baber/WOPTO huggingface dataset:
Patent GB-501413-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B53/10
Filed: 1937-08-26
Abstract: 501,413. Valves for pumps. HYDRAULIC ENGINEERING CO., Ltd., and RHODES, G. C. Aug. 26, 1937, No. 23392. [Class 135] The seating rings e and h of suction and discharge valves of a pump are loosely inserted in bores c<1>, c<2> of different diameters in the valve box or casing and maintained in position by retaining members f and k subjected to the loading of springs g and l respectively. The valves are in the form of discs a and b guided in recesses in the retaining members and the delivery valve b is loaded by a spring k<1>.
Patent GB-825421-A (GB)
Title: Improved antistain agents for colour photography
IPC: G03C1/053
Filed: 1956-07-30
Abstract: N - b  - Aminoethylgentisamide is prepared by adding methyl p genatisate to ethylene diamine. By using 1:3-diaminopropane, N-g -amino-propylgentisamide is obtained.  N - b  - Hydroxyethylhomogentisamide is prepared by adding homogentisic lactone to ethanolamine in methyl alcohol. Specifications 2562/13, [Class 98(ii)], 524,154, 541,589, 557,750, 557,802, 711,488 and 767,028, [all in Group XX], and U.S.A. Specification 2,356,486 also are referred to.ALSO:Polymers are described which contain from 50 to 2000 units of the formula -CH2-R-CH(COOH)-or of a styrene-itaconic anhydride interpolymer, and from 50 to 2000 of such units esterified by reaction of the -COOH group with a compound of the formula <FORM:0825421/IV (a)/1> wherein R is <FORM:0825421/IV (a)/2> A is H, alkyl or halogen, B is H or alkyl, Z is -O- or -NH-, n is 1 to 6 and m is 0 or 1.  Preparations are described wherein styrenemaleic anhydride interpolymer is reacted with N - b  - hydroxyethyl - gentisamide, N - b -aminoethyl - gentisamide, N - g  - aminopropylgentisamide or N - b  - hydroxyethyl - homogentisamide, or wherein N-b -aminocthyl-gentisamide is reacted with a vinyl butyl ether-maleic anhydride interpolymer, a vinyl toluene-maleic anhydride interpolymer, a styrene-itaconic anhydride interpolymer, a dichlorostyrene-maleic anhydride interpolymer, a styrene-citraconic anhydride interpolymer, or polyacrylic anhydride.  In these preparations, the polymers are dissolved in dry pyridine and the gentisamide derivative added with heating and stirring, in most cases in an atmosphere of dry nitrogen.  In some cases the product is hydrogenated with zinc and hydrochloric acid to ensure the hydroquinone-type structure. Specifications 2562/13, [Class 98 (ii)], 524,154, 541,589, 557,750, 557,802, [all in Group XX], 711,488 and 767,028, and U.S.A. Specification 2,356,486 also are referred to.
Patent GB-712125-A (GB)
Title: Process for increasing the strength of unalloyed or alloyed steel bars and tubes
IPC: C21D7/02
Filed: 1951-10-08
Abstract: 712,125. Altering physical structure. SCHWARZ, J. Oct. 8, 1951 [Oct. 13, 1950], No. 23402/51. Classes 83 (2) and 83 (4) A process for increasing the strength of unalloyed or alloyed steel bars and tubes is characterized in that commercial steel sections or the like are alternately slightly cold drawn and cold hammered by means of cheeks fitting to the cross-section of the steel section in one or. more transits. Commercial rolled bar steel is according to the invention, first cold drawn, then coldcompressed by hammering, pressing or transverse rolling and then annealed at about 500 to 700‹ C. to eliminate internal tensions and prevent skin brittleness in order to facilitate cold bending and other deformations, e.g. rolling screw threads, splines, grooves &c. The steel may be annealed after drawing and before cold compression. The process may be repeated until no increase in strength is produced the final strength being about twice the original strength of the bar and the outer layer of the steel bar may be smoothed by a final cold drawing operation. When using steel bar which hardens under heat treatment, e.g. high carbon steel, the bar, after subjecting it to the above process, is finally hardened by heat treatment. This increases the strength by 10-20 Kg/mm<SP>2</SP>. The last cold compression may be repeated several times with the same cheek formation in order to obtain smooth round steel bars and to avoid a final drawing operation. In the first transit of cold compression the diameter of a 10 mm. bar is reduced 5-10 per cent, in the second transit 1 per cent and about 0.02 per cent in the third transit. Tubes are strengthened according to the invention by first annealing and then cold hammering the tube on a mandrel and thereafter externally and internally drawing or burnishing the tube. This process may be repeated several times so that the inner wall of such tubes is more strongly compressed than the outer wall and annular compressive stresses are formed in the direction of the inner wall said stresses being counter-balanced by annular tensile stresses in the outer tube wall making such tubes suitable for conveying fluids under pressure. The mandrel may be withdrawn in the cold compression and drawing so that the tube is compressed into a solid steel rod which may be used as a draw bar. By annealing the outer regions of the cross section of tubes or rods treated as above the tubes or rods may be used as reinforcing irons for concrete and the like or shafts or other structural parts of machines. The strength of normal un-alloyed rolled steels can in this way be increased with a single transit from 40-60 Kg/mm<SP>2</SP> to 80- 100 Kg/mm<SP>2</SP> and with several transits to more than 100 Kg/mm<SP>2</SP>. The invention may be employed on square, hexagonal or other polygonal rods.
Patent GB-508528-A (GB)
Title: Improvements in and relating to the discharge of various materials from hoppers and like storage receptacles
IPC: B65G65/44
Filed: 1938-08-09
Abstract: 508,528. Delivering material from hoppers. DAMOND, E. Aug. 9, 1938, No. 23453. Convention date, Aug. 9, 1937. [Class 78 (i)] The known process of removing material from hoppers by vibration is applied to hoppers constructed of material which cannot be vibrated, by .fitting them with an attached sub-hopper and applying the vibrations either to the wall of the sub-hopper, the final discharge pipe leading therefrom, or to the material itself inside the sub-hopper. In the illustrated form, the main hopper n of concrete is fitted with an annular spout o flanged to support an elastic ring p. The sub-hopper o<1> is supported from the ring and is fitted with a discharge pipe q through which the material flows when the vibrator d is working. The Specification as open to inspection under Sect. 91 comprises-also vibrating means applied to hoppers which are made of material that can be vibrated. In one construction a vibrator was applied to a grating covering the exit from the hopper. In another construction a vibrator was applied to a hopper wall to cause delivery to a receptacle suspended on a scale-pan. At a given weight the scale-pan descended and closed a switch to cut-off current from the vibrator. In a third construction a vibrated member was inserted into the material in the hopper. This subject-matter does not appear in the Specification as accepted.
Patent GB-1350341-A (GB)
Title: Apparatus for supporting the body of a converter
IPC: C21C5/46
Filed: 1972-05-19
Abstract: 1350341 Supporting converter bodies NIPPON STEEL CORP 19 May 1972 [19 May 1971] 23690/72 Heading F4B A converter body 1 is supported in a trunnion ring 2 by upper supporting devices comprising part spherical bearing members mounted on bases sliding in a radial direction on the trunnion ring, and received in cups mounted on brackets 4 secured to the converter and lower supporting devices comprising semicylindrical bearing members 32 mounted on brackets 6 secured to the converter and received in troughs 33 mounted on the trunnion ring 2. The upper bearing members 22, Fig. 3 are mounted on plates 21 sliding radially between stops 13, 14 on the trunnion ring. Radial thermal expansion is taken up by the plates 21 sliding outwardly, and in the lower devices by relative movement between the members 32, arranged with their axes directed radially of the converter, and the troughs 33 sliding over them. Because of the curved bearing surfaces, the bearing point of the converter's weight moves progressively as the converter is tilted, expansion or wear produces play between the parts of the supports. The cups of the upper securing devices may be slidably mounted of the trunnion ring, and the bearing members secured to the converter body, and hemispherical bearing members and cups may be used for the lower supporting devices.
Patent GB-707474-A (GB)
Title: Heat exchanger
IPC: F28D7/10
Filed: 1951-10-11
Abstract: 707,474. Tube joints. BROWN FINTUBE CO. Oct. 11, 1951 [April 27, 1951], No. 23706/51. Class 99 (1). [Also in Group XIII] The fluid tight joints at each end of a heat-exchanger of the type comprising an inner tube 11 for one fluid and an outer tube 10 forming with the inner tube an annular space 14 for a second fluid entering at 15 and leaving at 16, are formed by rubber-ring packed bushings 31, 32 fast with the inner tube which slide within machined extensions 33, 34 at the ends of the outer tube. Further, the inner tube is connected to a fluidconnection pipe 28 at each end by slidable flanges 24, 25 bearing respectively against a removable split ring 22 on the inner tube and a collar 27 on pipe 28, the joint ring 29 being tightened by bolts 26. The arrangement permits of ready dismantling of the tubes by sliding the inner tube through the outer tube, this being facilitated by the removal of the split ring 23 and flange 24. The flares 43 on the outer pipe facilitate assembly. The fluid pressures on the bushings equalize the forces tending to move the inner pipe but bush 31 can be fixed by screw 45 to allow the other bush to slide under heat expansion. Trough-shaped fins 12, as described in U.S.A. Specification 2,261,137, may be provided on the inner pipe.
Patent GB-1184515-A (GB)
Title: Operating Device, Primarily for a Detonation Generator.
IPC: F41A19/61
Filed: 1968-05-17
Abstract: 1,184,515. Reciprocating generators. BÍLKOW G.m.b.H. 17 May, 1968 [20 May, 1967], No. 23718/68. Heading H2A. [Also in Divisions F2 and F3] A mechanism for detonating a guided missile consists of a lever-and-spring assembly operated by a push knob, which assembly simulates the action of the trigger of a manual fire arm, viz. (a) operation is prevented until a safety catch or the like is released and (b) in operation there is a first-and-second pressure action. The actuating knob 3 is normally inaccessibly placed under a cover 4 which can however be pivoted, together with a spindle 5, to make the knob accessible and at the same time both remove a stop 21 from the free end of a first lever 12 and also operate arming switches 7 which cause or permit a missile to be launched. When the knob is depressed it turns the first lever 12 about its pivot 14 and compresses a spring 15 which connects the lever 12 to a second lever 13 also pivoted at 14. However the second lever is opposed by an armature 18 which completes the magnetic circuit of a permanent magnet 19 and is surrounded by a coil 20. The armature is held by a force greater than that exerted by the spring 15 but when, as ultimately happens, an extension 16 from the first lever 12 engages the second lever 13, further movement of the knob turns the second lever. This partly breaks the magnetic circuit, thus weakening the magnetic holding force which becomes less than that exerted by the spring 15. As soon as this happens the spring 15 itself tends to deflect the second lever 13 further, thus causing a rapid complete break in the magnetic circuit. The associated current surge in the coil 20 provides an output signal which can be used to detonate the missile.
Patent GB-255270-A (GB)
Title: Improvements in apparatus for dyeing raw stock
IPC: D06B5/00
Filed: 1925-09-23
Abstract: 255,270. Johnson, G. W., (Hussong Dyeing Machine Co.). Sept. 23, 1925. Circulating fluids through materials. - Relates to a drying-machine of the kind described in Specification 237,428, in which the stock to be dyed is contained in a cage 2 that is placed in a vat 1 through which the dye liquor is circulated, the cage being detachably secured to a beam structure 5, adapted to rest on the vat, and being provided with a top 11 which is suspended from the beam structure independently of the cage, and consists in providing the cage with a perforated bottom 7 capable of being opened and closed for discharging purposes. The cage is attached to the beam structure by straps 3 which pass through holes in the beams and are secured by wedges 6. The top 11 is permanently secured to the beams by bolts surrounded by tubes 14. The bottom 7 is composed of hinged sections 8 braced to support the load. A hinged sample door 17 is provided in the top of the cage.
Patent GB-654000-A (GB)
Title: Improvements in methods of, and systems for, stabilizing microwave oscillations
IPC: H03L7/26
Filed: 1948-09-09
Abstract: 654,000. Valve generator circuits. RADIO CORPORATION OF AMERICA. Sept. 9, 1948, No. 23749. Convention date, Jan. 31. [Class 40 (vi)] A microwave generator with a feedback loop is stabilized by placing in this loop a device resonant at the desired frequency and with a Q substantially greater than that of any other electrode or resonator in the system. This device may be a cavity resonator and may be filled with a gasexhibiting molecular resonance at the desired frequency. In one construction a klystron is provided with a feed-back loop, between the buncher and catcher resonators 16 and 17, which includes a resonant gas chamber 18. In a beam deflection valve a gas chamber 18 is included in the feed back from the output to the deflector electrodes 16D. Reference has been directed by the Comptroller to Specification 663,065.
Patent GB-784807-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q1/36
Filed: 1955-08-18
Abstract: 784,807. Aerials; radio receiving sets. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 18, 1955 [Aug. 21, 1954], No. 23836/55. Classes 40 (5) and 40 (7). A aerial suitable for incorporation into the cabinet of a radio receiver comprises a conductor of a length approximately equal to half the operating wavelength wound into a continuous open-ended helix. The feeder for the aerial is connected to two tapping points positioned symmetrically on either side of the centre of the winding and spaced suitably to match the aerial and feeder. The total length of the helix may be between #/10 and #/20 and the diameter between #/100 and #/200. It is possible to damp the aerial by connecting a suitable resistance across the helix. Further helical conductors may be arranged parallel to the aerial helix to form a director and reflector. In an embodiment mounted inside a radio cabinet a non-metallic bracket 13 is secured on top of a rotatable shaft 8. This carries a rod 14 of ferromagnetic material on which are wound coils 15 and 16 for medium and long waveband reception. It also carries a ceramic rod 17 to which are glued the turns of an aerial 1 constructed according to the invention. The feeder 2 is connected symmetrically as shown. The shaft 8 carries a pulley 18 driven by rope 19 and shaft 20 which projects through the front of the cabinet so that the aerial directivity can be adjusted thereby.
Patent GB-1436998-A (GB)
Title: Vehicle lighting systems
IPC: B60Q1/26
Filed: 1972-05-20
Abstract: 1436998 Road vehicle luminous signals LUCAS ELECTRICAL Ltd 4 May 1973 [20 May 1972] 23838/72 Heading G4Q In a vehicle lighting system including stop lamps 19, 21, a dimming resistor 18, a stop lamp switch 17 and a lighting switch 12, switching means is operable when both switches 17, 12 are closed for connecting the dimming resistor in series with the stop lamps and delay means associated with the switching means short circuits the dimming resistor for an interval sufficient to allow illumination of the stop lamps. Thus the danger of time lag, due to the dimming resistor, in high speeds at night is obivated. The switching means may also control dimming resistors 28, 29 in series with rear indicator lamps 25, 27 (22 is a flasher unit and 23 the direction indicator switch). The dimming resistors are bridged by normally closed contacts 34, 35, 36 of a relay 41 and are shown in the positions when relay 41 is energized. The above interval is produced by charging of capacitor 45 via diode 49 and, when charged transistor 42 is turned on to energize relay 41. Similar operation effects the direction indicator lamps. The frequency of flashing of the direction indicator lamps is rendered constant by including a resistor 37. The circuit may include a switch to connect an additional flasher unit to all indicator lamps simultaneously.
Patent GB-753230-A (GB)
Title: Improvements in and relating to electric indicator lamps
IPC: H01J5/08
Filed: 1953-08-28
Abstract: 753,230. Discharge lamps. KING, C. A. J. Aug. 17, 1954 [Aug. 28, 1953], No. 23882/53. Class 39 (1). [Also in Groups V, XI and XVIII] Electric incandescent lamps and discharge lamps are adapted for indicating, signalling, decorative and other purposes by the provision of a sheath of translucent or transparent organic thermoplastic which is injection moulded around, and permanently encloses, the bulb or envelope and part of the cap. The thermoplastic which may be of any colour, may be moulded into the shape of a bird or animal, or into cylindrical or other form with either a flat or domed upper end. Fig. 3 shows an indicator lamp which may be used as a push button in an intercommunication system and has a character impressed in its upper end during moulding. Characters or other matkings may be embedded so that they are visible only when the lamp is illuminated. A collar-like flange or ring may be formed integrally with the moulded sheath or, as shown in Fig. 5, a bevelled ring 12 of chromium-plated metal may be embedded in the sheath during moulding and form an abutment for the lamp when mounted on a panel. The materials used for the moulded sheath may comprise a glass-like acrylic ester or vinyl or styrol plastic; alternatively a cellulosic plastic may be used. A number of lamps may be provided simultaneously with moulded sheaths by mounting them upon temporary holders within the lower half of a two-part mould (see Group V). Lettering &c. may be provided on the surface of the holders and reproduced on the base of the moulded sheath.
Patent GB-190209-A (GB)
Title: Improvements in electrical transmission systems
IPC: H01B7/26
Filed: 1921-09-07
Abstract: 190,209. Taylor, A. M. Sept. 7, 1921. Protective arrangements.-The lead sheathings of single or multiple conductor high tension cables are divided into sections which are connected through sources of counter-electromotiveforce such as the secondary of a transformer with the object of maintaining the mid-points of the successive sections of the sheathing at zero potential. Means are also provided to close an indicator circuit at the central station upon a disturbance of the potential of the mid-points of the sections due to a leakage or a short-circuit between the ends of adjacent lead sheathings. Successive lengths A, A<1>, A<11>; B, B<1>, B<11>; C, C<1>, C<11>, Fig. 1, each of about 100 yards are connected by a transformer F enclosed in a junction box D divided into two parts separated by a thin insulating partition. The parts of the box D are connected electrically to the lead sheathing. The mid-points of the transformer winding a, b, c, Fig. 2, are joined and the junction is connected to earth through a lead d containing a choking coil or transformer primary winding H. The junction of the transformer windings a<4>, b<4>, c<4> seventeen sections along is also connected. The mid-points of the transformer windings a', b<1>, c<1>; a<2>, b<2>, c<2> are normally at zero potential and are connected by leads g, f, e; o, n, m to a testing box L. Upon a break-down of the insulation between the parts of the box D a current flows in the lead d and a relay K is operated to close the circuit k of an indicator at the central station.
Patent GB-1236226-A (GB)
Title: Cyclopentyl-alkanoic acids and process for their manufacture
IPC: C07F7/18
Filed: 1968-05-20
Abstract: 1,236,226. Prostaglandin type cyclopentylalkanoic acids and intermediates. CIBAGEIGY A.G. 20 May, 1968 [22 May, 1967; 12 Feb., 1968], No. 23896/68. Heading C2C. Compounds of general Formula (I) or an ester or salt thereof, the racemic forms of which are novel, are prepared by cleaving the corresponding novel oximes of Formula (Ia) or an ester or salt of such oxime in which R 1  is H or an aliphatic or araliphatic radical and, if desired, converting a resulting compound into its salts or esters or converting a resulting salt or ester into the free acid. Novel oximes of Formula (Ia) above wherein R 1  is H, (C 1-7 )-alkyl, (C 2-7 )-alkenyl, (C 3-6 )- cycloalkyl, (C 3-6 ) - cycloalkyl - (C 1-4 ) - alkyl, or R-(C 1-7 )-alkyl where R is halogen, phenyl, (C 1-7  alkyl) - phenyl, (C 1-7  alkoxy) - phenyl, (C 1-7  alkylenedioxy) - phenyl, halogenophenyl, trifluoromethyl, phenyl, nitrophenyl or di- (C 1-7  alkyl)-aminophenyl; or an ester salt or an ether of such oximes, are prepared by reduction of the corresponding novel ketone of Formula (IIb) or an ester, salt or ether thereof which are prepared by reaction of the phosphorane of formula with a tetrahydropyranyl ether of an ester of the aldehyde of Formula (IIc) wherein R<SP>2</SP> is -CHO, optionally followed by hydrolysis, then etherification and/or esterification. Novel aldehydes of Formula (IIc) above where R 2  is -CHO, and salts, esters and ethers thereof, are prepared from the corresponding novel alcohols of Formula (IIc), wherein R 2  is -CH 2 OH, and salts, esters and ethers thereof, which are prepared by reduction of a compound of formula wherein R is C 1-7  alkyl or in the group RON=, R may be as R 1  above, the preparation of which is as described in divisional Specification 1,236,227.
Patent GB-296434-A (GB)
Title: Improvements relating to chalk-holding devices for billiards
IPC: A63D15/16
Filed: 1928-08-20
Abstract: 296,434. Potje, F. Sept. 2, 1927, [Convention date]. Billiards, chalk-holders for. -A chalk-holding device is divided by an horizontal partition into an upper and a lower part, the lower part having resilient holding lugs for a block of chalk and the upper part being constructed as a receptacle for French chalk and being provided with a perforated cover. A plate g divides the device into a lower portion with chalkretaining fingers c<6>, and into an upper portion forming a receptacle c<4> for French chalk e. The receptacle is closed by a perforated cover f forming a sprinkling sieve, and the sieve is closed by a second cover b<2> with a hollow roughening surface b<1>. The surface b<1> is used to roughen the cue tip before chalking, and the sprinkler is used to deposit the French chalk upon the index finger and thumb of the player's hand where the cue slides.