The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1910-08-12
RAY AND CHINO
ORDER vANNERS
Largest Vanner Contract Ever
Placed Goes to Local Ma
chinery House.
CLOSE TO QUARTER
MILLI0N-D0LLAR DEAL
IsbeIl Vanner Will Do the
Work for New Mines of
Arizona.

The largest order ever negotiated lol
vanners has been successfully corralled
by the Gallagher Machinery company oi
Salt Lake City from the Ray Consolidated
and Chino Copper companies OF Arlzona
II was learned on Thursday that over lool
IsbelI vanners had been contracted for
the consideration for the machines be-
Ing somewhere in the neighborhood OF
quarter of a million dollars. The Galigher
company will have the machines faori-
Gated Immediately in Chicago. The pur-
chase of this large amount of equipment
is not only a substantial recognition OF
the merits Of the Isbell type Of vanners.
| of which the Gallgher company Is the sole
agent and manufacturers, but 1t rs mat ,
ter Of congratulation that Salt Lake cry
| can provide machines on the large scaie
| contemplated.
The Isbell vanner is the invention OF
]. f, Isbell, who has had q wide expert
ence in the milling of porphyry ores, The
| last ten years have seen a great deal OF
/ activity in the development OF the per-
cussion table and concentrating machines
OF the table type, yet machines OF the
endless belt type have been neglected.
The commerclalizing Of the great: low
grade porphyry deposits of Utah, Nevada
and Arizona which require fine grinding
and slime treatment, has given fresh
stimulus to the belt machines, and the
profession realized that while the per
cussion table has become Indispensable
for the treatment of sands the vanner
still remains without peer for the treat
ment OF shines.
the Frue vanner, and the important part
II has played IN the treatment OF ores.
The fundamental principle OF the lsbell
machine is substantially. the same as IN
all vanners, consisting of an endless rub
Der belt with a side shake but II Is
In Its mechanical arrangements and de-
tails of construction and Its adaptability
TO modern mill conditions that dineren-
tiates 1t and has given 1t the preference
In the Arizona mills now under construc.
ton. The following brief description Will
prove of interest.
The essence of the Isbeu design is a
foundation girder of heavy channel Irons.
placed beneath the center and at right
angles to the length Of the machine. This
fastened TO which by suitable brackets
are two long leaf steel springs, one on
each side OF the machine the extreme
ends of which support the shaking frame.
To this shaft also is secured the bear
ings carrying the head motion with its
shaft pulleyS and eccentric and the side
arms which carry the water box and the
worm wheel belt traversing gear; this
shaft therefore becomes the axis to which
the entire mechanism Is attached and
around which the whole machine Is de-
veloped,
The niceness and utility of the design
is at once apparent for it makes the
machine perfectly self-contalned, the
four supporting, posts common to other
ton Of the machine reduced to the sim
pie act OF bolting the foundation girder
20 the floor. The girder being also In line
with the vibrations gives rigidity TO
the machine when in operation impossi-
bic to obtain with the corner post con-
struction
The inclination is changed by tipping
the whole machine with the transverse
shaft as the center OF the movement.
A short cast iron stand set close TO the
head end and clamped to the projecting
arms hold the machine firmly to the re-
quired grade. The use OF the long side
steel leaf springs for carrying the shnk-
Ing frame is unique in vanner construc-
ton and Is a device for this purpose i'm
great strength and positiveness with the
necessary side hexibility and refined
levelins adjpstments At any given
slightest jar or vibra ton and Is truly
horizontal, enabling the heaviest loads
to be carried without any stopping over,
impossiblity. There are no struts or
pin and eye joints to wear out or to
get out of place. In addition to support
ing the shaking frame they also serve:
independent OF the external braoing OF
the shaking frame to maintain 1t per-
fectly square and In alignment. no mat
ter how uneven the tension on one side
Of the belt may be, For adjustment
simple set screw and lock nut at each
back end adjusts the rear roller into per-
feet accord with the front one. These
leaf springs are made of common un-
tempered quarter-inch boiler plate, and
nfter continuous service OF over twelve
months with the first machine ever built
they show even under the most severe
conditions as TO length Of stroke and
speed no signs OF weakness or crystalliZa-
ton whatever.
The Isbell pulp distributor consists OF
two decks The upper one is similar to
the regular Frue vanner distributor and
slopes towards the head roller; the lower
one Is Immediately underneath and
slopes the reverse way. This lower deck
Is composed OF sixteen wood Stats 81
inches wide by 90 inches long spaced
inch apart and form seventeen slots
through which the pulp falls, The un-
derneath side of the deck so formed Is
roughed with saw tooth grooves over
Its entire surface so that Ine pulp is
distributed In innumerable drops over
the entire area Of 12x72 inches and is
thereby deposited on the bert without
causing the slightest disturbance of the
pulp surface.