baber/WOPTO huggingface dataset:
Patent GB-226801-A (GB)
Title: Process for the production and repair of refractory linings for hearths of metallurgical and other furnaces
IPC: F27D1/16
Filed: 1924-12-08
Abstract: 226,801. Vacuumschmelze Ges., and Rohn, W. Dec. 24, 1923, [Convention date]. Hearths of metallurgical &c. furnaces are formed by filling in a dry granular refractory material, such as quartz sand, alumina, magnesite, or bauxite, beneath and behind a metal template or mould, which, when the furnace is put into operation, retains its shape long enough for the lining to frit and thereafter melts. When the normal working temperature is not sufficiently high to frit the refractory material, small quantities of other substances may be added, for example, glass powder, ground with oxide, ground slag, boracic acid, silicates, and borates. A suitable mixture for hearths sed in melting nickel-copper and nickel-copper-zinc alloys consists of quartz sand with 2 per cent powdered glass or 3 per cent boracic acid. A crack may be repaired by pouring in finelypowdered material and covering the crack with a strip of metal.
Patent GB-991089-A (GB)
Title: Recovery of solid olefin polymers from slurries thereof
IPC: B01J19/18
Filed: 1963-07-25
Abstract: Solid olefin polymers are recovered from a slurry of same in an inert liquid hydrocarbon diluent, present in a zone at a pressure sufficient to maintain the diluent in the liquid phase, by introducing the slurry from the zone to a heated confined zone of reduced pressure thereby vaporizing the diluent, forming a suspension of substantially dry polymer particles in the vapour, discharging the suspension into a solids separating zone maintained at substantially atmospheric pressure and recovering the polymer. The temperature in the confined zone is generally above the boiling point of the diluent at the prevailing pressure and below the softening point of the polymer.  The confined zone has generally a progressively larger cross-sectional area to permit expansion of vapours. The olefin may be ethylene, propylene, 1-butene, 1-pentene, or 3-methyl-1-butene. The polymers are generally made with a Ziegler-Natta-type catalyst, in the presence of hydrogen, and recovered by known techniques.  The exemplified polymer is polypropylene and the diluent propylene. The Specification includes a flow diagram of a continuous bulk polymerization process using a loop reactor, a purifying and polymer recovery process, and also a monomer and diluent recovery process. Specification 790,195 is referred to.
Patent GB-651472-A (GB)
Title: Recording cathode ray oscillograph
IPC: G01R13/28
Filed: 1947-11-05
Abstract: 651,472. Cathode-ray oscillographs. ELECTRICITE DE FRANCE. Nov. 5, 1947, No. 29544. Convention date, Feb. 4. [Class 37] In order to record several phenomena simultaneously, several cathode-ray oscillographs are so arranged that images of their luminous spots are focused on the same moving band of photographic paper. Three cathode-ray tubes 7 are contained in carriers 21, Fig. 1, and are each provided with a lens 8 arranged to focus the images of the spots on the screens on to the same horizontal line on a band 18, Fig. 3, of photographic paper which passes over a roller 12, Figs. 2 and 3. This is driven by a motor 2 through a gear-box 10 and electromagnetic clutch 11. The exposed portion of the band 18 passes through a slit into a detachable box 20 and is severed from the paper supply by pushing down a knife 9 which also prevents entry of light into the box. The carriers 21 are slidable at right angles to the direction of travel of the paper band, to enable the axes of oscillation of the spots to be adjusted. Currents to be examined are applied to terminals 6 and pass through deflection coils 22, which may be exchanged for others having different numbers of turns. The coils 22 may be shunted by resistor-inductor sets so dimensioned that the currents through the shunt and deflecting coils shall be independent of frequency. A transformer 14 provides currents for heating the cathodes and also rectified current for the concentration circuits 16, the electromagnetic clutch 11, a Wehnelt control relay 17, and the H.T. supply to the tubes. The relay 17 and clutch 11 are controlled simultaneously by the circuit for putting in and out of action the paper-feeding device.
Patent GB-835768-A (GB)
Title: Improvements in or relating to the manufacture of commutators and slip rings for electrical machines
IPC: H02K13/00
Filed: 1956-09-27
Abstract: 835,768. Commutator and collecting gear for dynamo - electric machines. SIEMENSSCHUCKERTWERKE A.G. Sept. 27, 1956 [Sept. 28, 1955], No. 29574/56. Class 35. In the process of manufacturing an electrical machine commutators or slip rings, the mica insulating layer thereof is formed from mica pulp into its desired final shape by electrophoretic deposition, the pulp being formed by partly calcining mica so that some of its water of crystallization is removed, comminuting the mica, and then re-introducing the water of crystallization into the comminuted mica. The layer comprises either a commutor sleeve or a slip ring bush which in the embodiments of Figs. 3 or 5, are deposited on a former not shown, detached, and then assembled to the commutator or slip ring. Alternatively, as shown in Figs. 1 and 2, the layer 6 is deposited directly to the bore and ends of a ring of segments 1 mutually separated by mica sheets 8; various alternative shapes of segments anchoring extensions 2 ... 5 are disclosed and a hub 10 may be cast or injection moulded into the insulated parts. Specification 793,267 is referred to.
Patent GB-1122803-A (GB)
Title: Improvements relating to drawn wire
Inventor: SHERWIN LEONARD
IPC: B21C1/02
Filed: 1964-07-22
Abstract: A method of manufacturing a mono-filament drawn wire the cross-section of which increases progressively along its length comprises drawing a length of wire through a die whose throat is susceptible to progressive wear by the passage of the length of wire through it, the material of the die being at least as susceptible to wear as the material of the wire, whereby the cross-section of the die increases progressively and substantially through wear as the length of wire is drawn through it.  In an example describing the production of a high-tensile high-carbon steel wire 65,000 ft. long the wire is drawn through a high-speed steel die.  At the beginning of the operation the wire leaves the die with a diameter of .030 ins. and at the end of the operation the die-wear is such that the wire diameter is .064 ins.  The rate of die-wear is accelerated, by comparison with known processes, by using a die in which the throat is of reduced axial length. The rate of die-wear can be controlled by using an abrasive-carrying lubricant, measuring the diameter of the wire leaving the die and varying the abrasive content of the wire to produce the required taper.  The filaments may be used to form a multi-strand cable, the filaments all tapering in the same direction along the cable and all extending over the whole length of the cable.
Patent GB-732333-A (GB)
Title: Shuttle picking mechanism for weaving looms
IPC: D03D47/24
Filed: 1953-10-26
Abstract: 732,333. Loom picking motions. SULZER FRERES SOC. ANON. Oct. 26,1953 [Nov. 3, 1952], No. 29594/53. Class 142(2). In a spring picking-motion, the picking arm is held ready for picking against the force of the spring by a toggle which is upset, to pick the shuttle, by a cam. The picking arm 4 is mounted on a hollow shaft 2 having an arm 22 connected to the toggle 24, 25. The member 25 is pivoted at 26 and a roller 31 thereon is engaged by a cam 32 on a shaft 33 driven from the main shaft. The cam 32 moves the toggle and the shaft 2 to load a torsion bar spring 19 within the shaft 2. Further rotation of the shaft 33 brings a roller 68 on the cam 32 into engagement with an extension 65 of the member 25 and moves the toggle through the dead-centre position thereby releasing the force of the spring 19 which picks the shuttle. An adjustable stop engaging the lower end of the member 25 holds the toggle in the loaded position just past its dead-centre. The picking arm is braked by a piston 29 which forces liquid past an adjustable throttle valve 75. The picker 7 is fixed to a slider 8 engaging a rail 9. Specification 732,332 is referred to.
Patent GB-357796-A (GB)
Title: Improvements in or relating to apparatus for affining raw sugar
IPC: C13B30/06
Filed: 1930-10-03
Abstract: 357,796. Centrifuges. WIESNER, J., Nestemice, Czecho-Slovakia. Oct. 3, 1930, No. 29661. Addition to 352,619. [Class 23.] A centrifuge 4 for refining raw sugar has a spreading or spraying tray 1 for the sugar introduced. The tray is mounted on the rod 2 and may be moved up and down by a two-armed lever 6, 7. A delivery bend 10 is mounted above the tray and sugar is fed from a funnel 12 on to an endless band 11. Instead of the tray, a trough 13, Fig. 3, open at the top and at its side facing the wall of the centrifuge may be used, or a trough which is inclined in a direction towards the bottom of the centrifuge with -its end bent approximately horizontally may be used.
Patent GB-850367-A (GB)
Title: Process for the treatment of vegetable substances
IPC: C07D307/50
Filed: 1956-09-28
Abstract: Pentosancontaining vegetable materials are hydrolysed with a hot diluted volatile carboxylic acid, e.g. acetic, formic or oxalic acid, to yield furfural and cellulose.  From the reaction solution three distillate fractions are separated-(a) an aqueous fraction consisting of a solution of pentoses in water, which is recycled to the reactor, (b) an acid fraction which is recycled after adjustment of the pH value and concentration, and (c) a furfural fraction which is discharged.  The cellulose residue left in the reactor may be freed from lignins by treatment with sodium hydroxide solution or a solution of a sodium salt.ALSO:Pentosan-containing vegetable materials are hydrolysed with a hot diluted volatile carboxylic acid, from the resulting solution are separated three fractions, namely an aqueous fraction consisting of a solution of pentose in water, an acid fraction and a furfural fraction of which the aqueous fraction is recycled, the acid fraction, after adjustment of the pH and concentration if required, is also recycled, and the furfural fraction is discharged continuously and recovered.  Cellulose is separated from the residue.  Suitable acids are, for example, acetic, formic and oxalic acids and suitable pentosan-containing materials are, for example, straw, chaff of cereals, and husked corn cobs.  It is preferred to carry out the process at a pH value of 4 and an acid concentration of approximately 10%.  The cellulose residue remaining in the reactor may be treated with a solution of sodium hydroxide or of a sodium salt to eliminate the lignins therefrom. Pentoses obtained may be converted to furfural by treatment with sulphuric acid.
Patent GB-816167-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25D21/14
Filed: 1957-09-20
Abstract: 816,167. Refrigerators. WHIRLPOOL CORPORATION. Sept. 20, 1957 [Sept. 27, 1956], No. 29702/57. Class 29 The bottom plate 29 of the outer shell of a refrigerator is bent downwards at 41, 42 to form side fore-and-aft rails 39, 40 supporting the cabinet and defining between them a space for the condensate pan 162 and through which air can circulate. The centre part of the rear of the plate is formed as a resilient support 50 for the motor compressor unit 61 the upper part of which carries a bracket 163 to which the condenser 160 is secured. The upper parts of the condenser are secured to the back wall of the cabinet by resilient clips. The condenser consists of horizontal or vertical runs spanned by wires 113. A cover 170 is disposed to the rear of the compressor unit and the unit enclosure is lined with sound absorbing material 175, 159. The pan 162 has staggered baffles 164 extending upwards to slide on plate 29 so that the air takes an elongated path. Reference has been directed by the Comptroller to Specification 763,454.
Patent GB-1517826-A (GB)
Title: Method of preparing a biodegradable foam of cross-linked polyurethane
IPC: C08G18/00
Filed: 1976-07-16
Abstract: 1517826 Biodegradable polyurethane foams W R GRACE & CO 16 July 1976 [18 July 1975] 29756/76 Heading C3R Biodegradable, cross - linked polyurethane foams are prepared by reacting with water, under foam-forming and cross-linking conditions, an isocyanate-terminated polyurethane prepolymer which is derived from a polyol reactant comprising a hydroxyester polyol, the amount of water being from 6À5 to 390 moles per mole of isocyanate groups of the prepolymer. For the polyurethane to be cross-linked, suitably either the prepolymer has a functionality greater than two or an isocyanate-reactive cross-linking agent is brought into reaction with the prepolymer. Preferred hydroxyester polyols are esterification products of a hydroxy acid and a polyhydric alcohol. In examples, such polyols are derived from lactic acid and trimethylol-propane, glycolic acid and trimethylolpropane and lactic acid, polyethylene glycol and trimethylolpropane. The polyol component also preferably comprises a polyoxyethylene polyol. The foams degrade under the action of protease-producing bacteria or sewer sludge or by composting.
Patent GB-262913-A (GB)
Title: Improvements in and relating to recording apparatus for investigating the motion of moving bodies
IPC: G01P1/12
Filed: 1925-11-25
Abstract: 262,913. Hansel, C. W. Nov. 25, 1935. Drawings to Specification. Recording by co-ordinates.-Apparatus for recording a diagram of the track of a moving body for demonstrating the laws of dynamics and kinematics comprises a track gouged out of a block of wood, metal &c. the transverse section of which may be circular, cycloidal, parabolic &c. and the median line may be a straight line or other curve. A strip of copying paper overlaid with a record strip is laid in the said track and a metal sphere with a known period of oscillation is provided, which when the track is inclined rolls down and oscillates transversely to leave a sinuous record. The block may be placed on an inclined drawing-board and the motion in various directions across the board investigated. For dynamical experiments the board may be fitted with frictionless wheels to form a trolley and be caused to move by the application of a known force, the ball being mounted in transverse guides. The ball may be delivered from the block to an inclined drawing board so as to trace a parabolic trajectory. The track may be formed from a sheet of flexible material to represent the inner surface of a portion of a horizontal cylinder or vertical cone.
Patent GB-1025427-A (GB)
Title: Process for the production of cyclohexene and methylcyclohexene
IPC: C07C5/05
Filed: 1963-07-26
Abstract: Cyclohexene or a methylcyclohexene is obtained from a dihydrobenzene or a dihydrotoluene by contact with one or more alkali or alkaline earth metals or amides thereof. The amides effect disproportionation with simultaneous production of benzene or toluene.  With the metal some disproportionation and some reduction occur, the cyclohexene being formed in excess of the aromatic product.  Using a metal with a proton donor, preferably in an amount less than equivalent to the metal, reduction only occurs.  Suitable proton donors are water, alcohols and nitrogen compounds such as ammonium chlorate, nitrate, chloride, acetate or benzoate, acetamidine, guanidine, urea, sulphamide and acetamide.  Dihydrotoluenes yield 1-methylcyclohexene-1 or a mixture thereof with 1-methylcyclohexene-3. Temperatures of - 5 to 40 DEG  C. are used in the examples.
Patent GB-207556-A (GB)
Title: Improvements in air-heating stoves and furnaces
IPC: F24H3/00
Filed: 1923-11-27
Abstract: 207,556. Blanchard, G. N. Nov. 27, 1922, [Convention date]. Air-heating stoves comprise a casing 9 shaped to form pockets 7 in open communication with a chamber 6 having a burner 18 or other combustion means at its lower end, the casing being enclosed within an outer wall 1, between which and the inner casing the air to be heated circulates. A downward flow, as indicated by the arrows, is maintained in the pockets 7 owing to the cooling of the heating-gases by contact with the casing. The rear end of the chamber 6 is closed, except for a narrow slot 14 at the top, and the heating-gases are exhausted through a flue 15.
Patent GB-324100-A (GB)
Title: Improvements in or relating to multi-conductor ribbon cables and the manufacture thereof
IPC: H01B7/08
Filed: 1928-10-17
Abstract: 324,100. Standard Telephones & Cables, Ltd., (Straeten, A. L. H. van der). Oct. 17, 1928. Flat strip cables and conductors.- A ribbon cable of the type used in automatic telephone installations for the multiple connection of selecting switches comprises parallel wires connected together and insulated from each other by threads braided or knitted together so as to leave the conductors bare in a diagonal line. In the contruction shown in Fig. 1, metallic conductors A - - G are bound together by threads 1 - - 3 which pass diagonally over the conductors, the threads crossing each other as shown and turning at the edges S, S<1> of the strip. In order to form the bare strips on the wires, the threads are turned round the preceding wire. After turning either at the edges S, S' or at the bare strips, the threads pass under the conductors, interlacing with the threads in the opposite direction. Fig. 2 shows a ribbon cable with bare portions, the braiding threads 1 - - 5 passing alternately over and under the conductors A - - - U and turning at the conductor preceding the one to be bared. Every ten braiding threads, a braiding thread continues its course instead of turning round the conductor preceding the one to be bared.
Patent GB-445886-A (GB)
Title: Improvements in electric indicating apparatus
IPC: H02J3/46
Filed: 1934-10-19
Abstract: 445,886. Current meters. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and MATHEWS, P., 7, Elsee Road, Rugby . Oct. 19, 1934, No. 29987. [Class 37] In order to indicate the load-sharing condition of alternating-current generators connected in parallel, their output circuits include the primary windings of current transformers, two current meters being connected in each secondary winding in series and shunt, a comparison of the meter readings providing an indication of the individual loads. The ammeters 3 are connected in a series circuit including the secondary windings 1, ammeters 2 being connected in shunt to each secondary winding. Switches 4 are provided for connecting the meters 2, 3 in parallel across any secondary winding. The ammeters are all graduated to read twice the current flowing so that the mean of the readings indicates the load share carried when the impedances of each circuit are equal. Ammeters 3 at all times read the average output so that if one load is adjusted to give equal readings on its associated meters 2, 3, the output of the generator concerned will be equalized to the average of all.
Patent GB-1426393-A (GB)
Title: Refrigeration apparatus for use in an air conditioning system
IPC: F24F11/02
Filed: 1973-06-25
Abstract: 1426393 Refrigerating NISSAN MOTOR CO Ltd 25 June 1973 [28 June 1972] 30000/73 Heading F4H In a refrigeration system having a compressor 10, a condenser 14, a drier 18, an expansion valve 22 and an evaporator 24, a tape coated with a thermochromic material is disposed on either side of the drier 18 to indicate any abnormal temperature conditions in the system by changing colour. The thermochromic material may be a liquid crystal. The drier or receiver-dehydrator 18 includes two chambers, an inlet chamber 18b and an outlet chamber 18c, separated by a dehydrating agent 18a.
Patent GB-834089-A (GB)
Title: Improvements in or relating to thread counting devices
IPC: G02B25/02
Filed: 1957-09-25
Abstract: 834,089. Testing fabrics. WITTE, W. Sept. 25, 1957 [Oct. 4, 1956], No. 30046/57. Class 42 (2). A thread counter having a displaceable needle is fitted into a magnifier attachment which is illuminated by a pocket lamp. The needle 6 is observed through an aperture 3 of unit length and is movable by means of the rod 4. The counter, which has a flange 7, fits into one end of the magnifier 9 which has a lens 93 and a projection 91 with a bayonet fitting for attachment to a pocket lamp 10 after the lens 11 of the lamp has been removed.
Patent GB-465164-A (GB)
Title: Improvements in prepayment mechanism for gas meters
IPC: G07F15/02
Filed: 1935-10-31
Abstract: 465,164. Prepayment mechanism for gas meters. KIRKEWHITE METERS, Ltd., and GOLDSPINK, G. E. Oct. 31, 1935, No. 30048. [Class 27] In the prepayment gas-meter mechanism described in Specification 335,000, [Class 27], the gear change rod H, Fig. 1, that passes through the quantity screw is connected to the coin pocket mechanism so that the coin pocket is adjusted to receive the appropriate coin, a penny or a shilling, at the same time as the gear is changed. The rod H is carried through the front price-change plate P and provided with a knob P<1> so that the pocket and gear can be adjusted by the consumer. The rod H has a conoidal collar J which acts on a nose K of a member D pivotally and slidably mounted by means of a slot D<1>, Fig. 3, at E on the guard plate B carrying the coin pocket A. When a shilling is to be used, the rod H is pushed in and the collar J moves the member D against the action of a spring F to bring a platform C carried by the member D into a gap in the pocket A to reduce the effective depth of the latter. A guard A<1> overlaps the platform to prevent this from catching on the side of the pocket. During the insertion of the shilling, the platform is first depressed and then raised by the spring F to engage the shilling in the teeth of the coin wheel G. Adjustment of the gear and pocket is prevented, until the supply previously prepaid has been consumed, by a spring controlled lever M which holds the movable wheel L of the change gear in one or other of its adjusted positions. Just before the valve-operating slide N closes the valve, it actuates a lever O which lifts the lever M and allows the wheel L to be moved.