Improvements in or connected with Means or Apparatus for Lubricating and for Packing Stuffing Boxes.
Year: 1892

page_text: Date of Application, 5th Nov., 1892
Complete Specification Left, 31st July, 1893-Accepted, 2nd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Means or Apparatus for
Lubricating and for Packing Stuffing Boxes.
I, ROBERT ARCHER, of Ossett, in the County of York, Engineer, do hereby
declare the nature of this invention to be as follows:-
The object of my invention is to lubricate piston and other rods (hereafter
termed "piston rods") in a more efficient manner than heretofore, and also to
construct and arrange the packing of stuffing boxes in such a manner that the said
packing is rendered elastic, whilst at the same time it is kept comparatively cool.
According to my invention, and for the purpose of effectually lubricating piston
rode, I. bind or otherwise place a coil of hemp or other packing around the piston
rod. I place a cover on each side of the said packing, one of which covers is
provided with a cylindrical case extending around the packing and having a screw
thread on its outer surface, and the other cover is provided. with a cylindrical case
having an internal screw thread. which fits onto the thread of the first cylindrical
case. A slot of any convenient length or breadth is cut in these cylindrical cases
in such a manner that the lubricant may be fed onto the packing. By screwing
these covers together,, the packing between them may be compressed to any
required extent, and the lubricant when fed to the packing, through the slot before
referred to, is retained about the packing and not allowed to escape as is now
the case..
I may employ with the above described. lubricating packing, ordinary packing on
either side of same, but as the packing att present in use is liable to become hard.
with wear, I prefer to employ the packing hereinafter described.
This packing is or may be composed of a-tube or tubes of hemp, asbestos, or of
any other suitable material, and I twist or bind the same around. the piston. rod
within the stuffing box; or the said packing may be applied in any other suitable
way,, and either in one or more sections. This tubular packing is connected to a
pump or chamber containing some fluid under compression, which fluid may be
admitted to or cut off from the tubular packing when desired by suitable cocks or
other means. A.
1.gauge may be employed to indicate the pressure, and any suitable
fluid may be supplied to suit requirements.
It is obvious that the packing will be kept tightly against the piston rod in
proportion to the pressure maintained, and if the fluid employed be a lubricant, and
the packing be of a slightly porous nature, the said packing may be used without
the lubricating packing described in the first part of this Specification.
The tubular packing may be connected to the pressure pump or pressure chamber
in any suitable way,, and pressure valves may be employed to keep a constant
pressure in the tube, thus rendering the stuffing box perfectly steam tight.
Any number of stuffing boxes, fitted with the above described tubular packing,.
may be fed from one pump or chamber, and cylinders or other parts may be
lubricated from these tubular packings.
By the employment of packing constructed according to my invention, various
kinds of piston rods may be employed, as the elastic nature of the packing will
cause it to readily fit oval, fluted, or other sections of rods, and by reason of the
continuous flow of fluid through the tubular packing, the same can be kept perfectly
cool by the employment of a cooling fluid.
Dated this 5th day of November 1892.

page_text: COMPLETE SPECIFICATION.
Improvements in or connected with Means or Apparatus for
Lubricating and for Packing Stuffing Boxes.
1, ROBERT ARCHER, of Ossett, in the County of York, 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:—
Hitherto in the lubrication of piston and other rods, the oil fed to the packing
usually descends to the lower part of the gland, and therefore becomes wasted
without effecting the lubrication of the packing and the rod working therein.
The object of my invention is, to provide apparatus whereby piston and other
rods (hereafter termed piston rods) may be lubricated in an efficient manner; and
in order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawings, in which similar letters 'refer to
like parts in all the figures.
Fig. 1 is a longitudinal section, Fig. 2 a transverse section, and Fig. 3′ a
perspective view shewing apparatus constructed according to my invention.'
Figs. 4 and 5 shew sections of stuffing boxes with my invention applied thereto.
According to my invention, and for the purpose of effectually lubricating piston
rods, I bind or otherwise place a coil of hemp or other packing A around 'the'
piston rod B, and on each side of the said packing A 1 place a cover, C, D. The
cover C is provided with a cylindrical case C¹ extending around the packing A and
having a screw-thread on its outer surface; and the other cover D is provided with
a cylindrical case D' having an internal screw thread which fits onto the thread of
the first cylindrical case C¹.
A slot E of any convenient length or breadth is cut in these cylindrical
cases C¹ D¹ in such a manner that the lubricant may be fed onto the packing A..
By screwing the covers C D together, the packing A is held in the required
position upon the rod B, and the lubricant, when fed to the packing A through the
slot E above referred to, is retained about such packing and not allowed to escape,
as is the case with stuffing boxes at present in use.
The above described arrangement is placed within the gland G as shewn at
Figs. 4 and 5, and oil or other lubricant is fed thereto by means of the oil cup or
lubricator H which is mounted on the said gland G.
It will thus be seen that the covers C D with their cases C¹ D¹, when screwed
together over the packing A, form a box or receptacle for the lubricant fed therein,
consequently the packing A is kept saturated with oil, and the piston rod B is thus
efficiently lubricated.
Any suitable packing K may be employed on either side of the covers CD as
shewn at Figs. 4 and 5, and by the employment of apparatus constructed according
to my invention, piston rods are efficiently lubricated, whilst at the same time
"blowing" and the consequent waste of steam is entirely obviated.
11
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is:
1. The covers C and D having cylindrical cases C' and D' whereby a packing is
held round a piston rod, and the said packing kept saturated in oil, substantially as
Bet forth.
2. The combination of the packing A, cover C, case C³, cover D, case D' and
slot E, substantially as and for the purposes set forth.
3. The general arrangement, construction, and combination of the various parts

page_text: forming the means or apparatus for lubricating and packing stuffing boxes,
substantially as herein set forth, together with any mere modification or modifica-
tions thereof.
Dated this 21st day of Iul., 1902
BREWER & SON,
London and Leeds, Agents for Applicant.