baber/WOPTO huggingface dataset:
Patent GB-1498960-A (GB)
Title: Paper for cable cores
IPC: H01B7/285
Filed: 1974-12-17
Abstract: 1498960 Particle coated paper laminates HOECHST AG 17 Dec 1974 [19 Dec 1973] 54395/74 Heading B5N [Also in Divisions B2 and C3] A material for protecting electrical conductors from water comprises paper carrying a coating of water swellable cross-linked cellulose ether granules. The coating may include starch phosphate granules. The granules may be sandwiched between adjacent sheets of paper in a multilayer structure. In the multilayer construction a paper sheet may be coated with viscous cellulose ether or merely dampened before application of the granules before covering the coating with a further wet paper sheet and drying. Further granule and wet paper layers may be applied alternately before drying. The preferred cellulose ether for both granules and viscous solution is sodium carboxymethyl cellulose. In the case of the single paper layer, a viscous cellulose ether solution (e.g. Na carboxymethyl cellulose) is applied (e.g. by air-brush or roller) to the paper and the granules are strewn thereon before drying. A further layer of Na carboxymethyl cellulose solution may then be applied and dried. The further layer may be dispensed with if a water-soluble wax (e.g. a polyglycol) is added to the first-applied viscous cellulose ether solutions. In use the coated or sandwich sheets are lapped round individual conductors which form a cable core.
Patent GB-1341927-A (GB)
Title: Machine for manufacturing welded steel structural parts
IPC: B21F27/10
Filed: 1971-11-23
Abstract: 1341927 Welding by pressure EVG ENTWICKLUNG U VERWERTUNGSGESSELLSCHAFT mbH 23 Nov 1971 [27 Nov 1970] 54396/71 Addition to 1277838 Heading B3R A machine for resistance welding transverse rungs Q between two longitudinal rods L1, L2 comprises means 6a for feeding the longitudinal rods convergently and at constant linear speed, means for introducing the transverse rungs between the longitudinal rods to move therewith at the constant linear speed and resistance welding heads 1 linked together in an endless chain 3 the path of the chain having a straight run extending parallel to the plane of the longitudinal rods, each head having a gripper for receiving a transverse rung and for introducing the rung between the longitudinal rods and two electrodes, one one each side of the gripper, movable together and apart for welding the transverse rungs to the longitudinal rods. Thrust devices are provided to apply welding pressure to the longitudinal rods where they contact the rungs as are means to feed rungs and supply current to the electrodes. Sixteen welding heads are linked by pivot pins to form a chain 3 passing over sprocket wheels 4, 5, the upper run of the chain being at the level of two longitudinal wires L1, L2 fed by rollers 6a, 6b. Each head has two electrode holders 10, 10<SP>1</SP> slidable towards one another by engagement of rollers 24, 24<SP>1</SP> on the heads with cam rails 28, 28<SP>1</SP> and away from one another by springs. Between the holders 10, 10<SP>1</SP> on each head is a clamp for a transverse rung comprising a spring urged jaw and a pivoted jaw having a cam roller coacting with a cam surface beneath the run of the chain. Three intermittently rotating wheels 44 are provided at the lower run of the chain to supply transverse rungs into the clamps on the heads which carry the transverse rungs to the upper run of the chain where the electrodes 11, 11<SP>1</SP> on the holders 10, 10<SP>1</SP> are moved together to weld the longitudinal rods to the transverse rungs. The wheels 44 each have three notches which are fed one at a time when a lowermost position with a transverse rung which is carried when the wheel rotates to a position where the rod is forced out of the notch into a clamp. A reciprocating bar feeder may be used instead. The clamps which may be provided with magnets release the transverse rods after welding. Current for welding is supplied from a contact 30 to the electrodes via the rollers 24 and return via the conductive rail 28<SP>1</SP> and current for heat treatment is supplied from a contact 31 downstream of contact 30.
Patent GB-1431783-A (GB)
Title: Tracking systems
IPC: G01S3/783
Filed: 1972-11-24
Abstract: 1431783 Optical tracking BRITISH AIRCRAFT CORP Ltd 22 Nov 1973 [24 Nov 1972] 54449/72 Heading H4D In a tracking system which includes a tracker having a split photosensitive screen divided into two equal areas such that a light strip incident on the screen and originating from the object being tracked will produce a pair of pulses having the same characteristic shape but relative amplitudes depending on the proportion of light strip incident in the respective areas, the two pulses having equal amplitudes when the object is centred on the screen, an out of balance error signal is obtained from the proportional difference in amplitude of the two pulses. Coincident pulses of similar shape are obtained, one from each electrically separate triangular photo-electric area A, B, Fig. 1 of screen 16 upon which is focused a light strip 10 produced by aiming a cylindrical lens system at the engine flare of a missile. The amplitude A, B, Fig. 2, of the pulses will be equal when the missile is in the centre of the field of view, i.e. when the light strip is co-incident with the centre line 11. The circuit of Fig. 2 generates an out of balance control voltage proportional to (A - B)/ (A + B) to maintain this condition. Pulses A and B are amplified at 12, 13 respectively, the gain of which amplifiers, is controlled by an AGC so that A+B>V REF  where V REF  is a fixed reference voltage. The pulse leading edges are extended by filters and the amplitudes summed at 14, which sum is applied to the AGC and also compared with V REF  in a comparator so that when A + B>V REF  the sample and hold circuits for each pulse are enabled, and the difference of the outputs thereof is produced at the output of amplifier 15, to produce the control voltage.
Patent GB-1403198-A (GB)
Title: Metal encapsulation
IPC: C23C18/18
Filed: 1972-09-07
Abstract: 1403198 Coating colloidal particles BELL & HOWELL CO 7 Sept 1972 [30 Sept 1971] 54527/74 Divided out of 1403197 Heading C7F A suspension of colloidal like particles (0.001- 10Á) in a suspension liquid is treated with a metal compound capable of being reduced to a metal catalyst for electroless plating, said compound being in a solvent immiscible with said suspension liquid, the mixture being agitated until said particles are coated with said compound, and the coated particles are electroless plated. The particles may be glass, metal, minerals, organic or inorganic compounds, waxes, polymers, or inorganic/polymer mixtures; said catalytic metal may be Ru, Rh, Pd, Os, Ir, Pt, Ag or Au, suitable metal salts and suitable solvents therefor being listed. In an Example, 0.5-1.0Á particles of an acrylic polymer dispersed in a hydrocarbon mixture is mixed with 2 wt parts PdCl 2  in 200 parts water and agitated; the organic dispersion is separated from the water, and the treated particles electroless plated in a solution of 3.5% Co So 4 , 7.0% Al 2 (SO 4 ) 3 , 2.0% NaH 2 PO 2 and 15.0% NaK tartrate.
Patent GB-1356812-A (GB)
Title: Wall-element
IPC: E04C2/288
Filed: 1971-11-24
Abstract: 1356812 Wall panels DEN NORSKE GIPSPLATEFABRIKK AS 24 Nov 1971 [24 Nov 1970] 54582/71 Heading B5N [Also in Division El] A wall panel comprises a porous core 1, e.g. foamed polyurethane, two hard facing layers 2, e.g. plaster and a laminated beam along its  upper edge comprising two plywood strips 3 and a wood lath 4 bonded together. The wood lath may have notches to receive the edges of the plywood strips. The panel may have a door or window opening. The laminated beam may be glued to the plaster boards, the foam core being trimmed to size and placed on one board before the other board is glued to the beam.
Patent GB-1153317-A (GB)
Title: Improvements in or relating to Track-Laying Vehicles
IPC: B60T11/10
Filed: 1966-12-06
Abstract: 1,153,317. Vehicle controls; steering endlesstrack vehicles. BOFORS A.B. 6 Dec., 1966 [17 Dec., 1965], No. 54593/66. Heading B7H. [Also in Division F2] In an endless track vehicle which is steered by simultaneous operation of a de-clutching servo 13 or 14 and a brake servo 15 or 16 associated with a drum 11 or 12 on the appropriate side of the vehicle, under control of a steering valve 10 having manually-operated levers 45, 46 which operate separate valve elements to control hydraulic pressure in conduits 28, 29 leading to the respective servos on opposite sides of the vehicle, a valve assembly 17 is provided which, in response to hydraulic pressure in a pilot conduit 24 occurring when a gear is selected in a non - synchromesh hydraulically controlled gear-box through which the vehicle is driven, connects the conduits 28, 29 with corresponding conduits 26, 27 leading from the steering valve, but which during a change of gear or when the gear-box is in neutral cuts off these connections and simultaneously connects both conduits 28, 29 to pump 21 via an adjustable pressure reducer 19 so as to provide automatic braking of the vehicle to a selected degree in these circumstances. For this purpose, the assembly 17 comprises a spool valve 18 which is biased to the automatic braking position shown by a spring 23 and is movable to the steering position by pressure in the pilot conduit 24. In the latter position grooves 22A, 22B and 22C respectively connect pump 21 to the steering valve inlet conduit 25, conduit 26 to conduit 28, and conduit 27 to conduit 29, whereas in the former position shown conduits 25-27 are isolated and groove 22D connects pump 21 to the inlet side of a pressure reducing valve consisting of a piston 31 having a by-pass passage 37 closable upon movement of the piston away from an abutment 39 against which a pin 40 normally rests, the outlet 50 from the reducing valve being connected simultaneously by grooves 22C and 22E to both conduits 28, 29, so that both brakes are applied. The degree of braking is adjustable by a control knob 36 connected to a lever 34 having a cam portion acting on the cap 33 of a spring 32 biasing the piston 31 to the left. In order that the braking may be variable between zero and maximum and be co-ordinated with the operation of the clutch servos, the brake servos are double-acting, their pistons 43, 44 providing annular chambers of different effective area on opposite sides, the chambers 41, 42 of smaller area being constantly supplied with fluid at maximum pressure direct from the pump, while the opposing chambers are fed with the pressure controlled by either the steering valve 10 or the pressure reducer 19, the clutches controlled by the servos 13, 14 being arranged to be disengaged just before the brakes are applied.
Patent GB-1524683-A (GB)
Title: Termination of electric cables
IPC: H02G15/02
Filed: 1974-12-20
Abstract: 1524683 Terminating cables or conduits BICC Ltd 22 Dec 1975 [20 Dec 1974 23 Dec 1974 16 April 1975 14 Nov 1975] 55233/74 55480/74 15654/75 and 47113/75 Heading H2E The disclosure is incoporated wholly within that of divisional Specification 1,524,684, the claims being directed to a different aspect of the cable gland, and to a flameproof adaptor.
Patent GB-1496359-A (GB)
Title: Butadiene-styrene co-polymerization process and co-polymer produced thereby
IPC: C08F2/04
Filed: 1974-12-20
Abstract: 1496359 Butadiene-styrene copolymerization FIRESTONE TIRE & RUBBER CO 20 Dec 1974 [26 Dec 1973] 55265/74 Heading C3P Butadiene - styrene segmented copolymers having an essentially random, branched backbone with block polystyrene on the terminal positions and displaying improved green strength and running temperature (in a tyre formulation) properties is obtained by polymerizing a mixture of 40 to 85% butadiene and 15 to 60% stryene in an inert hydrocarbon in the presence of hydrocarbyl lithium initiator and at 90 to 175 C., the rate of addition of the mixture to the system being slow enough to ensure random copolymerization of at least 10% of the styrene, effecting the final 10 to 50% of the polymerization with a higher proportion of styrene present than is incorporated into the backbone, and completing the final 10% of the copolymerization with 50 to 100% styrene in the monomer mixture, to produce the required terminal polystyrene blocks. The increased amounts of styrene in the later stages may be achieved by adjustment of the earlier part of the polymerization to ensure build up of unreacted styrene, by adding a portion of styrene/butadiene monomer mixture in a single batch or by adding styrene abone. The process may be continuous and may be effected in more than one reactor, with vigorous stirring in the first reactor. Comparative procedures also illustrate the results obtained when the monomer mixture is all added as a single batch or is all added continuously at a slow rate.
Patent GB-1200478-A (GB)
Title: Process for the manufacture of a traveller for ring spinning frames or ring twisters
Inventor: REINERS WALTER
IPC: D01H7/60
Filed: 1967-12-06
Abstract: 1,200,478. Ring traveller. W. REINERS and S. FURST [trading as REINERS & FURST]. 6 Dec., 1967 [21 Dec., 1966], No. 55466/67. Heading D1D.  A ring traveller is produced by taking a shape 1 of plastics material formed in a known manner e.g. by injection moulding or casting and inserted a rod 1a to form means to resist the thread wear. The rod may be inserted in a bore formed in the plastics material or it may be pressed in, nail-like or it may be provided with a screw thread and screwed in. As shown the rod may have different diameter positions, which are joined by an intermediate surface arranged to match the associated shape of the plastics material. The rod is preferably introduced into a surface of the plastics material at right angles to the surface. The rod may made of steel and be chromium plated, polished or delustered; alternatively the rod may be of sintered ceramics.
Patent GB-1163957-A (GB)
Title: Improvements in or relating to Cutting Presses
IPC: C14B5/00
Filed: 1966-12-13
Abstract: 1,163,957. Cutting-out presses. BRITISH UNITED SHOE MACHINERY CO. Ltd. 13 Dec., 1966 [14 Dec., 1965], No. 55752/66. Heading B4B. A cutting press comprises hydraulic piston- and-cylinder means 44, 46 for moving a beam 40 towards a bed 16, whereby to effect a cutting stroke, and thereafter returning the beam to its rest position, and limiting means for adjustably limiting movement of the beam away from the bed whereby the rest position of the beam can be varied, the limiting means comprising a fixed abutment plate 20 associated with the bed 16, an abutment cylinder 66 associated with the beam 40 for movement therewith, and a plurality of superposed T-shaped abutment shims 90, Fig. 2, mounted on the plate 20 and movable selectively into and out of operative position in which they are interposed between the plate 20 and the cylinder 66. The cylinder 66 is secured to the lower end of a tube 60. The shims are pivotally mounted on an axis 76, Fig. 2, and movable clockwise to an operative position by means of springs 98 connected to the ends of the short arms 96 of the shims. The long arm 92 of each shim has a slot 94 engageable with the tube 60. The shims are selectively movable out of operative position by means of a shim stop lever 108, Fig. 2, urged downwardly by a spring 128 and having a shim stop 118 for applying counterclockwise pressure to intermediate legs 106 of the shims, the lever 108 being connected to a handle 104 through the intermediary of a shank portion 126 which is engageable with a comb 124 having a number of teeth equal to the number of shims. Each shim has a lug (100), Figs. 3 and 4 (both not shown), and a recess (102) on its upper and lower faces, respectively, so that when a shim moves to its operative position, it carries with it the shims thereabove to the operative position thereby providing a solid abutment to the cylinder 66.
Patent GB-1285714-A (GB)
Title: Production of silica gels
Inventor: HILL THOMAS
IPC: C01B33/152
Filed: 1968-11-25
Abstract: 1285714 Silica gel BP CHEMICALS Ltd 17 Nov 1969 [25 Nov 1968] 55796/68 Heading C1A A process for the production of silica gel comprises subjecting a densified silica sol to a hydrothermal treatment at a temperature of at least 100 C. A densified sol is defined as one which contains dense particles of colloidal silica, such a sol may be prepared by adding amorphous silica sol to a boiling "heel" of colloidal silica. A hydrothermal treatment is defined as heating the silica sol under such pressure that the water does not evaporate off. The hydrothermal treatment may be carried out so that silica sol remains at the end of treatment, the sol being afterwards converted to gel by evaporation, or gel may be formed during the hydrothermal treatment in which case the pH should be adjusted to between 6 and 7 beforehand and the upper temperature limit is 300 C. The treatment time may vary between 12 and 200 hrs. The sol concentration may vary between 5 and 30% wt. basis, the lower the concentration, the longer the treatment required. The hydrothermal treatment may be carried out in the presence of fluoride ions, a suitable source being ammonium fluorosilicate, the fluoride ions enabling the treatment to be carried out over a wider range of conditions. The amount of F- ion which may be tolerated depends upon the conditions in general, the lower the SiO 2  content of the sol, and the lower the temperature, the higher the quantity of F- ion which may be tolerated.
Patent GB-1436599-A (GB)
Title: Sorter control
IPC: B65H29/60
Filed: 1973-12-03
Abstract: 1436599 Delivering sheets XEROX CORP 3 Dec 1973 [4 Dec 1972 (2)] 55958/73 Heading B8R The subject-matter is the same as that of Specification 1,422,029, except that there is disclosed additionally override means which when actuated permits copies in addition to those programmed to be arranged in the sorter trays together with copies produced in a first programme, and means whereby, when said override means is actuated, copy sheets are fed to the xerographic machine from an auxiliary supply tray. The claims are directed to means for stacking copies in either collated or non-collated form, programming means to provide a pre-set number of copies, and means to prevent re-programming while a program is in process or copies therefrom remain in the sorter trays.
Patent GB-1299846-A (GB)
Title: Improvements in centrifugal pumps for pumping liquids containing solids
Inventor: LEHTINEN SULO ANTERO
IPC: F04D7/04
Filed: 1970-11-25
Abstract: 1299846 Centrifugal pumps S A LEHTINEN 25 Nov 1970 [3 Dec 1969] 55967/70 Heading F1C [Also in Division B2] In a centrifugal pump for liquids containing solids, comprising a pump housing 1 containing an impeller 2, the latter includes cutting blades 6 which extend through inlet opening 4 to the exterior of the housing and co-operate with blade bits 7 at the periphery of the opening 4 to cut up solids present in the incoming flow. Teeth 10 and an additional cutter 8 may be provided. Moreover, the impeller may have more than two cutting blades 6. The pump may be of the double-entry type with two sets of blades 6 attached to a single impeller.
Patent GB-1358702-A (GB)
Title: Ladder support
IPC: E06C7/46
Filed: 1971-05-06
Abstract: 1358702 Ladder support; universal joints T J LYONS SNR 6 May 1971 56443/73 Divided out of 1358701 Headings E1S and E2F The subject-matter of this specification is identical with that described in Specification 1358701, but the claims are concerned only with the universal joint feature of the ladder support.
Patent GB-1398879-A (GB)
Title: Cutting roller for a rubbish shredding machine
IPC: B26D1/36
Filed: 1972-12-07
Abstract: 1398879 Assembling cutting rollers BOHMTER MASCHINENFABRIK GmbH & CO KG 7 Dec 1972 [7 Dec 1971] 56539/72 Heading B3A [Also in Division B2] A method of assembling a plurality of cutters 20, Fig. 1, to a circular driving roller 21 to form a cutting roller of a rubbish shredding machine comprises inserting the roller through circular bores 27 formed in the cutters, supporting the roller in a jig, Fig. 3, to relatively position the cutters and roller, and after positioning the cutters applying a bonding material between the bores of the cutters and the roller. Each cutter has a shaped recess 23, e.g. triangular, Figs. 2, 11 (not shown), for receiving a correspondingly shaped projection 22 formed on a neighbouring cutter to allow the positioning of neighbouring cutters at predetermined displacement angles. The jig comprises three rotatable pillars 1, 2, 3 which carry brackets 5 displaced at a predetermined angle to each other. The roller is placed on a central pin 17 and held in position using a device 18. The brackets are moved away from the middle of the jig and the cutters are threaded on to the roller. The pillars are rotated and locked using a pin 8, the machined face 26 of each cutter being placed upon support points 19 and held against rotation by stops 6. When all the cutters are assembled a plate 11 is lowered and the roller centred using a screw 14 and the spring-loaded pin 17. The cutters are then joined to the roller by filling the spaces 24 therebetween with casting resin adhesive. In an alternative embodiment, Figs. 5, 6 (not shown), cutters (32), (33) are assembled in pairs. Each cutter has a planed surface (32a), (33a) held against respective plates (30), (41), rough surfaces (32b, (33b) contacting each other with connecting bolts (39), (40) placed between the cutters in recesses (35)-(38). Two balls (44), (45) are held in holders (46) and maintain the plates (30), (41) in parallel relationship. The two plates are pressed together and casting resin is placed in a space (52) between the cutters. The roller surface and the bore surfaces can be altered to improve the bonding between the roller and cutters. Crossed helical grooves may be cut into the cutter bores and roller surface, Fig. 7 (not shown), or transverse grooves in the roller and matching grooves in the cutter bores, Fig. 8 (not shown). The grooves may also be trapezoidal or curved in section, Fig. 9 (not shown), as well as straight-sided. In a preferred embodiment crossed, helically rounded grooves (65), (66), Fig. 10 (not shown), are utilized. The grooves may be formed during the casting of the cutters, which are then hardened, and by the machining of the roller 21. The crossed grooves modify the loading on the finished knife roller.
Patent GB-1399100-A (GB)
Title: Isolation and purification of water-soluble dyes
IPC: B01J19/00
Filed: 1971-12-07
Abstract: 1399100 Purification of dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Dec 1972 [7 Dec 1971] 56743/71 Heading C4P Water-soluble dyes are isolated from pastes containing the dye and an aqueous solution of an inorganic salt, by displacing the aqueous solution from the paste by washing with a watermiscible organic solvent, slurrying the mixture of dye and solvent with water, removing solvent by steam distillation and recovering the dye by spray drying the resultant solution or suspension. Pure dyes containing a reduced salt content are obtained. In examples the purification of monoazo food dyes using propanols as solvents is described.
Patent GB-569804-A (GB)
Abstract: 569,804. Gyroscopic apparatus. JACK & HEINTZ, Inc. Nov. 15, 1943, No. 19016. Convention date, Nov. 14, 1942. [Class 97 (iii)] A gyro wheel comprises a light body casting 11 including peripheral buckets 8 and metal rim portions 12 of higher specific gravity. The casting 11 may be made of aluminium or magnesium and the rim portions 12 of tungsten.