US534148A - Machine for treating tobacco-leaves - Google Patents

Description

2 Sheets-Sheet 1..

('No Model.)

J. W.QFRIES. MACHINE EOE TREATING TOBACCO LEAVES.

No. 534,148. Patented Feb. 12, 1895.

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(No Model.) 2 SheetsSheet 2.

' J. W. FRIES. v

MACHINE FOR TREATING TOBACCO LEAVES. No. 534,148. Patented Feb. 12, 1895.-

l I W a 3 A. 11f L X? M i i? v r rrnn STATES PATENT OF ICE.

JOHN w. FRIES, OF SALEM, NORTH CAROLINA.

MACHIN E FOR TREATINGTOBACCO-LEAVES.

sP'EeIFIoA'rIon forming part of Letters Patent No. 534,148, dated February 12, 1895.

Application filed september 8,18%: Serial No. 622,460. ma as.)

Ta all whom it may concern:

Be it known that 1, JOHN W. FRIES, a citizen of the United States, residing at Salem,in

the county'of Forsyth and State of North features hereinafter set forth and claimed.

. wood covered with a shell of cast iron.

In the drawings which represent the preferred form of my machine,Figure 1 is a vertical central sectional view from front to rear; Fig. 2, a top plan view of the same; Figs. 3, 4 and 5, views illustrating the construction of the journals'of the feed roll; ers; Fig. '6, a plan view of one of the feedwheels and comb; Fig. 7,,a perspective view showing the manner in which the wheels feed the leaf to thefeed-rollers; and Figs; 8 and 9, views of the bearing for the main rollers.

The main frame of the machine comprises two side plates or castings A A of most any desired form, suitably connected and braced. Mounted in suitable bearings in the side plates or frames A is a shaft B which carries at one end a small pinion a, Figs. land 2,

and at the other end a band wheel b,-the

latter being designed to receive a belt or band through which motion or power from a suitable source is communicated to the said shaft. Pinion a, meshes with a larger gear 0 secured upon a shaft D, Figs. 1 and 2, which shaft carries a smooth roller E of cast iron or of Secured to this same shaft D is a gear or pinion c,sh0wn in dotted lines inv Fig. 2,which meshes with two pinions d and e, carried respectively by the shafts of rollers F andiiG which are located above but parallel with the lower roll E.

Rollers F and G will be made of steel, and the roller E of cast iron, thereby giving the rollers F G a harder and smoother surface than that of the roller E.

The shafts'of rollers F and G, are mounted in eccentric sleeves f, and these are held in their proper positions in their seats in the main frame, by means of set screws 9, as shown in Figs. 8 and 9. By turning these sleeves, the rollers F and G may bebrought the gears c, d, and e having sufficient play to permit of the necessary adjustments of the rollers without affecting the operation of the gears.

Upon opposite ends of the shaft of roller E are gears h and 'i, the former meshing with an idlerj which in turn gives motion to a gear 70 on the shaft of the stripping roller H.

:TlllS roller H is located in rear of the roller E, and is preferably grooved longitudinally to more certainly remove the leaf from the roller E and deposit it in the rotary pan or receptacle X, shown in dotted lines in Fig. 1. The shaft of this roller H will be mounted in eccentric. sleeves f, like those employed with the other rollers.

Depending from a suitable cross-bar or support Z is a scraper I which extends down between the rollers F and G, close to the roller E, but set closer to roller G than the roller E, so that the leaf is caused to pass from between the rollers G and E, beneath thescraper, and thence between the rollers F and E.

In order to feed the leaf I employa suitable trough or channel Jof V-shapein cross seccloserto or fartherfrom the lower roll E,- I

tion, terminating at its forward end, where the sides are cut away, ina centrally grooved block m which inclines upwardly as shown in Fig. 1. On each side of the trough J and projecting into the'latter, is a feed wheel K, which may be made of or armed with card clothing, garnet wire, or other suitable material which will take hold of the leaf and feed it forward; the leaf being set into the trough while folded longitudinally through the middle as in Fig. 7. "Each wheel is provided on its outer side with a comb or clearer L which serves to strip or detach the leaf from the teeth of the wheels K, and prevent the latter from spreading the leaf far enough to split or. tear it. outwardly, take hold of the leaf and spread or open it, they cause the end of the leaf to rise, and as the leaf goes forward, the front end rides up the inclined block or end of trough J in position to be taken holdof by the feeding rollers, the inclination of the block m being such as to facilitate the opening of the leaf by the feed wheels, and the proper entrance of the opened leaf between the feed rollers. Where verylarge and wide leaves are used, it will be found advisable to carry the hubs of the wheels K up above the active faces of the wheels, as in Figs. 1 and 2; but where small leaves are being treated, the hubs may be omitted as in Fig. 7. In order to hold the wheels up to work, and at the same time allow them to yield when necessary, the arms or brackets 02 supporting said wheels and their combs, are pivoted to the main frame as shown in Fig. 6, and are held normally against adjustable screws or stops 0 by means of the weight p, which lat ter is suspended by cord or chain q passing over pulleys r and connected to the arms a.

The shafts P of wheels K are stepped at their lower ends upon the main frame, and provided with intermeshing gear Q, as shown in Fig. 1. One of the shafts is provided with a bevel gear R which receives motion from a similar gear S, to which latter is imparted motion by means of band wheels T, U, and belt V.

The feed rollers, which take the leaffrom the trough J and deliver it to the main rollers, comprise four shafts M arranged in pairs, one pair directly above the other, and the shafts of each pair being arranged at an angle to each other, and rounded at their inner ends, and two coiled springs N, each of said springs embracing the two shafts which are in the same horizontal plane. comprise a rigid core or shaft made in two sections, arranged at an angle to each other, and a flexible covering extending from end to end of said cores, as clearly shown in Figs. 1 and 2. The shafts M are each provided with a collar 8 against which the ends of the springs bear with sufficient force to cause the rotation of the springs or flexible coverings with the cores or shafts. By varying the curvature of the abutting ends of the cores or shafts, the form assumed by the flexible covering may be altered, as the springs or covering will adhere closely to the shafts. The shafts are reduced and carried in a cylindrical sleeve 15, Figs. 3, 4; and 5, which latter are mounted in the sleeves a. Sleeves a which are held by screws 1) in suitable seats formed in the main frame, are bored eccentrically at one end ouly,-the inner end, see Fig. 3,-so that when said sleeves are turned to adjust the rollers, the outer ends of the shafts to which the gears are applied will not be appreciably affected. Motion is imparted to the upper-feed roller from the gears h and t on the shaft of roller E, by means of the idlers a: which mesh with said gears h and i, and the gears w on the lower feed roll shafts. The gears w on the ends of the lower roll shafts mesh with similar gears y on the upper roll shafts as shown by dotted lines in Fig.1.

In order to prevent the leaf from rising too high, and out of the bite of the feeding rollers, I employ a guide 0, which extends from The feed rollers thus the web or body of the leaf away from the stem as the leaf is carried forward. After leaving these rollers,theleaf passes between i the rollers Gand'E,*having preferably slightly different peripheralspeedsrwhere, by means of said rollers, the stem is merely flattened or given a preliminary crushin". Being prewanted by scraperI from risingafterleaving the rollers GE, the leaf with thestem,passes between the rollers F and E (which are set closer together than the rollers G and E) where the stem is completely crushed and disintegrated.

Owing to the nature of thestem, it adheres to the cast-iron roller E from which it is removed by means of scraper VV, Fig. 1,- the leaf, having the stem removed, being caught by the stripping roller Hand deposited in the can or vessel X. The stem is thus wholly removed without tearingor injuring the leaf.

It is obvious that instead of nsing the coiled springs N to form the flexible covering of the feed rollers, a rubber tube or equivalent device may be used.

I do not claim herein the combination of two rollers arranged to revolve at diiferent peripheral speeds and formed of materials of different relative superficial hardness, as this broadcombination is embracedin my pending application, Serial No. 506,749, filed April 7, 1894.

What I claim is 1. Incombination withthe rollerlil and the rollers F and G co-acting therewith; the guard Ilocated between the rollers Fand G, and lclose to the roller 13) to form a throat for the eaf.

2. In combination with a cast iron roller E, the harder smooth rollers F andGco-acting therewith, whereby to mash and subsequently disintegrate the stem.

In combination with a trough J having the inclined block m, the feed wheels K projecting into the trough.

4. In combination with a trough J having the inclined block m; the feed wheels K projecting into the trough; and the'combsL for clearing the leaf from thewheels.

5. In combinationwith a trough or channel and the feed wheels at the sides thereof; the shafts for said wheels; the pivoted arms or IIO brackets in which said shafts are mounted; the stops; and the weight connected with the arms.

6. A feed roller comprising two shafts or cores arranged at an angle to each other, and an encircling spring. 7

7. A pair of feed rollers, located one above I the other, and each comprisinga pair of shafts arranged at an angle to each other and encircled by a coiled spring.

8. A feed rollercomprising two shafts or cores arranged at an angle to each other and rounded at their inner ends, and a coiled spring covering.

' vided with a suitable socket and set screw;

9. In combination with the main frame pro- In witness whereof I hereunto set my hand in the presence of two witnesses.

' JOHN W. FRIES.

Witnesses:

B. J. PFOHL, J AS. E; REIOH-

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