baber/WOPTO huggingface dataset:
Patent GB-1450479-A (GB)
Title: Colour couplers and colour photographic light-sensitive silver halide materials
IPC: G03C7/32
Filed: 1974-03-22
Abstract: 1450479 Photographic colour couplers FUJI PHOTO FILM CO Ltd 22 March 1974 [23 March 1973] 12946/74 Heading C2C [Also in Division G2] A photographic colour coupler has a triazole or diazole group having an aromatic ring fused to the 4,5-position thereof, which group is bonded to the C atom in the coupling position through the N atom in the 1-position of the triazole or diazole ring, and capable of being split off by reaction with an oxidation product of a colour developing agent. 1 - (4 - Nitrophenyl) - 3 - methyl - 4 - {(5- or 6 - ) - bromo - 1 - benzotriazolyl} - 5 - pyrazolone is prepared by refluxing ethyl α-acetyl-α- (5- or 6-bromo-1-benzotriazolyl) acetate and 4-nitrophenylhydrazine, refluxing the precipitate with methyl sodium in methanol, filtering off floating materials while warm, cooling the filtrate and adding excess hydrogen chloride saturated ethanol dropwise. 1-(4-Aminophenyl)- 3 - methyl - 4 - {(5- or 6 - ) - bromo - 1 - benzotriazolyl} - 5 - pyrazolone is prepared by reduction of the above compound with ammonium chloride and reduced iron. 1-[4-{α-(2,4- di - tert - amyl - phenoxy)acetamido} - phenyl] - 3- methyl - 4 - {(5- or 6-) - bromo - 1 - benzotriazolyl}-5-pyrazolone is prepared by refluxing the above compound in acetonitrile with α- (2,4 - di - tert - amylphenoxy)acetyl chloride. 1 - [4 - {α - (2,4 - di - tert - amylphenoxy)butyr amido}phenyl] - 3 - methyl - 4 - {(5- or 6-)- bromo - 1 - benzotriazolyl} - 5 - pyrazolone and 1 - {4 - (n - tetradecanamido)phenyl} - 3 - methyl- 4 - {(5- or 6-) - bromo - 1 - benzotriazolyl} - 5- pyrazolone are prepared similarly. N - {α- (2,4 - di - tert - amylphenoxy)acetyl} - # - bromom - aminoacetophenone is prepared by adding bromine dropwise to ice-cooled N-{α-(2,4-ditert - amylphenoxy)acetyl} - m - aminoacetophenone in anhydrous ethyl ether in the presence of AlCl 3 . N-{α-2,4-di-tert-amylphenoxy)acetyl}- # - {(5- or 6-) - bromo - 1 - benzotriazolyl} - m aminoacetophenone is prepared by adding triethylamine to the above acetophenone derivative and 5-bromobenzotriazole in acetonitrile.
Patent GB-1471822-A (GB)
Title: Substituted pyridinyl phosphonothioates
IPC: A01N57/24
Filed: 1975-03-27
Abstract: 1471822 Pesticidal phosphorus-containing pyridine derivatives DOW CHEMICAL CO 27 March 1975 [1 April 1974] 12957/75 Heading C3P  Novel compounds of Formula I where Y is O or S, R is phenyl optionally substituted by one or more of Br, Cl and F atoms and C 1 -C 4  alkyl radicals, R<SP>1</SP> is C 1 -C 4  alkyl and X<SP>1</SP>, X<SP>2</SP> and X<SP>3</SP> are Br, Cl, F, CF 3  or H, provided that at least one of X<SP>1</SP>, X<SP>2</SP> and X<SP>3</SP> is other than H and provided that, if X<SP>1</SP> is H and X<SP>2</SP> is Cl or if both X<SP>1</SP> and X<SP>2</SP> are Cl, then X<SP>3</SP> is other than Cl, may be prepared by reacting a compound of Formula II with a pyridinol of Formula III or an alkali metal salt thereof. A small amount of mercurous chloride or methylbenzylammonium chloride may be used as catalyst. The compounds of Formula I may be used to control cotton leafworm larvae and may be used as active ingredients in conventional pesticidal compositions.
Patent GB-1294250-A (GB)
Title: Circuit arrangements for telephone charge meters
Inventor: LUSCHER PAUL
IPC: H04M15/10
Filed: 1971-05-04
Abstract: 1294250 Telephone meter circuits SODECO SOC DES COMPTEURS DE GENEVE 4 May 1971 [12 May 1970] 13017/71 Heading H4K A substation meter 3 is energized by pulses of symmetrical alternating current on the line legs a, b, rectified at 2; asymmetry of alternating current on the line legs, as might occur on disconnection or from stray sources, causing a rectified output from a secondary of balanced transformer 1 and holding transistor or thyristor T 1  conductive to short-circuit the meter and prevent the counting of spurious pulses. Instead of short-circuiting the meter winding 3 the transistor or thyristor T 1  may cut off a transistor (T2) in series with the meter winding, Fig. 2 (not shown).
Patent GB-569585-A (GB)
Title: Improvements in and relating to photographic emulsions
IPC: G03C1/31
Filed: 1944-07-07
Abstract: 569,585. Photographic silver salt emulsions. COHEN, A. July 7, 1944, No. 13026. [Class 98 (ii)] A light-sensitive silver salt emulsion contains glucose syrup, soft soap, sugar and glycerine, and may be coated on a paper, silk, metal or like support, a silver image produced therein, a colloid relief image produced by treatment with bichromate, and this image transferred to a paper, silk, metal, or other support. The emulsion dissolves readily in warm water. The silver salt may be the nitrate, chloride, bromide or iodide. The production of a printing-out and a more sensitive emulsion is described. The exposed and developed emulsion is treated with a solution of a bichromate (e.g. potassium, ammonium, or sodium bichromate) slightly acidified with hydrochloric acid, and the bleached print is washed and contacted with a greased temporary support of glass or flexible paper, pressure being applied. The unhardened gelatine is dissolved by applying warm water to the back of the print and the original support is stripped off, a permanent support of paper, silk, metal, or other material is applied, and after drying the print is stripped off the temporary support.
Patent GB-1162635-A (GB)
Title: Improvements in or relating to the Manufacture of Shaped Bodies of Metal Compounds or Alloys
Inventor: WILLIAMS MICHAEL
IPC: H01L39/24
Filed: 1966-03-24
Abstract: 1,162,635. Making metallic wire strip and tape. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 15 June, 1967 [24 March, 1966], No. 13055/66. Heading B3A. [Also in Division C7] The manufacture of a shaped body, sheet or wire consisting of a metal compound or alloy which is brittle includes the steps of arranging lengths of different constituents of the compound or alloy side-by-side, mechanically working all the lengths together to form an elongated and thinned first composite body, arranging a plurality of lengths of the first composite body side-by-side, mechanically working all these lengths together so as to form an elongated and thinned second composite body, repeating the process a number of times and heating the final composite body so as to cause the resultant multi-fibres or multi-layers of the constituents to react so as to form the desired metal compound or alloy. Strips of niobium and tin of equal length and width but of thicknesses giving sufficient proportions of each constituent for forming Nb 3 Sn are stacked alternately and joined along their edges. The layers of the resultant sandwich are roll bonded, possibly with the assistance of some applied heat. The elongated sandwich is cut into a number of equal lengths, which are stacked together and roll bonded, the process being repeated until a final very thin strip, e.g. 0.003 inch, containing many times, e.g. 10<SP>5</SP>, the original number of layers. The strip may be annealed after each rolling stage. The strip is finally heated at 975 C. for a sufficient time to cause the constituent metals to react and form a superconductive compound. In a second method, niobium wires are sandwiched between aluminium tapes and rolled, cut and stacked as in the first method. As an alternative to cutting, interleaved concertina folding of the strip may be used. The final strip is heated to 1200-1600 C. to form Nb 3 Al, and has an excess of aluminium to enhance the superconductive qualities and flexibility of the strip. In a third method a bundle of niobium wires is inserted in an aluminium tube and the assembly is drawn and/or swaged down. The composite wire is cut into lengths which are then inserted in another tube, preferably of the same material and dimensions as the first, and again drawn and/or swaged. The process is repeated a number of times and the final wire is heated to form Nb 3 Al with an excess of aluminium. In a fourth method the sheet obtained by the first or second method is wrapped around an aluminium rod, the assembly encased in an aluminium sleeve and the structure reduced to the desired final diameter. Heating to react the constituent is then effected to form a superconductive compound sandwiched between normal material, which helps to stabilize the superconductor.
Patent GB-321404-A (GB)
Title: Improvements in and relating to the sealing of punctures in pneumatic tyres
IPC: B29C73/18
Filed: 1928-05-03
Abstract: 321,404. Bryce, A., and Evans, A. J. May 3, 1928. Puncture-sealing compositions.-A mixture for introducing into inner tubes for sealing punctures consisting of Cork 4-8 parts, Flowers of sulphur 2-4 parts, Tragacanth or size or other cementitious or glutinous matter ¢-1 part, mica or other flaky material 2-4 parts and water. The mixture is coloured with red-lead or coloured earth. The Tragacanth, size and cork are powdered before mixing and the pieces of mica are flakes with areas of less than #th square inch.
Patent GB-167017-A (GB)
Title: Improvements in hollow building blocks and walls constructed therefrom
IPC: E04B2/14
Filed: 1920-05-11
Abstract: 167,017. Bareth, G. K³chler-. May 11, 1920. Bricks, special shapes of.-A hollow building block for walls and partitions has one or more vault-like chambers b, closed at the sides and ends but open at the bottom and provided with hand apertures c, which are located so that they form a zig-zag ventilating path in the wall. Lateral mortar grooves d may be provided. Specification 152,902 is referred to.
Patent GB-291024-A (GB)
IPC: B65H54/58
Filed: 1928-05-03
Abstract: 291,024. Soc. pour la Fabrication de la Soie Rhodiaseta. May 24, 1927, [Convention date]. Reeling-machines. - To form hanks without fallen threads they are wound so that the apices of the diamonds on the external edges of the hank comprise an odd number and are formed only on the reel webs. The number ot vertically-opposite diamonds along the perimeter of the hank is odd and is prime with the number of leases. An example is shown in Fig. 2, the reel having five webs I - - V and there being five diamonds along the perimeter of 'the hank a<0> - - a<5> and seven leases. The reel 5, Fig. 5, has an odd number of webs, the movable webs being connected by a rod 9 to a sleeve 7 slidable on the axle 8, while the thread-guide 2 is reciprocated uniformly.
Patent GB-385187-A (GB)
Title: Improvements in or relating to high frequency electrical oscillation generators
IPC: H03B5/34
Filed: 1932-05-06
Abstract: 385,187. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Peterson, H. O. and Goddard, DeW R.; Riverhead, Long Island, New York, U.S.A.) May 6, 1932, No. 13135. Convention date, June 8, 1931. [Class 40 (v).] The frequency of a high frequency oscillator of the dynatron type is determined by a piezoelectric crystal or like resonator connected between anode and cathode of the oscillator in lieu of the tuned circuit normally so connected. The triode dynatron oscillator 8, Fig. 1, has a piezo-electric crystal 14 connected between anode and cathode and shunted by an inductance 16 and resistance 18. In Fig. 2, a screen-grid oscillator 8 having a negative resistance characteristic has a piezo-electric crystal 14 connected between anode and cathode. In the case of a pentode oscillator a similar arrangement is provided, Fig. 3 (not shown). In all cases the natural frequency of the circuit constituted by the shunting impedances 16, 46 .and the interelectrode capacities of the crystal and the valve should be less than the crystal frequency and should preferably be from 50 to 80 per cent of that frequency. The crystal may be replaced by a magnetostrictive oscillator, in which case the inductances 16, 46 constitute the coil of the magnetostrictive .device.
Patent GB-255584-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/00
Filed: 1925-05-20
Abstract: 255,584. Marks, E. C. R., (Toledo Scale Co.). May 20, 1925. Addition to 248,966. Bearings.- Relates to means of the kind described in the parent Specification for preventing the derangement of the load-pivot of a weigh beam in its bearing, and consists in the engagement of a cone pivot on the beam with a bearing-plate on the scale-pan spider. As shown, the knife-edges 4 of a beam 3 are held in their bearings 12<1> by the engagement of cone-pivots 21 on the beam with the surfaces of bearing-plates 17 disposed beneath the scale-pan spider 5. The cone-pivots and bearing-plates are adjustable to bring their points of contact into alignment with the knifeedges 4.
Patent GB-356821-A (GB)
IPC: C01D1/20
Filed: 1930-06-04
Abstract: Sodium bicarbonate and carbonate; potassium hydrate and sulphate; barium and strontium carbonates and sulphates; double sulphates.--A cyclic process for the production of soda, potassium hydroxide, and ammonium chloride from sylcinite, carbon dioxide, and ammonia consists of the following steps.  (1) The mother liquor obtained from the ammonia-soda process of step (4) and containing ammonium chloride and bicarbonate, is stirred with barium or strontium sulphate from step (5) and the barium or strontium carbonate formed is separated. (2) The mother liquor from step (1) containing ammonium sulphate is treated with sylvinite and ammonia to form a precipitate of glaserite and potassium chloride, which is separated and treated with cold water to form potassium sulphate and a solution of sodium chloride. (3) The contained mother liquors of step (2), containing sodium and ammonium chlorides, are freed from ammonia and cooled to separate parts of the ammonium chloride.  (4) The resulting liquor is treated with ammonia and carbon dioxide in an ammonia-soda process to form sodium bicarbonate or soda, the resulting mother liquor being used in step (1).  (5) The barium or strontium carbonates from step (1) is converted into the corresponding oxide or hydroxide, which is treated with water and the potassium sulphate obtained in step (2) to form a precipitate of barium or strontium sulphate, which is separated and used in step (1), and a solution of potassium hydroxide, from which the solid is obtained by evaporation.  Excess of the alkaline earth hydroxide may be used to decompose the potassium sulphate completely and is subsequently removed from the potassium hydroxide formed by precipitation as carbonate by potash.  Specification 343,691 is referred to.
Patent GB-579559-A (GB)
Title: New or improved means for sharpening the cutting cylinder blades of lawn mowers
IPC: B24B3/42
Filed: 1944-07-11
Abstract: 579,559. Lawn-mower sharpening attachments. NORTON, F. E. July 11, 1944, No. 13240. [Class 60] An attachment for sharpening the cutting cylinders of lawn mowers comprises an abrasive plate pivotally attached to, a cross-bar of the mower and means for yieldingly pressing the plate on to the blades including a screw-threaded member which is independent of the anchoring of said means. The plate 4, Fig. 3, one side of which is covered with abrasive or has abrasive incorporated therein, is pivotally mounted on a cross-bar,6 6 by means of spring- influenced hook members 8 passing through selected holes 2. The . plate is yieldingly pressed on to the blades 20 by means of a spring 11, Fig. 2, one end of which is anchored by a bolt 13 to the cross-bar, the other being fitted. with a screw 19. In a modification, the spring bears directly on the plate and is flexed to a variable extent by a screw mounted in a fixed plate carried by the anchoring bolt.
Patent GB-409901-A (GB)
Title: Improvements in or relating to the refining of hydrocarbon oil distillates
IPC: C10G45/26
Filed: 1933-05-08
Abstract: Hydrocarbons especially cracked distillates are freed from colour, gum-forming and sulphur compounds by treating in the liquid phase under elevated temperature and pressure with hydrochloric acid and a metal or metal compound as catalyst. Metals and metal compounds specified are:--iron, nickel, cobalt, zinc, copper, tin, aluminium or mechanical mixtures or alloys such as brass or bronze, ores of zinc, copper, tin, iron or lead such as Willemite, Calamine or Troostite (zinc silicates), Smithsonite (zinc carbonate), or aurichalcite (hydrated carbonate <PICT:0409901/III/1> of zinc and copper).  The gangue present in such minerals may be removed by flotation, electrical separation &c. or may be retained as an inert spacing material.  Cracked gasoline passes through a pipe coil 6 mounted in a furnace 7 and the oil emerges at a temperature of 260--345 DEG  C. and under a pressure of 27--34 atmospheres through a pipe 8 where it is mixed with a small amount of 20 per cent hydrochloric acid admitted from a pipe 19.  The mixture enters the treating tower 12 containing brass turnings or a mixture of iron and copper oxides deposited on an inert adsorbent such as crushed firebrick, pumice, sand, clay, fuller's earth or diatomaceous earth.  The mixture rises through the tower and passes to a fractionator 23 which is maintained at a lower pressure of from 3 to 7 atmospheres.  Heavy flux oils are removed through a valve 25 and the vapours pass through a condenser 28 to a receiver 31.  Finished gasoline is drawn off through a pipe 34 aqueous deposits through a pipe 36 and gases through a pipe 32. In the case of oils of high sulphur content, a series of treating towers may be used, and the sulphuretted hydrogen formed is vented at each stage whereby the formation of metal sulphides and mercaptans is prevented.  The vented gases may be passed through a bed of granulated metal and the chlorides and sulphides recovered. Hydrochloric acid may be supplied as an aqueous solution, or hydrochloric acid gas and water or steam may be admitted separately.
Patent GB-457373-A (GB)
Title: Improvements relating to saddles for cycles and the like
IPC: B62J1/02
Filed: 1936-05-12
Abstract: 457,373. Saddles. TERRY, A. V., Oakenshaw, Headless Cross, Redditch, Worcestershire. May 12, 1936, No. 13396. [Class 136 (iii)] The tension of the springs of a stretched - spring saddle top is adjusted by means of a saddle or slide member displaceably mounted between the side cheeks or fore parts of the supporting frame, the saddle or slide member having protuberances adapted to slide on the upper edges of the side cheeks, and being controlled by a screw abutting against the yoke or frontal connecting part of the frame. The front part of the saddle frame a, Figs. 1 and 2, comprises spaced enlargements a<1> between which slides a saddle or slide member c apertured at c<2> for the attachment of the tension springs d. The slide member c is pressed from sheet metal to a cupped form, and has a curved upper part c<1> provided with ears c<3> adapted to slide along the upper edges a<2> of the enlargements a<1>. The slide c is centrally apertured and provided with a fixed nut e<1> to receive an adjusting-screw e, the head e<2> of which engages, through a washer e<3>, a dished sheet-metal nose-piecef having side notches f<1> to fit over projections a4 on the inwardly-cranked end parts a<3> of the frame members a. In a modification, the member f is replaced by a transverse peak member integral with upwardly-bent front parts of the frame members a. Specifications 454,892 and 455,169 are referred to.
Patent GB-699009-A (GB)
Title: Improvements in or relating to pedestals for colliery corves or mine cars
IPC: B61D11/00
Filed: 1952-05-28
Abstract: 699,009. Vehicle-axle bearings. COLLINS, W. C. May 28, 1952, No. 13476/52. Class 12 (i). In a pedestal for colliery corves or mine cars of the kind provided with a bearing part 8 so shaped that the bearing area is maintained constant as wear occurs, grease reservoirs 7 extend horizontally on each side of the bearing portion and the edges and sides of the latter are so formed as to scrape excess lubricant from the axle and return it to the reservoirs 7, whilst the bearing surface of the pedestal is formed with a series of oblique grooves or slots 13 which constitute additional lubricant reservoirs. Channels 9, partly closed by end faces 11 on the bracket, form communication between the axle 2 and reservoirs 7. Depending flanges 10 of the pedestal bracket assist the retention of lubricant on the axle 2. The spectacle 1 is retained in position by split pins passing through transverse holes 4 in the bracket 3.
Patent GB-337429-A (GB)
Title: An improved method of and means for reproducing sound in combination with the projection of motion pictures
IPC: G03B31/00
Filed: 1929-05-01
Abstract: 337,429. Bailey, W. C., and Keefe, J. May 1, 1929. Sound - reproducing apparatus associated with kinematographs; sound grooves and traces; film-feeding mechanism; electric pickups, supporting. - Motion pictures are projected by known apparatus a from a strip b of perforated photographic film in synchronism with the reproduction of sound from a separate sound - record strip d, the latter being similarly perforated and being fed beneath sound-reproducing mechanism carried above a table e by the sprocket wheel a<3> which feeds the photographic film before it passes through the projector gate a<5>. As shown, both film b and strip d pass between rollers a, a<4>, the former having teeth engaging the perforations in the film and strip and also recesses in the roller a<4>. The receiving spools a<2>, c<1> for the film and strip are geared together. The sound-record preferably has not less than two sound tracks each having a separate pick-up device f which latter are pivoted in the same plane. The perforations on the sound-strip! are preferably on one marginal edge only. The sound-reproducing apparatus e, f, and the spools c, c<1>, are carried by a support g separate, from the stand supporting the projecting apparatus a.
Patent GB-1293729-A (GB)
Title: Method of and apparatus for sharpening small hand tools
IPC: B24B3/36
Filed: 1971-05-06
Abstract: 1293729 Grinding TEMPTOOL PTY Ltd 6 May 1971 [6 May 1970] 13552/71 Heading B3D A grinder for sharpening a tool blade 13, such as a chisel or plane blade, comprises a grinding means 4, a stripping means 5, and a tool carrier 7 movable transversely relative to the grinding and stripping means, the operative surface of the stripping means being located from the tool carrier by a distance greater than that of the grinding means whereby a blade carried by the tool carrier makes a greater angle with the stripping means than with the grinding means. In one embodiment, the grinding means and stripping means consist of wheels mounted at opposite ends of the shaft of a motor, the stripping wheel being of smaller diameter than the grinding wheel and having a surface of flexible material such as leather, Corfam (Registered Trade Mark) or other synthetic material. The tool carrier is slidable along and pivotable about a bar 6 parallel to the axis of the motor shaft and consists of a clamp for holding the tool. The casing of the grinder has a plurality of index marks 16 by which the tool can be set in the holder so as to be presented to the grinding and stripping wheels at predetermined angles. In operation, a bevel is ground or reground on the tool by the grinding wheel and the tip of the bevel is ground or lapped by the stripping wheel on movement of the carrier along the bar. In another embodiment, the grinding and stripping means are in the form of endless belts having their operative surfaces lying in parallel planes, the stripping belt being at a greater distance from the tool carrier than the grinding belt.
Patent GB-1163671-A (GB)
Title: Automatic Amusement Machine.
IPC: G07F17/38
Filed: 1967-03-23
Abstract: 1,163,671. Amusement machine. ALFRED CROMPTON AMUSEMENT MACHINES Ltd and J. E. CROMPTON. 13. Feb., 1968 [23 March, 1967], No. 13618/67. Heading A6H. An automatic amusement machine comprises an array of pivoted trays 11-14, each so balanced that when a number of coins falls into it the tray will tilt and its contents be made recoverable by the user of the machine, a slot for coins to be inserted in. the machine and a sloping way 24 down which the coins slide to a coin projecter preferably of the rotating drum type shown which is described and claimed in Specification 1163672. The trays may have different size counterweights 18-21. Coins passing through the gap 38 after hitting the baffle 37 are retained.