baber/WOPTO huggingface dataset:
Patent GB-1428828-A (GB)
Title: Apparatus for example for burning the powdered materials for making cement
IPC: C04B7/43
Filed: 1973-05-18
Abstract: 1428828 Rotary kilns ISHIKAWAJIMAHARIMA JUKOGYO KK 18 May 1973 [20 May 1972 4 Oct 1972 8 Jan 1973] 23799/73 Heading F4B Apparatus for burning powdered materials, e.g. for making cement, comprises a rotary kiln 16, Fig. 4, a furnace 1 for calcining the powdered materials prior to their being fed to the kiln, and a duct 15, for providing hot combustion air to the furnace 1 fed from the exhaust gas duct of the kiln and a second duct 6 supplying combustion air to the furnace, the exhaust gas duct 15 opening into the duct 6 through a throat 25, Fig. 3, controlling the rate of flow of exhaust gas. Duct 6 has a damper 27 controlling the amount of air. The air in duct 6 normally comes from a clinker cooler 18, but an ambient air inlet 29 is also provided normally closed by a damper 28. The calcining furnace Fig. 1 is fed with combustion air through duct 6 and has three separately adjustable burners 2, 3, 4 in the top. Raw meal is fed into the furnace at 5 and the shape of the furnace is such that the meal follows a swirling path in the flame of the burners before leaving in a calcined state through the outlet 7. It then passes through a separator 11 to the inlet end of the kiln. Raw meal passes to the furnace through suspension preheaters being fed at 19 into duct 12 and carried to cyclone 8 which feeds it into duct 13, thence to cyclone 9, duet 14, and cyclone 10 to the furnace 1. The hot gas for the preheaters comes from the exhaust duct of furnace 1, the powdered material being separated in cyclone 11. The kiln 16 is heated by a burner in the lower end hood 17 and the fully burnt cement is cooled at 18 by air which is afterwards passed by duct 6 to the furnace 1 as described. There may by a dust separator in this duct. A fan 23 reduces the pressure in the preheater so that air and exhaust gases flow into the furnace 1. During start-up, and in the event of break-down of fan 23, overheating is prevented by opening the damper 29 to admit cold air to the furnace 1, the hot air from the cooler 18 being taken away by a fan 31. A damper 30 in outlet duct 22 is closed to stop the gases flowing through the pre-heater.
Patent GB-428011-A (GB)
Title: Improvements in thermally controlled switches for relays, circuit-breakers and the like
IPC: H01H71/20
Filed: 1934-08-20
Abstract: 428,011. Thermal switches. BROOKHIRST SWITCHGEAR, Ltd., Northgate Works, Chester, and DAVIES, J. S., 40, West Grove, Rhostyllen, near Wrexham. Aug. 20, 1934, No. 23926. [Class 38 (v)] A thermal switch comprises a switch member G normally maintained in an open or closed position by a spring or gravity, an actuating lever E normally held in its retracted position against the action of a spring S by a metallic retaining member C which is attached to a fixed metallic part B by solder or similar alloy, and a heating coil H, carrying the whole or part of the current to be controlled, located near the soldered union and adapted, when the current exceeds a predetermined limit, to melt the solder and free the lever E to actuate the switch member G. In the arrangement shown, the switch is normally closed and is opened, on release of the lever E, by the engagement of a projection e<6> on the lever with the switch member G. The member C carries, on a shank c<1>, a ratchet wheel D with which a pawl F on the lever E engages, to prevent rotation of the lever until the ratchet wheel and member C are released by the melting of the solder. The lever E is mounted, coaxially with the ratchet wheel, on a collar c<3> fixed to the shank c<1>. An adjustable screen J is interposed between the heating coil and the soldered union of the parts B, C, for the purpose of regulating the rate at which heat is transmitted, and thereby adjusting the value of the current at which the switch operates. The lever E is provided with a resetting handle e5. The switch member G may be directly included in the circuit to be controlled, or it may be included in the hold-on circuit of a circuitbreaker. In cases where the switch is normally open and is closed on melting of the solder, the switch may control a trip circuit for a circuit-breaker or operate a signal.
Patent GB-1237884-A (GB)
Title: Liquid phase oxidation of olefins to olefin oxides, glycols and glycol esters
Inventor: FLETCHER JOHN VINCENT
IPC: C07D301/14
Filed: 1968-05-20
Abstract: 1,237,884. Oxidation of olefins. PETROCARBON DEVELOPMENTS Ltd. 19 May, 1969 [20 May, 1968], No. 23937/68. Heading C2C. Propylene oxide is prepared by oxidizing isopropyl alcohol in the liquid phase with oxygen at an elevated temperature and pressure sufficient to maintain the isopropyl alcohol in the liquid phase to produce a product comprising unreacted alcohol, hydrogen peroxide and acetone, removing at least the major part of the acetone from the hydrogen peroxide, replacing the isopropyl alcohol with an ester solvent of formula R-COOR<SP>1</SP>, in which R and R<SP>1</SP> are C 1-5  alkyl groups optionally substituted with at least one electrophilic group, reacting the resulting hydrogen peroxide solution with at least one acid of formula R 1 COOH in which R 1  is hydrogen, phenyl or a C 1 -C 5  alkyl group optionally substituted by at least one electrophilic group, thus producing a percarboxylic acid solution, removing any water present by azeotropic distillation, and reacting the resulting anhdyrous percarboxylic acid solution with propylene to give propylene oxide, with the proviso that when the ester solvent forms an azeotrope with the isopropyl alcohol that azeotrope must have a lower boiling point than the ester solvent and when the ester solvent does not form an azeotrope with isopropyl alcohol the ester solvent must have a higher boiling point than isopropyl alcohol. The process is carried out in the absence of heavy metal ions. The propylene may be used as a mixture with one or more olefins and may be mixed with an inert material. The oxygen may be used as air. The conditions of reaction between the percarboxylic acid solution and propylene may be adjusted so that propylene glycol and a propylene glycol ester may be formed in addition to the propylene oxide.
Patent GB-889338-A (GB)
Title: Improvements in or relating to cyclic organic phosphorus compounds
IPC: D06M13/51
Filed: 1959-07-13
Abstract: Compounds having the formula: <FORM:0889338/III/1> <FORM:0889338/III/2> wherein R is hydroxymethyl or alkyl and X is oxygen, sulphur or selenium (see Group IV(b)) may be used as antioxidants for fats and oils.ALSO:Compounds having the formula:-<FORM:0889338/IV (a)/1> <FORM:0889338/IV (a)/2> wherein R is hydroxymethyl or alkyl and X is oxygen, sulphur, or selenium (see Group IV(b)) may be used as heat stabilizers for vinyl halide resins, e.g. vinyl chloride resins, and as antioxidants for natural and synthetic rubbers.ALSO:The invention comprises compounds having the formula <FORM:0889338/IV (b)/1> <FORM:0889338/IV (b)/2> wherein R is hydroxymethyl or alkyl and X is oxygen, sulphur or selenium.  The phosphite compounds may be obtained by transesterifying a triaryl phosphite or a trihaloaryl phosphite with pentaerythritol or a trimethylol alkane and at least one mol of the pentaerythyritol or trimethylol alkane should be used per mol of the aromatic phos-phite. The reaction is preferably carried out in the presence of an alkaline transesterification catalyst such as sodium-or potassium hydroxide or hydride sodium phenate, a sodium alcoholate-(e.g. ethylate) or a quaternary ammonium base, e.g. tetraethyl ammonium hydroxide.  The compounds of the second formula are obtained by reacting the phosphite with an oxidising agent when X is to be oxygen, with elemental sulphur when X is to be sulphur or with elemental selenium when X is to be selenium.  Specified oxidising agents are peroxides, e.g. hydrogen peroxide or barium-, benzoyl- or cumene hydroperoxide, and persulphates, e.g. sodium or potassium persulphate.  Examples are given for the production of compounds of the first formula in which R is CH3CH2-, CH3-, HOCH2-, CH3CH2CH2CH2-, hexyl-, decyl-, and hexadecyl-, respectively, and for the production of compounds of the second formula in which R is CH3CH2- and X is S and Se, respectively, R is CH3- or OHCH2- and X is S, R is hexyl and hexadecyl, respectively, and X is S or O, and R is CH3- or OHCH2-and X is O. The products are useful as heat stabilisers for vinyl halide resins (see Group IV (a)), as antioxidants for natural and synthetic rubbers and for fats and oils, and as flameproofing agents for cotton and other cellulosic textile materials.  Also the pentaerythritol phosphite, phosphate, thiophosphate and selenophosphate can be used to form end groups on isocyanate resins (polyurethanes). Trimethylolalkanes are obtained by reacting formaldehyde with a higher aliphatic aldehyde, e.g. propionaldehyde or stearaldehyde, under alkaline conditions.
Patent GB-1253784-A (GB)
Title: Heating systems
Inventor: CURTIS DANIEL LEE
IPC: C09K5/16
Filed: 1970-05-18
Abstract: 1,253,784. Undergarments. LITTON INDUSTRIES Inc. 18 May, 1970 [19 May, 1969], No. 24026/70. Heading A3V. [Also in Division F4] A heating garment worn by a diver or swimmer and utilizing an exothermic chemical reaction comprises a heating tube 30 located between inner and outer layers of nylon 50 and 52. A conventional wet suit 54 overlies the garment which is worn adjacent the skin 46. A perforated tube 34 is disposed coaxially within the heating tube 30. Phosphorus trichloride supplied to the perforated tube reacts with water flowing in the space between the tubes thereby producing heat. The arrangement is such as to provide uniform distribution of heat to the wearer.
Patent GB-742430-A (GB)
Title: Method and apparatus for treating fabric to minimize subsequent shrinkage thereof
IPC: F26B13/12
Filed: 1953-08-31
Abstract: 742,430. Feeding webs. SAMCOE HOLDING CORPORATION. Aug. 31, 1953 [Oct. 15, 1952], No. 24055/53. Class 100 (1). [Also in Group XIII] A continuous web of fabric is fed through a treating zone, e.g. in a drying or steaming apparatus, in a series of loops supported in containers in each of which the fabric is in a tensionfree condition and also subjected to a stressrelieving tumbling so that subsequent shrinkage of the fabric is minimized. The apparatus described comprises a housing 10, Fig. 2, divided longitudinally by a partition 11 having openings 12, 13 at the top and bottom for the circulation of drying air by a fan 14. A heater 13<SP>1</SP> may be installed in the lower opening. A series of wire mesh containers or boxes 20 of J-section are mounted in the left-hand side of the housing and receive the web as shown in Fig. 3. A draw-in roller feeds the web 29 to the first container 20 through the upper open end and it is drawn out by a feed roller 26 through the lower opening 22. The feed roller 26 transfers the web to the next container and so on. Guide rollers 52 are provided below each feed roller to ensure that the web separates from the feed roller and enters the container. Drying air passing through the mesh of the containers dries the fabric in the unstressed condition and reduces subsequent shrinkage due to residual stresses therein. Each container is supported on an arm 40 secured to an axle 41. Another arm 46 on each axle carries a roller 44 and a counterweight 49 adjustable along a threaded rod 48. The feed rollers 26 are driven by pulleys 42 which, in turn, are driven by frictional contact with a belt 43 moving in the direction of the arrow. Belt 43 also drives guide rollers 52. Where there is a heavy pressure against the belt exerted by the roller 44 the feed roller 26 is driven at the maximum speed. Where no pressure is exerted the feed roller is stationary. The speed of each feed roller is thereby controlled by the weight of fabric in the previous container which weight is maintained substantially constant by the control mechanism. The counterweight may be adjusted to vary the amount of fabric supported in the corresponding container. Specification 742,431 is referred to.
Patent GB-932517-A (GB)
Title: Variable speed drive
IPC: F16H9/12
Filed: 1961-07-04
Abstract: 932,517. Expanding-wheel gear. FALK CORPORATION. July 4, 1961 [Oct. 25, 1960], No. 24096/61. Class 80 (2). An expanding-wheel gear unit comprises pulleys 14, 15 mounted on reduction gear and motor units 10, 11, respectively, the latter having a pivotal connection 20 with a channel member 12 bolted to the flange 40 of the reduction gear unit. The assembly is carried by a bracket 95 adjustable in relation to a block 98 about a vertical pivot pin 99, while the block is connected to and is adjustable relative to a fixed bracket 101 about a horizontal bolt 102. The motor unit 11 is angularly adjustable in relation to the reduction gear 10 by shifting the points of connection with the gear unit flange 10, while in addition, the spacing between the units is independently adjustable about the pivot 20, to vary the transmission ratio, by a screw 27 operated by a hand wheel 28 and passing through a block 35 carried by an arm 18 bolted to the motor unit.
Patent GB-1419647-A (GB)
Title: Impregnation method and apparatus
IPC: B05C11/10
Filed: 1973-05-21
Abstract: 1419647 Web treatment apparatus PROCTER & GAMBLE CO 21 May 1973 [22 May 1972] 24102/73 Heading D1L In a method for impregnating an absorbent material with a liquid impregnant a web S is fed from a feed roll 10 past a coating head 14 and the coated web is then fed under tension applied by rolls 18 and 20 round roller 19 with its coated surface in contact with the member, the coating liquid being pressed into the web S to impregnate it as a result of the applied tension, the roller rotating at the same surface speed as the web. Shift roll 13 may be provided to move the web out of contact with the coating head 14 when no impregnation of the web is desired. The liquid impregnant is preferably metered to the head 14 by pump 16 and emerges from the head from a slit formed in its circumference [Fig. 2, not shown].
Patent GB-481027-A (GB)
Title: Improvements in fishing tackle
IPC: A01K91/18
Filed: 1936-09-03
Abstract: 481,027. Fishing - tackle. FUJII, Y. Sept. 3, 1936, No. 24140. [Class 48] Fishing-tackle consists of a weighted bar 1 with tow-lines 4 connected to its ends, short weighted lines 10 with hooks 12 being detachably secured thereto. The lines 10 carry sinkers 11 and are attached by snap-hooks 9 to rings 8 on the bar. The lines 4 and weights 7 are attached to end rings 3. The bar 1 may be in sections connected by hinge joints or by spigot-and-socket joints 2 which may be plain or screw-threaded. The tackle is drawn through the water by line 5 and reel 6 attached to a boat, and the unbaited hooks travel over the sea-bottom.
Patent GB-1033823-A (GB)
Title: Improved transporter means
IPC: B61B12/02
Filed: 1961-07-04
Abstract: 1,033,823. Railway systems. JOSEPH COOK SONS & CO. (1930) Ltd., and W. A HUNT. July 3, 1962 [July 4, 1961; July 31, 1961], Nos. 24174/61 and 27723/61. Heading B7L.  A transporter comprises a number of cylindrical elements 1, 2 supported in brackets 11 and driven by synchronous motors 17 via pulleys 16, idlers \ 18, and a driving belt 15. Riders 33 rest on these driving elements by rollers 40 which can be rotated about axes 36 radial to the driving elements to propel the rider in either direction. Rotation of the roller forks 38 is effected by integral arms 43 interconnected by bell-cranks 40 which are rotated by arms 45 under the action of flexible cables 47, 48. The inner cables 48 are connected to the ends of a centrally pivoted lever 55 moved by the hand-lever 57. The depending arm 51 is pivoted at 49, 50 to the rider 33 and may carry a seat or load carrying receptacle at its lower end. The roller forks 38 may have integral arcuate racks engaging a toothed idler to ensure simultaneous rotation and the rollers 40 resting directly on the driving elements 1, 2 they may be interconnected by a multi-V continuous external surface belt which straddles the elements 1 and 2. For steep gradients the pressure of the rollers 40 on the driving elements may be increased by a radially aligned spring-urged roller below the driving elements and which is rotated in unison with the other roller forks to effect driving. A number of load-carrying receptacles may be supported on leading and trailing riders interconnected by links so that when the leading receptacle moves away the rollers on the following receptacle rider are angled to effect drive to this receptacle. A man-carrying rider at the head of such a train can thereby control it by interconnecting all the riders. The external surfaces of the driving elements 1, 2 may have helical grooves or ridges of constant or varying pitch and the rollers resting on the lands between the grooves, the angling of the roller forks being in this case effected by a gravity-operated lever having a projection or roller engaging the helix. When driving elements are of these types they are driven from electric motors by belts having oblique grooves or ridges corresponding to the helix on the driving elements so that by working over a parallel reduced portion of a driving element they form a continuous helix.
Patent GB-839172-A (GB)
Title: Preparation of organic lead compounds
IPC: C25B3/13
Filed: 1958-07-28
Abstract: 839,172. Lead organic compounds. NATIONAL ALUMINATE CORPORATION. July 28, 1958 [July 31, 1957], No. 24186/58. Class 41. Lead alkyl or aryl compounds are made by electrolysing a solution of a Grignard reagent dissolved in an organic solvent, using a lead anode which is consumed during the process. Diethyl ether or its homologues or tetra hydrofuran may be used as organic solvent, in which the lead alkyl or aryl produced is soluble and is separated by distillation. Polyoxyalkylene ethers may also be used as solvents when the lead compound forms a separate layer. In examples, ethyl magnesium bromide is dissolved in diethyl ether, and the electrodes are well separated, or the cathode of platinum is provided with spacers. The temperature of electrolysis is about the boiling point of the solvent and a reflux condenser is provided; alternatively the process is conducted under pressure.
Patent GB-905548-A (GB)
Title: Stabilisation of lubricants
Filed: 1960-07-12
Abstract: A lubricant is stabilized by incorporating therein a stabilizing concentration, e.g. 0,01% to 5% of 4,41-di-(sec-alkylamino)-diphenyl methane, N,N,N1,N1-tetra-(sec-alkyl)-4,41-diamino diphenyl methane, or N,N,N1,N1-tetraethyl-4,41-diamino diphenyl methane.  Examples of the inhibitor are 4,41-di-(isopropylamino) diphenyl methane, 4,41-di(sec-butylamino)diphenyl methane, N,N,N1,N1,-tetra-(sec-butyl) 4,41-diamino diphenyl methane, N,N,N1,N1tetra-(isopropyl)4,41-diamino diphenyl methane, and N,N,N1,N1,-tetra-ethyl-4,41-diaminodiphenyl methane, also compounds, as above, in which the phenyl groups are substituted in the 2-position.  Preferably the alkyl substituents are the same and contain from 3 to 12 carbon atoms each in the di-alkyl substituted compounds, and from 2 to 12 carbon atoms each in the tetra-alkyl substituted compounds.  The invention which is particularly applicable to stabilizing synthetic lubricants, e.g. aliphatic esters, polyalkylene oxides, silicones, esters of phosphoric and silicic acids, and highly fluorinated hydrocarbons, may also be applied to petroleum base lubricants, petroleum base greases, and to synthetic greases.  The synthetic greases are made by compositing metallic soaps, e.g. lithium stearate, calcium stearate and aluminium naphthenate, with the synthetic lubricating oils described above.  The grease may also contain thickening agents such as silica, carbon black, metal oxides, phthalocyanines, polyacrylates, talc, bentonite, organo treated clays, alkyl ureas, aryl ureas, p-tolyl and p-chlorophenyl urea derivatives of bitolylendiisocyanate, p teridines and N-n-octadecylterephthalomate. The amino diphenyl-methane additive may be prepared as a solution in a hydrocarbon solvent and may be used with other additives such as a metal deactivator, dye, viscosity index improver, pour-point depressant, anti-foaming additive, lubricity and extreme pressure additive, or a detergent.
Patent GB-1467755-A (GB)
Title: Process and apparatus for the manufacture of photoconductor webs
IPC: H01L31/0248
Filed: 1975-06-05
Abstract: 1467755 Photoconductive web coatings HOECHST AG 5 June 1975 [7 June 1974] 24286/75 Heading D1L Spaced photoconductive coatings 37 are applied to a carrier web 10 curing a slot die 4 supplied at one end 5 thereof with excess coating material 35 from vat 1 by a dosing pump 2 via a slide valve 13, the excess being removed at the other end 6 of the die 4 by a second  pump 7 and recycled to vat 1 via second slide valve 14. At the beginning of the coating operation valves 13 and 14 are open and closed respectively so that coating material 9 is extruded from the slot die 4 to form front edge 16 of coating layer 37 at which time valve 14 opens. Coating is terminated by closure of valve 13 shortly followed by valve 14 so that a small amount of coating material is removed from the die and coating abruptly stopped. The opening and closing of the valves is controlled by timers 20, 20" operated by rotation of backing roller 11. A supplementary supply of coating material from pump 2' via slide valve 13' may be used at the beginning of each coating step.
Patent GB-481124-A (GB)
Title: Improvements in speed-regulating governors
IPC: G05D13/00
Filed: 1936-09-05
Abstract: 481,124. Speed governors. SUNDERLAND FORGE & ENGINEERING CO., Ltd., and SPRAGG, H. Sept. 5, 1936, No. 24329. [Class 57] Movements of a lever b connected to a centrifugal governor are transmitted by a rod a to the spindle -c of a regulating valve. A hand wheel f having a boss f2 is threaded to the spindle a and is connected to the spindle c by a universal joint h. The speed setting is varied by adjusting the hand wheel f and its movement on the rod a is limited by an adjustable stop j. A spring blade carried by the boss f2 engages the flat sides of the stop j.
Patent GB-1075167-A (GB)
Title: Purification of brine
Inventor: BENDLE JOHN HUXTABLE
IPC: C01D3/16
Filed: 1965-06-09
Abstract: A cyclic process for the purification of impure calcium-containing brine comprises: (i) treating the impure brine with a brine which contains NH4CO3 whereby CaCO3 is precipitated and removed; (ii) evaporating water from the brine to precipitate NaCl which is recovered; (iii) treating the residual brine with Ca(OH)2 whereby CaSO4 is precipitated and removed; (iv) treating the resultant brine with CO2 to produce an ammonium carbonate-containing brine for use in a further cycle of the process.  Prior to step (i) the impure brine, which may contain CaHCO3 and Mg salts as impurity, may be treated with Ca(OH)2 to precipitate CaCO3 and Mg(OH)2. In step (iii) the amount of Ca(OH)2 added is preferably substantially equivalent to the (NH4)2SO4 present in the brine.  In step (iv) the brine may be divided into two parts, preferably equal, one part being saturated with CO2 to form NH4HCO3 in the brine, which is mixed with the other part whereby NH4HCO3 is converted to NH4CO3.  The process of the invention yields a brine containing less than 0.015% by weight Ca.++