baber/WOPTO huggingface dataset:
Patent GB-1268780-A (GB)
Title: Synthetic resins aqueous dispersions and process
IPC: D06M15/233
Filed: 1969-04-03
Abstract: 1,268,780. Coated paper products. ARMOUR INDUSTRIAL CHEMICAL CO. 3 April, 1969 [29 April, 1968], No. 17455/69. Heading B2E. [Also in Divisions C3 and D2] Paper and board are coated or sized with solvent-free stable aqueous dispersions comprising, by wt. based on the dispersion: 0.25- 75% epoxy resin; 0.2-10% dispersing agent; and 15-99% water. The epoxy resin has particle size <10Ám, and epoxy E.W. of 100- 2000, and is liquid at 225-400‹F. It may be made from polyfunctional halohydrins and/or glycerol dichlorohydrin with polyhydric phenols, e.g. epichlorohydrin and Bisphenol A; others are listed; or it may be a novolac resin. The dispersing agent may be cationic, anionic, or non-ionic; it may be an amine or quaternary ammonium compound, e.g. a diamine or diquarternary ammonium compound, or imidazolines. The dispersion may be made by heating the resin to >75‹F above the R. and B. softening point to 225-400‹F, and mixing with the other ingredients at 120‹-160‹F by passage through a colloid mill with head-clearance 0.005-0.012", 5-30 psig head-pressure, and 5-15 psig back-pressure; and cooling the mixture below the boiling point of water. 60-85% of the dispersing agent may be added to the water, and 15-40% to the resin. Other additives include silicone oils; e.g. 0.05-0.5% of water-soluble salts as stabilisers; pigments, dyes, or levelling agents.
Patent GB-719736-A (GB)
Title: Free hanging electrode for melting furnaces, particularly for metals
Inventor: LUBATTI EUGENIO
IPC: H05B3/03
Filed: 1952-07-11
Abstract: 719,736. Furnace electrode. SOC. FORNI LUBATTI. July 11, 1952, No. 17519/52. Class 39(3). One end of a current-conveying metal tube 2 is embedded in a carbonaceous or graphite electrode head 1 dipping into a metal melting furnace, the tube 2 being of smaller cross section than the electrode and being cooled by fluid passed therethrough by a tube 4 in the tube 2. An insulating sleeve 10 of asbestos mixed with dielectric refractory material and wire reinforcement is placed over the conducting tube 2 adjacent the electrode head, which has a diameter much greater than that of the sleeve, so all points on the surface of the head are substantially equidistant from the tube 2. Cooling water from the inner tube 4 impinges on the closed end of the tube 2 within the electrode and is withdrawn at the outer end 5 of the tube 2, to which current is supplied by a cable 6. Three electrodes may be introduced through an aperture in a side wall of a melting furnace with a refractory basin and in insulating refractory roof. Specification 689,523 is referred to.
Patent GB-531079-A (GB)
Title: Improvements in or relating to the filtering and straining of fluids
IPC: B01D29/00
Filed: 1939-06-15
Abstract: 531,079. Filtering gases. PINCHIN, JOHNSON & CO., Ltd., FORREST, W. J., and BROWN, C. H. June 15, 1939, No. 17555. [Class 8 (ii)] [Also in Group I] A plunger 6 in a hollow filter element 2 and a plunger 8 in a pump cylinder 9 are attached to a hollow rod 7, which has openings, controlled by sleeves 18, 19, on either side of each plunger, the arrangement being such that the plunger 6 draws fluid, supplied to the receiver 4 through an inlet 5, into the space behind the plunger and forces fluid in front of it outwardly through the filter element to cleanse the element. The filtrate passes on through the rod and is drawn by the plunger 8 into the space behind it. The plunger 8 forces the fluid in front of it to a discharge pipe 12 through the branches 10, 11 with non-return valves 13. The rod 7 is reciprocated by a crank on a shaft 25. A rod 20 to which the sleeve valves are attached is reciprocated by means of a spring 23 and a cam 28 on the shaft 25. Specification 530,329 is referred to.
Patent GB-630524-A (GB)
Title: Centrifugal separator
IPC: B04C3/00
Filed: 1947-07-03
Abstract: 630,524. Centrifugal separators for cleaning liquids. McCURDY, H. July 3, 1947, No. 17569. [Class 23]. In a centrifugal separator comprising a cylindrical casing 2, a concentric cylinder B, a helical ramp 7 mounted concentrically within the cylinder, an inlet 6 discharging tangentially on to the bottom of the ramp, and an outlet 4 at the top of the casing, the annular spaces between casing, cylinder and ramp form settling passages for the separated impurities. A further concentric cylinder C, or a series of such cylinders having top edges at different levels, is interposed between the cylinder B and the casing. The ends of the ramp are joined by a vertical plate 10 containing the end of the inlet. The ramp is provided with vent holes 8a, V and with overload slots adjacent the edge R. Sediment is discharged periodically from a fitting 5a.
Patent GB-367274-A (GB)
Title: Manufacture of artificial threads from cellulose derivatives
IPC: C08L1/08
Filed: 1931-06-17
Abstract: Artificial threads are obtained by spinning a solution of cellulose ester or ether containing a condensation product of a polyvinyl alcohol and an aldehyde, e.g. such as described in Specification 337,806, [Class 2 (ii), Cellulose &c.].  Examples of spinning solutions are: cellulose acetate or ethyl cellulose dissolved in a mixture of methylene chloride and alcohol together with a condensation product of polyvinyl alcohol and formaldehyde; hydrolysed cellulose acetate dissolved in an acetone-alcohol mixture with an addition of a condensation product of polyvinyl alcohol and acetaldehyde and ethyl cellulose dissolved in an alcohol-benzene mixture with an addition of a condensation product of polyvinyl alcohol and benzaldehyde.  The products are stated to be of increased strength, dry and wet and also resistant to creasing.  The added substance is usefully added in an amount of 5-30 per cent on the weight of the cellulose derivative.
Patent GB-1096279-A (GB)
Title: Protective relays
Inventor: HOEL HANS
IPC: H02H3/38
Filed: 1964-04-28
Abstract: 1,096,279. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. April 27, 1965 [April 28, 1964], No. 17643/64. Heading H2K. An impedance relay arrangement has signal generators 14, 15 providing vectorial quantities (1X, 1R) which determine limiting conditions for operation of the relay arrangement, signal generators 16, 17 providing vectorial quantities (E and 1Z 3 -E) dependent on the condition of the protected system, and a phase sequence comparator 32 receiving all the signals and effecting a protective function when the vectorial quantities of the signal generators 16, 17 occur in phase sequence between the vectorial quantities of the signal generators 14, 15. A further phase sequence comparator 31 is connected to the signal generators 14, 15 and to signal generators 12, 13 providing vectorial quantities (1Z 1 -E and 1Z 2 +E) In the event of fault conditions, the comparator 31 provides an output which initiates the operation of timers 34, 35. Should the fault be in a first zone then the comparator 32 provides a signal to an output circuit 38 which trips a circuitbreaker 6 without delay, but should the fault be in a second zone, then after a timed interval the timer 34 disconnects the signal generator 17 and connects a signal generator 18 to the comparator 32 to increase its reach. Should the fault be in a third zone, then after a longer timed interval the timer 35 provides a signal to the output circuit 38 to trip the circuitbreaker 6. The Specification fully describes the characteristics of the relay arrangement with the aid of vector diagrams.
Patent GB-1086225-A (GB)
Title: Improvements in or relating to magnetic recorder and reproduce systems
IPC: G11B20/14
Filed: 1965-04-27
Abstract: 1,086,225. Electric data storage and reproduction. AMPEX CORPORATION. April 27, 1965 [July 2, 1964], No. 17644/65. Headings G4C and G5R. Apparatus for recording data on and reproducing data from a magnetic tape in which for decoding purposes a clock signal is derived from the data which is recorded in a zero erase code, i.e. a code in which the "one" bit is recorded normally and a signal similar to an erase signal having a frequency component at twice the clock pulse frequency is recorded during the zero intervals. The code signal is formed from the incoming data signal by the unit 12 and recorded by the transducer 18. On read-out, the reproduce transducer 22 feeds a pre-amplifier 24 and this supplies an output signal to data detecting means 26 which detects the " one " bits in the output and also to the extracting means 40. This comprises means for amplifying and detecting the positive peaks of the output signal, means for forming a pulse train from the detected peaks which contain a component at the frequency recorded during the zero intervals, a tuned amplifier tuned to twice the clock frequency which is synchronized by the pulse train and means for dividing the output of the tuned amplifier by two to derive the clock pulse signal.
Patent GB-749635-A (GB)
Title: Device for heating flowing liquids
IPC: F24H1/10
Filed: 1953-06-25
Abstract: 749,635. Heating liquids by direct contact with steam. FARBENFABRIKEN BAYER AKT.-GES. June 25, 1953 [June 27, 1952], No. 17662/53. Class 64(1). The supply of steam injected into a flowing liquid to heat it in a heating chamber 5 is automatically controlled by a valve 2 actuated by an expansible, corrugated, liquidfilled tube 1 in an inlet chamber from which the unheated liquid flows to the heating chamber 5. A cap 10 above the steam inlet reduces noises. A porous plug 6 is provided between the steam inlet and the water inlet to the second chamber, to distribute the steam. The corrugated tube 1 contains petroleum or other liquid with a low boiling point, and is adjustable by a screw spindle 8.
Patent GB-539927-A (GB)
Title: An improved method for separating a ribbon of rubber threads into its individual threads and apparatus therefor
IPC: B29D99/00
Filed: 1940-12-16
Abstract: 539,927. Roller arrangements. UNITED STATES RUBBER CO. Dec. 16, 1940, No. 17704. Convention date, Dec. 27, 1939. [Class 120 (ii)] [Also in Group V] A ribbon of releasably adhering rubber threads is separated into its individual threads by subjecting adjoining threads to different degrees of tension and withdrawing the threads in different directions. A spool 12 carrying a ribbon of six releasable threads is unwound at a constant rate by resting on a driven roller 13. Alternate threads 2 are drawn between a roller 18 driven at a much greater peripheral speed than the spool' 12, and a roller 17 resting thereon. The remaining threads 3 are drawn between a roller 25 and a roller 26 driven at a peripheral speed only slightly greater than that of the spool 12, and are then passed between the rollers 17, 18. All the threads then pass between rollers 29, 30 moving at about the same speed as the rollers 17, 18 and each thread is then passed to a separate winding spool 46, all of which are driven at the same speed by resting upon driven rollers 48. A stop mechanism which on breakage of a thread causes a trip lever 40 to allow the fall of a power control lever 44 consists of drop wires 31, one for each thread, the fall of one of which acts through lever 35, rod 37 and lever 38 pivoted to the trip lever to bring an arm 39 into contact with a ratchet wheel 42 on a driven shaft. Talc released from the ribbon may be drawn away by a hood 53. In a modified form, the threads are withdrawn from the ribbon in stages ; the two at each side of the ribbon being withdrawn together and necessitating only sufficient tension to break one bond.
Patent GB-695798-A (GB)
Title: Improvements in or relating to the manufacture of thick films of hygroscopic, non-fibrous, organic material
Inventor: BOND GEORGE DOUGLAS
IPC: B29C48/03
Filed: 1950-07-14
Abstract: 695,798. Compound sheet materials. BRITISH CELLOPHANE, Ltd. July 9. 1951. July 14, 1950] No. 17704/50. Class 140. Thick films of hygroscopic organic material are formed by the union of two or more thinner films cast from a number of extrusion slits in a single film-casting machine and fed simultaneously through the machine for setting, purifying or other treatment, a coating of a liquid aqueous adhesive being applied on one or both of each pair of meeting surfaces before they are brought together. The laminated product is finally dried. The films may be of regenerated cellulose, e.g. from viscose, lowly substituted cellulose ethers, esters, and ether esters, and alginic acid derivatives. The adhesive may be gelatine, which may contain glycerine, urea, sodium orthophenyl-phenate, or sodium pentachlorphenate. Alternatively, sodium cellulose glycollate, urea-formaldehyde resin, dextrin, gum arabic, sodium silicate, casein, rubber latex, or an aqueous emulsion of partly polymerised methyl methacrylate may be used. The thin films may be laminated together by passing between rollers, or simply by leading the films to the same roller of a set of heated drying rollers, when the contraction on drying generates enough tension to press the films together. The adhesive may be applied warm or cold by spraying, brushing or rollers. The products may be used for adhesive tapes, bags, envelopes or tubes. Specifications 423,365, [Group IV], and 631,260 are referred to.
Patent GB-638714-A (GB)
Title: Improvements in and relating to gyroscopic devices
IPC: G01C19/30
Filed: 1947-07-04
Abstract: 638,714. Gyroscopic apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 4, 1947, No. 17721. Convention date, Jan. 22, 1943. [Class 97 (iii)] [Also in Group XXXV] A gyroscope having eddy current precessing means is provided with means for varying the reluctance between the magnet and the eddy current disc whereby the precessional torques may be varied. As applied to a gyroscope forming a lead computer for gun-control purposes, the gyro rotor 10, Fig. 2, and its driving motor 13a are mounted in a frame 11 rotatably mounted in a U-shaped bail 12, Fig. 1, which is, in turn, mounted in a frame 56 mounted on a support 58a. Mounted on the rotor and rotating therewith is an eddy current disc 14 co-operating with a magnet 15 mounted on a frame 17 depending from a U-shaped bail 61 also supported in the frame 56. Rotation in azimuth from the gun-sight is applied to gears 79 to rotate the frame 56 and thence the magnet, and to gear 60a to rotate the bail 12 and thence the gyro. Elevation of the sight is applied to the magnet by gear 67, gear train 71 ... 77 and the bail 61, and to the gyro by gear 83 and gear train 85 ... 90 to a bail 81 which rotates the shaft 12a carrying the gimbal frame 11 and the gyro 10. The gyro movement lags behind that of the magnet by an amount depending upon the velocity of movement of the magnet, which is proportional to that of the target, and upon the magnetic coupling between them. The magnetic coupling is adjusted by gears 93... 106 which rotate a bevel gear 51 adjusting the position of two iron slides in the magnetic circuit of the magnet 15 (see Group XXXV) in accordance with the appropriate ballistic characteristics of the gun necessary to give the appropriate lead correction to the line of fire of the gun with respect to the line of sight of the target. The lag of the gyroscope behind the magnet is maintained by contacts 92, on the frame 81 which co-operate with contacts 91 on the gyroscope to control motors incorporated in the appropriate gear train. The line of fire of the gun is kept in parallel relationship with that of the magnet and therefore is given the correct lead required by the speed of the target. Specification 578,958 and U.S.A. Specification 2,467,831 are referred to.
Patent GB-579777-A (GB)
Title: Pulse modulation systems
IPC: H03K7/08
Filed: 1943-10-29
Abstract: 579,777. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Oct. 29, 1943, No. 17891. [Class 40 (v)] Time-modulated pulses are produced by applying the signal voltage together with oscillations of pulse frequency to the circuit of a full-wave or half-wave rectifier. In Fig. 1, the oscillatory voltage is full-wave rectified by diode valves 62, 63, the cathodes of which are biassed in opposite senses by resistances 65 in the cathode lead of a valve 66 which has its grid excited by the signal voltage from the terminal 67. The voltage across the load resistance 64 takes the form shown at 46, Fig. 3, the alternate humps being of different duration and being applied to a valve 68 to give sharp impulses with variable spacing in the plate circuit of that valve as indicated at 52, Fig. 4. The impulses may be subjected to two differentiations before utilization. The valve stage 66 of Fig. 1 may be omitted, the signal voltage being applied through a transformer to the bias resistances 65 (Fig. 2, not shown). A single diode may replace the pair of diodes 62, 63 (Fig. 6, not shown). Specification 558,343 is referred to.
Patent GB-958494-A (GB)
Title: Process and apparatus for the cracking of hydrocarbons to produce a combustible gas
IPC: C01B3/46
Filed: 1960-05-20
Abstract: In a cyclic process for producing a combustible gas such as town gas from hydrocarbons such as methane, propane, butane and lower petroleum fractions, the heating phase comprises introducing through a duct 10 a mixture of a fuel gas and air into a mixing and combustion chamber <PICT:0958494/C3/1> 1, the resulting hot gases being passed through an outlet duct 11 to a reaction chamber containing a heat storage mass, and the production phase comprises introducing into the mixing and combustion chamber through the same inlet duct 10 a mixture of hydrocarbon in gaseous or vaporous form and steam or steam and air and passing the further mixed reactants into the reaction chamber to produce a combustible gas.  The stages may be separated by steam purging phases and the hydrocarbon reacted in the production phase may be used as the fuel gas in the heating phase. Preferably the duct leading to the mixing and combustion chamber 1 contains a vortex chamber 2 to impart a rotating motion to the media passing therethrough. Specification 958,495 is referred to.
Patent GB-530278-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/26
Filed: 1939-06-20
Abstract: 530,278. Knitting. SCOTT & WILLIAMS, Inc. June 20, 1939, No. 17997. Convention date, Sept. 27, 1938. [Class 74 (ii)] Relates to the provision of a plurality of pattern devices for controlling the yarn changing devices of a circular knitting machine, means cyclically moving the pattern devices through a plurality of cycles during the knitting of a stocking, and automatic means arranged to render either pattern device operative. The object is to provide a stocking top with a striping design contrasting with and more elaborate than the design of the stocking leg. Fig. 3 is a fragmentary elevation and Fig. 4 is a plan of pattern chain following devices and an element controlled thereby. A lever 58 pivoted at 60 is provided with an extension 62, acted on by cams 106 on the main pattern drum 64 of the machine. Two followers 68, 72 pivoted to lever 58 at 66, 70 respectively and independently operated by the lugs of two pattern chains are urged by weak springs 74, 76 against stop pins 78, 80 which limit their counter clockwise movements as viewed in Fig. 3. A bracket 84, pivoted at 82 to the lever 58 carries adjustment screws 86, 88 lined up with the rear of the followers 68, 72 respectively. These screws are arranged to be selectively located behind faces 87, 89 of the followers by the action of the cams 106 on a lever 100, which carries a screw 98 capable of releasing a depending arm 94 of the bracket 84. A spring 91 then brings the bracket 84 against a stop 92 and the screw 88 against the face 89 of the follower 72. When the cam 106 moves away, a spring 108 returns bracket 84 to a position in which the screw 86 is brought against the face 87 of the follower 68. Thus, either follower can be locked to the lever 58 to cause the lugs of its pattern chain to move the lever 58 correspondingly to effect yarn changes. The follower that is not locked to the lever 58 is idly oscillated by its pattern chain without effecting any positioning of the lever 58. Means is also provided for timing the pattern devices to bring each to a predetermined initial position during-the knitting of a portion of a stocking involving no patterning under their control. Specification 271,411, [Class 74 (ii)], is referred to.
Patent GB-381537-A (GB)
Title: Improvements in and relating to coin freed vending machines
IPC: G07F11/02
Filed: 1931-06-22
Abstract: 381,537. Coin-freed article delivery apparatus. SHEFFIELD STEEL PRODUCTS, Ltd., Templeborough Works, Tinsley, Yorkshire, BOOTH, J., Holly House, Woodhouse, Sheffield, SMYTH, R. H., 52, Burnt Ash Hill, and PAUL, F., 77, Burnt Ash Hill, Lee, London. June 22, 1931, No. 18072. [Class 27.] Articles stored in rows ; casings ; storage.- The apparatus is particularly adapted for use in vehicles, and comprises a shallow oblong casing a, Fig. 2, having a convex rear wall b and a flat front wall d with a projecting flange. It is mounted in a horizontal position where the wall and the roof of the vehicle merges, the whole of the casing except the flanged front face being concealed behind the vehicle wall. The machine comprises three sections side by side, viz. a magazine section e in which the articles are stored in a horizontal row, a delivery-drawer section f, and a portion g for the money-box. The magazine is composed of channel-section members k, Fig. 5, and the articles are pressed towards the delivery drawer by a ram h having vertical pins l passing through slots m in the members k and attached to springs n. The delivery drawer comprises a vertically-hinged pocket p similar to the vertically-hinged pockets described in Specification 295, 309, [Class 27, Coin-freed apparatus &c.]. Coin action.-A coin inserted through a slot s drops to a U-shaped bucket w, Fig. 5, pivoted at x and rests on a pin 10. When the drawer is pulled open, a bar 11 integral therewith or attached thereto engages the coin to depress the bucket, the coin then rolling down an incline 14 to the money-box g. If a coin is absent, the end of the bar 11 engages a toothed upper wall 15 of the bucket thereby preventing the drawer from being opened. Filling storage receptacles.-The magazine compartment e is normally closed by a locked cover-plate. For refilling, the ram h is drawn back until its pins l engage in offset ends 18 of the slots m. The ram can then be swung out around the pins l as a hinge to allow a fresh supply of articles to be placed in the magazine. "Empty" notices, displaying.-When the magazine is exhausted, the word "empty" on the ram shows through an opening u in the delivery drawer.
Patent GB-834315-A (GB)
Title: Synthetic resins containing titanium and phosphorus and manufacture thereof
Inventor: HUNTER DONALD NOEL
IPC: C08G79/14
Filed: 1957-06-06
Abstract: Polymers are prepared by condensing a tetrakis hydroxy alkyl phosphonium salt with an alkyl ester of titanic acid, the reaction proceeding by elimination of an alcohol between the two components. The phosphonium salt may be a bromide, acetate, sulphate, phosphate or preferably a chloride.  The ester is preferably butyl titanate. Di-functional reagents such as ethylene diamine may be reacted with the polymers to effect cross-linking.  In both the examples tetrakis hydroxy methyl phosphonium chloride is condensed with butyl titanate, preferably in the presence of a methanolic solution of magnesium methoxide as catalyst.  The products are extracted first with acetone and then with water.  The aqueous extract from Example 1 yields a clear, almost colourless, resin, and that from Example 2 yields a brown resin.  A yellow syrup is obtained from the acetone extract of Example 2.  The products have application in plastics, coatings and varnishes.