baber/WOPTO huggingface dataset:
Patent GB-601903-A (GB)
Title: Improvements relating to friction clutch discs
IPC: F16D69/02
Filed: 1945-12-10
Abstract: 601,903. Clutch plates. FERODO, Ltd., HALL, W., and ANDREW, W. D. C. Dec. 10, 1945, No. 33298..[Class 80 (ii)] A friction clutch disc of the type having spline teeth cut either in the bore or on the periphery, is characterised by having friction surfaces of resin or rubber-bonded asbestos yarn or fibre and the spline portion of resinimpregnated paper or cloth, the whole being consolidated under heat and pressure. Specification 601,790 is referred to.
Patent GB-1110967-A (GB)
Title: Improvements in a device in rotatable drums for suspending chain systems for heat exchange
IPC: F27B7/18
Filed: 1965-08-04
Abstract: 1,110,967. Rotary furnaces; calcining. G. BOJNER. 4 Aug., 1965 [28 Jan., 1965], No. 33403/65. Headings F4B and F4G. The preheating section of a rotary furnace 1 has a cage of plates or bars 2 running longitudinally between annular end members 3, said cage being of lesser diameter than the furnace inner wall and being provided with a mass of chains 5 extending between the inner edges of the bars. In a modification, Figs. 3 and 4 (not shown), the longitudinal bars are replaced by a pair of helical bars.
Patent GB-1243435-A (GB)
Title: Device for shutting-off and changing-over the gas and liquid passages especially for gas chromatographs
IPC: G01N30/20
Filed: 1969-07-02
Abstract: 1,243,435. Valves. CHEMOPBOJEKT. PROJEKTOVA INZENYRSKA A KONZULTAGNI ORGANISACE. 2 July, 1969 [5 July, 1968], No. 33415/69. Heading F2V. A valve for gas chromatographs comprises a body 1 in the wall of which is a groove 2, and a plurality of gas passages 7 opening into the groove, an elastic diaphragm 3 located on the wall of the body, a lid 4 located over the diaphragm, closing members 5 arranged in openings in the lid intermediate the passages, and a template 6 for actuating the closing members to shut-off or open the passages. In Fig. 2 (not shown), the closing members 5 are balls. The templates can be changed to give a different programme.
Patent GB-908773-A (GB)
Title: Organoleptic materials derived from tobacco and method of production thereof
IPC: A24B15/30
Filed: 1960-09-29
Abstract: To alter its flavour and aroma, tobacco is reacted with one or more alkyl alcohols in the presence of a mineral acid, or acid salt, catalyst.  A large number of suitable alkyl alcohols are specified, preferably containing up to eight carbon atoms, e.g. ethanol, isobutanol and n-hexanol.  The catalyst may be hydrochloric, sulphuric or phosphoric acid, aluminium, iron or magnesium chloride, or sodium or potassium acid sulphate or phosphate.  The tobacco may be made almost neutral after reaction, using sodium bicarbonate or hydroxide.  In one method of reaction, tobacco leaves are suspended in a chamber under raised temperature or low pressure conditions, and vapours of the alcohol and acid are circulated in the chamber for a period which may be from less than three hours to more than three weeks, the leaves being afterwards ventilated in situ or after removal from the chamber.  Reaction may take place as the leaves travel slowly through the chamber.  The reacted tobacco may be blended with other tobaccos.  A similar method may be used on cigarette filler tobacco.  In another method of reaction, tobacco, e.g. stems, which may be first treated with water or one of a large number of specified organic solvent media, is reacted with the alcohol and catalyst in liquid form, and the final product after removal of solids is sprayed on to other tobacco in the amount of between 0.01% and 5% of the weight thereof.  Quantitative process examples are given using chemical operations which are described in detail.
Patent GB-521375-A (GB)
Title: Improved means for locking a working piston actuated by a pressure fluid in a cylinder
IPC: F15B15/26
Filed: 1938-11-17
Abstract: 521,375. Hydraulic motors. JUNKERS FLUGZEUG - UND - MOTORENWERKE AKT GES. Nov. 17 1938. No. 33430. Convention date Nov. 26, 1937. [Class 69 (ii)] [Also in Group XXVI] A piston is locked within its cylinder at the ends of its stroke by means dependent upon inclined surfaces on the locking members. A piston 2 has end portions 6, 6<SP>1</SP> and a reduced body portion which carries a sleeve 3 having at its ends inclined surfaces 4, 4<SP>1</SP>. Between these surfaces and the piston ends are spring rings 5, 5<SP>1</SP> normally tending' to take the smallest diameter. When the piston arrives at one end of its stroke, the ring 5 lies on the inclined surface 4 and is expanded to enter a groove 7 in the cylinder wall. The end flanges 6, 6<SP>1</SP> are provided with a grooved passage 12 leading to inlet connections 11, 11<SP>1</SP>. To release the locking ring, pressure is admitted through 11 which moves the sleeve 3 relative to the body of the piston and so the ring 5 is able to contact and pass out of the groove. A spring ring 18 mounted in a groove in the piston body may co-operate with grooves 17 in the sleeve 3 to act as a locking means should the pressure fail. In a modification, the relatively slidable member is formed as a piston 23 in a hollow in the main piston 2, and the rings 5, 5<SP>1</SP> are operated by radial rods 16, 16<SP>1</SP> which are moved by the inclined surfaces on the central sleeve. This central member has a rod 29 passing outside the apparatus to contact points 31, 32 which are connected to an indicator showing when the locking means is engaged.
Patent GB-390775-A (GB)
Title: Improvements in the manufacture of needle carriers
IPC: B65B15/04
Filed: 1932-11-28
Abstract: 390,775. Carding needles. SCHUMAG SCHUMACHER METALLWERKE AKT.- GES. FUR PRAZISIONSMECHANIK, 35, Hauptstrasse, Aachen, Germany. Nov. 28, 1932, No. 33624. Convention date, Jan. 15. [Class 3 (ii).] A method of carding needles consists in glueing a cloth tape along its two edges to an advancing paper tape so as to form a flattened tube, the adhering tapes then being drawn over a stationary mandrel and the needles stuck through the cloth tape by pushing them transversely off the mandrel and in contact therewith. As shown in Fig. 3, the paper and cloth tapes b, a, passing from rolls c, d, respectively, are led to a roller g where a band i, attached to the mandrel k, is laid on the tape b between strips of glue applied to the tape by a roller f. The tube so formed by the adhered tapes is passed over the mandrel k which is pressed upwards by a member n, Fig. 5, into a gap o<1> in a table o so that the portion covered by the cloth tape projects above the table and needles can be pushed through the tape and a slot m in the mandrel while supported on the table. A heating member l in the roller g accelerates the drying of the glue connecting the tapes.
Patent GB-781450-A (GB)
Title: Zirconyl 2-ethylhexoate
IPC: C07F7/00
Filed: 1953-08-20
Abstract: The invention comprises as a new composition zirconium compounds of 2-ethylhexoic acid in which 2-ethylhexoic acid radicals are bound to the zirconyl group =Zr=O.  They are prepared by the double decomposition of watersoluble zirconium salts, e.g. zirconium oxychloride or zirconium sodium sulphate, with an alkali 2-ethylhexoate or by the fusion of a water insoluble zirconium carbonate with 2-ethylhexoic acid.  After removing unreacted 2-ethylhexoic acid a mixture of the two following compounds is obtained: <FORM:0781450/IV (a)/1> <FORM:0781450/IV (a)/2> It is possible to increase the amount of compound (2) in the mixture without decreasing the solubility of the compound in aliphatic and aromatic compounds, by dissolving the mixture in such a hydrocarbon and removing the solvent by distillation or steam distillation.  In the example, zirconyl sodium sulphate is dissolved in water and a neutral solution of 2-ethylhexoic acid in caustic soda solution is added; the precipitate formed is separated and dried.  The percentage of zirconium present in the mixture is increased by digesting it with cold methyl alcohol.
Patent GB-1513343-A (GB)
Title: Bearings
IPC: B60G13/00
Filed: 1976-08-13
Abstract: 1513343 Bearings T GEFFNER 13 Aug 1976 [12 Nov 1975] 33891/76 Heading F2A A bearing comprises radially inner and outer race members 12, 14 capable of relative rotary and rectilinear movement, retainer means 26 located between said members and movable relative to at least one of the members and having a plurality of closed loop paths which retain bearing balls between the members, the balls being arranged for movement into and out of engagement with bearing lands 20 which are formed on one of the members, each closed loop path having a pathway through which the balls project for rolling engagement with the race members, and the number of lands being different from the number of closed loop paths. The balls in the two legs of each closed loop path are spaced from each other an arcuate distance that is greater than the arcuate width of each land 20 and less than the arcuate extent of each of the spaces 22 between the lands. In this way, whatever the rotational positions of the race members, only the balls in one leg of each closed loop path will be in contact with both race members simultaneously. The retainer means may comprise a single cylindrical member, or a plurality or arcuate segments, each die-cast or stamped from metal sheet stock.
Patent GB-640696-A (GB)
Title: Improvements in and relating to pressure-sensitive adhesive tapes or sheets
IPC: C09J7/02
Filed: 1945-12-17
Abstract: An adhesive for use in pressure-sensitive tapes or sheets comprises a polyvinyl ether having an intrinsic viscosity of between 4 and 15 in a 0.168 per cent benzene solution at 25 DEG  C. measured on the Ostwald Viscosimeter.  Suitable ethers are polyvinyl isopropyl, n-butyl and isobutyl ethers.  They are preferably stabilized with age-resisters such as (1) hydroxy derivatives of conjugated or condensed ring structures and polyhydroxyphenols, e.g. phenol, alkylated polyhydroxyphenol, b  - hydroxybiphenyl, hydroquinone and a hydroquinone mono benzyl ether; (2) aminophenols and phenyl amine salts, e.g. p-hydroxy-N-phenyl morpholine, di-o-tolyl guanidine salt of dicatechol boric acid and diphenylamine; (3) aldehyde- or ketone-amino condensates, e.g. 2,2,4-trimethyl - 1,2 - dihydroquinoline, butyraldehyde-aniline and acetone-aniline condensates, condensates of p-amino-diphenyl and acetone and of diphenyl amine and acetone containing also N,N1-diphenyl p-guanidine. For greater adhesiveness, plasticizers and tackifiers may be added. Low to medium molecular weight polyvinyl ethers are useful plasticizer-tackifiers.  Suitable plasticizers are mineral and light petroleum oils, pine tar and an unsaturated cycloaliphatic oil and tackifiers include rosin glyceride, dehydrogenated rosins and rosin glycerides, and a high melting cycloparaffin.  Fillers and extenders which may be added include finely - divided calcium carbonate, ground glass-silica mixtures, titanium dioxide and zinc oxide. Specifications 441,064, 490,432 and 598,456 are referred to. Reference has been directed by the Comptroller to Specification 602,424.
Patent GB-282673-A (GB)
Title: Track-clearer for motor-cars
IPC: B60R21/34
Filed: 1927-12-17
Abstract: 282,673. Putte, J. van de. Dec. 24, 1926, [Convention date]. Obstruction - removers; wheelguards. - A device for removing persons or other obstacles from the path of a motor-car comprises a V- shaped framework 6 each arm of which carries a series of rotatable flat discs adapted, on encountering an obstacle, to be rotated and thereby to deflect the obstacle to one side or the other. In the construction shown two frameworks are employed, the upper one being supported by means of channel-sectioned extension arms 1 at the level of the motor-car bonnet, and the lower one being pivotally mounted at 4 on the chassis so that its height above the ground can be adjusted by a screw 5 and bevel-gearing. Each of the frameworks carries at its apex 7 a front disc 2 adapted to rotate in either direction, and on each side a series of overlapping discs 3 adapted to rotate in one direction only. According to the Specification as open to inspection under Sect. 91 (3) (a) cylinders may be substituted for the discs 3. This subject-matter docs not appear in the Specification as accepted.
Patent GB-453685-A (GB)
Title: Improvements in fuzes for projectiles and the like
IPC: F42C15/36
Filed: 1935-12-10
Abstract: 453,685. Projectile fuzes. REMONDY, L. E., 42, Rue d'Anjou, Paris. Dec. 10, 1935, No. 34237. Convention date, Dec. 20, 1934. [Class 9 (i)] A percussion fuze is provided with an auxiliary device comprising a spring striker c<1> held cocked by a fusible or like joint or member f on one side of a wall a', and a combustible charge B on the other side of the wall adapted to be ignited by the flash from the percussion fuze, for example A, Fig. 2, and after a given delay to transmit sufficient heat to disintegrate the member f and release the striker c<1>. In one form, Fig. 1, the striker fires a percussion cap C at once to explode the projectile, the auxiliary device acting as a firing delay. In another form, Fig. 2, the striker c<1> remains supported by a shoulder h and requires a second impact to dislodge it from the shoulder before it can fire the percussion cap C, the auxiliary device having then a delay arming action with respect to the striker c<1>.
Patent GB-346146-A (GB)
IPC: A61B7/02
Abstract: 346,146. Stethoscopes. CARSBERG, H. W., 86, Rosoman Street, London. March 28, 1930, No. 9934. [Class 81 (ii).] In stethoscopes in which the ear-pieces a are carried on curved springs b hinged together at c, the springs bare forked at e and the forked ends connected by pivot pins d to lugs f on the ear-pieces, preferably on the outer side thereof.
Patent GB-819214-A (GB)
Title: Rotary wing aircraft
IPC: B64C27/41
Filed: 1956-11-14
Abstract: 819,214. Rotary wing aircraft. WILFORD, E. B., and LEMONT, H. E. Nov. 14, 1956 [Nov. 17, 1955], No. 34772/56. Class 4. A rotary wing aircraft rotor system comprises a drive shaft, a hub universally mounted thereon and connected thereto by flexible means so as to bias the hub towards a normal position of equilibrium, a plurality of blades journalled radially in the hub, and means to take up spanwise forces between the blades. In Fig. 1, the rotor shaft 24 is driven through a gear 122 and has an extension 22 ending in a spherical part 20 forming with a bearing member 16, a universal joint for the hub 11. A multiarmed flexible spider 26 is secured to the hub at 30, and a similar spider 32 is secured to the drive shaft at 32. These spiders are connected at the ends of their fingers as at 40, and transmit uniform rotation to the hub while allowing tilting thereof and biasing the hub to a central position. The hub is formed with four cylindrical arms 12 each journalling through roller bearings 52, a cylinder 50 having a flanged end 51 clamped by a ring 56 to a flange 45 on a blade root 44. A tapered pin 58 passing through the cylinder 50 and blade root 44 serves as an anchor for a tension and torsion strap 74, each strap also being attached to a member 78, Fig. 2, relieving the hub of centrifugal forces. A collar 64 is splined to the inner end of each cylinder 50, and bears an arm 66 connected by a rod 108 to the inner ring of a conventional swash ring 94, Fig. 1. Each arm 66 is adjustable to vary the " lead" of the pitch control mechanism. Stops 80 on the hub abut the upper surface of member 78, and a resilient ring 82 surrounds the drive shaft 24 within member 78, to restrain the hub tilt beyond a predetermined point. The spherical member 20 contains an oil reservoir lubricating the bearing 16 through ducts 118. The two spiders 26 and 32 may be replaced by a bellows extending between the fastenings 30 and 34, and the bearing 16 may be replaced by ball bearings. U.S.A. Specification 2,648,387 is referred to.
Patent GB-1403412-A (GB)
Title: Disazo pigments and their preparation
IPC: C09B35/28
Filed: 1972-07-25
Abstract: 1403412 Disazo pigments AZIENDE COLORI NAZIONALI AFFINI ACNA SpA 25 July 1972 [26 July 1971 29 Dec 1971] 34798/72 Heading C4P [Also in Division C2] The invention comprises disazo pigments of formula where R<SP>1</SP> and R<SP>2</SP> independently represent in which Ar is an optionally substituted benzene, naphthalene or pyridine nucleus or an optionally substituted benzimidazolone nucleus attached to the N atom through the 5- or 6-position, and ring A may be substituted by halogen atoms or C 1 -C 3  alkyl or alkoxy groups. The pigments may be prepared by tetrazotizing a 4,4<SP>1</SP>-diaminobenzaniline and coupling 1 mole of the tetrazo component with two moles of an acylacetanilide or one mole each of two different acylacetanilides. Coupling may be performed in the presence of surface-active agents, e.g. cetyl pyridinium chloride, and of other additives, e.g. sodium formate. The obtained compounds are yellow pigments which are used in particular in the manufacture of printing inks and may also be used for colouring plastics such as polyethylene, polystyrene and cellulose esters, and in the bulk dyeing of cellulose acetate.
Patent GB-467433-A (GB)
Title: Improvements in or relating to the manufacture of esters of methacrylic acid
IPC: C07C69/54
Filed: 1935-12-16
Abstract: Esters of methacrylic acid and primary monohydric alcohols are manufactured by treating the corresponding esters of a -hydroxyisobutyric acid with phosphorus pentoxide in a non-hygroscopic volatile organic liquid which is inert with respect to the reactants, preferably boiling below 200 DEG  C., e.g. an aliphatic, aromatic or hydroaromatic hydrocarbon, preferably saturated, or a chloro derivative thereof such as benzene, toluene, xylene, solvent naphtha, chlorobenzene, petroleum naphtha, ethylene dichloride, carbon tetrachloride, cyclohexane, octane, tetrachlorethane, o-dichlorbenzene, petroleum ether or trichlorethane.  The proportion of phosphorus pentoxide should be \ba1/12\be to 1, preferably about 0,33 molecular proportions to one of hydroxyisobutyric ester.  The process is preferably carried out with agitation at a moderate temperature, e.g. 25--120 DEG  C. The products may be polymerized, if desired with the aid of polymerization catalysts such as benzoyl peroxide.  The polymers obtained from esters having more than five carbon atoms in the alcohol radicle may be used in connection with lubricating oils, laminated glass, adhesives, rubber compositions and coating compositions.  Examples describe the manufacture and polymerization of the cetyl, lauryl and n-octadecyl esters. Reference is also made to the production of the n-hexyl, n-octyl, a -ethylhexyl, phenylethyl, heptyl, b -chloroethyl, benzyl, methyl, ethyl, decyl and oleyl esters.  The a -hydroxyisobuytric esters employed as starting materials are obtainable by esterification of the acid with the desired alcohol in the presence of a catalyst such as sulphuric acid, or by the action of the acid chloride on the alcohol.ALSO:The viscous polymerization products of esters of methacrylic acid with primary monohydric alcohols containing more than give carbon atoms in the alcohol radicle may be used in lubricants.
Patent GB-195171-A (GB)
Title: Improvements in folders for music
IPC: B42D3/04
Filed: 1921-12-30
Abstract: 195,171. Williams, C. Dec. 30, 1921. Covers.-A cover for holding a piece of music has a transparent window B in one side through which the title can be seen, and transparent tapes C on the interior under which the music is inserted so that it can be read when the cover is opened.
Patent GB-728890-A (GB)
Title: An improved goggle valve
Inventor: HOOKHAM GEORGE
IPC: F16K3/10
Filed: 1953-12-16
Abstract: 728,890. Rotary plate valves. MILES & PARTNERS (LONDON), Ltd., J. Dec. 16, 1953, No. 35110/53. Class 135. In a rotary plate valve as described in Specifications 681,844 and 681,845 the clamping and releasing means for moving the valve seats 21, 22, Fig. 2, towards and away from the valve plate 23 are arranged as a single unit disposed wholly on the same side of the valve plate as the pressure ring 20. As shown, six units are equally spaced circumferentially around the valve, each unit comprising a bridle 32, 32A, Fig. 3, connected at one end to a frame 14 carrying a pipe 12 secured to the conduit 10 and at its other end to a hydraulic ram 35. A spring 33 compressed between abutment plates having spigots 46, 44 engaging recesses in a member 48 fixed to the frame 14 and a bolt 45 screwed in a flange 34 of the pressure ring 20 urges the seat 21 towards the seat 22 and the plate 23 to effect clamping of the plate. To release the plate, pressure liquid is supplied to the ram 35 to move its piston 39 to the left and hence the pressure ring 20 carrying the seat 21. The disposition of the units wholly on one side of the plate 23 permits them to be located closer into the valve and the units to be more effective in clamping and thus reducing leakage.
Patent GB-382802-A (GB)
Title: Improvements in brake systems for electrically propelled rail vehicles
IPC: B60T13/36
Filed: 1931-12-18
Abstract: 382,802. Fluid - pressure brakes. MALEY, A. W., 4, Grosvenor Road, and TAUNTON, E. M., 11, Wilton Road, both in Handsworth, Birmingham. Dec. 18, 1931, No. 35127. [Class 103 (i).] In combined controllers and brake control valve mechanism for electric rail vehicles wherein valves for pneumatic brakes are actuated by cams on the controller, the brake pipes 3 are permanently joined to a block 4 which is bolted at 5 to the underside of the valve box 2 and cam casing 1 to facilitate the removal of the controller top which may be integral with the box and casing 1, 2.
Patent GB-998165-A (GB)
Title: Improvements in or relating to electrical signal translating circuits
Inventor: HYMAN ROBERT ANTHONY
IPC: H03F3/04
Filed: 1960-10-14
Abstract: 998,165. Semi-conductor circuits. STANDARD TELEPHONES & CABLES Ltd. Sept. 29, 1961 [Oct. 14, 1960], No. 35315/60. Heading H3T. [Also in Division H1] An electrical signal translating circuit comprises a semi-conductor body having only capacitative or inductive connections thereto (i.e. no ohmic or rectifying connections) and containing one or more PN junctions and non- conducting regions so that closed current paths comprising PN junction(s) exist round the region(s). Figs. 1 and 2 show a self-powered tunnel diode oscillator solid circuit having the equivalent circuit shown in Fig. 3. A photovoltaic cell is provided by the junction between diffused P-type layer 2 and N-type body 1 which applies a voltage to the tunnel diode portion formed by P region 3 and N region 4. The circuit is established round hole 5 in the body to which an inductive or capacitative connection may be made; a ferrite slug may be provided in the hole to improve coupling and tuning. Fig. 5 shows an amplifier construction comprising a transistor formed by P-type regions 9 and 10 and N-type region 11 with the equivalent circuit shown in Fig. 6. The collector is biased by utilizing the photo-electric effect of PN junction 6a and the base by the photo-electric effect of the junction between regions 10 and 11, the circuit being established around a second hole 13. Other arrangements are described including a cascade transistor amplifier arrangement in which the emitter of one transistor is connected to the gate of the next via a zone of degenerate semiconductor, and a further embodiment comprising a tunnel triode. A series of solid circuit assemblies may be stacked with capacitative coupling therebetween and a source of radioactive material may be incorporated in the body to energize the photo-cell portion; alternatively, the circuit may be powered by coupling the circuit to an R.F. power supply and rectifying this within the circuit.