CERTAIN IMPROVEMENTS. IN. BUCKETS TO BE EMPLOYED IN AIR PUMPS AND OTHER, PUMPS.
Year: 1868

page_text: LETTERS PATENT to William Turner, of Blackburn, in the County
of Lancaster, Engineer, for the Invention of "CERTAIN IMPROVEMENTS.
IN. BUCKETS TO BE EMPLOYED IN AIR PUMPS AND OTHER, PUMPS.".
Scaled the 12th January 1869, and dated the 15th July 1868.
PROVISIONAL SPECIFICATION left by the said William Turner at-
the Office of the Commissioners of Patents, with his Petition, on-
the 15th July 1868.
I, WILLIAM TURNER, of Blackburn, in the County of Lancaster;
Engineer, do hereby declare the nature of the said Invention for
"CERTAIN IMPROVEMENTS IN BUCKETS TO. BE, EMPLOYED IN AIR PUMPS AND
OTHER PUMPS," to be as follows:-
pumps-
My Invention relates to such buckets as are employed for air
and other pumping purposes, and which have metallic packing; and the-
improvements consist in a novel construction of the bucket and packing,.
and in the use of india-rubber for keeping the packing: at a. uniform,
tightness and preventing excessive friction..
The packing consists of an outer metallic ring having an internal
flange supported by the bottom plate of the body of the bucket, the
ring and flange being at one part cut entirely through or split vertically,..
and the flange at several parts as far as the inner surface of the ring..
Upon this flange, between the ring and the body of the bucket, one

page_text: or more rings of india-rubber are placed, upon which a flat metallic
ring bears which acts as a "washer," and in the top plate of the bucket
there are screws, which when turned in one direction act on the flat
ring and press upon the india-rubber, which expands and presses the
outer metallic ring against the cylinder or barrel and maintains a liquid-
tight packing without undue friction. The pressure of the screws is
exerted on the india-rubber after the bucket is placed in the barrel or
cylinder, and if the pressure is properly adjusted at first the clasticity of
the india-rubber causes the outer metallic ring to follow up the wear
and keep the packing tight without further turning the screws.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Turner in the Great Seal Patent Office
on the 13th January 1869:
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TURNER, of Blackburn, in the County of Lancaster, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of July, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Turner, Her special licence
that I, the said William Turner, my executors, administrators, and
assigns, or such others as I, the said William Turner, my executors,
administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "CERTAIN IMPROVEMENTS IN
BUCKETS TO BE EMPLOYED IN AIR PUMPS AND OTHER PUMPS," upon the condition
(amongst others) that I, the said William Turner, my executors or
administrators, by an instrument in writing under my, or their, or
one of their hands and scals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Scal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said William Turner, do hereby
declare the nature of my said Invention, and in what manner the samo
is to be performed, to be particularly described and ascertained in and
by the following statement :-
My Invention relates to such buckets as are employed for air pumps
and other pumping purposes, and which have metallic packing, and the
improvements consist in a novel construction of the bucket and packing,
and in the use of india-rubber for keeping the packing at a uniform
tightness and preventing excessive friction.
The packing consists of an outer metallic ring having an internal
flange supported by the bottom plate of the body of the bucket, the ring
and flange being at one part cut entirely through or split vertically,
and the flange at several parts as far as the inner surface of the ring.
Upon this flange, between the ring and the body of the bucket, one
or more rings of india-rubber are placed, upon which a flat metallic
ring bears which acts as a washer, and on the top plate of the bucket
there are screws, which when turned in one direction act on the flat
ring and press upon the india-rubber, which expands and presses the
outer metallic ring against the cylinder or barrel and maintains a liquid-
tight packing without undue friction. The pressure of the screw is
exerted on the india-rubber after the bucket is placed in the barrel or
cylinder, and if the pressure is properly adjusted at first the elasticity of
the india-rubber causes the outer metallic ring to follow up the wear
and keep the packing tight without frequent turning the screws.
Such being the nature and object of this my said Invention I will
now proceed to describe the same in detail, and in order that the same
may be distinctly understood I have hereunto annexed a Sheet of
Drawings illustrative thereof, and have marked the same with figures
and letters of reference, the same letter referring to the same part in
the various Figures.
Figure 1 is a vertical section of a bucket constructed according to
this Invention; Figure 2 is a plan view of such with the top plate
removed; Figure 3, a plan complete; Figure 4, a detail.
At A is shewn the outer metallic ring on which is internal flange B,
supported by the bottom plate C of the bucket; the ring A and
flange B are as shewn at E, cut or split vertically entirely through,
and the flange B is so cut or split as far as the interior of such ring,
as shewn at F, so as to allow the necessary expansion of the flange and

page_text: outer metallic ring, a piece of metal G being inserted from the inside
of the outer ring, so as to cross the slit and prevent the passage or
escape of air or fluid (see Figure I)'; H, a ring or washer of india-rubber;
J, a ring on which the ends of the set screws K bear, these set screws
being passed through the top plate L, which is "tapped." It will
be evident that on a bucket, constructed as herein described and shewn
in the Drawings, being placed in the barrel or cylinder of a pump, and
pressure exerted on the ring J by means of the set screws K, such ring
will exert pressuro on the india-rubber washer, the latter will expand
and force closely to the interior of the barrel or cylinder of the pump
the outer metallic ring A, and thus form an air or fluid tight packing,
the india-rubber washer H expanding the outer metallic ring A as wear
takes place. A number of washers M are placed on the set screws and
one from each set screw is removed, when the outer metallic ring is
so worn that additional expansion is required.
Having thus fully described the nature and particulars of this my
said Invention, together with the manner in which the same is to be or
may be performed or carried into practical effect, I would have it
distinctly understood that I claim as my Invention,―
Firstly. The outer metallic ring with interior flange when cut or
split, as and for the purpose as herein described and shewn in the
Drawings.
Secondly. The application and use of the india-rubber washer, together
with the ring J and pressure adjusting set screws, as and for the purposes
herein described and shewn in the Drawings, or any mere modification.
of the same.
In witness whereof, I, the said William Turner, have hereunto set
my hand and scal, this Ninth day of January, in the year of our
Lord One thousand eight hundred and sixty-nine.
Witness,
RICHARD DAVID FOXCROFT,
Clerk,
Blackburn.
WILLIAM TURNER. (L.s.)