Improvements in Apparatus for Drawing Coke.
Year: 1899

page_text: Improvements in Apparatus for Drawing Coke.
I, PERCY RICHARD JULIUS WILLIS, of Fairfield, Kingston-on-Thames, in the
County of Surrey, Consulting Engineer (a communication to me from abroad by
John A. Hebb, of Smock, Fayette County, Pa., U.S.A., Inventor), do hereby
declare the nature of this invention to be as follows:-
This invention has reference to improvements in apparatus for drawing coke
from retorts and the like; the object of the invention being to provide an
apparatus which will effect the operation in an expeditious and efficient manner.
The invention comprises a trolley adapted to travel on rails, and supporting a
suitable frame or basc. A rotatable table is mounted upon the base which can be
actuated by a lever combined with dogs which engage a segmental rack-bar. A
driving-shaft is mounted on the table and carries a pinion which is engaged by a
double gear which controlled and operated by gearing on the table. A scraper
is provided and has its stem formed with teeth on its underside to constitute a
rack which meshes with a pinion and is thereby caused to reciprocate: the to-
and-fro motion being controlled by clutch collars or sleeves which engage the
pinions and their shafts to reverse the motion alternately; a double yoke and
lever being provided to alter the position of the clutch-sleeves.
The scraper is supported on arms or a suitable seat which permits of its vertical
adjustment.
Improvements in Apparatus for Drawing Coke.
I, PERCY RICHARD JULIUS WILLIS, of Fairfield, Kingston-on-Thames, in the
County of Surrey, Consulting Engineer, do hereby declare the nature of this
invention (a communication to me from abroad by John A. Hebb, of Smock,
Fayette County, Pa., U.S.A., Inventor), 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 coke drawers for use in connection with beehive and
other ovens and it consists essentially, of a rotatable table-supporting operating
mechanism including a reciprocating scraper that is positively actuated to engage
and draw or drag the coke from one point to another.
The invention further consists of the details of construction and arrangement
of the several parts, which will be more fully hereinafter described and claimed.
•
027
.

page_text: The object of the invention is to provide a drawer that may be operated in
connection with or by steam, compressed air or electricity and one that will work
over the top of the coke in the same manner that it is worked by hand, the parts
being simple and effective in their construction and operation, strong and
durable, easily and readily applied in operative position, and comparatively
inexpensive in the cost of manufacture.
In the accompanying drawings Figure 1 is a top plan view of the entire
device. Fig. is a transverse vertical section taken through the centre of the
device. Fig. 3. is a detail perspective view of the clutch operating mechanism
and a portion of the shafts on which the clutch sleeves are mounted. Fig. 4 is
a detail view shewing the position of the operating pinion. Fig. 5 is a detail
view of the locking dogs of the rotatable table.
Referring to the drawings wherein similar numerals of reference are employed
to indicate corresponding parts in the similar views:-The numeral 1 indicates
an under platform where the power is attached, and extending therethrough is
an operating shaft 2, mounted in suitable bearings and adapted to be actuated by
any preferred form of motive power. The said shaft 2 has a pinion 3, Fig. 4,
secured adjacent to one end thereof, which passes through a slot in the said
platform, Fig. 4, and meshes with the under side of a double-gear 4, Figs. 2 and 4,
horizontally disposed and resting upon the upper side of said platform. The said
gear is supplied with stub-shafts having bearing in the platform 1 and also in
a horizontally disposed bearing bracket 5, and meshing with the upper side
thereof is a vertically disposed bevel-gear-wheel 6, Fig. 1, extending through
a slot in the rotatable table 7, and mounted upon a shaft 8 having bearing at its
opposite ends in journal supports 9 and 10. On the end of the shaft S opposite
to that on which the gear 6 is mounted a pinion 11 is secured and meshes with a
second pinion 12, keyed to the outer end of a counter shaft 13, Figs. 1 and 2, also
having bearing in the journal support 10 and in an inner similar support 14.
On the said counter-shaft 13 a smaller pinion 15 is loosely mounted and has a
clutch-collar 16 attached thereto. The shaft 13 is also supplied with oppositely
disposed feathers 17, which are engaged by grooves in a clutch-sleeve 18, Figs. I
and 3. In like manner the shaft 8, Fig. 1, has a loosely mounted pinion 19
thereon, supplied with a clutch collar 20, and adjacent to said pinion 19, the
said shaft is also supplied with feathers 21, Fig. 3, which relatively coact with
the grooves of a clutch sleeve 22, and by means of the said clutch collars and
sleeves the motion of the shafts 8 and 13 may be transmitted to the pinions 15
and 19 when the said clutch sleeves are operated to engage the clutch collars in
a manner which will be readily understood. The said clutch collars and sleeves
are to be constructed to interlock in any of the well known forms of such devices,
and meshing with the said pinions 15 and 19 is a gear 23 Figs. 1 and 2, keyed
to a shaft 24. also having bearing in the journal supports 10 and 14 above the
level of the shafts 8 and 13, Fig. 2, and in a plane intermediate of the same.
The end of the shaft 24, Fig. 2, extends beyond the journal support 10, and
thereon is also keyed a pinion 25, and extending from the rotatable table 7 is a
guard standard 26, Fig. 1, which is suitably braced and stands adjacent to the
outer face of the pinion 25 for a purpose, being held in this position as stated,
by braces, which are connected to the journal support 10 and also to a support 27,.
extending across a portion of said table.
Near the journal support 10 a bolster 28, Fig. 3, is mounted and thereto is
pivotally connected a double yoke 29, having its opposite ends bifurcated and
supplied with inwardly projecting pins 30. which engage grooves 31 in the clutch
sleeves 18 and 22. To assist in the pivotal attachment of the said yoke 29, and
also to sustain it in proper position relatively to the operating tension brought
to bear thereon, an arm 32 extends inwardly in a horizontal plane from the
journal support 14 and over the upper part of the depressed portion of the said
yoke and said arm has seated therein a pivot pin, which passes into the said
yoke. To the bottom of the said yeke, near one end thereof, a link-rod 33 is

page_text: secured and at its opposite end passes through a slot 34, Figs. 2 and 3, in the
journal support 10 and is attached to the short arm of a bell crank lever 35 also
mounted in said slot, and to the longer arm of said bell crank lever a second
link rod 36, Figs. 1 and 3, is connected at its rear end and at the forward end
attached to an operating lever 37, mounted in one of the slots 38, of a standard 39,
having upper segmental toothed edges, and in connection with the said lever 37
is a spring actuated gripping dog of ordinary construction, adapted to take into the
adjacent teeth of one of the said segmental edges to sustain the adjustment of
said lever. In the said standard 39 a second lever 41 is also mounted and
operates a shaft 42, which has a crank arm 43 thereon situated to one side of said
standard. The lever 41 is also supplied with a spring actuated dog of ordinary
construction, adapted to engage one of the segmental toothed edges of the
standard to hold the said lever and the parts which controls in the position
desired. Adjacent to the standard is a bed 45, having a slot 46, Fig 2, therein
and through the said slot movably extends a connecting link 47, pivotally
attached at its upper end to the under side of a forward portion of an adjusting
seat 48. The said adjusting seat comprises a shank 49, which extends rearwardly
and is pivotally supported between two lugs 50, disposed at the rear of the bed 45.
The front portion of the said seat is in the form of an extended bed 51, Fig. 2,
having a front downwardly curved edge 52, and in rear of said edge are upwardly
projecting guides 53, having front and rear inner bevelled ends, and across the
top of the front portions of the said guides extends a keeper 54. The said seat 48
supports and controls the elevation of a scraper 55, consisting of an elongated
bar with serrations or teeth 56 on the lower edge thereof. The said teeth 56
engage the teeth of the pinion 25, and by the operation of the said pinion the
scraper is drawn inwardly or moved outwardly through its seat, and by operating
the lever 41 the said seat may be raised or lowered in accordance with the
elevation of the coke to be engaged by the outer end of the scraper. Secured to
the outer end of said scraper is a head 57, simulating a hoe or drag and having
a front lower bevelled portion 58, to offer as little resistance as possible to the
forward movement of the scraper and the head against the coke, and also to
reduce the lower end of said head in order that a proper penetration betweeen the
pieces of coke may be accomplished.
The table 7 is rotatable, as previously set forth, so that the position of the
scraper may be changed relatively to the coke in the oven, and the said table is
adapted to be turned by hand. On the upper platform or support, in which the
said table is mounted a curved holding bar 59 is secured, which extends around
the said table a suitable distance, and has on the upper surface near opposite
ends thereof, ratchet teeth 60, which are reversely arranged and engaged by
elongated dogs 61, which are movable through a keeper 62, attached to a
support 63, and which acts to hold the said dogs downwardly and in engaging
position with the said teeth 60. The dogs 61 are pivotally attached to a lever 64
and the latter is movably connected to the support 63 and may have a suitable
locking device connected thereto for holding it in a desired adjustment, as well
as other appurtenances to facilitate its adjustment. The dogs 61 also have con-
nected thereto operating arms 65, by means of which they may be disconnected
from the teeth 60 when it is desired to materially shift the table 7. Under
ordinary conditions, however, the said table 7 may be slightly moved by operating
the lever 64 and changing the position of the scraper on the surface of the coke.
The clutch sleeves 18 and 22 are actuated by the lever 37, through the bell
crank lever 35 and the yoke 29 to either start or stop the mechanism.
The device as an entirety will be mounted on a truck 66, movable on a track
of preferred gauge.
The lower part of the machine is preferably constructed of wood, while the
mechanism exposed above is of metal and the several wheels and other devices
can be varied in dimension to suit the work or application of the machine or for
any other purpose. It will also be understood that the scraper may be elongated

page_text: or shortened and the gear changed to suit the work and conditions of the. coke
yard.
:
By the arrangement of the clutches as set forth means are provided for changing
the stroke of the scraper from an outward to an inward direction, and to accom-
plish this end the lever 37 is first operated to throw one clutch in connection with
its clutch collar and the other outward from engagement with its clutch collar
without reversing the main driving mechanism.
It is obviously apparent that many minor changes in the details of the con-
struction and arrangement of the several parts may be made and substituted for
those shewn and described without departing from the nature or spirit of the
invention.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
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(1) In a coke drawer, the combination of a rotatable table, an actuating lever
and dogs for operating said table, and supported thereby, a segmental rack-bar
engaged by said dogs, a vertically adjustable reciprocating scraper supported by
said table, and mechanism carried by said table, for operating the scraper
substantially as described.
(2) In a coke drawer, the combination of a driving shaft carrying a pinion, a
double-gear wheel engaged by said pinion, a rotatable table above said double
gear, operating gear on said table controlled thereby and having a part thereof
in mesh with said double gear, a reciprocating scraper carried by and moving
with said table, clutch mechanism intermediate said double gear and scraper, and
means for vertically adjusting said scraper, substantially as described.
an
(3) In a coke drawer, the combination of a rotatable table, shafts carrying
operating gears, and pinions mounted on and movable with said table, clutch
mechanisms for said gears and shafts, a reciprocating scraper operated by
said gears,
one of which is in direct mesh with said scrapers,
adjustable scat supporting said scraper and adapting it to be adjusted vertically
mechanism carried by the rotatable table for adjusting it on its vertical pivot, and
mechanism also carried by said table for controlling the seat and clutches, sub-
stantially as described.
(4) In a coke drawer, the combination of a rotatable table, supporting gears
and pinions and the shafts on which the same are mounted journalled on said
table, a plurality of said pinions having clutch collars adjustable clutch sleeves
for engaging said pinions with their shafts, a pivoted double yoke for operating
said clutch sleeves, a lever connected to said yoke, a scraper controlled in its
movements by the change of position of the clutch-sleeves, and a double gear and
its actuating pinion for actuating the gearing carried by said table, all sub-
stantially as described.
DL
11:
1421 1
זר
1000
P. R. J. WILLIS,
Applicant.