baber/WOPTO huggingface dataset:
Patent GB-1426549-A (GB)
Title: Self-propelled root harvesters
IPC: A01D27/00
Filed: 1972-11-02
Abstract: 1426549 Self propelled root harvester RANSOMES SIMS & JEFFERIES Ltd 1 Nov 1973 [2 Nov 1972] 50587/72 Heading A1F [Also in Division B7] A self propelled beet harvester has front ground engaging steering wheels 6, and means to automatically control the steering so that the machine maintains alignment with the rows of beet being harvested. Probes 36, attached to a subframe 38 on horizontal pivots are situated to the rear of a topping unit 40 and pass on either side of the row of beet. Misalignment of the machine relative to the row causes one of the probes to be displaced vertically, this motion is detected by one of two proximity switches 32 which are in circuit with a solenoid operated hydraulic spool valve 22. The spool valve in turn controls a double acting ram 2, thereby turning the wheels 2 and realigning the machine. A second set of proximity switches 34 situated on the front axle are also in circuit with the spool valve and through it operate the ram to straighten the wheels after alignment. The ram also acts as a power assisted steering mechanism controlled by a steering wheel 20, a valve 18 controlling the flow of fluid to the ram. If the automatic aligning mechanism is not required, the probes may be lifted clear of the ground and the machine steered in the conventional manner. The flow of fluid between valve 18 and the ram may be cut off by a switch 42, the machine then being steered entirely by mechanical means using wheel 20. In another embodiment, the topping units are displaced transversely relative to the frame by hydraulic means in order to maintain alignment with the row of beet, as in Specification 1426550, switching means being provided to effect changeover between this topping control and the automatic steering.
Patent GB-1236438-A (GB)
Title: Method of producing a telecommunication cable with plastics-insulated cores
IPC: H01B7/285
Filed: 1968-10-25
Abstract: 1,236,438. Cables. VEREINIGTE DRAHTUND KABELWERKE A.G. 25 Oct., 1968 [27 Oct., 1967 (2)], No. 50714/68. Addition to 1,169,797. Heading H1A. Polyethylene-insulated, colour-coded cores in a telecommunications cable as described in the parent Specification are provided with a protective transparent polyethylene cover by two methods. Method 1: Each core is coated with a polyethylene dispersion in water (containing additives such as alcohol, thickeners, anti-foaming agents and surface-active agents). The water is then evaporated off and the surface layer heated until it is transparent. Method 2: Each core is coated with paraffin oil or liquid paraffin and a thin layer of powdered polyethylene is applied. This layer is sintered on to the lower polyethylene layer and paraffin to form a homogeneous layer, thus rendering the outer layer transparent.
Patent GB-1331449-A (GB)
Title: Lockable chair hinge particularly for motor car seats
IPC: B60N2/20
Filed: 1970-10-27
Abstract: 1331449 Lockable chair hinge R SCHEEL 27 Oct 1970 [28 Oct 1969] 50940/70 Heading E2F  A lockable chair hinge has a releasable frictional locking coupling and a releasable non- frictional (i.e. positive) locking coupling, the couplings being jointly operable by a common device, and a stop co-acting with the non-frictional coupling to define a limited degree of pivotal freedom in the event of the frictional coupling slipping. The frictional coupling comprises a band 18 wrapped around a friction drum 7 with the band ends 19 engaging a beam 20 which may be raised or lowered by a lever 28 to vary the tension in the band 18. An adjustable screw 23, threadedly engages the beam 20 and has its lower end 30 co-operating with a cam 29 operable by the lever 28. The screw 23 may be dispersed with and the beam 20 be in the form of a leaf spring, Fig. 5 (not shown). The non-frictional coupling comprises a toothed claw 44 of resilient material (e.g. rubber) fixed to a plate 38 movable radially of the pivot axis 13 so as to be engageable with the toothed perimeter 37 of the drum 7. The plate 38 is movable by a cam 43 operable by the lever 28. A stirrup spring 47 urges the claw 44 out of engagement with the drum 7. Lateral plates 46 comprise stops which limit the angular movement of the plate 38. A pin 33 is engaged in an arcuate slot 32 to limit the hinge's pivotal range. The pin 33 may be withdrawn from the slot by a handle 34. A spiral spring 15 surrounds the drum's hub 11 and is pre-tensioned between the hub and a housing 6.
Patent GB-1451194-A (GB)
Title: Beneficiation of ores
IPC: B03D1/014
Filed: 1972-11-06
Abstract: 1451194 Froth flotation ALBRIGHT & WILSON Ltd 6 Nov 1973 [6 Nov 1972] 51007/ 72 Heading B2H A process for the beneficiation of an oxidic tin are e.g. cassiterite, comprises subjecting an aqueous slurry of the ore to froth flotation in the presence of at least one ether phosphate of the formula: or an alkali metal, alkaline earth metal or ammonium salt thereof, wherein R represents an alkyl or alkenyl group having 8 to 20 carbon atoms, n is 2, 3 or 4, m is an integer of 1 to 8 and x is a statistical average in the range 1 to 2. When R is alkenyl, the group contains an average of not more than 30 carbon atoms and when R is alkyl, the group contains an average of not more than 28 carbon atoms. The preferred groups R are lauryl, cetyl, oleyl and stearyl and compounds specifically mentioned are 2 ethoxy lauryl acid phosphate, 6 ethoxy lauryl acid phosphate, 3 ethoxy aleoyl acid phosphate, 6 ethoxy cetyl acid phosphate, 6 ethoxy aleyl acid phosphate and the mixture of acid phosphates obtained from the triethoxylate of a mixture of saturated C 11  to C 15  alcohols. The process is preferably carried out at a pH in the range 2-7 using ore particles in the range -100 to +300 BS mesh. Sulphide values are removed in a preliminary froth flotation step using a xanthate salt. Some of the alkyl ether phosphates are particularly suitable for the separation of cassiterite from tourmaline and/or chlorite.
Patent GB-1140808-A (GB)
Title: Reading device for a perforated record medium
Inventor: MOYLES DAVID JOHN
Filed: 1967-11-09
Abstract: 1,140,808. Sensing records. CREED & CO. Ltd. 9 Nov., 1967, No. 51065/67. Heading G4M. Each sensing pin 2 has an associated storage member 5 which rotates anticlockwise to change over contacts 11, 7 when a hole is sensed and remains in this position while the pins are withdrawn from the tape 1 and the tape is fed to the next row position. Before sensing takes place, bail 8 is moved to the left, and cam 9 then rocks arm 3 to allow pins 2 to rise under the action of springs 4, those springs 4 which are associated with pins 2 sensing holes, rising above arms 5 so that the latter are rotated by springs 6. When the pins 2 are lowered by arm 3, those springs 4 resting on the top of the rotated arms 5 are deflected where the associated pins 2 bear on them. After feeding the tape 1 and before sensing the next code position, bail 8 resets the arms 5.
Patent GB-1099700-A (GB)
Title: Closed-circuit force-feed lubrication system for marine diesel engines and other devices requiring lubrication
IPC: F02B3/06
Filed: 1963-12-30
Abstract: 1,099,700. Lubricating. MIRRLEES (ENGINEERING) Ltd. March 30, 1965 [Dec. 30, 1963], No. 51111/63. Heading F2A. A closed force-feed lubrication system supplying a device, e.g. a marine diesel engine, with lubricant, comprises power means 3A driving a pump 2A through a clutch 5A and a pump 1A, both pumps being connected to discharge line 10, pump 1A operating alone when the engine starts up, and both pumps operating during running conditions. The delivery rate of pump 1A pumping cold lubricant is less than the combined rate of both pumps 1A, 10 pumping hot lubricant, whilst the power required in each ease is approximately equal. The pumps are driven by opposite ends of the rotor of electric motor 3A. In case of failure of pump set A, a duplicate set B is provided. Clutch 5A is controlled manually or by a temperature or motor-current sensitive element. Pump 1A may be disconnected from motor 1A by coupling 4A.
Patent GB-1376739-A (GB)
Title: Welt-cord and piping for upholstery and slipcovers and the like
IPC: D07B1/02
Filed: 1971-11-04
Abstract: 1376739 Cords CONSO ENG CO 4 Nov 1971 [22 Feb 1971] 5l337/71 Headin D1T A cord suitable for use as a welt-cord for upholstery comprises an inextensible flexible core 6 consisting of a plurality of contiguous filaments arranged to form a closed bundle, the bundle being embedded in and adhered to a surrounding body of extruded cellular synthetic resin material 5 which is radially yieldable and which does not penetrate the bundle. The core 6 may be a multiplicity of glass filaments and the resin may be polyethylene. The cord may be encased in a fold of fabric 9 sewn together at 12 about the cord. - The ratio of the outside diameter of the material 5 to the diameter of the core 6 is between 19:1 and 25:1.
Patent GB-1361890-A (GB)
Title: Vinyl chloride resin backed floor covering
IPC: D06N7/00
Filed: 1972-11-08
Abstract: 1361890 Coated floor covering UNIROYAL Inc 8 Nov 1972 [10 Nov 1971 51565/72 Heading B2E A method of backing a hard surfaced floor covering comprises applying a layer of prefluxed plasticised vinyl chloride resin granules containing a blowing agent over the back of a floor covering, and heating the assembly to a temperature sufficiently elevated to melt said granules and decompose said blowing agent to form a continuous sheet of flexible foamed backing in situ on said floor covering. The vinyl chloride may be a homopolymer or a copolymer containing at least 50% by wt. of vinyl chloride and another 'copolymerisable monoethylenically unsaturated monomer such as vinyl acetate, ethylene, propylene, cetyl vinyl ether, dialkyl maleate esters, acrylonitrile or styrene. The resin, plasticiser and blowing agent are prefluxed, formed into a sheet, then granulated. The granules may be of more than one colour. Ranges of viscosity of the resin. and size and amount of granules are given. The floor covering in the example has a hard transparent p.v.c. wear layer over a printed pattern formed on a vinyl plastisol foamed layer backed with a felt layer. The foamed prefluxed backing is formed by spreading the granules on the back of felt layer. An adhesive layer may be interposed between the felt and the foamed prefluxed backing, the adhesive comprising a latex or plastisol.
Patent GB-1368781-A (GB)
Title: Process for thre preparation of chlorinated hydrocarbons
IPC: C07C17/08
Filed: 1971-11-05
Abstract: 1368781 Chlorination of hydrocarbons STAMICARBON NV 5 Nov 1971 [14 Nov 1970] 51626/71 Heading C2C  Chlorinated hydrocarbons such as CCl 4 , C 2 Cl 4 , C 2 Cl 6  and C 4 Cl 6  are prepared by reacting in a first stage one or more unsaturated C 4  or higher aliphatic hydrocarbons with chlorine and/or hydrochloric acid, and oxygen, in the presence of an oxychlorination catalyst at a temperature sufficiently low whereby substantially no oxidation of the hydrocarbon is effected, e.g. 250‹ to 400‹ C., and a partially chlorinated intermediate is formed, and further chlorinating the intermediate in a second stage with chlorine and/or hydrochloric acid. The second stage may be carried out with or without the presence of oxygen, an oxychlorination catalyst or a chlorination catalyst.
Patent GB-1488496-A (GB)
Title: Isophthalic acid manufacture
IPC: C07C63/24
Filed: 1974-11-29
Abstract: 1488496 Isophthalic acid manufacture ATLANTIC RICHFIELD CO 29 Nov 1974 [27 Feb 1974] 51857/74 Heading C2C In accordance with the present invention, there is provided a continuous method of manufacturing isophthalic acid by the molecular oxygen oxidation of metaxylene in solution in acetic acid and in the presence of a cobalt catalyst, the method including the steps of: (a) feeding metaxylene and acetaldehyde to a mixture of metaxylene, acetaldehyde, a principal amount of aqueous acetic acid, isophthalic acid in both slurried and dissolved form, cobalt catalyst, and intermediate oxidation components, in a first reaction zone, and passing a gas containing molecular oxygen through said mixture in said zone; (b) transferring an interstage stream of said mixture from said first zone to a second reaction zone; (c) feeding acetaldehyde to said second reaction zone which contains approximately one-tenth to approximately twice the volume of reaction mixture as said first reaction zone, and passing a gas containing molecular oxygen through the mixture in said zone; (d) withdrawing from said second zone a stream of said mixture for transfer to a system for recovery of isophthalic acid, the flow rate of such withdrawn product stream, expressed as moles of aromatic components per hour, being substantially the same as the flow rate to said second reaction zone; (e) regulating flow rates and volume of mixture in the first reaction zone to maintain average residence time of aromatic components in said first zone within a range of approximately 1 to 10 hours, the average residence time in the second reaction zone being from one-fifth hour to 10 hours, and the total residence time being within the range of approximately 1À2 to 20 hours; (f) controlling the temperature of each reaction zone to be within the range of approximately 100 to 130 C.; (g) regulating the temperature of each reaction zone and regulating the aromatic component flow rate to maintain in the first zone a large molar ratio of isophthalic acid to metatoluic acid and a concentration of metatoluic acid below 2 weight per cent of the liquid portion of the stream withdrawn from the first zone and to maintain in the second zone a large molar ratio of isophthalic acid to metatoluic acid and to maintain in the liquid portion of the stream withdrawn from the second zone a concentration of metatoluic acid below 0À4 weight per cent.
Patent GB-522133-A (GB)
Abstract: 522,133. R÷ntgen-ray apparatus. GENERAL ELECTRIC CO., Ltd., and CALDWELL, J. T. Dec. 7, 1938, No. 35604. [Class 98 (i)] Supporting means for an X-ray tube comprising a column movable along a trackway and carrying a vertically adjustable bracket supporting the tube, comprise means controlling the locking of the column and bracket in their adjusted positions arranged on the bracket towards the end remote from the column. In the form shown, the column comprises parallel tubular members 1, 2 carried by a base 3 having wheels 5 which run on a track. The X-ray tube is supported on a counterweighted carriage 19 sliding on a bracket formed by tubes 20, 21 connected by a crosspiece 22 and yoke 23, the centre portion 24 of the latter being journalled on a carriage 18 vertically slidable on the tubular members 1, 2. The means for locking the carriage 18 on the column, and the column in position on the track, comprise a vertical and rotary shaft 6 extending up between the members 1, 2 and connected by gears 9, 10 to one of the axles 4 of the rollers 5. The shaft 6 may be engaged by friction members 25, 26 in the carriage 18, thus locking the carriage on the column and preventing rotation of the shaft, which prevents rotation of the wheels 5 and so locks the base 3 on its track. The friction members are operated by a lever 30 pivoted in one arm of the yoke member 23. the lever being connected through a universal joint to a rod 32 which extends through the bracket tube 20 to a control lever 28 at the end. The angular adjustment of the bracket is maintained by a locking device comprising a lever 38 pivoted in the other arm 39 of the yoke 23 and having a wedge-shaped end engaging in a circular groove in the face of a member 35 on the end of the journal on which the bracket is mounted. The lever 38 is operated from a control lever 43 through a rod 42. In the construction shown, the column is mounted on a ball-bearing turntable 45 on the base 3, which may be locked in one of four positions at rightangles to one another by a foot-lever 47.
Patent GB-1496613-A (GB)
Title: Air bubble massage apparatus
IPC: A61H33/00
Filed: 1975-12-22
Abstract: 1496613 Air bubble massage apparatus R KULISCH 22 Dec 1975 [24 Dec 1974] 52433/75 Heading A4N Air bubble massage apparatus comprises a control housing 20 containing a blower and heater and connected by an air hose 24 to a bubble grating 36 located in a bath 35, the blower being powered via a cable 17 from a mains step down transformer accommodated in a separate splashproof housing 10 which can be positioned out of reach of the bath, the transformer being connectable via a cable 11 to a mains socket 33, said control housing also having a speed switch and a time switch for the blower which operates on a voltage of 24 volts or less. The blower may be a direct current blower if a rectifier and a filter capacitor are also accommodated in housing 10. The speed switch for the blower may then have a regulatable thyristor circuit. Housing 20 is also splashproof and has grip hollows so that it may be carried. Cable 17 is detachably connected to housing 10.
Patent GB-1134502-A (GB)
Title: A self-checking condition monitoring system
IPC: G08B23/00
Filed: 1965-12-13
Abstract: 1,134,502. Transistor oscillator circuits. SCULLY SIGNAL CO. 13 Dec., 1965 [18 Dec., 1964], No. 52833/65. Heading H3T. [Also in Division G1] In a self-checking condition monitoring system the output of a sensor monitoring the condition is modulated by a periodic checking signal applied to the sensor and supervising means operated by the modulated output are released after a predetermined time upon loss of the modulated output due either to a change in the condition or failure of the sensor. The invention is applicable to the detection of light, levels, flow, temperature, movement or degree of proximity, but the embodiment shown relates to a flame detector, where a phototransistor 14 is rendered conductive by a flame 21 to energize a relay 13 whose make contact 19 applies reverse bias to the phototransistor to turn it off. The resulting periodic actuation of phototransistor and relay generates an alternating signal in transformer 25 which operates the slow to release relay 29, whose contacts operate alarm and indicating circuitry. Failure of the flame or phototransistor renders the relay 12 inactive and the relay 28 is released after a predetermined time.
Patent GB-1261187-A (GB)
Title: Improvements relating to vehicle roof luggage racks
Inventor: KENDRICK HARRY
IPC: B60R9/04
Filed: 1968-11-08
Abstract: 1,261,187. Luggage racks. DESMO Ltd. 30 Oct., 1969 [8 Nov., 1968], No. 52915/68. Heading B7J. A luggage rack for a vehicle roof or boot lid, having metal tube in its construction, includes a connection between a tube of the rack, for example 9, Fig. 4, and another tube of the rack, for example 8, Fig. 4, which connection comprises a hexagonal nut 10 disposed coaxially in the bore of the tube 9 and secured by deformation of the wall of the tube 9 forming two circumferential grooves 11 which grip the nut 10 at its periphery and an externally screwthreaded member 12 engaging the thread of the nut 10 and extending through the adjacent end of the bore. The member 12 passes through diametrically opposite holes in the tube 8 and an axial bore in a moulded plastics junctionpiece 13. The junction-piece 13 has a hollow seating 14 of cross-section such as to be complementary with the surface of the tube 8 and a spigot 15 and sleeve part 16 fit respectively into and around the end of the tube 9. A rubber pad 19 engages the surface of the roof or boot of the vehicle and is moulded around one end of a bolt or screw 18 which engages a nut secured in a leg portion 7 of a tube 6 in a manner similar to that used for the nut 10 in the tube 9.
Patent GB-1335377-A (GB)
Title: Apparatus for inspecting the lower parts and piles of bridges
IPC: E01D19/10
Filed: 1970-11-09
Abstract: 1335377 Mobile staging D C R CHIAROTTO S LOTTO and F SAGGIN 9 Nov 1970 [12 Nov 1969] 53160/70 Heading E1S [Also in Divisions B7 and B8] A mobile apparatus for inspecting the underneath of bridges &c. comprises a lorry 1 upon which is rotatably mounted a base frame 4 which pivotally mounts, by way of a link 5, an extensible tower 6 movable between a horizontal inoperative position and a vertical operative position and being displaced by the link 5 during such movement, away from the centre line of the lorry. An extensible platform 8 is mounted on the lower end of the tower to be pivotable between an inoperative position alongside the tower and an operative position at right angles thereto, and to be rotatable about the axis of the tower whereby the platform may be located beneath a bridge.
Patent GB-1323019-A (GB)
Title: Process for the removal of oxazole
IPC: C07D263/32
Filed: 1971-11-17
Abstract: 1323019 Purification of fluid contaminated with oxazole MONSANTO CO. 17 Nov 1971 [18 Nov 1970] 53437/71 Heading C2C A process for the purification of an organic fluid contaminated with oxazole, comprises contacting the fluid with a salt consisting of a strong acid and a metal of the Fourth Period of the Periodic Table. Preferably, the metal is cobalt, nickel, copper or zinc and especially in the + 2 oxidation state and preferably the salt is a chloride or nitrate. The process is particularly applicable to the removal of oxazole from unsaturated aliphatic nitriles. The salt may be supported on a substrate, e.g. activated metal oxide, dissolved in a solvent or present as a solid.
Patent GB-1534619-A (GB)
Title: Process for upgrading lignitic-type coal as a fuel
IPC: C10L9/02
Filed: 1976-12-22
Abstract: 1534619 Upgrading lignitic type coal E KOPPELMAN 22 Dec 1976 [12 Jan 1976] 53573/76 Heading C5G Lignitic-type coal is upgraded by charging it into an autoclave, heating it to 750 to 1250 F. under at least 1000 p.s.i. for sufficient time to convert the moisture and some of the volatile organic constituent therein into a gaseous phase and to effect a partial thermal restructuring of the chemical structure thereof and a change in its chemical composition, cooling the lignitic-type coal charge and recovering the upgraded coal product. During cooling the lignitic-type cbal may be maintained in contact with the gaseous phase to effect deposition of the condesible organic constituents. Alternatively cooling may be in a nonoxidizing atmosphere and the cooled charge may be contacted with the gaseous phase withdrawn from the autoclave.
Patent GB-1312400-A (GB)
Title: Electrical contact mats
IPC: H01H3/14
Filed: 1971-11-22
Abstract: 1312400 Retractive switches VEREINIGTE BAUBESCHLAGFABRIKEN GRETSCH & CO GmbH 22 Nov 1971 [12 Jun 1971] 54051/71 Heading H1N A mat type pressure switch comprises two contact sheets 1, 2 of conductive resilient layer plastics material or natural rubber (graphite added for conduction properties) separated by a layer 3 comprising a grid mat 4 of a foamed resilient material. The mat may be made self-adhesive on its outer sides. A synthetic plastics material or natural rubber in the form of a bag or layers is used to envelope the unit in a water tight manner. Connection elements 6 with connection leads 7 are mounted on sheets 1 and 2.