baber/WOPTO huggingface dataset:
Patent GB-1407888-A (GB)
Title: Oil recovery process utilizing superheated steam-hydrocarbon vapour mixtures
IPC: E21B43/24
Filed: 1973-06-07
Abstract: 1407888 Wells &c TEXACO DEVELOPMENT CORP 7 June 1973 [30 June 1972] 27136/73 Heading E1F [Also in Division B1] A method for recovering oil from a subterranean formation comprises injecting into the formation a mixture of superheated steam and a light hydrocarbon vapour. Hydrocarbon oil is heated in a heater 12 to a temperature at which it assumes a high extractive affinity for water, the hot hydrocarbon oil being then fed into the lower portion of a column 16. Feed water such as brine and containing solid impurities is fed into the top of the column 16 via a sprayhead 20, and passes downwardly through the upwardly flowing column of hydrocarbon oil. This interaction of the two streams causes a solid-free homogenous waterhydrocarbon mixture to be formed in the column and this mixture is withdrawn through a line 26. The mixture is then lowered in pressure and then heated in a heater 54 before injection into an injection well 36. Excess oil is returned to the heater 12 via line 18, and the solids precipitated in the column descend to a sludge chamber 28. Various suitable hydrocarbons are exemplified, heptane being preferred.
Patent GB-158374-A (GB)
Title: Improvements in cranes
IPC: B66C23/00
Filed: 1919-11-05
Abstract: 158,374. Vaughan, W. S. Nov. 5, 1919. Overhead travellers and transporters.-Cranes, of the type comprising a travelling standard or support carrying a cantilever extension forming a track for a traveller which moves from end to end of the cantilevers, are modified by (1) fitting the traveller with a crab which moves along the traveller transversely to the cantilevers, (2) providing two travellers and crabs, one being comparatively light and adapted to run to the extreme range of the cantilevers, and the other of heavier build adapted to act within a limited range from the standard, and (3) fitting jib cranes at various points on the structure for auxiliary purposes. Fig. 1 shows a crab j adapted to move to and fro along the traveller i which runs along the cantilevers a carried by the standard b. The standard b is fitted with wheels c for moving along tracks on a wharf or the like. A second lighter traveller k and crab are shown at the outer end of the cantilever track. Three jib cranes p are shown as examples of the manner in which the structure can be utilized to support these cranes.
Patent GB-412078-A (GB)
Title: Improvements in controlling gear for winding and hauling engines and the like
IPC: B66B1/12
Filed: 1933-10-04
Abstract: 412,078. Speed governors. MELLING, J. A., c/o Worsley Mesnes Ironworks, Wigan, and BEDFORD, W. H., 14, Ashfield Terrace, Appley Bridge, near Wigan. Oct. 4, 1933, No. 27273. [Class 57.] In winding of haulage gear, means for limiting the speed and distance o: winding is arranged t( apply the brakes and cut-off power when the speed exceeds a pre determined maximum when the retardation is too small near the end o: the wind, and when the cage moving at slow speed after retardatior reaches a given point at the end of the wind The device may be set to operate at different speeds for winding mer and winding coal &c. both during the period of retardation and the period of slow movement after retardation. The apparatus is shown as applied to a winding engine for a pair of op positely moving cages. A shaft driven from the engine drives a centrifugal governor (not shown) controlling a piston valve t which connects cylinders 1, 2 to a fluid-pressure supply z or to exhaust, so that on excessive speed the pistons of the cylinders 1 and 2, acting through rods 4 and 5, close the throttle and apply the brakes. Screwed rods g, g<1> driven from the shaft d cause nuts h, h<1> to travel in correspondence with the cages, and when the ascending cage reaches a predetermined point, the corresponding nut, say h, engages a roller on the lever i and lifts the rod n of a piston p moving in a cataract cylinder q. The cylinder q is provided with a number of adjustable vents which are covered successively by the piston p, an adjustable vent (not shown) in the cover, and a second vent in the cover controlled by a valve at 9. These vents are set to permit the escape of air from the cylinder q at the desired rate for the predetermined retardation and subsequent slow speed movement of the piston p, but if the pressure in q increases owing to more rapid movement of the piston p, the pressure acts upon a piston s to operate the controlling valve t through a lever v. The valve at 9 may be operated by fluid-pressure admitted through a cock 41. In order to alter the speeds at which the piston s will act upon the valve t. The valve t is operated positively by the nut h when a stop 15 on the piston rod n engages the lever v. The governor lever 18 has a pin-andslot connection with the rod of the valve t so that the lever v can move the valve independently of the governor. The levers i, i<1> engaged by the nuts h, h<1> have fulcrums j, j<1> free to move in slots to permit movement of the cage above the landing when necessary. The levers i, i<1> and piston p are moved downwardly by springs 19, 20. The pressure-fluid used in the cylinders q, 1, and 2 may be air, steam, water, oil, mercury &c. The valve at 9 may be closed by fluid pressure and opened by a spring or vice versa.
Patent GB-722771-A (GB)
Title: Free-flowing starch powder
IPC: C08L3/02
Filed: 1952-10-30
Abstract: A thermosetting silicone resin used for coating starch (see Group V) may be in the form of a liquid having a low viscosity, e.g. from 10 to 20 centistokes at 25 DEG  C., and may be diluted with a low-viscosity inert solvent, e.g. naphtha, petroleum ether, carbon tetrachloride or ethylene dichloride.  From 1.4 to 3 per cent by weight of a catalyst, e.g. a zinc salt of octanoic or caprylic acid, may be added to the resin to accelerate setting. Linear polysiloxanes having the formula <FORM:0722771/IV (a)/1> may be used.ALSO:In making a free-flowing starch powder, starch particles, e.g of a size not larger than 50 microns, are coated, e.g. sprayed, with a thin film of a thermosetting silicone resin in an amount from 0.03 to 0.15, preferably from 0.06 to 0.10, per cent. of the weight of starch, and the coated particles are then heated to set the resin.  The resin may be a liquid having a low viscosity, e.g. from 10 to 20 centistokes at 25 DEG C., which may be diluted with a low viscosity inert solvent, e.g. naphtha, petroleum ether, carbon tetrachloride or ethylene dichloride.  From 1.4 to 3 per cent. of a catalyst, e.g. a zinc salt of octanoic or caprylic acid, may be added to the resin to accelerate setting.  The coated particles may be heated until they contain less than 2 per cent. of moisture.  The coated and heat-treated particles may be lubricated with from 0.05 to 0.10 per cent. of their weight of a dry, powdered, non-caking, non-hygroscopic, inorganic salt, e.g. magnesium carbonate or tricalcium phosphate.
Patent GB-271332-A (GB)
Title: Method and apparatus for determining, indicating and recording the calorific value of liquid and gaseous fuels
IPC: G01K17/02
Filed: 1926-11-03
Abstract: 271,332. Morehead, J. M. Nov. 3, 1926, Calorimeters.-The calorific value of liquid or gaseous fuel is determined by burning a measured quantity of the fuel, transferring the heat of combustion to a body of liquid maintained at its boiling point, and measuring the quantity of liquid evaporated. The fuel passes through a meter A and is ignited at a burner B the heat of combustion being transferred to the liquid in a boiler C surrounded by a jacket D. The liquid is maintained at its boiling point by a burner 3. Water is supplied to the jacket D by a pipe 1 from the tank 2 of the condenser T, and the boiler is replenished with water at the boiling point from the jacket D through orifices 6. The water evaporated by the combustion of the fuel passes along a pipe 8 to a coil 9 of the condenser and thence into a measuring-tube 16, and the products of combustion pass along a pipe 11 to the coil 12 and may also be measured by opening the cock 21 if the total calorific value is required. The measurement of the rate of evaporation may be effected by allowing the condensate to escape through a small orifice 18 and measuring the steady height in the tube 16, and a record can be obtained by allowing the head of water to operate a recording pressure gauge 20.
Patent GB-1018871-A (GB)
Title: Improved retractable and steerable undercarriages for aircraft
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: B64C25/50
Filed: 1961-07-29
Abstract: 1,018,871. Steering aircraft nosewheels- DOWTY TECHNICAL DEVELOPMENTS Ltd. Aug. 27, 1962 [July 29, 1961 (2)], No. 27615/61 and 27616/61. Heading B7H. A steerable aircraft nosewheel mounting comprises a main support member arranged for pivotal movement about trunnion bearings which form a transverse retraction hinge in the aircraft, a wheel carrying leg mounted in the main support member for steerable turning movement, and one or more steering motors housed in that part of the main support member which extends between the trunnion bearings. As shown, a pair of nosewheels 18 is mounted on a shaft 17 carried by a tube 16 of a shockabsorbing leg 15 pivotally but not telescopically mounted in a housing 14, the upper part of which carries trunnions 12 and 13 for retraction of the wheels. The tube 15 carries at its upper end a pinion 22 meshing with gears 25 and 26 carried by the shafts of hydraulic motors, which each may comprise a shaft 28 carrying vanes working between fixed abutments 32 in a cylindrical bore formed in the housing. The motors are actuated in parallel from a known form of servo control.
Patent GB-685088-A (GB)
Title: A dispenser for dental implements
IPC: A61C19/00
Filed: 1950-11-13
Abstract: 685,088. Dental instruments. BERGENDAL, G. Nov. 13, 1950 [April 17, 1950; Aug. 31, 1950], No. 27671/50. Class 81 (ii). [Also in Group XVII] A device for cleaning dental instruments comprises a flat element of cardboard, metal, &c. 19 having notches in one end against which the instruments are drawn for cleaning. The devices are carried in dispensers (see Group XVII) from which they are projected for use singly and are held clamped in the projected position for use, and for withdrawal by hand when used.
Patent GB-887701-A (GB)
Title: Processes for the preparation of benzo-1:3-thiazinediones-(2:4)
IPC: C07D279/04
Filed: 1958-08-28
Abstract: The invention comprises compounds of the general formula <FORM:0887701/IV (b)/1> p  (where R1 represents a hydrogen atom or a substituted or unsubstituted alkyl, aralkyl, aryl or amino group and R2 represents a hydrogen or halogen atom or an alkyl group) whenever prepared by reacting a compound of the formula <FORM:0887701/IV (b)/2> (where R represents a hydrogen atom or a carbalkoxy, carbaralkoxy or carbaryloxy group), in an aqueous solvent in the presence of an inorganic base, with an anhydride forming derivative of a carboxylic acid to yield a mixed acid anhydride which is then reacted with an amine R1NH2, or modifications of this process such as (1) reacting a compound of the formula <FORM:0887701/IV (b)/3> with phosgene, R.6CO.X or (R6O)2.CO (where R6 represents an alkyl, aralkyl or aryl group and X represents a chlorine, bromine or iodine atom) in an aqueous solvent in the presence of an inorganic base, or (2) reacting a compound of the formula <FORM:0887701/IV (b)/4> with a carboxylic acid halide forming agent and then with R1NH2 in an aqueous solvent in the presence of an inorganic base, or (3) reacting a compound of the formula <FORM:0887701/IV (b)/5> with an aqueous solution of cyanic acid or an alkali metal cyanate or a solution of an organic isocyanate of the formula R1NCO or a carbamic acid halide of the formula R1NH.CO.X in an inert organic solvent to form a compound of the formula <FORM:0887701/IV (b)/6> which is then cyclised by dehydration using a chemical agent or heat, or (4) reacting a compound of the formula X above with cyanamide to give a compound of the formula <FORM:0887701/IV (b)/7> which is hydrolysed to the corresponding dione, or (5) reacting a compound of the formula X above with thiocyanic acid or an alkali metal thiocyanate or an isothiocyanate of the formula R1NCS or a thiocarbamic acid halide of the formula R1NH.CS.X to form a compound of the formula <FORM:0887701/IV (b)/8> which is oxidised to the corresponding dione, or (6) where R1 represents an alkyl, substituted alkyl or aralkyl group by reacting an alkali metal salt of the compound of the formula I above, where R1 represents a hydrogen atom, with an alkyl, substituted alkyl or aralkyl halide.  The products have antipyretic, bacteriostatic and fungistatic properties. Specification 887,700 is referred to.
Patent GB-1365742-A (GB)
Title: Window blind fitting
IPC: E06B9/42
Filed: 1972-11-08
Abstract: 1365742 Roller blinds L E J RAWSON and G W BRADBURY 8 Nov 1972 [14 June 1972] 27697/72 Heading A4B A roller blind 1 is provided at each side edge with a flexible beading 5 threaded through apertures 6 in the blind, each beaded edge being slidably engaged in a channel 3 with a restricted mouth 4 to prevent passage of light at the edges. The roller 12, which may be spring loaded, has reduced diameter ends 12a on which the beaded edge is wound. A metal strip 7 is engaged around the lower edge of the blind and is encased in an extruded member 9 which locates in an upwardly open channel (11) Fig. 4 (not shown) when the blind is pulled down.
Patent GB-766387-A (GB)
Title: Purification of picolines
Inventor: CRAVEN ERNEST CECIL
IPC: C07D213/06
Filed: 1954-09-25
Abstract: Picolines of improved purity are obtained from an "organic solvent extracted mixture of crude pyridine bases" by a method comprising distilling the mixture in the presence of added water and recovering the purified picolines from the distillation residue.  The "organic solvent extracted mixture of crude pyridine bases" is obtained by the extraction with a suitable solvent, e.g. benzene, of the crude mixture containing picolines and other pyridine bases obtained by reacting acetaldehyde or its polymers with ammonia.  The process may be carried out batchwise or continuously.  For instance, the mixture may be fed continuously to the mid-point of a fractionating zone and a small amount of water introduced into it; impurities together with water and some pyridine bases are removed from the head of the zone, condensed and allowed to settle into two layers.  The lower aqueous layer is returned to the zone with the water feed while the upper layer is discarded or separately treated for the recovery of bases. From the base product of the zone, a - and b -picolines may be separated from other pyridine bases by a conventional fractional distillation.  In another method the water feed to the distillation zone is first used to wash the vapours from the head of the zone and may also be used to wash the oil phase obtained by condensing the vapours.  In a further method the crude bases are first subjected to distillation; wet bases are introduced from a concentration zone into the head of the distillation zone; the overhead product from this zone is introduced into an intermediate point of a third zone from which the vapours are condensed and fed to a decanter into which the water feed is introduced to wash the oil layer which is then discarded; the lower aqueous layer is returned to the top of the third zone to produce an extractive distillation and the aqueous base product is passed to the concentration zone before being fed to the distillation zone.
Patent GB-599776-A (GB)
Title: An improved manufacture of lubricating greases
Filed: 1945-10-22
Abstract: The continuous process of the parent Specification, for making lubricating grease by mixing mineral lubricating oil and soap to form a slurry and diluting the slurry with additional mineral lubricating oil, is modified by preheating the oil used for dilution in order to provide a substantial part of the heat required for the subsequent grease cooking.  The preheating oil may contain all the heat necessary for the subsequent grease cooking or alternatively may contain a part only of the heat, the remainder being provided in the subsequent heating step.  The soap employed may be an aluminium or lithium soap and other addition agents such as antioxidants or thickeners may be incorporated in the slurry before dilution with additional oil.  In an example the slurry is made up of aluminium stearate, p-di-isobutyl phenol, heavy oil and a mineral oil solution of polybutene.  Apparatus for carrying out the process of making lubricating grease is described.
Patent GB-306572-A (GB)
Title: Improvements in pulley blocks
IPC: B66D3/10
Filed: 1928-09-28
Abstract: 306,572. Johansson, C. A. Sept. 28, 1928. Window appliances.- A pulley furnished with means for retarding the descent of the load and suitable for use as a fire escape, comprises a pendulum 5 pivoted at 4 near its lower end and coacting at its upper end with a guide 7 concentric with the pivot, and a starwheel 10 integral with the pulley 9 and coacting with a guide 11 having contact parts 12 concentric with the pivot 4 and a recess 13 of sufficient size to permit the turning of the wheel during the oscillations of the pendulum. The rope 16 is prevented from slipping by rollers 14, 15. Specification 6451/14 is referred to.
Patent GB-503922-A (GB)
Title: Improved appliance for playing the game of darts
IPC: F41J3/00
Filed: 1937-10-14
Abstract: 503,922. Dart boards. -ASTON, A. C. Oct. 14, 1937, No. 27912. [Class 132 (iii)] A flat dart board carries a plan of a miniature snooker-pool table with boundaries 3, 4. The positions of the various balls are indicated by metal rings 17 attached to the board by pins. The rings 17 defining the non-red balls 9-14 are enclosed in concentric rings 19, the outer spaces 20 being used as " snookered positions " A number of pins for " pinning off the balls are placed in the areas 5. The board is made of cork, bristle or rubber on a backing of wood, or of cork on a backing of asbestos, fibre or with an interposed layer of plywood. A hanger is attached to the back.
Patent GB-1183774-A (GB)
Title: Reciprocatory-Piston Compressor.
Inventor: GRAPER WILLIAM
IPC: F04B27/02
Filed: 1968-06-12
Abstract: 1,183,774. Bearings. EATON YALE & TOWNE Inc. 12 June, 1968 [1 Aug., 1967], No. 27942/68. Heading F2A. [Also in Division F1] In a reciprocatory-piston compressor, a double-acting piston 42 is driven by an eccentric 86 engaging with a transversely-slidable block 84, distribution of lubricant e.g. oil, issuing from passages 128 being rendered by intersecting grooves 130 in the faces of the block abutting bearing surfaces 134 in the piston. The passages 128 receive the lubricant from a bore 126 in the eccentric by way of an annular channel 136 in the block adjacent the eccentric.
Patent GB-860822-A (GB)
Title: Improvements in and relating to marine propulsion plant
Inventor: NORTON ERNEST
IPC: B63H23/00
Filed: 1953-10-12
Abstract: 860,822. Turbine plant. YARROW & CO. Ltd., and MASON, F. T. Sept. 23, 1954 [Oct. 12, 1953], No. 28007/53. Class 110 (3). In a marine propulsion plant comprising a steam unit and a gas turbine the latter is constrained to operate below maximum power. High and low pressure steam turbines 1, 2 (combined rating x s.h.p.) drive a propeller shaft 7 to which gas turbines 4, 5 (rating x/2 s.h.p. each) may be coupled sequentially through synchronous clutches 6, when the steam turbines become fully loaded. As one gas turbine reaches 70% power it is held there and the steam turbines throttled back as necessary. With both gas turbines in use the installation reaches 85% full power and the constraint is removed to enable the gas turbines to achieve full power. A further steam turbine 2b moves the craft astern. For emergency start with no steam the gas turbines are used. For emergency reversing the gear-box 3 incorporates a reverse gear and clutch, alternatively an additional gas turbine is employed.
Patent GB-1218765-A (GB)
Title: Toilet seat and cover unit
IPC: A47K13/26
Filed: 1968-06-12
Abstract: 1,218,765. Toilet seats and covers. CARRARA & MATTA S.p.A. 12 June, 1968 [14 June, 1967], No. 28032/68. Heading E1C. A toilet seat 1 and cover 2 are pivotally supported by mountings 8 bolted to the toilet bowl. Each mounting 8 has a T-sectioned slot 10 which receives a T-headed fixing bolt, and a wall 13 from which integral pivot pins e.g. 15 project horizontally into recesses in the seat and holes 7 in lugs 6, 6' integral with the cover. One and preferably both of the inwardly projecting pins 15 are elongate in cross-section and shaped to engage a groove 7a in the corresponding face of lug 6'. The seat and cover can be assembled by sliding them together in a generally co-planar arrangement which would not normally be achieved when the seat is in its working position.
Patent GB-1043539-A (GB)
Title: A process for treating ore
IPC: C22B1/22
Filed: 1963-07-16
Abstract: A mass of particulate ore e.g. limestone iron oxide, mill scale, is heat treated or sintered by being mixed with a finely divided solid fuel, optionally with a liquid binder, to provide approximately uniform distribution of the fuel and ore, charging the mixture into a gas-tight pressure vessel, injecting a free-oxygen containing oxidizing gas into the charge and thus burning the fuel under super-atmospheric pressure, exhausting part of the products of combustion with reduction of pressure, and repeating the cycle of injection and exhaustion until the desired heat treating or sintering is accomplished.  At this point, the product may be cooled, or a reducing treatment comprising the alternate injection of a reducing gas and withdrawal of any residual gas, may be performed on the heated mass until a desired degree of reduction is produced.  The preferred oxidizing gas is hot air, and the amount of fuel mixed with the ore is used to regulate the temperature achieved during the heat treatment, e.g. sintering temperature or below.  The liquid binder used may be water or a fuel oil.  The ore may be iron ore, when the complete process produces sponge iron.  Limestone may be mixed with the iron ore when it is charged into the pressure vessel.  If desired, the limestone may be arranged in layers or columns in the ore-fuel charge.ALSO:A mass of particulate ore, e.g. limestone, iron oxide, mill scale, is heat-treated or sintered by being mixed with a finely-divided solid fuel, optionally with a liquid binder, to provide approximately uniform distribution of the fuel and ore, charging the mixture into a gas-tight pressure vessel, injecting a free-oxygen containing oxidizing gas into the charge and thus burning the fuel under super-atmospheric pressure, exhausting part of the products of combustion with reduction of pressure, and repeating the cycle of injection and exhaustion until the desired heat treating or sintering is accomplished.  At this point, the product may be cooled, or a reducing treatment comprising the alternate injection of a reducing gas and withdrawal of any residual gas, may be performed on the heated mass until a desired degree of reduction is produced.  The preferred oxidizing gas is hot air, and the amount of fuel mixed with the ore is used to regulate the temperature achieved during the heat treatment, e.g. sintering temperature or below.  The liquid binder used may be water or a fuel oil. The ore may be iron ore, when the complete process produces sponge iron.  Limestone may be mixed with the iron ore when it is charged into the pressure vessel.  If desired, the limestone may be arranged in lavers or columns in the ore-fuel charge.