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Патент USA US2405622

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Aug‘, 23, W46.
V
w. THOMAS
2,405,622
.PLACER MINING MACHINE
Filed Sept. 29,v 1944
4 Sheets-Sheet 1
Aug- 13, 194% -
‘I
‘ "
W. THOMAS
PLACER MINING MACHINE
-
-
2,405,622.
Aug, 33, 1946.
w. THOMAS
PLACER MINI-N6‘ MACHINE
Filed Sept. 29, 1944
4 Shéets-Sheet 5
3mm
W. Thomas
Aug. 33, 346;
w. THOMAS
2,405,622
PLACER~ MINING MACHINE
Filed Sept. 29, 1944
4 Sheets-Sheet' 4_ “
w,
130
I5
Patented Aug. 13,1946
2,405,622 '.
UNITED STATES PATENT OFFICE
. 2,405,622
PLAQER MINING MACHINE
William Thomas, San Francisco, Calif.
I
°
Application September 29, 1944, Serial No. 556,419
3 Claims. (01. 262-2)
2
This invention relates to new and useful im
provements in mining machines and. more par
ticularly to a portable placer mining machine.
digger generally referred to by numeral 1 I, by way
of a drive chain I 2.
Numeral l3 denotes a post rising from the plat
form 5 and swivelly mounted at the upper end of
this post l3, as at M, is the inner end of an elon
The principal object of the present invention
is to provide a mining machine whereon the sluice
box is adj ustably mounted so that it may be swung
to any position in order that tailings may be di
rected away from an adjacent stream or other
body of water, as the dumping of tailings in nat
ural waters is forbidden by law in most states.
Another important object of the invention is
to provide a portable placer mining machine
which can be used to treat material delivered to
the machine or as a digger for digging into banks
or other raises of earth which might be considered
10
gated inclined sluice box l5.
Along the bottom of the sluice box l5 are min
eral catching ripples l6 and the lower end of
this box I5 is opened to permit the discharge of
tailings.
'
.
When the sluice box I5 is, swung laterally, a
support generally referred to by numeral I‘! is
employed for supporting the outer end portion.
This support consists of a pair of upwardly dis
15
-
posed and slightly converging posts l8, l8 braced
Still another important object of the invention
by horizontal members I9, 23 and 2 I. Cross
members 22 are also provided for further bracing
as “pay dirt.”
is to provide a machine of the character stated
the support.
wherein the parts operate coordinately and in
a positive acting and foolproof manner; ,
p
_
A further object of the invention is to provide
a machine which can be readily adjusted in order
that its various operating parts may be set to
accommodate the conditions of the terrain.
Various other important objects and advan
tages of the invention shall become apparent to
the reader of the following description.
In the drawings:
Figure 1 is a side elevational view of the ma
chine showing the sluice box directed forwardly
of the digger.
Figure 2 is a transverse vertical sectional view
taken substantially on line 2—2 of Figure 1.
Figure 3 is a top plan view of the machine.
Figure 4 is a fragmentary enlarged detailed
sectional view taken substantially on line 4—4 of
Figure 3.
Figure 5 is a vertical sectional view taken on
line 5_5 of Figure 2.
Figure 6 is a fragmentary detailed sectional
view showing the sluice box and adjustable sup~
port therefor.
Figure 7 is a sectional view through the strainer
end of the water induction hose.
‘
Referring to the drawings wherein like nu
merals designate like parts, it can be seen that
the machine includes a truck made up of a wheel
supported platform 5, the platform 5 being sup
ported by wheels 6. This truck is driven by a -,
motor and behind the motor is a cab ‘l for the
driver when the machine is being moved from one
place to another.
Mounted on the platform 5 is a power plant 8
for driving a pump 9 by way of a belt Ill, and a
20
,
The horizontal member 2! at the upper end of
the support is situated somewhat below the upper
ends of the posts l8, 88 so as to utilize the upper
ends of the posts l8, l8 as guards for preventing
_ displacement of the sluice box‘ I 5.
(See Figure 5.)
On the cab ‘l is a support for the sluice box
'- 55 when the sluice box is disposed over the cab ‘
in the manner shown in Figure 1. This cab at
tached support consists of an elongated plate 23
having one end portion disposed upwardly and
outwardly to form a sluice box rest 24 and then
?anged upwardly as at 25 to serve as a guard to
prevent displacement of the sluice box.
The other end of the bar 23 is bent upwardly
and laterally as at 26 to de?ne a rest and hori
ber 21 ?rmly secured in an adjusted position by
a bolt 28 and nut 29.
(See Figure 6.)
Assuming the machine is being used beside a
stream or body of water 30,,a tube 3| extending
from the intake side of the pump 9 can be low
ered into the body‘of water 30 and it is preferable
that this tube 3| has a strainer head 32.
On the outlet side of the pump 9 a hose 33
extends to connect to a nipple 34 projecting
through one side wall of the sluice box IE at the
upper end thereof, as clearly shown in Figure 1.
The digger I I consists of a frame 35 having a
shaft 36 horizontally disposed through its upper
portion and a shaft 31 horizontally disposed
through its lower portion. On these shafts 36, 31
are sprocket wheels 38, 39 respectively over which
are trained endless chains all and bridging these
chains 40 are scoops lll, each provided with dig
ging teeth 42.
(See Figure 4.)
-
The upper end of the digger ll terminates over
2,405,622
the upper end of the sluice box l5 as is shown
in Figure 1.
A bar 43 is pivotallyv connected at its upper end
as at 44 to the frame 35 and its lower end is
adjustably disposed in a tube 45, which in turn
is pivotally secured as at 46 to the platform 5.
Of course, this support 43, 45 may be a hydraulic
cylinder-piston assembly if desired.
4
While the foregoing speci?cation sets forth the
invention in speci?c terms, it is to be understood
that numerous changes in the shape, size and
materials may be resorted to without departing
from the spirit and scope of the invention as
claimed hereinafter.
Having described the invention what is claimed
as new is:
1. A’ mining machine of the character de
scribed comprising a platform, a swingable sluice
box supported on the platform and a digger on
the platform for digging and elevating earth to
ing the same.
the sluice box, said platform being provided with
In the operation of the machine, it can be seen
wheels supporting the same, a truck cab mounted
that the sluice box l5 may be used in the posi
on the platform and a support on the cab for
15
tion shown in Figure 1, that is disposed over the
the sluice box when positioned in a forward di
cab ‘l or moved laterally to the position shown
rection.
in Figure 3. The principal purpose in having
2. A mining machine of the character de
the sluice box IE swingable is so that the tailings
scribed comprising a platform, a swingable sluice
discharged therefrom can be directed to a point
box supported on the platform and a digger on
other than into a stream or body of Water adja
the platform for digging and elevating earth to
cent the diggings. The dumping of tailings into
the sluice box, said platform being provided with
streams or other natural bodies of water is pro—
wheels supporting the same, a truck cab mounted
hibited by law in most states.
_
on the platform and a support on the cab for
When the sluice box I5 is disposed over the cab
the sluice box when positioned in a forward di
1 it is supported by the supporting bar 23, which
rection, and an upright support for supporting
of course can be adjusted as above explained and
the sluice boxwhen disposed in a lateral posi
Figure 2 discloses that a prop 41 is interposed
between the platform 5 and the intermediate
portion of the sluice box IE to assist in support
as is apparent in Figure 6 to take care of the
width of the box.
When the sluice box I5 is moved to a lateral
position and does not have the bene?t of the
supporting bar 23 on the cab 1, the auxiliary
support ll may be utilized for supporting the
sluice box in the proper inclined position.
Obviously as the earth is elevated by the digger
l l to the upper end of the sluice box 15, the pump
9 is operating, in as much as the power plant 8
drives both the digger H and the pump 9 and
in this Way water is supplied to the earth as it
reaches the box 15 and is washed by the water
down the sluice box and over the ripples l6 which
serve to catch the heavy particles which ordi
narily would be minerals.
tion.
' 3. A mining machine comprising a wheeled bed
' assembly, propulsion means for the assembly, a
super structure on the assembly, upright rest
units on the super structure between which and
- upon which a sluice box may rest, a support on
the bed, a sluice box supported at one end by
, the support and being rotatably mounted there
on, an intermediate portion of the sluice box
being adapted to rest upon the units on’ the
super structure when disposed longitudinally of
the bed, means for raising material to the sup
ported end of the sluice box, and a water supply
for said box.
WILLIAM THOMAS.
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