baber/WOPTO huggingface dataset:
Patent GB-1242026-A (GB)
Title: Improvements in hydraulic control devices of change-speed transmission
IPC: F16D25/0638
Filed: 1968-12-30
Abstract: 1,242,026. Friction clutch; multi-disc disc brakes; quick-response hydraulic actuation. REGIE NATIONALE DES USINES RENAULT AUTOMOBILES PEUGEOT. 30 Dec., 1968 [5 Jan., 1968], No. 61764/68. Headings F2C, F2E and F2F. The hydraulic apply pressure for a spring- released multi-plate friction clutch or brake 33 in a change-speed transmission, is supplied by a pump 1 through a valve 6 and line 9 and through a rotary seal 13 and passages 16 and 26 from an annular space 18 between shafts 17, 19, the space 18 being also supplied by the pump 1 via a restriction 45 to the lubrication system 42-44, and a passage 41 in the shaft 19 so that when the clutch or brake is disengaged, a low pressure is maintained in the cylinder and apply lines to ensure a fast response to engagement pressure, the low pressure being regulated by valve means actuated by the piston 22 and including a shutter, e.g. formed by ribs 28, 29 on the piston and cylinder, and a valve 38, which relieves the cylinder pressure and allows it to discharge into the transmission casing 12 through the valve 38. As shown, a diaphragm spring 30 disengages the clutch or brake, and valve 38 closes when a predetermined flow through the valve is exceeded, i.e. during clutch engagement. Again, Fig. 2 (not shown), the rib 29 is omitted, and a disc- or blade-type valve 38 formed in the piston. Also, Fig. 3 (not shown), both ribs 28, 29 are replaced by a spring shutter (50).
Patent GB-1284472-A (GB)
Title: Improvements relating to thermoplastic polymer compositions
Inventor: BOUTILLIER PIERRE EMILE
IPC: C08L25/04
Filed: 1969-12-30
Abstract: 1284472 Foamable polymer compositions UGINE KUHLMANN 30 Dec 1969 [30 Dec 1968] 63309/69 Headings C3C and C3P The expansibility of (A) a thermoplastic "styrene" homopolymer, "styrene"/"acrylonitrile" copolymer, "styrene"/butadiene polymer, or A.B.S. copolymer is improved by adding to it, before, during or after the addition of a foaming agent, 0À2 to 80 parts by weight per 100 parts by weight of the above copolymer, of (B), a thermoplastic "styrene" homopolymer, "styrene"/"acrylonitrile", "styrene"/methylmethacrylate copolymer, or a "styrene"/"acrylonitrile"/methylmethacrylate terpolymer, said polymer being compatible with the first polymer and having an average molecular weight which is higher than that of the first polymer, and is above 3 x 10<SP>5</SP>. 'Styrene" and "acrylonitrile" include substituted derivatives thereof and mixtures thereof with styrene and acrylonitrile respectively. The polymers may contain minor proportions of units of a cross-linking monomer. In the examples high molecular weight polymers (B) are prepared in aqueous systems in the presence of sodium bicarbonate as the expanding agent, which is incorporated into the polymer. These polymers are then mixed with polymers (A) which are polystyrene, high impact polystyrene, A.B.S. terpolymer, and styrene/acrylonitrile copolymer, the composition then being extruded or moulded, and foamed.
Patent GB-658125-A (GB)
Abstract: 658,125. Magnets. SANGAMO WESTON, Ltd, April 28, 1949, No. 11355. Convention date, Dec. 6, 1948. [Class 35] [Also in Group XXXVI] The magnetic system of a moving coil instrument consists of a core 20, Fig. 5, e.g. approximately rectangular, magnetized transversely, and having ribs 3 of non-magnetic material for positioning soft iron pole-pieces 21, Fig. 5, of segment shape and in close contact with the magnet 20. The assembly is positioned inside an annular soft iron ring 1, Fig. 2, to define an annular gap in which a moving coil 8 is positioned. One mounting rib 3, Fig. 5, is drilled at 22 to receive a positioning screw of non-magnetic material threaded into the ring 1, Fig. 2 ; the other mounting rib is drilled with a larger hole 24 to receive an iron positioning screw which also acts as a magnetic shunt for adjusting the sensitivity. The ribs may be cast on to the magnet, and the pole-pieces have a circumferential groove engaged by a closed or split ring, the magnet being forced into the prepared pole-pieces. The pole-pieces may be formed by a powdered metallurgy process or may be cut from stock.
Patent GB-2000567-A (GB)
Title: A method of joining pipes or like structures
IPC: F16L13/11
Filed: 1978-06-30
Abstract: A method of joining pipes or like structures involves overlapping surfaces on two members to be joined, injecting a curable synthetic resin composition between the overlapping surfaces through apertures in one of the members and curing the compositions. Either flexible or rigid joints may be formed: in the former case, the composition used is preferably a mixture of epoxy resin, finely divided silica and fumed silica.
Patent GB-2003446-A (GB)
Title: An easily openable container closure and method of making the same
IPC: B65D17/50
Filed: 1978-07-26
Abstract: An easily openable closure for a container of paper or thermoplastic resin material and comprising a cover sheet 11 having a openable or removable area 20, which is defined by a line of weakening formed by slots, indentations and/or perforations bridged and/or filled by an in situ formed strip of thermoplastics 27 having an integral pull-tab 30 for opening the container. Alternatively, a ring of holes in a cover sheet may be sealed by an in situ moulded thermoplastics strip having an integral pull-tab, Figures 17 and 18 (not shown). <IMAGE>
Patent GB-2027791-A (GB)
Title: Lifebelt clip
IPC: B63C9/22
Filed: 1978-08-08
Abstract: A retaining clip (2) is formed from a strip of resilient material bent into a loop having two parallel arms (4, 5) the free ends (7) of which are bent outwardly in a common plane for attachment to Ia board (3). The loophead (6) is formed with two retaining projections (10, 11), projecting in opposite directions, and several retaining clips (2) are attached to a board, in a circle, such that a lifebuoy (1) can be retained around or within the clips between the board and an outer (11) or an inner (10) set of the projections respectively, the two sets of projections being spaced from the board by different respective distances. The lifebuoy is locatable on or removable from the clips by resilient deflection of the arms. <IMAGE>
Patent GB-2007529-A (GB)
Title: Diesel Exhaust Filter with Flow Varying Capabilities
IPC: F01N13/02
Filed: 1978-08-10
Abstract: The invention relates to a filter for treating a hot exhaust gas stream carrying combustible particles, which filter can be rejuvenated at a controlled rate to avoid excessive temperatures in the filter. The filter includes two reaction zones (19 and 21) in the flow path of the exhaust gas and flow diverter means (22) positioned to direct flow through the zones in succession. The flow diverter means (22) is adjustable in response to a predetermined variation in the gas stream to pass only a minority of the hot gas through the first zone (19) to rejuvenate the zone in a controlled fashion, the remainder of the flow passing directly to the second zone (21). The filter is particularly practicable for use in treating exhaust gas from Diesel engines. <IMAGE>
Patent GB-2028413-A (GB)
Title: Bag Fasteners
IPC: B65D33/16
Filed: 1978-08-22
Abstract: The invention provides a closure fastener for plastic bags, comprising a plate formed with a central hole having radial slots 14 opening from the hole so that the mouth of the bag may be gathered into a bundle and pushed through the hole, with accompanying deflection of the material 24 of the plate lying between the slots. <IMAGE>
Patent GB-2004351-A (GB)
Title: A high pressure gate valve with preloaded, stacked, solid lubricated stemseals
IPC: F16K41/14
Filed: 1978-09-07
Abstract: A high pressure gate valve having at least one pressure actuated stem seal assembly is disclosed. Each seal assembly includes two sets of, e.g., four, metal rings 208 to 2111 with an elevated temperature resistant and chemical resistant ring 213 of solid lubricant, e.g., tetrafluoroethylene or graphite, separating the metal rings. Each metal ring is softer than the stem 45 and is of rectangular cross-section. The seal assembly is actuated by pressure on larger follower metal rings 217, 219, 221, 229. The seal assembly may also include a biasing spring 205. Each seal assembly is disposed in a stuffing box in the adjacent part of the valve body extending around the stem which is closed by an annular packing gland 63 screwed into the stuffing box far enough to flatten out the lubricant ring 213 sufficiently to seal as shown in Figure 2B. <IMAGE>
Patent GB-2011091-A (GB)
Title: Method and apparatus for calculating turbine inlet temperature
IPC: G01K13/02
Filed: 1978-10-23
Abstract: Turbine inlet temperature is calculated in terms of combustor inlet temperature, combustor inlet pressure, fuel flow into the combustor, and flow area of the turbine inlet by applying the formula:   <IMAGE>  where  T4 = the total temperature of the gases at the inlet to the turbine; T3 = the total temperature of the gases at the inlet of the combustor;  Wf = the weight flow of fuel into the combustor;  PS3 = the static pressure at the inlet to the combustor;  A4 = the flow area of the inlet to the turbine; and k1, k2, k3 and k4 = constant coefficients which are calculated for a particular engine design by the use of an iterative process. The formula is evaluated in the circuit shown, an output 58 of the circuit controlling the fuel feed so as to control the turbine inlet temperature. <IMAGE>
Patent GB-2009323-A (GB)
Title: An arrangement for starting the operation of a cushioned-piston jack
IPC: F15B15/22
Filed: 1978-11-13
Abstract: A jack includes a cushioned piston 2 having a buffer ring 6 which cooperates, at the end of the stroke, with a bore 30 in the end 3 of the jack cylinder 10 to create a buffer chamber 20, a valve 7 located in the ring 6 providing communication between the bore 30 and the buffer chamber 20 when the bore 30 is pressurized thereby to start the jack rapidly, said valve preventing communication between the buffer chamber and the bore 30 when the pressure rises in the buffer chamber at the end of the piston stroke. <IMAGE>
Patent GB-2007719-A (GB)
Title: Production of sintered steel strip
IPC: B22F3/24
Filed: 1978-11-15
Abstract: The invention relates to the continuous production of steel compacts in strip form from as-atomised stainless steel powder. A porous green compact of stainless steel powder having a carbon content not exceeding 0.06% by weight is through-carburised to raise its carbon content to a level in excess of that required in the product and then subsequently heat treated in a reducing atmosphere to promote chemical reaction between the carbon and oxygen present in the compact to reduce the former to a level not exceeding 0.03% by weight and the latter by a factor of two. Through-carburising and reduction may be effected in successive zones 2, 3 of a continuous floatation furnace 1. <IMAGE>
Patent GB-2011466-A (GB)
Title: Desulfurising coal
IPC: C10L9/02
Filed: 1979-01-03
Abstract: The sulfur content of coal is reduced by:   (1) contacting coal particles with (a) a silicate selected from the group consisting of alkali metal silicates, alkaline earth metal silicates, and mixtures thereof and optionally (b) a promoter material capable of oxidising or reducing equilibrium sulfur reaction products formed by the contacting to non- equilibrium reaction products, in an aqueous medium to reduce the sulfur content of the coal; and (2) recovering coal particles of reduced sulfur content. The promoter material may be air oxygen, hydrogen peroxide, alkali metal sulfites, alkaline earth metal sulfites, hydrogen, carbon monoxide, potassium thiosulphate, sodium thiosulphate and alkali metal polythionites o
Patent GB-2014749-A (GB)
Title: Tomosynthesis of sectional images of a three-dimensional object
IPC: A61B6/02
Filed: 1979-01-19
Abstract: In a method of tomosynthesis of a body section, a body 51 is irradiated from different directions 44, 45, 46 to form a composite multiperspective image 50. A selected layer is tomosynthesised by multiple superposition 63, 64, 65 of the composite image 57, with appropriate lateral displacement related to the multisource geometry 43, on a display screen 68 so that corresponding image points relating to the selected layer in each of the component perspective images are aligned. it is desirable, e.g. to reduce dosage, to convert and intensify the composite image 50 in an image relaying system 49, 55, 56 but this can introduce image distortion (Figure 3 not shown) which reduces the definition of the resultant tomosynthesised image. The improvement comprises using a diaphragm with pinhole aperture located in the object region to form a point image of the radiation source group 43 on the input screen 48 of the image relaying system, and employing the corresponding output point image to correct the image- forming process, for example by correcting the multiple image superposition process. Thus when using an image multiplying point hologram 64, the point hologram can be formed using the output point image. Alternatively a multi-lens projector can be set up using the output point image so that for a selected layer corresponding to the position of the diaphragm, all the point images are made to coincide in the superposition region. In a further alternative of electronic synthesis, the layer dependant shift signals are corrected using the output point image in a similar manner. <IMAGE>
Patent GB-2039885-A (GB)
Title: N-phenyl-N'-acyl-S- alkylisothiocarbamides
IPC: C07C335/38
Filed: 1979-01-19
Abstract: Novel N-phenyl-N'-acyl-S- alkylisothiocarbamides of general formula   <IMAGE> wherein R1 and R2 are hydrogen, halogen, nitro or alkyl, R3 is alkyl or aryl and R4 is alkyl or aralkyl and which are useful starting materials in the production of anti-hypertensive 2- (phenylamine)-imidazolines-(2) are prepared by reaction of N-phenyl-N'-acylthiocarbamides of general formula   <IMAGE> with the requisite alkyl or aralkyl halide under basic conditions.
Patent GB-2040672-A (GB)
Title: Improvements in or relating to show cases
IPC: F16B12/30
Filed: 1979-01-25
Abstract: A show case is formed of a plurality of channel section frame members 2, 9, 13, 19 connected together by connecting members comprising two parallel spaced steel plates having registering portions which pass into the channels of the frame members and which are then urged apart by screws engaged in respective threaded holes formed in one plate with their tips abutting the other plate. Panels, shelves etc. are fitted to complete the show case. <IMAGE>
Patent GB-2042911-A (GB)
Title: Wind-up Toy
IPC: A63H33/22
Filed: 1979-03-09
Abstract: A toy comprising a casing 2 which is provided with a viewing aperture like a television set. The aperture is optionally covered by a transparent screen 6 and behind it is a flip over display 8 actuated by a clockwork mechanism. The flip over design 8 comprises a plurality of substantially rectangular leaves bearing pictures and the like which flip over one another in sequence. The clockwork mechanism driving the display may be provided with an on- off switch 12 which projects from the casing. <IMAGE>
Patent GB-2045934-A (GB)
Title: Bourdon gauge with overload facility
IPC: G01L7/04
Filed: 1979-03-20
Abstract: A bourdon gauge is characterised in that if, in use, the pressure-indicating pointer (18) reaches its designed on full-scale deflection (FSD) but the pressure experienced by the bourdon tube (11) continues to increase, the flexing end (11b) of the tube is automatically freed from its driving connection to the pointer (18) and remains free to flex without driving the pointer; and when the pressure subsequently falls back to the FSD value, the driving connection (12, 13, 16, 17) between the tube (11) and the pointer (18) is automatically re-established. The linkage includes a two part link (12) maintained fully extended by springs (24). When overload occurs the pointer abuts a stop (23) and the tube compresses the parts of the link together against the springs. <IMAGE>
Patent GB-2017575-A (GB)
Title: Self-Crimping Yarn Process
IPC: D01D5/32
Filed: 1979-04-03
Abstract: In melt spinning, a first elemental stream with extensional flow derived by passage through a conical opening 22 in the spinerette plate 20 is merged with a second elemental stream with shear flow derived by passage through a circularly cylindrical counterbore 24 and a circularly cylindrical orifice 26, the two streams being combined at the same velocity at a point below the spinerette face 20, and the resulting combined stream is quenched into a filament. The filament is either immediately drawn or spun at a sufficiently high spinning speed, yielding an oriented textured filament. <IMAGE>
Patent GB-2026861-A (GB)
Title: Pharmaceutical compositions containing 5-methyl-7-diethylamino-S- triazolo (1,5-a) pyrimidine
IPC: C07D487/04
Filed: 1979-05-30
Abstract: Pharmaceutical compositions preferably in unit dosage form containing 5-methyl-7-diethylamino-S-triazolo (1,5-a)-pyrimidine (Trapidil) are used in the promotion of coronary collaterals in a mammal, for the lowering of blood pressure, the lowering of serum cholesterol, and for the inhibition of the edamatous reaction in the arteries of said mammal.
Patent GB-2024049-A (GB)
Title: A foam-generating device
IPC: B05B11/02
Filed: 1979-06-25
Abstract: Foam-spraying apparatus comprises a pump (10) for drawing a foamable liquid from a container 21 and spraying it through an atomizing nozzle (14), there being a screen (21) in the path of the spray, and air being introduced into the spray upstream of the screen so that the spray forms on the screen. The screen size is preferably 100 to 180 mesh (U.S. Sieve Series). The screen (21) may be carried by a diverging member (20) into which air is drawn through that part of the screen surrounding the part on which the spray impinges; alternatively air may be drawn in through openings (25), (35), Figs. 3, 4 (not shown). The apparatus is particularly suited for spray-foaming liquid cleaners. <IMAGE>
Patent GB-2035276-A (GB)
Title: Dispensing closure
IPC: B65D47/30
Filed: 1979-10-16
Abstract: Closures in which a spout is movably mounted on a cap or related structure so as to be capable of being moved between an open position, in which a passage through the spout is aligned with an opening through the cap, and a closed position, in which a portion of the spout closes off this opening, are improved by constructing the cap so that the portion of the cap immediately around the opening is shaped as a washer spring (40) and by constructing both the cap and the spout so that this spring resiliently biases a sealing surface (44) against the spout (14). <IMAGE>
Patent GB-2038377-A (GB)
Title: Circular Knitting Machines
IPC: D04B9/02
Filed: 1979-12-05
Abstract: The present device for continuously changing density in circular knitting machines for manufacturing hosiery goods, comprises a lever arm, on which is mounted the pushing pawl, for turning the cam to control the density and associated with this lever a locking lever with a steplike end, said locking lever being controlled from the timing device of the machine via a mechanical transmission to control the density control. <IMAGE>
Patent GB-2063704-A (GB)
Title: Dialysis unit
IPC: A61M1/16
Filed: 1979-12-05
Abstract: A dialysis unit is arranged to operate on a batch principle to enable a compact transportable unit to be produced. The unit automatically prepares a batch of dialysate fluid and circulates the fluid a predetermined number of times. While a first batch is being used a second batch is automatically prepared and stored ready for automatic switch- over from the first to the second batch. A mixing and storage tank 20 is fed with metered quantities of dialysate concentrate and deionised and heated water. The resulting batch of dialysis fluid is fed by valve 28 into a circuit including a dialyser unit 37 and a recirculation container 25, the fluid passing through the dialyser and collecting in container 25. The collected fluid is then circulated through the dialyser a predetermined number of times before being led to waste outlet 31a. When container 25 is empty, a fresh batch of fluid is introduced into the circuit from tank 20. <IMAGE>
Patent GB-800087-A (GB)
Abstract: 800,087. Casting machines. NATIONAL LEAD CO. July 5, 1956 [July 29, 1955], No. 20849/56. Class 83 (1). In die-casting apparatus, trimming-stations are horizontally positioned on opposite sides of the casting-station, and a casting is produced at said casting-station while the previously-cast casting is simultaneously trimmed at one of said trimming-stations. The die assembly comprises a carrier bar 10 which is movable toward and away from the cover die 12 with movement of the ejector die 14, and is also movable transversely for transporting a casting from the casting station alternatively to one of the trimming-stations 36, Fig. 18, which each comprise a trimming die 38, stripper plate 42 and trimming punches 40. Molten metal is forced into the die cavity through a passage 22 and around a sprue plug 24 which supports the casting during its movement to the trimming- station. Ejecting pins 28 in the vicinity of the sprue plugs 24 eject the gate from the sprue plug after the cast pieces have been trimmed.
Patent GB-2045105-A (GB)
Title: Hydrocarbon hydrocracking catalyst and process
IPC: C10G47/16
Filed: 1980-03-17
Abstract: An improved hydrocarbon hydrocracking catalyst comprises:   (A) a porous amorphous matrix comprising an alumina-silica, alumina- silica-titania or alumina-silica-zirconia polygel, said polygel having an alumina-to-silica weight ratio in the range of from 0.2-20 to 1; (B) a hydrogenation component consisting of (1) nickel, cobalt, or nickel and cobalt, in an amount, calculated as metal, in the range from 1 to 10 weight percent of said matrix, and (2) molybdenum, tungsten, or molybdenum and tungsten, in an amount, calculated as metal, in the range from 5 to 25 weight percent of said matrix, said component being (1) in the form of one or more of the metal, oxide and sulfide and (2) dispersed through said matrix; and (C) a finely divided crystalline aluminosilicate zeolite component substantially in the ammonium or hydrogen form, said zeolite being (1) substantially free of said hydrogenating component and (2) dispersed through said matrix, said zeolite component being of the ZSM-5 type.   The catalyst can be employed in a hydrocracking process in which it is contacted in a reaction zone with a hydrocarbon feed containing substantial amounts of materials boiling above 95 DEG C and selected from petroleum distillates, solvent-deasphalted residua and shale oils, in the presence of hydrogen under hydrocarbon hydrocracking conditions. The hydrocarbon feed should advantageously have an organic nitrogen content of less than 50 ppmw.
Patent GB-2054251-A (GB)
Title: Separators for lead acid accumulators
IPC: H01M50/491
Filed: 1980-05-14
Abstract: A process of manufacturing separators comprises making a sheet of cellulosic fibres and polyethylene fibrils in particular proportions. Spacers (f) in the form of filaments of low-density polyethylene are deposited on the sheet (d) and heated to melt the fibrils on a cylinder (B). The spacers are then pressed onto the sheet by an idler roller (P) to yield a separator (h). <IMAGE>