US1391185A - Self-adjusting tension means - Google Patents

Description

W. F. GRUPE.

SELF ADJUSTING TENSION MEANS.

' APPLICATION FILED MAY 31, I9I9. 1,391,185,

' PatentedSept. 20,1921.

1 IIIIII INVENTIOR BY. w? MW V I ATTORNEY W LIAM E.

BELT; CORPORATION,'INC., A; coREoEATioN or NEW YORK. j

sEE A JUs'rInG TENSION-MEANS? To all whomitmay concernii t I -Beit known that I, WILLIAM F. GRUP a citizen of the United States of America,

. residing at -Hudson Heights, .county Qf .r ic and serves to feed the cigarette making Bergen, State of New Jersey, have invented certain new. and useful Improvements in Self-Adjusting Tension Means, of which,

I'GSPOIlCllIlg Weight to provide auniversal the following is a specification. This jnvention relates to self-ad u st1ng tension means. a

' In the, use of certain .types oflbelts, par

ticularlybeltssubjected to curved or angular deformationjsuch as belts for cigarette making'machinesit is desirable to attain a predeterminedjtensionin the belt and attempts have been heretofore made for attaining such result,"but sucll heretofore proposed arrangements have been ineffectual.

' Such heretofore proposed'arrangements are also defective by reason of the absence of the capability of1adjusting the tension from time to time, inaccordance withthe ,ClGSlIGCl.

requirements inthe operation of the belt.

In the use of feedingbelts for cigarette making machines, thejbeltfis of woven fabmaterials through'a so-called forming shoe whereby the inclosing paper a drh im; vclosed cigarette tobacco vare forcedby the;

shoe to 'be curved .into Cylindrical. shape,

causing the edges of thepaper to overlap,

atwhich statejadhesive is applied and the overlapping edges .secured to one, another to form a resultant cigarette of ndefinlte length ,.which at a subsequent stage is cut intodesired lengths, the ordinary individu-- al cigarettes 'During the stage of curved formation of the cigarette materials, the belt is deformed as stated above, and ata later stage assumes its normal 'uniplanar position..

' V I have discovered, that, order to effect proper feeding of the paper strip and the cigarette tobacco conveyed 0n the paper strip, it is desirable to maintain a certain g tension in the belt, effective particularly for the portion of travel of the belt between the.

points of initial and final engagement of th'e'belt with the paper strip. 1

.In carrying out my invention, I provide an idler carried by a suitable movable support and means controlled by a regulatable weight for controlling the position of such idler whereby to regulate the tension of the belt, the feedingof the paper strip and Specification-of Letters latent. Pat t d 2 A application filed ma 31,

1919,. Serial No. 300,951.

cigarette tobacco and "the formation of the resultant cigarettes. Such provision of means operate to' automatically maintain ing elongation or other variationof the belt incidentt'ouse. The tension is adjustable simply byjadpisting or. by replacing a corself adjusting tension" means; for varying;

- types of fabric belts and varying types of shoes or' formers.

GRUPE, 0E HUDSON" HEIGHTS, NEW JERSEY, AssIGNoE'ro ENDLESS if such predetermined pressure notwithstand- Further features andobjects of' th es ini venti on will be. more fully v understood by the following description and-accompanying draWiI gS,i nhicl1i 1 Figure. 1 is a perspective view of one embodiment of'm'y tension means in combination with ,a cigarette making machine, the partsof'such cigarette making machine be ing indicated diagrammatically;

F'g. 2 is a detail end elevation as viewed frornline 22 of Fig. 1, in the direction of the indicated arrow; and

Fig. '3 is a side elevationof the .tension 7 1 means. i e I -Referring to-Figs. 1,2 and feeding beltisindicated at 1 and, as shown,- thepath oftravelof the beltl-uis about the driving wheel 2, -thence overthe fixed, idler" 3, thence through -my tension adjusting means, indicated generally at 4, thence over the guiding means 5, at which location-6 the .belt .1. r nakes initial contact with the paper.

3, the cigarette Strip7, onto whichis fedj by suitable feeding means the cigarette tobacco indicated at 8.. The forming shoev is'indicated at9, through which the belt 1 traVeIsand is. forced by the curvedv sides of the shoe to be curved, to. thereby cause-the paper strip and the cigarette tobacco 8* therein to be rolled and upon application of suitable adhesive the resultant cigarette of indefinite length 10 is formed The guide means 5 is preferably an anti-friction roller.'

The course of travel of the belt through the aforesaid regions of travel is indicated by the arrows 11. 2

Such tension means comprises the relatively fixed idler 12 rotatably mounted on the stud 13 carried by the side of'the cigarette making machine 14:. The tension adjusting idler 15, is preferably disposed between the idler 3 and the idler 12. Such idler 15 is mounted on the stud 16, tapped, into the plate 17. The plate 17 is a segment 1 hung on the-stud13. Behindthe plate 1 7 "is provided the, plate 18,. which may also be hung on the stud 13, and positionedby means of the stud 19. The Stud 19 is pro vided with the exterior head 20. and

the guiding collar 21. Thesegment 17 isprovidedwith the arou- -atejslot-22' through which projects the stud to the opinion 24 is the-sheave '25, and'the" '19. The collar 21 serves as a guide for the edges of the arouate'i slot 22. The sector 17 is provided with the teeth 23- at its arcuate edge, meshing with the pinion 24. 'Fixed pinion 24 and sheave 25 are loosely mounted on the stud 26, having the external head 27 and retaining collar 28. The stud 26 is tapped in the plate 18'or in the side of the tached end 29 of the cord or-wire 30,0n

body of .the cigarette machine-14,'or other suitable'support. Y 1 Q To'thesheave- 25 is suitably fixed the atwhich freely hangs aj replaceable,weightBl, -'or equivalent. a p

The center of the sector 17 iscoincident with the axis of the stud 13 on which the sec-*' apparent from the above description and it will be notedthat the weight 31"exerts1-an' effective leverage on the idler 15 by the'relative movement between the pinion'24 and th'e'secto'r 17, on which latter ythe'idler' 15 is carried. Theeffective leverage isa definite" multiple of the replaceable weight, or equivalent, for all positions'ofthe idler 1'5" relative to the path of travelfof the belt; Upon variation in the length of the belt the degree of friction between the belts and sides of the forming shoe, the belt is-notwithstanding maintained at thedesiredtem sion, the idler 15 oscillating about the'center of oscillation of the 's'egmen't17', such oscillation of the segment "17 oscillating the pinion 24 and sheave 25, with resultant'rise or fall of the weight 31, or equivalent means.

It will be noted that such arrangement' in fori'ne theappended claims.

sures uniform tension in the belt andjis effective at all times, whereas, heretofore "proposed arrangements irequired manual adjustment upon varied conditions of operation of the beltand associated parts, This advantage is a distinct advance, when the high rate of travel of the feeding belt gand. the highoutput ina number of cigarettes forming machine is by each cigarette borne in mind.

.Whereas Iv have "desoribed'm'y invention by i I reference to specifie forms'thereof, it will be understood that many changes and modi: 'fic'ationsmay be made "without departing from the spiritfof the invention defined 1. The combination of a belt, of means fo'i exerting a predetermined pressureon' said; belt, comprising an idler, a segment, means for mounting saididler on said segment and said segmenti 2. The combination with abeltylofmeans for maintaining a determined pressure on said belt,icomprism an idler, a segment, Y

1 means foii'exerting a constant pressure on :7 I

means mounting sai idler inf'fixed relation 7 to said segment, a pinion, means for mounting said pinion on a fixed" support, "a sheave, 1 means forconnecting'said sheave in fixed re la'tion with said pinion,iand*means for ex ertin'g a predetermined constant force on;

said sheave.

"'3. The combinat-ion withia belt', of an'idler adapted tdengage said belt, a. segment,

means for mounting said idler on said segment, a pinion, a fixed stud movably sup-* porting said pinion, 'a-sheave in fixed rela-l" "tion with said opinion, a yieldableelement: passing about said sheave and a replaceable weight conneeted-to said yieldable element."

4. The combination with a belt, ot anf yidler, a segment mounted concentrically with said idler, a second idler, means for mountsaid. segment, 'a pinion and means forexert; ing a constant pressure on said pinion.

specification this 26th day of May 1919.

. 5 ing saidsecond idler in fixed relation. with" In testimony whereof I have. signed this i I 5 ,W ILLIAM F. GRUPE. v

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