baber/WOPTO huggingface dataset:
Patent GB-1012588-A (GB)
Title: Buckle
IPC: B65D63/16
Filed: 1964-06-11
Abstract: 1,012,588. Buckles. CORISTRAP INTERNATIONAL Ltd. June 11, 1964 [June 21, 1963], No. 24225/64. Heading E2A. A buckle comprises a flat parallelogram shaped member with two long sides 10, 11 and two short sides 12, 13 each long side forming an acute angle with one of the short sides, a rectangular opening through the centre of said member, said opening having a first pair of opposed walls 14, 15 extending parallel to the short sides of said member and a second pair of opposed walls 16, 17 defining the width of said opening, and a pair of open-ended slots 18, 19 extending parallel to the short sides of the member, each slot being between one of the first pair of opposed walls and the corresponding adjacent short side. The open ends of the two slots face in opposite directions, one through side 11 and the other through side 10. The buckle is laced by passing a loop of the strap to be fastened through the central opening and slipping it over the free end of an arm 21, the other end of the strap being looped in the same manner to an arm 23. The sloping sides give added strength to the supported ends of arms 21, 23.
Patent GB-598863-A (GB)
Title: Improvements in or relating to textile milling and fulling machines
IPC: D06C17/00
Filed: 1945-09-21
Abstract: 598,863. Textile milling machines. BRADLEY, J. Sept. 21, 1945, No. 24484. [Class 42 (i)] Textile milling and filling machines are provided with means for extracting air therefrom, re-introducing said air thereto and circulating the same in a closed circuit. Heating or cooling means for the air, and means for thermostatically controlling the temperature within the machine, may be provided. The body 1 of the machine is provided with openings 3 and 4, a heater 5, which may be electrically or gas heated, registering with the opening 3, and being connected by a conduit 6 to the opening 4 through which the air is withdrawn from the machine. An electric motor 7 drives an impeller, fan or the like within the'conduit 6. A steam pipe 8 has a manually-operated valve 9 and a thermostatically controlled valve 10 electrically connected to the thermostat relay switch 11 which is also in connection with the thermo-element 12. A cooling element may be substituted for the heater 5. Filtering means may be included in the air circuit to exclude foreign matter.
Patent GB-1465047-A (GB)
Title: Log-cutting apparatus
IPC: B27B5/18
Filed: 1974-05-17
Abstract: 1465047 Sawing L M CROWLE 17 May 1974 [23 May 1973] 24504/73 Heading B5L A log cutting apparatus comprises a vertically cutting band, chain or, as shown, circular saw carried at one end of a support arm which is pivoted at its other end about a fixed horizontal axis and upwardly biased to clear a log to be cut, and provided with a handle located laterally of the plane of the saw. As shown, the support arm 2 is pivoted about a horizontal pin 3 carried by a fixed support 1. The arm carries at its free end a circular saw blade 4 belt driven from a pulley 7 which is coaxial with the pin 3 and in turn driven, as via a belt, by, e.g. an electric motor in the support 1, tractor P.T.O. or stationary petrol or diesel engine. The upper periphery of the blade 4 is surrounded by a guard 8. The arm is upwardly biased by a counterweight 11 acting through a cable 9 and is provided with a laterally extending saw depressing handle 12. A log support 13 comprises a trestle-mounted V-shaped trough. In operation, a log may be advanced along the trough manually or mechanically, the blade being brought down at intervals to cut the log. In small versions of the apparatus, the operator may depress the handle 12 with one hand whilst steadying the log with the other.
Patent GB-615293-A (GB)
Title: An improved rotor head for helicopters and gyroplanes
IPC: B64C27/41
Filed: 1946-08-19
Abstract: 615,293. Helicopter rotor mountings. FRANKLIN, H. W. Aug. 19, 1946, No. 24581. [Class 4] In a rotor head for a helicopter, each blade 11 is supported at its root by two ball joints, of which one 8, 9 is connected to a main hub 1 rotated in the central bearing 4 by shaft 3 and universal coupling 2, the other ball joint 15, 16 being connected to a hub 13 axially slidable to vary the blade pitch, on the bearing 4, which is pivotally mounted on fore and aft trunnions 5 secured to housings 6 integral with the aircraft structure. The hub 13 is carried by a bearing 12 connected by guide rods 22 to a slidable screwed sleeve 23 engaged by a nut 24. Axial movement of the hub 13 may thus be effected by turning the nut 24 through bevel gears 25 and 26 and sprocket-wheel 27 with its chain 28 leading to the pilot's cockpit. In a further embodiment, the trunnions 5 are formed inside a sub-frame, itself pivotally mounted on a lateral axis, thereby providing a universal mounting for the rotor axis. Specification 615,292 is referred to.
Patent GB-1340554-A (GB)
Title: Process for preparing a copolymer of ethylene and a conjugated diene
IPC: C08F236/04
Filed: 1971-04-19
Abstract: 1340554 Alternating ethylene-conjugated diene copolymers MARUZEN PETROCHEMI CAL CO Ltd 19 April 1971 [19 March 1970 13 April 1970] 24647/71 Heading C3P Novel copolymers of ethylene and a C 4 -C 12  conjugated diene are obtained by polymerizing the monomers in the liquid phase in the presence of a catalyst comprising (i) AlR 3 , where R is a C 1 -C 12  hydrocarbyl group, (ii) a titanium tetrahalide, and preferably also (iii) a compound containing a carbonyl group. The resulting polymer has alternating diene and ethylene units, the structure of the diene units being non- stereospecific, i.e. a mixture of cis-1,4, trans-1,4 and 1,2 (or 3,4) structures. An ethylene-rich (<20 mol. per cent of diene) random copolymer is also produced and may be separated from the alternating copolymer by solvent extraction. The alternating copolymers have low melting points (<55‹ C. for butadiene copolymers) or do not melt, and they are elastomeric. The examples describe the preparation of copolymers of ethylene with butadiene or isoprene in a small volume of toluene using.as the catalyst (i) AlEt 3  or Al(i-Bu) 3 , (ii) TiCl 4  or TiBr 4  and, optionally, (iii) acetone, acetophenone, benzophenone, acetylacetone, propionic or isobutyric acid anhydride, isobutyraldehyde, acetic acid, isoamyl acetate, diethyl malonate, benzoyl peroxide, aluminium, zinc or vanadyl acetate, TiCl(O.CO.Et) 3 , TiCl 2 (O.CO.Et) 2  or TiO(acac) 2 .
Patent GB-205092-A (GB)
Title: Improved method for obtaining positive photographic pictures by means of powdered pigments
IPC: G03F7/28
Filed: 1923-10-04
Abstract: 205,092. Namias, R. Oct. 6, 1922, [Convention date]. Chromo-gelatine, pigment, and like processes. -In a dusting-on process, a coloured powder having a base of resinous or bituminous substance to which greasy substances mav be added is applied to a layer of gelatine in which the image is formed by zones more or less soluble, and consequently more or less adhesive, and by zones rendered insoluble by the action of light. The gelatine image may be produced by exposing a bichromated gelatine layer, or by making use of the chemical action of the silver of a picture in producing insolubility of the gelatine. The powder used is impervious to water and does not stain the paper. In a method described the paper is prepared by treatment with a 10-15 per cent solution of gelatine to which sugar, gum, or like non-coloured colloid material mav be added to assist swelling, and is sensitized with a 3-5 per cent to solution of potassium or ammonium bichromate. The paper is exposed under a diapositive, swelled with water, and the pigment distributed thereon with a soft brush. The white portions of the picture may be washed with a hard brush before it is dried. To remove the yellow colour imparted by the bichromate the picture may be treated, previous to the powdering, with a 10 per cent solution of sodium bisulphite or left for a long time in cold water to which ammonia. has preferably been added. The pigment may be fixed by treatment with a weak gelatine solution. The powdered pigment used may consist of coloured natural resinous or bituminous substances such as dragon's blood (red resin), or bitumen (brown resin), or of fused resins such as colophony, shellac and damar gums, &c., preferably mixed with a greasy material such as stearine, and coloured by tar colours soluble in greasy materials, or by mixing powdered pigments with the resins, or with solutions thereof in alcohol, benzol, petrol, turpentine, or the like to obtain a paste which is dried and crushed. The powder may also be prepared by mixing a coloured pigment or a water-soluble colour with a solution of colophony or shellac gum in alkali, adding an alkaline stearate, and precipitating with an acid or alum or another metallic salt. A black pigment may be produced by melting together colophony, dammar gum, and stearic acid, adding finely ground lamp-black, and cooling and powdering. The method may also be used for preparing pure colours for the three-colour process.
Patent GB-1104710-A (GB)
Title: Process for making ammonia and urea
Inventor: HSU HENRY
IPC: C01C1/04
Filed: 1966-06-02
Abstract: An integrated process for making ammonia and urea comprises passing ammonia synthesis gas, containing carbon dioxide, nitrogen and hydrogen, into a first zone maintained under conditions to separate carbon dioxide from the synthesis gas in an ammonia-containing liquid and to obtain a condensate comprising ammonium carbamate, passing the remaining ammonia synthesis gas to an ammonia synthesis zone and passing said condensate into a second zone maintained at a pressure higher than said first zone and under urea synthesis conditions to produce urea therefrom. Alternatively, a portion of the raw ammonia synthesis gas may be passed directly to a conventional carbon dioxide purification system and the synthesis gas from which the carbon dioxide has been removed may then be passed to the ammonia synthesis zone. The ammonia synthesis may be effected by a known process and the product may be passed to the urea synthesis zone.  The whole process may be effected either batchwise or continuously.ALSO:An integrated process for making ammonia and urea comprises passing ammonia synthesis gas, containing carbon dioxide, nitrogen and hydrogen, into a first zone maintained under conditions to separate carbon dioxide from the synthesis gas in an ammonia-containing liquid and to obtain a condensate comprising ammonium carbamate, passing the remaining ammonia synthesis gas to an ammonia synthesis zone and passing said condensate into a second zone maintained at a pressure higher than said first zone and under urea synthesis conditions to produce urea therefrom. The ammonia synthesis gas is suitably passed into the condensation and absorption zone at a pressure below 1000 p.s.i.g. and the condensate is suitably pressurized and passed to the urea synthesis zone operated at an elevated pressure, e.g. between 1700 and about 3500 p.s.i.g.  The reaction effluent from the urea synthesis zone is preferably depressurized and heated to decompose ammonium carbamate to a gaseous mixture of ammonia, carbon dioxide and water, which is separated from the remaining effluent containing aqueous urea.  The gaseous mixture is preferably passed to the condensation and absorption zone in which it is condensed and used to absorb carbon dioxide present in the raw ammonia synthesis gas. A portion of the raw ammonia synthesis gas may be diverted to a conventional carbon dioxide purification system and the carbon dioxide so obtained may be passed to the urea synthesis zone to react with ammonia.  The ammonia produced in the ammonia synthesis zone may also be passed to the urea synthesis zone, and the whole process may be operated either batchwise or continuously.
Patent GB-1075466-A (GB)
Title: Open gear lubricants
Inventor: BILLETT MICHAEL GEORGE
IPC: E04B1/66
Filed: 1964-06-16
Abstract: An open-gear lubricant consists essentially, in per cent by weight, of creosote, 0.5-5.0; wool grease, 1.0-15; microcrystalline petroleum wax, 1.0-7.5; the balance being petroleum bitumen of pen (25 DEG  C.) 10-200 mm/10. The lubricant may be brushed hot or when fluxed e.g. with coal tar naphtha.  It may be used as an aerosol spray with, e.g. Freon 12 (Registered Trade Mark) as propellant, and preferably diluted with methylene chloride with or without naphtha.ALSO:An open-gear lubricant consists essentially, in per cent by weight, of creosote, 0.5-5.0; wool grease, 1.0-15; microcrystalline petroleum wax, 1.0-7.5; the balance being petroleum bitumen of pen (25 DEG  C.) 10-200 mm./10. The lubricant may be brushed hot or when fluxed, e.g. with coal tar naphtha.  It may be used as an aerosol spray with, e.g. "Freon 12" (Registered Trade Mark) as propellant, and preferably diluted with methylene chloride with or without naphtha.ALSO:Open gears are coated with a lubricant consisting essentially, in per cent by weight, of creosote, 0.5-5.0; wool grease, 1.0-15; microcrystalline petroleum wax, 1.0-7.5; the balance being petroleum bitumen of pen (25 DEG C) 10-200 mm/10.  The lubricant may be brushed hot or when fluxed e.g. with coal tar naphtha.  It may be used as an aerosol spray with, e.g. Freon 12 (Registered Trade Mark) as propellant, and preferably diluted with methylene chloride with or without naphtha.
Patent GB-1111271-A (GB)
Title: Improvements relating to electronic trigger circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/3565
Filed: 1964-06-16
Abstract: 1,111,271. Trigger circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 25 June, 1965 [16 June, 1964], No. 24922/64. Headings H3P and H3T. A trigger circuit comprises two valves or transistors coupled through a rectifier which becomes conducting only when signals applied to the first device exceed (or fall below) a predetermined level. In Fig. 3, resistors R1 and R8 are equal, as also R6 and R7, so that if the diode D is non-conducting the grid of V2 is always at a potential midway between the H.T. lines irrespective of the current through V1. If the input signal exceeds a certain level (or falls below if the diode is connected with reverse polarity) the cathodes are coupled together through the diode and the circuit forms a Schmitt trigger. The valves may be in the same envelope, or may be tetrodes or pentodes. The triggering level can be altered by varying the H.T. voltage or the resistance values provided that B1/R8 = R6/R7. Alternatively (Fig. 4, not shown), V2 can have separate adjustable grid bias and a capacitor included in the grid lead or two separate capacitors connected in series with R6 and R7 ; this arrangement is self-resetting or monostable. Fieldeffect transistors or metal-oxide-silicon transistors and a solid state diode may be used (Fig. 5, not shown). Ordinary transistors can be used if their low input impedance is not objectionable. The circuit can be used for stabilizing the pulse generators of Specification 1,053,656.
Patent GB-1049083-A (GB)
Title: Improvements in or relating to gelatin-containing compositions
IPC: G03C1/04
Filed: 1965-05-27
Abstract: A natural or synthetic polymer containing amino groups (e.g gelatine, casein, polyethylenimine, polyvinylamine, copolymers of vinylamine or Hofmann-degraded polyacrylamide) is reacted with a compound of the formula <FORM:1049083/C3/1> so as to introduce groups of the formula <FORM:1049083/C3/2> where M is a cation, e.g. sodium, potassium, lithium or ammonium. The treated polymers may be used to form photographic light-sensitive emulsions.
Patent GB-290496-A (GB)
Title: Improvements in steam heated vessels
IPC: A47J27/17
Filed: 1927-09-22
Abstract: 290,496. Berndorfer Metallwarenfabrik A. Krupp Akt.-Ges. June 30, 1927, [Convention date]. Boiling-pans.-A double walled cooking vessel &c. is provided within the jacket c with a single partition b having fine openings thus dividing the jacket into two separate compartments I, II. The heating steam is admitted to one I and is forced in thin jets through the openings l on to the surface a to be heated. Specification 255,364, [Class 64 (iii), Surface apparatus &c.], is referred to.
Patent GB-626324-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: H03C3/00
Filed: 1946-09-18
Abstract: 626,324. Radio navigation. SADIR-CARPENTIER. Sept. 18, 1946, No. 28058. Convention date, Dec. 30, 1943. [Class 40 (vii)] When two frequency - modulated signals having the same carrier frequency are applied to a receiver the more powerful signal substantially blots out the weaker signal and this property is utilized in the present invention which comprises an equi-signal beacon system in which the beacon O, Fig. 1, radiates two overlapping characteristics 1 and 2 at the same carrier frequency which are frequency modulated by different modulation frequencies f1 and f2 so that when an F.M. receiver is sufficiently remote from the axis O, B it will reproduce only the modulation tone due to the predominant signal but when the receiver is in the vicinity of the axis O, B the two signals will mutually interfere. In order to enable the bearing of the receiver to be determined within a sector B1 OB2 the axis OB is oscillated between the limits OB1 and OB2 so that the bearing is a function of the relative durations of the reception periods for the signals f1 and f2. The axis OB may be oscillated by mechanically swinging the aerial system, by continuously varying the amplitude of the radiation characteristic 1 between the limits 1a and 1b, or by varying the amplitudes of the two characteristics 1 and 2 in an inverse manner. Fig. 2 shows a beacon producing a bi-directional axis in which the two F.M. signals from 1 and 2 modulated with frequencies f1 and f2 respectively are applied in phase to a frame aerial (not shown), via stages 3, 9 and 4, 10 and leads 13, the two signals being also applied to an omnidirectional aerial (not shown) with phases of +#/2 and - #/2 via stages 3, 5 and 4, 6 and leads 17 to produce two reversed cardioid characteristics, the equi-signal axis produced by the intersection of the cardioids being perpendicular to the plane of the frame aerial, and this axis is oscillated by inversely varying the biasses on the stages 5 and 6 by means of the rotary potentiometer 19, 20 and 21. At the receiver the two frequencies f1 and f2 obtained on demodulation are rectified and applied to the respective coils of a differential instrument causing the pointer to oscillate ; alternatively the constants of the instrument coils may be such as to produce a steady resultant deflection.
Patent GB-629722-A (GB)
Title: Improvements in or relating to nails
IPC: F16B15/06
Filed: 1947-09-12
Abstract: 629,722. Nails. TOEMAN, C. Sept. 12, 1947, No. 25100. [Class 89 (ii)] The shanks of nails are provided with one or more helically arranged grooves the crosssectional area of which increases from the point to the head. The grooves 13 may be of V- section with constant included angle, or of curved cross-section, or of constant width. Specification 580,272 is referred to.
Patent GB-700648-A (GB)
Title: Improvements in electric cables
Inventor: HOLLINGSWORTH DOUGLAS TAFT
IPC: H01B7/12
Filed: 1951-10-26
Abstract: 700,648. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Oct. 24, 1952 [Oct. 26, 1951], No. 25114/51. Class 36 A buoyant cable comprises a core 1 made of cork granules bonded together and moulded to form a long cylinder, a layer 2 of helically-applied wires, and an outer covering 3 which may be built up from unvulcanized rubber tapes applied helically over the wires and then vulcanized. Specification 585,446 is referred to.
Patent GB-1218829-A (GB)
Title: Improvements in or relating to drums, reels or the like
Inventor: HILL JOHN
IPC: B65H75/50
Filed: 1968-05-25
Abstract: 1,218,829. Rope or cable drums. J. HILL. 19 May, 1969 [25 May, 1968], No. 25117/68. Heading B8H. A rope, wire or cable drum of the type wherein the end cheeks or flanges comprise annular components which have folds 39 extending radially or substantially so of the annulus between the inner and outer peripheries thereof is characterized in that the mouths of the folds 39 are wholly or substantially wholly closed at that part of the inner face of the cheek in the region of the inner periphery of the cheek. The mouths of the folds may be closed over their entire length as shown in Fig. 5, or only at the inner peripheral portion as shown in Fig. 13. In a method of forming the cheek, one or more blanks of strip form are fed between male and female die members to form the lateral folds in the strip or strips and at a selected stage in the manufacture the mouths of the folds are closed on the inner face of the cheek at that part which lies adjacent the inner periphery of the cheek. The closing may be effected by a lateral inward squeezing operation on the walls of folds at the mouths thereof. In one embodiment, the complementary faces of the die members are angled so that the strip as a whole becomes arcuate in two planes at right angles to each other. The mouths of the folds are closed and the strip assumes its original flat form but its longitudinal edges remain arcuate. A flat strip of metal is welded to the inner periphery of the cheek and the cheek attached to the barrel of a drum. In a further embodiment, the inner periphery of the cheek is at an angle relative to the longitudinal axis of the drum. In an alternative embodiment, the die members are arranged in such a way that the strip remains flat and straight and the mouths of the folds are closed at one end. A flat metal strip is welded to the periphery of the strip where the mouths of the folds are closed and the cheek strip is wound round a mandrel with the flat metal strip outermost. In this way the mouths of the folds close along their entire length. The outer peripheral edge of the cheek may be recessed, Fig. 23, and an enclosing cap 83 secured thereto.
Patent GB-704413-A (GB)
Title: Improvements in heading machines
Inventor: BULL MURRAY ALEXANDER
IPC: B21K1/44
Filed: 1951-10-27
Abstract: 704,413. Forging machines. G. K. N. GROUP SERVICES, Ltd. Oct. 21, 1952 [Oct. 27, 1951], No. 25166/51. Addition to 679,844. Class 83 (4) In a heading machine as disclosed in the parent Specification the torsion bar is disposed outside the body of the ram and is supported by or from the ram. The driving shaft 16 of the machine has an eccentric strap 19 for reciprocating the ram 14 in spaced bearing members 20. The front of the ram carries an oscillatable punch block 22 on which there are two punches 23 for operating on a workpiece which is fed through a passage 24 in the die 25. The lower part of a carrier 26 on the ram carries the rear end of the torsion bar 28 and a rocker member 29 which is slidable but not rotatable on an oscillating shaft 33 is supported in bearings 34 disposed below the ram in the bearing members 20. The rocker member has a quadrant gear 35 meshing with a quadrant gear 36 on the rear end of the torsion bar 28. The front end of the torsion bar which is supported in a bracket 37 depending from the ram, carries an arm 38 which is connected to a slide or slipper 39 working in a slot in a flange member 40 on the punch block. The punch block has a rearwardly extending shaft 41 journalled in bearings 42 in the ram and two abutment faces for engaging stops 43 on the ram and also locating holes for receiving a locating pin 45. The rear end of the oscillating shaft 33 carries an arm 46 pivoted to an actuating lever 47 provided at its other end with a yoke 49 which is slidable in a block 52 mounted about a cam shaft 18 driven from the shaft 16. Adjacent the yoke a cam 53 engages rollers 54 on the yoke. Rotation of the cam shaft oscillates the shaft 33 in timed relationship with the reciprocation of the ram thereby oscillating the punch block 22 through the torsion bar 28 to effect successive punching operations on the workpiece. For changing the machine from a twoblow into a single-blow machine a second ram of different profile from the cam 53 is provided on the cam shaft and the rollers 54 are mounted so that they can be transferred to the opposite side of the yoke so as to engage the second cam.