baber/WOPTO huggingface dataset:
Patent GB-1288032-A (GB)
IPC: H02M7/51
Filed: 1968-07-05
Abstract: 1288032 Converting DEFENCE SECRETARY OF STATE FOR 6 Oct 1969 [5 July 1968] 32213/68 Heading H2F In an inverter or frequency changer for supply of power to an induction heater in which current in an inductor is alternately switched to opposite sides of a centre-tapped transformer, the inductor includes an isolated secondary winding across which an impedance may be switched when starting or shutting down the system. As shown, the starting impedance may be a resistor 77 switched across the secondary by a transistor 81, thyristor 83 or a cadmuim vapour discharge tube 85. Alternatively the circuit may include a capacitor 89, previously charged from 93 and discharged via the secondary winding when thyristor 91 is triggered. The supply to the thyratron inverter (Fig. 1, not shown) may be obtained from a three-phase bridge rectifier having a separate inductor in each phase, the secondary of which is loaded as previously described. The output of the rectifier may be loaded with a series arrangement of resistance and capacitance having specified relationship to the load.
Patent GB-1290232-A (GB)
IPC: B28B23/02
Filed: 1970-05-15
Abstract: 1290232 Casting concrete HUME Ltd 15 May 1970 [16 May 1969] 23781/70 Heading B5A In a method of casting concrete including a high aluminous cement the base and walls of the mould are impermeable to air and sealing means (not shown) are provided where the upper surface of the concrete mass intersects the inner surface of the mould. The mould walls and base may be polished, plated or lined with inserts of hard plastics, stainless steel or glass fibre. Concrete reinforcing bars 16, Fig. 1, may be suspended by wires 18 from cross bars 20 at the top of the mould. The concrete mix may include expanded clay or shale, sintered, pulverized fly ash, talcum powder, magnesium silicate powder, ground clay or mineral dust. Products may be wall facings, panelling tunnel liners, tombstones, sanitary ware, tubs, troughs and sinks.
Patent GB-1290738-A (GB)
IPC: G02B13/08
Filed: 1970-04-20
Abstract: 1290738 Anamorphosing optical systems UNITED ARTISTS THEATER CIRCUIT Inc 20 April 1970 18816/70 Heading G2J An anamorphosing, focusable optical system 10, Fig.1 includes a master focusinglens 20 which is axially adjustable to maintain a focused relationship between an object and a film plane 11, an anamorphosing lens 25 comprising sections 26, 27 and having a horizontal to vertical "compression ratio" greater than unity, and an axially movable anamorphic focusing lens 30 having a compression ratio substantially equal to that of lens 25. Lenses 20, 25 are of standard design, and lens 30 comprises at least one  cylindrical lens 32, and either a spherical lens 31 or another cylindrical lens with axis normal to that of lens 32. An axial positioning means links the master and the anamorphic focusing lenses whereby axial adjustment of one effects a corresponding movement of the other, so that optimum focus may be achieved with the least aberration and in particular with no astigmatism An optional power compensation lens 35 may be provided to maintain a constant size of field.
Patent GB-1296516-A (GB)
IPC: B61D19/00
Filed: 1970-02-19
Abstract: 1296516 Wagon doors H N K PATON 19 Feb 1970 [2 May 1969] 8023/70 Heading B7L [Also in Division E2] A boxcar 1 comprises a body having a, side opening, an upper rigid closure section 5 and a lower rigid closure section 6, which sections extend the full length of the opening and may be moved substantially out of registry with the opening by means of closure-hoisting lines 17, 17<SP>1</SP> attached to projections 18 of the lower edge portion of each end of the section 6, the line 17 passing over an idler pulley 19 mounted on an upper thrust plate 20 rigidly attached to the boxcar 1 which plate 20 limits lengthwise movement of the section 5. The line 17 extends downwards from the pulley 19 to a second pulley 21 and thence to a hoisting line drum 22, the drum 22 being driven by an endless chain 23 extending around sprockets 24, 25 mounted upon the drum shaft and on an actuator drive spindle 26 respectively. Lower thrust plates 27 limit lengthwise movement of the section 6 and have inwardly inclined edge portions 27<SP>1</SP> to engage a rod 18<SP>1</SP> projecting lengthwise of the car 1 from the lower edge portion of the section 6 so that it is wedged outwardly of the section 5 as the section 6 is hoisted. In order to shift the upper edge portion of the section 6 outwardly of the section 5, a cam follower roller 28 is mounted on an end edge of the upper portion of the section 6 and is engaged between flanges of a channel cam track 29 mounted on an end portion of the section 5. Swinging guide arms 33 which have their lengths extending transversely of the boxcar 1 have one of their ends hinged at 34 to boxcar roof 35. The other (swinging) end of each arm 33 is hinged to the upper portion of the section 5 at 36. A counterweight 17<SP>11</SP> can be attached to the line 17 between the pulleys 19 and 21 to reduce the load to be applied to the spindle 26 for hoisting the sections 5 and 6. In a further embodiment described with reference to Fig. 8, the line 17 is replaced by a screw actuator. A screw 37 is disposed with its length upright and with its upper end mounted in a bearing on the car frame and a travelling nut 39 is moved along the screw 37 by rotation of an actuator drive spindle 40 turning angle gearing 41. An arm 42 projects transversely of the screw 37 from the nut 39 and has in it a slot 43 extending lengthwise of the arm in which the projection 18 of the lower portion of the section 6 is engaged. In a still further embodiment described with reference to Fig. 9, the projection 18 is connected to an endless chain 44<SP>1</SP> which extends around sprockets 45, 47. A ratchet pawl 50 co-operates with a gear mounted on the same shaft as the lower drive sprocket 47 so as to hold the sections 5 and 6 in any elevated position. In a fourth embodiment described with reference to Fig. 10 (not shown), the sections 5 and 6 are hoisted by means of jacks.
Patent GB-1297550-A (GB)
IPC: C08L27/00
Filed: 1970-12-16
Abstract: 1297550 Organotin stabilizer for halopolymers M & T CHEMICALS Inc 16 Dec 1970 [17 Dec 1969] 59762/70 Heading C3P A heat-stabilizer for halogen-containing polymers comprises a mixture of (i) an organo-tin compound having one direct carbon-to-tin bond, one direct halogen (other than fluorine)-totin bond and two direct sulphur-to-tin bonds end (ii) a compound of formula R 2 Sn(SR<SP>1</SP>) 2 , wherein each of R and R<SP>1</SP> is alkyl, cycloalkyl, aryl, alkaryl or aralkyl, R<SP>1</SP> alternatively being a radical of formula -R<SP>8</SP>-COOR<SP>9</SP> where R<SP>8</SP> and R<SP>9</SP> are hydrocarbon groups. The polymer may be P.V.C. or polyvinylidene chloride, or copolymers of vinyl chloride or vinylidene chloride with other ethylenically unsaturated monomers such as vinyl acetate. The stabilizer (i) is preferably of the formula wherein R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>7</SP> are hydrocarbon groups, R<SP>3</SP> and R<SP>4</SP> alternatively being radicals of formula -R<SP>5</SP>-COOR<SP>6</SP> where R<SP>5</SP> and R<SP>6</SP> are hydrocarbon groups, and X is Cl, Br or I.
Patent GB-1304605-A (GB)
IPC: B23G7/00
Filed: 1970-05-15
Abstract: 1304605 Thread rolling screws and taps STANDARD PRESSED STEEL CO 15 May 1970 23536/70 Heading B3N  A thread rolling screw fastener comprises a shank having a pilot end 28, the pilot end has a plurality of thread rolling protrusions, e.g. 30, 32, which rise from and fall back to the pilot diameter. Preferably there are two pairs of protrusions, each pair being spaced apart an integral multiple of the pitch of the thread to be rolled; the protrusions of each pair are diametrically oppositely disposed on the pilot end and each is co-extensive with the lead and pitch of the thread to be rolled. A protrusion can cover an angle of arc between 70 and 150 degrees. Protrusions 32, 32a extend further radially than protrusions 30, 30a and provide the final shape of rolled thread. Due to the elasticity of the metal being formed the protrusions may initially roll a thread having a root diameter greater than required. This also provides a self-retaining feature so that a fastener cannot be removed from the threaded hole. The final thread form may be made to give a free running fit between the threads of a fastener or, an interference fit, the latter giving another self-retaining feature. Protrusion 32a has an additional inclined surface 58 which effects the final displacement of wall material to form the final thread root clearance so that the crest thickness of the threads of the fastener fit freely therein. The pilot end may include a knurled facing, Fig. 18 (not shown), to remove any surface coating in a hole ready for the thread rolling. The pilot end may be a plain cylinder with the protrusions thereon, Fig. 17 (not shown). A cupped indentation 31 is formed in the end of the fastener member to define a thin edged cutting ridge 33 which can be used as a punch to form a hole in sheet material that can then have a thread rolled therein.
Patent GB-1305582-A (GB)
IPC: E06B3/40
Filed: 1970-01-24
Abstract: 1305582 Pivoting windows ANDREW BATHGATE 2 Oct 1970 [24 Jan 1970] 3555/70 Heading E1J A bar member for attachment to the wooden sash or frame of a pivoting window comprises a base web 1, three walls 3, 4, 5 extending from the edges and an intermediate point of one side of the web, flanges 8, 6 on the free ends of walls 3, 5 overlapping with clearance. Above a central horizontal pivot (Fig. 4) such members are positioned on facing surfaces of both sash and frame, and on closing of the sash flanges 6 enter between flanges 6, 8 on the other member and compress resilient sealing material 9, e.g. polyurethane foam. Below the pivot (Fig. 3) a portion 1, 36 of the sash member is separated from the remainder and attached to the frame member. The bar member are of Al or plastics.
Patent GB-1314772-A (GB)
Title: Door or panel
IPC: E06B3/88
Filed: 1971-01-13
Abstract: 1314772 Joints ALSTONS (LONG MELFORD) Ltd 17 Dec 1971 [13 Jan 1971] 1703/71 Heading A4H [Also in Divisions B5 and E1] A door or other panel comprises a planar member 1 with a facing sheet 7 held on one side by a holding member 12 of T-section having its central limb in a groove 4 in the edge of the planar member and a flange 13 on one side limb engaging over the edge of the facing sheet, the ends of adjacent holding members being received in corner pieces 5. The corner piece is recessed at its ends and has a flange 6 covering flange 13. Parts 12, 5 and 7 are of plastics. Core 2 is covered by a veneer 3.  (For Figure see next page)
Patent GB-1316960-A (GB)
Title: Handling arrangements
IPC: B65B5/10
Filed: 1969-10-14
Abstract: 1316960 Arranging components in sequences MARCONI CO Ltd 28 July 1970 [14 Oct 1969] 50344/69 Headings B8C and B8S Different components B, C, D may be inserted into an output magazine 1 in a predetermined sequence, e.g. B 1 , C 1 , D 1  by placing input magazines 2, 3, 4 respectively containing similar components in a channel 13 so that the lowermost component, e.g. B 2 , C 2 , D 2  in each input magazine may be propelled by a slide bar 12 through appropriate apertured magazine walls 5 to a deflector 6 attached to the walls 4 of the magazine 1 where each component, e.g. B 2  is directed upwardly in turn to raise the lowest component, e.g. D 1  and enter the magazine 1. Each component may have a pair of bevelled edges to assist entry into the magazine 1. The walls 14 of magazines 2, 3, 4 are inserted in channel slots 7 so that the input magazines 2-4 are lower relative to the magazine 1. The latter may be of identical construction to the magazines 2, 3, 4 and is prevented from movement along the channel by a stop 8. To ensure correct orientation, each component has a recessed edge engaging with a magazine rib 10. Each stack of components has a rod weight 11 placed thereon. A second embodiment (Fig. 3) is described wherein a row of three input magazines (3, 5, 7 and 4, 6, 8) is placed on each side of a common channel (23), each input magazine being provided with a device (12) for propelling a component into the common channel (23) where it may be transported pneumatically to either of two output magazines (1, 2) provided with devices (12) for propelling components into either of the out-put magazines from the common channel.
Patent GB-1321248-A (GB)
Title: Windows or door structures
IPC: E06B3/30
Filed: 1970-10-05
Abstract: 1321248 Covered door and window frames/ structures J L NETTELBERG 5 Oct 1970 47316/70 Heading E1J [Also in Division F4] A window or door structure including a wing, e.g. the double sashes 1, 5 pivoting respectively about hinges 4 and 8 has the head 10 and jambs 9 of the main frame each provided with a facing or covering profile 11, 12 which is of U-form in section and embraces the front portion of the jamb 9 or head 10 being formed at the inner side with a portion 13 or 12b preferably of U- or V-shape in section, so that it covers only the front portion of the jamb or head and is spaced outwardly from the frame to cover the front portion of the sash 5 forming an air pocket 15 or 17 in front of the space 16 between the sash 5 and main frame. A covering profile 26 for the sill 23 has likewise a projection 25. In this case the lower rail 5 of the outer sash has a covering profile 24. All the covering profiles 11, 12, 24, 26 are spaced from the items they cover. A ventilating duct 18 (see Heading F4V) is provided in the header.
Patent GB-1323683-A (GB)
Title: Method and an apparatus for the manufacture of three-dimensional  reproductions of an object
IPC: B44B1/02
Filed: 1969-06-20
Abstract: 1323683 Working store J S CRUICKSHANK 17 July 1970 [20 June 1969] 31386/69 Heading B5E [Also in Division B3] A method of making a three-dimensional reproduction of an object from a series of photographic records of the object taken at regular angular and/or longitudinal intervals comprises scanning of the outlines of the object from the series of records and transmitting the scanning movement on to a movement of rotary cutting tool which cuts corresponding outlines into a block of material displaced in a way corresponding to that in which the object was displaced for taking the series of photographic records. As described, the object photographed may be an article, person or a part thereof and the apparatus for carrying out the method has a projector 21 having a screen 22 on to which a profile of one of the series of photographs is projected. A tracer 12A is movable over the profile and is carried by a swivel plate 12 which is mounted on a block and connected by parallel rods 10 to a second swivel plate 9 mounted on a second block 14 and carrying a rotating tool 15 for operating on a block 18 of plaster or other material, such as metal, the blocks 14 being interconnected by a base plate 11. The block 18 is mounted in a carrier mechanism for clamping and turning the block on a worktable 19. The blocks 14 are slidable along horizontal guide rods 13 carried by blocks 3 vertically slidable on columns 2, weights 24 counterbalancing the weight of the blocks, &c. In an alternative arrangement, the plates 9, 12 are vertically slidable on the blocks 14. The block 18 of material may be displaced automatically as the profiles projected on the screen are changed.
Patent GB-1324401-A (GB)
Title: Vehicle safety device
IPC: B60R21/26
Filed: 1970-12-29
Abstract: 1324401 Crash restraint devices WALTER KIDDE CO Ltd 29 Dec 1970 [27 Jan 1970] 3971/70 Heading B7B [Also in Division F1] A vehicle crash restraint bag 1 is inflated by a mixture of pressurized gas and atmospheric air during rapid decleration. A gas inlet nozzle 14 is fitted with a two way valve and a nozzle 15 connected to the pressurized gas source and has openings through which air may be drawn during inflation. The two way valve allows deflation of the bag when the occupant of the vehicle presses against it thereby preventing rebound. Several bags (Fig. 5, not shown) may be inflated from the same source and may be suited in the facia or in the central steering column bass (Fig. 4, not shown). The gas source (Figs. 6 and 7, not shown) may comprise a liquified gas cylinder the seal of which is punctured by an explosively fired projectile actuated by an inertia switch.
Patent GB-1326535-A (GB)
Title: Fuse element
IPC: H01H85/10
Filed: 1969-09-23
Abstract: 1326535 Fusible cut-outs ENGLISH ELECTRIC CO Ltd 18 Sept 1970 [23 Sept 1969] 46794/69 Heading H2G An h.r.c. fuse element comprises a fusible strip having spaced apart along its length a series of reduced cross-section portions 1, 2, the lengths of these portions falling into at least two categories. The shorter length portions 2 are arranged to control the short circuit characteristics of the fuse and the longer portions 1 are arranged to provide predetermined overcurrent characteristics. The reduced cross-sections may be formed by making transverse grooves, apertures or notches in a strip of silver 0À0025 inches thick and 0À1 inches wide. A fuse may comprise a number of such elements in parallel. The overourrent notches may be between 4 and 12 times longer than the short-circuit notches.
Patent GB-1329414-A (GB)
Title: Producing shaped plastic articles
IPC: A47C5/06
Filed: 1970-01-05
Abstract: 1329414 Chairs BENDIT (PLASTICS) Ltd 4 Jan 1971 [5 Jan 1970] 514/70 Headings A4H A4J An article of furniture (a chair as described) comprises a frame 10, a shell 20 formed of a flat thermoplastic sheet blank shaped to bend into a desired three-dimensional form and having portions arranged to come into register in the final form, and means connecting the shell to the frame and at the same time securing the registration portions in position to maintain the shell in the desired form. In the embodiment shown, the blank is shaped as shown in Fig.4, the cut-outs 23, 24 providing a preferred direction of bending and providing parts 26, 27 which overlap in the final position and are secured by connectors 40 passed through holes 29-31. The connectors 40 also pass through a back member 16 of the frame, which is formed of metal tubular members 15, 16 detachably engaging diametral bores in heads 11, 12 of rear legs 13. The shell may have arm portions formed integral with it, or separate arms formed of similar material may be provided; such arms may be fixed to the chair by the connectors 40. The material used for the shell may be bendable at room temperature, in which case it can be flattened for storage when removed from the frame, or it may require to be softened before bending. Upholstery, preferably in the form of detachable pads, may be provided. A plurality of chair shells may be attached to a single elongated frame.
Patent GB-1329799-A (GB)
Title: Endless conveyors
IPC: B65G17/00
Filed: 1972-06-28
Abstract: 1329799 Endless conveyers K J MASKINFABRIKEN AS 28 June 1972 30366/72 Heading B8A Trays 1 are pivoted from a horizontal to an inclined position to discharge the contents to a shoot 22 by gripping arms 18 which engage cams 7 on ether side of the tray, the arms then being pivoted by a pneumatic ram 21. The trays are pivotally mounted on an endless chain 5 at points 4 at the front of each tray, and wheels 6 at the rear of each tray run on guide rails 9a, 9, 9b, 11, 13, 14, 17, 16 so that the trays are always horizontal. The trays are used to transport the intestines of slaughtered animals.
Patent GB-1342600-A (GB)
Title: Panels
IPC: A47B13/08
Filed: 1971-04-19
Abstract: 1342600 Laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [19 March 1970] 13355/70 Heading B5N A laminate is prepared by covering a panel, which may be of wood, hardboard, fibreboard, fibreglass or plastics, with a decorative thermoplastic sheet material at least 0À06 inch thick and having at least one layer which is cellular so that marginal portions of the sheet overlie the edges of the panel, reducing the thickness of at least some of the marginal portions of the sheet and attaching the marginal portions to the reverse side of the panel, usually by stapling or adhesive. The panel may be non-planar, in which case it is covered by a vacuum thermo-forming technique using an adhesive on the sheet or front face of the panel. The sheet may comprise polymers or copolymers of vinyl chloride, vinyl acetate or vinylidene chloride, polymers or interpolymers of acrylonitrile, butadiene or styrene, mixtures thereof, or polyurethanes. The thickness of the marginal portions is reduced by skiving, solvent treatment, an ultra-sonic technique or by heat and pressure to cause partial collapse of the cellular layer. The outer face of the sheet may be embossed or may be patterned by collapsing the cellular layer over selected areas by means of a radio frequency heating technique The cellular layer may be sandwiched between two solid layers, the second of which may be of the same plastics material as the cellular layer.
Patent GB-1349646-A (GB)
Title: Folding apparatus
IPC: B65H45/16
Filed: 1970-06-19
Abstract: 1349646 Folding thin material TIMSONS Ltd 15 June 1971 [19 June 1970] 29808/70 Heading B8R A folding apparatus of the kind comprising a pair of jaws adapted to be opened and closed on to a sheet or sheets of paper or like flexible material to form a fold therein has at least one of the jaws either made of, or including a layer of resiliently deformable material, e.g. rubber, rubber and cork, neoprene rubber or plastics material, such that variations in thickness of the paper or flexible material can be accommodated by deformation of the material. The jaw may contain a layer of rubber between two layers of steel. A resilient jaw 4 fixed to a substantially cylindrical component 3 is housed in a longitudinal bore 2 of a rotatable cylinder 1 of a printing machine, and moved to and from a fixed jaw 5 by oscillation of the component 3, this oscillation being effected via an eccentric and crank or a fixed cam track (8), Fig. 1 (not shown), and follower (7). A blade (11) may urge paper 10 into the open jaws, the rubber of the resilient jaw increasing the frictional grip of the jaws on the paper.
Patent GB-1354461-A (GB)
Title: Polymer composition
IPC: C08F279/02
Filed: 1970-07-27
Abstract: 1354461 Moulding compositions BP CHEMICALSLtd 12 July 1971 [27 July 1970] 36294/70 Headings C3E and C3P Thermosetting moulding compositions comprise (a) a high vinyl butadiene polymer (i.e. above 25% 1,2-bonded units), and (b) a free radical initiator comprising a bis-(alkylperoxy)- mononuclear aromatic compound. The compositions may also contain fillers, reinforcing materials, coupling agents, shrinkage controllers and copolymerizable monomers. Exemplified compositions comprise high vinyl polybutadiene, 1,3 - bis - (tertbutylperoxyisopropyl)benzene, CaCO 3  filler, chopped glass fibres and in numbered examples also (1) vinyl-tris-(beta-methoxyethoxy)silane, PVC and acrylamide, (2) vinyl - tris - (beta - methoxyethoxy)silane, diethyl fumarate and methacrylamide, (3) diethylfumarate, acrylamide and N,N<SP>1</SP>-methylenebisacrylamide, and (4) no other ingredients.
Patent IL-102177-A (IL)
Title: Safe containerization systems for aqueous compositions
IPC: B65D81/32
Filed: 1992-06-11
Abstract: A containerization system comprising a water soluble or water dispersible bag containing a composition which is a liquid or a gel comprising: a hazardous product, from 5 to 90% of water and an effective amount of electrolytes sufficient to provide or to improve the insolubility in the composition of the film constituting the wall of the water soluble bag, and wherein the electrolyte is homogeneously present throughout the entire composition.