baber/WOPTO huggingface dataset:
Patent GB-1009050-A (GB)
Title: Improvements in or relating to hot tops
IPC: B22D7/10
Filed: 1962-05-22
Abstract: 1,009,050. Ingot moulds. SANDVIKENS JERNVERKS A.B. May 22, 1962 [May 25, 1961; Sept. 8, 1961], No. 19657/62. Heading B3F. A hot top slab comprises an angled lower portion and a bottom edge constituting a side face intended to contact the wall of the mould, and the end of the slab comprises a flange to hook over the top of the mould to enable the slab to depend from the mould with at least a lower portion of the slab spaced apart from the mould. The slabs, which may be faced or covered with exothermic material may be suspended from the top by the flange portions 13, Fig. 1, and maintained in position by wedges 15. The slabs may be curved, Fig. 5, and have a protrusion 22, Fig. 6, on the side facing the metal. The slabs are made of a finely divided refractory such as quartz, olivine, a finely divided organic material such as paper pulp, and a glue such as a resin glue. Asbestos, rock wool or other fibrous refractory may be added.
Patent GB-311592-A (GB)
Title: Improvements in or relating to tins and similar containers
IPC: B65D43/26
Filed: 1928-07-06
Abstract: 311,592. Hanbury, A. C. B. July 6, 1928. Cans and canisters; rims of openings. - To prevent the contents of a tin or box for blacking, ointment, paste &c. from exuding to the exterior of the container, a removable or integral internal ring or partition b is provided within which the contents are contained, the upper edge of the partition being engaged by the lid of the tin when in place. The ring may be of the forms shown in Figs. 3 and 4.
Patent GB-1513912-A (GB)
Title: Detecting rotation of a shaft
IPC: G01B21/00
Filed: 1975-05-12
Abstract: 1513912 Detecting rotation of a shaft ROBERT BOSCH GmbH 12 May 1975 [29 Aug 1974 27 Sept 1974] 19804/75 Headings G1A and G1N(A) A body 65 rotatable with the crank-shaft of an I.C. engine has two spaced apart reference points 68, 69 adapted to generate pulse signals of similar shape but opposite polarity in a sensor 25 the output of which is connected to a pulse shaper stage including at least one threshold value stage. The pulse signals may be generated magnetically or optically. Pulses from the sensor 25 pass via amplifier 29 to threshold stages 31, 32 producing square pulses in response to positive and negative going inputs respectively Figs. 6.2, 6.3 (not shown). Differentiators 10, 92 comprising AND gates 71 and inverters 72 supply output pulses for leading edge inputs only Figs. 12.2, 12.3, (not shown). The circuit further comprises AND gates 76, 97, 102, and flip-flops 75, 87, 105 comprising interconnected NOR gates. The output 80 Fig. 12.4 (not shown) of flip-flop 75 appearing at output terminal 110 is a voltage of duration corresponding to the angular displacement between permanent magnets 68, 69. The third magnet 70 preferably characterizing top dead centre of a piston has a recognition signal appearing at output 111 Fig. 12.6 (not shown). In a further embodiment Fig. 13 (not shown) the sensor output is connected to the threshold stages 31, 32 via an integrator (121). Stages 31, 32 apply a pulse to a flip-flop (125), which supplies a signal to an output (130) corresponding to the angular displacement between magnets 68 and 69. If the two magnets 69, 70 are of the same polarity the passage of magnet 70 past the sensor causes the stage 31 to emit a second signal and a corresponding signal is then supplied to a second output (150) by a second flip-flop 146. The integrator is reset via an AND gate (136) when signals simultaneously appear at the second output (126) of the flip-flop 125 and the output of threshold stage 32. In an alternative embodiment the permanent magnets are replaced by sources of differently polarized light and an optical sensor is used to produce different electrical signals depending on the polarization of the incident light.
Patent GB-858385-A (GB)
Title: Electrical switchgear for use in three-phase a.c. systems
IPC: H01H19/62
Filed: 1958-06-20
Abstract: 858,385. Arc - rupturing in switches. NAIMER, H. L. June 20, 1958 [June 28, 1957], No. 19918/58. Class 38 (5). The breaking power of three-phase A.C. switchgear may be increased by providing one phase with twice or nearly twice as many breaks as in each of the other phases, and ensuring that the breaks in this phase are simultaneously opened before those in the other phases. Fig. 4 shows one phase of a camoperated switch, this phase having two seriesconnected spring-urged contact bridges 24, actuated by engagement of a roller 26 with the control edge 25 of a cam 21. The control edges 33 of the cam associated with the single contact bridge in each of the other phases, are staggered with respect to the edges 25, to open these bridges after the bridges 24. The same effect is achieved in the contactor shown in Fig. 5, by displacing the fixed contacts 43<SP>1</SP>, 44<SP>1</SP> of the double-break phase from those 41<SP>1</SP>, 42<SP>1</SP> of the other two phases, the contacts 41 . . . 44 being resiliently mounted on a movable bridge 40. In a gas-blast switch application, Figs. 2, 3 (not shown), the actuating linkage or pressure fluid line may include a retarding device to ensure the prior opening of the phase with the double break. Specification 710,788 is referred to.
Patent GB-237114-A (GB)
Title: Improvements in pre-payment gas meters
IPC: G07F15/08
Filed: 1924-08-23
Abstract: 237,114. Meters, Ltd., Orme, T. A., and Stansfield, A. Aug. 23, 1924. Price-changing mechanism. - In prepayment gas meters the price-change disc b is locked in adjusted position by a tooth a<4> integral with or secured to a hinged frame a which masks the disc b. The frame is hinged at a' to lugs a<2> on the outer casing, the tooth a<4> working between the lugs a<2> and engaging with one of the notches of the disc b, when the frame is closed down. The frame a is locked in its closed position by a pivoted lever c access to which can be had only when the money-box d is removed.
Patent GB-377411-A (GB)
Title: Improvements in process of preparing coloured photographic and cinematographic pictures
IPC: G03C7/46
Filed: 1931-07-11
Abstract: 377,411. Colour photography and kinematography. DASSONVILLE, L. J., 35, Avenue Paul de Jaer, Brussels. July 11, 1931, No. 19999. Convention date, July 16, 1930. [Class 98 (ii).] In the production of coloured photographic positives by successive exposures, from the same side, under two complementary negatives, of a layer sensitized by a silver salt and thereafter resensitized by a salt of another metal ; after printing, developing, and fixing the silver image the layer is resensitized by an iron salt adapted to discolour the silver image and render it capable of being mordanted, and the second image is printed and developed in colour after which the first image is dyed through the second. Thus, an orange - red negative is printed upon an ordinary silver-sensitized film and, after developing and fixing the silver image, the film is resensitized with a solution of ferric chloride containing oxalic acid, dried and exposed under the blue-green negative. After developing with potassium ferricyanide, the film is washed and immersed in a mordant bath of potassium iodide and is then passed through a bath of orange-red aniline dye and washed with acidulated water. The second image may be printed from a positive and developed with potassium ferrocyanide. For a three-colour result, the third component is superimposed by mechanical printing. Instead of ferric chloride, the oxalate, tartrate, or citrate may be employed. The Specification as open to inspection under Sect. 91 (3) (a) states that salts of other metals, e.g. cobalt, cerium, or manganese may be used for resensitizing. This subject-matter does not appear in the Specification as accepted.
Patent GB-798548-A (GB)
Title: Area measuring method and means
IPC: G01B5/26
Filed: 1954-07-08
Abstract: 798,548. Area-measuring machines. TURNER MACHINERY, Ltd., [formerly TURNER TANNING MACHINERY CO., Ltd.], and HALL, C. June 17, 1955 [July 8, 1954], No. 20017/54. Class 106 (1). In the apparatus of Fig. 1, a hide 3 is passed between a driven bed roller 1 and a set of measuring rollers 4 supported on individual rockable arms 6. Rollers 4 engaged by the hide, according to its passing width, are raised from contact with the bed roller 1 and so break normal earth connections, through the rollers 4 and 1, of electrical resistances 8 to mark corresponding contacts of an annular series 20. The number of contacts 20 so marked at any instant is thus a measure of the width of hide between the rollers. The raised rollers 4 engage and drive a roller 5 which is geared to a contact arm 17 so as to scan the contacts 20 once per unit length of hide passing the rollers. The number of pulses so produced is proportional to the area of hide passed and is summated by an electronic counter of the dekatron type. For measurement in square feet, the rollers 4 are at one inch intervals, the arm 17 rotates once per inch length and the two initial dekatron tubes have twelve cathodes, the second tube providing fractional square foot indication. In the modified apparatus of Fig. 6, the upper rollers 26 are mounted on a common shaft 27 supported between a pair of rockable arms 28, all the rollers therefore being raised and driven by the passing hide to rotate the contact scanning arm as 17, Fig. 1. Separate small rollers 29 are interposed between the rollers 26 for gauging the passing width; these rollers 29 are carried by individual arms 30 and function like the rollers 4 of Fig. 1, to mark contacts of an annular series when separated from the bed roller 23. In a further modification, the contact scanning arm 17, Fig. 1, is replaced by an arm 85, Fig. 11, carrying a magnet 86 adapted to traverse a series of electromagnets 91. Separate rollers as 29, Fig. 6, are used for width measurement and the supporting arms of these rollers, when raised by the passing hide, close contacts 94 to complete circuits from the individual magnet windings 91 to an electronic counter 47 which summates the pulses generated. Reference has been directed by the Comptroller to Specification 777,339.
Patent GB-868595-A (GB)
Title: New cobaltiferous azo-dyestuffs, and their manufacture and use
IPC: C25D11/24
Filed: 1958-06-23
Abstract: The invention comprises complex cobalt compounds containing one atom of metal bound to two molecules of the same monoazo-dye or to one molecule each of two different monoazo-dyes, which dye, or dyes, contain SO3H groups and are of formula R-N=N-A-Y where R is a hydroxy benzene residue, containing a nitro group, bound to N2 #s to the OH group, A is a naphthylamine residue with Y, an at most secondary amino group, vicinal to N2.  The dyes are made in conventional fashion by metallizing dyes made from appropriate phenolic diazo, and naphthylamine coupling, components.  They may also be made by metallizing corresponding #s-alkoxy- or -acyloxy- #s1-amino-dyes. Typical of amines specified for use as diazo components are:-4-nitro- 2-aminophenol- 4- and -6-sulphonic acids, 4-nitro-, 4-chloro- and -methyl- 5-nitro-, 6-nitro- 4-acetylamino- and 4, 6-dinitro- 2-aminophenols.  Typical of specified coupling components are:-6-bromo-, -methyl- and -methoxy- 2-naphthylamines, 2-naphthylamine, 2-phenylaminonaphthalene- 21-sulphonic acid, 1-naphthylamine- 4- and 2-naphthylamine- 6-mono- and -3, 6-disulphonic acids.  Metallization is preferably effected in an alkaline medium with salts in which the metal is a cation.  The dyes are used especially for colouring anodically oxidized aluminium or alloys thereof from an aqueous bath.  Examples are provided of the preparation of the complexes and their use in dyeing aluminium in black or greenish-black shades.
Patent GB-1274756-A (GB)
Title: Battery charging apparatus
Inventor: SINGH WILLIAM KARTAR
IPC: H02J7/00
Filed: 1969-04-18
Abstract: 1,274,756. S.C.R. circuits. N.V. TOOLS Ltd. 16 Feb., 1970 [18 April, 1969], No. 20026/69. Heading H3T. [Also in Divisions G3 and H2] Battery charging apparatus comprises a variable inductance which controls the output of a transformer T1, the inductance being varied by magnetic means controlled by the direct current passed by a semi-conductor controlled rectifier S.C.R. and applied to a winding S1-S2 magnetically coupled by the magnetic means to the variable inductance. The variable inductance consists of the primary winding of a transformer T2 and the gate G of the S.C.R. is connected to a junction J2 the potential at which is more positive than that at a point J1 so that during the initial charging of the battery B the S.C.R. conducts to pass a direct current through the winding S1-S2 thereby lighting a lamp L1. This direct current reduces the permeability of the core of the transformer T2 thus reducing the inductance of its primary winding and enabling a high voltage to be applied to the primary of the transformer T1. As the terminal voltage of the battery increases, Zener diodes ZD1, ZD2 allow the increased negative voltage to trigger a transistor TR1 thus making the potential at J1 more positive than that at J2 so that the S.C.R. is switched off and a lamp L2 is illuminated. The inductance of the primary winding of the transformer therefore increases to its normal value resulting in a decrease in the voltage applied to the primary of the transformer T1.
Patent GB-677594-A (GB)
Title: Process for polymerizing alpha-methyl styrene
IPC: C08F12/12
Filed: 1950-08-14
Abstract: A solid polymer of alpha-methyl styrene having a molecular weight corresponding to an intrinsic viscosity in toluene of 0.4 or greater is prepared by polymerizing alpha-methyl styrene at a temperature between 0 DEG  and 30 DEG  C., preferably 10 DEG  and 25 DEG  C., while in admixture with finely-divided metallic sodium, and thereafter freeing the polymer from metallic sodium.  The polymerization may be discontinued when from 20 to 35 per cent by weight of the monomer is polymerized, and is preferably carried out in the presence of from 0.5 to 10 per cent by weight of sodium.  The polymer is preferably separated from metallic sodium by mixing the polymerized mass with a liquid aromatic hydrocarbon, such as benzene, toluene or ethyl benzene, to form a solution of the polymer, agitating the resulting solution with a lower monohydric alcohol, such as methanol, ethanol or isopropyl alcohol, in amount sufficient to precipitate the polymer and separating the liquid from the polymer.
Patent GB-148237-A (GB)
Title: Process for the treatment of caking coals for the extraction of the nitrogen on the mond gas method
IPC: C10J3/62
Filed: 1920-07-09
Abstract: 148,237. Akt.-Ges. f³r Brennstoffvergasung, (Assignees of Ehrhardt &, Sehner). Nov. 17, 1916. [Convention date]. Void [Published under Sect. 91 of the Act]. Producers.-Bituminous coal intended for use in Mond gas plant is subjected to a preliminary distillation at a. temperature of about 450‹ C. in order to remove tarry constituents.
Patent GB-706385-A (GB)
Title: Improvements in strops for razors and razor blades
IPC: B24D15/08
Filed: 1952-08-12
Abstract: A smooth-surfaced piece of a resilient synthetic resin material, such as polymethyl methacrylate resin, is used as a strop for razors or razor blades.  The strop may be of the hand-held kind and be formed wholly from the resinous material or, alternatively, it may constitute part of a mechanical device in which the blade is mounted on a hand-reciprocated carriage.
Patent GB-274292-A (GB)
Title: Improved globe for illumination fittings
IPC: F21V3/00
Filed: 1926-08-17
Abstract: 274,292. British Thomson-Houston Co., Ltd., Wheat, H. C., and Cocksedge, F. M. Aug. 17, 1926. Globes.- A globe comprises an annular portion a having upper and lower openings and a cap portion b for closing the lower opening, the two portions snapping together when moved axially relatively to one another. A resilient gasket, such as a rubber ring d of circular crosssection, is fitted in the space between co-operating grooves at the junction of the two portions, and lips e, f prevent the cap portion b being withdrawn outwardly from the annular portion a.
Patent GB-612080-A (GB)
Title: Improvements in or relating to electric motors having wound stators and unwound rotors
IPC: H02K25/00
Filed: 1946-07-08
Abstract: 612,080. Commutators for dynamo-electric machines. FAIREY AVIATION CO., Ltd., GARRARD, E. C., and EBEL, F. L. July 8, 1946, No. 20348. [Class 35] An interrupter, for a motor having windings only on its stator, is mounted on the rotor shaft and comprises a conducting cylindrical or annular member connected to axially or radially extending segments which are engaged in turn by oppositely disposed brushes and which are separated by insulated or insulating segments, air-gaps being provided between adjacent segments to prevent tracking. In the cylindrical form shown, the conducting cylinder 12 and axially extending segments 12a, 12b are mounted on an insulating, non-combustible bush 11 which has segments 11d, 11e projecting between the conducting segments and separated from them by air-gaps 13a, 13b. An interrupter having radial segments is also described with reference to Figs. 3 and 4 (not shown). Radio interference suppression circuits may be used.
Patent GB-687596-A (GB)
Title: Improvements in or relating to the manufacture of dialkyl aryl phosphates
Inventor: COATES HAROLD
IPC: C07F9/12
Filed: 1950-08-16
Abstract: Dialkyl aryl phosphates are prepared by reacting a dialkyl phosphite with a phenol (which may be substituted, e.g. by a nitro or chloro radical) in the presence of a carbonate, oxide or hydroxide of an alkali metal or alkaline earth metal and with carbon tetrachloride or tetrabromide, trichlorobromomethane, bromodichloromethane bromoform, hexachloroethane or pentachloroethane.  In examples diethyl p - nitrophenyl -, diethyl phenyl-, di-isopropyl p-nitrophenyl-, and dimethyl p-nitrophenyl-, phosphates are prepared, specified bases being barium oxide, calcium oxide, barium hydroxide octahydrate sodium hydroxide and sodium carbonate and specified halogenated hydrocarbons being carbon tetrachloride and carbon tetrabromide.
Patent GB-508627-A (GB)
Title: Improvements in automatically locking sliders for sliding-clasp fasteners
IPC: F16H63/20
Filed: 1938-07-11
Abstract: 508,627. Sliding- clasp fastenings. MORIN, L. H., and MARINSKY, D. July 11, 1938, Nos. 20527 and 20528. Convention dates, July 27, 1937, and May 20, 1938. [Class 44] The slider of a sliding-clasp fastener is locked by means of a member which rocks about an axis longitudinal of the slider and has a transversely extending projection normally forced into engagement with the fastener elements, but automatically withdrawn when the pull tab is operated to move the slider in either direction along the stringers. Figs. 2 and 4 show a locking member 17 of channel form having one limb 18 deeper than the other limb 19. A spring acts torsionally on the end of the member 17 so that normally an offset lug 26 is forced into engagement with the fastener elements, but when the pull tab is operated to move the slider in either direction along the stringers, the cross-bar 20 of the tab engages the edge of the limb 18 and causes the locking member 17 to rock to the position shown in Fig. 5 and so withdraws the lug 26. Fig. 12 shows a locking member consisting of a shaft 46, 46a having a laterally extending locking lug 51 and an arched cranked portion 48 with cam inclines 49 adapted to be engaged by the cross-bar 60 of a pull device. The shaft is accommodated in the correspondingly recessed upper face of the slider, Fig. 13, and retained by mounting thereover the retaining bridge 39 for the pull device as shown in Fig. 9. The locking device shown in Fig. 16 comprises a locking lug 75 projecting laterally at one end of a plate 69 which is rockably mounted by its legs 73, being located in recesses on the upper face of the slider. The plate is rocked by the crossbar of the pull device engaging the cam inclines 71, 72 or the lower lying bottom edge 70. The locking element and slider may be of non- metallic material.
Patent GB-404373-A (GB)
Title: Improvements relating to tables, desks and other articles of furniture
IPC: A47B17/03
Filed: 1932-07-21
Abstract: 404,373. Cabinets. MARGOLIN, A., 112, Old Street, London. July 21, 1932, No. 20638. [Class 52 (i).] A cabinet or table for sound reproducing apparatus, e.g. a radio-gramophone, wirelessreceiver, or thermionic-valve amplifying apparatus, comprises such as apparatus 20 secured to a flat rigid board 16, the edges 17 of which slide in grooves 14 cut in the walls 11 of the cabinet &c. The board may have a vertical front member, forming a closure for the recess between the walls 11, and a pair of stiffening-pattens may be fitted beneath it, together with a stop for preventing complete withdrawal.
Patent GB-219513-A (GB)
Title: Improvements in wire clips or pegs for securing clothes and the like upon a line
IPC: D06F55/00
Filed: 1923-08-14
Abstract: 219,513. Ghys, C. Aug. 14, 1923. Clothes-pegs.-Relates to wire clips or pegs of the kind formed from a single length of wire having loops at its ends, one of which 'is bent round and passed through the other to make spring contact with it. According to the invention, the extremities 15 of the loops, Fig. 1, are bent to form concavities 17 to receive the portion of the garment to be clamped around the line. Fig. 7 shows a form in which the bow spring providing- the clamping action is of double wire tied by a cross wire 20, the ends being covered and tied by a plate 19, and bends 21 being provided to facilitate operation.
Patent GB-275656-A (GB)
Title: Improvements in and relating to prepayment water meters
IPC: G07F15/04
Filed: 1927-08-06
Abstract: 275,656. Kleef, J. van. Aug. 7, 1926, [Convention date]. Addition to 268,290. Valves actuated by vessels receiving and discharging liquids. - The apparatus described in the parent Specification is modified by the addition of another valve between the automatically actuated valve and the branch conduit whereby after the coin has been inserted the customer can, by operating the additional valve, take the water as he requires it. As shown, the additional valve consists of a plug-cock 17 having an axial passage 18 connected to the branch pipe 20 through the valve 19.
Patent GB-276147-A (GB)
Title: An improved smoker's ash receptacle particularly suitable for use upon an automobile
IPC: B60N3/08
Filed: 1926-08-24
Abstract: 276,147. Breeden, C. L. Aug. 24, 1926. Ash-trays.-An ash-tray a is substantially kidney-shaped or oblong in plan and is supported in a motor-car or elsewhere by spring jaws b<1> engaging the ash-tray between a rim a<2> and protuberances a'. The spring jaws may be combined with a pipe holder comprising a metal strip c with perforated ears c<1>, and with a matchbox holder consisting of a plate d with inturned lugs d' for engagement with the slotted sides of a metal match-box as described in Specification 235,370. The, ash-tray may be partly covered by a plate a<4>.