US693838A - Chimney for blacksmiths' forges. - Google Patents

Description

No. 693,338. l. v Patent'd Feb. 25, nmz.

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CHIMNEY FOR BLAGKSMITHVSl FORGES.

(Application Med Dec. 11, 1901.)

(No Model.)

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UNTTED STATES PATENT OFFICE.

WILLIAM E. CANEDY, OF CHICAGO HEIGHTS, ILLINOIS, ASSIGNOR TO THE CANEDY OTTO MANUFACTURING COMPANY, A CORPORATION OF ILLINOIS.

SPECIFICATION forming part of Letters Patent N o. 693,838, dated February 25, 1902.

Application filed December 11, 1901. serial No. 85,525. (No model.) y,

To all whom t may concern:

Be it known that I, VILLIAM E. CANEDY, residing at Chicago Heights, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Chimneys for Blacksmiths Forges, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to chimneys for blacksmiths forges.

The object of the invention is to produce a chimney or draft-due with a movable funnel or intake, which funnel can be moved-to present its mouth nearer to or farther away from the forge-lire, and thus permit the application of different forms ofwork to the fire, at the same time presenting the intake as close as possible to the re, so as to draw in as much of the smoke and gases of combustion asvpossible.

In the drawings, which are not made to proportions, butare intended as a suggestive guide to the skilled mechanic, Figure l is a perspective view showing the funnel and part of the chimney or draft-hue connected to a forge-shield of common form. Fig. 2 is a vertical central section of the same, indicating in dotted lines a different position of the funnel. Fig. 3 is a detail plan of mechanism by which the funnel may be swung and held in adjusted position. Fig. 4t is a sectional view of trumpet-mouth detached.

LetAindicate a shield of common construction, being essentially a plate of metal, with means for attachment to the hearth B or to the frame of a forge. The form or size of this shield is not material to the present inven tion, as such shields are made of various forms and dimensions. Rods or braces C C, suitably connected to the shield and to the forge frame or hearth, serve to support the shield and steady the same. For convenience of construction and shipment I prefer to make the shield, draft-flue, and funnel a portable structure, which with slight alterations can be attached to many well-known forges as already constructed. The lower edges of the shield may be turned forward and connected to the braces C, if desirable. Near the top of the shield there are projecting lugs or brackets D, extending to the front of the shield.

These lugs may be secured to the top of the shield by the same rivets or fastening devices which hold the braces C. The permanent draft-pipe E extends between the brackets D and may connect in any suitable or usual manner with a chimney. or iiue.

The movable funnel F is pivoted within the lower end or mouth ot' draft-pipe E. The pipe E does not extend into proximity with the re, but terminates at itslower end considerably above the fire. The movable funnel F forms a practical continuation lor downward extension of said pipe E and is the only inlet by which smoke and gases can enter pipe E. For convenience in making a joint the upper end of funnel F has convex metallic bars or bushings G attached to its outer surface. The upper end of funnel F, with bushings G attached, ts neatly into the lower end of pipe E. The funnel is pivoted to the draft-pipe and to the ears D by bolts or pivots H, passing through the sides of the funnel and through the draft-pipe and lugs. The funnel F so supported on its pivot is in position to swing from said pivoted supports and still preserve a fairly-close joint between the funnel and draft-pipe, no matter into what position within the ordinary conditions of use the parts may be moved.

The funnel-body is usually made of sheet metal, and for convenience'of construction and packing the flaring or bell mouthpiece I is made detachable and will slide down over the tapering body of the funnel F and find its seat at the mouth of the funnel. Various forms of mouthpiece may be substituted.

The forge-dre on hearth B is of greater or lesser quantity and distance from the shield, according to the conditions of the work,\vithin the limits, of course, that the center of the fire j.

is substantially over the twyer or air-supply to the fire.

The joint by which the funnel F is supA ported may be so tight as to support the funnel in adjusted position by friction. I'prefer,

however, that mechanism shall be provided for holding the funnel in adjusted position, and a suitable mechanism for this purpose is illustrated in the drawings.

To each of the braces C a bearing-piece is attached. These bearing-pieces are prefer= IOC ably small castings embracing the braces C and held at any position thereon by setscrews. The bearing-pieces K K" are made to slip readily on the rods or braces C. One piece K has a cup L, into which a coiled spring M is inserted. The bearing K has on the side toward the bearing K a ratchetsurface 12. A rod or shaft O extends from bearing K to bearing K and has a crank O behind the funnel-piece F. The rod O bears a fixed rack or spline R, which normally engages the ratchet-surface K2 when the shaft O is forced in that direction by the coiled spring M, against which the other end ot rod O rests in the recess in bearing-piece K.

A hand-grasp S permits a person to take hold oi' shaft O, and by pressing in the spring the clutch members K2 R will be disengaged. The shaft O may then be rocked, and the crank O will be more or less projected to hold the funnel in desired position. On releasing handle S the spring M will cause the clutch members to rengage, thus holding the crank in adjusted position. The weight of funnel F can generally be depended on to hold the funnel against said crank O.

The mechanism described is merely a convenient means for holding the funnel in adj usted position.

, I am aware that a hood has been devised which could be projected more or less over the re in a forge. Such, however, is not like my invention, since the side support of such hood remained at a iixed distance from the fire, and the opening is larger or smaller, accordingly as the hood is adj usted.

My funnel approaches a mouth of uniformsize nearer to or farther from the re, as desirable. The effect of such a funnel when placed close to the lire is much greater than when at a distance. The proper distance can be arranged according to quality of fuel, draft of chimney, (which may be forced,) and other factors which may arise under different conditions of usage.

1. In forge-chimneys, the combination of a fixed pipe, supported and having itslower end some distance above the forge-fire, of a pipesection hinged thereto and forming a downward continuation of said fixed flue, and means for holding the hinged section in adjusted position relatively to the forge-hre.

2. In a forge-chimney, the combination of a metallic shield, a fiXedilde-section supported thereby, With its lower end terminating above the forge-fire, and a movable flue-section forming a downward extension of said fixed flue.

3. In a forge-chimney, a fixed draft-pipe having its lower terminus some distance above the forge-tire, a hinged funnel-section forming a downward extension of said fixed flue, and means for maintaining a closed joint between the hinged and fixed line-sections.

4. In a forge-chimney, a fixed draft-flue having its lower end supported above the forge, a hinged section forming a downward continuation of said ilue, and a flaring mouthpiece constructed to slide over said hinged section.

5. The flaring funnel-section having a convex bushing at its upper end, the fixed flue into which said bushing fits, pivots connecting the iiue and funnel, and means for holding the funnel in adjusted position, all combined.

6. The combination of a forge-shield and inclined braces connected thereto, lugs projecting from the shield, a iiue-pipe connected to said lugs, and a funnel-section pivoted to the flue-pipe, all combined.

7. The combination of a forge-shield, inclined braces connected thereto, a fixed fluesection on the shield, a hinged funnel pendent from the fixed section, and mechanism supported by the braces by which the funnel may be heldin adj usted position, all combined. i

In testimony whereof I afx my signature in presence of two witnesses.

W. E. CANEDY.

Witnesses:

W. A. BARTLETT, M. E. BROWN.

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