mprovements in Machines for applying Bronze and other Powders to Printed Surfaces of Paper, Card, Fabric, and the like,
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
mprovements in Machines for applying Bronze and other Powders
to Printed Surfaces of Paper, Card, Fabric, and the like,
I, WILLIAM BREWER SILVERLOCK, of 92, Blackfriars Road, in the County of Surrey,
Printer, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in machines for applying bronze and other
powders to printed surfaces of paper, card, fabric and the like, and is intended to be
used in conjunction with my machine described and claimed in my Specification
No. 6621, bearing date March 18th, 1898.
An intermediate roller between powder duct roller and cylinder and running at a
very slow speed as compared with that of the cylinder; it also runs in same direction
as cylinder.
This roller is in touch with powder duct roller and the cylinder at same time, it
takes its supply of powder from the duct roller and imparts it to the sheet on
cylinder.
.:
The duct roller I make to run very slowly in same direction and I supply it with a
fast and loose pulley, ratchet or other suitable appliance so that it can be stopped at
certain intervals and sent on again automatically, thus imparting powder at such
parts of the sheet where required. The intermediate roller may still remain running
but will not gather powder whilst the duct roller is not revolving.
The intermediate roller is covered with a very soft and yielding covering which
pressing on cylinder acts as a rubbing in pad (through the action of cylinder) drawing
the sheet under it. The revolving of this roller prevents any collection of foreign
matter as the surtace is continually being brought to light (uppermost). I also place
a comb or scraper to remove foreign matter from this roller automatically. This
roller may have a reciprocating motion if preferred.
In substitution for this roller I may use an endless band of soft plush mounted on
two three or more rollers.
After the sheet presses the above roller I arrange two or more rollers with soft
covering to act as and take the place of rubbing in pads. These rollers revolve in
same manner as intermediate roller but in addition have a reciprocating motion
in opposite direction. These rollers also may have an automatic cleaning apparatus
and the great advantage of these soft rollers acting as above is that they cannot (like
flat pads) collect permanently the foreign particles which would stretch or smear the
work on sheet.
Intermediate roller may also be arranged for intermittent contact with cylinder.
Also block pads may be used having four or more flat surfaces and capable of being
5 turned round and presenting a fresh surface as required and so used in place of the
other pad roller above described.
Motion for working duct roller by fast and loose pulley automatically.
Delivery of coated sheets and dusting or cleaning the back sides by a number of

page_text: rollers and brushes with reversible brushes which are reversed when after the sheet is
seized by the delivery rollers.
1000
J. P. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant.
Improvements in Machines for applying Bronze and other Powders
to Printed Surfaces of Paper, Card, Fabric, and the like.
I, WILLIAM BREWER SILVERLOCK, of 92, Blackfriars Road, in the County of Surrey,
Printer, 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 follow-
ing statement :-
My invention relates to improvements in machines for applying bronze and other
powders to printed surfaces of paper, card, fabric and the like.
And in order that my invention may be thoroughly understood, I now proceed to
describe the accompanying drawing thereof, reference being had to letters and figures
marked thereon.
Fig. 1, is a vertical section of the machine.
Fig. 2, is alternate sections e and f of the rubbing roller.
Fig. 3, is a view of the cylindrical rubbing rollers d with driving gear.
Fig. 4, is a part section shewing the cam p, antifriction roller g, leather covered
friction wheel intermediate wheels m and n with friction rollers, driving wheel o,
adjusting stud pe, slot g and adjusting nuts h.
Fig. 5, is a top plan of Fig. 4.
a is the cam, b adjustable stop, c rocking shaft, d cylindrical rubbing rollers,
i swash plate cam, ; long driving pinion and k sliding wheels.
The machine has a large cylinder » mounted on bearings in a suitable frames and
against or in touch with the cylinder place coating rollers (taking their supply of
powder from a trough or hopper), rubbing in rollers a covered with suitable material
for cleaning, polishing, and wiping the surplus powder from the sheets, also delivery
rollers t having a reversible cleaning roller u or brush on top which first guides and
then cleans the powder off the tail end of back of sheet. There is another roller v in-
frictional or other touch with these delivery rollers which nips the top of sheet and
draws it away from machine into delivery tray w.
All these rollers and pads have their adjustable bearings and the rollers are made
of different sizes and revolve at different speeds.
I use different hoppers or troughs also arrange their positions to suit the work to
be done.
The cylinder has one or more grippers, there is also a feed table x and all the
necessary mechanical arrangements for carrying the sheet through the machine
during the process of coating etc.
In carrying my invention into practice, I construct the machine with an inter-
mediate roller y between powder duct roller z and cylinder r and running at a very
slow speed as compared with that of the cylinder; it also runs preferably in the same
direction as cylinder r.
This roller is in touch with powder duct roller z and the cylinder r at same time,
it takes its supply of powder from the duct roller z and imparts it to the sheet
on cylinder.
Divisions to bronze trough can be either permanent or removable and as they
would be made of thin metal plate they might as well be permanent and the bronze 5

page_text: powder will then be fed in all along as in the case of soli pronzing,
visions for light work.
In changing or cleaning out the bronze or powder all divisions are emptied at once
if there were no divisions, simply by swinging back the plate which presses against
e roller and powder falls into tray.
Z
=
The duct roller I make to run very slowly in same direction and I supply it with
fast and loose pulley, ratchet or other suitable appliance so that it can be stopped
t certain intervals and sent on again automatically, thus imparting powder at such
The intermediate roller y may still remain
arts of the sheet where required.
unning but will not gather powder whilst the duct roller is not revolving.
The intermediate roller is covered with a soft and yielding covering which
ressing on cylinder acts as a coating and rubbing in pad (through the action of
ylinder) the sheet being drawn under it by the cylinder. The revolving of this
oller prevents any collection of foreign matter as the surface is continually being
brought to light (uppermost). I also place a comb or scraper b¹ to remove foreign
natter from the roller z automatically. This roller may have a reciprocating motion
f preferred, and may run at same surface speed of cylinder if required.
In substitution for this roller I may use an endless band of soft plush mounted on
two three or more rollers.
After the sheet passes the above bronzing roller y I arrange two or more of the
rollers d with soft covering to act as and take the place of rubbing in pads. These
rollers revolve in same manner as intermediate.roller y but.in addition have a recipro-
cating motion in opposite direction by means of the swash plate cam Fig. 3. These
rollers also may have an automatic cleaning apparatus and the great advantage of
these soft rollers acting as above is that they cannot (like flat pads) collect perma-
nently the foreign particles which would smear the work on sheet.
Intermediate roller y may also be arranged for intermittent contact with
cylinder r.
Also block pads e and f may be used having four or more flat surfaces and capable
of being turned round by hand and presenting a fresh surface as required and so used
in place of the other pad rollers & above described.
Motion for working duct roller is by fast and loose pulley automatically.
Delivery of coated sheets and dusting or cleaning the front and back sides is by
means of a delivery.roller v¹, also by the rollers t and u which roller it is reversed
when the sheet is seized by the delivery roller vand the nipping delivery roller t¹.
Delivery roller v delivers the sheet between roller u and roller t which again delivers
the sheet between the nipping delivery roller t¹ and roller v.
The sheet is fed to gripper and is then carried under bronzing roller y which takes
its charge of bronze or powder from duct roller 2 under roller e¹ and roller pads d and
d', which rub in the bronze, then under polishing roller 6 and under rollers 7, 8, 9,
10, and 11, which dust off the surplus bronze or powder and further polish the work.
Then delivery roller v holds the sheet after gripper releases it and the sheet passes
between and t, and between rollers vand t¹, and directly these rollers and t¹ get
hold of the sheet, the roller u reverses its motion and brushes or cleans off
any bronze or powder which may be on the back of sheet.
The lever b2 which is mounted on the rocking shaft c is provided with a swell or
cushion b³ which falls against the top of the adjustable stop b in order to prevent the
lever 62 falling beyond the top of the stop after the cam a has passed the head or
roller 6 as the cylinder r revolves. The cam a is fixed to the cylinder r, the said
The table
cam a revolving with the cylinder, and as the cam a passes or strikes the head or
roller b the tail end 65 of the lever 62 raises the end of the table x.
works in a bearing on the arm be fixed to the frame.
In Fig's. 4, and 5, which I do not claim as any part of my invention a cam p is
mounted on the centre shaft p² this said cam p works against the antifriction roller
59 attached to a rocking lever p3 which is mounted on a shaft pt. At the end of the
rocking lever på is the slot g and to this slot g is connected the rod p5 by means of
the adjusting stud pe. The rod 205 is connected to a rod h³ and the frame 2 by the

page_text: adjusting nuts h for the purpose of operating the intermediate wheels m and n with
friction rollers and the driving wheel o; as these parts are well known further
explanation is not necessary.
The pads are for rubbing in the bronze which has been put on the sheet by
intermediate roller y, and they (the pads) have a quick lateral motion working
preferably in opposite directions.
The round roller also revolves slowly continuously by preference in the same
direction as cylinder », similar to the intermediate roller.
The hexagon, octagon or other like pads e and falso have the same lateral motion
but are turned round as required by hand or automatically by machinery.
The object in turning pads is that a fresh surface is brought to bear in the sheet
to he bronzed or coated and the previous one can then be seen by attendant. (through
a glass panel al or door at the top of the machine) whilst the machine is running and
any pieces of dirt or foreign matter removed and so prevent smearing the sheets and
without stopping the machine.
The roller is covered with plush or flannel and presses on the bronzed sheet and
runs at surface speed of cylinder, by friction or otherwise.
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 bronzing machine, an intermediate roller between powder duct roller and
cylinder and running at a very slow speed as compared with that of the cylinder
which runs in the preferably same direction, the intermediate roller being in touch
with powder duct roller and the cylinder at the same time, taking the supply of
powder from the duct roller and imparts it to the sheet on the cylinder, substantially
as described.
2. In a bronzing machine, the roller made to run slowly and fitted with a fast and
loose pulley, ratchet or other suitable appliance so that it can be stopped or set in
motion, substantially as described.
3. In a bronzing machine, the intermediate roller covered with a soft and yielding
covering which presses on cylinder to act as a rubbing in pad, and to prevent any
collection of foreign matter as the surface is continually being observed by the
operator through the glass panel or door, substantially as described.
4: In a bronzing machine, a substitution of an endless soft band of plush mounted
on two three or more rollers, for the and in place of the intermediate roller, substan-
tially as described.
5. In a bronzing machine, the pads or rollers revolve in the same manner as inter-
mediate roller having a reciprocating motion in opposite direction, the rollers having
an. automatic cleaning apparatus, substantially as described.
6. In a bronzing machine, block pads with four or more flat surfaces with a lateral
motion to be turned by hand or automatically by machinery, substantially as
described.
7. In a bronzing machine, the combination and arrangements of the various parts
substantially as fully described in the above specification and illustrated in the
accompanying drawing.
J. P. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant."