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Патент USA US2409863

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Oct; 2-2, 1946.
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A, F, HYDE
2,409,863:
MATERIAL CLEARING ATTACHMENT FOR JAW CRUSHING_MACHINES
Filed April 26; 1945 '
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2,409,863
Patented Oct. 22, 1946
UNITED STATES PATENT OFFICE
2,409,863
MATERIAL~ CLEARING ATTACHMENT FOR
JAW CRUSHJNG MACHINES
. Albert Fillmore Hyde, New York, N. Y.
1
Application April 26, 1945, Serial No. 590,490
1 Claim. (Cl. 241-265)
This invention relates to a clearing attach
ment for crushing machines such as used for
crushing stone.
It is a fact well known to those skilled in the
2
structure heretofore described is common in
crushing apparatus and that the present improve
ment can be used in connection With other types
of crushers wherein relatively movable jaws are
art that crushing apparatus frequently becomes 5 used.
choked by particles which become hung between
For the purpose of removing articles from be
the relatively movable jaws with the result that
tween the jaws if it is not possible to crush them,
the machine cannot again be operated until this
there is provided an attachment in the form of
obstruction has been removed. The removal of
a flexible length of material such as a chain 1 or
obstructions frequently becomes a tedious and 10 the like, one end of which is anchored to one side
laborious job causing lengthy delays and conse
of the body I as at 8 while the other end is in
quent reduction in production.
engagement with a jack 9. With these parts
An object of the present invention is to equip
properly placed, the chain 1 can be supported
a crushing machine with an attachment by which
freely between the jaws so that material to be
any obstruction which may become lodged bee 15 crushed can be directed into the space between
tween the jaws of the machine, can be forced out
the jaws and above and around this chain.
of position quickly so that the stoppage in produc
If some object incapable of being crushed be
tion will be minimized.
tween the jaws becomes deposited in the throat
A further object is to provide an attachment of
IU of the machine, all that is required is to ac
this character which can be applied readily to 20 tuate the jack 9 so as to draw the lifting device
crushing machines already in use.
9 upwardly relative to the jaws. Thus the object
With the foregoing and other objects in View
supported between the jaws and above the bottom
which will appear as the description proceeds, the
portion of the lifting device, will be pulled forcibly
invention consists of certain novel details of con
struction and combinations of parts hereinafter
more fully described and pointed out in the
claim, it being understood that changes may be
made in the construction and arrangement of
parts without departing from the spirit of the
invention as claimed.
In the accompanying drawing, the preferred
form of the invention has been shown.
In said drawing:
Figure 1 is a vertical section through a portion
of a crushing, machine having the present im
provement combined therewith.
Figure 2 is a section on line 2—2 of Figure 1.
in an upward direction so as to be easily removed.
Consequently, time heretofore wasted in removing
obstructions by the use of various kinds of tools,
etc., is saved and production is maintained with
out undesirable loss of time.
Under normal conditions, the lifting device 9
is of course in its lowermost position.
What is claimed is: '
The combination with opposed crushing jaws,
one of said jaws being movable toward and from
the other jaw, said jaws cooperating to provide
35 a throat for the reception of material to be
crushed therebetween, of a ?exible device an
chored at one end above and at one side of the
Referring to the ?gures by characters of ref
throat, said device having a loop depending be
erence, I designates the body of the crushing ma
tween the jaws at a plane parallel with the axis
chine which, in the structure illustrated, is pro 40 of movement of the movable jaw, and a lifting
vided with a ?xed jaw 2 and a movable jaw 3.
device connected to the other end of the device
This latter jaw is shown mounted on a pivot 4 at
constituting means for raising and lowering the
its upper end while the lower portion thereof is
loop relative to the jaws between which it is
actuated by a pitman 5 receiving motion from a
suspended, said loop being normally extended
rotatable eccentric 6 which can be driven by any 45 from one side to the other of the throat.
means desired. It is to be understood that the
ALBERT FILLMORE HYDE.
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