baber/WOPTO huggingface dataset:
Patent GB-615274-A (GB)
Title: Piston for internal combustion engine
IPC: F16J1/08
Filed: 1946-07-26
Abstract: 615,274. Pistons. OSBORNE, W. July 26, 1946, No. 22368. [Class 122 (i)] A piston for an internal combustion engine, is provided with an oil-holding recess 9, in one or both of its two thrust sides, for equalizing piston-ring wear, keeping the piston running straight and maintaining the motor at a cool temperature. The recess is deeper and wider at the end towards the skirt and its upper and lower edges are undercut to form lips. An oil elevator groove 15 serves to lift the oil upwardly and to distribute it evenly over the cylinder surface whilst a groove 20 is provided in the piston head for the collection of carbon which might otherwise collect behind the piston rings 27. Compression ring grooves 23 are in communication with the interior of the piston and the crank-case by vacuum relief holes 26 which allow oil to drain to the crank-case when the engine is not in operation.
Patent GB-262509-A (GB)
Title: Improved automatic apparatus for supplying steam and lubricant to engine cylinders
IPC: F01B31/10
Filed: 1925-09-09
Abstract: 262,509. Wood, R. Sept. 9, 1925. Auxiliary steam supply for idle running.-Apparatus for supplying lubricant to locomotive and winding- engines, and auxiliary steam to prevent the formation of a vacuum when running idle with the main supply cut off, comprises a fluid-operated piston valve the head C of which controls the steam supply and ported grooves and passages in the stem c<1> thereof controls the lubricant supply. The inlet D is connected to the main steam supply on the boiler side of the main regulator, and the outlet E is connected to the engine cylinders generally through the main steam pipe leading to the valve casing. The inlet K is connected to the pipes supplying the engine cylinders, and supplies steam to control the valve-actuating piston H when the main regulator is open. The space h<6> is connected to atmosphere or a source of uniform pressure. The piston H is acted upon by a spring h<9>, and a second spring c<3> is usually arranged between the piston H and the valve spindle c<1>. A bore c<4> in spindle c<1> is partly or wholly closed by a plug c<6>, and has radial ports p<1>, p<2>, q<1>, q' communicating respectively with pairs of grooves P<2>, P<1>, Q<2>, Q<1> and steam supply ports r<2>, R which are opened or closed respectively according to the position ot the head c. The bore mav also be supplied with steam from chamber d<1> in the closed position through longitudinal ports not shown. Lubricant is supplied to the apparatus through unions f<1>, f<2>, g<1>, g<2> connected to a pump and head of oil respectively and passes by means of the grooves to the cylinders by means of pipes connection to the unions f<3>, f<4>, g<3>, g<4>. In the position of the apparatus shown in Fig. 2, the piston H is moved to the left by a spring h<9> and the valve to the left by the steam pressure from the supply D, the engine main supply connected to the inlet K being cut off. The auxiliary steam passes to the engine through passage E and through passages R, valve bore c<4>, and radial passages p<1>, q<1> into the stream of lubricant passing through passages F<1>, G<1>.
Patent GB-1145575-A (GB)
Title: A metallic laminate of enhanced fracture toughness
IPC: B32B15/01
Filed: 1966-05-20
Abstract: 1,145,575. Metallic laminate. UNITED STATES ATOMIC ENERGY COMMISSION. 20 May, 1966 [14 June, 1965], No. 22521/66. Heading E1K. A metallic laminate of enhanced fracture toughness comprises a plurality of laminae of a single metallic material, the laminate having an overall thickness which is substantially greater than the thickness range in which the fracture toughness of the metallic material of which the laminae are made is at or near a maximum, each of the individual laminae having a thickness which lies within the range in which the characteristic fracture toughness versus thickness property of the metal exhibits an optimum value, the laminae being disposed in contiguous face-to-face relation, and bonding means joining the laminae together. In the graph of Fig. 1 fracture toughness of two materials (a) and (b) is plotted against thickness of the material, each graph showing a point of maximum fracture toughness and a limit G 1c  (a) or G 1c  (b) to which the fracture toughness tends as the thickness of the meterial increases. The range of enhanced fracture toughness Ra or Rb is defined as extending between the thickness values at which the fracture toughness is intermediate the maximum fracture toughness and G 1c . The laminae may be of metal having a thickness in the range 0.01" to 0.2", and may be bonded together by adhesive, e.g. a catalyzed epoxy resin, brazing, spotwelding or riveting. The structural members may be punched from a larger laminate. In one example the sheets are of alloy comprising 92.5% titanium 5% aluminium and 2.5% tin by weight and are 0.062" thick. Six such sheets are bonded together by inserting 2 mil thick braze alloy foil comprising 92% silver, 7.5% copper and 0.5% lithium by weight, between the titanium alloy sheets, placing the assembly in a stainless steel envelope, evacuating the envelope to press the sheets together, placing the envelope in a furnace to braze the sheets together, and air cooling under vacuum. In a second example the sheets are of 18% nickel managing steel and are assembled as for example I. In this example however the sheets are reheated after cooling to austenitizing temperature and then air cooled. In an alternative method the braze alloy is 63% copper, 22% manganese, 10% cobalt, and 5% nickel by weight. The laminates may be used as structural beam members or in submarine hulls.
Patent GB-1001003-A (GB)
Title: Preparation of beryllia fibres
IPC: C04B35/622
Filed: 1962-06-12
Abstract: Beryllia fibres are made by forming fibres, preferably by extrusion, from a paste-like mixture comprising calcined beryllia of less than 325 mesh and a temporary binding agent for setting the fibres, in the ratio, by dry weight, of BeO to binding agent of 1: 1 to 5: 1, setting the fibres and firing to provide sintered fibres.  The set fibres are preferably fired at 1000 DEG  to 1500 DEG  C. whilst supported horizontally and then are fired at 1800 DEG  to 1900 DEG C. whilst suspended vertically.  The binding agent is preferably a polymeric organic binding agent, e.g. an aqueous dispersion of polyacrylamide, and setting may be by drying or evaporation of the solvent, or by further polymerization.  A sintering aid of less than 325 mesh may be included in the paste-like mixture in amount up to 5% of the BeO. Suitable aids are Al2O3, MgO, SiO2 and mixtures thereof. The fibres are sintered on a refractory surface, preferably a plate of beryllia.
Patent GB-995348-A (GB)
Title: Improvements in or relating to a method of simultaneously producing low-silicon pig iron and high-alumina slag
IPC: C21C1/00
Filed: 1961-06-21
Abstract: A slag containing by weight 43.5-70% Al2O3, 2-10% SiO2, 28-45% CaO and O-1.5% FeO and/or Fe2O3, for producing a high-alumina cement, and a pig iron containing less than 0.3% Si are simultaneously produced in a furnace by charging it, in regular layers or in a homogenous charge, with coke and slagging materials poor in silica of total composition 20-65% Al2O3, less than 7% SiO2, 10-60% CaO, and 1-7% FeO and/or Fe2O3 some or all of which may be added as iron ore, preferably having particle sizes Al2O3 5-25 mm., CaO 5-15 mm. and coke 5-50 mm., maintaining a uniform temperature above 2000 DEG  C. in the blast area of the furnace by blowing hot air, with or without steam and/or added oxygen and/or liquid fuel, at a temperature of at least 600 DEG  C. through the charge, and separately discharging the molten slag and pig iron.ALSO:A slag containing by weight 43.5-70% Al2O3, 2-10% SiO2, 28-45% CaO and 0-1.5% FeO and/or Fe2O3, for producing a high-alumina cement, and a pig iron containing less than 0.3% Si are simultaneously produced in a furnace by charging it, in regular layers or in a homogeneous charge, with coke and slagging materials poor in silica of total composition 20-65% Al2O3, less than 7% SiO2, 10-60% CaO, and 1-7% FeO and/or Fe2O3 some or all of which may be added as iron ore, preferably having particle sizes Al2O3 5-25 mm., CaO 5-15 mm. and coke 5-50 mm., maintaining a uniform temperature above 2000  DEG C. in the blast area of the furnace by blowing hot air, with or without steam and/or added oxygen and/or liquid fuel, at a temperature of at least 600  DEG C. through the charge, and separately discharging the molten slag and pig iron.
Patent GB-982519-A (GB)
Title: Improvements in or relating to fluid pressure-operated devices for vehicle braking installations
IPC: B60T11/24
Filed: 1961-06-23
Abstract: 982,519. Fluid-pressure brakes. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. June 23, 1961 [June 24, 1960], No. 22772/61. Heading F2F. A fluid-pressure-operated device B for operation in combination with a compressed-air distributer A of a motor vehicle braking installation comprises at least one piston and cylinder assembly, the piston 40 of which is connected to the actuating member of the distributer, spring-loaded means acting on the piston 40 to urge the piston into a predetermined position against the action of fluid under pressure in the cylinder 42, and a pressure connection Fa between the chamber of the piston-cylinder assembly and an actuating device G arranged to supply fluid under pressure thereto so as to operate the distributer. As shown in Fig. 1, the distributer A has braking sections C 1 , C 2  and C 3  and an hydraulically or pneumaticallyoperated control device B, each control valve in each of the braking sections being constituted by a movable cup 14 under the load of a spring 16 acting on a piston 18 slidable in a chamber 20 connected through aperture D to one of the vehicle brakes or groups of brakes. Each piston 18 is under the control of a regulating spring 22 and is secured to a push rod 24 engageable with an inlet valve 26 urged on to the seating thereof by a spring 28 and arranged in a chamber connected through pipe fitting 32 to the compressed air reservoir of the braking installation. The piston rod 44 is connected to a push rod 10, of the distributer, to which is secured a guide sleeve 46 provided with a flange 48 bearing against a return spring 50. Operation of the foot lever 60 moves piston 58 of pump G to cause displacement of the piston 40 against the spring 50 whereby the distributer sections are actuated by the push rod 10 and a rocking lever 12 pivotally mounted thereon. Release of the lever 60 allows the spring 50 to return the piston 40 to the initial position thereof. In modifications, (a) there are two coaxially arranged pistons 40 in the cylinder 42 the operating chambers of the pistons each being connected to a pump G, (b) two pistoncylinder units 40, 42 are arranged in parallel, (c) the pump G is constructed for pneumatic operation and similarly to the distributer braking sections C 1 , C 2  and C 3 .
Patent GB-615174-A (GB)
Title: Improvements in composite metallic articles and method of forming the same
IPC: B23K20/227
Filed: 1946-07-31
Abstract: A compound metal article such as a bearing comprises a layer of aluminium upon which is electrically deposited a layer of iron subsequently soldered to a backing of steel.  The aluminium or aluminium alloy sheet is cleaned with pumice and then dipped into a boiling solution of 2.5 grams per litre chromic oxide and 90 c.c. per litre sulphuric acid.  It is rinsed and coated with oxide by immersion in a boiling solution of sodium carbonate and potassium dichromate in the proportion of .3 to 1.  It is again rinsed and then dipped in a solution of nitric acid.  The aluminium is then electroplated with iron in a bath of ferrous chloride and calcium chloride.  The steel backing is then bonded to the aluminium by soldering or brazing.  A foil of silver solder may then be interposed between the steel and the iron deposit and the parts united and shaped by heat and pressure in a single operation.
Patent GB-1386325-A (GB)
Title: Derivatives of polyene macrolide antibiotics
IPC: C07C245/16
Filed: 1972-05-16
Abstract: 1386325 Polyene macrolide antibiotics RUTGERS RESEARCH & EDUCATIONAL FOUNDATION 16 May 1972 [7 June 1971] 22802/72 Headings C2A and C2C The invention comprises an acid addition salt of a polyene macrolide antibiotic compound which consists of a macrocyclic lactone nucleus which is a long chain of carbon atoms closed by the lactone oxygen atom, all carbon atoms of the chain being linked to each other by single or double bonds, the majority of the carbon-tocarbon linkages being single bonds, the chain including a series of 4 to 7 conjugated double bonds and, as substituents, an ester group -COOR wherein R is methyl, ethyl or propyl; a primary amino sugar; a plurality of -OH groups; and one or more of the substituents, alkyl, hydroxylated alkyl, oxygen, epoxy and aryl amine. Suitable polyene macrolide antibiotics include amphotericin (see Fig. 1), candicidin, trichomycin, mediocidin and pimaricin (see Fig. 3). Esters of macrolide compounds are prepared by alkylating amphoteric polyene compounds containing free carboxylic groups.
Patent GB-1429723-A (GB)
Title: Refractories
IPC: C04B35/63
Filed: 1973-05-14
Abstract: 1429723 Refractory compositions ZIRCONAL PROCESSES Ltd 26 Oct 1973 [14 May 1973] 22897/73 Heading C1J A refractory powder-composition consists of a mixture consisting of two fractions, a first powder fraction consisting entirely of alumina powder, enitrely of mullite powder or entirely of a mixture of these, and a second powder fraction consisting of the powdered fusion product of either: zircon sand and calcined alumina; zirconia, silica and alumina; or zirconia or an alumino silicate. The mixture is incorporated with a binder, e.g. finely divided or gel silica or aluminium halohydrate, moulded and fired.
Patent GB-189520-A (GB)
Title: A new or improved holding-pin
IPC: D05B81/00
Filed: 1921-08-30
Abstract: 189,520. Myers, L. M. Aug. 30, 1921. Dress and like pins.-Pins, particularly for use in dressmaking, are made by passing pointed wires through holes 6 in a flat sheet of metal and beading up the sheet, as shown at 8, 5, on each side of the holes against the wire, and then bending the longer piece 5 over to form a tubular handpiece, which, with the aid of corks or plugs, can be used as a receptacle for pins.
Patent GB-166827-A (GB)
Title: Device for securing the springs of automobile vehicles
IPC: B60G11/113
Filed: 1920-08-04
Abstract: 166,827. Citroen, A. Aug. 4, 1920. Laminar springs.-For maintaining connection between a leaf spring and the supported vehicle in case of fracture of the main leaf, a second leaf 6 lying in contact with the main leaf 4 is passed loosely through the flange 5 which secures the spring to the axle 3 or other part, the flange being cut away to accommodate the leaf 6, which has projections 8, 8a to engage the lower portion of the flange if the leaf 4 breads.
Patent GB-615795-A (GB)
Title: A loom weighting motion
IPC: D03D49/08
Filed: 1946-08-02
Abstract: 615,795. Letting off warps, SPENCER, J. H. Aug. 2, 1946, No. 23048. [Class 142(ii)] The weighting motion described in Specification 611,655 has a cam H which depresses one end of a lever A and removes tension from the rope D and braking action from the weaver's beam F. The shaft G extends to the front of the loom. In a modification, one end of the lever A may be depressed through levers operated from the front of the loom.
Patent GB-753229-A (GB)
Title: Improvements in or relating to rotor blades for axial flow turbines, compressors or pumps
IPC: F01D5/30
Filed: 1953-08-21
Abstract: 753,229. Turbine, pump and compressor blades. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Aug. 21, 1953 [Sept. 6, 1952], No. 23170/53. Class 110(3) Ceramic rotor blades for an axial-flow turbine, pump or compressor are held in a peripheral groove in the rotor, the groove profile being circularly curved and the blade roots conforming to the groove profile, with a clearance between the roots and the groove which permits each blade to rotate to a small extent about two mutually perpendicular axes, one of which is directly axially with respect to the rotor, while the other is directed longentially with respect to the rotor. In a gas turbine rotor, Figs. 1 and 3, the root 4 of each rotor blade 3 is mounted in a circumferential slot 2 of the rotor disc 1, the radius of curvature r of the seating surfaces of the root being made smaller than the radius of curvature of the corresponding surfaces of the slot 2. The root 4 is convex where it makes contact with the root of the adjacent blade, the convexity being substantially on a level with the seating surfaces. This construction permits the blade 3 to pivot simultaneously both in the plane of the rotor and in a plane through the rotor axis. In a modification, Fig. 2, the root 14 of each alternate blade 13 is inserted in a U-shaped member 15, which may be of copper sheet, having beaded flanges 16. In an alternative construction, the root may be mounted in a sheath of, say, copper sheet, the root having two pairs of seating surfaces arranged according to Specification 703,905 to provide a temperature-independent connection between the root and the sheath. Specification 664,986 also is referred to.
Patent GB-1281149-A (GB)
Title: Method of electrophotography
IPC: G03G15/22
Filed: 1971-04-19
Abstract: 1281149 Electrophotography RANK XEROX Ltd 19 April 1971 [7 March 1970] 23182/71 Heading G2H The surfaces of a transparent insulative web 4 are oppositely charged by means of corona devices 7 and 8, the web is brought into contact with an earthed photo-conductive layer 3, and the photo-conductive layer is imagewise light exposed line-by-line while the surface of the web not in contact with the photo-conductive layer is subjected to a corona device 9 of a potential opposite in sign to that of the charge already on the said surface so as to form a charge image on said surface. The charge image may be developed on the web before or after stripping from the photoconductive layer. The photo-conductive layer may be subjected to uniform light exposure before stripping. The charge image may alternatively be developed after transfer to another surface. The photo-conductive layer may be exposed through a conductive web (as shown) or through a transparent conductive backing for the photo -conductive layer. The dark resistivity of the photo-conductive layer may be 10<SP>5</SP> ohm. cm for a contact time of 0.01 seconds. The web may be 10-100 microns thick.
Patent GB-1125286-A (GB)
Title: Improvements in or relating to tape controlled apparatus
Inventor: DARLOW TERENCE EDMOND
IPC: B41J11/44
Filed: 1965-06-01
Abstract: 1,125,286. Printer control. INTERNATIONAL COMPUTERS & TABULATORS Ltd. 31 May, 1966 [1 June, 1965], No. 23216/65. Heading G4H. A loop of tape is driven by a stepping motor which receives pulses from a perforated disc and photocell arrangement associated with the paper feed mechanism, so that the tape is driven in synchronism with the paper feed, and one track on the tape has perforations at positions corresponding to lines on the paper at which printing is to take place, the sensing of such perforations causing paper feeding to be stopped. Paper feeding may be resumed after completion of a printing operation. Other tracks on the tape may contain printing control instructions. In another embodiment, two tracks on the tape are used to control movement of a pen in two perpendicular directions, the lead screws for each direction each having a perforated disc and feeding pulses to the tape stepping motor through an OR gate. A further tape track may have perforations for actuating a solenoid to cause the pen to make marks on a sheet of paper.
Patent GB-1346965-A (GB)
Title: Fluid supply systems
IPC: B60P3/36
Filed: 1972-05-17
Abstract: 1346965 Water supplies V O KORHONENWESALA 17 May 1972 [17 May 1971] 23232/ 72 Heading E1X A fluid supply system, e.g. a water supply system for a caravan, comprises a pump 3 or a stop valve connected to a fluid supply conduit 1, a motor 2 for operating the pump or stop valve, and a sprung member 5 pressing against a resilient portion 4 of the conduit 1. The arrangement is such that when a device, e.g., outlet 9 for drawing of fluid from the system is operated, the sprung member 5 is adapted to move to actuate through a control circuit 7, 8 the motor 2 to operate the pump 3 or open the valve. In one embodiment of the system the member 5 normally is positively pressed against a resilient portion 4 of the conduit 1 to prevent fluid flow therethrough and is positively drawn away from the conduit. In a second embodiment the member 5 is so biassed against the resilient portion 4 of the conduit as to follow wall movement as the wall of the portion 4 moves in and out in accordance with fluid flow through the portion 4.
Patent GB-378647-A (GB)
Title: Process for obtaining and separating physiologically active substances from placenta
IPC: B41B7/00
Filed: 1931-08-19
Abstract: Hormone inducing precocious sexual maturity, free from oestrus-promoting hormone, is obtained from placenta by first treating this with a lipoid solvent such as acetone to remove the oestrus hormone and then subjecting the residue, after complete removal of any remaining solvent, to hydrolysis with dilute acid, dilute alkali, or under neutral conditions.  The hormone inducing precocious sexual maturity is recovered from the liquid so obtained, for instance by precipitating it by addition of a relatively large volume of alcohol.  The organic solvent containing the oestrus hormone is worked up in known manner.
Patent GB-1005497-A (GB)
Title: Plating attachment for knitting machine
Inventor: BOUTILLETTE EDWARD JOSEPH
IPC: D04B11/20
Filed: 1964-06-05
Abstract: 1,005,497. Knitting-machines. M. K. M. KNITTING MILLS INC. June 5, 1964, No. 23427/64. Heading D1C. A plating arrangement for a straight-bar machine comprises a main thread carrier 34 fixed to a carrier bar 36 and plating thread carrier 38 pivoted to the main carrier 34. The upper end of the carrier 38 is tensioned by a spring loaded cord 46 guided by rollers 48, 50 positioned approximately midway of the area to be plated. The tension imposed by the cord 46 causes the carrier 38 to trail behind the main carrier 34 during the initial movement of the carriers such that the sinker movement about the needles determines the position of the thread with respect to each other. Having determined the initial plating relationship the passage of the carriers past the midway position causes the cord to impose a pull on the carrier 38 in the opposite direction such that for the remainder of the course the carrier 38 leads the carrier 34. Because of the initial relationship of the yarns however the plating relationship for the remainder of the course is unaltered. The carriers are then traversed in the opposite direction with the carrier 38 initially trailing but subsequently leading with the result that the plating relationship of the yarns is continuously maintained. In the case of selvedge carriers the rollers 48, 50 are attached to the carrier end stops to ensure that the rollers maintain a substantially central position in relation to the plated selvedges.
Patent GB-325777-A (GB)
Title: Improvements relating to dough and like mixing machines
IPC: B01F15/00
Filed: 1929-07-31
Abstract: 325,777. Russell, R. July 31, 1929. Containers. - The bowl of a dough mixing machine is detachably secured in a supporting bow-member a by means of a fixed central abutment b and pair of pivoted handles c which cooperate with jaws g on the side of the bowl; the member a is carried by the frame of the machine. The handles c are under the influence of springs d and are turned through a right angle when the bowl has been placed in position. For supporting smaller bowls the member a is fitted with an adaptor having a gapped flange to engage the abutment b and handles c and having a similar abutment and handles to engage the parts of the smaller bowl.