baber/WOPTO huggingface dataset:
Patent GB-501742-A (GB)
Title: Improvements in the manufacture of dyestuffs
IPC: C09B3/02
Filed: 1937-08-30
Abstract: 501,742. Dyes. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Aug. 30, 1937, No. 23688. [Class 2 (iii)] Dyes are made by heating benzanthrone or chloro derivatives thereof with catalysts of the Friedel-Crafts type, if desired in presence of an aromatic or hydroaromatic hydrocarbon or a halogen derivative thereof as solvent. Catalysts specified are anhydrous aluminium chloride, bromide or iodide, anhydrous iron chloride, molten zinc chloride and boron fluoride. Hydrocarbons specified are benzene, toluene, xylenes, naphthalene, alkylated naphthalenes, diphenyl, alkyldiphenylenes, tetra- and deoahydronaphthalene and their derivatives. The products are dark-coloured flours or pastes which are soluble in hydrocarbons, fats, oils and waxes giving a yellow, red, or brown colouration and a faintly reddish to greenish fluorescence. In examples, mixtures of (1) benzanthrone or 6-chlorbenzanthrone and diphenyl and (2) benzanthrone and 1.3.5-trichlorbenzene, are heated with aluminium chloride, followed by decomposition of the mass with water, washing with dilute hydrochloric acid, and removal of the solvent.
Patent GB-665719-A (GB)
Title: Improvements in or relating to trailer agricultural implements such as reciprocatingcultivators
Inventor: HORSTMANN BEVAN GRAHAM
IPC: A01B19/06
Filed: 1949-09-14
Abstract: 665,719. Agricultural implements. HORSTMANN, Ltd. Sept. 14, 1949. No. 23712/49. Class 6(i). A reciprocating cultivator comprises a trailer mounted on two castor wheels 5 and pivoted by a pin 4 to a tractor so that the machine may swing laterally with respect to the tractor. The reciprocating tines 11 are mounted on beams 9, 10 pivoted on levers 8 which are pivotally mounted on the frame of the machine. The beams 9, 10 are reciprocated by a mechanism 12 driven through universal couplings 14, 15 from the tractor power take-off shaft. Stop means are provided on the tractor to limit the transverse movement of the machine when turning. The castor wheels are adjusted by handles 7 to vary the working depth of the cultivators and the wheels may be coupled by a rod to obtain a more stable castor action. The mechanism 12 may be of the form described in Specification 657,649.
Patent GB-1106235-A (GB)
Title: Protection of metallic films on glass
Inventor: DESART JULES SACREZ AND JEAN
IPC: C23C18/18
Filed: 1965-06-03
Abstract: A metallic film (e.g. of Au) on glass, after being treated with an aqueous solution of SnCl2, is treated with an aqueous solution of a salt of a noble metal (i.e. of Ag, Au, Pd, Pt, Rh, Ru, Os or Ir) the concentration of such solution and the duration of such treatment being such that this treatment improves the abrasion resistance of the film when dry.  The glass may form a coating on a ceramic support.  The noble metal salt may be AgNo3, AuCl3 or PdCl3 and its solution may comprise 10-100 mg of salt per litre of H2O.  The treated metallic film may be covered with another sheet of glass or vitrified ceramic to form a laminate.  The further sheet may be bonded to the treated sheet bearing the metallic film directly or through an intermediate layer such as an intermediate plastics sheet. In Example 1, a laminated wind screen is made by coating glass with Au, treating with SnCl2 solution, washing with H2O, treating with AgNO3 solution, washing with water and drying, and then assembling with a vinyl resin sheet and a clear glass sheet using intermediate adhesive layers.  Example 2 is of making electric heating panels from glass sheets by metallizing them with gold and then treating them with aqueous solutions of SnCl2 and AgNO3.
Patent GB-1032987-A (GB)
Title: Improvements in or relating to multiple reflection optical devices
IPC: G02B6/00
Filed: 1964-06-09
Abstract: 1,032,987. Optical apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 9,1964 [June 12,1963],No.23849/64. Heading G2J. In a method of studying surfaces, or gases or other materials in contact with such surfaces, using frustrated total internal reflection, an optical element 1 is used having opposed parallel fuses 3, 43, and the radiation is supplied through a curved auxiliary element 4 in optical contact therewith. As shown, infra-red radiation from a source 15 is received by element 4 and the emerging radiation passes from an element 5 to a detector 16, the elements 4, 5 each being substantially a quarter of a cylinder the axis of which lies at 14, 35, midway between surfaces 3 and 43 and substantially in the same plane as surfaces 9,11. The element may be mounted for rotation about axis 14 so that the radiation may enter at various angles and a larger or smaller number of reflections may take place in the element before the radiation emerges, the detector 16 being mounted for corresponding rotation about axis 35. The elements 4, 5, may be moved closer together if less reflections are desired.
Patent GB-748966-A (GB)
Title: Improvements in aircraft
IPC: B64C39/00
Filed: 1953-08-28
Abstract: 748,966. Aircraft. McGLASHAN, N. July 20, 1954 [Aug. 28, 1953], No. 23855/63. Class 4. An aircraft of discus form comprises a central non-rotatable fuselage and an outer non-rotatable rim, and a blade rotor or rotors revolvably mounted therebetween, the blades being mov- - able from a forward flight position in which they form part of upper and lower aircraft surfaces, to a vertical flight position such that when the rotor revolves they impart vertical lift, together with means for driving the rotor and for propelling the aircraft forwardly. In Fig. 1 a circular fuselage 1 comprises a cockpit canopy 2 retractable into the fuselage at high speeds, and bears radial stays 5 supporting an annular rim 3. Two fins 4 above the fuselage are secured thereto and to the rim 3, and bear a tail surface 6 supporting an elevator 6a or two elevons; similar fins extend below the fuselage and may form landing skis in addition to other retractable landing gear. A jet-propulsion motor 7 is supported by each fin. The annular rotatable wing 8 comprises relatively fixed blades 9a, and an upper and lower set of movable blades 9, Fig. 5, adapted to be moved from a position flush with blades 9a, to the position shown in Fig. 5, when rotation will generate lift. Fluid jets 11 may be fast to the fuselage and rotate the wing by impinging on the blades 9, or the jets may be secured to the wing and rotate it by reaction. Two superposed contra-rotating wings may be used driven from an engine in the fuselage. The blades 9 may be moved from one position to the other by the aid of compressed air tapped from a compressor. The angle of attack of the blades may be controllable, e.g. cyclically.
Patent GB-1475725-A (GB)
Title: Electro-erosion machining
IPC: B23H7/10
Filed: 1974-05-29
Abstract: 1475725 Electro-machining FUR INDUSTRIELLE ELEKTRONIK AG 29 May 1974 [11 Sept 1973] 23879/74 Heading C7B [Also in Division B3] A spark-erosion or electro-chemical machining apparatus includes a guide and liquid flushing device comprising a guide portion 19, for a continuously moving elongate electrode 21 and an outlet 28 for passing a dielectric or electrolyte liquid to the area where the workpiece is eroded the liquid emerging from the outlet 28 as a stream surrounding and travelling parallel to the electrode 21. The apparatus comprises a pair of spaced arms 17, 18, each carrying a notched sapphire guide 19 for a wire electrode 21 and a current collector 20. The working zone between the electrode 21 and workpiece positioned between the two arms 17, 18 is flushed from above and below with liquid e.g. deionized water, supplied through pipes 22, 23 communicating with ducts 26, 28 in members 24, 25 from which the water is discharged axially of the electrode 21. To enable the wire electrode 21 to be threaded through the guide 19 and the outlet duct 28 in the member 24, 25, each member 24, 25 is pivoted to its associated arm 17, 18 to enable it to be moved away from the guide 19 and is provided with a slot (33) Fig. 3a (not shown), which communicates with the duct 28 and which is alignable with a slot (36) in a collar member 30. The electrode 21 is enclosed within the duct 28 by turning the collar 30 to close off the slot (33) in the member 24, 25. The water flowing from the working zone is collected in a tank (6) Fig. 2 (not shown), from which it is pumped by a pump (7) through a filter (8) and into a tank (9). The filtered water from the tank (9) is delivered by a pump (10) back to the working zone. If the water pumped from the tank (9) has a conductivity above a predetermined level which is detected by a device 11, 12, a valve (13) (or two valves 15, 16) is actuated to cause the water from the filter (8) to be passed to the tank (9) via a deionizer (14) until a predetermined conductivity level is reached.
Patent GB-761940-A (GB)
Title: Improvements in or relating to filters for fluids
IPC: B01D35/143
Filed: 1954-08-17
Abstract: 761,940. Filters. PUROLATOR PRODUCTS, Inc. Aug. 17, 1954 [Aug. 28, 1953], No. 23896/54. Class 46. [Also in Group XXVI] A filter comprises a housing 10, a centre tube 17, a filter element 15 and by-pass valve means 54 carried by the centre tube and operable to relieve excessive fluid pressure in the housing, clogged filter detector means operable in response to operation of the by-pass valve 54 and including an electric circuit closed by means including a thermostatic circuit-closing member 62 movable in the closing direction by operation of the by-pass valve 54, the member 62 being constructed to preclude circuit closing when the fluid is below a predetermined temperature. The by-pass valve is connected by an insulated rod 58 to the member 62 which is bimetallic and when cold is of bow form shown and is in a chamber 61 connected to the interior of the housing 10 by ducts 66. The member 62 is electrically connected through a spring 72 to a member 71 in circuit with a lamp 76 and battery 78. Fixed contacts 65 are formed in the chamber 61 and are grounded as is one end of the battery 78. The by-pass valve operates normally to relieve excess pressure due to cold oil e.g. if the filter is included in the oil system of an engine, when the engine is first started ; due to the bow shape of the member 62 the electric circuit is not closed. When the oil becomes heated the member 62 flattens and opening of the by-pass valve 54 under this condition causes the member 62 to engage contacts 65 and the lamp 76 is illuminated. Closing of the contacts may stop the engine.
Patent GB-1272740-A (GB)
Title: Mirror construction
IPC: G02B5/10
Filed: 1970-05-18
Abstract: 1,272,740. Mirrors. GEORGE KELK Ltd. May 18, 1970 [June 17, 1969], No.23983/70. Heading G2J. A mirror construction comprises a resilient metal sheet 10 having a mirror finish on one surface 11 or both sides, and two rigidly mounted, spaced apart support members 13, 14, the sheet following the curvature of respective parallel convex arcuate edges 13', 14' of the members, the members being held apart by spacers 15, 15', 16, 16' and the sheet 10 being tensioned by springs 21, 21', 22, 22', anchored on rods 23, 24, so as to bear on the edges 13', 14' which are accurately milled. The sheet is stiffened by clamping members 25, 26 each comprising two elongate blocks, one on each side of the sheet, screwed together.
Patent GB-518089-A (GB)
Title: Improvements in and relating to the production of malleable iron
Filed: 1938-08-15
Abstract: 518,089. Malleable iron. BRITISH FURNACES, Ltd. (Surface Combustion Corporation). Aug. 15, 1938, No. 24001. [Class 72] In the production of malleable iron in which the iron is first heated up to a temperature above the critical, e.g., 1,600-1,750‹F., held at that temperature for a sufficient time to bring about the first stage annealing and then cooled to a temperature in the neighbourhood of the critical point and held there to produce graphitizing, the iron is surrounded during the heating up period and for an additional period of 1-10 hours during the first stage by an atmosphere of carburizing gas, and then completing the annealing for graphitizing in an atmosphere of decarburizing gas. The carburizing gas may comprise fuel gas such as natural or city gas or a mixture of such gas and flue gas and the decarburizing gas, flue gas. If the carbon content of the iron being treated is 2.3 per cent. of over, the composition of the flue gas is adjusted so that it contains a small proportion of oxygen in addition to carbon dioxide.
Patent GB-781078-A (GB)
Title: Improvements relating to bottle handling mechanism
Inventor: MOORES EDMUND ROY
IPC: B08B9/44
Filed: 1954-08-18
Abstract: 781,078. Conveyers. GIMSON & CO. (LEICESTER), Ltd. Aug. 18, 1955 [Aug. 18, 1954], No. 24062/54. Class 78 (1). Bottles 1 are transferred in batches from vertical position on an endless slat conveyer 2 to horizontal position on a carriage 29, e.g. for subsequent transfer to a washing machine, by apparatus comprising a pusher 10 which simultaneously discharges all the bottles of a batch into separate grooves in an arcuate plate 25 extending from adjacent the side of the conveyer where it is nearly vertical to a point adjacent the carriage where it is horizontal, and feeding members 27 which convey the batch of bottles up the grooves on to the carriage. The feeding members 27 are carried by a pair of endless chains 28 passing over driven sprockets 30 and tensioning sprockets 32 and intermediate guides. Sprockets 32 are carried on a shaft journalled in slidable bearings 36 adjusted by screws 37. The bottles on conveyer 2 are separated into batches by a stop 3 periodically inserted into the stream of bottles by a cam plate 53 arcuately adjustable with respect to a sprocket 39 carried on a main shaft 8. Sprocket 39 drives the sprockets 30 via chain 34. After passing stop 3 the bottles pass into a spacer worm 4 also driven from shaft 8. Stop 3 is mounted for longitudinal adjustment with respect to worm 4 to suit different sizes of bottles. Pusher 10 is driven from shaft 8 via a grooved cam 20, lever 16 and link 13 having an adjustable connection with a lever 15 on a rock-shaft 12 supporting the pusher. The bottles are pushed by pusher 10 on toa plate 26 to be picked up by the members 27. Shaft 8 is driven from the washing machine via a clutch comprising dogs 66a on a driving plate engaging corresponding recesses in a driven plate towards which the driving plate is urged by a spring 71. In the event of a jam, the dogs become disengaged from the recesses and the subsequent axial movement of the driving plate actuates a micro-switch to stop the driving motor. The dogs and recesses are of different sizes and re-engage in only one position to maintain synchronization.
Patent GB-729486-A (GB)
Title: Improvements relating to the construction of boxes
Inventor: RICHARDSON JACK
IPC: B65D6/02
Filed: 1952-09-26
Abstract: 729,486. Boxes. ASTRAL SWITCHGEAR, Ltd., [formerly ASTRAL ENGINEERING CO., Ltd.]. Sept. 23, 1953. [Sept. 26, 1952], No. 24151/52. Addition to 602,721. Class 18. [Also in Group XXII] The box described in the parent Specification is modified in that the elements joining the sides extend only part of the depth of the corners. The elements may be tubular and screwed for the securing of a lid. A series of elements may be welded in spaced relation along each corner. An element may be formed by rolling sheet metal to tubular form, a radial lug being left for insertion between adjacent box sides at a corner.
Patent GB-1517761-A (GB)
Title: Dispensing carbonated beverages
IPC: B67D1/12
Filed: 1975-06-04
Abstract: 1517761 Froth limiter EURACOM SA 4 June 1975 [5 June 1974 29 May 1975] 24156/75 Heading B8 [Also in Division G3] A froth formation limiter for drawing-off devices of carbonated beverages comprises a centred restrictor 2 defining an annular flow passage whose area increases in the direction of flow of the beverage, according to a parabolic formula. The restrictor preferably has an initial zone of parabolic shape and a downstream zone of hyperbolic shape. The flow passage increase may be provided by the shape of the restrictor or the shape of the outer conduit 1. The limiter may be part of a dip tube 4, Fig. 4, in a keg 5 and having an 0-ring 9 at its upstream end to prevent flow before the pipe 8 of the drawing device is fitted.
Patent GB-797176-A (GB)
Title: Improvements in or relating to the production of vitamin b
IPC: C07H23/00
Filed: 1956-08-07
Abstract: Colloidal impurities are separated from aqueous concentrates containing Vitamin B12 in a process in which said impurities are precipitated from said concentrates by the addition of one or more water-soluble compounds of metals falling within the analytical groups 1, 2a, 2b, 3a or 3b capable of forming substantially water-insoluble compounds with said impurities.  As water-soluble metal compounds there may be used water-soluble compounds of lead, mercury, tin, iron, aluminium and zinc.  During or after treatment of the concentrates the pH is made alkaline, e.g. in the range 7-10. Examples describe the purification of the residue of the bacterial fermentation of sewage and of a concentrate obtained from a culture medium of the antibiotic oxytetracycline making use of lead acetate and aluminium sulphate solutions.
Patent GB-1489841-A (GB)
Title: Body for vehicles particularly for working vehicles
IPC: B62D33/06
Filed: 1975-06-05
Abstract: 1489841 Vehicle fuel tanks AGERGARDS MASKINER AB 5 June 1975 [13 June 1974] 24290/75 Heading B7H In a vehicle body two tanks 4, 5 are located between the rear wall of the front housing beneath the operator's cab 1 and the forward walls of the rear wheel housings 2, 3.
Patent GB-1442512-A (GB)
Title: Preparation of 2,6-dinitroanilines
IPC: C07C211/48
Filed: 1974-05-31
Abstract: 1442512 N - alkylated - 2,6 - dinitroanilines AMERICAN CYANAMID CO 31 May 1974 [25 June 1973] 24292/74 Heading C2C Dinitroaniline compounds of the formula wherein Y is C 1 -C 4  alkyl, CF 3  or halogen; Z is H, halogen, C 1 -C 4  alkyl or alkoxy or monosubstituted alkyl wherein the substituent is halogen or C 1 -C 4  alkoxy; R 1  is (C 1 -C 6 )alkyl, (C 4 -C 6 )cycloalkyl, (C 1 -C 4 )monohaloalkyl or (C 1 -C 4 )alkoxy-(C 1 -C 4 )alkyl; and R 2  is H or one of the groups defined for R 1 ; are obtained by nitrating compounds of the formula wherein V and W are H or NO 2  provided that V and W are not both NO 2 ; at a temperature from 0 to 70 C. with a three component nitrating agent, the components being H 2 O, H 2 SO 4  and HNO 3 , having a composition falling within the area graphically represented by the trapezium defined by the lines connecting the points corresponding to: 60% HNO 3 , 8% H 2 SO 4 , 32% H 2 O; 50% HNO 3 , 35% H 2 SO 4 , 15% H 2 O; 2% HNO 3 , 68% H 2 SO 4 , 30% H 2 O; and 2% HNO 3 , 20% H 2 SO 4 , 78%H 2 O; said percentages being by wt. and when W and V are H, from 2À2 to 5À0 moles of HNO 3  being employed per mole of said aniline of Formula II, and when W or V is NO 2 , from 1À2 to 4À0 moles of HNO 3  being employed per mole of said aniline of Formula II. The process may be carried out in a batchwise or continuous manner. When compounds of Formula II above in which R 2  is H are employed in the above process the reaction mixture from the nitration step may be treated with a denitrosating agent which may be a combination of cone. HCl and sulphamic acid. Some of the products are useful as herbicides.
Patent GB-1279345-A (GB)
Title: Improvements in and relating to temperature measurement
IPC: G01K1/14
Filed: 1970-05-20
Abstract: 1279345 Thermocouples ALCO STANDARD CORP 20 May 1970 [27 May 1969] 24411/70 Heading H1K A thermocouple assembly is arranged so that the longitudinal position of an elongate thermocouple unit can be adjusted relative to an elongate body having a bore through which the unit passes. As shown, Fig. 3, a thermocouple cable J having a metal sheath 52 filled with magnesium oxide insulation (56) surrounding two wires (54, 56) of chromel and " Alumel " (Registered Trade Mark) respectively which are joined at one end to form an exposed hot junction 60, has two stops 80, 82 welded to its sheath to prevent axial movement of an adjusting knob H relative to the cable. Knob H comprises a wheel 84 and a threaded cylinder 86 which screws into one end of an adapter E. The other end of the adapter E screws on to a body member D which itself screws into a threaded hole in the wall of a conduit (A, not shown). The thermocouple cable J passes through a P.T.F.E. sealing gasket 94 compressed between the body member D and the adapter E so that its hot junction 60 lies within the conduit. The outer end of cable J is terminated by a connector K which is linked to a measuring instrument. When the wheel 84 is rotated anticlockwise it unscrews from adapter E and moves the cable J to the left so that the hot junction 60 is withdrawn from the conduit into the end 20 of the body member D. A cylinder 108 attached to wheel 84 co-operates with a scale marked on the end portion 48 of adapter E so that the position of hot junction 60 relative to the end 20 of the body member D can be selected. The device is used in a plastics moulding machine in which it is desired to measure the temperature at different depths in the conduit and in which withdrawal of the measuring head from the plastics flow is desired when starting up the machine and during steady state operation.
Patent GB-267416-A (GB)
Title: Improvements in gears and gear teeth
IPC: F16H55/08
Filed: 1926-10-02
Abstract: 267,416. Hammar, S. A. S. Oct. 2, 1926. Toothed wheels. - Gear teeth for spur, bevel, helical, spiral, and worm gearing, external and internal, are formed with stepped profiles, a line 15 drawn through the ends of the bases of each section preferably being of parabolic form, so that each section is equally strong. The profiles may be involute, cycloidal, &c. in form and may differ in each, but are properly formed in relation to their pitch circles so as to effect uniform rotation. When involute, the profiles in the successive sections may have different pressure angles, for example 20‹, 15‹, and 20‹ respectively, and their shoulders 16 be slightly undercut, so that each section may take up the drive before the preceding section ceases to drive; this is not necessary with helical or like teeth, or when the angle of contact exceeds the pitch angle. The angle of contact is greater for a given length of tooth than with unstepped teeth. One side only of the tooth may be stepped, in which case the offsets are twice as great as with double-stepped teeth.
Patent GB-585005-A (GB)
Title: A process for the production of bricks and other shaped earthenware articles
IPC: C04B38/06
Filed: 1944-12-07
Abstract: In the manufacture of bricks and earthenware articles (see Group V), a mixture of clay and ground oil shale, containing up to 70 per cent. of shale, is pressed to shape and heated to drive off the hydrocarbons which are withdrawn, mixed with air, and brought into contact with similar gases, unmixed with air, from other kilns to cause a deposition of sulphur.  The residual gases are condensed in a tank.ALSO:Bricks and earthenware articles are prepared by heating shapes formed of a mixture of clay and oil shale so as to evaporate light hydrocarbons which are extracted, and then continuing to heat the shapes to produce the finished articles.  The mixture of clay and ground oil shale containing up to 70 per cent. of oil shale, together, if desired, with up to one-third of the weight of the other materials of kieselguhr to produce a lighter article, is pressed into shape and the shapes are placed in a kiln having openings in the floor which may be covered or uncovered from outside.  The kiln is fired with the openings covered, and the hydrocarbons driven off are extracted by a fan, purified, and condensed, (see Group III), any residual vapour being led back to the kiln to assist in the firing. The floor openings are then uncovered and the flames are thus permitted to enter the kiln and ignite any oil remaining in the shapes to facilitate burning and to produce a porous article.  In an alternative process, the preliminary heating may be effected by steam-heated pipes.