baber/WOPTO huggingface dataset:
Patent GB-1335791-A (GB)
Title: Multi-layered blow-moulded bottles
IPC: B29C49/22
Filed: 1972-03-30
Abstract: 1335791 Blow-moulding multilayered bottles MITSUI PETROCHEMICAL INDUSTRIES Ltd 30 March 1972 [3 April 1971 12 Nov 1971 29 Feb 1972] 15114/72 Heading B5A [Also in Division B8] A blow-moulded bottle comprises at least one polyamide layer and at least one layer of a polyolefine to which has been grafted an ethylenically unsaturated carboxylic acid or an ester, amide, imide, or metal salt thereof. Maleic anhydride or acrylic acid are preferred graft monomers, and, in addition, styrene may be grafted to the polyolefin. The materials for the layers are extruded through concentric orifices so as to form concentric tubes which are bonded together and then blown. Preferably the two layers are coalesced within the die.
Patent GB-1006291-A (GB)
Title: Catalytic conversion of hydrocarbons
IPC: C10G47/12
Filed: 1962-04-18
Abstract: Hydrocarbons are converted to lower boiling hydrocarbons in the presence of hydrogen with a catalyst comprising (1) a metallic hydrogenation component, e.g. Co, Ni, Pt or Dt; (2) a solid acidic cracking component; and (3) As, Sb or Bi.  Typical conditions are heating a distillate B.pt. 300-850 DEG  F., in the presence of hydrogen at a temperature of 500-700 DEG  F., and pressure 200-2000 p.s.i.g. L.H.S.V. 0.1-10 v/v/hour. Additionally the catalyst may contain a halogen e.g. fluorine. Hydrogen to feedstock ratio is 1000 to 10,000 S.C.F./B.  Details are disclosed of lowering the nitrogen contact of the feedstock before contact with the catalyst.ALSO:A hydrocarbon conversion catalyst comprises a Group VIII metal, one of Bi, As or Sb, and a halide supported on a solid acidic cracking component, the proportion of Bi, As or Sb to Group VIII metal being 0,01-2 gm. atoms per gm. atom.  Preferred Group VIII metals are Ni, Co, Pt and Pd.  The preferred halide is fluorine.  Specified acid cracking components are SiO2-Al2O3 (natural and synthetic), SiO2-MgO, SiO2-Al2O3-ZrO2, fluorided-Al2O3, BrO3-Al2O3, and alumina treated with phosphotungstic, phosphovanadic, silicotungstic or silicomolybdovanadic acids.  Examples are given. The catalyst support may have a surface area of 100-500 sq.m./gm.
Patent GB-217929-A (GB)
Title: Improvements in and relating to die casting machines
IPC: B22D17/06
Filed: 1924-06-23
Abstract: 217,929. Fertigguss-und Metallwerk- Akt.-Ges., (Assignees of Fertigguss Ges.). June 22, 1923, [Convention date]. Casting-machines; metal-pouring. - A diecasting machine is provided with a rotatable reservoir for receiving, in one position, metal from a melting-pot and in another forcing metal into the mould. The reservoir b is of U-shape and has a long leg connected to a source z of gas under pressure. It is rotated, about the long leg, by a rack n, which may be moved by a hand wheel connected to a pinion l or by the mould s. The rack acts through a pinion o and slip clutch p to bring the nozzle c against a stop and in line with an opening f in the pot a which is normally closed by a valve h. Further movement of the rack causes a wedge 7 thereon to lift the reservoir and press the nozzle against the pot thereby opening the valve so that the reservoir is filled. The reverse movement of the rack brings the sozzle into the position shown in broken lines where it is held by a stop and abutment 9. The mould is then closed and filled by turning on he compressed gas. In a modification, Fig. 4, the axes of the openings in the mould nozzle and pot are horizontal and the wedge 7 and rack n are separately connected to the mould half 20 which operates them. In another modification the long leg of the reservoir is arranged within the melting-pot to keep it hot or other means for heating the reservoir may be employed.
Patent GB-1375864-A (GB)
IPC: B22D7/10
Filed: 1971-05-17
Abstract: 1375864 Hot tops for ingot moulds FOSECO TRADING AG 29 March 1972 [17 May 1971] 15190/71 Heading B3F [Also in Division C3] A hot top for an ingot mould or head box comprises a body consisting of carbon fibres and a binder. The body preferably comprises 80 to 98% by weight carbon fibres and 2 to 20% by weight bihder. The composition may be firstly shaped, cured and then located in an ingot mould or head box. Alternatively a composition comprising a carbon fibre precursor and binder may be moulded in situ in an ingot mould or head box and carbonized in situ using an inert atmosphere.
Patent GB-442707-A (GB)
Title: Improvements in or relating to train control systems
IPC: B61L3/22
Filed: 1935-05-24
Abstract: 442,707. Railway signalling systems. LOWELL-WINTSCH AUTOMATIC TRAIN CONTROL, Inc., 757, Marietta Avenue, Lancaster, Pennsylvania, U.S.A.-(Assignees of Wintsch, M. T.) May 24, 1935, No. 15232. Convention date, Oct. 13, 1934. [Class 105] A cab signal is interruptedly activated when ahead traffic conditions cause interrupted rail current to be applied in the section. Sustained or zero rail current gives other cab signals. This signalling rail current provided by a generator 2 and of a frequency 100 is superposed on the track circuit current of frequency 25 supplied by transformer 10B to the section B. If the ahead section A is occupied then its track relay 9B drops and a back contact 16B thereof energizes a motor-driven interrupter 6 whereby the 100 frequency current supplied to section B is interrupted 30 or so times a minute. The track relay has a pull-off magnet 17. The cab-signalling may be effected through inductor pick-up devices but in the arrangement shown the rail current at the engine wheels flows through leads L to a transformer with a tuned winding 49 and the current therefrom, amplified if necessary, energizes a relay 52 a contact 53 of which applies a vehicle power source to a relay 63. With interrupted rail current the relay 63 will therefore periodically close its back contact 67 thereby to flash a red gaseous-conduction lamp 66. A green lamp 56 is similarly flashed by the periodic closure of the front contact 53. Sustained rail current which arises if the ahead section is free, will maintain the green lamp 56 lit and by the front contact 62 will also maintain a brake valve 59 energized. To avoid a braking at caution or danger conditions, when the rail current is interrupted or zero, the driver keeps an " alert " push 70 depressed whereby the brake magnet 59 is maintained energized and a latch magnet 71 is energized to prevent the armature 62 of the relay 63 being latched against its back contact 67 ; thus the signal lamps 56, 66 can respond to any change of condition. The passengers or fireman are notified by an " alert " lamp 76 that the driver has operated the "alert" push. If the power supply for the drive of the interrupter 6 should fail then a relay 8 drops its contact 7 to prevent sustained rail current being wrongly applied. Wayside signals are operated by the track and line relays 9B, 21B. Specification 333,574, [Class 105], is referred to.
Patent GB-572619-A (GB)
Title: Improvements in or relating to method and apparatus for crowning piston rings
IPC: B24B19/11
Filed: 1943-09-17
Abstract: 572,619. Grinding. UNITED AIRCRAFT CORPORATION. Sept. 17, 1943, No. 15295. Convention date, Oct. 17, 1942. [Class 60] Piston rings are lapped to produce thereon a crowned cylinder bearing surface, as shown in Fig. 3, by reciprocation of the rings 10 in a lapping-cylinder 12 by means of a carrier 14, positioned at an angle other than a right-angle to the axis of the cylinder, or mounted in. grooves on the carrier set obliquely to the axis of the cylinder, the carrier being rotated intermittently so that the rings change their position with respect to the cylinder wall. The carrier is mounted on a rod 32 swivelled at 30 to the piston-rod 20 of a piston 18, which is reciprocated by pressure fluid in a cylinder 16, and guided by a cross-head 24 having guide rods 22 sliding in holes in the cylinder head 26 and flange 28. The rod 32 carries a plate 42, on which is journalled a ring 41 connected by a ball-and-socket joint 40 to one end of an arm 34, which is supported at its other end by a universal joint 36. The ring 41 carries a pawl 44 engaging a ratchet 46 on the plate 42, backward rotation of which is prevented by a detent, so that as the piston 18 reciprocates to move the rings axially of the cylinders, the arm 34 &c. causes partial rotation of the rod 32, and thus also of the carrier 14 and the rings 10.
Patent GB-581054-A (GB)
Title: Improvements in differential pressure gauges
IPC: G01L13/02
Filed: 1944-08-11
Abstract: 581,054. Differential pressure gauges. BUDENBERG GAUGE CO., Ltd., and CADMAN, G. Aug. 11, 1944, No. 15317. [Class 106 (ii)] A differential pressure gauge comprises two Bourdon tubes, having independent pressure inlets and arranged coaxially, the free end of one tube being linked with a toothed quadrant pivotally mounted in a frame to which the free end of the second tube is linked, the toothed quadrant engaging a pinion with which an indicating pointer rotates, and the frame being pivotally mounted on the axis of the pinion. In the gauge shown, the free ends a<1>, bl of two Bourdon tubes A, B are adjustably connected by means of links a<2>, b<2> to a toothed quadrant e<2> and a frame G respectively, the toothed quadrant being pivoted on a transverse member g of the frame and the frame being pivotally mounted on a spindle e, which also carries a pinion e<1> enmeshing with the toothed quadrant and an indicating pointer E. Should the pressure applied to tube A exceed that applied to tube B (Fig. 4), the toothed quadrant is rotated in a clockwise direction. about its axis g on the frame and the pointer is rotated in an anticlockwise direction. If the greater pressure is applied to the tube B, the frame is rotated about the spindle e in an anticlockwise direction, thus rotating the toothed quadrant in an anticlockwise direction about its axis g on the frame and rotating the pointer in a clockwise direction. To avoid disengagement between the toothed quadrant and the pinion e<1>, excessive relative movement of the free ends of the tubes is prevented by a hook b<3> on the tube B which encircles a projection a<3> on the tube A.
Patent GB-372569-A (GB)
Title: Improvements in composite tanks for motor cycles
IPC: B62J35/00
Filed: 1931-05-26
Abstract: 372,569. Fuel &c. containers. ETABLISSEMENTS MOTOTINCTEURS, 114, Boulevard de Valmy, Paris. May 26, 1931, No. 15348. Convention date, June 2, 1930. [Class 79 (iii).] A composite fuel &c. tank for a motor cycle comprises a central oil tank 2 secured to the sheet-metal frame 1 of the cycle by screws 5 engaging liquid-tight caps 6 and provided with a cover 3 the edges 7 of which are channelled to constitute suspension means for fuel tanks 14 the walls 8, 9 of which are formed by stamping or pressing and are united in flanges 10 welded &c. together and adapted to be hooked into the channels 7. The side tanks, hung from the central tank in such manner, are held stationary at their lower ends 11 by brackets 12 secured to the tanks and the frame.
Patent GB-812608-A (GB)
Title: Improvements in or relating to noise-controlled switching means for wireless receiving apparatus
Inventor: EDGAR RONALD IAN
IPC: H03G3/26
Filed: 1956-05-17
Abstract: 812,608. Noise-controlled switching means. PLESSEY CO. Ltd. July 22, 1957 [May 17, 1956], No. 15385/56. Class 40 (5). A switching device in which a D.C. voltage derived from the signal/noise ratio of an incoming waveform is applied to an electronic trigger which produces an output to drive a switching relay which in turn controls the muting of the receiver. The incoming waveform at 1, Fig. 1, passes via I.F. amplifier 2 and delay line 3 to the mixer 4 where it is mixed with the output signal f of the oscillator 5. The output of the mixer 4 is fed via filter 6, which selects signal f + I.F. = fl, for the second mixer 7 where it is mixed with the direct feed from the I.F. amplifier. The output of mixer 7 splits and one is taken via filter 8 which selects signal f whilst the other passes via filter 9. Both outputs are then rectified and used differentially to provide a D.C. input to the trigger circuit, Fig. 2, which will vary in accordance with the signal/noise ratio of the incoming waveform. When the signal/noise ratio is more positive than a predetermined figure the input to V7, Fig. 2, is more positive and V7 draws more current. Thus the voltage at the grid G1 of V8 becomes more negative, the left-hand triode draws less current and the voltage at G2 of V8 becomes more positive. This in turn increases the anode current of the right-hand triode and the voltage drop across the cathode resistor R40 is increased, effectively making the voltage at G1 more negative. The cycle is repeated until the valve reaches saturation and the grid of V9 becomes sufficiently less positive to release the relay RL which switches on the muted receiver. When the signal/noise ratio is such as to cause a negative swing in the input voltage the reverse action takes place and the relay is held operated to mute the receiver.
Patent GB-1044533-A (GB)
Title: Process and apparatus for the manufacture of cellular materials
IPC: B29C33/02
Filed: 1963-04-18
Abstract: 1,044,533. Moulding cellular material. J. A. A. DELBARRE, J. C. L. P. DELBARRE, and J. P. M. SCHMITT. April 18, 1963 [April 18, 1962], No. 15415/63. Heading B5A. Cellular material, e.g. rubber, having closed cells is formed in a mould by mixing with a blowing agent, introducing it into a mould, together with an inert fluid, and expanding the material, whilst allowing the fluid to escape gradually. The fluid may be a liquid, e.g. mercury or silicene oil or a gas, e.g. nitrogen, under pressure. The fluid may be returned to the mould after expansion to eject the article.
Patent GB-390025-A (GB)
Title: Improvements in and relating to the manufacture of rubber chlorination products
IPC: C08C19/14
Filed: 1932-06-01
Abstract: The apparatus described in the parent Specification in which apparatus for chlorinating rubber comprises a vessel in which rubber is dissolved, a chlorinating vessel provided with stirrers, means for recovering the gases evolved, and means for evaporating the solvent from the chlorinated rubber solution, is modified by the provision of (a) an expansion valve in the gas outlet of the chlorination chamber, whereby chlorination can be effected at a high pressure, (b) stirring means in the chlorination vessel which throw the solution outwards and produce a suction on the chlorine inlet, (c) a vessel containing water heated to a higher temperature than the boiling point of the solvent into which the chlorinated solution is led.
Patent GB-127482-A (GB)
Title: Improvements in Railway Sleepers.
Inventor: FABER OSCAR
IPC: E01B3/10
Filed: 1918-09-24
Abstract: 127,482. Faber, O. Sept. 24, 1918. Sleepers, pot; tie-bars.-Reinforced-concrete pot sleepers are connected by timber ties. The ties b may rest in a recess in the sleepers a and may be connected by dowel pins c or by bolts, which may also secure the rails. The rails may rest on the ties or in chairs or chair-plates, and the bearing-area may be increased by pieces of timber on either side of the tie; or two ties may be used to connect two sleepers. Sleepers and parts, arrangement of.-The ties may be used only with every second or even third sleeper.
Patent GB-366839-A (GB)
Title: Improved supporting means for the driving members and the like of mechanical looms
IPC: D03D49/20
Filed: 1931-05-27
Abstract: 366,839. Looms. SOC. ANON. ASAURER, Arbon, Switzerland. May 27, 1931, No. 15560. Convention date, May 27, 1930. [Classes 142 (i), 142 (ii), and 142 (iii).] Framework.-In looms having multiple bearings in the loom frames at each end of the driving shafts, the frames 6, 7, Fig. 2, are made box-shaped and accommodate in a dustproof manner the essential parts of the driving mechanism detailed below, while the main driving shaft 2 is mounted in a hollow cross member 1 connecting rigidly the loom frames. In alternative constructions, the frames are made with a central frame-like portion closed on each side by a cover having bearing projections for the pivots or shafts, or in halves each having bearing projections and bolted together to form the box-shaped frame. Driving arrangements.-The main driving shaft 2 driven through a clutch 4, Fig. 2, has two bearings in each frame 6, 7. Beat-up motions.--Two gear wheels 10, 10a, Fig. 2, on each end of the driving shaft 2 mesh with a pair of gear wheels 12, 12a between which are arranged cranks 14, 15 for operating the connecting-rods 16, 17. Picking-motions.--One of each pair of wheels 12, 12a, Fig. 2, gears with a wheel 21 or 22 on a shaft 23 having two bearings in each frame and carrying the picking noses 26, Fig. 3, for operating the picking levers 27 co-operating with the picking shoes 28, Fig. 1. Lays.-The lay swords are each mounted in two bearings 20 in the loom frames. Shedding-motions.-A shaft 37, Fig. 1, has two bearings in an extension 38 of one of the side frames, is driven by skew gears 35, 36 from the main driving shaft, and has grooved discs 42 in which work rollers 44 of levers 45 operating the healds 41 through mechanisms 46. Cloth beams ; take-up motions.-The shaft 29 of the cloth beam 30, Fig. 2, is mounted at each end in two bearings 31, 32 in the frames 6, 7, the transverse shaft 33, Figs. 2a and 3, of the cloth beam regulator 34 also being supported at both ends.
Patent GB-402450-A (GB)
Title: Apparatus for the production of artificial filaments and like products
IPC: D01D4/02
Filed: 1932-06-02
Abstract: <PICT:0402450/IV/1> <PICT:0402450/IV/2> <PICT:0402450/IV/3> <PICT:0402450/IV/4> <PICT:0402450/IV/5> A spinning-jet for the production of artificial filaments, threads, yarns, or the like comprises a relatively thick metal face which is pierced so as to form spinning orifices, and which is made thinner at the points where the spinning orifices are located so that the length of the orifices is less than the general thickness of the metal face.  Recesses may be formed in the metal of the jet face by stamping.  The jet face may be flat, but for greater strength it is made concave or convex.  The orifices may be bored perpendicular to the jet face before it is bulged, or they may be bored parallel to the axis of the jet after bulging of the jet face.  As shown in Fig. 2, the upper side of the jet face is provided with bowl-shaped depressions 17 through the bottoms of which the spinning orifices 15 are bored.  The outer face of the jet remains smooth so that the operation of jet wiping at commencement of spinning is not hindered.  As shown in Fig. 3, the orifices 15 are bored from the apices of conical depressions 18 formed in the upper side of the jet face by countersinking with a pointed tool.  As shown in Fig. 4, the orifices 15 are bored from depressions 16 in a convex jet face 20.  The orifices 15 are preferably bored after the jet face has been brought into its convex shape in order that they may be parallel to each other, and be situated at the lowest point of the depressions.  The depressions may be bowl-shaped or conical as shown in Figs. 5 and 6.  The device may be employed in dry or wet spinning processes and particularly in the dry spinning of cellulose acetate.  Specification 402,449 is referred to.
Patent GB-1495321-A (GB)
Title: Apparatus for pulsed arc welding and building-up of articles
IPC: B23K9/09
Filed: 1975-04-16
Abstract: 1495321 Arc-welding systems INST ELEKTROS IMENI EO PATONA AKAD NAUK UKRAINSK SSR 16 April 1975 15602/75 Heading H2H  Arc welding apparatus comprises a rectifier circuit 7-12 having a choke 13 at its output, a current pulse generator including bridge rectifier 20 comprising thyristors 21, 22, the bridge being connected in series with an electrodeworkpiece arc gap 1, 2 and the choke 13 and arranged so that a welding current can continuously flow through the choke and are-gap irrespective of the state of conduction of the thyristors 21, 22. As shown, a 3 phase mains supply 5 is provided and passed via transformer 3-6 tothe rectifier and choke 7-13. One phase of this is also applied across primary 18 of transformer 14 the output of which is applied to A.C. terminals of the bridge 20. An A.C. supply which is synchronized with that across primary 18 is applied to a bridge rectifier 80 and the circuit including transistor 87 provides a sawtooth voltage across the capacitor 90. This is compared with a fixed voltage across capacitor 91 by transistor 46 which is thereby caused to produce a square wave output of about ¢ markspace ratio. Conduction of transistor 46 controls that of transistor 50 which allows the capacitor 55 to charge linearly whilst the transistor 50 is off. This periodic ramp voltage is compared with a voltage across capacitor 61 which is derived by voltage divider 56 via switch 62 from that determined by a setting potentiometer 39. As soon as the ramp voltage is in excess of that across capacitor 61 transistor 63 becomes conductive and transistor 65 is turned off. A pulse is thereby produced by differentiator 68, 69 and via transistor 70 flows in the primary of transformer 73 to provide via secondaries 74, 75 triggering pulses for both thyristors 21, 22. Thus a D.C. pedestal voltage is applied continuously across the arc gap 1, 2 with periodic D.C. pulses superimposed whose amplitude and duration is dependent on the setting at 39. For automatic operation the switch 62 may be moved to its alternative position where the voltage at capacitor 61 is proportional to the mean arc voltage as determined by feedback integrating circuit 31. This is compared with the ramp voltage as above which is still generated via setting resistor 39. Mean voltage variations across the arc may thus be compensated.
Patent GB-1502516-A (GB)
Title: Apparatus for humidifying gases
IPC: A61M16/16
Filed: 1976-04-15
Abstract: 1502516 Humidifiers DRAGERWERK AG 15 April 1976 [15 April 1975] 15726/76 Heading A5T An apparatus for humidifying a gas (e.g. in a respiratory apparatus) comprising a housing 1, heating means 19 in said housing having an evaporating surface 4, partitioning means 8 in said housing arranged face-to-face with said evaporating surface 4 and providing therewith an evaporating chamber 9 therebetween and providing with said housing a mixing chamber 22, water duct means 5 leading to said evaporating chamber for evaporation, gasduct means 26 and 11 extending to said mixing chamber for leading thereto gas to be humidified and extending from said mixing chamber for leading therefrom humidified gas, and holes 20 through said partitioning means communicating said exaporating chamber 9 with said mixing chamber 22 for passage of water vapour from said evaporating chamber to said mixing chamber, said heating means being capable of immediately evaporating the water supplied to said evaporating chamber from said water duct means. The evaporating surface 4 may be grooved. A sump 14 with float valve 16 may be provided for excess water. The humidifier may form part of a respiratory apparatus in which exhaled air is passed through tube 12-13 to supply additional heat,