Improvements in Stuffing-boxes or Glands for Preventing the Escape of Steam or other Fluid..
Year: 1889

page_text: Date of Application, 3rd Oct., 1889
Complete Specification Left, 31st July, 1890-Accepted, 20th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in Stuffing-boxes or Glands for Preventing the Escape
of Steam or other Fluid..
I, WILLIAM HARTCLIFFE, of St. Simon Street Brass and Copper Works, Salford in
the County of Lancaster Brassfounder and Engineer, do hereby declare the nature of
this invention to be as follows:-
The object of my invention is to construct a stuffing box or gland in such a manner
that the pressure of the steam or other fluid shall have a tendency to render the stuffing
box more effective and also to reduce the friction between the metallic packing ring
or thimble and the nut.
In performing my invention I make a conical recess in the body of the stuffing box
or gland to receive the packing and I prefer to use an annular packing of some elastic
or yielding substance of circular section which fits the rod or tube which enters or
passes through the stuffing box or gland. I make a thimble of metal slightly dished on
the surface which bears against the elastic packing and in order to reduce friction it
is tapered or cut away so as to present a small surface to the nut which tightens the
thimble in its place. This prevents the thimble from turning and distorting the elastic
packing when the nut is tightened.
In place of the thimble or in combination therewith I may use a small spiral
or other spring.
When an india rubber ring of circular section is used for packing a steam boiler
water gauge only slight pressure need be applied by the nut.
Dated this 2nd day of Antalian 1880
H. B. BARLOW,
Agent.
COMPLETE SPECIFICATION.
Improvements in Stuffing-boxes or Glands for Preventing the Escape
of Steam or other Fluid.
I, WILLIAM HARTCLIFFE, of St. Simon Street Brass and Copper Works, Salford, in
the County of Lancaster, Brassfounder and Engineer, 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 object of my invention is to construct a stuffing box or gland in such a manner
that the pressure of the steam or other fluid shall have a tendency to render the
stuffing box more effective and also to reduce the friction between the metallic packing
ring or thimble and the nut.
In performing my invention I make a conical recess in the body of the stuffing box
or gland to receive the packing and I prefer to use an annular packing of some elastic
or. yielding substance of circular section which fits the rod or tube which enters or
passes through the stuffing box or gland. I make a thimble of metal slightly dished
on the surface which bears against the elastic packing and in order to reduce friction
it is tapered or cut away so as to present a small surface to the nut which tightens the
thimble in its place. This prevents the thimble from turning and distorting the elastic
packing when the nut is tightened.
In place of the thimble or in combination therewith I may use a small spiral or other
spring, thereby making the adjustment of the packing automatic.
When an india rubber ring of circular section is used for packing a steam boiler
water gauge only slight pressure need be applied by the nut.
And in order that my invention may be fully understood and readily carried into
Price 6d l

page_text: effect I will describe the accompanying sheet of drawings reference being had to the
figures and letters marked thereon.
Figures 1 and 2 are transverse vertical sections of alternative forms of stuffing
boxes or glands made according to my invention and Figure 3 is an elevation of a
water gauge fitted with my improved glands.
In these views-u designates the body of the stuffing box or gland formed with a
conical recess to receive the india rubber or other suitable packing ring which fits
closely around the gauge glass and which is compressed by means of the screwed
cap or nut d and thimble e, see Fig. 1, or spiral spring, see Fig. 2.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The combination with the body a. formed with an internal conical recess, and the
screwed cap or nut d, of the packing ring band the thimble e or spring for both
substantially as and for the purposes herein set forth.
Dated this 30th day of July 1890.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.