US1485711A - Oil burner - Google Patents

Description

March 4 1924. I

RESEK ET AL 61L BURNER Filed Dec. '7. 1922 2 Sheets-Sheet 1 JM M March 4 1924. 11,485,711

M. RESEK ET AL OIL BURNER Filed Dec. 7, 1922 2 She'Ls-Sheet 2 Patented Mar. 4, 1924..

UNETE STATES meant.

MARC RESEK, OF CLEVELAND HEIGHTS, AND HERMAN F. KLUGE, 0F SHAKER HEIGHTS, OHIO, ASSIGNORS TO THE CLEVELAND I IETAL lR-ODUCTS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

OIL BURNER.

Application filed December 7, 1922. Serial No. 605,495.

To all whom it may concem Be it known that we, (1) MARC RESEK and (2) HERMAN F. KLUGE, citizens of the United States, residing at (1) Cleveland Heights and (2) Shaker Heights, in the county of Ouyahoga and State of Ohio, have invented a certain new and useful Improvement in Oil Burners, of which the following is a full, clear, and exact description reference being had to the accompanying drawings.

This invention relates to an improvement in oil burners of the kind shown in applications of Lee S. Chadwick, Serial Nos. 528,813 and 528,814, filed January 12, 1922, and Serial No. 602,740, filed November 23, 1922, and in the joint application of Lee S. Chadwick and Marc Resek, Serial No. 596,970, filed October 26, 1922. The construction disclosed in application Serial No. 602,740 is followed herein, the same being changed only to the extent of having our invention incorporated in it.

In general, the burner comprises, in addition to the usual inner and outer wick tubes between which the cylindrical wick is guided, wick adjusting means, wick stop mechanism involvingwhat is commonly re ferred to as a spanner which is movable up and down within and is guided by the upper end of the inner wick tube, and an air controlling member or flame spreader which is adapted to be locked to the spanner and which has a part disposed above the wick and arranged to be engaged by the burned end thereof. Briefly, the operation is as follows: W hen the Wick is elevated by the wick adjusting means, t engages and lifts the air controlling member, and the latter, being locked through the spanner to the wick stop mechanism, lifts said mechanism and couples it with the wick adjusting means. After the wick stop mechanism and wick adjusting means are thus operatively connected together, the act-ion of the wick adjusting means is transmitted to theair controlling member, causing said member to be lifted free from the wick to a fixed position wherein 1t functions purely as an air controlling member or flame spreader, while the W101:

adjusting means, under the restraining influence of the stop mechanism, is permitted a scope of movement independently of the air controlling member sufiicient to adjust the Wick to any desired elevation within its burning range. When the wick is lowered .to extinguish the flame, the stop mechanism descends to ineffective position and is un' coupled from the wick raising means, and the air controlling member resumes its down position.

During the foregoing operation the spanner is moved up and down within the inner Wick tube. Its initial upward movement is effected by the wick through the intervention of the air controlling member, and its continued upward movement is effected by the wick adjusting means through the intervention of the wick stop mechanism. Thus, its upward movement is positive throughout. Its downward movement, however, is positive only the while the connection prevails between it and the wick adjusting means through the intervention of the wick stop mechanism. After such connection ceases it is returned to low position by gravity of itself and of the parts connected to it.

In order to insure its dropping freely during this last period and to prevent interference therewith by a possible accumulation of dust or char between the spanner and the wick tube, it is necessary that the spanner fit loosely within the wick tube. On the other hand, too loose a fit when the spanner is elevated will defeat two of its important functions; first, that of restricting to a proper limited amount the quantity of air rising between the spanner and the inner wick tube, and second, that of centering the air controlling member within the inner wick tube and thus properly position ing it with respect to the wick, as otherwise an uneven and generally unsatisfactory flame would result.

The purpose of our invention is to obviate the difficulties arising from too loose a fit of the spanner within the inner wick tube when in elevated position, and yet to provide'for an absolute freedom of movement of the parts when they are descending by gravity. These ends we accomplish simply, according to the present embodiment of. our invention, by forming the inner wick tube with a restricted portion or throat into which the spanner is projected when elevated so that during the operation of the burner it will be centered with respect to the burner and the air controlling member accordingly correctly positioned with respect to the wick and the flow of air properly governed, the parts being released for free downward movement as soon as they are retracted from the throat.

Our present preferred construction is illustrated in the accompanying drawings, and while we shall proceed to specifically describe the same, it is to be understood that we do not limitourselves to the structural details thereof further than is required;

lar wick space 3 enclosed by the inner and outer wick tubes 4 and 5, and an annular wall 6 which connects the lower ends of said tubes. Oil is'supplied to the wick space through a fitting 7 As may be seen more clearly by reference to the before mentioned applications Serial Nos. 596,970 and 602,740, the inner wick tube is formed throughout its lower portion, starting a suitable distance downwardly from its upper end, with a reentrant part 10 which encloses an offset 11 of the wick space, and awick elevator 12, which has connection with the wick, occupies the offset 11 and extends part way around the wick space and is adapted to be adjusted vertically therein to raise and lower the wick by a rod 13 which has its lower end connected to the wick-elevator and its upper portion guided through a sleeve 14 which rises-from thetop wall 15 of the offset 11. The rod 13 terminates at its upper end in a head 16 through which it has connection with a rack member 17 that descends below theburner tubes where it cooperates with a pinion 18 on a spindle 19 that is journaled within spaced branches 20 and 21 of bracket 22 thatis secured to and depends from the burner tubes. The forward end of the spindle 19 is equipped with an operating handle25, and carriedby the rear end of the spindle is a ratchet wheel26.

.Aboveits reentrant part 10, the.- inner wick tube is cylindrical for a suitable distance upwardly and is then contracted to provide a restricted portion or throat 30. An annulus or spanner 31 occupies the upper end of the inner wick tube and is adapted to be moved from low position below the throat 30, as illustrated in Fig. 1, to high position within the throat, in which position it is illustrated in Fig. 3, These respective positions are shown in full and in dotted lines in Fig. 4.

The spanner 31 is attached to the upper end of a frame 35 that has its lower end guided between overturned portions 36 and 37 of the branch 21 of the previously mentioned bracket 22. The lower end of said branch is held rigid through a brace 38 which connects it with the adjacent side of the burner tubes.

Pivoted through a member 40 'to the lower end of the frame 35, for oscillation with respect thereto, is a stop plate 41 incorporating a stop 42 which is arranged to engage one of the lateral edges of the lower end portion of the frame 35 and limit the swinging movement of the stop plate. The stop plate also carries a pawl'43 which is yieldable but is held against undue movement by a member 44 which is secured at 45' to the stop plate and is provided with a notch 46 which embraces the pawl and is wide enough to allow only a limited angular movement of the pawl. The upper endof the pawl is turned inwardly to provide a nose 48 that is arranged to cooperate with the teeth of the ratchet wheel 26 under certain conditions hereinafter to be explained. The arcuate lower edge of the stop plate 41 is substantially concentric with the axis of the pivot member 40, and in the opera tion of the mechanism, as will be hereinafter more fully described, the lower edge of the stop plate rides over a roller 49 that is carried by an extension of the overturned portion 37 of the bracket branch 21.

An air controlling member or flame spreader 5O reposes within the upper end of the burner and rests, through its body portion 51, on the spanner 31. A pin 52 is slidable through the top of the air controlling member and its tapered lower end is adapted to be-engaged-between the upwardly diverging surfaces of locking elements 53 which are pivoted at 54 to the frame 35 and are held against undue annu larmovement with respect thereto by stops 55 which are extended from the top of the frame through openings 56 in said elements. When the locking elements are forced apart through the descent of the pin 52 their keeper portions 58 are projected over and into contact "with an annular shoulder 59 of the air controlling member to effectivelylock it to the spanner- 3'1 and accordinglyto the parts. connected tov the spanner and- Cir which compose what we have hereinbefore referred to as the wick stop mechanism. The air controlling member incorporates a flange 60 which overhangs the top of the wick, and flaring downwardly and outwardly over the flange 6 in spaced relation thereto is the top 61.

Figs. 1 and '2 show the various parts in the positions which they occupy when the burner is not in operation. The wick may or may not be further down than shown. With the parts as illustrated'in Figs. 1 and 2, and in full lines in Fig. 4, it will be noted that the spanner 31 fits very loosely within the inner wick tube. When it is desired to light the burner, the spindle is rotated in a direction to elevate the rack member 17 through the pinion 18 and lift the rod 13 and with it the elevator 12 to which the wick is connected, thereby to raise the wick. As the wick ascends its upper end engages the flange 60 of the air controlling member, and through said member, lifts the frame 35 which carrie the spanner 31 and stop plate 41. The parts are moved upwardly by the wick until the nose 48 of the pawl 43 is picked up by one of the teeth of the ratchet wheel 26. Thereafter, the continued upward movement of the parts i dependent upon the wick adjusting spindle 19. As said spindle is further rotated in the direction to elevate the wick, it lifts, through the stop plate, the parts which were ini tially lifted by the wick until the lower edge of the stop plate escapes over and bears upon the roller 49 at which time the axis of the pivot member 40 on which the stop plate swings is substantially coincident with the axis of the spindle 19, as shown in Fig. 3. The stop plate, bearing upon the roller 49, sustain the air controlling member 50, through the intermediate parts, with its flange a given distance above the tops of the wick tubes, and the spindle is limited in its further rotation in the aforesaid direction by the engagement of the stop 42 with the edge of the frame 35 and consequently it is restrained from lifting the wick above a predetermined high position.

By reference to Fig. 3 and to the dotted lines of Fig. 4 it will be seen that when the parts are elevated, the spanner 31 oocupie the restricted throat 30 of the inner wick tube wherein it fits closely enough to properly center the spanner and the air controlling member with respect to the burner, there being enough space between the spanner and the throat of the inner wick tube, however, to permit the upward passage of sufficient air between the body of the flamespreader and the inner wick tube to keep the space between said parts cleared of comparatively heavy vapors which otherwise would tend to descend thereinto,

- In returning the parts to their former position, the spindle is rotated in a reverse direction to lower the wick and, through the pawl 43, to swing the stop plate 41 downwardly until its lower ed e rides off the roller 49. Immediately after this occurs the pawl 43 is released from the ratchet wheel and the parts descend by gravity to the position illustrated in Figs. 1 and 2, the spanner having been retracted from the throat 30 prior to the release of the pawl.

Having thus described my invention, what I claim is:

1. In a burner of the character set forth, an air controlling member, means through which said member is lifted from a low position to an elevated position and through which its downward movement is initiated, the member further descending to low position by gravity, and a guide for said means, said guide having a restricted portion and said means including a part fitting loosely within said restricted portion when the air controlling member is in elevated position and being withdrawn therefrom when said member is in low position.

2. In a burner of the character set forth, in combination, a wick adjusting means for raising and lowering the wick, mechanism adapted to be lifted and thereby coupled with the wick adjusting means, an air controlling member connected to said mechanism and having a part disposed above the wick so that when the wick is raised it will lift said mechanism through the intervention of said member and couple the mecha nism with the wick adjusting means, said means, thereafter serving to lift the mechanism to an elevated position and to initiate the downward movement of the mechanism, the mechanism further descending to low position by gravity, and a guide having a restricted portion, said mechanism including a part that cooperates with the guide and reposes within the restricted portion thereof when the mechanism i in elevated position and is withdrawn therefrom when the mechanism is in low position.

3. A. burner comprising inner and outer wick tubes, an air controlling member supported in operative relation to the wick tubes for limited vertical movement with respect thereto, and means for lifting said member from low position to elevated position and for initiating its downward movement, the member further descending to low position by gravity, the inner wick tube having a restricted portion and said means including a part fitting within said restricted por tion when the air controlling member is in elevated position and being withdrawn therefrom when the member is in low position.

4. A burner of the class set forth including an inner wick tube having a restricted throat, mechanism movable up and down within the inner wick tube and including an air controlling member and a part which fits within the restricted throat of the in ner wick tube when the mechanism is elevated, and means for lifting the mechanism from low to high position and for initiating its downward. movement, the mechanism further descending to low position by gravity and the aforesaid n rt of the mechanism being withdrawn from the restricted throat of the inner Wick tube during the initial downward movement of the mechanism.

5. A burner of the class set forth including an inner wick tube having a restricted throat, an air controlling member adapted to be raised and lowered with respect to the burner, an element associated with the air controlling member and which is adapted to repose within. the restricted throat of the inner wick tube when the air controlling member is in elevated position thereby to control the How of air upwardly between said element and the wall. of the inner wick tube, and means for lifting the air controlling member and said element from low to high position and for initiating the down ward movement of said parts, the parts further descending to low position by gravity, said element being retracted from the restricted throat of the inner wick tube during the initial downward movement of said element and the air controlling member.

6. A burner comprising inner and outer wick tubes enclosing between them a wick space, a wick within said space, adjusting means for raising and lowering the Wick, an air controlling member having a part disposed above the-wick space, mechanism that is adapted, when lifted, to assume driving connection with the wick adjusting means, the air controlling member being connected with said mechanism whereby the wick, when raised, will engage the aforesaid part of the air controlling member and through said member lift said mechanism to couple it with the wick adjusting means, said means thereafter serving, when rotated in a direction to raise the wick, to elevate the said mechanism and the air controlling member to a high position and, when its direction of rotation is reversed, to initiate the downward movement of said parts, the parts further descending to low position by gravity, the inner wick tube having a restricted throat and said mechanism including a part fitting within. said throat when said mechanism and air controlling member are in high position.

7. In a burner of the character set forth, the combination of an inner and an outer wick tube enclosing between them a wick space, the inner wick tube having a restricted throat spaced a suitable distance from its upper end, a spanner occupying the inner wick tube, an air controlling member rest ing upon and locked to the spanner and having a part disposed above the wick space, a wick within the wick space, adjusting means for. raising and lowering the wick, and mechanism connected to the spanner and adapted, when lifted, to assume driving connection with the wick adjusting means whereby, when the said means is operated in a direction to raise the wick, the wick will engage the aforesaid part of the air controlling member and through it lift the mechanism to couple it with the wick adjusting means, the wick adjusting means thereafter serving to elevate the mechanism and the air controlling member to high position and, when its direction of operation is reversed, to initiate the downward movement of the mechanism, the mechanism becoming uncoupled from the wick adjusting means when it reaches a given point in its downward travel, the mechanism further descending to low position by gravity, the parts being so designed and proportioned that when the mechanism is in elevated position, the spanner will occupy the throat of the inner wick tube and will be withdrawn therefrom during the initial downward movement of the mechanism.

8. In a burner of the character set forth, the combination with inner and outer wick tubes, the inner wick tube having a restricted throat spaced a suitable distance from its upper end, a wick within the space between the wick tubes, an annular spanner: occupying the inner wick tube, an air controlling member resting upon the spanner and having a part disposed above the wick, adjusting means for raising and lowering the wick, mechanism connected with the spanner and adapted, when lifted, to assume driving connection with the wick adjusting means and including a latch mechanism for locking the air controlling member to the spanner whereby when the wick adjusting means is operated in a direction to elevate the wick, it will cause the wick to engage the aforesaid part of the air controlling member and through said member lift the mechanism to couple it to the wick adjusting means whereupon the wick adjusting means will continue to lift the mechanism and air controlling member to high position, the.

therefrom during the initial downward portion at such a point that the support fits movement of the mechanism and air control closely within the uide when in its highest 10 ling member. position and loose y therewithin when in 9. In a burner of the character set forth, and near its lowest position.

5 an air controlling member, a support on In testimony whereof, we hereunto afiix which the member rests, said support having our signatures. a limited vertical movement, a guide for MARC RESEK. said support, the guide having a restricted HERN F. -KLUGE.

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