baber/WOPTO huggingface dataset:
Patent GB-1227469-A (GB)
IPC: B01D17/02
Filed: 1968-11-20
Abstract: 1,227,469. Separating liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 20 Nov., 1968 [22 Nov., 1967], No. 55040/68. Heading BID. A pipe 12 through which a viscous liquid such as oil is pumped, separated from the pipe wall by a layer of less viscous liquid, such as water, opens into a settling chamber 11 in a vertical direction, and one or more guides 18 enable the two liquids to flow smoothly into their respective layers 14, 13. In Fig. 1 (not shown), the pipe is directed downwards, because that embodiment is intended to separate liquids of which the more viscous is also of greater density. The guide in Fig. 3 (not shown) has a central opening instead of coming to a point, and that in Fig. 8 (not shown) extends within the diverging pipe end. The conical guides turn the vertical flow smoothly into horizontal flow, but other arrangements (Figs. 5 to 7, (not shown) serve to retard the vertical flow by offering progressively greater areas of contact to the liquids as these flow further from the pipe end. Figs. 4 and 5 illustrate channels (25, 27) through which gas or hot viscous liquid may be injected, to assist separation by reducing the density of the, already lighter, viscous liquid and to reduce its viscosity to aid flow over the guide surfaces. Alternatively, guide surfaces could be heated. Fig. 10 illustrates an arrangement, just upstream of the settling chamber, whereby the water used to carry the oil through a pipeline is withdrawn through chamber 43 and then replaced by salt solution through chamber 40, to increase the density difference for better separation. Alternatively, Fig. 9 (not shown) illustrates a single chamber for injecting salt solution or colloidal clay into the water, to increase its density, or for' injecting carboxymethylcellulose, to increase its viscosity. If the viscous liquid is heavier, then the Fig. 9 arrangement could inject gas or a light emulsion, or the lighter liquid could be heated through the tube wall. Fig. 11 (not shown) illustrates a guide through which extends the drive of a vibrating assembly (49), which reduces the viscosity of incoming thixotropic liquid prior to separation.
Patent GB-1229471-A (GB)
IPC: B61B12/02
Filed: 1968-06-12
Abstract: 1,229,471. Cable railways. J. WYSSEN. 12 June, 1968 [14 June, 1967], No. 27917/68. Heading B7L. A cable railway comprises a carrier cable 123 with self-propelled carriages travelling thereon, each carriage being suspended from said cable by a pair of devices 1 consisting of a pair of carrying pulleys 21, 23 and a counter pulley 25, spring means being provided for resiliently bearing pulley 25 against the cable, and wherein a drive unit mounted on the carriage is connected with at least said counter pulley with the pulleys 21, 23 offset relative to the counter pulley in the direction of the cable. The counter pulley is slidable vertically in grooves 35 in a beam 9 and allowed limited axial movement on a keyway 50. Pulleys 21, 23 are mounted on a rocking beam 13 pivoted to beam 9 with each pulley supplied with a disc brake 33. Each device 1 of a carriage may be powered individually or they may both be powered by a single electric motor. The drive is supplied from the motor via chain wheels 78, 79 to a vertical endless chain 89 which is in contact with pulleys 99, 101, 103 keyed to the shafts of pulleys 25, 23, 21. A carrier 4 is rotatably suspended from beam 9 by a bearing tube 75 and a bracket 71 extending between the carrier and beam 4 supports chain wheels 78, 79. A compression spring 150 extends between the top of tube 75 and a bracket 39 carrying pulley 25 to prevent cable 123 being ejected laterally from the pulleys 21, 23, 25, a guard 109 is provided which is spring-loaded to its protecting position but may be raised against the spring when the carriage moves from one cable to another. Hydraulic, pneumatic or electromagnetic drive may alternatively be provided.
Patent GB-1230571-A (GB)
IPC: B65B31/00
Filed: 1967-02-15
Abstract: 1,230,571. Foam laminates. DUNLOP CO. Ltd. 14 Feb., 1968 [15 Feb., 1967; 4 Nov., 1967; 18 Nov., 1967], Nos. 7154/67; 3738/68 and 3748/68. Divided out of 1,227,760 and 1,230,378. Addition to 1,177,483. Heading B5N. [Also in Division B2] A flexible laminate comprises a compressed sheet of cellular plastics material (i.e. capable of remaining in the compressed state when the compressive force is removed) of substantially skeletal structure adhered to one surface of a tear-resistant fabric constructed so that the yams at right angles to the line of an applied tearing force form a del-shaped opening which spreads the load over a larger area. Suitable fabrics, e.g. nylon or polyethylene terephthalate, may have a twill, satin, matt or basket weave or a plain weave wherein every fifth warp yarn consists of two ends woven together. The cellular material may comprise natural or synthetic rubber, polyurethane, polyvinylchloride, polyethylene, polypropylene or polystyrene; it may be inherently skeletal due to its method of preparation or may be made by removing cell membranes from non-skeletal foam. Crimped or non-crimped fibres, e.g. of polyamide, cotton, wool or rayon, may be incorporated in the cellular material, in amount 1-30 parts by weight per 100 parts cellular material, during foaming or by vibration into the formed material. The compressed cellular material may be obtained with or preferably without the use of an adhesive: its thickness may be 0À005-0À1 inch and its density 0À02- 1-05 g./cm.<SP>3</SP> Bonding may take place by use of adhesive applied to one or both layers and light pressure from plates or rollers or by heat and pressure alone. Suitable adhesives are natural rubber, polychloroprene, modified styrene-butadiene rubber and polyurethane. The surface of the cellular material may be rendered adhesive by solvent-treating or melting. Flamebonding may be used, an intermediate sheet of cellular plastics material being present to act as a hot-melt adhesive. The laminate may be impregnated with a binder and coated with a synthetic resin (see Division B2). The compressed cellular material is preferably not impregnated if its density is above 0À85 g./cm.<SP>3</SP> Preferably a layer of tear-resistant fabric is sandwiched between a layer of compresesd cellular material and a further compressed or uncompressed sheet, e.g. a cellular polyurethane material or a non-woven layer, e.g. continuous nylon filament felt (optionally needled to a staple polypropylene fibre layer). The material may be embossed.
Patent GB-1232501-A (GB)
IPC: B23D33/00
Filed: 1968-05-10
Abstract: 1,232,501. Shearing. SCHLOEMANN A.G. 10 May, 1968 [11 May, 1967], No. 22238/68. Heading B3W. A shear comprising upper and lower cutter blocks, each block consisting of a blade mounted in a bolster, which are slid in and out of the shear saddles lengthwise has, at one end of the blades, a transfer device 1 of the same length as the blades and aligned with them and comprising at least two pairs of ducts 4 to accommodate cutter blocks 8, 8<SP>1</SP>, 5 and 10. The ducts 4 are formed one on each side of each of two blocks 3 welded to a rotatable shaft 2. Each cutter block is retained in a duct by a known quick release device 9. In use, one pair of ducts is aligned with the blades in the shear and used cutter blocks such as 5, 10 are run out into the ducts 4. The shaft 2 is then rotated to align the other pair of ducts so that blocks 8, 8<SP>1</SP> may be introduced into the shear. The shaft 2 is rotated in end bearings (11), Fig. 2, not shown. The bearing block adjacent the shear may be in a wall having apertures for the passage of the cutter blocks. The transfer device may be releasably secured to the shear and/or mounted on rails. The cutter blocks are run in and out of the shear by means of cables (17), (18), Figs. 2 and 3, not shown, each cable being attached to a bolt (19) resiliently and removably mounted in a recess (20) in the bolster of the cutter block. Alternatively a toothed rack extending along the entire length of each cutter bar co-operates with driven pinions on the shear and on the transfer device. Other transfer means suggested are a friction wheel drive and pneumatic or hydraulic stepwise drives.
Patent GB-1238897-A (GB)
IPC: F02K3/075
Filed: 1968-11-13
Abstract: 1,238,897. Gas turbine by-pass jet engines. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 13, 1968 [Nov.17, 1967], No.53797/68. Heading F1J. The invention relates to a gas turbine jet engine of the by-pass or ducted fan type in which means are provided to control the air flow from the LP compressor or fan to the main and by-pass flow paths, such means comprising an assembly of adjustable flaps pivotally mounted at the upstream end of the partition which separates the main and by-pass paths. The engine shown comprises an LP compressor or fan 30, a main flow path 1, defined in part by walls 21, 22, and a by-pass flow path 2 defined in part by walls 23, 24, there being pivotally mounted at the upstream end 22, 23 of the partition which separates the main and bypass paths, as assembly of flaps 13, 19. The flaps 13 which are driven flaps are pivotally mounted at 14 and are movable by means of actuators 28 through linkage 29, 18, 17, 16, the flaps being movable between the positions 13a and 13b indicated in broken lines. The flaps 19 are not driven but serve to inter-connect adjacent flaps 13. The flaps are of V-section, the flaps 13 comprising a reinforcing member (15) and the flaps 19 a reinforcing member (20).
Patent GB-1252787-A (GB)
IPC: C25D13/22
Filed: 1969-10-22
Abstract: 1,252,787. Luminecsent screens. INTERNATIONAL BUSINESS MACHINES CORP. 22 Oct., 1969 [22 Nov., 1968], No. 51787/69. Heading C4S. [Also in Division H1] A c.r.t. screen comprises glass substrate 10, thin transparent conductive coatings 12 and 16 and cataphoretically deposited phosphor layers 14 and 18 (e.g. green ZnCdS:Ag and blue ZnS: Ag). Further layers 20 and 22 may be included. A 5000 Š thick 30 to 40 # surface resistant tin oxide antimony doped conductive coating is preferably applied by chemical deposition by spraying on to a 425‹ C. heated screen (e.g. softlead glass) a tin chloride and antimony trichloride solution in a methanol base and in a water vapour atmosphere, then a four (Œ one) micron thick phosphor layre followed by a 400 to 500 Š thick indium oxide conductive layer formed by evaporating indium in water vapour and oxygen on to a 350‹ C. heated screen and a two (Œ one half) micron thick second phosphor layer. The screen is initially washed in detergent, soaked in chromic acid, water washed, soaked in ammonium bifluoride and re-washed. The cataphoretic phosphor deposition, may be from a two micron diameter particle suspension in ethyl alcohol or methyl-isobutyl ketone with 5% water and 10<SP>-4</SP> moles/litre of thorium nitrate or nitric or acetic acid, the vehicle dielectric constant being 30. The third conductive and phosphor layer may be 400 to 500 Š thick indium oxide and two (Œ one half) micron thick europium activated yttrium vanadate phosphor respectively, and may be surmounted by an ion burn resistant Al layer. Overall phosphor thickness of ten microns or less are disclosed as necessary for electron voltages of 18 kV or less. The first conductive layer may alternatively be indium oxide (surface resistance 150 to 200 #/ square), titanium oxide and Ag or Al may be vacuum evaporated for example and subsequently rendered transparent by glow discharge in air. A 1000 Š thick vacuum evaporated Al layer is rendered transparent after subsequent phosphor deposition by oxidation in air or in aqueous ammonium persulphate or anodization by citric acid. Tin, indium or titanium may be applied by vacuum deposition for the second and third coatings.
Patent GB-1252797-A (GB)
IPC: A61K8/26
Filed: 1969-05-30
Abstract: 1,252,797. Mica coated with bismuth oxychloride. MALLINCKRODT CHEMICAL WORKS. 30 May, 1969 [12 June, 1968; 10 Oct., 1968], No. 27648/69. Heading C1A. A pearlescent pigment consisting of fine platelets of mica coated with bismuth oxychloride, the bismuth oxychloride comprising 10-75% by weight of the pigment, is prepared by adding a base to an aqueous suspension of mica containing an excess of soluble bismuth salt and chloride ions whereby bismuth oxychloride is precipitated on the surface of the mica. The mica has a size from 10-100 microns, and preferably substantially completely passes a 325 mesh U.S. seive (10-40 microns) and the base is advantageously an alkali metal hydroxide or urea. The pigment may be dispersed in a cosmetic composition, e.g. eye shadow, lipstick, where they impart a translucent effect. In an example, a solution of 377 g. Bi(NO 3 ) 3 5H 2 O in 2240 ml. 5NHCl and 669 ml. HNO 3  is prepared, diluted with water and filtered to remove any precipitated bismuth oxychloride, and the filtrate mixed with 8À9 kg. of - 325 mesh mica and heated to 97-100‹ C. A further solution of Bi(NO 3 ) 3 5H 2 O, nitric acid and hydrochloric acid is added to the mica mixture over a period of 80 minutes. Ten minutes after the commencement of this addition, an aqueous solution of sodium hydroxide is added, also over a period of 80 minutes. After 15 minutes the mixture is cooled to 70‹ C. and the product collected by filtration.
Patent GB-1256778-A (GB)
IPC: G01R1/067
Filed: 1969-12-16
Abstract: 1,256,778. Probes. A. S. ERIKSSON. 16 Dec., 1969 [16 Jan., 1969], No. 61371/69. Heading H2E.  A test probe 1 comprises an insulating housing 3 containing a contact member 2 attached to a pressure member 10 by means of an offset portion-(-12, Fig. 3, not shown) on the member 2 engaging in a recess (11) in the pressure member 10. The end of the contact member 2 is formed with a spike 4 which has a hook 5 pivotally connected on it by a pin 6 for receiving a conductor 15 between the hook and the spike. When the pressure member 10 and attached contact member 2 are moved downwards against the action of spring 13 a cam surface 14 on the housing 3 co-operates with a notch 5α on the hook 5 to force the hook 5 away from the spike 4 to allow insertion of the conductor 15. The bared end 23 of a conductor 18 is clamped against the offset portion (12) of the contact member 2 by a plate 19 and insulating screw 25. The probe 1 may be connected via conductor 18 to a test wand assembly (29, not shown) and a recess (31<SP>1</SP>, Fig. 2, not shown) in the probe housing is provided to stow the test spike (28) of the test wand assembly.
Patent GB-1257740-A (GB)
IPC: C07C6/12
Filed: 1969-12-16
Abstract: 1,257,740. Xylenes. JAPAN GAS-CHEMICAL CO. Inc. 16 Dec., 1969 [17 Dec., 1968], No. 61124/69. Heading C5E. [Also in Division C1] HF/BF 3 /xylenes complex solutions, e.g. those obtained by extracting xylenes with HF and BF 3  to form a m-xylene rich extract or by disproportionating toluene in the presence of HF/BF 3  catalyst, are decomposed by heating under an absolute pressure of 2-30 kg./cm.<SP>2</SP> for 1-120 minutes in a multi-stage countercurrent gas-liquid contactor, a BF 3 -rich gas being withdrawn from the top of said contactor, and xylenes and substantially BF 3 -free liquid HF being withdrawn from the bottom of said contactor. The bottoms may be separated by settling into xylene and HF phases. A hydrocarbon diluent may be present during the decomposition, suitably n-hexane. The above decomposition process may operate simultaneously with xylene isomerization, the pressure being 3-30 kg./cm.<SP>2</SP> and residence time 5-120 minutes.
Patent GB-1258158-A (GB)
IPC: H01L21/285
Filed: 1969-06-13
Abstract: 1,258,158. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 13 June, 1969 [28 June, 1968], No. 29997/69. Heading H1K. To form at least one ohmic and one non-ohmic electrode on a semi-conductor body a layer of insulation is formed on the body, apertures simultaneously etched in it at the locations of all the required electrodes and the exposed semiconductor material differently treated to form the respective electrodes. In each embodiment a field effect transistor is formed on a 1 Á thick low resistivity N-type layer epitaxially grown on a high resistivity P-type silicon wafer. A surface layer of silica is formed by sputtering or oxidation and apertures etched in it using photoresist masking. In one embodiment a 50  layer of chromium is next deposited through the photoresist mask on the source, gate, and drain areas 1, 2, 3 (Fig. 1) and overcoated with 150  of nickel and 20  of gold. A photoresist mask is provided to expose only part of the source and drain area, upon which 30  of chromium, 300  of gold-antimony alloy and 10  of chromium are sequentially deposited. On removal of the photoresist heating at 500 C. alloys the antimony alloy with the silicon over the entire source and drain area. Finally the contacts shown are deposited conventionally and the transistor sputter coated with silica or other glass. In another embodiment chromium and gold-antimony layers are deposited first on part of the source and drain area and alloyed, following which pure gold is deposited overall. It forms a Schottky contact at the gate but fails to adhere elsewhere and is wiped off. A subsequent heating diffuses in gold to compensate the snow-plough effect. In a third embodiment after formation of the electrode apertures, a thin layer of oxide is reformed therein, whereupon the source and drain areas are etched clear and diffused with phosphorus. Finally the oxide is removed from the gate area and gold deposited to form a Schottky contact there and ohmic contact with the diffused source and drain. An alternative narrow gate configuration is shown in Fig. 4.
Patent GB-1258194-A (GB)
IPC: B01D9/02
Filed: 1969-06-27
Abstract: 1,258,194. Separating hydrocarbons. ESSO RESEARCH & ENG. CO. 27 June, 1969 [1 July, 1968; 11 Oct., 1968], No. 32688/69. Heading C5E. A liquid hydrocarbon mixture comprising nparaffins, isoparaffins or naphthenes and aromatics not forming complexes with urea or thiourea is separated by countercurrently contacting with a slurry of urea or thiourea under anhydrous conditions to form adducts and a liquid solvent comprising an ether alcohol, polyol, an acetic acid ester of glycerol, furfuryl alcohol, n-methylpyrrolidone, propylene carbonate, 1 piperazine ethanol or 2-chloroethanol for up to 30 minutes whereby an equilibrium is established and the solvent extracts at least a portion of the aromatics, the solvent being capable of promoting the formation of two liquid phases in equilibrium with the adduct, one liquid phase comprising the feed mixture depleted in constituents adducted and the other liquid phase comprising the solvent associated with the adduct and extracted aromatics as a slurry. The solvent may be miscible or immiscible with the feed. In a modification of the process when the solubility characteristics and feed are such that two liquid phases would not form, an additional compound may be added to bring about the formation of two phases, said compound reducing the solubility of the solvent in the feed and being capable of forming an insoluble inclusion compound with the host which need not in this modification be urea or thiourea but may be a variety of compounds. Preferably the solvent is an ether alcohol or a polyol and the additional compound is a cycloparaffin. Examples of the main process describe the treatment of light naphthas with thiourea and 2 methoxy ethanol and the modification is illustrated by the separation of durene from a mixture with xylene using thiourea, 2 methoxyethanol and methylcyclohexane.
Patent GB-1265088-A (GB)
IPC: B42D3/04
Filed: 1969-12-08
Abstract: 1,265,088. Article carriers. FLOWOOD INDUSTRIES Ltd. Dec. 8, 1969 [Sept. 23, 1969], No.59749/69. Heading A4G. An article carrier, e. g for books, comprises a sheet of flexible material including a central area 11 and a plurality of flaps 12-15 extending outwardly from the central area, the flaps being provided with releasably inter-engageable means 25-28 whereby the flaps may be folded over the central area and temporarily secured to one another to retain articles placed on the central area. The interengageable means may be closely spaced snap fasteners, pressure sensitive adhesive or preferably material having inter-engageable hooks and loops such as the material known under the Registered Trade Mark "Velcro".
Patent GB-1266238-A (GB)
IPC: B65H67/08
Filed: 1969-06-17
Abstract: 1,266,238. Removing foot laps from cops. SCHWEITER ENG. WORKS Ltd. 17 June, 1969 [25 June, 1968], No. 30710/69. Heading D1J. A suction tube 5, Fig. 4, surrounding a cop 6, has a conically convergent end adjacent the free end of the cop, this conical end being closed by a bottom portion 7 in which there is a suction opening 8 offset from the axis of the tube 5 for removing the foot lap 6' from the cop. The opening 8 constrains the air in the tube 5 to flow in a direction parallel to the axis of the cop over a portion only of the circumference of the cop. The cop 6 is rotated by a gripping device 13. On moving the device 13 to the right in Fig. 4 it strikes a stop 25 and causes the shaft 15 to move to the left through its supporting carriage 19. This permits springs 23 to move the clamping jaws 22 apart since cam-followers on these jaws then roll down an inclined surface of the carriage 19. In order to deflect the entire air stream so that it contacts the foot lap section as a jet, the conical end of the suction tube 5 is preferably provided with guide surfaces or steps, for example spiral steps 11, Fig. 3. The suction tube 5 may be split into two halves axially and hinged together as at 12, Fig. 3, so that the two halves can be opened up and the cop inserted from the side. A cutting knife 10' may have a blunt back side 10" co-operating with an edge 5" so that the yarn can be gripped instead of cut.
Patent GB-1288384-A (GB)
IPC: H01L23/485
Filed: 1969-01-31
Abstract: 1288384 Semi-conductor devices TEXAS INSTRUMENTS Ltd 15 Dec 1969 [31 Jan 1969] 5343/69 Heading H1K A power transistor stabilized against localized thermal runaway comprises interdigitated emitter and base regions, wherein the emitter contact overlying the emitter fingers 15 and common emitter region 14 is interrupted over portions 22 of the finger regions near the base of the fingers so that electrical resistances are formed at these portions by the sheet resistance of the emitter region at the interruptions, these resistances serving to stabilize the current density of the device. To reduce localized current injection from those parts of the emitter region adjacent the portion of the emitter contact 20 over the common emitter region, webs 23 of emitter region material extend between and join adjacent emitter fingers 15 to screen the interposed portions 24 of the base fingers 18 from the potential appearing on the common emitter region 14. The transistor may be of germanium or silicon with electrodes of aluminium or molybdenum with gold or aluminium. In alternative embodiments the width of the emitter fingers under the interruptions 22 in the emitter contact may be narrower or wider than the rest of the fingers where the resistance is low and high respectively, to improve tolerance. Other configurations are rib and spine, and star shaped.