Improvements in and relating to Beater Plates of Threshing Machines.
Year: 1895

page_text: Date of Application, 31st May, 1895
Complete Specification Left. 29th Aug., 1895-Accepted, 5th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in and relating to Beater Plates of Threshing
Machines.
I, HARRY FISHER, of Kingfisher Steel Works, Rockingham Street, City of
Sheffield, Manufacturer and Merchant, do hereby declare the nature of my
invention to be as follows:-
Beater plates, which are long metal bars having deep corrugations or teeth formed
diagonally across their outside or upper face are usually secured to the drum or
other revolving framework by means of bolts passed through them, and it is to
dispense with the trouble and expense of making these bolt holes through the teeth,
aud the use of specially formed bolts to restore the form of the tooth when cut
away, that I propose a new method of fastening these plates.
I propose to construct, (preferably by rolling) a longitudinal rib upon the.
underside of the otherwise flat face of the beater plate, so that the cross section
would resemble the form of the letter T, and through this rib I make the desired
number of bolt holes.
The bed plates upon which the beater plates are usually fixed, I propose also to
make with a depending edge prepared with a corresponding number of bolt holes,
to enable the beater plates to be bolted thereto.
Where bed plates are not used, the rib upon the beater plate may be let into
the wood drum or barrel, and be secured by means of the before mentioned holes.
The bottom edge of either the rib upon the beater plate, or that upon the
bed plate may be returned so as to pass under the edge of the opposite rib and form
a support.
Dated 17 J
1005
+
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in and relating to Beater Plates of Threshing
Machines.
I, HARRY FISHER of Kingfisher Steel Works, Rockingham Street City of
Sheffield, Manufacturer and Merchant do hereby declare the nature of this invention
and in what manner the same has to be performed, to be particularly described and
ascertained in and by the following statement :-
The beater plates to which my invention refers, are long metal bars having deep
corrugations or teeth formed diagonally across their outside or upper face, and they
are usually secured to the drum or other revolving framework by means of bolts
passed through them, and it is chiefly to dispense with the trouble and expence of
making these bolt holes through the corrugated surface, and to avoid the use of
specially formed bolts to fill up the gap and to restore the form of the tooth
which the bolt hole partially cuts away, that I have invented a new method of
fastening these beater plates.

page_text: The method I propose is illustrated in the annexed sheet of drawings.
Fig. 1, represents a short section of beater plate and end view of same.
Fig. 2, section of beater plate and method of securing same to drum.
Fig. 3, plan of Fig. 2.
Fig. 4, plan of modified form of fastening.
In carrying out my invention, I construct upon the underside of the beater plate
which is usually made flat, a longitudinal rib A, and this conveniently done in the
process of rolling, its cross section then somewhat resembles the configuration of the
letter T.
This longitudinal depending rib A, constitutes the chief means by which the
beater plate is secured, and by its use, I avoid having to make bolt holes through
the ribbed or toothed face of the plate.
In the method of securing shown in Figs. 2, & 3, I make a T shaped slot or
opening B, in the rib A, as shown in Fig. 1, the upper part being to receive the
annular bar C, which forms part of the framework of the drum upon which the
beater plates are secured.
At intervals in these bars C, I make notches or recesses D, which reduce the
width of the bar at that point so that it will pass through the mouth or narrow part
of the opening B, and permit the beater plate to be passed forward on to the full size
part of the bar as seen in Fig. 2.
Holes are also made through the bars C, to receive the stay bolts E, F, which
secure the two stay blocks G, H, upon which the beater plate rests and by which it
is prevented moving laterally.
In the method illustrated in Fig. 4, the depending rib A, is made rather deeper
than is necessary for the method before described, and the stay blocks G, H, are
also made with depending ribs G2 and H2.
The circular parts of the framework C, are made in sections corresponding
with the number of the beater plates, and the ends of each section are bent
down at C2 and through all these depending parts C², G2, H2, and A, one or
more bolts I, is or are passed by which the whole of the several parts are firmly
held together.
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. A beater plate for threshing machines having a longitudinal rib upon its
underside for the purpose of securing it to the framework of the drum to which
such beater plates are fixed, as hereinbefore described.
2. The method of and means for securing beater plates of threshing machines to
their supporting frames, substantially as herein before described, and as shown in
Figs. 2 & 3, of the annexed drawings.
3. The method of and means for securing beater plates of threshing machines to
their supporting frames, substantially as herein before described, and as shown in
Fig. 4, of the annexed drawing.
Dated the 12th day of
------------
HALLI UŻY U
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.