baber/WOPTO huggingface dataset:
Patent GB-1413163-A (GB)
Title: Method and apparatus for the extrusion of plastics net and net- like structures
IPC: B29C48/09
Filed: 1972-10-10
Abstract: 1413163 Plastics nets by extrusion CONWED CORP 10 Oct 1972 46559/72 Heading B5A In the formation of a plastics tubular net structure, e.g. of polypropylene, and of circular, square, or rectangular section, longitudinally extending net strands are continuously delivered from one set of extrusion die passages, and strand formations extending transversely thereto, are intermittently delivered on one or both sides thereof to become welded to the longitudinal strands, from between die forming surfaces which are intermittently moved between a closed abutting, and a spaced apart position to extrude the transverse strands. The transverse strands are brought into welding contact with the longitudinal strands by the force of their extrusion, and by the force of the squeezing action of the forming surfaces moving into contact. The longitudinal and transverse strands may comprise plastics from different extrusion sources or, as described, from the same source. In the Fig. 2 embodiment, the longitudinal strands 16 are vertically extruded from circumferentially spaced passages 14 of a die member 12, and the transverse strands 22 from between forming surfaces 19, 20 defined on die member 12 and a die member 11, either or both of which effect vertical reciprocation between a spaced apart, and an abutting position to extrude the transverse strands 22. In this embodiment the surfaces 19, 20 are inclined towards the direction of extrusion of the strands 16, but in the Fig. 1 embodiment (not shown) are at 90 degrees thereto. The surfaces 19, 20 alternatively be located exteriorly of the passages 14. Leakage of polymer along the reciprocating die parts is minimized by drain holes 26. The Fig. 3 embodiment (not shown) is similar to the Fig. 2 embodiment, but a flange on the die part (11) extends above the passages (14) and is provided with semi-spherical projections (28) which aligned with the passages (14), and act to decrease the extrusion therethrough during extrusion of the transverse strands, to provide a thinner joint at the junction between the strands. In the Fig. 6 embodiment, the forming surfaces 19, 20 are located exteriorly of the passages 14, and extend to the pitch circle of the passages 14 between the passages 14, but are cut away at 31 around the outlets 30 of passages 14, to produce the net section of Fig. 7. In this embodiment, thinning at the strand junction is obtained due to upward movement of orifices 14 during separation of surface 20 from surface 19. Welding between the strands may be enhanced by extrusion around a mandrel effecting stretching.
Patent GB-1385627-A (GB)
Title: Animated toy
IPC: A63H11/08
Filed: 1973-10-05
Abstract: 1385627 Dolls &c M I GLASS [trading as MARVIN GLASS & ASSOCIATES] 5 Oct 1973 [21 Dec 1972] 46655/73 Heading A6S A doll, &c has a body inside which is an interior compartment containing a weight shiftable by gravity to move the doll, &c from a first to a second position, the speed of shifting of the weight being restrained so that the doll, &c moves slowly. As shown, the weight is a granular material such as sand 38, within a compartment 36 in the torso of a doll 10. When the doll is positioned as shown in Fig. 3, the sand flows out of the compartment 36 and slowly past a flow-retarding flap valve 40 into the doll's head 20. After sufficient sand 38 has flowed into the doll's head 20, the change in position of the centre of gravity of the doll 10 causes it to stand on its head, flip its legs over, and land flat on its back, Fig. 1 (not shown). The doll 10 is then held vertically, Fig. 2, so that the flow-retarding flap valve 40 opens and allows the sand 38 to run quickly back into the compartment 36, ready for its next operation. The torso 12 of the doll consists of a flexible cover 32 within which foam rubber 30 holds the compartment 36. Similarly constructed legs 16 are connected by stiches 62 to the body, to allow pivoting movement. A crossbar 70 across the top of the compartment 36 journals on pins 68 at its ends frame bars 64, constituting the doll's arms, enclosed within loose covering 18 and formed with hand simulating pads 72. The doll's head 20, enclosed within a hood 26, has a boss 28 which engages a supporting surface as the doll stands on its head.
Patent GB-1006811-A (GB)
Title: Improvements in or relating to ceramic capacitors
IPC: H01G4/32
Filed: 1963-11-26
Abstract: 1,006,811. Capacitors. CANADIAN PATENTS & DEVELOPMENT Ltd. Nov. 26, 1963 [Nov. 28, 1962], No. 46690/63. Drawings to Specification. Heading H1M. In a process for making ceramic dielectric capacitors, alternating layers of metallic electrode coatings and ceramic dielectric slip are applied to an organic carrier film which is water impervious, and the capacitor units so produced are fired so as to sinter the ceramic and volatilize or burn out the film. A film of polyethylene terephthalate is suitable for use as the organic carrier, and may be coated with the ceramic slip by being dipped into a suitable ceramic suspension (described in detail in the Specification) and slowly withdrawn. Suitable ceramic materials include barium, calcium strontium and/or lead titanates and/or zirconates and titanium dioxide. To the coated film is applied a palladium paste, which is deposited by the silk screen process on either side of the film, and dried. After a soaking in water the structure is dipped again into the ceramic slip to completely coat the electrodes. Thereafter, either tubular or flat plate capacitors may be formed from the structure, and the shaped capacitor fired, so as to sinter the ceramic and burn out the carrier. Silver terminations may finally be fired on to the structure where appropriate.
Patent GB-1268970-A (GB)
Title: Stocking and method of making same
IPC: D04B9/56
Filed: 1969-09-23
Abstract: 1,268,970. Knitting. NORTH AMERICAN ROCKWELL CORP. 23 Sept., 1969 [29 Nov., 1968], No. 46892/69. Headings D1C and D1K. A seamless stocking is knitted as a tube with a tubular double ply portion projecting from the end, the first ply 22 having an inner terminal course 28 connected to the tube and the inner terminal course 30 of the second ply 27 and the outer terminal courses of the double ply portion including a draw yarn 35 by which the toe is closed. The stocking has a turned welt of heavy yarn and a leg and foot of relatively light yarn, the heel pocket being formed e.g. by reciprocatory knitting and of heavy yarn. The toe 17 comprises a single ply portion 20 e.g. of heavy yarn and a two-ply portion 21 of light weight yarn. The stocking may be knitted on a single cylinder machine with a welt dial 43 and main yarn guides 46 and auxiliary yarn guides 50 at stations 45, 47. The portion 20 is knitted at both knitting stations after which alternate needles 37a hold the stitches of course 26 while needles 37b knit at both knitting stations to complete the inner ply 22. A course is then knitted at the main station 45 preferably from a heavy yarn, to form draw thread 35. Course 32 is then knitted at main station 45 and then every other needle 37b, viz. needles 37c, is raised to tucking height at the auxiliary station to take the heavy yarn 35 while the remaining needles remain in non-knitting position after which courses 33 and 64 are knitted at the main station on all needles 37b to interlace yarn 35. The yarn finger feeding heavy yarn 35 remains in active position at the auxiliary station and, as ply 27 is knitted at the main station on needles 37b, the yarn 35 is drawn out of courses 32, 33 to form these courses into a tight bunch to close the toe. When ply 27 is complete, a course is knitted on all needles 37a, 37b at station 45 and then at station 47 to form a course of yarn 35 and then a few ravel courses to complete the stocking. In a modification, yarn 35 may be knitted into every other needle in course 33. The long float of yarn 35 extending on the outside of ply 27 may be caught in at intervals. A machine with more than two knitting stations may be used.
Patent GB-1420204-A (GB)
Title: Closure assemblies for tubular envelopes of electric discharge  lamps
IPC: H01J61/36
Filed: 1972-10-11
Abstract: 1420204 Ceramic-metal seals GENERAL ELECTRIC CO Ltd 5 Oct 1973 [11 Oct 1972] 46907/72 Heading B3V [Also in Division H1] A closure member for the tubular alumina envelope 1 of a high-pressure metal-vapour lamp comprises an outer cap 4 and an inner member 6 including a cylindrical portion 16 adapted to fit closely within the alumina tube but separated by a gap from the interior surface of the cap 4 adjacent the envelope 1. The cylindrical portion 16 shields the seal 12 between the cap 4 and the tube 1 from the discharge while the gap prevents sealing material from entering the narrow space between the portion 16 and the tube 1. The cap 4 and member 6 are formed from Nb sheet and the seal 12 is a Zr-Ti-V alloy which may initially be in the form of three washers of the respective component metals. Recessed portions 8 and 14 of the cap 4 and member 6 enable their central regions to be brought together while maintaining the required gap at their outer regions. Alternatively the portion 16 of member 6 may be a solid cylinder or a hollow cylinder closed at both ends. A Nb connection tag 20 is brazed to the cap 4. A similar cap 5 and inner member 7 at the other end of the lamp have enlarged central apertures accommodating a Nb exhaust and filling tubulation 21 supporting and acting as a connection to an electrode 3. The filling may be sodium, xenon and mercury at a pressure exceeding 400 torr. The lamp includes a cylindrical glass outer envelope (not shown).
Patent GB-1511069-A (GB)
Title: Teleprinter housing
IPC: B41J29/08
Filed: 1976-11-11
Abstract: 1511069 Typewriters INTERNATIONAL STANDARD ELECTRIC CORP 11 Nov 1976 [15 Nov 1975] 46971/76 Heading B6F A sound deadening housing for printing apparatus such as teleprinters comprises a tiltable hood 2 having an opening to permit paper to issue from the printing apparatus, the opening being sealed, when the hood is closed, against egress of noise by a sealing member 10 having two resilient legs 10a, 10b. The arrangement is such that paper can issue straight out of the apparatus as at 9, and can also issue by forming a loop even if caught up as at 91.
Patent GB-1219527-A (GB)
Title: Improvements in or relating to investment casting
IPC: B22C9/04
Filed: 1969-09-24
Abstract: 1,219,527. Chaplets; core-supporting patterns; mould and core materials. T.R.W. Inc. 24 Sept., 1969 [1 Oct., 1968], No. 46994/69. Heading B3F. [Also in Divisions B5 and C3] A hollow casting is made by forming about a ceramic (fused silica) core 15, a low melting pattern 11 (of wax, polystyrene &c.) and then, to secure the core 15 against movement, pins 16, preferably heated, are inserted through the pattern 11 to engage the core surface before a ceramic shell mould 19 is formed around the pattern to anchor the pin ends while the pattern is melted out; molten metal is then poured into the cavity so created and the exposed parts of the pins 16, e.g. of the same metal, melt into the metal before it solidifies and the mould and core are removed. The shell mould 19 is formed by steps of dipping, dusting and drying (see Division B5).
Patent GB-1172284-A (GB)
Title: Insulated Metal Cup for Vacuum Bottle
IPC: A47J41/00
Filed: 1967-10-16
Abstract: 1,172,284. Cups. ALADDIN INDUSTRIES Inc. 16 Oct., 1967 [19 Oct., 1966], No. 47055/67. Addition to 1,123,283. Heading A4A. [Also in Division F4] A insulating cup for a vacuum flask comprises a metal outer shell 23 and a plastics liner 24 each having tapering wall portions 27 and 34 and substantially cylindrical upper wall portions. The liner has an outwardly directed flange 36 which enjoys the outer shell and an adhesive sealing composition 41 is provided between the cylindrical portions of the shell and liner and in an undercut groove of the flange 36. The tapered portion of the liner has a maximum diameter which is less than that of the cylindrical portion and the two are joined by a wall portion 35a so that an excess of sealing composition may be used without interfering with the insulation provided by an air space 42. The liner is formed with a screw thread 39 and the shell has external grooves 30. The liner may be made of polyethylene, polypropylene, polystyrene or a copolymer of polypropylene and polyethylene, and the sealing composition may be an epoxy resin.
Patent GB-1270069-A (GB)
Title: Gastight seal for two vessels
IPC: G21F5/12
Filed: 1970-10-05
Abstract: 1,270,069. Glove boxes. KERNFORSCHUNG m.b.H. GES FUR, and H. R. SCHRADER. 5 Oct., 1970 [4 Oct., 1969], No. 47182/70. Heading B4Q. An arrangement for transferring substances between a vessel 1 closed by a cover 11 and a glove box 3 having a flange 2 closed by a cover 8, comprises supporting the vessel by a device 4 so that an annular seal 10 abuts a surface 9 of an inwardly-directed ridge 5 formed on the flange. A rim 12 of the cover 11 also abuts the seal 10 and is held in place by the threaded pin 19 of a coupling part 18 rotatably supported in a bush 32 fixed to the cover, the pin 19 cooperating with a nut 35 fixed to a lower cover 14. Inclined edges 15, 13 of the covers 11, 14 form a conical section groove 16 receiving an endless helical spring 13 under tension whereby when the pin 19 and nut 35 clamp the covers 11, 14 together the spring is forced into a groove 20 in the vessel 1 as shown so that the covers are retained on the vessel. The cover 8 has an annular seal 7 held by a tubular member 24 against a surface 6 of the ridge 5. The member 24 is connected to a lever 25 having a pivot 26 and retained in the clamping position shown by a releasable lug 29. A spindle 22 mounted for rotary and rectilinear motion in the member 24 extends through a packing 30 effecting a gastight seal with the cover 8, an internally threaded member 31 on the end of the spindle co-operating with an external thread on the bush 32 when the spindle is pushed inwards and rotated by a handle 23. At the same time a spring-loaded coupling 33 rotatable with the spindle 22 is connected to the coupling part 18. The parts 31, 32 have a thread of the opposite hand to the thread of the parts 19, 35 so that as the rim 12 is drawn against the seal 7 the lower cover 14 is moved away from the cover 11 and the spring 13 retracts out of the groove 20. The lug 29 is released, the lever 25 moved horizontally a short distance and the pivot 26 moved along a slot 27 so that the covers 8, 11, 14 are withdrawn into the glove box 3.
Patent GB-1286655-A (GB)
Title: Hydrostatic transmission with pressure control
IPC: F16H61/46
Filed: 1969-09-25
Abstract: 1286655 Hydrostatic transmission control HYSTER CO 25 Sept 1969 [16 Oct 1968] 47288/69 Heading F2D An hydrostatic transmission for a lift truck comprises a variable displacement axial-piston pump 14 and a similar fixed or variable motor 24, the displacement of the-pump being effected by a servo 36 controlled by a valve 52 subjected to opposed signals 54 responsive to pump delivery pressure and a spring 66 loaded by a piston 50 responsive to engine speed. The engine speed signal is derived from an enginedriven pump 16 and the piston 50 is subjected to the pump 16 pressure on opposite sides of a restriction 62. The piston is also controlled by a valve 72 which may be positioned by a vehicle brake signal 76 to provide inching control. Again, a signal 88 acts to position valve 72 to cut back the displacement of pump 14 when the hydraulic accessories are connected in by valve 84 to be powered by an engine pump 18, and the total load on the engine is excessive. The accessories are thus given priority over the vehicle drive. A pressure relief valve 90 and a reversing valve 32 are provided. Again, a reversible pump may be used.
Patent GB-1436198-A (GB)
Title: Installation for assembly of movable of dynamic loudspeakers
IPC: H04R31/00
Filed: 1973-10-10
Abstract: 1436198 Soldering; shearing G B PANTELEEV 10 Oct 1973 47376/73 Headings B3R and B3W [Also in Divisions H4 and H2] In apparatus for assembling the movable system of a moving coil loudspeaker, the wire 190 leading from the voice coil is abraded between two elastic abrasive wheels (200) (Fig. 15, not shown), is then wetted with a flux applied from a bath (214), Fig. 16 (not shown) applied by porous rubber element (221), and is subsequently tinned. Subsequently the wire 190 (Fig. 18) is cut by two knives 235, 242. A roller 236 rolls off the projection 239 of a rotating cam 237, causing a member 233 to be lowered and knife 235 to be brought against a portion of wire 190. A spring 238 assists. At the same time a push rod 244 sliding over the face of a cam, and urged by a spring 246, moves on to a projection (not shown) as a result of which push rod 244 moves horizontally to displace a lever 241 secured at pivot 240. Thus the two knives 242, 235 are brought together and the wire 190 is cut. During further rotation of cams 237, 247 the knives 235, 242 are returned to their initial positions.
Patent GB-1074327-A (GB)
Title: Process for the preparation of stable cation-active polymer dispersions and substances suitable for use in the process
IPC: C08F2/28
Filed: 1963-12-02
Abstract: Stable, cation-active polymer dispersions are prepared by emulsion polymerizing an ethylenically unsaturated polymerizable compound or a mixture of two or more ethylenically unsaturated polymerizable compounds or a mixture of an ethylenically unsaturated polymerizable compound with an ethylenically unsaturated compound copolymerizable therewith in the presence of a free-radical forming polymerization catalyst, a cationic dispersion agent and a protective colloid consisting of an aqueous solution of a water-soluble salt of a polymer prepared from a product obtainable by the reaction of an unsaturated epoxide with a secondary amine or aminoalcohol.  In examples dispersions are prepared from vinyl acetate, vinyl laurate, vinyl chloride, methyl methacrylate or mixtures thereof using potassium persulphate or tertiary-butyl hydroperoxide as polymerization catalysts, and protective coloids consisting of products formed by polymerization with potassium persulphate the acetic or phosphoric acid salts of reaction products of glycidyl acrylate or methacrylate and diethylamine or diethanolamine, optionally with subsequent quaternization with dimethyl sulphate. The dispersions obtained above may be cast into films or added to cellulose fibre slurries.ALSO:Stable, cation-active polymer dispersions prepared by emulsion polymerisation of vinyl acetate or vinyl laurate in the presence of a protective colloid consisting of an aqueous solution of a water-soluble salt of a polymer prepared from a product obtainable by the reaction of an unsaturated epoxide with a secondary amine or amino-alcohol (see Division C3) are added to cellulose fibre slurries.
Patent GB-1245558-A (GB)
Title: Improvements in or relating to subsoilers
Inventor: PARKIN JOHN HOWARD
IPC: A01B15/02
Filed: 1970-10-08
Abstract: 1,245,558. Subsoilers. PARKIN ENG. Ltd. 8 Oct., 1970, No. 47877/70. Heading A1B. A point for a subsoiler blade comprises a shank 1 of rectangular section and bevelled at the end 4 to form an edge 5, and has a tip 2 extending centrally from and beyond the end 4 as shown in Fig. 1, the tip also being of rectangular section smaller in area than the section of the shank 1.
Patent GB-1331766-A (GB)
Title: Apparatus for the production of glass filaments
IPC: C03B37/03
Filed: 1970-10-08
Abstract: 1331766 Drawing glass fibres GLASWERK SCHULLER GmbH 8 Oct 1970 [13 Nov 1969] 47988/70 Heading C1M Apparatus for the manufacture of glass fibres in which the fibres are drawn off by a drawing drum 9 which rotates at a high speed and in which the drop 5 and associated "spear" of a newly-formed fibre 4 is separated from the fibre by a "doffing" device 6 which device also draws the fibre to its desired fineness after which the fibre is picked up by the rotatory blast generated by the drawing drum 9, further includes a surface 13 or 28 movable between operative and inoperative positions which in its operative position deflects all the fibres on to the "doffing" device 6. The surface may be a tiltable sheet metal strip 13 secured to a rod 14 each extending parallel to the drawing drum axis, one end of the rod being secured to a sliding sleeve 16 slidably mounted on a horizontal guide bolt 17 extending at right angles to the drum axis. Alternatively the surface may be an apron 28 hinged to a frame of the apparatus at 27, the free edge of the apron being responsible for deflecting the fibres and being movable in a circular arc between operative and inoperative positions.
Patent GB-1126620-A (GB)
Title: Improvements in or relating to methods and apparatus for applying powder coatings to articles
Inventor: WALLIS NEIL RUDOLPH
IPC: B05B14/48
Filed: 1965-11-12
Abstract: 1,126,620. Coating apparatus. AEROCOAT S.A. 9 Nov., 1966 [12 Nov., 1965; 10 Dec., 1965; 18 March, 1966], Nos. 48020/65; 52534/65 and 11895/65. Heading B2L. In applying powder coatings to articles, the articles are conveyed through an enclosure 1, 2, 3, 4, provided with entry and exit openings 7, 8 through a plurality of streams of coating powder (from sprays 28, 29, 30, 31, 32, 33) forming with the air in the enclosure a fine cloud of the powder particles, the said cloud is maintained in continual rotational movement in the enclosure (arrows C) and the escape of powder not adhering to the articles is restrained by an inward flow of a gaseous medium through each of said openings. Preferably a reduced pressure is maintained in the enclosure by extracticn fans 105, 106, 107, 108 so that atmospheric air is drawn in through openings 7, 8 thus preventing escape of coating powder. The powder/air mixture withdrawn by each fan is divided into two sub-streams, one being exhausted to the atmosphere through .suitable filter means to retain the powder and the other is returned to the enclosure through manifold pipes 121, 122, 123, 124 and guided by suitable baffles 140, 142; 144; 145; 141, 143 respectively to produce a rotational motion to the medium within the enclosure. Corner baffles 146, 147, 148. 149 also assist in the rotational movement and provide pockets 151, in which the air is relative quiescent, for suction manifolds 150 of the extraction fans. Each spray unit is fed with coating powder from supply troughs 11, 12, 13, 14. these being of inverted trapezium shape with a discharge box 15, 16. 17, 18 at the base each of which has means for imparting vibration to the powder. The spraying heads are operated by compressed air and may be electrostatically charged relative to the articles to be coated. Further they may be moveable axially to adjust their working position. The bottom of the enclosure is V-shaped to form a trough 10 into which particles which do not adhere to the articles gravitate. Such particles are removed from the trough by suitable air ejectors and recycled to the spraying heads. The articles to be coated are conveyed through the enclosure on suitable hangers suspended from an overhead conveyor, the top of the enclosure having overlapping flexible strips 190, 191 (Fig 2, not shown) to allow the hangers to pass through.