baber/WOPTO huggingface dataset:
Patent GB-1481546-A (GB)
Title: Segmented earth boring drill bit
IPC: E21D3/00
Filed: 1974-10-23
Abstract: 1481546 Boring earth &c HUGHES TOOL CO 23 Oct 1974 [2 Jan 1974] 45780/74 Heading E1F An earth boring drill bit, e.g. of the type used to enlarge a pilot hole between underground passages and which can be dismantled to facilitate transport through the passages, includes a first part consisting of a stem 11 having connection means 13 for attachment to a drill pipe (not shown) and carrying a collar 17, base plate 15 and a first pair of laterally extending cutter supports 21, 23 which together define pockets on opposite sides of the stem 11, and a second part consisting of a second pair of laterally extending cutter supports 41, 43 fixed to a collar 35, the two parts being assembled by placing the collar 35 over the stem 11 so that the second cutter supports 41, 43 enter the pockets to orientate the cutter supports 41, 43 and transmit torques and thrusts. When assembled the upper surfaces 45, 47 of the second cutter supports 41, 43 are co-planar with the upper surfaces 29, 33 of the first cutter supports and a clearance C is left between the vertical surfaces as shown in Fig. 1. A portion of each clearance is enlarged to form a groove 52 machined to receive a shim 53, (Fig. 2), the shims 53 being secured by nuts and bolts 57. The cutter supports 21, 23, 41, 43 carry cutter assemblies 49 (Fig. 1) having roller cutters 51.
Patent GB-967554-A (GB)
Title: Metal graphite compacts
IPC: C22C32/00
Filed: 1960-11-25
Abstract: A sintered metal bonded graphite composition contains 10-70% by volume of aluminium and at least 0.1% by weight of at least one of the metals calcium, magnesium, barium and strontium. The composition may also contain at least one of the metals iron, cobalt, nickel, copper and silver and the calcium and barium may be added as silicides and the magnesium as magnesium ferro silicon. The mixed powders are compacted and sintered at 1800 DEG F. in vacuum.
Patent GB-1218189-A (GB)
Title: Improvements in or relating to flare stack tips
Inventor: PROCTOR ALBERT EDWARD
IPC: F23G7/08
Filed: 1967-10-09
Abstract: 1,218,189. Flare stack burners. A. E. PROCTOR. 8 Oct., 1968 [9 Oct., 1967], No. 46103/67. Heading F4T. The flare tip proper 30 of a flare stack tip assembly is welded on a tube 13, 14, having a flange 11 for securing it to a fixed flare stack, and has below a frusto-conical portion 1a two rings of devices 40, 41, using the Coanda effect for inducing ambient air into the main stream of gas passing through the tip 30, and having pressurized steam or compressed air as the air inducing medium, fed from a pipe 10, a manifold 7 and conduits 42. The devices 40, 41 are held in members 43, 44 pivotable relative to the tip, the longitudinal axes of devices 40 and 41 preferably making angles of 45 and 30 degrees, respectively, to the longitudinal axis of the tip, and a gas diverter 45 is located on support rods 46 coaxially in the tip, so that the gas and ambient air streams meet substantially at right angles before passing through an upper tubular tip portion 1 and emerging from a flue nozzle 50. Three pilot burners 2 are arranged about the nozzle 50.
Patent GB-1356718-A (GB)
Title: Battery with a state of charge warning device
IPC: H01M10/48
Filed: 1972-10-06
Abstract: 1356718 Battery charge indicators DAIMLER-BENZ AG 6 Oct 1972 [9 Oct 1971] 46284/72 Heading H1B- [Also in Division G1] A state of charge warning device in a battery comprises a hydrometer float 8 in a housing 2 which as shown is located outside the battery case 1 and communicates with the battery interior through openings, float 8 co-operating with a contactless control device to initiate a warning signal when it sinks to a level corresponding to a critical electrolyte density. As shown, iron armature core 10 is embedded in shank 9 of float 8, and the critical electrolyte density is indicated by the inductance charge when core 10 penetrates a solenoid coil 6. The coil may form part of an oscillatory circuit (Fig. lb, not shown) whereby a resonance signal initiates an acoustic and/or visual warning signal in an indicating device. Alternatively (Figs. 2a to 2c, not shown) the shank may interrupt a light ray directed on to a light-responsive receiving device. The circuit may include a time-delay element.
Patent GB-1069648-A (GB)
Title: Improvements in or relating to self locking or self tapping screws
Inventor: EVANS EDWIN RAWDEN
IPC: F16B39/30
Filed: 1963-11-22
Abstract: 1,069,648. Self-tapping screws. LOCK THREAD CORPORATION. Nov. 22, 1963, No. 46301/63. Heading B3N. [Also in Division F2] A screw 10 which is self-tapping in a drilled bore or self-locking in a pre-tapped bore has lobes 11 which interfere with the material of the bore wall (43a), Fig. 4 (not shown), whether it is pre-tapped or not, so that the interference is relieved at the gaps, Fig. 5 (not shown), between the lobes. There is thus locking of the member 10 in the bore (43a) and this is enhanced by the curve 34 at the trailing edge of a lobe 11 being steeper than the curve 32 at the leading edge in the direction 30 of tightening the screw 10. The root 35 of the male thread is wider than the crest and tapers towards the screw axis in the direction of load at 6 degrees to the axis, Fig. 2 (not shown). It may taper (35a, 35b) at 10 or 15 degrees. In a large untapped bore (43), Fig. 3 (not shown), the thread swaged by the male member may not reach the male thread root if it is of 6 degrees taper but in a smaller bore (43a) the thread (44) (which may be swaged by the male member or have been produced by a pretapping operation) interferes with the thread root whatever the taper. Although at the gaps between the lobes, there may be space between the male and female threads, Fig. 5 (not shown), there may be interference there also with the root (35) of the male thread, although to a lesser degree than at the lobes. The screw is pointed to provide a starting thread. In a modification, Figs. 6-8 (not shown), there are three lobes 60 with intervening, non-concave relief gaps (62) but the thread root (56) is uniformly spaced from the thread crest (54) so that the thread form is uniform. The end view diameter is the same at any angle. The thread root (56) may have various tapers as before.
Patent GB-1030097-A (GB)
Title: Method of cooling and system therefor
Inventor: NEBGEN WILLIAM HENRY
IPC: F25B9/00
Filed: 1964-11-13
Abstract: 1,030,097. Refrigerating. CHEMICAL CONSTRUCTION CORPORATION. Nov. 13, 1964, No. 46391/64. Heading F4H. A refrigeration system comprises a coil 3 in which liquid refrigerant cools and is partly vaporized by a load 2, a separator 7 in which the refrigerant from coil 3 is separated into the liquid and vapour phases, a condenser 11 for condensing the vapour from separator 7 and a flash cooler 20 in which liquid refrigerant from condenser 11 and separator 7 is partly evaporated, the cooled liquid refrigerant from cooler 20 being forwarded by a pump 24 to coil 3. Refrigerant vapour from cooler 20 is compressed by a compressor 22 and supplied through line 9 to the condenser. The load 2 is an intercooler for a gas flowing between compressor stages 25 and 26.
Patent GB-1428696-A (GB)
Title: Radiation detecting and measuring element
IPC: G01T1/11
Filed: 1973-10-05
Abstract: 1428696 Thermoluminescent material GES FUR STRAHLEN - UND UMWELTFORSCHUNG mbH 5 Oct 1973 [5 Oct 1972] 46612/73 Heading C1M [Also in Division C4] A thermoluminescent measuring element for detecting and measuring ionizing radiation comprises a metaphosphate glass doped with Mn (e.g. from 0À1% to in excess of 1À0% by wt). Ce or Ag may be additional activators. The metaphosphate glass may be of a low effective atomic number. Emission may be in the range of 500 to 750 nm. after heating to above 100‹ C. Tempering at 80‹ C. before evaluation reduces fading.
Patent GB-1488426-A (GB)
Title: Parking brake interlock valve
IPC: B60T13/22
Filed: 1975-11-12
Abstract: 1488426 Change-speed control CATERPILLAR TRACTOR CO 12 Nov 1975 [17 April 1975] 46750/75 Heading F2D In a large vehicle such as an earth mover, provided with a park brake (10, Fig. 1, not shown), applied automatically as by a spring (20), and released by fluid pressure 36 applied to a piston (16) to overcome the spring (20), failure of the brake-release pressure 36 is indicated to the operator by imposing a resistance to movement from neutral of a member 42 in the vehicle transmission control linkage. Failure of such brake-release pressure 36 permits a spring 68 to maintain a cam plunger 64 in the position shown, in which its cam surface 66, through a ball 88 and spring 90, maintains a detent ball 84 in a groove 48 in a sleeve 46, slidably mounted on the transmission control member 42 and maintained in a central position, shown, by springs 58, 60 which resist movement of the control member 42 from neutral. Presence of brake-release pressure 36 shifts the cam plunger 64 to the right, removing pressure from the detent ball 84 to permit normal shift movement. For an emergency move, the operator can override the springs 58, 60.
Patent GB-1493637-A (GB)
Title: Electrostatic powder-coating installations
IPC: B05B14/45
Filed: 1975-11-12
Abstract: 1493637 Electrostatic spray booth GEMA AG APPARATEBAU 12 Nov 1975 [14 Nov 1974 23 July 1975] 46791/75 Heading B2L In an electrostatic spray booth 10 of the type wherein excess powder from a spray gun 17 is removed therefrom through a moving filter strip 23 by suction of a blower 34, the filtered powder is removed from the upper run 22 of the strip outside the booth by a suction nozzle 44, the removed powder then being drawn by suction blower 49 via line 47 through a cyclone separator 48 wherein most of the powder removed from the air stream and passed via sieve 54 to supply container 19. Powder not separated at 48 is recycled to the booth via line 58 and discharge tube 59. Fresh powder is added to the system from container 41 onto filter strip 23 upstream of the suction nozzle 44 and downstream of corona discharge electrode 37. The suction nozzle 44 may be provided with a device illustrated in Figs. 2 and 3 (not shown) for pulsating the air in suction duct 47 so as to prevent powder deposition therein. The suction blower 49 is preferably of the injector type [Fig. 4 (not shown)] and comprises two parts (71), (72) defining an annular gap (76) therebetween through which compressed air is blown into a constriction (82) thereby drawing-in air from line 50.
Patent GB-1093539-A (GB)
Title: Harvesting attachment
IPC: A01D45/02
Filed: 1964-11-19
Abstract: 1,093,539. Harvesters. MASSEY-FERGUSON Ltd. No. 19, 1964 [Dec. 5, 1963], No. 47071/64. Heading A1F. A row crop harvester header attachment 6 adapted to be attached to a conventional combine harvester 2 comprises snapping units 10 the outer two of which are adjustable laterally of the attachment relative to the inner two units, snout and hood panel assemblies 12, 14, and a cross auger 52 and conveyer 22. Drive to the conveyer, auger and snapping units is transmitted from a power source on a combine by way of chain and sprocket mechanism (Fig. 14, not shown). The conveyer 22 (Fig. 7) passes over an idler drum 26 mounted on an arm 30 which is longitudinally adjustable and pivotable about a pivot 40 to vary the height of the conveyer. The attachment may be raised or lowered by means of hydraulic jacks 18, and has a number of parking jacks 20. Snapping units. Each unit comprises a framework, attached by means of brackets 80 (Fig. 6) to a support beam 88 of the main frame of the attachment, two snapping rolls 100 mounted on the framework beneath snapping plates 132, and gathering chains 148. The rolls of the inner snapping units are driven from a shaft 70 via automatically disengageable clutches 122, which disengage if the rolls should encounter an obstruction, chains, shafts 118 and bevelled gears 104, 116. The outer units are also driven by the shafts 118 via connections 120 which can be adjusted to accommodate adjustment of the outer snapping units. The rolls are mounted at their forward ends in bearings 106 (Fig. 10) which are hingedly connected to a plate 110 secured to the framework by bolt 114 and having therein an elongated slot 112 so as to allow lateral adjustment of the rolls to receive various crops. The gathering chains are engaged by sprockets 134, driven by a shaft 136 through automatically disengageable clutches, and by idler sprockets 142 which are mounted on longitudinally adjustable carriages 144. The shafts 158 through which drive is transmitted to the sprockets 134 are interconnected by connections 160 similar to connections 120. Hood and snout panels. The crop rows are guided into the snapping units by hood and snout panel assemblies 12, 14. Of the assemblies 14 shown in Fig. 1 two comprise snout panels 174 pivotally connected at 180 for telescoping when the snapping units are adjusted laterally, and similarly the hood panels 188 are adapted to be telescoped. The assemblies are pivotally connected to the framework of the units at 178, 198, and they are interconnected by a rod 200 having thereon an adjustable unit 204, The assemblies 12 are pivotally connected to the framework of the outer units and are movable laterally when those units are moved.
Patent GB-1207744-A (GB)
Title: Controlled rectifier protection circuit
Inventor: MELLING WILLIAM GORDON
IPC: H02H7/127
Filed: 1968-10-07
Abstract: 1,207,744. Protective arrangements. STANDARD TELEPHONES & CABLES Ltd. 7 Oct., 1968, No. 47388/68. Heading H2K. A protective arrangement for a controlled rectifier S.C.R. 1 to which pulses are applied for "chopping" a D.C, supply 1 to a load L, e.g. as in inverters, converters and traction motor control, comprises a circuit responsive both to a firing pulse applied to the rectifier and to the change in the load current resulting from that pulse. A contactor 2, 3 interrupts the supply to the rectifier when a firing pulse does not result in a change in the load current. As shown, a secondary winding S3 on a pulse transformer produces a voltage across a Zener diode Zl when a firing pulse is applied to the rectifier S.C.R. 1 and a current transformer CT produces a voltage pulse across a Zener diode Z2 as the load current commences to flow. Under these conditions there is no voltage difference between the junction of the diodes Z1, Z2 and the junction of resistors R3, R4 and a controlled rectifier S.C.R. 4 is not fired. Should there be no pulse from the current transformer CT due to the rectifier S.C.R. 1 failing to turn on or having failed to turn off at the end of the previous firing cycle, then the voltage pulse from the secondary winding S3 turns on the rectifier S.C.R. 4 to short circuit the contactor coil 3 and open the contactor contacts 2. A transistor amplifier may be interposed between the junction of resistors R3, R4 and the gate electrode of the rectifier S.C.R. 4.
Patent GB-1336343-A (GB)
Title: Expectorate container
IPC: A61J19/00
Filed: 1971-10-12
Abstract: 1336343 Expectorate container NUNC A S 12 Oct 1971 [14 Oct 1970] 47499/71 Heading A4N An expectorate container comprises a generally flat bottom part 1 provided with a side wall, a lid 3 including a downwardly extending collar 4 having a helical groove 5 on the inside thereof which co-operates with a helical projection 2 at the upper edge of the vertically extending sides of the bottom part so that the lid may be screwed on and off and an insert 6 mounted in or on the underside of the lid preferably by means of an annular pin 7 extending from the underneath of the lid and fitting into a hole 8 on the top surface of the insert which thus renders the lid rotatable relative to the insert. The projecting pin may extend from the top side of the insert and be inserted in a corresponding hole in the underside of the lid in an alternative embodiment. The insert itself comprises a flange 9 forming a seal between the upper edge of the sides of the bottom part and said lid when the container is closed, and an inclined surface 11 abutting an annular shoulder 12 of the bottom part of the container which provides a seal between the insert and bottom part. Any expectorate sample, which during transportation has been transferred to the underside of the insert, can be removed from the insert by scraping the lid and insert across the upper edge of the vertically extending sides of the bottom part, the removal thus effected without interference from the downwardly extending collar of said lid. The lid and bottom part of the container are preferably made of plastics material e. g. low density polyethylene, or polystyrene, and the insert, which is preferably resilient, being made from high density polyethylene.
Patent GB-1504548-A (GB)
Title: Method and apparatus for depositing thin layers of insulating or slightly conductive materials by reactive sputtering in a high-frequency inductive plasma
IPC: H01B3/00
Filed: 1975-11-19
Abstract: 1504548 Reactive cathode sputtering EUROPEAN ATOMIC ENERGY'COMMUNITY 19 Nov 1975 [22 Nov 1974] 47645/75 Heading C7F In a reactive sputtering process for depositing oxides, carbides, nitrides and sulphides e.g. oxides of Al, Ti, W, Mo and TaN, a HF coil of the metal to be reactively sputtered is used to generate a HF plasma in an inert gas and the sputtered particles are reacted with a reactive gas e.g. 02, N2 or CO which is isolated from the HF coil and inert gas. As shown in Fig. 1 vacuum vessel 1 is divided into two chambers by partition 7 with an aperture in line with substrate 4 in chamber 9 and HF coil 3 in chamber 8. Inert gas is fed into chamber 8 via inlet 5 and reactive gas to chamber 9 via inlet 6, each chamber being separately connected to the vacuum pump by ducts 2. The partition 7 may be a double wall enclosing the HF coil with substrates on either side, or a cylindrical wall. Different deposits can be formed by varying the reactive gas in the chamber 9 so that layers of different compounds may be formed on a substrate.
Patent GB-1201275-A (GB)
Title: Protective coatings on glass
IPC: C03C17/32
Filed: 1967-10-20
Abstract: 1,201,275. Coated glass sheets. LIBBEYOWENS-FORD CO. 20 Oct., 1967 [2 Nov., 1966], No. 47801/67. Heading B2K. Protective, transparent coatings on glass sheets are produced by applying to the sheets while at an elevated temperature an aqueous solution of a resinous material that requires a chemical aid to solubilize the same in water. The solution may be a dilute alkaline aqueous solution of a cross-linked ethylene-maleic acid anhydride copolymer having a viscosity in a 1 % solution of 12,000-160,000 c.p. at pH 9 and consisting of units of formula: The solution may also comprise a compatible lubricant, e.g. a polyethylene glycol. In an embodiment the solution is applied by reciprocating atomizers on to a glass ribbon emerging from an annealing lehr and at 150-250F prior to passing to a capping section where it is cut to size.
Patent GB-1271200-A (GB)
Title: Nitrile recovery process
IPC: B01D3/40
Filed: 1970-10-09
Abstract: 1,271,200. Recovery of acrylonitrile obtained by ammoxidation. MONSANTO CO. 9 Oct., 1970 [10 Oct., 1969 (2)], No. 48093/70. Heading C2C. Acrylonitrile produced by the ammoxidation of propylene is recovered by (a) introducing the hot off-gas from the ammoxidation reactor into a water-cooling zone, (b) passing the bottom fraction from this cooling zone to an intermediate point in a first distillation zone for the separation of water from light organics while (c) passing the off-gas from the cooling zone to an intermediate point in a gas-absorption zone, into which an absorbing solvent is introduced at a point above that at which the off gas enters, (d) passing the bottom fraction from the absorption zone to a distillation train in which the absorption solvent is separated from the crude acrylonitrile, (e) passing the crude acrylonitrile to a second distillation zone from which acrylonitrile is obtained at a point above the feed point, and (f) passing at least a part of the bottom stream from the second distillation zone to the gasabsorption zone, it being introduced at a level intermediate between the points of introduction of the cooling-zone off-gas and the absorption solvent. At least part of the bottom stream from the second distillation zone may be fed to an intermediate point in the first distillation zone and at least part of the bottom stream in - troduced into the gas absorption zone constitutes at least part of the overhead fraction from the first distillation zone.
Patent GB-991490-A (GB)
Title: Improvements in or relating to polymerisation catalysts
IPC: C07C2/24
Filed: 1962-12-20
Abstract: Olefines having 3 or more carbon atoms are dimerised in the presence of a catalyst comprising Na metal on an anhydrous K compound which has been prepared by mixing with the anhydrous K compound an involatile Na compound which decomposes on heating to yield metallic Na and thereafter heating the mixture at or above the required decomposition temperature.  If desired the catalyst may be prepared in situ, i.e. olefines may be passed over K2CO3 and NaN3 or NaH at such a temperature as to decompose the latter.  Mono-olefins are dimerised at 100-400 DEG  C. and dienes at - 10 DEG  to 50 DEG  C. at up to 4,000 p.s.i.g. and 0.5-10 v/v/hr.  The process may be effected batchwise or continuously.  Specified feedstocks are propylene, isobutylene, butadiene, and isophene or mixtures of such compounds, or mixtures with ethylene.  Reference is made to (1) dimerisation of propylene to 4-methyl pentene-1; (2) copolymerization of isobutene and ethylene to 2-methyl pentenes-1 and -2; (3) copolymerization of n-butenes and ethylene to 3 - methylpentenes - 1 and - 2 and n-hexenes. An example gives the following per cent composition of reaction product from propylene at 1,000 p.s.i.g. and 140 DEG  C.: propylene 1.0%; 3- and 4-methylpentene-1 76.5%; cis and trans 4 - methylpentene - 2 10.8%; hexene - 1,2 - methylpentene - 1 and transhexene-3 8.2%; cis hexane-3 and trans hexene-2 2.0%; 2-methylpentene-2 and cis hexene-2 1.3%; other material 0.2%. Specification 933,253 is referred to.ALSO:Catalysts useful in dimerizing and trimerizing lower olefines are made by mixing with an anhydrous potassium compound an involatile compound of sodium which decomposes on heating to yield metallic sodium, and subsequently heating the mixture to produce metallic sodium.  K2CO3 is preferred, but also mentioned are KOH, K2SiO3, K2SO4 and halides.  Sodium azide and hydride are specified decomposable Na compounds.  Specification 933,253 is referred to.
Patent GB-1026834-A (GB)
Title: Improvements in web drying apparatus including arrangements for distributing gaseous drying media adjacent to travelling webs
Inventor: NIEMINEN TOIVO AARRE
IPC: D21F1/32
Filed: 1963-12-06
Abstract: 1,026,834. Drying apparatus. VALMET OY. Dec. 6, 1963, No. 48214/63. Heading F4G. A cylinder drying apparatus for a web 3 comprises heated gas distributing pipes 1 mounted transversely to the direction of travel of the web in the pockets 2 formed by the web. The pipe is open at both funnel-like ends 7 for the axial introduction of a compressed primary gas supply through nozzles 9 carried on supply conduits, which gas causes an injector effect to create a flow of secondary drying gas, viz. atmospheric air, from the ends 7 into the pipe for distribution through discharge holes 4. The funnel-like ends 7 preferably have curving walls and lead to constrictions 6 acting as diffusers.