Leather manufacture, a treatise on the practical workings of the leather manufacture; ... together with numerous ... recipes... and miscellaneous matter .. by Stevens John W

Author:Stevens, John W
Language: eng
Format: epub
Tags: Leather
Publisher: London, S. Low
Published: 1891-03-25T05:00:00+00:00

We have been jealously guarding against producing loose, open, and flanky leather, while it was on its journey through the tannery, and after being split and re-tanned with a view to further improve the flanks, we now come to the wrecker of our hopes and aspirations—the scouring machine. It may be considered as the twin brother to the England handling wheel, when improperly used ; and wherein the leather has received the needed attention in the tannery, it is a mooted question whether this branch of the work may not be dispensed with altogether, and a portion of the time and labor carried to the setting account. To produce firm and unyielding leather it must be scoured and set out firmly on both flesh and grain by machine, but to produce supple and elastic leather, that will yield to the strain of the foot, the " set" should not be entirely removed, therefore the writer would not advise scouiing or setting the leather on the flesh side, especially for the class of leather on which we are practically illustrating. After being scoured on the grain and slicked off, go over the surface with a light coat of cod and parafHne oil, equal parts, r.nd fold in book form and send them to the lofts for drying. In drying scoured leather for mill stuffing, let it be done as quickly as possible, particularly when intended for the class of stock wherein fineness of fibre and firm flanks are requisite. All of the water should be absorbed, and, as it progresses, the light dressing of oil on the grain side will replace, in a measure, the evaporation and prevent the grain from becoming crusty when dry, and will act as a preventive, when dampening the leather for stuffing, from absorbing too much water.

DAMPENING THE LEATHER.

When the leather is thoroughly dried out, weigh it up in batches of two hundred pounds each ; this amount, by the usual test, will be equal to three hundred pounds of sammied leather, or when in proper condition to go into the stuffing-wheel. Then take the leather to the stuffing room wherein it is presumed there is a tank, having steam and water pipe connections. In winter, heat the water to about eighty degrees Fahrenheit, as this will greatly aid in maintaining a more uniform temperature in the stuffing-wheel. Then fold the sides in book form and dip into the water quickly one-half of the side, flanks first; then reverse the side, dipping in the back portion, then open out the side and pile on to a table, grain uppermost, until the number of sides for each wheel is thus-

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.