baber/WOPTO huggingface dataset:
Patent GB-1034748-A (GB)
Title: Information storage apparatus
IPC: G11C11/44
Filed: 1964-06-19
Abstract: 1,034,748. Superconductive circuits; tunnel diode pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 19, 1964 [July 1, 1963], No. 25383/64. Headings H3B and H3T. Read-out and intersubstrate coupling of cryogenic circuits is effected via a tunnel diode. Binary information stored in storage 1 is coupled to a subsequent storage loop 1<SP>1</SP> by a tunnel diode 45 connected in parallel with sense gate conductor 25 associated with part 23 of conductor 25 of the storage loop 1. The tunnel diode is also connected by transmission line 55b to control conductor 19<SP>1</SP> of read-in cryotron 15<SP>1</SP>. During the quiescent "O" state of loop when all current flows from source 7 through superconductor 3, superconductor 5 being made resistive by control conductor 19, superconductive path 49a is not rendered resistive and tunnel diode 45 is shunted thereby. A drive pulse along transmission line 51 is not sufficient to switch the tunnel diode from its low voltage state to its high voltage state, with the result that a current of magnitude insufficient to render read-in cryotron 13<SP>1</SP> resistive is applied along control conductor 19<SP>1</SP> and current continues to flow along conductor 3<SP>1</SP>. If a binary " 1 " is stored in loop 1, i.e. all the current flows through conductor 5 then the gate conductor of read out cryotron 21 is rendered resistive and bias current through path 37 now flows through inductor 47 and tunnel diode 45. When a drive pulse from driver 53 is now applied across the tunnel diode the total current applied thereto is sufficient to switch the diode to its high voltage state, Fig. 3 (not shown), and this switching causes a current to flow in control conductor 19<SP>1</SP> of sufficient magnitude to switch the gate conductor of cryotron 15<SP>1</SP> to its resistive condition and divert the current from source 7 into path 5<SP>1</SP>. At the end of the drive pulse the diode switches back to its low voltage state at a rate determined by inductance 47 and the dynamic resistance of the tunnel diode, since the bias currents are arranged so that the diode action is monostable. In the arrangement of Fig. 1 (not shown), a sense amplifier is connected via a transmission line across the diode and the second cryotron loop 1<SP>1</SP> omitted. Majority-type logic may be performed using the arrangement of Fig. 5 in which tunnel diode 45<SP>11</SP> is connected an odd number of sense gate conductors 25<SP>11</SP> so that if the majority of the gate conductors are in their resistive state the bias current together with the drive current is sufficient to switch the tunnel diode to its high voltage state and pass a signal to a sense amplifier OR and AND operations can be performed by providing that one of the sense gate conductors is normally maintained in a resistive or in a superconductive state respectively.
Patent GB-702836-A (GB)
Title: Improvements in or relating to circuit arrangements for operating electric dischargelamps
IPC: H05B41/232
Filed: 1950-10-18
Abstract: 702,836. Supply systems for space discharge apparatus; series systems. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Oct. 18, 1951 [Oct. 18, 1950], No. 25391/50. Class 38 (4) An electric circuit management for operating a plurality of discharge lamps 28 ... 35 at variable levels of brightness include a plurality of transformers 12 ... 19 each having at least one lamp connected to its secondary winding 20' ... 27<SP>1</SP> and whose primary windings 4 ... 11 are serially connected with each other and with a lamp dimming variable impedance 3 to a supply, one or more lamp ballast impedances, and, shunting each transformer primary or secondary winding, a capacitor 44 ... 51 rated to pass in operation a current equal to the transformer magnetizing current when on open-circuit. The ballast may be provided at least partly by the leakage reactance of the transformers, by inductances 36 ... 43 serially connected with each lamp, or by a separate inductance common to all the lamps; in the latter case it may embody the variable impedance 3 and comprise a transductor. The transformers may be auto- -or double-wound. For supplying heating current to the lamp electrodes 70 ... 85 each transformer may have further secondary windings or, preferably, as shown, a separate transformer is provided having secondary windings 54 ... 69 for all the lamp electrodes, and a primary winding 52 which may be connected to the supply through a variable impedance (not shown) linked to the dimming impedance 3 to provide approximately constant electrode heating, such as is disclosed in Specification 657,073.
Patent GB-676962-A (GB)
Title: A process for the smelting of ores, more especially of iron ores
IPC: C21B5/00
Filed: 1948-09-29
Abstract: A process for the smelting of ores, more especially iron ores, in a blast furnace wherein the charging height from the plane of the blast tuyeres is substantially 1.5-3 metres, comprises smelting with the aid of blast briquettes of the fuel and ore, or part of the ore, drawing off the gases and vapours from the furnace, treating them to remove dust, treating them in a first condensing device to precipitate thick tar and then treating them in a second condensing device to precipitate thin fluid tar, the thick tar being used as a binding medium for the briquettes. Where only part of the ore is briquetted, the remainder is charged into the furnace in lump form having a size corresponding to that of the briquettes.  The fuel may be a hard coal unsuitable for the production of smelting coke.  Ores containing marly gangue may be used or marl and/or slaked lime may be used as an additional binding agent: water may be added to give the briquettes a water-content of from 5 to 8 per cent.  The blast is at a lower pressure than normal and unheated air, oxygen-enriched air, or oxygen alone may be used.  A water-jacketed furnace may be employed.
Patent GB-1337764-A (GB)
Title: Process for the preparation of a ziegler-natta type catalyst component
IPC: B01J31/06
Filed: 1971-04-19
Abstract: 1337764 Titanium trichloride SOLVAY ET CIE 19 April 1971 [26 March 1970 29 June 1970 30 July 1970 3 Aug 1970] 25401/71 Heading C1A [Also in Division C3] Titanium trichloride is transformed from the brown (beta) to violet (gamma or delta) form by contacting with TiCl 4  at or below 100 C. The trichloride may be the cocrystallized form with AlCl 3 , obtained by organoaluminium reduction of TiCl 4 . The TiCl 4  is used in the liquid, undiluted form. The TiCl 3  may be supported. The product is used in preparing Zeigher-Natta polymerization catalysts (see Division C3).
Patent GB-587379-A (GB)
Title: Improvements relating to cranes, excavators and like machines
IPC: B66C23/84
Filed: 1944-12-19
Abstract: 587,379. Vehicle stands. GOODLAD, F. Dec. 19, 1944, No. 25427. [Class 79 (iii)] [Also in Groups XXI and XXX] A crane, excavator or like machine mounted on road wheels or tracks is provided with a slewing ring which may be raised or lowered relatively to the wheels or tracks and is so arranged that when lowered into engagement with the ground, the wheels or tracks are lifted clear of the ground so that the machine may be swung around on the ring. Fig. 2 shows an embodiment in which the ring 11 is connected to the machine by three equally-spaced sets of links 4, 5, the links 4 being pivotally connected at 4a to the machine frame and the links 5 connected to lugs 6 on the ring. The ring, is raised to allow the machine to be supported by its wheels 7 as shown in Fig. 1 by. rotating a spur wheel 2 connected to the links 4 by rods 3. The ring is provided with three equi-spaced rollers 9 and is rotated by a cable 14.
Patent GB-1505027-A (GB)
Title: Grinding machine
IPC: B24B5/12
Filed: 1976-06-18
Abstract: 1505027 Grinding FRITZ STUDER AG 18 June 1976 [18 June 1975] 25460/76 Heading B3D A machine for grinding external and internal surfaces of revolution comprises a chuck 7 rotatable about an axis, an external grinding head 3 and an internal grinding head 4 mounted alongside each other on the same transverse slide 2, the heads being displaceable along the transverse slide in the feed direction of the transverse slide. For external grinding, the external grinding head 3 is advanced to engage its grinding wheel 5 with the workpiece 6, the internal grinding head 4 being in a retracted position with its grinding spindle 9, carrying an internal grinding wheel 11, retracted within a housing 10. For internal grinding, the external head is retracted, the internal grinding head 4 is advanced, and the internal spindle 9 secured in an advanced position in its housing. The heads may be secured with their grinding wheels a fixed distance apart for simultaneous internal and external grinding.
Patent GB-763301-A (GB)
Title: Process for the reduction of í¸-3-keto-steroids to 5-ª -dihydro-steroids
IPC: C07J75/00
Filed: 1954-09-02
Abstract: A process for the reduction of the 4 (5) double bond of a D 4-3-keto-steroid having a methylene group in the nucleus at the 11-position comprises catalytically hydrogenating said steroid in the presence of a palladium-carbon catalyst containing 5 per cent palladium and in the presence of triethylamine to form mixtures of the 5a - and 5b -isomers in which the 5b -isomer predominates.  A suitable method of operation is to dissolve the steroid reactant in an inert organic solvent, e.g. ethanol, ether, ethyl acetate, methylcyclohexane or p-dioxane, the triethylamine and catalyst are then added, and hydrogenation is carried out at room temperature and pressure.  Preferably from about 0.3 to 0.7 parts by weight of triethylamine and from about 1 to 3 parts of catalyst are used to 10 parts by weight of steroid reactant.  The process may be applied to progesterone, desoxcorticosterone acetate, testosterone, D 4-androstene-3,17-dione and D 4-cholestene-3-one.  In the example pregnane - and allopregnane - 3,20 - dione are prepared from D 4-pregnene-3,20-dione, and 21-acetoxy - pregnane - and 21 - acetoxy - allopregnane-3,20-dione are prepared from desoxycorticosterone acetate.
Patent GB-641668-A (GB)
Title: Sound reproduction devices
IPC: H04R1/34
Filed: 1947-09-19
Abstract: 641,668. Sound-directing appliances. STANDARD TELEPHONES & CABLES, Ltd. Sept. 19, 1947, No. 25537. Convention date, Sept. 20, 1946. [Class 13] [Also in Group XXXIX] A cabinet containing a loud-speaker 21, Fig. 4, has louvres 1, of which a longitudinal view is given in Fig. 3, designed to concentrate the sound energy in a given direction. Acoustic screens 12, 13 may be provided in order to separate the loud-speaker from the amplifier &c. and to close the short path 15 for sound from the rear surface of the loud-speaker and lengthen the equivalent path between the two faces of the diaphragm. In a modification, Fig. 5, two walls 19, 20 form a phase changer to bring the waves from the rear of the loud-speaker into phase with those from the front. An alternative form of phase changer comprises two pipes, Fig. 6 (not shown).
Patent GB-1484744-A (GB)
Title: Continuously operable centrifugal separators
IPC: C13B30/06
Filed: 1975-06-16
Abstract: 1484744 Centrifugal separator FIVESCAIL BABCOCK 16 June 1975 [17 June 1974] 25638/75 Heading BID  A centrifugal separator has a rotating straining sieve 12 in a basket 10 having a vertical axis; a mixing pot 18 is mounted coaxially inside the basket and is affixed to the hub thereof 22, and a frusto conical distributor pot 20 is disposed concentrically and spaced from the mixing pot 18 and carried by radial arms 30 fast with said hub 22, the internal surfaces of distributor pot being formed with longitudinal recesses 32 located at the level of the arms 30 and extending on both sides of the arms over the full height thereof. Viscous fluid entering mixing pot 18 is distributed over the rim of pot 18 onto distributor pot wall 20 and in travelling downwardly passes arms 30 at which point recesses 32 retain the liquid obstructed by the arms and retain it until the arms have been passed whereupon grooves taper out and release retained liquid evenly in the proximity of the arms.
Patent GB-841851-A (GB)
Title: Improvements in or relating to electric digital computing devices
IPC: G06F1/04
Filed: 1956-08-22
Abstract: 841,851. Parametrically-excited resonators. KOKUSAI DENSHIN DENWA KABUSHIKI-KAISHA. Aug. 22, 1956 [Aug. 31, 1955], No. 25671/56. Class 40 (9). [Also in Group XIX] To ensure that information is transferred only in one direction along a cascade of parametrons with two-phase excitation, the parametrons are linked by couplings or gates which are made conductive only during those overlapping portions of the excitation periods that are concerned in a transfer in the desired direction. In effect, there are two sets of parametrons, the odd and the even-numbered parametrons. Information is transferred in a forward direction from the odds to the evens and from the evens to the odds during alternate excitation periods. Parametrons P1 to P4 in a shaft register, Fig. 7A, are excited alternately during overlapping periods eI, eII, Fig. 7B, and the couplings N12, N34 and N23 are made conductive during periods nI and nII. When P2 is excited at the beginning of a period eII information is transferred from P1 through N12 during overlapping period t1 but no information passes from P2 to P3 as N23 is closed. At the end of the period eII, coupling N23 is open, N12 is closed and the information passes to P3. The coupling may comprise a rectifier gate, Fig. 6, controlled by a voltage n or may comprise a balanced transformer, Fig. 5. The balanced transformer comprises four cores F1 to F4, the primaries l1 to l4 all being wound in the same direction. The secondaries L1, L2, and L3, L4 are oppositely wound so that there is no output therein unless the transformer is unbalanced by a control current through saturating windings S1, S2 on cores F1, F2. Specifications 778,883 and 840,548 are referred to.
Patent GB-1310841-A (GB)
Title: Water-soluble herbicidal compositions
IPC: A01N39/04
Filed: 1970-05-28
Abstract: 1310841 Phenoxyacetic acid herbicides SPOLANA NARODNI PODNIK 28 May 1970 [3 June 1969] 25685/70 Heading ASE A water-soluble herbicidal composition contains as active principle in the solid state a water-soluble amine salt of a phenoxyacetic acid having the general formula: in which R<SP>1</SP> is halogen, R<SP>2</SP> is alkyl, n is an integer from 0 to 5, m is an integer from 0 to 2, m+n is an integer from 1 to 5, R<SP>3</SP> is an alkyl or hydroxyalkyl group having 1-6 carbons and each of R<SP>4</SP> and R<SP>5</SP>, the same or different, is H, an alkyl or a hydroxyalkyl group having 1-6 carbons, the composition containing also one or more of ammonium sulphate, a non-aqueous water-soluble liquid, an anti-agglutinant, a water softener, a dyestuff and a perfume. The composition may contain different amine salts in admixture.
Patent GB-654012-A (GB)
Title: Improvements in or relating to filtering devices
IPC: B01D24/04
Filed: 1948-10-04
Abstract: 654,012. Filters. purifying liquids. SIMPSON, A. J.. and ZWICKY, J. F. Oct. 4, 1948, No. 25748. [Class 46] A filtering device comprises a reservoir 1 for filtered liquid, a removable container 9 for granular filtering medium extending into the reservoir and disposed in a cage 7 having communication with the reservoir, a detachable cover 3 having an inlet for liquid to be filtered, a pre-filter, such as a perforated plate 14 disposed between. the inlet and the container 9, means such. as a set of apertures 22 in a depending internal wall 15 of the cover for distributing liquid over substantially the whole area of the pre-filter and a deformable sealing element such as a rubber ring 13 disposed between the container 9 and the pre-filter, the ring 13 also creating a seal between the cage 7 and a deformable extension 11 of the container 9. As shown, the container has a perforated disc 10 at its upper end this engaging an internal rib 12 on the cage 7; the latter has perforations 8 at and near its bottom. The cage 7 and the reservoir have flanges whereby they are bolted to the cover 3. Liquid is withdrawn from the reservoir 1 by pipe 24 and tap 23. The container 9 may be of a porous fabric or a porous plastic composition. There may be one or more additional pre-filters. The granular filtering medium may be of activated carbon or diatomaceous earth; it may be impregnated with chlorine or other sterilizing agent. The material may be arranged in the container in layers separated by one or more sheets of filter paper of lesser diameter than the container. Alternative unions 19, 20 are provided in the cover 3 for connection to mains or to a tank respectively.
Patent GB-257832-A (GB)
Abstract: 257,832. Moeskes & Staude, Ges. Nov. 25, 1925, [Convention date]. Draw tapes and cords.- One of the fastening members of a band of elastic or inelastic material for threading through a hem in articles of clothing, such as knickers, comprise an elongated portion of uniform width approximately equal to that of the band to serve as a threading needle and carrying at one end a closure member proper, also approximately of the same width as the band, so that the fastened members, after being engaged, may be hidden from view in the hem. Fig. 2 shows one form of band a in; which one closure member comprises an oval head c adapted to be passed into an elongated slot d in the other closure member and turned round to seat on recesses e at the sides of the slot to form a flush fastening. Fig. 3 shows one closure member of similar form of band, the band being threaded through slots g to adjust its length.
Patent GB-1381227-A (GB)
Title: Gas discharge display panel assembly
IPC: H01J17/49
Filed: 1973-05-30
Abstract: 1381227 Gas discharge display panels; printed circuits INTERNATIONAL BUSINESS MACHINES CORP 30 May 1973 [30 June 1972] 25817/73 Headings H1D and H1R A gas discharge display panel 12 consisting of a pair of transparent dielectric plates 14 and 15 sealed together so that the ends of electrodes 45 and 46 on opposing faces of the plates are exposed is connected to electronic circuits 31 to 40 carried on a rigid board 17 by inserting the panel 12 in an aperture in a flexible dielectric sheet 16 so that plate 15 is behind flaps 61 and 62 and electrodes 46 are engaged by conductors 63 on the rear surfaces of the flaps while electrodes 45 engage conductors 64 on the front surface of sheet 16. Conductors 63 and 64 are connected by contact or soldering to conductors on board 17 connected to the circuits 31 to 40 which may be plug-in units as illustrated by units 34 and 37. In an alternative arrangement, Fig. 3, the flexible sheet material has two flaps 116 and 119 carrying conductors which engage the exposed ends of conductors on the plates 114 and 115 of the panel 112 and connect them to circuit components 131 to 142 carried by two boards 117 and 118. The arrangement enables the boards 117 and 118 to be placed selectively in different planes with respect to the panel 112 and the assembly can be compressed for packaging or extended for cooling purposes where mounting space permits. Cooling is assisted by an aperture in the flexible sheet between boards 117 and 118. In a further alternative arrangement (Fig. 4, not shown) the panel, flexible sheet and circuit boards are disposed in a common plane.
Patent GB-258310-A (GB)
IPC: B41B7/04
Abstract: 258,310. Pierpont, F. H., and Lanston Monotype Corporation, Ltd. May 15, 1925. Strip-perforating machines; justifying type.- In arrangements of the kind described in Specification 4380/12 for composing tabular matter, in which adjustable zero-stops carried by a rotatable shaft are adapted to be successively positioned in the path of the line-measuring mechanism, the rotations of the shaft are effected by the linemeasuring mechanism before the operation of the devices for returning that mechanism to zero. The stops are carried by a shaft A, Fig. 4, which is rotated step by step by ratchet-mechanism operated by a motor E. Air is admitted to the motor when a projection B<1>, Fig. 2, on the line-measuring rack B engages the stem of a valve D'. The projection B<1> also operates a bell-striker K to indicate the approach of the end of the line. A toothed wheel A<1> on the shaft A is engaged by a driving-pawl F pivotally connected to the piston of the motor E. A holding-pawl G, controlled by the pawl F, prevents the wheel from being rotated too far. The shaft is rotated against the force of a spring or a weight, and a detent-pawl J prevents reverse rotation of the shaft. After the last stop required has been used, an adjustable stop L raises the holding-pawl J, and permits the shaft to return to zero. The driving and holding pawls may be disengaged at any time by means of a hand-lever N. Specification 17199/08 also is referred to.
Patent GB-534738-A (GB)
Title: Manufacture of adenosine
IPC: C07H1/00
Filed: 1939-09-14
Abstract: 534,738. Adenosine. SOC. OF CHEMICAL INDUSTRY IN BASLE. Sept. 14, 1939, Nos. 25834 and 25835. Convention dates, Sept. 16, 1938 and Sept. 28, 1938. [Class 2 (iii)] Adenosine is prepared by hydrolysing yeast adenylic acid in the form of a water-soluble salt at a pH range of 4.5 to 6.7. The process is preferably effected at a temperature of 100- 140‹C. and a pH range of 5.0 to 5.5. The product may be separated as the picrate which is then decomposed with a base such as dielthylamine. Examples are given of the use as hydrolysing agents of caustic soda, lime water and barium hydroxide, which are added to the yeast adenylic acid in amount sufficient to convert the acid into the appropriate salt and give the desired pH. The use of ammonia is also referred to.
Patent GB-1271843-A (GB)
Title: Electric motor with control means
Inventor: KOBAYASHI KAZUTSUGU
IPC: H02K29/12
Filed: 1969-05-21
Abstract: 1,271,843. Electric motors. MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD. 21 May, 1969 [21 May, 1968; 22 May, 1968], No. 25895/69. Heading H2A. [Also in Division G3] An electronically commutated electric motor similar to that described in Specification 1,262,504 includes a variable common impedance in the emitter leads of the commutating transistors to enable the torque of the motor to be adjusted. The impedance may be a conventional variable resistance or a light sensitive resistance such as a cadmium sulphide cell. The impedance may alternatively comprise a fixed resistance and a transistor which is controlled to keep the rotor speed at a predetermined value (see Division G3).
Patent GB-719056-A (GB)
Title: Improvements relating to the removal of hydrogen sulphide from industrial gases
Inventor: REEVE LEWIS
IPC: C10K1/30
Filed: 1950-10-24
Abstract: 719,056. Gas purification. UNITED STEEL COS., Ltd. Jan 24, 1952 [Oct. 24, 1950], No. 25900/50. Class 55 (2) In a process for removing hydrogen sulphide from industrial gases the gases are passed through a fluidized bed of particulate iron or manganese oxide maintained at a temperature between 150 and 700‹ C., no air or oxygen being added to the gas to be purified. A temperature of 250-400‹ C. is preferred. As shown in the drawing two fluidized zones A and B are provided one A for removing hydrogen sulphide and the other B for the regeneration of sulphided oxide, the oxide being continuously transferred from one zone to the other by line 47 and 50. Air is admitted to zone B by line 54 and the oxide in the zone is regenerated by combustion of the sulphur, the heat thus liberated providing part of the heat for the process. To supply additional heat a fuel gas is admitted to zone B by line 53, a temperature of 400-600‹ C. being mamtained in the zone. Gas to be purified enters zone A by line 51 and leaves at 52.
Patent GB-1307749-A (GB)
Title: Adjustable seats in particular for a vehicle
IPC: B60N2/18
Filed: 1970-05-29
Abstract: 1307749 Vehicle seat AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 29 May 1970 [16 July 1969] 25927/70 Heading A4J A thigh support 14 is rotatable about axis 15 and having no constant radius, provides a seat of variable length. It is ganged by link 24 to the pivoted link 18 so that when the seat is moved rearwardly into the position shown (for a tall driver) the effective seat depth is increased.