Improvements in the Runners of Edge Runner Mills for Disintegrating Cement Clinker.
Year: 1890

page_text: Date of Application, 5th July, 1890
Complete Specification Left, 1st Apr., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Runners of Edge Runner Mills for
Disintegrating Cement Clinker.
I WILLIAM GEORGE MARGETTS of Wouldham in the County of Kent
Gentleman do hereby declare the nature of this invention to be as follows:-
In certain mills for disintegrating cement clinker by the action of edge runners
the runners are provided with metal tyres which are secured to the body or main
part of the runners by means of wedges. This means of securing the tyres is
objectionable on account of the work involved in arranging and securing the wedges
and the time occupied therein and also on account of the liability of the wedges to
become loosened by the working of the mill.
The object of my invention is to secure the tyres to the body or main part of the
runners by means unattended by these objections.
According to my said invention I secure the tyres to the runners by the insertion
between the tyres and the runners of molten lead or other suitable metal or alloy
fusible at a comparatively low temperature.
In some cases I also secure metal
plates at the sides of the runners for the purpose of preventing displacement of the
lead or of the tyres.
Dated this 5th day of July 1890.
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Runners of Edge Runner Mills for
Disintegrating Cement Clinker.
I WILLIAM GEORGE MARGETTS of Wouldham in the County of Kent
Gentleman 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:-
In certain mills for disintegrating cement clinker by the action of edge runners
the runners are provided with metal tyres which are secured to the body or main
part of the runners by means of wedges. This means of securing the tyres is
objectionable on account of the work involved in arranging and securing the wedges
and the time occupied therein and also on account of the liability of the wedges to
become loosened by the working of the mill.
The object of my invention is to secure the tyres to the body or main part of the
runners by means unattended by these objections.
According to my said invention I secure the tyres to the runners by the insertion
between the tyres and the runners of molten lead or other suitable metal or alloy
fusible at a comparatively low temperature. In some cases I also secure metal
plates or rings at the sides of the runners for the purpose of preventing displace-
ment of the lead or of the tyres.
Figure 1 of the accompanying drawing is a side elevation of a portion of a runner
of the kind herein before referred to the tyre of which is secured to the body
according to my invention and
Figure 2 is a transverse section taken on the line A Figure 1.
The said drawing is hereinafter referred to by the letters marked thereon. The
same letters of reference indicate the same parts in both figures of the drawing.
The body of the runner which is of ordinary construction consists of concrete a

page_text: enclosed in a metal case or shell formed in two parts bc and secured together by
bolts d d and nuts e e. f is the tyre. g is the lead or other suitable metal filling
the space between the periphery of the body of the runner and the inner face of
the tyre and hi are the metal rings by which displacement of the metal filling is
prevented the said rings being secured in place by means of bolts jj and nuts k k.
As represented in Figure 2 of the accompanying drawing the shanks of the said
bolts pass through or are embedded in the metal filling and the ring his
secured by the heads of the said bolts which bear against it and the ring i is
secured by the nuts kk screwed on the said bolts which nuts bear against the said
plate i.
In carrying out my invention I pass the bolts jj through the ring h and rest the
outer faces of the heads of the said bolts on a level surface. The said ring is thus
supported horizontally with its inner face uppermost the shanks of the bolts j j
projecting above the said face. I then place and support the body a b c of the
runner and the tyre ƒ in the required positions relatively to each other and to
the said ring and pour molten lead or other metal or alloy into the space between
the body and tyre of the runner and put the ring i in place and secure it by
screwing the nuts k k on the ends of the bolts which project through the said
plate i.
In some cases I substitute a number of plates of segmental form for the rings hi.
My invention is not confined to the precise means herein before described for
preventing change of the relative position of the metal filling gas this may be
effected by other means. For instance the periphery of the body of the runner and
the inner part of the tyre may have projections or hollows or both formed on or in
them so as to ensure secure connection of the said parts by the metal filling alone.
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
Securing the tyres to the bodies of runners of the kind hereinbefore referred to
by inserting lead or other readily fusible metal or alloy in a molten state between
the said tyres and bodies.
Dated the lot do of An 1901
W. T. WHITEMAN,
Agent for the Applicant.