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June 28, 1949.
-
T. G. GEROW
'
OLL CRUSHER WITH INT ERLOCKING
TEE TH OF GRADUATED 1mm ms
F1‘led May 14, 1945 .
OPPOSED—R
v
2,474,625
‘
Patented June 28,1 1949
2,474,625
OFFICE‘
‘ UNITED STATES2,474,625
OPPOSED-ROLL oRUsHER WITH, IN
TERLOCKING TEETHQF GRADUATED
‘ arrears
" Theron G. Gerow, Chicago, Ill;
Application May 14, 1945, Serial No. teats?
2 Claims. (Cl. air-“234i
1
2
This invention relates to an adjustable 1'011
to ‘the frame.- The slidably mounted supports H,
crusher having teeth continuous-1y‘ graduated in
each have a threaded bolt l8, a lock‘ nut l‘9', a
spring 20', and a spring nut 2|’ as shown in Figs. 1
and 2. This construction permits the rollers Hi to
be moved to and from each other to a desired
relative position.‘ Bracket‘ 27 is movable with ad
jacent bearing [2, while gear H5 is splined :at 29 in
height from one end to-the other.
‘ “ 3 ‘
Among‘ the objects of my invention is‘to pro
vide a roli crusher so- constructed as to‘ allow
greater ?exibilityuofroll adjustment, to ‘produce
an aggregate having mixed different sizes. My
longitudinally slidable position on shaft l'l. Shaft
rollers have teeth varying in height with the
It shown on the right in Fig. 1 maybe adjusted.
largest teeth at one endv graduating continuously
to the smallest teeth’ at the opposite end. My‘roll 10 springs‘ 2;‘0 are adapted to act as cushions, be
cause bearings 12 are not too rigidly‘ attached to
ers are‘ adjustable so that the ‘top size of the
supports ll. This permits the rollers 14' to
ground product may be accurately determined
spread“ apart slightly against springs 20, when a
and produced with the further‘ advantage that my
larger piece of coal passes through rollers M.
rollers also produce varying-smaller sizes‘ along
with the top size to provide an aggregate having 15
mixed different sizes.
1This aggregate having
mixed different sizes is of particular importance
' where the produce ground is coal, because it is
In Fig. 5, as shown more in detail, spline 28
is set in shaft I‘! and acts as a key to drive gear
[18. In Fig. 6 as shown more in detail, bearing I2
is adjustably mounted on bracket 2'], and bracket
27 is movable with hearing l2 against spring 20.
often desirable in stokers and other devices that
My rollers 14 are formed with a plurality of
the coal be of varying sizes for maximum burning 20
segments or staves 22, attached by bolts 21', ex
efficiency.
tending through slots 28 to the diaphragm 23,
My invention also contemplates such other ob
the web 24, of which extends to hub 25 which
jects, advantages and capabilities as will later
engages the shaft l3.
more fully appear and which are inherently pos
Said rollers I 4 are positioned opposite each
25
sessed by my invention.
While I have shown in the accompanying draw
other and are spaced relative to each other as
desired by the slidable adjustment of said slidably
ings a preferred embodiment of my invention, yet
mounted bearing supports ll. Said rollers Id
it is to be understood that the same is susceptible
have interlocking teeth v26 graduated from the
of modi?cation and change without departing
30 highest at one end to the lowest at the other
from the spirit of my invention.
Referring to the drawings, Fig. l is a top plan
end, with the largest tooth of one roller opposite
view partly in section, of a roll crusher embody
the largest tooth of the other roller, the smallest
ing my invention; Fig. 2 is a side elevational View
tooth of one roller opposite the smallest tooth of
partly in section with the hopper; Fig. 3 is a de
the other roller and the intermediate teeth of
graduate size of one roller opposite the inter
tailed sectional view of the breaker segments and
diaphragm; Fig. 4 is an enlarged detailed sec~
mediary teeth of corresponding size of the other
tional view of the breaker teeth; Fig. 5 is a de
roller, said rollers adapted to crush coal with
said teeth to produce coal having some pieces
tailed sectional view on line 5—5 of Fig. 1 and
Fig. 6 is a detailed sectional view on line ‘6—'5 of
of desired maximum size with other pieces of a
Fig. 1.
40 smaller size to produce an aggregate having
mixed different sizes for maximum burning ef
The embodiment selected to illustrate my in
?ciency.
vention comprises a main frame H], on which are
mounted two pairs of spaced bearing supports I l.
Having thus described my invention, I claim:
Mounted on each of said supports l i, is a bearing
1. A roll crusher for coal comprising a frame,
12. Extending between oppositely spaced bear 45 two pairs of spaced bearing supports mounted on
ings I2 are shafts l3 rotatably mounted thereon.
said frame with three of said supports slidably
Rot-atably carried by each of the two shafts I3,
adjustable on said frame and the other of said
is a roller l4.
supports ?xed to said frame, bearings mounted
Each of the shafts I3 is engaged at one end
on said supports, a pair of shafts rotatably
by a bevel gear l5. Said ‘bevel "gear l5, mesh 50 mounted on opposite bearings, a roller rotatably
with bevel pinions I6, which are connected to
carried by each of said shafts, said rollers posi
and moved by a drive shaft 11 connected to a
tioned opposite each other, and spaced relative
suitable source of power.
to each other :as desired, ‘by the slidable adjust
Three of my four bearing supports II, are
ment of said slidably mounted bearing supports,
slidably mounted on the frame and one ‘is ?xed 55 said rollers having interlocking teeth graduated
3
2,474,625
.4
from the highest at one end to the lowest at the
other end, with the largest tooth of one roller.
opposite the largest tooth of the other roller, the
smallest tooth of one roller opposite the smallest
tooth of the other roller and the intermediate
teeth of graduate sizes of one roller opposite
the intermediary teeth of corresponding sizes of
the other roller, said rollers adapted to; crush
intermediate teeth of graduate sizes of one
roller opposite the intermediary teeth of corre
sponding sizes of the other roller, said spaced
rollers adapted to receive coal dropped between
them and said teeth adapted to crush said coal
as it passes between the rollers to produce coal
having some pieces of desired maximum size with
other pieces of a smaller size to produce an ag
gregate having mixed different sizes for maxi
coal with said teeth to produce coal having some
pieces of desired maximum size with other pieces 10 mum burning e?icienoy.
of a smaller size to produce an aggregate having
THERON G. GEROW.
mixed different sizes for maximum burning ef
REFERENCES CITED
2. A coal crushing device comprising a, frame,
The following referenlces are of record in the
two pairs of spaced Ibearing supports mounted on 15 file of this patent:
said frame, with three of said supports slidably
UNITED STATES PATENTS
adjustable on said frame, and the other of said
supports ?xed to said frame, means for holding
Number
said supports in desired adjusted position, bear
ings mounted on said supports, a pair of shafts
rotatably mounted on opposite bearings, a roller
rotatably carried by each of said shafts, said
rollers positioned opposite each other, and spaced
relative to each other as desired by the slidable
adjustment of said slidably mounted supports,
means for driving said shafts and moving the
48,224
777,448
853,066
opposed rollers clockwise and counter-clockwise
respectively, said rollers having interlocking
from the highest on one end tothe lowest on
the other end, with the largest tooth of one
roller opposite the largest tooth 0f the other
roller, the smallest tooth of one roller opposite
the smallest tooth of the other roller and the
996,958
Wallick __________ __ July 4, 1911
Lloyd ___________ __ Nov. 18, 1913
Kennedy _________ __ ‘Oct. 19, 1920
Arrowood ________ __ May 10, 1927
1,613
so
Date
1,079,301
1,356,291
1,628,099
Number
teeth, said teeth on each roller being graduated
Name
Umgollz _________ __ June 13, 1865
Sturtevant _______ __ Dec. 13, 1904
Crellin ___________ __ May 7, 1907
12,451
20,481
143,746
417,176
539,846
FOREIGN PATENTS
Country
Date
Great Britain ____________ __ 1876
Great Britain _____ ‘Sept. 14, 1887
France ________ ____-_ Mar. 8,
Germany ________ __ Aug. 28,
France __________ __ Aug. 23,
France ___________ __ Apr. 7,
1918
1903
1910
1922
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