baber/WOPTO huggingface dataset:
Patent GB-1428101-A (GB)
Title: Gas turbine system
IPC: F23R3/40
Filed: 1973-02-16
Abstract: 1428101 Gas turbine plant ENGELHARD MINERALS & CHEMICALS CORP 16 Feb 1973 [18 Feb 1972] 7869/73 Headings F1G and F1L The invention relates to a gas turbine plant comprising an air compressor 10, the air-flow from the compressor being divided into two streams by the air proportioning valve 24. The first stream of air flowing through line 28 is mixed with a carbonaceous fuel which when burned with a stoichiometric amount of air has a flame temperature of at least 3300‹F; the fuel is supplied through line 36 under control of valve 32 which acts in dependence on flow of air through line 28 as sensed by the metering unit 30 such that the fuel/air mixture formed has a substantially constant fuel/air ratio. The fuel/air mixture passes to a combination zone 26 at a velocity which is greater than the maximum flame propagating velocity whereby the fuel is at least partially oxidized at a temperature of 1500 to 3300‹F. The at least partially oxidized fuel/air mixture is then passed to a second mixing zone 48 where it is mixed with the second portion of compressed air passing through line 46. The mixture then passes to the turbine 14. The combustion zone 26 comprises a solid catalyst 38, also an igniter 44 which is utilized at starting, being subsequently de-energized.
Patent GB-275121-A (GB)
Title: Apparatus for cutting cheese or the like
IPC: B26D1/547
Filed: 1927-03-22
Abstract: 275,121. Schedwin, E. F. March 22, 1927. Addition to 261,217. Butter and cheese cutters.-The cutting appaxatus described in the parent case is modified by (1) making the knife 15 movable relatively to the wire and bow-shaped frame, for example by pivoting it at 20 and either spring-mounting or counterweighing the arm 22, and (2) by providing an additional knife 24 for severing the under side of the rind. The latter knife is mounted slidably on the bow-shaped frame and guided by slots 31 on the fixed table.
Patent GB-948053-A (GB)
Title: Improvements in ear protectors
Inventor: SWORTH WILLIAM BLANCHARD WAD
IPC: A61F11/14
Filed: 1960-03-07
Abstract: 948,053. Earpieces. DAVID CLARK CO. Inc. March 7, 1960, No. 7955/60. Heading H4J. An ear protector comprises a substantially sound-proof shell 10, Figs. 1, 3, carrying a diaphragm 24 in which is mounted a transducer 26 which, in use with the ear protector surrounding the outer ear, converts sound energy received from the ear canal into electrical energy for transmission to a point outside the shell 10. The transducer may also be used as an earphone, a switch 32 switching from one function to the other. A band 14 of soft material contacts the head of the user. The shell 10 is in two parts secured together at flanges 18 by screws 20 or cement. The diaphragm 24 is a leather disc and is fixed between the flanges 18. The transducer 26 is held in the diaphragm 24 by a flange 28 on the transducer and a retaining ring 29. The shell 10 is lined with sound-deadening material. In a modification, Fig. 7, the shell 10 contains a microphone 36 and a receiver 38.
Patent GB-565993-A (GB)
Title: Improvements in or relating to apparatus for removing plaster from human or animal bodies
IPC: A61F15/02
Filed: 1944-05-19
Abstract: 565,993. Apparatus for removing surgical plasters. MULLETT, G. E. May 19, 1944, No. 7963/43. [Class 81 (ii)] An apparatus for removing plaster from a human or animal body comprises a cutter 2, secured to one end of a spindle 3 mounted at opposite ends in bearings 9, 10 in a casing 4 to which is secured a manipulating handpiece 1, the cutter being partly enclosed in a housing 8, provided at one end of the casing 4 and being arranged in close proximity to a metal or other guide 6 secured to a curved blade attached to the housing 8. The cutter 2 is driven by a flexible shaft 12, which engages the spindle 3 by a key-and-groove connection 13, 14 and is held rotatably to the casing 4 by a cap 15 screwed thereto, a ball bearing 16 being provided. The motor 11, which drives the shaft 12, may be driven directly from mains or through a transformer, suitable reduction or multiplying gear being provided between the motor 11 and cutter 2. The cutter may be replaced by a grinding wheel with a periphery of carborundum &c.
Patent GB-841515-A (GB)
Title: Improvements in or relating to the production of laminated sheet material suitable for use in the production of reproduction tracing cloth
Inventor: DUNBAR CHARLES
IPC: G03C1/76
Filed: 1955-03-21
Abstract: 841,515. Laminates. WINTERBOTTOM BOOK CLOTH CO. Ltd. June 21, 1956 [March 21, 1955], No. 8101/55. Class 140. A laminate comprises a thin sheet of textile fabric impregnated and coated with a polyester composition which has been subsequently cured and having firmly adhering to one or both faces of said sheet a thin preformed selfsustaining film of an acetone-soluble cellulose acetate of combined acetic acid content 52- 59.5%, cellulose aceto-propionate or cellulose aceto-butyrate. The polyester composition comprises the condensation product of a dibasic acid (e.g. maleic) and a dihydric alcohol, e.g. mono-, di- or tri-ethylene glycol, at least one of which is unsaturated, and a polymerizable monomer, e.g. styrene. The polyester should have a molecular weight below 1500, preferably between 700 and 1200. The textile fabric is a fabric woven from natural or synthetic yarns or filaments or from glass yarns or filaments or bonded-fibre fabric or cross-laid yarns or filaments. Fabrics of cotton, rayon, nylon and linear polyester yarn are suitable. A light-sensitive coating may be coated on to the cellulose ester surface of the laminate. The laminate may be made by continuously forwarding the impregnated textile sheet in which the resin composition is in the uncured state between overlapping impervious sheets, at least one of which is a sheet of one of the cellulose esters specified above, and passing the sandwiched sheets so formed through a heating zone to effect curing of the polyester composition and adhesion of the cellulose ester to the impregnated sheet. The second impervious sheet may be a second sheet of the cellulose ester which remains laminated to the other layers or may be a sheet of regenerated cellulose which is stripped from the laminate after curing. Specifications 806,912 and 817,891 are referred to.
Patent GB-991133-A (GB)
Title: Stabilization of fluid suspensions of filler grade clay
IPC: C04B33/13
Filed: 1962-03-02
Abstract: Stable aqueous suspensions of clay having a solids content of 55-75%, at least 35% of the clay particles being larger than 2 m , and 20-60% being larger than 5 m , are prepared by dispersing the clay in water with any deflocculating agent to form a slurry and increasing the viscosity of the slurry at least 25% but not more than 800% with any thickening agent. Preferably, the pH of the slurry is above 5, the viscosity about 500 centipoises and at least 20% of the clay particles finer than 2 m .  The suspension may be prepared by adding the clay to water containing the deflocculant and then adding the thickener, or by adding the clay to water containing both deflocculant and thickener. Deflocculating agents referred to are caustic soda, soda ash, sodium silicate, ammonia, a sodium salt of a polymeric carboxylic acid, a sodium salt of a condensed naphthalene sulphonic acid, tetra- and trisodium phosphate, tetrasodium pyrophosphate, sodium hexametaphosphate, sodium hydrogen pyrophosphate and sodium tripolyphosphate.  Thickeners referred to are swollen starches, soaps, cellulose derivatives, kayara gum, guar gum, distearyl dimethyl ammonium chloride, sodium polyacrylate and sodium alginate.
Patent GB-418364-A (GB)
Title: Process for delaying fermentation and putrefaction in perishable organic matter
IPC: A23L3/3418
Filed: 1933-03-17
Abstract: Crops including vegetables, hops, and green fodder such as maize, oats, barley, millets, grasses, clovers sorghums, alfalfa, lucernes, vetches, beans, peas, rape, and other succulent vegetable materials eaten by herbivorous animals are preserved by removing the free and dissolved oxygen therefrom by means of a vacuum pump, the pressure reduction and the temperature used being so co-ordinated that the oxygen is substantially completely removed at a pressure just above that at which the water content of the materials boils, the materials being subsequently kept in an atmosphere of an inert gas or gases such as nitrogen. Preferably the evacuation is effected at 32-70 DEG C.  The treated materials may be stored at a low temperature.  Green fodder may be treated in the usual silos which are made airtight, e.g. in the case of concrete silos by applying boiled linseed oil, tar, paraffin wax or other pore-sealing material and by fitting the top and bottom openings with covers provided with airtight packing material such as rubber or with felt impregnated with oil.  Iron silos may be protected against corrosion by coating with boiled linseed oil.  The silos may be kept at low temperature by trickling water over them.
Patent GB-313224-A (GB)
Title: Improvements in and relating to electrically operated sound transmitters
IPC: H04R1/34
Filed: 1928-03-17
Abstract: 313,224. Baron, H., (Electroacustic Ges.). March 17, 1928. Sound - directing appliances. - A transmitter for generating a uniplanar sound field comprises two annular sources 10, 11 in parallel planes half a wavelength apart, and fed from the same oscillator 4. The diameter of each source should not exceed “ of the wave-length of the operating freqnency, and the length of the path from the oscillator to either source is an odd multiple of the quarter wave-length, preferably ¥. The cross-sections of the passages leading to the sources are arranged so as to avoid sound losses at the bends as far as possible.
Patent GB-609591-A (GB)
Title: Improvements in silos for ensilage of green-forage and other vegetable forages
IPC: A01F25/16
Filed: 1946-03-18
Abstract: 609,591. Preserving crops in silos. TONNING, J. March 18, 1946, No. 8333. Convention date, Jan. 12, 1945. [Class 5(i)] Materials for ensilage are compressed hydraulically. Channelled uprights 1 are recessed at intervals to receive locking bars 5 which take the upthrust of a piston 9 working in a cylinder 2. The spherical base of the cylinder is seated in an abutment carried by a plate 15 covering the material to be compressed. Pressure is supplied by a pump 13. A valve 11 is opened by the cylinder cover to prevent the piston being pushed out of the cylinder and puts the cylinder into communication with a container 8. Pump pressure is disconnected by the two-way valve 14, the bars 5 are lowered, and pressure on the plate re-established until the compression of the material is complete.
Patent GB-251082-A (GB)
Title: Improvements in wringing and mangling machines
IPC: D06F45/00
Filed: 1925-03-28
Abstract: 251,082. Entwisle & Kenyon, Ltd., Kenyon, R. W., and Redfearn, J. P. March 28, 1925. Pressure arrangements for mangles .and wringers. - In spring units such as described in Specification 251,070 having two or more separated springs D compressed between upper and lower plates, pressure is applied by a cam G, eccentric or toggle device acting upon the top compression plate.
Patent GB-950024-A (GB)
Title: Machine tool carriage
IPC: B23Q1/26
Filed: 1962-03-05
Abstract: 950,024. Working of metal; machine-tool details. E. C. HAHN, [trading as INDEXWERKE KOMM.-GES. HAHN & TESSKY]. March 5, 1962 [March 16, 1961], No. 8408/62. Heading B3B. A turret-slide 10 for an automatic lathe is constructed from light metal such as aluminium, magnesium or an alloy of these metals. The wear surfaces at 26 and 40 are coated with a thin, hard metal layer such as molybdenum. The sliding surface 27 of the limit slide and the machine base 12 are provided with complementary longitudinal grooves.
Patent GB-1062094-A (GB)
Title: Improvements in or relating to fuel cells of the aqueous electrolyte type
IPC: H01M8/00
Filed: 1964-02-28
Abstract: 1,062,094. Fuel cells. SOCIETE GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM)- Feb. 28, 1964 [March 1, 1963], No. 8430/64. Heading H1B. A fuel cell has at least one aqueous electrolyte and at least one ion-exchange membrane, with one electrode in contact with an electrolyte. Various modifications are disclosed but each complies with the above and also with the requirements that the aqueous electrolyte must (1) be (a) a large anion strong acid, (b) a large cation strong base, or (c) a buffered electrolyte; (2) if in contact with a cationic membrane contain only cations other than H<SP>+</SP> having a negligible transport number across the membrane ; (3) if in contact with an anionic membrane contains only anions except OH- having a negligible transport number across the membrane; and (4) be at a different pH than the electrolyte contacting the other electrode or than an ion-exchange membrane functioning as such an electrolyte.
Patent GB-1132653-A (GB)
Title: Pyridine derivatives
Inventor: PARTYKA RICHARD ANTHONY
IPC: C07D213/68
Filed: 1966-02-25
Abstract: 1,132,653. Pyridine derivatives. BRISTOLMYERS CO. 25 Feb., 1966 [26 Feb., 1965], No. 8493/66. Heading C2C. The invention comprises compounds of formula wherein each R<SP>1</SP> is a hydrogen atom or a C 1-10  alkyl group, each R<SP>2</SP> is a C 1-10  alkyl group or a C 3-6  cycloalkyl group and R<SP>3</SP> is a hydrogen or halogen atom or a trifluoromethyl, C 1-10  alkyl or C 1-10  alkoxy group, non-toxic acid addition salts thereof, and their preparation by reaction of a 2,6-dimercaptomethyl-pyridine with (a) an alkyl or cycloalkyl isocyanate, or a precursor thereof, for example an acid azide, (b) a substituted carbamic acid halide or ester, or (c) phosgene and an amine. 2,6-Dimercaptomethyl-pyridine is prepared by reaction of 2,6-dihydroxymethyl-pyridine hydrochloride with thiourea and aqueous hydrobromic acid. The compounds of the invention have antiinflammatory activity and may be used in pharmaceutical or veterinary compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration. Other pharmaceutically active compounds may be present.
Patent GB-497785-A (GB)
Title: Improvements in or relating to the insertion of wire-rips in can-closures and apparatus therefor
IPC: B21D51/46
Filed: 1937-03-23
Abstract: 497,785. Opening cans. BOGNER, P. March 23, 1937, No. 8495. [Class 66] [Also in Group XXII] An end closure of a container which is positioned on and seamed to a body by parts 13, 15 is provided with an interrupted ridge into which a rip wire is mechanically fed. A gap 19 in a ridge 16 provides holes 20, 21 by which the wire enters and leaves the ridge. The wire may be soldered to the closure at one end and the free end may be formed into a loop or fitted with a handle. The ends of the wire projecting from the holes 20, 21 may be looped together and flattened to lie in the gap 19.
Patent GB-1144072-A (GB)
Title: Travelling grate
IPC: F27B3/00
Filed: 1966-02-25
Abstract: 1,144,072. Travelling grates; drying. ABEX CORP. 25 Feb., 1966 [1 March, 1965], No. 8519/66. Headings F4B and F4G. In a travelling grate of the drop link type for heating ore pellets, the grate bars 40 are pivotally mounted side-by-side on spaced transverse support rods 47 attached to drive chains, and each transverse grate section so formed is subdivided into two groups of bars each attached to a retainer bar 42. The latter has a pair of cylindrical lugs 72 engaging apertures 74 in a flange 75 extending downwardly from the upper rib 50 of the central grate bar, and an outer pair of lugs (73, Fig. 8), engaging similar flanges in the outermost grate bars. Between lugs 72 and 73 the bar 42 is formed with holes through which extend bolts 80, secured by nuts to a bracket 44 having recesses receiving the ends of said lugs 72, 73, and which also has three projections 48 formed with arcuate surfaces 49 engaging said rod 47. In a modification (Fig. 12) the grate elements are made in two parts and a similar modification (Fig. 19) has a retainer bar (152) formed with forwardly extending lugs (155) inserted into semicircular openings (158) formed in a transverse flange in the rear grate element (150). The grate is used (Fig. 1) in the drying (16) and preheating (20) sections of apparatus disposed between a pelletizing drum (12) and a rotary furnace (22). Hot waste gases from the latter are arranged to pass downwardly through the grate and material in the preheating section and then downwardly again in the drying section.
Patent GB-557943-A (GB)
Title: Improvements in or relating to drag-scraper plants
IPC: E02F3/54
Filed: 1942-06-22
Abstract: 557,943. Drag-scrapers. MITCHELL, F. G. June 22, 1942, No. 8560. [Class 78 (iv)] In a drag-scraper plant the supporting and guiding pulleys 44, 46 at the inner end, for the in-haul and out-haul runs 30, 32 respectively, are located on a vertical line 59 passing down within the plan area of the receiving hopper, container &c. 10. The pulleys 44, 46 swing about pivots in bearers 52, 53, 54, 55 projecting from a vertical pillar 34 carried on cross-beams 40, 42 located over the hopper 10, and the arrangement permits of an angular swing of the tail post of nearly 360 degrees, thus extending considerably the area of the dump 29 which can be dealt with. The hauls 30, 32 pass from the pulleys 44, 46 through tunnelled bearings 60 to a pair of co-axial pulleys 56, from which they extend respectively to winches 24, 26 located behind the head-stock structure 20. Two side-by-side pulleys may replace the separated pulleys 44, 46, and if the winches 24, 26 are disposed to one side of the centre line of the head-stock, the pulleys 56 are correspondingly orientated. The out-post may travel on circular rails having their centre at the hopper axis. Struts 36, 38 support the pillar 34.
Patent GB-745921-A (GB)
Title: Improvements in or relating to ropes
Inventor: BEAN REGINALD
IPC: D07B1/02
Filed: 1953-03-27
Abstract: 745,921. Ropes. PIRELLI-GENERAL CABLE WORKS, Ltd., Feb. 16, 1954 [March 27, 1953], No. 8585/53. Addition to 694,211 [Group XXXVI]. Class 109. A rope comprises in combination a central core 1 of non-electrically conducting material and a number of concentric layers of strands 3, 4, 5, 6 laid helically around the core, the layers being arranged in pairs and in each pair the strands of one layer are laid of opposite lay to the other, but equal in number and in angle of lay thereto. The angle of lay is preferably constant in the various layers. A layer of braided material 2 may be positioned between the core 1 and the layer 3 and a final biaided layer 7 may complete the rope.
Patent GB-1406463-A (GB)
Title: Process for polymerizing mono-olefinic hydrocarbons
IPC: C08F36/04
Filed: 1972-11-21
Abstract: 1406463 Allyl uranium compounds in monoolefin polymerization SNAM PROGETTI SpA 21 Nov 1972 [10 Oct 1972] 8595/75 Divided out of 1406461 Addition to 1246424 Heading C3P Monoolefins are homopolymerized or copolymerized with one another or with conjugated diolefin(s) in the-presence of allyl uranium compounds of the formula where the R's represent hydrogen or a hydrocarbon radical of up to 10 carbon atoms. Lewis acid cocatalysts may also be present. In examples, ethylene and ethylene/butadiene are polymerized in hexane in the presence of tetraallyl uranium and, in some cases, of AlEtCl 2  or T : Cl 4  as cocatalyst.
Patent GB-594154-A (GB)
Title: Stabilizing organo-siloxanes
IPC: C08K5/13
Filed: 1945-04-09
Abstract: The stability of organo-siloxanes, in particular against the action of heat, oxygen or small quantities of agents that tend to cause polymerization, is improved by the addition of a small quantity of an organic amine or an aromatic compound containing a hydroxyl group attached to a carbon atom of the aromatic ring and which may also contain amino groups.  Organic amines should be free from sulphur and phosphorus containing radicals.  Maximum effectiveness is obtained from organic amines containing a plurality of aromatic rings attached to the nitrogen atom and aromatic compounds containing a plurality of hydroxy groups. Organo-siloxanes may be substantially completely dehydrated and may contain up to three hydrocarbon radicals attached to silicon through carbon-silicon linkages and unhydrolysed radicals, e.g. halogen or alkoxy groups.  In examples: (1), (2), (3), (5), (8), (9) and (10) the viscosity of a liquid dimethyl silicone is measured at various lengths of time when heated alone and after the addition of p-aminophenol, p - hydroxy - N - monobenzylaniline, p - hydroxy-N-N1-dibenzylaniline, diphenylamine, 4-isopropoxy-, 2 : 4-diamino-, 4 : 41-dimethoxy - and 4 - hydroxy - diphenylamine, phenyl - 2 - naphthylamine, N : N-diphenyl-1 : 4-phenylene diamine, tetrahydrophenyl - 2 - naphthylamine, N - N - diphenyl - 1 : 2-ethylene diamine, N - (4 - hydroxyphenyl) morpholine, ethylphenyl ethanolamine, triamylamine, a -naphthol, b -naphthol, pyrogallol, 3-methyl-, p-tertiarybutyl-, p-cyclohexyl- and 4-phenyl catechol, 2-phenyl hydroquinone and 4-hydroxyphenylbenzyl ether; (4) the various lengths of time to produce gelation for a series of copolymers of mono- and di-methyl silicon oxides when heated alone and with p-aminophenol are given; (6) and (7) the effect of heating phenyl ethyl siloxane and phenyl methyl siloxanes alone and with p-aminophenol is measured by viscosity determinations.  The following are also mentioned as suitable stabilizers: isopropoxy- and 4-tolylamino-diphenylamines, 4 : 41-dihydroxy-, 4-hydroxy-41-methoxy-, 4-hydroxy-41-ethoxy-, 4-hydroxy-41-butoxy-, 4-ethoxy-, 4 : 41-ethoxy-, 4-ethoxy-41-butoxy-, 4-phenylamino- and 4-phenylamino-41-ethoxy-diphenylamine, phenyl-1-naphthylamine, N : N1-di-2-naphthyl-1 : 4-phenylenediamine, tertiary-butyl- and cyclohexyl catechols, pyrocatechol, gallic acid, hydroquinone, dibutyl resorcinols, resorcinol, phenyl, p - hydroxy - N - di - tolylanilines, p-hydroxy-N-dibutyl- and p-hydroxy-N-monophenyl-, aniline, 1 : 2-, 1 : 3-, 1 : 4-, 1 : 5-, 1 : -6, 1 : 7-, 1 : 8-, 2 : 3-, 2 : 6- and 2 : 7-naphthalenediol, dibutylamine, diethanolamine, butyland heptyldiethanolamine, triethanolamine, [(CH3)2NC6H4]3SiOH and NH2.C6H4.Si (OC2H5)3.  3-Methyl-catechol is prepared by reacting 1 mol. of catechol with 1/2 mol. of methyl alcohol to form the half ester which is then subjected to acid catalysed thermal rearrangement. p-Tertiary-butyl-, p-cyclohexyl- and 4-phenylcatechol and 2-phenyl-hydroquinone may be prepared by a similar method.