baber/WOPTO huggingface dataset:
Patent GB-478977-A (GB)
Title: Improvements in or relating to treatment of sewage
IPC: C02F11/127
Filed: 1937-01-22
Abstract: 478,977. Treating sewage. AMERICAN CENTRIFUGAL CORPORATION. Jan. 22, 1937, No. 1948. Convention date, Feb. 3, 1936. [Class 111] In a method of treating sewage, the sludge precipitated from the raw sewage is centrifugally dewatered to such an extent that it will support its own combustion. In general, the plant comprises primary and secondary settling tanks, a sludge storing and thickening tank, and a battery of centrifugal separators with a valve-controlled measuring tank in the feed to each separator, means being provided for returning the liquid effluent from the centrifugal treatment to one or more earlier stages of the treatment process to control the condition of the sludge. The raw sewage is delivered by a pipe 3 with strainer B to a primary settling tank A, from which the partially clarified liquid passes through a connection 9 and a chemical treatment tank or (as shown) an aeration tank C to a final settling tank D, from which the clarified water passes through a pipe 16 to the final discharge, e.g. through a chlorinator E. The sludge from the settling tanks A, D is fed by pumps 17, 171 and a pipe 18 into a storage, thickening, and degreasing tank F, from which the thickened sludge is delivered by a pipe 26 to a battery of centrifuges G, G<1>, &c., which may be constructed and controlled as described in Specification 453,651, [Group II]. The centrifuges are provided with measuring-tanks 28, 28<1>, &c., the charging and discharging of which are controlled by valves 30, 30<1>, &c. and 29, 291, &c. according to the rate of feed and timing required. The valves 30, 30<1>, &c. and 29, 291, &c. may be controlled electrically by means of a float 37, Fig. 2, and a pivoted mercury switch 34. The dried sludge is discharged on to a conveyer H. The liquid effluent is discharged into a sump I and pipe 39, which has two valve-controlled branches 40, 41, the branch 40 leading to a grease trap J and thence to a pipe 46 having branches 47, 48, the former leading to the pipe 41 and the latter back to the sewage inlet 3. The pipe 41 may be connected to a chemical tank K, and mav deliver effluent either through the pipes 47, 48 to the inlet 3 or into the sludge pipe 18, either direct or through a mixing aerator L byepassed into the sludge-delivery to the storage tank F.
Patent GB-1005102-A (GB)
Title: Improvements in or relating to niobium-coated uranium carbide articles
Inventor: THEISON ROGER
IPC: G21C3/58
Filed: 1963-01-16
Abstract: In a vapour deposition process of coating uranium carbide with niobium the uranium carbide is cleaned by ionic bombardment in an evacuated enclosure and the niobium is evaporated in the same enclosure by electron bombardent. The uranium carbide may first be cleaned mechanically and/or chemically and an intermediate bonding layer of copper may be vapour deposited prior to coating with the niobium.  A screen may be interposed between the uranium carbide and the niobium source at the start of the vaporization and the coated uranium carbide is heated at 400-650 DEG C. for at least one hour. The coated article is also ultrasonically vibrated to improve the bonding.  The coated uranium carbide may be sheathed in sintered aluminium.
Patent GB-1181201-A (GB)
Title: A Process for the Preparation of Alkyd Resins
Inventor: CHARLES JEAN-PAUL
IPC: C08G63/137
Filed: 1968-01-15
Abstract: 1,181,201. Alkyd resins. PRODUITS CHIMIQUES PECHINEYSAINT -GOBAIN. 15 Jan., 1968 [16 Jan., 1967], No. 2075/68. Heading C3R. An alkyd resin is made by reacting (1) a mono-ester of a cyclopentanetetracarboxylic acid and a monohydric alcohol of b.p. higher than 130‹ C. (preferably a C 5-15  alcohol) and (2) a polyhydric alcohol (e.g. glycerol, trimethylol propane or pentaerythritol). The reaction mixture may also include a fatty acid (e.g. pelargonic acid or linseed fatty acids) or a triglyceride alcoholysis. product. Coating compositions are made by (a) dissolving the products of acid number less than 10 in an organic solvent (e.g. xylene or white spirits) or (b) neutralizing the products of acid number 50-100 with a base (e.g. triethylamine) and dissolving them in water. Urea-formaldehyde resins or melamineformaldehyde resins may be added to these compositions.
Patent GB-1517452-A (GB)
Title: Corrosion testing of metal
IPC: G01N17/00
Filed: 1976-01-20
Abstract: 1517452 Metal corrosion testing VEREINIGTE METALLWERKE RANSHOFEN BERNDORF AG 20 Jan 1976 [21 Jan 1975]  02183/76 Heading G1B A test solution for metal corrosion testing comprises by volume 0.5 to 5% NaCl, 0À1 to 1% H 2 O 2  and sodium acetate buffer. Corrosion of Al or its alloys can be tested with the solution.
Patent GB-882151-A (GB)
Title: Improvements in the separation and recovery of dimethyl terephthalate from vapour mixtures containing the same and methanol
Inventor: SINN RICHARD
IPC: C07C69/82
Filed: 1960-01-21
Abstract: Dimethyl terephthalate is recovered from a vapour mixture consisting mainly of dimethyl terephthalate and methanol by leading the mixture at a temperature between 150 DEG  and 350 DEG  C. into methanol boiling under reflux, which serves as a cooling medium, and withdrawing a suspension of dimethyl terephthalate in methanol from the system at a rate corresponding to the amount of methanol and ester introduced with the vapour mixture; the dimethyl terephthalate is then separated from the suspension in known manner, e.g. by filtration, centrifuging or decantation, if desired after the suspension has been cooled to between 40 DEG  and -10 DEG C.  The vapour mixture to be treated preferably contains at least 0,1 part by weight of dimethyl terephthalate per part of methanol and may be a mixture obtained by distilling crude dimethyl terephthalate by carrier-vapour distillation, methanol vapour being used as the carrier.  The crude dimethyl terephthate may itself have been obtained from p-xylene by oxidation with nitric acid and the impurities in the vapour mixture may comprise methyl toluate, esters of nitrobenzoic acid, dimethyl nitroterephthate and monomethyl terephthalate.  Specification 770,797 is referred to.ALSO:Dimethyl terephthalate is recovered from a vapour mixture consisting mainly of dimethyl terephthalate and methanol by leading the mixture at a temperature between 150 DEG C. and 350 DEG C. into methanol boiling under reflux, which serves as a cooling medium, and withdrawing a suspension of dimethyl terephthalate in methanol from the system at a rate corresponding to the amount of methanol and ester introduced with the vapour mixture; the dimethyl terephthalate is then separated from the suspension in known manner, e.g. by filtration, centrifuging or decantation, if desired after the suspension has been cooled to between 40 DEG C. and - 10 DEG C.  The vapour mixture to be treated preferably contains at least 0.1 part by weight of dimethyl terephthalate per part of methanol and may be a mixture obtained by distilling crude dimethyl terephthalate by carrier-vapour distilling, methanol vapour being used as the carrier.  The crude dimethyl terephthalate may itself have been obtained from p-xylene by oxidation with nitric acid and the impurities in the vapour mixture may comprise methyl toluate, esters of nitrobenzoic acid, dimethyl nitroterephthalate and monomethyl terephthalate. Specification 770,797 is referred to.
Patent GB-191290-A (GB)
Title: Improvements in electrically driven syrens
IPC: G10K7/04
Filed: 1922-01-25
Abstract: 191,290. Efandem Co., Ltd., and Eaton, J. Jan. 25, 1922. Sirens. - In an electrically-driven siren, the rotor voice member e is freely mounted on the shaft b of the driving armature and is pressed alternatively against a friction driving face g or against a brake face h on the stator voice member f upon operation of the motor switch p. Pulling of a cable n closes the contact between the switch lever p and a spring s, and by means of a pulley i screws a bush i further into the boss f<3> of the stator member, forcing the rotor member into contact with the driving-disc g through a spring l. On return of the cable by a spring o, the switch p is opened, and the bush i is withdrawn and finally strikes a head k<1> on the shaft k of the rotor member, moving it axially into con. tact with the brake disc h. Alternatively, the switch p may be arranged to cut out or insert a resistance in the motor circuit.
Patent GB-371920-A (GB)
Title: Improvements in tipping gear for vehicles
IPC: B60P1/12
Filed: 1931-01-23
Abstract: 371,920. Tipping vehicles. SMITH, C. H., 210, Station Road, Beeston, Notting- hamshire, and SINCLAIR, J. E., Braemar, Roosevelt Avenue, Long Eaton, Derbyshire. Jan. 23, 1931, No. 2253. [Classes 103 (iv) and 108 (i).] In tipping vehicles the tipping gear comprises three links pivoted respectively to the body, a fixed part such as the chassis and a movable driving member and all three links being pivoted together at their free ends at a common pivot. As shown, arms F secured to toothed segments G mounted on the frame D secured to the under carriage and arms or links M pivoted at M<1> to the vehicle body A are connected together by a link L while a further link N is pivoted at Ll and to the frame D. The link M is provided with a portion M<3> adapted to engage pins M<5> on the vehicle body so that at the beginning of the tipping the thrust is applied at M<5>, that is to say at a point as remote as possible from the tipping pivot or hinge B. After a predetermined amount of tipping due to the length of the slot N3 in the link N and the relative lengths of the links, the point of application of the tipping thrust changes from the pins M<5> to the pivot M<1> of the links M. The segment G may be driven through reduction gear from a crank K or it may be driven from the engine in which case the gear G is circular so that lowering of the body does not necessitate reversal of the driving means. Fig. 4 shows means comprising a pin p<2> engaging a cam p<1> on a tail p of the link N to take the strain due to lowering of the body. A rest O is provided.
Patent GB-222742-A (GB)
Title: Improvements in the valve mechanism of sleeve valve internal combustion engines
IPC: F01L7/04
Filed: 1924-01-29
Abstract: 222,742. Hill, H. O. Jan. 29, 1924. Valves.-A rotary sleeve valve a, Figs. 1 and 2, for four-stroke engines is formed with a closed head carrying the spark plug m, and an extension formed with cooling-fins p. Three ports l formed in the valve coincide alternately with three exhaust ports o and three inlet ports n spaced around the cylinder walls. Ball bearings are provided at j. Fig. 6 shows a rotary sleeve valve, for a two-stroke engine having cooling-fins l and series of ports along its length co-operating respectively with transfer ports s, exhaust ports r, suction ports q, and transfer ports s<2> in the cylinder.
Patent GB-881962-A (GB)
Title: Improvements in or relating to can body-making apparatus
Inventor: STUCHBERY ARTHUR LESLIE
IPC: B23K37/053
Filed: 1959-01-21
Abstract: 881,962. Endless conveyers. METAL BOX CO. Ltd. Nov. 6, 1959 [Jan. 21, 1959], No. 2318/59. Class 78 (1). [Also in Group XXII] In can body-making apparatus comprising a body-forming station 1, a preheating, sideseam soldering and subsequent operation stations 2, transfer means 3 move tubular bodies from the forming station towards the preheating, soldering and subsequent stations and conveyer means receive bodies from the transfer means and move them through the preheating, soldering and subsequent stations, the conveyer means including an endless conveyer movable in one direction and a number of equi-spaced body-carriers connected to the conveyer for movement therewith and each arranged to engage and grip only the outer sides of the body to locate it for axial movement during preheating, soldering and subsequent operations on the side seam thereof and to effect release of the body following the soldering and subsequent operations. The bodies are moved axially by a pusher device from the body-making station 1 to the transfer means 3 which delivers the cans to a conveyer comprising two chains 4 passing around sprocket wheels 5, 6 driven by a chain 7. Each carrier comprises a frame 8, Figs. 2 and 3, with a body seating 9, connected to the chains 4 and carrying two lengthwise electro or permanent magnets 10. As a carrier begins to move along the lower run of the chains the outer surface of a body moved into position by the transfer means is located against the seating and is gripped by the magnets to be carried through the preheating, soldering, &c. stations. A single can may be engaged by two successive carriers, as shown in Fig. 2. Each carrier comprises pivotally-mounted ejector fingers 13 which are held in their inoperative positions by the magnetically-gripped body but which are urged to rotate by fixed cams 16, Fig. 2, beyond the soldering &c. stations to press the body out of the carrier. If electromagnets are employed, the bodies are released by controlled interruption of the magnet supply. In a modified carrier, a pair of pivoted clamp elements 18, 19, Fig. 5, are spring-urged together and are connected to a follower 17a which co-operated with a cam controlling the movement of the elements 18, 19. In a further modification, only one element is pivotally movable, the other being fixed and in another both clamps are pivoted with each carrying a cam following roller. The transfer means 3 comprises a pair of freely rotatable vertical rollers over which the bodies are fed and pairs of driven vertical rollers to engage the outsides of the bodies co-operating with freely-rotatable rollers inclined to both the vertical and horizontal within the bodies.
Patent GB-1183262-A (GB)
Title: Breathing Aid
Inventor: CAMERON JOHN DICKSON
IPC: A62B23/06
Filed: 1967-01-17
Abstract: 1,183,262. Respiratory appliances. J. D. CAMERON. 29 Dec., 1967 [17 Jan., 1967], No. 2365/67. Heading A5T. A respiratory filter for covering the mouth opening and retention between the teeth and lips comprises a perforate blank 2 carrying an air filter 5. The blank comprises two sheets of plastics material bonded or stuck together except for a central portion which is perforated and defines a pocket (4). Medicated felt or gauze 5 is removably received in the pocket. The front of the blank may be marked to represent teeth.
Patent GB-627248-A (GB)
Title: Improvements in or relating to the manufacture of expanded plastic materials
IPC: C08J9/12
Filed: 1946-01-24
Abstract: Expanded materials are made by dispersing in a thermoplastic material at elevated temperature and pressure an inert non-solvent liquid which has a critical temperature higher than said temperature and then releasing the pressure to evaporate the liquid and cause it to expand the thermoplastic.  The temperature at which the pressure is released may be lower than that at which the dispersion is formed, but must be higher than the Maarten's softening point of the thermoplastic.  The dispersion may be made by adding the liquid to the powdered thermoplastic in a vessel which is sealed and heated while stirring.  Examples describe the expanding of polystyrene (1) by means of methyl alcohol, the dispersion being formed at 170-180 DEG  C. at a pressure of about 20 atmospheres and the pressure released at 140-180 DEG  C.; and (2) by means of water dispersed at a pressure of about 10 atmospheres. Polythene is also mentioned as a suitable thermoplastic.ALSO:Expanded materials are made by dispersing in a thermoplastic material at elevated temperature and pressure an inert non-solvent liquid which has a critical temperature higher than said temperature and then releasing the pressure to evaporate the liquid and cause it to expand the thermoplastic.  The temperature at which the pressure is released may be lower than that at which the dispersion is formed but must be above the Maarten's softening point of the thermoplastic.  The dispersion may be made by adding the liquid to the powdered thermoplastic in a vessel which is sealed and heated with stirring.  Examples describe the expanding of polystyrene (1) by means of methyl alcohol, the dispersion being formed at 170 DEG  - 180 DEG  C. at a pressure of about 20 atmospheres and the pressure released at 140 DEG  - 180 DEG  C.; and (2) by means of water dispersed at a pressure of about 10 atmospheres. Polythene is also mentioned as a suitable thermoplastic.
Patent GB-102293-A (GB)
Title: Improvements in and relating to Winding-machines for Yarn and the like.
Inventor: BALL WILLIAM
IPC: B65H59/16
Filed: 1916-02-18
Abstract: 102,293. Ball, W. Feb. 18, 1916. Thread-guides; tension arrangements. - In a winding-machine, the yarn is led axially from a cheese &c. B through an adjustable balloon hook H, over a drag roller R, which is stated to take out any snarls that may have formed, and then round a tension drum D to the winding-spindle C. The roller R, which may be of wood, bone, metal, composition, &c., and be loose or stationary, is formed with outwardly flared ends bordering a cylindrical centre. The tension drum is controlled by a weight or spring. Reference has been directed by the Comptroller to Specifications 497/93, 20472/00, 19008/07, 19849/09, 19850/09, 20900/09, 23524/09, 6694/10, 14187/11, 28914/11, 12709/13, 8989/14, and 11497/14.
Patent GB-219250-A (GB)
Title: Improvements in or relating to one wheel trailers with self aligning wheel for automobiles and other vehicles
IPC: B62D63/06
Filed: 1924-01-30
Abstract: 219,250. Baert, C. E. Jan. 30, 1924. Detaching from, and attaching to, permanent hubs.-The spokes 21 of a single wheel for a trailer vehicle are carried by flanged members 60. 61 removably mounted on the hub 62 and secured thereon by a screwed ring 67 having a bevelled edge 66 which engages the correspondingly shaped edge. of the member 61.
Patent GB-386797-A (GB)
Title: Improvements in or relating to brush gear for dynamo electric machines
IPC: H01R39/38
Filed: 1932-01-27
Abstract: 386,797. Brush-holders for dynamoelectric machines. ORR, W., 327, Southey Green Road, Sheffield, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 27, 1932, No. 2526. [Class 35.] A brush-holder having one or more pins 5 provided with insulation 6 for clamping it in position, has clamping means for the pin or pins which is detachably connected to the machine frame at abutting surfaces which are parallel to the direction of adjustment of the brush box 3 and have uniform transverse serrations. In the form shown, the pins 5 are clamped between a clamping plate and a member 8 having a serrated face by bolts 7, and the member 8 is held against a plate 11, which has transverse serrations and is welded to the frame 9, by means of a bolt 12 passing through a slot in the member 8 and a hole in the frame 9.
Patent GB-130393-A (GB)
Title: Spring Suspension Device for Indicating and Registering Instruments.
Inventor: LETORD EMILE
IPC: F16F15/067
Filed: 1918-02-12
Abstract: 130,393. Letord, E. April 14, 1917, [Convention date]. Mounting and supporting indicating and recording apparatus. - In a spring support for automatic indicating and recording instruments, e.g. those employed upon motor-vehicles and aircraft. a series of spiral springs. H are fixed at one end to lugs E carried by a collar A enclosing the instrument, and at the other end are fixed to the vibratory support itself, or to a ring carried by this support. The collar A is split and is tightened on to the instrument by a bolt and nut passing through lugs. Lugs on the collar have passed through them screws E for tightening a nut F which is slightly larger than the inner diameter of the helix, and over threads upon which the coils, packed close together, are screwed by force. The other ends of the springs are similarly attached to a ring secured to the vibratory support, or to the support itself, which is cut out to allow sufficient play for the springs.
Patent GB-139270-A (GB)
Title: Improvements in and in connection with steam generator furnaces
IPC: F23M3/00
Filed: 1919-02-01
Abstract: 139,270. Cotton, R. Feb. 1, 1919. Steam-generator furnaces; grates; fire-bridges; air supply and draught, regulating.-In Cornish and other boiler furnaces, part of the furnace gases are led through conduits E, Fig. 1, at the front of the furnace to a flue F formed by fireclay slabs G. The flue F may extend to the full length of the furnace, or be extended beyond the furnace, as shown in Fig. 3. The gases escape from the flue F to the space J formed between a double fire-bridge. The bridge I is extended upwardly to reduce the area. of passage above it. The fire-bars may be arranged longitudinally, as shown, or they may be arranged transversely and supported on the slabs G forming the flue F. The centre of the bars may be higher than the ends, so that a deeper bed of fuel may be formed at the sides of the grate than at the centre. The conduits E may be provided with dampers operated by the fire-door. The back of the furnace may be bricked up or replaced by a damper such as is described in Specification 21766/06. Air inlets H operated by hand or automatically admit air to the flue F. Air may also be admitted between the fire-bridges.
Patent GB-677221-A (GB)
Title: Improvements in frequency determining circuit arrangements
IPC: H03J3/10
Filed: 1945-02-01
Abstract: 677,221. Radio receiving and transmitting apparatus. MULLARD RADIO VALVE CO., Ltd., RICHARDS, C. L., and GLAISHER, E. J. May 7, 1947 [Feb. 1, 1945], No. 2579/45. Class 40 (v). In a switch tuning arrangement, in which a frequency range is divided into major bands each subdivided into minor intervals, the selecting switches are provided with additional contact arms to permit a choice of alternative frequencies. The major bands are selected by means of the switch K<SP>2</SP> and the tuning elements Lm<SP>10</SP>, Co<SP>10</SP>, &c., adjustable trimmers C<SP>1</SP>0<SP>10</SP> &c. being provided. The selector of the switch K<SP>2</SP> is provided with a number of arms K<SP>21</SP>-K<SP>23</SP> connected to separate contacts of the element K<SP>32</SP> of the change-over switch K<SP>3</SP>. Minor frequency intervals are selected by means of the elements Co<SP>1</SP> &c. and the switch K<SP>1</SP>, which, according to the Provisional Specification, may also comprise a number of contact arms. In a combined transmitting and receiving arrangement the switch K<SP>3</SP> is provided with additional elements K<SP>31</SP>, K<SP>33</SP>, which introduce the variable condenser C<SP>3</SP> and permit of accurate alignment in the " receive " positions R<SP>1</SP>, R<SP>2</SP>. The arrangement also includes the fine tuning condenser C<SP>1</SP> provided with a centre "click" position, and the trimmer C<SP>2</SP>. Auxiliary condensers C<SP>21</SP>-C<SP>23</SP> connected to the contacts K<SP>32</SP> permit adjustment so that on operation of the switch K<SP>3</SP> the change of frequency differs from the major interval as determined by the contacts K<SP>21</SP>-K<SP>23</SP> of the switch K2.
Patent GB-287274-A (GB)
Title: Improvements in or relating to optical condensers for continuous-feed kinematograph projectors
IPC: G03B41/08
Filed: 1927-01-29
Abstract: 287,274. John, W. E., and Warmisham, A. Jan. 29, 1927. Kinematograph apparatus.- Continuous-feed projectors are provided with a fixed condenser and with one. or more con densers moving with the film The fixed condenser may be large as compared with the moving condensers, and the mountings 11 of the moving condensers 4 may be connected together by two endless bands of helically coiled wire, the bands passing through rib; which are formed on the mount ings and constitute teeth engaging slots in pulleys 15 carrying and moving the series of condensers. Two or more pictures may be simultaneously projected, and the condenser system may be used in conjunction with a moving lens compensating system as described in Specification 16200/15.