US592137A - Gin-saw - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

J. M. GARDNER. GIN SAW.

Patented Oct. 19,1897.

WITNESSES INVENTOR (No Model.) 1 2 SheetsSheet 2 J. M, GARDNER. GIN SAW.

I Patented Oct. 19,1897.

VI TNE SSE S l I I v the shaft-truing collars carried by the clamping-collars, for the purpose of straightening such as will enable others skilled in the art to shaped slots provided on the saws, and also I rrED STATES- PATENT Fr es.

JEFFERSON M. GARDNER, OF NEW LONDON, CONNECTICUT.

GIN-SAW.

SPECIFICATION forming part of Letters Patent No. 592,137, dated October '19, 1897.

Application filed March 17, 1897.

To all whom it may concern:

Be itknown that I, JEFFERSON M. GARDNER, a citizen of the United States, residing at New London, in the) county of New London and State of Connecticut, have invented certain new and useful Improvements in Saw-Cylinders for Cotton Linters and Gins; and I do hereby declare the following to be a full, clear, and exact description of the invention,

which it appertains to make and use thesame.

This invention relates to saw-cylinders for cotton-seed linters and cotton-gins.

The object of my invention is to provide a cylinder in which the saws are held in place in such manner as to permit of one being removed without disturbing any of the others, for the purpose of inserting a new saw for one that is broken or worn out, to provide means for keeping the saws in, true alinement both with each other and with the shaft, to provide spacing blocks or rings of such construction as to subserve the double function of holding the saws at a proper distance apart, and also for locking the saws in operative position with relation to thecylinder and to each other, and, finally, to provide a saw-cylinder in which the parts may be taken apart and replaced by a person of ordinary ability, dispensing with the employment of skilled labor for the purpose.

In a saw-cylinder characterized by my invention I employ a shaft on which are arranged two collars constituting the saw-clampin g collars, one of these being loose, and'the other fixed, with relation to the shaft, and provide each with set-screws adapted to bear against the shaft when sprung. Secured between the two clamping-collars are a plurality of combined lockin'gand spacing rings, the same being provided with a groove to fit on a spline carried by the shaft, so-that when assembled these rings will be held from turning on said shaft. Each ring is provided, in this instance, with two studs or bosses extending at right angles to the face of the rim, and with two openings arranged midway between the studs, the function of the studs being to engage hook- Serial No- 628,028. (No model.)

for projecting through the openingsof the adj acent spa'cing-rin g, thereby more firmly holding the rings against rotation. I

The saws are each constructed of two parts, semicircular in shape, and provided at their meeting edges each with a teat and a recess adapted to engage corresponding parts on the other section of the saw, and also with curved or hook-shaped slots or recesses for engaging the lugs on the'spacing-rings, as before stated. When assembled, the lugs of the alternate spacing-rings will register, so that the junctures between the meeting edges of the saws are not in line, but are disposed at an angle of about ninety degrees with rela tion to each other, by which arrangement the saws will be made to operate more effectively by avoiding bunching or gathering of the lint between the said meeting edges of the sawsections.

Further and more specific details of con-' struction will be hereinafter more fully described.

In the accompanying drawings, forming a part of the specification, and in'which like lettersof reference indicate corresponding parts, Figure l is a view in sectional elevation, showing the parts assembled on the shaft. Fig. 2 is a view in elevation of one of the combined locking and spacing rings removed from the shaft. Fig. 3 is a sectional view taken on the line 3 3, Fig. 2, showing more particularly the construction of the spacing-ring. vFig. 4Eis a detail view of one of the clamping-rings removed from the shaft. Fig. 5 is a detail view of one of the saw-sections, showing its peculiar construction.

Referring to the drawings, A designates the shaft, upon one end of which is mounted a fixed collar a, and on the opposite end a collar a interiorly threaded for engaging a threaded portion of the shaft, by which arrangement this latter collar may be moved to and from the fixed collar. Each of the 'collars a and a respectively, are provided with set-screws a which are adapted to be projected beyond the inner face of each of the collars and into engagement with a shaft-truing collar a, carried by the inner face of each of the said collars a a as clearly shown in Fig. 1.

Mounted on the shaft, between the collars a and a are a plurality of combined locking and spacing rings 13, comprising, each, a hub b, a rim b and spokes 7J connecting the hub to the rim, the parts being, by preference, made integral. These spokes are, by preference, four in number, and the two in opposite alinement are provided with studs Z2 projecting at right angles to the face of the wheel, and the other pair with openings b to be engaged by the studs b of the adjacent spacing ring, as clearly shown in Fig. 1, this order being kept up throughout the entire series of rings, by which arrangement the entire number will be securely held together against independent movement, a spline a on the shaft engaging keyways Z) in the rings, serving to hold the latter effectually against rotation. It is to be understood that this order may be reversed-that is, that the rings may be provided with a spline and the shaft with a keyway-and be made to operate satisfactorily. As shown in Fig. 3, the rim b of the lockingrings extends laterally beyond the face of the hub, so that when assembled this rim will bear firmly against the saws to hold them in place.

The saws O are constructed in two parts, exactly duplicate in character, each being provided with a curved slot 0, with a teat c and with a recess 0 and when the sections of the saw are assembled the teats and recesses of each section interlock, so as to prevent any lateral sliding of the sections, which would interfere with the continuity of the periphery of the saw, while the curved slots 0 are adapted to be hooked around the studs 0 as clearly shown in Fig. 2, and thereby hold the saws in position with relation to the locking-rings.

\Vhen the parts are assembled, as shown in Fig. 1, the collar a is tightened to clamp the saws securely between the locking rings. \Vhen this is done, if it should be found that the shaft is sprung, it will be only necessary to loosen certain of the set screws a and tighten such others as will bring about the springing back of the shaft to a true line.

It is to be understood that the shaft A is of considerable length, so that the truing of the same, by springing it back to line, as described, may be accomplished with readiness and case.

It will be observed that the disposition of the curved slots 0 of the saw-sections are in the same general line with the trend of the teeth. The object of this arrangement is to from the head and inflicting damage to the I machine and injury to the operator.

It is to be understood that I do not limit myself to this exact form of slot, as one more or less curved may be employed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. A saw-cylinder for cotton-seed linters and cotton-gins, comprising a shaft, a plurality of combined spacing and locking rings thereon provided with outward -projecting lugs, saws having open-ended slots engaging the lugs, and means for securing the saws between the said rings, substantially as described.

2. A saw-cylinder for cotton-seed linters and cotton-gins, comprising a shaft, a plurality of combined spacing and locking rings thereon, held from turning independently of the shaft, and provided with outward-projecting lugs, saws having open-ended slots ongaging the lugs, and clamping-collars for securing the saws between the said rings, substantially as described.

3. A saw-cylinder for cotton-seed linters and cotton-gins, comprising a shaft, a plurality of combined spacing and locking rings thereon, held from turning independently of the shaft, and provided with outward-projecting lugs, sectional saws each having openended slots engaging the lugs, and cla1npingcollars for securing the saws between the said rings, substantially as described.

4. A saw-cylinder for cotton-seed linters and cotton-gins, comprising a shaft, two collars mounted thereon, one being fixed and the other movable with relation to the shaft, spacing-rings mounted between the collars and having a key connection with the shaft, said rings being provided with lugs or projections, and saws clamped between the spacingrings and having open-ended slots engaging the lugs, substantially as described.

5. A saw-cylinder for cotton-seed linters and cotton-gins, comprising a shaft having clamping-collars mounted thereon, one of which is stationary and the other movable with relation to the shaft, a plurality of spacing-rings having a key connection with the shaft, said rings being provided with lugs or projections, saws held in place between the said rings andhavingopen-ended slots engaging said lugs, shaft-truing collars interposed between the clam ping-collars and the spacingrings at each end of the cylinder, and setscrews carried by the clamping-collars and adapted to be turned into engagement with the shaft-truing collars, substantially as described.

6; As a new article of manufacture, a saw for cotton-seed linters and cotton-gins, consisting of two sections, the meeting edges of each section of which are provided the one with a recess and the other with a teat and with a slot adjacent to one of the meeting edges, substantially as described.

7. As a new article of manufacture, a saw for cotton-seed linters and cotton-gins, consisting of two sections, the meeting edges of each section of which are provided the one with a recess and the other with a teat or projection and with a slot adjacent to one of the meeting edges, said slot extending substantially in the direction of the trend of the sawteeth, substantially as described.

8. As a new article of manufacture, a saw for cotton-seed linters and cotton-gins, consisting of two sections, the meeting edges of each section of which are provided the one with a recess and the other with a teat or projection and with a curved slot adjacent to one of the meeting edges, said curved-slot extending substantially in the direction of the trend of the saw-teeth, substantially as described.

vided with openings, substantially as and for the purpose specified.

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

JEFFERSON M. GARDNER. Witnesses:

- E. H. PARRY,

R. M. ELLIOTT.

Images