US2189368A - Roller weight arrangement for - Google Patents

Description

Feb. 6, 1940.

J. PILLING 2,189,368 ROLLER WEIGHT ARRANGEMENT FOR DRAWING AND SPINNING FRAMES Filed June 29, 1938 3 Sheets-Sheet 1 Fig. I.

- Irv/@146;- John Pilfimb deceased, I e by Ada g l min t l? rix Feb. 6, 1940. J: PILLING 2,139,368

ROLLER WEIGHT ARRANGEMENT FOR DRAWING AND SPINNING FRAMES Filed June 29, 19:58 5 Sheets-Sheet 2 j'rnfev wj John 'Pflfigg, ilecasyal, igisi #22121:

J. FILLING Feb. 6, .1940.

ROLLER WEIGHT ARRANGEMENT FOR DRAWING AND SPINNING FRAMES Filed June 29, 1938 s Sheets-Sheet 3 John 125 33%, a ltecagif d by 1 Aola Patented Feb. 6, 1940 t I f 7-1emerge-rues PATENT OFF-ICE ROLLER WEIGHT ARRANGEMENT Fon DRAWING AND SPINNING FRAMES John Pilling, deceased, late of Accrington, England, by Ada Gertrude Pilling, administratrix, Dartford, England, assignor to Howard and Bullough, Limited, Lancashire, England, a British company I ApplicationJune 29, 1938, Serial No. 21 ,634

In Great Britain July'fi, 1937 4 Claims; (01. '19 -135) The invention has reference to the roller rollers thereof, theparts being illustrated in the 'weighting arrangements in the drafting appara- Weight-applied position. Fig. 2 is-a fragmentus'of machines for the preparation and spinning tary'view ofthe relevant. parts of the arrange- 'of' cotton and other textile fibres, such arrangement shown in E gh f; the position of the ments being" of the kind comprising a saddle mechanism when the weighting has been released. 5 spanning two or more adjacent-rollers and a cam- Fig. 3 is apers'pective detail view of the saddle and-lever device mountedupon said saddle and il ustrated in F g 1 a d 2- s a e a l operatively associated with a weight-connection view illustrating the manner of suspension or or link depending between two of such rollers. the weight from thefwe e v d The principal object'of the invention is to proat rig t an es to Figs. 1 and 2. FigJ5'isa-simiIar 10 vide an improved form of weighting mechanism view to 2, i ra the ppli n f the of the aforesaid type which will be particularly invention to the w ightin f. th e ad a n 0 1- suited for use in connection with machines where 'S by t e a e mechanism. thespace available between the rollers for the Figs- 1 a d 2 t e t Qpai S of rollers are accommodation of theweight-connection is ineep e v y indicated at AI d The 15 sufficient to enable the useof certain known two t p r ller A and'B pp a e mm' add mechanisms in which the Weightconnectionpar 6 p s ly a means fhalf-hearing takes of a considerable ffirea.nd-aft movement, by wh h it s a s up n t e roller s wn 1. e., towards or away from the rollers, during in Fig- 3 the saddle s prcvid d'w hia u pthe operations of applying and releasing the k Portion Whiehis slotted ud nal yat I 20 weighting to or from the pressure saddle. teform tWQ P r lle Cheeks 3 between Which is 'A further object of the invention is "to provide c te a l l 9 v ng'a cam-like toe m adapted an improved roller weightingmechanism'which toco-act' with the groove at thebottom of the may beadapted for use in conjunction with the ot e W dth ofsuCh 51013. b g just S fi e .25 weight-connections and weights of existing mato afie 'd'ire dem of movement to the lever, 9 and chines, thus'minimizing the number of parts re,- Cam 0 betweenthe positions of the latter requiring replacement when such machines are sp t ve y l ustrated in Fi s. land converted to conform to the present invention. Cheeks the Saddle-ere additionally The use of weighting mechanism constructed l d ve c ll at H, in such manner as to in the manner hereinafter described is additionalo a positive guide for the -moVeme1'it of. a 30 1y advantageous owing to the very small amount transverse pin or stud l fi ed i t e heel of the ofefl'o'rt required from the operative when aplever e-when the lat is o ra between the plying or releasing the Weighting. aforesaid extreme positions in the slot 1'. ,The

In a weighting mechanism of the type referred Pi 1 Stud is xt dedat e the end sufiifleritto, in accordance with the invention, the manner 3 to form P Y t 'b h'e e p on O 35 of operation of the weight-connection by'the a link or weight-connection 1.3; which latter cam-and-lev'er device and the manner of suspen-' depends between the pairs of rollers. 1 sion' of the weight from said 'weight conn'ection The link |3-maybe attached to a weight looseare both associated with positive guiding means 3 d p d ng from a hook I4 at its extremity, in

4 such that the operations of applying and releas which case the movements of such link during 0 I ingthe weighting produce no fore-and-aft movethe operations of the lever 9 are solely vertical merit of the Weight-connection. and are junafiected by its connection with the The catn-and-lever device may be so arranged weight. In some cases, however, the arrangethat in operation between the weight-applied ment illustrated in the accompanying drawings and weight-released positions it. passes over a is preferred, in which the hook M of the link [3 dead centre and thus provides positive means for engages the'upper loop of a weight-hook l5, locating the 'parts against inadvertant displacewhich is connected to one arm it of a two-armed ment from those positions. lever l6, l1 pivoted at I B (see Fig; 4) upon the The nature of the invention and the manner frame I 9 about an axis at right angles to the 7 o'f'its performance are hereinafter more "fully rollers. The other arm I! of said two-armed 50 described with reference to the accompanying lever isemployed to suspend the weight 20. drawings, in which Fig. '1 is a side view of the The Weight-hook I5 is preferably shouldered drafting head of a speed frame having a weightat [5| in such manner as to be capable of seating -mechanism constructed in accordance with ing, except when otherwise raised, upon the sides the invention applied to the-two rear pairs of of an apertured eye 2|, thus limiting the distance 55 through which the weight 20 need be lifted when the weighting is applied, and also facilitating the disengagement and engagement of the hook l4 of the link l3 from and with the weight-hook 15 when it is desired to remove or re-assemble the saddle 6 and its associated parts.

Fig. 1 depicts the relative positions of the parts of the mechanism when the weighting is applied to the saddle. The lever 9 has been turned rearwardly so that its cam-like toe I0 may co-act with the slot l to raise the pivotal connection 12 in the vertical slot l l this movement operates to draw the weight-connecting link l3 upwardly, raising the weight 20 through-the media of the hook l5 and the lever l6, 11.

To release the saddle 6 from the pressure of the weight, the lever 9 is turned forwardly to the position shown in Fig. 2 so that as: its cam-like toe l0 slides out of contact with the slot 1 the pivotal connection [2 may sink in the slot H-and lower the weight 20 until it is supported against further downward movement by the impingement of the shoulder l5l of the weight-hook IS with its seating 2|. The continued movement of the lever 9 after this point has been reached has the effect of disengaging the hook M of the link l3 from the weight-hook I5, whereafter the saddle 6 and the parts supported thereby may be removed from the rollers, the link l3 being drawn upwardly between the latter.

In Fig. 5 the application of the invention to a weighting system for three adjacent pairs of rollers C, Cl; D, DI and E, El is illustrated. In this case the saddle is articulated, being formed of two complementary portions 2| and 22, the former of which bears solely upon the front roller C, whilst the latter rests upon the two rear rollers D and E, having a half-bearing whereby it is positively located in respect to the roller E. The two portions of the saddle arepivotally connested in known manner at .23 so as to be adjustable for use in conjunction with a wide range of roller settings. The pressure of the weight is transmitted by the link l3 to a lever 9, of which the cam-like toe l0 co-acts with a groove formed by a slot formed longitudinally in the portion 22 of the saddle, so that the weighting is applied simultaneously to all three pairs of rollers.

It is preferred to make the link l3 from a length of spring steel or other flexible material which, by reason of its inherentresilience, will constitute a shock-absorbing or cushioning connection between the weight and the saddle.

It will be seen that the manner of operation of the weight-connecting link l3 and the manner in which such link is connected to the weight are both so devised as to preclude any movement of the link in a fore-and-aft direction, i. e., towards or away from the rollers between which it is situated, during the operations of applying and releasing the weighting. The disposition and formation of the slot 1 I are such as to impart a purely rectilinear movement'to the link l3 on the operation of the lever 9, whilst any slight lateral movement of the link I3 which may possibly occur as the result of its connection through the weight-hook IS with the lever IE will be in a plane parallel to the axes of the rollers; any movement of the link in this latter direction is, of course, negligible since it is not affected by the spacing of the rollers. By the means described improved weighting mechanism may be utilized in machines where the rollers are so closely spaced together as to render impracticable the use of weighting arrangements in which the weight-connection or link between the saddle and the weight-hook partakes of a swinging or other movement in a fore-and-aft direction.

The lever-and-cam device herein described and illustrated in the accompanying drawings has the additional advantage of positively determining the location of the parts in the weightapplied and weight-released positions of the mechanism, since the pivotal connection l2 betweenthe lever 9 and the link I3 passes over a dead centre in moving between those positions. Itwil1,,however, be understood that alternative means, e. g. spring-pressed catches or the like, may be provided for attaining the same result.

Both the embodiments of the invention which are illustrated in the accompanying drawings and hereinbefore described with reference thereto show drafting apparatus in which an inclined roller-stand is used, but it will be evident that the invention is equally applicable to a drafting or drawing apparatus in which the line of travel of the material being drafted or drawn lies in a horizontal plane, as in the drawing frame or the slubbing frame. In such cases, the requisite rectilinear movement of the weightconnecting link will be achieved by the use of a saddle with a guiding slot II disposed vertically, and the weight may be suspended directly beneath the same in the usual manner of such frames. Where, however, the roller-stand is inclined, as in a speed frame or a ring spinning frame, the guiding slot H of the saddle may be either vertical, as in the arrangements hereinbefore referred to, or it may be so inclined in relation to the saddle as to impart to the weighting-connecting link a rectilinear movement along a line at right angles to the line of travel of the roving or the like being drafted, so that such link may pass equidistantly between the upper rollers and between the lower rollers.

What is claimed as the invention and is desired to secure by Letters Patent is:

1. In apparatus for applying pressure to the upper rollers of drawing and spinning frames. a saddle spanning at least two adjacent rollers, a lever having a cam-like portion mounted for movement in a longitudinal slot in the saddle, a pivot pin carried by the lever, said saddle having a transverse slot providing a guide for the pin when the lever is turned about the pivot pin, a weight supporting link secured to said pin, and said transverse slot-being so disposed as to impart rectilinear movement to the weight-supporting link during pivoting of the lever.

2. In apparatus for applying pressure to the upper rollers of drawing and spinning frames, a saddle spanning at least two rollers, a weight supportinglink depending from said saddle between two adjacent rollers, a lever .movably mounted on the saddle for moving the link upwardly so that the weight may be applied to the link to apply downward pressure to the upper rollers, said saddle having a transverse slot, and a pin carried by said lever engaging said slot for positively guiding the upper end of the link in a rectilinear path during movement of the lever.

3. In apparatus for applying pressure to the upper rollers of drawing and spinning frames, a saddle spanning at least two rollers, a link depending from said saddle between two adjacent rollers, a lever pivotally mounted below the rollers to swing in a plane substantially parallel to the axis of the rollers, a mass supported by said lever, means adapted to be engaged by the lower end of said link for suspending the weight of said mass, another lever pivotally mounted on the saddle for moving thelink upwardly so that the lower end thereof will engage said means and apply the weight of the mass to the saddle,

and means associated with the saddle for positively guiding the upper end of the link in a rectilinear path during movement of the second mentioned lever.

4. In apparatus for applying pressure to the upper rollers of drawing and spinning frames, a saddle spanning at least two rollers, a link depending from said saddle between two adjacent rollers, a lever pivotally mounted below the rollers to swing in a plane substantially parallel to the axes of the rollers, a mass supported by said lever, means adapted to be engaged by the lower end of said link for suspending the weight of said mass, another lever pivotally mounted on the saddle for moving the link upwardly so that the lower end thereof will engage said means and apply the weight of the mass to the saddle, said saddle having a slot therein, a pin carried by the second'mentioned lever engaging said slot so as to guide the upper end 'of the link in a rectilinear path during the pivoting movement of the second mentioned lever.

ADA GER'I'RUDE PILLING. Administratria: of the Estate of John. Filling,

Deceased.

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