Plates, and Trays.cuit Pan
Year: 1887

page_text: Date of Application, 8th Sept., 1887
Specification Accepted, 11th Oct., 1887
Plates, and Trays.
JOSEPH BAKER, WILLIAM KING BAKER, and GEORGE SAMUEL BAKER, 58 (ity
Road London E.C. Engineers, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascertained
n and by the following statement :-
¡n
Our Invention relates to an Improved Machine for cleaning Biscuit Pans, Plates,
and Trays. Its construction, and method of operation will be readily understood by
reference to the annexed drawing in which
Fig. 1, is a general plan of the machine.
Fig. 2, a side elevation of the same.
Fig. 3; a side elevation to enlarged scale shewing one method of adjusting revolving
brushes.
Fig. 4, a modified method of mounting and adjusting the brushes.
Fig 5, an end view.
.
The pans, plates, or trays, employed to receive biscuits from the cutting machine
and convey them through the oven in which they are to be baked, require to be
cleansed from the adherent dough or paste left upon them from the previous baking
before being used again.
This operation is now generally performed by hand, and the particular object of
our invention is to displace manual labour, to clean the pans, plates, or trays, more
expeditiously, cheaply, and efficiently and to grease the same, by means of the improved
machine hereinafter described.
A, Figs. 1 and 2, is a frame of rectangular shape which is fastened together by
means of the bolts b b. Upon the transverse bearers B B, see also Fig. 5, are fastened
stretchers CC, which serve to support and guide the trays, and permit them to travel
with the minimum of friction. At or about the centre of the frame A, upon
spindle D D, we mount pitch chain wheels e e¹, upon which is stretched a pitch
chain, of suitable size for our purpose; this chain being fitted at regular intervals
with studs or projections, g g, for the purpose of engaging with the baking pans,
plates or trays m, placed upon the stretchers CC, mounted in adjustable bearings EE,
upon frame A, are two rotary or revolving brushes G G¹ the first of these G, being
[D...Al

page_text: preferably of rather stiffer make than G¹. These brushes we form of bristle, wire,
fibre, or other equivalent material suitable to our purpose; and the bristles, wire,
fibre or other material may either be placed upon the roller in a line parallel to its
axis of rotation, or they can be skewed or mounted spirally, so as to sweep the waste
to one corner, or as may be desired. A small amount of grease is usually placed
upon the leading or stiffer brush, for the purpose of greasing the pans, plates or
trays m, any surplus being removed by the follower G¹. These rotary or revolving
brushes are driven by the band pulley H, and by the two pitch chain wheels e³ et, and
chain, motion being also imparted to the pitch chain ³, conveying the trays by
means of the wheels e, e, and chain f".
To enable the rotary brushes to be adjusted to a nicety for any height of tray, the
spindles d, are fitted in adjustable bearings E E, so that by turning the hand wheels X,
the revolving brushes G G¹, can be raised or lowered as desired. See enlarged
views Fig. 3. We do not always confine ourselves to the particular method just
described for adjusting the brushes; Sometimes we mount them in the manner shewn
in Fig. 4. In this case the spindles d d, upon which the brushes revolve are mounted
in a metal frame and immediately under each spindle is pivoted a set pin k, fitted
with two lock nuts n n, passing through bosses formed in the frame A. By slacking
out either nut, the brushes can be adjusted to any required height and when so
adjusted can be held in position by the corresponding lock nut-The brushes are
made to revolve in a direction the reverse to that in which the pans, plates, or trays
are driven.
The operation of cleaning the pans, plates, or trays is performed as follows. The
machine being put in action by means of a belt driving the pulley H, the pans, plates,
or trays are placed upon the stretchers within the two rectangular guides & s, they
are then caught by the studs 9 g and forced forward by the travelling pitch chain f³,
driven by the wheels e e¹, to the brushes, and, by their action are cleansed and
greased.
We do not always confine ourselves to the pitch chain method of imparting motion
to the wheels e, es, e, as this can be effected equally well by ropes, gut bands;
leather straps or by ordinary spur, or helical gearing.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is-
1st. In a machine for cleaning biscuit pans, plates, and trays; and for greasing the
same, the particular combination and arrangement of the several parts described, for
the purposes set forth.
2nd. In a machine for cleaning biscuit pans, plates, and trays, the combination and
use of two or more revolving brushes; said brushes turning in a direction reverse to
that of the pans, plates, or trays; the application and use of wire, bristle, fibre or
like flexible substance for forming said brushes, and the method of mounting the
wire, bristle, or fibre parallel to the axis, or spirally upon the cylinders or rollers
substantially as described and set forth.
3rd. In a machine for cleaning biscuit pans, plates, and trays the methods of
raising or lowering the revolving brushes, and adjusting same, by means of the hand
wheel and screw device; or by the pivoted set pins furnished with locking nuts as
set forth.
FRANCIS M. ROGER,
Agent for Applicants.