baber/WOPTO huggingface dataset:
Patent GB-1124941-A (GB)
Title: Improvements in or relating to control systems for electrolysers
IPC: G05D9/12
Filed: 1963-12-09
Abstract: In apparatus for electrolytic decomposition of an electrolyte into two gases, a pressure vessel containing the electrolyte has a separator for separating the portions of electrolyte from which the gases are evolved and two chambers above the electrolyte for confining the separate gases, the operation of the apparatus being controlled by a system comprising a gas-pressure regulating valve for each chamber, means for measuring the difference in levels of the electrolyte in the chambers, means for measuring the pressure of gas in at least one of the chambers and valve control means for responding to a combination of the outputs from the level difference measuring means and the gas pressure measuring means, firstly to open one of the valves and to close the other so as to keep the difference in levels to a minimum or within determined limits and secondly to open or close both valves to keep the pressures of the gases in both chamber at a determined value or within determined limits. Preferably the valves are operated by signals derived from computing relays.
Patent GB-1174066-A (GB)
Title: Improvements in and relating to Driving Gears for Internal Gear Pumps
Inventor: ECKERLE OTTO
IPC: F04C15/00
Filed: 1966-12-31
Abstract: 1,174, 066. Rotary positive displacement pumps. O. ECKERLE. Dec.31, 1966, No.48631/66. Heading F1F. A gear for a rotary positive displacement pump of the internally meshing gear-type includes a plurality of axially-extending and internally orientated gear-teeth 3, Figs. 1 and 2, which are attached to a circular plate 2 having therein a recess 7 and grooves 8 to engage with the end of a driving shaft 4 and radial projections 5 thereon, respectively, a sealing ring 6 being lodged between the perimeter of said recess and said end of the shaft. The gear aforesaid is pressed against an externally toothed gear (not shown), which meshes therewith, by the pressure of the working fluid communicated from the high-pressure side of the pump through a passage 10, pressures on opposite sides of the plate 2 in a region radially inwards of the ring 6 being equalized through a bore 9. In a second embodiment, Fig. 4 (not shown), short radial-grooves (19) replace the grooves 8 and radial passages (20) in the plate 2 render a chamber bounded by the sealing ring in communication with the high-pressure side of the pump. In a third embodiment, Figs. 5 and 6 (not shown), the projections 5 are replaced by three partcircular projections (14) that engage with a matching recess (17) in the gear concerned. In a fourth embodiment, Figs. 7 and 8, the gear in question has a rib 28 that engages with a slot 29 in the driving shaft and a circlip 27 locks the end of the shaft within a circular recess in the gear. In a fifth embodiment, Figs. 9 and 10 (not shown), the gear is coupled to the driving shaft by a transverse pin (39) passing through the shaft and radial bores (37) in the gear. To prevent the pin being dislodged it may have an annular groove (41, Fig.11, not shown), at its centre engaged by a spring-loaded bolt (43) in the shaft. A sixth embodiment, Figs. 12 and 13 (not shown), is generally similar to the second one save that a circlip (54) locks the driving shaft within a recess (55) in the gear.
Patent GB-1396760-A (GB)
Title: Non-dispersive infrared gas analyzer having sample and reference beams using flow sensitive detector and with unbalanced operation
IPC: G01N21/61
Filed: 1972-10-23
Abstract: 1396760 Gas analyzers MINE SAFETY APPLIANCES CO 23 Oct 1972 [11 Nov 1971] 48787/72 Heading G1A In an infrared analyzer of the type disclosed in Specification 1173415 the sample 7 and reference 14 chambers are alternately exposed to radiation from source(s) 1 and 2, preferably by a rotating chopper 5, wherein between each exposure the chambers 7 and 14 are subjected to substantially equal conditions so that the detector unit 21 can return to the steady state condition. The detector unit 21 may comprise a thermistor 23 which is cooled by the infrared absorbing gas flow from one chamber 12 to another 16 (and vice-versa) when one chamber 12 is irradiated causing the gas therein to expand. Two rotating chopper systems are disclosed; one, Figs.2a-2d (not shown), comprising a rotating disc with a quadrant of it cut out, the other, Figs.4a-4d (not shown), comprising just a quadrant of a disc. The thermistor 23 is in a bridge circuit R1, R2, R3 whose output is amplified, rectified and fed, alternately in synchronism with the chopper system 5, to two similar filter circuits 36a, 36b, where they are integrated and the difference between the value stored by each filter circuit is fed to a meter 39 which indicates the amount of infrared absorbing gas present in the sample chamber 7. Two other forms of detector unit are disclosed; one Fig.5 (not shown), similar to that shown in Fig.1, indicated at 21, except that an additional chamber (a "back chamber") communicating with the air flow chamber 22 is used, the other Fig.6 (not shown), comprises a single gas absorption chamber, receiving radiation from the sample and reference chambers, which communicates with a flow chamber also communicating with a "back chamber".
Patent GB-1256255-A (GB)
Title: A shaped explosive charge container and method of making same
Inventor: ANDERSON DAVID KEAY CRICHTON
IPC: F42B1/036
Filed: 1969-10-06
Abstract: 1,256,255. Moulding containers for explosives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 Sept., 1970 [6 Oct., 1969], No. 48892/69. Heading B5A. [Also in Division F3] A method of moulding a shaped charge container having a plastics case 10 for containing a high explosive charge, an integrally moulded, plastics cavity liner 11 containing a conical layer of metal 13, e.g. copper, and a sealed chamber 15 providing a "stand-off" for the charge, comprises placing the copper cone in an appropriately shaped "split" mould (not shown) so as to divide the mould into two chambers corresponding to the chambers 14 and 15, adding the plastics material to each of the chambers, heating the mould whilst it is biaxially rotated, and finally cooling and removing the mould. An aperture 16 is then cut in the ease for charging it with explosive or it may be formed during the moulding operation. The copper cone is supported in the mould by four small notched projections with the consequence that four small areas of the cone are not covered by plastics material. The plastics material comprises polythene, polypropylene, polystyrene, polyvinyl chloride or a liquid thermosetting resin.
Patent GB-1453500-A (GB)
Title: Seal ring for rotary shaft
IPC: F16J15/16
Filed: 1974-11-15
Abstract: 1453500 Shaft seals NIPPON PISTON RING CO Ltd 15 Nov 1974 [17 Nov 1973] 49631/74 Heading F2B Split sealing rings 6 and 7 are arranged in a groove 3 in a rotary shaft 2 with their splits out of alignment and may be held against relative rotation, so as to break joint. The rings 6, 7 may be of synthetic resin. A centrifugal sealing effect is stated to be achieved.
Patent GB-1323597-A (GB)
Title: Apparatus for the noise-compensated measurement of high dc currents
IPC: G01R1/20
Filed: 1970-10-20
Abstract: 1323597 Protective arrangements BAYER AG 20 Oct 1970 [30 Oct 1969] 49709/70 Heading H2K [Also in Division G1] In apparatus for measuring the magnitude of a high direct current flowing through a conductor by sensing the voltage drop along a length of the conductor, the unwanted e.m.f. induced in the leads connecting tappings on the conductor to a meter U whenever the current changes, is suppressed by subtracting from the voltage supplied to the meter the voltage induced in a loop or coil 5 disposed adjacent the conductor. The apparatus may be used to measure the current flowing to an electrolytic cell so that short circuits in the cell can be detected.
Patent GB-1285647-A (GB)
Title: Improvements in or relating to fireproofing compositions
Inventor: ZLAMALA JOSEF
IPC: E04B1/94
Filed: 1970-10-21
Abstract: 1285647 Fireproofing composition STAVOINDUSTRIA NARODNY PODNIK 21 Oct 1970 [23 Dec 1969] 49889/70 Heading C1H A fire-proofing composition comprises 1-47% inorganic fibres, e.g. basalt with fibre length 2-30 mm., 1-54% expanded siliceous material, e.g. expanded perlite, 1-65% siliceous material with particle size less than 50 Á, e.g. milled silica, 2-75% bonding agent, e.g. cement (all percentages being based on the total dry weight of ingredients), and water. The composition as paste can be hand spread or sprayed on to steel structures.
Patent GB-1249635-A (GB)
Title: Dialyzing membrane envelope and method of its manufacture
Inventor: BIER MILAN
IPC: B01D63/00
Filed: 1968-10-21
Abstract: 1,249,635. Membrane envelope. M. BIER. 21 Oct., 1968 [10 Oct., 1968], No. 49895/68. Heading B1X. A dialysing membrane envelope for use in the parallel flow dialyser shown comprises membranes 9, 9 which constitute the two sides of the membrane envelope and are stretched within and adhesively sealed to a peripheral frame 11, 11, and inlet and outlet ports 4, 4 for liquid flowing through the envelope. The major part of the membranes may be covered with plastics netting 10, preferably low density polyethylene netting in which the two sets of strands lie in superimposed planes to produce a mixing action in the liquid flowing through the envelope, netting 9 being stretched within and sealed to frames 11. Frames 11 may be of foamed polyurethane, polyethylene or polystyrene; the adhesive seals may be made using double sided adhesive tape. The dialyser shown comprises elongated rigid and substantially flat boards 1, which may be of polypropylene, clamped face to face with the membrane envelope between them, and with ports 5, 7 and manifolds 3 for distribution of dialysing liquid.
Patent GB-1337057-A (GB)
Title: Carpet sweepers
IPC: A47L11/33
Filed: 1971-10-27
Abstract: 1337057 Carpet sweepers S A BRUSH CO Ltd 27 Oct 1971 [19 July 1971] 50009/71 Heading A4F [Also in Division B4] A carpet sweeper has a body portion, e.g. of moulded plastics material, integrally formed with a top portion 2, end portions 12, and partition walls 11, and dust trays 3 are formed integrally with the body portion and are hinged thereto along hinge lines 4. Springs 33 retain the dust trays 3 in closed position. The supporting wheels 14 are carried by axles 26 extending from brush cleaning combs 9 having attachment members 27 engaged in slots 28 in the partition walls 11. Thus as the sweeper is pressed on to a carpet the wheels 14 pivot about the members 27 into engagement with driving rims 16 on the brush 10. The latter is connected by pins 20 to a V-shaped handle bracket 10, the pins passing through grommets 22 movable in apertures 21 in the end walls 12 so that pressure applied to the handle may adjust the height of the brush 10 in accordance with the depth of the carpet pile. The handle 24 is attached by a slotted plastics member 25 to the handle bracket 18.
Patent GB-500284-A (GB)
Abstract: 500,284. Treating seeds. CARPMAEL, A. (T. G. Farbenindustrie Akt.-Ges.) June 4, 1937, No. 15567. [Class 58] Growth-promoting phytohormones (substances normally present in plants which have a specific stimulating action on the development and the growth of the vegetative system of such plants and which are substantially not consumed in their metabolism) are applied in a practically fat free form to the surface of seeds while swelling of the seeds is avoided. As examples of growth promoting phytohor.- mones #-indene acetic acid, #-indene propionic acid, #-indene-butyric acid, (alpha-naphthyl-acetic acid, the esters and salts of these acids, biotin, N-pyrimidyl-thiazolium compounds such as vitamin #<1> and isoalloxazines especially lactoflavin, are mentioned. A solution (aqueous, alcoholic or petroleum ether) of the materials may be sprayed on the seeds which are then dried or the materials may be mixed with solid carrier substances such as kaolin, chalk, calcium sulphate, diatomaceous earth, bole or calcium naphthol pitch and then applied to the seeds. A small. amount of dust binding agent such as fatty oil or fat may be added. Disinfecting agents, for example organic mercury compounds, may be added simultaneously. The seeds may be immersed in a solution of the phyto-hormones and then dried: wetting agents such as condensation products of higher molecular alcohols with ethylene oxide or isoalkylated naphthalene sulphonic acid salts can be added to the solution. Specifications 372,354, 379,956, 484,981, and 485,079 are referred to. The Provisional Specification also describes treatment with sexual and thyroid hormones.
Patent GB-1161085-A (GB)
Title: Apparatus for Flash Butt-Welding of Pipes.
Inventor: TISHURA VLADIMIR IVANOVICH
IPC: B23K11/093
Filed: 1966-11-10
Abstract: 1,161,085. Welding by pressure. INSTITUT ELEKTROSVARKI IMENI E. O. PATONA. 10 Nov., 1966, No. 50447/66. Heading B3R. Apparatus for flash-butt welding vertical pipes comprises a frame mounted on guides for movement transverse to the pipes to be welded and carrying a suspended flash-butt welding machine having two relatively movable parts with self-centring clamps. The rotor 2 of a boring installation carries guide rails 1 on which a frame 5 is movable by an hydraulic ram 6. An hydraulic supply device 8 is mounted on the frame 5 adjacent an upright 7 from which the flash-butt welding machine 9 is suspended by a rope 10 which has one end secured to a lever 11 on one side of the machine 9, passes over pulleys 13 in the upright 7 and over a pulley of an hydraulic ram 14 and has its other end secured to another lever on the other side of the machine. The machine 9 has an upper part 15 connected to a lower part 12 by the piston rods of hydraulic cylinders 17 on the part 12. Oil is supplied to the cylinders 17 by passages in the rods. Transformers on the part 12 have their secondaries connected to contact portions of clamping members in the upper and lower parts. The clamping devices in the upper and lower parts comprise a pair of shoes acted on by a pair of levers engaged by a wedge controlled by an hydraulic ram 27. In operation the assembly is adjusted to be horizontal by jacks 3 and the frame 5 is then moved away from the centre of the boring platform. The first pipe is lowered into the bore hole and fixed so that its upper end is level with the welding machine and the second pipe is lowered so that its lower end is adjacent the upper end of the first pipe. The frame is then moved forwards and by the ram 14 the welding machine is adjusted in position, the clamping devices are operated to grip the pipes and with the current supply on the flashbutt welding of the pipes is effected, the upper part 15 being drawn towards the lower part 12. Springs around the rods of the hydraulic cylinders 17 protect them from flashing.
Patent GB-1241806-A (GB)
Title: Improvements in and relating to ph sensors
Inventor: NISHIMOTO KAZUYUKI
IPC: A61B5/07
Filed: 1968-10-24
Abstract: 1,241,806. pH measuring apparatus. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. Oct.24, 1968 [Oct.24, 1967], No.50484/68.  Heading G1N. A pH sensor includes a housing 12 divided into two chambers, a glass electrode assembly 2 having an inner electrode 4 being sealed in one chamber and the second chamber being filled with an electrolytic salt 16 and provided with an inner electrode 8. The housing is closed by a lower panel 9 having terminals 23, 25 to which the electrodes 4 and 8 are connected and the second chamber is provided with a cover 18 having either two holes, one being closed by a pervious material e.g. cork, the other by a rubber closure so that water may be injected into the chamber, or one hole closed with a vinyl sponge closure which serves the same purpose as the two closures mentioned above. The glass electrode 2 has a porous bulb and is filled with a buffer solution having a pH value of 7. The housing, which is made of material which is impervious to water and is electrically insulating, may be provided with a protective cover (29), for the glass electrode, Fig. 7 (not shown) and may also be screwed into a casing containing an oscillator circuit, Fig. 6 (not shown). The sensor can then be swallowed by a person and the pH value of the contents of the stomach or intestines measured remotely by measuring the modulation of the signal from the oscillator due to electrical response of the sensor.
Patent GB-1452898-A (GB)
Title: Phosphors
IPC: C09K11/08
Filed: 1973-10-30
Abstract: 1452898 Luminescent materials RCA CORPORATION 30 Oct 1973 [30 Oct 1972] 50489/73 Heading C4S A method for preparing activated Y, or Gd or Y-Gd oxysulphide phosphors comprises heating between 700‹ and 1250‹ C. a mixture including (a) at least one of yttrium oxide and gadolinium oxide, (b) at least one of sodium fluoride, potassium fluoride, ammonium fluoride, yttrium fluoride and gadolinium fluoride in amount 0À01 to 0À30 gram atoms of fluoride radical/grm. atom of Y and/or Gd, (c) at least one activator in gram atom ratio to the Y and/or Gd of 0À001 to 0À01 and (d) a sulphur containing composition selected from alkali thiocyanates, alkali rhodanides, and compositions which yield alkali sulphides and polysulphides on heating, then cooling to room temperature. "Alkali" is defined to mean Na, K, NH 4 , Cs and Li. The process produces larger particles (e.g. 3À9 to 8À4 Á) including sintered agglomerates. Activators may be one or more of Dy, Er, Eu, Ho, Nd, Pr, Sm, Tb and Tm. Detailed preparations are included. Additives such as phosphates, sulphates, arsenates and/or germanates of one or more alkalis which are washed out after heating increase brightness. (Y 0À965 Eu 0À035 ) 2 O 2 S is specified and Tables I and II include details such as C.I.E. co-ordinates. The phosphor may be incorporated in an electron beam device.
Patent GB-1487307-A (GB)
Title: Device for eliminating electrostatic charges on surfaces
Inventor: ORFIELD MALCOLM COLE
IPC: H05F3/06
Filed: 1973-10-31
Abstract: 1487307 Discharging static electricity WIRA 28 Oct 1974 [31 Oct 1973] 50546/73 Heading H1X A device for removing electrostatic charges from a surface, e.g. of sheet material 6, consists of an earthing member 5 and a foil 1 of americum mounted on member 5 so that alpha particles ionise the air and to cause dissipation of charge from the surface, and a shutter 8 for absorbing radiation when the device is not in use. Member 5 is of heavy metal which absorbs radiation and has walls 3, and carries pointed members 4. Sheet 6 is parallel and close to foil 1 and is movable in the direction 7. The pointed members 4 dissipate part of the charge on sheet 6, and the remainder of the charge is dissipated by the ionized air. A barrier of gauge may be placed across walls 3. The foil 1 may be coated with gold, or, together with member 5, may be replaced by a bar of americum alloy. The radioactive element may be as long as sheet 6 is wide, or may comprise a number of shorter elements. Instead of the sheet 6 passing the device, the device may be moved over a surface to be discharged. Shutter 8 may be moved to its full line position to shield the foil.
Patent GB-1270776-A (GB)
Title: TRIALKYLPHOSPHINEGOLD COMPLEXES OF 1-beta-D-GLUCOPYRANOSIDES
IPC: C07F9/02
Filed: 1970-10-26
Abstract: 1,270,776. 1-#-D-Glucopyranosides and trialkyl phosphinegold complexes thereof. SMITH KLINE & FRENCH LABORATORIES. 26 Oct., 1970 [28 Oct., 1969], No. 50726/70. Headings C2C and C2P. The invention comprises compounds of the Formula I and Formula II where Z is -O- or -NH-, R is acetyl, or when Z is -O-, R may also be H, R 1  is C 1-4  alkyl, A is C 2-5  alkylene and Y is O or S, which may be prepared by reacting an alkali metal salt of a thioalkyl-1-#-D-glucopyranoside or of a 1-thio-#-D-glucopyranoside with a trialkyl phosphinegold halide. The compounds of Formulµ I and II have antiarthritic activity and may be employed as pharmaceutical agents in combination with conventional carriers. Trialkylphosphinegold halides in which the alkyl groups contain 1-4 carbon atoms may be prepared by treating a solution of thiodiglycol in an organic solvent with an aqueous solution of gold acid chloride trihydrate at -10 to - 5 C. and reacting the product with a trialkylphosphine. S - Acetyl - 2<SP>1 </SP>. thioethyl 2,3,4,6 - tetra - O- acetyl - # - D - glucopyranoside, S - acetyl - 2<SP>1</SP>- thioethyl 1 - thio - 2,3,4,6 - tetra - O acetyl - #- D - glucopyranoside, S - acetyl - 2<SP>1</SP> - thiopropyl 1 - thio - 2,3,4,6 - tetra - O - acetyl - # - D - glucopyranoside and S - acetyl - 1<SP>1</SP> - methyl - 2<SP>1</SP> - thiopropyl 1 - thio - 2,3,4,6 - tetra - O acetyl - # - D- glucopyranoside may be prepared by reacting the corresponding 2<SP>1</SP>-haloalkyl #-D glucopyranoside with potassium thioacetate. 2<SP>1</SP> - Bromopropyl 1 - thio - 2,3,4,6 - tetra - O- acetyl - # - D - glucopyranoside and 1<SP>1</SP> methyl- 21 - bromopropyl 1 - thio - 2,3,4,6 - tetra - O- acetyl - # - D - glucopyranoside may be prepared by reacting S-acetyl 1-thio-2,3,4,6-O- acetyl-#-D-glucopyranose with bromine, removing the excess bromine, and reacting the product with propylene or trans-2-butene.
Patent GB-1379559-A (GB)
Title: Modulation circuits
IPC: H04L5/04
Filed: 1971-11-02
Abstract: 1379559 Multiplex pulse signalling INTERNATIONAL COMPUTERS Ltd 31 Oct 1972 [2 Nov 1971] 50784/71 Heading H4L An arrangement is described in which two sets of digital data signals are applied to a pulse amplitude modulating circuit along with a clock signal to provide an output consisting of two channels of complementary signals with alternate clock periods modulated by the first and second input data signals respectively. The outputs appearing at terminals C, C, with data signals DB, DA, applied during clock periods I, II respectively are as shown in Fig. 1, the magnitude of clock signal C<SP>1</SP> during period I being set at a low or zero value, while during period II the clock signal has a high, or unit value. For example when input data DB is binary 0, output C will be level VC and complementary output C will be level VB, and similarly, in period II when input data DA has a value binary 0, output C will have a level VB and output C will have a level VC. Binary clock pulses C<SP>1</SP> are supplied to the base of a transistor 10 of a long-tailed pair 10, 11, the base of transistor 11 being held at a reference potential and the outputs C, C being taken from the collectors of transistors 10, 11 respectively. A switching circuit 40 consists of a long-tailed pair 21, 22, the input data DB being supplied to the base of transistor 22, the base of transistor 21 being held at a reference potential, the collector of transistor 22 being coupled via a threshold diode 16 to the collector of transistor 11 and the collector of transistor 21 being coupled via a threshold diode 14 to the collector of transistor 10. In a similar switching circuit 50, data DA is supplied to the base of transistor 26 of a long-tailed pair 26, 27, the collector of transistor 26 is connected to the collector of transistor 10 via a threshold diode 15 and the collector of transistor 27 is connected to the collector of transistor 11 via a threshold diode 17. V1 is greater than V2 but the difference is less than the threshold voltage of the diodes, and the biasing is so arranged that when one of the switching circuits is enabled, to pass modulation signals to the modulator 10, 11, the other switching circuit is prevented from passing signals.