baber/WOPTO huggingface dataset:
Patent GB-1227303-A (GB)
IPC: B29C65/00
Filed: 1969-11-12
Abstract: 1,227,303. Seaming non-metallic sheet material. SWISS ALUMINIUM Ltd. 12 Nov., 1969 [12 Nov., 1968], No. 55420/69. Heading B5K. Laminates 1, 2 of a thermoplastic resin 4, e.g. polyethylene or polypropylene, with a metal sheet 3 e.g. aluminium, on one or both sides are butt-welded by cutting back the sheets 3 from the edge(s) to be joined, heating projecting layers of the resin 4 to a welding temperature, and pressing together the heated faces until the edges of the sheets 3 meet with shearing of the displaced resin. In one embodiment, Fig. 1, the edges of the sheets 3 are cut back for about 2 mm., e.g. by milling or making cuts at the desired position and pulling off the cut strip. Projecting parts 5 of the resin layers 4 are pressed lightly against a blade 6, heated to a temperature of 180-230‹ C., for 10-80 seconds. The blade is removed and the laminates are pressed together under a pressure of 0À8-1À5 kg./cm.<SP>2</SP> In a modification, Fig. 4, to avoid buckling of the edges of the sheets 3, the edges of the laminates are clamped between members 8 having wedgeshaped edges which allow the displaced resin 7 to move outwards. The lower members 8 may be parts of a work-table. In a further modification (not shown), the blade 6 is omitted and the parts 5 are heated by a hot gas.
Patent GB-1227647-A (GB)
IPC: H01C10/24
Filed: 1969-06-30
Abstract: 1,227,647. Potentiometers. DUNCAN ELECTRONICS Inc. 30 June, 1969 [17 April, 1969], No. 32860/69. Heading H1S. A device for providing a predetermined torque requirement for rotation comprises a metal ribbon 42, compressed into an annular space between the spindle 28 and a sleeve 40 projecting from the front cover 14 of the casing 10. The metal ribbon, 42 has corrugations in the direction of the axis of rotation. The potentiometer is of the helical type comprising a plastics rotor 27 carrying an axially slidable member 30 having grooved edges 30a, 30b, see also Fig. 3 (not shown), embracing a helical rib projecting inwardly from the inner surface of the casing 10, between the turns of which is located the resistance element, 20. A wiper (38), Fig. 3 (not shown), has one end (38b) in contact with the resistance element, and one end (38a) in contact with a conductor bar (36), Fig. 3, extending lengthwise of the rotor 27, and engaging a collector ring 24a connected to terminal (24), Fig. 1 (not shown), at the end of the casing.
Patent GB-1228918-A (GB)
IPC: B21F27/10
Filed: 1968-05-15
Abstract: 1,228,918. Welding by pressure; shearing. EVG ENTWICKLUNGS-U. VERWERTUNGS-G.m.b.H. 15 May, 1968 [16 June, 1967], No. 23073/68. Headings B3R and B3W. A mesh welding machine in which longitudinal wires L advanced longitudinally through the machine are welded at their crossing points with transverse wires inserted by a device forming part of the machine and comprising two parallel transverse wire guides 7a, 7b one of which extends above the path of advance of the wires L and the other below that path, includes a single insertion mechanism for feeding transverse wires into both the transverse wire guides, the delivery line of the insertion mechanism being aligned successively with the respective transverse wire guides above and below the path of advance of the longitudinal wires by means of a switching wire guide 12. The wire guide 12 alternates between its two positions by means of a cam-driven linkage driven through a variable-speed gear 21 on a shaft 22 which also mounts a cam-driven linkage (Fig. 6) for operating a shear 23 to cut the transverse wire to length each time the guide 12 alters its position. A funnel 31, which cooperates with the shear, serves to feed the wires from the guide tube to the transverse wire guides. The wire guides 7a, 7b comprise individual aligned and spaced channels each having an open side covered by a pivotable plate which is driven by a cam-drive and linkage (Fig. 4, not shown) to allow the transverse wires to be conveyed longitudinally of the machine. In a modification (Fig. 5, not shown) the channels comprise two half-tubes spring urged together and provided internally with a lip. Specification 1,171,835 is referred to.
Patent GB-1230808-A (GB)
IPC: F16D41/067
Filed: 1968-09-19
Abstract: 1,230,808. Positive Clutches. W. SCHAEFFLER and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER OHG]. 19 Sept., 1968 [27 Sept., 1967], No. 44681/68. Heading F2C. The rollers 6, Fig. 1, of a jamming roller freewheel clutch are retained by rings 5 of plastics material and urged circumferentially by springs 9 which are embedded in the rings 5. In Fig. 2 plain ended rollers 6 are retained by projections 10 on the rings 5. The springs 9 may be elongated so that their ends overlap, Fig. 5 (not shown). Fig. 4 shows an embodiment in which the springs 9 retain the rollers and the projections 10 are not provided. In Fig. 6 wire springs 14 are moulded into the rings 5. Fig. 8 shows a clutch with one ring 5 into which springs 24 are moulded, the other end of the rollers being supported by a flange 18. In Fig. 10 the rollers are retained by rings 5 and urged circumferentially by springs 25 acting between abutments 26 and the reduced ends 7 of the rollers.
Patent GB-1232534-A (GB)
IPC: D01F4/00
Filed: 1969-06-25
Abstract: 1,232,534. Obtaining fibres from raw materials. STATNI VYZKUMNY USTAV KOZEDELNY. 25 June, 1969 [27 June, 1968], No. 32023/69. Heading D1F. In a method of obtaining fibres from material consisting of soaked, delimed and bated tannery split-leather and machine glue stock (the waste material after machine treatment of heavier weight class hides) the material is treated with a pickling solution comprising water, 3-6% sodium chloride, 0.8-3% of an organic or inorganic acid, e.g. formic or sulphuric acid, in which the material deswells, e.g. to 70% of the original weight, until the pH value of the solution reaches 2.6-3.6. The material is then mechanically disintegrated in excess water during which swelling occurs up to 400% of the original weight of material and the resultant swollen collagen mass is dewatered by repeated washing with a salt (sulphates and/or chlorides) solution.
Patent GB-1234174-A (GB)
IPC: B65H20/28
Filed: 1969-01-17
Abstract: 1,234,174. Tape storage bins. R.C.A. CORPORATION. 17 Jan., 1969 [23 Jan., 1968], No. 2765/69. Heading G5R. A storage bin for endless magnetic tape is generally L-shape so that the emerging tape is substantially free of pressure from the folds above it. As shown, the tape enters an aluminium or stainless steel perforated container at 36 and leaves via an opening 34 at the lower end to pass around a peg 40 to transducer 14 which may be the master unit of a duplicating machine. The width of the container is adjustable via wall 32 and the end 26 is detachable to allow loading &c. of the tape. During loading, the container is closed at the base of the vertical section 28 by a rake inserted through the perforations, it being removed when the section 28 is full. The emergent end is spliced to the other tape end.
Patent GB-1234261-A (GB)
IPC: B65B7/28
Filed: 1968-02-12
Abstract: 1,234,261. Lidding apparatus. AUTOPACK Ltd. 11 Feb., 1969 [12 Feb., 1968], No. 6853/68. Heading B8C. Apparatus to secure lids to cartons comprises a die plate 16, Fig. 1, having an aperture or recess to locate the carton, a plurality of edge folding members 28 mounted horizontally on pivoted supports 29, and means e.g. 31-34 to pivot the supports simultaneously to move members 28 from an outer position where their inner edges are outward of the periphery of the aperture to an inner position so that they engage a vertically extending edge 13 of the carton (or lid) to fold it around the lid (carton), each folding member being angled and having an extension sliding over an adjacent folding member. As shown a carton 10 having a horizontal flange 11 with a vertical edge 13 is located on die plate 16 and ejector plate 19 and pressed manually against the counterweight 26 connected by rod 20, foot 22 and peg 27. Pedal 31 is depressed, lowering column 32 and sleeve 34 against spring 36, simultaneously pivoting supports 29 and members 28 through arms 33, thereby folding carton edges 13 over the lid 12. After releasing pedal 31, the carton is ejected by counterweight 26. For a square carton, the members 28 are L-shaped (Fig. 2, not shown), each having an extension (30) to one leg thereof, sliding over the adjacent member as the move to their inner position. In an alternative arrangement, the lid 12 may be larger than the carton ledge 11 which may be pushed up through a suitable aperture, to fold the lid edge downwardly and further folding of the lid 12 around the carton effected by members 28.
Patent GB-1250290-A (GB)
IPC: H01F38/42
Filed: 1970-02-26
Abstract: 1,250,290. Transformers. INTERNATIONAL STANDARD ELECTRIC CORP. 26 Feb., 1970 [28 Feb., 1969], No. 9267/70. Heading H1T. An arrangement for tuning a high-voltage transformer comprises a core which is closed with the exception of a gap, and has its limbs embraced respectively by primary and secondary windings 3, 4, and a ferrite pin 6 perpendicularly mounted in relation to the axis of one limb and movable in a spacer 5 of non-magnetic material filling the core gap. The ferromagnetic core consists of a U-shaped core part 1 of equal limb length and an I-shaped core part 2, the non-magnetic spacer of plastics material 5 is arranged between the limb of the U-shaped core carrying the primary winding 3 and the I- shaped core, and a ferrite spacing disc 7 having the same thickness as the non-magnetic spacer is arranged between the limb of the U-shaped core carrying the high-voltage winding 4 and the I-shaped core. The ferrite pin and bore, receiving the pin in the spacer, are threaded. The non-magnetic spacer may have a thickness of five millimeters. A compensation winding is arranged under winding 4.
Patent GB-1250886-A (GB)
IPC: B60K11/08
Filed: 1967-12-05
Abstract: 1,250,886. Grilles. BRITISH ALUMINIUM CO. Ltd. 10 Dec., 1968 [5 Dec., 1967], No. 55302/67. Heading D1K. An extruded metal grille has a wall part 12 from one side of which protrude a number of parallel limbs 13. The wall part 12 is perforated at spaced intervals to enable flaps 16 to be pressed from the wall part 12 to form an opening 18 and to extend between the limbs thus forming an open cell like structure. Part 17 of the flap 16 may be cut away. A single flap 16 may extend from one edge only of the opening 18 or alternatively two flaps may be provided each of which extend from opposite edges of the opening. The wall part may be straight or curved. Two wall parts may be provided integrally connected but arranged at an angle to each other so as to define a side angled "V" in cross section, Figs. 4, 5 and 6 (not shown).
Patent GB-1256575-A (GB)
IPC: C10L5/04
Filed: 1969-08-28
Abstract: 1,256,575. Treatment of coal for compression moulding. BERGWERKSVERBAND GmbH. 28 Aug., 1969 [5 Sept., 1968], No. 42938/69. Heading B5A. [Also in Division C5] In a process for making shaped articles from hard coals by pressing at elevated temperature, substances which cause softening of the waxresin complex of the coals and/or cause binding between the molecules of the coals are added in amounts ranging from 3 to 15% by weight of the coal. Substances mentioned include polyfunctional alcohols and aldehydes, polyvalent aromatic oxy-compounds and quinones, aromatic and aliphatic amines, polyamides and polyenes, and dienes. Pressing temperatures ranging from 200‹ to 360‹ C. are mentioned.
Patent GB-1257521-A (GB)
IPC: C01F7/66
Filed: 1969-01-10
Abstract: 1,257,521. Aqueous Al(NO 3 ) 3 . ALLIED CHEMICAL CORP. 10 Jan., 1969 [6 Feb., 1968], No. 1676/69. Heading C1A. Aluminium nitrate solutions of reduced iron content are produced from iron-containing clays by (a) digesting a clay at 140-220‹ C. under autogenous pressure, with nitric acid having a concentration of at least 10% by wt. in an amount at most 90% of that stoichiometrically required to convert all the aluminium in the clay to aluminium nitrate, the clay containing at least about 5% Fe by wt. (as Fe 2 O 3  per 100 parts Al 2 O 3  in the clay) to give a 10- 60% Al(NO 3 ) 3  solution and (b) cooling said solution, under autogenous pressure, at an average rate not greater than 25‹ C. per min. to the boiling point of the cooled solution under atmospheric pressure, the said period being not more than about 5 hours. The solution so treated may be filtered to remove Fe 2 O 3  and leave a solution having an Al 2 O 3 /Fe 2 O 3  ratio greater than 2000/1. Cooling may be carried out either externally or internally by the addition of water or an aqueous solution, the amount of water added being at most that required to reduce the concentration of aluminium nitrate in the cooled solution to about 25% by weight. Alumina may be obtained from the aluminium nitrate solution, e.g. by crystallization of aluminium nitrate nonahydrate followed by thermal decomposition. Reference has been directed by the Comptroller to Specification 1,107,232.
Patent GB-1258137-A (GB)
IPC: E05D3/06
Filed: 1969-02-20
Abstract: 1,258,137. Invisible twin-link hinge. K. LAUTENSCHLAGER Jnr. 20 Feb., 1969 [18 March, 1968], No. 9261/69. Heading E2F. A hinge for attaching a door 1 to a cupboard wall 2 comprises a member 3 hinged to a channel-shaped member 4 by two links 6 and 7. The base 15 of the member 4 is secured to a mounting plate 5. An adjusting screw 17 in screw-threaded engagement with member 4 abuts a mounting screw 9 or the mounting plate 5 and so enables adjustment of the position of the member 4, and thus the pivots 11 and 10, relative to the mounting plate 5 in a direction perpendicular to the plane of the plate 5. Longitudinal adjustment of the member 4 with respect to the mounting plate 5 is possible by removing screw 19. The member 3 may be made of plastics. A plastics strip 8 may be clamped between the plate 5 and the wall 2.
Patent GB-1264484-A (GB)
IPC: B65D81/38
Filed: 1969-02-17
Abstract: 1,264,484. Packaging fish; trays. GENERAL PLASTICS CO. Ltd. 17 Feb., 1969 [18 April, 1968], No. 8475/69. Headings B8C and B8P. A package for keeping fish cool comprises at least one thermoplastic rectangular inner tray e.g. of polystyrene or a polyolefin or a copolymer thereof or polyethylene having a peripheral flange to which is heat sealed a tearable plastics membrane, the tray or trays being surrounded by ice and enclosed within an outer box e.g. of expanded polystyrene, or fluted Kraftboard lined on one or both sides with polyethylene. A cardboard box may enclose the outer box. The inner trays may be enclosed within a polyethylene bag containing ice and located within the outer box. Two inner trays may be located in face to face contact, Fig. 4, and connected either by heat sealing the respective membranes around or outside the flange area. Alternatively the trays may be connected by banding with weftless tape. The flanges may have contact assisting projections to prevent too tight a fit when nesting empty trays. The fish may be prechilled in cold brine.
Patent GB-1265621-A (GB)
IPC: C22B19/02
Filed: 1970-02-17
Abstract: 1,265,621. Sintering sulphide ores. BROKEN HILL ASSOCIATED SMELTERS PTY. Ltd. 17 Feb., 1970 [18 Feb., 1969], No. 7556/70. Heading C1A. A process for sintering sulphide ores, e.g. lead, zinc, comprises progressively igniting a substantially horizontal moving bed of charge material at the bottom thereof, passing air upwards through the bed in a first zone, discontinuing, or reducing the updraught in a second zone, and then further passing air through the bed in a third zone. In a modification of this process, gases may be drawn downwards through the bed whilst it traverses the second zone, and recycled to the first zone. The gas withdrawn from above the first zone, being relatively rich in SO 2 , may be passed to a sulphuric acid plant. The sintered material after leaving the third zone, optionally after passing through a further zone where there is no airdraught through the bed, may be fed to a breaker where it is crushed and screened, the oversize being used as feed to a blast furnace, and the undersize may be returned to the sinterbed feedstock. Other low-grade materials, e.g. plant residues, may be incorporated in the sinterbed feedstock.
Patent GB-1265776-A (GB)
Inventor: DEGEN H
IPC: A47C23/06
Filed: 1970-12-14
Abstract: 1,265,776. Mattresses. MARPAL A.G. Dec.14, 1970 [Dec.16, 1969], No.59242/70. Heading A4M. A mattress 3 includes, at least in its central zone, resilient, side by side elements 6 each enclosed in a covering layer 8 and an airpermeable cover envelope 10 which together with rounded corners of the elements 6 defines transverse ducts 11, the elements 6 extending for at least one half the mattress width. The elements 6 may be separately formed elements or, as shown, may be integral with a border and formed by making parallel cuts in a foamed plastics core. Alternatively, the elements may be of rubber or horsehair.
Patent GB-1266019-A (GB)
IPC: H02K7/12
Filed: 1969-06-20
Abstract: 1,266,019. Clutch-brake combinations; friction clutches. QUICK-ROTAN BECKER & NOTZ K.G. 20 June, 1969 [19 July, 1968], No. 31367/69. Headings F2C and F2L. A combined electric motor and double clutch or as shown clutch-brake unit for a sewing machine comprises clutch and brake discs 19, 22 carried by hubs 18, 21 splined to a driven shaft 12 and carrying friction facings 20, 23 engageable with a driving flywheel 4 and fixed disc 27 by selective energization of stationary electromagnets 34, 35 located between the clutch and brake discs. The clutch disc 19 and brake disc 22 are made of aluminium whilst their hubs 18, 21 are made of magnetic material to produce flux paths 42, 42<SP>1</SP> on energization of the electromagnets 34, 35. Cooling fins 39, 41 are provided on the housing of the clutch-brake unit and fins 7 on the flywheel draw cooling air. through ducts 29, 25, 24, 8 in the fixed disc 27, clutch and brake hubs 18, 21 and flywheel 4. Adjusting shims may be provided between the clutch and brake disc and their respective hubs to take up wear. For a double clutch arrangement the disc 27 is driven from the flywheel 4 at a speed or in a direction different from that of the flywheel.
Patent GB-1290262-A (GB)
IPC: B23G1/16
Filed: 1970-02-23
Abstract: 1290262 Tapping machine details ING C OLIVETTI & C SpA 23 Feb 1970 [3 March 1969] 8468/70 Heading B3N [Also in Division F2] A tapping spindle assembly comprises a spindle 4 carrying a tap 5, rotatable in a quill 8, the quill having a screw-thread 36, which cooperates with a lead nut 38, the nut having an integral gear 62 which when rotated by an electric motor, via gears 56, 57, 61 effects the feed of the quill. Quill 8 is guided in a housing 9 by resilient bushes 19, 20, and spindle 4 is rotated by gears 29, 30, and a splined coupling 35. Nut 38 has two sets of re-circulating balls which coact with screw-thread 36, and the nut is formed of two parts 40, 41, spaced by a thin flexible plate 50 which allows relative axial adjustment of the parts, so as to eliminate backlash. The relative axial adjustment is provided by four screws 51, and the parts are locked in the adjusted position by screws 52.
Patent GB-1290985-A (GB)
IPC: D05B29/08
Filed: 1970-09-03
Abstract: 1290985 Presser foot MEFINA SA 3 Sept 1970 [19 Sept 1969] 42143/70 Heading DIG A presser foot comprises a sole 1 pivoted at 2 to a shank 3 and provided with a portion 19 connected to the sole by a parallelogram linkage 16, 20 so as to be displaceable parallel to the sole to ride on raised stitching. A leaf spring or, as shown, a hairpin spring 23 biasses the portion 19 towards its lower position.
Patent GB-1295608-A (GB)
IPC: G01R31/34
Filed: 1971-05-18
Abstract: 1295608 Measuring air-gap in rotary electrical machines BROWN BOVERI & CO Ltd 18 May 1971 [20 May 1970] 15651/71 Heading G1N The air-gap between the rotor and stator of a rotary electrical machine is monitored by magnetically sensitive resistors or diodes mounted in the stator and connected in a bridge circuit. As shown, eight sensors each including a magnetically sensitive resistor (12) and a temperature compensating resistor (13) are arranged on the stator as shown. Four diametrically opposite magnetosensitive resistors 12 4 -12 7  and their adjacent compensating resistors 13 4 -13 7  are connected in a D. C. energized bridge. Peak voltage detector 24 is connected to an air-gap meter 25 and to an alarm 26.
Patent GB-1296421-A (GB)
IPC: B23K9/23
Filed: 1970-03-06
Abstract: 1296421 Welding by pressure; welding by fusion MITSUBISHI JUKOGYO KK 6 March 1970 [7 March 1969 10 March 1969] 10981/70 Heading B3R [Also in Division E1] A Ta or Ta alloy clad steel comprises a carbon steel base 21, an intermediate layer 22 of Ti, Zr, Mo, Nb or an alloy thereof, which does not become brittle upon being fused together with Ta, and a Ta or Ta alloy top layer 23, the layer 22 being bonded on to part or the entire surface of the base 21, and the layer 23 being bonded on to part or the entire surface of the layer 22. As described in an example, the bonding is by explosive cladding. The layer 22 prevents iron migration from the carbon steel into a weld, and consequent weld embrittlement and corrosion resistance reduction, when welding to or together sheets of the clad steel. Examples of such welding comprise (a) the butt joint shown wherein (1) the carbon steel bases 21 are welded together at 24 using a suitable filling welding rod, (ii) a metal filler plate 25 is inserted into a groove formed between the pairs of layers 22, 23 and (iii) a bridge 26 of the same material as the layer 23 is overlapped on, and filler welded at 27 to, the layer 23; (b) a Ta element filler welded to a layer 23 (Fig. 7, not shown); and (c) a Ta tube inserted through the clad steel and filler welded to the layer 23 (Fig. 8, not shown).
Patent GB-1297180-A (GB)
IPC: C02F5/12
Filed: 1970-12-22
Abstract: 1297180 Removing or inhibiting the formation of deposits in aqueous systems HERCULES Inc 22 Dec 1970 [22 Dec 1969 (2)j 60962/70 Heading C7E A process for removing or reducing accumulations of insoluble solids in e.g. aqueous cooling systems, comprises subjecting the systems to the action of a water soluble cationic resin polymer obtained by reacting a polyalkyline polyamine having two primary amine groups and at least one secondary amine group with either diglycollic acid or a C 3 - C 10  saturated aliphatic dicarbescylic acid to form a water soluble aminopolyamide with epichlcrohydrin and an alkylating agent to form an aqueous solution of the polymer. The amount of alkylating used is preferably such that at least 75 per cent of the amino groups initially present in the aminopolyamide are converted to quatemary groups in the polymer. The polymer may be added to the system in amounts ranging from 0À1 to 200 parts per million parts of water and in addition to removing accumulation of deposits of existing solids it also inhibits the precepitation ferric hydroxide. The polymer used in the samples is prepared from diethylenetriamine and adipic acid using a mixture of formic acid and formaldehyde as the alkylating agent.