baber/WOPTO huggingface dataset:
Patent GB-1222870-A (GB)
Title: Flexible fire resistant air duct
Inventor: SNELLING CHARLES D
IPC: F16L57/04
Filed: 1968-11-22
Abstract: 1,222,870. Making composite tubes; skelping; corrugating. CRYO-THERM Inc. 22 Nov., 1968, No. 55481/68. Headings B3A and B3E. [Also in Division F2] A fire-resistant heating and air-conditioning duct is made by forming inner and outer concentrically arranged tubular members 29 and 30 from foils with an insulating material filling the annulus defined therebetween, at least one said member being formed of a metal foil, e.g. steel foil, having a melting point of at least 2000‹ F. Both foils constituting the inner and outer tubular members are preferably of steel foil having a thickness in the range of 0À0005 to 0À005 inch and advantageously between 0À001 and 0À003 inch. However, the inner foil tube may be an aluminium, plastics or impregnated paper foil. The insulating material may be a foamed or expanded plastics such as foamed urethane or polyvinyl chloride or expansible styrene beads. Alternatively, the insulant may be glass fibre batting. As shown, the duct may be formed by passing steel foil strips through skelping formers 14 and 20, and seam welding the lapped edges of the respective strips by means of a pulsed copper wheel electrode 17 and a spring-biased shoe electrode 25 respectively, a foaming plastics mix being applied by nozzle 22. Instead of welding the lapped edges of the respective strips, mechanical lock seams 33, 34, Fig. 5 (not shown) may be provided. In another embodiment, Figs. 2 and 3 (not shown), glass batting 37 and steel foil strip 44 are simultaneously wound over a helicallywound inner foil tube having a crimped or welded helical seam, the outer strip being welded by wheel 39. The walls of the duct may be circumferentially corrugated, Fig. 8 (not shown), by utilizing a foil strip which has been passed through coacting corrugating rollers 45, 46 of respectively convexly and concavelycurved form to impart a curvature to the strip, Fig. 6 (not shown). In a modification, Fig. 6a (not shown), the strip is left with plain margins 51, 52 to facilitate lapwelding or mechanical seam-locking. In the corrugated duct construction of Fig. 8 (not shown), axially-spaced rings 59 of activated charcoal are arranged in the expanded plastics insulation to absorb any smoke which may form in the event of ductoverheating. The uncorrugated duct of Fig. 9 is similarly provided with smoke interceptors and the outer surface of the foil may be coated with tin, plastics or zinc. In the embodiment of Fig. 10 (not shown), the foamed plastics insulant is provided with a helically-coiled spring reinforcement 62.
Patent GB-1218226-A (GB)
Title: Machine for forming random fiber webs
IPC: D04H1/72
Filed: 1968-11-22
Abstract: 1,218,226. Machines for random fibre webs. CURLATOR CORP. 22 Nov., 1968 [19 Jan., 1968], No. 55564/68. Heading D1N. A machine for forming a random fibre web has two spaced rotary feed means 20, 22 comprising screens 24, 26 which revolve about fixed suction tubes 32, 34 respectively. The tufts of fibres conveyed by means of air ducts 13, 14 are deposited in mats on screens 24, 26 respectively. Rollers 36, 38 doff these mats of fibres onto adjacent feed plates 44, 46 respectively. Feed rolls 40, 42 pick up the mats and convey them to rotary lickerins 52, 54 respectively which comb fibres from the mats as they rotate. An air stream flows from duct 60 into chamber 70, splits at saber 74 and flows over the teeth of lickerins 52, 54 so that the fibres are doffed therefrom aided also by the centrifugal force. These fibres are conveyed by the air streams through passages 75, 76 between cover plates 77, 78 and side walls 80, 82 respectively of an air box 83 to be deposited in random fashion on a screen belt 90 surrounding a suction box 102. The lower part 81 of cover 78 is adjustable so that the thickness of the single random fibre web formed may be varied.
Patent GB-1247924-A (GB)
Title: Systems for forming droplets
Inventor: BERRY JAMES MICHAEL
IPC: B41J2/035
Filed: 1968-11-27
Abstract: 1,247,924. Selective printing. TELETYPE CORP. 27 Nov., 1968 [7 Dec., 1967], No. 56220/68. Heading B6F. [Also in Division B2] The formation of uniform droplets in an electrostatic printer of the kind employing a writing jet is aided by the provision of a zero or weak accelerating force in the region of droplet formation. A jet of ink formed by a nozzle 10 is accelerated by an accelerating electrode 13, a second electrode 14 being provided and held at the same potential as or slightly higher potential than the electrode 13, so that the accelerating forces acting on the jet between the electrodes are weak. The electrodes are placed at the point where droplet formation takes place. A charged platen 12 accelerates the droplets after formation. Deflecting electrodes 17, 18 are provided. The ink is charged in the nozzle 10. An oscillating potential may be applied to the nozzle and electrodes to assist droplet formation, or the nozzle may be vibrated piezo-electrically.
Patent GB-1173210-A (GB)
Title: Improvements in Power Tools
IPC: E21B1/38
Filed: 1967-12-12
Abstract: 1,173,210. Electric drill. ROBERT BOSCH G.m.b.H. 12 Dec., 1967 [14 Dec., 1966], No. 56369/67. Heading B3C. In an electric drill the gear-box is located in a housing 1 of insulating material and has a metal end-plate 5, in which the gear shafts 3, 9 and 10 are journalled. A fan 15 on motor shaft 3 directs cooling air through the tool into an opening 16 and thence over plate 5 and out through openings 19-21 in housing 1. Plate 5 has air deflector walls 17, 18, and fan 15 may be an axial or radial flow fan. In a modification, air exit holes are provided at the front of the tool.
Patent GB-1423589-A (GB)
Title: Multiple element gas boiler assemblies
IPC: F24H1/06
Filed: 1973-12-05
Abstract: 1423589 Water heaters; draught inducing apparatus CHAFFOTEAUX ET MAURY 5 Dec 1973 [7 Dec 1972 4 April 1973] 56449/73 Headings F4A and F4J A gas boiler assembly comprises three identical water heaters G 1 , G 2  and G 3  mounted one above another, a vertical tube 5 for supplying each heater with water, and a vertical tube 6 for receiving the heated water from each heater. Mixing of the water to be heated with the heated water is either prevented or allowed, the latter being effected by placing a disc having a small hole, e.g. 14 or 15 between tubes 5 and 4 and between tubes 6 and 3. The heaters each have a valve, e.g. 9 for directing the feed water either to the heater or to a bypass tube, e.g. 7. The heaters also have a common flue 25 with an aspirator 26, baffles being provided for heaters G 1  and G 2  such that the section of the connection of each heater to the flue decreases going down the flue. In a second embodiment, Fig. 5, the heaters each have a stopcock, e.g. R 1 , a pump, e.g. P 1  and a check valve, e.g. V 1 . In operation water flowing along tube 28 is heated by drawing part of the flow through the heater assembly G 1 , G 2 , G 3  and then returning the heated part of the flow to the main flow.
Patent GB-1158040-A (GB)
Title: Carton for Eggs and like fragile Articles
IPC: B65D85/32
Filed: 1967-12-15
Abstract: 1,158,040. Egg cartons. BRODRENE HARTMANN A.S. 15 Dec., 1967 [22 Dec., 1966], No. 57112/67. Heading B8P. A moulded egg carton comprises lower and upper portions 1O, 12 hinged together and releasably interconnected by a hook-shaped projection 28 on the lower portion which cooperates with a rib provided in the upper portion 12 and which engages in an aperture 30 in the upper portion, the edge 34 of the lower portion extending downwardly on either side of the projection and the rib comprising a depending collar 36 in front of and to both sides of the aperture. The portions 10, 12 may be hinged along a longitudinal side of the box in which case two projections and two apertures are provided on the side of the box.
Patent GB-1253528-A (GB)
Title: Improvements in or relating to fluid flow control valves
Inventor: KOENG WALTER
IPC: F15B13/08
Filed: 1968-12-02
Abstract: 1,253,528. Hydraulic motor control circuits. KLOCKNER-HUMBOLDT-DEUTZ A.G. Dec. 2, 1968, No. 57125/68. Heading F1P. Spool valves 2 to 7 for controlling supply to and exhaust from a single acting hydraulic motor (not shown) connected to each valve one nested together to form a first group of valves 2 to 4 each having an inlet port 8, an outlet port 9, chambers 11, 12 controlled by a spool 10 and load and return chambers connected to a motor (not shown) and to form a second group of valves 7, 6, 5 separated from the first group by a seal 13 and each valve 7, 6, 5 having an inlet port 9, an outlet port 8, chambers 11, 12 in open communication through bores 14, spools 10 and chambers 15, 16, the arrangement being that on displacement to the left of the spool 10 of any one of valves 2 to 4 the whole of the output of a pump 21 passes to the motor to be actuated whilst on similar displacement of the spool of one or more valves 7 to 5 the associated motor or motors is or are supplied with fluid at constant pressure by a pump 24 and accumulator 27. With all spools 10 of the valves 2 to 4 in the neutral position shown pressure fluid passes from port 8 to a return line 29 via an annular channel 12 in each valve casing, an aperture 20 connected to the channel 12 of valve 4 and opening into a bore 19. On moving spool 10 of say valve 4 to the left pressure fluid is isolated from channel 12 at valve 4 and is connected to a chamber 15 which in turn is connected to the actuated motor, and on moving said spool 10 to the right and past its central position, chamber 15 and hence the actuator is exhausted to the line 20 via a chamber 16, and the associated bore 19, and also the delivery of pump 21 is connected to line 29, since channel 12 of valve 4 is no longer isolated from the pump 21. On moving spool 10 of say valve 7 to the left, accumulator pressure in chamber 11 is transmitted to the actuator via chamber 15 and pressure is maintained in chamber 11 and channel 12 of valves 5, 6 through apertures 14 thereby connecting the chambers 11 and channels 12 in parallel.
Patent GB-1110168-A (GB)
Title: Bituminous mixes comprising treated bauxite residues
Inventor: WARGALLA GERHARD
IPC: C04B18/04
Filed: 1966-12-21
Abstract: A filler for a bituminous mix is prepared by washing or neutralizing the finely divided bauxite residues until the content of water-soluble alkali in the residues is less than 1% by weight, preferably 0.6% by weight or less.  The washing may be performed with hot water and the resulting slurry filtered and the filter cake dried and milled.  Alternatively the residue may be treated with an inorganic acid, e.g. H2SO4.  The specific surface of the prepared filler may be controlled by adjusting the pH of the washing medium. A bituminous mix is prepared by mixing a bituminous binder with the treated bauxite residue, and, if desired, other fillers.  For example a bituminous mortar may be prepared from 50-67% by wt. of the prepared filler and 33-50% by wt. of bitumen by mixing the components at 150 DEG  C. until homogeneous or 6.2% of bitumen 6.2% of bauxite residue and 87.6% by weight of broken basalt may be mixed to give a road surfacing material.  A table is given to show that the surface area of the treated filler increases with the decreasing pH of the washing liquid.
Patent GB-1175197-A (GB)
Title: Improvements in or relating to Burners.
IPC: F23D17/00
Filed: 1966-12-22
Abstract: 1,175,197. Multiple fuel burners. BABCOCK & WILCOX Ltd. 22 Dec., 1966 [24 Dec., 1965], No. 57396/66. Heading F4T. A multiple fuel burner comprises a tube 1 supplied with liquid or pulverized fuel, an encircling sleeve 8 supplied with combustion air, and an outer encircling casing 14 supplied with gaseous fuel, the discharge ends of the sleeve and casing 14 tapering inwardly and the end of the casing 14 being closed by a refractory wall 16 such that the gaseous fuel is discharged through circumferential slots 13 provided on the sleeve 8. An impeller arranged at the discharge end of tube 1 is axially movable between positions 4 and 4A. The air is supplied through a windbox 7 provided with dampers 9 controlled from outside the burner.
Patent GB-1345945-A (GB)
Title: Isomerisation of
IPC: C07C49/647
Filed: 1971-12-10
Abstract: 1345945 Isomerication of nopinone L GIVAUDAN & CIE SA 10 Dec 1971 [11 Dec 1970] 57455/71 Heading C2C A process for the isomerization of nopinone with the formation of 4-isopropenyl-cyclohexanone and 4-isopropylidene-cyclohexanone comprises treating nopinone with an orthoformic C 1 -C 4  alkyl ester in the presence of an acidic catalyst and subjecting the product obtained to acidic hydrolysis. Examples are furnished.
Patent GB-1419855-A (GB)
Title: Metal inserts for thermoplastic material
IPC: F16B37/12
Filed: 1973-12-12
Abstract: 1419855 Metal inserts YARDLEY PRODUCTS CORP 12 Dec 1973 [17 Jan 1973] 57494/73 Heading F2H A metal insert 2, having an internally threaded bore in a substantially cylindrical body, is provided with a plurality of spaced annular ribs 6 each having one face 20 disposed at an angle of substantially 90 degrees to the cylindrical surface 18, the opposed face 16 being at an obtuse angle, these surfaces being separated by a curved face 24. The ribs 6 may have circumferentially spaced channels 26 which may be axially aligned. One end, the outer end, may be formed with a knurled portion (Fig. 4, not shown). Upon insertion in an aperture 42 in thermoplastics material by an ultrasonic or heated tool, the softened material flows around ribs 6 into recesses 8. Upon hardening, the insert is anchored in position. Hardened material in channels 26 prevents rotation of the insert 2. The threaded bore may not extend through the whole length of the insert.
Patent GB-1143250-A (GB)
Title: The preparation of mono- and di-alkyl-diphenylamines
Inventor: KAPLAN EARL
Filed: 1966-12-23
Abstract: 1,143,250. Mono-and di-alkyl diphenylamines. AMERICAN CYANAMID CO. 23 Dec., 1966 [17 Feb., 1966], No. 57712/66. Heading C2C. A mixture of mono- and di-octyl- or nonyldiphenylamines containing at least 60% by weight of the dialkyl derivative is prepared by reacting diphenylamine with an octene or nonene under reflux conditions and in the presence of a Friedel-Crafts catalyst within the respective temperature ranges of 120-135‹ C. or 130- 160‹ C. at atmospheric pressure, there being employed at least 2 moles of alkene per mole of diphenylamine. The examples describe the alkylation of diphenylamine with diisobutylene and a nonene obtained by polymerization of propylene consisting mainly of dimethyl heptene.
Patent GB-1331068-A (GB)
Title: Gas permeable membranes and process for making same
IPC: C01B32/50
Filed: 1970-12-04
Abstract: 1331068 Hollow fibres DOW CHEMICAL CO 4 Dec 1970 [4 Dec 1969] 57732/70 Heading B5B A gas permeable permselective membrane, preferably in the form of one or more hollow fibres, comprises a dispersion of a thermoplastic resin having an oxygen permeability of at least 0À5 Î 10<SP>-10</SP> c.c. cm./cm.<SP>2</SP> sec. cm. Hg at 37‹ C., and 10 to 75 weight per cent of an organosiloxane, a hydrocarbon rubber extender oil or mixture thereof, the oil and siloxane being compatible with the thermoplastic resin at or above its melting temperature and incompatible therewith at ambient temperatures. The thermoplastic resin is, suitably, an α-olefin polymer or interpolymer prepared from an olefin with 2 to 10 carbon atoms having alkyl side chains, a preferred polymer is poly-4-methyl-pentene-1. The polysiloxane, which is preferably a low viscosity liquid at ambient temperatures, suitably contains an average unit of formula R n SiO 4-n  where n has an average value from #2 0À9 to 3 and R is a monovalent hydrocarbon or halogenated hydrocarbon radical. The preferred rubber extender oil is a polybutene oil. The membrane may be prepared by extruding a melt containing a ratio by weight of siloxane to thermoplastic resin of between 1 : 1 and 1 : 5 and an oil to resin ratio of between 0À8 : 1 to 1À5 : 1. Alternatively hollow fibres may be prepared containing thermoplastic resin and hydrocarbon oil and these may be impregnated with a polyorganosiloxane, suitably polydimethylsiloxane, by leaching out the extender oil with a solvent (e.g. xylene) which is a non- solvent for the thermoplastic resin and dipping the leached fibres in the siloxane. The membrane may be exposed to high energy radiation, e.g. X-rays, to cross-link the polyorganosiloxane.
Patent GB-1244047-A (GB)
Title: Improvements in or relating to juice extraction apparatus
Inventor: FARMER JOHN
IPC: B30B9/12
Filed: 1968-12-23
Abstract: 1,244,047. Screw presses. WARD FOODS Inc. 23 Dec., 1968, No. 58283/70. Divided out of 1,244,046. Heading B1D. An array of parallel screw extrusion presses have a common supply hopper 2 delivering crushed and washed bagasse into their individual inlets, their annular extrusion orifices being variable in area by axially movable plugs 57, urged by individual pistons under a common fluid pressure towards the closed positions. The press barrels 43 include internal breakers 50, some of which are replaced by wash liquid nozzles. The screw pitch decreases towards the orifice but is uniform upstream of the barrel where it pushes material across screens defining the hopper floor.
Patent GB-1442363-A (GB)
Title: Handle polishing machines
IPC: B24B41/06
Filed: 1973-12-17
Abstract: 1442363 Polishing handles L DUNN 24 Feb 1975 [17 Dec 1973] 58318/73 Heading B3D A holder 2 for supporting handles 36 on the turntable 1 of a polishing machine comprises upper and lower clamp members 3, 4 each having a single groove 9, 28 for receiving two aligned handle shanks 35, means mounting the clamp members for relative movement, and support means 34 projecting from the lower clamp providing handle supports lying above the level of the grooves. A number of the holders are circumferentially spaced on the turntable which is indexed to present the holders to a number of workstations, one of which is a loading/unloading station, and the others of which are polishing stations having wheels rotating on axes parallel to tangents to the turntable. Each holder has an upper clamp member 3 in the form of a generally triangular plate 3 loosely mounted on a pivot shaft 6 mounted in supports 7, 8 on the turntable. The underside of the plate has a groove 9, and a bolt 11 extends from the plate through a hole 13 in the turntable and has a head 12. A spring 14 acts to bias the upper clamp member downwardly to a clamping position against the lower clamp member 4 which is secured by bolts to the turntable and has a single groove 28 facing groove 9. The head of the bolt abuts a pad 15 on a lever 16 which is movable about a pivot 17 on the turntable to raise the bolt and hence the upper clamp member 3 by a cam 18 mounted on a fixed part 21 and engaging a follower 18 on the lever. A pair of brackets 29 associated with each holder are secured to the underside of the turntable, one bracket of each pair being adjacent the end of the grooves. The brackets are inclined upwardly and each has an adjustable bolt 32 provided with a plastics cap 34 to provide a support means for a handle. The shanks 35 of a pair of handles 36 are aligned and held in the grooves of the clamp members, the handles being supported by the cups 34 while the surfaces 37 are polished by the wheels at the polishing stations.
Patent GB-1454081-A (GB)
Title: Digital data magnetic tape recording apparatus
IPC: G06F11/00
Filed: 1973-12-19
Abstract: 1454081 Digital storage systems INTERNATIONAL BUSINESS MACHINES CORP 19 Dec 1973 [26 Dec 1972] 58905/73 Heading G4C Digital data is recorded on multi-track magnetic tape in the form of groups of parallel-bit bytes. Each group is in error-correcting code and includes error check bits. The system includes error detecting and correcting means which operate on the group according to the code employed and which also provides a second form of error correction which depends upon signals (pointers) indicating which of the tracks are likely to be in error. An error correction latch (VPL, Fig. 8, not shown) is set whenever an error in a corresponding track has been corrected. When a said group of bytes is read the error detecting and correcting means receives a signal from each of the latches which has been set. The signal from a set latch may be used to deadtrack a corresponding track during preamble portions of readback. A set correction latch remains set until a given number of bits has been read from the corresponding track without error.
Patent GB-1299998-A (GB)
Title: Improvements in or relating to nickel-surfaced electrotypes
IPC: C25D1/20
Filed: 1970-12-14
Abstract: 1299998 Treating Ni-surfaced electro-types POLYGRAM GmbH 14 Dec 1970 [10 March 1970] 59254/70 Heading C7B A nickel-surfaced electro-type, e.g. for a gramophone record, is treated prior to deposition of a further metal layer on its surface by degreasing the electro-type by operating it as a cathode immersed in an alkaline bath, and thereafter momentarily operating it as an anode while still immersed in said bath by alteration of the direction of current flow, so that the surface is provided with a parting layer to facilitate removal of said further metal after its deposition. As shown, a record electrotype 7 is treated at 50-55‹C. in bath 2 with an alkaline solution containing, per 150 litres, 2625 g NaOH, 4125 g Na 2 CO 3 , 750 g Na 2 SiO 3  and 15 g wetting agent, first as cathode and then as anode for a fraction of a second, and is then sprayed with water in 3 by spray 10, neutralized in aqueous sulphamic acid in bath 4 and sprayed with tap- and distilledwater in container 5, the device 6 moving the workpiece to the working stations.
Patent GB-1234750-A (GB)
Title: Improvements in or relating to arrangements for the continous manufacture of moulded articles from synthetic plastics materials
Inventor: ZIPPEL RICHARD
IPC: B29C39/16
Filed: 1968-08-08
Abstract: 1,234,750. Moulds on endless belts. R. ZIPPEL, [trading as RICHARD ZIPPEL & CO. K.G.]. 8 Aug., 1968 [26 Aug., 1967], No. 59528/70. Divided out of 1,234,296. Heading B5A. In a continuous moulding process the mould parts which define the mould cavity are carried by two endless conveyers of which the lower is longer than the upper and passes below a supply nozzle leading from a mixing chamber to which resin materials from containers 101a, 101b are fed by pumps 102a, 102b. The mould parts may define cavities of different shapes e.g. shoe soles of different shapes and sizes. The mould parts may be resiliently mounted on bridging elements pivotally attached to chain links of the conveyers.
Patent GB-1408862-A (GB)
Title: Vehicle suspension unit
IPC: F16F9/08
Filed: 1971-12-31
Abstract: 1408862 Valves in diaphragm-type fluid spring units; valves MOULTON DEVELOPMENTS Ltd 18 Dec 1972 [31 Dec 1971] 60979/71 Headings F2S and F2V In a fluid spring unit of the type having a diaphragm bounded working chamber 1 in liquid communication through a ported separating wall 16 with an hydraulic accumulator chamber 30 (biased by a rubber body, not shown, or gas in a chamber 32, Fig. 6, not shown) via two precompressed rubber one-way valve members 41, 42, one on each side of the wall 16; each valve member 41, 42 is compressed between the wall 16 and a rigid plate 43, 44 which overlies a major part of the valve member, and therefore causes it to deform in compression, rather than in bending, to allow the one-way flow. The rigid plates 43, 44 are differently shaped to provide different damping characteristics on compression and rebound of the unit. The valve member 41 controls flow through slots 24 and 25, and extensions 41b of the main flap, which are unrestrained by the rigid plate 43, deform in bending to control flow in the same direction through ports 28. The extensions react to smaller changes in pressure than does the main flap. The valve member 42 controls flow in the opposite direction through slots 26, 27. Hole(s) 29 provide a permanently open path through the wall 16.