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US Patent: 221,479
Junction Service-Boxes for Street Steam Mains
Patentees:
William W. Trevor - Lockport, Niagara County, NY
Francis N. Trevor - Lockport, Niagara County, NY

USPTO Classifications:
137/599.01

Tool Categories:
propulsion and energy : steam apparatus : steam heating

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
James F. Fitts
Alfred Holmes
Charles F. Tuncer
Jason Chase

Patent Dates:
Applied: Aug. 28, 1879
Granted: Nov. 11, 1879

Patent Pictures:
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"Vintage Machinery" entry for Trevor & Co.
Description:
R. F. Osgood - patent attorney

Our improvement relates to street steam pipes laid in cities and towns for heating and other purposes; and it consists in an improved construction of the junction-boxes where the steam is taken from the main into service pipes, as hereinafter more fully described.

Having thus described our invention, what we claim as new is—

1. In a system of street steam-pipes, the combination, with the steam-main A, of the hollow chamber B, surrounding said main, with service-pipes C C opening from said chamber, the main communicating with said chamber by ports at the top or bottom, and valves situated within the chamber for controlling the steam, as described.

2. In. a system of street steam-pipes, the combination, with the main pipe A, of the chamber B, divided into compartments c c g, with ports b bf opening from the main pipe into said compartments, and ports h h opening from the lower into the upper compartments, said ports b b and h h being covered by valves i i and fc fr, as shown and described, and for the purpose specified.

3. In a system of street steam-pipes, the combination of the main pipe A, provided with ports b b and/at its top and bottom, the compartments c c g surrounding said main pipe, and provided with lateral service-pipes G C, and a system of valves, i i and ft fc, arranged in connection with ports b b and h h, to admit the steam from the main pipe to the service-pipes, either through the upper or lower compartments, as herein described.

4. In combination with a steam-main pipe, A A', the inclosing-chamber B, provided with lateral service-pipes C C, and arranged with a diaphragm having valves i Je, as shown and described, and for the purpose specified.

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