baber/WOPTO huggingface dataset:
Patent GB-490332-A (GB)
Title: Arrangements for measuring phase and/or frequency modulation of alternating currents
IPC: G01R29/06
Filed: 1937-09-14
Abstract: 490,332. Phase difference and frequency measurements. LORENZ AKT.- GES., C. Sept. 14, 1937, No. 24998. Convention date, Sept. 14, 1936. [Class 37] [Also in Group XL] A circuit arrangement for measuring phase and frequency modulations of an alternating- current, particularly unwanted interference modulations, consists of a bridge containing variable impedances, the phase-modulated voltage being connected across one diagonal and a constant voltage of the same frequency being connected across the other diagonal, each supply producing voltages that are cophasal and equipotential at the points of connection of the other, a current measuring or indicating device being connected across the arm c, b of the bridge. The bridge comprises capacitances 4 . . . 7, inductances 8, 9 and resistor 10, all of which are variable. An indicator or recording instrument 16 in circuit with a filter 15 receives a beat frequeney current that is rectified by valve 13 and is proportional to the phase modulation. Amplitude modulation can also be examined when the instrument 16 is an acoustic device. The leads 17 from the disturbed source 2 are preferably earthed on one side.
Patent GB-728375-A (GB)
Title: Improvements in heat-resistant alloys
IPC: C22C19/05
Filed: 1952-10-06
Abstract: A heat-resistant alloy consists of Cr 5-20 per cent, Al 0.5-5 per cent, Ti 0.5-3 per cent, Mo 0.5-10 per cent, B 0.0003-0.009 per cent, C 0.01-0.25 per cent, Zr 0.01-0.25 per cent, Fe 0-5 per cent, Mn 0-4 per cent, Si 0-2 per cent, Cu 0-2 per cent, Mg 0-0.1 per cent, Ni balance except for impurities and residual dioxidizers, the matrix hardening factor (Cr+ 2 Mo+Fe) being from 8 to 27.  The alloy may be heated at 1800-2200 DEG  F. for 1/4 -8 hours, air cooled or quenched and heated at 1200-1600 DEG  F. for at least 1 hour.  Impurities referred to comprise V, Ce, Pb, Bi, Te, S, Se, As, Sb, W, Nb and Co. The precipitation hardening factor (Al+Ti) is preferably 3.5 to 5. In an example, Ni and Cr are melted in an induction furnace and Mo added to the melt; C is then added as a 10-90 C-Cr master alloy; half the Al is then added, followed by Mg and Zr; the balance of the Al is then added, followed by Ti and finally B.  The alloys may be used for the blades of gas turbines and other parts of jet engines.
Patent GB-854746-A (GB)
Title: Improvements in or relating to golf clubs
IPC: A63B53/04
Filed: 1958-11-17
Abstract: 854,746. Golf-clubs. GARDEN, A. D. Nov 17, 1958, No. 25146/60 Divided out of 854,249 Class 132(2). An adjustable weight 3 is carried on a threaded bolt 4 screwing into the bottom of a recess 2 formed in the rear of the club-head 1.
Patent GB-540789-A (GB)
Title: Improvements in or connected with wind-power electrical generators
IPC: F03D7/02
Filed: 1940-09-09
Abstract: 540,789. Generators. ALEXANDER, J. H., KIRKPATRICK, W. J. H., and ARMSTRONG, G. Sept. 9, 1940, No. 25158/39. [Class 35] [Also in Groups XXVI and XXXVI] In order to keep the speed of a generator driven by a wind-driven propeller steady the generator and propeller are arranged to tip about a horizontal axis under pressure of the wind. The generator 4 and propellor 5 are mounted on a frame 13 pivoted at 12 to a yoke 11 an arm 2 rotating on a vertical pin 6 under the influence of a vane 3. An arm 17 carries a balance weight and acts as a damper for oscillations about the pivot 12 and the generator is normally held in the horizontal position by a spring 31. One terminal of the generator is connected to a lead 40 through a lead 21 and a brush bearing in a fixed slip ring 26; the other terminal is earthed through a lead 24 and a brush bearing on an earthed ring 27. In a modification the connections are made through contacting discs mounted on and insulated from the pivot pin 12.
Patent GB-252170-A (GB)
Abstract: 252,170. Giebe, E., and Scheibe, A. May 15, 1925, [Convention date]. Vibrations, indicating. -Elastic oscillations of a piezo-electric crystal are rendered visible by the luminous effect produced by the piezo-crystal voltages due to the deformation of the crystal. A rod Q of rock crystal aligned in the crystallographic sense and having a length of a few centimetres and a cross-section of a few square millimetres, is placed upon an electrode E2 so as to be freely movable thereon and an intermediate space is provided between the rod Q and a second electrode E1, this space being filled with rarefied air or with a gas other than air, which may be rarefied. If an alternating electromotive force having a frequency equal to the fundamental frequency of the elastic longitudinal oscillation of the crystal be applied to the electrodes E1, E2, stationary oscillations will be set up in the rod Q and a luminous effect produced on the rod due to ionization of the adjacent gas layer. If the frequency applied is an harmonic of the fundamental frequency, a plurality of luminous effects will be produced at points of the rod separated by dark intervals, the number of points at which the luminous effects are produced indicating the ordinal number of the higher frequency harmonic. Such an apparatus may be ployed as a frequency standard for wireless frequencies. A number of such rods graduated according to their fundamental and harmonic frequencies mav be combined in one apparatus to serve as a high-frequency wavemeter. More than two electrodes E1, E2 may be employed, and may be arranged in various combinations and connected to the source of alternating voltages in order to emphasize a certain higher frequency of the crystal rod and render the same visible. Besides the voltage-carrying electrodes, there may also be employed electrodes which are not connected to the source of alternating voltage, but merely serve to assist in the production of the luminous effects. In order to render the luminous effect more intense, the entire device may be enclosed in a vessel which is evacuated or filled with gases. Pointed or chemically prepared electrodes may be employed. One half of the rod only may be arranged between the electrodes. Transverse instead of longitudinal vibrations of the crystal may be employed when frequencies of a lower order than those employed in wireless telegraphy are to be measured.
Patent GB-904803-A (GB)
Title: Process for the manufacture of a waterproof cape
IPC: A41D3/08
Filed: 1960-07-20
Abstract: 904,803. Capes. SOC. INDUSTRIELLE DE LA CELLULOSE. July 20, 1960 [Aug. 18, 1959], No. 25248/60. Class 141. A waterproof cape comprises two superposed trapezium-shaped sheets of polyethylene &c. having their respective edges 6-8 heatsealed together and having an opening 10 cut in one side at the level of the wearer's face. A strap &c. may be attached to the cape for tightening the hood about the wearer's neck. A series of capes may be cut from a flattened tube of polyethylene &c., alternate trapeziums being arranged in opposite directions, Fig. 2 (not shown).
Patent GB-283627-A (GB)
Title: Improvements in or relating to signalling devices for use on motor and other vehicles
IPC: B60Q1/34
Filed: 1926-10-11
Abstract: 283,627. Richards, W. H. Oct. 11, 1926. No Patent granted (Sealing fee not paid). Road-traffic signals on vehicles.-An information-bearing cylinder 4 mounted on a rotatable spindle 5 is turned by a pointer 11 fixed to the spindle to display the information to front and rear through apertures 6, 7 in a fixed outer cylinder 1. A frame 8 containing red glass may be turned down over these apertures if desired. The pointer may have a contact to close circuit at the various signalling positions to illuminate a lamp 10 or it may carry a switch operated manually for the same purpose.
Patent GB-1533052-A (GB)
Title: Railway track tamping machine more particularly track tamping and levelling machine
IPC: E01B27/16
Filed: 1976-06-18
Abstract: 1533052 Railway track tamping machine FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIE GmbH 18 June 1976 [20 June 1975] 25295/76 Heading EIG In a track tamping-levelling-lining machine having a combined lifting and lining device 6, two twin spreading-tamping units 10, 12 for consolidating the ballast under adjacent sleepers, and a surface consolidating tool 28, both spreading-tamping tool pairs or groups of pairs spaced transversely of the track of each unit 10, 12 (e.g. 18, 19 and 20, 21 of unit 10) are supported on a common tool frame e.g. 8 and are connected to a common drive 9 for vertical adjustment. The second tamping unit 12 is slidable in the longitudinal direction of the track relative to the chassis along guides 14 and both tamping units 10, 12 can slide transversely to the longitudinal direction of the track. The details of the tamping tool heads are the same as those in Specification 1533051.
Patent GB-462467-A (GB)
Title: Improvements in cloth wringers
IPC: D06F45/00
Filed: 1935-09-12
Abstract: 462,467. Cloth wringers. KOBER, W. H. Sept. 12, 1935, No. 25311. [Class 19] A cloth wringer of the kind in which the cloth is drawn through an aperture in a disc of resilient material is provided with means disposed about or within the aperture, for increasing the pressure on the cloth. A rubber disc 3, Fig. 2, provided with an aperture 8 is secured between two apertured supports 4 and 5, and radial compression springs 9, secured at their outer ends by pins 10, press at their inner ends against the wall of the aperture. Alternatively, a round or elliptical spring 17, Fig. 5, may be secured within the material of the disc so as to surround the aperture. In another modification, the aperture is formed with a multiple screwthread whereby a cloth drawn through the aperture is twisted and compressed. The aperture may take the form of a slot or of radiating straight or curved cuts 14.
Patent GB-1501097-A (GB)
Title: Microswitch
IPC: H01H13/18
Filed: 1975-04-29
Abstract: 1501097 Switch actuators HONEYWELL Ltd 29 April 1975 [7 June 1974] 25362/74 Heading H1N A microswitch 114 has a one-piece plastics actuating lever 118 with a portion 118a adapted for push-on or snap fitting to the assembled switch casing as by pegs 122 engageable in slots A102. A V-notch 118c provides a flexible hinge connection for the actuating portion 118a of the lever which may be stiffened with a rib 118d. Reference has been directed by the Comptroller to Specification 1,404,309.
Patent GB-1506069-A (GB)
Title: Azo indole dyestuffs
IPC: C09B29/40
Filed: 1976-06-18
Abstract: 1506069 Azo indole dyestuffs BAYER AG 18 June 1976 [21 June 1975] 25379/76 Heading C4P Novel azo dyestuffs which are practically insoluble in water have the formula in which D is radical of a diazo component, R 1  is alkyl, R 2  is alkyl or aryl, or R 1  and R 2  conjointly represent the remaining members of a 5- or 6- membered isocyclic ring, R 3  is H or acyl, R 4  is H or alkyl, R 5  is H, or alkyl or aryl, and R 6  is H, halogen, alkyl or alkoxy. D may be a radical of the benzene, thiazole, benzthiazole, thiadiazole, triazole, pyrazole, indazole or thiophene series. The dyes are prepared by diazotization and coupling with an appropriate indole or acyl indole. They are used for dyeing synthetic fibre materials, especially polyamides and particularly polyesters such as polyethyleneterephthalate and poly-1,4- cyclohexane dimethyl terephthalate.
Patent GB-290890-A (GB)
Title: Improvement in manufacture of cement
IPC: C04B7/02
Filed: 1927-09-26
Abstract: 290,890. Marks, E. C. R., (International Cement Corporation). Sept. 26, 1927. Portland cement, processes for making. - A cement rich in combined lime is made by adding lime to normal cement clinker, preferably ground, and subjecting the mixture to one or more burning operations, the resulting clinker being then ground. Not more lime is added than is sufficient to saturate, the silica, alumina and iron.
Patent GB-1223887-A (GB)
Title: A synthesis of cycloserine
IPC: C07D261/04
Filed: 1968-05-28
Abstract: 1,223,887. Cycloserine. EPROVA A.G. 28 May, 1968 [26 June, 1967], No. 25388/68. Heading C2C. Cycloserine (D-4-amino-3-isoxazolidinone) is prepared from non-isolated D-α-amino-#-chloropropiohydroxamic acid obtained by reacting D-α-amino-#-chloropropionic acid ester with hydroxylamine, in aqueous solution, wherein the hydroxamic acid is completely cyclized at a constant pH-value of from 10 to 11 and preferably from 10À2 to 10À5, by the continuous addition of an alkali metal hydroxide, the resulting aqueous solution is then concentrated by evaporation in vacuo at a pH value of from 11 to 12, the alkali metal chloride is precipitated by the addition of a C 1-3  alcohol and separated, and finally cycloserine is liberated from its alkali metal salt by the careful addition of an acid up to a pH value of from 6À5 to 6À9, crystallized and then filtered off.
Patent GB-850989-A (GB)
Title: Terminal board for electric machines or devices
IPC: H02K5/22
Filed: 1958-08-07
Abstract: 850,989. Binding posts: terminal boards. REICH, E., and KOVATS, Z. Aug. 7, 1958, No. 25402/58. Class 38(1) In a terminal board which may be fixed on a three phase motor rectangularly bent and punched terminals 4 located between insulation ribs 2 carry cap-screws (5, 6) to secure wires 3 and 10 respectively. The terminals 4 are held in place by one end 15 bent so as to fit into a groove 16 of the base 1 and by the screws (5, 6) protruding into bore 11 and groove 7 respectively. A transverse wire 13, fits into a groove 12 to form the star-point of the 3-phase winding if required or a delta connection may be formed by connecting the extended ends of conductors 3 to the terminals UZ, VX, WY.
Patent GB-293604-A (GB)
Title: Improvements in and relating to bookbinding
IPC: B42D1/02
Filed: 1927-09-27
Abstract: 293,604. Newmarch, E. R. Sept. 27, 1927. Albums.-The leaves A of books such as albums, scrap-books, and books provided with Braille type, wherein provision is made for the thickness of the contents, are formed with integral binding guards by folding a sheet of paper along a central line and then folding it reversely along a scored line C on each side of the central fold and about half an inch from it, creases D being made in the leaves to conceal the guard. Pairs of guarded leaves A thus formed are assembled alternately with singly folded sheets E which are folded along their central line F, and in addition sheets of adhesive tissue may be interleaved within the folds of the guards of some or all of the leaves A, the whole being bound together by stapling or wire stitching. Before stapling, the assembled leaves may be provided with end papers consisting of single sheets of paper with reinforcing strips of cloth etc.; or the outer guards J of the outer leaves may be reinforced by inserting a layer of glue to secure the two thicknesses of paper together. Cover boards are glued to the edges of a wide strip of brown paper which is glued to the back of the book but is unattached at the margins adjacent to the back, and the back and cover boards are then provided with a sheet of covering material such as cloth or the like which is folded over the edges of the boards.
Patent GB-359627-A (GB)
Title: Improvements in and relating to the twisting and winding of artificial filaments, threads or yarns
IPC: D01H1/40
Filed: 1930-08-26
Abstract: 359,627. Twisting artificial silk. CELLULOSE ACETATE SILK CO., Ltd., Caton Road, Lancaster, and CURTIS, H. C., Abington, Royds Avenue, Morecambe, Lancashire. Aug. 26, 1930, No. 25462. [Class 120 (ii).] T o facilitate the starting operations in twisting artificial filaments by ring and traveller apparatus, the end issuing from the spinning chamber or tube is collected in a tube 7 or bottle connected with a vacuum tank and threaded through the traveller and attached to the bobbin, whereupon it is broken and normal twisting and winding proceeds, the filament being guided round the godet 1 either before or after the threading of the traveller.
Patent GB-748156-A (GB)
Title: Improvements in or relating to the heat curing of rubber and rubber-like products
IPC: B29C35/02
Filed: 1953-09-15
Abstract: 748,156. Vulcanizing rubber. BENDIX AVIATION CORPORATION. Sept. 15, 1953 [Sept. 29, 1952], No. 25491/53. Class 70 A method of curing rubber and rubberlike material comprises injecting steam at a pressure only slightly in excess of the surrounding atmospheric pressure into a substantially cylindrical enclosure to expel the air therefrom, placing the material into the enclosure, further injecting steam and circulating it successively in a direction parallel to the axis of the enclosure over heated means located in an annular chamber provided within said enclosure, then over the material in the opposite direction in a vessel coaxial with said annular chamber. The atmosphere is preferably dry steam and the excess pressure about 2 ozs. per sq. inch. In a preferred apparatus an open-ended cylinder 18 on legs 17 is centrally disposed within a retort 10 which is closed at the bottom and is provided with a cover 11 at the top which is provided with a skirt 14 which' engages a sealing gasket 15 in a trough 16. The whole is heat insulated by layer 12 and is heated by an electrical resistance 20 or by steam coils. Dry steam enters by conduit 21, pressure being controlled by valve 22 and by exhaust valve 23. Fan 24 pulls gases through cylinder 18 in which the vulcanizable matter is contained in removable containers or trays. In an example applied to neoprene inserts for electrical connectors the moulded inserts were heated for 2¢ hours at 350‹F. at a pressure of 2 oz. per sq. inch above atmospheric pressure.
Patent GB-1177919-A (GB)
Title: Apparatus for Measuring High-Frequency Impedances
IPC: G01R27/02
Filed: 1968-05-28
Abstract: 1,177,919. Impedance-measuring apparatus. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES DIT O.N.E.R.A. 28 May, 1968 [9 June, 1967], No. 25502/68. Heading G4B. [Also in Division G1] An apparatus for determining high-frequency impedances comprises a Smith chart over which are movable, in a first embodiment, three rules each having one end pivoted at and movable along the circumference of the chart, and in a second embodiment three centrally-pivoted discs. First embodiment.-A plate 40, Figs. 3 and 4, having a Smith chart printed or etched thereon, is bounded by three rotatable rings 41 1 , 41 2 , and 41 3  carrying pins 42 1 , 42 2 , and 42 3  respectively, about which are pivoted at different heights transparent rules 43 1 , 43 2 , and 43 3  respectively. The rules have scales, graduated linearly or non-linearly in milliamperes, of a length equal to the diameter of the zeroresistance circle of the Smith chart. Second embodiment.-Three transparent discs 52 1 , 52 2 , and 52 3 , Fig. 6, each having a set of circles calibrated in milliamperes centred at a point on the circumference of each disc are rotatable above a Smith chart 50 about a central axle 51. The respective boundary circles of the discs are equal in size, and are superimposed on the zero-resistance circle of the Smith chart. The sets of circles are drawn in composite line, full line, and dotted line, respectively, and may be of different colours. Each disc has a peripheral lug (58 1 ), (58 2 ), (58 3 ), respectively (not shown).
Patent GB-269260-A (GB)
Title: Improvements in screw propeller blades
IPC: B64C11/20
Filed: 1925-10-13
Abstract: 269,260. Milner, H. L. Oct. 13, 1925. Screw propellers. - Screw propeller blades are constructed with longitudinals upon which a metal sheet is deposited electrolytically. The longitudinals may carry transverse ribs and are preferably of light deep cross-section. The longitudinals 2, 3 are recessed at intervals to carry ribs 5 and at the roots are bent to fit in a bush 6. The framework is placed in a mould, preferably touching the mould, and filled with a fusible or soluble material. On removal of the mould, the fusible material is coated with graphite or the like, and a thin skin of a metal such as nickel or copper is then electrolytically deposited thereon. If desired, the fusible or solid material may be removed by melting or otherwise. The mould is produced from a mould of plaster of paris which has been developed from a wooden template or model of the required blade form.
Patent GB-322749-A (GB)
Title: Improvements in the extraction of bituminous materials by means of solvents
IPC: C10G1/06
Filed: 1928-09-06
Abstract: 322,749. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 6, 1928. Mineral and tar oils, extracting.-Oils are extracted from bituminous materials or from the residues obtained in the destructive-hydrogenation of coal or shale, by means of the 80-150‹ C. fraction of the destructive-hydrogenation products of coal, tars, mineral oils, or like carbonaceous materials. Preferably the aromatic content of the solvent is increased, e.g. by treatment with hydrogen at high temperature and pressure, as described in Specifications 281,298 and 302,253, [both in Class 32, Distilling &c.], or by using only that portion soluble in liquid sulphur dioxide. The bituminous materials &c. may first be subjected to low-temperature carbonization, and the solvent may be mixed with alcohols, ketones, oil of turpentine, halogenated hydrocarbons, or other diluents or solvents. In an example, a residue containing 40 per cent solids and obtained by the destructive hydrogenation of lignite is treated in counter curent at 80-100‹ C. with an equal quantity of a product boiling mainly between 80-150‹ C. obtained by treating with a stream of hydrogen under pressure at 600‹ C. an oil obtained by destructively hydrogenating lignite.
Patent GB-518691-A (GB)
Title: Improvements in or relating to high-frequency alternating current heating arrangements
IPC: H05K9/00
Filed: 1938-09-02
Abstract: 518,691. Electric heating. PATENTVERWERTUNGS-GES. HERMES. Sept. 2, 1938. No. 25777. Convention date, Sept. 2, 1937. [Class 39 (iii)] In heating by means of a high frequency electric field, particularly for drying wood or paper, one electrode 3, Fig. 1, encloses the other electrode 2 or electrodes and the generator 1 of the high -frequency voltages. In a modification spherical electrodes are employed. The outer electrode may be apertured and in halves. Both electrodes may be wire lattices. In Fig. 3, electrode 3 encloses electrodes 2, 2<1> and the vacuum tube 1 to which the latter are connected. In Fig. 5 two generators are employed and a paper web passes continuously through the field over rollers 7, 8.
Patent GB-714268-A (GB)
Title: Improvements in or relating to automatic feeding arrangements for poultry batteries
IPC: A01K31/17
Filed: 1951-11-05
Abstract: 714,268. Poultry battery feeders. SHEPHERD & SONS, Ltd., J., and SHEPHERD, R. April 1, 1952 [Nov. 5, 1951], No. 25786/51. Class 5 (2) In poultry battery-cages, the feeding and drinking troughs are carried by a reciprocating trolley driven by a continuously-operating non-reversing chain or like means. The connection between the chain and the trolley permits a pause at the end of each traverse during which pause the drive is transferred to the other run of the chain for trolley travel in the opposite direction. Pins 31, 27 at opposite ends of a telescopic arm 28, 29 connect the chain 17 to a rhomboidal slotted plate 26 slidable in guides 25 secured to the trolley 12. At the end of its traverse, the trolley 12 is stopped by brackets 32. The arm 28, 31 is then fully extended and the slide 26, owing to its shape, clutched in the guides 25. Stopping of the trolley releases the slide 26 which travels on, while the arm 28, 29 pivots about the pin 27 and the pin 31 moves round to the other side of the sprocket 19. The pin 27 then moves to the other end of its slot and the return movement of the trolley begins. Connected to the trolley through a cable and pulley system 34, 34a-34h are scrapers each arranged to travel over the base 35, preferably of glass, below the reticulated floor of each row of cages. When the trolley reaches one end of its travel, it rocks an arm 41 connected to a tiltably-mounted tank 38 filled from a constantlyrunning tap. The water is thus tipped into an outer tank 39 from which pipes 40 discharge into the drinking troughs 14 on the trolley.