baber/WOPTO huggingface dataset:
Patent GB-1059472-A (GB)
Title: Disc brakes
IPC: F16D55/2255
Filed: 1964-05-21
Abstract: 1,059,472. Caliper disc brakes. BENDIX CORPORATION. May 21, 1964 [May 23, 1963], No. 21118/64. Heading F2E. A spot-type disc brake comprises a fixed support on one side of the disc 11 having circumferentially spaced arms 16 (seen in plan in Fig. 2A), a caliper 10 straddling the disc, friction members 42 and 48, one, 42 being slidably disposed between the arms 16 so as to anchor on one or the other arm depending upon the direction of rotation of the disc when the brake is applied, the other, 48, being secured at 54 to the caliper which has two aligned, circumferentially-spaced ears 26 embracing the arms of the fixed support and anchoring against one or the other depending on the direction of rotation of the disc. The ears are pivoted by bolts 28 to bearing members 32 slidable in grooves 20 in the arms 16 which are parallel to the disc's axis and have convex bottoms 24; the whole of the latter assembly being protected by a sock 38. The caliper has therefore some freedom to rotate both about an axis A-A and, at a radius R, about one at right angles to A-A as shown in Fig. 2A. It is therefore possible for the friction members 42, 48 to adjust their position relative to the face of the disc when the brake is applied.
Patent GB-918770-A (GB)
Title: Type hammer mechanism for high speed printer
IPC: B41J9/10
Filed: 1959-06-19
Abstract: 918,770. Selective printing. OKI ELECTRIC INDUSTRY CO. Ltd. June 19, 1959 [June 20, 1958], No. 21212/59. Class 100 (4). A hammer mechanism for a high-speed printer, e.g. wherein the type are secured to an endless belt rotating at high speed, comprises a series of hammers 6 reciprocating at letter-space intervals in guide grooves 3, 3<SP>1</SP> and a series of hammer-return coil springs seated in separate grooves 1 and which lie in longitudinal recesses 7 in the hammers. The grooves 1 are formed in an underlying support 2 inserted between side portions 4, 4<SP>1</SP> of a channel-shaped mechanism mounting block. The hammers are retained in the grooves 3, 3<SP>1</SP> by a plate 8. Specification 918,769 is referred to.
Patent GB-730444-A (GB)
Title: Improvements in or relating to nucleotides
IPC: C12N15/10
Filed: 1953-07-31
Abstract: Diphosphopyridine-nucleotide (DPN) is purified by forming a salt therewith and a cinchona alkaloid and then splitting the salt into its components.  The salt may be formed by mixing solutions of the components or by double decomposition, e.g. from the barium salt of the nucleotide and quinine sulphate.  The splitting of the salt is achieved by passing a solution thereof through an ion-exchange resin in the acetate form, whereby the alkaloid acetate passes through and the nucleotide is adsorbed.  The latter may be eluted with a strong acid and precipitated with an organic solvent.  An example is given of the process.
Patent GB-1261744-A (GB)
Title: Method and apparatus for manufacturing composite wire products
IPC: H01F41/22
Filed: 1969-04-25
Abstract: 1,261,744. Magnetic memory elements. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. 25 April, 1969 [30 April, 1968], No. 21367/69. Heading H1H. [Also in Division C7] A magnetic wire for use, e.g. as a magnetic memory is formed by heating a tungsten wire by passing a current through it using mercury traps as contacts and (1) annealing at 3 in hydrogen at 1100‹ to 1250‹ C., (2) coating with silicon carbide by decomposing methyldichlorosilane at 4, (3) coating with Al by passing it through a molten bath 12 or in modifications Ni, Cu or Ag from plating baths or Mo, W, Ta or Nb by decomposition of a gas, and (4) coating with, e.g. 70% Fe-30% Ni by decomposing carbonyls. A magnet 25 may be used to orientate the coating.
Patent GB-673329-A (GB)
Title: Ringing and regulating device in carrier current transmission systems
IPC: H01J1/14
Filed: 1950-08-30
Abstract: 673,329. Two-way transmission; automatic volume control. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Aug. 30, 1950 [Sept. 2, 1949], No. 21416/50. Class 40 (iv). In a carrier - current transmission system in which the gain of the receive amplifier is controlled by a pilot current, ringing signals are sent by increasing the level of the transmitted pilot current, arrangements being made to prevent this increased pilot level from influencing the gain of the amplifier. The transmit terminal is shown in the upper portion of the drawing and the receive terminal in the lower portion. Go speech currents at frequency f are applied at 1,1<SP>1</SP>, modulated at 3 by carrier from source 4, and passed via channel filter 5 to the line L1. Pilot frequency F from source 6 is applied over resistors R1, R2 to the input of modulator 3. Return currents from line L2 pass via channel filter 9 to an amplifier comprising a pentode 10 and thence to demodulator 11 and L.F. ampli. fier 12. Speech currents pass through filter 14 to terminals 15, 15<SP>1</SP> and the pilot current through filter 13 to rectifier 19, which supplies A.G.C. bias to valve 10, and to rectifiers 16 feeding relay 17 which does not operate to the normal low level pilot current. To initiate ringing relay 7 is operated so that R1 and R2 are short-circuited and the pilot is trans. mitted at a high level. At the receive terminal relay 17 pulls up, operates 18 which completes a local ringing circuit (not shown), and connects R3 in the gain control circuit to maintain the bias of valve 10 at the normal order of magnitude.
Patent GB-237449-A (GB)
Title: Improvements in pressing machines
IPC: D06F71/06
Filed: 1924-09-10
Abstract: 237,449. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 10, 1924. Guards, controlling.-The lower pressing membe 7 of an ironing-machine is mounted on a carriage 9 which is reciprocated laterally by m,eans actuated by an electric motor, the pressing member 7 being raised into engagement with the stationary member 4 by fluid-pressure-actuated means, the operation of which is controlled by the electric motor. A finger guard 106 is raised and lowered during the movement of the carriage from and into ironing position by the rocking of a shaft 112 having a radial arm contacting with a depending lug on the carriage.
Patent GB-1400271-A (GB)
Title: Flowmeter including a fault indicating system
IPC: G01F15/00
Filed: 1972-05-08
Abstract: 1400271 Measuring fluid-flow MERESTECHNIKAI KOZPONTI KUTATO LABORATORIUM 8 May 1972 [21 May 1971] 21436/72 Heading G1N In a flow measuring arrangement in which flow measuring signals from a transducer 2 are fed through a line 3 to a data processor 4 and display unit 5 whose power supplies are derived from a power supply unit 6, a fault indication arrangement which, (a) responds to absence of the flow signal at 3, (b) responds to failure of the power supply at 6 and (c) does not respond to deliberate interruption of the flow. As shown the signal at 3 is fed to a monitor 11 giving a logic "1" output signal under no-fault conditions. Similarly the power supply is fed to a monitor 12 giving a "1" output when the power supply is satisfactory. These two outputs are fed to a NAND gate 13 whose output is a logical "0" if both inputs are present and a "1" under fault conditions. A metering orifice 8 which senses the existence of a flow above a minimum value provides a signal to a monitor 14 which provides a logic "1" output under flow conditions. This output together with the output from 13 is fed to an AND gate 15 connected to an indicator 16 which signifies a fault when either 11 or 12 indicate a fault, but which is over-ridden if monitor 14 indicates a deliberate shut-off. As an alternative to the metering orifice 8 signals from a regulating valve 10 and pump 9, processed through a gate 17 may feed the monitor 14 so that warning is given if either the pump fails or the valve closes.
Patent GB-532530-A (GB)
Title: Improved means for preventing leakage in liquid delivery devices
IPC: B67D3/02
Filed: 1939-07-24
Abstract: 532,530. Delivering measured quantities of liquid. NON-DRIP MEASURE CO., Ltd., BERWICK, F. W., and BERWICK, A. G. July 24, 1939, Nos. 21452, 21453 and 21455. [Class 106 (v)] [Also in Group XXIX] A device for delivering measured quantities of liquid is formed of parts easily disassembled for cleaning and the measuring chamber is sealed at the top and bottom by elements out of contact with the liquid. The device shown comprises a glass, stainless steel or synthetic resin measuring chamber 1 formed at its upper edge with a lip 2 secured by a threaded ring 5 to a cover 6 fitted with a sealing washer 7 in an annular groove out of contact with the liquid. The cover 6 is fitted with a liquid inlet tube 17 surrounded by a cork plug 47 fitting in the neck of a bottle. The bottom of the measuring chamber is apertured to receive a threaded sleeve 8 secured by a locking sleeve 33 and formed with a flange 9 similarly fitted with a sealing washer 10. An operating member constructed substantially according to Specification 455,266 and movable axially in the sleeve 8 comprises upper and lower members 12, 14 threaded together, the upper member carrying a spring-pressed valve 15 and the lower member being formed with a discharge passage 41 and provided with detachable operating arms 40. The upward pressure of a receptacle on the arms 40 first closes the liquid inlet 16 to the measuring chamber by the valve 15, next opens a valve 22 in the cover 6 to admit air to the measuring chamber by the engagement of the flanged head 20 of the member 12 with its fluted valve stem 21, and finally opens ports 28 in the member 14 for the passage of the liquid in the measuring chamber to the discharge passage 41. The arms 40 may be attached to a thimble 42 movable within limits on the member 14 and formed with a discharge passage 43 communicating with an enlargement 44 into which liquid remaining in the passage 41 collects to be ejected on the next discharge operation. The operating member is normally held with a sealing washer 30 in contact with the edge of a recess 32 in the sleeve 8 by a spring 35 arranged between a sleeve 34 on the member 14 and a ring 36 below the sleeve 8. An indiarubber ring 38 is arranged between chamfered surfaces on the ring 36 and sleeve 8 to prevent leakage. A vertical partition 49 is preferably provided in the tube 17 to prevent air lock and the valve 15 may be formed with a vertical pin 51 to break up bubble formations. Alternatively the valve 15 may have a flat top and carry the vertical partition. The bottle may be carried in a supoort described in Specification 532,531, [Group XIV]. Fig. 8 shows alternative drip-preventing means consisting of a thimble 55 slidable on the operating member and carrying a valve element 61 normally resting on the base of the operating member; when the thimble is raised the liquid passes through ports 59 to the discharge passage 58.
Patent GB-441628-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs especially suitable for printing acetate artificial silk
Filed: 1934-07-23
Abstract: Water-soluble azo dyestuffs especially suitable for printing acetate artificial silk are prepared by coupling diazotized aromatic mono-amines free from sulphonic acid groups and hydroxyl groups with 2 : 4-dihydroxyquinoline sulphonic acids or with sulphonic acids of N-alkyl substituted compounds of 4-hydroxy-2-quinolone.  In examples: (1) diazotized aniline is added to 2 : 4-dihydroxyquinoline sulphonic acid to yield a greenish yellow dyestuff; (2) diazotized aniline is added to N - methyl - 4 - hydroxy - 2 - quinolone to yield a dyestuff similar p  to the previous example but which is a trace more red; (3) paranitraniline --> N - methyl - 4 - hydroxy - 2 - quinolone, to give a greenish yellow dye.  The 2 : 4-dihydroxyquinoline sulphonic acid is prepared by adding oleum at 25 DEG  C. to dihydroxyquinoline and stirring the mass at 125 DEG  C. for four hours.  N - methyl - 4 - hydroxy - 2 - quinolone sulphonic acid is prepared from N-methyl-4-hydroxy-2-quinolone in a similar manner.  It is stated that in both cases it is probable that the sulphonic acid group occupies the 6- or 7-position.
Patent GB-635156-A (GB)
Title: Improvements in or relating to cylinder liners and sleeve valves for fluid pressure engines
IPC: F16J10/04
Filed: 1947-08-07
Abstract: 635,156. Engine cylinders; sleeve valves. WELLWORTHY PISTON RINGS, Ltd., HOWLETT, J. W., and STOKES, A. J. Aug. 7, 1947, No. 21583. [Classes 122(i) and 122(ii)] [Also in Group XXVII] A cylinder liner or valve sleeve, for use in either a cast iron or light alloy cylinder block, is made of a light alloy having a specific gravity of less than 3.3 and a coefficient of linear expansion within the range of 16 x 10<-6> to 25 x 10<-6> per degree centigrade and has at least the operative portion of its surface coated with chromium to a depth of up to 0.15 in. and indented to provide oil retaining pockets. The liner, if " wet," may have at least the portion of its external surface that is exposed to the coolant, coated with a corrosion-resistant metal or alloy to a depth of up to 0.2 in.; parts of the external surface of the valve sleeve may be similarly treated. Specifications 561,788 and 583,872, [both in Group XXXVI], are referred to.
Patent GB-822617-A (GB)
Title: Synthesis of deuterated and tritiated organic compounds
Filed: 1956-07-12
Abstract: Deuterated and tritiated hydrocarbons are prepared by reacting, in the presence of zinc, deuterium oxide or tritium oxide with a cyclic or acyclic halogeno-hydrocarbon selected from (a) saturated mono- or poly-halogeno aliphatic hydrocarbons, the latter having at least two non-vicinal halogen atoms, and (b) unsaturated mono- or poly-halogeno aliphatic hydrocarbons having at least one halogen atom attached either to a saturated carbon atom or a carbon atom in a conjugated system of double bonds; the halogen substituents(s) should be chlorine, bromine or iodine and the term "aliphatic" includes "cycloaliphatic."  The halogeno-hydrocarbon preferably boils above 35 DEG  C. but may be a gas.  Vicinal halogen atoms react conventionally to give an unsaturated linkage, halogen attached to unsaturated or aromatic carbon atoms (other than conjugated unsaturation) do not react. Preferred compounds are allylic, XCHR.CH : CR1R11, or propargylic, XCHR. : CCR1 in which X is chlorine, bromine or iodine and R, R1 and R11 are hydrogen or alkyl radicals.  An inert solvent may be used such as an ether, e.g. dioxane, a hydrocarbon, e.g. benzene, an unreactive halogeno-hydrocarbon, e.g. perchloroethylene, or excess of the halogeno - hydrocarbon being used.  The examples illustrate the following preparations: (1) CD4 from carbon tetrachloride; (2) CH3. CHD2 from 1,1-dibromoethane; (3) CH2 : CD. CD : CD2 from hexachlorobutadiene; (4) CH2 : C : CHD and CH2D.C \sn CH from chloropropadiene opargyl chloride); (5) CH2 : C : CD2 and CH2D.C \sn CD from 1,3-dichloropropyne; (6) CHD : C : CHD from 1,2,3,3-tetrachloropropene-1; (7) CHD : C : CD2 and CHD2.C \sn CD from 1,1,2,2,3,3,3-heptachloropropene; (8) CD2 : C : CD2 and CD3.C \sn D from hexachloropropene; (9) CH2D.CH : CH2 from allyl chloride or bromide; (10) CH3.CH2D from ethyl iodide; (11) CH3.CD3 from 1,1,1-trichloroethane; (12) CH3D from methyl iodide; (13) CH2D2 from methylene bromide; (14) CHD3 from chloroform; (15) CD3.CH2.CH : CH2 from 1,2-dibromo-4,4,4-trichlorobutane; (16) cyclopentadiene-d6 from hexachlorocyclopentadiene; (17) methane-t4 from carbon tetrachloride.
Patent GB-1337863-A (GB)
Title: Steel bath injection method
IPC: C21C7/06
Filed: 1971-04-19
Abstract: 1337863 Deoxidizing steel OVAKO O Y 19 April 1971 [11 Feb 1970] 21617/71 Heading C7D A deoxidizing agent which is Ca-Si, Ca-Si-Mn or Ca-Ba-Si is injected into a steel bath in a ladle using a carrier gas (e.g. N 2 , Ar or CO 2 ). The agent is preferably in powder form and the injection preferably made in the middle of the ladle near the bottom thereof.
Patent GB-520575-A (GB)
Title: Production of multi-colour photographic images
IPC: G03C7/28
Filed: 1938-07-21
Abstract: 520,575. Colour photography. GASPAR, B. July 21, 1938, No. 21653. [Class 98 (ii)] [Also in Group IV] In the production of multi-colour images photography by a process which involves the conversion of a potential dye body into a dye image, there is used a multi-layer material comprising a plurality of superimposed silver halide emulsion layers in one of which is an insoluble salt formed from a filter dye and a potential dye body, i.e., a substance convertible into a dye such as a soluble derivative of a dye or a dye component. Thus the salt may be formed by combining a basic filter dye with a substance so convertible containing a salt-forming acid group or by combining an acid filter dye with a substance so convertible containing a salt-forming basic group. Specified basic filter dyes are Auramine, Thioflavine T. Pyronine B, Rhodamines B and S. 10-methyl-9-(p-dimethylaminobenzylidene-methyl) acridinium methylsulphate and 10-methyl-9-(p-dimethylaminocinnamylidene - methyl) - acridinium methyl - sulphate and specified acid filter dyes are Chrysophenine G and methenyl-bis-(1-p-sulphophenyl-3-methyl-5-pyrazolone) (cf. Specification 506,385). As substances convertible into dyes are specified azo dye components, such as amines, e.g. benzidine, phenols and compounds containing a reactive methylene group and an acid radicle, soluble derivatives of leuco vat dyes, the bisulphite and aldehyde-bisulphite derivatives of azo dyes (cf. Specification 496,559), the # - sulphonic acids or sulphaminic acid salts of polyazo dyes, the bisulphite compounds or hydrazones of azo dyes containing aldehyde or ketone groups or the bisulphite or aldehyde-bisulphite compounds or acid esters of dye-forming substances (cf. Specification 510,884). In an example use is made of three superimposed silver halide layers, the first layer being blue-sensitive and containing, if necessary, a colourless potential dye body to yield yellow, e.g., acetoacetanilide, the second layer being green-sensitive and containing the salt of 1-(4<SP>1</SP>-sulpho) phenyl-3-methyl- 5-pyrazolone with Auramine and the third layer being red-sensitive and containing a salt of 5 : 7- dibromo-8-hydroxyquinoline with a sulphonic acid of Rhodamine. The Provisional Specification gives further indications of possible arrangements of the layers. 10-methyl-9-(p-dimethylaminobenzylidene-methyl)-acridinium methylsulphate and 10-methyl-9-(p-dimethylaminocinnamylidene-methyl)-acridinium methylsulphate are obtained by reaction of p-dimethylaminobenzaldehyde and p-dimethylaminocinnamaldehyde respectively with 9:10-dimethylacridinium methylsulphate by heating under reflux in presence of a small quantity of acetic anhydride.
Patent GB-597674-A (GB)
Title: Improvements in and relating to radio receivers
IPC: H03J5/24
Filed: 1945-08-24
Abstract: 597,674. Radio receiving apparatus. COLE, Ltd., E. K., and BURNARD, C. L. Aug. 24, 1945, No. 21679. [Class 40 (v)] In a radio receiver with a number of continuous tuning ranges, the wave-range selecting switch includes an additional position in which predetermined wave-lengths may be selected under push-button control. In positions 1-6 of the ganged switch B, the set is tuned to short-wave ranges by means of the ganged variable inductances L3, 12 in conjunction with the shunt inductances L4-8 and L13-17 and condensers C12, 50 and C23, 28 respectively The positions 7 and 8 cover medum and long waves, using the fixed inductances L1, 11 and L2, 10 respectively and the ganged variable condensers C10, 11. In position 9 the condensers C10, 11 are replaced by the preset condensers C5-9 and inductances L18-22 as chosen by the push-button switches PB1-5. In a further position 10 the tuning means are disconnected and the grid of the valve V1 grounded to permit of gramophone reproduction.
Patent GB-796532-A (GB)
Title: Improvements in or relating to ignition harness for internal combustion engines
IPC: F16L3/223
Filed: 1956-07-13
Abstract: 796,532. Cable harness. FORD MOTOR CO., Ltd. July 13, 1956 [Sept. 16, 1955], No. 21687/56. Class 36. An ignition harness for an internal combustion engine comprises a sheet-metal support 11 having slotted circular openings 13 for the reception of cables 17 each composed of a conductor 19 and elastomer insulation 18 with an elastomer grommet 20 moulded thereon formed with a peripheral groove 22 which is forced past the neck of the opening 13 to be firmly gripped in the circular portion thereof.
Patent GB-217020-A (GB)
Abstract: 217,020. Johnson, J. May 16, 1923. Systems, electric; preventing ignition or damage to ignition apparatus on accidental reversal of engine.-A device which prevents reversal of the engine, unless the ignition lever is re-set for that purpose, is actuated from a countershaft shaft 14 driven from the engine shaft 4. To the shaft 14 is secured a plate member 29 which carries contacts 36, 35 either of which, according to the direction of engine rotation, may be brought into engagement with similar contacts 38, 37, mounted on the reduced end of a cylinder 24 of insulating material. In the periphery of this cylinder are mounted a broad contact 28 and narrower contacts 42, 41, one of the latter pair being adjacent to each edge of the cylinder. The contacts 42, 41 are in connection radially with the bars on which the contacts 38, 37 are mounted. The broad contact 28 is in electrical connection with a contact 27 in the reduced portion of the cylinder. Extensions 31, 32 on the plate 29 carry a bridge-piece 33 on which is mounted a brush 34 which may be caused to engage the contact 27. To the timing lever 21, Fig. 2, is fastened an L-shaped bracket 45 carrying the insulating support for a pair of conducting strips 47. 48. By moving the lever 21 the brushes 49, 50 at the ends of these strips 47, 48 engage the contacts 42, 41, respectively. Current thus passes from an external source by way of a ball-contact 54 to one of the strips 47, 48, and the corresponding brushes 49, 50, contacts 42, 41, pairs of contacts 38, 36 and 37, 35 to the plate 29 and thence by the mass of the engine back to the source of current. Rotation of the engine causes the closure of one pair of contacts, and although reversal of the engine brings about the separation of this pair and the closure of the other pair, no current passes unless the lever 21 is re-set to bring the other strip 47 or 48 into engagement with the contact 54. On such re-setting of the actuating lever, however, the first effect is to cause the brush 34 to sweep over the contact 27, thereby producing the initial ignition for the reversed drive of the engine.