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Патент USA US2127066

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Aug- 16, 1938.
D. R. MCCULLOUGH
2,127,066
MINING MACHiNE
Filed Aug. 25, 1936
3 Sheets-Sheet l
A iiomeys
I Aug.v16, 1938.
4 ‘D. R. MOCULLOUGH
2,127,066
vMINING MACHINE
Filed Aug. 25, 1936
64
5
3 Sheets-Sheet 2
34
‘
Invenfor
(Fa/W47R M ‘fa/1011.910
Aitorneyi
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Patented Aug. 16, 1938
UNITED STATES PATENT OFFICE
2,127,066
IVIINING MACHINE
David R. McCullough, Lost Spring, Wy0., assignor
of one-third to William 0. Widger, Harrison,
Nebr.
Application August 25, 1936, Serial No. 97,820
4 Claims. (01. 262-25)
This invention relates to mining machines and
an object of the invention is to provide a mining
machine particularly adapted for use in mining
coal.
A further object of the invention is to provide
a mining machine particularly adapted for the
undercutting of the coal within the mine.
The invention together with its objects and
advantages will be best understood from a study
of the following description taken in connection
10
with the accompanying drawings, wherein
Figure 1 is a top plan view of the machine
showing the conveyors and saws associated there
with.
Figure 2 is a detail view showing certain parts
15
in section and illustrating particularly the man
ner of anchoring the runners at the desired posi
tion within the mine.
Figure 3 is a front elevational view of the car
20 riage with the tools and other parts omitted.
Figure 4 is a rear elevational view of the car
on its free end with a head l2 having an anchor
ing spike l3 integral therewith and adapted to be
driven into the top wall or ceiling 1.4 of the mine
as shown. Thus through the medium of the
jacks [0 the runners 5 and ‘bar ‘I are secured in 01
assembled relation and the runners 5 held at the
desired position within the mine.
Extending between the runners 5 is a slide indi
cated generally by the reference numeral [5 and
the slide I5 is adapted to be shifted longitudinally 10
with respect to the runner 5.
The slide l5 comprises a base plate I6 formed
on the under side thereof and inwardly from its
respective opposite end with grooves H to ac
commodate the runners 5 as will be clear from 15
a study of Figures 1, 5 and 6.
Figures 5 and 6 are detail sectional views taken
substantially on the lines 5-5 and 6—6, respec
25 tively of Figure 1.
Figure '7 is a plan view of one of the end bear
mgs.
Figure 8 is a plan view of the ball equipped
end of an adjusting screw.
Figure 9 is a sectional view through the saw.
‘
plate l6 as at 18 are end plates l9 which sup
port therebetween a pair of rails 20. The rails
20 are secured at their ends to the plates l9 as
at 2|.
riage.
>
Rising from the base plate H5 at its respective
opposite ends and suitably secured to the base
‘
Mounted on the slide 15 for movement longi
tudinally therealong is a carriage indicated gen
erally by the reference numeral 22.
The carriage 22 comprises a top plate or plat
form 23 to the under side of which is secured as
at 24 a relatively narrow block 25._
Secured to the block 25 at intervals as indi
cated at 26 are a plurality of spaced bearing
stantially on the line i l-l I of ‘Figure 1.
Figure 12 is an elevational view of the coal cut
blocks including intermediate bearing blocks 21
and end bearing blocks 28. The bearing blocks
21 and 28 extend transversely of the platform or
plate 23 and the plate 25 and are provided in
their upper side with grooves 29 to accommodate 35
the rails 20 of the slide l5 as is perhaps best il
ting bit.
lustrated in Figure 6.
Figure 10 is a transverse sectional view through
the saw and taken at right angles to Figure 9.
Figure 11 is a detail sectional view taken sub
Figure 13 is a similar view of a conveyor auger.
Referring to the drawings by reference it will
be seen that the mining tool comprises a pair of
runners 5-—5 formed of strap metal turned up
at their respective opposite ends, or of some other
suitable material.
‘
The runners 5 are respectively provided at their
respective opposite ends with holes 6.
A transverse bar 1 is adapted to extend be
tween the runners 5 at either end of the runners
and at its respective opposite ends the bar ‘I is
provided with openings alined with the openings
6 to accommodate the spikes 8 provided on the
50 tubular sections 9 of a pair of anchoring jacks
indicated by the reference numeral In.
As shown in Figure 2 each of the jacks In in
clude the aforementioned lower tubular section
9 which is interiorly threaded to receive the
55 threaded end of a rod section ll that is provided
p
Also the outer bearing blocks 28 are grooved
on their outer side as at 38 to accommodate the
end plates l9 when the carriage 22 is moved to
the extreme end of the slide l5.
Also on the under side thereof the bearing
blocks 21 and 28 are grooved as at 3| to accom
modate a plate 32 that is bolted or otherwise
secured to the respective bearing blocks as at 33. 45
Thus in this manner are the bearing blocks 21
and 28 ?xedly secured relative to one another
and the desired spacing therebetween.
Journalled in each of the bearing blocks 21 is
a shaft 34 while journalled in each-of the bear
ing blocks 28 is a shaft 35.
Each of the shafts 34, 35 is suitably provided,
and in a manner as shown in-FigureG, at one
end with a sprocket wheel 3'! and adjacent a
relatively opposite end each shaft 34 is provided
2
2,127,066
with a sprocket wheel 36. At the ?rst named
end each of the shafts 34, 35 is squared as at 38.
Also each shaft 34 is in driving engagement
with an adjacent shaft 36 through the medium
of an endless chain 39 trained over the sprocket
36 of the respective shafts.
medium of which the bits are engaged with the
squared ends 38 of the shaft 34 or 35 as may be
found desirable.
The ?rst operation is of course the boring of
one or more holes in the coal since resort is had $1
to the coal cutting bits 51.
In using the bit 5'! drive is transmitted from
the motor 48 to the shaft 34 and from the shaft
34 to the shaft 35.. Before setting the motor 40
Suitably mounted on the top plate or platform
23 of the carriage 22 is an electric motor 40 the
armature shaft of which is equipped with a
sprocket 4| over which is trained an endless chain in operation the carriage 22 is of course ?rst
42 that is also trained over the sprockets 36 ‘only. ; shifted to the desired position through the 10
the shaft 34. Thus it will be seen that driveis} medium of the screw 43. When the carriage 22
transmitted simultaneously from the motor 48¢ ’ has thus been positioned at the desired adjust
to the shafts 34 and from these shafts 34 to an
15 adjacent shaft 35.
,
For shifting the slide l5 on the runners 5 and
the carriage 22 on the slide l5 there is provided
a single adjusting screw or threaded" shaft 43.
ment the screw. 43 is connected with the slide l5
for slowly feeding the slide l5 forwardly as the
cutting 'bit 5'! is worked into the coal.
_ _After the boring operation is completed the bits
5'! are removed and conveyors such as shown in
The threaded shaft 43 at one end isiprovidedig; Figure 1-3 and indicated by the reference numeral
with an operating handle 44 and at its respective 59 are'substituted therefor. The conveyors 59 as
20
opposite end with a substantially ball head 45';
shown in Figure 13»‘ are provided at one end with
For connecting thelast mentioned end‘ to the squared pocketed portions 68 with the attach
shaft 46 either with the slide l5 ‘or’with the ment of the conveyors to the shafts 35. During
carriage 22 there is provided a shank 46 having the reaming of the holes previously bored. the
25 on one end thereof a socket 41 through the
slide I5 is advanced'by ‘the turning of the screw 25
medium of which and a ball 45a suitable con
43 and after the reaming operation. has been
nection is provided between the'screw 43 and completed, screw 43 is turnedin a. reverse direc
the shank 46.
30
‘
For connecting the shank 46 with either end of
the carriage 22 the top platev orjplatform 23 of
said carriage is provided in‘ therespective oppoé
site end edges thereof with‘ a slot 48 to receive
the free end of the'shank 46'which endis aper
tured' to aline with alined openings 49} provided
35 in the plate‘23 above and below each of theslots
48 whereby to accommodate a coupling pin 58.
Further there is provided an‘ internally
threaded sleeve- 5l~ having'i'apertured attaching
?anges 52 throughv the medium of which and
4-0
pairs of sockets 53‘ provided in-the upper end’ of
the end plate l9 of slide I5‘the sleeve‘ 5| may be
secured on the upper edge of a selected end ‘plate
I 9, keeper pins 54 passing through the. aper
tured ?anges 52 and‘ into the socket 53 to posi
45 tively secure the sleeve 5|‘ on the selected end
plate
l9.
,
p
.
_
Thus it will be seen‘. that with the shank‘ 46’
connected with the carriage 22 and the, sleeve 5!
mounted on one of the end plates 16 as; for‘ ex?
50
ample shown in Figure; 1, the carriage 22 may be
shifted lengthwisev to the slide I 5’ in, either direcr
tion by the turning of‘ they screw 43 inthe proper
direction.
55
.
-
..
..
.
‘
To utilize the screw_43,cshank 46 and sleeve,,5.|.
for shifting the slide Il5. along the runners 5, the
plate 1 is provided with a series of’ relatively
spaced openings 55 through the medium of which
and the aforementioned pins 5.4 the sleeve 5|
may be secured‘ in a detachable manner'ton the
60 plate 1 at the desired adjustmena.
_
f
,
Also one of the rails 28 is provided at intervals
with slots 56 andinto a selected'one of saidslots
the free end of the shank. 46 is passed antise
cured through the mediumof the aforementioned
65 coupling-pin 50, the said one rail 28? being pro
vided above and‘ below each of the. slots 56 with
alined' openings 51. Thus; for example; with .the
screw 46 connected as shown‘ in dotted linesin
Figure 11 to‘ the slide I5, said screw maybe
70 turned in either direction for advancing or re-,
tracting said slide l5. .
v
_
In using the machine resort is ?rst had toithe
coal cutting bits 51. The bits 51v are such as illus
trated in Figure 12 being provided at oneend
with' squared socket portion 58 through the
tion for retracting the slide 15. '
After a hole has been bored" the operation of
cutting a- slot or kerf is undertaken. To this
end there are provided- saws EI' and conveying
,
augers' 58., hereinafter more fully referred to,
the saws 6 l' acting‘ to cut the kerf or: slot andthe
conveyors 59 acting to remove the cuttings re
sulting from the sawing operation, the convey
ing augers 59 trailing'the saws 6|, as is believed to
be‘ apparent.
‘
As shown, each conveying auger 59 is provided
at one end thereof with a socket‘ 6.8'for engage
ment with one end of a shaft‘ 35.
v
'
Each of the saws ISL-as best shown in Figures
a
9 and 10, comprises a shank or core rod 62*‘ on
which are" disposed-in alternation circular saw
blades 63 andraker disks '64,: the saw blades 63
and raker disks 64 except for the outermost saw
blade 631 and raker disk 64; are provided with ‘
keys 65 that engage in a way or groove 66 in the‘
shank or core rod 62 for’securing- the mentioned
saw blades and raker diskszon- the-shank or core
rod 62 to turn‘therewith.
'
'
‘
'
The outermost saw blade 63‘and raker diskj64
are riveted’ or otherwise secured together as at 61
and are‘provided with threaded openings through
the medium of which said outermost blade and
raker ‘disk are screwed,‘ as 'a unit, onto the
threaded end 62a of the shank or core rod 62 as
shown in Figure 9Q
'
'
‘ As a means of locki'ng'th'e assembled outermost
blade 63' and raker disk 64'Iasa unit on the shaft
or core rod 62 there is provided a lock screw 68
as shown in Figure 9}
‘
‘
' V
'
60
_The aforementioned blade 63‘ and raker disk
64 are clampedon the shaft 62'between the afore
ientioned innermost‘ assembled blade 63 and
raker disk 64 and a nut 69 threaded on the large
diameterof the shaft or‘ core rod 62v as shown in 65.
Figure 9. The large diameter of the shaft or
core rod 62 is provided with a socket 18 through
the medium of which the shaft or core rod is
attached to the squa'redend 38 of a shaft 34. "
From the above‘i't‘will be a; parent that after 70
the initial boring operation saws BI and conveyors
58 are‘brought into‘ operation to cut the kerf,
the saws ‘cutting the kerf, and the conveyors,
trailing the saws, ‘conveying the cuttings out
75
3
2,127,066
wardly of the kerf as it is being so out. Obvi
ously, to advance the saws BI and the trailing
conveyors 59, carriage 22, through the medium of
the screw 43, is moved lengthwise along the slide
14. The conveyors 59 thus removing the cuttings
from the kerf as it is being thus cut will prevent
the saws from becoming clogged, thus insuring
smooth operation of the saws during the cutting
operation.
In connection with the use of the invention it
10 may be further explained that when drilling into
soft coal the rotary tool or tools 51 may be of a
diameter slightly larger than the diameter of the
saws 6| so that immediately following the drill
ing operations performed by the rotary tool or
15 tools 51 the saws 6| are brought into use for
.
2. In a mining machine of the character de
scribed, a pair of runners, a bar extending be
tween and connected to the runners, longitudi
nally extensible anchoring jacks having lower
ends engaging said bar and runners in a manner
to secure the bar to the runners and to anchor
the runners in set position in the mine, a slide 10
mounted on and extending between the runners,
and a tool carriage mounted on the slide for
movement therealong and in a direction at right
angles to the direction of movement of the slide
15
relative to the runners.
3. In a mining machine of the character de
scribed, a pair of runners, a bar extending be
tween and connected to the runners, longitudi
it may be necessary to use rotary tools such as
ends engaging said bar and runners in a manner 20
to secure the bar to the runners and to anchor
the runners in set position in the mine, a slide
mounted on and extending between the runners,
and a tool carriage mounted on the slide for
movement therealong and in a direction at right 25
20 accomplishing
the initial boring operation.
Under such circumstance, after the boring by the
tools 51 has been completed, conveyors 59 of a
diameter slightly larger than the saws 6| are
resorted to for reaming out the holes in a manner
25 to enlarge the diameters thereof so that the holes
will then be of a size to accommodate the saws
BI which are subsequently used for cutting the
kerf.
From the above it will be seen that I am pro
viding a machine for use in coal mining and that
the same will function admirably for undercut
ting the coal.
35
each pair of shafts.
cutting the kerf.
On the other hand when cutting into hard coal
tools 51 that are of relatively small diameter for
30
the carriage, and chain and sprocket means con
necting the shaft of the motor with one shaft of
What is claimed is:
1. In a mining machine of the character de
scribed, a slide adapted to be mounted on runners
for shifting movement along the runners and
relative thereto, said slide including a pair of
rails, a carriage mounted on the slide and en
40 gageable with the rails to move therealong, a
plurality of tool shafts rotatably mounted on the
carriage and arranged in pairs, each of said tool
shafts being provided at one end for the attach
ment of a tool thereto, chain sprockets connect
ing the shafts of each pair, a motor mounted on
nally extensible anchoring jacks having lower
angles to the direction of movement of the slide
relative to the runners, and an adjusting screw
adapted to be connected with the slide and the
carriage for shifting the carriage relative to the
slide, and also adapted to be connected with said 30
bar and the slide for shifting the slide relative to
the runner.
4. In a mining machine of the character de
scribed, a pair of opposed runners, a slide
mounted on the runners for shifting movement 35
toward and away from the work, a carriage
mounted on the slide to move in a direction at
right angles to the movement ofv the slide, a saw
and a conveying auger mounted on the carriage
and extending laterally from one side of the car 40
riage in spaced parallelism, and means mounted
on the carriage and having driving connection
with said saw and conveyor for simultaneously
rotating the saw and conveyor.
DAVID R. McCULLOUGI-I.
45
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