Improvements in Packing, which is adapted to Stuffing Boxes and to Joints which Require to be Kept Steam, Air, or Water Tight.
Year: 1895

page_text: Date of Application, 31st July, 1895
Complete Specification Left, 29th Apr., 1896-Accepted, 30th May, 1896
PROVISIONAL SPECIFICATION.
Improvements in Packing, which is adapted to Stuffing Boxes and
to Joints which Require to be Kept Steam, Air, or Water Tight.
I, JESSE KIRKMAN Steam Packing Manufacturer Park Place Chorley Lanc.
do hereby declare the nature of this invention to be as follows:-
In my improved packing I employ woven fibrous material, preferably proofed,
or covered with india-rubber, or a compound of india-rubber. Between two folds,
or layers of this cloth or material, gauze wire webbing, laminated lead, or other
thin, soft metal is placed, the three folds or layers are then pressed together which
combination is known in the trade as insertion cloth. I coil or wind this insertion
cloth round a mandril, applying to each fold, naptha, or preferably a solution of
india-rubber, or a compound of india-rubber in solution, so that each fold or layer
will adhere to one another, and I continue this process until I have formed a
cylinder of the required dimensions.
Or I may employ a single fold or layer of proofed or coated woven fibrous
material, as above described, on which I place gauze wire webbing, laminated lead,
or other thin soft metal and I coil or wind them round a mandril in the manner
previously described. I thus obtain a cylinder composed of alternate layers of
fibrous material and metal. I then withdraw the mandril from the cylinder in
order to dry it or allow the naptha to evapourate and when in a fit condition, I
again place the said cylinder on a mandril and cut the said cylinder into rings of
the required dimensions. In applying these packing rings to glands or stuffing
boxes, I cut them across and spring them on a spindle or piston rod, but when
intended for joint rings they do not require cutting across.
Dated this 30th day of July 1895.
Improvements in Packing, which is adapted to Stuffing Boxes and
to Joints which Require to be Kept Steam, Air, or Water Tight.
I JESSE KIRKMAN of Chorley in the County of Lancashire Steam
Manufacturer 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 :-
My invention has for its object improvements in packing for use in stuffing
boxes and for joints which require to be kept steam, air and water tight or any
such purpose.
In order to explain my invention clearly I have appended hereunto a sheet of
drawings upon which
Figure 1 is a part sectional elevation showing my improved packing wound
round a mandril.
Figure 2 is a cross section of same.
Figure 3 is a similar view to Figure 1 but showing an alterative method.

page_text: In making my improved packing I employ woven fibrous material b preferably
proofed coated or covered with india rubber or a compound of india rubber.
Between two folds or layers of this cloth or material gauze wire webbing, lami-
nated lead or other thin soft metal c, is placed, these three pieces or strips will
then be pressed together and this combination is known in the trade as insertion
cloth. 1 then coil or wind this insertion cloth round a mandril such as A and
apply to each fold, naptha or preferably a solution of india rubber, or a compound
of india-rubber in solution so that each fold or layer will adhere to one another
and this process is continued until a sufficient thickness is obtained as seen in
Figures 1 and 2 b representing the woven material and c the gauze wire. The
mandril is then withdrawn from the cylinder and when the whole is dry and the
naptha evaporated it is again put upon the mandril and cut into rings of any
required dimensions. In applying these packing rings to glands or stuffing boxes
I cut them across horizontally to allow them to be sprung upon the spindle or
piston rod, but when intended for joint packing they would not require this.
I may employ in some cases only a single fold or layer of proofed or coated
woven fibrous material b on which I place the gauze wire webbing, laminated lead
or other thin soft metal c as shown by Figure 3 and treat this in the same manner
as previously explained..
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
Improvements in packing for use in stuffing boxes, joints, pistons or for any such
purpose consisting of the treatment of the insertion cloth, combining and winding
or coiling the same upon a mandril for the purpose herein described and shewn
upon the accompanying drawings.
Dated this 27th day of April 1896.
JESSE KIRKMAN.