baber/WOPTO huggingface dataset:
Patent GB-140198-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M19/08
Filed: 1919-03-12
Abstract: 140,198. Jones, G. H. March 12, 1919. Spray carburettors. -The carburettor comprises a fuel nozzle K which projects into the wall of the choke-tube F, a fuel-exit passage H in alinement therewith, and contiguous passages J, I formed respectively in the walls of the choke-tube and the carburettor body, the passage I leading to a by-pass orifice E. Under large throttle openings, fuel is discharged through the passage H into the main air stream, but when the throttle is nearly closed, air enters the passage H and mixture is delivered to the bypass orifice E. The orifice E or the passage I may be controlled by a needle valve, and the fuelexit passage H may be formed by one of a number of interchangeable plugs having various-sized orifices. In a modification, the choke-tube F is provided with several passages J and with a corresponding number of passages H of different sizes, any one of which may be brought into action by rotating the choke-tube. The air-inlet passage R may be provided with a throttle valve P.
Patent GB-1279577-A (GB)
Title: Polymerization of isoprene
Inventor: BONFARDECI AUGUSTO
IPC: C08F4/649
Filed: 1970-02-10
Abstract: 1279577 Polymerization of isoprene MONTECATINI EDISON SpA 10 Feb 1970 [11 Feb 1969] 6209/70 Heading C3P Isoprene is polymerized in a homogeneous phase using a catalytic system comprising (a) titanium tetrachloride, (b) an organometallic compound of the formula AlR 2 Cl wherein R is C 1-6  alkyl, and (c) polybutadiene or polyisoprene having a prevailing 1,4-cis structure to ensure the solubility of the catalyst in the reaction medium. The polymerization may take place in an aliphatic, cycloaliphatic or aromatic solvent. In the examples the organometallic compound is Al(C 2 H 5 ) 2 Cl and the solvent is benzene.
Patent GB-579211-A (GB)
Title: Improvements in and relating to instruments for the measurement of current impulses
IPC: G01R15/00
Filed: 1944-04-05
Abstract: 579,211. Ammeters and wattmeters. EVERETT, EDGCUMBE, & CO., Ltd., OCKENDEN, F. E. J., BRITISH THOMSONHOUSTON CO., Ltd., and HIGGINS, B. G. April 5, 1944, No. 6359. [Class 37] An instrument for measuring current impulses of short duration, such as the trains of A.C. waves used in spot and seam welding, has a moving element which is clamped to prevent movement except while the current to.be measured is flowing. The spindle 1 of an ammeter comprising a main coil 2 and a movable element 3 has a disc 4 fitted thereon, a light spring 5 resting against the disc with just sufficient force to clamp it in position. In series with the coil 2 is the coil 7 of an electromagnet arranged to attract the spring 5 and hold it out of contact with the disc 4 so that the spindle 1 is free to rotate so long as the current to be measured is flowing. The current flowing through the electromagnet coil 7 may alternatively be derived from the primary or secondary current of the welding transformer, or from the voltage applied to the primary of the transformer or the drop of voltage across the secondary. Instead of employing the disc 4, the pointer itself may be gripped by a curved clamping-bar operated by the electromagnet. The invention is applicable to alternative or direct current instruments and to voltmeters, wattmeters and recording instruments.
Patent GB-585793-A (GB)
Title: Improved method and device for the packing of fibre in pressing boxes
IPC: B65B27/12
Filed: 1942-05-11
Abstract: 585,793. Packing fibres into bales. ZIMMERMANN, J. H. May 11, 1942, No. 6363. [Class 94 (i)] To form long fibrous material such as sisal or manilla hemp into bales in such a manner that a compact bale is produced, use is made of a folding device for turning in the ends of the fibres which extend from their base a greater distance than the length of the press box 13, Fig. 9, and means are provided which enable a layer of fibres with turned-in ends to be fed alternately from opposite sides into the box 13. The fibres are placed with their thick ends on a shelf 3, Fig. 10, secured to one side of a trestle- . like structure 1 which is formed with a semicylindrical top 2 over which the fibres are led so as to extend beyond slots 4 formed in the sides of the structure 1. One cylindrical member 7 of a gripping device is passed through the slots 4, and the other member 6, which has a concave part, is guided by arms projecting from the'trestle sides and pressed against the member 7 by workmen arranged at either side of the structure, and each workman by means of a handle draws the fibres towards box 13 with the ends of the fibres hanging down as shown in Fig. 12. The fibres are guided to the box 13 by the aid' of a filling frame 8, Figs. 6, 9, formed with legs 9 for attachment to the box 13, with slanting faces 10 and with notches 12 which receive the gripping devices prior to their withdrawal from the folded fibres. To prevent cracking of the fibres at the bends the turned-over parts are drawn obliquely by the operators when withdrawing the gripping devices; or the filling frame 8 may be fitted with a pair of clamping means, 19, 20, Fig. 26, one of which is drawn to one side and the other to the other side of the frame so as to set the end plates obliquely in position. Adjacent layers may be sloped in the same direction, or alternate layers may be sloped in different directions.
Patent GB-565131-A (GB)
Title: An improved electric circuit system for causing a given operation to take place at apredetermined time interval after a prior operation
IPC: H03K17/28
Filed: 1943-04-21
Abstract: 565,131. Control systems for resistance welding &c. IGRANIC ELECTRIC CO., Ltd., and TOWNSEND, P. W. April 21, 1943, No. 6404. [Class 38 (iv)] [Also in Group XXXVII] Switching con trol.-An electrical device to cause one operation to follow another after a predetermined time interval, applicable in particular to timing the duration of a welding operation, comprises a switch having an actuating winding tw1 and a coil tw2, the latter being shunted when the actuating winding is energized. The inherent electrical inertia in the circuit of the winding tw2 determines the time interval. The initial energization of the coil tw2 is determined by a potentiometer p across an adjustable portion of which it is connected.. As shown, the welder w is operated by pressure on a foot switch b, whereby a relay rw is energized. The contacts rc1 of this relay energize a main contactor coil mw through normally closed contacts tc operated by the relay switch coil tw1, of which the actuating winding tw1 is energized through the relay contacts rc2 and the restraining winding tw2 is short-circuited by contacts rc3. The contactor mw operates the main contacts mc1 and closes a maintaining circuit for the relay winding rw at contacts mc2. The welder circuit is opened on the opening of contacts tc when the flux on the coil tw2 has decayed sufficiently. The potentiometer p is in series with a resistance s and is supplied together with the windings tw1, tw2 through a rectifier f. Specification 462,264 is referred to.
Patent GB-1019563-A (GB)
Title: Octahydroanthracenes and preparation thereof
IPC: C07D207/327
Filed: 1962-08-03
Abstract: A process for the preparation of compounds having the basic skeletal structure of <FORM:1019563/C2/1> comprises reacting a 3,4,10-trioxo-octahydroanthracene having the basic skeletal structure of <FORM:1019563/C2/2> or a tautomer thereof, and an excess of sodium borohydride at a temperature below 0 DEG  C. in a reaction inert solvent, e.g. liquid amine, in which R1 is COOR2 or <FORM:1019563/C2/3> wherein R2 is lower alkyl, hydrogen or benzyl; Y1 is H, -CONH(CH3), -CONH(C2H5), -CONH2, cyano, carboxy, lower carbalkoxy, carbobenzoxy; Y2 is -CONH(CH3), -CONH-(C2H5)2, -CONH2, -CON(CH3)2, lower carbalkoxy cyano, carbobenzoxy carboxy; R3 and R4 when taken together with the N atom form a heterocyclic ring consisting of piperazyl, piperidyl, morpholinyl, pyrryl, pyrrolidyl, 2-(lower carbalkoxy), pyrrolidyl or thiomorpholinyl, or when taken separately are each H, aralkyl, amino, mono- and di-alkyl amino, acyl, phenyl or amino substituted phenyl or CH2B1, where B1 is H, lower alkyl, lower carbalkoxy, or mono substituted lower alkyl. In an example n-butyl - 3 - hydroxy - 5 - methoxy - 8 - chloro - 4,10 - dioxo - 1,2,3,4,4a,9,9a,10 - octahydroanthracene - 2 - (a  - dimethylamino)acetate hydrochloride, is prepared by reacting 2-carbobutoxymethylidene - 3,4,10 - trioxo - 5 - methoxy - 8 - chloro - 1,2,3,4,4a,9,9a,10 - octahydroanthracene with dimethyl aniline.  In another example 2 - [(51 - (31 - N,N - dimethyl - carboxamido - isoxazolyl)(N,N - dimethylamino)-methyl] - 3 - hydroxy - 5 - methoxy - 8 - chloro - 4,10 - dioxo - 1,2,3,4,4a,9,9a,10 - octahydroanthracene is produced by reacting 2-[(51-(31-carbomethoxy)isoxazolyl)methylidene] -5-methoxy - 8 chloro - 3,4,10 - trioxo - 1,2,3,4,4a,9,9a,10 - octahydroanthracene with dimethyl aniline. Many examples are given.
Patent GB-1495925-A (GB)
Title: Housings for machines
IPC: G07F17/38
Filed: 1975-02-15
Abstract: 1495925 Housings for amusement machines BRIGHOUSE GAMES Ltd 15 Feb 1975 6514/75 Heading G4V A housing 10 for an amusement machine comprises an upper rectangular portion 16 and a lower rectangular portion 12 which is mounted on legs 14, portion 16 is pivotally connected to portion 12 and there is resilient means 32 provided for assisting movement of the upper portion from the "closed" to the "open" position. A torsion spring 36 has cranked ends. One end engages in a tubular member 42 of a bracket 34, the middle portion lies in channel 46 of the bracket whilst the other end bears against friction plate 44. A stay 50 is pivotally connected to portion 16 and during closing of the portions engages friction plate 52. At least one end of the bracket 34 is connected to a leg 14. Fig. 3 (not shown) illustrates how balls are transferred to a playing area. The housing is particularly applicable to a table football amusement machine or a hockey game machine or a pin-ball type of machine.
Patent GB-307494-A (GB)
Title: Improvements in water tube boilers
IPC: F22B37/14
Filed: 1929-02-28
Abstract: 307,494. Krupp Germaniawerft Akt.- Ges., F. March 10, 1928, [Convention date]. Water-tube boilers.-A wall of tubes 5 formed by so bending the tubes of several rows connecting upper and lower drums 1, 2 that the tubes lie in one plane, is protected from the direct radiation of the furnace 4 by one or more rows of space tubes 6, 7 of greater diameter than the tubes 5.
Patent GB-709038-A (GB)
Title: Automatic-gain control apparatus for television receivers
IPC: H04N5/53
Filed: 1952-03-13
Abstract: 709,038. Automatic gain control. HAZELTINE CORPORATION. March 13, 1952 [May 9, 1951], No. 6555/52. Class 40 (5) In a television receiver employing keyed automatic gain control, the demodulated video signals, including synchronization signals, are applied to the control grid of a valve 30 which is periodically gated on by the application to its anode circuit of pulses developed in the line-scanning circuits of the receiver, the potential developed across a condenser 41, in series with the anode circuit of the valve and in parallel with a level setting diode 42, as a result of the periodic pulses of current flowing through the valve being employed to control the gain of the radio frequency and intermediate-frequency stages of the receiver. Under conditions of normal operation pulses are delivered by line-scanning amplifier 23 in synchronism with the line synchronizing pulses and a continuous train of pulses of current is passed by the triode 30 to charge condenser 41 negatively in accordance with its mean value. The output from the condenser is used, after smoothing by the integrating circuit 44, 46 to effect A.G.C. Under abnormal conditions however when the video-frequency amplifier is overloaded thereby reducing the effective amplitude of the synchronizing pulses and permitting incorrect operation of the scanning circuits, the pulses from the line scanning amplifier 23 will not be coincident with the line synchronizing pulses in the video signal applied to the control grid of the triode 30 and pulses of current will be passed by the triode in intermittent groups corresponding to the beat-frequency between the two sets of pulses. Consequently a varying potential is developed across the condenser 41, which in the absence of diode 42 would be of smaller amplitude than the A.G.C. signal developed when the circuit is operating correctly and so would be unable to prevent overloading in the video amplifier and restore normal operation. However, by virtue of diode 42, the most positive portion of the A.G.C. signal is reduced to earth potential so that the mean level of the signal has a sufficiently large negative value to restore normal operation. Figs. 3 and 4 (not shown) each show a circuit wherein the triode is replaced by a pentode and the cathode circuit is biased by a potential-dividing network connected to the screen-grid, the condenser 33 being omitted. The circuit of Fig. 3 also comprises a seriesresonant circuit tuned to the line frequency byepassing the condenser 41 and a switch for alternatively returning the resistor 43 to earth instead of to the positive HT potential. Specification 697,821 is referred to.
Patent GB-235316-A (GB)
Title: Improvements in or relating to blast and like furnaces
IPC: C21B7/16
Filed: 1924-03-14
Abstract: 235,316. Bagley, C. H. F. March 14, 1924. Metal pipes and tubes.-In a blast furnace, in order to maintain the temperature of the hot blast, heat insulating material is applied to the water-cooled tuyere e and to the removable blowmain. This takes the form of a lining c, or coating d or both, for the blow-pipe and elbow and a lining g fom the tuyere, refractory non-conducting material being used, such as fire-clay, china-clay, asbestos, silicate, or other enamel or cement.
Patent GB-198445-A (GB)
Title: Improvements in, and relating to, mixing valves
IPC: F16K11/16
Filed: 1922-03-07
Abstract: 198,445. Davenport, J. A. March 7, 1922. Mixing-valves; interconnecting two valve members.-A mixing-valve comprises two plug cocks arranged on the same axial line, and connected together by an Oldham coupling. The two plug cocks 1, 2 are formed in separate casings and are connected to a common mixing chamber 3 so that each fluid has no temperature or corrosive effect on the other cock. The plugs are connected by an Oldham coupling 5 so that an error in alignment is not material. The operating lever may project from the coupling or from the end of one of the plugs. The ports 6, 7 are arranged so that either may be fully opened while the other is closed, or both may be partly open for mixing. More than two mixing cocks may be combined in a similar manner. Grease cups 43 are provided, and spring washers 13 between the gland and plug. Mixing is facilitated by the perforated tube 8, or in the case of a number of fluids, successive mixing chambers are arranged in series.
Patent GB-512784-A (GB)
Title: Improvements in and relating to control gear for electric motors
IPC: B66B1/12
Filed: 1938-03-03
Abstract: 512,784. Control of A.C. motors. ALEXANDER, G. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 3, 1938, No. 6742. [Class 38 (iii)] Non-regenerative braking reversing. - Upon operation of a controller from its off position to a forward position contacts Sf are closed to energise a contactor F which connects a motor to the supply for forward operation and further movement operates a liquid controller. Contacts S operated by a centrifugal device responsive to the speed of the motor close and a relay 1 is energised to open contacts 1c in series with a reversing contactor R and close contacts 1b in series with a braking contactor B. Thus if the controller is moved back to its off position and into its reverse position to close contacts Sr and open contacts Sf, the contactor B is energised while the motor continues to operate in its forward direction. The contactor B connects a direct current source to one winding of the motor and loading resistances to the other. The motor is braked to rest whereupon the contacts S open and the circuits restored.. Power can be reapplied in either direction but not until the controller has been returned to the off position to close interlock contacts LC1. Similar control is obtained for operation in the reverse direction. In a modification the switch S is replaced by a switch operated to either side of an off position in accordance with the direction of movement of the motor, and the circuits of the relays 1 and 2 contain only normally closed contacts of the reversing contactors, which ensure that dynamic braking is not introduced where the motor is driven by its load in a direction opposite to that corresponding to the position of the controller. Specification 472,192 is referred to.
Patent GB-782763-A (GB)
Title: Substituted-urea sulfonic acid herbicides
IPC: C07C273/18
Filed: 1955-03-08
Abstract: The invention comprises compounds of formula <FORM:0782763/IV (a)/1> wherein R is carbocyclic radical which may be substituted, R2 is an alkyl radical, X is oxygen or sulphur, R1 and R3 are hydrogen or an alkyl radical and R4 is a carbocyclic or alkyl radical which may be substituted.  The compounds are prepared by reacting the substituted urea or thiourea with the sulphonic acid, in solution in a solvent such as xylene or acetone, and separating the reaction product by precipitation with a solvent, such as petroleum ether.  The compounds are used in herbicidal compositions (see Group VI). Sulphuric acids specified include methane sulphonic acid, 2 : 4 : 6-trichlorobenzene sulphonic acid, and sulphophthalic acid esters. In examples: (1) 1 - phenyl - 3 : 3 - dimethyl - or diethyl- or 1 - (41 - chlorophenyl) - 3 : 3 - dimethyl- or 1-phenyl-3-methyl-urea is reacted with dodecylbenzene sulphonic acid or naphthalene-b -sulphonic acid; (2) 1-phenyl-3 : 3-dimethyl- or 1 - (41 - chlorophenyl) - 3 : 3 - dimethyl - or 1 - phenyl-3-methyl-urea is reacted with p-toluene sulphonic acid; (3) 1-phenyl-3 : 3-dimethylurea is reacted with benzene sulphonic acid or the sulphonated residue from the manufacture of dodecylbenzene; (4)1-(41-chlorophenyl)-3 : 3-dimethylurea is reacted with ethane sulphonic acid.  Specifications 691,403 and 692,589 are referred to.ALSO:Herbicidal compositions comprise compounds of formula <FORM:0782763/VI/1> wherein R is a carbocyclic radical which may be substituted, R2 is an alkyl radical, X is oxygen or sulphur, R1 and R3 are hydrogen or an alkyl radical and R- is a carbocyclic or alkyl radical which may be substituted. The compounds are prepared by reacting the substituted urea or thiourea with the sulphonic acid (see Group IV (b)).  Specified compounds are prepared from the following starting materials: 1-phenyl - 3 : 3 - dimethyl - urea, 1 - (41 - chlorophenyl) - 3 : 3 - dimethyl - or - diethylurea and 1-phenyl-3-methyl-urea; dodecylbenzene sulphonic acid, b -naphthalene sulphonic acid, benzene sulphonic acid, p-toluene sulphonic acid and ethane sulphonic acid. Specified diluents are water, benzene, toluene, xylene, ethyl-benzene, naphtha and hydrocarbon oils such as fuel oil, diesel oil and kerosene.  The compositions may also contain an excess of the sulphonic acid reactant.  Specifications 691,403, [Group IV (b)], and 692,589 are referred to.
Patent GB-397938-A (GB)
Title: Improvements in or relating to the hydrogenation of carboxylic acids
IPC: C07C29/17
Filed: 1932-03-07
Abstract: The catalytic reduction with hydrogen of aliphatic monocarboxylic acids to produce alcohols and/or esters is effected by means of a chromite catalyst prepared by dissolving zinc, cadmium and copper nitrates in water (zinc nitrate preferably predominating) and precipitating the metals as chromates by adding a solution of chromic acid and ammonia; the reaction mixture is neutralized by more ammonia, and the precipitate is washed, dried at 100 DEG  C. and ignited at 400 DEG  C. after which it is granulated and pressed into tablets.  In examples, (1) the catalyst is placed in a steel pressure vessel and heated to 350 DEG  C. in a stream of hydrogen; the hydrogen pressure is then raised to 2000 lbs. per sq. in. and lauric acid is pumped over the catalyst while hydrogen is drawn through the apparatus; the product contains lauryl alcohol and lauryl laurate; (2) butyric acid similarly treated yields butanol and butyl butyrate; (3) glacial acetic acid yields ethyl alcohol and ethyl acetate; (4) coconut oil acid yields mixed alcohols, including decyl and lauryl alcohols, and lauryl laurate; (5) the acids of castor oil yield a viscous product containing about 40 per cent of esters; (6) oleic acid yields quantities of ester and alcohol varying with the temperature (table given); the alcohol contains both oleyl and stearyl alcohols; to obtain pure stearyl alcohol the product is hydrogenated with a nickel-kieselguhr catalyst at 125-150 DEG  C. and 150 lbs. per sq. in.; (7) a solution of stearic acid in butanol yields after removal of the butanol a product containing 77 per cent of stearyl alcohol and a residue containing wax and alcohol. The process may be varied so as to produce a high yield of esters (high rate of flow and relatively low temperatures) or a high yield of alcohols (low rate of flow and relatively high temperatures). Specifications 356,731 and 367,003 are referred to.  The Specification as open to inspection under Sect. 91 includes the reduction of hydroaromatic acids, aromatic acids containing the acid group in an aliphatic side chain, hydroxy and ketonic acids, and catalysts may be used which consist of the difficulty reducible oxides of hydrogenating metals, for instance a mixture of chromates, the process being effected above 200 DEG  C. and above 13,5 atmospheres pressure.  This subject-matter does not appear in the Specification as accepted.ALSO:A chromite catalyst for the reduction of organic acids with hydrogen is made by dissolving zinc, cadmium, and copper nitrates in water (the zinc nitrate preferably predominating) and precipitating the metals as chromates by adding a solution of chromic acid and ammonia; the reaction mixture is neutralized by more ammonia, and the precipitate is washed, dried at 100 DEG  C., and ignited at 400 DEG  C., after which it is granulated and pressed into tablets.  Before use it is heated to 350 DEG  C. in a stream of hydrogen.  Specifications 356,731 and 367,003 are referred to.
Patent GB-577246-A (GB)
Title: Improvements in and relating to electric regulators
IPC: G05F1/32
Filed: 1944-04-13
Abstract: 577,246. Automatic current regulators; electric transformers. BRITISH THOMSONHOUSTON CO., Ltd. April 13, 1944, No. 6804. Convention date, April 16, 1943. [Classes 38 (ii) and 38 (iv)] A constant current regulating system comprises a transformer having flux leakage paths 2 with restricted portions 3 for a high leakage reactance and a condenser 7 connected in effective shunt relation with the leakage reactance. Loosely coupled coils 4, 5 which are equal and are wound to oppose each other on a core 1 are connected together in series with the condenser. A portion or all of the winding of the coil 4 may be connected to an alternating current supply and a coil 6, closely coupled to the coil 5, may be connected to a load. In a modification the load is tapped off a portion of the coil 5.
Patent GB-1378097-A (GB)
IPC: C08K5/00
Filed: 1973-02-13
Abstract: 1378097 Nickelcyclohexylamine complex of 2,2<SP>1</SP>- thio bis - (p - alkyl phenol) AMERICAN CYANAMID CO 13 Feb 1973 [3 April 1972] 7045/73 Heading C2C [Also in Division C3] The invention comprises nickel cyclohexylamine complexes of 2,2<SP>1</SP>-thiobis-(p-alkyl phenol) of formula wherein said alkyl groups (R) have up to 18 carbon atoms. The compounds of the invention may be prepared by reacting a nickel complex of 2,2<SP>1</SP>-thiobis-(p-alkyl phenol) with cyclohexylamine, in an inert volatile organic solvent at an elevated temperature. The compounds of the invention may be used as stabilizers for polymers.