baber/WOPTO huggingface dataset:
Patent GB-720473-A (GB)
Title: Improvements in and relating to paraffin waxes
IPC: C03C25/24
Filed: 1951-10-11
Abstract: A composition suitable for use as a binder for glass mats employed as filter media in electronic precipitators (i.e. precipitators for the removal of particles of moisture from gases) consists of a hydrocarbon wax or chlorinated hydrocarbon wax having a softening point within the range 60-80 DEG  C., together with 0.05-50 per cent by weight, based on the whole composition, of a polyorganohalogenopolysiloxane.  Specified polyorganohalogenopolysiloxanes are polymethyl-, polyethyl- and polyphenyl-chloropolysiloxanes, polymethylbromopolysiloxanes, and mixed polymethyl- and phenyl-chloropolysiloxanes in which either the silicon atoms in the polysiloxane have both methyl and phenyl groups attached or else the alternate copolymerized siloxy units in the polysiloxane comprise methylsiloxanes and phenylsiloxanes. In the examples, the composition specified consists of paraffin wax with a softening point of 80 DEG  C, and the mixture of polymethylchloropolysiloxanes of example (6) of Specification 597,178.  For comparison purposes, compositions are described which consist of paraffin-wax and either dimethylsilyl diacetate or a mixture of methylchlorosilanes comprising dimethyldichlorosilane and methyltrichlorosilane in roughly equal proportions.ALSO:A composition suitable for use as a binder for glass mats employed as filter media in electronic precipitators (i.e. precipitators for the removal of particles of moisture from gasses) consists of a hydrocarbon wax or chlorinated hydrocarbon wax having a softening point within the range 60-80 DEG  C., together with 0.05-50 per cent. by weight, based on the whole composition, of a polyorganohalogenopolysiloxane. Specified polyorganohalogenopolysiloxanes are polymethyl-, polyethyl- and polyphenyl-chloropolysiloxanes, polymethylbromopolysiloxanes, and mixed polymethyl- and phenyl-chloropolysiloxanes in which either the silicon atoms in the polysiloxane have both methyl and phenyl groups attached or else the alternate copolymerized siloxy units in the polysiloxane comprise methylsiloxanes and phenylsiloxanes. In the examples, the composition specified consists of paraffin wax with a softening point of 80 DEG  C. and the mixture of polymethylchloropolysiloxanes of Example 6 of Specification 597,178, [Group IV].  For comparison purposes, compositions are described which consist of paraffin wax and either dimethylsilyl diacetate or a mixture of methylchlorosilanes comprising dimethyldichlorosilane and methyltrichlorosilane in roughly equal proportions.
Patent GB-946677-A (GB)
Title: Improvements in or relating to pneumatically operated percussive hammers
Inventor: STENUICK ANDRE
IPC: E21B4/14
Filed: 1960-07-07
Abstract: 946,677. Percussive drills. HALIFAX TOOL CO. Ltd. June 29, 1961 [July 7, 1960], No. 23813/60. Heading B4C. [Also in Division E1] In a " down the hole " pneumatic percussive drill a valve by-passes the air supply to the distributer valve controlling reciprocation of the bit when the bit is out of contact with the earth. A drill according to Specification 946,678 has a cylinder 1. The distributer valve 7 is mounted in a valve chest 8 and controls ports 9, 10 supplying the lower part of the cylinder and port 11 supplying the upper part of the cylinder. The cylinder is slidable on a shock-absorber piston 13 having ports 15 for the supply of air to the cylinder and mounted on the end of the drill tube 19. At its lower end the piston has a plunger 30 filling a by-pass bore 34 in the chest when the bit contacts the earth. When the bit moves out of contact with the earth the plunger withdraws from the bore and most of the air passes into the top of the cylinder to hold the bit impacting piston (not shown) down whilst the rest of the air flows through ports 10 and passages 24 to the bit to evacuate any debris. Specifications 714,663, 793,925, 844,607 and 844,608 also are referred to.
Patent GB-832153-A (GB)
Title: Catalytic hydrogenation of the dinitro derivatives of toluene
IPC: C07C209/36
Filed: 1958-07-24
Abstract: Diaminotoluenes are produced by the catalytic hydrogenation of the corresponding dinitrotoluenes in the molten state, the dinitrocompound used containing less than 500 parts per million, preferably less than 200 p.p.m., of nitrophenols or nitrocresols whereby the hydrogenation can be safely carried out at a temperature between 90 DEG  and 135 DEG  C. at ordinary or slightly elevated pressure, without the formation of tarry by-products. The dinitrocompound may be prepared by nitrating toluene or mono-nitrotoluene in stainless-steel equipment which does not introduce ionizable iron salts into the product.  If cast-iron equipment is used for the nitration, the crude dinitro-compound must be washed with dilute nitric acid, to remove iron, prior to washing with alkali and water.  The nitrophenol or nitrocresol content of the dinitro-compound can be determined by polarographic analysis. Examples 1, 2, 4 and 5 relate to the reduction of a mixture of 2,4- and 2,6-dinitrotoluenes to the corresponding tolylene diamines using a palladium-on-charcoal catalyst, which is introduced into the reactor in the form of a slurry in deionized water.  In Example 5, a nickel-on-silica catalyst is used. Example 3 relates to the hydrogenation of 2,4-dinitrotoluene.
Patent GB-666446-A (GB)
Title: Improvements in or relating to bottle-capping apparatus
IPC: B67B3/14
Filed: 1949-09-15
Abstract: 666,446. Bottle-capping machines. EVERSHED, R. A., and EVERSHED & CO., (BOW), Ltd., J. Sept. 15, 1950. [Sept. 15, 1949] No. 23859/49. Addition to 594,322. Class 125(ii). The bottle-capping apparatus of the parent Specification includes, in the capping head 11, a yieldinglypressed pad 22 which bears upon the centre-portion of the embryo cap 16 during the downward motion of the head on to the bottle 17 in order to keep the cap central with the bottlemouth during the capping operation. The pad is mounted on a rod 24 sliding in the head 11 and being surrounded by a spring 25. It has a downturned rim 23 to preliminarily shape the cap. Specification 508,108 also is referred to.
Patent GB-225003-A (GB)
Title: Improvements in or relating to building construction
IPC: E04B2/56
Filed: 1923-09-25
Abstract: 225,003. Newman, B. L. Sept. 25, 1923. Double walls with concrete fillings. - The pillars of walls formed of precast pillars and double slabs, are formed in sections having a central vertical grouting hole 5 communicating at the joints with transverse recesses 8 in the top and bottom faces. The cement grouting escapes into the wall cavity and may either fill the entire cavity or only the spaces 39, 40 adjacent to the pillars. Such spaces may be formed by vertical boards or intermediate slabs 37, or flanges projecting from the inner faces of the slabs. The sides of the pillars and slabs may be bevelled.
Patent GB-464614-A (GB)
Title: Improvements in electrically driven flyer frames
IPC: D01H3/04
Filed: 1936-09-01
Abstract: 464,614. Flyer frame driving-arrangements. AKT.-GES. J. J. RIETER & CIE. Sept. 1, 1936, No. 23948. Convention date, Sept. 30, 1935. [Class 120 (ii)] In electrically driven flyer frames the motor 1 is arranged within the framework beneath the roller beam 2 and adjacent to the cone-belt mechanism, the drive being transmitted to an extension of the main shaft 16 towards the spindles. The drive may be transmitted by belt or chain ; as shown a belt 13 is connected to fast and loose pulleys, the motor being pivotally mounted in a bearing 5 and controlled by adjustable springs 7, 8 engaging a fork 6 on the casing, whereby smooth starting is ensured ; alternatively, a tension roller, such as that known under the trade name Lenix, is temporarily retracted from the belt by means connected with the switch gear.
Patent GB-329233-A (GB)
Title: Improvements in or relating to toy fire-arms
IPC: F41B11/00
Filed: 1929-08-06
Abstract: 329,233. B³rk, C., (trading as B³rk, C., [Firm of]). Nov. 23, 1928, [Convention date]. Projectors and projectiles. - In a. compressed air pistol, actuated by a plunger 2 and trigger 3, the barrel or compressed air cylinder 1, has a narrow opening 4 having a sharp edge which is forced through discs of potato, turnip or similar material to load the muzzle, the ejection of the missile by compressed air being accompanied by a detonation.
Patent GB-576554-A (GB)
Title: Improvements relating to devices for sharpening gramophone needles
IPC: B24B19/16
Filed: 1944-11-30
Abstract: 576,554. Needle sharpeners. AMPLIFIERS, Ltd., and BANNISTER, E. Nov. 30, 1944, No. 23956. [Class 60] A gramophone needle sharpener comprises an abrasive disc, the spindle of which is rotated by the fingers and is mounted in a member carrying, on a transverse pivot, a stem having a handle at one end and a rotatable chuck for the needle at the other. The member 1 is formed with a bearing for the spindle 2 of the abrasive disc 5, which is manipulated by a knob 4. The needle is fixed in a chuck 14 which is rotated by a collar 17 with a driving band 20 engaging the abrasive disc, and is carried at one end of a stem pivoted at 12 to the member 1 and fitted at its other end with a handle 9. The member 1 and other parts are made of plastic composition.
Patent GB-1193255-A (GB)
Title: Improvements relating to Mass Spectrometry
Inventor: BARBER MICHAEL
IPC: H01J49/02
Filed: 1966-05-27
Abstract: 1,193,255. Determining molecular structure. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 23 May, 1967 [27 May, 1966], No. 24019/ 66. Heading B1X. Apparatus for determining the probable molecular structure. of an unknown sample from the peaks in its mass spectrum comprises means for accepting chemical information relating to the sample, and pertaining at least to the composition of its molecular ion and possible fragments thereof, parent peak determination means for determining the parent peak of the spectrum by comparison of the measured ion masses or atomic compositions corresponding to the peaks in the region of highest mass number with elimination criteria which may include chemical information, means for recording as the molecular ion formula the atomic composition corresponding to the parent peak, comparison means for determining the ion fragmentation compatible with this formula and with the chemical information, mass spectrum interrogation means for comparing the recorded mass spectrum with the masses or atomic compositions of the fragments which would be obtained from the possible fragmentations, to detemine which of the fragmentations are represented by the spectrum, and means for recording the corresponding structural constituents of the molecular ion. Specification 1, 147, 651 is referred to.
Patent GB-1045072-A (GB)
Title: Improvements in or relating to ceramic materials
Inventor: MUNRO WILLIAM
IPC: G21C3/62
Filed: 1963-06-17
Abstract: 1,045,072. Fuel material. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. June 10, 1964 [June 17, 1963], No. 24023/63. Heading G6C. In the production of a nuclear fuel, particles of a first ceramic material, e.g. an oxide of U, Th, P or a mixture thereof, are mixed with a powder of a second ceramic material, e.g. BeO, Al2O3 or MgO, containing a small quantity of wax so as to form a coating of the second ceramic material on the particles of the first material, and the coated particles are then packed and compacted, the compact heated under reduced pressure to distil off the wax and the de-waxed compact sintered. The particles of first ceramic material are preferably spheres of diameter 150-250 microns while the second ceramic material is sieved to give agglomerates of less than 76 microns. These agglomerates may consist of particles of size about 1 micron and may break down in the subsequent mixing with the particles. The powder is coated with wax, preferably by mixing with petroleum ether containing dissolved wax and the petroleum ether solvent subsequently allowed to evaporate off. In a particular example, beryllia powder was sieved to give agglomerates of less than 300 mesh BSS (53 microns) and 8% by weight of refined paraffin wax (setting point 50‹ C.) dissolved in petroleum ether was then added to the powder. The waxed beryllia powder was added to spheres of sintered uranium dioxide of diameter 150-250 microns contained within a brass drum rotating with its axis horizontal at a peripheral speed of 100 feet/minute and heated by an infra-red lamp to provide an internal surface temperature in excess of 50‹ C. After a period of mixing the spheres with the waxed powder, the spheres became uniformly coated with the beryllia and further additions of waxed powder were made until sufficient beryllia had been added to give a beryllia content of 80% by volume. The coated spheres were then poured into a steel die and close packed by vibrating the die. The packed material was cold compacted by pressing at 20,000 p.s.i. to give pellets of uranium dioxide dispersed uniformly in a matrix of beryllia. These pellets were placed in a vacuum furnace and de-waxed by heating at 250‹ C. for 12 hours at a pressure of about 10 microns, the de-waxed pellets then being placed in a hydrogen-nitrogen atmosphere furnace and sintered by heating at 1750‹ C. for 2 hours. The sintered product had a density in excess of 95% of the theoretical value.
Patent GB-535691-A (GB)
Title: Improvements in or relating to diaphragm valves
IPC: F16K15/14
Filed: 1939-08-21
Abstract: 535,691. Diaphragm valves. BURGESS, A. F. (McAlear Mfg. Co.). Aug. 21, 1939, No. 24042. [Class 135] A diaphragm valve 7 adopted to close on to a seat 4, to prevent the flow of fluid from an inlet 2 to an outlet 3 is provided on the downstream side of the seat 4 with holes 10 communicating with a chamber 6a above the diaphragm, so that if the flow of fluid should become reversed, the higher pressure on the side 3 of the seat is transmitted through the holes 10 to the chamber 6a, and results in the closing of the valve.
Patent GB-1344755-A (GB)
Title: Roaster grate
IPC: C22B1/20
Filed: 1972-05-23
Abstract: 1344755 Sinter grates; grate bars J KOERVER 23 May 1972 [28 May 1971] 24110/72 Heading F4B In a sinter grate comprising grate bars supported at their ends by heads of greater width than a grate bar to form spaces between adjacent bars, the supporting heads of each grate bar overlap the supporting heads of adjacent grate bars. The bearing heads may be in the form of flat plates 10<SP>1</SP>, the plates 10<SP>1</SP> at either end of the grate bar 8 being at different levels, so that the bars may be arranged with their heads overlapping. In another embodiment, Figs. 7 and 12, the bearing heads are T-shape in crosssection, the head at one end of a bar being inverted. The face of the head adjacent the charge bearing surface of the bar may be inclined as at 10<SP>11</SP>d. Instead of each bar having a different head at either end, bars of two forms may be used.
Patent GB-263529-A (GB)
Title: Improvements in or relating to means for introducing water into the combustion chamber of a petrol engine
IPC: F01P9/02
Filed: 1925-09-28
Abstract: 263,529. Fraser, A. Sept. 28, 1925. Drawings to Specification. Motor spirit comprises an emulsion of fuel and water, e.g. 70 to 85 per cent petrol and 30 to 15 per cent water, the latter containing 2 to 5 per cent of an emulsifier. e.g. a fatty acid, or ammonium oleate or other alkali salt of a fatty acid.
Patent GB-402559-A (GB)
Title: Improvements in mixing valves for hot and cold water
IPC: F16K11/083
Filed: 1932-08-30
Abstract: 402,559. Mixing-valves. DEWES, G. W., 83, Gordon Road, Fleetwood, Lancashire. Aug. 30, 1932, No. 24163. [Class 135.] A mixing-valve body 1 has two inlets 2, one outlet 4, and a fixed indicator-pin 5 which co-operates with a dial 6 rotating with the plug. The plug has three passages, one twice the size of the other two, and grooves 17 which are filled with packing. The body is recessed to receive a washer 11 below the closure 10. The ends of a further recess 12 extending along a portion only of the circumference form stops for a pin mounted on the plug and working therein.
Patent GB-160864-A (GB)
Title: Improvements in friction variable speed gear
IPC: F16H13/14
Filed: 1919-10-06
Abstract: 160,864. Turner, C. M. C. Oct. 6, 1919. Variable-speed friction gearing comprises a disc a, Fig. 1, thrust against a roller b by a pair of wedges h, which are movable longitudinally so as automatically to adjust frictional engaging pressure. The roller b slides on a shaft n to vary the speed. In the form shown, the roller is in clutch engagement at r with a disc z secured to a driving- shaft a. The disc z is formed as a friction clutch adapted to drive the disc or discs a through bevel friction gears d, c. The wedges h, which act on the discs a through rollers f, are connected through rods H and levers to a beam k. The beam k may be acted on by a worm transmitting the drive in such a way as to vary the engaging pressure in accordance with the torque. An arrangement adapted for a worm drive which is reversed from time to time is shown in Fig. 2. The connection between the rods H and the beam k is through levers j<1> adapted to turn about two pivots h<1>, h<2> so as to pull the rods H the same way whether the thrust on the beam k is forwards or backwards. In the arrangement shown in Fig. 1, there are two sleeves m, o having wedge teeth coacting so as to produce end thrust: The sleeve o is loose and adapted to be connected to a tail shaft t through a sliding clutch s. The sleeve m turns with the shaft n and is connected through a thrust bearing l to the beam k. This pressure device is cut out during direct driving by the clutch s being engaged with teeth on the sleeve m. The friction clutch comprises two rings y, y<1> drawn together by screws X carrying planet gears x. The gears x mesh with a sun gear w connected to a brake drum v, and with an annulus # having ratchet teeth. When the friction clutch y, z is to be disconnected, a brake is applied to the drum v. A spring B between the gear w and the drum d is wound up, and a detent engages the ratchet on the annulus # holding the clutch disengaged. On releasing the brake and disengaging the detent, the spring B functions to engage the clutch
Patent GB-746259-A (GB)
Title: Improvements in lifting mechanism for industrial trucks
IPC: B66F9/08
Filed: 1954-08-21
Abstract: 746,259. Fork lift trucks; hydraulic lifting apparatus. LEWIS-SHEPARD CO. Aug. 21, 1954, No. 24394/54. Classes 78 (2) and 78 (3). The mechanism for actuating the lifting carriage 13 of a telescopically masted fork lift truck comprises a ram 17, 18 secured to the truck at 11, pairs of sprockets 19, 20 rotatably mounted on the movable mast section 12, a pair of sprockets 22 journalled in a mounting 23 anchored to the base by rods 14, a pair of sprockets 21 rotatably mounted on a ram cross head 16 and a pair of chains 15 connected at their ends to the carriage and cross head. Vibration is minimized by connecting the chains to the carriage by a pivoted yoke, arranging the chains so that the links of one chain are displaced from the links of the other by one half the length of a link and choosing sprockets conforming to a number of requirements stated in the Specification.
Patent GB-311615-A (GB)
Title: Improvements in or relating to spinning machines
IPC: D01H1/04
Filed: 1928-08-24
Abstract: 311,615. Abeele, J. van den. Aug. 24, 1928. Spindle apparatus; spindle-driving apparatus; stop-apparatus, non-magnetic; spindle and lifting rails; anti-ballooning arrangements; building- motions.-In spinning-machines for wet or dry spinning of any material the flyer is in the form of a disc 10 with short arms 11, a separator 9 is arranged above the flyer rail, and a braked spindle is carried on a reciprocating rail 18 which is hinged to the poker 19 so that it may be tilted for doffing purposes, the arrangement being such that, at the beginning of the winding, the cop tube projects through the central holes of the flyer disc and the separator which are just sufficiently larger in diameter than the cop tube to allow of the passage of the yarn whereby ballooning is prevented, while, when the cop is fully wound, it is below the flyer arms to permit of the tilting of the spindle rail. The flyer is driven by a cord 14 tensioned by a pulley 15 mounted on a weighted or spring-controlled sliding carriage 16. The building of the cop is effected by cam-operated levers 30 and chains 32 connected to ratchet-operated winding-drums 36, the amplitude of the oscillations imparted to the spindle rail during the winding of the base of the cop being determined by suitably shaped drums to which the lifting chains or belts 34 are secured. The flyers are stopped by brake shoes 44, Fig. 6, on a lever 43, and are held in the stopped position by a finger 46 on a lever 47.
Patent GB-706966-A (GB)
Title: Improvements in or relating to goggles
IPC: A61F9/02
Filed: 1952-09-30
Abstract: 706,966. Goggles. CRETIN-BILLET & FILS, L. Sept. 30, 1952 [Jan. 11, 1952], No. 24518/52. Class 97(1). Goggles comprise a resilient frame formed by a profiled linear band of resiliently flexible material having a section in the form of a U juxtaposed with an inverted U and having a common flange forming with one external flange thereof a groove to receive the periphery of the ocular, the other external flange being intended for application to the face, and means for securing the ocular and fastening straps to the frame. As shown in Fig. 2 the band is formed of flanges 2, 4, 3 forming two oppositely facing channels of different width. To form the goggles the noseengaging portion of the ocular 5, Fig. 3, is inserted in the narrow channels formed by the flanges 2 and 4 and secured thereto by a rivet 6. The band is then stretched round the periphery of the ocular, located in the said narrow channel, and is secured under tension by rivets 7, 8 and a covering 9. The tension maintains the ocular bowed outwardly. A metal band 16 may be provided around the periphery of the ocular as reinforcement and lugs 13 for fastening straps may be secured thereto.
Patent GB-702296-A (GB)
Title: Improvements in or relating to air cleaners
IPC: F02M35/026
Filed: 1951-10-22
Abstract: 702,296. Air cleaners. HOUDAILLE-HERSHEY CORPORATION. Oct. 22, 1951 [April 5, 1951], No. 24567/51. Class 8 (2). A liquid bath air cleaner comprises a casing 1 having an inlet 6 an outlet 18, a closed bottom 2 and a removable cover 8 whereby the liquid cup 27, which is .adjacent the bottom of the casing and has a margin 28 seated on an annular gasket 4, together with the filter unit 19 above the cup may be removed through the top of the casing. The filter unit 19 is of curled hair or wire within a shell having imperforate side walls
Patent GB-1056914-A (GB)
Title: Process for the preparation of printing plates
IPC: B41N3/08
Filed: 1964-06-12
Abstract: 1,056,914. Etching. KALLE A.G. June 12, 1964 [June 14, 1963], No. 24579/64. Heading B6J. [Also in Division G2] Aqueous etching solutions for aluminium plates comprise: (1) calcium chloride, hydrochloric and nitric acid, copper and ferric chloride and (2) calcium and ferric chlorides, lactic acid and isopropanol. For zinc plates an aqueous solution of calcium, zinc and ferric chlorides and nitric acid is used.