US Patent: 228,186
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| Cotton-Belting and the Process of Manufacture
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Patentee:
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| Maurice Gandy (exact or similar names) - Liverpool, Lancaster County, England |
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Patent Dates:
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| Applied: |
Sep. 10, 1879 |
| Granted: |
Jun. 01, 1880 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
My invention consists, first, of am' improved cotton belt; second, of an improved mechanical process of making a cotton belt. The belt consists, first, of cotton canvas or duck composed of warp stouter than the weft, both warp and weft being hard-spun and the canvas hard and tight woven; second, of cotton canvas or (luck thus made folded anti united by longitudinal rows of stitching and stitched under tension; third, of cotton canvas thus made, folded, and' stitched. saturated with linseed-oil; fourth, of cotton canvas thus made, folded, stitched, and saturated with linseed-oil, pressed and stretched until it is hard, even, and rigid, b)y which the belt is rendered insensible to the atmospheric changes and nonelastic. The method or mechanical process of making the belt consists, first, of folding the canvas upon the line of its warp, either in a machine or by hand, to the thickness desired; second, of stitching it by a suitable machine upon the line of its warp with as many rows of stitching as may be necessary to thoroughly unite the folds or plies of canvas, tile stitching being done while the belt is under tension between a holder and a pair of feed-rollers; third, of pressing the belt in a series of calendar-rollers until its surface is flat and even and the several folds or plies of canvas are forced hard upon each-other; fourth, of stretching the belt in the operation of pressing it until its tensile elasticity is practically exhausted and the liability of the belt to stretch in use is removed.
Claim:
As an improvement in the mechanical process of manufacturing canvas belts, the following steps in succession, viz: first sewing the fabric while under tension to prevent the stitching from breaking when. the belt is stretched; then saturating it with oil to make it proof against dampness; then drawing it through stretchers and between rollers, to stretch the belt and force the fabric full of oil and make the belt hard, rigid, and smooth. The improved article of manufacture consisting of a hard, even-surfaced, rigid, impervious, nonelastic belt composed of cotton canvas or duck having its warp-thread larger than the weft, both warp and weft being hard-spun, the fabric tight-woven and folded, stitched, and saturated with linseed-oil. |
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