baber/WOPTO huggingface dataset:
Patent GB-542149-A (GB)
Title: Improvements in or relating to the production of photographic images
IPC: G03C7/384
Filed: 1940-06-26
Abstract: 542,149. Hydroxypyrazoles. KENDALL, J. D., and FRY, D. J. June 26, 1940, No. 10901. [Class 2 (iii)] [Also in Group XX] 4-Hydroxypyrazoles of the general formula where A is a hydrogen atom, a carboxylic group, a carboxylic ester group, a carboxylic amide or substituted carboxylic amide group, and B is an aryl or substituted aryl group, may be prepared by coupling an α-halogen acetoacetic ester with an aryl diazonium compound and treating with a basic substance to produce ring closure. A weak inorganic base gives the ester and a strong inorganic base the acid. The non-substituted compound (where A is hydrogen) is obtained by heating the acid. The amides are obtained by heating the esters with ammonia or primary or secondary amines, such as mono- or di-alkylamines, mono- or di-arylamines, mono- or di-aralkylamines, alkyl aralkyl amines, aralkyl aryl amines, heterocyclic amines (including both cyclic amines and the amino derivatives of heterocyclic compounds), cyclohexylamine, and diamines. In the latter case re-action may take place at both amino groups. Ethyl α - phenylhydrazo - # - keto - y - chlorbutyrate is prepared by adding a cooled solution of benzene diazonium chloride to a cooled alcoholic solution of ethyl γ-chloracetoacetate and adding sodium acetate. The corresponding γ-brom compound may be similarly prepared. 1 - Phenyl 4 - hydroxypyrazole 3 - carboxylic acid is prepared by boiling the above ester with aqueous sodium hydroxide and precipitating with hydrochloric acid 1-phenyl-4-hydroxypyrazole is prepared by heating this acid. The corresponding ethyl ester is prepared by replacing the aqueous sodium hydroxide with ethyl alcoholic potassium acetate. The anilide is prepared from this ester by heating with aniline. Specifications 133,034, [Class 98 (ii)], and 515,022, [Group XX], are referred to.
Patent GB-1139865-A (GB)
Title: Process for the production of polyester fibres with a high shrinkage
Inventor: GERNHARDT SIEGMUND
IPC: D04H1/435
Filed: 1967-03-08
Abstract: 1,139,865. Producing high-shrinkage polyester fibres. INSTITUT FUR TEXTILTECHNOLOGIE DER CHEMIEFASERN. 8 March, 1967, No. 10954/67. Heading B5B. Polyester fibres of high shrinkage are produced by treating spun threads or hanks made therefrom with a compound which produces a physical change in the fibres for a period of time in which the fibre material does not begin to shrink and which is always less than 10 seconds at a temperature below the second order transition temperature of the fibre material and then washing out the compound. Specified fibres are those of polyethylene terephthalate and the polyesters from dimethylterephthalate with adipic acid esters. Specified treating compounds are halogenated aliphatic and aromatic hydrocarbons, e.g. dichloroethane, aqueous phenol solution and aqueous sodium chloride solution. The treatment may be carried out several times using the same or different compounds, and is preferably effected while the threads or hanks are being stretched.
Patent GB-215185-A (GB)
Title: Improvements in machinery for separating particles from air
IPC: B04C5/12
Filed: 1923-04-23
Abstract: 215,185. Robinson & Son, Ltd., T., and Robinson, C. J. April 23, 1923. Density separators.-Swirling is prevented in the air-exit tubes 11, 12 of cyclone separators by the introduction of diaphragms 16 which extend from the eyes of the operating fans 9, 10 to points below the lower ends of the tubes 11, 12.
Patent GB-1221407-A (GB)
Title: 0,2,3,4-tetrahydro-7-substituted-6-sulfamyl-4-quinazolinones, process for preparing the same and pharmaceutical compositions comprising the same
IPC: C07D239/91
Filed: 1969-02-28
Abstract: 1,221,407. Quinazolinone derivatives. WALLACE & TIERNAN Inc. 28 Feb., 1969 [29 Feb., 1968], No. 11001/69. Heading C2C. Novel compounds (I) (including salts thereof) wherein R 1  signifies H, alkyl or phenylalkyl, R 2  signifies ÀCO 2 H, Àalkyl À CO 2 H, À alkyl À CO 2  À optionally halo substituted alkyl, À CO 2  À alkyl (including cycloalkyl), À CONH 2 , À alkyl ÀCONH 2 , . CONH . alkyl, À alkyl À CONH alkyl, À CON À (alkyl) 2 , À CO À N = A or À alkyl À CO À N = A (N=A signifies a heterocyclic ring), R 6  and R 9  signify H, alkyl, alkoxy, alkoxyalkyl, OH, NH 2 , CN, or alkylamino, R 7  and R 8  signify H, alkyl or aralkyl or together with the adjacent nitrogen comprise a heterocyclic ring, X signifies halogen, CF 3  or CN, R 3 , R 4  and R 5  signify H, OH, alkyl, alkoxy, alkoxyalkyl, NH 2 , SO 2 NH 2 , CN, CF 3  or halogen and n is 0, 1, 2, 3 or 4, are obtained: (a) by reacting an amide (II): with an aldehyde, R 2 ÀCHO, or with an acetal thereof (hydrogenation and alkylation may subsequently be utilized to, respectively, replace a 1-benzyl group by a hydrogen atom and to alkylate the 6-sulphamoyl group); or (b) by reducing an unsaturated quinazolinone with sodium borohydride. Pharmaceutical preparations showing diuretic activity contain as active ingredient compounds (I); administration is orally, interperitoneally and intravenously.
Patent GB-649830-A (GB)
Title: Improvements in or relating to anti-glare headlamp systems for vehicles
IPC: F21S8/10
Filed: 1948-04-21
Abstract: 649,830. Anti-dazzle devices for vehicles. GRINFELD, R. April 21, 1948, No. 11006. Drawings to Specification. [Class 103(ii)] An anti-glare headlamp system for vehicles comprises, in combination with the normal headlamps of a motor vehicle, at least one additional lamp capable of producing totally and rectilinearly polarized light, having a plane of vibration which makes an angle of substantially forty-five degrees with the vertical; an analyzer screen of observation, complementary to the additional lamp, which partly or totally covers the wind-shield of the vehicle, and with its vibration plane orientated parallel to that of the polarized light from said additional lamp and means adapted to switch on the additional lamp or the normal headlamps and simultaneously to switch off the normal headlamps or the additional lamp respectively. A second screen may be placed on the rear-viewing mirror, having its vibration plane orientated normally to that of the polarized light from said additional lamp.
Patent GB-223510-A (GB)
Title: Improvements in and relating to floating covers for liquid in storage tanks
IPC: B65D88/38
Filed: 1924-05-05
Abstract: 223,510. Wiggins, J. H. May 5, 1924. Tanks.-A floating cover for oil &c. storage tanks comprises a central portion B which may be provided with radial reinforcements N and truss members 0, and a peripheral portion composed of members C outwardly pressed by spring plungers G and connected to the central portion by links F. The members C are connected to each other by fabric, and to the rim E of the portion B by a flexible member D. Excessive pressure is relieved through outlets I having automatic operating closures J. Rainwater is drained from the cover by a pipe K sealed by a, cup K<2>, and the water collecting in a well K<1> or on the bottom of the tank is allowed to flow off through cocks M<1>, L. The cover is supported, when the tank is empty, by legs R, locked in position in guides R<1>.
Patent GB-539838-A (GB)
Title: Improvements in or relating to radiators for heating buildings
IPC: F28D1/02
Filed: 1940-07-02
Abstract: 539,838. Radiators for heating buildings. CASE, W. G. July 2, 1940, No. 11171. [Classes 64 (ii) and 64 (iii)] A steam or hot water radiator consists of a casing with upper and lower horizontal passages A and a number of vertical passages B with intermediate horizontal bars forming slots D. Air circulates through the lower slots into the space F behind a unit and out through the upper slots. A unit may close 'the front of a recess or two spaced units may be placed back to back to form a free-standing radiator. U.S.A. Specification 1,902,880 is referred to.
Patent GB-760980-A (GB)
Title: Improvements in or relating to the production of oil-soluble alkyl aromatic sulphonates
IPC: C07C309/28
Filed: 1954-04-15
Abstract: The process for the preparation of oil-soluble alkyl aromatic sulphonates claimed in the parent Specification is improved by refining the aromatic petroleum extract prior to its alkylation by dissolving the extract in a light petroleum fraction boiling below 100 DEG  C. and containing not more than 2 per cent aromatic hydrocarbons and subjecting the solution to selective adsorption of the aromatic hydrocarbons in the extract on silica gel which is thereafter eluted with an aromatic hydrocarbon solvent or organic polar solvent so as to remove from the gel that portion of the adsorbed aromatic petroleum extract which has a refractive index (Nad line at 20 DEG  C.) not in excess of 1.6 and using that portion of the extract in the alkylation step.  The refining results in increased yields of the oil-soluble sulphonates.  Preferably, the aromatic petroleum extract is dissolved in petroleum ether (40-60 DEG C.) and the solution is allowed to percolate through a bed of silica gel until the bed is saturated with aromatic hydrocarbons as shown by a rise in the refractive index of the effluent.  The bed is then washed with petroleum ether and thereafter eluted with benzene or carbon tetrachloride and the effluent collected until the solvent-free effluent has a refractive index of 1.6.  The collected fraction is stripped of solvent and alkylated with the appropriately selected olefine in a low-boiling paraffinic solvent using sulphuric acid catalyst.  The product is freed from acid and solvent and if desired washed with a neutralizing agent, such as aqueous alcoholic NaOH.  The resulting alkylate is then sulphonated for example with oleum or sulphuric acid in a refrigerating solvent, e.g. liquid sulphur dioxide or butane at -10 to +10 DEG  C., or with sulphuric acid at 0-60 DEG  C. in absence of a solvent.  The sulphonation product may then be freed from sulphuric acid and solvent and neutralized with aqueous NaOH; sodium sulphate in the product may be removed by dissolving in ethanol and filtering while unreacted oil may be removed by counter-current extraction with aqueous isopropanol. When the acid sulphonation product contains unchanged alkylate, the mixture may be neutralized with aqueous alcoholic NaOH after removal of excess H2SO4 or oleum, and thereafter any residual hydrocarbon material may be removed by means of a light petroleum solvent.  An example employs a sulphur dioxide extract of a lubricating oil distillate boiling in the range 300-400 DEG  C. as starting material and a mixture of C14\-18 olefines as alkylating agent.
Patent GB-1147044-A (GB)
Title: Method of producing cis-1,4 polybutadiene
IPC: C08F136/06
Filed: 1966-03-15
Abstract: 1,147,044. Nickel oxides. JAPAN SYNTHETIC RUBBER CO. Ltd. 15 March, 1966 [18 March, 1965], No. 11367/66. Heading C1A. [Also in Division C3] Oxides of nickel, of the general formula Ni x O y , where x is a number from 1 to 2, y is in the range of 1 to 3 and the ratio of to x is in the range of 1 : 1 to 1À5 : 1, excluding 1 : 1, are made by heating or thermally cracking an inorganic salt of divalent Ni at a temperature below 700 C. in the presence of O 2 , or air, or in vacuo, or heating nickel peroxides. Specified Ni salts are Ni(NO 3 ) 2 , NiSO 4 , NiF 2 , NiCl 2 , NiBr 2 , Nil 2 , and Ni(OH) 2 . In Example I, NiO 1 . 07  is made by heating Ni(NO 3 ) 2  in O 2  at 550 C. for 140 minutes. In Example VI, NiO 1 . 5  by heating Ni(NO 3 ) 2  in oxygen at 350 C. for 4 hours. In Example XIV, NiO 1 . 05  is made by heating NiF 2  in O 2  for 130 minutes at between 540 C. and 560 C. In Example XV NiO 1 . 03  by oxidizing NiSO 4  by same procedure as Example XIV. In Example XVI, NiO 1 . 06  is made by oxidizing NiCl 2 . In Example XVII, NiO 1 . 09  is made by heating a compound of the formula Ni(OH) 3  at 700 C. for 2 hours in presence of O 2 . Ni(OH) 3  is made by reacting NiSO 4  and NaOH in aqueous media in presence of sodium hypochlorite.
Patent GB-539695-A (GB)
Title: An improved hair curler
IPC: A45D2/28
Filed: 1940-07-09
Abstract: 539,695. Hair curlers. TWINCO, Ltd. July 9, 1940, No. 11415. Convention date, July 15, 1939. [Class 131] A hair curler comprises a tubular member 10 and a semitubular member 11 formed of moulded plastic material each having a handle portion 12, a closed wire clamp, having one end seated in recesses 17 formed in ears 16 on the semitubular member and a recess formed in the tubular member 10, and a U-shaped spring 21 the legs 23 of which fit in recesses in the tubular and semitubular members and hold them together, these members being unconnected except by the spring. Specification 541,576 is referred to.
Patent GB-950652-A (GB)
Title: Improvements relating to measuring apparatus
Inventor: SHEPHERD ALEXANDER TURNBULL
IPC: G01D5/36
Filed: 1961-03-29
Abstract: 950,652. Converting. FERRANTI Ltd. March 27, 1962 [March 29, 1961], No. 11437/61. Heading H2F. [Also in Division G1] A three-phase signal is stabilized by application to the bases of three transistors having a common emitter load and converted to a twophase signal by a potentiometer having three supply points and two tappings. Photo-cells 324, 325, 326 generates signals 120 degrees apart on movement of a Moire fringe pattern 300. If the outputs of all the cells change in phase with one another due to light intensity variations, the increased current through the load resistor 334 raises the emitter potentials to reduce the transistor current, thus compensating for unwanted light source variations. The three-phase output from transistors 324, 325, 326 is applied to points P, Q, R on a resistor 338, and a two-phase signal in quadrature is picked off by tappings A<SP>1</SP>, B<SP>1</SP> which are adjusted to positions 45 degrees either side of the point Q. Specification 760,321 is referred to.
Patent GB-717542-A (GB)
Title: Water heater
IPC: F24H1/52
Filed: 1952-05-06
Abstract: 717,542. Water heaters. HOUCHMAN, B. May 6, 1952, No. 1]453/52. Class 64(1) A water heater comprises a closed horizontal cylindrical, prismatic or similar shell 1 filled with water serving as a heattransfer medium, a system of smoke tubes 3, and a system of consumer water tubes 7, the two systems lying within the shell parallel to its axis, on opposite sides of a substantially vertical plane through the axis of the cylinder, and each system extending approximately the whole way round the half shell in which it lies. Hot gases from a firebox or burner flow through a central flue 2 to a rear smoke box, then through the flue tubes 3 to a front smoke box, and finally through a bottom flue 5 to a chimney 6. The water tubes 7 are connected together in series by headers or bends.
Patent GB-181195-A (GB)
Title: Improvements in powder and the like distributing devices
IPC: B41G1/00
Filed: 1921-04-21
Abstract: 181,195. Walshaw, G., and Field, Sons, & Co., Ltd. April 21, 1921. Bronzing and the like.- The bronze-powder receptacle of a bronzing-machine is provided with a stirrer adapted to traverse to and fro from end to end within the receptacle. A hopper A of the usual kind having a distributing-roller B is provided with bearings e for a double worm F driven from a part of the machine by a pulley e<1> and carrying a self-reversing nut member E to which is fixed a stirrer D provided with extensions d, d<1>, Fig. 2. The member E is in two parts f<1> secured together by screws and enclosing a swivel nut f, a cap f<2> fixed to the top of the latter engaging a guide-rail G fixed to bearings g, mounted on the worm F, and to the bearings e.
Patent GB-1459823-A (GB)
Title: In-line electron gun assembly for colour picture tube process for the preparation of liquids for biological application  and as oxygen carriers
IPC: H01J29/50
Filed: 1974-03-14
Abstract: 1459823 Colour television tubes HITACHI Ltd 14 March 1974 [15 Oct 1973] 11520/74 Heading H1D In an in-line gun assembly for a colour television tube which includes two grid electrodes, 3, 4 and 5, Fig. 3, each of cup-shaped form and with their closed ends adjacent and provided with three beam-transmission apertures 4h, 5h having interned edges X, cylindrical electrodes 81 are mounted in the apertures in contact with the inturned edgs, Fig. 4b, to screen the electron beams from the effect of the walls of the cup-shaped electrodes, and hence reduce astigmatism. As shown, the cylinders may be mounted by the engagement within one end of the inturned aperture edge, by pressure engagement of legs 82 with the inner wall of the cup at the other end, Fig. 4b (and Fig. 4a, not shown). Reference is made to an alternative arrangement in which the cylinders are of the same diameter as, and are aligned with, the inturned edges of the apertures.
Patent GB-1030471-A (GB)
Title: Improvements in or relating to lifting tables, platforms and the like
IPC: B62B3/065
Filed: 1962-03-26
Abstract: 1,030,471. Platform elevators. E. J. RATCLIFF. Jan. 28, 1963 [March 26, 1962], No. 11524/62. Heading B8H. A load-lifting platform 11, connected at each side to a base 10 by links 12, 13 acted on by a double-acting hydraulic ram 21, is provided with castors 27a, 27b arranged so that when the platform 11 is lowered to bring the castors into contact with the ground, further retraction of the ram raises the base 10 from the ground. The ram 21 is pivoted between a cross-member 10b of the base 10 and a cross-member 13b extending between the links 13. A pair of shortstroke rams 30 are provided on the base 10 and act on the lower ends of the links 12 to assist the initial raising of the platform 11. A housing 40 on the base 10 contains a reservoir, a battery and a motor-driven pump, and a U-shaped handle 46 is engaged in sockets provided on the base.
Patent GB-233879-A (GB)
Title: Improvements in and in means used in the manufacture or treatment of felt and the like
IPC: D04H17/00
Filed: 1924-05-10
Abstract: 233,879. Clegg, L. H. May 10, 1924. Fulling.-In a process for fulling felt, of the kind described in Specification 12800/10, in which a batt or lap is wound into a roll f and enclosed in a sheath or wrapper before being subjected to the action of the fulling hammers or feet, the material is sprayed with water, weak acid, or soap solution while it is being rolled, and the wrapper a is reinforced with one or more narrower strips a<1>. a<2> of sail cloth, cotton duck, &c. When the roll has been wrapped, the edges and ends of the wrapper are sewn up with string. The central portion of the felt is thus protected from unequal and unduly severe action of the hammers.
Patent GB-290434-A (GB)
Title: Improvements appertaining to doffing mechanism for flyer spinning, doubling, twisting and like machines
IPC: D01H9/04
Filed: 1927-05-02
Abstract: 290,434. Fairbairn, Lawson, Combe, Barbour, Ltd., and Moorhouse, S. May 2, 1927. Doffing-arrangements.-A shaft a, rotatable by hand, is provided with cylindrical projections or studs f with flattened ends f<1> adapted to be brought into the position shown to arrest the flyers c of spinning, doubling, twisting, and like machines, thereby facilitating the wiping of the yarn from the spindles during the doffing operations in the manner described in Specification 275,769.
Patent GB-351625-A (GB)
Title: Improvements in furnaces for supplying heating and drying gases
IPC: B22C9/12
Filed: 1930-04-14
Abstract: 351,625. Mould-heating and like furnaces. CHATWIN, J., 253, Gray's Inn Road, London.-(Schmitz & Co. Ges., Dr. ; 60, Kreuzstrasse, Wichl, Barmen, Germany.) April 14, 1930, No. 11764. [Class 51 (ii).] A furnace for supplying hot gases for drying moulds, heating ladles or drying chambers, &c., comprises a casing c having an inner cylinder d suspended therein containing the fuel to which air is supplied through the annular passage e, and a nozzle s in the form of a bonnet mounted over an opening g at the bottom of the furnace and supplied with compressed air which induces a flow of air through the furnace, the mixed air and combustion products issuing to the mould &c. through the opening g. The fuel is fed through a flap k to the shaft d which depends from the roof i of the furnace and air for combustion passes through an adjustable opening in the fuel-feeding flap and through openings n in the upper part of the shaft d to the annular space e between the shaft and the casing c, issuing to the fuel through the annulus b. Combustion takes place downwardly and the ashes are periodically removed through an ash door t.
Patent GB-118097-A (GB)
IPC: C01B17/54
Abstract: 118,097. Pratt Engineering & Machine Co., (Assignees of Hurt, G. F.). July 14, 1917, [Convention date]. Sulphur dioxide.-A method of burning sulphur consists in maintaining in a chamber a pool of molten sulphur, and in considerably increasing the surface area exposed to the combustion air, e.g. by spraying the sulphur in fountain-like jets by means of air blasts delivered into the pool. The air supply in the vicinity of the pool is restricted to the amount necessary for volatilizing the sulphur at the desired rate, and the oxidation is completed in a series of combustion chambers. A suitable apparatus comprises a series of chambers 20, 22, 25, 27, 30 separated by baffle-walls, and arranged to provide a zigzag course for the gases. The raw sulphur is fed to the chamber 20 from a hopper 66 at such a rate that the desired depth of molten material is maintained in the pool 40, and the spraying-blast is delivered through one or more nozzles 45 carried by pipes 47 in communication with a pump 56 through a reservoir 57 and heating-pipes 58. The rear wall of the chamber 20 is inclined or stepped to allow any particles of the spray, which are not volatilized or burnt, to return to the pool. Each pipe 47 is carried by a plate 48, removably held in position by turn-buckles 50 engaging wedge surfaces on the plate, and the connexion to the supply-pipe is made by an extension 52. A regulable quantity of air may be supplied through openings 61 in the plate controlled by dampers 62. The feed of sulphur is controlled by a rotating pocketted roller in co-operation with a slide 74. the distance of the lower edge of which from the periphery ci the roller may be varied by means of packing-pieces 75. An inspection opening 39 is provided in the chamber 20, and air-supply openings 33 controlled by dampers 34 in the chambers 22, 25. In the chamber 30 the gases pass over a nitre pot 31 before delivery to the sulphuric acid plant. The burning operation can be effectively controlled by varying the blast through the nozzles 45, the air supply, and the rate of feed of the sulphur.
Patent GB-586875-A (GB)
Title: Dry shavers
IPC: B26B19/12
Filed: 1944-06-21
Abstract: 586,875. Dry shavers. BELZ, A. June 21, 1944, No. 11823. Convention date, June 4, 1943. [Class 131] A dry shaver has several reciprocating cutting blades characterized in that the resilient upper cutting blades 1 which are stretched over lower guard members 4 lie on an imaginary spherical surface. As shown in Fig. 2 three cutting blades 1 with toothed edges 7 are provided which are curved in the direction of oscillation and flat in the transverse direction and are held in close contact with the toothed guard members 4 fixed to the shearing head 5 by the engagement of the resilient arms 6 of the rocking stirrup 2 with the slits 3. Two of the cutting blades are placed symmetrically to the third.one. In the Specification as open to inspection under Sect. 91 several arrangements are described in which the cutting blades are not disposed on an imaginary spherical surface. Fig. 4 (Cancelled) shows an arrangement of blades 1 which are individually longitudinally curved but transversely are arranged in three staggered tiers while in a further modification, the blades are also in three tiers which are not staggered the blades decreasing in width from the lowest to the topmost. This subject-matter does not appear in the Specification as accepted.