Improvements in Machines for Applying Bronze or other Powder to Paper or other Materials after the same have been Printed in Ink or Size.
Year: 1888

page_text: Improvements in Machines for Applying Bronze or other Powder
to Paper or other Materials after the same have been Printed
in Ink or Size.
I RUDOLPH FRANK EMMERICH of 191 Worth Street, New York City, in the United
States of America, Machinist, do hereby declare the nature of my said invention 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 what are known as bronzing machines, and its objects are
to effect improvements in the feed motion, to economise the consumption of powder
and prevent waste; and also to distribute the bronze over the sized or printed
surfaces in an even and regular manner and without scoring or otherwise damaging
the bronzed surfaces.
In this Specification the word bronze is intended to include other powders and
materials of a like or analogous nature.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. 1 is an end elevation of a machine for applying bronze powder, and Fig. 2 is
a section of the same.
a is the large cylinder mounted on an axle b. C is the box containing the bronzing
powder. d is the distributing roller, which receives the powder and distributes it
upon the material carried round the main cylinder. ee are rotary brushes, the axes
of which are radial to the cylinder. fg hi are four rollers mounted so as to brush
the main cylinder. kk are sheet iron or other plates or partitions to hold the super-
fluous bronze.
m is a cam keyed on the axle 6 n is a vibrating lever pivotted at n', and having a
roller n² always in contact with the cam m. o is a double ended lever, pivotted at o²,
and having a segmental rack o³. p is a connecting rod or link, connecting the levers n
and o by means of fly nuts p¹ p², the stems of which pass through the slots formed
inn and o respectively. The toothed rack o³ gears into a pinion loose on the axle of
the roller d. This loose pinion carries the pawl 7 which drives the ratchet wheels,
(fast on the same axle) in the direction of the arrow. The spring o³ is attached to the

page_text: the cam.
lever o as shown, the other end of the spring o' is attached to a stationary stud on the
frame. The spring o* and connecting rod p keep the lever a down, in contact with
By shifting the connecting rod p in the slots of the levers and o, the
throw of the lever o can ho increased or diminished, as desired; and, consequently,
the amount of intermittent rotation of the roller d is, in like manner, varied and
regulatod.
After the revolving pads ee have thoroughly rubbed the bronzing in an uniform
manner, the brushes and g remove all superfluous powder and deposit the same in
the trays kk.
A is a friction roller, which is turned in the direction of the arrow by the main
cylinder a. is a brush which removes bronze powder from the roller h. i is a
cylinder cleaning roller, to remove any superfluons dust remaining thereon.
The rollers and i are composed of discs of fibrous material slipped upon the
shaft, with a smaller disc of pasteboard placed between each pair of larger discs,
alternately. The free edges of the material act as a brush.
The several rollers and discs are of the same length as the cylinder a and are
caused to rotate in the directions shown by the arrows.
t is a bevel wheel which drives the bovel pinion and shaft, and also the pinion w,
whoroby the series of revolving pads e e aro driven, as shewn in Fig. 3.
Having now particularly described and ascertained the nature of my said inven- 2
tion, and in what mannor the same is to be performed, I declaro that what I
claim is :-
1. The application of a variable feed to bronzing machines, substantially as and for
the purposes hereinbefore described.
2. In the construction of bronzing machines, the combination therewith of the
-improved variable feed, consisting of the cam m, levers n and o, shifting connecting
rod p, spring o³, toothed rack of driving a loose pinion carrying the pawl r, actuating
the ratchet wheels keyed to the axle of the roller d, severally operating substantially
as hereinbefore described and shown by the drawings.
3. In combination with the cylinder bronzing machines as aforesaid, the application
and use of the rotating brushesfgi and friction roller h, substantially as hereinbefore
described and shown by the drawings.
4. In combination with bronzing machines as aforesaid, the application and use of
the trays for collecting the superfluous powder, substantially as hereinbefore
described and shown by the drawings.
11000