baber/WOPTO huggingface dataset:
Patent GB-256881-A (GB)
Title: Improvements in exhaust steam injectors
IPC: F04F5/46
Filed: 1926-03-12
Abstract: 256,881. Metcalfe, R. D., and Mctcalfe, J. C., Rawson, E.). March 12, 1926. Valves controlled by pilot or relay valves.-In injectors using exhaust steam for supplying feedwater to locomotive boilers, the valve preventing intercommunication between the exhaust or auxiliary live steam inlets to the steam chamber is substantially free from unbalanced pressure. The chamber 11, communicating with the exhaust steam nozzle 3, Fig. 1, has a valve-controlled inlet 12 for exhaust steam, while auxiliary live steam may be admitted from a passage 14 by ports 13. Supplemental live steam can be supplied to the nozzle 16 through the passage 17. The exhaust-steam inlet 12 is controlled by a hollow sleeve-valve 20, sliding in the cylindrical extension 19 of the chamber 11 and coacting with an annular seating 24 formed on a member 23 screwed into the central portion 22 of the housing. The member 23 forms a cylinder in which slides a piston 27 on the stem 26 of the valve 20. The valve is operated by fluid pressure through a conduit 30, 31 and by a spring 32. Leakage of pressure fluid from the cylinder when the valve is open is prevented bv the piston seating against an annular face 28 in the cylinder. Owing to the consruction of the valve, the pressure thereon is substantially balanced at all times, so that a light spring 32' may be used, the operating cylinder may be small, and the working thereof smooth. In a modification, the valve 20 is spaced from the extension 19 and the spring 32 is positioned between them, bearing against a shoulder on the valve and a backing-ring which is screwed into the inlet 12 and on which the valve slides. In a further modification, the valve 20<c>, Fig. 3. is arranged transversely of the housing, sliding in a cylindrical casing 34 which communicates with the chamber 11, and seating against an annular face 37. In another modification, a doubleseated valve 46, Fig. 6, is used having a stem 48 guided in the controlling cylinder 43 and in a backing plate 50 screwed into the inlet 12.
Patent GB-324557-A (GB)
Title: Improvements relating to operaglasses
IPC: G02B23/18
Filed: 1929-03-04
Abstract: 324,557. Morris, E. E. March 4, 1929. Opera-glasses. - To form identifying marks not easily removed a sheet, from which the metal barrel of an opera glass is to be. made, is stamped with an inscription so that the surface of one face is pressed into or beyond the plane of the other face. The sheet is then bent to the requisite shape and the meeting edges are secured together.
Patent GB-1414751-A (GB)
Title: Telescopic spectator seating
IPC: E04H3/12
Filed: 1973-02-13
Abstract: 1414751 Telescopic stands STERLING FOUNDRY SPECIALITIES LTD 13 Feb 1974 [13 Feb 1973] 6963/73 Heading E1A In telescopic spectator seating comprising a plurality of wheeled platforms 8, 8a, 8b of staggered height so that they may be nested together or extended to form a stepped seating arrangement, at least one platform 8 carrying at least one chair or bench 6 has some so mounted thereon that it may tip backwards through 180 degrees to lie on the platform. The seat is pivoted at 7 to side brackets 5 which is faced by a plywood apron 9; the backrest 10 also being pivoted to the brackets 5 and being adapted to lie on the platform 8 during storage.
Patent GB-621100-A (GB)
Title: Improvements in or relating to automatic telephone systems
IPC: H04Q3/58
Filed: 1947-03-13
Abstract: 621,100. Automatic exchange systems. ERICSSON TELEPHONES, Ltd., and DRYSDALE, L. H. March 13, 1947, No. 6964. [Class 40 (iv)] In a two-motion selector of the rectangular release kind with provision for digit absorption, in order to allow the selector to be set correctly although at the beginning of a particular impulse train it may not have completed its release from a setting determined by a preceding impulse train, the setting of the selector is controlled by an auxiliary switch stepped by incoming impulses. As shown, the selector may absorb up to two digits and may discriminate between local and junction calls on the first, second or third digit. Relays A (not shown) and B operate upon seizure and the first digit is repeated by relay A to the stepping magnet of the auxiliary switch DS and goes also over a main exchange junction seized by an associated hunting switch. Dialling relay C operates on the first impulse of the train and completes a circuit to earth via a release alarm relay in wire 12 for the vertical magnet V which operates and holds over resistance YA, wiper DS3, wiper VW1 of an auxiliary bank VC of the selector until the succeeding impulse is received to advance the switch DS to its next position. The magnet reoperates over wire 12 and the action is repeated until the end of the train. The switch DS may be individual or may be common to a group of switches and in the former case may be used for multimetering. Discrimination. If the first digit is other than 4, a circuit is made over wiper VW2 and a terminal field TF for relay JD if the digit indicates a junction call or relay LD if it indicates a local call. Relay JD prevents operation of the vertical magnet by subsequent digits. Relay LD causes the selector to hunt over the selected level for a local second selector. Digit absorption. If the first digit is 4, a circuit is made over wiper VW2 for DA which makes a stepping circuit for the rotary magnet R to effect release, operates OA to rearrange the connections to the terminal field and homes the switch DS. A second digit coming in before the selector is fully restored resets the switch DS and the vertical magnet V is connected up by the relapse of DA when release is complete and then operates by self-interruption until it catches up the switch DS. If the vertical magnet V is still behind at the end of the train, C holds over an intermittent circuit in series with it. The connections to the terminal field may be further modified by OB if the second digit is absorbed. Specification 481,671 is referred to.
Patent GB-350009-A (GB)
Title: Improvements in the automatic isolation of parallel three-phase electric power transmission lines
IPC: H02H7/26
Filed: 1930-03-04
Abstract: 350,009. Protective cut-out systems. VICTORIA FALLS & TRANSVAAL POWER CO., Ltd., Consolidated Buildings, Fox Street, Johannesburg, South Africa. March 4, 1930, No. 7104. Convention date, Dec. 21, 1929. [Class 38 (v).] For the protection of long parallel-connected transmission lines 4, 5 connecting bus-bars 2, 3 an electrically-interlocked, discriminating, faultprotection relay-arrangement 12, 13, 19 is provided to open one only of the circuit-breakers 7, 9 at the generator end. Underload relays 38, 39 are provided to open the corresponding circuit-breaker 8 or 10 at the far end. The relay 19, which may be a reverse-power relay but is shown as an earthleakage relay, closes on fault one of its sets of contacts 19, 20 or 21, 22 and completes a local circuit to energize one of the time-lay relays 12, 13 through the normally-closed lower contacts of the other relay. If the fault is on the feeder 4, contacts 20, 21 are closed and the relay coil 23 energized through the contacts 29, 30 of the other relay. The relay 12 closes at once and completes the tripping circuit for the circuit-breaker 7. If a fault appears on the feeder 5 (now carrying the load) its circuit-breaker will not be tripped until the relay 12, under retardation, has closed the contacts 27, 28 again. This time interval is long enough normally for the fault to be burnt out. At the far end of the feeder 6 current supplied to the fault from the healthy feeder is of substantially reduced value in at least one of the conductors (i.e. the healthy conductor-the system is not applicable to the unusual case of a fault on all three conductors) and, in consequence, one or other of the low load relays 42 releases its armature to complete the tripping circuit of the circuit-breaker 8. If a period of low load may be normal to the system the contacts of an additional relay 47 is included in the tripping circuit. This relay is energized from all three phases like an earthleakage relay and closes only on fault. The system is stated to be applicable to more than two parallel feeders.
Patent GB-302841-A (GB)
Title: Improvements in or relating to record-card-controlled statistical machines
Filed: 1927-10-28
Abstract: 302,841. Campbell, C., and British Tabulating Machine Co., Ltd. Oct. 28, 1927. Divided on 288,360. Statistical apparatus; sorting cards. - Sorting apparatus of the kind described in Specification 242,654 for sorting Hollerith type cards is modified to dead with code cards of the Peirce type by the combination with it of the translating device of Specification 288,515, the latter being for a translator of the kind described in Specification 270,305. According to the above-stated sorting mechanism all the blades 200 in front of the card 205 are lowered when the magnet 204 is energized; the translator 208 combined with this apparatus is similar to the device described in connection with Figs. 2-4 of 288,515 so that when the card is read by the brush 206, one or more switches in the device 208 are closed and, a complete card cycle later, the magnet 204 is energized and the card is sorted into the correct compartment. The brush 206 is one card-cycle in advance of the position it occupies in the construction of 242,654. A modification is illustrated, corresponding as regards the translator to Figs. 12 and 13 of Specification 288,515, for use with cards which have three fields for sorting purposes.
Patent GB-1030417-A (GB)
Title: Production of spherical uranium nuclear fuel substances
IPC: G21C3/62
Filed: 1963-02-22
Abstract: Spherical uranium nuclear fuel substances are produced by dispersing as a powder in an pil medium, i.e. a hydrocarbon or mixture of hydrocarbons which is liquid at normal temperatures and is immiscible with water, a hydrophilic uranium compound which has low solubility in water, e.g. uranium trioxide, ammonium diuranate and uranium tetrafluoride, blending said oil medium containing said dispersion of powdered uranium compound with an aqueous phase, whereby, on agitating, the dispersed uranium compound is transferred to the aqueous phase and is formed into spherical granules, which granules are then separated from the aqueous phase, e.g. by filtration.  The degree of movement from the oil medium to the aqueous phase can be controlled by the addition of various additives to both the oil medium and the aqueous phase.  Suitable additives which regulate the hydrophilic property of the oil medium are high grade alcohols, fatty acids, fatty acid esters and neutral and anionic inter-face-activating agents.  Suitable additives for the aqueous phase are inorganic acids, uranyl nitrate, uranyl chloride, ammonium oxalate and neutral or ionic interface-activating agents.
Patent GB-954625-A (GB)
Title: Improvements in plugs for plugboards
IPC: H01R13/20
Filed: 1963-02-22
Abstract: 954,625. Two-part couplings. AMP Inc. Feb. 22, 1963 [March 14, 1962], No. 7240/63. Heading H2E. A plug for insertion in a plug-board aperture comprises a cylindrical sleeve, resilient means within the sleeve biasing a detent outwardly through an opening in the sleeve, and a longitudinally movable nose member so that forces tending to push the plug from the aperture effect engagement of the nose member with the resilient means and thus lock the detents in the openings and thus the plug in the aperture. As shown, the resilient means comprise a C-spring 12 having side arms 12a with detents 12b which are biased outwardly through slots 2g in sleeve 2 and a nose member 10 with an enlarged end 10c. Forward movement of the spring relative to the sleeve is prevented by shoulders 12d which engage ridge 2b in the sleeve. The inner adjacent edges of the detent portions 12b are oppositely laterally displaced, as shown in Fig. 5, so that the spring arms can be depressed inwardly to enable the plug to be initially inserted into the aperture. A conductor 6 is crimped into the sleeve and moulded within an insulating shroud 8, and makes electrical connection with a spring contact 14 via nose portion 2e (Fig. 7, not shown). In a further embodiment, Fig. 8 (not shown), the shoulders 12d are omitted allowing relative movement between the spring and sleeve so that the nose member locks the detents whether the plug is pushed or pulled from the aperture. The plug can only be withdrawn from the aperture by depression of .the detents 12b and not just by pulling the cable end of the plug as in the first embodiment.
Patent GB-698082-A (GB)
Title: Apparatus for transforming reciprocating motion into rotary motion
IPC: F16H43/00
Filed: 1950-03-23
Abstract: 698,082. Tops. RENARD, J. F. H. March 27, 1950. [March 23, 1950] No. 7241/,50. Class 132 (iii). [Also in Group XXXIII] The apparatus shown in Fig. 1 which may form a spinning top comprises a hand-operated plunger 4 which may be reciprocated into a bore in the lower portion of the apparatus. Air from the pump passes through the passage 5 and impinges on the vanes 14 on the lower side of the rotor 6 which also carries lifting vanes 13 whereby the rotor is lifted against the abutment 16. The rotor carries a cylindrical cam 15, the lower edge of which bears against the spring-loaded plunger 8 mounted in a bore in the lower portion, so that as the rotor rotates the plunger is reciprocated and causes air to pass through the passage 12 on to the vanes 14.
Patent GB-1534348-A (GB)
Title: Process for the preparation of acrylic and methacrylic acids and catalysts for use in this process
IPC: C07B61/00
Filed: 1976-02-25
Abstract: Acrylic acid or methacrylic acid are obtained from acrolein and methacrolein, respectively, and molecular oxygen at 200 to 600 DEG C in the presence of a catalyst. This catalyst contains essentially tungsten, phosphorus, vanadium, molybdenum and oxygen, but can also additionally contain tin, antimony, arsenic, copper, cerium, boron, chromium, iron, nickel, cobalt, uranium, manganese, silver, rubidium, rhodium, cadmium, bismuth, indium, zinc or lanthane. The use of the abovementioned metal catalyst results in an increase in yield.
Patent GB-346540-A (GB)
Title: Appliance for stretching and pressing neckties and the like
IPC: A47G25/78
Filed: 1930-03-07
Abstract: 346,540. Necktie presses. EVERITT, J., 13, Lever Street, Goswell Road, London. March 7, 1930, No. 7443. [Class 141.] A necktie press comprises a press board a having a tapered groove a<2> of the shape of the broad end of a necktie, a series of tapered strips for insertion in the neckties and a spring-pressed tapered board d fitting into the tapered groove. The board d is provided with a bowed spring e, which is attached at e<2> and is maintained under pressure by a pivoted lever c.
Patent GB-1077741-A (GB)
Title: Electric iron sole plate
IPC: D06F75/38
Filed: 1965-02-22
Abstract: 1,077,741. Electric irons. W. B. ROBINSON. Feb. 21, 1966 [Feb. 22, 1965], No. 7465/65. Heading D1A. The heating elements of an electric iron are separated from the sole plate 10 (e.g. of aluminium or aluminium alloy) by a core plate 17 (e.g. of cast iron or mild steel) in contact with the sole plate and at least partly insulated therefrom by heat insulating material, the sole plate being of higher thermal conductivity than the sole plate. Core plate 17 rests in a recess 16 in sole plate 10, a thin layer 18 of insulating material being sprayed or painted on to the core before the sole plate is attached which may be done by casting. The elements may be embedded in plate 17 which in a steam iron may be of stainless steel.
Patent GB-769685-A (GB)
Title: A drying chamber and kiln for tiling, bricks, ceramics and the like
IPC: F27D13/00
Filed: 1953-03-19
Abstract: 769,685. Continuous brick kilns. ROMANELLI, M. March 19, 1953 [March 22. 1952], No. 7592/53. Class 51 (2). A continuous circular brick kiln comprises a central space 1 for moulding bricks, hollow bricks and tiles, an annular drying space 5 equipped with shelves 8 for the more delicate products and having a section 6 with main ducts 9 and 10 in the floor thereof, and an outer annular chamber constituting the kiln proper provided with removable roof sections 18a and 18b. These latter rest in sand seals on the chamber 7, are raised or lowered by hydraulic jacks 20, and. are transported by trolleys 19, the sections 18a being formed with a compartment 24 formed with ports 25 opening into the chamber 7 and having a fan 26 drawing gases through a normally closed opening 27. Tho sections 18b have pipes 28 supplying pulverized or granular fuel. A plurality of flow ducts 16 and 17 in each outer kiln section open out through ports 16a and 17a respectively in the kiln section 6 between ports 9b and 10b leading to the mains 9 and 10 respectively. A slight suction is preserved in the main 9 by a fan 11 and a slight pressure in the main 10. Portable pipes 30 with valves 31 connect ports 9b and 16a, and portable valve-controlled pipes 34 connect the ports 10b and 17a, with the openings 27 in the roof sections 18a, other ports 10b and 17a being interconnected by pipes each including a fan, Fig. 8 (not shown), whereby the pressure in the main 10 is built up. A continuous closed circulation may be provided by connecting outlets 16a and 17a through pipes 34 to the openings 27. By use of the portable connecting pipes and the movable roof sections, the outer chamber 7 may bo divided up into the usual drying, preheating, firing and cooling zones operated continuously. Correct humidity of the circulating gases is preserved by mixing gases from different zones or by the provision of auxiliary moistening devices. A typical division of the plant into zones is shown in Fig. 1 in which I and III represent loading zones, II and IV drying zones, Va a preheating zone, Vb a firing zone, Vc a cooling zone, and VI an unloading zone.
Patent GB-307468-A (GB)
Title: Flexible shafts for golf clubs and other striking-implements used in playing games
IPC: A63B53/00
Filed: 1929-03-08
Abstract: 307,468. Sippel, C. B. March 5, 1928, [Convention date]. Drawings to Specification. Shafts.-In a golf club shaft comprising a core enclosed in a tubular protective casing, the casing is formed of a number of separate sections of flexible, hard, non-metallic material, relatively long in comparison with their diameter, and arranged end to end. The casing is formed of a hard, flexible non-metallic material such as pyroxylin and has the same taper as the shaft. The parts of the casing may be assembled either before or after application to the core, and are attached to the core either by a wedging action or by shrinking. The ends of adjacent parts may be secured together by lap, butt or threaded joints. The parts of the casing may be differently coloured and when joined by lap joints may simulate bamboo.
Patent GB-1067791-A (GB)
Title: Magnetometers
Inventor: MAXWELL DAVID JAMES
IPC: G01R33/04
Filed: 1965-02-23
Abstract: 1,067,791. Magnetic tests; measuring direct current. SPERRY GYROSCOPE CO. Ltd. Feb.4, 1966 [Feb. 23, 1965], No.7748/65. Headings G1N and G1U. [Also in Division H3] The strength of a magnetic field is measured in terms of the D. C. flowing in the primary winding 2, Fig. 1, of a transformer having a saturable core 1, which is placed in the magnetic field, and having a secondary winding 3 which drives a differentiator and pulse amplifier 4, the output of which operates a bi-stable 5; an integrator 6 being arranged to integrate the pulses from the bi-stable and to supply the resulting sawtooth current to the transformer primary 2. Whenever the core 1 saturates, the resulting discontinuity in the current in the primary causes the differentiator 4 to trigger the bi-stable to its opposite state so that the integrator output changes direction and produces the sawtooth in the primary winding. In the absence of an ambient magnetic field this current sawtooth is symmetrical about a line representing zero current. When, however, the core 1 is magnetized by an ambient field, the oppositely directed currents required to saturate the core in opposite senses cease to be equal and the sawtooth becomes symmetrical about a line representing a finite direct current. This direct current is measured by measuring the voltage drop produced across a "read-but" resistor 7. The bi-stable will free-run at a frequency about half that of the sawtooth in the absence of trigger pulses from differentiator 4, and the circuit is thus self-starting.  The device may be used to measure direct  currents, by making the core 1 in the form of a slotted ring surrounding the current carrying wire, or in the form of a toroid with a winding carrying the current to be measured.
Patent GB-481783-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B29/02
Filed: 1937-03-17
Abstract: 481,783. Forced-flow steam boilers. LA MONT STEAM GENERATOR, Ltd. March 17, 1937, No. 7778. Convention date, March 17,1936. [Class 123 (ii)] In a boiler in which water in excess of steam output is repeatedly circulated by a pump 3, the water first passes through a lower group of tubes 6 subjected to greatly different degrees of radiant heat from the furnace and is then distributed to an upper group of tubes 8 which are, relatively, uniformly heated. The inlet header 5 of the lower tube group is integral with the outlet header 9 of the upper tube group and is separated therefrom by a partition 16. Steam and water mixture may pass directly to the drum 1, or it may first pass through heated sinuous tubes 11 connected to the drum by a tube 13. The pump is run at a constant speed at all boiler loads.
Patent GB-459092-A (GB)
Title: Improvements in yarn winding frames
IPC: B65H54/32
Filed: 1936-03-16
Abstract: 459,092. Winding yarns. ENGLISH SEWING COTTON CO., Ltd., and PRESTON, W., Arkwright House, Parsonage Gardens, Manchester. March 16, 1936, No. 7788. [Class 120 (ii)] In a yarn-winding frame in which a package having a tapering body and conical ends is wound on a tapering bobbin having a conical base, the bobbin B is moved longitudinally on the winding spindle B<2> as each successive layer of yarn is wound thereon by connections from the yarn guide C which contacts with the yarn and is moved away from the spindle as the winding proceeds, the guide C being carried by a traverse rod C<1> slidably mounted in a pivoted arm D carrying a bracket E having a pin or projection e<1> engaging an inclined slot f in an adjustable plate or bracket F on a sliding bar G arranged parallel to the spindle B<2> and carry - ing a forked lever H engaging a groove in the base of the bobbin tube B<1> which has a slot b<3> engaging a pin b<2> on the winding spindle. The inclination of the slot in the plate or bracket F corresponds with the angle of the conical base b<1> of the bobbin and as each layer of yarn is wound it is stepped longitudinally in relation to the previous layer so that the ends of the wound package conform to the angular contour of the base b<1>.