US2924855A - Weighting unit for fiber attenuating apparatus - Google Patents

Weighting unit for fiber attenuating apparatus Download PDF

Info

Publication number
US2924855A
US2924855A US593630A US59363056A US2924855A US 2924855 A US2924855 A US 2924855A US 593630 A US593630 A US 593630A US 59363056 A US59363056 A US 59363056A US 2924855 A US2924855 A US 2924855A
Authority
US
United States
Prior art keywords
saddle
lever
line top
stirrup
roll
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
US593630A
Inventor
Charlton H Williams
Burrel C Cole
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US593630A priority Critical patent/US2924855A/en
Application granted granted Critical
Publication of US2924855A publication Critical patent/US2924855A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46Loading arrangements
    • D01H5/50Loading arrangements using springs

Definitions

  • This invention relates to a weight unit for fiber attenuating apparatus'and more particularly to saddles and spring weighting units therefor for weighing top rolls against driven lower line rolls of fiber attenuating apparatus, such as spinning frames, rolling frames and the like.
  • An object of our invention is to provide a weighting unit of the character designated which shall include positioning means associated with the back line top roll which controls the location of the pivotal connection of the saddle lever for the front and middle linetop rolls, thus permitting any normal ratio of weight to be applied to the critical front and middle line top rolls, regardless of roll spread or'the overall weight desired, and without materially affecting the ratio of weight applied to the non-critical back line top roll.
  • a more specific object of our invention is to provide positioning means of the character designated which shall be simple of construction and adjustment and fully enclosed without the exposure of threads or other parts to attract lint.
  • a further object of our invention is to provide positioning means of the character designated which does not require the application of lubricant to the contact areas between the weighting unit and the front, middle and back line rolls and in which the contact portions of the weighting unit may be simple and inexpensive to replace after excessive wear.
  • a further object of our invention is to provide a self-contained adjustable spring weighting unit which shall be adapted for installation on conventional type frames to replace the loops, levers, hooks and gravity weigh-ts now employed.
  • a further object of our invention is to provide a spring weighting unit which shall be adapted for installation wholly above the frame and in most cases may be installed on the roll beam by using the same threaded hole now employed for the loop of the gravity system.
  • a further object of our invention is to provide a combined saddle stirrup and a weighting unit which may be released or latched entirely from the front or rear thus resulting in a material saving in man-hours operation, frame cleaning and frame repairs,
  • a still further object of our invention is to provide a spring weighting unit in which the spring tension. adjustment is independent of the stirrup adjustment, whereby any desired weighting may be applied in a uniform manner throughout the frameby gauging the distance between the housing. for the spring and the part actuated by the spring.
  • a saddle with fixed pivot points and a single adjustment that will permit any desired ratio of Weighting on the front, middle and back line rolls.
  • This ad: justment is provided by a positioning bracket which is adapted for adjustment relative to the saddle and contacts the back line roll, thereby controlling the location of the pivot for the saddle lever which applies weight to both the front and middle line rolls.
  • An adjustable spring weighting unit is employed-in place of the conventional type gravity weighting mechanism and a single adjustment thereof controls the overall weighting on the saddle stirrup. Also, the spring Weighting unit is self-contained and is adapted for installation on con.- ventional type frames without alteration.
  • Fig. 1 is a plan view, partly broken away and in se'c tion, showing the manner in which our improved weighting unit is mounted on fiber attenuating apparatus;
  • Fig. 2 is a sectional view taken generally along the line II-II of Fig. 1;
  • Fig. 3 is a sectional view taken along the. line lIIIII of Fig. 2;
  • Fig. 4 is a sectional view taken generally along the line IVIV of Fig. 2;
  • Fig. 5 is an exploded view of the saddle mechanism and the stirrup therefor;
  • Fig. 6 is a fragmental sectional view, with parts omitted for the sake of clarity, and showing a modified form of saddle construction
  • Fig. 7 is a side elevational view, partly in section, showing a modified form of weighting unit.
  • Fig. 8 is a sectional view taken generally along the line VIIL-VHI of Fig. 7. 1
  • the middle line top roll assembly ll may have an apron 13 which passes over a roll 14' and an upper apron nose bar 16. Mounted beneath the top line roll assemblies are lower front, middle and back line roll assemblies 17, 18 and 19,
  • The. lower middle line assembly 13 may be provided with an apron 21 which passes over a roll' 22 and a lower apron nose bar 23.
  • the fiber attenating apparatus shown is also provided with the usual roll beam 24, cap bars 26 and clearer roll assembly 27, as shown.
  • Our improved saddle assembly embodies a main saddle lever 28 which may be formed of a single strip of material bent on itself as at 29 to provide laterally spaced side members 31 and 32 which extend rearwardly substantially parallel to each other. Mounted for pivotal movement intermediate its ends at the forward end of the saddle lever 28 by means of a pivot pin 33in a second sa ddle lever 34.
  • the second saddle lever 34 comprises a U-shaped bracket36 having suitable transverse openings therein for receiving the pivot pin 33.
  • a suitable opening is provided in the base of the U-shaped bracket 36 for receiving a screw 37 which secures relatively flat elongated members 38 and 39 in place, as shown in Fig. 2.
  • the elongated members 38 and 39 extend across the front and middle line top roll assemblies and are provided with openings 41 and 42 therein, respectively, for receiving the screw 37.
  • the screw 37 Preferably, the
  • elongated member 39 is formed of a suitable bearing material, such as lignum-vitai or of a synthetic material and is provided with recesses 43 adjacent the ends thereof for receiving cooperating depressions 44 formed at the ends of the elongated member 38, thereby maintaining the members 38 and 39 in alignment with each other and permitting the lower member 39 to be turned over when the lower bearing surface thereof becomes worn.
  • suitable bearing material such as lignum-vitai or of a synthetic material
  • a positioning bracket 46 Projecting upwardly between the side members 31 and 32 adjacent the rear ends thereof is a positioning bracket 46 which is reduced in thickness as at 47 whereby the upper portion thereof fits slidably between the rear portions of the side members 31 and 32.
  • the reduced' portion 47 on the positioning bracket defines horizontal shoulders 48 and 49 which are in position to engage the under surface of the side members 31 and 32 whereby the rear ends of the side members are supported by the positioning bracket.
  • Elongated longitudinally extending openings 51 and 52 are provided in the side members 31 and 32 adjacent the rear ends thereof and a suitable opening 53 is provided in the portion 47 of the positioning bracket 46 for receiving a bolt 54.
  • the bolt 54 is locked in selective positions along the elongated slots 51 and 52 by means of a nut 56 and lock washer 57.
  • the lower surface of the positioning bracket 46 is recessed as at 58 to accommodate itself to the radius of the back line top roll assembly 12, as shown in Fig. 2.
  • the positioning bracket 46 is formed of a material which requires no lubrication, such as lignum-vitai or synthetic bearing materials. It will thus be seen that by adjusting the location of the saddle lever 28 along the positioning bracket 46, the relative position of the pivot pin 33 to the front and middle top roll assemblies may be varied, it being understood that positioning bracket 46 remains in a stationary position on back line top. roll assembly 12 after initially positioned thereon.
  • a stirrup 61 Extending upwardly between the side members 31 and 32 of the saddle lever 28 and pivotally connected thereto by means of a pivot pin 59 is a stirrup 61.
  • the upper end of the stirrup 61 is provided with an extension 62 which preferably extends upwardly and forwardly of the pivot pin 59, whereby the lower end of the stirrup 61 may be moved rearwardly by depressing the extension 62.
  • the lower end of the stirrup 61 is provided with a. hook-like member 63 which is adapted to engage a notch 64 formed in a lever arm 66.
  • the lever 66 extends between the side walls 69 and 71, as shown in Fig. 4, and is pivotally connected thereby by means of a pivot pin 72.
  • the lever 66 is substantially L-shaped as viewed in side elevation and extends forwardly of the roll beam 24.
  • a handle portion 73 is provided at the forward end of the lever 66.
  • the bracket 68 is provided with a downturned flange 74 at the rear end thereof which extends downwardly alongside the roll beam 24 whereby the 4 bracket 68 is maintained in proper alignment with the roll'beam.
  • a spacer member 76 having an elongated longitudinally extending slot 77 therein for receiving the cap screw 67, as shown. By varying the thickness of the spacer member 76, the bracket 68 may be moved to the desired elevation.
  • Pivotally connected to the lever 66 by means of a pin 78 is one end of an actuating rod 79.
  • the other end of the rod 79 is threaded as at 81 for receiving a nut 82 having an annular shoulder 83 adjacent the outer end thereof.
  • the shoulder 83 is knurled to facilitate turning of the nut 82 by hand.
  • Attached to the upstanding bracket 68 by any suitable means and surrounding the rod 79 is a cylindrical housing 84 having an inturned annular flange 86 at the lower end thereof.
  • a washer 87 Positioned within the housing 84 and contacting the inner surface of the annular flange 86 is a washer 87.
  • a compression type spring 88 Surrounding the rod 79 between the washer 87 and the nut 82 is a compression type spring 88 which urges the nut 82 and the actuating rod 79 rearwardly, thereby urging the lever 66 in a direction to move the saddle stirrup 61 downwardly toward operative position. Due to the fact that the pivotal connection of the rod 79 to the lever 66 is at a substantially greater distance from the pivot 72 than is the notch 64, a considerable force is exerted by the spring 88 to urge the stirrup 61 downward. To adjust the tension of the spring 88, the nut 82 is rotated in the proper direction and is locked in adjusted position by means of a lock nut 89. The annular shoulder 83 on the nut 82 also provides an index member whereby the position of the nut 82 relative to the housing 84 may be measured, thus permitting identical pressures to be applied to all of the spring weigh-ting units of the fiber attenuating apparatus.
  • the forward ends of the side walls 69 and 71 are flared outwardly as at 91 and 92. Also, as shown in dotted lines in Fig. 2, the stirrup 61 is so constructed that, when released, it hangs by gravity out of engagement with the notch 64.
  • the upstanding bracket 68 is secured to the roll beam 24 with the proper width spacer member 76 beneath the same to accommodate the upstanding bracket to the length of the stirrup 61.
  • the downturned flange 74 engages the rear side of the roll beam 24 thus maintaining proper alignment of the bracket 68.
  • the nut 82 is moved in the proper direction to apply the correct tension to the spring 88. By adjusting one nut 82 to the proper position whereby the desired tension is applied to the spring 88, all units on the frame may be set to the same weight by gauging the distance between the ends of the cylinders 84 and the annular shoulders 83 on the nuts 82.
  • the hook portion 63 may be easily engaged with the notch 64 by pressing down on the extension 62 while the forward end of the lever 66 is raised. After the hook-like portion 63 has engaged the notch 64 the forward end of the lever 66 is released, thus locking the hook-like member 63 within the notch 64. To disengage the hooklike member 63 and the notch 64, the forward end of the lever 66 is raised whereupon the lower end of the stirrup 61 swings. by gravity out of engagement. with the notch 64.
  • Fig. 6 ofthe drawings we show a modified form of saddle construction which is adapted for use with a nebless antifriction front line top roll 10a to maintain it in alignment with middle and back line top roll assemblies 11a and 12a, respectively.
  • Our improved saddle assembly shown in Fig. 6 embodies a main saddle lever 28a whichis preferably formed of a single strip of material bent on itself as at 29a to provide laterally spaced side members which are similar in all respect to the side members 31 and 32, described here-to-fore.
  • the saddle lever 28a carries a positioning bracket 46a which engages an annular recess 45 formed in the back line top roll assembly 1211 and is similar in all respects to the positioning bracket 46.
  • a second saddle lever 34a comprising a base 94 having upturned flanges 99 at the sides thereof adapted to engage the sides of the lever 28a whereby the saddle levers 28a and 34a are maintained in alignment with each other.
  • a relatively flat elongated member 96 Secured to the undersurface of the'base 94 of the saddle lever 34a by means of a screw 93 is a relatively flat elongated member 96 which extends rearwardly across the middle line top roll assembly 11a and engages an annular recess 95 in the roll assembly 11a, as shown.
  • the elongated member 96 is provided with a recess 97 adjacent the rear end thereof for receiving a cooperating depression 98 formed at the rear end of the base 94, thereby maintaining the member 96 in alignment with the lever 34a and permitting the member .96 to be turned over when the lower bearing surface thereof becomes worn.
  • the upturned flanges 99 extend forwardly of the base 94 and are provided with elongated, longitudinally extending slots 101 for receiving an adjusting bolt 102 which passes through both flanges 99.
  • a positioning bracket 103 Projecting upwardly between the forwardly extending portions of the flanges 99 is a positioning bracket 103 which is similar in construction to the positioning bracket 46a.
  • the lower surface of the positioning bracket 103 is recessed as at 104 to accommodate itself to the radius of the front line top roll assembly 10a, and is provided with a groove 104a for receiving an annular bead 100 formed on the shaft of the front line top roll assembly 10a.
  • the groove 104a extends in a vertical plane substantially normal to the middle and back line top rolls whereby the nebless front line top roll is maintained in alignment with the middle and back line top rolls.
  • the saddle-lever 340 extends in a direction normal to the rolls of the assemblies 11a and 12a.
  • the annular bead 100 engages the groove 104a in the bracket 10 3 whereby the front line top roll is maintained in parallel alignment with the middle and back line top rolls as the weight is applied directly to the front line top roll through the bracket 103.
  • the bracket 103 is moved along the forward end of the saddle lever 34a to the desired location and is then locked in place by means of the adjusting bolt 102.
  • the saddle mechanism may be readily adjusted to apply the desired ratio of weight to the roll assemblies regardless of roll spread of the drafting apparatus.
  • Figs. 7 and 8 we show a'modified form of spring weighting unit which is adapted for release from the rear of the frame.
  • Mounted on the roll beam 24a by means of a cap screw 67a is an upstanding U-shaped bracket 63a which is provided with an elongated slot 106 therein for receiving the cap screw 67a whereby the position of the bracket 68a relative to the roll beam 24a may be adjusted.
  • a suitable spacer member 76a having an elongated, longitudinally extending slot 77a therein is provided between the roll beam 24a and the bracket 68a whereby the bracket 68a may be moved to the desired elevationto accommodate stirrups of different lengths.
  • a rearwardly extending lever arm 66a having a handle member 73a at the rear end thereof.
  • the lever arm 66a is also substantially L shaped and pivotally connected to the lower end thereof by means of a pivot pin 78a is an actuating rod 79a of a spring weighting unit indicated generally at 107.
  • the spring weighting unit 107 is substantially identical in construction and operation to the spring weighting unit associated with the apparatus shown'in Figs. 1 to 5.
  • the lever arm 66a is provided with a notch 64d; adjacent the pivot pin 72a for engaging the lower hook-like member 63a of a stirrup 61a.
  • a weighting unit for fiber attenuating .apparatu having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to the upper end of said stirrup, a second saddle l ever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever, said second saddle lever having a lower flat surface in supporting contact with the f om an m d l 11 1 t @91 5 nd par b t ea versely o the rolls n a an ene a l pa a e ta P ane passing through the "longitudinal axis of both theffront and middle line top rolls, a positioning bracket adapted to engage the back line top roll, adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivotal connection between the saddle levers may be located at selected positions between the front and middle line top rolls, a hook-like member adjacent the lower end of said stirrup, an
  • a weighting unit as defined in claim 1 in which the stirrup is normally suspended by gravity whereby the hook-like member is out of engagement with said actuating lever and the upper end of the stirrup is provided with an extension whereby the lower end of the stirrup may be moved into engagement with said actuating lever.
  • a stirrup In a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever having elongated laterally spaced side members extending substantially parallel to each other and pivotally connected intermediate their ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward ends of said side members, said second saddle lever having a lower fiat surface in supporting contact with the front and middle line top rolls and movable transversely of the rolls in a plane generally parallel to a plane passing through the longitudinal axis of both the front and middle line top rolls, a positioning bracket adapted to engage the back line top roll, the upper portion of said positioning bracket being reduced in thickness to fit slidably between said side members adjacent the rear ends thereof and defining shoulders for supporting the rear ends of the side members, and releasable means attaching said bracket to said side members at selected positionswhereby thepivotal connection between the saddle levers may be located at selected positions between the first and middle line top rolls.
  • a weighting unit as defined in claim 3 in which the releasable means attaching the positioning bracket to the side members comprises a securing bolt, there being longitudinally extending slots in said side members and an opening through said bracket for receiving said bolt.
  • a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and comprising at least one relatively flat member in bearing contact with and extending across the front and middle line top rolls for transmitting pressure thereto, said second saddle lever being movable transversely of the rolls in a plane generally parallel to a plane passing through the longitudinal axis of both the front and middle line top rolls by the sliding of said flat member transversely of the rolls, a positioning bracket adapted to engage the back line top roll, and adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivotal connection between the saddle levers
  • a stirrup a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and comprising two relatively flat members adapted to extend across the front and middle line top rolls with one member positioned above the other, releasable means securing said members to each other, one of said members having recesses therein and the other having depressions therein disposed to cooperate with saidrecesses whereby said members are maintained in a firstsaddle lever pivotally connected intermediate itsv ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and adapted to extend across the front and middle line top rolls, a positioning bracket adapted to engage the back line top roll, adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivotal connection between the saddle levers may be located at selected positions between the front and middle line top
  • a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and adapted to extend across the front and middle line top'rolls, a positioning bracket adapted to engage the back line top roll, adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivoted connection between the saddle levers may be located at selected positions between the front and middle line top rolls, a second positioning bracket engaging said front line top roll and having a groove extending in a vertical plane substantially normal to the middle and back line top rolls, an annular beadon said front line top roll in position to fit in said groove whereby the front line top roll is maintained substantially in parallel alignment with the middle and back line rolls, and adjustable means connecting said second positioning bracket at selected positions along the forward end of said second saddle lever.
  • a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever, said'second saddle lever extending between and having supporting bearing surfaces on said front and middle line top rolls for transmitting pressure thereto, at least one of the supporting surfaces having a fiat bearing surface in sliding contact with one of said top rolls and said second lever being movable transversely of the rolls along said flat bearing surface in a plane generally parallel to a plane passing through the longitudinal axis of both the front and middle line top rolls, said first 1ever being movable transversely of the rolls with the move ment of said second lever in a plane generally parallel
  • I References Cited in the file of this patent UNITED STATES PATENTS 1,837,926 Toenniessen Dec. 22, 1931 2,224,105 Repass Dec. 3, 1940 2,496,765 Williams Feb.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

1960 c. H. WILLIAMS ETAL WEIGHTING UNIT FOR FIBER ATTENUATING APPARATUS 4 Sheets-Sheet 1 Filed June 25, 195G C/ur/lon. ll. [WI/111m: Burre/ C. C 0/:
A BY
A'H'omeys IN VEN TOR.
Feb. 16, 1960 g. H. WILLIAMS ETAL- 2,924,855
' wmcmmc UNIT FOR FIBER ATTENUATING APPARATUS Filed June 25, 1956 4 Sheets-Sheet 3 v IN V EN TOR. C/za r/fon HWi/ln'ans BY Burre/ C. Cale A'Horaeys 1960 c. H. WILLIAMS ETAL 2,924,855 A A WEIGHTING UNIT FOR FIBER ATTENUATING APPARATUS Filed June 25, 1956 4 Sheets-Sheet 4 INVENT (bar/fan h. Will/a BY Burre/ C. Cole 6 xmme s V United States Patent Charlton H. Williams and Barrel C. Cole, Columbus, Ga; said Cole assignor to said Williams Application June 25, 1956, Serial No. 593,630
9 Claims. (Cl. 19-136) This invention relates to a weight unit for fiber attenuating apparatus'and more particularly to saddles and spring weighting units therefor for weighing top rolls against driven lower line rolls of fiber attenuating apparatus, such as spinning frames, rolling frames and the like.
An object of our invention is to provide a weighting unit of the character designated which shall include positioning means associated with the back line top roll which controls the location of the pivotal connection of the saddle lever for the front and middle linetop rolls, thus permitting any normal ratio of weight to be applied to the critical front and middle line top rolls, regardless of roll spread or'the overall weight desired, and without materially affecting the ratio of weight applied to the non-critical back line top roll.
A more specific object of our invention is to provide positioning means of the character designated which shall be simple of construction and adjustment and fully enclosed without the exposure of threads or other parts to attract lint.
A further object of our invention is to provide positioning means of the character designated which does not require the application of lubricant to the contact areas between the weighting unit and the front, middle and back line rolls and in which the contact portions of the weighting unit may be simple and inexpensive to replace after excessive wear.
A further object of our invention is to provide a self-contained adjustable spring weighting unit which shall be adapted for installation on conventional type frames to replace the loops, levers, hooks and gravity weigh-ts now employed.
A further object of our invention is to provide a spring weighting unit which shall be adapted for installation wholly above the frame and in most cases may be installed on the roll beam by using the same threaded hole now employed for the loop of the gravity system.
A further object of our invention is to provide a combined saddle stirrup and a weighting unit which may be released or latched entirely from the front or rear thus resulting in a material saving in man-hours operation, frame cleaning and frame repairs,
A still further object of our invention is to provide a spring weighting unit in which the spring tension. adjustment is independent of the stirrup adjustment, whereby any desired weighting may be applied in a uniform manner throughout the frameby gauging the distance between the housing. for the spring and the part actuated by the spring.
As is well known in the, art to which our invention re.-.
lates, roll spreads must be adjusted to accommodate the materials or fiber lengths being, processed and the applied weight for best performance varies with the 2,924,855 Patented Feb- 16, 19.60
ice
particular drafting system employed and with the speeds of the respective lines which create the draft. Conventional-type saddles do not permit proper weight distribution to the respective lines of top rolls and unless oil impregnated wood or a synthetic material is employed on the saddles for contact with the rolls, constant lubrication is required. Also, if one or more of such contacts are employed for lubricating the saddle, excessive wear will affect the Weight distribution. Difii culties have also been encountered in the application of weight to the saddles of conventional type fiber attenuating apparatus due to'the fact that the usual weight hook and gravity Weight hung thereon does not provide for accurate application of weight to the plurality of saddles on the frame. To increase or decrease the weight applied, it is necessary either to change the levers or the pivot points thereon or change the weights. The weights also aid considerably to the overall weight of the frame.
To overcome the above and othere difliculties, we provide a saddle with fixed pivot points and a single adjustment that will permit any desired ratio of Weighting on the front, middle and back line rolls. This ad: justment is provided by a positioning bracket which is adapted for adjustment relative to the saddle and contacts the back line roll, thereby controlling the location of the pivot for the saddle lever which applies weight to both the front and middle line rolls. An adjustable spring weighting unit is employed-in place of the conventional type gravity weighting mechanism and a single adjustment thereof controls the overall weighting on the saddle stirrup. Also, the spring Weighting unit is self-contained and is adapted for installation on con.- ventional type frames without alteration.
Apparatus embodying features of our invention is i1.- lustrated in the accompanying drawings, forming a part of this application, in which:
Fig. 1 is a plan view, partly broken away and in se'c tion, showing the manner in which our improved weighting unit is mounted on fiber attenuating apparatus;
Fig. 2 is a sectional view taken generally along the line II-II of Fig. 1;
Fig. 3 is a sectional view taken along the. line lIIIII of Fig. 2;
Fig. 4 is a sectional view taken generally along the line IVIV of Fig. 2;
Fig. 5 is an exploded view of the saddle mechanism and the stirrup therefor; I
Fig. 6 is a fragmental sectional view, with parts omitted for the sake of clarity, and showing a modified form of saddle construction;
Fig. 7 is a side elevational view, partly in section, showing a modified form of weighting unit; and,
Fig. 8 is a sectional view taken generally along the line VIIL-VHI of Fig. 7. 1
Referring now to the drawings for a better understanding of our invention, we show fiber attenuating apparatus having front, middle and back linetop roll assemblies, 10, 11 and 12, respectively. The middle line top roll assembly llmay have an apron 13 which passes over a roll 14' and an upper apron nose bar 16. Mounted beneath the top line roll assemblies are lower front, middle and back line roll assemblies 17, 18 and 19,
respectively. The. lower middle line assembly 13 may be provided with an apron 21 which passes over a roll' 22 and a lower apron nose bar 23. The fiber attenating apparatus shown is also provided with the usual roll beam 24, cap bars 26 and clearer roll assembly 27, as shown.
Our improved saddle assembly embodies a main saddle lever 28 which may be formed of a single strip of material bent on itself as at 29 to provide laterally spaced side members 31 and 32 which extend rearwardly substantially parallel to each other. Mounted for pivotal movement intermediate its ends at the forward end of the saddle lever 28 by means of a pivot pin 33in a second sa ddle lever 34. The second saddle lever 34 comprises a U-shaped bracket36 having suitable transverse openings therein for receiving the pivot pin 33. A suitable opening is provided in the base of the U-shaped bracket 36 for receiving a screw 37 which secures relatively flat elongated members 38 and 39 in place, as shown in Fig. 2. The elongated members 38 and 39 extend across the front and middle line top roll assemblies and are provided with openings 41 and 42 therein, respectively, for receiving the screw 37. Preferably, the
elongated member 39 is formed of a suitable bearing material, such as lignum-vitai or of a synthetic material and is provided with recesses 43 adjacent the ends thereof for receiving cooperating depressions 44 formed at the ends of the elongated member 38, thereby maintaining the members 38 and 39 in alignment with each other and permitting the lower member 39 to be turned over when the lower bearing surface thereof becomes worn.
Projecting upwardly between the side members 31 and 32 adjacent the rear ends thereof is a positioning bracket 46 which is reduced in thickness as at 47 whereby the upper portion thereof fits slidably between the rear portions of the side members 31 and 32. The reduced' portion 47 on the positioning bracket defines horizontal shoulders 48 and 49 which are in position to engage the under surface of the side members 31 and 32 whereby the rear ends of the side members are supported by the positioning bracket. Elongated longitudinally extending openings 51 and 52 are provided in the side members 31 and 32 adjacent the rear ends thereof and a suitable opening 53 is provided in the portion 47 of the positioning bracket 46 for receiving a bolt 54. The bolt 54 is locked in selective positions along the elongated slots 51 and 52 by means of a nut 56 and lock washer 57.- The lower surface of the positioning bracket 46 is recessed as at 58 to accommodate itself to the radius of the back line top roll assembly 12, as shown in Fig. 2. Preferably, the positioning bracket 46 is formed of a material which requires no lubrication, such as lignum-vitai or synthetic bearing materials. It will thus be seen that by adjusting the location of the saddle lever 28 along the positioning bracket 46, the relative position of the pivot pin 33 to the front and middle top roll assemblies may be varied, it being understood that positioning bracket 46 remains in a stationary position on back line top. roll assembly 12 after initially positioned thereon.
Extending upwardly between the side members 31 and 32 of the saddle lever 28 and pivotally connected thereto by means of a pivot pin 59 is a stirrup 61. The upper end of the stirrup 61 is provided with an extension 62 which preferably extends upwardly and forwardly of the pivot pin 59, whereby the lower end of the stirrup 61 may be moved rearwardly by depressing the extension 62.
The lower end of the stirrup 61 is provided with a. hook-like member 63 which is adapted to engage a notch 64 formed in a lever arm 66. Mounted on the roll beam 24 by any suitable means, such as by a cap screw 67, is an upstanding bracket 68 having laterally spaced side walls 69 and 71. The lever 66 extends between the side walls 69 and 71, as shown in Fig. 4, and is pivotally connected thereby by means of a pivot pin 72. As shown in Fig. 2, the lever 66 is substantially L-shaped as viewed in side elevation and extends forwardly of the roll beam 24. Preferably, a handle portion 73 is provided at the forward end of the lever 66.
As shown in Fig. 2, the bracket 68 is provided with a downturned flange 74 at the rear end thereof which extends downwardly alongside the roll beam 24 whereby the 4 bracket 68 is maintained in proper alignment with the roll'beam. To adjust the vertical position of the bracket 68 so as to accommodate different length stirrup units, we provide a spacer member 76 having an elongated longitudinally extending slot 77 therein for receiving the cap screw 67, as shown. By varying the thickness of the spacer member 76, the bracket 68 may be moved to the desired elevation.
Pivotally connected to the lever 66 by means of a pin 78 is one end of an actuating rod 79. The other end of the rod 79 is threaded as at 81 for receiving a nut 82 having an annular shoulder 83 adjacent the outer end thereof. Preferably, the shoulder 83 is knurled to facilitate turning of the nut 82 by hand. Attached to the upstanding bracket 68 by any suitable means and surrounding the rod 79 is a cylindrical housing 84 having an inturned annular flange 86 at the lower end thereof. Positioned within the housing 84 and contacting the inner surface of the annular flange 86 is a washer 87. Surrounding the rod 79 between the washer 87 and the nut 82 is a compression type spring 88 which urges the nut 82 and the actuating rod 79 rearwardly, thereby urging the lever 66 in a direction to move the saddle stirrup 61 downwardly toward operative position. Due to the fact that the pivotal connection of the rod 79 to the lever 66 is at a substantially greater distance from the pivot 72 than is the notch 64, a considerable force is exerted by the spring 88 to urge the stirrup 61 downward. To adjust the tension of the spring 88, the nut 82 is rotated in the proper direction and is locked in adjusted position by means of a lock nut 89. The annular shoulder 83 on the nut 82 also provides an index member whereby the position of the nut 82 relative to the housing 84 may be measured, thus permitting identical pressures to be applied to all of the spring weigh-ting units of the fiber attenuating apparatus.
To facilitate insertion of the hook portion 63 of the stirrup 61 between the side walls 69 and 71, of the upturned bracket 68 and into engagement with the notch 64 of the lever 66, the forward ends of the side walls 69 and 71 are flared outwardly as at 91 and 92. Also, as shown in dotted lines in Fig. 2, the stirrup 61 is so constructed that, when released, it hangs by gravity out of engagement with the notch 64.
Fromthe foregoing description, the operation of our improved weighting unit will be readily understood. The side members 31 and 32 are moved relative to the positioning bracket 46 to position the pivot pin 33 of the saddle member 34 at the proper location between the front and middle line top roll assemblies. The positioning bracket 46 is then locked'in this adjusted position by means of the bolt 54 and lock nut 56.
The upstanding bracket 68 is secured to the roll beam 24 with the proper width spacer member 76 beneath the same to accommodate the upstanding bracket to the length of the stirrup 61. The downturned flange 74 engages the rear side of the roll beam 24 thus maintaining proper alignment of the bracket 68. The nut 82 is moved in the proper direction to apply the correct tension to the spring 88. By adjusting one nut 82 to the proper position whereby the desired tension is applied to the spring 88, all units on the frame may be set to the same weight by gauging the distance between the ends of the cylinders 84 and the annular shoulders 83 on the nuts 82.
Due to the fact that the stirrup 61 is so balanced about the pivot pin 59 that the hook portion thereof normally hangs out of engagement with the notch 64, the hook portion 63 may be easily engaged with the notch 64 by pressing down on the extension 62 while the forward end of the lever 66 is raised. After the hook-like portion 63 has engaged the notch 64 the forward end of the lever 66 is released, thus locking the hook-like member 63 within the notch 64. To disengage the hooklike member 63 and the notch 64, the forward end of the lever 66 is raised whereupon the lower end of the stirrup 61 swings. by gravity out of engagement. with the notch 64. The provision of the outwardly flared portions on the side walls 69 and 71 of the upstanding bracket 68 aids in the movement of the hook portion 63 into and out of engagement with the notch 64. It will be noted that the'inner portions of the side walls 69 and "71 adjacent the outwardly flared portions 91 and 92 are slightly further apart than the thickness of the stirrup 61 and the lever 66. t
In Fig. 6 ofthe drawings, we show a modified form of saddle construction which is adapted for use with a nebless antifriction front line top roll 10a to maintain it in alignment with middle and back line top roll assemblies 11a and 12a, respectively. Our improved saddle assembly shown in Fig. 6 embodies a main saddle lever 28a whichis preferably formed of a single strip of material bent on itself as at 29a to provide laterally spaced side members which are similar in all respect to the side members 31 and 32, described here-to-fore. Also, the saddle lever 28a carries a positioning bracket 46a which engages an annular recess 45 formed in the back line top roll assembly 1211 and is similar in all respects to the positioning bracket 46.
Mounted for pivotal movement intermediate its ends at the forward end of the saddle lever 28a by means of a pivot pin 33a is a second saddle lever 34a comprising a base 94 having upturned flanges 99 at the sides thereof adapted to engage the sides of the lever 28a whereby the saddle levers 28a and 34a are maintained in alignment with each other. Secured to the undersurface of the'base 94 of the saddle lever 34a by means of a screw 93 is a relatively flat elongated member 96 which extends rearwardly across the middle line top roll assembly 11a and engages an annular recess 95 in the roll assembly 11a, as shown. The elongated member 96 is provided with a recess 97 adjacent the rear end thereof for receiving a cooperating depression 98 formed at the rear end of the base 94, thereby maintaining the member 96 in alignment with the lever 34a and permitting the member .96 to be turned over when the lower bearing surface thereof becomes worn.
The upturned flanges 99 extend forwardly of the base 94 and are provided with elongated, longitudinally extending slots 101 for receiving an adjusting bolt 102 which passes through both flanges 99.
Projecting upwardly between the forwardly extending portions of the flanges 99 is a positioning bracket 103 which is similar in construction to the positioning bracket 46a. The lower surface of the positioning bracket 103 is recessed as at 104 to accommodate itself to the radius of the front line top roll assembly 10a, and is provided with a groove 104a for receiving an annular bead 100 formed on the shaft of the front line top roll assembly 10a. The groove 104a extends in a vertical plane substantially normal to the middle and back line top rolls whereby the nebless front line top roll is maintained in alignment with the middle and back line top rolls.
The operation of the saddle assembly shown in Fig. 6 is similar to that of the saddle assemblies shown in Figs.
1 through 5. The rear end of the saddle lever 28a is adjusted along positioning bracket 46a to locate the pivot pin 33a at the proper position between the front and middle line top roll assemblies 10a and 11a.
With the positioning bracket 46a and the rear end of the elongated member 96 positioned within the recesses 45 and 95 respectively, the saddle-lever 340: extends in a direction normal to the rolls of the assemblies 11a and 12a. The annular bead 100 engages the groove 104a in the bracket 10 3 whereby the front line top roll is maintained in parallel alignment with the middle and back line top rolls as the weight is applied directly to the front line top roll through the bracket 103. To vary the position of the bracket 103 relative to the pin 33a, the bracket 103 is moved along the forward end of the saddle lever 34a to the desired location and is then locked in place by means of the adjusting bolt 102.
By providing the positioning bracket 103, which is ad justable relative to the saddle lever 34a, in combination with the elongated member 96, which slidably engages the middle line roll assembly 11a, the saddle mechanism may be readily adjusted to apply the desired ratio of weight to the roll assemblies regardless of roll spread of the drafting apparatus.
In Figs. 7 and 8 we show a'modified form of spring weighting unit which is adapted for release from the rear of the frame. Mounted on the roll beam 24a by means of a cap screw 67a is an upstanding U-shaped bracket 63a which is provided with an elongated slot 106 therein for receiving the cap screw 67a whereby the position of the bracket 68a relative to the roll beam 24a may be adjusted. A suitable spacer member 76a having an elongated, longitudinally extending slot 77a therein is provided between the roll beam 24a and the bracket 68a whereby the bracket 68a may be moved to the desired elevationto accommodate stirrups of different lengths.
Fivotally connected to the bracket 68a by means of a pivot pin 72a is a rearwardly extending lever arm 66a having a handle member 73a at the rear end thereof. As shown in Fig. 7, the lever arm 66a is also substantially L shaped and pivotally connected to the lower end thereof by means of a pivot pin 78a is an actuating rod 79a of a spring weighting unit indicated generally at 107. The spring weighting unit 107 is substantially identical in construction and operation to the spring weighting unit associated with the apparatus shown'in Figs. 1 to 5. The lever arm 66a is provided with a notch 64d; adjacent the pivot pin 72a for engaging the lower hook-like member 63a of a stirrup 61a.
The operation of the'spring weight unit shown in Figs. 7 and 8 is substantially identical to that of the spring weighting 'unit disclosed in Figs. 1 to 5, the principal difference being that the lever arm 66a extends rearwardly of the frame rather than forwardly thereof.
From the foregoing, it will be seen that we have devised an improved weighting unit for fiber attenuating apparatus which is simple of construction and operation and which reduces greatly the time required to engage and disengage the'weighting unit. This is particularly true in view of the fact that the release and application of weight is from either the front or rear of the apparatus and no part of the apparatus falls apart during such release and application of weight. A further advantage lies in the fact that the entire weighting unit is mounted above the roll beam. Alsofby providing a single adjustment in the form of a positioning bracket which contacts the back line top roll, the ratio of weighting on the rolls is accurately controlled regardless of roll spreads. Furthermore, 'by providing a single spring adjustment which controls the overall weighting of the saddle stirrup, the application of weight on the stirrup may be adjusted accurately in a minimum of time.
While we have shown our invention in several forms it will be obvious to those skilled in the art that it is not so limited but is susceptible of various other changes and modifications without departing from the spirit thereof, and we desired, therefore, that only such limitations shall be placed thereupon as are specifically set forth in the appended claims.
What we'claim is: 1. In a weighting unit for fiber attenuating .apparatu having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to the upper end of said stirrup, a second saddle l ever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever, said second saddle lever having a lower flat surface in supporting contact with the f om an m d l 11 1 t @91 5 nd par b t ea versely o the rolls n a an ene a l pa a e ta P ane passing through the "longitudinal axis of both theffront and middle line top rolls, a positioning bracket adapted to engage the back line top roll, adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivotal connection between the saddle levers may be located at selected positions between the front and middle line top rolls, a hook-like member adjacent the lower end of said stirrup, an outwardly extending actuating lever releasably connected to said hook-like member, and means urging said lever in a direction to urge said stirrup toward operative position.
2. A weighting unit ,as defined in claim 1 in which the stirrup is normally suspended by gravity whereby the hook-like member is out of engagement with said actuating lever and the upper end of the stirrup is provided with an extension whereby the lower end of the stirrup may be moved into engagement with said actuating lever.
3. In a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever having elongated laterally spaced side members extending substantially parallel to each other and pivotally connected intermediate their ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward ends of said side members, said second saddle lever having a lower fiat surface in supporting contact with the front and middle line top rolls and movable transversely of the rolls in a plane generally parallel to a plane passing through the longitudinal axis of both the front and middle line top rolls, a positioning bracket adapted to engage the back line top roll, the upper portion of said positioning bracket being reduced in thickness to fit slidably between said side members adjacent the rear ends thereof and defining shoulders for supporting the rear ends of the side members, and releasable means attaching said bracket to said side members at selected positionswhereby thepivotal connection between the saddle levers may be located at selected positions between the first and middle line top rolls.
4. A weighting unit as defined in claim 3 in which the releasable means attaching the positioning bracket to the side members comprises a securing bolt, there being longitudinally extending slots in said side members and an opening through said bracket for receiving said bolt. 5. In a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and comprising at least one relatively flat member in bearing contact with and extending across the front and middle line top rolls for transmitting pressure thereto, said second saddle lever being movable transversely of the rolls in a plane generally parallel to a plane passing through the longitudinal axis of both the front and middle line top rolls by the sliding of said flat member transversely of the rolls, a positioning bracket adapted to engage the back line top roll, and adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivotal connection between the saddle levers may be located at selected positions between the front and middle line top rolls.
6. In a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and comprising two relatively flat members adapted to extend across the front and middle line top rolls with one member positioned above the other, releasable means securing said members to each other, one of said members having recesses therein and the other having depressions therein disposed to cooperate with saidrecesses whereby said members are maintained in a firstsaddle lever pivotally connected intermediate itsv ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and adapted to extend across the front and middle line top rolls, a positioning bracket adapted to engage the back line top roll, adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivotal connection between the saddle levers may be located at selected positions between the front and middle line top rolls, a second positioning bracket adapted to engage the front line top roll and having an alignment member cooperating with an annularly disposed member on the frontline top roll whereby said front line top roll is maintained in substantially parallel alignment with the middle and back line top rolls, and adjustable means connecting said second positioning bracket at selected positions along the forward end of said second saddle lever.
8. In a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever and adapted to extend across the front and middle line top'rolls, a positioning bracket adapted to engage the back line top roll, adjustable means connecting the rear end of said first saddle lever at selected positions along said positioning bracket whereby the pivoted connection between the saddle levers may be located at selected positions between the front and middle line top rolls, a second positioning bracket engaging said front line top roll and having a groove extending in a vertical plane substantially normal to the middle and back line top rolls, an annular beadon said front line top roll in position to fit in said groove whereby the front line top roll is maintained substantially in parallel alignment with the middle and back line rolls, and adjustable means connecting said second positioning bracket at selected positions along the forward end of said second saddle lever.
9. In a weighting unit for fiber attenuating apparatus having front, middle and back line top rolls, a stirrup, a first saddle lever pivotally connected intermediate its ends to said stirrup, a second saddle lever pivotally connected intermediate its ends adjacent the forward end of said first saddle lever, said'second saddle lever extending between and having supporting bearing surfaces on said front and middle line top rolls for transmitting pressure thereto, at least one of the supporting surfaces having a fiat bearing surface in sliding contact with one of said top rolls and said second lever being movable transversely of the rolls along said flat bearing surface in a plane generally parallel to a plane passing through the longitudinal axis of both the front and middle line top rolls, said first 1ever being movable transversely of the rolls with the move ment of said second lever in a plane generally parallel I (References on following page) References Cited in the file of this patent UNITED STATES PATENTS 1,837,926 Toenniessen Dec. 22, 1931 2,224,105 Repass Dec. 3, 1940 2,496,765 Williams Feb. 7, 1950
US593630A 1956-06-25 1956-06-25 Weighting unit for fiber attenuating apparatus Expired - Lifetime US2924855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US593630A US2924855A (en) 1956-06-25 1956-06-25 Weighting unit for fiber attenuating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US593630A US2924855A (en) 1956-06-25 1956-06-25 Weighting unit for fiber attenuating apparatus

Publications (1)

Publication Number Publication Date
US2924855A true US2924855A (en) 1960-02-16

Family

ID=24375479

Family Applications (1)

Application Number Title Priority Date Filing Date
US593630A Expired - Lifetime US2924855A (en) 1956-06-25 1956-06-25 Weighting unit for fiber attenuating apparatus

Country Status (1)

Country Link
US (1) US2924855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014249A (en) * 1960-05-23 1961-12-26 Cole Engineering Corp Top roll unit for fiber attenuating apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837926A (en) * 1928-10-09 1931-12-22 Toenniessen Ernst Multiple-roller drawing frame with tilting lever weight
US2224105A (en) * 1940-04-13 1940-12-03 H & B American Machine Company Saddle for textile machines
GB594133A (en) * 1944-09-15 1947-11-04 Howard & Bullough Ltd Improved roller-weighting means for textile drawing, spinning and analogous machinery
US2496765A (en) * 1945-08-31 1950-02-07 Eula W Williams Saddle, stirrup, and bearing construction for spinning or roving frames
US2565228A (en) * 1948-09-03 1951-08-21 Saco Lowell Shops Drawing mechanism for spinning and roving frames
GB731191A (en) * 1953-01-22 1955-06-01 Casablancas High Draft Co Ltd Improvements in roller weighting means for textile fibre drafting mechanisms
GB740725A (en) * 1953-07-31 1955-11-16 Tmm Research Ltd Improvements in roller-weighting apparatus for textile machinery
US2750633A (en) * 1956-06-19 Noguera

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750633A (en) * 1956-06-19 Noguera
US1837926A (en) * 1928-10-09 1931-12-22 Toenniessen Ernst Multiple-roller drawing frame with tilting lever weight
US2224105A (en) * 1940-04-13 1940-12-03 H & B American Machine Company Saddle for textile machines
GB594133A (en) * 1944-09-15 1947-11-04 Howard & Bullough Ltd Improved roller-weighting means for textile drawing, spinning and analogous machinery
US2496765A (en) * 1945-08-31 1950-02-07 Eula W Williams Saddle, stirrup, and bearing construction for spinning or roving frames
US2565228A (en) * 1948-09-03 1951-08-21 Saco Lowell Shops Drawing mechanism for spinning and roving frames
GB731191A (en) * 1953-01-22 1955-06-01 Casablancas High Draft Co Ltd Improvements in roller weighting means for textile fibre drafting mechanisms
GB740725A (en) * 1953-07-31 1955-11-16 Tmm Research Ltd Improvements in roller-weighting apparatus for textile machinery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014249A (en) * 1960-05-23 1961-12-26 Cole Engineering Corp Top roll unit for fiber attenuating apparatus

Similar Documents

Publication Publication Date Title
US2565228A (en) Drawing mechanism for spinning and roving frames
US2525647A (en) Weighting mechanism for textile drawing machines
US2125859A (en) Scraper
US2644988A (en) Means for supporting and loading the top rollers of textile drafting apparatus
US2924855A (en) Weighting unit for fiber attenuating apparatus
US2758340A (en) Drafting mechanism
US2326979A (en) Guiding arrangement for top rolls
US2329655A (en) Drafting mechanism for spinning and roving frames
US2496765A (en) Saddle, stirrup, and bearing construction for spinning or roving frames
US2813308A (en) Overarm for fiber attenuating apparatus
US2865057A (en) Top roll guides
US2249408A (en) Pressure applying means for spinning frames
US3014248A (en) Center suspended top roll and weighting assembly for fiber attenuating apparatus
US2218108A (en) Paper feed mechanism
US2896270A (en) Top roll supporting and weighting apparatus for textile drafting machines
US3021574A (en) Textile drawing mechanism
US2301226A (en) Pressure applying mechanism for top rolls
US2301701A (en) Spring tension unit for drawing mechanism
US3031724A (en) Top roll guides
US3014249A (en) Top roll unit for fiber attenuating apparatus
US1387816A (en) Pressure mechanism for roll-stands
US2300188A (en) Pressure applying means for spinning frames
US3126587A (en) Apparaius
US3150418A (en) Strand handling apparatus
US2381856A (en) Drawing mechanism for spinning and roving frames