baber/WOPTO huggingface dataset:
Patent GB-1265877-A (GB)
IPC: H02K15/04
Filed: 1969-08-28
Abstract: 1,265,877. Making coils for dynamo-electricmachines. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 Aug., 1969 [31 Aug., 1968], No. 42923/69. Heading B3A. [Also in Divisions H1 and H2]  An electric coil is made by coating wire or strip conductor with a contact adhesive (i.e. an adhesive having the property that dry layers thereof will only adhere on being brought into contact with one another), drying the adhesive and then winding the conductor. In Fig. 3 wire g from a reel h is passed through a bath of liquid contact adhesive j and through an aperture k to remove excess adhesive, and is then dried by a fan m or heater. The dried adhesive coating is typically one micron thick. The coated wire is then wound on to a revolving bobbin a by means of a revolving flyer f. By imparting a reciprocating movement n to the flyer f via a cam, successive turns are spaced from the axis of the coil as they cross the end faces by a periodically-varying distance, thus preventing, as shown in Fig. 1, bunching of the wires on top of one another.
Patent GB-1289112-A (GB)
IPC: F16L59/153
Filed: 1969-09-02
Abstract: 1289112 Flexible insulating duct PPG INDUSTRIES Inc 2 Sept 1969 19764/72 Divided out of 1289111 Heading F2P A flexible insulating duct comprises a helix of wire 12 (metal and/or plastics), tubular connector members 18, 19 to which the ends of the helix are attached as at 20, fire retardant insulating material 11 wrapped about the helix and adhesive means affixing the insulating material to the helix. Preferably the insulating material is the same as that disclosed in Specification 1,289,111  and may extend completely over one end member and partly over the other to form male and female connecting ends. A flexible fluid impermeable sleeve 10 may be applied over the insulating material.
Patent GB-1290104-A (GB)
IPC: F23G7/08
Filed: 1970-02-23
Abstract: 1290104 Flare stack burners JOHN ZINK CO 23 Feb 1970 [20 March 1969] 8472/70 Heading F4T A burner tip for a flare stack comprises a tubular member with an opening at its upper end and a plurality of elongate distributing devices 31 positioned within the opening and extending from adjacent the wall 10 of the tubular member to the axis thereof; each device 31 has apertures 44 spaced along its length through which a mixture of air and steam is discharged, the volume of the mixture discharged by the distributing devices through the apertures adjacent the wall 10 is greater than the volume discharged adjacent the axis. The air and steam mixture is supplied to the devices 31 via aspirators 15 and conduits 36. A central discharge device is also mounted in the opening and steam and air, supplied via a conduit 16, is discharged radially outwards through ports 22, formed in the upper end of the conduit, and through apertures 26, formed by a disc 23 spaced from the conduit by lugs 24, Fig. 4. Pipes 51 are disposed outside the stack 10 and are provided with apertures 53, through which steam and air, again supplied via aspirators 15, are discharged radially inwards towards the axis of the stack.
Patent GB-1296490-A (GB)
IPC: H05K3/30
Filed: 1970-12-29
Abstract: 1296490 Capacitors ERIE TECHNOLOGICAL PRODUCTS Inc 29 Dec 1970 [29 Dec 1969] 61757/70 Heading H1M A ceramic capacitor includes a plurality of electrodes 2 and 3 extending alternately to opposite side faces 2a, 3a, parallel leads 11, 12 each having a top portion making electrical contact with the electrode edges preferably through a solder layer, and a bottom portion extending below the lower face of the capacitor body for making contact with conductors on printed circuit board 8, the ceramic body having integral feet 25 for spacing it from the printed circuit board. It may also have shoulders 20 for locating the leads. The bottom edges of the ceramic body may be bevelled as at 23 so that insulating coating applied, e.g. by dipping, over all faces but the lower one also surrounds the leads where they leave the body.
Patent GB-1302544-A (GB)
IPC: H02J3/36
Filed: 1969-06-24
Abstract: 1302544 HV DC power transmissions ENGLISH ELECTRIC CO Ltd 23 Sept 1970 [24 June 1969] 31798/69 Heading H2F [Also in Division G3] A control circuit for a controllable rectifier 10 in a D.C. transmission system includes means 24 for controlling the firing angle of the rectifier 10, means 33<SP>1</SP> for generating a first control signal dependent on the difference between the actual direct current I L  and a first desired current level I 01  and means 35 for generating a second control signal dependent on the difference betseen I L  and a second desired current level (I 01 -dI), first and second amplifiers 32, 34 for feeding the first and second control signals to the firing angle control means 24, amplifier 32 being operable when I L >I 01  (operating along JC, Fig. 4); amplifier 34 being operable when I 01 > I L >(I 01 -dI) i.e. operable along HJ. Fig. 1 shows an HVDC transmission system comprising a rectifying station 10 couplied via a D.C. transmission line 16 to an inverting station 19. The conduction angle of the gridcontrolled rectifiers in station 10 is determined by a pulse generator 24, the timing of which is a function of (a) the desired rectified current 1 01 , (b) the current level required to produce a given output from inverter 19 (=I 01 . dI) and (c) the rectifying valves firing angle, determined by circuit 31. The direct current is monitored by transformer 33 and compared with the required input signal I 01 . The conduction angle of the grid-control rectifiers in the inverting station 19 may be controlled by a constantcurrent control system 45, 43 or by a constantextinction angle control system 49, 48, 44; diodes 41, 42 selecting the control from the amplifier 43, 44 having the most negative output. The extinction angle is neasured at 51 and subtracted from the required extinction angle signal on line 49. Determination of conduction angle.-Circuit 31 may comprise means for deriving a differentiated square wave from the A.C. supply, positive pulses of said wave being used to set a bi-stable circuit (Fig. 2, not shown) which is reset by the next firing pulse from 24. After smoothing, the bi-stable circuit thus gives a D.C. analogue or the firing angle.
Patent GB-1307104-A (GB)
Title: Pickling tank of plastics construction
IPC: B65D85/84
Filed: 1970-11-24
Abstract: 1307104 Pickling tank ESKILSTUNA PLASTBELAGGNING A B 24 Nov 1970 55935/70 Heading C7E [Also in Division B1] A self-supporting pickling tank, resistant to corrosion by acids at high temperatures, is formed from a laminate comprising a heat-insulating, acid-resistant layer of compressed cellular plastics between layers of reinforced plastics. Stiffeners 5, which may be of a similar laminate, extend across the bottom of the tank and half way up its sides. Rollers 10 may be provided to hold down a band 11 to be treated, and plastics hoods 6, 7 serve as removable covers. One of these may be formed with a purger 8 for non-condensable gases. Supply and discharge ducts are provided at one end and a spillway 12 at the other.
Patent GB-1314347-A (GB)
Title: Air rectification process for the production of oxygen
IPC: F25J3/04
Filed: 1970-03-16
Abstract: 1314347 Air rectification process AIR PRODUCTS Ltd 19 April 1971 [16 March 1970] 12586/70 Heading F4P The feed to a two-store air rectification column C101, C102 for the production of low purity oxygen comprises a low pressure portion delivered by a compressor K101 through conventional heat exchangers E101, E102 to the base of the high pressure column C101, and a high pressure portion delivered by a compressor K102 through exchangers E103, E104 and through a condenser-evaporator E109 where the high pressure air is partly condensed against boiling liquid oxygen having been withdrawn from the base of column C102, and the condensate is passed through a sub-cooler E108 after which the condensed high pressure air portion is valve expanded and fed to the low pressure column C102. The major part of the uncondensed portion of high pressure air is separated at C110, warmed at E102, E103, E104 workexpanded at K103, cooled at E105 and fed to column C102 whilst the minor portion is condensed against low pressure nitrogen at E110 and added to the subcooled liquid air leaving heat exchanger E108. Reboil for column C102 is provided by withdrawing crude liquid oxygen from column C101, cooling it at E105 purifying in absorber C105 and vaporizing at an external evaporator-condenser E107 in heat exchange with withdrawn high pressure nitrogen and feeding the oxygen vapour into column C102. A further external evaporator-condenser E106 is traversed by said valve-expanded liquid air and by high pressure nitrogen which latter is condensed and added to nitrogen from E107 and valve-expanded into column C102.
Patent GB-1321226-A (GB)
Title: Electrical distribution pillars
Inventor: ANDERSEN J
IPC: H01H31/12
Filed: 1969-07-07
Abstract: 1321226 Bases and cases E RASMUSSEN AS 1 July 1970 [7 July 1969] 34197/69 Heading H1N [Also in Division H2] The front covers 42 of a distribution pillar, Fig. 1, are arranged to be swung downwards to each withdraw their fuse 40, attached by member 48 to said cover, from its contacts, e.g. 15a, 14a, so as to act as a switch. Grooves 50 in the side walls 4 engage pins 46 on the side plates 44, Fig. 2, of the covers and a further cam portion 54 engages the pin 52 to prevent removal of the cover until it has been swung into a horizontal position.
Patent GB-1324239-A (GB)
Title: Crimping of synthetic filament yarns
IPC: D02G1/12
Filed: 1971-05-26
Abstract: 1324239 Stuffer-box crimper TMM (RESEARCH) Ltd 26 May 1971 [6 March 1970] 10924/70 Heading D1F In a method of crimping filament yarn in a stuffer box, the entry end of the stuffer box is preheated prior to entry of the yarn at startup. Apparatus for crimping filament yarn comprises a stuffer box 9 having a passage 12 which has a yarn entry end and a yarn exit end, feed means, e.g. rolls 10, 11 to feed yarn to the entry end, and a heater 16 at the yarn entry end 1  and a control device for controlling the heater means independently of the feed means and operative to activate the heater means to heat the entry end of the passage 12 when the feed means are inoprative whereby to allow the suffer box to be preheated before the feed means are rendered. The heater which maintains the temperature of the entry end within predetermined times preferably comprise a cartridge 16 clamped to the wall of the stuffer box 9. The yarn 1 is taken from a supply 2, drawn between pairs of rolls 3, 4 and 6, 7, heated by heater 5 and optionally heater 8, and fed to the stuffer box 9 where it accumulates under the back pressure of a pivoted member 13 in the passage 12. The heater 16 is controlled by a thermostat, thermistor or thermocouple.
Patent GB-1326697-A (GB)
Title: Parallelepipedic packages
IPC: B65D5/06
Filed: 1971-11-17
Abstract: 1326697 Parallele pipedic packages TETRA PAK INTERNATIONAL AB (A R RANSING) 17 Nov 1971 53372/71 Heading B8C A parallelepipedic package has a discharge spout at its upper end formed by a triangular flap 5 which has a separable end portion 6, and an air hole 9 which is covered by a strip 8 in the upper end wall 3, the side walls of the filled and sealed package buckling inwardly until the cover strip 8 is removed, when they buckle outwardly. The end portion 6 is defined by a perforation line 7 passing partly through the package material. The cover strip 8 is sealed to an inner and/or outer thermoplastics layer of the package covering the air hole 9 and has a gripping flap 10. The package is formed from a web of material which is formed into a tube, filled, heat sealed transversely to the tube axis, and severed along the heat seals to form individual packages which are given a parallelepipedic shape before or after severance. The side walls are subjected to an inward pressure before and during sealing to cause them to buckle inwardly. The tabs 11 formed during sealing are folded against the end walls and the upper and lower triangular flaps 5 formed during shaping are folded and sealed against the side walls 2 and the bottom wall 3 respectively. The web may consist of a base material of paper, paper lined on both sides with plastics, or a combination of paper and a metal foil with an intermediate plastics layer. A layer of thermoplastics may be provided on the inside and/or outside of the base material.
Patent GB-1339813-A (GB)
Title: Urethane elastomers
IPC: C08K5/16
Filed: 1971-11-05
Abstract: 1339813 Melt-spinnable polyurethane elastomers MONSANTO CO 5 Nov 1971 51611/71 Heading C3R [Also in Division B5] Melt-spinnable fibre-forming polyurethane elastomers prepared by reacting a polymeric glycol of M.W. between 800 and 3000, a polyisocyanate and sufficient of a chain extending agent to give an NCO/OH ratio of 0À98 to 1À06 contain as a non-sticking additive a compound having any of the following formulµ wherein R 1  and R 2  are the same or different radicals selected from a C 1-24  aliphatic radical with 0 to 3 double bonds between the carbon atoms, an alicyclic radical and an aromatic radical, X 1  and X 2  are the same or different radicals selected from carbonyl and sulphonyl radicals, Y is an organic divalent radical and the total number of CH 2  groups in the R 1 , R 2  and Y radicals is at least 9. The polyurethane may be formed in the presence of the additive or the polyurethane is preformed and the additive added thereto. The additive preferably melts in the range of 120‹ to 240‹ C. and may be, for example, methylene bis-(stearamide), ethylene bis - (stearamide), distearyl 4.4<SP>1</SP>- methylene - bis - (phenylcarbamate), 4,4<SP>1</SP>- distearylureidodiphenylmethane, ethylene bis- (hexadecylsulphonamide) or ethylene bis- (oleamide).
Patent GB-1346767-A (GB)
Title: Building materials
IPC: B28B1/52
Filed: 1971-06-22
Abstract: 1346767 Producing fibre reinforced building boards C G BEVAN ASSOCIATES Ltd 22 June 1971 [7 July 1970 2 Nov 1970] 32917/70 and 52031/70 Heading B5A To produce fibre reinforced gypsum building panels having bores c extending therethrough, a dry mixture of gypsum, high alumina cement and fibres is formed in a mixing chamber 5, compacted in a mould 6 having bore formers 7 and subsequently, after removal of the formers 7, set in a tank 11 of heated water. The mixing chamber 5, supports 8, and the formers 7 vibrate with a vibrating table 9 to assist compaction of the dry mixture. A feeding device 1, fibre reels 4 and cutters 3 may reciprocate along the mould or a series of these may be provided along the length of the mould. The base of the mould is perforated to accommodate the bore former 7. After hardening, the panel is removed from the mould which is then recirculated. Collapse of the bores c during seepage of the water is substantially prevented by the fibrous reinforcements. Perlite, fuel ash, crushed stone, expanded clay aggregates may be incorporated into the dry mixture as fillers. The fibres may be glass, asbestos, sisal, polypropylene or wood, and, instead of or with the gypsum, anhydrite, Portland cement or plaster may be used.
Patent GB-1347003-A (GB)
Title: Amusement machines
IPC: G07F17/34
Filed: 1970-04-30
Abstract: 1347003 Coin-freed amusement apparatus BELL-FRUIT MFG CO Ltd 21 July 1971 [30 April 1970] 20832/70 Heading G4V An amusement machine comprising means for displaying a combination of symbols to the player, the combination being changed during the course of a game and prizes being awarded when certain combinations are displayed at the end of a game, further includes preselection means available to the player to preselect possible prize winning combinations and/or the prizes corresponding to winning combinations before the display is changed. The embodiment described comprises a coin-freed fruit machine with three rotatable symbol carrying reels R1 to R3, the rotation of which is controlled by an electronic control unit as described and claimed in Specification 1,319,625. The preselection means comprise switches K1 to K5 each associated with an individual symbol carried by the drums, the switches serving, when operated by the player, to set the corresponding stage of a shift register J. The setting of any stage sends a signal along a corresponding line X1 to X5 to a win decoder unit and also through inverter G7 applies a signal to the shift register J preventing the setting of any further stages. The win decoder, Fig. 2, comprises a logic gating circuit which receives inputs along lines Z1, Z2 and Z3 indicative of the final positions of the reels R1 to R3, line Z4 which indicates that the reel motor M has stopped and line X1 from the preselection means and serves to give prize-amount indicative outputs on lines 2, 4 and 12 if the symbol corresponding to switch K1 is displayed on the first, first and second and all three reels respectively providing that switch K1 has been actuated, and an output on line 8 if all the reels display this symbol but the switch K1 has not been depressed. A similar win decoder unit is provided for each switch K1 to K5 and further units may be included for those symbols not represented by the switches. The signals from the win decoder units are applied to a payout unit also described in the above mentioned Specification. If a switch K1 to K5 is fortuitously closed at a specific point in the cycling of the control unit then a gate G11 is opened to pass pulses from a pulse generator of the control unit to the shift register setting all of the stages J1 to J5 so that all of the prize-winning combinations corresponding to the switches K1 to K5 are set up simultaneously.
Patent GB-1349255-A (GB)
Title: Density measurement
IPC: G01F1/88
Filed: 1971-04-26
Abstract: 1349255 Measuring fluid-flow ROTRON Inc 26 April 1971 [24 April 1970] 11465/71 Headings G4D D6Y D7X D6C1 and D6C2 A hermetically sealed housing 13, Fig. 1, through which fluid flows via inlet and outlet channels 23, 24 is divided into two portions 15, 16 housing a densitometer 12 and a flowmeter 11. Densitometer.-The densitometer comprises a fused quartz tuning fork type sensor 52 having a pair of tines 65 of rectangular cross-section with Piezo-electric crystals 76, 79 mounted on the arcuate portions of the tines. The crystals are connected to an amplifier 78 so that, as crystal 76 is deformed by movement of the associated tine, a voltage is generated across leads 77 which after amplification is fed by leads 80 to the crystal 75 to cause it to bend and drive the fork at its resonant frequency. This results in an A.C. signal 90 across leads 88, the frequency of which is inversely proportional to the density of the fluid sensed by the sensor 52. The sensor is mounted in a cup-shaped member 50 surrounded by a circular screen 59. Flowmeter.-The flowmeter comprises an orifice plate 30 having an annular flange 33 fastened to a plate 14 and a rotor 35 (fluid supported and stabilized against tilt and oscillatory movement) carrying a conductive segment 36 which interrupts the field between a pair of coils 37, 38 resulting in a pulsating signal across leads 46 representing volume flow-rate. Computing circuitry.-The densitometer output 90, Fig. 8 (not shown), is applied to a decade counter 103 delivering an output pulse for every thousand input pulses. A gate signal generator 105 enables a gate 107 for the time interval between the first pair of pulses from register 103 after the register has been reset by a reset signal generator 126. Clockpulses are accumulated for this time interval in a binary coded decimal counter 111, the count at the end of the interval being transferred to store 113. The density do of the fluid is proportional to K (p 0 -p v )where po is the period of one cycle of the signal from the sensor 52 when the sensor is in a fluid of density do and p v  is the period of one cycle of the signal from the sensor where the sensor is in a vacuum. By manually pre-setting counter 111 to overflow at a predetermined count corresponding to the period p v , the count transferred to the store 113 may be made to represent the monitored density. Each flowmeter output pulse is multiplied by the contents of the store 113 so that the output of multiplier 122 represents mass flow-rate. This signal is multiplied in a rate multiplier 135 by a factor related to the desired measurement unit required and accummulated in a counter 141 which indicates mass flow.
Patent GB-1350525-A (GB)
Title: Variable speed electric transmission
IPC: H02K51/00
Filed: 1972-04-05
Abstract: 1350525 Homopolar machines KHARKOVSKY AVTOMOBILNO-DOROZHNY INSTITUT 5 April 1972 15569/72 Heading H2A A variable speed transmission comprises a pair of homopolar machines arranged coaxially as a motor-generator unit and having rotors 1, 2 respectively connected by liquid contacts to and forming a closed circuit with cylindrical conductors 13, 14 carried by the magnetic cores 20, 21 of the machines which also carry exciting windings 22, 23 by means of which the transmission is controlled, the rotor 1 and field system of the generator both being driven but at different speeds. As shown in Fig. 1, the rotors are mechanically connected to input and output shafts 3, 4 respectively, whilst the cores 20, 21 are mechanically connected together by a non- magnetic member 24 and are supported by sleeves 25, 26 in bearings 27, 28. Sleeve 25 is coupled to the driving means for shaft 3 such that the cores rotate with but at a slower speed than the shaft 3 and rotor 1. Conductors 13, 14 are connected by a sleeve 15 whilst rotors 1, 2 are connected by a further sleeve 16 and liquid contacts 8, 18 and 9, 19 the sleeve 16 being concentric with and insulated from the sleeve 15. In a modification, Fig. 2 (not shown) the rotors 1, 2 are mechanically connected together and driven by an outer casing (41) of the transmission which is connected to the sleeve 25, the rotors being secured to stub-shafts (36, 37) journalled inside the cores 20, 21. The casing (41) is driven at a lower speed than core 20 which in this case is coupled to the input shaft 3, core 21 being coupled to the output shaft 4. Fig. 3 shows a further modification wherein core 20 is again driven by the input shaft 3 but the casing 41 in this case drives the core 21 and the rotor 1 which is mechanically coupled to the conductor 14 of core 21, but insulated therefrom, by a washer 42. Rotor 1 is carried by a stub shaft 43 and rotor 2 drives the output shaft 4.
Patent GB-1350941-A (GB)
Title: Ground-based flight simulators
IPC: G09B9/14
Filed: 1971-07-16
Abstract: 1350941 Aircraft simulator REDIFON Ltd 16 July 1971 33557/71 Heading B7W The rigid structure 1-4 of a ground based flight simulator supported on a base 7 or by a gantry (not shown) by extensible jacks 13, 14; 15, 16 may be arranged to be movable in six degrees of freedom by the provision of further extensible jacks 11, 12 or in four degrees of freedom by the alternative provision of a rigid pivotable support frame 24-26 (Fig. 2, not shown). The jacks are pivoted at fore and aft pivot points 8 and 6, and lateral pivot points 7, 9. Surge and sway are provided by respectively similar and differential extension of jacks 11, 12 whereas heave is provided by extension of jacks 13-16. Roll about longitudinal axis 5 is effected by differential extension of jacks 15, 16. Pitch may be provided about any desired lateral axis, e.g. pitch about an axis through 6 is effected by extension of jacks 13, 14 together with proportional extension of jacks 15, 16. Yaw about a vertical axis through 6 is effected by differential extension of jacks 13, 14. When jacks 11, 12 are replaced by the rigid support frame (24-26), surge and sway are unobtainable; this rigid frame may be an A-frame or an inverted-V frame, and its base pivot points 18, 19 may be made collinear with those 20, 21 of jacks 13, 14 (Fig. 3, not shown).