US556347A - Ash-sieve - Google Patents

Description

(No Model.)

L. @HALL ASH SIEVE'.

No. 556,347. Patented Marfln', 1896.

A ANDREW HGHMMM,PHOTOUTNOYWASUINGTDRD-C UNITED STATES PATENT EETCE.

LEWIS R. HALL, OF MEDFORD, MASSACHUSETTS.

ASH-SIEVE.

SPECIFICATION forming part of Letters Patent No. 556,347', dated March 1*?, 1896.

l Application filed October 25, 1895. Serial No. 566,840. (No model.)

T0 all whom t may concern:

Be it known that I, LEWIS R. HALL, of Medford, Middlesex county, Massachusetts, have invented an Improved Ash-Sieve, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this speciiication, in which- Figure lis a perspective view of an ash sieve or sifter constructed in accordance with my invention and adapted for use upon a barrel. Fig. 2 is a central vertical section taken in the direction of the length of the shakin g-rod; Fig. 3, a central vertical section in the direction of the line a; so of Fig. 2. Fig. 4 is a horizontal section in the direction of the line y y of Fig. 3; Fig. 5, a detail, enlarged, to be referred to.

This invention belongs to that class of ashsifters designed for use in dwelling-houses, schools, publie buildings, dac., for separating coal from the ashes after having passed through the re; and my present invention consists in a pair of oppositely-located sieves pivoted at their upper ends within a casing and having Atheir lower ends loosely connected by an interposed third sieve, the said sieves being vibrated by a handle or shaker which projects out through the side of the casing and the ashes escaping through its open bottom into an ash-receiver thereunder, the good coal being directed from the sieves out through an opening in the side of the casing into any receptacle provided therefor, my improved sifter being adapted for ready application or attached to the head or cover of a barrel or other ash-receiver, and being hin ged thereto to admit of the sifter being tipped forward to facilitate the discharge of the separated coal.

My invention also consists in certain details of construction to be hereinafter described and claimed.

In the said drawings, A represents a square casing hinged at a to the top of a barrel-cover D; Z), the lid of the casing hinged thereto at S; c, an opening in the bottom of the casing in line with an opening d in the cover B; O', the ash-receiving barrel thereunder.

e is a side opening controlled by a metal slide 7i, which may be moved up and down in grooves t' to open and close the space bounded by the opening e, said slide having its top bent outwardly and extending up above the top of the body of the casing, and the lid b is cut away, so as not to interfere with the movement of the slide either when the lid is being thrown up to open or down to close the easing. (See Fig. 5.)

C D are two screens of woven-wire netting located within the easing opposite to each other, the upper end of each being loosely pivoted to a supporting-rod Z, extending between the opposite sides of the casing, being attached to its rod by a couple of rings m, which permits the screen to have a transverse play thereon. These screens C D preferably incline downward and inward toward each other, being nearer together at their lower ends than at their points of suspension. (See Fig. 2.)

G is a third screen located preferably in a horizontal plane and interposed between and loosely pivoted to the lower ends of the screens C D.

Extending under the lower screen, G, is a long rod or shaker fn, its inner end being secured to said screen, while its outer end projects through a slot p in the casing and terminates in a looped handle r, and from the foregoing construction it will be understoodthat the mixed ashes and coal to be separated are forcibly agitated by the vibration of the screens C D G, upon and against which they are dumped, the result being that the ashes fall into the receiver C thereunder and only the separated coal remains upon or against the screens. After the slide 71,' is raised and the casing tipped forward on its hinges (see Fig. 1) the coal is readily discharged through the opening e into any convenient receptacle, being guided in its exit by a short chute s and flexible conductor t.

During the operation of vibrating the screens to separate the coal and ashes from each other the casing is tightly closed by its lid b, thereby preventing the escape of any dust therefrom, said lid being of less width than that of the top of the easing and abutting against the inner surface of the projecting top of the slide when down.

l. An ash-sifter-eonsisting essentially of a casing A having an open bottom c, a side IOO opening e and a. slide 7L controlling the latter, in combination With t pair of screens C D oppositely located and pivoted at their upper ends Within the easing-Pt screen G interposed 5 between and loosely connected With the lower ends of the screens C D sind t means of agitating the screens,- substfintially as described. 2. A casing A having an open bottom c, :L side opening,r e, i slide h for closing the latter, L conductor and a shaker n, in combination with the screens C D G, those C D being oppositely disposed to ca-cll other and suspended at their upper ends Within said casing, and the screen G interposed between and loosely connected with their lower ends, silbstmitin-lly as specified.

lVitness my hand this 8th day of October, 1895.

LEVIS R. HALL. In presence of- A. F. STEARNS, S. W. CULBREATH.

Images