US2728111A - Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine - Google Patents

Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine Download PDF

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Publication number
US2728111A
US2728111A US417268A US41726854A US2728111A US 2728111 A US2728111 A US 2728111A US 417268 A US417268 A US 417268A US 41726854 A US41726854 A US 41726854A US 2728111 A US2728111 A US 2728111A
Authority
US
United States
Prior art keywords
rack
drafting machine
back roll
bottom back
transverse adjustment
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
US417268A
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English (en)
Inventor
William W Werth
William E Mcfarland
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.)
Whitin Machine Works Inc
Original Assignee
Whitin Machine Works Inc
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
Priority to BE534595D priority Critical patent/BE534595A/xx
Application filed by Whitin Machine Works Inc filed Critical Whitin Machine Works Inc
Priority to US417268A priority patent/US2728111A/en
Priority to GB34226/54A priority patent/GB755403A/en
Priority to CH329009D priority patent/CH329009A/de
Priority to FR1116619D priority patent/FR1116619A/fr
Application granted granted Critical
Publication of US2728111A publication Critical patent/US2728111A/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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/44—Adjusting drafting elements, e.g. altering ratch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18992—Reciprocating to reciprocating

Definitions

  • the back bottom roll is also continuously rotated in a plurality of axially spaced bearing blocks but these blocks are so constructed that the transverse spacing between the back and front rolls may be increased or decreased as found desirable or necessary.
  • each back bearing block with a relatively short rack bar extending transversely of the back roll, and we provide a single longitudinally-movable operating rack bar coacting with all of these short transverse rack bars to move all of the back bearing blocks simultaneously in a selected direction and in equal amounts. Both sets of rack teeth are inclined to their paths of movement, and the angles are selected to give mechanical advantage to the single operating rack bar.
  • FIG. 1 is a perspective view showing our invention as applied to a single back bearing block
  • Fig. 2 is a partial side elevation of the parts shown in Fig. 1;
  • Fig. 3 is a detail sectional view, taken along the line 3-3 in Fig. 2;
  • Fig. 4 is a partial top view of the operating rack bar
  • Fig. 5 is a partial bottom view of one of the short transverse rack bars, looking in the direction of the arrow 5 in Fig. 2;
  • Fig. 6 is a front elevation of mechanism for moving the operating rack bar longitudinally
  • Fig. 7 is an end elevation, looking in the direction of the arrow 7 in Fig. 6;
  • Fig. 8 is a plan view showing mechanism for simultaneously adjusting a plurality of bearing blocks.
  • FIG. 8 A front bottom roll 12 is shown in Fig. 2, and the roll 12 is rotatably mounted in a plurality of fixed front bearing blocks 14.
  • the bottom back roll 20 is similarlymounte'd in a plurality of back bearing'blocks 21, each of which is slidably mountedon one of. the fixed brackets 10.
  • top member 22 of the slotted as shownf at 23 in Fig. 3, and the side walls of the slot 23 are recessed at24 to slidably support a short. transverse rack .bar 25.
  • Each rack bar 25 is clamped to its associated bearing block 21 by clamping bolts 27 which extend through spacing washers 28 andare received in slotted flanges 29 in the bearing blocks 21. Convenient longitudinal adjustment of each rack bar25 relativet'o its bearing block 21 is thus provided.
  • Each"brack et '10 is provided with a transverse slot or guideway 30 (Fig. 2) for an operating rack bar 31 (Fig. 8) which extends the length of the drawing frame and which coacts with all of the short transverse rack bars 25 in the brackets 10.
  • Rack teeth 32 (Fig. 4) on the upper edge of the operating bar 31 coact with rack teeth 33 (Fig. 5) on the lower surface of each short transverse rack bar 25. These rack teeth are relatively inclined, with the teeth 32 preferably at an angle of 60 to the path of movement of the rack bar 31, and with the teeth 33 at an angle of 30 to the path of movement of each rack bar 25. These angles give the operating bar 31 a mechanical advantage of 2 to 1 over the short rack bars 25. Other suitable angles may be substituted, providing the sum of the angles equals Considering the mechanism thus far described, it will be seen that longitudinal movement of the operating bar 31 (Fig. 8) will effect corresponding and simultaneous 25, which movements, however, will be only one-half the length of the associated movements of the operating rack bar 31. Consequently, all of the back bearing blocks 21 will be moved simultaneously forward or rearward and in equal amounts, and the alignment of the bearings will be accurately maintained.
  • Figs. 6 and 7 we have shown mechanism for moving the operating rack bar 31 longitudinally.
  • a fixed bracket 40 supporting spaced bearings 41 and 42 for a threaded shaft 43, which shaft also extends through a correspondingly threaded nut 44.
  • the bearing 42 may be an anti-friction thrust bearing.
  • the nut 44 has an offset arm 45 slotted at 46 to receive the operating rack bar 31, which extends therethrough.
  • a cross-pin 47 holds these parts in assembled relation.
  • the cross-pin 47 may be fixed in the bar 31, and the ends of the cross-pin may be received in open slots 48 in the offset portion 45.
  • a hollow cylindrical casing member 50 (Fig. 6) having an inner hub 51 which is pinned at 52 to the shaft 43.
  • a handle 54 is provided on the casing 50 and may be utilized to turn the shaft 43, which shaft is held from axial movement by a collar 55 and by the thrust bearing 42 which is held on the shaft 43 by a clamping nut 56.
  • the casing 50 may have a peripheral flange 57 with a circular series of holes 58 to receive a locating pin 60, adapted to be inserted in a slot 61 in a fixed bracket 62.
  • the pin 60 may then be inserted in the nearest hole 58 to maintain the adjustment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US417268A 1954-03-19 1954-03-19 Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine Expired - Lifetime US2728111A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE534595D BE534595A (de) 1954-03-19
US417268A US2728111A (en) 1954-03-19 1954-03-19 Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine
GB34226/54A GB755403A (en) 1954-03-19 1954-11-25 Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine
CH329009D CH329009A (de) 1954-03-19 1954-12-01 Streckwerk für Textilmaschinen
FR1116619D FR1116619A (fr) 1954-03-19 1954-12-28 Perfectionnements aux machines d'étirage de textiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US417268A US2728111A (en) 1954-03-19 1954-03-19 Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine

Publications (1)

Publication Number Publication Date
US2728111A true US2728111A (en) 1955-12-27

Family

ID=23653251

Family Applications (1)

Application Number Title Priority Date Filing Date
US417268A Expired - Lifetime US2728111A (en) 1954-03-19 1954-03-19 Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine

Country Status (5)

Country Link
US (1) US2728111A (de)
BE (1) BE534595A (de)
CH (1) CH329009A (de)
FR (1) FR1116619A (de)
GB (1) GB755403A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890495A (en) * 1957-07-25 1959-06-16 Alsacienne Constr Meca Textile drafting apparatus
DE1088849B (de) * 1957-04-11 1960-09-08 Prince Smith & Stells Ltd Streckwerk fuer Spinnmaschinen
US3079647A (en) * 1960-09-09 1963-03-05 Union Screw And Mfg Company Bottom roll stand
US3188834A (en) * 1962-12-10 1965-06-15 Glenoit Mills Means for feeding fibers to a pile fabric knitting machine
US3417435A (en) * 1966-05-25 1968-12-24 Warner Swasey Co Gill box with adjustable delivery rolls
US4969238A (en) * 1988-11-05 1990-11-13 Zinser Textilmaschinen Gmbh Apparatus for selectively securing a carrier member of a textile drafting apparatus
US5619773A (en) * 1993-01-25 1997-04-15 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame
EP1251193A1 (de) * 2001-04-17 2002-10-23 Hara Corporation Streckwerk

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US125661A (en) * 1872-04-16 Improvement in mechanisms for adjusting roller-stands in spinning-machines
US847858A (en) * 1906-03-09 1907-03-19 Rodney B Ware Mechanical movement.
US2597278A (en) * 1949-05-04 1952-05-20 Howard & Bullough Ltd Drafting apparatus of textile spinning and analogous machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US125661A (en) * 1872-04-16 Improvement in mechanisms for adjusting roller-stands in spinning-machines
US847858A (en) * 1906-03-09 1907-03-19 Rodney B Ware Mechanical movement.
US2597278A (en) * 1949-05-04 1952-05-20 Howard & Bullough Ltd Drafting apparatus of textile spinning and analogous machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088849B (de) * 1957-04-11 1960-09-08 Prince Smith & Stells Ltd Streckwerk fuer Spinnmaschinen
US2890495A (en) * 1957-07-25 1959-06-16 Alsacienne Constr Meca Textile drafting apparatus
US3079647A (en) * 1960-09-09 1963-03-05 Union Screw And Mfg Company Bottom roll stand
US3188834A (en) * 1962-12-10 1965-06-15 Glenoit Mills Means for feeding fibers to a pile fabric knitting machine
US3417435A (en) * 1966-05-25 1968-12-24 Warner Swasey Co Gill box with adjustable delivery rolls
US4969238A (en) * 1988-11-05 1990-11-13 Zinser Textilmaschinen Gmbh Apparatus for selectively securing a carrier member of a textile drafting apparatus
US5619773A (en) * 1993-01-25 1997-04-15 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame
EP1251193A1 (de) * 2001-04-17 2002-10-23 Hara Corporation Streckwerk

Also Published As

Publication number Publication date
CH329009A (de) 1958-04-15
GB755403A (en) 1956-08-22
BE534595A (de)
FR1116619A (fr) 1956-05-09

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