baber/WOPTO huggingface dataset:
Patent GB-1106498-A (GB)
Title: Method of and apparatus for producing a continuous tobacco stream
IPC: A24C5/18
Filed: 1965-06-18
Abstract: 1,106,498. Feeding tobacco. K. KORBER. 18 June, 1965 [8 July, 1964; 1 Sept., 1964], No. 25848/65. Heading A2C. A method of producing a continuous coherent tobacco stream from a comparatively wide tobacco fleece consisting of tobacco fibres fed transversely to the path of the stream is characterized in that the mutual relative positions of the fibres are maintained until the tobacco stream is formed and the fleece is transferred directly on to a conveyer belt for the tobacco stream, the end of the fleece moving towards the zone when the tobacco stream is formed being disposed obliquely to the tobacco stream being conveyed on the belt away from the zone on the belt. The fleece is conveyed on a carrier which passes over a roller 2, the longitudinal axis of which is inclined at an angle a to the feed direction of the stream 13 on an endless band 8. In the embodiment shown the band 8 passes around vertical rollers and the rod is formed between the band 8 and a second band on the other side of the stream away from the region of the fleece carrier, and between upper and lower bands 14 and 17, a paper strip 22 being carried by the lower band 17. Suction is applied to the band 8, which is perforated, in the region of the fleece carrier and in this region also blower nozzles may be provided to assist in transferring the fleece from the carrier to the band 8, Fig. 3 (not shown). In further embodiments the band 8 may revolve around horizontally disposed rollers. In these embodiments the fleece is fed on to the band 8 vertically, either upwardly on to the lower run, Fig. 6 (not shown) or downwardly on to the upper run, Fig. 7 (not shown), or the fleece is fed horizontally on to the lower run of the band 8, Fig. 8 (not shown).
Patent GB-816300-A (GB)
Title: Bismuth salts and their preparation
Inventor: DAVIES AUSTEN EMLYN
IPC: C07F9/94
Filed: 1956-08-24
Abstract: The invention comprises bismuth salts of aliphatic a -amino carboxylic acids and the preparation thereof by reacting moist bismuth hydroxide with a solid aliphatic a -aminocarboxylic acid. Preferred acids are glycine, alanine, valine, norvaline, lipine, arginine and glutamic acid.  In examples, bismuth hydroxide, as a moist gel and prepared from an acid solution of the nitrate by the addition of ammonia, is mixed with glycine to give bismuth dihydroxy glycinate, and bismuth triglycinate or with glutamic acid to give tetrahydroxy dibismuth glutamate.  The moist bismuth hydroxide may be prepared by treating the sulphate or the chloride with sodium hydroxide or ammonia, and the final bismuth amino acid salt as a gel is preferably spray dried to form a powder.
Patent GB-792875-A (GB)
Title: Automatic sphygmomanometer
IPC: A61B5/0225
Filed: 1955-09-12
Abstract: 792,875. Automatic sphygmomanometers. GILFORD, S. R. Sept. 12, 1955 [Sept. 30, 1954], No. 25988/55. Class 81 (2). An automatic sphygmomanometer has means for recording the diastolic and systolic pressures and for differentiating between desired signals and undesired noise. A receiver 3 is filled with air through a pipe 1 and valve 2 and is connected to a cuff 4 which is applied to the patient's arm, and the characteristic sounds in the artery, as the pressure rises above diastolic pressure and falls below systolic pressure, are detected by a contact microphone 11 strapped. to the arm. Slight variations in pressure, arising from the patient's pulse, are detected by an air jet directed on a thermistor 6. In order to shorten the overall time of a test the approximate diastolic pressure is determined by usual methods and a pressure-controlled valve 33 is set to close as this is approached and, by this means, the reservoir pressure is built up rapidly through the valve 33 which closes shortly before the actual measurement takes place, allowing the pressure to rise more slowly, through controlled valve 2, during the test. Thereafter, the pressure is increased slowly until the diastolic pressure is reached and, at this point, sounds are received by the microphone and the resultant voltages are passed through an amplifier 12, a band-pass filter 21 and a delay circuit 22 (to compensate for the delay in the receipt of the air pulse) and a pulse shaping multivibrator 23 to a comparator circuit 9, which also receives pulses from the thermistor 6 through amplifier 8 and shaping multivibrator 24, and which only passes on a pulse if a sound pulse and pressure pulse are received together on two successive pulse beats. By this means the device is not actuated by spurious sounds. The pulse passes through a further shaping multivibrator 26 and gating circuit 27, actuated by a control circuit 13 to a unit 31 which momentarily opens a valve 16 to allow the pressure to be indicated on a gauge 17. At the same time valve 2 is closed by circuit 32 to prevent rise in pressure during this operation. The pressure is then allowed to rise to a point above the systolic pressure and then allowed to fall, by opening valve 18, until again, on reaching the systolic pressure, arterial sounds are received by the microphone 11, whereupon under control of unit 13, gating circuit 29 and control unit 38, a valve 19 is opened to impress this pressure on a gauge 20, charging valve 2 being again closed while this is being done. Finally a valve 39 is opened by the circuit 38 to discharge the pressure reservoir to atmosphere at the end of the test.
Patent GB-361015-A (GB)
Title: Improvements relating to epicyclic gearing
IPC: F16H1/32
Filed: 1931-02-19
Abstract: 361,015. Epicyclic toothed gearing. SODDY, F., 131, Banbury Road, Oxford. Feb. 19, 1931, No. 25992. Divided on 358,128. [Class 80 (i).] In epicyclic toothed reduction gearing of the eccentric type in which externally or internally toothed planet-wheels 4, 5 rotatable on eccentrics 2, 3 on the driving-shaft A gear with internal or external teeth 6, 7 on a drum 8, pins 25, 29 engage circular holes 28, 27a on the planets 3, 4 and similar holes 40, 27, 26a on rings 9, 24, 10 secured by bolts 11 to the shaft B. The diameters of the holes are equal to the maximum eccentricity of the planets plus the diameter of the pins. The pins thus. roll on the peripheries of the holes without sliding action, and are formed slightly convex at their ends to engage retaining plates 9a, 10b by point contact only. The bolts 11 pass freely through additional holes 13 in the planet-wheels. The drum 8 shown may be stationary, when the shaft B is driven reversely, or the shaft B may be stationary, when the casing is driven forwardly.
Patent GB-303468-A (GB)
Title: Improvements in or relating to the manufacture of white titanic acid
IPC: C01G23/053
Filed: 1927-10-04
Abstract: 303,468. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Oct.. 4, 1927. Titanic acid.-White titanic acid which is not discoloured by heating to incandescence is precipitated by hydrolysis of titanium solutions in presence of a sufficient quantity of a weak reducing agent such as sulphurous acid or sodium sulphite, which will not reduce tetravalent titanium to the trivalent state, to reduce not only all ferric iron present to the ferrous state, but also all the other oxidizing agents, other than tetravalent titanium, present in the solution, such as dissolved air. To prevent the iron being reoxidized, a small amount of the reducing agent should be present during the washing of the precipitate, and this may be added to the water used for washing. In a modification, a strong reducing agent such as iron may be used in any quantity short of that which would cause reduction of the tetravalent titanium, the reduction being completed and reoxidation of the iron being prevented by the weaker reducing agent.
Patent GB-145332-A (GB)
Title: Process for the production of ornaments and inscriptions upon artificial stone
IPC: B44C1/26
Filed: 1919-10-27
Abstract: 145,332. Lieback, R. Oct. 27, 1919. Ornamenting.-Consists in producing inscriptions and designs on artificial stone by cutting out the letters b and the design a from a plate of slate by sand-blasting, and embedding the plate in the stone so that the stone fills the apertures, the surface of the ornamented plate being finally polished. Slate of various colours may be employed, and parts of the design may be gilded or coloured. Connecting-bars, covered by the artificial stone, may be employed to connect various parts of the slate pattern-plate.
Patent GB-1028764-A (GB)
Title: Improvements in fluid control valves
Inventor: GURNER JOHN RAYMOND
IPC: F16K41/02
Filed: 1962-07-24
Abstract: 1,028,764. Valves. PLESSEY CO. Ltd. July 24, 1963 [July 24, 1962], No. 28328/62. Heading F2V. A movable closuremember 4, which has a resilient insert 5 that co-operates with a seat 3, is freely rotatable upona stem 6 formed with a threaded portion 8 that engages a screwed sleeve 9 which is prevented from rotation by a peg. Stem seals 10, 13 are provided above and below the sleeve. Continued rotation of the stem 6 after the valve is closed or opened causes downward or upward movement of the sleeve 9 whereby the seal 10 or 13 is compressed to provide improved sealing around the stem. The stem assembly may be withdrawn as a unit to enable the seals to be replaced.
Patent GB-1444199-A (GB)
Title: Method of producing a silver cadmium oxide electrically  conductive composite material
IPC: C22C1/10
Filed: 1974-06-14
Abstract: 1444199 Ag-CdO composite material SQUARE D CO 9 April 1975 [14 June 1974] 26406/74 Heading C7D A Ag-Cd O electrically conductive composite material is produced by mixing cadmium metal powder and silver metal powder, heating the mixture in a mildly reducing atmosphere such that oxidation of the cadmium metal is prevented to produce a silver-cadmium alloy in powder form and internally oxidizing the alloy powder to form cadmium oxide. The powder mixture may comprise silver powder particles of less than 350 British Standard mesh and may be produced in a two stage mixing process with an intermediate sieving step and may be heated at 200 to 700‹C in an atmosphere of 97%N 2  3%H 2  and oxidized at a temperature of 180‹C to the melting point of the alloy in air or oxygen. The resulting internally oxidized powder may contain up to 30 wt. per cent Cd O particles the majority of which are less than or equal to 20 microns and may be compacted at 5 to 50 tons per square inch sintered in air, oxygen, inert gas, vacuum or mildly reducing atmosphere such that the Cd O is unaffected at 600 C to the melting point of the powdered material, carried at 60 tons/square inch, resintered, recarried, hot or cold-rolled or extruded into strip or wire form and formed into contact pads or rivets.
Patent GB-183749-A (GB)
Title: Improvements in tools for withdrawing jammed cartridge cases from guns using fixed ammunition
IPC: F42B33/06
Filed: 1921-10-06
Abstract: 183,749. Graham, J. Oct. 6, 1921. Cartridge -extracting tools.-A tool for withdrawing jammed cartridge cases comprises a screwed rod a provided with a solid primer-shaped head b which is screwed into the primer hole in the base of the cartridge, an axial pull being exerted on the rod by screwing a lever-nut d against a thrust-bar c which bears on the face of the breech. When the case does not protrude from the breech, a straight-bar g with centring- lugs may be used in place of or in conjunction with the semi-circular bar c.
Patent GB-232131-A (GB)
Title: Improvements relating to the valve gear of steam engines
IPC: F01L31/02
Filed: 1924-11-07
Abstract: 232,131. Galloways, Ltd., and Pilling, H. Nov. 7, 1924. Releasing valve gears. - In reversing steam engines with trip valve-gear driven by a divided lay shaft which is angularly adjusted relative to the crank-shaft by epicyclic or sun-and-planet gear to effect the reversal, means actuated by the reversing-gear for ensuring a late cut-off are provided to avoid danger due to the compression of the steam in the cylinder when the engine is running in opposition to the steam pressure. The divided lay shaft a, b has eccentrics d, e operating the trip gears, and the two parts are connected through pinions f, g and a planet wheel h carried by an adjustable cage j upon which is mounted a cam m which through arms n, p, q, s affects the position of a weighted catch lever x mounted on a governor arm v. The lever x normally engages a lever z which is connected to a weighted lever 3 and controls the position of lever 4 which releases the catch 7 of the trip gear, Fig. 4, according to the position of the governor. Upon the lever x being released, the lever 4 is thrown out of action, and the valve operated by the eccentric d given its latest cutoff.
Patent GB-709550-A (GB)
Title: Separation of substances having different degrees of ionization
IPC: B01J47/00
Filed: 1952-10-23
Abstract: A method of separating a highly ionized solute having an ionization constant of at least 5X10-2, e.g., sodium chloride from a less ionized solute that is capable of being absorbed by an ion exchange resin and having an ionization constant not exceeding 2X10-1 and not more than 70 per cent of that of the highly ionized solute, e.g., formaldehyde comprises feeding to a water immersed bed of an ion exchange resin having an ion common with an ion of the highly ionized solute, e.g., the sodium salt of a sulphonated phenal-formaldehyde resin, an aqueous solution of such solutes and thus displacing the water from the resin, thereafter feeding water to the bed to displace a further amount of liquid therefrom and collecting successive fractions of the displaced fluent liquid which contains a major portion of the highly ionized solute, and a subsequent fraction containing a major portion of the less extensively ionized solute. Other suitable cation exchange resins include the sodium and hydrogen forms of copolymers of monovinyl aromatic hydrocarbons and polyvinyl aromatic hydrocarbons, and carboxylated resins. These resins rapidly absorb slightly ionized compounds of relatively small molecular size, e.g., methyl alcohol, ethylene glycol, and acetic acid as distinct from suchroses which are not absorbed.  Anion exchange resins include resinous condensation products of phenol, formaldehyde and alkylene polyamines; the resinous condensation products of phenol, alkylene polyamines and ammonia or an ammonium salt; and water-insoluble resinous quaternary ammonium bases and salts thereof.  The volume of mixture fed to the resin bed is less than the volume of water initially absorbed and the resins used are substantially insoluble in the liquids in which they are employed.  The cation resins in the acidic form ionize to an extent such that the addition of a 10 gram portion thereof to 100 ccs. of a 0.1 N aqueous sodium chloride solution brings the pH value of the solution to less than 3. Similarly the anion exchange resin in the basic form ionizes to an extent such that the addition of a 10 gram portion to 100 ccs. of a 0.1 N aqueous sodium chloride solution brings the pH value of the solution to greater than 11.
Patent GB-190287-A (GB)
Title: Improvements in the manufacture of pad locks
IPC: E05B67/10
Filed: 1921-10-10
Abstract: 190,287. Pinson, F. W. Oct. 10, 1921. Padlocks.-In padlocks of the type in which the casing is formed of a piece of metal tubing with flat top and bottom end plates, to which are fastened a flat plate carrying the lock mechanism, a sheet metal piece is inserted to form a guide for the key. This guide member D is bent as shown in Fig. 5, and fits over the upstanding parts B<2>, A<3> of the flat plate A<2> supporting the locking-mechanism. Shoulders D<1> on the guide engage the piece B<2> and take up the thrust of the. key C<1>, the end of which enters a hole in the bent-over end of the guide, rendering fixing by rivets unnecessary.
Patent GB-1456844-A (GB)
Title: Preparation of transition metals
IPC: C22B3/16
Filed: 1973-06-05
Abstract: 1456844 Producing transition metals in microcrystallite or amorphous form D B SMITH and A GILBERT 2 Aug 1974 [5 June 1973] 26769/73 Heading C7D Transition metals (defined as Ag, Cu, Au, Pt, Pd, Rh, Ru, Fe, Co, Ni, Mn, Cr, Mo, W, Re, Ti, Zr and Hf) are prepared in microcrystallite or amorphous form by reacting at least one compound of the metal with an aryl-metallic compound, containing an alkali or alkaline earth (including Mg) metal and an aromatic ring structure, in a solvent, there also being present a polymer to increase the viscosity of the solvent. Suitable polymers given are polystyrene, polyvinylnaphthalene, polytetrahydrofuran, and suitable solvents are ethylene glycol, diethylene glycol, and diglyme and/or tetrahydrofuran. The metal compound may be a salt, acid or ligand complex, e.g. an acetyl acetonate. The arylmetallic compound is preferably an adduct of an alkali or alkaline-earth metal with an aromatic compound, as set forth in Specification 1317811, examples of which are given .
Patent GB-172439-A (GB)
Title: Improvements in measuring instruments for gear wheel teeth
IPC: G01B5/20
Filed: 1920-09-20
Abstract: 172,439. Sykes, W. E. Sept. 20, 1920. Surface and outline gauges.-A gauge for testing and measuring gear teeth comprises two jaws with inclined faces co-operating with the movable, member of a dial gauge indicator. A sliding calliper gauge has the faces f, f<1> of its jaws a,. a<1> inclined at the pressure angle of the teeth to be measured and a movable member e of a dial gauge indicator C works between the jaws as shown. Used in conjunction with a master gauge block, the instrument can be used for comparing teeth of the same pitch, or, used with a master gauge block of known dimension for involute teeth and allowing proportional movement between the jaws a<1> and the member e, the gauge can be used for measuring teeth of pitches different from that of the master gauge.
Patent GB-258107-A (GB)
Title: Walking stick seats and the like
IPC: A45B5/00
Filed: 1925-10-27
Abstract: 258,107. Lowe, Z. Oct. 27, 1925. Addition to 239,433. Folding seats. - The walking-stick seat of the parent Specification is modified by providing a tubular fitting a on the upper end of the lower stick portion, and a wood screw b on the lower end of the upper stick portion. A washer c may be provided to engage the ferrule d and form a flange.
Patent GB-623645-A (GB)
Title: Improvements in attaching parts to wooden poles
IPC: H02G7/20
Filed: 1946-09-09
Abstract: 623,645. Posts; crossarms. MANSON, M. W. Sept. 9, 1946, No. 27008. Convention date, Sept. 14, 1945. [Class 20(i)]  To secure crossarms or other members to wooden poles, clamp elements which collectively form a cylindrical or partcylindrical assembly encircling the pole are employed, the clamp elements having pointed pins on their inner faces to penetrate the surface of the pole. A tubular cross arm 6, Fig. 1, may be welded to a saddle-piece 7 which may be welded to one clamp element 3, the other element 31 having lugs 8 to receive clamping bolts 9 passing through the crossarm, one on each side of the pole. Spikes 4, parallel to the direction in which the elements are drawn together when clamping, are provided in the clamps this disposition being stated to minimise damage to the wood, by separating the wooden fibres rather than cutting them. Lugs 14 for guys &c. may be provided. In a modification, to make use of the usual back strap 11, Fig. II, and cross arm fitting, the saddle-piece 7 is not welded to the clamp element 3, the clamp element constituting only a bearing sleeve for the saddle-piece and back-strap. The projections 4 extend through the clamp elements and have extensions 12 forming ledges to take the weight of the saddlepiece and back-strap. In a further modification the projections are formed as separate screwed spikes, which are screwed into the pole after the clamping of the crossbar, locknuts being provided.
Patent GB-699635-A (GB)
Title: Improvements relating to aircraft
IPC: B64C29/00
Filed: 1949-10-21
Abstract: 699,635. Aeroplanes. ECKINGTON, F. J. Jan. 22, 1951. [Oct. 21, 1949] No. 27027/49. Class 4. An aeroplane has wings 2 of small span in comparison with their chord and of increasing thickness and width from nose to tail of the machine, the wing roots being the thickest sections from which the upper and lower surfaces converge and meet at the wing edges, the wings commencing to taper at a 'section A forward of the elevators 4. Retractable ailerons 3 are fitted at the leading edges of the wings and an anti-roll flap 5A is mounted at the top edge of a fin 5. A number of wing plan forms and control surface arrangements are described. Specification 652,248 is referred to.
Patent GB-633348-A (GB)
Title: Improvements in devices for cleaning or clearing sinks and the like
IPC: E03C1/308
Filed: 1946-09-10
Abstract: 633,348. Clearing waste pipes &c. SUAREZ, J. J. Sept. 10, 1946, No. 27093. [Class 99(ii)] A hand-pump for clearing sinks, &c., comprises a metal cylinder a in which is a plunger fixed to a handle g, and a rubber cone b fitted on the end of the cylinder so that its top abuts against a metal ring a<SP>1</SP> welded or soldered to the cylinder, the cone being of such length as to expose “-inch of the cylinder. The plunger comprises a cupwasher secured to a rod e passing through a brass bush d fitted in a plug c.
Patent GB-1049287-A (GB)
Title: New polyethers and polyurethanes
Inventor: LANGRISH JOHN
IPC: C08G18/50
Filed: 1962-07-16
Abstract: Novel polyethers of formula <FORM:1049287/C2/1> wherein R, R1, R11 and R111 each represent H, alkyl or an hydroxyl-ended polyether group, at least two groups being the latter, and wherein the benzene rings may optionally contain alkyl, alkoxy or halogen substituents, are prepared by reacting a diaminodiphenylsulphone in which not more than two of the H atoms have been replaced by alkyl groups with a 1,2-alkylene-oxide. Specified alkylene oxides are propylene, ethylene, butylene and styrene oxides and glycidol.  In the example, propylene oxide is condensed with 4:41-diaminodiphenylsulphone.ALSO:Polyethers, suitable for preparing polyurethanes, of formula <FORM:1049287/C3/1> wherein R, R1, R11 and R111 each represent H, alkyl or a hydroxyl-ended polyether group, at least two groups being the latter, and wherein the benzene rings may optionally contain alkyl, alkoxy or halogen substituents, are prepared by reacting a diaminodiphenylsulphone in which not more than two of the H atoms have been replaced by alkyl groups, with a 1,2-alkyleneoxide. Specified alkylene oxides are propylene, ethylene, butylene and styrene oxides and glycidol.  Polyurethanes are prepared by reacting the above polyethers with polyisocyanates, preferably in the presence of a cross-linking agent (e.g. water, 4:41-diaminodiphenylsulphone, 4:41 - diamino - 3:31-dichlorodiphenylmethane, ethyleneglycol, mono-and di-ethanolamine and dimethyl-p-nonylphenol. Suitable isocyanates, foaming agents and fillers are specified.  In the example, propylene oxide is condensed with 4:41-diaminodiphenylsulphone; the product is mixed with water and butylated urea-formaldehyde resin and phosgenated diaminophenylmethane.ALSO:Polyurethanes, suitable for coating, wood, rubber, metals, glass and fabrics, are prepared from novel hydroxyl-ended polyethers of formula <FORM:1049287/B1-B2/1> wherein R, R1, R11, R111 represent a hydrogen atom, alkyl group or a hydroxyl-ended polyether chain, not more than two being either hydrogen or alkyl groups, the benzene rings may be optionally substituted by alkyl, alkoxy or halogen groups by reaction with polyisocyanates, and preferably cross-linking agents in an inert solvent.  The solution obtained is applied by spraying, brushing, dipping, flowing or by roller and preferably left to dry in the air at room temperature but may be heated at temperatures between 40 and 100 DEG C.  Other ingredients such as pigments, fillers and flowing out agents such as nitrocellulose may be added before application. The example describes the preparation of a polyurethane from a polyether derived from 4 : 41-diaminodiphenylsulphone and propyleneoxide, butylated urea formaldehyde, and water in cyclohexapone/methyl iso-butyl ketone and diphenylmethanediisocyanate in xylene.  One coat of the solution was applied to steel panels by spinning, and to steel rods by dipping, and dried at room temperature.