baber/WOPTO huggingface dataset:
Patent GB-1410990-A (GB)
Title: Combustor and method of operating same
IPC: F23R3/26
Filed: 1972-12-15
Abstract: 1410990 Liquid or gaseous fuel combustion apparatus PHILLIPS PETROLEUM CO 15 Dec 1972 [15 Dec 1971 27 March 1972] 58138/72 Heading F4B [Also in Division F1] To reduce formation of pollutants, particularly nitrogen oxides, primary, secondary and tertiary air (or other oxidant) is introduced into a flame tube as three distinct streams, the tertiary stream being preheated by heat exchange with the flame tube wall in the region of the primary combustion zone. In one arrangement, Fig. 1, a flame tube 12 is mounted within outer casing 16 to define an annular chamber 18. Primary air from the latter flows through oblique passages 24 to mix in a swirl chamber 22 with high aromatic fuel supplied axially through duct 26. Secondary air is added to the burning mixture through circumferentially spaced ducts 36 leading to openings 34, the secondary air having passed through a region 19 of chamber 18 defined outwardly of a sleeve 30 surrounding the primary combustion zone. The annular space 18<SP>1</SP> between sleeve 30 and flame tube 12 contains circumferential or axial spaced fins 40, 42 to assist transfer of heat from the primary combustion zone to tertiary air flowing through space 18<SP>1</SP>. The tertiary air leaves the latter through gaps (45, Fig. 6, not shown) between ducts 36 and thence flows through openings 38 to mix with the combustion gases. In a modification, Fig. 14, sleeve 30 is not provided and the secondary air is supplied through ducts 36<SP>1</SP> which may be disposed outside casing 16<SP>1</SP>, as shown, or within the latter (Fig. 13, not shown). Ducts 36<SP>1</SP> may be connetted to a separate source of air and may include means for heating the secondary air passing therethrough to a temperature higher than that of the primary air. The primary combustion zone may operate fuel-rich whereas the secondary zone may be fuel lean. The relative volumes of the primary, secondary and tertiary airflows are substantially 1 : 1 : 2. Temperatures and other operating conditions are specified. Various modified ways of introducing the fuel and air into the upstream region of the primary combustion zone are described (Figs. 7 to 12 and 15 to 17, not shown). The gases leaving the flame tube may be used in a turbine, furnace or boiler.
Patent GB-1338594-A (GB)
Title: Acetanilide derivatives
IPC: C07C/
Filed: 1970-12-09
Abstract: 1338594 Acetanilide derivatives DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 9 Dec 1970 [13 Dec 1969] 58449/70 Heading C2C [Also in Division A5] Novel acetanilide derivatives of the formula wherein R is C 1-6  alkyl or C 2-6  alkoxy, and acid addition salts thereof are prepared by acetylating the appropriate 4-aminodiphenylamines.
Patent GB-1314558-A (GB)
Title: Method of enriching titanium-containing minerals in titanium
IPC: C22B34/12
Filed: 1970-12-10
Abstract: 1314558 Removing Fe from Ti minerals SACHTLEBEN AG FUR BERGBAU UND CHEMISCHE INDUSTRIE 10 Dec 1970 [11 Dec 1969] 58814/70 Headings C1A and C1N Iron is removed from a finely divided uncalcined Ti-containing mineral by leaching at the boil with dilute H 2 SO 4  in the presence of a reducing agent, separating off the liquor, and repeating the process. After each leach, the suspension may be diluted and boiled to ppt. any dissolved Ti optionally with the addition of flocculants, e.g. polyethylene oxide or polyacrylates. The reducing agent may be Ti<SP>III</SP> sulphate, Fe scrap, Zn, Al, Mg, SO 2 , CO or " Longalite " (Trade Mark) and may be used in amount of 0À5-10% by wt. of the mineral. The H 2 SO 4  may be of 10-35% concn. and may be waste acid from Ti sulphate hydrolysis. The mineral may be ilmenite having a maximum particle size of 100 Á with at least 80% below 40 Á. The process may be carried out continuously in 2 series of leaching tanks (Ex. 4). FeSO 4  may be crystallized out from the filtrate and converted into Fe 2 O 3 , and mother liquor from the crystallization may be recycled to the leaching stage. The upgraded mineral may be used to make TiO 2  by the sulphate process.
Patent GB-1442610-A (GB)
Title: Brake squeal preventing device
IPC: B60T8/176
Filed: 1973-12-19
Abstract: 1442610 Hydraulic braking systems; antilock systems; preventing squeal TELDIX GmbH 19 Dec 1973 [21 Dec 1972] 58850/73 Headings F2F and F2E A modulating valve arrangement in an hydraulic vehicle braking system is actuable by a pulse generator 13 to provide modulation of the braking pressure for the purpose of preventing brake squeal. In the embodiment of Fig. 1 the valve arrangement comprises the modulation valves of an anti-lock brake system viz. magnetic valve combination E 1 /A 1  and E 2 /A 2 , each comprising a normally closed inlet valve and a normally open output valve, the combinations being associated with speed sensors 1, 2 of front wheels 4, 5, and a two-way valve V 3  associated with a sensor 3 associated with the rear wheels 6. The valves are mounted in brake lines between a master cylinder (9) and wheel cylinders (10) (see Fig. 2, not shown) and changeover to reduce the brake pressure. For anti-lock control the changeover is initiated by an evaluation circuit 7 but the pulse generator 13 is also operable to feed the valves with pulses via AND gates 14- 16 and OR gates 17-during pulse pauses the pressure rises and during the duration of the pulses the pressure is reduced. The AND gate 16 is connected to a switch 16a, e.g. the vehicle brake light switch so that the pulse generator 13 is connected to the valves only during brake actuation. Also AND gate 15 is blocked during anti-lock modulation by means of an OR gate 15a. AND gate 14 is blocked by a signal from a comparator 14a to which a voltage corresponding to the vehicle speed or the brake pressure is fed for comparison with a predetermined voltage, to prevent the pressure modulation if the vehicle is travelling above a predetermined speed and/or if the brake pressure is above a predetermined level. In the full power brake system of Fig. 3 a pressure line from a pump 23 to a wheel cylinder 21 is normally closed by a valve 24. A pressure sensing element 26 in the line feeds a pressure-dependent voltage to a comparator 27 to which is also fed a voltage dependent on the actuation of brake pedal 28 and formed in element 29. With the voltage of element 29 larger than the voltage of element 26, valve 24 is opened to operate cylinder 21; in the reverse case a valve 25 is opened to reduce the braking pressure. In this case the pulse generator 35 operates the valves 24, 25 by way of AND-gate 32 and OR-gates 33, 34 whereby during the pulse pauses, the brake pressure is reduced because of the inverted output of an element 36 and during the pulse periods the pressure is increased. An AND-gate 32 and a comparator 37 with a predetermined threshold ensure that the modulation pulses are only effective below a predetermined pressure level and/or vehicle speed.
Patent GB-1415840-A (GB)
Title: Resealable closures
IPC: F16L55/115
Filed: 1971-12-22
Abstract: 1415840 Resealable closures; pipe connectors BUSBY & CO Ltd 12 Dec 1972 [22 Dec 1971] 59837/71 Heading B8T [Also in Division F2] A metal resealable closure has a cylindrical body 7 with a rim 8 and a base 9 with a flange 10 that serves as a grip. A resilient 0-ring, seated and retained within the rim 8, has a small radial clearance 12. The closure size is selected so that the 0-ring may engage the groove 5 of a neck or tubular end portion 4. When the closure is removed the clearance 12 permits the 0-ring to expand radially as it is withdrawn from the groove 5 over the tubular portion 4. The 0-ring remains trapped within the rim 8 on relative sliding movement because the circumferential extent of the rim covers more than 180 degrees. An arrangement is envisaged whereby the device may have an adaptor to actuate a valve in the body 1 and thus act as a connector for fluid flow through the valve. The closure may be suitably shaped for use with oval or square openings with rounded corners.
Patent GB-1298490-A (GB)
Title: Stabilizer laminated electrets
IPC: B32B27/06
Filed: 1970-12-18
Abstract: 1298490 Electrets KUREHA KAGAKU KOGYO KK 18 Dec 1970 [19 Dec 1969] 60320/70 Heading H1M The stability of a stack of electrets 1 is increased by providing on the end faces and optionally between the individual electrets, layers 2 of plastics material of higher resistivity than the plastics electret-forming material. Layers 2 may be preformed films or may be cast from solution, e.g. by dipping, and may be applied before or after the electret-forming process. The electret material may be a polyvinylidene fluoride, polymethyl methacrylate, or mixtures of these, polyethylene or polypropylene if these contain ionic impurities, polyethylene terephthalate, polycarbonates or polar fluoroplastics. Layers 2 should having a resistivity of at least 10<SP>15</SP> ohm-cm., and may beP.T.F.E. or polystyrene.
Patent GB-1412110-A (GB)
Title: Couplings
IPC: F16D3/04
Filed: 1971-12-31
Abstract: 1412110 Shaft couplings UNITED GAS INDUSTRIES Ltd 1 Jan 1973 [31 Dec 1971] 60892/71 Heading F2U Torque can be transmitted between two rotatable members 12, 15 (e.g. of plastics) one, 15 (e.g. the input) having a bore with at least three arcuate recesses 16 each having a corresponding radially extending peg 13 on the other member 12 (e.g. the output integral with a gear) arranged so that when the members 12, 15 are coaxial, all the pegs engage their corresponding recesses, whereas when the axes 11, 17 of the members 12, 15 are parallel; each peg engages its recess in turn (e.g. over the arc B). The coupling may be used in a gas or other meter between the measuring mechanism and the indicating dial.
Patent GB-1200819-A (GB)
Title: Improvements in or relating to an adjustable gas jet
IPC: F02M23/00
Filed: 1968-12-24
Abstract: 1,200,819. Spray producers. AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT. 24 Dec., 1968 [29 Jan., 1968], No. 61226/68. Heading B2F. Adjustable gas jets having variable-section passages comprise two walls of thickness 0.1 to 0.2 mm., the first 3 being fixed and having an orifice 5 therein which is masked to a varying degree by the second wall 7 which is rigid with a movable shoe 6 guided by elastically yieldable means 9 which maintain the shoe against the fixed wall. The elastically yieldable means may comprise branches of a U-spring engaging blind apertures 10 in the shoe to bias it against the rod 17 and adjusting means 18 which, in the case of an air inlet device, may be an aneroid
Patent GB-1302030-A (GB)
IPC: E04H7/18
Filed: 1969-12-30
Abstract: 1302030 Subaqueous structures SOC ANON DES ENTREPRISES LEON BALLOT 30 Dec 1969 [30 Dec 1968] 61283/69 Heading E1H In a concrete reservoir for storing fluid hydrocarbons underwater mutually-perpendicular reinforcing-rods are disposed so that each of walls 18, 19, 19b, 20 between vertical prismatic cells, and preferably each of side walls 16, 17 too, is pre-stressed in two directions at right angles in the plane of the wall and each of junctions 19a, and preferably each of junctions 18a, 20a, 21 also, is pre-stressed in three directions at right angles. The cells may extend between a floor (7) and a roof (15) of the reservoir and have openings therein interconnecting the cells, Fig. 2 (not shown). The floor may rest on a pad (9). Reinforcing rods may be provided in the roof, Figs. 6 and 7 (not shown). The cell walls may be prefabricated, Figs. 9 and 10 (not shown). The junctions may be formed integrally with the walls, Figs. 11 and 12 (not shown).
Patent GB-1283350-A (GB)
Title: Dried milk products
Inventor: GUNSON SAM
IPC: A23C9/12
Filed: 1968-12-31
Abstract: 1283350 Milk product UNILEVER Ltd 30 Dec 1969 [31 Dec 1968 (2)] 61974/68 and 61975/68 Heading A2B A dry composition which may be hydrated by the addition of milk to form a set milk product comprises dry milk solids, a cold water gelling agent, for example a cold water gelling starch, preferably in an amount of 1-10 units (1 unit being the minimum weight of the agent which will set to form a gel in 1 litre of water) per 1000 grams of non-fat dry milk solids, a dry preparation of milk clotting enzyme, for example rennet, preferably in an amount of 1-10 units (1 unit being the weight of preparation required to set 1 litre of milk at 20‹C in 2 hours) per 1000 grams of non-fat dry milk solids, and a lactone of a sugar acid.
Patent GB-2023640-A (GB)
Title: Hydrocarbon conversion catalysts
IPC: B01J37/00
Filed: 1978-06-23
Abstract: Catalysts comprising a metal supported on a porous gel of an inorganic substance which has been prepared by a sol-gel process are used in hydrocarbon hydroconversion processes such as reforming in which less gas is produced by hydrocracking than when using conventional catalysts. In the sol-gel process primary particles (such as those produced by flame hydrolysis) are dispersed in a liquid to form a sol containing colloidal particles which are aggregates of the primary particles and the sol is dried to produce a porous gel which is calcined to produce a support which has a narrow pore size distribution.
Patent GB-2002714-A (GB)
Title: Mine rippings- deflecting structure
IPC: E21D17/082
Filed: 1978-08-01
Abstract: A roadway shield for use in coal- mining operations capable of being mounted on the sides of a conveyor (12) to protect it from debris consisting of a frame (1) and having an inclined roof portion (2) and an extendible roof portion (5) so that the roof may be extended to the side of the roadway. <IMAGE>
Patent GB-2007339-A (GB)
Title: Dummy hand grenade
IPC: F42B8/26
Filed: 1978-09-06
Abstract: A dummy hand grenade having a charge (14) ignited by delay charges (13) mounted in a tubular charge carrier (10). In order to prevent fragments of the charge carrier (10) of the charge (14) being ejected during explosion, the charge carrier (10) is designed as a plastics tube with a closing membrane (16) and is secured to the charge carrier (10) for the delay charges (13) by means of a metal sheath (17). <IMAGE>
Patent GB-2004462-A (GB)
Title: Flavoured vaginal contraceptive
IPC: A61K9/02
Filed: 1978-09-19
Abstract: A vaginal contraceptive comprises a biologically inert carrier, a spermicide and a flavorant.
Patent GB-2007984-A (GB)
Title: Ball launching apparatus
IPC: A63B69/40
Filed: 1978-11-14
Abstract: Apparatus for launching balls comprises a tube (1) provided at one end (2) with a mouth having a cross-section which is larger in size than the cross-section of the balls (5) as launched from the tube, ball feed means (3) arranged to act upon a supply of balls and arranged to introduce one ball at a time into the tube, and ball expulsion means (7, 8, 10) located within the tube (1) and arranged to expel a ball out of the tube at a given moment and under predetermined conditions. <IMAGE>
Patent GB-2011947-A (GB)
Title: A copper/zinc alloy and a method of producing such alloy
IPC: C22F1/08
Filed: 1978-12-07
Abstract: A copper/zinc alloy for semi- finished products and semi-manufactured articles, and in particular suitable for synchronising rings, in which a uniform or constant coefficient of friction, good workability and high resistance to wear are required, consists of 70 to 75% Cu, 6 to 8 % Mn, 4 to 6% Al, 1 to 4% Si, 1 to 3% Fe, 0.5 to 1.5% Pb, less than 0.05% Ni, less than 0.05% Sn, the remainder being Zn (all data expressed as percentages by weight). Said alloy has a structure consisting of  beta -phase in which 15 to 40%, preferably approximately 30 to 35%,  alpha -phase is embedded. A method of producing the alloy comprises the steps of continuous casting, extrusion, forging, rapid cooling from between 600 and 750 DEG C, and subsequent heat treatment at between 1 and 20 hours at 150 to 350 DEG C leading to  alpha -precipitation of 15 to 40%.
Patent GB-2045718-A (GB)
Title: Labels
IPC: B31D1/02
Filed: 1979-01-26
Abstract: A self-adhesive label comprises a front portion 6 having an adhesive rear surface, and a backing adhered to an area 14 of the rear surface thereby leaving a further area 12 of the rear surface adherable to an object. The label preferably carries information on the rear of the backing and the front of the front portion. A continuous backing sheet 4 having a plurality of front portions 6 detachably and adhesively attached thereto may be severed to define individual backing sheet portions 10 which are removed with the portions 6 when the latter are peeled off the sheet 4. In one embodiment, the adhesive allows the labels to be readily removed from an object to which they have been applied. In another embodiment, two lines of perforations which stand through both the front portion 6 and the backing sheet alow a part only of the portion 6 to be removed from an object to which the label has been applied. <IMAGE>
Patent GB-2014905-A (GB)
Title: Inking Pad
IPC: B41L13/06
Filed: 1979-02-05
Abstract: An inking pad for wrapping on the cylinder of a stencil duplicating machine is provided at its ends with pockets that collect, in use, any ink on the pad arriving at the ends thereby substantially eliminating any soiling of the machine or operator's hands. Each pocket may consist of a pair of ink impermeable strips (10) extending over opposite faces of the pad (2) to be secured together beyond the pad edges, the bottom of the pocket being closed by a seam (14). Alternatively a single strip is folded round a sleeve (7) for an attachment bar (8), the sides of the pocket again being closed by sealing the strip material beyond the pad edges. <IMAGE>
Patent GB-2020187-A (GB)
Title: Filter element
IPC: B01D29/00
Filed: 1979-03-12
Abstract: A filter element, adapted to be precoated with a filter aid, includes a porous tubular core 82, and a means supporting the filter aid precoat including a discontinuously slotted sheet 86 arranged concentrically about the tubular core 82. Each of the slots 88 has an elongate configuration, and provides an absolute particle retention ability of less than 30 microns while decreasing the bubble point pressure over apparatus of the prior art, thereby reducing gas entrapment in the filter element. In alternative embodiments 1 the means for supporting the filter aid precoat is a conventional mesh which extends only up to the edge of vent sleeve 90 and the discontinuously slotted sheet, in the form of a sleeve or separate discs, is confined to inside sleeve 90 to cover vent apertures 92. <IMAGE>
Patent GB-2020860-A (GB)
Title: Data Introducing Arrangement
IPC: G04G5/04
Filed: 1979-04-17
Abstract: To permit rapid setting of a countdown device such as a timer employing a digital display and a plurality of up/down counters 6, 22, 24, one for each digit, a single control switch 1 is provided which may be in the form of a push-button and the signal obtained therefrom acts on each counter until a predetermined count is reached and then on the succeeding counter. Thereby digital data may be rapidly introduced, precision of the set count (interval) diminishing however as its magnitude (duration) increases, as shown at the foot of Fig. 1. The by-pass circuitry is inactive during countdown so that the counters then operate in the normal way. <IMAGE>
Patent GB-2039318-A (GB)
Title: An anti-theft lock particularly for automobiles
IPC: B60R25/021
Filed: 1979-05-10
Abstract: An anti-theft lock especially for automobiles comprising a cylinder which can be moved in rotation inside a casing under the action of a key. The lock is characterised in that the end of the lock comprises a cover 9 provided with a orifice 10 for the passage of the key, the cover and the lock being able to be moved in rotation relatively to each other in the case of actuation of the key, the cover moreover being provided with at least one window F1, F2 arranged so that it is located at the level of a reference C in order to obtain a relative angular position between the lock and the cover. <IMAGE>
Patent GB-2023248-A (GB)
Title: A braking compensating device dependent on deceleration
IPC: B60T8/28
Filed: 1979-06-13
Abstract: A brake pressure proportioning valve element 80, between an inlet 94 and outlet 98 is biased to the open position by inlet pressure transmitted to a space 128 to act on a differential piston 108. The pressure is transmitted through passage 148, valve 144 and passages 172, 188, and the valve 144 is closed by inertia weight 130 to prevent further increase in the biassing pressure when a certain deceleration is reached. The weight 130 is mounted with small clearance in cylinder 16 to provide viscous damping. <IMAGE>
Patent GB-2036587-A (GB)
Title: Adsorbent regeneration and gas separation utilizing dielectric heating
IPC: C01B21/04
Filed: 1978-10-25
Abstract: Dielectric heating (microwave or radio frequency radiation) of saturated adsorbents to remove the adsorbed materials results in more rapid, efficient and safe regeneration than conventional heating. Separation of a gas mixture into two concentrated streams of its components is enabled by adsorption of one fraction by a selective adsorbent followed by removal of that fraction with dielectric heating and little or no purge gas. Useful by-products of the separation process are thereby economically recovered.
Patent GB-2033973-A (GB)
Title: Apparatus for Inspecting Internal Components of a Gas Turbine Engine
IPC: F01D21/00
Filed: 1979-09-27
Abstract: The apparatus comprises a guide tube 34 which is inserted through an access aperture 22 in the engine casing 12, the guide being movable both rotatably and axially with respect to the aperture and being lockable in any desired position. The internal end 38 of the guide can be located adjacent the component to be inspected, e.g. blades 16, 20, and a flexible endoscope or other remote viewing apparatus is passed through the interior of the guide. <IMAGE>
Patent GB-2032802-A (GB)
Title: Document shredder
IPC: B02C18/14
Filed: 1979-10-09
Abstract: A document shredder having first and second rotary cutting disks 16, 16' alternatively arranged and held in shredding engagement with one another to shred waste material S into strips, first spacer members 20 disposed in first gaps formed between the first rotary cutting disks, and second spacer members 20' disposed in second gaps formed between the second rotary cutting disks. The first spacer members have cutting edges 20a held in shredding engagement with outer peripheries of the second rotary cutting disks 16' in the first gaps to cut the strips into chip fragments in the first gaps. The second spacer members have cutting edges 20'a held in shredding engagement with outer peripheries of the first rotary cutting disks 16 in the second gaps to cut the strips into chip fragments in the second gaps.   <IMAGE>
Patent GB-2034708-A (GB)
Title: Isocyanate Compositions
IPC: C07C265/12
Filed: 1979-10-23
Abstract: A liquid diisocyanate composition, useful in the manufacture of polyurethanes, comprises a diphenylmethane diisocyanate in which from 1 to 30% of the isocyanate groups have been reacted with a cyanohydrin of formula:   <IMAGE> where each of R and R<1> is an optionally substituted C1-8 alkyl or cycloalkyl group or an optionally substituted aryl group, or R and R<1> taken together with the attached carbon atom form a cycloalkylidene radical.
Patent GB-2037909-A (GB)
Title: Clutches
IPC: F16D41/22
Filed: 1979-12-06
Abstract: A clutch for driving the rotary basket in circular knitting machines provided with a device for reciprocatory motion of the needle cylinder, comprises a toothed flange 15 forming a driven clutch member and a displaceable spring loaded toothed flange 3 connected to a drive shaft 1, a spring loaded pawl 11 being provided for locking the displaceable spring loaded toothed flange 3 when disengaged from the flange 15. In one direction of rotation of the shaft 1, the tooth 7 on the flange 3 drivingly abuts a tooth 8 provided on the driven flange 15 but in the opposite direction of rotation of the shaft 1, the tooth 8 rides along a gradient 9 of the tooth 7 to urge the flange 3 against the bias of the spring 4 thereby to disengage the clutch. <IMAGE>