baber/WOPTO huggingface dataset:
Patent GB-168075-A (GB)
Title: Improvements in and relating to mechanism for changing continuous rotary motion into intermittent rotary motion
IPC: F16H27/10
Filed: 1920-02-16
Abstract: 168,075. White, A. E., (Harris Manufacturing Co., A. W.). Feb. 16, 1920. Controlling clutches.-In means for intermittently rotating a driven shaft from a continuously rotating driving-shaft, toothed gearing is connected and disconnected at predetermined intervals by one or more clutches operated by mechanism rotating with these shafts. In the arrangement shown in Figs. 1, 2, and 3, a gear 5 secured to the driving-shaft 2 meshes with a gear 7 loose on the driven shaft 8 and normally locked thereto by a sliding bolt 10 adapted to engage one of a number of holes 10<1> in the gear. A spring 19 acts through a circumferentially.set lever 17 and a bell-crank lever 12 to keep the bolt 10 in engagement. At certain times. a cam 6 carried by the shaft 2 engages a snug 20 upon the lever 17 so as to disengage the bolt 10 from the gear 7 and bring it into engagement with a fixed arm 21, thereby stopping the shaft 2. The gears 5, 7 revolve loosely until the cam 6 clears the snug 20, when the drive is again picked up. In order that the parts 6, 20 may engage again when the shaft 8 has made one revolution, the cam 6 should be equal in length to the difference in the rims of the wheels 5, 7. With other proportions, the shaft 8 may make more than one complete revolution at a time. The cam shaft may be arranged to have epicyclic motion. Reference has been directed by the Comptroller to Speciftcations 15284/95, 458/13, and 5278/13.
Patent GB-1094381-A (GB)
Title: A process for the manufacture of plates and plate-like shaped parts of synthetic resin-bonded cellulose-containing material
Inventor: SCHWIERTZ HEINZ
IPC: C08L97/02
Filed: 1965-02-04
Abstract: Chipboard is made from non-comminuted peanut shells and a synthetic resin binder in a proportion of 8-10% by weight of the dry shells. The moisture content of the mixture should be 15-25% by weight of the dry shells. An insecticide may be incorporated. The initial moulding pressure is 15-25 kg/cm.2 and this is slowly lowered continuously or in stages to zero, zero pressure being maintained for 30 seconds before opening the press.
Patent GB-1474875-A (GB)
Title: System for thermally protecting the wall of a vessel
IPC: G21C11/08
Filed: 1975-02-05
Abstract: 1474875 Thermal insulation COMMISSARIAT A L'ENERGIE ATOMIQUE 5 Feb 1975 [8 Feb 1974] 4917/75 Heading F2X [Also in Division G6] A thermal protective system for the wall 3 of a vessel comprises a plurality of baffles 27, Fig. 2, immersed in a liquid 2 in the vessel, the baffles extending over the entire contour of the wall and so arranged that an inert gas is confined in spaces 32 against the wall of the vessel to form a substantially continuous gas barrier. In a modification, Fig. 3 (not shown), each baffle comprises two tubular elements interconnected by narrow ducts, one element of each baffle containing the inert gas and forming a layer next to the vessel wall and the other elements containing liquid and forming an adjacent inner layer. In Fig. 4, baffles 43 are arranged as shown between parallel walls of a vessel and supported on shelves 49. Gas 47 is trapped in narrow upper parts of the baffles by liquid 48. The arrangements described are especially suitable for the vessels containing liquid sodium coolant forming part of a fast nuclear reactor.
Patent GB-1382763-A (GB)
Title: Air-conditioning system for motor vehicles
IPC: B60H1/00
Filed: 1973-02-01
Abstract: 1382763 Motor vehicle ventilation ROBERT BOSCH GmbH 1 Feb 1973 [1 Feb 1972] 5057/73 Heading F4V An air-conditioning system for motor vehicles comprises a regulating lever 19 controlling the temperature of the air supplied, and a second lever 12 controlling the volume of the air supplied, the range of movement of lever 12 being limited by contact with the levers 19 so that the volume of air does not fall below a given minimum depending on the temperature of the air supplied. This provision prevents the heat-exchanger 2 overheating. The lever 19 may be manually controlled or, as shown, controlled by the temperature of the air downstream of the heat exchanger 2 being urged by spring 21 against the movable pin 22 of a thermal expansion element 23. This element may be itself mounted in the air duct acting on lever 19 directly or through a Bowden cable. Or it may be on the control panel 10 and heated in accordance with the temperature of the air in the duct. The volume of air entering the duct may be regulated by lever 12 through a Bowden cable 15 and flap 6 and Bowden cable 16 and the speed control 5 of fan 4. Movement of lever 12 to reduce the flow of air is limited by abutment with lever 19. As the temperature increases lever 19 will displace lever 12 to increase the flow.
Patent GB-1113894-A (GB)
Title: Tunnel furnace
Inventor: CREMER GOTTFRIED
IPC: F27B9/12
Filed: 1966-02-04
Abstract: 1,113,894. Cooling in tunnel furnaces. FETOK G.m.b.H. 4 Feb., 1966, No. 5062/66. Heading F4B. The cooling section of a tunnel furnace comprises a plurality of chambers 8 disposed above, and connected by apertures (4) with passage 2, the chambers having disposed within them, and at their sides, vertical, horizontally meandering, cooling coils 12a, each such cooling coil being bounded on its underside by masonry (18) within which the apertures (4) are formed. Dampers 29, 30, which vary the size of the apertures, are used to control the degree of communication between the atmospheres in chamber 8 and passage 2. This embodiment prevents corroded surface sections of the cooling coils from falling on to the charge being conveyed through the passage 2.
Patent GB-1424631-A (GB)
Title: Brake and tensioning apparatus for bobbins or spools of a braiding or winding apparatus for sheathing elongate material
IPC: B65H59/02
Filed: 1974-02-04
Abstract: 1424631 Winding machine; thread supply and tensioner W & M OSTERMANN 4 Feb 1974 [16 Feb 1973] 05082/74 Heading B8G [Also in Division D1] A device for tensioning threads withdrawn from bobbins on a spindle controls a bobbin brake, and when thread tension increases a surface on a tensioning arm abuts a stop on a brake-actuating lever to ensure positive brake release. The tensioning device and brake may form part of a winding or braiding machine for sheathing a core. As shown, Fig. 3, the device and brake is combined into a single unit 20 comprising bobbin-supporting spindle 26, disc brake 30 applicable to the bobbins, and strand tensioner 24. A strand of the threads runs in the tensioner over fixed rollers 43, 44 and then runs in a loop about rollers 46, 47. Roller 46 is mounted on pivotable arm 45 which is biased by an adjustable torsion spring in the direction 73 to tension the strand. One leg of the strand loop engages roller 42 on arm 37 which is pivotable about pivot 39 to apply brake 30 via pivot 36. If strand tension increases, Fig. 4, arm 45 is pivoted upwards against spring bias and the force imparted by the strand leg to arm 37, and hence the brake-applying force, is reduced as the angle a approaches 180 degrees. When a minimum length of thread is stored in the loop, surface 81 on arm 45 engages roller 79 on arm 37 to lift the arm to ensure positive brake release. A minimum gap 82 between rollers 42, 46 is maintained. In a braiding or winding machine, Fig. 1, strand supply units 20 are mounted on rotatable plate 11 to deliver strand to, and sheath, running tubing 15. Units 20 are arranged in concentric circles. Each lever 37 extends radially of the plate and, in a non- braking position, parallel to the plate.
Patent GB-498776-A (GB)
Title: Improvements in driving belts
IPC: F16G1/08
Filed: 1938-02-18
Abstract: A rubberized fabric driving belt comprises a pulley-engaging surface composed of fabric or cords impregnated with a rubber distillation residue.  Crude, cured, scrap or compounded rubber cut into small pieces is heated until it melts and is agitated mechanically and by blowing in air.  The temperature is increased to 250-300 DEG  C. and maintained for 15 to 70 hours, after which the mass is cooled and dissolved in carbon tetrachloride or gasoline. The degree of unsaturation of the product (rubber = 100) may lie between 45 and 80.
Patent GB-1519283-A (GB)
Title: Machine for the grathering of paper sheets
IPC: B65H45/04
Filed: 1977-02-08
Abstract: 1519283 Collating sheets GRAPHA-HOLDING AG 8 Feb 1977 [19 Feb 1976] 05115/77 Heading B8R The apparatus is the same as that described in Specification 1,519,282, but the claims are directed particularly to the blade 26 and to means whereby the blade is moved along the pocket from one end to an intermediate position, whereby, when the walls 11, 12 move apart, the principal sheet is opened to move the insert, one folded side being held to the wall 11 by the block.
Patent GB-1034158-A (GB)
Title: Developer for latent electrostatic images
IPC: G03G9/087
Filed: 1965-02-05
Abstract: 1,034,158. Electrophotographic developers. KALLE A.G. Feb. 5,1965 [Feb. 7,1964],No. 5133/65. Addition to 944, 393. Heading G2H. An electrophotographic developer consists of a finely divided positively charging inorganic or organic powder and a negatively self-charging toner comprising wholly or partially a copolymer of an unsaturated organic compound containing one or more carboxyl groups and a vinyl ester. The toner is dyed and may be a copolymer from 95 mole-% vinyl acetate and 5 mole-% crotonic acid. Suitable inorganic positively charging powdered salts are:- potassium sulphate, ammonium chloride, potassium bromide, sodium meta-borate etc.; metal oxides as of aluminium, iron, lead, titanium, zinc and copper; also kieselguler, silica gel, iron, glass &c. powders. Suitable organic positivelycharging powders may be starch, cellulose, lignin, and brass. Low melting point vinyl esters of fatty acids such as propionic acid, butyric acid or acetic acid are used and permit heat fixing of the developed electrostatic image. The compound with carboxyl groups may be crotonic or cinnamic acid as examples of unsaturated mono-carboxylic acids, or maleic, fumanic, or itaconic acid as examples of unsaturated dicarboxylic acids. The developed powder image may, before fixing be transferred to another material such as paper, aluminium, or plastics foil using a corona discharge. The fixed image may be used for off-set printing if the non-printing areas are rendered hydrophilic. Photo-conductive surfaces of zinc oxide on paper are sensitized by corona discharge to a polarity giving a positive or negative copy, and exposure to a light image is made by contact or projection. With a magnetic carrier, the developer is applied by bar magnet or magnetic roller. The developer may be applied simultaneously with a direct-current voltage to the photo-conductive surface.
Patent GB-520322-A (GB)
Title: Centrifugal apparatus for separating dust from gases
IPC: B04C5/12
Filed: 1939-02-16
Abstract: 520,322. Centrifugal dust separators. OSGOOD, A. B. Feb. 16, 1939, No. 5209. [Class 23] A centrifugal dust separator has a cylindrical portion 5 and a depending conical portion 9 bolted together by means of flanges 11, 12; an inner tubular shell 14 forms the clean gas outlet and has shallow tangential passages 14b which permit the outward passage of dust drawn from the tube 14 by the suction exerted by the whirl- .ing gas between the tube 14 and the wall 5. The side wall of a cup shaped bonnet 16 forms a continuation of the tube 14 and is adjustably secured to it by means of flanges 15, 18 and bolts 19. The bonnet 16 carries the discharge spout 17. The lower part of the tube 14 consists of a detachable truncated cone 14a, and the body of the tube 14 consists of overlapping cylindrical segments with spacing blocks 14c riveted between them to form the passages 14b. A conical baffle 21 is fixed in the lower part of the casing; it is supported from a crossbar 23 so that only a small gap is left between its periphery and the wall 9. To prevent separated dust from accumulating, chains 26 are attached to the ends of a vane 25 which is rotated by the current of gas. The dust laden gas enters by the tangential inlet 6 and whirls round in the casings 5, 9. The separated dust drops outside the edge of the baffle 21 and the gas rotates the vane 25. The gas rises up through the pipe 14 and any dust particles in it are pasesd through the passages 14b to rejoin the entering stream, while the clean gas passes to the outlet 17. The crosssectional area of the outlet 17 is preferably greater than that of the inlet 6.
Patent GB-707936-A (GB)
Title: Improvements in or relating to ultrasonic testing or inspecting devices
IPC: G01B17/02
Filed: 1952-02-28
Abstract: 707,936. Valve generating circuits; non-linear valve amplifiers. SPERRY PRODUCTS, Inc. Feb. 28, 1952 [June 22, 1951], No. 5262/52. Class 40 (6). [Also in Group XXXVIII] In an ultrasonic testing device (see Group XXVIII) in which a frequency-modulated oscillator 10 is coupled to a work piece 12 via a piezo-electric crystal 11 and the frequency at which resonance occurs is indicated by applying an output from the oscillator through an amplifier 20 to the Y plates of a cathode-ray tube whose time-base is synchronized with the frequency modulation, the amplitude of the resonance indication is maintained substantially constant by making amplifier 20 non-linear, Fig. 1, or by varying its gain synchronously with the frequency variation. As shown amplifier 20 comprises two pentodes T1 and T2 in cascade, the anode load of Tl comprising a non-linear resistor, e.g. thyrite, whose resistance is inversely proportional to applied voltage, in series with a linear resistance R1 so that as the amplitude of the input signal to T1 varies an increasing proportion of the output from T1 is applied to T2.
Patent GB-803812-A (GB)
Title: Improvements in or relating to boxes and like receptacles for detachably mounting on agricultural and other tractors
IPC: E02F3/34
Filed: 1955-02-22
Abstract: 803,812. Tractor load-handling equipment. BARTELS, F. March 21, 1956 [Feb. 22, 1955], No. 5266/55. Class 78 (3). [Also in Group XXI] A pair of swinging arms 7 carrying stops 10 are so mounted on and at one end of a box, scoop, or like receptacle 2 pivotally mounted by trunnions 5 in vertically movable arms 1 secured on a tractor that movement of the arms 7 relative to each other in one direction causes the stops 10 to engage the arms 1 to hold the receptacle 2 in a fixed relationship to the arms 1 and movement in the opposite direction causes the stops 10 to disengage from the arms and so free the receptacle for pivotal movement about the trunnions 5. A hand-operated linkage 12, 14, 15 actuates the arms 7. Stops 16 and 18 on the receptacle limit the inward and outward movement respectively of the arms 7. An additional stop 10a may be provided on the arms 7 so as to positively limit in either direction pivotal movement of the receptacle.
Patent GB-1111799-A (GB)
Title: Improvements in or relating to walk-on lawns,particularly sports lawns,with drainage
IPC: E01C13/08
Filed: 1967-02-03
Abstract: The lawn disclosed in the parent Specification is modified in that heating elements are disposed in the drainage openings.  The elements may be embedded in the filler material in the openings and may be in the form of electrically heated wires.  In a modification the heating elements are located in drainpipes laid adjacent to the bottom of the openings.  In a further modification the heating elements comprise drainpipes, which preferably have openings in their shell, and which are adapted to be supplied with steam or warm air.ALSO:The lawn disclosed in the parent Specification is modified in that heating elements are disposed in the drainage openings.  The elements may be embedded in the filler material in the openings and may be in the form of electrically heated wires.  In a modification the heating elements are located in drainpipes laid adjacent to the bottom of the openings.  In a further modification the heating elements comprise drainpipes which preferably have openings in their shell and which are adapted to be supplied with steam or warm air.
Patent GB-625185-A (GB)
Title: Die-casting apparatus
IPC: B22D17/20
Filed: 1947-02-26
Abstract: 625,185. Casting-machines; extracting castings. DOEHLER-JARVIS CORPORATION. Feb. 26, 1947, No. 5566. Convention date, March 5, 1946. [Class 83 (i)] Die-casting apparatus comprises a horizontal apertured sleeve adapted to receive a charge of molten metal, a plunger in the sleeve for forcing the charge through a horizontal gate into the middle of a die cavity, means to separate the die and sleeve and means to break the slug from the gate after such separation. The machine comprises fixed plates 82, 84 between which extend tie-rods 86 acting as guides for movable plates 90, 94 carrying parts 88, 92 of the die. When the parts are moved fully to the right, as shown in Fig. 1, a tapered portion 98 at the end of the sleeve engages within a similarly-tapered socket in the plate 90 through which extends a horizontal gate. A charge of molten metal poured into the sleeve through opening 104 is forced by the plunger 100 through the gate and into the die cavity. The die parts are then moved together by hydraulic cylinders 96 and 112 so as to separate the die and sleeve, a knock-off rod 126 is actuated by cylinder 128 to break off the slug removed from the end of the sleeve, and finally the die parts are separated and the casting ejected. The actuation of the cylinder 128 is controlled by a cam bar 140 moving with the die part 94. As shown more clearly in Fig. 4, the upper portion of the sleeve 5 communicates with the gate G so that a greater volume of molten metal may be poured through the opening O without it entering the die. In the form shown in this figure, the ejector portion of the die is built up of parts 32, 34 and 36 set in an outer portion 38, concentric pipes 40, 42 serving to convey cooling water to and from a central core portion 44 which helps to form a hole in an article, such as a saucepan lid, being cast. In another form, the gate passes through a removable water-cooled bushing.
Patent GB-472745-A (GB)
Title: Improvements in and relating to solutions for curling and waving hair
IPC: A61Q5/04
Filed: 1937-02-24
Abstract: 472,745. Hair - waving solutions. KNIBBS, N. V. S. Feb. 24, 1937, No. 5586. [Class 131] A hair-waving solution contains sulphites of amines or hydrazines to which the free base or the free acid may be added. As examples of the amines monodi-, tri-ethanolamine, ethylene diamine and the ethyl, methyl and amyl amines are mentioned. In addition to ordinary hydrazine organic hydrazines in which some of the hydrogen atoms are replaced by organic radicles may be employed. Wetting agents, such as butyl alcohol, tertiary amyl alcohol, cyclohexanol, soaps, sulphonated oils, sulphonated alcohols and saponin, and oils, fats and waxes such as olive oil, heavy mineral oil, glycerol stearate, glycol stearate, and paraffin wax may be added. Examples of numerical proportions are given.
Patent GB-621449-A (GB)
Title: Improvements in vehicle suspensions
IPC: B60G5/047
Filed: 1947-02-26
Abstract: 621,449. Vehicle suspensions. PRATI, V. Feb. 26, 1947, No. 5619. [Class 108 (ii)] In a vehicle of the kind which has two sets of rear wheels 18, 24, the axle of the rearmost set 24 is connected at each end by means including a spherical joint to the rear end of one of a pair of substantially horizontal levers 1, 2 which are pivotally connected together by a substantially vertical pivot, the second lever 1 of the pair being pivotally connected at one end, adjacent the said vertical pivot, to the vehicle frame 13, and at its other end 15 by a link 16 to the suspension spring 17 of the forward set of wheels 18. The lever 1 is pivotally mounted in a transverse shaft 12 fixed to the frame and also fits into the forked end of the lever 2, as shown in Fig. 2, each fork arm being bored to receive a bush 7 through which passes a pivot pin 6 which constitutes the vertical pivot of the levers 1, 2 and is screwed into the arm 1. At its rear end, the arm 2 has a spherical seating 19 which receives a ball 20 secured to the squared end 22 of the rear axle. The spherical seating 19 is bell-mouthed on opposite sides to allow movement of the axle, and is also in part formed in a removable cap 25.
Patent GB-1164429-A (GB)
Title: Method of Removing Copper-Containing Iron Oxide Scales from Iron
IPC: C11D3/34
Filed: 1969-02-03
Abstract: 1,164,429. Cleaning metals. HALLIBURTON CO. Feb. 3, 1969 [April 23, 1968], No.5721/69. Heading C7E. Copper containing iron oxide scale is removed from a ferrous surface using, e.g. sulphuric, hydrochloric or phosphoric acid, containing a complexing agent which is monomethyl or monoethyl thiourea. The solution may be agitated and heated to 120 to 160‹ F. and it may contain a nitrogen-containing corrosion inhibitor. The ferrous surface may first be contacted with a hot ammonia solution containing an oxidizing agent such as sodium bromate, ammonium persulphate or sodium chlorate.
Patent GB-1098722-A (GB)
Title: Improvements in or relating to methods of treating gases
Inventor: PERCIVAL GEORGE
IPC: B01J8/02
Filed: 1964-02-11
Abstract: In a process for converting methane or a methane-containing gas into CO and H2 by reaction with steam in the presence of a nickel catalyst, the gaseous reaction mixture is passed over a catalyst disposed on and attached to a shaped surface, the catalyst being heated by one or more radiant tubes in the same vessel as the catalyst, and also by the oxidation of part of the combustible gases by a supply of air or oxygen. The catalyst may form a layer on the outer surface of the radiant tube(s) or on the surface of one or more rods located longitudinally in an annular space between the radiant tube and the wall of the reaction vessel.  The catalyst temperature is maintained at 550-800 DEG  C. A suitable feed is a gas produced by passing a vaporized mixture of predominantly paraffinic hydrocarbons containing an average of 4-15 C. atoms per molecule with steam at a temperature above 350 DEG  C. through a bed of a nickel catalyst at normal or increased pressure such that the bed is maintained by the reaction at 400-600 DEG  C. The reaction tube(s) may be as illustrated in Fig. I or II of Specification 1,039,756.
Patent GB-801541-A (GB)
Title: An alkaloid and a process for its isolation
Filed: 1955-02-25
Abstract: The invention comprises (1) sparingly soluble salts of reserpine with heavy metal complex acids (e.g. the reineckate); and (2) the extraction of reserpine from Rauwolfia species by the use of a solvent completely miscible with water, without using a weakly polar or non-polar solvent only partially miscible with water; the reserpine is obtained as a salt which may if desired be converted into the free base.  The reserpine salt may be obtained from the extract by adsorption or crystallization, there being preferably chosen a sparingly soluble salt such as the nitrate, reineckate, phosphotungstate, phosphomolybdate, mercuri-iodate, chloride, sulphate, picrate, picrolonate, perchlorate or a sulphonate, e.g. helianthate.  The salt is made by double decomposition or by adding the appropriate acid to the extract, if desired in the presence of a carrier such as diatomaceous earth. Adsorption may also be carried out by chromatography, e.g. on a cellulose column.  Purification may also be effected by liberating reserpine base from the salt by treatment with alcoholic ammonia or a basic adsorption agent such as alumina.  The reserpine can then be purified by further adsorption and/or crystallization. Examples show the process applied to the roots of R. serpentina and R. vomitoria, reserpine being obtained as nitrate and reineckate respectively.