baber/WOPTO huggingface dataset:
Patent GB-929385-A (GB)
Title: Spark-erosion machine tools
IPC: B23H9/14
Filed: 1961-12-13
Abstract: 929,385. Spark machining electrodes; making grids. J. N. BEJAT. Dec. 13, 1961 [Dec. 15, 1960; March 9, 1961], No. 44650/61. Classes 83 (2) and 83 (4). A spark machining electrode comprises a plurality of metal strips having photo-engraved teeth along one edge, metal spacers placed between the strips, and a clamp for holding the assembled strips and spacers. The invention relates in particular to the forming of very small apertures (150 Á 25 Á) in screens (Fig. 1, not shown) used in conjunction with vapour metallization of parts of semi-conductors, electron tube grids and periodic structures for delayed wave oscillators ; the apertured screens may be made of nickel, molybdenum, tantalum, and nickel or nickel-chrome steel alloys, and the metal strips forming the electrodes are copper or molybdenum. The electrode is formed from a series of strips as in Fig. 2, by a photo-engraving process and they are assembled together with steel or copper spacers in an electrode assembly as in Fig. 3b. The spark erosion machine, Fig. 6, has a mounting fixture which clamps the screen 100 under tension. The longitudinal and transverse motions of the work table 60 are capable of extremely accurate traverse, settings being repeatable to an accuracy in the order of 1Á mm. by means of slip gauges and optical scales. A rotary table may be mounted on the work-table having a scale reading of 10 seconds of arc. By using table motions of this degree of accuracy, satisfactory screens may be made without having to produce an electrode which cuts all the required apertures at a single setting.
Patent GB-1018638-A (GB)
Title: Improvements in and relating to methods and means for maintaining confronting members in spaced relation
IPC: F16C39/06
Filed: 1964-11-03
Abstract: 1,018,638. Bearings. COMPAGNIE DES COMPTEURS. Nov. 3, 1964 [Nov. 4, 1963], No. 44768/64. Heading F2A. [Also in Division H4] A plate 13, Fig. 1 (not shown), is maintained spaced from a plate 12, by causing the plate 12 to emit sonic or ultra-sonic waves in the medium e.g. air occupying the space between the plates, the wavelength being greater than the spacing between the plates whereby a sufficient radiation pressure is produced in the medium to maintain the plates in spaced relationship. The plate 12 is fixed to a transducer 11 having excitation windings connected to an alternating current generator. The transducer 11 is of the magnetostriction or piezo-electric type in which the alternating current causes ultrasonic vibrations of the plate 12. Complementary spherical or frusto-conical surfaces 14, 15 on the plates ensure that the plates remain in lateral alignment. In a modification fixed magnet inserts provided in the plates ensure the lateral alignment. In Fig. 4b (not shown) the transducer is in the form of a ring which emits radial ultrasonic waves to maintain a shaft spaced therefrom. The transducer may be disposed in a shaft which is to be maintained spaced from a surrounding solid cylinder (Fig. 4c, not shown).
Patent GB-448897-A (GB)
Abstract: 448,897. Open fireplace grates. RADIATION, Ltd., Thimble Mill Lane, Aston, Birming- ham, and YATES, H. J., 15, Grosvenor Place, London. Jan. 30, 1935, No. 3027. [Class 126] The air supply of an updraught open firegrate is controlled by a movable flap k adapted to cover a rear portion only of the underside of the grate, the, front part of the grate being always open for the passage of air through it. The flap k shown is pivoted at its rear edge and when closed contacts with a rib m on the underside of the grate, of which it covers rather more than half. It rests on a projection n on a lever o which is pivoted on a bracket p and rocked through a link q and lever r from a handle s at the front of the grate, to raise and lower the flap. The grate a is secured to a front frame d and to a rear support f and has strips i adjustably secured to the sides to enable it to be fitted to recesses of different shapes and sizes. At the front is provided a narrow wall y forming a fuel support and formed with openings to allow the fire to be seen through it. Preferably, the front of this wall is enclosed by a perforated cover plate 8 which may be integral with or attached to the ash-pit front t. A bar 3 pivoted to the wall y may cover the top of the plate 8. A polished horizontal plate z reflects the glow visible through the front wall y. Air supply apertures in the front 5 of the ashpan are controlled by a shutter w moved towards and from them by a screw rotated by a handle x.
Patent GB-1453081-A (GB)
Title: Process for producing synthetic natural gas
IPC: C07C67/00
Filed: 1973-09-26
Abstract: 1453081 Synthetic pipeline gas AIR PRODUCTS & CHEMICALS Inc 26 Sept 1973 [12 Oct 1972] 45129/73 Heading C5E Pipeline gas is produced by partially vaporizing a crude oil feed in the presence of hydrogen at 600-1000 F.; reacting the stream of hydrogen and vaporized oil to produce an effluent consisting essentially of methane, ethane, hydrogen sulphide, hydrogen and residual aromatic hydrocarbons; removing residual aromatic hydrocarbons and hydrogen sulphide from the effluent; separating hydrogen from the methane and ethane in the purified effluent; reacting steam with ethane contained in the methane and ethane stream to produce a methane/carbon dioxide mixture; and separating carbon dioxide from the methane/carbon dioxide mixture to leave the methane. A crude oil 12 is topped to remove a naphtha of end point 360 F. and then partially vaporized by sparging preheated hydrogen from beneath the surface of a pool of the heated oil. The vaporized oil is reacted with hydrogen in a gas recycle hydrogenator (Fig. 2, not shown) at 1000- 1400 F. The hydrogen used in the vaporization and gasification of the oil is produced at 20 by partial oxidation of the unevaporated oil 42 from the vaporizer and of a portion of the residual aromatics 36 followed by a water gas shift reaction, removal of H 2  and CO 2  and methanation to remove CO. The gasification effluent 22 is cooled and a stream 44 of hydrogen sulphide and a stream 36 of aromatics are removed. The purified effluent 46 is cooled in the cryogenic separation zone 48 to separate liquefied methane and ethane from the hydrogen 52 which is recycled. The naphtha stream 18 is reacted with steam in a first catalytic rich gas reaction (Fig. 1a, not shown) to produce an effluent which is mixed with the methaneethane stream 50 and the mixture is further reacted with steam in a second catalytic rich gas reactor and then subjected to methanation followed by CO 2  removal.
Patent GB-1148408-A (GB)
Title: Improvements in or relating to the spraying and atomization of liquids and devices therefor
IPC: B05B1/26
Filed: 1966-10-12
Abstract: 1,148,408. Inhaling devices. YDEV. 12 Oct., 1966 [13 Oct., 1965], No. 45517/66. Headings A5R and A5T [Also in Division B2] A spray producer suitable for use in inhalation therapy comprises nozzle members 17, 18 mounted within a collar 19 secured to a receptable 15 containing a fluid under pressure and adapted to produce a fine jet of liquid, and a deflector plate 26 arranged to be located in the path of the fine jet by pivoting a pin 28. An inhaling bowl 21 is secured to the container by a head 22 which supports the nozzle members within the said collar. The container is provided with a built-in distributor valve. The apparatus shown in Fig. 4 may be changed to an inoperative position, Fig. 5 (not shown) by removing the member 18 and screwing the inverted bowl onto the receptacle by means of a cap (30), the plate 26 having been pivoted to a position at the side of the bowl. The plate may be mounted on a curved rod (11), Fig. 3 (not shown). In a further embodiment, Fig. 2 (not shown), the nozzle (6) discharges the fine jet at right angles to the axis of the container, and the plate (7) is adjustably mounted to direct the atomized jet in a selected direction.
Patent GB-1114699-A (GB)
Title: Improvements in or relating to pipe fittings
Inventor: SLINGSBY THOMAS JOHN LESLIE
IPC: F16L19/06
Filed: 1965-10-28
Abstract: 1,114,699. Pipe joints. WALTER SLINGSBY & CO. Ltd. 5 Dec., 1966 [28 Oct., 1965], No. 45663/65. Addition to 1,098,084. Heading F2G. An adapter 5 has a tapering seating 8 which when the adapter is screwed on to a fitting 1 causes a split collet 9 provided with wedgeshaped teeth 11 to bear against the fitting; a collar 14 is screwed on to the adapter. After inserting a pipe through the collar and adapter, the latter is screwed up to compress the collet on to the pipe to restrain the pipe against linear movement and the collar is screwed up to compress a sealing ring 12 to maintain a fluid-tight seal about the pipe.
Patent GB-1223138-A (GB)
Title: An injection-moulded plastics stencil
Inventor: RIEPE HELMUTH
IPC: B43L13/20
Filed: 1968-09-27
Abstract: 1,223,138. Injection moulding. H. RIEPE, and K. H. DITZE, [trading as RIEPEWERKE]. 27 Sept., 1968 [30 Sept., 1967], No. 46143/68. Heading B5A. [Also in Division B6] An injection moulded plastics stencil has a metal rib 3 encased in plastics along each of its longitudinal edges. Holes 4 or cut-away portions (5), Fig. 4 (not shown), are provided in the edges and extend to the ribs; they are produced during the injection process by rib supports located in the mould. The ribs may have markings and be encased in transparent plastics. Reinforcing ribs, which may encase metal ribs, may be located at the transverse edges of the stencil.
Patent GB-1439739-A (GB)
Title: Object of synthetic material and method fo moulding same
IPC: B29C33/14
Filed: 1974-10-30
Abstract: 1439739 Cushions ETABS BERTRAND FAURE 30 Oct 1974 [30 Oct 1973] 47044/74 Heading A4M [Also in Division B5] An insert 2 provided with devices 3 for mounting the moulded article to a backing is chosen to be elastically deformable so as to provide a seal against moulding material entering the locating apertures 12 for the devices 3 and to accommodate slight mismatch between the positions of the devices 3 and the apertures 12. The insert is also permeable so that moulding material 1 may penetrate thereinto to form a denser zone 5. The insert may comprise open-cell foamed material which may additionally be perforated to increase the penetration of the moulding material. The latter may be formed by casting and may be a foam material. Jute cloth may be provided at the interface between moulding material and insert. Padding for seats and head-rests may be produced.
Patent GB-1267745-A (GB)
Title: A multi-type wheel printing machine
IPC: B41J7/52
Filed: 1969-09-25
Abstract: 1,267,745. Selective printing. SOC. D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECHANIQUE. 25 Sept., 1969 [25 Sept., 1968], No. 47382/69. Heading B6F. Type-wheel machines tilting for impression.- A multi-type wheel teleprinting machine comprises a carriage 5 slidable and rotatable about a selector shaft 29, the wheels 531-536 being selectively moved in letter-space direction by a mechanism 3 and parallelogram linkage 39, 392 and 393 and the wheels being selectively rotated by the shaft 29 and selector mechanism 2. The carriage is letter-spaced by a further mechanism 4 and the wheels are tilted to effect impression by a striker carriage 6 which moves with the type-wheel carriage 5. The selector mechanisms 2 and 3 are generally similar, and the former comprises four electromagnets 281e, 282e, 283e and 284e which are operated in various combinations according to an incoming signal. At the same time a one revolution clutch drives a shaft 20 which reciprocates a lever 21. To this lever are connected two pairs of toggle links 22, 22<1>, connected to two racks 23, 23<1>, Fig. 2, engaging either side of a pinion 291 driving the shaft 29. Electromagnets 281e, 282e control a series of movable stops 241-243 sliding in a cage 24 which is movable by electromagnet 283e by a distance half that of the distance between stops 241-243. The fourth electromagnet 284e controls a switching member 26 which determines the direction of movement of the racks 23, 23<1>. Type-carriage and wheel construction.-The carriage comprises two flanges 51, 51<1> slidable and pivotable on the shaft 29 and itself bears two shafts 52, 56. Shaft 52 carries five hubs 522 and spacer washers 523. On the shoulders formed by each washer enclosed by two of the hubs 522 are five identical print members 53 comprising flanges 531, 531<1> interconnected by pins and struts 532, 533, 534. A type wheel 535 and toothed wheel 536 are riveted together and in mesh with a wheel 521 and a pinion 294 on the shaft 29. The printing members are swung for impression by a cam 641, Fig. 19, follower 621 forming a striker to engage a strut 534 of the selected print member.
Patent GB-1038808-A (GB)
Title: Improvements in or relating to dental apparatus
IPC: A61G15/16
Filed: 1964-11-20
Abstract: 1,038,808. Dental instrument holders. B. SANDRI. Nov. 20,1964 [Nov. 22,1963], No. 47420/64. Heading A5R] A dental instrument holder comprises a body 1 consisting of several like containers 114 for dental instruments (e.g. drills, syringes, &C .) and a control box 14 controlling the supply of power to the instruments, and is supported by a vertically extendable suspension means from a trolley 6 which runs on a horizontal overhead rail 7. the rail 7 being supported by either a pair of rails 8 attached to the ceiling or a horizontal arm (Fig. 6 not shown) pivotal about a vertical axis so that the position of the holder may be adjusted horizontally and vertically. The suspension means comprises a vertical cylinder 3 secured to the body 1 and a piston 4 the rod of which is connected to the trolley 6. The body is raised on supplying compressed air to the cylinder above the piston and lowered under gravity when the air in the cylinder above the piston is vented to atmosphere. Each of the containers 114 houses a rotatable pulley (Figs. 2 and 3 not shown) on which is wound an electric cable or hose carrying at one end a dental instrument which normally projects from the casing. The other end of the cable or hose is connected via an electromagnetic valve and the control box with an appropriate source of power. As an instrument is withdrawn from its container, its cable or hose unwinds from the pulley and, preferably, the electromagnetic valve is simultaneously opened to supply power to the instrument. On releasing the instrument, the pulley automatically winds up the hose or cable and returns the instrument to the container.
Patent GB-1383287-A (GB)
Title: Removal of metallic catalyst residue from polyphenylene oxide
IPC: C08G65/46
Filed: 1973-10-15
Abstract: 1383287 Polyphenylene ethers GENERAL ELECTRIC CO 15 Oct 1973 [29 Dee 1972] 47976/73 Heading C3R In a process for forming a polyphenylene ether by passing an oxygen-containing gas through a solution of a phenol in the presence of a metal ion-amine complex catalyst, the metal ion component of the catalyst is separated by contacting the reaction solution with a chelating agent for the ion to produce a metal chelate compound which is soluble in an aqueous medium and separating the chelate compound by liquidliquid extraction into an aqueous medium. In examples poly - (2,6 - dimethyl - 1,4 - phenylene) ether is obtained from 2,6-xylenol, the catalysts are complexes prepared from cupric bromide and di-n-butylamine and cupric chloride and di-n-butylamine and the copper ions are removed using as chelating agents ethylenediaminetetraacetic acid, the disodium salt of ethylenediaminetetraacetic acid, nitrilotriacetic acid and citric acid.
Patent GB-1169559-A (GB)
Title: Improvements in or relating to Electrolytic Nickel Plating
IPC: C25D3/14
Filed: 1966-10-27
Abstract: 1, 169, 559. Semi-bright nickel electro-plating. M. & T. CHEMICALS Inc. Oct.27, 1966 [Nov.1, 19651, No.48249/66. Heading C7B. Semi-bright nickel plate is electro-deposited from an aqueous acidic nickel plating bath including piperonal or piperonal substituted by a non- reactive group or groups and a water soluble acetylenic compound which acts as a levelling agent. The non-reactive substituent on the piperonal nucleus may be a saturated or unsaturated cyclic or acyclic hydrocarbon, ether, halogen, or ester group; while the acetylenic compound may include as substituents hydroxy, halogen, acetate, amide or acyloxy groups or alkoxy groups optionally substituted by one or more of hydroxy, halogen or carboxy or epoxy groups, such as butyne diol, 1-bromo-2-propyne, 1-methoxy -2-propyne, 1-formoxy-2-propyne, phenyl propiolamide, 1:2-di(#-hydroxyethoxy)-3-butyne, and 1-#-hydroxyethoxy-2-butyne-4-ol, 1:4-di(#- hydroxyethoxy)-2-butyne or the corresponding ammonium, sodium propylamine or like sulphated salts of such ethers. Preferably the electroplating bath, which may be a Watts, sulphamate, mixed Watts-sulphamate, fluoborate or chloridefree sulphate sulphamate or mixed sulphatesulphamate bath, contains per litre 0À01 to 1 g/1 of the piperonal compound and 0À01 to 0À2 g/1 of the acetylenic compound. The bath may also contain chloral hydrate, coumarin or derivatives such as an #-sulphohydrocarbyloxy coumarin semi-bright additive as in Specification 1,135,187, and surfactants such as sodium lauryl sulphate if mechanical bath agitation is used or sodium dialkyl sulphosuccinates if air agitation is employed. Soluble sulphur-containing nickel anodes may be used or with chloride-free baths insoluble lead anodes may be utilized, the nickel content being replenished by addition of nickel oxide, hydroxide or carbonate. With the use of agitation high speed plating at current densities of 120 amps/sq. dm. or more may be effected.
Patent GB-1469586-A (GB)
Title: Serial printer
IPC: B41J1/30
Filed: 1974-11-11
Abstract: 1469586 Printers INTERNATIONAL BUSINESS MACHINES CORP 11 Nov 1974 [26 Dec 1973] 48622/74 Heading G4H A serial printer comprises a movable print element mounted on a carrier itself movable past a plurality of print positions along a print line of a document, the print element having two or more arrays of type characters, each array containing all of a group of commonly used characters and part of a group of less frequently used characters, the print element and carrier being driven so that normally only one of the arrays is presented to a particular print position and other arrays are presented to successive adjacent print positions, there being a print hammer operable to effect impact of a selected type character with the document, and means responsive to the positions of the type characters in the arrays and to a character which is to be printed in a particular print position to inhibit drive of the carrier when the character to be printed is not in the next array to be presented to the print position. As disclosed, drive of the carrier is also inhibited if the distance between successive characters to be printed in their respective arrays is not large enough to allow time for hammer recovery. The print element is shown as a wheel of flexible radial tabs but may be a belt or drum instead. Index pulses from the wheel drive a type counter which indirectly drives an array counter, each character to be printed being used together with the array counter output (specifying the next array) to address a look-up table to determine if the character is in the next array and if so its position. The position of the previous character to be printed, stored in a register, is compared with the type counter output to control hammer firing. The positions of these two successive characters are subtracted, and added to the array length, the result being compared with the hammer recovery time. If there is not enough time, or the latter of the two characters is not in the next array, hammer firing is inhibited and the carrier is stopped, until printing can be resumed. Carrier velocity is always the same when the hammer is fired.
Patent GB-1431248-A (GB)
Title: Production of 1,1,3,3-substituted hydroxy indanes
IPC: C07C39/17
Filed: 1974-11-11
Abstract: 1431248 Hydroxyindanes BAYER AG 11 Nov 1974 [14 Nov 1973] 48688/74 Heading C2C The invention comprises a process for the preparation of compounds of the formula wherein: R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, which may be the same or different represent hydrogen, halogen or an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical, in addition to which R<SP>2</SP> and R<SP>3</SP>, when they are in the o-position to one another, may be taken together with the carbon atoms of the benzene ring to which they are attached to form a 5-membered carbocyclic ring, R<SP>4</SP> represents the group wherein R<SP>10</SP> and R<SP>11</SP>, which may be the same or different, represent hydrogen, an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical, and R<SP>5</SP>, R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP> and R<SP>9</SP>, which may be the same or different represent an optionally substituted alkyl, cycloalkyl, aralkyl, or aryl or R<SP>8</SP> and R<SP>10</SP> and/or R<SP>6</SP> and R<SP>7</SP> and/or R<SP>8</SP> and R<SP>9</SP> may form, together with the carbon atoms to which they are attached a cycloaliphatic ring, in addition to which R<SP>6</SP> and/or R<SP>7</SP> may also represent hydrogen, which process comprises reacting an alkylphenol corresponding to the general formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>5</SP>, R<SP>10</SP> and R<SP>11</SP> have the meanings as defined above, R<SP>12</SP> represents hydrogen, and R<SP>13</SP> represents halogen hydroxyphenyl which is optionally further substituted or the group -OR<SP>14</SP> wherein R<SP>14</SP> represents hydrogen or an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical, in addition to which R<SP>12</SP> and R<SP>13</SP> together may also represent another bond between the carbon atom to which they are attached, with an olefin containing the following group in which at least one double-bonded carbon atom contains only carbon-carbon bonds, or with a compound which yields the corresponding olefin in situ in the presence of an acid catalyst at a temperature of from 70 to 360 C.
Patent GB-1184970-A (GB)
Title: Flexible Drill String and Operating Apparatus therefor
Inventor: BRESIN SHELDON OSCAR
IPC: E21B19/22
Filed: 1968-10-15
Abstract: 1,184,970. Hose reel. NORTHROP CORP. 15 Oct., 1968, No. 48787/68. Heading B8M. [Also in Division E1] Drilling equipment, for use for example on the moon, includes a drum 16, a drill string comprising a flexible hose 17 normally wound around a helical groove 24 formed in the outer surface of the drum, the flexible hose having circumferential ridges formed in its outer surface to mate with transverse depressions 26 in the helical groove, and a plurality of longitudinallyextending passageways being provided in the flexible hose into which pressurized fluid can be pumped to operate a drill tool and to stiffen the flexible hose during drilling operations. One end of the string is attached to a chamber 18 positioned inside the drum and provided with a compressor to pump the fluid-for example an inert gas-to the drill tool at the other end of the string. The fluid passes down an inner conduit in the string and returns from the tool up the annulus between the inner and outer conduits. The inner conduit may be formed of polytetrafluoroethylene and spaced by radial ribs from the outer conduit which is formed of braided wire and covered with rubber. Roller 37 slidable on rod 34 guides the string on and off the drum. The string passes through an aperture in member 38 provided with a projection mating with a longitudinal groove 33 in the string to stop the string from rotating. The drum is rotated by electric motor 19 and may be mounted on an arm secured to the space vehicle. Core samples may be collected in a split and hinged tube placed around the string and coupled by a flexible bellows-like coupling to the surface casing installed in the top of the hole being drilled.