IMPROVEMENTS IN VALVES OR TAPS USED FOR STEAM, WATER, GAS, OR OTHER LIQUID OR FLUID, SUCH VALVE OR TAP BEING SPECIALLY APPLICABLE FOR TALLOW CUPS FOR LUBRICATING PURPOSES."
Year: 1878

page_text: LETTERS PATENT to George Kershaw Ashworth, of Halifax, in the County of
York, Engineer, for the Invention of "IMPROVEMENTS IN VALVES OR TAPS
USED FOR STEAM, WATER, GAS, OR OTHER LIQUID OR FLUID, SUCH VALVE OR
TAP BEING SPECIALLY APPLICABLE FOR TALLOW CUPS FOR LUBRICATING
PURPOSES."
PROVISIONAL SPECIFICATION left by the said George Kershaw Ashworth
at the Office of the Commissioners of Patents on the 8th May 1878.
GEORGE KERSHAW ASHWORTH, of Halifax, in the County of York, Engineer.
"IMPROVEMENTS IN VALVES OR TAPS USED FOR STEAM, WATER, GAS, OR OTHER
LIQUID OR FLUID, SUCH VALVE OR TAP BEING SPECIALLY APPLICABLE FOR TALLOW
CUPS FOR LUBRICATING PURPOSES."
These improvements consist in constructing such valves or taps on the principle
of a "slide valve," such as are used for admitting steam into the cylinder of a steam
engine. The sliding part of the valve is made to reciprocate by means of an
eccentric or can instead of the usual slide rod and its stuffing box.
When used as a tallow cup the "ports" or openings of the valve are made to
communicate with an opening in the bottom of the cup, and also in communication
with the part required to be lubricated, and the length of the stroke given to the
slide is regulated to the greatest nicety by the throw of the eccentric or cam. A
ratchet wheel and catch is fixed on the end of the eccentric spindle, and motion
given thereto from any moving part of the engine or machine to which it is
applied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Kershaw Ashworth in the Great Seal Patent Office on the
8th November 1878.
GEORGE KERSHAW ASHWORTH, of Halifax, in the County of York, Engineer.
"IMPROVEMENTS IN VALVES OR TAPS USED FOR STEAM, WATER, GAS, OR OTHER
LIQUID OR FLUID, SUCH VALVE OR TAP BEING SPECIALLY APPLICABLE FOR TALLOW
CUPS FOR LUBRICATING PURPOSES."
The improvements, consist in constructing such valves or taps on the principle
of a "slide valve," such as are used for admitting steam into the cylinder of a steam
engine. The sliding part of the valve is made to reciprocate by means of an
eccentric or cam instead of the usual slide rod and its stuffing box.
A
When used as a tallow cup the "ports" or openings of the valve are made to
communicate with an opening in the bottom of the cup, and also in communication
with the part required to be lubricated, and the length of the stroke given to the
slide is regulated to the greatest nicety by the throw of the eccentric or cam.
ratchet wheel and catch is fixed on the end of the eccentric spindle, and motion
given thereto from any moving part of the engine or machine to which it is
applied.
In order that this Invention may be better understood, I herein give reference to
the accompanying Sheet of Drawings, wherein Fig. 1 represents a section of a
tallow cup constructed in accordance with my Invention; and Fig. 2 is an elevation
of same having parts removed, so as to illustrate the construction thereof.
A is the sliding valve, which is caused to reciprocate or move up and down by
ineans of eccentric B, operated by the ratchet wheel and catch C, from any moving
part of the engine or machine to which it is attached.
The "port" or opening b of the valve A is shewn in a position of discharging its
contents into the recess c, which makes its escape down the opening D on to the
part to be lubricated.
It will be seen that when the "port" or opening b is lifted opposite the opening
around the eccentric that the port will be filled by the lubricant from the cup E
and tube F, and when the valve is slided or lowered the port b will discharge its
contents into the recess c. The valve is kept close up to its seat by the spring d.
Fig. 3 shews ny Invention as applied to a tap or cock, whether employed for
steam, water, gas, or other liquids. In this case the valve A is simply employed to
close or open the outlet G.
Having now described the nature and particulars of this my Invention, and
shown how the same may be put into practice, I would have it understood that I
do not confine myself to the exact details of construction and arrangement herein
shewn and described, as the same may be modified without departing from the
main features of my Invention, but what I claim as my Invention is, the sliding
valve A operated in the manner and for the purpose substantially as herein shewn
and described.
In witness whereof, I, the said George Kershaw Ashworth, have hereunto set
my hand and seal, this Sixth day of November, in the year of our Lord