baber/WOPTO huggingface dataset:
Patent GB-807638-A (GB)
Title: Substantially anhydrous ferrous fumarate and a method of preparing same
IPC: A61K31/295
Filed: 1957-03-14
Abstract: The invention comprises substantially anhydrous ferrous fumarate having the empirical formula FeC4H2O4. It may be obtained by mixing a water-soluble ferrous salt and a watersoluble salt of fumaric acid in an aqueous medium at a temperature above 70 DEG  C. to precipitate the anhydrous ferrous fumarate which is then separated from the aqueous medium.  It is preferred to use ferrous sulphate as the water-soluble ferrous salt but ferrous chloride and ferrous acetate are also suitable. The preferred water-soluble salt of fumaric acid is sodium fumarate but ammonium- and potassium-fumarate may also be used. The anhydrous ferrous fumarate product is substantially stable on exposure to moist air and has the empirical formula FeC4H2O4.  In examples: (1) a solution of sodium fumarate is prepared by slowly adding fumaric acid to a solution of sodium carbonate in water, the pH being about 7, and a moderately hot clear solution of ferrous sulphate having a pH of 2.4 is added with mixing to the sodium fumarate solution which is maintained at 94-100 DEG  C. during the addition, the resulting slurry is stirred for 30 minutes and is then filtered and the residue is washed with water in a centrifuge and then dried in trays for 17 hours at 115 DEG  C. to yield anhydrous ferrous fumarate; (2) fumaric acid is added to an aqueous solution of sodium carbonate which is stirred and heated during the addition and the resulting solution of sodium fumarate (pH 6.8) is added to an aqueous solution of ferrous sulphate (pH 3.3) while maintaining both solutions at or near boiling temperature; the resulting slurry is then filtered and processed as in (1) except that the tray drying is for 15 hours at 110 DEG  C.  Examples are also given to illustrate the stability of the product on exposure to moist air. The product is stated to be valuable as a source of iron for medicinal purposes (see Group VI) or for agricultural purposes e.g. in the growing and maintenance of turf.ALSO:A haematinic composition in dosage form comprises substantially anhydrous ferrous fumarate (see Group IV (b)) and a pharmaceutical carrier.  The composition may be in the form of tablets of the anhydrous ferrous fumarate and a pharmaceutical carrier such as a filler, binder, or lubricant, or in the form of hard gelatine capsules filled with the anhydrous ferrous fumarate. Specified solid carriers are starch, gelatine, talc, stearic acid, and magnesium stearate and specified binders are liquid glucose, starch paste, acacia solution, and gelatine solution.  In examples: (1) a tablet granulation is prepared by moistening anhydrous ferrous fumarate with a mixture of equal parts of liquid glucose and water, magnesium stearate is mixed with the dried granulation and the mixture made into tablets each containing about 200 mg. of the anhydrous ferrous fumarate; and (2) as in (1) except that starch is also added.
Patent GB-1456582-A (GB)
Title: Coloured polyamide composition
IPC: C08K5/23
Filed: 1974-02-25
Abstract: 1456582 Coloured polyamides DU PONT OF CANADA Ltd 25 Feb 1974 [28 Feb 1973 18 Dec 1973] 8506/74 Heading C3R A composition comprises a polyamide and an alumina lake of an azo dye harmless to humans when heated in contact with food. The polyamide may also include fillers or stabilizers, e.g. copper stearate, cuprous bromide or iodide and/or woolastonite, or TiO 2 . In examples various such lakes are incorporated in nylon 66 of R.V. 40 to 44 (8À4 wt. per cent in 90% formic acid at 25‹ C.). Preferred lakes are 3-carboxy- 5 - hydroxy - 1 - p - sulphophenyl - 4 - n - sulphophenylazopyrazole trisodium salt alumina lake; 1 - p - sulphophenylazo - 2 - naphthol - 6 - sulphonic acid disodium salt alumina lake; and 1-(4- sulpho - 1 - naphthylazo) - 2 - naphthol - 3,6- disulphonic acid trisodium salt alumina lake.
Patent GB-726993-A (GB)
Title: A noise generator for very short electric waves
IPC: H03B29/00
Filed: 1953-03-27
Abstract: 726,993. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. March 27, 1953 [May 10, 1952], No. 8527/53. Class 39 (1) [Also in Group XL (c)] A generator for very short wave " white " noise comprises one or more discharge gaps inside a coaxial line. In one embodiment, a gas discharge tube 3, Fig. 1, is arranged parallel to and between the inner and outer line conductors 2, 1 respectively. In a second embodiment, Fig. 3, a helical discharge tube 3 embraces the inner conductor 2. The helix may comprise one loop only, Fig. 2 (not shown). In another embodiment, the discharge tube 3, Fig. 4, comprises an annular envelope filling the space between the line conductors and having coaxial cylindrical electrodes 4, 5 connected to the outer and inner conductors 1, 2, respectively, which form the supply conductors for the tube. The tube 3, Fig. 5, has electrodes 1+4, 2+5 which form extensions of the line conductors 1, 2 respectively, the outer being closed to from the envelope which is sealed off by a glass disc 6. The electrode 1+4 4 is capacitatively coupled to the conductor 1 and insulating ring 7 being interposed therebetween.
Patent GB-1536070-A (GB)
Title: Devices for the treatment of bone fractures osteotomies and the like
IPC: A61B17/80
Filed: 1977-03-01
Abstract: 1536070 Plates for splicing fractured bones J P NEYRUEIS 1 March 1977 [4 March 1976] 08585/77 Heading A5R A plate for the surgical treatment of fractures and osteotomies includes a bone contacting surface which is roughened and non- porous, in order to improve the anchoring of the plate to the bone, and is provided with screws which, in use, extend through the plate to hold the plate to the bone. The plate may be made of metals such as stainless steel, titanium alloy or cobalt-chromium alloys, of ceramic material, ceramic-metal composites, or of fibre composites with a plastics or metal matrix. The roughened surface may be formed by spraying of molten metal droplets, mechanical methods, chemical or electrochemical methods, by direct casting, by direct forging, or by insertion of a rough ceramics insert into the surface. The plate may be provided with blades &c. for particular forms of bone-splicing.
Patent GB-545798-A (GB)
Title: Improvements in or relating to grease guns
IPC: F16N3/12
Filed: 1941-07-08
Abstract: 545,798. Grease guns. CROLLIE, J. W. July 8, 1941, No. 8621. [Class 102 (i)] In a hand operated grease gun in which lubricant is forced by a plunger 3 from a low-pressure chamber 4 into a high-pressure cylinder 15 from which it is ex pelled by a ram 1, the latter is locked in a. forward position against the action of a spring 8 by movement of a sleeve about the axis of the ram. The sleeve comprises an inner member 9 with an L-shaped slot 10, 11, and ar outer member 14 with a knurled exterior, the two members 9, 14 being spot-welded together. A pin 12 projecting diametrically through the upper portion 5 of the ran extends through a longitudina slot 13 in the screw-threaded shaft 2 of the low-pressure chamber 4 into the slot 10, 11 in the inner member of the sleeve.
Patent GB-1425263-A (GB)
Title: Liquid crystal display screens
IPC: G02F1/1343
Filed: 1973-02-22
Abstract: 1425263 Matrix displays SIEMENS AG 22 Feb 1973 [23 Feb 1972] 8622/73 Heading G5C A display screen comprises a nematic liquid crystal layer 6 between two plates 1, 8, one plate carrying a matrix of electrode elements 4 on an insulating layer 3 and a supply line 2 to each element on the surface of the plate and connected to that electrode through the insulating layer, the other plate supporting one or more counter electrodes 7. A line of matrices and corresponding counter electrodes may be arranged on the plates with each supply line extending across the plate connecting corresponding elements in each matrix. Each counter electrode 7 may be a continuous layer or a matrix of interconnected elements corresponding to the elements 4. The elements 4 may be reflective.
Patent GB-922391-A (GB)
Title: A new or improved optical inspection apparatus
Inventor: SIBTHORP ARTHUR NIGEL
IPC: G02B21/00
Filed: 1958-03-18
Abstract: 922,391. Profile gauges. WATSON MANASTY & CO. Ltd. April 16, 1959 [March 18, 1958], No. 8668/58. Class 106 (2). Apparatus for inspecting the outline of an article 1 comprises a set of probes 5 arranged to make point contact with the article and formed with co-planar flat faces (not visible) which reflect light into an optical system 9, this system projecting an episcopic image of the outline whilst the probes are in contact with the article. As shown, the probes 5 are in the form of laminµ, preferably sliding between interleaved fixed blades. The projection system is a lens 9 of greater diameter than any transverse dimension of the article 1. The laminµ may be replaced by needles having diametral co-planar flats at their work-engaging ends. If desired, a projection lens for each stack of probes may be provided. In order to assist viewing of the images a system of mirrors or prisms may be incorporated. Specification 762,779 is referred to.
Patent GB-798598-A (GB)
Title: Improvements in or relating to pipe connections
IPC: F16L19/10
Filed: 1956-03-20
Abstract: 798,598. Pipe joints. GRATZMULLER, J. L. March 20, 1956, No. 8698/56. Class 99(1). A pipe coupling according to Specification 757,497 is connected to each opening in a junction piece which may be a straight tubular piece 1, Fig. 1, for connecting two pipes 2 in alignment, a bend or elbow for connecting two pipes out of alignment, or a tee, cross, or other fitting for connecting more than two pipes together. Sleeves 3 screw on to the member 1, a flange 8 on each sleeve engaging an inner conical sealing ring 4 to force it into an outer ring 5. In Fig. 2, the outer rings are integral with the junction piece thus forming a single member 17 ; in a modification, Fig. 3 (not shown), the member 17 has a smooth outer surface, and one member 8 screws into the other. A flange 11 on the sealing ring 4 may be dispensed with. A pipe may be coupled to the wall of a vessel containing fluid under pressure instead of to a junction piece, and the coupling sleeves instead of having screw-threaded connections may be connected by studs or bolts engaging apertures in the sleeves or in flanges thereon.
Patent GB-735912-A (GB)
Title: Composite materials for cleaning and polishing
Inventor: WRIGHT HARRY ROBERT
IPC: A47L13/17
Filed: 1953-03-30
Abstract: 735,912. Pads. RECKITT & COLMAN, Ltd. March 30, 1954 [March 30, 1953], No. 8710/53. Class 19. A composite material for cleaning or polishing metal articles, furniture or silver articles comprises a carrier strip of cellulose sponge or wadding impregnated with a cleaning or polishing composition and provided with a backing of aluminium or other metal foil secured thereto for example by adhesive or stitching, the strip then being folded in zig-zag fashion.
Patent GB-1071481-A (GB)
Title: Wall and ceiling tiles
Inventor: MEDLYCOTT JOHN SHEFFIELD
IPC: E04F13/18
Filed: 1963-03-05
Abstract: 1,071,481. Facing tiles. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 17, 1964 [March 5, 1963], No. 8725/63. Heading E1B. A tile of synthetic thermoplastic material and to be secured by bonding, pinning, or clipping, to a wall or ceiling, is formed with a peripheral part 2 which is inclined with respect to its main part 1, the inclined part 2 being formed with a flange 3, which may take various shapes but whose edge 4 is level with the main part 1. A pattern may be attached to the face of the main part 1 or may be formed in the tile during its moulding. The tile may be square, rectangular, circular, or polygonal and may be provided on its rear face with a protected adhesive. Suitable corner and edging tiles having an inclined part over part only of the periphery are described. Suitable synthetic thermoplastic materials are exemplified.
Patent GB-1213020-A (GB)
Title: A device for freeing railway and like rails and points from snow and ice
Inventor: BUECHNER FRITZ
IPC: E01H8/10
Filed: 1968-02-22
Abstract: 1,213,020. De-icing rails. F. BUCHNER. 22 Feb., 1968, No. 8752/68. Heading B7J. Rail de-icing equipment comprises a frame formed of members 2-7 adapted to be detachably connected to the front or rear of a rail vehicle by means of spigots 8, 9 and screw holes 10, the frame members 2, 3 being spaced apart the same distance as rails 11, 12 and mounting burners 13-16 which are supplied with gaseous or liquid fuel through conduits 17 from a connection 18. Stop-cocks 20 are provided for each burner and a further movable burner may be fixed to connection 19. Fuel gas cylinders may be mounted on the rail vehicle and the burners electrically ignited from the vehicle cab. The frame may hinge vertically about member 4 by replacing members 5, 6 by telescopic rams. Also the frame members carrying the burners may be laterally pivotable. Modifications may allow the spacing of the burners on frame members 2, 3 to be adjustable or these members formed so as to be telescopable. The burners may be electrically ignitable.
Patent GB-954883-A (GB)
Title: Rotary face seal
IPC: F16J15/38
Filed: 1963-03-05
Abstract: 954,883. Mechanical seals. CONTINENTAL ILLINOIS NATIONAL BANK & TRUST CO. OF CHICAGO. March 5, 1963 [March 23, 1962], No. 8795/63. Heading F2B. In a mechanical seal 10 for a rotary shaft 11 comprising a non-rotatable sealing ring 30 sealed to the shaft housing 13 and urged into facial sealing contact with a sealing ring 20 secured to the shaft, means are provided to convert the frictional torque at the sealing faces 26, 31 into a force tending to separate those faces and thereby prevent excessive frictional contact. The ring 30 is slidably sealed, by means of an O-ring 35, in a cup housing 32 fitted in a bore 12 in the shaft housing 13. A thrust bearing 50 is disposed between the ring 20 and a pivot ring 47 held against rotation in the cup 32 by a pair of projections 48 on the ring engaging slots 49 in the cup. Axially-inclined pins 45 extend through holes 62 and 55 in a guide 61 and a spacer 56 respectively and bear at one end against a washer 57 and engage at the other end in sockets 46 in the ring 47. The washer 57 is clamped between a flange 58 on the ring 30 and the spacer 56 which is fixed to the ring 30. The ring 47 is urged away from the bearing 50 by a leaf spring 65 abutting a ring 66 locked to the ring 30 which latter is urged by the pressure of the sealed fluid and a leaf spring 60 into contact with the surface 26 of a carbon insert 25 in the ring 20. The cup 32 is sealed to the housing 13 by an 0-ring 33 and outward movement of the parts in the cup is limited by a retaining circlip 37. In operation, the shaft rotates in the direction 14 and excessive frictional drag at the sealing surfaces 26, 31 rotates the ring 30 in the cup 32 in a direction to straighten the inclined pins 45 and thus move the ring 30 away from the ring 20 to thereby reduce the drag to an allowable amount. In a modification, Figs. 3-5 (not shown), the frictional drag tends to separate the sealing faces by means comprising a cam follower which is secured to the ring 30 and engages a cam surface on a ring rotationally fixed in the cup 32.
Patent GB-941373-A (GB)
Title: Improvements relating to diolefin polymerization catalysts
IPC: C08F136/04
Filed: 1960-03-14
Abstract: 941,373. Polymerizing diolefins. MONTECATINI SOC. GENERALE PER L' INDUSTRIA MINERARIA E CHIMICA. March 14, 1960 [March 18, 1959], No. 8832/60. Addition to 916,000. Heading C3P. Diolefins are polymerized using a catalyst solution prepared by reacting a hydrocarbon soluble cobalt or nickel salt or complex with an organo-aluminium compound and at least 50 mols of a diolefin hydrocarbon per mol of said salt or complex in presence of a hydrocarbon solvent before the catalyst solution is used for polymerization. In examples, butadiene is polymerized with catalyst solutions prepared from CoCl 2 . 2C 5 H 5 N, Et 2 AlCl. and butadiene.
Patent GB-290015-A (GB)
Title: Improvements in delivery mechanism for printing, ruling or like machines
IPC: B65H31/18
Filed: 1927-03-31
Abstract: 290,015. Manifoldia, Ltd., and Bailey, J. March 31, 1927. Delivery apparatus.-In sheet-delivery mechanism for printing, ruling, or like machines, the delivery table 8 is provided with projecting members 9 adapted to engage screwed operating- spindles 6 so as to permit the table to be moved transversely to, and out of engagement with the screws. Vertical stops 49 are provided so as to prevent the tendency of the table 8 to move towards the printing &c. machine 3 under the action of the screws. Four spindles 6 are provided and members 9 corresponding therewith. the lower ends of the spindles being connected by bevel gearing 24, 25 to horizontal shafts 26 driven from a common cross-shaft 31. On the end of the shaft 31 is a gearwheel 32 meshing with a pinion 32<a> on a shaft 33 carrying a ratchet-disc 35 and having pivoted thereon an arm 36 on which is pivoted a. spring-pressed pawl 37 engaging the disc 35. The arm 36 is oscillated through a link 40 from a crank disc 42 so as to rotate the screws 6 through the. intermediate reduction gearing and lower the table 8. To adjust the effective movement of the pawl 37, an adjustable shield 44 is provided to prevent engagement of the pawl 37 with the disc 42 over part of the throw, and has a spring-pressed pin 48 for engagement in one of a series of holes 47 in a fixed plate 45. The screwed portions of the spindles 6 terminate at a suitable distance from the floor so that the table 8 is automatically freed therefrom when full, and is received by horizontal supports 12 situated between the screw 8 and carried by parallel pivoted links 13, the extreme members 19 of which are mounted on a shaft 20 operated by a handle 21 so as to lower the table on to a trolly 22 run into position between the support. 12s A pin 23 may be employed to secure the lever 21 in its original position. Jogging-devices are provided for registering the sheets correctly on the table 8 and comprise adjustable members 51, 55 and a reciprocating member 61. The member 51 is adjustable on a cross-bar 52 by means of a set-screw 54 and carries two depending fingers 53 against which the front edges of the sheets abut. Similar fingers 59, 62 are provided on the members 55, 61, the former of which has a stem 56 slidable in the framing 2 and secured by a set-screw 58. A similar stem 63 on the member 61 is slidable in a bracket 64 and pivoted by means of a screw-andslot connection to a lever 66 fulcrumed at 67 and having a similar connection with a bell-crank lever 70 pivoted at 71. The other end of the lever 70 is connected to a spring 76 and is operated by a chain 75 or levers from the machine 3 so as to oscillate the member 61 through the intermediate mechanism. Where large sheets are being dealt with, a number of joggers may be used, one set being situated near each end of the edge 63a of the pile.
Patent GB-313040-A (GB)
Title: Combined tub and shower bath
IPC: A47K3/20
Filed: 1929-03-19
Abstract: 313,040. Norton, H. F. June 5, 1928, [Convention date]. Baths; shower baths; accessory fittings for. - A bath 2, Figs. 1 and 5, formed at one end with a seat 5 or fitted with a removable seat 15, is fitted with a shower pipe 6 connected to the hot and cold water pipes through valves 8, and a screen 9 is provided.
Patent GB-316173-A (GB)
Title: Sheet feeding apparatus
IPC: B65H3/10
Filed: 1928-04-20
Abstract: 316,173. Broadmeyer, A., and Hickok Manufacturing Co., W. O. April 20, 1928. Divided on 317,739. Sheet - separators. - Sheets are separated from a pile and forwarded therefrom by rotating rollers 65 formed with a series of plane or fiat surfaces each having one or more ports or passages through which suction is created to separate and advance the sheets from the top of a pile. The rotary suction separator 65 is mounted on a shaft 65, and is formed with a series of suction apertures which communicate in succession with an aperture 88 in a fixed suction member 89 mounted on a hub of the suction roller 65, and connected to a pump by means of a sliding valve which is operated from a cam on the shaft of one of the sheet conveyers. The vacuum may be broken by a hand-operated relief valve when desired. An adjustable ring 80 with a slot 81 in is arranged between the suction roller and the fixed member 89, and controls the time of action of the suction members. The roller 65 may be of polygonal form as shown in Fig. 11, and the apertures 107 therein have radial nozzles 108, 109, Fig. 12, or the roller may be formed as in Figs. 5, 6 with a series of radially movable members 69 which can turn on pivots 68 arranged between the walls 66 of the roller 65, and are limited in their outward movement. The members 69 are formed with side apertures which communicate in succession with the slot 81, and with radial apertures 74 to which the sheets adhere, the successive apertures acting on different parts of the sheet to advance the same. The roller 65 is adapted to beat on the sheets and prevent double feed. To prevent premature action of the suction apertures, relief valves 112, Fig. 12, are provided which open if there is only a slight diminution of pressure in the suction member 89, but close when the member 89 is properly exhausted.
Patent GB-897893-A (GB)
Title: Combination drill bit
IPC: E21B10/54
Filed: 1960-03-14
Abstract: 897,893. Boring earth. JERSEY PRODUCTION RESEARCH CO. March 14, 1960 [Aug. 10, 1959], No. 8898/60. Class 85. A rotary bit comprises a rotary support member 25, a blade-like cutter 20 extending axially from the member, and an axially slidable shoe 22 adapted to support and protect the cutter and having a cutting part 41. The shoe is slidable on the member which has a passage 28 leading drilling fluid to an annulus 30 which is connected by ducts 186 to grooves 42 in the bottom of the shoe. During drilling of "soft" formations the cutter protrudes below the shoe. When drilling "hard" formations the pressure of the drilling fluid is increased so that the cutter is shielded by the bottom of the shoe which cuts the formation. The cutter and shoe have splines 46, 47 inclined to the axis of the bit so that downward pressure on the cutter tends to force it outwards to compensate for cutter wear. In a modification (Fig. 7 not shown) the member carries three equally spaced cutters each engaging a slot in the shoe. In the construction shown in Fig. 13, the member 84 is tubular and carries a cutter 86, the upper part of the shoe 85 sliding within the member. The cutting part 111 of the shoe which may be constituted by rollers is supplied with drilling fluid through a bore 93. The pressure on the shoe may be controlled by removing a plug 92 from the bore or by substituting a plug having a different throat diameter. In the further modification shown in Fig. 19 the plug 127 is removed by an overshot 162 when "soft" formations are drilled by the cutter 124. As shown in Fig. 24 a plug 167 may be provided the plug being removed from the bore by coupling it to a stopper 172 and reversing the circulation of drilling fluid. In yet another modification (Fig. 25 not shown) a spring loaded valve prevents flow to or from the annulus so that the cutter and shoe are not relatively movable when drilling fluid is not flowing. Specification 867,672 is referred to.
Patent GB-1377961-A (GB)
Title: Welding flux
IPC: B23K35/36
Filed: 1972-04-06
Abstract: 1377961 Submerged arc welding flux BRITISH OXYGEN CO Ltd 6 April 1972 [6 April 1971] 8900/71 Heading C7M A particulate agglomerated submerged arc welding flux contains in wt per cent 5-10 fluoride, preferably CaF 2 , 25-40 carbonate preferably CaCO 3 , 15-25 Fe, 10-20 MgO, 5-22 silicate, 0-10 bauxite, 0-4.5 deoxidant preferably Fe-Si, Fe-Mn, Mn or Si-Mn. The silicate is preferably wollastonite and a sodium and/or potassium silicate binder. The flux powder is granulated with the silicate binder.