baber/WOPTO huggingface dataset:
Patent GB-1252745-A (GB)
IPC: D21F1/00
Filed: 1968-11-29
Abstract: 1,252,745. Making endless metal screens. M. SCHOELLER. 29 Nov., 1968 [9 Dec., 1967], No. 56903/68. Heading B3A. [Also in Division D1] An endless screen for a paper-making machine is made by bonding a first layer of spaced, side-by-side filaments to a backing surface, superimposing further filaments as a second layer on the first layer filaments in the position they are to occupy in the screen, bonding the filaments in the two layers together, applying, if necessary, subsequent layers, and removing the backing. The backing surface may be drawn off a roll and have the first layer filaments applied over the full width thereof, or the backing surface may be a revolving cylinder or an endless moving band with the first layer filaments being helically wound thereon, these filaments running longitudinally of the backing surface. Filaments running transversely of the backing surface may be produced by depositing the filaments across the cylinder or band and advancing the filament applicator in the peripheral or longitudinal direction after laying a set of filaments. Alternatively the transverse filaments assembly can be made by forming a longitudinal filament assembly, cutting across the peripheral or longitudinal direction, turning the cut length to align the filaments transversely and joining the (initial) side edges together. The backing is preferably coated with a rubber adhesive to which the first layer filaments bond. The rubber adhesive can be subsequently dissolved away. The filaments, e.g. wire or polyester, may be coated with a polyurethane adhesive (used to bond the filaments themselves together) during application of the filaments to the back surface. The second layer filaments can be applied to the first layer filaments by passing them through an applicator which traverses across the filaments of the first layer and advances longitudinally thereof. The applicator may also coat the second layer filaments with polyurethane adhesive. A comb associated with the applicator can provide an elliptical coating of adhesive in which the filaments embed. The adhesive may set after the filaments layers have been brought together. The adhesive-coated filaments can also be heat-sealed to one another. Metal filaments may be soldered together. Second layer filaments may have their ends joined together to form an endless second layer filament band. Alternatively, endless filaments can be wound helically on to the endless first layer filament band, or the second layer filaments can be formed on a backing surface (in a manner similar to the first layer filaments) prior to being applied to an endless first layer filament band. Further layers of filaments can be applied to the first and second layers. Any gap between the end of the further layers when around the band of the first layers can be filled with further filaments by a process similar to that of forming the first and second layers. Alternatively, the further layers can be formed by helical winding on to an endless two-layer screen.
Patent GB-1253099-A (GB)
IPC: G05B19/06
Filed: 1969-03-26
Abstract: 1,253,099. Programmed control. PROGRAMMED & REMOTE SYSTEMS CORP. March 26, 1969, No.6869/71. Heading G3N. Material is dispensed on an object passing an oscillating dispensing unit by a control device prepared from a scale drawing of the path of the oscillating unit on which is superimposed a drawing of the object on which the material is to be dispensed. A paint spraying gun on the end of a parallel linkage is coupled to a cam-follower 30, Fig.4, and oscillates between limits in a manner determined by the configuration of a cam 25 driven through a chain and sprockets 157, from a motordriven shaft 155. A spraying control drum 151 is also driven from the shaft 155 through a chain and sprockets 154. Photo-cells 150 are mounted adjacent to the drum and sense strips of reflective tape, (not shown) which are placed on the drum in positions corresponding to the portions of gun travel during which spraying is to take place. The tape is preprogrammed by a drafting procedure whereby a path representation, Fig. 13, related to the speed of a conveyer carrying a carbody, of the spray-gun oscillation is produced to scale and a drawing of the car-body superimposed thereon. The points at which spraying is started and discontinued are then depicted at positions compensated for contour, time-lag and other factors affecting the operation of the spray-gun. The reflective tape is then marked with these points and transferred to the drum 151 in circumferential alignment with one of the photo-cells 150, Fig.4. The portions where.no paint is to be dispensed are blackened with paint or lacquer. Where a plurality of tapes, representing different body-shapes, are mounted on the drum the appropriate programme is selected by energizing the photo-cell 150 positioned to respond to this programme.
Patent GB-1257411-A (GB)
IPC: B31F1/24
Filed: 1970-02-26
Abstract: 1,257,411. Corrugating webs. CARL MUNTERS A.B. 26 Feb., 1970 [11 March, 1969], No. 9373/70. Heading D1S. Apparatus for corrugating a fibrous web 50, e.g. a paper, asbestos or cellulosic fibre web, impregnated with a liquid comprises a mould 12 movable along a straight path and having grooves 16 extending diagonally relative to its direction of movement and a corrugating head 10 of circular section cooperating with the mould 12, rotatable about an axis parallel to the diagonal grooves and having uniformlyspaced vanes 24 projecting into the troughs of the grooves 16, the vanes 24 being spaced about the head 10 to rotate therewith and being movable transversely to the plane of the mould 12 in such manner that always at least one vane 24 retains a corrugation formed by the vane pressed against the mould 12. As shown in Fig. 2, the web 50 is fed from a roll 44 into an impregnating bath 54 containing, for example, an aqueous solution of melamine and a minor amount of alcohol and a catalyst. Excess solution is squeezed out by rollers 56 and the web 50 is fed at a predetermined angle between the head 10 and the mould 12. The mould 12 comprises a series of metal plates 14 connected to form an endless belt and the head 10 comprising a circular-section cylinder 22 having uniformlyspaced vanes 24, preferably of polytetrafluoroethylene, radially projecting therefrom. The ends of the head 10 are each supported by a journal 28 mounted in a link 30 connected to a bracket 34 fixed to the apparatus frame 18 so that the vanes 24 can be swung along a short path which is approximately perpendicular to the plane of the mould 12. A spring 36 provided on one or each side of the head 10 urges the head towards the mould 12. The downward movement of the head 10 is limited by adjustable set screws 38. The corrugations are retained in the grooves 16 by applying suction, through a conduit 60, to a hood 50, the plates 14 being perforated for this purpose. The web is dried by radiant heat from a source 62.
Patent GB-1258582-A (GB)
IPC: A24C5/34
Filed: 1969-03-18
Abstract: 1,258,582. Testing cigarettes. HAUNIWERKE KORBER & CO. K.G. 18 March, 1969 [4 April, 1968], No. 14187/69. Heading A2C. In an apparatus for testing continuously supplied cigarettes, air is blown to impinge against one end of each cigarette in succession and both that portion of the impinging air stream that passes right through the full length of the cigarette, and part of that portion of the impinging air stream that is deflected from the said one end of the cigarette, are measured, and detected variations from normal measurement values caused by a faulty wrapper or faulty end filling of the cigarette are used to actuate means to reject a faulty cigarette. Cigarettes Z are transported on a test drum 1 in grooved supports 6, 7 to which they are held by suction applied through ducts 8, 9 via a control slot 39. Each pair of supports 6, 7 is associated with a bore 24 formed in a flange 4, and a blower nozzle 27 housed in a flange 5, of the drum 1. By means of control slots in stationary control rings 32, 47, as the drum 1 rotates, compressed air is directed against the end of a cigarette Z and the suction supply to the ducts 8, 9 is briefly interrupted so that the cigarette Z is pushed against a bore 24 and, on further rotation of the drum 1, pipes 36, 49 are connected to a chamber 29 surrounding the nozzle 27 concerned, and to the bore 24 concerned, respectively, over an arc of rotation equal to the angular separation of the cigarettes Z. The pipes 36, 49 connect to pneumatic Shmitt triggers 53, 52 the outputs of each of which are fed to a pneumatic OR-member which in turn leads to a pneumatic bistable device 55. Detected air pressures greater than a desired value in the chamber 29, or less than a desired value in the bore 24, actuate the appropriate Shmitt trigger 53 or 52 resulting in a pulse of compressed air being emitted by the device 55 and fed via a pipe 43, a control slot 42 anda duct 22 to ejector nozzles 13, 14 to eject a faulty cigarette while it is still travelling through the test region. The triggers 52, 53 are pre-set to the desired pressure values by means of valves 58, 59.
Patent GB-1259045-A (GB)
IPC: F02K1/72
Filed: 1970-03-23
Abstract: 1,259,045. Deflecting propulsion Jets. ROLLSROYCE Ltd. 23 March, 1970, No. 13963/70. Addition to 1,209,098. Heading B7G. A gas turbine front fan engine has an annular fan duct 15 between inner and outer casings 11, 12 spaced apart by aerofoil-shaped struts 13, the outer casing 12 having an apertured portion 22 traversed by axially extending beams 23. Guide vanes 24 are carried by the beams 23 and during reverse thrust direct the fan air from the duct 15 forwardly. Primary thrust reverser flap members 25 are radially movable between a thrust reversal position (shown in broken outline in Fig. 2) in which they block the fan duct 15 and force the fan air to pass out through the apertured portion 22, and a forward thrust position (shown in full outline in Fig. 2) in which they permit the fan air to flow through the fan duct 15 but block a major part (but not the whole) of the apertured. portion 22. A sleeve member 26 is movable axially of the outer casing 12 by means of hydraulic or pneumatic rams 27 (only one shown) between forward thrust and thrust reversal positions (shown in full lines and broken lines, respectively) to close or open the apertured portion 22. Alternate primary thrust reverser flap members 25 are pivotally connected to two additional flap members 31 which are pivotally connected to the primary members 25 about axes which are spaced from circumferentially opposite sides of the latter. In the thrust reversal position the additional members 31 lie in planes which extend radially of the outer casing 12 while in the forward thrust position they are disposed so as to form part of the outer circumference of the fan duct 15 and block that part of the apertured portion 22 which is not blocked by the primary members 25. Each of the primary members 25 is carried by two arms 32, each provided with a roller 33 movable in a fixed track 34. Each of the arms 32 is pivotally connected to one end of a respective strap 35 which is mounted on a pivot 36 carried by a fixed ring member 37. Each of a plurality of links 40 has one end 41 pivoted to the sleeve member 26 and another end 42 pivoted to a respective primary member 25. Accordingly, when the sleeve member 26 is moved axially downstream, all the primary members 25 are moved into the thrust reversal position. Each of the additional members 31 is pivotally connected to its primary member 25 by means of a link 43 and also by a pair of links 45, 46. A pivot pin 50 on which is mounted a bracket 51 extends between the links 45, 46 and the bracket 51 has spaced ears through holes in which extends a rod 54 which is pivotally connected at 55 to the respective link 40. By reason of this construction, when the primary members 25 are moved into the thrust reversal position, the additional members 31 are pivoted into the radial position shown in broken outline in Fig. 2. Thus, operation of the rams 27 effects movement of not only the sleeve member 26 but also, by way of the links 40 and rods 54, simultaneous movement of the members 25, 31 between the thrust reversal and forward thrust positions.
Patent GB-1290055-A (GB)
IPC: C08F36/04
Filed: 1970-05-27
Abstract: 1290055 Polymerizing conjugated diolefins JAPAN SYNTHETIC RUBBER CO Ltd 27 May 1970 [31 May 1969] 25557/70 Heading C3P A process for producing homo- or co-polymers of conjugated dienes comprises polymerizing a conjugated diene alone or with a vinyl aromatic hydrocarbon in the presence of a lithium-based initiator in a hydrocarbon solvent, the quantity of initiator required for polymerization being divided into portions A and B in a molar ratio A : B of 1 : 3 to 15, the portion A being added at the outset in order to initiate polymerization and the portion B being added when the conversion reaches 20-60% by weight, the B portion being added without deactivating the active species initiated by the A portion. The examples relate to the polymerization of butadiene, isoprene and butadiene/styrene using n-butyl-lithium. Potassium dodecylbenzene sulphate may be present as a randomizing agent.
Patent GB-1295072-A (GB)
IPC: E03C1/322
Filed: 1969-03-20
Abstract: 1295072 Prefabricated service unit DENT & HELLYER Ltd 19 March 1970 [20 March 1969] 14682/69 Heading E1A A prefabricated service unit is made up from front and rear panels 1, 2 of reinforced plastics material, disposed in spaced parallel relationship, the intervening space accommodating service pipes for connection to sanitary fittings mounted on the front panels, the latter being provided with flanges 12 which overlie edge portions of the fittings which bear against the panels. As shown, flange 12, which may be formed integrally with the panels 1, extends from one end to the other of the edge portions of the basin 11. The flanges 12 may be formed separately and secured to the front panels by means of adhesive.
Patent GB-1295918-A (GB)
IPC: B65H67/048
Filed: 1970-01-21
Abstract: 1295918 Brakes TORII WINDING MACHINE CO Ltd 21 Jan 1970 [5 Sept 1969] 2834/70 Heading F2E [Also in Division D1] A brake arrangement permitting an assembly to move freely in one direction between a pair of rails 113a, 113b, but not in the other direction. comprises a body 114 on which is mounted a wedge 118. Springs 116a, 116b on the support 114 force balls 117a, 117b into the gaps between the wedge 118 and the rails 113a, 113b. As a result the body 114 is free to move to the right in Fig. 10. If the body 114 attempts to move to the left, the balls 117a, 117b wedge between the rails 113a, 113b and the wedge 118 and prevent such movement. To release the braking effect two pushing members 127a, 127b are used to force the balls 117a, 117b away from their wedging setting. The Specification also discloses a brake 43, Figs. 4B, 4C, for a spindle 1. The brake 43 is shaped as shown and when in the setting shown in Fig. 4B, it acts on the spindle 1 to brake it. When moved to the setting shown in Fig. 4C a bracket 11 that extends partly around the spindle 1 intersects with the brake 43 to move it out of engagement with the spindle 1.
Patent GB-1297833-A (GB)
IPC: B65D71/70
Filed: 1970-03-07
Abstract: 1297833 Boxes for bobbins BRICELL PLASTICS Ltd 7 March 1970 11018/70 Heading B8P A box, moulded from expanded polystyrene, has projections 18 to engage in the large end of a bobbin core and recesses 19 to accommodate the small end of the core. The bobbins are positioned with the larger and smaller ends uppermost alternately. The underside of the box may have identical formations 18a, 19a so that when stacked a top box forms a lid for a lower box. The uppermost box is fitted with a lid 17. Cut away corners 17b assist stacking. Protrusions 20 support the shoulders of the turns of yarn.
Patent GB-1297899-A (GB)
IPC: G11C16/04
Filed: 1971-05-28
Abstract: 1297899 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 28 May 1971 [2 Oct 1970] 17806/71 Heading H1K The device shown is a variable-threshold IGFET making use of trapping of non-interacting particles 3 in the gate insulation; charge reaches these traps by tunnelling from the semiconductor body 1 through the inner insulating layer 2. In a variant the diffused source and drain regions 8 and their associated ohmic contacts 9 are replaced by Schottky barrier contacts. In other variants the source and drain are not provided and the devices function as voltage-variable capacitors with high hysteresis. Suitable semi-conductors include silicon, germanium, and gallium arsenide. The insulators include aluminium oxide, magnesium oxide, oxides, nitrides, tellurides, chlorides, selenides and fluorides of semi-conductor elements, and phosphosilicate glass; and ceramic or organic materials may be used for the outer insulating layer 5. The trapping particles may be particles of metals or semi-conductors or may be, particularly if a homogeneous insulation 2, 9 is employed, non-interacting groups of implanted ions.
Patent GB-1301272-A (GB)
IPC: B28B7/46
Filed: 1968-11-26
Abstract: 1301272 Compression moulding concrete NATIONAL RESEARCH DEVELOPMENT CORP 26 Nov 1969 [26 Nov 1968] 56110/68 Heading B5A [Also in Division H1] A mould for use in a compression moulding process includes a base and side walls, the side walls each comprising a beam fixed to the mould bottom during the pressing and a wall component magnetically held against the inner face of the beam and downwardly slidable to reduce the effective height of the mould during the pressing. In the embodiment shown in Fig. 1, the mould consists of a perforated bottom plate 506 covered by a finely perforated plate 504 and a layer of filter paper 502 and side wall defining beams 10 having recesses 31 carrying permanent pot magnets. Slidably located upon the inside walls of the beams are wall components 16 in the form of plates. In operation, the mould is supported upon the grooved lower platen of a press and the components 16 are raised above the beams (as shown in phantom lines) and retained there by the magnets. Concrete is then poured into the mould and the mould closed by the upper grooved platen of a press, which platen carries perforated plates 504, 506, similar to those supported by the lower platen. During pressing, water is expelled through the perforated plates and is guided away along the grooves of the platen and the components 16 are gradually forced down until they abut the mould bottom, the lowermost edge of each component being tapered to permit easy passage through the compressed material. Finally the upper platen is raised, the beams withdrawn a small amount to release the pressed article and the article removed. Several alternative examples of permanent magnetic or electromagnetic devices for holding the component against the beam are given (see Figs. 5A, 6 and 8B, not shown). If desired the single component 16 may be replaced by two components slidable relative to each other, one or both components carrying projections intended to form indents in the edge of the moulded article (see Figs. 2A, 2B, 3, 4, and 11A, not shown). An alternative mould construction using a bottom comprising a grid supporting a pair of thin perforated plates is illustrated in Fig. 11B (not shown). In the embodiment of Fig. 10, the beams 10 forming the long sides of a mould are backed by extensions 77, themselves backed by stops 76. The stops are forwarded and retracted to position the beams and lock them in position during the moulding by means of rack operated wedges 73 which engage the rear of the stops. The beams 10 forming the short sides of the mould are backed by spacer elements 81, themselves backed by pusher girders 82 engaged from behind by wedge operated stops 76. In the embodiment of Fig. 9, the beams forming the long side of the mould are backed directly by stops 76 and not by extensions 77. Also stop supporting beams 10<SP>11</SP> are used to form an aperture defining core within the mould. In the embodiment of Fig. 12, the beams 10 are carried by sets of parallel links actuated by pistons and the mould is easily adjustable in size.
Patent GB-1301572-A (GB)
IPC: F04B49/00
Filed: 1970-04-24
Abstract: 1301572 Fluid pressure servomotor systems CONSTANTIN RAUCH 24 April 1970 [25 April 1969 2 Feb 1970] 19936/70 Heading G3P An apparatus for the control of the delivery quantity of an adjustable axial piston pump 1, the adjustment of which is effected by a servovalve 4 which through the agency of a regulating slide valve 6 controls a servomotor 2 operated from an auxiliary hydraulic circuit, is characterized by a control chamber of the regulating slide valve 6 being sub-divided by an annular piston 7, which is displaceable relative to the slide and whose movement is limited on the one hand by an abutment on the slide and on the other hand by an abutment 9 on the housing, into first and second annular chambers 11, 10 and wherein the first annular chamber 11, is connected to an amplifier stage 5 of the servovalve 4 whereas the second annular chamber 10 communicates with a control circuit influenced by the pump 1. The auxiliary hydraulic circuit is supplied by an auxiliary pump 14. The control circuit of the pump 13, 28, 29 responds to a parameter of the pump 1 to keep constant or limit the power of the pump. The signals fed to the control valve can be of various kinds e.g. mechanical or electrical. An arbitrary signal fed into the servovalve 4 causes one of the pistons 7 or 7' to move outwardly against the force of the spring 3 to move the slide 6. Two annular pistons 7, 7' are utilized in reversing regulating systems. A number of pumps may be controlled in such a manner, Fig.2 (not shown).
Patent GB-1316518-A (GB)
Title: Selectively controlled alarm
IPC: G08B7/06
Filed: 1971-08-02
Abstract: 1316518 Lamps M S BRASSELLand L L CLARDY 2 Aug 1971 36256/71 Heading F4R A lamp-post carries a first lamp, which may be controlled by a photo-electric cell, for illuminating a surrounding area and a second lamp controlled by a switch located in a nearby house for giving a visual warning signal in the event of an emergency, an audible warning device such as a siren or bell also being mounted on the post and connected in circuit with the second lamp. The switch has two positions, in one of which the first lamp is connected in circuit via the photo-electric cell and in the other of which the first lamp is de-energized and the warning signal is given. The second lamp emits a coloured flashing light.
Patent GB-1319066-A (GB)
Title: Activated nickel catalysts
IPC: C07C5/10
Filed: 1970-07-30
Abstract: 1319066 Hydrogenation E I DU PONT DE NEMOURS & CO 30 July 1970 [30 July 1969] 36979/70 Heading C2C [Also in Divisions C5 C7 and H1] Highly active hydrogenation catalysts, prepared by caustic leaching of Ni-Al alloys (see Division C7), are said to be suitable for the hydrogenation of aryl compounds, the conversion of nitro or cyano compounds to amines and hydrogenation of esters to alcohols, ketones to secondary alcohols, aldehydes to alcohols or alkyl anthraquinones to alkyl anthrahydroquinones. Examples given refer to conversion of butynediol to butanediol.
Patent GB-1328188-A (GB)
Title: Ratchet drive mechanism
IPC: H01H67/16
Filed: 1972-04-27
Abstract: 1328188 Electromagnetic selector switches STANDARD TELEPHONES & CABLES Ltd 27 April 1972 19622/72 Headings H1L and H1N An electromagnetic selector switch has a forward acting ratchet and pawl drive mechanism in which the pawl 41 is of a plastics material and the teeth of the ratchet 13 one of metal. Fig. 1 shows the wipers 10 which co-operate with banks of fixed contacts 20. The wipers are mounted on a tube 11 which is raised against the bias of a spring 15 to align the wipers with a selected bank of contacts 20 by a ratchet and pawl mechanism 12, 31 driven by an electromagnet 30. Contact selection of a long particular bank of fixed contacts is effected by an electromagnet 40 driving the plastics pawl 41 driving the ratchet 13 whilst a disc 14 engages a notch in a comb plate 16 which is disengaged by the disc 14 when the ratchet 13 is fully rotated to allow resetting of the switch.