US2519966A - Fountain pen - Google Patents
Fountain pen Download PDFInfo
- Publication number
- US2519966A US2519966A US752039A US75203947A US2519966A US 2519966 A US2519966 A US 2519966A US 752039 A US752039 A US 752039A US 75203947 A US75203947 A US 75203947A US 2519966 A US2519966 A US 2519966A
- Authority
- US
- United States
- Prior art keywords
- slot
- nib
- feed bar
- ink
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
- G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
- B43K5/18—Arrangements for feeding the ink to the nibs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
- G01N27/025—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil a current being generated within the material by induction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
- G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
Definitions
- This invention relates to fountain or reservoir pens and particularly to the ink feeding arrangements for such pens.
- the feed means for the ink to the pen nib comprises a feed bar consisting of a rod-like member which at its rear end is of circular section and which is frictionally held in a circular. longitudi nal hole in the nib section of the pen. This. hole at. its forward end is of slightl larger diameter than at the rear end so as to accommodate the pen nib between its inner face and the upper face of the feed bar.
- The'feed bar has a main slot extending from its rear end to a point close to its front end and in the base of this slot there are formed twoor three narrow capillary grooves, two of which are cut on either side of the base, which also extend for the same distance as the main slot.
- the capillary 3 grooves first fill with ink and then the main slot is filled.
- the ink is thus delivered to the underside of the pen nib and as it flows from the nib more ink passes down the grooves and slot.
- bubbles of air enter'the main slot through the hole in the pen nib and travel to the reservoir.
- the i k held in the grooves and slot in the feed bar is greatly in excess of what is required for writing with the result that a heavy flow takes place and blobs of ink may drop from the pen nib. Still further, leaky conditions are produced in the pen.
- a feed bar for a fountain pen has a, main longitudinal slot extending from the rear end thereof to a point just short of the front end thereof, at least two narrow capillary grooves at the bottom of said slot, of which two are positioned, one on each side of the slot, and a bridge extending transversely of the slot, dividing said slot into two parts, but spaced from the sides of the slot so as to form narrow ink passages betweenit and the walls of the slot.
- the bridge is constituted by a pin fixed in the longitudinal slot in the feed bar.
- thebrid'ge may be formed by cutting themain-slot in two aligned parts, separated by the bridge, and wherein the capillary grooves are formed past the sides-of the bridge.
- a pluralit of bridges- may be provided:
- the invention further envisages the combination with a feed bar having a longitudinal main slot extending from the rear end thereofitoa point just short of the front end thereof, and at least two narrow capillary grooves-at the bottom of said slot, of which two are positioned, one-on each side of the slot, of a nib section having a projection from the inner face thereof extending into the main slot to constitute a bridge-with narrow ink passages between said bridge and the walls of the main slot.
- The-projection in th-e'ni-b section may be a pin fixed in a hole in said nib section.
- Figure 1 is a perspective view, partly sectioned of a feed bar having a pin bridge.
- Figure 2 is a planview of the feed bar shown in Figure 1.
- Figure 3 is an enlarged cross section onthe line 3-3 of Figure2.
- Figure 4 is a longitudinal section alonga: line similar to line IVIV of Fig; 3 but'ofa feed bar having the main slot milled in two' parts;
- Figure 5 is a longitudinal section similar to Figure 4 but having two bridges formed by milling the main slot in three parts.
- Figure 6 is a section of a nib section with projecting pin assembled with a feed bar and nib.
- Figure '7 is a section of a fountain pen with a feed bar as shown in Figure 1.
- the feed bar I is formed in the usual way from a length of circular rod of ebonite. It is tapered at the front end 2 in the usual Way and a main slot 3 approximately 0.06 inch wide and 0.03 inch deep is milled from the rear end 4 where the feed bar I will enter the ink reservoir 5, see Figure 7, to a point 21 just short of the front end 2.
- Three narrow capillary grooves 6 are milled further into the bar I at the bottom of the main slot 3. About half way along the length of the feed bar, a, hole is drilled therethrough at the centre of the main slot. Into this is inserted a pin 1 of ebonite which is of such a size that its periphery is spaced from the walls 8 of the main slot 3 by 3 distance about equal to the width of the capillary rooves 6.
- the capillary grooves 6 first fill with ink from one end to the other of the feed bar.
- the main slot then fills behind the bridge 7, the portion of the slot in front of the bridge remaining empty.
- Ink is fed to the nib 9 and as it passes away, the supply is maintained through the capillary grooves. Air passes backwards from the nib along the front part of the main slot, past the sides of the bridge and thence along the rear part of the main slot to the reservoir 3. The flow of ink is satisfactorily controlled and flooding and leaking is prevented.
- the main slot is milled in two parts 3a, 3b leaving a bridge l2 extending between them.
- Capillary grooves 13 are milled in the bottom of the two part main slot and also through the bridge l2.
- the main slot is milled in thre parts leaving two bridges [2a and l2b.
- Capillary grooves are milled in the bottom of the three part main slot and also through the bridges.
- Figure 6 shows an alternative arrangement in which a feed bar of usual form, having a main slot l4, and capillary grooves I5 is assembled with a nib IS in a nib section II.
- Th nib section has a radial hole formed in it, and in this hole is inserted a pin 18 of ebonite which projects into the main slot H, to contact the bottom thereof and which is of such size that it i spaced from the walls of the main slot by an amount about equal to the width of the capillary grooves.
- Transverse slots 19 may sometimes be provided in the front end of the feed bar, though usually they may be omitted.
- the bridge extends fully between the base of the main slot of the feed bar and the inner surface of the nib section.
- a fountain pen an ink reservoir, a nib section at the open end of the ink reservoir, 9. feed bar and pen nib in the nib section, the feed bar having a main longitudinal slot extending from the rear end thereof to a point which is short of the front end thereof at least two narrow capillary grooves formed in the bottom of said slot of which two are positioned, one on each side of the slot and a fixed bridge extending transversely of the main longitudinal slot for the full depth thereof dividing said slot into two parts but spaced from the sides of the slot so as to form HaEI'OW passages between it and the sides of the slo 2.
- a nib section having an axial opening therein and adapted to be fastened in the end of a fountain pen barrel, and a feed bar positioned within the axial opening within the nib section, said feed bar having a main longitudinal slot extending from the rear end thereof to a point just short of the front end thereof, at least two narrow capillary grooves formed in the bottom of said slot, of which two are positioned, one on each side of the slot, and a fixed bridge extending transversely of the slot dividing the slot into two parts, the bridge spaced from the sides of the slot so as to form narrow passages between it and the sides of the slot, and a nib disposed within the axial opening in the nib section spaced forwardly relativ to said bridge.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Biochemistry (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Pens And Brushes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2519966X | 1946-06-11 | ||
FR903329A FR1335569A (fr) | 1962-07-07 | 1962-07-07 | Perfectionnements aux appareils de mesure de conductivité par induction |
Publications (1)
Publication Number | Publication Date |
---|---|
US2519966A true US2519966A (en) | 1950-08-22 |
Family
ID=32232261
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US752039A Expired - Lifetime US2519966A (en) | 1946-06-11 | 1947-06-03 | Fountain pen |
US292639A Expired - Lifetime US3340464A (en) | 1946-06-11 | 1963-07-03 | Induction investigation apparatus having time shared operations including phase calibration |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US292639A Expired - Lifetime US3340464A (en) | 1946-06-11 | 1963-07-03 | Induction investigation apparatus having time shared operations including phase calibration |
Country Status (5)
Country | Link |
---|---|
US (2) | US2519966A (da) |
BE (1) | BE633100A (da) |
DE (1) | DE1616646B1 (da) |
GB (1) | GB1001379A (da) |
NL (2) | NL132706C (da) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH568569A5 (da) * | 1974-02-06 | 1975-10-31 | Bbc Brown Boveri & Cie | |
US4334192A (en) * | 1979-01-29 | 1982-06-08 | Garrett Electronics | Metal detector circuit having automatic tuning with multiple rates |
US4303879A (en) * | 1979-01-29 | 1981-12-01 | Garrett Electronics | Metal detector circuit with mode selection and automatic tuning |
US4455529A (en) * | 1981-06-08 | 1984-06-19 | Schlumberger Technology Corporation | Digital induction logging tool including means for measuring phase quadrature components in a phase sensitive detector |
US4412207A (en) * | 1981-06-08 | 1983-10-25 | Schlumberger Technical Corporation | Digital induction logging tool including a floating point A/D |
US4499421A (en) * | 1981-06-08 | 1985-02-12 | Schlumberger Technology Corporation | Digital induction logging system including means for generating a plurality of transmitter frequencies |
GR75678B (da) * | 1981-06-08 | 1984-08-02 | Schlumberger Ltd | |
US4439831A (en) * | 1981-06-08 | 1984-03-27 | Schlumberger Technical Corporation | Digital induction logging system including autocalibration |
US4499422A (en) * | 1981-06-08 | 1985-02-12 | Schlumberger Technology Corporation | Digital induction logging tool including means for compensating for phase shift errors |
US4720681A (en) * | 1981-06-08 | 1988-01-19 | Schlumberger Technology Corporation | Digital induction logging tool |
US4491798A (en) * | 1981-12-21 | 1985-01-01 | Palmer James K | System for measuring conductivity of a liquid |
US4467425A (en) * | 1982-01-12 | 1984-08-21 | Schlumberger Technology Corporation | Deconvolution filter for induction log processing |
US4513376A (en) * | 1982-01-12 | 1985-04-23 | Schlumberger Technology Corporation | Phasor processing of induction logs including skin effect correction |
US4471436A (en) * | 1982-01-12 | 1984-09-11 | Schlumberger Technology Corporation | Phasor processing of induction logs including shoulder and skin effect correction |
US4604581A (en) * | 1983-01-11 | 1986-08-05 | Halliburton Company | Method and apparatus for deconvolving apparent conductivity measurements in induction well logging |
US4825168A (en) * | 1986-05-30 | 1989-04-25 | Cobe Laboratories, Inc. | Remote conductivity sensor using square wave excitation |
GB2191293B (en) * | 1986-05-30 | 1990-10-17 | Cobe Lab | Remote conductivity sensor |
DE3705308A1 (de) * | 1987-02-19 | 1988-09-01 | Foerster Inst Dr Friedrich | Induktives suchgeraet |
DE3707210A1 (de) * | 1987-03-06 | 1988-09-15 | Foerster Inst Dr Friedrich | Induktives metallsuchgeraet |
US4837517A (en) * | 1987-07-16 | 1989-06-06 | Schlumberger Technology Corporation | Spatial frequency method and apparatus for investigating earth conductivity with high vertical resolution by induction techniques |
US5184079A (en) * | 1990-11-13 | 1993-02-02 | Schlumberger Technology Corporation | Method and apparatus for correcting data developed from a well tool disposed at a dip angle in a wellbore to eliminate the effects of the dip angle on the data |
US6216089B1 (en) | 1999-09-07 | 2001-04-10 | Schlumberger Technology Corporation | Method and apparatus for producing a conductivity log unaffected by shoulder effect and dip from data developed by a well tool |
US6586939B1 (en) * | 1999-12-24 | 2003-07-01 | Baker Hughes Incorporated | Method and apparatus for reducing the effects of parasitic and galvanic currents in a resistivity measuring tool |
US7027922B2 (en) * | 2003-08-25 | 2006-04-11 | Baker Hughes Incorporated | Deep resistivity transient method for MWD applications using asymptotic filtering |
US7408355B1 (en) * | 2004-05-07 | 2008-08-05 | Baker Hughes Incorporated | Borehole conductivity simulator verification and transverse coil balancing |
US7652478B2 (en) * | 2004-05-07 | 2010-01-26 | Baker Hughes Incorporated | Cross-component alignment measurement and calibration |
US7969153B2 (en) * | 2004-05-07 | 2011-06-28 | Baker Hughes Incorporated | Borehole conductivity simulator verification and transverse antenna balancing |
US7205770B2 (en) * | 2004-05-07 | 2007-04-17 | Baker Hughes Incorporated | Borehole conductivity simulator verification and transverse coil balancing |
US7319331B2 (en) * | 2004-05-07 | 2008-01-15 | Baker Hughes Incorporated | Two loop calibrator |
US7932723B2 (en) * | 2004-05-07 | 2011-04-26 | Baker Hughes Incorporated | Borehole conductivity simulator verification and transverse coil balancing |
US7567869B2 (en) * | 2007-04-27 | 2009-07-28 | Baker Hughes Incorporated | Induction tool for detail evaluation of near borehole zone |
US7915895B2 (en) * | 2007-06-22 | 2011-03-29 | Baker Hughes Incorporated | Method of calibrating an azimuthal inductive cross-coil or tilted coil instrument |
DE102008020647A1 (de) * | 2008-04-24 | 2009-11-12 | Continental Automotive Gmbh | Vorrichtung zum Messen einer Sondenimpedanz |
US8718942B2 (en) * | 2011-05-06 | 2014-05-06 | Schlumberger Technology Corporation | Systems and methods for investigating a formation surrounding a borehole |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US668760A (en) * | 1900-07-14 | 1901-02-26 | William W Stewart | Fountain-pen. |
US739720A (en) * | 1901-06-22 | 1903-09-22 | Jay G Rider | Fountain-pen. |
US776428A (en) * | 1904-01-29 | 1904-11-29 | Julius L Schnell | Feeder-bar for fountain-pens. |
US834541A (en) * | 1906-01-18 | 1906-10-30 | William A Welty | Fountain-pen. |
GB104980A (en) * | 1916-06-09 | 1917-03-29 | William Irving Ferris | Improvements in Fountain Pens. |
US1365191A (en) * | 1920-01-19 | 1921-01-11 | Richard E Perkins | Fountain-pen |
DE457043C (de) * | 1926-10-21 | 1928-03-08 | Heinrich Koehler | Auswechselbarer Tintenleiter fuer Fuellfederhalter |
US1818743A (en) * | 1929-09-26 | 1931-08-11 | Parker Pen Co | Adjustable feed for fountain pens |
US2338947A (en) * | 1939-05-11 | 1944-01-11 | Kovacs Theodor | Fountain pen |
US2413904A (en) * | 1943-04-17 | 1947-01-07 | Eterpen Sa Financiera | Writing instrument |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123766A (en) * | 1964-03-03 | Airborne electromagnetic prospecting apparatus having | ||
US2582314A (en) * | 1949-06-15 | 1952-01-15 | Schlumberger Well Surv Corp | Electromagnetic well logging system |
US2582315A (en) * | 1949-09-03 | 1952-01-15 | Schlumberger Well Surv Corp | Differential coil system for induction logging |
US2887650A (en) * | 1955-05-04 | 1959-05-19 | Newmont Mining Corp | Method of and apparatus for geophysical exploration |
US2995699A (en) * | 1955-08-05 | 1961-08-08 | Mullard Radio Valve Co Ltd | Geophysical survey apparatus |
US2929984A (en) * | 1956-01-12 | 1960-03-22 | Canadian Airborne Geophysics L | Method and apparatus for qualitative electromagnetic surveying |
US2945176A (en) * | 1956-10-02 | 1960-07-12 | Emmett M Irwin | Induced flux method and apparatus for testing metals |
US2948846A (en) * | 1956-11-01 | 1960-08-09 | Schlumberger Well Surv Corp | Well logging systems |
US2948847A (en) * | 1957-05-03 | 1960-08-09 | Welex Inc | Electromagnetic conductivity detection |
US3105190A (en) * | 1959-11-30 | 1963-09-24 | Dresser Ind | Induction logging system utilizing surface reciprocal producing means |
US3214686A (en) * | 1960-09-06 | 1965-10-26 | Newmont Mining Corp | Drill hole electromagnetic method and apparatus for geophysical exploration utillizing in-phase and out-of-phase nulling voltages |
-
0
- NL NL294973D patent/NL294973A/xx unknown
- NL NL132706D patent/NL132706C/xx active
- BE BE633100D patent/BE633100A/xx unknown
-
1947
- 1947-06-03 US US752039A patent/US2519966A/en not_active Expired - Lifetime
-
1963
- 1963-06-06 GB GB22565/63A patent/GB1001379A/en not_active Expired
- 1963-06-21 DE DE1963S0085771 patent/DE1616646B1/de active Pending
- 1963-07-03 US US292639A patent/US3340464A/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US668760A (en) * | 1900-07-14 | 1901-02-26 | William W Stewart | Fountain-pen. |
US739720A (en) * | 1901-06-22 | 1903-09-22 | Jay G Rider | Fountain-pen. |
US776428A (en) * | 1904-01-29 | 1904-11-29 | Julius L Schnell | Feeder-bar for fountain-pens. |
US834541A (en) * | 1906-01-18 | 1906-10-30 | William A Welty | Fountain-pen. |
GB104980A (en) * | 1916-06-09 | 1917-03-29 | William Irving Ferris | Improvements in Fountain Pens. |
US1365191A (en) * | 1920-01-19 | 1921-01-11 | Richard E Perkins | Fountain-pen |
DE457043C (de) * | 1926-10-21 | 1928-03-08 | Heinrich Koehler | Auswechselbarer Tintenleiter fuer Fuellfederhalter |
US1818743A (en) * | 1929-09-26 | 1931-08-11 | Parker Pen Co | Adjustable feed for fountain pens |
US2338947A (en) * | 1939-05-11 | 1944-01-11 | Kovacs Theodor | Fountain pen |
US2413904A (en) * | 1943-04-17 | 1947-01-07 | Eterpen Sa Financiera | Writing instrument |
Also Published As
Publication number | Publication date |
---|---|
NL294973A (da) | |
NL132706C (da) | |
GB1001379A (en) | 1965-08-18 |
DE1616646B1 (de) | 1972-03-16 |
US3340464A (en) | 1967-09-05 |
BE633100A (da) |
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