baber/WOPTO huggingface dataset:
Patent GB-463326-A (GB)
Title: Improvements in or relating to automatic regulators
IPC: G05B5/04
Filed: 1935-09-25
Abstract: 463,326. Fluid-pressure servomotorcontrol systems. ELECTROFLO METERS CO., Ltd. (Dunglinson, B.) Sept. 25, 1935, No. 26551. '[Class 135] An automatic regulator especially adapted for controlling the pressure or supply of fluids of the kind in which a regulating valve is actuated by a power piston under the control of a relay valve itself controlled by a control valve actuated by means sensitive to the controlling variable, has antihunting means comprising a dashpot and loading-spring arranged between the actuator of the relay valve and the sensitive device, and a floating lever between the relay valve and power piston. The Figure shows the invention applied to a flow regulator. The sensitive device consists of a flexible diaphragm 60 subject on its opposite faces to the pressures on the two sides of the orifice in a metering plate in the main conduit. A spindle 62 secured to the diaphragm carries a yoke 66 having pointed set-screws 68 engaging a lever 70 supported by a flexible strap 72 carried by an adjustable member 74. One end of the lever is adjustably loaded by a spring 78, while the other end engages the spindle 82 of the control valve. This valve controls the outflow from the space below a differential piston 94, said space being supplied with pressure fluid through a restricted orifice 96 and housing a stop 92 to limit the downward movement of the piston. The piston is coupled by a floating lever 38 on the one hand to a piston relay valve 120 which controls the supply and exhaust of pressure fluid to and from the two sides of the power piston 122 and on the other to a link secured'to a crosshead fixed to the piston rod 14 of the power device. The rod 14 is coupled by a link and crank-arm to a butterfly regulating valve in the main conduit. The part of the differential piston of smaller diameter is made hollow to form a dashpot cylinder housing a piston having a byepass adjusted by a needle valve. The needle valve is made hollow to provide a guide socket for a spindle secured to the yoke 66 and carries an abutment for a loading spring 110 bearing at the other end against an abutment carried by the yoke 66. In operation this spring is tensioned by the regulating action of the relay valve actuator so as to anticipate the response of the apparatus being regulated, the tension of the spring gradually fading out as the dashpot yields and as the anticipated response builds up. In a modification the power cylinder is coupled through belt gearing to a sliding damper and is arranged at a point remote from the controller, the follower up connection to the floating lever being made by flexible cables working over a differential drum.
Patent GB-1475416-A (GB)
Title: Arrangement for recognising and blanking out spurious signals in the receiving branch of an interrogator
IPC: B61L25/04
Filed: 1974-06-14
Abstract: 1475416 Interrogator-responder systems SIEMENS AG 14 June 1974 [26 June 1973] 26583/74 Heading H4L An arrangement for blanking out spurious signals is provided in the interrogator of an interrogator-responder system of the type in which a swept band of frequencies is transmitted to the responder; from which a predetermined number of response frequencies is returned. The interrogator incorporates arrangements for identifying miscoded received response frequencies and for identifying dissimilar successively received sets of response frequencies which should be the same. These arrangements, however, will not necessarily detect errors caused by a single frequency source of interference within the sweep range. To provide for this, the receiving channel of the interrogator incorporates a mixer 82, I.F. filter 83 and amplifier 84, whose output is applied to two parallel channels 9, 11, the first including a band pass filter 91, reactifier-amplifier 92 and impulse former 93. The second similarly includes a band pass filter 111 rectifier-amplifier 112 and impulse former 113, which is followed by a counter 12 which is reset when a monostable 121 returns to its normal condition. The monostable is set to its stable condition each time a pulse output from 113 is applied to the counter, thus if pulses appear more rapidly than the delay of the monostable, the counter will keep counting. When a particular count is reached (e.g. 3), indicating the presence of spurious signals a pulse is applied to the gate 14 to prevent the pulses from the first channel (which may be delayed at 15 to allow time for the counting operation) passing to the interrogator output. It is explained that a steady interference source will produce a number of interference pulses at the output of channel 2, much closer together than coded responder pulses, since the interference is received continuously and beats with the sweep frequency (mixer 82) to produce a variable frequency ringing.
Patent GB-1074662-A (GB)
Title: Method and apparatus for treating thermoplastic plastics sheet to be differential pressure formed
IPC: B29C51/26
Filed: 1965-06-23
Abstract: 1,074,662. Sheet forming. BROWN MACHINE CO. OF MICHIGAN Inc. June 23, 1965 [July 24, 1964], No. 26589/65. Heading BSA. [Also in Divisions B8, D1 and F4] In a sheet forming machine in which the sheet material is intermittently fed through a heating oven and then to a forming station by an edge engaging conveyer, the widthwise expansion of the sheet during its passage through the oven is taken up so as to prevent sagging by providing the edge gripping means of the conveyer with a divergent path through the oven. The conveyer comprises two endless chains 37, the links of which carry upstanding pins 40 against which the edges of the sheet 18 are pressed by cooled plates 28 (see Fig. 3, not shown). The chains first run parallel and then diverge in the region of the heater and then run parallel again through the forming station, the degree of divergence being adjustable.
Patent GB-1129373-A (GB)
Title: Digital data signal transmission system
IPC: H04L23/02
Filed: 1966-06-15
Abstract: 1,129,373. Multiplex system. INTERNATIONAL BUSINESS MACHINES CORP. 15 June, 1966 [22 June, 1965], No. 26606/66. Heading H4R. A multiplex system uses as the individual channel signals selected harmonically related signals from a set of harmonically related signals, the selected signals being multiplied together and gated on for a specified duration. The signals may be of the form where k and m are different integers and r and s are equal to 0 or 1. Transmitter, Fig. 2, may include a frequency synthesizer 10 which generates a number of phase locked sinusoidal waves with selected pairs of the sinusoidal waves being coupled to multipliers to form, in the example shown, four channel signals. Gating signals are applied to the multipliers so that the outputs of the multipliers are fed out to the line 39 in accordance with the information to be transmitted. The information may be transmitted as four digital streams in either serial or parallel form. Preferably the gating of the multipliers is arranged to be phased with the fundamental frequency of the frequency synthesizer so that all the product waveforms begin and end on the zero axis. Receiver, Fig. 3.-Similar phase locked sinusoidal waves may be generated at the receiver and similar pairs selected as at the transmitter and multiplied by the incoming signal to be fed to the integrators 61-64. Only if the incoming signal contains a similar product signal to that which is provided by the inputs from the frequency synthesizer to the respective multiplier 41 to 44 will the output from the integrator be finite. The integrator outputs are therefore supplied to a decision device to decide the largest output to energize one of lines 81 to 84 accordingly. A composite extractor 60 synchronizes the frequency synthesizer and decision device to the incoming signal. In an alternative receiver, Fig. 4 (not shown), for dealing with parallel data transmission a threshold device is provided on the output of each integrator to decide which outputs correspond to digits being transmitted in a channel. The frequency synthesizer shown in the transmitter of Fig. 2 generating sin and cos functions of a fundamental and up to the fourth harmonic is said to provide 8 subsets each providing 4 orthogonal waveforms. A system may therefore be provided where each subset provides a 4-digit information signal whilst the choice of one out of the eight subsets is equivalent to a further 3 digits of information.
Patent GB-483632-A (GB)
Title: Improvements in or connected with steam boilers with internal furnace flues
IPC: F22B7/00
Filed: 1937-10-02
Abstract: 483,632. Lancashire and like cylindrical boilers. WENZL, R. Oct. 2, 1937, No. 26688. Convention date, Oct. 6, 1936. [Class 123 (ii)] The upper part, comprising two-thirds, of the circumference of a shell-type boiler with one or more internal furnace flues 2 constituting the sole internal heating surface is protected by insulating covering 15, an external flue being provided under the remaining lower part of the shell. A partition 6 may divide this flue into forward and return passages and may continue upwardly at the rear so that gases from the internal flue ascend over a superheater 4, and descend on the other side of the partition to one of the lower flue passages, thence returning by the other to a preheater 10. Valves 5, 12 provide for byepassing of the superheater and preheater. The insulation 15 is covered by sheet metal which extends down to the external flue brickwork preferably to the base.
Patent GB-185340-A (GB)
Title: Improvements in portable heating stoves particularly adapted for oil vapour burners
IPC: F24C5/02
Filed: 1921-10-10
Abstract: 185,340. Morecroft, F. Oct. 10, 1921. Oil stove ; baffles.-A heating-stove, particularly adapted for the employment of oil vapour burners, comprises a cylindrical casing a pro. vided with holes c near the top and with an opening e in the side wall to receive an oilstove f of the wicllessburner type. Two interfitting conical baffles h, i are arranged above the burner, the former being secured to the casing and the latter being supported from the baffle h bv means of distancepieces j. A spring clip g is provided on the inner side of the casing a to grip detachably one of the vertical arms f<1> of the stove and so maintain the latter firmly in position.
Patent GB-1472899-A (GB)
Title: Transistor control circuits
IPC: H03G3/30
Filed: 1974-06-17
Abstract: 1472899 Transistor gain control circuits SONY CORP 17 June 1974 [20 June 1973] 26762/74 Heading H3T [Also in Division G4] A transistor control circuit comprises four transistors effectively interconnected substantially as shown in Fig. 2. If I 1 -I 4  are the currents from A 1 -A 4  respectively I 4  = (I 1  x I 2 )/I 3 . In a gain control circuit current I 1  is derived from resistors R 2  R 3  (Fig. 4) and a signal source S while the gain is varied by the current source A 2  comprising a "current mirror" and variable bias source E 1 : the current source A 3  likewise comprises a "current mirror". The signal and gain controlling bias sources may be interchanged (Fig. 5 not shown). In a modification of this the first current source comprises a transistor (Q 11  Fig. 6 not shown) with variable base bias. In Fig. 7 transistor Q 1  receives collector current via resistor R9 and gain is varied by means of source E 1  which varies the emitter potential of transistors Q 1  Q 4 . The current sources A 2  A 3  comprises transistors Q 12 , Q 13  respectively biased respectively from signal source S and fixed source E 2 . In a modification of this arrangement (Fig. 8 not shown) the first and fourth transistors receive a fixed emitter bias and the current sources A 2 , A 3  respectively receive a fixed and gain-controlling variable bias. The signal is applied to the bases of the second and third transistors via an auxiliary transistor (Q 14 ). In a further modification a fixed resistor (R 14  Fig. 9 not shown) supplies collector current to the first transistor and the second current source A 2  comprises a "current mirror" receiving the signal to be amplified as its input. In an arrangement particularly suitable for a multiplier two circuits are arranged to provide balanced inputs and a parallel output (Fig. 10 not shown).
Patent GB-838272-A (GB)
Title: Steering device for tractor-drawn machines and agricultural implements
IPC: A01B69/00
Filed: 1958-08-21
Abstract: 838,272. Agricultural implements. CHRISTENSEN, P. Aug. 21, 1958 [Aug. 26, 1957], No. 26849/58. Class 6(1). Means are provided at the front of a tractor to produce a track 13 in the soil in which runs a steering means of an implement connected to the tractor so that the implement will follow the path of the tractor. As shown a share 12 is provided and a wheel 8 runs in the track 13 formed by the share. A pointer 19 is provided and is kept exactly above the middle of one of the rows of plants 11 so that the share 12 will produce the track 13 midway between the two rows of plants 11 so that the cultivator will then follow the rows of plants. The share 12 may be replaced with a V-shaped guide runner or a guide wheel formed with a V-shaped rim. The wheel 8 may be replaced by a wheel carried by a fork to which is attached a lever projecting forwardly and carrying a guide wheel or a guide runner.
Patent GB-700510-A (GB)
Title: Improvements relating to dialkoxybenzoyl derivatives of 4,4-diaminostilbene-2,2 disulphonic acid and alkali metal salts thereof
Filed: 1950-11-03
Abstract: A 4,41-bis(2,4-dialkoxybenzoylamino) - stilbene - 2,21 - disulphonic acid having the general formula <FORM:0700510/IV(b)/1> in which R is an alkyl radical having 1 to 4 carbon atoms, and alkali metal salts thereof, are prepared by reacting a 2,4-dialkoxybenzoyl halide at a raised temperature with an amine-or symmetrical diaryl guanidinesalt of 4,41-diaminostilbene-2,21-disulphonic acid in an organic medium, neutralizing and, if desired, acidifying the product.  In examples, (1) a solution in nitrobenzene of the di-o-tolyl-guanidine salt of 4,41-diaminostilbene-2,21-disulphonic acid is heated with the acid chloride of 2,4-dimethoxybenzoic acid and the product, 4,41-bis (2,4-dimethoxybenzoylamino)-stilbene-2,21-disulphonic acid, is neutralized by adding a solution of phenol in sodium hydroxide solution; and (2) a solution in chlorobenzene of the triethylamine salt of 4,41-diaminostilbene -2,21-disulphonic acid is reacted with a solution of 2,4-diethoxybenzoyl chloride in chlorobenzene to give 4,41-bis (2,4-diethoxybenzoylamino)-stilbene-2,21-disulphonic acid which is then separated as its sodium salt.ALSO:Textile materials are brightened by applying a fluorescent stilbene derivative of the general formula <FORM:0700510/IV (c)/1> in which R is an alkyl radical having 1 to 4 carbon atoms, [see Group IV(b)], and alkali metal salts thereof.  They may be applied to the textile material, for example, in a soaping or rinsing bath.
Patent GB-934401-A (GB)
Title: Alkylpiperazine alkenyl succinimides and their use in lubricating oil compositions
IPC: C08F8/32
Filed: 1960-08-03
Abstract: N-Alkylpiperazine monoalkenyl succinimides of formula <FORM:0934401/III/1> in which R is an alkenyl radical containing 30-200 carbon atoms derived from a polyolefine RH obtained by polymerizing a C2-C5 olefine, R1 is an alkylene radical containing 1-3 carbon atoms and R11 is hydrogen or a hydrocarbon radical containing 1-3 carbon atoms, are used as detergents for addition to lubricating oils.  Lubricating oils which may be used are naphthenic base, paraffin base and mixed base lubricating oils, lubricating oils derived from coal products, and synthetic oils, e.g., alkylene polymers, alkylene oxide polymers, dicarboxylic acid esters, liquid esters of phosphorus acids, alkyl benzenes, polyphenyls and polymers of silicon.  The succinimides may be used in amounts of 0,1 to 80% by weight.  An example is given in which N-ethylpiperazine polybutenyl succinimide is added to California SAE 30 base oils. The lubricating oil compositions may also contain other conventional lubricant additives.ALSO:The invention comprises N-alkyl piperazine monoalkenyl succinimides of the general formula <FORM:0934401/IV(a)/1> in which R is an alkenyl radical containing 30-200 carbon atoms derived from a polyolefine RH obtained by polymerizing an olefine containing 2-5 carbon atoms, R1 is an alkylene radical containing 1-3 carbon atoms and R11 is hydrogen or a hydrocarbon radical containing 1-3 carbon atoms.  They may be prepared by reacting maleic anhydride with an olefinic hydrocarbon followed by reacting the resulting alkenyl succinic anhydride with an N-(b -aminoalkyl) piperazine.  In an example a polybutene (having a molecular weight of about 1,000) is heated with maleic anhydride to give polybutenyl succinic anhydride which is heated with N-(b -aminoethyl) piperazine to give Nethyl piperazine polybutenyl succinimide.ALSO:The invention comprises N-alkylpiperazine monoalkenyl succinimides of the general formula <FORM:0934401/IV(a)/1> in which R is an alkenyl radical containing 30-200 carbon atoms, derived from a polyolefin RH obtained by polymerising an olefine containing 2-5 carbon atoms, R1 is an alkylene radical containing 1-3 carbon atoms and R11 is hydrogen or a hydrocarbon radical containing 1-3 carbon atoms.  They may be prepared by reacting maleic anhydride with an olefinic hydrocarbon followed by reacting the resulting alkenyl succinic anhydride with an N-(b -aminoalkyl) piperazine.  The first step of the reaction takes place at 300-450 DEG F. and the second at 220 DEG -300 DEG F. In an example a polybutene (having a molecular weight of about 1000) is heated with maleic anhydride to give polybutenyl succinic anhydride which is heated with N-(b -aminoethyl)piperazine to give N-ethylpiperazine polybutenyl succinimide.
Patent GB-1522566-A (GB)
Title: Assay for free thyroid hormones
IPC: G01N33/74
Filed: 1977-06-28
Abstract: 1522566 Determination of thyroid hormone CORNING GLASS WORKS 28 June 1977 [30 June 1976] 26967/77 Heading G1B Free thyroid hormone in a fluid sample is determined by performing immunoassays for the hormone in the presence and in the absence of a blocking agent which may be menthisolate (thimenosal), 8-anilino-1-napthalene sulphonic acid or its salt or dilantion and comparing the "binding differential" so obtained with a standard curve. The immunoassay may be a radioimmunoassay using anti-thyroxine or anti-tri-iodothyonine antibodies attached to a water-insoluble carrier such as silanized glass particles. Specification 1522567 is mentioned.
Patent GB-1064915-A (GB)
Title: Electrochemical gas analysis
IPC: G01N27/416
Filed: 1965-06-25
Abstract: 1,064,915. Determining relative quantities of fluid mixture constituents. MINE SAFETY APPLIANCES CO. June 25, 1965 [Aug. 3, 1964), No.26978/65. Heading G1N. The proportion of a gas, such as oxygen, in a gaseous mixture is measured by the change in current in an electrolytic cell having an external emf. applied to it, Fig.2, due to the depolarization at the cathode surface 14 produced by the gas under test, the cathode consisting of a material porous to the gaseous mixture and impervious to the electrolyte, and the cell being characterized by the absence of galvanic action with or without an applied emf. The anode of the cell consists of a bent conductor 19 of, for example, nickel, and a second cathode may be provided to be contacted by a reference gas (e.g. normal air), the two cathodes (C1, C2, Fig.3, not shown) being identical and each comprising a tube 11, as in Fig.2, of porous carbon, a gas-conducting pipe 7 inside the tube, and layers 13 of lacquer or other insulating material to define a fixed exposed portion of the cathode surface to contact the electrolyte. The mounting arrangements at the top of the cathodes include gas and electrolyte seals. The gas inside the carbon tube diffuses through the tube to the outer surface to depolarize the polarized layer produced there by current supplied to the cell.  The two half cells constituted by the anode and the respective cathodes (C1, C2) are connected across adjacent arms of a bridge circuit Fig. 4 (not shown), having resistive arms (31-34), the bridge unbalance representing the difference in, for example, oxygen content of the test gas contacting C1, and of the reference gas contacting C2. To set up the bridge: the current in the test half-cell (C1, 18) is measured by setting a switch (S) to 'check' position, and a rheostat (37) is adjusted to give a predetermined current through the cathode (C1) thus defining a particular depolarizing response; a further potentiometer  (39) is adjusted to balance the bridge, with the switch (S) in its 'operate' position whereby the half cells are in series across a diagonal of the bridge, and with both cathodes contacted by reference gas; a fine zero is obtained with a potentiometer (40); and sensitivity is adjusted by a rheostat (46). The test cathode (C1) is then connected to the supply of gaseous mixture to be tested, and the bridge imbalance noted as a measure of the proportion of the required gas in the mixture.
Patent GB-355059-A (GB)
Title: A process of producing resists under vat colours
IPC: D06P5/12
Filed: 1930-09-11
Abstract: Resist prints under vat colours are obtained by printing the material with a paste containing a polyvinyl alcohol, water and an oxidizing agent, drying, and dyeing in a vat in the usual manner. The paste may also contain substances having a mechanical resist action, e.g. kaolin, and dyestuffs or components for obtaining coloured resists. In examples (1) a white resist is obtained by printing with a paste containing polyvinyl alcohol and sodium m-nitrobenzenesulphonate, drying and dyeing in a vat prepared from N-dihydro-1 : 2 : 21 : 11-anthraquinoneazine, glucose, caustic soda and hydrosulphite, (2) red or orange resists are obtained by printing a material prepared with 2 : 3-oxynaphthoic 51-chlor-21-toluidide with a paste-containing diazotized 5-chlor-2-aminotoluene or m-chloraniline in addition to the ingredients used in example 1, and (3) a pink resist is obtained by printing with a paste containing the disulphuric acid ester of 4 : 41-dimethyl-6 : 61-dichlor-leucothioindigo, ethylglycol, sodium benzylsulphanilate, kaolin, polyvinyl alcohol, ammonium sulphocyanide, sodium chlorate and ammonium vanadate, drying, steaming and dyeing in the vat in the usual manner.
Patent GB-1035698-A (GB)
Title: Improvements in or relating to internal combustion engine poppet valve devices and oil deflection devices for such valves
Inventor: GILES WILLIAM SAMUEL
IPC: F01L3/08
Filed: 1963-07-09
Abstract: 1,035,698. Valve gear; lubricating. THOMPSON R. WOOLDRIDGE Inc. July 9, 1963, No. 27175/63. Heading F1B. [Also in Division F2] An oil deflection device for an I.C. engine poppet valve comprises a valve spring retainer cap 22, Fig. 1, and an oil shield 35 having a skirt 31 shaped to engage within the cap for securing the oil shield to the cap. The oil shield may be of an acetal resin polymer of a thermo-plastic such as a polyoxymethylene, e.g. "Delrin" (Registered Trade Mark), or a metal pressing. The shield skirt 31 incorporates an annular bead 34 which engages in groove 33. In another embodiment an extension 51, Fig. 3 (not shown), having an outer tapering surface may be retained by a tapering bore 52 of a valve spring retainer cap 19.