baber/WOPTO huggingface dataset:
Patent GB-623651-A (GB)
Title: Improvements in devices for increasing the efficiency of sand-blast guns
IPC: B24C5/04
Filed: 1946-10-14
Abstract: 623,651. Sand-blast. MOREL, S. Dec. 14, 1946, No. 36941. Convention date, Jan. 7. [Class 60] [Also in Group XXVIII] A sand-blasting process comprises producmg a stream of compressed air, suspending in said stream the maximum amount of abrasive particles compatible with a predetermined rate of flow of the compressed air and causing the stream of compressed air and abrasive particles in suspension therein to suck a further amount of abrasive particles immediately ahead of the point where the stream is discharged in the open-air. Apparatus comprises a frusto-conical body 1 to which is fixed by a nut 2 an outlet nozzle 3 the rear end 12 of the inner wall of which merges with inner wall of the body 1. The body 1 has a screwed rear plate 4 having a boss 5 in which is screwed a nozzle holder 7, fixed by a screw 8, carrying a nozzle neck 9 maintained in position by an injector tube 10, fixed by screws 11. The outlet end of the tube 10 is adjacent the flared inlet end of the discharge nozzle 3, the internal diameter of which is larger than the internal diameter of the tube 10. The boss 5 is connected by a sleeve 13 to a tube 14 on which is fixed a flexible pipe 15 through which is supplied compressed air laden with abrasive. Additional abrasive is drawn into the body 1 through tubes 16 connected by flexible pipes with the supply of abrasive. In a modification, the injector tube 10 is constituted by the outlet nozzle of a blast gun which may be of the kind in which abrasive and compressed air are supplied separately to the gun.
Patent GB-319549-A (GB)
Title: Improvements in disc wheels for railway rolling stock and the like
IPC: B60B17/00
Filed: 1928-12-14
Abstract: 319,549. Leonard, N. Dec. 14,1928. Disc wheels.-In a cast wheel for railway &c. vehicles, the rim 1, on which the tyre 12 is pressed or shrunk, is connected to the disc body 2 by converging walls 9<1>, 9<2>. As shown, the wall 9<2> at the flange side of the wheel may be formed thicker than the wall 9'.
Patent GB-1007202-A (GB)
Title: Improved retainer for door furniture
Inventor: GARDNER FRANK ALFRED DINSDALE
IPC: E05B1/00
Filed: 1963-09-20
Abstract: 1,007,202. Door handles. ADRIAN STOKES Ltd. Sept. 21, 1964 [Sept. 20, 1963], No. 37044/63. Heading A4U. A door handle 3 is fixed by means of a female dovetail member 5 secured to it by a screw 6 and engageable with a male dovetail 10 secured to a door 1 and a handle 2 by a screw 11 passing through the door and a spacer 12 and threadedly received in a sleeve 13 the heads of screws 6, 11 being concealed when the handle 3 is placed in position by engaging the members 5, 10. An additional screw 15 may be inserted to prevent inadvertent removal of handle 3.
Patent GB-1128800-A (GB)
Title: Method and apparatus for packaging material in a protective atmosphere
IPC: B65B31/02
Filed: 1967-08-14
Abstract: 1,128,800. Packaging machines. ANDERSON BROS. MFG. CO. 14 Aug., 1967 [23 Nov., 1966], No. 37302/67. Heading B8C. A method of packaging material in a protective atmosphere comprises forming and filling an open-topped flanged container, positioning a cover member over it, placing the container and cover in a vacuum enclosure and reducing the pressure, introducing a protective gas into the container through an opening formed in either the cover or container flange, so that the gas separates the two in order to pass into the container, sealing the container and removing it from the enclosure. A separate inner cover may be provided. Each container is formed by heating a web of thermoplastic material 11 and moulding it by mechanical or fluid pressure. The mould moves down to allow the web to be moved on by grippers 16 on piston 17 (also Fig. 2, not shown). A punch 32 then forms an opening 30 in the part of the web between two containers. This may alternatively be done at the same time as the moulding process. The container is then filled. If it is desired to apply an inner insert lid I to the package the containers are formed with a double flange 28, 29 and the inserts I formed in a similar way to the containers from a web 41. The inserts are cut from the web and placed into the containers to rest on flange 28, by a reciprocating gripper 46. A further web 61 is fed over the containers to act as a cover. The assembly is moved into the vacuum enclosure X where air is withdrawn through passage 87 via valve 86. A protective gas is introduced via conduit 95 and opening 30, stretching the cover 61 upwards and flowing directly into the container so that it mixes with the remaining air in the container and carries it out into the enclosure. The insert I is formed with a channel 59 adjacent the opening 30 to facilitate this. The channel may alternatively be formed in the container (not shown). The cover is sealed on to the container flange by a sealing head 83 using, e.g. heat- or pressure-sensitive or high-frequency sealing. The pressure in the package is approx. atmospheric. The packages are cut from the web at 64. A peeling tab may be provided.
Patent GB-972179-A (GB)
Title: Improvements in and relating to vapour generators
Inventor: HEATHCOTE JOHN
IPC: F22B1/08
Filed: 1962-10-03
Abstract: 972,179. Verticalsteam boilers. FOSTER WHEELER Ltd. Oct. 3, 1963 [Oct. 3, 1962], No. 37467/62. Heading F4A. A vertical steam boiler comprises a vertical cylindrical shell 10 containing a shroud 22 open at the bottom and closed at its upper end 4 within which heating tubes 12 shown straight but which may follow a helical or other shaped downward path are mounted in clusters 27 between inlet and outlet' manifolds 28 29 connected by pipes 30, 31 to inlet and outlet headers 32, 33. Water to be evaporated is supplied through inlet 14 and feed ring 15 and passes down through the annular downcomer 24 formed between the shell and the shroud and upwards in contact with the heating tubes 12, forming a steam and water mixture which passes up within the shroud, which is restricted immediately above the tube headers before expanding to house a ring of centrifugal separators 25 which return water to the downcomer and pass steam out through the stop of the shell at 16 via driers 26.To allow differential expansion between the tubes 12 and the shell and to reduce leakage problems heating fluid, e.g. steam or another vapour or gas, is supplied through inlets 18 above the shroud to pipes 36 arranged to form expansion loops and which pass downwardly through the top of the shroud near the axis of the shell to inlet headers 32, the heating fluid leaving from the outlet headers through pipes 34 and outlets 20 which pass directly through the shell.
Patent GB-906319-A (GB)
Title: 3,4,5-tri (lower) alkoxycinnamamides and process for preparation
IPC: C07C233/12
Filed: 1960-11-01
Abstract: The invention comprises compounds of the formula <FORM:0906319/IV (b)/1> (wherein R is lower alkoxy, R1 is hydrogen or lower akyl, R2 and R3 are the same or different and are hydrogen, lower alkyl, lower alkoxyalkyl, lower alkenyl, lower cycloalkyl, phenyl, m-(lower alkyl)-phenyl or m-(lower alkoxy)-phenyl, or R2 and R3 together with the adjacent nitrogen atom are pyrrolidino, piperidino, morpholino, 2:6 - dimethyl - morpholino or 1:2:5:6-tetrahydropyridino, the word lower referring to radicals containing at most 6 carbon atoms) and their preparation by reacting the appropriately substituted cinnamic acid esters, halides or anhydrides with the appropriate amines. Examples are given.  3,4,5-Trialkoxycinnamoyl halides are prepared from the acids and phosphorus trihalides, oxyhalides or pentahalides or sulphuryl or thionyl halides.  The corresponding anhydrides are prepared from the acids and the acid halides.
Patent GB-1022687-A (GB)
Title: Conversion of hydrocarbons with acid-activated mordenite
IPC: C07C4/00
Filed: 1962-10-04
Abstract: A catalyst consisting of acid-activated mordenite of which at least 50% is in the H form, is used in the following reactions:-  (a) hydrocarbon cracking, e.g. of n-hexane to give isobutane, isopentane and isohexane at 225-250 DEG  C., and olefins, toluene and benzene at 410 DEG  C; or of n-heptane at above 180 DEG  C.;  (b) isomerizing cycloparaffins e.g. cyclohexane to methyl cyclopentane at 270 DEG C.; methyl cyclohexane to dimethyl-cyclopentanes;  (c) converting benzene to alkyl benzenes, e.g. toluene, ethyl benzene, at 375-525 DEG  C.;  (d) alkylating benzene, e.g. with ethylene at above 100 DEG C. to give ethyl and diethyl benzenes, o-xylene, cumene and toluene; or with propylene at 78 DEG  C. to give cumene;  (e) disproportionation of toluene at 300 DEG  C. to give xylenes and benzene;  (f) cracking n-heptane in the presence of benzene at above 150 DEG  C. to give alkyl benzenes in addition to cracked products; (g) reforming hydrocarbon mixtures or aromatizing hexane at above 200 DEG  C.ALSO:Ethylene is polymerized at 200 DEG  C. over a catalyst consisting of acid activated mordenite of which at least 50% is in the H form.ALSO:Acid activated mordenite of which at least 50% is in the H form, having a surface area of at least 300 m.2/gm., is prepared by treating finely-divided naturally occurring mordenite, e.g. 200 U.S. mesh, with washes of mineral acid, e.g. 0.1 N HCl, followed by washes of stronger mineral acid, e.g. 1.2 N HCl, rinsing until acid-free, and drying.  Ions of alkaline earth metals, e.g. Ca, or a trivalent metal, e.g. Ce, La or Fe, may be introduced by ion-exchange.  The treated mordenite is used as a catalyst for hydrocarbon cracking, reforming, alkylation, disproportionation and polymerization.  It may be regenerated with air at 300-600 DEG C.ALSO:A catalyst consists of acid activated mordenite of which at least 50% is in the H form, having a surface area of at least 300 m.2/gm.  It is prepared by treating finely divided naturally occurring mordenite e.g. -200 U.S. mesh, with washes of mineral acid, e.g. 0,1 NHCl, followed by washes of stronger mineral acid, e.g. 1,2 NHCl, rinsing until acid-free, and drying ions of alkaline earth metals e.g. Ca, or a trivalent metal e.g. Ce, La, or Fe, may be introduced by ion exchange.  The catalyst may be regenerated with air at 300-600  DEG C.
Patent GB-314753-A (GB)
Title: Improvements in devices for feeding and delivering sheets in platen printing machines
IPC: B41F1/28
Filed: 1928-12-20
Abstract: 314,753. Gl÷ckner, P. Dec. 20, 1928. Platen machines. - Sheets are fed to platen presses from a feed table d, Fig. 1, by means of suction nozzles m on a tube supported by a roller l which moves over a pivoted track i supported by an adjustable guide k on the platen b. Tho nozzles are moved by a link o and lever so as to carry the unprinted sheets over the platen as it moves to its open position, and prior to this the printed sheet is delivered to a delivery table arranged above the table d on the same frame a by means of similar suction nozzles u, Fig. 6, carried by a roller v moving on a pivoted track q supported by an adjustable guide v on the platen b, and controlled also by a lever s and link s<1> so as to raise the delivery nozzles out of the way of the feed nozzles, and into the plane of the higher level delivery table. The track i is pivoted to a bracket h pivoted to the frame a, and controlled by a spring and a movable abutment.
Patent GB-1478557-A (GB)
Title: Forging machine
IPC: B21J13/02
Filed: 1975-09-16
Abstract: 1478557 Forging GFM GES FUR FERTIGUNGSTECHNIK UND MASCHINENBAU AG 16 Sept 1975 [9 Oct 1974] 37963/75 Heading B3H Forging apparatus comprises two tool carriers 2 guided in a housing 1 and having opposed forging tools 3, each tool having at least two working profiles 4 and being movably mounted on the carrier and being lockable thereon by a rotary key in a number of working positions each locating a respective working profile on the carrier axis. In Fig. 1, each die is mounted on a base 5 slidable on rail 6 on the carrier 2 between end positions defined by abutment of the base on faces 8 of the rail. The rail is lockable in either position by rotation of a key 7 by hydraulic drive 10 acting by apertured member 16 on arm 9. Drive 10 is supported on the housing 1, and its lower cylinder is extended to rotate the locking member 7 to the release position, and both cylinders are extended to rotate the locking member to the position for locking the base in its lowermost position. The base is raised or allowed to descend by a roller 17 on bell-crank 19, 21 pivoted to the housing at 20 and operated by a two stage hydraulic drive having piston and cylinder devices 23, 25 and 24, 27 to engage the roller with the base and to move the base 5 between its operative positions. The locking member 7 is journalled in rail 6, and has cams 30, Fig. 6, near its journals operating on plungers 31 having collars 32 confining springs 33, whereby in the locking positions as shown, the plungers bear on the cams and the springs press the rail 6 and base 5 together, but in the release position the collars 32 seat on the base 5 and the plungers 31 are spaced from the cams 30, removing the spring pressure to permit sliding of the base. In another embodiment, each tool has three working profiles, the hydraulic drive for the base has three stages, and two rotary locking members 7 are provided, each having a locking and a release position, such that the base can be locked in any of its working positions without the assistance of an end stop.
Patent GB-1451019-A (GB)
Title: Dual vibrato system
IPC: G10H1/043
Filed: 1974-09-02
Abstract: 1451019 Electrophonic musical instument MOTOROLA Inc 2 Sept 1974 [4 Sept 1973] 38296/74 Heading G5J Two substantially similar oscillators 50, 70 are connected through a resistor 90 which synchronises the second to a multiple of the first frequency which is a sub-audio vibrato frequency, e.g. 6Hz. The combining circuit 100 comprising resistors 92, 94, 96 combines the signals to produce a low frequency, non- sinusoidal vibrato signal which is applied to the bases of transistors 16, 18 in the master oscillator 10, thereby periodically varying the capacitance of these transistors and modulating the master frequency. The position of the switch 40 in oscillator 10 determines whether the master frequency is to be governed by the crystal 38 (switch as shown) or by the capacitor 32. Each pair of transistors 12, 14 &c. may be replaced by a single transistor or the system may be fabricated using an integrated circuit having four dual input gates.
Patent GB-954256-A (GB)
Title: Process for the separation of mixtures of isomers of tri-methyl adipic acid
IPC: C07C51/43
Filed: 1961-10-26
Abstract: a , a , g  or a , g , g  isomers of trimethyladipic acid are separated from mixtures thereof by dissolving in nitric acid of at least 50% concentration, and separating a , a , y-trimethyl adipic acid by crytallisation.  The crystallisation may be at from -5 DEG C. to 30 DEG C., and the y, a , a -acid may be crystallised from the mother liquor by further cooling,-20 DEG C. to 5 DEG C., or extracted by an organic solvent such as a hydrocarbon e.g. cyclohexane or cumene, or halogenated hydrocarbon e.g. carbontetrachloride.  The mixture of isomers may be derived from the oxidation of dihydroisophorone or dihydroisophorol by nitric acid. Specification 915,510 is referred to.
Patent GB-1427943-A (GB)
Title: Welding of copper and iron
IPC: B23K9/23
Filed: 1973-08-14
Abstract: 1427943 Welding by fusion or copper and iron HITACHI Ltd 14 Aug 1973 [30 Aug 1972] 38473/73 Heading B3R In a method of welding together copper or a copper base alloy containing at least 90% by weight of copper, and iron or an iron base alloy containing at least 50% by weight of iron, the welding is performed without the use of flux and the condition of the molten metal formed can be observed directly (for example electron or laser beam welding, TIG MIG welding and plasma welding but not electroslag or submerged arc welding) and is characterized in that two additives are interposed between the materials to be welded together, e.g. in the form of foils, the first additive being capable of forming an oxide having a higher melting point than iron and being added in an amount effective to refine the grain structure of the resulting weld metal, e.g. the additive is one of the following: Ti, Al, Ta, Nb and Zr, and the second additive being capable of forming a solid solution with copper and iron and being added in an amount effective to enhance the mutual miscibility of copper and iron, so as to inhibit segregation in the crystal structure of the resulting weld metal, e.g. the additive is one of the following: Ni, Ag, Pd, and Pt. The total mount of the two additives is in the range of 1 to 25% by weight of the weld metal and, preferably, the proportion of the first additive is 0À8 to 8% and the proportion of the second additive is 0À2 to 17% by weight of the weld metal. The Specification describes the welding condition and composition of components used in a number of exemplary experiments.
Patent GB-1365381-A (GB)
Title: Methods for a determining the electrical resistivity of the subsoil and for apparatus therefor
IPC: G01V3/12
Filed: 1971-08-17
Abstract: 1365381 Prospecting COMPAGNIE D'APPLICATIONS ET DE DIFFUSION DE TECHNIQUES NOUVELLES SarL 17 Aug 1971 [5 Oct 1970] 38498/71 Heading G1N The method of measuring sub-soil resistivity by transmitting an electromagnetic wave from a remote point to the point at which the sub-soil resistivity is to be determined, is characterized in that the received signal 1, Fig. 1 after amplification 2 and filtering 4 is multiplied 6 by a  reference signal 8 of the same frequency as the transmitted signal and the phase of the reference signal is adjusted to maximize the output of the multiplier which is passed to a measuring circuit. The reference signal generator can be linked to the transmitter at the remote point, but if the distance is too great it is adequate to control both the transmitter and the reference signal generator by matched crystal oscillators. The received signal may be recorded on magnetic tape before being replayed (possibly at a higher speed) to the processing circuit.
Patent GB-1111939-A (GB)
Title: Improved process for preparing methacrylonitrile and acrylonitrile
IPC: B01J27/19
Filed: 1966-08-30
Abstract: Acrylonitrile or methacrylonitrile are produced by passing propylene or isobutylene, ammonia and an oxygen-containing gas over a catalyst, a molar ratio of 1.5 to 4 mols of oxygen per mol of propylene or isobutylene and of 0.5 to 1.75 mols of ammonia per mol of propylene or isobutylene being employed, the catalyst comprising a mixture of manganese molybdate, telurium oxide and a manganese phosphate in a molar ratio of 100 MnMoO4, 10-100 TeO2 and 5-50 of a manganese phosphate.  The reaction is suitably effected at 350-500 DEG  C., preferably in the presence of 0-7 mols of steam per mol of propylene or isobutylene, employing a contact time of 2 to 70 seconds, and an inert diluent gas may be present.  The catalyst, which may be carried on a conventional support, may be prepared by dry-bleeding the ingredients or by mixing aqueous solutions of the individual components followed by drying and baking.
Patent GB-800564-A (GB)
Title: Improvements in and relating to threshing machines
IPC: A01F12/30
Filed: 1956-12-20
Abstract: 800,564. Threshing machines. MASCHINENFABRIK FAHR AKT.-GES. Dec. 20, 1956 [Dec. 31, 1955], No. 38811/56. Addition for 730,913. Class 6(3). [Also in Group XXXII]. The threshing machine described in the parent Specification is modified by providing within the hollow-driving shaft 9, a resilient balancing device opposing the forces set up by oscillation. The device comprises a torsionbar 18 having squared ends 19 which are secured to squared ends 16 of the shaft-journals 14 by internally-squared sleeves 17. An internally squared bush 20, secured to the centre of the driving shaft 9, fits over a squared portion of the torsion-bar which may be divided into two identical aligned portions at this point. The bar or bars may be pre-stressed by rotating the cover plates 15 which are integral with the stub-axles 14. Springs may replace the torsion-bars. The driving shaft drives the shakers 2 and sieves 10 through levers 4, 11 and is itself driven from a crank through the arm 8.
Patent GB-838996-A (GB)
Title: Production of copolymers from olefinically-unsaturated monomers
IPC: C08F297/06
Filed: 1956-12-20
Abstract: Copolymers of olefinically-unsaturated hydrocarbon monomers are prepared by (a) fully polymerizing one of the monomers in an inert solvent with a catalyst made by reacting an alkyl aluminium compound with a tetravalent titanium compound and (b) mixing the other monomer with this solution and continuing the polymerization.  When one of the monomers contains halogen it is introduced at stage (b).  The first stage is carried to essentially complete conversion or unreacted monomer is removed before addition of the other monomer.  A third monomer may be added in a third stage.  Specified monomers include ethylene, propylene, 1-butene, isobutyline, butadiene, isoprene, piperylene, 2,3-dimethyl - butadiene, 2 - ethyl - butadiene, 4-methyl - peritadiene, 2 - methyl - pentadiene, hexadiene, thexatriene, 4 - methyl - hexadiene, 2 - methylhexadiene, 2,4 - dimethylpentadine, 2 - isopropyl - butadiene, 1,1,3 - trimethylbutadiene, octatriene, 2 - amylbutadiene, 1,1-dimethyl - 3 - t - butyl - butadiene, 2 - neopentylbutadiene, styrene vinylnaphthalene, myrcene, allocimine, cyclopentadiene, cyclohexadiene, cycloheptadiene, dimethylfulvene, phenyl-butadiene, diphenylbutadiene or fulvene, allene, diallyl, dimethallyl, propyl allene, squalene, 4 - vinyl - cyclohexene, divinyl benzene, 1 - bromo - propene, 1 - 2 - dichloropropene, allyl chloride, methyllyl chloride, chloroprene, chlorocyclohexanes, halostyrenes, and others. Specified solvents are hydrocarbons, e.g. butane and higher cycloalkanes and aromatic hydrocarbons.  Titanium tetrahalides and trialkyl aluminium are the preferred catalysts.  Examples are given of the polymerization of (1) (a) isoprene, with (b) butene-1, octene-1, styrene, allyl chloride, methallyl chloride or chloroprene; (2) (a) butadiene with (b) styrene or allyl chloride; (3) (a) cyclohexene with (b) butadiene; (4) (a) pentene-1, with (b) allyl chloride,, allyl bromide or methallyl chloride; (5) (a) hexene-1 with (b) allyl chloride, methallyl chloride or chloroprene; and 6 (a) isoprene, butadiene, pentene-1 or styrene, with (b) p-chlorostyrene.
Patent GB-1445706-A (GB)
Title: Control arrangement for a gas turbine engine
IPC: F02C9/28
Filed: 1973-08-16
Abstract: 1445706 Gas turbine engine control systems MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 16 Aug 1973 [23 Aug 1972] 38868/73 Heading F1G The invention relates to a control system for a gas turbine engine of the kind having a separate power turbine, the system comprising a speed-responsive governor 4 to which a signal representing a specified speed (N 1 /#T E1 ) spec of the compressor-turbine shaft is supplied, that signal being compared with a signal representing a function of the actual speed (N 1 /#T E1 ) act of the compressor-turbine shaft, the resulting signal acting to vary the fuel flow to the combustion equipment. A temperature-responsive governor 13 is supplied with a signal which represents a function of a specified temperature TE4 spec of the gas generator turbine, that signal being compared with a signal which represents a function of the actual value of the temperature TE4 act, the resulting signal acting to vary the gas flow through the engine, there being means for varying the respective input and output signals of the speedresponsive and the temperature-responsive governors each as a function of a characteristic of the gas turbine engine. This characteristic of the engine may be speed of the gas generator shaft N 1  ; speed of the power turbine rotor N 2 ; temperature of the air at the air intake T E1  ; temperature of the gas at the inlet of the gas generator turbine T E3 ; tempera ture at the outlet of the gas generator turbine T E4 ; or temperature at the outlet of the power turbine T E6 . The gas flow through the engine may be varied by variable inlet guide vanes to the power turbine.