baber/WOPTO huggingface dataset:
Patent GB-1527082-A (GB)
Title: Monitoring for incipient electrode failure in joule effect heating
IPC: C03B5/03
Filed: 1975-10-14
Abstract: 1527082 Measuring resistance OWENSCORNING FIBERGLAS CORP 14 Oct 1975 [15 Oct 1974] 42042/75 Heading G1U In a process for heating glass by the Joule effect, incipient electrode failure is detected by monitoring voltage across and current flowing two pairs of electrodes, an indication of resistance derived therefrom being provided. Heating of the molten glass 18 is achieved by pulses derived from controlled switching 28 of paralleled thyristors 26, 27 in the supply paths between supply transformers 29 and electrode pairs with single 12-15 or multi-elements 16. Current and voltage to each electrode pair is sequentially monitored under computer 51 control via de-coder 68, relays R1-R6 and their contacts. Conventional R.M.S. converters 48, 61 apply the true R.M.S. voltage and current values to the computer 51 which computes the resistance, compares it to a predetermined value, which may be periodically updated to account for normal acceptable ageing, and operates a display. The display incorporates an electrode identification and alarm indication, operated when the resistance of the electrode pair exceeds the predetermined value, indicating incipient failure.
Patent GB-869499-A (GB)
Title: Improvements in electromagnetic relay energisation indicators
IPC: G08B5/24
Filed: 1959-12-11
Abstract: 869,499. Indicators for switches. WESTING- HOUSE AIR BRAKE CO. Dec. 11, 1959 [Dec. 12, 1958], No. 42148/59. Class 38 (5) [Also in Groups XXXVI and XXXVIII] A device for indicating the energization of an electromagnetic relay comprises a housing 2a, adapted to be a sliding fit on the relay casing, in which is pivoted a magnetic steel U-shaped member 4 spring-biased to the position shown to display a green area through a window 3. Upon energization of the relay, the leakage flux attracts the member 4 to its other position to display a red area through the window 3. Alternatively, or in addition, the pivoted member 4 may carry a lug 18 of insulating material in order to close contacts 13, 14 to indicate electrically the state of energization of the relay. The indication may take the form of a mark on a pen recorder, and by employing a number of indicators the operating sequence of a number of relays may be recorded.
Patent GB-890569-A (GB)
Title: Improvements in and relating to fertilizers
Inventor: LOW ALFRED JAMES
IPC: C05B1/02
Filed: 1958-12-31
Abstract: A fertilizer comprises urea and an acid-reacting substance containing in the molecule at least one hydrogen atom replaceable by ammonia in a proportion of at leas 0,2 mole equivalent of said substance per mole of urea.  Preferred acid substances are mono-ammonium dihydrogen phosphate, mono-potassium dihydrogen phosphate, mono-calcium phosphate, triple superphosphate, superphosphate, mono-sodium dihydrogen phosphate, ammonium hydrogen sulphate, potassium hydrogen sulphate, and sodium hydrogen sulphate.  With a mixed loam of pH 6,7 at least 0,21 mole equivalent of acid substance is required per mol of urea and in a sandy soil of pH 5,7 abut twice as much acid additive is required.  Other compounds which may be added are ammonium sulphate, potassium sulphate and potassium chloride.  The fertilisers may be made by wet granulation in a rotary drum, pan or paddle type mixer and the mass compacted by passing through rolls capable of applying 400 to 25,000 pounds per linear inch to produce sheet like aggregates of about 0,1 inch thickness which can be broken down to free flowing granules.  The anti-caking properties may be enhanced by coating with up to 4% by weight of an inert powder such as china clay applied with or without an adhesive such as oil.  The fertilisers are particularly suitable for cereals, grasslands and potatoes.  The biuret content of the urea should preferably not exceed 1,5%.  Specifications 360,147, p  807,107, 816,573 and 822,969 are referred to.
Patent GB-1433583-A (GB)
Title: Materials handling device
IPC: B65D19/20
Filed: 1974-09-27
Abstract: 1433583 Load handling pallets; portable containers RUBSTEEL PRODUKTIONS AB 27 Sept 1974 [28 Sept 1973] 42181/74 Headings B8H and B8D A cylindrical box pallet comprises a cylindrical wall 10 of laminated paper, a backing ring 11 of similar material secured by clamping or riveting to the internal, lower edge of the wall and a bottom 12 and a top 13. Recesses 15, 16 are cut in the wall and backing ring to receive the tines of a lifting truck and reinforcing ribs 17-20 are secured to the bottom and the backing ring. In an alternative embodiment Fig. 3 (not shown) the ribs 17, 18 are omitted and additional ribs (23-28) are provided. The bottom 12, backing ring 11 and the reinforcements may be integrally moulded in wood fibre chips.
Patent GB-1347815-A (GB)
Title: Conveyor systems
IPC: B61C11/00
Filed: 1972-09-12
Abstract: 1347815 Conveyers JERVIS B WEBB CO 12 Sept 1972 [13 Sept 1971] 42200/72 Heading B7L A conveyer system comprises a plurality of carriers, as 10, movable along a carrier track in the form of opposed channels 36, each carrier having a driving dog 22 engageable by one of a number of pushers 32 connected to an endless driven chain 33 supported by an adjacent track 35, when the two tracks are vertically aligned, (in Fig. 4 the track 35 is laterally displaced at a position before the chain 33 takes up the drive to the carriers), an electric motor driven tractor 42 being provided for driving the carrier 10 along a part of the carrier track, the tractor 42 running on the channels 36 and having coupling means 44 capable of coupling engagement with an element 46 on the carrier 10, the system also including positions at which the propulsion of a carrier is transferable between a chain pusher 32 and the tractor, this transfer being effected by a feeder 62 in the form of a fluid pressure cylinder 65 which reciprocates a trolley 64 along a track formed by a pair of channel members 66 disposed above the carrier track, the trolley 64 having a pivotally mounted pusher 63 engageable with an auxiliary driving dog 24 on the carrier 10. The system is described as being used in the transfer of carriers from a loading loop wherein the carriers are driven by chain pushers to an unloading loop where they are similarly propelled, the movement on the track between the loops being effected by the tractor 42. Each carrier comprises a forward trolley 20 and a rearward trolley 21, the main driving dog 22 being movable to a non-driving position by operation of a release lever 26 engageable by a cam 28 at the rear of the preceding trolley 21. A holdback dog 23 is also provided engageable by a stop plate 30 which plate also actuates the release lever 26. The coupling means 44 on the tractor 42 comprises a pivotally mounted element 47 having a hook portion 54. The hook portion 54 may be raised clear of the element 46 on the carrier 10 by a cam 57 where it is desired to disconnect the drive from the tractor 42. Conductor bars 60 on the track may be used to supply power to the tractor by way of collectors 61 thereon. In an alternative embodiment the tractor pulls a series of tow bar connected pushers along a track parallel to the carrier track so that several carriers may be moved simultaneously.
Patent GB-1193156-A (GB)
Title: Device for Continuously Pressure Treating Belt-like Articles
Inventor: NAGATO SONOSUKE
IPC: B29C43/22
Filed: 1967-09-15
Abstract: 1,193,156. Vulcanizing belts. ASHIHARA TEKKOSHO K.K. 15 Sept., 1967, No. 42258/67. Heading C3E. A device for vulcanizing rubber belts comprises a rotary drum 4 against the periphery of which a part of a moving endless belt 5 is urged by means of at least two separate tensioning drums 1, 2, 3 over which the endless belt passes under tension and so arranged that a belt-like article 26 can be continuously fed between the rotary drum and the endless belt, and a mechanism including a presser plate 14 which urges the endless belt towards the rotary drum at the same time travelling with the endless belt and which at the end of its travel is released and returned to the starting position for a new operation. Both the rotary drum and the pressure-plate can be provided with channels for heating fluid.
Patent GB-1327479-A (GB)
Title: Incandescent lamp
IPC: H01K1/50
Filed: 1970-09-03
Abstract: 1327479 Electric incandescent lamp EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG 3 Sept 1970 [3 Sept 1969] 42293/70 Heading H1F An electric incandescent lamp comprises an inert gas and a mixture of halogenated hydrocarbons, 70-99 vol. per cent of the mixture containing iodine, the rest containing at least one of chlorine, bromine and fluorine. The preferred hydrocarbons are CHI 3 , CHBr 3 , CHCl 3 , C 10  F 8  or C 10  F 18 . The lamp may have a tungsten filament containing small quantities of Fe, Na, K, Al, Si, Ni, Cr, Mo and Ca while the lamp envelope may be of quartz. The inert gas is preferably krypton.
Patent GB-1517800-A (GB)
Title: Connecting reinforcing bars in concrete bodies
IPC: E04C5/16
Filed: 1975-10-15
Abstract: 1517800 Connecting concrete reinforcing bars C C L SYSTEMS Ltd 16 Dec 1976 [15 Oct 1975] 42357/75 Heading E1W Reinforcing bars 1 in a concrete structure having an access hole therein have partially threaded sleeves 3 secured to their adjacent ends by radial compression, the ends being connected together by means of an intermediate bar 2' housing partially threaded sleeves 3' secured on each end by radial compression and threaded studs 7.
Patent GB-1030391-A (GB)
Title: Improvements in or relating to intermediates of use in the production of cephalosporins
Inventor: GRAHAM WILLIAM
IPC: C07C323/22
Filed: 1961-11-29
Abstract: Novel compounds of the Formula V wherein R1 represents an aryl group, R2 represents an aliphatic, araliphatic, aryl or nitrile group which can be replaced by hydrogen, R3 represents an alkyl group and R4 represents a hydrogen atom or an alkyl or aralky group may be prepared by converting a compound of the Formula III into a glycidyl ether of the Formula IV and reacting said glycidyl ether with ammonia, a primary amine or sodium azide followed by reduction. Aminoalcohols of the Formula VA are formed as by-products in this process. <FORM:1030391/C2/1> <FORM:1030391/C2/2> <FORM:1030391/C2/3> <FORM:1030391/C2/4> <FORM:1030391/C2/5> <FORM:1030391/C2/6> <FORM:1030391/C2/7> <FORM:1030391/C2/8>  Compounds of the Formula IV may be prepared by reacting compounds of the Formula II with a monohaloacetic acid ester.  Compounds of the Formula III are prepared by reacting a compound of the Formula II with a dihaloacetic ester of the Formula VI in the presence of zinc amalgam or magnesium amalgam. Compounds of the Formula II are prepared by reacting an a -haloketone of the Formula VIII, wherein X represents a halogen atom, with a compound of the formula R2-S-H or a metal derivative thereof.  a -Halo-ketones of the Formula VIII are prepared by halogenating compounds of the formula IX.  Keto esters of the Formula IX are prepared by the reaction of monobromoacetone with an alkali metal salt of an acid of the formula R1.COOH.  The amino acid of the Formula I wherein R1111 represents a hydrogen atom is prepared by hydrolysis of compounds of the Formula V.
Patent GB-1179708-A (GB)
Title: A Process for Improving Mask-Screen Registration in Cathode Ray Tubes
Inventor: KAUTZ GEORGE R
IPC: H01J29/07
Filed: 1967-09-20
Abstract: 1,179,708. Colour television tubes. SYLVANIA ELECTRIC PRODUCTS Inc. 20 Sept., 1967 [20 Sept., 1966], No. 42882/67. Addition to 1,055,604. Heading H1D. A method of manufacture of a colour television tube as in Specification 1,055,604, wherein a front panel including a screen is baked to stabilize its dimensions before the deposition of the phosphor dots on the screen, is characterized in that a shadow mask and its resilient supports are also baked, preferably by being secured to the panel before the panel baking process, so that this process also stabilizes and stress relieves the shadow mask and the resilient supports. The baking process may be carried out on a conveyerized air atmosphere lehr at a a temperature not exceeding 470‹ C. for at least one hour. A non-oxidizing shield may be placed adjacent the open side of the mask-panel assembly to prevent heavy oxidation of the metallic parts of the mask during baking, or alternatively a second mask-panel assembly may be used as a shield, the two assemblies being placed with their open sides adjacent.
Patent GB-1406195-A (GB)
Title: Camera shutter
IPC: G03B9/18
Filed: 1973-09-13
Abstract: 1406195 Shutter mechanism SEIKO KOKI KK 13 Sept 1973 [14 Sept 1972] 43049/73 Addition to 1381694 Heading G2A A shutter mechanism comprises spring-biased window-opening and window-closing groups of blades situated between apertured plates, each group comprising a slit-forming blade, which forms a parallelogram linkage with main and supplementary operating levers, and further blades having a common pivot with the main or supplementary operating lever and operating slots engaged by a pin associated with the main operating lever (when the supplementary operating lever and the further blades have a common pivot) or the supplementary operating lever (when the main operating lever and the further blades have a common pivot). A group of window-opening blades (shown closed) comprises a slit-forming blade 3a, which forms a parallelogram linkage with a spring-biased main operating lever 4 having a pivot 4a and a supplementary operating lever 5 having a pivot 5a, and further blades 3b-e, which are pivoted at pivot 5a and are operated by an operating pin 4c secured to lever 4 and passing through slots in blades 3b-e. A group of window-closing blades 6a-e (shown open) are constructed similarly. In a modification, Fig. 5, operating pin 4c is secured to further lever 9 which is situated outside plate 2, lever 9 being spring- biased instead of lever 4 and pin 4c passing through lever 6 for operation thereof.
Patent GB-1161180-A (GB)
Title: Improvements in or relating to Adjustable Electrical Resistors.
IPC: H01C10/24
Filed: 1967-09-21
Abstract: 1,161,180. Variable resistors. TRW Inc. 21 Sept., 1967 [28 Sept., 1966], No. 43099/67. Heading H1S. An adjustable resistor comprises a tubular insulating casing 12 enclosing a resistance element (film) 14 carried on a substrate rotatable relative to the casing, a contact 16 slidably engaging the resistance element film and moving therealong upon relative rotation of the casing and element, the contact being connected to one of the end terminal wires 26b by conductive means within the casing. The substrate may be of plastics or ceramic material and the resistive film of carbon, a metal, a metal alloy or mixture above or in a glass or plastics binder. In the Fig. 1 arrangement this connection to 26b is effected through spring fingers 54 on contact 16 which, on relative rotation of the casing and element, slide in a groove 38 in contact with a conductive strip 42 therein, this movement being produced by a projection 50 on the contact 16 which engages a helical groove in the element. In another arrangement (Fig. 3, not shown), a helical groove is provided in the inner surface of the casing, a contact arrangement rotatable with the resistance element having a rib slidably fitting in this groove and having contacts which interconnect a variable point on the resistance element film with a conductive strip on the element substrate.
Patent GB-1514276-A (GB)
Title: Fabric-softening compositions
IPC: C11D1/40
Filed: 1975-10-22
Abstract: 1514276 Softening composition UNILEVER Ltd 20 Oct 1976 [22 Oct 1975] 43336/75 Heading D1P [Also in Division C5] A detergent-compatible fabric-softening composition comprises a tertiary amine having an isoelectric point of from 8.3 to 9.8 and of the structure RR<SP>1</SP>R<SP>2</SP>N where R is an alkyl group having from 1 to 6 carbon atoms and R<SP>1</SP> and R<SP>2</SP> are primary linear alkyl or alkenyl groups having from 10 to 26 carbon atoms, and a diluent. The diluent is water or a water-soluble non-surface-active salt. Where the diluent is water the composition is liquid and comprises from 2 to 50% of the amine dispersed in from 98 to 50% of water, by weight of the total amount of amine and water, and where the diluent is a water-soluble non-surface-active salt, the composition is solid and comprises from 6.3 to 90% of the amine and from 10 to 93.7% of the salt by weight of the composition. In the preferred amines, R<SP>1</SP> and R<SP>2</SP> are both the same, e.g hydrogenated tallow, coco, lauryl, myristyl, cetyl, marganyl, decyl, arachidyl, stearyl, docosyl or tetracosyl. R is preferably methyl but may be ethyl, propyl or butyl. The compositions may be prepared by dispersing the amine in water in the presence of an emulsifier, or by admixing the amine with the non-surface active salt. The emulsifier is preferably anionic, e.g. a salt of an organic acid, having a hydrophobic group which is similar in structure to the groups R<SP>1</SP> and R<SP>2</SP> in the amine. The non-surface active salt may be an organic or inorganic detergency builder salt, e.g. sodium tripolyphosphate or EDTA a non- builder salt e.g. sodium sulphate or a perborate or percarbonate bleach. An anionic detergent e.g. an alkylbenzene sulphonate or a sodium or potassium soap, may also be present. In use an anionic detergent wash liquor containing the amine composition is prepared having a pH above the isoelectric point of the amine, fabric is washed with the liquor, and the pH of the liquor in contact with the fabric is then reduced to below the isoelectric point of the amine to attach the latter to the fabric surface. Preferably the pH reduction is effected by introducing rinse water of lower pH than the wash liquor. Preferably 0.0005 to 0.01 parts of the amine per part by weight of the fabric, is deposited. The aqueous dispersions have storage stability. The solid mixtures incorporating anionic surfacts may be used as detergents. Cotton towelling may be treated.
Patent GB-1369641-A (GB)
Title: Method for the fabrication of self-supporting roof and wall  coverings
IPC: B29C44/32
Filed: 1971-09-17
Abstract: 1369641 Laminates H SULLHOFER 17 Sept 1971 [17 Sept 1970] 43580/71 Heading B5N A self-supporting panel, e.g. for roof or wall coverings, comprising an insulating core of hard plastics foam, e.g. polyurethane foam having embedded therein a reinforcing element, e.g. a corrugated or smooth strip of concrete, asbestos, cement, wood, metal or plastics material, covered on at least one surface with a covering foil, e.g. of paper or plastics material, is produced by drawing covering sheets 18 and 19 over endless conveyer belts 11 and 14 supported by plates and driven by rollers 10 and 12, and 15 respectively, feeding reinforcing element 24 between the conveyer belts and supplying foam forming reaction mixture by means of spray nozzles 22 and 23, the covering sheets and reinforcing element being advanced with the foam at a speed corresponding to the reaction speed of the reaction components. Spray nozzles 22 and 23 are attached on the free ends 25 and 26 of tubes 27 and 28, the other ends 29 and 30 of which are attached on a cross-bar 31 reciprocatingly movable in the direction of double arrow 32. Spray nozzles 22 and 23 are connected with the free ends of flexible hose pipes 33 and 34 led through tubes 27 and 28 and fed with foam forming reaction mixture from pumps 37, 38 and 39, 40 respectively.
Patent GB-1304816-A (GB)
IPC: H01H51/28
Filed: 1971-09-20
Abstract: 1304816 Electromagnetic relay; magnetic switches PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 Sept 1971 [23 Sept 1970] 43715/71 Heading H1N A bi-stable magnetic contact assembly comprises a ball armature contact 5 which is movable between two stable switching positions where it is retained by the flux of at least one permanent magnet, the flux of a first pair of permanent magnet poles corresponding to one switching position passing through a first magnetic contact strip 7 and an armature supporting strip 11 which is parallel to the first strip and is common to both switching positions and the flux of a second pair of permanent magnet poles 3 corresponding to the second switching position passing through a second magnetic contact strip 9 colinear with the first strip 7 and the armature supporting strip, the pairs of permanent magnet poles being polarized in the same direction. The contact strips and permanent magnets are mounted in a sealed envelope 17. Lateral movement of the armature 5 is limited by a U-shaped member 27. A plurality of contact assemblies with a common annular magnet providing the pairs of poles may be actuated by energizing coil 29 or a movable magnet. The contact faces of contact strips 7 and 9 may be chamfered. The ball armature has a mercury layer.
Patent GB-1494014-A (GB)
Title: Focal plane shutter
IPC: G03B9/36
Filed: 1975-10-24
Abstract: 1494014 Camera shutter FRANKE & HEIDECKE GmbH [trading as ROLLEI-WERKE FRANKE & HEIDECKE] 24 Oct 1975 [18 Dec 1974] 43825/75 Heading G2A A focal plane shutter for an SLR camera comprises a pair of opening flaps 2, 3 hinged together at 8, hinged to one side of the film gate 1 at 6 and hinged at 16 to a rotatable drive arm 14, so that rotation of arm 14 folds or unfolds the flaps with the free end 11 thereof moving parallel to the focal plane. The shutter has a similarly constructed pair of closing flaps 4, 5 hinged to the other side of the gate 1 at 7. As shown, the flaps occupy the space behind the reflex mirror 18. After exposure, the ends 10, 11 of flaps 3, 4 engage and remain engaged during re-cocking to block light entry.
Patent GB-1359499-A (GB)
Title: Optical systems
IPC: G02B27/00
Filed: 1972-10-11
Abstract: 1359499 Optical system PILKINGTON PE Ltd 11 Oct 1972 [23 Sept 1971] 44316/71 Heading G2J An optical system, e.g. for use in a head-up display system, comprises a pair of opposed parallel surfaces 13, 14 for transmitting light by internal reflection, means, e.g. a fibre optic bundle 17, for introducing light for transmission, at least one surface 19, 20 which is at least partially reflecting, located between and inclined to the surfaces 13, 14 to reflect at least a portion of the light so that it emerges from one of the surfaces 14, and means e.g. a lens 23 for projecting further light through the surfaces 13, 14 to emerge in the same direction 20, 21 as the emergent reflected light. In the embodiment illustrated the surface 20 is suitably masked to provide an illuminated object of the form in Fig. 1 (not shown) and the lens 23 provides an illuminated object of the form in Fig.2 (not shown), the light for the bundle 17 and lens 23 coming from the same source 15, or from different sources. Movement of the objects is achieved by moving the plate 12 defining the surfaces 13, 14, and the bundle 24 supplying light to the lens 23. The plate 12 is a composite plate, see Fig. 5, (not shown), and may be curved, e.g. cylindrical or spherical, see Fig.4 (not shown). In modifications, the surfaces 13, 14 are provided by grooves (29, 30) in the top face of the plate 12, and the surfaces (48, 49) may be at right angles to each other, see Fig. 8, (not shown), fibre optic bundles (51, 53) delivering light to two or more adjacent edges (50, 52) of the plate. In further modifications, the plate is a disc (54), Fig. 9 (not shown) having circumferential and radial grooves (55), a fibre optics bundle (56) being disposed around the disc, which is rotatable about its axis. In Fig.10 the disc 57 has a bevelled edge 58 to lead light from 59 through the disc which has grooves 61.