Improvements in Machinery for Bronzing, Colouring, or otherwise Ornamenting Paper and other Material in Sheets or Continuous Rolls.
Year: 1887

page_text: Date of Application, 18th Apr., 1887.
Specification Accepted, 7th June, 1887.
Improvements in Machinery for Bronzing, Colouring, or otherwise
Ornamenting Paper and other Material in Sheets or Continuous
Rolls.
JOHN BROMLEY & THOMAS HARRISON Engineers and Machinists Belinda Street
Church Street Hunslet Leeds Yorkshire 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 has for its object improvements in machinery for Bronzing or
otherwise ornamenting paper & other material in sheets or continuous rolls & consists,
first, in a new & improved method of feeding, regulating & stopping the supply of
bronze or other ornamenting powder used for Bronzing or otherwise ornamenting
paper & other material second, a new & improved method of stretching & adjusting
the india-rubber travelling band or belt which carries the sheets of paper or other
material to be ornamented through the machine third, of a new & improved method of
setting or adjusting the polishing brush fourth, a new and improved method of driving
the various pulleys & rollers appertaining to bronzing or otherwise ornamenting
machines.
1st. In ordinary bronzing or otherwise ornamenting machines the box for supplying
the bronze or other ornamenting powder has a vibratory motion imparted it by
means of tappet or other motions, by our invention the box for supplying the bronze is
kept stationary & thereby avoiding the noise & the wear & tear attending the use of
tappet or other vibratory motions.
2nd. The travelling indiarubber band or belt by continually working over its rollers
looses some of its elasticity thereby working slack & allowing the said rollers to slip
round without moving the said indiarubber band or belt, by our invention the travelling
band can be stretched or adjusted as required.
3rd. In order to make up for the wearing of the polishing brush a moveable table
is placed between the indiarubber band or belt which being acted upon by screws is
raised to meet the brush thereby throwing the said band or belt out of shape &
position, by our invention the lifting of the band or belt is avoided by using an
adjustable polishing brush which can be raised or lowered as required.

page_text: 4th. The various pulleys driving the various brushes & rollers are driven by a
train of toothed wheel gearing which imparts to the said pulleys & rollers an unsteady
& noisy motion especially when the teeth are worn or the bearings out of order, by our
invention this unsteady and noisy motion is avoided & the brushes and rollers made to
run steadily and smoothly.
In order that our invention may be fully understood we annex a lettered drawing
showing the improvements in our invention to be applied to bronzing, colouring or
otherwise ornamenting paper.
Fig. 1 is a cross-sectional elevation.
Fig. 2 is an end elevation.
The paper or other material to be bronzed or otherwise coloured or ornamented is
fed into the machine by the rollers (a, d, E) and the indiarubber travelling belt (C).
The bronze or other powder is contained in a box (b) and is allowed to fall on the
paper or other material to be ornamented.
The said paper or other material to be ornamented is then passed by the
rollers (a, d, E) & the travelling belt (C) to the distributing or endless cross brush (f)
and along the said travelling belt (C) under a rapidly revolving drum or brush (K)
covered with plush or other suitable material to rub the bronze or other ornamenting
powder on to the prepared surface of the paper or other material which is then carried
by the travelling belt (C) under the cross endless brush (G) which removes any
surplus bronze remaining on the said paper or other material. The cross or endless
brushes (f) & (G) are passed over in the same manner as a belt from the shaft (r) on
to another shaft or roller placed on the opposite frame. The said shaft (2) which sets
the brushes (f) & (G) in motion is driven by a suitable pulley & belt.
The endless indiarubber belt (C) which carries the paper or other material to be
ornamented through the machine is cleaned from any powder or dust that may remain
on it by a revolving brush (H'). The said brush (H¹) extends from one frame to the
other and consists of a drum mounted with bristles or other material suitable for
cleaning the travelling belt (U).
The small rollers placed between the polishing brush (K) and the cross or endless
brush (G) are used for the purpose of keeping the paper or other material in a flat
state until it reaches the said brush G and are driven in the same manner as the
rollers (a) (d) (E). To effect the feeding, regulating & stopping the supply of the
bronze or other powder for bronzing or otherwise ornamenting paper, we use a
convenient kind of bore (b) Fig. 1, the top part (I) containing the bronze or other
ornamenting powder is divided into several moveable compartments which can be
enlarged or reduced according to the size of the sheet to be ornamented & which also
communicates with the bottom part of the box containing a revolving brush (J) made
of bristles or other suitable material, the ornamenting powder falling on the said
revolving brush is forced through an opening (Y) covered with gauze wire & from
thence on to the sheet to be ornamented. The supply of ornamenting powder is
regulated by increasing or decreasing the speed of the revolving brush (J), to effect
this the said brush is geared to shaft (O) Fig. 2 by means of the worm (N) & worm
wheel M, the shaft (0) having a loose speed cone or drum (P) which is driven by
another fixed speed cone or drum (Q) on the shaft (») and connected by the belt T.
The loose speed cone or drum (P) drives the shaft (0) by the friction produced by a
socket (U) keyed on the shaft & pressing one or more leather disks against the speed
cone or drum (P) the socket (U) being acted upon by a spiral or other suitable
spring (S). To throw the revolving brush (J) in or out of gear or stop the supply of
ornamenting powder from the box (b) an eccentric is let into the slot (1) & acted upon
by a lever (v) which throws the socket (U) against or from the drum or speed cone (P)
according to the direction it is moved.
To effect the adjusting or stretching of the travelling band or belt (C) Fig. 1 we
place the shaft or roller (X) through two or more convenient bearings or adjusting
brackets (W) which being let into the frame or other convenient place can be moved
by means of screws or other convenient substitutes acting against the frame & thereby

page_text: stretching or slackening the indiarubber belt (C) according to the direction the said
screws are moved.
To effect the setting or adjusting of the polishing brush (K) we place the said brush
in convenient bearings (Z) let into the frame or other convenient place & resting on
indiarubber cushions or other suitable springs (d) the bearings carrying the brush
are lowered by means of one or more screws (61) which press the bearings down
against the indiarubber cushion or spring (d¹) & thereby allowing the brush to be
brought lower down, to raise the said brush the pressure acting on the indiarubber
cushion or spring is removed thereby allowing the indiarubber cushion or spring to
force the brush upwards as required.
To effect the driving of the various pulleys connected with the various brushes &
rollers at any required speed or in any required direction without the usual train of
toothed wheel gearing we use a belt (F) which being carried from the main driving
pulley (E) & passed on to pulley (P) & from pulley (P¹) to pulley (H') & from
pulley (H) to pulley (a) & from there on to the main pulley (E¹) gives the required
result as to direction according to the way the said belt is carried or passed about the
said pulleys, or gives the required speed according to the size or ratio that one pulley
bears to another. In order that any slackness of the belt may be taken up or in order
to put more friction on the said pulleys we fix to the frame in a convenient position
one or more small adjusting pulley's (0¹) working in a slot (¹) & made to bear
either under or above the belt so as to take up the slackness, increase or reduce the
friction on the pulleys as required.
Having herein-before described a convenient arrangement wherein the improvements
in our invention may be applied to bronzing colouring or otherwise ornamenting
machines we wish it to be understood that we do not confine ourselves to any of the
details given as they may be varied or modified according to the special requirements
of different machines, nor do we confine ourselves to the application of our invention
or any part thereof to any particular bronzing colouring or otherwise ornamenting
machine but may apply our invention to any machine used for colouring or ornamenting
paper or other material whereupon the improvements in our invention can be
applied.
Having now particularly described and ascertained the nature of our said Invention
& in what manner the same is to be performed we declare that what we claim is
(First) An improved method of feeding regulating & stopping the supply of bronze
or other ornamenting powder used in bronzing colouring or otherwise ornamenting
machines, by a brush or drum covered with bristles or other suitable material which
being placed in a convenient box or case & made to revolve at a high or low rate of
speed by friction or other convenient kind of gearing can regulate the supply of the
said powder to a large or small quantity as required or by the said brush being thrown
out of gear stops the supply altogether.
(Second) The stretching or otherwise adjusting the endless belt or travelling
band (C) by suitable & adjustable brackets or bearings which are connected with one
or both rollers carrying the said endless belt or travelling band.
(Third) An adjustable polishing brush K which being placed in suitable brackets
or bearings is raised or lowered as required by adjustable screws & springs.
(Fourth) An improved method of driving each of the various pulleys connected
with a bronzing colouring or otherwise ornamenting machine at any required speed
or in any required direction by a single belt being carried round the said pulleys in
manner as to give the required result.
Dated this 16th day of April 1887.