baber/WOPTO huggingface dataset:
Patent GB-419143-A (GB)
Title: Improvements in rotary agricultural cultivating implements
IPC: A01B33/08
Filed: 1933-05-01
Abstract: 419,143. Machines for working land; potato diggers. PICK, J. H., 11, St. Martin's, High Street, Stamford, Lincolnshire. May 1, 1933, No. 12587. [Classes 6 (i) and 6 (iii).] In a rotary digging or cultivating machine comprising tines or digging elements mounted to rotate about a common transverse axis and so as to swing laterally, the tine holders are hinged within a box frame and project outwardly through a cam slot in the peripheral wall, the slot serving to guide the holders and impart the lateral swinging movements thereto. The potato digger shown comprises two travelling wheels 1, 2 mounted on stub axles in side frame members 5. Between a central frame member 8 and the side members 5 are two slotted drumshaped box frames 9, 10 through which passes a shaft 14 driven from the wheel 2 by chain gearing. The tines 18 are detachably mounted in blocks 19 on arms 20 which are hinged on pins 21 secured in pairs of radial lugs 22 on hub members 27 fixed on the shaft 14. The arms 20 are provided with rollers 26 engaging the sides of the slots 16, 17 and rollers 23 engaging flared extensions 25 of the lugs 22. The two sets of tines alternate with one another and the two slots are so shaped that the tines commence to enter the ground when in their extreme outer position and to leave the ground when in their innermost position, passing up to and away from, or crossing and then recrossing, the central vertical plane between the boxes 9, 10. In a modification the number of tine-carrying arms 20 in each set is increased by forming the collar 27 in two pieces and providing each with a number of lugs 22, the two sets of lugs being staggered relatively to one another.
Patent GB-559495-A (GB)
Title: Liquid fuel combustion apparatus
IPC: F23D5/00
Filed: 1942-09-07
Abstract: 559,495. Re-igniting liquid fuel burners. McCOLLUM. H. J. D. Sept. 7, 1942, No. 12617. Convention date, Sept. 8, 1941. [Classes 75 (i) and 75 (iii)] A combustion chamber 10 in which a liquid fuel mixture supplied by a tube 16 travels in a helical path to a heat exchanger assembly 32 is fitted with a re-igniter consisting of a hollow member made from heat and corrosion resistant metal alloy formed with a number of small ports permitting the flow of the combustible mixture to its interior. In the form shown in Fig. 1 the re-igniter consists of a spirally coiled sheet 40 of nickel chromium alloy having the pocket between its coils opening in a direction opposite to that in which the fuel mixture flows so that the mixture tends to enter the pocket and become heated to ignition temperature if the flame is extinguished. The re-igniter is welded to the top of the tube 16 which is fitted with a conical plug 26 and is formed with inwardly punched vanes 22 causing the mixture to issue with a rotary motion The combustion chamber is fitted with a stainless steel liner 14 and with an electrical igniter 24. Fig. 4 shows a modified construction of the re-igniter consisting of a tube 48 formed with spaced perforations 50. Suitable alloys are those sold under the Registered Trade Marks "Nichrome V" and "Inconel."
Patent GB-1281115-A (GB)
Title: Improvements in or relating to apparatus for cleaning or treating articles
IPC: D06G1/00
Filed: 1970-03-16
Abstract: 1281115 Suction cleaners VIBRASUG A B 16 March 1970 [9 April 1969] 12623/70 Heading A4F [Also in Division D1] Apparatus for treating or cleaning an article permeable to fluid, such as a carpet, rug, or an article of bedding or clothing, comprises means for causing fluid to flow through a permeable member 6 having a polygonal surface for supporting an article, and means for masking at least a portion of the surface comprising two impermeable sheets 12 (one only of which is shown in Fig.4) each attached by one edge portion 13 to the member 6 and foldable about a member 15 attached to an opposite edge portion, the edge portions 13 being attached to adjacent sides of the polygonal surface. Each sheet 12 is unfolded as desired for determining the masking of the member 6 to a side of the polygonal surface opposite to one of the sides to which the two sheets 12 are attached may be attached a third sheet 12. In one embodiment the member 6 constitutes the top wall of a chamber 1 Fig.1 (not shown) connected by a conduit to a suction fan. In a further embodiment for suction cleaning and disinfecting an article the member 6 is mounted as a partition in a chamber 10 Fig.2 (not shown), an inlet of a suction fan being connected to the chamber beneath the  support 6, and a conduit for supplying disinfectant leading into a further conduit connecting the fan outlet with the chamber above the support 6.
Patent GB-721094-A (GB)
Title: Improvements in and relating to front axles for agricultural tractors
IPC: B60G3/01
Filed: 1953-05-06
Abstract: 721,094. Spring suspensions; changing wheel gauge; adjusting body height. PORSCHE, F., and ALLGAIER WERKZEUGBAU GES. May 6, 1953 [June 14, 1952], No. 12644/53. Class 108 (2). In a front axle for tractors, with means for adjusting the wheels, each of the wheel axle journals is connected with a rod which is guided in a vertically displaceable tube. In the arrangement shown, in which a front axle 2 oscillates about a frame part 1 and in which an axle tube 3 is slidable in the axle to permit variation of wheel track, a bracket 4 is secured to the tube 3 and supports bow-shaped clamping members 7, 8 which embrace a substantially vertical tube 9. The tube 9 is provided with circumferentially disposed channels 12 with which the members 7, 8 co-operate in vertically adjusted positions of the tube 9. A wheel axle journal 13 is carried by an integral rod 15 which extends into the tube 9 and is sprung by a helical spring 19, the latter bearing at one end against a plate 18 and at the other end against a ball-bearing 20. Indicating studs 21 are provided on the inwardly facing side of the tube 9 and are spaced at distances corresponding to the distances between the channels 12.
Patent GB-540513-A (GB)
Title: Improvements in swath turners or side delivery rakes
IPC: A01D78/00
Filed: 1940-08-07
Abstract: 540,513. Haymaking. BAMFORD, C. J., and BAMFORD, H. V. Aug. 7, 1940, No. 12672. [Class 6 (iii)] In a swath-turner or side-delivery rake having rotary raking elements, which include horizontal tine bars inclined to the line of draft, with mechanism for ensuring that the tines are always directed towards the ground, each tine bar of one or more of the elements is pivotally mounted on a vertical axis so that its inclination to the.line of draft can be reversed to alter the direction of work. As shown the tine bars 13 of one set of rakes are mounted on pins 15 bent to engage bosses in discs 10, 11, rotated by a hollow shaft 18 and reversible bevel gear 4 from the axle 19 or wheel of the machine. A plate 24 welded centrally on each tine bar is engaged by a plate 27 on the end of the corresponding pin 15, the plate 27 having an aperture 28 to receive a pivot pin 25 on the tine bar and a stud 29 to enter one or other of two apertures 26 in the plate 24. To alter the inclination of the tine bar, the bar is turned about the pin 25 and the stud 29 transferred from one aperture 26 to the other. For the altered inclination the direction of rotation of the rakes is reversed by means of the gear 4. In the apparatus shown there is a second set of tines supported by spiders 7 at the ends but this set must also be supported so that its inclination to the line of draft might be reversed.
Patent GB-948417-A (GB)
Title: Bismuth complex of a polysaccharide
IPC: C08B37/00
Filed: 1962-04-03
Abstract: The invention comprises a bismuth complex of a polysaccharide, and salts and derivatives thereof. Specified polysaccharide moieties are cellulose, starch, pectins, and derivatives thereof, araban, gum tragacanth, gum acacia, agar, carrageenin, linseed mucilage and extract of liquorice.  The preferred complex is sodium polybismuthyl-demethoxy pectinate. This is made by reaction of bismuth nitrate with saccharose (sucrose) to form bismuthyl saccharose, followed by double decomposition of this with demethoxylated pectin. The product containing complexed Bi(OH)3 molecules, forms a colloidal suspension in water. It is solubilised by lower polyols in alkalene medium, and reacts with thiourea, cysteine and thioglycolic acid. Polybismuthyl nitro-demethoxy pectinate is also specified. The complexes inhibit the proteolytic action of pepsin.
Patent GB-876500-A (GB)
Title: Substituted 6-deoxytetracyclines
Filed: 1959-04-15
Abstract: The invention relates to substituted 6-deoxytetracyclines having the formula <FORM:0876500/IV (b)/1> and acid addition salts thereof, wherein R1 and R2 are hydrogen, nitro, amino, cyano or halogen excepting that R1 and R2 may not both be H or halogen and when R1 is halogen R2 may not be hydrogen and vice versa; R3 is hydrogen or methyl and R4 is hydrogen or hydroxy. Specified are nitro-6-demethyl-6-deoxytetracycline, nitro-6-deoxytetracycline, amino-6-demethyl-6-deoxytetracycline, amino-6-deoxytetracycline, amino-bromo6-deoxytetracycline, amino-nitro-6-deoxytetracycline, bromo-nitro-6-demethyl-6-deoxytetracycline, amino-bromo-6-demethyl-6-deoxytetracycline and bromo-nitro-6-deoxytetracycline.  In the case of 6-demethyl-6-deoxytetracycline, nitration produces a mixture of two isomers A and B which can be separated by fractional crystallization. Specified acid addition salts are the hydrochloride, sulphate, phosphate and trichloracetate.  The nitro compounds are produced by treating the 6-deoxytetracycline with potassium nitrate and a strong mineral acid at -50 DEG C. to + 15 DEG C. The free base is obtained by adjusting an aqueous solution of the nitro compound to pH 4 to 6 with alkali such as sodium carbonate. The nitro compounds are chemically or catalytically reduced by hydrogen to the amino compound.  The catalytic reduction is by means of a noble metal catalyst such as finely divided palladium, rhodium or platinum in the form of the metal, oxide or hydroxide preferably supported on a carrier at 10 to 40 DEG C. and at hydrogen pressure of 1 to 3 atmospheres.  The chemical reduction is by means of metallic zinc or a zinc-copper couple in aqueous acid of pH at 10 to 40 DEG C.  Both the amino- and the nitro-6-deoxytetracyclines are converted to the halo-derivatives by treating with a halogenating agent such as an N-haloamide, e.g. N-bromosuccinamide, N-bromo-acetamide, N-bromo-phthalimide, N-chloro-succinimide and N-iodosuccinimide in the presence of a concentrated mineral acid at 0 DEG C. to 20 DEG C. The amino-6-deoxytetracycline may be diazotized by treatment with nitrous acid and the diazonium compound treated to form the cyano compound.  The substituted 6-deoxytetracyclines are broad spectrum antibiotics having increased resistance towards acid and alkali over the parent compounds.
Patent GB-987567-A (GB)
Title: Improvements relating to combine harvesters
IPC: A01D41/12
Filed: 1961-04-10
Abstract: The subject-matter of this specification is the same as that of Specification 987,568, but there are additional figures showing various positions of adjustment of the discharge conveyer in relation to a vehicle alongside.
Patent GB-1523232-A (GB)
Title: Electronic arragements including charge coupled devices
IPC: H04N5/217
Filed: 1976-03-31
Abstract: 1523232 Television camera ELLIOTT BROS (LONDON) Ltd 9 March 1977 [31 March 1976] 12908/76 Heading H4F For eliminating dark currents from a chargecoupled device storage arrangement, e.g. a television camera, Fig. 2, two CCD's 1, 2 are provided and data is read into the first device (mirror 17 removed) for a part of a storage period; at the end of said part storage period the contents of the two devices are interchanged, and further data may then be read into the second device (mirror 17 as shown) until the end of the storage period when the contents of the two devices are subtractively combined in differential amplifier 8. In this way, the dark current pattern of both devices occurs in each device and is eliminated at the subtraction stage.
Patent GB-726771-A (GB)
Title: Improvements in and relating to the production of heavy water
Inventor: BUSHELL WILLIAM JAMES
IPC: C01B5/02
Filed: 1943-08-10
Abstract: 726,771. Heavy water. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 2, 1944 (Aug. 10, 1943], No. 12940/43. Drawings to Specification. Class 41. Heavy water or water enriched in heavy water is made by multi-stage electrolysis, the hydrogen liberated from at least some of the intermediate cells in the train of electrolytic cells being brought into contact in exchange vessels with water in the vapour phase, in the presence of a hydrogenation catalyst for the purpose of promoting exchange of heavy hydrogen from the gas to the water vapour. The water vapour leaving each exchange vessel is condensed and fed at least in part into the cell next but one or two preceding that from which the hydrogen was taken, and the amount of water entering the exchange vessel and its content of heavy water is adjusted relative to the amount of hydrogen entering the exchange vessel and its content of heavy hydrogen, so that the water vapour leaving the exchange vessel has approximately the same composition as the water in the cell next but two or three respectively preceding that from which the hydrogen was taken. The hydrogen leaving the exchange vessel is mixed with hydrogen liberated from the preceding cell and is further contacted with water in an exchange vessel in a similar manner, and so on, with the result that its heavy hydrogen content is progressively removed in small amounts in a series of exchange vessels until it is substantially stripped of its heavy hydrogen. When pure heavy water or water very rich in heavy water is desired, the hydrogen evolved from the last few cells may be combusted with oxygen or air, and the resulting water returned to a preceding cell in the series, preferably the next but one or two preceding the cell from which the hydrogen was taken, instead of treating the hydrogen with water in an exchange tower.
Patent GB-142319-A (GB)
Title: Improvements in or relating to machinery or apparatus for washing coke, and like materials
IPC: B03B5/18
Filed: 1919-05-23
Abstract: 142,319. Jennings, A. L. May 23, 1919. Jigs.-In a jig for washing coal, coke, &c., of the type in which the water is oscillated by compressed air, the screen on which the coal &c. is supported is oscillated, so that washing is obtained for each up and down movement of the screen. Water and material are fed from a shoot e to the screen z, which is oscillated by an eccentric 12, and water is forced through the screen by air pressure controlled by a valve t operated by an eccentric 21, the parts being so arranged that the down-stroke of the screen meets the up-flow of water. The light material passes away through a shoot f, and the larger pieces of debris unable to pass through the screen collect on it and are removed through weirs 1, 3, 2, formed as shown, which are raised, thereby closing the outlet to the shoot f and allowing the debris to pass through holes 10 of the weirs to the trough g<2>, whence it is removed by the buckets n of an elevator g.
Patent GB-140653-A (GB)
Title: Improvements in the construction of ships
IPC: B63B1/04
Filed: 1919-05-23
Abstract: 140,653. Montaruli, G. V. May 23, 1919. Hulls.-Relates to ships' hulls of the type described in Specifications 121,081 and 124,661, wherein the waist is of substantially circular section and the end portions have frames the crosssection of which comprises circular segments above and below united by vertical straight lines of gradually increasing length. According to the invention, the central portion of the hull is framed upon a plane curve A, B which is interrupted at certain points, e.g. at E and F, by straight lines.
Patent GB-887759-A (GB)
Title: Steel alloys and receptacles for compressed gas made therefrom
IPC: B21D51/24
Filed: 1960-04-12
Abstract: A steel particularly suitable for the manufacture of compressed gas cylinders has the following percentage composition, by weight: .C.0,2-0,4 .Cr.1,5-3,5 .Mo.0,2-0,4 .V.0,05-0,3 .Mn.0,5-1 .Ni.0,1-1 .Si.0,01-0,35 .Fe.the balance The steel may also contain up to 0,008% B and 0,06-0,15% of one or more rare earth metals preferably added as a master alloy consisting of: .La.30-40 .Ce.40-50 .Dy.8-10 .Y.8-12
Patent GB-690667-A (GB)
Title: An electrical apparatus for the lighting of fires
IPC: F23Q13/00
Filed: 1951-06-02
Abstract: 690,667. Lighting solid fuel fires; grates., PUTTMANN, K. June 2, 1951, No. 13148/51. Class 126 In an electrical fire lighting appliance operating from the ordinary domestic supply, hollow grate bars of high heat resistance material are filled with fireproof insulating material except for a. channel against their upper surfaces in which the heating elements are housed. Solid grate bars a together with cross-pieces c form a frame in which the heating rods b are held by enclosing caps o. The contact pins e in the rear crossbar c lead into the connection box f and an asbestos-covered cable in an insulating tube g leads underneath an enclosing sheet h to the plug i. The hollow heating rods b, Fig. 3, are partially filled with fireproof insulating material, the heating elements being disposed in a channel against the upper surface of the bar.
Patent GB-478791-A (GB)
Title: Improvements relating to amplifying systems comprising electron discharge devices
IPC: H03B9/01
Filed: 1937-05-08
Abstract: 478,791. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. May 8, 1937, No. 13188. Convention date, May 8, 1936. [Class 39 (i)] An amplifying system comprises resonant circuits connected one between each pair of electrodes of a triode, the two circuits connected to each electrode having no common part other than the electrode itself. In one form, Fig. 1, the triode comprises a cathode 11 with leads 14, 15, 16, a flat grid 12 with leads 20, 21, and a flat plate 13 with leads 22, 23. Lecher wire or concentric conductor circuits may be connected between the leads 20, 15, 16, 23 and 21, 22, these circuits serving respectively as input, output, and neutralization circuits. In a modification, the lead 21 is parallel to the lead 23, and the lead 16, connected to the filament bight, is parallel to the lead 22. One of the circuits may be inside the envelope, for example, in a cylindrical triode the neutralization circuit mav be formed by a condenser and leads from it to the grid and anode. In an external anode valve, Fig. 9, having an anode portion 69 comprising grooves in which are housed filaments 71 and grids 75, the neutralization circuit is formed by a cup-shaped member 78 mounted on the grid lead 77 and forming a short-circuit condenser with the portion 60 of the anode and an inductance with the portion 69 of the anode. The input circuit is connected between the grid lead 77 and the filament lead 72 and the output circuit between the anode lead 68 and the filament lead 74. A cooling jacket 65 surrounds the anode. In a modification, an outer cylinder connected to the anode surrounds the valve and forms with an axial grid lead at one end a tuned concentric Lecher system and with coaxial split cylindrical cathode leads at the other end a similar system. The third system is formed by the inside surfaces of the split cylindrical leads and by a second coaxial grid lead. The systems are tuned by sliding bridge condensers of disc-shape.
Patent GB-364480-A (GB)
Title: Improvements in weeding implements
IPC: A01B1/18
Filed: 1931-05-05
Abstract: 364,480. Hand tools for weeding. PEART, T. G., Brack House, Malvern Road, Surbiton, Surrey. May 5, 1931, No. 13195. [Class 6 (ii).] In weeding implements comprising a pivoted grid B co-operating with a blade E, the grid is pivoted at G at its upper end to the blade of the implement, and connected at its outer end to .an operating rod A extended to the upper end of the shaft H. Guides F are provided for the rod A which is connected by a lug C and pin D to the grid.
Patent GB-250779-A (GB)
Title: Improvements in or relating to drilling in the earth, particularly in coal, shale, slate and like formations
IPC: E21B33/14
Filed: 1925-05-20
Abstract: 250,779. MacVicar, J. A. May 20, 1925. Borehole apparatus.-When boring through coal, shale, slate, &c. formations which cave in and render cementing operations necessary at the region of caving, a guide rod 3 is inserted before or immediately after the cement 6, the rod 3 being centred by cement &c. collars 4 which, are apertured for the passage of cement; the guide rod is of such size as to fit within, and guide, the core drill used for re-drilling the hole and is afterwards lifted by the core drill. Where a long guide rod is required, it is formed of internally threaded sections, Fig. 2, connected by internal wood &c. members 7, such connection being easily broken to enable each rod section to be lifted separately by the core drill; cement &c. collars 9 may be provided round the joints.
Patent GB-961472-A (GB)
Title: Flushing cisterns
IPC: E03D1/08
Filed: 1962-04-06
Abstract: 961,472. Siphon-discharged flushing cisterns. D. L. GRIFFITHS. Jan. 31, 1963 [April 6, 1962], No. 13275/62. Heading E1C. In a flushing cistern 1 having a valve member 6 movable upward to initiate siphonic action, a float 9 is connected to the member and is held in a position below the normal liquid level by means comprising a spring 10b releasable by a push button 16, so that when the liquid in the cistern 1 is at its normal level the float 9 will cause the member 6 to be raised. Said means includes a substantially vertical spindle 7 connected to the member 6, a substantially horizontal hollow housing 10 connected to the cistern 1 into which the spindle 7 is movable and in which are movable upper and lower slides 11, 12, urged towards one end of the housing by springs 13, 14 having apertures 11a, 12a disposed so that when the button 16, connected to the slide 12 which has a depending peg 17, is pushed, the aperture 11a is aligned with the spindle 7 so that it moves upward to abut the slide 12, and when the button 16 is released the aperture 12a is then aligned with the spindle 7 for it to move upward to cause the member 6 to initiate siphonic action. Stop means comprises a vertically movable peg 18 extending into the housing 10, connected at its lower end to a float 20 and having an enlarged portion 18a arranged to enter the larger end of a keyhole-shaped slot in the slide 12 to prevent movements thereof when the water level is below a predetermined level. There may be more than one spindle 7, further apertures 11a, 12a being in the slides then. The push button may be operated from a remote point.
Patent GB-133034-A (GB)
IPC: G03C7/28
Abstract: 133,034. Christensen, J. H. Sept. 20, 1918, [Convention date]. Colour photography; developing, toning, and after-treatment. - For producing dyed images, more particularly for colour photography, advantage is taken of the catalytic effect of the finely divided silver of an image, on the action of reducing agents on certain dyes. A bromide plate is dyed with oxaminechtrosa, exposed, developed, fixed, and then treated with a powerful reducing agent such as sodium hyposulphite or stannous chloride, which has the effect of bleaching the dye where the silver is deposited. The silver is subsequently removed by chromic acid or Farmer's reducer, leaving a clear colour picture. Alternatively, the development and bleaching can be effected simultaneously by treating an exposed plate in a bath containing sodium hydrosulphite and potassium bromide, the silver and any silver bromide being subsequently removed by Farmer's reducer. Alternative dyes of the dianile class are given, some of which, for example chicagoblau, require to be subsequently mordanted. Toned silver images can be treated similarly.