Improvements in or connected with Grindstones.
Year: 1895

page_text: Date of Application, 27th Mar., 1595
Complete Specification Left, 24th D:c., 1895-Accepted, 25th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Grindstones.
We, ROBERT POLLARD and ROBERT RENTON GIBBS both of St. James'
Works, Mill Street, Liverpool in the County of Lancaster, Foreman and Managing
Director respectively do hereby declare the nature of this invention to be as
follows:-
This invention relates to grindstones and has for its object to prevent the stone
being constantly in the liquid when not in use, and consists in providing the
grindstone casing with an adjustable cup or trough to receive the liquid which is
required to be applied to the stone; the said cup or trough being adapted to be
raised into such a position as to enclose the lower portion of the stone, when the
latter is required to be used, thus moistening it, and to be lowered when the stone
is not being used, so that the latter will not be constantly in the liquid.
In carrying out this invention, we arrange loosely inside the casing which
supports the grindstone, a cup or trough to receive water or other liquid and
formed to partly enclose the lower periphery of the stone.
or
We provide the said cup or trough with a downwardly extending arm
extension, to the end of which is pivotally connected one end of a lever turning
on a suitable support, so that by operating said lever either by hand or foot, the
cup or trough containing the liquid may be raised towards the stone into position
for use; or may be allowed to drop by its own weight into the bottom of the casing
away from the stone when the latter is not in use.
We do not limit ourselves to the use of a lever for raising and lowering the cup
or trough, as it is obvious that any other suitable device may be employed.
Dated this 25th day of March 1895.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicants.
Improvements in or connected with Grindstones.
We, ROBERT POLLARD and ROBERT RENTON GIBBS both of St. James'
Works, Mill Street, Liverpool in the County of Lancaster, Foreman and Managing
Director respectively, do hereby declare the nature of this invention aud in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
This invention relates to grindstones and has for its object to prevent the stone
being constantly in the water when not in use. It consists in providing the
grindstone casing with an adjustable cup or trough to receive the water which is
required to be applied to the stone; the said cup or trough being adapted to be
raised into such a position as to submerge the lower portion of the stone, when the
latter is required to be used, thus moistening it, and to be lowered when the stone
is not being used, so that the latter will not be constantly in the liquid.

page_text: In carrying out this invention, we arrange loosely inside the casing which
supports the grindstone, a cup or trough to receive water or other liquid and
formed to partly enclose the lower periphery of the stone. We provide the said
cup or trough with a downwardly extending arm or extension, to the end of which
is pivotally connected one end of a lever turning on a suitable support, so that by
operating said lever either by hand or foot, the cup or trough containing the
liquid may be raised towards the stone into position for use, or may be allowed to
drop by its own weight into the bottom of the casing away from the stone when
the latter is not in use.
In the accompanying drawing, which is a sectional elevation of the invention,
A is the grindstone, B the frame on which the grindstone is mounted and on which
it rotates in bearings; C the trough adapted to hold the water, and d a stud
projecting laterally on each side of the trough through the slots F which allow of
the vertical travel of the studs. D is a link, one on each side of the frame, one
end of which is coupled to the stud d and the other to a treadle E.
In the
position depicted, the stone is not submerged in the water in the trough, but by
depressing the treadle E the trough C will be raised so that the stone will dip
into the water. G is a plug in the bottom of the trough by removing which
sediment can be removed, a corresponding hole being made in outer casing B.
We do not confine ourselves to the use of the lever E for raising and lowering
the cup or trough, as it is obvious that any suitable device may be employed.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The improvement in or connected with grindstones, which consists in providing
in combination with the grindstone an adjustable trough to hold the water which
is required to be applied to the stone, said trough being adapted by means of a
treadle, lever, or otherwise to be lifted towards the stone when required for use so
that the latter shall dip into the water, or be lowered when not in use, whereby
the water can be applied to the stoue or not as required.
2. In a grindstone having a frame on which the stone is mounted and on which
it revolves, the combination therewith of an adjustable water trough mounted in
proximity to the stone, and means such as a lever or other suitable device for
lifting and lowering the trough so as to apply the water in the trough to the
periphery of the stone or remove it therefrom, substantially as described.
3. The general combined arrangement and construction of parts forming our
improved grindstone, substantially as set forth.
Dated this 22nd dos of Decembar 1805
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.