US330745A - Middlings purifier - Google Patents

Description

(No Model.) v 3 SheetsSheet 1.

G. P. SHERWOOD.

MIDDLINGS PURIFIER. No. 330,745. Patented Nov. 17, 1885.

s Sheets- 8mm; 2. G. F.. SHERWOOD.

MIDDLINGS PURIFIER. v

Patented Nov. 17, 1885.

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(No Model.)

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(No' Model.)

No. 330.745; Patented N o vr 1.7. 123 5.

UNITE STATES j PATENT OFFic GEORGE F. SHERWOOD, OF JACKSON, MICHIGAN, ASSICNOE TO THE GEORGE T. SMITH MIDDLINGS PURIFIER COMPANY, OF SAME PLACE.

MlDDLlNQS-PURIFIER,

SPECIFICATION forming part of Letters Patent No. 330,745, dated November 1'7, 1885.

Application filed July 2, 1884. Renewed July 16, 1885. Serial No. 171,804. (No model.)

To aZZ whom it may concern: 7

Be it known that I, GEORGE F. SHERWOOD,

a citizen of the United States, residing at J ackson,in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Middlings-Purifiers, of which the following is a specification, reference being had therein to the accompanying drawlngs.

Figure 1 is a side elevation of so much of a middlings-purifier as is necessary to illustrate my invention, apart of the casing being removed. Fig. 2 is a detached elevation, enlarged, of that partof the purifier to which my invention specifically pertains. Fig. 3 is a top or plan View of Fig. 2. Fig. 4is atransverse vertical section taken on line a: y of Fig. 3, looking in the direction of the arrow 1 of that figure. Fig. 5 is an enlarged view, showing in detail the brush-shaft bearing at the tail end of the machine.

Like letters indicate like parts in all the figures.

A A are the'front vertical posts, and B B the rear vertical posts.

C D are horizontal girts or rails connecting the posts A B on each side of of the machine. The other parts of the frame-work, not being lettered,may be of any usual or approved construction, as may also bethe gather-boards E and easing F, although in practice I prefer that these parts correspond substantially to those shown in various patents.

G is the shaker,which is suspended by pendulum-links or hangers, which are at their upper ends pivoted to the casing or framework, and is reciprocated by means of eccentrics on shaft H and pitmen h h, which at their inner rear ends are attached to a cross-bar, g, of the shaker.

I I are the brushways, the upper surfaces of which are traversed by the back of the brush J when the bristles of the brush a'rein contact with the under surface of the boltingcloth, which is stretched across the shaker.

I will now describe the devices which I have invented for supporting and adjusting these 'brushways to insure aproper engagement of the brush with the bolting-cloth.

K Kare vertical standards, each formed by preference of cast metal,and consisting, essentially, of a flat plate having ribs projecting outwardly from its edges, and provided with angular feet is at each end, and with a central vertical slot, j. Each standardis of a length equal to the distance between the rails or girts C D, to which it may be secured by means of a lug or spur, c, projecting from the upper end of the standard into the socket in the under side of rail C, and a screw, d,which 50 passes through the lower foot or plate and into the upper surface of the rail or girt D. These standards are by preference arranged with their inner faces about on a line with the inner faces of the rails or girts.

L L are carriers interposed between the vertical standards and the brushways, and in this instance are made in the form of thimbles flattened at their ends, to engage with the standards and'the sides of the carriers, and perforated to receive bolts Z Z, the outer ends of which pass through the slots j j in the standards and have thumb-nutsi t applied thereto, by means of which the height of the brush,- ways relative to the shaker may be adjusted at will Within certain limits-that is to say, the lengths of the slots j j-so as to insure aproper engagement of the brush with the boltingcloth, as will be readily understood without further explanation; butI do not wish to be limited to the particular form shown of either the vertical standards, the carriers, or the devices for securing the carriers to the stand ards, as many modifications therein will naturally suggest themselves to a skilled mechanic without departing from my invention.

M M, Figs. 1 and 2, are the brush-chains, mounted near each end of the machine upon sprocket-wheels N O, which in turn are mounted, respectively, upon shafts 0 P. The 0 shaft P is adjustably supported in the rear ends of forked hangers Q Q, which slide in grooved ways in platesR B, which are bolted or secured to the outer faces of the brushways. q q are thumb-nuts on the ends 'of the bolts which pass through slots qf in thehangers Q Q, and into or through the plateslR R.

r r are set-screws mounted in flanges projecting outwardly from plates R R, the inner ends of the screws engaging with the ends of K the hangers Q Q and operating to thrust the hangers, the brush-shaft P, and the sprocketwheels N toward the tail end of the machine, for the purpose of tightening the brush-chains, and the thumb-nuts q q and their bolts assist in holding the hangers in position after a proper adjustment has been made.

To prevent cramping of parts, and thus facilitate a proper and easy engagement of the brush-shafts with their bearings 19 12, these bearings are made in the form of sleeves or short sections of hollow cylinders having radially-projecting lugs or pivots-oz n, which are seated in socket-s or recesses formed for their reception in the forked ends of the hangers. (See Figs. 2, 3, and 5.) The opposite doubled ends of the chains pass over sprocketwheels 0, which are mounted upon shafts 0, driven by a chain traversing sprocket-wheel 0. (See Fig. 3, not shown in the other figures.) This sprocket-wheel, being keyed to the brush-shaft or a suitable train of gearing or belts, may be employed for that purpose. The shaft 0 is mounted at each end in asleeve,

v S s, the part 8 being an expanded bearing forming a complete circle in cross-section on a line at right angles to the shaft, and being also formed in an arc of a circle in cross-section on a line parallel with the axis of the shaft. Each of these party-spherical bearings s is mounted inside of a correspondinglyshaped ring, t, upon the inner end of a shank or arm, T, which is mounted in a practically horizontal position in one of the front posts A.

U is a threaded hand-wheel engaging with a threaded shank or stem, u, projecting outwardly from the end of the arm T, by means of which devices the shaft 0 can be moved bodily at each end separately toward the posts A A, whereby the tension of the chains M M can be regulated at will.

I am aware that vertically-adj ustable brushways or bars have been employed below the shaker in a middlings-purifier, and also that shafts which carry the chains have been made adjustable for the purpose of regulating the tension of the chains, and therefore do not claim such constructions broadly; but many advantages grow out of the combination of these yielding bearings and their adjusting devices with the brush-shafts and brushways of a middlings-purifier. For instance, by'an examination of Fig. 5 it will be readily seen that either of the bearings of this construction may be moved toward the tail of the machine to produce a proper tension of the belts or chains without cramping or binding the brushshaft, either in the bearing which is thus adj usted or the one near the opposite end of the shaft, such adjustment being sometimes necessary on account of variations in the lengths of the belts or chains, or from other causes. So,also,it sometimes happens that the rear end of one of the brushways needs to be elevated without making a corresponding adjustment of the other brushway, and this can be done without cramping the shaft in its bearings;

hence I efi'ect a decided improvement in a middlings-purifier by combining these bearings with the brushways, belts or chains, and brush-shafts, even though bearings of this general character and possessing some or all of the capabilities of mine are old, broadly considered.

Instead of the carrier shown, I may move the brushways so close to the vertical standards as to permit bolting directly to the standards, although such construction mightbe undesirable, because it would necessitate a much longer brush-back; or, instead of the form of standards shown, I might use round or manysided rods, and employcarriers which have .eyes or loops in their outer ends to surround the round or many-sided standards, to which they could be secured by set-screws passing through the eyes and engaging with the standards; or other modifications in detail might be adopted without departing from the spirit of myinvention. Nor doIwish to be limited to the specific construction of the bearings and their pivotal connections with the hangers Q Q, by means of which flexibility of the connections between the bearings and the hangers is secured; nor to the particular construction of the party-spherical bearings and inclosing-rings at the other end of the machine, by means of which a similar result is attained, and whereby adjustments of either of the bearings may be made without a similar adjustment of the bearing which supports the other end of the shaft, and without producing any undue cramping or friction between the shaft and its bearing; nor do I wish to be limited to brushes which are driven by endless belts, because the invention is equally applicable for the support of brushes which are actuated by other mechanism, or for the support of a traveling air blast or other style of clothcleaner in which it is desirable to adjust the supports relative to the bolt-cloth.

What I claim is- '1. In a middlings-purifier, the combination of the brushways, the vertical posts or standards by the sides of the brushways, and devices for supporting and adjusting the brushways upon the vertical standards, substantially as set forth.

2. In a middlings-purifier, the combination of the brushways, the slotted vertical posts or standards by the sides of the brushways, the carriers interposed between the brushways and the vertical standards, and devices adjustably supporting the brushways upon the vertical standards, substantially as set forth.

3. In a middlings-purifier, the combination of the brushways, the slotted vertical standards, and the carriers interposed between the brushways and the vertical posts and engaging with the outer and inner faces of the slotted posts, substantially as set forth.

4. In a middlings-purifier, the'combination, with the brushways, of'the vertical posts, the carriers, and the screw-threaded bolts and nuts connecting the brushways and the carriers with the vertical standards, substantially as set forth.

5. In a middlings-purifier, the combination, with the brushways, of the shaft P, the forked hangers, and the bearings surrounding the shafts and pivoted in the forked ends of the hangers, substantially as set forth.

6. In a middlings-purifier, the combination of the brushways, the shaft, the forked hangers, the bearings surrounding the shaft and pivoted in the hangers, and adjusting devices connecting the hangers with the brushways, substantially as set forth.

7. In a middlings-purifier, the combination, with the brushways and belts, of the shaft 0, the sleeves surrounding the shaft and provided with party-spherical bearings, and the arm T, having rings 15, adapted to receive the party-spherical bearings, substantially as set forth.

8. In a middlings-purifier, the combination, with the brushways and belts or chains, of

the belts or chains, the shaft 0, and yielding bearings supported upon the main frame, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE E. SHERWOOD. Witnesses:

O. E. BENNETT, GEo. S. BENNETT.

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