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Publication numberUS425369 A
Publication typeGrant
Publication dateApr 8, 1890
Publication numberUS 425369 A, US 425369A, US-A-425369, US425369 A, US425369A
InventorsHiram Cowell
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hiram cowell
US 425369 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)


Patented Apr. 8, 1890..

lill! m/NMU WITNESSES @1, o0,




SPECIFICATION forming part of Letters Patent No. 425,369, dated April 8, 1890. Application tiled June 23, 1888. Renewed March 7, 1890. Serial No. 343,065. (No model.)

To @ZZ whom it may concern:

Be it known that I, HIEAM COWELL, a citizen of the United States, and a resident of Zanesville, in the county of Muskingum and State of Ohio, have invented certain new and useful Improvements in Means for Carrying Oft Leakage from Gas-Mains; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to devices tor collecting the' escaping gas from pipes or mains.

TheV object is to produce a device which will prevent the escape of either sewer or illuminating gas into a house or from large mains in the streets; furthermore, to provide means for carrying oit any gas that mayleak from the joint and convey the same oit by means of an escape-pipe, and, iinally, to produce a device which shall be simple of con struction, eiiicient and durable in use, and comparatively inexpensive of production.

In the accompanying drawings, forming part of this specification, and in which like letters of reference indicate corresponding parts, Figure l is a side elevation of a section of a gas-main, showing the covering on the joints and the escape-pipe for carrying oft any gas that may leak out; and Fig. 2 is a longitudinal sectional view of one of the joints, showing. the manner of adjusting the escape-pipe.

Referring to the drawings, A designates a main such as is usually employed for conveying gas through the streets in cities. Around each of the joints a is placed a covering a', which may be of any elastic material, but preferably of rubber. The covering may be made in the shape of common hose, and in that case it would simply be slipped over the joints and cemented and held in place by means of a clamp or by wrapping wire around it at each end, as shown in the drawings at a2. This would prevent the escape of gas at the ends and cause it to escape through the pipe B, which extends through the covering and to Within a short distance of the joint. To each of the pipes B is secured a T-joint b, into which is fitted a pipe O, which connects all of the escape-pipes B all along the main. At long intervals in the length of the main are other escape-pipes D, which allow the gas to pass out into the air.

In covering very large mains it will be found very diflioult to obtain rubber tubing of sufficient diameter to slip over the mains. In that case sheet-rubber may be used and the edges and ends cemented to prevent the gas escaping.

This` device may be also applied to the smaller gas-pipes in a house, and also to prevent the escape of sewer gas.

It will be seen that this device may be used at but a very small expense to house owners and that all danger of leakage from the gas or sewer pipes may be overcome.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In combination, the sectional gas-main having ordinary couplings, separate and independent coverings secured 'separately about each coupling, each of said coverings being composed of flexible material placed about the couplings and secured at its end to the main, and the pipes for carrying o the escaping gas.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

HIRAM COWELL. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2763534 *Jul 22, 1954Sep 18, 1956Campbell Julian ACorrosion detector
US2920908 *Jul 7, 1955Jan 12, 1960Pipeline Coating & EngineeringMeans and method for sealing the gap between a pipe and the end of a surrounding casing
US2954797 *Aug 9, 1957Oct 4, 1960Dryer Eldon OLeak control jacket apparatus
US4232736 *Oct 23, 1978Nov 11, 1980Pillette Kibbie PLeak detection system and control using non-rigid bladder
US5286456 *Sep 24, 1992Feb 15, 1994Mobil Oil CorporationContainment of an aerosolable liquid jet
US5362446 *Oct 8, 1993Nov 8, 1994Mobil Oil CorporationSpacing an impervious impact plate from a pressurized source for deflecting jet and mesh pad abutting plate
US5465536 *Jan 27, 1994Nov 14, 1995Mobil Oil CorporationContainment of heavy vapor clouds and aerosols
US5553901 *Oct 19, 1994Sep 10, 1996Legris S.A.Device for connecting a length of duct to a coupling endpiece
US5911155 *Apr 17, 1996Jun 8, 1999Environ Products, Inc.Method of monitoring the integrity of a double wall pipe system
US6029505 *Jan 25, 1999Feb 29, 2000Environ Products, Inc.Connecting device for pipe assemblies
Cooperative ClassificationF16L23/167