baber/WOPTO huggingface dataset:
Patent GB-885546-A (GB)
Title: Method and means for controlling a piping system
IPC: F16L3/215
Filed: 1959-02-03
Abstract: 885,546. Electric correspondence control systems. GRINNELL CORPORATION. Feb. 3, 1959 [Feb. 3, 1958; Jan. 26, 1959], No. 3753/59. Class 40 (1). [Also in Groups XX and XXX] Apparatus for controlling the tension at the fixed ends of a steam pipe with expansion comprises means for measuring the temperature of the pipe or its expansion, and producing via an electrical system a proportionate force which is applied at appropriate points to oppose the end forces produced by the expansion. As shown (Fig. 1) steam from a superheater header 14 is conveyed to a turbine 22 by a pipe 30, whose unrestricted expansion would cause unsafe stresses at the ends 12, 24. A pivoted clamp 42 fixes the pipe 30 to a structure at a point approximately level with the turbine axis, thereby eliminating any stress at ends 24 due to vertical expansion between the ends 25 and the clamp 42. To remove stress due to horizontal expansion, the temperature of the horizontal portion is sensed at 54 by the corresponding expansion of a liquid in a reservoir 152 (Fig. 5), the increase in pressure being fed via a thin bore tube 148 to a bellows 142 which operates a follow-up switch member 120 in a casing 58, producing energization of a motor which exerts a longitudinal pull or push on a rod 48 attached to a cross-bar 50 and a clamp 53 engaging the pipe, thereby producing a horizontal movement of the pipe which counteracts the thermal stress at the connections 24, and repositions the co-operating contact members 107, 108 of the follow-up switch. The switch member 120 carries a pointer 154 associated with a scale 156 giving the required position of the pointer at any temperature for safe stress at ends 24. The pipe may be installed under stress when cold, when the forceproducing unit 46 acts in the opposite manner to oppose the cold stresses. In another embodiment (Fig. 10) the vertical expansion of the pipe 204 from the clamped position 202, moves the slider 214 of a potentiometer 216 to unbalance a resistance bridge which is automatically rebalanced by a motor 200, simultaneously producing a proportionate pull on the horizontal portion of the pipe. In an alternative arrangement the potentiometer 216 is replaced by a temperature-sensitive resistor mounted on the pipe, or the force-producing unit may be controlled by the output of a thermocouple. Similar arrangements are described for the other end of the pipe, utilizing several force-producing units as required.
Patent GB-812308-A (GB)
Title: Method and apparatus for continuously forming a fibrous web from a liquid suspensionand progressively removing liquid therefrom
IPC: D21F9/00
Filed: 1957-02-05
Abstract: 812,308. Paper-board manufacture &c. SEAMAN, S. E. Feb. 5, 1957 [Feb. 21, 1956], No. 3888/57. Class 96. Paper pulp, e.g. of ground wood, cotton linters or alkali cellulose, from a flow-box &c. 11 is discharged to a sloping, perforated plate 10 from which it passes to a travelling, foraminous conveyer 12 which passes through wet presses 15 of progressively increasing pressure, the web thus formed being further pressed by a threeroll press 16, 17, 18 or alternatively by two separate wet presses, the pressures at the two nips being hydraulically regulated, e.g. so that the pressure at the second nip is the greater. The rolls 16, 17 are formed as a series of rings which may be plain or peaked and are slightly spaced apart to provide an interrupted smooth or circumferentially peaked surface. The rings may be undercut &c. to facilitate drainage. The upper roll 18 may be plain or slotted. Drainage from the forming and pressing parts of the machine is collected in a partitioned tank 28 and pumped at 30 &c. for re-use. e.g. after purifying by dializers. From the delivery conveyer 19, the web goes to a dryer or to a picker &c.
Patent GB-307912-A (GB)
Title: Improvements in or relating to electrophoretic deposition of solids from dispersions, for example caoutchouc from latex
IPC: C08C1/14
Filed: 1929-02-05
Abstract: 307,912. Siemens - Elektro - Osmose Ges. March 17, 1928, [Convention date]. Addition to 305,630. Latex, coagulating.-Rubber latex is treated by first adding a protective colloid such as globulin which prevents premature precipitation of the particles, then reducing the hydrogen ion concentration to a pH value of about 7 by treatment with a weakly acid gas or gaseous mixture, preferably carbon dioxide and finally adding a small quantity of a liquid according to the parent Specification whereby the electrical charge on the particles is reversed; electrophoretic deposition on the cathode is then effected. The gas may be introduced by several nozzles distributed through the liquid, or may be passed over it. Before treating ammoniacal latex, the ammonia content should be diminished by gentle heating.
Patent GB-467351-A (GB)
Title: Improvements in apparatus for purifying swimming bath water
IPC: E04H4/12
Filed: 1936-02-11
Abstract: 467,351. Swimming-baths; purifying water. DAVENPORT, J. A. Feb. 11, 1936, No. 4061. [Classes 26 and 46] A swimming-bath is provided with more than one set of inlets and more than one set of outlets and valved connecting pipes for circulating the water through a purifying apparatus outside the bath, the pipes and valves being so arranged that different portions of the bath may be placed either in series or in parallel in the purifying circuit. In the arrangement shown in Fig. 1, the bath 1 has outlet wells 2, 3, at the ends and distributing pipes 4, 5 with branches 6 in the bottom and sides of the bath. There are strainers 10, 15, pumps 11, 16 and a purifying apparatus 22, which may include a filter, aerator and heater. The connecting pipes have one-way valves 49 ... 54, and three-way valves 17, 18, 47, 48. Fig. 3 shows a crosssection of one of the wells. It is connected with the bath through overflows 38 and through a lower opening controlled by a valve 41 on the lever 42 of a float 44. Water may be drawn from the bath through the well 3 by the pump 11, passed through the strainer 10 and purifier 22, and returned to the bath through the distributing pipe 5. After flowing through the left-hand portion of the bath it is drawn off through the well 2, strainer 15 and pump 16 and returned by the distributing pipe 4 to complete the circuit by flowing through the right-hand portion of the bath to the well 3. By suitable readjustment of the valves, the two portions of the bath may form parallel portions of a circuit including the purifier 22. Other adjustments of the valves allow of the water being drawn from the bath through the pipes 4, 5 and returned to it through the wells 2, 3. The apparatus may include a sterilizing device. An arrangement of two swimming- baths is described having connecting pipes with valves such that the baths may be placed either in series or parallel in a circuit which includes a purifier. Each of the baths may have more than one set of inlets and more than one set of outlets, so that the flow in each bath mav be similar to that described in connection with Fig. 1.
Patent GB-537151-A (GB)
Title: Improvements in or relating to the mounting of magnifying glasses
IPC: G02B25/02
Filed: 1940-03-05
Abstract: 537,151. Lamps combined with magnifying glasses. HORSTMANN, E. G. March 5, 1940. No. 4085. [Classes 75 (ii) and 75 (iii)] [Also in Group XX] A magnifying glass, preferably a large rectangular bi-convex lens is mounted on a lamp shade in a position to enable the object illuminated to be viewed without direct light from the lamp reaching the observer. In the apparatus shown the magnifying glass 5 is bolted to channel elements 6 pivoted to a bracket 9 on a lamp shade 3. The elements may be clamped after angular adjustment by a knurled nut 10.
Patent GB-820846-A (GB)
Title: Improvements in or relating to apparatus for collecting cigarettes in trays
IPC: A24C5/354
Filed: 1955-06-03
Abstract: 820,846. Ratchet gearing. MOLINS, D. W., PEMBROKE, G. F., WILLIAMS, H., and MOLINS MACHINE CO. Ltd. Feb. 22, 1956 [June 3, 1955], No. 4102/59. Divided out of 820,845, [Group XVII]. Class 80 (3). [Also in Group XVII] A trolley 10, 10a for cigarette trays (see Group XVII), is moved in steps past the end 159 of a co-acting conveyer bed by hand operation of a lever 162 linked to a lever 154 mounting a pawl 153 acting on a rack 151 on the trolley, the end 159 being pivoted upwards during pawl operation, by a toggle 168, 169 linked to the lever 154, so that locking projections 161 on the trolley are freed from slots 160 in the end 159. The pawl 153 is raised at the right-hand end of its stroke, by co-action between its tail 156 and a stop 157, to allow rearward wheeling of a fresh trolley into starting position.
Patent GB-1443894-A (GB)
Title: Sintered fe-ti carbide parts
IPC: C22C1/05
Filed: 1974-01-30
Abstract: 1443894 Sintered Fe-Ti carbide parts JOHNSON PRODUCTS Inc 30 Jan 1974 [26 Feb 1973 (2)] 04247/74 Heading C7D A metal part comprising titanium carbide particles of a hardness of 70 or more on the Rockwell C scale is formed by preparing a mixture of powdered material having 0À25 to 60 wt. per cent ferrotitanium, 0À1 to 10 wt. per cent carbon the remainder of the mixture being substantially iron based powder, compacting the mixture and sintering above the melting temperature of the ferrotitanium powder and below the melting point of the iron based powder. The ferrotitanium powder may be of mesh size 40 or less and the powder mixture may additionally comprise Cu, Mo, P and S and may be compacted at 36 tons/sq. inch gradually heated to 2100‹F for approximately 2 hours, held at 2100‹F for 1 hour and gradually cooled to 825‹F over 3 hours and then cooled to ambient temperature and carbonitrided, flame, induction or through hardened optionally using a salt bath. The metal part may be in the form of tappets, cam-shaft, camlobes, rotary engine seals and rocker arms.
Patent GB-900359-A (GB)
Title: Process for producing white and colour resist effects on natural or regenerated cellulose fabrics
IPC: D06P5/12
Filed: 1960-02-05
Abstract: White or coloured resist effects are produced on fabrics of natural or regenerated cellulose fibres by padding the fabric with a liquor containing a leuco sulphuric acid ester of an anthraquinoid or indigoid vat dyestuff and a salt, preferably an alkali metal or alkaline earth metal salt, of nitrous acid, then drying and overprinting with a paste containing a compound of the formula:-X-NH-Y wherein X represents a hydrogen atom or a phenyl radical which may be substituted by alkoxy or amino groups and Y represents a primary amino group; a sulphonic acid, sulphonamide, thiosulphonamide or sulphonic acid alkyl ester group; a carboxyalkyl group; a hydroxyl group; a phenyl radical which may be substituted by halogen atoms, or by nitro, amino, imino, alkoxy, sulphonic acid, sulphonamide, thiosulphonamide, carboxylic acid, amide or thioamide groups or by an N-anilino radical that may also be substituted by carboxylic acid, amide, thioamide, sulphonic acid, sulphonamide or thiosulphonamide groups; or a benzoyl group or a thiobenzoyl group; or where appropriate, a metal or amine salt of the above compound, the compound serving to destroy the nitrite and to yield a white resist effect, coloured resist effects being obtained by also incorporating in the paste, a vat dyestuff and a reducing agent and development of the leuco ester being finally effected by treatment with dilute sulphuric acid, if necessary, particularly when a coloured resist effect is to be obtained, following an intermediate steaming operation.  Specified compounds of the above formula are hydrazine, urea, thiourea, hydroxylamine, diphenylamine, p-amino-diphenylamine, aniline and its halogen substitution products, p-nitraniline, anisidine, phenylglycine, p-methoxyphenylglycine, p-aminophenylglycine sulphanilic acid, anthranilic acid, 3- or 4-aminobenzoic acid, 2- or 3-aminobenzene sulphonic acid or the salts, esters, amides or thioamides thereof, phenylhydrazine, phenylhydrazine p-sulphonic or -carboxylic acid, p-phenylhydrazine-sulphonic acid-methyl or -ethyl ester, benzoic acid amide and amidosulphonic acid or esters thereof.  Specified reducing agents for use in the paste together with vat dyestuffs are various aldehyde-sulphoxylates and thiourea dioxide.  The paste may also contain the usual auxiliary fixing agents for vat dyestuffs such as glycerine, urea, triethanolamine, and anthraquinone.  Examples are given.
Patent GB-193272-A (GB)
Title: Improvements in piston and crank connections for pneumatic tools and the like
IPC: B23B47/12
Filed: 1922-02-15
Abstract: 193,272. Goold, L. W., (Chicago Pneumatic Tool Co.). Feb. 15, 1922. Connecting-rods.-In pneumatic-tool and like motors wherein a number of connecting-rods are. attached to one crank, segmental projections 11 on the rods 8 are secured on the pin 12 by hinged rings which may be tapered and locked in position by split, tapered, resilient rings 18 having recesses 21, engaging projections 20 on the hinged rings, or the rings may also be hinged at the bottom or secured by a screw.
Patent GB-873778-A (GB)
Title: Vulcanised rubbery composition
IPC: C08L23/22
Filed: 1960-02-08
Abstract: Rubbery copolymers of 80%-99,5% of an iso-olefin having 4-7 carbon atoms with 0,5%-20% of a conjugated diolefin having 4-8 carbon atoms are vulcanized by heating with 1-20 parts per 100 parts of copolymer of a material resulting from treating with a weak alkali the reaction product of an aldehyde with a para-hydrocarbon substituted phenol in the presence of a hydrogen halide, the said hydrocarbon substituent being selected from alkyl, cycloalkyl, aryl and aralkyl radicals. Specified iso-olefins and diolefins are isobutylene, ethylmethylethylene, isoprene and butadiene.  Specified phenols are p-tertiary amyl phenol, p-octyl phenol, p-tertiary nonyl phenol, p-tertiary butyl phenol, p-phenyl phenol, p-benzyl phenol, p-(a -dimethylbenzyl) phenol, p-dodecyl phenol, p-cyclohexyl phenol and p-isobornyl phenol.  Examples describe the curing of butyl rubber with resinous mixtures including monomers, dimers and trimers of: <FORM:0873778/IV (a)/1> <FORM:0873778/IV (a)/2> prepared by reacting formaldehyde and p-tertiary amyl phenol in the presence of hydrogen chloride and treating the product with sodium bicarbonate.  The vulcanized compositions may be used in the manufacture of tyre curing bags.
Patent GB-433848-A (GB)
Title: Process for the manufacture of gas masks with vizor of transparent elastic material
IPC: A62B18/02
Filed: 1935-02-12
Abstract: 433,848. Gas-masks. STOLTZENBERG, H., (trading as CHEMISCHE FABRIK DR. H. STOLTZENBERG), 19, M÷nckebergstrasse, Hamburg, Germany. Feb. 12, 1935, No. 4468. Convention date, Feb. 12, 1934. [Class 81 (ii)] In gas-marks comprising a visor of transparent flexible material such as celluloid, and a flexible surround contacting with the face, the surround is cut from a flat piece of non-extensible material such as doubled drill having the shape shown and comprising a cross-piece a having edges d, e which may be straight or curved downwardly to radii f, g, respectively, side pieces b extending outwardly and of gradually increasing width towards thin outer ends, and inwardly extending curved pieces c the edges k of which are cut angularly as shown. To make the mask the edges k, k, l,l, are stitched together to form a frame to which the transparent visor element is secured, and a circular aperture beneath it adapted to receive a connection to the filter.
Patent GB-285905-A (GB)
Title: A device for transforming a rectilinear movement into a continuous rotary movement
IPC: F16H37/12
Filed: 1928-02-13
Abstract: 285,905. Bouillon, E., Tarrant, W. G., and Allen, R. Feb. 25, 1927, [Convention date]. Driving-gear.-A shatt 2 is driven by the piston 5 through the intermediary of a. rod 6 which, on the downward stroke, thrusts against a member 11 carried by a flywheel 1 secured to the shaft, a pair of bell cranks 9 pivoted at 10 in the walls of the casing 3 co-operating with cams 18 on either side of the flywheel to return the piston at any desired rate during the continuance of the rotation. The member 11 is slidably mounted in the flywheel being pivoted to the longer arm of a lever 13 fulcrummed at 14 and terminating in a roller 15. It is normally retracted by the action of centrifugal force on the roller end 15 of the lever but during the power stroke is positively kept in the straight line of action of the piston rod 6 by the passage of the roller 15 over a fixed cam surface 16 within the casing 3. The bell cranks 9 are in slotted engagement at one end 8 with rollers 7 on each side of the piston rod 6 and, at the other end, carry rollers 19 which during the power stroke ride between guides 20, 21 on the sides of the flywheel to the starting point of the cam rises 23. These may be of involute or other form according to the nature of the return motion to be imparted to the piston rod. In the forms shown in Figs. 3 and 5, the pistons make respectively one and two strokes to each rotation of the shaft. Fig. 5 shows the commencement of the power stroke and Fig. 3 the end thereof. The nose of the cam 18 may comprise a spring-pressed yielding portion 24, Fig. 6, pivoted at 25 and formed with inclines 26, 27 presented to the roller 19 during its passage thereover to assist the co-operative action. A number of the above driving units acting in sequence may be arranged between a multi cylinder engine and shaft.
Patent GB-1150506-A (GB)
Title: Powder produced by Vibrated Action upon a Metal Melt with Atomization of the Metal, and a method for its production
IPC: C01B13/32
Filed: 1967-01-30
Abstract: 1,150,506. Metal oxides. VARTA A.G. 30 Jan., 1967 [3 Feb., 1966], No. 4496/67. Heading C1A. [Also in Divisions C7 and H1] Metal oxide particles of spherical shape are produced by feeding liquid metal, such as Pb, Cd, Ag, Hg or Cu, to vibrating plate 5 and atomizing it in an inert or reducing atmosphere 7, then passing the metal mist produced through an oxidizing atmosphere in zone 8. Plate 5 is vibrated at from 15 kilocycles to 5 megacycles per second, suitably by rotatable vibrational oscillator 4. Burning of H or a hydrocarbon fed through conduit 6 heats plate 5 and maintains atmosphere 7, while air, air enriched with O, O or saturated steam may be passed upwards through zone 8. Turbulence may be induced in these gases and the fall of the particles through them regulated. Preferably the temperature in zone 8 is between 100‹ C. and the vaporization temperature of the atomized metal. A cooling zone may follow zone 8 and the solidified particles may be collected by funnel 10. The powder has a particle diameter between 1 and 50 microns, all the particles lying between Œ20% of a mean value.
Patent GB-1178211-A (GB)
Title: Bifocal Contact Lens
IPC: G02C7/04
Filed: 1968-01-29
Abstract: 1,178,211. Bi-focal contact lenses. PLASTIC CONTACT LENS CO. Jan. 29, 1968 [April 20, 1967], No.4528/68. Heading G2J. A contact lens 10 comprises a light transmitting area 12 centrally located in the pupil area and a surrounding area 14, the latter being formed of opaque areas 15 and light transmission regions 16. The area 12 is provided with proper correction for a nearsighted condition, while the provision of light transmitting and opaque regions provides for close vision, without a prescribed optical correction in the area 14. A prescription for distance is usually ground across the entire lens. The areas 15 may be coloured. Other forms of light transmission regions are illustrated.
Patent GB-198309-A (GB)
Title: Improvements in bobbin carriers for spinning and like machines
IPC: D01H1/243
Filed: 1922-04-20
Abstract: 198,309. British Thomson - Houston Co., Ltd., and Clough, F. H. April 20, 1922. Spindle apparatus.-A bobbin-carrier for spinning and like machines, wherein the carrier is frictionally driven from a member rotating in synchronism with and slidable on the spindle, comprises a flanged sleeve e provided with an inwardly-projecting flange d so as to embrace a flange c of a sleeve b splined to the spindle. A brake is applied to the rim g to effect the winding.
Patent GB-538422-A (GB)
Title: Improvements in or relating to gun-sighting apparatus
IPC: F41G5/18
Filed: 1940-03-12
Abstract: 538,422. Gun sights. FAIREY AVIATION CO., Ltd., and WRIGHT, M. E. A. March 12, 1940, Nos. 4598 and 6451. [Class 92 (ii)] Gun sights for aircraft or other fast-moving vehicles are corrected for the speed of the vehicle when moving in a curved path, whilst diving, climbing or swerving, by centrifugal force acting on a weight which may control a bead or ring back or fore sight or an optical reflection or refraction member interposed in the line of sight. Fig. 1 shows the attacking aircraft a moving in a curved path p with a rear bead sight y deflected by a weighted lever d to give, in conjunction with a fixed foresight x, a corrected sight line c, s. Fig. 9 shows one form of weighted lever d carrying the bead y. The lever is supported in a ball joint 51 in a chamber 53 filled with damping fluid and is controlled for elevational and lateral correction by weights h, 63 respectively. Springs may be provided to control the movements of the weights. Fig. 14 shows a bead y connected to a piston 92 moving in a cylinder forming part of a U-tube containing liquid the extension of which in the legs of the tube forms the weight. The U-tube is movable laterally about trunnions 87 under the control of springs 91. Fig. 17 shows the application to a reflector sight of known type, the correction to the line of sight being obtained by the distortion of a cell 96 formed of glycerine between a fixed glass plate 98 and a similar plate 99 mounted for ,movement against the action of springs 110 under the centrifugal force of weights 102, 108. The cell is thus converted into a prism to deflect the line of sight. In place of the cell, a movable lens may be provided below the usual lens 95. Fig. 28 shows a modification in which the reflector 94 is controlled by a weighted lever 133. Fig. 33 shows a distortion cell 96 as in Fig. 17 with a weight 149 for use, as shown in Fig. 35, in conjunction with an unmodified reflector sight 94.
Patent GB-175638-A (GB)
Title: A method of producing artificial stones for drilling, turning and wire-drawing purposes
IPC: B21C3/18
Filed: 1922-02-16
Abstract: Artificial stones for making drilling and turning tools and wire-drawing dies are produced by mixing powdered tungsten or tungsten compounds with diamond dust, and heating the mixture in a closed mould in an electric arc or resistance furnace.  The product is a carbide which may contain excess carbon in the form of diamond particles, particularly in the centre of the mass. Other metals such as iron and titanium may be added to the mixture before heating.  The Specification, as open to inspection under Sect. 91 (3) (a), describes also the application of the process to the production of carbides of molybdenum and the difficulty fusible metals.  This subject-matter does not appear in the Specification as accepted.