Improvements in Sprinkler Heads for Automatic Fire Extinguishers.
Year: 1897

page_text: Date of Application, 12th Jan., 1897-Accepted, 13th Feb., 1897
UOMI LEID SPECIFICATION.
Improvements in Sprinkler Heads for Automatic Fire
Extinguishers.
I, VALENTINE LAPHAM, of No. 300 Sixtieth Street,, in the City of Chicago,
County of Cook and State of Illinois, United States of America, Manufacturer, 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:-
My invention relates to sprinkler heads for automatic fire extinguisher'systems,
and is clearly shown in the drawing in which
Fig. 1 is a perspective view of a head embodying my invention; Fig. 2, an axial
section thereof;
Fig. 3, an end elevation of the strut;
Fig. 4, a perspective of the parts before assembling;
Fig. 5, a similar view of a modified form ; and
Fig. 6, a perspective of a link embodying features of my invention.
A represents the nozzle of the distributing pipe; B the cap for closing it;
C, the deflector; D, the yoke and E, the strut. The nozzle and yoke are preferably
cast integral and a flange F projects from the nozzle to afford bearing for spring G
against the inside side of the cap, (or lug b projecting therefrom) which spring
tends to throw the cap from its seat. Preferably coiled springs are used, and to
prevent displacement, the flange has sockets in which they fit. Customary
packing B is placed between cap and its seat and preferably has projecting
ears 6' corresponding with lugs b.
•
The strut comprises three parts shown in Figs. 4 and 5. The two parts I are
similar and each has a notch at one of its ends, forming a shoulder i and two
tongues. These notches are somewhat wider than the third part or rocker I'
which is bent twice in opposite directions at right angles so that the ends of the
rocker are in parallel planes and united by an intermediate portion or shoulder ³.
The length of this shoulder is such that the distance between the planes of the
rear faces of the offset ends is substantially equal to the aggregate thickness of
the two parts I when placed together, so that when the parts are assembled the
offset ends of the rocker bear flat against the outer faces of the parts 1. The
parts I are placed together with their tongues in opposite directions, and over-
lapping. Their shoulders i are opposed to each other and bear against opposite
sides of the shoulder of the rocker. The meeting faces of all three parts are
soldered together. Pressure is applied to the strut by clamping screw K having
a pink entering a block L bearing against the end of the strut, the other end
bearing upon the cap.
So long as the ends of the rocker are held against the faces of the parts 1.the
strut cannot be separated by endwise pressure, but when the solder is fused the
rocker turns and permits the parts I to pass each other and the cap B to open.
The strut in Fig. 4 has strengthening ribs or corrugations 3 on the parts I which
are received by corresponding corrugations 4. Each of the parts I has preferably
strengthening flanges 5. The modified strut in Fig. 5 has no ribs or flanges.
Fig. 6 shows the invention applied to a
The parts I correspond to parts I, and I
beyond each other and have cross pieces i
which the link is hooked,
link for resisting the tensile strains.
is the rocker. The tongues extend
affording attachment to the parts over

page_text: 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:
1. A. sprinkler head strut substantially as herein shown and described.
2. A sprinkler head strut comprising a rocker having an offset end and two
parts overlapping each other and bearing in opposite directions against the rocker,
the offset end of the rocker being soldered to one of said parts.
3. A sprinkler head strut comprising a rocker having offset ends and two parts
bearing in opposite directions against the intermediate portion of the rocker, one
of said parts being soldered against the inner face of each of the offset ends of the
rocker, and both of said parts being cut away to permit the offset ends of the rocker
to pass.
4. A spinkler head strut comprising two overlapping parts cut away to form
opposing shoulders, and a rocker having an offset whose ends are secured against
the outer faces of said overlapping parts, the intermediate portion of the rocker
being arranged between the shoulders of the overlapping parts.
D
1.
1
• T
1007
HASELTINE, LAKE & Co,
45 Southampton Buildings, London, W.C., Agents for the Applicant.