US530036A - Ventilator or chimney-cap - Google Patents

Description

(NoM odelJ G. FRANZ SE B. T. MERRILL.

VENTILATOR 0R CHIMNEY GAP.

No. 530,036. Patented Nov. 27, 1894.

WITNESSES IJVV'EAZBRS; W m M .dttorney UNITED STATES PATENT OFFICE.

CHARLES FRANZ AND ROBERT T. MERRILL, OF BELOIT, WISCONSIN.

VENTILATOR OR CHIMNEY-CAP.

SPECIFICATION forming part of Letters Patent No. 5230,036, dated November 27, 1 894.

Application filed June 27, 1894. Serial No. 515,237. (No model.)

Toall whom it may concern: the bottom walls of which are secured to the Be it known that we, CHARLES FRANZ and cone 0, in this manner forming a series ROBERT T. MERRILL, citizens of the United of radial and upwardly directed passages d States, and residents fBeloit,in thecountyof all of which lead out of the upper portion 5 Rock, and State of Wisconsin, have invented of the interior chamber formed by said cone 55 certain new and useful Improvements in Venand cap. The openings between the ribs 0 tilators or Chimney-Caps; and we do declare form a second series of radial and upward the following to be a full, clear, and exact depassages which lead from the interior chamscription of the invention, such as will enable her just below the upper passages. The cap to others skilled in the art to which it appertains D is made sufficiently large to come 'well 60 to make and use the same, reference being down on the cone 0. The arrangement of had to the accompanying drawings, and to letthe cap, deflectors and passages is such, it ters of reference marked thereon, which form will be readily seen, as to efiectually prevent a part of this specification. the wind or weather from entering the stack. Figure 1 of the drawings is arepresentation A current of air striking the cap from any 65 of an elevation of the invention applied. Fig. direction creates a partial vacuum in the up- 2 is a section on line a:ac, Fig. 1 enlarged. per portion of the stack, thus insuring a This invention has relation to certain new strong up draft at all times. and useful improvements in chimney caps Having described our invention, what we and ventilators, our object being to providea claim as new, and desire to secure by Letters 70 cap or ventilator for chimneys and draft pipes, Patent, is-- which is simple in contruction, and which ef- 1. A chimney cap or ventilator comprising fectually prevents the wind and weather from a lower cone deflector having an opening entering the chimney or pipe, and thus maintherein, a series of radial ribs supported tains a perfect up draftin all kinds of weather. upon said deflector, an upper and larger cone 75 With this object in View, the invention supported on said ribs, the spaces between consists in the novel construction and coinsaid ribs forming a series of radial and upbination of parts, all as hereinafter described Ward passages, an opening in the truncated and pointed out in the appended claims. apex of said upper cone, and a cap covering Referring to the accompanying drawings said opening and formed into a series of ra- 8o the letter A designates a draft tube or pipe dial ridges and depressions, forming a series upon the upper end portion of which the cap of air passages, substantially as specified. or ventilator is supported, by means of a col- 2. The combination with the draft tube or lar a fitting thereon. Attached to said collar pipe A, of the collar supported on the upper a. is a deflector B, which consists of a metalend of said tube or pipe, the lower truncated 85 1 lie plate in the form of a frustum of a cone, cone B, the radial ribs supported on said and having a central opening corresponding cone, the upper truncated cone supported on to the opening in the tube or pipe A. Snpsaid ribs, upward and radial passages be ported upon the outer surface of this detween said ribs, the cap over the opening in flector, are a series of edgewise disposed rathe upper cone and bent to form a series of 0 dial ribs 0 upon which is supported a second, angular radial ridges, forming air passages, and larger deflector cone 0, also slightly trunsubstantially as specified. cated and formed with an opening b. This In testimonywhereof weaffix oursignatnres cone 0 is sufficiently large to cause its lower in presence of two witnesses. 5 marginal portion to overhang the edge of the CHAS FRANZ deflector a RoB'r T MERRILL Over the opening I) is placed a cap piece D which vis bent or corrugated to form a series Witnesses: of angular, symmetrical, and radial ridges J. B. DOW, d separated by corresponding depressions e D. H. FOSTER.

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