baber/WOPTO huggingface dataset:
Patent GB-435024-A (GB)
Title: Improvements in and relating to the preservation of rubber
IPC: C08K5/18
Filed: 1934-02-06
Abstract: Alkoxydiarylamines are prepared by reaction of m- or pacetylaminoalkoxy-benzene or -toluene or -xylene with a halogeno-benzene or -toluene or -xylene or an alkoxy derivative thereof, or by alkylation of the corresponding hydroxydiarylamines. In examples, 3-hydroxy-4<1>-methyl-diphenylamine, obtainable by reaction of resorcinol and p-toluidine, is methylated; bromobenzene is reacted with acetyl-p-anisidine in presence of potassium carbonate and copper bronze, the intermediate acetyl derivative being hydrolyzed with dilute hydrochlorin acid; and 3 : 4<1>-dimethoxydiphenylamine is made by reacting resorcinol with p-anisidine and methylating the product.  Specifications 276,968, [Class 70], and 434,951 are referred to.ALSO:To prevent oxidation and flex-cracking of rubber, there is incorporated in the rubber mix an alkoxy- or polyalkoxy diarylamine, in which the alkoxy group or groups are in the meta or para position to the imino group, and the aryl radical is phenyl, tolyl or xylyl; 4 : 41 dimethoxy diphenylamine is excluded.  Examples are given of the use of p-methoxydiphenylamine, 3-methoxy-41 methyl diphenylamine, 3 : 41-dimethoxydiphenylamine, and the following preparations are referred to; alkoxy-diarylamines from m- or pacetylamino-alkoxy-benzene or -toluene or -xylene and a halogeno-benzene or -toluene or -xylene, or an alkoxy derivative thereof, or from alkylation of m or p hydroxy-diarylamines.  For example, dimethylsulphate is reacted with 3-hydroxy-41-methyl-diphenylamine, obtainable by reaction of resorcinol and p-toluidine, and bromo-benzene is reacted with acetyl-p-anisidine in presence of potassium carbonate and copper bronze, the intermediate acetyl derivative being hydrolyzed with dilute hydrochloric acid.  3 : 41-dimethoxy-diphenylamine is made by reacting resorcinol with p-anisidine, and then methylating the product.  Specifications 276,968, [Class 70], and 434,951 are referred to.
Patent GB-1502244-A (GB)
Title: Magnetic probes for measuring fields or field gradients
IPC: G01R33/00
Filed: 1976-06-10
Abstract: 1502244 Magnetic field measuring apparatus INSTITUT DR. FRIEDRICH FÍRSTER PR FGER TEBAU 10 June 1976 [10 June 1975] 24104/76 Heading G1N In a magnetic field measuring probe the probe body 2 carrying the field sensing element 10 is supported in a tube 5 by supporting bodies 3, 4, supporting body 4 including a setting mechanism 8 for adjusting the position of the probe body 2 in the direction of arrow 7. Support 4 and setting mechanism 8 comprise a block 31 which is retained in the base tube 5 by screws 30 and provided with a groove 43 in which slides a slide 33 driven by threaded spindle 32. Spindle 32 is supported in sheet metal cross-bars 36, 37 and actuated by a square box wrench co-operating with square head 42 via hole 29. Rubber springs 45 disposed in hole 44 of block 31 together with slide shoe 47 prevent play of slide 33. A cylindrical hole 52 in the side of slide 33 co-operates with a ball 25 (or other spherical surfaced object) fixed to the end 12 of probe body tube 9 so that as the spindle 32 is rotated slide 33 moves up and down and applies a force to ball 25 to move the probe body 2 in the direction of arrow 7 to alter its parallelism with respect to axis 6. The other end of the probe body is connected to support body 3 by a resilient spring wire 21 which permits movement in two degrees of freedom and prevents movements in the axial direction. One of the holes in the member 11 and body 3 are off axis so as to provide a pre-tension to probe body 2 in the direction of arrow 24. Slide 33 may be provided with a slot 49 the opening angle of which is adjustable by grub screw 50 to set the thread pressure of the threaded spindle 42. If magnetic field gradient is to be measured another probe body is mounted in tube 5 at a given axial distance from probe 2, the position of the second probe body being adjusted in a direction orthogonal to arrows 7 so that exact parallelism of the two probes is obtained. Both supporting bodies 3, 4 may include a setting mechanism 8.
Patent GB-406661-A (GB)
Title: An improved process and apparatus for the production of paper having a marbled or like apparatus
Filed: 1932-08-29
Abstract: 406,661. Marbled paper or other cellulosic material. DIAMAND, A., 48, Clarendon Road, Holland Park, London. Aug. 29, 1932, No. 24116. [Classes 96 and 140.] In producing marbled effects, paper, silk, linen &c. is damped over areas forming characters &c. of an advertisement &c. and fed into contact with a pigment or pigments carried by a floating medium, e.g. by a film of water, Tragacanth gum, linseed oil &c., the pigments being transferred to the undamped areas of the paper &c. The water &c. is fed from a reservoir 2, by rolls 3, 4 and a doctor 5 to a sloping table 6 of stone &c., pigments from tanks 7, 14, 14<1> being dropped on to the water film by a plate 11 having saw-teeth 12, and by bladed drums 17, 17<1>, the arms 18, 18<1> of which flick drops of pigment on to the water &c. which carries them beneath a comb 19 having teeth parallel to the table surface, and reciprocated across the flowing film, to distribute the pigments. The paper &c. 20 from a spool 21 passes between a roller 23 and an embossed roller 22 which damps predetermined areas of the paper &c. or colours them with pigments soluble in different media from those on the water film, e.g. in water, alcohol or oil. Excess water is removed from the paper &c. and returned to the reservoir by a doctor 27, the paper being wound up at 26. Bronze powder may be applied by mechanically tapping a sieve container above the table 6.
Patent GB-444811-A (GB)
Title: Improvements in and relating to the production of engraved representations of original subjects
IPC: B41C1/05
Filed: 1934-08-21
Abstract: 444,811. Distant - control systems. DALTON, J. W., 17, The Crescent, Belmont, Sutton, Surrey. Aug. 21, 1934, No. 24141. [Class 40 (i)] [See also Group XVI] In apparatus for the production of engraved representations of original subjects, of the kind having means adapted in accordance with the depth of tone of successively scanned small areas of the original subject to set up at the input of an electrical relay a potential proportional with the depth of tone, the marking- tool, which is operatively connected with the output of the relay, is in the form of an electrically-heated stylus adapted upon contact with one of a plurality of successive small areas of the surface to be engraved to influence the surface by heat to an extent corresponding to the magnitude of the potential set up, and hence with the depth of tone of the small area being scanned. The original 1 is scanned with the aid of a light source 2 and a photo-electric cell 4, which is connected to an oscillator amplifier 5. The output leads of the oscillator 5 are connected through a rectifier 7 with a resistance 8, which is connected to the grids 11, 18 of two gas-filled thermionic relays 12, 17, connected in parallel. The plate circuits of both relays include a transformer secondary 28, and that of the relay 12 also includes a solenoid 22 arranged around a core 23 on the marking-tool spindle 24, which serves when energized to move the spindle downwards against a spring 42. The plate circuit of the relay 17 includes leads 34, 36 to the marking- tool point, which comprises a hollow conical shell formed in two parts 31, 32 of platinum, platinum-iridium, tungsten, &c., the parts being electrically separated from one another except at the point 33. The plate 38 to be engraved is supported on a member 39 immediately below the marking-tool. In use, the cell 4 modulates the output from the oscillator 5, and this varies the output of the relays 12, 17 so that the spindle 24 of the marking-tool is displaced axially, and the tool point is heated for a time which is proportional to the depth of tone of the small area being scanned. Specifications 389,102 and 391,838, [both in Group XVI], are referred to. According to the Provisional Specification, the marking-tool and the surface to be engraved may be continuously heated and the tool is moved downwards against a spring by a crank-operated plunger. A wedge is inserted between the top of the marking-tool and the plunger, and is displaced by means of a solenoid energized by a valve or other relay under the control of the oscillator output as modulated by the photo-electric scanning device, in such a way that the marking-tool is caused to operate to a greater or less extent on the surface to be engraved.
Patent GB-1508478-A (GB)
Title: Herbicidal compositions
IPC: A01N43/78
Filed: 1975-06-04
Abstract: 1508478 Herbicidal composition DOW CHEMICAL CO Ltd 4 June 1975 [5 June 1974] 24169/75 Divided out of 1494205 Heading A5E A herbicidal composition comprises a synergistic mixture of 3.6 dichloropicolinic acid or a derivative thereof, e.g. ester or salt, and 4 chloro - 2 - oxobenzothiozolin 3 - yl acetic acid (Benazolin) or a derivative thereof, e.g. ester or salt. Compositions may be prepared in solid or liquid form with the usual carriers, diluents and surface active agents. The compositions may also contain other additives e.g. fertilizers, phytotoxicants, plaint growth regulaints or pesticides. The compositions are particularly suitable for the control of weeds in cereal crops.
Patent GB-518178-A (GB)
Title: Improvements in or relating to aircraft wing construction
IPC: B64C3/00
Filed: 1938-08-16
Abstract: 518,178. Aircraft wings. AEROPLASTICS, Ltd. (formerly DEEKAY AIRCRAFT CORPORATION, Ltd.), and STILL, S. C. HART-. Aug. 16, 1938, No. 24178. Addition to 497,623. [Class 4] Aircraft wings as claimed in the parent Specification have the cells divided from one another by a metal box spar or by thin sheet or plate metal members instead of by plates of moulded thermo plastic material. Fig. 2 shows a wing formed with upper and lower stressed members 3 of thermo-hardening plastic material' connected by screws 6, Fig. 5, to semicircular members 5 secured to flanges 4 on metal plate members 2 extending along the span of the wing. Ribs 10 are formed on the members 3 at intermediate positions and fore-and-aft partitions are provided at intervals. The plates 2 are reinforced at intervals. In an alternative construction the members 3 are secured to a single box girder structure.
Patent GB-766716-A (GB)
Title: Improvements in and relating to solenoids
IPC: H01F7/08
Filed: 1954-08-20
Abstract: 766,716. Electromagnets. IGRANIC ELECTRIC CO., Ltd. Aug. 20, 1954 [Aug, 28, 1953], No. 24295/54. Class 35. In order to minimize the deleterious effects of the repeated shocks occasioned by the force of a solenoid plunger 5, a clevis pin 8 connecting the plunger clevis portion 7 to a tongue portion 6a of a load 6 is separated from at least the plunger or the load tongue pin receiving openings by an annulus of a rubber or rubber-like material. Fig. 3 shows two such annuli 9 located on a surrounding spacer member 8b between the end portions of the pin 8 and the aligned plunger clevis openings 7c, 7d. The solenoid coil 3 is held in position by a spring 4 as shown in Fig. 1.
Patent GB-645120-A (GB)
Title: A word puzzle
IPC: A63F9/00
Filed: 1948-09-16
Abstract: 645,120. Word puzzles. DEAVIN, E. A. H., MANSELL, J. A., and ARMITAGE, T. Sept. 16, 1948, No. 24337. [Class 132 (iii)] A word puzzle comprises an oblong box containing twelve square letters forming the words swan, blot and grid in which the D of the last word is removed, the letters are slid about to form other words the last word being completed by replacing the D in its original position.
Patent GB-1294052-A (GB)
Title: Rocket engine thrust chamber
Inventor: ZUECH ROMEO ANTHONY
IPC: F02K9/64
Filed: 1971-04-19
Abstract: 1294052 Copper-base alloy NORTH AMERICAN ROCKWELL CORP 19 April 1971 [30 March 1970] 24441/71 Heading C7A A wallet engine thrust chamber is formed from an alloy consisting of 94-98% copper and 2-6% silver. Test samples and thrust chambers were cast after vacuum melting and pouring and were heat treated at 1375‹F.in an argon atmosphere; some were aged at 1200‹F. This alloy is stated to combine good foundry characteristics and thermal conductivity with good high-temperature ductility, and data are given for the latter. The alloy may be modified by the addition of up to 0À10% of alloying elements such as grain refining agents.
Patent GB-774283-A (GB)
Title: Process for the combined purification and methanisation of gas mixtures containing oxides of carbon and hydrogen
IPC: C10K3/04
Filed: 1953-09-08
Abstract: A gas mixture containing oxides of carbon and hydrogen, and preferably substantially free from hydrogen sulphide is passed at a temperature within the range 350-600 DEG , preferably 400-500 DEG C., successively through three zones containing fluidized materials, the first a spent nickel-magnesia-kieselguhr methanization catalyst, the second an alkaline earth metal compound, and the third a nickel-magnesia-kieselguhr methanization catalyst, oxygen being added to the exit gas from the first zone in amount sufficient to oxidize the hydrogen sulphide therein.  Pressure may be atmospheric but is preferably elevated, e.g. 1-35 kg/cm.2.  The initial mixture, freed from H2S and having a CO : H2 ratio from 1 : 10 to 1 : 0.5, has its organic sulphur converted to H2S in the first zone while unsaturateds are hydrogenated.  The second zone may contain calcium oxide or carbonate, suitably with oxygen-containing compounds of Fe, Al, Ti or Si as activators.  Oxygen or air introduced equivalent to, e.g., 3-30, preferably 12-20, mols. O2 per mol. H2S.  Two or more reactors in series are preferably used.  Methanization is then effected in the third zone.  Steam is added if the gases are deficient in hydrogen, e.g. 0.2-3 mols. steam per mol. excess CO, and the CO2 formed may be removed to obtain a product containing above 90 per cent methane. Gas recycling may be used in the third zone.  The three zones may be superposed in a common casing.  Gas loads may be 300-5000 or more vols/vol. catalyst/hr.  Gas velocities of 2-15 cm/sec. fluidize the methanization catalysts while the alkaline earth compounds require 8-60 cm/sec.  By periodically increasing the gas velocity, methanization catalyst may be carried over to permit replacement by fresh catalyst.  In an example, water gas is treated, temperatures being 450 DEG  C. in the first two zones and 380-420 in the last, pressure being 11 kg/cm.2.
Patent GB-689386-A (GB)
Title: Improvements in or relating to agitating machines for use in opening wool and like textile fibres
IPC: D01G9/02
Filed: 1949-09-28
Abstract: 689,386. Opening wool &c. ROBERTS (ENGINEERS), Ltd., and ROBERTS, J. Nov. 8, 1950 [Sept. 28, 1949], No. 24846/49. Classes 120(i) and 120(iii) In an agitating machine for opening wool or other fibres, of the type comprising a drum having an inner shell in the form of a grating or lattice in which the material is subjected to the action of beater arms or the like, the grating consists of bars, rods or strips adapted to be cleaned whilst the machine is operating by reciprocating them endwise relative to associated scrapers or cleaners, or by reciprocating scrapers relative to the bars, or by reciprocating both the bars and scrapers relative to each other. As shown the grating consists of parallel rods 1 the ends of which are connected to a reciprocating ring 5 and which slide in holes in the end plates 4 of the outer shell of the drum and in cleaner plates 6 secured to longitudinal members 7 of the outer shell. Plates 6 are so spaced that the full length of each rod is cleaned as the grating reciprocates. Ring 5 may be reciprocated by a self-reversing clutch driven from an electric motor which may also drive shaft 2 carrying the beater arms 3. In an alternative arrangement, the grating is stationary whilst plates 6 are reciprocated; in a further arrangement, both the grating and the plates are reciprocated in opposite directions, the reciprocation of each being only half that of the rods or plates alone. The reciprocation may be continuous or intermittent. The axis of the drum may be horizontal inclined, or vertical.
Patent GB-1430647-A (GB)
Title: Method for manufacturing a synthetic filament
IPC: D01D10/04
Filed: 1973-05-24
Abstract: 1430647 Oval filaments J-P CORNELIS 24 May 1973 [2 June 1972] 24862/73 Heading B5B Polyamide filaments, transparent to u.v. rays, and having a substantially oval crosssection are produced by extruding, delustring and then flattening. After every process step during which the temperature rises to point at which spheralites of a size able to make the filaments non-transparent to u.v. rays are formed, the polymer is cooled to prevent them forming. The polyamide extruded contains one or more stabilizers against u.v. rays and heat, the preferred stabilizer being a sodium or potassium halide. The delustring agent is preferably formic acid or a solution of copper lactate.
Patent GB-449377-A (GB)
Title: Colotomy drawer or trunk garment
IPC: A41B9/02
Filed: 1935-09-07
Abstract: 449,377. Wearing-apparel. RENDER, E. K., Bend o' the Lane, Blossom Way, Hillingdon, Middlesex. Sept. 7, 1935, No. 24944. [Class 141] A trunk garment of waterproof material for retaining excretions of the body, e.g. in surgical operations, which can be removed from the body in the form of a sheet, is provided with elastic bands C, Figs. 1 and 2, adapted to encircle and fit closely to the thighs in the operative position, and with a central flap D which is adapted to be drawn up at the front to make a close fit on the abdomen, and to be fastened to buttons or equivalent devices E, the garment being further secured on the wearer by means of co-operating fastenings B, B<1> and by means of a tape A adapted to encircle the wearer's waist. In a modification, Fig. 4, the garment is provided with a single elastic thigh band C, and is adapted to cover only one side of the wearer, being secured in position by means of a waist tape A, and by securing the flap D to fasteners E.
Patent GB-537030-A (GB)
Title: Sterol compounds and process for their preparation
IPC: C07J75/00
Filed: 1939-08-31
Abstract: 537,030. Sterol derivatives: DU PONT DE NEMOURS & CO., E. I. Aug. 31, 1939, No. 24999. Convention date, Sept. 2, 1938. [Class 2 (iii)] 7-Dehydro compounds of sterols are prepared by oxidizing an aromatic ester of a sterol having a hydroxy group in the 3-position and a double bond in the 5:6-position, reducing the 7-oxo-ester so produced to the corresponding 7-hydroxy-3-mono-ester, and esterifying this compound to a di-ester. The compounds are stated to be of great value as provitamines. The preferred acid to be used for the esterification is benzoic acid, but substituted benzoic acids may also be used. Substituents mentioned include halogens, alkoxy, normal and branched-chain alkyl group and aryl group. Naphthalenic acid may also be used. Oxidizing agents include chromic acid and chromic anhydride, and selenium dioxide, either alone or in the presence of iodine. Reducing agents include aluminium alcoholates such as methylate ethylate, propylate isobutylate and isoamylate. The corresponding alcoholates of other earth metals such as zirconium and magnesium may also be used either alone or in admixture with solvents such as hydrocarbons and alcohols. The esterification of the 7-hydroxy group may be carried out by the usual agents such as acid chlorides or anhydrides preferably in the presence of a base such as pyridine, piperidine piperazine aniline, morphaline and aliphatic amines. In examples (1) cholesterol benzoate is oxidized with chromic acid in glacial acetic acid solution and the 7-oxocompound so produced is reduced with aluminium isopropylate to the corresponding 7- hydroxy compound and this converted into the dibenzoate of 3:7-dihydroxy cholestene ; (2) Cholesterol benzoate is oxidized with chromic anhydride in glacial acetic acid solution and the 7-oxo-compound reduced to the corresponding 7-hydroxy compound by means of aluminium isopropylate in isopropyl alcohol solution. The 7-hydroxy-cholesterol-3-monobenzoate is then esterified with acetic anhydride in the presence of pyridine. Specification 454,260 is referred to.
Patent GB-1088707-A (GB)
Title: Manufacture of pyridines
Inventor: BARTHOLOMEW DONALD HERBERT
IPC: C07D213/09
Filed: 1965-05-04
Abstract: Pyridine or derivatives thereof are obtained by interacting ammonia with glutaraldehyde or a substituted glutaraldehyde in the vapour phase at an elevated temperature in the presence of a catalyst comprising a noble metal. The noble metal, i.e. silver, gold, ruthenium, rhodium, palladium, osmium, iridium or platinum, may be used in finely divided form on a carrier or support and the reaction may be effected at 200-500 DEG  C.  The ammonia may be employed in an amount of 1 to 20 moles per mole of starting material, the reaction mixture may contain molecular oxygen, suitably in an amount of 0.1 to 1 mole per mole of starting material, and other diluent gases or vapours, e.g. steam, may be present.
Patent GB-667419-A (GB)
Title: Improvements in the production of acetals
Filed: 1949-09-30
Abstract: Acetals are prepared by treating saturated aliphatic monohydric alcohols having not more than 3 carbon atoms in the molecule in the liquid phase with acetylene in the presence of a mercury salt having an acid reaction or a mixture of mercuric oxide and sulphuric acid, by a process comprising continuously feeding alcohol and acetylene into a mixture of the acetal of the alcohol used and said alcohol which mixture contains a preponderating amount by weight of the acetal calculated on the acetal-alcohol mixture, and distilling from the reaction mixture acetal substantially at the rate at which it is formed from the acetylene and the alcohol.  As a mercury salt having an acid reaction there may be used mercuric sulphate alone or in admixture with sulphuric acid.  It is preferred to carry out the reaction at ordinary pressure.  In examples, methyl alcohol and some oleum are charged into a stirred reaction vessel, mercuric oxide added periodically and acetylene introduced continuously; the mixture soon boils as a result of the heat generated by acetal formation and is maintained under total reflux until the acetal concentration reaches the desired level, specifically (1) 75 per cent; (2) 90 per cent; and (3) 96 per cent, whereupon methanol is thereafter fed continuously with the acetylene and acetalmethanol vapours of the composition of the reaction mixture are allowed to distil off continuously.  Ethyl and n- and iso-propyl alcohols may be similarly treated.  Instead of forming the acetal-alcohol mixture in situ, a pre-formed acetal-alcohol mixture may be used and then acetylene and alcohol are fed together continuously.  It is necessary to withdraw spent catalyst and add fresh mercuric oxide periodically, as the oxide tends to be reduced during the reaction.  U.S.A. Specification 1,796,690 is referred to.  The Specification as open to inspection under Sect. 91 relates to the continuous production of acetals by treating alcohols in the liquid phase with acetylene in the presence of acid mercury catalysts, which comprises carrying out the reaction in an acetal-alcohol mixture containing a preponderating amount of acetal.  This subject-matter does not appear in the Specification as accepted.