Scientific American Supplement, No. 358, November 11, 1882Various
Science
Scientific American Supplement, No. 358, November 11, 1882
Various
Science -- Periodicals
On cabs I use the same priming as on tanks, let stand five days, putty
nail holes and "plaster putty" hard wood, and give two coats lead, mixed
as follows: 100 pounds keg lead, 19 pounds Reno's umber, 3½ quarts
japan, 1½ quarts varnish, 6 quarts turpentine. I call this "No. 2 lead,"
and allow 24 hours between coats, then apply a coat of No. 2 "rough
stuff" at 7 A.M. Rub down at 10 A.M. two coats color, and varnish before
6 P.M. Striped and lettered next day and finished on the following day
if it is not taken away from me, and put on the engine. Time, eleven
days. Can be done in five days.
On castings, same priming, putty and "No. 2 lead" if time is allowed. I
use rough-stuff No. 2 on all flat places, rub down and give two coats
of No. 2 lead. Also painting inside of all castings, and sheet iron
casings; and inside of boiler jacket, with "Prince's metallic."
All castings I get ready for color before they are put on the
locomotive, except such as have to be filed or fitted on outside edges.
As there is very little time given to finish a locomotive after the
machinists get through, I usually finish it _the day before it is done_.
As a sample (one of many), an 8--17--C. locomotive boiler tested
Saturday afternoon, August 12, boiler painted, with 120 pounds steam
on, wheels put under, boiler covered, cab put on, and finished Monday,
August 14, at midnight (did not work Sunday); primed, puttied, colored,
lettered, and varnished same day. After 10 o'clock at night the painters
have a chance, and it is their glorious privilege to work until morning.
The machinists have all the time there is, the painters have what is
left.
So much for the ordinary way. For a quicker method of painting tanks I
send a sample marked No. 1. Time, including first coat varnish, five
days. Priming, 1 pound Reno's umber to 2 quarts pellucedite; two coats
rough-stuff, composed of umber and pellucedite, rubbed down, and thin
coat of pellucedite; one coat drop black, one coat rubbing varnish;
exposed to weather (southeasterly exposure near salt water) March 12,
1879; revarnished one coat, finishing September 1, 1879; remained out
until March 22, 1880. Total exposure, one year and one and a half weeks;
thrown around the shop until August, 1882; has been painted three years
and six months. This is not a sample of good work, but of quick and
rough painting. Considering the time and usuage it has experienced it
has stood much better than I expected, though I cannot safely recommend
that kind of painting when any other can be followed.
Sample No. 3--Time, including two coats varnish, 14 days. Painted as
described in first part of this article; exposed in same places as No.
1, April 3, 1880; total exposure, six months; has been painted two years
and five months.
Public-domain text, read in full here on John Shaqi.
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