US176477A - Improvement in scrapers for lamp-black apparatus - Google Patents

Description

P. NEFF.

SCRAPERS FOR LAMP BLACK APPARATUS.

No.176,4=77. Patented Apri125,1876.

WITNESSES 610M I By NJEI'ERS, PHOTO-LITHOGRAHER, WASHINGTON. D c.

UNITED; STATES PATENT OFFICE.

rnrnu N FF, OF GAMBIER, OHIO.

' IMPROV MENT INIS'CRAPERS FOR LAMP-BLACK APPARATUS. A

Specification forming part of Letters Patent No. 176,477, dated April 25, 1876; application filed September 3, 1875.

To all whom it may concern:

Be it known that 1, PETER NEFF, of Gambier, in the county ofKnox and State of Ohio, have invented certain new and useful Improvements in Manufacturing Lamp-Black; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, whichv form part of this specifica tion.

It is necessary, or at least very desirable, in the manufacture of damp-black, that the surfaces upon which the deposits of lamp-black are made may be provided with brushes or cleaners to readily and'quickly remove the deposits. These cleaners or scrapers, if they are made rigid in character, will not readily conform to the inequalities :of the surface and successfully remove "the deposits. It is important in machinery for the manufacture of lampblack that such brushes or cleaners should be provided, because the surfaces are to a greater or less extent subject to unequal heating by the flame which is intercepted by the surfaces, which is liable to cause local warpingor derangements of the depositing-surtaces' With such end in view my invention consists in vertical spring-pressed metallic scrapers, having flanged working extremities, andloosely hinged to opposite sides of a'supportin g cross-bar, in rows aflbrdiug alternate space intervals between their respective scrapers.

In the drawings, Figure l is a side elevation, and Fig. 2 a plan view.

A is a scraper of sheet-metal construction, and extending verticallyupward from its supporting connection on the rigid cross-pieceB. It is hinged loose and free at its'engagingpoint, so that while firmly secured it yet admits of an easy reciprocating movement in a plane at right angles to the longer diameter of the cross-bar. The upper or working extremity of the scraper flares out squarely on either side thereof, so as to present a plane surface to. the face of the depositing-surface. It is also thus provided with a double-edged cleaning extremity. A spring, 0, finding base engagement in the cross-piece, is brought forward and up, so as to bear'against said crosspiece as a fulcrum, forming a lever of the first order. It engages in any suit-able manner with the upper extremity of the scraper, and acts upon it as the weight to be operated.

It is apparent that the character of the depositing-surface is immaterial to my invention. It may be either concave, convex, flat, with depending caps or guards at its edges, or any other suitable form employed in the manufacture of lamp-black. This scraper may be at- ,tached to a car, which car is made to traverse on suitable ways beneath or adjacent to the depositing-surface. In such cases there should be some suitable spring-work for pressing the scraper snugly against the surface.

If the surface be concave or convex, or of any other peculiar shape, then of course the scraping-edge may be made to conform therewith.

The scraper, it will be observed, is located upon.a suitable support, B, and a spring, (3, serves to press the scraper against the surface.

As before stated, these scrapers may be employed upon suitable traveling cars, so as to travel beneath the depositing-surface with the said cars, in order that the deposits, as scraped from the surface, will fall into and be collected by the car; but it is not absolutely necessary, as it is manifest that if there be a common receptacle beneath the burners, into which the lamp black may fall, these scrapers with out the car may be caused to traverse beneath and in contact with the surfaces, scraping 0E and dropping the deposits into the common receptacle below.

It is immaterial with what character of lam pblack apparatus these scrapers are employed. They may be either employed with apparatus where the burners are erected beneath the depositing-surfaces, or where the burners descend from above, or where they project simply through the depositing-surface from behind.

Where the scrapers are employed in connec tion with a car, the car should be made to traverse the length of the depositing-surfaces by means of wire to draw the same; or if a car is not employed, then similar wires may be attached directly to the brushes or scrapers themselves, as no injury will result to them by coming under the influence of any burner,

Scrapers or brushes of the nature herein described will serve to remove the lamp-black without polishing it against the surface. It is, therefore, in a proper condition to be bolted readily through a proper bolting-cloth.

This efi'eot is only produced by brushes or scrapers that will yield and prevent the polishing or caking that would interfere with proper bolting.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Spring-pressed metallic scrapers loosely hinged to opposite sides of a supporting cross bar, in rows having alternate space intervals PETER NEFF. Witnesses E. CLIFFORD NEFF,

D. L. FOBES.

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