baber/WOPTO huggingface dataset:
Patent GB-394475-A (GB)
Title: Separation of amines
Filed: 1932-05-17
Abstract: Mixtures of methyl amines are separated by first distilling off trimethylamine as a constant boiling mixture with ammonia, the requisite amount of ammonia being added if not already present, or alternatively by adjusting the amounts of mono- and trimethylamine so that they will come off as a constant boiling mixture, and distilling.  After the removal of the trimethylamine, the mixture of mono- and dimethylamine remaining can be separated by fractional distillation.  The process is applicable to mixtures of the methylamines containing other less volatile substances, for example, water, methanol, sodium formate or inorganic salts.  The distillation may be carried out in a suitable fractionating column at atmospheric or higher pressures, preferably under sufficient pressure to enable the amines to be condensed with water at atmospheric temperature. The process may be carried out as a continuous distillation, the ammonia - trimethylamine mixture being taken off at the top of the column, the monomethylamine lower down, and the dimethylamine near the bottom of the column. Examples are given.  The Specification as open to inspection under Sect. 91 comprises also the separation of methylamines by distilling in a fractionating column 20 to 40 feet high and at a reflux ratio of substantially 5 to 15.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1076074-A (GB)
Title: Improvements in or relating to pressure ratio control devices
Inventor: FURLONG OWEN DESMOND
IPC: F04D27/02
Filed: 1966-03-28
Abstract: 1,076,074. Fluid-pressure. servomotor control Systems; pure fluid amplifiers. WESTLAND AIRCRAFT Ltd. March 28, 1966 [April 2, 1965], No. 14077/65. Headings G3H and G3P. [Also in Division F1] The ratio of two pressures is controlled by causing samples of the two pressures to create or control a vortex flow in independent chambers. The flow or pressure is sensed within each . chamber and the resulting signals used to adjust the pressure ratio. In Fig. 1, the air-flow in the inlet 1 and outlet 5 of an air turbine 4 is measured by Pitot tubes 8, 16 to cause a vortex flow in chambers 9, 17 having ambient outlets 10, 18. The pressures in the chambers 9, 17 are sensed at 11, 19 and are used as control signals 14, 22 of a pure fluid amplifier 15. The outlets 24, 50 of the amplifier 15 are connected to control nozzles 32, 51 of an amplifier 31 having an ambient outlet 34 and an outlet 38 leading to a bellows 39 which controls a pad valve 42. The valve 42 controls the bleed from a line 44 connected to an actuator 46 of a valve 3 in the turbine inlet 1. A feedback 52 from outlet 38 is connected to nozzle 54 and through a capacitor 55 to nozzle 56 of amplifier 15. The valve 3 is thus adjusted to maintain a constant pressure ratio across the turbine. In a modification the pressures from the vortex chambers act on leak valves controlling the signal pressures to amplifier 15 and a third amplifier has an output which acts directly on the valve actuator. In a further modification, the Pitot tubes are connected to pad valves controlling the leak of pressure supplied to the vortex chambers. In Fig. 4, the system controls a relief valve of a radial flow compressor to prevent surge. A Pitot tube 84 supplies the vortex chamber 85 while a static tube pipe 94 supplies the vortex chamber 95. The vortex pressure sensor 87, 97 form the control signals to a pure fluid amplifier 89. When the pressure difference is such that the amplifier output is through outlet 100, the relief valve 183 is closed. If in the event of surge, the output is through the outlet 99, the valve 183 is opened. In a modification, the pressures are sensed in the outlet 82, one sensor being at the throat of a Venturi. In an aircraft cabin condition system, Fig. 6 (not shown) the rate of flow to the input vent (112) is controlled by a valve (147) in response to the pressure ratio across a heat exchange (119) by Pitot tubes (120), (121) amplifier (134) and pad valve (140) controlling actuator (145). Ram pressure is also measured by Pitot tube (148) and compared with the flow at (121) whereby amplifiers (155), (164) actuate a pad valve 174 of a actuator (117) so that the system is fed from ram intake (114) instead of the engine (91) when the ram pressure is sufficient.
Patent GB-251123-A (GB)
Title: Improvements appertaining to drawing-rollers for spinning, doubling, twisting and like machines
IPC: D01H5/74
Filed: 1925-05-29
Abstract: 251,123. Dugdale, J. May 29, 1925. Rollers. - In a roller for spinning, doubling, twisting, and like machines, of the type having a covering of leather supported by a cushion of felt or like resilient material, the felt strip d is secured in a groove c, being cemented or glued to the bottom of the groove and to its two edges c', c<2>, while the leather cover g is cemented or glued to the outer surface f of the felt d.
Patent GB-217895-A (GB)
Title: Improvements in apparatus for transmission of heat from one medium to another
IPC: F28D19/04
Filed: 1924-06-11
Abstract: 217,895. Lynger, E. S. June 19, 1923, [Convention date]. Cooling and heating parts.-The rotor of a blower is adapted alternately to absorb heat from one medium and give it out to another medium both passing through the same blower. Discs 12, separated by wire or like strips 13 bent to form vanes, are mounted to rotate on a spindle 2. The eye of the blower is divided by a. stationary plate 6 into two compartments 7, 8, to each of which one of the media, such as air to be heated and hot gases, is supplied. The casing 9 has two corresponding outlets 10, 11. When the rotor 1 is turned as by a pulley on the shaft 2, the discs are heated by the hot gases on one side of the casing and give out heat to the air &c. passing through them on the other.
Patent GB-315048-A (GB)
Title: An improved lug or attachment for supporting tubes, bars or the like
IPC: F16L3/12
Filed: 1928-05-15
Abstract: 315,048. Murdoch, H. B. May 15, 1928. Brackets.-A bracket, which may be slipped onto a pipe &c. B for supporting same, is formed from a blank A, preferably cut from a metal strip, having one end a<1> of V-shape and the other end with a V-slit to provide prongs a<2>, a<3> as shown. The prongs are bent in reverse directions to conform to the crosssection of the pipe, while the end a<1> is bent to the desired angle for attachment of the bracket to a support.
Patent GB-1349205-A (GB)
Title: Mat of fibrous material and preparation and uses thereof
IPC: B01J37/00
Filed: 1971-05-12
Abstract: 1349205 Filter and catalyst support UNIVERSAL PRODUCTS CO 12 May 1971 [13 May 1970] 14382/71 Headings BID and B1E [Also in Divisions C1 and F2] An annular filter mat or catalyst support is formed by helically winding a plurality of layers 30 of a flexible, porous, refractory, inorganic oxide fibrous material 2 onto a tubular form or mandrel 20. The mat may be removed from the form and cut to produce a flat annular mat or it may be used mounted on the form, which in such a case has perforations 25. In Fig. 2 (not shown) the annular mat is mounted between a pair of tubular screens within a housing with the interior of the mat and the exterior of the mat separately in communication with the housing outlet and inlet. Specified inorganic oxide materials are alumina, chromia, zirconia, silica, thoria, alumina-chromia and alumina-zirconia. When used as a catalyst support the mat may be impregnated with a catalyst material, e.g. Mo, W, Cr, Pd, Cu, Ni, Pt, Fe, Co, Ru, Rh, Os or Ir. The fibrous material is formed by drawing or spinning a fibre from a mixture of a refractory inorganic oxide sol and a fibre-forming organic polymer and then, subsequently, calcining to burn off the organic polymer. A setting agent may be utilized in conjunction with the fibre to form a coherent mat after winding.
Patent GB-709817-A (GB)
Title: Improvements in braces for personal wear
IPC: A41F3/00
Filed: 1951-06-18
Abstract: 709,817. Braces for personal wear. LEWIS, J. W. R., and WALL, Ltd., H. May 19, 1952 [June 18, 1951]. No. 14414/51. Class 141 A brace-end comprises a length of flexible materials 6 having button-engaging eyes 7 at its ends, a rigid stiffening member e.g. metal sleeve 8 engaging the centre portion to maintain it rectilinear in use, and a strip 10 of non-extensible material extending parallel and closely adjacent to the stiffened central portion to form a loop. The ends of the strip 10 may extend within. the metal sleeve 8 and an extensible bridging strip 9 may be provided. The shoulder straps 1. 2 may terminate in looped ends 4 extending through the loop of the brace end formed by the stiffened central portion and strip 10. The straps 1, 2 are preferably made of extensible material joined by cover strips 3 to a looped length 4<1> of extensible material through which a further brace-end extends.
Patent GB-909591-A (GB)
Title: Improvements in or relating to banding machines for packages
IPC: B65B13/18
Filed: 1960-04-25
Abstract: 909,591. Banding machines. TIMMERBEIL, P., TIMMERBEIL, H., and TIMMERBEIL, E. April 25, 1960 [April 25, 1959], No. 14469/60. Class 94(1). A package banding machine having guide means 22, 24, for directing a band 23 around a package, has a vertically adjustable boom 14 that carries mechanical driven means 15 for feeding, tensioning, and joining the band to itself. To initially maintain the band 23 within the guide means 22, 24 each is formed over part of its length into a substantially enclosed passage 32, Figs. 5 and 6. In Fig. 5 the sides and front of the passage 32 are defined by a plurality of spring biased L-shaped members 34 that can move apart when the band is tensioned around a package to permit the band to escape from the passage. Alternatively, Fig. 6, an L-shaped resilient strip 39 is secured to each side of a channel member 38 to form a substantially enclosed passage 32. Adjusting the size of the machine. To enable packages of various heights to be handled, the boom 14 has a downwardly-curved band guiding member 30 that extends into the passage 32 of the vertical arm of the guide means 22, the spring biased members 34 or the resilient sides 39 of the guide means 22 being spaced apart where the guiding member 30 extends between them as the boom 14 is moved up and down. Feeding, tensioning and securing band. The band 23 is fed around the guide means 30, 22, 24 by a knurled pinion driven by a motor 44, the band being pressed against the knurled pinion by an eccentrically mounted co-acting wheel that can be pressed by a lever 46 against the pinion. The free end of the band 23 eventual - ly enters a clamping device at 15 whereupon the lever 46 is released. To tension the band a second knurled pinion is pressed on to the band by means of a lever 50 and driven by a second motor through a slipping clutch and a telescopic splined shaft 51 permitting the device 15 to slide relatively to the boom 14. After the band has been tensioned a punch forms Z-shaped slits in the superimposed ends to join them together and a cutter severs the band from its supply.
Patent GB-580664-A (GB)
Title: Improvements in travelling swing tray ovens
IPC: A21B1/46
Filed: 1944-07-28
Abstract: 580,664. Bakers' ovens. MELVIN & GILLESPIE, Ltd., and HALL, W. A. July 28, 1944, No. 14485. [Class 51 (ii)] [Also in Group XXX] In a travelling swing tray oven means is provided for positioning properly on their respective trays any pans that may been misplaced. A wheel 7 keyed to the main driving shaft 6 outside the oven carries rollers 8 which engage the lower end of a member 9 freely mounted on a shaft 10. A forked arm 11 is keyed to this shaft and is connected to the upper part 9<1> of the member 9 by a limiting bolt and nut device 17 and a compression spring 16. Arms 12 connected by a crossbar 13 are keyed to the shaft 10 within the oven. Similar arms 12<1> carrying a bar 13<1> are keyed to a shaft 10<1> which is geared to the shaft 10 by toothed sectors 14. Since the spacing of the rollers corresponds with the distance apart of the trays, the arms 12, 12<1> approach each other during the passage of each tray and the crossbars 13, 13<1> restore any misplaced pan 4<1> to its correct position. If a pan does not yield to the pressure of the crossbars, the rotation of the shafts 10, 10<1> will be stopped, but since the member 9 will continue to turn on this shaft by the action of a roller 8, it will move towards the arm 11 until it actuates a switch 18 to break the circuit of the driving motor. As soon as the pan is positioned correctly by hand, the spring 16 separates the parts 9<1>, 11 and the motor circuit is completed.
Patent GB-1472012-A (GB)
Title: Cprocess for the preparation of 2-4-isobutyl-phenyl-propio hydroxamic acid
IPC: C07C239/00
Filed: 1975-04-09
Abstract: 1472012 2-(4-lso-butylphenyl)propiohydroxamic acid SOC ITALO-BRITANNICA L MANETTI-H ROBERTS & C 9 April 1975 [6 Dec 1974] 14493/75 Addition to 1447658 Heading C2C 2-(4-Isobutylphenyl)propiohydroxamic acid is prepared by reacting a methanolic solution of 2 - (4 - isobtuylphenyl)propionitrile with gaseous HCl under cooling, diluting the reaction product with Et 2 O, reacting the precipitate formed with methanolic NH 2 OH.HCl and aqueous NaOH, diluting the reaction product with water and precipitating the desired compound with CO 2 .
Patent GB-215211-A (GB)
Title: Screw propellers
IPC: B63H1/12
Filed: 1923-06-02
Abstract: 215,211. Beck, T., (Thompson, G. H.). June 2, 1923. Screw propellers.- The screw propeller comprises bifurcated blades A, B, C, each having a root portion 11 and flukes 12, 13. the parts being of helical form. The flukes are of double planoconvex section, the leading fluke 12 being convex on its driving face and the following fluke on its rear face. The edges 14 are contiguous and of S-shape in end view, and the flukes 12, 13 are inclined forwardly and rearwardly respectively from the root portion to the tip. Specifications 15814/95 and 18398/08 are referred to.
Patent GB-1423105-A (GB)
Title: Briquetting of reactive coal calcinate with high temperature coke oven pitch
IPC: C10L5/16
Filed: 1974-04-02
Abstract: 1423105 Briquetting coal calcinate FMC CORP 2 April 1974 [9 April 1973] 14574/74 Heading C5E Briquettes are produced from mixtures of bituminous binder and reactive coal calcinates by heating (e.g. in a fluidized bed) ground coal to at least 250 F. and below tar producing temperatures in the presence of oxygen, shockheating the resulting heated coal particles to tar producing temperature in a fluidized bed carbonizer or series of them, to remove substantially all of the condensitic vapour overhead, further heating (e.g. in a fluidized bed) the particles to higher temperatures to remove non-condensible volatiles to produce a reactive coal calcinate that contains at least 1% by wt. of hydrogen, cooling the calcinate in an inert atmosphere to a temperature at which it can be handled in air, applying water to the calcinate whereby it absorbs at least 3% of water based on the weight of calcinate, then mixing the wetted calcinate and coke oven pitch into a compressible blend, briquetting the blend, curing the green briquettes in an O 2  containing atmosphere to cause a reaction to occur between the calcinate and the pitch. The starting coal may be any rank from lignite to anthracite. The cured briquettes may be subsequently coked to briquettes with a volatile content of under 3% by weight.
Patent GB-109857-A (GB)
Title: An Electromagnetic Separator.
Inventor: HALLIMOND ARTHUR FRANCIS
IPC: B03C1/14
Filed: 1916-10-14
Abstract: 109,857. Hallimond, A. F., and Fletcher, W. G. Oct. 14, 1916. Magnetic separators.-The material to be treated is carried on a continuously moving disk, drum, or endless-belt conveyer beneath fixed magnet poles, the conveyer being formed with gaps at intervals and the magnet poles being intermittently de-energized or their fields varied or diverted when a gap in the conveyer is beneath a pole, so that the attracted material is discharged from the pole and falls through the gap in the conveyer into a receptacle beneath. In a machine having a horizontal disk conveyer B, Fig. 2, formed with gaps E, the material is supplied to the disk from a hopper either continuously, in which case that passing through the gaps is collected in a vessel F, or intermittently, the supply being automatically stopped during the passage of a gap beneath the hopper. A magnet G is de-energized automatically by means of a commutator M to allow the attracted material to fall through the gaps E into a hopper H, the unattracted material being swept by a brush J into a hopper K. In a machine having a drum conveyer B, Fig. 5, the material released from the magnet G falls into pockets U by which it is carried round to a receptacle Q, while unattracted material falls off the drum into a receptacle K. The machine may be immersed in water up to the level XY. A machine with an endless-belt conveyer may be so arranged that gaps in the upper and lower flights of the conveyer pass under a pole simultaneously. The magnets, instead of being de-energized, may have their fields varied or diverted by iron masses in suitable positions. When magnets having two pole-pieces are used, the discharge of the material therefrom may be assisted by an arm moving between them, operated by magnetic or mechanical means.
Patent GB-861653-A (GB)
Title: Improvements in or relating to electric conducting liquid switches
Inventor: ENGEL ERNEST EMIL OTTO
IPC: H01H29/10
Filed: 1958-05-07
Abstract: 861,653. Mercury switches. ENGEL & GIBBS Ltd. April 3, 1959 [May 7, 1958], No. 14654/58. Class 38 (5). An evacuated or inert gas-filled glass envelope containing mercury or other conductive liquid comprises a -main chamber 13 having electrodes 11 and 12 sealed in extensions 17 and 14 such that both retain a certain quantity of mercury throughout operation of the switch. When the envelope is tilted as in Fig. 2 the mercury flows into extension 14 to complete the circuit between electrodes 11 and 12 but a small accurately-calibrated hole 22 in a thin plate 21 allows the mercury to leave the chamber 13 such that after a predetermined delay (which may be of the order of one second to three minutes) the circuit between the electrodes 11 and 12 is broken. The plate 21 is less than 0.001 inch thick and is preferably of platinum 0.0005 inch thick.
Patent GB-898735-A (GB)
Title: Improvements in tumbling and tumbling media
IPC: B24B31/14
Filed: 1959-04-29
Abstract: A tumbling process utilizes as tumbling media bodies made from sintered powdered metal.  The bodies may have serrated surfaces.  The metal may be steel, copper, brass, bronze, zinc, lead, cobalt, titanium, tungsten, iron, gold, silver, platinum, aluminium, tin, nickel, chromium or manganese, or an alloy of any of these or combinations of these.  The metal powder is compressed to the desired configuration in a die and then sintered.  The die may be shaped to give a roughened surface.  The die may be that used to form the work-pieces or an identical one.  The sintered product can be hardened by heat treatment, carburizing, nitriding, carbo-nitriding, aluminizing, &c.  The pores of the sintered body may be charged with a compound. For smoothing and polishing the compound may be wax or rouge; for deburring or abrading the compound may be tungsten carbide powder or diamond dust; for coating the workpieces with a thin film of lubricant or a rust resistant the compound may be molybdenum sulphide or graphite.  The compound may be mixed with the metal powder before compression and sintering.  When expensive metals are employed a coating of powdered metal is applied to a core of less expensive material.
Patent GB-562246-A (GB)
Title: Improvements in or relating to cast in situ or precast work in concrete or similar material requiring reinforcement
IPC: E04C5/065
Filed: 1942-10-20
Abstract: 562,246. Beams; floors; walls. FROMSON, B. W. Oct. 20, 1942, No. 14657. [Class 20 (iv)] A beam is formed of an open latticework girder - like assembly 21 and a layer of concrete 20 supported on plates 23 secured to the webs of the lattice work. The plates may project beyond the ends of the lattice work and projecting parts of the webs are embedded in the concrete. A floor or wall is formed of a spaced beam and intermediate plates supporting a continuous layer of concrete.
Patent GB-1187412-A (GB)
Title: Improvements in or relating to Chart Recorders
IPC: G01D15/24
Filed: 1967-03-31
Abstract: 1,187,412. Recording apparatus. DOHRMANN INSTRUMENTS CO. March 31, 1967 [May 4, 1966], No. 14748/67. Heading G1J. A strip chart recorder of the type described in Specification 1,187,413 comprises a servomotor 66 which drives a pen 51 along the Y-axis of the chart, a stepper motor 42 for causing relative movement between the pen and the chart along the X-axis, a tachometer for sensing the movement of the pen along the Y-axis and generating an inhibit signal when the pen is moving, and an oscillator 76 for producing pulses, the inhibit signal being fed to the oscillator which is connected to the stepper motor so that the inhibit signal prevents the passage of the pulses to the stepper motor. The pen 57 is driven along the Y-axis by the servomotor 66 until the output of a feedback potentiometer 68 equals the input signal supplied to electronics 72. At this null point the tachometer no longer supplies an inhibit signal to the oscillator 76 which therefore supplies pulses via a switch 78 and a driver 73 to drive the stepping motor. The stepping motor 42 thus moves the chart along the X-axis. Alternatively the chart may be advanced by an input applied to an amplifier 79 which is connectable to the driver 73 via the switch 78.
Patent GB-514861-A (GB)
Title: Textile treatment agents
IPC: D06P1/66
Filed: 1938-05-17
Abstract: 514,861. Textile assistants ; dyeing. REYNOLDS, R. J. W., ROSE, J. D., WALKER, E. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 17, 1938, No. 14756. [Classes 2 (iii) and 15 (ii)] Diquaternary ammonium compounds of the general formula where Z and Z1 each represent a tertiary amine, X and Y are chlorine or bromine atoms, and A is a divalent aliphatic hydrocarbon radicle, are made by reacting ethers of the general formula with two molecular proportions of a tertiary amine or amines. As ethers of the general formula, 2-chlorethyl chlormethylether, 2- bromoethyl chloromethyl ether, and 3-chloropropyl chlormethyl ether are specified. As tertiary amines may be used trimethylamine, triethylamine, dimethylaniline, 'alkylpiperidines, N-benzylpiperidine, pyridine, picoline and quinoline. Mixtures of amines may be used, and the reaction may be carried out in two stages, a different amine being used in each stage. The products may be used for increasing the fastness of dyeings of direct dyestuffs on cellulosic materials, or for conferring upon such materials an affinity for acid dyes. In examples, (1) 2-chloroethyl chloromethyl ether is reacted with pyridine (2 mols.) ; (2) 3-chloropropyl chloromethyl ether is reacted with pyridine (2 mols.), (3) 2- chloroethyl chloropropyl ether is reacted with triethylamine (1 mol.) and the product is reacted with pyridine (1 mol.); (4) 3-chloropropyl chlormethyl ether is reacted with alpha-picoline (2 mols.), (5) 2-chloroethyl chlormethyl ether is reacted with N-benzylpyridine (1 mol.) and pyridine (1 mol.), (6) 2-bromoethyl chloromethyl ether is reacted with pyridine (2 mols.), (7) bleached cotton limbric dyed with Chlorazol Fast Red K is impregnated with an aqueous solution containing the product of example 1, squeezed, dried and heated to 150‹ C. ; the fastness of the dyeing to washing is improved, and (8) spun viscose material is padded with an aqueous solution of the product of example 1, squeezed, dried and heated to 140‹ ; the material can then be dyed with acid dyestuffs in the manner normally used for dyeing wool. Specification 394,196 is referred to. 3-Chloropropyl chloromethyl ether is made 'by treating trimethylene chlorohydrin with paraformaldehyde and hydrochloric acid in an aqueous medium. 2-Bromoethyl chloromethyl ether is made by reacting 2-bromoethanol with formaldehyde and hydrochloric acid.