US205985A - Improvement in stove-pipe ventilators - Google Patents

Description

UNITED STATES PATENT FFIGE.

THOMAS R. VV'AY, OF SPRINGFIELD,

OHIO, ASSIGNOR OF ONE-HALF HIS RIGHT TO ANGUS MGKAY AND P. H. ELLWSORTH, OF HOT SPRINGS, ARK.

IMPROVEMENT IN STOVE-PIPE VENTILATORS.

Specification forming part of Letters Patent No. 205,985, dated July 16, ISTR; application filed June 1, 1878.

To all uhom it may concern.-

Be it known that I, THOMAS R. WAY, of Springeld, in the county of Clarke and State of Ohio, have invented certain Improvements n Stove-Pipe Ventilatore, of which the folowing is a specication:

This invention relates to that class of stove- )ipe ventilators which consist of a perforated im or register encircling` a short correspondugly-perforated pipe, so that by rotating the ing the perforations may be' opened or closed at will 5 and the invention consists in seating within the pipe two stiff metal rings, for the urpose of maintaining the pipe in a true cirular form, so as to insure an easy action of he ring and admit of the ventilator-pipe beng easily iitted to the stove-pipe at all times.

Ventilators of the class above described have long been in common use; but it has een found in practice that, consisting, as they lo, of a short length of pipe greatly weakened y the formation of numerous and large per- 'orations therein, they are easily flattened or ent out of atrue circular form, in which case t becomes impossible or ditlicult to move the ing and extremely difficult to make connecion with the stove-pipe. It is to 4overcome his difficulty and prevent the ventilator from eing flattened or otherwise bent out of shape, ither before or during the time of its applicaion, that my improvement is designed.

Figure 1 represents a side elevation of my entilator; Fig. 2, avertical central section of he same; Fig. 3, a plan view of one of the tiiening-rings.

A represents the ventilator pipe or body,

provided with perforations a. B represents the outside ring or band, provided with corresponding perforatiqns, and C my strengthening rings or stays, arranged one in each end, and seated in grooves formed in the pipe.

As shown in the drawings, the rings are made of sufficient size to be stiff and unyielding, and are tted tightly within the pipe in such manner as to prevent the same from being sprung or bent in the least. It is preferred, as shown in Fig. 3, to sever each ring on one side, to admit ot' its being sprung into place, which is accomplished by lapping its ends and compressing it suflciently to spring it within the pipe, and then allow it to expand into the ring, groove, or seat. In order that the rings may be thus inserted when intended to tit closely, it is necessary that they should be severed obliquely, as represented in Fig. 3. Instead, however, of inserting and securing the rings in the manner described, they may be otherwise applied, provided they give to the pipe a rm and rigid support.

Having thus described my invention, what I claim is- 1. In a stove-pipe ventilator, the internal rings C C, applied substantially as and for the purpose described.

2. The stove-pipe ventilator provided with the internal grooves or seats, having the round rings seated therein, in the manner shown and described.

THOMAS R. WAY.

Witnesses:

A. P. LINN COCHRAN, RoBT. C. RoDGERs.

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