baber/WOPTO huggingface dataset:
Patent GB-1482847-A (GB)
Title: Device for atomizing a sample for flameless atomic absorption spectroscopy measurements
IPC: G01N21/74
Filed: 1975-03-21
Abstract: 1482847 Atomizing samples BODENSEEWERK PERKIN ELMER & CO GmbH 21 March 1975 [22 March 1974] 11965/75 Heading G2J [Also in Division H5] A flameless atomic absorption spectroscopy furnace has a hollow cylindrical heating resistor 10, within which the sample is heated, with a radial bore 13 in a central portion, which is mounted by engagement of its ends 12, 14 with contact surfaces on tubular electrodes 16, 18 having respective cooling jackets 26, 28, the electrodes continuing along the resistor 10 at a small spacing therefrom 34 for passage of a protective gas that also passes through the axial bore in the resistor from both directions and out through the side hole 13. The ends of the resistor may be conical as shown to engage with conical contact surfaces on the electrodes or square to the axis, Figs. 7 and 8 (not shown) to give a reliable reproducible live contact with the electrode conical contact surfaces on the electrode contact surfaces may be flat and square to the axis at a step on the conical face, Fig. 9 (not shown).  The facing edges of the electrodes are stepped in axial cross-section to hinder radiation heat losses. One of the electrodes, 16, is longer than the other and has an opening 38 through which samples are injected via bore 13 into the resistor 10. Light traverses axially the resistor 10 through windows 52, 54 in fittings 48, 50 engaged in extensions of cooling jackets 26, 28.  Protective gas enters via conduit 64 (Fig. 2) and passes tangentially into chambers 40, 42 from channels 60, 62 before entering the hollow of resistor 10. It enters tangentially into chambers 68, 70 via channels 76, 78. Chambers 68, 70 are connected to space 34 about the resistor via three passages 80, 82 extending obliquely inwards. Chambers 40, 42 are defined by water jackets, 26, 28 electrode outer ends and windows; chambers 60, 62 are annular and are defined by water jackets 26, 28 including projections 72, 74, and electrodes 16, 18. Cooling jacket 26 is secured to pedestal 92. Jacket 28 is movable and is held by engagement of spring washers 86, 88 between annular body 90 and extension 84 of the water jacket. Annular body 90 has a bore 98 which is guided on horizontal rods 94 96, Fig. 2 and is locked in position by a plate 100, Fig. 3 (not shown) engaging grooves on the rods. Release of plate 100 permits body 90 and hence water jacket 28, electrode 18 and resistor 10 to be removed. The conical surfaces assist centering and aligning of the resistor during replacement. Pedestal 92 and body 90 with its base 98 are angularly adjustable about vertical pin 108 having an axis through the centre of the resistor, about horizontal pin 110 on the axis of pin 108. Pin 108 is mounted in a base-plate 106 which is vertically (132, 134 136) and transversely (138, 140, 142) adjustable with respect to a plate 144 which also is adjustable in a direction parallel to the light beam.
Patent GB-1488236-A (GB)
Title: Studded chain link
IPC: F16G13/14
Filed: 1976-03-25
Abstract: 1488236 Chains BERGVIK OCH ALA AB 25 March 1976 [10 April 1975] 11970/76  Heading F2Q In a stud chain link 1, having a stud 2 secured in place solely by inwardly deforming the sides of the link upon it, the ends of the stud 2 are formed with surfaces which are concave in a cross-section 3 perpendicular to the longitudinal axis of the link, these surfaces also being concave in a cross-section 4 in the longitudinal plane of the link. The radius of curvature of the concave contour in crosssection 3 is smaller than the radius of curvature of the link side members, which are formed by bending a length of circular-section steel rod, flash-welded at a point on one side in line with the stud.
Patent GB-150255-A (GB)
Title: Improvements in joint-making and gland packing
IPC: F16J15/10
Filed: 1920-04-30
Abstract: 150,255. Bulbick, A. April 30, 1920. Packing, non-metallic.-Consists of non-metallic, or elastic sheet or strip material, preferably of india-rubber or asbestos, having on one or both faces ribs or ridges of triangular or other crosssection adapted to collapse under pressure, and to form connected or separate cells. Figs. 1 and 2 shows a sheet with circular cells, and Figs. 3, 4, and 5 show sheets with cells of other forms. The packing may be cut from sheets or strips, or may be made in the form of rings &c.
Patent GB-834043-A (GB)
Title: Blast furnaces
IPC: C21B5/00
Filed: 1957-04-12
Abstract: 834,043. Combustion apparatus; tuyeres. S.P.N.M. SOC. POUR L'EXPLOITATION DE PROCEDES NOUVEAUX METALLURGIQUES. April 12, 1957 [April 19, 1956], No. 12104/57. Class 51(1). Fluid fuel is introduced into the base of a blast furnace through a blast tube 5 forming part of a water-cooled tuyere 1. A plate 7 which seals the blast tube has an orifice 9 slidably accommodating a fuel delivery tube 10 and atomizing means 11 are placed adjacent the delivery end of the tube. Longitudinal displacement of the latter within the tube 5 as well as the amount of fuel and the corresponding air to be delivered is dependent, via automatic or hand-operated means upon the nozzle temperature of the tuyere, a pyrometer 13 and a thermometer 12 being provided for this purpose. Such a fuel supply tuyere is preferably used in a furnace above the level of the normal blast tuyeres.
Patent GB-1159659-A (GB)
Title: A Device for Use in Contact with Blood
IPC: A61L33/06
Filed: 1967-03-15
Abstract: 1,159,659. Surgical prosthesis. DOW CORNING CORP. 15 March, 1967 [23 June, 1966], No. 12141/67. Heading A5R [Also in Divisions B2 and C3] Medical and dental devices and tissue implants for use in contact with blood have on the surface carboxyl groups which render the surface of the device anti-coaguative when in contact with blood. The surfaces may be carboxylated by grafting unsaturated acids such as acrylic acid, methacrylic acid, itaconic acid through free radical initiation, e.g. with ionising radiation with cobalt 60 or a peroxide catalyst. Alternatively carboxylation may be accomplished by a surface treatment of the article with a polymeric material which contains the required carboxyl groups such as polyacrylic acid or a carboxylated organo silicone compounds such as The device which is to be coated may be of organic rubber, stainless steel, plastics or glass. Suitable plastics are specified and the implant may comprise, for example, a heart valve, blood vessel, encapsulant for an electronic device, or a sponge implant material.
Patent GB-695831-A (GB)
Title: Improvements in and relating to plucked keyboard instruments such as harpsichords, spinets and the like
IPC: G10C1/06
Filed: 1951-05-24
Abstract: 695,831. Stringed musical instruments. BRYAN, J. M. May 21, 1952 [May 24, 1951], No. 12182/51. Class 88 (ii). In a jack for a harpsichord or the like, the usual pivoted tongue and plectrum are replaced by a single member F pivoted at E in a slot in the jack A. The plectrum member F is biased towards its forward operative position by gravity which may be assisted by a spring. Damping felt K, Fig. 5, may be secured to the forward edge of the plectrum F below the actual plucking surface in order to ensure a silent return of the jack. Specification 682,858 is referred to.
Patent GB-964823-A (GB)
Title: Method and apparatus for proportioning two materials with respect to the ratio of their weights
IPC: G01G19/22
Filed: 1962-03-29
Abstract: 964,823. Proportioning by weight. LINDELLS VAGFABRIKS A.B. March 29, 1962 [March 30, 1961], No. 12192/62. Heading G1W. In a method of proportioning two flowable materials according to weight the two materials are each respectively supplied intermittently to a respective container B1,B2 (Fig. 1,) so supported on a beam 101 that they substantially balance each other, and the said materials are fed out of their respective containers substantially continuously such that the material levels in the containers vary between an upper and a lower limit while maintaining a substantially constant equilibrium. The positions of approximate equilibrium at the two limits is compared and the difference between the two positions as indicated by a pointer 109, which may be considered to indicate zero for example at the lower level, is detected and used to control automatically the relative proportions of the materials. For correct proportioning of course there should be no difference, that is the beam should be in equilibrium at both limits. The containers are spaced from the fulcrum in agreement with the desired proportions. Adjustable level controls 118,119 are provided below each container actuated by the fluid pressure acting on the containers' bottoms, and which actuate switches NK1, NK11 (Fig. 2) respectively controlling the opening and closing of electromagnetic valves 116,117. NK1 closes valve 116 to stop the feed when the upper limit is reached and opens it again when the level sinks below this limit. Similarly the switch NK11 controls the feed through valve 117. When the two containers are filled both valves are closed and a time delay is started which when run out causes a motor M to start driving a feeler (not shown) of a control device comprised by a "Recorder" according to Swedish Specification 123,638 (the circuit diagram of which is shown in Fig. 2). The containers are gravity fed. Discharge pipes 112,113 are connected to suction pumps (not shown) governed by the said control device. The feeler senses the pointer position at the limit position and the movement of the feeler is communicated to a potentiometer POT (Fig. 2,) utilized to control a servometer (not shown) which in turn adjusts a control means of an associated pump and thus adjusts and corrects the ratio of the proportions fed out.
Patent GB-720505-A (GB)
Title: Process for the preserving treatment of animal skins and hides
IPC: C14C3/22
Filed: 1952-05-14
Abstract: 720,505. Making leather. VERBAND DER DEUTSCHEN LEDERINDUSTRIE. May 14, 1952 [May 15, 1951; June 26, 1951], No. 12240/52. Class 76. Hides and skins are preserved by impregnating with an ester, ether, carboxylic acid, carboxylic acid anhydride or an ethylenic hydrocarbon which has ethylenic unsaturation and is capable of vinylpolymerization together with a copolymerizable substance if desired, and simultaneously or subsequently polymerizing within the hide or skin. Polymerizable and copolymerizable substances specified are: vinyl acetate, ethyl vinyl ether, decahydro-#-naphthol vinyl ether, butadiene, styrol, acrylic acid, methacrylic acid, crotonic acid, maleic acid, maleic anhydride, oleic acid and allyl alcohol esters. The skin or hide may be filled with an aqueous emulsion of the polymerizable substance. Emulsifiers specified are fatty alcohol sulphonates and sulphonated oils. Polymerization accelerators, e.g. benzoyl peroxide, ferrous salts and hydrogen peroxide may be employed. The process may be combined with known tanning processes.
Patent GB-910597-A (GB)
Title: Improvements in or relating to the filling of pressurised containers with liquids
Inventor: SCHOFIELD HUBERT PERCIVAL
IPC: B65B31/00
Filed: 1958-04-17
Abstract: 910,597. Delivering measured quantities of liquid. SURPLICE & TOZER ENGINEERING CO. Ltd. April 15, 1959 [April 17, 1958; Jan. 6, 1959], Nos. 12280/58 and 450/59. Class 106 (5). [Also in Group XVII] In a machine for filling pressurized containers (see Group XVII), a metering device 17 comprises a piston 30 freely moving in a cylinder so that as liquid is supplied to one end the piston moves along the cylinder to discharge a measured quantity of liquid from the other end. The piston shaft operates micro-switches 32, 33 arranged at each end of the cylinder, one of the switches 33 being adjustable in position. A container C is filled with liquid via a nozzle 10, from metering device 17 which then operates one of its associated switches to close valve 12 and open valve 13 to admit a supply of a propellant gas to the container via line 21, four-way valve 27 and metering device 20 from source 19. The metering device 20 is similar to the device 17 arid after delivering the propellant operates one of the micro-switches 34, 35 which closes valve 13, releases solenoid 41 to allow platform 37 supporting the container to drop and also reverses the four-way valves 24, 27 to ensure that the correct ends of the metering devices are connected to the appropriate sources of supply for operation of the next cycle. The four-way valves are reversed by solenoids 25, 28 and 125, 128, operating on shafts 26 and 29.
Patent GB-216673-A (GB)
Title: An improved appliance for use in imparting instruction in or practising swimming
IPC: A63B69/12
Filed: 1923-05-08
Abstract: 216,673. Olsson, H. May 8, 1923. Body attachments, buoyant; swimming appliances. - Apparatus designed for supporting the chin of a swimmer has two or more floats spaced apart by rigid members. As shown, a main ficat 1 has a recess 4 to receive the chin, and arms 2 to which auxiliary floats 3, adjustable to different positions 15 on the arms, are attached. The arms are pivoted to ribs 5 and are held by turn buckles 11. A screen 10 is provided on the main float between the arms, and an adjustable and removable coaming 12 of celluloid keeps water from the nose and mouth. The buoyancy of the floats and the position of the centre of buoyancy are adjustable. The floats may be of rubber &c., and inflated, or may be of metal with means for introducing water, or may be of cork in removable sections. The device is secured to the swimmer by a band 16 which may be wholly or partly buoyant. Independent floats may be attached to the legs of the swimmer by cords of such length as to support the legs at the required depth. In a modification, the main float carries an adjustable horizontal chin supporting plate to which the arms, coaming, &c. are attached. In a further modification, the chin is supported by a band stretched between the arms 2. A further form comprises two floats hinged together, one supporting the chin and the other the chest of the swimmer.
Patent GB-578245-A (GB)
Title: Shaving brush
IPC: A46B15/00
Filed: 1944-06-30
Abstract: 578,245. Brushes ; sharpening razors. WARTMANN, H. June 30, 1944, No. 12456. [Classes 19 and 60] The handle of a shaving brush is provided with an abrasive surface for sharpening razor blades. As shown in Fig. 2, which represents a cross-section of the handle, a piece of glass, porcelain or plastic material 4 containing a finely distributed abrasive substance is adapted. to slide in a groove in the handle 3. The piece 4 may have two opposite working surfaces of different grain. In an alternative form, Fig. 4, the handle has a, cavity extending throughout most of its length with an inner surface 8 covered by a curved sharpening plate 3.. A cover 11 slidable in U-shaped members 10 or hinged to the handle normally covers the cavity. In a further construction, the handle is provided with a cylindrical hollow into which a hollow cylinder, or part of a cylinder, with an inner sharpening surface, is inserted. In this form, a detachable lid is provided and the hollow may be used as a container for spare blades.
Patent GB-484356-A (GB)
Title: Improvements to the wheels of tractors or the like with expansible spikes
IPC: B60B15/10
Filed: 1937-05-01
Abstract: 484,356. Vehicle wheels. VUIGLIO, E. C. May 1, 1937, No. 12465. Convention date, Dec. 8, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 9, 1937.] [Class 144 (i)] A device for attachment to a tractor wheel comprises adjustable ground-engaging spikes 8 pivoted by links 6 to a collar 4 which is rotatably mounted on the hub 35 and connected by arms 39 extending between the spokes 36 of the wheel, to a disc 37 rotatably mounted on a boss 38 fast on the hub 35. The spikes are projected or withdrawn by application of a brake 52 to a drum 50 on the periphery of the disc 37 during forward or reverse running of the wheel, respectively. A sector 49 projecting from the disc 37 is formed with a notch 47 and rack 48 with which co-operate spring-pressed detents 40, 41 pivoted on a bracket 44 fixed to the wheel. Pivoted on the brake-drum 50 is a rocker 55 having an elongated slot 57 traversed by a stud 58 on the disc 37. On application of the brake, with the wheel rotating in the direction of arrow x, the rocker 55 is tilted to lift the detent 40 clear of the notch 47, relative rotation of the wheel and disc 37 then causing the projection of the spikes into operative position. During this movement, the detent 41 rides along the rack 48 to lock the spikes in the adjusted position. To withdraw the spikes, the wheel is reversed and the brake applied to the drum 50 whereupon the rocker 55 tilts to lift the detent 41, the detent 40 being then free to snap into its notch 47 on the (reverse) relative rotation of tho wheel and disc.
Patent GB-638256-A (GB)
Title: Steel refining process
IPC: C21C7/00
Filed: 1948-05-06
Abstract: In the refining of steel there is added to the bath of oxidized steel an amount of carbon greater than that required to reduce all the iron oxide, the excess carbon is then measured and the amount in excess of that required is oxidized.  The excess carbon may be oxidized by the addition of gaseous oxygen, carbon dioxide, or a mixture thereof, or by the addition of metallic oxides, e.g. iron or manganese oxides. The bath may be heated internally during the process or substances which react exothermally with oxygen, e.g. silicon, may be added to the bath; in the latter case sufficient oxygen must be added to oxidize these substances as well as the excess carbon.  The process is stated to remove dissolved nitrogen and hydrogen from the steel, and may be carried out in a converter.
Patent GB-693470-A (GB)
Title: Walking aid for small children
IPC: A47D13/04
Filed: 1951-05-29
Abstract: 693,470. Automatic musical instruments. DUNKELMAN, B. May 29, 1951 [June 17, 1950], No. 12545/51. Class 88 (i) [Also in Group XV] A child's walking aid comprises a rotatable element B mounted on pedestal C and connected to a musical box which operates as the child walks round the pedestal holding the element. As shown, Fig. 3, the element B is mounted on a shaft 12 rotatable in a sleeve 13 mounted in pedestal C. The shaft 12 is adjustably connected to sleeve 14 which is in driving engagement with shaft 26 of a music box E.
Patent GB-217568-A (GB)
Title: Improvements in or relating to the production of aluminium oxide
IPC: C01F7/22
Filed: 1924-05-22
Abstract: In the production of alumina by treating raw material such as clay, argillaceous slate, or bauxite with hydrochloric acid, precipitating the aluminium chloride by means of hydrochloric acid gas and calcining the chloride, the mixture of hydrochloric acid and steam liberated in the calcination of the crystals is used for the precipitation of chloride from the solution, and all or part of the molten liquor after separation of the crystals is used for dissolving more raw material in such quantity that the quantity of alumina dissolved in a given time corresponds with the amount of aluminium chloride crystals removed during the same time, and the quantity of hydrochloric acid and steam returned from the calcination apparatus is sufficient to precipitate the necessary quantity of aluminium chloride crystals.  The solution of the raw material may be effected at 60-100 DEG  C. and the treatment of the aluminium chloride solution with the hydrochloric acid may be effected by spraying the solution through the gas.  In this operation heat is liberated, and may be removed by passing the liquor through a closed apparatus in which it is treated with a current of air which is subsequently treated to recover the hydrochloric acid which it carries off.
Patent GB-193749-A (GB)
Title: Improved catch or catch device for employment in the opening, closing and fastening of the doors of the mouthpieces of gas retorts, and other like doors
IPC: C10B25/02
Filed: 1922-05-04
Abstract: 193,749. Dempster, Ltd., R. & J., and Beard, G. F. H. May 4, 1922. Hasp fastenings. - A pivoted catch d for gasretort doors &c. and of the kind wherein the catch is moved to fastening position on being struck by the inmoving door, and forces out the door when the catch end is struck for release, has an integral projection d<3> on the door side of the pivot. When the catch is brought sharply to the fastening position, the shaped end b<3> on the door bar b<1> strikes this projection and swings the catch into fastening position. 193,759. Taylor, E. May 19, 1922. Latches, sliding; bolts -A lock or latch bolt is made with a separate head engaged by inturned projections on a frame - like sheet - metal shank. The head m has recesses n into which fit the inwardly bent ends j, k of the shank f. The shank f has parallel limbs g, h which fit along the top and bottom rims of the casing, serving to guide the bolt and also preventing disengagement of the ends j, k, from their recesses n. A bulge o may be made to house the boss of a follower, and a part u may be stamped up to co-operate with a catch to prevent withdrawal of the bolt.
Patent GB-290201-A (GB)
Title: Improvements relating to fluid pressure brakes for automobile and other vehicles
IPC: F16D65/50
Filed: 1928-04-30
Abstract: 290,201. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Hukill, H. D.). May 9, 1927, [Convention date]. Compensating for wear; fluid - prcssure.- Brake apparatus more particularly for automobiles comprises a brake applying shaft mounted in a bracket and actuated by a device removably mounted on the bracket and connected to the shaft by means permitting adjustment of the shaft with respect to the device. Combined fluid-pressure and manually operated apparatus is shown and comprises a shaft 4 carrying the cam of an internal expanding brake and mounted in spaced bearings on a bracket 2 which also carries the fluid-pressure diaphragm brake chamber 7 so that it is only necessary to change the bracket 2 in order to adapt the apparatus for various types of automobile. Secured to the cam shaft 4 between the spaced bearings is a worm wheel 19 having projecting annular collars on opposite sides on which is mounted a casing 22, connected by an arm 30 to the rod 13 of the brake chamber and by an arm 31 and a pin and slot to the manually operable brake rod. A worm 23 meshing with the wheel 19 is carried in the casing 22 and is adapted to be turned by a nut 29 when it is desired to adjust the apparatus. One end of the worm shaft is mounted in a bushing 25 screwed into the casing and carrying a spring pressed ball 27 engaging recesses in the worm shaft in order to prevent accidental rotation. One side of the casing 22 comprises a screwed bushing to allow the worm wheel to be placed in position. The brake chamber 7 is secured to the bracket 2 by means of a flange 14 having a strengthening rib 16.