US1441107A

US1441107A - Damper

Info

Publication number: US1441107A
Application number: US519606A
Authority: US
Inventors: Jr Abram C Mott
Original assignee: ABRAM COX STOVE Co
Current assignee: ABRAM COX STOVE Co
Priority date: 1921-12-01
Filing date: 1921-12-01
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

Jan, 2, 1923. I 1,443,107

A. C. MOTTl JR.

DAMPER. FILED DEC. l. i921.

2 SHEETS-SHEET l ma* l I EM i Patented dan. 2, i923.

ABRAIVI C. llfIO'lT, JR., OFPHTLADELPHIA, PENNSYLVANTA, ASS'IGNOR TABRALL C if? t i lil l1 STOVE COLVIPANY, 0F PHTLADELFHIA, ,PEJTNSYLVAINLH' CRPORiTTlF PENN-- i SYLVANIA.

neiarnr..

Application ledDecernber 1, i921. Serial No. @193505.

To all whom tf/mty concern.' l A Be it known that l, BRAM C. Motor, Jr., a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements inl)a1npers,ol2 which the following is a specication.

The object of my invention is to construct Fig. 5 is an end view looking in the di rection of the arrow, Fig. l; f

Fig. 6 is a sectional view on the line 6-6, Fig. l; x

Fig. 7 is a view Showing the damper secured toa vertical pipe or liue;

Fig. 8 is a view showing the damper secured to aehorizontal pipe or llue; and

Figs. 9 and 10 are views of modifications of the invention.

Referring to the drawings, l is the frame of the damper curved at the back to lit a flue of a given size and it has a llange 2 on all four sides. This flange has bolt or rivet holes by which it can be attached to a vertical flue 3 or a horizontal flue Ll. The opening in the damper is rectangular in the present instance and the internal flanges 5 of the frame l extend on two sides, while the flanges 6 extend on the other two sides. The damper plate 7 has trunnions 8 at diametrically opposite corners. These trunnions lit in recesses 9 in the frame l. The ends of the trunnions are rounded or tapered to fit corresponding sockets l0 kin brackets 11, which are secured to perforated lugs l2 by bolts 13 so that the damper' plate is free to turn in the sockets. The plate 7 has a flange ll on all four sides, but the flange on two oi the sides is deeper than it is on the other two sides, as shown in Figs. 2 and 3. This portion of the llange hears against the face ot the flanges 6 of the frame. On the other two sides of the plate is an outwardly projecting lipk l whichextends under the flange 5 or `the traine so that, wheny the damper is closed,

thelip l5 rests-against the iiange 5, while the edge of the plate rests against the outer l' (I surraceor the flange 6. .f l

Bymaking the daml er plate with a ilange .deeper at one side thank at thek other, tha p portion of the plate having the deeper llange overbalances the other `portion in weight and tends to keep the damper in the closed position. ln some instances the damper plate may be made without iiange,in which case a weight 16 is provided on one side, as illustrated in Fig. 9.

17 is an arm projecting from the bracket. This arm is perforated to receive a chain,

or rod, by which thedamper is operated and `held in any position desired.

Vl/vhile the damper is illustrated as applied to a flue, or smoke pipe, it will be understood that the damper may be. applied to any portion of a furnace where 'the ordinary damper is used.y l

y my invention the number oit sizes of damper parts necessary to bev carried in` stock can be materially reduced. A damper made in accordance with my invention can be used without alterations on a vertical line or pipe or on a horizontal line or pipe. It can also be applied to a pipe arranged at any angle.

ln F ig. l0 ll have shown circular damper 7n adapted to a similar opening in a frame la, the pivot of the damper being located, at 'diametrical corners or the traine as in Fig. l.

Tn some instances the pipe or casing having the opening therein for the damper may forni part of the frame, 'the bearings being attached directly to the pipe or casing.

I claim:

l. The combination in a damper or a frame; and a damper plate pivoted to the trame at `diametrically opposite corners ol:

vthe trarne, the plate being 'weighted on one plate flO frame adapted to be secured to a. pipe or other structure, Said :traine having a rectangular opening therein; and a rectangular plate adapted to eloee the opening and pivoted to the iframe at diainetrieally opposite corners, the damper plate being Weighted on one side so as to normallyv close the plate againstthe frame.

4. The combination in a damper of a anie shaped to t a pipe, the frame having a rectangular opening therein adapted to communicate With the interior of the pipe; and a plate arranged to close the opening and having pivots at diametrioally opposite corners, the plate being hanged, said lange being deeper on one side than on the other so that the deep side acts as a Weight to keep the damper plate closed against the frame.

5. The combination in a damper of a frame having a securing flange, said frame having a rectangular opening therein; a damper plate closing the opening and having trunnions at diametrically opposite corners; and sockets on the Jframe for the trunnions, the plate being langed on all four side and having a pro3eeting lip on two sides, the frame having an inwardly projeeting flange on two sides with which the 11p comes in contaot,tne plate being Weighted on the other side, said Weight tending to `keep the damper plate in the Closed posi-