US1671267A - Candlewick - Google Patents

Description

Patented May 29, 1928.

UNITED STATES PATENT OFFICE.

FRANK P. ArKINs, or CINCINNATI, OHIO, AssIGNoR fro ATKINs a PEARCE MANUFAC- IrUItINGf COMPANY, e oF `GINGINNATI, oIIIo, A CORPORATION 0F OHIO.

CANDLEWICK. n

Application led January 7, 1927. Serial No. 159,695.

My invention relates to candle wicks in general, and more particularly to the type of candle wick shownLand described in my Letters Patent No. 1,496,837, granted June 10, 1924, which concerns a wick for sacramental paraffin candles. y

As in my said patent, it is my object to provide a lWick which is self-supporting, due to the fact that the paraflin melts easily, and which will burn evenly and without fiaring and flickering for a predetermined length of time.- v

My presentfimpr'ovement consists essentially in providing a novel core for the wick of my patent, although the core may be used in othertypesof wicks for like purposes.

The filament or core which I employ in my improvement is formed of a single thread preferably of linen, although other fibrous st-rands may be employed. While threads or twists of threads, stiffened with glue, have been proposed as cores for wicks previous to my invention, I have found that twisted linen or fibrous threads, or a glue stiifened thread will not serve the purposes required in sacramental paraffin candle wicks.

I find that a core formed of single fibrous strand, such as number twenty-five linen thread, will be the best to employ instead of a twisted cord or a glue stiifened thread.

The single thread burns or is expended more readily than a metal wire, such as lead wire, but without some retarding of its burning and some slight stiifening, the operation is not satisfactory.

The thread, according to my improvement, is preferably treated with a weak solution of a` fire-proofing substance,` or retarder of combustion, such as a weak solution of sal-ammoniac and yacetic acid, or a weak solution of commercial alum.

Other similar solutions will serve, and I do not wish to assert that the ones 'given are the only practical ones. i

The thread maybe treated with the solution and dried, which results in stiffening it slightly as well as rendering it less combustible than in its untreated condition.

In the drawings I have illustrated the wickl of my former patent, although other modes of braiding the body of the wick around the core might serve.

- Figure lisa diagrammatic view showing the braiding operation. 'l

f Figure '2 isla much enlarged view of the braided wick.

Figure 3 is a -diagrammatioview illustrating the square nature of the braid, the threads or twinefbeing much enlarged.'

kI have not attempted to show a complete braiding machine, nor the method of drawing the Wick'material through the former plate over, tension'rolls and onto the shipping spool." It will be understood that driven rolls drawthe various threads ofthe wick including the linen thread core which has preferably been treated and dried, through av plateA having a single hole therein, of approximatelyA the desired diameter of the wick, whence the wick passes onto the driven rolls` which are faced with emery cloth to prevent slipping. Several turns around the rolls are made in the wick, after which it is guided to a winding shaft which rolls it up on a removable fibre spool, upon which the wick is shipped.

These operations, with the except-ion of the emery cloth on the rolls and the removable fibre spools or cores, are used in twine braiding machines as a familiar practice, and need not be detailed to those skilled inthe art.

I have merely illustrated the nature of the braid by showing in Figure l eightv spools of which the spools l move around a Figure 8 path asat 2, and the spools 3 move around a like path 4.

Single ply twine is mounted on these spools sov that eight pieces of single ply twine are used in the wick 'as' distinguished from, say four pieces of double ply twine, which would give a wick of equal diameter, but in which there would not be any guaranty of uniformity, due to unevenness in the double vply and the difficultyV o handling double ply twine in a perfectly uniform manner in a braiding machine.

As was noted, the threads of twine are passed through a hole 5 as they are drawn from the spools during the spool movement, said spools passing each other and each spool l acting to lay its thread across each spool '3 during the' operation.

The result of moving the spools in the manner described and withdrawing the twine through thev former plate at the same time is to forni a square braid, in which the threads cross each other at "6, 7, 8 and 9., at the points where the spools pass. each B'y `1e1iei1rf, 11g` tothe, threads of single ply twine as a; 'c, d, e, f, g and'` 71 it willbe noted that thready a passes under thread. la, and at the saine time thread c passes over thread d, and so on, aspeijthe diagraniyin thread. 21 wilL have taken tl1e.fpl` ae.` of

` thread c and will pass` over` its companion thread which. willi be theeasefall the way around the pattern. During. i this., braiding Operation Ythe thread whieh ordinarily isytreated1 03 is drawn: straight. up from the..intermedate space ll betweenthe. spools, forming an unbent core. or `center for. the braid with.n the braidfformedqcloselyabout: it.y After the completed blraida with the threadecore comes to the emery facedirolls itnaturally isbent, but; nollrinksiv or breakage-occurs.

In making-up the candle a hole is` left in the. parafinr stick, and the wick thrust up through the hole,A after4 being paralinfcoat`` y itis liquefied, and the wick in the absence ofV the core would not stay erect or burn eyenlyil Viitfln` thet specific type o thread Figure 3. At the next braiding step the which I employ or with a thread treated as hereinbefore: described; the, WiC/k SWS upright 4and bnrnsevenly. and Wtllqulfflilr ing, at aratewhich-.canberVelay amulfly calculated:v

Having. thus deserihed my intention what I claim as nem and; eS-ire.. to secure by Letters-LBatent. isz-Tr QA. candle wiel:` fori the,` purpose., described formed-ofi a. braidedV bedyiV of;c suitable.` fibrous stra-ndsA about.: a.` straight@` core... orlnerb 'Orff a single fibrous thread of; linenythreaglsoff a thickness substantially that; of number twenty-five i thread', treated with. a substance to.. reduce `its combustibilityr` andA increase its l stiffness.

. FRANK"

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