US2000070A

US2000070A - Card roller mounting machine

Info

Publication number: US2000070A
Application number: US754269A
Authority: US
Inventors: Edward S Flynn
Original assignee: Davis and Furber Machine Co
Current assignee: Davis and Furber Machine Co
Priority date: 1934-11-22
Filing date: 1934-11-22
Publication date: 1935-05-07
Anticipated expiration: 1952-05-07

Description

May 7, 1935.

E. S. FLYNN CARD ROLLER MOUNTING MACHINE F iled Nov. 22, 1954 2 Sheets-Sheet 1 lnvenTor.

Edward Smynn ATTys.

y 1935. E. s. FLYNN I CARD ROLLER MOUNTING MACHINE 'Filed Nov. 22, 1934 2 Sheets-Sheet 2 I \nven Tor.

Edward S. Flynn b WWQW ATTys Patented May 7, 1935 UNITED STATES. PATENT OFFICE,

CARD ROLLER MOUNTING MACHINE Edward S-. Flynn, Lowell, Mass., assignor to Davis & Furbcr Machine Company, North Andover, Mass. a corporation of Massachusetts Application November 22, 1934,. Serial No.."75 4,269. 5 Claims.l (Cl. 140-99).

Thisinvention relatestoa machine for applydegree. of tension as it is being applied to the ing fillet material under tensionto a driven roll drumv r AS already Pointed Out, this telld, Whi e useful for a variety of pur os nd sion-must be maintained uniform and the degree for handling a. variety of fillet materi l, is parof tension must depend upon the particular re- 5 ticula-rly designed for ap lyin a fill t of d quirements. In covering the drum and rollsof 5 clothing: toa cylinder such as admin or rollemcarding machines the desired tension maintained P y d in a carding machine. is on the: order of from one hundred to. six hun- The. object of the invention is to provide such dred po e a. machine in which th'e'filiet material; while While various machines may be employed for being wound on to the drum or roll, shall be au winding or mounting such fillet material upon 10 tomatically? maintained: under a predetermined the cylinder such asthe drum or roll of a carding and uniform; tension, machine, a well-known type of machine such as In the case of card clothing, the desired; tena S w in e DrOnSfield Patent above sion is usually dependent upon the idth f: th ferred to'is here. illustrated. Thismachine com- 1 fillet-oi card clothing, the diameter of the cylinp s s a as 3 m unt d t mov t ansvers ly l5 der upon which it is being wound and the charalong a bed: 4. This bed may be mounted indeaster of the. card' clothing itself. In the case of p de t o a s tab e pp or may be a fillet of card clothing, the desired tension m u t d d t y up n the frame of t d ne which should be maintained is usually o the or other machine. Usually the base is fed at the co order of between one hundred and six hundred qu r d rat tr nsv rs y r l n ud a ly of pounds. the roll to be covered, as, for example, by the I The nature and objects of the inventionwi11 cooperative action of the screw 5 and worm wheel appear more fully from the accompanying de- E with the worm wheel E being locked against roscription and drawings and will beparti'cularly tati n dur g t t av movement and S0 pointed out in the accompanying description and acting as a. nut. Vertical side plates 1 and 8 25. claims. extend; upward fromthe base 3 and there is jour- The' preferred formv f'the invention is sho n nalled in these. side plates the shaft 9 of a cone embodied in a well-known form of machine for drum divided into. three sections, I0, II and I2, winding a fillet of card clothing upon a cylinder, of successively increased d m such, for exam le, s th t h n i th patent, 1 .The. fillet material passes first over and around 301 to Dronsfield'; No. 548,632; October 29 1895. the drum section Ill, thence over and around the In the drawings: 7 drum section it and thence over and around the Fig. l is a view in perspective of the mounting drum section 1.2. A curved plate (not shown in machine with the preferred form of the present the drawings) at the front of the machine shunts invention embodied therein-.- the fillet from one section to the other. The third 35.;

Fig. 2 is a detail in top plan View illustrating cone section I2- is usually covered with leather. the lever connection between the controller and From the bottom of the third cone section I2 the the 'sh-i-ftabl'e cam or wedge-shaped plate. fillet then passes up over the top of a controller Fig. 3 is. anend view of the construction shown l3 in the form of a lever fulcrumed at M on the 40 in Fig. 2-. V v base 3-. From the controller the fillet passes 40 Fig. 4' is a side elevation of the machine shown forward to the roll upon which the fillet is to be in Fig. 1. wound and'this roll is positively driven or rotated The fillet material illustrated is a fillet of card by hand or otherwise. clothing of a familiar type comprising a backing It will thus be seen that as the fillet I is pulled strip l of suitable material such as leather or forward by the roll upon which it is being 45 fabric and a series of wire teeth 2 inserted mounted, it acts to rotate the cone drum, but as through the backing and projecting at the face the cone section I2 is larger in diameter than the thereof with the surface ends of the teeth unipreceding cone sections, slippage must take place form-1y inclined in the same direction. between the fillet and the preceding cone sections Such a fillet of card clothing is wound upon and this slippage produces the main tension in 50.

the drum and various rolls of a carding machine the fillet. and. it is of prime importance that when in place An additional amount of friction'which is adit shall fit snugly and tightly the periphery of justable or under control is provided on the fillet the drum or roll. In order to secure this result before it passes to the cone drum. For that purthe fillet is maintained under a very substantial pose a. small bed plate I5 having the upturned 55 sides is forming a box of substantially the width of the fillet is mounted by means of the bracket I! on the vertical side plate 1. The fillet before passing to the cone drum passes over this bed plate l5 with its backthereagainst. A fiat top plate l8 rests in the box formed by the side plate IS on top of the teeth of the fillet and is pressed downward to apply the required amount of friction.

Heretofore this friction has been manually controlled. In the present invention it is auto-\ matically controlled and for that purpose a shiftable cam preferably in the form of a wedge-shaped plate 19 is mounted on top of the top plate l8. This wedge-shaped plate is thicker at the front of the machine and thinner at the rear. Its top surfaces rests against an abutment shown as a set screw 20 threaded into an arm 2| 'mounted upon one of the sides I 6. It will thusbe seen that as the wedge-shaped plate or shiftable' cam I9 is moved forward or rearward, the pressure applied to the fillet and consequently the retarding friction will be decreased or increased while the set screw 20 enables a manual adjustment to be made.

The pivotal controller l3 at its upper end is recessed to provide a guideway for the fillet and it is also provided with a guide roller 22 over which the fillet passes. The lower arm of this controller extends rearward and is connected by powerful springs 23 to the upper end of the side plate 8.

When the roll upon which the fillet isbeing wound is driven, the upper recessed end of the controller is drawn rearward by the tension on the fillet and the springs 23 press the controller against the fillet with a pressure just sufficient to be overcome by the desired tension on the fillet. In order toindicate the desired tension, a scale 24 is marked on the upper edge of theside plate 8 and a pointer 25 cooperating with this scaleis pivoted at 26 on the side plate. A slotted arm 21 extending rearward from the pointer engages a stud 28 projecting from the lower arm of the controller lever through a slot 29 in the side plate. Consequently this pointer: will indicate on the scale the amount of pressure exerted by the springs 23 through the controller against the fillet and this scale is usually graduated to indicate in pounds the tension existing in the fillet as it is drawn through the machine over the controller against the retarding friction.

In the present invention means are provided connecting the controller and the retarding friction applying means, which connecting means act upon movement of the controller caused by a change from the desired tension to effect a compensating change in the retarding friction and thereby to restore the desired tension. A simple and preferred form of means is illustrated in Figs. 2 and 3 and consists of a lever 30 fulcrumed at 3! on'a bracket 32 projectingfrom the side 18. ..t one end this lever is slotted and engages a stud projecting from the shiftable cam or wedge-shaped plate I9, while at the other end it is provided with spaced pins 34 between which projects a stud 35 projecting inward from the controller l3. Consequently any movement of the controller forward or rearward acts to shift the wedge-shaped plate l9 rearward'or forward and thus to increase or decrease the retarding friction applied to the fillet.

If, then, the roll upon which the fillet is being wound is driven with the end of the fillet connected thereto, and it is desired to maintain a tension of a desired amount indicated, for example, by the point 35 on the scale 24, the screw 20 is adjusted until the retarding friction applied to the fillet between the plates is and i5, together with the retarding friction applied by the cone drum, is such that the pointer stands at this point 36 on the scale. If, now, any change takes place in the desired tension, the controller will swing one way or the other on its pivot but immediately this swinging movement takes place in either direction the connection from the controller tothe cam I 9 acts to shift the cam in a direction to effect a compensating change in the retarding friction and thus bring the pointer back to the point 36 and thus restore the desired tension.

The invention thus acts automatically to maintain constant any desired uniform tension in the fillet.

Not only does the invention compensate for any changes which take place in the pull exerted by the rotation of the driven roll towhich the fillet is .being applied, but it also compensates for the slight variations which may occur in the overall thickness of the fillet as it passes between the plates I8 and I5 and which, if not compensated for, would change the amount of retarding friction applied to the fillet.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. An apparatus for applying fillet material under tension to a driven roll comprising means for applying a retarding friction to the fillet; a movable controller held yieldingly against the fillet between the driven roll and the retarding friction-applying means by a pressure just sulficient to be overcome by the desired tension on the fillet; and means connecting the controller and the retarding friction-applying means acting, upon movement of the controller caused by. a change from the desired tension, to effect a compensating change in the retarding friction and thereby to re'store the desired tension.

2. An apparatus for applying fillet material under tension to a driven roll comprising means for applying a retarding friction to the fillet including oppositely disposed plates engaging the faces of the fillet and between which the fillet is drawn by the driven roll and means for adjusting the plates relatively to each other to adjust the amount of retarding friction; a movable controller held yieldingly against the fillet between the driven roll and the retarding friction-applying means by a pressure just suflicient to be overcome by the desired tension on the fillet; and means connecting the controller and the means for adjusting the plates relatively to each other acting, upon movement of the controller caused by a change from the desired tension, to operate the means for adjusting the plates to effect a compensating change in the retarding friction and thereby to restore the desired tension.

3. An apparatus for applying fillet material under tension to a driven roll comprising means for applying a retarding friction to the fillet including a bed plate over which one face of the fillet is drawn by the driven roll, an abutment opposite the bed plate, and a shiftable cam between the abutment and the other face of the fillet acting when shifted to change the amount of retarding friction applied to the fillet; a movable controller held yieldingly against the fillet between the driven roll and the retarding friction-applying means by a pressure just sufiicient to be overcome by the desired tension on the fillet;

and means connecting the controller and the shiftable cam acting upon movement of the controller caused by a change from the desired tension to shift the cam in the direction to effect a compensating change in the retarding friction and thereby to restore the desired tension.

4. An apparatus for applying fillet material under tension to a driven roll comprising means for applying a retarding friction to the fillet including a bed plate over which one faceof the fillet is drawn by the driven roll, an abutment opposite the bed plate, and a shiftable cam between the abutment and the otherface of the fillet acting when shifted to change the amount of retarding friction appliedto the fillet; a pivotally mounted controller engaging the fillet between the driven roll and the retarding friction-applying means; a spring connected to the controller and acting to press the controller against fillet with a pressure just sufiicient to be overcome bythe desired tension on the fillet; and alever fulcrumed between and connected at its ends respectively to the controller and the shiftable cam acting upon a pivotal movement of the controller caused by a change from the desired tension to shift the cam in a direction to effect the compensating change in the retarding friction and thereby to restore the desired tension,

5. An apparatus for applying fillet material under tension to a driven roll comprising the construction defined in claim 4, in which the shiftable cam is in the form of a wedge-shaped plate extending and shiftable to and fro in the direc-' tion of the path of movement of the fillet.

EDWARD SLFLYNN.

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