US1186640A - Stripper device. - Google Patents

Description

T'. J. YATES.

STRIPPER DEVICE. APPLICATION F.I LED OCT. 19. 1915.

1,1 86 6M, Patented June 13, 1916.

lnvenIor. Thomas J Yates,

Al'tysy aaeeao. I

I THOMAS J. YATES, OF SALEM MASSACHUSETTS, ASSIGNOR TO YATES MACHINE COMPANY, OF SALEM, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

STRIPPER DEVICE.

Specification of Letters Patent. Patented June 13, 11916.,

Application filed October 19, 1915. Serial No. 56,771.

To all whom it may mm:

Be it known that I, THOMAS J. YATES, 'a citizen of the United 'States, residing at I Salem, county of Essex, State of Massachusetts, have invented an Improvement in Stripper Devices, of which the following description," in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in apron to pass the articles over the heated for their replacement. six operatives. are employed 1n connection surfaces. .In these niachines difficulty is encountered in efiiciently preventing the articles, passed between the rolls and the concavedsurface, from following the surface of the roll in its revolution instead of passing onward in the desired proper course over the ironing chest. At present a plurality of strings orcords, each transversely embracing the whole series of rolls, is em-.

ployed to overcome this disadvantage. These cords rapidly deteriorate and break, entailing a stoppage of the whole machine with each set of rolls, the loss entailed by this disadvantage alone is considerable. Further, disfiguring creases caused by'these cords are left in the finished work. Heretofore, 'it has been attempted to overcome these disadvantages by employing a rigid metallic plate extending longitudinally each roll, the edge of the plate being in contact with the cloth covering of the roll adjacent the junction of the roll and the heated sur- As approximately face. This type has generally been discarded as defects develop in that the articles being ironed wouldcatch at difi'erent points on this metal dofiing plate with the result that the articles would become jammed between the plate and the roll. And these plates similarly and more quickly wore out the cloth covering of the roll. through frictional contact therewith.

Another form of ironing machine in com- 1ts flexibility or pivotal mounting, out of operation and will still permit the adjacent stripper fingers properly to function and thus prevent the article either from becoming caught and torn or from following the roll.

An object of this invention, therefore, is to provide an eflicient stripping means for the rolls of ironing and similar machines.

Another object is to provide a plurality of longitudinally flexible independent pivotally mounted strippers for the roll of an ironing machine.

Other objects of the invention will more fully appear fromthe following description and the accompanying drawings and will be pointed out in the annexed claims.

In the drawings, Figure 1 is a longitudi nal sectional view of a portion of an ironing machine of the flat or horizontal type; Fig. 2 is a cross section of one of the rolls show ing a stripper finger and its mounting; Fig. 3, is a front elevation showing two of the stripper fingers and an angle iron support finger is adapted normally to be positioned in light contact substantially tangentially to stripper finger;- Fig. '5 is anunde'rside View suitably journaledfa series of revolubly acof the construction-shown in jFig. 4, the

stripper finger being isho'wn'in dotted line; I Y

' Lgto the angle, iron bar 12. The ear is apertured to receive a, pivot pin, the end por- Fig. 6 is a diagrammatieg view showing the stripper 3fiPP i oan upright machine.

The ironingmachine, to which this selected 'embodiment' of the invention'is shown as applied, is of thepsual type and consists of a heated ironing chest 1 above Wl'llCh' 1s tuated rolls 2. The upperor. ironing surface of the.. chest;-'has a plurality of arcuate or concaved ;su;rfaces '.3, which correspond substantially .to the contour of a portionof the adjacent-roll surface. Each roll has a suitable cloth covering 4. An endless apron 5 runs around the rolls 6 and 7.'

The flat work is fed to the is carried to the front roll at the right in Fig. 1 and. is pressed thereby against the corresponding concaved' surface 3 of the taining member or holder 9 therefor. The. j 30 blades may be formed of any suitable ma terial but are preferably composed. of resil ient blue tempered ribbon steel, having a normal arcuate form to correspond substantially to the curvature of an arc of the roll surface. The, lower or freeend 10 of each the perlpheral cloth covering 4; of the respective roll therebelow. The upper end 11 of each blade, in the preferred construction, is attached to the holder 9. Each holder of a. roll series is retained by a supporting bar 12 which extends transversely the ironing machine. These bars 12 are disposed, in this embodiment, one above each of the rolls 2, each being substantially adjacent the vertical plane through the axis of the roll and I extending across the machine frame usually paralleling the corresponding roll. These bars 12 are illustrated as angle irons and may be secured attheir respective endsto the usual-frame sides of the machine in any suitable manner not herein necessary to be shown.

terial but are relatively inexpensively prothe desired form. In are shown as having has flanges 13 on its downwardly presented face. The upper blade end 11 is-sec'ured to this face by a rivet 14 and relative lateral or rotatory movement between the holder and finger prevented by I I apron5 from asuitablev feed table, not shown, .whence it I t surfaces by the The holders 9 may be of any suitable mathe flanges 13 which engage the holder between the depending arms 16 of thebracket l7j secured by suitable rivets 18 tions of which are held by the btracket.

arms 16.

As he'stri' steel blade is. of Such light 1 weight that a very slight tension will throw the finger away from the cloth covered roll' 2, it has, been found desirable to provide a means assuring a light yet readily yield'able contact. A downward pressurerupon the upper end portion of thefinger effectually achievesthis result'ari d a simple means of its attainment is to form the holderwith" an enlarged integral portion constitutinga weight 19 which preferably is formed to extend over the finger and functions to as-' sure a yieldable contact. This Weight being adjacent the pivotal-line of the finger*,j5 does not greatly hinder the throwing out of the'finger when it functions improperly. y ;The operation of this structure is eiliciently simple. Taking for example small articles such as fed to the endless apron 5 with a plurality of articles abreast, and, passing between the 'front roll 2 and its opposed concaved portion of the steam chest, the tendency of napkins or towels, they are the articles in. their moist condition is to follow-around or to adhere to the roll 2. Several of the roll-contacting lower ends, 10 of the stripper fingers, which arerelatively' numerous and spaced close together on this front roll, engage each of the articles andstrip them from the roll. Should a portion of an article catchone of the fingers, the remainingfingers engaging the same article would effectually strip the article from the roll. The obstructed finger, readily yielding'throughits flexibility and through its pivoted weighted. holder, would be swung away from the roll and article and become readily releasedto be returned immediately to normal shape and position of roll contact by the resiliency of the finger material and by gravitative force through the weight 19. The towels or other fiat work are then carried onwardly "and held in contact with the successive ironing revoluble rolls 2. As the towels or other flat work near the rear of the machine, they become more nearly dry anlcll tend the less to adhere to the successive re s.

Thefiat work articles at the beginning of the ironing operation are relatively moist and have greater tendency to stick to the have to the rolls with which they laterconacting tact in this drying and ironing process":

cloth cover 4 of the front roll than they I Therefore, relatively fewer stripper fingers .are required at the rear rolls than at the ones near the front or feed end of the ironing machine. Hence, from the rear to the front of the machine the numberof stripper fingers per roll preferably is progressively increased and it results thatthe space between the adjacent stripper fingers on each roll is correspondingly decreased and the. stripping, function thus augmented at the front or feed end.

The fiat work at the extreme rear end after being stripped fromthe rearmost roll is further dried and folded or treated in the usual manner.

An, adaptation of this selected embodiment of the invention to the ordinary so called upright machine is shown diagramrfiatically in Fig. 6. Therein, is shown the usual revolubly actuated heated drums 20 and 21, a feed table'22, a plurality of'drumcontacting rolls, which function to hold the flat work received from the feed table in contact with the revoluble heateddrum whereby the work is passe'd aroun'd the'up- I per portion of the drum periphery whence the work passes to the downwardly moving adjacent portions of the endless apron 23 which carries the work to the lower heated drum and thenceguided around the drum 21 by a second similar apron 24 to the folding table 25. Stripper fingers embodying this invention are provided for the upper drum-contacting rolls. However, in the case of rolls located as are the rolls 26 and 27 where the lower end of the stripping finger must assume a roll-contacting position at or beyond the vertical plane of the drum axis, it is obvious that the weight 19 must assume a position well beyond the pivot of the finger holder and at such angle to the arc of the finger that the resultant effective force will be exerted to'hold the lower finger ends in the requisite light and yielding drum contact. This is effected simply by elongating the body 9 of the holder and making it of suflicient weight to at the roll surface.

There is thus provided an inexpensive, simple highly efficient stripping means which may be fitted to the present types of ironing, calendering and like machines with few and easily effected structural changes in the machines. The use of strings or cords is eliminated, and delays entailed by stopping the machine are practically negligible. And with this type of stripper, damage to fine fabrics, fringes, embroiderings andborgive the desired pressure ders is minimized as the flexible nature of r the stripping fingers admits of maximum yieldability.

In both types of machine the rolls are padded and covered with cloth, and this covering wears or becomes torn so that it is otherwise occasionally necessary to recover or repair one or more of the rolls. The stripping mechanism of this-invention eliminating the use of strings or cords running around a plurali ty of the rolls, and being itself a unitary structure with respectto each roll enables a single roll to be repaired or recovered.

without disturbing th'other rolls.

It is to be understood that the construction disclosed herein is illustrative but not restrictive and that various modifications .may be made within the scope andmeaning of the claims which follow.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A. stripper for ironing rolls comprising a finger and a support therefor positioned above the roll,said finger having its upper end secured to said support and its lower end in yieldable contact with the roll to and the finger upon improper functioning j I maybe thrown out of working position.

3. A stripper for ironing rolls comprising a'h arcuate nger whose lower end normally rests against a roll, said finger being resilient throughout its length, and a weight having means for securing the up'- i I per end of the finger thereto and having an extension adaptedto be pivotally mounted above an adjacent roll whereby the finger is pivotally supported without impairment of its resiliency and the lower end thereof is held in yieldable weighted contact with said roll. i

4. Stripping means for ironing rolls comprising a plurality of independent fingers, each being resilient throughout its length, a supportfor. said fingers whereby the lower ends thereof normally rest against an adjacent roll, independent means for pivotally mounting each of said fingers on said sup. port whereby upon improper functioning of any finger it may be thrown out of work.-

ing position without affecting the function of the others.

5. Stripping means for ironing rolls comprising a plurality of independent fingers,

each being resilient through its length, a support forsaid fingers whereby the lower ends thereofnormally rest against an adj acent roll, a plurality of weights indem ently andpivotally mounted on said suppo'rt, and means for securing'the respective upper ends of said fingers-each to one of said \yeights whereby each finger is pivotally and independently supported Without impairment of resiliency and ,held in yield-; able contact at its lower end. with the roll 2 THOMAS J. YATES. v

have signed my

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