US2134424A - Woven wick for oil burners and the like - Google Patents

Description

Oct. 25, 1938. s. WALTERS WOVEN WICK FOR QIL BURNERS AND THE LIKE Filed June 1, 1937 Patented Oct. 25, 1938 UNITED STATES WOVEN WICK ron gliliEBURNEfiS AND THE Gustav Walters, Middleto wn, Conn, assignor. to

The Russell Manufacturing Company, Middletown, Conn, a corporation of Connecticut Application June 1, 1937, Serial No. 145,652.

4 Claims.

This invention relates to an improvement in wicks and more particularly to woven wicks for oil stoves, etc. Woven wicks as heretofore produced have been generally characterized by two 5 opposite face plys tied together by the usual longitudinal binder-strands extending between the said plys and have possessed many objections among which may be mentioned relatively low capillarity, variation from standard thicknesses,

possession of longitudinal rib-like bulges at diametrically-opposite points thereon, unevenness in their edges, etc., .etc. The present invention contemplates a woven wick of such character as will obviate many of the defects above mentioned.

One of the objects of the present invention is to provide a woven wick which will maintain a burning-edge of superior uniformity when in use.

A further object is to provide a woven wick having superior capacity for conducting liquid fuel to its burning-edge. Y

Another object of the present invention is to provide a woven wick characterized by a superior degree of'uniformity in thickness and resiliency...

A still further object is to provide a superior woven wick characterized by relative freedom from objectionable longitudinal rib-like bulges common in prior types of tubular woven wicks.

With the above and other objects in view, as will appear to those skilled in the art from the present disclosure, this invention includes all features in the said disclosure which are novel over the prior art.

In the accompanying drawing:

Fig. l is a View in side elevation of a seamless tubular woven wick embodying the present invention and shown as mounted in a perforated carrier;

m Fig. 2 is a perspective view of the wick prior to its introduction into a carrier;

Fig. 3 is a schematic view in longitudinal section illustrating one weave suitable for carrying out the present invention; and

. Fig. 4 is a similar view of still another weave suitable for use in wicks of the present invention.

The particular woven wick l0 herein chosen for the illustration of one embodiment of the present invention is of seamless tubular form as shown in Fig. 2 and may be inserted into a tubular perforated metal carrier II in accordance with usual practice.

The particular weave illustrated in Fig. 3 includes a plurality of sets or groups of warp strands which inthe present instance comprise six strands, each respectivelydesignated [2, I3, l4, I5, l6 and I1. The said'warp strands pass through the fabric on a long gentle slope and alternately pass over weft strands or picks IS in one face of the fabric and over weft strands or picks IS in the opposite face of thefabric;

By way of example the warp'strand "I2 may be considered and it will be' noted by reference to Fig. 3 that after passing over the first of the upper weft picks l8 'the said'strand-misses engagement with atotal of'six weft picks l8 and 19 before appearing onthe-opposite' face of the fabric for extension around the weft pick Ill The warp strand l2 then extends'diago n'ally throughthe fabric on'a long-gentle. slope to the opposite'face of the fabric and again misses six Weft picks before looping over theweft pick I8. The remaining warp strands I3, I4, [5, I6 and H are all staggered with'respect to the strand l2 and each other in the order named and each thereof similarly misses six picks between its appearance on the respective opposite faces of the fabric, as clearlyshown in Fig. 3.. It will be understood, of course, that other sets of warp strands corresponding to'the warp strands l2 to I! inclusive exist in the fabric in the background 'of' the strands shown in Fig. 3. By way of example, the next strand back' of the warp strand .l'l would be a strand corresponding inposition and inclination to the warp strand l2.

The weave illustrated in Fig. 3 may be aptly characterized as an interwoven twill inasmuch as each of the warp strands extends through the fabric from one side to the other thereof and does not require the use of binder-strands to tie the two sets of weft strands l 8and l-9 together.

The particular weave illustrated in Fig.4 in-, cludes a plurality of sets or groups of warp strands which comprise six strands each respectively designated 20, 2|, 2:2, 23 24 and 25 arrangedj from the foreground to the background 'in the order Y named. In the upper face of the fabric'- (as viewed in the drawing) is a series of weft strands or picks 26 and in the opposite face is a cor one face of the fabric to the other, and like the weave shown in Fig. 3 each of the said warp strands misses six weft picks between its appearpresent invention that. it may ance upon the respective opposite faces of the fabric.

It may be explained in this connection that in the weave of Fig. 4 the next strand in the background beyond the strand 25 would be another strand corresponding in position to the position of the strand I and constituting the.

first strand of another group of similar warp strands.

Both of the weaves illustrated and above described are characterized by high capacity for conducting oil to the burning-edge of the wick, which in' each of the figures of the drawing is designated by the reference character 28, and as the said burning-edge chars in use, the said edge will remain substantially even owing largely to the fact that all of the longitudinal strands are of the same length, which has not been the case in prior types of tubular woven wicks which have employed binder-strands which have very materially exceeded the length of the ordinary warp strands in the various plys sothat as the material of, such prior wick burns back, the longer binder-strands are free to extend themselves beyond the nominal edge of the wick, thus producing an uneven flame.

Furthermore, by means of the present invention the wickmay be woven to predetermined thickness much more accurately than has been possible with prior types of weaves employed in seamless tubular woven wicks, since in most of the prior types of seamless tubular woven wicks, the tension applied to the binder-strands during the weaving operation very materially varies the thickness of the fabric. Also in the prior tubular woven wicks, the presencefof the great multiplicity of binder-strands not only deprived'the wick of desirableresiliency but also so closely filled the, interstices between the various warp strands as materially retarded the .capactiyof the wick to, conduct oil or other liquid fuel to its burning-edge.

In weaving seamless tubular; woven wicks of many of the types prior to the present invention,

a a very marked deformation took place at diametrically opposite points on the wick where the Weft or filling picks reversed. The defect just mentioned has been so minimized when wicks are woven in seamless tubular form by means of the be regarded as negligible.

The invention may be carried out in other specific ways than those herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming Within the meaning and equivalency range of the appended'claims are intended to be embraced therein.

, l. A woven wick substantially free of binder strands and consisting substantially of a set of tend diagonally back and forth through the fab ric, and each of which warp strands alternately passes over a weft pick of one set of weft picks and then over another pick of the other set of weft picks, and passes between a plurality of the intervening weft picks of both sets of weft picks between its leaving and returning to a given set of weft picks.

2. A woven wick substantially free of binder strands and consisting substantially of: a set of weft picks located adjacent one surface of the wick; another set of weft picks located adjacent the other surface of the wick; and a plurality of groups of more than three warp strands, all of which warp strands extend diagonally back and forth through the fabric, and each of which warp strands alternately passes over a weft pick of one set of weft picks and then over another pick of the other setof weft picks, and passes betweena plurality of the intervening weft picks of both sets of weft picks between its leaving and returning to a given set of weft picks, and the individual strands composing a given group'of warp strands being in longitudinally-staggered relationship with respect to other warp strands of the same group.

3. A woven wick substantially free of binder strands andconsisting substantially of: two sets only of weft picks, one set located adjacent one surface and the otherset located adjacent the other surface of the wick; and. a plurality of groups of six warp strands, all of which warp strands extend diagonally back and forth through the fabric, and each of which warp strands alternately passes over a weft pick of one set of weft picks and then over another pick of the other setof weft picks, and passes between a plurality of the intervening weft picks of both sets of weft picks between its leaving and returning to a given set of weft picks.

4. A seamless tubular woven wick substantially free'of binder strands and consisting substantially of: two sets only of weft picks, one set located adjacent one surface and the. other set located adjacent the other surface of the wick; and a plurality of groups of six warp strands, all of which warp strands extend diagonally back and forth through the fabric, and each of which warp strands alternately passes over a weft pick of one set of weft picks and then over another weft pick of the other set of weft picks, and passes between a plurality of the intervening weft picks of both sets of weft picks between its leaving and returning to agiven set of weft picks, and the individual strands composing a given group of warp strands being in longitudinally-staggered relationship with respect toother warp strands of the same group.

1 GUSTAV WALTERS.

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