baber/WOPTO huggingface dataset:
Patent GB-1194982-A (GB)
Title: Device for the Measurement of an Electrical Current Flowing in an Aerial High-Voltage Conductor
IPC: G01J4/04
Filed: 1968-01-11
Abstract: 1,194,982. Current measurement. MERLIN GERIN. Jan. 11, 1968 [Jan. 18, 1967], No.1584/68. Headings G1A and G1U. In apparatus for measuring current in a high voltage line 13, the current is passed through a winding 17 to control the magneto-optic body 16 of a Faraday effect device so as to rotate the plane of polarization of a polarized light beam P passing therethrough, the rotated beam being immediately passed to an analyzer 100 which converts it to a beam whose intensity is related to the degree of rotation of the plane of polarization. The beam is transmiteed to a low voltage measuring station where it is passed through a polarizer 101 set to the same angle as the analyzer 100. The light beam from the polarizer is then passed through the magneto-optic body 18 of a second Faraday device to an analyzer 20. The amplitude of the signal derived from the analyzer 20 is detected by photo-cell 21 and used to control a balancing device 24 and amplifier 25 to provide an electric signal which is passed to winding 19 around the body 18 to produce that degree of rotation of the light beam, corresponding to the rotation produced by the current to be measured in the magneto-optic body 17, which reduces the output of analyzer 20 to a given, near zero value. The amplitude of the controlled signal, which represents the current in the conductor 13 is measured at the load 26. The system eliminates the possibility of errors due to polarization distortion which might occur in a polarized beam passing along the long path between the high and low voltage parts of the system.
Patent GB-339164-A (GB)
Title: Improvements in and relating to electric light shades and fittings
IPC: F21V1/02
Filed: 1930-01-17
Abstract: 339,164. Hamlyn, S. W., and Dernier & Hamlyn, Ltd., L. Jan. 17, 1930. Shades and shade holders. - In an electric lampshade the supporting members a are each made from a single piece of metal and formed with one or more substantially S-shaped clips c adapted to receive the edges of adjacent glass or like panels d and with an outstanding foot b to support the bottom edges of the panels. The foot may be turned over and under, or have a separate member e riveted thereto, so as to form a slot f to support a lower glass disc h. To allow of easy insertion of the disc h, one or more of the members e are hinged, or formed with a split socket j<1> so as to be slidable into position. The shade may be covered by an upper glass disc k provided with a central aperture, and the members a may be riveted or otherwise attached to a suspension ring carrying the electric lamp holder, or to a back plate when used as a wall lampshade.
Patent GB-553421-A (GB)
Title: Improvements in or relating to apparatus for the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/74
Filed: 1942-02-09
Abstract: 553,421. Electrical precipitation apparatus. LODGE-COTTRELL, Ltd. (International Precipitation Co., Inc.). Feb. 9, 1942, No. 1701. [Class 39 (i)] In apparatus for the electrical precipitation of particles suspended in gases, in which the collecting electrodes have portions projecting into the precipitating field so as to produce regions of concentrated electric field alternating with regions of less concentrated field, and in which means are provided for removing the deposits from the projecting portions as described in Specification 383,547, [Group III], the projecting portions and their cleaning devices are made as unitary structures separately removable from the precipitator. As described, the walls of the precipitator 10, Figs. 1, 4, form the main part of the collecting electrodes, and the projecting parts are formed of bars 13. These are mounted for rotary movement on a pintle 22 carried by a plate 23 welded to a slide 21 and tapered to fit mto a stirrup 35 on the wall of the precipitator. The slide carries a channel member 24 with a cleaning pad 25 against which the bar 13 rests, and the whole structure is carried by a washer 26 which covers the aperture in the top of the precipitator through which it is inserted. The top of the bar 13 has a reduced end 131 to which is keyed a pulley by which the bar is rotated. The discharge electrodes 19 may be of wire or pronged type or as described in Specification 553,420 and are carried by a bus-bar 18 mounted on insulators 14 in compartments 15 to which air under pressure is admitted by conduits 16 and fibrous filters 6.
Patent GB-1288205-A (GB)
IPC: C07C213/00
Filed: 1970-01-14
Abstract: 1288205 Resolution of amines and novel amine salts F HOFFMANN-LA ROCHE & CO AG 14 Jan 1970 [30 Jan 1969] 1755/70 Heading C2C The invention comprises novel salts of (-)-di- O - isopropylidene - 2 - keto - L - gulonic acid with primary, secondary or tertiary amines containing at least one chiral centre and in which the amino nitrogen atom is either substituted by or is part of aliphatic, heterocyclic or alicyclic moieties but is not directly substituted by an aryl group, and a process for the resolution of such amines in racemic form by treating the racemic amine with (-)-di-O-isopropylidene-2- keto-L-gulonic acid to form the diastereomeric salts, separating these salts, e.g. fractional crystallization, decomposing the salt of the desired diastereoisomer by treatment with a base which is stronger than the amine, and recovering the desired enantiomer. The other enantiomer can be similarly recovered. The resolving agent can be recovered by treating the liquors remaining after treatment of the desired or undesired salt with a base stronger than the amine, with a mineral acid at a temperature of - 5 C. to +15 C. to precipitate the resolving agent. Amines which can be resolved include ()-α- methyl-benzylamine, ()-α-(1-naphthyl)-ethylamine, D,L - amphetamine, D,L - 2 - benzylamino - 1 - propanol, D,L - threo - 1 - (p - nitrophenyl) - 2 - amino - 1,3 - propanediol, D,L- dopa, () - 1 - (p - methoxybenzyl) - 1,2,3,4,5, 6,7,8 - octahydroisoquinoline, () - 1,2,3,4- tetrahydro - 7 - methoxy - 4 - phenylisoquinoline, () - 3 - methoxymorphinan and () - 3- hydroxy-N-methylmorphinan. Some of the amines are useful as pharmaceuticals or as resolving agents for racemic acids.
Patent GB-607723-A (GB)
Title: Improvements in and relating to the handling of particulate materials
IPC: B01J8/00
Filed: 1946-01-18
Abstract: 607,723. Pneumatic conveyers. ARNOLD, M. H. M., YOUNG, R. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 18, 1946, Nos. 1769 and 35881. [Class 78 (i)] A bed 2, Figs. 2 and 4, of particulate solid material is maintained from a column 4 terminating at its surface and is fed, as required into a vessel 1 by pass ing gas through it at a suitable velocity, e.g by way of a perforated or porous support 6. As the gas velocity is increased up to a critical value at which the material becomes fluid, its angle of repose is progressively reduced to zero, and the material consequently flows into the vessel 1 at an increasing rate. At velocities above the critical value the discharge rate remains constant, until ultimately the material becomes entrained in the gas stream. A preliminary calibration with a particular apparatus and material consequently enables varying discharge rates to be obtained by applying the appropriate gas velocities. In Fig. 2, the column 4 is confined by a tube 5 terminating at the level of the undisturbed bed, which is disposed in a side chamber communicating with the vessel 1 and confined by a weir 9. Alternatively, the bed may be located in the vessel 1 and surrounded by a weir. By terminating the tube 5 substantially at the level of the weir, discharge only occurs when the gas velocity is sufficient to render the material fluid (zero angle of repose), and the discharge rate is constant. In Fig. 4, a bed 8 of material is maintained at a fixed level 11 in the vessel 1 by a pipeline 10 connected directly with the bed 2 and column 4. A second material is supplied by a pipeline 12, and is mixed with material from the bed 2 by applying gas to the bed through a connection 7. In Fig. 1 (Comp.), the bed is located in a passage 17 between the vessel 13 to be filled and the supply column 15. The floor of the passage has a recess 18 containing fragments of refractory material of decreasing particle size upwards, and through which gas is passed from a pipeline 19 to discharge material from the bed. The material is maintained at a fixed level 20 in the vessel 13 by a direct connection from the column 15. The invention is applicable where reaction is required between a particulate solid and a gas or vapour, or between the components of a gaseous mixture and a catalyst. It is also applicable to the process of Specification 569,691, [Group III], in which coke-oven gas is passed through a bed of active carbon, maintained as a fluid bed, for the recovery of ethylene. Specification 596,258, [Group III], also is referred to.
Patent GB-1455993-A (GB)
Title: Glucose isomerase
IPC: C12N9/92
Filed: 1973-01-12
Abstract: 1455993 Glucose isomerase ex atypical Bacillus coagulans NOVO INDUSTRI AS 28 Dec 1973 [12 Jan 1973] 1773/73 Heading C3H [Also in Division C2] Glucose isomerase is obtained by cultivating an atypical Bacillus coagulans, e.g. NRRL numbers B-5649 to B-5666 which is productive of glucose isomerase and capable of growth on inorganic nitrogen sources, on a nutrient medium containing a nitrogen source, a carbon source, e.g. xylose, small amounts of inorganic salts, at pH 5-9 and 40‹ to 65‹ C. and then recovering the glucose isomerase. The enzyme is used in the isomerization of glucose to fructose (see Division C2). A method for isolating the glucose isomerase producing microorganism comprises dispersing microorganism containing samples in a growth medium containing xylose and only inorganic nitrogen nutrient and incubating at 60-65‹ C.; recovering and further isolating in pure culture form the microorganism capable of sustained growth under the above conditions.
Patent GB-171057-A (GB)
Title: Improvements in screw propellers
IPC: B63H1/20
Filed: 1921-01-12
Abstract: 171,057. Stephens, J. Jan 12, 1921. Screw propellers.-The boss A of a screw propeller is bored to receive the cylindrical shank B of each blade and tapped to receive set-screws D which abut on a flat formed in a channel C in each shank. For setting the blades to any other pitch, a new flat is made in the channel. A cover and fairing E is secured to the boss by screws F. Specification 5074/01, [Class 137, Ventilation], is referred to.
Patent GB-693391-A (GB)
Title: Improvements in and relating to methods of phosphor application
IPC: C09K11/02
Filed: 1951-01-24
Abstract: 693,391. Luminescent materials and processes. THORN ELECTRICAL INDUSTRIES, Ltd. Jan. 24, 1951 [March 1, 1950], No. 1850/51. Class 39(i), The process of coating a support, for example, the envelope of a fluorescent discharge lamp, with a phosphor comprises the steps of adding to a suspending vehicle, including a binder, the phosphor and a compound easily and entirely decomposable by heating to give a non-oxidising gaseous phase (e.g. ammonium oxalate), applying the resulting suspension to the support and heating to decompose the compound and to remove the binder. The oxalate forms non-oxidising atmosphere' of ammonia, carbon dioxide and water, which protects the phosphor from oxidation during the first phase of decomposition of the binder. The application to a white-fluorescing calcium halophosphate phosphor is described.
Patent GB-735293-A (GB)
Title: Improvements in and relating to phosphate fertilizers
Inventor: RAYNER JOHN WILFRED RICHARD
IPC: C05B11/06
Filed: 1952-01-23
Abstract: Compound phosphate fertilizers containing 30 per cent to 60 per cent of their P2O5 content in water-soluble form are prepared by adding at some stage subsequent to the ammoniation in the process described in Specifications 697,019 or 702,860, a quantity of water-soluble phosphate sufficient to give the desired portion of water-soluble P2O5.  The water-soluble phosphate may be added for instance in the form of ammonium phosphate together with ammonium sulphate and muriate of potash. According to a typical example Morocco phosphate was reacted in a plant and under operating conditions as described in Specification 697,019, with nitric acid solution of 50 per cent strength, and the products reacted with aqueous ammonia followed by the addition of ammonium sulphate.  After this, material recycled from the final step of the process was added to the mass together with a concentrated mixed fertilizer containing 12 per cent of water-soluble P2O5, 12 per cent of N2 and 15 per cent of K2O.  Of the total citric soluble P2O5, 50 per cent was water-soluble.ALSO:Compound phosphate fertilizers containing 30 to 60 per cent of their P2O5 content in water-soluble form are prepared by adding at some stage subsequent to the ammoniation in the process described in Specification 697,019 or 702,860, a quantity of water-soluble phosphate sufficient to give the desired portion of water-soluble P2O5.  The water-soluble phosphate may be added for instance in the form of ammonium phosphate together with ammonium sulphate and muriate of potash.  According to a typical example Morocco phosphate was reacted in a plant and under operating conditions as described in Specification 697,019, with nitric acid solution of 50 per cent strength, and the products reacted with aqueous ammonia followed by the addition of ammonium sulphate.  After this, material recycled from the final step of the process was added to the mass together with a concentrated mixed fertilizer containing 12 per cent of water-soluble P2O5, 12 per cent of N2 and 15 per cent of K2O.  Of the total citric soluble P2O5, 50 per cent was water-soluble.
Patent GB-982836-A (GB)
Title: Tuning of resonant lengths of waveguide
IPC: H01J25/22
Filed: 1962-01-18
Abstract: 982,836. Klystrons. STANDARD TELEPHONES & CABLES Ltd. Jan. 18, 1962 [Jan. 24, 1961], No. 1891/62. Headings H1D and H1W. [Also in Division H3] Apparatus for adjusting the resonant frequency of a resonant length of hollow waveguide coupled to a waveguide feeder through a waveguide diaphragm, comprises a rod of dielectric material positioned to project through the diaphragm, the distance the rod projects into the resonant length being adjustable. As shown, the output from a reflex klystron 1 is fed to a waveguide 5 through a resonant length of waveguide 2 and a diaphragm 3. Coarse tuning of the resonant frequency of waveguide 2 is obtained by an adjustable screw 4; a dielectric rod 7 (e.g. of ceramic material) projecting through the diaphragm 3 into the waveguide 2 finely tunes the waveguide by varying the longitudinal position of the rod. The rod may slide in a hole 8 provided in the wall of the waveguide 5 or alternatively the feeder and resonant waveguides are staggered at their junctions so that the rod may be shorted (Fig. 3, not shown).
Patent GB-1025391-A (GB)
Title: Improvements in and relating to gravity roller conveyors
IPC: B65G13/00
Filed: 1961-01-17
Abstract: 1,025,391. Roller mounting for rollerway conveyer. R. C. HANCOCK. April 9, 1962 [Jan. 17, 1961], No. 1960/61. Heading B8A. In a rollerway conveyer, a roll 1 is mounted at its ends in the side beams 3 of the conveyer frame by means of clamps 2. Each clamp has a spigot 13 on which rests the end of the roll, and it hooks over the side beam at 12 and is secured at 14, so that it is displaceable along the length of the conveyer. Each clamp may support two rollers.
Patent GB-453812-A (GB)
Title: A process of synthetically preparing ª‰(10)-oxycamphor
IPC: C07C49/513
Filed: 1935-04-29
Abstract: 10-Oxycamphor is prepared by heating a 3 : 10-dihalogencamphor with an alkali metal salt of an organic acid, e.g. of acetic, propionic or benzoic acid, to form the corresponding ester of 3-halogen-10-oxycamphor and then effecting in either order the removal of the halogen by treatment with a reducing metal and acid and the saponification of the ester with alkali.  According to the examples: (1) 3 : 10-dibromo camphor is heated with anhydrous potassium acetate in glacial acetic acid, the resulting 3-bromo-10-acetoxylcamphor then treated with zinc dust and acetic acid to give 10-acetoxylcamphor which is saponified by means of alcoholic caustic potash; (2) the 3-bromo-10-acetoxylcamphor of (1) is first saponified with alcoholic caustic potash and the product then treated with zinc dust in presence of acetic acid. The product, whose formula is given, may be oxidized with potassium bichromate and sulphuric acid to 10-apocamphor-1-carboxylic acid (ketopinic acid).
Patent GB-632061-A (GB)
Title: Improvements relating to electrical secondary batteries
IPC: H01M50/40
Filed: 1948-01-22
Abstract: 632,061. Batteries. YOUNG ACCUMULATOR CO., Ltd., and CALLENDAR, L. H. Jan. 22, 1948, No. 2027. [Class 53] An accumulator plate is enclosed in an envelope the walls of which are made of fibres of glass or,resin, bonded together with rubber, phenol formaldehyde or other synthetic resin, polythene, vinyl chloride or acetate, methyl methacrylate, bitumen, silicon esters &c. The bonding material may be applied as an emulsion or solution which may be sprayed on to the fibres, or a mat of the fibres may be dipped into the solution. Suspensions of clays such as kieselguhr may also be used. The walls of the envelope thus prepared are united along at least three of their edges by rubber or other plastic material which serves as a cushion for the edges of the battery plate. The envelope is built round the plate in a mould such as that described in Specification 448,468. Holes or notches may be provided in the envelope to form keys between the side walls and the rubber &c. edges during the moulding process.
Patent GB-660789-A (GB)
Title: Propellant charge
IPC: F02K9/36
Filed: 1948-01-22
Abstract: 660,789. Rocket propellent charges. AEROJET ENGINEERING CORPORATION. Jan. 22, 1948. [May 28, 1945] No. 2036/48. Classes 9 (i) and 9 (ii). A rocket propellent charge comprises a solid stick of self-combustible propellent with an ignition-retarding coating covered by a fireproofed wrapper, the coating consisting of a slow-burning thermoplastic material. A charge 10 for a rocket motor is formed by mixing asphalt with potassium perchlorate or other perchlorate. The mixture is heated and cast in a cylindrical mould. Whensolidified, the charge is coated with asphalt, thermoplastic resin or other thermoplastic slow-burning substances. The coated charge is then covered with a tape 14 helically wound along its cylindrical surface. Strips of tape 13 are placed over one end of the charge and a reverse helical winding 16 is then applied. A metal plate 17 with projections 18 is placed over the covered end and secured to the charge by strips 20 extending along the charge. A third helical winding 30 is carried along the charge in the same sense as the first winding. A fireproofing solution such as ammonium sulphamate or zinc chloride is sprayed over the tape and when dry a corrugated paper liner 21 is secured to the charge by tapes. The exposed end 15 of the charge is grooved to facilitate ignition and the charge is inserted into the combustion chamber 23 of a jet motor 22 with the exposed end adjacent nozzle 24. A spacing disc 26 of ethyl cellulose, rubber or other thermoplastic material is placed against the covered end of the charge and an end cap 25 is then screwed on to the chamber. The charge is fired electrically by closing the circuit through leads 29 to an igniter 28.
Patent GB-1090284-A (GB)
Title: Air conditioning control system incorporating a programming device for timed switching of electric circuits
IPC: G05B19/08
Filed: 1965-01-18
Abstract: 1,090,284. Timed control of electric circuits. OHBAYASHI-GUMI Ltd. Jan.18, 1965 [Jan.18, 1964], No.2132/65. Heading G3T. In an automatic control system for air conditioning plant in buildings a master clock 1 sends pulses e.g. at 30 sec. intervals to a clock 2 which through a relay such as a stepping or contactless relay delivers quarter-hourly signals to two control panels 3 of which one, Fig.2 is a start panel 3 and the other, Fig. 3 (not shown) is a stop panel (3"). Contact pins 4 are insertable in sockets 4 in these panels at the intersection points of vertical lines denoting times of day and horizontal lines A to J denoting particular equipment to be started or stopped according to a selected programme. Signals are thereby delivered at the appropriate times to a control mechanism 5 which may comprise a number of stepping or contactless relays, and thence to motor circuits Ml to M4. The mechanism 5 may be arranged to start the motors one after another to avoid overloading in the event that a single instruction from the panel 3' otherwise calls for them to be started together. In the motor circuit a contact (7) Fig. (not shown) is closed by a D.C. input from the panel and closes a three-phase A.C. contact (8) for the motor.
Patent GB-638282-A (GB)
Title: Improvements in recuperative heat exchangers of the rotary type for gaseous media
IPC: F28D11/02
Filed: 1947-01-23
Abstract: 638,282. Rotary plate heat-exchangers; regenerators heating air for combustion. AKTIEBOLAGET MOTALA VERKSTAD. Jan. 23, 1947, No. 2181. [Class 64(iii)] In a recuperative heat-exchanger in which two gases, e.g. air and flue gas, flow radially through adjacent or alternate unobstructed passages 4, 5 formed in a housing 8 by one or more smooth metal discs 3 fixed transversely on a rotatable shaft 1, the set of passages for each gas communicating with a separate chamber 11 or 15 around the shaft 1 and with a separate outer chamber 31 or 32, the two gases are in contra-flow between the inner and outer chambers. The space between the inner edges of the discs and the hub 2 is divided by walls 25, see Fig. 5, into four channels 26a, 26b, 27a, 27b along the axis, of which two 26a, 26b communicate with passages 4 and the others with passages 5. On the curved surface of the rotor a number of openings are arranged in rows parallel to the axis, the rows of openings 23 corresponding to alternate passages 4 for air flow being screened by channels 22 and offset from the rows of openings 35 corresponding to the intervening passages 5 for the flue gases. The channels extend along the rotor parallel to the axis and project to act as fan blades for the flue gases which pass from the openings 35 (see Fig. 5) and the bottom half of Fig. 7, into the spiral-shaped outlet chamber 32 formed around the rotor by the housing 8, having entered the passages 5 from channels 27a, 27b and an inlet 14. The air enters an axial inlet 10 in the end wall 9 of the housing 8 and passes through the inlet chamber 11, radial passages 17 (see Fig. 3) between the end disc 6 and an outer wall 19 of the rotor, to the channels 22. From the channels it passes through flow passages 4 towards the axis and channels 26a, 26b from whence it is drawn, by fan blades 29 attached between a large end disc 3a and an end wall of the rotor, into the outlet chamber 31. A stationary partition 30 with a labyrinth packing device separates the outlet chambers 31, 32 which have tangential outlets (not shown). A modification, without a fan wheel, is described in which radial channels are formed at one end of the housing, the air entering the apparatus by the alternate radial channels and leaving it by the intervening radial channels at the same end of the housing. The air is throttled, to control its velocity, as it leaves the channels extending along the curved surface of the rotor to enter the flow passages between the discs. The four walls forming the hub channels are curved to form fan blades. Specification 587,149 is referred to.