baber/WOPTO huggingface dataset:
Patent GB-1131602-A (GB)
Title: Variable speed drive unit
IPC: F16H9/16
Filed: 1966-02-01
Abstract: 1,131,602. Expanding pulley gear. PERMAX MOLINS PTY. Ltd. 1 Feb., 1966 [4 Feb., 1965], No. 4474/66. Heading F2D. In an expanding V-belt pulley gear, both pairs of conical flanges 10 and 10a move relatively axially on shafts 8, 8a in opposite directions for a ratio change by turning axially fixed nuts 33, connected together by a chain 36 and sprockets 35 and by a sprocket 37 and chain (not shown) to a hand wheel (not shown), on threaded spindles 32 which move a pair of transverselyslidable wedges 15 connected by spacer bars 19, which move the pulley flanges oppositely through pairs of freely axially movable interconnected wedges 15a and thrust bearings 26.
Patent GB-130685-A (GB)
Title: Improvements in and relating to Photographic Cameras.
Inventor: WILLIAMSON COLIN MARTIN
IPC: G03B17/26
Filed: 1918-03-14
Abstract: 130,685. Williamson, C. M. March 14, 1918. Cameras, roll-film, with connected action between shutter and changing- mechanism; aeronautical apparatus. -Relates to roil-film cameras of the type employed on aircraft for taking series of photographs; in these, a continuous film is passed with an intermittent travelling motion across the exposure aperture. According to the invention, the receiving spool is continuously rotated from the source of power while the rotation of the feeding spool is intermittent, a slipping clutch mechanism being interposed between the driving shaft and the receiving spool. The film 20 passes from the feeding spool 21 over rolls 22 and 16 to the receiving spool 1, which is driven from a continuouslydriven main shaft 7 connected by the gearing 8, 9, 11, 12 and a slipping clutch 14 to the receiving spool shaft 15. A pinion 23 fast with the roll 22 is in gear with a wheel 24 in one with the snail cam 25, which is adapted to engage during each revolution with a pawl 26 as shown: in this position the rotation of the roll 22, and therefore the movement of the film 20, is interrupted. The pawl 26 is moved out of engagement with the cam 25 to release the film after an exposure by the action of a carn 29, carried on the main shaft 7, upon an extension 27 of the pawl 26.
Patent GB-727234-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing devices
Inventor: MALBON HARRY
IPC: G11B5/004
Filed: 1951-02-23
Abstract: 727,234. Digital electric calculating apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 15, 1952 [Feb. 23, 1951], No. 4502/51. Class 106 (1). In a magnetic recording and reproducing device having a record medium providing a plurality of parallel and separate recording tracks thereon, each recording and/or reproducing head for each track comprises a physically independent structure mounted for sliding movement towards and away from the recording surface and resiliently urged towards the surface under control of an adjustable abutment. In the described embodiment a magnetic store for an electronic digital computing machine comprises a nickel-coated drum RC, Fig. 1, rotated by an internal electric motor EM. Four vertical pillars P supported by the baseplate B provide mounting surfaces for eight blocks MB, each of which is slotted to receive 32 individual recording/reproducing heads H for co-operation with the recording surface of the drum. The eight groups of heads are in staggered relationship so as to serve 256 tracks on the drum. Each recording/reproducing head comprises an end part 11, Figs. 2 and 3, having a transverse slot 15, enlarged by a circular section 16, for accommodating two pole-forming elements 18, 19 embedded in thermo-setting synthetic resin. The tip of the head is ground away to give the requisite flux gaps. The recording section of the head receives a single-turn energizing winding 21, while the reading section is provided with a pick-up winding 25 of two turns. Step-down input transformers TR are mounted close to the heads. Each head is mounted in a slot of one of the blocks MB, Fig. 2, with a compression spring 38 urging it towards the recording surface of the drum RC, and a sleeve 31 threaded on the stem 14 of the head providing for adjustment. The method of producing the heads, and tools for inserting the heads in the mounting blocks, are also described. Specifications 707,637, 717,113 and 727,307 are referred to.
Patent GB-1027912-A (GB)
Title: Improved yarn-furnishing devices for circular knitting machines
Inventor: WIDDOWSON ALBERT HENRY
IPC: D04B15/48
Filed: 1963-02-05
Abstract: 1,027,912. Knitting machines. WILDT MELLOR BROMLEY Ltd. Jan. 9, 1964 [Feb. 5, 1963], No. 4568/63. Heading D1C. A circular knitting machine comprises a positive yarn feed contrasting of one or two rotary components rigidly secured to a spindle 5 driven at a fixed speed by the knitting machine and two freely rotatable nip components whose axes are parallel to the spindle axis and which are mounted on levers and biased so as to engage and be driven by the or each rotary component so as to feed at least two yarns. As shown, Fig. 1, spindle 5 is mounted in a vertical bearing tube formed in a casting 1 having horizontal arms 1b, 1c, arm 1b being secured to the knitting machine. Spindle 5 has, at its lower end, a pinion 6, Fig. 2 (not shown) which meshes with the stems 7a of needles 7 and, at its upper end, two spaced discs 9,10, disc 9 being the larger. Discs 15 and 17 of the same sizes respectively as discs 10 and 9 are adjustably mounted on the ends of pivoted levers 12, 13 pivoted on arm lc and converted by a spring 18 to bias discs 15,17 against discs 9, 10. Yarn guides 20 on carriers 19, 21 guide yarns Y<SP>1</SP>,Y<SP>2</SP> between nips N<SP>1</SP>, N<SP>2</SP> between discs 15 and 19 and 17 and 10. A cam 22 fixed on a pivoted lever 23 is located between levers 12, 13 so that movement of the cam separates discs 15, 17 from discs 9, 10 to stop feeding of the yarns. In a modification, Fig. 3 (not shown), one large driven disc 9 is engaged by two smaller discs 15, 27 of the same size and in another arrangement, Fig. 4 (not shown), a second set of three discs, in which a small driven disc engages two large discs, is superimposed on the arrangement of Fig. 3, all the large discs and all the small discs being of the same size.
Patent GB-793452-A (GB)
Title: Improvements in breathing apparatus for use in aircraft
Inventor: YOUNG DAVID HERBERT
IPC: A62B13/00
Filed: 1955-02-16
Abstract: 793,452. Respiratory apparatus. KIDDE CO., Ltd., W. Feb. 16, 1956 [Feb. 16, 1955], No. 4584/55. Class 81 (2). [Also in Group XXIX] Multiple outlet breathing apparatus comprises a master regulator 33 which is connected to a high-pressure oxygen supply 31 and supplies oxygen to a multiple outlet distribution manifold 34 at an intermediate pressure of the order of 100 p.s.i., each outlet 35 of the distribution manifold 34 being connected to an individual face mask 38 and a slave regulator in the form of a reducing valve 37, the outlet pressures of the slave regulators being controlled by change in outlet pressure of the master regulator 33. The face masks 38 are connected to selfsealing outlets 35 and receive the oxygen through the reducing valves 37. The master regulator, Fig. 6, is provided with a cone-shaped valve member 61 controlled by a diaphragm 62. Sealed bellows 63 carry a thrust-member 64 which, as atmospheric pressure is reduced due to increased altitude, augments a control spring 65 in bearing on the diaphragm 62, the arrangement being such that the outlet pressure increases as atmospheric pressure decreases. The bellows 63 may be arranged to reduce the loading of the spring 65 as atmospheric pressure decreases. One form of reducing valve, Fig. 1, which gives a decreased mask pressure as the pressure in the manifold increases includes a valve head 5A which is on the inlet side of the valve and which is controlled by a diaphragm 2 exposed to the outlet pressure. In another form of reducing valve, Fig. 2, which gives an increased mask pressure with an increase of manifold pressure, the valve seat 21 is mounted on a diaphragm 22 and as manifold pressure increases moves away from the valve head 20 which is controlled by a diaphragm 16 on the outlet side of the valve. A venturi 24 which is closed by the valve seat 21 as manifold pressure increases allows outside air to be drawn into the outlet side of the valve through apertures 25 at lower altitudes. A release valve (see Group XXIX) which automatically opens when atmospheric pressure falls to a predetermined value, may be provided between the oxygen supply and the regulator 33. Such a release valve has an over-riding manual control.
Patent GB-853843-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K9/08
Filed: 1957-02-11
Abstract: 853,843. Electric incandescent lamps. LAMPE NORMA SOC. AUTO-LAMPE. Feb. 11, 1957 [Feb. 10, 1956], No. 4594 /57. Class 39(2). An electric incandescent lamp for use in a motor vehicle headlamp is provided with a base or cap whereby it may be mounted alternatively in reflectors of different focal lengths, with the filament at the focus of the reflector in each case, the cap, made of insulating material, being formed with peripheral steps providing ledges 3, 4 so that when the lamp is inserted through an opening at the apex of a reflector 1 of short focal length the edge 3<SP>1</SP> of a collar around the opening abuts against the faces of lugs 11, Fig. 2, provided on the ledge 3 and when inserted through an opening provided with a similar collar at the apex of a reflector 2 of greater focal length the edge 41 of the collar abuts against the faces of lugs 12 on the ledge 4. In addition, the base is formed with a lug C with clear sharply defined sides which determine the position of the lamp in a circumferential direction when inserted in the holder, whilst projections A and B upstanding from the ledges 3 and 4 respectively serve to centre the lamp when being inserted into the holder. As shown in Fig. 4, a main filament 23 is supported between leading-in wires 15, 17 and a minor filament 24 is connected between a leading-in wire 16 and a screen 25 supported by the leading -in wire 15. The wires 15-17 are sealed in a gas tight manner in the base-member 21 which is of moulded synthetic material and formed with an annular recess 6<SP>11</SP> into which the end of the neck 61 of the bulb 6 is sealed by means of an adhesive. A hollow cylindrical member S, which may be transparent is secured to the underside of the base 21 and surrounds the junction between the leading-in wires 15-17 and supply leads such as 13 connected thereto.
Patent GB-1461781-A (GB)
Title: Dispenser for sheet-like material
IPC: G03B42/04
Filed: 1973-01-30
Abstract: 1461781 Feeding sheets AGFA-GEVAERT 23 Jan 1974 [30 Jan 1973] 4656/73 Heading B8R Radiographic film sheets 11 are fed from a pile 10 by a suction device which is moved downwardly into engagement with the top sheet, is moved rearwardly and pivoted to bend the marginal portion of the top sheet, is moved upwardly away from the pile and then forwardly to present the sheet to take-up rollers. A cam surface 14 on the suction device engages an abutment 15 during the rearward movement causing the device to pivot about axis 16. The feeding device may be used to load the film sheets into a light-tight cassette. The cassette loading device is described in Specification 1,461,782 (Heading B8R).
Patent GB-910645-A (GB)
Title: Automatic electrical control systems for electro-plating devices
Inventor: PHELAN TERENCE KIERAN
IPC: C25D21/12
Filed: 1958-02-12
Abstract: 910,645. Automatic control of electroplating equipment. WALL Ltd., HOWARD. Feb. 9, 1959 [Feb. 12, 1958], No. 4669/58. Class 38 (4). In an electric retroactive control system for an apparatus for electrolytically treating the surface of an article in a bath of electrolyte, the voltage across the bath is controlled by a device responsive to a comparison between a voltage which is a function of the voltage across and current through the bath and the voltage across the bath. As shown, an electroplating bath 13, Fig. 1, is supplied from an A.C. supply through a variable-ratio transformer 11 and rectifier 12. A first grid of a pentode valve 17 is supplied with a direct voltage proportional to the plating current from a potentiometer 15 across a resistor 14, and a third grid is fed with a voltage proportional to the plating voltage from a potentiometer 16. A D.C. signal derived from the anode of the pentode, proportional to the ratio of the voltages applied to the first and third grids, is fed via a potentiometer 20 and summated with a pre-set voltage from a potentiometer 23 in an input to a comparator C. A second input to the comparator is derived from the plating voltage. A servomotor 26 is controlled by the comparator and mechanically drives a slider of the variable transformer 11 so as to tend to maintain equality between the inputs to the comparator. The inputs to the comparator C, Fig. 4, are sampled via contacts 51, 52 by a vibrator 63 and fed to a resistancecapacity coupled amplifier comprising triodes 49. Secondaries 55, 56 of a transformer 54 in the anode of the second stage of the amplifier feed grid-controlled rectifiers 57, 58. The grids of rectifiers 57, 58 are biased by secondary windings 65, 66 of a transformer T energizing the vibrator 63. The rectified signal from the triodes 57, 58 representing in magnitude and direction the out-of-balance between the comparator inputs is fed to the armature of the servomotor 26 positioning the slider of the variable transformer 11. In a modification, Fig. 3 (not shown), a constant voltage from a highfrequency source is injected in series with the plating bath and the high-frequency voltage across the bath, which is a function of the resistance of the bath, is amplified and rectified and applied as an input to the comparator.
Patent GB-1218271-A (GB)
Title: Process and apparatus for wash-and-wear finishing of textiles
IPC: D06B19/00
Filed: 1968-01-30
Abstract: 1,218,271. Treating cellulosic materials; steam treatment; finishing fabrics. ARTOS DR. ING. MEIER-WINDHORST K.G. 30 Jan., 1968 [31 Jan., 1967], No. 4675/68. Headings D1L; DIP and D1S. A continuous process for the creaseless, non- iron, permanent shrinkage or water repellent finishing of woven fabrics, knitted goods or fibre fleeces of cellulose fibres comprises impregnating the material to be finished with at least one processing medium and subjecting the impregnated material to a combined steaming and drying treatment at a temperature up to 100‹C and then to a dry heat treatment in superheated steam at a constant temperature in the rough 140‹-170‹C, the steps subsequent to impregnation being carried out in such a manner that the moisture content of the material is continually decreased. The process may be carried out in an apparatus comprising an impregnating padder, a processing chamber having an insulated housing, a combined steaming and drying treatment zone and a dry heat treatment zone and means for continuously feeding the material through the padder and heating zones, the combined steaming and drying zone and dry heat treatment zone being provided with separate heating systems, e.g. heating cylinders, a circulating system with nozzles or heating suction drums. The material may be subjected to tensioning in the width during the treatment. Materials comprising blends of cellulose fibres and synthetic fibres may subsequently be heated to 180‹-200‹C to set the synthetic fibres and then subjected to a quick cooling-down to below 50‹C. In Fig. 2 the material 18 is passed from padder 22 to tentering machine inlet 23 and passed on tentering chains 21 through radiation predryer 17 to insulated housing 10 having at the inlet seal 15 and comprising a combined steaming and drying zone 11 and 12, heat treatment zone 13 and fibre heatsetting zone 14. A radiation shock-heating zone 16 is provided between combined steaming and drying zone 11 and 12 and heat treatment zone 13, and nozzle systems 24 connected with circulating devices are provided in heat-treatment zone 13 to adjust the temperature. After leaving the housing the material passes through cooling zone 19 and cutting device 20.
Patent GB-1000368-A (GB)
Title: Improvements in or relating to methods of impregnating porous metal
IPC: H01M4/28
Filed: 1963-02-05
Abstract: 1,000,368. Batteries. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Feb. 5, 1963 [Feb. 6, 1962], No. 4721/63. Drawings to Specification. Heading HIB. A metal hydroxide is introduced into a porous metal structure by precipitation from a solution of cadmium nitrate, nickel nitrate or cobalt nitrate, or from a solution of both cobalt and nickel nitrates, said solution containing sufficient free nitric acid to prevent premature hydroxide precipitation and cupric ions to inhibit the reduction of the nitrate ions present. The porous metal is sintered nickel, the cupric ions are present as cupric nitrate and the metal hydroxide is precipitated by the addition of an alkaline solution. The porous metal structure is the electrode of an alkaline nickel-cadmium storage battery. Specifications 331,540 and 487,607 are referred to.
Patent GB-1500751-A (GB)
Title: Hydrostatic extrusion process for producing fine gauge wires
IPC: B21C23/00
Filed: 1975-02-05
Abstract: 1500751 Extruding fine wire SUMITOMO ELECTRIC INDUSTRIES Ltd 5 Feb 1975 [6 Feb 1974] 4839/75 Heading B3P In a method of extruding fine wire having a diameter of less than 250 Á, a liquid having a viscosity (#) less than 100 poise at a pressure of 10,000 atmospheres and satisfying the following relation is employed: where V 2 = extruded wire speed; ho = spacing (half of internal diameter of pressure container); l=length of moving supply wire; Y= yield stress; R 2  = half of diameter of extruded wire; and R = extrusion ratio. The pressure medium may be gasolene, kerosene, lamp oil, glycerine and ethylene-glycol or castor oil and methanol. The wire extruded may be copper or aluminium and their alloys, gold, platinum or stainless steel and it is passed through a die having an approach angle greater than 35 degrees. The extrusion speed is greater than 200 m./min., preferably over 1000 m./min. and may be of the order of 6000 m./min.
Patent GB-179663-A (GB)
Title: Improvements in grabs, excavators and similar apparatus
IPC: B66C3/12
Filed: 1921-02-11
Abstract: 179,663. Richardson, H. Feb. 11, 1921. Grab-buckets.-A grab comprises a frame A with vertical guide-bars a for sliding blocks b, c, the upper block b being attached to the hoisting- chain H and the lower block c being connected by links d to the buckets. For closing the buckets and holding them closed while lifting, the two blocks are locked together by levers e on the lower block which project through a central opening in the upper block and may be spread apart by a weighted discharging-lever g pivoted on the upper block. When used as a double chain grab, a bell-crank lever l operated by a chain K, is provided on the grab head for actuating the lever g against the resistance of a spring, or the opening chain may be attached directly to the lever g for hand dumping. When used as a single-chain grab, the lever g is provided with a hook for engaging the suspension ring; a counterweight k holds the lever with the hook clear of the ring for lowering open grab. The singlechain-grab may be discharged by dumping; when the closed grab rests on the ground the upper block b is relieved of the weight, the lever g is freed from the grip of the members e, e and is turned by the weight k into the discharging position shown in chain lines in Fig. 1, so that the grab is free to open on hauling in the lifting chain grab may be discharged by dumping; when charged by a hand line attached to the lever g. The operation of closing the grab is the same whether operating on the single or double-chain principle. When the open grab is grounded the upper block b falls in the guides a, and passes over the members e, e. At the same time the weight k rests on the bottom of its guides, and the lever g is free to fall by gravity into the horizontal or locking position, where it is held by the grip of the members e, e as soon as the weight is taken by the upper block.
Patent GB-247986-A (GB)
Title: The manufacture of new complex antimony compounds
IPC: C07F9/90
Filed: 1926-02-19
Abstract: 247,986. Carpmael, W., (I.G. Farbenindustrie Akt.-Ges.). Feb. 19, 1926. Thioglycollates.-A complex antimony compound of thioglycollic acid is produced by interaction of the acid with a compound of pentavalent antimony and either allowing the product to crystallize or nentralizing it and then acidifying. The product may be converted into salts, two series of which are obtainable according to whether the reaction product is neutralized before or after its isolation. The salts obtained by neutralization of the products of interaction of antimony pentoxide or pentachloride with thioglycollic acid appear to be salts or an acid having the formula Sb(S.CH2.COOH)5; acidification of a solution of these salts does not liberate the said acid, but one formed by the splitting off of thioglycollic acid; this new acid is also obtained when the reaction product of antimony pentoxide and thioglycollic acid is allowed to crystallize, and yields salts with bases. Examples are given of the preparation of the acid and the soluble alkali and alkaline earth metal salts. The products possess pharmaceutical properties.
Patent GB-868311-A (GB)
Title: Improvements in or relating to brush making machines
Inventor: PARKER RUSSELL HENRY RICHARD
IPC: A46D3/04
Filed: 1958-02-14
Abstract: 868,311. Brush-making machines. EVANS & SON (PORTSMOUTH) Ltd., J. May 8, 1959 [Feb. 14, 1958], No. 4934/58. Class 19. The selection by a reciprocating picker bar 20 of bristles from one or the other of two juxtoposed compartments 6a, 6b holding the bristles is regulated by a finger 15 so rotatably mounted in the leading end of the dividing partition 3a between the two compartments that it can be swung across to close the exit of the compartment from which, at that moment, bristles are not to be obtained. The finger is rotated as required by a jack-actuated linkage 18, 19. Five preferred embodiments are described.
Patent GB-1283788-A (GB)
Title: Liquid handling apparatus
Inventor: RAY R A
IPC: G01N35/00
Filed: 1970-04-09
Abstract: 1283788 Liquid analysis; delivering samples BECKMAN INSTRUMENTS Inc 9 April 1970 [15 April 1969] 4945/72 Divided out of 1283786 Heading B1X [Also in Division Fl] The description is identical to that of Specification 1283786 but the claims are directed to the apparatus concerned with the delivery of the liquid sample to the analysis cell.
Patent GB-400827-A (GB)
Title: Improvements in and relating to locks
IPC: E05B67/10
Filed: 1933-02-18
Abstract: 400,827. Key &c. locks. GUY, E., Brightholmlee, Oughtibridge, near Sheffield, and PICKFORD, W. E., 139, Norfolk Street, Sheffield. Feb. 18, 1933, No. 5021. [Class 44.] A padlock comprises a hasp c notched within the casing d to be held by a pivoted tumbler g, and one or more fixed plates or stops e which have to be avoided by the key bit. A key, Fig. 6, for operating the lock is of the type described in Specification 23,418/92, [Class 44, Fastenings, Lock &c.], and is formed of a cylinder k<1> in which slides a spring-pressed sleeve s upon pressure being applied axially to the key. This sliding movement causes the hinge bit l<1> to be projected from within the sleeve s. The bit has one or more notches l<2> to avoid the plates or stops in the lock. The end of the bit may pass between two parallel plates e to engage the tumbler.