baber/WOPTO huggingface dataset:
Patent GB-1592237-A (GB)
Title: Heat treated superalloy single crystal article and process
IPC: C22F1/10
Filed: 1978-05-02
Abstract: The invention relates to nickel-based superalloy single-crystal objects which are produced from a special alloy and heat-treated. The resulting objects are substantially free of grain boundary hardeners such as carbon, boron and zirconium, and contain only a limited amount of cobalt. Owing to the alloy composition, the alloys have a high initial melting point. The heat treatment process homogenises the microstructure and refines the  gamma '-morphology. The invention is particularly useful, for example, in the production of rotor blades and guide vanes for gas turbine engines.
Patent GB-332690-A (GB)
Title: Improvements in and relating to boat-launching gear for ships
IPC: B63B23/32
Filed: 1929-06-05
Abstract: 332,690. Cahill, F. S. June 5, 1929. Davits a having splayed ends b which are hinged at c to the ships side and incurved heads which, when the davits are fully inboard, are within the width of the ship are luffed by screw gear comprising the screw g, nut f, Fig. 4, working in guides f<2> housed beneath the boat-deck and. links e hinged to the davit. A single suspension gear with release hook is employed. In modifications, a double suspension gear for the boat is used, the davit being X-shaped or the head may be provided with a horizontal suspension bar.
Patent GB-271672-A (GB)
Title: Improvements in machines for sterilizing and greasing baking or other pans
IPC: A21B3/16
Filed: 1926-07-10
Abstract: 271,672. Morton, R. July 10, 1926. Baking-trays and the like, cleaning and greasing.-A greasing-machine for baking pans and the like, in which the grease, i.e. lard, is heated and sprayed on to the pans, comprises a grease supply tank, a jet, a pan-receiving frame, and pressure steam supply means actuated by depression of the frame for spraying the grease from the jet. As shown in Fig. 1, the pans 48 are carried by an angle-iron frame 43 pivoted at 41 and provided with abutments 49, 50 which, when the frame is depressed, move spring-returned rods 19 of the valves 10, 13 to admit steam and lard to the jets 30, 31, Figs. 5 and 6. The valve 10 is connected with the steam supply 24 and is opened before and is closed after the lard valve 13, whereby sterilization of, and removal of crumbs &c. from the pans, and also uniform distribution of the grease, are effected. The lard tank 6 is heated by a coil 7 having an exhaust 8, and the outlet pipe 12 is connected with the valve 13 which has a bye-pass closed by a valve 23, Fig. 3, so that, during the preliminary heating, the valve 29, Fig. 3, in the pipe 28 joining the steam and lard pipes 26, 27 is opened and steam flows through the valve 13 and the pipes 12, 37, 40. The jets 30, 31 are interconnected by the pipes 37, 40 whereby lard is supplied to the annular passage 38 in a cap 36 of each jet. and steam is supplied to radial passages 34 in the caps. The lard issues through passages 39 and is sprayed by the steam. The axial passages 32 of the jets are controlled by needle valves 33 to regulate the quantities of steam and lard used. In operation the valves 23, 29 are closed. Any number of jets may be used, according to the number of pans simultaneously to be greased. The angle members of the frame 43 are relatively adjustable to accommodate pans of different sizes, the pans themselves being supported by pins projecting inwardly from the angle members.
Patent GB-1346089-A (GB)
Title: Method of securing a solid propellant grain in the combustion chamber of a propulsion unit and a propulsion unit with a propellant grain thus secured therein
IPC: F02K9/36
Filed: 1971-05-26
Abstract: 1346089 Propulsion units SOC NATIONALE INDUSTRIELLE AEROSPATIALE 26 May 1971 [28 May 1970] 17321/71 Heading F3A A propulsion unit 2 in which a grain 1 can expand and contract freely in response to temperature variations comprises a number of studs 14 securing the front end of the grain to a fixed plate 3, and a number of studs 11 securing an annular grid 12 to the rear face of the grain, which grid laterally supports the rear face of the grain while at the same time allowing it to slide as the grain expands and contracts. Lateral expansion and contraction of the grain relative to the plate 3 and grid 12 is permitted by virtue of a radial clearance between the studs and the corresponding bores in the plate and grid. This movement is damped by an elastomeric ring (13, Fig. 4, not shown) surrounding each of the studs 11. The studs 14 co-operate with individual sectors 4, or a ring, secured in the grain by a layer of inhibiting varnish 7. The varnish may also be applied to the inside surface of the propulsion unit for thermal protection.
Patent GB-1386549-A (GB)
Title: Manufacture of zinc oxide
IPC: C22B19/18
Filed: 1973-04-11
Abstract: 1386549 Manufacture of zinc oxide MITSUI MINING & SMELTING CO Ltd 11 April 1973 [11 April 1972] 17340/73 Heading C1A ZnO is prepared by oxidizing zinc vapour in a combustion chamber (1) at 800-1000‹ C. and sub-atmospheric pressure and passing the oxide into a flue (3) which has at its downstream end a damper (6) which opens into a tube (7) for a carrier gas, the residence time in the flue being 10-30 seconds and the temperature immediately before the damper 300-800‹ C. The pressure in the combustion chamber may be maintained at 4-8 mm. of water below atmospheric by automatic adjustment of the damper which is preferably a louvre damper, this may also control the temperature of combustion. The carrier gas may be controlled so that the temperature at the outlet from the damper is 120-160‹ C. The flue may be at least 10 m. and preferably 17 m. long and heat insulated. The Zn vapour may be taken from a lead column of a ZN refining process using reflux trays and a liquation furnace may be used. The ZnO may contain less than 10 p.p.m. Pb, 5 p.p.m. Cd and 10 p.p.m. Fe.
Patent GB-335172-A (GB)
Title: Improvements in or relating to game apparatus
IPC: A63F9/14
Filed: 1929-06-06
Abstract: 335,172. Ham, C. G. June 6, 1929. Race games, mechanical.-Relates to race games of the type in which the competing figures are moved along a slotted track, and a chance control is now provided by the cooperation of discs with gapped edges with a driving means for the figures. The figures are mounted on carriers 22 sliding in slots in a casing and attached to cords 32 which are wound on conical drums 29<a> by turning a handle 12 to operate the figures. The conical drums are loose on a shaft 25 driven through a pinion 27 from a pinion 23 on the handle spindle, and are spring pressed against collars 30 fast on the shaft. Each drum has a toothed flange 29 for engagement with a detent 37 when a tail 37<a> thereon engages the circular edge of a disc 36. The discs 36, one to each winding drum, are loose on a shaft 35 mounted in arms 34 on a shaft 33 and are driven by friction when a pinion 35<a> on the shaft engages a pinion 24 on the handle spindle. The shaft 35 rests against the cam edges of discs 16, 17 fast on a shaft 26 geared to the handle spindle. The discs 36 thus driven fast and irregularly present gaps 36<b> in their periphery irregularly to the detents 37 allowing the toothed flanges 29 to turn, while the circular edges of the discs cause the pawls 37 to engage and hold the winding drums. A winning post or flag may be fitted to the end of each runner's track to be raised on arrival of the runner. In a modification the winding drums may each have a toothed wheel and be mounted on separate shafts attached to the free ends of flat springs the other ends of which are mounted so as to be engaged by the cam projections in the discs 36 so as to throw the winding drums out of mesh with one set of driving pinions into mesh with another set of pinions driven at a different speed.
Patent GB-236597-A (GB)
Title: Improvements in and relating to electrical installations comprising current modifiers
Filed: 1925-07-06
Abstract: 236,597. Doloukhanoff, M., (Assignee of Bossu, P.). July 7, 1924, [Convention date]. Systems depending on the use of static transformers; systems depending on the use of two or more machines.-In installations, such as automatic substations, wherein generators, converters &c. are cut in or out with varying load, means are provided to prevent the power of the installation being reduced so as to give less power than that required by the maximum demand of the preceding period. The " period " member is a revolving cam 18 with a recess 17 which first allows the nose 16 of the member 14' to fall and complete, circuit at 15 and secondly allow the end 22 of the lever 23 to drop and throw up the pawl 9 so allowing return of the contact needle 7 of an ampere-meter &c. 1 if the current at that moment is insufficient to maintain it in position. If, for instance, contact be made at 14, the solenoid 35 is energized, the brake 20 on the period cam is removed to allow it to start and the armature catches up under the latch 38. At the same time circuit for the coil 43 is completed, and the switch 48 is turned counterclockwise to vary the machines on charge and is then latched up by the catch 52, the circuit being then broken by the depression of the arm 45. If now the needle falls back on contact 13 and when the nose 16 falls into the recess 17, the needle is still on 13, solenoid 27 is energized releasing the armature 36, and ccmpleting the circuit of the solenoid 66 which removes the catch 52, allowing the lever 48 to turn clockwise, under the influence of the spring 50 and vary the machines on charge. This cannot happen if, within the period, the needle has moved off the contact 13. In a modification, Fig. 2, means are provided to lessen the power required for varying the conditions. A low power electric motor 78 stores energy in a spring 75 tending to turn an eccentric or crank 73 operating the switch 48. This eccentric is held by an escapement 76, 77. The member 77 is actuated in one direction by a solenoid 43 and latched by the core of a solenoid 66. It is moved in the other direction bv a spring when the latch is withdrawn by the solenoid 66.
Patent GB-1035245-A (GB)
Title: Improvements in the manufacture of viscose rayon filaments
IPC: D01F2/06
Filed: 1963-05-03
Abstract: 1,035,245. Viscose spinning. COURTAULDS NORTH AMERICA Inc. May 3, 1963 [May 4, 1962], No. 17510/63. Heading B5B. Formaldehyde which is at least 70% monomeric is added to viscose, which is then extruded through a multi-hole spinneret into an acid spinning bath, the resulting filaments being stretched. The formaldehyde may be added to the viscose, preferably not more than 90 minutes before extrusion, as an aqueous solution containing not more than 20% by weight of formaldehyde. The concentration of formaldehyde in the viscose may be 0À2-1À5% by weight at the time of spinning. Stretching may be carried out before complete regeneration, in the spinning bath itself, in a second acid bath, in a water bath (see Specification 1,035,245) in steam, or in air (see Specification 1,034,177). The degree of stretch may be 40-350%. Regeneration may be completed during or after stretching. The filaments have high tenacities.
Patent GB-384219-A (GB)
Title: Improvements in and relating to the prevention of skidding of vehicles
IPC: B60C11/14
Filed: 1932-06-21
Abstract: 384,219. Treating wheels for increasing adhesion. JOSKY, W., 4, Alsterdamm, Hamburg, Germany. June 21, 1932, No. 17578. Convention date, Aug. 8, 1931. [Class 103 (iii).] A solution for use on tyre treads, adapted to produce a non-slipping surface when diluted with water, is formed by dissolving resin, wood pitch, or like resinous material in alcohol or other organic solvent to which may be added an organic acid such as acetic or lactic acid. The solution may be sprayed on to the tyres from a container controlled by the driver. The invention is stated to be applicable to rubber or metal tyres.
Patent GB-292509-A (GB)
Title: Improvements in and relating to the construction of stators of dynamo-electric machines
IPC: H02K1/18
Filed: 1928-06-18
Abstract: 292,509. British Thomson-Houston Co., Ltd., (Assignees of Savage, M. A.). June 20, 1927, [Convention date]. C''res and yokes; armatures and field magnets, cooling; casings.-A stator for a dynamo-electric machine comprises an annular structure supporting the laminations, a longitudinally parted cover spaced from the annular structure and foot members for supporting the annular structure and the cover. In the example shown, the stator of a turbo-generator is in four parts in order to facilitate transport viz, an annular structure 10, a cover 30 in two parts bolted or welded together at 31, and two foot members 20 each comprising a number of spaced plates 21 secured to a base plate 22 and a flange plate 23. The structure 10 comprises a number of annular plates 11 connected by longitudinal tie bars 12. The bars on the inner periphery engage dovetailed notches in the laminations 13, and their ends 15 are threaded so that a clamping cover 16 can be secured thereto by nuts 15<a>. The plates 11 are formed with bolt holes 17 which register with similar holes 21<a> in the plates 21 when the stator is assembled. Each part of the cover 30 is formed with a flange 35 which can be bolted to the plates 23 on the foot members. Webs 37 are provided on the cover and bear on the annular plates 11, the ventilating passages 40 so formed preferably being interconnected as described in Specification 104,250. To prevent a flow of air between the plates 21 a closure plate 24 mav be provided. Cooling air is preferably supplied under pressure through one of the end shields. Specifications 16837/02 and 27895/02 are referred to.
Patent GB-477297-A (GB)
Title: Improvements in or relating to pianos
IPC: G10C1/00
Filed: 1936-06-24
Abstract: 477,297. Pianofortes. KNIGHT, A. E. June 24, 1936, No. 17585. [Class 88 (ii)] In a pianoforte, the bow of the soundboard towards the strings is produced by the tension of the strings, which tension deforms the metal frame so as to exert an inward compression at opposite edges of, and in the plane of, the soundboard. The resilient rectangular metal frame 1 is open between the upper part and a substantially diagonally disposed bar 12, struts 13 ... 16 being disposed outside the opening as shown. The soundboard is bolted at top and bottom to the rear of the metal frame 1 and to the rear wood framing, abutting a rear flange 6 on the metal frame. The soundboard may also be bolted on its vertical edges.
Patent GB-1512453-A (GB)
Title: Integrated optical modulators
IPC: G02F1/225
Filed: 1975-04-29
Abstract: 1512453 Controlling light SIEMENS AG 29 April 1975 [9 May 1974] 17689/75 Heading G2F  An optical modulator comprises two spaced waveguides 2, 3 of material with an electric field dependent refractive index, formed in the surface of a substrate 1 and coupled at two points by overlying 3dB couplers 5, 6, parallel electrodes 4 for individually controlling the refractive index of each guide being provided on the surface of the substrate. In use an incident beam 1 is distributed equally between guides 2 and 3 by coupler 5, and the relative phase between the beams in each guide can be altered by controlling the potential differences U applied across each guide, before the beams are permitted to mutually interfere by the coupler 6.
Patent GB-1255438-A (GB)
Title: Improvements relating to desks
IPC: A47B17/00
Filed: 1970-04-14
Abstract: 1,255,438. Desks; feet,separate. COMPAGNIE DU RONEO. April 14, 1970 [April 18, 1969] , No.17693/70. Headings A4H and A4U. A desk has at least one drawer compartment, a back, a top and two alternative sets of legs, the first set allowing the top to project around the desk and the second set allowing the legs to be at the corners of the desk. Two drawer compartments may be arranged side by side and an end panel bridging one pair of legs and abutting the back may be provided. A desk drawer compartment, Fig. 1, has side panels 1a, 1b, a rear panel 1c, uprights 2, 3 pierced with holes 4, 5 for the provision of drawer runners, four front bracing brackets 10 and four rear bracing brackets 11, bottom crossmembers 6, 7 and top cross-members 8 and 9, each cross-member 6 to 9 being pierced with slots 16<SP>1</SP>, Fig. 9, and holes 17<SP>1</SP> containing captive nuts, slots 18, Fig. 1, containing captive nuts and slots 20. In the first embodiment, Figs.5, 10, the compartment legs comprise tubes 41 with adjustable feet 42 and plates 43 with lugs 44 and holes 45 and the legs are joined by bracing tubes 48 with bent mortice and tenon joints as in Fig. 6 (not shown). The lugs 44 are inserted into the slots 16<SP>1</SP> as shown in Fig. 10, the legs pivoted in the direction of the arrows and then screwed to the captive nuts 17<SP>1</SP> . The other legs 41<SP>1</SP> of this embodiment have adjustable feet 42 and are inserted into channels in a side panel 60b and secured therein by captive nuts and bolts as in Fig. 8 (not shown). The back 22a is secured to the side panel 60b by bolts passing through holes 25 into captive nuts 67, 67a in the side panel and is secured to the drawer compartment by projecting tenons 26, Fig. 2 (not shown) and bolts engaging with the captive nuts 18. The drawer compartment(s), back and side panel is secured to the desk top 69 by bolts engaging captive nuts 70, the compartment also being secured by projecting tenons 28, Fig. 3 (not shown). In the second embodiment, Fig. 9, the drawer compartment has fastened to it legs 32 and side panels secured together by captive nuts and bolts and projecting tenons 33, 39 as in Fig.4 (not shown) which are bolted to the captive nuts 18 of the drawer compartment, the legs 49 and side panel 49b being similar to those of the first embodiment but having projecting flanges 52 to secure them to the desk top, Fig.7 (not shown) and the back 22a is also similar to that of the first embodiment. Both embodiments may have a shelf 73 which slides out of the drawer compartment and the leg and drawer assemblies may be varying heights, e.g. for typing and writing.
Patent GB-458427-A (GB)
Title: Improvements in and relating to colour photography, colour cinematography, and photo-mechanical colour printing
IPC: G03F3/04
Filed: 1935-06-20
Abstract: 458,427. Colour photography. BERNARDI, A., 70, St. Margarets Road, Edgware, Middlesex, and OMNICOLOR, Ltd., 220, Fulham Palace Road, London. June 20, 1935, Nos. 17719 and 18890. [Class 98 (ii)] Colour separation negatives for use in colour photography or kinematography or for photomechanical printing processes are produced by making the exposures, one through a blue or blue-green filter which passes substantially the whole of the visible spectrum and tones down the red end and one through a red or reddish-yellow filter that absorbs the blue and blue-green rays. The exposures may be made with an amber filter for reducing contrast, in addition to the two filters. The blue filter may comprise aesculin or #-naphthol disulphonic acid, with toluidine blue alone or mixed with toluidine green or naphthol green, and for'the red filter a mixture of aesculin, auramine and rhodamine B may be used. The amber filter is made with a mixture of aesculin or #-naphthol disulphonic acid, pyrazole yellow, and Fast Red D. In place of pyrazole yellow tartrazine or rapid filter yellow may be used. Specifications 358,065, 458,428, 458,452, and 458,457 are referred to.
Patent GB-724229-A (GB)
Title: Improvements in or relating to nitric acid concentration
IPC: C01B21/44
Filed: 1952-07-14
Abstract: <PICT:0724229/III/1> <PICT:0724229/III/2> In a process for concentrating nitric acid by fractional distillation in the presence of a concentrated aqueous solution of an alkaline earth metal nitrate (60 to 80 per cent. nitrate), wherein the fractional distillation system comprises a rectifying zone and a stripping zone, the dilute acid is fed into the stripping zone and the nitrate solution is also supplied to the stripping zone, either together with, or at a point above, the dilute acid; the concentrated nitric acid is withdrawn from the upper part of the rectifying zone, and a dilute aqueous solution of the nitrite, substantially free of nitric acid, is withdrawn from the base of the stripping zone.  Dilute nitric acid (55-65 per cent. by weight HNO3) is fed via line 10 (Fig. 1) to stripping zone 11, which is heated by reboiler 13, and a 70-72 per cent. solution of magnesium nitrate is introduced into this same zone 11 via line 12.  The weight ratio of magnesium nitrate solution to dilute nitric acid is about 7 to 1.  The overhead vapours from zone 11 are passed via line 14 into rectifying zone 15, and the liquid bottoms from zone 15 are returned to zone 11 via line 16.  The overhead vapours from zone 15 are passed via line 17 to condenser 18, and the condensate, which contains at least 95 per cent. HNO3, is withdrawn via line 19 and is divided into two portions.  One portion is returned as reflux to zone 15 via line 20, and the other portion is withdrawn as product via line 21.  The preferred reflux ratio is about 2.2:1.  Liquid bottoms from zone 11 containing 55 to 70 per cent. magnesium nitrate and not more than 0.1 per cent. free nitric acid (the remainder being water) is withdrawn via line 22.  A portion of this solution is passed via line 23 to reboiler 13, where it is heated and then returned to zone 11 to provide the necessary heat for the fractional distillation.  The remainder of the bottoms from zone 11 is passed via line 24 and heat exchanger 25 to vacuum evaporator 26, wherefrom some of the water and free nitric acid are withdrawn from the system via condenser 27.  The resulting concentrated magnesium nitrate solution is then returned to zone 11 via line 12. In a modification (Fig. 3), the concentrated magnesium nitrate solution is thoroughly mixed, in chamber 28, with the liquid bottoms from rectifying zone 15 prior to introduction into stripping zone 11 via line 29.  In this way channelling in zone 11, which might otherwise be caused by the high viscosity of the nitrate solution, is prevented.
Patent GB-562105-A (GB)
Title: Improvements in or relating to end fittings for flexible hoses
IPC: H01M4/76
Filed: 1942-12-14
Abstract: 562,105. Pipe joints. AUTOMOTIVE PRODUCTS CO., Ltd., and BROCK, W. H. J. Dec. 14, 1942, No. 17774. [Class 99 (i)] A hose end fitting comprises a tubular member 10 inserted within the hose, a collar 11 secured to the member 10 by distorting the collar, and a sleeve 12 adapted to be swaged at 12b to grip the hose and having an inturned flange 15 which engages on its inner face with the collar. The collar may be a dished washer with a cylindrical bore which becomes tapered when the washer is flattened. The collar may deform the tube or may spread into a preformed groove. Two hoses may be joined as shown or one end of the tube 10 may carrya union nut bearing on a collar secured to the tube. Specification 561,711 is referred to.