US627768A - Ash-sifter. - Google Patents

Description

No. 627,768. Patented lun'e' 275-1899; 0. F. ABBOTT.

ASH SIFTER.

(Application filed Mar. 15, 1 897.)

(No Model.) 2 Sheets-Sheet I.

WITNESSES:

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(No Model.)

0. F. ABBOTT.

ASH SIFTER.

(Application filed Mar. L5, 1697.)

2 sheets shet 2.

we NDRRKS PtTzns ca. mmoumm, wmnmarou. a. c.

Patehted lune27, I899.

U E rams "ATENT OFFICE.

CARY F. ABBOTT, OF CHICOPE E, MASSACHUSETTS.

ASH-SIFTER.

' SPECIFICATION forming part of Letters Patent No. 627,768, dated June 27, 1899.

I 7 Application filed March 15, 1897. Serial No. 627,490. (No model.)

T (0% whom it may concern.-

Chicopee, in the State of Massachusetts, have invented certain new and useful Improvements in Ash-Sifters, of which the following is a specification.

This invention has relation to that class of ash-Sifters which are equipped with a foraminous cylinder adapted to be rotated within a closed casing in such manner that the ashes may first be separated from the unburned coal and clinkers and taken away and the latter then collectedand sorted, if need be, so that the unburned coal may be used. An ash-Sifter of this kind is shown and described in United States Letters Patent No. 4187 ,009, granted to me November 29,1892, and reference may be had to the said Letters Patent for fuller information concerning'my present improvements, if it is desired.

It is the object of the invention to provide improvements having reference to the removable section or gate of the cylinder, by means of which the cylinder may be filled and access thereto may be had.

It is also the object of theinvention to provide an improved outer case for tightly inclosing the cylinder during the operation of sifting the ashes, which case shall also embody a chute of enhanced serviceability, and to provide an improved can-cover which may operate jointly with the chute or case and the can or ashreceptacle.

Reference is to be had to the annexed draw-. ings and to the letters marked thereon, forming apart of this specification, the same letters designating the same parts or features, as thecase may be, wherever they occur.

Of the drawings, Figure 1 is a vertical sectional view of my improved ash-Sifter complete. Fig. 2 is a perspective view of the screening-cylinder detached, the removable section or gate being represented as removed. Fig. 3 is an end view of the machine with the case cover or lid in open position. Fig. 4 is a perspective view of the removable section or gate of the screening-cylinder detached. Fig. 5 is a detail view of the manner of securingthe edges of the woven wire or the like to binding-strips. Fig. 6 is a sectional detail view of.a method of securing the edge of the can-cover to the lower edge of the chute.

v Figs. 7, 8, and 9 show difierent methods of Be it known that I, CARY F. ABB'OTT, of

attaching the woven wire of the cylinder to the heads thereof.

In the drawings, a designates the outer in-' closing case, the body portion of which may be made of galvanized or other suitable sheet metal and of cylindrical form, in the ends of which are secured the heads I) b, which may be of wood and to which the supporting-legs 0 may be secured.

d is the sifting or screening cylinder, the body part of which is composed ofv woven wire, while the ends 6 e are made from sheet metal, so as to render them fireproof. The saidscreening-cylinderis made to be revolved within the casing a by means of the crank j, which has a bearing g in the head I), the inner end of the journal part h of the crank being screw-threaded and turnedin the screwthreaded socket formed in the hub 2', conextends a journal-stud m, formed on the inner end of a headed bolt provided near its base with ribs, which bolt is forced into a hole formed in the end 1) of thecase, the ribs on the bolt, with the screws passed through its head and tapped into the casing-head b, serving to hold the journal-stud against turning.

The upper part of the casing is provided with a hinged lid or door 12, by which access may be gained to the'case, and a hasp or button (not shown) maybe provided to keep the lid closed while the sifting of ashes is in progress.

The screening or sifting cylinder d is also provided with a removable section or gate 0. (Shown detached in Fig. a.) The edges of the woven wire composing the body of the cylinder (Z on opposite'sides of the opening where the gate 0 is placed are bound by'strips of metal 1) p, which are folded over, so thattheir meeting edges will lie in the same'plane with the edge of the woven wire composing the body of the cylinder embraced by the folds of the strip of metal, as is clearlyrepresente d in Fig. 5.

With the parts in the position just described rivets or similar devices are passed through the folds of sheet metal and through the inclosed edge of woven wire, so as to firmly secure the parts in place. The edges and ends of the woven-wire part q of the gate 0 are similarly bound by strips of sheet metal q (l (1 as is clearly represented in Fig. 4:. One of the ends of the strips (1 g extend beyond the binding-strip q, as indicated at r 4", which extended ends a" r are adapted to be passed under one of the strips 19, with the projectingends r r of the strips 1 resting upon the periphery of the cylinder -heads e e. When the gate is placed upon the cylinder in this 'position, the hooks s s, pivoted upon the inner side of the ends c e of the cylinders, may be drawn over the projecting ends 'r, and so look the gate in position on the cylinder when ashes are being sifted by the device.

The end edges of the woven-wire body part of the cylinder are secured to the cylinderheads e e in one of several ways. As shown in Figs. 2 and 7, angular metallic clips t are formed, and one part of each thereof is riveted to the head, with the other angular part projecting over the periphery of said head, to which the selvage (or it might be a folded) edge of the woven wire is riveted, the rivets in the last-mentioned case passing through the meshes of the wire.

Another method of fastening the woven wire to the heads is by bending the end edges over the periphery of the heads and riveting the same thereto by rivets which extend in an axial line with the cylinder, as is shown in Fig. 8. Still another method for this purpose is shown in Fig. 9, where an angular flange or rim 'u, is double-seamed on the periphery of the heads e e, as at r, and the end edges of the woven-wire body are riveted to the said flanges or rims.

By all of these methods it is made practicable to construct the ends of the screening-cylinder of metal and the body part of woven wire and securely connect the two where required.

I have mentioned the body of the case a as being cylindrical in form. In its lower portion along its entire length, including its heads, a segment or part is cut away, as indicated along the line to, (see Fig. 3,) along which line the upper edges of the chute 0c are suitably connected, the sides and ends of the said chute being constructed so as to slope inward and downward, as shown.

y designates a flexible cover for the can a, which cover may be composed of felt or other suitable material bound or hem med at its inner edge around the central opening, as at y, which hemmed edge is embraced in a turnedover edge or bead 00, formed on the lower edge of the chute x. (See the detailed Fig. 6.)

The edge of the flexible can-cover y is provided with a rim g of a weight sufficient to hold the cover down with dust-proof closeness on top of the can z. With this construction and arrangement of parts and with the can in position, as shown in Figs. 1 and 3, the removable sections or gate 0 of the screeningcylinder may be removed and the said cylinder brought to such position that ashes emptied into the machine (with the case-lid in open position, as shown in Fig. 3) will be deposited in the cylinder. Then the latter becomes sufliciently full or Whenever it is desired, the section or gate 0 will be placed in position on the cylinder by thrusting the projecting points 7' under the binding-strips p, with the projection r resting on the periphery of the heads 6 e and the books .9 .9 brought over the said projections to latch or hold the gate in closed position. The case-cover n will then be closed and latched and the crank turned until the ashes are sifted, when the can 2 may be drawn out, the ashes emptied therefrom, and the can returned again to place under the cover y. The case-cover will now be opened, the gate 0 removed from the screening-cylinder, and the latter turned by means of the crank, so as to dump the.unburned coal and clinkers through the chute a: into the can to be disposed of as desired.

By making the screening-cylinder entirely of iron I obviate all liability of setting fire to any part of the machine by the dumping of hot ashes therein.

The methods described and shown of securing the woven wire to the cylinder-heads provides a very stiff, strong, and durable screening-cylinder, and the described manner IOC of journaling the cylinder in its bearings also enhances the durability and efficiency of the machine. Moreover, the general construction throughout tends to promote the usefulness of the machine and to make the same more simple in and economical of construction than heretofore.

Having thus explained the nature of the invention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it maybe made or all of the modes of its use, it is declared that what is claimed is 1. A screening-cylinder for ash-sitters comprising in its construction a Woven-Wire cylindrical body portion cl and heads 6 e, the woven-wire portion being provided with an opening. for the reception of the removable gate, the longitudinal edges of said wire body at the said opening being bound with strips of metal 19 p doubled thereon, and having rivets passed through the doubled portion of the strips and through the edges of the woven wire, in combination with a removable gate comprising the section 0 consisting of woven wire having binding-strips q (1 along its edges and ends and secured thereto by suitable rivets, the binding-strips 1 along the sides projecting over the heads 6 e and the strips g projecting from one of the sides and adapted to extend under one of the bindingstrips 19 of the body portion and suitable means for holding the removable gate with its end projections resting on the peripheries of the heads I) b.

2. The combination with the outercasing 7 provided with a sheet-metal chute, of the IO ed to hang over the upper edge of the can to hold the flexible portion of the cover closely against the edges of the suitable receptacle.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 25th day of I 5 March, A. D.,1S97.

CARY F. ABBOTT. WVitnesses:

J ENNIE T. ABBOTT,

EDE L. TILsoN.

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