US18753A - Improvement in machine-banding - Google Patents

Description

UNITED STATES CHARLES LENZMANN, OF

PATENT OFFICE.

BROOKLYN, NEW YORK.

IMPROVEMENT IN MACHINE-BANDING.

Specification forming part of Letters Patent No. 18,753. dated December 1, 1857.

To all whom it may concern:

Be it known that I, CHARLES LENZMANN, of the city ot'Brooklyn, county of Kings, State of New York, have invented a new and useful article of manufacture to be used for the purpose of transmitting power to machinery in place of leather and other machine bands, the use and purposes of which are well known to mechanics.

My band possesses the firmness and solidity in the line ot'its width, together with the plia' bility in the line ofits length, heretofore peculiar to leather banding, and has, besides, the advantage of being unaffected by the moisture of the atmosphere or the heat of the room, or, as in case ofindia-rubber banding, by the oil and other grease from the machinery and shafting driven by it. It is. peculiarly adapted for running machinery in places where steam is escaping or where, from other causes, a great degree of heat and moisture is present. It is also well adapted for running machinery in the open air. These desirable qualities are attained in my banding by impregnating and covering with a composition (of which linseedoil anl cement, together with a slow drier, form the principal ingredients) a single \veb woven of any suitable fibrous materials in a manner peculiar in these respects, viz: First, that it shall bewoven ot' the width of the desired band; second, that the filling shall be covered by the warpthreads; third, that the filling shall beof threads of greater diameter than the warpthreads, and may be of coarser material. This isfor the purpose of giving stifi'ncss to the band in the line ofits width.

The fibrous material which I prefer to use is hemp; but for light power cotton or combinations of any fibrous materials may be used.

The composition which I prefer to use for impregnating the web and the mode of application are as follows, viz: To, say, ten pounds of linseedoil add eight pounds of Roman cement,

pulverized, one pound umber, one pound litharge, two pounds of greasy clay, and mix well together when cold, and apply slightly heated (adding as much linseed-oilasis required to keep the composition in aliquid state) with a stiff brush to the web. When well soaked into the fibers and threads of the web and dry apply the composition again until a proper surface is obtained.

The composition above stated may be varied by substituting other similar pigments to form the body of the composition \vithontessentially changing its character of pliability when dry, which is the result of the presence of the linseed-oil qualified by the drier. The threads of the web are prevented from weariugor rubbing each other by the composition, which fills up the interstices between them and imparts solidity to the combined fabric, and they are also protected from the wear of the pulley by the covering, which at the same time, under its pressure, becomes very smooth, thus affording a much greater extent of surfacecontact than would take place were the interstices not filled. M y band also possesses the advantage of combining great strength and durability with comparatively small cost ofmanufacture.

Having described my invention, I will now proceed to state what Iclailn as my invention and desire to secure by Letters Patent of the United States.

I do not claim the web or the composition separately. Neither do I claim, broadly, saturating webs woven from fibrous materials with the composition above described; but

I do claim- As a new manufacture, the machine-banding substantially as herein before described.

CHARLES LENZMANN.

Witnesses:

F. O. TREADWELL, J r., E. FRANCIS COREY, Jun.