IMPROVE- MENTS IN COCKS AND TAPS
Year: 1885

page_text: I ARTHUR COOE HATTATT of Amherst Villa, Castle Road, Newport, Isle of
Wight Gentleman do hereby declare the nature of my invention for "IMPROVE-
MENTS IN COCKS AND TAPS" to be as follows:-
This Invention has for its object improvements in cocks and taps.
Great difficulty is experienced in keeping cocks and taps tight when exposed to
pressure of hot water or steam; and even in the case of cocks and taps to be
exposed only to cold water accurate fitting is required and the plug of the cock or
tap sometimes jams and becomes set fast.
To avoid these difficulties I bush or line the shell of the cock or tap with
vulcanized fibre. I cut from a sheet of vulcanized fibre a piece of suitable size and
shape to line the shell and I form apertures in it for the water ways or passages
I bend the piece to a conical form and having dried it I force it into its place in
the shell of the cock or tap. This vulcanized fibre bushing swells as soon as it
comes in contact with moisture and so becomes firmly set in its place.
As an additional security I in some cases insert pins of vulcanized fibre through
the bushing and through the metal shell of the cock; the pins should be taper and
inserted from the inside so that in case of shrinkage when the cock or tap becomes
dry they may not fall out.
Or to prevent the possibility of the vulcanized fibre bush turning in the shell I
sometimes form a recess in the shell around the water ways or otherwise into
which the bushing of vulcanized fibre swells and so becomes securely held.
The plug of the cock or tap is of metal as heretofore the only alteration being
that the edges of the water ways should be bevilled so that the bushing may not
be cut.
In the case of cocks and taps exposed to a high pressure I provide an auxiliary
water way so that in turning the plug in the shell first the main water way is
closed and then immediately afterwards the auxiliary way-thus concussion in closing
the cock or tap is avoided.

page_text: I, ARTHUR COOE HATTATT of Amherst Villa, Castle Road, Newport, Isle of
Wight, Gentleman 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 :-
This invention has for its object improvements in cocks and taps.
Great difficulty is experienced in keeping cocks and taps tight when exposed to
pressure of hot water or steam, and even in the case of cocks and taps to be exposed
only to cold water accurate fitting is required and the plug of the cock or tap
sometimes jams and becomes set fast.
To avoid these difficulties I bush or line the shell of the cock or tap with 1
vulcanised fibre. I cut from a sheet of vulcanised fibre a piece of suitable size and
shape to line the shell and I form apertures in it for the water ways or passages.
I bend the piece to a conical form and having dried it I force it into its place in
the shell of the cock or tap. This vulcanised fibre bushing swells as soon as it comes
in contact with moisture and so becomes firmly set in its place.
As an additional security I in some cases insert pius of vulcanised fibre through
the bushing and through the metal shell of the cock; the pins should be taper, and
inserted from the inside so that in case of shrinkage when the cock or tap becomes
dry they may not fall out.
Or to prevent the possibility of the vulcanised fibre bush turning in the shell I
sometimes form a recess or recesses in the shell into which the bushing of vulcanised
fibre swells and so becomes securely held.
The plug of the cock or tap is as heretofore the only alteration being that the
edges of the water ways should be bevelled so that the bushing may not be cut.
In order that my said invention may be most fully understood and readily
carried into effect I will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of a cock or tap constructed in accordance with my
invention externally as here seen it presents no feature of novelty.
Figure 2 is a vertical section on the line 1-1 in Figure 1.
Figure 3 is an horizontal section on the line 2-2 in Figure 1.
Figure 4 is an horizontal section on the line 3. 3. in Figure 1 and
Figures 5 shew a piece of sheet vulcanised fibre cut to the proper shape to form
the bushing or lining for the shell of the cock or tap.
The shell a of the cock or tap is bored out about one sixteenth of an inch larger
in diameter than the dimensions of the plug 6 demand. It has grooves cut in it
at a¹ a between the water ways and at a² a² it is perforated with taper holes
larger on the inner side.
The plug bis of the ordinary form except that the edges at the mouth of the
water way are bevelled or rounded at b¹.

page_text: The bush c is of vulcanised fibre and it should be of the best quality. It is cut
from a sheet to the form shown by Figures 5 and is lapped around a cone corre-
sponding in form with the plug b. c is the entrance water way in the bush, it is
larger than the corresponding passages in the shell and plug otherwise the water
might force it away from the shell and into the passage of the plug. c is the exit
water way in the bush. care holes in the bush corresponding to the holes a² in
the shell.
The bush when thoroughly dry is forced into its place in the shell and little
conical pins of vulcanised fibre are inserted from the inside into the holes a² and a³.
The shell is then finished off at the ends, the plug is inserted and the cock or tap
is complete.
When the bushing becomes moistened in use the vulcanised fibre swells into the
grooves or recesses a¹ a¹ in the shell and this securely fixes the bush in its place.
These grooves or recesses should be slightly wider than the apertures in the plug.
The pins inserted into the holes a² c³ effect the same object and may be used as an
additional security-it is not always necessary however to employ both grooves
and pins and if one only be used I prefer the grooves.
The bushing can be made without a join but to cut it from a sheet I usually
prefer and this is more convenient. Cocks and taps which have become worn may
be repaired by bushing in accordance with my invention which is also applicable to
gland cocks.
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.) The combination of the shell a plug b and vulcanised fibre bushing c
substantially as described.
(2.) The combination with a cock or tap of a bush formed from sheet vulcanised
fibre substantially as described.
(3.) The grooves a¹ within the shell a serving to retain the bushing c in place
substantially as described.
(4.) The method of securing a bushing of vulcanised fibre within the shell of
a cock or tap consisting in the employment of pins of vulcanised tibre inserted from
within into holes in the bush and in the shell substantially as described.
Dated this 16th day of January 1886.
CARPMAEL & Co.,
Agents for the Applicant.