baber/WOPTO huggingface dataset:
Patent GB-1529248-A (GB)
Title: Polymers of vinyl and/or vinylidene halides
IPC: C08F14/00
Filed: 1976-06-30
Abstract: 1529248 Aqueous phase polymerization of vinyl halides and/or vinylidene halides B F GOODRICH CO 30 June 1976 [1 July 1975] 27161/76 Heading C3P Vinyl halides and/or vinylidene halides are homo- or copolymerized, optionally with other monomers containing the CH 2  = C< or groups, by (1) premixing the monomer(s) with a suitable initiator, a C 14-20  saturated aliphatic alcohol, and an ammonium salt of a C 8-20  saturated fatty acid in an aqueous medium, (2) homogenizing at a sufficiently low temperature to avoid initiation, (3) passing to a reaction zone and (4) polymerizing this monomer at 30-70 C. and pH 7À0-12À0; the ratio of C 14-20  alcohol to C 8-20  fatty acid salt is # 1À0: 1. In the examples, C 14 , C 16 , C 18 , C 20+1 , C 22 , C 12+18  C 14+18 , C 16+18  alcohols are employed with ammonium laurate (C 11 H 23 CO.ONH 4 ), and tbutyl peroxypivalate, in the polymerization of vinyl chloride.
Patent GB-1133787-A (GB)
Title: Improvements in or relating to lens trimming machines
IPC: B24B9/14
Filed: 1966-06-17
Abstract: 1,133,787. Grinding. SOC. DES LUNETIERS. 17 June, 1966 [28 June, 1965], No. 27241/66. Heading B3D. - A machine for automatically trimming spectacle lenses comprises a lens carrier driven at a relatively slow rotational speed and a grinding wheel driven at a relatively high rotational speed urged against each other, the penetration of the grinding wheel into the lens contour being limited by a fixed follower solid with the grinding wheel mounting and adapted to contact a templet fastened to the lens carrier, and reversing means adapted to reverse the direction of rotation of the lens carrier as a function of the relative positions of the follower and templet. As the lens and templet are rotated, the grinding wheel penetrates the lens V from an initial point O to a point A and an electrical contact is made between the follower and templet to effect reversal of rotation of the lens and templet so that grinding proceeds along an arc AB and thereafter arcs BC and CD. When the time lag between two contact points, say CD is below a predetermined value, reversal is prevented and the lens and templet rotated for grinding of the other side of the lens. In another embodiment, the reversal points A 1 -A 4 , Fig. 5, are controlled by a timer. In a further embodiment, the follower T, Fig. 4, is carried by a resilient blade R from a structure which supports a resilient feeler I and the reversal of the lens carrier and templet is controlled by contact pulses between the feeler and follower, such reversal only being effected when the thickness S of material on the lens to be removed exceeds a predetermined value.
Patent GB-960012-A (GB)
Title: Olefin polymeric compositions
IPC: C07D209/86
Filed: 1961-07-27
Abstract: Thioether esters of formula RCOOCH2CH2-SCH2CH2O-X where R is an aliphatic radicle, preferably of 8-30 C atoms, and X is H or -COR are made by treating an acid R-COOH with thiodiethylene gylcol, preferably in the presence of an acid catalyst, e.g. p-toluene sulphonic acid, using one or two molar proportions of acid according to the desired value of X. The di-esters may also be made by treating two moles of a salt of the acid, e.g. a silver salt with one mole of dib -chloroethyl sulphide.  Esterification may be effected in the presence of a solvent. Examples illustrate the preparation of (1) the lauric and (2) the stearic acid di-esters and (3) the lauric and (4) the stearic acid mono-esters, from the acid and glycol, and (5) the dilaurate from the silver salt of the acid and the sulphide.  The esters are stabilisers for crystalline polyolefines (see Division C3).ALSO:Crystalline olefine polymers are stabilized against the action of heat, light and ageing by means of thioether esters having the general formula R.CO.O.CH2.CH2.S.CH2.CH2.O-X wherein R is a linear or branched aliphatic radical and X is hydrogen or the group -CO.R, R preferably containing 8-30 carbon atoms.  The polyolefines may be stabilized in conjunction with nitrogen containing polymers which serve as modifiers, e.g. polyvinyl pyridines or polyalkyleneimines. The thio esters may be used in amounts of from 0.02-2% by weight of the polyolefine. The thio esters or solutions thereof may be mixed with the polyolefines for example at the end of the polymerisation or may be applied to articles manufactured from the polyolefines. The stabilized polyolefine compositions may be used for preparing filaments, staple, yarn, films, ribbons and shaped articles; an inorganic salt of stearic acid, e.g. calcium stearate is preferably added to the stabilized polyolefine prior to spinning. In Examples: (6)-(8) a melted polypropylene prepared using a stereo specific catalyst is mixed with the di-dodecoate of thioethylene glycol and then spun from a melt; (9) a similar polypropylene is mixed with the di-octadecoate of the thiodiglycol and spun; (10) the stabilized polypropylene of (8) is extended to form a film. The mono esters of the thioglycol with lauric and stearic acids are also mentioned. The preparation of the esters is described (see Division C2).
Patent GB-1483022-A (GB)
Title: Tennis racquet and tennis ball carrier for a cycle
IPC: A63B71/00
Filed: 1975-06-27
Abstract: 1483022 Racquet presses F E PETERS 27 June 1975 [25 April 1975] 27254/75 Heading A6D A tennis racquet press comprises press members 24, 26 held in adjustable spaced apart configuration by mean of screws 28 having square shaped shanks engageable in complementary shaped holes in press member 24, coil, springs mounted on said screws and wing nuts, and having U-shaped clips 60, 62 mounted on press member 24 to enable the press to be releasably attached to the arm 14 of a bicycle fork 16, and a clip 20 mounted on press member 26 to releasably receive a container 22 for tennis balls. Press members 24, 26 have stepped bore holes 50 and 48 therein to receive the various clips. In the embodiment shown, Fig. 2, clip 62 is held in place against press member 24 by means of a screw 28 with its square shank engaging in a complementary hole in one of the arms of the clip 62. Clip 60 has a spigot in one of its side arms which is releasably received in a press-fit fashion in a stepped bore hole 50 in press member 24. Clip 20 for holding the tennis ball container 22 is of horseshoe shape and has a similar spigot which is releasably received in a stepped bore hole 48 in press member 26. The clips 20, 60, 62 are preferably of flexible plastics material, e.g. nylon.
Patent GB-514986-A (GB)
Title: Inductance of infinitely variable value for electrical power circuits
IPC: G05F1/32
Filed: 1938-04-20
Abstract: 514,986. Automatic regulation; automatic control systems. PERRY, J. R. April 20, 1938, No. 27265/39. Divided out of 514,943. [Class 38 (iv)] Voltage.-Automatic regulation of the output voltage of an alternator is achieved by the increase in the excitation of an auxiliary field, opposing the main field, when the voltage of the alternator rises, and the increase in the excitation of a second auxiliary field, assisting the main field, when the voltage of the alternator falls, brought about by the variation of the direct-current saturation of reactors, controlling the auxiliary excitation, each of which comprise two separate cores with windings so connected in series that the voltages induced in the saturating windings by the choke windings substantially cancel out. In the Figure, auxiliary field windings 1 and 2, which respectively oppose and assist the main field winding of an alternator exciter, are supplied through rectifiers 3 and 4 from the secondaries of transformers 5 and 6 whose primaries are respectively connected in series with saturable reactors 7 and 8 across a low-voltage A supply 9 transformed from the alternator output. The saturating windings of reactors 7 and 8 are respectively energized through oppositely-connected rectifiers 13 and 14 from a D.C. source comprising the output of a potentiometer 18, connected across a constant voltage exciter, in series with the voltage across a resistance 12, obtained from supply 9 through rectifier 11 and transformer 10, so that a rise in the alternator voltage above a value determined by the setting of potentiometer 18 causes a saturating current to flow in reactor 7 thereby reducing the exciter excitation, and a fall in the alternator voltage produces a saturating current in reactor 8 to increase the exciter excitation. The resulting substantially constant output voltage may be varied by manual adjustment of potentiometer 18 and the saturating current is indicated by ammeter 17.
Patent GB-273299-A (GB)
Abstract: 273,299. I.G. Farbenindustrie Akt.- Ges. June 24, 1926, [Convention date]. Addition to 272,924. Anthraquinonehydroazines.-The dyestuffs obtained according to the parent Specification by treating 2-amino (or mono-substituted amino-) anthrahydroquinone-9 :10-disulphuric esters having a free 1-position first with alkaline oxidizing agents and then with acid oxidizing agents are obtained by a single direct treatment with acid oxidizing agents. According to an example a solution of the disodium salt of 2-aminoanthrahydroquinone-9 : 10-disulphurie ester is acidified and treated with ferric chloride whereupon the dyestuff separates.
Patent GB-814834-A (GB)
Title: Improvements in or relating to apparatus for digging up tubers and the like
IPC: A01D19/06
Filed: 1956-09-06
Abstract: 814,834. Potato-diggers. LUGT, J. M. DE, and VOSKUILEN, J. P. Sept. 6, 1956 [Sept. 8, 1955; Feb. 14, 1956], No. 27331/56. Class 6(3). A frame 1, raisable with respect to its land wheels 3 by cranks 10, has a universallyjointed shaft 6 (with a bearing 9 on the frame) driven from a tractor to rotate a wheel of curved tines 11 resilient in a tangential direction with the ends bent out of the plane of the wheel to form prongs 12 which pass into a potato ridge under the tubers and spring back to position on emergence from the ridge in which they are compressed together. Earth passes through the tines 11 and the potatoes are lifted by the prongs 12 and may be passed laterally to a conveyer. The wheel rotates in a clockwise direction, viewed from the rear of the digger, once for every two feet or so of advance. In Fig. 4, the potatoes are passed to a lifting wheel of curved fingers 22 which interdigitate with the prongs 12, have pointed ends and which are connected to a hub covered by a cylinder 21 and rotated by a shaft 16 through transmission 17 by which the shaft 6 is driven. The wheel of fingers 22 raises the potatoes to a driven wheel 18 by which they are ejected to the back and which interdigitates with the wheel fingers 22 to a depth controlled by an adjustable bearing 14.
Patent GB-1157455-A (GB)
Title: Method for Producing Alcohols by the Reduction of Esters of Organic Acids.
Inventor: HANSLIK TOMAS
IPC: C07C29/147
Filed: 1967-06-14
Abstract: 1,157,455. Alcohols by reduction of esters. CESKOSLOVENSKA AKADEMIE VED. 14 June, 1967 [20 June, 1966; 20 July, 1966], No. 27366/67. Heading C2C. Primary and secondary, saturated and unsaturated alcohols are prepared by the reduction of esters using Na 3 AlH 6  as reductant. The reaction is preferably carried out in hydrocarbon solvents such as xylene, toluene, benzene, hexane, heptane, dodecylbenzene or petroleum lamp oil at a temperature of between 50‹ C. and 150‹ C. or in polar aprotic solvents having a boiling point in the range 30-200‹ C. at 76 mm. of Hg. Esters of the general formula R 1 COOR, wherein R 1  is alkyl or aryl and R is alkyl are reduced and hydrolysed to give R 1 CH 2 OH and ROH. This reduction is particularly useful for the reduction of triglycerides contained in fats and oils to yield the long chain fatty alcohols and glycerol.
Patent GB-284414-A (GB)
Title: Improvements relating to mechanically propelled vehicles
IPC: B61C5/00
Filed: 1926-11-02
Abstract: 284,414. Bostock, F. J. Nov. 2, 1926. Driving bogie wheels.-In a locomotive or motor rail or road vehicle one or more-axles 1, 2 are driven through worm gear 6, 7 and a universally-jointed shaft 13B by a motor 11 movably mounted on the vehicle frame 12 so as to keep in driving connection with the driven axles as they swivel or radiate. In the construction shown the motor is mounted in trunnions 17, 18 slidable in guides 21, 22 fixed to the vehicle frame, and is connected by a tubular casing 23 and a ball joint 24, 25 to the worm casing 9 of one of the axles mounted.on-the bogie 3B. The motor may be steam, oil, electric, compressed air, &c.
Patent GB-446496-A (GB)
Title: Improvements appertaining to doffing mechanism for flyer spinning, doubling, twisting and like machines
IPC: D01H9/04
Filed: 1934-09-25
Abstract: 446,496. Doffing arrangements for flyer spinning &c. machines. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., and ANDERSON, J. K., Wellington Foundry, Leeds. Sept. 25, 1934, No. 27443. [Class 120 (ii)] Doffing-apparatus, such as that described in Specification 431,933, for flyer spinning doubling, twisting and like machines provided with duplicate interchangeable lifter rails, is actuated by manually operated cams arranged to, effect in one revolution the lowering, interchange and raising of the lifter rails. A hand wheel 11<b> is geared by sprocket - and - ratchet mechanism 10<b> with a shaft 5<a> provided with gears 10<d>, 19, respectively connected with gears 12, 19<a>. The shaft 5<a> constitutes the pivot of a lever 5 forming part of the lifter mechanism which comprises a cam and lever 2, 3, chain 3<a>, chain drum 14b carried by the lever 5, and chain 6 connected to the lifter shaft 8. The gear 12 rotates a shaft 12<a> which effects the lowering and raising of the lifter rails beyond the normal lower limit, and the gear 19<a> actuates cams 15d, 17, which respectively control the direction of rotation of the shaft 12<a> for lowering and raising the lifter rails, and oscillate a shaft 18<a> of the apparatus for exchanging the lifter rails. The shaft 12<a> rotates the chain drum 14b of the lifter mechanism, and so unwinds or winds the chain 6 and controls the movement of the lifter-shaft 8 to lower and raise the rails on to and from the exchange apparatus, the direction of rotation of the shaft 12<a> being determined by a clutch 13 operated by a lever 15 from the cam 15<c>. Interlocking gear comprising a lever 31, and stops 32 is provided between the mechanism and the lever H of the stopping and starting gear. Specification 398,886 also is referred to. The Provisional Specification describes also power-actuation of the apparatus and a separate electric or other motor or through clutch mechanism from the loose pulley.
Patent GB-500467-A (GB)
Title: A process for the production of gas black
IPC: C09C1/52
Filed: 1938-09-21
Abstract: 500,467. Carbon black. AUERGES. AKT.-GES., (formerly DEGEA AKT.-GES.). Sept. 21, 1938, No. 27557. Convention date, Oct. 12, 1937. [Class 90] Rubber-active gas black is obtained by . vaporizing anthracene residues in the presence of combustible gases having a carbon monoxide content below 25 per cent. and preferably below 20 per cent. e.g. illuminating gas or coke oven gas and passing this gas mixture with the exclusion of gases containing free oxygen to bored burners having a diameter not exceeding 0À75 mm. or slot burners having a width not exceeding 0À5 mm. where it is partially burnt with restricted quantities of air and the black is deposited on cooled surfaces. The heated combustible gas is preferably passed over as large a surface as possible of the heated anthracene residues and the temperature of the mixture during passage to the burners is maintained up to about 350-400‹ C. A suitable mixture contains' 400-600 gms. of vaporized material,per cubic metre of gas mixture.
Patent GB-173320-A (GB)
Title: Improvements in or connected with electrical condensers
IPC: H01G2/08
Filed: 1920-09-29
Abstract: 173.320. British Insulated & Helsby Cables, Ltd., Bayles. E. A., and Higham, H. Sept. 29, 1920. Condensers. - A condenser built up of metal and paper laminµ is provided with passages to permit of the circulation of oil or other liquid through the body of the condenser. In the construction shown, the condenser is of the rolled type and is subdivided into sections spaced apart by strips of corrugated material b. These strips may be made of cardboard or metal, but are preferably made of stiff paper, which is coated with shellac varnish and baked.
Patent GB-761418-A (GB)
Title: Improvements in fuel injectors
IPC: F02M61/10
Filed: 1954-09-24
Abstract: 761,418. Fuel-injectors ; supplying fuel. SOC. DES POMPES ET INJECTEURS TILLIET, S.P.I.T., and ALRIC, G. Sept. 24, 1954 [Sept. 26, 1953], No. 27705/54. Class 7 (3). In a fuel injector a mair valve member opens in a direction opposed to the direction of flow of fuel and an auxiliary valve member opens in the direction of flow of fuel the arrangement being such that the main valve member is periodically opened in response to pressure rises produced in a pressure chamber by the forcing thereinto of successive predetermined amounts of fuel and each periodical pressure rise in the pressure chamber after starting the opening of the main valve member produces in the passage between the main and auxiliary valve members a counterpressure which achieves first a sharp opening of the main valve member and thereafter a sharp opening of the auxiliary valve member. As shown fuel is periodically supplied by a pump into a chamber A. The fuel first raises a main valve member 8 which lifts sharply after which when the pressure in the chamber A is transmitted to the space between the valves 8 and 9 the valve 9 opens sharply. The fuel then passes to one or several orifices 2. Liquid tightness of the chamber A is achieved by means of at least one elastic member 5 and preferably by a plurality of such members. It is not desirable to have the valve 9 tightly applied upon its seat. A slight groove may be provided in the valve 9 or in its seat. In a modification injection orifices are controlled by a sliding valve connected to the valve member 9. Fig. 3 shows another modification comprising an outlet orifice of annular shape. The head 13 acts as a full deflector.
Patent GB-947661-A (GB)
Title: Improvements in safety seat belts
IPC: B60R22/16
Filed: 1961-07-31
Abstract: A seat belt for motor vehicles is made from a fabric of which the warp, at least, consists of polyester filaments or yarns and the fabric has an elongation of not less than 33% when subjected to a tensile force of 70 to 80% of the breaking load, and such that at least 75% of the elongation remains after the load has been reduced to 5 to 7% breaking load.  The weft may comprise polyester filaments, or polyamide fibres, or filaments of cellulose hydrate.
Patent GB-1082336-A (GB)
Title: Tuning devices for radio receivers and the like
IPC: H03J5/10
Filed: 1966-06-21
Abstract: 1,082,336. Tuning mechanisms. SHlNSHIRASUNA DENKI KABUSHIKI KAISHA. June 21, 1966 [June 30, 1965 (2)], No. 27757/66. Heading H3Q. A tuning device for radio receivers or the like comprising a rotatable member 3 carrying a plurality of variable capacitors 2 each operating over a different frequency band, a fixed driving- shaft 5 for the capacitors, member 3 being rotatable to bring any selected one of the capacitors into driving engagement with the driving shaft. Each capacitor has contacts to engage stationary contacts, when that particular capacitor is selected, to connect that capacitor into the tuning circuitry. Each capacitor carries a frequency indicator 1.
Patent GB-1125108-A (GB)
Title: Improvements in or relating to hydrogen diffusion elements
IPC: C01B3/50
Filed: 1966-06-21
Abstract: 1,125,108. Vitreous glazes. ENGELHARD MINERALS & CHEMICAL CORP. 21 June, 1966 [22 June, 1965], No. 27766/66. Heading C1M. [Also in Divisions B1 and C7] Diffusion elements for hydrogen separation comprise porous ceramic bodies coated with a vitreous glaze, generally 1Á-1 mil. thick, containing 50-95% by wt. of a finely divided hydrogen-permeable metal embedded therein. The hydrogen-permeable metal may be Pd or Pd alloys containing by wt. 5-40% Ag, or 10-40% Au. They may be made by direct application of a mixture of finely divided glaze with finely divided metal in the required proportions to the support and then firing to the fusion temperature of the glaze, or by applying a suspension of glaze in a solution of an organic film forming compound to the support and firing, the suspension being such that glaze and metal are deposited in the correct proportions. Multiple coatings may be used, each being fired before the next application. Other specified alloying metals include Ni, Pt and Ru. Preferred glazes melt at temperatures higher than the normal operating temperatures of hydrogen diffusion units (400-800‹ C.) and below the softening temperature of the ceramic support, so that the support does not suffer distortion and loss of porosity during the firing of the glaze. Suitable glazes fusing at about 1000‹ C. have compositions which comprise the oxides of Al, Si, B, K,. Na, Ca, Sr and Ba. Oxides; e.g. those of Pb and Bi, which are likely to be reduced to the metal at the operating. temperature should not be included. Suitable ceramic supports comprise by wt. 50-90% Al silicates, 10-50% clay and 0-10% silica.
Patent GB-1508979-A (GB)
Title: Machines suitable for use in carrying out hf operations
IPC: B29C35/12
Filed: 1974-06-22
Abstract: 1508979 Embossing BRITISH UNITED SHOE MACHINERY CO 22 May 1975 [22 June 1974 18 Dec 1974] 27829/74 and 54778/74 Heading B6J [Also in Division B5] An HF welding machine, defined as an HF machine for (a) welding or welding and cutting a workpiece made of thermoplastic layers or non-activatable layers with a heat-activatable adhesive layer therebetween or (b) embossing a workpiece using either an indenting tool or a flow-moulding die, comprises two platens to apply pressure to a workpiece located therebetween and which act as electrodes, and temperature regulating means to regulate the surface temperature of at least one of the platens provided with passages through which fluid can circulate, the temperature regulating means comprising means for heating circulating fluid, means for cooling circulating fluid, fluidtemperature sensing means adjacent the outlet of the passages of the platen(s), and valve means for controlling the flow of fluid selectively through the heating and cooling means according to the fluid temperature sensed. Preferably, the temperature regulating means regulates the surface temperature of both platens the passages of which may be arranged in series with one another. Thermostats for sensing the fluid temperature are located adjacent the outlet ports of the passages of the platens and are each adjusted to a setting, which may be the same or different, the arrangement being such that, while the fluid temperature sensed by either thermostat is higher than the set level, the cooling means is operative and only when both thermostats sense a temperature below the setting is the heating means operative. The valve means comprises a solenoid valve switchable to direct fluid selectively through the heating and cooling means. A restrictor may be positioned downstream of the heating means so that when the valve is in the cooling condition the major proportion of the fluid passes through the cooler but a minor proportion passes through the heater to avoid overheating of fluid remaining therein. The thermostats are set to give a platen surface temperature of 30-60‹ C., e.g. 60‹ C. In a modification, each platen is provided with temperature regulating means independent with that of the other. The invention is applicable to a single station machine, a twin-tray machine or a multi-station machine as described in Application 14911/74. The latter machine comprises upper and lower platens and a turntable having a plurality of, e.g. three, workpiece supporting portions which can be brought successively into opposed relation with the upper platen and overlying the lower platen. Radiant heating means can be swung over the supporting portions not in opposed relation in order to preheat such portions before the start of a working day or shift.