baber/WOPTO huggingface dataset:
Patent GB-885783-A (GB)
Title: Improvements relating to automatic telecommunication switching systems
Inventor: LONG DOUGLAS PERCY
IPC: H04Q3/00
Filed: 1959-02-09
Abstract: 885,783. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 18, 1960 [Feb. 9, 1959], No. 4494/59. Class 40 (4). A subscriber's line circuit comprises a line relay and a two-step cut-off relay, the latter being fully operated in a normal call, but being allowed to relax to its partially operated condition in the event of a permanent loop condition, thereby maintaining the line busy against seizure and preventing it originating a further call. As shown, Fig. 1, the line relay L, in operating to a calling loop, earths the final selector private wire and energizes the start lead stl to bring up ST which causes the allotter AL to hunt for a free line-finder/first selector link when such a link is formed T operates over arc 4 to stop the switch and bring up TA. This earths the - wire to bring up A in the selector which thereupon shunts down T. Relay TA energizes the line finder motor LM and when the calling line is found the test relay P operates over arc 1 and the M-wiper. Relay P stops the line finder and brings up PA which shunts down ST and brings up switching relay H over arc 3. Relay H brings up HH and itself applies full earth to the P-wire so that K operates fully. This enables the meter CM for subsequent operation and releases L. Relay K keeps lead tl disconnected when L releases, disconnects the start lead stl and releases P. In the event of a permanent loop condition, the group selector is eventually forcibly released by means not shown, whereby H is released, so removing the full operating earth for K. Relay H also initiates the slow-release of HH and during this period earth over resistance R 3  holds K in its first step position, whereupon it locks, dependent on L, over resistance R 2 . In this position the line is busied, both in the FS and LF multiples, the allotter start lead stl is held disconnected, and an alarm signal applied to lead alm. In a modification, Fig. 2, the line relay L is held operated when the line-finder is set by the fully-operated condition of the relay K which is allowed to relax to the first step condition where it is held over R 2  when the H relay is released in the LF / 1st selector link. Relay HH is not supplied in this case. Class of service indications (direct or high resistance earth or battery) may be reverted over the + wire of line-finder from first step contacts of the cut-off relay. Specification 612,896 is referred to.
Patent GB-779209-A (GB)
Title: Pesticidal compounds and compositions containing same
IPC: A01C1/06
Filed: 1955-02-15
Abstract: The invention comprises 1,1-bis-(halophenyl)-2,2,2-trichloroethanols of formula <FORM:0779209/IV(b)/1> where X is fluorine, chlorine or bromine.  The compounds are prepared by heating a starting compound of formula <FORM:0779209/IV(b)/2> where X is as above, with aqueous formic acid, or with aqueous acetic acid together with sulphuric acid or a sulphonic acid, at a temperature between 100 DEG  and 125 DEG C. 70 to 95 per cent formic or acetic acid is used.  In examples: 1,1 - bis - (p - chlorophenyl) - 2,2,2 - trichloro - ethanol is prepared from 1,1 - bis - (p - chloro - phenyl) - 1,2,2,2 - tetrachloroethane by heating (1) with acetic acid, water and sulphuric acid or p-toluene sulphonic acid, and (2 to 4) with aqueous formic acid. The corresponding fluorophenyl and bromophenyl compounds are mentioned. The starting compounds, bis-(halophenyl)-tetrachloroethanes are prepared from 1,1 - bis - (halophenyl) - 2,2,2 - trichloro - ethanes, either by direct chlorination, preferably in the presence of light or a catalyst such as benzoyl peroxide, azodiisobutyronitrile or dimethyl azodiisobutyrate, or by dehydrohalogenating with an alkali and then chlorinating the dichloroethylene compound.  The preparation of 1,1 - bis - (chlorophenyl) - 1,2,2,2 - tetrachloroethane is described in Examples 2 and 3.ALSO:Pesticidal compositions comprise compounds of formula <FORM:0779209/VI/1> where X is fluorine, chlorine or bromine, with diluents, carriers or solvents.  Specific compounds mentioned are 1, 1 - bis (chlorophenyl) - 2, 2, 2 - trichloroethanol, and the corresponding bromophenyl and fluorophenyl compounds.  The composition may comprise solid diluents such as clays, pyrophillite, diatomaceous earth, talc, magnesium carbonate, calcium carbonate, and calcium silicate; emulsifiers, wetting agents and dispersants such as an alkylphenoxypolyethoxy ethanol, e.g. octyphenoxypolyethoxy-ethanol and methylene bis (diamylphenoxy-polyethoxyethanol), alkoxypolyethoxy-ethanol, alkylthiopolyethoxyethanol, or an ethylene oxide condensate with a long chain fatty acid, e.g. oleic acid and tall oil acids, or with abetic acid, octylphenol, nonyyphenol, dodecylphenol, alkylphenols condensed with formaldehyde, tert.-dodecylmercaptan, tert.-tetradecylmercaptan, and dodecyl alcohol; alkyl benzene sulphonates, dodecylsulphate, alkylphenoxypolyethoxyethylsulphonates, sodium formaldehyde-naphthalene-sulphonate lignin sulphonate, polyglycerol-oleic acid condensate, polyglycerol-oleic acid-phthalic anhydride; and solvents such as xylene, pine oil, chlorinated hydrocarbons, and naphthas.  The compositions may be used as dusts, wettable powders dispered in water, and emulsions in water as sprays.
Patent GB-433217-A (GB)
Title: An improvement in corrugated or other shaped metal sheets as generally used as building material
IPC: E04D1/26
Filed: 1934-02-12
Abstract: 433,217. Corrugated building sheets and tiles. DONOGHUE, J., 22, Park Street, Llanelly, Carmarthenshire. Feb. 12, 1934, No. 4528. [Classes 20 (ii) and 87 (i)] Metal or asbestos-cement sheets 2, Fig. 1, corrugated to imitate a number of tiles, bricks, or the like in staggered arrangement, are stiffened at the side edges by corrugations 1 which are adapted to mate with the corresponding corrugations of adjacent sheets. Intermediate corrugations parallel to the corrugations 1 may also be provided. Ridge roofing-sheets for use with these sheets are shown in Fig. 3.
Patent GB-511497-A (GB)
Title: Improvements in and relating to moulds particularly for moulding synthetic resin
IPC: B29C33/38
Filed: 1938-02-15
Abstract: 511,497. Moulds for synthetic resin. STOCK, R. T. Feb. 15, 1938, No. 4704. [Class 87(ii)] [Also in Group XVI] A mould structure, for insertion in a press, for moulding synthetic resin, comprises one force constituted by a matrix moulded in a non-metallic material from a pattern, the bolster and the other force being of metal. The non- metallic material may be cement, plaster, artificial stone or marble, flong, synthetic resin or laminated resinous material. The matrix may be moulded from synthetic resin, using a wooden bottom force or pattern with the bolster and other force of the mould structure. The Provisional Specification refers to the moulding of printers' letter type in synthetic resin; it also states that the mould may be for casting or moulding and may be wholly or partly of non- metallic material which may be strengthened by metal.
Patent GB-548658-A (GB)
Title: Fastener for aircraft cowlings, doors, fittings, and the like, applicable to aircraft, sheet-metal and appropriate industries
IPC: F16B5/10
Filed: 1941-04-10
Abstract: 548,658. Fastenings. MILLER, H. A. April 10, 1941, No. 4761. Addition to 541,278. [Class 44] Two panels &c. S, T are fastened together by a stud B with a T-head which is passed through the panels and washers, and then through a wire spring member F supported on T, after which the stud is turned through 90 degrees to engage lateral extensions of the spring, as described in the parent Specification. The spring F may be mounted in a floating manner by coiling it around ferrules N' on rivets N' carried by T, and an ejector spring P may be mounted on the stud to move it out when the fastening is undone, as in Fig. 17. The spring F may have various forms.
Patent GB-112077-A (GB)
Title: A Compound or Composition for use in the Construction of Wooden Barges.
Inventor: CULLING GEORGE HENRY
IPC: B63B5/10
Filed: 1917-04-03
Abstract: 112,077. Culling, G. H. April 3, 1917. Planking.-Wooden barges are constructed with a lining a of a composition, consisting of 32 parts of shredded wood, 6 parts of coal tar or Stockholm tar, and 1 part of pitch, interposed between the timbers b, b' and c, c' forming the sides and bottom respectively of a barge.
Patent GB-660236-A (GB)
Title: Improvements in extrusion device and process
IPC: B21C23/22
Filed: 1949-02-22
Abstract: 660,236. Making electrical contact brushes. BRITISH TABULATING MACHINE CO., Ltd. Feb. 22, 1949 [March 3, 1948], No. 4791/49. Classes 83 (ii) and 83 (iv). [Also in Group XIX] Extruding.-In a method of making a contact brush for an electric accounting - machine, a tuft of metallic wires 12, e.g. of steel piano wire, is positioned within a die 10 and one end is surrounded by a ferrule 15 of ductile metal, e.g. aluminium or copper, which is extruded by a punch 11 into a tapered die cavity about the end of the tuft to bind the wires together. In a modification the die cavity is of rectangular cross-section to extrude a rectangular cross-section slug and spacers 20 are placed between the wires 12, Fig. 6, or the ejector 13 is provided with tongues to space the wires 12.
Patent GB-1181481-A (GB)
Title: Drum for the Transport and Supply of Steel Wire Strands.
IPC: B65H75/00
Filed: 1968-01-31
Abstract: 1,181,481. Winding wire. GLANZSTOFF A.G. 31 Jan., 1968 [3 Feb., 1967], No. 4886/68. Heading B3E. [Also in Division B8] A drum 7 for the transport and supply of steel wire strands 1 for the manufacture of steel cord carcasses for vehicle tyres has wound on it a plurality of strands of the same length which tightly adjoin one another to form a coil, a band 12 being laid between the separate layers of the coil, the width of the coil being equal to or slightly larger than the sum of the diameters of the strands in each layer, and the length of the coil in the axial direction being substantially equal to the width of the band. The band 12 is preferably a steel band, the surface of which is smooth and hard chromium-plated to prevent corrosion. The length of the band is such that the outer convolution of the band covers the outer convolution of the strands. The drum comprises a core 19 the ends of which are threaded to receive flanges 21 which carry strengthening ribs 22. The ends of the wire strands 1 may be welded together prior to winding on the drum.
Patent GB-1067297-A (GB)
Title: Improvements in or relating to the electrolytic refining of copper
Inventor: SNELGROVE WILLIAM RICHARD NOVE
IPC: C25C1/12
Filed: 1965-02-04
Abstract: Impure copper such as molten blister and/or scrap copper is refined by continuously casting it into a strip, cutting the strip into lengths to form electrode plates having the required superficial area, preferably of at least 8 square feet (0.74 square metres), immersing the plates in an electrolyte solution e.g. acidified CuSO4 and electrolytically refining, e.g. by connecting the unrefined electrodes in parallel as anodes and interleaving with pure copper cathodes or arranging the unrefined electrodes in series so that copper from one electrode is dissolved in solution and deposited on another electrode.  Holes or notches by which the unrefined electrode can be suspended may be punched in the strip being cut or in the cut lengths.
Patent GB-276887-A (GB)
Title: Improvements relating to a method and means of refrigeration
IPC: F25B1/00
Filed: 1927-02-21
Abstract: 276,887. Carrier Engineering Co., Ltd., and Carrier, W. H. Feb. 21, 1927. Drawings to Specification. Refrigerating, vacuum machines and systems for.-Methylene chloride is employed as the refrigerant in closed-cycle condensing systems, the pressure in the evaporator and preferably also that in the condenser being below atmospheric. A centrifugal exhauster is preferably employed, and the liquid refrigerant is circulated by a pump from the base of the evaporator and sprayed over pipes traversing the evaporator and conveying the brine &c. to be cooled. The methylene chloride is preferably obtained by distilling or otherwise refining the commercial substance so as to produce a refrigerant having a constant boiling point. Specifications 220,299, 226,844 and 230,936 are referred to.
Patent GB-658880-A (GB)
Title: Improvements in spring mountings for the front or steered wheels of vehicles
IPC: B60G11/113
Filed: 1949-02-24
Abstract: 658,880. Springs; spring suspensions ; movable axle connections; adjusting body height. AKTIESELSKAPET STROMMENS VAERKSTED. Feb. 24, 1949, No. 5042. Convention date, July 10, 1948. [Classes 108(ii) and 108(iii)] In a spring mounting for the steered wheels of a vehicle which are individually suspended by pivotal supporting means, for example by a parallelogram linkage and in which a transverse leaf-spring for the wheels is secured to the vehicle chassis frame substantially at the longitudinal axis of the vehicle, the connection between each of the two free ends of the spring and one of the wheels is formed by a longitudinally adjustable link extending between the .spring end and the pivotal supporting means, the link having line contact bearing engagement with. the spring end and the pivotal supporting means. In the arrangement shown, one end of a leaf-spring 2 is connected to a lower arm 7 of a parallelogram linkage, through a link 12. The link is formed at one end with a T-shaped head 13 having projections which bear with line contact in recesses 20 in a cradle 16 in the arm 7. The other end of the link extends through an aperture in the spring 2, the underside of the lowermost leaf of which is provided with a projection 18 which seats with the contact in recesses 21 in a cradle member 19, slidably mounted on the link 12 and retained thereon by a nut 15. The nut 15 permits adjustment of the spring- loading and also. of the height of the chassis above ground.
Patent GB-103907-A (GB)
Title: Improvements in and relating to Conveyor Driving and other Belts.
Inventor: WALE ALFRED EDMUND
IPC: F16G1/18
Filed: 1916-04-07
Abstract: 103,907. Wale, A. E. April 7, 1916. Belts.-The edges of a conveyer, driving, or other belt, consisting of transverse intercoiled wire helices a, are protected by longitudinal helices b of larger diameter. The pitch of the coils b is slightly greater than the distance between adjacent coils a, so that the longitudinal coils tend to extend the belt. The coils b and also the coils a may be flattened. Inside the coil b there may be arranged two additional longitudinal coils c, d. One of these is pressed on to one face of the belt, and other is then intercoiled with it from the other face. The fabric of the belt may be filled with pitch or other substance and may be covered with paper, &c.
Patent GB-572891-A (GB)
Title: Process for the production of polymerised nitroethylene
IPC: C08F26/02
Filed: 1942-04-20
Abstract: 1 : 2-Dinitroethane, preferably in solution is reacted with a carbonate, bicarbonate or hydroxide of an alkali metal, alkaline earth metal or ammonia in an aqueous medium to give polymerized nitroethylene.  In examples, 1 : 2-dinitroethane dissolved in dioxane is stirred with a suspension of precipitated chalk and 1 : 2-dinitroethane dissolved in methanol is mixed with aqueous ammonium bicarbonate.  Acetone and esters of lower fatty acids may be used as solvents.
Patent GB-234776-A (GB)
Title: Improvement in sucking-devices for separating and feeding sheets of paper to printing machines
IPC: B65H3/08
Filed: 1925-02-25
Abstract: 234,776. Aktiebolaget Dux. June 2, 1924, [Convention date]. Sheet - separators. - A suction separating device for feeding sheets to printing and like machines, of the kind in which a number of nozzles 5 are carried by a suction tube 3 which is moved to and from the top of a pile of sheets and is displaced longitudinally to carry the separated sheets to the machine, is constructed so that the nozzles 5 can move in a direction perpendicular to the pile independently of the movement of the tube 3 in this direction, and each nozzle is detachably secured to the tube. The nozzles 5 are guided by sleeves 7, 8, on frames 4 secured in position at one side of the tube 3 by means of clamps 6, and the nozzles 5 are normally projected below the sleeve 8 by springs 12 acting on the sleeves 7 and on rings 11 secured to pipes 10 carrying the nozzles. When the tube 3 is moved towards the pile, the nozzles 5 which engage the highest parts of an uneven pile move into the frames 4 until finally all the nozzles engage the pile. The pipes 10 are connected by tubes 13 to nozzles 14 on the tube 3, these nozzles being fitted with cocks for controlling the air pressure.
Patent GB-548319-A (GB)
Title: A method of minimising breakage of glass during the production of a ground or polished continuous strip of glass
IPC: B24B7/24
Filed: 1941-04-24
Abstract: 548,319. Glass manufacture. PILKINGTON BROS., Ltd., WALDRON, F. B., and GRIFFIN, J. H. April 24, 1941, No. 5304. Drawings to Specification. [Class 56] Relates to a method of minimizing breakage of glass in the production of a ground and polished strip of glass. According to the invention, a depression is formed in one or both surfaces of the strip whenever an area of local strain is set up by faults in the glass. The depth of the depression must be slightly greater than the thickness of the glass that is removed by grinding, so that the grinders and polishers do not make contact with the area of strain. The depression may be made by a portable grinder or sand blast apparatus while the faulty area is travelling from the leer to the grinding- apparatus.
Patent GB-798043-A (GB)
Title: Electrically conductive ceramic floor-tile units and floors composed of such conductive units
Inventor: FORD GEORGE D
IPC: H01B1/00
Filed: 1956-02-23
Abstract: A conductive ceramic floor tile unit comprises a fired mixture of 29 to 60 per cent of ferroso-ferric oxide and a ceramic clay. Feldspar may also be present.
Patent GB-771022-A (GB)
Title: Improvements in antioxidants for unsaturated organic materials
IPC: C08K5/17
Filed: 1955-02-25
Abstract: Synthetic rubbers are preserved by incorporating therein a small proportion of an N,N1bis-(2-hydroxy-3,5-dialkylbenzyl)-alkylamine of the formula <FORM:0771022/IV(a)/1> where R and R1 each represent an alkyl radical and R1 is alkyl, alkenyl, cycloalkyl or hydroxyalkyl. Specified rubbers are butadiene polymers and copolymers with styrene, acrylonitrile, methyl methylate or vinyl pyridine, isoprene polymers and copolymers with styrene, acrylonitrile or isobutylene and polychloroprene.  Preferred proportions of amine are from 0.1-5 per cent and specified amines are N,N-bis-(2-hydroxy - 3 - tert. - butyl - 5 - methyl - benzyl), -cyclohexylamine or -methylamine, or the 6 - methyl substituted - methylamine or N,N-bis - (2 - hydroxy - octyl - methyl - benzyl) isopropylamine.  The mixture may be cured with the usual curing agents.ALSO:Natural or synthetic rubber preservatives which are N,N - bis - (2 - hydroxy - 3,5 - dialkyl benzyl) - alkylamines having the formula <FORM:0771022/IV(b)/1> where R and R1 each represent an alkyl radical and R1 is alkyl, alkenyl, cycloalkyl or hydroxy alkyl are prepared by reacting two mol. proportions of a phenol of the formula <FORM:0771022/IV(b)/2> with one mol. proportion of a dimethylolamine of the formula R1N(CH2OH)2.  In examples: (1) formalin is treated with a methanol solution of methylamine, which is then treated with a methanol solution of o-tert.-butyl-p-cresol, the product being N,N - bis - (2 - hydroxy - 3 - tert.-butyl - 5 - methyl - benzyl) - methylamine; (2) replacement of methylamine by cyclohexylamine gave the corresponding derivative of cyclohexylamine; (3) proceeding in a manner similar to that of Example (2) the t-butyl-p-cresol is replaced by o-octyl-p-cresol to give N,N - bis - (2 - hydroxy - 3 - octyl - 5 - methylbenzyl)-cyclohexylamine.ALSO:Cured or uncured natural rubber is preserved by incorporating therein a small proportion of an N, N1-bis-(2-hydroxy-3,5-dialkyl benzyl)-alkylamine having the formula: <FORM:0771022/V/1> where R and R1 each represent an alkyl radical and R1 is alkyl, alkenyl, cycloalkyl or hydroxyalkyl.  Preferred proportions of amine are from 0,1-5 per cent and specified amines are N1 N-bis-(2 - hydroxy - 3 - tert - butyl - 5 - methyl - benzyl), -cyclohexylamine or -methylamine, or the 6-methyl substituted methylamine or N-N-bis - (2 - hydroxy - octyl - methyl - benzyl) -isopropylamine.
Patent GB-216228-A (GB)
Title: Process of treating ores and the like
IPC: C22B3/04
Filed: 1923-02-27
Abstract: Ores and concentrates containing zinc, copper, cadmium &c after calcination, if necessary, to convert sulphides into sulphates and oxides, are treated with raw gas liquor, the ammoniacal solution is separated from the sludge or tailings and is distilled to obtain a precipitate containing the zinc &c. in more concentrated form and a distillate which is used again.  The precipitate is dried, calcined, or sublimed with further recovery of ammoniacal vapours.  The zinc &c. in the precipitate and the precious metals, lead, &c. in the sludge or tailings are then extracted by known methods.
Patent GB-724691-A (GB)
Title: Improvements in and relating to brazed tube joints
IPC: F16L13/08
Filed: 1953-03-02
Abstract: 724,691. Pipe joints. AEROQUIP CORPORATION. March 2, 1953 [March 18, 1952], No. 5810/53. Class 99 (1). In a brazed joint in which a pipe 10 is seated on a shoulder 18 in a socket 14, the bore of the socket has a tapered portion 26 providing a recess for brazing material, and a relatively short cylindrical portion 24 closely fitting the pipe. The taper angle may vary from 5 to 30 degrees.
Patent GB-271183-A (GB)
Title: Improvements in transportable compressors, pumps and the like
IPC: B60K25/00
Filed: 1926-03-02
Abstract: 271,183. Drewry, J. S., and Shelvoke & Drewry, Ltd. March 2, 1926. Driving auxiliary parts.-In a motor vehicle having one or more pumps or compressors actuated at will by the propelling engine, the vehicle driving gear is automatically locked when the pumps &c. are in operation and automatically released when the drive to the pumps &c. is disengaged. The invention is shown applied' to a motor vehicle provided with an air compressor and oil pump for charging the oil gears of aeroplanes and includes a special gear box 3 suspended at three points from transverse members 10 bridging the frame members of the chassis. The engine drive shaft 23 carries a sliding clutch pinion 32 operated by a clutch lever 33 to engage internal teeth 36 on a member 24 driving the wheels. With the clutch lever 33 in the position shown, the wheel drive is disengaged and locked by the engagement of the arm 38 on the clutch lever with external teeth 39 on tha member 24. The pinion 32 is now in engagement with a pinion 40 forming part of a wheel train geared to a driven shaft 5 which can be clutched either to a shaft 8 driving the oil pump 9 or to a shaft 6 driving the air compressor.