baber/WOPTO huggingface dataset:
Patent GB-1255333-A (GB)
Title: Pulse generating apparatus
IPC: F02P5/155
Filed: 1968-11-29
Abstract: 1,255,333. Electric correspondence control. COMPAGNIE DES COMPTEURS. Nov. 29, 1968 [Nov. 30, 1967], No. 56876/68. Heading G1N. [Also in Division F1]  The ignition circuit Q of an I.C. engine is controlled in dependence upon the angular position of a cam projection K<SP>1</SP> rotated with the crankshaft and affecting the impedance of a coil L included in an oscillator X such that oscillations are quenched when K<SP>1</SP> is adjacent coil L. The D.C. output at the oscillator terminal S is supplied to a pulse-shaping circuit Z which produces rectangular pulses at a rate proportional to the rate of rotation of K<SP>1</SP>. The train of pulses is passed to the ignition circuit Q and also to a frequency-responsive circuit Y which supplies a signal, proportional to the pusle repetition rate, to a transistor T<SP>1</SP>. Transistor T<SP>1</SP> controls the base bias of the oscillator transistor T such that the time delay between movement of the projection K<SP>1</SP> and a corresponding change in the state of the oscillator is variable with engine speed. Thus, for low-speeds, transistor T<SP>1</SP> conducts, R 2  shunts R 4  and the time delay is high and constant such  that the ignition advance is effectively zero; for increasing intermediate speeds, T<SP>1</SP> does not conduct, the voltage at point B increases rapidly and the time delay decreases rapidly such that there is a rapid advance in the point of ignition; for high-speeds the voltage at point B is constant and the time delay is low and constant such that the setting of the advance is constant. In alternatives, the time delay may be controlled by varying the value of R 1  and/or C 1 , or by varying the distance between the coil and the projection e.g. by having an irregular shaped projection or by making all or part of the projection displace as a function of the centrifugal force.
Patent GB-1206175-A (GB)
Title: Electrical filter and method of filtering
IPC: H01L29/00
Filed: 1967-12-15
Abstract: 1,206,175. Semi-conductor devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 15 Dec., 1967 [24 Dec., 1966], No. 57137/67. Heading H1K. A filter comprises a semi-conductor device having zones 2, 4 of the same conductivity type formed in a body 1 of semi-conductor material of the opposite conductivity type and arranged near one another so that in operation when a voltage is applied to zone 4 the space charge region associated with that zone can extend out to contact zone 2 and permit current to pass between the zones. If a square wave containing an interfering component of smaller amplitude is fed to zone 4 via terminals 10 and 11 an interference free output can be obtained from zone 2 via terminals 12 and 13. The operating voltage is dependent upon the spacing between the zones and the doping of the region between them.
Patent GB-1116860-A (GB)
Title: Electric statorless commutator motor
Inventor: KIFEV GEORGI KRISTEV
IPC: H02K5/14
Filed: 1966-12-21
Abstract: 1,116,860. Rotary brush machines; motor driving arrangements. NAUTCHNO-IZSLEDOVATELSKI I PROEKTNO-KONSTRUKTORSKI INSTITUT PO ELEKTROTECHNITCHESKA PROMISHLENOST. 21 Dec., 1966, No. 57309/66. Heading H2A. In a statorless commutator motor with a face commutator 3 and brushes 2 which bear against it, each brush is urged against the commutator in a direction which makes an angle a with the axis of rotation of the motor, the angle being related (in the specification) to the friction factor between the brush 2 and its holder 1. Preferably, as shown, the direction diverges from the motor axis.
Patent GB-1274340-A (GB)
Title: Improvements in slide projectors
Inventor: HIPELIUS JOHN W
IPC: G03B23/04
Filed: 1970-12-07
Abstract: 1,274,340. Slide projectors. BELL & HOWELL CO. Dec. 7, 1970 [Dec. 30, 1969], No. 57973/70. Heading G2A. In a stack-loading slide projector, slides are conveyed from stack 44 through a pre -viewing station 22 to a projection station 24 and back through a post-projection station 26, to a collecting chamber beneath the inlet station 20, the slides being carried in apertures 50 in a bi-directional rotary transport disc 14 beneath a housing 18 to which is attached a device 34 which permits the transport of single slides only in disc 14. Device 34 comprises a flexible arm 38 whose ends carry stops 36 to hold the next slide stationary as the bottom slide is transported. The spacing of stops 36 from slide support surface 48 is adjustable by means of screw 42. (For Figure see next page)
Patent GB-1192233-A (GB)
Title: Improved Fibrous Sheet Manufacturing Method and Apparatus.
Inventor: BOSSEN DAVID AUGUST
IPC: D21F1/06
Filed: 1967-05-01
Abstract: 1,192,233. Automatic control of fibrous sheet production. INDUSTRIAL NUCLEONICS CORP. May 1, 1967 [April 29, 1966], No. 58140/69. Divided out of 1, 192, 231. Heading G3R. The subject matter of this Specification is identical with that of Specification 1, 192, 231, but the claims relate to a system in which the moisture content and dry weight of a fibrous sheet formed from a layer of fibrous slurry emerging from a headbox are simultaneously maintained at predetermined values by automatic control, including control of the slurry emerging from the headbox, in dependence on measurements of dry weight and moisture content.
Patent GB-1235450-A (GB)
Title: Improvements in or relating to skid control systems for wheeled vehicles
IPC: B60T8/72
Filed: 1968-06-18
Abstract: 1,235,450. Anti skid systems; testing braking systems. KELSEY-HAYES CO. 18 June, 1968 [19 June, 1967], No. 58280/70. Divided out of 1,233,746. Headings F2E and F2F. The Specification relates to the anti-skid system described in Specification 1,233,746 but the claims differ.
Patent GB-1463667-A (GB)
Title: Process for preparing thioamides
IPC: C07D215/48
Filed: 1973-12-17
Abstract: 1463667 Thioamides JOHN WYETH & BRO Ltd 6 Dec 1974 [17 Dec 1973] 58308/73 Addition to 1432378 Heading C2C A process for making compounds of formula and acid addition salts thereof, wherein M is CSNHR<SP>4</SP>, R<SP>1</SP>, R<SP>2</SP> and R<SP>6</SP> are the same or different and represent H, CF 3 , or an alkyl, aralkyl or aryl radical, any of which radicals may be substituted by alkyl, alkoxy, NO 2  or CF 3 ; or R<SP>1</SP> and R<SP>2</SP> taken together represent an alkylene chain -CH 2 (CH 2 ) n CH 2 - wherein n is 1, 2 or 3, R<SP>7</SP> is H or one or more alkyl, aralkyl or aryl radicals any of which radicals may be substituted by alkyl, alkoxy, NO 2  or CF 3  and when R<SP>1</SP> and R<SP>2</SP> taken together form an alkylene chain the resulting ring may be substituted by one or more R<SP>7</SP> radicals as defined above, m is 1, 2 or 3 and R<SP>4</SP> is an alkyl radical, comprises reacting an analogous compound (II), but in which M is Na, K, Li, MgCl, MgBr or MgI, with R<SP>4</SP>NCS, and treating the product with hydrogen ions.
Patent GB-1380389-A (GB)
Title: Candle filter elements
IPC: B01D29/15
Filed: 1971-12-17
Abstract: 1380389 Candle filters for liquids MASON & MORTON Ltd 17 Dec 1971 58495/70 Heading B1D Liquid is filtered inwards through slits 27 in a tubular screen 16 which has a smooth outer surface, the slits diverging in width in a radially inward direction. Particles of a size of more than 100 microns are retained on the outer surface of the screen. The filtered liquid flows out of the filter through channels 25 in the head 14. As shown, the slits are parallel to the central axis of the filter; but alternatively the slits may be transverse. The angle of divergence of the slits is preferably between 80‹ and 90‹. The filter cake is dislodged from the outer surface of the screen by back-washing. The helical spring 17 within the screen is in a state of compression, and prevents possible collapse under mechanical or filtration pressures. The spring may be replaced by a core of cruciform cross-section. The screen may be made of nickel, titanium, stainless steel or chrome-nickel.
Patent GB-1390130-A (GB)
Title: Functional fluid compositions
IPC: C09K5/08
Filed: 1972-12-19
Abstract: 1390130 Hydraulic fluid MONSANTO CO 19 Dec 1972 [20 Dec 1971 27 March 1972] 58521/72 Heading C5F A fluid composition comprises (A) at least 50 wt. per cent of ester or amide of an acid of phosphorus, an ester of a di- or tricarboxylic acid, and/or an ester of a polyhydric compound and (B) from 0À1 to 10 wt. per cent of an epoxide compound of the formula wherein R 1  is-(CH 2 ) n COOR, -(CH 2 ) n -OCOR, -COR, -OR 1 , or -CH 2 OR where n = 0, 1, 2 or 3 and R is C 1-18  alkyl radical, R 2  is the same as R 1  or H or C 1-9  alkyl radical, and R 3  and R 4  are each H or a C 1-4  alkyl radical. The ester and amide of phosphanes may have the formula where Y is 0, S or R 13 N< ; Y 1  is O. S or R 14 N< and Y 2  is O, S and R 15 N< ; X is O or S; a, b and c are 0 to 1 and a+b+c=1-3 and R 10 -R 15  are alkyl, alkoxyalkyl, aralkyl, aroxyalkyl, aryl, aroxyaryl, alkoxyaryl and alkaryl radicals having up to 18 carbon atoms which radicals may be substituted with halogen. The esters may be the di- and tricarboxylic esters, polyethers and complex ester illustrated by general formulae in the Specification (these can include halogen substituted esters), and many examples of esters are listed. The base stock materials of the composition may also include silicate esters, silicones, fluids derived from coal products, alkylene and alkylene oxide polymers, alkyl benzenes, polyphenyls, halogenated polyphenyls, naphthenic based, paraffinic based and mixed base mineral oils, polymerized C 8-20  alpha olefins, halogenated benzene, halogenated lower alkyl benzenes and monohalogenated phenyl ethers. Additives may also include polymers of alkyl esters of unsaturated monocarboxylic acids (many listed), polycyclic polymers, polyurethanes, and water. The examples illustrate compositions containing the epoxide compound, organic phosphorus esters; polyalkyl methacrylate ; polyalkylacrylate;1,2-bis(phenylmercapto) ethane and water.
Patent GB-1389860-A (GB)
Title: Conduction pump for liquid metal
IPC: H02K44/02
Filed: 1972-12-20
Abstract: 1389860 Pumps operating by electromagnetic Interaction with fluids POUR LES ACTIVITES ATOMIQUES ET AVANCEES 20 Dec 1972 [22 Dec 1971] 58942/72 Heading H2A In a conduction pump for liquid metal in which a duct 1 for the liquid metal is disposed vertically in the air gap of a magnetic circuit 3 and in which current induced in a coil 7 is passed through the liquid in the duct at the air gap at right angles to the duct and the magnetic field in the air gap, the coil comprises a hollow refractory casing 8 containing liquid metal and is connected to the duct through end pieces 9, 9<SP>1</SP> each having at least one opening providing communication between the interiors of the duct and the coil casing. The end pieces 39, 39<SP>1</SP>, Fig. 4, have a plurality of openings 30a ... 30<SP>1</SP>a ..., this construction preventing the flow of liquid in the duet setting up eddy flows in the liquid in the end pieces. There may be corresponding openings in the parts of the coil adjacent the end pieces, Fig. 3 (not shown). The cross-sections of the openings in the end pieces may decrease progressively from the bottom of the end pieces to the top, Fig. 5 (not shown). The windings 4, 6 of the magnetic circuits 3, 5 are supplied with A.C.
Patent GB-1487739-A (GB)
Title: Rotary mechanical face seals
IPC: F16J15/36
Filed: 1973-12-19
Abstract: 1487739 Mechanical seals CRANE PACKING Ltd 17 Dec 1974 [19 Dec 1973] 58998/73 Heading F2B In a sealing arrangement, e.g. for a stirrer for a chemical reaction vessel, in which coolant is circulated in the space between two concentric end face seals 6, 7, the inner seal 7, at least, has a bellows 17, either bonded thereto or integral therewith. The bellows and seal may be of P.T.F.E. An internal telescopic support 19, 20 and metal reinforcements 18, 22 are provided. The seals 6<SP>1</SP> and 7 may alternatively be of carbon. Any coolant leaking out of the seal can be drained off at 16.
Patent GB-1191409-A (GB)
Title: Heat Transfer Agents.
Inventor: WUNDERLICH HERMANN
IPC: C09K5/10
Filed: 1968-12-12
Abstract: 1,191,409. Ditolyl ethers. FARBENFABRIKEN BAYER A.G. 12 Dec., 1968 [28 Dec., 1967], No. 59205/68. Heading C2C. [Also in Division C4] In an example a mixture of the six isomeric ditolyl ethers is prepared from a mixture of equal parts of o- and p-chlorotoluene containing some m-chlorotoluene by heating with 15% aqueous sodium hydroxide for one hour at 360‹ C. and 250 atmospheres pressure.
Patent GB-1254366-A (GB)
Title: Inverter circuit
Inventor: KAWAKAMI CHUJI
IPC: H02P27/06
Filed: 1969-12-04
Abstract: 1,254,366. Inverting; control of A.C. motors. MEIDENSHA K.K. 4 Dec., 1969 [6 Dec., 1968 (2)], No. 59249/69. Headings H2F and H2J. In an inverter operable from a variable D.C. voltage source 1, an auxiliary D.C. source 19 is switched in by means of auxiliary thyristors 20, 21 so as to ensure correct commutation when the variable voltage source 1 has low value. As described, the main thyristors 3 . . . 6 are turned on in pairs by variable frequency pulses so as to control the speed of induction motor 2. The input voltage 1 is varied so that V#f. The main thyristors 3 . . . 6 are commutated by inductors 9, 10 resonating with capacitors 7, 8, switched in by thyristors 11 ... 14, 20, 21. In Fig. 3 (not shown) the eight inductors 9, 10 are replaced by four inductors each common to an appropriate pair of circuits. In Fig. 4 (not shown) only a single D.C. supply is employed being connected directly to the commutating thyristors 20, 21 and via a specified thyristor chopper circuit to the inverter. The bridge circuit shown may be replaced by a centre-tapped transformer type.
Patent GB-1434070-A (GB)
Title: Artificial leather sheet material and production thereof
IPC: C08J9/28
Filed: 1973-12-27
Abstract: 1434070 Microporous polyurethanes KANEBO Ltd 27 Dec 1973 [28 Dec 1972] 59836/73 Heading C3R [Also in Divisions B1-B2] Microporous polyurethanes are prepared in a conventional manner from polyurethanes which are the reaction product of a polyol comprising at least 50% by weight of polydipropylene adipate, an organic diisocyanate and a chain extending agent. When the polyol comprises less than 100% polydipropylene adipate, the remainder may be a polyether or another polyester. The chain extending agent may be a glycol or a diamine.
Patent GB-1283640-A (GB)
Title: Fluid pressure device
IPC: F15C1/06
Filed: 1970-12-18
Abstract: 1283640 Regulating fluid-flow BENDIX CORP 18 Dec 1970 [5 Jan 1970] 60118/70 Addition to 1136533 Heading G3H A confined jet fluid-pressure amplifier 10 has its jet receiver 18 formed with a plate 32, the plate being either in the form of a disc having a plurality of holes, Fig.3 (not shown), or in the form of a wire mesh element, Fig. 4 (not shown). The inclusion of the plate within the receiver is said to increase gain and reduce noise level.
Patent GB-1246688-A (GB)
Title: Monitoring angular velocity of vehicles
IPC: B61F5/22
Filed: 1968-12-20
Abstract: 1,246,688. Controlling vehicles travelling through curves. KNORR-BREMSE G.m.b.H. 20 Dec., 1968 [22 Dec., 1967], No. 60844/68. Heading B7L. [Also in Division G1] In an arrangement for tilting a vehicle body inwardly, to counteract centrifugal force, as the vehicle describes a curved path, the angular velocity w and angular acceleration w<SP>1</SP> of the vehicle are both sensed and the signals for both are preferably subjected to a logical circuit, before being amplified and applied to pneumatic or other means to tilt the vehicle body. In a rail vehicle, the approach to a curve in the track is sensed immediately by a constrained gyro 1, having metering means 2 with separate outputs 3-6 ( + w, + w<SP>1</SP> for a right hand curve and -w, -w<SP>1</SP> for a left hand curve) and by a pendulum 27. The positive outputs make AND gate 19 conductive and the negative outputs make AND gate 23 conductive. Thus, according to the direction of the curve, OR gate 38 or OR gate 39 becomes conducting and closes switches 54, 55 or 58, 59. An angular velocity, of either sign, closes switch 50 and the consequential output signal SN cancels the action of the conventional pneumatic stabilizer. The output signal SR or SL institutes tilting of the car body by transferring air from the inner to the outer air springs and the output signals SNR or SNL are used to maintain the tilt axis at a constant height. If tilting proceeds too rapidly, contacts 28 or 29 open and AND gate 19 or 23 is blocked to stop the tilting. On reaching a section of track of constant curvature, w<SP>1</SP>=0, and gate 19 or 23 is blocked, so the inclination remains constant, while the vehicle travels at a constant linear speed over this section. As soon as the carbody is tilted, tilt switch 32 is closed. As the curvature of the track decreases and the vehicle approaches a straight section, w<SP>1</SP> changes sign to make either AND gate 20 or AND gate 22 conductive and thus apply output signals SL, SNL or SR, SNR, respectively, to return the car body to the upright position. When this position is reached, gates 20, 22 are blocked by switch 32 opening. On reversing the vehicle, the reversal in polarity of a D.C. generator 13, alters switch 7 to make the appropriate changes in the AND gate inputs. When the vehicle is running slowly, the voltage generated is insufficient to close switch 18 and no tilting action is produced. The AND and OR gates may be replaced by six NAND gates.
Patent GB-674989-A (GB)
Abstract: 674,989. Knitting. BRITISH CELANESE, Ltd. Sept. 13, 1950 [Sept. 15, 1949], No. 23837/49. Class 74 (ii). A knitted fabric comprises alternate groups of yarns of filaments of a cellulose ester of a carboxylic acid (e.g. cellulose acetate) or a cellulose ether and yarns of filaments of oriented synthetic linear polymer (e.g. nylon). The fabric may be two-bar warp-knitted in which, between successive courses, each yarn of the back-bar moves from wale to wale and each yarn of the front bar from one wale to the next but one; or one in which the yarns of one or both bars move over a greater distance, or a three-bar or more complex warp fabric; or the fabric may be circular or flat weft knitted. The polymer yarns of the two bars of the two-bar warpknitted fabric are knitted into the same parts of the fabric. The fabric is scoured, using hot water or steam, with or without dying and thereafter finished, a ribbed effect being obtained, at least in part due to differential shrinkage, the ribs running perpendicular to the courses in the case of the warp-knitted fabrics and parallel to them in the weft-knitted fabrics. The method of knitting may be such as to produce, per se, a striped or other patterned effect. The nylon yarns may be fed under higher tension than the cellulose acetate yarns. Examples of the first yarn are cellulose acetate, propionate, acetate-propionate or acetate-butyrate ; or ethyl cellulose. Examples of the second yarn are polyamides such as cold-drawn nylon 66 or those from polymethylene diamines and polymethylene dicarboxylic acids; or polyurethanes, e.g. those obtainable from polyalkylene glycols and polyalkylene di-isocyanates or from polyalkylene diamines and chloroformic esters of polyalkylene glycols; or polyaminotriazoles described in Specifications 612,609 and 613,020, [both in Group IV (a)]; or polyesters, e.g. those obtainable from terephthalic acid and a polyalkylene glycol; or copolymers of vinyl chloride with a minor proportion of vinyl acetate; or acrylonitrile polymers (including copolymers such as those with vinyl chloride or methacrylonitrile).
Patent GB-703450-A (GB)
IPC: E04B5/43
Abstract: 703,450. Columns. WILLIAMS, Sir E. O. July 25, 1952 [July 31, 1951], No. 18123/51. Class 20 (4) A building construction for floors and flat roofs 10, Fig. 2, comprises equispaced supporting columns 11, from each of which, at a point between the head and foot thereof, a number of inclined supporting struts 12, 17, extend upwardly to form an open-groined vaulting support- .ing the floor or roof. As shown in Fig. 1, in which the columns 11 extend in two rows at right angles, the spacing distance D between column centres is divided by three in each direction and each column has eight struts supporting the eight respective intersection points of the lines d round the column, the struts 17 supporting the diagonal intersection points x<SP>1</SP> being thicker than those 12 supporting the medium intersections x. The reinforced concrete columns 11 have octagonal cross sections, recesses 13 being provided in each face above a platform 14 to receive the lower ends of the struts 12, 17, the columns being tapered upwardly and downwardly from the meeting point. The upper ends of the struts are embedded in octagonal junction blocks 15 centred on platforms 18 formed at the intersections of dependent beams 16 integral with the cast roof slab 10. In a modification the centres of adjacent columns define equilateral triangles, each column having six equal struts the junction points of which with the roof or floor lie on the lines joining the column centres.
Patent GB-779268-A (GB)
Abstract: 779,268. Cooking stoves. SMITH & WELLSTOOD, Ltd. Aug. 17, 1955 (Aug. 31. 1954], No. 25226/54. Class 126  A solid fuel cooking stove comprises a fire-box and at least one oven formed as separate units and mounted on a base plate or plates. Ovens 2, 3 are made as separate units and mounted 'on the base plates 4, 5 on either side of the firebox unit 1 within a casing. The casing, ovens, firebox and other parts of the cooker can be packed separately for transport. The oven doors. and firebox door, are mounted on the casing, which forms a separate unit
Patent GB-2000222-A (GB)
Title: Air compressing reciprocating internal combustion engine
IPC: F02B23/06
Filed: 1978-06-07
Abstract: Combustion air is admitted to a combustion chamber (5) via an inlet (7) which directs the air to form a swirling air flow which rotates about the axis of the chamber. A fuel injector (9) injects a fuel stream into the path of rotating layers of the combustion air. The problem solved by the invention is to keep the free oxygen proportion in the combustion air at a minimum in a hot combustion region, and to ensure that outside the combustion region no combustible fuel-air mixture is formed and that the temperature in the combustion chamber is maintained below the level required for the formation of NOx compounds. The problem is solved by matching the amount of fuel injected to the mass of combustion air which is applied to the injected fuel stream in a stoichiometric ratio. <IMAGE>
Patent GB-2026312-A (GB)
Title: Collapsible seats
IPC: A47C4/02
Filed: 1978-07-21
Abstract: An upholstered seat unit comprises a hollow base (10), a separate back rest (12) which can be removably fitted thereto, one or more detachable cushions (66, 68), and if desired detachable arm rests (11), the back rest, cushions and arm rests (if present) being stowable within the hollow base. The base has a flat resilient suspension unit (32) extending across the top, preferably from side to side. The base preferably comprises a frame of corner uprights (14, 16) joined by horizontal upper and lower members (18, 20, 22, 24, 26, 28) and having a cover, preferably removable, which may be individual to the base or shaped to cover also the back rest and possibly also the cushions. Tubular corner uprights (16) may be provided to receive stub tubes or rods of the back rest and possibly also the arm rests if present. <IMAGE>
Patent GB-2005537-A (GB)
Title: Preparing Medicinal or nutrient pellets for oral administration to ruminants
IPC: A61K9/30
Filed: 1978-08-31
Abstract: Pellets for oral administration to ruminants comprising a core of pH greater than 5.5, containing a medicament or nutrient beneficial to the ruminant post-ruminally in the abomasum and/or intestines, and having a rumen-resistant coating, are prepared by (a) incorporating into or coating onto the cores a basic substance physiologically acceptable to ruminants, to bring the cores to a pH greater than 5.5, and (b) coating the cores with a polymer resistant to the environment of the rumen but susceptible to breakdown in the abomasum.