baber/WOPTO huggingface dataset:
Patent GB-842564-A (GB)
Title: Improvements in or relating to feeding devices for foundry moulding machines
IPC: B22C15/10
Filed: 1958-03-10
Abstract: 842,564. Moulding-machines. FOUNDRY EQUIPMENT Ltd., and BEECH, A. S. March 10, 1959 [March 10, 1958], No. 7665/5S. Class 83 (1). Apparatus for feeding mould-boxes into and out of a moulding-machine comprises a receiving-station for empty mould-boxes on the inlet side of the pattern plate, a guideway extending therefrom in line therewith so as to pass beyond said pattern plate, and a pressure-fluid operated reciprocating feed-device on the guideway having spaced feed-arms or like members to releasably engage and simultaneously move both a completed box from the moulding-machine and a further mould-box into the machine from the receiving station. The reciprocating feeddevice comprises a carriage movable on the guideway 20 by a cylinder-and-ram 26, 27, and carrying feed-arms 35, 36, mounted on a shaft 34 rockable by an hydraulic jack 30 on the carriage, so that fingers 37 on the feed-arms may be lowered into, or raised out of, engagement with slots in mould-box flanges. The ram of the jack 30 also carries trip-members 40, 41, which actuate valves 42, 43, causing the main ram 27 to be retracted or extended. The ram 27 actuates trip-valves beneath the cylinder 26 to provide an automatic sequence of clamping, unclamping and reciprocation. In operation, an empty mould-box arrives from a conveyer 38 at a spring-loaded stop 119 at the receiving-station 11. The jack 30 is operated to raise the fingers 37 and actuates the valves 42, 43. causing the ram 27 to retract. At the end of the retraction the feed-arms 35, 36, are lowered, so that the finger on the arm 36 engages a slot in the box flange. The valves 42, 43 are simultaneously actuated to cause the ram 27 to extend, to move the box to the pattern-plate 12, over-riding the stop 119, to which another empty mould-box moves from the conveyer 38. The moulding-operation is performed while the arms 35, 36 are again raised and the ram retracted. After completion of the moulding operation, the swing-head of the moulding- machine is removed, and the arms are again lowered so that the finger of the arm 35 locates in the full box and the finger of arm 36 locates in the empty box at the stop 119, and the forward movement of the ram 27 pushes the completed mould-box from the machine, and the empty mould-box on to the pattern-plate.
Patent GB-1101511-A (GB)
Title: Improvements in or relating to oil-feeder tanks for use with oil-filled electric cables
IPC: H02G15/26
Filed: 1965-02-23
Abstract: 1,101,511. Oil - filled cable systems. PIRELLI S.p.A. 23 Feb., 1965 [10 July, 1964], No. 7671/65. Heading H1A. The tank shown maintains the oil pressure in an electric cable. The space above the piston 10 is filled with air or nitrogen under pressure and the space below it with oil. The intermediate section 5 of the tank is lined with gaskets which prevent communication between the oil and the gas, and ducts 9 lead off gas which succeeds in passing the upper part of the seal.
Patent GB-886650-A (GB)
Title: A dielectric material loss factor measuring device
IPC: G01R27/26
Filed: 1959-03-05
Abstract: 886,650. Dielectric loss measurement. TESLA, NARODNI PODNIK. March 5, 1959 [March 6, 1958], No. 7683/59. Drawings to Specification. Class 37. Apparatus for measuring the loss factor of a dielectric comprises a capacitance having a fixed electrode and a micrometer adjustable moving electrode between which a specimen is clamped. The capacitor is connected to the terminals of an admittance component meter, and a variable parallel inductance is connected directly to the capacitor plates independently of the admittance meter connections. Adjustment of the inductance for zero - imaginary component neutralizes the reactive admittance components of the capacitance and its leads, so that the instrument measures the conductance G 1  representing the loss in the sample and those in the insulation and resistance of the capacitor assembly. The sample is removed and the plates separated until the imaginary component is again zero, and the conductance G 2  represents the losses in the capacitor assembly alone. Then the conductance G x  due to losses in the dielectric is given by G x = G 1  - G 2  and the capacitance C x  due to the dielectric material is calculated so that the loss factor is given by A mathematical analysis is given.
Patent GB-1102946-A (GB)
Title: Improvements in manhole covers and the like
Inventor: ROBINSON GERALD
IPC: E02D29/14
Filed: 1966-02-22
Abstract: 1,102,946. Manhole covers. BROADS MANUFACTURING CO. Ltd. 3, Jan., 1967 [22, Feb., 1966], No. 7716/66. Heading B1G. Manhole cover 2 and fixed frames 1 are formed from acute L-section metal strip formed into a closed figure and the ends joined. The cover has transverse reinforcing rods 5 welded to the frame which is filled with concrete. Feet 8 may be welded to the corners of the fixed frame. The channel of the fixed frame may be filled with luting for fluid tightness.
Patent GB-688515-A (GB)
Title: Process for preparing polyhydric alcohols by catalytic reduction of carbohydrates
IPC: C07C29/10
Filed: 1951-04-04
Abstract: Polyhydric alcohols are produced by the continuous catalytic reduction of carbohydrates in which an aqueous carbohydrate trickles downwardly over a fixed nickel catalyst containing more than 20 per cent by weight of nickel at a temperature above 100 DEG  C. in the presence of hydrogen under pressure.  A nickel catalyst containing silica, prepared by precipitating nickel from a nickel salt solution as a silicate and mixing it with a carrier, may be used.  Another suitable catalyst may be obtained by precipitating nickel from a solution of a nickel salt with an alkali silicate at a temperature above 60 DEG  C. and ensuring that the atomic ratio of nickel to silicon is in the range of 1 : 1 to 1 : 3.  The precipitate is dried and reduced with hydrogen.  Suitable carriers are sintered kieselguhr, alumina, magnesium silicate, magnesium carbonate, magnesium oxide, barium sulphate, majolica, earthenware, active carbon, aluminas, aluminium and various clays, e.g. white bauxite. Glucose solutions are suitable as starting materials.  These may be pure or impure solutions such as those obtained by hydrolysing starch as completely as possible. Dextrins may also be used as starting materials, e.g. those obtained by less thorough hydrolysis of starch. In the examples solutions of glucose were reduced according to the invention to sorbitol.ALSO:Catalysts used for the catalytic reduction of carbohydrates to polyhydric alcohols in the presence of hydrogen consist of a fixed nickel catalyst containing more than 20 per cent by weight of nickel.  Preferably the catalyst contains silica and is supported on a carrier e.g. sintered kieselguhr, alumina, magnesium silicate, magnesium carbonate, magnesium oxide, barium sulphate, majolica, earthenware, active carbon, natural or artificial aluminas, metallic carriers such as aluminium, and various kinds of clay which may be acid-treated.  White bauxite is especially suitable.  The catalyst may, for example, be prepared by dissolving soda in water, adding sodium metasilicate and then nickel nitrate solution; the precipitate formed is filtered, dried and powdered: it is then mixed with white Surinam bauxite and graphite powder as lubricant.  The mixture is tableted and reduced in hydrogen, Alternatively, the catalyst may be prepared by precipitating nickel from a solution of a nickel salt with an alkali silicate ensuring that the Ni : Si ratio is between 1 : 1 and 1 : 3 so that a nickel compound of the montmorillonite type is formed and at least half of the precipitate consists of nickel montmorillonite; the precipitate is filtered, dried and reduced with hydrogen.
Patent GB-362275-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C23/76
Filed: 1931-03-13
Abstract: 362,275. Jacking attachments for vehicles. VENEZIAN, C. COHEN-, 40, Via Piffetti, Turin, Italy. March 13, 1931, No. 7800. Convention date, March 13, 1930. [Class 79 (iii).] A portable jib crane has pivoted adjustable screw-threaded struts 5 mounted on the vehicle and engaged with the ground during operation of the crane.
Patent GB-1511243-A (GB)
Title: Boats
IPC: B63B7/08
Filed: 1975-05-20
Abstract: 1511243 Self righting capsized boats RNLI (TRADING) Ltd 20 May 1975 [20 Feb 1974] 7831/74 Heading B7A An inflatable bag 13 is mounted athwartships on a roll bar structure 8, 9, 10, 12 above the metacentre (14) of the boat to facilitate the righting of the boat.
Patent GB-798876-A (GB)
Title: Electric cooking vessel and method of making same
IPC: A47J27/00
Filed: 1956-03-13
Abstract: 798,876. Electric heating. SUNBEAM CORPORATION. March 13, 1956 [Nov. 8, 1955], No. 7846/56. Class 39(3) An aluminium sheathed heating element 12 with longitudinally extending flanges 14 is welded to the base of an aluminium vessel 10. The heating unit 15 is embedded in magnesium oxide and its ends extend to terminal pins. In order to compress the oxide filling the sheath is slightly flattened. Specification 719,033 is referred to.
Patent GB-270059-A (GB)
Title: Improvements in and relating to domestic washing and like boilers
IPC: D06F1/00
Filed: 1926-03-23
Abstract: 270,059. Redfern, W. D. March 23, 1926. Washing-boilers.-A con denser for vapours com prises a water container C mounted in an outer casing B which is detachably fixed to the lid A, the interspace S being open to the vapour space in the boiling pan. The contents of the container can be emptied into the pan, as by removing the plug V.
Patent GB-125261-A (GB)
Title: Improved Means for Attaching Fabric Panels to Air-craft.
Inventor: MORTON WILLIAM
IPC: B64C1/12
Filed: 1918-05-11
Abstract: 125,261. Morton, W. May 11, 1918. Cars.-A fabric panel is detachably secured at one edge to an aircraft framework by means of turn-buttons passed through inclined slots in the panel and means are provided for straining that edge longitudinally so that the panel is stretched laterally by the wedge action of the buttons and slots. Fig. 1 shows a fabric panel 1 tacked at its upper edge to a longeron 2 and having pairs of plates 4 with registering inclined slots 5 secured to its lower edge for engagement with turn-buttons 7 on the other longeron 3. A turn-buckle 8 is provided to strain the lower edge of the panel. The lower edge of the panel may have a fabric strengthening-strip, and instead of the plates 4 one or a pair of metal strips with slots at intervals may be secured to the edge. Alternatively, inclined eyelets may be clinched at intervals to the fabric. According to the Provisional Specification, keyhole slots engaging with shouldered pins are used.
Patent GB-913412-A (GB)
Title: Electrochemical gas analyser
IPC: G01N33/00
Filed: 1960-03-07
Abstract: 913,412. Electrolytic testing. HERSCH, P. March 1, 1961 [March 7, 1960], No. 8015/60. Class 37. Oxygen in a gas is determined with an electrolytic cell by directly exposing to the flowing gas part of the cathode surface, which also contacts a stationary electrolyte, applying, an E.M.F. sufficient to reduce oxygen between the cathode and an anode which is inoxidizable in the absence of an E.M.F., and measuring the eurrent. The cathode may be in the form of a metal sheet, helix, or screen, or expanded metal, or a porous sheet; a porous diaphragm preferably contacts the electrodes and contains the electrolyte, in a quantity sufficient to fill its pores and wet the anode, but insufficient to occupy all the pore space of a porous cathode. The porous diaphragm may be of polyvinyl chloride, impregnated with potassium hydroxide solution, and the cathode and anode constituted by a bifilar winding of silver wire round a diaphragm layer mounted on a rod, or by porous silver sheet and platinum weave mounted on the outer and inner surface, respectively, of a diaphragm tube in a tubular housing. The gas flows over the cathode before returning over the anode along the diaphragm tube. Other suitable materials specified are: cathode-gold, copper, a metal of the platinum group, an alloy of the foregoing, mercury, or an amalgam; anode-gold, tantalum, graphite, stainless steel, mercury, or an amalgam; electrolyte-disodium hydrogen phosphate, potassium dihydrogen phosphate, potassium bicarbonate, or sulphuric acid. Dissolved oxygen may be determined after being transferred to a carrier gas.
Patent GB-1392041-A (GB)
Title: Photographic apparatus
IPC: G03B17/53
Filed: 1971-03-29
Abstract: 1392041 Photo-taking booths C W CLARK 29 March 1972 [29 March 1971] 8021/71 Heading G2A Automatic photographic apparatus comprises a camera, a magazine for cassettes of self-developing film units, a transfer device for replacing an expended cassette at the camera by a cassette from the magazine, and means for extracting the film units one by one from the cassette at the camera after exposure. As described, the invention is incorporated in a coin operated photographic kiosk in which a sitter is photographed by a camera 5 for single pictures or a camera 6 for multiple pictures via mirrors (11, 12), Fig. 1 (not shown). As shown in Fig. 7 cassettes each containing eight film units are stored in a magazine comprising holders 54, 55 and are transferred to and ejected from a cassette support plate 105 by a horizontally reciprocated plate 47; plate 105 being reciprocated vertically in synch with plate 47 to move the cassettes to and from the exposure plane in cameras 5, 6. After a film unit has been exposed it is withdrawn from the cassette by clamps 121, 128 Fig. 11 carried by horizontally moving carriages 122, 129. The unit is drawn through rollers (104), Fig. 8 (not shown), which rupture a developer pod in the unit,. and then the film and receiver sheets of the unit are separated by guides 161, 162. The film is ejected by a belt 175, and the receiver is carried by rollers 183, 184 and a belt 178 to a receptacle 196 for the customer. A photo-transistor (not shown), operates an alarm if the machine goes wrong. Application No. (co-pending 8022/71), Specification 1392042 claim other parts of the machine.
Patent GB-379640-A (GB)
Title: Improvements in or relating to static transformers
IPC: H01F38/08
Filed: 1932-03-17
Abstract: 379,640. Transformers. WIRZ, E., 9, Weihermattstrasse, Binningen, Basle, Switzerland. March 17, 1932, No. 8024. Convention date, March 17, 1931. [Class 38 (ii).] The main flux of a transformer is deflected with increasing secondary current for the purpose of limiting the currents and voltages in the secondary circuit by providing the core with extra stampings which form leakage bridges st between the primary bridging Pr and secondary winding Sek, and at the same time effect a thickening of the yokes i which reduces the no-load currents. The application of the invention to a shell type transformer is shown in Figs. I and 2, while Fig. 6 shows a core type transformer in which the secondary winding Sek is subdivided into sections which may be connected in series or in parallel.
Patent GB-925288-A (GB)
Title: Improvements in or relating to freewheel hubs
IPC: B62L5/04
Filed: 1962-03-01
Abstract: 925,288. Bearings &c. FICHTEL & SACHS A.G. March, 1, 1962 [March 3, 1961], No. 8067/62. Class 12 (1). [Also in Group XXXI] A free-wheel hub with brake has a spindle 4 with a central portion profiled by rolling, for support of a driver-member 5, to a diameter greater than that of at least one of its ends 12 on which screw-threads are rolled to receive bearing-race bodies for one of which, 6, an end of the profiled centre portion acts as a stop and the other of which 2 carries a fixed brake-cone 3 of peripheral diameter greater than the minimum diameter of its ball-race 7 which is assembled by pushing on the cage 24 over the cone 3 and then inserting the balls. The driver member 5 actuates a movable brake-cone 13 by screwing, so that for one direction of the driver member a coned surface 23 bears against a brake-sleeve 14, pushing it against the fixed cone 3 and expanding it against the inside of the hub-shell 1 and for the other direction a coned surface 21 engages a coned surface 22 to transmit the drive. The inside of the driver member is cold-formed as a continuous cone including a shallow journal surface 28 for a caged ball-bearing 20. The outside of the member 5 is journalled for a ball-bearing 10 which is interchangeable with the bearing 7 and which supports the other end of the hub shell.
Patent GB-1467447-A (GB)
Title: Inverters
IPC: H02M7/517
Filed: 1974-02-22
Abstract: 1467447 Inverting WESTINGHOUSE BRAKE & SIGNAL CO Ltd 30 April 1974 [22 Feb 1974] 8101/74 Heading H2F An inverter comprises a single or polyphase bridge of thyristors 30 ... 33 for feeding a resonant load 37 ... 39 and has an auxiliary commutating circuit comprising a capacitor 40 in series with a bi-directional switching device 42, 43 connected across the A.C. side and a voltage-responsive control circuit 44 also connected across the A.C. side. Control circuit 44 arranged commutation by the auxiliary circuit 40 ... 43 when starting until the load 37 ... 39 is able to commutate naturally. As shown, components 40 ... 43 form the auxiliary commutating circuit for starting. Initially capacitor 40 is charged by means not shown. Rectifier 34 is first triggered at a small conduction angle and thyristors 30 and 32 (or an equivalent crowbar thyristor, not shown) triggered so as to build up a current in inductance 35. At a predetermined current level, thyristors 31 and 42 are turned on so that thyristor 30 is turned off and the current transferred to the path including thyristors 31, 42 and 32. Capacitor 40 will discharge and recharge with opposite polarity, transferring current to the primary of transformer 36 and turning off thyristor 42. This action will initiate a damped sinusoidal oscillation in the resonant induction heating load 37 ... 39. Just after the peak of the first half cycle, thyristors 30, 43 and 33 are turned on so that thyristors 31 and 32 are turned off by capacitor 40. This procedure is repeated with the thyristor groups 31, 42, 32 and 30, 43, 33 being alternately conducting at half cycles of the load oscillation. When the charge on capacitor 39 is sufficient for natural commutation of the inverter, or, after a predetermined time interval, the triggering of the auxiliary commutating thyristors 42 and 43 is discontinued. These thyristors may be replaced by a triac. Transformer 36 may be replaced by a series inductor.
Patent GB-1388183-A (GB)
Title: Root cleaner
IPC: A01D33/08
Filed: 1972-02-22
Abstract: 1388183 Apparatus for cleaning root crops UKRAINSKY NAUCHNO - ISSLEDOVATELSKY INSTITUT SELSKOKHOZYAISTVENNOGO MASHINOSTROENIA 22 Feb 1972 8188/72 Heading B2H A root cleaner comprises at least two drums 3 and 4 rotatable in the same direction and having on their surfaces helically arranged clustered webs 7, the helices of two adjacent web clusters 8 and 9 being directed toward one another, a roll 5 located above the level of the drums, and a shield 6 having a port 11 through which the roots 14 can pass. The roll 5 also may be provided with helical webs 10. In operation the roots are fed onto the surfaces of the rotating drums and are caused to move in an axial direction along the drums by the web 7. When they reach the portion of the drums between the adjacent web clusters 8 and 9 they move in a radial direction over the drums and roll 5 and out through the port 11. Earth and vegetable impurities pass through the gaps between the drums and between the roll and the drum 4.
Patent GB-326027-A (GB)
Title: Improvements in talking machines
IPC: G11B25/04
Filed: 1929-03-13
Abstract: 326,027. Gramophone, Co., Ltd., and Whitaker, A. March 13, 1929. Cases.-The turntable 1 of a portable gramophone is mounted close to the bottom 4 of the box 6 and is friction-driven by a motor 7 arranged either wholly or in part above the level of the turntable, so that space is provided above the turntable to house records when the machine is not in use. An amplifying horn mouth is formed by two plates 14, 15 hinged together, these members in the closed position lying close together to form the lid of the casing. The turntable spindle 2 is elongated so that a number of records can be stored with their apertures over the spindle. A friction wheel 8 transmits the drive from the spring motor 7. The tone-arm 10 is mounted in a bearing 11 at the smaller end of a sound conduit 12. This sound conduit 12 extends laterally across the bottom of the box with an outlet 13 extending upwards and forwardly and its shape is such that the tone-arm 10 can be swung round to lie close against the back of the box when not in use. The plate 14 is hinged to the upper rear edge of the box 5 and in its lowered position forms a lid. The second plate 15 is hinged to the rear edge of the plate 14 and forms an outer lid when lowered to lie flat upon the plate 14. The plates 14, 15 are movable together and the plate 15 can move relative to the plate 14 to a limited extent so that these plates form the upper and lower walls of a horn mouth. An aperture 17, Fig. 4, in the plate 14 enables connection to be made between the end 13 of the sound conduit 12 and the horn mouth. The outer plate 15 is provided with sector-shaped wings 18 which in the closed position lie within and against the side walls of the box 5. Catches 19, Fig. 1, on the inside of the wings 18 can be turned to prevent the plates 14, 15 collapsing when the machine is in use. Small metal plates 20 are also secured at the lower edges of the wings 18 to project beneath the edges of the plate 14 so that the horn mouth is movable as a whole. To provide lateral taper of the horn mouth, a curved strip 21 is secured to the undersurface of the plate 15. A slit 24 in the plate 14 enables the strip 21 to enter the body of the box 5 when the machine is closed.
Patent GB-806969-A (GB)
Title: Improvements in oil heating plants driven by a direct current motor
IPC: F23N1/00
Filed: 1957-03-13
Abstract: 806,969. Supplying liquid fuel to burners. AUTOCALOR A. B. March 13, 1957 [March 17, 1956], No. 8279/57. Classes 75(1) and 75(3). In an oil heating plant with a high pressure burner, in which an oil pump 1 and a fan 6 for combustion air are driven by a direct current motor of the rotary converter type connected to a storage battery, the generated alternating current being transformed into high voltage alternating current in a transformer 10 feeding a spark gap 13 for igniting the fuel, a cylinder 16 is connected to the pressure side of the fuel pump and has a piston 18 slidable therein against a spring 19 and displaced by oil entering the cylinder, the movement of the piston opening a connection between the pressure side of the pump and the burner 4 only after the motor 9 has reached a speed sufficient to produce a spark at the spark gap. The piston may uncover a port 17 connecting the cylinder with the burner 12 or may control a valve in the feed pipe to the burner. A by-pass 14 controlled by a spring pressed valve 15 connects the pipe 3a from the pump 1 to the cylinder 16 with the supply pipe 2 to the pump when the difference in pressure between the two sides of the pump exceeds a predetermined value. A second by-pass 20 having a narrow passage 21 which may be adjustable is provided to enable oil to return from the cylinder 16 to the supply pipe 2 when the pump is stopped. A rod 18a on the piston is connected by a [crank elbow 24 with a damper 22 in the air inlet pipe so as to open this when the piston is displaced.