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Publication numberUS2891268 A
Publication typeGrant
Publication dateJun 23, 1959
Filing dateJul 3, 1957
Priority dateJul 3, 1957
Publication numberUS 2891268 A, US 2891268A, US-A-2891268, US2891268 A, US2891268A
InventorsCheadle Joseph C
Original AssigneeCheadle Joseph C
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flue cleaning apparatus
US 2891268 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 1959 J, c. CHEADLE 2,891,268

FLUE CLEANING APPARATUS Filed July 3, 1957 2 Sheets-Sheet 2 Fjg; 5

'IIIIIIIIIIII I 50 47 ll/ e,

INVENTOR. I JOSEPH C. CHEADLE 27 \\ll\llllllllllllllllllll ll" n/nuuum IHIIIIIIH I [HI/II ATTORNEYS Patented June 23, 1959 ice FLUE CLEANING APPARATUS Joseph C. Cheadle, Portland, Greg. Application July 3, 1957, Serial No. 669,741

Claims. (Cl. 15104.2)

The present invention relates to flue cleaning apparatus and more particularly to devices adapted for cleaning boiler fines.

The primary object of the invention is to provide a mechanically operated reciprocating ramrod for the cleaning of fines.

Another object of the invention is to provide a mechanically operated reciprocating ramrod, flexible throughout the greater portion of its length. By having a flexible ramrod a minimum of operating space is required beyond the fines of boilers and the like. In many places the space beyond the boiler flues is limited, therefore with a flexible ramrod, this difliculty is overcome.

A still further object of this invention is to provide a supporting stand or tripod for supporting a power mechanism and ramrod in alignment with the boiler fines having means for raising and lowering the ramrod and for moving the same in a transverse direction.

Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings, in which: t

Figure 1 is a side elevation of the invention arranged in operating position with respect to a boiler, with parts of the boiler being broken away for convenience of illustration.

Figure 2 is an end elevation of the invention.

Figure 3 is an enlarged fragmentary vertical crosssection taken on the line 3-3 of Figure 2, looking in the direction indicated.

Figure 4 is a transverse sectional view taken on the line 4-4 of Figure 2, looking in the direction indicated.

Figure 5 is a fragmentary enlarged side elevation of the brush carrying end of the ramrod.

Figure 6 is an enlarged fragmentary side view of the power operating mechanism for the ramrod, with parts broken away for convenience of illustration.

Figure 7 is an enlarged fragmentary vertical sectional view, taken on the line 7-7 of Figure 1, looking in the direction indicated.

Referring now to the drawings in detail wherein like reference numerals indicate like parts throughout the several figures, the reference character B illustrates a conventional boiler of the type that my improved cleaning apparatus is adapted to clean. In Figures 1 and 2, parts of the boiler B are broken away for convenience of illustration.

The cleaning apparatus generally includes an adjustable tripod assembly T for supporting a ramrod operating power mechanism P. The tripod T includes a triangular base 10 supported upon a pair of caster wheels 11 and a caster wheel 12. The caster wheel 12 is mounted for vertical adjustment on the base 10 by a bracket 13 to adjust the level of the tripod T to correspond to the supporting surface 14, which may not always be level.

Extending upwardly from the base 10 is a threaded post 15. Adjustably and telescopically mounted on the post 15 is a tubular post 16 on which is fixedly mounted a pair of vertically spaced parallel transverse rails 17.

is wrapped around a drum 35 of the winch 31.

The rails 17 are joined together by cross members 18 extending vertically therebetween and are braced to the tubular post 16 by gusset plates 19 welded therebetween. The rails 17 are braced by brackets 21, adjustably secured to the brackets 22 forming part of the rails 17 at one end and adjustably secured to the face 20 of the boiler B at the other end. This assembly provides a' rigid support for the power mechanism P in the following manner.

A carriage 23 operates on the rails 17 on flanged wheels 24 journalled to the carriage 23 on stub shafts 25. This arrangement supports the carriage 23 and permits transverse movement of the same between the rails 17, moving the power mechanism P transversely of boiler tubes 26.

The power mechanism P for operating a flexible cleaning ramrod 27 includes a base frame 28 mounted on a post 29. The post 29 operates within' a tubular guide 30 carried by the carriage 23 as best illustrated in Figures 2 and 3. The post 29 is raised and lowered by a winch 31. A cable 32 is secured to the reduced end 33 of the post 29 at 34. The opposite end of the cable 32 The drum 35 is rotated by a crank 36 and is held in a fixed position by any usual means generally associated with winches (not shown).

The object of reducing the size of the end 33 of the post 29 is to be able to apply an extension post 37 indicated by broken lines in Figure 1 in cases where the boiler B is of a higher elevation than that shown.

The power mechanism P has a superstructure 38 mount ed upon the base 28. This superstructure 38 supports a motor 39 and a gear reduction box 40. Guide sheaves 41 are journalled on transverse shafts 42, which are in turn mounted within pillow blocks 43 fixedly secured to the base 28. The sheaves 41 guide the flexible ramrod 27 through the power unit P. The ramrod 27 is moved in either direction by driving sheaves 44 and 44' keyed respectively to the transverse shafts 45 the lower one of which is journalled within bearings 46 fixedly secured to the base 28.

The sheave 44' is driven in either direction by a chain 47 extending from the gear box 40. The sheave 44 is driven in either direction by a chain 48 extending from the gear box 40. Both sheaves 44 and 44' are driven in a direction to operate together in moving the ramrod 27 therethrough.

The shaft 45 of the sheave 44 is journalled within bearings 46' which forms part of a pivotally mounted arm 49. The arm 49 is pivotally mounted to a cross shaft 50 mounted within the superstructure frame 38. An adjustment screw 51 operating against a base member 52 applies the downward pressure to the sheave 44' against the ramrod 27 to the desired pressure to move the ramrod 27 back and forth.

Fixedly secured to the base frame 28 are limit switches 53 and 54. A brush 55 is secured to a rigid portion 56 of the flexible ramrod 27, referring particularly to Figure 5, by any suitable means including the lock nut 57. The object of the rigid portion 56 is to maintain the brush 55 in alignment with the opening of the tubes 26 while being withdrawn from the end of the tube 26 by the power mechanism P. An adjustable switch operating cam 58 is fixedly secured to the ramrod 27, as best illustrated in Figures 1 and 6.

I will now describe the operation of this new and improved flue cleaning apparatus. The device is moved to a position in front of the boiler B, the brackets 21 are fixedly secured to the face 20 of the boiler B by bolts 20'. The power mechanism P is then raised to either the top or bottom rows of the tubes 26 to either one side or the other, aligning the brush 55 of the ramrod 27 with the first selected tube 26. The motor 39 is started 26 in question;

When the brush 55 leaves the tube 26 it WillStIikB 011 arm 53' of the limit switch 53, stopping and'reversi'n'g" the motor 39 so as to reenter the brush 55 and ramrod 27 for as many cycles as is desired. The manual'switch can be operated to stop the motor 39 While the operator moves the carriage 23 the distance of one tube 26' to either the right or left, depending upon Which-direction he is operating; starting the motor 39 again manually will cause the same to clean the next tube 26 automatic'ally, as above described.

When the end of the row of tubes 26 have been I reached, the operator will lower the power mechanism. P

to the next row of tubes 26 below, repeatin'g the same operation transversely ofthis' row of tubes 26.

The end 59 of the ramrod 27 is held from extending longitudinally of the machine by a spring 60. This causes a loop to form in the rod 27, as best illustrated in Figure 1-,prev'enting the end of the rod 27 from extending horizontally, striking an obstruction or a person.

An electric control switch box indicated by broken lines 6'1 may be provided for the necessary manual switches (not shown), and when used is mounted at'any'convenient location on the carriage 23. I

Having thus described the preferrede'mbodiment of the invention, it should be understood that numerous structural modifications and adaptations may be resorted to without departing from the scope of the appende'd claims.

What is claimedis: V

1. Apparatus for cleaning the fines of a conventional furnace of the type having limited clearance at the end thereof comprising a wheeled base having a substantially vertical rod projecting substantially centrally upwardly therefrom, a tubular member having one of its ends telescoped over the upper end of said rod for vertical adjustment thereon, means securing said tubular member in vertically adjusted position on said rod, a pair of horizontal rails extending transversely of said tubular member and secured thereto in vertically spaced parallel superposed position, a carriage, wheels on said carriage engaging said rails for guiding said carriage in transverse movement between said rails, a tubular guide secured to said carriage having the axis thereof parallel to the axis of said rod, said tubular guide having its axis movable with said carriagein a vertical plane which intersects said wheel base adjacent its center, a post extending through said tubular guide, means on said carriage for moving said post vertically in said tubular guide, an elongated cleaning implement, and means on the upper end of said post for reciprocating said cleaning implement transversely with respect to said post and with respect to" said rails.

2; A device as'claim'edin claim 1 wherein said clean-- ing implement comprises an elongated flexible ramrod, and themeansj for moving said ramrod comprises a plurality of guide rollers 1 and a pair of oppositely disposed drive rollers supported on said post.

3. A device as claimedin claim 2 wherein means are provided onsaid flexible rarnrod drive means for limiting the movement of said ramrod with respect to said post. 4. A device as claimed in claim 1 wherein said cleaning implement is provided with a circular brush detaehably secured to the outer end thereof.

5. A device as'claimed in claim 2 wherein said drive rpllers are provided with means for adjusting the tension therebetweento vary the driving grip of said rollers with said flexible. ramrod;

References Cited in the file of this patent UNITED STATES PATENTS 977,411 Lewis a- Nov. 29, 1 910 1,476,901 McCarty Dec. 11, 1923 2,789,296 Cheadle Apr; 23', 1957

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US977411 *Mar 16, 1908Nov 29, 1910Melville O LewisDevice for handling flue-cleaners.
US1476901 *Feb 14, 1922Dec 11, 1923Mccarty Eugene JBoiler-tube-cleaning machine
US2789296 *Jul 15, 1954Apr 23, 1957Cheadle Joseph CFlue cleaning apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3354490 *Jun 15, 1964Nov 28, 1967Power Tube IncBoiler tube cleaning apparatus
US3858715 *Apr 5, 1973Jan 7, 1975Anderson Othel EShackle cleaning device
US4726137 *Feb 5, 1985Feb 23, 1988Krauss-Maffei A.G.Cleaning device for guns
US5235718 *Oct 24, 1991Aug 17, 1993Goodway Tools CorporationTube cleaning apparatus
US5426807 *Feb 16, 1993Jun 27, 1995Goodway Tools CorporationTube cleaning apparatus
U.S. Classification15/104.2, 226/137, 15/104.33
International ClassificationF23J3/00, F23J3/02
Cooperative ClassificationF23J3/02
European ClassificationF23J3/02