baber/WOPTO huggingface dataset:
Patent GB-745108-A (GB)
Title: 2-methyl-pyridine-(4)-carboxylic acid derivatives and process for the manufacture thereof
IPC: C07D213/86
Filed: 1953-11-04
Abstract: The invention comprises 2-methyl-pyridine-(4)-carbonyl-hydrazones of ketones and aldehydes other than formaldehyde and the corresponding hydrazines in which the group <FORM:0745108/IV(a)/1> is replaced by <FORM:0745108/IV(a)/2> excepting those hydrazines claimed in Specification 737,758, in which an alkyl, aralkyl or alkenyl group containing not more than 7 carbon atoms is attached to NH- group which is not itself attached to the carbonyl group.  They are prepared by reacting 2-methyl-pyridine-(4)-carboxylic acid hydrazide with the aldehyde or ketonic compound and, if desired, hydrogenating the hydrazone formed.  The reaction is preferably effected in the presence of a diluent, e.g. water and/or a lower alcohol or excess of the carbonyl compound, at slightly elevated temperature. Hydrogenation is preferably carried out by agitating with hydrogen in the presence of a catalyst such as platinum oxide.  A long list of suitable aldehydes and ketones is given and includes aliphatic, substituted aliphatic, araliphatic, aromatic and substituted aromatic, heterocyclic and substituted heterocyclic mono- and dialdehydes and ketones.  The examples describe the preparation of the 2-methyl-pyridine-(4)-carbonyl hydrazones of (1) propionaldehyde, (2) isobutyraldehyde, (3) glyoxal, (4) crotonaldehyde, (5) cinnamaldehyde, (6) benzaldehyde, (7), (8) and (9) o-, p-, and m-hydroxybenzaldehyde, (10) vanillin, (11) p-dimethylaminobenzaldehyde, (12) and (13) p- and m-nitro-benzaldehyde, (14) 2-hydroxy-5-chlorobenzaldehyde, (15) 2-hydroxy-5-bromobenzaldehyde, (16) furfuraldehyde, (17) pyridine-(3)-aldehyde, (18) acetone, and the hydrogenated compound N1 - [2 - methyl - pyridine - (4) - carbonyl]-N2-isopropyl-hydrazine, (19) pyruvic acid, (20) levulinic acid, (21) acetophenone, (22) 2-aceto-furane, (23) cyclopentanone, (24) cyclohexanone, (25) a -decalone, (26) alloxan, (27) methyl ethyl ketone, (28) diethyl ketone, and the hydrogenated compound N1-[2-methylpyridine - (4) - carbonyl] - N2 - (a  - ethyl - n - propyl)-hydrazine, (29) propiophenone, (30) guaiacol dialdehyde, (31) diacetyl, (32) 2-aceto-thiophene, (33) succinic dialdehyde (using 2,5-diethoxy-tetrahydrofurane), (34) a ,a -dimethyl-b -hydroxy-n-propionaldehyde, (35) p-hydroxyacetophenone, (36) 5-nitro-furfuraldehyde, (37) p-acetylamino-benzaldehyde, (38) anisaldehyde, (39) piperonal.  2 - Methyl - pyridine - (4) - carboxylic acid hydrazide is prepared by hydrogenating 2-methyl - 6 - chloro - pyridine - (4) - carboxylic acid methyl ester using a palladium catalyst in methyl alcohol containing anhydrous potassium acetate, and reacting the 2-methyl-pyridine-(4)-carboxylic acid methyl ester with hydrazine hydrate.
Patent GB-1168749-A (GB)
Title: Cylinder Lock.
Inventor: ROSSETTI CHARLES
IPC: E05B9/08
Filed: 1968-06-26
Abstract: 1,168,749. Cylinder locks. C. ROSSETTI. 26 June, 1968 [7 July, 1967], No. 30486/68. Heading E2A. The rotatable cylinder or barrel 11 of a cylinder lock is secured against axial movement within bore 12 of a lock casing 13 by a resilient split ring 14 which is caused to engage in opposed grooves in both the barrel 11 and the lock casing, whereby it provides the sole means for preventing axial movement of the barrel in both directions. Assembly is effected by providing a conical surface on one of the members 11, 13 against which the ring 14 is urged axially by its engagement in the groove in the other member whereby the ring is compressed (in the case of the embodiment shown in Fig. 2) or expanded (Fig. 8, not shown) from its unstressed condition to cause it to jump into the other groove. The arrangement is said to result not only in shortening the overall length of the lock but also in the prevention of unauthorised dismantling.
Patent GB-1366617-A (GB)
Title: Method of regulation by sampling the partial pressure of a gas mixture
IPC: G05D16/20
Filed: 1972-06-29
Abstract: 1366617 Investigating plants etc.; in controlled environment COMMISSARIAT A L'ENERGIE ATOMIQUE 29 June 1972 [5 July 1971] 30578/72 Heading G1B [Also in Division G3] In the investigation of the development of plants or animals as a function of the atmosphere in which they live, the partial pressures of the constituents of a mixture of gases in one or more vessels A, B, C which contain the plants &c. are kept constant by a system in which the partial pressures are measured and controlled independently of each other selectively in either of two modes, in one of which the pressures are kept substantially constant and in the other they are kept within prescribed limits. The measurement is made by a mass spectrometer 21 which is switched in turn to the various vessels. For each vessel there are two control circuits 25, 26, each of which has as many channels as there are constituent gases. The spectrometer measures each constituent in turn and, with a mode switch 27 in the position shown, the measured values are compared with respective references in circuit 25. Any error results in either additional gas being admitted at VI or surplus gas being extracted at VP. With 27 in the opposite position the measured values from 21 are compared with limiting values in 26; if these are exceeded this is signalled to 25 for corrective action as before. The circuits 25 and 26 are described Figs. 3 to 7 (not shown). They comprise comparator using operational amplifiers and F. E. transistors; the control valves are energized by pulses of constant length at a frequency proportional to the error signals, produced in a circuit which is gated on for a finite time while the spectrometer is measuring the corresponding pressure. Information relating to the behaviour of the specimens is gained from the output of 25 and recorded at 24.
Patent GB-428067-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines of the compression ignition type
IPC: F02B19/08
Filed: 1933-11-04
Abstract: 428,067. Oil engines. RUSSELL, F. C., Lundy, Warwick Road, Hale, and BRADBURY, J. H., 8, Broadway, Ashton-on-Mersey, both in Cheshire. Nov. 4, 1933, No. 30661. [Class 7 (iii)] Relates to engines having a combustion chamber, in shape substantially a volume of revolution with a valve or valves arranged at the axis thereof and forming the side walls of the chamber which has a relatively short axis, and is connected to the cylinder by an offset passage so that the air charge enters tangentially, the piston being provided with an extension adapted to enter the passage so as to form a restriction through which the last portion of air is compressed at a high velocity. According to the invention, the chamber is of flattened shape, its peripheral wall is concave, its radius of curvature being substantially smaller than the maximum radius of the chamber, the ports and valves being of relatively large diameter. The combustion chamber f communicates with the cylinder through the tangential passage g into which an extension e of the piston enters at the end of the instroke. The peripheral wall h of the chamber is concave and of similar curvature to that of the passage g, the sides being formed by the convex heads of valves i, j. The injector k is offset so as to direct the fuel jet on to a part l which is partly heat-insulated by a slot m which communicates with the cylinder through holes n, by means of which the slot is kept clear. Owing to the offset position of the injector, the chamber is shaped at h<2> to remove a shoulder which would impede the air rotation. The wall h<1> of passage g is slightly inclined to the cylinder axis so as to give, as the piston rises, a decreasing section to the crescent-shaped passage which merges into the concave periphery of the combustion chamber. Specification 361,202 is referred to.
Patent GB-1150958-A (GB)
Title: Improvements relating to Highly Orientated Pyrolytic Graphite
IPC: C01B31/00
Filed: 1967-07-04
Abstract: 1,150,958. Pyrolytic graphite. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 July, 1967 [5 July, 1966], No. 30679/67. Heading C1A. Highly oriented pyrolytic graphite is deposited from a carbon- and hydrogen-containing gas on to a substrate, e.g. electrographite, heated to at least 1800‹ C. but having a lower surface temperature than the gas supplied thereto. The temperature difference may be at least 100‹ C., preferably 200‹ to 500‹ C.; substrate temperature may reach 3200‹ C. Deposition may occur from such gases as CH 4 , CH 2 O, C 3 H 8  and C 6 H 6 , or, in a closed system hydrogen gas may transport carbon from a supply of the element at a higher temperature than the substrate, on which deposition then occurs.
Patent GB-914088-A (GB)
Title: Arc torch
IPC: H05H1/34
Filed: 1961-08-25
Abstract: 914,088. Arc torches. THERMAL DYNAMICS CORPORATION. Aug. 25, 1961 [Sept. 15, 1960], No. 30766/61. Class 39 (3). A tangential gas inlet passage opens into an arc torch substantially at and in the plane of the electron emitting surface of an electrode to establish a vortex of gas flow at that surface. Fig. 1 shows a torch comprising a cathode 11 and anode 16 connected across a D.C. source 10. The cathode 11 is separated from an inner nozzle 14 by a ceramic member 15 provided with a tangential gas inlet passage 20. In alternative embodiments (Figs. 2 to 4, not shown), a plurality of tangential passages are provided in the cathode 11 itself and lead to an open cavity formed in the end of the cathode, or the passages are formed at the inner end of the nozzle 14. An additional tangential passage may be provided at a point more remote from the cathode surface. Two gases, e.g. a shielding gas and a reactive gas can then be used. Reverse polarity arrangements are possible or the anode may be external of the torch body. Fig. 5 shows an arrangement in which an A.C. arc is established between electrodes 61. Gas is admitted through a tangential passage 66 at each electrode 61 and leaves through a tangential passage 70.
Patent GB-1445580-A (GB)
Title: Hydroxy alkyl derivatives of aromatic di- and polycarboxylic acid amides and their use as fixing agents in textile dyeing and printing
IPC: D06P1/651
Filed: 1973-10-09
Abstract: 1445580 Alkyleneoxy derivatives of aromatic di- or poly-carboxylic acid amides SANDOZ Ltd 9 Oct 1973 [13 Oct 1972] 30774/75 Divided out of 1445579 Heading C2C The invention comprises compounds of the formula wherein Y 1  and Y2 are ethylene, 1,2-propylene, 1,3-propylene, 1,2-butylene or phenylethylene with the proviso that (a) only the group Y 1  or Y 2  which is bound to N can be 1,3-propylene, and (b) each (Y 1 -0) or (Y 2 -O) chain contains no more than 2 phenylethylene groups; R 4 <SP>11</SP> is H, CO 2 M, OR 6  or -COX-(Y 1 O)m 1 -H; R<SP>11</SP> 5  is H, CO 2 M or-COX (Y 1 -O)m 1 -H; R 6  is H or R, M is a cation, X is -O- or -NR-, R is H, phenyl or phenyl-(C 2 -C 22 )alkyl which may be substituted OH, halogen or alkyl and having up to 22 C atoms in the aggregate thereof, (C 1 -C 22 )alkyl, (C 5 -C 7 )cycloalkyl, (C 1 -C 15 ) alkyl, (C 5 -C 7 ) cycloalkyl, (C 5 -C 7 ) cycloalkyl (C 1 -C 15 ) alkyl, (C 1 -C 15 ) alkyl (C 5 -C 7 ) cycloalkyl, (C 1 -C 15 )alkyl or a group -(Y 2 -O)m 2 - H, m and m 2  are integers 1 to 95, the sum of all such integers being 1 to 95; and z 1  and z 2  are integers 1 to 97, the sum of all such integers being 5 to 100, and when relevant, the sum of all the integers z 1 , z 2 , m 1  and m 2  being 6 to 100. They may be obtained by reacting a compound of the formula wherein R 8  is H or a group -Y 2 OH, with ethylene oxide, propylene oxide, butylene-1,2- oxide or styrene oxide. The products are useful as fixing agents in the dyeing and printing of textile materials. Compounds of Formula Ie may be obtained by condensing a compound of the formula or a reactive functional derivative thereof, with an alkanolamine of the formula
Patent GB-335750-A (GB)
Title: Improvements in or connected with springs for motor or other vehicles
IPC: F16F1/22
Filed: 1929-10-11
Abstract: 335,750. Cary, Ltd., W. E., and Cary, C. E. Oct. 11, 1929. Laminated springs.- With the object of damping the vibration of vehicle springs, each spring a is gripped between one or more auxiliary plate springs b and a U-shaped bracket d. Each plate is prevented from moving laterally by a clip c at one end. The cross-bar e of the bracket d rests in a central depression b<1> in the plate b. and the pressure exerted by the two is adjusted by nuts or other fastenings.
Patent GB-646045-A (GB)
Title: Improvements in the manufacture of 2-chlorobenzothiazoles
Filed: 1947-11-20
Abstract: 2-Chlorbenzothiazoles are prepared by the action of sulphuryl chloride on 2-mercapto benzothiazole or derivatives which are substituted in the benzene ring.  Preferably at least six molecular proportions of sulphuryl chloride are used for each molecular proportion of 2-mercaptobenzothiazole.  The process may be carried out at elevated temperature and in the presence of an inert solvent, e.g. benzene.  In the example, 2-chlorobenzothiazole is obtained by the action of sulphuryl chloride on 2-mercaptobenzothiazole.  Other starting materials mentioned are 2-mercapto-5-ethoxy-benzothiazole, 2 - mercapto - 5 - methoxy - benzothiazole, 2-mercapto-5-phenylbenzothiazole, 2-mercapto-4 - nitrobenzenethiazole, and 2 - mercapto - 5 - nitrobenzothiazole.  2 - Chloro - 5 - methylbenzothiazole may also be prepared similarly. 5-Methoxy- (and ethoxy-)-2-mercaptobenzthiazole may be prepared by treating the reaction product of disulphurdichloride and methoxy (or ethoxy) aniline with aqueous alkali and carbon bisulphide. 2-Mercapto-5-phenylbenzthiazole may be made according to the process of Specification 306,492 by treating 3-nitro-4-chlorbiphenyl with aqueous alkali hydrosulphite and after cooling reacting with carbonbisulphide.  2-Mercapto-4-nitrobenzthiazole may be similarly obtained from 2 : 3-dinitrochlorbenzene.
Patent GB-821196-A (GB)
Title: Method of and device for manufacturing carpets
IPC: D04H11/04
Filed: 1957-10-02
Abstract: 821,196. Cemented pile fabrics. COUQUE, P. Oct. 2, 1957 [Oct. 10, 1956], No. 30872/57. Class 142(4) Pile material 7, which may be wool, is pleated by cam operated arms 26 and retained between parallel plates 8, 9 by cam operated retainers 31, a viscous polymerizable monomer which may be vinylchloride is applied from a reservoir 10 to the upper ends of the loops which then pass beneath infra-red lamps 20, the fabric thus formed is reversed and the other  end of the loops secured with the  monomer, and the fabric is finally cut centrally to produce two pile fabrics. A fabric with a shorter pile can be obtained by securing the cut ends of the fabrics with more monomer and cutting that fabric centrally to produce two fabrics. This process can be performed repeatedly. The density of the loops can be varied by altering the speed of a conveyer belt 14, with respect to the feed of delivery rolls for the pile material.
Patent GB-1427776-A (GB)
Title: Process for the extraction of proteins from organic materials
IPC: A23L27/00
Filed: 1973-06-28
Abstract: 1427776 Extracting proteins from dried organic material NOVITAS NUPROT SA 28 June 1973 [18 July 1972] 30888/73 Heading C3H A process for the extraction of proteins from dried organic material containing a proteinaceous component and at least another organic component involves treating dried organic material with either a solvent for the proteinaceous material, which solvent is chosen from propylene glycol, m-cresol and 2-methoxyethanol, and is a non-solvent for the other organic component(s) or a solvent for the other organic component(s), which solvent is chosen from glycerol and ethylene glycol, and is a non-solvent for the proteinaceous component, separating the resultant solution from the residue and removing the solvent from the proteinaceous component. The examples describe: (1) treating lactose-reduced whey powder with glycerol and recovering undenatured, water-soluble protein powder from the solid phase by washing it with ethanol/acetone and drying; (2) treating dried blood plasma from slaughter houses and (3) dried, microbiologically treated municipal waste material with propylene glycol and recovering the proteins from solution by precipitating them with ethanol at - 10‹ C., dissolving the precipitate in water and drying.
Patent GB-194761-A (GB)
Title: Improvements in or connected with the pouring or teeming of molten steel or metal into ingot or like moulds
IPC: B22D37/00
Filed: 1921-11-18
Abstract: 194,761. Hosack, H. H. Nov. 19, 1921. Casting - machines; metal - pouring. - In casting ingots, metal is poured into the moulds without splashing by means of a sleeve or conduit extending to about the level of the metal in the mould. Moulds 4 are raised in pairs by a trolly and hydraulic ram or other means to surround the sleeves 2, the upper part of which is of metal lined with fire brick &c. and the lower part 2<x> which is of fire brick only connected to the metal part by lugs 2<xx>. Metal is poured from the ladle 1 through a funnel 10 and lined conduits 3 to the sleeves and as the metal rises in the moulds the ram is lowered so as to keep the ends of the sleeves just submerged, a float 16 and indicator 13 being employed for this purpose. In a modification, the ladle is mounted on a trolly, moves over the stationary moulds, and carries a device to raise the moulds over the sleeves which depend from the ladle.
Patent GB-425184-A (GB)
Title: An improved bath head rest
IPC: A47K3/12
Filed: 1933-11-07
Abstract: 425,184. Bath head-rests. WRIGHT, C. M., 12, York Buildings, Adelphi, London. Nov. 7, 1933, No. 30941. [Class 26] A head-rest for baths comprises a headsupporting member A supported from at least four hooks C engaging the top edge of the bath, two hooks on each side, by means of straps B provided with slip-fastenings D for adjusting the length of said straps. The straps which may be in more than one piece are of webbing and are connected by loops E to the hooks which are also covered with webbing and may be square to fit a squareedged bath.
Patent GB-631645-A (GB)
Title: Improvements in or relating to games score-indicating apparatus
IPC: A63B71/06
Filed: 1947-11-21
Abstract: 631,645. Scoring-apparatus for games. WOODHOUSE, A. A. Nov. 21, 1947, No. 30941. [Class 132 (ii)]  In scoring apparatus for games such as tennis a pole 10 is mounted by a pin 12 in a socket 11 so as to be rotatable and carries frames 15 holding name boards 16 and fitted with pivoted signal arms 17 to indicate the sets won and also carries members 22 apertured at 29 to display a number on discs 23 indicating the number of games won. A numeral is also displayed on each member 22 by moving a mask 34. The disc 23 is rotatable by a knob 24 and is justified. The name boards 16 and the discs 23 are visible from both sides of the apparatus. Specification 463,648 is referred to.
Patent GB-392153-A (GB)
Title: Improvement relating to deck and like chairs or seats
IPC: A47C4/30
Filed: 1931-11-09
Abstract: 392,153. Seat bottoms. EYLES, A. G., 15, Fernbank Crescent, Folkestone. Nov. 9, 1931, No. 31014. [Class 52 (ii).] A deck chair or like seat has affixed to its frame a metal cylindrical casing 1 mounted by means of two end caps 2, 3 to the upper end of the back 4. The spring roller 10, upon which the fabric of the seat is wound, is intro- .duced into the cylinder through the opening 8 and mounted upon the round and rectangular bearings 11 and 13 respectively. A slide is introduced through a slot in the end caps and partially closes the opening 8. The canvas may be withdrawn from the roller and secured by the rod 19 in hooks on the front of the chair, a check rod 17 engaging the inside of the casing and taking the weight off the spring roller.
Patent GB-914460-A (GB)
Title: Organosiloxane compounds
IPC: C07F7/08
Filed: 1961-08-29
Abstract: The invention comprises siloxanes of the formula (R3SiO)3 Si Ch2 Ch2-n(CH3)n CH2 NH CH2 CH2 NH2-(1) and acid salts thereof, where R is a monovalent hydrocarbon or halo- or cyanosubstituted hydrocarbon radical and n is 0 or 1.  The free amines are prepared by reacting chloroalkyl siloxanes (R3SiO)3 Si CH2 CH2-n(CH3)nCH2Cl -(2) with ethylene diamine.  The salts are prepared by contacting the siloxane with an organic or inorganic, mono-, di- or poly-basic acid.  A partial salt may also be prepared.  The examples describe the preparation of compounds of formula (1) where R3 is Me3 and n is 0, R3 is Me3 and n is 1, R3 is Me2Ph, Me2Vi, EtPhVi and PhVi2 and n is 0, and the salts of the first of these compounds with acetic, hydrochloric, hydrobromic, nitric, sulphuric, formic, propanoic, malic, adipic, trifluoroacetic and isophthalic acids.  The chloroalkyl-siloxanes (formula 2) are prepared by mixing Cl3 Si CH2 CH2-n (Me)n CH2Cl with R3 Si Cl in mol. ratio of 1:3, alkoxylating the mixture and hydrolysing.  Uses: treating glass and textiles to improve adhesion to dyes, pigments and resins, and to wet and size them; emulsifying and dispersing agents; and curing agents for epoxy resins.ALSO:Polyaminoalkyl substituted organosiloxanes of the formula (R3SiO)3SiCH2CH2-n(CH3)n CH2NHCH2CH2NH2 and acid salts thereof, where R is a monovalent hydrocarbon or halo- or cyano-substitituted hydrocarbon radical and n is 0 or 1, are used for treating glass and fibres of polyamides, acetate, and acrylic, polyester, vinyl formal, olefin and other vinyl resins. The treatment improves the adhesion of resins, dyes and pigments to the fibres, and improves the wettability of glass after being rendered water-repellent.  The compounds also act as sizes and as lubricants on glass cloth filaments.
Patent GB-931572-A (GB)
Title: A magnetron device for the measurement of low pressures
IPC: H01J41/06
Filed: 1961-08-29
Abstract: 931,572. Ionization gauges. NATIONAL RESEARCH COUNCIL. Aug. 29, 1961 [Aug. 29, 1960], No. 31141/61. Addition to 890,920. Class 39 (1). In a magnetron-type ionization gauge the shields for preventing field emission are cylindrical auxiliary electrodes 44, 45 projecting between the anode coating 10 and the flanges 12, 13 on the cathode 11.
Patent GB-155452-A (GB)
Title: Improvements in reamers
IPC: B23D77/00
Filed: 1919-12-12
Abstract: 155,452. Clare, C. H., and Heaton, J. Dec. 12, 1919. Reamers.-A reamer has two or more spiral grooves a with the upper sides inclined to,_ and the lower sides at right-angles to the axis of the tool, forming end cutting points a<3>. After the cutter is worn, it is ground off for a short length from the end, and new cutting-points are formed at its end. Vertical chip-clearing and lubricating grooves b may intersect the spiral grooves. The grooved body forms a steady for the tool in use. Specifications 11577/85 and 23554/04 are referred to.
Patent GB-833894-A (GB)
Title: Selenium rectifier
IPC: H01L21/10
Filed: 1957-10-04
Abstract: A selenium rectifier (see Group XXXVI) is formed by simultaneous evaporation on to a base plate of gallium and halogenated selenium from separate evaporators.  The gallium content in various parts of the layer may be controlled by temporarily switching on and off the heating of the gallium evaporator.  In one embodiment a bismuth layer may be evaporated on to the base plate before the selenium layer. Alternatively a thin layer of selenium is deposited on to a nickel coated iron base plate and heated to 300 DEG C. to form a selenide layer on which the selenium layer is deposited.  The gallium content may decrease progressively from the base plate outwards or a thin layer containing gallium may be sandwiched between two gallium free layers.