baber/WOPTO huggingface dataset:
Patent GB-922374-A (GB)
Title: Production of alcohols
Inventor: KUTEPOW NIKOLAUS VON
Filed: 1961-03-07
Abstract: Catalysts used for the reaction between olefines, carbon monoxide and water to produce alcohols comprise an iron carbonyl, preferably iron pentacarbonyl, an amine, preferably a tertiary amine such as N-n-butylpyrrolidine, water and an optionally substituted ether, thioether, nitrile, lactam, carboxylic acid amide, a compound containing a sulphoxide group or two or more of such compounds.  The additives are preferably present in an amount of 1-20% by weight based on the total weight of the three components forming the catalyst.ALSO:Alcohols having 3-7 carbon atoms are obtained from olefines having 2-6 carbon atoms, carbon monoxide and water at a temperature of 60-130 DEG C. in the presence of a complex catalyst consisting of iron carbonyl, an amine and water and an optionally substituted ether, thioether, nitrile, lactam, carboxylic acid amide, a compound containing a sulphoxide group or two or more of such compounds.  The amine is preferably a tertiary one, e.g. N-n-butyl pyrrolidine.  Among suitable additives specified are those of formula R1XR2, in which X is oxygen or sulphur and R1 and R2 are aliphatic, cycloaliphatic, araliphatic or aromatic radicals containing 1-12 carbon atoms substituted, for example, by esterified carboxylic groups, etherified hydroxy groups, esterified hydroxy groups, carboxylic groups, hydroxy groups and nitrile groups, and compounds of formula R3COYR4, in which Y is oxygen or a group NR5 in which R5 is hydrogen, an aliphatic, cycloaliphatic, araliphatic or aromatic radical both hetero atoms being members of a heterocyclic ring having 5-13 atoms as ring members and R3 and R4 together represent a polymethylene radical with 3-11 carbon atoms which together with -CO-Y- form a heterocyclic ring having 5-13 ring members. Suitable compounds of formula R3COYR4 are, for example, pyrrolidone, caprolactam, caprylic lactam, lauric lactam, N-methylpyrrolidone, and N-butylcaprolactam.  Other suitable additives are N-mono- and N-disubstituted carbonamides, e.g. dimethyl and diethyl formamide, N.N-dimethyl acetamide, N.N-diethylbutyramide and benzoic and dimethyl amide.  The additives are usually present in an amount of 1-20% by weight based on the total of the three components forming the catalyst and may be added during or after the formation of the catalyst. In the examples propylene is reacted with carbon monoxide and water in the presence of a catalyst comprising iron pentacarbonyl, N-butyl pyrrolidine and various additives as specified above to give a mixture of butanols.  Specification 704,136 is referred to.
Patent GB-609566-A (GB)
Title: Improvements in rotary drying cylinders
IPC: A23C1/03
Filed: 1946-03-16
Abstract: 609,566. Drying paper &c. SPOONER, W. W. March 16, 1946, No. 8214. [Class 96] [Also in Group XIII] Steam &c. is driven against the internal surface of a rotary drying cylinder 1, by fans or impellers 9 on a shaft 8, which is preferably eccentric. When the cylinder is in tandem with a stentor or the like, thereby acting as a pre-dryer for a paper web means may be provided to interrupt the drive to the fans and cylinder when the stentor is stopped, thus preventing overdrying of the web of paper, and thereby allowing lateral stretching of the web when the stentor is restarted.
Patent GB-416677-A (GB)
Title: Improvements in or relating to low temperature carbonisation retort ovens
IPC: C10B1/04
Filed: 1933-03-20
Abstract: 416,677. Retort furnaces. COMPAGNIE GENERALE DE DISTILLATION ET COKEFACTION A BASSE TEMPERATURE ET MINIERE (INTERTRUST) SOC. ANON., 1, Poststrasse, Glaris, Switzerland.- (Assignees of International Holding de Distillation et Cokefaction a Basse Temperature et Miniere (Holcobami) Soc. Anon.; 8, Rue de la Regence, Brussels.) March 20, 1933, No. 8420. Convention date, March 21, 1932. Addition to 308,760, [Class 51 (ii)]. [Class 51 (ii).] In a retort furnace of the kind described in the parent Specification, in which a number of settings are fired in succession after the manner of a continuous kiln, part of the spent combustion products from the settings in which preheating is being effected are passed to the settings in which the charge is cooling, and thence to the setting under fire to reduce the temperature of the fresh combustion products. In the plant shown comprising six settings 1, 1<a>-1<e> each with twenty vertical retorts 2, superposed flues 5, 6 are arranged between the settings, the upper 5 of which communicates with the lower part of the two combustion chambers 3, 4 of one adjacent setting while the lower 9 communicates through ports 14 with the lower end of the other adjacent setting. The flues 5, 9 can be connected through ports controlled by dampers 8, and can also be put into communication respectively with external flues 7, 11 which are connected together through a fan 12. Assuming that the settings 1, 1<a> are cooling, 1<b> is under fire, and 1<c>, 1<d> and 1<e> are preheating, the dampers 8 between all the flues 5 and 9 will be open except those between the settings 1<e> and 1, and the spent gases from the closed flue 9 will be drawn by the fan 12 through the flue 11, and part will be passed to exhaust through the recuperator 15, while the remainder will be delivered through the flue 7 to the flue 5 of the setting 1. The gases will then pass in succession through the cooling settings 1, 1<a>, to the setting 1<b> under fire, where they will mix with fresh combustion gases from burners 18, and through the settings 1<c> &c. for the cycle to be repeated. Combustion of the fresh gases is effected in open-topped enclosures 19 so that the flames are sheltered from the stream of spent gases. Charging and discharging.-Fuel is fed to the retorts from a travelling hopper 34 with telescopic shoots 36, and the feed and discharge doors 20, 21 are interconnected by levers and links for simultaneous operation by a crank disc 22. After the opening of the doors the inner tubes 2<a> of the retorts are allowed to fall against stops 28 to loosen the coke which drops into the shoot 30. The tubes are raised into the retorts by crank discs 33.
Patent GB-1012391-A (GB)
Title: Photographic method and apparatus
IPC: G03B17/50
Filed: 1964-02-28
Abstract: 1,012,391. Drying photographic film. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Feb. 28, 1964 [March 8, 1963], No. 8441/64. Heading G2A. [Also in Division F4] Wet photographic film is dried by covering the surface with a web of inert porous material, and then applying a powdered chemical drying agent. The latter may be applied to the web directly as a powder, as by sifting, blowing, &c., or it may be dispersed on the surface of a tape which is then brought into contact with the web. The tape may be of paper, or textile, or a plastics material such as polyethylene, and the drying powder may be pressed directly into the surface, or dispersed in an inert adhesive. Several suitable drying agents are mentioned, barium oxide being preferred. The porous web may itself be impregnated with a developer or fixer or monobath solution, being brought into contact with the film for processing thereof. Fig. 1 shows an apparatus comprising an exposure-taking camera section 11 and a processing and drying section 12, which sections may be secured together to act as a single unit. The film 15 is progressed by an intermittent drive from a supply spool 14 to pass through the gate 19 behind lens 21, where an exposure is made. The film then passes through an opening 24 into the rear section 12, where it is wound on to a take-up roll 42. Here there is also wound against it a porous web 53 impregnated with a monobath processing solution, and over that a drying tape 55 as described above, coming from respective supply reels 54, 56. The several layers are pressed into close contact by a spring- loaded roller 47. The multi-layered roll can then be dismounted, and the porous web and drying tape removed, leaving the fully processed and dried film ready for use. In order to close off the front camera section 11 completely if the rear section 12 is to be removed, a racked closure member 39 can be wound down until opening 24 is covered. The lower edge can be sharpened so that it also acts as a knife to sever the film.
Patent GB-375321-A (GB)
Title: Manufacture of azo-dyestuffs on cellulose esters
IPC: C09B35/00
Filed: 1931-03-19
Abstract: Azo dyes, forming on the material; cellulose esters, dyeing; printing.--Yellow to brown shades are obtained on cellulose ester fibres by impregnating them with a diamino-diaryl, -diarylazo -, or -arylaminodiarylazo-compound free from sulphonic, carboxylic, or hydroxy groups, tetrazotizing, and developing with a p-cresotinic acid arylide.  The following components are specified:--as tetrazo components: dianisidine, 2 : 2<1>- or 3 : 3<1>-dichlorbenzidine, 2-nitrobenzidine, 4 : 4<1>-diamino- 2 - methoxy - 2<1> : 5<1> - dimethylazobenzene, 4 : 4<1> - diamino-2-methyl-5-methoxyazobenzene, 4 : 4<1>-diamino-5-methoxy-2-chlorazobenzene, 4 : 4<1>-diamino-2 : 5 : 2<1> - trimethoxyazobenzene, 4 : 4<1> - diamino-2-methyl-5-methoxy - 2<1> - chlorazobenzene, 4 : 4<1>-diamino-2-acetylamino-5-methyl-2<1>-chlorazobenzene, 4 : 4<1> - diamino - 2 - methyl - 5 : 2<1> - dimethoxyazobenzene, 4 : 4<1> - diamino - 2 : 5 - dimethyl-2<1>-chlorazobenzene, 4 : 4<1> - diamino-2 : 5-dimethyl - 3<1> - methoxyazobenzene, 4 : 4<1>-diamino-2 : 5 - dimethoxy - 2<1> - chlorazobenzene, 4-amino-1-(4<1>-aminophenylazo) naphthalene, 4-amino-1-(4<1>-amino-2<1>-methyl-5<1>-methoxyphenyl azo) naphthalene, 4-amino-4<1>-(4<11>-aminophenylamino) 2 - methyl - 5 - methoxyazobenzene, 4-amino-3-ethoxy-1-(4<1>-aminophenylazo) naphthalene; as coupling components the p-cresotinic arylides derived from aniline, 2-toluidine, 4- or 5-methoxy - 2 - toluidine, 1 : 4 - diamino - 2 : 5 - dimethoxybenzene, 2 - anisidine, 4 - chlor - 2 - anisidine, 3 - nitraniline, a  - naphthylamine, dianisidine. p-Cresotinic arylides are prepared by condensing the acid with the appropriate arylamine by means of phosphorus trichloride in presence of a solvent such as toluene.
Patent GB-985085-A (GB)
Title: Device for producing a high direct voltage
IPC: H02M7/10
Filed: 1964-02-28
Abstract: 985,085. Converting. CARL ZEISS-STIFTUNG, [trading as C. ZEISS. [Firm of]]. Feb. 28, 1964 [May 7, 1963], No. 8515/64. Heading H2F. A device for producing a high direct voltage comprises a voltage multiplier, fed by a highfrequency voltage and housed in an oil tank 1 (Fig. 1, not shown), including capacitors 24 and dry rectifiers wherein each multiplier stage includes two rectifiers and each of those rectifiers consists of two rectifier units 12, 13, 14 &c., which are so arranged within a cylindrical insulating housing which also contains the rectifier that in every case the two first rectifier units (e.g. 12 and 13) of each multiplier stage form a V lying obliquely relative to the axis of the cylinder and the last two (e.g. 14 and 15 which is behind 14 in the Figure) lie in a plane perdendicular to the axis of the cylinder and the whole assembly is placed in a cylindrical tube of insulating material (not shown). Connections are made with the aid of soldered metal balls 21 (Fig. 2 and Figs. 3 and 4, not shown). Tracking paths in the supporting members 9, 10 are lengthened by milling circular grooves around the wires to the balls (Fig. 1, not shown). The Specification describes the construction in detail.
Patent GB-642313-A (GB)
Title: An apparatus for plastering
IPC: E04F21/08
Filed: 1947-03-28
Abstract: 642,313. Plastering-apparatus. FOX, J. T. March 28, 1947, No. 8525. Convention date, April 1, 1946. [Class 20(ii)] [Also in Group XXIII] An apparatus for plastering walls and other structures comprises a container 1 for the plaster, a cover 8, hinged or otherwise, clamped thereto in an airtight manner and provided with a compressed air inlet 19; a central tube 4 passing through the top of the cover, with its lower end open and above the container's base, a plate or float loosely fitting round the tube and slidably touching the inner periphery of the container, and a hollow trowel with a slotted levelling face 22 attached to the upper end of the central tube by a flexible tube 16. The plate or float is pressed downwards by compressed air and the plaster thereby forced through the tubes 4, 16 and out through the slots in the trowel face 22. The pressure, which is observed by a gauge 20, is adjusted for the flow of plaster required, and this is controlled by a valve 14 and a thumb lever 25 on the trowel which operates a cone valve inside the handle 18 of the trowel.
Patent GB-919698-A (GB)
Title: Improvements in or relating to infra-red gunsights
IPC: G02B23/12
Filed: 1959-06-01
Abstract: 919,698. Local viewing. ELTRO GES. FUR STRAHLUNGSTECHNIK, m.b.H. June 1, 1959 [June 3, 1958; Nov. 8, 1958], No. 18564/59. Class 40 (3). [Also in Group XXI] Sighting equipment for a portable firearm comprises an infra-red sight 12 in which an image-converter 23 is operated from a miniature high-tension supply 11 fed from a low-voltage supply 15 and carried either by the sight, at 31-32-33, or by a replaceable forearm-part 10 which carries the sight. The supply 15 is from a portable battery carried on the rifleman which feeds, via a switch 14, the high-tension supply 11 and an infra-red searchlight 13 on the sight. An alternative low-voltage source is provided on the part 10 which optionally feeds the high-tension when the searchlight is not in use. The sight consists of collecting lenses 24, 25, a correcting lens 26, the image converter 23 and viewing lenses 27, 28 all in a tube 22. The high-tension system comprises a transistoroscillator in circuit with a resistance and capacitor in parallel and with the primary winding of a transformer. The secondary winding of the transformer feeds a multi-stage cascade of capacitors and transistor-rectifiers which multiply the voltage from 1 kv. to between 8 to 14 kv. depending on the number of stages used. In Fig. 2 the oscillator and transformer are at 31, the capacitors at 32 and the rectifiers at 33.
Patent GB-697191-A (GB)
Title: Improvements in and relating to means for mounting an electron valve in a shield device
IPC: H01J19/66
Filed: 1951-04-12
Abstract: 697,191. Radio receiving apparatus. CINCH MANUFACTURING CORPORATION. April 12, 1951 [Sept. 15, 1950], No. 8583/51. Class 40 (v). A valve shield comprises a tubular member 8, Fig. 1, with one end open to receive the valve and has a resilient spring member 18 therein having two ring portions 16, 17, one 16 of which engages the shield and the other 17 of which engages the valve to hold it in non- rattling relation. As shown, the resilient member is a cylinder with intersecting longitudinal and transverse slits. Spring portions 16, 17 are preferably of non-circular section so as to engage the walls of the can at a plurality of points, Figs. 2, 3, 4 (not shown). The valve is carried in a holder 1 secured to plate 2 by multi-eared mounting member 3 (ears not shown in Fig. 1). The screening can 8 has a flange 11 co-operating with flange members 12 on member 3, the can being rotated into engagement with members 12. In assembly, the valve is inserted into the base end of the can 8 until it is gripped by the spring member and the shield is then rotated to grip members 12, a retaining flange 9 preventing the spring member from moving outside the can. The device may be part of a radio or television installation in automobiles or aircraft.
Patent GB-1467172-A (GB)
Title: Gas transport agents
IPC: C09K23/42
Filed: 1974-02-26
Abstract: 1467172 Perfluorocarbon emulsions CHILDRENS HOSPITAL 26 Feb 1974 [26 Feb 1973] 8696/74 Heading B1V [Also in Division A5] A gas-transfer agent for use (as a substitute for blood) in animals comprises an aqueous emulsion of a perfluorocyclocarbon having a  particle size of up to 100 microns. "Emulsion" includes dispersions of particles of solids. The preferred maximum particle size is 5 microns. Examples include perfluoro (methyl cyclohexane), perfluoro (1, 3-dimethyl cyclohexane), perfluorodecalin, perfluoro (1-methyl decalin) and perfluorodimethyldecalin, and mixtures thereof.
Patent GB-1448775-A (GB)
Title: Circuits for automatic frequency control in carrier wave receivers
IPC: H04N5/50
Filed: 1974-02-27
Abstract: 1448775 Disabling AFC while tuning; transistor amplifiers SIEMENS AG 27 Feb 1974 [29 March 1973] 8766/74 Headings H3Q and H3T  In a circuit arrangement for automatic frequency control in receivers such as radio and television receivers, the tuning voltage 3 is coupled through a capacitor 4 to a rectifier circuit 5, the output 9 of the rectifier circuit 5 is connected to control a switch 2 which superimposes an AFC voltage on the tuning voltage so that the switch 2 is opened during changes in the tuning voltage to disconnect the AFC voltage and a timing circuit 6, 7 keeps the switch 2 open for a time determined by the time constant of the timing circuit. As shown during changes in tuning by switches 57-59 and/or adjustment of potentiometers 54-56 the change in tuning voltage at 3 causes an output from the rectifier circuit 5 to change the timing circuit 6 and open the switch 2. This disables the AFC signal obtained from a discriminator 53 until the timing circuit 6, 7 has discharged. Then the switch 2 closes and the AFC voltage is superimposed in a runner 1 with the tuning voltage so as to provide a source of tuning voltage and fine tuning voltage at 3 which is applied to the high frequency section 51 of the receiver. The circuit also functions so that when the arrangement is first switched on the automatic fine tuning is initially switched off. The rectifier circuit 5 may include a differential amplifier formed by two transistors (11, 12, Fig. 2, not shown). The input 8 is connected to one of these transistors (12). A decrease or increase in output potential of the other transistor (11) in response to an input at 8 causes either a transistor (16 or 17) to conduct to produce decreasing outputs in the same direction (at 44, 38). This causes output transistors (19-21) to conduct to rapidly charge the timing circuit 6, 7 via the output 10 and to open switch 2 by the output at 9. The timing circuit 6, 7 then slowly discharges when the transistors (19 and 21) are turned off to continue conduction of the transistor (20) and the open condition of the switch 2 for time delay of 6, 7. Additional transistors (22, 23) limit the voltage range at the input 8 and transistors (24 and 25) provide voltage stabilization.
Patent GB-699502-A (GB)
Title: Improvements in or relating to paper-making machines
Inventor: HEYS RALPH CHALINOR
IPC: D21F9/04
Filed: 1952-04-07
Abstract: 699,502. Deckles and flow-boxes of papermaking machines. MILLSPAUGH, Ltd. April 7, 1952. No 8789/52. Addition to 681,600. Class 96. A deckle-wall of the kind disclosed in the parent Specification is curved to conform with an arc of a suction breast roll 21 of a papermaking machine. The deckle 37 may form part of or be secured to the side wall 33 of the flow-box 22a at the lower end of which is a doctor 23. The outer surface of the flow-box comprises an upper plate 28 sliding over a lower plate 27, a slotted bracket 32 &c. providing arcuate adjustment, and a screw 34 and nuts 35 providing radial adjustment of the upper plate 28. Rubber-mounted vibrator-arms 24 agitate the pulp.
Patent GB-618673-A (GB)
Title: Felt-like products and processes for producing the same
IPC: D04H1/56
Filed: 1945-04-11
Abstract: 618,673. Batt-forming apparatus. SYLVANIA INDUSTRIAL CORPORATION. April 11, 1945, No. 8950. Convention date, April 14, 1944. [Class 120(i)] [Also in Groups V, VIII and XXIII] Felt products are formed by separately blowing pre-formed potentially adhesive fibres and non-adhesive fibres simultaneously into a confined space to effect mixing thereof, allowing them to settle together in a layer and activating the potentially adhesive fibres (i.e. rendering them tacky) by blowing dry hot air or dry steam through the product. The potentially adhesive fibres may be formed by dispersing a suitably molten or dissolved material through a spray-gun into a chamber 2, Fig. 1, the fibres being conveyed along a duct 5 by a blower 6, into a chamber 4, where they are mixed with non-adhesive fibres introduced through the duct 7. The resul-, tant mixture is sucked on to a perforated band 9 by an exhaust blower 11, and the batt thus formed then passes between rolls 13,14 and is removed for activating. In the form shown in Fig. 2, one type of fibre may be collected on a carding roll 16, removed by a doffer roll 18, and then sucked into a duct 17 leading to a hopper 19, into which the other type of fibres is introduced through a duct 21. A blower 20 then discharges the mixture into the inverted U-shaped duct 22, 23, whence it deposits on a perforated former 24, a suction-pump 25 assisting the action. In Fig. 3, the two types of fibres are introduced into the chamber 4A through ducts 26, 29, and are collected on the perforated band 30, and conveyed between the latter and the band 30A through a chamber in which hot air is introduced through duct 36 and passes through the bath, followed by a chamber in which cold air is used. Rollers 39, 40, may confine or compress the batt. Specification 582,006, [Group VIII], is referred to.
Patent GB-179040-A (GB)
Title: Improvements in display cases for rings and other articles of jewellery
IPC: A47F7/02
Filed: 1921-03-23
Abstract: 179,040. Hayes, A. S. March 23, 1921. Cards for displaying.-A display case for jewellery comprises a pair of plates secured at a fixed distance apart by strips 7 interposed at and between the outer edges of the plates, the upper plate 1 having slots 2 through which the ring or the like may be passed, and the lower plate 3 having slots 4 or a layer of yielding material in which depressions are formed. The slots 4 or the depressions retain and support the rings or like.
Patent GB-195962-A (GB)
Title: Device for the automatic operation of an electric circuit breaker controlled by the pressure of a liquid or gaseous medium
IPC: H01H33/30
Filed: 1923-03-29
Abstract: 195,962. Maschinenfabrik Oerlikon. April 4, 1922, [Convention date]. Fluid-actuated value-3.-The valves for controlling the supply of actuating fluid to a cylinder actuating an electric switch are provided with spring tumbler loading devices and are connected to their operating pistons by lost-motion devices. The switch 1 is kept closed by a piston 3 and is opened by the admission of fluid through a pipe 7 to a diaphragm 8, which acts on a piston 9 against a spring 6. The piston moves a distance H to meet the tappet 11, and then moves the valves 4, 5 a distance h, thereby admitting fluid through the valve 5 to open the switch. On the pressure being reduced, the spring 17 holds the valve 4 closed until the piston on its return stroke has traversed the distance H and encounters the tappet 10. The valve 4 is then lifted and the spring 2 closes the switch. The snap device operates on the dead-centre principle, and comprises a tension spring 12, attached to the pivot 13, and a knee-lever 14, 15, 16 connected at 16 to the piston. By means of it a more rapid reversal of valves 4, 5 is effected.