baber/WOPTO huggingface dataset:
Patent GB-807476-A (GB)
Title: Improvements in or relating to fused bath electrical furnace
IPC: H05B3/03
Filed: 1956-08-01
Abstract: 807,476. Electric salt bath furnaces. UPTON, R. C., UPTON, N W., HARPER, J. E., BASSETT, L., DAVIS, W. L., and WILLIAMS, B. I. [trading as UPTON ELECTRIC FURNACE CO.]. Aug. 1, 1956 [Oct. 24, 1955], No. 23752/56. Class 39(3) [Also in Group XXXVI] In an electric furnace of the fused salt type, an electrode B for passing current through' the salt extends into the bath from below the upper surface thereof and is arranged to project so that only the limited surface area of the inner end portion of the electrode contacts the salt; and means are provided for advancing the electrode as this end portion wastes away. The electrode is of small diameter and is in aligned sections in end to end contact. The electrode is advanced by a screw F rotating in a plate E and bearing on a metal block G pressing on the outer end of the electrode through an insulating block H. Current passes from a cable J<SP>3</SP> to metallic conductors J extending longitudinally thereof and releasably compressed on the electrode B by a resilient tubular coil I wound on the conductors J by adjustment of the ends of the coil angularly by links I<SP>2</SP> and screws I<SP>4</SP> on posts I<SP>3</SP> (see Group XXXVI). Cooling fluid is passed through the coil by flexible pipes K. The posts I<SP>3</SP> are mounted on a channel beam C, which also has opposed apertures C<SP>1</SP> through any one of which is passed horizontally a pin C<SP>2</SP> with a bushing C<SP>3</SP> holding in adjusted position an angle member E, through the vertical flange E<SP>1</SP> of which passes the electrode adjusting screw F.
Patent GB-753959-A (GB)
Title: Article dispensing apparatus
Filed: 1954-08-16
Abstract: 753,959. Feeding sheets &c. UNITED SOUND & SIGNAL CO., Inc. Aug. 16, 1954 [March 17, 1954], No. 23756/54. Class 100 (1). Sheet &c. separators.-In apparatus from which newspapers or like flat flexible articles are dispensed, each article A is supported on a plate or shelf 21 so that the pile comprises alternate articles and shelves, the bottom shelf being supported at its ends by fingers 35. The shelves are arranged in a casing 10 provided with a removable front cover 63 within which a sample article S is supported, and projections on the shelves 21 engage in corresponding recesses 28 in the casing whereby the shelves are guided for vertical movement. Each shelf 21 has two rectangular recesses 37 at each end, and the supporting fingers 35 are arranged on latch members 33 which can both be displaced simultaneously transversely to coincide with the recesses 37 and so allow each plate 21 and supported article A to fall down. The recesses 37 in adjacent plates do not coincide, so that when the bottom plate is released, the rest of the pile is supported by the fingers 35. Guide rods 31, arranged in the recesses 28 of the casing 10, pass through elongated slots 32 in the plates 21 to assist the vertical sliding of the plates. Each finger latch 33 is mounted on the casing 10 for transverse sliding, is coupled by linkages to the other, and one has a link 36 operable by a cam 42 connected through a one-way clutch to a hand lever 41. The lever 41 is released for action by the insertion of a coin in a known coin-operated clutch mechanism, and can only rotate the cam through an arc of 90 degrees. The released bottom shelf 21 drops on to an inclined base 11, and the article A can be grasped through an aperture 12 for removal. The shelves 21 are shaped so that they nest one within the other. The pack of shelves can all be retained in an upper position to facilitate placing the articles A in position by latch finger mechanism similar to that which supports the operative pile. This comprises fingers 72 on latches 71 which can be slid transversely on the operation of a lever 75 which is only accessible when the casing cover 63 is removed. All the latch fingers are spring-urged downwardly into horizontal position to allow the shelves to be moved upwardly past them. When all the articles A on the shelves 21 are discharged, operation of the lever 41 discharges the sample article S from a display compartment 16 within the cover 63. The article S is supported by a trap door bottom 51 secured to a shaft 52 urged by a torque spring to lower the door 51, but a disc 53 secured to the shaft has a recess therein engaged by the end of a rod 55 to prevent the shaft 52 being turned. The rod 55 has a bent end 59 which is engaged by a finger 58 on the top shelf 21a when the latter is released by the latches 33 to cause the door 51 to be released, and the sample article S then falls and can be removed through the aperture 12.
Patent GB-969809-A (GB)
Title: A fastener for securing a nut device to an apertured support
Inventor: PARKIN LESLIE
IPC: F16B37/04
Filed: 1962-06-20
Abstract: 969,809. Securing nuts to work. CARR FASTENER CO. Ltd. March 28, 1963 [June 20, 1962], No. 23801/62. Heading F2H. [Also in Division E2] A nut, Fig. 2 (not shown), with a flange, preferably rectangular, at one end of a threaded barrel, is anchored at the edge of a panel by the clip shown, fitted over the panel edge with resilient limbs 1, 2 on either side of the panel so that an aperture 5 in the limb 2 is aligned with a bolt hole in the panel. The base of the barrel of the nut is gripped frictionally by arcuate recesses 4a, 4b formed at either side of a slot 4 which divides the limb 1 and the flange of the nut is held under the limb 1 against the panel. A shoulder 6 on the limb 1 abuts an edge of the nut flange to prevent the nut turning.
Patent GB-1103485-A (GB)
Title: Improved treatment for synthetic elastomeric filaments
Inventor: DENT ROBIN WILLIAM
IPC: D02J1/22
Filed: 1964-06-09
Abstract: 1,103,485. Hot stretching synthetic elastomeric filaments. COURTAULDS Ltd. 8 June, 1965 [9 June, 1964], No. 23809/64. Heading B5B. Synthetic elastomeric threads are heated to a temperature of at least 130‹ C. and simultaneously stretched at least 200%, e.g. 200 to 600% while they are passing between two thread-storage devices the speeds of which are adjusted to give the desired degree of stretching over a period of time not exceeding 1 minute. The threads leaving the second storage device are allowed to relax freely and are collected in a form substantially free from tension. The threads may be stretched over a distance of from 2 to 4 feet and the rate of feed of thread to the first storage device may be 10 to 200 feet per minute giving dwell times in the heating zone of from about 24 seconds to fractions of a second. The percentage stretch is calculated as the percentage increase in length based on the original length of the thread. The heating of the thread between the storage devices may be effected by passing the thread through a jacketed capillary tube, e.g. a tube about <SP>1</SP>/ 32  inch i.d., which is heated by passing high pressure steam through the jacket. The thread may be heated by running it in contact with an electrically heated plate. The temperature of the heating device may be as high as 230‹ C. In the examples, the threads used are polyester-based elastomeric threads of 420 and 700 denier obtained from an adipic acid-ethylene glycol-propylene glycol polyester reacted with an excess of diphenyl methane diisocyanate and extruded into aqueous ethylene diamine. The term " thread " is said to include filaments and yarns and the expression: an " elastomeric thread " is defined as meaning a thread having an elongation at break of at least 150%, a tensile recovery of 90% or more and a " stress decay " of less than 30%. The process of the present invention is a modification of that of Specification 916,287 in which the minimum treating time mentioned is 5 minutes.
Patent GB-1463972-A (GB)
Title: Milling machine
IPC: B02C18/12
Filed: 1973-05-19
Abstract: 1463972 Agitator mills AUGUST'S Ltd 2 April 1974 [19 May 1973] 23985/73 Heading B2A  An agitator mill 10 Fig. 2 has a bowl 16 surrounded by an external cooling jacket comprising a first cavity 64 formed by a first surrounding plate 62, and surrounding the first cavity a second cavity 68 formed by a second plate 66. Cooling liquid, e.g. water flows from a sprinkler ring 70 into the open top of the cavity 64, through holes at the bottom into the second cavity 68 and then over and outwardly of the top edge of the second cavity which may be restricted. Any liquid retained in the cavities is discharged by spinning the bowl. Material is ground by rotation of the agitator 24. The bowl being held by a brake disc 58. A clutch 40 allows the bowl to spin in a reverse direction and discharge ground material via a sieve ring 20, into a collection trough 60. A handwheel 14 Fig. 3 controls a speed adjuster 56 adjusting the effective diameter of a pulley 44 and thus the speed ratio between a motor 42 and an auxiliary shaft 48 which in turn drives a pulley 30 for the main mill shaft. A tachometer 54 indicates mill speed.
Patent GB-969283-A (GB)
Title: Recovery of maleic anhydride
IPC: C07C51/573
Filed: 1962-06-22
Abstract: The invention comprises a process for recovering maleic anhydride from a gaseous mixture containing maleic anhydride and water by cooling said mixture to a partial condensation temperature whereby a part of the maleic anhydride is condensed, centrifugally separating liquid maleic anhydride from the mixture, and continuously withdrawing as separate streams from the separation zone gas and condensed liquid maleic anhydride so that the withdrawn liquid maleic anhydride is substantially free from solid maleic acid. The surface area of liquid in contact with the gaseous mixture is preferably kept sufficiently low so that the content of maleic acid in the liquid is substantially within the solubility range of maleic acid in maleic anhydride at the partial condensation temperature. Centrifugal separation is preferably effected in a zone which in form is substantially a vertical cylinder with a constricted lower region connected to a liquid removal zone, the highest level of the liquid being at or below the lower end of the constricted region.  The condensation temperature may be 52 to 75 DEG C. and the pressure 0 to 400 p.s.i.g. The condensation temperature is preferably higher than the dew-point temperature of water at the partial condensation pressure.
Patent GB-961441-A (GB)
Title: Improvements in or relating to optical image transmission devices
Inventor: WHYTE JAMES NORWOOD
IPC: G03B39/02
Filed: 1960-07-12
Abstract: 961,441. Panoramic cameras. SECRETARY OF STATE FOR THE WAR DEPARTMENT. Aug. 31, 1961 [July 12, 1960], No. 24225/60. Headings G2A and G2J. An optical image transmission device includes a mirror prism and collimating means for directing a parallel beam of light through the mirror prism. In the panoramic camera system shown, light passes through a slit 1, collimator 2, mirror prism 3 on to an annular mirror 15 from where it is reflected in 6 a film 7 on a drum 4. The mirror prism 3 is rotatably mounted on shaft 6. Specification 907,665 is referred to.
Patent GB-933564-A (GB)
Title: Improvements in and relating to ultrasonic flaw-detectors
IPC: G01N29/30
Filed: 1960-07-12
Abstract: 933,564. Ultrasonic inspection devices. J. OBRAZ. July 12, 1960 [Aug. 19, 1959], No. 24282/60. Class 40 (7). A device for automatically adjusting the sensitivity of ultrasonic flaw detection apparatus comprises a first memory circuit which registers the sum of the amplitudes of all impulses fed to it in a preselected time interval of not less than the flaw echo time plus the final echo time, and a second memory circuit connected to receive information from the first memory circuit and to control the sensitivity of the detection apparatus, the contents of the first memory circuit being cancelled upon the emission of the succeeding ultrasonic pulse to the material under test and the contents of the second memory circuit being cancelled when the sensitivity has been controlled. Thus undesired increase of receiver sensitivity which would otherwise arise if the " bottom echo " alone were used for automatic gain control (A.G.C.) purposes is avoided. Reflected signals from transmitted pulses of constant p.r.p. are fed to video amplifiers 5, 6 after detection; amplifier 5 output is gated in valve 10 by a pulse from monostable multivibrator 9 of such timing and duration as to embrace flaw and bottom echoes. Valve 10 output is accumulated on capacitor 13 which is discharged at each pulse transmission from transducer 3. The simultaneous charging of capacitor 16, which is discharged by a pulse generated at the termination of the sawtooth time base of cathode-ray oscilloscope 7, provides a voltage which is compared with the adjustable voltage across potentiometer 22 tap and cathode follower 25 feeds the ensuing A.G.C. voltage to amplifier 6. Thyratron-controlled relay 28 actuates an alarm when no flaw or bottom echo is present at amplifier 4 output; the relay may also stop the supply of material being tested when automatic and continuous testing is being employed.
Patent GB-638382-A (GB)
Title: Improvements in or relating to the manufacture of bearings
IPC: F16C33/14
Filed: 1947-12-03
Abstract: A lining comprising a metallic mixture of silver with lead, or copper with lead, with or without other constituents, is applied to parts, other than the bore, of a bush or liner, in two stages, by first spraying a porous interlayer and then spraying a denser outer layer, the backing, interlayer and outerlayer being bonded by sintering. The flanges of a bush may first be shot-blasted to roughen their surface and degreased in trichlorethylene vapour.  A porous layer of the metallic mixture is then sprayed on, using a lower air pressure than normal and sintered in a reducing atmosphere, e.g., cracked ammonia.  A further layer of the same material but of greater thickness and density is then sprayed on and sintered in a similar manner.  For instance, a layer of lead-bronze of composition 70 per cent Cu, 29 per cent Pb, 1 per cent Sn may be heat treated at 800-850 DEG C for 1 hour.  In a modification, both layers are sprayed on before the heat treatment.  The bush is then heat treated at a lower-than-sintering temperature in a reducing atmosphere for a period sufficient to ensure that the air in the pores is completely displaced by the reducing gas, and then the temperature.  A lead bronze lining of 75 per cent Cu, 20 per cent Pb and 5 per cent Sn may be produced either (a) by spraying a mixture of the three metal powders in the desired proportions (b) by spraying a single powder in which every particle has the desired composition (c) by spraying a mixture of equal parts of 70 per cent Cu, 30 per cent Pb powder and 80 per cent Cu, 10 per cent Sn, 10 per cent Pb powder.
Patent GB-534152-A (GB)
Title: Improvements in and relating to alkali soluble cellulose ethers
IPC: C08B11/00
Filed: 1939-08-24
Abstract: 534,152. Cellulose ethers. REICHEL, F. H. Aug. 24, 1939, No. 24406. [Class 2 (ii)] Cellulose ethers are obtained by treating cellulosic material with alkali solution and then subjecting it to the action of an etherifying agent in the presence of a substantial amount of an anhydrous water-soluble inert salt capable of forming hydrates. with water, continuing the reaction until there are introduced into the cellulose sufficient ether groups to render the cellulose ether soluble at 0‹C. in aqueous sodium hydroxide solutions of 3 per cent. or less alkali concentration but insoluble in water, and thereafter discontinuing the reaction. The amount of water-soluble inert salt may be sufficient to combine with all the water present in forming the lowest hydrate of the salt. The salt used may be sodium sulphate, sulphite, carbonate, tetraborate, acetate, or citrate, or potassium carbonate, citrate. lactate, or tetraborate, or lithium acetate, tetraborate, or citrate. The cellulosic material may be cotton, jute, flax, hemp, straw, wood, sulphite cellulose, cotton linters, regenerated cellulose, de-esterified cellulose esters, hydrocellulose, or cellulose ethers of low degree of substitution. Caustic soda, caustic potash, or a quaternary ammonium hydroxide may be used for making the alkali-cellulose. The etherifying agent may be an alkyl halide or sulphate, sodium ethyl sulphate, a chlorohydrin, an alkylene oxide, or halogenated fatty acid. The anhydrous salt may be added at any stage prior to the etherification step. A further amount of the salt may be added to the washing liquids. In an example, pulp sheets made of cotton linters are soaked in caustic soda solution, drained and pressed. After ageing, the alkali cellulose is mixed with anhydrous sodium sulphate whereby the quantity of free water in the mixture is reduced and the alkali is concentrated. Ethylene oxide is then added and the mixture is kept-in motion by revolving the reaction vessel for several hours. The product is acidified and washed. The reaction is carried out so that the cellulose ether contains at least 2 per cent, of hydroxy-ethyl or its equivalent of another ether group. The product may be mixed with viscose, ammoniacal-copper solutions of cellulose, latex, aqueous artificial dispersions of rubber, gums, resins, casein, gelatine, waxes, fats, and oils. To the dilute alkali solutions of the cellulose ethers there may be added plasticizers, dyes, pigments, wetting agents, waterproofing, or fireproofing agents. The cellulose ethers may be used in the production of filaments, films, tubes, capsules, plastic masses, adhesives, stiffening agents for fabrics, coatings, sizings for textiles and paper, and they may be used as thickening and dispersing agents for pigments and dyes for printing and dyeing textiles and paper. Specification 496,122 is referred to.
Patent GB-368664-A (GB)
Title: Process for the production of foils, strips and other pellicular structures from aqueous cellulose solutions
IPC: C08L1/24
Filed: 1931-08-31
Abstract: The initially coagulated films, foils, and the like obtained from aqueous cellulose solutions, for example viscose, are subjected to dehydration by evaporation of the water therefrom and thereafter treated to regenerate the cellulose.  Suitable dehydration media are hot gases, such as air, at about 100 DEG  C., or oils heated to about 120 DEG  C.  The dehydration may also be effected by passing the coagulated film over a warmed support, for example an internally heated revolving drum.  The initial coagulation may be carried out by means of an organic liquid such as methanol, or an aqueous solution, which latter may, if desired, be warmed in order to accelerate the subsequent dehydration.
Patent GB-1214481-A (GB)
Title: Lubricating additive
Inventor: FORBES ERIC SIMON
IPC: C08F8/00
Filed: 1967-05-26
Abstract: 1,214,481. Lubricants. BRITISH PETROLEUM CO. Ltd. 3 May, 1968 [26 May, 1967], No. 24522/67. Addition to 1,012,281. Heading C5F. A viscosity index improver and detergent improver for lubricating oils comprises a polymer made by reacting an olefin with a phosphorus halide in the presence of a Friedel- Crafts catalyst, hydrolysing the polymer and then reacting the acid polymer formed with an amine. Thus, 3-methylbutene-1 or 4-methylpentene-1 is reacted with phosphorus trichloride in the presence of aluminium chloride. This product is hydrolysed and reacted with tetraethylene pentamine.
Patent GB-1090265-A (GB)
Title: Stabilizer compositions
IPC: C08K5/524
Filed: 1964-09-15
Abstract: Stabilizer compositions comprise (a) a polyester of 3:31-thiodipropionic acid or 4:41-thiodibutyric acid, a glycol and possibly a monohydric alcohol or a monocarboxylic acid as disclosed in Specification 1,090,264, and (b) a phenolic ultra-violet light stabilizer.  The stabilizer (b) preferably has the formula <FORM:1090265/C3/1> where R12 and R13 are hydrogen atoms or C1- 24 alkyl, alkyloxy or acyloxy radicals and v, w, x and z are 0, 1 or 2 or the formula <FORM:1090265/C3/2> where R14, R15 and R16 are hydrogen atoms or C1- 24 alkyl or aryl radicals.  The stabilizer compositions may also contain phenolic antioxidants which in addition to their phenolic hydroxy groups may contain salicylate or other ester groups, carboxy groups, alkyl carbonyl groups, alkoxy groups, secondary or tertiary amino groups, amido groups or sulphide or ether linkages.  The compositions may be used to stabilize fats, fatty oils, hydrocarbons, natural resins, cellulose esters, rubbers, polyesters, polycarbonates, polyurethanes, polyamides and olefin polymers or copolymers.  The latter are preferably (i) polymers of one or more C2- 22 olefins or mixtures thereof with isoprene, butadiene, styrene or acrylates, or (ii) admixtures of polyolefins and polyamides, polyesters or synthetic rubbers.  Examples describe the stabilization of polypropylene filaments.
Patent GB-1441713-A (GB)
Title: Preserving agent
IPC: A01N43/32
Filed: 1974-06-05
Abstract: 1441713 Preserving latex emulsions against micro-organisms L GIVAUDAN & CIE SA 5 June 1974 [6 June 1973] 24846/74 Heading C3Q [Also in Divisions A5 and C5] The detrimental growth of micro-organisms in aqueous emulsions of latex is inhibited by incorporating in the aqueous emulsion paraldol, i.e. 2 - (2 - hydroxypropyl) - 6 - methyl - 1 - 3- dioxan - 4 - ol. Concentrations of from 0À025- 1% by wt. are used.
Patent GB-599771-A (GB)
Title: Improvements relating to dielectric compositions
IPC: C04B35/468
Filed: 1945-09-25
Abstract: A dielectric composition consists of a fired mixture comprising a titanate, a zirconate and a stannate of an alkaline earth metal or of magnesium, particularly barium titanate containing minor amounts of barium stannate and barium or magnesium zirconate.
Patent GB-1199656-A (GB)
Title: Improvements in or relating to Ball Valves
Inventor: GACHOT JEAN
IPC: F16K5/06
Filed: 1968-05-24
Abstract: 1,199,656. Valves. J. GACHOT. 24 May, 1968 [2 June, 1967], No. 24875/68. Heading F2V. A rotary ball valve has the plug 5 co-operating with seating rings 15 carried by stainless steel rings 11 the rims of which carry resilient sealing rings 17 which are clamped between adjacent ends of the valve housing and the pipe flanges. Rings 15, 17 can be of P.T.F.E., and ring 17 may alternatively be of circular cross-section.
Patent GB-1154628-A (GB)
Title: Valve Casing Comprising Two Forged Portions which are Welded Together.
Inventor: VOGT EUGEN
IPC: F16K27/10
Filed: 1967-05-30
Abstract: 1,154,628. Making valves; welding by fusion. E. VOGT. 30 May, 1967 [31 May, 1966], No. 24879/67. Headings B3A and B3R. [Also in Division F2] A valve casing of inverted T-shape is formed of an upper forged half 3 with a top opening 20 and an arcuate transverse rib 5, and a lower forged half 4 with an arcuate inverted V-shaped transverse rib 6. A valve seat carrier ring 7 is welded to the locating surface 31 of the rib 5 prior to welding the two casing halves together along the machined longitudinal joining faces. The ring 7 is thereafter welded to the apex of the rib 6 by either electron bombardment (29), Fig. 9 (not shown) or by weld metal 24<SP>1</SP> contained in an arcuate recess in the rib 6. The weld between the two halves, and the ring 7 with the rib 5 can be made by electron bombardment. Each casing half has the shape of a shallow oyster shell up to the concave inner surface of its respective rib, the rib 5 subtending an angle greater than 180 degrees, e.g. 230 degrees, while the rib 6 subtends an angle less than 180 degrees, e.g. 140 degrees. The ring 7 is thus made up of two arcuate portions into an oval shape carrying a circular valve seat which is approximately of the same diameter as the inlet opening 14, outlet opening 15 and top opening 20. The two halves of the casing are of substantially constant height while the width opens out at the valve centre to approximately twice the diameter of the inlet or outlet opening. Connecting flanges 1 are welded to the ends of the casing and a fitting ring 2 for a cover 13 is welded to the top of the upper half. The ring 2 carries threaded bosses 22 which mount the cover 13 by bolts 19.