US1953284A - Refacing tool for flush valve seats - Google Patents

Description

April 3, 1934. w D, w 1,953,284

REFACING TOOL FOR FLUSH VALVE SEATS Filed Feb. 25, 1933 ,frzmerzzr 772M221] M222 i atenied Apr. 3, I3

UNITEE STATES? smear oFrica 2 Claims.

My invention relates to new and useful improvements in reiacing tools for flush valve seats and more particularly a hand operated tool that may be easily and quickly assembled on a valve seat fixture and adjusted for manual operation.

An object of the invention is to improve the construction of devices of this character which will be relatively inexpensive in the cost of manufacture, light in weight, although strong and durable, and which may be used in connection with flush valve seats of various sizes.

Another object of the invention is to provide means for adjusting the abrasive element so as to be in proper alignment for refacing the valve seat to insure proper or perfect seating of the flush valve or rubber ball after the same is reinstalled or a new one substituted for one which may be worn out or damaged.

A further object of the invention is to provide, in combination with a flush valve fixture, a bracket adjustably connected with the stand pipe and constructed to fit various sized stand pipes, a guide adjustably mounted in the bracket whereby adjustments of the bracket and said guide will center said guides relative to the valve seat, and an abrasive element mounted on a stem hich is slidably and rotatably mounted in the guide to permit manual operation of said abrasive member for accurately refacing the valve seat.

A still further object of the invention is to provide an abrasive element having different sized grinding surfaces to adapt it for use in connection with difierent sized valve seats.

With these and o her ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how 4t to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawing forming a part of this application, in which:-

Fig. l is a view of a reiacing tool constructed in accordance with my invention and showing it applied to a flush valve fixture, a portion of which is shown in section to illustrate the seat.

Fig. 2 is a sectional view of the guide with a portion of the stem of the abrasive member therein.

Fig. 3 is a plan view of the bracket showing the manner of connecting it to a stand-pipe.

Fig. 4 is a side elevation of the abrasive member per se.

i Fig. 5 is a top end view thereof.

In carrying out my invention as herein embodied, 10 represents the usual flush valve fixture including an outlet 11, a valve seat 12 on which the usual rubber ball flush valve seats to close ofi the flow of water from a flush tank in which the fixture is mounted, and a standpipe 13 which acts as an overflow to prevent the water in the tank overflowing the top of said tank.

The usual bracket carrying the guide for the stem of the flush valve which is mounted on the overflow or stand-pipe 13 is dislodged or completely removed and a bracket 14 then mounted on said stand-pipe. Said bracket 14 has a hole 15 through it to accommodate a stand-pipe of the 7 largest diameter manufactured and this hole is brought into registration with the stand-pipe and the bracket slipped thereon and clamped in place by a shoe 16 carried by the inner end of the set screw 1'7, said shoe working in the recess 13 formed in the back of the bracket and communicating with the hole 15. The screw 17 has threaded connection with the bracket and the shoe preferably has a swivel connection with the inner end of the screw. The bracket further includes a pair of spaced arms 19 providing a slot between them open at the outer end.

Between the arms 19 or in the slot 20 is mounted a guide 21 including a bushing 22 of considerable length to provide a long bearing for the stem of the abrasive member. The bushing has a flange 23 at one end to engage one edge of both of the arms 19 and is externally threaded as at 24 to receive the wing or other nut 25 which is of sufficient size to engage the opposite edges of the arms 19.

The long bearing surface is in the form of a bore 26 running longitudinally through the bushing and in this is slidably and rotatably mounted the stem 2'7 which carries the abrasive member 28 on its lower end, and a suitable handle or Wheel 29 on its upper end.

The abrasive element may be formed of any suitable material and in any desirable or well known manner, but it is preferred that it have a number of distinct areas of different diameters and for purposes of illustration, it is shown with three of such areas 30, 31 and 32. The area 32 is of smaller diameter and is located at the bottom of the abrasive element. Said area 32 is adapted to fit a small sized valve seat and is therefore located below the others which are adapted for use with other larger sized valve seats.

The bushing 22 is of a size to snugly fit in the slot 20 between the arms 10 so that when clamped 1l 0 in place it cannot move about to get out of alignment and the stem 27 must have a sliding fit in the bushing for the same purpose. In practice, the clamp 14 is mounted on the stand pipe 13 with the guide 21 in said bracket and the parts then adjusted so that the abrasive member will accurately enter the valve seat 12. After this has been done, the handle 29 is gripped and the abrasive member rotated through the medium of said handle and the stem 27, and at intervals the abrasive member may be lifted out of the seat. to permit the dislodgement of accumulations of the material which is cut away as well as any of the abrasive material that may break off. By operating the abrasive member in the manner above stated, all of the corrosion on the seat as well as any protuberances will be ground away and the seat will be refaced so that the rubber ball will make a proper joint.

It will be obvious that the tool may be readily and quickly assembled on the flush valve fixture and by only two adjustments the tool will be in proper position for use. After the bracket is adjusted about the standpipe so as to overlie the ball seat, the guide is adjusted in the bracket until it is centered relative to said ball seat and thereafter the operations of refacing the seat accurately and-quickly can be accomplished.

Of course I do not wish to be limited to the these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new and useful is:-

1. A tool of the character described comprising a bracket having a hole therethrough large enough to register with various sized standpipes of flush valve fittings and further provided with a slot at the back thereof communicating with said hole, a set screw having threaded connection with the bracket for projection into said slot, a clamping shoe slidably mounted in said slot and actuated by the set screw to fasten the bracket in any adjusted position on a standpipe, a pair of spaced parallel arms providing a slot between them which is open at one end, a guide including a bushing having a long externally threaded body and a head mounted in the slot with the head in engagement with the under surfaces of the arms, and a nut threaded on the body of the bushing for engagement with the upper surfaces of the arms to clamp the guide in any adjusted position, a stem projecting through the guide and having a sliding and rotating fit therein, an abrasive member on the lower end of said stem, and a handle on the upper end of said stem.

2. The structure set forth in claim 1, wherein the abrasive member includes three abrasive areas of different diameters, said areas decreasing in size toward the lower end of the member.

WILLIAM D. WILLARD.

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