baber/WOPTO huggingface dataset:
Patent GB-1220763-A (GB)
Title: P.v.c. infilled fencing posts
Inventor: BROWN ALBERT NORMAN
IPC: E04H17/20
Filed: 1969-07-16
Abstract: 1,220,763. Fencing posts. A. N. BROWN. 16 July, 1969, No. 35795/69. Heading E1B. A plastics coated reinforced concrete fencing post comprising a self supporting P.V.C. tube 1, a P.V.C. end cap which will be at the top in use, a reinforcement network of rod 3 and spacers 4, is moulded by feeding concrete 10 from a hopper 7 through an orifice 8 into the tube, the hopper and a table 7 upon which the post is supported being individually vibratable to vibrate the post during moulding. Greased rods 5 are removed after moulding but before the concrete sets to provide bolt holes. '
Patent GB-1534627-A (GB)
Title: Transmission arrangement having an adjustable network
IPC: H04L25/03
Filed: 1977-08-26
Abstract: 1534627 Line equalizers PHILIPS' GLOEILAMPENFABRIEKEN NV 26 Aug 1977 [30 Aug 1976] 35934/77 Heading H4R An adjustable network 9 in a line transmission arrangement (e.g. the adjustable part of a line length and temperature equalizer having fixed characteristic portions 7, 8) includes a plurality of channels 17, 18, 19 between input 20 and output 21 each having a respective transfer function proportional to a respective term in the expansion of the function exp[Kf(w)] in powers of Kf(w) to as many terms as there are channels, where K is a continuously variable function of frequency w, in order to simulate an overall transfer function equal to Cexp [Kf(w)] where C is a constant. A shown the current dividing ration a (where K= aA/#w N  and A is the desired signal amplitude at the Nyquist frequency w N ) is controlled according to the difference between ideal and detected output amplitude, and Z 0  is resistive, Z 1  a plurality of R L  networks and Z 2  inductive.
Patent GB-1011056-A (GB)
Title: Improvements in or relating to the degasification of metal
IPC: B22D18/06
Filed: 1961-10-06
Abstract: Metal is melted in a furnace without the application of vacuum and is tapped into a launder which conveys it directly to a receiver mounted on a vacuum vessel, the latter either containing or constituting a ladle, and the capacity of the latter vessel being substantially greater than that of the receiver.  The metal is subjected to a stream degassing treatment during its passage from the receiver into the ladle, and is then cast, either in air or in a <PICT:1011056/C6-C7/1> <PICT:1011056/C6-C7/2> protective gas. Alloying or deoxidizing additions such as Ti, Nb, B or Al may be made to the metal while in the vacuum chamber; desulphurization may also be effected by the addition of suitable agents such as a mixture of lime and fluorspar to the ladle before or during tapping.  The line connecting the vacuum vessel to the pump may be flexible and may be equipped with cooling sprays.  In the embodiment of Fig. 1, the vacuum vessel consists of a ladle 1 having cover 2 fitted with receiver 5, means 11 for making additions and television camera 12. Metal is discharged directly from the furnace through launder 16 to receiver 5, slag being removed through overflow launder 14.  In the modification shown in Fig. 5, ladle 46 is located within vacuum vessel 41 having cover 2 hinged at 60.  Receiver 47 is provided with bracket 49 carrying guiding means 50 for launder 51, which is connected to tapping spout 52 by links 53.
Patent GB-360864-A (GB)
Abstract: 360,864. Calculating-apparatus. SVENSSON, W. A., Saltsj÷.Storõngen, Stockholm. July 9, 1930, No. 23601/31. Divided on 360,842. Drawings to Specification. [Class 106 (i).] A machine for use in entering and keeping accounts comprises at least four totalizing counters adapted to be set for addition or for subtraction and arranged in groups for the factors assets and liabilities, and profit and loss, one counter in each group being actuated simultaneously. The description is identical with that in Specification 360,842 but the claims differ,
Patent GB-411194-A (GB)
Title: Improvements in and relating to electric switch and fuse gear more particularly for use with overhead lines
IPC: H02B5/01
Filed: 1932-12-21
Abstract: 411,194. Air-break switches. MACKAY, T. W., Pentland, Barton Road, Torquay, and KNOWLES, H. A., Lochnagar, Torquay Road, Kingskerswell, Newton Abbot, both in Devon. Dec. 21, 1932, No. 36157. [Class 38 (v).] Bases, earthing parts of.- An air-break switch and fuse equipment, particularly for overhead lines, comprises a number of blades or arms, each surrounded by an insulating sleeve secured to a rotatable shaft and provided with earthed protecting screens which carry contacts with which engage the blades or arms in the open position. With this arrangement, persons working on the equipment can be protected against contact with live conductors when the switch is open. As applied to a simple pole, each blade A with insulating shroud J has a metal collar B engaging in a porcelain sleeve C to which the blade is secured by a nut and bolt D and collar E. The electrical connection to the blade is made by means of a lug F. The sleeve C is clamped by means of a split clamp G to the rotatable operating shaft H, the arrangement imparting a wiping action to the contacts. L, K are earthed screens, the latter carrying the earthing contacts P for the blades A, and Q are fuses mounted on insulators R and connected to a transformer or other apparatus, M being the incoming line terminals. The invention is also shown applied to an H pole, Figs. 4, 5, (not shown).
Patent GB-749663-A (GB)
Title: Improvements in and relating to electrical switches for low power circuits
Inventor: WALTON GORDON HERBERT FRANCIS
IPC: H01H5/04
Filed: 1953-12-30
Abstract: 749,663. Snap action switches. DIAMOND H SWITCHES, Ltd. Dec. 8, 1954 [Dec. 30, 1953], No. 36212/53. Class 38(5) In an electric switch suitable for use in low power apparatus a lever 1 which is depressed to disengage a spring-loaded bridging contact 8 from fixed contacts 10 moves forward in jerks owing to frictional resistance. In the form shown a semicircular end part 2 pivots in a V-block 3, the engagement of the surfaces being frictional and the coefficients of static and sliding friction being sufficiently different to cause the jerky movement. A bowed spring 15 mounted on the lever is acted upon by an operating plunger 18. When the plunger is slowly depressed the ends of the spring provide a moment tending to turn the lever anticlockwise, and this moment is opposed by clockwise moments due to a spring 9 and friction between 2 and 3. With the lever stationary the spring is gradually strained thereby increasing the anticlockwise moment until the static frictional resistance is overcome and the lever moves rapidly downwards. The spring is thereby allowed to recover and the action is repeated so that motion takes place in a series of jerks. A similar procedure takes place when the switch is closed. The fixed contacts 10 are mounted on bimetallic strips 11 which bend towards the "closed" position if a spark occurs when the contacts are near, thereby helping to make contact. In a modification the lever is in the form of a flat plate mounted edgewise on a normal pivot and the frictional resistance is provided by spring loaded pads acting on its sides.
Patent GB-1055146-A (GB)
Title: Apparatus for closing and folding the ends of filled packages
IPC: B65B7/08
Filed: 1963-09-16
Abstract: 1,055,146. Packaging. SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT. Sept. 16, 1963 [Sept. 19, 1962], No. 36327/63. Heading B8C. An apparatus for folding and sealing the ends of an open-ended tubular wrapping of thermoplastic material which project beyond the contents, comprises preliminary folding tools 3, 4, which fold the wrapping material over a portion of each end of the contents and thereby impart to each projecting end a form 1 which diverges towards the adjacent open end of the wrapping and has an elliptical cross-section, Fig. 3 (not shown). The succeeding folding and welding operations include forming partially welded transverse seams 1b Figs. 5, 6 (not shown), by means of jaws 6 and co-operating spreading devices 5, folding the seams 1b against the ends of the package, Figs. 7, 8 (not shown), and then setting upright the portions of the seams which overlap the sides of the package and effecting final welding thereof by means of a heated punch 9 and co-operating levers 10, Figs. 9, 10 (not shown). Finally the upright portions are folded towards one another by levers 11, Fig. 11 (not shown), and are glued or welded to the ends of the package, the folding tools 3 then being removed. Preliminary folding tools for use with rectangular or square cross-sectioned packages are also described.
Patent GB-1018797-A (GB)
Title: Dyeing polyacrylonitrile
IPC: C09B19/00
Filed: 1962-09-25
Abstract: Cationic dyes are prepared by reacting 4-nitrosodiphenylamine with a m-aminophenol or an N-substituted m-aminophenol in the presence of a mineral acid, optionally treating the product with a metal salt, e.g. a zinc salt. Among specific dyes described are those produced by reacting 4-nitroso-diphenyl amine with N,N-diethyl-m-amino-phenol and treating the product with zinc sulphate; 4-nitroso-diphenylamine with N-b -cyanoethyl-m-aminophenol and N-acetyl-m-aminophenol.  The dyes colour polyacrylonitrile blue.ALSO:Polyacrylonitrile textile materials are dyed with a cationic dye prepared by reacting 4-nitrosodiphenylamine with a m-aminophenol or an N-substituted m-aminophenol in the presence of a mineral acid.  The acid may be hydrochloric or sulphuric acid and the reaction product may be treated with a metal salt e.g. a zinc salt.  The dyes are applied from aqueous solutions.  The dyes yield blue shades on polyacrylonitrile and as they do not dye wool are useful for dyeing union goods.  In an example polyacrylonitrile is dyed with the product obtained by reacting zinc sulphate with the dye obtained by reacting N, N-diethyl-m-aminophenol with 4-nitrosodiphenylamine.  The dye is used in an aqueous bath containing ethylene glycol monomethyl ether, nonionic surface active agent and formic acid.
Patent GB-950716-A (GB)
Title: Improvements in or relating to aerial arrays
IPC: H01Q1/52
Filed: 1962-09-27
Abstract: 950,716. Pylons. SIEMENS & HALSKE A.G. Sept. 27, 1962 [Sept. 27, 1961], No. 36666/62. Heading E1B. [Also in Division H4] The invention relates to the positioning of aerial elements (6, 7, 8, 9) and (14, 15, 16, 17), (see Division H4) on a latticed metal pylon 1 comprising corner uprights 2, 3, 4, 5 stiffened at vertical intervals by horizontal tie bars 21, 22 (on or adjacent to which the radiating elements are mounted) and further stiffened by side struts 23, 24, 25, 26 identically arranged as shown on each side of the pylon.
Patent GB-842829-A (GB)
Title: Quaternary amide-zinc pentachlorophenolate salts
IPC: C07C233/00
Filed: 1958-11-14
Abstract: The invention comprises a reaction product of a quaternary ammonium salt of the formula: <FORM:0842829/IV(b)/1> in which R is C7,21 alkyl, R1 and R11 ar C1-3 alkyl, R111 is alkyl, aralkyl or hydroxyalkyl, X is an organic or inorganic anion (e.g. chloride) and n is 2, 3 or 4, with zinc pentachlorophenolate in a molecular ratio of at least 2,5-1 respectively.  The components of the reaction product are preferably combined at elevated temperatures, and the zinc pentachlorophenolate component may be formed in situ by reaction between zinc oxide and pentachlorophenol.ALSO:A soft hand is imparted to textile materials such as cotton fabric by impregnating them with an aqueous or aqueous acetic acid solution of a reaction product of a quaternary ammonium salt of the formula:  <FORM:0842829/IV (c)/1> in which R is C7-21 alkyl, R1 and R11 are C1-3 alkyl, R111 is alkyl, aralkyl or hydroxyalkyl, X is an organic or inorganic anion and n is 2, 3 or 4, with zinc pentachlorophenolate in a molecular ratio of at least 2,5 : 1 respectively.ALSO:A pesticidal composition giving protection against termites and fungal attack comprises an aqueous or aqueous acetic acid solution of a reaction product of a quaternary ammonium salt of the formula:  <FORM:0842829/VI/1> in which R is C7-21 alkyl, R1 and R11 are C1-3 alkyl, R111 is alkyl, aralkyl or hydroxyalkyl, X is an organic or inorganic anion and n is 2, 3 or 4, with zinc pentachlorophenolate in a molecular ratio of at least 2,5:1 respectively.
Patent GB-323890-A (GB)
Title: Improvements in and relating to electric drive arrangements for motor vehicles
IPC: B60L15/04
Filed: 1928-12-13
Abstract: 323,890. Sousedik, J. Dec. 13, 1928. Controlling motors by varying terminal voltage; regenerative systems.-An electric traction motor A fed by an accumulator D has a constantly excited shunt field-winding B and another field-winding C which is either a series winding as shown in Fig. 2, or is arranged to have a series characteristic from a separate exciter as shown in Fig. 1. The field-winding C is provided with means for keeping the direction of current flow unchanged when the motor regenerates to the accumulators, which means may be an electromagnetic change-over switch SMN as shown in Fig. 2, or a non-reversible motor H driving the exciter G as shown in Fig. 1.
Patent GB-1439030-A (GB)
Title: Plastics bearing
IPC: F16C33/20
Filed: 1973-08-03
Abstract: 1439030 Bearings S M SHOBERT 3 Aug 1973 36969/73 Heading F2A A bearing member 10 has a surface 17 of a low friction fabric with a hard backing 12 of plastics material. The bearing surface is composed of cords 15, the strands 36 of which are of low friction fibrous material including a fluorocarbon, each cord having an irregular outer surface containing raised and depressed portions, the strands being woven together so as to locate the fibres in place, and the cords being interlaced into a woven fabric which thereby anchors the fibres against displacement. The fabric is embedded in the plastics material so that the cords and fibres are mechanically secured therein, with the fibres undulating throughout the length of the cords. Portions of the fibres are exposed through the plastics material to define the bearing surface, and other portions are fully embedded in the material which is not chemically or adhesively bonded to the fibres or cords. The low friction material is preferably PTFE and the backing may be a conventional glass-reinforced plastics. The bearing member may be made by forming a braided layer of low friction fibres on a mandrel, and then forming around these fibres a thicker braided layer of glass threads. The mandrel is then submerged in a bath of liquid polyester or epoxy resin so as to impregnate the threads and cords. On removal from the bath, the mandrel and impregnated fabric are placed in a heated curing mould. When the resin has hardened the mandrel is removed. If desired particles of PTFE may be added to the resin to improve the lubricity of the bearing. Strands of cotton may be included in the cords forming the bearing surface which improve the bonding between the fabric forming the bearing surface and the plastics material.
Patent GB-998390-A (GB)
Title: Improvements in or relating to ovens
Inventor: SMITH PETER HAROLD
IPC: H05B6/80
Filed: 1962-10-01
Abstract: 998,390. R.F. couplings; microwave ovens. J. LYONS & CO. Ltd. Oct. 18, 1963 [Oct. 1, 1962], No. 37065/62. Headings H4A and H5H. Relates to a microwave oven wherein R.F. energy is introduced into compartment 10 via a slot 26, food to be cooked being placed on a platform 32 and a baffle plate 28 being interposed between slot 26 and platform 32. According to the invention the baffle-plate is so positioned and dimensioned that the oven with its contents provides an impedance match to magnetron 44 and that a substantially uniform electromagnetic field ensues within the compartment. Waveguide 22 is coupled to aperture 26 by an aligned slot 24, the latter being disposed at a point corresponding to maximum field intensity within the waveguide. Piston 92 is adjusted with an average cooking load to give a voltage standing-wave ratio of unity within the waveguide. Sheet metal baffle-plate 28 is suspended from the compartment by dielectric spacers 30, the edges of the baffle-plate being spaced from the side and end walls of compartment 10 by some quarter of a wavelength at the operating frequency. Platform 32 is rotatably mounted on bearings on a supporting plate 36 itself supported by a pair of rods 38 extending through the rear wall of the compartment. Waveguide 22 is domed directly opposite to magnetron 44, Fig. 5, to afford broad-band coupling which is substantially insensitive to variations in load impedance which may ensue for different kinds of food and for different stages of the cooking process. An air stream from fan 50, Fig. 1, flows through waveguide apertures 54, Fig. 5, along the waveguide and into the oven through the slots 24, 26, Fig. 2, the air being allowed to escape from compartment 10 through an apertured screen 60 to carry away unwanted vapours generated during cooking. A pivoting arrangement for plate 36, Fig. 2, is described, Fig. 3 (not shown), whereby a micro-switch 76 disconnects the supply to the magnetron when no food is in the oven. Arrangements are included to inhibit electromagnetic energy leakage from compartment 10, Fig. 4 (not shown). Exemplary dimensions are quoted.
Patent GB-1470523-A (GB)
Title: Liquid crystal colour display device
IPC: G02F1/1347
Filed: 1974-08-02
Abstract: 1470523 Controlling light DEFENCE SECRETARY OF STATE FOR 2 Aug 1974 [7 Aug 1973] 37451/73 Heading G2F In a modification of the devices generally described in Specification 1469638 the dispersive birefringent layer is composite and such as to provide a colour pattern on projection of light along the optical path, the colours of the pattern changing as the voltage applied to the liquid crystal cell is altered. The composite layer may comprise a number of coplanar pieces of material, each of the same thickness, with various shapes and optical axis directions. Alternatively, or in addition, the pieces may be stacked and may have different or variable thicknesses. The pattern may be abstract, or comprise alphanumeric symbols, or be arranged to simulate animation. The electrodes of the liquid crystal cell may also be etched, and the polarizers may have areas of different polarization direction and may be shaped. A coloured filter may be provided for modifying or obcuring parts of the pattern. The voltage applied to the cell may be produced in response to a second e.g. from a vocal or instrumental group, or a recording, and the varying pattern projected or otherwise reviewed. The device may alternatively be incorporated at the base of a fibre optic lamp.
Patent GB-523157-A (GB)
Title: Facsimile recorder
IPC: H04N1/14
Filed: 1938-12-23
Abstract: 523,157. Paper for telegraphic recording instruments. FINCH, W. G. H., and FINCH TELECOMMUNICATIONS LABORATORIES, Inc. Dec. 23, 1938, No. 37495. [Class 96] [Also in Group XL] Paper for a facsimile recorder consists of a dry sheet which has first been impregnated with carbon e.g. in the pulp during manufacture. One side is coated with a white metallic oxide, e.g., .titanium oxide, suspended in a binder such as a lacquer of nitrocellulose, cellulose ether, dextrin or casein. The oxide makes this side of the sheet white and is discoloured by the passage of current. Aluminium powder and metallic salts, e.g., cadmium iodide, potassium iodide, lithium iodide, nickel chloride and iron chloride may be added.
Patent GB-1161986-A (GB)
Title: Adjustable D.C. Voltage Converter
Inventor: BIAL WOLFGANG
IPC: H02M3/18
Filed: 1966-08-22
Abstract: 1,161,986. Cyclical chopping circuits; control of D.C. motors. W. BIAL. 21 Aug., 1967 [22 Aug., 1966], No. 37508/66. Headings H2H and H2J. A circuit supplying a voltage variable between upper and lower values comprises a multiway reciprocating or rotating switch having at least two contacts a, c connected to a supply, a common contact k being connected through an inductor L1 to the load and at least one non- linear element to provide a conductive path between the supply and load when the contact k is in non-engagement with one contact, a, c. The relative " dwell " periods on the contacts a, c determine the average voltage. A number of alternative arrangements are described in the Specification. The inductor L1 may be eliminated if the self-inductance of the load is sufficient. The switch should be of the break before make type, but a make before break switch may be employed (see Fig. 4, not shown). The positions of the supply and load may be interchanged which is stated to give an output voltage higher than that of the supply. The load may be an electric motor. The switch may comprise semi-conductor switches connected in a suitable configuration.
Patent GB-829767-A (GB)
Title: Improvements relating to manual electric arc welding
Inventor: BAYLES JOHN WALLIS
IPC: H02K23/42
Filed: 1954-12-31
Abstract: 829,767. Supply systems for welding arcs; exciting D.C. generators. REYROLLE & CO. Ltd., A. March 29, 1956 [Dec. 31, 1954], No. 37757/54. Classes 35 and 38 (4). Apparatus for manual electric arcwelding with a fixed electrode comprises a direct current generator so constructed that its output voltagewelding current characteristic has a gradient which is negative with respect to the gradient of the voltagecurrent characteristic of the welding arc, but which is not more negative than a gradient of one-twentieth of a volt per ampere. Such a " flat " characteristic is shown at 20 in Fig. 2, the angle of intersection between the curve 20 and the substantially level arc characteristics 11, 12, 13 being very small. Thus a small increase of arc length and concomitant arc voltage results in a large decrease in arc current which tends to produce a self-stabilizing effect when welding. A direct current generator having a voltage current characteristic as shown by curve 20 in Fig. 2 is a twopole compound machine having a twin north pole 28A, 28B and a twin south pole 30A, 30B (see Fig. 3). Each of the four pole parts is provided with a series connected compounding coil 32, a shunt coil 33 and a series connected compensating coil 34. The excitations produced by these coils are in the same direction on the pole parts 28B, 30A but on the pole parts 28A, 30B, the excitation of the compensating coils 34-which compensate for armature reaction indicated by 35-is opposite to the excitation of the other coils on the limbs. Serially connected interpoles may also be provided and tappings may be provided to adjust the level of compounding. Specification 829,768 is referred to.
Patent GB-512602-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K5/06
Filed: 1938-02-09
Abstract: 512,602. Fountain pens. TRIGGS, W. W. (Montblanc-Simplo Ges.). Feb. 9, 1938, No. 37768. Divided out of 502,381. [Class 146 (iii)] In a fountain pen of the kind in which a suction piston is moved by means of a number of screw-threaded telescopic sleeves, a guide sleeve 6 is provided for axial but not rotatable displacement in the reservoir, a longitudinal slot 5 in the sleeve being engaged by guiding-means such as a pin 9 in the rear end of the reservoir. The pin 9 may be embedded in the material of the barrel or be covered by a metal ring inserted in a groove in the barrel; alternatively, it may be formed as a projection on a ring. The piston, to which a cork packing is secured against rotation is attached to a sleeve 3 as by beading, a pin 4 on the sleeves engaging a longitudinal slot 5<1> in'the sleeve 6 to prevent rotation of the piston. The rear end of the sleeve 3 is formed with an internal projection having an incision adapted to engage the helical thread impressed in a sleeve 13; the end of the thread is so shaped as to prevent disconnection. The sleeve 13 is also provided with an internal projection adapted to engage the helical thread on a rod 17 secured to a head 22 rotatable on the end of the barrel, disconnection of the sleeve and rod being prevented by a washer 19. The end of the head and of the rod 17 may be formed with grooves to facilitate the escape of air from behind the piston. The telescoping parts are formed of metal protected from corrosion by galvanizing or coating with wax. U.S.A. Specification 1,903,022 is referred to.