baber/WOPTO huggingface dataset:
Patent GB-1316767-A (GB)
Title: Removal of cobalt from nickel salt solutions
Inventor: GANDON LOUIS
IPC: C01G53/00
Filed: 1970-07-22
Abstract: 1316767 Basic Ni carbonates; removing Co from Ni solutions LE NICKEL 22 July 1970 [12 Aug 1969] 35412/70 Heading ClA A mixture of basic Ni<SP>II</SP> and Ni<SP>III</SP> carbonates is produced by reacting a Ni<SP>II</SP> salt solution with an aqueous solution containing an alkali metal carbonate and an oxidizing alkali metal salt. The products have the formulµ respectively. The Ni salt may be sulphate, chloride or nitrate, and the oxidizing solution may contain Na 2 CO 3  and a persulphate, hypochlorite or hypobromite, preferably NaOCl. The reaction temperature may be 10-25‹ C. The product is used to remove Co<SP>II</SP> as Co<SP>II</SP> carbonate from Ni<SP>II</SP> solutions, e.g. sulphate, chloride, or nitrate, at 60-95‹ C. Excess Ni carbonate is used and the resulting ppt. used to treat further impure solution together with some fresh Ni carbonate; the resulting partially decobalted solution is then treated with excess fresh Ni carbonate and the cycle repeated.
Patent GB-1015793-A (GB)
Title: Preparation of substituted thiaxanthenes
IPC: C07F3/02
Filed: 1962-09-18
Abstract: The invention comprises a process for the preparation of substituted thiazanthenes of the general formula <FORM:1015793/C2/1> wherein each of X and X1 represent a hydrogen or halogen atom, particularly a fluorine, bromine or chlorine atom, or a C1- 4 alkyl, a C1- 4\t perfluoroalkyl, or a C1- 4-alkoxy radical, and R represents a C1- 4 alkyl or a C2-C4 alkenyl radical, by dehydrating substituted thiazanthenes of the general formula <FORM:1015793/C2/2> wherein R, X and X1 have the above significance, with formic acid.  Therapeutic compositions, which may be administered as tablets or solutions, having anti-histaminic and/or antiserotonin properties contain substituted thioxanthenes of the first general formula above or a salt thereof.  Substituted thiaxanthenes of the second general formula above are prepared by reacting the appropriate 1-lower alkyl (or alkenyl) - piperidino Grignard reagents with the appropriately substituted thioxanthones.  Reference has been directed by the Comptroller to Specification 829,763.
Patent GB-788825-A (GB)
Title: Improvements in or relating to overhead conveyors
IPC: B66C13/12
Filed: 1955-12-12
Abstract: 788,825. Rope grips. TRANSMISSION ACCESSORIES, Ltd., and BEECH, A. S. Dec. 12, 1955, No. 35635/55. Class 78 (2). An overhead conveyer comprises a plurality of runners 50, each having rollers 19 to run along an overhead I-beam support, a plurality of separate cable lengths 16 each having a head 15 at each end, and clamping means 11, 12 to clamp the corresponding cable lengths to it by their heads, the cable lengths being in line with one another to form a continuous moving cable. As shown, the load is carried by a hanger skip attached at 22 to the runner 50, the weight being taken by the I-beam support (not shown) and the drive being derived from the driving cable composed of the separate cable lengths 16.
Patent GB-467648-A (GB)
Title: Improvements in pleating and suspending tapes for curtains and the like
IPC: A47H13/16
Filed: 1935-12-24
Abstract: 467,648. Curtain - pleating tape. QUAYLE, T. Dec. 24, 1935, No. 35645. [Class 52 (v)] [Also in Group IX] The tape is provided with a series of spaced vertical pockets a open at the bottom and closed at the top, adjacent pairs of pockets being adapted to receive lateral wing members c<1> of the suspension hook, the straight central member c of which lies' behind the drawcords B in the spaces a<1> between the pockets. The hook is inserted into the tape by passing the member c<2> behind the drawcords and turning the hook over so that the wing members c<1> lie adjacent the pockets, then pulling the hook downwards until the wing members can be inserted into the pockets. An indicating thread a<2> may be woven into the tape to indicate the top or bottom. The pockets may be provided on both sides of the tape, a pocket lying behind each space a<1>.
Patent GB-1076781-A (GB)
Title: Improvements in sensitive silver halide emulsions and their treatment
Inventor: SHIPTON KENNETH CHARLES
IPC: G03C1/30
Filed: 1962-09-21
Abstract: 1,076,781. Photographic silver halide emulsions. KODAK Ltd. Dec.23, 1963 [Sept. 21, 1962], No.35959/62. Addition to 928, 591. Heading G2C. . A sensitive gelatine silver halide emulsion is hardened by adding a water-dispersible polyaldehyde, which is the oxidation product of a plant gum having a polysaccharide structure, by the method of Specification 928, 591 and also incorporating in the emulsion a bis-pyridinium compound wherein the nitrogen atoms of the pyridinium nuclei are joined by a chain of at least 6 carbon or carbon and oxygen atoms. Pyridinium compounds specified are ethylene-bis-(oxymethylpyridinium) diperchlorate and tetradecamethylenebis-pyridinium diperchlorate.
Patent GB-1188189-A (GB)
Title: Pulse Code Modulated Bridge Inverter
IPC: B60Q9/00
Filed: 1967-08-07
Abstract: 1,188,189. Inverting. VARO Inc. 7 Aug., 1967 [9 Aug., 1966], No. 36169/67. Heading H2F. In a pulse width modulated inverter, a highfrequency oscillator 3 triggers a bi-stable circuit 4 to control the switching of an inverter 2 fed from a D.C. source 1. The square wave output from the inverter is pulse width modulated at a lower frequency by switching circuits 7 which periodically connects the output from the inverter 2 to a filter 6, depending on the state of bi-stable circuits 12A, 12B. Each bi-stable circuit 12A, 12B is controlled by a control circuit 10A, 10B comprising a tunnel diode, e.g. 24, which is switched by a high-frequency ramp signal from unit 11 superimposed on a lowfrequency sine wave signal from oscillator 8. In operation the output from oscillator 8 is compared with the output from the filter 6 in comparator 9, to provide a control signal which determines the point on the ramp at which the tunnel diodes are triggered from one state to the other. During a first time period T1, Fig. 11, transistor 26, 28 are conductive to close switches 16, 18 and thus short circuit terminals 33, 34 so that no signal is applied to filter 16. During period T1, bi-stable circuit 12A changes its state and terminals 33, 35 and 34, 36 are connected to feed the output, Fig. 12, of inverter 2 to filter 16. Thus the waveform of Fig. 12 is periodically connected to, and disconnected from the input of filter 16 to provide an input to filter 16 as shown in Fig. 13. After passing through the filter, the resulting output signal is a sine-wave phase locked to that from the reference oscillator 8. The circuit may be modified for polyphase operation, Fig. 15 (not shown), by providing a phase splitter (37) at the output of the oscillator 8 and repeating the units 9, 10, 12, 13, 7, 6 for each phase.
Patent GB-412503-A (GB)
Title: Improvements in or relating to convertible beds and tables
IPC: A47C17/62
Filed: 1933-12-22
Abstract: 412,503. Convertible beds and tables. FREUDENBERG, (nee HENNINGS), F., 5, Klugkiststrasse, Bremen, Germany. Dec. 22, 1933, No. 36182. [Classes 52 (ii) and 52 (iii).] The sides of a bed are used to form a table top. Fig. 2 shows a bed comprising two-part side members i-i<3> which are joined to the end members b, b <1> and to each other in pairs by hook-and slot joints n, l. On their inner sides are ledges supporting a mattress frame. To convert the bed into a table, the parts i-i<3> are fitted in slotted edge pieces r, Fig. 1, and are supported on the end members b, b<1>, which are connected and stayed by members c, c<1>, which support a board and a wire mattress and overlay indicated by chain lines. The mattresssupporting ledges, which project inwards from the lower edges of the parts i, i engage with the recesses q, Fig. 2. The mattress-supporting ledges on the parts i-i<3> may be connected by latches or by hinges.
Patent GB-1445343-A (GB)
Title: Spark ignition systems for internal combustion engines distributor contact points setting gauge
IPC: F02P3/055
Filed: 1972-08-03
Abstract: 1445343 Ignition systems LUCAS ELECTRICAL Ltd 31 July 1973 [3 Aug 1972] 36224/72 Heading F1B A spark ignition system for an internal combustion engine comprises in combination a switching transistor 39 in series with the primary winding 42 of an ignition coil 43 a control transistor 34 providing base current to the switching transistor and means controlled by the engine for turning the control transistor off when a spark is required, the system further comprising a pair of voltage sensitive devices 37, 41 associated respectively with the control transistor and the switching transistor for preventing damage to the control transistor and the switching transistor by voltages developed in the primary winding and also protecting the control transistor and the switching transistor from damage if the system is incorrectly connected to a source of supply. A capacitor 35 is associated with the control transistor for restricting the switching rate thereof to minimise radio interference. The system is controlled by an oscillator, comprising windings 17, 18, 21, which is controlled in turn by a part (not shown) rotating with the engine, which part carries a ferrite rod, Specification 1445342 is referred to.
Patent GB-362451-A (GB)
Abstract: 362,451. Differential mechanism. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Robertson, W. H. ; 1302, Patterson Road, Dayton, Ohio, U.S.A.) Sept. 4, 1930, No. 26389. Convention date, Sept. 4, 1929. [Class 106 (i).] In differential mechanism for key-controlled machines such as cash registers, accounting, calculating, and similar machines, of the kind in which depressed keys or zero stop-pawls are adapted to arrest actuators differentially, the actuators are permitted in certain types of operations to advance under control of other elements irrespective of whether keys are depressed or zero stop-pawls are in position normally effective to arrest the actuators. The invention is described as applied to a cash register of the kind described in Specification 285,500, [Class 106 (i), Calculating &c.], and serves to obviate the necessity for the provision of interlocks to prevent interference of the keys and zero stop-pawl with repeat and total-taking operations. The abutment member 54, Fig. 1, of each actuator 35 is carried by a slide 55 mounted on and movable radially of the actuator. The abutment is normally in position to engage the zero stop-pawl 37 or the stem of a depressed key 33, but is moved inwardly into inoperative position upon the depression of a repeat key 62, Fig. 4, or the movement of the total lever 122, Fig. 3, from " add " position. For this purpose a lug 110 on the slide 55 engages, in the zero position of the actuator, within the slotted end of an arm 107 fast on a rod 108, pin-and-slot connected to a shaft 100. Depression of the repeat key 62, through stud 103 and cam-face 112, rocks the shaft 100 and moves the abutment 54 to ineffective position. Similarly, the shaft 100 may be rocked by movement of the total lever 122 from "add" position, through the engagement of a stud 124 on the total lever with the inclined end of an arm 125 fast on the shaft. A latch 113 retains the slide 55 in its set position. Interlocks are provided between the repeat key and the total lever.
Patent GB-1476369-A (GB)
Title: Rotary cutting tools for woodworking machines
IPC: B27G13/06
Filed: 1974-08-16
Abstract: 1476369 Rotary woodworking tools MICHAEL WEINIG KG 16 Aug 1974 [17 Aug 1973] 36254/74 Heading B5L A rotary cutting tool 2 (cutting blades not being shown) for a woodworking machine is adapted to be mounted on the drive shaft 1 of the machine tool by means of a central bore the wall of which has at least one annular pressure chamber 3 and an elastically deformable sleeve 4 adapted to be deflected into gripping engagement with the shaft surface when pressure is applied to a pressure medium, e.g. grease in the chamber 3. Pressure may be applied by a high pressure grease gun through lubricating nipple 10 and released by a screw-pressed ball closure member 26. The deformable sleeve may be in two separate portions and flanged for axial location of the cutter body as shown in Fig. 2. In a further modification (Fig. 3, not shown) two lubricating nipples are provided, one for each of two pressure chambers and equal pressures in the two chambers are ensured by the use of a single high-pressure gun with two connection hoses linked to the nipples.
Patent GB-1426782-A (GB)
Title: Test hseet for use with a scoring apparatus
IPC: G09B7/00
Filed: 1973-04-30
Abstract: 1426782 Test sheets SCAN-TRON CORP 30 April 1973 [4 May 1972] 36288/75 Divided out of 1426781 Heading G4M A rectangular test sheet comprises a control  mark 35 (Fig. 4b), answer control marks 37 and a page termination mark 39, the three types of marks being aligned in a single control column and having differing widths. At least one answer column is arranged parallel to the control column having answer receiving spaces aligned with the answer control marks. As described the sheet, which may be of paper, may have either a horizontal format with a plurality of answer receiving spaces aligned with each answer control mark (there being one mark for each question) or a vertical format (Fig. 5A, not shown) in which case only one answer receiving space is so aligned (there being several answer control marks for each question). A master sheet containing correct masters includes additional mark (53, Fig. 4A, not shown). Apparatus for reading the test sheet is claimed in the parent Specification 1,426,781.
Patent GB-1176584-A (GB)
Title: Compression Contacted Semiconductor Device
IPC: H01L23/488
Filed: 1968-07-31
Abstract: 1,176,584. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 31 July, 1968 [11 Aug., 1967], No. 36429/68. Heading H1K. A rigid conductive member 52 extends through the top 48 of an encapsulation for a semi-conductor wafer 12 and urges a resilient conductive member 38 into contact with the wafer 12. The resilient member, which may be 0-shaped or S-shaped, is soldered to the wafer 12, which is in turn soldered to a conductive base 28, e.g. through a layer 24 of Mo, W, Ta or alloys thereof. The solder used may be soft, e.g. Pb-based, or hard, e.g. Au- or Ag-based. The resilient member 38 may be of a Cu alloy, phosphor bronze or Be/Cu.
Patent GB-1320444-A (GB)
Title: Method of manufacturing graphite flour
IPC: C04B35/532
Filed: 1971-08-03
Abstract: 1320444 Graphite flour GREAT LAKES CARBON CORP 3 Aug 1971 [6 Aug 1970] 36459/71 Heading ClA Graphite flour is made by (i) nebulizing a pitch of coal or a petroleum derivative into spheres of 10 to 300 Á in diameter, (ii) protecting the surface of the spheres at temperatures above their melting points by forming an oxidized or resin surface thereon and (iii) carbonizing or graphitizing the spheres. Nebulization can be effected by forcing molten pitch through spray nozzles, dropping pitch on to the periphery of a spinning disc, or feeding pitch on to a face plate of an ultrasonic generator held at the melting point of the pitch. Step (ii) may be effected by coating the solidified spheres with a thermosetting resin such as a phenolic, furfural or epoxy resin, or exposing the spheres, at a temperature slightly below the softening temperature of the pitch to an oxidizing atmosphere such as oxygen, ozone, nitric oxide or mixtures thereof. The resin coated spheres may be treated to cross-link or cure the resin prior to carbonization. Carbonization is carried out by heating the coated or oxidized spheres to about 1000‹ C. and graphitization by heating the carbonized spheres in an inert atmosphere to 3000‹ C. The spheres are preferably made from coal tar pitch. The graphitized spheres are used for reflector mantles in nuclear reactors, and in the manufacture of nuclear elements admixed with fissionable materials.
Patent GB-1330235-A (GB)
Title: Colour display systems
IPC: H01J29/20
Filed: 1971-08-03
Abstract: 1330235 Cathode ray tubes ISE ELECTRONICS CORP 3 Aug 1971 [4 Aug 1970 (2)] 36527/71 Heading H1D [Also in Division C4] A colour cathode ray tube has a luminescent screen comprising one or a plurality of phosphors to provide a plurality of spectral peaks, the peaks having different build-up and persistency characteristics whereby a desired colour can be produced by adjusting the time for which the electrons impinge on an area of the screen, e.g. by supplying the beam in pulses of variable width. Examples of phosphors are given: see Division C4.
Patent GB-809220-A (GB)
Title: Rotary machine adapted to operate as a pump or as a fluid motor
IPC: F01C1/348
Filed: 1957-11-25
Abstract: 809,220. Rotary pumps and motors. EMANUEL, G:, and EMANUEL, R., [trading as EMANUEL DI GIUSEPPE E R. EMANUEL & C. S.A.S.]. Nov. 25,1957 [Dec. 1, 1956], No. 36585/57. Class 110 (2). In a rotary pump or motor wherein a vaned piston 5 is eccentrically mounted within a cylinder 3 and rotatably connected thereto by a driving vane 4, the cylinder 3 is rotatably mounted within a casing 1 by rollers or balls 2 and said casing is provided with arcuate inlet and outlet ports 6a.
Patent GB-1025968-A (GB)
Title: Electrically operated continuous stream generator
IPC: F22B1/30
Filed: 1963-09-17
Abstract: 1,025,968. Electrode boilers. E. E. WILSON. Sept. 17, 1963, No. 36606/63. Heading H5H. In a steam generating electrode boiler, parallel plate electrodes are pivoted as shown in Fig. 4, so that they can be rotated by a linkage as illustrated in Fig. 5, to vary the spacing between them uniformly (i.e. the plates remain substantially parallel). Feedwater is supplied to the boiler 10 via a reservoir tank 16, Fig. 1, so that when the boiler pressure rises due to steam generation, valve 24 opens and returns hot water to the storage tank. Operation of the linkage to vary the electrode spacing, and hence the rate of heat generation may be manual or controlled by boiler temperature or pressure.
Patent GB-785262-A (GB)
Title: Improvements in or relating to hypotensive and sedative preparations
IPC: A61K9/22
Filed: 1955-12-23
Abstract: A therapeutic preparation in dosage unit form comprises an ingestible capsule containing an initial dose of a Rauwalfia alkaloid in an amount equivalent to from about 0.03 mgm. to 2 mgm. of Reserpine and a minimum of about 50 pellets containing a Rauwalfia alkaloid in an amount of from about 100 per cent to about 500 per cent by weight of the initial dose, these pellets being provided with a coating of a time delay material that is resistant to disintegration in the gastro-intestinal tract and will provide for a gradual release of medicament in said tract. The pellets of alkaloid are formed by coating cores of sugar or synthetic resin, e.g. a copolymer of methacrylic acid and dibenzene, or nitrocellulose spheres or rape seeds with syrup and then dusting on the medicament in powdered form or by applying the medicament dissolved in an adhesive solution, e.g. of polyvinyl pyrrolidone in ethyl alcohol, water and trichlorethylene to the cores.  The pellets are coated with the time delay material which may comprise a water-insoluble ingestible wax, glyceryl esters of higher fatty acids, fatty acids containing 12 to 22 carbon atoms, fatty alcohols, higher esters and sterols, e.g. glyceryl mono-, di-and tri-stearates, cetyl palmitate, diglycol stearate, glyceryl myristate, cetyl alcohol, cholesterol and triethylene glycol monostearate.  The time delay material is applied in solution using ethyl alcohol or carbon tetrachloride as solvent, the coating thickness is adjusted to provide for varying release periods in the gastro-intestinal tract, and to provide a sustained therapeutical level for from 6 to 24 hours.
Patent GB-320567-A (GB)
Title: Improvements in or relating to nozzles
IPC: B05B3/00
Filed: 1928-12-14
Abstract: 320,567. Schlick, G. Dec. 14, 1928. Nozzles for producing whirling spray..- An atomizing nozzle in which a grooved insert member E, Fig. 5, is placed between a circulating chamber and the mouth M of the nozzle has one or both ends of the insert member of truncated conical form with grooves T, Figs. 2 and 5, extending over the truncated conical portion and beyond each edge. into the adjacent surfaces, intersection therewith; the inlet end of the grooves being of greater cross-sectional area than the exit ends. The grooves may be curved so that one end of each lies in a plane longitudinal of the member E, whilst the other lies in a plane substantially tangential thereto. In a modification the insert member is frusto-conical at both ends which are provided with similar ducts so that it may be reversible.
Patent GB-1221895-A (GB)
Title: Apparatus for stranding elongate elements together
IPC: D07B3/00
Filed: 1969-07-23
Abstract: 1,221,895. Stranding wires. SIEMENS A.G. 23 July, 1969 [23 July, 1968 (2)], No. 37158/ 69. Heading D1T. A storage stranding machine of the kind making cable with reversed directions of lay is characterized in that the ratio between the drawing-off speed of rotation of the store and the speed of rotation of the store is always substantially constant even on reversal of rotation. The preferred variation of the rotational speed in of the store as a function of time t is shown in Fig. 2; and the preferred variation of the speed of the strand as it is drawn from the store is shown in Fig. 3. It will be seen that a substantially constant ratio always exists between, their two speeds, even on reversal of rotation. The period L corresponds to the period of time in which the store performs the desired number of revolutions in one direction before reversing. The period L also corresponds to the period of time in which a length of the strand elements which corresponds to the storage capacity of the store, runs into the latter. Figure 4 shown five stores 1 each of which operates as described above. They operate simultaneously and the five units which they provide (for example star quads) are twisted together by a rotating store 14 that also operates as described above. Between each store I and the store 14 the unit 9 passes through a length store 10, consisting of rollers 11 and 12, which support (loops of the units. The stores 1 may have different speeds of rotation and need not all have the same direction of rotation at any instant. In this way an electrical decoupling of the units subsequently stranded to form the cable 15 is ensured. The individual units 9 are passed around the rollers 11 and 12 with different numbers of turns, so that the units have different lengths of travel in passing from the stores 1 to the die 13. This ensures that the points of the individual units at which the twisting direction is reversed do not lie in juxtaposition to one another after the stranding of the units to form the cable 15. An identifying helix is applied by a device 16.