An Improvement in Printing or Gilding Machines.
Year: 1893

page_text: Date of Application, 9th Aug., 1893
Complete Specification Left, 9th May, 1894-Accepted, 9th June, 1894
PROVISIONAL SPECIFICATION.
An Improvement in Printing or Gilding Machines.
I, ERNST HEINRICH SCHMIDT Manager of Works, of 59 Bartholomew Road,
London, N.W. do hereby declare the nature of this invention to be as follows:-
The object of this invention is to automatically supply bronze powder, or other
suitable powder, to heated type for printing or gilding on suitable articles, and
after each imprint automatically to clean or brush out the said type or die.
In carrying out my improvement in connection with an ordinary printing
machine I substitute for the inking rollers soft brushes or rollers covered with
plush or other suitable material, which during one part of their travel pass over or
under a receptacle containing bronze powder, and take up a supply of bronze
powder which, during another part of their travel, they brush or press on the
heated type or die which will retain a sufficient quantity of it to give an imprint
upon any suitable material brought in proper contact with it.
In addition to the said bronzing brushes or rollers I employ another hard
brush or brushes or suitable rollers which precede the bronzing rollers in their
forward motion and by bearing on the type or die clean it out, but which in
their backward motion are brought out of contact with the type or die by
means of an excentric or other suitable contrivance so as not to disturb the
powder which the bronzing rollers or brushes have deposited on the type or
die & continue to so deposit during their backward motion at the end of which
motion the cleaning brushes or rollers are again adjusted so as to bear on the
type or die on their next forward motion. A similar arrangement of the
cleaning brushes or rollers and bronzing brushes or rollers can be used in
connection with machines in which the type or die moves in a vertical or
nearly vertical line and when the type or die is raised and lowered by means
of an oscillating spindle I employ a lever on the same spindle or on a spindle
working in connection with it, which at one end carries a bar to which are
attached the cleaning brush and bronzing rollers in such a manner that, during
the upward movement of the type or die, they move forward to clean and
bronze the type or die, and during the downward movement of the type or die
they move backwards to take up a new supply of powder, the cleaning brush
being in the backward movement brought out of contact with the type or die
by means of an excentric or other suitable contrivance and then again adjusted
in a position to clean the type or die in the next forward movement.
In a machine with rotating type I place a brush or roller covered with plush
or other suitable material in such a position as to bear against the face of the
type; the said brush or roller travels in a receptacle containing bronze powder
and transfers a quantity of it to the heated type which, after each imprint, is
cleaned by bearing against a stiff brush, circular or otherwise, before taking
another supply of powder from the bronzing brush or roller.
In case of a machine with horizontally moving type or die the backward and
forward motion of the cleaning brush and bronzing rollers, as described in
connection with an ordinary printing machine, can be dispensed with, the
cleaning brush or brushes being raised or lowered, to clean or escape the face
of the type, by any suitable means.
London dated this 9th day of August 1893.

page_text: COMPLETE SPECIFICATION.
An Improvement in Printing or Gilding Machines.
I, ERNST HEINRICH SCHMIDT, of Malden Works, Malden Crescent, London,
Manager of Pencil Works, 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 :-
The object of this invention is to automatically supply bronze or other powder to
heated type for printing or gilding on suitable material and after each imprint to
automatically clean or brush out the said type.
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawings, in which :—
Figure 1 is a side elevation of an ordinary platen printing press adapted
according to my invention for printing or gilding with brouze or other powder.
Figure 2 is a similar view to Figure 1, but with the mechanism in another
position:
Figures 3 and 4 are respectively a vertical section and a plan drawn to an
enlarged scale of the mechanism for applying the powder to the type and for
cleaning the same:
Figure 5 is a front elevation of a machine constructed according to my invention
for printing lead-pencils and similar articles; and,
Figure 6 is a vertical section on the line 6-6 Figure 5:
Figure 7 is a side elevation of a modified form of machine for printing lead
pencils and like articles; and,
Figure 8 is a similar view to Figure 7 but with the parts in another position.
Similar letters in all the figures represent similar or corresponding parts.
Referring to Figures 1 and 2, a is a box which I substitute for the usual inking
mechanism, the said box containing the bronze or other powder for printing or
gilding and rollers b, connected by an endless web or band 6 and adapted when
the box is moved over the type or die c by the usual lever d to deposit a portion of
the powder thereon by meaus of the roller b, which rolls upon the type.
e is a brush contained in the box a and adapted to be raised and lowered in the
same so that during the downward movement of the said box the brush will be in
its lowered position and brush out the type while in the upward movement the
brush will be in its raised position and be clear of the type. These movements of
the brush are advantageously effected by cam-levers (pivotted on the sides of
the box a) impinging against pins g, g on the ends of the brush projecting through
slots h, h in the said box and by springs i, i arranged between the brush and the
top of the box, the brush being lowered when the box a reaches its highest position
by the levers, striking against pins j, j as shewn clearly in Figure 1 and raised
when the said box reaches its lowest position by the said levers striking against
pins k, k as shewn in Figure 2.
_ indicates a gas-pipe arranged at the back of the type e for heating the same;
or they may be heated in any other suitable manner.
By the arrangement described it will be seen that during the downward movement
of the lever d the brush e comes into contact with the heated type c and cleans it
out after which the roller b rolls upon and presses the bronze or other powder
against the heated type. The brush e is then raised in the box a by the levers f,j
striking against the pins k, k as herein before described so that when the lever d
travels upwards, the said brush remains clear of the type until the levers f, f strike
against the pins j, j when it is again lowered as hereinbefore described. The paper
or other material to be printed is fed on to, and removed from, the bed m and
pressed against the heated type c in the usual way.
Instead of the box a a powder reservoir can be arranged over or under the said
rollers b, b¹ to give a supply of powder at each stroke.

page_text: One roller only or more rollers than those shewn can be used; or the band con-
necting the rollers can be dispensed with.
Referring to Figures 5 and 6 the type-holder c¹ which is formed by a vertical bar
is adapted to be moved in order to present the type to the bronze or other powder
which is contained in a stationary box a and afterwards to the pencil or other article
to stamp the same and for this purpose it is connected to links n, n, n, n pivotted
to standards o, o and moved to-and-fro by a rotating crank p on a shaft p' through
the medium of a slotted lever q, the said lever engaging a pin p' in the crank and a
pin connecting two of the links. The brush e which is hinged to one of the
standards o and provided with a spring i below, is adapted to be depressed out of
the way of the type c as the latter is moved forward to stamp an article by means
of the pin p of the crank p impinging against a projection el on the brush e, the said
erank then moving through the lower part of its path while when the type is being
moved backward after stamping an article it comes into contact with the brush, the
latter not being affected by the pin p' which is moving in the upper part of its
path.
In order to rotate the rollers b and b' in this arrangement to move the band b² to
present fresh powder to the type c I advantageously provide on the roller ba
ratchet-wheel which is partially rotated at each rearward movement of the lever q
by a pawls as shewn clearly in Figure 6.
r
By the construction just described assuming the parts to be in the position shewn
in Figure 6 when the shaft p' is rotated in the direction of the arrow the pin p' of
the crank p comes out of contact with the projection e' of the brush e (which is then
brought into its horizontal position by means of the spring i) whilst it forces the
lever to oscillate from right to left carrying the type-holder c¹ with it, the said
type-holder travelling in a circular path dependent on the links n, n and coming into
contact with the brush e. When it arrives at the extreme left hand position, as
shewn by the dotted lines in Figure 6, the type-holder c'.presses the type upon the
roller band takes up a supply of powder for the next imprint. During the same
movement the pawl's has given a turn to the roller to bring a fresh supply of
powder ready for contact with the heated type c. In the movement from left to
right the pin p² on the crank p presses against the projection e' of the brush e and
depresses it sufficiently to bring the said brush out of the path of the powdered type
as hereinbefore described which then moves down and stamps the article placed on
the bed m.
One roller b only can be used without a connecting band and the turning move-
ment of the said roller can be effected by other suitable means than that shewn.
The brush e can be fixed in a circular or other convenient form on the shaft p¹
elongated for the purpose, in which case the said brush would be partly cut away
to allow the type in its movement from left to right to pass freely without being
touched, whilst the lever g would be made wider and provided with an additional
slot nearly at a right angle to the existing slot to clear the elongated shaft p'.
Or the powder box a and rollers b, b¹ can change places with the brush e, in which
case the roller b may be left in contact with the type both in its left hand and right
hand travel, whilst the brush e would either have a sliding, oscillating or rotating
movement given to it by any suitable means. The spring motion of the brush e
may be modified in any suitable way and one of the standards o with its links n, n
may be dispensed with.
In Figures 7 and 8 the type-bar el is connected to links n, n as in Figures 5 and 6,
but instead of the powder box a with roller band brush e therein being stationary
they are connected to an extension t of one of the links so that the said roller and
brush will be moved into contact with the type c when one of the links is oscillated
by a lever (not shewn) the type-bar in this case only rising and falling.
By this construction assuming the parts to be in the position shewn in Figure 7,
if the links, n, n be depressed the type-holder is carried down with them; at the
same time the extension t swings backwards and causes the brush e to clean out the
heated type, after which the latter comes into contact with the roller b which

page_text: presses a supply of powder against the type and then recedes from the type to allow
the same to descend upon the article placed on the bed m and fix the powder thereon.
On the links n, n being raised, the roller b again presses powder against the type and
the brush e following cleans out the same.
e
The roller 6 can be arranged to travel over a bed charged with powder or under
a powder reservoir to receive a fresh supply at each stroke and it will be readily
seen that either the roller b or the brush by means of suitable mechanism can be
brought out of contact with the type at the proper moment and also that the said
brush and roller can change places. The form of the brush e can be modified
and the roller receive a slight turning motion by means of a pawl or other
contrivance at each stroke.
In a machine with rotating heated type I place a suitable brush or roller in a
position to bear against the face of the type. The said brush or roller travels in a
receptacle containing bronze or other powder and transfers a quantity of it to the
type which, after each imprint, is cleaned by bearing against a brush before taking
up another supply of powder from the bronzing brush or roller.
In case of a lithographic printing machine, bronzing rollers and a cleaning brush
or brushes are substituted for the ordinary inking rollers and the said brush or
brushes are allowed to bear against and brush out the heated type after each imprint,
but they are brought out of contact with the type by suitable cams or levers to
allow the freshly powdered type to pass clear. Or the cleaning brush or brushes
can be arranged to brush the heated type after it has given an imprint and passed the
bronzing rollers in its backward movement but before it takes up another supply of
powder in its forward movement. In this case the brush or brushes need not be
lifted out of the path of the face of the type.
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. In a printing or gilding machine, the combination with heated type or its
equivalent of means for automatically supplying it with powder and for brushing
the same after each imprint, substantially as described.
2. The combination with an ordinary platen printing-press of heated type and
automatic powdering and cleaning mechanism, substantially as hereinbefore described
and illustrated in Figures 1 and 2 of the accompanying drawings.
3. In a gilding or printing machine the combination of a type-bar c', the links n, n,
the slotted lever and the crank p substantially as hereinbefore described and
illustrated in Figures 5 and 6 of the accompanying drawings and operating as set
forth.
4. The combination with the mechanism described in the preceding claiming clause
of a brush e and rollers b, b' substantially as hereinbefore described and illustrated
in Figures 5 and 6 of the accompanying drawings.
5. In a gilding or printing machine moving the type-holder in a circular path,
substantially as hereinbefore described and illustrated in Figures 5 and 6 of the
accompanying drawings and for the purpose set forth.
6. In a gilding or printing machine the combination of pivotted links n, n,
extension t, brush e, roller b, reservoir a and type-holder c substantially as herein-
before described and illustrated in Figures 7 and 8 of the accompanying drawings.
7. The improvements in printing or gilding machines hereinbefore described and
illustrated in the accompanying drawings.
Dated the 9th day of May 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.