baber/WOPTO huggingface dataset:
Patent GB-1211909-A (GB)
Title: An explosive device
Inventor: LOO VICTOR VAN DE
IPC: F42B23/08
Filed: 1968-04-17
Abstract: 1,211,909. Explosive charges. POUDRERIES REUNIES DE BELGIQUE S.A. 17 April, 1968 [18 April, 1967], No. 18171/68. Heading F3A. Explosive charges which can be used individually or as part of an assembly of such charges, comprises a substantially prismatic casing 1, e.g. of plastics material, with a depression 2 in one face, such that, on juxtaposing a plurality of the charges, the depressions define a cavity for housing appropriate munition or pyrotechnic devices such as a mine or detonator. Several assemblies are described (Figs. 4, 6 and 8, not shown). The charges can be assembled in a tray and the munition or pyrotechnic device covered with a lid. The casing is provided with a closure plug 7 and contains two inserts 12 and 13 connected with a tube 14 surrounded by a relay charge 17. A safety fuse (23, Fig. 9, not shown) as described in Specification 1,189,412 can be screwed into one of the inserts so that a detonator (25) extends into the tube 14. If a series of charges are required, a common fusecord can be threaded through the tubes 14 of each charge and secured therein by conical clamps (36, Fig. 12, not shown) screwed into the inserts 12 and 13. In another application (Fig. 10, not shown), a handle (27) containing a relay (28), and a fuse (29) containing a friction plug (30) connected with a pull-wire (31), is screwed into one of the inserts 12 or 13, and the charge used as a hand grenade. In a further application, Fig. 14 (not shown), one wall of the casing may be flush with a magnet housed within a dovetailed groove (39) formed in the wall.
Patent GB-133810-A (GB)
Title: An Improved Tea or Coffee Pot.
Inventor: JONES DAVID HALL
IPC: A47G19/14
Filed: 1918-11-06
Abstract: 133,810. Jones, D. H. Nov. 6, 1918 Addition to 16437/15. Pots.-In a teapot such as is described in the parent Specification, in which the lid and strainer are held in place by projections on the lid or strainer passing through slots in the mouth of the pot or. spout, cam-shaped grooves are formed in the pot which which the projections engage, so that on turning the lid or strainer it is locked in position. Alternatively, the projections may be formed on the pot and engage with cam-shaped surfaces on the lid or strainer, The latter arrangement is shown in Fig. 2, projections E, E<1> on the pot passing through slots F, F<1> in the lid and strainer respectively and engaging with cam-shaped sur. faces G, G<1>. A supplementary strainer may be provided fitting inside the ordinary strainer and' held in place by it.
Patent GB-357137-A (GB)
Title: Coin-freed apparatus for dispensing petrol and other liquids
IPC: B67D7/16
Filed: 1930-06-13
Abstract: 357,137. Coin-freed liquid-dispensing apparatus. GUSTAFSSON, K. G. H., Skarby, Sweden. June 13, 1930, No. 18218. [Class 37.] C o i n action, weight ; coin-slit closing-d e v i c e s. -A coin - freed apparatus for dispensing petrol and other liquids comprises a cabinet 1, Fig. 1, containing a tank 2 from which liquid is forced by a pump 3 to a measuring vessel 4 provided with an overflow pipe 23 and a valve 10 through which the vessel 4 is emptied by a pipe 7 and hose 70. When a supply is desired, the purchaser by a handle 19 moves a slide 17 having a slot 22 which is brought into register with a coin insertion slot 21. This movement of the slide closes the valve 10 which is locked in its closed position by the arm 36 of a lever 35, 36 engaging over a lug 37 on the valve rod 11, a slotted connection 110 being provided between the valve 10 and rod 11 to allow the lug 37 to pass under the arm 36. A coin is now inserted and passes down a shoot 20 to tilt a pawl 40, 41 out of engagement with a toothed sector 39 on a shaft 8 which is provided with a handle 9 for actuating the pump 3. A bevelled end 47 of the pawl escapes over and rests on a bevelled weighted end 48 of a lever 42, 43 which, through a lever 44, 45 and a link 38, holds a balance lever 24, 25 up against a stop 52. An overflow receiving bucket 26 having a small discharge opening 27 is suspended from the arm 24 by a rod 30 and is disposed in an open vessel 28 communicating with the tank 2 by a pipe 29. The purchaser operates the pump 3 until the surplus liquid flows from the vessel 4 to the bucket 26 which is thereby depressed so that stops 31, 32 on the rod 30 tilt a lever 33, 34, the arm 34 tilting the lever 35, 36 and moving the arm 36 out of the path of the lug 37 on the valve.rod 11. The depression of the bucket also tilts the lever 42, 43 allowing the pawl 41 to engage the sector 39 and prevent further operation of the pump. By actuating the handle 19 the valve 10 is opened to discharge the liquid, but the coin slot 21 is closed and prevents the insertion of a coin while the vessel 4 is emptying. Indicators.-A float 60 indicates by a pointer 54 working over a scale 55 the level of liquid in the tank 2. Tokens of special form.-Instead of coins, tokens ribbed as shown in Fig. 7 may be employed, the coin-slit being correspondingly shaped. The tokens would be purchased at a price corresponding to the price of the liquid.
Patent GB-662375-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F28G9/00
Filed: 1949-07-11
Abstract: 662,375. Thermal regenerators. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. July 11, 1949 [July 9, 1948], No. 18250/49. Class 64(i) In a rotary regenerator having a cylindrical rotor divided by partitions into compartments containing closely spaced heat transfer plates 16 parallel to the direction of fluid flow, each plate is formed over substantially its entire area with a multiplicity of perforations 30, the metal from which remains attached to the body of the plate along at least one edge of each aperture and is bent back to form fins 31. The perforations allow fluid to pass from side to side of the plates and so avoid their rupture during cleaning by jets of highpressure steam or other fluid. The apertures may be trapezoidal. A stack of plates may be bonded together, e.g. by brazing the fins to adjacent plates. A soot blower with one or more rotating nozzles is located above the rotor.
Patent GB-888939-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F23M20/00
Filed: 1959-05-29
Abstract: 888,939. Furnace linings. GOULD, A. K. May 4, 1960 [May 29, 1959], No. 18340/59. Class 51(1). The fire tube 11 of a Lancashire or similar type boiler is lined with insulating refractory blocks 20 over a length beyond the fire grate area sufficient to enable combustion to be completed. The lining is formed of blocks 21, each forming the quadrant of a cylinder and having a torque at one longitudinal edge and a complementary groove at the other edge. A number of rings each comprising four interlocked blocks 21 are slid into the fire tube, and rest in place without cement.
Patent GB-1453838-A (GB)
Title: Rotor assemblies
IPC: F01D5/30
Filed: 1973-04-17
Abstract: 1453838 Bladed rotors LUCAS INDUSTRIES Ltd 11 March 1974 [17 April 1973] 18408/73 Heading F1T Rotor blades 17 are mounted on a shaft 11 by two discs 14, 15 urged together to clamp the roots 16, of the blades, projections 25 on the blade roots engaging at their planar ends 32 similar planar surfaces 31 in non-complimentary grooves 28 in the discs to prevent relative axial movement, and at surfaces 26 a curved surface 29 of the grooves 28 to prevent radial movement due to centrifugal force. The discs are urged together by springs 22 acting between the shaft and a silicon nitride sleeve reacting on the discs. Surfaces 26 and 29 are curved about the shaft axis to provide line point contact. A projection at the bottom of root 16 of each blade engages a parallel-sided groove in the discs to prevent relative circumferential movement.
Patent GB-336581-A (GB)
Title: Improvements in feeding devices for granular and like materials
IPC: B02C25/00
Filed: 1929-06-14
Abstract: 336,581. Lykken, H. G. June 14, 1929. Feeding-devices for granular and like materials. - A feeding device operated continuously for feeding loose material into a chamber from a hopper located laterally of the chamber is provided with feeler elements 7 adapted to contact with the material as it is fed from the hopper to the chamber to alter the stroke of a feed member 6. The material from the hopper 5, Fig. 1, is fed forwardly by a stepped tray or member 6 reciprocated by an oscillating arm 61 fired to a shaft 54 to the end of which is fixed an arm 53, Fig. 3, adapted to be oscillating arm 61 fixed to a shaft 54 to the end from the mill shaft 2<a>. The arm 53 is bifurcated and carries a pivoted crosshead 51 through which slides the eccentric-rod 50, a spring 64 being placed between the crosshead and eccentric strap which spring is stressed through a sleeve 63 and nut 63<a> on the end of the eccentric-rod. The end of the bifurcation carries a cross-head 55 through which passes a screwed rod 57 connected to an arm 59 fixed to a shaft 60 to which a feeler arm 7 is attached. The feeler bears on the surface of the material fed to the mill and its position is adjusted by nuts 65<a>, 66<a> and sleeves 65, 66 on the rod 57. Rotation of the eccentric 45 oscillates the arm 53 and through it the arm 61 attached to the feed tray 6, the arm 69 is also oscillated and the feeler arm 7 moves toward and away from the pile of material pushed into the mill by the tray 6. If too much material is pushed forward the arm 7 strikes the top of the pile and retains the arms 61, 59, 53 and rod 57 stationary so that movement of the eccentric only compresses the spring 64. The stroke of the feed-tray is thus shortened or stopped until the accumulation of material under the feeler 7 is dispersed.
Patent GB-947889-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H23/16
Filed: 1961-05-19
Abstract: 947,889. Snap-action switches; contact members for switches; terminals. C. W. MORLE. (Cutler-Hammer Inc.). May 21, 1962 [May 19, 1961], No. 18429/61. Headings H2B and H2E. In a two-pole single throw switch spring contact members 20, 21 are shaped to closely engage the upper edges of end walls 25, 26 of the switch body 10, and a portion of each contact member is secured to the outer surface of each end wall by a screw 33 which also serves to attach a terminal wire (not shown) to the contact member. Projections 30, 31 on the end walls locate in the slots 27, 28 in the contact members. A pivoted operating lever 15 engages an over-centre spring 17 bearing on a projection 24 of a longitudinally-sliding insulating block 22 which carries a contact 23 bridging contact members 20, 21.
Patent GB-224862-A (GB)
Title: Rotary pump for liquids or gases
IPC: F04C2/344
Filed: 1924-08-01
Abstract: 224,862. Maroger, S. Nov. 12, 1923, [Convention date]. Worm pumps.-A drum 5 is eccentrically mounted in a casing 1 and has a helical groove 9 in its periphery wherein slides radially a helical band 8 of the same diameter as the pump casing 1. The helical band 8 is prevented from moving longitudinally bv end plates 10 on the drum. One or more helical bands may be provided and the bands may be in sections. The drum may comprise a number of discs, Fig. 5, with oblique grooves 12 in which slide vanes 11 the vanes and grooves of successive discs being arranged in a general helical form.
Patent GB-242336-A (GB)
Title: An improved process for the treatment of leucite and other similar complex silicatescontaining potassium
IPC: C05B11/08
Filed: 1924-08-02
Abstract: Alkali metal compounds obtaining from complex silicates Complex silicates containing potassium, such as leucite are treated with phosphates of the alkaline earth metals, calcium carbonate and sulphuric acid, in the presence of water, to recover the potash values and to produce a fertilizer.  The sulphuric acid may be replaced by hydrolizable sulphates as nitre cake.  A product containing water soluble potash is favoured by increasing the quantity of calcium carbonate and a water-insoluble and citric acid soluble potash by decreasing the quantity of calcium carbonate.  A product containing water-soluble phosphates is favoured by relatively low reaction temperature and water-insoluble but citric acid soluble phosphates by increase in temperature.  The water soluble product, given as potassium sulphate and phosphate in the examples, is neutral and free from iron and aluminium, and may be removed by lixiviation to leave a water-insoluble but citric acid soluble product.  The calcium phosphate used may be mineral superphosphate, bone meal or ash, precipitated phosphate or mixtures of these.  In the examples African and Florida phosphate rock containing calcium carbonate are used.  Sufficient calcium carbonate to decompose any aluminium sulphate formed is used.  Peat or other absorbent organic material may be added.  Potassium aluminium phosphates insoluble in water and soluble in weak citric acid solution are said to be formed.ALSO:Complex silicates containing potassium, such as leucite, are treated with phosphates of the alkaline earth metals, calcium carbonate and sulphuric acid, in the presence of water to recover the potash values in the raw materials also to produce a fertilizer.  The sulphuric acid is dilute and may be replaced by hydrolizable sulphates as nitre cake.  A product containing water soluble potash is favoured by increasing the quantity of calcium carbonate and a water insoluble and citric acid soluble potash by decreasing the quantity of calcium carbonate.  A product containing water soluble phosphates is favoured by relatively low reaction temperatures and water insoluble but citric acid soluble phosphates by increase in temperature.  The water soluble product, given as potassium sulphate and phosphate in the examples, is neutral and free from iron and aluminium and may be removed by lixiviation to leave a water insoluble but citric acid soluble product.  The calcium phosphate used may be mineral, superphosphate, bone meal or ash, precipitated phosphate or mixtures of these.  In the examples African and Florida phosphate rock containing calcium carbonate are used.  Sufficient calcium carbonate to decompose any aluminium sulphate formed is used. Peat or other absorbent organic material may be added.  Potassium aluminium phosphates insoluble in water and soluble in weak citric acid solution are said to be formed.
Patent GB-860352-A (GB)
Title: Improvements in wheeled castors
IPC: B60B33/04
Filed: 1958-06-10
Abstract: 860,352. Castors. FLEXELLO CASTORS & WHEELS Ltd., and WHITAKER, N. April 13, 1959 [June 10, 1958], No. 18540/58. Class 52(1). A castor has a wheel fork 1 pivotally mounted for rearward and upward movement within a housing 3 containing a rubber block 5 interposed between the crown 6 of the wheel fork and the roof 7 of the housing, loading of the castor causing compression of the block. In a modification, housing 3 contains an inner housing 11 and the crown 6 of the wheel fork is forwardly and downwardly inclined. The inner stem 4 revolves in a fixed outer stem 14 having a housing 15 for ball bearings 16 and hardened washers 17.
Patent GB-596122-A (GB)
Title: Improved axial flow pumps and extrusion apparatus
IPC: F04C2/16
Filed: 1945-07-19
Abstract: 596,122. Extrusion and injection-moulding apparatus. MUNRO, R. July 19, 1945, Nos. 18561 and 26637. [Class 87 (ii)] [Also in Group XXVI] An axial flow extrusion apparatus of the worm type Fig. 2, comprises a rotor 10 surrounded by a metering sleeve 21, the rotor being formed with at least one fluid-feeding thread 22, the pitch of which increases from a minimum at the fluid inlet end and to a maximum at the fluid outlet end, the flow of fluid from the pump inlet 1A to the pump outlet 6 taking place through the metering sleeve 21 in the groove or grooves between the turns of the rotor thread or threads 22. A thread with progressively increasing depth may replace or be incorporated with the thread of increasing pitch. Longitudinal vanes may be associated with the metering sleeve to prevent turbulence within the casing. The sleeve 21 is adjusted axially in the casing 1 by means of two screwed rods 26, 27 so that the sleeve may co-operate with different sections of the rotor thread or threads to vary the pump output without varying the speed of the rotor. In a modification, Fig. 8, the rotor 44 has an internal thread 45 and is fitted with an internal metering plug 46. Either the rotor or the metering means is adjustable relative to the casing either manually or automatically in accordance with the output pressure. In a further modification, Fig. 15, intermeshing rotors are used to prevent back flow and the metering means may consist of at least one fixed part and one or more moving parts. End thrust on the rotor may be balanced by discharge pressure acting on piston 94, Fig. 12, in space 93, via port 92, an axial hole in the rotor shaft, and ports 90, 91.
Patent GB-758002-A (GB)
Title: Substituted piperidines
Inventor: MITCHELL WILLIAM
IPC: C07D211/46
Filed: 1953-07-03
Abstract: The invention comprises esters of the general formula <FORM:0758002/IV(a)/1> and water-soluble salts thereof, where R represents the methyl or ethyl radical, R1 represents hydrogen or the methyl radical, and R2 represents the methyl or phenyl radical.  The esters may be prepared by the usual methods used for ester formation, particularly by heating a hydrochloride of the required N-alkylpiperidin-4-ol with the required acid chloride and adding a base.  A suitable water-soluble salt is the hydrobromide salt.  In the examples N-methyl (and ethyl)-piperidin-4-yl tiglate, and N-methyl-piperidin - 4 - yl cinnamate, a  - methylbutyrate and 2-phenylpropionate, and the corresponding hydrobromide salts are prepared.  The free bases may be regenerated from the hydrobromide salts prepared by the addition of excess ammonia.
Patent GB-276943-A (GB)
Title: Improvements in machines for breaking coal or other material
IPC: B02C1/12
Filed: 1927-07-14
Abstract: 276,943. Norton, B. July 14, 1927. Reciprocating picks. - In machines for breaking coal &c. and of the kind in which the coal is carried on a conveyer under reciprocating picks, the conveyer is supported beneath the picks by a resiliently-mounted anvil so that the conveyer and anvil can yield when the picks encounter anv hard substances on the conveyer. As shown, the anvils 1 are supported on springs 2 which abut against a fixed frame 3 and hold the anvils against stops 4. One of the shafts 7 of the drums 6 carrying the conveyer 5 is mounted in spring-pressed bearings 8 so that it can move inwards when the conveyers and anvils are depressed. The picks 13 are shown carried by a parallelogram frame 11, 12, but they may be operated independently.
Patent GB-986718-A (GB)
Title: Synthetic yarns of trilobal filaments
IPC: D01F6/60
Filed: 1963-05-10
Abstract: A continuous-filament synthetic yarn consists of a number of species of trilobal filaments, the individual filaments within each species having substantially the same modification ratio but the species differing from each other in respect of the ratio, with the distribution of the ratios of all the filaments in the yarn being such as to give a standard deviation of at least 0.08, a skewness coefficient from -0.7 to +0.7 (i.e. not too unsymmetric a distribution) and a kurtosis coefficient not greater than 4 (i.e. not a sharply peaked distribution).  The cross-section of the filaments may be concavely or convexly trilobal.  The modification ratio is the ratio of the radius of the circumscribed circle to that of the inscribed circle of the cross-section of the filament.  The yarn-for example nylon-is extruded from a spinneret, drawn and given a hot relaxation treatment.  Examples of various yarns are given, with the modification ratio, tip radius, and arm angle of each filament. The use of these yarns as a fabric is stated to reduce or remove the visibility of yarn junctions.  Specifications 924,087, 924,090 and 986,719 is referred to.
Patent GB-736181-A (GB)
Title: Improvements in methods of and apparatus for coating with metals
IPC: C23C16/455
Filed: 1953-07-06
Abstract: 736,181. Coating with metals. COMMONWEALTH ENGINEERING CO. OF OHIO. July 6, 1953, No. 18715/53. Class 82 (2). Objects to be coated with metal are heated to the decomposition temperature of a metalbearing gas which is circulated in closed circuit, directed in turbulent flow against the object, and held at a temperature below the decomposition temperature, except when in contact with the object, by cooling means placed in the path of the gas flow. A housing 10, having a gas inlet 11 and outlet 12, encloses a heater 16, on the top plate 17 of which objects to be coated are placed, a fan 18, driven by motor 19, a gas cooler 20 and a partition 13 extending from front to back of the housing and below and above which the gas circulates. A mixture of nickel carbonyl and carbon dioxide, maintained at 125‹ F. by the cooler 20, may be used for nickel plating copper discs heated to 400 ‹ F. on the plate 17. The metal bearing gas may be a carbonyl, nitroxyl compound, nitrosyl carbonyl, hydride, metal alkyl or halide; carbon dioxide, helium, nitrogen, hydrogen and the gaseous product of controlled burning of hydrocarbon gases free of oxygen, may be utilised as carrier gases. Moving objects may be heated by passing over resistance heaters, by infra-red light, or by the passage of current therethrough. Prior to coating, the objects may be cleaned electrochemically in alkali or acid electrolyte or by pickling in hydrochloric, sulphuric and/or nitric acids. Reference is made to coating with nickel, cobalt, tungsten, molybdenum and their alloys.
Patent GB-220779-A (GB)
Title: Improved means for the electro-aviatic exploration of the earths interior and for determining the height of aircraft from the ground
IPC: G01S11/02
Filed: 1923-07-20
Abstract: 220,779. Lowy, H. July 20, 1923. Aerials and like radiating and receiving conductors; thermionic valve circuits. - Conducting bodies within the earth are located by observing the small changes produced in the wave-length and damping of the oscillation circuit of an excited antenna A suspended below an airship Z without touching the earth. Change of wave-length due to change of capacity caused by the presence of minerals &c. is measured by decrease of current in an ammeter in the anode circuit of a valve, the filament current being maintained constant by an iron resistance.
Patent GB-591126-A (GB)
Title: Improvements in and relating to shock absorbers for cycle handlebars and the like
IPC: B62K21/14
Filed: 1945-09-24
Abstract: 591,126. Shock-absorbers for cycle handlebars. MASEYK, A. W. Sept. 24, 1945, No. 18775. [Class 136 (iii)] [Also in Group XXXII] In shock-absorbers for cycle handlebars of the kind in which a spider formed or mounted on the handlebar is surrounded by a rubber cushion which is non-rotatably mounted in the head or lug of the handlebar, the cushion D is non-rotatably mounted in a housing C which is adapted to be clamped in the head or lug 'B of the handlebar stem A. The handlebar G is provided with lever or levers F which are connected to the spider and bear against the head B to prevent relative rotation of the handlebar with respect to the handlebar stem. In a modification, the handlebar passes through the spider E and is secured to it, the handlebar being provided with plates O secured thereto. These plates bear against the head B and prevent relative rotation of the handlebar with respect to the handlebar stem about the substantially vertical axis of the latter.
Patent GB-202479-A (GB)
Title: Improvements in the method of and means for imparting a glaze, gloss, or enhanced finish to coloured or other prints, paper, card-board, wood or other substance or material
IPC: B44C1/00
Filed: 1922-07-10
Abstract: 202,479. Harte, F. V. July 10, 1922. Enamelling; glazing.-In glossing, glazing, orfinishing coloured or other prints, post-cards, orthe like, an exceedingly thin sheet or mask of copper or the like is momentarily laid or interposed on the face to be finished while the article is subjected to heat and pressure. The thin sheet instantly passes or conducts the heat and may be stripped or removed and used again immediately. In rotary machines, an endless sheet may be used, with or without a cooling liquid.