baber/WOPTO huggingface dataset:
Patent GB-1470111-A (GB)
Title: Transducer arrangements
IPC: H03K17/94
Filed: 1974-03-22
Abstract: 1470111 Piezoelectric generators SIEMENS AG 22 March 1974 [22 March 1973 5 Feb 1974] 8254/74 Heading H2A In a transducer arrangement, a parallelepipedic ceramic body 1 which is piezoelectrically active at least over a portion h of its overall length H has width and thickness dimensions l, d chosen such that h#3d, and l#3d, and a synthetic resin support body is provided to increase the resistance of the body 1 to bending in the thickness direction when force is applied to a keying surface. In the arrangement shown, the body 1 has electrodes 25 (24, Fig. 2, not shown) on the active portion h, and electrodes 125, (124) on a piezoelectrically inactive portion H-h, and is fastened to two support bodies 64, 164, e.g. of polyacrylic glass, vinyl ester/vinyl chloride copolymer, polystyrene or polyacrylic nitrile, the assembly being mounted in a keying body 90 to allow pressure to be applied in the direction 2. In the arrangement of Fig. 4 (not shown), a transducer (1) is mounted in a support body (70) of cruciform shape, and in the arrangements of Figs. 6-8 (not shown) the piezoelectrically active portions are divided into two separate regions with oppositely directed polarizations, the electrodes being connected so that generated voltages are summed. In the arrangement of Figs. 9, 10 (not shown), a transducer (201/1) is connected into a transistor circuit to switch current in a load (231) when the transducer is activated, an inactive section of the transducer body providing capacitance C and a resistive electrode providing resistance R in an RC filter. In the arrangement of Figs. 11, 12 (not shown) a resistive layer (8211) is applied between two electrodes (8125, 825) on a body 1, and connection (8224, 8225) are applied to two support bodies (864, 8164). In all cases the ceramic body may be lead titanate-zirconate or barium titanate, and the support body may be sprayed into position.
Patent GB-483879-A (GB)
Title: Improvements in or relating to epicyclic gears, particularly for driving gears such as progressive change speed gears
IPC: F16H29/08
Filed: 1937-03-22
Abstract: 483,879. Variable - speed gearing. ANDRES Y GONZALEZ, M. March 22,1937, No. 8361. [Class 80 (ii)] In an epicyclic gear, the reaction member is driven at a variable speed and is connected back to the driving member through a separate connection, which by its self-locking action prevents the reaction member from over-running. In the form shown in Fig. 1, the driving shaft 5 carries bevel planets 4 engaging a driven wheel 1 and a reaction wheel 2. The wheel 2 is driven from the shaft 5 at a variable speed, through gears 9, 10, a crank-pin, connecting-rod; radius arm and double rack (not shown) engaging gears 19, 20 connected by ratchet clutches 19a, 20a to a shaft 7 connected through a ratchet clutch 8a to a gear 8 meshing with a gear 2a on the hub of the reaction wheel 2. To obtain the variable speed of the wheel 2, the pivot between the radius arm and the rack is mounted in a longitudinally slidable block, the position of which may be conjointly controlled against the action of a spring by a centrifugal governor driven by the driven shaft 6 and by a hand control, such as a string wound on a drum carrying an operating-handle. To prevent reversal of the wheel 2, the shaft 7 carries a worm 32 gearing with a worm wheel 36 gearing with a worm 35 geared through a gear 33 and a reversing-pinion, not shown to the wheel 2. In the form shown in Fig. 4, the lever 12 is oscillated from the driving shaft 5 through gears 9, 10, a crank-pin (not shown), and a connecting-rod 11. The oscillation is transmitted by a slidable pivot 15 and a link 16 to an arm 39 carrying an internal gear 42 rigid with a gear 43. The gears 42, 43 engage gears 19, 20 connected by one-way clutches to the shaft 7, which is connected by a one-way clutch to a gear 8 connected through gears 33, 44 to the reaction member 2. The gear 2 rotates in the opposite direction to the driving shaft, so that by shifting the pivot 15 a forward and reverse drive can be obtained. Reversal of the gear 2 is prevented by the irreversible worms 32, 35 and the worm-wheel 36.
Patent GB-268381-A (GB)
Title: Improvements in apparatus for grinding axle bearing guides of locomotives
IPC: B24B19/00
Filed: 1927-03-26
Abstract: 268,381. Mayer & Schmidt, Schleifmaschinen und Schmirgelwerk Akt.- Ges. March 26, 1926, [Convention date]. Disc apparatus.-Apparatus for grinding the faces of the guides or jaws for the axle boxes of locomotives consists of a frame 1 supported on the rails beneath the locomotive and carrying a vertically adjustable member 2 on which is pivoted at 4 a lever 5. The lever carries casings 6 in which are mounted grinding-rings 8, the casings being adjustable along the lever, and the rings 8 being adjustable axially by hand wheels 11 and driven by belting from a motor 15 on the frame 1; the belt passes round pulleys 13 on the lever 5 and round pulleys 14 on the grinding shafts 7. In operation, the apparatus is adjusted so that one ring operates on a jaw on one longitudinal frame of the locomotive and tne other ring operates on the corresponding jaw of the other longitudinal frame, and the lever is oscillated, either by hand or by a crank gear 16 driven by the motor 15 to move the rings over the faces of the jaws.
Patent GB-987984-A (GB)
Title: Improvements in or relating to apparatus for mixing plastic, liquid, or particulate solid materials or combinations thereof
Inventor: WALDRON FELIX WALTER
IPC: B29C48/85
Filed: 1961-03-08
Abstract: 987,984. Mixing appliances. DUNLOP RUBBER CO. Ltd. March 7, 1962, [March 8, 1961], No. 8391/61. Addition to 937,652. Heading B1C. The apparatus of the parent Specification is modified by the addition in the mixing passage 20 of a vane 31 having a surface 33 closely adjacent to, and conforming closely to the profile of, the mixing member 24. The apparatus is shown in position as the first mixer 1 of the plant for mixing rubber and particulate solids described in Specification 974,822, in which it is fed by a forcing unit 2 having an extruder barrel 8, and a screw 15 rotatable to force material into the conical inlet passage of the mixer 1. The second mixer 14, see also Fig. 2 (not shown), has a cylindrical passageway 21 with vanes as at 38 on both sides of the mixing member 40. The vanes extend along the passageway for a distance equal to about ¥ of its diameter, and are about 1/5 diameter thick at the base tapering to a narrow fin 34 extending almost across the passageway. The clearance between the vane and rotor is about 0À004 inch.
Patent GB-1056996-A (GB)
Title: Method of purifying molasses
IPC: C13B35/06
Filed: 1964-02-28
Abstract: In purifying molasses, e.g. cane molasses, to obtain sugars for use in chemical industry, the molasses is intimately mixed with a water-soluble organic solvent, such as methanol, ethanol or acetone, the mixture is filtered to remove the resulting precipitate, then diluted with water, and the organic solvent is removed and recovered from the diluted filtrate, as by simple evaporation or distillation. The resulting dilute molasses is then subjected, in any sequence, to at least one decolorizing treatment with active carbon, e.g. in the form of pellets, at least one deionization treatment with a cation exchange resin, e.g. in the H-form, and at least on deionization treatment with an anion exchange resin, e.g. in the OH-form. Suitable active carbons and cation and anion exchange resins are specified.  A decolorizing treatment with active carbon may follow each deionization treatment. The resulting purified molasses solution may be concentrated under reduced pressure, and filtered, to yield a syrup containing 70%, by weight, of sugars.
Patent GB-731006-A (GB)
Title: Improvements in and relating to slide fasteners
IPC: A44B19/02
Filed: 1953-03-26
Abstract: 731,006. Sliding clasp fasteners. URBAN & CO., GES., W. March 26, 1953 [March 26, 1952], No. 8415/53. Class 44. A sliding-clasp fastener has interengaging elements which are symmetrical about a plane parallel to the length of, and at right angles to the plane of, the stringers. In the form shown, interengagement of the elements is effected by part-spherical portions 5 and corresponding recesses 6, and grooves 7 are provided at each side, the bead 8 of the stringer 9 to which the element is attached being secured in one groove 7 while the other groove receives the bead 8 of the other stringer when the fastener is closed. The fronts of the elements 1 may be decorated with beads or formed for the reception of brilliants, the closed fastener then presenting a line of decoration. The stringers 9 have a second bead 13, parallel to the edge bead 8 which serves to guide the slider which is provided with a locking member 18.
Patent GB-1417373-A (GB)
Title: Conveyer
IPC: B65G25/02
Filed: 1974-02-25
Abstract: 1417373 Reciprocating conveyers PREROVSKE STROJIRNY NARODNI PODNIK 25 Feb 1974 8446/74 Heading B8A Articles 2 supported at their sides by fixed elongate members 1 are conveyed step-by-step by rack-like members 4, 5 which are reciprocated longitudinally; member 5 also has a vertical movement. Operation of a crank drive 6 from the position shown in Fig. 1 causes the member 5 to be raised while engaging stop 7, the articles 2 being lifted and the member 4 moving to the left. Upon moving member 4 to the right the member 5, still raised, conveys the articles to the right until member 5 engages stop 8. As the member 4 completes its movement to the right, member 5 is lowered and the articles are lowered on to the members 1, the members 4, 5, re-engaged as in Fig. 1, returning to the original position to the left. A base 3 may have a roller track for the member 4 or the member may slide on the base. In Fig. 5 there are three pairs of movable members 4, 5, with additional fixed members 1. In an embodiment for operation at temperatures above 1000‹ C., Fig. 6, the movable members 4, 5 each consist of ceramic elements and member 4 is actuated by a mechanical or hydraulic pusher 9 at each of its ends.
Patent GB-1038708-A (GB)
Title: An arrangement for use in carrier frequency transmission systems
IPC: H04B3/54
Filed: 1964-02-28
Abstract: 1,038,708. Pilot operated automatic gain control. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 28, 1964 [March 1, 1963], No. 8545/64. Heading H4R. In a pilot operated automatic volume control system in which the pilot and the information channel are received as modulation in a sideband of a carrier frequency, the pilot frequency is selected and demodulated and then added to the carrier frequency information channel before the signal is applied to the level controlling circuit, by this means the pilot signal, which is thus widely separated in frequency from the information signal, may be separated with a pilot selection filter having a wide band width and therefore a short transit time for application to control the gain of the amplifier in the signal path. The invention is said to reduce hunting of the gain of the controlled amplifier. Fig. 4 shows an embodiment of the control circuit in which the carrier frequency signals at point 5 are applied via a channel selection filter 20 and hybrids 21 and 22 to the input of the volume control circuit 26 to 29. In addition hybrid 21 feeds a demodulator 23 and a pilot selection filter 24 which recovers the original pilot signal which, via amplifier 25, is added to the carrier frequency signals in hybrid 22 and applied to the input of the variable gain amplifier 26. At the amplifier 26 output the pilot signal is selected by a wide bandwidth filter 27 and applied to a control circuit 28 where the pilot voltage is compared with a reference voltage from source 29, the difference voltage being used to control the gain of amplifier 26 to tend to stabilize the pilot level and therefore the level of the received signals.
Patent GB-1031172-A (GB)
Title: Improvements in or relating to devices for reducing hydraulic pressure pulsations
Inventor: FEU ALAN NEVILLE DU
IPC: F16K47/00
Filed: 1963-03-04
Abstract: 1,031,172. Pressure-relieving devices. SMITHS INDUSTRIES Ltd. March 2, 1964 [March 4, 1963], No. 8561/63. Heading F2V. [Also in Division F1] In a device for reducing hydraulic pressure pulsations in a pump delivery line, the pump delivery passes through an inlet passage 12 having a filter 15 and a square-edged constriction 18 dimensioned to produce predominantly turbulent flow, a chamber 21 having a sealed bellows 31 containing oil and air, and outlet passages 34 and 26. Expansion of bellows 31 is limited by a stop.
Patent GB-348290-A (GB)
Title: Improvements in and relating to liquid fuel supply systems for furnaces
IPC: F23K5/02
Filed: 1930-03-18
Abstract: 348,290. Liquid fuel supply to burners. PARKER, E. B., Holliscroft, Shenfield Gardens, Hutton, Essex. March 18, 1930, No. 8636. [Class 75 (i).] Liquid fuel is drawn from a source of supply and forced directly to the burners of a furnace by means of water under pressure. In the system shown, a pump of the double -acting tandem cylinder type, comprising a power cylinder j supplied with water from a pressure main p, and an oil-pumping cylinder e, draws oil from a reservoir a and pumps it directly to the burner c. An air vessel is connected to the pressure oil line. The oil may pass through a heater b. A thermostatically controlled valve may regulate the quantity of oil pumped. A duplex tandem cylinder pump may be employed.
Patent GB-498024-A (GB)
Title: Improvements in and relating to electroresponsive devices
IPC: H01H71/42
Filed: 1937-03-24
Abstract: 498,024. Induction relays, BRITISH THOMSON-HOUSTON CO., Ltd. March 24, 1937, No. 8692. Void. Convention date, March 24, 1936. [Class 38 (v)] In an induction relay the fixed electromagnet system comprises a hollow square 10 of laminated magnetic material which is formed with four internally-projecting integral polepieces 11 on which are placed formerwound pyramidal-shaped windings 15. Between the polepieces and windings 11, 15, are placed further polepieces 12 fitted with windings 16, these polepieces being held in position by pins 17 driven between recesses of the adjacent faces of the polepieces 11, 12. Mounted in the centre of the electromagnet is a fixed mass 13 of laminated magnetic material and in the air gap between the mass 13 and the polepieces 11, 12 is rotatably mounted a cylindrical rotor 14 of copper or aluminium formed as a cup-shaped member secured to a shaft 25. The poles 12 may be divided and fitted with shading rings 38 so that they can exercise a voltage restraint when the relay is employed as a power-directional device, windings 15 being fed by the current. For polyphase working a number of similar units may be superimposed, Fig. 6 (not shown), and secured by bolts, the shaft extending to contact mechanism in an upper compartment. To ensure perfect alignment the upper end plates 20 of each section are cylindrically recessed leaving shoulders 32, the lower end plates 19 being provided with cylindrical projections 33 to fit into these recesses. The end plates are formed with spiders 21 the spaces between the arms being filled with the windings 15 and the windings 16 fill the spaces over the spider arms. Thus practically the whole of the space within the square 10 is filled with windings and magnetic material.
Patent GB-1530426-A (GB)
Title: Organopolysiloxane compositions which may be converted into elastomers without using vulcanising agents
IPC: C08L83/04
Filed: 1977-03-02
Abstract: 1530426 Heat-curable silicone elastomer compositions RHONE-POULENC INDUSTRIES 2 March 1977 [5 March 1976] 08836/77 Heading C3T A composition curable to an elastomer by heat without a vulcanizing agent or irradiation comprises (A) 100 pbw of a polydiorganosiloxane of 2 Î 10<SP>5</SP>-8 Î 10<SP>7</SP> cp/25 C. containing 0À001-0À1 wt. per cent of terminal silanol OH groups, (B) at least 10 pbw of silica of specific surface area 100-400 m.<SP>2</SP>/g., and (C) 0À5-15 pbw of a tetramethylethylenedioxy silane Me 4 C 2 O 2 SiR 2 , where each R is Me or Et. The silica may in part be treated with (Me 2 SiO) 4  or Me 3 SiNHSiMe 3 , and other fillers may be added. In examples 100 g. of a polydimethylsiloxane of 8 x 10<SP>6</SP> cp/25 C. and 60 or 80 mg. of OH per kg. is blended with 5-35 g. of untreated silica, 40 or 45 g. of silica treated with (Me 2 SiO) 4  and 2-6 pbw of Me 4 C 2 O 2 SiMe 2 .
Patent GB-226720-A (GB)
Title: Improvements in hydraulic valves
IPC: F16K39/04
Filed: 1924-04-08
Abstract: 226,720. Crowe, H. April 8, 1924. Rotary disc valves; rotating to ensure even wear.-An hydraulic valve comprises an annular member h, Figs. 1 and 3, operated by an eccentric pin forming a balancing piston free to move axially. The working face of the casing has ports b., b<1> connected to an hydraulic cylinder and an exhaust port c. The pressure inlet is in the side of the casting, and the liquid acts on teeth t to rotate the annular member. Packing leathers u, u<1> or h' are fitted.
Patent GB-609779-A (GB)
Title: Electric condenser
IPC: H01G2/08
Filed: 1946-03-22
Abstract: 609,779. Condensers. ALLMANNA SVEN. SKA ELEKTRISKA AKTIEBOLAGET. March 22, 1946, Nos. 8873 and 8874. Convention dates, May 5, 1945, and Feb. 2, 1946. [Class 37] A plurality of stacked condenser rolls 2, preferably made in or pressed to flat form, have protruding metal foils 3 which are turned in different directions and make heat dissipating contact with at least two walls of an enclosing container 1. One foil may protrude at one or both ends, or both foils may protrude, one at each end, one foil being insulated from the wall. Each layer may comprise one, two or four condenser rolls according to their size, and the foils may be soldered or welded to the walls or pressed against the walls by springs 5 disposed between the condenser rolls as shown in Fig. 3. Alternatively the foils 3 may be bent as shown in Fig. 4, and pressed against the wall 1 by means of a spiral spring 6 with a lath 7 of wood or presspalm intervening. In a modification, Fig. 6 (not shown), the container may have flexible folds in two diagonally opposite corners and the walls are pressed into contact with the projecting foils in a hydraulic or other press. The corner folds may be tightly pressed together and fixed by welding or riveting, or the tank may be maintained in pressed position by cooling pins which are made in one piece to be pressed over the tank. In a further modification, Figs. 7 and 8 (not shown), the cooling pins are made in two halves and welded to the tank except at the flexible folds, and, after pressing the folds partly together, the two halves are welded to one another.
Patent GB-1138032-A (GB)
Title: Improvements in and relating to stillage transporting vehicles
Inventor: WEEKS VICTOR DAVID
IPC: B62D49/00
Filed: 1967-02-24
Abstract: 1,138,032. Vehicle loading. WEEKS & CO. (ENGINEERS) Ltd. 14 Dec., 1967 [24 Feb., 1967], No. 8930/67. Heading B8E. Vehicle 1 supports carrying unit 7 pivotally at 4 and the latter unit is caused to be elevated by means of arms 5 pivoted at 5a and operated by a fluid cylinder 6 carried by vehicle 1, and by four fluid cylinders 21 which engage the shaft 14 which carries the pairs of wheels 18, 19 on which the unit 7 runs. In this way the carrying unit 7 engages and carries thereon a pallet (not shown) when raised.
Patent GB-269167-A (GB)
Title: Improvements relating to the combustion chambers of internal combustion engines
IPC: F02B25/00
Filed: 1927-04-01
Abstract: 269,167. Held, G. April 12, 1926, [Convention date]. Cylinder receiving liquid fuel.-In a cylinder having a torus-shaped combustion chamber 1, as described in Specification 226,805, the fuel valve is arranged axially, and the piston has two conical faces 2, 2<1>. Passages may be formed through the face 2 to the hollow 1<1> and in line with the face 2<1> to cause a current of air to whirl in the combustion chamber when the piston is at the end of its in-stroke.
Patent GB-1299572-A (GB)
Title: Purification of petroleum coke
Inventor: FRANZ WILLIAM FRANCIS
IPC: C10L9/02
Filed: 1971-04-07
Abstract: 1299572 Purifying petroleum coke TEXACO DEVELOPMENT CORP 7 April 1971 9029/71 Heading C5G In a process for purifying petroleum coke containing sulphur and metals such as nickel iron and vanadium the coke is pre-oxidized to increase its surface area, this coke is then treated with a synthesis gas containing CO at a temperture between 275‹ and 430‹ F. and a pressure between 450 and 750 p.s.i.g. to form gaseous carbonyls of the metallic impurities and this coke is desulphurized by treatment with a synthesis gas containing H 2  at a temperature of 1300‹ F. or above. The pre-oxidization is carried out at below 1100‹ F., preferably at 650‹ F. The sensible heat of the gaseous effluent from the disulphurization step may be employed in the pre-oxidizing step. Between 6 and 9% of the coke may be consumed in the pre-oxidization step and the synthesis gas may be produced by gasifying the coke with oxygen and steam.
Patent GB-454020-A (GB)
Title: Improved optical arrangements and means for producing images in relief
IPC: G03B35/24
Filed: 1935-03-22
Abstract: 454,020. Projection screens. LASSUS ST. GENIES, A. H. J. DE, 3, Boulevard de Roi, Versailles, France. March 22, 1935, No. 9060. Convention date, March 24, 1934. [Class 97 (i)] Relates to means for projecting images in relief of three dimensional objects or of films or plates of the type provided with a network so as to give a three dimensional image when viewed through the network. The means consists of a screen through which the rays from the object are sent by a projecting lens system, for example at O, Fig. 5, to be viewed from the opposite side, as at H, H<1>, the screen being constructed in three forms as shown in section in Figs. 3, 4 and 5. R2 and R3, Fig. 3 are lined or lenticular networks and 11 and 12 are unpolished translucent planes separated by a lenticular network E adapted to give images inverted relatively to the images on the screen 11. To ensure correspondence of the images it is generally necessary to provide opaque divisions U between the optical elements of the network E on one side at least of its mean plane. An observer sees in the emergent beams, images B<111> and A<111> of high and low points in the original object. The cross hatched portions in the figure represent transparent material of refractive index greater than unity. In the modification shown in Fig. 4, the network E is replaced by two component networks E1 and E2 interposed between the entrant and emergent separate networks R2 and R3. The opaque divisions may be dispensed with, as shown in Fig. 5, where three separate lenticular networks R2, E, and R3 are employed with an unpolished screen 12 between the last two, and with or without an unpolished plane I1. The networks may be formed of spherical or cylindrical lenticulations or may be separate lined networks. The last network R3 gives in the plane H, H<1> of the observers a great number of adjacent images separated according to the maximum emergent pupil of the projecting system O as seen from the entrant network R2. The variable aspect of the object seen within the periphery of each of the images is the same as would be seen of the original object seen from the optical system, but distortion of the perspective appears as the observer changes from the centre H of the field. There should be correspondence between the optical elements of R2 and E centre to centre and axis to axis in straight lines or planes directed to the optical centre of the projecting system O, and between the elementary images on the surface 12 and the emergent network elements R3 directed to a point H chosen as the optimum viewing centre.