Year: 1892

page_text: Date of Application, 24th Oct., 1892-Accepted, 26th Nov., 1892
one appara
H ATČ༥༦.
In all of these drawings A is the feed pipe through which the water is supplied
to the filter.
B is the feed pipe through which the water is delivered to the boiler, or other
purpose.
C is the valve which regulates the delivery of the water, and which is made a fit
in the valve box D, which may be packed at the top with a gland in the ordinary
manner; or otherwise.
E and F are the two boxes containing the filtering material.
And G₁ Ge, and H₁, H., are the passages cut in the central valve by which the
feed water is controlled.
In Figures 3 and 4, J is a byepass which can be used, if preferred, so that both
filters can be out of use at the same time.
The mode of action of this apparatus is as follows.
The valve C being in the position shewn in Fig. 2, the feed water, as it comes
from the pipe A, is carried into the chamber E through the opening G₁, through
the filtering material therein, and out through the opening H, whence it escapes
into the pipe B.
When, owing to the filtering material in the box E becoming foul, or for
other reason, it is desired to divert the the feed water through the box F, the
valve C is turned th of a circle contrary to the direction of the hands of a watch,
when G, H, are closed and G, H, are opened, and the water passed through the
box F. which may be similar to the box E, or instead of which a byepass with no
filtering material therein may be substituted. In either case, the action and position
of the valve is identical.
In order to permit the direction of the current of the feed water being changed
without stopping its continuity; as shewn in Figures 2 and 4, I make the
openings G, G, H, H. of twice, or more, the area of the feed pipe A. Thus, when
either of the valves G₁, G, H, H, are half closed, there is room for the feed water
to pass through without checking its velocity materially, and the spaces between
the openings G, G., H₁, H, being of half the size of the openings, it follows that
when one or all of these openings are more than half closed to the side that a
small portion of the aperture is open to the side F of the apparatus and that as the
valve C is farther closed to the side E, so will it open to the side F.

page_text: Thus there is never less area of ports of the valves than the area of the pipe A
open to the passage of the fluid.
Drawings 3 and 4 shew a similar arrangement with a byepass, which may be
above or below the apertures G and H in the valve C.
In this case the same action takes place, but on half closing the apertures G, G₂
or H, H₂, the byepass commences to open, and when the valve is at its middle
position, as shown in Figure 4, the byepass is open throughout; while both filter
chambers are closed from the feed water or fluid.
It will thus be seen that there are three methods in which this invention may be
used.
1st. With two filters only.
2nd. With one filter and a byepass.
3rd. With two filters and a byepass.
The valve C is lubricated and kept tight by the fatty matters held in the feed
water.
.
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 as follows-
1. This method of causing one valve in connection with filtering apparatus to
perform the functions of a larger number.
2. The means whereby the current of water may be diverted from one filter to
another or other passage; without causing the cessation of the continuity of the
current of fluid.
3. The improved apparatus for effecting these objects, taken as a whole,
substantially as herein described.
Dated this 24th day of October 1892.
WALTER BASSETT BASSET,
Bracken House, Walton-on-Thames.