Year: 1885

page_text: I HORACE GRIFFIN of New Haven, in the County of New Haven and State of
Connecticut, United States of America Machinist do hereby declare the nature
of this Invention to be as follows:-
This invention relates to presses for copying letters and the like and the nature
of the invention consists in à cam lever constructed to act upon a second lever that
is connected by a screw sleeve directly to the platen of the press the arrangement
being such that in any position of the operating lever it does not extend beyond
the press and the screw sleeve allows adjustment of the platen and regulation
of the pressure.
The press frame consists of a bed and top plate rigidly connected
with a space between for the platen and letter book.
The platen is hung at its centre from the end of a lever mounted on a standard
fixed on the top plate the connection between the lever and platen being made by
a screw pin jointed to the lever and a screw sleeve that takes on a gudgeon on the
platen so that the connection can be readily shortened and lengthened to suit
the thickness of the book and regulate the pressure.
The other end of the lever is forked and embraces a cam on a short horizontal
shaft mounted in bearings on the top plate and furnished with a hand lever by
the movement of which the platen will be both raised and lowered but if preferred
the platen can be raised by springs.
The cam shaft being near one end of the top plate allows the use of a long
handle by which great power can be applied and the handle when turned down
does not extend beyond the side of the press.

page_text: I, HORACE GRIFFIN of New Haven in the County of New Haven and State of
Connecticut United States of America do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
My improvements relate to presses for copying letters; and the nature of the
Invention consists in a cam lever constructed to act upon a second lever that is
connected directly to the platen of the press the arrangement being such that in
any position of the operating lever it does not extend beyond the press. It consists
further in a screw sleeve connecting the press and lever so as to allow adjustment
of the platen and regulation of the pressure all as set forth more particularly
hereinafter.
Reference is to be had to the accompanying drawings forming part of this
specification; in which similar letters of reference indicate corresponding parts in
both the figures.
Figure 1 is a plan view of the press of the improved construction partly sectional
and figure 2 is a transverse section of the press.
A is the press bed preferably formed of wood, B is a wooden top plate of the
same size as the bed and supported above the same by end plates or standards C C
which are rigidly attached. The space between the two plates A B is but slightly
more than that required for the movement of the platen, so that the press occupies
but little vertical space. D is the platen formed of metal, hung at its centre from
the end of a lever E that is mounted on a standard F fixed on plate B. The con-
nection from the end of the lever to the platen is by a screw-pin G jointed to the
lever and a screw sleeve H that takes on a gudgeon I on the platen, so that the
connection can be readily shortened and lengthened by turning the sleeve H.
Upon the plate B is also a lever handle K fixed on the end of an arbor L that is
supported in bearings M, and between its bearings the arbor is formed as, or carries
a cam N of suitable length. The outer end of lever Ę extends over the cam N
and the lever is forked to pass also beneath the cam so that the platen shall be
both raised and lowered by the movement of the handle, but if preferred the
platen can be raised by springs The connection of lever E being at the centre of
the press its outer end extends to near one end of the top plate where the handle K
is hung. This allows the use of a long handle, by which great power can be
applied, and the handle when turned down does not extend beyond the side of the
press. By turning screw H the platen is raised or lowered to suit the thickness of
the book and the pressure is regulated by allowing more or less space between the
book and the raised platen. When the lever K is turned over the platen is brought
down on the book, the movement being easy even with the greatest pressure. The
ends of platen D are slotted to engage guides S formed on standards C whereby
the platen is kept from turning. The parts upon plate B are covered by a case T
Bcrewed down on the plate.

page_text: Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that
what I claim is ;-
1. In a letter-copying press, the combination of lever handle K, cam N, lever E,
platen D, bed A, and top plate B, substantially as shown and described.
2. The combination and arrangement, substantially as described upon the top
plate B, of the lever E carrying the platen, the operating cam N, and handle K.
3. The screw pin G and screw sleeve H, combined with the press platen and the
lever E substantially as and for the purpose specified.
Dated th: TOLL 1
1000