baber/WOPTO huggingface dataset:
Patent GB-1232978-A (GB)
Title: Electro-magnetic actuators
Inventor: BURDETT EDWARD RAYMOND
IPC: H02K33/18
Filed: 1967-08-18
Abstract: 1,232,978. Electromagnetic switches; electromagnetic actuators. ENGLISH ELECTRIC CO. Ltd. 9 Aug., 1968 [18 Aug., 1967], No. 38290/67. Headings H1N and H1P. An electromagnetic actuator particularly for a vacuum switch has an armature assembly including a flux diverting coil 9 and a magnetic polepiece 14 which in a limit position bridges a gap 6 in a magnetic body 1 polarized by holding flux producing means such as a coil 4 or a permanent magnet. A D.C. pulse in the flux diverting coil 9 in a direction such as to produce flux in opposition to the holding flux in the polepiece 14, moves the armature to its other stable position in which the holding flux passes through a polepiece 15 at the other end of the coil 9. The armature assembly is mounted on a rod 16 connected to switch contacts and slidable in bearings 18, 19 in the central shaft 2 of the body 1 which may be cylindrical with an annular air gap 6. The coil 9 is mounted on a former 11 which may be of the same material as the polepieces 14, 15 or be non-magnetic.
Patent GB-1233332-A (GB)
IPC: C12N9/58
Filed: 1969-08-14
Abstract: 1,233,332. Cheese. MILES LABORATORIES Inc. 14 Aug., 1969 [9 Sept., 1968], No. 40709/69. Heading A2B. [Also in Division C3] Cheese is made by treating pasteurised whole milk with a microbial rennet produced by Mucor miehei (see Division C3). The cutting quality and texture were comparable with those of cheese made from calf rennet and after ripening for 60 days the cheese was normal in body, texture and flavour.
Patent GB-1239104-A (GB)
IPC: C07D235/32
Filed: 1969-10-31
Abstract: 1,239,104. 2-Benzimidazole carbamic acid esters. E. I. DU PONT DE NEMOURS & CO. 31 Oct., 1969, No. 53621/69. Addition to 1,185,237. Heading C2C. 2-Benzimidazole carbamic acid esters of the Formula I: where R is a C 1-4  alkyl group and X is a hydrogen or halogen atom or a nitro or C 1-4  alkyl group, are prepared (1) in a two-step process comprising (a) reacting cyanamide or a salt thereof with an alkyl chloroformate or an alkyl carbonate in a substantially neutral to basic medium at 0-130‹ C., and (b) reacting the alkyl cyanocarbamate salt so produced with an ophenylenediamine X-(C 6 H 3 ) (NH 2 ) 2  in an aqueous acidic medium of pH 1 to 5 at 40‹ to 130‹ C., at least one of steps (a) and (b) being conducted in a reaction medium comprising at least one water-miscible organic solvent or (2) in a single-step process in which an o-phenylenediamine of the above formula is reacted with an alkyl cyanocarbamate or a salt thereof at 40‹ to 130‹ C. in a medium of pH 1 to 5 comprising at least one water-miscible organic solvent. The first step of process (1) may be conducted in the presence of an organic or inorganic base. In a modification of the above process, both steps (a) and (b) may be conducted in wholly aqueous media and when step (a) is conducted in the presence of an organic base.
Patent GB-1239570-A (GB)
IPC: B65H1/26
Filed: 1969-06-13
Abstract: 1,239,570. Feeding sheets. HEIDELBERGER DRUCKMASCHINEN A.G. 13 June, 1969 [29 June, 1968], No. 30154/69. Heading B8R. While sheets are separated from a stack 8 carried on a pile table 3<SP>1</SP> a new stack 1 is prepared on a pile table 3 such that when stack 8 is exhausted table 3<SP>1</SP> may be removed by a device 12 permitting table 3 to be moved into the separation position along guide rails 5. Pile table 3<SP>1</SP> is raised by hoist 17 as stack 8 is depleted. Upon exhaustion of stack 8 table 3<SP>1</SP> may be moved along guide rails 5<SP>1</SP> into a position where it is situated between the jaws of device 12, which device may then be pivoted on bracket 11 to lift the empty table from the rails. The replacement table 3 may then be moved along rails 5 and then 5<SP>1</SP> into the separation position while the original table is lowered on to guides 5 and moved therealong for re-filling.
Patent GB-1251175-A (GB)
IPC: B21C37/08
Filed: 1970-05-22
Abstract: 1,251,175. Making tubes; skelping by rolls. HUTTE KREMS G.m.b.H., and VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. 22 May, 1970 [10 June, 1969], No. 24948/70. Headings B3A and B3E. A tube having a cornered cross-section is made from a strip 1 by forming it into a shape similar to the final cross-section with the edges 1a near a corner of the cross-section and the edge portions 1b shaped to conform to a cylindrical surface by rolls 2 and 3, the edges are then brought together and welded, Fig. 3 (not shown), and the tube given a final shaping to produce the cornered cross-section with the seam in one corner thereof, Fig. 5 (not shown).
Patent GB-1253132-A (GB)
IPC: C03C3/062
Filed: 1969-03-18
Abstract: 1,253,132. Coating with glass. WESTING- HOUSE ELECTRIC CORP. 18 March, 1969 [10 April, 1968], No. 14093/69. Heading C1M. An electrical steel sheet of iron-silicon alloy of grain texture (100) [001] is coated with a magnesium-base compound, annealed at an elevated temperature so as to react the basecompound with the steel sheet, fusing at 700- 850‹ C. a glass having a thermal expansion coefficient less than 8 Î 10<SP>-6</SP>/‹C. on the coated sheet to form a glass coating, and cooling the glass-coated steel sheet so that the steel sheet is maintained in tension by the glass coating, the steel being subjected to a tension of at least 50 p.s.i. while the temperature is above the softening point of the glass. The stress applied may be up to 2000 p.s.i. The glass coating is preferably of thickness 1 x 10<SP>-4</SP> to 3 x 10<SP>-4</SP> inch, and preferably has a softening point below 950‹ C. The glass may be applied simply as a frit. Two types of glasses which may be used have the compositions, in weight percent :- The invention is a development of the method claimed in Specification 1,130,286.
Patent GB-1258467-A (GB)
IPC: A47B7/02
Filed: 1969-08-20
Abstract: 1,258,467. Hinge for folding tables. HOWE FOLDING FURNITURE Inc. 20 Aug., 1969 [20 Aug., 1968], No. 41617/69. Heading E2F. [Also in Division A4] A folding leg 20 is floatingly mounted under a table top 10 by a pin 26 on a bracket 28 fixed to the top 10 received in a slot 30 in a plate 24 attached to leg 20. A dead-centre tension spring 46 is connected between a lug 48 on plate 24 and the short arm of a J-pin 40, the long arm of which is rotatable in bracket 28. A bar 38 is welded at its ends to the pins 40 of respective legs 20 of a pair. When the pair of legs are unfolded, plates 24 rotate so that hooks 36 thereon engage around bar 38 to lock the legs unfolded. Further locking is obtained by pivoting bar 38 and pins 40 about the pins mountings by a manual lever 39 attached to bar 38 so as to move bar 38 further inwardly along hook surface 36a.
Patent GB-1266909-A (GB)
IPC: B65D1/26
Filed: 1969-04-01
Abstract: 1,266,909. Drinking vessels. IMPROMEX A.G. April 1, 1969 [April 2, 1968], No. 16993/69. Heading A4A. A plastics cup having a plurality of projections 3 protruding from its side walls 1 into the cup cavity near its bottom 2, has a raised bottom portion 5 protruding amidst the projections 3 into the cup cavity, the side walls 6 of the raised portion facing the projections consisting of a plurality of concave faces 6a, 6c, 6e (or 6g) Fig. 3 (not shown) or of straight sides Fig. 4 (not shown) defining, opposite the projections 3, angles of less than 180 degrees. Mixing of undissolved or undisposed powders in a beverage injected into the cup is said to be enhanced.
Patent GB-1289879-A (GB)
IPC: B41L19/00
Filed: 1970-11-19
Abstract: 1289879 Printing apparatus G RITZERFELD 19 Nov 1970 [13 Jan 1970] 55046/70 Heading B6C Heat-absorbent characters of a reverse image master 4, mounted on a master cylinder 1, receive a coating of heat-fusible ink from a forme roller 9, which itself receives molten ink from a heated duct roller, and the forme roller is cooled to bring the ink below its solidification point. The characters are heated by an infra-red radiator 17, which may be located within the forme roller 9 if that is transparent to infra-red radiation, and ink transfers from the forme roller 9 to the characters. Excess ink is removed from the forme roller 9 by a heater 10 and heated scraper blade 11. Preferably the forme roller 9 is of glass, as is impression cylinder 24, which has a further infra-red heater 25 inside it to assist transfer of ink from the master 4 to copy sheets 18. The master cylinder 1 is rubbersurfaced, and is advantageously non-heatabsorbent. Alternatively the characters on the master 4 may be heated by infra-red radiators before they contact the forme roller 9. Printing may take place at each revolution of the master cylinder 1, with continuous inking, or the master 4 may be inked fully during a first revolution of the master cylinder 1 and printing take place only during subsequent revolutions. If it is desired to print certain lines only of the master these are inked selectively by bodily movement of the inking apparatus about a pivot 30, by action of a solenoid 34 and a spring 42. The impression cylinder 24 is tripped by a suitable cam when the line in question reaches the nip of the master cylinder 1 and impression cylinder 24. The ink which is printed by the master 4 may be colourless, and react with a further component applied to the sheets 18 to produce visible printing on the sheets 18.
Patent GB-1290164-A (GB)
IPC: G05D23/24
Filed: 1969-11-18
Abstract: 1290164 Automatic temperature control systems EASTMAN KOKAK CO 18 Nov 1969 [18 Nov 1968] 56422/69 Heading G3R A temperature sensing thermistor RT is connected in a bridge network which supplies an error signal to a differential amplifier 7 the output of which supplies a differential temperature indicating milli-ammeter M also a transistor T1 which is either fully on or off dependent on the amplifier output signal. When T1 is "on" a relaxation oscillator including transistor T2 supplies firing pulses to a triac TR which energizes a heater H. High frequency interference suppressing components L1, C4 may be included in the circuit. A feedback resistor R5 reduces the amplifier 7 gain and also makes the characteristic more linear. Frequency compensating components comprise resistor R6 and capacitors C1, C2. In an alternative arrangement Fig. 2 (not shown) a transformer (Ql) couples the transistor T2 to the gate of triac TR. The heater may be replaced by a refrigerant or other temperature control device if the circuit is rearranged to act in an opposite phase.
Patent GB-1297145-A (GB)
IPC: H01B7/36
Filed: 1969-11-24
Abstract: 1297145 Recovering copper from scrap M W CORP 24 Nov 1969 57440/69 Heading C7D Copper is recovered from insulated copper wire by treating in an autoclave the wire in lengths the great majority of which are not more than ¢ inch and having no more than 15% by weight of insulation, no more than 2% by weight of polyethylene and at least 5% by weight of polyvinyl chloride based on the total weight of insulated wire. Petroleum distillate oil, having at least 10% of its carbon in aromatic rings and not more than 50% of its carbon in paraffin chains, is circulated through the autoclave at a temperature of at least 450‹F. for at least 1 hour. The oil is then cooled in the autoclave to below its flash point and the copper is separated from the embrittled material mixed therewith, e.g. using a hammermill, magnetic separation, washing and drying steps. The wire may be provided in the required lengths by chopping, small fragments of insulation being separated by air blowing. Where the polyvinylchloride content of the insulation is insufficient, this compound may be added to the autoclave to make up the required minimum percentage.
Patent GB-1301511-A (GB)
IPC: F21S8/08
Filed: 1970-02-26
Abstract: 1301511 High mast lighting PHOSCO Ltd 19 April 1971 [26 Feb 1970] 9289/70 Heading F4R A plurality of lamp units 3 are pivotally mounted on a rail 4 at the top of a mast 1. The rail may be raised or lowered by cables 6 and the lamp units may be clamped at any point around the rail. The lamp units may be rotatable about the struts 7. The lamp units have one or more movable reflectors inside the unit, e.g. as shown in Specification 625,307 (Division F4). In alternative embodiments the lamp units may be adjusted by remote-control gear, two circular rails may be used or a rail with spokes which may be secured to the mast. The canopy 2 may be sealed with a transparent cover and the whole arrangement may be tiltable about the top of the mast.
Patent GB-1312578-A (GB)
Title: Track for a track laying vehicle
IPC: B62D55/24
Filed: 1971-10-04
Abstract: 1312578 Endless tracks PAC-TRAC INDUSTRIES Ltd 4 Oct 1971 46168/71 Heading B7H The track elements of an endless track are interconnected by wire ropes 18 having ferrules 19 at each end which engage in recesses 21 in each grouser 11, the ropes being retained by cover-plates 23, and each grouser having upwardly and downwardly curved cams 13, 15 and 12, 14 at each corner. Each cover-plate is provided with sprocket holes 24 registering with those in the grouser at 22, and a hole 25 for the track guide 26. Nylon inserts 29 may be fitted between the ferrules and the grouser to adjust the tension.
Patent GB-1318630-A (GB)
Title: Two-part extruded trim strip
IPC: E04D13/15
Filed: 1970-11-26
Abstract: 1318630 Eaves trim strip ALCAN RESEARCH & DEVELOPMENT Ltd 5 Nov 1971 [26 Nov 1970] 56332/70 Heading E1W An extruded trim strip (e.g. of aluminium) has a first part 6 with a flange 8 attached to a timber member 4 on a roof 3, the flange having an upwardly and rearwardly bent extension 14 defining a recess receiving an edge of a roofing felt 5, and a second part 16 having a front face 17 extending below the flange 8 and securable to the first part by interengaging members 11, 20 and 15, 22 respectively defining a pivot axis and a catch. A mastics seal 7 may be applied. The pivot members 11, 20 may be at the level of the flange 8 and the catch members 15, 22 at the level of the member 18.
Patent GB-1318876-A (GB)
Title: Treating polyolefin surfaces
IPC: B42D15/10
Filed: 1969-08-22
Abstract: 1318876 Coated products WIGGINS TEAPE RESEARCH & DEVELOPMENT Ltd 21 Aug 1970 [22 Aug 1969] 42069/69 Addition to 1136902 Heading B2E [Also in Division G2] A polyolefin surface is coated with an acidic aqueous composition containing 1-80% by weight of an aqueous silica sol, 0.01-40% by weight of a water-insoluble organic polymeric film-forming material, an acid (especially HNO 3 ) to give a pH of 2-7 and sufficient surface-active agent to retain the film-forming material in suspension and the coating is dried at 25C or below. The polyolefin surface may be provided by a polyethylene-coated paper which, after coating as above, may be further coated with a silver halide photographic emulsion. The film-forming material may be an aqueous polyethylene emulsion, a styrenebutadiene latex or a modified polyvinyl alcohol and the surfactant may be iso-octylphenoxypolyethoxyethanol. The composition may be applied by means of a reverse roll and air knife or a doctor rod. A C 1-6  alcohol or ketone may replace part of the water as solvent for the coating composition.
Patent GB-1329087-A (GB)
Title: Hose clamps
IPC: F16L21/06
Filed: 1969-09-05
Abstract: 1329087 Clamps FLEXTUBE Ltd 3 Sept 1970 [5 Sept 1969] 44156/69 Heading E2B [Also in Division F2] A clamp for clamping a hose end (not shown) onto a spigot (not shown) comprises two shells 2 and 4, each formed with two differently shaped concave recesses 12 and 14, in which are located inserts 16, so that the hose wall is prevented from extruding between the two shells when bolts 6 are tightened. Self adhesive tape may be used to retain the inserts within their recesses when assembling the two shells about the hose. Alternatively, an insert is pivotally mounted within one of the two recesses of each shell. The axial dimension of each insert is less than that of the shells, and the inserts do not extend up to either end of the shells. The inner surface of each insert is formed with teeth, Figs. 1 and 4 (not shown), spaced along the length of the insert.
Patent GB-1330124-A (GB)
Title: Polysiloxane alastomer films
IPC: B29C48/08
Filed: 1969-09-15
Abstract: 1330124 Polysiloxane films; laminates NATIONAL RESEARCH DEVELOPMENT CORP 10 Sept 1970 [15 Sept 1969] 45411/69 Headings B5B and B5N [Also in Divisions B2 and D1] In a process for the continuous or semicontinuous production of polysiloxane elastomer films a dope containing a solution of polysiloxane gumstock and a catalyst, suitably 2, 4-dichlorobenzoyl peroxide, in a solvent, preferably a blend of toluene or xylene and an iso-paraffin, and having a solids content of at least 20% by weight is spread from a hopper 7 on to a moving substrate 1 which is passed into a first oven 8 in which the solvent is evaporated and a second oven 9 in which the elastomer is cured. Preferably the gumstock contains from 30% to 50% by weight of a filler, e.g. silica and 1À5% to 6% by weight of catalyst, and the dope contains 20% to 60% by weight solids. A doctor blade 6 co-operating with edge member 5 controls the thickness of the polysiloxane dope layer and a cushion of hot gas is supplied to the ovens 8 and 9 and serves to support the coated substrate as it passes therethrough and to evaporate the solvent from the dope. Preferably the solvent is evaporated at between 70 C. and 80 C. and the curing is effected for between 30 seconds and 30 minutes at 130 C. to 180 C. The substrate may be of glass, cloth, paper, cellulose acetate or thermoplastic material but is preferably a polyester fabric. Self-supporting polysiloxane elastomer films may be obtained by releasing the cured film with a stripper blade 13 as the substrate passes over guide roller 11 or the coated substrate may be wound up intact on roller 12. A laminate of polysiloxane elastomer and reinforcing fabrics may be obtained by lowering a suitable porous reinforcing fabric, e.g. of a polyamide or polyester, on to the elastomer film carried on the polyester substrate fabric so that it floats through the hot air passing through the first oven and is embedded into the upper layers of elastomer prior to curing. Alternatively a freshly elastomer-coated reinforcing fabric may be lowered on to a previously cast polysiloxane elastomer film carried on a polyester support.
Patent GB-1333045-A (GB)
Title: Curing of non-drying alkyd resins and cured non-drying alkyd  resins
IPC: C09D167/08
Filed: 1970-11-25
Abstract: 1333045 Alkyd resins PAINT RESEARCH ASSOCIATION 25 Nov 1970 [25 Nov 1969] 30 July 1970] 57711/69 and 37001/70 Heading C3R [Also in Divisions B2 and G2] Non-drying alkyd resins produced from a polyhydric alcohol, aromatic polybasic acid and mono-unsaturated or saturated fatty acid are cured by exposing them to irradiation, e.g. with electron irradiation or with ultra-violet light which contains radiation of wavelength 250- 320 nm. The resins may be coated on to substrates, e.g. of steel, aluminium, tinplate, wood, glass or plastics material, prior to irradiating. Printing reliefs may be produced by exposing an uncured film of the non-drying alkyd resin on a backing to an ultra-violet image and then removing the non-irradiated and accordingly uncured areas by washing with an aromatic hydrocarbon solvent, e.g. xylol. The non-drying alkyd resin may also contain photosensitizers, e.g. vanadium or uranium salts or soaps, cobalt compounds and eosin, photo-active pigments, e.g. zinc oxide, or an amino-formaldehyde resin together with an acid catalyst, e.g. a butylated urea- or melamine-formaldehyde resin and phosphoric acid or an acid alkyl ester thereof, hydrochloric acid or p-toluene sulphonic acid. In preparing the non-drying alkyd resin there may be used as polyhydric alcohol, glycerol, trimethylol-propane or -ethane or pentaerythritol, as polybasic acid, ortho, iso- or terephthalic acid or trimellitic acid and as fatty acid, pelargonic, lauric, myristic, palmitic, stearic, oleic or ricinoleic acid. In examples non-drying alkyd resins prepared from glycerol, o-phthalic anhydride and coconut oil or castor oil which may be coated on to glass, aluminium, polyester or polyethylene films and may contain uranyl nitrate, vanadium naphthenate or a butylated urea- or melamineformaldehyde resin, containing as catalyst phosphoric acid, acid butyl phosphate, hydrochloric acid or p-toluene sulphonic acid, or be in the form of a paint containing zinc oxide or rutile titanium dioxide are cured by exposure to electron irradiation or ultra-violet light.
Patent GB-1333077-A (GB)
Title: Core-blowing machines
IPC: B22C7/06
Filed: 1970-09-14
Abstract: 1333077 Foundry moulding machines STONE WALLWORK Ltd 2 Sept 1971 [14 Sept 1970] 43851/70 Heading B3F A core-blowing machine comprises a support 16 carrying a core-box half 15, the support being swingable between an upright core-forming position and a horizontal core delivery position (shown in chain-lines) in which the core-box half is open downwardly in combination with a core delivery conveyer 24 which is movable up and down between a conveying position and a core receiving position 24a (shown in chain-lines) below the core discharge position. In operation, sand from a hopper 2 is blown by a shooting head 5 into a closed core box 10, 15 and there set by gas or heat. A core-box half 10 is retracted on a rail 12 to leave the core 22 in the other half 16 which is pivoted to deposit the core 22 on the conveyer 24 in its raised position 24a. The conveyer is lowered and the conveyer operated to remove the core 22 from the machine.
Patent GB-1335977-A (GB)
Title: Overhead travelling cranes
IPC: B66C17/00
Filed: 1971-04-19
Abstract: 1335977 Cranes ADAMSON ALLIANCE (HORSEHAY) Ltd 19 April 1971 [10 March 1970] 11306/70 Heading B8B An overhead travelling crane comprises a main beam structure supported at each end by wheeled bogies on rails and including two girder structures 10 having a pair of rails 23a, 23b along which a crab is adapted to move, the crab comprising two end units 30 carrying the lifting winch drums 46 and a central frame 31 pivotally connected at 32 to both units 30, wheels on the central frame being supported on the inner rails 23b of each pair and wheels on the end units being supported in the'outer rails 23a. The drums 46 are driven through reduction gearing by a pair of mechanically coupled electric motors mounted at the top of the central frame, the gearing for each drum being further coupled by a shaft flexibly coupled therebetween. Each girder 10 comprises outer and inner box girders 12 and 13 connected at their ends by end ties 14, the adjacent ties 14 of each girder being pivotally connected through a link 11. An auxiliary hoist 25 is mounted below the motors on the central frame 31 and is movable along rails 24 secured one on each grider structure 10. The electrical supply for the main and auxiliary winch motors is carried through gantry pick ups 49, 28. In a further embodiment of Figs. 4, 5, 6 (not shown) two lifting winch drums are provided on each end unit, each of two motors on the central frame being drivingly connected to one drum on each end unit, and the two drums on each unit being geared together.