Improvements in Pistons and Pump Buckets.
Year: 1891

page_text: Date of Application, 26th Sept., 1891
Complete Specification Left, 23rd June, 1892-Accepted, 6th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Pistons and Pump Buckets.
We, JOHN HARRISON, WILLIAM LOYND, and RICHARD HENRY CLAYTON,
all of the firm of Clayton, Goodfellow and Company, of Atlas Iron Works,
Grimshaw Park Road, Blackburn in the County of Lancaster, Engineers,
Millwrights, and Iron Founders, do hereby declare the nature of our said invention
to be as follows:
This invention relates to improvements in pistons and buckets and consists in
means for operating each piston or bucket ring by means of a separate spiral or
coiled spring so that they will act independently of each other. This we effect by
constructing the said piston or bucket rings with internal inclined or other surfaces,
with or without lips or flanges, and divide or separate the same by a metallic
ring. In the space between the bottom of the piston or bucket and the dividing
ring and in the space between the dividing ring and the cover we dispose a spiral
or coiled spring of any suitable section. The spiral or coiled springs may be made
angular in form or otherwise to fit the internal surface of the rings, by which the
vertical and lateral movements will be effected with a minimum of friction.
applying our invention to pump buckets the wearing parts can be constructed of
or cased with brass or other suitable metal.
In
An important feature of this invention is that when the piston or bucket rings
are provided with inclined internal surfaces the spiral or coiled springs and the
rings can be placed in position and expanded by simply screwing down the cover
or junk ring with the ordinary bolts, thereby dispensing with the old and
objectionable system of compressing the same by a screw and bolt before they can
be placed in the cylinder or pump barrel.
Dated the 25th September 1891.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in Pistons and Pump Buckets.
We, JOHN HARRISON, WILLIAM LOYND, and RICHARD HENRY CLAYTON,
all of the firm of Clayton, Goodfellow, and Company, of Atlas Iron Works,
Grimshaw Park Road, Blackburn in the County of Lancaster, Engineers,
Millwrights, and Iron Founders, do hereby declare the nature of our said invention
and 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 improvements in pistons and pump buckets and consists in
means for operating each piston or bucket ring by means of a separate spiral or
coiled spring so that they will act independently of each other. This we effect by
constructing the said piston or bucket rings with internal inclined or other
surfaces, with or without lips or flanges, and divide or separate the same by a
metallic ring. In the space between the bottom of the piston or bucket and
the dividing ring and in the space between the dividing ring and the cover we
dispose a spiral or coiled spring of any suitable section. The spiral or coiled
springs may be made angular in form or otherwise to fit the internal surface of the
rings, by which the vertical and lateral movements will be effected with a minimum
of friction. In applying our invention to pump buckets the wearing parts may
be constructed of or cased with brass or other suitable metal.

page_text: An important feature of this invention is that when the piston or bucket rings
are provided with inclined internal surfaces the spiral or coiled springs and the
rings can be placed in position and expanded by simply screwing down the cover
or junk ring with the ordinary bolts, thereby dispensing with the old and objection-
able system of compressing the same by a screw and bolt before they can be
placed in the cylinder or pump barrel.
Fig. 1 is a sectional elevation of a piston or pump bucket fitted with our
improvements.
Fig. 2 is a plan with cover or junk ring removed.
Fig. 3 is an outside view of our improved spiral spring for pistons and pump
buckets, and
Fig. 4 is an outside view of another modification of our improved spring.
A is the block or body of a piston or pump bucket; B the cover or junk ring;
C the centre opening for the piston or bucket rod, and D the piston or bucket
rings. The latter are disposed between the flange E of the piston or bucket A
and the cover B, and are separated from each other by the metallic ring G to
allow of each being operated independently by a separate spiral or coiled spring H.
The piston or bucket rings D are constructed with the internal inclined surfaces I,
against which operate the spiral or coiled springs H. The springs H may be
constructed of round or other sections of metal as shown in Figs. 1, 3, and 4.
The springs H are made angular in form to fit the internal inclined surfaces I
of the rings D, by which the vertical and lateral movements will be effected
with a minimum of friction. Each joint of the rings D is provided with the
metallic pieces K to form a tight joint.
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 :-
In combination with pistons and pump buckets the use of a spiral or coiled
spring to operate independently on each piston or bucket ring, substantially as
Tescribed.
Dated the 1st June 1892.
EDMUND CHADWICK,
Agent.