baber/WOPTO huggingface dataset:
Patent GB-848886-A (GB)
Title: Improvements in or relating to the manufacture of dispenser cathodes
IPC: H01J9/04
Filed: 1957-12-31
Abstract: 848,886. Cathode materials and processing. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 31, 1957 [Jan. 3, 1957], No. 40443/57. Class 39(1). A method of manufacturing a dispenser cathode includes the steps of forming a porous body of high-melting-point refractory metal, impregnating the porous body with an electronemissive alkaline-earth metal compound, and performing a cutting operation on the impregnated body to produce one or more cathodes. Impregnation with a material such as copper, silver, gold or an alkali halide which serves solely to make the porous body machinable and/or to keep the pores open during the machining operation, and its subsequent removal by volatilization or dissolution are thus avoided. In an example, a tungsten rod about 40 mm. long and 10 mm. square is obtained by sintering compressed powdered tungsten to compactness. The rod is impregnated with barium aluminate of the composition 5 BaO 2Al 2 O 3  obtained by melting together barium carbonate and aluminium oxide and pulverizing the product. Impregnation is effected at a temperature of 1750‹C. in a neutral or reducing atmosphere such as hydrogen or nitrogen or a mixture thereof for a period of between ¢ min. and 30 mins. Alternative impregnating agents are barium silicate, barium borate, barium aluminate to which calcium oxide or strontium oxide is added as described in Specification 795,566, a mixture of barium carbonate, silicon dioxide and calcium carbonate in a molar ratio of 3 : 1 : 0À5, and pure barium oxide or barium oxide together with strontium oxide or calcium oxide as described in Specification 817,066. The porous metal body may be an alloy of molybdenum and tantalum, in which case impregnation is effected in an atmosphere of rare gas such as helium. Vacuum impregnation can be used for very small rods. Specification 848,885 also is referred to.
Patent GB-1160582-A (GB)
Title: Circular Weaving Looms
IPC: D03D37/00
Filed: 1966-09-12
Abstract: 1,160,582. Circular dummy shuttle loom. PELTZER & FILS S.A. 12 Sept., 1966 [17 Sept., 1965], No. 40572/66. Heading D1E. The invention relates to a loom for weaving three fabrics disposed in a circle, the weft being inserted by dummy shuttles loaded with weft at gaps between the fabrics. As described in Specification 116058 a gripper swings radially inwards of the loom, grips the end of a selected weft thread, and swings outwards to hold the weft across the path of a dummy shuttle. The gripper is carried by an arm 60, which supports a guide tube 61 having rectangular holes 63, 64 at its ends. A channel section bar 65 slides in the holes, and another channel section bar 68 slides in the bar 65. Gripper jaws 66, 67 are integral with the bars 65, 68 respectively. Both jaws are moved to open and close the gripper by oppositelymoving bellcrank levers 76, 77 engaging apertures in the bars 65, 68, the bellcranks being rocked by a rod 82 operated by a solenoid. Specifications 1160581, 1160583 and 1160585 are also referred to.
Patent GB-1505916-A (GB)
Title: Power supply for electronic apparatus
IPC: H02M3/337
Filed: 1975-10-06
Abstract: 1505916 Converting ING C OLIVETTI & C SpA 6 Oct 1975 [29 Oct 1974] 40831/75 Heading H2F [Also in Division G3] A power supply circuit comprises a rectifier 2, a voltage stabilizing circuit 4 including capacitors 26, 27 charged via an inductor 22 and a diode 25, an inverter 5, a circuit 12 for controlling the intervals during which the inductor charges and discharges, a feedback circuit 11 responsive to at least one D.C. output voltage from the supply circuit to vary the ratio of the charge and discharge intervals to maintain the output voltage at a predetermined value, and a saturable reactor 6 responsive to overloading of the power supply to increase the inverter output frequency thereby limiting the dissipation of power in the supply circuit. The reactor is connected to an output transformer 7 which supplies rectifier circuits 8, 9, 10 to provide D.C. voltages at terminals 30, 65, 66, 87, 88 of + 5 V, +20 V, +12 V, -20 V, -12 V respectively. Awinding 33 of the transformer 7 supplies a feedback voltage to a winding 36 of a saturable transformer 35, the secondary windings 37, 38 of which control the conduction of transistors 42, 43 in the inverter. A winding 46 of the transformer 35 is connected to a winding 89 of the transformer 7 and corrects any difference in the amplitude and duration of successive halfwaves of the inverter output. In the event of an overload the saturable reactor 6 ceases to be in its low impedance condition, the voltage drop in the winding 39 causing a voltage drop in the output voltage at the terminal 30 which supplies the saturation current for the reactor via a control winding 28. All the output voltages quickly reduce to zero, at which they remain until the overload is removed. During overload the power output of the inverter is also reduced by means of two transformers 47, 48 which increase the frequency of oscillation of the inverter under these conditions. The circuit 11 (see Division G3) controls the periods of conduction of a transistor 24 in series with the inductor 22 to regulate the output voltages of the supply.
Patent GB-1370884-A (GB)
Title: Liquid metal current transfer in dynamoelectric machines
IPC: H02K31/04
Filed: 1971-11-25
Abstract: 1370884 Current collection in dynamo-electric machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 25 Nov 1971 [25 Aug 1970] 40891/70 Heading H2A A dynamo-electric machine hasahollowrotorin which are disposed stationary current collecting members 18, 19 co-operating with current collecting surfaces of the rotor, the rotor containing a quantity of mercury such that when the rotor rotates the mercury bridges the gaps between the current collecting members and surfaces. The stator of the homopolar machine shown comprises a pair of superconducting coils 2, 3 and an internal magnetic core 11 supported by concentric, insulated bus-bars 5, 6. The rotor structure comprises a support cylinder 9 which surrounds the internal core 11 and which is made of magnetic material (except for portions 12 beneath the coils 2, 3). closed at both ends by non-magnetic discs 7 and mounted in bearings 1.0. Within the support cylinder are arranged a cylindrical rotor conductor 4 and magnetic (14) and non-magnetic (15) spacing rings, the rings 15 being separated from the ends of the rotor conductor 4 by a small gap to form annular grooves 13 into which project stationary conductive annular ribs 18, 19 connected to respective busbars 5, 6. Mercury contained within the rotor spreads into the grooves when the rotor rotates. Surfaces within the rotor not included in the current collection system are insulated by epoxy resin or sprayed ceramic.
Patent GB-1111889-A (GB)
Title: Improvements in or relating to temperature compensated amplifiers
IPC: H04B3/04
Filed: 1965-09-27
Abstract: 1,111,889. Transistor amplifying circuits; repeater circuits. SIEMENS A.G. 27 Sept., 1965 [28 Sept., 1964], No. 40953/65. Headings H3T and H4R. The gain of an amplifier is adjusted by means of a magnetically-controllable resistor in a negative feedback path which also provides thermal compensation. Amplifier V provides compensation for a preceding cable, its response being determined by a negative feedback path comprising fixed networks VPI, VPII and adjustable, magnetically controllable resistor RF which also provides thermal compensation for changes in the cable attenuation with temperature variation. Resistor R F , which may comprise an N-doped semi-conductor, e.g. an orientated eutectic mixture of indium and nickel antimonides, is in series with a reactance network W which is so selected as to provide the requisite changes in frequency response as gain and/or temperature are varied.
Patent GB-949448-A (GB)
Title: Improvements in or relating to the composite casting of metal
IPC: B22D7/02
Filed: 1962-10-30
Abstract: 949,448. Casting composite articles. KLOCKNER-WERKE A.G. Oct. 30, 1962 [Oct. 31, 1961], No. 40995/62. Heading B3F. Partitions 3, 3<SP>1</SP>, 3<SP>11</SP> in a mould for composite casting are supported by means such as U- section metal 2, 2<SP>1</SP> between the edges of the partitions and the mould wall 1. Resilient members such as wire gauze 4, 4<SP>1</SP>, compensate for differences in the dimensions of the partitions.
Patent GB-992195-A (GB)
Title: Method for dyeing acrylonitrile polymer fibers
IPC: D06P3/70
Filed: 1963-10-18
Abstract: A process for dyeing acrylonitrile polymer filaments comprises reducing the water content of freshly spun and washed acrylonitrile polymer gel filaments to between 100 and 200 weight per cent on the dry weight of the filament and thereafter immersing the gel filaments in a dyebath.  After immersion in the dyebath the excess due solution may be removed, e.g. by passing through a pair of nip rolls, and subsequently irreversibly dried. The residence time in the dyebath may be 1/20 to 1/10 second and the dyebath may be an aqueous solution or dispersion of a vat, sulphur, direct, metallized, basic, acid, azoic, acetate, reactive or ingrain dyestuff.  The acrylonitrile polymer which may be spun from known solutions, e.g. an aqueous zinc chloride solution, may contain at least 80% by weight of polymerized acrylonitrile, particularly 100% and may contain any one of a number of specified copolymers.  The production of the water content of the freshly spun aquagel fibres may be accomplished by passing them through a pair of nip rollers or alternatively by forcing the tow of filaments through a narrow opening or causing the tow to bend over a sharp angle under tension.  The gel filaments may be stretched or part-stretched before the reduction of water content and the stretching completed before irreversibly drying.  The dye may be fixed by steaming the dyed gel filaments prior to the irreversible drying.  Treatments in a second dyebath, finishing or lubricating baths, heat treating or crimping may be introduced at any stage. Examples of dyeing acrylonitrile homopolymer are given.
Patent GB-1109398-A (GB)
Title: Yarn winding apparatus
IPC: B65H54/52
Filed: 1965-09-29
Abstract: 1,109,398. Winding apparatus. CELANESE CORPORATION. 29 Sept., 1965 [1 Oct., 1964], No. 41318/65. Heading D1J. In this yarn winding apparatus the wire of the package is fixed and as the package increases in diameter a carrier carrying the following components is displaced:-(a) a drive roll engaging the surface of the package, (b) a traverse guide and traverse mechanism; the traverse guide being arranged to direct yarn onto the drive roll and the latter to transfer the yarn onto the package. In the particular embodiments the carrier is vertically displaceable by fluid pressure and where the drive roll is above the package the fluid pressure is such as to counterbalance partly the weight of the carrier, whereas where the drive roll is below the package the fluid pressure is such as to provide more force than is needed to counterbalance the weight of the carrier. Mounted on the carrier are individual motors for the operation of the traverse guide and drive roll. Varying pressure between drive roll and package. In Fig. 4, as the package 25 increases in diameter the carrier 49, on which is mounted the drive roll 31, traverse guide 33 and traverse drive 51, is forced downwardly against a fluid pressure between the upper end of a movable cylinder 65 and a fixed piston 67. The cylinder 65 is coupled to the carrier 49 and carries a pivotally mounted lever arm 85 resting on a pin 89. With the cylinder 65 and carrier 49 in their uppermost setting the pin 89 supports the lever arm 85 at its midpoint and the weight of the lever arm 85 does not weigh on the cylinder 65. On the carrier 49 descends the lever arm 85 moves to settings such as that indicated in broken lines and then weight is added to the cylinder 65 to increasingly decrease the upward force acting on the drive roll 31. Fig. 8 (not shown) also uses a pivoted lever arm 148 to ensure that for a drive roll 32 pressing downwardly on a package 26, the pressure between package and drive roll will gradually decrease as the package increases in diameter.
Patent GB-1280141-A (GB)
Title: Improvements in or relating to fusion welding
Inventor: ROBERTS DANIEL FRANK THOMAS
IPC: B23K9/035
Filed: 1968-08-29
Abstract: 1280141 Welding by fusion FOSTER WHEELER JOHN BROWN BOILERS Ltd 29 Aug 1969 [29 Aug 1968] 41332/68 Heading B3R In arc butt welding of two tubes or of a tube to a tubular member formed on or connected to a header or tube plate, the arc is directed from internally or, as shown, externally of the tubes, and a backing ring is fitted with clearance (1/16 inch max.) respectively around or within the joint and is fused and incorporated in the weld, the act of fusing causing bending of the ring towards the arc at the point of fusion so that the ring progressively fits closely against the joint as welding proceeds. The backing ring may be a length of wire of suitable composition bent fairly roughly around or within the joint, or the ring may be of fairly accurate circular shape and of diameter slightly larger or less than the corresponding joint diameter. Preferably the tube ends have a weld preparation. As shown, the tube ends have annular recesses 16 loosely accommodating a bent around wire 18. The backing ring may, alternatively, be of oval, square or rectangular cross-section with the recesses 16 shaped correspondingly, or may be of waisted or shouldered cross-section.
Patent GB-980436-A (GB)
Title: The acid salt composed of acetyl glutamic acid and n,n-dimethylaminoethanol-1 and preparation of same
IPC: C07C233/46
Filed: 1961-11-20
Abstract: The invention comprises 2-dimethylaminoethanol acetylglutamate, its preparation from the parent acid (D, L or DL) and base, and pharmaceutical preparations containing it.  The compound has a stimulating action on the cerebral cortex and a sedative action on the control centres of the central nervous system, and may be administered orally in the form of pharmaceutical preparations containing it together with a liquid carrier.
Patent GB-930775-A (GB)
Title: Method and apparatus for treating and drawing synthetic filament yarns
IPC: D02J1/22
Filed: 1961-11-21
Abstract: Apparatus for stretching yarns of synthetic filaments, especially of nylon, comprises a driven feed roll, a driven draw roll and a porous member supplied interiorly with steam and having frictional engagement with the yarn in the draw zone.  The feed roll assembly suitably includes a pair of engaging rolls 6, 7, one of which is driven, and the draw roll assembly may include an inclined spacer roll 16 near the draw roll 8.  The porous member may comprise a hollow porous tube 9, fitted with end caps 11, one of which is fitted with a steam inlet pipe 14 and condensate removal tube 15.  Yarn is supplied from bobbin 2 around snubbing bar 3 and through guide 4 to the forwarding rolls 6, 7, thence around the porous snubbing pin 9 to which steam is supplied via 14, thus simultaneously localizing the stretch point and steam-treating the yarn, which then passes around draw roll 8 and spacer roll 16 to the ring twister 17. <FORM:0930775/IV(a)/1> <FORM:0930775/IV(a)/2>
Patent GB-1224062-A (GB)
Title: Grain, root and hay dryer for on-the-floor bulk drying
Inventor: ELLIS JOHN WILLIAM GEORGE
IPC: F26B21/00
Filed: 1968-08-30
Abstract: 1,224,062. Crop drying. J. W. G. ELLIS. 7 Oct., 1969 [30 Aug., 1968], No. 41697/68. Heading F4G. Air is fed to crops on a drying floor by an overhead duct communicating at intervals with vertical ducts extending into the crop. The overhead duct may be made of tubular sailcloth, canvas or plastics with similar branch tubes connecting with the vertical ducts which may be of tubular steel, aluminium or plastics. The bottoms of the vertical ducts communicate with known types of floor ducting.
Patent GB-1391629-A (GB)
Title: Suspension device for a false ceiling
IPC: E04B9/00
Filed: 1972-05-19
Abstract: 1391629 Hanger arrangement for suspended ceilings STRAMAX AG 19 May 1972 [22 May 1971] 41698/74 Divided out of 1391628 Heading E1W Suspended ceiling panels 11 are supported from heating pipes 3 by means of T-shaped brackets, the stem 14 of which is formed so as to hook over the pipe while the flanges 13 of the head are engageable in edge grooves in the panels 11. The pipes 3 are supported in turn by a member 8 adjustably secured to a fixing strip 10. The flanges of each bracket may support a corner of each of four adjacent ceiling panels. The member 8 may be formed of sheet material with a flange 9 bent out at right angles. The strip 10 may be secured by a nut and bolt through an elongate slot to the flange 9 to provide vertical adjustment.
Patent GB-1127598-A (GB)
Title: Hollow tubular structures
IPC: B29C53/00
Filed: 1965-10-25
Abstract: 1,127,598. Non-metallic tubes; pipe connections. KOPPERS CO. Inc. 25 Oct., 1965 [3 Nov., 1964], No. 41722/67. Divided out of 1,127,597. Headings F2G and F2P. [Also in Division B8] A method of making a tubular article comprises forming a fibre-reinforced resin article comprising a multiple turn coil of strip material having lengthwise corrugations, deflecting the turns of the coil into helical relation with respect to each other with the edge corrugations of adjacent edges interengaged, and adhesively interconnecting the edge portions of the turns. For connecting pipes to the wall of the article clamping pieces C having mating surfaces conforming with the corrugations form a sleeve to which a screwed nipple N is fastened.
Patent GB-962422-A (GB)
Title: Entranceway apparatus and closure means for elevators
Inventor: TUCKER BENJAMIN WHITEHEAD
IPC: B66B13/12
Filed: 1962-11-05
Abstract: 962,422. Door operating appliances; remotely controlled fastenings. OTIS ELEVATOR CO. Nov. 5, 1962, No. 41760/62. Headings E2A and E2M. An elevator system having horizontally slidable car and hoistway doors, coupling mechanism located above the door openings and latching mechanism for each hoistway door also located above the door opening and released by the coupling mechanism, is characterized by the feature that only the co-operating parts of the coupling mechanism extend into the space between the planes containing the confronting surfaces of the car and hoistway doors. The car carries a power actuated door operator 30 (Fig. 7) connected to the car door hanger 32a by a linkage 29 pivoted at 34a to a plate 31 secured to the hanger and extended to form one of a pair of links 33, 34 on which a U-shaped vane 35 constituting one part of the coupling means is supported. Secured to the hanger 32 of the hoistway door is a base plate 92 on which is pivoted at 74a a latch member 49 adapted to engage with a portion 48a of a casing 45 attached to the header. A roller 72 and a lever 85 are also pivoted at 72a, and two further rollers 73, 74 are pivotally carried by the latch member 49 and lever 85 respectively. When the car arrives at a landing and the door operator 30 is energized the vane 35, which is embracing the rollers, begins to move (to the left in Fig. 7 and to the right in Figs. 3 and 5) and first engages the roller 73 to raise the latch member 49 clear of the portion 48a of the casing 45. When the latch member has turned sufficiently about pivot 72a to release the hoistway door the vane engages the roller 72 and the hoistway door begins to open. Immediately an arm 84 of lever 85 is moved away from a fixed stop roller 88 and lever 85 rotates under the influence of a spring 90 until its roller 74 reaches the position shown in Fig. 5 in engagement with the other flange of the vane. When the doors subsequently approach the closed position the arm 84 abuts the stop roller 88 and is thereby pivoted to bring the roller 74 out of engagement with the vane, but complete closure of the hoistway door is ensured by the provision of a weight 100 (Fig. 10, not shown) suspended inside the door from a cord which passes over a pulley in the door and is secured to the casing 45. The latch member 49 carries a contact 83 which bridges contacts 81, 82 when the hoistway door is closed and latched to complete the elevator operating circuits. The pivotal connection between the vane 35 and the car door hanger and its attachment to the operating linkage 29 causes the relative positions of the car and hoistway doors to vary slightly during opening and closing movement, thereby facilitating the operation of electronic detector means if such are provided. Alternatively the vane may be rigidly fixed to the hanger.
Patent GB-1438883-A (GB)
Title: Engine cooling and noise abatement system
IPC: B60K11/08
Filed: 1974-09-26
Abstract: 1438883 Motor vehicle cooling systems GENERAL MOTORS CORP 26 Sept 1974 [11 Oct 1973] 41928/74 Heading B7H [Also in Division F1] A vehicle engine 22 is cooled by engine driven squirrel-cage type fans 24, 26 which extract from a chamber 46 enclosing the engine, air which has entered the chamber through an inlet provided with louvers 16, the air being drawn through a radiator 20 and around the engine 22 prior to its extraction from the chamber. The inner surface of the chamber walls may be coated with a sound insulating layer 48.
Patent GB-1421643-A (GB)
Title: Tractor
IPC: B62D11/18
Filed: 1973-09-06
Abstract: 1421643 Controlling motor vehicles KANZAKI KOKYUKOKI MFG CO Ltd 6 Sept 1973 [26 Oct 1972 23 May 1973] 41945/73 Heading B7H A motor vehicle power transmission especially for a tractor is controlled by a single manoeuvring lever 24 which controls the supply of pressure fluid to fluid-actuated clutches 47, 48, 49 and 50, 51, 52 which connect lay shafts 45 and 46 to a drive shaft 44. The drive shaft 44 is driven through change speed gearing and a clutch 37 by an engine 33. The lay shafts 45 and 46 carry bevel gears 53, 54 meshing bevel gears 57, 58 which drive shafts 61, 62 through speed reduction gears 59, 63 and 60, 64 respectively. Shafts 55, 56, carrying the bevel gears are provided with inboard brakes 73, 74 actuated by pedals 158, 169 through a linkage which stops the drive to the wheel(s) being braked. First forward gears 77, 78, second gears reverse 79, 80 and third forward gears 81, 82 are provided on the lay shafts 45 and 46 respectively. The gear 77 is in mesh with a gear 75 on the drive shaft 44 and gear 78, while reverse gear 80 is also in mesh with the gear 75 and reverse gear 79. Similarly gear 81 is in mesh with gear 82, the gear 81 being driven through a gear 83 meshing a gear 76 on shaft 44. Clutches 47, 50 connect gears 77 and 78 to the lay shafts 45, 46 to drive the lay shafts in opposite directions. Left and right wheels 21, 22 are driven at low speed through these gears 77 and 78 and high speed through gears 81 and 82 upon engagement of the appropriate clutches. The clutches 47 ... 52 are actuated through sliding spool valves, Fig. 8, controlled by the lever 24 which actuates a vertical shaft 138 secured to forks 140, 141 which operate spools 95, 96 in forward, reverse directions or opposite directions. The lever 24 is movable in a lever guide 149, Fig. 15, having grooves 150 and 151 to provide for neutral N, first forward F1, second forward F2, reverse B, left spin turn LS and right spin turn positions RS. The spin turns are achieved by driving the wheels on one side in the forward direction and those on the opposite side in a reverse direction or by braking the wheels on one side and driving the wheels on the other side. In another embodiment, the valves are controlled by a lever (205) Fig. 21 (not shown) which is slidable and rotatable in a lever guide (215) Fig. 23 (not shown).