Coal and Stone, and for other such like Purposes.
Year: 1885

page_text: Coal and Stone, and for other such like Purposes.
4
We, THOMAS HUGH BELL of Middlesborough in the County of York Ironmaster
and WILLIAM RAMSAY of Tursdale Colliery in the County of Durham Colliery
Manager respectively do hereby declare the nature of our invention for "IMPROVE-
MENTS IN WEDGES OR IMPLEMENTS FOR WEDGING DOWN COAL AND STONE AND
FOR OTHER SUCH LIKE PURPOSES to be as follows:-
"
The wedge or implement is composed of a tube divided longitudinally into two
trough like halves.
At one end each trough has its sides cut away so as to form
it into a long wedge tapering to an edge at the end. A solid wedge tapered in the
opposite direction is inserted between the tapered ends of the two half tubes and
a stem having a screw thread cut along it passes back from the point of this solid
wedge through the tube. The screw projects beyond the ends of the two half tubes
and is passed through a hole in the centre of a flat plate. A nut is screwed on to
the screw and made to force the plate against the ends of the half tubes. A second
plate is likewise slipped on to the end of the screw and is by a second nut forced
towards the first plate but is kept at a distance from it by distance pieces
interposed between them.
When a hole has been bored in the coal or stone the wedge shaped ends of the
two halves of the divided tube with the solid wedge between them are inserted
into the hole. One of the plates is then slipped over the end of the screw stem
and the first nut is screwed on. The second plate is similarly slipped on to the
end of the screw and the second nut is screwed on until it forces the distance
pieces on this second plate up to and against the first plate and then by ratchet
braces applied to the two nuts the inner wedge is drawn outward and the two half
tubes are wedged asunder and made to break down the coal or stone. By using
two nuts and two ratchet braces as above described for drawing forward the screw
stem double the power can be obtained and there is less liability to break the stem
or screw than if a single nut only were used for the purpose.
Dated this 30th day of March 1885.
CARPMAEL & Co.,
Agents for the Applicants.

page_text: Improvements in Wedges or Implements for Wedging Down
Coal and Stone, and for other such like Purposes.
We, THOMAS HUGH BELL of Middlesbrough in the County of York Ironmaster
and WILLIAM RAMSAY of Tursdale Colliery in the County of Durham Colliery
Manager respectively 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 wedge or implement is composed of a tube divided longitudinally into two
trough like halves. At one end each trough has its sides cut away so as to form
it into a long wedge tapering to an edge at the end. A solid wedge tapered in the
opposite direction is inserted between the tapered ends of the two half tubes and
a stem having a screw thread cut along it passes back from the point of this solid
wedge through the tube. The screw projects beyond the ends of the two half
tubes and is passed through a hole in the centre of a flat plate. A nut is screwed
on to the screw and made to force the plate against the ends of the lialf tubes.
second plate is likewise slipped on to the end of the screw and is by a second nut
forced towards the first plate but is kept at a distance from it by distance pieces
interposed between them.
A
When a hole has been bored in the coal or stone the wedge shaped ends of the
two halves of the divided tube with the solid wedge between them are inserted
into the hole. One of the plates is then slipped over the end of the screw stem
and the first nut is screwed on. The second plate is similarly slipped on to the end
of the screw and the screw nut is screwed on until it forces the distance pieces on
this second plate up to and against the first plate and then by ratchet braces
applied to the two nuts, the inner wedge is drawn outward and the two half tubes
are wedged asunder and made to break down the coal or stone. By using two
nuts and two ratchet braces as above described for drawing forward the screw stem
double the power can be obtained and there is less liability to break the stem or
screw than if a single nut only were used for the purpose.
In order that our said invention may be most fully understood and readily
carried into effect we will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of our wedge implement for wedging down coal or
other mineral.
Figures 2 and 3 are end elevations.
Figures 4, 5 and are transverse sections taken respectively on the lines (A B)
(C D) and (E F) in Figure 1.
Figures 7, 8 and 9 show separately some of the parts.
A¹ A are two trough-like parts fitting together to form a tube but tapered away
at their ends to adapt them to receive between them a wedge B-This wedge is
provided with a stem B¹ on which a screw thread is cut. The stem extends beyond
the ends of the parts A¹ A' and there receives upon it plates C and D and screw

page_text: nuts E and F. The plates C and D are kept apart by distance pieces G G and
nuts G¹ G¹ secure the parts CD and G in place. The nuts E and F receive the
ratchet braces shown by the figures 8 and 9 which are constructed to fit the nuts.
The tool is used in the following manner :-
A suitable hole having been formed in the face of the coal, stone or other mineral,
the wedge B is introduced into it, and then the two trough like parts A¹ A² aro
also inserted. The plate C is then placed on the stem B₁ and brought to abut
against the ends of the parts A¹ A2; the nut E is now screwed on and the ratchet
brace shown at Figure 8 is put on to the nut. The second plate D is now placed
on the stem B1 and the nuts G¹ G¹ are screwed on to keep this plate in place.
Finally, the s-cond nut F is screwed on to the stem B¹ and the ratchet brace
shown by Figure 9 is placed upon it-The tool is now ready for use. The ratchet
braces are to be used simultaneously turning the nuts and F until the coal or
mineral yields to the wedges.
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 implement for wedging down coal and stone and for such like purposes, in
which wedges are drawn together by two nuts simultaneously screwed by means
of two ratchet braces on to a screw stem connected with one of the wedges whilst
the other wedge or wedges serves as an abutment for the nuts substantially as
described.
2. Our improved implement substantially as herein described and represented by
the annexed drawings.