Improvements in Ink Fountains for Printing Presses.
Year: 1898

page_text: Date of Application, 15th Aug., 1893-Accepted, 18th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Ink Fountains for Printing Presses.
I, REGINALD HADDAN, of The Firm of Herbert Haddan & Co., of 18, Buckingham
Street, Strand, London, Patent Agent, do hereby declare the nature of this inven-
tion, a communication to me from abroad by Samuel Lewis Merchant, of 63,
Washington Street, Gloucester, Essex County, Massachusetts, in the United
States of America, Box Manufacturer, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
My invention relates to ink fountains for printing presses, and it consists in
certain novel features of construction, combination, and arrangement of parts
which will be readily understood by reference to the description of the drawings
and to the claims to be hereinafter given, and in which my invention is particularly
pointed out.
Fig. 1 of the drawings is an elevation of so much of a printing press having
my improved ink fountain applied as is necessary to the proper understanding of
my invention. Fig. 2 is a front elevation of my improved fountain. Fig. 3
is an end elevation of the same, the ratchet operating lever being cut away.
Fig. 4 is a vertical transverse section of the same on line a on Fig. 2, and
Fig. 5 is an end elevation of the fountain, drawn to an enlarged scale, with a
portion of the adjusting mechanism shown in section.
In the drawings, A is the frame of the machine, B is the platen, C is the
inking roller carrying frame, D is the ink distributing table, a a are the inking
rollers and E is one of the platen draw bars all constructed and operated in a well
known manner.
My improved ink fountain is composed of the plate b ribbed upon its back side
and provided with ears cc by which it is pivoted to the ears dd of the bar d,
the end pieces e e pivoted to said plate at its upper edge, one at each end and
the roll mounted in bearings in said end pieces as shown. The bar d is pro-
vided with a central hub upon the side opposite to the ears by which it
is secured to the hub projecting from the stand which supports the ink
distributing table. The wider rib 6 of the plate has secured to or formed
upon its lower edge an ear or hub, 62 to which is pivoted the bolt which projects
through the ear on the bar d and is provided with the adjusting nut i by
means of which bolt and nut the fountain may be adjusted to the desired position
to insure contact between the roll f and the upper inking roll a when said
roll is at the extreme of its upward movement. The end pieces e e are movable
about their pivots for the purpose of adjusting the roll f to a greater or less
distance from the front edge of the shallow rib j formed on the lower edge of
the front face of the plate b, by means of the screw and nuts and the springs m
said screws being secured to said end pieces one to each and pass through slots
in the ears n projecting laterally from the ears c c of the plate b as shown. By
removing the nuts the end pieces carrying the roll if may be moved upward
into the position shown in dotted lines in Fig. 4 to facilitate the cleaning of the

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parts. The roll f has an intermittent rotary motion imparted thereto by the
ratchet wheel o secured to the shaft of said roll the pawl o, the lever p, carrying
said pawl and the rod q connecting the free or movable end of said lever P
the inking roller carrying frame Call as shown in Fig. 1 said roller carrying
frame being vibrated in any well known manner.
The operation of my invention is as follows:-The parts being in the positions
shown in the drawings, the ink is placed between the roll f and the inclined front
face of the plate b, and as the machine is operated and the inking rollers descend
to ink the form the lever 7 is raised and the pawl o¹ is carried over one or more
teeth in the rachet wheel and when the said rollers are moved upward again
said pawl engages with the ratchet wheel and imparts a partial rotation to the
roll in the direction indicated in Figs: 4 and 5 by the arrow shown thereon.
The roll when so rotated carries upon its surface a certain thin coating of ink,
the thickness of which is regulated by the adjustment of said roll to or from
the rib which serves as a doctor plate to gage the thickness of the film of ink
upon said roll. The upper inking roller a when it reaches. the extreme of its
upward movement, comes in contact with the roll of and receives therefrom a
portion of the ink upon its surface and deposits it upon the ink distributing
table D.
The advantages of this fountain are its cheapness of construction, ready adjust-
ment, and its adaptability to be easily cleaned and kept in order.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is:
1. An ink fountain for printing presses, composed of an inclined plate, two
pivoted and movable end pieces, and an intermittently revoluble roll having its
bearings in said movable end pieces, and arranged to be revolved with its periphery
in near proximity to the lower portion of the front face of the said inclined
plate, and forming one side of the ink receptacle.
2. The combination of the plate 6 the movable end pieces e e, the roll f
mounted in bearings in said end pieces, the adjusting screws the nuts and
the springs m all constructed, arranged, and operating substantially as and for
the purposes described.
3. The combination of the inclined and pivoted plate b the end pieces e e the
roll f, the screw bolt pivoted to the rear of said plate, the nut i and the
bar d provided with the ears d¹d and h¹ all constructed, arranged, and adapted
to operate substantially as described.
4. The combination of the pivoted inclined plate h the pivoted and movable end
pieces ee the roll f mounted on said end pieces, the screws & nuts 7 and springs m
for adjusting the roll f relative to the plate b and the screw h and nut i for
adjusting the roll f and plate b relative to the inking rollers a substantially as
described.
1711 1
J
1000