655. Gas filters. FRAM CORPORATION. April 26, 1954 [May 7, 1953], No. 12033/54. Class 8(2). One or both opposite ends of an annular radially pleated filter paper cartridge 21 are embedded in a closure 30 formed of a moulded resin e.g., vinyl or polyvinyl chloride and each said closure has an outwardly projecting integral gasket 33, 35. The latter bear against end plates of the filter casing, the cover 15 of which is lined with silencing material. The filter paper is supported by inner and outer metal screens 22, 23 the ends of which are also embedded in the closures 30.
Patent GB-644672-A (GB)
Title: Improvements in or relating to machines particularly adapted for delivering articlesof relatively greater length than width and of substantially straight longitudinal axis
IPC: B65G47/14
Filed: 1948-05-03
Abstract: 644,672. Hopper discharge. STEWART, I, F., ASHCROFT, D. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 3, 1948, No. 12068. [Class 78 (i)] Disc 31 rotates so that the grooves 33 formed in leading edges of its spokes 41 pass through slot 30 cut in hopper base 28 so that the articles are carried upwards in the groove and are then slid off and deflected into orifice 36 by plate 39 fixed in the end of the groove. The grooves 31 and plates 39 may be arranged on both sidefaces of disc 31 so as to discharge into two orifices 36. Several discs side-by-side may discharge from several hoppers as in Fig. 2.
Patent GB-527873-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines using liquid and gaseous fuel alternatively or simultaneously
IPC: F02B75/02
Filed: 1939-04-22
Abstract: 527,873. Engines using liquid or gaseous fuel. PURDAY, H. F. P., REBBECK, F. E., and McCALLUM, N. April 22, 1939, No. 12125. [Classes 7 (ii) and 7 (iii)] In a two-stroke engine working' with liquid-fuel injection and alternatively or simultaneously with gaseous fuel, the air-inlet and the exhaust ports are arranged at opposite ends of the cylinder to give uniflow scavenging. Fig. 1 shows an engine in which scavenging-air enters at A and exhaust takes place past a valve C, liquid fuel being introduced at F, and a valve for the admission of gaseous fuel being placed at D<1> or D<2> or between two air-inlet ports as at D When using gas only, the fuel valve F may be replaced by ignition means. In a modification, the air-inlet and exhaust ports are respectively controlled by opposed pistons in the same cylinder, at the side of which a gasadmission valve is arranged, either in connection with one of the fuel-injection valves, or with the air-inlet ports, or independently. Fig. 3 shows another engine in which the gas is admitted by a valve S<1> or S<2> either before or after the compressor V, to which air is admitted at T. In a multicylinder engine, there may be a separate compressor and gas valve to each cylinder.
Patent GB-290816-A (GB)
Title: Improvements in or relating to shoes and the effective lacing and close fitting of same round the ankles
IPC: A43C11/00
Filed: 1927-05-06
Abstract: 290,816. Barltrop, E. R., (trading as Tricker & Co., R. E.), and Webb, R. A. C. May 6, 1927. No Patent granted (Sealing fee not paid). Fastening.-A shoe of the kind having a tightening strap extending round the ankle is provided with a pair of straps A arranged between the upper and lining and secured at their rear ends B at points about one inch forward of the heel on either side. The front, eyeletted, ends C of the straps are brought through slits on the lining and engaged by the usual lacing. Reference has been directed by the Comptroller to Specifcation 285,105.
Patent GB-1367642-A (GB)
Title: Proximity alarm system
IPC: G08B13/26
Filed: 1971-07-01
Abstract: 1367642 Proximity detectors CRANE PRODUCTS MFG CO Inc 1 Aug 1971 [19 April 1971] 12201/74 Heading G1N The subject-matter of this Specification is substantially the same as that described in Specification 1367641 but the claims are concerned with a system which gives a warning when an object enters an electrostatic field comprising an antenna, means for controlling the sensitivity of the antenna, an amplifier and an oscillator operable in response to the amplified induced signal to provide an alarm signal, the system also including a power supply voltage regulator and specified testing facilities.
Patent GB-248311-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H04B1/22
Filed: 1925-05-11
Abstract: 248,311. Hazeltine Corporation, (Assignees of Hazeltine, L. A.). Feb. 27, 1925, [Convention date]. Transformers. - The construction of a radiofrequency transformer is shown in Fig. 2, the primary Lp is interspaced with a neutralizing coil Ln and placed adjacent the secondary Ls. In a modification, flat coils are employed for Ln, Lp and a multilayer coil for Ls, Lp being arranged between Ln and Ls. The Specification as open to inspection under Sect. 91 (3) (a) also gives a formula and a numerical example for the design of transformers to have a step-up value and an input conductance at resonance substantially higher than the plate conductance of the associated value. This subject-matter does not appear in the Specification as accepted. Specifications 222,895, 223,181, [both in Class 40 (v), Wireless signalling &c.], and 253,146 are referred to.
Patent GB-479505-A (GB)
Title: Improvements in and relating to electrical interrupters
IPC: H01H50/14
Filed: 1936-04-30
Abstract: 479,505. Converting. MALLORY PATENTS HOLDING CO., Ltd. April 30, 1936, No. 12289. Void. Convention date, June 14, 1935. [Class 38 (ii)] (Also in Groups XXXVII and XXXVI] In order to facilitate the changing of polarity of an electrical interrupter of the type disclosed in Specification 457,034, [Group XXXVII], such as an electromagnetically-vibrated interrupter used in a potential changer for supplying H.T. current in automobile radio receivers, the interrupter unit and base member are fitted with co-operating plug and socket members arranged to give different circuit connections for different relative positions of the interrupter unit and base. As shown in Figs. 1 and 2 the interrupter is contained within a metal casing 10 closed at its lower end with a cap 11 through which project a series of plug members 12-18. These members are connected as shown in Fig. 3, and co-operate with a series of sockets 22-28 on a base member connected to the battery 31 and tapped primary and secondary windings 37, 38. Sockets 26, 27 and 25, 28 are crossconnected so that if the interrupter unit is removed and replaced in the opposite position after turning through 180‹ connections to plugs 15, 16 are unaltered but connections through sockets 23, 24 to the secondary winding 38 of the transformer are reversed. The plug member 12 is made longer than the others so that the polarity change-over may be made without completely detaching it from its socket. This plug which forms the return path for the operating winding and the interrupter blade is bonded to the interrupter casing and engages an earthed socket. Other methods of connection are described, whereby the same results are obtained.
Patent GB-1119294-A (GB)
Title: A method and apparatus for forming a tobacco rod
Inventor: WILDE FRIEDRICH
IPC: A24C5/18
Filed: 1966-03-22
Abstract: 1,119,294. Feeding tobacco. TABAKUND INDUSTRIE MASCHINEN DRESDEN VEB. 22 March, 1966, No. 12434/66. Heading A2C. Apparatus for forming a continuous tobacco rod having dense portions at regular intervals therealong comprises a suction disc 1 having a groove 3 which is provided with depressions 4 for receiving a greater than normal amount of tobacco in the groove and a device 6 which compacts the tobacco to a uniform crosssection so that a denser portion of rod is formed at those places corresponding with the depressions 4. The tobacco is fed to the disc 1 by air through a feed pipe 2, is guided on the disc by a perforated belt 8, and is finally wrapped in a paper strip 5.
Patent GB-284902-A (GB)
Title: Improvements in exhibition and amusement towers
IPC: A63G31/14
Filed: 1927-05-09
Abstract: 284,902. Heinze, A. May 9, 1927. Spectacular exhibitions.-An exhibition tower is constructed with superposed tiers a - - e each tier having an outer platform f, some or all of which platforms are arranged to rotate. Parts k of the platforms may be stationary to serve as gangways, and glass roofs may be provided for the platforms. A luminous fountain o may surmount the tower and coloured lamps and artificial foliage may ornament the walls, while scenery may be arranged within the building. Further fountains may be placed on each tier.
Patent GB-1428261-A (GB)
Title: Method of attaching assembly to body
IPC: F16B37/00
Filed: 1973-03-15
Abstract: 1428261 Threaded fasteners ITT INDUSTRIES Inc 15 March 1973 [15 March 1972] 12451/73 Heading F2H  To attach an assembly, comprising a threaded bolt 1 and an annular plastics retaining device 5 having a plurality of spaced coplanar internal projections 6, to a body 7 the threaded shank 2 of the bolt is passed through a hole in the body until its enlarged head 2 abuts one side of the body, then the device 5 is passed along the shank until it abuts the other side of the body, the projections 6 engaging in the grooves of the thread. The device 5 may be pushed axially along the shank 2, the projections 6 riding over the thread, or threaded on to it. The bolt 1 which may also be of plastics, e.g. polycarbonate, may as shown, have an internally threaded head.