baber/WOPTO huggingface dataset:
Patent GB-1405633-A (GB)
Title: Fuel element end cap for leak determination
IPC: G21C3/02
Filed: 1972-11-15
Abstract: 1405633 Fuel elements JERSEY NUCLEAR CO 15 Nov 1972 [22 Nov 1971] 52671/72 Heading G6C An upper end cap of a reactor fuel element is adapted to house a device capable of detecting changes in the internal pressure caused by leaks in the cladding 208 and comprises a guide section 204 extending from a shoulder section 203 that fits within the cladding 208, to which it is welded at 206. The cavity 220 within the end cap is sealed off from plenum chamber 211 by a flexible diaphragm 202 attached to the wall of shoulder section 203. In an alternative design (Fig. 3B, not shown) the cavity 220 is sealed off by a bellows assembly. The diaphragm 202 is a circular stainless steel disc concavely bowed in the centre, this shape resulting in the diaphragm being forced into the cavity 220 as pressure builds up in the plenum chamber 211. A rod 205 rests on the centre portion of diaphragm 202 and extends up with only a small clearance into the guide section 204. At least a portion of rod 205 is made of ferromagnetic material and the displacement of this rod, which is determined by the response of the diaphragm 202 to the gas pressure in plenum chamber 211, is measured by the fluctuations in an eddy current field. Two coils of wire wrapped round one another to form a tubular body (217) (Fig. 4, not shown) are subjected to alternating current resulting in the production of an eddy current. Leakage is determined by reducing the power output around the fuel element to be tested, placing the eddy current producing device around the end cap, and measuring the change in the eddy current from some standard measurement. From this change, or lack of change, it can be determined if the fuel element is leaking. The standard measurement may be made when there is no pressure within the fuel element, in which case a change from the standard measurement will indicate pressure within the fuel element, i.e. no leakage. Preferably, the power output is reduced for about thirty minutes or more before a measurement is made to allow for gas trapped in the fuel element to leak out.
Patent GB-1277425-A (GB)
Title: Improvements in and relating to the securing of fixing elements
Inventor: MURPHY JOHN MICHAEL
IPC: C08F283/01
Filed: 1968-11-06
Abstract: 1277425 Curable securing compositions EXPLOSIVES & CHEMICAL PRODUCTS Ltd 6 Nov 1969 [6 Nov 1968] 52703/68 Heading C3P [Also in Division F2] A hand kneadable securing composition comprises two portions each having a common contacting surface, the first portion comprising a polymerisable monomer and an unsaturated polyester resin derived from a dihydric alcohol, and an unsaturated dicarboxylic acid (and optionally a saturated dicarboxylic acid), in admixture with one or more inorganic fillers therefore and the second portion comprising a hardener for the resin and monomer, in admixture with one or more inorganic fillers therefore, such that when the two portions are kneaded together, the hardener causes polymerization between the polyester resin and monomer, any reaction between the monomer and polyester prior to kneading, being prevented by the formation of a hard thin layer of cured polyester/ monomer at the interface of the first and second portions. The composition may take the form of, for example, a two layered strip which may be rolled into a coil, or coaxial two component rod, having a core of one of said portions, and a sheath of the other. The composition may be packaged in a hydrocarbon-impermeable material such as a polyamide or polyester film, optionally laminated with metal foil. The first portion may contain an amine accelerator for the curing reaction, which amine may be an integral part of the polyester molecule. The total monomer present is preferably 5-25% by wt. of the composition, the total amount of polyester resin 15-35% by weight and the filler, 35-80% by weight. Examples describe the use of a commercially available unsaturated polyester resin dissolved in styrene together with di-isooctyl maleate tetraallyl sorbitol or diallyl phthalate as additional monomer, the hardener being benzoyl peroxide, and the fillers being dolomite dust, asbestos fibre and finely divided silica, in admixture.
Patent GB-1488500-A (GB)
Title: Centrifugal filter
IPC: B04B7/18
Filed: 1974-12-05
Abstract: 1488500 Centrifugal filter, centrifugal separators AERCOLOGY INC 5 Dec 1974 52732/74 Headings BIT and B2P [Also in Divisions F1 and F4] A filter for removing solid and liquid particles from an air stream comprises a cylindrical housing 10 with an inlet 14, enclosing a rotatable perforate drum 8 having an inlet 16 defined by an end flange 17, 18, a circumferential slot 31 defined between annular flange 7 and reduced end 6 of the housing enabling liquid coalesced by outward passage through the drum to flow into annular chamber 28, from which liquid leaves by outlet 27 while the air passes through vents 29 into outlet chamber 2 and through outlet 35. The main air stream enters chamber 2 radially inwards of flange 7 through a gap which is shown bridged by a secondary filter medium 4. Vents 29 by-pass medium 4 and extend into chamber 28 where their ends are shaped to exclude liquid. The drum may be lined with a primary filter medium 20, possibly comprising two layers of different pore size. The housing may be mounted in various positions on a foot 25 enabling wall or ceiling mounting with the drum axis vertical or horizontal. The drum is shown mounted directly on the shaft of electric motor 32, but a hydraulic motor and a belt or gear drive could be employed. Paper, polyester and stainless steel mesh are suitable as filter medium 20. Housing cover 15 is removable to allow medium 20 to be replaced. Axial blades 13 assist gas flow outwards through the drum and may support medium 20. Outlet 35 may deliver air to an electrostatic precipitator.
Patent GB-1452088-A (GB)
Title: Preparing ammonia-stable y zeolite compositions
IPC: C10G47/18
Filed: 1973-11-14
Abstract: 1452088 Hydrocarbon conversion catalysts; dehydrating gas mixtures UNION OIL CO OF CALIFORNIA 14 Nov 1973 52920/73 Headings B1E and B1L [Also in Divisions Cl and C5] Acid-catalysed hydrocarbon conversions, eg cracking, hydrocracking, isomerisation of nparaffins to isoparaffins, isomerisation of alkyl aromatics and alkylation, are carried out in the presence of a catalyst which is a Y zeolite obtained by calcining an ammonium sodium Y zeolite containing 0.6-5 wt.% of sodium as Na 2 O at 600‹-1650‹F in the presence of at least 0.2 psi of water vapour for a time sufficient to reduce the unit cell size to 24.40-24.64Š, and subjecting the calcined zeolite to ammonium ion exchange to leave less than 1% by wt. of Na 2 O; mixed with at least one of Al 2 O 3 , SiO 2 , MgO, TiO 2 , ZrO 2 , ThO 2 , BeO, Cr 2 O 3  and clays, granulated if desired, and calcined at 600‹-1500‹F to effect deammoniation but not to reduce the unit cell size below 24.40Š; a hydrogenation component may also be present, eg a Group VIA and/or Group VIII metal and/or oxides or sulphides thereof, eg Fe, Co, Ni, Pd, Pt, W and Mo, possibly with others such as Re. The zeolites produced as above, after drying, are of use as dehydrating agents for gaseous mixtures, eg those containing ammonia or volatile amines.
Patent GB-1456636-A (GB)
Title: Conveyor systems
IPC: B61B10/02
Filed: 1972-11-26
Abstract: 1456636 Conveyer systems GEO W KING Ltd 11 April 1974 [16 Feb 1973] 53050/72 Heading B7L In a power and free conveyer system having a main track M along which extends a chain CM with pushers 4 to propel carriers (each including a forward trolley (not shown) and a rearward trolley 2) and a branch track B. branching from the main track M at a transfer region, means 23, 32, 33 actuatable by a a carrier in the transfer region taking the branch track but not by one taking the main track cause movement of a dogoperating member 20 to displace a respective dog 6 on that carrier between an inoperative position as shown and an operative position in which the dog is engageable by a pusher 4. The carrier is driven along the main track M by a main driving dog (not shown) provided on its forward trolley but when this forward trolley enters the branch track B its main dog passes out of the path of the pushers 4, while the trolley contacts a limit switch 32 to operate a solenoid valve 33 thus activating a piston and cylinder device 23 which via linkage 25, 26 causes a platform 20 constituting the dog-operating member to move vertically upwards. This raises dog 6 which acts as a supplementary driving dog when engaged by a pusher 4 to propel the carrier further into the branch track B until its main driving dog can be engaged by another drive chain CB. The means 23, 32, 33 may be replaced by further linkage (35), Figs. 5 and 6 (not shown), a lever (37) of which may be physically engaged by the forward trolley when entering the branch track.
Patent GB-1335698-A (GB)
Title: Oil-cooled generator rotor
IPC: H02K9/19
Filed: 1970-11-09
Abstract: 1335698 Cooling generator rotors BENDIX CORP 9 Nov 1970 [10 Nov 1969] 53279/70 Heading H2A In an oil-cooled generator rotor 1 comprising field windings 6 positioned on laminations 5 mounted on a rotor shaft 2 having in use a coolant oil flowing therein, channels 4 in the laminations register with a plurality of openings 3 in the shaft 2 and communicate with channels 9 in winding supports 8. This communication is provided by channels 11 in moulded alkyd wedge-shaped members 10 which also support the windings. Between the windings 6 are wedges 15 maintained in place by tapered spacers 17, 18 and a retaining band 19. The end windings are retained in place by support members 20, wedge members 21 and retaining bands 23. Oil in the hollow shaft is impelled centrifugally to flow between the laminations and winding, and also to spray, from channels 14, the bore of the stator end windings.
Patent GB-1129610-A (GB)
Title: Catalytic hydrogenation of aromatic polynitro compounds
Inventor: CIMEROL JOSEPH JOHN
IPC: C07C209/36
Filed: 1965-12-15
Abstract: 1,129,610. Hydrogenating aromatic nitro compounds. OLIN MATHIESON CHEMICAL CORP. 15 Dec., 1965, No. 53284/65. Heading C2C. In a continuous process for the liquid phase hydrogenation of an aromatic polynitro compound (to the polyamine) or m-nitrobenzotrifluoride (to m-aminobenzotrifluoride) wherein the nitro compound is fed with H2 to a zone containing an agitated slurry of Ni or Pd catalyst, the zone is kept saturated with H 2 , the nitro compound is fed at a rate equivalent to a catalyst loading of up to 0À15 pound equivs. of NO 2  groups per hour per pound of catalyst, the concentration of the nitro compound is kept below 0À1 weight per cent by continuously withdrawing from the zone a portion of liquid phase (but not the catalyst) of the slurry, and the catalyst concentration in the zone is kept between 2 and 25 weight per cent of the slurry. Specified polynitro compounds are di- and trinitrotoluenes, tetranitrodiphenylethane, 4,4<SP>1</SP>- bis(nitrophenyl)methane and dinitrocresol.
Patent GB-1522770-A (GB)
Title: Foot reatment powder
IPC: A61K36/00
Filed: 1976-12-29
Abstract: 1522770 Foot treatment powder containing montmorillonite M SATO 29 Dec 1976 54197/76 Heading A5B An acidic foot treatment powder contains dry, absorbent montmorillonite in a finely pulverised form and pyroligneous acid. The powder may also contain a proteolytic enzyme, which may be contained in an extract obtained by drying juice from unripe papaya fruit, and lysozyme hydrochloride.
Patent GB-1483249-A (GB)
Title: Combined fluid motor and pumping apparatus primarily for braking systems
IPC: B60T13/40
Filed: 1974-12-18
Abstract: 1483249 Air over hydraulic braking system CATERPILLAR TRACTOR CO 18 Dec 1974 [29 April 1974] 54619/74 Heading F2F In an air over hydraulic braking system an elongated housing 32 has an upper air motor portion 33 and a lower hydraulic portion 34, air being supplied above a piston 56 via a valve 17 from a reservoir 15 and piston 57 connected to piston 56 moving in a cylinder bore 41 to force oil into the brake cylinders as cylinder 56 is forced downward, an annular chamber for defining a reservoir 45 being formed between an upper part 42 and the housing 32 and the reservoir 45 being replenished from an hydraulic circuit 24, for power tools, which is supplied with fluid from a reservoir 23 by an engine-driven pump 22. The piston device is biased upwardly by a spring 69. A sel 62 for piston 57 acts as a one-way valve to permit make-up fluid to flow to the pump chamber 41 on the return stroke via passages 49, 76 and grooves 74 in the piston.
Patent GB-561840-A (GB)
Abstract: 561,840. Drying oils ; paints. POTTS, H. E. (Distillation Products, Inc.). Sept. 19, 1942, No. 13237. [Classes 91 and 95] In the manufacture of a paint, lacquer, or varnish, a fish oil is distilled under high vacuum unobstructed path conditions to remove 40 to 50 per cent or more and the unbodied residual oil is incorporated with a paint or varnish ingredient, such as a solvent, pigment, or drier. The distillate may be worked up to obtain vitamins &c. Fish oils of iodine number over 120 are preferred ; menhaden and sardine oil are specified. In one example, residual oils from menhaden oil are mixed with a lead, manganese and cobalt drier or with a lead and cobalt drier. In another example, residual oil from sardine oil is made into a house paint with ingredients comprising titanium dioxide, basic carbonate of white lead, zinc oxide, extender, thinner, and a lead, manganese and cobalt drier. Specifications 485,614 and 548,257 are referred to.
Patent GB-1360248-A (GB)
Title: Support for an automatic central buffer coupling arm of a rail  vehicle
IPC: B61G7/00
Filed: 1971-12-03
Abstract: 1360248 Automatic central buffer coupling arm supports GERMANY MINISTRY OF TRANSPORT 3 Dec 1971 56241/71 Heading B7T [Also in Division F2] A support for absorbing vertical loading of an automatic central buffer coupling arm 2 on a rail vehicle 1 comprises a body 6 of synthetic plastics or elastomeric material, e.g. foamed plastics, a pair of coaxial support rods 7 embedded in the body 6 such that each has one end inside and one end outside the body, the two rod ends inside the body being spaced from one another and having enlarged heads 8 of generally cylindrical form, and two struts 5 within the body 6, the outside end of one rod 7 being secured in use to the underside of the arm 2 and the outside end of the other rod 7 being secured to a holder 3 which in use is secured to the vehicle 1 beneath the arm 2, whereby in use, when the arm 2 is loaded vertically downwardly, the heads 8 move toward one another and the body 6 is distorted to flex or bow the struts 5. The struts 5 may be parallel to the rods 7 as shown or may be disposed so as to diverge away from the rods in the direction towards the end of the body 6 nearest the holder 3. The holder 3 may be made of a resilient synthetic plastics or elastomeric material.
Patent GB-1309055-A (GB)
Title: Electronic position transducer for control members
IPC: H02P7/285
Filed: 1971-12-03
Abstract: 1309055 Transducers FABBRICA ITALIANA MAGNETI MARELLI SpA 3 Dec 1971 [5 Dec 1970] 56303/71 Heading G1N A differential transformer TD has its core N linked to foot pedals P1, P2 to produce a desired output voltage E. The primary winding P is energized by an oscillator OS incorporating a transistor T1 which is normally blocked by the voltage drop across resistor R1, due to the collector current of transistor T2. When an output E is required, pedal P1 or P2 is operated, opening switch I 1  or I 2  and allowing capacitor C5 to discharge through R6 and T2. As the base voltage of T2 falls its collector current falls, to open transistor T1 progressively, whereby oscillator OS is activated gradually and only after a predetermined delay following operation of the pedal. A network AS may be connected across C5, selectively restricting the base voltage on T2 to that of a voltage source 3, thus limiting the output voltage E.
Patent GB-1192374-A (GB)
Title: Improvements in or relating to Data Processing Devices
Inventor: THREADGOLD RONALD
IPC: G06F9/28
Filed: 1966-06-02
Abstract: 1,192,374. Data processing device; microprogramme control. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 19 May, 1967 [2 June, 1966], No. 56468/69. Divided out of 1,192,371. Heading G4A. The disclosure is the same as that in the parent Specification but the claims are directed to the two pass timing arrangements for timing the instruction cycles.
Patent GB-1255332-A (GB)
Title: Photoelectronic switching circuit
Inventor: REICH MICHAEL
IPC: G03B7/083
Filed: 1968-11-28
Abstract: 1,255,332. Transistor switching circuits. EASTMAN KODAK CO. 28 Nov., 1968 [1 Dec., 1967], No. 56526/69. Heading H3T. [Also in Divisions G1 and G2]  A photo-electric switching circuit comprises a CdS photoresistor 3 common to two bridge networks one made up of the photoresistor plus resistors 4, 5 and 6 and the other of the photoresistor plus resistors 8, 9 and 10. The variable resistors are adjusted so that only when the light intensity illuminating resistor 2 is between two predetermined values are the bridges balanced, resulting in transistors 7 and 10 both being non-conductive, allowing transistor 11 to conduct and lamp 13 to be lit. If the intensity is too high, transistor 10 conducts and prevents transistor from conducting. When the intensity drops below a certain level, transistor 7 conducts and again the lamp 13 is extinguished.  The circuit may form a lighting condition indicator in a camera, the lamp 13 being mounted in the viewfinder. Modifications include PNP instead of NPN transistors; the use of vacuum or gas discharge values instead of transistors ; a charged capacitor instead of battery a; a slide-actuating solenoid instead of lamp 13.
Patent GB-1336295-A (GB)
Title: Photographic compositions
IPC: G03C1/10
Filed: 1970-11-30
Abstract: 1336295 Polymers containing sulphur atoms and bicyclic rings EASTMAN KODAK CO 30 Nov 1970 [28 Nov 1969] 56795/70 Heading C3R [Also in Divisions G2 and C2] Condensation polymers are described containing a [2.2.1]-bicyclic ring directly attached to a sulphur atom which may form a thio ether group, a sulphoxide group or a sulphone group. Specific polymers are listed (nos. 1-12, 14, 34-37, 39-52 and 54) and include those of the formulae Copoly - [bicycio - [2.2.1] - 5 - heptene - 2:3- dicarboxylic anhydride - bis - (2 - mercaptoethyl)sulphide - hexamethylene diamine] (Formula 9) is prepared by reacting bicyclo- [2.2.1] - 3 - heptene - 2:3 - dicarboxylic anhydride with bis-(2-mercaptoethyl)sulphide and then with hexamethylene diamine. Copoly- [1 : 2 - bis - (2 - mercaptoethoxy)ethanedodecahydro - 1 : 4 : 5 : 8 - dimethanoanthraquinonylene-2 : 6(or 7)] (Formula 14) is made by reacting 1 : 4 : 4a : 5 : 8 : 8a : 9a : 10aoctahydro - 1 : 4 : 5 : 8 - dimethano - 9 : 10- anthraquinone with 1 : 2 - bis - (2 - mercaptoethoxy)ethene. Polymer of Formula 41 is made by reacting bicyclo-[2.2.1]-2-methyl-3 : 3-dihydroxymethyl - 5 - heptene with mercaptosuccinic acid following by heating with an esterification catalyst. Polymer of Formula 45 is made by reacting 3-methyl bicyclo-[2.2.1]- 5 - heptene - 2 - ylmethyl 3 - methyl bicyclo- [2.2.1] - 5 - heptene - 2 - carboxylate and hydrogen sulphide with irradiation. Polymer of Formula 51 is made by reacting 5 : 5<SP>1</SP> (or 5 : 6<SP>1</SP>) - thio bis - (bicyclo - [2.2.1] heptane- 2 : 3-dicarboxylic acid anhydride) or its dimethyl half-ester with 4 : 4<SP>1</SP>-methylene dianiline.
Patent GB-1432560-A (GB)
IPC: B29C48/05
Filed: 1972-12-11
Abstract: 1432560 Strippable extruded cable layer BICC Ltd 10 Dec 1973 [11 Dec 1972] 56964/72 Heading B5A [Also in Division H1] In between the extruded dielectric and a conductive or semi-conductive dielectric screen of a cable core is interposed a mechanically weak intermediate layer of rubber or plastics insulating material bonded to both the dielectric and the screen such that, when stripping the screen from the core cover part of its length for jointing purposes, separation later place within the intermediate layer leaving a portion of that layer on the extruded dielectric. The dielectric and screen are of a rubber or plastics material and may be based on such compounds as ethylene-propylene rubber or cross-linked polyethylene. The intermediate layer may be an extrusion of, for example, an ethylene-propylene rubber compound containing a copolymer of ethylene-vinyl acetate and/or a filler. Extrusion process.-A conductor C passes through an extrusion head 1 where a conductor screen of, for example, a semi-conducting ethylene-propylene rubber based compound, and the dielectric, are applied simultaneously. These layers are then cured in treatment chamber 2 and an in-line scanner at 3 locates any voids in the dielectric. The intermediate layer is applied at 4 and the dielectric screen by extruder 5. The treatment chamber 6 cures the dielectric screen and because of diffusion effects also partially cures the intermediate layer. In cases where in-line scanning is not required the first curing step at 2 may be omitted and all layers cured at 6
Patent GB-1291450-A (GB)
Title: Method of making barrier layer devices and devices so made
Inventor: RAE ALFRED URQUHART MAC
IPC: H01L21/76
Filed: 1969-11-21
Abstract: 1291450 Semi-conductor devices WESTERN ELECTRIC CO Inc 21 Nov 1969 [22 Nov 1968] 56973/69 Heading H1K An insulating guard ring 12 defining the periphery of a planar rectifying barrier in a semiconductor device is formed by bombardment with ions to a depth beyond that of the rectifying barrier so as to convert the bombarded semi-conductor material to insulating material. Suitable ions for use with Si, Ga or III-V compounds are oxygen, nitrogen, carbon or mixtures thereof. The barrier may be a metal/  semi-conductor contact (e.g. Al on Si, Pd on Ge or Au on GaAs) or a contact between Si and a silicide of a metal such as Ni, Ti, Zr, Hf or a Pt-group metal, where the silicide is produced by heating after depositing a layer of the appropriate metal. In the latter case a localized area of the silicide (52), Fig. 5 (not shown), is then covered by a masking layer (54) of metal such as Al, Ti, Zr, Pt-Ti-Au or Cr-Au, and the entire surface is subjected to bombardment, e.g. with oxygen ions, to form an oxide region extending to a level (55) in the Si body deeper than the remaining silicide/Si interface (53). The surface of the metal layer (54) is similarly converted to an oxide. In the embodiment shown the rectifying barrier is a planar PN junction produced by epitaxial growth from the gas phase, sputtering or liquid regrowth or by diffusion or ion implantation. The insulating guard ring 12 is then formed by ion implantation. Optionally a further insulating ring 23 may be formed simultaneously within the ring 12, and further implantation of N-type impurities such as P or As may then be effected in the central area enclosed by the ring 23 to allow electrical contact 25 to be made to the lower semi-conductor region 11 from the upper surface of the device.
Patent GB-1108224-A (GB)
Title: Pulling over and lasting machine
IPC: A43D21/12
Filed: 1966-07-01
Abstract: The subject-matter of this Specification forms part of that described in Specification 1,108,221, but the claims differ.