baber/WOPTO huggingface dataset:
Patent GB-1116959-A (GB)
Title: Irradiation facility with flooding and draining means
IPC: G21K5/02
Filed: 1965-11-05
Abstract: 1,116,959. Irradiation apparatus. P. VIDAL. 5 Nov., 1965 [10 Nov., 1964], No. 47132/65. Heading H5R. In an irradiation facility in which objects or products are introduced into a chamber to be treated with ionizing radiation from radio-active sources, the irradiation chamber incorporates means for flooding it with water during the handling and positioning of the radio-active sources and means for draining off the water prior to putting said chamber into service. The facility also incorporates a second room shielded from the radiation zone in which all operations prior to and after irradiation are performed on the products or objects. A conveyer system communicates between the irradiation chamber and the servicing room via a system of baffles which maintain the necessary shielding between the rooms, which baffles may be sealed by water-tight doors where the irradiation chamber is flooded. The roof of the irradiation chamber is fitted with a movable system of shield plugs which may be removed only when the chamber is flooded, when fresh radiation sources may be introduced through the opening provided. The opening may be surrounded with a water-tight frame which is also filled with water to provide the operator with additional shielding during manipulation of the radio sources. If desired, the operator may be positioned in a nacelle supported on the top of the water-tight frame during these handling operations. The floor of the irradiation chamber preferably inclines towards a central depression above which the radio-active source is positioned and in which the necessary draining orifices are formed. The shielding walls of the chamber preferably comprise a double wall with high density shielding material placed in the cavity. The chamber may be equipped with means for washing the walls, the radiation sources, and the conveyer, with means for drying the chamber after the washing, with means for removing the ozone produced during irradiation and with means for cooling the conveyer system and the sources. The floor of the servicing room is preferably raised with respect to that of the chamber and the floors of the baffle passages are sloped so as to increase the run off of the flood-water. The activity of the radio-active source is preferably some tens or hundreds of curies and source array preferably has a height greater than the height of the conveyer buckets moving in front of it. The above facility finds use in the irradiation of fish, particularly on board a trawler, when the facility is necessarily equipped with refrigerated rooms for storing the fish prior to and after irradiation.
Patent GB-1506610-A (GB)
Title: Sealing elements
IPC: A47L9/24
Filed: 1975-11-15
Abstract: 1506610 Vacuum cleaners H WESSEL 15  Nov 1975 47148/75 Heading A4F [Also in Division F2] A vacuum cleaner nozzle has two swivelling joints which are sealed by means of self-adhesive sealing elements 6, 13 of flocculated synthetic plastics fibres.
Patent GB-1160719-A (GB)
Title: Electrically Insulating Fish Plates and Rail-Road Joints Formed Therewith
IPC: E01B11/54
Filed: 1966-10-21
Abstract: 1,160,719. Insulated rail joints. MINNESOTA MINING & MFG. CO. 21 Oct., 1966 [23 Oct., 1965], No. 47401/66. Heading E1G. An insulating joint between railway rails comprises glass-fibre reinforced laminated resinous fish plates 10 bearing between the radius 15 joining the underside of the rail head 13a and the sloping upper surface 17 of the base flange, with the adjacent face 16 of the fish-plate clear of the web 13c, the plates 10 being secured by mechanical means 27 passing through holes 22 in the fish-plates and in four bearing plates 23, positioned in pairs on the opposite sides of the joint, having faces touching the fish-plate faces 11 and opposite faces 24 substantially perpendicular to the holes 22. An insulating end post is positioned between the rail ends.
Patent GB-1092920-A (GB)
Title: Smoking appliance
IPC: A24F1/28
Filed: 1965-11-09
Abstract: 1,092,920. Smoking appliance. J. C. BRITTON. Nov. 9, 1966 [Nov. 9, 1965], No. 47458/65. Heading A2M. A smoking appliance comprises a body 1 and lid 7 of heat-proof plastics material with china clay liners, 4, 8 held in place by metal clips 17, 18. The lid 7 is attached to the body 1 by a spring loaded hinge 13. The liners 4, 8 have multiple projections 16, 10 for compressing and holding in place tobacco inserted therein, and also include mouldings 6, 11 for holding a smoke filter. The lid 7 also carries a silicone rubber seal 9.
Patent GB-1479169-A (GB)
Title: Extrusion machines
IPC: B29C48/405
Filed: 1974-11-04
Abstract: 1479169 Intermeshing screw extruder CREUSOT-LOIRE 4 Nov 1974 [9 Nov 1973 29 Aug 1974] 47627/74 Heading B5A In an extruder for food materials comprising twin intermeshing screws 1, 1<SP>1</SP>, which rotate in the same direction, each screw discharges to a separate plurality of equi-spaced orifices 51, or 51<SP>1</SP>, Fig. 1, arranged along an annular path coaxial with the screw, via an annular section passage 40, or 40<SP>1</SP>, defined between the conical screw tip 2, or 2<SP>1</SP>, and a frusto-conical die surface 41, or 41<SP>1</SP>, and which converges to a passage 6, or 6<SP>1</SP>, coaxial with the screw, from which diverging passage means 14, or 14<SP>1</SP>, communicate with the orifices. In the Fig. 1 embodiment the diverging passage means 14, or 14<SP>1</SP>, is of annular section, defined between the frusto-conical walls 42, 42<SP>1</SP>, of the die 4, and the conical surface of die part 15, or 15<SP>1</SP>, which may be integral with a plate 5 in which the orifices 51 and 51<SP>1</SP> are formed. A knife, Fig. 2 (not shown), rotatable at an adjustable speed, may be provided downstream of each orifice plurality to cut granules from the extruding material. In the Fig. 3 embodiment, the diverging passage means comprises a plurality of separate channels 7, or 7<SP>1</SP>, each diverging from the channel 6, or 6<SP>1</SP>, to a separate orifice 8 or 8<SP>1</SP>. The apparatus may be used to extrude food materials containing starch and water and which are cooked during extrusion, the extrudate expanding from the orifice due to the release of super heated water. Such extrusion is facilitated by the sum of the section areas of the channels 7, 7<SP>1</SP>, being equal to the maximum of that of the channel 6, or 6<SP>1</SP>, and by reversed screw threads being employed to raise the extruder downstream pressure.
Patent GB-1147996-A (GB)
Title: Apparatus for the air-stream cooling and solidifying of melt extruded elongate material
Inventor: ZAITSEV ALEXANDR PAVLOVICH
IPC: D01D5/092
Filed: 1966-10-26
Abstract: 1,147,996. Melt-spinning chimney. VSESO. JUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT MASHIN DLYA PROIZVODSTVA SINTETICHESKIKH VOLOKON. 26 Oct., 1966, No. 48041/66. Heading B5B. As shown in Figs. 1 and 2 of the drawings, a filament-quenching apparatus adapted for the cooling and solidification filaments in meltspinning comprises a filament-quenching chimney 4 separated from a plenum chamber 3 by screens 5 and a lattice 6 for initially directing the pressurized quenching air from the plenum on to the filaments 9 melt extruded through the spinneret 1. The chimney 4 is divided into horizontal compartments 8 by the pairs of horizontal partitions 7, each member of the pair being provided with a recess or cut-away portion 10, the two opposing recesses constituting an opening 11 for the passage of the bundle of filaments through the partition 7 and the openings in the partitions being in alignment or register to form a passageway for the travel of the bundle of filaments down through the quenching chimney 4. The compartments 8 between adjacent pairs of horizontal partitions 7 are intended to prevent turbulence in the air stream passing horizontally through each compartment and to minimize the flow of air downwards with the filament bundle. The plenum chamber 3 communicates with an ante-chamber 2, both chambers forming part of a housing 12. The chambers 2 and 3 are provided with a common conduit whose lower cylindrical portion 14 projects into the chamber 2 and whose tapered upper portion extends the full length of chamber 3. The portion 14 of the conduit is provided with holes 16 of equal diameters spaced uniformly over the entire surface thereof. The portion 15 of the conduit is provided with spaced holes 17 only in that portion of the surface which faces the wall of the plenum chamber 3 opposite the screens 5. The holes 17 are of increased diameter as one proceeds from the top of the portion 15 of the conduit to the bottom thereof so as to obtain a uniform air stream velocity throughout the whole height of the plenum chamber 4. The bottom of the ante-chamber 2 communicates with a source of pressurized air and is provided with a device 18 adapted to control the rate of air feed into the quench chimney. Device 18 comprises a lead screw 19 whose nut 20 is connected by means of a bent rod to a spring-loaded valve 22 co-operating with a port between the inlet chamber 23 and the chamber 2.
Patent GB-1241839-A (GB)
Title: Pyridinium compounds
IPC: C07D213/20
Filed: 1968-10-10
Abstract: 1,241,839. Pyridinium salts. PFIZER Inc. 10 Oct., 1968 [16 Oct.,1967], No. 48161/68. Addition to 1,192,393... Heading C2C'. [Also in Division A5] Novel, therapeutic compounds (I) wherein A-B signifies COCH 2  and Y is 3-Me-, -Et-, -Cl-, -Br- or -I-2-thienyl or A-B.signifies CH=CH and Y is 2-Me- or -Et-phenyl or -3- Cl-, -Br- or -I-2-thienyl, R is H or. Me and X is an anion, are made by reacting Y.COCH 2 X with pyridine or - α-picoline; the products I so obtained can be reduced to give compounds II which are converted into I, wherein A-B is CH=CH, by removing the elements of water.
Patent GB-1493020-A (GB)
Title: Components for wear-resistant surfacing helical metal conveyor blades and the so surfaced blades
IPC: B04B1/20
Filed: 1975-11-24
Abstract: 1493020 Screw conveyers BIRD MACHINE CO Inc 24 Nov 1975 [2 Jan 1975] 48242/75 Heading B8A [Also in Division B2] Components for wear-resistant surfacing a helical metal conveyer blade 32, comprise a segment 34 of wear-resistant surfacing material having a widthwise and radially outer end curvature conforming to that of the helix and diminishing in width from its outer end toward its inner end, with at least one groove 38 (two being shown) across the segment 34 and a bar of metal 36 slidably fitting in the groove 38 and of sufficient length to provide an end portion for welding to the blade 32, the groove 38 and bar 36 having a complementary shape such as to prevent relative movement thereof in directions other than axially of the groove 38. A number of like segments 34 are shown attached to the blade 32, which forms part of a centrifuge (10), Fig. 1 (not shown).
Patent GB-1058801-A (GB)
Title: Ceramic dielectric material
IPC: C04B35/49
Filed: 1964-11-27
Abstract: 1,058,801. Fixed capacitors. BOSENTHALISOLATOREN G.m.b.H. Nov. 27, 1964 [Nov. 30, 1963], No. 48293/64. Heading HIM. A ceramic dielectric with a temperature coefficient in the range Œ20, 10<SP>-6</SP>/‹C., and a dielectric constant above 30 is formed from a mixture of titanium dioxide, zirconium dioxide and stannic oxide with up to 5% weight of nickel oxide by sintering to give a dense material. The coefficient may be varied by adjusting the proportion of titanium dioxide to zirconium dioxide.
Patent GB-1445884-A (GB)
Title: Production of polyamides
IPC: C08G69/04
Filed: 1973-10-17
Abstract: 1445884 Polyamides SUMITOMO CHEMICAL CO Ltd 17 Oct 1973 [17 Oct 1972 25 April 1973 17 May 1973] 48412/73 Heading C3R Polyamides are produced by polycondensing an amino-acid H 2 N-R<SP>5</SP>-COOH or reacting a diacid HOOC-R<SP>1</SP>-COOH and diamine where R<SP>1</SP> and R<SP>6</SP> are hydrocarbon radicals or R<SP>5</SP> is 2 or more hydrocarbon radicals joined by -CONH- or R<SP>6</SP> is 2 or more hydrocarbon radicals joined by -O- or -SO 1 - in the presence of a phosphorous acid ester where R<SP>3</SP> and R<SP>4</SP> are substituted or unsubstituted alkyl, aralkyl or aromatic groups, and pyridine or 2-, 3-, or 4-methyl or 2,6-dimethyl pyridine (which acts as acid acceptor and catalyst, and also, if liquid, may act as solvent). The process is stated to permit useful fibreforming polymers to be obtained even from aromatic reactants under mild conditions without recourse to expensive derivatives. Numerous monomers and phosphite esters are mentioned. In specific examples, all of which use diphenylphosphite and pyridine as catalyst combination and dimethyl formamide or N-methylpyrrolidone as solvent, the following monomers are polycondensed: adipic, succinic, suberic, sebacic or tere- or iso-phthalic acid with hexa- or heptamethylene, p-xylylene or p-phenylene diamine, di - (p - aminophenyl)methane, ether or sulphone, or di - (p - phenoxyphenyl)propane; p-aminobenzoic acid; glycine; glycine hydrochloride; glycyl glycine, alanine and phenyl alanine. Reference has been directed by the Comptroller to Specification 1,093,203.
Patent GB-971140-A (GB)
Title: Closed fluid system for sealing fluid valve pressure elements
IPC: F16K3/36
Filed: 1962-12-21
Abstract: 971,140. Valves. T. J. BOLLING. Dec. 21, 1962 [Feb. 1, 1962], No. 48498/62. Heading F2V. In a valve having a transverse bore obturated by the sliding fit of an element movable upon a stem in a lateral bore, a valve sealing means is effected upon closure by a seal actuated from a closed fluid system containing a piston acted upon by the valve stem. Transverse bore 12 is valved by gate 14, vertically movable upon hand - wheel rotated threaded stem 15 passing through a non-rotatable collar, having projections 25b and horizontally pivotable about pins in openings 23g, to engage non-rotatable nut 23a interlocked with closure 14. Upon closing the gate, the projections 25b bear upon pistons 26 against springs 41 to effect compression of fluid in passages 33 which, on one side of the valve, connect via bore 37 to circumferential groove 381, sealed between 0-rings 90 and 91, to force cylindrical insert 31X, resiliently seated upon Bellville spring 31a, against gate 14 so that this bears against a seal 34 within a fixed cylindrical insert 31 on the other side. Seal 34 is actuated in similar manner from a piston 26 via connection of circumferentially spaced passages 39 with annular groove 38. In alternative embodiments a seal 34 may similarly be effected from one side of the gate against a non-fluid-actuated, Bellville spring seated, cylindrical insert or, with a valve element having a longitudinally split and sprung apart gate (Fig. 3, not shown), a resilient seal 34 may be applied to each side. In a plug lift valve, Fig. 7, the plug 61 is seated by rotation of the threaded stem 15 which thereafter continues movement to act directly upon piston 26 to effect sealing of rings 34, via passages 37 to annular groove 38. In a rotatable plug valve, Fig. 5, sealing is effected upon rotation of the actuating shaft from which a cam 60 engages piston 26. Sticking upon the valve seats after prolonged closure is avoided by the return springs 41 to pistons 26.
Patent GB-1215594-A (GB)
Title: Projector lens systems for motion picture projectors
Inventor: ROMAN ROBERT JUSTIN
IPC: G03B19/18
Filed: 1967-10-27
Abstract: 1,215,594. Lens mounting. EASTMAN KODAK CO. Oct 27, 1967 [Oct.27, 1966;Aug.10. 1968], No.49049/67. Heading G2J. In a lens mounting for a cine projector, the lens is manually or automatically re-focused when the film "pops" during still projection, the lens barrel 10 being shifted through a distance which is predetermined for that film. Barrel 10 has stepped portions 12, 14, 18, and slides within a sleeve 22 having complementary steps 24, 26, 28 and being itself slidable within a further sleeve 46. Relative movement between barrel 10 and sleeve 22 is limited by screw 32 and slot 30, while screw 53 and slot 51 limits the motion between sleeves 22 and 46. Barrel 10 is biased towards the right-hand end of slot 30, and sleeve 22 together with the barrel is biased to the left of slot 51. The range of motion within 30 and 51 is adjustable for a particular film by means of rotatable ring 58 threaded on the sleeve 46, and bearing a flange-stop 60. Flange 60 is engaged by sleeve 22 in one direction and by step 20 of barrel 10 in the other. In use, the lens is initially focused for motion picture projection and during still projection is refocused by means of lug 40 on barrel 10. Lug (40) is grooved at (44) to receive the end (80) of an actuating pin (82) fixed to a plate (86) pivoting at (88) on the projection housing, as in Fig.2 (not shown). Pin (82) and hence barrel 10 is cammed axially forward or backward by selective engagement with inclined segments (110) or (112), of a spring (104) which may be displaced downwardly by solenoid operated lever (90). The end of lever (90) engages a cranked control lever (124) and may be displaced to bring either segment (110), or (112) above pin (82). In another embodiment, a conventional lens barrel assembly has a control sleeve extension which may have a positioning lug 40.
Patent GB-1240698-A (GB)
Title: Methylenation process and reagent
IPC: C07J1/00
Filed: 1968-10-16
Abstract: 1,240,698. Halo-zinc-methylene reagent; preparation of methylene steroids. G. D. SEARLE & CO. 16 Oct., 1968 [17 Oct., 1967], No. 49081/68. Headings C2J and C2U. A process for the manufacture of a halozinc methylene reagent comprises contacting a zinclead couple with a methylene halide in tetrahydrofuran or an alkylene glycol ether or dialkoxy ether at elevated temperature. Preferably CH 2 Br 2  or CH 2 I 2  and T.H.F. are used. A typical iodozinc methylene tetrahydrofuran reagent crystallized from solution contains 15-25% by weight Zn, 50-65% by weight I and 13-20% by weight C. The reagent may be used to react with a reactive steroidal ketone to produce a methylene steroid. Steroid derivatives which may be used include those of the pregnane, estrane and androstane series. The ketone may be activated by an adjacent hydroxy, acyloxy or oximino function. The ketone group may be in the 3-, 20- or 6-positions. It is stated that 6-methyleneandrostane - 3(#,5α,17# - triol, which may be made from the corresponding 3,17-diacetate formed by this method, may be reacted with CrO 3  to yield the 3,17-dione, hydrogenated using a platinum catalyst to yield the 6α-methyl derivative, and dehydrated with SOCl 2  to yield 6α - methyl androst - 4 - ene - 3,17 - dione, which may then be reduced with NaBH 4  to yield 17#- hydroxy - 6α - methyl androst - 4 - en - 3 - one, a compound having both anabolic and androgenic properties. A number of other methylenesteroid products are also described, and the conversion of 3# - benzyloxy - 5α - hydroxy-6- methylenepregnan - 20 - one 20 - ethylene ketal to the free 20-one, the formation of 6-methylenandrostane - 3#,5α,l7# - triol triacetate from the 3,17-diacetate and the formation of the corresponding tripropionate from the dipropionate.
Patent GB-1235396-A (GB)
Title: Improvements in heat exchanger tubes
IPC: F28F1/36
Filed: 1969-10-06
Abstract: 1,235,396. Finned heat exchange tubes. ESCOA CORP. 6 Oct., 1969 [4 Oct., 1968], No. 49083/69. Heading F4S. In a heat exchange tube with a segmented strip wound helically thereon to form a plurality of substantially identical rectangular fins, each fin has a width of less than 1/5 inch and has a height and thickness in accordance with the formula DT>HW + TW where D is the outside diameter of the tube and H, T and W are respectively the height (from the tube wall), thickness and width of the fin, all measured in inches. The width of the fin may range from 1/5 to 1/10 inches and the thickness may be between À020 and À060 inches. In a preferred example the fins have a width of 0À1562 inches and a thickness of 0À025 inches.
Patent GB-1325909-A (GB)
Title: Purification of p-aminophenol
Inventor: BARON F A
IPC: C07C233/16
Filed: 1970-10-15
Abstract: 1325909 Purification of p-aminophenol HOWARD HALL & CO 15 Oct 1970 [16 Oct 1969] 49132/70 Heading C2C A method for purifying crude p-aminophenol which comprises admixing at least one aromatic amine selected from aniline, toluidine and xylidines with crude p-aminophenol and subsequently separating the p-aminophenol from the mixture.
Patent GB-1485679-A (GB)
Title: Over-voltage protection circuit
IPC: H02H3/20
Filed: 1975-12-03
Abstract: 1485679 Overvoltage protection circuit PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 Dec 1975 49632/75 Heading H2K Overvoltage protection is provided by a glow switch 11 connected in series with a heating  resistor 12 between the lines 8, 9 to be protected, the heating resistor being thermally coupled to a fusible link 3 in the current path of one of the lines. When used to protect the HT supply of a television receiver, the fusible link 3 may be located on either the A.C. or D.C. side of the rectifier 5.
Patent GB-1148393-A (GB)
Title: Improvements in or relating to film editing apparatus
IPC: G02B27/00
Filed: 1966-11-04
Abstract: 1,148,393. Electroluminescence. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 4 Nov., 1966 [5 Nov., 1965; 29 Dec., 1965; 27 Jan., 1966; 2 Aug., 1966], No. 49660/66. Heading C4S. [Also in Division G2] Film editing apparatus comprises means for illuminating a film 2, means for projecting the image thereof on to an image intensifier panel 1 including e.l., p.c. and transparent dielectric layers and means 7 for applying voltages to the panel to produce an image. The film passing between rollers 53 is illuminated by light from a source 4, e.g. a W, X, I or stroboscopic lamp. From the film, light enters a projection lens 24 through a synchronously rotating 8 or 12 sided prism 25 and an iris intensity controller 29 including a p.c. element and is directed on to the panel 1 by mirrors 28. A constant light intensity is maintained whether the film is moving or stationary by a circuit 3 including a variable resistor (32), Fig. 7 (not shown) in series with a diode (31) and contacts (30), (33) actuated when the film is moved. The panel 1 comprises a glass plate 9, a transparent tin oxide electrode 10, a ZnS e.1. layer 11, a Ba TiO 3  reflection layer 12, an opaque carbon black layer 13, a CdS and/or CdSe p.c. layer 15 including a parallel W grid electrode 14, a transparent dielectric layer 16 of polyester film between layers of Si rubber or resin, a transparent electrode 17, and a glass plate 18. Layers 11, 12 and 15 may include binders of urea resin with xylol or butanol with methyl ethyl ketone solvent. The particle size of e.1. and p.c. powders is 5 to 8Á. The voltage supply 7 comprises a stabilized D.C. power supply 8, transistors TR1, TR2 in a push pull circuit, a ferrite core transformer T provided with tapped windings Nc, Nb and a tuned circuit constituted by the transformer secondary winding N 5 , the internal capacitance of the panel and a condenser. Switch 36 and ganged switches SW1, SW 2  allow various voltages to be applied to the panel 1 to provide direct and indirect intensification of the image and varying contrast. Picture contrast can be improved by variable resistors connected in series with the supply.