US2711119A - Adjustable flush valve seat cutting tool - Google Patents

Description

June21, 1955 .J. MARTINO" Q 2,711,119 I ADJUSTABLE FLUSH VALVE SEAT CUTTING TOOL Filed Sept. 18, 1952 INVENILOR. James Mart no 1? 7 TOR/ME Y United r 7 2,111,119 ADJUSTABLE FLUSH vA vnsEAr. I

This invention relates to a valve-reseating device and more particularly to a valve reseating device for attach ment to flush boxes having upright overflow tubes.

A principal object of the present invention is to provide a highly improved valve reseating device which comprises generally a hand actuable shank having a cutting means on one end thereof, and a frame rotatably supporting'the 2,711,119 Patented June 21, 1955 2 in shape andprovided with longitudinally extending cutting edges 16 on its periphery. Upon the upper surface 17 of the cutter is an annular shoulder 18, which may be formed integrally with the cutter. The shoulder 18 surrounds the adjacent portion of shank 13 and is provided with a threaded aperture for receiving set screw 19 which is screwed into engagement with the shank. To preventthe cutter 15 from sliding upwardly relative to the shank 13, a cross bar "20 extends transversely through the 'shank and is fixedly secured therein. The cross bar 20 is 'received'in notches formed in. the upper end of shoulder 18 to preventthe cutter 15 from rotating or sliding upwardly relative to the shank 13., 1

While the shank, handle and cutter may be fabricated of any'suitable material, "it'has'been found preferable to use metals of high corrosion resistant quality.

In order to properly align the cutting tool 12 with the valve seat 13 to be ground, the frame 11 is provided which is adapted to be firmly secured to an upright overflow'pipe or tube 22 and to support the shank 13 for rotav tive and slidingmovement.

shank and adapted for firm attachment to the overflow tube. I It is another object of the presentinventionto provide a simple and efficient means for regrinding' the seat o'fa flush tank valve.

Another object of the present invention is to provide a flush tank valve reseater which is quickly'and easily attached to a flush tank overflow pipe and adjusted laterally thereof for accurately grinding the valve seat.

Still another object of the present invention is to provide a flush tank valve reseater which is adapted for use with flush tank valves and overflow pipes of'various proportions. i

Yet another object of the presentin've'ntion is to provide a flush tank valve reseater'which is both light-in weight and small in size, such as it is easily'car'ried by hand with 'or without dismantling. I 3

It is another object of the present invention to provide a flush tank valve reseater which is readily dismantled for purposes of storage or replacement of parts.

Still a further object of the present invention is to provide a flush tank valve reseater which is simple and durable, which is effective for its intended purposes, and which can be manufactured and sold at a reasonable cost.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which:

Figure l is a front elevational view of the flush tank valve reseater of the present invention as attached to an overflow tube, shown in dotted outline;

Fig. 2 is a plan view, partly in section, taken on the line 2-2 of Fig. 1, and showing the attaching frame of the present invention;

Fig. 3 is a perspective view of the device of the present invention in operation within a flush tank, the front wall of the flush tank being broken away.

Referring now more particularly to the drawing, the embodiment of the invention illustrated therein comprises a valve reseater, generally designated at 10, which includes an attaching frame 11, and a grinding tool 12.

The grinding tool 12 is composed of a stem or shank 13 which is adapted to be vertically disposed in operation, and which is provided with a handle or rod 14 extending through the shank adjacent .to and spaced below the upper end. The handle is fixedly secured to the shank by welding or other suitable means.

Adjacent the lower end of the shank 13 is a cutter 15 which is provided with a central aperture for receiving the lower end of the shank. The cutter is frusto-conical Th'e'f'r ame' 11 is comprisedof a pair of parallel spaced threadedrods 30 and 31 which are adapted to be horizontallyf'disposed 'on opposite sides of the shank 13 and the tube' 22. Mountedon the'rods 30 and 31 and adjacent one 'endthereof 'a re a pair of complementary members 32 and 33 havingsemi-cylindrical internal surfaces 34 and 35whichface each other to form a vertically extending aperture and to receive therebetwee'n 'the tube 22; The member33isfprovided with a pair of parallelspaced horizontally disposed transverse apertures. 36 and 37 which are provided with internal threads for threaded engagement with the rods 30and 31 respectively. The complementary member. 32is also provided with a pair of parallelspaced horizontally disposed transverse aperturesf38'f and 39 and are adapted toregister'withthe aper ur s and 37 respectively when the surfaces 34 and '35are'in facing relationwithrespect to each other. The apertures 38 and 39 loosely receive the rods 30 and 31 respectively whereby the member 32 is mounted for sliding movement along the rods toward and away from the member 33. On the rods 30 and 31 outwardly of member 32 are a pair of nuts or abutments 40 and 41 which are in threaded engagement with the rods.

In order to attach the frame 11 to the tube 22, the bolts 40 and 41 are moved outwardly to permit the member 32 to slide away from the member 33, whereby enlarging the vertical opening formed therebetween. With the members 32 and 33 on opposite sides of the tube 22, the frame is moved downwardly over the tube to the desired position and the nuts 40 and 41 are moved inwardly into abutting engagement with the member 32. Upon the nuts 40 and 41 being moved inwardly a sutiicient distance, the members 32 and 33 will firmly embrace the overflow tube 22. It has been found that manual operation of the nuts will provide sufiicient clamping action between the members 32 and 33 and the tube 22, and for this purpose each of the nuts have been provided with a knurled periphery.

Arranged transversely of and adjacent the other ends of the bars 30 and 31 are a second pair of horizontally disposed complementary members and 51 which are both mounted for longitudinal movement along the bars. The members 50 and 51 are each provided with parallel spaced apertures or bores 52, 53, 54 and 55, which are of a size to slidably receive the bars 30 and 31. Thus, the members 50 and 51 are arranged with their bores in registry with each other and are mounted for free sliding movement longitudinally along the bars. On the facing surfaces 56 and 57 of members 50 and 51 are formed a pair of complementary semi-cylindrical internal surfaces 58 and 59 which combine to form a cylindrical aperture 60 extending transversely of'the members 50 and 51 and the bars 30 and 31. When the faces 56 and 57 of the members 50 and 51 are in abutting engagement with each other, the aperture 60 is of a size to slidably and rotatably support the shank 13. Thus, a journal bearing is provided for the shank, I g

For positioning the members 50 and 51 along the rods 30 and 31, and for holding the members in tbuttingengagement with respect to each other, there is provided a spaced pair of knurled abutments or nuts adjacent the other surfaces 61 and 60 of the members 50 and 51 respectively. The nuts designated 63, 64, 65 and 66 are rotatably mounted on the bars 30 and 31 and in threaded.

that the members 50 and 51 may be moved toward and away from each other and when in engagement with each other may be shifted longitudinally of the bars 30 and 31 and held together by the nuts 63, 64, 65 and 6 6. I

V In Fig. 3, the device lllis shown in operation in a flush tank 70. After loosening the nuts 40 and 41 and spacing the members 32 and 33, it is only necessary to slide the members 32 and 33 overtthe tube 22 and clamp the members to the tube by means of the nuts 40 and 41. Asthe member 33 is in threaded engagement with bars 30 and 31, it is possible to move the bars longitudinally without disturbing the clamping of the members 32 and 33. By unscrewing the nuts 65 and 66, it isvpossible to remove the member 51. The shank 13 of the grinding tool lit is then placed against the semicylindrical surface 58 with the cutting tool 15 downward. The member 51 is then replaced on the bars 30 and 3 1, as are the nuts 65 and 66. With the shank 13 in the opening 60, the members 50 and 51 are moved longitudinally along the bars 30 and 31 until the cutter 15 is positioned inalignment with the valve seat 21. The nuts 63, 64, 65 and are then tightened against the members 50 and 51, the latter being in engagement with each other, theshank 13 being now slidably supported by the members 50 and 51. f

By manual operation of the handle 14, as shown in Fig. 3, the cutter 15 may be moved downwardly against the valve seat 21 and rotated until the desired surface is effected.

Thus, it is seen that a valve reseater is provided which may be quickly and easily attached in flush tanks of various proportions. It is also seen that the attaching frame 11 is easily dismantled, and, as the attaching frame is preferably made of -al'uminumialloy, it will be easily portable with or withoutdismantling;

While various; chapgesmay be made in the detail construction, it shall be understood that such changes shall be Within the-'spiriu-and scope of the present invention as defined by the appended claim.

What is claimed is:

A valve reseating device for a flush tank having an upright overflow tube, comprising a fluted cutter having a cylindrical shank, a pair of parallel spaced threaded rods,

a pair ofcomplementarylongitudinally adjustable clamp-,

ing members mounted on said rods, means adapted to urge, said clamping members into tight engagement with; theoverfiowtube, and journal means for the fluted cutter,

said journal means including a-pair of complementary members slidably mounted on said spaced threaded rods and having semi-circular openings to provide a journal for the shank of the fluted cutter, and longitudinally adjustable threadedabutments mounted on said rods in threaded engagement therewith and adapted to urgesaid eornple 1 mentary journal members into close abutment and to position said journal members on saidrods. j

References Citedin the file of this patent UNITED STATES PATENTS 2,480,307 Santro Aug. 30,

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