US1694740A

US1694740A - Vania

Info

Publication number: US1694740A
Authority: US
Publication date: 1928-12-11
Anticipated expiration: 1945-12-11

Description

R. W. GRISWOLD STOVE DAMPER Filed Jan. 28, 1926 s w %n N V N E R V m m W A Y B Patented Dec. 11, 1928.

UNITED STA OF ERIE, PENNSYLVANIA, .ASSIGNOE TO THE GRISWOLE MANU- ENNSYLVANIA, A COIzl-lORATION OF PENNSYL- noenn w. eniswonn,

FACTURING C0 VANIA.

MPANY, 0F ERIE, 3?

TBS

PATENT OFFICE.

STOVE DAMPER.

Application filed January 28, 1926 Serial No. 84-314.

Stove dampers are ordinarily provided with damper rods through the which may be forced stove pipe and extended through damper receiving openings in the damper and locked.

Such damper rods and the stove pipe is either with the damper implement. These provided with damper rod shoulders for with the damper plate and the are ordinarily pointed usually perforated rod itself, or some rods have been damper locking the wall of the stovepipe adjacent to the opening is enlarged ordinarily by the of the rod itself in opening.

With the manipulation forcing it through the present invention, the

damper plate is formed so that the rod may be inserted end and at the same time arranged nearer the dle end. Thls gives dle for working th into the rod opening from either perforation in the stove pipe.

The invention is illustrated in the accoin drawings as follows shows a plan view of the damper.

panying Fig. 1

Fig. 2 a detached view of the rod. Fig. 3 a section on the line 3-8 inF g. 1. Fig. i a section on the line 4& in Fig. 1.

1 marks the damper plate, 2 a minimum opening usually provided in the damper,

and 3 a rod opening across the damper extending diametrically and ordinarily formed by an alternate arrangement of loops extending each side of the plate.

In the present construction loops 4 are arranged at the edges of the damper plate, from the loops 4. and center than a loop 5, the loops instance at the opposite side ranged in each the loops 5 inwardly the loops 6 nearer the 5 being arfrom the adjacent loops l and 6. The open ing at the loop more readily recelve as it passes through vided with a. groove a is slightly tapered so as to the rod and the opening each of the loops is proor enlargement through which locking shoulders8 of a rod 9 may pass.

10 and handle 11. jaeent to the pointe with the usual point shoulders 8 are adthe spring 13 greater length of rod between the shoulders 8 and the handle 11. After the rod is inserted in a perforation in the stove pipe the shoulders 11 must be worked through this perforation. This is usually accomplished by a manipulation of the rod and. this greater length of rod gives a greater leverage in rocking the rod back and forth in working the shoulders through the perforation. A. cup 12 is placed around the rod at the handle end and a spring 13 is arranged on the rod and positioned in the cup, the spring operating against the handle to force the rod endwise toward the handle.

Open spaces 14 are formed in the plate acent to the broad opening 3 of sufficient size to permit the turning of the rod in the opening 3 when the shoulders 8 are brought into the spaces 141-. Leading toward the center of the plate from the spaces are wedge rod against turning in the plate and locks the rod in place in the plate.

What I claim as new is In a stove damper, the combination of a damper rod having a point, a handle and laterally projecting shoulder more nearly adjacent to the point than to the handle; and a damper plate having a rod opening shaped to receive the rod froin'either end of the opening and having a: locking surface with an adjacent open space at each end of the rod opening, the open space permitting the turning of the inserted rod in the ()PQ11- .ing to bring the shoulder into position to 7 engagewith the locking surface upon a rec'iprocative movement of the rod.

In testimony whereof I have hereunto set my hand. I

noenn w. (iniswonn moves the shoulders 8 along, .the locking surfaces 15'and thus locks the