An Improvement connected with Cross Bars and Bolts used for Fixing the Lids of Fuel Economizers in Position.
Year: 1889

page_text: Date of Application, 5th Mar., 1889
Complete Specification Left, 4th Dec., 1889-Accepted, 4th Jan., 1890
PROVISIONAL SPECIFICATION.
An Improvement connected with Cross Bars and Bolts used for
Fixing the Lids of Fuel Economizers in Position.
I, Sir EDWARD GREEN, Baronet, and M.P. for Wakefield, of Heath Old Hall,
Wakefield, in the County of York, Fuel Economizer Manufacturer, do hereby declare
the nature of this invention to be as follows: -
According to the usual method of securing lids of Fuel Economizers, cross bars
and bolts are used said bolts having a square or other shaped projecting head.
Now according to my invention, I obviate the projection and cast a tapered hole
preferably triangular in each cross bar to receive a correspondingly shaped bolt head,
so that the top of the head is flush or about flush with the surface of the cross bar.
I prefer that the triangular shaped hole in the cross bar has tapered corners in
which the bolt head sits, the tapered portions with the triangular portions terminating
in a circular aperture at the opposite side of the cross bar or otherwise to suit the
shape of the bolt.
Dated this 5th day of March 1889
H. GARDNER,
166, Fleet Street, London, Agent for the said Sir Edward Green, Baronet.
COMPLETE SPECIFICATION.
An Improvement connected with Cross Bars and Bolts used for
Fixing the Lids of Fuel Economizers in Position.
I, Sir EDWARD GREEN, Baronet and M.P. for Wakefield, of Heath Old Hall,
Wakefield, in the county of York, Fuel Economizer Manufacturer do hereby declare
the nature of my said invention and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement :-
According to the usual method of securing lids of Fuel Economizers cross bars
and bolts are used, said bolts having a square or other shaped head projecting below
the level of the cross bar.
Now according to my invention I obviate the projection and cast a tapered hole A,
preferably triangular, in each cross bar B as indicated at Figure of the annexed
drawings to receive a correspondingly shaped bolt head C, Figure 2, so that the top of
the head is flush or about flush with the surface of the cross bar B when in position
on the end of the tube or box D for securing the lid E. as at Figure 3.
I prefer
that the triangular shaped hole in the cross bar has angled or rounded corners in
which the bolt head sits, the tapered portion with the triangular portions terminating
in a circular aperture F at the opposite side of the cross bar or otherwise to suit the
shape of the bolt stem G.
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. The manufacture of cross bars with part triangular shaped hollows for receiving
the triangular shaped heads of bolts when employed for securing the lids of Fuel
Economizers in place, and without the usual projection, as described and substantially
as shewn in the annexed drawings.

page_text: 2. The employment of triangular or equivalent shaped headed bolts for fixing the
lids of Fuel Economizers in position said heads being within and flush or about flush
with the under surfaces of the cross bars as described and shown.
The 4th day of December 1889.
H. GARDNER,
166, Fleet Street, London, Agent for the said Sir E. Green, Bart.,
M.P.