Improvements in and relating to Horizontal Telescopic Presses.
Year: 1892

page_text: Date of Application, 2nd Feb., 1892-Accepted, 19th Mar., 1892
COMPLETE SPECIFICATION.
Improvements in and relating to Horizontal Telescopic Presses.
We, ALEXANDER AUGUSTUS DIFFEY and ALFRED GOLDIE RYLEY, citizens
of the United States of America, residing at Brinkley, in the County of Monroe,
and State of Arkansas, one of the United States of America, Gentlemen, do hereby
declare the nature of this invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Our invention relates, generally, to presses for extracting liquids from solids, and,
particularly, to that class of presses in which the parts of the press-boxes are con-
structed and arranged to telescope horizontally, and in which the plungers on the
backs of said boxes fit closely into the boxes in front thereof; and it consists in the
improved construction and arrangement or combination of parts hereinafter fully
disclosed in the description, drawings, and claims.
The objects of our invention are, first, to provide press-boxes of an improved
shape and construction, whereby they will offer the least possible resistance to the
removal of the compressed material or cakes therefrom and necessitate the use of
only one door to each box for filling and discharging the same; second, to providė
improved means for starting the cakes from said press-boxes, so that they may be
readily and quickly removed from the tops thereof, and thus avoid coming in
contact with dripping oil, which occurs in boxes in which the cakes are removed
from their bottoms; third, to provide improved devices for opening and closing
the doors at the upper open ends of said boxes; fourth, to provide improved
devices for removably securing the drain-plates to the press-boxes and plungers;
fifth, to improve the construction of the chambers for the movable blocks in such
manner as to prevent accumulation beneath said blocks of any of the material
being compressed; sixth, to provide improved devices for operating said movable
blocks; seventh, to so construct the outer sides of the rear walls of the chambers
as to facilitate the escape of oil from the drain-plates; eighth, to provide improved
drain-plates and means for holding the filter-cloths upon their faces; and, ninth, to
provide novel means for introducing steam into the boxes for facilitating the
removal of the compressed material therefrom.
These objects are accomplished by the improved construction of press-box and
plunger illustrated in the accompanying drawings forming part of this Speci-
fication, in which the same reference numerals indicate the same parts, and in
which-
Figure 1 represents a face or front view of a press-box constructed in accordance
with our invention, the same also representing its sides as being both converged
downwardly and diverged or flared forwardly, the foot or treadle lever mechanism
for operating the movable block, and the link and cam-lever fastening for the door
which closes and opens the upper end of said box;
Figure 2, a top plan view of the plunger, and, also of the press-box, with its
door open and partly broken away;
Figure 3, a vertical section of the press-box and plunger on the dotted line x--x
of Figure 1;
Figure 4, a top plan view of the rectangular chamber for the movable block,
detached;
Figure 5, a vertical section through the back of the box on the line - of
Figure 2, illustrating the passages for steam as a heating agent;
Figure 6, a rear face view of the drain-plate, detached;
Figure 7, a vertical longitudinal section of the rectangular chamber, showing
also the movable block and some of its actuating devices in front elevation; and

page_text: Figure 8, a perspective view of the hand-plate or separator for removing the
compressed cake or material from the filter-cloth on the front face of the drain-
plate of the press-box.
In the drawings we have illustrated only one press-box and plunger, but our
improvements are to be applied to a series thereof, arranged horizontally. The
numeral, 1, indicates the press-box, which is provided on its back or rear side
with the plunger, 2, which fits closely within the next rear or succeeding box of
the series, and with the downwardly converging sides, 3, which are arranged at
greater distances apart at their upper than at their lower ends, whereby very little
frictional resistance is offered to starting and moving the compressed material or
cake upwardly and outwardly from the open top of said box; also, the sides of
said box are forwardly diverged or flared, so that, should said cake at any time
adhere to the filter-cloth, 4, on the rear face of the drain-plate, 5, of the plunger 2,
as the latter recedes from the box in front thereof, there can be no pressure against
the sides of said box by the edges of said cake, as it will be then separated from
or loosened upon the filter-cloth, 6, on the front face of the drain-plate, 7, of the
press-box and ready to be upwardly removed. However, it is generally the fact,
in the operation of the press, that the cake does not adhere to the filter-cloth of
the plunger, but remains within the box, and therefore it has been found necessary
to provide the hand-plate or separator, 8, for effecting its removal from the filter-
cloth on the front face of the drain-plate of the press-box. For this purpose the
separator is forced down between the latter filter-cloth and the compressed cake;
also, it may be either made of wood or metal, preferably the latter, and is of a shape
corresponding to the interior of the box, and, also, for convenience of operation or
handling, it is provided with the hand loop, 9.
As the sides of the press-box sometimes become rough from friction and wear,
resulting in the necessity for its removal for repair or renewal, which is a source of
considerable expense and delay, it has been found necessary to overcome this
objection. This has been accomplished by securing to the inner surfaces of the
downwardly-converging and forwardly-flared sides, 3, of said press-box the metallic
plates or linings, 31, which are removably secured to said sides by screws or the
like, so that they can be taken out and polished, when they become worn or
roughened.
The door, 10, at the upper end of the press-box is hinged at one end to the
lug, 10', is provided at its other end with the curved and slotted tongue, 11, and
is adapted to be opened and closed by the link, 12 and the cam-lever, 13, which are
so arranged that, when said link is turned upwardly and said lever downwardly,
the door will be securely fastened and prevented from being forced open by the
pressure of the material within the box. This link is pivoted at one end to the
side of the box which is opposite to that on which the door is hinged, while
the cam-lever is loosely held by the other end of said link. In effecting the
fastening of the door, the link is moved upwardly in the arc of a circle and passed
into the slotted tongue, 11, which extends beyond the end of said door.
these devices the door can be rapidly opened and closed.
With
The inside or front face of the press-box and the rear face of the plunger are
formed with the dove-tailed grooves, 14, for receiving the correspondingly-shaped
short lugs or slats, 15, on the rear and front faces of the drain-plates 7 and 5 of
said box and plunger, whereby said plates are removably fitted in place. In order
to prevent upward movement of these plates when the press is in operation and
permit of their removal, when desired, the screws 16 are inserted in the upper ends
of the box and plunger, and so arranged that their large heads project over the
upper ends of said short lugs or slats. These plates are prevented from downward
movement by the horizontal screws or pins, 161, passing through the lower ends
thereof, as shown in Figure 1.
The lower end of the press-box is provided with the rectangular chamber, 17,
having in its bottom the series of ribs, 18, which are preferably A-shaped at their
upper edges and so constructed and arranged as to leave the outlets, 19, between

page_text: them through which any material escaping from the box will pass and be pre-
vented from lodging beneath and holding up the vertically movable block 20 in
line with the lower end of the plunger. With these ribs and outlets at the
bottom of said chamber a smooth and even seat is provided for said block,
which is thus never in danger of being struck and injured by the plunger working
thereover. The rear wall of this chamber is inclined or beveled downwardly and
rearwardly, as at 21, to form a free passage for the escape of the oil from the lower
end of the rear face of the drain-plate 7, of the press-box, 1.
The vertically movable block 20 fits loosely within the rectangular chamber 17
and is provided on its under side with the lug or stud, 22, which projects down-
wardly through the opening 23 in the bottom of said chamber. A lever 24 is
pivoted to a stud 25, projecting downwardly from the bottom of said chamber
and is provided with a treadle 26 at the end of its outer arm, its inner arm being
pivotally connected to the lower end of the stud, 22. A spiral spring 27 is
fastened at its lower end to the outer arm of said lever and its upper end is
secured to the pin 28 on the side of the box. The tendency of this spring is to
hold the movable block normally down upon the bottom of said chamber, but by
depressing the treadle lever 24, the movable block will be raised and thus start
the cake of material upward or toward the open top of the box, whence it can be
readily and quickly removed.
The drain-plates 5 and 7 on the rear face of the plunger, 2, and the front face of
the press-box 1 are shaped to conform to the contour of said plunger and box.
Each of these plates is formed with the vertical channels or grooves, 29, in its rear
face and with the small perforations 30 passing through said plates and terminating
in said grooves. The oil or other liquid is forced through these perforations, passing
down in said channels or grooves and is delivered upon the downwardly and
rearwardly inclined rear wall, 21 of the chamber, 17, whence it passes into any
suitable receptacle; also, on the rear faces of said plates, near their upper and
lower ends, are formed the horizontal or cross grooves, 31, which assist in carrying the
oil from said vertical grooves to the dovetailed grooves, 14, thereby allowing the
oil to escape freely for effecting perfect drainage.
On the rear and front faces of the drain-plates 5 and 7 are secured the filter-
cloths 4 and 6, which are sewed thereto by the wire stitches, 32, which are passed
in and out through the small perforations, 30, and laid along the bottoms of the
vertical grooves 29 and over the outer surfaces of said filter-cloths in such manner
that they will offer no resistance to the insertion and removal of said plates to and
from their operative positions; also, these wire stitches prevent said cloths from
being pulled off said plates and, also, from wear by the separator, 8, which is
frequently passed down over the cloths for separating the cakes of compressed
material adhering thereto; also, the cloth on the drain-plate in the press-box may
be further protected from wear by the use of one or more metal strips secured
lengthwise thereof; but at times their use is not desirable, as they may obstruct
the perfect drainage of the cloth. The narrow metallic strip or plate, 33, extended
across the filter-cloth at the upper end of the drain-plate, 7, is used for the purpose
of protecting the upper edge of said cloth from injury during the use or insertion
of the separator, 8; also, the similar narrow strip, 34, across the lower edge of said
cloth and drain-plate is employed for preventing the movable block 20 from coming
into contact with and injuring the lower edge of said cloth.
It has been found in practice that the use of heat in press-boxes not only renders
the cakes of compressed material easy of discharge or removal therefrom, but that
it results in a better and more copious yield of oil, especially when pressing cotton-
seed and linseed. Therefore, as shown in Figure 5, the rear wall or body, 34', of
the press-box is formed with the vertical passage, 35, and the horizontal passages, 36,
which lead from one side of said box, and communicate at their inner ends with
said vertical passage, into which, at its upper end, is fitted the removable plug, 37.
These side or horizontal passages are to be provided with suitable nipples for the

page_text: Ine supply of neat oỊ
connection of hose or pipes leading to the source of steam.
steam may be continuous or intermittent, as desired or necessary.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a horizontal telescopic press, a press-box provided with downwardly-
converging and forwardly diverging or flaring sides, substantially as described.
2. In a horizontal telescopic press, a press-box provided with downwardly-
converging and forwardly diverging or flaring sides, and with a plunger secured
to the back thereof, and formed with similarly shaped sides, substantially as
described.
3. In a horizontal telescopic press, a press-box provided with downwardly-
converging and forwardly diverging or flaring sides, and metallic plates or linings
therefor, substantially as described.
4. In a horizontal telescopic press, a press-box provided with downwardly-
converging and forwardly diverging or flaring sides, an open top, a hinged door,
and devices for opening and closing said door, substantially as described.
5. In a horizontal telescopic press, the combination, with a press-box having an open
upper end, having downwardly-converging and forwardly-diverging sides, of a door
hinged at one end to the top of said box and provided at its other end with a
slotted tongue, a link pivoted at one end to the side of said box and adapted to
enter into and be released from said slotted tongue, and a cam lever pivoted to said
link and adapted to be depressed upon and released from said slotted tongue of the
door, substantially as described.
6. In a horizontal telescopic press, the combination, with a press-box or plunger
formed with dove-tailed grooves, of a drain-plate provided with short correspondingly-
shaped seats fitted in said grooves for removably holding said plate in place,
substantially as described.
7. In a horizontal telescopic press, the combination, with a press-box, or plunger
formed with dove-tailed grooves, of a drain plate provided with short, corre-
spondingly-shaped seats fitted in said grooves for removably holding said plate in
place, and the screws having large heads projecting over the upper ends of said
short seats, substantially as and for the purpose described.
8. In a horizontal telescopic press, the combination, with a press-box provided
with a rectangular chamber at its lower end, of the movable block arranged within
said chamber, the treadle lever pivoted to the bottom of said chamber and having its
inner arm connected to said block, and a spiral spring connecting the outer arm of
said lever to the side of said box, substantially as described.
9. In a horizontal telescopic press, the combination with a press-box provided
with a rectangular chamber at its lower end having in its bottom a series of
downwardly inclined ribs, with outlets between the same, of a movable block
arranged within said chamber, and means for raising and lowering said block,
substantially as described.
10. In a horizontal telescopic press, the combination, with the press-box
provided with the rectangular chamber at its lower end having a downwardly
inclined rear wall for facilitating the escape of oil, of a drain-plate secured within
said box and formed with small perforations, and with vertical grooves in its
rear face for delivering the oil upon said inclined rear wall, substantially as
described.
11. In a horizontal telescopic press, the combination, with the press-box provided
with the rectangular chamber at its lower end having a downwardly inclined rear
wall for facilitating the escape of oil, of a drain-plate secured within said box and
formed, with small perforations, and with vertical and transverse grooves in its
rear face for delivering the oil upon said inclined rear wall, substantially as
described.

page_text: 12. In a horizontal telescopic press, a drain-plate formed with series of vertical
and horizontal grooves in its rear face, and a series of perforations intersecting said
grooves, the horizontal grooves being only arranged near the upper and lower ends
of said plate, substantially as described.
13. In a horizontal telescopic press, the combination with a perforated drain-
plate, formed with both vertical and horizontal grooves in one face and provided
on its opposite face with a filter-cloth, of wire stitches for securing said cloth in
place, said stitches being arranged to pass over said cloth and lie in the bottoms of
said grooves, substantially as and for the purpose described.
14. In a horizontal telescopic press, the combination, with a perforated drain-
plate formed with grooves in one face and provided on its opposite face with a filter-
cloth, of narrow, metallic strips or plates secured across said cloth, near the upper
and lower ends of the front face of said plate, substantially as described.
15. In a horizontal telescopic press, the combination, with a perforated drain
plate provided on one face with a filter-cloth, of wire stitches for securing said
cloth in place, and a separator shaped to conform to the interior of the box,
substantially as and for the purpose described.
16. In a horizontal telescopic press, a press-box having its rear wall or body
formed with a vertical passage having a removable plug fitted in its upper end and
with horizontal passages communicating at their inner ends with said vertical
passage for the admission of steam for heating said box, substantially as and for the
purpose described.
Dated this 12th day of Je v
1000
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.