Improvements in Copying and other like Presses.
Year: 1891

page_text: Date of Application, 30th Ju y, 1891
Complete Specification Left, 30th Apr., 1892-Accept:d, 2nd July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Copying and other like Presses.
I, FRANK BARKLAM of 2 Hopkins Street, Burnt Tree, Tipton, Staffordshire,
Iron Founder do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to copying and other like presses, such for example as
office copying presses, domestic linen presses and the like, and consists essentially
in the employment of a lever in conjunction with an excentric or excentrics, for
imparting the desired pressure to the movable pressure plate of the press.
My new or improved press, consists essentially of a bed plate, and a movable
pressure plate, the latter carrying upright brackets with excentric bearing holes,
made within them, and in which holes, excentrics, made fast to a horizontal and
transverse spindle, with a lever attached, work, while the ends of the said spindle,
work within fixed bearings, directed upwardly from the opposite sides of the bed
plate.
In carrying out my invention in connection with a letter-copying press, I take
a fixed bed plate; having directed from the middles of its two opposite sides,
upright brackets, which form the fixed bearings for the ends of a horizontal
spindle or shaft, having made fast upon it, excentrics which work within bearings
or straps, of upright brackets, carried by a movable pressure plate of the inside
breadth of the top of the bed, aud with trunnion or stud ends, taking and working
within vertical guide slots, made through the sides of the bed brackets as
aforesaid.
The spindle or shaft carrying the excentrics, has a lever, directed outwardly
from the middle of it, which when pressed home or down for the opening and
closing of the press comes upon stop rests, directed upwardly from the top side of
the pressure plate.
The trunnions or studs working within the guide slots, are made elongated, so
that the pressure plate, by which they are carried, is made always to preserve a
horizontal plane, on the rising and falling of the said pressure plate, on the lever
being raised, lowered or turned from one position to another.
To open the press, turn the lever from right to left, when the spindle or shaft,
to which it is connected, being constant, rotates within its bearings, and the throw
of the cams, uppermost, hence the lifting of the pressure plate.
The turning of the lever in a reverse direction, or from left to right, until the
same comes against the stop, turns the spindle or shaft, and brings the throw of the
excentric undermost, hence the diminution of the distance between the top side of
the bed, and the underside of the pressure plate.
Instead of employing two excentrics, mounted as described, a single one may be
substituted for them, and if necessary, the spindle may be dispensed with, and the
lever connected directly to the said excentric.
To preserve the parallelism of the pressure plate, 2 studs on each side taking
into like slots, may be employed, instead of single or elongated studs.
The application of my invention to clothes presses, differs in no essential respect
from its application to a letter press as herein described.
Dated this 29th day of July 1891.
FRANK BARKLAM,
By Henry Skerrett,
Agent for Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Copying and other like Presses.
I, FRANK BARKLAM of 19, Saint Johus Road, Kates Hill, Dudley, Worcester-
shire, Iron Founder 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 :-
This invention relates to copying and other like presses such for example as
office copying presses, domestic linen presses, cigarette presses, and the like, and
consists essentially in the employment of a lever in conjunction with an excentric,
or excentrics, for imparting the desired pressure to the movable pressure plate of
the press.
My new or improved press consists essentially of a bed plate and movable
pressure plate (marked in drawings attached hereto, A and B respectively) the
latter carrying upright brackets (C) with excentric bearing holes made within
them and in which holes excentrics (D) made fast to a horizontal and transverse
spindle (E) with a lever attached, work, while the ends of the said spindle work
within fixed bearings (F) directed upwardly from the opposite sides of the bed
plate.
In carrying out my invention in connection with a letter copying press, I take a
fixed bed plate having directed from the middles of its two opposite sides upright
brackets, which form the fixed bearings for the ends of a horizontal spindle or
shaft, having made fast upon its excentrics, which work within bearings or straps
of upright brackets, carried by a movable pressure plate, of the inside breadth of
the top of the bed and with trunnion or stud ends (G) taking and working within
vertical guide slots, made through the sides of the bed brackets as aforesaid.
The spindle or shaft carrying the excentrics has a lever directed outwardly from
the middle of it, which when pressed home or down for the opening and closing
of the press comes upon stop rests (H), directed upwardly from the top side of the
pressure plate.
The trunnions or studs working within the guide slots are made elongated so
that the pressure plate by which they are carried is made always to preserve a
horizontal, or nearly horizontal, plane on the rising and falling of the said pressure
plate, on the lever being raised lowered or turned from one position to another.
To open the press turn the lever from right to left, when the spindle or shaft
to which it is connected, being constant, rotates within its bearings, and the throw
of excentrics, uppermost, hence the lifting of the pressure plate.
The turning of the lever in the opposite direction, or from left to right, until the
same comes against the stop, turns the spindle or shaft and brings the throw of the
excentric undermost, hence the diminution of the distance between the top side of
the bed plate, and the underside of the pressure plate.
Instead of using two excentrics mounted as described, a single one may be
substituted for them and if necessary the spindle may be dispensed with and the
lever connected to the said excentric.
To preserve the parallelism of the pressure plate two studs on each side taking
into like slots may be employed instead of single or elongated studs.
The application of my invention to clothes, cigarette, and other presses, differs
in no essential respect from its application to a letter press as herein described.
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.
The employment of a lever in combination with a shaft & excentrics (either in
one piece, or separately) for the purpose of putting strain on the pressure plate of
press

page_text: The brackets, slots, studs, as used in conjunction with the foregoing.
The press as a whole, having regard to its design, & the means employed for
producing the necessary pressure.
FRANK BARKLAM.