baber/WOPTO huggingface dataset:
Patent GB-938056-A (GB)
Title: Melt spinning
Inventor: BARNETT THOMAS ROSSLYN
IPC: D01D5/092
Filed: 1960-11-18
Abstract: In a melt-spinning process of the type in which a molten synthetic polymer is extruded downwards through a filter pack and multi-hole spinneret or spinnerets, the filaments are uniformly cooled whilst they are being stretched by a stream of gas, especially air, directed radially outwards from a region substantially in the centre of the array of filaments.  The spinneret holes may be arranged so that each filament receives a fresh supply of cooling gas.  Thus the stream of gas may flow radially outwards from a vertical cylindrical surface located either substantially below the centre of a spinneret in which the holes are arranged in a circle or concentric circles, or substantially in the centre of an array of filaments emanating from two or more adjacent spinnerets.  Mean gas velocity at the filaments may be from 25-200 ft./min. and the vertical cylinder may be from 3-20 ins. long.  Where filaments of 5-50 denier are spun, the cylinder is suitably 6-10 ins. long, the cooling gas first contacting the filaments at 1/2 -2 1/2 ins. from the spinneret.  Polyesters, polyamides and polyolefins may be spun, especially polyethylene terephthalate, terephthalic acid copolyesters (e.g. ethylene terephthalate/sebacate copolymer) melting at at least 200 DEG C. and having intrinsic viscosities below 0,50, determined on o-chlorophenol at 25 DEG C., polyhexamethylene adipamide and stereoregular polypropylene.  Apparatus comprises means for forwarding polymer to a melting zone, a pump or pumps for forwarding the melt to a filter and multi-hole spinneret or spinnerets and a hollow porous container into which a gas is introduced under pressure positioned centrally below the spinneret or spinnerets to provide a uniform radially directed stream of gas around the filaments.  The porous container may be a vertical cylinder or cone sealed at the top and having a gas inlet at the bottom, and may be made of stainless steel mesh, or sintered metal particles, e.g. of bronze, porous earthenware or perforated sheets or tubes.  A preferred form comprises a vertical cylinder of stainless steel mesh, fitted with a steel rod extending axially along the whole length of the cylinder, having ten steel mesh discs attached thereto at substantially equal intervals, the discs increasing in diameter away from the inlet port.  Alternatively the spaced meshed discs may be replaced by a solid cone increasing in diameter away from the inlet port.  Specification 533,304 is referred to.
Patent GB-880028-A (GB)
Title: Electrical timing arrangements
Inventor: NICHOLS JOHN WINFRITH DE LISLE
IPC: H03K5/15
Filed: 1958-12-09
Abstract: 880,028. Timing circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 9, 1959 [Dec. 9, 1958], No. 39710/58. Class 40 (1). [Also in Group XIX] A circuit for timing the flashing of a marine beacon or for monitoring a radio beacon signal comprises a series of counter stages 1-5, Fig. 1, driven by a free-running first stage, the first three counter stages being connected via ganged selector switches 20-22 and diodes 17-19 to the reset control of a two-state device 12 which is set when all the stages are in the " 0 " state, the counter being roset by a selected combination of the outputs of the highest stages 4 and 5 through a switch 29 which is ganged with the switches 20-22. For the control of a flashing beacon, the purpose is to provide a timing control such that the number of flashes in each group can be changed but the total time that the lamp is illuminated remains constant for each selection. The device 12 is set by parallel connections from the " 0 " outputs of all the stages through diodes 6-10. When all the stages are at " 0 " the signal, after amplification at 11, sets device 12. One of the selector switches 20- 22 is provided for each of the first three stages and they serve to select one of three gating circuits connected to combinations of output leads of the three stages. The switches are set according to the number of flashes desired in each group, an output being derived at that number which, after amplification, resets device 12. A gate 13 controlled by the two-state device 12 allows the unit pulses from the first stage to pass through when the device 12 is set and these cause flashing of lamp 15. The switch 29, which moves with the others selects one of three diode gate networks connected to three combinations of the stages 4 and 5 so that the counter resets at the selected count. Resetting may be selected at counts of 8, 16, 24 or 32, the number of pulses passing through the gate 13 to flash the lamp then being 1, 2, 3 or 4 respectively. Signal monitoring.-In the form of Fig. 3 a similar counter circuit is used to test that the duration of the marks and spaces in a beacon signal are of correct length. In this form the counter is reset at the end of a space and at the end of a mark. If predetermined excessive counts are reached before this resetting, an alarm is sounded. The two circuits may be combined together, a change-over switch allowing either function to be performed as desired.
Patent GB-954395-A (GB)
Title: Marine oil storage apparatus
IPC: B65D88/78
Filed: 1961-11-07
Abstract: 954,395. Gravity separation apparatus. BETHLEHEM STEEL CO. Nov. 7, 1961 [Nov. 18, 1960], No. 39793/61. Addition to 904,126. Heading BID. [Also in Division E1 An oil/water separator disposed in the ballast water outlet from a submerged storage tank (see Division El) comprises a tank 53 having baffles 69 and 70 defining chambers 71, 72 and 73 and a pipe 74, closed at its upper end, communicating between chambers 71 and 72. Chamber 72 communicates with chamber 73 below baffle 70 which is closed at the top by a plate 77. Chamber 73 is provided with a clean water overflow 64. Ballast water enters the tank through a plurality of conduits, e.g. 62, and rises to the level 78 where the oil is removed by suction conduit 79. A vent conduit 80 leads to a pressure/vacuum relief valve 81.
Patent GB-1125411-A (GB)
Title: Improvements in or relating to aerial circuit arrangements
Inventor: BAKER GILBERT HOWARD
IPC: H03H7/46
Filed: 1964-10-02
Abstract: 1,125,411. Aerials. PLESSEY-UK Ltd. 29 Sept., 1965 [2 Oct., 1964], No. 40206/64. Heading H4A. In a radio (e.g. television) receiver having two or more aerial input sockets, safety requirements relating to maxiumum permissible leakage current and maximum value of resistance to discharge static charges accumulated by isolating capacitors 7 are met by an arrangement in which a single resistor 9 provides part of the discharge path for all the isolation capacitors. One socket 3 is connected to a V.H.F. tuner and the other, 6, to a U. H. F. tuner, a network (which also reduces interaction between the tuners) of resistors 8 connects the sockets. A circuit arrangement for three sockets is described, Fig. 2 (not shown). Components values are given to meet the requirements of British Standard 415/1957.
Patent GB-1111328-A (GB)
Title: Improvements in the after-treatment of polymers
IPC: C08G2/36
Filed: 1965-09-22
Abstract: The thermal stability of a solid oxymethylene polymer containing oxyalkylene groups having adjacent carbon atoms is improved by heating the polymer in solution in a liquid containing water and/or an organic hydroxy compound wherein the solution of stabilized polymer is cooled to cause it to separate into polymer-rich and polymer-poor phases, the phases are separated from each other and solid polymer is recovered from the rich phase.  Alcohols are the preferred hydroxy compounds while modifiers such as ketones, esters, and ethers may be present; aqueous trioxane, aqueous methanol and aqueous isopropyl alcohol preferred.  It is preferred to conduct the treatment at a pH of 7 or higher, i.e. in the presence of a strong base. The copolymer used in the examples is one of trioxane with 2% ethylene oxide.
Patent GB-1014753-A (GB)
Title: Improvements in or relating to automatic weaving
IPC: D03D45/20
Filed: 1961-11-10
Abstract: 1,014,753. Automatic shuttle changing mechanism. BERGEDORFER EISENWERK A. G. ASTRA-WERK. Nov. 10, 1961 [Nov. 10, 1960], No. 40359/61. Heading D1E. In a pick-and-pick loom, particularly for weaving papermaker's felts that are endless in the weft direction, shuttle changing is effected in a drop box having two extra cells, one below the normal cells for receiving the spent shuttle and one above the normal cells for receiving a fresh shuttle. When a photo-electric device 23, Fig. 5, detects a depleted shuttle, corresponding fresh shuttle is released from the magazine 8, Fig. 2, by and electromagnet 18 or 19, the choice of shuttle being controlled by a switch 34 operated by the pattern chain; the fresh shuttle falls on to a platform 61, where it operates a switch 15 which disconnects the detector 23 to prevent initiation of a second replenishment until the first has been completed. Depression of the switch 15 also energizes an electro-magnet 35, which lifts both drop box motion indicator levers 38, 39 so as to bring the bottom extra cell 6a to the level of the shuttle race to receive the spent shuttle; in performing this action, the magnet 35 over-rides the action of the pattern chain, which selects only the middle two (normal) cells of the box. At back centre, the fresh shuttle is inserted into the cell 6b by a pusher 62 and retained by a pawl 63. When the fresh shuttle is to be picked, a switch 55 operated by the pattern chain, and a switch 14 closed by the presence of the fresh shuttle in the cell 6b,energize an electromagnet 40, which over-rides the pattern chain to bring the cell 6b to shuttle race level. Cams on a shaft 45 operate timing switches in the various circuits. A similar control system is described for three shuttles all containing the same kind of weft.
Patent GB-1118888-A (GB)
Title: Improvements in or relating to regenerative heat exchangers
IPC: F28D17/00
Filed: 1966-09-09
Abstract: 1,118,888. Thermal regenerators. BABCOCK & WILCOX Ltd. 9 Sept., 1966 [9 Sept., 1965], No. 40450/66. Heading F4K. A thermal regenerator comprises a group (e.g. C1-C6 or C7-C12, Fig. 2) of regenerative cells through each of which as shown in Fig. 1 a stream FC-FF of heating gas and a stream AF-AC of air to be heated are passed alternately, and which are operated cyclically with the cell cycles regularly staggered so as to provide for a continuous flow of the heat exchanging fluids through the regenerator, means being provided to sense defective operation of one or more cells and to recycle the operation of the remaining cells in a similar and regularly staggered manner. In the cell shown in Fig. 1, valves 148-149 are open permitting hot gas to flow through the cell chequerwork 141, whilst the valves 150, 151 controlling the flow of air to be heated, are closed. The valves are each operated by rotation of a spindle 168 effected by a doubleacting jack (165, Fig. 3). The two jacks associated with the gas valves 148, 149 are actuated simultaneously by a single electro-valve (not detailed) and comprising two windings EOF and EFF (Fig. 5) corresponding respectively to the opening and closing of these valves. Similarly, the jacks associated with the air valves 150 and 151 are actuated simultaneously by an electro-valve comprising windings EOA and EFA (Fig. 5). Fig. 12 shows a group C1-C6 of regenerator cells in which successive cells in the series are changed over to gas or air as the case may be, at 6-second intervals, all the cells in the series being operative. In the event that the reversing valves 148-151 of one or more cells fail to close or open at the time interval predetermined by the timed electrical contacts KO1À2 and KF1À1 (Fig. 6), relays become operative to put the cell out of service and to sound an audible alarm AS (Fig. 6). At the same time, relays are operated to bring the next cell in the series into use, and the remaining cells then continue to operate in sequence with the same time intervals, e.g. 6 seconds, such as shown in Fig. 13B, where the cells C2 and C4 of the group C1-C6 are inoperative. If more than two cells become inoperative, a circuit-breaking relay D3 (Fig. 7) acts to put the whole group out of service. The regenerative chequerwork 141 may comprise e.g. corrugated plates, enamelled plates, glass tubes, glass plates or Raschig rings.
Patent GB-1201026-A (GB)
Title: Improvements in or relating to noise factor measuring or monitoring apparatus for micro-wave receivers
Inventor: SCANLAN MICHAEL JAMES BARTHOLO
IPC: G01R29/26
Filed: 1966-09-12
Abstract: 1,201,026. Noise measuring. MARCONI CO. Ltd. Aug.11, 1967 [Sept.12, 1966], No.40617/66. Heading G1U. The noise factor of a system is measured by injecting into the input of the system a noise signal chopped at a predetermined frequency, passing the system output signal through a variable attenuator whose gain is also varied at the predetermined frequency and adjusting the gain until the attenuator output at the specified frequency is substantially zero, the amount of adjustment required being an indication of the system noise factor. In the arrangement described, a signal from a noise source 6 is passed through a chopper 7 and noise coupler 9 to the input of a micro-wave receiver 3, 4. An I.F. signal is passed from the output of an R. F. amplifier and mixer 3 through a variable attenuator 10, comprising a co-axialable in parallel with a diode, to an I.F. amplifier 12, detector 13, narrow-band amplifier 14 and one input of a phase sensitive detector 15. The gain of the attenuator 10 is reduced by output from the oscillator 8 when noise injection occurs by varying the current through the diode. The other input of the rectifier 15 is connected to the oscillator 8 controlling the chopper 7 and the output of 15 is taken to a centre zero meter 16. In a manual system the bias of the diode in the attenuator 10 is adjusted until the meter 16 gives a null-reading, under which conditions the current through the diode, as measured on a meter 11, gives an indication of the noise factor of the system 3. In an automatic system the output of the phase sensitive detector 15 is fed through a D.C. amplifier 17 to control the bias of the diode so as to give a null reading on the meter 16.
Patent GB-1391494-A (GB)
Title: Installation for operating flashing indicator and monitoring  devices in vehicles
IPC: B60Q1/38
Filed: 1972-09-04
Abstract: 1391494 Signalling apparatus on vehicles; amp failure alarms SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 4 Sept 1972 [18 Dec 1971] 40864/72 Headings G4Q and G4N  An installation forming part of a motor vehicle includes direction indicator and monitoring lamps arranged to be lit intermittently by signals from a common, constant frequency pulse generator in the form of an integrated circuit, frequency stabilized oscillator, the signals being connectible to some or all of the lamps via relays and switches. In the embodiment shown the pulse-generator 10 comprises a piezoelectric resonator 11 and is connected to operate a clock 24, a time-switch 25 for controlling vehicle heating, and directionindicator flasher lamps BL, BR. The flasher lamp circuit includes an AND-gate afforded by resistors R1, R2 the latter of which so energized from the vehicle ignition when contacts 202 of the direction-indicator switch 20 (which also has lamp-connection contacts 201) are closed. The AND-gate when open, transmits pulses from the terminal A, via relay transistor 23, to a current-sensitive switch 22 having an indicator pilot lamp KBL connected thereto. When either or both lamps BL or BR fail, the reduced load serves to operate the lamp KBL in a pulsating manner. The closed contacts 201 conduct the pulses passing through the switch 22 to the indicator lamps BL, BR. All lamps BL and BL can be flashed simultaneously from the generator 10 when an emergency flasher switch 21 is operated. In another embodiment (Fig. 2, not shown) the pulses from generator 10 are supplied to the flasher lamp circuit via relays, one of which has its contacts connected in the circuit of the indicator pilot lamp. This relay is constructed so as to remain closed while a full-load pulsating current is passing through its energizing winding, but the open and close in synchronism with the pulses when either or both flasher lamps fail. The pulse generator may also be connected to indicate non-use of a seat-belt, or failure of brake circuits (Fig. 3, not shown). Lamp failure alarm.-In series with direction indicator lamps BL, BR is a monitoring relay K (Fig. 2). As long as both lamps BL or BR function, current through the relay K is large enough to operate it. The relay has a delayed release so that it stays in an operated condition while the lamp circuit carries pulsing current. However, if the lamp current is reduced by failure of a lamp BL or BR, the delay effect is no longer sufficient to maintain relay operation and it thus operates in synchronism with the current pulses whereby the monitoring lamp KBL is pulsed due to opening and closing of the relay contacts K.
Patent GB-410226-A (GB)
Abstract: 410,226. Totalizators. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, and LIMB, F., Ericsson Telephone Works, Beeston, Nottingham. Dec. 1, 1932, No. 33964. Drawings to Specification. [Class 106 (i).] In an electric totalizator adapted to deal with " double " and " forecast " bets, tickets for either class of bet may be issued by a single ticket-issuing machine. The invention is described with reference to the equipment described in Specification 403,177 wherein the access equipment to a competitor's registering apparatus comprises a pair of relays appropriated to "win" and " place " bets, the access equipment being selected by a competitors' selecting switch, and one or other bet relay by a "win" or "place" key. In the prior Specification the competitor's relays are connected to the selecting equipment over "start" relay contacts in order that the circuits of access equipments corresponding to the competitors in a race may be prepared at the commencement of betting. In the present system the "win" and " place " relays in access equipments are appropriated to the various "double" contingencies. The contacts of the " start " relays individual to the various " double " contingencies are included in the register circuits instead of the access relay circuits. "Start" relays are provided for both " doubles " and "forecast" betting so that operation of the appropriate " start " relays prepares the circuits of the corresponding " doubles " and " forecast registers. Assuming it is desired to make a " forecast " bet, the corresponding access equipment is selected and the appropriate relay in the access pair is operated to cause operation of the appropriate register. Similar operations take place to effect operation of a register upon operation of the other access relay when making a " doubles " bet. Upon the registration of a bet, a ticketissuing signal is transmitted back to the machine to cause printing and issuance of a single ticket. Different "stake" values may be arranged for by providing the necessary denominational registers which are connected up through extra contacts on the "start" relays. If a bet is made incorrectly on a non- runner, a lamp at the ticket issuing machine is operated over the contacts of the "start" relay corresponding to the non-runner. The ticket issuing machine is adapted to deal with both classes of bets, viz., "doubles" and " forecast " and when " doubles " betting is restricted to a specified pair of events, the " event " number printing mechanism used in conjunction with " forecast " bets is rendered ineffective when the machine is set for " doubles " setting. When " doubles " betting is not confined to a specified pair of races, the printing arrangements are modified so that " doubles " betting as well as " forecast " betting is under the control of the race change key. A mechanical lock or stop may be provided for preventing the ticket issuing machine from being set to impossible combinations of runners or to double-event combinations and after such betting is discontinued.
Patent GB-1434634-A (GB)
Title: Turntable apparatus
IPC: B65G29/00
Filed: 1973-08-31
Abstract: 1434634 Turn-table for use in aperture card camera-processor EASTMAN KODAK CO 31 Aug 1973 [31 Aug 1972] 41036/73 Heading G2A A turn-table apparatus has a turn-table (2) supported for rotation about a rotary axis and for axial movement along the same axis, and turntable stopping means comprising an engageable stop member (28) connected to the turn-table for synchronous movement therewith, and a catch member (36) mounted on supporting means (31) for movement between an initial position, in which the catch member is disposed for engaging the stop member as the turn-table is rotated about the rotary axis, and a turn-table stopping position, to which the catch member is moved by the stop member during the rotation of the turntable and in which the catch member is abutted against a blocking member (42) to stop the turn-table in a predetermined position of rotation, the catch member being disengageable from the stop member, upon axial movement the turn-table along the rotary axis, for return to its initial position and to free the turn-table for another sequence of rotation. The embodiment comprises an aperture card camera-processor (1) having a turn-table (2) having six identical card holders (3) to (8) for receiving six aperture cards (9) each having a photo-sensitive film section (11). The turn-table (2) is fixed to shaft (12) which is connected to elevation and rotation mechanisms (not shown) below platform (13). Six work stations (16) to (21) are provided which comprise card loading station (16), card aligning station (17), exposing station (18), developing and stopping station (19), fixing and washing station (20) and drying and discharging station (21). The turn-table (2) has six stop members (28) which can be moved into engagement, with a turn-table stopping mechanism (29) held above platform (13) by inter-connecting bracket (30). The mechanism (29) has a support base (31) having a T-shaped channel (32) which has a first section (33) for receiving the stop member (28) see Figs. 6 and 7 as the turn-table (2) completes rotation through a 60 degree increment, a second channel section (34) which receives the stop member (28) as the turn-table (2) is lowered the distance A, see Fig. 8 and in which the stop member (28) reverses direction as the turn-table is raised the distance A, and a third channel section (35) for receiving the stop member (28), see Fig. 8 as the turn-table (2) begins rotation through another 60 degree increment
Patent GB-1154279-A (GB)
Title: Adhesive Compositions
Inventor: FISCHER ADOLF AUGUST
IPC: C08L23/26
Filed: 1967-09-08
Abstract: 1,154,279. Laminates. UNITED MERCHANTS & MFRS. Inc. 8 Sept., 1967, No. 41086/67. Heading B5N. [Also in Division C3] Textile fabrics and synthetic resin sheets may be laminated by applying therebetween adhesive composition in emulsion form comprising a halogenated olefin polymer, an acrylic resin, a nitrogen-containing curing agent and an emulsifier, drying the composition and curing preferably at elevated temperature. The halogenated polymer may be a chlorinated or chlorosulphonated polymer of ethylene, propylene or isobutene. The acrylic resin may be a polymer or copolymer of methyl or ethyl methacrylate or of ethyl, propyl or butyl acrylate. Specified curing agents are urea, ethylene urea, hexamethylene tetramine, thiourea, thiourethane, thioacetamide, thiopropionamide, thiocarbamates, sulphamides, dithiocarbamic acid, thiuram disulphide, thiuram tetrasulphide, alkylene thioureas, 2 - mercaptoimidazolines and benzothiazyl disulphide. Specified emulsifiers are morpholine and polyethylene oxides. Examples describe the laminating of cotton cloths with adhesives formed by emulsifying ethyl acrylate resin emulsions and solutions of thiourea, ethylenethiourea and ethyleneurea in solutions of chlorosulphonated polypropylene in aromatic hydrocarbons, chlorosulphonated polyethylene in xylene and methyl isobutyl ketone, and chlorinated polypropylene in xylene and methyl isobutyl ketone. Similar results are obtained using sheets of polyethylenes, polyamides and polyacrylonitriles.