baber/WOPTO huggingface dataset:
Patent GB-1009219-A (GB)
Title: Improvements in or relating to piping incorporating pipes of ceramic material
Inventor: HAWKINS PAUL HENRY
IPC: F16L47/22
Filed: 1962-03-12
Abstract: 1,009,219. Coupling for ceramic pipes. H. HAWKINS Ltd. May 27, 1963 [March 12, 1962], No. 9354/62. Heading F2G. A method of forming a joint between a pair of pipes formed of ceramic material comprises the steps of expanding the ends of a sleeve of thermo-plastic material, the original internal diameter of which is less than the external diameter of the pipes to be joined, the expansion of the ends being carried out at a temperature which is less than the temperature at which the thermoplastic material is plastic, inserting the ends of the pipes into the expanded ends of the sleeve so that the pipes abut against a portion intermediate the ends of the sleeve, which portion has not been expanded, and warming the sleeve so that the expanded ends tend to shrink back to their original size thus gripping the pipes. The pipe ends may be smooth or may contain a groove or an annular projection, or an 0-ring may be inserted between the sleeve and the pipe or a sealing ring may be inserted in a groove in the pipe end.
Patent GB-1131578-A (GB)
Title: Improvements in and relating to a liquid-liquid extraction process
Inventor: GRIENEISEN ANDRE
IPC: G21F9/12
Filed: 1967-02-28
Abstract: 1,131,578. Extracting with liquids. COMMISSARIAT A L'ENERGIE ATOMIQUE. 28 Feb., 1967 [8 March, 1966], No. 9371/67. Heading C1C. [Also in Divisions B1 and G6] In the countercurrent extraction of an element from an aqueous solution by means of an organic solvent, extraction takes place in zone 2, the aqueous solution entering at 1 and the organic solvent at 3; in order to improve the extraction efficiency, the loaded solvent 4 is washed in zones 6, 7 by an aqueous solution which enters at 5, leaves at 9, and is contacted in zone 11 by a second organic solvent stream introduced at 12; the extracted aqueous washing solution is led to the primary extraction zone 2 together with the aqueous feed. The organic solvent 13 leaving zone 11 joins with the main organic solvent streams between the washing zones 6 and 7. Extraction of an element from an organic solution by means of an aqueous solution may be carried out by reversing the positions of the aqueous and organic phases throughout the process. The process may be used for the separation, in a bank of mixer-separators, of uranium and plutonium from nitric acid solutions containing fission products and derived from the reprocessing of irradiated nuclear fuel, using a solution of tributyl phosphate in dodecane as the organic solvent and nitric acid as the aqueous washing solution.
Patent GB-572728-A (GB)
Title: Improvements in and relating to the production of cellulose from lignin-containing cellulosic material
IPC: D21C3/16
Filed: 1941-07-24
Abstract: Cellulose for paper making and other purposes is produced from cellulosic material having a lignin content of from 17 per cent upwards by treating the material with dilute nitric acid of from 2 to 7 per cent concentration at atmospheric pressure and at a temperature between 90 DEG  and 100 DEG  C. for a period not exceeding three hours.  Agitation is preferably avoided.  The proportion of nitric acid should not exceed 22 1/2 per cent calculated on the weight of the ovendried wood and may advantageously be from 12 to 17 per cent. A proportion of sulphuric acid may be present in the ratio of from 1 part by weight of sulphuric acid to 2 parts of nitric, to 2 parts of sulphuric to 1 of nitric, calculated on the anhydrous acid.  Prior to the acid treatment, the material may be extracted with hot water. When treating wood in the form of veneer, it may first be soaked in acid solution, the excess acid run off and heated to 90 DEG  to 100 DEG  C., and the impregnated veneer then added to the heated acid while maintaining the temperature. After the acid treatment is finished, the material may be subjected to alkaline treatment with 0.5 to 2 per cent sodium hydroxide and bleached.  In an example, air-dry beech sawdust is heated from cold to 96 DEG  C. with 2 per cent nitric acid and maintained at 96 DEG  to 100 DEG  C. for 3 hours.  The residue is washed with water and then extracted with 0.5 per cent caustic soda at 96 DEG  C. for 1 hour.  After bleaching with chlorine, a yield of 48.5 per cent of bleached pulp is obtained containing 80.6 per cent of alpha cellulose.  Further extraction with 1 per cent caustic soda gives a yield of 40.05 per cent of pulp of higher purity.  Similar results are obtained in shorter time, using a mixture of nitric and sulphuric acids in equal proportions.  When green wood sawdust is used as starting material, it is first washed with hot water. In an example illustrating this feature, a mixture of beech, oak, common elm, willow, cherry, lime, sweet chestnut and horse chestnut sawdusts is employed.  Specifications 438,433, 438,435, 438,643 and 442,020 are referred to.
Patent GB-510080-A (GB)
Title: Apparatus for use in feeding chemical or other liquids into liquid or semi-liquid fuels
IPC: F23K5/02
Filed: 1939-03-27
Abstract: 510,080. Mixing liquids in flow. WALLSEND SLIPWAY & ENGINEERING CO., Ltd., and DOBBS, A. G. March 27, 1939, No. 9459. [Class 86] Apparatus for feeding chemical or other liquids into liquid or semi-liquid fuel comprises a storage tank 1 which discharges through an outlet valve 2 into a collecting chamber 3 through a connection 13 open to the air, the chamber being fitted with a level indicator 4 and discharging through a measuring valve 7 into the fuel conduit 9. A non-return valve 14 may be fitted in the pipe 8.
Patent GB-434926-A (GB)
Title: An improved process for making chemically reactive artificial asphalt of unlimited stability
IPC: C08L95/00
Filed: 1935-03-26
Abstract: Sea-water mud, in a moist state or after drying at low temperature in the absence of air, is mixed with bituminous substances, e.g. natural or artificial asphalt, or coal tars, if desired in emulsified form, and the whole is heated in vacuo at 180 DEG  C. until the constitutionally bound water of the mud is completely expelled.  The proportion of bituminous substance used may be from one half to an equal amount by weight, referred to the dry mud.  Before use the mud may be separated from crystalline matter.  Specification 372,917 is referred to.
Patent GB-1244811-A (GB)
Title: Process for the preparation of substituted aromatic compounds
Inventor: GRARD CHARLES
IPC: C07C49/84
Filed: 1970-02-26
Abstract: 1,244,811. Aromatic hydrocarbons. RHONEPOULENC S.A. 26 Feb., 1970 [27 Feb., 1969], No. 9479/70. Heading C5E. [Also in Division C2] Aromatic compounds substituted by an aliphatic, cycloaliphatio or araliphatic hydrocarbyl radical are prepared by reacting an aromatic compound containing at least one hydrogen atom attached to an aromatic nucleus with an optionally substituted aliphatic, cycloaliphatic or araliphatic halide or alcohol, in the presence of, as catalyst, a ruthenium, rhodium, osmium or iridium compound. Examples describe the reaction of benzyl chloride with benzene, toluene, p-xylene and naphthalene; of cyclohexylchloride with toluene; of t-butylchloride with ethylbenzene and biphenyl; of allylchloride with isopropylbenzene; of 1,4-his- (chloromethyl) benzene 'with 1,3,5-trimethylbenzene; and of benzyl alcohol with benzene. One or two hydrocarbyl groups are introduced into the aromatic compound.
Patent GB-754010-A (GB)
Title: Process for recovering fumagillin from an aqueous solution thereof
Filed: 1954-03-31
Abstract: Fumagillin is recovered from an aqueous medium such as a filtered fermentation broth by contacting said aqueous medium with a substantially water-immiscible organic solvent in which fumagillin is soluble at 22 DEG  C. to the extent of about 2 mg/cc. to about 20 mg. per cc.  The pH of the aqueous medium may be between 2 and 9 but is preferably 3.5 to 6.5.  The fumagillin is recovered from the organic solvent solution by concentration and crystallization.  Preferred solvents are monochlorbenzene, n-butyl acetate, benzene, n-butyl bromide and mixed amyl acetates.  Others specified are cyclohexanone, benzaldehyde, ethyl acetate, ethyl ether, n-butanol, n-hexanol, sec.-hexanol, n-octanol, iso-octanol, iso-valeric acid, 1-chlorpentane, 1-, 2- or 3-pentyl acetate, 2- or 3-methyl-1-butyl acetate and mixed chloropentanes.  The solvent has a distribution coefficient constant for fumagillin of 15 to 200.  Specification 695,171 is referred to.
Patent GB-896856-A (GB)
Title: Digital input automatic transmitter
IPC: G05D3/12
Filed: 1960-03-17
Abstract: 896,856. Electric selective signalling systems; electric positioning systems. BENDIX CORPORATION. March 17, 1960 [March 24, 1959], No. 9510/60. Class 40 (1). In a shaft positioning system a bridge ABCD, Fig. 1, compares an input (which partially determines the position of a shaft AD 124) in the form of a ratio - of two arms of DC the bridge with the outputs of a selsyn 24 driven by a servomotor 69 which also drives shaft 124. The discrepancy between the two inputs to the bridge is passed via a tachometer 117 (providing an anti-hunt signal in known manner) and an amplifier 77 to drive the servomotor to minimize the discrepancy. However, the selsyn provides outputs on lines 25, 26, 27 whose maximum to minimum ratio determines the position of its rotor 65 only inside a 60 degree segment. A switch arrangement 28 is interposed between the bridge and the selsyn to connect lines 25, 26, 27, in three different ways to points A, B, C of the bridge, thus arranging that the position of the switch determines which one of three 60 degree segments contains the selsyn rotor. However, still only 180 degrees out of 360 degrees is covered. A reversal switch 80 (i.e. having two states) inserted between the bridge 10 and the amplifier 77 determines which 180 degree is selected by being in one state or the other. Thus the input to position the shaft within 360 degrees comprises a manual movement of arm 18, and the manual setting of switches 28 and 80. A complete schedule is given in the Specification. In a modification, a punched tape input is used to operate through relays (214, 216, 218, Fig. 3, not shown), a resistance box to set the AD arm ratio - of the bridge and to determine DC by the energization of relays the state of switches 28 and 80.
Patent GB-725997-A (GB)
Title: Improvements in or relating to the heating of dielectric articles of different thicknesses by means of a high frequency field
Inventor: BOSOMWORTH GEORGE PALLISER
IPC: B29C35/12
Filed: 1953-04-08
Abstract: 725,997. Dielectric heating. FIRESTONE TIRE & RUBBER CO. April 8, 1953, No. 9526/53. Class 39 (3). Articles of different thickness are passed between two high frequency electrodes, and in order to provide a uniform rate of heating of each article the effective distance between the electrodes is varied by elevating the articles towards the top electrode by conducting supports whereby the voltage gradients in the articles are maintained substantially equal. In Fig. 2 moulds 15, 16, 17 and 19 containing foam rubber to be vulcanized are conveyed by a belt between electrodes 11, 12, and the moulds are carried on metallic electrically conducting supports 20 comprising aluminium plates 21, 22 and connecting members 23. In the case of mould 16 the air gap between it and the electrode 12 is slightly greater at its thinner end. Alternatively, an article such as that in mould 16 may be arranged in a mould 17 of uniform depth with the addition of an auxiliary element 18 having the same dielectric properties. In the latter case the air gap is uniform. An article of irregular thickness, as shown in the mould 19, is provided with a part 20a of appropriate shape and similar dielectric properties.
Patent GB-560633-A (GB)
Title: Improvements in and relating to fluid controlling valves
IPC: F16K7/12
Filed: 1942-07-09
Abstract: 560,633. Diaphragm valves. SAUNDERS VALVE CO., Ltd., and SAUNDERS, P. K. July 9, 1942, No. 9544. [Class 135] A diaphragm valve of the kind in which the diaphragm co-operates with a transverse weir has the diaphragm locally thickened where it is compressed to effect closure. In the form shown, the diaphragm is moulded to the shape shown and the thickening takes the form of a bar 17 opposite the weir 3. The bar has a series of indentations 16 moulded as deep as the thickening. Alternatively a series of notches of V or rectangular shape may extend across the bar. The whole of the free area of the diaphragm may be thickened and the whole surface provided with a series of indentations or a series of circular; or spiral grooves. Specifications 321,892, [Class 135], 362,084, 434,664, 434,665, 434,684, 439,701, 442,790, 516,526, 516,569, 517,887, 518,286, 527,938, and 533,116 are referred to.
Patent GB-742946-A (GB)
Title: Improvements in waste food grinders
IPC: E03C1/266
Filed: 1953-04-08
Abstract: 742,946. Garbage shredders. GENERAL ELECTRIC CO. April 8, 1953 [April 15, 1952], No. 9544/53. Class 59. [Also in Group I] A garbage shredder for attachment to a sink outlet comprises a receptacle 4, Fig. 1, containing motor-driven comminuting means and having an opening at the top provided with a removable pivotally-mounted closure device 42 which is movable from a central position in which the sink outlet is closed to two oppositely inclined positions in one of which water is directed to a channel 26 provided with a combined flow and float responsive element 29 which, when the rate of flow in the channel is above a predetermined minimum or when the level of water in the channel rises sufficiently, allows a switch 21 in the motor circuit to close, and in the other of which it affords a passage for draining the sink through its outlet without closing the switch. The closure device 42 comprises upper and lower plates 43, 45, Fig. 9, between the peripheral edges of which is interposed a flexible sealing element 46. The lower plate 43 is provided with slots 53 which rest upon pins 52 secured to the inner wall of a fitting 6 attached to the receptacle 4 so as to form the pivotal mounting for the device. A knob 47 passes through central openings in the plates and carries at its lower end a transverse pin 50 receivable in slots 51 in the lower surface of the plate 43. When the knob is turned through ninety degrees in either direction from its position of Fig. 9, the edges of the pin 50 cam downwardly over the edges of the slots 51 and thereby force the plates towards each other to compress the element 46 and expand it outwardly, as shown in Fig. 10. At opposite sides of the knob at the curved periphery of the plate 45 are provided a pair of curved walls 54, 55 the adjacent edges 56, 57 of which are spaced apart to define discharge shoots for the water. The switch 21 is mounted on the outer wall of a channel member 25 and has an operating pin 21a, Fig. 2, which is normally biassed to the switch closing position. The combined flow and float responsive element 29 is mounted on an arm 31 which projects outwardly through an aperture in the outer wall of the member 25 and is held in pivotal relation to the member 25 by means of a flexible diaphragm 33. The arm 31 passes through relatively large openings 36a, 36b in the legs of a rocking member 34 pivotally mounted on a shaft 35. The member 34 is spring-biassed in the counter clockwise direction so that an adjusting screw 40a engages the pin 21a to hold the switch open. The member 34 is rotated in the clockwise direction to allow the switch to close either when a predetermined quantity of water flowing in the channel 26 depresses the element 29 or when the level of water in the channel is sufficient to raise the element 29. The upper surface of the element 29 may be corrugated. A modified construction of flow and float responsive member is described with reference to Figs. 3a and 3b (not shown). Specifications 648,621 and 649,225 are referred to.
Patent GB-599820-A (GB)
Title: Improvements in or relating to milling machine
IPC: B23Q35/18
Filed: 1945-04-17
Abstract: 599,820. Copying by milling. CINCINNATI MILLING MACHINE CO. April 17, 1945, No. 9586. Convention date, March 23, 1944. [Class 83 (iii)] A machine for producing profiled cylindrical work according to a master pattern has means for rotating the pattern and the work and means for moving a tracer axially and radially relative to the pattern, the cutter being thereby likewise moved relative to the work. A multispindle machine is described wherein the spindles are mounted on a common member and controlled by one tracer unit. The base 10 supports a work-table 11 and a spindle-head 21 slideable transversely of the work-table by a hydraulic piston 23. The cutters C are mounted on a vertical slide 27 and are driven by an electric motor 62 carried on the head, the pattern P and work-pieces W being rotated by a hydraulic motor 44 mounted on the worktable. An adjusting bracket 14 aligns the work with the spindles, the cutters being individually adjusted vertically by screws 63. The tracer T is of conventional design and is mounted on a compound slide on the spindlehead. The control of the machining operations is by two interconnected hydraulic circuits, the master controls being assembled on casing 43 mounted on the work-table where lever 91 starts the rotation of pattern and work, lever 95 starts the axial feed of the spindle-head and also operates its return to the starting position, control-knob 115 regulates the speed of the work, and control-knob 128 regulates the rate of feed. On moving lever 91 to the start position, the work and pattern are rotated, the cutters being retained in their uppermost position by a hydraulic piston governed by the valve system of the tracer unit. With the movement of lever 95 to its start position, the tracer and cutters are lowered to the work and the feed of the spindle-head commences. A cam 171 fixed to the head coacts with a feed control valve 165 secured to the base 10, the feed being thereby regulated to slow speed during machining operations and rapid feed across gaps where no cutting takes place. Vertical movement of the tracer produces like movement of the cutters. At the end of the forward feed, the control-valve 165 trips the starting lever 91 to its stop position to stop both work rotation and feed. Lever 95 is held in the reverse position to return the spindlehead to its starting point. At any time the feed may be interrupted for inspecting the work or stopping the machine by operating lever 91, or the feed only may be arrested by operating lever 95, the cutters and tracer being automatically removed from the work. A highpressure pump moves the cutters vertically, trips the lever 91 to its "stop" position and feeds the spindle-head, whilst a low-pressure, high-volume pump supplies the pattern and work-motor 44 and boosts the high-pressure pump for the rapid traverse and return movements of the spindle-head. In a modification, the high-pressure pump is dispensed with and a connection made through a pressure-control valve, from the low-pressure pump circuit.
Patent GB-1031418-A (GB)
Title: Improvements in or relating to textile combing machines
Inventor: LORENZ HENRY
IPC: D01G19/10
Filed: 1963-03-11
Abstract: A needle bar segment for a comb cylinder is formed entirely of needle bars and is connected to the body of the comb only through the end needle bars.  Each needle bar 7 is connected to the next bar by screws 8 arranged in staggered relationship.  The first and last bars 7a, 7b are bolted to brackets 3, 4 which are in turn bolted to the comb body 2.  Radial adjustment of the bars is possible.
Patent GB-1382554-A (GB)
Title: Coating compositions
IPC: C08L83/04
Filed: 1973-02-27
Abstract: 1382554 Organosilicon coatings TORAY INDUSTRIES INC 27 Feb 1973 9612/73 Heading B2E [Also in Division C3] Substrates are coated with a composition comprises (A) 10-200 pbw hydrolysed silicon tetraalkoxide Si(OR') 4 , (B) 100 pbw hydrolysed silane RSi(OR') 3 , wherein R' is C 1-5  alkyl and R is C 1-3  alkyl or alkenyl, and (C) 0.01-10 pbw per 100 of (A) plus (B) of an alkali metal C 1-5  carboxylate, thiocyanate, nitrite, aluminate and or carbonate. In the Examples hydrolysed Si(OC 4 H 9 ) 4  in butanol or ethanol is mixed with hydrolysed CH 3 Si(OCH 3 ) 3  in butanol or ethanol and with NaCNS and butanol or MIK or with NaOOC-CH 3 , NaNO 2 , KNO 2 , NaAlO 2  or Na 2 CO 3  and acetic acid. The product solutions are applied to polymethylmethacrylate plates; they may also be applied to paper, wood, ceramics and metals, and optical lenses.
Patent GB-526900-A (GB)
Title: Improvements in and relating to screw-cutting tools
IPC: B23G5/00
Filed: 1939-03-28
Abstract: 526,900. Taps and dies ; tool-holders. ATKINSON, J. March 28, 1939, No. 9658. [Class 83 (iii)] Chasers are made by fluting a cylindrical threaded member A, Fig. 1, so that each flute forms two sets of cutting edges. The thread has the same form as that to be cut but a lefthand thread is required for chasing an external right-hand thread and vice versa. Cutters for internal threads have the same hand as the thread. The chasers may be held in a holder such as B by a pin E engaging the flutes and backed up by a screw D to provide some adjustment for the position of the cutting edge. Holes H may be tapped for headed screws S to retain the chasers. The holder may have a clamping jaw G swivelling about a pin J headed at each end to prevent lateral displacement. Such a holder acts as a spring tool, the amount of spring being adjustable at I. In a modification for use in internal threading the chaser is received in a recess in the end of a bar, a screw is provided for end adjustment and a slot and screw tongue and spring clamping action. In a further modification, cutters are arranged concentrically on the end of a barrel, Fig. 4, slotted at O for expansion by a conical screw P. In another form a split ring similar to an ordinary button die has bores to receive a number of chasers. When the bores are plain they may receive a range of chasers of common diameter but varying pitches or the bore may be threaded to suit a particular chaser only. The axis of the flute may be at a slight angle to the axis of the cutter so that the leading edge may be below centre and the trailing edge above. Alternatively, the side of the flute may be formed to give this effect. The thread on each hand may differ in pitch or all the hands may have threads of the same pitch but not part of a common helix so that by turning the cutter in its holder without end movement a new cutting edge can be brought into use. The cutter may float in the holder to compensate for discrepancy between the pitch of the cutter and that generated by the lead screw. The flute may be shaped so that the locking pin bears only on the bottom thereof. The pins E may be integral with the holders.