baber/WOPTO huggingface dataset:
Patent GB-588504-A (GB)
Title: A process for the production of new and useful derivatives of polyvinyl alcohols
IPC: C08F8/34
Filed: 1945-02-23
Abstract: Polyvinyl alcohol and derivatives thereof are esterified with mercapto-carboxylic acids.  Polyvinyl derivatives specified are partially or completely hydrolysed polyvinyl acetate, hydrolysed copolymers of vinyl acetate/ethylene, vinyl propionate/vinyl chloride, vinyl acetate/styrene, vinyl acetate/acrylonitrile, vinyl acetate/vinylidene chloride, partial acetals from acetaldehyde, formaldehyde, butyraldehyde, benzaldehyde and partial ketals from cyclohexanone, methyl cyclohexanone and acetophenone.  Thiol acids named are thioglycollic, 3 - mercaptopropionic, 5 - mercaptovaleric, 10 - mercaptodecanoic, 7 - mercaptoheptanoic, 4 - mercaptopimelic, beta-mercaptobutyric, alphamercaptoisobutyric, para - mercaptobenzoic, ortho - mercaptocinnamic, alpha - mercaptodiphenylacetic, alpha- or beta-mercaptohydrocinnamic, 2-mercaptonicotinic, ortho-mercaptophenylacetic, 4-mercaptophthalic, 3-mercaptoorthotoluic and thiomalic acids.  The reaction may be carried out in the presence of catalysts such as hydrochloric, sulphuric or p-toluenesulphonic acids and in media such as water, dioxane, chloroform, hydrocarbons and halogenated hydrocarbons. Plasticised polyvinyl alcohol may be treated with a mercapto acid in mass.  The esters formed can be isolated by addition of diluents such as ethanol, methanol, dioxane or acetone or the solution neutralized by pyridine, quinoline, triethylamine, triethanolamine, sodium carbonate or bicarbonate or sodium hydroxide.  These esters are insolubilized by oxidation, in air at ordinary temperatures, by baking or by use of hydrogen peroxide, chlorine or ozone.  Catalysts such as iodine, sodium, benzoyl or hydrogen peroxides, or cobalt naphthenate, lead, manganese, cobalt, iron, nickel and chromium salts of linoleic acid may be present.  Films, filaments and shaped articles can be made from the esters and then oxidized.  U.S.A. Specifications 2,052,210 and 2,137,584 are referred to.
Patent GB-769610-A (GB)
Title: Improvements in electric cables
Inventor: SMITH RONALD ERNEST
IPC: H01B7/08
Filed: 1955-02-17
Abstract: 769,610. Cables; cable clips; conduits; junction-boxes. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 16, 1956 [Feb. 17, 1955; June 23, 1955], Nos. 4785/55 and 18213/55. Classes 36 and 38 (1). A cable comprises two or more conductors 1, 2 maintained in spaced parallel relationship by clips 3 which are suitable for fixing to a supporting surface and may be slidable along the conductors. Each clip may be provided with a hole 4 for a nail or screw, and may be formed from a rectangular metal plate, the opposite sides 6 of which are bent upwardly and provided with external recesses 7 for resilient engagement with a cover 8 (Fig. 8). Tongues 9, 10 are pressed out of the plate and bent over conductors 1, 2, a fluid tongue 13 being arranged to engage a third conductor 12 if necessary. The clips may be of resilient insulating material (Fig. 10) comprising recesses 30 for gripping the conductors, or may comprise a base 32 on which the conductors are held by a corrugated metal strip 36 (Fig. 12) or by staples (Fig. 11, not shown). Alternatively the clip may be made from a flat plate 38 (Fig. 14) which is suitably slit to form tongues which are bent over the conductors to form ferrules 39. Cable lengths may be joined in a junction-box 17 (Fig. 9), the base 18 of which accommodates connectors 19 and an apertured boss 20 for a fixing screw. The cover 21 has recesses 22 to engage over the conductors and clips over the upturned edges of the base. AT-joint 23 comprises a base 24 with resilient sides 25 and connectors 26. Cover 21 clips over the sides 25. The covers 8, 21 and 27 may be dimensioned to provide a uniform unbroken cover over the installed cable and fittings.
Patent GB-525083-A (GB)
Title: Improvements in or relating to centrifugal hydro-extractors
IPC: B04B3/00
Filed: 1939-02-14
Abstract: 525,083. Centrifugal hydro extractors. BAILLY, A. Feb. 14, 1939, No. 4838. Addition to 500,458. [Class 23] The extractor described in the parent Specification which has a conical screen rotating at a slightly different speed from an internal drum with annular projections having staggered gaps for the passage of the solids, is modified by the provision of jets of steam or the like to detach particles deposited on the screen. The jets are produced by perforations in the tubes 2,9, 30, 31 fitted between successive projections near the trailing sides of the gaps 11, 12, 13. The steam may be supplied through a central channel 35 in the drum shaft. The tubes may be isolated by transverse plates 36, 37, 38 connecting successive projections, and transverse plates 23, 24, 25 may be placed at the leading sides of the gaps to remove particles from the inside of the screen 2. Solid bands 32, 33, 34 are made integral with the screen and are situated opposite the projections on the drum. The material is fed to the small end of the apparatus and liquid passes through the screen to the outlet while the solids pass along the screen through the gaps 11, 12, 13 to nozzles 27 and are discharged into the annular opening of the collector 16.
Patent GB-1422591-A (GB)
Title: Disposable diapers having a liquid-pervious topsheet disposable diapers having a liquid-pervious to
IPC: A61F13/551
Filed: 1973-01-31
Abstract: 1422591 Diapers PROCTER & GAMBLE CO 31 Jan 1973 [31 Jan 1972 7 Dec 1972] 4842/73 Heading A5R A disposable diaper 11e comprises an absorbent pad 15e and a superposed liquid-pervious faeces-receiving top sheet 17e secured along its periphery to the pad 15e, in which there is a line of weakness 18e in the top sheet 17e defining a central area for separate disposal with the faeces. The line of weakness 18e may be defined by perforations. Holes, about 1 to 2 inches in diameter are defined by cuts 19e and used for gripping the top sheet 17e for tearing it away from the diaper 11e. In an alternative embodiment, finger-grips are defined by cuts along opposite corners of a substantially rectangular central area about 11 x 9 to 13 inches in dimensions. The line of weakness may, in another embodiment, be defined by grain lines transverse to the length of the top sheet and cuts in the longitudinal direction.
Patent GB-120164-A (GB)
Title: Improvements relating to Reinforced Concrete Construction.
Inventor: SCHELFF ARTHUR WILLIAM CURRAN
IPC: E04C5/03
Filed: 1918-03-19
Abstract: 120,164. Schelff, A. W. C. March 19, 1918. Reinforced. concrete. -- Reinforcing-bars are provided with longitudinal grooves or flutings and are then twisted. The cross section of the bars is non- triangular and non-circular and a large number of shallow grooves may be adopted. The grooves and intermediate ribs may be of the same curvature as shown, or the radius of the grooves may be larger or smaller than that of the ribs.
Patent GB-902108-A (GB)
Title: Improvements relating to the coating of metal surfaces
Inventor: FREEMAN DENNIS BRIAN
IPC: B05D7/16
Filed: 1960-02-11
Abstract: In a process for coating a metal a layer of inorganic chromium containing material is first applied and then a solution containing a polyvinyl acetal and a phosphoric acid or an acid phosphate is used to form a second layer.  The solvent for the second layer may be n-butanol with the possible addition of xylene or solvent naphtha. Small amounts of other compatible resins may be added to this solution.  The first coating may be formed using a solution containing a chromate and a dichromate, with or without fluoride ions as activator.  The metal coated in the examples is aluminium. Specifications 869,395 and 899,599 are referred to.
Patent GB-908693-A (GB)
Title: Improvements in vehicle suspension systems and devices for use therein
Inventor: DAVIES RAYMOND JOHN
IPC: B60G21/067
Filed: 1958-02-15
Abstract: 908,693. Road vehicle pneumatic spring suspensions. DUNLOP RUBBER CO. Ltd. Feb. 4, 1959 [Feb. 15, 1958], No. 4998/58. Classes 108(2) and 108(3). Rolling-lobe type air springs 1, 4, associated respectively with the road wheels 1a, 4a, on the same side of the vehicle, are connected to respective intermediate air springs 16, 17, which are themselves interconnected at 27. Thus an increase in pressure in the spring 1 consequent upon an upward deflection of the road wheel 1a, is transmitted to the spring 16, and thence to the spring 17, and results in an increase in pressure in the air spring 4. The suspension of the vehicle therefore has a lower rate for pitching movements than for roll. The air springs 1, 4, 16, and 17 may alternatively be of bellows construction. The mean effective area of the springs 16, 17 varies with deflection of each spring as indicated by the dot dash lines a, a and b, b. The springs 16, 17 may alternatively be disposed apart from one another and interconnected hydraulically instead of by the connection 27.
Patent GB-197440-A (GB)
Title: Producing visual effects by means of sound
IPC: A61F11/00
Filed: 1922-02-22
Abstract: 197,440. Fournier d'Albe, E. E., and Warrick, F. W. Feb. 22, 1922. Drawings to Specification. Deaf and dumb persons, teaching and communicating with.-In a method of producing visual effects by means of sound, a globule of a highly reflecting liquid, such as mercury, rests on a flexible-sound receiving diaphragm and white or coloured light is reflected from its surface on to an opaque or translucent screen or into a telescope or microscope. The diaphragm closes the smaller end of a sound-receiving horn, and may have a transparent dust-proof cover. More than one globule may be used.
Patent GB-993389-A (GB)
Title: Process for the production of methyl isopropenyl ketone
IPC: C07C45/75
Filed: 1964-02-06
Abstract: Methyl isopropenyl ketone is prepared by reacting methyl ethyl ketone and formaldehyde in the liquid phase in the presence of an acidic cation exchange resin.  Suitable cation exchangers contain sulphonic, carboxylic, phosphonic or arsonic groups, and may be copolymers of unsaturated compounds (e.g. styrene, vinyl and acrylate compounds) or phenolic resins.  The reaction may be carried out in aqueous solution at 50 DEG  to 150 DEG  C. using a mole ratio of ketone to formaldehyde of from 1:1 to 10:1.  In the examples the resin used is sulphonated styrene/divinylbenzene copolymer.
Patent GB-751782-A (GB)
Title: Drive for a set of carding-engines
IPC: D01G15/36
Filed: 1954-02-23
Abstract: 751,782. Carding-engines. SPINNAU GES. Feb. 23, 1954 [Feb. 25, 1953], No. 5221/54. Class 120 (1). A drive for a set of carding- engines, containing single cards such as breaker, intermediate and condenser cards, comprises a driving shaft, the speed of which is variable infinitely or in steps arranged alongside individual cards and adapted to drive the feed and delivery elements thereof as well as mechanisms such as weighing and feeding devices, intermediate feeds, web squeezers or " Peralta " rollers, and tape condensers; the drive also comprises a shaft rotation of which may be controlled synchronously with the driving shaft. In the arrangement illustrated, the swifts T of cards A and B are each driven from a motor 1 through a speed drive transmission 5<SP>1</SP> which may be varied infinitely or in steps individually or in synchronism with other such transmissions 5<SP>1</SP>; a shaft W is driven by a variable speed drive transmission 3 operating in conjunction with the motor 1 through a protective clutch 2, or the drive may be derived from the shaft of the swift as represented by the dashed line 6. The shaft W, through bevel gears K and individually adjustable transmissions 5, which are variable infinitely or in steps, and disengaging clutches if required, drives the individual mechanisms of the card. The motors 1 of the set A, B operate synchronously by centralized control from a switch box 1a in order to vary the delivery speed of the set the transmissions 3 are synchronously adjusted by means of mechanical coupling therebetween or, as shown, with electric motors 4 controlled from a switchbox 4a; such variation produces a synchronous variation in the speed of interrelated devices such as the doffer comb and/or the rubbing motion so that uniformity of the web and/or sliver is maintained.
Patent GB-140190-A (GB)
Title: Improvements relating to caster substitutes for furniture and the like
IPC: A47B91/06
Filed: 1919-03-03
Abstract: 140,190. McLoughlin, J. March 3, 1919. Ferrules or tips.-Relates to castor substitutes comprising curved or dished highly polished plates 1, Fig. 1. The prongs 4, by which the plate is secured to an article of furniture &c., are formed arrow-headed at their free ends, the barbs 5 being flexible, so that after the prongs have been driven into the wood, the barbs will have a tendency to expand. In order that the plate may be replaceable, it may be formed with a screwthreaded rim 3 which engages an internally threaded ring 2 carrying the prongs. If one prong only is required, it may be stamped out of the metal of a bridge-piece 7. Fig. 8. Instead of being held by screw-threads, the parts may be frictionally held together, being slightly bevelled so as to fit accurately. The plate may be removed by a tool with parts entering holes 6.
Patent GB-378802-A (GB)
Title: An improved flux for welding iron or steel
IPC: B23K35/36
Filed: 1932-02-22
Abstract: A flux for use in welding iron or steel is prepared by melting together fluorspar and borax, preferably 25 per cent fluorspar and 75 per cent borax, and allowing the melt to solidify.  The flux may be used as a powder or compressed into cakes.
Patent GB-252453-A (GB)
Title: Improvements in automatic or semi-automatic telephone systems
IPC: H04Q3/62
Filed: 1925-02-26
Abstract: 252,453. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), Lowry, L. P., and Gould, J. R. Feb. 26, 1925. Automatic and semi-automatic exchange systems.-A double wiper simultaneous hunting selector comprises two test relays and two switching relays so arranged that if the test relay of one set of brushes finds a line busy it shortcircuits the corresponding switching relay and prepares the circuit of the other switching relay. The invention is described with reference to a connector serving large groups of private branch exchange lines. Line relay A, and release relay B pull up and the digit is repeated to vertical magnet V. Series relay C on pulling up energizes the test relay GA, which locks up and energizes the test relay GB, which also locks up. Springs N change over, and on the relapse of relay C rotary magnet R pulls up over GB5. At the end of the stroke, relay GA is released and releases relay GB, whereupon magnet R is released and connects relay GA to the test wiper P1. (1) If both trunks are busy, both switching relays HA, HB, are short circuited, relay GA pulls up to the grounded wiper P1 and energizes relay GB over the other test wiper, and the magnet R pulls up causing a further step and the relapse of relays GA, GB, whereupon the next pair is tested. (2) If the upper line only is busy, relay GA is energized as before on the relapse of magnet R and short-circuits relay HA, and relay HB which is no longer short-circuited, pulls up in series with relay GB (whch does not pull up), disconnects relay HA, locks itself up, grounds the test wiper P2 over the lower winding of relay H. and connects up the lower pair of talking wipers. Relay H pulls up and releases relay GA which disconnects wiper P1. (3) If the upper line is idle relay HA pulls up in series with relay GA. connects up the upper talking wipers, and prevents the energization of relay HB whether the lower line is idle or not. Control of ringing current. Relay H pulls up somewhat sluggishly over the cut-off relay. The armature 5 is attracted first and completes a holding circuit, whereupon the other armatures pull up, direct ground is connected to the test wiper and ringing current from RG is sent out over relay F. When the called party replies, relay F pulls up in two steps and completes the connection to the back bridge relay D. Release. The calling party can release the connection at any stage. The relapse of relay A is followed by that of relays B, HA (or HB), F and H, and the release magnet Z is energized in series with a common supervisory relay for giving an alarm if a switch fails to restore. Busy signalling-statistical metering. If all trunks are busy, the wipers move to 11th terminals, the springs shown on the left of the figure change over, and busy tone and flash are sent over BBF. C6, YA to the line L+. A statistical meter is operated over relay GA and wiper P1. Contact GB9 is provided to maintain the circuit of the rotary magnet after the change over of the 11th terminal springs.
Patent GB-700318-A (GB)
Title: Improvements in and relating to heaters for operation with liquid fuel
Inventor: PLATT STANLEY
IPC: F23D11/44
Filed: 1951-03-05
Abstract: 700,318. Vapour burners. BRANKER, Ltd., and RICH, W. March 3, 1952 [March 5,1951 ; Nov. 17, 1951], Nos. 5334/51 and 27034/51. Class 75 (1)]. In a heater of the type in which vaporized fuel from a jet 4 mixes with air in a space 11 between the jet and a duct 6 conveying the mixture to one or more burners 9, a casing 12 encloses the space 11 between the jet and the duct and is provided with an aperture 14 for the drainage of unvaporized fuel entering the casing from the jet and with at least one further aperture 13 for the entry of combustion air, the apertures being sufficiently small to prevent combustion within the casing. The duct 6 discharges into a manifold 8 on which the burners are mounted In a construction modified to enable any liquid fuel in the manifold to drain into the casing, the bottom wall of the manifold is at a higher level than the bottom wall of the casing and inclines downwardly towards the casing and a small tube with a stopped end is fixed in a hole in the wall between the casing and the manifold. The tube projects into the casing and has a small hole on its underside for the passage of the liquid fuel. The jet 4 is detachably mounted on the end of a vaporizing tube 3 heated by the burners. The fuel flow is controlled by a needle 17 mounted on the end of a sliding rod 18 extending through gland rings 21 and a packing gland 22 detachably connected. to the end of the vaporizing tube 3. An enlargement 23 on the sliding rod prevents inadvertent removal of the rod and needle with the gland in position. A radiator element in the form of a ceramic bar may be arranged over each burner.
Patent GB-725324-A (GB)
Title: Improvements in and relating to road vehicle tipping bodies, particularly for refusevehicles
IPC: B60P1/16
Filed: 1953-02-26
Abstract: 725,324. Refuse vehicles. GRAAFF, P. DE. Feb. 26, 1953 [Aug. 7, 1952], No. 6377/63. Class 108 (1). A refuse collecting road vehicle has a body which may be hydraulically tipped either about an axis 3 to fill its main container 1 from a hopper 2, or about an axis 4 when discharging, the connecting hole between the hopper and the container being covered by a flap 6 hinged at 7, Fig. 2. When the body is tipped to fill the container, the flap 6 is moved into the hopper to the dotted position by a linkwork actuated by a hydraulic cylinder 12 fed from the main pressure system, thus allowing the container to be completely filled. When the body is returned to normal position the cylinder 12 is exhausted and a spring 16 acts on the flap to return it to the full line position where it slightly compresses the refuse. The flap may also be closed hydraulically, or may be mechanically operated.
Patent GB-978616-A (GB)
Title: Improvements in or relating to apparatus for drilling pipes
Inventor: BATES FREDERICK
IPC: F16L41/06
Filed: 1962-02-10
Abstract: 978,616. Drilling pipes. E. PASS & CO. Ltd. Feb. 11, 1963 [Feb. 10, 1962], No. 5475/62. Heading B3C.  A device for drilling a pipe comprises a saddle 11 clamped to pipe 12 by means 14, a tubular body 16 extending from the saddle, a clamp 17 pivoted on the body, and a drill socket 19 having a squared end 21, and grooves 24 carrying sealing rings 25.
Patent GB-144364-A (GB)
Title: A new or improved fastening device
IPC: A44B17/00
Filed: 1919-03-06
Abstract: 144,364. West, C. March 6, 1919. Stud-and-slot fastenings.-Relates to fastening- devices for dresses &c. of the type formed in two parts, one of which has a raised tongue or bridge adapted to engage under turned-up edges on the other part. In one form of the device, shown in Figs. 1, 3, the bridge b on the part a has an enlarged central portion b<1>, which engages under U-shaped turned-over edges g<1> stamped up or otherwise raised near the centre of the other part d. Additional means may be provided to prevent accidental separation of the parts, such as a bead f<1> on the tongue portion h between the raised edges g<1> of the one part d adapted to snap into an aperture c in the bridge portion of the other part a. In the modification shown in Figs. 6, 8, the bridge portion b is formed narrow at one end to enable it to pass under the parallel turned-over edges k. Figs. 11, 13, show a further modification, wherein the part a has a tongue p with enlargement p<1> adapted to take under the U-shaped turned-over edge r.
Patent GB-575563-A (GB)
Title: Improvements in collapsible tubes
IPC: B65D35/38
Filed: 1944-03-27
Abstract: 575,563. Collapsable tubes; powder distributors. BETTS & CO., Ltd., and MENHENEOTT, F. M. March 27, 1944, No. 5606. [Classes 18 and 66] A collapsable tube 1 is made of a resilient cellulose derivative, synthetic or natural resin or gum, e.g., shellac, or a gelatinous compound, for use as a powder blower, a perforated disc 5 nozzle being covered by a screw or push-on cap 4, or by a second perforated disc which can be turned so that the holes of the two discs register, or do not register.
Patent GB-1418403-A (GB)
Title: Plasma display device and driving circuit
IPC: G09G3/288
Filed: 1973-02-05
Abstract: 1418403 Matrix displays and circuits therefor NIPPON ELECTRIC CO Ltd 5 Feb 1973 [4 Feb 1972] 5623/73 Heading G5C Display apparatus comprises a gas discharge display/memory panel with two conductor arrays insulated from the gas and means for applying pulses of alternating potential between a selected pair of electrodes with a peak to peak amplitude 2 to 4 times the firing potential and means for applying a D.C. bias to one of the electrodes to displace the mean amplitude from zero. This considerably reduces the delay in starting a discharge. The circuitry for a panel with crossed conductor arrays includes a D.C. source 71 and a source of negative going pulses #. Every fourth row conductor 73 of the panel is interconnected to form 3 groups and pulse trains are supplied cyclically to these groups by applying control pulses T 1 , T 2  ... to transistors 111, 112 .... Pulses are applied to selected column conductors 74 when a pulse train is supplied to a corresponding row conductor by applying pulses t 1 , t 2  ... to transistors 91, 92 ... The D.C. bias is applied on a conductor 75 and superimposed on the column conductors by circuits 105 each comprising a diode and capacitor. In other embodiments the D.C. bias is applied to row conductors. The panel may comprise segment electrodes.
Patent GB-897964-A (GB)
Title: Improvements in or relating to the reduction of crosstalk in telecommunication systems
Inventor: CAMERON HECTOR FRANCIS LOVETT
IPC: H04B3/32
Filed: 1959-02-18
Abstract: 897,964. Preventing inductive disturbances. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Feb. 8, 1960 [Feb. 18, 1959], No. 5637/59. Class 40 (4). In a coaxial cable for use in telecommunication systems, cross-talk is substantially eliminated by the use of one or more sleeves or collars of ferrite material threaded over the cable. It is stated that the impedance to longitudinal currents on the outer conductor is directly proportional to the length and permeability of the ferrite material and that the rate of increase of this impedance decreases with increasing thickness. Also the rate of improvement of cross-talk coupling in decibels decreases as the number of sleeves is increased so that a minimum number of sleeves consistent with a desired reduction in coupling is chosen, this number being practically independent of the length of the cable.