A practical treatise on coach-building historical and descriptive : $b Containing full information of the various trades and processes involved, with hints on the proper keeping of carriages, &c.Burgess, James W.
History
A practical treatise on coach-building historical and descriptive : $b Containing full information of the various trades and processes involved, with hints on the proper keeping of carriages, &c.
Burgess, James W.
Carriage and wagon making; Carriages and carts
“In running the wheels with a ‘traveller,’ a wedge must be driven in
one of the joints of the felloe for the purpose of tightening the
other joints in the rim. Then get the length of the felloe, and in
running the tire cut it ⅛ inch shorter than the rim measures. In this
explanation we are supposed to have steel tire, and we have a kind
of steel tire now that is very high and difficult to weld, and there
are many smiths that will profit by this lesson if they attend to the
precaution we give. This tire steel will not stand as heavy heat as
even cast steel, and if it is over-heated in the least it will crack
or break in two while hot.
“There is one peculiar fact connected with it that we find in no
other kind of steel, and that is this: it is apt to slip, however
good the heat, and to obviate this, after scaffing the ends down
to a sharp edge, make a rather sharp lap, and while hot take a
sharp-pointed punch and punch a hole nearly through both laps, and
drive in a sharp pin made of ³⁄₁₆-inch steel wire and ½ inch long.
This will not show on the outside of the tire when on the wheel,
neither does it weaken the tire like a rivet. We have often seen
tires broken where the rivet went through.
“In welding, first have your fire perfectly clean, the coal pretty
well charred, and the fire hot, but rather small, for the smaller the
fire, if hot, the less it will waste your tire each side of the weld;
have the borax charred; put a little on the weld while hot, pull the
fire open with the poker and place the lap in the hottest part; roll
a few pieces of coked coal on the weld, blow steadily, carrying your
tire back and forward through the fire, or stop the blast a moment
until the lap is heated alike all through; take it out and weld with
hammer and sledge. With this precaution you will never fail getting
a good welding heat, and need not upset your tire before welding. If
your tire is upset before welding it makes the lap so much thicker
that before it can be heated through alike there is a liability to
over-heat, and waste away the tire on each side of the weld.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account