baber/WOPTO huggingface dataset:
Patent GB-645057-A (GB)
Title: Improvements in or relating to base surfaces of articles, non-fibrous flexible filmsforming said base surfaces and pressure-sensitive adhesive tapes employing said basesurfaces
IPC: C09J7/38
Filed: 1947-06-12
Abstract: Polyvinyl carbamates having more than five carbon atoms in the alkyl groups attached to the carbamate side chains are coated on to material and used as a removable line to prevent adherent rubber surfaces firmly adhering to themselves or another surface. The polyvinyl carbamates are prepared by reacting polyvinyl alcohol or a hydrolysed vinyl acetateethylene copolymer with an isocyanate such as heptyl, octyl, decyl, dodecyl, tetradecyl and octadecyl isocyanates. Cross linking of a polyvinyl carbamate having residual hydroxy groups may be effected by reacting with a diisocyanate.  Solutions of the carbamate in benzene or toluene may be used to coat paper, cellulose derivatives and polyvinyl resins.  The coating may comprise up to 95 per cent of ethyl cellulose, polyvinyl acetate or butyral, rubber latex, ester gum, butadiene-styrene and ethyl-butyl acrylate-ethyl acrylate copolymers, terpene resin and hydrogenated indene-coumarone resin.
Patent GB-1435848-A (GB)
Title: Method of recovering ethylene oxide
IPC: C07D301/32
Filed: 1974-04-08
Abstract: 1435848 Recovery of ethylene oxide; ethylene glycol NIPPON SHOKUBAI KAGAKU KOGYO CO Ltd 8 April 1974 15543/74 Heading C2C Ethylene oxide is recovered from a gaseous reaction product obtained by oxidizing ethylene in the vapour phase with molecular O 2  in the presence of a silver-containing catalyst by a method which comprises: (a) passing the gaseous reaction product to an absorption column maintained at a pressure of 2 to 40 kg./cm.<SP>2</SP>; (b) counter-currently contacting the gaseous reaction product in the absorption column with an aqueous aborbent having a pH of 3 to 12 and containing 0À1 to 40% by wt. of and 0À5 to 1000 p.p.m. of a defoaming agent, to form an aqueous ethylene oxide solution; (c) passing the aqueous ethylene oxide solution formed in step (b) to a stripping column; (d) stripping and recovering ethylene oxide from the aqueous ethylene oxide solution; and (e) recycling at least part of the stripped aqueous solution remaining after step (d) to the absorption column. Ethylene glycol may be recovered by removing part of the stripped aqueous solution remaining after step (d) and recovering it therefrom. Specified defoaming agents are organopolysiloxanes and polyalkylene glycols of greater hydrophobicity than ethylene glycol. The pH of aqueous absorbent may be maintained above 3 by the addition of an aqueous solution of KOH, NaOH or Na 2 CO 2  to the recycled stripped aqueous solution. An apparatus is described for carrying out the process.
Patent GB-1294429-A (GB)
Title: A non-magnetisable steel
IPC: C22C38/04
Filed: 1971-05-18
Abstract: 1294429 Steel DEUTSCHE EDELSTAHLWERKE A G 18 May 1971 [5 June 1970] 15553/71 Heading C7A:- The steel may be heat-treated at 1000c for ¢ hour and quenched in water. It finds use in marine construction.
Patent GB-991106-A (GB)
Title: Improvements relating to paper-making machines
Inventor: CHAMPKINS DENIS LESLIE
IPC: D21F1/52
Filed: 1964-04-15
Abstract: In a paper machine having a plurality of juxtaposed suction boxes the upper perforated surfaces of some of the boxes are formed of metal impregnated carbon while the surface of at least the final suction box (reckoned in the direction of travel of the wire) is formed of hard rubber.  Preferably the total surface area of carbon is at least twice that of rubber and precedes it in the direction of travel of the wire.  The perforations in the suction box covers are preferably made of smaller diameter towards the edges of the covers than at the centres.  The rubber may be impregnated with a lubricant such as graphite.  Specification 770,832 is referred to.
Patent GB-801892-A (GB)
Title: Improvements in or relating to land mines
IPC: F42C7/04
Filed: 1956-05-18
Abstract: 801,892. Land mines. POUDRERIES REUNIES DE BELGIQUE S.A. May 18, 1956 [May 20, 1955], No. 15590/56. Class. 9(2) A booby-trap for an anti-tank mine comprises a fuze similar to those described in Specifications 801,889 and 801,891, which is arranged at the base of an anti-tank mine described in Specification 801,890. On the fuze cover 10 are pivoted two overlapping plates 1, 1<SP>1</SP> held in the collapsed position by a bolt 11 engaged by bushing 12 through which passes a cotter pin 2 wedged by a member 13. After laying the mine, the pin 2 is withdrawn by means of a cord 2a to leave the trap armed. The member 3, which holds the fuze strikers 4 away from the primer 5, extends through the casing and is held against the plate 1 by a spring 14. A detonator 6 is mounted on the part 10a of the casing and is covered by a cap 21 which fits a recess in the mine, Fig. 3. If the mine is lifted, plates 1, 1<SP>1</SP> pivot outwards allowing member 3 to move down wards and so bring apertures 8 into line with the strikers and primer 5, whereupon the strikers actuate the primer to fire the detonator 6 and explode the mine. One pivoted plate may be used insteady of two as shown.
Patent GB-122662-A (GB)
Title: Improvements in Picking Mechanism for Looms.
Inventor: NEWTON-SMITH ARTHUR
IPC: D03D49/36
Filed: 1917-10-26
Abstract: 122,662. Smith, A. Newton-. Oct. 26, 1917. Shuttle boxes; pickers.-The picker is mounted on a pair of parallel spindles, the ends of one or both of which are carried by means angularly adjustable on the spindle stud and box end. In one form, a spindle 3 is engaged by the spring 4 in the usual manner, the other spindle 5 being held between disks 7 on the spindle 3 and one disk being adjustably secured by means of a wing-nut 9 and a bolt 8 engaging a slot in the disk. In a modification, both spindles are held in engagement with rotatable disks having projections entering holes in the box end and the spindle stud. The projection in the spindle stud is threaded and secured by a nut, the projection in the box end being engaged by the spring or being threaded and secured by nuts on each side of the box end. The picking-strap may be secured around a tube 17 surrounding one or both of the spindles and secured to the body 6 of the picker.
Patent GB-893756-A (GB)
Title: Improvements relating to conveyors
Inventor: FRANKLIN DONALD PETER
IPC: B65G23/00
Filed: 1957-05-17
Abstract: 893,756. Conveyer systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. July 31, 1958 [May 17, 1957], No. 15772/57. Classes 78 (1) and 104 (2). In a conveyer for conveying discrete articles and comprising an indexing section between two service sections the speed of one of the service sections is controlled in relation to the number of articles in the indexing section. In the arrangement shown the conveyer comprises a main section 1 leading to indexing sections 5, 6 and to travel sections 2, 3. The conveyer chains of the travel sections 2, 3 are driven by means 8, 9 each provided with two input leads 10, 11 and 12, 13. When a signal is applied to lead 10 the chain in section 2 is driven at the higher of two predetermined speeds and at a lower speed when a signal is applied to the lead 11. The signals to the leads 10, 11 are under the control of a counter 14 operated by two sensing devices 16, 17 in such a way that each trolley 4 entering section 5 increases the count by one and on leaving the sections decreases the count by one registered on the counter 14. The counter 14 passes a signal to increase or decrease the speed of the driving means 8 depending on the number of trolleys 4 in section 5 being above or below a fixed datum. The counter 15, associated with the indexing section 6, is operated by sensing-device 18, 19 in a similar manner. Specification 889,419 is referred to.
Patent GB-930825-A (GB)
Title: Improvements in or relating to apparatus for use in textile drafting
IPC: D01H5/50
Filed: 1960-05-04
Abstract: 930,825. Drafting mechanism. G. FUSAROLI. May 4, 1960 [May 20, 1959], No. 15776/60. Class 120 (2). In a textile drafting mechanism a pair of rollers 7, 8 are weighted on the end portions 13, 13<SP>1</SP> of their shafts by members 24 pivotably mounted intermediate the rollers, the weighting being applied to the members at their pivot points. In the form shown the top rollers of a drafting head are carried by an inverted U- shaped case 1 rotatable about and lockable on a shaft 2. The main rollers 6, 10 are mounted in yokes 16, 15 carried by a U-shaped bar 14 which slides in the case 1 and is weighted by springs 17, 18 acting between the case and adjustable screw supports 19, 20, the yoke 16 being movable along beam 14 to vary the length of the drafting zone. The beam 14 is slotted at 21a to receive a slide member 21 which carries a yoke 22 having longitudinal arms 22a, 22b; elongated slots 50, 51 in these arms allow pairs of plates e.g. 52, 53 to be adjustably mounted thereon, the inner plate of each pair, e.g. 53, being forked to receive a flattened shaft end 13 of a control roller 7 or 8. A spring 23 acting between case 1 and slide 21 weights the rollers 7, 8, the pressure being transmitted from bracket 22 to the rollers shafts by the members 24. A further longitudinally adjustable roller 9 is carried by arms 30 pivoted at one end to the yoke 22 and downwardly urged at the other end by springs 32 carried by the yoke 15. Alternatively, as shown in Fig. 9, arms 30 are replaced by arms 36, independent of yoke 22, and weighted by eccentric wedges 37 at the upper ends of the guideways in the yoke 15. In a further form arms 30 are replaced by arms pivoted, and weighted by springs mounted on yoke 15. The roller cots may be leather, plastic, natural or synthetic rubber while those of the control rollers are preferably of elastic material which is soft or spongy; the cots are preferably barrel shaped.
Patent GB-841335-A (GB)
Title: Cross-polarised antenna arrangement
IPC: H01Q25/00
Filed: 1958-05-16
Abstract: 841,335. Aerials; duplex radio signalling. STANDARD TELEPHONES & CABLES Ltd. May 16, 1958 [May 17, 1957], No. 15797/58. Classes 40(5) and 40(7). In order that the two stations of a duplex radio system may have identical aerial arrangements each station is provided with a trans mitting aerial capable o: radiating plane polar ized waves with their plane of polarization a approximately 45 de grees to the horizonta and a receiving aeria for the reception of waves polarized at right angles to those transmitted. The aerials are mutually perpendicular probes at 45 degrees to the horizontal arranged in a single square horn 4 directed into paraboloidal reflector 3. The horn is fed from the transmitter by a waveguide 5 coupled to the horn by probe 7. A probe 8 further back in the horn couples it to waveguide 6 leading to the receiver. Between the probes are placed wires 9 to time the probe 7.
Patent GB-545907-A (GB)
Title: Improvements in brakes
IPC: F16D65/58
Filed: 1940-10-29
Abstract: 545,907. Drum brakes. BENDIX AVIATION CORPORATION. Oct. 29, 1940, No. 15836. Convention date, Nov. 24, 1939. [Class 103 (i)] In a brake of the kind.in which the friction means such as a pair of linked shoes anchors at one end or the other according to the direction of rotation of the drum, the hydraulic brake application cylinder is adapted to have a dash-pot action to cushion the shock of a change of anchorage and automatic adjustment means is provided comprising a member carried by the friction means and movable relatively thereto by contact with the drum. A pair of shoes 14, 16 pivotally connected by a member 30 and arranged to anchor on a post 18 are applied by a hydraulic cylinder 50 containing a baffle 58 provided with grooves 60, 62 adjacent the bleeder and inlet passages 66, 64. A light pressure is maintained in the pipe lines when the brake is released and springs 70 are compressed between the pistons 52 and the baffle so that the piston rods 54 engage the shoes irrespective of the setting of the shoe adjustment means. The release spring 40 attached to shoe 16 which anchors during forward braking is stronger than the spring 42 attached to shoe 14. Thus in forward braking only the shoes 14 leaves the anchor but in reverse braking this shoe initially leaves the anchor but on application is returned by the frictional action of the drum and this movement is cushioned by the liquid being forced through the restricted passages 60, 62. The shoe webs are provided with part cylindrical recesses for engagement with the. anchor and with extensions 20 to position the shoe ends in a radial direction. Alternative mechanical means for applying the brake comprises a lever 80 pivoted to the shoe 16, connected to shoe 14 by a link 82 and operated by a cable 86. An automatic adjuster for the shoes comprises a block 90 of hard material slidably mounted on the shoe web between guides 108 and extending through the friction lining 22 so as to be flush with the surface thereof. A lever 100 has a disc 98 secured thereto by which it is pivotally mounted on the shoe web and is frictionally clamped to the web by a spring 102. The lever normally contacts a stop 110 mounted on the back plate and thus determines the release position of the shoe. As the lining wears the block 90 is moved inwardly relatively to the shoe and adjusts the lever by engagement of a cam slot 92 in the block with a pin 96 projecting from the part 98 of the lever. The stop 110 is mounted on the back plate by an eccentric pin 114 for manual setting. The member 30 comprises parts secured together for manual adjustment. Specification 535,131 is referred to.
Patent GB-982269-A (GB)
Title: Production of highly polymerised quarternary ammonium compounds
Inventor: KESSLER HANS JUERGEN
IPC: D21H17/37
Filed: 1963-04-23
Abstract: Highly polymerized quaternary ammonium compounds are produced by quaternizing condensation products of acrylamide or methacrylamide with formaldehyde and secondary amines having the general formula <FORM:0982269/C3/1> in which R represents hydrogen or methyl and R1 and R2 represent aliphatic, cycloaliphatic, araliphatic or aromatic radicals, which may be identical or different, which may bear further substituents or may be combined to form a ring system and copolymerizing the products with other ethylenically unsaturated polymerizable compounds in the presence of conventional polymerization catalysts in organic solvents in which the monomers are soluble and the copolymers are insoluble and are precipitated during the polymerization, the process differing from that of the parent Specification only in that tertiary butanol is used as solvent.
Patent GB-1491090-A (GB)
Title: Manufacture of stabilised hardenable calcium sulphate
IPC: C04B11/00
Filed: 1975-04-17
Abstract: 1491090 Stabilizing calcium sulphate; phosphoric acid KNAUF WESTDEUTSCHE GIPSWERKE GEBR 17 April 1975 [5 June 1974] 15918/75 Heading ClA Calcium sulphate hemihydrate, prepared from crude phosphate and sulphuric acid, is stabilized by washing with aqueous wash liquid containing an aluminium fluoride of formula MeAlF 4 , Me 2 AlF 5 , Me 5 Al 3 F 14  or AlF 3 .nH 2 O where Me is an alkali metal, ammonium or thallium (I) ion and n is an integer from 1-9. The aluminium fluorides are suitably used in up to 1À0% by weight with respect to calcium sulphate, and are suitably dissolved in hot water, or mineral acids of less than 1% concentration. Prolonged stability of calcium sulphate may be achieved by adjusting the pH of the "mash" of water and hardenable calcium sulphate to 4-5, by adding soluble compounds having an "alkalineaction". The calcium sulphate separated from the reaction mixture of wet-process phosphoric acid production may be washed in a counter-current wash with water or aqueous mineral acid which may be recycled, and the condensed and complex aluminium fluorides are preferably added with the wash liquid to the last stage of the counter-current wash.
Patent GB-347916-A (GB)
Title: Improvements in or relating to oxidizable organic compounds
IPC: C08K5/00
Filed: 1930-05-23
Abstract: The oxidizing of transformer oils and unsaturated hydrocarbons is reduced by incorporating therewith a reaction product of a naphthol and piperidine having the structure <FORM:0347916/III/1> in which R is a naphthol group.  As an example of the preparation of the compound molecular proportions of a  naphthol and piperidine are subjected to heat and pressure in an autoclave. The product is a viscous oil and is washed with acid and alkali and distilled.  Other naphthols, e.g. b -naphthol and a -chlor-naphthol may be used.ALSO:A compound for inhibiting the oxidation of readily oxidizable organic compounds is prepared by condensing a naphthol and piperidine.  The product has the structure <FORM:0347916/IV/1> in which R is a naphthyl group.  As an example of the preparation of the compound, a -naphthol and piperidine in molecular proportions are subjected to heat and pressure in an autoclave. The product is a viscous oil, and is washed with acid and alkali and distilled.  Other naphthols may be used of of which b -naphthol and a -chlor-naphthol are mentioned.ALSO:Oxidizable organic compounds such as india-rubber, transformer oils and similar unsaturated hydrocarbons are preserved by incorporating therewith a reaction product, of a naphthol and piperidine, having the structure <FORM:0347916/V/1> in which R is a naphthol group.  As an example of the preparation of the compound molecular proportions of a -naphthol and piperidine are subjected to heat and pressure in an autoclave. The product is a viscous oil and is washed with acid and alkali and distilled.  Other naphthols may be used, of which b -naphthol, and a -chlor-naphthol are mentioned.
Patent GB-1446506-A (GB)
Title: Method and apparatus for the manufacture of carbon black
IPC: C09C1/50
Filed: 1974-04-10
Abstract: 1446506 Carbon black production CONTINENTAL CARBON CO 10 April 1974 [16 April 1973 12 Sept 1973 29 Nov 1973] 15964/74 Heading C1A [Also in Division F4] Apparatus for the production of carbon black comprises (Fig. 2) a first (inner) pipe 5 and second (outer) concentric pipe 7 defining a first annulus 2 for the passage of atomizing air; (2) means for introducing air into said annulus; (3) means 9 associated with the first annulus for imparting a strong swirling motion to said atomizing air; (4) first (inner) and second (outer) annular concentric rings 11a and 11b fixed to the downstream ends of said first and second concentric pipes, respectively, said rings defining a converging annulus which directs the airstream in a generally hollow, frusto-conical, divergent pattern; (5) a third pipe 19 concentrically disposed within said first pipe, defining a second annulus, the downstream end of said third pipe being affixed to said inner ring; (6) a plurality of holes 18a, in said inner ring, leading from said second annulus into said converging annulus at points downstream from said convergence; (7) means for introducing fuel oil to said holes; (8) a tubular carbon black feedstock assembly (Fig. 1) inserted through the centre of the third pipe.
Patent GB-935471-A (GB)
Title: Improvements relating to bobbins for fishing nets
Inventor: TURNER IAN WYLIE
IPC: A01K75/06
Filed: 1959-05-09
Abstract: 935,471. Trawl net bobbins. DUNLOP RUBBER CO. Ltd. April 11, 1960 [May 9, 1959], No. 15992/59. Class 48. A ground rope bobbin comprises two cupshaped members 1, 2 made of rubber and secured together with their edges spaced apart. The edges have flanges 3, 4 and bolts 7 are passed through holes in the flanges and through tubular spacers 8. A tube 9 extends through the bobbin and is secured at its ends to apertures in the cups 1, 2 by bolts passing through aligned apertures in radial flanges 10, 11 on the ends of the tube and in annular clamping plates 12, 13.
Patent GB-872883-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/02
Filed: 1960-05-06
Abstract: 872,883. Transformers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 6, 1960 [May 9, 1959], No. 16124/60. Class 38 (2). The wound strip cores 1 and windings 3 of a transformer are partly embedded in a cast resin block 7 provided with supporting surfaces 11, the small air gaps 5 formed where the cores have been divided, being inside the block 7. The transformer can be mounted on a carrierplate by screws passing through holes 13.
Patent GB-362397-A (GB)
Title: Mixing machine for concrete and the like
IPC: B28C5/18
Filed: 1930-05-26
Abstract: 362,397. Concrete &c. mixers. PIISPANEN, V., 17, Runeberginkatu, Helsinki, Finland. May 26, 1930, No. 16141. Convention date, May 28, 1929. Void [Published under Sect. 91 of the Acts]. [Class 86.] A concrete-mixer comprises a rotary conical drum 1 mounted on the end of a bent shaft 2 which can be rocked in its bearings 6, 7 to tilt the container bv a hand-lever 8. The drum is rotated by a crank 9 and bevel gear 3, 4.
Patent GB-145262-A (GB)
Title: Improved spring suspension for motor vehicles
IPC: B60G11/02
Filed: 1919-06-27
Abstract: 145,262. Fornaca, G. June 27, 1919. Springs, arrangement of.-In a spring suspension comprising longitudinal cantilever springs pivoted centrally to the chassis and connected at their ends by shackles to the chassis and driving axle respectively, a semi-elliptic transverse spring 6 is fixed centrally at 7 to the driving-axle and is connected at its ends to the chassis 3 by shackles 9. The spring 6 may be arranged to damp upward or downward shocks, or both.
Patent GB-988436-A (GB)
Title: Formers for electric heating cables
IPC: F24D13/02
Filed: 1963-04-25
Abstract: 988,436. Mounting heating cables. L. TIBBY. Feb. 27, 1964 [April 25, 1963], No. 16253/63. Heading H5H. A former for holding a space-heating cable in a zig-zag form comprises a slotted strip having a round bead along the slotted edge, and an # sectioned strip 13 which can be forced over the bead to retain the cable in the slots. Modifications: (i) a separate "clip piece " may be used to close each slot, Figs. 4, 5 (not shown); (ii) the former strip may have a right-angled flange, Fig. 6 (not shown); (iii) the former may be T-shaped instead of having a round bead, Fig. 7 (not shown); (iv) the former may have keyhole-shaped slots in both edges, into which the cable is introduced as shown in Fig. 8, and each edge may be closed by a separate piece as in Fig. 1, or a C-shaped member may be used to close both edges as in Fig. 9 (not shown).
Patent GB-594111-A (GB)
Title: Spanners
IPC: B25B15/00
Filed: 1945-06-26
Abstract: 594,111. Inserted spanners. WARR, E. W., BUTLER, D. D., and HYDLEMAN & CO., Ltd., L. J. June 26, 1945, No. 16312. [Class 61 (iii)] A lever for increasing the torque that can be applied to a nut, consists of a bar, at the end of which are seven nuts in double pyramid formation. In use, the correctly-sized nut is inserted in the free end of a double-ended spanner, the other end of the spanner being in position over the nut to be turned.
Patent GB-260519-A (GB)
Title: Improvements in or relating to the safety of baby carriages, with reference to their tipping
IPC: B62B9/24
Filed: 1926-06-29
Abstract: 260,519. Moffat, G., and Ellis, A. B. June 29, 1926. No Patent granted (Sealing fee not paid). Rest-bars and supports.-In a safety-device for preventing endwise tipping of perambulators of the kind comprising a support which is pivotally mounted on a transverse shaft or bar so that it can be arranged either in a vertical or substantially vertical operative position or in an horizontal inoperative position, the support is in the form of a stay B provided with a clamping nut F and either slides transversely on a twisted bar A, Fig. 1, of rectangular cross-section so as automatically to turn into a vertical position at the centre of the bar A, or is provided with a square aperture so as to engage in the two positions specified, a squared central part M, Fig. 6, of the bar A, the remainder of which is of circular cross-section. The bar A may be built up of two or more parts so that its length may be varied in accordance with the width between the side springs to which it is attached, and the length of the stay B may also be adjustable.