baber/WOPTO huggingface dataset:
Patent GB-824920-A (GB)
Title: Improved graft polymers
Inventor: COOVER HARRY WESLEY JR
IPC: C08F291/00
Filed: 1955-11-24
Abstract: Graft polymers are made by polymerizing from 95 to 5% by weight of a monomer composition (1) containing from 30 to 100% by weight of vinyl and/or vinylidene chloride and from 70 to 0% by weight of a different monoethylenically unsaturated polymerizable compound containing a -CH=C< group with from 5 to 95% by weight of a polymer in solution and formed by polymerization of a monomer composition (2) containing from 1 to 100% of a monomer represented by the formulae <FORM:0824920/IV (a)/1> (methacrylamides) <FORM:0824920/IV (a)/2> and <FORM:0824920/IV (a)/3> (itaconamates) and <FORM:0824920/IV (a)/4> (substituted acrylates) wherein R and R1 represent H or a C1-C6 alkyl group, R2 represents a methyl, ethyl, acetamino or carbethoxyamino group and R3 represents a C1-C4 alkyl group, and from 99 to 0% of a different monoethylenically unsaturated compound containing a -CH=C< group, the percentages of monomer being based on the total weight of compositions (1) and (2).  The preformed polymer may be dissolved in water, in aqueous acetone or organic solvents such as acetonitrile, benzene, toluene, heptane, aliphatic ethers or acetone. Polymerization may be accelerated by heat, light and catalysts such as peroxy compounds (listed), azines and ketazines.  Also present during polymerization may be specified emulsifiers, mercaptans and alkali metal bisulphites. Polymerization may be carried out batchwise or continuously and, if desired, in two stages whereby further chloride monomer is polymerized in the presence of a graft polymer formed previously. The polymers are compatible with polyvinyl and polyvinylidene chlorides and may be dissolved in acetone, methyl ethyl ketone and polyacrylonitrile solvents, from which solutions films and fibres may be made.  Specification 651,155 also is referred to.
Patent GB-1031592-A (GB)
Title: Improvements in or relating to starscopes
IPC: G09B27/04
Filed: 1963-05-28
Abstract: 1,031,592. Globes. W. A. EISENHAUER, W. P. ELLWOOD, I. J. EISENHAUER, and L. E. EISENHAUER, [trading as EISENHAUER MANUFACTURING CO.]. May 28, 1963 [April 9, 1963], No. 21356/63. Heading G5G. A celestial globe 10, Fig. 1, comprises a first member 12 having indicia 24 of celestial bodies thereon a second member 26 secured rotatably at 30 to said first member so as to be rotatable about an axis 28 and having a sight opening 34 therein through which the indicia of the celestial bodies on the first member are viewable and a hemispherical mask 40 to obscure the indicia 24 which are not visible at a selected time. In operation a specific data and time of viewing the celestial bodies is selected and a date dial selector 46 is rotated with respect to a date ring 22 until a sun arrow 52 (Fig. 3, not shown) points to the date selected. An hour dial indicator 54 is then rotated with respect to the date dial selector 46 until the midnight indication aligns with a view arrow 50 on the date dial selector, whereupon the aligned mask 40 will allow the celestial bodies which are visible at midnight to be visible within the inner surface of the globe when viewed through the opening 34. By holding the hour dial 54 stationary with respect to the date ring 22 while the date dial selector 46 and the mask 40 together with the second member 26 are rotated relative thereto until the view arrow 50 points to the new time selected on the hour dial 54 the celestial bodies visible at that time may be viewed through the opening 34, which includes an annular member 36 having the points of the compass indicated thereon. The celestial bodies indicia 24 in Fig. 1, are openings in opaque members 12, 14, but they may be replaced by luminous paint or the indicia may be painted on transparent or translucent members 12 and 14. In addition either of the members may be transparent, translucent or opaque. In another embodiment (Fig. 6, not shown), the first member may comprise a spherical segment while the second member may be of a frusto-conical form with the sight opening provided in the smaller end thereof.
Patent GB-813376-A (GB)
Title: Apparatus for making pneumatic tyres
Inventor: TREVASKIS HENRY WILLIAM
IPC: B29D30/08
Filed: 1955-07-26
Abstract: 813,376. Tyre building machines. DUNLOP RUBBER CO. Ltd. July 2. 1956 [July 26, 1955]. No. 21523/55. Class 144(1). An apparatus for winding a tyre carcass of the form described in Specification 786,162 comprises a former 14, having a part-spherical winding surface, which is rotatable both about an axis of symmetry passing centrally through its truncated ends 15, 16 and about a second axis which intersects the former axis at the centre of the former, and means 21 to lay a cord 20 on to the winding surface so that on rotation of the former about its axes the cord is laid in loops extending obliquely across the winding surface between diametrically opposite points on the former edges, touching said edges substantially tangentially. The driving means for effecting rotation about the two axes is geared so that the former rotates once about its own axis for every hundred or so revolutions about the second axis. As shown the former 14 has flared end extensions 17, 18 and is mounted axially on a spigot 7 which is mounted for rotation in one end 6 of a frame 4 the other end 5 of which is cranked at an angle of 135 degrees and secured at right angles to a spindle 1 supported for rotation in a housing 2. The extended axis of the spindle passes through diametrically opposite portions of the former edges 15, 16 and intersects the former axis at an angle of 45 degrees at the former centre. The spindle 1 is driven by a belt 3 and carries a fixed pinion 8 which transmits drive through reduction gearing 9-12 and bevel gears 13 to the spigot 7.
Patent GB-622639-A (GB)
Title: Improvements in or relating to lifting gear for ploughs
IPC: A01B63/26
Filed: 1945-08-23
Abstract: 622,639. Plough lifting-gear. PINHAY, F. A. Aug. 23. 1945, No. 21546. [Class 6(i)] Ploughshare lifting-gear comprises a screwed stem 7 turned by a handle 2 through a swivel-joint 4, 5. A nut 8 on the stem 7 is mounted in trunnions in a fork 9 bolted to the stem of the share.
Patent GB-315438-A (GB)
Title: Improvements in or relating to hydraulic change speed gearing
IPC: F16H41/04
Filed: 1929-07-13
Abstract: 315,438. Motarot Motor-Technische Apparatebau-Ges. July 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Clutches and speed-varying mechanism. - A casing k, Fig. 1, on the driving shaft a carries pump rotors b with blades c, Fig. 2, lateral blades g, and return guide blades h, and encloses a turbine rotor e with blades d.
Patent GB-801069-A (GB)
Title: Improved rotary pump of the sliding vane type
IPC: B62D5/06
Filed: 1956-07-13
Abstract: 801,069. Rotary pumps. TEVES, H., and TEVES, E. A., [trading as TEVES MASCHINEN-UND ARMATURENFABRIK KOMMGES. A.]. July 13, 1956 [July 23, 1955], No. 21740/56. Class 110 (2). In a rotary pump having a plurality of circuits 5, 6, 7 connected in parallel with a reservoir 3 and discharging through a valve 2 to a point of use, the valve automatically renders the circuits 5 and 7 ineffective one after another in order to maintain the delivery constant over a large range of speed. At low speeds the fluid is fed through the passages 14, 17, 18 of the valve unheeded but when the speed increases the slide 16 connects the pressure conduit 23 with a return line 30. Moreover, the chamber 14 is connected to a conduit 37 leading to surge chambers 31, 32 for relieving the rotor of load. Continued movement of the slide connects the pressure conduit 12 to a return line 29 by way of a conduit 24 and also connects the chamber 14 with a third surge chamber 33.
Patent GB-517201-A (GB)
Title: Improvements in automatically tuned radio receivers
IPC: H03J5/14
Filed: 1938-07-22
Abstract: 517,201. Wireless receiving sets. STANDARD TELEPHONES & CABLES, Ltd. (Visschers, P. A. J.). July 22, 1938, No. 21841. [Class 40 (v)] In a press-button tuned wireless receiving set a press-button is only effective if the wave change switch is set to the band which includes the required station. The press-buttons may be duplicated for remote control. The circuit of motor M which drives the tuning mechanism of the receiver includes wiper 4a which is set by the wave-change switch so that if a button say B3 is operated the motor circuit is completed only if the wiper 4a is in the appropriate position, i.e., the long-wave position LW. Press-button B12 connects the wave-change contacts to the remote control equipment.
Patent GB-1368069-A (GB)
Title: Digital communications systems
IPC: H04L27/20
Filed: 1972-10-19
Abstract: 1368069 Digital diphase transmission POST OFFICE 19 Oct 1972 [20 Oct 1971] 21881/73 Divided out of 1368068 Addition to 1368068 Heading H4P The disclosure is identical to the parent Specification 1,368,068, but the claims are directed to the use of a mod-2 adder 2 for summing an isochranous baseband data signal and a square wave carrier signal having a period equal to bit rate, and a 90 degree phase advance.
Patent GB-1240046-A (GB)
Title: Improvements in or relating to multichannel measuring instruments
Inventor: SELIBER BORIS ABELEVICH
IPC: G01D7/02
Filed: 1969-04-30
Abstract: 1,240,046. Indicating-apparatus. B. A. SELIBER. April 30, 1969, No.22014/69. Heading G1J. A multi-channel indicating-instrument 1 comprises two stacks 12 of identical measuring assemblies 11 each incorporating a mirror 13 rotatable about an axis in accordance with a measured variable and arranged to reflect a light beam on to a common scale 3, the assemblies being arranged so that the axes of rotation of the mirrors 13 are co-linear in each stack and parallel to those in the other stack and so disposed in relation to two auxiliary mirrors 23 that the images therein of the parallel axes all lie on a common line in a longitudinal plane of symmetry of the instrument thus equalizing the path lengths of the beams from the rotable mirrors to any point of the scale 3. A numbered diaphragm in an aperture 17 in each assembly may be projected by its beam on to a grid 4, Fig. 4, forming the scale 3 to identify the variable whose value is indicated thereby. Another stack of measuring assemblies could be disposed with the axes of its rotatable mirrors coincident with the common line on which the images lie. Coloured filters may be used behind the scale 3 to alter the colour of a light spot formed on the scale when it reaches a predetermined position.
Patent GB-909614-A (GB)
Title: New cyclopentanophenanthrene derivatives and processes for the production thereof
IPC: C07J75/00
Filed: 1959-06-26
Abstract: The invention comprises 16-methyl steroids of the general formulae: <FORM:0909614/IV (b)/1> <FORM:0909614/IV (b)/2> and their corresponding D 1,4-analogues (R and R1 are both hydrogen or a hydrocarbon carboxylic acyl group of less than 12 carbon atoms, or R is hydrogen and R1 is a hydrocarbon carboxylic acyl group, X is keto or b -hydrogen, and Y is hydrogen, fluorine, chlorine or bromine) and processes for their preparation from 16a -methyl-D 5-pregnene-3b ,17a -diol-20-one by tribromination to the 5,6,21-tribromo derivative treatment with sodium iodide and then potassium acetate followed by oxidation of the 3b -ol and isomerisation of the D 5-bond to yield 16a -methyl-D 4-pregnene 17a ,21-diol-3,20-dione 21-acetate, which may be dehydrogenated with selenium dioxide or by micro-organisms to the D 1,4-analogue.  The 9a -halo compounds are subsequently prepared by introduction of an 11a -hydroxy group with Rhizopus nigricans or Aspergillus niger, dehydration to a D 4,9(11)-compound, treatment with N-bromoacetamide, conversion of the bromohydrin to the 9b ,11b -epoxide and finally cleavage of the oxide with HF or HCl. Detailed examples illustrate the invention.  Specification 899,582 is referred to.
Patent GB-255256-A (GB)
Title: Improvements in electric cables
IPC: H01B7/04
Filed: 1925-09-03
Abstract: 255,256. St. Helens Cable & Rubber Co., Ltd., and Evans, H. Sept. 3, 1925. Cables with auxiliary conductors: cables with artificially modified capacity.-In flexible electric cables of the kind in which a metal sheathing which may be used for earthing is embedded in the tough rubber compound sheathing, the metal sheathing is in the form of a lapping of wire cloth of fine mesh or flat braided cloth, and may be applied as a helical winding.
Patent GB-505650-A (GB)
Title: Improvements relating to the joints between the abutting sections of concrete road and like coverings
IPC: E01C23/02
Filed: 1937-08-11
Abstract: 505,650. Joints for concrete roads and the like. WIELAND, G. Aug. 11, 1937, No. 22083. Convention date, Aug. 11, 1936. [Classes 20 (ii) and 20 (iv)] The abutting sections of a concrete road or like covering are joined by dowels 5, which are inserted, as shown in Fig. 3, after setting of the concrete of the sections, into mortices formed by corresponding grooves 3, arranged in the adjacent edges of abutting sections and extending from the top to the bottom surfaces thereof, and each pair of adjacent edges of abutting sections has at least one pair of such mortices oppositely inclined to each other in the plane of such adjacent edges. The mortices are moulded by mould boxes 7, each of which is of H-shape in'cross-section as shown in Fig. 4, and has its end faces parallel to each other and at the desired inclination to produce the inclined mortices. The mould box is adapted to fit over a board 2 which is provided along the joint line and has a cut-out portion 12 in its upper surface to engage the box. The lower layer of the concrete sections is first cast, and, after this layer has set, a joint-iron 1 is placed in the recesses 8 in the upper parts of aligned mould boxes and the upper concrete layer is cast. The joint-iron 11 and boxes 7 are subsequently removed and the portions of the board disposed within the mortice spaces are cut away. A dowel 5 of hard wood is then inserted in the lower part of each mortice, and the upper part thereof is filled with concrete 6. The space moulded by the joint-iron 11 between adjacent sections is, preferably, filled with bitumen. If desired, the boxes 7 are coated with bitumen prior to casting the concrete, and, after the latter has set, the coating is softened, preferably by injecting steam through an inlet 10, to facilitate removal of the boxes. The Specification as open to inspection under Sect. 91 describes also the following features, viz. : (1) The dowels are formed of oil-saturated hard wood, or metal provided with a protective coating of bitumen or non- corrosive metal, and may be made in a number of parts; (2) the joint-iron 11 is hollow and provided with inlets and outlet openings for the passage of steam or hot air for softening a previously-applied coating of bitumen provided on the joint-iron ; (3) the mould-box is formed without a bottom wall. This subject-matter does not appear in the Specification as accepted.
Patent GB-1004110-A (GB)
Title: Self-advancing support structure for a mine gallery roof
IPC: E21D23/00
Filed: 1962-06-07
Abstract: 1,004,110. Advancing mine roof supports. M. VON LINSINGEN, [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. June 7, 1962 [June 9, 1961], No. 22100/62. Heading E1E. In an advancing mine roof support system two adjacent props 2 are provided with a common shield 4 having a fork and tongue connection with the roof bars 1 of the props. The shield is connected to the props by rods 9 and to the conveyer by an advancing jack 10. The shield has closed side walls and a skid base and is open towards the working face.
Patent GB-878324-A (GB)
Title: Organic polymeric phosphonitrilic derivatives
Inventor: FLATAU ARNOLD STANLEY
IPC: C08G8/00
Filed: 1958-07-10
Abstract: Synthetic resins are produced by reacting a polymer of phosphonitrilic chloride having at least 3 (PNCl2) units per molecule with at least sufficient arylmonohydroxy compound to react with all the chlorine of the phosphorus-containing polymer. When the reactants are used in stoichiometric amounts an inert high boiling solvent (such as the chlorinated aromatic hydrocarbon sold under the Registered Trade Mark "Aroclor") for the reactants and the products are added.  Preferred arylhydroxy compounds are phenol and naphthol. In the Examples (1) phenol was refluxed with a phosphonitrilic chloride polymer at about 182 DEG C.; (2) is similar using b -naphthol.  The resinous product could be cured by heating with butyl titanate and/or with benzoyl peroxide; (3) b -naphthol was condensed with phosphonitrilic chloride polymer in presence of "Aroclor" as an inert liquid reaction medium.  The resin may be used for coating (e.g. by dipping) or laminating.  A 50% solution in cyclohexanone makes an insulating varnish.
Patent GB-359543-A (GB)
Title: Device for checking phase in phototelegraphic apparatus
IPC: H04N1/36
Filed: 1930-07-24
Abstract: 359,543. Copying telegraphy. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Nippon Denki Kabushiki Kaisha; 2, Mita Shikokumachi, Shibaku, Tokio.) July 24, 1930, No. 22325. Convention date, Aug. 15, 1929. [Class 40 (iii).] In a copying telegraph system in which synchronism signals are provided by periodically interrupting the picture signals at the transmitter, as by the clip 26, Fig. 1, on the picture drum 14, the receiver is provided with a cam mechanism 52, Fig. 2, driven in fixed phase relationship with the picture drum 43 and adapted to interpose a screen 50 in the path of the recording beam at the periodicity of the interruption of picture signals so that the appearance of the screen indicates the phase relationship of the receiver and transmitter. Light from a source 16, Fig. 1, is interrupted by a toothed disc 18, passes through the transparency on the drum and is reflected by a prism 20 to the cell 21. The drum 14 rotates with the shaft 13 and is traversed on the shaft 13 by the rotation of a shaft 10 coupled to gearing 7 by a magnetic clutch 15. A direct-current motor 4 is controlled by a synchronous motor 3 fed with alternating current from an oscillator 1. Currents from the oscillator and the picture signals are transmitted to the receiver, Fig. 2, and after separation and amplification are respectively applied to the synchronous motor 37 controlling the direct-current motor 38, and the two-string oscillograph 29 modulating a source of light 30. The drum is driven by gearing and clutch mechanism identical with that at the transmitter and light from the oscillograph passes through the aperture 32 to record on the drum. A cam 52, Fig. 3, is geared to the motor and operates the screen 50. The phase may be adjusted by manual rotation of the stator of the motor.
Patent GB-1034504-A (GB)
Title: Improvements in or relating to methods of producing magnetic iron oxide, ª feo
IPC: C01G49/06
Filed: 1963-06-05
Abstract: g -Fe2O3 is prepared by oxidizing, by the passage of an oxidizing gas, a ferrous compound of poor water solubility, e.g. Fe(OH)2 or FeCO3, in an alkaline liquid of normality more than 0.2N to form Fe2O3nH2O, where n may be 1 or 2 have any intermediate value, followed by reduction of the Fe2O3nH2O and subsequent oxidation. After a major part of the ferrous compound has been oxidized a fresh quantity thereof may be added to the reaction mass.  To an aqueous solution of ferrous sulphate, sodium carbonate, potassium hydroxide or sodium hydroxide solution is added, followed by a sodium hydroxide solution where sodium carbonate is the precipitant, and air is passed through the mixture at ambient temperature for e.g. 94-138 hours at a rate of e.g. 5 litres/minute.  The precipitate formed is washed with distilled water until the pH of the washing liquid is below 7, rinsed with acetone, air dried and converted to g -Fe2O3 by reduction and subsequent oxidation.
Patent GB-1501285-A (GB)
Title: Printing press including a chain conveyor
IPC: B41F21/08
Filed: 1975-05-22
Abstract: 1501285 Conveying sheets ROLAND OFFSETMASCHINENFABRIK FABER & SCHLETCHER AG 22 May 1975 [22 May 1974] 22365/75 Headings B8A and B8R Sheet grippers 4, 6, in a printing machine are carried on endless chains by being mounted on rods which are terminated at each end (one end only, shown in Figs. 1-3) by a head 7. The latter has parallel bores which respectively receive pins 11 and 12, each of which carries a respective element 9. Each of these carries a pair of spaced pins 8 which replace roller bearing pins of the conveyer chains. There may be more than two linking elements 9 and associated pairs of chain pins 8. The pin 12 may have lost motion in its associated bore.
Patent GB-1509114-A (GB)
Title: Method of flattening a thin tubular sheath of plastics material and apparatus for carrying out this method
IPC: B29C48/03
Filed: 1976-05-28
Abstract: 1509114 Flattening tubular film ATO CHIMIE 28 May 1976 [9 June 1975] 22366/76 Headings B5A and B5B A continuously extruded plastics tube, e.g. of polystyrene, or polyethylene, which is inflated into a cylindrical film or sheet, 9 Fig. 2, is guided into a flat configuration for presentation into the nip of a pair of opposed pinching rolls 16, between a pair of guides 15 having surfaces contacting the sheath and which are each defined at their downstream end adjacent the nip by a straight line 27, Fig. 4, parallel to the nip, and are defined at their upstream ends by the arc of a circle 24, and between their ends are defined by generatrix comprising straight lines 28 extending parallel to a plane 24 which contains the axis of the extruded tube and is perpendicular to the line 27. The surfaces of the guides ensure contact with the film, at their upstream ends, over a greater transverse extent than would occur with flat guide surfaces, and therefore ensure a smaller variation of frictional forces across the total transverse extent of contact and minimize the extent of wrinkles at the edges of the flattened film. The cylindrical film may be extruded vertically upwardly from a rotary die.
Patent GB-155033-A (GB)
Title: Improvements in chess or draught boards
IPC: A63F3/00
Filed: 1919-09-12
Abstract: 155,033. Lane, H. J Sept. 12, 1919. Board games.-A board for playing chess, draughts, &c. comprises in combination a board a marked with the requisite number of squares, an open frame b divided into a number of compartments c corresponding to the number of squares on the board a, and a lid g. The parts a, b, g are hinged together so that the frame b and the lid may be turned over the board a and secured by a catch e in order to retain the playing pieces in position when an unfinished game is to be resumed on a future occasion. The hinges are arranged so that the lid g, when raised from the frame b, assists in lifting the frame from the board a.
Patent GB-1146075-A (GB)
Title: A method and apparatus for producing and drying a continuous paper web
IPC: D21F1/00
Filed: 1966-05-20
Abstract: 1,146,075. Paper-making. KARLSTADS MEKANISKA WERSTAD, A.B. 20 May, 1966 [21 May, 1965], No. 22436/66. Heading D2A. A fibrous suspension is introduced and dewatered between a wire and a water impermeable surface to form a web which is dried by means of heat before it is separated from the impermeable surface. In one embodiment the impermeable surface is the surface of a heated dryer drum about which is disposed in succession a headbox, the wire, a press roll in a felt loop, a drying hood, and a doctor blade to remove the dried web from the drum. In a second embodiment a steel band is entrained about two spaced rotatable cylinders, with the headbox, wire, and press roll and felt loop being arranged around one cylinder, a heating unit and drying hood between the cylinders and a doctor blade about the other cylinder. A two ply web may be formed by having an additional headbox and wire disposed about the dryer drum in the first embodiment, or disposed about an additional rotatable cylinder in front of the first cylinder in the second embodiment. A web having more than two plies may be formed.