US302047A - Cafe mill - Google Patents

Description

(No Model'.) I r 2 Sheets-Sheet 1.

H. B. STEVENS.

CANE MILL. v

atented July 15 1884.

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(No Model.) k 2 Sheets-Sheet 2.

H. B. STEVENS.

. GANE MILL. No, 302,047. Patentd July 15, 1884.

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N. PETERS, Phoblilhugnphnn Wank- D. c.

p UNirE STATES PATENT OFFICE.

HENRY B. srEvENs, or BUFFALO, Ew YORK, ASSIGNOR TO GEORGE L.

SQUIER, or SAME PLACE.

\ CANE-MILL.

' SPECIFICATION forming part of Letters Patent No. 302,047, dated July 15, 1884.

I Application filed June 13, 1883. (No model.) I

To all whom it mag/concern.-

Beit known that I, HENRY B. STEvENs, of the city of Buffalo,- in the county of Erie and State of New York, have invented new and 5 useful Improvements in Cane-Mills, of which the following is a specification.

This invention relates to certain improvements in that class of cane-mills which are composed of three horizontal rollers arranged triangularly, and has for its object to improve the construction of the turn-plate which is located between the rollers.

My invention consists to that end of the improvements, which will be'hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, consisting of two sheets, Figure 1 is a sectional elevation of a mill provided with my improvements. Fig. 2 is a side elevation of the same mill with a modified construction of the driving mechanism. Fig.3 is a sectional elevation at right angles to Fig. 2. Fig. 4 is a top plan view of the mill represented in Figs. 2 and 3. Fig. 5 is a sectional view, on an enlarged scal'e, of the scraper or turn-plate. 'Fig. 6 is an enlarged sectional view of one of the bearings of the shaft of the turn-plate.

Like letters of reference refer to like parts in the several figures.

A represents the upper or driving roller; A, the feed-roller, and A the discharge or bagasse roller.

B B are the side frames, supported upon sills b b, which in turn rest upon cross-sills b b.

B B are columns formed atboth ends of each side frame, and connected with the crosssills b by diagonal brace-rods O, which are secured with their upper ends to the upper portion of the columns. The lower ends of the 40 rods 0 are provided with hooks c, which engage with hooks a secured to the cross-sills.

, a represents the shaft of the driving-roller A, and a a the lower stationary portions of the bearings which support the shaft a. l V

D represents the upper movable portion of the bearing, composed of brasses d and a cappiece, d. The upper portion, D, of each bearing is held down by a bent rod, E, which rests with its bent portion 6 upon the cap d, and

extends with its lower ends through the side frames and sills, b, and is provided below the sills with rubber springs e and screw-nuts and washers e e.

F is a bridgetree connecting the upper ends of the four columns B.

is a long vertical bearing, formed centrally in the bridge-tree F. G is the driving-wheel secured to the shaft and g the sweep-cap.

H is the bevel-wheel, secured to one end of the shafta, and engaging with the crown-wheel G. h is a spur-wheel secured to the opposite end' of' the shaft a, and engaging with spurwheels h on the shaft of the feed and discharge rollers A A, so asto drive these rollers from the top roller.

. In these roller-n1ills having their rollers arranged triangularly there exists a liability of the cane choking in the triangular space between the rollers, and turn-plates or scrapers have been employed to conduct the cane from the feed to the delivery roller. These turnplates or scrapers are liable to break under the great strain to which they are subjected, and it\ is very difliculttto adjust them to the varying adjustments of the rollers. In my improved mill the turn-plate is so constructed as to avoid these difficulties.

T represents the turn-plate, which is constructed with a sharp edge fitted accurately to the feed-roller at a short distance below the point of contact between the feed-roller and the top roller. The turn-plate extends backwardly from its edge eccentrically with the top roller, so that the space between the plate and the periphery of the top roller increases gradually from the edge to the heel of the turnplate.

I i are ribs or flanges, formed along both sides of'the turn-plateI on its upper side, and

projecting between the flanges j of the top roll- 0 from the ends of the rollers as the top roller rises and falls in adjusting itself.

It represents a heavy square boss or enlargement formed on the under side of the turnplate, and Z represents a'square shaft, which passes through a corresponding opening in the enlargement in. The shaft Z rests in openings m, formed in the side frames, 13, and each bounded by four convex sides, as represented Ioo er, A, to prevent the cane from running off wheels h, and has the form of a handle, to faeilitate the withdrawing of the shaft. Upon drawing the shaft out of the turn-plate I and seats m in the side frames, B, the turn-plate is released and drops down between the rollers A A The shaft Z is arranged equidistant from the rollers A A and the turn plate can therefore be readily reversed, so that either of said rollers can be used as the feed or discharge roller, as may be most ,convenient.

1- represents the adjustable bearings, in which the journals of the lower rollers, A A, are

supported; and 0- represents the set-screws, whereby these bearings are adjusted toward or from the top roller, A.

I claim as my invention 1. In a cane-mill, the combination of a turnplate having at its heel an enlargement provided with a square opening, and a square removable shaft, substantially as set forth.

2. The combination, with the turn-plate and its square shaft, of supports provided with openings having four convex sides, by which the square shaft is supported and permitted to adjust itself in adjusting the turn-plate, substantially as set forth.

3. The combination, with the main frame, feed-roller, and driving-roller, of aturn-plate, I, having at its heel an enlargement provided with a square opening, a square shaft, l, a handlever, 12, secured to said shaft, and aset-screw, 0, substantially as set forth.

H. B. STEVENS.

Witnesses:

JNo. J. BONNER, Guns. F. GEYER.

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