baber/WOPTO huggingface dataset:
Patent GB-773783-A (GB)
Title: Travelling wave electron discharge devices
IPC: H01J25/50
Filed: 1953-08-14
Abstract: 773,783. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Aug. 14, 1953 [Aug. 23, 1952], No. 22494/53. Class 39(1). In a helix type travelling wave tube having coaxial feeder lines there is provided a velocity jump electron gun for noise reduction and an input coaxial line capacitatively coupled to the helix so that the helix can be isolated from the coaxial line for D.C. The gun comprises triangular plates 9-14, Fig. 1A with circular central areas formed as cathode 19, intensity control and focusing electrode 10, first anode 11 carrying first drift tube 22 and second anode 12 carrying second drift tube 23. Plate 13 supports drift tube 23 and plate 14 is brazed to plate 16 to conduct heat thereto and to align the gun. Gun electrodes 9-14 are aligned relatively to one another by three dielectric rods 15 at the corners of triangular plates 9-14. Non-magnetic plate 16 is bonded to metal rods 17 carried by magnetic member 18. The lengths and potentials of drift tubes 22, 23 are such as to give a potential jump (acceleration) at the gap between them which is positioned at a velocity fluctuation maximum so as to reduce noise. The radio frequency section of the tube, Fig. 1B, includes cylinder 25 carrying triangular element 24 which can slide in cylinder 26 to take up differences in thermal expansion. Member 24 carries plate 28 having an aperture with an offset portion through which D.C. lead 29 passes to coupling section 7 connected to helix 5 the first turn of which is so positioned (near a current modulation maximum) as to minimise noise in the output. The coupling section 7 comprises conductive cylinders 31, 35 with dielectric cylinder 34 between and a further conductive cylinder (not shown) inside rods 6, which is kept at ground potential and connected to cylinder 35 by a strap 32, 33 is an input coaxial line cylinder 34 may be of glass braid or ceramic glaze annealed at a high temperature. The helix 5 is bonded to three dielectric rods 6 and is provided with loss material 6a. An external electromagnet or permanent magnet focuses the beam. Specification 706,958 is referred to.
Patent GB-381652-A (GB)
Title: Improvements relating to devices for use as racks or tables in motor or other vehicles
IPC: B60R7/04
Filed: 1931-08-10
Abstract: 381,652. Luggage racks and table fittings for vehicles. RICHARDSON, C. R., Widmore, Stoke Mandeville, Aylesbury, Buckinghamshire. Aug. 10, 1931, No. 22563. [Classes 103 (ii) and 108 (i).] A rack or table for motor &c. vehicle comprises a tray having extensible means composed of rigid members by which it is attached to the vehicle roof so that when the said means are extended the tray serves as a pendent table. The table or tray 1 is carried by extensible lazytong mechanism 2 from lugs 6 mounted on the inner surface of the vehicle roof and is adapted when in its collapsed or partially collapsed state to serve as a luggage rack. A spring-controlled latch 8 is provided adapted to co-operate with a pin 12 for automatically locking the device in its collapsed condition. The lugs 6 may be mounted so as to run on rails 3 to enable the device to be moved longitudinally of the vehicle at will. A recess may be provided in the roof into which the device is adapted to be collapsed.
Patent GB-1035364-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F23/02
Filed: 1963-06-06
Abstract: 1,035,364. Washing machines. SIEMENSELECTROGERATE A.G. June 6, 1963 [June 8, 1962; Oct. 19, 1962], No. 22609/63. Heading D1A. In a horizontal rotary drum washing machine, in preparation for spin-drying, a programme controller controls the flow of water to the drum to raise the level to such an extent 12 above the axis 14 that, as the drum rotates in one direction at an intermediate speed, the clothes form a continuous ring 13 which has a part located above the drum axis. As the speed is increased for spin-drying the clothes are then urged outwards by centrifugal force to engage the drum wall in a substantially uniformly distributed manner, the water then being pumped out. The drum may be driven by two motors 4, 5, one for washing and the intermediate speed and the other for spin-drying, the change from washing to intermediate speed being provided by the use of a pole-reversing motor.
Patent GB-682329-A (GB)
Title: Process for the production of vitamin b
IPC: C12P19/42
Filed: 1949-09-01
Abstract: Vitamin B12 is obtained by growing micro-organisms, e.g actinomycetes known to be capable of producing vitamin B12 on nutrient solutions, interrupting the growth of the micro-organisms before a preponderant amount of vitamin B12 has passed into the solution, separating the cells of the micro-organisms from the solution and extracting the vitamin B12 from the cells by means of water or an aqueous organic solvent.  An example is given using Actinomyces griseus.
Patent GB-297940-A (GB)
Title: Improvements in and relating to gas and like taps or cocks
IPC: F16K5/16
Filed: 1927-08-30
Abstract: 297,940. British Brass Fittings, Ltd., and Sperryn, G. N. Aug. 30, 1927. Plug cocks.-The plug of a gas or other tap is held snugly upon its seat by a spring d, which may be enclosed in a cup e, housed in a recess in the tap body and bearing against a righting washer g held rigidly on a shaped reduced extension of the plug against a shoulder by a nut k. Projections on the washer g engage righting stops on the tap body. The inlet and outlet passages in the tap body may be at a right angle.
Patent GB-656777-A (GB)
Title: Improvements in conveyor systems
IPC: B65G47/14
Filed: 1947-08-15
Abstract: 656,777. Conveyers. PUNCH ENGINEERING PTY., Ltd. Aug. 15, 1947, No. 22742. Convention date, Aug. 20, 1946. [Class 78 (i)] [Also in Group XVIII] Movable belts 2 on which articles are stored for automatic release therefrom are sub-divided by partitions 3 adjustably spaced to keep each of the articles separate from the other and to accommodate various sizes. The articles may be stored in bulk in a hopper 4 and fed to the belt by gravity, and the partitions 3 may have lugs which fit into recesses at the bottom of the hopper to lift out the articles when the belt is moved. Specification 656,771 is referred to.
Patent GB-315120-A (GB)
Title: Improvements in and relating to apparatus for the manufacture or lining of pipes by centrifugal action
IPC: B28B21/30
Filed: 1928-08-07
Abstract: 315,120. Hume, E. S. Aug. 7, 1928. Centrifugal apparatus.-Apparatus for forming or lining pipes by centrifugal moulding, of the kind in which the mould or pipe rests upon and is driven frictionally by driving and supporting wheels, is fitted with means for maintaining the mould and pipe in engagement with the driving and supporting wheels irrespective of the speed of rotation. In the constructions illustrated in Figs. 2 and 3 three metal straps 2 carrying renewable bearing blocks 11 contact lightly with flanged collars 6, secured detachably on the mould, and are adjusted by the screw-and-nut mechanism 25. The blocks 11 may be omitted, and the straps may contact directly with the mould casing, the collars 6 in that case being dispensed with. Lubricating means 13 are fitted to the straps, and rubber washers 22 to the locking-drum bolts. The apparatus is shown also as a weighted rope fitted to the upper row of moulds which are arranged in tiers and driven from a common source by frictional contact with each other. The members 11 may comprise metal boxes filled with renewable bearing material. Interchangeable sleeves and washers may be fitted round lengthened bolts 27, to enable the apparatus to be fitted readily to moulds of different diameters. The bands may be formed in sections hinged end-to-end.
Patent GB-167086-A (GB)
Title: Improvements in and relating to chuck spindles for wooden core polishing wheels and the like
IPC: A61C3/06
Filed: 1920-07-30
Abstract: 167,086. Dental Manufacturing Co., Ltd., and Pearson, W. T. July 30, 1920 Wheels. - The spindle 1 of a woodencored polishing-wheel or like tool is made of pyramidal form with tapering sharp corners. The corners grip the conical hole in the core 2, and the wheel &c. is retained in place by a nut 4 screwing on the end of the spindle. The spindle may have three or more sides; it may be employed as a reamer for enlarging the hole in the core when this is worn, or when the position of the wheel on the spindle is to be changed.
Patent GB-324043-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/04
Filed: 1928-08-08
Abstract: 324,043. Baker, T. T. Aug. 8, 1928. Colour photography, multicolour-screen processes for.-To reduce white hue in printing from a multicolour-screen master transparency on to a multicolour-screen material, the silver deposit in the master transparency is selectively intensified. The master transparency is treated with a reducer such as ferricyanide, which preferentially removes silver from the low densities, and then intensified. For example, where the master transparency has been exposed to green light, a small amount of silver will be exposed behind the red and violet elements of the screen. When intensified as above and reversed, the red and violet elements will be opaque and undiluted green will be transmitted by the green elements. White hue may be further reduced by selecting and concentrating the dyestuffs forming the screen for the positive material (or, according to the Provisional Specification, the master film), so that the spectral bands of colour transmitted by the screen elements do not overlap. The grain size and contrast of the two emulsions are preferably as described in Specification 322,231. The Provisional Specification describes also a method of printing by parallel rays of light. Specifications 4993/07, 217,557, and 322,432 also are referred to.
Patent GB-1126540-A (GB)
Title: Process for purification of phthalic acid anhydride
Inventor: DRESCHER PAUL
IPC: C07C51/573
Filed: 1966-05-23
Abstract: 1,126,540. Phthalic anhydride. CHEMISCHE WERKE BUNA, VEB. 23 May, 1966, No. 22914/66. Heading C2C. [Also in Division B1] Phthalic anhydride, produced by the oxidation of o-xylene, is purified by submitting the crude anhydride to distillation under reduced pressure using a distillation column connected to a condenser wherein a proportion of the overhead vapour is condensed to yield purified liquid phthalic anhydride, while the uncondented vapour, which contains volatile impurities (e.g. maleic anhydride), is conducted to a secondary condenser wherein the remaining phthalic anhydride is condensed to the solid state. Air or other inert gas may be drawn in through a valve into the pipe leading from the column to the primary condenser. The phthalic anhydride condensed in the primary condenser may be submitted to further purification in a second distillation stage.
Patent GB-602623-A (GB)
Title: Vehicle drive axle
IPC: B60K17/16
Filed: 1945-09-06
Abstract: 602,623. Change-speed gearing; positive clutches. TIMKEN-DETROIT AXLE CO. Sept. 6, 1945, No. 22946. Convention date, Oct. 5, 1944. [Class 80 (ii)] [Also in Group XXXI] In a vehicle drive axle comprising a centrally enlarged split axle housing extending transversely of the vehicle and having mounted therein at successive levels a differential, a cross-shaft and a propeller shaft between which and the differential is a double reduction selective two-speed drive, the axis of the crossshaft is disposed on the opposite side of a vertical plane containing the differential axis from the propeller shaft mounting. As shown, a differential casing 34, Fig. 1, journalled in the enlarged central portion of a stationary housing 10 carries externally gears 62, 66 in constant mesh with gears 86, 88 freely mounted on a cross-shaft 72 and selectively clutchable thereto by dog clutches 90<1>, 94 and 90, 96 respectively. The shaft 72 carries one bevel gear 100 of a hypoid pair, the meshing gear 130, Fig. 2, being secured on a propeller shaft (not shown). The housing 10 is split, perpendicularly to the differential axis 20, into two unequal parts 12, 14 of circular section, and has an upper offset portion 70, also of circular section, in which the shaft 72 is journalled and which has a boss 114 to which the propeller shaft bearing cage 116 is bolted. The offset 70 is so disposed that, as shown in Fig. 2, the cross-shaft 72 and boss 114 are on opposite sides of a vertical plane passing through the differential axis 20, and the propeller shaft axis makes an acute angle with the common plane of the cross-shaft and differential axes and meets it at a point removed from the axis of the cross-shaft. The parts 12, 14, which are preferably iron castings, have thin walls reinforced by deep ribs, such as 150, arranged in cross-formation and merging at their ends with the mating flanges 16, 18 and axle tubes 26, 30 of the parts 12, 14. The clutches 90<1>, 94 and 90, 96, Fig. 1, are composed of pairs of aligned toothing machined on the gears 82, 84 and the shaft 72 and selectively engaged by an internally-toothed collar 92 axially slidable by yoke means (not shown), power or manually operated through a lever 144, Fig. 2. Spring- pressed detents 97 engage bevelled ends on the collar 92 to retain it in one or other of its operative positions.
Patent GB-934687-A (GB)
Title: Preparation of n-alkyl-and n-cyclo-alkylbis (2-benzothiazolesulfen) amides
IPC: C07D277/80
Filed: 1962-06-15
Abstract: N-alkyl and N-cycloalkyl-bis-(2-Benzothiazolesulfen) amides are produced by reacting one mole of an N-alkyl or N-cycloalkyl-2-benzothiazolesulfenamide under substantially anhydrous conditions with one half equivalent of an acid having an ionisation constant Ka of above 1 x 10-3 at 25 DEG C. Acids include hydrogen chloride, hydrogen bromide, 100% sulphuric acid, chloroacetic acid, bromoacetic acid, cyanoacetic acid, dichloroacetic acid, trichloroacetic acid, o-chlorobenzoic acid, o-bromobenzoic acid, o-nitrobenzoic acid, 3,5-dinitrobenzoic acid. The reaction may be carried out in an inert organic solvent and at a temperature between -20 DEG C. and 100 DEG C. U.S.A.  Specifications 2,807,620, 2,860,142, 2,873,277 and 2,889,331 are referred to.
Patent GB-1219938-A (GB)
Title: Fuel injection valves for internal combustion engines
IPC: F02M61/18
Filed: 1968-05-15
Abstract: 1,219,938. I.C. engine fuel injectors. CATERPILLAR TRACTOR CO. May 15, 1968 [June 22, 1967], No. 23048/68. Heading F1B. A valve head 16 having a rounded shoulder 18 at its inner end is engageable with a valve seat 40 at the inner end of a valve chamber 32 having an axially-extending cylindrical wall portion 42 outwardly of and adjacent to the seat and a further cylindrical wall portion 42a of greater diameter. In the seated position of the valve head 16 fuel under pressure acts on the shoulder 18 radially inwardly of the seat and in the unseated position the wall portion 42 directs fuel to act against substantially all of the shoulder.
Patent GB-728589-A (GB)
Title: Improvements relating to the sweetening of mercaptan-containing hydrocarbon oils of petroleum origin
IPC: C10G19/02
Filed: 1951-10-04
Abstract: Hydrocarbon oil of petroleum origin and containing mercaptans is sweetened by simultaneously contacting the oil with aqueous caustic soda solution and with elementary sulphur in the form of a sulphurized oil which has been prepared by dissolving sulphur in a portion of the oil to be treated.  Instead of a specially-prepared caustic soda solution, there may be employed a spent plumbite solution (resulting from the plumbite method of refining oils) denuded of lead.  The sour oil, caustic soda solution and sulphurized oil may be mixed in a vessel provided with a stirrer until a doctor-sweet product is obtained which is then separated from the aqueous phase.  Alternatively, sour oil and sulphurizing oil may be continuously supplied to a mixing vessel containing the caustic soda solution, and the emulsion produced is allowed to overflow into a separating vessel where the treated oil and caustic soda solution separate, the latter being continuously returned to the mixing vessel.  If desired, the treated oil from the separator may be passed to a second stage of mixing and separating.  The process may be applied to the final sweetening treatment of cracked motor spirit after sulphuric acid treatment and redistillation.  Specification 728,586 is referred to.
Patent GB-1351519-A (GB)
Title: Methods and apparatus for the rearing of fish in an artificial environment
IPC: A01K61/00
Filed: 1971-04-19
Abstract: 1351519 Fish tanks MARINE PROTEIN INTERNATIONAL CORP 19 April 1971 [5 March 1970] 23347/71 Heading A1A Fish are reared at high density, e.g. over 6 lb/U.S. gallon, in a tank which is continuously supplied with air or oxygen at the bottom to obtain nearly complete saturation, and throughout which the water rises substantially vertically to overflow over the entire periphery of the top of the tank side walls. The water is fed under gravity from a storage tank 18 (Fig. 2 not shown) through the tanks and to a pond in which more fish are reared. Alternatively the water is pumped and the speed varied intermittently. Each tank, Fig. 4, comprises a water space 53 at the bottom of which a conduit 23 discharges from the previous tank and at the top of which water passes through screen 42 into channel 40. The water discharges through outlet 44 and splashes into a cone in the entry funnel 48 of the next conduit 23, the resulting turbulence assisting the loss of carbon dioxide and ammonia to and absorption of oxygen from the atmosphere. The water pours over the edge of the cone into conduit 23 where the flow draws in air through pipe 50. Air or oxygen is pumped into chamber 54 and through porous, e.g. carborundum stone, floor 59 to form bubbles between 0.1mm and 0.5mm diameter in the tank. Alternatively the gas may be pumped through a lattice of nylon mesh tubes. The screen 42 is cleaned with a brush after closing outlet 44 and opening a similar waste outlet so that the dislodged material is washed away. The tanks may be closed over and artificial lighting and temperature control employed.
Patent GB-246892-A (GB)
Title: Improvements in and relating to thermionic oscillation generators
IPC: H03B5/10
Filed: 1924-10-03
Abstract: 246,892. Allinson, C. P. Oct. 3, 1924. Thermionic generators and modulating systems. -Relates to oscillation generators in which a grid of an oscillating tetrode valve is kept at positive potential by means either of a battery provided ad hoc or of a potential divider connected across the voltage supply; and comprises arrangements in which the inner grid of the valve is connected to the source of positive potential, and either (a) one or both of the grids is reactively coupled to the plate circuit or (b) the inner grid is connected directly or through a reactance, without the interposition of resistance. Thus in the arrangement shown in Fig. 1 the inner grid 1 may be provided with a battery 2 while the outer grid 5 is oscillatorily coupled to the plate 6 by way of the tuned circuit 11. A number of different circuit arrangements is described : thus the two grids may be oscillatorily cupled together as shown in Fig. 3, or one or both of the grids may be coupled to the plate circuit. A rejector circuit, tuned to to the oscillation frequency, may be connected in series with the inner grid 1 to maintain a constant wave-length: or the potential of the inner grid may be oscillatorily coupled together as shown in output. Both grids may, as shown in Fig. 6, be connected to the positive side of the plate battery, with or without the interpositions of a choke 15.
Patent GB-1145616-A (GB)
Title: Improvements in or relating to iron-cored inductors
Inventor: KASERMANN PAUL
IPC: H01F27/33
Filed: 1967-05-19
Abstract: 1,145,616. Reactors. MASCHINENFABRIK OERLIKON. 19 May, 1967 [24 May, 1966], No. 23352/67. Heading H1T. In the iron core of, e.g. a choke coil having yokes 1, 3 comprising sheet iron stampings and a plurality of core legs 5 (only one shown), built up from stacks of sheet iron stampings 7, the stacks being separated by insulation 9, which may be of fibreglass synthetic resin plates, at least one yoke 1 comprises a plurality of yoke portions 19, 21, 23, interconnected in pairs and the yoke portions are resiliently compressed against the core legs. The interleaved stampings define air gaps 22, 24 (Fig. 5) and each of the yoke portions 19, 21, 23 is bounded by thicker outer stampings 25, 27, 29. A plate 31, 33 bridges the gap between interleaved portions 19, 21 and 21, 23 respectively and is clamped by bolts 39, nuts 45, spring washers 47 and insulation 43, 41. Each yoke portion is forced on to its associated core leg by rods 71 which carry nuts 77 and spring washers 85 which when screwed up compress bearers 60, 79 bearing on the yoke portions. The insulation 9 may be bonded with epoxy resin to the stacks of stampings. The choke may be a 3-phase device.
Patent GB-1038859-A (GB)
Title: Improvements in or relating to overhanging bracket systems
IPC: A47B57/48
Filed: 1965-06-02
Abstract: 1,038,859. Brackets. M. G. A. LEVIGNE. June 2, 1965 [June 4, 1964], No. 23567/65. Heading A4B. A substantially flat bracket a is secured to a right-angled section horizontallyextending support bar b by inserting spaced downwardly offset tenons on the rear edge of the bracket a into square perforations in the vertical limb of the support bar b, and by pressing upwardly directed projections into corresponding perforations in the horizontal limb of the support bar b. The bracket a and support bar b may be formed of metal, wood, or plastics material. The bracket a may be positioned at different positions along the support bar.
Patent GB-1344539-A (GB)
Title: Device for speed measurement of an underwater element of a  trawler unit in relation to water
IPC: G01P5/02
Filed: 1971-04-19
Abstract: 1344539 Measuring fluid flow MORSKI INSTYTUT RYBACKI 19 April 1971 [28 Feb 1970] 23691/71 Heading G1R In a trawl unit underwater element speed measuring device comprising a measuring and recording unit the arrangements is such that during trawling the resistance of a bouyant body 1 causes tension in a line 2, which has a base 6 at its free end, to deform a set of springs 3, 4 to change the position of a pin 5, slidable in guides 7, 8, relative to a recording tape 12. The tape 12 is mounted on rollers 9, 10, 11 driven by a motor contained in a watertight housing 14.
Patent GB-1419219-A (GB)
Title: Device for open end spinning of fibres
IPC: D01H4/32
Filed: 1974-05-29
Abstract: 1419219 Open end spinning PENZENSKY NAUCHNO-ISSLBDOVATELSKY EXPERIMENTALNO KONSTRUKTORSKY INSTITUT PRYADILNYKH MASHIN 29 May 1974 23813/74 Headings D1D and D1N The feed channel for feeding separated fibres from an opener to the twisting mechanism 6 is defined by at least two telescopically associated cylinders 11, 12. Retraction of the cylinder 12 provides access to the twisting device. The cylinder 12 may be retained in its upper position by screws, springs or pawls.
Patent GB-1505296-A (GB)
Title: 8-thiomethylergolines
IPC: A61P35/00
Filed: 1975-06-03
Abstract: 1505296 8-Thiomethylergoline derivatives ELI LILLY & CO 3 June 1975 [6 June 1974] 23869/75 Heading C2C Novel compounds of the Formula II wherein R is H, CN, COalk, phenyl or alk; R<SP>1</SP> is H, Cl or Br; alk is C 1-3  alkyl and the dotted line is an optical bond and pharmaceuticallyacceptable acid addition salts thereof, may be prepared by reacting a compound of the Formula III wherein R 2  is methanesulphonyl or p-toluene sulphonyl with an alkali metal salt of a compound R<SP>3</SP>5H, wherein R<SP>3</SP> is CN, COalk, phenyl or alk, optionally followed where R<SP>3</SP> is -COalk by hydrolysis to produce a compound II in which R is H. D - 6 - Methyl - 8 - mesyloxymethylergoline and its 9,10-didehydro derivative are prepared by reacting the corresponding 8-hydroxymethyl compound with methane sulphonyl chloride. Pharmaceutical compositions of the compounds II with the usual excipients are prolactin inhibitors when administered parenterally.