Improvements in Presses for Copying, Printing, Packing, Stamping, Moulding, and the like.
Year: 1887

page_text: Improvements in Presses for Copying, Printing, Packing, Stamping,
Moulding, and the like.
1, JETHRO MARSH, of 21 Belgrave Street, in the Parish of Stepney County
of Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
In that form of my invention suitable for copying letters and other documents by
pressing them between the leaves of a copy book, and which form is well adapted for
illustrating the principle of every other form: A lever-hereinafter named the forked
lever-preferably forked, with a distance between the legs of the fork at least equal to
the width of platten of the press, and having at the lower end of each of the legs
of the fork, its centre line in the plane of the legs extending outwardly from the centre
of the fork, a pin or journal which rotates in a bearing fixed to the bed of the press.
In the lower part of the cross piece of the forked lever, and midway between the legs,
the upper end of a link-hereinafter named the compression link-is attached by
means of a pin which passes through it and through the sides of a recess in the cross
piece, the link rotating about the pin in a plane at right angles to the cross piece. In
the top side of the platten a similar recess is formed to receive the lower end of the
compression link which is fastened to it in the same manner as the upper end is to the
cross-piece of the forked lever.
The compression link may be so made that its length can be increased or decreased
at will by turning a right and left hand screwed nut which engages the upper and
lower parts of the link, or it may be made solid, adjustment being obtained by inserting
packing pieces under or above the book between the bed and platten.
.
To guide the platten in its ascent from the book, a joint is attached to one edge of
the platten, so that when the forked lever is pushed back and down, the platten will
rotate about the centre of the joint in the plane of motion of the compression link. The
pin of the joint is preferably allowed to slide vertically to allow for variations in the
thickness of copy books.

page_text: The mode of operating the press is as follows:-The top of the forked lever, which
is of a form suitable for grasping with the hand, is pushed back and down, rotating
about the centre of the pins or journals at the lower end of the legs, drawing with it
the upper end of the compression link, which in turn raises the platten, which platten
rotates about the centre of the pin in the joint at its edge, the. copy book can then be
put in its place, when the operation just described is reversed, the forked lever being
drawn up until it stands perpendicular to the bed, and the compression link is sustaining
and transmitting its greatest pressure. Stops or lugs on the legs of the forked lever,
and corresponding stops or lugs on the bearings prevent the former passing the vertical
except for a distance sufficient to prevent its repassing until pushed back to again open
the press.
When required for printing purposes, a case containing the type, engraving or other
surface for printing from, arranged for printing, is inserted between the bed and the
platten instead of the copy book as described above-preferably sliding in vee grooves
or rollers fixed to the bed, which in this case is extended so as to allow the type case to
be run out upon it far enough to enable the operator to open the case for the
purpose of inking the printing surface, and inserting blank paper or other surface to
be printed.
When used as a packing press, the platten will be made of the size and shape to
suit the package it is desired to compress, while upon the bed beneath the press will
be placed the box or mould of required size and shape to form the other sides of the
package.
The press may be used also for stamping metal, soap or other yielding substances,
by substituting for the platten a suitable holder for dies, a die or a matrix being placed
on the bed beneath.
I have described the press as standing with the bed in a horizontal position, but it
may stand with the bed vertical or at any angle.

page_text: Improvements in Presses for Copying, Printing, Packing, Stamping,
Moulding, and the like.
I, JETHRO MARSH, of 21 Belgrave Street in the parish of Stepney, County of
Middlesex, Engineer, 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 :-
In the accompanying drawings, which are made to scale, I do not limit myself to the
sizes or proportions there given, in the manufacture and use of this invention.
The reference letters here mentioned, unless it is otherwise specified, refer to sheet 1
of the drawings, except in the claims, in which the reference letters allude to all of
the drawings upon which such letters appear.
In that form of my invention suitable for copying letters and other documents by
pressing them between the leaves of a letter copying book, and which is well adapted
for illustrating the principle and construction of every other form:
A forked or U shaped lever, denoted in the drawings by the letter "A," with a
distance between the legs of the fork at least equal to the width of the platten C, of
the press, and having at the end of each of the legs, its centre line in the plane of
the legs, an eye which works on a pin or journal a, which pin or journal may be
screwed into or made solid with the lug b, of the bed D, of the press. In Sheet 1, the
pin or journal a, is shown extending inwardly toward the centre of the press, the legs
of the fork A, being sprung into their place upon the pins a, a.
Instead of having
eyes made in the ends of the forked leyer A, I may have recesses in, or holes through
the lugs or bosses b, pins fixed to the ends of the legs of the forked lever extending
outwardly from, or inwardly towards the centre of the press, engaging in them. Or I
may have an ordinary joint the ends of the forked lever made as shown, but the bosses
or lugs b, made longer, and slotted midway in their length, the slots at a right angle
to the axis of the bosses, the width of each slot being equal to the thickness of one end
of the forked lever, a hole being made through both boss and end of lever, in which a
pin is placed in the usual manner.
In the lower part of the cross piece c, of the forked lever A, and midway between
the legs, one end of a link B, (hereinafter named the compression link) is attached by
means of a pin which passes through it, and through bosses d, d, upon each side of it,
the ends bring burred or rivetted up to keep it in place. (This method is shown at
in Sheet 2). In the method shown in Sheet 1, in section at fig. 2, a hole is drilled
through the end of the compression link, about which the link vibrates when in place,
another hole is drilled at g, at a right angle to the first, but in the same plane, two
e,

page_text: pins e, e, each equal in length to half the length of the boss f, at the end of the com-
pression link are then put in the first hole, and the boss f, of the link then placed in the
slot formed to receive it at c, in the lever A. With a pointed wire inserted into the
second hole g, the pins e, e, can be pushed apart and into recesses formed in the sides of
the slot to receive them. When the wire is withdrawn a rivet may be inserted and
fastened up.
The joint at the other end of the compression link is formed and fastened in
the same manner. Another method of attaching the link to the lever A, and platen C,
is shown at fig. 4. Sheet 3. A hole is drilled in the boss of the compression link, but
not in the centre, the pin e, in the hole is shown as having its circumference to coincide
with the centre of the boss, the centre of the pin being on the centre line, between the
centre of the boss and the centre of the compression link. Recesses i, i, are formed in
the sides of the slot in the lever A, in which the pin e, vibrates concentrically about
the centre of the boss of the compression link, but they are made of larger diameter
than the pin. As shown in section of the platen joint at i, i, and by dotted lines i, i, in
the other two sections, their diameter is equal to twice the diameter of the pin. Slots.h, h,
at least equal in width to the diameter of the pin e, and in length equal to the distance
the pin e, projects from the sides of the boss. at the end of the compression link, are
formed in each side of the lever part of the joint, their sides making any angle between
0° and 90° with the plane of the compression link, on the back side and pointing
upward toward the centre of vibration (in relation to the forked lever) of the com-
pression link. Slots h, h, similarly formed at the sides of the slot in the platen part of
the joint, where the compression link is attached to the platen but they incline down-
ward on the front side to the centre of vibration (relatively to the platen) of the
compression link. When disconnected from the bed D, the forked lever A, may be
pulled forward until the pins e, e, are next the slots h, h, h, h, when the compression
link may be withdrawn, the pins é, e, passing through the slots h, h, h, h.
The pressure, in the arrangements for making the joints of the compression link
shown in Sheets 1 & 3, is taken upon the extreme ends of the compression link at j,
and not on the pins as at e, Sheet 2.
The compression link B, may be so made that its length can be increased or
decreased at will by turning at right and left hand screwed nut k, which engages
right and left handed screws l, l, projecting from the centre of the circumference of
the bosses ff, at the ends of the link B.
I
may make the link solid as shown at B, fig. 3, Sheet 3, adjustment being obtained
by inserting packing pieces under, in, or above the book between the bed and platen.
Instead of having only one compression link I may employ two, one at each side of
the forked lever and platten, both of which may be solid, or their length varied by
either of the means described above for varying the length of. the single compression
link.
To guide the platen in its ascent from, and in its descent upon the book, a pin m,
is fastened to each side of the platen C, near the back corners, sliding in a slot in a
bracket or lugn, at each side of the bed near the back corners, in these slots the pins
can move vertically only, to allow for variation in thickness of copy books. Small
lugs o, o, on the ends of the forked lover A, and corresponding lugs p,p on the
joint parts of-the bed prevent the forked lever passing the vertical when pulled
forward, except for a distance sufficient to prevent-its repassing until pushed back to
open the press.
The mode of operating the press is as follows :-
The top of the forked lever A, which is of a form suitable for grasping with the
hand, is pushed back and down, vibrating about the pins or journals a, a, upon the
lugs b, b, of the bed D, drawing with it the upper end of the compression link B,
which in turn raises the platen C, to which it is attached by the joints f, f, the platen
vibrating about the pins m, m, in the slotted lugs n, n. The copy book can then be
put in its place upon the bed D, when the operation just described is reversed,
the forked lever being drawn up until it stands perpendicular to the bed D, at

page_text: which point the compression link is sustaining and transmitting its greatest
pressure. The stops or lugs o, o, on the legs of the forked lever, and p, p, on
the bed prevent its being pulled much past the perpendicular as before mentioned.
When the forked lever is pushed back again, the book can of course be withdrawn.
The press is shown made partly of metal and partly of wood, but I may make it
entirely of metal if desired..
I have described the press as standing with the bed in a horizontal position,
but it may stand with the bed vertical or at any angle.
When the press is used for printing, a case containing type n, Sheet 3, figs. 1 & 2,
or other printing surface, and having a lid 7, with blanket, and fingers s, for keeping
the paper in place, is substituted for the copy book.
.
Springs t, t, keep the paper, when the lid is down, off the printing surface
until pressure is exerted upon the compression link of the press. A platform F,
is attached to the front of the press, level with the bed, by means of hooks w,
for the typo case, to be run out upon from the press, guide rails v, v, guide the
case to its proper position in the press.
When used as a packing press the platen will be made the size and shape to
suit the package it is desired to compress, while upon the bed beneath the platen
will be placed the box or mould of required size and shape to form the other
sides of the package.
The press may also be used for stamping or moulding metal, soap or other
yielding substances, by substituting for the platen a suitable holder for dies, a
die or matrix being placed upon the bed beneath.
The press shown in, Sheet 2, is exactly similar in principle to that already described,
but its parts are adapted so as to allow it to be contained in a smaller space. The
forked lever A, compression link B, platen C, joint G, and bed D, are substantially
the same in their action, but the forked lever is of sheet metal of such a form as
to combine lightness with strength being cut out of a flat sheet and afterwards
bent to shape. Two bearings a, a, are fastened to the lower part of the front
side of the cross piece of the forked lever, which carry, by means of trunnions b,.b,
on its sides, a nut d, which engages a screw c, upon the upper end of the com-
pression link B. These trunnions and bearings allow the compression link to
vibrate relatively to the forked lever A.
The compression link B, has a hole formed in the end opposite the screw c, in .
the direction of its length, to receive the upper end f, of the lower part e, of the
link, which is turned to fit the hole. A spring catch g, latches into a groove h,
turned in the part f. When the forked lever is pulled up and forward, and when
pushed back keeps the parts of the link connected, thereby raising the platen,
the platen is released when the spring catch is pulled up, and the forked lever A,
can then be laid back until the compression link is parallel with the bed. The
joint of the lower part e, of the compression link has been already referred to
and described in page 2 of this specification.
The platen C, and bed D, are shown made entirely of metal, to reduce the
thickness as far as possible while the legs of the forked lever A, vibrate about
pins i, i, screwed into the outside of the lugs j, j, of the bed D, of the press.
Lugs h, k, on the ends of the forked lever, and corresponding lugs 1, 1, on the bed of
the press, prevent the lever A, passing the centre, as in the press shown on Sheet 1.
Instead of having the two slotted lugs which guide the platten, near the back
corners of the sides of the press made as in Sheet 1, they are put near together, one.
0 on each side of the centre line at the back of the press, they being carried on an
extension m, of the bed, their distance apart being sufficient to allow a lug n,
attached to the platen, to slide vertically between them, this lug n, carries a pin o,
which slides in the slots p, as in the press already described.
The distance between the centre of vibration of the compression link relatively
to the forked lever, and its centre of vibration relatively to the platen, is varied
by turning the screwed upper part of the compression link, which engages with
the nut d, by means of the cross handle ».

page_text: Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1st. In a press for Copying; Printing, Packing, Stamping, Moulding and the like,
the combination of the forked or U shaped lever A, compression link B, joint or
guide G, platen C, and bed D, substantially as, and for the purpose described."
2nd. In a press for Copying, Printing, Packing, Stamping, Moulding and the like,
the forked or U shaped lever A, and compression link B, in combination with the
bed D, and platen C, substantially as and for the purpose described.
3rd. In a press for Copying, Printing, Packing, Stamping, Moulding and the like,
the joint or guide G, in combination with the bed D, and platen C, substantially as,
and for the purpose described.