Union gazette. [volume] (Corvallis, Benton County, Or.) 1899-1900, 1900-02-02

Beveled glass IL not new, but 1t Is
now far more extensively used than
formerly. Twenty years ago beycled
mirrors were comparatively rare, now
they are common, and are seen In many
shapes ana sizes. Beyeled plates, large
aaG small, and both straight and bent,
are used for various other purposes.
The process of glass beveling Is very
simple, but the work calls for skill on
the part Of the operators
The plate TO be beveled goes irst to
the rougning mill. which is a solid,
heavy steel wheel about two feet and q
half feet in diameter, set horizontally,
and turning at j high rate of speed. The
upper face. or top Of this wheel, Is
slightly rougnened. Suspended over
the wheel Is a big hopper containing
sand. which is fed down through u
spout in such quantity as may be sequir-
ed upon the top of the cough faced
steel wheel. The grinder holds the
pla-e to be ground In his hands. With
the edge TO be ground on upon the face
Of the rougEing mill; he shifts the plate
along as che glass is ground away. The
expert grinder. holding a sheet Of glass
agsinst the roughiua wheel In this man
ner, will grind a true bevel. with per-
fcctiy straight line along Its inner edge.
and he brings the side bevcis together
with perfectly true angle ut the cor
nera.
In the ronghing mill the bevel Is
wrought to shape. but its face Is rough
looking and feeling. In fact, like what
1t is. ground g,ass. The plate goes then
to the enemy wheel. also OF steel and
set horizontally, Suspended over this
wheel is a little hopper ,illed with
emery. the emery ieeding down upon
the wheel. Upon rhis wheel the rough
face of the neyei as it comes from the
roughing mil is again ground; the plate
being held in the same manner by q
grinder. And the surface is brought
nearer TO ssmoothness.
From the emery wheel the plate goes
to the smoothing stone, which Is also
set to turp horizontally. The smooth
Ing stone, which is Of an extremely
fne sandstone, is made with its upper
surface. that against which the glass is
brought, very slightly convex This
stone Is finished perfectly smooth and
1t is so fine grained that to the touch it
seems almost to be polished. A tiny
stream of water. enough to keep the
face Of the stone wet, is made to
trickle down upon II and the glass Is
held to this wheel Just as it was to the
others, and here the beveled edge is
brought down to a smooth surface. but
not polished The plate goes then to q
polishing wheel made OF wood and set
to turn vertically: the beyel edge of the
glass is held against the edge or face OF
this wooden wheel as it rapidly re-
wolves. The face OF the wheel Is kept wet
and constantly supplied with pulveriz-
ed stone. Upon this wheel the beveled
edge gets IT first polish. The glass
then takes the final step In the beveling
process. 1t goes to another wheel, also
of wood. and also turning vertically,
whose face Is Of felt The face of this
wheel also Is kept wet and it is suppfi-
ed with a fine polishing meterial called
from its color. rouge. Here. as at the
first polishing wheel, the g,ass Is held
with the bevel against the edge, or face
of the wheel. On the rouge wheel the
hevel gets its final polish and finish and
the surface Of the beveled edge, which
after the first operation was rough like
ground glass, is now as smooth and as
polished as the fat surface of the plate.
Great plates that are too big to be
held by hand are locked into frame
that can be SO moved as to bring the
edges to be beveled against wheels adj
justed for the purpose.-New York Sun.