Improvements in Cocks.
Year: 1899

page_text: Date of Application, 19th Aug., 1899-Accepted, 23rd Sept., 1899
COMPLETE SPECIFICATION.
Improvements in Cocks.
I, WILLIAM HENRY GREATOREX, of 11, Forthbridge Road, Clapham Common,
in the County of Surrey, Brassfinisher, 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 by the use of an auxiliary gland, and indepen-
dantly of actuating the primary gland, to bring direct pressure upon the packing
contained in the vertical grooves running at right angles to the waterway of such
cocks, as depend for their tightness-on the introduction of packing. The said
vertical grooves can by this device be replenished with packing although the cock
may be under pressure.
With reference to the accompanying sheet of drawings, in which
Fig. 1 is an elevation of a cock shewing the auxiliary gland constructed accord-
ing to my invention fitted to the top of the body e with an ordinary packing
gland n at the bottom of said body.
Fig. 2 is a plan of the same.
Fig. 3 is a horizontal section through A B.
Fig. 4 is a vertical section through CD with the auxiliary gland constructed
according to my invention fitted to both top and bottom of body e.
Fig. 5 is a part vertical section through C D shewing method of applying
the device-to the plain flanged gland in use in the larger sized cocks.
Fig. 6 is an elevation of the said plain gland fitted with the auxiliary gland
constructed according to my invention.
The said auxiliary gland Figures 1, 4, 5, 6 consists of a stout flat washer c
having vertical projections marked c¹ depending from its under side--the bore of said
washer c is a sliding fit on the screwed shank a' said shank is cast in one piece
with the primary gland a Figures 1, 4, 5, 6.
The vertical passages marked c¹¹ cut in the primary gland a allow the vertical
projections marked c¹ to pass into the interior of the packing space Figures 4, 5.
The said passages marked c are partly exposed, Fig. 1, so causing a section
of the projections marked e¹ to stand out beyond the circumference of the primary
gland a channels are cut in the wall of the packing space gl on a vertical line
with the grooves marked g to recieve said exposed parts of projections marked c¹
by this arrangement the projections marked c¹ are held in the desired position,
directly over the vertical grooves marked g at the same time the auxiliary
gland can only take a vertical direction when actuated by the pressure nut 6.
The plain gland shewn in Figures 5, 6, being in an arbitrary position, so
ensuring the grooves marked g and channels marked being in their
correct relative position, the above arrangement may be dispensed with
when said plain gland a, Figures 5, 6 is in use. The beforementioned
pressure nut 6 Figures 1, 4, 5, 6 engages the thread on the screwed
shank, and beds on the surface of the flat washer C of the
auxiliary gland, and when screwed down on said gland c c forces the vertical

page_text: projections marked c¹ through the passages marked c¹¹ direct on the packing in
the vertical grooves marked g, Figures 4, 5. The plan of the projections marked c¹
and passages marked c¹¹ coincide with the plan of the vertical grooves marked y
see Fig. 3.
To use the device
Pack the cock in the usual manner in screwing down gland a let the exposed
portions of passages marked c Fig. 1 stand opposite the channels in wall of
packing space g¹ pass the auxiliary gland over shank a¹ entering the projections
marked into the passages marked c" screw down pressure nut 6 engaging
screwed shank a¹ and so actuate the auxiliary gland c c¹ until the said projections
are forced home on the packing in the grooves marked g Figures 4, 5.
When by use the cock commences to leak through the waterway screw down
pressure nut b until said leakage is stopped.
If the leakage is of a serious nature remove the pressure nut and auxiliary
gland-ram fresh packing through passages marked into the grooves g replace
gland c c and nut 6 and screw down as before explained.
If the cock is under pressure shut off while repacking-by plug d.
The device can be fitted to either top or bottom of the barrel, or as in Fig. 4
to both top and bottom of the barrel c if desirable.
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
1. In combination with such cocks as depend upon the introduction of packing
for their tightness. The device for an auxiliary gland constructed according to
my invention for the purposes herein specified substantially as described and
represented in the drawings hereunto annexed.
2. The provision of channels marked c¹ for enabling the vertical grooves
marked g to be replenished with packing while "if necessary" the cock is under
pressure said channels also allow the projections marked c¹ to pass into the pack-
ing chamber, for the purpose herein specified, substantially as described and set
forth in the accompanying sheet of drawings.
3. The screwed shank a attached to the gland a said shank engaging the pres-
sure nut 6 for actuating the auxiliary gland c c for the purpose herein specified,
substantially as described with reference to the drawings hereunto annexed.
Dated this 19th day of August 1899.
W. F. GREATOREX.