baber/WOPTO huggingface dataset:
Patent GB-756279-A (GB)
Title: Combustion chamber assembly for gas turbine engines
IPC: F23R3/60
Filed: 1954-08-30
Abstract: 756,279. Generating combustion products under pressure. PURVIS, J. T., and SECORD, L. C. Aug. 30, 1954, No. 25140/54. Class 51(1). A combustion chamber of a gas turbine engine comprises a flame tube disposed within an outer air casing the flame tube being supported within the casing by three circumferentially-spaced supports situated in a transverse plane of the chamber, one of the supports being free to move longitudinally with respect to the air casing or the flame tube. Each support is secured against circumferential movement with respect to the casing and flame tube. The upstream end of a flame tube 15 is supported as shown in Figs. 2 and 3, the downstream end of the flame tube being supported at 17 for longitudinal movement. Two spigots 18 are secured to flanges 18b on the air casing 14, the spigots slidingly engaging sockets 18c projecting radially from the flame tube. The flame tube has apertures 21, the passages 18 serving to interconnect adjacent flame tubes. The third support comprises a spigot 19a secured to the flame tube, the spigot having flat portions 19c which engage the sides of a channel member 19b secured on the inner surface of the air casing. In a second embodiment, Figs. 5, 7 a tubular socket 23a is secured to the flame tube and a channel member 24 with inturned edges is secured to the air casing. A spigot member 23c engages the socket 23a, the spigot having a head portion 26 which slidingly engages the channel 24.
Patent GB-1103690-A (GB)
Title: Casing for fluid control valve
IPC: F15B13/04
Filed: 1965-06-15
Abstract: 1,103,690. Valves. KADRON G.m.b.H. 15 June, 1965 [16 June, 1964], No. 25209/65 Heading F2V. The sleeve 32 of a spool valve is carried in aligned apertures formed in a series of vertical flattened tubes 4, 6, 34, 36, mounted at their lower ends on a port plate 12 and closed at their upper ends, the sleeve, tubes and port plate being soldered together. The ends of the sleeve are closed by plugs 24 to define therein an actuating chamber communicating with tube 34 and a leakage chamber communicating with tube 36. In the embodiment of Fig. 8, the stem of a mechanicallyactuated spool valve is provided with an annular seal-ring 50, the ring being pressure relieved by virtue of a further flattened tube 64 which communicates via passage 94 with an exhaust passage 78. The port plate in this latter embodiment is laminated and the ports in the various laminations, which may be copper-coated, may be in staggered relation (Fig. 12, not shown). In the embodiment of Fig. 15 (not shown), a plate (110) is mounted on the flattened tubes (102) and is provided with pilot-controlled passages (112) communicating with actuating chambers (108) at each end of the spool. The passages (112) may communicate with the source of actuating fluid via the port plate and either a pipe (118) (Fig. 16), located outside the housing or a pipe (118) (Figs. 19 and 20) located inside one of the flattened tubes. In Fig. 21, two sleeves 136, 138 extend through flattened tubes 124-134, the lower sleeve housing a two-way valve actuated by pressure in an hydraulic system connected to port 140, and the upper sleeve housing a pressurelimiting valve whose relief pressure is controlled by the said two-way valve. Fig. 22 shows a pressure-relief valve housed in a sleeve 156 carried by flattened tubes 152, 154 mounted on a port plate 150.
Patent GB-1536590-A (GB)
Title: Preparation of an ultrastable faujasite having hydrogen and metal cations
IPC: C10G11/05
Filed: 1976-06-17
Abstract: 1536590 Faujasite treatment W R GRACE & CO 17 June 1976 25219/76 Heading C1A A faujasite is treated to improve its heat and steam solubility by (a) treating a faujasite having a SiO 2  : Al 2 O 3  molar ratio of at least 3À5 to ionexchange with hydrogen ions or cations which thermally decompose to leave hydrogen ions, until the alkali-metal content (expressed as oxide) is less than 1 wt. per cent; (b) calcining the exchanged zeolite and then (c) introducing non- alkali metal cations by exchange at pH 1.5 to 3.5. Preferably step (a) comprises initially exchanging to an alkali-metal content of 1-4 wt. per cent, calcining at 1300-1500‹ F., then further exchanging to below 1 wt. per cent, the faujasite then being separated, washed and dried. Preferably in step (c) 1-6 wt. per cent (calculated as oxide) of rare-earth, Ca, Mg, Co, Ni, Cu and/or iron is incorporated. The treated faujasite may be mixed with 50-95 wt. per cent (based on final composition) of an inorganic oxide matrix (e.g. silica-alumina plus kaolin clay) and used as a catalyst for cracking hydrocarbons.
Patent GB-586469-A (GB)
Title: Improvements in and relating to shutters or screens for glass roofs, skylights and like glazed structures
IPC: E04B7/16
Filed: 1939-09-07
Abstract: 586,469. Window-shutters. WHITEWAY, G. H. E. Sept. 7, 1939, No. 25276. [Class 20 (ii)]. 1 A shutter for glass roofs or skylights comprises panels 3 of sheet metal or other thin sheet material which are mounted on frame members 4 to which are attached housings 5 for rollers 6 which run at the upper end on a flange of a channel shaped member 2 secured by angle brackets 1 to the structural members of the skylight. The lower end of each shutter has in addition to rollers described above, rollers 6A moving on a surface of the runner 2 which is at right angles to the plane of the glass. The skylight has alternate clear and opaque panels, and the panels 3 of the shutter, when in the closed position, slightly overlap the clear panels of the skylight, and, when uncovering the skylight, register with the opaque panels. In a modification, instead of mounting the shutters on a travelling frame, each shutter is portable and independently mounted by means similar to those above described.
Patent GB-350327-A (GB)
Title: Improvements in or relating to four-stroke diesel engines
IPC: F01L1/28
Filed: 1930-08-25
Abstract: 350,327. Diesel engines; valves. LAUBENDER, L., 61, Turmstrasse, Winterthur, Switzerland. Aug. 25, 1930, No. 25310. Convention date, Sept. 9, 1929. [Classes 7 (ii) and 7 (vi).] In a four-stroke Diesel-engine cylinder having a common inlet and exhaust port controlled by a valve 3, the gradual closing of the valve is compensated for by additional piston-controlled ports 6 which may be tangential to the cylinder bore ; on the suction stroke the valve 3 closes when the piston begins to uncover the ports 6 ; on the expansion stroke the valve 3 opens before the ports 6 are uncovered. Further ports 15 controlled by a valve 16 may be provided and the air may be supplied under pressure. Some of the ports 6, 15 may be radial and they may be transverse or directed towards the cylinder head. Additional exhaust ports similar to the ports 15 may also be provided.
Patent GB-203910-A (GB)
Title: Improvements in or relating to a stylus mounting for sound boxes of talking machines
IPC: G11B3/46
Filed: 1922-09-19
Abstract: 203,910. Wade, H., (Aeolian Co.). Sept. 19, 1922. Tool-arm mountings.-In a gramophone soundbox, the stylus-bar mounting comprises aligned bearing-sleeves 3 mounted on the casing, ballbearing holders 11 in the sleeves, in each of which a number of balls 13 are carried, and trunnions 6 on the stylus-bar having coned ends 7 engaging the balls. The sleeves 3 in the construction shown form part of a slotted cylinder, and the ballholders consist of cups integral with stems 10 which fit in plugs 8 adjustably screwed into the sleeves. Between each stem 10 and the corresponding plug 8 is a sleeve 12 of soft rubber surrounded by a split bushing 9.
Patent GB-816961-A (GB)
Title: Casting method and apparatus
IPC: B22D15/04
Filed: 1956-08-20
Abstract: 816,961. Casting-machines. MORRIS BEAN & CO. Aug. 20, 1956 [Aug. 19, 1955], No. 25422/56. Class 83 (1). A method of casting comprises forming a lake 26 of the melt, e.g. nickel-cast-iron, or aluminium-alloy, and penetrating it with a cope 14 of gas-permeable material comprising at least one projecting core member 16 for raising the level of the molten metal by displacement around said core member or members before complete solidification of the melt. The melt 26 is held in a heated, refractory drag 17 of, e.g. resin-, cement-, sodium or ethyl-silicate-, and oilbonded sand, plaster of Paris, graphite or metal, and has a guiding means 22 on which is aligned the cope 14 of bonded and cured moulding- sand. The drag is flooded with a non-oxidizing heavier-than-air gas such as argon, before introduction of the melt. After solidification, the cope and casting are lifted bodily from the drag. The process is particularly suited to the casting of articles having a multiplicity of thin webs, such as are formed by a large number of closely-spaced holes or indentations, and is described with reference to the manufacture of a disc-shaped tube sheet, approximately 6 feet in diameter and having 15,000 ¢-inch holes spaced apart inch. Moulding processes.-Wedge-shape cope segments are made by casting plaster moulds therefor from master patterns which are negatives of the tube sheet and have retractable pin members corresponding to the holes in said sheet. The holes in the plaster cast are filled and covered to a thickness of #-“ inch with facing-sand which may contain a resin binder which is backed up with a coarser sand which may contain a resin binder, positioning and handling bolts are embedded in the sand, a backing of " Perlite " containing about 15 per cent by volume of bonding resin applied, followed in some instances by a layer of coarse sand and resin, and the mould material is then compacted in the plaster mould and baked to cure the resin. The plaster is then disintegrated by water. A number of segments are then assembled to form a complete disc.
Patent GB-1275353-A (GB)
Title: Heat-resistant polymers and process for producing the same
Inventor: BRACKE WILLIAM
IPC: C08G73/06
Filed: 1970-05-27
Abstract: 1275353 Polymers containing pyrazole groups LABOFINA SA 14 Oct 1970 [27 May 1970] 25538/70 Heading C3R Novel polymers contain pyrazole groups, methylene groups and phenylene groups. They may contain randomly distributed the units where Ar is a phenylene radical linked through the meta and/or para positions, and R is hydrogen or a hydrocarbon radical. The polymers are obtained by reacting an acetylenic polymer with a hydrazine compound NH 2 -NHR. In examples hydrazine is reacted with polymeric phenylene diacetylene and methylhydrazine is reacted with a poly (phenylene butadiynylene) to obtain polymers containing pyrazole groups. Uses.-Films and fibres.
Patent GB-974554-A (GB)
Title: Ball joint assemblies
IPC: F16C11/06
Filed: 1963-06-27
Abstract: 974,554. Making ball joints; welding by pressure. GENERAL MOTORS CORPORATION. June 27, 1963 [July 26, 1962], No. 25588/63. Headings B3A and B3R. A ball joint assembly comprises two housing portions 10, 24 having flanges 12, 25 adapted to be welded together, a ring of welding projections 16 being formed on one of the flanges, and shallower projecting portions 20 also being formed on one of the flanges and being adapted to form a ring-like welded seal between the flanges. The projections 16 and portions 20 may be formed on the same flange, as shown, or on opposite flanges, and the projections may be oriented radially instead of circumferentially. The portions 20 are preferably between onefifth and one-third of the depth of the projections and both are formed by embossing with suitably shaped co-operating die parts. The flanges are united in a welding press, the welding current being passed until the shallower projecting portions have begun to melt-back slightly to form a seal, the main strength of the weld being concentrated in the projections 16.
Patent GB-844790-A (GB)
Title: 9ª‡-halo-16ª‡,17ª‡,21-triol-4-pregnene-3,11,20-trione and 21-esters thereof
IPC: C07J75/00
Filed: 1957-08-14
Abstract: The invention comprises steroid compounds of the general formula: <FORM:0844790/IV(b)/1> wherein R represents hydrogen or an alkonoyl radical containing up to 6 carbon atoms and Hal represents a halogen atom such as chlorine, bromine or fluorine, and a process for the preparation of the 16a , 21-dialkonoyloxy compounds of the above general formula I by reacting the corresponding 11b -hydroxy- -16a , 21-dialkonoyloxy compounds with chromic anhydride in an inert solvent, and if desired, treating these compounds with an alkali metal hydroxide to form the corresponding compounds wherein R represents hydrogen.  In the examples 9a -fluoro-16a , 17a , 21-trihydroxy-4-pregnene -3,11,20-trione and the corresponding 16a , 21-diacetoxy compound, and 16a , 21-diacetoxy-9a -chloro-17a -hydroxy-4-pregnene- -3,11,20-trione are prepared.  Specification 835,557 is referred to.ALSO:A therapeutic composition that can be used internally or topically comprises a capsule, pill, tablet, solution for injection, ointment or salve containing as the active ingredient a steroid of the general formula:  <FORM:0844790/VI/1> wherein R represents hydrogen or an alkanoyloxy group containing 1 to 6 carbon atoms, and Ha1 represents a halogen atom.
Patent GB-923785-A (GB)
Title: Process for preparing nickel carbonyl
IPC: C01G53/02
Filed: 1959-07-27
Abstract: Nickel carbonyl is prepared by the reaction of an agitated aqueous suspension of 6-11% nickel hydroxide with carbon monoxide in a tubular autoclave in the presence of a catalyst at 140 DEG -180 DEG C. and 20-70 atmospheres pressure.  In a semi-continuous process an aqueous suspension of nickel hydroxide and catalyst is reacted in autoclave 1 (see Fig. 1) with carbon monoxide from line 7.  Reaction gases containing nickel carbonyl and carbon dioxide pass through liquid trap 2 and are cooled in water-cooled condensor 3.  Liquid nickel carbonyl is collected and removed from vessel 4 whilst residual gases are freed from <PICT:0923785/III/1> <PICT:0923785/III/2> carbon dioxide by washing in vessel 5 and returned to feed line 7 through pump 6.  In a continuous process (see Fig. 2) an aqueous suspension of nickel hydroxide and catalyst is fed through pump 9 into a plurality of seriesconnected autoclaves 1 in counter-current to a stream of carbon monoxide from feed steam 11 and pump 7.  Residual reacted suspension is removed from vessel 2. Gases containing nickel carbonyl and carbon dioxide are cooled in condenser 3 and liquid nickel carbonyl collected and removed from vessel 4. Residual gases are washed in column 5 to remove carbon dioxide with an alkaline solution which is freed from absorbed carbon dioxide in vessel 6 and returned through pump 8 to the column whilst residual carbon dioxide-free gases are returned to the feed stream through pump 7.  Feed rates of carbon monoxide of 5-9 Nm3/hr/kg of nickel hydroxide are generally employed. Catalysts referred to are barium, carbon or hydrogen sulphide, or nickel cyanide but particularly nickel-sulphide used in molar ratio of 4-6% with respect to nickel hydroxide.
Patent GB-928696-A (GB)
Title: Ball spline assembly
Inventor: SEARS RICHARD EDWARD
IPC: F16D3/06
Filed: 1960-07-23
Abstract: 928,696. Rectilinear - motion bearings. BEAVER PRECISION PRODUCTS Inc. July 23, 1960, No. 25732/60. Class 12 (1). [Also in Group XXIV] A coupling between a relatively axiallymovable sleeve 10 and a shaft 12 comprises pairs of grooves 16a, 18a; 16b, 18b in the shaft and sleeve, these grooves containing balls 14 and the grooves 18a, 18b being circumferentially displaced towards each other relatively to the grooves 16a, 16b, so that rotation between the sleeve and shaft in one direction is prevented by one set of balls and grooves 14, &c., while rotation between the sleeve and shaft in the other direction is prevented by the other set of balls and grooves. As shown, four sets of balls and grooves 14, &c. are provided. Each set of balls 14 recirculates through a passage 26 formed in the sleeve 20 and in end caps 22 screwed to the sleeve. In a modification, Fig. 3 (not shown), three pairs of balls and grooves are spaced around the sleeve and shaft, and the shaft is provided with a rack.
Patent GB-317837-A (GB)
Title: Photo-electric cell
IPC: H01G9/20
Filed: 1929-08-23
Abstract: 317,837. Arcturus Radio Tube Co., (Assignees of Ruben, S.). Aug. 23, 1926, [Convention date.]. Light-sensitive cells.- A photo-electric cell has an anode 4, for example of copper, coated with an integrally formed layer of crystals 4a, such as cuprous oxide, selenium sulphide, or molybdenum sulphide. The anode cooperates with a cathode 6 of relatively electropositive material, such as aluminium, magnesium, zinc, or iron, and the electrode system is immersed in a transparent electrode 5, such as cobalt chloride or sodium carbonate. The normal potential between the cathode and anode is balanced by a potential of opposite polarity from a potentiometer R1, and the differential potential, produced when the cell is illuminated, is amplified by a thermionic valve V.
Patent GB-262703-A (GB)
Title: Method of enhancing the therapeutic value of ultra-violet rays
IPC: A61N5/073
Filed: 1926-10-16
Abstract: 262,703. Hanovia Chemical & Manufacturing Co. May 1, 1926 [Convention date]. Light and other radiations, treating diseases with. - The ultra-violet rays from a quartz mercury-vapour arc lamp are polarized to increase their therapeutic value by means of a mirror 26, a reflecting-grating 23, and a refraction screen, or a combination of two of these. In one form in which the lamp is carried by a holder 16 pivoted in a hemispherical casing 15, a frame attached to the front of the lamp carries a series of refraction screens inclined to the axis of the lamp and made of quartz, cellulose, gelatine, &c. A frame carrying the reflecting- grating 23 is suspended by means of cords 25 or like supports. The grating 23 consists of strips or wires of metal or alloy and of varying crosssection such as round, flattened, or jagged and irregular. The mirror 26 is constructed of quartz either plain or covered with a layer of metal, of graphite plated with metal, or of solid metal or alloy, and is adjustably supported bv cords. The casing 15 is pivoted to a horizontal slidable bar 12 in a frame slidably and rotatably mounted on an upright support 10.
Patent GB-518790-A (GB)
Title: Improvements in boilers provided with automatic solid fuel stokers
IPC: F23C1/02
Filed: 1938-09-05
Abstract: 518,790. Automatic control systems. McKEAN, J. G. Sept. 5, 1938, No. 25871. Drawings to Specification. [Class 38 (iv)] Temperature; fluid pressure. -A boiler having an electrically-driven stoker for solid fuel automatically started and stopped in accordance with the boiler temperature or pressure has also a liquid burner controlled simultaneously with the stoker. Valves in fuel and atomizing air or steam pipes are electromagnetically opened by current supplied to the stoker motor, and a damper similarly operated may admit air between the fire and' the burner. In an alternative' arrangement pumps for liquid fuel and atomising air may be driven by a motor connected in series with the stoker motor. A switch may be provided to render the burner inoperative.
Patent GB-1149142-A (GB)
Title: Differential transmissions
Inventor: MUELLER OTTO
IPC: F16H48/26
Filed: 1967-06-05
Abstract: 1,149,142. Differential gears. O. MUELLER. 5 June, 1967 [28 July, 1966; 13 Feb., 1967], No. 25891/67. Headings F2C and F2D. [Also in Division F1] In a vehicle differential excessive slip is resisted by throttling liquid pumped by three sets of pistons 54, 56, 58 which are reciprocated in radial bores in a pump housing 20 fast with a planet carrier 18 by a cam 42 rotating with a side wheel 32. The carrier is completely filled with hydraulic fluid to the exclusion of any air and forms a source of fluid for replenishing leakage losses from the pump. The pressure of the liquid in the carrier is maintained substantially constant despite temperature variations by an annular compensator 113, which may be an air-filled rubber torus or be of nitrogen-filled cellular material such as neoprene. The pump cylinders are arranged 40 degrees apart and the cam is of generally triangular form and such that on the occurrence of relative rotation between the planet carrier and the side wheel the pistons of each set reciprocate out of phase with the pistons of the other sets, and the volumetric displacement of one set for any time interval is substantially equal to the algebraic sum of the volumetric displacements for the other two sets.
Patent GB-992011-A (GB)
Title: Improvements in textile fibres based on crystalline polyolefins
IPC: D01F1/10
Filed: 1961-07-17
Abstract: A spinnable mixture comprises a crystalline polyolefin, e.g polypropylene, with from 1 to 25% by weight of a resinous product of the condensation of epichlorhydrin and a primary aliphatic amine containing 3 to 30 carbon atoms or a secondary aliphatic amine containing 4 to 60 carbon atoms or a salt thereof, which condensation product has been further reacted with a secondary aliphatic, aromatic or heterocyclic diamine; alternatively, the resinous product is the condensation product of epichlorhydrin and a secondary diamine or a primary diamine whose two amino groups act as secondary groups owing to steric hindrance.  Suitable diamines are piperazine, dipiperidyl, 1,8 - p - menthanediamine, N,N1 - diisopropylhexamethylene diamine, 1,3 - bis(n - dodecylamine) - 2 - propanol, 4,41 - bis - (methylamine) - diphenylmethane and N,N1-dibutylhexamethylene diamine.  A solid dispersing agent may be used to disperse the condensation product in the molten mass. The filaments may be water-insolubilized by treatment with formaldehyde, diisocyanates, diepoxy compounds and cross-linking agents such as divinyl benzene.ALSO:The dyeing of fibres of a mixture of a crystalline polypropylene and an epichlorhydrin-amine condensation product (see Division C3) is improved by pretreating the fibres, before or after stretching, with a water-insolubilizing agent, in particular a 5% aqueous solution of ethylene glycol diglycidyl ether.
Patent GB-230882-A (GB)
Title: Improvements in pads for polishing glass and the like
IPC: B24D11/00
Filed: 1923-10-18
Abstract: 230,882. Taylor, W., Preston, F. W., and Kapella, Ltd. Oct. 18, 1923. Polishing-compositions. - A rubber of felt, cloth or similar fibrous material 5 is heated with a composition in a molten state comprising a mixture of resin, about 80 or 90 per cent, and beeswax, Japan wax or carnauba. Pitch may be used instead of resin. Specification 126,489, [Class 60, Grinding or abrading &c.], is referred to.
Patent GB-338610-A (GB)
Title: Improvements in apparatus for taking self-posed photographic portraits
IPC: G03B17/53
Filed: 1929-08-27
Abstract: 338,610. Linley, O., and Linley, C. M. Aug. 27, 1929. Shutters with sliding plates; shutters with moving mercury. -A photographic camera is provided with a mirror mounted on the front so that the subject can see his pose, the mirror having an aperture which can be covered by a silvering material or an auxiliary mirror and through which the exposure is made. The auxiliary mirror or silvering material may form the shutter of the camera. In one form a mirror is mounted by toggle links on the front of a studio camera and has an aperture normally covered by a circular mirror 14, Fig. 2, mounted to slide on rails 13 under the influence of a spring 24. A plate 22 also slides on the rails 13 and is acted upon by a spring 25. Stops 18, 21 on the mirror 14 and plate 22 normally engage cam stops 17, 20 on a rod 19. To make an exposure, the rod 19 is rotated, releasing the stop 18, and the mirror 14 then moves over to the left. Further rotation of the rod 19 releases the stop 21, and the plate 22 then closes the aperture in the main mirror. In a modification, an elongated chamber 34, Fig. 5, partly filled with mercury 33 is located behind an aperture 11 in the mirror 2. Rotation of the mirror 2 by means of the framework 35, 36 causes the mercury to flow away from the aperture 11. The mercury may also be contained in a U-shaped chamber and caused to flow away from the aperture by fluid pressure on one arm of the U. Additional mirrors may be arranged at an angle to the main mirror for use in taking photographs in profile.