baber/WOPTO huggingface dataset:
Patent GB-1480851-A (GB)
Title: Thioaminophosphazenes useful as inhibitors of premature vulcanisation in rubbers
IPC: C08G79/025
Filed: 1974-09-09
Abstract: 1480851 Thioaminophosphazenes IMPERIAL CHEMICAL INDUSTRIES Ltd 23 July 1975 [9 Sept 1974] 39264/74 Heading C2P [Also in Division C3] The invention comprises thioaminophosphazenes having at least one group of the formula wherein R is H, optionally substituted monovalent hydrocarbyl or optionally substituted divalent hydrocarbyl which may contain an interrupting hetero atom, R when divalent linking the N atom to which it is attached in Formula (I) to another N atom itself attached to a free valency of the P atom in the same or in a different group of Formula (I) and R<SP>2</SP> is optionally substituted hydrocarbyl. The thioaminophosphazenes may in particular have the formula wherein n is 1 to 100, especially 1, or 2 to 5, Y<SP>1</SP> and Y<SP>2</SP> are selected from Cl, Br, optionally substituted hydrocarbyl, optionally substituted hydrocarbyloxy and -N(R)(R<SP>1</SP>) where R<SP>1</SP> is H, optionally substituted hydrocarbyl, or -SR<SP>2</SP> and R and R<SP>2</SP> are as defined above, A is a monovalent substituent of the class defined for Y<SP>1</SP>, at least one of A, Y<SP>1</SP> and Y<SP>2</SP> being -N(R)-S-R<SP>2</SP>, B is H, R<SP>2</SP>, -SR<SP>2</SP>, -COR<SP>2</SP>, HCO-, or -SO 2 R<SP>2</SP> and if n is 3 or more A and B together may represent a direct link between -P=N units in a cyclic structure. Preferred thioaminophosphazenes are those of the formula wherein each of R<SP>3</SP> to R<SP>8</SP> is as defined above for the symbol A, especially and at least one is a group wherein R and R<SP>2</SP> are as defined above, and R and the radicals R<SP>3</SP> to R<SP>8</SP> are free from radicals linking two P atoms. The compounds may be obtained by reacting a thioaminophosphazene having at least one group of the formula with a sulphenyl halide: R<SP>2</SP>-S-Y where Y is Cl or Br, the reaction being normally effected in a reaction medium such as CCl 4 , toluene, cyclohexane or ethyl acetate, preferably at 30 to 80 C. A large number of thioaminophosphazene products are specified and examples are given for the production of P,P,P<SP>1</SP>,P<SP>1</SP>,P<SP>11</SP>,P<SP>11</SP>- hexakis[N - (cyclohexylthio)phenylamino]cyclotriphosphazene; P,P,P<SP>1</SP>,P<SP>1</SP>,P<SP>11</SP>,P<SP>11</SP>, - hexakis[N- (isopropylthio) phenylamino] - cyclotriphosphazene; and P,P - dianilino - P - [(N - isopropylthio)anilino] - N - p - toluenesulphonyl phosphazene. The products are useful as inhibitors of premature vulcanization in rubbers.
Patent GB-1463521-A (GB)
Title: Method and apparatus for reducing background in inelastic gamma ray logging systems
IPC: G01V5/10
Filed: 1974-09-09
Abstract: 1463521 Radio-activity well logging DRESSER INDUSTRIES Inc 9 Sept 1974 [26 Oct 1973] 39269/74 Heading G1A In a radio-activity well logging system using a pulsed neutron source and a radio-activity detector, the source is extinguished as soon as radiation is detected. This reduces the background radiation. Preferably the detected radiation is γ. As shown, neutron radiation from source 18 is initiated by a positive voltage from 20 and terminated by a negative voltage from 26, block 17 defines 10ÁS pulses beginning at To which switch on positive voltage source 20 and start the neutron beam. When the detector 10 produces an output pulse, this is amplified (11) and fed via threshold circuit (12) to AND gate 13 which is enabled by the clockpulse and bi-stable 30. This pulse triggers single shot 14 which opens linear gate 15 for a period during which the pulse from 11, after a delay at 16 is fed to output 19. The output of AND gate 13 also passes via OR gate 33 to negative voltage pulser 26 which turns source 18 off. The output from single shot 14 resets bi-stable 30 so that gate 30 will not pass another detector pulse during the clock period.
Patent GB-1516307-A (GB)
Title: Apparatus for conveying a device for inspecting or performing operations on the interior of a tube
IPC: G01N21/88
Filed: 1974-09-09
Abstract: 1516307 Apparatus for inspecting the interior of tubes BABCOCK & WILCOX Ltd 9 Sept 1975 [9 Sept 1974] 39317/74 Heading F2P Apparatus for conveying a device for inspecting or performing operations on the interior of a tube wall includes a connecting lead 1 for the device and a plurality of traction units 51, Fig. 4, secured at spaced locations along the lead, each unit including an electric motor (within housing 5) connected through a reduction gear train (gear-box 6, worm and wormwheel 30 and gear-wheels 33, 34, 39) to one or more drive means (wheels 20) and biasing means (cantilever spring 41) for urging the drive means into frictional driving contact with the internal tube wall and electric leads 2, 3 for supplying power to the traction units from an external source. Preferably there are three drive means spaced apart at 120 degrees to each other and caterpillar tracks may be used in place of wheels 20. The outer casing 7 preferably has skids 18 which are of U section to house the leads 1, 2 and 3 and formed either of low friction material or provided with bogey wheels or roller bearings. The portions of leads 1, 2, 3 between successive traction units are secured by P.T.F.E. sleeves or spheres 50 or mechanisms incorporating bearings so that the leads are kept clear of the tube wall. The traction units are electrically connected in parallel through tappings from the leads 2, 3 each tapping incorporating a resistor whose value is determined in relation to the distance of the traction unit from the power source. The front of each unit incorporates a switch 22 and in use the inspection or operation device is connected to the front of the apparatus and fed into the tube, the first traction unit is switched on and fed into the tube and subsequent units then switch on and fed into the tube as required. To remove the apparatus from the tube the current to the motors is reversed.
Patent GB-393314-A (GB)
Abstract: 393,314. Knitting-machines. HOLMES, H. H., ROBINSON, R. H., and WILDT & CO., Ltd., Adelaide Works, Leicester. Dec. 2, 1931, No. 33444. Addition to 364,039. [Class 74 (ii).] Relates to the wale-thread drawing device described in the parent Specification in which the thread-drawing device is automatically adiusted in conformity with adjustment of the length of loop of the ground fabric. As described in connection with a stationary needle cylinder machine, the thread-drawing or cam device 45 is adjusted angularly with respect to the stitch cam. An axially adjustable clutch sleeve 30 is provided in the drive for a cam disc 31 which carries the device 45, and has diametrically disposed projections 34 engaging wedge surfaces 27 on a driving member 25. Axial movement of the sleeve 30 by means of a forked member 39 results in angular displacement of the disc 31 and cam 45 with respect to the stitch cam. The forked member 39 is actuated by Bowden wire or other flexible means from a snail cam 11 which may be that employed for adjusting the length of loop of the ground fabric. Specification 357,619 is referred to.
Patent GB-1421799-A (GB)
Title: Method and apparatus for joining subsea pipelines
IPC: F16L1/26
Filed: 1973-08-21
Abstract: 1421799 Connecting underwater pipe-lines LOCKHEED PETROLEUM SERVICES Ltd 21 Aug 1973 [5 Sept 1972] 39606/73 Heading F2G In a method of connecting pipe-line segments underwater, each segment having a pipe 10 and a chamber 12, workmen descend to the submerged chamber 12 in a capsule, enter the chamber and release a buoy 72 attached by a drawstring 82 to a piston 88 in the pipe 10. A second, similar pipe-line segment is connected to the cable 82 at the surface and fluid pressure is used to drive the piston 88 along the pipe 10 to pull the second segment into the chamber 12 where a bridging connection 180 is made. The first pipe 10 may be connected to a shore installation. As shown, the location of the chamber 12 is indicated by release of a buoy 100. A system of fluid pressure lines 134 with valves 128, 132, 136 admits sea water to release the buoy 72 and later to drive the piston 88 back along the pipe 10. After the second pipe segment has been received in the chamber port assembly 60, equipment comprising a valve 70, pipe 71, cap 66 and the cable 82 are disconnected and a bridging section of pipe 180 is welded or bolted to the pipe ends. Piston 88 and cable 82 are later flushed along the pipe-line and the chamber remains on the seabed with a new buoy 100 in the hatch 30 for future location.
Patent GB-952970-A (GB)
Title: Improvements in or relating to the production of artificial arc filaments
Inventor: SCRAGG FREDERICK
IPC: D01D5/42
Filed: 1961-10-20
Abstract: 952,970. Producing artificial filaments otherwise than by spinning. ERNEST SCRAGG & SONS Ltd. Oct. 19, 1962 [Oct. 20, 1961], No. 39674/62. Divided out of 37642/61. Heading B5B. An artificial filament, especially an artificial filament consisting of a continuous main or trunk portion and short branch portions extending at intervals from the trunk and integral therewith, is produced by cutting a continuous narrow strip from a body of artificial fibreforming material, which may be in the form of a solid rod or bar, or in the form of a tube rigid or tubular film. As shown in Figs. 1 and 2, a tube 11 of the material having longitudinally extending fins 12 is slowly and continuously advanced along a cylindrical hollow rotating mandrel 13 so that the circular end of the tube comes into contact with a stationary knife 14, as a result of which a continuous strip or filament 15 having branches 16 is turned off the tube. A small pressure roller 14a is applied to the external surface of the tube 11 just ahead of the point of the knife 14 to flatten out the branches of the filament and hold them in position during the cutting of the tube. The mandrel is rotated by a drive unit 17 which also rotates through shafts and bevel gears three wheels 18 which protrude slightly through slots 19 in the mandrel 13. The portions of the wheels protruding through the slots engage the inner surface of the tube 11 and advance the tube along the mandrel. As shown in Fig. 3, the mandrel 13 is stationary and is mounted on a stationary axle 20. The wheels 18 are mounted on the axle 20 by rods 21 and are driven through bevel gears and shafts 22 by the internally toothed ring 24. A knife 23 is continuously rotated about the tubular film of filament-forming material 11 by the rotating ring 24 which is driven through a hollow shaft 25 by the drive unit 17. The continuous strip or filament 15 cut off the tube 11 by the knife 14 passes through a guide eye 26 to a take-up package 27 mounted on a spindle 28 which is rotatably mounted on an extension 29 of the ring 24. The spindle 28 has on its end remote from the take-up package 27 a bevel gear 30 which engages with a stationary bevel gear ring 31 fixed to the easing of the drive unit 17. Rotation of the ring 24 by the drive unit 17 therefore rotates the filament take-up package 27. In an alternative arrangement the mandrel 13 is rotated and the knife 23 is stationary, the reel carrying the tubular film 11 in flattened form being arranged to rotate with the mandrel. Specification 924,517 is referred to.
Patent GB-996320-A (GB)
Title: Improvements in or relating to chains
IPC: B65G17/06
Filed: 1963-10-09
Abstract: 996,320. Conveyer chains. P. CARVALLO. Oct. 9, 1963 [Oct. 19, 1962], No. 39860/63. Heading B8A. The bushes 5 and preferably also the pins 12 of a pin-and-bush chain project outside the link plates of the chain and are secured thereto by seam welding. The plates may be planar, as in Fig. 1, with the weld seam raised; or they may be stamped into a cupped shape adjacent the bush or pin and the weld seam used to fill in the cup and provide a generally flush finish as in Fig. 7. Figs. 3 and 4 (not shown) depict these two alternative forms applied to chain whose links each carry a pin at one end and a bush at the other, the link plates being suitably cranked. To restore a generally plane external face to such cranked link plates ribs 18, Fig. 5, may be attached. Conveyer applications.-Chains of the Fig. 1 form, in which certain of the pivot pins extend appreciably to one side of the chain, may be used to convey open-ended containers along a guideway. The guideway comprises parallel inwardly facing channels (Fig. 6, not shown) from which the extended pins project into the open ends of the containers, the link plates of the chain obturating the open ends and at least the end portions, which may be suitably reinforced, of the containers resting on the guide members. In Fig. 7, the link plates 25 on one side of the chain are wider than those 26 on the other and loads 28 can be carried directly on the wider link plates.
Patent GB-1069491-A (GB)
Title: Improvements in or relating to pulverising mills
IPC: B02C17/22
Filed: 1963-10-09
Abstract: 1,069,491. Pulverising mills. NORDBERG MANUFACTURING CO. Oct. 9, 1963 [Oct. 9, 1962], No. 39900/63. Heading B2A. A pulverising mill of the kind in which the charge is arcuately elevated in a rotary cylindrical chamber by means of upstanding bars provided on the cylindrical surface of the chamber in circumferentially-spaced relationship to the material is characterised in that the ratio of the interior diameter of the chamber to the interior axial length thereof does not exceed 3:1, in that the circumferential spacing to height ratio of the upstanding bars is between 3:1 and 4.5:1, and in that drive means are provided and arranged to rotate the chamber in the speed range from 72% to 80% of critical speed. Preferably, the diameter to axial length ratio is 2.7:1. The mill is suitable for performing the method of autogenous grinding described in Specification 1,069,492. The mill comprises a pair of grinding chambers (10, Fig. 1) each having a material inlet (12), a screen arrangement (18) located at the junction of the chambers (10) and a discharge hopper (16). Within each chamber are a number of radial lifter bars 40, Fig. 4, each comprising a base 42, Fig. 10, having inclined walls 42a, 42b and a cover member 44 which is secured in position by bolts which extend through the mill shell so that they may be tightened and loosened from outside the mill. Each chamber has a number of radiallyextending grates 50, Fig. 4, having openings 52 which are of a size to pass material which is oversize compared with the finished product. The material discharged through the openings 52 falls into annular spaces 54 and moves towards the bottom thereof. If the material has been pulverised to the desired size it will pass through screens 58. The material not screened will slide down the screens and fall into pockets 60. As the mill rotates, this material will be carried around the top of the mill and be discharged down through openings 66 and then be directed back into the interior of the pulverising chamber as it strikes axial walls 68. In a modification, the material passes through peripheral grates (70, Fig. 11) and then through peripheral screens (72) the material from which falls down into a hopper (74) while the material not screened collects in annular pockets 76 and is carried upwardly with the mill as it rotates. When the material reaches the top of the mill, it falls down through passages (78) and strikes conical plates (80) which direct it back into the grinding chamber (82).
Patent GB-832440-A (GB)
Title: Drive motor for apparatus for reproducing sound records from sound carriers
IPC: H02K5/167
Filed: 1957-12-24
Abstract: 832,440. Electric motors. FEINMECHANIKANSTALT. Dec. 24, 1957, No. 40020/57. Class 35. An induction motor, e.g. for sound reproducing equipment, has one disc and ball type thrust bearing and one plain bearing, the latter comprising a sleeve 10 in a bush 11 and extending inwardly in a recess 9 in the rotor 4, and outwardly to provide a means of fixing the motor, e.g. by a thread at 14. Both bearings may be self lubricating or may be of plastic. The squirrel-cage rotor 4 may be either of copper, with protruding copper bars to form fan blades, or of aluminium die cast about the shaft 6 and the laminated core 7, with integral fan blades 5. Cooling air for both windings and bearings is drawn through end openings 16 and expelled through peripheral openings 17. By suitably proportioning the area of these openings a small adjustment of speed is obtained. The casing 19 may be in two cup-shaped halves, joined by welding at 15.
Patent GB-850068-A (GB)
Title: Improvements in top surface burner for gas ranges
Inventor: WEBER VICTOR
IPC: F23D14/04
Filed: 1958-12-11
Abstract: 850,068. Gas burners. ROBERTSHAW-FULTON CONTROLS. Dec. 11, 1958 [Dec. 16, 1957], No. 40030/58. Classes 75(1) and 75(3). A gas burner comprises a chamber 66 having an inlet 46 for gas/air mixture and an annular outlet 68, a plurality of outlet ports 63 communicating with the annular outlet 68 and oppositely disposed projections 70, 72 positioned above and below the outlet ports 63 to define an annular ignition chamber. The outlet ports 63 are formed by slots in a rib 60 formed on a port ring 58 and resting on the base 54 of a cupshaped insulator ring 50 made of steel coated with aluminium and engaged in a recess 48 in the outer wall 24 of the chamber 66. The annular outlet 68 is defined by a downwardly directed cylindrical extension 64 of the port ring 58 and the inner edge of the insulator ring 50. The upper flange 70 is formed on the port ring 58 and the lower flange 72 is formed on the top of the outer wall 24 of the chamber 66. The rib 60 is also formed with a single hole 73, Fig. 4, above the ports 63. At low gas pressure the hole 73 maintains a steady flame at the adjacent ports 63 and gas accumulates in the remote part of the ignition chamber and is intermittently ignited by a flame travelling from the ports 63 adjacent hole 73. A thermal sensing element 80 responsive to the temperature of a vessel being heated by the burner is mounted in a central opening in the burner and controls a gas valve 76 set by a handle 78.
Patent GB-831317-A (GB)
Title: Apparatus for the regulation of hydraulic transmissions, more particularly for reel drives
Inventor: BICHLMEIER LUDWIG
IPC: F01B3/10
Filed: 1957-12-24
Abstract: 831,317. Hydraulic transmissions. RAUCH, C., [trading as RAUCH ULMER SCHRAUBENFABRIK, C.]. Dec. 24, 1957, No. 40143/57. Class 69 (2). In response to the pressure in the system, a regulator piston 5 alters the rate of delivery of pump 1 of a transmission in order to keep constant its output power. A change of pressure at face 6 shifts piston 5 and causes changes in gas volume and pressure in accumulator 9 approximately in accordance with the isothermal law pv=constant. The piston 5 alters the stroke of the pump 1 in such a way that the volume of gas in accumulator 9 is proportional to the rate of delivery of pump 1. Since the working pressure and pressure in the column 14 are proportional, the power remains unchanged. Means are described for altering the power value by altering the length of liquid column 14, and for lowering the maximum delivery rate of pump 1, by moving downwards piston 20.
Patent GB-1401951-A (GB)
Title: Method for removing harmful components from exhaust gases
IPC: B01D53/94
Filed: 1972-08-30
Abstract: 1401951 Treating exhaust gases KOBE STEEL Ltd 30 Aug 1972 [30 Aug 1971] 40184/72 Heading C1A Exhaust gases are passed in sequence through beds of oxidizing, reducing and oxidizing catalyst 1, 2, 3. Oxygen containing gas is added at 11 and 13. Hydrogen is oxidized in bed 1, nitrogen oxides reduced in bed 2 and carbon monoxide and hydrocarbons oxidized in bed 3. Each bed may contain copper chromite, platinum, palladium, copper-palladium and/or nickel. They are effective for oxidation of hydrogen in the temperature range 50-300 C. and for nitrogen oxide reduction above 300 C. The oxygen added at 11 is preferably more than that needed to oxidize the hydrogen present but less than half the total quantity of hydrogen and carbon monoxide. Beds 1 and 2 may be in the same chamber so that bed 2 is heated by the heat produced in bed 1. Reference has been directed by the Comptroller to Specification 1,314,504.
Patent GB-1392758-A (GB)
Title: Process for etching silicon nitride
IPC: H01L21/311
Filed: 1972-08-31
Abstract: 1392758 Etching WESTERN ELECTRIC CO Inc 31 Aug 1972 [3 Sept 1971] 40379/72 Heading B6J Silicon nitride is etched with a solution comprising orthophosphoric acid, 10-40% sulphuric acid, and sufficient water to make the boiling point 160-180‹ C. In planar silicon processing, the silicon nitride has windows which expose base silicon, which is not attached by the above etchant.
Patent GB-1031948-A (GB)
Title: Improvements in or relating to air moving apparatus having an engine driven blower
Inventor: MORRIS ALBERTO JORGE
IPC: F04D29/64
Filed: 1964-10-05
Abstract: 1,031,948. Axial-flow blowers; mounting engines. R. A. LISTER & CO. Ltd. Oct. 5, 1964, No. 40493/64. Headings F1B, F1C, and F1M. In an apparatus for moving air e.g. for ventilation and air drying of crops and other products, the impeller of an axial-flow blower is mounted directly on an I.C. engine crankshaft or a part secured thereto, to form a unit which is supported within a cylindrical-walled nacelle, the impeller being downstream of the engine and the tips of the impeller blades 11b being closed to the nacelle wall 12a. At each of the lower four corners of the engine a pair of tubular supports 20, 21 are pivotally connected via rubber bushes (not shown), to a lug 22 on the engine and brackets 23, 24 on the nacelle wall 12a. In order to receive the wall 12a of substantial mounting loads the brackets 23, 24 are bolted at 31 to externally-mounted brackets 30a 30b interconnected by an anglesection bearer 33 on a mounting pad 34. The pads 34 may be bolted to timber baulks for transportation of the unit to a location for use, a fixed bed or a mobile chassis. The nacelle is strengthened by plates 36 welded to the wall 12a and by axially-spaced hoops 12b. A tubular member 26 at each side of the engine extends axially and outwardly from a lug 27 on the engine to a bracket on the nacelle wall to transmit axial loads. Tie-bars 38, Fig. 2 (not shown), extending between the cylinder heads and the nacelle may be provided to oppose any tendency of the unit to oscillate rotationally. The blower, which may be of the type described in Specification 1031949 with a centrifugal clutch in the impeller drive, has straightening vanes 40 secured to a diaphragm 41 supporting a bearing 42. Because of the clearance 43 the bearing normally does not support the unit, but in event of failure prevents the blades 11b from contacting the nacelle wall. The engine air cleaner 15 and exhaust silencer 17 are mounted on the nacelle and are connected to the engine via a flexible hose 14 and a flexible pipe 18 respectively. Parts of the nacelle wall may be cut away to provide access to the engine and the resulting apertures closed by removable covers 13 attached to the hoops 12b.
Patent GB-1097546-A (GB)
Title: Injection device for injection moulding machines
IPC: B29C45/07
Filed: 1965-09-22
Abstract: 1,097,546. Injection moulding machines. ARBURG MASCHINENFABRIK HEHL & SOEHNE. Sept. 22, 1965 [Oct. 6, 1964], No. 40500/65. Heading B5A. An injection screw 24 is reciprocated by the piston 2 of a fixed hydraulic cylinder 1, the piston 2 being rigidly connected to pistons 16 (17) in cylinders 14, 15 fixed to an independently reciprocable injection cylinder (12). During the injection stroke the pistons 2, 16, (17) are all supplied with fluid under the same pressure. During the return stroke the exhaust from the chambers 26, (27) of cylinders 14, 15 may be throttled by a regulating valve 19. Change-over from injection to return is effected by means of a solenoid operated valve (8). The screw rotation is stopped during injection.