Year: 1888

page_text: I JAMES HENRY LYNDE of 17 Cooper Street Manchester in the County of
Lancaster, Civil Engineer do hereby declare the nature of this Invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :—
My invention relates to improvements in automatic fire extinguishing sprinklers of
the valve type and the object of my improvements is to construct such sprinklers of a
strong pattern not liable to damage.
My improvements consist chiefly in so arranging the compound levers employed to
retain the valve in close contact with the water orifice that they are supported by and
within an adjustable cover which shields and guards them from injury.
And in order that my Invention may be fully understood and readily carried into
effect I will describe the accompanying Sheet of Drawings reference being had to the
figures and letters marked thereon.
Figure 1 is a vertical section of a sprinkler embodying my improvements Fig. 2 is
a sectional detail view of the compound levers and Fig. 3 is a sectional elevation of
the lower portion of the sprinkler showing a slight modification.
I make the body of the sprinkler a with a valve seating a¹ at its lower end and a
screw thread a on its outer surface in addition to the ordinary thread a³ for attach-
ment to the water pipe. Upon this thread a' I screw a cover which has an
inwardly projecting lip or flange 61 formed around its lower end. The valve and
deflector c is provided with a stem d to the upper end of which is fixed a support and
guide e which when the valve opens will allow the stem d to fall to its required
position and there maintain it. The valve c is normally held in close contact with the
valve seating a¹ by means of two compound levers fand 9 respectively which are
preferably constructed of spring brass nickel plated and of the form shown in Fig. 2.
One end of the upper lever frests upon the lip 61 of the cover and the other end
rests upon the lower lever g. One end of the lower lever g is supported on the lip b₁
and the other end is soldered by sensitive solder to the underside of the upper lever f.
It is obvious that the valve c can be regulated at any time by adjusting the
position of the cover 6 on the threaded part of the body a.

page_text: In Fig. 3 the levers fg are shown resting upon pieces h of ebonite or other non-
conducting material supported by the lip and in addition to these a washer h¹ of
non-conducting material may be interposed between the upper lever and the under-
side of the deflector c. In this view the lower lever g is bent so that the upper lever
does not lie in contact with the lower throughout its whole length as in Fig. 1 but
only near each end as shown.
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.-A valve sprinkler having an adjustable cover surrounding protecting and
supporting compound levers which are soldered together and hold the valve to its
seating.
2. The combination with the valve c, of the adjustable cover 6 having a lip bor
equivalent and the compound levers fg substantially as and for the purposes described
and as illustrated by the Drawings annexed.
DL: 1711 1
T
T
1000
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicant.