baber/WOPTO huggingface dataset:
Patent GB-1099857-A (GB)
Title: Connection of a drive pin to an armature of a transducer
IPC: H04R11/00
Filed: 1965-06-21
Abstract: 1,099,857. Welding by pressure. INDUSTRIAL RESEARCH PRODUCTS Inc. June 21, 1965 [Aug. 20, 1964], No. 26077/65. Heading B3R. [Also in Division H4] In a method of mounting a drive pin 52 on the vibratable portion of an armature 24 of a transducer motor, the armature 24 is assembled with other components of the motor, a rod is held such that one end may engage the armature 24 and the rod and armature 24 are connected together by a welding operation. Preferably the rod and armature 24 are connected to opposite poles of a welding circuit and the end of the rod is made to approach the vibratable portion of the armature 24 to cause an arc which welds the two together. The pin 52 is of stainless steel wire equally flexible in all directions and is fed, as rod, from a reel (64), Fig. 7 (not shown), to a pair of horizontally reciprocable cutters (68, 70) which form a feather edge on each side of the cut wire. The wire (62) is positioned by a chuck (66) connected to the welding circuit. In manufacture, the chuck (66) is moved downwardly to fuse the lower end of the wire (62) to the armature 24, a capacitor in the welding circuit discharging a few microseconds before the lower end of the wire engages the armature 24. A continuous process for attaching drive pins to armatures is envisaged. An aperture 51 in the casing 36 permits engagment of a clamp (72), Fig. 8 (not shown), to the armature 24 to permit electrical connection to the welding circuit (76).
Patent GB-950246-A (GB)
Title: Improvements in or relating to the refractory brick linings of catalytic reactors
IPC: B01J19/02
Filed: 1962-07-06
Abstract: 950,246. Refractory linings. METALLGESELLSCHAFT A.G. July 6, 1962 [Aug. 9 1961], No. 26086/62. Heading F4B. A refractory, domed brick lining in a reactor for the catalytic cracking of hydrocarbons comprises an annulus of arch bricks 1 arranged about an opening in the reactor casing 7 and having a downwardly convergent opening the minimum diameter of which is less than the opening in the casing, supporting an inner annulus of bricks 4 on the conical seating 3. Asbestos cord is fitted in a groove 6 at the upper ends of the bricks 4 for sealing and these bricks, of highly refractory material such as zirconium, cristobalite, sillimanite, magnesite or corundum, form a downwardly divergent passage 5.
Patent GB-631063-A (GB)
Title: Improvements in pulling and stretching devices for ropes or similar members
IPC: F16G11/12
Filed: 1947-09-26
Abstract: 631,063. Strainers. INGENJORSFIRMAN LJUNG & LINDQVIST. Sept. 26, 1947, No. 26183. Convention date, Sept. 30, 1946. [Class 45] In a device for tensioning ropes or the like comprising two sets of grippers a, b, relatively displaceable in a longitudinal direction and adapted alternately to grip the rope, each set is controlled by a device c, d, which frictionally engages the rope and operates in such a manner that movement of the rope in one direction causes the set of grippers to open and in the other direction to close. An arm 1, Fig. 1, has an anchoring loop 2 at one end and a set of grippers b at the other end and pivotally mounts a lever 4 which through a pivotal arm 6 carries a set of grippers a. The two sets of grippers are identical and each comprises two links 9, 10, Fig.2, which are pivoted on the supporting arm 1 or 6 and which carry a pair of serrated jaws 12, 13, anticlockwise rotation of the links 9, 10 causing the jaws to close: The pins 11, 11<SP>1</SP> on which the jaws are supported are keyed to the links 9, 10 and carry fingers 11 on a square end. These are arranged so that they do not interfere with the insertion of a rope in the jaws, but retain it in place when the jaws are closed. The pins 11, 11<SP>1</SP> also carry arms 16, 22 which form part of the control device c, d. Arm 16 has an integral casing 17 within which is a rod 27, Fig 3, slidable in a guide 26 and a sleeve 25 slidable in a guide 24. Between the sleeve and a projection 28 on the rod 27, a spring 29 is trapped, and the sleeve also has an abutment 30 which can engage a projection 31 on the casing 17. This end of the rod 27 carries two projections 33, 34, which embrace the end of the arm 22 carried by the pins 11<SP>1</SP>. The member 33 and the sleeve 25 are arranged frictionally to engage the rope so that, when the set of grippers is moved in one direction, the control device moves with the rope and so causes the jaws 12, 13 to close by pivotal movement of the links 9, 10. When the set of grippers moves in the other direction the friction of the members 25, 33 on the rope first opens the jaws 12, 13 and the rope then slides through the members 25, 33. The rope is inserted in the control device by manually opening the jaws 12, 13 to their maximum extent; the arm 22 then bears on projection 34 and the members 25, 33 are separated since the downward movements of the sleeve 25 under the action of spring 29 is limited by the abutment 30 engaging the projection 31.
Patent GB-902152-A (GB)
Title: Improvements in or relating to electrode supports for electron valves
Inventor: RANGABE ALEXANDER RIZO
IPC: H01J19/42
Filed: 1958-08-15
Abstract: 902,152. Discharge tubes. PLESSEY CO. Ltd. Aug. 10, 1959 [Aug. 15, 1958], No. 26261/58. Class 39 (1). An electrode support comprises a ceramic body 1, Fig. 2, encircled by a metal frame 2a having pips or lugs 5 projecting into the ceramic. The ceramic is sintered in situ within the frame, the consequent shrinkage causing the ceramic body firmly to grip the projections 5. In other respects the support may be similar to that described in Specification 817,091. As shown, the support is provided with resilient tongues 8 adapted to engage the metal envelope 13, Fig. 4, of the valve, insulating material being interposed between the tongues and the envelope, if desired. The support is mounted by means of rods 11 from the glass base 12 in metal collar 12a which is secured to the envelope 13 by soldering. In a modification, the metal frame 2a is formed with two circumferential lips which engage the upper and lower surfaces of the ceramic body.
Patent GB-1001921-A (GB)
Title: Process for polymerising saturated aldehydes
IPC: C08G2/00
Filed: 1964-06-25
Abstract: Saturated aldehydes are polymerized in the presence of a catalyst of formula (C6H10NO)nMe, where Me is an alkaline or alkalene-earth metal and n is its valency.  The catalysts are the reaction products of caprolactam with the hydroxide, hydride or alcoholate of the metal. The polymerization may take place by bulk, solution or suspension polymerization.  Specification 970,214 is referred to.ALSO:Alkali and alkaline-earth metal derivatives of caprolactam of formula (C6H10NO)nMe where Me is the metal and n its valency are prepared by reacting caprolactam with a derivative of the desired alkali or alkaline-earth metal, preferably the hydroxide, hydride or alcoholate of the metal, any water formed during the reaction being removed. The reaction may take place in the presence or absence of a liquid diluent, e.g. benzene.  In an example e-caprolactam is refluxed with benzene and a 30% aqueous solution of sodium hydroxide added dropwise over 30 minutes.  The mixture is refluxed until all the water is driven off, when the benzene is evaporated off under nitrogen. Specification 970,214 is referred to.
Patent GB-1500167-A (GB)
Title: Process for the preparation of vinyl acetate
IPC: B01J35/10
Filed: 1975-06-20
Abstract: 1500167 Catalyst for vinyl acetate production BAYER AG 20 June 1975 [27 June 1974] 26375/75 Heading B1E [Also in Division C2] A catalyst composition comprising a porous carrier and 0.3 to 3.0 percent by weight of palladium metal, 0.0157 to 1.8 percent of gold and 1 to 30 percent by weight of an alkali metal acetate, based on the weight of the carrier, distributed in such a way that at least 90 percent by weight of each of the palladium and gold are not more than 30 percent of the carrier particle radius from the surface, is used in the preparation of vinyl acetate by the reaction of ethylene, oxygen and acetic acid in the vapour phase. The profile of catalyst components may be determined for example by an X-ray microanalyser and the porous carrier used may be silica/alumina, or active carbon. The catalyst may be prepared by depositing a reduced metal compound e.g. 0.001 to 0.2 percent of platinum, palladium, iridium, rhodium, ruthenium, osmium, gold, silver, iron, cobalt, nickel, chromium, manganese, molybdenum, antimony, zinc, copper and tin, on the carrier and then impregnating with the required amounts of palladium, gold and alkali metal acetate. Examples describe the use of alumina, silica, and silica-alumina as the carrier, with palladium chloride and tetrachloroamine acid and sodium salt as the impregnants which are then reduced by hydrazine hydrate.
Patent GB-920919-A (GB)
Title: Frangible mold for use in cast welding
Inventor: GELFAND LEONARD
IPC: B23K23/00
Filed: 1961-07-20
Abstract: 920,919. Casting composite articles. ERICO PRODUCTS Inc. July 20, 1961, No. 26401/61. Class 83 (1). A mould for use in making cast welding connections with molten metal produced by an exothermic reaction comprises a frangible disposable cylindrical body 1 having a large aperture 2 at one end, a small aperture 5 at the other end, and an intermediate mould cavity 3, the aperture 5 receiving one member e.g. an earth rod 6, to be welded and the mould cavity having opening transversely into it a further aperture 7 to permit insertion of a member e.g. a conductor 10, to be welded to the member 10. A dished sheet metal disc 11 separates the crucible portion 2 from the mould cavity 3. The mould may be of fine clay, bonded calcined dolomite, resin-bonded sand &c. and may be supplied as a package in a polyethylene bag 15, complete with a packet 14 of desiccant, the sealing member 13 of the pipe cleaner type and a cartridge containing the exothermic material and ignition powder. After casting the mould is broken away from the joint. In a modification the crucible portion is separable from the mould portion and made of e.g. graphite so as to be reusable. Specification 835,787 is referred to.
Patent GB-956156-A (GB)
Title: An improved ultrasonic energy meter
IPC: G01H3/10
Filed: 1961-07-20
Abstract: 956,156. Ultrasonic intensity measurements. G. A. D. GORDON. July 20, 1962 [July 20, 1961], No. 26432/61. Heading H4D. The deflection of a water-immersed beam 1 resulting from the absorption of ultrasonic energy from source 8 by a disc 4 is utilized as a measure of the intensity of such energy, the beam being previously calibrated by placing known weights on a similar disc 4a or by the provision of a sliding weight on the right-hand side of the arm which is then suitably graduated. The deflection of the beam is observed by a telescopic sight 9 provided with an internal scale. To prevent the reading of the balance from being affected by convection currents caused by the ultrasonic energy the latter is directed on to disc 4 via a thin film 10 supported by a shelf 11 which is tilted with respect to the horizontal to allow air bubbles to escape to the surface. The variation in intensity of the ultrasonic beam over its whole area may be measured by means of a movable sheet of absorbent material placed over the film 11, the sheet being provided with a small aperture to allow energy from selected areas of the beam's cross-section to pass to the disc 4.
Patent GB-651622-A (GB)
Title: Improvements relating to sealing glands
IPC: B29C48/00
Filed: 1948-10-11
Abstract: 651,622. Stuffing-box substitutes. BRITISH INSULATED CALLENDER'S CABLES, Ltd., RICHARDSON, A. B. F. G., TUNNICLIFF, E. and FISHER, I. K. Oct. 11, 1948, No. 26479. [Class 122(v)] In a sealing gland, at the point of entry into a vessel containing pressure fluid of a relatively moving body, of the type in which the pressure of the fluid in the vessel is substantially balanced by that of a counter pressure liquid supplied to the interior of the gland, the counter pressure liquid is admitted to the clearance between the gland and the body passing through it, in the form of an annular stream inclined with respect to the direction of travel of the body so as to have a substantial component of movement in that direction. A gland at the inlet end of a vulcanising chamber 11 containing steam or other hot pressure fluid through which a rubber cable 10 passes comprises a holder 1, in two parts 1a and 1b, containing a pair of bushes 2, 3 shaped to form a pair of conical portions 5, 6 which converge towards a relatively short throat 4 lying partly in one bush and partly in the other portion. The contiguous ends 7, 8 of the bushes 2, 3 are coned and spaced to leave between them an annular port 9, inclined in the direction of movement of the cable, through which a stream of water is supplied via an annular chamber 18, longitudinal ports 17, and an annular groove 15 in the holder to the clearance between the throat 4 and the cable 10. The parts 1a 1b of the holder and the bush 5 and 6 are in halves and the bushes are axially located by collars 12 and 13. A third internally coned bush 31 having a throat 32 is fitted between the bush 5 and the inlet end of the gland and most of the surplus water escaping from the throat 4 flows through an annular port 34 formed by the space between the bushes 5 and 31 and is led away through a port 36 to a detachable chamber 37 on the external surface of the holder part 1a. The annular chamber 18 reduces the transfer of heat by conduction from the steam along the gland wall.
Patent GB-1365863-A (GB)
Title: Electronic weight transmitter
IPC: G08C19/02
Filed: 1973-06-04
Abstract: 1365863 Load cells K-TRON CORP 4 June 1973 [16 Aug 1972] 26543/73 Heading G1N A force transducer comprises a parallelogram structure whose sides are pivotally joined together; when a force is applied the parallelogram changes shape by motion about the pivot points and the change is converted into an electric signal by an electric displacement transducer such as a linear variable differential transformer. The pivotal motion is restrained by a torsion bar connecting one of the pivot points to a base-plate, the bar being replaceable by one of different characteristics to change to overall sensitivity. A cross-section of the force transducer is shown in Fig. 3. Three of the four parallelogram corners are seen at 36, 50 and 48, while the fourth corner is attached to the torsion bar. The bar is better seen at 72 in Fig. 1. The four sides of the parallelogram are constituted by an upright portion 32 of base 12, a member 30, and two members 26, 28 which extend beyond the parallelogram and carry a core 96 of LVDT 74. The member 30 is a yoke passing on both sides of members 26 and 28 for rigidity, and the force to be measured is applied to it via a cap 54 which may be screwed up or down to contact a load bearing surface such as a conveyer. A counterweight 118 allows any desired zero to be set to allow for tare weights, though this may also be achieved by screwing the LVDT core up or down. The LVDT body may be adjusted in position by screw 78, and the core mounting via springs 100, 102 is such that the core motion is linear. The LVDT connections are made via socket 118, Fig. 1, and connection is also made to a thermostatically controlled heater within the housing of the device (not shown).
Patent GB-844373-A (GB)
Title: Wave-guide coupling
Inventor: BARLOW HAROLD EVERARD MONTEAGL
IPC: H01P1/04
Filed: 1956-08-31
Abstract: 844,373. Waveguide joints. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 19, 1957 [Aug. 31, 1956], No. 26669/56. Class 40(8). A coupling device 1 with a flange 3 soldered to the end of a waveguide 5 received in a recess in such manner that the internal surfaces of the guide and device are continuous. The end surface 7 of the flange is slightly tapered towards the rim so that when two such sections are bolted together through holes 9, the two coupling devices are pressed together and make good line contact substantially in the region of their internal surfaces.
Patent GB-1438503-A (GB)
Title: Spark discharge plugs
IPC: H01T13/36
Filed: 1972-06-08
Abstract: 1438503 Sparking-plugs LUCAS INDUSTRIES Ltd 24 May 1973 [8 June 1972] 26692/72 Heading F1B A sparking-plug comprises an annular outer electrode 12, an inner electrode 18, an annular airgap intermediate the electrodes and an annular body of dielectric material 21 having a permittivity of at least 50 between one of the electrodes and the air-gap, the body of dielectric material having a high resistance to corrosion. The dielectric material may be calcium titanate. As shown the body of dielectric material 21 is spring actuated towards the sparking end of the plug. The plug described is for a gas turbine engine.
Patent GB-719756-A (GB)
Title: Improvements in or relating to solid polymer compositions
IPC: C08F2/36
Filed: 1952-10-24
Abstract: A composition comprises a polymer of styrene or its derivatives, e.g. a -methyl styrene, vinyl toluene, 2, 5-dichlorostyrene and the mixed isomers of dichlorostyrene, with benzene hexachloride as an extender. Various isomers of benzene hexachloride may be used in amounts from 1 per cent. to the compatible limit.  They may be incorporated by milling at 165 DEG  to 185 DEG  C., or by adding a solution in a neutral solvent, e.g. benzene, or by adding to the monomer, together with a catalyst, e.g. benzoyl peroxide, and polymerizing the mixture by heat. Films and moulded products have flame retardant and self-extinguishing properties.ALSO:An insecticide composition comprises a polymer of styrene or its derivatives, e.g. alpha-methyl styrene, vinyl toluene, 2, 5-dichlorostyrene, and the gamma isomer of benzene hexachloride. An amount from 1.1 to the compatible limit is incorporated by milling at high temperatures, by adding a solution in a mutual solvent, e.g. benzene, or by adding to the monomer, together with a catalyst, e.g. benzoyl peroxide, and polymerizing the mixture by heat.
Patent GB-1318771-A (GB)
Title: Apparatus for and method of cleaning an article and coating the article by sputtering
IPC: H01J37/36
Filed: 1970-06-03
Abstract: 1318771 Coating by sputtering WARNER LAMBERT CO 3 June 1970 [3 June 1969] 26734/70 Heading C7F An article is cleaned and sputter-coated whilst being kept free from atmospheric contamination by putting the article (e. g. a stack of razor blades 32) within a shroud (e. g. concentric cylindrical walls 80, 82) within an enclosed region,evacuating the region and introducing inert gas (e. g. Ar, Ne, or Kr), establishing an electrical potential (D.C. or R.F.) on the article and on the shroud means to surface-clean the article by removal of atoms and coating the article by sputtering from target 108, the vacuum being maintained throughout. As shown, stacks of blades 32 on bayonets 42 are rotated by a chain 54 Fig.2., (not shown) coacting with fixed sprocket 56 and sprockets 52 as motor 68, via pinion 36, rotates the assembly 28 on which the blades are mounted. Potential is applied to shroud 80, 82, which may have hollow walls containing heaters 120, 122, to clean the blades, and then door 98 in the shroud Fig.2, (not shown) is opened and the blades are coated by sputtering from target 108, e. g. of Cr, the blades being rotated so as to present opposite faces in sequence to the target. Alternative means for turning the blades round without continuous rotation are described with reference to Figs.7 and 8, (not shown). The target may be cleaned by reverse sputtering or the inside of the shroud may be covered with coating material and thus used as target .
Patent GB-1272438-A (GB)
Title: High-frequency induction-heating device
IPC: H05B6/02
Filed: 1969-05-27
Abstract: 1,272,438. H.F. induction heating coils. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 May, 1969 [27 May, 1968], No. 26766/69. Heading H5H. A device for high frequency induction heating in an enclosed space comprises a single-turn inductor 1 separated from the high frequency generator (not shown) by an insulating wall 10, the inductor having mutually insulated parallel arms 4 with bent-over ends 5, 6, provided with elongated elevations 8 acting as contact pieces for connecting to the connecting members 15, 16, of the generator by bolts 14 passing through bores 13 in the elevations, and each elevation 8 having a circulating channel 21 for cooling liquid. Coolant is supplied to channels 21 through hollow tubings 22 and flows through a tube 20 to cool the inductor 1 itself, the coolant passing through the wall 10 via nipples 23. Sealing rings 17 around bolts 14, seating rings 11  between ends 5, 6, and wall 11, and sealing rings 25 around the nipples 23, provide for the enclosure being airtight.
Patent GB-1508480-A (GB)
Title: Optical devices
IPC: G02B6/14
Filed: 1975-06-25
Abstract: 1508480 Light guides; controlling light WESTERN ELECTRIC CO Inc 25 June 1975 [1 July 1974] 26865/75 Headings G2F and G2J An optical device comprises a dielectric waveguide having a graded index of refraction and being capable of supporting a plurality of modes of propagation, and optical means, e.g. an optical fibre or a source of coherent light, optically coupled to that part only of the waveguide through which light of substantially only a selected one of the modes propagates. A fringing electric field may be produced by electrodes on the surface of the guide, to control the refractive index and hence the mode intensity.
Patent GB-1194361-A (GB)
Title: Power Generating Apparatus for an Electronic Ignition System.
Inventor: DAVALILLO JOSE LUIS ALMENDRO
IPC: H02K21/22
Filed: 1967-06-12
Abstract: 1,194,361. Ignition magnetos. FABRICA ESPANOLA MAGNETOS S.A. 12 June, 1967, No. 26937/67. Heading H2A. A permanent magnet generator for use in an engine ignition system in which a capacitor is charged from the generator through a diode and discharged by a triggering impulse also derived from the generator, has a different number of poles on its rotor and stator. As shown, the outer stator 1 has eight poles having pick-up coils 3-10. The internal rotor has only six permanent magnet poles supported in cast aluminium, there being two poles missing. This asymmetry provides the datum impulse which synchronizes the triggering of a controlled the ignition coil. A symmetrical connection of alternate coils 4, 6, 8, 10, provides a steady A.C. output suitable for lighting. As shown in Fig. 6, a voltage from a pair of alternate coils (marked 1 and 2) charges condenser 6 through diode 5. The intermediate coil (marked 3 in Fig. 6) acts through a filter 9, 10 to trigger the controlled diode to discharge the condenser into the coil 7. Various arrangements using external flywheel rotors are described.
Patent GB-991196-A (GB)
Title: Improvements relating to seats
IPC: A47C7/18
Filed: 1962-07-13
Abstract: 991,196. Seat cushions. DUNLOP RUBBER CO. Ltd. July 13, 1962 [July 17, 1961], No. 26944/62. Heading A4M. A seat cushion of resilient cellular material comprises a body portion 1 having a depression 2 in its upper surface in which is accommodated an insert 3 of different hardness to that of the body 1. The body 1 and/or insert 3 may be a polyurethane or polyether foam. The body 1 and insert 3 are bonded together other than at the front edge 4. An arched cavity 5 in the lower face of the body 1 is lined with the fabric 6 bonded thereto and accommodates arched seat springs 9 which may be sinuous, helical, metal-trellis or leaf springs.