Apparatus for Economically and Efficiently Applying Bronze Powder and the like to Printed or similar Surfaces.
Year: 1899

page_text: Date of Application, 5th Jan,, 1899
Complete Specification Left, 5th Oct., 1899 -Accepted, 18th Nov., 1899
Apparatus for Economically and Efficiently Applying Bronze Powder
and the like to Printed or similar Surfaces.
We, VALENTIN BAUER, Lithographer, Hoechst-on-Main, Germany, and JOHANN
ADAM LIEB, of 20, Musikantenweg, Frankfurt-on-Main, Germany, Merchant,
do hereby declare the nature of this invention to be as follows:-
-
The object of this invention is to provide a new or improved apparatus by the
aid of which printed or similar surfaces can be treated with bronze powder and
like substances and subsequently dusted, in a more efficient manner than has
hitherto been the case.
By using the new apparatus a considerable economy in bronze powder or other
substance employed is assured, and the dust of said materials is effectively pre-
vented from filling the air and from being inhaled by, and endangering the
health of, the operator and other persons employed in the same room.
The apparatus is constructed as follows: A box-shaped receptacle, closed by
a sliding lid or in other manner, and provided with a series of slots disposed
longitudinally along the centre line of the bottom plate, is made to enclose a
second box. The latter is made narrower in order to admit of its being moved
from side to side within the outer box or receptacle, the said displacement being
effected by means of a push button protruding through the side of the outer box,
while, upon the pressure on the button being discontinued, a suitably arranged
curved leaf spring or other analogous device forms the box back into its normal
position within the outer receptacle. A conveniently arranged curved leaf
spring, secured to the cover of the inner box and engaging against the sliding
lid of the outer box, serves to press the cover down in order to keep the box
tightly closed and press it firmly against the bottom plate of the outer receptacle.
The bottom plate of the inner box is likewise provided with a series of slots,
disposed longitudinally through its centre line, so that, when the said inner box
after being supplied with bronze powder or the like, is moved forwards by
means of the aforesaid push button, both series of slots will coincide and allow
a certain quantity of powder to fall through and onto the surface to be treated.
The herein before described device is suitably secured to a base plate having a
longitudinal aperture corresponding with the series of slots in the bottom plate
of the outer receptacle; its lower surface is padded and covered with soft silk-
plush, fur or other suitable material.
When the necessary quantity of powder has been discharged from the inner
box in the manner described, the apparatus is moved gently over the surface
under treatment, the plush or fur cover serving to efficiently distribute the
powder and to take up any surplus, thus preventing waste of material and
vitiation of the atmosphere of the work room.
Dated this 5th day of January 1899.

page_text: Cross section, anCE
Fig. 4 a top view of the apparatus, the lids or covers of both receptacles being
removed, as well as the frame used for holding the fur or velvet covering of the
base plate.
The apparatus is constructed as follows:-A box-shaped receptacle A, closed
by sliding lid Q or in other convenient manner, and provided with a longitudinal
slot, or series of slots I disposed along the centre line of the bottom plate, is
adapted to enclose a second box B. The latter is made narrower in order to
admit of its being moved within the outer box A from side to side, the said
displacement being effected by means of push button (protruding through
box A and provided with stop-collar H. Upon the pressure on button (being
discontinued, a suitable curved leaf spring & or analogous device arranged and
conveniently secured between the opposite sides of boxes A & B will return the
latter to its normal position in the said outer receptacle A. A second curved
leaf spring P, secured to the lid of box B and engaging against the sliding lid Q
of outer box A, serves to press down the cover of the inner box in order to keep
the said box B tightly closed and press is firmly against the bottom
plate of box A. The bottom plate of box B is likewise provided with
a series of slots E, disposed longitudinally through its centre line, so that when
the inner box, after being supplied with bronze powder or the like, is moved
forwards by means of the aforesaid push-button C, the described slots D and E
will coincide and allow a certain quantity of powder to fall through and onto the
surface to be treated.
The above device essentially consisting of boxes A and B and their attach-
ments, is secured to a base plate by means of links and bolts M and N or in
other suitable manner.
The said base plate has a longitudinal slot corresponding to slot or slots D
of box A, and its lower surface is covered with a soft padding O and lining L
made of silk-plush or velvet, fur or other suitable material. The lining I. is
held in position by means of clip rails K enclosing the central slot of the base

page_text: plate, and by a series of prongs or points symmetrically arranged near the edge
of the upper surface of the base plate. The outer edges of the said lining L is
passed over said prongs or points and there secured by means of a suitable
sectioned frame S which is provided with holes for the reception of the prongs
or points, as shown in Figs. 2 and 3.
When the required quantity of powder has been discharged from the inner
box in the herein before described manner, the apparatus is moved gently over
the surface under treatment the plush or fur lining L serving to efficiently dis-
tribute the powder and to take up any surplus, thus preventing waste of material
and vitiation of the atmosphere of the workroom. Subsequent dusting of the
surfaces so treated is rendered unnecessary and smudging or otherwise damaging
the work is avoided.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
--
New or improved apparatus for economically and efficiently applying bronze
powder or the like to printed or similar surfaces, consisting of a box B displace-
able within box or receptacle A, in combination with a fur or plush lined base
plate,, said three portions having longitudinal slots capable of being made to
coincide by means of a push button C, the whole arranged and contrived as and
for the purpose hereinbefore described and illustrated in the accompanying draw-
ings.