baber/WOPTO huggingface dataset:
Patent GB-171397-A (GB)
Title: Improvements in valves
IPC: A62C31/00
Filed: 1921-11-10
Abstract: 171,397. Schworetzky, G., WerlÚ, N., and Graaff, C. Nov. 11, 1920, [Convention date]. P i s t o n valves; actuating- mechanism.-A tubular sliding valve applied to a fire-extinguisher comprises a stuffing- box f, Fig. 1, provided with two packings t, and a sliding member b provided with radial holes i<1>, an axial bore k, and a nozzle e. A space z between the packings t communicates with a pipe s for the extinguishing liquid. The valve is operated by the lever h pivoted on a pin a carried by a fixed member g. The front part of the lever is formed as a hood to cover the nozzle, and is provided with an opening x which only uncovers the nozzle when the valve is open. The hood is formed with slots w which engage with pins r to reciprocate the valve. The nozzle is protected from the entrance of foreign matter by a guard d, Fig. 2, pivoted on the pins r, and having forked ends y engaging with the pin a. The guard is operated when the handle is moved. The extension n of the valve b may open the pressure storage vessel p by means of a non-return valve. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a tube b, Fig. 1, (Cancelled), sliding in a stuffing-box f, and provided with openings i. A sleeve g supports an operating lever h which engages in slots in the lower end of the tube b. This subject-matter does not appear in the Specification as accepted.
Patent GB-758803-A (GB)
Title: Process for forming colour screens
IPC: H01J9/227
Filed: 1954-10-19
Abstract: 758,803. Colour television tubes. COLUMBIA BROADCASTING SYSTEM, Inc. Oct. 19, 1954 [Oct. 20, 1953], No. 30109/54. Drawings to Specification. Class 39 (1). The luminescent screen of a curved-mask, curved-screen colour television receiver tube is made by applying the phosphors each in a single stage by settling the phosphor through a liquid cushion, applying photo-sensitive resist material, exposing it at the appropriate angle to light passing through the mask, developing and washing away unexposed areas of resist and underlying phosphor. The screen surface is first thoroughly cleaned and covered with de-ionized water, a precipitating agent is added and a green phosphor mixed with a silicate solution is settled through the water cushion on to the screen, the silicate and the precipitating agent forming silica gel which acts as a binder. The water is decanted and a photo-sensitive resist, e.g. dichromated colloids, albumen gelatin or polyvinyl alcohol is sprayed on, baked at low temperature and exposed. Washing with de-ionized water and detergent removes unexposed resist and a weak solution of formic acid hardens the resulting screen. The process is repeated for the blue and red phosphors. The screen is finally baked, coated lightly with silicate solution, dried, and aluminized. The exposure mask is that used in the tube or a copy, and the point-source of light for the exposure may be an argon arc, placed as required in the position of the appropriate gun of the tube.
Patent GB-186853-A (GB)
Title: An electrically heated coffee making machine
IPC: A47J31/053
Filed: 1921-11-11
Abstract: 186,853. Graetz, H., and Graetz, F., (trading as Ehrich & Graetz). Nov. 11, 1921. Infusing-machines. - A coffee-making machine has an electric heater d surrounded by a porcelain or like bell e spaced apart from it to form a thin waterway f communicating at the top with the discharge pipe g.
Patent GB-383394-A (GB)
Title: Improvements in or connected with brushes
IPC: A46B5/02
Filed: 1931-10-31
Abstract: 383,394. Hand brush grips. PYMER, H., Long Stratton, near Norwich. Oct. 31, 1931, No. 30173. [Class 61 (i).] A hand brush &c. has the back A shaped with recesses B a n d hump C to fit the fingers and palm of the hand when closed to grip the brush. As applied to brushes made with the usual backs a separate fitment is provided shaped from the solid or from sheet aluminium &c. with depending flanges for screwing to the brush or with sharp projections sprung over the brush edges and driven into the back as shown in Fig. 3.
Patent GB-636393-A (GB)
Title: Improvements in or relating to motor pump systems
IPC: H02K5/132
Filed: 1946-10-10
Abstract: 636,393. Cooling electric motors. VENNING, J. D. E. Oct. 10, 1946, No. 30334. [Class 35] [Also in Group XXVIII] A motor pump system in which a threephase squirrel cage electric motor 5 and a pump 1 are coupled directly and are immersed in oil in a closed casing 3, the oil being delivered under pressure by the pump to a point of use and after use being returned to the casing, and the motor having an apertured carcase through which the oil can pass for cooling and lubrication purposes. Supply leads 7 for the motor pass to socket connections 10 in the top of the casing. An electric heater which may be thermostatically controlled may be mounted in the casing so that the temperature of the oil may be initially raised to facilitate starting or may be maintained constant during running.
Patent GB-341440-A (GB)
Title: Improvements in means for preventing and detecting leakages in pipes
IPC: F17D5/02
Filed: 1929-10-07
Abstract: 341,440. Detecting and preventing leakage at pipe joints. WAGNER, F., Mettmann, Rhineland, Germany. Oct. 7, 1929, No. 30348. [Classes 99 (i) and 99 (ii).] A sleeve 7 surrounds a joint, such as a welded joint 5, and at its ends is closed by packing g rings 8 retained by a lead filling 9, a space 24 between the pipes and the sleeve being connected by a vent pipe 25 with a road grating 28 having a bedding flange 39. The vent pipe is fitted with a perforated cap 29. A gas leakage detecting instrument may be provided. The pipe may be bedded in gravel so that gas leaking from parts other than the protected joint collects under a cowl 31 and passes upwards through the pipe 25 or a separate vent. The sleeve 7 may be divided by a longitudinal joint and the packing 8 may be retained by collars on the pipes held together by bolts.
Patent GB-717228-A (GB)
Title: Improvements in or relating to pressure responsive electric switch devices
Filed: 1952-12-01
Abstract: 717,228. Pressure actuation of switches. BENDIX AVIATION CORPORATION. Dec. 1, 1952 [Dec. 7, 1951], No. 30451/52. Class 38(5) A pressure-responsive switch for a radiosonde has a pressure-responsive cell or capsule 9 mounted on a sheet metal frame 5, a contact-carrying arm 34 pivoted on the frame, linkage 18, 19 interconnecting the capsule and arm and a flat " commutator" 38 slidably mounted on the frame for adjustment by a screw 44 engaging a threaded stud 42 projecting from the commutator. The commutator is of plastic material with an inlaid contact pattern and is held in place and guided for motion by a spring 51 which biases the commutator against guide members 52. A further spring 53 surrounds the stud 42 and engages the frame 5. The commutator is " zero-set " by means of the detent wheel 45 fixed on the screw 44 and the stud 42 is so located as to minimize the effect of changes in dimension of the commutator in response to changes of temperature. The capsule 9 may be made of a nickel-iron alloy having a zero temperature coefficient.
Patent GB-939871-A (GB)
Title: Method of bonding aluminum members
IPC: B23K20/233
Filed: 1961-08-24
Abstract: 939,871. Soldering. NORTH AMERICAN AVIATION Inc. Aug. 24, 1961 [Sept. 2, 1960], No. 30526/61. Class 83 (4). In joining aluminium members a layer of a bonding metal selected from silver, copper, gold, tin and zinc is provided on at least one of the members, the mating surfaces are brought into intimate contact and the assembly is heated to form a eutectic between the bonding metal and the aluminium members which diffuses into the aluminium members. " Aluminium " includes aluminium and aluminium base alloys. A tube and end plug of aluminium-4 to 8% aluminium oxide alloy, forming a nuclear fuel element can, are cleaned and the plug is electroplated with 10<SP>-5</SP> to 10<SP>-4</SP> inches of silver. The plug is held in the tube by a collet and the assembly is heated by induction to 1060-1100 ‹ F., between the eutectic temperature and the melting point of the aluminium alloy. Another plug is bonded similarly to the other end of the tube. Copper may be used instead of silver and in a modification an aluminium end plug is vacuum plated with silver before being bonded to the tube as before. The heating may take place in air or inert gas and the thickness of the bonding metal layer is preferably not more than 10<SP>-3</SP> inches. The members are cooled while still held in contact.
Patent GB-196317-A (GB)
Title: Improvements relating to gramophones
IPC: G10K13/00
Filed: 1921-11-16
Abstract: 196,317. Jordan, A. T. Nov. 16, 1921. C a s e s. - Relates to gramophones of the internal-horn type having a volute amplifying chamber formed by the casing walls and a curved wall d, Fig. 2, and consists in causing the top and bottom walls of the amplifying chamber to converge by means of an inclined plate g, Fig. 3, fitted as a false bottom, or by a curved plate or block. A curved piece f may be fitted in the corner.
Patent GB-670474-A (GB)
Title: Improvements in or relating to color stable gasoline composition
IPC: C10L1/10
Filed: 1949-11-29
Abstract: A gasoline composition comprises a leaded paraffinic hydrocarbon base fuel, a halogenated hydrocarbon scavenging agent, a phenylenediamine oxidation inhibitor and, as a colour stabilizer, a minor proportion of cyclohexylamine or a hydrocarbon substitution product of cyclohexylamine.  The fuel base stock may be a paraffinic virgin naphtha, an alkylate produced by reaction of isoparaffins and olefins so as to produce a non-olefinic fuel, or a hydrogenated polymer formed by polymerisation of low-boiling olefins followed by hydrogenisation.  The invention is not applicable to fuels containing substantial amounts of olefins.  The lead component may be any lead alkyl such as tetraethyllead, tetramethyllead, trimethylethyllead, dimethyldiethyllead, methyltriethyllead or triethyl-n-propyllead. The scavenging agent may be a mixture of ethylene dibromide and ethylene dichloride, or brominated benzene, toluene, xylene, trimethylbenzene or a mono-, di-, or tri-halogenated paraffin.  The conventional amounts of these agents may be used.  The preferred oxidation inhibitor is selected from the N, N1-dialkyl-p-phenylene-diamines such as N, N1-di-secbutyl-p-phenylenediamine or N, N1-di-n-butyl-p-phenylenediamine, and is used in amounts up to 4 lbs. per 5,000 gallons of gasoline composition.  Suitable colour stabilizers are cyclohexylamine and its hydrocarbon substitution products containing C1 to C8 alkyl groups on either the nitrogen or carbon atoms.  They may be used in amounts from 0.05 to 0.2 lbs. or higher per 5,000 gallons of gasoline composition (0.0002 to 0.06 weight per cent).  The invention finds particular use in the case of gasoline compositions exposed to light, which if substantially non-olefinic and containing a lead anti-knock agent, a scavenging agent and a phenylenediamine oxidation inhibitor rapidly develop a pink colour in the absence of cyclohexylamine or its hydrocarbon substitution products.  For purposes of comparison reference is made to compositions comprising (1) an isobutane-isobutylene alkylate base stock and N, N1-di-sec.-butyl-p-phenylenediamine with and without tetraethyllead and/or ethylene dibromide; (2) the same alkylate, tetraethyllead, a scavenging agent, N, N1-di-sec.-butyl-p-phenylenediamine and any of the following, namely: cyclohexylamine, cresylic acids, n-butyl-p-aminophenol, lecithin, tributylamine, pyridine, phenol, alphanaphthylamine, naphthenic acids, aniline, alpha-naphthol, tert-butyl catechol and pyrogallol; (3) virgin naphtha, tetraethyllead, a scavenging agent and any of the following, namely: N, N1-di-sec.-butyl-p - phenylenediamine, n - butyl - p - aminophenol, isobutyl-p-aminophenol, and 2, 6-di-tert.-butyl-4-methylphenol; and (4) a cracked gasoline, tetraethyllead, a scavenging agent and either 2, 6-di-tert.-butyl-4-methylphenol or N, N1-di-sec.-butyl-p-phenylenediamine.
Patent GB-1237813-A (GB)
Title: Three-axis inspection probe
IPC: G01B5/008
Filed: 1969-06-17
Abstract: 1,237,813. 813. Apparatus for measuring along three axes. LOCKHEED AIRCRAFT CORP. June 17, 1969 [June 24, 1968], No.30721/69. Headings G1M and G1N. Apparatus such as that shown in Fig. 1 movable along X and Y co-ordinates is provided with a spindle 4 which may move in a vertical Z coordinate. This apparatus is known and used as a tape programmed cutting machine, but the tape is removed in the present apparatus and replaced by an inspection tape, and the spindle 4 is provided with a special probe which is initially zeroed and thereafter moved according to the inspection tape instructions. In Fig. 4 X and Y axis displacement or swing of the probe 18 results in an arcuate motion of bearing 19 which will cause the upper rounded conical end of the probe, Fig. 5 (not shown) to move the cone 27 and plunger 33 upwardly and produce an output signal in an air transducer 35 and an air-flow tube 37, or produce a signal from a differential transformer 55, Fig. 6, comprising an excitation coil 59 energized with an A.C. carrier from a frequency oscillator 56. Oppositely wound coils 57, 58 are connected in series to a demodulator filter 62, amplifier 63 and recorder terminal 64. A Z axis displacement of the probe will be translated directly to the cone 27, the ring 38 in this case centering and sliding up into the housing 13, as in Fig.3. In operation, Fig. 7, in response to commands from the inspection tape 71 the probe 67 is moved to an inspection point and its output from its inspection sent via line 74 to an indicator-recorder 76. A limit switch 78 is caused to open if movement of the probe is excessive and this cuts the drive control. Both transducers 35 and 55 are adjusted so that the probe must be displaced by a given amount before an output signal is obtained and this permits undersized as well as oversized parts to be detected. (for Figures see next page)
Patent GB-302784-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M10/48
Filed: 1927-11-16
Abstract: 302,784. Trotter, C. M. E., (Representative of Trotter, G. H.). Nov. 16, 1927. Charge indicators; cells.-A storage battery having an opaque casing is provided with a window behind which is a chamber in communication with the electrolyte and containing specific gravity balls. As shown in Fig. 2 the chamber may be formed in one with the window 2 which is held in grooves in the cell 1 and cover 3. A projection 7 on the cover bears on the rear wall of the chamber. Fig. 4 shows a modification in which the chamber 4 is formed separately from the window and is supported on the casing 1 and battery plates 11. The window may be formed in the battery container in the manner described in Specification 285,293. According to the Provisional Specification the chamber for the specific gravity balls may be formed by providing the battery container with an integral moulded pocket situated behind the window. If the container is of celluloid the chamber may be formed by cementing the walls to the container, the latter forming the front wall of the chamber.
Patent GB-508276-A (GB)
Title: Improvements in or relating to locomotives
IPC: B61F5/38
Filed: 1938-10-25
Abstract: 508,276. Axle trucks and bogies. MASCHINENFABRIK OERLIKON. Oct. 25, 1938, No. 30883. Convention date, Nov. 1, 1937. [Class 103 (vi)] [Also in Group XXXI] A locomotive is provided with end bogies 3, Figs. 1 and 3, having guiding axles 6 and motordriven axle.s 5, at least one of the end bodies being pivoted to an intermediate bogie 8 having driving axles 7, the intermediate bogie having a pivot 9 located between its driving axle and the pivot connection 4 to the corresponding end bogie, so that when the locomotive enters a curve the guiding axles 6 adjust the leading end bogie 3 and this bogie adjusts the intermediate bogie. Where two intermediate bogies are provided, they are resiliently connected together at 11. The end bogies 3 are pivoted at 2 to guiding bogies 1. The locomotive body is supported on the bogies 8 either on the pivots 9 or on laterally-spaced supports. The draw and buffer gears are mounted on the end bogies 3. In the modification shown in Fig. 5, one end bogie 3<1> has a single guiding axle 6<1> and is pivoted to an intermediated bogie 8 coupled at 11 to the other end bogie 3. In a further modification, Fig. 4 (not shown), the locomotive is symmetrical, the right-hand half being similar to that of Fig. 5 and the left similar but reversed.
Patent GB-1381310-A (GB)
Title: Method of preparing a microporous sheet and the microporous sheet itself
IPC: H01M50/414
Filed: 1972-06-30
Abstract: 1381310 Microporous coating W R GRACE & CO 30 June 1972 [15 July 1971] 30884/72 Heading B2E [Also in Divisions C3 and H1] A laminate consists of a mat of glass fibres attached to at least one surface of a microporous sheet comprising a thermoset reaction product of a water-soluble phenol formaldehyde condensate with 1-50%, by wt of condensate, of an amine containing at least one -NH- group, e.g. monoethanolamine and/or diethanolamine. The laminate is made in the example by pouring a mixture of the resin/ amine condensate, water, silica and an acid curing agent onto a mat of glass fibres, sandwiching this mixture between two glass plates and solidifying it by heating, removing the glass plates, washing the sheet in water and then heating it to remove volatile materials therein.
Patent GB-1519690-A (GB)
Title: Phenoxyalkane carboxylic acid derivatives
IPC: A61K31/60
Filed: 1976-07-23
Abstract: Phenoxyalkanecarboxylic esters of hydroxyalkyl salicylates of the formula I are prepared by reacting a p-chlorophenoxyalkanecarboxylic acid with a hydroxyalkyl ester of salicylic acid or by reacting a hydroxyalkyl ester of a p-chlorophenoxyalkanecarboxylic acid with a salicylic acid. R2, R3 and R4 have the meaning stated in Claim 1. When R2 is hydrogen, the chlorophenoxyalkanecarboxylic acid residue for R2 can be introduced during the reaction, or the resulting compound can subsequently be acetylated. The resulting compounds display excellent antilipaemic activity while being well tolerated. <IMAGE>
Patent GB-505501-A (GB)
Title: Improvements in or relating to starting devices for internal combustion engines
IPC: F02N13/00
Filed: 1937-11-11
Abstract: 505,501. Starting. BOSCH GES., R. Nov. 11, 1937, No. 30947. Convention date Dec. 8, 1936. [Class 7 (v)] An engine is started by means of cartridges k fired electrically by current from the distributer c of the normal-running ignition system. As shown, the cartridges k are connected through a switch o to the distributer c in perallel with the sparking plugs d and starting is effected by closing a switch p connecting a battery h through a buzzer g to the low-tension winding c of the ignition magnets. The cartridges k, Fig. 2, are fired by means of a firing pin 14 and electrodes 21 embedded in an igniting agent 22 in an insulating member 20. The firing pin 14 is insulated by a sleeve 15 from members 16, 17 screwed together and fitting in a cartridge chamber i. The switches o, p may be connected for simultaneous operation.
Patent GB-289763-A (GB)
Title: An improved method for the production of cathodes for electric discharge tubes
IPC: H01J9/04
Filed: 1927-11-18
Abstract: 289,763. Vereinigte Gl³hlampen-und Elektricitõts Akt.-Ges. April 30, 1927. [Convention date]. Vacuum tubes.-Cathodes for discharge tubes are coated with electron emitting alkaline earth metals by introducing into the tube an oxide of the metal and a reducing agent such as magnesium or calcium and heating in vacuo to reduce and vaporize the metal and deposit it on the core wire of the cathode. A mixture of barium oxide or hydroxide with finely ground magnesium may be formed into a rod, compressed and attached to the side of the anode facing the cathode; a small trough for the rod may be formed in the anode. After evacuating the tube but before sealing it from the pump, the anode is heated by high-frequency induction to form and vaporize barium. The cathode core is of platinum, nickel, copper, chrome-nickel, &c. In a modification, an aqueous colloidal solution of barium or strontium hydroxide is coated on the anode and reduced by vaporization of a fragment of magnesium in the vicinity. When the anode cannot be directly heated sufficiently to vaporize the emissive metal, the necessary heat is supplied by an exothermic reaction giving products of low vapour-pressure, for example, the reduction of iron oxide by aluminium or magnesium. An excess of magnesium and iron oxide may be added to the compressed rod or colloidal solution in the above process. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following:- The emissive metals may be reduced from their halides, and may include thorium. A tungsten or molybdenum wire is preferably used as a core to receive thorium. This subject-matter does not appear in the Specification as accepted.
Patent GB-866723-A (GB)
Title: Improvements relating to ion-exchange membranes
Inventor: ARDEN THOMAS VICTOR
IPC: C08J5/22
Filed: 1956-10-11
Abstract: A cation-exchange membrane, preferably comprising finely ground cation-exchange material such as a sulphonated cross-linked polymer of styrene or a cross-linked polymer of methacrylic acid dispersed in a plastic matrix, e.g. polythene, has absorbed upon it complex cations of a quaternary ammonium compound possessing antibacterial and/or antifungal properties, such as decamethylene-bis-4-aminoquinaldinium chloride.  The membrane may be used in the moist form as a dressing or it may form the facing of a backed dressing.  The membrane is prepared by first charging the cation-exchange material with ions readily exchangeable for quaternary ammonium ions and then treating the membrane with the quaternary ammonium compound in the form of the chloride.  The exchangeable ions may be alkali-metal ions or preferably hydrogen ions from successive treatments with an acid such as hydrochloric or sulphuric acid.  In the case of the hydrogen-charged membrane the free-acid formed during the exchange reaction is preferably removed or neutralized as it is formed, conveniently by absorption on an anion-exchange resin.  The exchange may be conveniently carried out by treating the hydrogen-charged membrane with an anion-exchange resin in the free base form and a powdered quaternary ammonium salt (e.g. chloride) at least partly in solution in a mixture of methanol and water.
Patent GB-986495-A (GB)
Title: Coin-receiving arrangements in vending machines and like coin-operated mechanisms
IPC: G07F1/04
Filed: 1961-08-29
Abstract: 986,495. Coin-freed apparatus. R. L. DEAN. July 24, 1962 [Aug. 29, 1961], No. 31028/61. Heading G4V. A coin checking apparatus comprises a coin entry guide shoot 21 through which coins pass prior to reaching a coin checking means and which has a wall 22 movable,for example by pivoting, in a direction such as to open out the shoot and allow bodies trapped therein to fall clear without entering the checking means. The wall is mounted on a pivot 23 and at its lower end rests on a wall 16 of the coin checking mechanism. The wall 16 forms one side of a passage for the coins, which may be checked for deformation, magnetism or holes,and is mounted on a pivot 9 carried by a wall 12 forming the other side of the passage, a spring 20 urging the wall 16 towards wall 12. In the event of an unacceptable coin being retained between the walls,a lever 10 can be rocked about a pivot 11 to cause the head of a screw 13 to ride out of a recess in the wall 16 which is thus moved away from the wall 12 to release the unacceptable coin,a hardened steel strip 18 reducing the wear between the screw and wall. The movement of the wall 16 permits gravity to swing the wall 22 of the coin entry shoot to the position 25 shown dotted and release any obstruction which may be held in the shoot.