< Detail Work 2 >
The elbows are utilized for many kinds of
tubing work. They were assembled in a special
jig. A short brass bar is cut 45 degree at
its top, and then two of them are set up
in the jig, as the photo shows. Finally they
are silver soldered and finished with files.
Assembled strainer. So as to prevent solder
joint break, I employed high temperature
soft solder for assembly (melting point 300
deg). The strainer itself is an easy turning
job.
The compressor governor is a complicated
component. Many small parts, as the photo
shows, were gathered and silver soldered.
The upper component was fixed with a copper
rivet, while the lower component was fixed
with dummy nuts. Both components were silver
soldered one by one.
The upper component was shaped with a file,
then both components were gathered with a
small screw from underneath and silver soldered
again.
As a fascinating small detail of air-controlled
train, I prepared "air hose" which
will be mounted on the buffer beam. It also
has a complicated shape. The hose itself
was made from electric wire's rubber sheath.
The chain is from a necklace. The castings
at both ends of the hose were made from many
machined parts as follows.
Machined parts for the hose tip casting.
The right hand photo shows how to machine
the main body.
Parts for the valve castings. The body has
to be bent before turning in the lathe. The
right hand photo shows the setting in the
lathe. Note a lathe gear is employed as a
balance weight.
The handle was made of brass square bar.
It was carved in relief on the rotary table,
after that sliced off by a slitting saw,
and bent in a vise.
Each component was assembled and silver soldered.
Both components will be screwed into the
hose with suitable adhesive. The hexagonal
part in the photo is a lock nut to fix the
valve onto the buffer beam.
So as to secure the chain with screws, I
added stainless-steel rings at both ends
of the chain. The rings were cut from a coil
made in the lathe as same as a coil-spring.
| TOP | BACK | NEXT |