baber/WOPTO huggingface dataset:
Patent GB-552455-A (GB)
Title: Hair waving apparatus and methods of making and using the same
IPC: A45D2/34
Filed: 1941-10-09
Abstract: 552,455. Heating by chemical action. YVEN, E. J. Oct. 9, 1941, No. 13037. [Class 64 (ii)] ]Also in Group XIV] In permanent waving, the hair, wound upon a mandrel, is positively streched and simultaneously maintained under tension throughout the softening stage and also the hardening stage by reason of the mandrel expanding during the softening stage caused by charging the expandible mandrel with exothermic material which expands when activated. In one form the mandrel comprises a receptacle constructed from a blank of porous paper to provide two pockets 54, Fig. 3, the upper edges of which are closed by a clamp 55 after the pockets 54 have been charged with exothermic material E. The receptable is then wound spirally to form a mandrel by means of a key 56, a perforated sheet being incorporated therewith to form a sealing closure. The hair H, Fig. 10, is then wound on this mandrel after passing through a protecting pad 62 and finally enclosed with a moistened absorbent pad 63 and waterproof wrapper W. Activation, preferably by a dilute ammonium compound, causes the material E to expand thereby in turn causing the mandrel to expand peripherally. Various forms of mandrel are described. In one form a shell is formed of a perforated metal blank with tongues 67, Fig. 17, adapted when the blank is rolled into shape to enclose the conical ends which contain sachets of exothermic material, the side edges of the blank abutting so that it may expand. The conical sachets or envelopes may be formed as,shown in Fig. 24 in which a circular blank having -creases 82 is folded as shown and has an integral end 83. While the envelopes may be charged with exothermic material, in other forms the blank may be coated or impregnated with the material which may be a mercurous salt precipitated in the blank. In one case the blank may be soaked in a solution of mercurous nitrate and when dry dipped into a solution of sodium chloride. Specification 531,250 is referred to.
Patent GB-997293-A (GB)
Title: Process for increasing the viscosity of aqueous solutions of non-ionic detergents
IPC: C11D1/835
Filed: 1962-04-04
Abstract: Cleansing compositions comprising water and a non-ionic detergent are thickened and rendered germicidal by the addition of one of (a) the dodecyl benzyl chloride quaternary ammonium salt of N : N-dimethyloctadecylamine, (b) the dodecyl benzyl chloride quaternary ammonium salt of N - tallow - tris - (hydroxyethyl) trimethylene diamine, (c) the dodecenyl chloride quaternary ammonium salt of N : N-dimethyloctadecylamine, (d) the dodecenyl chloride quaternary ammonium salt of N : N-dimethyldodecylamine or (e) the propargyl chloride quaternary ammonium salt of N-methyl-N : N-di-(hydrogenated tallow) amine.  In addition a further quarternary ammonium germicide may be present.  An example illustrates an aqueous cleansing fluid comprising 10% nonyl phenol/ethylene oxide (detergent), 7.5% di-sodium salt of N-(2-hydroxyethyl) imino diacetic acid, (detergent builder), 5.0% tallow or soya trimethyl ammonium chloride (germicide), about 4% dodecylbenzyl chloride quaternary ammonium salt of N : N-dimethyloctadecylamine (thickener) and rhodamine (dye).  The pH may be adjusted to 9 with glacial acetic acid.
Patent GB-841130-A (GB)
Title: Improvements in or relating to electron gun assemblies
Inventor: ALGAR LESLIE ERNEST
IPC: H01J3/02
Filed: 1958-04-24
Abstract: 841,130. Velocity-modulated tubes ; cathode ray tubes. M-O VALVE CO. Ltd. Feb. 11, 1959 [April 24, 1958], No. 13116/58. Class 39(1). An electron gun assembly comprises a plurality of electrode components each of which includes at least one laminar part 5, 13, 14, Fig. 1, which has formed in it a plurality of slots 15, Fig. 2, inwardly extending from its periphery, all the laminar parts being arranged parallel to each other, by means of a plurality of insulating elongated support members 19 disposed with their lengths perpendicular to the lamina parts and having slots which correspond with the slots in the laminar parts. Each of the slots 15 in the laminar parts comprise two inwardly extending sides parallel to each other and to a diametral plane which intersects a third edge, joining the two sides, at a point off-set from its centre thus ensuring that the two sides are of different lengths. The length of the shorter side is greater that its distance from the diametral plane. The elongated members may be in the form of strips or, as shown, they may be cylindrical, in which case their radii are equal to the length of the shorter-slot-side, and the rods are provided with segmental slots 20 so that they fit into the laminar slots as shown in Fig. 2. The rods are disposed symmetrically about the gun axis when the lamina parts are of annular form. A preferred embodiment describes the gun for use in a travelling wave tube which comprises indirectly heated cathode 1, Fig. 1, mounted on tube 2 supported by clip 3 from a tubular heat shielding member 4. This member is connected to the titanium annulus 5 which has central portion 7 bent back towards the cathode and forms a focussing electrode which operates at cathode potential. The second annulus 13 is secured to one end of the cathode heating member 8, and the third titanium annulus 14 constitutes the anode. The annuli are provided with three apertures 18, Fig. 2, housing bushes 25, Fig. 1, through which alignment rods 22 pass. The support rods 19 are then fitted into the slots 15 in the annuli and the assembly is inserted into a tubular part 21, which may form part of the envelope of the device. The gun arrangement is stated also to be suitable for use in klystrons and cathode ray tubes.
Patent GB-404271-A (GB)
Title: Improved production of ultra-violet and luminous radiations by electric discharge apparatus
IPC: H01J65/04
Filed: 1932-05-06
Abstract: 404,271. Discharge lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE PAZ & SILVA, (formerly CLAUDE-LUMIERE SOC. ANON. POUR LES APPLICATIONS DES GAZ RARES A LA LUMIERE PROCEDES G. CLAUDE), 8, Rue Cognacq-Jay, Paris. May 6, 1932, No. 13153. Convention date, Dec. 26, 1931. [Class 39 (i).] A lamp for producing ultra-violet or luminous radiations, containing one or more gases, particularly xenon and krypton at a low pressure such as one or a few millimeters, with or without mercury or other metal vapour, is energized by a current of instantaneous or continuous intensity greater than three amperes per square centimeter, or by an electromagnetic field of high instantaneous intensity, so that spark spectra are emitted. The spectrum may be varied by adjusting the proportion of gases and the pressure. Current densities of the order of tens of amperes per square centimeter may be used. Neon and argon may be mixed with xenon and krypton. Any metal vapour is present in such small quantities that, at the working temperature, the vapour pressure of the metal is less than the vapour tension of the liquid metal at that temperature. Specification 293,682, [Class 39 (i), Electric lamps, Arc &c.], is referred to. The Specification as open to inspection under Sect. 91, comprises also lamps (a) containing xenon at a pressure of 5-10 millimeters and operated at a current density of 60 amperes per square centimeter and (b) containing a mixture of 90 per cent neon and 10 per cent xenon at a pressure of 5-10 millimeters. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 269,161, [Class 39 (i), Electric lamps, Arc &c.].
Patent GB-1376886-A (GB)
Title: Process and composition for inhibiting scale desposition
IPC: C09K8/528
Filed: 1973-03-20
Abstract: 1376886 Inhibition of scaling TEXACO DEVELOPMENT CORP 20 March 1973 [4 May 1972] 13219/73 Heading C7E Scaling of bodies in contact with scale-prone water is inhibited by adding to the water a sulphonated alkali lignin. These are made by treatment of lignin with alkali followed by sulphonation; the amount added is preferably 0À0005- 0-01 wt per cent, and scaling may be inhibited in oil-well equipment by adding either a 1-50 wt per cent concentrate or solid compound to water in contact with the equipment.
Patent GB-356186-A (GB)
Title: Improvements in or relating to screw-cutting chasers
IPC: B23G5/00
Filed: 1930-04-29
Abstract: 356,186. Screwing die-heads. JONES & LAMSON MACHINE CO., Springfield, Vermont, U.S.A.-(Assignees of Bysshe, E. T. ; 91, Summer Street, and Finn, R. R. ; 98, Wall Street, both in Springfield, Vermont, U.S.A.) April 29, 1930, No. 13224. Convention date, May 15, 1929. [Class 83 (iii).] Chasers.-Screw-cutting chasers, of the tangent type, have a number of concave surfaces on the grooved side so that the grooves on the chaser are in contact with the threads on the work over a definite arc, and the concavities may be brought into use successively on regrinding of the chaser. Each chaser of a set in a die-head has a plane gauging surface 2 for engagement with a corresponding surface on the head and is provided with a dovetailed projection 4, accurately ground and lapped to fit the head. Accurately formed ratchet teeth 6 on the projection 4 preferably co-operate with the gauging mechanism described in Specification 356,223 to allow the cutting edge 16 to be adjusted to the same position in the head after wear and regrinding. The work-engaging face is grooved at 3 at the correct thread angle, the teeth up to a being bevelled off to provide cutting teeth of gradually increasing depth whilst the remaining teeth are of full section and act as screwing guides only. The cutting teeth are provided with a series of concave surfaces 7 by means of a threaded lap of substantially the same diameter as the work, these teeth being formed originally outstanding from the guide teeth so that after lapping their deepest portions are in the same plane as the valleys of the guide teeth. The end surface 7 in engagement with the work enables all the cutting edges to meet the work tangentially even if the chaser is provided with top rake whilst the remaining cavities are used successively when the end one has been ground away. The guide teeth project beyond the cutting teeth so that their ends do not engage the work. In a modification the cavities 201, Fig. 8, extend across all the teeth and are formed by a lap 21 of larger diameter than the work 22 but arranged on an oblique axis as shown to preserve the same thread angle on the chaser. In this case also the guide teeth from a to the gauging face 210 project beyond the cutting teeth so that the guide teeth are out of contact with the work on their extreme ends. In a further modification each chaser consists of a disc 40, Fig. 10, cut away at 42 to provide a cutting edge 43 and secured by a central screw 44 to an angularly adjustable shaft 45 in the head, radial serrations 47 on the disc and shaft preventing relative rotation thereof. The shaft is adjusted angularly by a worm 49 to compensate for wear and grinding of the cutting edge. Cavities are formed on the cutting teeth only, as in Fig. 4, or on all the teeth as in Fig. 8, in each case the first teeth only being the cutting teeth. Fours discs 40 are preferably arranged around the work.
Patent GB-734889-A (GB)
Title: Improvements in or relating to low-pressure arc discharge tube circuit arrangements
IPC: H05B41/232
Filed: 1953-05-12
Abstract: 734,889. Control systems for space discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES,Ltd.. May 12, 1953 [May 15, 1952], No. 13232/53. Class 38.(4). In a circuit arrangement of two low-pressure, parallel operating discharge tubes 1, 2, such as fluorescent lamps, each having two activated main electrodes 11, 12 and 21, 22 and at least one interior auxiliary electrode 13, 23 connected to one main electrode, one tube 1 is serially connected with the whole of an inductance 3 across A.C. supply terminals 7, 8, the other tube 2 is serially connected with a capacitor 4, an inductance 5 and a part 6 of the inductance 3 across the supply terminals, and the reactor of the latter tube circuit which is most remote from the first inductance 3, i.e. inductance 5 or, as shown, capacitor 4, is serially connected across the supply with an auxiliary reactance of opposite sign to,such reactor, as shown a choke 9, whereby to shunt the series combination of the inductance part 6, the other tube 2 and the reactor of the same sign as the auxiliary reactance. The inductance 5 is magnetically separate from the inductance 3 and the positions of components 4, 5 may be reversed from that shown in which case choke 9 is replaced by a capacitor. The reactance of capacitor 4 exceeds the sum of those of inductance part 6 and inductance 5.
Patent GB-239266-A (GB)
Title: Improvements in or relating to means for discharging coal and other material from hoppers, bunkers and the like
IPC: B65G65/48
Filed: 1924-05-29
Abstract: 239,266. Mitchell, F. G., and Parker, L. P. May 29, 1924. Automatic-feed weighers fitted to storage hoppers.-The discharging apparatus of a coal &c. bunker is actuated by a motor which is controlled by hand-operated means. The bunker is arranged at one side of and above a railway track and discharges by means of a rotatable table d and a shoot s into the tender of a locomotive. The motor driving the table is controlled by a switch o placed within reach of the fireman of the locomotive. The hinged bottom s<1> of the shoot s is connected by a rope w to a pivoted lever t. A weight v is adjustable on the lever t and is set to permit the descent of the bottom s' when the receptacle contains the desired quantity of material. The free end of the lever t normally rests on and effects the closure of a switch that controls the motor independently of the switch o, so that when the lever rises the motor stops. After discharge, the bottom rises, the lever descends, and the motor is restarted. In a modification, the receptacle s may be suspended from the lever t and the hinged bottom may be held closed by a catch controlled by lever mechanism which is actuated by hand after the discharging apparatus has been stopped automatically. In a further modification, the table delivers into a self-righting tipping container suspended from a counterbalanced lever such as t, Fig. 3, and locked in the upright position by means which is released when the lever tilts. The release of the container and the reclosing of the motor circuit are effected under the control of time delay devices. The switch controlling the motor circuit is actuated by the return of the container to normal position. The main switch o may be actuated only by a special key belonging to each locomotive and this may cause the number of locomotives to be printed on a card on which the weight of coal delivered is also recorded. According to the Provisional Specification a valve in a discharge shoot. may be used instead of the table d.
Patent GB-1065805-A (GB)
Title: Shipping container
IPC: B65D90/06
Filed: 1965-03-29
Abstract: 1,065,805. Laminates. DOW CHEMICAL CO. March 29, 1965 [May 18, 1964], No. 13282/65. Heading B5N. [Also in Divisions B8 and F4] A rectangular shipping container is constructed from panels of composite sheet 30 comprising a polyurethane foam core 32 with a multilayer wood laminate or plywood sheet 35, 37 adhered to both faces and an abrasion-resistant surface coating of glass fibre fabric reinforced polyester or epoxy resin 42, 44 adhered to the external surfaces of -the sheet. Other 'foam plastics cores, e.g. styrene, -may be used. Certain hardboards, that is, impregnated cellulosic fibrous sheets may be used in place of the plywood.
Patent GB-401006-A (GB)
Title: Improvements in and connected with doctors of paper machines
IPC: D21G3/02
Filed: 1932-05-09
Abstract: 401,006. Doctors for paper machines &c. RUSSELL, A. N., 608, St. Joseph Street, Lachine, Quebec, Canada. May 9, 1932, No. 13298. [Class 96.] A doctor for paper-machines comprises a pair of slide bearings 18, Fig. 3, movable to and from the roll &c. 12 and supporting the ends of a shaft 15 on which the blade holder &c. is pivoted, stops 23a, 24 on the carrier 13 and on one of the bearings, holding the doctor in position and limiting its pivotal movement in one direction. The flexible blade 14 is held in the carrier 13 by pins 46, Fig. 7, in sockets 47 and a plate 45 grooved at 48 to house a notched strip of soft rubber &c. or spaced bow springs 50 bearing on the blade and secured to a metal strip 49. The doctor is weight-loaded, the carrier 13 having spaced bearings on the shaft 15 on the ends of which are pinions 21 meshing with racks 22 adjusted by screws 23 ; the guides 19 for the bearings 18 being on brackets 20 and attached to the carrier frame. The adjustable stop-screw 24 limits the gravitational tilting of the carrier 13 when the doctor is withdrawn from the roll, which may be effected by a piston 29 &c. actuated differentially. In the calender, shown in Fig. 1, each end of each cylinder 30 excepting those for the two lower rolls is connected to a common supply of compressed air &c., the outer end by branch pipes 32, valves 33, a header 31, and a valve 37, and the inner by a branch pipe 35 and a header 34. By operating the valves to connect the outer ends of the cylinders to the atmosphere or to compressed air &c., any or all doctors may be moved separately or together, into or away from their operative positions. The doctors for the lower two rolls are similarly actuated, both ends of their cylinders having connections to the header 34, the outer ends by valves 42.
Patent GB-730025-A (GB)
Title: Improvements in or relating to electric relay devices
Inventor: ELLIS NORMAN SADLER
IPC: H02H3/40
Filed: 1952-05-27
Abstract: 730,025. Inductors. REYROLLE & CO., Ltd., A. May 15, 1953 [May 27, 1952], No. 13415/52. Class 38 (2). [Also in Group XXXVII] The core of a reactor for voltage limiting purposes in a directional and impedance relay device (see Group XXXVII), has three limbs K, K<SP>1</SP>, K<SP>2</SP> with an air gap in each limb. The core is laminated and a small shunt path across each gap is provided by replacing two of the stampings by stampings K<SP>3</SP> of a different shape which bridge the gaps.
Patent GB-1145819-A (GB)
Title: Enclosures with outlet valves
Inventor: KERNAHAN ERIC FRANCIS JOSEPH
IPC: F16K13/00
Filed: 1965-05-12
Abstract: 1,145,819. Valves. ROLLS-ROYCE Ltd. 11 May, 1966 [12 May, 1965], No. 13554/68. Divided out of 1,094,231. Heading F2V. [Also in Division F1] A valve controlling outflow of pressure fluid through circumferential apertures 34 in a vessel wall comprises an annular strap 28 having adjacent end portions connected to a pair of cams 29 on an operating shaft 30 for contracting the strap to open the valve. Normally the fluid pressure holds the valve closed. As shown, the device constitutes a bleed of a gas turbine compressor in which a late stage communicates through holes 23 with a chamber 24. The wall of an apertured subchamber 25 retains the strap on the inside and there is a manifold 22 on the outside. A raised seating lip is provided round each aperture 34.
Patent GB-1261792-A (GB)
Title: METHOD OF POLYMERISING ETHYLENE, OPTIONALLY MIXED WITH OTHER alpha-OLEFINS
IPC: C08F10/00
Filed: 1969-03-14
Abstract: 1,261,792. Polymerizing ethylene. SCHOLVEN-CHEMIE A.G. 14 March, 1969 [20 April, 1968], No. 13616/69. Heading C3P. Ethylene is polymerized in the presence of a catalyst which is suspended or dissolved in an inert diluent and which comprises (A) the reaction and reduction product of a mixture of titanium (IV) and vanadium (V) compounds with an organoaluminium compound of the formula AlR 2 X, wherein R is a hydrocarbon group having from 2 to 6 carbon atoms and X is a halogen, alkoxy or mercapto group or hydrogen, and (B) an organometallic compound of Groups I to II of the Mendeleef Periodic System of elements, the concentration of the titaniumvanadium catalyst (A) being between 0À1 and 25 mg./l., the concentration of the organometallic compound (B) being between 10 and 100 mg./l. and the ethylene partial pressure being between 3 and 60 kp./square cm. In the examples ethylene and butylene are polymerized in the presence of catalysts prepared from npropyl titanate, vanadium oxychloride, diethyl aluminium chloride, triethylaluminium, diisobutylaluminium fluoride and titanium tetrachloride, heptane, hexane and hydrogen and the polymerization mixture irradiated with a Co-60 source.
Patent GB-383557-A (GB)
Title: Improvements in the manufacture of structural materials for bearings and other machine parts
IPC: C08J5/16
Filed: 1932-05-12
Abstract: In a process for the manufacture of a material for bearings and other structural members and comprising lubricant-impregnated fibrous material embedded in a substance, e.g. artificial resin or metal alloy of low melting point, the fibrous material is treated with a substance which is afterwards removed, at least partly, and replaced by a lubricant.  The fibrous material of vegetable, animal, mineral, or artificial fibres in any form is treated with a liquid solution, such as a soda or sugar solution, or with a substance in a viscous or pasty condition, and after being dried is embedded in the base material such as artificial resin or metal alloy.  The bearing or other article is then made from the resulting composition by pressing, stamping, turning, or other operation, after which the soda, sugar, or other substance in the fibrous material is removed and replaced by a lubricant.  This may be done, if soda or sugar is used, by dissolving the substance out by water and afterwards boiling the article in oil.
Patent GB-697793-A (GB)
Title: Improvements relating to beating engines for paper pulp
Inventor: MCNEILL ROBERT
IPC: D21D1/14
Filed: 1950-06-01
Abstract: 697,793. Paper pulp beating-engines. Mc- NEILL WINTERBURN INVENTIONS, Ltd. June 20, 1951. [June 1, 1950] No. 13682/50. Class 96. Paper pulp which is thrown off the roll 1 of a, beating-engine after leaving the region of the backfall 3 is repeatedly returned to the roll by a series of deflector plates 33 or ridges, vanes, or corrugations beneath the hood 4. The plates &c. may be adjusted at 36 and may be at progressively increasing angles to the horizontal. The beater may incorporate a valve 7 &c. as disclosed in Specification 697,789. The lining of the hood may be of wood, metal, basalt lava, or stone &c.
Patent GB-1496989-A (GB)
Title: Photographic silver-halide emulsions
IPC: G03C1/09
Filed: 1976-04-05
Abstract: 1496989 Photographic emulsion sensitizer FILMFABRIK WOLFEN VEB 5 April 1976 [15 April 1975] 13692/76 Heading G2C In a process for the manufacture of a photographic silver halide emulsion there is added, prior to or during the step of digesting the emulsion, as a chemical sensitizer, an asymmetric disulphide of the general Formula in which each of A and B, which may be identical or different, denotes an alkyl, aryl or aralkyl radical which radicals are unsubstituted or are substituted as indicated in the Formula; each of W and Z, which may be identical or different, denotes an unsubstituted amino group, a mono- or dialkylamino group, a trialkylammonium group, a quaternary ammonium group, a betaine group, or a mono or diacylamino group; each of X and Y, which may be identical or different, denotes a carboxy group or an alkoxycarbonyl group; and each of a, b, c and d, which may be identical or different, denotes 0, 1, 2 or 3 with the proviso that each of the sums a + d and b + c should be at least 1; with the proviso that in at least one of the pairs of symbols A/B, W/Z, X/Y, a/d and b/c the two symbols have different meanings. A noble metal compound or a reducing agent can be added as an additional sensitizer. A number of leucine derivatives are listed as examples of suitable compounds.