baber/WOPTO huggingface dataset:
Patent GB-605241-A (GB)
Title: Improvements in and relating to heat exchangers for flowing liquids or gases
IPC: F28D9/04
Filed: 1945-12-18
Abstract: 605,241. Tubular heat - exchange elements. VISSER, J. M. Dec. 18, 1945, No. 34328. Convention date, Oct. 9, 1943. [Class 64(iii)] In a. heat-exchanger for fluids in flow comprising an inner tube 2, through which flows one of the heat-exchange fluids, a helical wall 3 extending around the outer surface of the tube, and an outer tube 1 surrounding the inner tube and helical wall to. form a helical path for the other fluid, the helical wall is provided with ducts 4 communicating at their ends with the Spaces on opposite sides of the wall. The inlets of the ducts 4 may be located near the outer circumference of the wall 3 and the outlets near the inner circumference of the wall 3.
Patent GB-872033-A (GB)
Title: Polyester film materials
IPC: C08L67/00
Filed: 1959-10-09
Abstract: Hydrophobic films composed of polyesters formed by reacting (1) at least one dihydric alcohol of the formula HOCH2-Wn-CH2OH (where W is methylene, polymethylene or alkylsubstituted polymethylene of 1-8 carbon atoms or a cyclo-aliphatic radical of 5 or 6 carbon atoms and n is zero or one) and (2) a dicarboxylic acid of which at least 80 mole per cent is aromatic dicarboxylic acid and wherein at least 15 mole per cent is terephthalic acid, are contacted with a solution comprising 82-98,8 parts by weight of sulphuric acid, 1-14,5 parts by weight of water and an amount of chromic acid-yielding compound equivalent to 0,1-4,0 parts by weight of chromic oxide until a hydrophilic surface is formed on the film, and the treated surface of the film is then immediately washed with water until free from the solution.  The film may be contacted with the solution for about 0,1 second to about 60 seconds and preferably from 1-15 seconds.  The temperature of the solution may be 0 DEG -60 DEG C. or more, preferably 5 DEG -30 DEG C.  If the treated surface is to be transparent, a preferred solution consists of 84-87 parts by weight of sulphuric acid, 9,4-12,4 parts of water and an amount of a chromic acid yielding compound equivalent to 0,5-2,7 parts of chromic oxide. In a preferred solution for preparing translucent treated surfaces the corresponding proportions are 87,4-96,0, 2,0-5,6 and 1,0-3,6. The preferred chromic acid-yielding compound is sodium dichromate, but chromium trioxide or water-soluble chromates may also be used. Any yellow colour present on the treated surfaces may be removed by contacting them with a 0,5%-30% aqueous alkali metal hydroxide solution at 5 DEG -80 DEG C. for about 10-60 seconds when a 10%-20% solution is used, whereafter the film is washed with water and dried. Specifications 578,079, 662,793, 688,528, 718,422, 741,441, 741,470, 766,290, 786,176 and 804,069 are referred to.
Patent GB-1457160-A (GB)
Title: Syntatic foam
IPC: C08J9/32
Filed: 1974-08-05
Abstract: 1457160 Syntactic copolyimide foams containing hollow or solid filler UPJOHN CO 5 Aug 1974 [20 Aug 1973] 34402/74 Headings C3C and C3R A syntactic foam contains hollow or solid spherical filler elements and consists of spherical relatively low density solid or hollow filler particles (i.e. microspheres and microballoons respectively) of average major diameter 10- 500 Á embedded in a polyimide which is a copolyimide having the recurring unit (a) wherein in 10-30% of the units R is and in the remianing units R is or mixtures thereof; or (b) wherein in 75-100% of the units R<SP>1</SP> is and in the remaining units R<SP>1</SP> is where X is CO, O or SO 2 ; and wherein in 10- 35% of the units R<SP>2</SP> is (see Formula II above) and in the remaining units R<SP>2</SP> is (see Formulµ III and IV above) or mixtures thereof. In the examples a copolyimide made by reacting benzophenone 3,3<SP>1</SP>,4,4<SP>1</SP> - tetracarboxylic acid dianhydride with a mixture of toluene diisocyanate and 4,4<SP>1</SP>-methylenebis(phenyl isocyanate) was dissolved in N-methylpyrrolidone and then blended with glass microballoons, graphite microspheres, aluminium granules, molybdenum sulphide, glass beads and/or phenol-formaldehyde resin microballoons, moulded into a preform and then cured by heating to produce syntactic foams. The filler may also comprise aluminium microspheres.
Patent GB-1033888-A (GB)
Title: Improvements in or relating to electromechanical filters of channel separation filter type
IPC: H04B3/42
Filed: 1964-08-24
Abstract: 1,033,888. Electromechanical filters. KOKUSAI DENKI KABUSHIKI KAISHA. Aug. 24, 1964 [Aug. 23, 1963], No. 34526/64. Heading H3U. A filter having a common input terminal A for both speech and ringing frequencies separates these two inputs so that speech emerges at output B having a bandwidth f 1  to f 2  and the ringing output emerges at C having a narrow band width f 3 . The input at A is applied to one end of piezo-electric transducer 5 through a matching circuit 1, 2, 3, 4, the other end of the transducer being connected by a coupling line 6a to a first one of a number of longitudinal bar resonators 7 serially connected by further lines 6a. The lines 6a have a length #0/4 and the resonators 7 a length #0/2, where #0 is the wavelength of the centre frequency f 0  of f 1  to f 2 . The output of this filter is passed through a transducer 10 and matching circuit 1 ... 4 to the terminal B. The other end of the transducer 5 is also connected by a coupling line 6b to a longitudinal bar resonator 8, this resonator together with further resonators 8 and resonators 9 being serially connected by further coupling lines 6b. The length of the lines 6b and resonators 9 is #3/4 and the length of resonators 8 is #3/2, where #3 is the wavelength of the ringing frequency f 3  applied to a transducer 11 connected through a matching circuit 1 ... 4 to terminal C.
Patent GB-487169-A (GB)
Title: Improvements in or relating to the lubrication of superchargers of internal combustion engines
IPC: F16N13/20
Filed: 1936-12-19
Abstract: 487,169. Lubricating ; centrifugal pumps. THOMSON & TAYLOR (BROOKLANDS), Ltd., and SAMPIETRO, A. C. Dec. 19, 1936, No. 34934. [Class 12 (iii)] [Also in Group XXVI] On the high speed shaft 3 of the supercharger blower of an internal-combustion engine is mounted the rotor 5 of a lubricant pump. The shaft 3 is driven from a shaft 1 by worm and worm-wheel gearing. Lubricant is drawn by the pump 5 through a pipe 10 and is discharged through a pipe 11 and nozzles 12, 13, to the bearings 7, 8, and speed increasing gearing 2. Drainage oil returns to the pump suction through a pipe 16. The presence of the oil pump 5 tends to lessen torsional vibration of the shaft 3. If the blower casing is fixed rigidly to the engine and the latter is supported on elastic mountings, the gyroscopic action of the blower rotor will check engine vibrations.
Patent GB-339760-A (GB)
Title: Manufacture of basic bismuth salts of organic mercury compounds
IPC: C07F9/94
Filed: 1929-11-15
Abstract: 339,760. Groves, W. W., (I. G. Farbenindustrie Akt.-Ges.). Nov. 15, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 4, 1929]. Organo - arsenic compounds. - 4-Allyloxy-3- acetylaminobenzene-1-arsenic acid is obtained by treating 3 - acetylamino - 4-hydroxybenzene-1-arsonic acid with allyl bromide in alkaline solution. 3 : 4-Thiobenzimidazole-1-arsonic acid is made by interaction of potassium xanthate with 3 : 4- diaminobenzene-1-arsonic acid to give 3 : 4-benzthioimidazole-1-sulpharsonic acid and treating the latter with freshly-precipitated lead carbonate. Organo-mercury compounds. - 3 : 4-Mercurythiobenzimidazole-1-carboxylic acid is made bv interaction of 3 : 4-thiobenzimidazole-1-carboxylic acid (see Specification 225,875) with an inorganic mercury salt. 1. : 2-Mercury-thiobenzimidazole-4- sulphonic acid is prepared by treating 1 : 2- diaminobenzene-4-sulphonic acid with sodium xanthate to give 1: 2-thiobenzimidazole-4-sulphonic acid, and combining the latter with an inorganic mercury salt. m-Mercury-allylthiourea-benzoic acid is obtained by interaction of m-allylthioure.a-benzoic acid with an inorganic mercury salt. Organo-mercury-arsenic compounds. - 3: 4- Mercury-thiobenzimidazole-1-arsoni cacid is prepared by heating 3 : 4-thiobenzimidazole-1-arsonicacid with an inorganic mercury compound.
Patent GB-1454058-A (GB)
Title: Dimers of succinyl-succinic acid and esters thereof their preparation and their use in preparing linear polyesters
IPC: C08G63/60
Filed: 1974-08-08
Abstract: 1454058 Dicyclotetracarboxy tetrahydroxy dodecadienes or esters thereof CIBA-GEIGY AG 8 Aug 1974 [9 Aug 1973] 35022/74 Heading C2C Anti - tricyclo[4.4.0<SP>1,6</SP>.0<SP>7,12</SP>]1,4,7,10 - tetracarboxy - 3,6,9,12 - tetrahydroxy - dodeca- 3,9-diene, or esters thereof, of Formula I wherein R represents hydrogen or an aliphatic or aromatic radical are prepared by irradiating succinyl-succinic acid or a diester thereof of the formula in the crystalline state with ultra-violet light having a wavelength of 200 to 300 NM or with gamma radiation. Linear polyesters may be prepared from the compound of Formula I by (a) condensing it with itself in the melt particularly in the presence of an acid catalyst, or (b) condensing it together with a dicarboxylic acid chloride in the molar ratio of 1 : 1 with the splitting off of hydrogen chloride.
Patent GB-957730-A (GB)
Title: Improvements in or relating to multitubular heat exchanger
IPC: F28D7/08
Filed: 1960-10-13
Abstract: 957,730. Multitubular heat-exchangers. P. LEGRAND. Oct. 13, 1960 [Oct. 14, 1959], No. 35184/60. Heading F4S. A multitubular heat-exchanger comprises tubes 2 which are arranged substantially in zig-zag and side-by-side relation inside a flat element 1 and in several layers A, B, C, D ... parallel to the main flat faces 3 and 4 of the casing of the element. An inlet 7 and an outlet 8 are connected respectively to two flared portions 5 and 6 forming headers and the tubes 2 are curved inside these headers so as to diverge and be uniformly distributed in section in these headers. In operation, the nests of tubes are arranged in groups, each group comprising an equal number of tubes from each layer. The tubes for each group are so chosen that the group extends substantially over the whole width I of the heat-exchanger. The heatexchanger operates in a cyclic manner, one group of tubes at a time.
Patent GB-465835-A (GB)
Title: Improvements in or relating to cans or like containers
Filed: 1935-12-19
Abstract: 465,835. Seamed and soldered joints. CONTINENTAL CAN CO., Inc. Dec. 19, 1935, No. 35257. Convention date, May 3. [Class 83 (iv)] The edge of a blank 1 which forms the inner hook of the soldered-seamed joint of a can body is formed with slits 5, 6, hooks 8, to interlock with the edge 3, being formed only in the parts 8b outside these slits, the part 9 between the slits being in lapping engagement with the body 1, Fig. 5. The edge 3 is hooked uniformly along its length.
Patent GB-523400-A (GB)
Title: Improvements in or relating to vibrating or jigging tables for knocking-up sheets of paper
IPC: B06B1/04
Filed: 1938-12-03
Abstract: 523,400. Sheet delivery-apparatus. JONES, K. W. Dec. 3, 1938, No. 35299. [Class 100 (i)] The accurate piling of sheets in succession is assisted by a knocking-up device which is operated by the vibration of an electro-magnetic armature or core which is adapted to impart a high rate of vibration to the side lays 2, Fig. 1, or 2, 2a, 3, 3a, Fig. 5, associated with a pile table, or to the table itself as shown at 14, Figs. 7 and 10. The armature 9, Fig. 1, may be vibrated in unison with the periodicity of an alternating current which energizes the electromagnet, or an interrupter may be arranged in the circuit of a direct current to control the rate of oscillation of the armature. The lay 2, Fig. 1, is connected to a pivoted spring reed 8 to which the armature is secured, and the lays 2, 2a, 3, 3a, Fig. 5, are similarly operated and are adjustably mounted by means of slotted brackets 12 and screws 13. When the table is arranged to be vibrated, the reed 8, Fig. 7, operated by the armature 9 of an electromagnet 6 is arranged diagonally of the pile table 14, which is fitted with fixed lugs 2, 3, and the extent of vibration can be controlled by means of a weight 20 which is mounted on an arm 21 adjustable about a pivot which lies on the diagonal of the table. The table is mounted on a ball and socket joint 18, 19 supported by a pedestal 15 fitted with a rubber base 16. The table 14 can be supported by two reeds. 8 carried by armatures of magnets mounted on an adjustable base. In Fig. 10 the table 14 is carried by. springs 29, 30 from a base 24 which is carried at its ends by telescopic mounts 28 which permit the inclination of the table to be adjusted. The lower end of the table is connected by a bracket 32 to a rod 31 reciprocated by a reed 8. An adjustable weight 33 on the rod 31 permits of variations in the periodicity of the vibrations. When two electromagnets are energized by direct currents and interrupters, the interrupters may act at differing regular or irregular, intervals. In a further modification table is mounted on a reed which is arranged on an armature which is alternately attracted by the different electromagnets between which it is arranged.
Patent GB-397839-A (GB)
Title: Potato harvesting machine with shovel wheel and elevator arranged behind the share
IPC: A01D19/10
Filed: 1931-12-21
Abstract: 397,839. Potato harvesters. NIEMEYER, L., Oese, Iserlohn, Germany. Dec. 21, 1931, No. 35333. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 13, 1932.] [Class 6 (iii).] A potato harvester comprises a shovel wheel 1 which throws the potato ridge lifted by a digging share 2 into a collecting trough 3, widening towards the shovel wheel ; a second shovel wheel 4 rotating in the trough 3 throws the potatoes towards the rear against an elevator in the form of an endless moving grate 5 whence they pass to a sorting drum 31 having movable wall strips and extending transversely to the direction of travel ; the potatoes pass therefrom to stalk- and leafremoving rollers 43, situated in an inclined plane and arranged in pairs, the rolls in each pair rotating in opposite directions ; finally, the potatoes slip from such rolls to baskets 49 on the side of the machine. The shovel wheel 1 comprises tines arranged in inclined rows. The grate 5 comprises bars 6 bent inwardly at their ends to form hooks 52 in which adjacent bars are hooked, some of the bars carrying baffle elements 7 and others parallel elements 7, 8 ; the grate is jigged by means of substantially rectangular, toothed plates 9 and is driven from the shaft 21 to which motion is imparted from the land wheels 13. A grate 23 partly covered by a baffle plate 24 on the shovel wheel 4 closes the trough 3 at the end remote from the shovel wheel 1. A shield 29 prevents earth from being thrown against the driving elements of the machine. The potatoes pass from the elevator to the sorting drum through a shoot 30 provided with guide plates 32. The drum 31 comprises longitudinal rods 54 provided with abutments 35 allowing a 90‹ rotation of the rods, fixed rods 56 and wires 55 rigidly connected to the rods 54 and obliquely disposed with respect thereto and to wire rings 36 ; the drum also comprises a running ring 38 rolling on wheels 37 and is driven from the shaft 21. The bearings of all but one of the rolls 43 are shiftably mounted and spring-pressed towards one another, one of the rolls being driven by a separate motor or steam engine. A lath grate 48 supports the brackets 49.
Patent GB-486654-A (GB)
Title: Device for housing and conveying piles of sheet billets, semi-finished rolled products, sheets or other material to be pickled, in and out of a pickling tank
IPC: B21B39/00
Filed: 1937-12-21
Abstract: 486,654. Load handling machines. HUTTENWERKE SIEGERLAND AKT.- GES. Dec. 21, 1937, No. 35337. Convention date, June 30. [Classes 78 (iii) and 78 (iv)] [Also in Group II] A device for conveying metal sheets to and from a pickling bath during the rolling process and for holding the sheets during treatment in the bath comprises frames 2 having ledges 3 pivoted to a base plate 1. The frames are also pivotally connected by links 8 to a girder 6 which is supported by bars 5 slidably mounted in a guide 15 on the base plate with their lower ends projecting into a pit 12. The sheets 14 are laid in the frames whilst they are in a more or less horizontal position, and on raising the girder by a crane the frames pivot into a position wherein the sheets are vertical, their lower edges resting on the ledges 3 whilst the sheets are retained by catch plates 9 which drop about their pivots 9a so as to overhang the tops of the sheets. Distance pieces may be inserted through apertures 10 in the catch plates. The whole device is now transported to the bath and after the treatment of the sheets is brought back to the loading station and unloaded by the reverse process.
Patent GB-800480-A (GB)
Title: An improved post hole digger
IPC: E02F5/20
Filed: 1955-12-09
Abstract: 800,480. Boring earth. JARRETT, G. H. Nov. 16, 1956 [Dec. 9, 1955], No. 35338/55. Class 85 A post hole digger comprises a stem 1, a handle 2, a drum 4 connected by a bridge 3 to the lower end of the stem, side cuters 5 adjacent openings in the drum, core cutters 6 attached beneath the drum, and tamping means 19 operable from the handle to pack material in the drum or to discharge material from the drum. A ratchet is provided in the stem.
Patent GB-431178-A (GB)
Title: Improvements in and relating to waste outlets
IPC: A47K1/14
Filed: 1934-12-10
Abstract: 431,178. Waste-fittings for baths &c. JONES, C. F. WARD-, Harness Grove, Worksop, Nottinghamshire. Dec. 10, 1934, No. 35388. [Class 26] A waste-outlet has a detachable grating 3, threaded therein and a plug 4 having projections thereon engaging said grating so that the grating may be removed. The plug may seat directly in the outlet or may seat at 3a, in a member forming a unit with the grating, the unit being provided with a flange or bevel portion 5 engaging the outlet. The projections on the plug may extend downwardly or laterally and the upper part of the plug may have a wing-nut portion 8 or a handle.
Patent GB-1436650-A (GB)
Title: Mortar conaining a condensating product of formaldehyde an alkali metal salt of sulphurous or pyrosulphurous acid and a cycloalkanone
IPC: C04B28/00
Filed: 1974-08-12
Abstract: 1436650 Mortars BAYER AG 12 Aug 1974 [18 Aug 1973] 35401/74 Heading C1H [Also in Division C3] A mortar comprises an inorganic binding agent which sets with water, a condensation product of formaldehyde, an alkali metal salt of sulphurous or pyrosulphurous acid and a cycloalkanone and water. The cycloalkanone may be of formula in which n = 0 or 1 and R 1  to R 5  which may be the same or different represent H or an alkyl group. The mortar may contain substances which react with a basically acting binding agent to form substantially insoluble hydroxides (i.e. auxiliaries) and/or other additives. Auxiliaries include FeSO 4 .7H 2 O, Al 2 (SO 4 ) 3  or KAl(SO 4 ) 2 . The other additives include plasticizing agents (e.g. condensation products of nonylphenol with ethyleneoxide), hardening accelerators (e.g. K 2 SO 4  for anhydrite or CaCl 2  for other cements), sealing compounds (e.g. alkaline earth metal salts of stearic acid), air entraining agents (e.g. calcium ligninsulphonate), retarders (e.g. salts of tartaric acid or of citric acid), synthetic resin dispersions (e.g. polyvinylacetate, polyvinylpropionate, and polyacrylates and copolymers thereof), thickeners, activators and antifoam agents. The aggregate may be at least one of sand, silica, perlite, pumice, and foamed plastic beads. Particle size details of aggregate are given.
Patent GB-389209-A (GB)
Title: Source of light with luminous bodies of tantalum carbide
IPC: H01J61/00
Filed: 1931-12-22
Abstract: 389,209. Discharge lamps. ELEKTRISCHE GLœHLAMPENFABRIKEN J. KREMENEZKY AKT.-GES., 55, Dresdnerstrasse, Vienna. Dec. 22, 1931, No. 35417. Convention date, Jan. 10. [Class 39 (i).] The light source consists of tantalum carbide which is heated to incandescence by means of a discharge. An arc discharge may be produced in a gas-filled vessel between a carbide electrode 3, Fig. 1, and a filament 2 which is heated by passing a current therethrough to facilitate starting. The lamp may be evacuated, the electrode being heated by thermionic bombardment from a heated filament. A heating filament 15, Fig. 4, may be used to vaporize mercury to start the arc between the carbide electrode 16 and a mercury electrode 14, or the arc may be ignited by means of a solenoid 20, Fig. 5, which removes the carbide electrode 161 from the mercury electrode 14. The arc may be transferred from the filament or the mercury electrode to a second carbide electrode, and the starting means may be left in circuit or disconnected after ignition. A glow discharge may be used to heat the carbide electrode. Specification 368,595 is referred to.
Patent GB-302812-A (GB)
Title: Improvements in the manufacture of metal articles and alloys therefor
Filed: 1927-12-31
Abstract: 302,812. Hatfield, W. H., and Green, H. Dec. 31, 1927. Annealing.-Ductility is imparted to nickelchromium steel alloys by heating to 950‹-1090‹ C., preferably 1000‹-1050‹ C., and cooling quickly or slowly. Specifications 13414/13, 13415/13; 232,656, [Class 82 (i), Metals, Extracting &c.], and 271,838 are referred to.
Patent GB-1108266-A (GB)
Title: Hydraulic tubular damping devices
IPC: F16F9/18
Filed: 1964-08-31
Abstract: 1,108,266. Hydraulic damping device. N. E. BUTCHER. 25 Oct., 1965 [31 Aug., 1964], No. 35483/64. Heading F2S. An hydraulic damping device comprises an outer casing 12 having a pressure tube 17 concentrically secured therein, the space therebetween forming a fluid reservoir. The reservoir communicates with a chamber formed at the lower end of the device through a plurality of passageways and in turn the chamber communicates with the pressure tube through a one-way valve 24. The upper end of the pressure tube is connected through orifices M, a capillary tube 13, and a further one-way valve 28. A piston 18 provided with a one-way valve 19 is slidably mounted in the pressure tube, the one-way valve system formmg a one-way fluid circulation in the damping device. A small orifice formed in a wall 32 within the chamber causes fluid to flow into the upper part of the chamber beneath valve 24 in a jet which tends to reduce cavitation.