baber/WOPTO huggingface dataset:
Patent GB-1439808-A (GB)
Title: Process for the recovery of guanidine carbonate from aqueous solution
IPC: C07C239/00
Filed: 1973-06-20
Abstract: 1439808 Guanidine carbonate; melamine CHEMIE LINZ AG 20 June 1973 [14 July 1972] 29412/73 Heading C2C Guanidine carbonate is obtained from an aqueous solution in which it is present in addition to urea, pyrolysis products of urea, ammonia and carbon dioxide by heating the solution at #80 C. and at atmospheric pressure (to expel the NH 3  and free C0 2  present) evaporating the resulting solution (which contains an amount of CO 2  equivalent to the guanidine content) at # 80 C. and #0À80 atmosphere absolute pressure until the solution after cooling to 20-30 C. is saturated with urea, separating the resulting solid precipitate (mainly melamine) and then suspending the mother liquor which remains in an amount of liquid ammonia which is at least twice (e.g. 2 to 4 times) the weight of urea present, the water content of the suspension not exceeding 20% by weight, and then separating off the guanidine carbonate which remains undissolved. A further evaporation may be effected on the solution immediately prior to the suspension in liquid ammonia also at #0À80 atmosphere absolute and #80 C. provided that, if the water content of the final concentrate is between 0 and 10% by weight, then the evaporation is carried out within 5 seconds, e.g. by spray drying. The treatment with liquid ammonia is generally effected at - 33 to + 20 C. and at 1 to 10 atmospheres absolute pressure. The examples describe the recovery of guanidine carbonate and melamine from mother liquors obtained in the manufacture of melamine from urea or cyanic acid and ammonia.
Patent GB-142053-A (GB)
Title: Journal bearings
IPC: F16C33/08
Filed: 1919-11-26
Abstract: 142,053. Hachmann, F. Nov. 26, 1919. Brasses and linings.-A journal bearing made in two complementary halves is provided with a number of longitudinal ribs 12 to retain a Babbitt lining 15. The ribs are inserted in undercut grooves of circular or dovetail section. The shells 8, 9 and' ribs 12 are tinned before the lining is cast. The ribs are of copper bearing metal and take the wear when the lining is worn down. As shown in Fig. 8, the ribs 12 are replaced by round wire 19.
Patent GB-404425-A (GB)
Title: Improvements in or relating to the grid control of mercury vapour valves
IPC: H02M1/04
Filed: 1932-10-21
Abstract: 404,425. Converting; dynamo-electric machines. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Oct. 21, 1932, No. 29460. Convention date, Oct. 21, 1931. [Classes 35 and 38 (ii).] Multiple anode mercury - vapour valves 2, used, for example for converting D.C. to A.C. and in replacing commutators in electric motors by cyclic control of grid potentials, have the grids connected through the controlling commutator 3 to a source of alternating voltage 4 of many times the frequency of ignition, and of an amplitude exceeding that of a negative bias applied to the grids for example by the battery 5. A voltage of the frequency of that feeding a motor may also be superposed upon the high frequency voltage.
Patent GB-978415-A (GB)
Title: Improvements relating to apparatus for separating solid materials in liquid suspensions
IPC: B03B5/74
Filed: 1960-08-26
Abstract: 978,415. Washing granular materials..C. R. BURCH. Aug. 22, 1961 [Aug. 26, 1960], No. 29545/60. Heading B2H. Apparatus for separating particles of different materials contained in a pulp, comprises at least one deck having axial symmetry and providing an inclined surface, said deck(s) being subjectable during operation to movement in a circular orbit in a plane transverse to the axis thereof, a distributer associated with the, or each, deck through which pulp is applied thereto, and means for producing relative angular rotation about said axis between the deck(s) and said distributer(s). The deck 1 is supported on a hollow, vertical drive shaft 3 rotatable in bearings in a housing 4 which is mounted in a frame 7<1>' 8, 8<1> which is supported through parallel linkage 11, 11<1>, 12 from a fixed.frame 5, 5<1>, 6 ; thus the deck 1 is flotably mounted. Pulleys 15, 16 are on a lay shaft mounted in the fixed frame. The pulley 15 is driven by a motor or the like and from the pulley 16 a belt 19 transmits drive to a pulley 14 on the lower end of the shaft 3, thus rotating the deck 1. An out-of-balance weight 22 is fixed on a spindle 23 which is rotated from a pulley 27 through an eccentric connection and the rotation of the out-of-balance weight causes the floating frame and hence the deck to move in a circular orbit in a plane transverse to the axis of the shaft. In operation the apparatus, shown horizontally, is tilted at a slope of between 1 in 5 and 1 in 20. Pulp is continuously laid on the deck 1 from a feed box 28, Fig. 4, as the deck revolves and moves in its orbit, being deposited on the part of the deck which is descending. The lighter particles and the liquid vehicle flow over the lower edge of the deck into a launder 31. The heavier particles, after being washed by water jets, at 29, to remove any remaining tailings, are swilled off the deck by hihg pressure jets, at 30, into the recessed centre 2 of the deck whence they pass down the hollow shaft 3 and are collected in a launder 32. In a modification the deck 35, Fig. 5, is suspended by flexible members, e.g. chains, or supported by compression members (the means of support not being shown) and a shaft 37, extending through its central opening 36, is rotated. The deck is shaken in a circular orbit by means of an annular balance weight 41 supported by a plurality of cranks 42 arranged parallel to each other and located adjacent the outer edge of the deck. The shaft 37 carries pulp distributers and water jet producers. The concentrate is diverted by a member 38 into a launder 39 and tailings fall into a launder 40.
Patent GB-1421599-A (GB)
Title: Method for reducing metal ores
IPC: C21B13/00
Filed: 1973-06-21
Abstract: 1421599 Producing sponge metal FIERRO ESPONJA SA 21 June 1973 [3 July 1972] 29591/73 Heading C7D Metal oxide particles are reduced to sponge metal by CO + H2 in a batchwise process using two or three interchangeable reactors. In Fig. 1, reactor 10 is reducing the ore, reactor 12 is cooling the. sponge metal, and reactor 14 is charging or discharging. In the case of Fe ore, the reducing gas (CO+H 2 ) from the reformer 16 is pre-heated in heater 40 and combustion chamber 10a to enter the reactor at 900-1100C, the effluent gas passing out through pipe 68, cooler 70, valve 78, pipe 76 and heater 104. Part of the cooled effluent gas is then recycled to the reactor 10 by way of pump 106, pipe 110 and pipe 36, the remainder passing into the reactor 12 by way of pipes 108 and 114. The effluent gas from reactor 12 passes through cooler 134, valve 92, pipes 90 and 138, pump 140, pipes 114 and 120 and back into the reactor 12. Reactor 14 is isolated during charging or discharging by closing valves 50, 98, 102, 130 and 66. For the next cycle, reactor 14 becomes the reduction reactor, reactor 10 is the cooling reactor and cools the produced sponge, and reactor 12 discharges the cooled sponge and is charged in preparation for the next cycle. In another embodiment Fig. 2, (not shown) only two reactors are used and during each cycle one is used for cooling followed by discharging and charging, and the other for reduction, the time taken up by cooling being less than the reduction time to accommodate the discharging and charging. Other ores which may be reduced by this method include those of Ni, Cu, Sn, Ti, Ba and Ca.
Patent GB-214562-A (GB)
Title: Improvements in a salt box or the like
IPC: A47G19/24
Filed: 1923-11-23
Abstract: 214,562. Longstreth, B. Nov. 23, 1923. Powder distributors. - A box for salt, sugar, flour or other granular or powdered material comprises a body having externally-fitting flanged end caps 2, 3. Through end cap 2 and the wall of the body are formed a pair of openings 5, 6, shown as opposed to each other, but disposed always at least 90‹ apart, a pouring spout 7, hinged to the container by a strip of fabric 10, being fitted in the former, and an inwardly dished sifter member 11 of perforated material, also held in place by fabric 13, being disposed within the latter opening. Both openings are closed by the usual label 14.
Patent GB-1387008-A (GB)
Title: Rotary servo-mechanism
IPC: F15B9/14
Filed: 1972-06-26
Abstract: 1387008 Power steering mechanism MITSUBISHI KINZOKU KOGYO KK 26 June 1972 [26 June 1971] 29743/72 Heading B7H [Also in Division G3] A rotary hydraulic servomotor, e.g. for power steering, has two pairs of servochambers 11, 13 and 12, 14 defined within casing 2 by vanes 5A, 5B on output member 5 and fixed webs 2A, 2B integral with the casing. The output member projects through end block 3 and includes a bushing 5L whereby it is rotatably mounted on a rotary input shaft 1 extending through block 3 and an opposite block 4. Follow-up valve mechanism is provided at 30 between the input shaft and bushing 5L, and may include grooves 23, 23a in the bushing supplied respectively from ports 19, 19a via 20-22 and 20a-22a. Groove 33 in the bushing is connected to drain via 34-36, and grooves 24, 24a in the input shaft connect respectively with chambers 11, 13 and 12, 14 via 26-29, 31, 32 and 26a-29a, 31a, 32a. There may be zero, negative or positive lap between the grooves in the input shaft and the output member when the valve mechanism is in neutral. In modifications (Figs. 8 and 9, not shown), the servochambers are connected to grooves in the output member and the supply and exhaust grooves are located in the input shaft and connected to axial passages in the input shaft. The grooves may be duplicated at diametrically opposite regions of the input shaft and the output member to ensure hydraulie balance of the input shaft (Fig. 10, not shown). In a further hydraulically-balanced embodiment (Fig. 11), the input shaft has supply grooves 66 and exhaust grooves 67, and the output member has grooves 68 communicating with chambers 11, 13 and grooves 69 communicating with chambers 12, 14.
Patent GB-1137405-A (GB)
Title: Frost protection of pipe systems
Inventor: JENNINGS GEORGE ARTHUR NEVILLE
IPC: B60S3/00
Filed: 1966-07-01
Abstract: 1,137,405. Vehicle washing apparatus. SPARKBROOK DEVELOPMENTS Ltd. 15 Sept., 1967 [1 July, 1966], No. 29761/66. Heading B7J. [Also in Division E1] Vehicle washing apparatus comprises solenoid operated valves 1-7 which may be individually energized by a unit C controlling water and detergent sprays a-f operating with a rotary brush (not shown), and a thermostat A in series with a relay coil H operating at freezing temperature to close contacts D, E, F and G and operate the valves and the unit C controlling the pumps and so on. When contact D closes cocks 6 and 7 open and allow the system to drain empty and the pumps are isolated and inoperative. The thermostat and relay may also control pipe heating pads in parts of the system where draining is not possible.
Patent GB-629504-A (GB)
Title: Improvements relating to apparatus for discriminating between electrical pulses
IPC: H04N5/10
Filed: 1947-11-08
Abstract: 629,504. Television. FERRANTI, Ltd., YATES, J. T., and JONES, I. N. VAUGHAN-. Nov. 8, 1947, No. 29794. [Class 40 (iii)] [Also in Group XL (c)] In a circuit for distinguishing between long and short pulses, such as frame and line synchronizing pulses in a television signal, the pulses unblock a valve 1, causing cathode current to flow. During a short-pulse this does not reach the anode due to a negative suppressor grid potential, except for a brief initial charge which is absorbed by a capacitor 16, the current flowing to the screen to produce a negative pulse across resistor 9, which is used for line synchronizing in the case of television. The screen pulse is impressed on the suppressor by means of a capacitor 8, and if the pulse is sufficiently long the latter discharges sufficiently through resistor 6 to raise the suppressor grid potential to such an extent as to allow the anode to take a part of the current previously flowing to the screen, which rapidly increases owing to the negative and positive mutual conductances existing between the suppressor and the screen and anode respectively. This cumulative rise in anode current produces a pulse across resistor 4 which is used for frame synchronizing in the case of television. The time constant C8, R6 is given a value intermediate the durations of line and frame synchronizing pulses. The screen resistor may be replaced by a transformer if a low impedance output is desired from this electrode. In the arrangement shown the complete vision signal is applied to valve 1 which acts as a synchronizing separator since it is driven beyond cut-off by vision signals.
Patent GB-482151-A (GB)
Title: Improvements in the installation of supercharged internal-combustion engines in aircraft structures
IPC: B64D33/08
Filed: 1936-11-02
Abstract: 482,151. Aero-engines ; supercharging. BRISTOL AEROPLANE CO., Ltd., FEDDEN, H. R., and OWNER, F. M. Nov. 2, 1936, No. 29806. [Class 4] [Also in Group XXVII] In a, supercharged internal-combustion engine, of the kind in which the air or mixture, after having been compressed in one or more supercharging compressors, is passed through a cooler, the cooler is housed within an aircraft wing or other structure, and an air-intake or set of air-intakes, supplies both cooling air to - the cooler and combustion air to the supercharging compressor. In the construction shown in Figs. 1 and 3, air-intakes 15, situated at the leading edge of the wing 14, supply cooling air to intercoolers 25, and combustion air to a supercharger 22, driven by a shaft 23 from a radial cylinder engine 10, via conduits 19 and 20 in ducts 17, guide vanes 16 being provided to prevent accumulation of pressure at the corners of the ducts. The supercharger discharges into pipes 24, leading to the intercoolers and the cooled air is conveyed from the intercoolers to the carburetter 27 by pipes 26 connected to the pipe 28. After leaving the carburetter the mixture may be further compressed by passing it through a supercharger (not shown) housed in the rear of the engine casing. Cooling air from the intercoolers, which may also act as engine oil coolers, is led away through a duct 29, the exit 30 of which is controllable by a hinged flap 31. The shaft 23 is fitted with a clutch to enable the supercharger 22 to be put out of action and may also be fitted with a detachable coupling so that by disconnecting the pipe 28 the engine may be detached from its mounting leaving the supercharger, coolers and air ducts in the wing. In a modified construction, Figs. 4 and 6, the supercharger 50 is driven by an exhaust driven turbine 51 isolated from the carburetters 27 by a circular partition 61. The exhaust gases pass through pipes 47 to a collecting ring 46 in the engine cowling 45 and are led to the turbine by tail pipes 48 provided with branch passages 52 and exit orifices 49, the flow of gas through the passages 52 being controllable by a valve 53. The supercharger 50 takes air on both sides from the conduits 20 and delivers the compressed air through pipes 55, leading to intercoolers 56, cooling air for which is supplied through conduits 19 and discharged through conduits 57. The compressed air travels from the intercoolers to the carburetter 27, via pipes 58, which unite at 59 in a short downward pipe 60 leading to the carburetter.
Patent GB-1255524-A (GB)
Title: Isoprene purification
IPC: C08F36/08
Filed: 1969-08-08
Abstract: 1,255,524. Purifying isoprene. GOODYEAR TIRE & RUBBER CO. 8 Aug., 1969 [11 Sept., 1968], No. 39813/69. Heading C5E. The cyclopentadiene content of isoprene streams is lowered, e.g. to below 1 p.p.m., by fractional distillation in the presence of at least 3% of 2-pentene and at least 5% of 2-methyl-2- butene, there being a total of at least 10% of these two materials, all percentages being based by weight on the total weight of the stream.
Patent GB-1111336-A (GB)
Title: Aryl ketones
Inventor: LORD GEORGE HARRY
IPC: C07C45/46
Filed: 1964-07-24
Abstract: Novel ketones of the formula <FORM:1111336/C2/1> in which X os a carbonyl group, one of R2 and R3 is a group OR7, R7 and R1 being H, alky or a group R8NR9R10, R8 being alkylene, R9 and R10 being H or alkyl or forming a heterocyclic ring at least one of R1 and R7 being a group R8NR9R10); R4, R5 and the othe of R2 and R3 are H, alkyl, aralkyl or halogen, R6 is naphthyl, phenyl, alkenyl and/or halogen-substituted aryl and Y is a carbon-carbon bond or a saturated or unsaturated divalent group containing carbon and hydrogen only Y having at least 2 carbon atoms when R6 is phenyl and R4, R5 and one of R2 and R3 are all hydrogen are prepared by (i) condensing a dihydroxy benzene with a carboxylic acid or its derivative R6YA, where A is -COOH, -COCl or -CN; or (ii) reacting a dimethoxybenzonitrile with a Grignard reagent R6YMgHal; or (iii) condensing a dimethoxyacetophenone with an aldehyde R6WCHO, in which W is a group corresponding to Y, to form an a -b  unsaturated ketone which may be hydrogenated if desired.  The reaction (i) preferably uses ZnCl2 as catalyst if the acid is used, AlCl3 with the chloride and HCl and ZnCl2 with the cyanide.  The product of (i) may be etherified, e.g. using an alkyl halide in acetone solution in the presence of an acid binding agent.  The product of (ii) or (iii) may be demethylated.  Exemplified products have R1 and R2 hydroxy, either or both of which may be etherified to b -diethyl aminoethoxy or b -N-morpholinoethoxy, or R1 and R3 methoxy, and also may have R5 chloro, R6 phenyl and p-chlorophenyl and Y ethylene, propylene, butylene, butadienylene and -CH = CH-.  Pharmaceutical preparations having amoebicidal activity comprise the above compounds in conjunction with a conventional diluent or carrier.
Patent GB-1218767-A (GB)
Title: Improvements in or relating to the manufacture of foot-wear
Inventor: HALL THOMAS ARTHUR
IPC: A43B23/04
Filed: 1968-06-21
Abstract: 1,218,767. Boots &c. PHILLIPS PATENTS Ltd. 23 June, 1969 [21 June, 1968], No. 29815/68. Heading A3B. A method of making a shoe upper 2 includes the step of simultaneously cutting out and bonding the facing material and the lining material from separate sheets or rolls of facing material and lining material such that the facing and lining are bonded together at least around the edges 4 of the upper and such that there is surplus material in at least one place, e.g. at 12 or 14. The surplus material 12, 14 is then cut away to leave openings 16 and 18. A stiffening member (not shown) is inserted in the opening 16 and the end part 20 of the upper is inserted in the opening 18 to close the upper. The upper may be formed from a P.V.C. facing material and a rubberised cotton lining material and is cut out and bonded using a H.F. cutting and welding press. One of the layers may be coated with a thermoplastic adhesive. After the stiffener has been inserted in the opening 16 the facing, stiffener and lining are bonded together by the application of heat and pressure.
Patent GB-207812-A (GB)
Title: Carburetter for internal combustion engines
IPC: F02M7/11
Filed: 1923-11-27
Abstract: 207,812. Cayet, M. C. Nov. 28, 1922, [Convention date]. Spray carburettors.-The Venturi tube 1 is supplied with a rich mixture through a slot 7 on the engine side of the main air valve 5, excessive fuel flow at high suctions being prevented by suction transmitted to the upper part of the float chamber through a recess 27 in the valve 5, and a passage 25. Fuel is supplied from a float chamber to a chamber 8, and passes through a valve-controlled orifice 13 and outlets 15 to longitudinal slots 16, where it mixes with air drawn in through apertures 19 controlled by a ported slide 20. The rich mixture is rendered homogeneous in passing through the expansion chamber 17, narrow passage 21, and second expansion chamber 22, to the slot 7. In the case of a single cylinder engine and consequent intermittent suction, the upper part 36, Fig. 3, of the fuel supply device is detached, and is pushed by a spring 38 into contact with a shoulder 37 on the casing, so that mixture is cut off until the suction at 7 reaches a given value, whereby better atomization of the fuel is ensured. A baffle 3 may be provided on the air inlet. The Specification as open to inspection under Sect. 91 (3) (a) comprises also modifications in which the passage 25 is omitted, the fuel flow being controlled by a spring-lifted valve in the fuel pipe connecting the float chamber and the chamber 8, the opening of the valve being reduced either by the suction, or by a cam on the valve 5. This subject-matter does not appear in the Specification as accepted.
Patent GB-1222696-A (GB)
Title: Improvements relating to temperature-responsive mechanical actuating devices
Inventor: BAYLISS ALBERT LAWRENCE
IPC: G01K5/44
Filed: 1968-06-22
Abstract: 1,222,696. Temperature responsive actuating element. A. L. BAYLISS and K. L. BAYLISS. June 17, 1969 [June 22, 1968], No.29888/68. Heading G1D. A temperature responsive actuator comprises a tubular housing 5, a sleeve 8, having two axially extending straight slots 10, secured within the housing 5 by scans 9, a cylindrical barrel 11 rotatable within the sleeve 8 and having two helical slots 13 therein, and a piston 16 slidable axially within the barrel 11 and having two radial pins 17 which pass through the slots 13 and engage the slots 10, the piston 16 being movable against the action of a spring 15 by a plunger 18 actuated by thermal expansion of a cartridge of wax or other expansible material in a cylinder 19, the movement of the piston imparting rotary movement to the barrel 11 and hence to an arm 12 secured thereto, the arm being used to operate a ventilator or the like (not shown). The pitch of the helical slots 13 need not be uniform along their length, and in alternative constructions, the helical slots could be formed in the sleeve and the straight slots in the barrel, or the sleeve could be omitted and effectively replaced by grooves formed in the wall of the housing 5.
Patent GB-193110-A (GB)
Title: Improvements in or relating to table lamps
IPC: F21V21/02
Filed: 1921-11-10
Abstract: 193,110. Parker, E. G. Nov. 10, 1921. Stands. - A stand for a table lamp composes two posts adapted to be removably attached to the table, and arched or bent or foldably constructed to meet over the middle of the table and form a bridge, or combined with a member or members to constitute the bridge, and means are provided on or in connection with the bridge for supporting a lamp. The posts b are supported by shoes c, Fig. 3, which are cloth lined and fit over the edge of the table a, the front g of each shoe being adapted to receive a wedge h for secure attachment. Towards the rear end, the shoe is formed with an upstanding flange j, between which and the rear i the post b is inserted and held. The horizontal part of the shoe is formed to serve as an ash tray. The posts, in one form, are made of metal and the upper parts are hinged and adapted, when not in use, to lie flab against the lower parts. At the end of each upper part is a half-gallery, adapted to be secured by a button device to the corresponding half-gallery on the other post when in use. The electric lamp flex is threaded through four eyelets provided in one of the posts, and runs over a pulley attached at the head of the posts. In another form, the posts b, Fig. 1, are simple uprights and the bridge, is constituted by a strip of textile fabric d, provided with holes at its ends f, which engage in studs e at the upper ends of the pests, thus providing ready adjustment to tables of different widths. A spring finger-grip k engages the strip d and the lamp flex to support the lamp.