Substances in a Semi-liquid or Powdered Broken up like State.
Year: 1887

page_text: Substances in a Semi-liquid or Powdered Broken up like State.
I, WILFRED CRESWICK of Grove House, Walton, Wakefield in the County
of York, Engineer 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 :-
The object of the invention is to provide apparatus for turning over, agitating and
propelling forward substances in a powdered broken up or semi-liquid state over
floors which are kept either heated or cooled according as the substances are to be
heated dried or cooled.
The floors may be of any desired width and length and may be of metal plate or
other material and may be heated or cooled in any suitable manner.
For turning over, agitating and propelling the substances forward over the surface
of the floors I use endless bands or chains which pass over pullies or drums at the
ends of the floor and receive a revolving motion from them. The bands or chains
carry two or more sets of small ploughs or inclined scrapers to act upon the material
which is resting on the floor and gradually move it forward from one end of the floor
to the other, at the same time turning it over and over so that all parts of it may be
uniformly acted upon. The ploughs or inclined scrapers in some of the sets are set
to turn the material over to one side and in the other sets to the other side so that
the material is kept uniformly spread over the surface of the floor. The speed at
which the material is caused to travel from one end of the floor to the other will
depend upon the inclination of the ploughs or scrapers and the speed of travel of the
endless chains.
In the drawings hereunto annexed Figure 1 is a diagram plan view and Figure 2 a
side view of apparatus constructed according to my invention.
A is the line of the floor. B B are pullies on axes C at the two ends of the floor.
Motion is communicated to either or both of these axes in any suitable manner.
D D are endless chains passing over the pullies B. E E are bars attached to the
chains. F F are inclined scrapers or ploughs carried by the bars. The scrapers or
ploughs on one bar are set to turn the material over sidewise in one direction and the

page_text: scrapers or ploughs on the other bar to turn it over in the opposite direction so that
there is no tendency to pile the material up on one side of the floor to a greater
depth than on the opposite side. Two bars only are shown attached to the chains but
any desired number of bars may be used according to the frequency with which it is
desired that the materials should be turned over and agitated. The number of
endless chains used is also immaterial. The material to be acted upon is fed on to
the floor at the end X and delivered off from it at the end Y.
The shape of the ploughs scrapers or agitators and their mode of attachment to the
chains may be much varied. A convenient arrangement is shown in plan and side
elevation at Figures 3 and 4. In this arrangement all the scrapers on the bar are set
in one direction it is not however essential that they should be so set as some might
be placed in one direction and some in the other as indicated by the diagram views
Figures 5 and 6.
The connections by which the scrapers are coupled to the chains may as shewn
at Figures 3 and 4 have counterbalance weights G secured to them these bear
against the undersides of the chains when the scrapers are in action and keep the
scraper bars parallel with the chains.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. The employment of scrapers or ploughs carried by revolving endless chains or
bands for turning over agitating and propelling material forwards over a heated or
cooled floor substantially as described.
2. The construction of apparatus for drying heating or cooling substantially as
herein before described and illustrated in the drawings annexed.
Dated thin 14th dox
Nh
1007
CARPMAEL & Co.,
Agents for the Applicant.