US2339513A - Weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibers - Google Patents

Weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibers Download PDF

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Publication number
US2339513A
US2339513A US486148A US48614843A US2339513A US 2339513 A US2339513 A US 2339513A US 486148 A US486148 A US 486148A US 48614843 A US48614843 A US 48614843A US 2339513 A US2339513 A US 2339513A
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rollers
machines
weighting
machine
cam
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US486148A
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English (en)
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Pierrepont Donald
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Individual
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    • 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
    • D01H5/46—Loading arrangements
    • D01H5/48—Loading arrangements using weights

Definitions

  • This invention of improvements in or relating to weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibers refers more particularly to mechanism for quickly relieving, and re-applying, weight to the covered top rollers of the drawing-head of a machine of the kind referred to.
  • a further disadvantage experienced with some known weight-relieving mechanisms is that when the weighting hooks are removed from the arbors of a top roller in order that said top roller may be lifted out for cleaning or changing, there is a tendency for the weight wires to fall out of position and sometimes to be not readily accessible for replacement.
  • This invention contemplates the provision of mechanism which permits the Weight to be lifted from the top rollers of a drawing-head sufliciently to prevent the formation of flats on the top rollers, and reapplication of said weight, with a minimum of efforton the part of the operative, which also permits the top rollers to be quickly relieved of their weight by a further slight effort on the part of the operative so that said rollers can be lifted out for cleaning or changing, and further, which prevents the rollers from being unweighted whilst the machine is running and alternatively prevents the machine from being set in motion if the rollers are unweighted.
  • the weighting, hooks from which the weights are suspended are so arranged that when lifted from the rollers they are retained in a conveniently accessible position in the machine, whereby to facilitate the reweighting of the top rollers.
  • Mechanism according to the invention includes a set of independent weights threaded on to weighting hooks for suspension from the top rollers of said draw-head, a bridge piece penetrating said weights in a direction at rightangles to the axes of said top rollers, said bridge piece being carried between bearing brackets secured to the frame of the machine, with freedom for limited up and down movement between said brackets, a shaft journalled in said brackets in parallelism with said bridge piece, a cam fast on said shaft, at least one lobe of said cam being higher than the other or others, a handle on said shaft whereby said shaft maybe turned about its axis, within limits, a finger or bolt pivotally mounted on the boss of on of said bearing brackets, whereby, when the machine is running, turning of the handleto relieve the weighting of the top rollers is prevented by the obstruction of said bolt by the setting-on rod of the machine, but
  • Fig. l is a fragmentary side elevation of a draw-head of a combing machine with Weight-relieving mechanism according to the invention applied thereto;
  • Fig. 2 is a fragmentary side view of weight-relieving mechanism shown in Fig. 1;
  • Fig. 3 is a plan View of a detail part, later to be referred to; the parts in the foregoing figures being assumed to be in the position occupied when the combing machine is running;
  • Figs. 4 and 5 are similar views to Figs.
  • Figs. 6 and '7 are similar views to Figs. 4 and 5, but with the weight-relieving mechanism moved to a second lift position to free the top rollers and permit of their removal from the roller stands while still preventing the machine from being set in motion.
  • FIG. 1 which shows in side elevation a draw-box head of a combing machine, II] indicates the frame of the machine, II the roller stands, and I2, I3 the top and bottom drawing rollers.
  • a short shaft I4 hereinafter referred to as a cam-shaft, journalled in bearings in a pair of spaced brackets I5, I6 carried by the frame I0.
  • cam-shaft I4 Fixed on the cam-shaft I4 is a cam ll of an axial dimension slightly less than the distance between the adjacent faces of the bearing brackets I5, I6.
  • the cam I1 is formed with three lobes I8, I9, 20, providing cam rises extending longitudinally of said cam, the central lobe' I9 projecting further from the axis of the cam shaft -I4 than the outer lobes I 8, 20, see Figs. 2, 4 and '6.
  • the second outer lobe 26 is provided to obviate the need for right and lefthanded cams.
  • a bridgepiece 2I Mounted for vertical sliding movement within the bearing brackets I5, I6 and in .close proximity to the cam I1 is a bridgepiece 2I the under side of which is formed with a cam surface 2Ia while the top side presents a plane surface 2I b which in one condition of use affords bearing for a set of weights 22 each having an orifice 22a enabling said weights to be threaded over the bridge-piece 2 I, the cam shaft I4 and the cam I1, and located between the bearing brackets I5, I6.
  • the-bridge-piece 2I rests by its ends 2Ic, 2Id on the bosses Ia, Hill of the respective bearing brackets I5, I6, see Figs. 1 and 2, the upper part of each of said bosses being formed with a flat to receive the bridge-piece 2 I.
  • each weight 22 is suspended by a pair of hooks23 from the arbors of the respective top roller I2 in known manner.
  • Each weight/22 isnarrow in relation to its depth, and in each narrow side adjacent to the top of the weight there is formed an open-ended groove or recess 22b whereby in effect lugs 220 are provided on opposite sides of the weight 22.
  • the lower ends of the weighting hooks 23 penetrate holes in the lugs 22c and are screw-threaded and provided with washers 24 and nuts 25 to secure the weights on the hooks.
  • the cam-shaft I I projects at one end through the boss I5a of the bracket I5 and is there fitted witha stop 26a adapted to abut against a stop IS?) on the boss I5aof the bracket I5 to limit the forward movement of the handle 26.
  • Similar stop s26b; I50 respectively, are also provided for use forthe same purpose with a machine of opposite hand.
  • a finger or bolt 21 extending in an upwardly inclined direction with its free end penetrating a hole in a guide bracket 28 secured to the outer face of the bearing bracket I5.
  • the guide bracket 28 also affords a bearing for the usual setting-on rod 29 of the machine which has on its underside a notch 29a wide enough to allow entry of the bolt 21 therein.
  • the notch 29a In one position of use the notch 29a is in the path of movement of the bolt 21, while in another position of use the setting-on rod 29 interferes with the movement of the bolt 21.
  • the position of the handle 26 on the camshaft I4 will be vertically downwards i. e., at six oclock, and the setting-on rod 29 will be in a position which prevents the bolt 21 from sliding through the guide bracket 28, see Figs. 2 and 3, and, consequently, the handle 26 is held against movement to relieve the weighing on the rollers.
  • the setting-on rod When the machine is stopped, the setting-on rod is in a position where the notch 29a in the underside of the setting-on rod 29 is in register with the hole in the guide bracket 28 through which the bolt 21 slides, and consequently there is free passage for the bolt 21 through the bracket 28, see Figs. 4 and 5.
  • the handle 26 is moved approximately to seven oclock position whereby the cam shaft I4 is given a partial rotation, whereupon one ofthe outer lobes, e. g., the lobe IB, is caused to bear against and move the bridgepiece 2
  • This movement of the handle 26 is so slight that it entails very little effort on the part of the operative to relieve the weighting instantly.
  • the handle 26 is moved to a position approximating to nine oclock, thus turning the cam-shaft I4 and causing the central lobe IQ of the cam I! to press against and lift the bridge piece 2
  • Undesirable downward movement of the weighting hooks 23 is restricted by the bottom ends of the hooks 23 abutting against the shoulders 22d formed by the floors of the recesses 22b in the weights 22, whereby the weighting hooks are retained in conveniently accessible position.
  • the bolt 27 projects further through the guide bracket 26, but still engages the notch 29a in the setting-on rod 29, see Fig. 7, to prevent endwise movement of the rod 29.
  • the movement of the handle 26 is restricted in this direction by the stop 26a on the handle 26 abutting against the stop b on the adjacent bearing bracket I5, see Fig. 6.
  • the weighting hooks 23 are replaced in position over the arbors of the top rollers l2 and the handle is returned to initial position, whereupon the turning of the cam-shaft l4 and cam ll permits the bridge piece 2! to fall by gravity until the weights 22 are again free of the bridge piece 2i and suspended on the weighting hooks 23 from the top rollers l2.
  • the bolt 21 is withdrawn from engagement with the notch Eda in the setting-on rod 29 which is thus made free t be moved to start the machine.
  • top rollers cannot be unweighted while the machine is running.
  • weighting mechanism for said rollers including fixed bearing brackets, a set of individual weights, on for each top roller, weighting hooks for suspension of said weights from the top rollers, a bridge-piece penetrating said weights in a direction at right angles to the axes of said top rollers, said bridge-piece being carried, with freedom for structed by the setting-on rod when the machine is running, whereby to prevent turning of said handle to turn said cam and relieve the weighting on the top rollers and, when the machin is stopped, being free to be slid into engagement with said groove, whereby to prevent endwise movement of said setting-on rod to start the machine.
  • Weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibers as claimed in claim 1 in which the cam lobes ar so devised that a slight initial turning movement of the handle suifl'lces to release the weighting of the top rollers, and continued turning movement of said handle effects complete release of the top rollers.
  • Weighting mechanism as claimed in claim 1 in which the cam is reversible and formed with three lobes providing cam rises extending longitudinally of said cam, the central lobe projecting further from the axis of the cam-shaft than the outer lobes.
  • each weight is narrow in relation to its depth and is formed in each narrow side adjacent to the top of the weight with an open-ended recess whereby to provide lugs on each side of the weight adapted for penetration by th lower ends of the weighting hooks.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US486148A 1942-04-24 1943-05-08 Weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibers Expired - Lifetime US2339513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5525/42A GB554403A (en) 1942-04-24 1942-04-24 Improvements in and relating to weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibres

Publications (1)

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US2339513A true US2339513A (en) 1944-01-18

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US486148A Expired - Lifetime US2339513A (en) 1942-04-24 1943-05-08 Weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibers

Country Status (4)

Country Link
US (1) US2339513A (en, 2012)
BE (1) BE463113A (en, 2012)
FR (1) FR941192A (en, 2012)
GB (1) GB554403A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558706A (en) * 1945-01-04 1951-06-26 Terrell Mach Co Combing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558706A (en) * 1945-01-04 1951-06-26 Terrell Mach Co Combing machine

Also Published As

Publication number Publication date
FR941192A (en, 2012)
GB554403A (en) 1943-07-01
BE463113A (en, 2012)

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