An Improved Printing Press for the Production of Block Impressions.
Year: 1893

page_text: Date of Application, 13th Sept., 1893-Accepted, 28th Oct., 1893
COMPLETE SPECIFICATION.
An Improved Printing Press for the Production of Block
Impressions.
I, CONSTANTIN SHAPIRO, Photographer to the Court of St. Petersburgh,
Russia of Nevski Prospekt No. 32, Petersburgh Russia, 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 has for its object a press for producing block impressions of
photographs, firm designs, trade marks and the like, combined with an arrangement
by means of which the colour may be easily and equally distributed over the
block.
In the accompanying sheet of illustrative drawings
Figure 1 is a side elevation of a printing press for the production of block
impressions constructed according to this invention.
Figure 2 represents a side elevation of a modified arrangement.
Figure 3 is a transverse sectional elevation and Figure 4 is a sectional plan of
the same.
This press,
which may also serve as a paperweight, is composed of a bed plate a
provided with two double bearings b and c. The body s of the press may turn on
a pin i fixed in the bearing c whilst another pin passing through the bearing b
keeps the body s in its working position.
Inside the head of the press are placed the cam shaped end of a lever e, the
head of a stamp f, movable upwards and downwards, and the spiral spring g.
The shaft of the stamp fis enlarged on its lower end in shape of a socket, into
which socket is introduced a button t of the block holder which button is provided
with an annular groove. This button and with it the block holder may be rotated
around the longitudinal axis of the stamp shaft and can be fixed in any desired
position by means of screws kk.
The bodys of the press is adapted to the bed plate a in such manner that, when
the pin is drawn out, the body of the press turns on the pin i whereby the stampf
is lifted away from the bed-plate a in order to allow of the fixing of the block
holder with the block u on the stamp. In this position of the body s of the
press, the block may be covered with colour, also by hand. On the bed plate a is
adapted a plate of india rubber which may be easily changed and on which is
placed the piece which has to be impressed.
An arrangement is provided (Figures 2, 3, 4) in order to distribute the colour
over the block, which arrangement may be fixed on the press or taken off it as
desired. This arrangement is composed mainly of a distributing plate m on which
is placed the colour, and which, in order to give off this colour as uniformly as
possible to a roller n, is adapted capable of being rotated and fixed, and of a
roller n adapted under the action of springs in link-levers o, which roller u may be
displaced up and down along the guide rails y by means of a lever r.
g
When the roller n passes over the plate m which it touches it takes up colour
which is given off to the block u when the roller n is in its lowest position.
The guide rails are so shaped that the roller n can only touch the plate m or
the block after having passed their edges.
When the block is covered with colour the roller n may be brought to rest upon
the upper part of the guide rails g.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A press for producing block impressions consisting of a block holder capable

page_text: of being fixed on the lower end of a stamp shaft and of being turned round the
longitudinal axis of this shaft, and of the body s of the press adapted capable of
being turned to the bed-plate of the latter substantially as desired.
2. In the press claimed by Claim 1: an arrangement for depositing the colour
upon the block consisting of the guide rails 99, of the roller n adjustable under
the action of springs in link-levers o and of the plate m adapted capable of being
turned and fixed in order to distribute the colour uniformly to the roller n
substantially as described.
Dated this 13th day of September 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents..