baber/WOPTO huggingface dataset:
Patent GB-631725-A (GB)
Title: Improvements in apparatus adapted to measure or compare sinusoidal functions, with particular reference to the actuation of protection devices for electrical distribution networks
IPC: H02H3/30
Filed: 1945-06-29
Abstract: 631,725. Phase-difference measurements. UNION D'ELECTRICITE. June 29, 1945, No. 16651. Convention date, April 14, 1942. [Class 37] [Also in Group XXXVII] In a system for comparing the phases of A.C. voltages, the voltages to be compared are applied to dry contact rectifiers respectively adapted to be fed with the sum and the difference of the voltages, the rectifiers feeding respectively two resistances which yield corresponding voltages which are combined to provide a direct voltage which is proportional to the phase difference. Such a system is shown in Fig. 3 wherein voltage U1=bu is fed to transformer T1 having four secondaries a ... d, and the other voltage is fed to reverselyconnected transformers T2, T3, each of which has two secondaries, a<1>, b<1> and all, b<11>. Rectifiers 21 ... 24 are so connected that one half of the system performs the addition ai+bu and the other, the subtraction bu - ai, thereby providing a direct voltage w across terminals G, H. The sign of this voltage varies with the phase angle # between the voltages U1, U2, i.e. when they are in phase it is positive, and when antiphased it is negative, the voltage w being zero when Ul, U2 are 90 degrees out of phase, and therefore either relay m, or m<2> is energized according as to whether G or H is positive. The angular lag of voltage along a section of a network may be measured by the use, at one end of the section, of a comparator as described aboye, the output being applied to a phase-meter (Fig. 6, not shown). The Specification as open to inspection under Sect. 91 comprises also a modification wherein the rectifiers are replaced by thermionic valves. The subject-matter of Specification 631,726, [Group XXXVII], is also included. This subject-matter does not appear in the Specification as accepted.
Patent GB-223841-A (GB)
Title: Wire spoked wheels
IPC: B60B1/02
Filed: 1924-07-11
Abstract: 223,841. Ferrabino, E. July 11, 1924. Addition to 206,787. Suspension-spoke wheels.-A wire spoked wheel of the kind described in the parent Specification comprises spokes arranged in three rows. The spokes 13 of one row are anchored near one edge of the rim 1 and the corresponding edge of the nave 10, the spokes 14 of the second row are anchored near the same edge of the rim and near the opposite edge of the nave, and the spokes 15 of the third row are anchored near the other edge of the rim 1 and the corresponding edge of the nave 10.
Patent GB-896407-A (GB)
Title: Method and apparatus for the application of electrical energy to organic substances
IPC: E21B43/24
Filed: 1960-05-12
Abstract: 896,407. Heating oil or gas bearing formation rocks dielectrically. PETRO-ELECTRONICS CORPORATION. May 12, 1960 [May 25, 1959], No. 16728/60. Class 39(3) [Also in Group XXI] In a method of fluidizing or reducing the viscosity of an organic substance in the vicinity of another material, electromagnetic radiation is directed into the material to heat it dielectrically and the material thus heated in turn heats the organic substance. In a particularly application a subsurface oil or gas bearing formation of rock is heated to heat the oil or gas therein by inserting a microwave generator into well-bore and directing the energy generated into the formation. A microwave generating unit housing 16, Fig. 1A, is mounted on a tubing which is attached to the end of perforated production tubing member 15, Fig. 1, attached to production tubing 14; power cable passes into the connecting tubing which is centrally located within the well bore 10 by vaned member 19. The housing 16 may contain a number of klystron, magnetrons or amplitrons mounted in vertically spaced relation - in the particular arrangement shown the microwave generators are magnetrons. Attached to the body of the housing 16 is a further tubular member on which is mounted centreing vane 21, Fig. 1B. Specification 896,406 is referred to.
Patent GB-714545-A (GB)
Title: Preparation and stabilisation of aralkyl hydroperoxides
IPC: C07C407/00
Filed: 1952-07-03
Abstract: Aralkyl hydroperoxides of the general formula <FORM:0714545/IV (b)/1> where Ar represents an aryl group and R1 and R2 are alkyl or aryl groups, or one of the groups R1 and R2 may be a hydrogen atom are stabilized at temperatures above 50 DEG  C. by being maintained in vessels of which the surfaces in contact with the hydroperoxides consist wholly or mainly of copper, silver or gold or of an alloy in which such metal or metals predominate. The preferred modification of the invention comprises the preparation of the hydroperoxides by oxidizing a liquid aromatic hydrocarbon with an oxygen-containing gas preferably in a non-aqueous system, the process being carried out for example in vessel equipped with a stirrer, the surfaces of vessel and stirrer which are in contact with the liquid reactant being of copper or a copper alloy.  In examples (1) cumene hydroperoxide is stabilized by being stored in copper tubes; (2) and (3) cumene is oxidized to cumene hydroperoxide in copper apparatus; (4) di-isopropyl benzene is oxidized as in 2; (5) p-cymene is oxidized as in (2); and (6) cumene is oxidized to cumene hydroperoxide in silvered apparatus. Specification 663,445, [Group IV (a)], is referred to.
Patent GB-860893-A (GB)
Title: Improvements in or relating to glass compositions
IPC: C03C3/17
Filed: 1957-05-27
Abstract: 860,893. Glass compositions. COMPAGNIE DE SAINT-GOBAIN. May 27, 1957 [May 25, 1956 ; May 6, 1957], No. 16818/57. Class 56. [Also in Group XXII] A glass composition, particularly for use as a lubricant in the extrusion of metals at high temperatures, comprises essentially in molecular percentages PzOs + B 2 O 3  29-61% wherein the content of B 2 O 3  is from 0-10% ; Al 2 O 3  + a metal oxide of formula R 2 O 3  10-20% wherein the R 2 O 3  is from 0-5% ; oxides of alkali metals R 2 O 9-33% ; oxides of divalent metals RO 16-20%; the total R 2 O + RO not exceeding 50% and when including PbO, the content of the latter not exceeding 5% Na, K and Li are specified for the alkali metal ; Ca, Ba, Mg, Zn and Pb for the divalent metal and Fe or G for the R 2 O 3 . Particular examples are given.
Patent GB-421408-A (GB)
Title: Method of coking hydrocarbons
IPC: C10B55/00
Filed: 1933-06-13
Abstract: <PICT:0421408/III/1> Recycled condensate from a bubble tower 14 of an oil-cracking plant is heated in the hotter section of a pipe still 11 to a preferred temperature of 578--593 DEG  C. (at least 482 DEG  C.) before admixture with fresh stock, preheated to a temperature of 427--482 DEG  C., the mixture being then coked in an externally heated coke oven 12.  The preheated stock may be passed directly to a cleaning tower 13, disposed between the coke oven and the bubble tower, wherein the oven vapours are preliminarily cleaned and to which condensate from the tower 14 may be supplied through the reflux line 45.  Heavy distillate from the cleaning tower may also be recycled to the coke oven through line 50 by a pump 51. Gasoline may be drawn off from a separator 15 or returned to the bubble tower through a line 36; gas collecting in the same vessel may be passed to storage through a line 27 or is byepassed to the heating flues of the coke oven and pipe still.  In a modification, the tower 13 is replaced by a bubble tower connected to the top of the coke oven, to which heated recycled condensate and fresh stock are supplied before being introduced to the coking chamber. Specifications 348,764 and 373,239 are referred to.
Patent GB-302551-A (GB)
Title: Improved arrangement for the electric control of railway points, or other traffic regulating devices which are required to remain in one position until each passing train completely clears them
IPC: B61L23/22
Filed: 1928-06-11
Abstract: 302,551. Underwood, W. J. June 11, 1928. Electric control; electrically controlled by vehicle.-Railway points or gates are controlled by an electromagnet having both a lifting-winding 12 and a holding- winding 13 with separate sources of current 29, 10, the circuit of the winding 13 and battery 10 being closed by the armature 14 and including a parallel track section 47, 48 so that a passing train short-circuits the battery 10 and enables the points to return to normal position. The hand-lever 21, described in Specification 180,757, [Class 105, Railway signals &c.], has a permissive position to the left, for the adjacent station on the right, and an operative position to the right. In the latter position, a circuit is completed from battery 29, lead 28, contacts. 22, 24, lead 31, winding 12 and leads 42, 35 to the contacts 36, 27, 25 of the adjacent station and back by rail 1 and lead 45. Armature 14 then closes contacts 16 to form a circuit from battery 10 through leads 17, 43, 44 to winding 13 and reverse coil 9 of the motor 7. When the points are reversed, a circuit is then completed from battery 29 and lead 31 through lead 38, contacts 39, trip and signal coils 40, 41 to lead 35. The train on arrival at section 47, 48 closes a circuit through leads 49, 46 to short-circuit the battery 10 so that armature 14 falls and completes a circuit from battery 10, lead 18 and contacts 15 to normal coil 8 and lead 20 to restore the points to their normal position. A train on section E completes a circuit from rail 2 to rail 5, lead 33, contacts 26, 25 and leads 32, 45 to rail 1 which shortcircuits the battery 29 at the next station through its lead 30, contacts 23, 22 and lead 45 so as to prevent the operation of those points, rails 1, 5 being insulated at C. Specification 259,836, [Class 105, Railway signals &c.], also is referred to.
Patent GB-758221-A (GB)
Title: Circuit control apparatus
Inventor: DONATH EDWIN WILLIAM
IPC: G05B11/01
Filed: 1954-06-09
Abstract: 758,221. Automatic temperature control systems; transformers. ILLINOIS TESTING LABORATORIES, Inc. June 9, 1954, No. 16982/54. Classes 38 (2) and 38 (4). [Also in Group XL (c)] Apparatus for maintaining the temperature of an electrically-heated furnace constant comprises a thermocouple in the furnace connected to a galvanometer 61 having a needle 62 on the end of which is a conductive loop. 51. When the current in the galvanometer is such that the loop is positioned between the coils 36, 37 of an oscillator it produces sufficient positive feed-back between the coils to offset the direct negative feed-back between them and to cause the circuit to oscillate. The consequent reduction in anode current of valve 11 causes a relay 26 to release and to cut off the current supply to the furnace. The two coils are supported with their tuning capacitors on a block 88 which is mounted on a pivoted arm so that the position of the coils along the path of the pointer is adjustable. A stop prevents the loop passing beyond the coils.
Patent GB-1476895-A (GB)
Title: Method of producing grain oriented electromagnetic steel sheet
IPC: H01F1/16
Filed: 1975-04-24
Abstract: 1476895 Heat-treating electrical steel NIPPON STEEL CORP 24 April 1975 [25 April 1974] 17000/75 Headings C7A and C7N [Also in Division B3] A method of making grain-oriented magnetic steel sheet comprises hot-rolling silicon steel having a Si content of less than 4À5% cold-rolling the sheet to the desired thickness in a plurality of stages, annealing the sheet in more than one operation including final high temperature annealing, working at least one surface of the sheet prior to the high temperature annealing to form a plurality of worked bands of width 1 less than 3À00 mm. separated by unworked bands of width w greater than 5À0 mm. whereby secondary recrystallization growth into unworked regions is inhibited by the worked regions. The preferred range of constituents of the steel is 0À040%-0À050%C, 2À90%-3À20% Si, 0À025%-0À035% and 0À027%- 0À030% acid soluble aluminium. The worked bands may be formed by mechanical means such as rolling, scribing or shot or grit peening with the unworked bands suitably masked. The bands may also be formed by irradiation using infra-red rays, laser beams or electron beams. Alternatively the bands may be applied in the form of a solution or slurry comprising a resist of, e.g. MnS, CrS, CuS, AlN, V 3 N 4 , Al 2 O 3  or selenides, antimonides, phosphoric acid or a phosphate, the slurry being applied by painting after cold-rolling and decarburization annealing of the sheet. Alternatively a high speed printer may be used to apply the resist in the desired pattern on the steel sheet. The presence of the worked bands controls the growth of the grains during secondary recrystallization occurring during the final annealing and thereby increases the magnetic flux density and reduces the Watt loss.
Patent GB-219968-A (GB)
IPC: A61B3/135
Filed: 1924-07-16
Abstract: 219,968. Zeiss, C. [Firm of]. Aug. 2, 1923, [Convention date]. Eye-examining apparatus.-An illuminating device for an apparatus for the examination of the eye comprises a source of light f for the illumination of a diaphragm h by the lens system g', g<2>, the whole being carried on a screwed rod d which may be vertically adjusted by the nut c. The lens o for the projection of an image of the diaphragm or the retina is supported in a carrier i mounted on the rod d. The small vertical adjustment necessary for the lens o is effected by the screwed cap r which actuates the screwed rod l supporting the lens o.
Patent GB-569309-A (GB)
Title: Improvements in or relating to electromechanical timing arrangements
IPC: H01H43/10
Filed: 1943-10-16
Abstract: 569,309. Time-alarm signals. ERICSSON TELEPHONES, Ltd., and WOOLLEY, J. Oct. 16, 1943, No. 17033. [Class 118 (ii)] A timing device (e.g. for telephone calls or for controlling a sequence of operations) comprises a rotating shaft 1 and a disc 2 carried by the armature of an electro-magnet which, on energisation of the magnet, becomes coupled to the shaft. The magnet circuit is closed by manually closing an external switch, and in the form shown in Fig. 1 the disc rotates clockwise (breaking contacts 9, 10 in the magnet circuit and closing contacts 12, 13-the latter now completing the magnet circuit) until a notch 15 engages the shaft thereby stopping the disc and completing a circuit to an alarm device through contacts 13, 14, the notch 15 permitting the armature 3 to rise a little further and disconnecting the drive between shaft 1 and disc 2. The alarm circuit is maintained until the magnet circuit is broken by manually opening the external switch, whereupon the armature falls away, breaks contacts 12/13 and 13/14, whilst a spring 6 rotates disc 2 reversely and recloscs contacts 9/10 in readiness for the next operation of the magnet circuit. In the form shown in Fig. 2 the contacts 9/10 are replaced by a contact 21 on the armature and contact 20a, the latter being one of a pair of contacts carried by an arm 17 frictionally engaging the disc 2 but capable of independent motion under a hair-spring. In this form contacts 13/14 are replaced by a fixed adjustable contact 22 and the other contact 20b of the pair carried by the arm 17. The arm 17 and disc 2 rotate together clockwise until the arm 17 strikes the contact 22, the disc continuing to rotate alone until the magnet circuit is broken whereupon the hair spring restores the arm 17 to the position shown.
Patent GB-794044-A (GB)
Title: Improvements in extrusion apparatus
IPC: B21C25/06
Filed: 1955-06-14
Abstract: 794,044. Extrusion machines. KNAPP MILLS, Inc. June 14, 1955 [June 22, 1954], No. 17074/55. Class 87(2). [Also in Group XXII] The extrusion apparatus comprises a block 15, Fig. 3, carrying a female die 48 and a male die 47 having a cylindrical hose or point 56 extending into the opening 51 of substantially uniform cross-section in the female die which opening is enlarged at 52 and a passage 43 extending through the block 15 transversely of the extrusion axis and containing a pair of opposed plungers 37, 38 which force extrusion material, contained between the plungers, to the dies. The extrusion material consists of preformed slugs of lead, rubber or a plastic. The block 15, Fig. 1, is mounted mid-way between uprights 11, 12 and is supported on lead screws 16, 17, 18, 19, which screws retain the block in its mid position but are rotatable relatively thereto. These screws 16, 17 and 18, 19 may each comprise a single screw with a central journal. The carriages 35, 36 carrying extrusion rams 37, 38 respectively, adapted to enter the bore 43 in the block 15, are mounted in screwed engagement with the lead screws. The screws 16, 18 have left-hand threads whilst the screws 17, 19 have right-hand threads whereby the carriages are moved simultaneously towards or away from each other upon rotation of the screws. At the end of the screws are mounted pulleys 22, 23 connected by belts 24, 25 with pulleys 26, 27 on the output shaft 28 of a reduction gear 29 driven through gearing 32, 33 by a reversible electric motor 30. The block 15 may be heated by four electric heaters 39, 40, 41, 42 in combination with a thermostatic control which also records the temperature of the material being extruded. For extruding lead a temperature of 350‹ to 600‹F., preferably 550‹F., is used. The plungers 37, 38 are moved inwardly to extrude the lead under pressures of 300 to 1000 tons per sq. inch. In another embodiment, Fig. 4 (not shown), for cladding a tube or rod with extruded material, the male die has a central bore through which the rod or tube passes. The cylindrical nose of the male die is omitted and the conical portion thereof extends directly into the opening of the female die. To assist in the adhesion or bonding of the extruded layer to the rod or tube, the latter may first be coated with a thin layer of tin, lead or antimonial lead which has been firmly bonded to the rod or tube by the use of a flux such as zinc chloride or stannous chloride. Example are given of the distance which male die extends into the female die in both embodiments and also of the proportions of the stepped bore of the female die.
Patent GB-571568-A (GB)
Title: Improvements in and relating to the moulding of boxes from laminations of felted fibrous materials impregnated with synthetic resins
IPC: B29C67/00
Filed: 1943-10-18
Abstract: 571,568. Boxes. EBONESTOS INDUSTRIES, Ltd., and AMIGO, A. Oct. 18, 1943, No. 17115. [Class 18] [Also in Group V] The stacked laminations F which are to be moulded into box form, are placed on a core b, and a pressing plate o, carried by a hydraulic ram p, descends to rest on and compress the bottom of the box. As the ram continues to descend, and whilst lost motion is being taken up between the plate o and the ram, a tapered frame j suspended from the ram plate n by pistons l and coacting with the four tapered mould sides c<1> ... c<4>, urges the mould sides inwardly to press the sides of the box against the core b. On further descent of the ram, the latter presses down the plate o to complete the compression of the box bottom, the pistons l being displaced within their cylinders m. The ram and the frame then rise, the plates c<1> ... c<4> being prevented from rising by the engagement of their bases with projections q on the mould base a. The laminations may be cut as shown in Fig. 5, the sides h<1> ... h4 being rhombs having triangular portions h<1>1 which overlap on to the adjacent side. All the laminations are of this shape, but adjacent laminal have their rhombs facing different ways, with the result that the meeting edges do not occur at the corners, which are formed of overlapping rhombs.
Patent GB-728967-A (GB)
Title: Steroids
IPC: C07J75/00
Filed: 1952-07-08
Abstract: The invention comprises 21-acyloxy-11a -hydroxy - 4 - pregnene - 3,20 - dione wherein the acyloxy group has the formula AcO, Ac being the acyl radical of an aliphatic or carbocyclic carboxylic acid containing from one to eight carbon atoms, inclusive, and the preparation thereof by reacting 11a , 21-dihydroxy-4-pregnene-3,20-dione with an acylating agent, e.g. ketene, a ketene of a selected acid, an acid, acid chloride or acid anhydride.  Examples disclose the production of esters obtained by using acetic anhydride, propionic anhydride, butyric p  anhydride, benzoyl chloride and b -cyclopentylpropionyl chloride. Specification 724,094 is referred to.  11a ,21 - Dihydroxy - 4 - pregnene - 3,20 - dione is obtained by the oxygenation of 21-acetoxy- or hydroxy-4-pregnene-3,20-dione by means of a culture of the fungus Rhizopus nigricans.
Patent GB-458121-A (GB)
Title: Apparatus for drawing off steam from multi-stage expansion steam engines
IPC: F01K7/36
Filed: 1935-06-14
Abstract: 458,121. Steam-extraction valves for engines. AKTIESELSKAPET FREDRIKSSTAD MEK. VERKSTED, Fredriksstad, Norway. June 14, 1935, No. 17194. Convention date, June 14, 1834. [Classes 122 (ii) and 122 (iii)] Comprises apparatus for extracting steam from multiple-expansion engines, especially compound Woolf engines. The high- and low-pressure cylinders 1, 2 have between them a distributing-valve 4 which controls the connection between the passages 5, 6 and the extractionsteam supply through a chamber 10 and a non- return valve 11. A valve ring 7 covers the passages 6 when passage 5 is opened and for a certain period thereafter during which steam passes off for auxiliary purposes. When the passage 6 is uncovered, the valve 11 closes due to fall of pressure.
Patent GB-1382385-A (GB)
Title: Game apparatus
IPC: A63F9/00
Filed: 1973-04-10
Abstract: 1382385 Indoor games M I GLASS [trading as MARVIN GLASS & ASSOCIATES] 10 April 1973 17241/73 Heading A6H A game apparatus comprises a housing 10 containing an electric circuit including two terminal portions 34a, 34b to be touched by players, batteries 16, a transistor T for activation when the terminal portions are conductively connected, a motorised bell 20, 30 actu able when the transistor is activated, and one slide switch e.g. 32a and 32b, for each player, the switches each having a plurality of conditions, e.g. two, such that the circuit can be closed only when the conditions of the switches match and the terminal portions are conductively connected. In use, a player A asks a question, requiring a yes or no answer, to a player B who secretly sets his switch 32b to a yes or no position; the player A then secretly sets his switch 32a to the answer he believes player B has set. Players A and B then grasp the respective terminal portions 34a, 34b and player A uses his free hand to touch player B on a part of the body, e.g. the nose, selected by spinning a spinner (14) Fig. 1 (not shown) mounted on the housing 10. If the positions of the slide switches match, sufficient current passes through the bodies of the players when player A touches player B to render transistor T conductive, whereby the bell 30 rings to indicate a correct guess by player A.