US784129A - Boiler-tube cleaner. - Google Patents

Description

No. 784,129. PATENTED MAR. '7, 1905. 1 H. F. WEINLAND.

BOILER TUBE CLEANER.

APPLICATION FILED JAN. 28, 1904.

2 SHEETS-SHEET 1.

Elnventoz jimy E Mainland,

No. 784,129. PATENTED MAR. 7, 1905.

H F WBINLAND BOILER TUBE CLEANER.

APPLICATION FILED JAN. 28, 1904.

2 SHEETS-SHEET 2.

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akbozwug Ilurrnn Srarns Patented March 7, 1905.

ATFWT Opinion,

HENRY F. WVEINLANI), OF SPRINGFIELD, OHIO, ASSIGNOR TITOITI-IID LAGONDA MANUFACTURING COMPANY, OF SPRINGFIELD, OHIO,

A CORPORATION OF OHIO.

.IBOIILEH TUBE CLEANIEI I...

SPECIFICATION forming part of Letters Patent No. 784,129, dated March 7, 1905.

Application filed January 23, 1904. Serial No. 191,029.

1'0 at whom it may concern:

Be it known that I, HENRY F. VVEINLAND, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and use ful Improvements in Boiler-Tube Cleaners, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in steamboiler-tube cleaners, and is of the general type embodied in Letters Patent No. 743,782, issued November 10, 1903. for improvements in tube-cleaners, granted upon my application and issued to my assignee, the Lagonda Manufacturing Company, of Springfield, Ohio, to whom this present invention is also assigned; but the'cleaner embodied in that patent has its head or body portion constructed essentially of separate disks or plates fixed upon a central shaft. It is in this particular that the present invention departs from and is an improvement over that embodied in said patent.

The present head or body portion is constructed of a single integral piece of metalsay a castingwith pockets or recesses to receive the cutters proper and the bearing blocks, which carry the shafts thereof, a pcculiar and suitable provision being made for the insertion and removal of the cutter-shafts into and out of the bearing-blocks and cutters after and while the same are stationed in such pockets or recesses, all as hereinafter more fully described, and particularly pointed out in the claims. I may add by way of fur ther preface, however, that this type of head or body portion has among its advantages that of absolute stability and rigidity without undue weight, while also being free from the liability of loosening and rattling of parts, making the tool or cleaner into which this head or body portion enters a complete and easily-assembled device.

In the accompanying drawings, forming a part of this specification, and on which like referencedetters indicate corresponding parts, Figure 1 is a side elevation of my improved cleaner with some of the cutters removed. Fig. 2 is a transverse sectional view on the line :1: a of Fig. 1, showing the pockets or recesses which contain the bearingblocks and showing the bearing-blocks themselves and the cutter-shafts all in section; Fig. 3, a detail enlarged perspective view of one of the bearing-blocks; Fig. 4,, a longitudinal axial sectional view of the cleaner entire; Fig. 5, a rear elevation of the cleaner; Fig. (:3. a transverse sectional view on the line ;I of Fig. i, and Fig. 7 a front elevation of the cleaner with the conical cutters and the forward tip removed.

The letter A designates the head or body portion of my improved cleaner, and the letters B- and C respectively indicate the driving-shaft and the forward cutter-stem, which are shown integral with this head or body portion. This integral construction is preferred; but I do not wish to be umlerstood as limiting myself to this construction in respect to the manner of uniting the driving-shaft B and the cutter-stem C to the head or body portion. The shaft B has a spring-detciu; l), by which it may beengaged with or disengaged from its driving mechanism. The stem C, projecting forwardly from the head or body of the device, carries a tip l) in the form of a conical screw adapted to effect the initial entrance into the scale or incrustation found on the interior of the boiler-tubes the removal of which is the pin-pose and use of this cleaner, A cross-pin F serves to secure this tip to the stem. FOllOWll'lg the tip is a set say four -of conical cuttersU, which are toothed and have reduced ends II and l to constitute journals, upon which the cutters turn. A. plate .I, fixed upon the stem C, receives the journals II of these conical cutters, while a similar plate K receives the journals I at the other end of said conical cutters. Thus the cutters are mounted to freely rotate, and by the action of their teeth L they are enabled to attack and remove the lime or other form of incrustation found on the interior of water-tu be boilers.

Coming now more particularly to the peculiarities of the head or body portion proper,

the letter M designates pockets or recesses for the reception of the general cutters N and the letter 0 other recesses or pockets for the reception of the bearing-blocks P. The recesses or pockets M are of any desired contour in cross-sectionsay that best seen in in Fig. 6, wherein they are shown to be circular. The cross-section of the recesses or pockets O is best shown in Fig. 2, wherein they are of a contour to generally lit the bearing-blocks P, with the addition of shoulders Q, which form stops to limit the outward movement of the bearingblocks P, which have shoulders R. Thus it will be understood that the cutters have free movement, both rotary, around their own axes and radial from the axis of the head or body proper, in the recesses or pockets M, While the bearingblocks P have radial movement in and out in their recesses or pockets 0. The blocks carry cutter-shafts S, which pass through the cutters N and fit in bearingsT in these bearing-blocks.

It will be noted that the recesses or pockets M and O are so located relatively to each other as to form, in effect, a single recess, having a central portion M to receive the cutter and end portions 0 to receive the blocks, said recess opening radially outward. It will further be noted that these recesses thus constituted are arranged in annular rows around the body or head, alternating with annular partitions, and that the corresponding recesses of the several groups have their axes in alinement with each other lengthwise of the head. It will further be noted that a separate removable cutter-shaft is provided for each recess, said cutter-shaft being of a length less than the distance between the annular partitions, which define the ends of the recess, but extending through the cutter and the cooperating guide blocks at the ends thereof.

The insertion of the cutter-shafts and their removal, as occasion may require, are steps which are effected after and while the bearingblocks P and cutters N are in place in their respective recesses or pockets. To enable this to be done, openings Uand Vare formed in the head or body portion, through which these cutter-shafts S are inserted or withdrawn in a longitudinal direction, the bearing-blocks and cutters being first placed in line with these openings U and V for this purpose, so that the shaftsS will enter them or can be withdrawn from them in passing through the openings U and V. The openings U are utilized in inserting and removing the cutter-shafts into and from the first set of cutters N, while the openings V are utilized in the like manipulation of the shafts S of the second set of cutters N. Plugs U and V keep the shafts in place after being inserted. It will be understood that when inserting or removing these cutter-shafts S the plate K is previously removed, as also the cutters G, the plate J, and

the tip E, so as to give freedom for the manipulation of these shafts. The shafts of the rear set of cutters N are inserted and removed while the forward cutters N and the forward blocks P are out of their recesses or pockets, and in order to remove the shafts of the rear set of cutters a punch or pin may be inserted in the orifice so as to start the shafts and plugs and drive them forward until they can be taken hold of by reaching down into the forward recesses or pockets. 1 would further state that the bearing-blocks P are inserted and removed from their recesses or pockets 0 by and through the recesses or pockets M,

so that after the said blocks are in place in 30 their recesses or pockets the cutters are introduced. Thus it will be understood that while the head or body portion is constructed of an integral piecesay a casting with recesses 0r pockets M and 0 formed therein and with the surrounding walls all solid and in one piece, still the cutters N, the bearing-blocks P, and the cutter-shafts S are easily and quickly assembled in place or removable for repairs or renewal.

Those skilled in the art to which this cleanerhead belongs will understand without further detail that the tool when put to use is inserted into boiler-tubes having incrustation formed thereon and by suitable mechanism is put under high rotation, so that as the tip-screw proceeds into the tube the conical cutters G take up the work of cutting out the incrustratioi'i, being followed by the first set of cutters N and the next and succeeding set, the latter cutters being mounted, as described, so as to be capable of radial movement in an out and so as to work out against the incrustation by the centrifugal force derived from this high rotary motion.

Having thus fully described my invention, what 1 claim as new, and desire to secure by Letters Patent, is

1. A boiler-tube cleaner of the rotatory type, comprising an integral head or body provided with a plurality of recesses therein opening radially outward, each recess comprising a central portion to receive a cutter and end portions to receive guide-blocks, said end portions having stops to limit the motion of said blocks, said recesses being arranged in a plurality of annular groups alternating with annular partitions forming part of the body, two guide-blocks for each recess, adapted to be inserted through the central portion thereof into the respective end portions and to slide radially therein, a cutter for each recess located in the central portion thereof between the guide-blocks, and a separate cuttershaft for each recess extending removably through the guide-blocks and cutters therein and having a length less than the distance between the annular partitions, said recesses being of dimensions such as to permit radial centrifugal movement of the cutters, blocks and shafts when the cleaner is rotated, substantially as described.

2. A boiler-tube cleaner of the rotatory type, comprising an integral head or body provided with a plurality of recesses therein opening radially outward, each recess comprising a central portion to receive a cutter and end portions to receive guide-blocks, said end portions having stops to limit the motion of said blocks, said recesses being-arranged in a plurality of annular groups alternating with annular partitions forming part of the body, two guide-blocks for each recess, adapted to be inserted through the central portion thereof into the respective end portions and to slide radially therein, a cutter for each recess located in the central portion thereof between the guide-blocks, and a separate cuttershaft for each recess extending removably through the guide-blocks and cutter therein and having a length less than the distance between the annular partitions, said recesses be.

ing of dimensions such as to permit radial centrifugal movement of the cutters, blocks .and shafts when the cleaner is rotated, said annular partitions being provided with longitudinal openings for the insertion and removal of the cutter-shaft, substantially as described.

A boiler-tube cleaner of the rotatory type, comprising an integral head or body provided with a plurality of recesses therein opening radially outward, each recess com prising a central portion to receive a cutter and end portions to receive guide-blocks, said end portions having stops to limit the motion of said blocks, said recesses being arranged in a plurality of annular groups alternating with annular partitions forming part of the body, two guide-blocks for each recess, adapted to be inserted through the central portion thereof into the respective end portions and to slide radially therein, a cutter for each recess located in the central portion thereof between the guide-blocks, and a separate cuttershaft for each recess extending removably through the g1;|ide-l;)locks and cutter therein and having a length less than the distance between the annular partitions, said recesses being of dimensions such as to permit radial centrifugal movement of the cutters, blocks and shafts when the cleaner is rotated, said annular partition being provided with longi tudinal openings for the insertion and removal of the cutter-shafts, and with removable blocks filling said openings to keep the cutter-shafts in operative position, substantially as described.

4. A boiler-tube cleaner of the rotatory type, comprising an integral, substantially cylindrie head or body provided with aplurality of longitudinal recesses therein opening radially outward, said recesses being arranged in a plurality of annular groups alternating with annular partitions forming a part of the body, the longitudinal axes of the corresponding recesses of the several groups being alined longitudinally of the head, each recess comprising a central portion to receive a cutter and end portions to receive guide-blocks, said end portions having stops to limit the motion of said blocks, two guide-blocks for each reeess, adapted to be inserted through the central portion thereof into the respective end portions and to slide radially therein, a cutter for each recess located in the central portion thereof between the guide-blocks, and a separate cutter-shaft for each recess extending reinovably through the guide-blocksand cutter therein and having a length less than the distance between the annular partitions, said annular partitions being provided with longitudinal openings in alinement with the longitudinal axes of the recesses and with the cutter shafts, and removable plugs for said openings, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY F. VEINL-AND.

Witnesses:

E. O. HAoAN, v UrEIR'IlRUDE l). YOUNG.

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