baber/WOPTO huggingface dataset:
Patent GB-366215-A (GB)
Title: Improvements relating to electrical machines, apparatus and appliances of the flame-proof type
IPC: H02K9/24
Filed: 1930-12-15
Abstract: 366,215. Preventing fires. VERITYS, Ltd., Plume & Victoria Works, Aston, Birmingham, and SMALLWOOD, H. W., 112, Rectory Road, Sutton Coldfield. Dec. 15, 1930, No. 37717. Drawings to Specification. [Class 47 (ii).] A flame-proof ventilating joint for the casings of electrical machinery is produced by making one of the jointing-surfaces plane and forming the other with a number of shallow curved or sinuous grooves producing, in co-operation with the plane face, shallow passages of a similar shape.
Patent GB-1262450-A (GB)
Title: Capacitor discharge ignition system
IPC: F02P7/03
Filed: 1970-08-06
Abstract: 1,262,450. Ignition systems; timing ignition. MOTOROLA Inc. Aug. 6, 1970 [Aug. 22, 1969], No.38011/70. Heading F1B. A control circuit for a capacitor discharge ignition system of an internal-combustion engine has a generator device 10, 14, 16 driven in synchronism with the engine for producing electrical pulses and a detector circuit including the transistors 22, 24, responsive to the pulses reaching a given level to discharge the ignition capacitor 25 to produce an ignition pulse for operating the engine, the generated pulses reaching the given level in a timed relation to the engine RPM to provide spark advance. The control circuit is connected to the detector circuit and has a first circuit including a diode 114 and capacitor 116 associated with a transistor 100 connected thereto for operating the same to a first condition for reducing the sensitivity of the detector circuit during the initial period from engine starting until the engine speed reaches a predetermined RPM thereby maintaining a substantially constant rate of spark advance during the period and a second circuit including the diode 110 and capacitor 122 connected to the control circuit and responsive to the engine speed exceeding the predetermined RPM to operate the control circuit to a second condition to render substantially full sensitivity to the detector circuit so that the generated pulses reach the given level in a timed relation to the RPM thereby providing a spark advance.
Patent GB-1472196-A (GB)
Title: Natural gas liquefaction process
IPC: F25J1/02
Filed: 1974-08-30
Abstract: 1472196 Liquefying natural gas EXXON RESEARCH & ENG CO 30 Aug 1974 [14 Sept 1973] 38036/74 Heading F4P A process for liquefying natural gas in exchanger 10 by means of a multi-component refrigerant which gives up the heat it receives from the natural gas to ambient at 30, includes a second refrigerant circuit, separate from the multi-component refrigerant circuit, which pre-cools the natural gas at 56a to a temperature above that at which hydrates form and which gives up the heat gained from such pre-cooling to ambient at 54, the pre-cooled natural gas being then dried at 16, and further cooled for removal of heavy hydrocarbons at 20 prior to liquefaction upon re-entry to exchanger 10. The cooling step between 16 and 20 may be effected by the second refrigerant circuit (Fig. 4, not shown). The second refrigerant is preferably propane.
Patent GB-883957-A (GB)
Title: Improvements in and relating to propylene polymerisation
Inventor: PORTER DAVID JOHN BRETTON
IPC: C08F10/00
Filed: 1958-11-26
Abstract: In a process for propylene polymerization propylene is brought into contact with a catalyst obtained from (a) a crystalline material of aluminium, titanium and chlorine in which the titanium is substantially all in the trivalent state and the atoms of Al, Ti and Cl are bound together in crystal lattices, the crystalline nature of which is shown by X-ray diffraction, the material being stable at 1 mm. absolute pressure, (b) an aluminium trialkyl or dialkyl aluminium chloride and (c) an organometallic compound of zinc, in which the molar ratio of the zinc compound to the aluminium compound is 0,002:1 to 0,2:1.  The crystalline material may be produced by reducing titanium tetrachloride with aluminium and preferably has a Al:Ti:Cl ratio of 1:3:12.  The organo metallic compounds may be zinc and aluminium ethyls and propyls.  Polymerization may be effected in an inert (e.g. hydrocarbon) diluent, and the catalysts decomposed and products purified by treatment with water, steam, alcohols, acids or alkalis.  The products may be compounded with rubbery polymers of isobutylene.  Specification 835,152 also is referred to.
Patent GB-369626-A (GB)
Title: Improvements in or relating to apparatus for recording and reproducing sound and to record discs
IPC: G11B19/265
Filed: 1930-12-18
Abstract: 369,626. Sound recording and reproducing apparatus. BOSCO, A., 36, Via XX Septembre, Genoa, Italy. Dec. 18, 1930, No. 38158. Convention date, Jan. 4. [Class 40 (ii).] Apparatus for recording sound on a disc in a spiral of constant pitch and with constant linear tracking speed of stylus, comprises a ribbon 5, which is adapted to be unwound from an arbor 4 on the turntable shaft 3 at constant speed, and a roller 27 maintained in contact with the ribbon 5 on the arbor 4 and connected with the stylus so as to move the latter radially of the disc during unwinding of the ribbon. The ribbon 5, which has a thickness equal to the pitch of the record spiral, is adapted to be wound by a co-operating driving cylinder 6 on to a cylinder 7 which is slidably mounted between upper and lower rails 15, 16 so as to be displaced outwardly against a spring 13 as the winding action proceeds. The cylinder 7 is also guided by lateral rollers 17 engaging rails 17<1>. When the ribbon is entirely wound on to the cylinder 7, the latter actuates a switch to cut off the supply to a motor 18 which drives the cylinder 6 by means of a shaft 8 and clutch 9. The ribbon 5 is supported on the arbor 4 by groups of conical rollers, or between discs 25, 25<1> and on bars 26. A spring-pressed brake 29 acting on the shaft 3 prevents undue unwinding of the ribbon 5. The roller 27 engages the ribbon under the action of a spring 28 and is connected with the stylus holder 33 by a slidable member 34<1> and a pair of rigidly-connected members 3411, 34<111>. For reproducing purposes, the stylus is carried by an ordinary swinging arm. The Specification as open to inspection under Sect. 91 (3) (a) also describes the ribbon as of bent or notched form to prevent undue winding. This subject-matter does not appear in the Specification as accepted.
Patent GB-1169945-A (GB)
Title: Pharmaceutical Compositions containing Diphenylalkyl-amine Derivatives
Inventor: JONES GERAINT
IPC: A61K31/135
Filed: 1966-08-25
Abstract: 1,169,945. Diphenylalkylainine-containing compositions. ED. GEISTLICH SOHNE A.G. FUR CHEMISCHE INDUSTRIE. 11 July, 1967 [25 Aug., 1966], No. 38196/66. Heading A5B. A pharmaceutical composition comprises at least one diphenylalkylamine derivative of the general formula: wherein R<SP>1</SP> is H or alkyl, R<SP>2</SP> is alkyl and either or both of the phenyl radicals A and B may optionally be substituted with one or two substituents selected from halogen atoms, trifluoromethyl, alkyl and alkoxy radicals or an acid addition salt thereof and a pharmaceutically acceptable diluent or carrier. The compositions are stated to have antidepressant activity.
Patent GB-970636-A (GB)
Title: Improvements in and relating to dynamo-electric machines cooled by air and provided with dust extractors
IPC: B61C3/00
Filed: 1962-10-09
Abstract: 970,636. Cooling dynamo-electric machines. HEEMAF N.V. Oct. 9, 1962 [Nov. 13, 1961], No. 38224/62. Heading H2A. [Also in Division B1] In a dynamo-electric machine, e.g. traction motor, having on its rotor shaft 1 a suction fan 5 for producing an internal cooling air flow through inlet and outlet openings 6, 7 in its housing 3, the housing is provided or integral with at least one dust extractor comprising an air conduit 8 which is parallel with the machine axis, has its outlet opening 12 discharging to the suction side of the fan so as to by-pass the machine interior, and has in its wall near its entrance 9 a louvred opening 10 which either forms or is directly connected to the inlet opening 6. By this construction dust and water pollution of the air entering at 9 flows through the conduit 8 whilst cleaned air flows through the machine interior. The rectangular-section sheet metal conduits shown are removable for cleaning.
Patent GB-339502-A (GB)
Title: Improvements in garden shears, secateurs and the like
IPC: A01G3/02
Filed: 1929-12-13
Abstract: 339,502. Reynolds, D. B. Dec. 13, 1929. Shears. - Garden shears, secateurs, and the like have a curved convex cutting blade b closing against a similarly shaped abutment blade a, which may be divided to enclose a fibre or other block e. The pivot d is arranged on or offset from the centre line of the shears.
Patent GB-1076932-A (GB)
Title: Multistable circuit
IPC: H03K3/29
Filed: 1964-09-18
Abstract: 1,076,932. Transistor multi-stable circuits. DIGITAL EQUIPMENT CORPORATION. Sept. 18, 1964 [Sept. 19, 1963], No. 38298/64. Heading H3T. In a circuit comprising at least three inverting AND circuits (10 ... 16), the output of each being coupled to the input of each other circuit, separate input terminals (18 ... 24) are provided in such a way that application of a transient binary 1 to any one input terminal results in a persistent 1 at that terminal and a 0 at all other input terminals. Each stage may comprise a diode AND circuit (26) feeding an inverting transistor (Q1), the interconnections being such that only one transistor is conductive at any time.
Patent GB-1359622-A (GB)
Title: Single and parallel power transmission system
IPC: F16H37/00
Filed: 1972-08-17
Abstract: 1359622 Power transmission assemblies H D SWAINE 17 Aug 1972 38383/72 Heading B7H A power transmission assembly for transmitting power from one or more power sources to the driving means of a road or rail vehicle, boat or aircraft, or other driven part comprises a generally rectangular housing 1 with bearing 2 in opposite sides, a transverse transmission shaft 3 mounted in the bearings 2 and carrying a crown wheel 4 vertically arranged in the housing, the shaft 3 protruding from each side of the housing and carrying one-way clutches 5 which are arranged in pairs consisting of one clutch on each side of the housing and incorporate pulleys or sprockets 6 for connection by driving belts or chains 7 to respective power sources such as pedals or an I.C. engine or electric motor, and a bearing 10 at one end of the housing supporting a shaft 9 which carries a pinion 8 meshing with the crown wheel 4 and a flange 11 for connection to a driven part. A further bearing 14 at the other end of the housing 1 supports a shaft 13 which carries a second pinion 12 meshing with the crown-wheel 4 and a flange 15 for connection to another driven part. Some of the one-way clutches 5 are lockable when desired by means of friction collars splined or keyed to the shaft 3 and acted upon through thrust bearings 16 by wedges 22 movable against the force of anchoring springs 23 by control cables or rods. The power transmission assembly may also be used to provide drives from one or more power sources to driven means in a factory or workshop.
Patent GB-344096-A (GB)
Title: Improvements in thermionic valve amplifying and/or detecting systems
IPC: H03F1/50
Filed: 1929-12-14
Abstract: 344,096. Valve amplifying circuits. MIDGLEY, A. H., Fairfield, Harefield Road, Uxbridge, Middlesex. Dec. 14, 1929, No. 38396. [Class 40 (v).] In a thermionic amplifier or detector a single supply source H1, H2 furnishes both anode potential and grid-biasing potential, while the grids of the valves after the first are connected directly to a resistance connected between the negative terminal of the source and the plate of the preceding valve. The Figure shows resistances I, I1 shunted by condensers C1, C2 of low impedance at the marking frequency of the amplifier arranged to render the cathodes positive with regard to the negative terminal of the source so that the grid may be negatively biased. The impedance I3 for the last valve may be the field winding of a moving coil loud-speaker. By making the impedances in the cathode leads common to a pair of valves and by suitable choice of the nature of these impedances high or low frequencies may be accentuated or suppressed. Grid bias for the first valve may be obtained from potentiometer P and resistance K as shown or a resistance may be connected between the cathode and the potentiometer at a point of approximately the same potential as the cathode. The grid is biased from the potentiometer as previously.
Patent GB-369576-A (GB)
Title: A process of incorporating rubber with cellulose derivatives
IPC: C08L7/00
Filed: 1930-12-20
Abstract: In the manufacture of a leather or rubber substitute, a rubber p solution is mixed with a plastic mass prepared by precipitating a cellulose derivative from a solution of it containing at least one plasticizer capable of co-precipitation by adding a precipitating liquid miscible with the solvent (or if a solvent mixture, with one of the constituents or, in addition, also non-miscible with one of the constituents).  The rubber may be dissolved in a solvent miscible either with the precipitating agent or the mixture of precipitating agent and cellulose derivative solvent.  In addition the mixture may also contain natural or artificial resins, dextrin, glucose, grape sugar, cellulose ethers, glue, gelatin, agar-agar, alkali silicate, oils, glycerine, sulphonated oils or fatty acids.  As plasticizer tricresyl phosphate, triacetin, or esters of phenols or polyphenols may be used.  In examples the nitrocellulose solvent is (1) a mixture of acetone, methylated spirit and ether and (2) acetone; the precipitant in both cases is water, and the rubber is in solution in benzene.  The material is then made into a rubber or leather substitute by any known process, e.g. spreading, calendering or moulding either on a suitable backing or by including fibrous material in the mixture.
Patent GB-864984-A (GB)
Title: Glass tube drawing
IPC: C03B35/26
Filed: 1958-11-28
Abstract: 864,984. Drawing glass tubes and rods. CORNING GLASS WORKS. Nov. 28, 1958 [Nov. 29, 1957], No. 38492/58. Class 56. A method of continuous drawing glass tubing or the like comprises downwardly flowing the tubing from a parent body of molten glass, translating such downwardly flowing tubing into a horizontal flow path to a remote point, exerting a pull on the tubing at such point while imparting a turning torque to the remote end of the tubing and while imparting a similar turning torque to the tubing at spaced intervals along its length from an independent power source. The tubing 12, drawn downwardly from a container 11 of molten glass, is turned on to a horizontal path and drawn by a tractor 40 which also imparts a turning movement thereto. The tubing is supported at intervals by a series of pairs of rollers 16, 17 on tubular shafts 18, 19 supported in overlapping relation by rollers 21, 22 on drive shafts 24, 25 and a roller 26 adjustably mounted at 27 on the frame 31 for varying the overlap according to the size of the tubing 12. The rollers 16, 17 may be cooled by passing air through the shafts 18, 19 from a manifold 30. A number of shafts 18, 19 may be arranged end to end along the runway. The shafts 24, 25 extend the full length of the runway and-are driven from a variable speed motor 35 through a reduction gear and drive chains 32, 38, the speed of rotation of motor 35 being adjusted to cause the rollers 16, 17 to impart a turning movement in accordance with that imparted to the tubing by the tractor 40. In suggested alternative arrangements, two graphite faced rollers of substantial length mounted on driven shafts laterally spaced to afford clearance between the rollers may be placed at the entrance end of the runway or a number of overlapping rollers may be mounted on driven shafts. Specification 349,315 is referred to.
Patent GB-963784-A (GB)
Title: Improvements in or relating to siloxanes
IPC: C08G77/50
Filed: 1962-10-12
Abstract: An intermediate organosilicon polymer consisting essentially of (1) at least 2 units of the formula: <FORM:0963784/C3/1> and (2) units of the formula RdSiO <FORM:0963784/C3/2> , in which each R and each R1 is a monovalent hydrocarbon (saturated or unsaturated) or halo-hydrocarbon radical, a is 2 or 3, b is 0 or 1, the sum a + b in any unit (1) is not greater than 3, c is 1, 2 or 3, d is 0, 1 or 2 and Z is a divalent hydrocarbon radical of 2 to 18 C atoms and free from aliphatic unsaturation, there being in each molecule an average of 1.3 to 2.0 R radicals per Si atom and at least 7 units of (2), may be made by reacting siloxanes containing SiH groups with silanes of the formula: <FORM:0963784/C3/3> in which R11 is a monovalent hydrocarbon radical containing -c=cgroup, in the presence of a Pt catalyst at 30 DEG  to 150 DEG C.; alternatively the siloxanes may contain SiR11 groups and the silanes the SiH groups.  The products can be used a one-component room temperature-curing resins and rubbers, by mixing them with a condensation catalyst and exposing them to moisture.  Numerous examples of curing catalysts are given typical classes of which are:-certain organic amines, phosphoric and carboxylic acid salts of basic amin compounds, carboxylic acid salts of quarternary ammonium hydroxide and certain metal carboxylates. Pigments, heat stabilizers, fillers perfurmes and plasticizers may also be added.  In a typical example (1), a mixture of a xylene solution of <FORM:0963784/C3/4> and a solution of chloroplatinic acid in dimethyl phthalate, was refluxed for 24 hours to yield, after removal of solvent, a liquid polymer of the formula: <FORM:0963784/C3/5> in which Me = methyl.  This liquid was catalysed with di-n-hexylamine and cured on exposure to air to a rubbery gel. Specification 684,296 and U.S.A. Specification 2,662,909 are referred to.
Patent GB-1275220-A (GB)
Title: Device for making foundry moulds
Inventor: GEIDEBREKHOV GEORGY ANDREEVICH
IPC: B22C15/272
Filed: 1970-08-22
Abstract: 1275220 Moulding machines KRAMATORSKY NAUOHNO - ISSLEDOVATELSKY I, PROEKTNO - TEKHNOLOGICHESKY INSTITUT MASHINOSTROENIA 12 Aug 1970 38845/70 Heading B3F A foundry moulding machine includes an air-operated presser head 6 of the type in which air contacts the sand during pressing and foundry rigging comprising a flask 9, a bottom board 8, and an upset or filler frame 10. The presser head is pivotable about a vertical column 1 to a position above the flask and bottom board. During pressing of the sand, clamps 13 hold the foundry rigging to the presser head. Each clamp 13 at one end engages a lug 17 (Fig. 3) on the bottom board 8 and at the other end is pivotable about a shaft 14. An eccentric 15 having a flat part 20 is held fast on the shaft 14 and a piston and cylinder 18, articulated to the clamp 13, has its piston-rod 19 articulated to the eccentric 15. The shaft 14 bears within an elongate aperture in the pressure head 6 and the eccentric bears on a fixed plate 16. Thus, exhaustion of the cylinder results firstly in the clamp 13 lowering in the lug and then an outward swing- ing movement of the clamp to the position shown in broken lines in Fig. 3.
Patent GB-881346-A (GB)
Title: Improvements in or relating to driving transmissions for the rear and front wheels of motor vehicles
Inventor: TAPP ERNEST THOMAS JAMES
IPC: B60K17/30
Filed: 1958-12-02
Abstract: 881,346. Motor vehicle driving arrangements. COUNTY COMMERCIAL CARS Ltd. Dec. 2, 1959 [Dec. 2, 1958], No. 38895/58. Classes 79(2) and 79(4). A vehicle has a pair of steerable wheels and a pair of non-steerable wheels, the latter being driven through a differential directly from the output shafts thereof or indirectly through a gearing embodying a layshaft, a drive being taken from each output shaft of the differential gear, or layshaft driven thereby, to a wheel of the steerable pair. The steerable wheels are mounted upon shafts supported in bearings in gear cases carried on a supporting structure which is pivotally connected to the vehicle so as to be able to rock about a fore and aft axis, the gear cases being mounted. for pivotal movement about an up and down axis. The differential gear 10, Fig. 1, may drive the layshafts 11 and, through spur gearing 14, 15, the half axles 12 of the non-steerable wheels 13. The layshaft 11 is provided with a braking arrangement comprising brake shoes 16 and drum 18 fixed to a casing 19 surrounding the layshaft and fixed to the differential casing 9. A shaft 30 is driven from each layshaft 11 through a universal joint 25 and bevel gearing 20, 23 and the hubs 48 of the steerable wheels 41 are driven through bevels 50, 49, and universal joints 44 from the shafts 30. The shaft 30 terminates in a member 32, Figs. 3 and 4, provided with two ball races 40 which co-operate with grooves 29 in a cylindrical member 27 to provide a driving, telescopic joint. The wheels 41 are mounted for steering movement in bearings 8 carried by a bracket 51 mounted on a cross arm 52. The cross arm 52 is provided with a rearwardly extending yoke piece 53 and the arm 52 and yoke 53 are pivotally supported upon an arm 54 carried by brackets 66 and 56 attached to a box girder 57 pivoted at 2 to a strengthened portion 59 of the vehicle body (Fig. 2) and also attached to the body by pivoted links 64 and to the radiator mounting 67 by lugs 68 and a removable pin 69. A hook 71 is provided on the forward end of the member 57 and a draw bar 60 extends rearwardly of the vehicle.
Patent GB-342843-A (GB)
Title: A spindle for braiding machines with external weight
IPC: D04C3/14
Filed: 1929-12-20
Abstract: 342,843. Braiding - - machines. LARMUTH, W.O., Todleben Iron Works, Unwin Street, Salford.-(Ostermann, W. & M.; 92, Gewerbeschulstrasse, Barmen, Germany.) Dec. 20, 1929, No. 39007. [Class 74 (i).] The weight f which actuates the bobbin-carrier controlling lever r of a braiding-machine is guided by a bifurcated wire member e. Alternatively, the bifurcated member may be replaced by two separate guide wires connected together at the top. A tension spring n secured to an upward extension of the weight is provided for counteracting the effect of centrifugal force upon the weight.
Patent GB-390313-A (GB)
Abstract: 390,313. Frying-ranges. RAYNER, B., 45, Linskill Terrace, North Shields. March 15, 1932, No. 7676. [Class 126.] Baffles; grates. -A port or passage k leading from the hood e to the chimney flue of a frying-range is provided with a door k<1> controlled by the movement of the hood cover. In the range shown, a flexible connection n attached to the hinged door k<1> and to the sliding cover of the hood closes the door when the cover is down, and allows the door to open under the action of a spring m when the cover is raised, the fumes then passing direct to the chimney by the passage k. When the passage k is closed, the fumes pass by a conduit g to the ashpit and thence through the fire, or, when a damper j<1> is open, through a secondary flue j to the main flue c. A hinged baffle or damper p<1> controls the passage of the gases from the fire to the flue c and directs them on to the rear part of the pan, and the outlet to the flue c is further controlled by a damper c<1>. A conduit t<1> allows steam in the cooked-food container t to pass to the conduit g. The grate comprises widely-spaced firebars r attached to end bars which rest loosely on corner brackets s to allow the grate to be shaken. Specification 361,688 is referred to.
Patent GB-1531146-A (GB)
Title: Fluid pressure sensing apparatus
IPC: G01F1/46
Filed: 1976-09-21
Abstract: 1531146 Air-flow measurement CAMBRIDGE FILTER CORP 21 Sept 1976 39070/76 Heading G1R Flow measuring apparatus comprises, a duct and total and static pressure sensors 30, 32 connected to separate manifolds 10, 12, 16, 18 the probes being arranged at the centres of equal area segments in planes transverse to the duct areas. Static pressure is sensed by openings 34 in U-tubes 32. The arrangements are described in Specification 1531145. In a further embodiment for use in a circular duct, pairs of static and total pressure manifolds are arranged diametrically across the duct offset at 45 degrees.