baber/WOPTO huggingface dataset:
Patent GB-1433402-A (GB)
Title: Variable reactors and transformers
IPC: H02M5/12
Filed: 1973-04-11
Abstract: 1433402 Transformers and inductors D L HORE 11 July 1974 [11 April 1973] 17412/73 Heading HIT A single or multi-phase variable reactor, autotransformer or transformer comprises a stator with at least one winding thereon and having a constant air gap with a cylindrical laminated iron rotor D which has longitudinal slots carrying a plurality of short-circuit windings, the relative positioning of the axes of the rotor and stator coils determining the reactance of the stator winding or the flux-linkages of one stator winding with another. A three phase variable reactor, Fig. 3c, comprises phase windings A, B and C, each spanning 120 electrical degrees of the stator, and rotor coils X, Y, Z. A single phase variable autotransformer, Fig. 4a, comprises two stator coils AA<SP>1</SP> and BB<SP>1</SP>, with axes at 90 degrees, connected in series across an input voltage and having a variable output voltage tapped across one coil. In the equivalent three phase version (Fig. 4c, not shown) a second set of phase windings (A2, B2, C2) are added to those shown in Fig. 3c as A, B, and C and are displaced 60 degrees therefrom respectively. Secondary windings (S 1 , S 2 , Fig. 5a, not shown) may be laid in the stator slots in proximity to primary windings AA<SP>1</SP>, BB<SP>1</SP>, respectively in Fig. 4a, and the secondary voltages added algebraically to a primary winding voltage to modify the auto-transformer voltage range (Fig. 5c, not shown) or the secondary windings may be connected in series with a load to provide buck/boost regulation (Fig. 5d, not shown). Equivalent three phase constructions are disclosed (Figs. 5e and 5f, not shown). A single phase variable double-wound transformer, Fig. 6a comprises primary windings P 1 , P 2  each spanning 90 degrees of the stator and alternating with secondary windings S 1 , S 2  also spanning 90 degrees, the interlinkages of flux between primary and secondary windings depending on the rotor position (Figs. 6b, 6c, not shown). The secondary windings may be connected in series with a load to form a buck/ boost regulator (Fig. 6d, not shown). In a three phase equivalent the primary and secondary windings of each phase each span 60 degrees of the stator (Figs. 7a, 7b, not shown) and the rotor has three windings (X, Y, Z).
Patent GB-642129-A (GB)
Title: Manufacture of quinazoline derivatives
IPC: C09B5/44
Filed: 1947-07-02
Abstract: Phthaloyl-quinazoline derivatives are obtained by heating an acylamino-anthraquinone-orthonitrile with phosphorus pentachloride. The products have the general formula <FORM:0642129/IV (b)/1> in which R1 represents the residue originally present in the acyl group and <FORM:0642129/IV (b)/2> represents a phthaloyl residue attached at two ortho positions from 5 to 8.  Compounds containing the quinazoline residue at two positions in the molecule can be obtained by starting from anthraquinones which contain the acylamino and nitrile groups attached to vicinal carbon atoms in each of the phenylene groups of the anthraquinone nucleus.  The acyl residue in the starting material may be aliphatic, aromatic, e.g. a benzoyl residue, or heterocyclic.  The reaction is preferably conducted in an inert and advantageously high-boiling diluent or solvent such as di- or tri-chlorobenzene and especially nitrobenzene.  In examples: (1) 3-cyano-2-benzoylamino-anthraquinone (obtained by heating 3-bromo-2-benzoylamino anthraquinone (which may be obtained by brominating 2-amino anthraquinone and then benzoylating) with cuprous cyanide and pyridine in benzene at 190 DEG  C.) is heated with phosphorus pentachloride in nitrobenzene first at 110-130 DEG  C. and then at 180-185 DEG  C.  After cooling and filtering the filter residue yields 2-phenyl-4-chloro-6 : 7-phthaloyl quinazoline; (2) the same starting mixture as in (1) is rapidly distilled to allow the more volatile products to distil and the mixture is then boiled under reflux.  The product is obtained as in (1); in a similar manner 2 : 6-di-(benzoylamino)-anthraquinone-3.7-dinitrile yields a dichlorodiquinazoline and 2 - (para - nitrobenzoylamino) - anthraquinone - 3-nitrile yields 2-(para-nitrophenyl)-4-chloro-6 : 7 - phthaloyl - quinazoline.  1 - benzoylamino - anthraquinone-2-nitrile is also specified as starting material. Specification 476,599 and French Specification 822,194 are referred to.  The Specification as open to inspection under Sect. 91 includes products of the above general formula in which any halogen element is attached at the 4-position and is not restricted to the use of phosphorus pentachloride but refers to the use of any agent which is capable of replacing a hydroxyl group by halogen, e.g. one which converts an acid into its acid halide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-420422-A (GB)
Title: Improvements in axle housings
IPC: B60B37/04
Filed: 1934-06-13
Abstract: 420,422. Railway - vehicle axles. TIMKEN ROLLER BEARING CO., Denber Avenue, Canton, Ohio, U.S.A. June 13, 1934, No. 17463. Convention date, July 7, 1933. [Class 103 (vi)] [See also Group XXXIV] A stationary sectional axle-housing for the axles of rail vehicles fitted with roller bearings D has two separate end sections 9 to which are positively connected a removable intermediate section 10. On removal of the section 10, the end sections can be moved inwardly for the purpose of inspecting the bearings. The section 10 is split longitudinally and has flanges 17 connected by bolts 18. The end sections 9 have extensions 15 fitting the intermediate section to which they are connected by bolts 13 passing through flanges 11, 12 on the end and intermediate sections respectively. Shims 14 enable the bearings to be adjusted. After the removal of the section 10, closure rings 7 must be unbolted before the end sections can be moved inwardly.
Patent GB-499569-A (GB)
Title: Improvements relating to pressure gauges
IPC: G01L19/08
Filed: 1938-06-13
Abstract: 499,569. Pressure gauges. HARCOURT, B. W., and MANN, A. J. June 13, 1938, No. 17468. [Classes 106 (ii) and 106 (iv)] Comprises a construction of indicating " movement " for a diaphragm or Bourdon pressure gauge. A plate a is mounted in spaced relationship to the housing b containing the diaphragm c. A pin u extending from the diaphragm engages a short arm t on a spindle n rotatably mounted on and parallel to the plate a. A long arm w on the other end of this spindle engages an arm x on the spindle i of a toothed quadrant k mounted between the plate a and a plate f spaced from and secured to the plate a. The quadrant engages a pinion m on the pointer spindle. A spring y urges the pinion to keep the arms x and t against their drivers. The spindle n is preferably carried by a bracket p fastened to the plate by screws q of which one is adjustable in a slot to afford zero adjustment. The lever x may be provided with a curved extension forming a steadying inertia mass.
Patent GB-1387121-A (GB)
Title: Volume-booster and apparatus for high-speed operation of automatic process and control valves
IPC: G05B11/44
Filed: 1971-05-27
Abstract: 1387121 Fluid-pressure servomotor systems IMPERIAL CHEMICAL INDUSTRIES Ltd 5 May 1972 [27 May 1971] 17472/71 Heading G3P A volume booster to increase the speed of operation of a process control valve 3 in response to signals from a control nozzle 4 comprises an input chamber 6 to receive the signals and containing first and second substantially parallel flexible diaphragms, an output chamber 6a divided into sections connected by a restrictor tube 10, a supply poppet with a seating in the wall of the output chamber connected to an exhaust poppet with a seating in the second flexible diaphragm, a compressed air inlet on the side of the supply poppet remote from the exhaust poppet, and an exhaust channel B leading directly from the exhaust poppet to the atmosphere. The exhaust channel is connected to the two flexible diaphragms and slides relatively to seals in an end-wall of the booster housing and in a wall 9 which forms the two sections of the output chamber. When the pressure controlled by the valve 3 increases, a bellows 1 expands to move a lever 2 towards the nozzle 4 so that pressure is increased in the chamber 6 to lift the supply poppet from its seat and admit air to the actuator for the valve. A decrease in pressure in chamber 6 lifts the seating for exhaust poppet to allow air to escape from the actuator through channel B. In each case, the tube 10 creates a differential pressure between the two sections of the output chamber 6a to keep the supply or exhaust poppet open longer than would otherwise be the case so that the change in pressure on the actuator is enhanced. In a second embodiment, the flow from the nozzle is controlled by a Piezo-electric device or by a moving coil or torque motor supplied by an amplifier which receives a feedback voltage from a transducer on the spindle of the valve 3 in addition to an input voltage or current. The input to the system may also be obtained from a digital to analogue converter or from a stepping motor. The poppet assembly in all embodiments is constructed entirely of nylon.
Patent GB-1383725-A (GB)
Title: Windscreen wiper harness
IPC: B29C67/00
Filed: 1973-04-12
Abstract: 1383725 Windscreen wipers TRICO PRODUCTS CORP 12 April 1973 [13 April 1972] 17629/73 Heading A4F A unitary windscreen wiper harness, comprising spans 16, 18 connected by resilient flexible portions 26, is formed of thermoplastics material under heat and pressure in a mould with the spans 16, 18 displaced (as illustrated) from their operative relative positions, and the harness is removed from the mould while the material is pliant, and the spans moved into their operative relative partially overlapping positions and retained there until the thermoplastic material has set. For retaining the spans in their operative positions ears 28 on the span 16 embrace spans 18 and have projections 30 Fig.3 (not shown) engaging in recesses 34 in the span 18 claws 52 are provided at the ends of the spans 18 for attaching the harness to a wiper element.
Patent GB-856398-A (GB)
Title: Multiple-position reclining chair
IPC: A47C1/0355
Filed: 1959-05-25
Abstract: 856,398. Seats. LORENZ, A. May 25, 1959 [July 10, 1958], No. 17670/59. Class 52(2) In a reclining chair having a rigid seat and backrest unit 20 and an extensible leg-rest 36, the unit pivots to an intermediate position, with extension of the leg-rest, about a first axis and then pivots to a reclining position about a second axis disposed rearwardly of the first axis. As shown in Fig. 1, a downward extension 22 rigid with unit 20 is pivoted at 24 to the forward end of lever 26 normally resting on an abutment 30 and pivoted at 28 by its rear end to the chair frame. The legrest 36 has an actuating linkage as shown pivoted to the chair frame at 58, 64 and having a pivotal connection 56 with the unit 20. In operation, the unit first tilts rearwardly about pivot 24 until extension 22 meets abutment 32 fixed to lever 26, and the leg-rest is extended fully to its end position limited by stop 68 meeting link 48. Further tilting causes unit 20, extension 22 and lever 26 to pivot about pivot 28 until the unit meets stop 34 on the frame, the leg-rest remaining fully extended. As shown in Fig. 3, seat and back unit 120 is mounted by pivoted links 122, 123 on a lever 126 normally resting on abutment 130 and pivoted to the chair frame at 128. The leg rest is carried on a forward extension of lever 126 and is actuated by a downward extension of link 123. In operation, the unit 120 first swings about pivots 124, 127 until link 122 meets stop 132 on lever 126, and then the unit 120, the links and lever 126 swing about pivot 128. As shown in Fig. 5, a downward extension 222 of seat and back unit 220 is pivoted at 224 to a lever 226 mounted on the chair frame by a pair of links 276, 278 of unequal length. The unit first swings about pivot 224 until extension 222 meets stop 232 on lever 226 and then the assembly swings about the pivots connecting links 276, 278 to the chair frame. As shown in Fig. 7, downward extensions of the seat and back unit 320 each carry a pin 333, 335 working in slots 337, 339 formed in a plate 310 fixed to the chair frame and the leg-rest is actuated by a link 345 connected to the rear corner of the unit 320. In operation, the unit 320 tilts to an intermediate position defined by pin 335 resting in the bottom of slot 339 and by pin 333 reaching the upper end of the first part 337a of slot 337. It then tilts to a final position about pin 335, the pin 333 riding along the upper part of slot 337 which is formed as a circular arc about the bottom of slot 339.
Patent GB-458753-A (GB)
Title: Improvements in and relating to coin operated gas and like meters
IPC: G07F15/08
Filed: 1935-06-20
Abstract: 458,753. Prepayment mechanism for meters. UNITED GAS INDUSTRIES, Ltd., 51, Lincoln's Inn Fields, SMITH, E. W., 186, Kennington Park Road, and CHARLES, A., The Meter Works, Rowan Road, Streatham Vale, all in London. June 20, 1935, No. 17682. [Class 27] Price - changing mechanism.-In a prepayment meter having a changespeed gear between the meter and quantity mechanisms for automatically changing the tariff after a given consumption or time, the gear elements of the change-speed gear are always in mesh, and for one ratio of transmission move as a locked unit by direct engagement of a pawl with one of the gear elements, the pawl being disengaged tor the second ratio, and the change effected without interruption in the transmission. As shown, a worm a driving a worm-wheel b carrying the planet elements of the quantity mechanism, is loose on a meter driven shaft c. The worm and shaft are connected by a change-speed gear comprising sun-wheels g and f, to which they are respectively secured, and planetwheels e<1> and e<2> in a loose carrier d. Initially, the planet-wheel e<1>, or a sun-wheel, is locked by a spring-biassed pawl h on the carrier d, so that a solid drive occurs between the shaft c and worm a. After a predetermined consumption, a stop-arm i is moved to engage the pawl h so that the planet-wheel e<1> is unlocked, the planet carrier d, however, being then held by the stop-arm i : a reduced drive is thus transmitted from the shaft c to the worm a by way of the gears f, e<2>, e<1> and g. The stop-arm i is pivoted at i<2>, and is urged towards the change-speed gear by a spring i<3>. During the initial period, a notched disc l engaging a projecting pin i<1> on the arm i, holds the arm away from the change-speed gear. The disc l is loose on a spindle j, but is connected for limited relative movement with a second notched disc k, fast on the spindle, by a pin-and-slot connection l<1> and a spring k<3>. The spindle is slowly rotated through worm gearing and a shaft q<3> by a pinion fast with the planet carrier d, so that, after a predetermined consumption has occurred at the higher rate, the notch in the disc l reaches the pin i<1>, permitting the stop arm i to engage the change-speed gear to allow delivery at a lower rate. The spindle j extends to an opening in the front plate n of the meter for operative engagement with a key whereby the mechanism can be re-set and adjusted. The slot in the disc k has inclined edges for raising the pin il back on to the periphery of the disc l during re-setting. The set position of the shaft j and disc l determines the amount to be delivered at the higher rate. The spindle may, alternatively, be driven by a clock mechanism, so that the change in tariff occurs after a predetermined time irrespective. of the consumption.
Patent GB-563597-A (GB)
Title: Improvements in or relating to snow ploughs
IPC: E01H5/08
Filed: 1942-12-14
Abstract: 563,597. Snow ploughs. LEWIN, W. J., and LEWIN ROAD SWEEPERS, Ltd. Dec. 14, 1942, No. 17749. [Class 107] A snow plough comprises a vehicular unit carrying a scoop which, alone or in combination with rotary means, displaces high level snow to join low level snow, and a rotary feed worm mounted in the lowest part of the scoop to deliver the snow to a rotary device which throws same through a snow delivery shoot. In Figs. 1 and 2, a track 10 supports a scoop 14 with splayed side walls 15 and a. rear wall 17, the upper part of which is inclined forwardly and upwardly so as to force upper snow downwards as the truck advances. A rotary worm 18 then moves the snow laterally to a rotary thrower 22 which throws it up a shoot 26 provided with an adjustable cowl to deflect the snow laterally clear of the truck. The worm is driven from the engine 11 through shaft 33, gear-box 32, shaft 31 and chain 29, and the thrower at a higher speed from the gear-box through chain 34. In another form, the scoop is of less height and pivotally supports an adjustable forwardly and upwardly inclined endless conveyer of the full width of the scoop and provided with an endless chain driven by chain from the shaft 31 and carrying blades which force the upper snow downwardly to the worm &c.
Patent GB-828263-A (GB)
Title: Fuel injection system for internal combustion engines
IPC: F02D9/00
Filed: 1957-06-04
Abstract: 828,263. Fuel distributing systems. BENDIX AVIATION CORPORATION. June 4, 1957 [Aug. 16, 1956], No. 17762/57. Class 7(6) A pump 22 Fig. 1 supplies fuel at a pressure varying with engine speed through a metering restriction 46 to the interior of a rotary valve 12 having a port 26 cooperating with ports 28 connected to the injection nozzles 32, the flow through port 26 being controlled by a sliding piston 14 subjected to the fuel pressure in the rotary valve, which varies with engine speed, and to the fuel pressure in a chamber 40 which varies with engine speed and with induction pipe pressure. The pump 22 delivers into a chamber 42 which is connected through the metering restriction 46 and ports 48 to the interior of the rotary valve 12 and through a passage 44 containing a restriction controlled by a valve 50 actuated by induction pipe pressure to the chamber 40 which is also connected through a restricted passage 61 to the pump inlet. The valve 14 is moved by the pressures in chambers 40, 38, to adjust port 26 until these pressure are equal. A plunger 62 is moved downwards during overrunning by induction pipe pressure, transmitted through passage 66, to engage piston 14 and cut off the fuel supply. In a modification, Fig. 4, the main pump 308 is supplied by a booster pump 304 and the valve 332 actuated by induction pipe pressure is in the fuel passage 326 leading to the interior of the rotary valve. The chamber 324 above piston 322 is connected to the pump inlet through passage 342 containing parallel restrictions 344, 346, and spring- loaded valves 348, 350, of which valve 348 is open during normal running whilst valve 350 only opens if the fuel pressure exceeds a predetermined maximum. A plunger 352 actuated by a solenoid in the starting. motor circuit depresses piston 322 for starting enrichment and a solenoid-actuated valve 356 may be energized during overrunning either by closing a manually operated switch 358 or an induction passage pressure responsive switch 360 to close restriction 330, thereby lowering the pressure in chamber 324 so that piston 322 moves to cut off the fuel supply. The control piston 14 or 322 may be spring-loaded.
Patent GB-1182503-A (GB)
Title: Over Travel Control Mechanism for Electromagnetic Stepping Switches
IPC: H01H51/08
Filed: 1967-04-18
Abstract: 1,182,503. Electromagnetic stepping relays. GUARDIAN ELECTRIC MFG. CO. 18 April, 1967 [5 Oct., 1966], No. 17839/67. Heading H1N. A stepping relay with a driving mechanism similar to that described in Specification 649,143 has an overtravel control mechanism omprising a spring-loaded lever 40 positioned to intercept the pawl 30 at a predetermined point in its arcuate path of movement. The shaft (not shown) on which the ratchet-wheel 35 is mounted may be rotated by hand when the electromagnet 11 is energized since the pawl will be moved to one side (Fig. 2E, not shown) against the bias of springs 37 and 41. The lever 40 has a window 47 through which the end of the pawl 30 passes, the predetermined point of interception being set by an adjustable eccentric (44) engaged by the lever in its rest position (Fig. 2, not shown).
Patent GB-179317-A (GB)
Abstract: 179,317. Lamplough, F. Feb. 4, 1921. Rotary and oscillating valves; toothed gears.- An oscillating cylindrical valve 1 for internalcombustion and other engines is actuated by means of a pinion 4 engaged at opposite sides by racks 25, 26 reciprocated by cams 29, 30. The valve is made thin and has the port 7 open to the cylinder when a high pressure exists therein, so that this pressure expands the valve against the inlet and exhaust ports 13, 14. These ports lead to passages 17, 18 closed by caps 19, 20. The valve may have circumferential cuts at the ends of the port 8. According to the Provisional Specification, the invention may be applied to pumps and compressed-air engines.
Patent GB-672721-A (GB)
Title: Improvements in heat exchange apparatus, and elements therefor
IPC: F28D1/047
Filed: 1949-07-07
Abstract: 672,721. Tubular heat-exchange elements; heating air. UNGARISCHE RADIATOREN FABRIKS AKT.-GES. July 7, 1949 [July 10, 1948], No. 18019/49. Class 64(iii) In a heat exchange element, a tube 8 has at least one longitudinal rib associated with the edge of a fin 9, one of the rib and edge being formed as a groove and the other as a tongue so that a connecting seam spaced from the tube proper is formed when the groove is compressed about the tongue, e.g. by cold pressing, rolling or hammering. As indicated in Fig. 1, the connection between tube and fin or fins may take various forms. The grooves may be of rectilinear section, with lips 10, or of cylindrical section, with lips 15. In the latter case, to correspond, the tongue 14 is beaded. Strips are cut in the fins 9 and some, e.g. the alternate ones X, are pressed out from the plane of the fin so that the strips lie in at least two planes. Through the slots of the resulting grid, a heat exchange medium may flow transversely to the plane of the fin. The outer edge of each fin is also grooved or tongued for joining to the tube 8 or 9 of another element. Tubes may be joined by pairs of parallel fins, the ribs being formed with pairs of grooves, Fig. 5, (not shown). A cylindrical-heat exchanger of nearly elliptical cross-section is formed by helically coiling a finned tube, Figs. 6, 8. A single, slotted fin 9 may extend between adjacent convolutions as shown in the top halves of Figs. 6, 8 or a double fin may be used, joined at 10 as shown in the bottom half of the figures. When the cylinder is closed at the top and bottom a chimney effect causes cold air to flow in through the bottom fin slots and out at the top slots. The Specification as open to inspection under Sect. 91 comprises also fins 9 of aluminium, copper or alloys thereof, varnished or anodized against corrosion and joined, e.g. by spinning, to rustless steel tubes 8. The fins between pairs of tubes may be angular in section, Fig. 6 (Cancelled), (not shown), and there may be several fins between each pair of tubes, two to a groove, Figs. 7, 8 (Cancelled), (not shown). When two or more fins are arranged in one groove they may lie at an angle to one another. As shown in Fig. 10 (Cancelled), a space-heating radiator or liquid cooler comprises rows of finned tubes connected between headers 20, the fins 9 not extending over the whole tube length. The row of tubes on one side may be omitted and replaced by a wall between the headers. Fig. 9 (Cancelled), (not shown). To form a panel, a tube is bent in serpentine form, fins being joined between tube lengths, Fig. 14 (Cancelled), (not shown). The heat-exchanger may be kept in rectilinear or rotary motion. This subject-matter does not appear in the Specification as accepted.