baber/WOPTO huggingface dataset:
Patent GB-202746-A (GB)
Title: Improvements in electric transmission systems
IPC: H01B11/12
Filed: 1922-05-29
Abstract: 202,746. Taylor, A. M. May 29, 1922. Addition to 195,429. Systems depending on the use of static transformers; feeder connections; polyphase systems. -In an electric supply system employing multicore concentric cables and in which substation transformers are employed to feed capacity currents into the outer cores of the cables, the lagging component of the motor load on the system and reactance coils are arranged to balance the leading magneto-motive-forces in the cores and to avoid resonance. The secondary windings a<11>, b<11>, c<11>, Fig. 1, supplies a motor load L and a star-connected transformer ABC is connected to the central cores of the six cables UC. Each phase of the transformer ABC is provided with two secondary windings S<1>, S<2> the former of which supplies a load L<1> and is connected to the outer cores of the cables. A further winding may be provided to supply the outer cores of the cable with the charging current. The secondary winding S<2> is connected to a reactance X. In the arrangement shown in Fig. 2, a reactive load X<2> is supplied by the secondary winding S<1> of the transformer ABC and the charging current is supplied by the secondary winding S<2> of an auxiliary transformer A", B", C". A second winding S' is connected to a reactance X<1>. Specification 170,619 is referred to.
Patent GB-1276993-A (GB)
Title: Nuclear reactor core monitoring system
IPC: G21C17/108
Filed: 1971-05-14
Abstract: 1276993 Reactors BABCOCK & WILCOX CO 14 May 1971 [11 June 1970] 15007/71 Heading G6C In a nuclear reactor monitoring system, temperature and neutron detectors are inserted into the reactor along a passage which extends between the core and an external handling station. The instrumentation assembly, X, is urged along the pressure tight tube, 11, from the station, S, into the reactor core, 12, passing the biological shielding, B, at the bends 13, 14. The monitoring functions are effected by solid state detectors and to provide transfer of the electrical output signals of the detectors the lead wires are connected to an external multi-conductor plug. Individual neutron detectors are spaced so as to sense neutron flux distribution over an axial length range.
Patent GB-651549-A (GB)
Title: Yarn tensioning device
IPC: B65H59/24
Filed: 1948-06-03
Abstract: 651,549. Yarn tensioning devices. SPECIALTIES DEVELOPMENT CORPORATION. June 3, 1948, No. 15019. Convention date, Aug. 22, 1947. [Classes 120(ii) and 120(iii)] A device for tensioning yarn comprises a pair of relatively movable members for receiving yarn therebetween, resilient means for urging said members apart, means acting in opposition to said resilient means for moving said members toward each other, and means for operating said last mentioned means, responsive to the output tension of the yarn. As shown, the device comprises a base 15; a stem 19 fixed thereto by a nut 20 and a substantially cylindrical cam member 21 screwed on to the stem 19; a housing 27 rotatably mounted on the base 15; a cup like retainer 31, having an aperture 32 for receiving the stem 19 and a circular recess 34 for receiving the cylindrical section 29 of the cam member 21, and which is rotatably mounted with respect to the stem 19 and cam member 21; an arm 12, one end of which is secured tangentially to the retainer 31 and which is adapted to rotate the retainer 31 in response to the output tension of the yarn extending over yarn guide means 40 at the free end of the arm; two discs 10 and 11 mounted for lateral movement on the stem 19 and relatively urged apart by a helical spring 51; and a lock nut assembly 53 which retains the disc 11 against outward movement and which may be adjusted to enable the discs to accommodate yarns of various diameters. In action, increase in yarn tension lifts the arm 12 which rotates the retainer 31 thus permitting balls 36 to ride down the cam surfaces 30 of the cam member 21 and move away from the thrust ring 37 thereby permitting the spring 51 to effect moving apart of the discs 10 and 11 and lessening the pinch on the yarn. The reverse process occurs when the yarn output tension decreases. Rotation of the retainer 31 by the arm 12 is opposed by a flat spiral spring 41, one end of which is anchored to the retainer and the other end to the housing 27 so that relative positioning of the housing 27 on the base 15 determines the tension of the spring 41 and thus, through the cam member &c., provides a predetermined pinching effect on the yarn between discs 10 and 11. The housing 27 can be fixed to the base 15 in the set position by set screw means 28. Indicating means is provided to enable settings at desired tensions to be repeated. This means comprises indicia on the rim of housing 27 and index marks on an indicator member 56 slidable in a groove 17 in the base 15. The member 56 slides in the groove 17 by means of a projection on it engaging a spiral groove 59 in the housing 27.
Patent GB-545289-A (GB)
Title: Improvements in or relating to rosin size emulsions
IPC: C11D15/00
Filed: 1940-10-09
Abstract: 545,289. Rosin sizes; making emulsions. JACKSON, L. MELLERSH- (Hercules Powder Co.). Oct. 9, 1940, No. 15063. [Classes 1 (i) and 91] A stable high free rosin size emulsion is produced from an aqueous emulsion or dispersion of the substantially completely saponified rosin, the emulsion having a free rosin content of less than 35 per cent., by passing an acidific gas therethrough preferably with agitation of the emulsion. The gases or vapours specified comprise carbon dioxide, sulphur dioxide, acetic acid fumes, chlorine or hydrochloric acid gas ; the CO, may be used in the form of flue or stack gas or dry ice (solid CO 2 ). The free rosin content is raised to a content of 65 to 95 per cent. The saponified rosin paste is heated under agitation with water to form the initial emulsion and to disperse the free rosin formed by hydrolysis ; a mixture of 1-20 per cent. solids is preferred. Colloidal stabilizers, in the amount of 1 to 25 per cent. of the solids content in the emulsion may be added. The stabilizing agents specified comprise casein, soya bean protein, or animal glue; the stabilizer may be added to the paste or to the emulsion. The CO 2  may be used from cylinders of the compressed gas. Illustrative examples are given.
Patent GB-475895-A (GB)
Title: Chromium steels
IPC: C22C38/40
Filed: 1936-05-29
Abstract: An alloy steel described in the parent Specification containing not more than 1 per cent of carbon, 12-35 of chromium and at least 0,2 and not more than 0,65 of nitrogen also contains 0,25-3,0, preferably not over 2,5, of nickel or copper or a mixture of both.
Patent GB-456908-A (GB)
Title: Improvements in or relating to the manufacture of tubes and other hollow articles from thermoplastic compositions
IPC: B29C53/48
Filed: 1935-05-24
Abstract: 456,908. Cellulose &c. tubes. CELLULOID CORPORATION, 290, Ferry Street, Newark, New Jersey, U.S.A. May 24, 1935, No. 15238. Convention date, May 24, 1934. [Class 99 (ii)] [See also Group V] A tube or other hollow article is formed from a thermoplastic composition by passing a softened strip 10 longitudinally through a passage such as a metal tube 16 so as to cause the strip to assume the shape of the interior of the passage with its edges abutting, and hardening the shaped article. The composition may have a cellulose derivative basis and various examples are given. The strip may be softened in a tank 12 of water or other liquid heated by electric or other means. The metal tube 16 may have a cooling jacket 17 insulated at 18 as bv asbestos or cork and brine or cold water may be circulated through the jacket. The end of the strip may be tapered at 11 and attached by a hook 14 to a cable 15 for pulling it through the tube. The tube 16 may be shaped in cross-section as required and it may be circular at the entrance and of star or other shape at the other end. For thin strips, the longitudinal edges thereof may be perpendicular to the strip, but for thicker strips they may be scarfed. After the strip is shaped and set, it may be placed in a solvent bath and the seam opened by running a blade therethrough to allow the solvent to penetrate, the seam closing up after the blade. The strip may be composed of layers of different appearance or composition or both and it may be transparent over part of its width to produce an article with a transparent window. Various examples of solvent are given such as chloroform or acetone, or a cement may be used such as a vinyl or cresyllic resinous product, a cellulose derivative or a rubber adhesive. The shaped tube may be further shaped as by drawing or expansion. Various examples are given of plasticizers, pigments, fillers, ornamental material and fire retardants which the composition may contain. Optical tubing may be produced, the seam being then left open and a metal rim or rod inserted. Covered rods may be produced by feeding the rod through the shaping passage simultaneously with the strip.
Patent GB-296810-A (GB)
Title: Improvements in or relating to the supporting of boots or shoes for sole laying or levelling
IPC: A43D89/00
Filed: 1927-06-09
Abstract: 296,810. British United Shoe Machinery Co., Ltd., and Keall, F. B. June 9, 1927. Sole-laying; sole-levelling.-Relates to last supports of the kind described in Specification 237,331 for sole laying or levelling machines, comprising means.to support the heel and toe ends of the shoe and additional means to 'support the shoe between these ends, and consists in means for automatically moving the additional means into engagement with the shoe and locking them in operative position, preferably as an incident to the putting of the machine into operation. The mechanism is described applied to the machine described in Specification 107,614. The intermediate supports comprise pads 1, one on each side of the shoe, self adjusting about a ball 2 and retained by a spring 5. Each pad is carried on a bell-crank lever 3 pivoted at 8 to the heel end support, the other arm 11 of the lever being short and linked to a member 14 sliding on a rod 15. A spring 16 normally depresses the member 14 to abut against a fibre washer 19, the head 18 of the rod 15 being connected by a ball joint with a plunger 21 pressed upwards by a strong spring 24 to a position determined by a stop 27. The two levers 3 are connected by a shaft 32, having a quick pitch thread 33 at one end and ball thrust bearings 34, 35 at the other, and carrying a ratchet wheel 36 engaging a pawl 29 provided with a pin positioned under a projection 43 on a lever 44 connected by a link 46 with one of the heads 18. In operation, the shoe is positioned on the heel and toe supports. When the machine is started, the laying or levelling pressure on the sole of the shoe depresses the last, and with it the pivots 8, causing the pads 1 to swing towards the shoe and the quick pitch thread 33 to rotate the ratchet wheel 36 which is finally locked by the pawl 29. When the operation is complete, on the sole pressure being released, rise of the pivots 8 causes retraction of the pads 1, the pawl 29 being freed by the projection 43.
Patent GB-1278722-A (GB)
Title: High speed feed mechanism for cylindrical containers
Inventor: MENCACCI S A
IPC: A23L3/00
Filed: 1970-04-01
Abstract: 1278722 Conveying and transferring food container cans INTERNATIONAL MACHINERY CORP SA 1 April 1970 [3 April 1969] 15337/70 Heading B8A Cans C standing on a conveyer belt on their ends in random spacing are turned over and combined into rows into a position with their longitudinal axes being disposed horizontally. Each lane of cans is fed between upper and lower speed-regulating belts 70 and 72. Each of the lanes is flanked by guide members 90 (Fig. 5), the lateral spacing of which is adjustable. The guides 90 have tongues 95 which engage and stop containers which are wrongly orientated. The lanes feed into respective twisting guides 75. The latter transfer the cans on to platforms 76 respective to each lane, and are mounted so as to pivot clockwise under the weight of three or more cans. This operates a micro switch 156 in the circuit of a container brake plate operating-cylinder or solenoid 100. Thus bunching of the cans at the outlet of the twisters 75 causes a hold up of the supply, upstream of the associated lane. The platforms 76 are flanked by guide members 90 (Fig. 5) the lateral spacing of which is adjustable. From the platforms 76 the cans pass on to a single transverse-bar endless conveyer 77, rows being formed as indicated in Fig. 4. The rows are then fed into compartments 43 of a cooker conveyer by the action of a feed wheel 176. The cooker conveyer discharges treated containers on to a transverse-bar conveyer 194. In the modification of Figs. 7 and 8, in which glass jars are conveyed instead of cans, the brake plates 68 and associated platforms 76 are replaced by feelers (262), (Fig. 6, not shown) respective to each lane. The latter are positioned just upstream of the twisters 75 and operate microswitches if the jars increase their spacing to a predetermined degree. The microswitches control the drive of feed wheel 224 which replace the single feed wheel 176 of Figs. 1-4. There is a feed wheel 224 respective to each lane and each has a clutch 234-238 (Fig. 8) operated by a solenoid 252 in the circuit of the respective microswitch. The feed wheel is slidable on a common drive-shaft 222 and carries the clutch portion 234. The latter has axial projections which engage with recesses on the clutch portion 238 when the associated solenoid 252 is energized.
Patent GB-980264-A (GB)
Title: Process for the manufacture of polyolefines
IPC: C08F10/00
Filed: 1961-04-27
Abstract: One or more alpha-olefines containing 2 to 8 carbon atoms are polymerized in a hydrocarbon medium with a catalyst comprising a compound of a transition metal of atomic number from 22 to 92, and selected from Group IV, V, or VI of the Mendeleeff Periodic Table, and an organo-metallic compound or hydride of a metal of Group I(a), II(a), or III(a) of the Periodic Table, and the molecular weight of the product is controlled by carbon dioxide alone, or in conjunction with another known regulator, e.g. an organic halogen compound, and hydrogen.  The carbon dioxide is preferably introduced with the monomers, e.g. mixed with ethylene.  The preferred catalyst is diethyl aluminium chloride, and TiCl3 made by reducing TiCl4 with an organometallic compound. In the examples, the polymerization of ethylene, propylene, and a mixture of ethylene and propylene, are exemplified.  The polymers are recovered by conventional techniques, e.g. addition of butanol.
Patent GB-313437-A (GB)
Title: An improved electric lamp for lighting
IPC: H01K1/26
Filed: 1929-05-16
Abstract: 313,437. Fekkes, H. June 11, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Reflectors within bulbs. -Reflectors 3, 4, adapted to cover as much as possible of a horizontal filament 1, are provided within a lamp bulb and produce a conical beam of light.
Patent GB-809069-A (GB)
Title: Improvements in or relating to processes of manufacturing luminescent silicates
IPC: C09K11/66
Filed: 1955-05-27
Abstract: 809,069. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 27, 1955 [June 2, 1954], No. 15374/55. Drawings to Specification. Class 39(1). A process of preparing a barium-zinc-silicate activited by lead and emitting short-wave U.V. radiation of 2900‹A, 3030‹A or greater in a lowpressure gaseous and/or vapour discharge tube producing radiation of 2537‹A, comprises mixing compounds of Ba, Zn, Si and Pb in which the atomic ratios of Ba, Zn, Si and Pb to the total atoms of Ba, Zn and Si are between 0À10 and 0À17, 0À30 and 0À45, 0À42 and 0À60, and 5 x 10<SP>-2</SP> and 10<SP>-6</SP>, respectively, and heating to a temperature between 900‹C. and 1100‹C. in air for some hours. The Ba, Zn and Pb compounds can be oxides, nitrates or carbonates. The Pb compound can alternatively be the fluoride, part of which acts as a flux. The Si compounds is preferably the oxide. Several examples are described and an X-ray diffraction diagram of the product given. The examples given involve atomic ratios of Ba : Zn : Si of 1:2:3, 1:3:4 and 1:3:5. Specification 669,380 is referred to.
Patent GB-155328-A (GB)
Abstract: 155,328. General Electric Co., and Gossling, B. S. Aug. 14, 1919. Thermionic relays; amplifying systems.-Variations of electric potential of a pericdic or non- periodic character are amplified by a cascade arrangement of amplifiers, preferably thermionic valves, interconnected by resistance couplings, the filaments of the valves being heated by a common battery, which may have one terminal earthed. A single high-potential battery may also be used for all tho valves, with current-heating devices placed in the plate circuits. In the arrangement shown in Fig. 1, the filaments bare heated by a common battery B1, and the plates a are connected to the negative ends d of the filaments through batteries B2 and resistances R2, the batteries being placed between the plates and the resistances. The grids c are connected to a suitable point e on the plate battery B2 of the proceding valve, the potential of the selected puint e being equal to that of the negative end d of the filament or differing therefrom by a suitable amount. The point e may be on a high resistance connected across the whole or part of the battery B2. In a modification shown in Fig. 3, a single plate battery is used for all the valves, a potentiometer resistance P2 being connected across the battery, and the leads thereto including currentlimiting devices L. These devices may comprise iron-wire resistances adapted to pass a constant current over a considerable range of terminal voltage, or may be two-electrode thermionic valves of low impedance worked bevond the saturation point. All the current-limiting devices should have the same saturation current. In another arrangement shown in Fig. 5. the limiting-device on the positive side of the plate battery B2 is a soft three-electrode valve L, with its grid connected to the plate of the main valve and its plate connected to the positive side of an auxiliary battery. The plate and grid currents of the valve L, are both beyond the saturation value. Fig. 6 shows a modification in which the connexion from the plate of the first valve to the grid c of the second valve is made through a resistance R3 having a current-limiting device L in series with it. An extension B3 of the plate battery B2 has its negative end connected to the current-limiting device L. In this case the potential of the grid c can be adjusted by varying the saturation current of the device L, or by varying the voltage of the extension battery B3. The same batteries B1, B2, B3 serve for all the valves. If the devices L, Fig. 6, are two-electrode valves, their filaments may all be heated by the same battery B6, Fig. 7. The leads from this battery to the filament may include a series current-limiting resistance R5 preferably of iron wire, and an adjustable resistance R4 in shunt to the filament. In this way the heating of the filament, and consequently the saturation current, is rendered independent of small variations in the voltage of the battery B6. The amplifying valves may have photo-electric. instead of incandescent, cathodes, and magnetomicrophonic relays may replace the valves.
Patent GB-238049-A (GB)
Title: Improvements in apparatus for indicating and gauging the operation of steam condensers
IPC: F01D17/02
Filed: 1924-06-30
Abstract: 238,049. Rissmann, H. June 30, 1924. Dials and scales.- An electrically operated instrument for indicating the working of steam condensers is provided with three scales, one pointer, moved by a cross - coil ohmmeter working over either a vacuum scale or an efficiency scale, while a second pointer is moved over a third scale bv a millivoltmeter or milliammeter to indicate the condition of the condensate. In another modification, a millivoltmeter is provided with the three scales over any of which a single pointer moves.
Patent GB-1381954-A (GB)
Title: Air cushion supported devices
IPC: B60V3/02
Filed: 1972-04-05
Abstract: 1381954 Air cushion vehicles UNIFLO SYSTEMS CO 5 April 1972 [15 April 1971] 15699/72 Heading B7K An air cushion device has a plurality of individual flexible inflatable pads 61-63 forming separated cushion chambers 25 under the pads, each pad having a peripheral pad chamber 24 surrounding the cushion chamber 25, means 27 to permit fluid communication between the cushion chamber and the pad chamber of each pad, and second means pneumatically connecting each pad chamber to the cushion chamber formed by another pad on the device to provide a pad chamber pressure signal separate from its own cushion chamber pressure. The second means comprises a plenum chamber 30 for each pad with a one-way valved aperture 32 connecting the plenum chamber with the pad chamber 24 and an aperture 31 connecting the plenum chamber with the cushion chamber 25. The plenum chambers 30 are connected together as by conduits 36 so that each of the chambers is connected to at least two of the pads (Fig. 2, not shown) thereby providing transverse and fore and aft stabilization. In an arrangement providing different stiffnesses of pads with respect to pitch and roll, Fig. 5, the pad cushion chambers are open through respective orifices 60A, 61A, 62A, 63A to a plenum chamber 60B, 61B, 62B, 63B. The pad chamber 24 of each pad is also connected to its respective plenum chamber through check valves. The plenum chambers are connected through metering orifices 66A, 66B, 67A, 67B and the relationship between the sizes of all the orifices is chosen to give a given stiffness about the roll and pitch axes 64, 65.
Patent GB-594377-A (GB)
Title: Improvements in and relating to contact plates for electric battery lamps
IPC: H01M50/543
Filed: 1945-06-20
Abstract: 594,377. Battery lamps. WOLF SAFETY LAMP CO. (W. MAURICE,), Ltd., and ROEDEL, P. A. June 20, 1945, No. 15710. [Class 39 (ii)] A rotary switching contact plate 1 for use in battery lamps of the kind employed in mines, comprises a disc of insulating material with a shallow recess on its underside to receive a pair of resilient metal contact plates 3, 4 of segmental form with arcuate portions arranged to bear on the terminals of a battery, the ends 3b and 4b respectively of the arcuate portions being turned inwardly and received within depressions in the recessed plate so that the intermediate portions can ride smoothly on to the battery terminals. The segment 3 is formed with a radial extension 3a, and segment 4 with two fingers 4a, all of which terminate above slightly raised bosses or islands on the recessed underside of the plate 1 and are secured thereto by screws 5, thus increasing the resilient effect of the contacts. The resilience may be increased further by small helical springs 9 located in recesses in the plate 1. The adjacent end portions 3b, 4b of the contact segments are separated by gaps in the plate.
Patent GB-151361-A (GB)
Title: Improvements in glass bait
IPC: C03B15/14
Filed: 1919-06-23
Abstract: 151,361. Marks, E. C. R., (Universal Glass Co.). June 23, 1919, Drawing.-Relates to a bait for drawing glass cylinders, having movable portions to allow for the contraction of the glass and to release the finished cylinder. The bait is charged with molten metal by suction. The bait consists of a plate 23, having a depending conical fiange 24 and three sectors 3, 4, 5, radially movable by cams operated by a handle 16. The plate 23 is movable axially by a cam-plate 18 fitted with a handle 30. In operation, the sectors 3, 4, 5 are closed and the plate 23 lowered to the position shown by dotted lines in Fig. 1. The bait is then lowered into the molten metal and the air exhausted from the annular space between the flange 24 and sectors 3, 4, 5 through pipes 32, 33, 35 so as to draw up the metal. As the draw proceeds and the cylinder head contracts, the plate 23 is raised to relieve strain. The finished cylinder can be removed by opening the sectors 3, 4, 5.