baber/WOPTO huggingface dataset:
Patent GB-703438-A (GB)
Title: Improvements in and relating to electric control circuits using saturable reactors
IPC: G05F1/00
Filed: 1951-05-29
Abstract: 703,438. Control of motors. BRITISH THOMSON-HOUSTON CO., Ltd. May 29, 1951 [June 17, 1950], No. 12566/51. Class 38(3) [Also in Groups XXXV, XXXVIII and XXXIX] Directional control of a motor is effected by the polarity of a D.C. signal applied to the control windings 17, 18 of a pushpull magnetic amplifier (see Group XXXIX). As shown in Fig. 1, a D.C. motor 10 has split field windings Z1, Z2 each connected in series with a pair of reactance windings 13, 16 and 14, 15 through rectifiers - 19-22. Unequal saturation of the magnetic cores 11, 12 due to a control signal then produces a resultant field in the form of unidirectional flux pulses having a direction determined by the signal polarity. In a second embodiment, Fig. 5, a two phase A.C. motor has split field windings Z7, Z8 connected in series with reactance windings 13, 14 and 15, 16 respectively. An alternating resultant flux is produced by the field windings when a D.C. control signal is received, the phase of the flux with respect to the A.C. supply determining the direction of motor rotation.
Patent GB-1063832-A (GB)
Title: A process for the recovery of -a-10-camphorsulfonic acid
IPC: C07C309/25
Filed: 1964-03-25
Abstract: A purified concentrated aqueous solution of d-10-camphorsulphonic acid is prepared from its (impure) dilute solution by extracting with a neutral immiscible organic solvent with added amine*, separating the organic phase and back-extracting with a lesser volume of water at pH at least 9, this second aqueous phase being separated and then acidified.  In the example, the process is applied to the mother-liquor obtained in the resolution of 2-phenylglycine with the sulphonic acid.  The amine* has formula R-NH-CR13, in which R is a C10- 14 aliphatic group and the three R1 groups are each aliphatic hydrocarbon radicals totalling 11-14 C atoms.
Patent GB-1124866-A (GB)
Title: Water-insoluble styryl dyestuffs and processes for their manufacture
IPC: C09B23/14
Filed: 1967-03-17
Abstract: Water-insoluble styryl dyes of the formula <FORM:1124866/C4-C5/1> in which R2 is a pyridylalkyl, a pyridylalkylaminoalkyl or a pyridylalkoxyalkyl residue, R2 is an alkyl group which may be substituted, X is a cyano, carboxylic acid ester, alkyl, aralkyl or arylsulphonyl group or a group of the formula CONR4R5 in which R4 and R5 are hydrogen or an alkyl or aralkyl group and Y1 and Y2 are each hydrogen or halogen atoms or an alkyl or alkoxy group are prepared by (a) condensing an aldehyde of formula <FORM:1124866/C4-C5/2> the symbols being as above with malodinitrile, a cyanoacetic acid alkyl ester, an alkyl, aralkyl, or arylsulphonylacetonitrile or with a cyanoacetic acid amide, or (b) a styryl derivative of formula <FORM:1124866/C4-C5/3> in which R2,X,Y1 and Y2 are as above and Z is hydrogen or an hydroxyalkyl group is reacted with a vinylpyridine. Preferably the condensation process (a) is effected by heating in a solvent in presence of a basic catalyst and process (b) is effected in presence of basic or acid catalysts.  The dyes give yellow shades on polyacrylonitrile material.ALSO:In Examples 1, 2 and 3, 2-(21-N-methylanilinoethyl) - pyridine, 3 - (21 - N - methylanilinoethyl) - 6 - methylpyridine and the benzoyl ester of N-(21-hydroxyethyl)-N-211-2111 -pyridylethyl-1-3-toluidine are heated with phosphorus oxychloride in dimethylformamide at 60 DEG  C., followed by dilution to give the p-aldehydes. In Example 3, N-(21-hydroxyethyl) - N - 211 - 2111 - pyridylethyl - 1,3 - toluidine is prepared from 2-vinylpyridine and N-(21 - hydroxyethyl) - 1 - 3 - toluidine, the product being esterified with benzoyl chloride.
Patent GB-418420-A (GB)
Title: Device for achieving uniform draught in funnels with two opposed rotors
IPC: F23L13/00
Filed: 1934-04-27
Abstract: 418,420. Funnels. GOLLNER, R., 46, Adolf Hitlerstrasse, Burg, near Magdeburg, Germany. April 27, 1934, No. 12741. Convention date, April 29, 1933. [Class 26.] A device compris. ing two opposed fans or rotors 1 and 3 foi obtaining a uniform draught in funnels is provided, in addition to the main support. ing bearings 5, 6 and 8 above the upper fan with another bearing 9 adjacent the lower fan and supported from the wall of the funnel and supplied with lubricant from a common supply pipe 13 at the top of the upper bearings. through a central bore 14 in the shaft 2 of the lower fan. The upper fan is mounted on a hollow shaft 4 resting in bearings 5 and 6 and surrounding the shaft 2 which rests in the upper bearing 8 and lower bearing 9, the latter being supported from the funnel walls by rods 10. A protective tube 12 is provided to prevent the spreading of oil. When used for the funnels of locomotives and the like, the cross section of the upper end of the exhaust steam pipe is reduced in order to increase the velocity of flow and therefore the speed of the fans the latter giving a more uniform draught and preventing the emission of sparks.
Patent GB-398948-A (GB)
Title: Improvements in or relating to the starting of internal combustion engines
IPC: F02N99/00
Filed: 1932-05-03
Abstract: 398,948. Turning-gear. COLLINS, D., Salisbury, North Carolina, U.S.A. May 3, 1932, No. 12782. [Class 7 (v).] An accelerator pedal or equivalent throttle element is mechanically connected to a control element of the starting motor when the engine is not running, while the connection is disabled when the engine is running, so that the accelerator pedal &c. can then be actuated without affecting the starting motor. As shown in Fig. 3, the accelerator pedal 8 is mounted on a rock shaft 7 provided at one end with a crank arm connected to the carburetter throttle and at the other end with an arm 19 pivotally connected to a rod 23, which operates the switch lever 36 of the starting motor through a coupling member 45. The switch lever is pivoted at 37 in a housing 27 on the starting motor 29 and carries non-conducting rollers 38 adapted to project through a slot in a sheet 31 of insulating material and to move a spring contact 34 into engagement with a contact 35. The coupling member 45 is provided with a suction-operated plunger 49 and is connected by a pipe 50 to the engine intake manifold, so that the plunger 49 is lifted out of the path of the rod 23 when the engine is running, and so prevents the actuation of the starter switch by the movements of the accelerator pedal. In a modification, Figs. 8 and 9, the connection between the accelerator pedal 8a and the switch lever 36a comprises an arm 19a, a rod 23a, and a coupling member 54 pivoted at 55 on the switch lever. The upper end of the member 54 is connected to the engine inlet manifold by a conduit 50a and a suctionactuated plunger 52 in the member 54 engages a shoulder 51 on the switch lever when the engine is not running. In another form, Fig. 11, the rod 23b extends through a slot 62 in the switch lever 36b and is provided with a shoulder 60 for engagement by a suctioncontrolled plunger 61 in the upper end of the switch lever. The throttle is partly opened before the shoulder 60 engages the plunger 61, so that a limited supply of fuel is admitted to the engine during operation of the starter.
Patent GB-859665-A (GB)
Title: Railroad journal bearing
IPC: B61F15/16
Filed: 1958-04-23
Abstract: 859,665. Bearings; lubricating. CLEVITE CORPORATION. April 23, 1958 [May 8, 1957], No. 12879/58. Drawings to Specification. Classes 12 (1) and 12 (3). [Also in Group XXVI] The subject-matter of this Specification is identical with that described in Specification 859,666 but the claims are concerned with the oil-sealing means (see Group XXVI).
Patent GB-1338113-A (GB)
Title: Radiation-sensitive photographic films
IPC: C08L71/12
Filed: 1971-05-04
Abstract: 1338113 Radiation sensitive films EASTMAN KODAK CO 4 May 1971 [4 May 1970] 12908/71 Addition to 1250206 Heading G2C [Also in Division B5] A radiation-sensitive film, e.g. a photographic light-sensitive silver halide film, has a support consisting of a polyphenylene oxide having repeating units of the formula:- wherein each R is hydrogen, methyl or ethyl, a degree of polymerization of at least 100 and an average molecular weight of at least 20, 000, said film support having been cast from chloroform dope and containing less than 6 per cent by weight of residual chloroform. A subbing layer between the film support and a gelatino silver halide emulsion layer may comprise vinylidene chloride, methyl meth acrylate and itaconic acid.
Patent GB-1100230-A (GB)
Title: Epoxy curing systems and protective coating compositions
IPC: B05D7/14
Filed: 1965-03-26
Abstract: Curable epoxy resin compositions contain as curing agent a complex of one of the formulae <FORM:1100230/C3/1> <FORM:1100230/C3/2> <FORM:1100230/C3/3> and mixtures thereof, wherein each pair of O1, O11 or O111 oxygen atoms is attached to a pair of carbon atoms of an aromatic ring which are ortho to each other, Z is a monovalent radical attached to the silicon atom via a Si-C bond, Q is a divalent radical attached to each silicon atom via a Si-C bond, A is a cation formed from an amine, ammonia or hydrazine, or is a quaternary ammonium cation, n is an integer not greater than the valency of A, E is an unprotonated amine, ammonia, ammonium hydroxide or a quaternary ammonium compound, m is O or an integer and the ratio of anions to cations in (A) and (C) is such that there is an equal number of positive and negative charges in the complex.  the complexes used as curing agents are those described in Specifications 1,077,925 and 1,077,939.  The compositions may also contain a polycarboxylic anhydride curing agent when the complex functions as an accelerator, fillers, solvents, flow control agents, dyes, pigments, plasticizers and modifying or extending resins.  The compositions are used for coating moulding and encapsulating.ALSO:Surfaces are coated with curable epoxy resin compositions containing as curing agents a complex of one of the formulae <FORM:1100230/B1-B2/1> <FORM:1100230/B1-B2/2> <FORM:1100230/B1-B2/3> and mixtures thereof, wherein each pair of O\sv, O\yF or O\yG oxygen atoms is attached to a pair of carbon atoms of an aromatic ring which are ortho to each other, Z is a monovalent radical attached to the silicon atom via an Si-C bond, Q is a divalent radical attached to each silicon atom via an Si-C bond, A is a cation from an amine, ammonia or hydrazine or is a quaternary ammonium cation, n is an integer not greater than the valence of A, E is an unprotonated amine, ammonia, ammonium hydroxide or a quaternary ammonium compound, m is O or an integer and the ratio of anions to cations in (1) and (3) gives the complex electrical neutrality, and optionally polycarboxylic anhydride curing agents, fillers, pigments and flow control agents.  In examples nylon and glass cloths are precoated with epoxy resin solution, air dried, then coated by dipping in a liquid bed of a composition of solid epoxy resin, anhydride curing agent and complex curing agent and heated in a 150 DEG C oven for 10 sec. to give a supported epoxy adhesive.  In another example a pulverulent coating composition of the invention is applied to a pipe by passing the heated pipe through a cloud of the composition.
Patent GB-582600-A (GB)
Title: Improvements to driving gear for chain drawbenches
IPC: B21C1/30
Filed: 1944-07-08
Abstract: 582,600. Shaft couplings. LABAN, W. H., and MERCER, G. H. July 8, 1944, No. 13083. [Class 80 (ii)] A shock absorbing drive for a drawbench driving gear comprises a shaft 20 which drives a chain sprocket 14 through an intermediate member 27 which is in screw-threaded engagement with the shaft 20 and splined engagement with a hollow shaft 15 carrying the sprocket 14. Axial movement of the member 27 is resisted by a spring 30, which is housed within the shaft 20 and is adjustable by a screw 32, to give a resilient drive. The axial movement of the member 27 is limited by its end 38 coming up against the end of shaft 20 and. further resistance to this movement is provided by hydraulic resistance of oil, contained within the space between these two members, which has to escape through an opening 45 and a sleeve 46 controlled by a pin 50. The pin 50 is tapered so that the hydraulic resistance - progressively increases as the member 27 moves to the right. An oil container 42 is provided to maintain this hydraulic action. In a modified arrangement the intermediate member can move axially against spring pressure on the driving member and is provided with axial cam teeth engaging with corresponding teeth on the driven member. The intermediate member is also formed as a piston which moves in a tapered bore in the driving member which provides progressively increasing hydraulic resistance by the passage of oil from one side to the other.
Patent GB-131354-A (GB)
IPC: B64C13/24
Abstract: 131,354. Constantinesco, G. May 9, 1918. Mountings.-Consists in providing a controlling. device, suitable for training guns and other uses, with a controlling-handle and a controlled member carrying cylinders and plungers abutting against fixed surfaces, valve ports being provided so that movement of the handle causes loss of pressure in some of 'the cylinders and actuation of the controlled member. Fig. 1 shows a control handle a for aircraft mounted with slight movement within a spherical bearing b carrying the arm d connected to the control wires. A passage l in the handle is connected to a pump supplying high-pressure liquid, and communicates with a port m leading to an annular groove n, which normally communicates with a series of ports k leading to cylinders f having pistons g bearing against a fixed frame h. Another annular groove q normally communicates with ports o leading to a sumpp in communication with the suction side of the pump. When the handle is moved in any direction, the cylinder f at one side is cut off from the supply and connected by the groove q to the sump p. If the pump pressure fails, direct hand operation is obtained by contact of the handle with the part c of the bearing b. The handle is provided with a cylindrical bearing when movements in one plane only are required.
Patent GB-1299101-A (GB)
Title: Improvements in and relating to a method of, and a device for, cutting material
Inventor: GLASTRA HENDRIK
IPC: B26F1/38
Filed: 1970-03-19
Abstract: 1299101 Cutting flat material MAATSCHAPPIJ VOOR INDUSTRIELE RESEARCH EN ONTWIKKELING NV 19 March 1970 13177/70 Heading B4B A device for cutting flat material 8, Fig. 2 comprises a planar support 7 for the material, and a loop of wire 1 of substantially triangular cross-section, part of which wire passes through the support, is substantially perpendicular thereto, rotatable about its axis, and movable transversely of the plane of the support for following a particular pattern of material to be cut. The wire is guided by rollers 11, 14 on each side of the support and is drivable axially through a guide member 19 disposed between the rollers. The guide member is drivable to cause it and the wire passing therethrough to perform a limited angular movement about the axis of the wire. As described, the wire 1 is of equilateral triangular cross-section and its ends are joined after twisting through 120 degrees to form the loop, which is driven by a roller 12 in a frame 10. The guide member 19, Fig. 4, comprises guide rollers 22a, 22b, 22c arranged to engage the three faces of the wire and supported in holders 23a, 23b, 23c mounted by means of resilient pins 26 on a carrier 27 which is oscillatable by an eccentric driven by a motor in a housing 20 on the frame 10. A further guide device may be present below the support 7. The wire is directed along a pattern to be cut by a photo-electric scanning arrangement and is guided so that instead of rotating the wire about its axis through an angle of more than 60 degrees to follow the pattern a different cutting edge of the wire is presented to the material.
Patent GB-787452-A (GB)
Title: Improvements in vulcanization accelerators
IPC: C08K5/00
Filed: 1956-04-30
Abstract: The invention comprises N-(thiocarbamythio) - 2 - benzothiazolesulphenamides of the formula <FORM:0787452/IV (b)/1> wherein R, R1 and R11 are hydrogen, alkyl, cycloalkyl or aralkyl radicals, or R1 and R11 together with the nitrogen atom to which they are attached represent a saturated monocyclic residue.  R, R1 and R11 may be methyl, ethyl, n-propyl, isopropyl, n-butyl, sec.-butyl, tert.-butyl, n-amyl, 2-ethylhexyl, cyclohexyl, methylcyclohexyl, benzyl and/or b -phenethyl, and R1 and R11 taken together may be pentamethylene and oxydiethylene.  The compounds are prepared by reacting an S-(thiocarbamyl)-hydrosulphamine of the formula <FORM:0787452/IV (b)/2> with 2 - benzothiazolesulphenyl chloride in the presence of a tertiary aliphatic amine.  Specified tertiary amines are triethylamine, tripropylamine, tributylamine, triamylamine and N-methylmorpholine.  The examples describe the preparation of N-ethyl-N1-(dimethylthiocarbamylthio)-, N - methyl - N1 - (dimethylthiocarbamylthio) -, N - isopropyl - N1 - (dimethylthiocarbamylthio) -, N - tert. - butyl-N1 - (dimethylthiocarbamylthio) -, N - cyclohexyl - N1 - (diethylthiocarbamylthio) - and N - cyclohexyl - N1 - (oxydiethylenethiocarbamylthio) - 2 - benzothiazolesulphenamides. Specification 536,514 is referred to.ALSO:N - (Thiocarbamylthio) - 2 - benzothiazolesulphenamides of the formula: <FORM:0787452/IV (a)/1> wherein R, R1 and R11 are hydrogen, alkyl, cycloalkyl or aralkyl radicals, or R1 and R11 together with the nitrogen atom to which they are attached represent a saturated monocyclic residue, are used to accelerate the vulcanization of synthetic rubbers derived from polybutadiene, polyisoprene, copolymers of 1:3-butadiene with styrene or acrylonitrile and copolymers of isobutylene and a diolefin. Examplified benzothiazole derivatives are N-ethyl-N1-(dimethylthiocarbamylthio) -, N - methyl - N1 - (dimethylthiocarbamylthio) -, N - isopropyl - N1-(dimethylthiocarbamylthio) -, N - tert. - butyl-N1 - (dimethylthiocarbamylthio) -, N - cyclohexyl - N1 - (oxydiethylenethiocarbamylthio)-thio) - 2 - benzothiazolesulphenamides.  Specification 536,514 is referred to.ALSO:N-(Thiocarbamylthio) - 2 - benzothiazole - sulphenamides of the formula: <FORM:0787452/V/1> wherein R, R1 and R11 are hydrogen, alkyl, cycloalkyl or aralkyl radicals, or R1 and R11 together with the nitrogen atom to which they are attached represent a saturated monocyclic residue, are used to accelerate the vulcanization of smoked rubber sheet.  Exemplified accelerators are: N - ethyl - N1 - (dimethylthiocarbamylthio)-N-methyl - N1 - (dimethylthiocarbamylthio) -, N-isopropyl-N1-(dimethylthiocarbamylthio)-, N - tert. - butyl - N1 - (dimethylthiocarbamylthio)-, N - cyclohexyl - N1 - (oxydiethylenethiocarbamylthio) - and N - cyclohexyl - N1 - (diethylthiocarbamylthio) - 2 - benzothi azolesulphenamides.  Other components such as super abrasion furnace black, zinc oxide, zinc salts of coconut oil acids, pine tar, antioxidants and sulphur may be incorporated in the rubber mix.  Specification 536,514 [Group IV] is referred to.
Patent GB-195882-A (GB)
Title: Improvements in clinical thermometers
IPC: G01K5/06
Filed: 1922-05-10
Abstract: 195,882. Quinlan, E. J. May 10, 1922. No Patent granted (Sealing fee not paid). Thermometers.- In a clinical thermometer in wluch resetting is facilitated by providing an enlargement a in the capillary tube, the lower end of the enlargement is pressed in at one part so as almost to close the bore of the tube at this point and to trap some of the mercury in the enlarged part.
Patent GB-1384976-A (GB)
Title: Apparatus and method for metering particles
IPC: G06M7/00
Filed: 1973-03-20
Abstract: 1384976 Seed sowers RESEARCH CORP 20 March 1973 [5 April 1972] 13220/73 Heading A1D [Also in Divisions B8 and F1] A particle metering system comprises a system of fluid jets causing a circulating flow of particles about a circulation passage and at intervals stopping the circulation while retaining a single particle in a part of the passage, said single particle then being ejected along an ejection passage by means of a fluid jet. In the figure, seeds are stored in chamber 16 and circulated by air flow around passage 20b, 20a, 20c. At intervals, air jet 32 is operated to stop circulation, a single seed is retained at 20g by balance of air pressures and this seed is then ejected for sowing by operation of air jet 34.
Patent GB-1173786-A (GB)
Title: Bale Ties
IPC: B65D63/04
Filed: 1967-03-21
Abstract: 1,173,786. Bale ties. TITAN EISENWARENFABRIK G.m.b.H. 21 March, 1967 [31 March, 1966], No. 13275/67. Heading E2B. In a bale tie comprising a metal strap, the ends 10 and 11 of which are formed with pairs of stepped incisions 15, the central web 16 between each pair of incisions being bent out of the plane of the tie so that the webs 16 of one end are engageable between the incisions of the Other when the ends are superimposed, either the webs 16 of one end 10 are formed with lateral projections 19 at their wider ends and/or the other end 11 has its side webs 17 (i.e. the portions between each incision and the adjacent longitudinal edge of the tie) formed at their wider ends with projections 19, so that the webs 16 of one end have to be snapped between the incisions of the other to fasten the tie. Projections 19 may be arcuate in form. The side webs 17 are also bent out of the plane of the tie to lie on the opposite side of this plane to the webs 16. The webs 16 may be bent so that each is formed with a transversely extending ridge.
Patent GB-798522-A (GB)
Title: Improvements in or relating to ultra-high frequency velocity-modulated oscillator circuits
Inventor: WILLETT ROBIN REX
IPC: H03C3/30
Filed: 1955-05-09
Abstract: 798,522. Automatic electric control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 8, 1956 [May 9, 1955], No. 13299/55. Class 38 (4). A velocity modulation valve oscillator 2, e.g. reflex klystron, is frequency-modulated by a modulation voltage at terminal 1 applied to a reflector or other electrode, and the amplitude of its output is also detected at 14 and applied together with the modulation voltage to a phasesensitive rectifier 17 to derive a D.C. control voltage of variable magnitude and polarity which may be added on to the modulation electrode H.T. voltage to stabilize the modulation electrode voltage at the value corresponding to maximum power output, and also the mean frequency of the frequency modulated output. The detected amplitude variation may be amplified at 15 and phase split at 16, before application with the modulation voltage to the phase-sensitive rectifier 17. In a modification the modulation is a negative feedback frequency control voltage applied to the reflector electrode of a reflex klystron local oscillator in a receiver and obtained from a frequency discriminator tuned to the intermediate frequency and also deriving the output of the receiver, stabilization of the mean frequency and maximum power output of the local oscillator being obtained in the same way as for the transmitter oscillator.,
Patent GB-408815-A (GB)
Title: Process and device for twisting at a high torsion, in a single operation, any kind of yarn on twisting frames in which the torsion is imparted by the unwinding bobbin
IPC: B65H57/20
Filed: 1933-05-08
Abstract: 408,815. Twisting yarns. CASTELLI, E., 11, Via Prudenziana, Como, Italy. May 8, 1933, No. 13344. Convention date, May 7, 1932. [Class 120 (ii).] In order to prevent the twist from running back to the bobbin in high twist frames, an elongated spindle cap C is coaxially and loosely mounted on the spindle A on which the unwinding bobbin is fixed, said cap having two sets of thread guides E, E<1> and F<1> disposed at different levels, the yarn from the bobbin passing from the lower level thread guide E, round the portion C, to the upper guide F<1>, and thence to the receiving bobbin D.