baber/WOPTO huggingface dataset:
Patent GB-1410201-A (GB)
Title: Centrifugal ore concentration
IPC: B03B5/74
Filed: 1972-11-08
Abstract: 1410201 Centrifugal ore concentration D C DERINGER 8 Nov 1972 [13 Dec 1971] 51463/ 72 Heading B2P An ore is concentrated by feeding a slurry of the ore through a hollow helicoidal member rotating about its longitudinal axis, whereby a density distribution of particles in the slurry is formed across the width of the interior of the member, and a fraction of the slurry containing concentrated ore particles is tapped off from the outer periphery of the interior of the member whilst the latter is rotated. An ore concentrator, Fig. 1 comprises a pump 12, preferably of the pulsating type, which feeds the ore slurry under pressure via a surge chamber 42 to the upper end of a hollow shaft 26 which is rotated by a motor 54 through a belt and pulley arrangement. Alternatively the slurry may be fed to the shaft by gravity. The shaft 26 consists of sections 48, 116, 114, 118 and 62. The section 114 is in the form of a frusto-conical drum Fig. 4, which does not communicate with the sections 116 and 118 and which carries a hollow helicoidal member 88 to form a centrifuge subassembly 44. The slurry flows through an opening 122 in shaft section 116 via a curved tube 126 to the interior of the member 88 where fractionation of the particles take place by centrifugal force. The member 88 may be in the form of a helicoidal tube but preferably it comprises a plurality of hollow ceramic blocks 140 of trapezoidal cross-section, Figs. 5 and 6, each having a triangularly shaped opening 142 therein, the openings 142 defining a helicoidal passage 94 when the blocks are connected in end to end relation by a cable or rod extending through aligned openings 150 through the wall of the blocks. The blocks are wrapped with glass fibre tape 152. At one or more points along the inner periphery of the passage 94 there is provided a flow-divider 132, Fig. 5, which deflects an outer branch of the slurry stream containing ore concentrate into a discharge branch 134 connected by a tube 90 (92) rotatable with the member 88 to a compartment 76 (78) of a concentrate launder subassembly 68 secured to the frame 30 of the concentrator. The inner branch of the slurry stream containing the tailings is discharged via a drain tube 96 which is connected to the outlet end of the passage 94 in the member 88 and which opens into a tailings launder 98 secured to the frame 30. Water from a line 40 may be fed via a stuffing box 34 to the interior of the shaft sections 62, 118 and through a supply line 112 helically arranged around the drum 114 and enters the passage 94 in the member 88 in the same direction as the slurry via tapping tubes 120a. 120b, 120c, connected between the line 112 and the member 88. The water may be used to dilute the slurry or for introducing additives therein. Alternatively a solvent may be introduced through the line 112 if blockage of the passage 94 occurs.
Patent GB-1082389-A (GB)
Title: Driving means for rolling mills
IPC: H02P7/292
Filed: 1964-12-18
Abstract: 1,082,389. Rolling mill drives. ALLM€NNA SVENSKA ELEKTRISKA A.B. Dec. 18, 1964 [Dec. 20, 1963], No. 51526/64. Heading B3M. [Also in Division H2] A rolling mill is driven by two D.C. motors which are mechanically coupled and are each adapted to be supplied through a separate converter to provide a positive torque. Rapid retardation is afforded by reversing the armature or field connections of one of the motors so that its torque opposes that of the motor, the converter associated with the first motor then acting as an inverter. The motors may be braked simultaneously by reversal of connections. In another arrangement, a single motor is supplied through two converters whose outputs may be either added together or in opposition, the latter operation being effected by actuation of a change-over switch between one of the converters and the armature of the motor.
Patent GB-1173978-A (GB)
Title: Vacuum Deposition Apparatus
Inventor: BARKER DENNIS WALTER
IPC: C23C14/56
Filed: 1967-11-14
Abstract: 1,173,978. Vapour deposition apparatus. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. Oct.28, 1968 [Nov. 14, 1967], No.51692/67. Heading C7F. A vapour deposition apparatus comprises an inner chamber 10 having a roll of material and an outer chamber 1 with e.g. two sources of aluminium for coating both sides of the material which may be e.g. polyester sheet or fabric, and may carry separate articles to be coated. Each source may have a movable shutter 17, and the opening in the chamber 10 may be lined with e.g. p.t.f.e. to act as a seal. The chamber 10 and the intermediate rollers may be mounted on an end door of the chamber 1.
Patent GB-1445660-A (GB)
Title: Offset pallet lever for watch escapement
IPC: G04B15/08
Filed: 1974-11-29
Abstract: 1445660 Timepiece escapements TIMEX CORP 29 Nov 1974 [19 Feb 1974] 51928/74 Heading G3T In order to allow a pallet lever to have its pivot axis 13 within the outer diameter of a balance 5 without the use of an additional lever supporting part, the lever comprises a first portion 12, a second portion 21 extending axially and outside the outer arc of the balance, and a third portion 28 extending from the second portion whereby the first and third portions can be pivotally mounted at opposite sides of the balance e.g. by pins 29, 31 fixed respectively in plate 22 and bridge 23. As described the lever is integrally moulded from acetal glass-filled plastics. The portion 21 is a hollow column depending from a pallet arm 15 which forms part of the first portion. The latter also includes an impulse arm 18 having a flat part 18a which terminates in fork 19, and a rib 18b forming guard pin 20.
Patent GB-1202398-A (GB)
Title: Containers for handling or transporting bulk goods
Inventor: RUEGG MAX
IPC: B65F1/12
Filed: 1967-11-20
Abstract: 1,202,398. Skips with bottom discharge doors. SULZER BROS. Ltd. 20 Nov., 1967 [30 Dec., 1966], No. 52712/67. Heading B8H. A skip 1 with bottom discharge doors 6, 7, has rollers 8 on the doors which run on the ground or the floor of a vehicle when the skip is raised with the doors unlocked during discharge of the contained material. The doors are held closed by a bolt 12, moved by a pivoted lever 15, which passes through lugs 11, 17. Stops 21 prevent the doors reaching a vertical position during discharge so that they are automatically closed as the skip is set down. In a second embodiment, Fig. 4 (not shown), the doors are provided with chamfered skids adjacent their free ends. The skips are stackable.
Patent GB-1135976-A (GB)
Title: Polymerisation of olefines
IPC: C08F10/00
Filed: 1967-11-21
Abstract: 1,135,976. Olefin polymerization. SOLVAY & CIE. 21 Nov., 1967 [22 Nov., 1966], No. 52886/67. Headings C3P and C3R. Olefines are polymerized or copolymerized with each other and/or diolefirie in the presence of a catalyst comprising a reaction product of one or more transition-metal compounds and a macromolecular compound having oxygencontaining functional groups but substantially free of hydroxyl groups, this product being activated by a metal, a hydride or an organo metallic compound of a Group I, II or III metal of the Mendeleef Periodic Table. Preferred functional groups are carbonyl, carboxyl and oxo groups, and the preferred macromolecular compound is a polyester, polycarbonate, polyether, polyacetal, polyacrylate, polymethacrylate, polyvinylketone or polymer derived from an ether and a vinyl acetal. The transition metal compound may comprise one or more halogenated derivatives of a Group IVA, VA or VIA metal, such as halides, oxyhalides and/or alkoxy-halides of titanium and vanadium. The activator may be a trialkyl aluminium or aluminium alkyl halide. In the examples, polyethylene, a copolymer of ethylene and propylene, or a terpolymer of ethylene, propylene and dicyclopentadiene, were prepared using one of the following catalyst systems: (a) titanium tetrachloride and/or vanadium oxychloride reacted with the condensation product derived from 2,2-bis-(phydroxyphenyl - propane) and phosgene, followed by activation with tri-n-propyl aluminium, di-ethyl aluminium chloride or tri-iso butyl aluminium; (b) titanium tetrachloride reacted with the condensation product of terephthalic acid and ethylene glycol, followed by activation with tri-isobutyl aluminium; (c) titanium tetrachloride reacted with ethyl polymethacrylate, poly - (2,2 - bis - chloromethyl propyloxide), poly - (phenylene oxide), polyvinyldecalyl ether, polyvinylisobutyl ether, or polyvinylbutyrol, followed in each case by activation with tri-isobutyl aluminium; (d) vanadium oxychloride reacted with polyvinyl acetonylketone, followed by activation with tri-isobutyl aluminium; (e) titanium tetrachloride and vanadium oxychloride reacted with a polysulphone, followed by activation with tri-isobutyl aluminium.
Patent GB-1184382-A (GB)
Title: Improvements in Self-propelled Floating Dredges
Inventor: CERUTTI DOMENICO
IPC: E02F9/02
Filed: 1967-11-22
Abstract: 1,184,382. Dredgers. D. CERUTTI. 22 Nov., 1967 [26 Nov., 1966], No. 53037/67. Heading B7A. [Also in Division E1] Excavating apparatus supported ahead of a self-propelled floating dredge is connected to the hull of the vessel by balance levers 19 pivotally mounted on shafts 21 extending from the sides of the hull. The balance levers 19 are linked to power-operated jacks 13 for raising and lowering the excavating apparatus relative to the vessel. The apparatus shown includes three motor saws 1, 2, 3, endless excavating belts 4, 5, 6 and a detritus conveyor belt 8 which transfers the excavated material to suction, collection and discharge chamber 12. In the embodiment of Fig. 4 the ejector pipes 16 are supported by amphibious vessels 33 and 34 each with a paddle drive wheel 36 and 35 and hydraulic lifting device for driving the amphibious vessels if they become grounded on sandbanks or shoals.
Patent GB-1131509-A (GB)
Title: Manual latch for a coreshaft bearing in a web winding machine
IPC: B65H18/04
Filed: 1965-12-15
Abstract: 1,131,509. Feeding webs. DOMINION ENG. WORKS Ltd. 15 Dec., 1965 [21 Dec., 1964], No. 53218/65. Heading B6B. A web winder for paper machines includes mounting frame members, each carrying a mounting bracket means, a coreshaft having a bearing housing on each end thereof, being adapted to have a web of paper wound thereon to form a roll and being mounted between the mounting frame members in the mounting brackets, means for releasably clamping the coreshaft bearings to the mounting brackets, each clamping means including a latch pivotally mounted on the associated mounting bracket and adapted to clampingly engage the associated core-shaft bearing and a toggle linkage operatively connected between the mounting bracket and the latch such that it exerts a clamping force on the bearing through the latch when it is in an operative position. The winder is preferably a slitter/winder (13, Fig. 1, not shown) having a coreshaft (18) supported on bracket means (11) and bearing a web roll (19) this web roll being supported and rotated by surface contact with two drive drums (17) and (20). The web (14) passes through slitters (16) and the slit web passes around support drum 17 on to coreshaft 18. Fig. 3 shows a preferred form of the latch means, wherein coreshaft bearing box 11 is mounted on vertical frame member 12 and the reduced diameter part 27 of a coreshaft is located between inverted U-shaped bearing bracket flanges 25. Transverse positioning of the coreshaft is controlled by the shoulder 26 of the bearing housing. A latch means 28 is pivoted at 29 such that its end 30 may clampingly engage the coreshaft bearings. Pivotal movement of the latch means is effected by a two link toggle means 32 and 34 pivotally connected at 31 and 36 between the latch at 28 and the mounting bracket at 35. Fig. 3 shows the engaged position of the toggle wherein the toggle links 32 and 34 are in an " over centre position " retained by stop screw 38 abutting a stop face of link 34. The toggle may be disengaged thereby releasing the latch, by rotating the pivotally mounted handle means 41 carrying release lever 42 such that the lever 42 displaces the control toggle link 33 away from the bracket 25. The toggle links may be adjustable in length.
Patent GB-1339940-A (GB)
Title: Process for producing granular compositions for use in agri culture and horticulture
IPC: C05G3/60
Filed: 1971-11-16
Abstract: 1339940 Granular compositions SUMITOMO CHEMICAL CO Ltd 16 Nov 1971 [16 Nov 1970] 53235/71 Heading A5E A process for producing an agricultural or horticultural granular composition comprises providing a wetted combination of an active ingredient and a carrier having the following particle size distribution:- larger than 149Á (100 mesh) 0-30% 149Á to 46Á 40-90% smaller than 46Á (300 mesh) 10-30% and mixing to obtain a granular composition having a major proportion of particles with a size between 105Á (150 mesh) and 297Á (48 mesh). Specified carriers are kaolinite type clay, talc, bentonite, perlite, pumice, silica rock, calcium carbonate, fertilizers, shell powder, leaf powder, stalk powder, wood powder, crystalline saccharides, polyvinyl chloride, polystyrene, polyethylene, anhydrous sodium sulphate and salt. Optional ingredients are moisture-absorbing substances and binders. In examples the active ingredients are fenitrothion, 2-sec. butyl phenyl-N-methylcarbamate, 3, 4-dimethyl-phenyl-N-methyl carbamate, diazinon, dimethoate, N-(3, 5-dichlorophenyl) succinimide, and 2, 4-D.
Patent GB-1241488-A (GB)
Title: Break-jack assembly for an automatic telephone exchange main distribution frame
Inventor: GILISSEN HERMANUS PETRUS JOHAN
IPC: H01R13/703
Filed: 1969-10-31
Abstract: 1,241,488. Two-part couplings. AMP Inc. 31 Oct., 1969 [22 Nov., 1968], No. 53371/69. Heading H2E. A telephone jack has normally closed pairs of contacts 27 mounted in compartments of an elongated insulating housing 1 for mounting on a panel and having a cover plate 4 containing rows of holes 6, 8, 10. Each contact 27 has a locating tongue 32 above a terminal post 28 to which a wire may be wrapped or clipped, and is so shaped that each opposed pair may be engaged by an insulatirg member 62 of a test plug 52 to break the contact which is normally made at an area 40. Connections to a test circuit are made by four conducting tabs 56 of the plug 52 which are engaged between a portion 50 of a corresponding contact 27 and a side wall 17 of the housing 1. The plug 52 carries two insulating members 62 joined by an offset rib (64, Figs. 8, 9, not shown) which locates in a corresponding slot (12, Fig. 1, not shown) between a pair of holes 8 to polarize the plug and housing. A subscriber may be isolated by inserting a simple insulating plug through a hole 8, and a call may be listened in to by a plug unit having the members 62 omitted.
Patent GB-1144378-A (GB)
Title: Regeneration of catalysts
Inventor: HAMBLING JAMES KEITH
IPC: B01J23/94
Filed: 1966-11-29
Abstract: 1,144,378. Revivifying spent polymerisation catalysts. BRITISH PETROLEUM CO. Ltd. 6 Sept., 1967 [29 Nov., 1966], No. 53405/66. Heading B1E. Catalysts comprising Co or Ni on activated charcoal which have lost their activity in the conversion of olefins to linear polymers are revivified by leaching out the major part of the metal values with a mineral acid, heating the residue at 150-1000‹C to remove adsorbed polymer, cooling the carrier and reimpregnating with an aqueous solution of a heat decomposable Co or Ni salt. The catalyst may be heated in a carrier gas e.g. H 2 , N 2  on steam. After regeneration the catalyst may have a surface area of 685 m<SP>2</SP>/gm.
Patent GB-1196950-A (GB)
Title: Improved Welded Tube Coupling
Inventor: NICOL JOHN
IPC: F16L13/02
Filed: 1967-11-27
Abstract: 1,196,950. Pipe joints. WEATHERHEAD CO. 27 Nov., 1967, No. 53800/67. Heading F2G. [Also in Division B3] A welded pipe coupling is formed by securing a sleeve 13 about the end of a pipe 11 as by swaging, the said sleeve having an axial projection 31 to define a cylindrical surface 32 concentric with the pipe surface and a pair of radial end surfaces 23, 24 with one of said end surfaces being co-planar with the end face 36 of the pipe, positioning the said cylindrical surface, radial surface and end face in abutting relationship with corresponding surfaces 33, 34, 17 formed at the adjacent end of pipe 10 or fitting, and applying fusion heat along the zone of the mating surfaces to form a single weld bead 37 fusing the mating surfaces together. As shown, the corresponding surfaces are formed by the end of the tube 10 and a similar sleeve having an axial projection 21. The axial projections are sufficiently short to be entirely fused into the weld bead. In modified embodiments, Figs. 2-4 (not shown), the corresponding surfaces are formed on the ends of a T or elbow fitting 41, a boss 51, or a nipple 54. The welding may be effected by a tungsten electrode power-driven around the coupling which is clamped in a fixture or welding head. The fixture may provide a chamber, which can be filled with a suitable gas to eliminate contamination of the weld.
Patent GB-1077809-A (GB)
Title: Improved device for cutting weft threads
IPC: D03D49/70
Filed: 1965-12-20
Abstract: A weft thread cutting device comprises an arm that can be swung into the shed between the warps to sever the thread between fixed and movable jaws, held in abutment under pressure.  The arm (1, Fig. 1 not shown) is biased by a spring (15), and is swung by means of a follower arm (11) engaging a cam (20).  The movable jaw (4) is spring biased and connected to a spring follower arm (6) engaging a cam (8). In the closed position the jaws abut over substantially their entire length.  A finger (24, Figs. 6, 7, not shown) may be fixed to the movable jaw to press the weft into the fell of the cloth.
Patent GB-1110088-A (GB)
Title: New curable epoxy compounds and halohydrins and their preparation
IPC: C07D303/04
Filed: 1966-12-01
Abstract: Infusible epoxide resins are made by reacting a compound of formula <FORM:1110088/C3/1> wherein M is m- or p-phenylene (optionally mono- or di-substituted by halogen, nitro or C1- 5 alkyl), and R, R1 are C1- 5 alkyl, with a curing agent.  Specified epoxides are those where M is unsubstituted m- or p-phenylene, and R, R1 are each methyl.  In Example 5, the m-isomer is cured with one of the following:-oxalic, maleic, phthalic and pyromellitic acids; phthalic, trimellitic and pyromellitic(di-) anhydrides; LiH, Et4NOH and tri-N,N-dimethylaminomethylphenol. Other specified curing agents are 2 - dimethylaminomethylphenol, PhCHMeNMe2, PhCH2NMe2 and BF3-EtNH2ALSO:The invention comprises compounds of formulae <FORM:1110088/C2/1> <FORM:1110088/C2/2> wherein M is m- or p-phenylene (optionally mono- or di-substituted by halogen, nitro or C1- 5 alkyl), R and R1 are C1- 5 alkyl, and Y is a halogen atom.  The dihalohydrins, prepared by reacting the corresponding dialkenylbenzene with at least 2 mols hypohalous acid, may be converted to the diepoxides by reaction with at least 2 mols of strong base.  In exemplified compounds, M is unsubstituted m- or p-phenylene, R and R1 are methyl and Y is Br.
Patent GB-1362812-A (GB)
Title: Control system for injecting cooling towers
IPC: F28F27/00
Filed: 1971-06-28
Abstract: 1362812 Evaporative heat exchangers BALTIMORE AIRCOIL CO Inc 28 June 1971 [19 May 1971] 54081/73 Divided out of 1362811 Heading F4K  In a heat exchanger comprising an injector duct in which air is evaporatively cooled by contact with sprayed water, which subsequently collects in a sump 16 whilst the cooled air passes out of the duct, the spray means 15 are located at the air inlet end of the duct to cause a concurrent flow of air through the duct, and a plurality of dampers 19m are located in the air discharge end of the duct and are pivotally adjustable between an open and a closed position to regulate air flow through the duct. The dampers are preferably actuated by a thermal sensor 36 located in the water outlet line 17 from the sump 16. 19s are fixed vanes to guide the air discharging from the heat exchanger upwardly. 34 is a heat load through which the cooled water is directed before returning to the spray heads 16 of the heat exchanger. In the form shown, the increase in air pressure in the duct as the dampers are closed is relieved by leaking the air through port 38 into a plenum chamber 40, the air being recycled to the duct via a slit 43. Alternatively (Figs. 1, 3, 4 and 5) after partial closure of the dampers the sensor 36 acts to reduce the water supply to the spray heads.
Patent GB-1455430-A (GB)
Title: Welding and flash removal mechanism
IPC: B23D79/02
Filed: 1973-11-22
Abstract: 1455430 Shearing; making elongate workpieces KELSEY-HAYES CO 22 Nov 1973 [2 Jan 1973] 54269/73 Headings B3W and B3A A device for welding two lengths of metal wire or other stock and removing the flash from the resulting welded workpiece comprises a first pair of dies 12, 13 movable towards and away from each other and a second pair of similarly movable dies 14, 15. Aligned cavities 25, 26 and 27, 28 give the stock lengths when the dies of each pair are moved towards each other and moving the pairs of dies towards each other forms an upset 39 to weld the stock. The resulting workpieee is placed in a second set of aligned cavities. The workpiece is a loose fit within the cavity 32, 33 of the first pair of dies and is gripped by the cavity (34), (35) of the second pair of dies so that on moving the die parts towards each other a cutting edge 37 around the cavity 32, 33 shears off the weld flash 39.
Patent GB-1484688-A (GB)
Title: Fluid flowmeter
IPC: G01P5/01
Filed: 1974-12-18
Abstract: 1484688 Fluid flowmeter HONEYWELL Inc 18 Dec 1974 [19 Dec 1973] 54567/74 Headings G1G and G1N A fluid flowmeter 10, see Fig. 1, comprises means for inducing in the fluid a turbulence having an oscillatory component, the frequency of which is a function of flow-rate, a sensor 11 which is caused to vibrate by the turbulence, the sensor consisting of a length of resilient wire coated with a magnetically anisotropic magnetostrictive layer, an oscillator 12 for energizing the sensor, and a detector 14 for detecting the output from the sensor. The sensor may comprise a berylliumcopper wire coated with an anisotropic magnetostrictive nickel-iron, permalloy, layer. Alternatively, the wire core may be made of phosphorbronze or tungsten, or the coating on the wire may be of two kinds, one having a richer nickel content than the other, Fig. 3 (not shown). The coated wire may be insulated. The sensor, see Fig. 6 may be U-shaped, a drag body 27 being provided at one end, and a bluff body 26 at the other end. In use, fluid flowing around the bluff body generates vortices which act on the drag body. This causes periodic bending of the magnetostrictive wire, which produces a fluctuating signal, the frequency of which is proportional to flow-rate. As shown in Fig. 1, a broad band amplifier 13 and detector 14 may be used to detect the frequency, and an amplifier 15 and frequency meter or counter 16 may be provided for measuring the frequency.