baber/WOPTO huggingface dataset:
Patent GB-698995-A (GB)
Title: Process for the preparation of nuclear sulphonated 1-carboxy-3-monocyclic aryl-benzo [f] quinoline compounds
IPC: C07D221/06
Filed: 1951-12-24
Abstract: The invention comprises nuclearly sulphonated 1 - carboxy - 3 - monocyclic aryl - benzo-[f]-quinolines and their water-soluble salts, which may be prepared by bringing together at an elevated temperature a monocyclic aryl aldehyde, pyruvic acid, and a 2-naphthylamino sulphonic acid in presence of sufficient water to effect ready reaction, and in particular the water-soluble salts of compounds of the formula <FORM:0698995/IV (b)/1> wherein R is hydrogen or benzoyl and X is hydrogen or chlorine. An alkaline agent such as alkali metal or ammonium carbonates or bicarbonates may be present during the preparation.  The compounds are suitable as light filter dyes.  In examples (1) sodium 2-napthylamine-6-sulphonate is reacted with pyruvic acid and salicylaldehyde and the carboxy group of the product converted to its lithium salt with lithium carbonate, or to its ammonium or triethanolamine salts, or the hydroxy group is benzoylated with benzoyl chloride; (2) sodium 2-amino-8-naphthol-6-sulphonate is reacted with pyruvic acid and benzaldehyde or anisaldehyde; (3) 2-amino-5-naphthol-7-sulphonic acid is reacted with benzaldehyde, pyruvic acid and sodium carbonate; (4) sodium 2-naphthylamine-6-sulphonate is reacted with pyruvic acid and benzaldehyde, 2-hydroxy - 5 - chlorbenzaldehyde, anisaldehyde, o-anisaldehyde, or o-chlorbenzaldehyde.ALSO:The invention comprises nuclearly sulphonated 1 - carboxy - 3- monocyclic aryl - benzo(f)-quinolines and their water-soluble salts, which may be prepared by bringing together at an elevated temperature a monocyclic aryl aldehyde, pyruvic acid, and a 2-naphthylamine sulphonic acid in presence of sufficient water, to effect ready reaction and in particular the water-soluble salts of compounds of the formula <FORM:0698995/IV (c)/1> wherein R is hydrogen or benzoyl and X is hydrogen or chlorine. An alkaline agent such as alkali metal or ammonium carbonates or bicarbonates may be present during the preparation.  The compounds are suitable as light filter dyes.  In examples: (1) sodium 2-naphthylamine-6-sulphonate is reacted with pyruvic acid and salicylaldehyde and the carboxy group of the product converted to its lithium salt with lithium carbonate, or to its ammonium or triethanolamine salts, or the hydroxy group is benzoylated with benzoyl chloride; (2) tne sodium 2-amino-8-naphthol-6-sulphonate is reacted with pyruvic acid and benzaldehyde or anisaldehyde; (3) 2-amino-5-naphthol-7-sulphonic acid is reacted with benzaldehyde, pyruvic acid and sodium carbonate; (4) sodium 2 - naphthylamine - 6 - sulphonate is reacted with pyruvic acid and benzaldehyde, 2-hydroxy-5-chlorbenzaldehyde, anisaldehyde, o-anisaldehyde, or o-chlorbenzaldehyde.
Patent GB-656678-A (GB)
Title: Improvements in or relating to composition for inhibiting the corrosive action of phosphoric acid on iron and steel
IPC: C23G1/04
Filed: 1948-11-19
Abstract: An ionizable compound containing iodine and an aliphatic, cyclo-aliphatic, or aromatic primary amine or nitrile having from 6-20 carbon atoms in the molecule are added to phosphoric acid to inhibit its corrosive action on iron and steel.  0.01-0.5 per cent, based on the acid, of amine or nitrile, e.g. o-amino dicyclohexyl, hexadecylamine, dodecylamine, decylamine, a -naphthonitrile, b -naphtho-nitrile, p-tolunitrile, tetradecanenitrile, benzonitrile, phenylacetonitrile, dodecanenitrile, or octadecane nitrile, and 0.001-0.1 per cent of the iodine compound, e.g. potassium iodide, potassiom iodate, or iodoacetic acid are suitable.  It is stated in the Specification to be known to add a metal below iron and above mercury in the electrochemical series, such as arsenic, to phosphoric acid with or without an acid regulator, such as pyridine bases, crude anthracene, sulphite lye, resins, or wash acids from refining hydrocarbons, to form a protective coating on drums.
Patent GB-286011-A (GB)
Title: Improvements in or relating to electric signalling or control systems
IPC: H02J13/00
Filed: 1926-11-29
Abstract: 286,011. Reyrolle & Co., Ltd., A., and Willoughby, R. Nov. 29, 1926. Duplex telegraphs.-In a duplex telegraphy system, two relays which are respectively controlled by switches at the remote stations and are connected at each end of the line circuit, are associated with resistances in such a manner that the relays may, if desired, be operated simultaneously. Relays G, A located at the control and sub-station respectively are connected in series over the line wire C and resistances J, D with a battery E, and are respectively controlled by switches F, M. When the apparatus is in the condition shown, current flows in a circuit containing the relays G, A and resistances J, D. This current is not sufficiently strong to energize the relays but a measure of the battery power may be given by an instrument O shunted across the resistance J. To operate the relay A, the switch M is closed to short circuit, over the auxiliary contact N, part of the winding of relay G and the resistance J. 'The current is thereby increased and the relay A operated, the energization of relay G being, however, insufficient to cause operation. If now the switch F is closed to short circuit the resistance D, the current is still further increased to cause operation of relay G. Upon operation of the relay G the resistance L is inserted across a portion of the winding of relay G and the resistance J so causing a reduction of current which however is of sufficient strength to hold both relays in their operative positions. If the switch F is opened the current is reduced and the relay G is de-energized, the relay A however remaining operative. If, on the other hand, the switch F remains closed and the switch M is opened, the relay G remains energized whilst the relay A de-energizes. In this manner a relay at one station may be operated or de-energized by its distant control switch irrespective of the condition of the relay at the other station and its corresponding switch. Instead of an earth return between the stations as shown, a second line wire may be employed. In a modfication the line C may be connected to the tapping point of the relay G and the resistance L and contacts N to the end of the relay coil. The Provisional Specification states that the system may be supplied with alternating current, reactances being used instead of resistances.
Patent GB-744531-A (GB)
Title: Improvements in or relating to the method and apparatus for firing blasting charges with a delay period between successive detonations
Inventor: BRIMLEY KENNETH JOHN
IPC: F42D1/05
Filed: 1952-11-28
Abstract: 744,531. Non - contact - making relays. IMPERIAL CHEMICALS INDUSTRIES, Ltd. Oct. 7, 1953 [Nov. 28, 1952], No. 30196/52. Class 40 (4). [Also in Group XXI] An electrically-actuable delay switch comprises a container, an electric resistance wire bearing a bead 4<1> of combustible material and two switch contacts 7<1>, which are insulated from one another by another bead 81. Both beads 4<1>, 8<1> are ignited by a current in the resistance wire associated with 41 and gases generated by the beads create a conducting path between the contacts 7<1> for the passage of an electric current under the potential difference existing between the contacts. The combustible beads comprise collodion coated mixtures of mononitroresorcinate, potassium chlorate and charcoal.
Patent GB-1158551-A (GB)
Title: Electrolytic Process for preparing Mercuric Oxide
IPC: C01G13/02
Filed: 1966-07-06
Abstract: 1,158,551. Mercury cells. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 6 July, 1966 [9 July, 1965(2); 22 Oct.. 1965; 27 Oct. 1965; 31 Jan., 1966; 2 May, 1966], No. 30411/66. Heading H1B. [Also in Division C7] A mercury cell comprises a mercuric oxidegraphite mixture as the negative pole 17, a disc 18 of compressed absorbent material such as polystyrene fibres or paper containing KC1 as electrolyte, a separator 19, a zinc counter electrode 20 an inner case 16, an outer case 21, a paper cylinder 22 for absorbing electrolyte, double sealing plates 23 and an insulator packing 24.
Patent GB-756064-A (GB)
Title: Improvements in linear dimension gauges or the like
IPC: G01B5/06
Filed: 1953-11-04
Abstract: 756,064. Gauges. DEGEN, A. A. C. Nov. 4, 1954 [Nov. 4, 1953], No. 30463/53. Class 106(2). The work is supported on a table 21, Fig. 2, and gauged by the appropriate one of a number of feelers 32, 33, 34 each adjustably mounted in a carrier 29 pivotally mounted between two pairs of parallel links 27, 28, Fig. 3, the links being pivotally mounted in the frame by spindles 30, 31. A crank 39 on one end of the spindle 31 has a link 40 connected to a lever 41 pivotally mounted on the frame and having an operating handle 42. A spring 43 connected to the lever 41 tends to urge the lever system in a direction raising the feelers 32-34 away from the work and this action is normally greater than that of a further spring 49 which tends to rotate the links 27, 28 to lower the carrier 29 with the feelers into contact with the work. The action of the spring 43 is transmitted to the links 27, 28 by means of a transverse rocker bar 47 pinned by a pin 45 to the spindle 31 and normally urged by the spring 43 acting through the levers 40, 41 into contact with lugs 48 on the lower links 28. Depression of the handle 42 removes the bar from contact with the lugs 48 whereupon the springs 49 rotate the links 27, 28 in a counterclockwise direction. Gauging movements of the feelers are transmitted by a pin 36 on a lug 35 projecting from the rear of the carrier 29 through a two-armed lever 37, 25 to the plunger 24 of the dial gauge 23. The feeler therefore only actuates the gauge over the latter part of its movement towards the article and the apparatus may be preset to indicate divergence from a standard article. Fine adjustments and stop members are provided.
Patent GB-829157-A (GB)
Title: Improvements in knife grinding devices
IPC: B24B3/36
Filed: 1957-09-28
Abstract: 829,157. Sharpening cutters in situ. HOOGLAND, M., [trading as HOOGLAND ING., E.]. Sept. 29, 1958 [Sept. 28, 1957], No. 30465/57. Class 60. A device for sharpening the knife 3 of a cloth cutting machine comprises a gear casing 7 carrying a vertically movable member 8 to which is pivotally mounted a pair of arms 9, 9a carrying elements 11, 11a for grinding the cutting edge of the blade, and two resilient contact arms 18 carrying electric contacts 19 which close when the presser foot 13 of the machine is in its lower position. The machine, which comprises a base 1 carrying an electric motor 2 driving a reciprocating rod 2a connected to the knife 3, is provided with a cover 5 on which is mounted the device consisting of a reversible motor 6 driving through gears in the casing 7 a threaded spindle 8a. The spindle engages a non-rotatable nut attached to the vertically movable member 8 having at its lower end the pivoted arms 9, 9a which are urged together by a spring 21. The arms carry holders 11, 11a which are adjustable to the angle of the knife and carry the elements 12, 12a consisting of diamond chips or dust bonded ceramically or by a vegetable or mineral binding media; the element 12a is in two parts so that the element 12 can move between the parts during the sharpening operation. During upward movement of the member 8, the arms are moved apart by engagement with cams 15, 15a on the casing so that visibility is not impaired during cutting. The motor 6 is controlled by a manual switch and the contacts 19, which are closed by a roller 20 on the arm 14 of the presser foot 13 only when the cutter is in its lower position, and may be reversed by switches actuated at the limits of movement of the member 8. The axis of the member 8 is inclined to the edge of the knife so that the elements move transversely to the knife during their travel to prevent the formation of burrs at the cutting edge.
Patent GB-1142104-A (GB)
Title: Improvements in or relating to ferromagnetic high-permeability manganese-zinc-ferrite cores
IPC: C04B35/26
Filed: 1967-07-03
Abstract: 1,142,104. Magnetic compositions. SIEMENS A.G. 3 July, 1967 [1 July, 1966], No. 30505/67. Heading H1H. A Mn-Zn ferrite cone has the composition (in mole per cent referred to the starting mixture of oxides): and contains in addition 0À05-0À2% CaO by weight. It is produced by mixing the starting oxides, presintering at 700-900 C. for 1 hr, wet grinding while adding CaCO 3  or CaO, pressing, sintering at 1100-1300 C. for 1-4 hrs. preferably in a N 2  atm. containing 0À1-5% O 2 , and cooling, e.g. in N 2  containing less than 0À1% O 2 , at 400-500 C./hr. down to 900 C. and then at 100 C./hr. down to 200 C. The products have permeabilities of 1250-3260; loss factors (tan #/Áa) of 1À3-4; temperature coefficients (Tk/Áa) of 0À06-1À9 over at least 40 C., e.g. - 20 to +80 C.; and time-instability values (- i 2 /Áa) of 0À65-4. Sintering at 1200-1260 C. gives small temperature coefficients; at 1100-1150 gives small losses. Specific compositions disclosed are:
Patent GB-734795-A (GB)
Title: Process and apparatus for cutting continuous filaments into short lengths
Inventor: SPEAKMAN RAYMOND HOLDEN
IPC: D01G1/04
Filed: 1952-12-03
Abstract: 734,795. Stapling fibres. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 20, 1953 [Dec. 3, 1952], No. 30639/52. Class 120(3). In cutting continuous filaments into short lengths, a tow or bundle is fed in zig-zag folds into the nip formed by the overlap of two circular knife-edged discs which cuts through every cross-member of the folds. As shown in Figs. 1 and 2, rolls 1 feed a tow 2 into a flexible tube 3 through which it is passed by a rapid air stream therein : the lower part of the tube 3 is oscillated over the nip of discs 5 and 6 by means of an eccentric drive 1 so that the tow is laid in folds into the nip. In a modification, Figs. 3 and 4, tow 10 supplied by rolls 9 is passed through a tube 11 by an air stream entering at 12 : a second air stream from a tube 13 rendered intermittent by a disc 14 impinges on the tow to produce the folds therein. Specification 359,511 is referred to.
Patent GB-1099611-A (GB)
Title: Method and apparatus for making wire rope
IPC: D07B3/04
Filed: 1965-07-19
Abstract: 1,099,611. Wire rope. UNITED STATES STEEL CORPORATION. July 19, 1965 [July 24, 1964], No. 30663/65. Heading D1T. A method of making a wire rope in a stranding operation in which outer strands 12 are placed in the valleys of an independently formed wire rope core 16 comprises passing the strands of the core 16 through a plate 60 to be untwisted and then stranding the outer strands 12 and the untwisted inner strands at a common point of twist such as a closing die 26 so that the strands 12 are laid in the valleys between the strands of the inner core. The strands 12 on spools (10) are mounted in a rotatable, horizontal tube (2) (Fig. 1 not shown) and the independent wire core is in a spool (10) at the end of tube 2. The tube (2) carries, on a mast (14) a twister head 22 which has a pulley 24 for each strand 12 and a central aperture 20 for the rope 16. The untwisting disc 60, forming an auxiliary twisting head, (Fig. 4 not shown) has holes 62 to be carried by rods 56 secured to the twisting head and grooves 68 in its periphery to guide the strands 12. The central strand from the core passes through an aperture 70 in the centre of disc 60. The support 40 for the rods 56 is rotatably adjustable on the twisting head.
Patent GB-817081-A (GB)
Title: Improvements in or relating to moulding apparatus for making infants shoes
IPC: A43D8/04
Filed: 1956-10-09
Abstract: 817,081. Boots &c. HERLIHY, W. F., and HERLIHY, J. J., [trading as LOWELL COUNTER CO.]. Oct. 9, 1956 [June 15, 1956], No. 30736/56. Classes 17(1) and 17(2) An appartus for moulding the heel end of infants' shoes has undivided male and female moulds both of which taper slightly in a forward direction so that during engagement they exert a stretching and reducing force on the upper material. A onepiece male part 36 mounted on a part 46 is movable vertically into a one piece female part 34 having a heel shaped concave recess 38. Both the male part 36 and the recess 38 are rounded at the back and have forwardly extending sides which taper inwardly slightly in a forward direction sufficient clearance being left for the parts to engage with a compressive and stretching action on the shoe upper, The end 42 of the female part 34 is against a frame 44 while the end 40 is engaged by a wiper 52 which shapes a bottom flange on the shoe upper. As described the quarters 12 of an infant's shoe, stitched to a vamp 14, are united by a butted back seam and covered by a large external backstay thus forming a pocket for the insertion of a counter stiffener. The assembly is placed over the male part 36 with its upper edge coinciding with the part of the mould which engages the frame 44. The moulds are engaged thus stretching and smoothing the upper and a bottom flange is formed by the wiper 52. If desired the moulds may be heated. Specification 659,705 is referred to.
Patent GB-1189475-A (GB)
Title: 08-Alkylated-17alpha-(2-Alkynyl)estra-1,3,5(10)-Triene,3,17beta-Diols, Ethers and Esters Thereof
Inventor: KLIMSTRA PAUL DALE
Filed: 1967-07-04
Abstract: 1,189,475. 18-Alkyl-estra-1,3,5(10)-trienes. G. D. SEARLE & CO. 4 July, 1967 [11 July, 1966], No. 30743/67. Heading C2U. Novel steroids of the formula (wherein R and R<SP>1</SP> are each H, C 1-7  alkyl, alkanoyl or tetrahydropyranyl; X is H or C 1-7  alkyl; Y is H or CH 3 ; and Z is alkyl, Y and Z together containing not more than 3 carbon atoms) are prepared from the corresponding 17-ones and the appropriate 2- alkynyl metal compounds. Esters and ethers of the free ols are prepared by standard procedures. Cleavage of the 3-tetrahydropyranyl ethers gives the free 3-ols; similarly acylates may be hydrolysed. The dl-mixtures obtained in these processes may be resolved by standard techniques.
Patent GB-1089595-A (GB)
Title: Gas separation centrifugal pump for liquid circulating systems
IPC: F24D3/00
Filed: 1966-07-08
Abstract: 1,089,595. Centrifugal pumps. INTERNATIONAL STANDARD ELECTRIC CORPORATION. July 8, 1966 [July 9, 1965], No.30759/66. Heading F1C. A centrifugal pump for hot and chilled water circulating systems, has a dynamic separating chamber 21, Fig. 3, in which gases move to the centre and flow through an opening 58, a stationarydiffuser 54, 56, 57 and a chamber 51 to a pipe 16 which may be connected to an expansion tank (14), Figs. 1 and 2 (not shown). The gas-free liquid in chamber 51 is drawn through a tube 38 and bores 42 to the suction side of the impeller 29. The impeller is an integral construction comprising front and back plates connected to the boss 35 through blades 46 and to tube 38 through a hexagonal member 37.
Patent GB-1261763-A (GB)
Title: Apparatus for producing castings
IPC: B22C9/04
Filed: 1969-06-18
Abstract: 1,261,763. Flasks. GRUNZWEIG & HARTMANN A.G. 18 June, 1969 [19 June, 1968], No. 30822/69. Addition to 1,254,592. Heading B3F. A moulding box has gas-permeable floor 2 and walls 10 and is connected via a'pipe 5 and threeway valve 6 to a source of compressed gas or of vacuum. The outsides of the walls 10 form one side of an otherwise air-tight closed chamber 11 which is independent of the chamber 3 and which communicates with the atmosphere through an extraction device 12. Moulding material contained in the moulding box is formed into a fluidized bed by admission of compressed gas through the floor 2, a pattern which gasifies in contact with the poured melt introduced into the moulding material and the latter compacted around the pattern by shutting off the compressed gas and applying a vacuum. Hot gases evolved during the casting process are extracted through the walls 10 by the device 12.
Patent GB-524500-A (GB)
Title: Improvements in and relating to photographic materials and the processing thereof
IPC: G03C1/825
Filed: 1938-10-26
Abstract: 524,500. Photographic materials; colour photography; sound films. KODAK, Ltd., (Eastman Kodak Co.). Oct. 26, 1938, No. 30923. Drawings to Specification. [Class 98 (ii)] [Also in Group IV] Photographic material has at least one lightscreening layer or image containing a silver salt of a coloured thiobarbituric acid derivative containing an aryl or heterocyclic substituent having at least one carboxylic acid, sulphonic acid, hydroxyl, or imino group, in particular a derivative in which the aryl or heterocylic substituent is linked through a single or double bond to the 5-carbon atom of the thiobarbituric acid. The colouring material may be in an anti-halation layer, in a filter layer coated on a light-sensitive layer or between two lightsensitive layers, or in a part or whole of a lightsensitive layer. A filter layer may be produced by mixing a silver salt, such as silver nitrate, phosphate, citrate, oxalate, cyanate,ferricyanide, arsenite, arsenate, chloride, or bromide in the presence of gelatine with the thiobarbituric acid derivative. A silver salt image, of silver ferricyanide, chloride, bromide, orthophosphate, arsenate, arsenite, oxalate, or cyanate may be toned by the process, which may be applied to reversed silver salt images or sound images or multilayer material. The intensity of the picture may be reduced by treatment with alkaline hypo or dilute ammonium hydroxide solution. The toning may not be carried to completion. The coloured silver salt may be converted to a salt of copper, tin, lead, gold, or mercury. Salts such as silver phosphate, ferricyanide, arsenate or oxalate may be used as the sensitive material in copying. Compounds referred to are 4-sulphophenylazothiobarbituric acid, 2-carboxyphenylazothiobarbituric acid, 3-carboxyphenylazothiobarbituric acid, 3-carboxy - 4 - hydroxyphenylazothiobarbituric acid, 3 - hydroxyphenylazothiobarbituric acid, 3 - hydroxymethylphenylazothiobarbituric acid, #- carboxy - 4 - methoxyphenylazothiobarbituric acid, and 4 - hydroxybenzylidenethiobarbituric acid. Specifications 440,032, 444,198, 524,556, and 524,558 are referred to. Coloured thiobarbituric acid derivatives containing an aryl or heterocyclic substituent having at least one carboxylic acid, sulphonic aeid, hydroxyl, or imino group are prepared by the reaction with the reactive methylene group of the thiobarbituric acid of an aromatic or heterocyclic compound containing for example, a diazotized amino group or an aldehyde group. The Provisional Specification refers to the use of phenylazothiobarbituric acid. Specification 475,786 also is referred to.
Patent GB-300395-A (GB)
Title: An improvement in combination back to back grates
IPC: F24B1/182
Filed: 1927-11-19
Abstract: 300,395. Scottish Central Iron Co., Ltd., and Harrison, W. Nov. 19, 1927. Addition to 254,486. Combined open fireplaces and cooking- stoves; convertible close and open fireplaces; trivets. - The back-toback grate of the parent Specification is provided with means for cutting off direct communication between the fireplace and chimney when the oven and hotplate are to be used. The means shown comprises a cover 4 removably pivoted at the front edge in the side cheeks 1 so that it may be turned over the fire, when it occupies an inclined position with its back edge against the fireback. In the position shown it forms a trivet, and is supported by the fall-bar 6.