US2207154A - Stovepipe fastener - Google Patents

Description

July 9, 1940. G. LAFEVER STOVEPIPE FASTENER Filed March 3, v1959 .//\/././E'/\/ TUE GEQRGE. LAFEVER E m fi 7-7-02 NEW Patented July 9, 1940 UNITED STATES PATENT GFEQE 3 Claims.

This invention relates generally to heating appliances, and particularly to a stovepipe fastener.

The main object of this invention is to construct a fastener for stovepipes which will pre- 5 vent them from being accidently withdrawn from a flue opening,

The second object is to construct the device in a manner that it will be inexpensive to make, easy to apply and remove and not affected by the 10 corrosive action of the gases and heat within the flue.

These and other objects are accomplished in the manner set forth in the following specification as illustrated in the accompanying drawing,

15 in which:

Fig. 1 is a fragmentary view showing the preferred form of the device applied to a flue and showing the flue and the device itself cut away in cross-section.

20 Fig. 2 is a horizontal section through the device showing same in a locked position in dotted lines and in an unlocked position in full lines.

Fig. 3 is an end elevation of Fig. 2.

Fig. 4 is a fragmentary side elevation of the 25 latching member taken along the line 4-4 in Fig. 2.

Similar numerals refer to throughout the several views.

Referring in detail to the drawing, there is 39 shown a flue I!) having the usual refractory thimble l I which forms a part of the flue. The device itself consists of a length of stovepipe [2 having the usual bead. I3 formed a short distance from the end Hi; the bead I3 stops against the thim- 5 ble n.

n the inside of the pipe I2 is secured a yieldable arm l to which is hingedly attached a rigid bar I 6 having a hook I! formed on the end thereof. Also attached to the pipe l2 and opposite the arm I5 is a yieldab-le latch l8 having a hole I9 similar parts formed therein adapted to receive the point 20 of the hook IT.

The operation of this form of the device is as follows:

To insert the pipe 12 into the thimble II, it is 5 only necessary to have the parts in the position shown in full lines in Fig. 2 and to push the pipe 12 into the thimble H and then to reach in and insert the point 20 of the hook ll into the hole I9 causing the members 85 and Is to spread out- Wardly to the position shown in dotted lines in Fig. 2, thereby effectively preventing their withdrawal from the flue ll) for as long as the bar i6 is in place. In order to withdraw same, it is only necessary to unhook the bar It which immedi- 15 ately releases the pipe I2.

I claim:

1. A stovepipe fastener consisting of a pairof yieldable arms secured to one end of a, stovepipe extending from the stovepipe inwardly into a flue and a bar hinged to one of said arms and latchable to the other arm for spreading the ends. of said arms to a distance greater than the diameter of the pipe.

2. The combination of a stovepipe adapted to be inserted into a flue opening, yieldable arms fastened to one end of said stovepipe and projecting into said flue opening beyond the end of said pipe and a bar disposed between the projecting ends of said arms for bending said yieldable arms outwardly when said pipe is in position.

3. A device of the class described comprising a smoke pipe having projecting from one end thereof on opposite sides of its center a pair of yieldable arms which are attached to saidpip'e,

one of said arms having a perforation near the outer end thereof and the other arm having a bar hinged thereto provided with a hook at its opposite end adapted to engage the perforation in its adjacent yieldable arm.

I GEORGE LAFEVER.

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