US2643419A - Elimination of faller bar creep in pin drafters - Google Patents

Elimination of faller bar creep in pin drafters Download PDF

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Publication number
US2643419A
US2643419A US41646A US4164648A US2643419A US 2643419 A US2643419 A US 2643419A US 41646 A US41646 A US 41646A US 4164648 A US4164648 A US 4164648A US 2643419 A US2643419 A US 2643419A
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US
United States
Prior art keywords
bars
saddle
screws
bar
faller
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
Application number
US41646A
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English (en)
Inventor
James R Longstreet
Jacques Raynaldo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Warner and Swasey Co
Original Assignee
Warner and Swasey Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Warner and Swasey Co filed Critical Warner and Swasey Co
Priority to US41646A priority Critical patent/US2643419A/en
Priority to GB19091/49A priority patent/GB685453A/en
Priority to FR991314D priority patent/FR991314A/fr
Application granted granted Critical
Publication of US2643419A publication Critical patent/US2643419A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02—Gill boxes or other drafting machines employing fallers or like pinned bars
    • D01H5/04—Gill boxes or other drafting machines employing fallers or like pinned bars with pinned bars actuated by screw members
    • D01H5/06—Intersecting gill boxes

Definitions

  • Figs. 4 and 5 are ⁇ fragmentary sectionsthrough one of the guiding members.
  • Figs. 6 and '7 are views of oneofthe faller bars.
  • Each bar member ⁇ B includesthe usual' pins 2
  • the ends of the bars' are formed with screw followers as' at 23 to ride in the screws, the followers 23 preferably being I arrangedk so thatl the bars are vertical when the followers are disposed in the lead screw that advances them fordrafting.
  • Opposite ends of the bars are notched as at 24 to assistV in guiding them during transfer from one screw to the other as will beexplained in detail presently.
  • the fingers are pvotally mounted on the frameL of the apparatus as at 3
  • a stop 35 may be provided to limit the action of the spring on the finger.
  • the conductor or finger 26 has a straight guiding face 39 and a curved face 4U merging therewith.
  • the outer end of the lower saddle I'I is formed with three surfaces each having a function.
  • a tapered surface 36 extending from the supporting surface of the saddle at an angle such that the faller bar, as it is urged along surface 3S by the S-cam, continues to advance with the sliver at the speed imparted to it by the lead screw I2.
  • Another surface 31 is formed on the end of the saddle, this surface being generally perpendicular to the lead screw axis.
  • the lower tapered guiding surface 38 is also provided to facilitate entry of the faller bars in the return screw.
  • a terminal faller bar B reaches the end of its travel along the upper surface of saddle II, it reaches a point seen in Fig. 3 where it is about to leave the upper surface.
  • the lead screw l2 carries the terminal bar past the edge formed by the intersection of surfaceV 36 and the upper surface of the saddle I'I, the S-carn on the forward end of lead screw I2 begins to lower the faller bar.
  • the faller bar remains engaged in lead screw I2, but as the bar slides along saddle surface 36 a point is reached wherein the bar is no longer driven by a screw but is propelled forwardly by the inclination of surface 36 and the downward action of the S-cam.
  • the rear of the saddle includes a tapered face 33a, a vertical face 31a, and a sloping face 38a corresponding generally to the faces just described.
  • an S-cam mounted on the return screw starts to lift the bar and tends to tilt it out to the vertical position.
  • cam surface 36a on the saddle continues the advance of the bar under action of the Scam until it is gripped between the straight face 39a of the conductor 2l and the vertical face 31a of the saddle.
  • the S-cam does not completely lift the bar entirely into drafting position. Rather, the lower corner thereof rides on sloping survof the saddles.
  • the lower saddle Il and the support I8 for the upper set of bars converge somewhat toward the drafting rolls.
  • the edges of the bars do not initially compress the sliver but are gradually brought against the sliver to compress it somewhat as the bars are advanced along the saddles. This also facilitates entryr of the pins into the sliver as well as improves smoothness and effectiveness of the apparatus.
  • the sliver is drafted from the terminal pins by the usual drafting rolls and known to those skilled in the art.
  • the construction and operation of the corresponding saddles and conductors for the upper set of faller bars is like that just described in connection with the lower bars 26 so that the description will not be repeated.
  • the two rearward conductors or fingers 2l and 29 are shaped differently from the forward ones, namely the curved faces found on the forward fingers need not be present. This is because, as the bars leave the return screws they are flung against the fingers and tend to straighten up against the faces of the fingers. As the bars are lifted by the S-cam they are guided so as to be gripped between the straight portions of the fingers and the vertical faces 37a of the saddles before they enter into engagement with the lead screws.
  • a lower series of faller bars lead screws of one pitch for advancing the bars with a moving sliver, return screws of a greater pitch for returning said bars in a direction opposite to the direction of sliver motion, said screws being geared together, cams turning with said screws for shifting the bars from the lead screws to the return screw at the exit end of said gill box, and cams turning with said screws for shifting the bars of each series from the return screws to the lead screws at the entrance end of said gill box, guide saddles for said bars disposed between associated lead and return screws, each saddle having a longitudinal surface for guiding said bars during advance thereof with a sliver, and spring pressed arms urged toward the ends of each saddle, the exit end of each saddle having a planar vertical surface, said arms having straight ends for holding bars against said vertical saddle surfaces, said arms having curved base portions overlying a substantial portion of said return screws, said curved vbase portions, saddle ends and return screws being relatively disposed so that a faller bar
  • a lower series of faller bars each bar comprising an elongated Vmember having longitudinally extending corners, lead screws of one pitch for advancing the bars with a moving sliver, return screws of a greater pitch for returning said bars in a direction opposite to the direction of sliver motion, said screws being geared together, cams turning with said screws for shifting the bars from the lead screws to the return screw at the exit end of said gill box, and cams turning with said screws for shifting the bars of each series from the return screws to the lead screws at the entrance end of said gill box, guide saddles for said bars disposed between associated lead and return screws, each saddle having a longitudinal surface for guiding said bars during advance thereof with a sliver,
  • each saddle having a beveled planar surface extending from said longitudinal saddle surface at such an angle that a bar corner held against said first beveled surface by the associated arm moves in a direction that is the resultant of the horizontal motion im parted to the bar by the lead screw and the Vertical motion imparted thereto by the associated cam whereby said bars may be held and guided in their vertical positions without interference during initial withdrawal from a sliver, the exit end of each saddle having a planar vertical surface, said arms having straight ends for holding bars against said vertical saddle surfaces, said arms having curved base portions overlying a substantial portion of said return screws, said curved base portions, saddle ends and return screws being relatively disposed so that a faller bar passing into said return screws has two spaced zones of engagement with each arm, and a single zone of engagement with each saddle end, whereby said faller bars are steadied by three point engagement while being canted for easy entry into said return screws.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
US41646A 1948-07-30 1948-07-30 Elimination of faller bar creep in pin drafters Expired - Lifetime US2643419A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US41646A US2643419A (en) 1948-07-30 1948-07-30 Elimination of faller bar creep in pin drafters
GB19091/49A GB685453A (en) 1948-07-30 1949-07-20 Improvements in or relating to gill boxes
FR991314D FR991314A (fr) 1948-07-30 1949-07-22 Perfectionnements aux boîtes de peignage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41646A US2643419A (en) 1948-07-30 1948-07-30 Elimination of faller bar creep in pin drafters

Publications (1)

Publication Number Publication Date
US2643419A true US2643419A (en) 1953-06-30

Family

ID=21917602

Family Applications (1)

Application Number Title Priority Date Filing Date
US41646A Expired - Lifetime US2643419A (en) 1948-07-30 1948-07-30 Elimination of faller bar creep in pin drafters

Country Status (3)

Country Link
US (1) US2643419A (fr)
FR (1) FR991314A (fr)
GB (1) GB685453A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938240A (en) * 1956-05-17 1960-05-31 Mackie & Sons Ltd J Gill boxes
US3395022A (en) * 1963-11-12 1968-07-30 Gen Foods Corp Method of freeze drying fruit and combinating it with dry cereal

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US388739A (en) * 1888-08-28 Job stake
US610774A (en) * 1898-09-13 smith
FR323735A (fr) * 1902-07-26 1903-03-13 N (F. J.) Perfectionnement apporté aux machines d'étirage avec peignes à barrettes dites gill box intersecting simple ou double; à simple, double ou triple filets
US722984A (en) * 1901-06-12 1903-03-17 William Holdsworth Gill-drawing frame.
US1497306A (en) * 1917-05-25 1924-06-10 Schlumberger Nicolas Gill box having crossed fallers
US1565008A (en) * 1919-08-23 1925-12-08 Paper Products Machine Company Machine for applying reenforcing filaments to fabrics
US1598460A (en) * 1925-02-12 1926-08-31 John Crossley & Sons Ltd Yarn-drawing apparatus
US1763926A (en) * 1927-10-01 1930-06-17 Gegauff Charles Cushioning means for the fallers of gill boxes and intersecting frames
GB413618A (en) * 1931-10-19 1934-07-19 Charles Gegauff Improvements in and connected with gill boxes or intersectings
US2098781A (en) * 1936-04-27 1937-11-09 Holdsworth Willie Gill-drawing frame

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US388739A (en) * 1888-08-28 Job stake
US610774A (en) * 1898-09-13 smith
US722984A (en) * 1901-06-12 1903-03-17 William Holdsworth Gill-drawing frame.
FR323735A (fr) * 1902-07-26 1903-03-13 N (F. J.) Perfectionnement apporté aux machines d'étirage avec peignes à barrettes dites gill box intersecting simple ou double; à simple, double ou triple filets
US1497306A (en) * 1917-05-25 1924-06-10 Schlumberger Nicolas Gill box having crossed fallers
US1565008A (en) * 1919-08-23 1925-12-08 Paper Products Machine Company Machine for applying reenforcing filaments to fabrics
US1598460A (en) * 1925-02-12 1926-08-31 John Crossley & Sons Ltd Yarn-drawing apparatus
US1763926A (en) * 1927-10-01 1930-06-17 Gegauff Charles Cushioning means for the fallers of gill boxes and intersecting frames
DE501433C (de) * 1927-10-01 1930-07-02 Karl Gegauff Dr Stossdaempfereinrichtung fuer die Nadelstaebe von Nadelstabstrecken
GB413618A (en) * 1931-10-19 1934-07-19 Charles Gegauff Improvements in and connected with gill boxes or intersectings
US2098781A (en) * 1936-04-27 1937-11-09 Holdsworth Willie Gill-drawing frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938240A (en) * 1956-05-17 1960-05-31 Mackie & Sons Ltd J Gill boxes
US3395022A (en) * 1963-11-12 1968-07-30 Gen Foods Corp Method of freeze drying fruit and combinating it with dry cereal

Also Published As

Publication number Publication date
GB685453A (en) 1953-01-07
FR991314A (fr) 1951-10-04

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