baber/WOPTO huggingface dataset:
Patent GB-1389092-A (GB)
Title: Mixing apparatus
IPC: G01N35/00
Filed: 1972-10-23
Abstract: 1389092 Mixing apparatus TECHNICON INSTRUMENTS CORP 23 Oct 1972 [13 Dec 1971] 48724/72 Heading B1C Mixing apparatus is provided to mix a volume of combined liquids by activation of magnetic particles in suspension in the liquid volume 22, a first magnet 10 is rotated to rotate in turn the magnetic particles about their own axes, to oppose the centrifugal forces acting on the particles a second magnet 48 is provided so that the magnetic field gradient it generates overlaps that of the first magnet. thus substantial uniformity of distribution of the particles in the liquid is maintained. In the embodiment shown the apparatus is used to measure the Prothrombin Time of a blood plasma sample. A tape 28 has wells 30 thereon and is movable over a support 20 consisting of a non-magnetic strip 24 heated by a coil 23. A mirror 26 is set in the strip 36 denotes a lamp and 38 a photo-cell. Magnet 48 is vertically movable and magnet 10 is rotated by a motor 18. Both magnets are permanent magnets. Each of the wells have an iron oxide material dried therein. In operation blood plasma is dispersed by a probe 32 at a first station whereby the iron particles are suspend in the plasma. The rotating magnetic field promotes mixing of the particles in the plasma rendering it substantially turpid or opaque. After a predetermined time the well is moved to a second station where a probe dispenses a thromboplastic reagent to commence a coagulation reaction. The rotating particles promote mixing of the sample and the reagent. The well is moved to a third station over mirror 26 and the photocell and a timer are activated. As the end point of the coagulation reaction is reached the opaque sample undergoes a sharp and dramatic change due to the collection of the iron oxide particles by one or more fibrin strands formed generally centrally of the mixture; this renders the mixture substantially transparent for detection by photocell 38.
Patent GB-995517-A (GB)
Title: Apparatus for providing ducts through casing in a well
Inventor: CALDWELL LYLE
IPC: E21B43/11
Filed: 1963-12-11
Abstract: 995,517. Wells &c. NATIONAL PETROLEUM CORPORATION Ltd. Dec. 11, 1963, No. 48917/63. Heading E1F. A device for forming a duct through the wall of casing 14 comprises a body 20 adapted to be fixed in the wall, a duct-forming bellows 25 fixed at one end to the body, and a destructable closure 27 fixed to the other end of the body to permit fluid pressure to extend the bellows. A number of devices each having a closure 30 are screwed into the casing which is then lowered into the well 10. Cement 15 followed by a plug 17 is pumped into the well to surround the lower part of the casing. The plug is followed by fluid, preferably acid to remove the closures 30 either by pressure applied to the interior of the casing or chemical action, or by a combination of pressure and chemical action. Pressure is applied to the interior of the casing to extend the devices, and when the cement has set the closures 27 are removed by chemical action to connect the interior of the casing to the oil bearing strata 12. U.S.A. Specification 2,775,304 is referred to.
Patent GB-1280866-A (GB)
Title: Drum grinder particularly for grinding the lining of brake shoes
IPC: B24B19/26
Filed: 1969-10-06
Abstract: 1280866 Grinding WARSZAWSKA WYT WORNIA SAMOCHODOWYCH URZADZEN NAPRAWCZYCH 6 Oct 1969 [7 Oct 1968] 48952/69 Heading B3D A grinder e.g. for brake shoes comprises an electric driving motor 1 whose spindle 12 bears a grinding drum 2. A brake shoe holder 8 is rotatable on a slide 9 by means of a handle 10 provided with a scale, the holder being movable by rotation of the handle 10, through a screw and nut transmission, towards and away from the grinding drum 2. Exhausting means 7 remove dust produced by the grinding operation.
Patent GB-1094464-A (GB)
Title: Improvements in or relating to material feeding apparatus
IPC: G01G11/08
Filed: 1964-12-02
Abstract: 1,094,464. Weighing apparatus. LINKBELT CO. Dec.2, 1964 [Dec. 24, 1963], No. 49080/64. Heading G1W. In an automatic feed weigher, a continuously operating discharge conveyer 1 which is supported on a weighing device 7 and which delivers batches of material is fed with the material from a supply hopper 16 by an intermittently operating feeding conveyer 2. The interruptions of the operation of the feeding conveyer 2 are such that batches of material each of a predetermined weight are successively supported by the discharge conveyer, each interruption being continued for a time to ensure that there is not more than one complete batch weight on the continuously operating discharge conveyer at any one time. The discharge conveyer which is driven by a motor 5 is supported by cantilever springs 3 and 4 mounted on a platform 8 which is supported from a pivot 10 and balanced by weights 11 and a poise 12. Movement of the platform 8 due to a batch weight in the discharge conveyer actuates a switch 21 connected to electrical circuitry which controls the operation of the feeding conveyer 2 driven by a motor 5' and supported on a base 6' by cantilever springs 3', 4'. The electrical circuitry may be arranged to stop the feed of material from the feeding conveyer when the discharge conveyer contains a batch weight and may be provided with an electrical timer which resumes the feed when some or all of this batch weight is discharged from the discharge conveyer. Additionally, the electrical circuitry may be arranged to actuate the discharge conveyer quicker when discharging a batch than when being fed with material and/or may be arranged to adjust the supply from the feeding conveyer in such a way that feed is rapid until the load on the discharge conveyer approaches the batch weight at which time the feed is slowed to a dribble feed. A counter may be provided to register the total number of batches discharged from the weigher and the supply hopper may be provided with a vibrating device 17.
Patent GB-1130076-A (GB)
Title: Improvements in or relating to an adjustable voltage source
Inventor: TERRY JOHN BRIAN
IPC: H03M1/00
Filed: 1966-11-02
Abstract: 1,130,076. D/A converters. MARCONI CO. Ltd. 31 July, 1967 [2 Nov., 1966], No. 49215/66. Heading G4H. As successive current generators 18-12 are connected in parallel to resistor R, the summed currents therefrom produce voltages across terminals 3 which correspond to the break points between successive linear ranges of the non-linear D/A conversion characteristic, and points within each of these linear ranges are achieved by adding an appropriate fraction, from divider D, of the current from the next higher generator I7-I1.
Patent GB-1366380-A (GB)
Title: Process for treating chloridecontaining zinc waste
IPC: C22B3/28
Filed: 1971-10-22
Abstract: 1366380 Removal of chloride from zinc waste DET NORSKE ZINKKOMPANI AS 22 Oct 1971 49285/71 Heading C1A Chloride is removed from zinc waste to make it suitable for use as a raw material in the production of zinc from a sulphate solution, by dissolving the zinc waste in sulphuric acid, and removing chloride ions from the solution by liquid/liquid extraction with an aromatic solvent, e.g. hydrocarbon or mixture of hydrocarbons, containing in solution a tertiary amine, e.g. tri-isooctylamine, which forms a chloride complex soluble in the organic phase. The organic phase may thereafter be freed from chloride and returned to the process.
Patent GB-1411998-A (GB)
Title: Photoconductive imaging member
IPC: G03G5/06
Filed: 1972-10-27
Abstract: 1411998 Electro-photographic member XEROX CORP 27 Oct 1972 [27 Oct 1971] 49695/72 Heading G2C An electro-photographic imaging member comprises a layer of unoriented photo-conductive material capable of photo-generating and injecting holes into a contiguous overlying layer of electronically active material capable of supporting the injection of said holes and transporting them, the electronically active material being selected from 2-phenylanthrasene, a polymer thereof, 3-phenylindole, 3-phenylbenzo [b] furan, 2-phenylbenzo [b] furan, 3-phenylbenzo [b] thiophene, 2-phenylbenzo [b] thiophene, 1-phenylphenanthrene, 2-phenyltetracene, 1-phenylpyrene, 2-phenylpyrene, 1-phenylfluoranthene, 2-phenylfluoranthene, 3-phenylcarbazole, or 4-phenylcarbazole. These compounds are notionally derivable from a parent fused ring compound by ring opening involving removal of a pair of carbon atoms. The photo-conductive layer may comprise particles of e.g. Se, Cd(S,Se), CdS, mixtures thereof, or organic photo-conductors, per se or in a binder which may be electronically active. The photo-conductive layer may be on a conductive support, which may be transparent, a number of known supports being disclosed. Optionally there may be a blocking layer of nylon, aluminium oxide or epoxy resin between the support and photo-conductive layer.
Patent GB-1061447-A (GB)
Title: Dehydrogenation of cycloalkanols
Inventor: SPERBER HEINRICH
IPC: B01J21/00
Filed: 1963-12-17
Abstract: The gas phase dehydrogenation of cycloalkanols to cycloalkanones is conducted at elevated temperature in presence of a catalyst consisting of at least 80% of ZnO which has been obtained by precipitation from a Zn salt with a basic precipitant, and drying and annealing the ZnO, which has a surface of 5-20 m.2/g.  The production of cyclohexanone from cyclohexanol is exemplified; other specified starting materials are 4-methylcyclohexanol, cyclooctanol and cyclododecanol.ALSO:ZnO, intended for use as a dehydrogenation catalyst, is prepared by precipitation from a Zn salt with a basic precipitant, dried and annealed to obtain a surface of 5-20 m2/g. The precipitate may be slowly heated to 400 DEG  C. and annealed at between 400 DEG  and 600 DEG  C. until the desired surface is obtained. An after-treatment with H2 at 300-500 DEG  is optional.ALSO:A dehydrogenation catalyst comprises ZnO which has been prepared by precipitation from a Zn salt with a basic precipitant, dried and annealed to obtain a surface of 5-20 m2/g. Ingredients which may be present in an amount of up to 20% are: pumice or other silicates, Cu compounds, alkali or alkaline earth metal salts of mineral acids and rare earth compounds; the Cu compounds may be e.g. oxide, hydroxide, carbonate or nitrate.  The ZnO is preferably annealed at 400-600 DEG C. and may be treated with H2 at 300-500 DEG before use.  A binding agent such as starch, graphite or stearic acid may be used in making the catalyst.
Patent GB-1525580-A (GB)
Title: Photocrosslinkable compositions
IPC: C08K5/3415
Filed: 1975-12-04
Abstract: 1525580 Photocrosslinkable compositions SIEMENS AG 4 Dec 1975 [6 Dec 1974] 49903/75 Heading C3V [Also in Division G2] Photocrosslinkable compositions which can be exposed and developed to form images comprise (a) a triallyl cyanurate prepolymer (homopolymer or copolymer) and (b) a compound containing at least one maleic imide group. The compositions may also include another polymer (e.g. an unsaturated polyester resin), a photosensitizer or photoinitiator, another unsaturated monomer or oligomer, and an adhesion promotor.
Patent GB-1390148-A (GB)
Title: Retainers for belts or straps
IPC: A41F9/00
Filed: 1973-10-26
Abstract: 1390148 Belt-retainers R ZAOUI 26 Oct 1973 [29 May 1973] 49942/73 Heading A3V [Also in Division B8] An article of clothing such as a skirt, dress or trousers is provided with a plurality of belt-retainers, each retainer comprising at least two adjacent strips 2, 3 of different lengths secured to the article in the region of their ends so as to define apertures of at least two different widths for accommodating belts of different widths. The retainer shown in Fig. 2 has seven alternating strips of two different lengths, a narrow belt as shown being passed through the short strips 3 and either through or over the long strips 2. Various other arrangements of from three to seven strips 2, 3 are disclosed. Instead of having strips of alternating lengths, from two to five strips all of different lengths may be arranged in increasing order of length. In all the above cases the strips are disposed at right angles to the belt and may be placed edge to edge or spaced apart. Fig. 6 shows an alternative embodiment wherein one strip 12 is at right angles to the belt while strips 13, 14 are oblique with respect thereto. The invention is also applicable to strap retainers for articles of luggage.
Patent GB-1131960-A (GB)
Title: Fire protection system of the water-flow type
IPC: A62C35/64
Filed: 1966-11-08
Abstract: 1,131,960. Detection of use of automatic sprinkler system. AMERICAN DISTRICT TELEGRAPH CO. 8 Nov., 1966, No. 50069/66. Heading ASA. The occurrence of a flow of water in a fire protection system is indicated by a water-flow responsive device which produces an output, by (a) delivering said output to an energy absorbing system which has a retarded forward response and a retarded reverse response on cessation of the output (b) continuously measuring the stored energy in the system and (c) giving an alarm signal when the stored energy reaches a predetermined level. The retard mechanism, termed the "non-instantaneously recycling" type, may be pneumatic, hydraulic, thermal or electrical. In particular the energy absorber may be a spring and the response characteristics provided by a doubleacting damper, or it may be a capacitor which is charged and discharged. The water-flow detector may be of the vane type or pressure type.
Patent GB-1010108-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L19/06
Filed: 1963-12-20
Abstract: 1,010,108. Route setting. STANDARD TELEPHONES & CABLES Ltd. Dec. 20, 1963 [Dec. 21, 1962], No. 50404/63. Heading B7N. In a route setting system, in which the control circuits for route elements such as points or crossovers are arranged in control units connected so as to simulate the track network, each route element, e.g. a points, is locked by a locking relay connected to one end of the circuit simulating the required route over the points which is energized via a contact of an auxiliary relay connected to the other end of the circuit. The track layout, Fig. 1, is simulated by the circuit shown which includes contacts of route search relays RS11, RS21, RS22 each associated with one of the network tracks, change-over contacts WP1, WP2 of a points position relay, contacts WKL, WKR of points position supervisory relays and contacts EK21, EK22 of fouling protection supervisory relays. Assume a route from a to # and a proving voltage applied at 5a, relay WLK picks up and locking relay WL is energized via the relevant contacts and via contact WKL1 of relay WLK. If the proving voltage is applied at 5f relay WLK is energized via the relevant circuit contacts and relay WL is picked up as before.
Patent GB-995314-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q7/06
Filed: 1963-12-20
Abstract: 995,314. Aerials. YOSHIO SATO. Dec. 20, 1963 [Sept. 23, 1963], No. 50475/63. Heading H4A. An aerial which may be secured to a vehicle body comprises a casing 1 of mouldable insulating material containing an aerial element in the form of a magnetic core for example of ferrite 2 on which is wound an induction coil 3 and a plurality of spacers 5 of elastic material interposed between the casing 1 and the element, an ornamental plate 6 surrounding the lower end of the casing 1, and a metallic fixing means 9<SP>1</SP> provided with an insulating cap 10 and having therein a screened supply cable including a core conductor and a screen 8<SP>2</SP>. An elastic base member 7 for example of rubber surrounds the base of the aerial and may be secured directly to the vehicle body and this serves to damp vibrations caused by the vehicle and to insulate the plate 6 from the vehicle body. It is stated that in addition to electrical shielding action the plate 6 improves induction in the core 2 by capacitive coupling.
Patent GB-1528958-A (GB)
Title: Stabilized 1,1,1-trichloroethane compositions
IPC: C07C17/00
Filed: 1975-12-09
Abstract: 1528958 Stabilized trichloroethane DOW CHEMICAL CO 9 Dec 1975 [9 Dec 1974] 50512/75 Heading C2C [Also in Division C5] 1,1,1-trichlorethane is stabilized by adding thereto (A) 3À5 to 6 vol. per cent of (a) a mixture of 3-methyl-1-butyn-3-ol and t amyl alcohol wherein the 3-methyl-1-butyn-3-ol is present in at least 1À75 vol. per cent or (b) 3-methyl-1- butyn-3-ol; (B) 0À5 to 2 vol. per cent of nitromethane or a mixture of nitromethane and nitroethane, but in at least 1À0 vol per cent when the amount of (A) (a) is 3À5 vol. per cent. and at least 0À75 vol. per cent when component (A) is (A)(b); and (c) 0À5 to 1 vol. per cent cyclohexane oxide or a non-cyclic C 4-6  alkylene oxide as an acid acceptor, the percentages being based on the total composition. Reference has been directed by the Comptroller to Specification 1,319,899.
Patent GB-1284928-A (GB)
Title: Commutators for dynamoelectric machines
IPC: H01R39/04
Filed: 1969-10-15
Abstract: 1284928 Commutation of dynamoelectric machines WESTINGHOUSE ELECTRIC CORP 15 Oct 1969 [5 Nov 1968] 50662/69 Heading H2A In a dynamoelectric machine cylindrical commutator comprising a plurality of mutually insulated bars 22 secured to a supporting bushing 30, such bars are tightly clamped together by a plurality of bands 36 disposed in recesses 34 in the bar cylindrical radially outer surface 26 at spaced locations along the commutator axis, and to reduce the arching pressure and thereby use smaller bands each bar has in its radially inner surface between two bands at least one recess 24 extending parallel with such axis. The bands may be of cured resin, impregnated glass tape or laminate, and there are provided an insulating sleeve 28 and risers 37.
Patent GB-1113079-A (GB)
Title: Apparatus for attaching articles together
IPC: B65C7/00
Filed: 1966-11-14
Abstract: 1,113,079. Attaching tags by pinning. KIMBALL SYSTEMS Inc. 14 Nov., 1966 [4 Jan., 1966], No. 50949/66. Heading B4C. An apparatus for attaching a tag T to an article comprises a plunger 23 yieldably mounted in a movable plunger 5 which is adapted to be moved a predetermined distance towards an anvil 3 so that the plunger 23 yieldably cooperates with the anvil for holding articles therebetween, and a driver means 31 for inserting a pin 32 into the tag and article. The plunger 5 is actuated by means of a lever 7 actuated by a cam 9 mounted on a rotary shaft 10, the driver 31 being operated by a lever (30, Fig. 2) mounted on the same shaft. The plunger 23 is loaded outwardly by means of a spring 22, the outward distance being limited by a plate 25 held in the movable plunger 5 by means of pins 27; the plunger is formed with a groove 34 for supporting the pin 32. In operation, an article is placed over a support 2 and located against a stop 1. Upon actuation of the machine, a tag is moved over the article from a magazine 20 by means of a cam-actuated slide 18. The plunger 5 is then raised, causing the plunger 23 to contact the article and move it together with the tag against the anvil 3. The driver is not actuated so as to move a pin through the article and tag as shown in Fig. 4, until the point of the pin is bent downwardly by surface 35 on the anvil. A support member 37 having a sloping surface 38 is adapted to bend up a corner of the tag so that the tip of the pin enters partially the thickness of the tag.
Patent GB-1343717-A (GB)
Title: Portable stoves
IPC: F24C3/14
Filed: 1971-11-03
Abstract: 1343717 Gas camping stoves D L HEIN 3 Nov 1971 [19 Nov 1970] 51051/71 Heading F4W A collapsible gas stove 10 comprises a burner 32, gas fitting 22, receptacle 26 and lid 30, the arrangement being such that the lid may be secured to the gas fitting to form a base for the assembled stove and the receptacle may be mounted on the gas fitting to form a support for a cooking pot. After disassembly the burner and gas fitting may be packed into the receptacle and the lid secured thereon. The gas fitting includes a needle 20 for insertion into the rubber valve of a cylinder of liquified petroleum gas, a valve member 24 to control the flow of gas and and a jet 80. The upper end of the upstanding branch 42 of the gas fitting is formed with a threaded neck 40 on which the burner is screwed, the aperture 38 in the receptacle 26 being a loose fit over the neck so that the receptacle is held in abutment with the shoulder of the upstanding branch by screwing down the burner on the neck.
Patent GB-1535764-A (GB)
Title: High-efficiency inverter and emergency lighting system utilizing the same
IPC: H02M7/538
Filed: 1975-12-16
Abstract: 1535764 Supply circuits for discharge lamps GENERAL ELECTRIC CO 16 Dec 1975 51413/75 Heading H2H [Also in Division H3]  In a push-pull tuned circuit transistor inverter the base drive to the transistors is provided at zero collector voltage to cause the circuit to operate in a low loss switching mode. A first transformer T1 couples the output to a load, e.g. a fluorescent lamp circuit and a winding S2 on this transformer provides feedback to a zero crossing detector, Fig. 3 (not shown), in the base control circuit 20. High efficiency switching is achieved by making the base drive proportional to the collector current by means of a second feedback transformer T2 having winding in series on the respective collector circuits. The inverter provides standby power in the event of a mains supply failure and is driven from a battery, the control circuit 20 also including a low battery inhibit circuit and an A.C. inhibit circuit, Fig. 3 (not shown).
Patent GB-1528387-A (GB)
Title: Cylinder head for a liquid-cooled internal combustion engine
IPC: F02F1/42
Filed: 1975-12-16
Abstract: 1528387 Cooling cylinder heads MOTORENUND TURBINEN-UNION FRIEDRICHSHAFEN GmbH 16 Dec 1975 [21 Dec 1974] 51491/75 Heading F1B The coolant flow in an I.C. engine cylinder head is arranged to follow a long flow-path along the base of the head through a first series of chambers 22, 23, 27, 28 and then through a second series 31, arranged above the first series. Various arrangeinents of walls Figs. 3 to 6 (not shown) are cast to guide the flows to cool especially the exhaust valve guides. To promote uniform cooling the sizes of the ducts 25 leading between the induction valve chambers 12, 13 may be smaller than that between the exhaust valve chambers 14, 15. The arrangement of the cavities is such as to render casting simpler, the connecting passageways 20, 21 being machined after casting.