baber/WOPTO huggingface dataset:
Patent GB-446293-A (GB)
Title: Improvements in electric ceiling, floor and wall lamps
IPC: F21V17/00
Filed: 1934-10-30
Abstract: 446,293. Glass manufacture. HARVEY, C., 22, Fitzroy Square, and MAITLAND, W., 20, Buckland Crescent, Belsize Park, both in London. Oct. 30, 1934, No. 31134. Drawings to Specification. [Class 56] [See also Group XI] For use in an electric ceiling, floor, or wall lamp, a relatively large bent plate glass dish with a central opening is formed by heating a sheet of plate glass to bend it into a mould, a hole is cut in the centre, the edges are ground and polished, the glass is again heated to remove stresses, and after cooling it is inspected by an optical strain viewer.
Patent GB-823325-A (GB)
Title: Continuous process for producing alkyl aromatic hydroperoxides
IPC: C07C409/10
Filed: 1957-10-04
Abstract: In a process for the production of hydroperoxides having the structure <FORM:0823325/IV (a)/1> R1 and R2 being lower alkyl groups and Ar an aryl or alkaryl radical, by treating the corresponding hydrocarbons with air or other free oxygen-containing gas, a reactor is employed wherein a plurality of serially-connected bodies of a solution of the hydroperoxide in the hydrocarbon float on a single body of dilute aqueous alkali, and the oxygen-containing gas is passed through substantially the entire length of each of the bodies of solution, while the hydrocarbon to be oxidized is introduced into the first body of the series, and a solution of the hydroperoxide in the hydrocarbon is withdrawn from the last <PICT:0823325/IV (a)/1> <PICT:0823325/IV (a)/2> body.  A concentration-gradient of hydroperoxide is maintained in the reactor, ranging from 1 to 10% by weight of hydroperoxide in the solution in the first zone to about 15 to 40% in the last zone.  A temperature-gradient, in the range of 200-250 DEG  F., is preferably maintained in the series of oxidation zones, the highest temperature being maintained in the first zone. The process is preferably operated at a superatmospheric pressure of 20 to 200 p.s.i.g.  The process may be used for the production of hydroperoxides from cumene, cymene, diisopropyl-benzene, secondary butylbenzene, and isopropyl-naphthalene.  The reactor shown is divided into four oxidation zones A, B, C, D, by intersecting plates 21, 22, which leave an undivided space at the bottom of the reactor, and a free gas space at the top.  A spray-nozzle 23 is mounted above each oxidation zone; and aqueous alkali is supplied to the nozzles through line 24.  An aqueous phase is maintained in the undivided space at the bottom of the reactor, and reaches to a level 38 just above the lower ends of plates 21, 22.  Aqueous alkali is withdrawn from the reactor via line 40, and part of it is recycled to nozzles 23 via line 42.  An air-distributer 36 is provided in the lower portion of each oxidation zone; air being supplied to the four distributers through line 37.  If desired, the air-distributors may be placed below the surface of the aqueous liquid.  Spent gas leaves the top of the reactor through line 25.  Oxidation zone A is connected to zone B by gate 30; zone B is connected to zone C by line 31 and gate 32; and zone C is connected to zone D by gate 33.  Each zone is provided with a cooling-coil 26 supplied with water, a heating-coil 27 supplied with steam, and an emergency cooling-coil 28.  In an example, cumene is introduced into zone A through line 29; and aqueous sodium carbonate having a concentration of 0.5% by weight is supplied to the nozzles 23.  Zones A, B, C and D are maintained at 241 DEG  F., 232 DEG  F., 226 DEG  F. and 223 DEG  F., respectively. The average residence-time of cumene in each oxidation zone is 1.65 hours.  A 25% solution of cumene hydroperoxide in cumene is withdrawn from zone D through line 34.
Patent GB-1475594-A (GB)
IPC: B65B41/00
Filed: 1974-07-15
Abstract: 1475594 Feeding webs G D SpA 15 July 1974 [21 Sept 1973] 31211/74 Heading B8R An apparatus for feeding a wrapping machine in which wrappers are severed from webs by a cutter C1, C2 comprises a pair of web rolls B1, B2 which are used alternately to supply webs N1, N2 by means of rollers r1, r2 or r1<SP>1</SP>, r2<SP>1</SP> and R1, R2 to the cutter C1, C2 whereby one roll B1, B2 is in a stand-by position and its web N1, N2 is fed with its leading edge Y, Y<SP>1</SP> closely following in an abutting position the trailing edge of the expiring web N1, N2. In operation the trailing edge of the expiring web N1, N2 is sensed by a device F1, F2 which causes a contact (T1, T2, Fig. 2) to be closed and a signal to be fed to a second input of an AND-gate associated with a memory producing pulses which correspond to the distance between auxiliary cutters c1 c2; c1<SP>1</SP>, c2<SP>1</SP> and the leading edges Y, Y<SP>1</SP>, the distance in turn corresponding to an integral number of sheets S forming the wrappers. The memory is used to drive, e.g. the auxiliary cutter e1, e2 when the web roll B1 has expired and following a preset number of pulses to drive the rollers r1<SP>1</SP>, r2<SP>1</SP>, to feed the web N2 from the replacement web roll B2 in an abutting relationship with the trailing edge of the expiring web N1. In a modification the cutter C1, C2 may be dispensed with and the cutters c1, c2; c1<SP>1</SP>, c2<SP>1</SP> used alternately for cutting the webs N1, N2 into sheets S which are fed to a common location, e.g. the nip of rollers R1, R2.
Patent GB-879174-A (GB)
Title: Improvements in or relating to arrangements for determining the free or busy state of a line in a telecommunication system
IPC: H04Q3/00
Filed: 1958-09-30
Abstract: 879,174. Automatic exchange systems. SIEMENS & HALSKE A.G. Sept. 30, 1958 [Sept. 30, 1957; Feb. 5, 1958], No. 31216/58. Class 40 (4). Supervisory current flowing in a line is detected by a transistor connected across a resistor in the line. The arrangement enables current differences to be detected independently of voltage differences on the supervisory line. As shown in Fig. 1 links between the row wires of relay matrices F1, F2 have resistors R1 across which the emitter and base of a transistor T are connected. The collector circuit of T comprises a voltage limiter R2, R3, G1 connected to voltage sources U1, U2. With the link idle and no current flowing T is cut off and terminal a has the potential of source U2. When the link is busy T conducts in response to current in R1 and enables G1 to conduct so that terminal a rises to the potential of source U1. A single link or a group of links may be artificially busied by providing a relay which disconnects the source U2 and replaces it with source U1. The resistor R1 may be constituted by the holding coil of a cross-bar switch such as the dry reed switch described in Specification 797,913. When in shunt across a holding coil the transistor should be in series with a limiting resistor.
Patent GB-1144543-A (GB)
Title: Method and device for indicating electric signals, in particular the electric time signals of a watch
IPC: G04G9/06
Filed: 1967-07-07
Abstract: 1,144,543. Capillary electro-meters. CENTRE ELECTRONIQUE HORLOGER S.A. July 7, 1967 [Aug.4, 1966; March 29, 1967], No.31341/67. Heading G1Q. [Also in Division G3] An indicating device operating on the principle of the capillary electro-meter employs three liquid phases (the first and third of which may be of the same liquid substance) arranged in succession in a tube at least part of which is not wettable. In Fig. 1 liquids 4 and 6 are the same or different aqueous electrolytes, liquid 5 is mercury and the tube 1 in which they are contained has a non-wettable section 7. A voltage of the polarity shown causes meniscus 9 to bulge and meniscus 8 to flatten to an extent dependent on the applied voltage, and since the electrolyte can wet the tube walls beyond the portion 7 the position of the mercury for any sufficiently high voltage is such that the mercury extends in a slug of which one end is at the left hand end of the non-wettable section 7 and the other projects into the electrolyte 4. Reversal of the polarity of the input would move the slug in the opposite direction. In Fig. 3, the tube 15 is endless and is everywhere non-wettable, and an insulating region (empty space or insulating liquid) separates the two electrolyte liquids 12, 13. The region 19 occupied by the mercury 11 is divergent-convergent as shown, so that the limiting position for any sufficiently high input voltage is as shown, with one edge of the mercury slug in line with the portion of maximum cross-section. The fact that a sufficiently high input voltage can effectively switch the apparatus from one state to another is the basis for its use as an indicator for a device such as an electric watch (see also Division G3). Figs. 10 and 12 (not shown) depict arrangements for this purpose, which are on the general principle of Fig. 2 but with an annular vessel around which the electrolyte is propelled in stages by successive pulses. Figs. 8, 9 and 18 to 20 (not shown) depict a cruciform arrangement of linked tubes connected to one or more annular tubes in a closed system. Appropriate potentials applied between selected terminals in this latter arrangement cause mercury to flow preferentially along one of the tubes forming the cross. An extension of this principle, in which the cross is replaced by a twelve-limbed star, provides a clock-type indicator.
Patent GB-388865-A (GB)
Title: Improvements in and relating to windows, fanlights and the like
IPC: E04D3/06
Filed: 1931-11-13
Abstract: 388,865. Windows ; ventilators ; glazing. JOHNS, J. H., Cornubia Poultry Farm, Wheal Butson, St. Agnes, Cornwall. Nov. 13, 1931, No. 31456. [Classes 20 (iii) and 137.] Windows are glazed with removable panes housed in upwardly and inwardly inclined grooves d in the vertical sash members, and the upper edge lying behind the horizontal top rail. The front wall of the lower rail has a cut-away centre d<2> to permit insertion of the finger &c. to lift the pane. End drainage holes d<1> are provided for the bottom groove. Removable wedges h<1> in holes over the pane prevent lifting of the pane from the front. Brackets j are provided to hold the frames in selected open positions. Brackets l having inturned ends are adapted to hold the panes in inclined positions for ventilation, the lower edges then being placed in grooves m behind the guides d. The grooves m are drained by holes communicating with the grooves d<1>.
Patent GB-823044-A (GB)
Title: Improvements relating to direct current track circuits for railway signalling systems
IPC: B61L1/18
Filed: 1955-11-03
Abstract: 823,044. Railway signalling track circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., DUCKITT, H., and TILLOTSON, P. Oct. 26, 1956 [Nov. 3, 1955], No. 31462/55. Class 105. In a D.C. track relay circuit having one, viz. 11, of the track rails continuous as the return for the traction A.C. current, the other rail 12 being divided into sections by insulating joints 13, 14, the current feed set comprises two secondary cells 20, 21 arranged to be charged alternately, preferably for equal periods, through a full-wave rectifier 17 from an A.C. source 19, by a time-switch 23 controlling connection of the cells alternately to the track rails and to the rectifier 17 output terminals so that as one cell, e.g. 20, is charging the other cell 21 feeds the track circuit and vice versa and at no time is the rectifier 17 connected across the track rails and no half-wave rectification can take place in the rectifier due to traction A.C. voltage build-up across the rectifier output terminals, which would increase current fed to the track circuit and reduce the sensitivity thereof to the entry of a vehicle into the section. In the event of a breakdown of the A.C. supply 19, the cells 20, 21 are connected to feed the track circuit in parallel. As shown, each of a pair of repeater relays 24, 25 has an energizing circuit which includes a change-over contact device 23a of the time switch 23 so that operation of the switch opens the energizing circuit of one relay, e.g. 24, and closes that of the other relay, viz. 25, whereupon relay 24 releases and at front contacts 24b breaks the charging circuit of the cell 20, at back contacts 24b connects the cell 20 to the track rails and at back contacts 24a connects the relay 25 to the rectifier. Relay 25 picks up and at its back contacts 25b breaks ts feed circuit to the track rails and at its front contacts 25b connects the cell 21 to the rectifier 17 through the changed-over contact 23a. At back contacts 25a the energizing circuit of relay 24 is opened. A variable resistance 22 is included in the charging circuit and a variable resistance 29 regulates the feed of direct current to the track and a protective choke 30 limits any traction A.C. current circulating through the cells. In an alternative embodiment (Fig. 2, not shown) the time switch 23 has associated with each cell a set of changeover contacts operable in sequence as by cam devices so that the contacts associated with the charging cell connects that cell in the feed circuit before the other set of contacts change over to disconnect the feeding cell from the track circuit.
Patent GB-244773-A (GB)
Title: Improvements in or relating to safety devices for water tube boilers
IPC: F22B37/42
Filed: 1925-12-14
Abstract: 244,773. Siemens - Schuckertwerke Ges. Dec. 18, 1924, [Convention date]. Actuating mechanism.-To maintain the circulation of the working medium through a watertube boiler 1 when the engine supply valve 3 is closed, a safety valve 6 in the steam pipe is automatically opened immediately upon the closing of the supply valve. Spring operated supply and safety valves are held respectively in their open and closed position by interconnected catches 9, 11. When the catches are withdrawn by mechanism 7, the supply valve closes, and the safety valve opens. The steam then passes direct to the condenser 5. The safety valve throttles the steam, the degree of throttling being adjusted by a screwed spindle 15. The safety valve may be connected to means for cutting off the supply of fuel to the furnace or for damping combustion.
Patent GB-1480145-A (GB)
Title: Fluid flow meter
IPC: G01F1/28
Filed: 1974-07-18
Abstract: 1480145 Measuring fluid-flow GERVASE INSTRUMENTS Ltd 14 July 1975 [18 July 1974] 31946/74 Heading G1R A meter, particularly for measuring low-pressure gas flow, comprises two vanes 2, 3 pivotable by the flow about a diametral axis 4 against biasing means 5, 6 towards the axial plane through the axis 4. The flow may be measured by pressure tappings 8, 9 and a diaphragm 11 operating on indicator 13, 14 or by mechanical means connected directly to at least one of the vanes (not detailed). The meter could also be used for lowpressure liquids.
Patent GB-512044-A (GB)
Title: Improvements in motor fuels
IPC: C10L1/18
Filed: 1937-11-20
Abstract: 512,044. Motor fuels. BERESLAVSKY, E. V. Nov. 20, 1937, No. 32007. Void. Convention date, March 4. [Class 91] In the preparation of Diesel and similar fuels by adding a combustion accelerator, the fuel consists of a high boiling distillate of which the total sulphur content is reduced to not exceed 0.25 per cent. by weight. Accelerators specified are ethyl, butyl, amyl nitrates, diacetyl, dipropionyl, di-isobutyryl and valeryl peroxides. Specification 479,969 is referred to.
Patent GB-1435235-A (GB)
Title: Method of succesively winding individual packages of yarn  from a continuous yarn supply
IPC: B65H54/34
Filed: 1974-07-19
Abstract: 1435235 Yarn reserve winding apparatus; continuous supply winder ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 19 July 1974 [27 Aug 1973] 32044/74 Heading D1J A method of winding packages from a continuous supply, such as yarn 2 from an open end spinning unit 5, comprises the steps of introducing the yarn to a suction opening 3, moving a winding body 8 against the yarn and into its winding position on a driving cylinder 12, the body 8 having at least one catching member 8a for the yarn, and then rotating the body 8 so that the yarn is caught and (a) a reserve winding is formed from yarn drawn back through the suction opening, and (b) the main winding is formed from yarn from the supply. On completion of the package a loop of yarn extending both from the completed package and the supply 5 is introduced into the suction opening 3, and the full package is removed. The yarn leading to the full package is then cut and the above steps are repeated. The suction opening is so positioned that the yarn 2 at the commencement of a winding operation moves to the end 8b of the body 8 where the yarn reserve is then wound. A fixed yarn guide 15 may be used to assist in bringing the withdrawn yarn to the end 8b, the guide 15 being out of range of the yarn traverse guide 14. When a sufficient yarn reserve has been wound the attendant closes the suction opening 3 by means of a flap 30 that cuts the yarn being withdrawn from the suction pipeline 4. The portion of the winding body 8 that is to receive the yarn reserve may be roughened, transversely grooved, longitudinally grooved or formed with a circumferential groove.
Patent GB-1383453-A (GB)
Title: Multi-stage bladed compressors
IPC: F04D17/02
Filed: 1973-07-05
Abstract: 1383453 Axial-flow and centrifugal compressors BROWN BOVERI-SULZER TURBOMACHINERY Ltd 5 July 1973 [13 July 1972] 32149/73 Heading F1C In a multi-stage compressor having an intercooler outside the compressor casing, a duct for returning intercooled gas from the intercooler to the compressor is within a duct for conveying gas from the compressor to the intercooler. Gas compressed by an initial set of stages 3-10 passes by way of a duct 13 to an intercooler 14 and returns by way of a duct 15 to a second set of stages 16- 21 (or, in a modification, a pair of centrifugal stages). Duct 15 is within duct 13 so that, the returning cooled gas is heated by the hotter gas passing through the duct 13, whereby condensate in the cooled gas is re-evaporated. For the purpose of accelerating the heating, the droplets of condensate may be diverted against the wall of the duct 15 by providing at least one bend in the duct or by installing guide elements in the duct. The heating of the guide elements by evaporation from the duct wall may also assist the re-evaporation. For the same purpose, a small quantity of gas may be bled from duct 13 to duct 15 via a valve 33, pipe 31 and nozzles 32. As shown, there may be an intercooler 14 on either side of the compressor.
Patent GB-983002-A (GB)
Title: Apparatus for releasing material from packages
IPC: B67D1/08
Filed: 1961-12-14
Abstract: 983,002. Beverage making machines. GENERAL FOODS CORPORATION. Dec 14, 1961 [Jan. 26, 1961], No. 32278/63. Divided out of 983,001. Heading A4D [Also in Division B8] In a beverage making machine material such as soluble coffee is released from a package 17a of a strip of packages 17 carried over a reel 21 formed from a circular plate 22 mounted on a hub 24 and provided with elongated bars 35 with outwardly extending studs 38 which engage holes 41 in the strip by a rotary knife blade 45 mounted for rotation on an axle 46 which rotates in a transverse bore in a blade support 48 pivotable about a rod 60 so as to bring the blade into engagement with the package when the latter is at release position, the released material falling down a shoot 20 to a decanter 16 and the package remnants 43 being collected in a container 42. Pivotal movement of blade support 48 is controlled by means of links 50, 51 connected to an output shaft 49 of blade motor 56 and to the blade control housing 54 so that the motor rotates the knife blade through chain 58 and sprocket 59 and through output shaft 49 the support 48 to pivot on rod 60 to move across the release position and then back to its original position. Bails 62 mounted on a collar 63 fixed to axle 46 for rotation therewith contact and beat a package 17a to assist discharge of the contents and an air blower directed into the upper end of the shoot assists passage down the shoot. Specification 983,003 also is referred to.
Patent GB-382443-A (GB)
Title: An improved mouthpiece for tobacco pipes, cigar and cigarette holders
IPC: A24F7/00
Filed: 1931-11-21
Abstract: 382,443. Tobacco pipes &c. DUNCAN, J. L., (trading as DUNCAN'S), 64, Shudehill, Manchester. Nov. 21, 1931, No. 32340. [Class 130.] In a mouthpiece for pipes and cigar or cigarette holders, having a palate rest a inclined upwards and away from the bowl or holder for engagement with an upper denture, one or more grooves c are provided on the under side for engagement by the lower teeth. A flat upper surface d may be provided for engagement by the upper teeth.
Patent GB-726166-A (GB)
Title: Improvements in control arrangements for a.c. systems
IPC: H02J3/18
Filed: 1953-11-23
Abstract: 726,166. Exciting synchronous machines; automatic power-factor control systems; transformers. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., SCHWARZ, B., and SCHWARZ, K. K. Nov. 23, 1953, No. 32413/53. Classes 35, 38 (2) and 38 (4). A device for compounding the excitation of a synchronous machine or controlling the powerfactor of an A.C. supply, comprises one or more computing transformers each containing two separate magnetic cores, with part of each core surrounded by a common secondary winding, the cores carrying a voltage-excited primary winding being saturated, and the cores carrying a current-excited primary winding being unsaturated and having an air-gap, the output being dependent on the vectorial resultant of the two fluxes. As shown, Fig. 1, for the compounding of an alternator A whose excitation is derived from the output through a rectifier 11, the voltage excited core 6 is saturated by coil 7 in series with unsaturated choke 12, while the current excited core 3 having a gap 5 is excited by a coil 4 carrying a phase current. The resultant voltage generated by these fluxes in the common coil 9 feeds the field 10 of exciter E through the rectifier. By means of this apparatus, the constant " open circuit " component of excitation is provided by the saturated core, and current compounding is provided by the other. Current and voltage transformers may be used if required. Compensation for saturation of the generator is achieved by means of a tapped resistor 13 and non-linear resistor 14, e.g. a dry-plate rectifier; a condenser 15 overcomes non-linearity at low excitations; and heating is compensated by a resistor 16 with a high temperature coefficient situated inside the alternator casing. The control system may operate through a magnetic amplifier, circuits being shown for achieving this. Two two-core computing transformers may be used together in a circuit for powerfactor or phase discrimination in A.C. systems generally. As shown for the correction of power-factor, Fig. 6, the current winding of one of the computing transformers is reversed so that at unity power-factor (or the phase difference pre-set by phase-shifting transformer 120) the outputs of the two transformers are equal in magnitude. Any variation causes unbalance in field windings 23 of a pilot motor 24 to modify the power factor, as by means of a drum controller 26 and a condenser bank 28. The computing transformer may have more than one current excited core for comparison with a voltage excited core.
Patent GB-426361-A (GB)
Title: Improvements in or relating to bracket arrangements for shelves or the like
IPC: A47B57/34
Filed: 1933-11-21
Abstract: 426,361. Brackets. CARLSSON, R. E., 19, Fleminggatan, Stockholm. Nov. 21, 1933, No. 32518. Convention date, Nov. 22, 1932. [Class 52 (v)] An adjustable bracketsupport for shelves &c. comprises an upright 1 bent round to form a sleeve and provided with notches 3 at different elevations, and a bracket member 2 also bent round in a spiral form and formed with two teeth 5, 6 adapted to lock in the notches 3 of the upright in opposite directions. The bracket sleeve is rotated until the teeth are out of engagement and can then be moved vertically to the desired position and locked by the reverse movement. In modifications, the sleeves can be rectangular or triangular in cross-section.