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Патент USA US2127027

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Aug- 16, 1938- V
c. v. HALLENBECK
2,127,027 ?
STONE BREAKER
Filed May 2; 1955
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2 Sheets-Sheet 1
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1N VENTOR.
CHAPL �K HALLE/VEECA?
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ATTORNEY.
Aug- 16, 1933'
I
c. v. HALLENBECK , _
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2,127,027
STONE BREAKER
Filed May 2, 1935
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2 Sheets-Sheet 2
'INVENTOR.
(WA/PL �M HA1: fA/BfC/f
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BY
JZIORNEY.
2,127,027
Patented Aug. 16, 1938
UNITED STATES PATENT OFFICE
2,127,027
STONE BREAKER
Charles V. Hallenbeck, Denver, 0010.
Application May 2, 1935, Serial No. 19,444
1 Claim. (CI. 83-53)
This invention relates to improvements in rock
breakers of the type employed for breaking rock
for macadam, for aggregate and for other pur
located underneath the jaw for the purpose of re
The principal object of this invention, generally
ducing the total height of the machine.
The above and other objects that will become
apparent as this description proceeds and to
which attention will be called, are attained by
stated, is to produce a breaker mechanism com
prising a stationary jaw and a movable jaw, and
in which the movable jaw has a movement, at the
parts that will now be described and reference
for this purpose will be had to the accompanying
poses.
edge where the material is fed to the crusher,
10 which is preponderantly a movement towards and
away from the stationary jaw was to produce a
pinching effect only on the large rocks, and which
movement is combined with a downward com
ponent which increases towards the discharge
15 edge, while the transverse movement decreases,
until at the point of material discharge, the sur
face of the movable jaw has an up and down
movement only.
.
Experience has shown that large rocks and
boulders do not need a downward movement of
the crushing jaw to feed them into the crusher
jaws, but that they do need a maximum move
ment towards and away from the stationary jaw
to produce the necessary ?pinching? effect. As
the stones are broken into small fragments, they
require less ?pinching? action and a greater
amount of progressive movement, and my im
proved crusher is designed to produce such action.
The objects of this invention more speci?cally
stated are:
To produce a rock crusher that operates with
the least amount of ineffective movement;
To reduce the weight of the movable parts and
the actuating mechanism to a minimum so as to
35
reduce vibration;
.
To reduce friction? to a minimum;
To simplify the construction by reducing the
sizes and number of machined parts.
It is also an object of this invention to produce
a rock breaker of such construction that it can
be easily erected at any place where it is to be
used so as to reduce the cost ?and labor required
to change the location thereof.
, ~
Another object is to provide a rock breaker of
45 such construction that the feed opening shall be
5O
means of a construction and an arrangement of
drawings in which the preferred construction of
1O
the machine has been illustrated, and in which
Figure 1 is a top plan View of the machine.
Figure 2 is a vertical section taken on line 2-?2,
Figure 1.
Figure 3 is a section taken on line 3-?3, Fig
15
ure 2.
Figure 4 is a section taken on line 4-4, Figure
2, and
.
Figure 5 is a side elevation of the machine, a
portion of the side Wall being broken away to
show the course of the material through the jaws. 20
The machine consists of a massive cast steel
frame having spaced parallel side Walls 6 and 1,
connected at their front edges by an end wall 8
whose surface 9 is downwardly and forwardly in
clined. Along the lower edge of the end wall is a 25
flange Ill whose upper edge is inclined so as to co
operate with the inclined lower edge of a remov
able crusher plate II. A removable wedge I2 is
secured to the end wall by means of bolts l3, and
serves to attach the crusher plate to the sta 30
tionary jaw.
The sides 6 and ?l are connected at their rear
ends by an end wall I4 whose upper edge has a
.wide flange l5 that projects to both sides thereof,
and which has an opening l6 through which the 35
pitman l'l extends. Sides 6 and ?I extend rear
wardly beyond the end wall l4 and are provided
with bearings l8 for the ends of shaft 19, and
with a central bearing l8a.
The rearwardly extending portions of the side
walls are connected by an end wall 20. The sides
6 and ?I and the end Wall 20 have wide ?anges 2|
along their lower edges on which the frame rests,
and these are connected near the front end of the
frame by a transverse flange 22. The ends of the 45
side ?anges 2| are curved upwardly in the form
as low as practicable so as to facilitate the feeding
of sled runners so as to facilitate the movement
of material thereto.
of the machine.
A further object is to provide a rock breaker in
which the stationary jaw shall have a crusher
wardly extending spaced lugs 23 that are perfo
surface that is downwardly and forwardly inclined
to such an extent that it will be self-cleaning.
A still further object is to provide a rock breaker
of such construction that the bearings and mech
55 anism connected with the movable jaw shall be
The transverse ?ange 22 is provided with up
rated for the reception of a shaft 24 which also
extends through openings in side walls 6 and 1.
A movable jaw 25 is provided near its lower and
forward end with downwardly extending lugs 26
that have openings through which the shaft 24 55
2
2,127,027
passes, and which are positioned between the lugs
23 and the side walls 6 and 'l, as shown in Fig
ure 4.
The movable jaw is provided near its upper edge
with downwardly extending spaced lugs that are
perforated for the reception of a shaft or pivot
pin 28, which also extends through an opening in
the upper end of pitman ll, as shown most clearly
in Figure 3.
10
The pitman has its lower end branched and the
two branches 29 are positioned between bearings
l8 and 18a and have bearings for the reception of
the eccentric cylindrical portions 30 of the shaft
l9. When shaft l9 rotates the jaw 25 will be
rocked about the pivot 24 towards and away from
the stationary jaw member. The upper surface
of the movable jaw has a ?ange Illa that 00
operates with the lower edge of the removable
crusher plate 3!, whose upper edge is secured to
20 the jaw by means of a wedge l2a, as shown in
Figure 2.
A shaft 32 extends between the sides 6 and 7
and carries a roller 33 for the conveyor belt 38.
The shaft l9 has each end provided with a heavy
?y wheel 34, and one of these may have a pulley
35 to which power can be transmitted for operat
ing the machine, or the belt may be applied di
rectly to one of the ?y wheels.
When shaft I9 is rotated in either direction,
the movable jaw is rocked about its pivot 24
through the action of the pitman and the co
centrics 30, and every point in the movable jaw
will move in the arc of a circle whose center is
the center the shaft 24, as indicated by arrows in
Figure 2.
The movable jaw is provided with upwardly ex
tending sides 36 which prevent crushed material
or broken rock from falling over the edges of the
jaw, and this prevents material from piling up
underneath the jaw and protects the bearings
located underneath the jaw.
When rocks are fed into the feed opening and
pass or project into the space between the adja
cent surfaces of the crushing plates H and 3|,
they will drop down as far as their size will per
mit, and when the movable jaw approaches the
stationary jaw, the- rocks will be broken into
smaller pieces which will move farther down and
will be again broken, and this will continue until
the rocks have been reduced to such small pieces
that they will pass through the space between
the lower edges of the jaws and crusher plates
and onto the conveyor belt.
If a large rock, like that indicated by reference
numeral 37 in Figure 5, is delivered to the jaws,
it will be raised and lowered by the movement of
the jaw 25, and will be turned until the jaws suc
ceed in getting a hold so as to break off a piece,
after which the operation will continue until the
large piece has been reduced in size sufficiently to
permit the pieces to pass into the space between
the jaws.
At this point, attention will be called to a very
important feature of the construction, namely,
the inclination of the jaws. From Figures 2 and
5, it will be seen that the crushing surface of the
stationary jaw is downwardly and forwardly in
clined, and this prevents crushed rocks and clay
from sticking to the crushing surface as it or
dinarily does if the crushing surface of the sta
tionary jaw is vertical.
Since the material rests on the upper surface
of the movable jaw, it is evident that the move
ment of material along the surface thereof will
serve to keep the material from sticking. By in 10
clining the crushing surfaces of the jaws as
shown in the drawings, the height of the machine
can also be greatly reduced with the consequent
advantage to be derived therefrom.
The movement of the jaw 25, which is obtained 15
by rocking it about a pivot located near its lower
end and to the rear of the crushing surface, gives
a downward movement to the material ?near the
discharge edges of the jaws and an upward move
ment at the top which facilitates the crushing or 20
breaking. The downward movement of the sur
face of the crushing jaw increases progressively
towards the discharge edges, while the movement
towards and away from the stationary plate de
creases downwardly. This greatly reduces wear
and gives improved ef?ciency as the downward
component is not necessary until the rock has
been reduced to small particles.
The sides 36 of the movable jaw overlap the
edges of the stationary jaw, and these sides serve
to protect the sides of the frame from abrasion
and obviates the necessity of machined surfaces
and liner plates.
A rock breaker like the one described above
and shown on the drawings can be easily set up ?i
at the place where it is to be used, and being
provided with inclined jaws it can be made very
low so that the rocks can be easily fed thereto,
and by supplying it with a conveyor as shown,
the discharge from the crusher jaws can be very
40
low as the material will not pile up beneath the
laws.
What I claim and desire to secure by Letters
Patent is:
A rock breaker comprising a housing having 45
upwardly-ranging extensions of its base provid
ing runners for facilitating its sliding movement
over a surface on which it rests and having a dis
charge outlet adjacent its bottom and a feed in
let above the same, as oscillatory jaw disposed in 1 -
an inclined position between the inlet and the
outlet with its breaker surface uppermost, a sta
tionary jaw disposed in overhanging relation to
the oscillatory jaw and having its breaker surface
facing the latter jaw, the oscillatory jaw being 1
movable about an axis at its lower end, an ec
centric journalled in the housing, a pitman on the
eccentric in pivotal connection with and extend
ing at right angles to the oscillatory jaw, and a
movable conveyor disposed above the bottom CT)
of the housing directly beneath the discharge out
let to receive the product descending there
through.
CHARLES V. HALLENBECK.
135
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