baber/WOPTO huggingface dataset:
Patent GB-1365864-A (GB)
Title: Treatment of sludge
IPC: C02F1/10
Filed: 1971-10-04
Abstract: 1365864 Treating sludge HYDRO CHEMICAL & MINERAL CORP 4 Oct 1971 [12 Oct 1970] 28788/73 Divided out of 1363449 Heading C1C [Also in Division C5] In a method of treating sludge, e.g. municipal sewage wastes and paper processing wastes, utilizing direct contact liquid-liquid heat exchange, sludge under pressure entering through a conduit 242 is heated as it passes downwardly through a first heat exchanger 200 by direct contact with a countercurrent flow of oil. The heated sludge is passed into a holding vessel 249 and then downwardly through a second heat exchanger 201 to be cooled by direct contact with upwardly flowing oil, the cooled sludge thereafter being separated, e.g. by settling, centrifuging or vacuum filtering into its solid and liquid components in a separator 250. The oil is continuously recycled between the first and second heat exchangers 200 and 201, the oil giving up heat to the sludge in the first exchanger and recovering heat from the sludge in the second. Fats or fatty materials, such as lipids, which become dissolved in the oil are separated therefrom by directing part of the oil through a two stage oil flash evaporation column 202 and an oil condensing device 203, fat-free oil being returned for reuse via conduits 240 and 264 and a pump 266. The twostage evaporation column 202 comprises an upper first stage flash chamber 204 and a lower second stage flash chamber 206 from which a plurality of tubular passages 214 extend downwardly to a fat residue settling chamber 216. The residue exits via a valve 224 into a collection chamber 226. An oil vapour conduit 218 connects the upper region of the first stage chamber 204 to a condensing chamber 220 surrounding the passages 214, the condensed vapours in chamber 220together with oil vapours produced in the second stage flash chamber 206 being transferred via lines 238 and 236 to the upper region of the oil condenser 203. In a modification (see Fig. 2, not shown), sludge after having been heated in the first heat exchanger is sprayed into a pair of series arranged flash evaporation chambers (270, 274) to remove the water content therefrom prior to being cooled in the second heat exchanger, the vapours produced in the flash evaporation chambers 270 and 274 being transferred to the two successive condensing stages (278 and 280) of a condenser column (283). In a further embodiment (see Fig. 3, not shown) heated sludge from a first heat exchanger (302) is mixed with heated oil, the resulting oilsludge mixture being passed into multistage flash evaporation and condensation apparatus (304 and 306) to remove water from the sludge; the mixture is then passed through filtration apparatus (316) to separate the oil from the sludge solids.
Patent GB-1516323-A (GB)
Title: Spraying machines
IPC: C23C4/12
Filed: 1975-07-09
Abstract: 1516323 Coating by spraying UNION CARBIDE CORP 9 July 1975 [10 July 1974] 28837/75 Heading B2L To spray the inside of an irregularly shaped body H mounted for rotation about an axis O and reciprocable therealong a spray gun D is mounted on a cam driven linkage L 1 -L 7  so that the linear speed of the surface to be coated relative to the gun, the angle of incidence of the spray and the distance of the spray head from the surface are all kept constant by cams C 3 , C 2  and C 1  respectively.
Patent GB-967235-A (GB)
Title: Method of pressing and hardening insulated winding coils impregnated with artificial resin
IPC: H02K15/12
Filed: 1963-07-22
Abstract: 967,235. Moulding insulated coils. BROWN, BOVERI & CO. Ltd. July 22, 1963 [July 24, 1962], No. 28865/63. Heading B5A. In the moulding of the insulation of stator windings of rotating high voltage machines, e.g. turbogenerators, the winding bars and the moulds are preheated. The bar may be heated by direct current and the mould by induction by alternating current superposed on the bar.
Patent GB-1361621-A (GB)
Title: Feeder withdrawal devices in circular knitting machines
IPC: D04B15/58
Filed: 1972-05-30
Abstract: 1361621 Knitting machines BENTLEY ENG CO Ltd 30 May 1972 [19 June 1971] 28888/71 Heading D1C In a single cylinder circular knitting machine the yarn feeders, mounted on feeder holders at each knitting station may be moved away from the needles individually or all simultaneously, pneumatically or electrically. Compressed air in a pipe 35 moves a piston and rod 31 attached to a holder 19 causing the holder to pivot about a bolt 18 thus lifting the group of feeder arms 20. Each feeder arm has a toe 22 which follows a cam in a cam stack 23. An air valve (Figs. 4, 5, not shown) may control the air inlet to the pipe 35 which is  common to all the pistons, or a group of valves (Figs. 6, 7, not shown) may control the pistons individually. In a modification a solenoid may replace each air piston, and electrical switching is used to control movements of the feeders.
Patent GB-504559-A (GB)
Title: Improvements in or relating to the manufacture of electrolytic condensers
IPC: H01G9/055
Filed: 1937-10-22
Abstract: 504,559. Distilling acids. HUNT, Ltd., A. H. (Solar Manufacturing Corporation) Oct. 22, 1937, No. 28918. [Class 32] [Also in Group XVI] In etching aluminium foil by passing it at' n uniform rate through a bath of hydrochloric acid containing in solution aluminium chloride in an amount from 05 to 30 per cent by weight of the solution, the concentration of the etching bath is kept constant by passing solution from the bath through a valve-controlled pipe 20 to a heated still 23, the acid vapours passing to a condenser 26 and from thence to a mixer 31 containing a helical partition 31<1>, from which it is returned to the etching bath by a pump 32 and pipe 21. Fresh aluminium chloride may be supplied, e.g. at the beginning of the etching operation, through a hopper 33 leading into the mixer 31. The etching bath is kept at an acid strength of between 5 to 25 per cent and at a temperature between 50 and 90‹ C. Specifications 440,221 and 448,163, [both in Group XXXVI], are referred to.
Patent GB-800213-A (GB)
Title: Process for the hydrogenation of carbon monoxide
IPC: C07C1/04
Filed: 1955-10-11
Abstract: Carbon monoxide is hydrogenated in the presence of a fixed-bed particulate catalyst which may be an iron catalyst by a process which comprises removing dust from the catalyst particles, impregnating them with normally solid hydrocarbons in a liquid phase, the catalyst being impregnated with an amount of the hydrocarbons constituting from 5-60 per cent by weight of the catalyst so that substantially no agglomeration of individual particles occurs, employing the impregnated catalyst in the hydrogenation in a layer of a depth of at least 5 metres, and using gas velocities which are sufficient to ensure adequate transfer of the heat of reaction.  Preferably the hydrocarbon is used in an amount of 5 to 60 per cent of the weight of the catalyst and may be applied by impregnating the catalyst either with molten hydrocarbon or with a solution of a solid hydrocarbon in a lower boiling liquid hydrocarbon, the solvent being evaporated. The gas velocity may be greater than 60 cms. per second and is preferably greater than 1.30 metres per second.ALSO:Carbon monoxide is hydrogenated in the presence of a fixed-bed particulate catalyst which may be an iron catalyst by a process which comprises removing dust from the catalyst particles, impregnating them with normally solid hydrocarbons in a liquid phase, the catalyst being impregnated with an amount of the hydrocarbons constituting from 5-60 per cent by weight of the catalyst so that substantially no agglomeration of individual particles occurs, employing the impregnated catalyst in the hydrogenation in a layer of a depth of at least 5 metres, and using gas velocities which are sufficient to ensure adequate transfer of the heat of reaction.  Preferably the hydrocarbon is used in an amount of 5 to 60 per cent of the weight of the catalyst and may be applied by impregnating the catalyst either with molten hydrocarbon, or with a solution of a solid hydrocarbon in a lower boiling liquid hydrocarbon, the solvent being evaporated.  The gas velocity may be greater than 60 cms. per second and is preferably greater than 1.30 metres per second.
Patent GB-604476-A (GB)
Title: Improvements in or relating to laminated light transmitting material
IPC: G02B5/30
Filed: 1945-11-01
Abstract: 604,476. Compound transparent sheets. INTERNATIONAL POLAROID CORPORATION: Nov. 1, 1945, No. 29000. Convention date. Nov 6, 1944. [Class 140] [Also in Group XX] A light-polarizing element such as a head-lamp lens includes a layer of polarizing material 22 and a protective cover 25 of glass subdivided into contiguous component pieces, 26, 30, each bonded to the polarizing layer by transparent adhesive 24. A further layer of glass 18 and a lens 12 may be secured by means of adhesive layers 16 and 20. The polarizing layer may be polyvinyl alcohol partly dehydrated by heating as described in Specification 548,759. The adhesive may be a polvvinyl acetal such as the butyral, or an acrylic or methacrylic resin The layer 25 may be subdivided after adhesion to the polarizing layer, and the cracks between the adjacent component pieces may be filled with opaque or transparent adhesive, e.g. butyl methacrylate polymerized in situ. Layer 18 may be similarly subdivided.
Patent GB-375170-A (GB)
Title: A machine for moistening and cooling yarns and fabrics
IPC: D06B1/00
Filed: 1931-10-19
Abstract: 375,170. Coating webs. CœSTERS, P. W., 131, Volksgartenstrasse, Gladbach, Munich, Germany. Oct. 19, 1931, No. 29009. Convention date, Oct. 28, 1930. [Class 140.] Apparatus for moistening and cooling yarn and fabric comprises a middle roller b having an engraved surface; and upper and lower pressure rollers c, a, having resilient surfaces, preferably of rubber, and being independently pressed against the middle roller by means of weighted levers. The fabric dis passed between the middle roller b and the upper roller c, and liquid is supplied to the roller b by the lower roller a which dips into liquid in a trough e. The supply of liquid is varied by adjusting the pressure of the roller a on the roller b, and also by the nature of the engraved surface of the latter, and the amount of pressure on the fabric is regulated by adjusting the downward pressure of the roller c.
Patent GB-709008-A (GB)
Title: Floating dry dock
IPC: B63B1/02
Filed: 1950-11-27
Abstract: 709,008. Floating dry dock. ENGSTRAND, G. C. Nov. 27, 1950 (Nov. 26, 1949], No. 29010/50. Class 68(2) A floating dry dock 1 comprises a pontoon hull having hollow wing walls enclosing lateral chambers 2, 2<SP>1</SP> to be flooded, a central longitudinal watertight bulkhead 6 and a longitudinal watertight bulkhead 6a on each side of the central bulkhead forming bottom chambers 3, 31 to be flooded between the bulkheads and the top and bottom of the hull, buoyancy chambers 4, 4<SP>1</SP> in the hull between the wing walls and the bottom chambers and located at a distance from the sides of the hull. and conduits 17, 17<SP>1</SP> connecting the lateral chambers 2, 2<SP>1</SP> to the bottom chambers 3, 3<SP>1</SP>. The sides of the dock are provided with a spaced series of mooring spuds 5, 5<SP>1</SP>, and the pier 7 has spaced short mooring spuds 9 allowing for tidal and operative level variations. The double mooring jaw 8 comprises a jaw 10 which slides on the dock spud and is hinged by pivot shaft 14 to a jaw 11 which slides on the pier spud 9. When the dock is used for regular ship service the jaw 11 is locked to the spud 9 by locking pins 12 and the dock lists about shaft 14. The chambers 4, 4<SP>1</SP>, which contain the pump gear are preferably larger than is necessary to support the dock weight, and water is pumped into the side chambers when the empty dock is being submerged. Fig. 2 shows the dock tilted for bottom repair, the dock weight W and the water masses W<SP>1</SP> and W" being supported by the buoyancy forces of chamber 4<SP>1</SP> and the force B of that part of chamber 3<SP>1</SP> below the water line. The hull may be rectangular in cross section.
Patent GB-379137-A (GB)
Title: Improvements in or relating to radio receivers and control means therefor
IPC: H03J1/08
Filed: 1931-10-19
Abstract: 379,137. Wireless receiving apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Rabkin, M. A. ; 303, Rand Street, Camden, New Jersey, U.S.A.) Oct. 19, 1931, No. 29054. Convention date, Oct. 17, 1930. [Class 40 (v).] In a wireless receiving set a number of electrical characteristics, e.g. two, tuning and volume or selectivity, are controlled, continuously and independently, by a single knob the movement of which in one manner or direction, controls one characteristic, and in another manner or direction, another characteristic. A sphere 7, Figs. 1 and 2, having serrations or teeth or grooves in circular tracks on its surface, is mounted for universal movement at 11, 11<1> on a ring 8 pivoted at 10, 10<1> on the panel of the set. Teeth on one part of the sphere mesh with a toothed rack 17 pivoted on the horizontal shaft 2 of ganged condensers 6 effecting tuning. Rotation of the sphere in a plane parallel to that of the rack 17 causes rotation of the shacft 2. On the diametrically opposite face of the sphere the teeth are engaged by a sliding rack 13 the length and plane of movement of which is at right-angles to that of the rack 17. The rack 13 slides over a guide 21 and is provided with a stud 24 bearing on a potentiometer resistance wound on a bar 22, the upper face of the rack 13 engaging a contact bar 26. The resistance 13 is connected in the aerial circuit and the conductor bar 26 is connected to the grid of the first high frequency valve in a receiver using several stages of untuned high frequency amplification and an aperiodic aerial. The sensitivity or volume is thus controlled by rotating the sphere in a horizontal plane. Combined tuning and volume adjustment is obtained by rotating the sphere in a plane intermediate between the horizontal and vertical planes. In a modification, not shown, the condenser shaft carries a lateral extension integral with the web of a circular potentiometer resistance, the web forming a bearing for a rotatable shaft carrying a wiper, which bears on the resistance, and a control knob which may either be rotated to control volume, or moved vertically about the axis of the condenser shaft to effect tuning control. In a further modification a control knob is integral with a divided shaft, the two parts of which are resiliently coupled, the part remote from the knob being connected to a pulley which drives the condenser shaft through a cord and pulley gear. A horizontal arcuate resistance element fitted on the panel is engaged by a contact on the knob part of the shaft so that movement of the knob in a horizontal plane, in a slot in the panel effects volume control whilst flexing the resilient shaft coupling. A contact bar like that at 26 in Fig. 1 serves for connection to the grid of the first valve. In this modification a lamp coacting with a movable arcuate scale, provided with slots and connected to the condenser shaft, gives indication of tuning. The resistance element may, alternatively, control filament heating.
Patent GB-646811-A (GB)
Title: Improvements relating to marking machines
IPC: A43D95/14
Filed: 1947-10-31
Abstract: 646,811. Printing-machines. LOTUS, Ltd., BOSTOCK, G. S., and ADAMS, W. Oct. 31, 1947, Nos. 29068/47 and 12031/48. [Class 100 (ii)] In a machine for printing on blanks of boots, shoes &c. wherein a base, presenting a marking table 10 and an inking pad carrier 11 in a plane higher than the table 10, supports a platen 17 connected thereto by parallel motion linkage 16, the tension spring means such as 22, provided to restore the platen to mid-position from the inking or marking positions, is so arranged as to store energy to cause the platen when freed from one extreme position to rebound to the other. As shown, two springs 22, within the base and each near one of its sides, act on ears 201 extending from sleeves secured to a shaft 15 rigidly connected to the rear members of the linkage 16; the springs may be adjusted by nuts 24; the platen is moved by its hand bar 172 to the marking position shown in chain lines, and on release the springs 22 withdraw it sufficiently fast for its inertia to carry it over to the inking pad 13 from which it returns to the mid position ready for the next marking stroke. Additional springs may be arranged to act on the shaft 14. In a modification the springs 22 are outside the base and are connected to eccentric pins on plates clamped to the rear members of the linkage 16. In a further modification springs attached to both the pivot pins 171 on each side of the platen extend downwardly and toward each other to the tops of posts upstanding from lateral extensions of the base, these posts being set closer together than the shafts 14, 15 and being offset laterally to each other to avoid fouling of the springs. According to the second Provisional Specification bolts screwed radially into the shaft 15 replace the ears 201 and their sleeves.
Patent GB-389167-A (GB)
Title: Improvements in and relating to the propulsion and steering of ships
IPC: B63H11/00
Filed: 1931-10-20
Abstract: 389,167. Propelling and steering by water-jets, RANK, F., BECKER, A., 20, Michelsberg, and AMMON, T., 18, Michelsberg, Hersbruck, Germany. Oct. 20, 1931, No. 29105. Convention date, Oct. 20, 1930. [Class 114.] In installations for propelling and steering ships by water-jets, centrifugal pumps 3, 4, the suction pipes 1, 2 of which extend to opposite sides of the bows, discharge into nitches 5, 6 in the ship's sides, which are corrugated as shown. At the stem the centrifugal pumps 17, 18, with suction pipes 15, 16, discharge on either side of a central jet supplied by the pump 12, this arrangement increasing the eddy action at the stern. For steering purposes one or more of the pumps may be stopped or reversed and hinged plates 21, 22 are provided at the sides. The pumps are coupled with aligned electromotors.
Patent GB-1186833-A (GB)
Title: Improvements in or relating to the Propogation of Roses
Inventor: GEYTENBEEK CORNELIS
IPC: A01G1/06
Filed: 1968-06-19
Abstract: 1,186,833. Propagation of roses. A. MEILLAND. 19 June, 1968 [19 June, 1967], No. 29147/68. Heading A1E. A method of propagating roses by grafting them, as a 'veneer', on to cuttings of an understock such as Indica Major is characterized in that the understock cuttings are unrooted, uncallused and completely de-eyed before grafting. The grafted cuttings are placed in an artifical medium for root formation, soaking in melting wax, &c., sealing the top cut and the graft cut 4 against infection. The grafting operation may be performed on a rotary table. Sterilized cuttings may be stored at 1C. before grafting.
Patent GB-726411-A (GB)
Title: Improvements in thermionic valve amplifiers having an indicating device and particularly for use with magnetic sound recorders
Inventor: BOSTON DAVID WHITEHEAD
IPC: H03F1/04
Filed: 1953-10-22
Abstract: 726,411. Voltage measurements. BRITISH ACOUSTIC FILMS, Ltd. Oct. 22, 1953, No. 29180/53. Class 37. [Also in Group XL (c)] The sensitivity of a discharge, e.g. neon, lamp I, used to indicate a particular output level in an audio amplifier, is increased by supplying it with a bias of supersonic frequency. In a magnetic sound recorder the bias is derived over a condenser C1 from an oscillator V3 supplying high-frequency bias to a recording or erasing head. The bias may be applied to an additional electrode which, Fig. 2 (not shown) may be external to the discharge lamp. In this case it may be arranged to produce a residual glow when the apparatus is in working condition. A second discharge lamp IA may be connected across the amplifier output, being without a bias and used to indicate overload conditions.
Patent GB-758015-A (GB)
Title: Improvements relating to apparatus for distributing seeds, fertilisers and other powdered and granular substances
IPC: A01C7/20
Filed: 1953-10-23
Abstract: 758,015. Agricultural distributers. PIKE, R. H., and BALLINGER, R. Oct. 11, 1954 [Oct. 23, 1953], No. 29328/63. Class 6 (1). A flexible tube which may be used in an agricultural distributer for seeds, fertilizers, &c., is made of resilient material, such as rubber, and has a cylindrical bore 3 together with a corrugated outer surface 6. The smooth ends 4 and 5 of the tube may be reinforced with metal linings, the funnelshaped end 4 being adapted for connection to the outlet of a hopper and the end 5 with a smooth tapering outer surface for connection to a member from which the seeds pass to the ground.
Patent GB-1452245-A (GB)
Title: Torque coatings for threaded fasteners
IPC: C10M111/04
Filed: 1975-07-14
Abstract: 1452245 Coated screw fasteners ILLINOIS TOOL WORKKS INC 14 July 1975 [15 July 1974] 29446/75 Heading B2E [Also in Division F2]  Screw-fasteners having an enlarged head and an elongated threaded shank are coated at least on the shank, and preferably on the underside of the head, with a coating comprising a resin carrier with abrasive grit particles of aluminium oxide, pumice, silicon carbide or silicon dioxide embedded therein, the particles being retained in the carrier when the fastener is driven into a workpiece to increase the friction between the fastener and the mating surfaces of the workpiece. The resin carrier is preferably nitrocellulose, an acrylic resin, vinyl chloride resin and/or an alkyd resin, applied in the form of a solventdiluted lacquer having the abrasive particles in suspension. The fastener may be pre-plated, e.g. with zinc, before coating.
Patent GB-1100573-A (GB)
Title: Polymerization and preparation of solutions of wholly aromatic polyamides
IPC: C08K5/5333
Filed: 1966-06-30
Abstract: The invention comprises solutions of wholly aromatic polyamides in organic compounds of formula <FORM:1100573/C3/1> where R is a C1- 6 alkyl group, R1 is a C1- 6 alkyl group or the two R1 groups together are a C1- 4 alkylene radical and X is O or S.  They may be produced by (1) dissolving a diamine of formula NH2Ar(CONHArNHCOAr)nNH2 or NH2Ar(NHCOArCONHAr)NH2 where Ar is a C6- 15 aromatic radical and n is O or 1 in the organic compound, (2) cooling the solution to 10 DEG to - 20 DEG  C., (3) adding an aromatic dicarboxylic halide of formula: X1COArCOX1, where X1 is halogen, and (4) stirring the solution.  A base may be present, e.g. Et3N or pyridine.  Polyamides specified include a condensate of m-phenylene diamine and isophthalic acid and condensates of N,N1-bis(m-aminobenzoyl) - m - phenylene diamine and terephthalic acid, naphthalene - 2,6 - dicarboxylic acid, biphenyl - 4,41 - dicarboxylic acid and isophthalic acid.  Organic phosphorus compounds specified include dimethyl methyl phosphonate, diethyl methyl phosphonate, diethyl ethyl phosphonate, dipropyl propyl phosphonate, dibutyl butyl phosphonate and cyclic ethylene ethyl phosphonate.  The products may be made into fibres.