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1,354,861 .
Patented Oct. 5, 1920‘
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J'. TONGE.
_ HYDRAULIC BREAKING DOWN APPLIANCE.
APPLICATION FILED SEPT-16,1918.
1,354,861 .
Patented 0%. 5,1920;
2 SHEETS-SHEET 2. .
E17
UNITED STATES PATENT OFFICE.
JAMES TONGE, OF TVESTHOUGHTON, NEAR BOLTON, ENGLAND.
HYDRAULIC BREAKING-DilWN APFLIANCE.
Speci?cation of Letters Patent.
1,354,861.
Application ?led. September 16, 1918.
To aZZ whom it may concern:
_
lie it known that I, JAMES ToNsn, a sub
Patented Oct. 5, 1920.
Serial No. 254,344.
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ton affords a longer travel than heretofore,
while the simple or single travel type of pis
dent of YVesthoughton, near Bolton, in the
ton. may be formed in one piece.
_ In the accompanying drawings, which 60
county of Lancaster, England, have invent
illustrate my invention :—
ed a certain new and useful Improvement
Figure l is a sectional end elevation of
a hydraulic press and one of the rams, this
ject of the King of Great Britain, and resi
in l'lydraulic Breaking-Down Appliances,
of which the following description, having latter being of simple form.
reference to the accompanyingdrawings, is
a speci?cation.
lily invention relates to hydraulic presses,
particularly for use in the breaking down of
coal or other minerals, in breaking up con
crete blocks such as engine beds, and for
other similar purposes. This class of hy
draulic press comprises a body part for in
sertion in an opening previously formed by
boring or the like. ‘Vithin said body part
Fig. 2 is a similar view to Fig. 1 but
shows the ram in section and in its extended
position.
_ Fig. 3 is a side sectional elevation show
ingthree of said rams, two in their closed
positions with one in section, and the other
when extended, although in actual practice
these rams of course occupy approximately
the same positions within the body of the
press.
The channels for supplying water
to the cylinders are not shown, as they do
tons or rams. These latter, on water being not form part of my invention.
is or are mounted one or more series of pis
Fig. -l is a plan of my improved press.
forced into said main or body part, travel
Fig. 5 is a cross sectional elevation of the
in directions somewhat radially thereof,
surh pistons being either simple or single body-of the hydraulic press before the rams
travel pistons, or those of multiple form are placed in position therein, showing one 80
which are arranged in two or more parts
each of which has a traverse separate from
that or those to which it is connected. Here~
of the openings into which a ram has to be
nttec .
Fig. 6 is an elevation of the body of the ‘
tofore in connection with these hydraulic hydraulic press.
Fig. 7 is a plan thereof.
presses it has been customary to limit the
travel outwardly of each of the single pis~
-
tons or each of the main pistons (or that cover hereinafter described.
Fig. 9 is a sectional elevation thereof.
which has least travel) by inserting in the
Similar letters and ?gures of reference in
body part a sliding plate or plates the inner
surface of which is of the same diameter as dicate like parts throughout the several
" that of the main part of the piston or ram.
A flange mounted on such piston comes into
contact with said plate thus to effect the
limiting of its movement outwardly as de
sired. It has been found that these devices
40 are somewhat diliicult to manufacture and
assemble, in addition to which the amount
of the travel of the piston is to some extent
restricted. It is also necessary, in order to
85
Fig. 8 is a plan of an additional plate or
views.
90
-
In carrying my invention into effect I
form the body part a of the press somewhat
in the usual manner, that is, it has a series
of cylinders 7) extending on one side of said
body part (as shown by the drawings) or if
desired it may have one series extending in
one direction and another series extending
in the opposite direction, this alternative
effect the assembling of the parts, to form form not being illustrated as it is common
the piston, when such has only a single and well known. Usually each cylinder b
travel, in two portions, one of which has to is of the same diameter throughout its depth,
100
be screwed into the other after the latter however I now form these cylinders b of
has been placed in position within its cylin two diameters the body portion being of
der. The object of my present invention is larger diameter than the upper or outer
50
to produce a hydraulic press of an improved part b2 which latter forms an inwardly ex
construction, such improved construction tending ?ange around a portion of the outer
consisting‘in forming the stop plate for end of said cylinder 1). It is this flange 62
limiting the piston’s travel integrally with which forms the stop or limits the travel of
the body part of the press, beneath or in the piston or ram 0 the ?ange c1 on which
55 proximity to which the single piston or com
pound piston may easily be slid. The pis
?ts against said ?ange b2 when said piston
has reached the extent of its travel. A hori
110
'2.
1,354,861
zontally disposed slot or opening 713 extends the bottom of the cylinder to the lower sur
60
from beneath said ?ange b2 to the outside ‘face of the stop plate. This causes the ram
of the body part a, this opening being of ' or piston to have to be placed in position
the same diameter or width as the larger
within the cylinder before said plate was
diameter 61 of the cylinder 1) and also of the slid into its slot or opening, hence said pis
same diameter as the ?ange c1 on the piston ton had to be formed in two parts, one part
or-ramv'c. Said slot or opening 63 is of a being screwed upon the other after the lat
l0
l5
depth approximately that of the thickness ter had been assembled in position, whereas
of said ?ange 01. Another opening 6* (ad with my present invention the length or
joining the slot 53) is formed through the depth of the piston or ram does not inter
body part a this being of the same width fere with the assembling of the several parts,
as'the diameter of thebody part of the pis thus it can be formedin one piece as illus
ton a, It will be seen that the piston 0 may trated. Further than this, by the ?ange ‘or
readily be slid into its position within or stop 62 being at the periphery of the hy
above the cylinder 1) by the ?ange c1 passing draulic press a longer traverse is given to
through the slot 63 and the body part the piston or rams than has heretofore been
through the opening btand when it reaches the case._
a positionwithin or above the cylinder 1)
it may then pass downwardly or toward the
65
70
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I have ,onlyillustrated a single or simple
ram 01' one having a single traverse, but it
1
will readily be understood that duplex rams
The hydraulic leathers (Z may have'plain or those having a greater number of sepa
surfaces for contact with the lower surfaces rate traverses maybe employed, although I
center of the press.
of the pistons or rams c and they may be
do not illustrate these latter as they are well
pressed into the cylinders Z2 through the known and the traverse of the main portion
'2
5
ends thereof or passed through the grooves of such pistons or rams'is similar to that
63 prior to the insertion otsaid rams. c of a‘ piston of ‘single travel.
85
‘which will afterward press them ?rmly
“Such being the nature and object of my
against the bases of the cylinders b; , Or I said invention, what I claim is :4—
may fasten said leathers d to the rams 0
1. In a hydraulic breaking down appli
3 0. for which purpose I form openingspcen
ance,. a body part, a series of cylinders
trally therein through which may pass, the formed therein, pistons operating in said
90
cylinders, ?anges on said pistons, stop pieces
cure said leathers? in position upon said pis~ for said ?anges formed integrally with. said
'tons'after having-been placed within said body part, and openings and grooves formed
cylinders b I form openings 65 in the bases in said body part through which the pistons
screwed projections 02 on said rams.‘ To se
40
of the cylinders Z) for the reception of the
nuts it, said openings being of the same
shape as said nuts, thus after the pistons 0
have been placed in position within said
cylinders Z) they may be rotated for the
purpose of causing the projecting screwed
parts 02 to be screwed within saidonuts h
which latter thus will then hold the said
leathers ?rmly in position.
are slid when being assembled in position.
2. ‘In a hydraulic breaking-down appli
ance, a body part, cylinders formed therein,
pistons operating in said cylinders, screwed
projections on said cylinders, hydraulic
packing leathers, nuts for ?tting’ over said
screwed projections, and openings formed in
‘said body party at the lower ends’ of the cyl
100
inders to prevent rotation of said nuts.
I mount plates 70 having shoulders 701 each _ 3. In a hydraulic breakingjdown appli~
plate being used to. fill both the slots 63 and ance, a body part, cylinders formed therein,
openings 1)4 after the parts, have been .as pistons operating in said cylinders, integral
105
sembled, they being retained in position by ?anges or stop pieces for said pistons, open
refuse are prevented fromentering the cyl
ings formed in said body part to allow the
assembling of said pistons, and plates for
inders?) and leakage of the pressure water
covering said, openings.
nuts 7:2‘ or the like, thus borings or other
50
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in the cylinders b is effectually prevented.
These plates 70 also guide the pistons (2 in
their movements and effectually prevent
them from tilting in the cylinders b.
,
Hereto'fore‘ where sliding plates have been
employed to limit the motion of the pistons
formed integrally withthe body part at the
outer ends of said cylinders and plates pro!
vided with‘ ?anges corresponding to those
or rams, the amount of such motion or trav
formed at the outer ends of the ‘cylinders.
erse has been regulated by the distance from
110
4. In. a hydraulic breaking-clown appli
ance, a body part, cylinders formedv therein,
pistons operating in said cylinders, ?anges
<
JAMES TONGE.
115