baber/WOPTO huggingface dataset:
Patent GB-1015219-A (GB)
Title: Improvements in or relating to the catalytic hydrogenation of unsaturated ketones
IPC: B01J8/00
Filed: 1964-04-24
Abstract: Unsaturated ketones are catalytically hydrogenated in a continuous process in which the ketone is evaporated, hydrogen added to the vapours by bubbling it through the liquid ketone, the mixture passed over a catalyst in a distillation column between the upper and lower fractionization elements, and the saturated ketone vapour is condensed and a portion recycled to the top of the column, whereby heat is transferred from the catalyst to the unsaturated liquid and the catalyst is cleaned by the recycled product.  Suitable unsaturated ketones are mesityl oxide, isophorone and homoisophorone. The hydrogenation may be carried out at 50-250 DEG  C.  The hydrogen may be recycled.  The catalyst may be in two separate zones and the unsaturated ketone introduced between them.  The hydrogen may be mixed with an inert carrier. In the examples, isophorone is converted to trimethylcyclohexanone, and mesityl oxide to methyl isobutyl ketone.
Patent GB-1459636-A (GB)
Title: Nuclear reactor installation
IPC: G21C13/00
Filed: 1974-04-18
Abstract: 1459636 Nuclear reactor containments SIEMENS AG 18 April 1974 [19 April 1973] 17155/74 Heading G6C The containment structure of a nuclear reactor installation comprises an upright, cylindrical concrete safety envelope 1 housing the reactor and at least partly encircled by a concrete building 12 so as to define a chamber 16 in which ancillary apparatus (a variety of which is mentioned) is disposed. The building 12 may have a flat, annular roof 14, or a domed roof (62) (Fig. 4, not shown). In the former case, a steel dome 20 may enclose the roof 2 of the safety envelope 1. The building 12 may be either concentric or eccentric with the envelope 1 and may have lateral extensions, e.g. where the chamber 16 houses lifting gear (Fig. 3, not shown). In one arrangement, the building 12 may, in plan, have the shape of a horse shoe; various plan profiles of the safety envelope 1 are possible.
Patent GB-1148826-A (GB)
Title: Improvements in or relating to hydraulic turbines, pumps and pump-turbines
IPC: F03B3/10
Filed: 1967-04-14
Abstract: 1,148,826. Hydraulic pumps and turbines. CKD BLANSKO, ZAVODY JIRIHO DIMITROVA NARODNI PODNIK. April 14,1967 [ April 20, 1966], No. 17170/67. Headings F1C and F1T. A hydraulic pump, turbine or pump-turbine comprises two runners joined together and attached to the machine shaft by means of a carrier chamber, the runners being rotatable relative to the carrier chamber about an axis perpendicular to the axis of the shaft so that one of the runners enters into operation while the other is concealed in an inoperative position in the carrier chamber. In the machine shown, which can work either as a centrifugal pump or as an inward-flow turbine, turbine runner 5 is in the inoperative position in which it is concealed within a carrier chamber 2 while pump runner 4 is in the operative position in which it is in alignment with pivotable guide vanes 10. Changover to turbine operation is effected by turning the runners about a spindle 3 by means of a servomotor 6. In addition, the guide vanes 10 are turned to a new position. The pivotable guide vanes 10 and the radially inner portions of fixed guide vanes 11 may be replaced by axially silable guide vanes. The runners 4, 5 may both be pump runners, one being designed for a high rate of discharge and the other for a low rate. In this case the changover is effected manually while the machine is stopped.
Patent GB-1100004-A (GB)
Title: Improvements in or relating to the manufacture of valves
IPC: C22C19/07
Filed: 1965-04-23
Abstract: 1,100,004. Making valves. TEVESTHOMPSON & CO. G.m.b.H. 23 April, 1965 [13 June, 1964], No. 17231/65. Heading B3A. In order to facilitate the application of a hard facing to a valve cone, the facing 5 is applied to a blank 1 having a rim 3 approximately perpendicular to the axis 2 and the rim of the blank is subsequently deformed as by forging and grinding into its final shape.
Patent GB-280259-A (GB)
Title: Improvements in portable bit dressing tools
IPC: B21J7/24
Filed: 1926-07-09
Abstract: 280,259. Bergquist, C. H., and Locke, E. A. July 9, 1926. Cushioning reciprocating parts.-A portable hammer especially adapted for dressing the bits employed in drilling wells comprises a power unit including a double-acting piston working in a cylinder in which the ports are spaced from the ends of the cylinder to provide cushioning chambers in combination with a striking element operated from the piston through a cushioning spring. The piston 19 within the cylinder 16 is actuated by compressed air or steam admitted from the chest 45 through ports 40 which are spaced about one and a half inches from the end of the cylinder to provide cushioning spaces for the piston. Specification 280,479, [Class 83 (iii), Metals, Cutting], is referred to.
Patent GB-362881-A (GB)
Title: Improvements in or relating to telephone plants
IPC: H04M9/00
Filed: 1930-06-04
Abstract: 362,881. Direct call systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. June 4, 1930, No. 17275. Convention date, June 7, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] A single loud-speaker is used as both the receiver and the transmitter in a telephone system, the currents being amplified in each direction. Speech transmitted by the loud-speaker A is amplified by AF and is reproduced by loud-speaker B whilst speech transmitted from B is amplified by BF and reproduced by A. The amplifiers AF, BF may be coupled to the circuit by any known method and may be situated at either the exchange or at the subscribers' premises.
Patent GB-649367-A (GB)
Title: Improvements in or relating to fastenings
IPC: A44B13/00
Filed: 1948-06-28
Abstract: 649,367. Hook fastenings. TURVEY, S. D. June 28, 1948, No. 17339. [Class 43] Adjacent edges of flexible material are fastened by hook-like members, provided adjacent to one edge., engaging in cooperating members provided adjacent the other edge and the parts to which the flexible material is permanently secured are so disposed that the two edges of the flexible material lie in line. Thus a member 1, Fig. 3, has between its ends, a depending hook 4 which is engaged in an aperture 7 formed in a downstepped portion 3 of the co-operating member 2. The edge portions of the flexible material are secured as by sewing and it will be seen that the edges will lie in line and will abut where the end 9 of the hook-carrying member 1 butts on the shoulder 6 at the down-stepped portion 3 of the co-operating member 2. The interlocking of the members is such that disengagement can be effected only after angular displacement of one or both of them. For use, e.g., on a football cover the members are curved. Preferably the members are stamped or pressed from sheet metal, several aligned hooks and slots being formed therein. Alternatively wire may be used as shown in Figs. 5, 6 for the hook member and 5A, 6A for the cooperating member, a downwardly bowed portion 18 in the inside lengths of wire, Fig. 5, constricts the entrance to the hook so that the eye member, Fig. 5A has to be sprung into engagement.
Patent GB-808001-A (GB)
Title: Rotary switch assembly
Inventor: DANLY PHILO HOWARD
IPC: H01H43/12
Filed: 1956-06-06
Abstract: 808,001. Interrupters; controllers. DANLY MACHINE SPECIALTIES Inc. June 6, 1956, No. 17422/56. Classes 38 (3) and 38 (5). A switch assembly for controlling a machine tool, e:g. a power press, comprises a plurality of cams which are adjustably clamped on a rotatable shaft, a plurality of switches operable by the cams being adjustably mounted in a housing for the assembly. In one arrangement, Figs. 2 and 3, the cams 28 are mounted between sleeves 26 on a shaft 12, the switches 60 being carried by arms 30 mounted on the sleeves. The sleeves and cams are clamped in adjusted position by a spring 48 and a nut 46 on the shaft. The switch bodies 60 have recesses 102 receiving pins 100 which have (a) flattened portions 104 movable in slots 98 in a housing 10 and (b) threaded portions 110 engaged by looking nuts 108. Each switch body 60 encloses a cam shaft 72 and earn 70 operable by an arm 80 carrying a roller 84 engageable by a cam 28. The cam 70 acts on plungers 64, 66 to actuate the switch " on " and " off." In another form, Figs. 4 and 5, the switches 156 have plungers 158 operable by spring pressed levers 162 having rollers 166 engageable by cams 146 on the shaft 120. The latter also drives a " zero-speed " switch 220 over gears 206, 212 so as to stop the press if the shaft of the switch assembly is arrested for any reason.
Patent GB-382922-A (GB)
Title: Manufacture of a sulphonic acid of piperidine or of an alkyl homologue of piperidine
IPC: H01K3/02
Filed: 1932-06-20
Abstract: Sulphonic acids of piperidine or its homologues are obtained by the catalytic hydrogenation of a sulphonic acid or salt of a sulphonic acid of pyridine or a homologue thereof in the presence of a solvent. According to examples (1) sodium piperidine-3-sulphonate, (2) a -pipecoline-b -sulphonic acid, (3) piperidine-3-sulphonic acid, (4) g -pipecoline-b -sulphonic acid, (5) a -methyl-b <1>-ethylpiperidine-b -sulphonic acid or its salts, (6) piperidine-a -sulphonic acid, are obtained from the corresponding pyridine derivatives.ALSO:Sulphonic acids of piperidine or its alkyl homologues are obtained by the catalytic hydrogenation of a sulphonic acid or salt of a sulphonic acid of pyridine or an alkyl homologue thereof in the presence of a solvent.  Suitable catalysts include noble metals, e.g. platinum, or metals of the iron group, such as nickel or cobalt, or copper; and the process is preferably carried out at raised pressure and temperature, but preferably below 150 DEG  C.  According to examples (1) sodium piperidine-3-sulphonate, (2) a -pipecoline-b -sulphonic acid, (3) piperidine-3-sulphonic acid, (4) #c-pipecoline-b -sulphonic acid, (5) a -methyl-b <1>-ethylpiperidine-b -sulphonic acid or its salts, (6) piperidine-a -sulphonic acid, are obtained from the corresponding pyridine derivatives.
Patent GB-241620-A (GB)
Title: Improvements in hack-saw machines
IPC: B23D49/00
Filed: 1924-07-22
Abstract: 241,620. McMurdo, A. H. July 22, 1924. Reciprocating-saw machines. - A manuallyoperated hack saw for cutting rails, girders or the like is carried in a frame 15 actuated by a hand lever 26 pivoted at 4 to an angle-iron support 2 mounted on a portable stand 1 which also carries a seat 9 with a clamping screw 11 for holding the rail against a block of wood 14. A second saw may be arranged to act on the under side of the rail, as described in Specification 138,993, for which purpose a downwardly extending arm 27 is provided.
Patent GB-807694-A (GB)
Title: Improvements in or relating to plant treating compositions
IPC: A01N/
Filed: 1957-06-03
Abstract: Plant treating composition consists essentially of at least one substantially water-insoluble plant treating substance, e.g. systemic herbicide, plant hormones, fungicides and pesticides dispersed in a water-in-oil emulsion.  The herbicide may be in the form of water-insoluble acids, alcohols and their derivatives. Examples of such water-insoluble acids are 2,4-dichlorophenoxy acetic acid; 2,4-dichlorophenoxy gamma butyric acid; 2,4,5-trichlorophenoxy acetic acid; 2,4,5-trichlorophenoxypropionic acid; 2,4,5-trichlorophenoxy gamma butyric acid; 2-methyl 4-chlorophenoxy acetic acid; 2-methyl 4-chloro phenoxy propionic acid; 2-methyl 4-chloro phenoxy gamma butyric acid; 4-chlorophenoxy acetic acid; 4-chlorophenoxy propionic acid; 4-chlorophenoxy gamma butyric acid; chlorinated benzoic acid. Examples of water-insoluble derivatives of these acids are their esters and the amides of the methyl, ethyl, butyl, hexyl, cellusolve and carbitol series, isopropyl, isooctyl, tetrahydrofurfural and butoxy ethoxy propanol esters, and amides such as the rosin and fatty amides.  Suitable water-insoluble herbicidal alcohols are for examples: 2,4-dichlorophenoxy ethanol; 3,4,5-trichlorophenoxy ethanol; and 2-methyl 4-chlorophenoxy ethanol.  The oils which may be used may be of any convenient kind in which the systemic herbicides are soluble either with or without the addition of a co-solvent. Specified oils are the conventional fuel oils, kerosene (i.e. paraffin oil), and related mineral oils.
Patent GB-1057592-A (GB)
Title: Improvements in and relating to end fittings for flexible hose
IPC: F16L33/32
Filed: 1964-04-28
Abstract: 1,057,592. Pipe couplings; metallic pipes. W. MURRAY. April 28, 1964, No. 17570/64. Headings F2G and F2P. A pipe coupling comprises a hose formed from channelled strip wound to form an internal helical groove, a deformable sleeve 4, a rigid nipple 11 having an external helical rib, a screw coupling member 14 and a screw connector 18. The member 14 is slid along the hose, the sleeve, preferably having an internally flanged end is slid into the hose, the nipple preferably having an externally flanged end is screwed into the hose and the connector screwed on to the coupling member. The sleeve may be tapered at both ends 8, 9 and has a thin feather edge 7. The member 14 has a tapered bore 16 which engages the tapered portion 8 of the sleeve in connection and deforms the thin tapering end of the sleeve inwardly to make a ring engagement with the hose. The hose is described as comprising a strip of metal sectionally formed with inwardly and outwardly directed channels (Fig. 1a, not shown) helically wound with the channel interfitting with a strip of asbestos 2 wound with the strip and coated with plastics material, e.g. P.V.C.
Patent GB-935155-A (GB)
Title: Improvements in or relating to step ladders
Inventor: GLADSTONE SAMUEL PHILIP
IPC: E06C1/393
Filed: 1961-05-15
Abstract: 935,155. Step ladders. SHAFTESBURY LADDERS Ltd. May 14, 1962 [May 15, 1961], No. 17576/61. Class 20 (2). [Also in Group XXV] The hinge of a step-ladder comprises a stop 6 on the hinge boss of one leaf 1 engaging an abutment on the other leaf to prevent collapse of the ladder should the check cords break. The abutment may be the end of a strengthening rib 7. The end of the leaf 1 has a lug 8 which is bent over and fastened to the capping tread 9.
Patent GB-914431-A (GB)
Title: Improvements in or relating to mountings for piezo-electric crystals
Inventor: KERR MICHAEL JOSEPH
IPC: H03H9/09
Filed: 1958-06-03
Abstract: 914,431. Piezo-electric crystal mountings. STANDARD TELEPHONES & CABLES Ltd. May 29, 1959 [June 3, 1958], No. 17691/58. Class 40 (8). A mounting arrangement for a piezo-electric crystal plate 1 provided with metallic layers 2 forming electrodes deposited on the two major surfaces of the cut crystal comprises a curved electrically-conducting resilient connector 6 electrically connected at 3, 7 to one of the electrodes 2 so that the connector extends symmetrically from the tangential connection, and a rigid conductive member 10 connected to the connector 6 in a symmetrical manner for supporting the crystal plate. The connector 6 can be elliptical, circular or other curved form. The connector 6 is soldered to the silver or silver paste spot 3 on the electrode 2 by running solder 7 over a short arc of the connector 6 and over the spot 3. As shown in Fig. 3, the connector 8 can be connected to the support member 10 at pairs of points 12, 13, 14 or at one point 11 if the connector 8 is of closed circular shape. A similar mounting arrangement can be attached to the electrode 2 on the other face of the crystal plate 1.
Patent GB-155797-A (GB)
Title: Improvements in foundry moulding-machines
IPC: B22C15/20
Filed: 1920-06-29
Abstract: 155,797. Beardsley, E. O., and Piper, W. F. Dec. 22, 1919, [Convention date]. Reciprocating sieves.-A reciprocating sieve 37 forming part of a foundry moulding-machine is resiliently supported at 39 to permit reciprocation by crank mechanism 42 driven by a motor 46. The sand projector of the moulding-machine is of the type described in Specification 137,963, [Class 83 (i), Casting &c. metals].
Patent GB-222945-A (GB)
Title: Improvements in pipe wrenches
IPC: B25B7/10
Filed: 1923-07-10
Abstract: 222,945. Major, J. July 10, 1923. Hand grip wrenches.-The outer jaw c is formed at an angle of less than 75‹ with its shank a, and teeth d are formed on the shank adjacent to the jaw c. Reference has been directed by the Comptroller to Specifications 103,226, 112,603, and 160,513.
Patent GB-759095-A (GB)
Title: Improvements in or relating to spinning solutions
IPC: D01F6/18
Filed: 1954-06-17
Abstract: A spinning solution comprises a terpolymer containing in the polymer molecule an average of from 2 to 15 per cent of methyl acrylate, vinyl acetate, acrylamide and/or methacrylamide units, from 1.5 to 15 per cent of units of a vinyl pyridine, and the remainder acrylonitrile units, and a solvent for the terpolymer comprising an aqueous solution of at least the critical concentration which is required to dissolve the terpolymer of a salt which yields highly hydrated ions in aqueous solution, such as zinc chloride and nitrate, calcium chloride, nitrate and perchlorate, lithium bromide, cadmium bromide and iodide, aluminium perchlorate, and sodium, calcium, zinc, guanidine, mono-(lower alkyl) guanidine, and symmetrical and unsymmetrical di-(lower alkyl) guanidine thiocyanates.  Preferred vinyl pyridines are those represented by the formula: <FORM:0759095/IV(a)/1> in which R is H or a lower alkyl group and n is an integer of from 1 to 5.  The terpolymer solutions are used in the production of rods, bars, tubes, tapes, films, and filaments.  In examples, solutions of terpolymers in concentrated aqueous sodium thiocyanate are spun at elevated temperatures into coagulating baths containing cooled dilute aqueous sodium thiocyanate; the filaments produced are stretched in a boiling water bath and may then be thermally retracted by passage through a heat-treating furnace in a relaxed state.  Specifications 459,596, 594,999, 595,043, 595,054, 597,368, 603,873, 670,268, 672,775, 689,743, 689,744 and 695,448 are referred to.
Patent GB-1135559-A (GB)
Title: Diagonal feed material conveyor and blower mechanism
IPC: A01D87/10
Filed: 1966-04-25
Abstract: 1,135,559. Conveyers. INTERNATIONAL HARVESTER CO. 25 April, 1966 [28 May, 1965], No. 17899/66. Heading B8A. Material projected from a nozzle 10 of a centrifugal blower 12, is fed to the latter at an oblique angle of approach by a screw conveyer 56. The drive to the conveyer 56 is via a universal joint (46) (Fig. 4, not shown), from the blower shaft 34, to a shaft (48) under a protective housing member (97) (Fig. 6, not shown). The shaft (48) is connected by a belt drive (53) (Fig. 7, not shown), with the screw conveyer drive shaft (55). The drive belt (53) may be disconnected by release of a jockey wheel (57) controlled by an operating handle (66) and a toggle linkage (62), (64). A port (100) in the blower casing 3 connecting with the housing of the screw conveyer, has an elongated shape which tapers downwardly towards the axis of the screw conveyer. The material is fed to the screw conveyer 56 via a hopper 77 from a conveyer 90 of a wagon 91 drawn by a tractor 94. A tractor 104 is used to draw the blower apparatus.
Patent GB-671059-A (GB)
Title: Process and apparatus for the drying of ceramic goods
IPC: F26B21/00
Filed: 1949-07-06
Abstract: 671,059. Drying ceramics. CREMER, G. July 6, 1949 [Dec. 27, 1948], No. 17916/49. Class 34(ii) In a process for drying ceramic goods 4 in a chamber 3 in a current of hot air rising vertically under its natural buoyancy and escaping through regulatable openings in the cover 6 of the chamber, the permeability of the cover is varied during the drying process to alter the moisture content of the air in the chamber by varying the covers over the said openings. The chamber 3 has a steam or water heater 1 near the bottom from which warm air rises around the goods 4. The cover 6 of the otherwise closed chamber 3 is of highly porous material and the porosity of the opening is varied by placing over the cover 6 plates of different porosity. In a modification in which the process may be continuous, a drying tunnel is divided into sections by sliding partitions, each section having a cover of different porosity.
Patent GB-1346090-A (GB)
Title: Growth of epitaxial single crystal layers
IPC: C30B19/04
Filed: 1971-05-28
Abstract: 1346090 Crystallizing from a liquid; epitaxial deposition NORTH AMERICAN ROCKWELL CORP 28 May 1971 [22 Oct 1970] 17932/71 Headings B1G and B1S The growth rate of a single crystal epitaxial layer is speeded up, without the disadvantages of uneveness and metallic inclusions, which are attendant on supercooling the growth solution, by cooling the external surface of the substrate directly. As shown, graphite block (28) carrying the substrate (22) is cooled by passing air or nitrogen through tubes 32. The furnace temperature setting may be held constant during crystal growth and the flow of cooling gas gradually increased throughout the growth period. A polycrystalline wafer 16 of Pb Sn Te or Ga As may be used to saturate the solution during the heating up period, in graphite crucible 14. To effect crystal growth the tilt of the apparatus is reversed. Crystal growth may take place in a current of H 2  gas.
Patent GB-764088-A (GB)
Title: Textile finishing
Inventor: EVANS JOHN GWYNANT
IPC: D06Q1/08
Filed: 1953-06-30
Abstract: A process for producing mechanical effects or finishes on textile fabrics made wholly or substantially of thermoplastic material consists in impregnating the fabric with water and carrying out the mechanical treatment whilst the fabric is saturated or almost saturated therewith.  The expression "saturated or almost saturated" means a moisture content substantially higher than the textile could acquire in an atmosphere of relative humidity approaching 100 per cent, which in the case of a nylon fabric is about 6.5 per cent. Preferably the moisture content is at least 20 per cent of the dry weight of the fabric.  This saturation may be obtained by immersion and centrifuging or mangling.  The water may contain, in solution or dispersion, not more than 10 per cent by weight of a substance having the property of increasing the ease of thermal deformation of the thermoplastic material.  This substance may be a swelling agent or a potential swelling agent.  The thermoplastic material may be a polyamide such as nylon, a polyurethane, a polyester such as polyethylene terephthalate, a polyvinyl compound or a copolymer, e.g. of polyvinylidene chloride with vinyl acetate or acrylonitrile. Several examples are given.  In example (1) a nylon fabric is passed through a trough containing water and mangled so that the fabric retains 45 parts by weight of water for every 100 parts of nylon. The fabric is then embossed at a temperature of 177 DEG C. or 120 DEG C.  In example 3, a fabric of polyvinyl chloride fibres is passed through a 5 per cent dispersion of a swelling agent, mangled as in example (1) and embossed at 95 DEG C.  In example 4, a canvas fabric of polyethylene terephthalate is treated as in example (1) and embossed at 120 DEG C.  In example 5 a nylon fabric is passed in a wet state between a heated metal cylinder at 115 DEG C. and a ribbed rubber belt, as described in Specification 752,192, to give a localized pressure and compressive shinkage.  In example 6 a fabric of vinylidene chloride polymer fibres is padded in water and then embossed in a calender at 135 DEG C.  In example 7 a nylon fabric is padded in a 5 per cent solution of trichloracetic acid and embossed at 140 DEG C.  In example 8 nylon fabric is first treated in a 2 per cent solution of calcium chloride in methanol and then dried.  It is then padded in water and embossed in a calender as in example 7.  In example 9 nylon fabric is treated as in example 7 but using a 1 per cent phenol solution.  Specification 761,548 also is referred to.