baber/WOPTO huggingface dataset:
Patent GB-1527664-A (GB)
Title: Lithographic plate imageable by diffusion transfer
IPC: G03F7/06
Filed: 1976-04-20
Abstract: 1527664 Lithographic plates formed by silver salt diffusion transfer MINNESOTA MINING & MFG CO 20 April 1976 [21 April 1975] 15961/76 Heading G2C A lithographic plate having an image formed by the silver salt diffusion transfer process has a metal support which has been treated with an aqueous solution of a water soluble fluoride compound of formula Xi X2 F6 in which X 1  is H, an alkali metal, an alkaline earth metal or NH 4  and X 2  is Ti, Zr, or Hf. Compounds specified are potassium hexofluoratitanate (preferred), sodium hexofluorozirconate, potassium hexafluorohafnate and ammonium hexafluorotitanate. The metal support e.g. Cu, Zn or Al, may be treated with chromic acid prior to the fluoride treatment. The deposited silver image is rendered oleophilic.
Patent GB-899882-A (GB)
Title: Method of forming uniform uncontaminated iron oxide for pigment and other uses
Inventor: CAUTERMAN PAUL ALFONS FLORENT
IPC: C01G49/06
Filed: 1959-05-11
Abstract: Iron oxide for use as a pigment is prepared by reacting an aqueous solution of ferrous sulphate with an alkali to form a suspension of ferrous hydroxide, oxidizing the hydroxide bubbling air into a suspension of the hydroxide in aqueous iron sulphate solution to form ferric oxide seeds, contacting the seeds with metallic iron in the presence of an aqueous solution of a sulphate of iron and oxygen to form a colloidal iron oxide gel and, either before oxidizing the suspension or before contacting the seeds with metallic iron, centrifuging to remove solid contaminants and oversized seeds.  The alkali may be calcium hydroxide.  Yellow seeds are obtained by oxidizing the hydroxide in ferrous sulphate solution, and red seeds by oxidizing the hydroxide in ferric sulphate solution.  An example is given.
Patent GB-1506496-A (GB)
Title: Gold plating baths
IPC: C25D3/48
Filed: 1975-04-18
Abstract: 1506496 Electo-plating gold OXY METAL INDUSTRIES CORP 18 April 1975 [19 April 1974] 16105/75 Heading C7B An aqueous Au electro-plating bath contains Au in the form of a complex, e.g. as ammonium, amine or alkali metal (Na or K) Au cyanide or sulphite, adjusted to a pH suitable for plating (at least 3.5 for cyanide or 5À5 to 10À5 for sulphite), and an amido-polyphosphate compound (ammonium or alkali metal) in sufficient quantity e.g. 1 to 100 g/l to produce a brighter deposit. Preferably the bath also contains at least 1 g/l of a polyphosphate compound, e.g. ammonium or alkali metal (Na or K) pyrophosphate, tripolyphosphate or tetrametapolyphosphate. At least 0À01 g/l of Co and/or Ni ion may be included in a cyanide complex bath to improve hardness. Other brighteners, such as hydrazine or piperazine derivatives, and As, Sb or Se ions, may be added. Alloying metals may also be present. The amidopolyphosphate compound may be made by reacting anhydrous ammonia with P 2  O 5  at 150‹C. Plating may be effected on brass panels or plastic rendered conductive by electroless plating. Examples of baths specified are Na 3 [Au(SO 3 ) 2 ], Na 2 SO 3 , NH 4  amidopolyphosphate, (optionally Na 4 P 2 O 7 , Na 5 P 3 O 10  or Na 4 P 4 O 12 ) and NaOH to pH 9(or 8À5); and KAu (CN) 2 , K 2  HPO 4  (or K 4 P 4 O 7 ), NH 4  amido-polyphosphate, (optionally CoSO 4  or NiSO 4 ), and H 3 PO 4  to pH 7 (or 4).
Patent GB-543660-A (GB)
Title: Improvements in or relating to electrical testing apparatus
IPC: G01R27/18
Filed: 1940-11-05
Abstract: 543,660. Detecting faults. CONRADI, E. S., and GALE, R. A. Nov. 5, 1940, No. 16127. [Class 37] In apparatus for testing the earthing connections of portable devices, an incandescent lamp or other indicator, such as a voltmeter, is connected in parallel with a source of current supply of which the voltage falls appreciably under a heavy load. A portable cabinet 10 has a non- reversible plug and socket 12 for connection to a mains supply, and a test lead 16 connected to a clip 18 is led through the back wall of the cabinet. The front sloping wall carries a pushbutton switch 20, an incandescent lamp 22, an ammeter 24, and a socket 26 for receiving a three-pin plug of a soldering iron or other device to be tested. Within the cabinet is a loosely coupled step-down transformer 32, Fig. 2, having its primary winding 34 connected to a contactor 38 connected to the terminals 40, 41 of the socket 12 and operated by means of the switch 20. The lamp 22 is connected in parallel with the secondary winding 36 of the transformer 32 and has one terminal 44 connected to the test lead 16 and the other terminal 46 connected through the ammeter 24 to the socket 28 for receiving the earthing pin. The clip 18 is connected to the bit or other conducting part of the device to be tested, If the earthing connection is in order a heavy current is indicated on the ammeter 24 and the secondary voltage of the transformer falls so low that the lamp 22 does not light. If the earthing connection is broken or has a fault such as several broken strands the lamp 22 lights and indicates the fault. The connection between the ammeter 24 and the lamp 22 may be earthed.
Patent GB-801530-A (GB)
Title: Production of lysine-yielding hydantoins and of lysine therefrom
IPC: C07D233/76
Filed: 1956-05-25
Abstract: The invention comprises (1) the preparation of lysine by reacting a 5-(4-halobutyl)-hydantoin with ammonia at 100 DEG C. or more and hydrolysing the mixture of hydantoins so formed; (2) an aqueous or anhydrous ammonia solution of a mixture of hydantoins of the formula: <FORM:0801530/IV (b)/1> and (3) an aqueous solution of a mixture of hydantoins of the formula: <FORM:0801530/IV (b)/2> with or without the above two hydantoins.  In the process of (1) the halobutyl hydantoin first dissolves in ammonia at room temperature to form its ammonium salt, which at 100 DEG  C. or more forms the two aminobutyl hydantoins above; if the ammonia is aqueous the hydroxybutyl hydantoins are produced as well.  The two sets of compounds can be separated on a sulphonic acid type cation exchanger which retains the aminobutyl compounds; these can subsequently be eluted with ammonia. The amount of ammonia used for the reaction may be 1-20 mol. per mol. of halobutyl-hydantoin, but is preferably 4-8 mols.  The formation of undesired secondary and tertiary amine byproducts is reduced by adding 0.1-4 mols. of ammonium carbonate, preferably 0.5-1.5 mols. The temperature may range up to 175 DEG  C. or more but 150 DEG  C. is the preferred limit.  The hydrolysis step to lysine can be effected with an acqueous acid or base in 10-100 per cent excess at 80-300 DEG  C.  Examples are given of the reactions with chlorobutyl-hydantoin, and it is stated that the bromo compound may also be used.  U.S.A. Specification 2,564,649 is referred to.
Patent GB-169233-A (GB)
Title: A new or improved process of producing photographic silhouettes
IPC: G03B15/08
Filed: 1920-06-16
Abstract: 169,233. Goetz, H. June 16, 1920. Composite photographs and silhouettes.- Silhouettes are produced by combining a negative of the subject taken against a dark background with a diapositive of the subject taken against a white background. Instead of combining separate pictures the negative taken with the white background may be printed on the negative taken with the dark background before the latter is developed. In a further modification, more especially for moving pictures, two negatives are simultaneously obtained, one through a filter of the same colour as the background, and the other through a filter of complementary colour. The first negative is equivalent to a negative taken with a white background, and the latter with a negative taken with a dark background. The silhouettes may be used for combination printing. To insert an object B into a picture A, a silhouette of the object B is combined with a negative of picture A and printed, the resultant print showing a blank portion into which a negative of the object B taken against a white background can be inserted.
Patent GB-163844-A (GB)
Abstract: 163,844. Sonsthagen, A. March 12, 1920. Disc mills.-In apparatus of the disc type for reducing chocolate &c., the disc a is formed with ribs b, d, so arranged that the material follows a zig-zag path c.
Patent GB-1348148-A (GB)
Title: Timing signal extraction circuits for example in pcm regenerative repeaters
IPC: H03K5/00
Filed: 1971-05-21
Abstract: 1348148 Clock pulse extraction circuits FUJITSU Ltd 21 May 1971 [23 May 1970] 16419/71 Heading H4P In a timing signal extraction circuit, components of half the system maximum system frequency are amplified, frequency doubled then passed to a tuned circuit to provide clock pulses. The arrangement may be used in a repeater. The basic embodiment, which is inserted at the input to full wave rectifier (4) see Fig. 1 (not shown) comprises a delay line of time T1= signal frequency period, having an output together with the equalized signal to a subtraction circuit SUB which converts the spectrum of the signal. The basic arrangement illustrated in Fig. 4 (not shown) may be followed by further pairs of delay lines alternately (2T-T1 and T1) providing one input to an addition circuit and subtraction circuit respectively, each additional pair giving a sharper frequency characteristic f 0 /2 (C, D, Fig. 6, not shown). The output at Fig. 8 is frequency doubled in the full wave rectifier (4) and passed to tuning circuit (5) in conventional manner.
Patent GB-674083-A (GB)
Title: Improved building construction
Inventor: DYER JOHN ROBERT
IPC: E04C2/04
Filed: 1949-06-22
Abstract: 674,083. Building units. RECONSTRUCTION SUPPLIES, Ltd. June 2, 1950 [June 22, 1949], No. 16550/49. Classes 20(i) and 87 (i). A building unit a, which may be of storey height, is provided at the top and bottom edges with a thickened portion d, b and at the side edges with a thickened portion c which are correspondingly shaped to form a rabbetted joint of flattened Z-form. Units are secured together by roof trusses e supported by columns formed by abutting portions c. Roof is of corrugated asbestos cement sheets f. If a unit a is of less than storey height it may be formed with a drip edge at the lower end.
Patent GB-1432991-A (GB)
Title: Process for the continuous manufacture of saturated aliphatic dicarboxylic acids
IPC: C07C51/31
Filed: 1973-04-06
Abstract: 1432991 Saturated aliphatic dicarboxylic acid CHEMISCHE WERKE HULS AG 6 April 1973 [8 April 1972] 16573/73 Heading C2C A saturated aliphatic dicarboxylic acid having from 6 to 16 carbon atoms is produced continuously by oxidizing with nitric acid in the presence of an oxidation catalyst a corresponding cycloalkanol and/or cycloalkanone flowing with the nitric acid in the form of a slurry which circulates with turbulent flow to ensure homogeneity of the slurry in a circulatory reactor having a portion constructed in the form of a cooled tube bundle, oxide of nitrogen formed as a product of the oxidation being removed from the circulating material and homogeneously dispersed by injection at a rate of flow of from 0À1 to 2 volume parts/unit time per volume part/unit time rate of flow of the circulating material (volumes being measured at reaction conditions) into the circulating material in the direction of flow thereof and at a point upstream of the reactor portion constructed in the form of a tube bundle, and the injection pressure in atmospheres of the injected oxide of nitrogen being equal to a value of from (x+0À25) to (x+1À5) where x represents the pressure in atmospheres of the circulating material at the point of injection of the oxide of nitrogen; the turbulent flow is caused by the injection of the oxide of nitrogen. The invention is exemplified by the oxidation of cyclododecanol, and of a cyclododecanol/ cyclododecane mixture, with ammonium vanadate as catalyst, and decane-1,10-dicarboxylic acid is obtained. Other suitable starting materials are cyclohexanol, trimethylcyclohexanol, tbutylcyclohexanol and cyclohexanone. A suitable apparatus is described.
Patent GB-355815-A (GB)
Title: Improved method and means for applying puncture sealing composition to pneumatic tyres
IPC: B29C73/16
Filed: 1930-05-30
Abstract: 355,815. Drills and cutters. HARDY, S. C., 30, Victoria Street, Manchester. May 30, 1930, No. 16685. [Class 83 (iii).] In a process and apparatus for inserting puncture-sealing compositions containing solid flakes or particles into pneumatic tyres, the seat e, Fig. 1, for the spring c of the valve b in the casing a is countersunk by means of a tool f, Fig. 3, having portions f, f<2> of different diameter for engaging corresponding parts of the valve casing and joined by a fluted conical part f<3>. The tool is applied to the valve casing after removal of the valve, spring, &c. and whilst still located in the wheel, and is given a few turns by means of a handle f<1>. The tool is then removed and the nozzle on the flexible connection of a hand syringe is applied to the casing, the bevelled seat e<1> allowing the sealing composition, which may contain particles such as cork, sawdust, mica, &c., to pass into the tyre.
Patent GB-744085-A (GB)
Title: Improvements in or relating to wheel tires and rims
IPC: B60B25/22
Filed: 1953-06-17
Abstract: 744,085. Pneumatic tyres. FIRESTONE TIRE & RUBBER CO..June 17, 1953 [Sept. 9, 1952], No. 16708/53. Class 144 (2). A split rim is rendered air-tight by a resilient deformable sealing ring disposed in a circumferential cavity in the path of possible air leakage between the parts of the rim. As shown, a split rim 20 carrying a tubeless tyre 10 comprises a rim base 21 having a bead-retaining flange 18 and a tapered bead seat 19 on one side and a gutter 24 on the other side, and a removable bead retaining flange 27 with a tapered bead seat 28 held on the rim base 21 by a split locking ring 32 engaged in the gutter 24, the split rim 20 being rendered air-tight by an endless sealing ring 30 housed in an annular space defined by adjacent corners of the gutter 24, removable flange 27 and locking ring 32. As shown in Fig. 6, the contour of the parts defining the sealing ring space is such as to distort the normally circular section of the sealing ring to effect an air-tight seal between the parts. The tubeless tyre 10 may have a lining 15 of butyl and pins 16, 16a extending laterally inwardly from the tyre beads 14, 14a, the fins acting as flutter valves on initial inflation of the tyre to reduce escape of air under the beads. Sealing gaskets 8, 9 of rubber strip may be mounted between the beads 14, 14a and their respective retaining flanges and seat portions of the rim. An inflation valve 37 may be screwed directly into the rim base 21 with or without rubber sealing washers therebetween. In alternative arrangements the fins 16, 16a may be tapered to a thin edge to bear either on the bead seat portions of the rim or on the rim base 21. The tubeless tyre 10 may be provided with a tyre-shaped safety diaphragm which is fitted with a flutter valve and has inextensible beaded edges to seat in and seal with channel seats formed in rubber ledges attached to the axially inner portions of the tyre beads 14, 14a.
Patent GB-801981-A (GB)
Title: Improvements in or relating to artificial flowers
Inventor: OSBORNE PETER LEE
IPC: A41G1/00
Filed: 1957-05-27
Abstract: 801,981. Artificial flowers. OSBORNE, Ltd., M. May 27, 1957, No. 16748/57. Class 63 An artificial flower has associated with it a capsule containing perfume, the walls of the capsule being of a substance which may be pierced by a pin or needle but which will subsequently reseal itself. The capsule may be made of gelatine or certain of the synthetic resins which have the property of resealing after puncture. The capsule, which may also be made very slightly porous, may be attached to the flower by melting a portion of the capsule and pressing it into contact with the flower.
Patent GB-665700-A (GB)
Title: Improvements in electric control systems for fluid-fuel-burning appliances
IPC: F23N5/10
Filed: 1949-06-24
Abstract: 665,700. Fluid fuel burner control systems. HOBERTSHAW - FULTON CONTROLS CO. June 24, 1949. No. 16873/49. Class 75(i). A control system for liquid fuel burners having main and pilot burners and a source of electric current, comprises a valve for controlling the fuel supply to the main burner and electrically operable through a switch device, electromagnetic means to hold the switch device closed but not to move it thereto, and a thermally responsive resetting device adapted under temperature changes to close the switch device, an electric heater being connected to the source to produce the temperature changes to operate the resetting device. The manual opening of a main valve 14 and the simultaneous closing of an interconnected switch 94, passes fuel to a pilot burner 20 and completes an electric circuit to a resistance heater 60 and a pilot burner igniter 86. The heater 60 expands a bellows 52 to close contacts 44, 48 and 42, 46 thus energizing an electromagnetic fuel valve 16 to supply the main and pilot burners 10 and 20. A thermocouple 50 heated by the pilot burner 20 energizes an electromagnet 26 to hold contacts 44, 48 closed. Once contacts 44, 48 are closed and while the pilot burner 20 remains ignited, a thermostat 87, responsive to room temperature, controls the operation of valve 16. A relay 78, energized upon closing contacts 42, 46, moves an arm 80 upwards to open contacts 82 and so cut off the current supply to the igniter 86. The relay 78 is held in its energized position at its front contact 84. The system described is not recycling and should the pilot burner 20 be extinguished, magnet 26 is de-energized, contacts 44, 48 are opened and valve 16 closed leaving arm 80 up. Manual operation of valve 14 and switch 94 is necessary to restart the system. In a recycling system contact 84 is omitted. Bellows 52, containing a charge of cymene, operate at temperatures above 350‹F. Specification 661,079, [Group XXXII], is referred to.
Patent GB-373797-A (GB)
Title: Illuminating nose pieces for street island platforms
IPC: E01F9/053
Filed: 1931-06-11
Abstract: 373,797. Signs. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. June 11, 1931, No. 16951. [Class 3 (ii).] The kerb of a street island platform is illuminated by boxes B flexibly connected together and secured to the ground or platform by cement or other means. The flexible connection may be a hinge H disposed in any position between two boxes, and overlapping cover-plates A may be provided to fill up the gaps between the boxes. The boxes may be internally illuminated, and may then have side openings to minimize absorption of light, or may reflect light from street lamps &c. The boxes have sloping front windows and may be curved to fit the kerb. Intermediate boxes may be non-luminous.
Patent GB-258952-A (GB)
Title: Improvements in or relating to windmills or wind motors
IPC: F03D7/02
Filed: 1926-02-22
Abstract: 258,952. McBain, W. J., McBain, A., and Howitt, H. T. Feb. 22, 1926. Regulating. - Relates to wind screws with automatically variable pitch blades wherein the blades move axially under centrifugal force and are provided with pins engaging cam grooves in the boss whereby they are rotated on their axes as they move axially. The blade A has a projection E on the root B which fits in a cam groove D in a socket C screwed into the boss and it is also provided with a central tube K with collars N, M which centralize it on a rod L. A spring T bears on the collar M and a spring G bears on a collar H for restraining the blades against centrifugal forces. A head P on the rod L is adapted to contact with a stop R when the full outward movement of the blade against the action of the spring G is reached, further movement at higher speeds resulting in the spring T coming into action.
Patent GB-356198-A (GB)
Title: Improvements in apparatus for receiving balls or rolls of sliver discharged from a sliver balling machine
IPC: D01G27/04
Filed: 1930-06-04
Abstract: 356,198. Receiving - apparatus for balls of sliver. FRASER, G., FRASER, N., and FRASER, J., Westburn Foundry, Arbroath Angus. June 4, 1930, Nos. 17112 and 20858. [Class 120 (i).] A receiver for the balls or rolls of sliver discharged from a sliver balling machine is arranged so that each roll 1, Figs. 1 and 2, discharged from the machine when deposited on the receiver is displaced axially to vacate the roll-receiving station 2 and in such displacement to impart endwise movement to a series of the rolls previously deposited, so' that the foremost roll of the series 1<1> is brought to a position where it may be conveniently picked up or is delivered from the receiver on to the floor. The receiver comprises an inclined delivery shoot 4, -spaced guide: members 3, 3<1>, 3<2> extending in a direction parallel to the axes of the rolls and a movable carriage 5 between the guide members 3 and 3<1>, 3<2> adapted to be actuated automatically by the roll to impart axial movement thereto, and to be returned to its original position after displacement of the roll. The guide members 3, 3<1> consist of a fixed bar and fixed plate respectively while the member 3<2> consists of a movable plate carried by the arm 17 of a bell-crank lever 17, 18 pivoted at 19 and under the adjustable control of a tension spring 20. The carriage 5 is slidable on guides 27 formed in the bedplate 28 and is actuated by a pawl-bar 7 reciprocated from the main shaft 13 through a bell-crank lever 12, 12<2>, the bar 7 carrying advance and reverse pawls 8, 9 engageable respectively with racks 10, 11 on the carriage 5. When the receiving position 2 is empty the reverse pawl 9 reciprocates idly over an untoothed portion 14, Fig. 1, at the end of the rack 11 while the pawl 8 reciprocates idly in the space 15 between the racks 10, 11. When a roll 1 is discharged down the shoot 4 to the position 2 it engages the guide plate 3<2> and rocks the arm 17 until it engages the stop 26. The arm 17 moves a link 24 pivoted at 23 thereto to shift the pawl-bar 7 laterally so that the pawl 8 engages the rack 10, Fig. 2, the carriage 5 advancing to the left, Fig. 1, and the roll 1 being moved by the plate 16 until its trailing face occupies the position B. The roll has then moved on to the guide 31 and the guide 3<2> relieved of its load releases the lever 17, 18 the pawl-bar 7 being moved so that the reverse pawl 9 engages the rack 11 and the carriage 5 is returned to its receiving position. The rolls may be lifted from the receiver on to a shoot down which they roll to the drawing frame. Specifications 323,416 and 329,871, [both in Class 120 (i), Spinning, Preparation &c. for], are referred to.
Patent GB-724141-A (GB)
Title: Steroids
IPC: C12P33/00
Filed: 1952-07-08
Abstract: The invention comprises 3b , 7, 11a -trihydroxy - 5 - pregnene - 20 - one and carboxylic esters thereof, and their preparation by bringing pregnenolone into contact with enzymes produced by a growing fungus of the genus Rhizopus under aerobic conditions, and if desired the 3b , 7, 11a -trihydroxy-5-pregnene-20-one thus produced is subsequently esterified with an acylating agent.  As the fungus there may be used Rhizopus arrhizus or Rhizopus nigricans.  Esters of one to eight carbon atom carboxylic acids, e.g. aliphatic, carbocyclic, cycloaliphatic, aryl, aralkyl, alkaryl and mono, di- or poly-carboxylic acids, may be produced. An example describes the production of 3b , 11a  - diacetoxy - 7 - hydroxy - 5 - pregnene-20-one.