US100331A - Improved coal-sifter - Google Patents

Description

B. SEARS.

Coal Sif ter.

No. 100,331. Patented lMarch 1, 1870.

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N. PETERS. Phmuvnmognpner. wminman, D. c.

tuitt ,States BROWN SEARS, OF OOLD SPRING, NEW YORK.

Letters Patent No. 100,331, dated ,March 1, 1870.

IMYROVED COAL-SIITER.

The Schedule retexred to in these Lettera Patent and making part of the same.

To all whom t't may concern 'Be it known that 1, BROWN SEARS, of Cold Spring, in the county of Putnam, and State of New York, have invented a new and improved Coal-Sifter; and 1 do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification.

Figure 1 is a front view.

Figure 2 is a vertical section through the cetter Figure 3ds ahorizontal section on the line 1 and 2.

Figure 4 is a view of the movable riddle-box.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish a simple, convenient, and effective machine for sittin g, without the annoyance of dust; and

1t consists in the construction and combination of the various parts of the machine, as hereinafter more fully described.

A is a close box, with a hinged cover, B.

O is a drawer for receiving the dust.

D is a movable box, containing the wire sieve J.-

M is apartition in box D, having two openings K K and one opening marked L.

E is a lever for giving motion to the movable riddlebox 1).

F is a rod connecting lever E to box D.

G is a spout for the discharge of material that does not pass through the meshes of the sieve.

H are four rollers connected to the bottom of movable 'box D, or substituted by half-round slides.

I I are two guides or tracks for rollers 0r slides H to run on.

The mode of operating the 'machine is as follows:

The cover Bis raised, the material is thrown in the movablev box D, and thcu the cover is closed. lhe handle E is moved back and forward in a rapid inanner until all the material that has not passed through the meshes has passed through the openings K K and L, into and through theI spout G, into any receptacle that is placed under the spout.` l1`he dust and small particles that pass through the meshes fall into the drawer C. The drawer is pulled out and emptied, then replaced for the next operation. No dust or small particles can escape, the box A heilig completely closed.

The partition Min the movable box D prevents the dust or small particles from passing out of the spout G, for all the material that reaches the spout (l must pass through the openings KK and over the intel'- vening meshes before it reaches the partition, and then is compelled to move along until it passes through the opening L into the spout G. 1n the mean time the dust and small particles fall through the meshes into the box O.

Having t-hus described my invention,

What I claim as new and original, and desire to secure by Letters Patent, is

The construction of the movable box D` with its partition M and openings K K, rollers H H and guides I 1', in combination with the closed box A and drawer O, as shown and described.

The above specification of my invention signed by me this 29th dav of N ovember. 1869.

BROWN SEARS.

Witnesses:

C. H. Feuers, JOHN MYERS.

the opposite side ot'

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