baber/WOPTO huggingface dataset:
Patent GB-608962-A (GB)
Title: Improvements relating to the protection of electrical apparatus against transient over-voltage
IPC: H01B17/46
Filed: 1945-09-14
Abstract: 608,962. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., and HOLBROOK, H. S. Sept. 14, 1945, No. 23753. [Class 38 (iv)]  Transient over-voltage protection for apparatus connected to a conductor 2 carried by a bushing or other insulator 1 is provided by series-connected spark-gaps A, B, the intermediate electrodes 4, 5 of which are carried by the insulator and connected to a stress equalizing tapping on a resistance potential divider connected between the conductor 2 and earth 3 and which may be constituted by a semi-conducting glaze on the insulator. Under impulse conditions the stress distribution between the gaps is disturbed due to capacity between the intermediate electrodes and the conductor or earth, so that speedy breakdown of the gaps is ensured. This capacity may be increased by a metallized coating or metal collar 7 on the insulator and connected to the intermediate electrodes. In the case of a post-type insulator, the collar 7 may co-operate with a portion of the conductor 2 or earthed part 3 extending into a closed bore in the insulator.
Patent GB-1437474-A (GB)
Title: Device for temperature compensating a gas meter
IPC: G01F15/06
Filed: 1973-05-21
Abstract: 1437474 Gas meters COMTEURS SCHLUMBERGER 21 May 1973 [19 May 1972] 24026/73 Heading G1R To connect, for temperature variations, the indications of a gas meter having an output shaft 1 whose speed is proportional to the volume flowrate of the gas, and thus to convert the meter to read mass or calorific value flow-rate, a driving member is provided to be driven by the shaft 1 and to drive with slip a driven member, one of the two members including at least one first permanent magnet 23 and the other of the members including a non-ferromagnetic metallic body of revolution such as a disc 24 separate from but in the field of the magnet 23, an eddy-current brake comprising at least one further permanent magnet 27, 27' acting directly on the disc 24, Fig. 3, (not shown) or on another non-ferromagnetic metallic disc 26 mounted to rotate with the disc 24 (as shown in Fig. 2), the temperature coefficients of resistivity of the or each disc 24, 26 and/or the temperature coefficients of the magneto-motive force of the magnets 23, 27, 27' being chosen to produce a slip such that the ratio of the rotary speed of the driven member, e.g. disc 24, to the rotary speed of the shaft 1 is inversely proportional to the absolute temperature of the gas being metered. The eddy-current brake and the magnet 23 and disc 24 are at the same temperature as the metered gas, the gas entering a housing for the meter via an orifice 40. Various ways of achieving the desired inverse proportionality are described including the selection of materials such as aluminium, copper or zinc for the disc 24 and an aluminium or beryllium bronze for the disc 26, and the equipping of the magnets 23, 27, 27' with thermo-magnetic shunts, e.g. of cupro-nickels or ferro-nickels. Alternatively the magnets can be made of a material such that they have a zero temperature coefficient of magneto-motive force. As shown rotation of the disc 24 drives a shaft 25 which in turn drives a gear train 15 and totalizing clock mechanism 9. A soft iron crown 28 may be provided as shown to channel the lines of force from the magnet 23.
Patent GB-1136149-A (GB)
Title: Improvements in or relating to the manufacture of insulated electric conductors
IPC: H01B13/16
Filed: 1966-05-31
Abstract: 1,136,149. Foam coated electric conductors. SUMITOMO ELECTRIC INDUSTRIES Ltd. 31 May, 1966 [1 June, 1965 (2)], No. 24196/66. Heading B2K. A foamed plastics insulated electric conductor is produced by coating a conductor e.g. copper wire, with a solution of crystalline polyethylene or polypropylene, dipping the coated conductor in warm water having a temperature of 50C or higher, drying and subsequently heating to produce closed cells in the coating. After the dipping in warm water, the coated conductor may be dipped in a liquid which is compatible with the solvent used for the solution of polyethylene or polypropylene e.g. n-propanol at 50C. or higher, or warm air, which may have a temperature of 35C. or higher, may be blown on to the surface of the coated conductor, prior to the drying and heating to produce closed cells in the coating.
Patent GB-1015462-A (GB)
Title: Improvements in or relating to hydraulic driving devices
IPC: F15B15/12
Filed: 1962-06-25
Abstract: 1,015,462. Oscillatory vane actuators. MAC GREGOR-CAMARAIN. June 25, 1962 [May 29, 1962], No. 24302/62. Heading F1F. In an oscillatory vane actuator, Figs. 2 and 4 (Fig. 2 not forming part of the invention), comprising a cylindrical rotary member 2 supported in bearings 5 at either end of a stationary housing 1 in which the member is alternately rotated in opposite directions by pressure fluid introduced into chambers 13 to 16 separated from each other by partition members 9, 11 mounted respectively on the member 2 and the housing 1, leakage of fluid from one chamber to another is prevented by flexible packings 23, 24, each packing being in the form of a strip located in a longitudinal groove in a peripheral surface of each of the partition members, which peripheral surface is in movable contact with the housing or the rotary member, the strip being of mouldable material and being provided with sharp corners for registering with the edges of sharp edged shoulders formed at each end portion of the housing (between the latter and the bearing 5), and annular gaskets 31 being provided each having one face in sealing contact with one of the bearings 5, a second face in sealing and sliding contact with the rotary member 2 and a third face in sealing contact with the strip. The member 2 has a splined portion 8 for driving a device. The chambers 13-16 communicate in pairs through passages 17, 18 in the member 2 and are alternately supplied with hydraulic fluid through ports 19, 20 in the housing. Each partition member is provided along its entire periphery with at least one groove into which the packing strip, which may be of rubber or synthetic material, is located. The gasket 31 prevents leakage from taking place radially and is in the form of a metallic ring, Fig. 6, having in cross-section the shape of an isosceles triangle and formed at intervals with recesses opening on its faces 31b, 31c and filled with rubber or plastic. See Fig. 7, flexible discontinuous strips 34 are mounted on the partition members and radial sealing is obtained by an annular gasket of metal or alloy having a thick portion 35a tightly fitted in a groove in the member 2 and a thinner cylindrical portion 35b engaging between the ends of the strips 34 and a toroidal ring 37 located in a groove in the bearing 5.
Patent GB-1195477-A (GB)
Title: Improvements in and relating to Analog-to-Digital Converters
IPC: H03M1/00
Filed: 1968-05-22
Abstract: 1,195,477. Analogue/digital counters. WESTON INDUSTRIES Inc. 22 May, 1968 [1 June 1967], No. 24352/68. Heading G4H. In a dual ramp analogue/digital converter the input signal V x  (Fig. 1) is integrated for a time fixed by the count of a predetermined number of clock pulses in a counter 36, the counter then enabling a gate 22 to pass a reference signal-V A  of opposite polarity to the integrator until the integrator reaches a datum level, detected by detector 25 controlling via a divider 30 the counter 39 so that clock pulses are accumulated in the counter until at least two output signals from the detector have been received . In the embodiment described the sawtooth output H of the integrator is fed to detector 25 enabled by the output G of a binary divider 40 receiving a signal from counter 36 each time it reaches a predetermined count. The detector output I terminates when the input H reaches the datum level, the width modulated pulses I being fed to the divider 30 the output J from which resets flip-flop 31 initially set by a source 32. This results in gate 33 being closed to terminate the supply of pulses to binary coded decimal counter 36. The count is displayed in decimal form by gas tubes. An offset current I B  may be fed to the integrator amplifier to prevent the detector 25 being falsely triggered by negative voltage drift, noise signals or through reversal of input polarity. To prevent amplifier 14 in the integrator 13 being saturated by the continuous application of a small positive voltage across input 10, a Zener diode is included in the negative feedback circuit of the amplifier.
Patent GB-240840-A (GB)
Title: Improved process for the treatment of condensation products of carbamide or its derivatives with formaldehyde
IPC: C08G12/12
Filed: 1925-09-30
Abstract: Condensation products of urea or its derivatives with formaldehyde, in either the semi-solid intermediate form or in the final hardened form, are converted into the sol state by mechanical or chemical means.  To effect the conversion mechanically, the products are broken up and treated in a colloid mill or similar high-speed apparatus in the presence of water or other dispersive means.  By chemical means the products are heated with formaldehyde, mineral acids, or acid-forming substances, such as ammonium salts of strong acids, esters, acid chlorides, and acid salts.  The process is particularly useful for the conversion of powdered final material, which may be the waste arising from the machining of the material, into homogeneous masses.  When acids are employed as solvent, it is necessary, for the industrial application of the products, to remove the acid. The hard product is boiled, for instance, with 10 per cent hydrochloric, nitric or sulphuric acid, and yields a solution, which in cooling throws down a bulky white precipitate, and this, after drying, can be brought into the sol state by mechanical dispersion or with the aid of formaldehyde.  The solutions obtained in any of the above ways may be used for varnishes and impregnating means, or converted into solid masses by heating.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of the starting material, in a state of colloidal or coarse dispersion, with insufficient quantities of the solvent to effect dissolution, and submitting the mixture, with or without the addition of swelling substances, to heat and pressure, thereby producing homogeneous masses.  As swelling substances, the viscous initial condensation product is of value. The powder obtained on cooling the acid solutions, too, may be made into formed pieces by heat and pressure, or it may be employed as a filler for the liquid urea-aldehyde products or for rubber, phenol-formaldehyde condensation products and natural resins.  The process of the invention can be used for giving a high polish to the final hardened products by dipping them into a solvent such as an acid, followed if desired by exposure to steam. Plates of the hardened product may be etched by tracing the patterns in a layer of resin on the surface and dipping the plate into a weak acid solution or exposing it to hot acid vapours.  In addition, the process may be used for combining individual pieces of the hardened materials by placing some of the hot solvent at the joint and evaporating off the solvent.  Finally, formaldehyde is given only by way of example of aldehydes that may be condensed with urea or its derivatives in the composition of the starting materials.  This subject-matter does not appear in the Specification as accepted.
Patent GB-510925-A (GB)
Title: Supporting band for curtains, hangings, or the like
IPC: A47H13/16
Filed: 1938-08-18
Abstract: 510,925. Woven fabrics. KUSTER, W. Aug. 18, 1938, No. 24373. [Class 142 (iv)] [Also in Group XIV] A curtain heading tape formed with straps or loops d forming insertion openings g for the limbs h of runners provided with rollers, has a drawcord b worked into the tape and the straps so that it crosses each opening g at two points flying between the ends of the strap thus reducing the area of the opening and causing the runner limb to be gripped when the tape is pleated. The cord b passes to the rear of the tape a at the ends of the straps b, through the tape and straps at f and several 'times through the strap between the points f. The U-shaped runner when passed through the opening g forces the cord into the position shown in dotted lines in Fig. 4 and on pleating, the tape takes up the form shown in Fig. 5 preventing endwise movement of the runners. The straps are arranged at the upper part of the tape and a second drawcord is so threaded in the lower part of the tape that this part pleats in accordance with the upper part. In a modification the spaced openings are formed between the upper edge of the tape and a beaded or corded edge, the drawcord passing across each opening in the form of a loop the apex of which is worked into the beaded edge.
Patent GB-1292427-A (GB)
Title: A built-up rail cost
Inventor: VERDERIO GUISEPPE
IPC: E04F11/18
Filed: 1971-04-19
Abstract: 1292427 Spiral staircase rails G VERDERIO 19 April 1971 [10 April 1970] 24389/71 Heading E1B A built up rail connecting the handrail 6 with the treads of a dismountable spiral staircase comprises a continuously threaded iron core and a series of wood or plastics sleeves B .. B 5  secured thereon by bushings C housed in recesses in their end faces. The lowermost sleeve B; is equal in length to the distance between treads, one tread being clamped in each space 4 or 5. A threaded flanged metal bush 7 allows adjustment of the core length.
Patent GB-1060988-A (GB)
Title: Improvements in and relating to containers and closures therefor
IPC: B65D47/10
Filed: 1964-06-12
Abstract: 1,060,988. Opening containers; container closures. MAUSER KOMM.-GES. June 12, 1964 [June 14, 1963], No. 24448/64. Headings B8D and B8T. A plastics container has a closure cover (1), Figs. I and 2 (not shown), in which a ring (16) capable of being torn out is formed by two parallel grooves (14), (15) spaced apart radially on the underside (2) of the closure cover and interrupted at the point (18), Fig. 2 (not shown). The beginning of the inner groove (14) merges into a groove (19) extending radially outwards. Tab (20) is gripped and the ring (16) is torn out with inner disc (22) still attached to it at the point (18). In a second embodiment, Figs. 3 and 4 (not shown), the cover bottom (2) is provided with an upwardly extending frustoconical portion.
Patent GB-241706-A (GB)
Title: Improved hems for knitted fabric
IPC: A41D27/24
Filed: 1924-10-16
Abstract: 241,706. Bowden, W. Oct. 16, 1924. Edges and selvages, treating. - A method of forming the fancy edging shown on fabric knitted from artificial silk consists in turning under the edge to form a hem and stitching it in a swinging needle sewing machine, successive stitches being made alternately within and without the outside edge of the hem. The tension of the sewing threads tends to draw the two rows of stitches towards each other as shown.
Patent GB-599595-A (GB)
Title: Improved method of refining glyceride oils
IPC: C11B3/06
Filed: 1945-09-21
Abstract: <PICT:0599595/III/1> Crude glyceride oils are refined by mist-mixing the oil with a water-adsorptive agent selected from the group consisting of salts containing water-adsorptive anions, (e.g., sodium silicate), colloidal silica (e.g., silica jelly) and mixtures thereof and with an aqueous caustic alkali solution, e.g., 20 to 30 per cent. which neutralizes the free fatty acids in the oil to form soapstock, and separating the soapstock from the oil, the amount of caustic alkali used being in sufficient excess of that required to neutralize the free fatty acids to ensure that some of it is present at the time of separation, and the agent being used in such an amount as substantially to reduce the proportion of neutral oil retained by the soapstock and to retard the saponification of the neutral oil.  The crude oil is heated in tank 1 by coils 2 and/or in heat exchanger 11 to, for example, 44 DEG  to 71 DEG C.  The water-adsorptive agent is distributed throughout the caustic soda solution in tank 16 by means of the agitator 18 and the mixture may be heated to the desired reaction temperature by means of coil 17.  The oil and refining solution are delivered to a centrifugal atomizing and mixing head 131 in exactly the desired proportions by means of variable delivery pumps 7 and 22 controlled by means of hand wheels 8 and 23, the rate of oil and reagent flow being observed by means of flow meters 12 and 25. The oil and reagent delivered to the head 131 are instantaneously mist-mixed and projected radially as a homogeneous mist-mixture, and flow as a film down the collecting walls of the closed reaction chamber 14, initially as an emulsion which is then broken by imparting to it a temperature of, for example, 60 DEG C to 83 DEG C, chamber 14 being jacketted for this purpose.  The mixing head 131 is driven by a belt 15.  The broken emulsion is discharged into receiver 30 and may either be delivered direct to the refining centrifuge 35 by means of pump 31 or preferably to 35 via a combined agitating and heating device 36.  The occurrence of free soapstock in the centrifuge discharge is thereby eliminated or greatly reduced, so that the oil from 35 may be delivered direct to the clarifying centrifuge 49.  Cloud may be removed from the oil in the clarifying centrifuge 49 by bye-passing the agitator 36 and pumping the oil from the refining centrifuge 35 through the combined cooler and agitator 44 where it is cooled to a temperature preferably below 33 DEG C. The soapstock previously dissolved in the hot oil is thereby thrown out of solution and coagulated, being thus readily separable from the oil.  Alternatively the oil from the centrifuge 35 may be delivered into tank 51 and cooled therein either spontaneously or by means of the coil 52.  After precipitation of the dissolved soapstock particles by this cooling they are coagulated by operation of the agitator 53 and the oil then delivered to the clarifying centrifuge 49.  Specification 571,973 is referred to.
Patent GB-1058425-A (GB)
Title: Process for the manufacture of magnetic recording media
IPC: C09D5/23
Filed: 1964-06-15
Abstract: 1,058,425. Magnetic structures. GEVAERT PHOTO-PRODUCTEN. June 15, 1964 [June 27, 1963], No. 24689/64. Heading H1H. A process for the manufacture of a magnetic recording medium comprises applying to a support a dispersion of magnetic particles in a solvent containing a curable polymer and a curing agent therefor, evaporating most of the solvent, and applying from a liquid phase to the nearly dry surface a curing catalyst. By this means, the surface of the layer becomes almost pure binder and is consequently hard wearing. The curable polymer is preferably a polyester or polyester amide modified with polyisocyanate and the curing agent is (a) an aldehyde, e.g. formaldehyde or a substance splitting off formaldehyde, in which case the catalyst is an acid; or (b) a polyisocyanate in which case the catalyst is a tertiary aliphatic amine or tin IV chloride. Among specified airing agents are hexamethoxy methyl melamine, formaldehyde resin, various isocyanates, ethanolamine; among the specified catalysts are sulphonic acid in methanol, or butyl acetate, triethylamine in butanone, and tin chloride in butanone. The curable resin forms one constituent in a mixed binder, the other constituent being a vinyl acetate/vinyl chloride copolymer or a vinyl acetate/vinyl formval copolymer or a cellulose acetobutyrate/vinyl acetate copolymer. The support may be polyethylene terephthalate provided with a subbing layer and the magnetic particles acicular γFe 2 O 3 . Various solvents are specified, and details of mixing, grinding, solution strengths, and drying times and temperatures are given.
Patent GB-282911-A (GB)
Title: Improvements relating to lamp shades
IPC: F21V1/00
Filed: 1926-10-06
Abstract: 282,911. Raitt, D. L. Oct. 6, 1926. Shades. - A lamp shade comprises transparent or translucent panels 3 removably held in horizontal slideways on the inside upper and lower edges of sheetmetal holders 1 having interlocking complementary vertical hinge sockets 6, 7 through which are passed rods or bolts engaged as by means of nuts 11 to assemble the shade and to retain the panels in the holders. The holders may be stamped to provide stiffening ribs. The shade may completely surround the source of light, being fitted with a domed or other rigid top piece 8 of square, hexagon, or other shape, with or without an open or closed bottom. Alternatively, the shade may only partially surround the source of light, in which case the top piece mav be triangular and the outer ends of the holders provided with complete sockets.
Patent GB-205485-A (GB)
Title: Improvements in or relating to acceptor or rejector circuits in alternating current systems
IPC: H03H7/03
Filed: 1923-10-05
Abstract: 205,485. Ges. f³r Drahtlose Telegraphie. Oct. 13, 1922, [Convention date]. Protective arrangements.-To a blocking-circuit A or a short-circuit B on an alternating-current system is coupled an auxiliary circuit F or E arranged to produce an additional voltage to compensate for the ohmic fall of voltage in the inductance of the blocking circuit or short-circuit.
Patent GB-838127-A (GB)
Title: A new or improved stair-carpet anchoring device
IPC: A47G27/06
Filed: 1957-08-07
Abstract: 838,127. Stair-carpet fasteners. WOODCOCK, A. F. Aug. 7, 1958 [Aug. 7, 1957], No. 24897/57. Class 52(5) A stair-carpet fastener comprises an angle-section strip, the cheeks 2, 3 of which lie against the tread and riser of a stair, behind a carpet 8, and have inclined, preferably upset, teeth 5 to penetrate the carpet back. Apertures are provided for securing nails or screws.
Patent GB-1150166-A (GB)
Title: Method and Apparatus for Cold-Reducing Strip.
IPC: B21F9/00
Filed: 1966-06-03
Abstract: 1,150,166. Stretching. UNITED STATES STEEL CORP. 3 June, 1966 [18 June, 1965], No. 24929/66. Heading B3E. Strip is reduced in thickness by passing it from a reel 2, around bridle rolls 48-53, around work rolls 54 and 58 with the maximum unsupported length of strip between the work rolls being 2", and around further bridle rolls 59-63 to a coiler 66. The ratio of the unsupported length of strip between the work rolls to the strip width is at least 9 to 1. Individually controlled motors keep the peripheral speeds of the rolls 48-54 equal to one another, while the peripheral speeds of rolls 58-63 are similarly kept constant but at a higher speed than that of rolls 48-54. The spacing between the work rolls is adjustable by longitudinal sliding movement of a housing supporting the rolls 48-54 relative to a fixed housing carrying the rolls 58-63. The movement is produced by a motordriven screw co-operating with a nut on the movable housing, the housing being hydraulically clamped when in a desired position.