baber/WOPTO huggingface dataset:
Patent GB-1355538-A (GB)
Title: Benzocycloheptathiophene derivatives
IPC: C07D333/80
Filed: 1971-06-04
Abstract: 1355538 Benzocycloheptathiophene derivatives SANDOZ Ltd 19 April 1971 [11 March 1970 31 July 1970] 18940/73 Divided out of 1355537 Heading C2C Novel compounds of the Formula (VII) wherein R 1  is H, halogen or C 1-4  alkoxy, and Y is Cl or Br in the 9 or 10 position, may be obtained by splitting off hydrogen halide from a compound of the Formula (XI) under alkaline conditions, for example by reaction of the compound with a solution of sodium or potassium hydroxide in an inert organic solvent. The intermediate of Formula XI may be obtained by chlorinating or brominating a compound of the Formula IX The 9,10-dibromo compound of Formula XI may also be obtained by reacting a compound of Formula X with N-bromosuccinimide in an inert organic solvent.
Patent GB-1423717-A (GB)
Title: Liquid crystal display system
IPC: G09G3/36
Filed: 1973-04-19
Abstract: 1423717 Matrix displays ING C OLIVETTI & C SpA 19 April 1973 [10 May 1972] 18943/73 Heading G5C [Also in Division H1] A liquid crystal display system comprises a panel with a common electrode 17 and a plurality of non-connected spot electrodes 19 respectively on either side of the liquid crystal material 11 and actuating means 21 to create an electric field about an electrode 19 without conductive compling between the means 21 and electrode 19. Both electrodes may be transparent; alternatively electrode 17 may be reflective or a reflector may be placed behind it. A portion of the material is excited using a Tesla coil 21 which induces an A.C. potential on an adjacent spot electrode, e.g. 23. The liquid crystal material is nematic, e.g. MBBA or EBBA and contains optionally 10% of a cholesteric type to give a memory effect. In the latter ease the common electrode is replaced by two crossed conductor arrays separated by a dielectric, the electrodes of each array being interconnected. The inner array acts as the common electrode and a h.f. potential applied between the arrays erases a display or portion thereof. Another embodiment includes liquid crystal material, which rotates the plane of polarization, and polarizers on either side of the material with their planes of polarization parallel or at right angles. This panel forms the face plate of a C.R.T. and the material is energized using the electron beam. Alternatively a Tesla coil or other means producing an A.C. or D.C. field can be used.
Patent GB-1092758-A (GB)
Title: Improvements in or relating to closure devices
IPC: B65D41/12
Filed: 1965-05-05
Abstract: 1,092,758. Container closures. INTERNATIONAL CROWN CORPORATION. May 5, 1965 [May 7, 1964], No. 18948/65. Heading B8T. A crown cap has a corrugated skirt 12 and a tab 6 with radial ribs 8 and a line of weakness 18 extends upwards from the skirt edge to facilitate the removal of the cap when the tab is pulled. During removal, the cap is torn at the weakening line and the bottle contents are vented before the skirt corrugations pass over the bottle lip. The skirt may be cut through at the line 18 and when placed on the bottle the wall portions adjacent the line are in overlapping relationship.
Patent GB-237626-A (GB)
Title: Process for the preparation of a base exchanging substances for removing iron, manganese, calicum and magnesium from water
IPC: C01B33/46
Filed: 1925-07-25
Abstract: A base-exchanging substance suitable for removing iron, manganese, calcium and magnesium from water is made by granulating a suitable clay containing little or no bases such as lime, calcining it at 500-700 DEG  C. and then treating with a solution of alkali hydrate or carbonate; for instance, the granulated and burnt clay may be boiled for 1/4 to 4 hours in a solution corresponding with 1 per cent of sodium oxide or 2 per cent of sodium carbonate.  The treated clay is washed until neutral before use.  Specification 227,631 is referred to.
Patent GB-195901-A (GB)
Title: Improvements in metal punching machines
IPC: B21D28/04
Filed: 1922-07-11
Abstract: 195,901. Bennie, H. O. July 11, 1922. Punches. - Relates to punching machines of the type in which the punch may be automatically stopped' at a predetermined point in its stroke and consists in providing means whereby the punch is permitted a slight longitudinal floating movement in the punch head combined with means for adjusting the extreme of the said floating movement. The punch A is secured by a nut C to a headed rod B which is supported by a spring E carried in a threaded gland nut F, which is adjusted to regulate the amount of longitudinal float permitted to the punch A and is locked in the adjusted position by a set-screw G. In small punches the supporting spring E may be omitted. When the punches are horizontal the supporting spring E is replaced by a light spring holding the punch up to the work. The invention may be applied to multiple punch machines. Specification 128,432 is referred to.
Patent GB-1193392-A (GB)
Title: Regeneration of Caustic Liquor for Etching Aluminum
Inventor: WEISSENBERG ULRICH WOLFGANG
IPC: C01F7/0606
Filed: 1968-04-23
Abstract: 1,193,392. Etching. DOW CHEMICAL CO. 23 April, 1968, No. 19182/68. Heading B6J. [Also in Divisin C1] An etchant for Al or Al alloys containing at least 70% Al consisting essentially of an aqueous alkali metal (or metals) hydroxide solution of alkali metal aluminate is regenerated by treatment with finely divided (e.g. diameter 7.5 x 10<SP>-2</SP> mm.) alkaline earth metal (AEM) oxide and separating the AEM aluminate which precipitates out. AEM oxide may be MgO, CaO, SiO, BaO, calcined dolomite or mixtures thereof.
Patent GB-1386968-A (GB)
Title: Adhesive tape
IPC: C09J7/38
Filed: 1971-06-07
Abstract: 1386968 Adhesive tape AGFA-GEVAERT 26 May 1972 [7 June 1971] 19182/71 Headings C3P and C3R An adhesive tape comprises a support, such as cellulose triacetate film, and an adhesive layer comprising a homogeneous mixture of an alkali or water-soluble polymer and a tackifier which is a carboxylated monoether of a polyglycol. The tackifier preferably has the formula R-X-O-A-COOH where A is ethylene or methylene, X is a chain of 7-30 oxyethylene groups optionally interrupted by one or more oxypropylene groups, and R is an alkyl phenyl group whose alkyl group container 8 or 9 carbon atoms or a saturated or mono-unsaturated C 12  to C 18  hydrocarbon group. The adhesive and the tackifier may be coated on to the support from a solution, e.g. in methanol, ethanol and/or water giving a tape which can be cleanly removed by water or alkali when required. In the examples the tackifier is a compound of the above formula wherein A is methylene and R is octylphenyl, lauryl, oleyl or heptadecyl and the adhesive is a mixture of a dimethylhydantoinformaldehyde resin with one of the following: polyacrylic acid; acrylic acid-methyl acrylate copolymer; acrylic acid-n-butyl acrylate copolymer; methacrylic acid-methyl methacrylaten-butyl acrylate terpolymer.
Patent GB-624972-A (GB)
Title: Demodulators for electric pulse communication systems
IPC: H03K9/04
Filed: 1947-07-18
Abstract: 624,972. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd. July 18, 1947, No. 19282. Convention date, July 27, 1946. [Class 40 (v)] [Also in Group XL (b)] Time-modulated pulses are demodulated by applying them to the grid 8 of a cathode-ray tube 9, the beam of which is swept across an apertured plate 13 with secondary-emission targets or dynodes 12 situated behind each aperture, a sawtooth voltage being applied between the dynodes and the plate. The pulses may be derived from a radio receiver 7, and may comprise a marker pulse 6, Fig. 2, followed by a series of time-modulated short pulses 1 ... 5, each belonging to a separate channel of communication. The marker pulse may be separated by a selector 15 and used to synchronize a two-phase generator 14 which energizes the deflecting-system 11 to sweep the beam in a circular or other path across the apertures in the plate 13. The marker pulse is passed through a delay device 19 to syn- . chronize a sawtooth or like generator, which creates voltages such as 16, Fig. 2, across the gaps between the plate 13 and the dynodes 12. When the pulse switches on the beam as it passes a particular dynode, current passes through the corresponding resistor of a valve linearly related to the momentary value of the sawtooth voltage, and therefore to the time displacement of the pulse; so that amplitudemodulated pulses may be taken to the individual channel receivers connected across the resistors 18. The apertures and the dynodes are wide enough to permit the whole beam to strike the dynodes. Specification 603,614 is referred to.
Patent GB-380538-A (GB)
Title: An improved machine for opening or expanding collapsed tin cans or other receptaclesformed of sheet metal
IPC: B21D51/26
Filed: 1931-07-04
Abstract: 380,538. Reshaping flattened cans. RHODES, C. J., Grove Iron Works, Wakefield, Yorkshire. July 4, 1931, Nos. 19342 and 25223. [Class 83 (iv).] Flanging.-Flattened can bodies are reshaped to cylindrical form by a machine in which wedge-shaped mandrel halves or other parts 17, 17a, Fig. 9, enter the can, one from each end, and slide over each other to expand the can to shape. The cans are stacked in a hopper 13 and are fed one by one by a stepped slide 16 reciprocated by a cam 42 and linkwork 47, the slide being returned by a spring 50. To enter the flattened can, the mandrel edges are tilted towards the can ends by cam faces 27 acting on rollers 30 on the mandrel housings, the tilting being restrained by friction discs 33, Fig. 7, bearing on the housing trunnions. Each half mandrel 17 is then advanced into the can by toggle linkwork &c. 38, reciprocated by a crosshead 11 coupled to the crank 9a of the shaft 9. The can is held in position during working and stripping by grippers 60 pressed inwards towards the mandrel by arms 55 operated by cam 52 on the main shaft. The stepped part 17b of the half mandrels then allows them to move axially a little, so that the recesses 20 in their endplates form flanges on the can ends.
Patent GB-718161-A (GB)
Title: Improvements in or relating to electric heating elements
IPC: H05B3/26
Filed: 1952-07-31
Abstract: An electric heating element comprises a base material carrying a hardened dimensionally stabilized thin electrically conductive film consisting of an initially fluid non-conductive organic binder cured to permanently solid form and containing flaky metal particles not above 40 microns in size and flaky graphite particles under 10 microns in size, the film resulting from curing the binder to non-meltable form with the conductor flakes maintained in contacting, interfitting relation in the binder. The binder comprises a thermosetting resinous plastic material, e.g. a silicone resin, or an alkyd, phenolic, furfural, or vinyl resin, where applied to a rigid member, or may be flexible where applied to a woven fabric or tape, and may comprise a silicone rubber, natural rubber, buna N or neoprene.  The metal particles may be silver, nickel, zinc or an alloy, e.g. stainless steel and are preferably under 15 microns in size.  In order to increase the resistance of the film, metal oxide particles 15 to 40 microns in size are uniformly distributed therein, e.g. antimony oxide, titanium dioxide, zinc oxide, chromic oxide or ferric oxide.  The graphite particles are preferably of 1-5 microns. The graphite and the metal oxide have a negative temperature coefficient and the metal has a positive temperature coefficient, and the whole resistance has a small positive temperature coefficient, e.g. 0.004 per 1 DEG C.  A fire retardant material normally stable but producing a flame quenching gas, may be distributed in the binder and may comprise a chlorinated hydrocarbon plasticizer, e.g. chlorinated polyphenyl to release chlorine at 600 DEG F.  The metal oxide also acts as a fire retardant.  Examples of proportions of the ingredients used are given.  Thus the film may comprise 30 parts amorphous graphite; 30 parts antimony oxide, 40 parts silver, 8 parts chlorinated hydrocarbon and 80 parts alkyd resin. Another example is 11.5 parts nickel, 68 parts zinc, 10 parts graphite, 4 parts chlorinated hydrocarbon and 80 parts alkyd resin.  The film is applied to a surface, e.g. a wall or an aircraft surface to be kept free of ice, by spraying or knife spreading, preferably after thinning with a solvent such as a hydrocarbon xylene, alcohol, ketone, ester or ether.  The film is then heated to drive off the solvent and cure the resin and is preferably 0.001-0.025 ins. thick. If the surface to be coated is electrically conductive, it has first applied thereto an insulating layer comprising a binder as set out above mixed with mica and vermiculite.  The layer is thermally cured and when cured some of the particles therein migrate into the lower layer.
Patent GB-1310311-A (GB)
Title: Rigid wall structure
IPC: E04C2/38
Filed: 1971-06-08
Abstract: 1310311 Walls ALUMINUM CO OF AMERICA 8 June 1971 [16 June 1970] 19464/71 Headings E1K and E1W A panelled structure for use as an exterior wall comprises a corrugated sheet metal panel 10 with, e.g., trapezoidal corrugations, and a sill member 22 and a head member 24, fixed to the bottom and top respectively by means of clamping members 26, the sill, head, and clamping members each having a corrugated flange to co-operate with the panel, which is provided with locating tabs 16 and 18. The clamping members are screwed or bolted in position, with their C-sectioned edges 46 engaging around the edges of flanges 40 on the sill and head members, and their corrugated edges engaging the locating tabs, Fig. 2 (not shown). A sealing gasket 76 may be fixed to the sill member to co-operate with a foundation, and a beam for carrying roof trusses may be supported on the head member. The sill, head and clamping members are preferably extruded metal members. Drainage holes may be provided in the sill member. The tabs 16 may alternatively contact the members 22 and 24.
Patent GB-734989-A (GB)
Title: Synthetic resin and method of making the same from furacrolein, furfural and formaldehyde
Inventor: LANTZ WILLARD JOHN
IPC: C08G2/00
Filed: 1953-07-14
Abstract: A resin is made by condensing, in an acid, aqueous medium, furacrolein, furfural and formaldehyde, the mol. ratio of furacrolein to furfural being 1-10 : 1, and the mol. ratio of furacrolein plus furfural to formaldehyde being 0.5-1.6 : 1. Instead of pure furacrolein the crude reaction product of furfural and acetaldehyde may be used.  The resin may be used for impregnating or coating textile fabrics, paper, concrete, asbestos sheets, glass or mineral, wool, metals or magnesia blocks; as in adhesive especially for use under water; or as a binder for powdered metals for electrically conducting bodies or for patching compositions for metal casings. Specified acid catalysts which also act to cure the resin are hydrochloric, phosphoric and p-toluene sulphonic acids, ferric chloride and stannic chloride. The resin is also cured by alkaline materials, e.g. quicklime, hydrated lime, magnesia, sodium hydroxide, potassium hydroxide, ammonium hydroxide, diethylenetriamine, dipropyltriamine or ethylene diamine.  The curing catalyst may be added as such or dissolved or dispersed in a liquid, e.g. ethanol, carbon tetrachloride, acetone or tetrahydrofuran.  The resin may contain a plasticizer, e.g. polyvinyl formal, polyisobutylmethacrylate, tricresyl phosphate, polyisobutylene, glycerine, a glycol or a chlorinated diphenyl or a filler, e.g. carbon flour, silica, mica, asbestos, lime, magnesia, paper pulp, wood flour or powdered iron, copper, lead aluminium or stainless steel.  The resin may be added to Portland cement to increase its acid- and water-resistance (see Group V).  A minor proportion of the resin may be added to a thermoplastic resin, e.g. polyvinyl formal, to increase its hardness and melting point or to an epichlorohydrin bisphenol resin.  In examples (1) crude furacrolein, formaldehyde and furfural are condensed under reflux in presence of HCl, the aqueous layer adjusted to pH 4.5-5.5 with NaON and then removed. A coating composition is made from the resin, polyvinyl formal, carbon flour, lime and diethylene triamine; (2) crude furacrolein is purified by steam distillation and condensed with formaldehyde and furfural as in example 1.  A coating composition is made from the resin, fine mica and diethylene triamine; (3) the resin of example (1) is heated under vacuum at 72-197 DEG  F. to remove volatile material.  A coating composition is made from the resin and polyvinyl formal, carbon flour, and p-toluene sulphonic acid or lime; (4) the resin of example 1 is heated at 210 DEG  F. for 5 hours.  A coating composition comprises the resin, polyvinyl formal, fine mica and orthophosphoric acid.ALSO:By mixing a resin derived by condensing furacrolein, furfural and formaldehyde (see Group IV (a)) with Portland cement and water, the cement thus produced possesses increased acid-and water-resistance.  The amount of resin used is about 5-25 per cent based on the weight of the dry cement.
Patent GB-337360-A (GB)
Title: Process for the preparation of a raw material suitable for artificial silk
IPC: D01F2/00
Filed: 1929-06-25
Abstract: 337,360. Bosse, ,A. June 25, 1929. Pulp, preparation of. - Peat is boiled with ammonia under pressure, acidified and after a time washed until neutral, treated with alkali or earth alkali-lye and then employed in the manufacture of artificial silk. In an example peat containing 75 per cent of water is boiled with one twentieth of its weight of a normal solution of ammonia under pressure. The mass is soaked on a sieve until completely clean water runs off and is then acidified with dilute sulphuric or other mineral acid, or with an organic acid. After standing 30 minutes, the mass is washed until neutral, bleached with chloride of lime solution, washed and treated with sodium bicarbonate solution. washed, and pressed. The product may then be acetylated. Instead of peat in its natural condition, mechanically treated peat such as peat mould may be used.
Patent GB-1193042-A (GB)
Title: Conveying Device for Documents.
IPC: G06K13/073
Filed: 1968-04-25
Abstract: 1,193,042. Feeding and delivering sheets. INTERNATIONAL STANDARD ELECTRIC CORP. 25 April, 1968 [28 April, 1967], No. 19530/68. Heading B8R. [Also in Division G4] A device for conveying documents to and from a scanning station comprises two cylindrical members, which are rotated to feed and deliver documents respectively, each cylindrical member comprising a set of discs spaced apart along an axle, the two axles being parallel and separated by a distance less than the combined sum of the radii of the two cylindrical members, and the sets of discs being offset with respect to each other so that they are interleaved (Fig. 2, not shown). The general arrangement is illustrated in Fig. 1, wherein individual documents 1 are fed between feed rollers 2, 3 and into the nip of rollers 4, 5 where they are gripped by roller 4 and endless belt 6 which routes them to cylindrical feed member 7. The documents then pass through a guide frame 9 and scanning station, then between cylindrical delivery member 10 and endless belt 11 to sets of feed rollers 12, 13. A second scanning station may be incorporated between member 10 and rollers 12. The members 7 and 10 are rotated at the same speed as each other, while the endless belts 6, 11 also travel at the same speed, the drive optionally being supplied by the belts.
Patent GB-1497592-A (GB)
Title: Contact fusing apparatus
IPC: G03G15/20
Filed: 1975-05-09
Abstract: 1497592 Fusing XEROX CORP 9 May 1975 [24 June 1974 (3)] 19549/75 Heading G2H A heated roll contact fuser 15 allows drive to the rolls to be over-ridden and copy sheets moved manually to fuse an image in the fuser in the event of a stoppage for a jam etc. As shown a one-way clutch 162 on driving sprocket 161 transmits drive to the pressure adjustable rolls 30, 32. Links 100 can be adjusted to vary the pressure of a release material applicator in the form of one wall of a sump 68, against a roll 30. Counterweight adjustable stripper fingers are provided, and the nip pressure is produced by adjustable springs. Materials for the rolls, release material and applicator are described.
Patent GB-437716-A (GB)
Title: Improvements in or relating to rollers for use on drag or trailing devices of trawl nets
IPC: A01K75/06
Filed: 1934-07-03
Abstract: 437,716. Trawling. CHANT, J., Seven, Radford Park, Plymstock, Devon. July 3, 1934, No. 19566. [Class 48] The turning of ground rope rollers is assisted by screw vanes 6. A resilient tyre 8 is provided. Specification 437,667 is referred to.
Patent GB-808800-A (GB)
Title: Press tools made from a copper-aluminium-iron-manganesenickel alloy
IPC: C22C9/00
Filed: 1957-06-21
Abstract: Press tools are made of a copper-base alloy having a composition in the following range in per cent by weight: Al 12.0-24.0; Fe 4.0-6.0; Mn 4.0-6.0; Ni and/or Cr 1.0-3.0.  Cu, and not over 2.0 of impurities, the remainder.
Patent GB-616785-A (GB)
Title: Improvements in and relating to methods of indicating the condition of electric circuits
IPC: H02H3/04
Filed: 1944-10-11
Abstract: 616,785. Electricity supply charging batteries. BRITISH THOMSON-HOUSTON CO., Ltd., RAYDEN, R. G., and MARTIN, E. H. B. Oct. 11, 1944, No. 19607. [Class 38 (iv)] In a system wherein a generator A supplies current to a battery F and load E through a rectifier C and fuse D, blowing of the fuse or failure of the generator is indicated by a lamp or the like J connected to points on resistor K, H, which are energized respectively by the battery voltage and a voltage obtained from the generator over a rectifier G. The points to which the lamp is connected are normally at equal potential so that the lamp does not light, but under fault conditions the voltage drops between these points and earth become unbalanced and the lamp is thus energized.
Patent GB-1044299-A (GB)
Title: Improvements in or relating to stillages and like transportable load-carrying appliances
Inventor: FOWLER ALBERT EDWARD
IPC: B65G67/02
Filed: 1963-05-17
Abstract: 1,044,299. Stillages. ABELSON & CO. (ENGINEERS) Ltd. Aug. 17, 1964 [May 17, 1963], No. 19652/63. Heading B8H. [Also in Division E2] A stillage comprises a platform to each of two opposite sides of which two legs are pivotably connected so as to be movable between operative positions, wherein they depend perpendicularly and support the platform at a distance above ground level which enables the chassis of a transporter to be driven between the legs whereupon the stillage may be raised by actuation of lifting mechanism incorporated in the transporter, and idle positions wherein there extend horizontally lengthwise of the platform. As shown, a platform has an oblong frame with wide members 1 of Z-section and each leg 7 is pivotally mounted on a shaft 6 carried in bearings 5, 8. A collar 11 is attached to the shaft 6 and is loaded by a compression spring 12 against a sleeve 10 attached to the bearing 8. A pin 20 attached to the shaft 6 runs in a cam slot 19 in the sleeve 10. A stay 21 is attached to the leg 7 by a universal joint 22 while a flange 23 at its other end carries a stud 26 arranged to slide in a guide 25 (Fig. 7). When swung manually to its idle position (full lines, Fig. 1), the leg 7 is retained automatically by a latch pin 32 engaging a pivoted hook 34. A pivoted safety bar 39 may be swung across plates 34 to prevent inadvertent opening of the latch. When the retaining latch is released the weight of the leg 7 causes it to swing downwards and, owing to the pin 20 and cam slot 19, outwards, compressing the spring 12 so that a position of equilibrium is reached between the idle and operative positions. Thereupon, the leg 7 may be forced by hand into its operative position, further compressing the spring 12, while the stud 26 slides in the guide 25 wide enough to allow the pin 26 to rock, which is permitted by the universal joint 22) until it reaches the nose 30 of a spring-loaded latch 28 which is forced back. The stud 26 drops into a pair of pockets 27 where it is retained automatically by the nose 30 of the latch being returned over the flange 23 by the spring.