IMPROVEMENTS IN OPERATING MECHANISM, AND CONSTRUCTION OF SELF INKING ENDORSING PRESSES
Year: 1884

page_text: I, GEORGE KISSAM COOKE of 12 Harp Alley in the City of London Manufacturer
of Endorsing Presses, do hereby declare the nature of said Invention for
IMPROVEMENTS IN OPERATING MECHANISM, AND CONSTRUCTION OF SELF INKING
ENDORSING PRESSES, to be as follows:-
This Invention relates to certain Improvements in mechanism for effecting the
semi-turn of the die plates of self inking endorsing Presses, wherein the die plate
by a semi-turn, or semi revolution, is brought first from contact, with an inking
pad in the frame of the press to the surface to be printed upon, or "vice, versa."
In this class of Endorsing Press, the axis of the die plate extends through
straight up, and down, slots in the side supports of the stationary supporting frame
of the press, which frame also carries the inking pad.
The ends of the axis of the die plate, after passing through the up, and down
slots, in the supporting frame, are received, and turn in holes in the lower ends of
the yoke arms of the spring handle. This class of Stamp is well known as being of
the "Vitesse" or Acme" type.
€
This invention consists in operating the turning of the die plate, by means of a
stud or studs located on one or both inner sides of the supporting frame or by a
bar passing across from one inner side to the other, and secured to both sides of
same, and furnishing the die plate, with an ear, or ears, located on one, or both
sides, or in the middle of said die plate-said ear, or ears, being provided with a
slot shaped as here shewn
this slot, engages with the bar or stud, attached
to the stationary supporting frame, which passes through said guide slot, when
operating the press by applying pressure to the spring handle of the yoke, and
from the yoke arms to the axle of the die plate, the axle is forced down the slots,
in the sides of the supporting frame, this causes the die plate to make first a
downward straight movement, then upon the side of the guide slot, coming in
contact with the stud or bar, causes the die plate, to make a complete semi-turn,
and then a further straight downward movement. This first downward movement,
secures the semi-turn of the die plate, without its coming in contact with the
[Price Ra

page_text: Inking Pad, and after the semi-turn is secured, the second straight downward
move of the die plate not only secures a parallel position of the die plate, with the
surface to be printed on, but also on the die plates return to the Inking Pad,
secures the semi-upward turn, without the die plate coming in contact, with the
surface printed on.
The form of slot, as shewn and described has advantages over those now in use,
inasmuch, as it is more positive in its action, requires but one stud, in connection
with a straight up and down slot, in the supporting frame, and allows of an
extra strengthening bar, attaching together the sides of the supporting frame, said
bar acting in place of the stud or studs in the side of the supporting frame.
I GEORGE KISSAM COOKE, of 12 Harp Alley, in the City of London,
Manufacturer of Endorsing Presses do hereby declare the nature of my said
invention for "IMPROVEMENTS IN OPERATING MECHANISM AND CONSTRUCTION OF
SELF INKING ENDORSING PRESSES" 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 certain improvements in mechanism for effecting the
semi-turn of the die plates of self-inking endorsing presses wherein the die plate
by a semi-turn or semi-revolution is brought first from contact with an inking pad
in the frame of the press to the surface to be printed upon or vice versa.
In this class of endorsing press the axis of the die plate extends through
straight up and down slots in the side supports of the stationary supporting frame
of the press which frame also carries the inking pad.
In the following description reference will be had to the accompanying sheet of
drawings wherein Fig 1 is a perspective view of the apparatus.
Fig 2 a transverse section with die plate on the inking pad.
ܕ܂
Fig 3 transverse section showing the die plate delivering an impression
Fig 4 a perspective view of the die plate having two ears one of which contains
a perfect slot and the other a part of same.
Fig 4 shows a modification in which the slot is carried through the end of
ear or ears in order to allow of the change of die plates.
-
This invention consists in operating the turning of the die plate c by means of
a slot k provided in the ear or ears i, g of the die plate as shown in the drawing
engaging with a stud or studs located on one or both inner sides of the supporting
frame a or with a bar h passing across from one inner side to the other and
secured to both sides of said frame a. When operating the press, by applying
pressure to the spring handle e of the yoke arms f which pressure being com-
municated to the axle d of the die plate, c the axle is forced down the slots b in
the sides of the supporting frame a and causes the die plate c to make first a
downward straight movement then upon the side of the guide slot coming in
contact with the stud or bar h it causes the die plate c to make a complete semi-
turn and then a further straight downward movement.

page_text: The first downward movement secures the semi-turn of the die plate without its
coming in contact with the inking pad c¹ and after the semi-turn is secured the
second straight downward movement of the die plate not only secures a parallel
position of the die plate with the surface to be printed on, but, also on its return
to the inking pad c¹ it secures the semi-upward turn without the die plate coming
in contact with the surface printed on.
The form of slot k as shown and described has advantages over those now in use
inasmuch as it is more positive in its action and also allows of an extra
strengthening bar h for attaching the sides of the supporting frame a together and
at same time acting with the slots k in the ears i, g of the die plate c to effect the
semi-turn of same.
Having now particularly described and ascertained the nature and particulars
of my said invention, and in what manner the same is to be performed I declare
that what I claim is:-
In hand stamps the slot k in an ear or cars of the die plate c acting together
with the bar or studs h to effect the semi-turn or revolution of said die plate and
bringing same from the inking pad to the surface to be printed upon constructed
and operating in the manner as herein set forth and shown by the drawings.