Year: 1888

page_text: We HENRY SHILTON, Overseer, and HERBERT MAY, Playing Card Maker, both of
3 Newton Street, High Holborn in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:-
The object of the present invention is to construct a machine for bronzing sheets
and at the same
of paper, card board, or other material, in an expeditious manner,
time as efficiently as it can be done by hand.
To this end we construct a machine provided with a driving shaft, covered rubbing
or bronzing rollers, supporting rollers or spindles, transverse feeding rollers, and
longitudinally travelling endless bands for passing the paper, card, or other material
to be bronzed, through the machine.
To the rubbing rollers we give, by suitable gearing, a reciprocating motion in the
direction of their axes, in addition to their rotary motion, and in this manner obtain
a movement similar to that of hand rubbing.
The material to be operated upon is prepared to receive the bronze by printing
or otherwise, and is fed by hand into the machine at the front end, where it is
gripped by the feeding rollers and travelling bands above mentioned.
Bronze is conveyed onto the material as it proceeds from a box or hopper by an
endless delivery, adjustable to suit different widths of material, and is distributed over
the surface of the material by transversely travelling tapes driven by suitably arranged
bevil gearing. The material then passes between the supporting spindles and the
rubbing rollers, by which latter the bronze is well rubbed in, and caused to adhere at
the parts prepared.
On leaving the machine, the material passes a second set of transversely travelling
tapes, driven as aforesaid, by which the surplus bronze is removed, and finally
passes through a pair of transverse delivery rollers fixed at back end of the
hine

page_text: It is preferred to mount the rubbing or bronzing rollers in adjustable roller
bearings carried by moveable plates on the side framing of the machine, which
plates are so arranged as to allow of the easy removal of the rollers for cleaning or
changing.
COMPLETE SPECIFICATION.
Improvements in Bronzing Machines.
We HENRY SHILTON, Overseer, and HERBERT MAY, Playing Card Maker, both
of 3 Newton Street, High Holborn in the County of Middlesex, 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 relates to mechanism for applying bronze, gilt, and the like,
in the form of a metallic powder, to paper, card, and other material for ornamental
purposes.
Hitherto it has been usual to dust the powder onto the material prepared by printing
or otherwise to receive it, and to make it adhere by pressure or hand rubbing, the
excess of powder being removed by hand wiping.
The plan of dusting or sifting the powder onto the material to be bronzed or
powdered, is attended with considerable waste, for the powder is caused to fly 'about,
and on this account, if the machine is not carefully encased, the room is injuriously
filled with particles floating in the air, and covering the ceiling and floor. Moreover,
the finer particles having been shaken through the sieve, the coarser remain unused and
unusable in the hopper.
According to our invention, we provide a machine which will apply the bronze to
the prepared card, distribute it, rub it on in a manner as efficient as hand rubbing, and
wipe off the superfluous powder into a suitable receptacle, from whence it can be taken
for further use.
In a machine embodying our improvements, bronze is contained in a suitably placed
trough, and conveyed to the material to be operated upon by an endless travelling
band, preferably of the pile fabric known as seal cloth. The distribution of the
powder over the whole width of the paper, is effected by transversely travelling belts,
also of seal cloth. The paper is then advanced by a travelling apron, or its equivalent,
to rubbing rolls covered with seal cloth, to which is given, in addition to a rotary
motion, a reciprocating movement in the direction of their axes, and by this means
the bronze is well rubbed in and caused to adhere to the prepared parts. After the

page_text: rubbing, and prior to the delivery of the bronzed work, the excess of powder is
removed by transversely travelling bands similar to those used for distributing the
powder.
In the accompanying drawings:-
Fig. 1 is a sectional side elevation of our machine, and
Fig. 2 is a sectional plan on the line xx of Fig. 1.
A is the machine framing mounted suitably above a hopper, into which all the
excess of powder wiped off the material being treated falls. B is a main driving
shaft extending across the framing, and provided with bearings therein, and having
also a bearing in a bracket secured outside the framing. The shaft is furnished with
fast and loose pulleys to receive a driving band from any suitable motor, and from it
all the movements of the machine are communicated.
C is an endless travelling apron, consisting of a rubber cloth belt, or its equivalent,
passing over the rolls c c. ecare supporting rolls for the belt beneath the rubbing
rollers D, with three of which the machine is provided. E is a number of endless
strips of elastic passing side by side over the rollers e e¹. e² is another roller forming
with e a pair of feed rolls. e¹³ are supporting rollers for the strips of elastic E at
the point where the bronze is delivered by the endless band of seal cloth F, which
passes through the trough G, around the roller mounted in suitable bearings therein,
and rotated by a pawl and ratchet arrangement at its end. ffare guide rollers for
the band F, as also are the rollers ff, the latter being carried upon castings sliding
in vertical slots in the framing on either side of the machine, and provided with set
screws for adjusting their position in the slots. f3 is an additional guide roller
adjustable in a horizontal slot, for regulating the tension of the band. The apron C
has a similar adjusting roller c* for the like purpose.
HH and H'H' are the endless distributing and wiping belts travelling across the
machine in contact with the apron C, preferably in different directions. These belts
are also of a pile fabric, and are carried upon spindles mounted in collars attached
by tension screws to the framing, and driven by pullies and driving bands, as
presently described. These distributing and wiping belts are capable of a slight
vertical adjustment.
The spindles of the rubbing rollers D are mounted in bearings in the framing, but
on one side of the machine, the part of the framing carrying the bearing is
detachable (see Fig. 2), so as to permit of the rollers being removed for cleaning
or repairs.
The driving of the rubbing rollers is effected in the following manner :-Opposite
the ends of the spindles are mounted, upon stud axles in the bracket D*, the pinions d,
which are in gear
with one another through the intermediate wheels d¹. The first of
the series of the pinions is driven by a toothed wheel on the main driving shaft B.
The pinions d have, on their inner faces, pins d², which project parallel to the
excess of rubbing rollers, and take against transverse pins with which the spindles
thereof are provided. This mode of connection permits the driving of the rollers
in a rotary direction to continue during the reciprocation or shogging movement
which is given to the said rollers, this shogging movement being imparted by
mechanisin placed on the opposite side of the machine, as shewn in Fig. 2.
The spindles of the rubbing rollers are extended somewhat beyond the framing on
the side opposite to the mechanism just described, and are each provided with a pair
of collars, between which lie the ends of the pivotted levers ii. The abutting ends
of the levers fit loosely into the collars, so that a rocking movement imparted to
one is communicated to the other. A rocking movement is given to the lever i by a
projecting arm fixed thereto, to the end of which arın is pivotted a rod k¹ connected
to the excentric pin of the disc of the rotating shaft K. Rotary movement is com-
municated to the shaft K through the pinion keyed on the end thereof, and through
the intermediate wheel 6 from the pinion on the main shaft B. The rocking of the
lever i, and with it i¹, causes the ends thereof to draw to and fro the rubbing rollers by
means of the collars on their spindles; thus, a reciprocating as well as a rotary
movement is given to them.

page_text: The pinion on the main shaft, the intermediate gear wheel 61, the pinion k², and
the gear wheel 3 mounted on a stud axle in the bracket on the framing, form a train
of gearing for imparting travelling movement to the apron C, and elastic strips E,
through the toothed wheels wherewith the spindles c and'e are provided. The roller f
rotating in the trough G, receives an intermittent rotary motion from the pawl m
pivotted to the rocking casting M, and taking into the teeth of the ratchet wheel f*
fast on the end of the roller f. The rocking of the casting M is effected by the
connecting rod m¹ and crank m² upon the shaft of the gear wheel 65, which receives
its rotary movement from the main shaft B by the pinions 6 and 6. The speed of
rotation of the roller can be adjusted by altering the throw of the crank, and
by this means the supply of powder to the work is regulated. The pinions b 64
&& (see Fig. 1) form a train for communicating rotary movement to the
pulley N, from which the driving bands n and n¹ are led over idle pulleys n² n³
to the pulleys on the rollers of the distributing and wiping belts H H and H¹ H'.
The various gear wheels and pullies are proportioned to suit circumstances,
but the speed of the rubbing rollers will be in excess of the rate of travel of
the work being treated. ssare lugs against which the moveable part of the
framing abuts. P P P are small guide rollers between the rubbing rollers for
keeping the work in contact with the advancing apron C. The action of the
apparatus is as follows:-
The work to to be treated is fed by hand into the bite of the feed rollers e e² and is
advanced by the elastic strips E to contact with the belt F carrying the powder. A
further advance brings the work to the travelling apron C, which carries it beneath
the transversely travelling distributors H H, which lay the powder smoothly over the
whole surface as the work proceeds. The rubbing rolls d d d then come into action,
and the powder is caused to thoroughly adhere to the prepared parts of the work,
which at this point receives the support of the rollers c c c¹, as well as of the
apron C. Before reaching the exit, the wipers H H have to be passed, which
travelling in opposite directions, wipe off the excess of bronze or powder into the
hopper below.
The bronze or powder is prevented from falling from the trough by the scraper o
shown in Fig. 1. It is sometimes desirable to contract the delivery laterally, and this
can be readily effected by providing the trough G with sliding ends.
If it is desired to pass the work through the machine a second time for cleaning
purposes, the guide rollers ƒ ƒ³ of the bronzing band are loosed, and the band is
lifted out of contact with the work, the pawl m is thrown out of action, and the supply
of powder is thereby cut off. The rubbing rollers, also the wipers and distributors,
are perfectly free from powder as soon as the supply is interrupted, and thereby an
efficient cleaning can be effected.
Having now particulary described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
clain is-
1. A machine for bronzing, gilding and the like, wherein the powder is delivered,
spread, rubbed onto the work, and the excess removed, as in the manner herein
shown and described.
2. In a machine for bronzing, gilding, and the like, the employment of an endless
delivery band, as F, passing through the powder trough, and operated by a pawl and
ratchet arrangement, substantially as described and shown.
Dated this 21st day of December 1888.
NEWTON & SON,
Agents for the Applicants,