baber/WOPTO huggingface dataset:
Patent GB-973324-A (GB)
Title: Method and apparatus for determining the concentration by weight of a substance in a fluid stream
IPC: G01G7/02
Filed: 1962-11-15
Abstract: 973,324. Measuring electrically; weighing apparatus. TECHNICON INSTRUMENTS CORPORATION. Nov. 15, 1962 [Nov. 21, 1961], No. 43229/62. Headings G1N and G1W. Apparatus for determining the weight of a substance in a fluid stream comprises means for separating the substance from the stream, adding it to a liquid carrier and comparing the weight with an equal volume of the carrier alone. As shown (Fig. 1), a pump 12 consisting of a number of flexible tubes 20-40 compressed by rollers 44 moved continuously from right to left, feeds the test mixture, air and water through tubes 20, 22, 24 respectively to a T-junction 52 where the air is removed and the fluid mixed with a solvent for the test substance, pumped through tube 28, to form two immiscible liquids which are gravity separated at 14. The solvent is pumped off via tube 30, and the lighter liquid comprising the test substance in solution is fed through a coil 84 on one side of a weighing balance 16. A similar coil 84<SP>1</SP> on the other side of the balance 16 is fed with the solvent only, and the deflection of the weighing beam 76, measured by a differential transformer 86, is indicative of the concentration of the test substance in the original fluid stream. The apparatus may be used to determine the butter fat content of milk. Specifications 774,711, 817,070, 827,924, 827,925 and 929,079 are referred to.
Patent GB-941348-A (GB)
Title: Froth flotation process
IPC: B03D1/14
Filed: 1961-12-04
Abstract: 941,348. Froth flotation. HEYL & PATTERSON Inc. Dec. 4, 1961 [April 18, 1961], No. 43241/61. Heading B2H. A froth flotation process comprises the steps of progressively advancing slurry along on elongated receptacle 2, impelling into the slurry below its surface at intervals along its path e.g. through chambers 10, agitating liquid and gas causing agitation and froth formation, separating froth from the slurry, withdrawing a portion of the remaining slurry from the receptacle, at least part of the withdrawn slurry being re-impelled into the slurry and thus recirculated to constitute at least part of the agitating liquid, and delivering a tail's fraction at the end of the path. The receptacle is divided into four cells A, B, C, D by baffles 4, 5, 6. The slurry is fed in under a baffle 3 and it gradually progresses to a tails outlet 9 by way of baffles 7, 8. The chamber 10 in each cell is fed with slurry from a pump 17 tangentially through a conduit 11 so that the slurry swirls out of an outlet 12, mixes with air from a pipe 13 and distributes itself throughout the particular cell. Each cell has a pipe 18, 19, 20, or 21 with a control valve 18<SP>1</SP>, 19<SP>1</SP>, 20<SP>1</SP> or 21<SP>1</SP> respectively through which slurry maybe withdrawn to feed the pump 17. It has been found that the best results are obtained if the feed for the pump is taken from the cell C or the cell D, or from the outlet 9, which is in effect the same as taking it from the cell D. The baffles 4, 5, 6 may be dispensed with and in some cases the slurry withdrawn from the receptacle 2 may not form all the agitating liquid, or only part of the slurry withdrawn may be used for agitation.
Patent GB-1357259-A (GB)
Title: Disproportionation of alkylaromatic hydrocafbons
IPC: C07C6/12
Filed: 1972-09-20
Abstract: 1357259 Alkyl aromatic hydrocarbons TEXACO DEVELOPMENT CORP 20 Sept 1972 [11 Nov 1971] 43457/72 Heading C5E Methylated aromatic hydrocarbons are made by (a) catalytically disproportionating toluene feed in the presence of H 2  in reactor 4, (b)  fractionating in tower 8 to provide benzene, toluene, C 8  hydrocarbons, and C 9  and heavier hydrocarbon fractions (the latter containing ethylated aromatics) and recycling (via 12) the toluene fraction to (a), (c) catalytically disproportionating the C 8  fraction from (b) in reactor 20 in the presence of H 2  to form benzene, toluene, trimethyl benzenes, tetramethylbenzenes and ethylated aromatics, (d) fractionating in fractionator 26 the product from (c) into a C 6 -C 8  fraction, a C 9  fraction, and a C 10  and heavier fraction which latter is recovered, and recycling the C 6 -C 8  fraction via 30 to fractionator 8, (e) the C 9  fraction recovered from (d) being free from ethylated aromatics and preferably being fractionated to give xylenes, mesitylene, pseudo cumene and hemimellitene, which latter two can be recycled to step (c). The C 9  and heavier fractions of step (b) are withdrawn from fractionator (9) and de-ethylated in de-ethylator 70 to give benzene and methyl benzenes, together with the C 10  fraction from fractionator 26 which has been fractionated again in fractionator 52. The 188-195‹ C. boiling fraction from 52 is cooled to produce durene crystals. The disproportionation catalyst is preferably sulphided Group VIII metal on hydrogen mordenite and alumina.
Patent GB-908200-A (GB)
Title: Improvements in or relating to sound recording and playback apparatus
IPC: G11B27/24
Filed: 1958-09-10
Abstract: 908,200. Magnetic sheet recorders; associated working. TOKYO DENKI KAGUKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y. Sept. 10, 1958 [Sept. 12, 1957], No. 43488/60. Divided out of 889,401. Class 40 (2). Indexing means for the machine described in Specification 889,401 comprise a solenoidoperated pen 52, mounted to traverse the margin I of a record to produce marks P 1 , P 2 , and electrical contacting means 55 to sense means 54 provided in accordance with some or all of the ink markings. Visual marks 35, 35<SP>1</SP> may be provided to indicate the start and finish of the recording, while the means 54 may be used to halt the machine after each of a number of short recordings sharing one sheet or to control the operation of a photographic slide-changer in accordance with associated sound recordings. The means 54 may be foil strips or holes, through which the contact 55 can engage a conductive strip secured to the record pressure plate (Fig. 1, not shown).
Patent GB-1397769-A (GB)
Title: Moulded elements
IPC: C04B35/00
Filed: 1972-09-20
Abstract: 1397769 Moulded spinel elements EASTMAN KODAK CO 20 Sept 1972 [20 Sept 1971] 43591/72 Heading C1A A polycrystalline solid having the formula ACr 2 X 4  in which A is a divalent cation, or mixture of mono- and trivalent with net divalent charge, preferably from Mn, Cu, Fe, Hg, Co, Cd or mixtures thereof, and x is a one or more of S, Se or Te, is made by heating the solid in powder form, in a mould to 400-1200 C. at a pressure of 4000-75,000 p.s.i. until the solid has a density of at least 99% of the theoretical density given by its formula. Exemplified solids are CoCr 2 S 4 , CdCr 2 S 4  and CdCr 2 Se 4  and the starting powders may be made by the method of Specification 1,397,770.
Patent GB-1039197-A (GB)
Title: Improvements in automatic character recognition
Inventor: HAXBY RALPH DAVID
IPC: G06V30/162
Filed: 1961-08-24
Abstract: 1,039,197. Automatic character reading. SOLARTRON ELECTRIC GROUP Ltd. Aug. 24, 1962 [Aug. 28, 1961], No. 43630/64. Heading G4R. In a character recognition apparatus of the kind in which the character is scanned to obtain black and white signals, the character is scanned with a small aperture and a large aperture including the small one. Each aperture provides a light-density signal and that from the larger area is used to provide a dipping level to distinguish between black and white signals from the small area.
Patent GB-1526776-A (GB)
Title: Refrigerant compressor with insulated discharge tube
IPC: F04B39/12
Filed: 1975-10-23
Abstract: 1526776 Refrigerant compressors LENNOX INDUSTRIES Inc 23 Oct 1975 [27 Jan 1975] 43659/75 Heading F1N A refrigerant compressor has a discharge tube 44 at least the portion which passes through the lubricant sump 41 being enclosed by an imperforate tubular member 46 which heat insulates the tube from the lubricant. The compressor comprises a compression mechanism 18 resiliently mounted within a sealed outer housing 12, 14, the discharge tube 44 passing through the housing before passing to the exterior thereof. Thus the tubular member 46 also inhibits the transfer of heat to the suction gas within the housing 12, 14. The space 50 between the tube 44 and the member 46 is evacuated to 500 microbars. To improve flexibility and inhibit the transmission of noise the tubular member 46 and possibly also the discharge tube may be corrugated along at least part or parts thereof. Braided wire reinforcement may be disposed in the space 50.
Patent GB-1223068-A (GB)
Title: Electromagnetic relay
IPC: H01H50/56
Filed: 1969-09-04
Abstract: 1,223,068. Electromagnetic relays. INTERNATIONAL STANDARD ELECTRIC CORP. 4 Sept., 1969 [l Sept., 1968], No. 43786/69. Addition to 1,123,100. Heading H1N. A miniature relay for mounting on a printed circuit board as described and claimed in the parent Specification is modified so that its contact set or sets is or are aligned with the coil in such a way that the overall height of the relay is substantially the diameter of the coil and the contact springs extend parallel to and away from one end of the coil. As shown in Fig. 2 each changeover contact set is mounted with its insulating spacers 6, 7 in a coil former extension 15 with the fixed contact springs 10, 12 stressed against respective surfaces 17, 18 thereof. In the arrangement shown in Figs. 5 and 10 the operating cord 25 acts upon the movable contact springs of twelve bifurcated contact sets and is engaged by armature extensions 24.
Patent GB-1085881-A (GB)
Title: Aircraft
IPC: B64D17/52
Filed: 1964-10-27
Abstract: 1,085,881. Flexible wing aircraft. P. M LEMOIGNE. Oct. 27, 1964 [Oct. 29, 1963; March 6, 1964; Oct. 12, 1964], No. 43795/64. Headings B7G and B7W. An aircraft has a wing of sheet material including a fixed part, and a part that can be flapped, and openings in the wing allow air to pass from the lower concave surface to rearwardly directed nozzles in the upper convex surface. In the embodiment shown, an inflatable tube 4 forms a framework on which are mounted panels of flexible material such as fabric. Some of the panels such as 48 have forwardly and rearwardly directed openings, which can be selectively closed by rigging lines for steering, some, such as 16 or 54, have rearwardly directed openings only, and some, such as 2 have no openings. The aircraft may be propelled and manoeuvred by flapping panels 38, 38<SP>1</SP> articulated to the framework 4 and by flapping the leading edge of the wing through lines attached at 26, 28, 30, 26<SP>1</SP>, 28, 30<SP>1</SP>, either manually or by a motor which may also drive a propeller (Fig. 12, not shown). A body 6 is suspended from the wing by lines some of which are enclosed in rigid tubes 20 which support the wing when the aircraft is grounded. In another embodiment (Figs. 18 and 19, not shown), the wing is circular in plan form and control and propulsion is effected by deforming sections of framework which is either inflatable or formed of short lengths of tube through which a wire is passed. In other embodiments the wing is delta-shaped or rectangular and flapping panels are articulated to it. Instead of a body 6 a harness (Fig. 24, not shown) may be used to support the pilot, and the aircraft may descend vertically as a parachute.
Patent GB-1476216-A (GB)
Title: Strand winding machine
IPC: B65H67/04
Filed: 1974-10-10
Abstract: 1476216 Continuous winding apparatus KOBE STEEL Ltd and SUMITOMO ELECTRIC INDUSTRIES Ltd 10 Oct 1974 [13 Oct 1973] 43953/74 Heading D1J The invention relates to continuous strand winding apparatus in which as the strand is transferred from a full reel to an empty reel a snagger provided on the outer peripheral portion of a spindle mounting receiving the empty reel grips the strand. According to the invention the spindle mounting has an outer peripheral portion 13, Fig. 5, that is frusto-conical, Fig. 6, the snagger 7 being mounted on a shaft 14 that extends through this frusto-conical surface 13 in a direction parallel to the axis of the spindle. The snagger 7 has an end b that is to engage and grip the strand, and a centre of gravity g that is on the other side of the shaft 14 to the end b. Consequently when the spindle mounting rotates the snagger 7 will rock clock-wise in Fig. 5. due to centrifugal force, to cause the end b to move closer to the frusto-conical surface 13 and so grip the strand therebetween. Fig. 7 shows a similar embodiment except that when the reel 21 has been fully wound and is moved axially away from the conical surface carrying the rockable snaggers 15, spring means 18 forces the snagger 15 to move axially away from the conical surface to release the strand from therebetween. When a fresh reel 21 is moved into position it displaces a rod 22 to the right in Fig. 7 to overcome the effect of the spring 18. As the reel mounting 16 is brought up to speed the snagger 15 will rock about its shaft 18 to grip the strand as described with reference to Figs. 5 and 6.
Patent GB-1308876-A (GB)
Title: Bundle ties
IPC: B65D63/14
Filed: 1971-09-22
Abstract: 1308876 Band clamps AMP Inc 22 Sept 1971 [14 Oct 1970] 44075/71 Heading E2B A bundling tie for securing together in a bundle a plurality of cables or the like comprises a strap 12 having two uniformly spaced, parallel rows of apertures 18, opposed apertures in the rows being joined by transverse slits 15, the material between adjacent slits forming substantially parallel vanes 16 extending at an angle to the plane of the strap so that on overlapping portions of the strap the vanes on the overlapped portions interleave to fasten the portions together. Each aperture is part circular and a leading edge of each aperture engages a trailing edge of the overlapping aperture when the vanes are interleaved whereby when the tie is tensioned the tension is transmitted through the marginal portions of the strap and not through the Vanes. The tie may be made from plastics of metal. A keeper 26 is fitted in notches 28 in an enlargement of the strap. The keeper may have a transverse rib on one side and a transverse groove on the other side to facilitate stacking of the keepers also the rib engages between two adjacent cables or the like to maintain the keeper stationary relatively to the bundle. The keeper may have an inverted V form and the free ends engage between the cables. The keeper may be integral with the strap. Instead of a keeper the free end may be spot welded to the overlapped strap portion.
Patent GB-1160265-A (GB)
Title: Improvements in or relating to Filling Compositions
Inventor: MEASURES ROY VINCENT
IPC: C08F259/04
Filed: 1965-10-19
Abstract: 1,160,265. Polymerizable mixtures containing a vinyl resin and a metal. BOSTIK Ltd. 19 Oct., 1966 [19 Oct., 1965], No. 44187/65. Heading C3P. A mouldable composition comprises a vinyl resin dispersed in a medium consisting at least in part of an ethylenically unsaturated plasticizer, a powdered metal and a polymerization catalyst for said plasticizer. On heating to an elevated temperature the resin dissolves in the plasticizer which polymerizes. Additional resins, e.g. polyvinylidene chloride may be included in the composition. Specified ingredients of the composition are dispersion grade resins such as polyvinyl chloride, Al, Fe, Pb, tertiary butyl perbenzoate and benzoyl peroxide. Non-polymerizable plasticizers may also be added. In the example, a mixture of an ester plasticizer, polyvinyl chloride, a catalyst, Al powder, basic lead carbonate and calcium carbonate is used to over-fill dents in steel panels of a motor car body and the panels are held for 15 minutes in a zone heated to 180‹ C.
Patent GB-885328-A (GB)
Title: Apparatus for emptying and flushing vessels for pasty substances
IPC: B01F15/00
Filed: 1959-12-30
Abstract: 885,328. Conveying solids by currents of liquids. BECKER, H. Dec. 30, 1959 [Jan. 3, 1959], No. 44217/59. Class 78 (4). [Also in Group XIII] An apparatus for emptying and flushing a vessel 13 containing pasty substances, e.g. cellulose digesters and diffusers, comprises a vertically movable and rotatable flushing pipe 14 provided with nozzles 15 and a conical valve closure member 16 which, when the pipe is fully lowered seals the vessel outlet 12. The pipe has a perforated portion 28 located in a flushing fluid pressure chamber 22, is reciprocated by a double-acting piston 24 operating in a cylinder 23, and is rotated by a motordriven worm gear 35 engaging splines 35s on the piston-rod 29. In a modification (Fig. 7 not shown), the apparatus is located beneath a vessel 44 provided with an elbow outlet 41 in which is located the pressure chamber 40.
Patent GB-930890-A (GB)
Title: Improvements in or relating to pipe joints
Inventor: SANDERS RALPH M
IPC: F16L37/092
Filed: 1961-12-11
Abstract: 930,890. Pipe joints. AUTOMATIC SPRINKLER CORPORATION OF AMERICA. Dec 11, 1961, No. 44256/61. Class 99(1). A pipe end 19 with an external circumferential groove 21 is secured in a tubular coupling 10 having in its inner wall spaced annular channels 15, 17 each having a side wall 25, 28, the bottom of the channel 15 being tapered as shown toward its side wall 25 and a contractile split ring 11 being slidably received in the channel 15 and adapted to seat itself in the pipe groove 21. Axial forces tending to separate pipe and coupling move the pipe and ring thereon towards and to abut the side wall 25, the taper forcing the ring into close engagement with the groove 21. The ring 11 has outturned ends 23 engaging in slots 23, Fig. 2, in the coupling and is adapted to be expanded to the position shown and moved axially of the coupling into the deepest part of the channel 15 for uncoupling the joint. A flanged gasket 13 is seated in the other channel 17 to effect a liquid tight seal between coupling and pipe and bears against the channel wall 28. The arrangement is such that when the ring 11 has been fixed against the side wall 25, the wedging action of the ring on the pipe and coupling is limited to a predetermined maximum pressure. The coupling and pipe may be made of light-weight relatively soft materials such as aluminium or plastic material.
Patent GB-993791-A (GB)
Title: Railway coupler
Inventor: FURNISS LOREE ELWYN
IPC: B61G3/06
Filed: 1961-12-11
Abstract: 993,791. Railway vehicle automatic couplings. BUCKEYE STEEL CASTINGS CO. Dec. 11, 1961, No. 44257/61. Heading B7T. A knuckle type automatic coupler has a lock operating rotor comprising portions 26, 28, Figs. 1, 3 and 6, of elliptical and circular cross-sections 27, 29 respectively, Fig. 2 (not shown), and is otherwise shaped as shown, the rotor being rotated about its axis 20 by a hooked end of a conventional rod 19, and substantially all parts of the eye being below the axis 20 of rotation. In operation, should the coupler pull out from the vehicle to a position beyond that normally permitted by the draft gear, the rod 19 will not apply a counter-clockwise or unlocking torque to the rotor, the hook 42 being first moved upwardly by forces F2, F3 over the shoulder 36, Fig. 6, to lie on the flat surface 34 of the eye, and then, if the pull-out force is continued, the hook will be moved to the Fig. 7 position where it exerts a rearward pull F4 on the rotor eye, which force is below the rotational axis 20 of the rotor. In the inactive position of the rotor and rod as seen in plan view, Fig. 11 (not shown), there may be free play between the rotor and rod of 18 degrees in either direction from their axes aligned position.
Patent GB-1495381-A (GB)
Title: Dispensing apparatus
IPC: B67D1/04
Filed: 1974-12-18
Abstract: 1495381 Liquid metering apparatus PORTER-CHADBURN Ltd 18 Dec 1974 [21 Sept 1973] 44321/73 Heading B8N Liquid, e.g. beer, dispensing apparatus for dispensing a measured quantity on each actuation comprises a governing valve 11 through which liquid is supplied and dispensed from a measuring unit 10 under the control of a valve 15 in a compressed air line for the governing valve and measuring unit. The valve 11 includes a diaphragm 41 urged by pressure to keep a pilot valve 46, 47 closed. The pressure is provided by liquid trapped in an outlet duct 12 from the valve through a chamber 56 to an outlet 13. The measuring unit is of the diaphragm type, Fig. 1, with a liquid chamber 24 and a compressed air chamber 25. The valve 15 has its spool 33 moved by a rod 34 connected to the spool by a lost motion connection 36, 37  and connected to the diaphragm 23 of the measuring unit 10. The liquid is supplied to the unit along lines B1, B2 when the governing valve 11 is at a rest position. The pilot valve 46, 47 is kept closed by liquid pressure in the chamber 56 until the outlet 13 is opened whereupon duct P2 supplies pressurized air to duct P3 to move the spool 51 of the governing valve. The spool movement connects duct B2 to the outlet duct B3 to dispense the liquid from the chamber 24 under pressure of air in chamber 25 supplied along duct P5. The valve 15 is actuated at the end of the dispensing to cause retraction of the spool of the governing valve. In alternative embodiments the spool 51 of the governing valve is under control of a piston (62), Fig. 4 (not shown), or a differential piston (71), (72), Fig. 5 (not shown).
Patent GB-1088469-A (GB)
Title: Method and underwater streamer apparatus for improving the fidelity of recorded seismic signals
IPC: G01V1/38
Filed: 1964-10-30
Abstract: 1,088,469. Seismic prospecting; subaqueous signalling. C. G. McBURNEY, R. D. ARNETT, R. H. PEARSON and G. M. PAVEY, [trading as SONIC ENGINEERING CO.]. Oct. 30, 1964 [Feb. 13, 1964], No. 44361/64. Headings H4D and H4J. [Also in Division F2] A seismic system for exploring geological structures located below a body of water comprises a towed submerged hydrophone streamer containing means for rendering the streamer output insensitive to downwardly-travelling seismic waves. In the embodiment shown, a sectioned flexible streamer is oil-filled to give it neutral buoyancy and each section contains spaced hydrophones of two types, the first, 69, being sensitive to acoustic pressure and the second, 77, 119, being sensitive to particle velocity of the surrounding medium. The velocity sensitive hydrophones are pivotally mounted (Figs. 18 and 19, not shown) within the streamer so that they remain upright in use and are sensitive to vertical components of particle velocity, and their electrical outputs are combined with those of the pressure-sensitive hydrophones. As the pressure and velocity variations for a seismic wave travelling upwardly from sub-bottom strata are in phase whereas those for the same wave received after reflection from the water surface are 180 degrees out of phase, the effects of the surface-reflected wave at least partially cancel in the combined electrical signal which thus provides a substantially noise-free representation of the strata for recording. The velocity-sensitive hydrophones may be connected in anti-phase pairs, one member of each pair being acoustically insulated from acoustic waves (as by a baffle 121, Fig. 37, not shown), to provide cancellation of spurious signals arising from inertial effects caused by motion of the streamer through the water. Transducer details.-Each pressure-sensitive hydrophone 69 comprises a stack of piezoelectric elements (71) (Fig. 14), one end of the stack being coupled to a diaphragm (75) exposed to ambient pressure. Each velocitysensitive hydrophone 77, 119, comprises a freeflooding magnet structure (78) (Fig. 21) and a moving-coil assembly (86, 87, 88). Approximate matching of the sensitivity and impedance of the two types of transducer is provided (Fig. 40, not shown) by connecting the pressuresensitive hydrophones in parallel to a transformer primary winding (145) and connecting the velocity-sensitive hydrophones in series to a secondary winding (146) of the transformer. Details of the streamer and of its towing system are given and an oil-tight seal (Fig. 29), comprising a compressed neoprene disc (57) and retaining bands (48), for use at the junction of two streamer sections (43, 47), is described.