Improvements in Steam Traps.
Year: 1898

page_text: Date of Application, 31st Dac., 1898-Accepted, 4th Feb., 1899
COMPLETE SPECIFICATION
[Communicated from abroad by TIMOTHY JOHN KIRI KY and FREDERICK THEODORE
MUELLER, both of New York, United States of America, Manufacturers.]
Improvements in Steam Traps.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention and in what manner the same 18 to be performed to be
particularly described and ascertained in and by the following statement.--
This invention relates to an improvement in steam traps, the object being to
provide a device of this kind or character which shall be simple in construction,
efficient in use, and economical to manufacture
With these and other ends in view the invention consists in certain novel
features of construction and combination of parts as will be hereinafter fully
described
In the accompanying drawings.
Figure 1 is a view partly in section and partly in elevation of my improved
steam trap, the valve being closed
Figure 2 is a similar view of a modified form thereof, showing the valve open
Referring to the said drawings, A represents a disc or plate provided with
atandards or legs a and formed with an opening 6 leading into the inlet pipe B,
preferably cast or formed integral with the plate A, and threaded as at c to receive
the threaded end of the pipe leading to the trap, said inlet B also serving as a leg
or standard to support said plate A.
On the opposite side of the plate A 18 also cast or formed the outlet pipe C,
the end d thereof being threaded to receive the end of the discharge pipe, said
outlet pipe C also serving as a leg or standard for supporting said plate or
disc A.
In the plate or base A is secured the lower end of the post D, to the upper end
of which is fulcrumed at e a lever E, the latter in turn being connected at one
end by means of a link to one end of the lever F, the opposite end of said lever E
being pivoted to a post G, to the upper end of which 19 secured a hollow ball or
The lever F
sphere H, constructed preferably of thin sheet metal to act as a float
18 fulcrumed at g near one end to the post I, the lower end of the latter being
threaded in, or otherwise secured to the base plate A, the extreme end of said
lever F being connected with the valve rod K on the lower end of which is formed,
or has secured thereto, a valve L adapted to seat or rest upon a valve seat M
threaded into the base plate, and through which is formed an opening m com-
municating with the outlet C The lever F is formed at about the centre of its
length, with a ring, in order to allow of the passage and vertical movement of
the post G carrying the float II
To the base plate A 18 bolted, or otherwise tightly secured, the dome or cover N,
a packing being inserted between the flange o of said dome and the base plate A,
if desired, for the purpose of preventing the leakage or escape of water from the

page_text: trap at such joint The dome N forms a chamber, reservoir or trap for receiving
and containing water entering the same through the inlet B.
It will be understood from the foregoing that as water enters the inlet B it will
continue to 118e in the dome N until the latter becomes about half full, whereupon
the float will rise, and by means of the post G will depress the outer end of
the lever E, which being connected with the lever by means of the link f will
raise the opposite end of said lever F and thereby aise the valve 1od K and
valve L, allowing the water in the trap to escape theiefiom through the passage m
and outlet C
In Figure 2 is shown the trap constructed substantially the same as illustrated in
Figure 1, the same system of leveis being used, but shown in their 1aised position.
in this figure, however, is shown a balance valve 0 seating, at its upper and lower
ends in openings formed in the pipe 1', one end of which is closed and the opposite
end of which is threaded or othei wise secured in an opening p leading into the
outlet pipe C As in the former case, when the dome N becomes partially filled
with water, the float II will se, the several levers assuming the positions as
indicated, and thereby raising the valve O, allowing the water in said dome N to
escape therefrom into the pipe P and out through the outlet pipe C
In some instances, it is possible that it will be more convenient to connect the
inlet pipe to the dome through the top, instead of at the bottom, and therefore it 18
preferred to form an inlet opening R in the top of the dome. In the event that the
inlet pipe is thus threaded into the top of the trap, it will be understood that the
lower inlet B will be plugged or closed up, and in the event that the lower inlet B
18 used, the upper inlet R will be closed
From the foregoing it will be understood that the improved trap is exceedingly
simple in construction, consisting of but few parts, cheaply made, and readily and
easily assembled or put together.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents, I declare that what I claim is:-
1. In a steam trap the combination with the base plate having an inlet and
outlet pipes formed thereon, of a dome secured thereto, a lever, one end of which
carries a float, a second lever linked at one end to the former lever and a valve rod
having a valve on one end and at its opposite end connected with one end of said
second level, said valve adapted to open and close the passage into said outlet pipe,
substantially as described
2 In a steam trap, the combination with the base A formed with the pipes B, C,
of a dome N secured to said base, the lever E carrying the float H, levei F linked
at one end to said lever E, and valve and valve od connected to the opposite end
of said lever F, and adapted to open and close the passage into the said outlet
pipe C, substantially as described
DL: 01 11
DL1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C,
Agents for the Applicant