baber/WOPTO huggingface dataset:
Patent GB-1464491-A (GB)
Title: Sampling device
IPC: G01N1/20
Filed: 1975-03-20
Abstract: 1464491 Sampling apparatus POLYSIUS AG 20 March 1975 [23 April 1974] 11574/75 Heading B8N An apparatus for taking samples of granular or small-sized material discharged from a conveyer 3 comprises a sample receiving container 8 whose opening 12 is closed by a pivoted flap 4 and opened to receive a sample. The flap 4 is pivoted by a piston-cylinder unit 13 and is positioned on the discharge parabola 14 of the conveyer. A gamma radiation level sensor 11 and discharge conveyer 10 are associated with the container 8. In an alternative embodiment, Fig. 2 (not shown), the flap (34) is hinged at its lower edge and moves outwards into the stream of material. In a further embodiment, Fig. 3, (not shown), the container (58) is situated independently of the discharge parabola (64) and the flap (62) closes off the stream.
Patent GB-855293-A (GB)
Title: Improvements in cold cathode counting tube circuits
Inventor: JEYNES GRAHAM FRANK
IPC: H03K29/00
Filed: 1958-04-11
Abstract: 855,293. Multi-stable-state circuits. MULLARD Ltd. Dec. 10, 1958 [April 11, 1958], No. 11580/58. Class 40(6). [Also in Group XIX] In a chain of cold cathode stepping tubes the inter-stage coupling circuits each comprise a vacuum tube with its grid connected to the output of one stepping tube and the anode to the input terminals of the next tube the cathode being connected through a diode and resistor connected in parallel. The application of a negative pulse to the cathode of the inter-stage tubes causes the grid and cathode to function as a diode applying a negative pulse to the output terminal of the immediately preceding stepping tube, so that the tubes are returned to the zero position. Fig. 2 shows the inter-stage coupling between two cold cathodes stepping tubes V1, V3 in which a vacuum discharge tube V2 is connected between the final cathode Ko of tube V1 and the guide electrodes GA, GB of the tube V3. When it is required to reset the counting chain to zero a negative pulse is applied to line S so that each of the stages such as V2 conducts. The pulse is of sufficient amplitude to exceed the standing negative bias on line N so that the tube V2 draws grid current thus applying a negative pulse to the output cathode Ko of stepping tube V1. This restores the tube to its zero position. Since the duration of the reset pulse on line S is substantially greater than the time constant RL, CA the negative pulse at the anode of tube V2 due to the pulse at its cathode appears at the guide electrodes GA, GB. The discharge does not transfer to these electrodes since the electrode Ko of tube V3 will also be held negative or, if the discharge does transfer to GA or GB it transfers back to Ko of tube V3 as the pulse at the guide electrodes decays and they return to the positive bias potential on lead G. Thus when the negative reset pulses terminates all the stages will remain at the zero positions. In the modification Fig. 3 (not shown) the inter-stage tube such as V2 share a common diode and resistor network in their cathode circuits. The final tube of the chain may be reset to zero by connecting the final cathode Ko of the final tube to the line S so that the negative pulse is applied also to this electrode, Fig. 4 (not shown).
Patent GB-216122-A (GB)
IPC: G01R11/36
Filed: 1924-05-10
Abstract: 216,122. Strelow, W. May 17, 1923, [Convention date]. Induction motor meters having a U-shaped current magnet a and a U-shaped or L-shaped pressure magnet c on opposite sides of the armature disc b are provided with a counter pole d having a tongue g for the return of the active flux of the pressure magnet and with lugs e, f spaced apart for attachment to the current magnet a. The counter pole d is attached to the pressure magnet c by a screw i passing through the yoke h and a nut k, with the interposition between the pressure magnet and the yoke h of the counter pole of one or more layers l of iron, nickel, copper, &c. in order to adjust the phase of the pressure flux or the torque of the meter.
Patent GB-1520103-A (GB)
Title: Production of liquid oxygen and/or liquid nitrogen
IPC: F25J3/04
Filed: 1977-03-19
Abstract: 1520103 Air separation processes AIR PRODUCTS & CHEMICALS Inc 19 March 1977 11755/77 Heading F4P In a two-stage air separation process for producing liquid oxygen and/or liquid nitrogen, the cold requirements are provided by dividing the compressed, dry and CO 2  free air into a first stream 12 and a second stream 13, tapping off a side stream from the first stream, expanding the air in the side stream at 17 and using it in a heat exchanger 16 where it cools the first and second streams, expanding the second stream at 22 and using part of that air to cool the first stream in a second heat exchanger 18. The expanders 17 and 22 are coupled to compressors 14 and 20 respectively. The remainder of the second stream is fed to a high pressure column 25 as is the first stream after being expanded through a valve 19.
Patent GB-211757-A (GB)
Title: Improvements in and relating to colour screens for use with cinematograph and like projectors
IPC: G03B33/08
Filed: 1923-05-01
Abstract: 211,757. Berry, P. W. May 1, 1923. Optical-projection apparatus; colour screens.- A colour screen for use with a kinematograph or like projector comprises a single glass unit which has a continuous series of merging colours thereon and is detachably carried in a frame movable in guides by screw means; a repeating series of colours may be provided so that the projected colour cycle may be repeated without bringing the screen to its initial position. As shown, a colour screen 7 in a frame 8 is detachably secured in a frame 11 by catches 10, the frame 11 being provided with shoes 12 which are slotted to travel on guide bans 14, 15 carried by standards 2 secured to a base 1. A screw 5 having a handle 6 is mounted in bearings 4 on the standards and is engaged by a nut 16 connected to the frame 11. Protecting glasses may be provided on each side of the screen 7 one of which may be adapted to diffuse the light beam.
Patent GB-1147045-A (GB)
Title: Improved photographic, gelatin-containing layers
Inventor: KEBERLE WOLFGANG
IPC: G03C1/04
Filed: 1966-03-17
Abstract: 1,147,045. Anionic polyurethanes. AGFA. GEVAERT A.G. 17 March, 1966 [17 March, 1965], No. 11851/66. Heading C3R. [Also in Division G2] Anionic polyurethanes are made by dehydrating an adipic acid-hexanediol-neopentyl glyco] polyester (OH-number 63À65À85) for-30 minutes at 120‹ C. in vacuo and reacting it with hexane- 1: 6-diisocyanate, dissolving the prepolymer in acetone or tertiary butanol and reacting it with an aqueous solution of one of the following:- sodium aminoethane sulphonate; a mixture of diethylene-triamine, succinic anhydride and potassium hydroxide; sodium or potassium 1: 2-diaminoethane-N-propane sulphonate; a mixture of neopentyl glycol and potassium 1: 2-diamino-ethane-N-propane sulphonate with or without diethylene glycol; potassium N-(#- aminoethyl)-#-aminopropionate; and the potassium salt of glycine. An anionic polyurethane is also similarly prepared from polypropylene glycol (OH-number 56), hexane-1: 6-diisocyanate and potassium 1: 2-diaminoethane-N-propane sulphonate.
Patent GB-126991-A (GB)
Title: Improvements in or relating to Lathes and like Machines for Turning or like Purposes.
Inventor: ISNARD MAXENCE
IPC: B23Q1/01
Filed: 1916-08-21
Abstract: 126,991. Isnard, M. Aug. 25, 1915, [Convention date]. Lathes and like machines, particularly designed for turning shells, have a frame constituted by three bars c connecting three preferably triangular frames a, a<1>, a<11>. The frame a constitutes the tailstock, and the other two the headstock. Bars g, with eccentric ends journaled in the frames a, a', serve as a bed and are linked by levers j to feed the saddle laterally to put on the cut. This motion may be controlled by a fixed former engaging the linkage. The feed-nut is between two cheeks on the lower side of the saddle i, which thus can move laterally independently of the lead-screw v. The noses of the shells are turned by a tool on a rest l pivoted to a pin o in a slot in the slide i. At the beginning of the curve, the pin o comes into contact with an adjustable stop on the frame a", so that the further advance of the saddle causes the rest to swing about the pin o under the action of a stop n on the slide.
Patent GB-126960-A (GB)
Title: A Process of, and Apparatus for, the Extraction of Hydrocarbons from Oil.
IPC: C10C1/04
Filed: 1919-05-12
Abstract: 126,960. Soc. de Fours Ó Coke et d'Entreprises Industrielles. May 13, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydrocarbons, distilling; rectifiers. - In the con. tinuous distillation of oils, particularly oils that have been used for washing natural gas or gas produced by destructive distillation, two distillates are obtained by evaporation in a surface heater and by means of free steam successively. The vapours are rectified separately for the production, in the case of oil used for washing coal-gas, of benzol and of a mixture of xylenes and cumene. The oil is passed through preheaters 2, 5 and flows by a pipe 6, first into a tubular heater 7 heated by steam, and thence by a pipe 8 to a cylinder 9 heated by a steam coil 11 and supplied with free steam by a pipe 12. The vapours thus generated pass by pipes 13, 19 to liquidseparators 14, 20, and thence by pipes 16, 22 through rectifying-devices to the preheaters 2, 5 and condenser 18, 24, in which the desired distillates are collected. The rectifying-devices may be of the columnar type or of the " kinetic and adiabatic type " comprising insulated conduits 16, 22 to which condensates formed in :he preheaters 2, 5 are returned at varying points by pipes 16a, 22a respectively. A portion only of the crude oil is passed through the preheater 2, the proportion being regulated by valves 1<a>, 4<a> in the main and by-pass pipes 1, 4.
Patent GB-442986-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04B1/46
Filed: 1935-04-17
Abstract: 442,986. Wireless signalling. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. April 17, 1935, No. 11870. Convention date, April 25, 1934. [Class 40 (v)] In a combined transmitter-receiver, the speech currents from the microphone M, in addition to feeding the modulation transformer TM, are used to disable the receiver and remove a disabling voltage from the master oscillator. For this purpose two rectifier-filter systems GS comprising dry rectifiers connected as a Graetz bridge produce D.C. control voltages in the resistances R1, R2, which control the bias of the master oscillator and some of the receiver valves respectively.
Patent GB-497538-A (GB)
Title: An improved visible card index
IPC: B42F17/18
Filed: 1938-04-20
Abstract: 497,538. Visible-card indexes. GRIERSON, H. K. (Brangham, F. D.) April 20, 1938, No. 11881. [Class 146 (i)] In a visible-card index, each card is secured at its upper corners to a base 1 by means of a pair of loop members 3 projecting from the surface of the base 1. Tongues formed by slitting the side edges of the cards are inserted in the loops by bending the cards. Each series of loops may be formed from a single length of tape or fabric 3a which is secured to the underside of the base 1 with the loops passing through narrow slots 4 on the base. A narrow strip 6 of stiff paper or thin metal is secured to the inside surface of one of the walls of each pair of loops to space the loops and act as a support for the cards. The base 1 may be in the form of a cover.
Patent GB-198182-A (GB)
Title: Improvements in and relating to instruments adapted to directly measure and indicate electrical resistance
IPC: G01R27/02
Filed: 1922-04-28
Abstract: 198,182. Evershed & Vignoles, Ltd., and Rolfe, G. B. April 28, 1922. Resistances, measuring; electromagnetic c u r r e n t meters.-An instrument for directly measuring electrical resistance comprises one or more permanent magnets the ends of which form pole-faces and a unit consisting of a non- magnetic bracket, the moving ratio coils and their supports, the core and conducting ligaments and the ligament retainers,. the unit being assembled into the magnets in a direction at right-angles to the pivotal axis of the coils and being mechanically connected to the magnets. The unit may thus be applied to any suitable magnet, and is readily removable with the electrical connections for repair and replacement. The magnet is of such cross-section that suitable pole-pieces are formed when the tunnel for the coil system is bored, no separate pole-pieces being used. In one form, the axis of the coil system 59, Figs. 1 and 3, is radial to the circular magnet 54, and the non-magnetic bracket 64 is attached to the magnet 54 by screws 67 and has arms 65, 66 carrying the pivot jewels 58, 58<a>. Stationary ligament retainers 69, 70 limiting the motion of the ligaments 61, 62, 63 when subjected to vibration or shock are mounted on the screwed exterior of the jewel 58 so as not to lie between the pivots, the length, mass and moment of inertia of the moving system being thus reduced. The ligaments 61, 62, 63 are supported on the bracket 64 and are connected to the coils 59 by conductors 71 clear of the flanges on the retainers 69, 70. In a modification, the magnet is bent into the form of a rectangle, and the axis of the coils is at right angles to the plane of this rectangle.
Patent GB-542654-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/34
Filed: 1940-07-20
Abstract: 542,654. Transformers; condensers. HANSELL, J. B., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 20, 1940, No. 11963. Addition to 426,561. [Class 38 (ii)] [Also in Group XXXVI]  In a transformer rendered surge-proof by an arrangement of condensers associated with the windings as described in the parent Specification, each condenser comprises a pair of conducting wires or strips 4, 5, at least one of which has an insulating covering, helically wound on a flat strip of insulating material 2 which is subsequently bent and mounted on supports 21, 22 so that each condenser 25 lies closely adjacent the transformer winding 11. The conductors forming the condenser may be so arranged that they alternate in polarity either along the layers, Fig. 1, or in a radial direction, i.e. from layer to layer, Fig. 3, or both, Fig. 4. In a modification, Fig. 8, each condenser element comprises two condensers in series formed by winding conductors in different zones on the strip support 2 and extending one of the conductors in one zone to form one of the conductors in the other zone, the external connections being made to the non-interconnected conductors of the two zones.
Patent GB-1327991-A (GB)
Title: Phase separator for immisible fluids
IPC: B01D17/02
Filed: 1971-04-28
Abstract: 1327991 Phase separator PETROLITE CORP 28 April 1971 [26 May 1970] 11988/71 Headings B1D and B1M A phase separator for separating immiscible fluids in a flow, e.g. oil and water or oil, water and natural gas such as well fluid, comprises a horizontal cylindrical separation vessel 11 (Fig. 1) divided by baffle 12 into an upstream separation zone 36 with inlet 15 and a downstream separation zone with outlets 54, 58 and 62 for gas, oil and water respectively, outlets 58 and 62 having valves which are opened and closed by ball-floats at the oil-gas interface 57 and oil-water interface 61 and outlet 54 having a back-presser valve 56. The incoming fluid mixture is passed around a heater 31 in the form of a fire-tube to aid separation into the three components. Upon separation oil-gas interface 37 and oil-water interfaces 61, 61a are formed. Separated gas flows without obstruction through passageway 18 in baffle 12 and leaves through valve 56 when it attains the desired pressure. Separated water 34 flows without obstruction through passageway 17 under baffle 12 and is removed by pipe 62 when the oil-water interface 61 rises to a predetermined level. Separated oil, however, is prevented from flowing without obstruction to the downstream zone by the restricted size of orifices 16 forming the oil passageway; with the result that oil flow through the orifices is at a back-pressure compared with the unobstructed flow through openings 17 and 18. The dimensions of orifices 16 are correlated to the vertical distance between the pre-set level at which the water outlet 62 opens and the level of passageway 17 with the result that the interface 61 will always remain below the level of oil outlet 58 but above passageway 17. A pair of electrodes 38, 41 are provided in the downstream zone to provide an electric field to aid separation. In the apparatus of Fig. 2 there is no heater and incoming fluid has a rotary motion imparted to it by inlet 72. A number of short baffles 77-81 are provided to make the fluid follow a diverse path. The baffle 76 separating the vessel into upstream and downstream separation zones this time has orifices 86 and 87 for unobstructed flow of oil and water respectively and it is the flow of gas through orifice 84 that is at a back-pressure. The oil passes upwardly through a filter 92 in the downstream separation zone to reach the oil outlet 94. An apparatus is also described (Fig. 3, not shown) in which there are a plurality of separation zones each separated from the next by a baffle having two passageways for unobstructed flow and done for restricted flow.
Patent GB-610988-A (GB)
Title: Water softening
IPC: C02F5/02
Filed: 1946-04-18
Abstract: A process for softening water comprises treatment of the water with lime and/or sodium carbonate or caustic soda to precipitate calcium carbonate and/or magnesium hydroxide therefrom, coagulation of the precipitate by adding soluble silica, and, if desired, sodium aluminate or aluminium sulphate, and thereafter separating the precipitate from the water.  The soluble silica is preferably a sodium silicate solution which has been nearly neutralised by addition of sulphuric acid or chlorine, or by converting the caustic alkalinity to carbonate by treatment with carbon dioxide or sodium bicarbonate.  The silica solution may contain 0.1 to 3.0 per cent Si O2, and 1 mole Na2O per 10 to 50 moles of Si O2.  The amount added is between 2 and 50, (preferably between 5 and 20), parts by weight of Si O2 per million parts of water.  Four examples of the process are given.
Patent GB-586757-A (GB)
Title: Improvements in or relating to springs for use in bedding and upholstery and the like
IPC: A47C27/06
Filed: 1944-06-23
Abstract: 586,757. Spring upholstery. BOYD, J. D. June 23, 1944, No. 12015. [Class 52 (iv)] [Also in Group XXXII] To control the expansion of a spring for bedding and upholstery, a tape or cord 14 connects caps 11 in which the ends of the spring are secured, each cap being associated with means for attaching the device to the bedding or upholstery fabric or upholstered article. As shown, in Fig. 1, each cap 11 is formed with a screwthread 12 for engagement by the end coil or coils of the spring, the cord 14 connecting apertured lugs 13 on the caps. Alternatively, the end coils of the spring may be engaged by internally-projecting lugs on the cap, or the cap may be secured to the spring by stitching, tapes or like means or may be a tight push fit on the spring. A fabric, e.g., a calico, cylinder 16 encases the spring, being held in position by elastic rings 17, and incorporates longitudinal elastic threads to prevent bagging of the cylinder when the spring is compressed. A stud or button 20 is provided on each cap for engagement with a buttonhole in the covering fabric and the sides of each cap may also be slotted for the passage of a tape or thread to secure a number of springs in position in an assemblage. Instead of a button, the cap may be fitted with one element of a press or screw fastener or with a cuff-link or like fastener. The caps 11k, Fig. 6, are of textile material, e.g., felt, each stiffened by a cardboard or other rigid disc 39 and stitched at 40 to the spring coils, and the encasing bag 16k is also secured to the caps by stitching 41. A cuff-link 42 provides the fastening means, the tape of which is knotted against the disc 39. When formed of a hard substance, the caps may be outwardly tapered to minimize contact with adjacent units. According to the Provisional Specification the caps may also be grooved circumferentially to receive an elastic ring or buffer.
Patent GB-101619-A (GB)
Title: Improvements in and relating to Rakes of Beetroot and like "Topping" Machines.
Inventor: JACK JOHN HENRY
IPC: A01D23/06
Filed: 1915-09-28
Abstract: 101,619. Jack, J. H., (Landrain frÞres). Sept. 28, 1915. Crops, root, topping machines for.-Consists in the combination with a root-topping machine of a rake for collecting the tops as they are cut off and discharging them in a row upon the ground behind the machine. The rake, which is of known construction, is mounted in a frame 38 connected at each side to the frame 1 of the root-topper by links 37, pivoted to both the frames 38, 1. The height of the front part of the frame 38 is adjusted by means of a hand-wheel 59 on a screw shaft 60, which is held in a frame 35 pivoted on the links 37, and screws into a bar secured to the frame 1. The rear end of the frame 38 is adjusted by a hand-wheel 53 operating a screw, by means of which the bracket 54 attached to the frame 38 is caused to slide up or down on the standard 56 of the rear castor wheel 58. The rake 62 is driven by bevel-gearing from a shaft 42, which is operated by the chain gearing 44, 45, 46 from the axle 43 of the rear wheels of the topping-machine. The chain-wheel 46 is connected to the axle 43 by means of a toothed sliding spring clutch and can be thrown out of engagement with the axle by means of a lever 50 and suitable links and connexions. The lever 50 is operated by the movement of the lever 28, which throws the topping-mechanism simultaneously out of action.
Patent GB-1463403-A (GB)
Title: Forming polyurethane layers
IPC: D06N3/00
Filed: 1974-03-19
Abstract: 1463403 Flexible polyurethane coatings BRITISH UNITED SHOE MACHINERY CO Ltd 19 March 1974 [20 March 1973] 12117/74 Heading C3R [Also in Divisions B1-B2] Flexible polyurethane coatings are prepared by mixing polyurethane-forming reagents under temperature conditions maintaining the reagents in liquid condition, the reagents comprising a polyisocyanate, a polyol and an amine, in relative proportions reactive to form an intermediate stage material, supplying the reacting mixture to a bank of intermediate stage material maintained under high rates of shear to blend freshly formed mixture with previously mixed material in the bank, and while continuing the shearing action, withdrawing portions of the blended material from the mass while the mass remains spreadable, spreading the withdrawn portions in a layer on a surface and then heating the layer to effect curing. The coating process is preferably a continuous one using the apparatus shown in Fig. 1. In this process a quasiprepolymer is placed in container 10 and an amine-containing component in container 12. Liquid is drawn from containers 10 and 12, rapidly mixed in a mixer 13 and supplied continuously through conduit 14 for deposition on a continuously moving surface 16. This surface is suitably a backing fabric which is drawn from supply roll 18, passes under a roll 20 and is laid down on a driven belt 22. The belt is driven by rolls 24 and passes over a supporting surface 26 in spaced relation to a spreader element viz. a knife member 28. Freshly mixed material is carried by surface 16 to knife member 28 where a rolling bank 32 of the reaction mixture is maintained. Knife member spreads the mixture as a uniform layer 34 on the surface 16. This layer is then carried through a heating chamber 36 for curing. In examples the surface 16 is a nylon fabric or a silicone treated release paper, in the latter case a napped fabric being coated by the transfer process.