An Improved Wedge employed as a Tool in the Getting of Coal.
Year: 1891

page_text: Date of Application, 21st July, 1891
Complete Specification Left, 19th Apr., 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
An Improved Wedge employed as a Tool in the Getting of Coal.
We THOMAS WHITE of Thorpe Hesley Kimberworth Rotherham in the County
of York Engineer and HORACE BROUGHTON NASH of Victoria Road Barnsley in
the County aforesaid Mining Engineer do hereby declare the nature of this
invention to be as follows:-
Our present invention relates to wedges employed in the getting of coal and the
object thereof is to so form or construct our improved wedge that during the driving
or forcing of the same between the coal in the usual way the said improved wedge
will both cut and wedge three ways simultaneously thereby facilitating the getting
of the coal and rendering the wedging operation more safe to attain which we form
our improved wedge with a flat wedge shape portion on the underside thereof and a
tapered triangular portion on the upper side that is to say our improved wedge is
formed with three tapered wings two horizontal and flat and the third vertical and
triangular in cross section.
The said wedge has a stern whereby it may receive the necessary blow or
pressure for driving it between the coal.
Dated this 20th day of July 1891.
H. F. BOUGHTON, M.I. Mech. E.,
London, Sheffield, and Barnsley.
COMPLETE SPECIFICATION.
An Improved Wedge employed as a Tool in the Getting of Coal.
We THOMAS WHITE of Thorpe Hesley, Kimberworth, Rotherham in the County
of York, Engineer and HORACE BROUGHTON NASI of Victoria Road, Barnsley
in the County aforesaid, Mining 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 :-
Our present invention relates to wedges employed in the getting of coal, and the
object thereof is to form or construct our improved wedge that during the driving
or forcing of the same between the coal in the usual way, the said improved wedge
will both cut and wedge three ways simultaneously, thereby facilitating the getting
of coal, and rendering the wedging operation more safe, to attain which we form
our improved wedge as set forth in the accompanying drawings which is typically
illustrative of the same, but not a final form, as it will be obvious that the same may
vary in width, length and depth to suit requirements.
Fig. 1 is an end view, Fig. 2 a side elevation, and Fig. 3 a plan of our said
improved wedge.
Like letters refer to similar parts of said wedge in each view.
Our improved wedge has a flat wedge-shape portion a' on the underside thereof,
and a tapered, triangular portion a² on the upper side, that is to say, the said
improved wedge is formed with three tapered wings, two horizontal a' and flat, and
the third a vertical and triangular in cross section as shewn at Fig. 1 of the
accompanying drawings. The said wedge has preferably a stern a³, whereby it
may receive the necessary blow, blows or pressure for forcing or driving it between
the coal.

page_text: 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 :
1. An improved wedge employed as a tool for the getting of coal constructed
with three tapered wings a' a¹ and a³, the two tapered wings a¹, a', being horizontal
and flat, and the wing a vertical and triangular in cross section substantially as
described and illustrated.
Dated this 16th day of Anril 1892
H. F. BOUGHTON, M.I.M.E.,
Agent for the Applicants.