Improvements in Mining Machines.
Year: 1890

page_text: Date of Application 2nd Sept 1890-Accepted 1st Nov
1800
COMPLETE SPECIFICATION.
Improvements in Mining Machines.
1, JOHN KANGLEY, of Streator, in the County of La Salle, State of Illinois,
Gentleman, do hereby declare the nature of my invention for IMPROVEMENTS IN
MINING MACHINES, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
This invention relates to improvements in coal cutting or mining machines and it
consists in the novol and improved combination and arrangement of parts hereinafter
fully described and pointed out in the claims.
In the accompanying drawings:
Figure 1 is a top plan view and
Figure 2 a side elevation of my improved machine and attachments for effecting
the advance movements of the same.
Figure 3 is a transverse vertical section through the devices for supporting and
adjusting the cutting mechanism.
Figure 4 is a detail sectional view of the bearing and support for the cutting wheel
or carrier.
Figure 5 is a bottom view and
Figure 6 is a top view of the supports for inner end of cutter framo.
Figure 7 is a transverse sectional view on line - Figure 5.
Figure 8 is a vertical sectional view of the winding drum and attachments.
Figure 9 is a top plan view showing manner of supporting winding drum.
Figure 10 is a side elevation partly in section of a portion of the cutting apparatus.
Figure 11 is an edge view of a section of cutter.
Figure 12 is a sectional view on line y-y Figure 11.
Figure 13 illustrates in plan a modification of the feeding mechanism.
Figure 14 is a bottom view illustrating the gearing for transmitting motion from
the main or crank shaft to the winding drum.
Similar letters and figures of reference in the several figures indicate the same
parts.
The frame of the machine is composed principally of two side pieces or sills A,
the frame or casing B containing the cylinders etc., of the motor, and a frame C
supporting the cutting mechanism.
The motor is located at or near one end of the frame and the cutting mechanism
at or near the opposite end, the frame of the cutting mechanism boing formed
or provided with seats c, properly shaped to receive the sills A, the latter being
clamped and firmly held in position by bolts or equivalent fastenings.
Upon the sills A are bolted castings A' containing bearings for the main crank
shaft D and a counter shaft D'.
The shaft D is driven by the motor and connected to counter shaft D' through
gears d. A second counter shaft D² supported in bearings a beneath sills A is
driven from a pinion on shaft D and transmits motion through bevel gears d¹ to
shaft d², the latter communicating through a system of change gears d with worm
shaft d for driving the drum E.
In a machine heretofore constructed by me the winding drum was horizontally
disposed, and in operation, as the rope or cable was wound upon it, to effect an
advance movement of the machine, the line of draft shifted from one side to the
other, thereby producing a lateral deflection or twisting of the machine. To over-
come this defect the winding drum of my present machine is vertically disposed,
so that, as the rope or cable is wound spirally upon the surface of the drum, it
will always draw in the same vertical plane, and the deflection if any is produced
will be constant instead of shifting laterally.

page_text: The means for supporting and actuating the winding drum form a part of my
invention.
At the front end of the machine and between the sills A is fitted a cross piece or
casting provided with a vertical box or bearing 2 and a sleeve or box 3 for the
accommodation of the worm shaft.
A bracket or overlunging arm 4 provided with a hearing coincident with bearing 2
and a grooved or recessed flange 5 is fitted to embrace and rest upon a flange or
projection 6 on the front end of easing B and is held thereon by bolts 7. This over-
hanging arm is thus securely and firmly fastened in position directly upon the
casing B, thereby dispensing with extra frame work or braces, and periritting said
arm to be readily applied and removed when necasion requires.
An upright shaft 8 is fitted to the bearing 2 in cross piore 1, with the worm
wheel 9 koyed or otherwise secured to it below said bearing and a wheel or clutch
section 10 abovo said bearing.
Upon the upper portion of the shaft 8 is fitted a sleeve 11 provided with collars 12
and 18 (one of which is made removable) and between the latter, and surrounding
the sleeve 11 is mounted the winding drum E. The drum is free to turn upon the
sleeve and the latter upon the shaft and the lower inner surface of the drum is slightly
coned, inclined or otherwise formed or constructed to co-operate with the opposite
clutch section 10 on shaft A.
In the present instance a friction clutch is formed by the exterior surface of
section 10 and the inner surface of the drum, so that when they are brought together
the drum will rotate in unison with the shaft, and when separated, the drum will be
released from the control of the driving shaft.
To effect the engagement and disengagement of the drum from its driving shaft,
n hand wheel 14 or equivalent device is swivelled upon the upper end of the shaft 8
so that it is free to rotate thereon, but is permitted little if any motion longitudinally
of the shaft. Such a connection may be made by reducing the end of the shaft,
fitting the hand wheel to said reduced portion, and confining it by a nut or equivalent
device applied to the shaft above the wheel, so that the latter will be supported
betwean the nut and the shoulder on the shaft.
The wheel or lever 14 is provided with a scrow threaded -neket or collar 15
engaging the threaded end of the sleeve 11, whereby, as the wheel is moved in one
direction it will operate upon and through the sleeve to lift the drum and thereby
open the clutch and release the drum from the shaft ; and when rotated in the opposite
direction it will move the drum down towards the other section of the clutch, the
action of the screw in this instanco coinciding in direction with that of gravity, to
close the clutch and thus secure the drum to its driving shaft.
The next feature of improvement relates to the form, construction and manner of
supporting and operating the cutting mechanism.
The frame is formed or provided with a bearing 16 within which turns a shaft 17
carrying a sprocket wheel 20 at its lower end and provided with a bevel gear 18
at its upper end moshing with a gear 19 on shaft D'.
The cutting mechanism in the form of a chain 21, is driven from wheel 20 and
supported to one side and beyond the main frame in a framo 22 pivotally mounted
upon an axis coincident with shaft 17, so that the cutting mechanism can be swung
as a whole about said sluft without interfering with the driving mechanism.
To provide for this lateral movement of the cutting mechanism and the adjust-
ment of the cutters, a plato 25 is provided with a socket or bearing 24 adapted to
fit and move upon the lower end of bearing 16 through which the shaft 17 extends.
In the lower face of plate 23 is formed a groove or way 24 the sides being under-
cut as indicated in Figure 7, and a cap or plate 25 is bolted to said plate 23 to
confine and support the arm 26 carrying the sprocket wheel 27.
The arm 26 is preferably constructed in two sections 28 and 29 of which the
upper ono 28 is longer and its inner end is fitted to slide in the groove or way in
plate 23, while the inner end of the shorter or lower section 29 is received in
groove or way 30 in the outer ond of plate 25, the two soctions 28 and 29 being

page_text: bolted or otherwise secured together at or near the inner end of the arm 26 and
through the hub of wheel 27 near the outer end of said arm, thus forming a rigid
frame for carrying and supporting the cutting apparatus beyond the main frame of
the machine.
To provide for taking up slack in the chain and for adjusting the position of the
whoel 27, a wedge 30¹ is interposed between a shoulder on the arm or frame 26, such
as is formed by the inner end of the lower section 29, said wedge being actuated
by an adjusting screw 81 and arranged to traverse between said shoulder or inner
end of section 29 and the wall at the inner end of groove in plate 25 as represented
in Figures 3 and 5.
By moving the wedge the arm 26 can be forced outwards to increase the distance
between the driving wheel 20 and the carrying wheel 27, and the slack in the chain
can thus be taken up, and when it is desired to remove or replace the chain the wedge
can be retracted and the arm drawn inwards.
The groove or way in which the arm or frame 26 is mounted for radial adjustment
is formed on a line radial to the axis about which the said arm or frame is pivoted,
to bring the inward thrust in line with said pivot.
The outer ends of the two sections 28 and 29 (or the furcated ond of the frame 26)
are connected through the medium of a hollow plug or journal 33 closed at one end
by a head 34 and at the opposite end or top by a removable cap 35, the whole forming
a clamp for uniting the two sections, to prevent their separation or spreading, and a
receptacle for oil or other lubricant.
A pipe or duct 36 extending along one of the arms or sections, and opon at its
inner end while its outer end coinmunicates with the interior of the hollow journal 33,
serves to convey the lubricant to the said journal.
The opposite sides or ends of the hub of wheel 27 take bearing against the inner
faces of the two sections of arm or frame 26, and a sleeve 37, preferably formed or
provided with bevelled ends, is fitted snugly within the hub and takes its bearing upon
the journal 33, while the bevelled onds of said sleeve are seated and take bearing in
grooves formed in sections 28-29, as indicated in Figures 3 and 4.
The walls of the hollow journal are perforated or provided with ducts through
which the lubricant is conducted to the inner surface of the sleevs.
As thus arranged a strong and durable bearing is formed for the wheel 27, one
capable of withstanding wear and of resisting the strains put upon it; moreover,
the wearing surfaces are enclosed and protected from dust and grit, provision is made
whereby the lubrication of the surfaces can bo at all times effected, even when the
machine is in operation and when the wheel is within the cut and not accessible.
Moreover, the lubricant is supplied by hydrostatic pressure being conducted from
an elevated point so that the flow is from within the journal outwards between
the surfaces in contact, thereby preventing the entrance of dust etc., from without
through any space or spaces that may exist between the surfaces of the bearing.
This feature is of prime importance in machines of this kind, as the cutting
mechanism, when in action, is projected and operated within a narrow groove or cut
in the coal or other material operated upon, and is more or less covered by tine
particles, which if they are permitted to enter between the surfaces will quickly cut
out and destroy the bearings.
One of the principal objects in mounting the arm or frame carrying the cutting
mechanism so as to swing about a vertical centre, is to provide for the convenient
transportation of the machine. In this class of machines the cutting mechanism is
arranged to project laterally beyond the side of the main frame, so that as the machine
is advanced the cutters will form a narrow cut in the face of the wall or vein and
extending the full length of the gallery.
The cutting mechanism is necessarily constructed to stand out some considerable
distance beyond the main frame, which renders it difficult of transportation, par-
ticularly through narrow galleries or other passages without first removing the cutting
mechanism and necessitating its replacement and adjustment before beginning
operations.

page_text: By mounting the entting mechanism in the manner described, upon a vertical
nxis coincident with the driving shaft 17, the whole cutting apparatus can be swung
in rear of the main frame or turned in different angular relations thereto so that the
machine can readily be transported not only through narrow, but through crooked
galleries and passages; and when starting the cut in a narrow gallery the cutters can
bo entered from a position in rear of the frame and then swung around into position
at right angles theroto.
Provision is made for quickly and easily offecting the lateral movement or adjust-
ment of the cutting mechanism about its pivotal point of attachment to the main
frame, by the application of worm or equivalent gearing. Thus in the present
instanco a worm wheel and shaft 10 are mounted in bearings on plate 22 (the worm
being protected by an enclosing casing) and arranged to engage a toothed segment 41
formed upon or preferably secured to the frame C, as indicated in Figure 3. The
plate 22 may also be provided with a guide or flange 42 overlapping and resting
upon a support or guide, such as is formed by the upper face of this toothed segment,
forming an additional support for the armn carrying the cutting mechanism, to resist
twisting and vertical deflection of the said arin.
The shaft 40 is preferably made of such length that a crank can be applied to the
ond and operated, without interfering with the chain, for swinging the cutting
mechanism. As will be seen by reference to Figure 1 the toothed segment with
which the worm engages extends in rear of the main frame. a sufficient distance to
permit the arm carrying wheel 27 of the cutting mechanisin to be swung around in
line with the frame.
It will be noted that in effecting this adjustment of the cutting mechanism, its
driving gearing is not interfered with or disconnected in any way, but is at all times
preserved in working condition.
The cutting apparatus constitutes another novel feature of this machine. The
wheel 27 is provided with a series of grooves or spaces 50, the portion of the
periphery lying between said grooves forming what may be termed sprocket
Loeth 51.
Some of the teeth 51 are provided with sockets 52 for the reception of the shanks
of cutters 53, the latter being secured in position with their cutting edges projected
beyond the periphery of the wheel, by set screws 54. These set screws are entered
through the sides of grooves 50 and are covered and protected by the cross bars or
pintles of the chain, when lying in said grooves as shown in Figure 10.
In addition to the cutters 53 carried by the wheel 27, the chain 21 by which said
wheel is driven from wheel 20 is also provided with cutters.
Tho chain 55 may be of any ordinary or approved form adapted for the purpose,
and in the present instance it is composed of a series of pairs of links 56, 57,
connected by cross bolts 58, with a sleeve or collar 50 surrounding the bolts between
the links of oach pair, said sleeves entering the grooves or spaces between the tooth
in wheel 27.
The links 56 which are arranged in line between two of the ordinary pair of
links 57 are connected together or provided with a yoke or saddle 60 adapted to rest
upon the teeth of the sprocket wheel 27 and to overlap and embrace the initer, the
edges of suid whool being slightly bevelled, as indicated in Figure 12, so as to facilitato
its entrance between the legs of the saddle which lattor is proferably prolonged and
extended somewhat bolow the inner or lower margin of the link.
This saddle or yoko 60 is preferably made integral with the links 56 which it
connects, and is provided with sockets or other holders 62 for the reception of
cutters 68.
When the chain is applied to the wheel 27 it is so arranged and adapted with
reference to the number and arrangement of the cutters on said whool, that each
cutter 53 will be projected through the open spaces in the chain formed by links 57,
while the yokes 60 will engage and rest upon teeth not provided with cutters 53.
In the illustration givon the links 56 alternato with links 57, hence every other
tooth of the wheel 27 may be provided with a cutter 53, but, it is obvious, a less

page_text: number of cutters 53 may be employed and a larger number of yokes 60 and
cutters 63 should it be deemed necessary or desirable. The yokes 60 engage the
sides as well as the periphery of the wheel 27 and are thus held firmly against latoral
movement and prevented from tilting so that their cutting edges are maintained and
supported in proper position when in action.
The operating edges or faces of the cutters 63 project laterally beyond the sides of
the wheel and chain so as to form a cut of sufficient width to admit the cutting
mechanism, and they project inwards into the path traversed by the cutting or
operating face of cutters 53, so as to effect the removal of the material lying in the
plane of the chain and wheel.
As hereinbefore stated the progressive movement of the cutting mechanism through
the material is effected by advancing the machine, consequently the cutter and its
supporting arm are hung low on the main frame, and instead of mounting the machine
so as to traverse upon guiding rails, for holding it up to its work, it is furnished with
supporting wheels 70 resting directly on the floor and the machine is guided, advanced
and held properly to its work by a novel application of the cable. Heretofore the
cable 71, one end of which is connected to and wound upon drum E, has been attached
at its opposite end to a support or anchor in advance of the machine. The cutting
mechanism being located in rear and to one side of the drum, the winding of the
cable upon the drum has the effect of forcing the rear end of the machine to one
side or away from the wall, thereby withdrawing the cutter.
By my present improvements I utilize the tension of the cable in the act of
drawing the machine forward, to hold the machine up to its work and to this end,
instead of securing the cable to the strut or anchor 72 located in front of the machine,
I pass it around a pulley 73 (supported upon said strut so as to be permitted limited
vertical motion thereon) and conduct it back along the outside of the machine and
either attach the end to a strut 74 in roar of the machine (see Figure 13) or
pass it around a pulley 73 on said strut, and, carrying it again longitudinally of the
machine, secure the end to a strut or anchor in advance of the machine.
When the cable is thus passed longitudinally of the machine it is caused to engage
pulleys or other supports 75 at opposite onds of the frame, thus as shown in Figure 1
where the cable extends longitudinally of the machine on opposite sides thereof it
takes a bearing on the frame at or near the four corners, the machine traversing
between the two equal lines both of which are under tension, and serve as flexible
guides for directing and holding the machine in the plane of a line connecting the two
struts or anchors; and in the modified form shown in Figure 13, the lateral pressure
or deflection of the forward end of the frame occasioned by winding the cable upon
the drum is neutralized by the pressure of the cable upon the opposite corner, while
the pressure on the rear corner is sufficient to hold and maintain the cutters up to
working position.
The tension placed upon the cable is directly proportional to the resistance
encountered in effecting the advance movement of the machine, hence the harder the
material and more difficult the cut, the greater the pressure of the cable upon the sides
of the frame and the resistance to lateral displacement.
These guiding and holding operations may be, and preferably are, supplemented by
the application along the outer side of the machine of a series of removable struts 76
provided with flanged wheels 77 against which a guide rail 78 on the frame of the
imachine bears. The guide rail 78 is preferably set at an angle and provided with a
rounded boaring surface, while the flanged wheels 77 for co-operating with said rail
are provided with cylindrical hubs or sleeves and laterally projecting flanges, said
wheels being free to move vertically upon their supports.
The flanges of the wheels 77 rest upon the guide rail with the latter against the
hubs or collars of the wheels and owing to the angular disposition of the guide
rail it serves to resist the upward tilting motion of the cutting mechanism, at the
same time permitting vertical motion of the frame parallel with the axis of the
wheel.
A collar 79 or equivalent stop is applied to the support or strut carrying the flanged

page_text: wheel, to sustain the latter at the proper elevation for the initial engagement of the
guide rail, when the strut is placed in advance of the frame, in position to be engaged
as the machine is drawn forwards.
Having now particularly described and ascertained the nature of any said inven-
tion, and in what manner the same is to be performed, 1 declaro that what I
claim is:
1. In a machine, such as described, the combination with the min frame and the
plate pivoted thereto and carrying the arm supporting the wheel of the cutting
mechanism, of the gear segment on the frame, the worm on the plate and guide
engaging the upper face of the segment; substantially as describod.
2. In a machino, such as described, the combination with plate 22 pivotally con-
nected to the main frame and provided with an underent groove or way, and a cap
plate 25, of the arm 20 formel in two sections and the wedge 30 engaging the inner
end of one of said sections; substantially as described.
3. In a machine, such as described the combination with the pivoted furcat-ul arm
bearing the cutting apparatus, of the wheel interposed between the members of said
arm and held in position by a hollow journal connecting said members; substantially
as described.
4. In a machine, such as described, the combination with the wheel of the cutting
mechanisin and the arm supporting said wheel connected to and projecting beyon 1 the
main frame, of the closed hollow journal upon which said wheel is supported provided
with an oil duet extending longitudinally of the supporting arm; substantially as
described.
5. In a machine, such as described, the combination with the main frame, the
laterally projecting arm, and the wheel mounted upon said arm, of the closed hollow
journal, the oil duct leading from said journal longitudinally of the supporting arm
and provided with an elevated receiving end, and the duet or ducts leading from within
the journal to the wearing surfaces; substantially as described.
6. In a machine, such as described, the combination with the main frame, a laterally
projecting arm or frame carrying the entting mechanism, and the wheel mounted in
the furcated end of said arm, of the sleeve provided with bevelled ends engaging seats
in the opposite members of the arm, and a journal extending through said sleeve
and clamped upon the outside of said members of the arm; substantially as
described.
7. In a machine, such as described, the combination with the furcatel arm carrying
the cutting mechanism, of the wheel mounted in said arm, the hollow journal and the
bevolle bearings on opposite faces of the wheel; substantially as described.
8. In a machine, such as described, the combination with the main frame, of the
grooved bracket engaging a web or flange on the cylinder casing, the cross picco
inserted between the silfs, the vertical shaft supported in boarings in said cross
picco and bracket, and the winding drum mounted upon said shaft; substantially as
described.
9. In a machine, such as described, the combination with the vertical shaft
supported on the main frame and provided with a clutch section, of the drum
supported above said clutch section on a sleeve on said shaft with devices for moving
said sleeve and drum to engage or release the clutch; substantially as described.
10. In a machine, such as described, the combination with the main frame, of the
vertical shaft carrying one section of the friction clutch, a sleovo movable longi-
tudinally of said shaft, the winding drum supported upon said sleave and provided
with the other section of the clutch, and a nut swivelled upon the shaft and engaging
the sleeve thereon, to move the drum and thereby connoct or disconnect, it from tho
shaft substantially as described.
11. In a machine, such as described, the combination with the main frame, of the
vertical shaft carrying the tapering friction wheel, the winding drum supported on a
sleeve movable longitudinally upon said shaft, said drum boing provided with a
taporing end to co-operate with the friction whool, and the hand wheel swivelled upon

page_text: the shaft and provided with a threaded portion engaging the sleeve to move the
latter; substantially as described.
12. In a machine, such as described, the combination with the supporting arm or
frame of the cutting mechanism, of the sprocket wheel provided with cutters on its
periphery and the chain engaging said wheel and also provided with cutters; sub-
stantially as described.
13. In a machine, such as described, the combination with the supporting frame or
arm of the cutting mechanism, of the wheel provided with transverse grooves forming
sprocket teeth for engaging the chain, and having radial sockets for the cutters, and
set screws inserted through recesses or openings in the walls of said groovos and
ongaging the shank of the cutter; substantially as described.
14. In a machine, such as described, the combination with the wheel of the cutting
mechanism provided with transverse groove or sprocket teeth and radial cutters, of
the driving chain carrying cutters on opposite sides; substantially as described.
15. In a machine, such as described, the combination with the sprocket wheel and
its radial cutters, of the driving chain composed of open links and yoked links
carrying cutters; substantially as described.
16. In a machine, such as described, the combination with the carrying sprocket
wheel provided with radial cutters inserted at intervals in the teeth, of a driving chain
composed of a series of pairs of links connected by cross pieces or bars, some of said
links being connected by yokes and carrying cutters beyond the edges of the wheel;
substantially as described.
17. In a machine, such as described, the combination with the carrying sprocket
wheel bevelled at the edges of the drive chain, the links whereof overlap the parallel
sides of the wheel and are connected together at intervals in the length of the chain
by yokes in which cutters are mounted, said yokes being extended inwards towards
the centre of the wheel beyond the inner edges of the links, to provide a longer
bearing on the wheel and prevent lateral displacement of the cutters; substantially
as described.
18. In a machine, such as described, the combination with the main frame, a
cutting mechanism mounted thereon and devices for effecting the advance inovemont
of the frame, of a series of struts bearing guide rollers, engaging an inclined guide
rail on the frame; substantially as described.
19. In a machine, such as described, the combination with the main frame, cutting
mechanism and feeding devices, of a portable strut carrying a flanged roller movable
longitudinally of the strut and engaging a guide rail on the frame; substantially as
described.
20. In a machine, such as described, the combination with the frame and its
cutting and feeding devices, of the struts, the flanged rollers, the supports for
limiting the movement of the rollers on the struts, and a guide rail secured to the
frame and engaging the roller; substantially as described.
21. In a machine, such as described, the combination with the portable frame
carrying the cutting mechanism and provided with a winding drum, struts or anchors
arranged in front and in rear of the frame and a cable or rope extending from tn
anchor in rear of the frame passing around the anchor in front of the frame and
connected to the winding drum with pulleys or supports in the frame engaging the
cable at points intermediate the anchors; substantially as described.
22. The combination with a portable mining machine, such as described, provided
with cutting mechanism and a winding drum, of a cable connected to the winding
drum and extending forwards to a fixed support or anchor and thence rearwardly to
a second support or anchor, with bearings on the frame engaging the cable between
the two supports or anchors; substantially as described.
23. The combination with a portable mining machine, provided with cutting
apparatus, of a cable extending longitudinally of the machine from a point in rear to
a point in advance of the machine and connected at one end to the latter, with a
pulley or bearing on the frame engaging and traversing upon the cable between the
supports therefor; substantially as described.

page_text: 24. The combination with a portable mining machine, of a cable extending longi-
tudinally of the machine and engaging the latter, to guide and hold it to its work,
said cable being connected to the feeding mechanism for advancing the machino and
maintained under tension thereby; substantially as described.
25. The combination with a portable mining machino carrying winding mechanism,
of a traction cable engaged by the winding mechanism, said calile being supported in
rear and in advance of the machine and engaging the frame on the side opposite the
cutting mechanism; substantially as described.
26. The combination with a portable mining machine, of two supports or anchors
located the one in rear and the other in advance of the machine, a traction cable
connected to the machine and extending longitudinally thereof on opposite sides and
ongaging both anchors; substantially as described.
27. The combination with a portable mining machine, and two portable anchors or
struts, the one located in advance and the other in rear of the machine, of a traction
cable extending longitudinally of the machine from the front to the roar anchor and
on the opposite side from the rear anchor to the front anchor and thence to the
machine and with bearings or pulleys on the frame running between the parallel
portions of the cable, substantially as described.
28. The combination with a portable inining machine, of the traction cable
extending longitudinally of the machine and connected at one end to an anchor in
advance thereof, a series of struts arranged in the line of movement of the machino
and engaging a guide rail on the frame; substantially as described.
29. The combination with the main frame provided with vertical boaring 16 for
shaft 17, of the frame carrying the cutting mechanism pivoted directly upon the
lower extension of bearing 16, the sprocket wheel 20 applied to shaft 17 below
the cutter frame and a chain engaging said sprocket wheel; substantially as
described.
D: 11...
J
1000