baber/WOPTO huggingface dataset:
Patent GB-1242662-A (GB)
Title: Method of preparation of compressed graphite structures
Inventor: OLSTOWSKI FRANCISZEK
IPC: C01B31/00
Filed: 1969-01-08
Abstract: 1,242,662. Compressed expanded graphite; and bodies thereof. DOW CHEMICAL CO. 8 Jan., 1969, No. 1237/69. Heading C1A. Expanded graphite particles are compressed to produce flakes of graphite, irregular in form and having a density of 0À25 to 1.5 gm./cc. A random mass of such particles may be assembled and such mass further compressed into a coherent graphite article have a density of 10 to 2À1 gm./cc. Preferably the original expanded particles are compressed by passing the particles between rollers, and such compressed particles may be subjected either uniaxially or multiaxially to a pressure of at least 300 p.s.i. (21 kg./cm.<SP>2</SP>) preferably 300-5000 p.s.i. (21-350 kg.(cm.<SP>2</SP>). A binding agent may be used when compressing the graphite flakes. The bonding agent is preferably in the form of a fine powder (0À044-0À149 mm.) being used in an amount of from 2-55% by weight. Numerous organic and inorganic bonding agents are exemplified and belong to three groups: solid organic polymers, organic compounds yielding a char upon pyrolysis, and inorganic glass forming materials. Reference has been directed by the Comptroller to Specification 1,049,588.
Patent GB-509417-A (GB)
Title: Improvements in variable-pitch airscrews
IPC: B64C11/32
Filed: 1938-01-14
Abstract: 509,417. Screw propellers. WELLS, R. G., and EVANS, A. F. Jan. 14, 1938. No. 1266. [Class 114] In variable-pitch airscrews in which each blade has an eccentric pin projecting inwardly at the root and is coupled by a link with a member slidable along the propeller axis, the link is shorter in length than the radius of eccentricity of the pin and is pivoted at its other end at a distance perpendicularly from the axis which is greater than one half the radius of eccentricity. Each blade 15 is mounted in sleeve 14 on a hollow boss 13 which is secured to the propeller shaft 10. Within the boss and keyed to the shaft is a slider member 20 having arms 19 formed at their outer ends as pins 18. Each blade has projecting from its root a pin 16 and coupling the pins 16 and 18 are links 17. These links between centres are shorter than half R the radius of eccentricity of the pin 16 and the distance D of the axis of the pins 18 from the propeller shaft axis is greater than half R. Specifications 355,329 and 455,044 and U.S.A. Specification 1,894,047 are referred to.
Patent GB-1337357-A (GB)
Title: Remote analyzing apparatus for gaseous material
Inventor: LEONARD D A
IPC: G01S17/95
Filed: 1972-01-11
Abstract: 1337357 Photo-electric gas analysis AVCO CORP 11 Jan 1972 [22 Jan 1971] 1312/72 Heading G1A In an apparatus for the remote analysis of a gaseous material such as a smoke cloud from a chimney, an intense source of monochromatic light is directed into the material and a plurality of specific wavelengths of Raman scattered radiation characteristic of constituents being investigated are detected, a radiation filter being included in the respective radiation paths between the material and the detector to accept the said specific wavelength and reject radiation of the wavelength of the source. In an arrangement, Fig. 4, for investigating simultaneously a number of constituents at different predetermined distances, with a pulsed laser beam Raman scattered radiation of different frequencies is applied to different respective detectors 57-59, and recorders 72, 102, 112 are gated to receive the integrated detector outputs for selected periods of known duration occurring a predetermined time after a laser pulse, the delay being the factor which determines the range at which the measurement is being made. Provision is made for introducing a number of delays to cover a number of different ranges spaced for example in 50 ft intervals. The filter may be a liquid filter including dimethyl, diazacycloheptor, and diene perchlorate, and one of the detectors may respond to a wavelength indicative of nitrogen which may be used as a standard for calibration purposes. The output may be in the form of the ratio of one gas to another. (For Figure see next page)
Patent GB-309631-A (GB)
Title: Improvements in or relating to voltage-regulating devices for supply systems comprising variable speed-dynamos
IPC: H02J7/24
Filed: 1928-01-14
Abstract: 309,631. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Jan. 14, 1928. Regulation, automatic; supplying consuming devices from variable-speed generators; charging batteries.-In systems for regulating the voltage of a variable-speed generator in which the internal resistance of an electron discharge tube 10, connected in parallel to the field winding of the generator 1 or of a separate exciter 7, is controlled according to the main current or voltage of the generator, a buffer battery 3 and a resistance 20 are connected in series across the generator and a second discharge tube 15 has its cathode 17 in parallel to the resistance 20. The tube 10 mav be a diode with its cathode 12 connected through a variable resistance 14 to the generator poles or between one pole and the far side of a main resistance 4 as shown. As the speed of the generator increases, its voltage is maintained constant after it is cut-in, increasing voltage producing increasing current in the cathode 12 and so decreasing resistance in the diode 10 and decreasing current in the exciter field 8. The resistance 4 produces a regulation of the voltage at a higher value during the evening when the lamps 6 are on than during the daytime. The tube 15 is a diode with its filament 17 connected through a variable resistance 19 to the resistance 20 and prevents undue rises in the current through the battery should a shortcircuit or overdischarge occur and in the voltage of the generator should the diode 10 fail, such rises making the diode 15 conductive and reducing the current in the field 8. In a train lighting system, the lamps 6 are supplied through an automatically controlled resistance 5.
Patent GB-1480961-A (GB)
Title: Process and apparatus for stripping residual solvent from polymer pellets
IPC: B01J2/16
Filed: 1975-01-13
Abstract: 1480961 Evaporator E I DU PONT DE NEMOURS & CO 13 Jan 1975 [14 Jan 1974] 1361/75 Heading BIB An evaporator for removing residual volatiles from solid pellets (e.g. polymer pellets wet with hydrocarbon) (a) a vertical cylindrical top section (1) having a length-to-diameter ratio greater than 3:1 and a pellet inlet at the centre of the top thereof; (b) an inverted conical reducing bottom section (2) joined to the bottom of the vertical cylindrical top section; (c) a first conical pellet distributor (3) axially centered with its apex just below and adjacent to the pellet inlet, the circular horizontal base of said distributor having a diameter of approximately one-half the diameter of the cylindrical top section; (d) a second pellet distributor (4) located within the conical reducing bottom section, said second pellet distributor having the form of two cones joined at their bases, said cones having included angles approximately equal to the included angle of the conical reducing bottom section and said second pellet distributor being axially centered with its upper apex at the level of the joint between the cylindrical top section and the conical reducing bottom section leaving an annular passage between the second pellet distributor and the wall of the conical reducing bottom section, said second pellet distributor containing circumferentially distributed means (5) in its upper cone portion spaced from said upper apex for passing gas from the interior of said second pellet distributor into said vertical cylindrical top section, (e) gas inlet means (8) leading to the interior of the second pellet distributor, (f) gas inlet means (7) circumferentially evenly spaced near and around the top of the inverted conical reducing bottom section, (g) a pellet outlet (11) at the base apex of the inverted conical reducing bottom section, and (h) a gas outlet (18) at the top of the vertical cylindrical top section. The stripping may be carried out with steam (via 7 and 8) and the resulting steam/ volatiles mixture condensed and separated.
Patent GB-907693-A (GB)
Title: Improvements in or relating to a method and apparatus for building pneumatic tyres
Inventor: BARBER RONALD JESSE
IPC: B29D30/24
Filed: 1958-01-15
Abstract: 907,693. Building pneumatic tyres. DUNLOP RUBBER CO. Ltd. Dec. 31, 1958 [Jan. 15, 1958], No. 1370/58. Class 144 (1). A tyre-building apparatus comprises a cylindrical, inflatable, radially expansible diaphragm 5 of a length sufficient to support the full width of the tyre carcase plies and supported at its ends by supporting discs 3, 4 which are movable axially towards or away from each other, there being a pair of radially expansible bead locating members 10, 11 mounted coaxially within the diaphragm for relative axial movement so that, when the tyre plies are wrapped around the diaphragm and the bead locating members are expanded to clamp the plies to the bead cores, the diaphragm is inflated and the supporting discs 3, 4 and locating members 10, 11 are respectively approached towards each other to effect turn-over of the ply ends around the bead cores and simultaneous shaping of the tyre carcase to arched section ready for application of a tread band thereto. As shown, the supporting discs 3, 4 and bead locating members 11, 12 are each slidably mounted on a shaft 1 and are respectively moved axially by means of a pair of rotatable, axially fixed tubes 14 which have appropriate right and lefthanded screw engagement with rods 6, 7 operatively connected with the discs 3, 4 and with bushes 17, 18 in the locating members 10, 11. The pitch of the screw engagement of the bushes 17, 18 is half that of the rods 10, 11 so that the discs 3, 4 are moved at twice the rate of the members 10, 11. The bead locating members comprise annular supports 32, 33, each having an outer peripheral recess 35 housing an inflatable rubber tube 19 within a series of segments 37 which are peripherally grooved to locate a bead core on radial expansion occasioned by inflation of the tube 19. The segments 37 are expansible radially against the action of a garter band 38 or alternatively the segments 37 are replaced by a stretchable rubber band. To assist in effecting ply turnover, the end discs 3, 4 carry frusto-conical baffles 36a, 36b which serve to force those inflated end portions of the diaphragm axially outwardly of the bead cores in a direction, on approach movement of the discs, towards the arched centre portion of the carcase and thereby stitch the ply ends around the bead cores. Specification 907,692 is referred to.
Patent GB-538280-A (GB)
Title: Improvements in or relating to the production of urea aldehyde derivatives
IPC: C07C273/18
Filed: 1940-01-25
Abstract: 538,280. Ethers of dimethylolurea. DU PONT DE NEMOURS & CO., E. I., and SORENSON, B. E. Jan. 25, 1940, No. 1548. [Class 2 (iii)] Monoethers of dimethylolurea are made by re-acting an alkyl or aralkyl ether of monomethylolurea with formaldehyde, preferably in an alkaline medium at a pH value between 7.4 and 9.0. The ethers of monomethylolurea may be made by the process of Specification 522,644. The preparation of the monomethyl, mono-n-butyl, and mono-isobutyl ethers of dimethylolurea is described in examples. The monobenzyl ether is also referred to. The products may be heated with alcohols to give resinous solutions which may be used with or without pigments, fillers, dyes, plasticizers or modifiers, to produce decorative' or protective coatings on various kinds of surfaces, or for impregnating porous materials such as wood, woven or felted fibrous materials, leather &c. The coatings produce hard flexible films when baked.
Patent GB-304215-A (GB)
Title: Improvements in separable slider-operated fasteners
IPC: A44B19/38
Filed: 1929-01-16
Abstract: 304,215. Lightning Fasteners, Ltd. Jan. 16, 1928, [Convention date]. Sliding-clasp fastenings in which the stringers 1, 2 carrying the usual members 3 interengaged by a slider 4 are made entimely separable have two or more members 5, 6 clamped to stringer 2 to stiffen it but allow flexibility for passage through the slider, and a socket 15 on stringer 1 to receive the members 5, 6. Member 6 is of split tubular form, and member 5 has a similar tubular portion embracing the edge of the stringer, and a flat extension provided with tabs 9, 10. To prevent fraying the end of the stringer is, cut obliquely and folded over as shown, and is held by bending over the tabs 9, 10, tab 10 being first passed through the material of the stringer. Member 15 has integral jaws 16, 17 clamped to the edge of stringer 1 and a, stop 20 for member 5 so that the member 3 is correctly positioned for operation by the slider. To separate the stringers the slider is moved over the parts 6, 16 into contact with the socket 15 so entirely disengaging members 3. Stringer 2 can then be withdrawn. The slider remains on stringer 1, a stop such as 21, Fig. 2, being provided to prevent its removal at the upper end.
Patent GB-469441-A (GB)
Title: Improvements in and relating to the manufacture and production of staple fibre
IPC: D01G1/04
Filed: 1936-01-17
Abstract: 469,441. Production of staple fibre. COURTAULDS, Ltd., and LLOYDS BANK, Ltd., [Representatives of TOPHAM, C. F.]. Jan. 17, 1936, No. 1595. [Class 120 (iii)] To cut continuous threads or bundles of filaments into short lengths they are led through a narrow tube, provided along its whole length with a narrow slot to facilitate threading, to a rotating cutter which presses against the end of the tube, their passage along the tube being assisted by a current of fluid flowing therealong. The thread M, e.g. of cellulose acetate produced by a dry spinning process is led at a constant rate by a wheel N and is introduced through a slot B into tube C, the upper and longer end of which is rectangular while the lower portion in the baseplate E is circular. A current of air is introduced through a pipe J and directed through two perpendicular channels K into two grooves L leading at an angle into the tube C. This current carries the thread down the tube and through the hole in the base-plate E against which press the three blades G of the rotating cutter F. The cut thread passes to a broader tube Q and is led away to a bag or collecting device aided by a current of air introduced through pipe R. The tube Q has at its commencement a slot with cheeks T to facilitate starting up of the apparatus, a loop of the thread passing from a spinning cell to a waste roller being drawn out and led through slot B into tube C, cutting of the loop causing its receding end to be wound on the waste roller while the oncoming thread is carried forward by the current of fluid. Two tubes may be employed side by side, the blade cutting the threads consecutively. For wet spinning processes the fluid employed is preferably water or a stream of dilute acid.
Patent GB-216463-A (GB)
Title: Improvements in devices for regulating the evaporation of liquid oxygen and the like
IPC: F17C9/02
Filed: 1924-01-21
Abstract: 216,463. Kautny, T. Jan. 21, 1924. Revaporizing liquefied gases.-The evaporation of liquefied oxygen &c. is promoted and regulated by an electric heating element immersed in the liquid and arranged in a circuit controlled by the pressure in the discharge conduits. As shown, a vacuum-jacketed storage vessel a is fitted for evaporation with a cover b through which pass conductors g carrying a fine resistance f. If the conductors are of copper, they and' a part of the resistance are insulated, but if of aluminium the natural coating of oxide forms a sufficient insulation. A discharge pipe c leads from the cover to a heat interchanger d from which a pipe e leads to the place of use. A pressure chamber h communicates with the chamber d or with the discharge pipe, and is covered by a weighted diaphragm i the movement of which under the variations of pressure is caused to operate a switch or rheostat controlling the current supply. The vessel a and pipe c are covered with insulating material such as rubber or celluloid, and a ring l of wood &c. is interposed between the in- and outsides of the vessel. The arrangement may be applied to the fractional evaporation which occurs in the production of oxygen by the liquefaction of air.
Patent GB-459330-A (GB)
Title: Improvements in tongs for pressing in connecting hooks for driving and conveyor belts
IPC: F16G3/00
Filed: 1936-01-18
Abstract: 459,330. Belt fastenings. WEVER, P., 4, Gartenstrasse, D³sseldorf, Germany. Jan. 18, 1936, No. 1675. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 16, 1936.] [Class 80 (i)] A tongs device for pressing hooks into wide driving or conveyer belting comprises a fixed frame which holds tongs, hooks, and belt in the correct relative positions for the pressing operation. Means are also provided for feeding the tongs laterally after each pressing operation. In the form shown, the tongs comprise a frame 19 slidable on a bar 9 in the fixed frame 1. To perform the pressing movement, the tong-jaws 6b, 7b are rotatable about their pivot 20 by toggles 6<a>, 7<a> integral with handles 6, 7. The amplitude of the pressing movement is determined by replaceable distance pieces 15, which rest against the bar 9 and form a stop for the toggle pivot 8. The jaws are provided with rocking pieces 14, which adjust themselves to the hook arms. The hooks 5 are held by a rod 3<a> in slots in a bar 3 rotatable through 90‹ to rocking pieces 14, which adjust themselves to the hook arms. The hooks 5 are held by a rod 3<a> in slots in a bar 3 rotatable through 90‹ to facilitate insertion, a locking screw being adapted to hold the bar in the pressing position shown. The belt end 2 is held between a fixed part 2a and a clamp 2b by a screw 2d. After each pressing operation the tongs are displaced laterally by depressing a lever 25, Fig. 4, pivoted to the tongs frame 19, and carrying a pivoted pawl 21 engaging notches 24 in the bar 9.
Patent GB-1205493-A (GB)
Title: Process for the preparation of organic esters from secondary alcohols
IPC: C07C69/34
Filed: 1968-01-11
Abstract: 1,205,493. Dicarboxylic acid esters. MONTECATINI EDISON S.p.A. 11 Jan., 1968 [11 Jan., 1967; 29 Sept., 1967], No. 1687/68. Heading C2C. Esters of aliphatic α,#-dicarboxylic acids having 3-12 carbon atoms or of aromatic dicarboxylic acids are made by treating the acids with linear olefines having 4-20 carbon atoms in the presence of an aryl mono- or disulphonic acid or of an ion-exchanging arylsulphonic resin as catalyst and in the presence also of an organic or inorganic per-compound. Specified acids which may be esterified are malonic acid, succinic acid, 2,3-dibromosuccinic acid, pymelic acid, adipic acid, 3- and 4-chlorophthalic acids, phthalic acid, 4-nitrophthalic acid, 4-bromophthalic acid and 3- and 4- methoxyphthalic acids. A number of suitable olefines are specified, as also are several sulphonic acids and many per-compounds. The products generally include semi-esters as well as diesters. Examples are given.
Patent GB-563224-A (GB)
Title: A universal fixture mounting for trough lighting fittings
IPC: F21V21/02
Filed: 1943-02-03
Abstract: 563,224. Lighting fitting supports. REVO ELECTRIC CO., Ltd., and REEVES, R. Feb. 3. 1943, No. 1763. [Class 75 (iii)] Trough lighting fittings are supported by two separable cranked strip members b, d of substantially similar outline and dimensions, the member b being secured by screws c to the trough a of the fitting and having interlocking engagement with the member d which is suspended from the ceiling &c. by a tubular rod e, chains, or links, or attached to a junction box on the wall or ceiling. The interlocking engagement between the members b, d, may be provided by inwardly or outwardly projecting pins d<1> on the end flanges d<2> of the member d engaging bayonet or upwardly directed slots b<2> in the end flanges b<1> of the member d. The member d may be provided with depending longitudinal. flanges so that when assembled the fixture mounting has the appearance of a closed rectangular box.
Patent GB-1278781-A (GB)
Title: Device for grinding surfaces on articles
Inventor: MILLAR WILLIAM FERRIER
IPC: B24B49/04
Filed: 1969-06-14
Abstract: 1278781 Grinding machines PANMURE TOOL & ENG CO Ltd 14 June 1969 1769/68 Heading B3D A grinding device comprises a setting gauge 14 having a pair of setting surfaces 17, 18, the surface 17 being at a level to which the grinding surfaces of grinding wheels 3, 4 are set prior to grinding, the surface 18 being at a level to which a downwardly facing surface of an article to be ground is set, and the difference in level of the two surfaces being equal to the amount of material to be removed from an article in the entire grinding operation. The grinding wheel 3 is a coarse wheel, and the grinding wheel 4 is a fine wheel for finish grinding. The wheels are independently rotatable about vertical axes above a table 1 and are independently adjustable vertically. As described, cup-shaped wheels 3, 4 are mounted on armature shafts 5, 6 of electric motors 7, 8. Each motor is mounted on a slide which is vertically adjustable by a calibrated hand control 13. In use of the device, a wheel dressing device is placed on the table 1 and is adjusted until its wheel-dressing head rests on the surface 17. The wheels 3, 4 are then adjusted to vertical positions such that when the wheel-dressing device is resting on the table 1 and applied to them the wheels are fully dressed. Thus the surfaces of wheels 3, 4 are dressed to be level with surface 17. An article to be ground is then placed in a vertically adjustable portion of a clamp rested on the table 1, and the position of the article is adjusted until its surface to be ground touches the surface 18. The clamp, still resting on the table, is moved so that the article is traversed across the wheel 3 until sparking ceases, and then across the wheel 4 for finish grinding.
Patent GB-444314-A (GB)
Title: Improvements in clocks and watches
IPC: G04B19/23
Filed: 1935-11-09
Abstract: 444,314. Timepieces. BRITTON, H. L., 19, Basing Way, Thames Ditton, Surrey. Nov. 9, 1935, No. 1804/36. Divided application. [Class 139] A timepiece is provided with a minute hand 2 and two hour hands 5, 6, differently coloured and disposed on a ring 3 secured by its diametral arm 4 to the boss of the hour whee], to indicate "Summer" and " Winter " time respectively.
Patent GB-1035663-A (GB)
Title: Improvements in or relating to securing screws
IPC: F16B35/04
Filed: 1963-01-15
Abstract: 1,035,663. Bolts; preventing overtightening. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 15, 1963 [Jan. 18. 1962], No. 1805/63. Heading F2H. A re-usable torque limiting screw for joining two bodies, at least one of which is capable of withstanding a mechanical stress which does not exceed a predetermined value, is made of polythene or similar elastically deformable synthetic material having such resilience that in use, at a predetermined applied torque, the threads of the screw can by elastic deformation slide back over the threads with which the screw co-operates. The area of cross-section of the screw is reduced to allow deformation to take place by removing the thread at one or more longitudinal areas or by providing an axial bore in the threaded portion.
Patent GB-444666-A (GB)
Title: Improvements in electrical fuses
IPC: H01H85/045
Filed: 1935-01-19
Abstract: 444,666. Fusible cut-outs. BAGGS, H. G., Ordsal Electrical Works, Salford, Lancashire. Jan. 19, 1935, No. 1823. [Class 38 (i)] The fuse carrier A has the lower contact E of usual blade form but the upper contact consists of a plug B pivotally mounted at C and adapted to enter an inclined socket G in the base H. A spring such as D may bias the plug for easier assembly.