US518226A

US518226A - Tube-stopper

Info

Publication number: US518226A
Authority: US
Publication date: 1894-04-17
Anticipated expiration: 1911-04-17

Description

(No Model.) 2 Sheets-Sheet 1.

E. W. GRAINE.

TUBB-ST-OPPBR.,

No.v 518,226. Patented Apr. 17,1894.

Il Il ll ll (No Model.)

l 2 sheets-sheet 2. Y. E. W. CRAINE.

TUBE STOPPBR.

mi NAmNAL umoanAPNmu consum'.

WASHINGTON. n. c,

Nrrn TATES TENT ENCE.

EDWIN W. CHAINE, OF MISSOURI VALLEY, IOWA.

TU BE -STOPPER.

SPECIFICATION forming part of Letters V'Patent No. 518,226, dated April 17, 1894.

Application filed March 1, 1893.

To all whom t )nay concern.:

Be it known thatI, EDWIN W. CRAINE, a citizen of the United States, residing at Mis souri Valley, in the county of Harrison and State'of Iowa, have invented certain new and useful Improvements in Tube-Stoppers; and I do declare the following to be a full, clear, and exact 'description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to steam boilers, and its object is to effectually stop up a leaky tube to prevent the water and steam from escaping into the fire box and smoke box.

The invention consists in a rod having at one end a flexible washer to tightly lit the tube, and at the other end a shell containing a set of teeth to bite into the tube, and hold the shell fast, so that a nut on its outer end may be screwed up against a gasket to make a tightjoint.

In the drawings, Figure lis a longitudinal section of a tire tube boiler, with one of my tube Stoppers in place. Fig. 2 is a section of a tube stopper on a larger scale, and Fig. 3 is a view of the shell and itsadjuncts on a still larger scale. Figs. 4, 5, and 6 show an attachment.

. The rod A is composed of short lengths united by couplings a, so that it can be made longer or shorter, according to the locationof the break b in the tube B. At the inner end of the tube is a iiexible cupped washer O, preferably of leather, backed by a metallic sup port D, the two being confined between nuts o. screwed upon the threaded end of the terminal section of the rod. The outer end of the rod carries a screw threaded collar a2, on which isscrewed the inner end of a tube or shell E, of such diameter externally as to t snugly into the tube B. Near the outer end yof the shell, are two or more holes e, through which project sharp-edged dogs F attached to the inside of the shell, preferably by means of spring tails f riveted to the shell at f. The outer end ofthe shell is screw threaded Serial 110.464,26). (No model.)

both internally and externally. A screw plug G isscrewed into it having in its outer face a wrench socket g and provided. on its inner face with a conical stud g' whose axis lies substantially in the axis of the tube B. When the plug is screwed into the shell, the cone enters between the dogs and forces them outward through the holes e. A nutH screws upon the outside of the tube.

The operation of my device is illustrated in 6o Figs. ,1 and 2, in which it is shown inserted into a leaky tube. The cupped Washer O closes the inner end of the tube. The plug Gr is then turned in, forcing out the dogs and causing them to bite firmly into the tube B.

sired, being suitably packed at its inner end.

Figs. 11, 5 and 6 show an attachment for lifting a section of a broken tube which has dropped out of line. The attachment consists of a tapering point or finger K curved in cross section, and having at its wider end, an 8o upright yoke 7c which enables it to be clamped by the outer Anut o. to the end of the rod A, in front of the washer C. The tip of the nger is preferably curved slightly inward, as

shown, to guide it over any obstruction in the tube. A iiexible tongue lo is cut in the rear portion of the finger and is sprung downward to guide thel end of the broken tube section over the washer C.

Having thus described my invention, what 9o I claim, and desire to secure by Letters Patent, is-

1. A tube stopper comprising a rod carrying at one end a iiexible washer, and at the other end a set of dogs, means for forcing them into 9 5 the tubes tohold the rod in place, and a nut and gasket for closing the outer end of the tube, substantiallyr as described.

2. A tube stopper comprising a shell tting4v the tube, a set of dogs carried by the shell, Ioo

The 7o means for forcing them outwardly, a nut screwing upon the outer end of the shell, a rod extending from the inner end of the shell, and a Washer on the end of the rod.

3. The combination with the shell E having the nut H and the holes e of the dogs F having spring tailsf, fastenedto the inside of the shell, and means for forcing the dogs outwardly through the holes, substantially as described.

4. The combination With the shell E having the holes e, of the dogs F having spring tails f attached to the shell, the conical screw plug G, and the external nut H, substantially as described.

5. The combination with a tube stopper,of a finger projecting from the end thereof at its periphery to lift a broken tube section, substantially as described.

G. The combination with a tube stopper, of a detachable 'linger projecting from the end thereof, at its periphery to lift a broken tube section, substantially as described.

7. The combination with a tube stopper, of a tapering finger having its wider end secured to the end ofthe tube stopper, at its periphery to lift a broken tube section substantially as described.

8. An attachment for a tube stopper, co1nprising a tapering finger curved in its cross section, and having a yoke at its Wider end, substantially as described.

9. An attachment for a tube stopper, cornprising a tapering linger curved in cross section, and having a yoke and a flexible tongue at its wider end, substantially as described.

In testimony whereof I afiix my signature in presence of two Witnesses.

` EDWIN WV. CHAINE. Witnesses:

J. S. DEWELL,

WINDSOR J. LLoYD.