baber/WOPTO huggingface dataset:
Patent GB-1035796-A (GB)
Title: Method for producing polybutadiene
IPC: C08F136/06
Filed: 1965-01-29
Abstract: A polymerization catalyst for the liquid phase polymerization of butadiene comprises mixing in the presence of a hydrocarbon solvent from 0.02 to 2.0 molar parts of a first component selected from nickel salts of carboxylic acids and organic complex salts of Ni, 0.2 to 10.0 molar parts of a second component consisting of boron fluoride and/or one or more complex compounds thereof, 1 molar part of a third component selected from organo-metallic compounds of alkali metals and metals of Groups II and III of the Periodic Table, and from 0.2 to 20 molar parts of a fourth component comprising an aliphatic hydrocarbon having two conjugated double bonds which is added before the first and third components react with each other, and thereafter ageing the resulting composition at a temperature of from 20 DEG  to 100 DEG  C. to yield a catalyst completely soluble in the solvent.  Component (1) may be nickel formate, acetate, octenate, naphthenate, stearate, benzoate, carbonyl, salcylaldehyde, acetylacetonate, acetoacetate or bis(alphafuryl dioxime) nickel, or bis(salicylaldehyde) ethylene diimine nickel.  Component (3) may be butyl Li, amyl Na, (C2H5)2Zn, (C2H5)2Cd, (C2H5)3Al, (C2H5)2AlF, or (C2H5)2AlCl. Component (4) may be butadiene, isoprene, or dimethyl butadiene. The polymerization of butadiene is effected by a conventional "low-pressure", process.  The polymer is substantially made up of units having a cis-1,4 configuration.
Patent GB-904401-A (GB)
Title: Substituted methylamides of o,o-dialkylthio- and o,o-dialkyldithiophosphorylacetic acids
IPC: C07F9/165
Filed: 1961-02-03
Abstract: The invention comprises compounds of formula <FORM:0904401/IV (b)/1> wherein R1 and R11 are C1-3 alkyl, X is oxygen or sulphur, and R1 is a straight or branched chain saturated or unsaturated C1-4 aliphatic hydrocarbon radical which may be halogenated or contain an alkoxy or alkylmercapto group.  The unsaturation in R1 may be olefinic or acetylenic.  The compounds may be prepared by reacting a compound <FORM:0904401/IV (b)/2> where Me is Na or K with a compound ClCH2CONHCH2OR1 at 15 to 50 DEG C. in the presence of an inert solvent.  The products in which X is sulphur may also be prepared by reacting <FORM:0904401/IV (b)/3> with R1OH at 20 to 100 DEG C. in the presence of an acid condensing agent in an inert diluent.  The products are pesticides (see Group VI).ALSO:Pesticidal compositions comprise a phosphorus-containing compound of formula <FORM:0904401/VI/1> wherein R1 and R11 are C1-3 alkyl, X is oxygen or sulphur, and R1 is a straight or branched chain saturated or unsaturated C1-4 aliphatic hydrocarbon radical which may be halogenated or contain an alkoxy or alkylmercapto group; the unsaturation may be olefinic or acetylenic.  (For preparation see Group IV (b)).  Other pesticidal substances and/or fertilizers may be present, D.D.T. being specified in an example.
Patent GB-815776-A (GB)
Title: Improvements in and relating to a sealing ring for a pipe joint and the joint incorporating this ring
IPC: F16L17/035
Filed: 1958-02-10
Abstract: 815,776. Pipe joints. COMPAGNIE DE PONT-A-MOUSSON. Feb. 10, 1958 [Feb. 21, 1957], No. 4230/58. Class 99(1). [Also in Group XXVI] A pipe joint is sealed by an elastic sealing ring R 1 , Fig. 2, (Group XXVI) which is mounted within the socket 8 of the joint in a recess which conforms to the outer contour of the ring. As shown in Fig. 2, the socket 8 is provided with a conical surface 11a which mates with a corresponding surface on the ring R 1  so that when the latter is compressed the conical surface thereby centralizes the pipe in the socket. The joint shown in Fig. 8, is for connecting large-diameter concrete pipes and in this case the ring R 5  is mounted on the end of the pipe T 5  before its insertion into the tapered bore 38 of the socket 37. The ring Rs is disposed in a groove 33 of the pipe T 5  which is provided with an adjacent reinforced layer 34. Penetration of the pipe is limited by a harder body-portion of the ring resisting compression.
Patent GB-1151058-A (GB)
Title: A device for Pumping Electrically Heated Liquid.
Inventor: HOWDEN HARRY
IPC: F04B17/00
Filed: 1968-01-26
Abstract: 1,151,058. Reciprocating pumps. MULLARD Ltd. Jan. 26, 1968, No. 4230/68. Heading F1A. A pump which operates by heating and cooling the liquid to be pumped comprises a container A having an inlet valve C and outlet valve E and a bellows member H filled with a volatile liquid, secured to one end. The member H is surrounded by a heating element controlled by a switch K, which may be cyclically controlled by external means or as shown by a projection L on the member H. A thermostat may be provided to prevent overheating together with suitable indicator lamps. The pump is stated to be useful for supplying heated liquid to a blanket or garment, in a closed circuit. An expansion chamber O is incorporated in the pump.
Patent GB-873711-A (GB)
Title: Improved reciprocatory compressor
Inventor: LEFAURE LEOPOLD
IPC: H02K33/06
Filed: 1959-02-06
Abstract: 873,711. Reciprocating motors. GENERAL MOTORS, FRANCE. Jan. 6, 1960 [Feb. 6, 1959], No. 4236/59. Class 35. [Also in Group XXVIII] A reciprocating motor combined with a gas compressor (see Group XXVIII), e.g. for a refrigerator, comprises a permanent magnet armature 33 attached to a piston 30 and movable between the poles 17, 18 of A.C. electromagnets 20, 21, and constrained by opposed spiral springs 37. The assembly is tuned to the supply frequency at full load. The magnet is contained within a frame 34 which has flanges 35, 36 to form abutments for the springs whose other ends bear against a solid cross member 16 of a stationary frame 11. The stationary frame is completed by a laminated portion 15 which carries a pair of U-shaped cores for the electromagnets, and the whole is carried within a case 10 on resilient mounts comprising rubber bushes 14 supported on conical springs 13 and having oversize holes to permit limited lateral movement. In a modification, of which Fig. 8 is an end view, the laminated part 15 is replaced by a solid member 40 into which are secured two sets of laminations 41 (and 42 behind), having centre pole pieces, and the resilient mounts have lower springs only.
Patent GB-189383-A (GB)
Title: Grain separators
IPC: B07B13/02
Filed: 1922-02-14
Abstract: 189,383. Carter, C. W. Feb. 14, 1922. Separating by rotary pitted cylinders and other moving bodies with like surfaces.-A separator of the type described in Specification 159,109, for separating mixed grains or other materials having different lengths but approximately the same diameters, consists of a container 8 for the materials to be separated, and a horizontal shaft 19 formed with a series of obliquely-set flat spokes 24 which propel the material progressively from the receiving to the delivery end of the casing. The outer ends of the spokes carry annular discs 23 having undercut pockets 23<a> adapted to receive the shorter material which is carried up in the pockets and drops from the upper part of the discs into flanged collecting spouts 31, whence it is delivered over downturned sections 32 into a delivery spout 16. If some of the longer material is being carried over, a number of the sections 32 at the delivery end of the machine where the longer material predominates may be turned back, so that the pockets 23<a> deliver to a tailing spout 26 provided with a screw 27 which returns the material to the receiving end for fresh separation. The mixture is fed to the container by a hopper 10 with independently movable gates 11, and the longer material is discharged at the opposite end by a spout 13 fitted with a gate 14. The tailing screw 27 is chain-driven from the shaft 19 through sprockets 28, 21 on the tailing shaft and the shaft 19 respectively. In a modification sets of discs with pockets of graded sizes are used for separating a mixture of materials of several different lengths, for instance large seeds, broken wheat, good wheat and oats.
Patent GB-1060671-A (GB)
Title: Apparatus for capacitive measurement of the fullness of a container
IPC: G01F23/26
Filed: 1964-02-03
Abstract: 1,060,671. Determining liquid levels electrically. ENDRESS & HAUSER G. m. b. H. A. ENDRESS-VOGT, L. HAUSER, [trading as ENDRESS & HAUSEN G. m. b. H. & CO.] Feb. 3, 1964 [Feb. 2, 1963], No. 4554/64. Heading G1N. The fullness of a container is measured by a capacitive probe which incorporates a capacitor C12 (Fig. 1) to measure fullness and a dielectric constant compensating capacitor C13, the capacitors being connected in a bridge circuit unbalance of which is corrected by adjustment of resistor R11 and the position of the slider on R11 is an indication of fullness. The measuring capacitors are so balanced with C11 and C14 that with an empty container the deflection of the slider is zero. The unbalance voltage across the bridge is applied to a differential amplifier D10 the output of which is amplified at A10 and drives a motor M10 which moves the slider until the voltages V11, V13 are equal. Alternatively Fig. 2 (not shown) the differential amplifier may be connected directly across the bridge diagonal and will operate the motor to adjust one resistor the slider of which is earthed until the voltage drops, across each of the two resistors, are equal and the bridge is balanced. PROBE CONSTRUCTION. As shown Fig. 3, C12 is formed by concentric tubes 36, 37 and C13 by circular plates 43, 44, 45, held together by insulating distance pieces 47 and screws 46, the screws 46 electrically connecting plates 43, 45. The tubes 36, 37 are attached to a cover 53 of the container by an insulating member 33 a conductive distance piece 52 and a conductive holding ring 31. The electrical connection to the inner tube is through screw head 34 and a lead 40 is connected to the plate 44. The outer tube is connected through 31 and 52 to the centre tap of transformer T.
Patent GB-190989-A (GB)
Title: Improvements in friction clutches
IPC: F16D13/28
Filed: 1922-02-16
Abstract: 190,989. Schneider et Cie. Dec. 28, 1921, [Convention date]. Clutches, friction.-In clutches having three friction-elements, one is rigidly secured to the driving-shaft, another is slidable thereon, and the intermediate element comprises two parts, one slidable on the other, which is secured to the driven shaft. The fixed member bears indirectly on the driven shaft. As shown, the intermediate member is a double cone D slidable by bolts d on a disc D<1> secured to the driven shaft E. One driving-member B is rigidly secured to the driving- shaft A and to a sleeve B<1> bearing on the shaft E, and the other driving-member C is slidably mounted in the element B by spring-pressed studs b<1> and is actuated by studs c having adjustable engagement with levers F operable by a collar G. The bolts d are lubricated from a trough b' through pipes b<2>, a trough d', and passages d<2>.
Patent GB-1028574-A (GB)
Title: Improvements in or relating to photoelectric organs
IPC: G10H3/06
Filed: 1963-02-05
Abstract: 1,028,574. Electrophonic organs. COMPAGNIE GENERALE DE TRAVAUX D'ECLAIRAGE ET DE FORCE ANCIENS ESTABLISSEMENTS CLEMANCON. Feb. 5, 1963 [Feb. 5, 19621, No. 4657/63. Heading G5J. In an electrophonic organ, the output of a photo-electric cell 7 driven by a lamp 6 and a record disc 1 is shunted to ground by another photo-electric cell 20 which has a low impedance when illuminated by light from a lamp 21. The output of photo-electric cell 7 is fed to a common output lead 11 when the illumination is cut off by a mask 22 carried by a key of the instrument. The output lead 11 common to a number of keys is connected to different channels 12, 12a, 12b &c. each arranged to provide a different timbre or stop. In each channel, an amplifier 13 is followed by a shaper 14 and an amplifier 15 of variable gain. The channels are all connected to a mixer which feeds a volume control 17, a power amplifier 18 and a loudspeaker 19. Each channel is switched by a device 27 comprising a triode 26, Fig. 6 (not shown), and a photo resistance 25. The triode conducts when light is shut off from 25 to make it resistive. A single key may carry a mask controlling photo-electric cells 20 associated with a number of generator cells 7.
Patent GB-1100452-A (GB)
Title: Internal diameter cutting wheel assembly and process for manufacturing same
IPC: B23D61/10
Filed: 1965-02-03
Abstract: 1,100,452. Grinding. I.N.M. INDUSTRIES CORPORATION. 3 Feb., 1965 [4 Feb., 1964], No. 4659/65. Heading B3D. An internal diameter cutting wheel comprises a thin metallic annulus 10 which has a cutting edge 12 at its internal peripheral region 12 and is held under radial tension by a ring structure 14 at its outer periphery. The annulus may be of bronze, copper, steel or the like and the cutting edge consists of a diamond matrix. The holding ring structure is of inexpensive material, such as polyvinyl chloride, styrene polymer, epoxy resin or the like, or the cast or otherwise cast or moulded metal. The structure may comprise two rings 15, 16, Fig. 2, secured together and to the annulus by screws 19, one of the rings being threaded so that a third ring 17 engaged therewith can be adjusted so as to apply radial tension to the annulus. In another embodiment, the annulus is embedded in a single ring 24, Fig. 3, and a ring 26 is secured by adhesive 27 in a position applying tension to the annulus. The tensioning ring may be secured to the moulded or cast ring by pins, bayonet catch or interengaging ribs and grooves. The cutting edge may be provided on the annulus before being mounted in the holding structure or a central hole may be initially rough punched in the annulus and then finish punched after mounting in the structure. In another arrangement, the annulus is made oversize so that its outer periphery can be gripped to permit the annulus to be tensioned while the holding structure is moulded or east on the annulus, the excess material of the annulus then being cut off. The ring structure is provided with means for securing the cutting wheel to a rotary drive member of a cutting machine.
Patent GB-694422-A (GB)
Title: Improvements relating to fuel systems of gas-turbine engines
Inventor: JUBB ALBERT
IPC: F02K1/16
Filed: 1949-02-21
Abstract: 694,422. Automatic temperature control. ROLLS-ROYCE, Ltd. Feb. 13, 1950 [Feb. 21, 1949], No. 4740/49. Class 38 (iv). [Also in Groups XI, XII, XXVI and XXIX] Fig. 6 shows a fuel supply system for auxiliary combustion equipment for augmenting thrust by burning fuel in the jet pipe 14 of a gasturbine engine, associated with meansfor increasing the effective area of the jet nozzle when fuel is so burnt. A thermocouple 36 controls the retraction of the segments 15a, and the supply of fuel to main injectors 40 is made dependent upon the sensing of a fall in temperature in the jet pipe 14 caused by the opening of the nozzle 15. A resistance thermometer 61, located in the jet pipe 14 upstream of the main injectors 40, is connected to form one arm of a bridge circuit 62. The latter is balanced and thus has no output when the temperature of the exhaust gases sensed by the resistance thermometer 61 has a selected value. On a change in temperature of the resistance thermometer 61, the bridge 62 becomes unbalanced and the resulting output passes to a pair of relays 64, 64, 65 so arranged that on a fall of temperature in the jet pipe 14 the relay 64 is energized, and on a rise the relay 65 is energized. The relay 64 completes a circuit 66a to drive a reversible electric motor 60 in a direction to open a throttle 135 in the pipe 26 supplying fuel to the main injectors. When the relay 65 is energized a circuit 66b is completed to rotate the motor 60 in a direction for closing the throttle 135. A preselected temperature may thus be maintained in the jet pipe upstream of the main injectors 40. Specification 641,910 is referred to.
Patent GB-1454024-A (GB)
Title: Apparatus for the passage fo grain
IPC: B01F5/20
Filed: 1974-02-01
Abstract: 1454024 Mixing apparatus JEDNOTNE ZEMEDELSKE DRUZSTVO PODREVNICKO SE SIDLEM V ZELECHOVICICH N DR 1 Feb 1974 04815/74 Heading B1C [Also in Divisions A2 and B8] Apparatus for treating grain with propionic acid comprises a hopper 1 and a cylindrical vessel 2 having a distributor cone 5, and a conical valve member 8 cooperating with a seat 6 and suspended from one end of a beam 9 fulcrumed at 10. The other end of the beam 9 is connected to a solenoid 14. A spray nozzle 18 sprays the curtain of grain falling through the valve. The vessel 2 is supported on springs 15 whereby the presence of a predetermined weight of grain in the vessel actuates a switch which causes the solenoid 14 to open the valve 8, and also starts a pump for the propionic acid and a screw conveyor 17. The solenoid 14 is actuated to close the valve by failure of the grain supply causing actuation of a float switch. The valve opening is adjustable by a lever 13 in conjunction with a guide and seal.
Patent GB-452117-A (GB)
Title: New or improved apparatus for testing high tension electrical systems
IPC: F02P17/00
Filed: 1935-02-14
Abstract: 452,117. Testing ignition. MANSELL, D. T., 36, Claverton Street, Westminster. Feb. 14, 1935, Nos. 4838 and 23383. [Class 7 (iv)] Apparatus for testing high tension spark ignition systems of internal - combustion engines comprises a gas-filled tube having one end connected to earth and the other to the sparking-plug and at the same time to another point in the ignition system, a make-and-break contact being provided for disconnecting the sparking-plug to enable the supply to be tested independently. Apparatus for a four-cylinder engine comprises a set of four identical units, each having a neon tube 1 with metal coatings 2, 2x at opposite ends held between a contact arm 6 and an earthed spring 3. The arm 6 is connected to the upper end of a highfrequency choke 7 consisting of a central rod of high-resistance high-frequency choking composition embedded in an insulating body. The lower end of the choke 7 is connected to a spring contact 9 engaging a pin 10 in an insulated spindle 11 which can be rotated by a lever 12 for disconnecting the testing apparatus. The spindle 11 is embraced by a member 13 rigidly mounted on a pin 14 and having an extension which engages an annular flange 16 on a plunger 17. This is upwardly pressed by a spring 18 and has an insulated knob 19 by which it can be depressed to break connection between the parts 13, 16, thereby disconnecting the sparking- plug 33. The plunger 17 is connected to a pin 21 which extends towards an upstanding point 22 on the member 13 so as to provide a spark gap. The tube 1 is screened on three sides by a metal screen 23 carrying one point 24 of a spark gap, the other point 25 of which is connected to the lower end of the choke 7. This gap is larger than the gap 21, 22 and can be jumped by the high-tension supply in the event of a complete breakdown of the sparking- plug end of the system. The pin 20, connected to the plunger 17, is connected to a sparking- plug 33, the pin 14 being connected to the corresponding terminal of the distributer 32. Four such testing units, one for each sparking- plug, are mounted parallel to one another in a casing, or alternatively a single testing device may be adapted to be connected to any one of the ignition systems by means of a multi-way switch.
Patent GB-881603-A (GB)
Title: Attachment for typewriter ribbon
IPC: B41J31/10
Filed: 1960-02-11
Abstract: 881,603. Ink-ribbon attachments. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb.11, 1960 [Feb. 26, 1959], No. 4856/60. Class 100(4) An attachment 1 for the end of an ink ribbon to aid its threading through guides and to provide means for its attachment to the spools comprises a clamping portion 3 which in co-operation with a shank part 4 secures the attachment to a ribbon 2 and a handle portion 5 formed with flanges 10 to engage the flanges of the supply roll and to frictionally secure the ribbon thereto. At the take up spool 19 the clamping portion 3 engages a socket 24 to secure the ribbon thereto.
Patent GB-525154-A (GB)
Title: Improvements in and relating to dynamic sound-converting apparatus
IPC: H04R7/12
Filed: 1939-02-15
Abstract: 525,154. Loud-speakers ; microphones. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 15, 1939, No. 4998. Convention date, Feb. 16, 1938. [Class 40 (iv)] In a moving-coil loud-speaker or microphone, the diaphragm has a domed central portion 6, an annular rim clamped at its periphery, and an intermediate part 5 curved in the opposite direction to the dome, the diameter of the coil 4 being smaller than that of the domed portion and equal to the radius of the free portion of the diaphragm. The radius of curvature of the recessed part 5 is preferably one-tenth that of the dome.
Patent GB-195049-A (GB)
Title: Improvements in and relating to electric generating apparatus
IPC: H02M7/06
Filed: 1923-02-21
Abstract: 195,049. British Thomson - Houston Co., Ltd., (Assignees of Hobart, H. M.). March 17, 1922, [Convention date]. Producing high-potential currents.-In a system for producing high-voltage direct current from a star-connected source of polyphase current by means of a plurality of vapour rectifiers, the source of current is constituted by the stator windings of one or more high-frequency generators driven directly by a high-speed motor, and the discharges in the various rectifiers are arranged to be out of synchronism with each other, so that the voltage pulsations from the rectifiers overlap in the direct-current circuit. In one arrangement, Fig. 1, a steam turbine 1 is directly connected to the rotating field 2 of a polyphase alternator, the field being excited by direct current from a source 3. The stator is provided with two starconnected polyphase windings 4, 5, the phases of which are displaced with respect to each other. Each phase of each of the, windings is connected to the corresponding anode 7 of vapour rectifiers 8, 9. The direct-current transmission lines 11 are connected to one of the cathodes 10 and to one of the neutral points 6, the two systems being connected in series or in parallel by means of switches 13, 1.6. The displacement of the phases in the two systems produces an overlapping and consequent reduction in the pulsations of the direct-current voltage, and the pulsations may be further reduced by including a small reactance 17 in one of the lines 11. The application of the invention to a high-voltage Thury transmission system is shown in Fig. 2. In this arrangement, turbines 18 - - 21 are directly connected to polyphase generators 22 - - 25. The middle generators 23, 24 are directly connected to the anodes of rectifiers 27, 28, a point 36 between these generators being earthed. The outer generators 22, 25 are connected to the corresponding rectifiers 26, 29 through a step-up phase-multiplying transformers 30, 31, the direct current lines 11 being connected to the cathode of the rectifier 26 and to the neutral point of the transformer 31. Overlapping of the pulsations in the lines 11 may be produced by providing each rectifier with a different number of phases, as shown, or by providing the same number of phases and maintaining different frequencies on the generators. For very high voltages a number of rectifiers connected in series are provided for each generator.
Patent GB-1515802-A (GB)
Title: Non-woven bias fabrics
IPC: D04H3/12
Filed: 1977-02-09
Abstract: 1515802 Non-woven bias fabric P C RHODES 9 Feb 1977 [11 Feb 1976] 05270/76 Heading D1R In a non - woven bias fabric in which the fabric is formed of inclined layers of parallel yarns extending between the edges of the fabric the lateral separation between the centres of at least the majority of adjacent yarns in each layer is 1 to 2 times the yarn diameter. A sheet of yarns is laid between parallel rows of travelling pins 1 by guide bars 3 that are reciprocated perpendicular to the rows of pins, their reciprocating movement being halted when they are disposed above a row of pins to allow solenoid 11 to lower the guide bars to engage the yarns with pins 1 and solenoid 12 to then lift the guide bars. The bias fabric is bonded by latex applied by rollers (33, 34, Fig. 6, not shown).