baber/WOPTO huggingface dataset:
Patent GB-1509873-A (GB)
Title: Valve assembly
IPC: F23L13/08
Filed: 1976-06-10
Abstract: 1509873 Valves; linkwork MOSSER INDUSTRIES Inc 10 June 1976 [12 June 1975] 23978/76 Headings F2V and F2K [Also in Division F4] A valve assembly for controlling high temperature gas flow has a plurality of pivoted closure elements 6, 7, 8 mounted on parallel, equispaced shafts 9, 10, 11 and linked in a manner which provides compensation for the effect of expansion of the valve housing the linking means comprising crank arms 15, 16, 17 coupled through pivoted links 22, 25 via floating links 18, 19, 20, 21. As shown the closures are provided in one flow path through a housing constructed of four channel section pieces 2. Arms 15, 16, 17 are preferably half of the length of links 22, 25; the floating links 18, 19, 20, 21 being equal in length to arms 15, 16, 17. The assembly may be adapted for multi flow path valves. An operating lever &c. may be attached to an extension of one of the shafts 9, 10 or 11.
Patent GB-1135755-A (GB)
Title: A method for reducing a non-magnetic oxidic iron ore
IPC: C22B1/10
Filed: 1965-12-02
Abstract: 1,135,755. Reducing iron ores to magnetite. PULLMAN Inc. 2 Dec., 1965 [7 Dec., 1964], No. 24255/68. Divided out of 1,135,753. Heading C1A. A non-magnetic iron ore is reduced to magnetite by contact at 800-1400‹ F. first with a gas which is reducing with respect to Fe 3 O 4  to reduce at least part of the ore to FeO and then with a gas which is reducing with respect to Fe 2 O 3  but oxidizing with respect to FeO to convert a major part of the reduced material to Fe 3 O 4 . In Fig. 1, reduction reactor 140 contains fluidized beds 142 and 144, separated by arc-shaped baffle 138. Ore is fed from line 130 into bed 142, passes through orifice 146 into bed 144, is removed via line 152, and may be quenched with water in 150. Beds 142 and 144 are fed with gases from partial oxidation furnaces 160 and 170 respectively (their composition being controlled by valves in the feed lines), and with recycle gases from line 66. The conditions in bed 142 preferably correspond to 90-100% conversion to Fe 3 O 4 , and some Fe may be formed. The gases fed to bed 144 have a composition such that oxidation beyond Fe 3 O 4  cannot occur. The ore is preheated (as described in Specification 1,135,754) first in cyclones 18 and 12, and then in fluidized bed heating zone 110 or in transfer line heatexchanger 210 (Fig. 2, not shown), effluents from zone 110 and reactor 140 being recycled to cyclone 12. Alternatively, only the effluent from 140 may be used, or the effluents from beds 142 and 144 may be recycled separately.
Patent GB-366428-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P5/74
Filed: 1931-08-28
Abstract: 366,428. Maintaining proportional speeds of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hull, J. 1. ; 1338, Dean Street, Schenectady, New York, U.S.A.) Aug. 28, 1931, Neo. 24273. Convention date, Aug. 28, 1930. [Class 38 (iii).] Induction motors 10 .. 13, driving for example the separate units of a printing press, and kept in synchronism by connecting their secondary windings 18 .. 21 in parallel, are made to operate at stable synchronized creeping speeds, by inserting resistance 59 in the secondary circuits, and at the same time superimposing an additional magnetic flux on the normal magnetic flux of at least one of the motors, so as to produce simultaneously motor and generator torques in the rotatable members. The additional magnetic flux may be obtained by injecting into the primary windings 14 .. 17, either a direct current from a generator 46 or a low frequency alternating current from an alternator 50. The directions of the injected currents, as shown by the arrows, are such that each secondary behaves as a generator with two other secondaries in its external circuit, which other secondaries are in themselves generators. These circulating currents in the secondaries give a speed torque characteristic to the motors such that the operation at creeping speeds is stable. The additional magnetic flux may be produced by circulating the direct or low frequency current through one or more secondary windings, or one or more separate exciting windings.
Patent GB-1542112-A (GB)
Title: Process for the preparation of 2-phenylethanol or derivatives thereof
IPC: C07C29/132
Filed: 1976-06-11
Abstract: The compounds of the general formula I where R<4> is alkanoyl or haloalkanoyl and the other symbols are as defined in Claim 1 are prepared by reacting a compound of the general formula II where Hal is a halogen atom with an alkanecarboxylic acid or with a haloalkanecarboxylic acid, respectively. The corresponding compounds of the general formula I where R<4> is a hydrogen atom are obtained by subsequent alkaline hydrolysis. The process is particularly suitable for preparing dimethylbenzylcarbinol and its esters. <IMAGE>
Patent GB-388755-A (GB)
Title: Improvements in or relating to short wave radio and other high frequency receivers
IPC: H04B1/16
Filed: 1931-08-29
Abstract: 388,755. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and GILL, E. W. B., Merton College, Oxford. Aug. 29, 1931, No. 24359. [Class 40 (v).] An ultra - short wave simple reaction receiver comprises a thermionic valve 1 with its plate 2 connected to its grid 6 by a pair of series inductances 3, 5 separated by a capacity 4 and coupled to, or constituting, a high-frequency pick-up circuit, and reaction is controlled by varying the emission from the cathode 7 up to a point prior to that at which the valve oscillates. The inductances consist of telescopic rods slid into one another to vary the inductive value. A positive potential is applied to the grid 6 by a battery 8 with its negative terminal connected to the cathode, telephones 9 or other output apparatus is connected between the anode side of the variable condenser 4 and the cathode, and the temperature of the cathode is adjusted by rheostat 10. When an aerial external to ,the circuit is used, the aerial is coupled at a potential node on the inductances 3, 5. Reception may be effected at a harmonic of the received wave.
Patent GB-443230-A (GB)
Title: Improvements in or relating to the production of synthetic resins suitable for the manufacture of dentures
IPC: A61K6/891
Filed: 1934-08-23
Abstract: Synthetic resins suitable for the manufacture of dentures are prepared by reacting one molecular proportion of phenol with at least one and a half molecular proportions of formaldehyde (or its equivalents) in the presence of a basic catalyst and prior to the gelation stage retarding polymerization or gelation whilst permitting condensation to continue by adding sufficient quantity of a strong mineral acid such as sulphuric acid to neutralize the base, a quantity of a weak acid such as phosphoric or oxalic acid to impart an acid reaction to the mass, dehydrating the mixture under a vacuum and finally heating under vacuum or atmospheric pressure to yield a plastic solid product.  The basic catalyst, which may be a compound of an alkaline earth metal, and the strong p  acid are so chosen as to yield a water insoluble salt.  In an example, phenol and formaldehyde are condensed in the presence of barium hydroxide and the mixture, after being dehydrated under a vacuum, is neutralized with sulphuric acid and made acid with phosphoric, lactic or boric acids and the product, with or without dyes or pigments, heated and ground to yield a moulding powder. Dentures are made from the powder in a plaster of Paris mould. Specification 359,424 is referred to.
Patent GB-919806-A (GB)
Title: Paint changing equipment
IPC: B05B12/14
Filed: 1960-07-13
Abstract: <PICT:0919806/III/1> Equipment for changing the paint to be sprayed in an electrostatic paint spraying plant comprises a paint distributer head 16 and a paint pump 8 mounted on a common bracket 11, supported by insulators 12, the distributer head being connected by insulating shafting 23 to drive means including a gear unit 25, associated with a potentiometer 26, and a motor 28, and the pump 8 being connected by insulating shafting 6 to drive means comprising a low speed motor 1 coupled to a high speed motor 5 by a free-wheel overrunning clutch 4.  The distributer head 16 comprises a multi-way valve and the potentiometer 26 is associated therewith for remote control purposes.  The pump 8 can be driven at lower variable speeds by regulatable drive means 1, 2, or at a high constant speed by the motor 5.  The distributer head 16 comprises a casing with a number of radial channels each communicating with a nipple 21, and a valve plug which enables any desired channel to communicate with a delivery nipple 42, which is connected with the spraying device.  One of the nipples 21 is connected to a tank of a flushing medium, and the remainder to paint storage tanks.  An electrical control unit is provided for setting the position of the head 16 and for controlling the sequence of changing operations.  Thus, after pre-selection of a different lacquer, the head 16 is automatically adjusted by the servo-motor 28 to admit flushing medium, the pump 8 is driven at high speed by the motor 5, the head 16 is registered to a fresh paint admission pipe while the pump is stationary, the motor 5 is operated briefly to drive the pump at high speed and then switched off, and the pump is finally driven at normal, low speed by the regulatable drive means 1, 2 through the over-running clutch 4.
Patent GB-534225-A (GB)
Title: Improvements in or relating to signal devices for toy or model railways
IPC: A63H19/34
Filed: 1939-08-25
Abstract: 534,225. Toy railways. SMITH, W. R. Aug. 25, 1939, No. 24512. Convention date, Aug. 27, 1938. [Class 132 (iii)] [Also in Group XI] A signal for toy railways comprises means adapted to transmit light from a concealed source of light to a visible signal point. Light from a bulb 25 passes through a red or green screen 26 or 27 according to the position of slide 36 and thence through a rod 12 of transparent or translucent material, such as glass or synthetic resin, to cause the end 17 to glow inside the hood 21, the intermediate exposed portion of the rod being coated with an opaque substance such as paint. A train running in the direction 82 closes switch 80, at point 57, Fig. 5, to energize coil 28 which moves plunger 34 and slide 36 to the left to change the signal to red and to move arm 35 away from contact 45 to break the lead to the insulated section 46 of the middle rail. When the train proceeds to point 58 it energizes coil 29 to move plunger 34 to the right to change the signal to green and re-establish the lead to section 46. A manual switch 63, 64 can be inserted as shown in Fig. 4. A modification is shown in Fig. 7 in which an arm 66 carrying red and green glasses 74, 75 is tilted to right or left by impulses through coils 69, 70. The system is applicable to track cross-over points.
Patent GB-332427-A (GB)
Title: Improvements in and relating to gratings, particularly applicable for flooring and like purposes
IPC: E04C2/42
Filed: 1929-08-13
Abstract: 332,427. Law, J. A., (Irving Iron Works Co.). Aug. 13, 1929. Gratings; road foundations.-Gratings or gridlike panels to be laid on cross beams to form open surfaces of roads and for reinforcing concrete roads, consist of interlocked notched longitudinal and transverse bars 1, 2. The gratings are connected end to end by overlapping the projecting bars 1<a> of one panel with the bars 1 of the next panel and securing them by the transverse bars 4, which have notches of double width. The bars 1<a> are preferably offset, and fastenings such as bolts 6 may also be used.
Patent GB-749473-A (GB)
Title: Fuze for projectiles
IPC: F42C15/22
Filed: 1953-09-08
Abstract: 749,473. Projectile fuzes. SOC. ANON. BELGE DE MECANIQUE ET D'ARMEMENT. Sept. 8, 1953 [Sept. 15, 1952], No. 24861/53. Class 9(1) The percussion fuze shown in Fig. 1 has a body 1 projecting from a fuze carrier 2, a spring 3 being interposed between bearing surfaces on the body and carrier. Fixed in the body 1 is a hard head 4, e.g. of tungsten carbide, with radial cutting edges and integral with a striker 5 spaced from a detonator 6. A spacing member 11 bearing on the detonator is held by a spring 16 and locked by balls 7, 8 placed in oblique housings 9, 10 in the body 1. The body 1 is locked in the fuze carrier by balls 12, 13 mounted in housings 14, 15 in the carrier. Forward displacement of the body 1 relative to the carrier 2 is prevented by a ring 17 and a fluid-tight annular packing, e.g. rubber, leather, or cardboard is interposed between the forward end of the carrier and the fuze body 1. When the projectile is at rest and in a horizontal position the balls 7, 8, 12, 13 take up the positions shown in Fig. 1 locking both the detonator and the fuze body. Arming of the fuze only takes place when the projectile is rotated at sufflicient speed for centrifugal force to move both the balls 7, 8 and the balls 12, 13 outwards in their housings, the fuze body and detonator are then freed and on impact the detonator impinges on the striker. Reference has been directed by the Comptroller to Specification 621,931.
Patent GB-1132899-A (GB)
Title: Process and means for improving thermal efficiencies of steam-raising boilers
Inventor: HALLIWELL WALTER
IPC: F22G5/00
Filed: 1966-06-03
Abstract: 1,132,899. Coating tube walls for furnaces. MAGNESIUM ELEKTRON Ltd. 6 Jan., 1967 [3 June, 1966], No. 24873/66. Heading F4B. In a process for operating a steam-raising oilfired boiler, magnesium in the form of particles which will pass a 1/16 inch sieve and will be retained on a 100 B.S. sieve is injected into the boiler combustion chamber in a direction between 30 below and 60 above the horizontal and in a direction-as seen in plan-making an angle between 45 and 135 degrees with the direction in which fuel is injected, in such a manner that a heat reflecting layer of magnesium oxide is maintained on the surface of a predetermined section of the combustion chamber wall tubes. In the embodiment shown, magnesium is injected on a section comprising the four walls of the boiler between the planes indicated at 25 and 26, by means of injection nozzles 20, 21 and (22), (23) (Fig. 2, not shown). This section includes the upper three of the four banks of burner nozzles 18.
Patent GB-1175176-A (GB)
Title: Improvements in Closures for Containers.
IPC: B65D51/14
Filed: 1968-05-24
Abstract: 1,175,176. Caps for containers. CONTINENTAL CAN CO. Inc. 24 May, 1968 [7 June, 1967], No. 24984/68. Heading B8T. A composite tamperproof closure for hermetically sealing and subsequent re-application to a container comprises a metal cap 21 having a gasket 42 which sealingly engages the rim 15 of a container and the lower edge of which is held in a shoulder 26 in the skirt of a plastics fitment 20, lifting means being provided in the form of a ring 30. Fitment 20 has a portion 25 on its skirt, to engage with a shoulder 18 on the container, holding the cap in position. The ring 30 in the upper face of the fitment is connected to the outer part by two frangible bridges (31, 32), Fig. 3 (not shown), and a hinging portion (33). On lifting the ring, panel 21 is raised from the container, and when the closure is re-applied the broken bridges (31 32) offer tamperproof means.
Patent GB-1063675-A (GB)
Title: Electric rotary switch
IPC: H03M1/00
Filed: 1965-06-14
Abstract: 1,063,675. Selective signalling. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 14, 1965 [July 2, 1964], No. 25038/65. Heading G4H. [Also in Division H2] A rotary switch providing conversion from decimal to binary code has permanent magnets 20, 22... 42 on a rotor dish 16 and sealed magnetic contact devices 4, 6 . . . 14 on a stator 2. The contact devices are arranged in two circular tracks and the magnets are mounted so as to influence the contacts in one or both tracks. Stops 51, 52 limit the rotor movement between positions 0, 1 ... 9 and in each position the rotor is indexed by a spring-urged ball 46 (Fig. 5, not shown), engaging a corresponding groove 48. The contact devices are connected to give the binary signals with the addition of a " parity " signal when an even number of signals would otherwise appear in the output. Reference is made to series and parallel connection of the contact devices providing AND and OR arrangements.
Patent GB-406064-A (GB)
Title: Improvements in and relating to railway track ballast tamping machines
IPC: E01B27/16
Filed: 1932-09-08
Abstract: 406,064. Tamping railway ballast. SCHEUCHZER, A., 11, Rue Neuve, Renens, Vaud, Switzerland. Sept. 8, 1932, No. 25039. Convention date, Sept. 8, 1931. [Class 104 (ii).] A tamping- machine comprises one or more pairs of tools 10, 10<1> mounted on a vertically adjustable frame 2 carried by a truck 1 running on the rails 12. The tools are pivoted on nuts 25 mounted on a screwed spindle 24 so that they can be relatively adjusted. They are oscillated about their pivots by a rotating shaft 14 by a motor 5 on the truck and carrying eccentrics 15 which reciprocate rods passing through the upper ends of the tools and carrying springs 19 abutting on the tools. The Specification as open to inspection under Sect. 91 comprises also the following modifications. The tampers are carried by levers 37a, Fig. 5 (Cancelled) pivoted at 41 on levers 37b, which are pivoted at 44 on horizontal slides connected by rods 40 to the ends of a rocking lever 39 keyed on a spindle 38 carrying a control arm 50. The end of the arm 50 engages a pin 51 on a screwed rod which may be moved axially by a rotary nut 53 to swing the arm about the axis of the shaft 38. Thus turning the lever 39 and moving the levers 37a, 37b to the dotted positions after the tamping has been finished. The levers 37a are actuated by eccentrics 15 and rods 43, and when the resistance to the tampers prevents them from moving, the levers 37b absorb the movement of the rods 43 against the pressure of dashpots 48. In another form the upper parts of the levers 37a are turned inwards, the rods 43 being vertical. In another form, the tamper levers are connected by linkwork to the piston of a cylinder containing liquid, so that when the tampers can no longer move, the movement of the actuating mechanism is absorbed by the piston, which opens a spring-controlled valve in the cylinder. The machine may be mounted in steel rings so that it may be rolled off the track when necessary. This subject-matter does not appear in the Specification as accepted.
Patent GB-1007173-A (GB)
Title: Encapsulated elements
IPC: B30B11/34
Filed: 1962-06-29
Abstract: An encapsulated element comprises a core of compacted powder of carbonaceous material and a particulate loading of metal or of nuclear fuel material distributed throughout the compacted powder of the core, the core having its outside surface covered by a compacted powder encapsulation of carbonaceous material free from said loading. The inside surface of the encapsulation is in intimate contact with and conforms precisely to the outside surface of the core, but there is no definite delineation between the encapsulation and core.  The core may be made of natural or artificial graphite, purified or unpurified; petroleum coke, calcined or uncalcined; naturally occurring carbonaceous materials such as coal or lignite; mixed with ceramic materials or powdered metals with or without a binder.  The binders may be coaltar pitches, petroleum pitches, resin binders, lignite, lignin or its derivatives.  The nuclear fuel material may consist of particles of any uranium, plutonium or thorium compound which does not react with carbon at a temperature of not less than 900 DEG  C.  The nuclear fuel particles may be present with or without a carbonized coating, e.g. of pyrolytic carbon or a coating of aluminium oxide. After sizing, the ingredients of the core and encapsulation mixes are blended at or above room temperature. The blends are then crushed to the appropriate particle size for forming the core and encapsulation.  The method of making the encapsulated element comprises forming a shell of the encapsulating mix which is open at the top; charging the core mix into the shell; shaping the core mix in the shell; closing the top of the shell by bringing a quantity of the encapsulating mix over the entire top of the shell; compressing the materials of the shell and core into a compact unitary element in which the material of the shell intimately contacts the core and performing a heating operation on the element at a temperature not less than 900 DEG  C.  The element may be spherical in shape.
Patent GB-659974-A (GB)
Title: Improvements in or relating to sheet-metal roller bearing cages
IPC: F16C33/54
Filed: 1949-09-29
Abstract: 659,974. Bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Sept. 29, 1949, No. 25084. Convention date, Oct. 13. 1948. [Class 12 (i)] Indentations 10 cause local rigid projections 9 at the middle of the roller pocket defining parallel-sided cross-bars 8 of radial load rollerbearing sheet - metal cages 4a, 4b. The projections 9 retain the barrel - shaped rollers 1a, 1b in contact with a race ring, and the cross-bars 8 are sufficiently resilient to permit the rollers to be sprung through the cage pockets 6 by a tool (not shown) inserted through notches 11 in cage-centring flanges 5.
Patent GB-172381-A (GB)
Title: Improvements in or relating to apparatus for use in tempering and annealing
IPC: C21D9/00
Filed: 1920-08-31
Abstract: 172,381. Lavaud, D. S. de, Clark, B. F., and Baines, C. W. Aug. 31, 1920. Generating by hot metal and the like.-In means for utilizing waste heat given off by heat-treated articles during cooling, heat utilizing means, such as a steam generator, is provided in the cooling chamber to which the articles are passed from a heating chamber. Means are also provided for passing the waste gases from the heating chamber during the period when articles are not being treated, directly into the cooling chamber wherein their heat is absorbed by the heat utilizing means. In the apparatus shown, the heating chamber A communicates by means of a passage A<2> with the cooling chamber B in which is situated a steam generator b. The articles are passed through the chambers A and B on rails D by a conveyer C and are delivered to and through a quenching or coating bath J. Situated beneath the cooling chamber B is a passage M communicating with vertical shafts Q leading to the cooling chambers and with regenerators beneath the heating chambers and connected therewith by vertical shafts A<3>. Dampers N and 0 adapted to be raised and lowered alternately by a wheel P are provided in the passages M on each side of a tunnel L leading to a smoke stack. Normally the damper 0 is down and the damper N raised so that when articles are being treated, the hot gases from the heating chamber pass down the shafts A<3>, through the regenerators a and away to the stack through the passage M. When articles are not being treated, the damper N is lowered and damper 0 raised so that the gases from the furnace pass through the cooling chamber wherein their heat is absorbed by the heat-utilizing means b, down the shaft Q and away to the stack through the passage M.
Patent GB-1275337-A (GB)
Title: Anthraquinone dyestuffs
Inventor: PETERS KARL-HEINZ
IPC: C09B1/516
Filed: 1970-05-26
Abstract: 1275337 Laminates FARBENFABRIKEN BAYER AG 26 May 1970 [3 June 1969] 25174/70 Heading B5N [Also in Divisions C3 and C4] In Example 15 papers coloured by the pigment 4,8 - bis - (2,5 - dichloro - benzoylamino) - 1,5- dihydroxy - anthraquinone are impregnated with a 55% strength solution of a ureaformaldehyde in n-butanol and stored at 140‹ C. to form violet laminate papers.