baber/WOPTO huggingface dataset:
Patent GB-698277-A (GB)
Title: Improvements in or relating to the continuous distillation of mixtures, especially coal tar mixtures
IPC: C10C1/04
Filed: 1951-01-26
Abstract: In the continuous fractional distillation of multicomponent p  liquid mixtures such as coal or lignite tars, the mixture is heated in several successive stages each associated with a fractionating column, the temperature range through which it is heated in any given stage being relatively small, e.g. 20-40 DEG C; part of the mixture discharged from each heating stage is introduced into the corresponding fractionating column, and part is passed on to the next heating stage, the proportion of mixture supplied to the <PICT:0698277/III/1> <PICT:0698277/III/2> column and to the next heating stage being adjustable.  The mixture withdrawn from each heating stage is preferably passed through a coil immersed in the liquid at the base of the column associated with the previous heating stage, before being introduced into the column associated with the heating stage under consideration.  The pressure is preferably reduced in the successive columns or at least in every third column; a high vacuum being maintained in the last column.  Each column may be provided with a side column.  Coal tar is fed through line 1, Fig. 1, to heat-exchangers 2b-2w, wherein it is heated by the vapours from column B-W.  The pre-heated tar passes into heater 3b in which its temperature is raised by 20 DEG  to 40 DEG C, and the vapours, together with part of the unevaporated tar, are introduced through duct 4b into column B.  The vapours leaving the head of column B are passed to heat-exchanger 2b and cooler 6b; and the condensate is passed to separating-bottle 7, from which part of the decanted raw benzole is returned as reflux to column B, and the remainder is withdrawn from the system through outlet b.  The unevaporated tar which is not introduced into column B through duct 4b, is passed through valve-controlled by-pass 9b to join the liquid withdrawn from the base of column B; and the mixture is then passed through heater 3c.  The vapour and part of the residual liquid leaving heater 3c is passed through a coil in the base of column B, and is then introduced into column C.  The subsequent stages of the apparatus operate in the same way as the first stage.  The heaters 3 are arranged in a common unit 10, which is supplied with hot combustion gases through duct 11. The gases, having passed along unit 10 in a direction countercurrent to the tar, leave the unit through duct 12.  In Fig. 2, columns L and N are provided with side-columns M and O respectively; and fractions are withdrawn from the base of each side-column.  Side-column M is heated by the vapour and part of the liquid from heater 3l after it has passed through the coil in the base of column L but before it is introduced into column N; a side-column O is heated in a similar manner.
Patent GB-678261-A (GB)
Title: Method of removing zinc from copper base alloys containing zinc
IPC: C22B15/14
Filed: 1945-01-26
Abstract: 678,261. Distilling zinc. EVANS, A. J. S., (Revere Copper & Brass, Inc.). Jan. 26, 1945, No. 2129/45. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 28, 1945.1 Class 82(i) [Also in Groups XI and XII] A method of removing zinc from copper base alloys containing zinc comprises heating a body of the molten alloy having a free surface to at least the melting point of its non-zinciferous content to evaporate zinc therefrom under substantially non- oxidizing conditions in the presence of elemental carbon having an incandescent surface intersecting the said free surface of the molten alloy, the residual amount of zinc in the molten metal from which it is so removed being not greater than 10 per cent. The alloy may be made to flow substantially continuously through a container which provides a relatively large free surface in proportion to the volume of the alloy contained therein. In the apparatus shown in Fig. 2 alloy is fed to the melting furnace through a screw conveyer 93, gate 99 and duct 101 which collectively serve to prevent ingress of air to the furnace. The alloy is melted by heat radiated from resistance heaters 73. Any dross. formed is removed by duct 81 and molten alloy is taken from the bottom of the furnace via ducts 81 and 59 to the evaporation furnace. Molten alloy collects in a shallow tray at least the side walls of which comprise elemental carbon. The alloy and the carbon surface are heated by radiation from the resistance heater 35 and from the refractory roof 45, the zinc vapour evolved being removed by duct 69 to a condenser. Residual metal discharges into a pot 63 from which it is tapped as required from duct 65. Alternatively continuous passage of metal through the furnace may be obtained by withdrawing molten metal through an air lock at the outlet. Inert gas may be introduced into the furnace through pipe 125 to dilute the zinc vapours and sweep them towards the vapour outlet 69. Dilute zinc vapour enters a zinc condenser, Fig. 18, at lower header 175 and rises through tubes 177 which are maintained at the required condensation temperature by flames from gas jets 185 outside each tube. By suitable adjustment of the condenser temperature zinc is condensed in liquid form and runs downward through the tubes into the lower header from which it is removed by duct 193. Uncondensed gases are removed through a vent 179 in which a valve 181 serves to adjust the gas pressure in the furnace and condenser.
Patent GB-1169422-A (GB)
Title: Fluid Transfer Apparatus.
IPC: B67D9/02
Filed: 1967-01-16
Abstract: 1,169,422. Liquid cargoes discharging; counterbalancing. FMC CORP. 16 Jan., 1967 [14 Feb., 1966], No. 2170/67. Headings B8B and B8E. Apparatus for transferring liquid from ships to shore comprises pivotally connected inner and outer pipes 38, 44 mounted on support 10 and connected to a riser 14 for pivoting about horizontal and vertical axes. Hydraulic cylinders 76 acting on a chain 80 trained round a sprocket 75 raise and lower the combined pipes while the outer pipe is pivoted about the inner pipe by hydraulic cylinders 114 acting through a chain 116 to rotate a sheave 85 connected by a cable 91 to an outer sheave 90 to rotate it. An auxiliary counterweight 126 mounted on inner and outer arms 122, 120 connected to the sheave 85 and a sprocket 110 engaged by the chain 116 balances the pipe 44 during its movement relative to the pipe 38 while a main counterweight 54 mounted on an arm 52 secured to the pipe 38 balances both pipes 38, 44 during their combined movement. Cylinders 135 are provided to slew the pipes on the riser 14 through a cable 137.
Patent GB-238460-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: B04B11/08
Filed: 1925-01-24
Abstract: 238,460. Molen, E. van der. Jan. 24, 1925. Strainer separators; discharging.-Deposited solids such as sugar or the like are removed from a centrifugal basket by a scraper supported' by a guideway over the basket; a coupling device causes the guideway and spindle to oscillate together while the guideway is prevented from rotating with the spindle. The spindle 5 carries the basket 6 within the stationary casing 7 which supports the guide 11 composed of four parallel bars. Two slides 12, 13 work between these bars on opposite sides of the spindle. The slides are connected together by a strip 14 and support the scraper-knife 8 and a plough 9 which directs the loosened material to the opening 10. To bring the scraper into engagement with the deposited solids the slides are moved along the guide 11 by means of the screw 33. The casing carries angle pieces 16, 17 with rubber buffers 18 to prevent the guide from rotating with the basket. The guide 11 also carries two slides 27, 28 with bearing ends 29, 30, each adapted to encircle the spindle 5 through about a quarter of its circumference. The slides are moved to engage the spindle by a screwed spindle 31 so that the basket and scraper maintain a constant relative position during any oscillation. A short scraper may be used and may be reciprocated to cover the full length of the basket; the scraper may be mounted for rotation on a vertical axis to vary the cutting angle. In a modification the means for operating the slides 27, 28 are coupled with those for operating the scraper, so that the scraper can only be moved into cutting position when the slides are moved to clutch the spindle 5. In another modification, a two part ring 48, Fig. 6, is supported by the guide 11 and carries two perforated lugs to receive coupling pins 49 flexibly attached to the ends of the bifurcated lever 50 which rotates in a vertical plane on a pivot 51 in a bracket on the guide 11. The end of the lever 50 has rollers engaging in a cam groove in the slide 12 which can be moved to cause the pins to pass through the perforated lugs and engage in holes in the guide 11. In the retracted position when the pins are freed from the guide but are left in the lugs the flexible mounting permits them to oscillate with the ring 48 and the spindle 5.
Patent GB-123069-A (GB)
Title: Improvements in or relating to Closet-basins, Drains and like Traps.
Inventor: BOURDONCLE LOUIS-NESTOR
IPC: E03C1/29
Filed: 1919-01-29
Abstract: 123,069. Bourdoncle, L. N. Jan. 10, 1918, [Convention date]. Closet basins.-A funnel-shaped member c is supported inside a basin d. It is formed integral with a dish e, the whole forming a trap. The funnel c and dish e are connected by ribs f which form a grid to prevent large bodies passing out.
Patent GB-767640-A (GB)
Title: Improvements in and relating to toy tracks
IPC: A63H18/02
Filed: 1955-01-26
Abstract: 767,640. Tracks for toy vehicles. GARDIOL, F. Jan. 26, 1955 [Feb. 8, 1954], No. 2316/55. Class 132(3). A track for toy vehicles is made of flexible material, e.g. polyvinylchloride or natural rubber and consists of sections having longitudinal cores 4 and guiding flanges 3, the cores projecting from one end of each section for engagement in recesses 5 in an adjacent section. The sections are deformable, Fig. 5, and the cores 4 are of such material, e.g. soft copper, that the sections retain the form to which they are set. Strengthening ribs 6 are provided.
Patent GB-960019-A (GB)
Title: Improvement in and relating to nuclear reactor cores
Inventor: OLIVER JOHN
IPC: G21C5/02
Filed: 1962-01-23
Abstract: 960,019. Moderator structures. NUCLEAR POWER PLANT CO. Ltd., and A.E.I. -JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., [trading as NUCLEAR POWER GROUP]. Jan. 2, 1963 [Jan. 23, 1962], No. 2368/62. Heading G6C. Leakage of coolant between adjacent blocks of moderator, arranged as a hollow column through which coolant flows, is prevented by a sealing arrangement which comprises a sealing ring located in a recess formed between abutting end faces of adjacent blocks. The moderator is preferably graphite, the coolant a gas, and the sealing ring is metal, preferably a magnesium alloy. In the first embodiment, Fig. 1, the ring 4 may be either elastic or plastic at the core operating temperafure, in second and third embodiments (Figs. 2, 3 not shown), a sealing ring is used which remains elastic at the core operating temperature, and sealing is effected by thermal expansion of the ring. A modification, Fig. 4, utilizes two angle section sealing rings 7, 8, although it is not essential for the inner ring to have an angle section. The outer ring is free to move axially, and if a gas leak develops between two blocks from the kone 3, gas enters the cavity defined by the rings 7, 8, and forces the ring 8 upwards into sealing engagement with the end face of the upper block.
Patent GB-706069-A (GB)
Title: Improvements in or relating to radio direction-finders
IPC: H01Q21/26
Filed: 1952-01-30
Abstract: 706,069. Radio direction finding. COLE, Ltd., E. K., and BILSKI, S. Jan. 28, 1953 [Jan. 30, 1952], No. 2461/52. Class 40 (7) A radio direction-finder for indicating the bearing of a horizontally polarized incoming wave comprises two horizontal dipole aerials the elements of which project from and are supported by a common junction box with which they may rotate in a horizontal plane as a unit. Adjacent pairs of elements are connected together electrically at their inner ends and two respective ones of two conductors feeding a receiver arranged to give an indication of the voltage difference between the conductors as the aerial system is rotated. The position of the aerial when there is no signal pick up gives an indication of the transmitter bearing. In a preferred embodiment adjacent elements of dipoles A1, A2 ; B1, B2 are separated by an angle of 90 degrees.
Patent GB-682651-A (GB)
Title: Improvements in pump mechanism with long pump strokes, more especially for delivering petroleum
IPC: E21B43/12
Filed: 1951-02-01
Abstract: 682,651. Deep-well pumps. SCHOELLERBLECKMANN STAHLWERKE AKT.-GES. Feb. 1, 1951 [Feb. 6, 1950], No. 2514/51. Class 102 (i). In an oil pump, the pump rod 22 is attached to a pair of chains 17, 17<SP>1</SP> that pass over a pair of sprockets 18, 19 and a further pair of sprockets 15, 16, mounted on a shaft 14, and carrying a counterbalance 20. The shaft 14 is driven by chains 13, 13' on sprockets 12, 12<SP>1</SP> and 15<SP>1</SP>, 16<SP>1</SP>, the sprockets 12, 12<SP>1</SP> being mounted on a shaft driven through bevel gearing 11 from a shaft 10. The drive for shaft 10 is taken from motor 1 through shaft 2, on which are mounted couplings 3, 4, and either gearing 5. 5' or chain 6. to shaft 7, worm 8 and wormwheel 9. The couplings 3, 4 are actuated by rod 21 on which adjustable stops 26, 26' are fitted that are engaged by the counterbalance 20. When one coupling is engaged, the shaft 7 is driven in one direction and in the other direction when the other coupling is engaged. The sprockets 18, 19 can be lifted from the line of the bore. the frame 23 having a stop 24 to limit the lift; the chain can be locked so that the lifting is made automatically by the counter weight when the rod 22 has been disconnected.
Patent GB-1073866-A (GB)
Title: Process for the production of unsaturated polyaldehydes
IPC: C08G2/00
Filed: 1966-01-20
Abstract: High molecular weight soluble (defined) polyaldehydes with an acetal structure are obtained by polymerizing monomer a ,b -unsaturated aliphatic, aromatic, cycloaliphatic or heterocyclic aldehydes in the presence of cyanides and/or rhodanides of metals of the first and second Primary and Secondary Groups of the Periodic System according to Mendeleef and in the absence of oxygen and water.  The polymerization is carried out in the presence of organic solvents at a temperature of from 100 DEG  to - 80 DEG  C.  The polymerization may be stopped by the addition of water or acidic compounds in the presence of inhibitors for radical reactions.
Patent GB-1532491-A (GB)
Title: Flapper flush valve
IPC: F16K33/00
Filed: 1976-01-23
Abstract: 1532491 Cisterns AL SCHMIDT 23 Jan 1976 02719/76 Heading E1C [Also in Division F2] In a cistern flushing flap valve the amount of water discharged from the cistern is controlled by varying the buoyancy of a ventedfloat chamber by admitting water to it. The flap valve 20, of an elastomer such as rubber has a sleeve 28 for attaching the valve to an overflow pipe, a hinge portion 26, a closure portion 22 for sealing an outlet from the cistern and a flat chamber 34. In a first embodiment, Fig. 3, a ball check valve 46 controls the entry of water to the float. If an operating chain 42 is pulled gently the ball seals the entry and the float preserves its buoyancy resulting in a full flush of the cistern. If, however, the chain is jerked the ball will fall into the main part of the chamber, water will enter the float chamber and the valve will close before the cistern has fully emptied resulting in a saving of water. In a modification, Figs. 7, 8 (not shown) a rotary sleeve insert (90) having a slot in its side is provided in the water inlet to the float to achieve a variable flushing action. In a second embodiment, Fig. 9, the ball check valve is provided in a pocket on the inside wall of the float to control the venting of air directly. In this case, however, a gentle pull fails to dislodge the ball and the air is still vented, resulting in a partial flush. A more vigorous pull dislodges the ball, venting of air is stopped and a full flush results. In a yet further embodiment, the check valve may be dispensed with, the water dispensed being in accord with the setting or diameter of the water inlet orifice in the float.
Patent GB-937962-A (GB)
Title: Improvements in drive means for screens
IPC: B07B1/42
Filed: 1961-01-24
Abstract: 937,962. Screening apparatus. R. HALSTRICK. Jan. 24, 1961 [Jan. 25, 1960], No. 2729/61. Class 117. [Also in Group I] In a screen in which the screening surface is formed by bar elements, alternate ones of which are associated with one of two relatively-moving systems, of which systems at least one is driven, the screen elements of the driven system or systems are mounted on cross members driven by eccentrics. In Figs. 1 and 2, hollow cross members 1, 4 are associated with one system and similar members 2, 3 are associated with the other. Each of these members is driven by a pair of eccentrics housed within it (one at each end), and mounted on a shaft 25. The shafts are connected, and one is driven by a pulley 18. Cross members 1, 4 are connected by rigid or elastic longitudinal members 6, 6<SP>1</SP> and cross members 2, 3 by similar members 5, 5<SP>1</SP>. Further cross members 7, 7<SP>1</SP> are connected alternately to the two systems. On all cross members are placed further cross members 14 (see especially Fig. 1), which support flat bar-shaped elements transversely of them on edge. These elements together form a screen of the kind described in Specification 816,362. The elements have mutually interengaging projections on their vertical faces. In Fig. 10 (not shown) the hollow cross members each support a frame which is rectangular in elevation. The aligned upper parts of the frames carry one screen, and the aligned lower parts carry another screen. In Fig. 11 (not shown) the eccentrics rotate in downwardly extending fixing members for the screen elements, and in Fig. 12 (not shown) they rotate in the members 5, 6; in both cases the hollow cross members are dispensed with. In Fig. 14 a central tube 1 has rotating within it a pair of eccentrics mounted on a shaft 25<SP>1</SP>. The eccentrics appropriate to the other system are angularly displaced with respect to the first pair but are mounted on the same shaft and rotate within tubes 3, 4. The shaft 25<SP>1</SP> also carries out-of-balance weights 28 which impress a supplementary oscillation on the entire assembly. Fig. 15 shows diagrammatically two cross members 1, 2, each associated with one system, the ends of the longitudinal bars 5, 5<SP>1</SP>, 6, 61 being supported by elastic members 27, 27<SP>1</SP>. In Fig. 16 (not shown) the second system is driven indirectly by the first.
Patent GB-539580-A (GB)
Title: Improvements in or relating to electrical apparatus for use in applying tips to machine and other tools
IPC: B23K31/02
Filed: 1940-02-13
Abstract: 539,580. Brazing tips to tools. COHEN SONS & CO., Ltd., G., and FOX, G. H. Feb. 13, 1940, No. 2740. [Classes 83 (ii) and 83 (iv)] In an electric apparatus for use in applying tips such as of tungsten carbide, high speed steel &c. to machine or other tools, the tool is gripped in a holder connected to one terminal of an electric circuit and the nose of the tool is engaged by a second contact connected to the other terminal of the circuit so as to provide a high resistance in order to localize the heating of the tool to the nose, and brazing material is then applied and the tip placed in position and brazed thereon. The tool is gripped by an adjustable renewable insulated clamping jaw 6 in a holder 2 with its end projecting therefrom, the holder being connected to the terminal of the secondary 14 of a transformer. The nose of the tool is engaged by one of a number of contacts 17 of different shapes or sizes carried by a turret 8 on a screwadjusted slide 9 so that a contact complementary to the nose of the tool may be applied. The slide is flexibly connected to the other terminal of the transformer. The holder 2 and part 24 of the table are cooled by water or other fluid passing through pipes 22, 23, 25. The main welding switch 18 may be closed by a treadle 20 which operates a switch in a relay circuit and the switch 18 may be automatically opened. The holder 2 may be rotatable or adjustable to enable the tool to be set at any angle in which case the head may or may not be rotatable.
Patent GB-388553-A (GB)
Title: Process for extracting water of crystallisation or hydration from salts
IPC: F26B5/04
Filed: 1932-01-29
Abstract: Salts such as magnesium sulphate have their water of crystallization extracted, without melting them, by heating in vacuo, using a counterflow of superheated exhaust steam as the drying agent.  Steam plate or tubular vacuum drying apparatus may be used.  The vacuum may be increased as dehydration progresses, and in this case, if desired, saturated steam may be used as drying agent at a uniform drying temperature.  Superheated live steam may be used to complete dehydration and be, if desired, passed into direct contact with the salt.
Patent GB-162750-A (GB)
Title: Improvements in or relating to waterwheels, for tidal rivers & sea
IPC: F03B17/06
Filed: 1920-01-30
Abstract: 162,750. Bowden, A. F. Jan. 30, 1920. Current motors; driving and transmission mechanism.-A water-wheel to be driven by tidal currents is mounted so as to rise and fall with the tide, and is provided with means for converting its alternating rotary motion into uni-directional motion. A water-wheel of the undershot type comprises a water-tight drum a fitted with radial vanes b; the wheel is mounted on sway-beams d which are loaded at the other end so that the wheel rises and falls with the tidal stream flowing through the race f. Motion is conveyed from the wheel by a chain k to a sprocket-wheel h having the same axis as the sway-beams d. A second motion shaft m at right-angles to the first is driven in a constant direction through free-wheel couplings, the members r of which are fast or splined on the shaft m, and the coacting members p are secured to bevel-wheels n rotating freely on the shaft and driven by a bevel-wheel o on the sprocket-wheel h. A fly-wheel may be interposed between the second motion shaft and any machinery driven thereby, and may be geared up to rotate at a greater speed.
Patent GB-400815-A (GB)
Title: Improvements in or relating to a process for the production of bathing caps or the like from assembled rubber sheets and having ornamentation or protuberances produced out of the integral material
IPC: B29C37/00
Filed: 1933-01-30
Abstract: Bathing caps and the like are made by building up the articles from smooth rubber sheets, drawing over a core the surface of which is provided with a pattern, vulcanizing without the use of a rigid outer mould, and turning the vulcanized article inside out. During vulcanization the article may be embedded, e.g. in soapstone, or immersed in water.  The article may be pressed on the core which may be warmed, before vulcanizing, to assist in the formation of the design.  Specification 395,156 is referred to.
Patent GB-1243737-A (GB)
Title: Moulding process
Inventor: PORTINGELL GRAHAM CALLEND
IPC: B29C43/02
Filed: 1969-01-20
Abstract: 1,243,737. Moulding gramophone records. BP CHEMICALS Ltd. 17 March, 1970 [20 Jan., 1969], No. 3073/69. Heading B5A. A preform for use in the compression moulding of gramophone records is made by extruding a predetermined quantity of a thermoplastic material into a cup-shaped mould, then moving the mould and extruder relative to one another so that the nozzle of the extruder contacts the back of the mould to form a central hole in the preform.