baber/WOPTO huggingface dataset:
Patent GB-391222-A (GB)
Title: Improvements in electric power cables
IPC: H01B7/02
Filed: 1931-10-23
Abstract: 391,222. Cables. STANDARD TELEPHONES & CABLES, Ltd. and SCOTT, T. R., Connaught House, Aldwych, London. Oct. 23, 1931, No. 29442. [Class 36.] To ensure complete impregnation of the paper insulation of a power cable, the paper is graded with respect to density or porosity from the conductor to the lead sheath, the paper having least density or greatest porosity being disposed adjacent the conductor. In an embodiment described, a cable which may have core, intermediate, and sheath reservoirs of the kind described in Specifications 291,871, [Class 36, Electricity, Conducting &c.], and 340,303, is provided with three layers of insulation, the inner layer being 1.5 units thick and possessing a relative density of 0.9, whilst the intermediate and outer layers are each of 2.0 units thickness and have relative densities of 0.98 and 1.04 respectively. In the impregnation of a cable of this kind, the cable is placed in an impregnating tank which is first evacuated and then slowly filled with hot degasified oil. Pressure is then applied to the oil until a test shows that impregnation has advanced beyond 95 per cent, whereupon a test is next taken at atmospheric pressure and a vacuum is applied until the gas content is again reduced to a negligible value. Pressure is then re-applied and, after testing, the tank is cooled down to about 10‹ C. above atmospheric temperature, whereupon the pressure is released and the oil is cooled under vacuum to about 2‹ C. above atmospheric temperature. The cable is then removed from the tank and rapidly transferred to a lead press for sheathing.
Patent GB-1117474-A (GB)
Title: A method for the preparation of a lipoprotein lipase by cultivating organisms
IPC: C12N9/20
Filed: 1965-07-12
Abstract: A process for the production of microbial lipoprotein lipase comprises cultivating in a conventional culture medium also containing one or more fatty oils a micro-organism selected from the group consisting of pseudomonas fluorescens, pseudomonas schulkilliensis, pseudomonas saccharophilla, pseudomonas aeruginosa, mucor javanicus, mucor mandshuricus, mucor flavus, mucor circinellides, streptomyces aureus, streptomyces parvus, streptomyces sp. G-263-51, streptomyces sp. G-296-115, serratia marcescens, aeromonas hydrophila, bacillus megatherium, bacillus ceres and bacillus subtilis in order to produce a broth culture or a filtered broth containing the microbial lipoprotein lipase; and separating and purifying the lipase, by the steps of subjecting the broth culture to fractional precipitation by the addition of an organic solvent or an inorganic salt; dialyzing an aqueous solution of the precipitate against running water; contacting dialyzed solution with an ion exchange material containing substituted amino groups and eluting the desired material from the ion exchange material.  The culture medium may be solid (e.g. wheat bran) or liquid.  The oil added may be soybean, rapeseed, cotton seed or olive oil.  The precipitant may be ammonium sulphate or acetone.  The ion exchange material may be DEAE-cellulose.
Patent GB-869297-A (GB)
Title: Continuous purification of crude maleic anhydride
Inventor: SHIMOSE RINTA
IPC: C07C51/573
Filed: 1957-09-19
Abstract: Maleic anhydride is purified by a continuous distillation process at a pressure less than 60 mm. Hg in which impurities having a higher vapour pressure than maleic anhydride are removed overhead in vaporous form in a first distillation column, the residue from the bottom of this column is conducted to a second distillation column from the top of which maleic anhydride is distilled in pure form, impurities having a lower vapour pressure than maleic anhydride being removed from the bottom of this second column.  Preferably each column is more than 8m. high and the impurities are taken overhead from the first column below 112 DEG C., and the maleic anhydride from the second below 122 DEG C. Impurities mentioned include benzoquinone, acetic anhydride, benzoic anhydride, dibutyl phthalate, dioctyl phthalate and middle oil of coal tar distillation.  In an example the operating pressure is 20 mm. Hg. and the volatile impurities and maleic anhydride are taken at temperatures of 90 and 98 DEG C. respectively.ALSO:Maleic anhydride is purified by a continuous distillation process at a pressure less than 60 mm.  Hg in which impurities having a higher vapour pressure than maleic anhydride are removed overhead in vaporous form in a first distillation column, the residue from the bottom of this column is conducted to a second distillation column from the top of which maleic anhydride is distilled in pure form, impurities having a lower vapour pressure than maleic anhydride being removed from the bottom of this second column.  Preferably each column is more than 8 m. high and the impurities are taken overhead from the first column at below 112 DEG C., and the maleic anhydride from the second at below 122 DEG C. Impurities mentioned include benzoquinone, acetic anhydride, benzoic anhydride, dibutyl phthalate, dioctyl phthalate and middle oil of coal tar distillation.  In an example the operating pressure is 20 mm.  Hg and the volatile impurities and maleic anhydride are distilled off at temperatures of 90 and 98 DEG C. respectively.
Patent GB-1480683-A (GB)
Title: Vacuumizing apparatus with internal flow control valve
IPC: A22C11/02
Filed: 1975-07-15
Abstract: 1480683 Degassing meat emulsion CHEMETRON CORP 15 July 1975 [9 Oct 1974] 29584/75 Heading B1M [Also in Division F2] In apparatus for degassing meat emulsion under vacuum, Fig. 1, the valve asembly 43 controlling the flow of meat emulsion from hopper 12 via conduit 37 to vacuum chamber 10 is removably positioned in the vacuum chamber so that for cleaning conduit 37 a ball can be sucked through it into the valve and removed therewith, the apparatus also comprising a pumping chamber 15, a check valve 18 and a stuffer 19. The valve assembly 43 may comprise a sleeve 81, Fig. 4 which is  moved inwards by pneumatic cylinders (102, Fig. 5) so that outlet part 84 opens into chamber 14, the extent to which the sleeve moves and hence the effective area of port 84 being adjustable by manipulating screw assembly 111.
Patent GB-1170860-A (GB)
Title: Quinoline-3-Carboxylates
Inventor: PATCHETT ARTHUR ALLAN
IPC: C07D215/56
Filed: 1967-06-27
Abstract: 1,170,860. Anticoccidial compositions. MERCK & CO. Inc. 27 June, 1967 [1 July, 1966], No. 29636/67. Heading A5B. [Also in Division C2] Anti-coccidial compositions comprise as active ingredients a quinoline compound of formula: wherein R 3  is C 1-5  alkyl, R 6  is C 1-5  alkoxy and R 7  is C 1-5  alkyl and optionally amprolum, ethopabate, nicarbazine and/or 2 methyl-3, 5- dinitrobenzamide together with inert diluents and/or carriers. The compositions are administered to poultry as a component of the feed or drinking water.
Patent GB-1276521-A (GB)
Title: Improvements in or relating to a method of and apparatus for detecting the immersion depth of a trawl
Inventor: LAGE JEAN DE SOUZA
IPC: H04B11/00
Filed: 1969-06-11
Abstract: 1276521 Underwater communication J DE SOUZA LAGE and M BRUNEAU 11 June 1969 [12 June 1968] 29694/69 Heading H4U Specification describes a method of determining the depth of a trawl or drag net 2, Fig. 1, and transmitting said determination to a trawler 1, comprising, determining said depth by means of a gauge 6 fixed to the trawl, transmitting said determination in the form of modulations on a V.L.F. (860 c.p.c.) carrier by means of laterally spaced electrodes 4a and 4b and receiving said carrier at the trawler by means of spaced electrodes 9a and 9b. The gauge comprises, Fig. 2, a Bourdon tube pressure transducer 25 causing movement of a pointer 25a by an amount indicative of the depth of the gauge, the Bourdon tube being in direct contact with the water and being protected from the corrosive effects thereof by means of diaphragm 30. The end of pointer 25a, Fig. 3, which is electrically conductive makes contact with a rotating (1-2 r.p.m.) disc 22 (shown in detail in Fig. 4) having an electrically conductive portion 33 thereon and electrically connected to the conducting hub 35. Thus a conductive path will be maintained between pointer 25a and hub 35 for a period proportional to the angular position of pointer 25a and thus the depth of the gauge. The path N of the pointer for a depth of 70 m. is shown. The establishment of said conductive path energizes relay 37 and breaks the supply to the 860 c.p.s. transmitter 20. The transmitter output may thus be said to be pulse width modulated. A pressure sensitive switch 28 allows current to be fed to the transmitter 20 only when the gauge is below a predetermined depth. Recharging means 21a, 21b, 21c, 21d, 21e are provided for the battery 21. The trawler receiver Fig. 7 appears to be an audio amplifier feeding a loud-speaker and/or headphones.
Patent GB-1401669-A (GB)
Title: Methods of testing data transmission modems
IPC: H04L69/40
Filed: 1972-06-26
Abstract: 1401669 Data transmission; methods of testing GENERAL DATA COMM INDUSTRIES Inc 26 June 1972 [1 Nov 1971] 29810/72 Heading H4P A method of testing a data transmission modem from a remote location comprises completing the hand shaking procedure which places the modem in an answer mode after which a test loop is established between digital portions of the modem i.e. the part remote from the line, tests then being applied in this answer mode. The modem is then switched into a test loop in an originating mode, after which the modem is disconnected automatically and normal operation is re-established, all operations being controlled from the remote location. In the embodiment described, F.S.K. is used for communication using a centre frequency f1 for transmission and f2 for reception, tones on both sides of these frequencies indicating mark or space. The disclosure is directed more to switching operations relevant to testing than to application of the testing signals. In normal operation the remote terminal, according to an earlier application, receives signals from a line passing through an amplifier 420, balanced modulator, filter, also a slicer to an output device 411B. When in an originating mode at frequency f2, an oscillator 428 injects a frequency of (f1 + f2) hence filter 424 receives a frequency of the difference i.e. f1. To establish a test loop, a centre frequency is transmitted for a determined period which is detected by 431 and if for a minimum period, say one half second, flip-flop 435 is set, which actuates switch 437 also disables BRK and CCR functions through AND 485. Switching from ANS to ORIG modes is provided by a long MARK detector, e.g. one quarter seconds which sets flip-flop 457 when AND 455 is primed by energy detector 451. The output of flip-flop 457 is applied through inverter 463 and AND 467 to timer 461 which after 6 seconds resets generator 471. This provides a reset signal which after a 2 second delay in 441, through OR 439 resets flip-flop 435. Loss of energy to 451 through inverter 459 resets flipflop 457. This removes input from timer 461 which resets. CLR function is controlled by a long space, e.g. 0À7 seconds detector 481 and through AND 485 primed by an inverted TST signal resets 471 through a delay 489 with similar operation when CLR key (232) Fig. 1 (not shown) is operated.
Patent GB-1534006-A (GB)
Title: Method and apparatus for determining first motion of an acoustic wave in well logging
IPC: G01V1/50
Filed: 1975-11-19
Abstract: 1534006 Well logging SCHLUMBERGER Ltd 19 Nov 1975 [27 May 1975] 29890/78 Divided out of 1534004 Heading G1G The subject-matter of this Specification is identical with that described in Specification 1534004, but the claims are concerned with a method and apparatus for detecting wave arrival times for waves over a given threshold.
Patent GB-954461-A (GB)
Title: Improvements in worm-type pumps
IPC: F04C15/00
Filed: 1962-08-03
Abstract: 954,461. Universal joints; securing together rotary parts. E. NETZSH, [trading as NETZSCH MASCHINENFABRIK, GEB.]. Aug. 3, 1962 [Aug. 3, 1961], No. 30037/62. Heading F2U. A universal joint in a worm-type pump has one element formed as a sleeve g within which the other elements of the joint are mounted and which sleeve is secured to a worm-shaped rotor b of the pump. As shown, a pin d pivotally carried by a driving shaft a engages bearing cups e screwed into the sleeve g. In Fig. 2 (not shown), a rubber element is bonded between a member fast with the driving shaft and a two-part metal drum which is frictionally secured to the sleeve. In both embodiments the sleeve g is screwed on to the rotor b and retained in position by a locking screw h. The joint is closed by a casing i.
Patent GB-717653-A (GB)
Title: Improvements in or relating to the preparation of luminescent halophosphates
IPC: C09K11/73
Filed: 1952-11-27
Abstract: 717,653. Luminescent materials. AUERGES. AKT.-GES Nov. 27, 1952 (Nov. 27, 1951], No. 30065/52. Class 39(1) In a method of preparing a luminescent halophosphate for a discharge lamp a first solution is prepared from 838 grs. of Ca C1 2 .6H 2 O and 17.8 grs. of Mn Cl 2 -2H 2 O in 10 litres of water and a second solution is prepared from 314 grs. of (NH 4 ) 2  HPO 4 , to which has been added an adequate quantity of ammonia for the formation of a tertiary phosphate, and 28 grs. of NH 4 F in 2.5 litres of water. After 30 grs. of finely pulverized Sb 2 O 3  have been added, and mixed with the first solution; the first solution is precipitated in the cold state with the second solution by slow and uniform drop-by-drop introduction for two to three hours while slowly stirring. The precipitated product is allowed to settle and then brought on to a suction filter. The product after having been dried at approximately 100‹C is ground and is heat-treated at a glow-heat of approximately 1180<SP>o</SP>C. When used in a discharge lamp the luminescent material produces a white light having a yellowish tone (3500‹K). If the quantity of Mn Cl 2 .2H 2 O is reduced to 12.5 grs. and the quantity of (NH 4 ) 2  HPO, is reduced to 308 grs. whilst leaving all the other quantities unaltered a luminescent substance is obtained after the glow-heat treatment which produces a white light with a bluish tone (4500‹K).
Patent GB-980914-A (GB)
Title: Improvements in wrapping machines
Inventor: PEARSON FREDERICK HENRY
IPC: B65B11/10
Filed: 1960-09-01
Abstract: 980,914. Wrapping-machines. ROSE BROS. (GAINSBOROUGH) Ltd. Aug. 29, 1961 [Sept. 1, 1960], No. 30101/60. Heading B8C. Articles 49 such as bundles of saw blades are bonded in a machine comprising a conveyer 52 which feeds them into jaws 53 of a second conveyer, each article operating a micro-switch 58 to commence a cycle of operations in which it is carried by the jaws against a wrapper 11 which folds to U-form about it as both pass through a gap 18 to final folding means. Wrappers are fed from a magazine 12 by suction and conveyer means 13, 17 into the path of a pusher 19 which finally positions each one over the gap, Fig. 3. The latter is formed by elements 130, 14 and beneath them is a vertically reciprocating platform 34 against which the wrapper is pressed as the article passes with it through the gap. The platform descends with the article until a folder 64, Fig. 5, turns one upstanding end of the wrapper over its upper surface. A dog 69 on a conveyer 61 then removes the article and wrapper from the jaws 53 to beneath the element 130 which moves to fold over the final wrapper portion, and being heated, seals it in position.
Patent GB-465169-A (GB)
Title: Improvements in or relating to apparatus for converting rotary motion into combined rotary and reciprocating motion, specially applicable for operating pumps and the like
IPC: F04B7/06
Filed: 1935-10-31
Abstract: 465,169. Percussive drills. ALCOCK, A. U. Oct. 31, 1935, No. 30108. [Class 124] [Also in Groups XXIV and XXVIII] Consists in means for converting rotary motion into combined rotary and reciprocating motion and is applicable to pumps, compressors and percussion drills. In the Figure, the shaft 1 is connected by a link 6 to a pin 7 rotatable in a disc 3a whose axis is displaced from that of shaft 1. The other end of pin 7 is connected to a piston 10 by a link 6a. The axial movement of piston 10 is twice that of the pin 7. In a modification, Fig. 11 (not shown), driving shafts extend from both sides of a driving pulley and actuate a pair of pump pistons the axes of which are respectively above and below that of the driving shafts. According to the Provisional Specification, the pin 7 is slidable in the disc 3a which is prevented from moving axially and is itself driven to actuate a pump on either side.
Patent GB-254596-A (GB)
Title: Improvements in or relating to variable square law electric condensers
IPC: H01G5/12
Filed: 1925-11-28
Abstract: 254,596. Cianchi, A. Nov. 13, 1924, [Convention date]. Condensers of the type in which the plates are of helical screw-and-nut form, have a guide for the main spindle, the guide carrying the moving plate tending to minimise hand capacity. The screw a is mounted on a guide o which is rotatably mounted on a screw c on a spindle e of oval, flat, square, or like section and wholly or partly of insulation to reduce hand capacity. A combined translational and rotational movement is imparted to the screw a by means of a pin n which is passed through the guide o, if of insulation, or otherwise through the insulating. lining o<1>, into the thread of the screw c. The pitch of the screw a and nut b are equal so that the dielectric, which may be air or solid, is maintained. The mechanism could be eliminatedby embedding the fixed plate in solid dielectric which is grooved to receive the moving plate. The moving plate a, which may be corrugated, is of a slightly conical shape to provide a square law variation, and carries a disc h operating an indicator l. The columns m, which are surrounded by cylindrical members p threaded to receive the fixed plate b, are insulated at their middle parts, or they may be formed of a plurality of parts separated by insulation.
Patent GB-646389-A (GB)
Title: Improvements in or relating to animals traps
IPC: A01M23/24
Filed: 1947-11-12
Abstract: 646,389. Rabbit traps. C. H. R. Nov. 12, 1947, No. 30137. [Class 5(i)] A catch 5 on a pivoted tread-plate 4 engages a member 8 which holds down bars 9 against the action of a spring 11. When the. catch 5,is released the animal is caught between the bars 9 and an arc 3 fixed to and upstanding from the base 1.
Patent GB-916063-A (GB)
Title: New polymeric materials
Inventor: BAMFORD WILLIAM RANDALL
IPC: C08G18/38
Filed: 1960-09-01
Abstract: A process for the production of polymeric materials comprises the reaction of a di-isocyanate with a diol having the general formula <FORM:0916063/IV(a)/1> where R is a polymethylene group having from 4 to 10 carbon atoms or a p-phenylene group and Z is a divalent group having the general formula >C(R1)CH2OH or <FORM:0916063/IV(a)/2> R1 being an alkyl or aryl group or an alkyl or aryl group having a halogen or an alkoxy substituent.  The reaction can be p  effected by heating the reactants in a solvent such as hydrocarbons, chlorinated hydrocarbons or ethers.  In Example (1) bis (1:1:1-trimethylolpropane)-p-phenylenediboronate and 4:41-diisocyanatodiphenylmethane are reacted together in toluene. The solid product is dissolved in dimethylformamide and reprecipitated by adding methanol.  In otherwise similar examples the reactants employed are (2) 2:4-diisocyanatotoluene; (3) bis (triethanolamine) tetramethylenediboronate; (4) bis (1:1:1-trimethylolethane) p-phenylenediboronate, triethylamine being added as a catalyst.  According to the Provisional Specification Z in the above formula may represent the groups =C(R2)(CRHOH) or (-CR3R4)2N-CR3R4-CRHOH where R is a hydrogen atom or a methyl or ethyl group, R2 is an alkyl or aryl or substituted alkyl or aryl group and R3 and R4 are hydrogen atoms or methyl groups. Specification 913,385 is referred to.
Patent GB-945824-A (GB)
Title: ªÏ-(pyridyl-3)-or ªÏ-(piperidyl-3)-propanol and derivatives thereof and processes for their manufacture
IPC: C07D213/79
Filed: 1961-08-22
Abstract: The invention comprises compounds of the formula Z-(CH2)3-OR1 (wherein Z is a 3-pyridylo a 3-(N-R2-piperidyl)-radical, R2 being hydrogen, C1 - 4 alkyl or benzyl, and R1 is -(CH2)n-NR3R4, -CO-NR3R4 or -COR6, R4 is C1-4 alkyl, cyclohexyl, benzyl or phenethyl, or phenyl which may optionally be substituted by a chlorine or bromine atom or a methyl, ethyl, hydroxy, methoxy or ethoxy group, R3 is hydrogen or R4, n is 2 or 3, and R6 is pyridyl, N-R2-piperidyl, piperidino, morpholino or N-methylpiperazino), their acid-addition salts and their quaternary ammonium derivatives; and their preparation by (1) reacting an alkali metal salt of the alcohol Z-(CH2)3-OH with a compound Hal-(CH2)nNR3R4 (wherein Hal is chlorine, bromine or iodine) or reacting the alcohol with an isocyanate R4.NCO, a urea chloride R3R4N.COCI or phosgene and then an amine NHR3R4, piperidine, morpholine or N-methyl-piperazine; or (2) reacting a compound of the formula Z-(CH2)3-Y (wherein Y is OH, O acyl, chlorine, bromine or iodine) with an acid R6. COOH or a derivative thereof; or (3) hydrogenating a compound of the invention wherein Z is pyridyl or a quaternary ammonium derivative thereof to give the corresponding piperidyl compound; or (4) introducing the radical R2 into a compound not containing it by known alkylation or aralkylation and/or reduction methods, e.g. alkylation with an alkyl or aralkyl halide or with an aldehyde followed by hydrogenation, or hydrogenolysis of a benzyl compound. Examples illustrate these methods and also describe the hydrogenation of an N-phenyl-carbamic acid ester of the invention to the corresponding N-cyclohexyl carbamic acid ester. The preparation of acid-addition and quaternary ammonium salts is also described.  Omega-(pyridyl-3)-propanol is prepared by condensing b -picoline with ethylene oxide. Omega-(piperidyl-3)-propanol is prepared by catalytic reduction of the pyridyl compound or by chemical reduction of nicotinoylacetic acid ethyl ester. The N-alkyl- or N-benzyl-piperidyl compounds are prepared by catalytic hydrogenation of the corresponding quaternary pyridinium salts.
Patent GB-299202-A (GB)
Title: Improvements in and relating to vertical retorts and the like
IPC: C10B1/04
Filed: 1927-11-11
Abstract: 299,202. Lander, C. H., and Shaw, J. F. Nov. 11, 1927. Discharging.-In a vertical retort the discharge device includes a grid 20 and pivotally mounted weighted bars 21, rotary arms 22 dislodging the coke resting on the grid. A door 25 rotatable on a spindle 26 isolates the lower portion 27 of the coke chamber to which steam may be admitted. Specification 299,201 is referred to.
Patent GB-1161026-A (GB)
Title: Improved flocked product and methof of producing same
IPC: D04H11/00
Filed: 1967-07-03
Abstract: 1,161,026. Flocked products. NATIONAL DISTILLERS & CHEMICAL CORP. 3 July, 1967 [7 July, 1966], No. 30479/67. Heading B2E. A flocked product is prepared by applying to moving member a thermoplastic organic polymer so as to provide a continuous smooth substrate for the product, heating the smooth substrate so that the surface is molten, directing flock material at the moving substrate on the carrier member whereby the bulk of the flock adheres to the molten surface of the polymer substrate, post-heating the substrate to ensure penetration of the flock adhering to the substrate, cooling the flocked substrate, removing the excess flock and removing the product from the carrier. The organic polymer may be a polyolefin such as polyethylene polyvinyl chloride or copolymers of ethylene and vinyl acetate, ethylene and methyl acrylate, styrene and acrylonitrile, and acrylonitrile, butadiene and styrene. The polymer may be applied as a powder or by extrusion.