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Патент USA US2115641

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April 26, 1938.
2,115,641
_N. D. LEVIN ET AL
MATERIAL HANDLING MECHANISM
‘Original Filed Aug. 19, 1950
3 Sheets-Sheet ‘l
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//\/ VEN TOP? 5 :
/V/'/s D. Lev/n,
_ Edward G Lew/s, '
ATT'Y
April 26, 1938.
N. D. LEVIN‘ ET AL
2,115,641
MATERIAL HANDLING MECHANISM
original Filed Aug. 19, 1930
3 Sheets-Sheet 2
April 26, 1938.
N. D. LEVIN ET AL
2,115,641
MATERIAL HANDLING MECHANISM
Original Filed Aug. 19, ‘1930
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2,115,641
Patented Apr. 26, 1938
‘I1; . U N 151' ED gf-STAT E S
ff
. OFF [C E i
' 2,115,641
. MATERIAL HANDLING ‘MECHANISM
> ~NilsY‘DLLevin and Edward. G. Lewis; Columbus,
Ohio, assignorsto The Jeffrey’ ‘Manufacturing
. Company, a corporation opt-Ohio
Original application‘ August'19; 1930; Serial No.
: 476,390. Divided and‘this application Janu
“ ary‘24‘, 1935, Serial No. 3,278
15 : Claims. » (C1. 198-8)
‘Fig; 7‘ is aside elevational view of the loading ‘
machine-with the gathering unit mounted on a
Our invention relates to trackmounted loading
machines particularly oil/the type ‘adapted’ for
pony truck for transportation along narrow and
use ‘in. coal mines. jJOne of. the objects‘of our
- invention“ is the ‘provision ‘of improved‘ and ‘el?- 5 curved‘entries in a coal mine.
"r This‘applic‘ation is a division of our co-pending
K‘ .Icient ‘means ‘ for‘, maintaining‘; in predetermined
relation withthe minetrack,‘ the receiving por- ‘ application Serial‘No. 476,390,‘?led August 19,
tion of a conveyor which isadaptedto be ad - 1930',‘ now Patent No; 1,997,590, for improvement
“justed on ,an upright axis.
‘
--in-Materlal handling mechanism, in which we
p‘ Another object of‘ the invention is to combine ' have described and‘clairned the various elements
Q with p the forward receiving, end of a swinging of the loading machine in combinatiomand more
particularly-the‘adaptation theretorvof the struc-’
‘conveyor, abutment mechanism for engaging the
ture illustratedin‘ Fig. 6 of the accompanying
. rails of a mine track to hold, the conveyor in pre~
‘determined relation withlthe .mine track while
. such conveyor isreceiving material to be loaded '
' 1i 5" into minecars.
‘ A further object of the invention is the provi
drawings; whereas the present application is di
rected to the sliding supporting shoes and the
' abutment pins associated therewith and the com
15
bination of such abutment-‘mechanism with the
sion of improved and efficient rope gearing for rope gearing for swinging» the gathering conveyor
operating a gathering conveyorby swinging the ‘(3; as‘illustrateddiagrammatically in Fig. 5.
‘g‘Referring-to the accompanying drawings and
same arcuatelyonan upright axis while deliver
particularly to Figs; 1 and 2, A- designates gen
. ing gathered material to areceiving- conveyor.
lmMore particularly it is thetobject of our-inven ‘ erally' a self-propelling truck which supports a
etion to..pr0vide apairof shoes or.,plates having ‘ receiving conveyor B-iwhich in this instance is
i pin-receivingholes carried by the receiving end ‘also'the discharge conveyor for delivering mate
, .of aswinging conveyor and. adapted-toreceive , rial to mine cars. ‘ ‘The conveyor B is mounted on
pinsinpositionto engage theqrails of amine ‘the truck A>for pivotal movement relatively
5..track to p1:event.,.lateral movement. of the con- ' thereto ‘about both vertical and horizontal axes.
‘veyor. while receivingmateriahfrom a swinging ‘ The conveyor B comprises two sections B’ and
gathering conveyor operating inadvance ofthe . B" relatively adjustable on a transverse hori
' zontal 'axis'as'will be described hereinafter.
-. mine track.
30
Other objectsot the invention ‘will-appear here
.. inaftenthe novel features and combinations be
. ing set forth intheappendedclaims.
Pivotally‘connectedupon an upright axis to the
iront‘end of the conveyor B is a gathering con
veyor C‘which, for transportation along the mine
‘ tracks; is (adaptedto be supported on a pony
' ‘In’ the-accompanying drawings,
. :Fig. 1 is a sideelevationalyiewiof the front end ‘ truck D, as'shown in Fig. '7.‘ Whenv in operating
5 oiwthe loading imachinet'showing: the-“swinging
position “off the pony'tru-ck D and on the mine
‘bottom in advance of the mine truck A, the
1; Fig. 2 is. a side Velevational' view-.of-therear gathering conveyor C may be sumped into the
coal which has been dislodged from the coal face,
; portion -; ‘of the » ‘loading. machine,- the .1. complete
loading machine being illustrated in jli'ig. Z-iand as illustrated‘ in Fig. 4. During such sumping
. gathering-conveyorsection;
1
. operation, the endless traveling conveyors of both
" Fig. 3 isian ‘enlarged plan view oflithatportion ' the sections Band C" may be operated to deliver
“of theloa'ding machine where: the gathering-‘sec _ coal to‘themine car'F as shown in Fig. 4. The
40‘ ‘Fig. l, placedsendqto end;
< . tion ;. delivers material to'the idischargeysection ;
. Fig; 4 is amliagrammatic plant view; showing. the
rope gearing may be arranged as shown in Fig. 5
when the gathering conveyor C is swung arou
ately along the mine bottom while delivering coal 45
to'the discharge conveyor B and while .the .for
:' ing ‘ operation ' by \ propelling g the entire loading
ward receivingend ofxthe latter is held against
r . machine. along the :mine track;
_: Fig; 5: is a diagrammatic plan‘view illustrating lateral movement relatively to the truck A and
’ ;.the ioperation of. the improvedqrope igearing ~act- . the {mine track E, by means of the pin abutment
50
‘i 50 ing to swing the gatheringilconveyo‘r.about a-ver- i_ lmechanism hereinafter more fully described.
Thetruck propelling mechanism comprising
1' :tical'; ‘axis. while remaining. ‘in: vdelivery communi
45~loading machine-completing a sumping, gather
‘ cation with the-receivingqconveyor;
.the flexibletransmission means between the mo~
Fig; Gris‘ aitransverse-sectional view .taken. on . toron the turntable and the truck wheels while
.thewline lie-edict Fig.- 2<,~. looking .inthe direction .4 theldischarge conveyor occupies various angular
v55.» loft the arrows; and
.positions, is described and claimed in the 00-‘ 55
22
a11ac41
pending application of Nils D. Levin, Serial No.
386,647, ?led August 1'7, 1929, for an improvement
in Pit car loaders.
As shown in Fig. 2, truck A comprises a frame
I!) supported on Wheels H and i2 mounted on
axles i3 and [4, the ?anged wheels being designed
l5 at the axis of pivotal adjustment between these
frames. The chain 44, as shown in Fig. 2, extends
around the idler pulleys 45 and 46 and thence
around the driving sheaves 4'! mounted on the
axles l3 and M of the truck. An appropriate 01
clutch 56 having clutch elements 48, 49, as shown
for travel along the mine track E. Mounted on
said frame lil is a platform having a turntable
frame [8 which is attached thereto for pivotal.
in Fig. 6, is provided for connecting the trans
movement about a vertical axis, as illustrated at
a mine track either for the sumping operation, as
[1, I9, 20 in Fig. 6. The bottom. I!) of the frame
58 contacts with the top l5 of the frame In over
shown diagrammatically in Fig. 4, or for trans
portation purposes, as illustrated in Fig. 7.
As illustrated in Figs. 2 and 6, the shaft 39
a relatively wide area, and consequently the an
nuiar groove at the pivotal connection located at
the top of the plate It and formed by means of
the rings ll and 28 is effective in preventing tilt
ing of the frame i8 relatively to the frame I.
Consequently the ?exible drive chain 44 ‘is main
tained in such position as to permit the discharge
conveyor B to be moved through a wide angle on
the vertical axis of the pivotal connections be
tween the frames l0 and I8.
A motor 2! is mounted on the frame l8 with
its armature shaft extending transversely there
of. The armature shaft has secured thereon a
sprocket 22 which through a chain 23 drives a
sprocket 24 mounted on a shaft 25 parallel to the
armature shaft. The upper run of the chain 23
engages an idler pulley 26, as shown in Fig. 2.
At its end opposite sprocket 24, the shaft 25
has secured thereto a second sprocket which en
gages a chain 21 to drive a sprocket 28 ?xed to
a hub 29, as shown in Fig. 6. The hub 29 is
mounted on the shaft 30 for free rotation thereon.
The shaft 38 is journaled in the upper portion
of the frame l8 in parallel relation to the shaft
25. A shiitable clutch element 3! is splined on
shaft 3i! and is provided with teeth 32 for en
gagement with teeth 33 on the hub 29 so that
40 rotation of the latter will be imparted to the
shaft 39. That is to say, when the motor 2! is
operating, power will be transmitted therefrom
through the sprocket chain gearing, shown in
Fig. 2, and the shaft 25, to the sprocket 28 shown
in Fig. 6, and when the clutch Si is thrown in,
power will be transmitted to the transverse
shaft 30.
Fixed on the shaft 30 within and adjacent the
side Walls of the frame I is a pair of sprockets
50 34, 35 which are adapted to engage the lower runs
of the chains 3%, 31 of the scraper conveyor com
prising the cross flights 38. This scraper con
veyor travels the full length of the bed or way
of the discharge conveyor B, as illustrated in
Fig. 5.
A second shaft 39, as shown in Fig. 6, is jour
naled in the frame 18 below the shaft 30 and is
adapted to be driven by the sprocket chain 4|
and the sprockets 44, 42.
It will'thus be seen
60 that this shaft 39 always rotates in unison with
the shaft 25 whenever the clutch 3i is thrown in.
That is to say, when the motor 2i is operated
and the clutch 3| is thrown in, power will be
transmitted to the shaft 3!! to drive the endless
65 scraper conveyor of the discharge conveyor B, and
at the same time power will be transmitted from
the shaft 25 through the shaft 3i} to the'trans
verse shaft 39.
Freely journaled on the second shaft 39 is a
70 drive sheave 43 with which is engaged a universal
chain 44 extending downwardly through the cir
cular opening it in the top plate I5 of the frame
Hi. In other words, the endless chain 44 extends
downwardly from the sheave 43 through the
75 pivotal connection between the frames l0 and
verse shaft 39 to the drive sheave 43 when the
entire loading machine is to be propelled along
carries at one end a cone clutch element 54
adapted to co-operate with the cone clutch ele
ment 58 of winding drum 5'! around which is
adapted to be wound a rope or cable I‘!
for op
erations hereinafter more fully explained.
An
operating lever ‘I4 (Fig. 2) is provided for actu
ating the lever 63 connected to the shipper 65, 66, as shown in Fig. 6. This shipper 65, 56, is con
nected by means of the tongue and groove mech
anism shown in Fig. 6 at 60, 6! and the ball
bearing shown at 64, to the rope drum 5'! so as to
enable the operator by means of the lever 14 to
apply or release the cone clutch 54, 58 to control
the rope drum 5?.
Connected to the rope drum 5? to rotate there
with is a brake drum 59 adapted to co-operate
with brake mechanism including the operating 3O
lever 8? shown in Fig. 2. This lever has a plu
rality of teeth adapted to be engaged selectively
by a pawl 88 to retain said braking mechanism
in locked positions of adjustment and thereby
lock the winding drum in stationary position
whenever desired.
From the foregoing description, it will be evi
dent that when the clutch 3| shown in Fig. 6,
is thrown in, the endless scraper conveyor of the
conveyor 13 will be operated as illustrated in Fig.
4. When the clutch 5!) is thrown in, the truck
propelling mechanism will be operated to move
the entire machine along the mine track. It
should be particularly noted, however, that only
when the clutch 3| is thrown in is the endless con
veyor of the conveyor B operated. When the
clutch 3i is released, power may nevertheless be
transmitted from the motor 2i to the shaft 39,
and therefore when the clutch 56 is thrown in,
while the clutch 3| is released, the whole machine _
may be moved along a mine track without oper
ating the conveyor B. This arrangement is de
sirable for the transportation illustrated in Fig. 7.
The winding drum 51 may be operated inde
pendently of the operation of the conveyor B and
independently of the operation of the truck pro
pelling mechanism because when the motor 2| is
operated there will be a direct transmission of
power through the shafts 25 and 30 to the trans
verse shaft 39. Consequently, when the clutch 60
54, 58 is thrown in, the rope drum 5'! may be
operated to hoist the gathering unit on to the
pony truck while the conveyors and the truck
propelling mechanism are out of operation. How
ever, simultaneous operation of the gathering con
veyor C, the discharge conveyor B and the rope
drum 5? may be secured whenever the gathering
conveyor C is operated, as illustrated in Fig. 5,
to effect gathering of the coal and the delivery
thereof to the mine car F.
As shown in Figs. 1 and 2, the adjacent por
tions of the conveyor sections B’ and B" con
stitute an inclined portion having at its upper
end a substantially horizontal prolongation and
at its other end another substantially horizontal 75
3
‘ 2,115,641
extension adjacent to the mine track. ‘To each
side of the section B" at its upper end is attached
‘I10 is reeved through a pulley attached to a mine
roof jack at I8I. By referring to Fig. 5, it will
an arm, one of which is shown at 9| in Fig. 2, ' be seen that the pulls exerted on the sections of
the arms extending along the adjacent end of the
UK conveyor section B’ and supporting a pin 92 upon
which section B’ is tiltably mounted. Each arm
9| has a threaded rod 93 pivoted to its upper
extremity, and each rod is provided at its lower
the rope extending from the mine roof jack l8l,
are such as to efficiently swing the gathering
conveyor on its pivotal connection with the dis
charge conveyor B while the receiving end'of the
latter remains above the mine track, because the
pull on the rope is effectively resisted by the pins
vIlll engaging the rails. By placing the idler
sheaves I04 and I06 between the truck and the
pins illl, the pulling strain on the pins Hll is
relieved by the truck. That is to say, the pins
the nut 94. The section B’ is thus resiliently sup
ported on the bolster 95 ‘and its position relative > NH and the truck co-operate in serving to afford
the section B" may be adjusted as desired by . an anchorage for that section of the rope I'll)
"15 toappropriate
which’extends between the idler sheave 104 and.
adjustment of the nuts 94. The con
‘the roof jack IBI.
veyor B as a whole is supported for tilting move
‘ To swing the gathering conveyor C in a direc
ment about the horizontal transverse shaft 3!]
tion opposite to that shown in Fig. 5, the vmine
shown in Figs. 2 and 6, so that the lower re
ceiving end of’ the conveyor B may rest upon the roof jack IBI will be placed on the other side of
track E,’ or may be elevated for transportation. ‘the machine and the cable I'm extended across
An apron N33 is so disposed, as shown in‘ Fig. 2, the under side of the section B” by being‘reeved
as to guard the lower runslof the endless scraper around the idler sheaves H35, ‘H35 instead ‘of
conveyor of the conveyor B. from interference around the idler sheave H14! alone. Otherwise,
the operation of the rope gearing is the same as
with the underlying parts of the machine.
At the forward end of the inclined portion of that already described.
As shown in Fig. 2, a panel N39 is supported
' section B" are secured plates or shoes 91 and 98
as shown in Figs. 2 and 3. Each of these ‘plates ~ between uprights l0‘! and ‘H38 on an intermediate
or shoes has a forward portion formed by the portion of the frame of the conveyor section B".
plate
being U-shaped to provide horizontal 'Various‘electrical control appliances are mount 30
M30
spaced~apart ?at sections‘ 91' and .98’, each of ed on the panel Hi9. At the upper end of the
arm 168-‘ is ‘mounted a sheave Hi9 on a horizontal
which is provided with a plurality of aligned aper
tures 99 and fill! through which may be extended axisyand ‘spaced inwardly of the sheave Hi3,’ as
pins it]! and N32 to project below the plates or shown in Fig. 3, is a bracket l l ! provided with an
into’ engagement with the sides or balls of open jaw for receiving the free end‘of the rope
“as shoes
?ll. On the other side of the machine opposite
the track rails to prevent lateral displacement
of‘ thereceiving conveyor B relative to the mine the sheave I I!) is a sheave ‘i it rotatably mounted
track or relative to the truck during the gathering on the vertical axis on the bracket i it.
To the forward end of the conveyor section B"
i‘ operations illustrated in Fig; 5. .
- The plates or shoes ‘91 and. 98 are important. is pivoted on a pivot member Hi3 disposedon the
40
central longitudinal line of the conveyor section
‘ features of- our invention as they’ serve‘the double
function of supporting theforward end of the B”, a bracket or member H5 comprising sec
conveyor B‘ on the rails of the trackE ‘when the tions HS and ill. The bracket H5 is adapted
‘a ‘loading machine is. in?operation as illustrated in to swing from one side of the forward end of the
.Fig; 5,‘ and of also preventing lateral‘ movement section B" to the other. A horizontal angle bar 45
45 loft-the‘ lower-‘receiving ‘end ‘:of ‘the conveyor B ‘I I8 secured‘ adjacent to the extremity of the
vrelatively to-the mine track‘ during the swinging bracket portion H‘! has a depending .lug H9
end with a nut 94. The rod extends through an
aperture'in a bolster 95 on the underside of the
section B’. Each rod 93 has a compression spring
96 mounted thereon between the bolster 95 and
‘of‘the gathering conveyor. That is‘to‘sayrthe .adapted to engage behind an arcuate rail "i211
pins all]! by engagingthe balls of .the rails,;coun ‘formed. on a ?ange l2! secured to the conveyor
section end. The pivot member I M is concentric 50
‘teract the tendencyJof the swinging ‘of thegath
ering conveyor cptouswing the receiving con
with the arcuate rail I25. Extending transverse
veyor B on its vertical‘ axis relative. to the truck, ly of the upper end of portion Il'i opposite the
*when the machine .is operating as illustrated in
angle bar H 8 is a channel member in, while at
the lower extremity of portion H‘! is a ?xed shoe
Fig. 5.
It should ‘also,v be noted that the rope gearing EH23. It will thus be seen that the gathering con 55
55 for‘ swinging the gathering conveyor C islarranged veyor C is connected to the section B" of the con
for most‘ef?cient operation as illustrated in Fig. 5.
“ The rope Hi1 which extends from therope drum
-\ 51 is guided around an idler sheave Hill which is
mounted at‘itheerearend plate 91. The plate 98
veyor B on a vertical axis at H4, and is also con
nected to the section B" on a horizontal axis at
NM.
The ?exibility of these connections be
supports in a similar .manner an idler sheave 186
on the othersidetofsthe machine, as shown in
tween the gathering conveyor C and the con
veyor section B" comes into play in the opera
tion illustrated in Fig. 5 as well as when the ma
Fig. 5.
As shownsin Fig. 5, ‘the gathering conveyor C
-is performing a coal gathering operation by being
transportation‘ purposes a tilting movement on
65 swung about itsipivotal connection to the con
veyor B. {In this operation,~the plates or shoes
‘ 79'! and 98 and their pins Ill! and I02 perform the
‘ double function of supporting the forward‘ end of
70 “ the discharge conveyor B ‘anda‘of preventing -lat-'
eral movementvthereof relatively to the truck.
‘ To effect the swinging movement of the gathering
chine is being transported in the mine. For
the horizontal axis Ml takes place for adjust 65
ment to the positions of the parts illustrated in
Fig. 7, and when the machine is being transport
ed along curves of a mine track, the conveyor B
is free to move on its vertical axis relative to the
truck, the conveyor C is free to move on its ver 70
tical axis relative to the pony truck D, and the
two conveyors B and C are free to move rela
tively to each other on the vertical axis 1 l4 (Figs.
conveyorC,‘v the free end of the cable 110 is at
“ tachedto‘the pocket terminal‘l39 shown at the I 1 and '7).
upper end of the post I31 in Fig: 1.“-"I!he>‘cable
As shown in ‘Fig; l, the gathering conveyor C 75
4
‘2,115,641
comprises a horizontal portion C’ and an inclined
portion C". A base plate I24 extends over the
entire bottom of the conveyor C and has dis
posed thereon suitable guide members as at I25
and I26 for an endless ?ight conveyor chain I21
?exible both horizontally and vertically. The
conveyor chain I21 is adapted to advance along
that side of the plate I24 which acts to scrape
the material from the mine bottom for delivery
10 to the conveyor B. The ?ights I28 are connected
to the chain I21 at intervals and are adapted to
engage the loose material from the mine bottom
and move it along the base plate I24 for dis
charge from the upper extremity of the inclined
section C". The ?ights I 28 are freely exposed
laterally on the portion C’ of the conveyor C.
Material retaining side walls I29 and I39, as
shown in Fig. 3, are provided along the inclined
edges of the section C".
20
The conveyor head shaft I 3I of the conveyor
C as shown in Fig. 1, has a sprocket ?xed there
to, meshing with the chain I21 to drive the lat
ter. A foot sprocket is arranged on a shaft I32
at the outer end of the plate I24. Also secured
to the shaft I3! is a bevel gear I33 with which
meshes a drive pinion I34 which in turn is driv
en from the armature shaft of the motor I35
mounted on a suitable base supported on the
plate I24 intermediate the runs of the chain
30 I21.
Extending forwardly from the motor I35
and centrally of the plate I24 is an upright
ba?ie plate I36, at the outer extremity of which
is located an upright post I31 having a bifurcat
ed upper extension to provide the rope attach
ing pocket I39.
Adjacent head shaft I3I, plate I24 has secured
thereto a bracket having spaced side walls of
which one is shown at I49 (Fig. 1) projecting
downwardly and adapted to receive channel I22
40 between them.
Walls I49 are perforated to re
ceive a removable pin I4I which is adapted to
extend through channel I22 to unite the gather
ing conveyor C with mounting member H5, al
ready described.
45
It will be evident that conveyor C may be ad
justed relative to conveyor B about an axis de
?ned by pivot member II 4 and about a horizon
tal axis de?ned by pin I4I. Due to the spaced
relation of pin MI to the top and bottom walls
of channel I22, conveyor C may also be adjusted
relative to conveyor B about a longitudinally ex—
tending axis. The upper end of conveyor C is
normally supported on the upper end of bracket
portion II1 on a rocking block or bolster £42.
In operation, portion C’ of the gathering con
veyor C assumes the position shown in Fig. 1
wherein it is adapted to rest directly on the mine
floor and to be swung thereover in the manner
which will be described more in detail herein
after. When the machine is to be transported,
the gathering conveyor is supported on a pony
truck which is pivotally attached to said gather
ing conveyor by the cup I54. (Fig. '1.)
Inasmuch as the gathering conveyor is of con
siderable weight, it is desirable to provide motor
operated means for elevating it into such posi
tion as to enable the pony truck to be placed
thereunder. A casting I55 secured to base plate
I24 forwardly of head shaft 43!, has a pair of
spaced upwardly projecting ears I56 and I51
which support a pin I59 which extends trans
versely of the plate. (See Figs. 1 and 3.) A mem
ber I 59 comprising two parallel arms is pivoted at
cable I62 secured to the bail is passed forward
through aperture I38 of post I31 and secured, the
cable when taut permitting member I59 to take
the position shown in Fig. 1. Intermediate the
upper ends of the arms comprising member I59,
a block I63 is mounted on pin I6I (Fig. 3), this
block revolvably supporting a pair of sheaves I64
and I65. A tubular member I 66 is pivoted at I61
to a casting on the motor frame and projects
rearwardly between the arms of member I59. 10
Rearwardly of member I59, member I66 is pro
vided with a downwardly projecting longitudinal
ly slotted web I68 in the slot of which is engaged
a removable pin I69 extending between and sup
ported by the arms of member I59. Abutment
of pin I69 with the lower end of the slot of web
I68 serves to hold member I59 in the upright
position of Fig. l and also serves to hold member
I66 in the position shown in Fig. 1, members I59
and I66 thus acting as mutual props.
Referring to Figs. 1 to 3, a rope or cable I19
is adapted to have one of its ends engaged with
winding drum 51. Thence the cable is adapted
to be trained forwardly over sheave II9, thence
around sheave I65, rearwardly to and around
sheave II 2, again forwardly and around sheave
I64, and ?nally rearwardly again to be anchored
between jaws III. It will be evident that upon
rotation of winding drum 51 in the winding di
rection and consequent tensioning of rope I19, a
20
25
30
substantially horizontally directed pull will be
exerted on conveyor C about pivot pin I4I, due
to the attachment of block I63, which supports
sheaves I 64 and I65, to the upper end of mem
ber I59. Tensioning of cable I62 will arrest any 35
tendency of member I59 to swing about pin I58,
and it will therefore be evident that the forward
end of conveyor C will be swung upwardly.
The pony truck D comprises a circular ring
I49 mounted rigidly on a wheeled truck at the 40
center of which is an upwardly projecting pin
having a semispherical head adapted to fit into
the cup-shaped socket I54 secured to the bottom
of the gathering conveyor C, as shown in Figs. 1
and 3. When the tension on the hoisting rope 45
I19 is released as illustrated in Fig. 7, the gath
ering conveyor will be supported by the ball and
socket joint I48, I54 and the ring I49, while the
overhanging weight of the conveyor C in advance
of the pony truck D will by means of the pivotal .
connection at I4I to the conveyor section B",
lift the latter clear of the mine track for trans
portation in the mine. During transportation
along curved portions of the mine track in nar
row mine entries, the discharge conveyor B will :
be free to swivel on its pivot I6, I1, 29 (Fig. 6)
relatively to the truck A, the gathering conveyor
will be free to swivel on the ball and socket joint
I48, I54 (Fig. '7) while sliding arcuately on the
ring I49, and the two conveyors B and C will be
free to swivel relatively to each‘other on the vertical pivot II4 (Fig. 1) between the same.
The controller for motor I35 is disposed on
panel I99 and novel means are provided for sup
porting the electrical conductors intermediate 65
the controller and the motor.
Vertically reciprocable in bearings HI and I12
on upright I91 is a tubular member I13 having a
horizontal projecting upper extension I14 whose
extremity is outwardly ?ared. Conductor cable
I15 is trained through the tubular housing con
stituted by portions I 13 and I14 and thence is
passed through tubular member I66 to the motor
one end on pin I58 and at its other end has a bail
I35, the free extremity of member I66 being out
I69 pivoted thereto by means of a pin I6I.
wardly ?ared.
A
15
75
5
2,115,641 1
During operation of the gathering conveyonrit
conveyor B.
There will then be little tendency
is desirable that the cable portion intermediate
to swing the receiving portion B" sidewise, While
the two tubular supports be elevated so as not to
interfere with the passage of material from one
.conveyor to the other and such disposition is il
at the same time considerable force will be ex
erted in swinging the gathering‘ conveyor on its
pivotal connection “4 to the lower receiving end
of the conveyor section B”. This is particularly
true if the pulling rope I10 is extending under
and transversely across the bottom of the section
lustrated- in Figs. 1 and 2, member I66, ‘being
maintained in the position shown-byv the means
already described. '
_
Bearing Ill, on the other hand; is provided
B” by being reeved around the pulleys H15, I06
and the connection to the gathering conveyor so 10
made as to swing the latter anti-clockwise, in
tioned, being engageable‘by a latch I18 hung on stead of clockwise as shown in Fig. 5.
Obviously those skilled in the art may make
bearing I'II. It will be evident that the walls of l
10 ‘with a recess adapted to be engaged by a lug I'll‘
on tubular member I13; the lug,'when ‘so posi
the recess engaging the lug, prevent rotation of -
15 element I13 and thereby prevent accidental dis
engagement of the lug from the latch, the latter
serving to holdthetubular guide element in the
position of upward adjustment shown in Fig. 3.
Referring particularly to Figs. 4 and 5, there
are seen diagrammatic illustrations of two of the
many different operationswhich may be per
formed by our device. As seen in Fig. 4, a sump
ing operation is being completed after the coal
has been cut and shot down. Loose coal at I55
is gathered by the gathering conveyor C and de
livered to discharge conveyor B from which it is
‘discharged into a mine car F. In this operation,
the plates orshoes 91 and 98 while supporting
the forward end of discharge conveyor 13- act in
cooperation ‘with the pins IIll and mine track
rails, to prevent buckling of the loading machine
conveyors.‘ To effect this sumping operation,
while the gathering conveyor‘C is held in aline
ment with the discharge section B, the cable I10
is reeved about the‘ horizontal pulley I04 and
the, ‘free end of the cable H0 is anchored to a
suitable mine jack at I80 (Fig. 4). The entire
machine is then sumped into the coal by operat~
ing ‘the friction clutch 54, ‘58 to connect drum
401 .51 to the motor 2|. At the same time, motor 2|
drives the ‘flights of discharge conveyor B and
motor I35~ drives the ?ights of gathering con
veyor C.
‘
It should be particularly noted that the truck
. tpropelling mechanism is su?iciently ?exible to
permit lateral adjustment of the receiving con-‘
veyor through an angle of about 45° on each side
of the' mine vtrack. When the gathering con
veyor-C is‘to be operated in very wide entries or
lrooms‘in ‘advance ‘of the mine track, it is desir
able to run the shoes oiT the ends of the mine
track and swing the conveyor apparatus 1B, C on
the vertical axis of’ the turntable relativelygto the
truck so as to secure a greater reach for the gath
ering conveyor C. When the conveyor appara-‘
tus is thus adjusted at an angle to the mine
track, ‘theshoes may rest on the mine bottom
and the pins extending through the shoes driven
into the mine bottom particularly if their lower
60 ends are sharpened for thislpurpose. If, how
ever, the mine bottomis composed of material
which is too hard to permit free driving of the
pins into the mine bottom, a roof jack may be
used at one side of thesection B” as an abut
ment, or such roof jack may be used between
the roof of the. mine entry or room and one of
the shoes so as to anchor‘ the latter ?rmly to
the mine bottom... Furthermore, the anchoring
jack I85 may be set in such a position that the
pull on the rope ‘between the conveyor section.
B" and the vertical post at the outer end of the
gathering conveyor will be nearly at right angles
to the latter, Whereas that portion or" the rope
extendingfrom the side of the section B” to the
anchoringjack IBI will be nearly parallel to the
various changes in the details and arrangement
of parts without departing from the spirit and
scope of the invention as defined by the claims
hereto appended, and we wish therefore not to
be restricted to the precise construction herein
disclosed.
‘
Having thus described and shown an embodi 20.
ment of our invention, what we desire tosecure
by Letters Patent of the United States is:
1. In a machine of the class described, a truck
having wheels adapted to engage a track, a con
veyor frame pivotally mounted on said truck on 25
a transverse horizontal axis and having an end
portion extending in proximity to the track ‘at
one end; of the truck, and laterally extending
plates on said end‘ portion of the conveyor adapt?
ed to rest upon the rails of the track to sup
so,
port the weight of said extending portion, said
plates being provided with downwardly project
ing means adapted to abut the track rails to
prevent displacement of the‘plates transversely
of the-rails.
35 .1
2. In a machine of the class described, a truck
having wheels adapted to engage a track, a con
veyor frame pivotally mounted on said truck on
a transverse horizontal axis and having an end
portion extending in proximity tothe track at 40
one end of the truck, and laterally extending
plates on said end portion of the conveyor adapt
ed to rest upon the rails of the track to support
the weight of said extending portion, said plates
being provided with a plurality of spaced aper~ 45
tures and pins selectively insertable in saidv ap
ertures to project beneath the plates for lateral
abutment with the track rails to prevent dis
placement of the plates transversely of‘ the rails.
3. In a loading apparatus, the combination '50..
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end
in a position‘ adjacent the track, a gathering
conveyor pivotally attached to said receiving con
veyor at said one end and means comprising“
a substantially horizontal plate and a downward
1y projecting pin attached to said one endv of said
receiving conveyor, said. plate being adapted to
rest on said track while the pin projects down
wardly below the top thereof to- cooperate with
track to prevent lateral movement of said
one end of said receiving conveyor.
4.1n a loading apparatus, the combination
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with oneend
in a position adjacent the track, a gathering
conveyor pivotally attached to said receiving con
veyor at said one end for pivotal movement about a vertical axis, and means attached to said‘ one.
end of said receiving conveyor adapted tocoop» 70
crate with saidv track :to support said one end ‘of.
said. conveyor and to. prevent lateral movement.
thereof, .said means comprising a pair-oflsub
stantially horizontal plates and- downwardlyprm.
jccting pins, one for each vtrack rail.
6
2,115,641 ’
5. In a loading apparatus, the combination
plurality of apertures and pins adapted to be in
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end
in a position adjacent the track, a gathering
serted in selected ones of said apertures to po
sition the lowered end of the receiving conveyor
at any one of a plurality of positions relative to
conveyor pivotally attached to said receiving con
veyor at said one end for pivotal movement about
a vertical axis, means for moving said gathering
conveyor about said axis to gather material, and
means attached to said one end of said receiving
said track.
10. In a loading apparatus, the combination
10 conveyor adapted to cooperate with said track
to prevent lateral movement thereof, said means
comprising a plate having a plurality of holes
and a pin selectively receivable by any one of
said holes.
15
6. In a loading apparatus, the combination
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end
in a position adjacent the track, a gathering
conveyor pivotally attached to said receiving con
20 veyor at said one end for pivotal movement about
a vertical axis, means for moving said gathering
conveyor about said axis to gather material, and
means attached to said one end of said receiv
ing conveyor adapted to cooperate with said track
25 to prevent lateral movement thereof, said means
comprising a pair of plates each having a plu
rality of holes and pins selectively receivable by
said holes.
7. In a loading apparatus, the combination
with a receiving conveyor having an elevated ma
terial discharge end and a lowered material re
ceiving end, of a truck positioned intermediate
the ends of said conveyor for supporting said
conveyor for pivotal movement about a hori
35 ‘zontal axis, a gathering conveyor pivotally at
tached to said lowered end of said receiving con
veyor adapted to feed said receiving conveyor
and mounted for pivotal movement about a ver
, tical axis, means for moving said gathering con
veyor about said vertical axis to gather material,
and means for supporting said lowered end of
said receiving conveyor and for preventing lat
eral movement thereof comprising a plate hav
ing an aperture therein and a pin adapted to be
45 inserted in said aperture.
8. In a loading apparatus, the combination
with a receiving conveyor having an elevated
material discharge end and a lowered material
receiving end. of a truck positioned intermediate
50 the ends of said conveyor for supporting said
conveyor, a gathering conveyor pivotally at
tached to said lowered end of said receiving con
veyor adapted to feed said receiving conveyor
and mounted for pivotal movement about a ver
55 tical axis, means for moving said gathering con
veyor about said vertical axis to gather mate
rial, and means for supporting said lowered end
of said receiving conveyor and for preventing
lateral movement thereof comprising a plate hav
60 ing an aperture therein and a pin adapted to be
inserted in said aperture.
9. In a loading apparatus, the combination
with a receiving conveyor having an elevated ma
terial discharge end and a lowered material receiv
65 ing end, of a track mounted truck for supporting
said conveyor for pivotal movement about a verti
cal axis, a gathering conveyor pivotally attached
to said lowered end of said receiving conveyor
adapted to feed said discharge conveyor and
70 mounted for pivotal movement about a vertical
axis, means for moving said gathering conveyor
about said vertical axis to gather material, and
means for supporting said lowered end of said re
ceiving conveyor and for preventing lateral move
75 ment thereof comprising a pair of plates having a
with a receiving conveyor having an elevated ma~
terial discharge end and a lowered material re~
ceiving end, of a track mounted truck for support
ing said conveyor, a gathering conveyor pivotally 10
attached to said lowered end of said receiving con
veyor adapted to feed said receiving conveyor and
mounted for pivotal movement about a vertical
axis, means for moving said gathering conveyor,
and means for supporting said lowered end of
said receiving conveyor and for preventing lateral
movement thereof comprising a pair of substan
tially horizontal plates each having an aperture
and a downwardly extending pin adapted to be
inserted in said aperture.
20
11. In a loading apparatus, the combination
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end
in a position adjacent the track, a gathering con~
veyor pivotally attached to said receiving con
veyor at said one end for pivotal movement about
a vertical axis, means for moving said gathering
conveyor about said vertical axis to gather mate
rial, and means attached to said one end of said
receiving conveyor adapted to cooperate with said
track to support one end of said receiving con
veyor and to prevent lateral movement thereof,
said means comprising a shoe having a pair of
vertically spaced walls provided with aligned holes
and a pin adapted to project downwardly through
said aligned holes and to be positioned laterally
of said track.
12. In a loading apparatus, the combination
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end 40
in a position adjacent the track, a gathering con
veyor pivotally attached to said receiving con
veyor at said one end for pivotal movement about
a vertical axis, means for moving said gathering
conveyor about said vertical axis to gather mate 45
rial, and means attached to said one end of said
receiving conveyor adapted to cooperate with said
track to prevent lateral movement thereof, said
means comprising a shoe having a pair of vertical
ly spaced walls provided with a plurality of 50
aligned holes and a pin, adapted to project down
wardly through selected ones of said aligned holes
and be positioned laterally of said track.
13. In a loading apparatus, the combination
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end
in a position adjacent the track, a gathering con
veyor pivotally attached to said receiving con
veyor at said one end for pivotal movement about
a vertical axis, means for moving said gathering 60
conveyor about said vertical axis to gather ma
terial, and means attached to said one end of
said receiving conveyor adapted to cooperate with
said track to support one end of said receiving
conveyor and to prevent lateral movement there 65
of, said means comprising a pair of shoes, one
for each track rail, each having a pair of vertically
spaced walls provided with a plurality of aligned
apertures and .a pin adapted to project down
wardly through selected ones of said aligned aper 70
tures and be positioned laterally of said track.
14. In a loading apparatus, the combination
with a receiving conveyor, of a track mounted
truck for supporting said conveyor with one end
in a position adjacent the track, a gathering 75
2,115,641
conveyor pivotally attached to said receiving con~
veyor at said one end for pivotal movement about
a vertical axis, means for moving said gathering
conveyor about said vertical axis to gather ma—
terial, and means attached to said one end of
said receiving conveyor adapted to cooperate with
said track to prevent lateral movement thereof,
said means comprising a pair of shoes, one for
each track rail, each having a pair of vertically
10 spaced walls provided with aligned holes and a
pin adapted to project downwardly through said
aligned holes and be positioned laterally of said
track.
15. In a loading machine, the combination with
7
a truck movable along a trackway, of a receiving
conveyor mounted thereon and extending down
Wardly and forwardly into proximity to said track~
way, abutment mechanism between said forward
ly extending portion of said conveyor and said CI
trackway, a gathering conveyor connected to said
receiving conveyor to swing relatively thereto on
an upright axis in advance of said trackway, and
rope gearing connected to said abutment mecha~
nism and operative to swing said gathering con 10
veyor as aforesaid to gather material for delivery
to said receiving conveyor.
NILS D. LEVIN.
EDWARD G. LEWIS.
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