baber/WOPTO huggingface dataset:
Patent GB-544596-A (GB)
Title: Improvements in microphones
IPC: H04R1/40
Filed: 1940-12-02
Abstract: 544,596. Sound directing appliances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 2, 1940, No. 17160. Convention date, Nov. 30, 1939. [Class 13] [Also in Group XXXIX] In a directional microphone receiving sound mainly in a horizontal plane, the sound is picked up at a number of. points and is converted into electrical variations which are in phase for all the pick-up points. The sound may be picked up by a number of independent piezoelectric, electrostatic, or other elements 21-28, Fig. 4, or by the open ends of a number of tubes 7, 9, 11, 13, 15, Fig. 2, of equal length, the tubes being formed with bends of different lengths so that the open ends are relatively displaced. The lower ends of the tubes are at the same distance from the ribbon 5 which is terminated by an acoustical resistance comprising a further tube 19 filled with sounddamping material. Two or more microphones of the kind shown in Fig. 2 having tubes differing in length to respond to different frequency bands may be used, Fig. 5 (not shown), the tubes being vertical and mounted on a common pedestal. The individual microphone elements may be connected through separate frequency-discriminating circuits to a common output, Figs. 6 and 8 (not shown). Specification 536,066 is referred to.
Patent GB-111527-A (GB)
Title: An Improved Receptacle for Storing and Heating Milk or other Beverages.
Inventor: SCHUBERT CATHERINE
IPC: A23C3/03
Filed: 1916-11-29
Abstract: 111,527. Schubert, C. Nov. 29, 1916. Stoppers and lids adapted for dischargcharging contents.-An upwardly-tapered vessel for storing and heating milk &c. has a tightfitting screwed-on lid c provided with a cut-away spout d adapted to be covered by a perforated cap e.
Patent GB-1082643-A (GB)
Title: Improvements in or relating to tractors
Inventor: KOSMAN JERZY
IPC: B60K17/04
Filed: 1963-05-01
Abstract: 1,082,643. Tractor drive arrangements. MASSEY - FERGUSON (UNITED KING- DOM) Ltd. April 28, 1964 [May 1, 1963], No. 17185/63. Heading B7H. [Also in Division F2] A tractor transmission comprises a rear vertical single-cylinder engine 19 with a, transverse crankshaft carrying the main clutch, Fig. 5 (not shown), and an output pinion 74 meshing a compound pinion 78, 79 driving a change-speed gear whose shafts 82, 94 are mounted above and to either side of the differential half-shafts 123, 124. The shaft 82 carries a reverse drive pinion 91 and a power take-off drive pinion 87, while the shaft 94 carries a pinion 120 meshing the differential crown pinion 121 on half-shaft 124. The engine 19 is bolted to a casing split longitudinally into halves 10, 11 and which with flared side portions 15 totally enclose the change-speed and differential gear units.
Patent GB-764836-A (GB)
Title: Improvements in and relating to a process for the production of alkali cellulose
Inventor: WILLIAMS HAROLD MALCOLM GORDON
IPC: C08B1/08
Filed: 1954-06-11
Abstract: In the manufacture of alkali cellulose by forming a slurry of cellulose in caustic alkali solution, separating the solution from the alkali cellulose so produced, and withdrawing a part of the separated solution, for treatment for the removal of hemi-cellulose, before returning it to the slurry-forming stage, all as described in the parent Specification, the removal of suspended fibres from the withdrawn portion of the solution is facilitated by adding cellulosic fibres to the solution and allowing it to flow through a <PICT:0764836/IV(a)/1> <PICT:0764836/IV(a)/2> perforated screen so that a filter bed of fibres is maintained on the screen.  The fibres to be added to the solution are preferably also of alkali cellulose. As shown, a container 1 and drum 2, which consists of a wire mesh cylinder, comprise the filtration unit.  The solution passes into the container 1 through pipe 12 and thence into the drum 2, which rotates slowly about solid shaft 6 and hollow shaft 7, the fibres being thus deposited as a mat.  A doctor blade 13 is placed close to the periphery of the drum and so removes most of the mat as the drum rotates.  Between the blade 13 and the shoot 14, by means of which the fibres are removed, there is a slot 15, which may be varied in width by means of an adjustable plate 16.  Thus a proportion of the fibres removed by the blade is returned to the container by way of the aperture 15 to be eventually redeposited on the drum.  The solution inside the drum, which is substantially free from fibres, passes through the weir 7 to pipe 11 to be treated by dialysis to remove hemi-cellulose before re-use or to be used directly as a xanthate dissolving liquor.
Patent GB-711610-A (GB)
Title: Improvements in or relating to pipe unions
IPC: F16L19/075
Filed: 1951-07-20
Abstract: 711,610. Pipe joints. CANIVET, G. july 20, 1951 [Nov. 15, 1950; May 28, 1951], No. 17236/51. Class 99 (1). Each end of a sleeve 3 surrounding the pipe ends 2 is packed by a pair of rings 5, 7, the ring 5 being pressed into a tapered recess 6 in the ring 7 by a nut 8 or other means. The position of the rings may be reversed so that the nut engages the ring 5. The pipes abut a central ring 1 which may be integral with one or both of the inner packing rings. The sleeve may be flanged internally at one end, pressure being applied by a single nut.
Patent GB-1382923-A (GB)
Title: Colour resolving optical system
IPC: G03B33/00
Filed: 1972-04-14
Abstract: 1382923 Colour resolving optical system. CANON KK 14 April 1972 [17 April 1971] 17270/72 Heading G2J [Also in division H4] A colour television camera comprises an object lens 5, three pick-up tubes 8, 9, 10 and a prism system comprising four prisms 1, 2, 3, 4. Dichroic mirrors are provided at 6 and 7 and trimming filters at 11, 12, 13, prisms 2 and 4 being separated by an air gap G.
Patent GB-1089858-A (GB)
Title: Switch board for an interphone communication system
IPC: H04M9/00
Filed: 1965-04-23
Abstract: 1,089,858. Interconnection systems. NIRA N.V. April 23, 1965 [April 24, 1964], No. 17300/65. Heading H4K. The face of a switchboard in an interconnection system is set out as a plan of the premises with the call indicator lamps and answer keys placed on the plan in positions corresponding to their associated substations. The arrangement allows the switchboard face to be employed as a planning board. As applied to a hospital the switchboard has combined call lamps and answer switches (the lamp being in the press button of the switch), a call flashing the call lamp and lighting a lamp indicating the room from which the call is made. Information, such as the availability of beds and the condition of patients, is set up on the switchboard face by placing appropriately coloured magnetic rings over the call lamp and answer switches. The use of a switchboard as a planning board may be applied to commercial enterprises such as shops and garages.
Patent GB-1311732-A (GB)
Title: Tube connections
IPC: F16L9/02
Filed: 1970-04-13
Abstract: 1311732 Pipe couplings ITE IMPERIAL CORP 13 April 1970 [18 April 1969] 17380/70 Heading F2G A pipe 12 with an enlarged end 22 is retained by a resilient sealing ring 20 held between a wall 17 of a nut 11 and the end of a co-operating element 13, the enlargement 22 being either a double flare with a flat end, as shown, or a separate piece welded, brazed, adhesive mounted or shrunk on to the pipe end, Fig. 5 (not shown). The sealing ring 20 allows small pipe-nut misalignments, and forces due to fluid flow within the pipe 12 increase the sealing force of the sealing ring. The sealing ring 20 and nut 11 are placed on the pipe end before or after the enlargement formation. The double flare is formed by the action of a two-part die.
Patent GB-120396-A (GB)
Title: Manufacture of an Improved Egg Substitute.
Inventor: CULLEN HARRY STUDDERT
IPC: A21D2/26
Filed: 1918-10-24
Abstract: 120,396. Cullen, H. S., and Fulton, G. L. Nov. 2, 1917, [Convention date]. Food preparations.-A substitute for eggs is made by mixing an albumen such as casein with an alkali such as sodium bicarbonate in hot water, and adding eggs. The composition may be used in making sponge cakes.
Patent GB-677339-A (GB)
Title: An improved machine for cleaning beasts' gut primarily intended for sausage skins
IPC: A22C17/16
Filed: 1949-07-02
Abstract: 677,339. Cleaning animal gut. TWIGDON, J. C., and MANN, H. June 30, 1950 [July 2, 1949], No 17540/49. Class 28 (ii). Animal gut e.g. for sausages, turned inside out is fed between roller 5, 6 to the nip of a pair of beating rollers 7, 8 having laths 21 which with the help of a fluid (water) effect the cleaning, one of the rollers of each pair of rollers being adjustable by independent handwheels 16 and 27. Springs are included in these adjustments to allow yielding. The gut then falls to a plate 9 which guides it to an outlet 10. The laths are U-shaped and resilient. The peripheral speed of the beating rollers is much faster than that of the feed rollers. A pipe 38 supplies water jet between the ends of the rollers 7, 8. The gut cleaning unit is isolated in an inner casing 18 inside the outer casing 1. The machine gears, on the spindles of each roll end, are protected by being isolated between the casings, all except the feed roll 6 being driven from a motor in the base. Access to the interior is obtained by removable parts 1a and 1b of the outer casing and a removable part 18a of the inner casing.
Patent GB-750759-A (GB)
Title: Improvements in or relating to lifting devices for vehicles, especially mechanically-propelled vehicles
IPC: B66F7/28
Filed: 1954-06-16
Abstract: 750,759. Garage lifts. SCHMIDT, P., [trading as SCHMIDT, P., [Firm of]]. June 16, 1954 [June 20, 1953], No. 17636/54. Class 78 (3). In a garage lift the vehicle is supported on crutches n each mounted on pairs of arms h, g which are pivoted together at k, and are pivoted at f to a disc a rotatably mounted at the top of a hydraulic lifting ram: the arrangement being such that the crutches can be swung in a horizontal plane from stowed positions within the periphery of the disc to operative positions beneath suitable lifting points on the vehicle. Each crutch is vertically adjustable by a screw mechanism (not shown).
Patent GB-545873-A (GB)
Title: Improvements relating to the heating of ovens and hot chambers of gas heated cooking apparatus
IPC: F24C3/08
Filed: 1940-12-16
Abstract: 545,873. Gas cooking stoves. CANNON IRON FOUNDRIES, Ltd., CLAYTON, R. T., and OATLEY, A. F. Dec. 16, 1940, No. 17706. [Class 126] A hot chamber or a gas oven closed at the base is heated by a luminous flame burner o arranged in a removable combustion chamber p extending along the bottom of the oven back wall k below an outlet flue q communicating with the interior of the oven by two semi-cylindrical recesses t in the side walls e or by outlets in a plate u surrounding the combustion chamber and attached to the back wall k. The combustion chamber may consist of a detachable front wall 12, end walls z, and a rear wall x which is curved at its upper part and ends in a lip y forming with the front wall 12 an outlet opening 13. The rear wall x is notched to engage positioning lugs 17 on the back wall k. The wall k is formed with a flue outlet nozzle r and with two forwardly projecting ribs s which with the plate u, form the flue q. The back of the lip y is formed with slight projections 25 resting against a shoulder 15 on the plate u. A thermostatic tube 29 controlling, the temperature of the oven may be arranged in the flue q. Air is admitted to the combustion chamber through one or more openings 22 which may be fitted with controlling means. The lower part 14 of the wall k is outwardly curved to leave an air space insulating the combustion chamber from the outlet flue. The inner surface of the wall x is polished or enamelled to enable the flames to be easily seen from the front of the oven. The bottom of the oven is closed by a spillover tray m sliding on the lowest of the shelfsupporting ribs g. Specification 537,189 is referred to.
Patent GB-1100926-A (GB)
Title: Improvements in and relating to pulse halving circuits of the kind including a relay
IPC: H03K23/74
Filed: 1966-04-22
Abstract: 1,100,926. Relay circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 April, 1966 [27 April, 1965], No. 17712/66. Heading H3P. A pulse divide-by-two circuit comprises a pulse source across which is connected a first path which includes a relay coil R in series with a diode 1 and a parallel capacitor-resistor network 3, 4 and a second path which include a make contact of the relay r in series with a resistor 5 and a source of e.m.f. 6. A first closure of contact i energizes relay R from source 2 and contact r closes. On releasing contact i the relay R remains energized over a circuit including source 6 and resistor 5, the values of which are so chosen that the voltage drop across resistor 3 and capacitor 4 is greater that the e.m.f. of source 2. On a second closing of contact i the point Q becomes more negative than the source 2 and diode 1 is reverse biased releasing relay R.
Patent GB-358994-A (GB)
IPC: B60L15/20
Filed: 1930-06-10
Abstract: 358,994. Reciprocating and oscillating motors. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 10, 1930, No. 17789. Convention date, July 11, 1929. [Class 35.] An electromagnet operating a pawl-and-ratchet drive for a motor drum controller, has, in addition to a working winding, a winding energized by the motor current, the two windings magnetizing the magnet in the same sense. The magnet is preferably of the rotary type having a wound fixed element u, as shown, with salient poles co-operating with movable pole-pieces v, both of the sets of pole-pieces being so shaped at w that the magnet is unaffected by vibration, and is not sluggish in action. The polepieces v in moving open the circuit of the magnet coil, and are returned by a spring.
Patent GB-864803-A (GB)
Title: Process for the manufacture of percarboxylic acids
IPC: C07C409/38
Filed: 1959-05-26
Abstract: Percarboxylic acids are prepared from aldehydes by intimately mixing at least one mol of oxygen (as gaseous oxygen or oxygen-containing gas) with one mol of aldehyde in the presence of at most 0,001% by weight of the aldehyde of a salt of iron, cobalt, copper, nickel, chromium or vanadium.  A reaction temperature of 20-50 DEG C. is preferred.  An inert solvent may be used.  Elevated pressure may be used.  An apparatus for effecting the process continuously is described.  In examples, peracetic, perbutyric and perbenzoic acids are prepared using as catalysts, iron acetate, cobalt acetate or iron acetonyl acetate.
Patent GB-581811-A (GB)
Title: Pulse modulation signalling systems
IPC: H04B14/02
Filed: 1942-12-18
Abstract: 581,811. Pulse modulation; pulse generating circuits. LAWSON, D. I., and PYE, Ltd. Dec. 18, 1942, No. 18030. [Class 40 (v)] Signals are transmitted as a sequence of constant-width pulses, of which the timing, phasing, or frequency is varied in accordance with the signal voltage. The pulses may be radiated on an ultra-high frequency wave. In Fig. 5, a sinusoidal wave of pulse frequency is modulated in amplitude by the signal M and the resultant applied to trigger a pulse generator at a particular voltage level S, with the result that the pulses P shown in the lower part of the Figure are modulated in phase. In Fig. 6 a transitron pulse generator comprises a pentode valve V with a condenser C2 connecting the screen grid to a point between resistances R5, R6 in the earth connection of the suppressor grid. The circuit oscillates by virtue of negative transconductance between the screen current and suppressor grid voltage, and the pulses are sharpened by the provision of the coil L and resistance R9 in the cathode lead. The signal voltage is applied to the control grid, and a wave S of pulse frequency to the suppressor and screen grids, causing phasemodulated pulses P to appear across the cathode impedance L, R9. The pulse generator may comprise a multi-vibrator circuit with reciprocally-coupled valves, and the signal and the pulse-synchronizing waves may be applied respectively to the grid and cathode of one of the valves (Fig. 7, not shown). The generator may alternatively comprise a cascade pair of valves coupled by resistance-capacity coupling, and with a back coupling afforded by a resistance common to the cathode leads (Fig. 8, not shown). Reception is effected by applying the pulses in the positive sense to the grid of a valve V13, Fig. 9, thereby discharging the condenser C13, which during the pulse gaps is being charged through a resistance R13. The signal is taken off across the condenser through a low-pass filter. Specifications 511,222 and 523,575 are referred to.
Patent GB-512179-A (GB)
Title: Method for manufacturing a highly active depolariser from natural pyrolusite
IPC: H01M4/50
Filed: 1938-06-17
Abstract: 512,179. Batteries. LECLANCHE SOC. ANON. June 17, 1938, No. 18107. Convention date, June 23, 1937. Drawings to Specification. [Class 53] [Also in Group III] In the production of a depolarizer, pyrolusite is roasted, for example at from 600 to 700‹C. for half an hour, in the presence of carbon to reduce the main body to a mixture of lower oxides, cooled suddenly to obtain a large superficial area and treated with at least one acid to decompose the Mn 2O3 and to dissolve the MnO so formed and originally present, the residue being separated from the solution which also contains the impurities. The reduction is preferably carried out until the product corresponds to the formula Mn 2O3 while the acid may be 10 per cent. sulphuric acid. If much silica or silicates are present hydrofluoric acid may be used with the sulphuric acid to remove them. A further washing with acidulated water may be given, the final product having less than 5 per cent. of MnO. The ratio of the specific gravity of the final product to the untreated material is said to be 0.69:1 and an example of its use with 25 per cent. of graphite is given.
Patent GB-1224499-A (GB)
Title: Method of improving the mechanical properties of thermoplastic objects
Inventor: HEY ARIE
IPC: B29C48/03
Filed: 1968-04-17
Abstract: 1,224,499. Blow-moulding; chilling. UNILEVER Ltd. 17 April, 1968 [18 April, 1967], No. 18164/68. Heading B5A. Containers of hard unfoamed thermoplastic material, i.e. unplasticized polyvinyl chloride, polystyrene, polypropylene or h. d. polyethylene, are produced by exposing an intermediate product, which may be an extruded tube or injection-moulded preform, to a cooling medium on one or both of the inner or outer surfaces before expanding it in a mould by differential pressure. The cooling means may be of annular form having slits on its inner periphery, preferably inclined towards the tube in a direction away from the nozzle and preferably angled (Fig. 6, not shown) so as to give helical flow around the tube. In one embodiment (Figs. 7-8, not shown), the annular cooling means is separable and moves vertically after cooling the tube and separating, the tube being enclosed by split blow moulds which move downwardly therewith to a blowing station whereafter they open and move vertically upwardly to receive the next extrudate. The extruder may extrude continuously.
Patent GB-780624-A (GB)
Title: Manufacture of paper or like cellulosic webs
IPC: D21G9/00
Filed: 1955-06-23
Abstract: 780,624. Couching webs from paper-making machines. SULZER FRERES, SOC. ANON. June 23, 1955 [June 23, 1954], No. 18236/55. Class 96. A wet web is couched from the wire-cloth 23 of a paper-making machine with the aid of a suction pick-up roll 30 and wet press felt 24, the pick-up roll 30 being raised away from the wire-cloth 23 automatically when e.g. the suction in the suction couch roll is let down, as by a break in a suction pipe or by failure of the suction pump. As illustrated, the couch press roll 29 and the pick-up roll 30 are raised by compressed air admitted to cylinders 98, 99 with pistons 96, 97 linked with the rolls 29, 30, the suction rolls being connected through suction pipes and separators 46 to 51 to a multi-stage turbo-compressor 43 acting as a suction pump. The main separators may be fitted with electrodes to act as condensers, the capacity variation of which, when their water-level rises, may be used to operate electrically the valves for the compressed air supply to the cylinders 98, 99.
Patent GB-1027798-A (GB)
Title: Improvements in or relating to apparatus for distributing fluent material such as fertiliser
IPC: A01C15/00
Filed: 1963-05-09
Abstract: 1,027,798. Wheeled ramps. J. M. WYLLIE, and J. M. SHARP. July 31, 1964 [May 9, 1963], No. 18300/63. Heading B8H. [Also in Division B7] A wheeled ramp 10, up which tipper lorries are backed to load a distributor with fertilizer or the like, is adapted to support the distributor when the ramp is being towed by a tractor. An axle 19 for wheels 18 is supported by leaf springs 20, secured at one end 21 to the frame 13 and releasably connected at the other end to the frame by a pin 27, and is adapted to be raised and lowered by hydraulic rams 30, which, together with a ground-engaging ram 31, are coupled to the tractor hydraulic system. The twin tracks 14 of the ramp are provided with removable sections 16 beneath which a downwardly inclined support 17 is provided. In operation, when the apparatus is to be towed away, the sections 16 of the ramp are removed, the distributor is backed up the ramp until its wheels 11 enter the spaces left by the sections 16 and are supported on the supports 17. The rams 30 are then extended, the springs 20 are coupled to the frame and the tow bar 35 of the distributor is coupled to the tow bar 32 of the ramp and to the tractor.
Patent GB-121345-A (GB)
Title: Improvements in Multiple Electric Switches.
IPC: H01H19/64
Filed: 1917-12-12
Abstract: 121,345. Joyce, V. E., and Park Royal Engineering Works. Dec. 12, 1917. Switches, quick-action; switchboards.-Multiple switches of the kind adapted for individual or common operation are made up of a number of individual switches enclosed in casings assembled side by side. As shown in Fig. 1, the multiple switch is made up of a number of identical units with the separate switch mechanisms each enclosed in a water-tight and gas-tight casing 4. A common operating-spindle 11, with a hand-lever 12, passes through each of the casings; or each casing may have a separate section of spindle coupled to its adjoining spindle section. Surrounding the spindle in each casing is a sleeve 13 having a square exterior rounded off at the end near the handle 12 to take a bearing in the casing, and fitting a square hole in a circular washer 15 at the other end, the washer taking a bearing in the other end of the casing. The square sleeve carries a cylindrical insulating-member with contacts 18, 18<a> embedded in its periphery, the contacts screwing into a ring 17 which is moulded in the insulation and serves to connect them together. In the ' on ' position of each switch, the contacts engage spring-pressed plunger contacts 28, 28<a> carried by brass blocks 32, 32a in the casing. The individual operating-handles 19 each have a boss secured to its corresponding square sleeve 13, and a cut-away portion of the boss receives a screw 22 on the main spindle so as to afford a lost-motion connexion between the individual switch handles and the common handle 12. The movement of each operating-handle 19 through approximately a right-angle is limited by cut-away recesses in the sides of the casings; the common handle is capable of movement through two right-angles. The handles 19 directly drive the movable switch contacts, and a snap-action is given by a bent wire spring embracing the square sleeve and held at both ends in recesses in the casing. The movement of any one of the handles 19 to the ' on ' position lifts the common handle 12 from the horizontal to the vertical position, by driving the main spindle through the lost-motion connexion and against the action of a spring which tends to maintain the handle in the ' off ' position. The common handle thus serves to indicate that some of the switches are in the closed position. By operating the common handle, all the switches may be brought to the ' on ' or ' off ' position together.