Improvements in Machinery or Apparatus for Flouring Baking Pans and Covering other articles with Powdered Material.
Year: 1890

page_text: Date of Application, 23rd May, 1890
Complete Specification Left, 18th Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus for Flouring Baking Pans
and Covering other articles with Powdered Material.
We, ELLIS CARR, of Drummond Road, Bermondsey, in the County of Surrey,
a Member of the firm of Peek, Frean & Co., Biscuit Manufacturers, and JOHN
HUBAND GREEN, Mechanician, in the employ of the said firm, do hereby declare
the nature of this invention to be as follows:-
This invention relates to improved machinery or apparatus for automatically
covering any articles such as iron baking pans boards, biscuits cakes and the like
with a fine and evenly distributed layer of powdered material such as flour.
In order when baking certain articles such as some kinds of cakes and biscuits on
sheet metal pans or moulds to prevent the baked articles sticking to the pans or
moulds it is usual to cover the latter with a fine layer of flour, and it is also
customary to cover some classes of goods with a fine layer of sugar either before or
after they are baked.
This has hitherto been done sometimes by hand and sometimes with the aid of
appliances so imperfect that the powdered material has not been distributed evenly
over the surface and in order to cover it sufficiently the quantity of material used
has been greatly in excess of what would be actually required were it evenly
distributed, the consequence being great waste of material. Extra labour has also
been necessary to remove the excess by means of a hand brush lightly used.
Now this invention has for its object to obviate the foregoing disadvantages for
which purpose the articles intended to receive the "dusting as it is called in the
trade are caused to pass under a revolving cylindrical brush in a horizontal
direction by means of a carrier caused to travel at a suitable speed and so that the
articles to be dusted do not come into actual contact with the brush.
This cylindrical brush revolves in contact with a roller parallel to it, which roller
is charged on its surface with a layer of the powdered material or "dusting," the
thickness of such layer being regulated by an adjustable slide in the side of a box
without a bottom which is placed over the roller and contains the supply of
powdered material or "dusting." To enable the roller to carry more readily its
layer of "dusting" it is clothed with some textile material preferably with felted
machine cloth such as is used in paper mills.
The action of the cylindrical brush when revolved against the roller charged as
aforesaid with the layer of powdered material is to throw the latter downwards
on to the articles passing beneath and the quantity can be regulated to a nicety by
means of the slide in the side of the box and by adjusting the speed of the roller.
In some cases in place of a single roller two can be employed with a band of
machine cloth passing round both and under the supply box. Also when it is
desired more thoroughly to distribute the powdered material the cylindrical brush
can be caused to revolve in the reverse direction, thus throwing the material
upwards instead of downwards and giving it a greater height from which to fall on
to the articles passing beneath.
To further distribute the "dusting" and correct any irregularity due to wear of
the bristles of the cylindrical brush a small fan can be provided with any suitable
number of blades this fan being arranged to revolve in the cloud of "dusting" as it
is thrown off by the brush. This fan may be of the same length as the cylindrical
brush or less as circumstances may dictate.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, Agent for Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery or Apparatus for Flouring Baking Pans
and Covering other articles with Powdered Material.
We, ELLIS CARR, of Drummond Road, Bermondsey, in the County of Surrey,
a Member of the firm of Peek, Frean & Co., Biscuit Manufacturers, and JOHN
HUBAND GREEN, Mechanician, in the employ of the said firm, 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 improved machinery or apparatus for automatically
covering any articles such as iron baking pans, boards, biscuits cakes and the like
with a fine and evenly distributed layer of powdered material such as flour.
In order when baking certain articles such as some kinds of cakes and biscuits
on sheet metal pans or moulds to prevent the baked articles sticking to the
pans or moulds it is usual to cover the latter with a fine layer of flour, and it
is also customary to cover some classes of goods with a fine layer of sugar
either before or after they are baked.
This has hitherto been done sometimes by hand and sometimes with the aid
of appliances so imperfect that the powdered material has not been distributed
evenly over the surface and in order to cover it sufficiently the quantity of
material used has been greatly in excess of what would be actually required
were it evenly distributed the consequence being great waste of material.
Extra labour has also been necessary to remove the excess by means of a hand
brush lightly used.
Now this invention has for its object to obviate the foregoing disadvantages for
which purpose the articles intended to receive the "dusting as it is called in the
trade are caused to pass under a revolving cylindrical brush in a horizontal
direction by means of a carrier caused to travel at a suitable speed and so that
the articles to be dusted do not come into actual contact with the brush.
This cylindrical brush revolves in contact with a roller parallel to it, which roller
is charged on its surface with a layer of the powdered material or "dusting," the
thickness of such layer being regulated by an adjustable slide in the side of a box
without a bottom which is placed over the roller and contains the supply of
powdered material or "dusting." To enable the roller to carry more readily its
layer of "dusting" it is clothed with some textile material preferably with felted
machine cloth such as is used in paper mills.
The action of the cylindrical brush when revolved against the roller charged as
aforesaid with the layer of powdered material is to throw the latter downwards on
to the articles passing beneath and the quantity can be regulated to a nicety by
means of the slide in the side of the box and by adjusting the speed of the roller.
In some cases in place of a single roller two can be employed with a band of
machine cloth passing round both and under the supply box. Also when it is
desired more thoroughly to distribute the powdered material the cylindrical brush
can be caused to revolve in the reverse direction, thus throwing the material
upwards instead of downwards and giving it a greater height from which to fall on
to the articles passing beneath.
To further distribute the "dusting" and correct any irregularity due to wear of
the bristles of the cylindrical brush a small fan can be provided with any suitable
number of blades this fan being arranged to revolve in the cloud of "dusting" as
it is thrown off by the brush. This fan may be of the same length as the cylindrical
brush or less as circumstances may dictate.
The mode of carrying this invention into practical effect will be readily
understood by aid of the accompanying drawings illustrative of two arrangements
such as above referred to, namely, one with a single roller (Figs. 1 and 3) and one
with two rollers and an endless band (Fig. 2).
In each of these arrangements A is the revolving cylindrical brush, B the box

page_text: containing the supply of powdered material, C the roller or rollers; D is machine
cloth placed as a covering around the roller in the single roller arrangement (Fig. 1),
but forming an endless band encircling the two rollers in the two-roller arrange-
ment (Fig. 2); E is the slide by raising or lowering which the thickness of the
layer of powdered material is regulated, H is the band or chain travelling in the
direction of the arrows, and J the article being coated with the layer of " dusting."
K is the small fan revolving in the stream of "dusting" indicated by the arrows.
In the arrangement Figure I it is placed below the cylindrical brush; in Fig. II
it is above the brush; the adoption of the one position or the other depending upon
the direction in which the brush is made to revolve.
As will be evident the sizes of the various parts of the apparatus and the speed
at which they are driven will depend upon circumstances. For dusting pans or
unbaked biscuits or cakes with flour the apparatus may advantageously be
constructed according to the arrangement illustrated in Fig. 2, with wooden rollers C
4 inches in diameter x 15 inches long, and brush A with long bristles, this brush
being 4 inches in diameter and the same length as the rollers. The rollers may be
driven at a speed of from 2 to 30 revolutions per minute and the brush A. at
280 revolutions per minute.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what we
claim is :-
1. In a machine or apparatus for flouring or covering articles with powdered
material, a rotary brush, and a roller or rollers with covering or band of material
such as machine cloth the arrangement being such that powdered material is
supplied by the roller or rollers to the brush and by the latter is distributed over
the articles to be covered or dusted as described.
2. In a machine or apparatus for flouring or covering articles with powdered
material the construction and arrangement of parts described with reference
to Figs. 1 and 3 of the drawings whether with or without the fan.
3. In a machine or apparatus for flouring or covering articles with powdered
material the construction and arrangement of parts described with reference to
Fig. 2 of the drawings whether with or without the fan.
Dated this 18th day of February 1891.
ELLIS CARK.
W. Lloyd Wise,
Per F. J. Brougham,
46, Lincoln's Inn Fields, W.C., Agent for the Applicants..