baber/WOPTO huggingface dataset:
Patent GB-910883-A (GB)
Title: Improvements in direct current converters
Inventor: WEBB HERBERT HENRY
IPC: H02M3/338
Filed: 1958-04-29
Abstract: 910,883. Converting; automatic voltage control. RACAL ELECTRONICS Ltd. April 28, 1959 [April 29, 1958], No. 13493/58. Classes 38 (2) and 38 (4). The output voltage of a transistor D.C. converter incorporating a ringing-choke oscillator arrangement is regulated by applying to the base of transistor Tr 1  (Fig. 1) through a voltage reference device S 1 ; which may be a battery, neon tube, Zener diode or corona discharge tube, the voltage developed across a capacitor C 1  by a winding Tx 4  on the converter transformer through rectifier D 1 . If suitable, the main transformer output winding may supply C 1  instead of Tx 4 . In a modification the controlling voltage is the sum of the voltages developed across two condensers C 2 , C 3  (Fig. 2). Condenser C 2  is charged through rectifier D 2  by the ringing choke action voltage developed when the transistor cuts off while condenser C 3  is charged through oppositely connected rectifier D 3  by the voltage developed in winding Tx 5  during growth of the current through the transistor Tr 1 . The output voltage can be adjusted by varying resistor R 3 .
Patent GB-778742-A (GB)
Title: Improvements in or relating to apparatus for the production of high pressure liquid
IPC: F04B53/00
Filed: 1955-05-11
Abstract: 778,742. Reciprocating pumps. COMMERCIAL SHEARING & STAMPING, CO. May 11. 1955 [May 21, 1954], No. 13633/55. Class 102(1) A pump comprises coaxial cylinders 12, 13 having connected pistons 15, 16. The cylinder space above the piston 15 is connected to pressure bottles 18 containing nitrogen and the cylinder space below is releasably connected to a hydraulic pressure pump through a control valve. The space below the piston 16 is connected through non-return valves to a main water supply and to a discharge line. The control valve may be electrically actuated and by means of limit switches traps the liquid below the piston 15 at the end of the up stroke and connects the pressure pump to a reservoir. The trapped liquid is released by a foot actuated switch. The upper cylinder 12 is pivoted in a yoke at the top of a frame.
Patent GB-297670-A (GB)
Title: An improved adjusting device for the driving systems of induction measuring instruments
IPC: G01R11/36
Filed: 1928-05-09
Abstract: 297,670. Landis et Gyr Soc. Anon. Sept. 24, 1927, [Convention date]. Induction motor meters.-The position of the driving magnet cores of induction measuring instruments wherein the cores are in direct connection is adjusted by sliding the cores in direct mechanical contact with each other along their planes of separation. In one arrangement, Fig. 1, the voltage magnet core 6 is secured by countersunk bolts 3, passing through angle-pieces 4, to a flanged carrier frame 1 mounted in the meter casing. To the same limb of the angle-pieces are secured by screws 11, the ferro-magnetic connections 9 between the current and voltage cores, the connection providing surface joints 10 between the cores. In the other limbs 12 of the angle-pieces are mounted differential screws 15 having fine and coarse threads 13, 14 and also set-screws 16 which connect the carrier frame 1 in such a manner that by adjusting the screws 15, the voltage and current magnets can be given a small relative movement without altering the magnetic path at 10. In another arrangement, Fig. 4, the adjustment is obtained by eccentrics 32 mounted in slots 33 in the current magnet core 29. The eccentrics are turned by screws 31 in plates 30 secured to the voltage core extension 27. Aligned recesses in the core members may be provided so that a relative twist applied between the two meeting surfaces provides a sufficient adjustment.
Patent GB-1120328-A (GB)
Title: Spacer for a cable clamp connector
IPC: H01R4/62
Filed: 1967-03-23
Abstract: 1,120,328. Cable clamp spacer. G. REEVES. 23 March, 1967 [23 March, 1966], No. 13682/67. Heading H2E. In a cable connecting clamp, of the split bolt type, in which the cable conductors 19, 20 are clamped in parallel against an electrically conducting spacer 25 sandwiched between them, the spacer is formed from hollow tubing so that when it is compressed it will deform to suit the configuration of the conductors. The end sections 25, 26 of the spacer are folded transversely and crimped, and project outwardly beyond the tubular portion 28 to prevent the spacer sliding out of the shank 12. The spacer may be filled with a corrosion-inhibitory compound which is forced out of holes 32 when the deformation takes place, and covers the contact surfaces.
Patent GB-401355-A (GB)
Title: Improvements in or relating to light sources for use in television and similar systems
IPC: H04N5/66
Filed: 1932-05-12
Abstract: 401,355. Television receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, APPLETON, W. A., 189, Wembley Hill Road, Wembley, Middlesex, and PLAISTOWE, D. L., 8, Palmerston Road, East Sheen, Surrey. May 12, 1932, No. 13738. [Classes 40 (iii) and 40 (v).] A spark gap or arc F is energized by the rectified output of an oscillation generator 0, modulated in accordance with television or like signals. The signals are applied to the control grid of a modulating MV, and anode potential is applied to the valves 0, MV through a choke to produce modulation of the generated oscillations. The output of the oscillator is coupled to a rectifying-valve R with the arc or spark-gap in its output circuit.
Patent GB-495572-A (GB)
Title: Improved construction of airtight packages for biscuits and the like
IPC: B65D5/54
Filed: 1937-05-18
Abstract: 495,572. Cardboard boxes. FRIES, L. May 18 1937, No. 13765. [Classes 18 and 66] A cardboard container for biscuits &c. is adapted to be severed, for instance by a tear ing cord, along the line 9 so that after severance the top portion can be turned down about the line 7 as a hinge A locking tab 8 is provided to facilitate temporary re-closure.
Patent GB-565831-A (GB)
Title: Improvements in motor fuels
IPC: C10L1/02
Filed: 1941-12-10
Abstract: 565,831. Motor fuels. STANDARD OIL DEVELOPMENT CO. Dec. 10, 1941, No. 13822 /44. Convention date, Dec. 19, 1940. Divided out of 565,803. [Class 91] A motor fuel composition comprises a blend of from 5 to 10 per cent by volume of a low molecular weight hydrocarbon component, having from 3 to 5 carbon atoms per molecule, with a major proportion of' methanol. Water may be added in an amount up to 30 per cent by volume on the total blend. The hydrocarbon component may comprise paraffins, olefins, cycloalkanes, or cycloalkenes, or mixtures thereof; unsaturated constituents should preferably contain no more than one double bond. n-Pentane is specified. Other usual additives may be present in the compositions, such as an anti-knock as tetraethyl or methyl lead, a dye, thickening agent, or lubricant.
Patent GB-290232-A (GB)
IPC: B29C71/00
Filed: 1928-05-10
Abstract: 290,232. Feldm³hle Papier-und Zellstoffwerke Akt.-Ges. May 10, 1927, [Convention date]. Apparatus for making films. - For carrying out the hardening, washing, bleaching or dyeing treatments of viscose films, the latter after leaving the coagulation baths 1, 2, are passed round inclined banks of rollers g and during their passage are subjected to the action of the washing &c. liquid supplied through spray pipes h. The several alternate banks of rollers are preferably oppositely inclined. The liquids collect in troughs i arranged below the banks, and the collected liquid, after appropriate treatment, may be re-used, or the liquid collected in a trough later in the series may be supplied, as by a pump m, to a bank earlier in the series on the counter-current principle. The film is guided round the troughs by means of auxiliary rollers n, and it is finally wound on a roller f preferably frictionally driven. The film is formed by means of a pourer A co-operating with a drum B rotating in a bath 1 of coagulating liquid such as ammonium sulphate solution; after passage through the bath, it may be subjected to a further coagulation treatment in a bath 2, being carried by a second drum B. Specification 290,234 is referred to.
Patent GB-530685-A (GB)
Title: Improved method of colour photography
IPC: G03C7/407
Filed: 1939-05-10
Abstract: 530,685. Colour photography. KODAK, Ltd. (Eastman Kodak Co.). May 10, 1939, No. 13921. [Class 98 (ii)] A colour coupler is incorporated in a gelatine silver salt emulsion which is coated upon a support while maintaining the pH of the emulsion on the acid side of neutrality during such incorporation and coating. At least one later of multi-layer material may be coated in this manner, and the pH may be below 5.5 A buffering agent may be incorporated in the emulsion as described in Specification 492,162. Processing baths not intended to bring about reaction of the colour coupler are maintained on the acid side of neutrality, and colour development is effected without immersion in an alkaline liquid, for example, by causing the layer containing the colour coupler to imbibe a colour developer of acid reaction and then treating with the alkali necessary for development and coupling without immersion in liquid, as by treatment with ammonia gas. The material may have three emulsion layers sensitized to blue, red, and green, which may or may not be separated by gelatine intermediate layers. The emulsions may be silver bromide or chloride, or some silver chloride and others bromide. The two lower layers may be silver chloride and the top silver bromide. The colour developer for the latter comprises diethyl-p-phenylenediaminehydrochloride, sodium bisulphite, and potassium bromide, while in the developer for the former the bromide is replaced by a soluble chloride. A weak sodium bisulphite bath may be used to arrest development, and the silver and silver halide removed by a bath containing a ferricyanide and hypo. The treatment with ammonia to cause development to take place may be modified by treatment with a mixture of ammonia with sulphur dioxide or carbon dioxide. The film may be processed to a positive by a first development with acid amidol or acid ferrous oxalate, followed by reexposure and treatment as before. The sound 'track may be recorded in the layer containing a colour coupler giving a minus-red colour and developed in the sound track area alone by means of a coupling developer applied by a roller before any other step in the processing. Specifications 427,472, 440,032, 458,664, 458,665, 474,353, 478,933, 478,934, 478,942, 478,983, 478,984, 478,985, 478,986, 478,989, 478,990, 478,991, 493,952, 496,245, 498,874, 499,185, 500,611, 500,717, 500,793, 500,826, 503,752, 503,814, 503,823, 503,825, 503,826, 503,827, 503,939, 503,940, and 503,941 also are referred to.
Patent GB-1088472-A (GB)
Title: Improvements in or relating to the production of derivatives of nitrofuran
IPC: C07D513/04
Filed: 1965-04-01
Abstract: The invention comprises 6,7-dihydro-3-(5-nitro - 2 - furyl)imidazo[2,1 - b] - 1,3,4 - thiadiazinium and its mineral acid addition salts, and a process for their preparation comprising reacting a halomethyl 5-nitro-2-furyl ketone with 1-amino-2-imidazolidinethione in the presence of an inert solvent to form a 6,7-dihydro-3-(5-nitro - 2 - furyl)imidazo[2,1 - b] - 1,3,4, - thiadiazinium halide from which the free base may be obtained by treatment with a base.  Antimicrobial compositions comprise a compound of the invention together with a pharmaceutically acceptable carrier.  The compositions may be in the form of solutions, ointments, pastes, suspensions and dusts.
Patent GB-1310251-A (GB)
Title: Distribution of watch parts for inspection or repair
IPC: G04D1/06
Filed: 1970-03-23
Abstract: 1310251 Cabinets RENO SA 23 March 1970 [21 March 1969] 13978/70 Heading A4B [Also in Division G3] Watches for repair are collected in a cabinet 1 provided with drawers 3, each of which contains numbered compartments to receive the watches which are placed with their wrist bands around plugs 6. At a stripping station, parts of the watch are removed and placed in capsules 10, (11) Fig. 3 (not shown) which fit within the corresponding plug 6. Other parts are placed in a tube (14, 15) which fits in an aperture 12 formed in a solid corner portion 13 of the compartment. The drawers 3 are retained in the cabinet I by a rod 16.
Patent GB-1105402-A (GB)
Title: Pressing glass assemblies
IPC: B29C43/22
Filed: 1966-03-30
Abstract: 1,105,402. Safety glass laminates. PITTSBURGH PLATE GLASS CO. 30 March, 1966 [5 April, 1965], No. 14017/66. Heading B5N. [Also in Division F2] An apparatus for pressing a curved assembly comprising two matched curved glass sheets and a thermoplastic interlayer comprises a pair of roll support members 11, a pair of radially spaced parallel shafts 18 and 19 rotatably mounted between said roll support members in spaced relation to one another, a set of rings 26, 28 and 29 having resilient peripheral surfaces mounted along each shaft in closely spaced relation along its length, the diameter of the rings disposed along one of the pair of shafts decreasing in a direction from the ends of said shaft toward the centre thereof, the diameter of the rings disposed along the other of the pair of shafts increasing in a direction from the ends of said other shafts towards the centre thereof, the space between the shafts being so related to the sum of the diameters of the opposing rings so as to produce a curved line of nipping between opposed sets of rings corresponding to the curvature of a curved assembly transverse to its path of movement. The rings disposed centrally along the upper shaft 19 are preferably of cylindrical configuration whilst the outer rings 26 are frusto-conical with their diameters decreasing slightly toward the adjacent end of upper shaft 19. The rings disposed centrally along the lower shaft are cylindrical, whilst at least some of the flanking rings are frustoconical with their diameter increasing slightly to their axial ends. The prepressed assembly is preferably laminated in an autoclave.
Patent GB-608579-A (GB)
Title: Electric capacitors and dielectric for same
IPC: H01G4/258
Filed: 1944-07-21
Abstract: A condenser dielectric composition possessing high dielectric constant and low dielectric power factor, comprises titanium dioxide, a flux, and an oxide of one or more of the elements having atomic numbers between 59 and 72, with the oxide or oxides ranging from about 10 per cent to about 60 per cent by weight of the total composition, whereby the temperature-capacity coefficient may be predetermined from positive values slightly above zero, through zero to negative values.  A suitable flux may be calcium, magnesium, beryllium and aluminium silicates, as well as silica and calcium and magnesium titanates and where desirable an organic plasticizer such as starch or flour may be added.  An example of a mixture having a zero temperature coefficient of dielectric constant comprises, neodymium oxide 48.2 per cent, samarium oxide 5.3 per cent, titanium dioxide 43.0 per cent, and china clay 3.5 per cent.
Patent GB-210344-A (GB)
Title: Window cleaners
IPC: B60S1/10
Filed: 1923-05-28
Abstract: 210,344. Polk, T. B. May 28, 1923. Windows and the like, cleaning. - A power-operated device for use on motor vehicles, tramcars &c. comprises a fixed chambered piston 19 secured to tubes 16, 17 fixed by brackets 15 to the top rail 12 of the windscreen 11, a cylinder 20 carrying wipers 43 being slidably mounted on the piston and rods. A pipe 29 with valve 32 connects the tube 17 with a source of compressed air or a vacuum, and the pipe 16 is in communication with the atmosphere. Valves 23, 24 in the piston have fixed to them springs 27, 28 with which the cylinder contacts at the end of each stroke so that the valves are moved to reverse the direction of motion. A trolly-wheel 34 is mounted on the cylinder and runs on a rod 35 secured in the brackets 15 while lugs 36 extending downwardly from the cylinder have protuberances 46 engaging in recesses 47 provided in coupling members 38 pivoted to the lugs by screws 40 and pressed upon them by springs 48. Pivoted to the members 38 are arms 42 carrying pivotally the wipers 43, springs 45 serving to press the wipers upon the glass, and when the cleaner is not in use the members 38 may be turned through 90‹ so that the wipers lie parallel with the cylinder and do not obstruct the view. For tramcars the rod 35 may be dispensed with, the trolly-wheel 34 running upon the glass.
Patent GB-437818-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/24
Filed: 1934-05-10
Abstract: 437,818. Liquid-fuel burners. WALLSEND SLIPWAY & ENGINEERING CO., Ltd., Wallsend-on-Tyne, HENDERSON, H. E., and MORTON, J. A., 35, The Temple, Dale Street, Liverpool. May 10, 1934, No. 14105. [Class 75 (i)] A liquid-fuel burner comprises a tubular burner body A, a barrel B externally and internally coned at its forward end and formed at its rear end with a flange H and a threaded neck G received in a recess J and a threaded bore in the burner body A, a solid valve spindle C screwing in a threaded bore in the burner body A and having a coned forward end P projecting beyond and coacting with the forward end of the barrel B, and an adjustable extension A<1> threaded on the burner body A and formed with an aperture T surrounding the forward end of the barrel B. An oil passage E opens into an annular space O formed between the threaded bores in the burner body B and an air inlet F opens in front of the recess J. The valve spindle C may fit closely the bore of the barrel B and be formed with straight or helical fuel passages D or it may be of considerably less diameter than the bore of the barrel, helical vanes being then provided in the annular space W between the barrel and the burner body for imparting a whirling motion to the air. Specification 154,238, [Class 75 (i)], is referred to in the Provisional Specification.
Patent GB-622113-A (GB)
Title: Improved apparatus for growing crystals
IPC: C30B7/00
Filed: 1946-05-10
Abstract: An apparatus for growing crystals, Fig. 1, particularly of ammonium dihydrogen phosphate, comprises a container 8 for the nutrient solution with a rotating shaft 12, whose direction of rotation is periodically reversed, carrying supports 10 for the crystals.  The crystal may also turn about an axis to assist even flow of solution over it.  The container may be lagged and the bottom may be heated as by element 50 and by elements 44, 46 controlled through <PICT:0622113/III/1> <PICT:0622113/III/2> relay 38 by regulator 30. Extraneous crystals are bunched at the centre of the bottom by the vortex caused by rotation, and redissolved in the thin layer of unsaturated solution produced by the heating elements.  The bottom of the container may be dished to assist this bunching, Fig. 2 (not shown), and may be provided with a central inlet for the introduction of solution, which overflows at 74.  Various types of crystal support are illustrated in one of which, Fig. 7, a single large crystal bar 4, as for instance 15 inches long and 4 or more inches wide, is grown from a seed crystal 2 mounted on radial supports 10H attached to the central rotating shaft 12.  The seed crystal may be of various types. Ammonium sulphate (4 grams per litre) or ferric nitrate or phosphate or aluminium nitrate (0.001 mol. per litre) may be added to the solution of primary ammonium phosphate to affect crystal growth in specified ways, or the pH value may be varied.  The Specification as open to inspection under Sect. 91 refers also to the use of the apparatus to grow crystals such as of Rochelle salt or other tartrates, sodium chlorate or sodium bromate; to the addition of chromium, tin, or barium selenate, lithium, alkali, pyridine, trimethylamine or secondary ammonium phosphate to the solution; to methods of growing initial seed stock; to growing crystals in stages; and to the optical inspection of crystals. This subject-matter does not appear in the Specification as accepted.
Patent GB-113076-A (GB)
Title: Improvements in Handles.
Inventor: ADAMS ALBERT LANDON
IPC: B25G3/02
Filed: 1917-10-03
Abstract: 113,076. Adams, A. L. Oct. 3, 1917 Strengthened tubular handles; D-handles. - Tubular handles 10 for shovels, scoops, forks, &c. are formed with inwardly bent strengthening edges or flanges 11, 11<1> extending diametrically completely across the handle, either in V form as shown in Figs. 1 and 3, or closed together as shown in Fig. 6. The inner edges of the flanges 11, 11<1> may be bent outwardly to lie against the tube 10, or one edge may be bent over the other. One end of the tube may be split or bifurcated at 16 and a grip 18 secured therein by a rivet 17.
Patent GB-747252-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J23/28
Filed: 1952-06-06
Abstract: 747,252. Travelling-wave tubes. WESTERN ELECTRIC CO., Inc. June 6, 1952 [June 8, 1951; June 8, 1951], No. 14292/52. Class 39 (1). [Also in Group XL (b)] The delay line of a travelling - wave tube comprises a conductive cylinder 41, Fig. 1, conductive supports 44, 45 and curved interdigitated members 47, 48, an electron beam being projected along the axis of the cylinder. The beam can be annular or cylindrical; it preferably flows both inside and outside the curved members. The structure may be modified to provide two or more lines in parallel, two or more supports being symmetrically spaced about the circumference, Fig. 2 (not shown). The free ends of corresponding pairs of fingers may be connected to form rings 74, Fig. 3, which have a circumference equal to twice the length of the fingers in Fig. 1. This may be done for any even number of lines in parallel, e.g. four or six, as described with reference to Fig. 4 (not shown) provided that the circumference of the rings and the number of supports 71, 72 having projections 73 is appropriately increased, but if done for an odd number of lines the field distribution is altered. In another form (not illustrated) the device of Fig. 2 (not shown) is modified by skewing the fingers and so connecting them as to form a bifilar helix. In structures having more than two lines in parallel, this modification will produce multifilar helices. The dimensions and spacing of the parts of the delay line are discussed.
Patent GB-968509-A (GB)
Title: Reinforced rubber or plastic articles
IPC: B29C67/24
Filed: 1961-04-20
Abstract: 968,509. Coating surfaces. A. H. CROUCHER. April 13, 1962 [April 20, 1961], No. 14313/61. Heading B2B. Reinforced, flexible rubber or plastic articles of complex shape (see Figures) are made by knitting or crocheting filamentary material, e.g. cotton, nylon, "Terylene" (Registered Trade Mark), rayon or wire, to the final desired shape and coating with rubber or plastic material. The shape may be dip coated with rubber or plastic, e.g. polyvinyl chloride, stretched around a former and dipped or placed in a mould which is then filled with rubber or plastic and cured, gelled or hardened.
Patent GB-1195475-A (GB)
Title: Improvements in Cantilever Storage Rack
Inventor: ALTRUI THOMAS NICHOLAS D
IPC: A47B57/46
Filed: 1968-03-25
Abstract: 1,195,475. Racks. T. N. D'ALTRUI. 25 March, 1968, No. 14332/68. Heading A4B. A rack comprises spaced posts 11 to which cantilevered pairs of beams 12 are secured by bolts 17 each selectively engaged in one of a plurality of apertures 18 in the posts 11 and includes pairs of brackets 13 each having a web 20, oppositely directed horizontal flanges 21, 22, and oppositely directed vertical flanges 23, 24, the web 20 having an aperture to receive the bolt 17 when positioned between a beam 12 and a side face 15 or 16 of a post 11. In the operative condition the beam 12 rests on an horizontal flange 21 (or 22) and a vertical flange 24 (or 23) bears on the front face 26 of a post 11. Pairs of beams 12 are interconnected at their free ends by a bolt 19 and each such pair is free to pivot upwardly to 12<SP>1</SP> about the post mounting bolt 17 when they are inadvertently struck from below. Beams 12 may be cantilevered both forwardly and rearwardly from the posts 11.