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l Jan. 7, 1947.
,l "c, zARKlN
r 2,413,899~
Jan.. 7, 1947.
c. zARKlN
‘ Filed oct, 29, 194:5 *
2 shears-sheet 2
¿2M/wis ZAW/f//v
Patented Jan. 7, 194.7
Charles Zarkin, New York, N. Y.
Application October 29, 1943, Serial No. 508,217
1 Claim. (Cl. 51--6l
of the dumper, for discharge of graining elements
The invention herein disclosed relates to grain
thereinto, when the table is tipped.
:lng machines of the type disclosed in the Zarkin
The trap door is shown as carried by a rec
Patent 2,674,633 of March 23, 1937, and partic
angle iron frame 2l, secured over the
uiarly to the dumper mechanism for returning
back of the bottom, as a frame about and be
the graining elements to the oscillating tub.
neath the trap door opening 22, in the bottom
Objects of the invention are to improve the
wall 23. Hinge brackets 26, are ,carried by the
dumper mechanism in structure and operation
upper bar of this frame and these carry the for
and in particular, to eliminate any possibility of
wardly or upwardly offset hinge knuckles 25, con
the marbles, steel balls or other graining ele
ments becoming caught in the trap door of the 10 nected with the trap door plate i9. The latter
as shown in Fig. 5, seats on the angle iron frame
2i, within the trap door opening 22.
Other desirable objects attained by the invene
The upper edge of the door plate is shown as
tion are hereinafter set forth or will appear in
cutwardìy or upwardly bevelled at 25, to match
the course of the following specification.
The drawings accompanying and forming part 15 the inwardly and downwardly bevelled upper
edge 2l, of the door opening, to fully close any
of the specification illustrate a present com
gap between the bottom or ñoor of the dumper
mercial embodiment of the invention. Structure
and the door, when the dumper is lowered as in
however may be modified and changed as regards
Figs. 4 and 6. This prevents any graining ele
this particular illustration, all within the true
intent and broad scope of the invention as here- 20 ments or other solid material from getting into
the hinge joint as the dumper is lowered and at
inafter defined and claimed.
the same time, leaves the bed of the dumper
Fig, l is a broken plan of the graining tub
smooth and iiush to run ofi the graining elements
and dumper mechanism.
into the tub when the dumper is raised and
Fig. 2 is a broken part sectional side elevation
of the same.
Fig. 3 is a broken sectional detail on substan
tially the plane of line 3-3 of Fig. 2.
Fig. 4 is a View similar to Fig. 2, but showing
the dum er lowered from the position first illus
Figs. 5 and 6 are enlarged broken sectional
views of the trap door in the two positions shown
in Figs. 2 and 4.
25 the trap door is closed as in Fig. 5.
The lower edge of the trap door, at the upper
face, is shown as downwardly bevelled at 28, to
avoid any abrupt shoulder at this point, which
In the machine illustrated, the graining tub
l, is carried by a frame S, mounted for oscillat
ing movement on the base 9, and the tub is piv
otally connected with the frame at one end at
iii, so that it may be tilted to run off the drain
ing elements through a spout l l, into a convergent
inclined tray or trough I2.
The dumper i3, is carried by trunnions I4,
journalled in pedestals lìland is rocked by means
oi a crank arm i6, on one of the trunnions, con
might interfere with or retard flow of> the grain
ing elements back into the tub, when the dumper
is raised and the door is closed as in Fig. 5.
The return chute l2 is shown as adjustable for
purposes of changing its inclination, by being
fulcrumed at the outer lower end over the bar
29, and by having lugs 3i), toward the upper end
of the same engaged in slots 3l, in brackets 32,
on the pedestals I5, and secured in adjusted re~
lation by wing nuts or other suitable íastenings
33, in Fig. 3.
The angular frame about the trap door open
ing reinforces the bed c1" the damper, enabling
it to safely carry heavy loads of graining mate
rial without warping and the inner portion of this
frame, where it extends inwardly beyond this
nected with the piston Il, of a power cylinder,
45 opening, forms a ñrm solid seat for uhe trap door,
the latter not shown.
supporting and holding this door in iiush relation
In the` raised position, Figs. 1 and 2, the lip of
with surrounding portions of the bottom wall, as
the dumper reaches over the end of the tub to
will be clear from Fig. 5. This frame also serves
pour the graining elements into the tub in front
as a substantial and rigid mounting and support
of the upraised dam I8.
In the lowered position, Figs. 4 and 6, a trap 50 for the trap door hinge. The hinge leaves 2d, may
be secured to the frame and hinge leaves 25, be
door it, hinged at its upper end in the bottom
secured to the trap door before these parts are
ci the dumper, is forced open, by engagement
applied to the dumper. Then, after the frame is
over correspondingly inclined rearward corner
secured, as by welding or otherwise, in position
edges 2t, cf the chute i2, to thereby admit the
lcwer'end of said chute into the lower portion 55 on the back of the bottom wall, the 'door may be
dropped into position on top of the frame and
the hinge pin or pins 34, then passed through
the aligned hinge knuckles.
The adjustment of the inclination of the re
when raised, said dumper having a side wall dis
posed toward the chute and the tub, said side
wall having an opening therein registering with
and positioned to receive the lower end of the
turn chute l2 at 30, 3l, etc., is also of advan
chute when the dumper is in lowered position, a
tage in locating the chute in best position to re
frame secured flat against the outer side of said
ceiving the graining elements from the spout Il,
Wall about said opening and extending inwardly
of the tub and in disposing the inclined abut
beyond the edges of said opening to provide a
ment shoulders 20 of the chute in position to open
seat within the perimeter of said opening, a trap
the trap door at the proper time, and to the nec 10 door fitting in said opening and resting on said
essary extent, to rock the upper edge of the door
seat substantially flush with the inner surface of
into the hinge protective relation shown in Figs.
said side wall, a hinge carried by said frame on
4 and 6.
that portion which is uppermost when the dumper
That portion of the dumper which becomes the
is lowered, said hinge being connected with that
lower end when the dumper is lowered as in Fig. 4,
edge of the trap door which is uppermost when
is shown as having a perforated or reticulated
the dumper is lowered, the chute having at the
bottom or end wall 35, to drain liquid contents
lower end of the same a shoulder projecting
into a catch basin 36.
through said opening into position to engage and
What is claimed is:
swing the trap door inwardly into the dumper,
A dumper for a graining machine having a tilt 20 when the dumper is lowered, and the opposing
ing tub, an inclined chute supported independ
upper edges of the trap door and the opening in
ently of the tub in position to receive the graining
the side wall being angled to cooperatively sub
elements discharged by the tilting of the tub and
stantially seal the joint between the trap door
a dumper pivotally supported independently of
and side wall, over the hinge, when said trap door
the tub in position to receive the graining ele 25 is swung inwardly as described.
ments from said chute, when lowered, and to re
turn the graining elements back into the tub
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