baber/WOPTO huggingface dataset:
Patent GB-105664-A (GB)
IPC: B63H23/24
Abstract: 105,664. British Thomson-Houston Co., (General Electric Co.) June 9, 1916 Systems for alternating- current motors only.-In a system of electric propulsion for ships, two induction motors are provided on each propeller shaft; one motor has two primaries giving different pole numbers and the other has a single primary which can be connected for different pole numbers. Both motors with the small pole number connexion are used for high speed, while for other speeds the motors are used separately with the high pole number connexion. A twophase electric equipment is illustrated in the Figs., the generators 11 being driven by turbines 10 and connected to bus-bars 15 by switches 16. The motors A are connected to the bus-bars through polechanging switches 29 and main switches 36, 33. The motors Bare connected to the busbars through pole - changing switches 31, reversing switches 32 and main switches 34. The windings 25 of the motors A give the large pole number, for instance, twentyfour, and the windings 26 give the small pole number, for instance, twelve. The windings 30 of the motor B are arranged to give eighteen or twelve poles according to the position of the switch 31. The switches 31, 32, 36 are interlccked so that when the switch 32 is in the reverse position, the switch 31 must be in the low speed position, and the switch 36 must be in the open position to disconnect each motor A. For low speed running, the motors A only are supplied from one generator 11 and the switches 29 connect in circuit the large pole number windings 25. For intermediate speeds, the motors B only are supplied from two generators and the switches 31 are placed to give the large pole number of the motors. For full speed, the motors A, B are connected in parallel, the low pole number being used on each, and supplied from three or four generators. For reversing, the motors B alone are used and the switches 31 are placed to give the high pole number. The rotors of the motors B have two windings, one of high resistance and low inductance, the other of low resistance and high inductance. Specification 25858/03, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-105871-A (GB)
IPC: H01H37/00
Abstract: 105,871. Jackson, W. J. Mellersh-, (Baruch Electric Controller Corporation). Nov. 16, 1916. Thermal cut-outs.-A protective device for electric apparatus depends for its operation upon a thermal element with a heating characteristic corresponding directly with the heating characteristic of the apparatus. The thermal element is associated with a body which changes its shape, volume, or condition with variations in temperature. In the form shown. the thermal strip 5 is wound in a double spiral coil 7 round the bulb at the end of a tube containing mercury. To insulate the apparatus so that it possesses the same heat characteristic as the hottest part of the electrical apparatus, it may be confined in an air space by a casing 2 of porcelain, fibre &c. with end caps 3 to carry the connexions, or the casing may contain a finely-divided insulating-material, such as asbestos powder. The device may be applied for the protection of motors &c., by connecting the strips 5 in one of the leads and the circuitbreaker trip coil to the terminal 14.
Patent GB-1006336-A (GB)
Title: Organoboron polymers
IPC: C08G79/08
Filed: 1963-03-18
Abstract: The invention comprises polymers having the recurring structural unit:  <FORM:1006336/C3/1> where X is an alkylene radical 2 to 20 carbon atoms in length and containing a total of 2 to 20 carbon atoms, a cycloalkylene radical, whose cyclic portion contains 4 to 6 carbon atoms and which contains a total of 4 to 20 carbon atoms, 1,3-phenylene or 1,4-phenylene.  The polymers may be made by heating a mixture of a 5,51-bis-(2-oxy-1,3,2-benzodioxaborole) of the formula <FORM:1006336/C3/2> (R being alkyl of 1 to 8 carbon atoms, phenyl, tolyl or hydrogen) and a diol of the formula HO-X-OH in the presence of a solvent inert to the reactants, continuously removing the reaction by-product and recovering the polymer. The benzodioxaborole may be made in situ by heating a mixture of an orthoborate B(OR)3 and bis-(3,4-dihydroxyphenyl) in an inert solvent and continuously removing the alcohol by-product; the product being hydrolysed if R is to be hydrogen.  The formation of the benzodioxaborole and reaction with the diol may be carried out in a continuous process. Specification 961,280 is referred to.ALSO:The invention comprises polymers having the recurring structural unit <FORM:1006336/C2/1> where X is an alkylene radical 2 to 20 carbon atoms in length and containing a total of 2 to 20 carbon atoms, a cycloalkylene radical, whose cyclic portion contains 4 to 6 carbon atoms and which contains a total of 4 to 20 carbon atoms, 1,3-phenylene or 1,4-phenylene.  The polymers may be made by heating, e.g. under reflux, a mixture of a 5,51-bis-(2-oxy-1,3,2-benzodioxaborole) of the formula <FORM:1006336/C2/2> (R being alkyl of 1-8 carbon atoms, phenyl, tolyl or hydrogen) and a diol of the formula HO-X-OH in the presence of a solvent inert to the reactants, continuously removing the reaction by-product and recovering the polymer. The 5,51-bis-(2-oxy-1,3,2-benzodioxaborole) may be made by reaction of an orthoborate of formula B(OR)3 with bis-(3,4-dihydroxy-phenyl) by heating them in an inert solvent and removing the alcohol formed as a by-product; if R is to be hydrogen, the product so obtained is hydrolysed.  The formation of starting material in situ and reaction with the diol may be carried out continuously.  Specification 961,280 is referred to.
Patent GB-1508247-A (GB)
Title: Enzyme electrode
IPC: C12Q1/00
Filed: 1976-03-17
Abstract: 1508247 Enzyme Electrode SERVOCHEM AB 17 March 1976 [27 March 1975] 10720/76 Heading G1N An enzyme electrode comprises an enzyme chamber 10 defined by a semi-permeable membrane 11 and the sensing surface 9 of detecting electrode 2 and inlet 12 and outlet 13 pipes to the enzyme chamber, the inlet pipe containing an enzyme sterilizer 14.  The device may be sterilized with the enzyme absent, the enzyme then being supplied through sterilizer 14 which may be a membrane filter or radiation sterilizer. The electrode 2 may be sensitive to pH, oxygen or ammonium depending on the enzyme. The enzyme may be present as a solution or as a suspension of immobilized enzymes. It may be covalently bonded to or absorbed in a bearer, contained in a cross linked bearer, microencapsulated or in a cross-linked aggregate. Co-enzymes, commonly NAD(H) and NADP(H) bound to water soluble bearers such as dextrone may also be supplied. New enzyme solution can be supplied intermittently or continuously during use. An electrode with pH detecting electrode and penicillinase enzyme for penicillin determination is described.
Patent GB-969307-A (GB)
Title: Process for the production of n-substituted formhydrazono esters
Filed: 1963-03-19
Abstract: N-alkoxymethylenehydrazones are prepared by (a) dehydrating an N-formylhydrazone with an acid chloride and (b) reacting the resulting isonitrile with an alkali metal alcoholate. Examples are given: in two cases the N-isonitriles are isolated.
Patent GB-454866-A (GB)
Title: Compressed air or compressed gas lift pump for raising liquids from bore holes or the like
IPC: F04F1/06
Filed: 1935-04-08
Abstract: 454,866. Oil wells. INTERNATIONALE TIEFBOHR AKT.-GES.H. RAUTENKRANZ 5, G³terbahnhofstrasse, Celle, Germany. April 8, 1935, No. 10835, Convention date, April 20, 1934. [Class 102 (ii)] In an oil well in which oil is forced from a collecting chamber a by compressed air or other gas distributed by a a valve E, the latter is carried by the rising main F, which is moved axially by a piston 3, also on the rising main. The piston 3 reciprocates in a cylinder 2, the upper end of which acts as an air cushion or is open to atmosphere, while the lower end is connected by a cock 23 alternately to the compressed-air supply-pipe 12 through a connection 11 and to a cylinder 6 through a connection 10. A piston 5 in the cylinder 6 operates the cock 23 through a rack 7. In the position shown the oil is driven up the pipe F by compressed air admitted to the chamber a by the pipe 12, the chamber b and ports N, O. Air following the oil depresses the piston 5 and rotates the cock 23 to admit air beneath the piston 3, which rises. The chamber a is thus connected to atmosphere through ports O, M and a pipe 16. The rise in pressure in the chamber b then opens a valve 4 to admit air beneath the piston 5 which rises and returns the cock 23 to the position shown. The Specification as open to inspection under Sect. 91 describes also a modification, Fig. 1 (Cancelled), in which the rising main F is carried by a beam S reciprocated by a piston 3. The latter is connected to compressed air and to exhaust by valves 24, 25 operated by a cam bar 7 connected to a piston 5. The oil is discharged by the pipe F through a chamber H and pipes 14, 15 and the gas following the oil is admitted to the piston 5 by a pipe 14<1> controlled by a float valve 31. The return movement of the piston 5 is effected by compressed air admitted by a valve 4 and pipe i. This subject-matter does not appear in the Specification as accepted.
Patent GB-595250-A (GB)
Title: Improvements in or relating to systems for producing gaseous atmospheres for use, for example, in the heat treatment of metals
IPC: C21D1/76
Filed: 1944-06-06
Abstract: 595,250. Fixing gaseous mixtures; special furnace atmospheres. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 6, 1944, No. 10885. Convention date, June 10, 1943. [Classes 51 (ii) and 55 (ii)] Gaseous atmospheres used, e.g., in the heat treatment of steel and comprising a mixture of carbon monoxide, nitrogen, hydrogen with possibly small amounts of methane, water vapour and carbon dioxide, are obtained by heating a mixture of carbonaceous fuel gas and oxidizing gas in proportion slightly smaller than necessary to oxidize the carbon content of the mixture whilst passing through a porous catalyst so that free carbon is slowly deposited, and at intervals by control means directly responsive to resistance to gas flow reducing the supply substantially to oxidizing gas only to allow some of the carbon to be oxidized. The product gas during this operation containing no hydrogen may be collected with the main supply or be diverted. Air and gas are supplied through pipes 1, 2, through a mixer 3 and a constant-flow apparatus 5 to a gas generator 7 containing a porous catalyst 9 and heated by electric heaters 11. When a predetermined pressure difference is brought about by carbon deposition a differential pressure gauge 13 closes a switch 14 a timer T being connected to a mains electric supply whereupon by closing of a contact T2 the operating coil 16 of a valve V causes the valve to shut off the gas supply until the timer re-opens the contact. Specification 595,295 is referred to.
Patent GB-142456-A (GB)
Title: Improvements in and relating to vehicle wheels
IPC: B62M25/00
Filed: 1920-04-20
Abstract: 142,456. Johnson, L. J. April 30, 1919, [Convention date]. Spring drives.-A traction wheel is provided with a spring drive by means of a spider 6 mounted in a groove between the spoke flanges to have limited relative rotation on the hub and carrying an annular transmission member 8 on arms 13 extending between the spokes 3. The spider is connected by spring devices 16 to brackets 19 on the rim, and is formed in two parts, one of which may carry all the arms 7. The plane of the rim 1 may be to the side of the centre of the hub away from the transmission member.
Patent GB-541574-A (GB)
Title: Improvements in racks for clamping conduits, cables and the like
IPC: F16L3/22
Filed: 1940-06-29
Abstract: 541,574. Supporting pipes. WALSALL CONDUITS, Ltd., and MILLARD, A. E. June 29, 1940, No. 11040. [Class 99 (ii)] [Also in Groups XXXVI and XIV] Conduits or cables are held in saddles adjustable in supporting racks. Nut members 10 slide in shallow channels 5 with sides 7 projecting over the flat base. Saddles 15 with side securing pieces 16 are held by screws 14 passing through key-hole slots 18 to tighten the saddles against the nut members 10. The members 10 have grooves 11 and shoulders 12 to give substantially a live contact with the inner side of the flanges 7. Two or more channels may be secured together side by side or may be formed from a single piece by pressing.
Patent GB-1452207-A (GB)
Title: 2-2-thioethyl-4-carboxy thiazolidine derivatives
IPC: C07D417/12
Filed: 1974-03-13
Abstract: 1452207 4-Carboxy-2-mercaptoethyl-thiazolidine derivatives FERLUX-CHIMIE SA 13 March 1974 [22 March 1973] 11078/74 Heading C2C The invention comprises 2-(2-thioethyl)-4- carboxy thiazolidine derivatives of the general Formula (I) in which R is selected from: a hydrogen atom; an alkyl radical; a phenyl radical which may or may not be substituted; an alkylaryl radical of the Formula (II) in which n is 1, 2 or 3, and the aromatic nucleus may or may not be substituted; an acyl radical of the formula -CO-R 1 , in which R 1  represents an alkyl radical; a heterocyclic group of the formula -(CH 2 ) n1 -R 2 , in which n<SP>1</SP> is 0, 1 or 2 and R 2  is a heterocyclic radical; and a group of the Formula (III) in which n<SP>11</SP> is 1, 2 or 3, R<SP>1</SP> 1  and R<SP>1</SP> 2  each represent a hydrogen atom or an alkyl radical, and R 3  represents a hydroxy, alkoxy, aryloxy or amine group. They are made by reacting acrolein with RSH and further reacting the mixture obtained with cysteine or its hydrochloride. Pharmaceutical preparations having analgesic, mucolytic, hypotensive, antihypertensive and cardiostimulative actions contain (I) as active ingredient. Administration may be orally, rectally, parenterally or topically.
Patent GB-582561-A (GB)
Title: Improvements in and relating to electric meters of the induction type
IPC: G01R11/36
Filed: 1944-06-09
Abstract: 582,561. Energy meters. BRITISH THOMSON-HOUSTON CO., Ltd. June 9, 1944, No. 11089. Convention date, June 11, 1943. [Class 37] In an induction meter comprising an E-shaped voltage magnet and a U-shaped current magnet facing opposite sides of the armature disc, lightload adjustment is effected by means of a magnetic block slidably mounted along a magnetic strap fixed to the voltage magnet. The block functions as an auxiliary voltage flux pole-piece for diverting a substantially fixed percentage of flux from the central leg of the voltage magnet into the disc at a point adjustable tangentially to a radius thereof, and means are provided to produce lagging of the voltage flux diverted by the block. The meter magnetic core comprises an E-shaped portion, the central leg 15 of which carries the voltage coil, joined by a yoke 18 to a U-shaped portion the legs 16, 17 of which carry the current coils. Phase adjustment of the voltage coil flux is provided for by a lag coil 22 of conducting material extending parallel with and above the meter disc armature (not shown) through the air gap 19 and secured to the voltage core by its turned-up edge 23. The resistance of the lag coil is adjustable by means of a portion 23<1> and a magnetic member 24 having a negative temperature co-efficient of permeability is provided on the coil for compensating temperature variation. The auxiliary pole for light load adjustment comprises a magnetic block 31 threaded on a non-magnetic rod 28 rotatably mounted in the upstanding ends 26, 27 of a cold-rolled steel U-shaped strap secured with the edge 23 of the lag coil- and preferably one or more conducting spacer strips 29 to the voltage magnet 15 by non- magnetic rivets 30. Rotation of the rod 28 by means of the head 34 causes the magnetic block 31 to slide along the straps 25 and it may be adjusted to produce a additative or subtractive effect on the torque produced by the main fluxes. The nut 31 is biassed by the rod 28 against the strap 25 and backlash is prevented by a spring 39. The nut 31 and strap 25 are magnetically connected with the core 15 by magnetic material 35 within a rivet 36 which may also be of magnetic material. The flux passing from the core 15 to the auxiliary pole 31 has to cut the turned-up edge 23 of the lag coil 22 and the conducting spacer 29, if provided, and threads the unlaminated parts 35, 25, 31. It therefore lags behind the main voltage flux, and remains substantially constant. To ensure that the main portion of the auxiliary pole flux traverses the disc from the pole 31 rather than from the strap 25 the latter is cut away on the airgap side at 43. The overload magnetic shunt 41 across the current cores 16, 17, through which the auxiliary pole flux largely passes is not essential to the invention and may be dispensed with.
Patent GB-1216393-A (GB)
Title: Improvements in or relating to gunn effect amplifiers
IPC: H03F3/12
Filed: 1968-03-07
Abstract: 1,216,393. Gunn effect amplifiers. TELEFUNKEN PATENTVER WERTUNGSS - G.m.b.H. 7 March, 1968 [4 April, 1967], No. 11125/68. Heading H3T. A Gunn effect amplifier has a load such that oscillation occurs only when there is applied both a bias voltage exceeding the critical value at which negative resistance occurs and a microwave oscillation having a frequency equal to the oscillation initiating frequency of the device and also has means for applying a signal to be amplified. The output may be taken off by a circulator and the input signal to be amplified may be pulse length or position modulated.
Patent GB-142298-A (GB)
Title: Improvements in bobbins, cops or like bodies of yarn and in the winding of and mechanism for winding such bobbins, cops, or like bodies of yarn in ring spinning machinesand other machines having ring rails or other yarn guiding means moved like ring rails
IPC: D01H1/36
Filed: 1919-05-05
Abstract: 142,298. Andrew, T., Holt, Ltd., T., and D. R. Cotton Mills, Ltd. May 5, 1919. Building-motions.- To facilitate the unwinding, one after another, of bobbins, cops &c. in succession, and the connexion of the terminal end of the yarn on one bobbin to the beginning end of the yarn on the next succeeding bobbin to be unwound, two or more coils c, d, Fig. 1, of yarn are wound on the lower part of the wooden bobbin or base tube below the part on which the mass of the yarn is wound. In a ring spinning, doubling or like machine, when it is desired to wind coils as above described, the machine is stopped and the driving clutch v of the building-cam o is disconnected by depressing a lever r, so that the cam, being now free, will be rotated by the weight of the ring rail &c. until a projection p on the rotating cam wheel engages with a projection s on the treadle, the cam being brought to rest in a suitable position for giving a short upward and downward movement to the ring rail when the machine is re-started for the purpose. To ensure that the coils shall be wound in the right position, the winding quadrant g is provided with a stop l having two different levels m, m<1> for engagement by the usual catch lever n. When the catch lever n engages with the part m of the stop, the bodies. of the bobbins are being wound, and when with the part m<1>, the ring rail is at a level suitable for winding the coils c, d. The adjustment of the quadrant is effected in the usual manner by a pinion 2 and handle 3.
Patent GB-843597-A (GB)
Title: Improvements in the production of high percentage nitric oxide
Inventor: KRAUSS KURT
IPC: C01B21/26
Filed: 1959-04-02
Abstract: Nitric oxide is produced by reaction of ammonia (1 volume) with oxygen (1.28-1.4, e.g. 1.33 volumes) in presence of (a) a Pt (e.g. Pt-Rh) catalyst and (b) steam.  Preferably the steam is separated from the reaction gas by condensation as dilute nitric acid, the latter being used to wash the reaction gas; it is particularly preferred to treat the washed gas with an alkaline reagent such as 10% NaOH.
Patent GB-576210-A (GB)
Title: Improvements in self-sealing pipe couplings
IPC: F16L29/04
Filed: 1944-06-12
Abstract: 576,210. Valves. THOMAS, P. E. June 12, 1944, No. 11219. [Class 135] [Also in Group XXVIII] In a coupling of the kind in which both coupling members are provided with loaded valves, one of the valves being an annular member which seats on a part adapted to lift the other valve from its seat, the valves are loaded by an annular rubber member which is bonded to the valve or valve stem and to a fixed part of the coupling member. The valve 7 seating at 6 in the coupling member 4 has a bore 11 in its stem and across -bore 12 to allow fluid passage and the bonded rubber annulus 10 is also perforated. The annular valve member 18 which seats on the fixed member 14 and the other coupling member 3 has a skirt 19 to which the rubber annulus 20 is bonded. In a modification, the valves may be loaded by springs in addition to the rubber.
Patent GB-206449-A (GB)
Title: Improved method of manufacture of cellulose structures from viscose solutions
IPC: D01F2/08
Filed: 1923-04-25
Abstract: The strength of filaments and films prepared from viscose solution is increased by adding to the acid coagulating bath a nitrate or nitrite of a heavy metal, for example, iron nitrite or iron-ammonium nitrite. The addition is particularly applicable to the spinning of filaments from unripened viscose as described in Specifications 135,205, 152,349, and 181,330.
Patent GB-623305-A (GB)
Title: Improvements in or relating to the manufacture of iron from iron ore
IPC: C22B1/22
Filed: 1947-04-28
Abstract: In a process for the manufacture of iron sintered fine or dust iron ore is mixed with coal, heated in a coke oven where it is carbonized and the resultant coherent and homogeneous mass charged into a blast furnace.  The sintered ore may be mixed with a non-coking coal and briquetted before or after heating to 660 DEG C.  The blast furnace charge may also contain normal iron ore with or without coke.
Patent GB-827062-A (GB)
Title: Improvements relating to heat exchange apparatus
Inventor: BAUER STEFAN GEORGE
IPC: F28F1/12
Filed: 1955-04-19
Abstract: 827,062. Heat exchangers. ROLLSROYCE Ltd. April 9, 1956 [April 19, 1955], No. 11332/55. Class 64(3) In a heat exchanger, secondary surface disposed between the walls of a fluid passage consists of at least two matrices each comprising a series of strip-like elements of zig-zag form, the elements of each matrix being spaced apart and intercalated with the elements of another such matrix, each matrix being bonded at the location of the bends presented by the zig-zag formation of the elements thereof, to at least one of the walls defining the fluid passage. A matrix may comprise wires 10, preferably of flattened cross-section, interconnected by cross-wires 11 (Figs. 1 and 2) and Fig. 3 shows two such matrices arranged in a fluid passage defined between the walls of neighbouring tubes 12, the matrices being so intercalated that the wires 10 of one matrix alternate with and are staggered with respect to the wires 10 of the other matrix. The matrix may be formed from a metal sheet perforated and then bent to provide the interconnected strip-like elements of zig-zag form (Figs. 4 and 5, not shown). Specification 827,060 is referred to.