baber/WOPTO huggingface dataset:
Patent GB-334167-A (GB)
Title: Improvements in or relating to flexible shafting and to machines for the manufacture thereof
IPC: B21F17/00
Filed: 1929-02-26
Abstract: 334,167. Morin, L. H. Feb. 26, 1929. Shafting.-Flexible shafts of the kind on which wires are wound in one or more layers upon a core, which may subsequently be removed, are prevented from untwisting, when cut to length. by hammering comparatively lightly the surface of the last and, if desired, other layers, to give it a permanent set, a rotary hammer preferably being employed. In making the shaft, the core wire 2, Fig. 1, may pass through rotary winding- heads 5 each of which adds a coil of wire, a feeding-device 9 for drawing forward the completed shaft, a flexing-device 8, a retarding-device 7. and rotary hammering-means 6 which may be arranged to follow the application of each winding and to be thrown in and out of action as required by belt gearing 19. The machine parts, other than the means 6, may be constructed as described in Specification 334,168, [Class 83 (iv), Metals, Working]. The hammer 6 comprises dies 30, 31, Fig. 5, actuated by sliding blocks 32 and sliding in a head 28, Fig. 3, which is rotated to bring the blocks 32 successively into engagement with rollers 43 carried in a cage 41 in a stationary casing 22.
Patent GB-741241-A (GB)
Title: Improvements in design forming and attaching method
IPC: B26F1/40
Filed: 1953-03-06
Abstract: 741,241. Embossing. FRANKLIN, A. W. March 6, 1953, No. 6296/53. Class 100 (2). [Also in Groups XV, XVIII and XXII] A method of producing a composite article comprising a design of a first material, e.g. a metal, on a backing of a second material, e.g. a fibrous or plastic sheet, comprises feeding a strip of first material over a backing of second material, one of said materials having a thermosensitive adhesive coating at a side opposite the other material, and then cutting or punching the design from the first strip while heating the design and pressing it against the backing sheet to cause it to adhere thereto. The design may be purely decorative or may form a name plate or an electric circuit or inductance. A reciprocating gripper 9 feeds a strip S of metal, e.g. copper, coated on its underside with a heat and pressure-sensitive adhesive, over a backing plate 6 positioned on a bed 1. A punching head 2, heated by electric heating coils 4 and having V-shaped cutting edges 20, Fig. 6, 30, Fig. 10, then descends to punch out the desired pattern from the metal strip S and clinch it, at 12, Fig. 6, and at 35, Fig. 10, and adhere it to the backing plate 6. As the punching head is withdrawn the waste metal strip W comes away and is severed from the gripper 9 by a knife 10 attached to the head 2.
Patent GB-430192-A (GB)
Title: Improvements in and relating to means for supplying or dispensing liquids
IPC: B67D7/36
Filed: 1934-02-27
Abstract: 430,192. Dispensing petrol &c. FIRSTBROOK, H. T., 50A, Palace Road, Streatham, and WAYNE TANK & PUMP CO., Ltd., 42, Newlands Park, Sydenham, both in London. Feb. 27, 1934, No. 6375. [Class 116] An apparatus for intermittently dispensing petrol or other liquid in measured quantities comprises a pump 1 delivering liquid through an air separating chamber 3 and meter 14 to a rising pipe 34, from the highest point of which the liquid flows downwardly to a discharge nozzle, a valve 27 being located in the pipe line between the pump and the highest point reached by the liquid. The valve 27 is held normally within a cylinder 25 by a spring 29 until flow commences, whereupon the valve rises into an enlarged chamber 26 allowing liquid to pass. When the valve, (not shown), on the discharge nozzle is closed the valve 27 descends into the cylinder 25 and on the pump being stopped, further descent of the valve 27 takes place thus reducing the pressure in the pipe 34 and nozzle-connection to atmospheric and causing backward flow of liquid through the meter. The connection between the meter spindle 16 and the indicating shaft 20 is by way of a yoke 17 and bar 18 so that lost motion may occur. The indicating shaft is accordingly not actuated when the backward flow of liquid takes place after stopping the pump, nor is it actuated when the pump is started, until the delivery nozzle is opened. When the head of liquid in the system is great, a spring, (not shown), may be placed in the cylinder 25 to compensate for the pressure on the valve resulting from such head. The separating chamber 3 includes a weir 4 over which the liquid from the pump is delivered, and a leakoff 5 communicating with a chamber 6 in which a float 10 controls a valve 9 so that excess liquid collecting in the chamber 6 may be returned to the suction side of the pump. The chamber 6 is vented at 7. The meter 14 is described in Specification 348,301, [Group XXIX].
Patent GB-559051-A (GB)
Title: An improved manufacture of motor fuels
IPC: C10L1/00
Filed: 1942-05-12
Abstract: 559,051. Motor fuels. STANDARD OIL DEVELOPMENT CO. May 12, 1942, No. 6402. Convention date, March 27, 1941. [Class 91] High anti-knock motor fuels for spark-ignition engines comprise blends of a hydrocarbon fuel base of high A.S.T.M. octane rating, i.e. of at least 65 and preferably of at least 75, with primary or secondary isobutyl or isoamyl amines in sufficient proportion to raise the octane ratings, such as at least 1 per cent. by volume and preferably 5 to 20 per cent. by volume. Leaded blends are preferred, tetraethyl lead being preferably used in the proportion of ¢ to 3c.c. per gallon. The octane rating is raised to that required for aviation fuels, i.e. 80 to 100 or higher. Other usual additives may be incorporated in the blends, such as lubricants, gumfluxing agents, thickening agents, dyes, corrosion inhibitors, stabilizers, and gum inhibitors. The fuel base may comprise hydrocarbons of good anti-knock properties, such as alkylated benzenes or isoparaffins. Specification 339,637, [Class 91], is referred to.
Patent GB-766973-A (GB)
Title: An asynchronous high-speed electric motor
IPC: H02K17/16
Filed: 1955-03-04
Abstract: 766,973. Induction motors. OBERG & CO., AKTIEBOLAG, C. O. March 4, 1955 [May 15, 1954; Dec. 18, 1954], No. 6409/55. Class 35. A squirrel-cage motor for a high-speed hand tool has its rotor conductors 2 soldered at their ends to short-circuiting members 3, 4 to which end shafts are directly attached. The conductors may be of beryllium copper or some of them of electrolyte copper and some of steel. The rotor core 2 may be laminated or iron powder in a synthetic resin. The end member 3 is formed with fan blades 5 and a frusto-conical hole 6 to receive the shaft of a chuck 20. In a modification, shown in Fig. 5, annular grooves 51 are provided in the end pieces 3, 4 and the bars 2 are introduced into axial holes in the end pieces 3, 4 after which solder is poured to form short-circuiting rings 61.
Patent GB-306911-A (GB)
Title: Improvements in cellulose acetate compositions
IPC: C08K5/12
Filed: 1929-02-27
Abstract: 306,911. Du Pont de Nemours & Co., E. I., (Assignees of Kramer, R. L.). Feb. 27, 1928, [Convention date]. Right to Patent relinquished. Coating-compositions.-Cellulose acetate compositions for use in making coated fabrics, artificial leather or the like are improved by including in the composition a softening agent of the formula RO.CH2.CH2.OAc, where R is a simple or substituted phenyl radical and As a carboxylic acid radical. Solvents, fillers, pigments, resins &c. may be included as desired. Suitable esters are phenoxyethyl phthalata and methylphenoxyethyl phthalate and laurate. Specification 251,3'03, [Class 95, Paints &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) covers the use of carboxylic acid esters of aryloxy ethanols generally, and states that esters of #-methylnaphthoxy ethanol may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-291538-A (GB)
Title: Improvements in orthopaedic beds
IPC: A61G13/00
Filed: 1927-03-09
Abstract: 291,538. Thomas, M. March 9, 1927. B e d - rests; adjustments. - In a bedstead having two independently adjustable leg-rests 12, the elongated rests are carried at their inner ends 21 by a girdle -iron 10, 11, and are supported towards their outer ends by members 19 adjustable on the frame 18. The rests may thus be adjusted vertically and also angularly. The head end of the bedstead may be vertically adjusted by means of the rod 6, tube 4 and a pin engaging holes 9. Specification 291,537, [Class 52 (iv), Upholstery &c.], is referred to.
Patent GB-1029223-A (GB)
Title: Preparation of polyolefins
IPC: C08F4/70
Filed: 1964-02-17
Abstract: A hydrogen shift polymerization of a  olefines such as ethylene and propylene is carried out in an inert solvent for a catalyst comprising vanadium tetrachloride iron acetyl acetonate and a group 1-3 organo metallic compound at a temperature between the freezing and boiling points of the solvent and pressure from atmospheric to 100 hg/sq. cm.  Solvents exemplified are hydrocarbons and halogenated hydrocarbons. The polymer may be a homo- or copolymer according to the conditions chosen, and the polymer may be fractionated by solvent extraction.ALSO:An olefine polymerization catalyst comprises vanadium tetrachloride, iron acetyl acetonate and an organometallic compound of a group I to III metal such as triethyl or tri-isobutyl aluminium, diethyl or di(m-butyl) aluminium chlorides, butyl sodium, butyl or ethyl lithium, diethyl zinc or dibutyl cadmium.
Patent GB-1298493-A (GB)
Title: Coating components
Inventor: HURST ALBERT
IPC: B05D1/28
Filed: 1970-05-13
Abstract: 1298493 Resistors; capacitors WELWYN ELECTRIC Ltd 19 April 1971 [13 May 1970 11 March 1971] 23185/70 and 6589/71 Headings H1M and HIS [Also in Division B2] A process for providing a protective coating to an electrical component having axially extending leads, is performed by locating the leads, 4, of a pre-heated component in recesses 20 or 25 in wheels 19, the component being prevented from falling out of the recesses by means of the plates 29. The wheels are rotated by means of a Geneva mechanism such that the wheels are held stationary for a period of time in one of two 180 degree separated angular positions, one position being as shown in Fig. 8. When in this position the component co-operates with a bobbin 15, 16 and a moving belt 17, the leads of the component coming into contact with the side walls of the bobbin and the body of the component being held against the belt by means of the spring loaded plate 30, the holding means for the component leads being such that the component rotates as the belt moves. The clearance between the body of the component and the sides and centre portions of the bobbin is made equal to the required thickness of the coating material, the side walls of the bobbin terminating in sharp edges to prevent the powder from coating the portions of the leads beyond the side walls. A predetermined quantity of powdered fusible coating material is placed on the belt and is carried towards the component. Powder guides 18, ensure that the powder remains on the belt and comes into contact with the component. The powder partly melts on contacting the heated component and becomes adhered to it. The spring loading of the belt 17  accommodates the increased diameter of the coated component. This increased diameter causes the clearance between the component and the bobbin to be taken up and results in the bobbin rotating due to friction. The rotating bobbin forms the powder coating into a smooth shape over the entire surface of the resistor. If a coating is required which conforms to the shape of the component the bobbin surface 15 may contain an increased diameter portion corresponding to smaller diameter portions such as 7 of the component so that a constant thickness coating is applied (Figs. 4 and 7, not shown). In an alternative embodiment (Figs. 1 and 3, not shown) the powder is placed in a U-shaped channel having sharp edges on the limbs of the U. The pre-heated component is placed with its leads in contact with the edges of the channel and is rotatably moved along the length of the channel and in the process carries into contact with the powder. The clearance between the body of the component and the channel is made equal to the required coating thickness, the rotation of the component resulting in a smooth coating being applied. After application of the coating by either of the above processes the coated component is heated further to cure the coating fully.
Patent GB-540379-A (GB)
Title: Electrical regulating apparatus
IPC: H02M7/06
Filed: 1940-04-12
Abstract: 540,379. Rectifying alternating current; automatic regulation. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. April 12, 1940, No. 6642. Convention date, Oct. 6, 1939. [Classes 38 (ii) and 38 (iv)]  The output voltage of a rectifier R is maintained constant under variations in load current or supply voltage by means of a saturable choke comprising a pair of parallel-connected windings P1, P2 in series with the primary or secondary of the supply transformer T. The windings are arranged on the outer limbs of a three-limbed core, and the control winding, which comprises a part in series with the load L and a part in series with the battery B, is arranged on the centre limb which is free from alternating flux. The arrangement is such that the part of the control winding in series with the battery B aids or opposes the part of the control winding in series with the load to effect saturation of the core according as to whether the output voltage of the rectifier is below or above the battery voltage. The battery also serves as a standby supply for the load. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the control winding is arranged on the two outer limbs of the core, the A.C. windings then being arranged to produce opposing fluxes. This subject-matter does not appear in the Specification as accepted.
Patent GB-782450-A (GB)
Title: Improvements relating to microwave power measuring systems
Inventor: CARLIN HERBERT J
IPC: H01P5/12
Filed: 1955-03-07
Abstract: 782,450. Microwave impedance networks. POLYTECHNIC INSTITUTE OF BROOKLYN. March 7, 1955, No. 6661/55. Glass 40 (8). [Also in Group XXXVI] Apparatus measuring microwave power comprising a main coaxial line connecting a power source to a load, a branch coaxial line connected to the main line, a probe section of reduced diameter carried by the centre conductor of the branch line to extend through an aperture in the outer conductor of the main line supported by a linear section of the centre conductor of enlarged cross-sectional area having a length small compared with the working wavelength and a diameter overlapping the aperture in the main line, and joined to the centre conductor by a short section of smaller diameter than the centre conductor; whereby the probe has coupling capacitance to the centre conductor and a shunt capacitance to the outer conductor giving an attenuation decreasing with frequency and the series attenuation of the branch line increases with frequency so that the output of the branch line applied to a bolometric power indicator means is independent of frequency. Fig. 1 shows a main coaxial transmission line 1 connected at la to a microwave power source and at 1b to a high power load 2 of broad frequency band width, which may comprise a coaxial section terminated in a short-circuiting plug 3 and filled immediately forward of the latter by a lossy plug 4 of tapered cross-section formed of plaster of Paris or like material mixed with finely-divided carbon. A probe line 5 extending at right-angles to the main line has its inner conductor 5a (Fig. 2) extended through a neck and a thin conducting disc 6a to a probe 6, passing through aperture 1c of the outer wall of the main line and coupled by its capacitance to the inner conductor thereof. Disc 6a and the neck are enclosed in a two-part dielectric shield 7, 7a which locates the probe and increases the capacitance between the disc and the outer wall. A buffer-equalizer attenuator element 8, which may comprise a high resistance metallized glass tube of the kind described in Specification 643,494, [Group II], in series with the inner conductor is connected between the probe and a known bolometric power measuring device 9. The capacitances constitute with the probe inductance a potentiometer (Fig. 3, not shown) whereby a known fraction of the power in the main line is tapped off for measurement by the bolometer while the buffer attenuator connects the high impedance mismatch between the probe and the line, and also compensates for variations of probe attenuation with frequency, so that the power in the main line is measurable over a wide frequency band. Design formulµ are given.
Patent GB-572703-A (GB)
Title: Improvements in or relating to metallic coatings on iron and steel
IPC: C23C10/42
Filed: 1941-05-24
Abstract: 572,703. Coating iron and steel. SAMUEL, R. L. May 24, 1941, No. 6669. [Class 82 (ii)] Chromium coatings are produced on iron and steel articles by heating the latter to 550- 1250‹ C., preferably between 700‹ C. and 1050‹ C., in an atmosphere of hydrogen or other inert gas with or in contact with an agent prepared by impregnating a porous heat-resisting substance with a solution of a highly-soluble sodium, potassium, or ammonium salt of chromium or of chromic acid and then reducing it by heating with a hydrogen halide at an elevated temperature. The porous heat-resisting substance may consist of fragments of porcelain, ceramic, pottery, earthenware or slag. In an example, dried fragments of ceramic were poured into a hot saturated solution of potassium bichromate. After the solution had cooled, the impregnated ceramic was removed therefrom, dried and introduced into the heating chamber of a furnace and a stream of hydrogen at 850-950‹ C. passed through. Then a stream of hydrogen chloride at the same temperature was passed through the material resulting in the formation of a homogeneous layer containing complex chlorides of potassium and chromium. The. ceramic thus prepared was introduced into a furnace, together with a small proportion of carbon-free ferro-chromium and a number of small steel bolts. The furnace was then heated to 900‹ C. and hydrogen passed through at temperature for 3 hours. Instead of hydrogen, other inert gases such as acetylene or coal gas may be used. Specification 516,260 is referred to.
Patent GB-239556-A (GB)
Title: Improvements in the conversion of hydrocarbon oils into liquids of lower boiling point
IPC: C10G11/02
Filed: 1924-03-15
Abstract: 239,556. Forwood, G. F., and Taplay, J. G. March 15, 1924. H y d r o carbons, cracking. - In converting heavier into light hydrocarbons by passing them in vapour or spray form over heated animal or vegetable charcoal, the carbonaceous residue of mineral shale or carbon produced from mineral oils, together with a gas or vapour which produces hydrogen such as steam, ammonia or other compound of nitrogen, sulphuretted hydrogen, water gas, carbon monoxide hydrogen, nickel carbonyl, formic acid &c. A catalyst which activates or increases the activation of the carbon is added. Suitable catalysts are carbonates of sodium or potassium, metallic nickel, cobalt, aluminium or magnesium or oxides of these metals, silica gel, ferrous hydroxide gel, sulphide of iron or other adsorptive substance. The catalyst may be mixed with carbon or may be sprayed into it together with the oil. The treatment may be effected in a double retort A, B, the smaller part A of which only may be heated. The catalyst may be supplied to one or both of the parts. A valve H enables higher pressure to be obtained in the part A. Temperatures of 300-1000‹ C., and pressures above or below atmospheric may be used. The light vapours may be separated by condensation, washing with heavy oils or adsorption in activated carbon, silica gel, &c. The residual gases may be freed from sulphuretted hydrogen and carbon dioxide and passed again through the retort. Specification 185,624 is referred to.
Patent GB-454134-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B19/04
Filed: 1936-03-05
Abstract: 454,134. Photographic cameras. KODAK, Ltd., Kingsway, London.--(Assignees of Crumrine, C. W.; 333, State Street, Rochester, New York, U.S.A.) March 5, 1936, No. 6709. Convention date, April 30, 1935. [Class 98 (i)] The film-supporting frame in the focal plane of a roll film camera is adjustable so that it can be accurately positioned and then securely held in that position. The camera body 1, made of a mouldable composition has a removable back 2 and a lens board 5 supported by lazy tongs 6, 7. A separate rectangular exposure frame 12, with flanges 13 is mounted on the camera frame 11 and attached at one corner by a screw 23 and at the three other corners by securing screws 24, and locating screws 25. The frame 12 has a pair of lateral guide surfaces 15 that are slightly raised above the ends 16 to prevent scratching of the film. In adjusting the frame 12 to compensate for inaccuracies in the camera, the screws 24 are loosened and the screws 25 with flanges 34 are rotated to move the frame 12 to or away from the camera body 1. When the frame is in the required position, the securing screws 25 are tightened.
Patent GB-1277695-A (GB)
Title: Improvements relating to the production of ceramic sheets
IPC: B28B3/12
Filed: 1970-02-12
Abstract: 1277695 Moulding ceramic sheets INTERNATIONAL BUSINESS MACHINES CORP 12 Feb 1970 [26 Feb 1969] 6739/70 Heading B5A Ceramic sheets having zero shrinkage anisotropy after firing are made by moulding a green sheet from a ceramic slip, rolling the green sheet and then firing it. The moulded green sheet has a characteristic shrinkage anisotropy after firing which is opposite to that induced into the sheet by the rolling so that by controlling the anisotropy introduced by the rolling, by varying the thickness reduction, a fired sheet having zero shrinkage anisotropy can be produced. In the particular example a ceramic sheet is cast by a doctor blade 2 upon a release film 3, the sheet having a shrinkage after firing in the process direction X smaller than that in the transverse direction Y. The green sheet is then rolled between roll pairs 10 and 11 and this introduces into the sheet a shrinkage after firing which is greater in the X direction than in the Y direction, the shrinkage anisotropy being proportional to the reduction in thickness of the sheet. By suitable spacing of the rolls, the two anisotropies can be made to combine such that a sheet exhibiting uniform shrinkage after firing is formed. In a second embodiment, the green sheet is formed by extrusion.