US1000047A - Mica chimney. - Google Patents

Description

A. P. STORES.

MIGA CHIMNEY.

APPLICATION rum) MAR.12, 1909.

Patented Aug. 8, 1911.

IWQW/M mm a Witnesses 4 UNITED STATES PATENT oE-FIon.

"AARON P. s'ronns, or owneo, NEW YORK, assreuon T s'ronns MICA comrnu'it; or

OwEG-O, NEW YORK, A CQRPORATION OF NEW YORK.

MICA CHIMNEY.

Specification of Ietters Patent.

Patented Aug.'8, 1911.

Application filed March 12, 1909. Serial No. 482,905.

To all whom it may-concern:

Be it known that I, AARON P. STonRs, a

citizen of the United States, residing at Owego, Tioga county, State of New York, have invented a new and useful Mica Chimney, of which the following is a specificaattaching the burner cap to the chimney.

These and further objects will appear from the following specification and accompany;-

ing drawings, considered together or separately.

In the drawings: Figure 1 is an elevation of one form of mica chimney embodying my invention, Fig. 2 is a bottom view thereof; Fig. 3 is a perspective view of the lower hand or strip, before it is curved and before it is attached to the mica. Fig. 4 is a section on the line H of Fig. 3. Fig. 5 is .a section on the line 55 of Fig. 2. Fig. 6 is a section on-the line 66 of Fig. 2; Fig. 7 is a side view of a lower band, slightly modified from that shown in the preceding views. Fig. 8 is a sectional view of a structure made with the. band shown in Fig. 7, such view being similar to Figs. 5 and 6.

In all of the views like parts are designated by the same reference characters.

In carryin out my inventioInI provide a chimney fhrmed of one or more mica sheets 1 with an upper band 2 and lower band 3. The edges of the sheets overlap and are secured together by eyelets 4, as shown.

5 are the usual ventilating openings and 6 is the burner cap.

The size of the chimney, the ventilating openings, burner cap and the details of the parts will be modified in accordance with.

the use to whichthe chimney is put.

The chimney illustrated in Figs. 1 and 2 is of a type employing an incandescent mantle. The upperband 2, as shown, is made of sheet metal, doubled over the edge of the mica and holding the latter in proper shape and protecting the upper edge. The lower band3 is made as shown'in Fig. 3 or 7.

Referring to Figs. 3 and 4., it will be seen that the band 3 is folded at 7, and doubled back upon itself at 8. The band is againfolded at 10 and again doubled back at 11,---

leaving an opening 12 between the parts 8 and 11. The doubled back portion 8 is now -of less depth than the straight portion 9. The portion -13 of the straight portion 9 extends below the fold 10. The mica sheet or sheets is inserted in the opening 12, and

is secured therein by pinching the parts 8 and '11 together. Preferably, the mica sheet is inserted in the band while the latter 1s straight (as shown in Fig. 3). Afterward, the band is bent to circular form and the two ends are secured together by an eyelet or rivet passing through the openings 1et14 in the ends of the band. This eyelet also passes through the overlapping sheets of mica. lVhen-t-he band, is bent to circular form, the fold l0 and doubled back portions 8 and 11 must be arranged to be on the inside. The fold 10 will produce an annular ledge and the portion 13 will produce an annular rim or flange extending below such ledge. i

The burner cap 6 may be provided with a circular plate or disk 15. The disk or plate 15 of the burner cap is designed to fit as snugly as possible within the portion 13 and abut upon the fold 10. When in this posi-' and 8), thus constituting a fastening for the burner cap. The'fold lO forminga ledge, I I

acts as a stop and serves to prevent the burner cap entering the chimney any farther. The portion 13, being folded over, acts as a fastening means to hold said burner cap in engagement with the ledge.

For the purpose of supporting the burner cap, should the bottom of the chimney be accident'ally formed of too great a diameter, so that the burner cap would not engage with the fold 10'I may provide the portion 13 with cut away portions forming tongues 16 (as shown in Fig. 3). These tongues are bent inward at 16 (see Fig. 5) and extend inward a greater distance than the width of the fold 10. The plate 15 of the burner cap will. be embraced, therefore, between the tongues 16 and the turned in portions 13*. For the purpose of adding to the strength of the plate 15, the same may be-dished at 17, although this is not essential,a fiat pla'te being illustrated in Fig. 8. According to my invention, therefore, the Plate 15 may be clamped etween the fold 10 and the turned in portion 13 (as shown in Fig. 8) or between the tongues 16? and the turned in portion-13, as shown in Figs. 5 and 6, if such vent the plete being forced inward. is

tongues be employed. Where the tongues .16 are employed they abut against the ledge 10, which thereby serves as a backing topretherefore plain, that whether the tongues be used or not the burner cap is clamped be tween the ledge and the flange 13, This results in, a styong and rigid structure, and permits the elnj iloymentof thin and flexible metal bands,

ehimneyhaving ledge and a flange, he

tween which the cap is clamped.

the invention v 2. In combination with emica chimney having a lower band with a ledge, of a burner cap and means on the band 01 clampingthe eep against the ledge. I

3, A, mice chimney With a folded lower bend, forming a ledge and'a flange, in combination with a, burner cap lying within the band, the flange being turned inward to hold the'cap in place.

21. A mica chimney having a lower'band, said be: i heing folded over the lower edge oi the zniee'an'd forming a ledgefland a depending portion, split to form fingens and flanges in combination with a burner cap, said cap resting against the fingers and the flanges being turned over upon the pep and retaining it in place.

This specification signed and witnessed larch (5th, 1909. r i

'AAnoN P. Seton-es. Witnessesi V i i C. D. Yo'nnms, H. G. F 0512mm.

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