baber/WOPTO huggingface dataset:
Patent GB-1183566-A (GB)
Title: Flow Operated Shutoff Valve
IPC: F16K17/20
Filed: 1968-06-17
Abstract: 1,183,566. Valves. BELL AEROSPACE CORP. 17 June, 1968 [26 July, 1967], No. 28720/68. Heading F2V. The valve is connected at P IN , POUT into an hydraulic pressure fluid supply line to a utilizing apparatus, and at R IN , R OUT  into a return line from the apparatus, Fig. 1 (not shown). The valve includes a control spool 24 which is responsive to the pressure drop across orifices 28 on the supply side and also to the pressure upstream of orifices 34 on the return side acting in the opposite direction, so as to shut off the supply in the event of leakage or rupture on the return side. The orifices 28 are provided in a partition 25 in the interior of the spool, and this partition also provides an obturating member 29 co-operating with a seat 31 to shut off the flow. Transient pressure surges are rendered ineffective by a damping piston 42 housed in a stationary piston 41. The device is also operative to shut off the supply line under no flow conditions in the event of leakage or rupture. To this end a chamber 56 at the left-hand end of the spool is connected to the downstream side of a check valve 51 in the return line. On leakage or rupture upstream of the check valve, the chamber 33 at the right-hand end reaches atmospheric pressure, whilst sufficient pressure prevails in the chamber 56 to close the valve. A normally balanced position under flow conditions is set up by obturation of the ports 34 by the spool.
Patent GB-427039-A (GB)
Title: Improvements in and relating to wireless direction finders
IPC: G01S1/02
Filed: 1933-10-18
Abstract: 427,039. Directive wireless signalling. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Taylor, L. A. ; 144, Country Club Drive, Schenectady, New York, U.S.A.) Oct. 18, 1933, No. 28852. Convention date, Oct. 26, 1932. [Class 40 (v)] Relates to means of the type described in Specification 393,436 for giving a visual indication of the bearings of a distant beacon station. An aeroplane or other mobile craft is fitted with a frame aerial 1, a non-directional aerial 7, and a low-frequency generator 9 which feeds oscillations F of a fundamental frequency to the output circuit 12 of the rectifier 5 (coupled to the aerial 7) and an even harmonic frequency F2 to the amplifier and modulator 3 coupled to the frame aerial 1. The arrangement gives a direct indication in the meter 14 as the frame aerial 1 is moved to one side or other of its zero pick-up position. A non-linear resistance 15, of the type described in Specification 292,110, [Class 37], which passes a rectified current only when subjected to an asymmetric wave of the kind shown in Figs. 3 or 4, is inserted in series with the meter 14. The rotation of the frame aerial produces the outof-phase relation between the currents F, F2. The double-frequency generator 9 in combination with the resistance 15 is a convenient alternative to the use of a push-pull amplifier.
Patent GB-462446-A (GB)
Title: Improvements in or relating to air cooled suspended furnace roofs
IPC: F27D1/02
Filed: 1936-10-23
Abstract: 462,446. Furnace roofs. ETWANIK, J. Oct. 23, 1936, No. 28872. Convention date, Nov. 5, 1935. [Class 51 (i)] In a furnace roof of the kind in which the roof blocks are suspended on aircooled tubes b, b<1> connected to headers c, d, some of the tubes, b, are provided with air nozzles e delivering downwardly into the furnace chamber. A fan f supplies air through a pipe g to the header c from which it passes through the lateral tubes b<1> to the upper header d and to the nozzles e which are removable through tubular extensions h. Tapered plugs i, Fig. 4, may control the supply of air through the nozzles. Fig. 5 shows a modification in which pressure air is delivered through an adjustable pipe l and nozzle k, the blower f being dispensed with if necessary. The upper bearer d forms a support for the furnace wall.
Patent GB-1165458-A (GB)
Title: A Method of Producing Fine Nozzle Openings of Small Nozzles made of Plastics Material
Inventor: SPRANGER HELMUT
IPC: B26F1/28
Filed: 1967-06-22
Abstract: 1,165,458. Perforating plastics material. POLYPLASTE H. ROLF SPRANGER K.G. 22 June, 1967, No. 28873/67. Headings B4B and B5A. In a method of producing fine nozzle openings in a plastics nozzle body 4, a spark is discharged through the body between the tapered ends of two electrodes 1 and 5, e.g. of tungsten-silvernickel alloy. One or both of the electrodes may have a bore through which a stream of gas passes. The gas may be hot and the electrodes may be heated.
Patent GB-935818-A (GB)
Title: Forming protective surface coating of sand asphalt in sandy soils
IPC: E02B3/12
Filed: 1962-07-30
Abstract: 935,818. Soil stabilization; sub-aqueous walls. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 30, 1962 [Aug. 1, 1961], No. 29183/62. Classes 68 (1) and 68 (2). A protective surface layer of sand asphalt is formed over sandy soil by directing a jet of water on to the soil in such a way that the sand and water together are violently agitated to some depth, whilst bitumen emulsion is simultaneously directed at and entrained in the sand agitated by the water. The emulsion is preferably of a rapid-setting type containing a cationic emulsifier. Specification 838,840 is referred to.
Patent GB-1317046-A (GB)
Title: Separators
IPC: B01D21/00
Filed: 1970-06-17
Abstract: 1317046 Settling apparatus PIELKENROOD-VINITEX NV 17 June 1970 [28 June 1969 4 Aug 1969 (2)] 29311/70 Heading B1D A device for separating floatation and/or sedimentation components from a liquid comprises a separation assembly comprising groups of separation zones each group comprising first and second substantially parallel zones 1, 2 arranged at different heights, the first and second zones of a group being connected by a third zone 3 of smaller cross-section. The first and second separation zones may be round or polygonal in cross-section, may be formed by superposed corrugated members and may taper longitudinally. The connecting zones 3 may also be corrugated. Any precipitate formed falls to the lower part of zones 2. Partitions may be located at the ends of the zones to form ducts connecting each first zone together and each second zone together.
Patent GB-179118-A (GB)
Title: Improvements relating to the feeding and lifting of the ink ribbon of typewriting machines
IPC: B41J35/00
Filed: 1921-01-28
Abstract: 179,118. Sßndor, F. Jan. 28, 1921. Ink-ribbon mechanism.-Feeding and 'vibrating devices of the character described below are operated by a laterally oscillating spindle which is connected to a universal bail operated by the type-members. The oscillating spindle 9, Fig. 2, is secured to levers 10 on a shaft 11 and is connected to a universal bail 6 operated by typelevers. A lever 21 operating the sliding vibrator 23 is formed with a slot 20 engaging a finger 19 on an arm 13 which is mounted on the spindle, and during the rearwards movement of the spindle abuts on a stop 14. The stop may be formed with ledges 16, 17 of different height and a recess 18. The arm is movable laterally, to adjust the stroke of the vibrator, by means of a handle which is arranged at the front of the machine and operates a lever 28 connected by a link 27 to the arm. The lever engages a spring catch 34, and the handle is provided with an indicator having marks visible through a window. The vibrator is silenced for stencilling by setting the arm 13 in register with the recess 18 in the stop. For increasing the stroke of a vibrator when the platen is shifted, the stop 14 may be mounted on the shift frame. The inkribbon spools 35 are provided with ratchet-wheels 37, Fig. 4, co-operating with pawls 36 which are pivoted to the levers 10 and are associated with automatic reversing-mechanism comprising a rocking beam 38 provided at each end with a lug 40 and a roller 44 for raising and depressing the pawls respectively. Each spool is provided with a lever 45 having a guide-slot for the ribbon, and a cam 47 for engaging the associated roller 44. When the ribbon has been wound off either spool, a projection 50 on the ribbon rocks one of the levers 45 and affects reversal. A detent 52 engages notches in the rocking beam. As applied to the divisible machine described in Specification 158,576, the shift frame carrying the stop 14 is mounted on the rear part of the machine, and the remainder of the above-described mechanism is mounted on the front part of the machine.
Patent GB-1146668-A (GB)
Title: Modified clay
Inventor: TAYLOR MICHAEL JOHN
IPC: C04B33/13
Filed: 1965-07-12
Abstract: 1,146,668. Modified clay. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 July, 1966 [12 July, 1965], No. 29434/65. Heading C1A. A naturally occurring water swellable clay of base exchange capacity 20-120 milliequivalents per 100 g. clay is modified with a water soluble polymer or copolymer of vinyl pyrrolidone or a derivative thereof, generally of M.wt. 2000 to 3,000,000 and in amount 5-400% by wt. The modified clay of the invention may be used as a thickener for aqueous compositions generally in amount 0À25-10% by wt. based on the wt. of the aqueous phase. In the examples polyvinyl pyrrolidone and copolymers of vinyl pyrrolidone and vinyl acetate are used as modifiers. The clay preferably contains montmorillonite, e.g. bentonite or hectorite, in which the Ca and Mg ions may be replaced by Na.
Patent GB-1457710-A (GB)
Title: Process for the continuous production of monochloroalkanes and monochlorocycloalkanes
IPC: C07C17/16
Filed: 1975-07-14
Abstract: 1457710 Monochloro-alkanes and -cycloalkanes DEUTSCHE TEXACO AG 14 July 1975 [20 July 1974] 29507/75 Heading C2C Monochloro-alkanes or -cycloalkanes containing more than 4C atoms and with the Cl atom bonded to a specific C atom are prepared in a continuous process by reacting the corresponding alcohol with HCl in the presence of aqueous ZnCl 2  solution as catalyst by passing a thin layer of a mixture saturated with HCl and containing 1À5-3 parts by weight of a conc. aqueous ZnCl 2  solution containing at least 50% by weight zinc chloride and 1 part by weight of the alcohol downwardly at a temperature of at least 50 C. through a reactor of large-internal surface area and passing sufficient gaseous HCl in countercurrent to the solution that an excess of HCl amounting to at least 5% based on the amount of HCl required for complete reaction of the alcohol, is available. The reactor is preferably a heat exchanger or a column or tower fitted with trays or packing. In the examples monochlorocyclohexane and 1-chlorododecane are prepared.
Patent GB-1537113-A (GB)
Title: Fastening arrangement for an axially multiply divided roller to be used in a continuous casting plant
IPC: F16C13/02
Filed: 1976-07-15
Abstract: 1537113 Mounting nip-roller assemblies VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE ALPINE MONTAN AG 15 July 1976 [18 July 1975] 29520/76 Heading B8A [Also in Division B3] In a guideway, for a continuously cast strand, a roller has holders 3 and 4 (which can be bearings 25/26, Figs. 3, 4, not shown), each received in a notch-like recess 7, Fig. 2, of a bracket 5 or 6, Fig. 1 (as shown there are two recesses 7 each widening upwardly to give a trapezoid-like form, Fig. 2, and receiving an end support 3 of one or the other of two rollers) connected as by bolts 10, in beams 8, 9 of the guideway; to facilitate removal and installation of a roller, only the end supports 3 are releasably secured to their brackets 5, the supports 4 being unsecured in the recesses 7 of the brackets 6. As shown, roller bodies 1 are rotatably mounted along a fixed shaft 2, having squared ends 20 for securement against rotation, with notches receiving plates 21 fixed to the holders 3 to prevent axial displacement. Each end-holding means 3 has lugs 14 by which it is secured releasably by a wedge 17 force-fitted in aligned holes in the lugs and passed through a hole in an interposed catch 16 on the bracket 5. In another embodiment, a single roller body has main roller portions (22) joined by necks (23) held in split bearing bushes (25, 26). The supporting brackets (30) are straddled by lugs (32) on the bearing parts (26) so that the parts can be secured by a wedge (33) force-fitted in bracket holes and passed through holes in the lugs.
Patent GB-614326-A (GB)
Title: Rotary meter
IPC: G01F3/06
Filed: 1945-11-06
Abstract: 614,326. Reverse-gear. BOWSER, Inc. Nov. 6, 1945, No. 29532. Convention date, Nov. 6, 1944. [Class 80 (ii)] [Also in Group XXVI] The train of gears connecting a rotary liquid meter (see Group XXVI) to its indicating mechanism includes means whereby an idler gear can be interposed to allow the direction of flow through the meter to be reversed. The drive is transmitted between gears 129 and 151, Fig. 4, either through a single idler gear 131 or through two idler gears 143, 145, according to the position of a manually-adjustablepivot bracket 133 which carries the idler gears. A screw 149 passing through a slot 147 holds the bracket in the required position. The Specification as open to inspection under Sect. 91 also comprises an alternative mechanism in which automatic reversal is provided by the use of two free-wheel clutches 263, 281, Fig. 8 (Cancelled), having peripheral gear teeth 273, 277 respectively. The clutches are of the wedge-and-roller type and are of opposite hands. For one direction of rotation of the meter, clutch 281 transmits the drive from a hub 259 directly to a gear 285; on reversal, the drive takes place through clutch 263 and an idler gear 283. This subject-matter does not appear in the Specification as accepted.
Patent GB-207547-A (GB)
IPC: B01J20/00
Filed: 1923-11-23
Abstract: Vapours adsorbed in porous materials such as active carbon, silica gel, and alumina, that have been used, for example, for separating benzol vapour from air, are recovered by direct electric heating of the adsorbent material.  The electric current may be supplied to electrodes embedded in the material, the latter acting as a resistance; or the current may be produced indirectly, for example, by currents induced in a ring of conducting-material in the adsorption medium; and the adsorbent material, for example, silica, if not sufficiently conductive, may have mixed with it suitable conducting substances such as carbon or metal powder, or a layer of metal powder may be treated with conductive liquids or it may be converted by physical or chemical treatment into a conducting substance, for example, carbon may be converted into silicon carbide; alternatively, electric resistance heating-elements such as grids or coils may be embodied in the adsorbent materials.  Distillation may be assisted by a scavenging gas or vapour, for instance, by supplying water to the adsorbent materials prior to or during the distillation period.
Patent GB-800509-A (GB)
Title: Curing bag for moulding tyres
IPC: B29C43/10
Filed: 1956-09-28
Abstract: 800,509. Curing bags for tyres. GOODYEAR TIRE & RUBBER CO. Sept. 28,1956 [April 5, 1956], No. 29645/56. Class 87(2). A curing bag for tyre moulds carries a plurality of grooves of V-shaped cross-section in the part of its outer surface which makes contact with the inner surface of the tyre 19, each of said grooves being about 1/16 of an inch wide at the said outer surface and less than 1/16 of an inch deep. The grooves 12 are cut or moulded on the bag 10 and extend each in a radial plane relative to its axis. They are spaced circumferentially apart at about every ¢ inch at the crown 14 and at about every  “ inch at the toes 13, 15 of the bag. In operation the grooves allow the escape of air trapped between the tyre and the bag when the latter is inflated.
Patent GB-1401321-A (GB)
Title: Foamed silicate
IPC: C04B22/00
Filed: 1972-06-23
Abstract: 1401321 Foamed silicates SOUTHWEST RESEARCH INSTITUTE 23 June 1972 [9 July 1971] 29678/72 Heading C1A A foamed product is made from a mixture of a surface tension depressant and an aqueous soln. of sodium silicate by high speed mixing with a gas at greater than atmospheric pressure to form a wet foam having density <43 lb/ft.<SP>3</SP>, an average cell size <240 microns, an average cell wall thickness <24 microns and at least 50 cells per mm.<SP>3</SP>, and reacting the wet foam with a silicon dioxide polymer forming agent selected from the compounds specified in Claim 1 in an amount sufficient to make the product rigid and resistant to water solubilization. The dry foam has a density of <20 lb/ft.<SP>3</SP>, an average cell size of <300 microns, an average wall thickness of <16 microns and at least 50 cells/ mm.<SP>3</SP>. The foam may be modified by containing up to 4% by wt. of fibrous filler and can be forced through a conduit on to a surface prior to it becoming rigid.
Patent GB-909753-A (GB)
Title: Preservation of compounds liable to oxidation
Inventor: BEVAN MORFYDD ANN
IPC: C08K5/24
Filed: 1960-08-29
Abstract: Rubber (natural or synthetic), polyethylene, polypropylene, polystyrene or polyvinylchloride may be stabilized against ozone by the incorporation therein of 0,1 to 5% of a hydrazide. Hydrazides used in the examples are sebacic dihydrazide, adipic dihydrazide, N-acetyl-amino-piperidine, N-pivaloyl-aminopiperidine, N2:N4-hexamethylene succinic dihydrazide, N2:N4-bis(isopropyl) succinic dihydrazide and N2:N4-bis(isopropylidene) succinic dihydrazide.
Patent GB-629498-A (GB)
Title: Improvements relating to contact assemblies for plug-in devices
IPC: H01H50/04
Filed: 1947-11-07
Abstract: 629,498. Two-part couplings. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Nov. 7, 1947, No. 29693. Convention date, April 24. [Class 38 (i)]  The contacts 3 of a multipin plug device, e.g. a relay, are located in pairs in grooves 1c in the parallel sides of the openings 1b extending through an insulating back plate 1 on the device body and are held there by clamps 5, 6. The clamp 6 is distorted by a wedge 7 on a screw 8 screwing into the clamp 5, which has projections 5c engaging slots in the contacts, and which abuts shoulders 1e intersecting the openings. The clamp 5 may be channelshaped like the clamp 6 or may be extended to project between the contacts thereon (Figs. 9, 10, not shown) in which latter case the wedge is replaced by a spring abutting one side of the openings. Alternatively, the wedge 7 may be patelliform and the head of the screw 8 complementarily shaped (Fig. 8, not shown). The co-operating contacts 4 are mounted in cavities 2b in a mounting-plate 2 and have spring tips 4c, The cavities 2b merge into recesses 2c on either side and into slots 18a in a plate 18 for retaining the contacts in the cavities. The recesses 2e are widened at 2e to engage the  contact tips 4c with the edges of the slots 18a, the contacts 4 being stepped at 4b to spring the  contacts into position between the cavity lips 2f and the edges of the slots 18a.
Patent GB-860723-A (GB)
Title: Low temperature refrigeration
Inventor: BOCQUET PHILIP EDMUND
IPC: F25J1/02
Filed: 1959-08-31
Abstract: 860,723. Liquefaction of gases. CONCH INTERNATIONAL METHANE Ltd. Aug. 31, 1959, No. 29696/59. Class 8(2). Liquefaction of a first gas e.g. methane by heat exchange with a colder second gas of lower boiling point, e.g. nitrogen is effected by passing compressed methane through passages 22, 16, 10 of series arranged heat exchangers 6, 4, 2 in countercurrent to pressurized liquid nitrogen forced by a pump 28 through passages 8, 14, 20 and also in countercurrent to nitrogen gas exhausted from the passage 20 of exchanger 6 after expansion and consequent cooling in a turbine 36 and traversing passages 12, 18 of exchangers 4, 6. As shown the mass flow rates of the methane and nitrogen are equal and the extra cold requirement is met by an external refrigerator 26 driven by the turbine 36 and exhausting through a passage 24 in exchanger 6.
Patent GB-201468-A (GB)
Title: Improvements in safety devices for ladders
IPC: E06C7/46
Filed: 1922-10-31
Abstract: 201,468. Winkler, A. Oct. 31, 1922. Ladders. - A non- slipping device for ladders comprises a socket member 5 adapted to receive the ladder foot and provided with a slot 7 in which slide clamping plates 9 to grip the ladder sides, and a pivoted non-slipping shoe 1 provided with projecting rubber discs 2. The angle of inclination of the shoe to the ladder foot is limited by the side of the recess 3 into which project the lugs 4 on the clamping portion 5. An upper supporting band 10 may be provided for the clamping plates.
Patent GB-936070-A (GB)
Title: Web severing and roll winding mechanism
IPC: B65H19/26
Filed: 1962-08-02
Abstract: 936,070. Winding webs. HENRY SIMON Ltd. (Midland-Ross Corporation). Aug. 2, 1962, No. 29701/62. Class 100 (1). Relates to web winding apparatus including means for severing and attaching a running web to an empty roll core having its peripheral speed the same as the linear speed of the web. As shown in Fig. 1, a web roll R is nearing completion on a driven core supported in a roll stand 1. An empty core 14 is rotated to the position shown in arms 6 and 7 and its speed brought up to the speed of the web W. Attached to one end of the core 14 is a hook 21, Fig. 3. Positioned beneath the running web is a wire 27, looped over a pair of pins mounted on the piston-rod 23 of a vertical pneumatic cylinder 22 at one end, and gripped by a gripper 30 to the piston-rod 29 of a horizontal pneumatic cylinder 28 at the other end, Fig. 2. To commence severing the web and attaching it to the empty core 14, the piston 23 is raised so that the hook 21 engages the loop of the wire 27 and the horizontal pressure cylinder pays out the wire 27 under tension whilst the wire wraps around the core 14 in helical fashion. The web is severed at the point where the wire holds the web against the core 14. The wire 27 is released from the gripper 30 when the web has been completely severed and the core 14 commences to wind the web W. In a second embodiment, Figs. 6 to 8 (not shown), a hollow core is used and the hooking mechanism is provided on one of two releasable chucks for mounting the core in the reel stand. In a third embodiment, Figs. 9 and 10 (not shown), the severing and attaching mechanism is mounted on a stand separate from the reel stand.
Patent GB-409283-A (GB)
Title: Improved process and means for manufacturing glass vessels from tubing
IPC: C03B23/09
Filed: 1932-10-24
Abstract: 409,283. Glassware manufacture. DICHTER, J., 4, Munzstrasse, Berlin. Oct. 24,1932. No. 29734. [Class 56.] Glass vessels are formed from cut lengths of tubing by heating one or both ends and pulling out by means of mechanical grasping implements to form a narrow neck. A length.of tubing 10 is heated at one end while supported by a mandrel 13 shaped to produce a bellmouth 16. The tubing is slowly rotated, a tool 14 producing a shoulder. Tongs 15, Fig. 3, then stretch the neck 17 over an elongated mandrel 18, both the tube and tongs preferably being rotated, and the mandrel either fixed or rotatable. The other end of the tube can be treated similarly, or the tube parted and bottomed if single neck ampoules are required. For producing a constriction, a narrow flame 20, Fig. 4, is applied and a rotary disc 21, having a V-shaped or a serrated edge, is fed against the neck while a mandrel 22 is pushed inwardly to form a bulge 23, Alternatively, the glass may be heated until it partially collapses to form a waist portion 23<a>. As shown in Fig. 7, a smooth disc 25 forms a breakage point, while a mandrel 26 is pressed against the neck 17 by means of a spring 27, and is axially bored for supplying compressed air to form a bottom 28.