US471177A - Coal-sifter - Google Patents

Description

(No Model.)

E. W. HUMPHREYS.

GOALISIPTER. v No. 471,177. Patented Mar. 22', 1892.

' NITED T STATES PATENT rrrcn.

EDIVIN WV. HUMPI-IREYS, OF CHICAGO, ILLINOIS.

COAL-SIFTER.

SPECIFICATION forming part of Letters Patent No. 471,177, dated March 22, 1892.

Application filed Tune 30, 1891. Serial No. 397,967- (No model.)

To all whom it may concern.-

Be it known that I, EDWIN WV. HUMPHREYS, acitizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invent-ed a new and useful Improvement in Coal-Sifters, of which the following is a specification.

The object of my invention is to provide a coal or ash sifter of an improved construction for domestic use.

This invention is in the nature of an improvement upon a coal-sifter for which Letters Patent of the United States were granted to me on the 24th day of March, 1891, No. 448,018, and my present construction is made with a view of more perfectly adapting the device to its purpose.

In the drawings, Figure 1 is a view in front elevation of my improved coal or ash sifter; Fig. 2, a central sectional elevation taken in the direction of the back of the device; Fig. 3, a broken section on line 3 of Fig. 2, viewed in the direction of the arrow; and Fig. 4, a broken sectional view of the upper part of the device, illustrating its operation.

The construction of the sifter proper involves an outer casing A, formed internally into three compartments A, A and A the up per section being closed by a vertically-swinging door X, hinged to the case along its upper edge, and the lower compartment A afford ing a receptacle for a drawer A The compartments A and A are separated bya floor t, which extends from one side of the case part way across to the other side. The drawer A is divided into two compartments 8 s, and above the said compartments are chutes 'r r in the positions shown. Between the edge of Q the floor t and the side of the case is an opening t, and extending below the said opening is an inclined screen g, which terminates at the edge of the chute r, as shown.

The construction thus far described is the same as that of my patented sifter above referred to, with the exception of the drawer A, which may be dispensed with. At the edge of the floor t is a cleat or support 25 to which is hinged an upsetting platform 13. On the edge of the platform p, adjacent to the opening t, is a cleat 1), provided on its edge with a series of prongs 19 At the edge of the floor If and extending therefrom down to the screen q is a series of prongs 25 The platform 12 is hinged to swing from the horizontal plane, as shown in Fig. 2, to a substantially vertical plane, as shown in Fig. 4. Secured to the inner face of the door X is an arm a, which, as the door is closed, engages the under side of the platform 19 and swings it from the horizontal to the vertical position. I

In practice the platform p is turned to the horizontal position, and an ash-pan Y, of ordinary construction and filled with the mixed coals and ashes, is inserted through the door X to rest upon the platform 19 against the cleat p. The door X is then closed, and in closing the arm m upsets the platform, as described, and with it the ash-pan Y, which is turned to the positionshown in Fig. 4. The contents of the pan drop upon the prongs t and i which tend to scatter the mass of coals and ashes over the screen q, and the sifting process is effected in the usual way by the finer particles dropping through the screen to the compartment 8' and the coarser particles running down to the compartments. While the sifting operation is taking place the door of the case is closed, so that no dust will be expelled from the case to cause annoyance.

While the construction of the upsetting means shown is the one I prefer to employ, it may be varied without departing from the spirit of my invention. I do not therefore confine myinvention to the construction illustrated, or to the. use of the upsetting platform 19, as the arm a: maybe caused to engage the under side of the pan Y as thedoor is closed and upset it in the same manner on the support 25 What I claim as new, and desire to secure by Letters Patent, is

1. In a sifter for ashes and the like, the combination, with the case A, provided with a screen and a door above the screen, of a receptacle for the material to be sifted removable from the case and replaceable therein, a support for the receptable above the screen, and upsetting means for the receptacle actuated by the closing of the door, substantially as described.

2. In a sifter for ashes and the like, the combination, with the case A, provided with a screen and a door above the screen, of a platform pivotally supported above the screen,

4. In a sitter for ashes and the like, the combination, with the case A, provided with a screen and a door above the screen, of a platform pivotally supported above the screen, and an arm on the door operating as the door is closed to engage and upset the platform, substantially as and for the purpose set forth.

EDWVIN V. HUMPHREYS.

In presence of- J. W. DYRENFORTH, M. J. FROST.

Correction in Letters Patent No. 471,177.

it'is hereby certified that in Letters Patent No. 471,177, granted March 22, 1892,

upon the application of Edwin W. Humphreys, of Chicago, Illinois, for an improvement in Goal-Sifters, an error appears in the printed specification requiring correction, as f followsz'In line 3-, page 1, the clause citizen of the United States, should readsubject of thc Queen of Great Britain,- and that the said Letters Patent should be read. with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 26th day of April, A. D. 1892.

[SEAL] CYRUS 'BUSSEY,

Assistant Secretary of the Interior.

Gountersigned:

W. E. SIMoNDs,

Commissioner of Patents.

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