Improvements in Return-bends for Steam-radiators.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Return-bends for Steam-radiators.
I, HENRY EHRMAN STAGER, residing at Number 395, East Water Street, in
the City and County of Milwaukee, State of Wisconsin, United States of
America, Engineer, 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 return-bends for steam-radiators; and it consists in
certain peculiarities of construction and combination of parts in connection with the
return-bends and valves of said radiators, as will be hereinafter described, with
reference to the accompanying drawings, and subsequently claimed.
In the drawings,
Figure 1 represents a vertical longitudinal section taken on line 1-1 of the
succeeding figure to illustrate a steam-radiator return-bend and valve constructed
according to iny invention, and
Figure 2, a vertical transverse section on line 2-2 of the preceding figure.
Referring by letter to the drawings, A. represents a shell provided with screw-
threaded extensions BC at right angles to each other on opposite sides of a
transverse partition D, and screw-threaded or otherwise detachably secured to the
outer end of the shell is a cap E, having a projection for engagement with a
wrench.
The partition D is provided with an opening surrounded by a flange c, and
the latter forms a seat for a valve F, that has an arm & pivotally connected to a
bracket G, this bracket being detachably connected to the interior of the shell-
section C by means of a screw e, as best illustrated in Fig. 1.
As shown in the drawings, the valve F is held against a collar g on an irregular-
shaped rod H by means of a set-nut ; but in practice said valve and rod may be
otherwise connected, although it is essential that the latter extend in opposite
directions from the former.
A float J of soapstone or other suitable material is attached to the inner or
irregular-shaped portion of the valve-rod H, and is thus brought close to the
bottom of the shell A, while on the outer or straight portion of said rod I arrange
a counter-weight K, set-nuts i being employed to hold said weight in the position
to which it may be adjusted.
The shell A above described forms the return-bend for a steam-radiator, the
outlet of the latter being coupled to the shell-extension B, and the return-pipe for
said radiator likewise connected to the shell-extension C. Now if there is any
water or steam pressure back of the partition D in the shell, the float J will rise
to overbalance the counter-weight K and open the valve F, the latter swinging on
its pivot-connection with the bracket G; but in case of pressure in the return-pipe
said valve will be held tight against its seat to prevent flooding of said radiator.
Because of the susceptibility of the float-controlled valve the radiator will

page_text: always drain itself, and said valve being automatic in its action, it does not have
to be set at more or less frequent intervals in order to regulate the circulation in
said radiator.
As all the working parts of my device are connected to the detachable bracket G,
they can be readily withdrawn from the shell A or placed therein, the cap E at
the outer end of said shell being removed when such an operation takes place.
This is a particular advantage, as it economizes time and labour in finishing the
device for the trade and also facilitates the removal of the working parts at any
time repairs may be necessary.
.
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 return-bend for steam-radiators; having a transverse partition provided with.
an opening, a pivoted valve for the opening, a float connected to the valve on the
inlet side of the partition, and a counter-weight also connected to said valve on the
outlet side of said partition.
2. A return-bend for steam-radiators, that comprises a shell provided with a
transverse partition having an opening therein, couplings on opposite sides of the
partition, a pivoted valve for the opening in said partition, a rod extended on
opposite sides of the valve, a float attached to the inner end of the rod, and a
counter-weight arranged on the outer end of said rod.
3. A return-bend for steam-radiators, that comprises a shell provided with
extensions at approximately right angles to each other, a transverse partition
arranged in the shell between the extensions thereof and provided with an opening,
a bracket detachably connected to the interior of the vertically-disposed shell-
extension on the outlet side of the partition, a counterweighted float-controlled
valve for the partition-opening, an arm projected from the valve and pivotally
connected to the bracket, and a cap detachably fitted to the outer end of said shell.
-Dated-this-20th-day-of-November 1890.