baber/WOPTO huggingface dataset:
Patent GB-233053-A (GB)
Title: Improvements in the methods of preventing self oscillation of the valve circuits in electron relays and in transformers therefor
IPC: H01F19/00
Filed: 1924-02-04
Abstract: 233,053. Rawsthorne, W. Feb. 4, 1924. Thermionic amplifiers.-In order to minimize self-oscillation in a multivalve high-frequency amplifier, the primary P, Fig. 4, of each coupling transformer is untuned, the inductance value being made sufficiently low to avoid the building-up of excessive voltage-variations on the plate of the preceding valve, whilst the secondary S is tuned to the signal frequency and has as large an inductance value as possible, so as to apply maximum voltage-variations to the grid of the succeeding valve. The parts A<1> and G<1>, Figs. 1 and 2, of the transformer windings subjected to a large high-frequency potential difference are separated as widely as possible. In the cylindrical form of winding shown in Fig. 1, the ends of the secondary are connected to the grid G<2> and biasing-battery GB respectively, whilst the primary terminals are joined to the valve-plate A<1> and the high-tension positive HTB. In the flat-wound form shown in Fig. 2 the primary winding P is located inside the secondary S, but this disposition may be reversed. In all cases, the length L of the windings is kept as small as possible compared with the mean diameter M.
Patent GB-226694-A (GB)
Title: Improvements in the method of and structure for storage
IPC: A47B61/00
Filed: 1924-02-04
Abstract: 226,694. Orcutt, T. W. Feb. 4, 1924. Warehouses; systems of storage.-A warehouse for storing furniture, clothing, and similar large articles, has hermetically sealed chambers capable of being partially exhausted of air so that organic life cannot be sustained therein. The chambers 6 are provided with hinged doors 7 provided with packing and adapted to be sealed by screws 16 and cross bars 15 supported in brackets on the sides of the door recesses. A portable vacuum pump 27, electrically operated, is connected to a valve chamber 23 in each compartment, a spring valve 31 allowing exhaust to occur. A gauge 20 is also fitted to each compartment. To restore atmospheric pressure before opening for inspection, a hand-wheel is adapted to be placed on the face of the valve casing and to engage the screwed end of the valve rod to withdraw the valve from its seat, air passing through channels 38 in the wheel to fill the chamber.
Patent GB-1011148-A (GB)
Title: Improvements in or relating to radio suppressed commutator motors
IPC: H04B15/02
Filed: 1964-07-09
Abstract: 1,011,148. Dynamo - electric machines. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 9, 1964 [July 11, 1963], No. 28356/64. Heading H2A. In a series commutator motor which may be adapted to run on a different supply voltage by cutting out part 5, 7 of the field winding by means of a switch 10, radio interference is suppressed by means of earthing condensers 3, 4 at each input terminal. More condensers 11, 12 are connected to the ends of the permanently connected parts 6, 8 of the field winding, and further condensers 13, 14 and 17 are connected at the brushes 15, 16. The brushes may be screened by metal platee 18, 19. The coil parts are concentric.
Patent GB-1153761-A (GB)
Title: Glass having a Coloured Zone whose Boundary has been Blurred and method of producing the same
IPC: B05B13/04
Filed: 1967-01-19
Abstract: 1,153,761. Coated glass. NIPPON SHEET GLASS CO. Ltd. 19 Jan., 1967 [24 Jan., 1966], No. 2965/67. Heading B2K. Glass has a coloured zone adjacent to an uncoloured zone, the boundary between the two being blurred, the coloured zone owing its colour to a thin fixed coating of a colour producing metal oxide, and there being extending along the boundary and partly into the zones on each side thereof, a further zone having a thin fixed coating of tin oxide or titanium oxide. The product is produced by applying to a localised zone of an uncoloured glass surface a thin coating of a solution of a metal compound which can be oxidised to a colour producing metal oxide, and applying to a furtherzone of the surface, extending along the boundary of the localised zone and partly into the zones on each side thereof, a thin coating cf a solution of a compound which can be oxidised to a tin oxide or titanium oxide, and by the action of heat, causing the oxidation of the compounds. The heat required to oxidize the compounds may be provided by heating the glass to a sufficiently high temperature, below its melting temperature, before or after applying the compounds. Examples of compounds for producing the zones are given. Solutions of the compounds may be applied by for example spraying or brushing. Coating of glass sheets e.g. automobile window panes, and vases is described.
Patent GB-865203-A (GB)
Title: Improvements in and relating to mixing machines more especially for chocolate masses
IPC: A23G1/10
Filed: 1960-01-27
Abstract: 865,203. Mixing machines. FRISSE, R., [trading as FRISSE MASCHINENFABRIK R.]. Jan. 27, 1960 [Jan. 29, 1959], No. 2987/60. Class 86 A double-trough batch mixer for crunching chocolate has shafts 3 carrying stirrers 3<SP>1</SP> angled to act on the mass in an axial direction. Rotatably mounted on each shaft 3 by means of hollow shafts. 7 is a pair of end scrapers 6 which are joined by curved longitudinal vanes 6<SP>1</SP>, 6<SP>11</SP>. The shafts 3 counter-rotate in such a direction that the impellers pass through the central space upwardly; while the hollow shafts 7 with scrapers 6 and vanes 6<SP>1</SP>, 6<SP>11</SP> rotate in a direction opposite to that of their associated shaft 3 so that the vanes pass through the central space downwardly. The vanes 6<SP>1</SP> pass closely over the impellers and direct the material radially outwards while the vanes 6<SP>11</SP>, which are set angularly behind the vanes 6<SP>1</SP>, scrape the container wall and direct the material radially inwards. The two sets of vanes are geared together and phased so that they pass consecutively through the central space. The trough is jacketed for heating purposes. The impellers have a diameter approximately equal to one-fifth of the horizontal width of the double trough at shaft level, and the shafts are arranged so that the impellers, the space between them and the spaces between the impellers and the trough walls form five zones of approximately equal width.
Patent GB-667284-A (GB)
Title: Vacuum tube oscillators
IPC: H03D11/02
Filed: 1949-02-03
Abstract: 667,284. Frequency modulation. MORLE, C. W. (philco Corporation). Feb. 3, 1949, No. 2994/49. Class 40 (v). An oscillator adapted to oscillate at two different frequencies comprises two valves 1, 2, a common tank circuit having a tapped inductance 4 and condensers 5, 6 forming Hartley and Colpitts oscillator circuits with valves 1 and 2 respectively, and resistors 12, 13 in the cathode circuits of the valves acting to alter the resonant frequency of the tank circuit and oscillation frequency when the respective valve is conducting and the other cut off. The tank circuit may be earthed as shown at one side. The oscillators may be used as super-regenerative amplifiers and detectors of frequency modulated signals derived from an aerial 3 inductively coupled to the tank circuit, each oscillator being quenched alternately by a quench input from an oscillator 16 applied in push-pull to grid resistors 7b, 8b of the valves, the resonant frequency of the tank circuit lying alternately on opposite sides of the mean frequency of the signal. The detected signal is derived in push-pull from the anodes of 27, circuits 28, 29 by-passing quench frequency. A resonant choke 11 provides a low impedance D.C. path in the cathode circuit of the Colpitts oscillator. U.S.A. Specification 2,351,193 is referred to.
Patent GB-342514-A (GB)
Title: Improvements relating to wringing machines
IPC: D06F45/00
Filed: 1930-01-29
Abstract: 342,514. Wringers. BARRACLOUGH, J. H., of Barracloughs, Ltd., John Street, Bradford, Yorkshire. Jan. 29, 1930, No. 3009. [Class 138 (ii).] In a wringer which is pivotally mounted on a tie-rod extending between two sides of a cabinet, means are provided to lock the machine in a vertical operative position and against longitudinal movement on the tie-rod. A bar H forming part of the wringer A, on to which the wringer is clamped at K, is formed with a groove L along its lower edge which engages the tie-rod F. Brackets M prevent separation of the groove and tie-rod. A bracket N is secured to one side of the cabinet and is provided with ears T and a bifurcated portion R pivoted at P. The shaft D of the lower roller rests in the bifurcated member R when the latter is raised as shown and holds the machine upright, whilst a locking bar U is inserted through registering apertures in the ears T and bar H to lock the machine and prevent longitudinal movement thereof. In a modification the bracket N is secured outside the cabinet rendering the locking bar U unnecessary, any oscillating or longitudinal movement of the wringer being prevented by the hand crank which is secured to the lower roller shaft projecting beyond the bracket.
Patent GB-879067-A (GB)
Title: A device for the sound-damping of gear motors driven by compressed air
IPC: F01C1/18
Filed: 1960-01-28
Abstract: 879,067. Exhaust silencers. DUSTERLOH FABRIK FUR BERGWERKSBEDARF G.m.b.H., G. Jan. 28, 1960 [Jan. 28, 1959], No. 3104/60. Class 7(2). [Also in Group XXVI] A gear motor has its casing wall 3 provided with at least one circumferentially extending slot 4 for noise reduction purposes. The depth h of the parallel faces of each slot is not more than the width b and the faces then diverge towards the exit chamber 5. In another embodiment, Figs. 2, 3 (not shown), the slots a are formed between end faces of the rotors and bearing shields 19, 191, 20, 20<SP>1</SP> respectively, and apertures 22, 221, 23, 231 are formed in the casing wall adjacent the slots.
Patent GB-524466-A (GB)
Title: Method of manufacturing flavouring for alimentary products
IPC: A23L27/24
Filed: 1939-01-30
Abstract: 524,466. Flavouring materials; lipolysed fats. REDDIE, L. N. (Girdler Corporation). Jan. 30, 1939, No. 3180. [Class 91] Material for imparting a butter-like flavour to edible products is obtained by subjecting aqueous material containing butter fat to lipolysis to develop the desired proportion of free fatty acid therein, and separating the substantially non-aqueous constituents which are the desired flavouring. Materials treated include whole milk, cream, and butter-fat emulsions : lipolysis may be effected by bacteria but preferably by lipolytic enzymes e.g., 0.50-0.20 per cent. of lipase or steapsin. Edible products flavoured include chocolate, confectionery, milk powders, margarine, bakery products, salad dressings, milk products used in making certain cheeses, shortenings and animal and vegetable oils and fats e.g., hydrogenated or natural soya, olive, castor, cottonseed, cocoanut, lard, and oleo-stearine. In an example, 325 lb. of cream containing 40 per cent. of butter fat is heated to 190‹F. to destroy bacteria, cooled to 103- 105‹F. and inoculated with 151 grains of steapsin dissolved in water ; the temperature is maintained until at the end of 22 hrs. the free fatty acid content is 13.1 per cent. calculated as oleic : the cream is then heated to 145-155‹F. in a closed container to kill the enzyme, and at a temperature above the M.P. of the butter fat e.g., 125-140‹F. is centrifuged to obtain the oil phase containing only 0.30 per cent. of water. It may be used in association with a carrier e.g., it may be atomized or sprayed on or otherwise incorporated in skim or whole milk powders or a stable edible oil; a suitable mixture is of equal parts of the oil product and cocoa-butter.
Patent GB-732850-A (GB)
Title: Improvements in or relating to rail vehicles
Inventor: KREISSIG ERNST
IPC: B61F5/46
Filed: 1953-02-05
Abstract: 732,850. Steering vehicles. WAGGONFABRIK UERDINGEN AKT.-GES. Feb. 5, 1953, No. 3283/53. Class 79(5). Pairs of running wheels 11 of a rail vehicle mounted on bogie frames 9 are interconnected by links 1 ... 5, a pair of links being individually articulated at 10 to each frame and being mutually articulated at 6 for limited horizontal angular displacement, the arrangement being stated to achieve the maintenance of the pairs of wheels radial to a curve. As shown in Fig. 5 each frame 9 is connected to the vehicle body 15 by springs 12, suspension spring links 13 and spring supports 14. The links 1 ... 5 may be pivoted above or below their associated axle. When the wheels are rotatably mounted on the axles, the latter may be cranked to permit lateral displacement of the links 1 ... 5 about their axes 6. The links 1, 5, are provided with .central couplings 8 for connection to adjacent vehicles.
Patent GB-114148-A (GB)
Title: Improvements in or relating to Variable Electric Resistances or Rheostats.
IPC: H01C10/20
Filed: 1918-02-25
Abstract: 114,148. Siemens & Halske Akt.-Ges. Feb. 15, 1917, [Convention date]. Resistances.-A pair of coils wound upon rings a, b, Fig. 3, are mounted concentrically by means of screws d, e and one or more distance - pieces f upon a bracket c, the arms of which form bearings for the rotary stem i of a brush-carrier s with a knob and pointer. In the. form shown, the laminated brush is in three parts, k, l for the coils and p for an inner ring contact for parallel connexion of the coils as indicated in Fig. 4. For series connexion, a double brush is used.
Patent GB-558035-A (GB)
Title: An improved hole-cutting tool
IPC: B23B51/04
Filed: 1942-03-12
Abstract: 558,035. Drills and cutters. PHILLIPS & POWIS AIRCRAFT, Ltd., and RESTALL, F. J. March 12, 1942, No. 3303. [Class 83 (iii)] A tool for cutting holes in plywood &c. having a pilot drill has means for retaining and ejecting the cut-out core. An annular cutter 4 with teeth 5 is formed at 6 for insertion in the tool chuck and contains a sliding ejector 7 in which the pilot drill 11 is soldered or otherwise secured. A grub screw 8 passes through a slot in the annular cutter to transmit rotation to the pilot drill and also projects into an annular groove 14 in a sleeve 10 that provides for actuating the ejector. The bore of the annular cutter may taper slightly so that the core forced in will be retained until the ejector is actuated.
Patent GB-795470-A (GB)
Title: Improvements in or relating to the production of moistureproof sheet wrapping materials
Inventor: GULLY ROBERT TERENCE
IPC: B29C43/22
Filed: 1955-02-04
Abstract: 795,470. Coating webs. BRITISH CELLOPHANE, Ltd. Feb. 1, 1956 [Feb. 4, 1955], No. 3334/55. Addition to 663,645. Drawings to Specification. Class 140. An improvement in or modification of the process described in the parent Specification in which the nip formed by the film surfaces is supported by two parallel rollers of which at least one of the rollers is a tyred roller, i.e. a roller a short axial length, not less than “ inch, at each end of which is formed to a diameter slightly greater than the barrel diameter. The tyres may be formed integral with the barrel, e.g. by forming the tyres first on a cylindrical grinder and then, without moving the assembly, grinding the barrel. They may also be formed of thin bands of e.g. brass or stainless steel rigidly secured, for example by an epoxy resin adhesive, to the ends of the roller or they may constitute rings of hard material such as steel secured concentrically by screws at each end of the roller. The rollers may be held in contact by pressure, e.g. spring pressure, applied to any convenient part of the roller, e.g. to the tyre of the tyred roller and to the journal of the plain roller. Guards may enclose the tyred portions of the rollers and dust may be excluded by rubber seals. Wiping pads or jets of compressed gas may remove any dust which penetrates the guards. The rollers may be driven so that the peripheral speeds of both barrels or so that the peripheral speeds of one barrel and of the tyre of the other roller correspond to the speed of travel of the film or one roller may be driven and the other rotated by the turning moment transmitted through the tyre or both rollers may be rotated by the turning moment exerted by the film.
Patent GB-549239-A (GB)
Title: Knitting method and machine
IPC: D04B9/10
Filed: 1941-03-13
Abstract: 549,239. Knitting machines. SCOTT & WILLIAMS, Inc. March 13, 1941, No. 3445. Convention date, Sept. 14, 1940. [Class 74 (ii)] Relates to knitting tuck-work mechanically. Needles are selected so as to fail to knit normal loops, while loose loops are formed in.the.vicinity by means in addition to the normal stitchforming elements. The invention is described as applied to circular machines with two coaxial needle cylinders and double-ended transferable needles. The lower sliders 8 are provided with . knitting butts 10, transfer butts 12 of various lengths and with selector butts 14, 16, 18 and 20. The top end of the slider 8 shown has also a laterally extending lug 30 for slacking off the yarn where tuck-work is desired, by acting on special shielding devices 26 associated with the sinkers 22. The devices 26 work in the same tricks and are operated by the same cams as the sinkers. The lugs 30 may act on butts 28 so that the devices 26 may be moved upwardly to slack off the yarn as shown. The outer corners 32 of the sinkers 22 are bevelled off. Specifications 411,300, 532,577 and 549,171 are referred to.
Patent GB-1247231-A (GB)
Title: A device for measuring wheel angles of motor vehicles
Inventor: ANDERSON CARL
IPC: G01B11/275
Filed: 1969-01-21
Abstract: 1,247,231. Measuring the inclination of vehicle wheels. H. P. ANDERSEN ENG. Ltd. Jan. 21, 1969, No.3445/69. Heading G2J. [Also in Division G1j A device for measuring wheel angles of vehicles comprises a light projector and a mirror 44 to deflect light from the projector on to a scale screen 58 on a housing enclosing the projector and mirror, the mirror being supported in a pendular manner, the housing being supported on a mounting means which is pivotable about an axis B aligned with the wheel axis, and the housing being pivotable about an axis C so that its longitudinal axis may be parallel or normal to the axis B. The projector comprises a lamp 38, having a V-shaped filament, and a lens 40 mounted on an arm 30 pivotable about axis 32, and the mirror is supported by an axle 46 so that its face is normal to the longitudinal axis of the housing. The mounting means comprises an arm 14 having a bracket 16 with a sleeve 18 for mounting the device on the wheel and which defies the axis B, the housing being mounted on an arm 22 normal to arm 14. One end of a bell crank lever 66 pivotable about an axle 68 projects through a slot in the housing while the other end 72 engages the underside of arm 30 so that the projector may be tilted by displacing the lever 66, a notch (70) being provided in slot (70) which may engage the lever to lock it in a zero position so that when the housing pivot axis C is vertical the scale indicates no deflection. To measure camber the arm 14 is mounted horizontally on the wheel and the housing turned so that the mirror face is normal to the axis B and the angle read directly from the scale. With the housing position unaltered the wheel is turned through 20 degrees, the scale zeroed, and the wheel returned to its original position and the resulting displacement of the mark on the scale indicates the caster angle. The latter procedure is repeated to measure the king pin angle, however, the housing is first turned through 90 degrees. The other end of arm 14 carries a toe-in measuring device comprising a projector 78 pivotally mounted about an axis D and having its optical axis normal to arm 14 so as to project a beam on to a scale 84 of a similar device mounted on the opposite front wheel.
Patent GB-286710-A (GB)
Title: Improvements relating to the production of cams for looms
IPC: D03D49/38
Filed: 1928-02-03
Abstract: 286,710. Grossmann, M. March 10, 1927, [Convention date]. Milling-machines. -Cains for looms are produced by a milling or grinding tool F having the same outline as the roller R with which the cam is to cooperate, the tool and work having the same relative movements as the cam and roller have during the operation of the loom. Vertical supports t carry horizontal shafts x, y the shaft x carrying a templet disc L and the shaft y a work blank W. A vertical shaft A connected to the supports t carries a frame B - - E which is rotatable about the shaft A. The roller R and tool F are mounted on the horizontal frame members. In operation, the work and templet are rotated at the same speed and the frame is swung until the tool engages and is pressed against the work. The tool continues to operate until the roller R is in continuous engagement with the templet, the work and the templet then being of the same outline. The invention is also applicable to the finishing of cast steel cams by a grinding operation. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which a number of cams may be simultaneously milled or ground from a single templet. Right and left hand cams for the same loom may also be made from one templet. This subject-matter does not appear in the Specification as accepted.
Patent GB-981105-A (GB)
Title: Improvements in or relating to multi-purpose plastic container
IPC: B65D5/42
Filed: 1963-01-28
Abstract: 981,105. Plastics containers. P. FLORJANCIC, and A. G. SCHMITT. Jan. 28, 1963 [Jan. 29, 1962], No. 3467/63. Heading B8P. A container is erected from a blank of plastics material with a base 2, fold lines 1, side walls 3, 4, and corner gussets 5 for erecting and joining the side walls by means of press-studs 6. A lid is likewise made from a second plastics blank. The side walls and lid may be provided with ribs, or reinforcing strips to stiffen and close the container, and the walls may be moulded in an undulating shape to strengthen the container. The upper edges of the side walls may be provided with locking lugs which co-operate with internal projections moulded to the lid. The container may be provided with apertures for ventilation, openings for the insertion of a handle, and slots for a label to identify the contents. The blank is injection moulded from a plastics material such as polystyrene, polyethylene or polyvinyl chloride. In an alternative construction the gussets may be replaced by one or more flaps. Joints may be provided to enable the box and lid to be slid into one another.
Patent GB-323144-A (GB)
Title: Improvements in tanks and like hollow bodies
IPC: B65D88/10
Filed: 1929-02-02
Abstract: 323,144. Braithwaite &. Co. Engineers, Ltd., and Tetford, J. C. Feb. 2, 1929. Pontoons.-Tanks or pontoons are built up of plates having inwardlydirected flanges 2, Fig. 2, preferably bevelled at 3, the edges between the adjacent walls consisting of inwardly flanged angle section members 4, 6. The walls of large tanks may be strengthened at intervals by additional uprights of U-section. The members 4, 6 have plates 8 welded or otherwise secured to their ends, and stiffening plates 11. A piece 13, Fig. 3, which may be separate or integral with a member 4 or 6, enables a tight joint to be made at the corners, and stays 15 may be provided.