US62537A - williams - Google Patents

Description

FICKEN & WILLIAMS.

Treating Bone Black.

No. 62,537. Patented Mar. 5, i867.

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R. FICKEN AND F. L. WILLI AMS, OF PHILADELPHIA, PENNSYLVANIA.

7 Letters Patent No. 62,537, datetlllfarcfi 5, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that we, RICHARD Frcxnu and FIELDING L. WILLIAMs, of the city and county of Philadelphia, and State of Pennsylvania, have invented a new and useful Machine for Cleaning and Purifying Bone-Black; and we do hereby declare 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 part of this specification, in which- Figure 1 is an elevation of the machine partly in section.

The nature of our invention consists in constructing a machine forseparating and collecting dust and other impurities tromboneblack, a' common term for animal charcoal. In the refining of sugar, the sirup is filtered through bonc bl aclt (broken fine, about half the size of a pee.) contained in upright iron cylinders. After being used a certain time the bone-black requires revivifying, which is done by reburning it in kilns. During this manipulation of it a quantity ,oi' fine (lust is formed, which has to be removed before using it again, as it obstructs and injures the filtration of the sirup. Various means are used to accomplish this, as by sifting and blowing. By the use of our machine the dust is both separated from the bone-black and collected in boxes, thereby preventing the nuisance and injury to surrounding property which takes place when the dust is allowed to escape into the atmosphere.

To enable other skilled in theart to make and use our invention, we will proceed to describe its construction and operation. referring to drawing, fig. 1'

A A A represent the floorsof the sugar-house. On the floor, level with the topof the filters, is placed a castiron box, 13, about three feet wide and-four feet long. Across it is stretched a fine wire screen, K. Above the box is a funnel-shaped orifice, F, opening into the box by a long narrow slit, g, about three-fourths of an inch wide, and reaching nearly across the box. C G G are hand-holes in one side, with movable doors, through which the screen 'K can be brushed occasionally. The bottom of this box is sunk hopper-shaped, and has an outlet rcgulatcdby a sliding door, 01. At one endof the box isplaced a fan-blower, E, having a nozzle or outlet, H, projecting into the'box 13, within an inch or two of the inlet 9. This said nozzle H is a little wider than the :said inlet, and is about six inches .decps At the opposite end of the box 13 is an elongated wrought-iron trunk, I, for carrying oil the dust after it passes through the screen K. This trunk is shown in fig. 1, rather shorter in proportion than we make it, as it is found that the blast is less obstructed and the dust passes through the screen better when the trunk is long. The trunk is contracted to a pipe, J, about ten or twelve inches square, where it enters the first collecting box M, on the floor below. I This box is about four feet square, of wrought iron, and it has a pipe, L, in its centre for the escape of the blasti This pipe has a bonnet, O, secured to its top by rods, so that the blast enters the pipe L, as shown by arrow This'pipe passes through the bottom of the box, and enters a similar box,-N, on the iloor below. The blast passes out from this box by aspipe, P leading upwards into' t'hc atmosphere. A steam pipe, having a rose,- S, on its end, passes into the pipe to saturate the dust. T is a pipe for drawing oil the water which may accumulate by the condensation of the steam. One

'side of these boxes M N should be removable, so as to clean out tne dust which oollccts'inthem periodically".

These pipes, J L and P, are so constructed and arranged in relation to the boxes M and N, that the direct current of the air is broken and suii'uscd tnroughout the boxes, so as to facilitate the depositnf the dust. The capacity of this machine as described is about sevcnty-iive thousand pounds per day, and the dust removed aboutone thousand six hundred pounds per week. 7

"he operation of the inachineis this: The bone-black, after beingreburnt and cooled, is carried by an elevator to the top of the sugar housc, 01 to whatever floor the machine may be upon, and falls into the hopper F and through the opening g. The blast from the fan E forces the bone-black against the screen K, and all the fine dust passes through it, the larger particles collecting at the bottom on the door d, which is opened just suiiicientiv. to allow it to escape; it there falls into a wagon, on rails, and is thence conveyed to the filtering pipes. The dust passes along trunk I down pipe J into box M, where the heaviest collects; the finest passes through pipe L, where it is saturated with steam, and falls to the bottom of box N; the blast then escapes by pip-e1 to the atmosphere almost free from dust.

What we claim as our invention, and desire to secure by Letters Patent, is-

1. We claim the box B, with its diaphragm screen K, openings 9 and d, in combination with the blower E, and trunk I, when constructed and arranged substantially as described.

2. We claim the dust-collecting boxes M and. N, constructed and arranged substantially as described.

3. We claim the combination of the blower E, diaphragm box B, trunk I, and collecting boxes M and N,

constructed and arranged substantially as described.

RICHARD FICKEN,

a FIELDING L. WILLIAMS.

Witnesses:

Enwn. BROWN, P. HENRY PHILIPS.

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