Improved Cock or Faucet.
Year: 1893

page_text: Date of Application, 11th .Dec., 1893-Accepted, 3rd Feb., 1894
Improved Cock or Faucet.
I, GERHARD TERLINDEN, of Oberhausen, in the Kingdom of Prussia, Merchant,.
do hereby declare the nature of my 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 relates to an improved cock or faucet, in which an indiarubber or
caoutchouc plug with annular lip-like flange, renders a stuffing box dispensible,..
the pressure of water when the cock is open forcing said flange against the walls
of the casing in such manner that no water can pass from the boring for the
spindle.
I will now describe my invention with refèrence to the accompanying drawing,..
in which :-
Fig. 1, is a longitudinal section of the cock, when open.
Fig. 2, a similar view showing the cock closed and parts broken off.
Fig. 3, is partly view and partly section of the indiarubber plug.
The lid or head a with.
A is the casing of the cock, with inlet u, and outlet r.
screw-threads for receiving the spindle b, is screwed in the upper part of the
casing A (Fig. 1 & 2). A stem d, is loosely or pivotally connected with the-
spindle b, below the screw threads, and adapted to receive the indiarubber plug e.
In order that the plug cannot work off the stem d, a collar or flange d', ou
the lower end of the stem d, enters a correspondingly-hollowed part, inside the-
plug e.
Further a spherical part e projecting from the bottom of the hollowed or
chambered part of the plug, enters a corresponding depression in the bottom flange
of the stem d; there is however normally a small space between them, and the
part e is only more or less forced into the said depression when the spindle is
screwed down. The object of such arrangement is to make the plug fit more-
firmly and securely against the seat g, through which the water passes from the
inlet u.
The rim or flange s, of the stem d, limits the upward movement of the.
plug e.
The annular lip-like flange f, on the upper part of the plug e, is an essential part.
of this invention. It is destined to engage with the wall of the casing A, and
the profile of the spherical head of the plug e, is also such that it fits tightly against.
the walls of the lid a, when the cock is open.
As shewn in Fig. 3, the form of the lip-like flange f, is such that, when, under-
the pressure of the water, it can extend and press against the casing walls, & thus.
prevent the water passing out of the boring for the spindle.
On opening and closing this cock, which is effected in the usual manner by
screwing & unscrewing the spindle b, by means of the handle c, the form of the
indiarubber plug is changed in so far, that it effects the closing independently of
the flange, whereas when the cock is open, this flange or lip is forced against the
said walls by the upward pressure of the water, & thus prevents any water from.
passing out of the casing.
In consequence of this action, the plug e, with its flange f, takes the forms shewn.
in Fig. 1 & 2, when the cock is open and closed respectively. On account of the
engagement of the flange, with the sloping walls of the casing A (Fig. 2) when
the spindle in screwed down, the plug e is somewhat distended or increased in.
length; to allow for this, a small space is left between the head of the plug and
the rim or flange s. By reason of this distension, the form or shape of the india-
rubber plug would be permanently changed and its elasticity injured; this is

page_text: thereby avoided, that, during the unscrewing of the spindle, the collar d', of the
stem d, inside the plug e, forces the plug into its original shape, this action being
also assisted by the upward pressure of the water.
The special advantage of this new cock is, that any inexperienced person can
easily remove the plug when worn out or inoperative by long use, and insert a new
one whereas the cocks with stuffing boxes at present in use, cannot be so easily
and simply replaced.
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:
17
An improved cock or faucet in which an india-rubber or caoutchouc plug (e)
secured to the spindle (b) by means of a collar (d') of the stem (d), and moving
with same for opening or closing the cock, is provided with an annular lip-like
Hange (), which, when the cock is open, is forced by the pressure of water against
the walls of the casing (A), and prevents any water passing from the boring for the
spindle, thus dispensing with a stuffing box, substantially as described and shewn in
the drawing.
G.
TERLINDEN,
Per W. H. Beck,
115, Cannon Street, London, Agent.
G.
TERLINDEN,
Per W. H. Beck,
115, Cannon Street, London, Agent.