US1022038A - Valve-seating implement. - Google Patents

Description

A. W. MEITZ.

VALVE SEATING IMPLEMBNT. APPLIUATION FILED 111111119, 1911.

' Patented Ap1-.2, 1912. y

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Unteren l. stratus artnr carica. A

AUGUST MEITZ, 0F GRAND RAPIDS, MICHIGAN VALVE-SEATING IMPLEMENT.

the seat and the annular ledge that sur-` rounds the seat may he hoth re-formed at the Sametime. Second, to provide an implement with which the ledge facing cutters may he drawn together so that they will easily pass through the opening to the valve seat and can afterward be forced apart so that the projecting or cut-ting portion will extend overthe entire Width of the ledge. Third. to provide an implement which may he held 'positively to position so that the cutting tool or 'bur will cut the valve seat and ledge yperfectly true.

Fourth, to provide a means for holding thev cutting por ion 'or bur iirmly to place while in operation, and, fifth, to provide ameans whereby the chips may readily escape as they are cut from the valve seat, to avert the danger of clogging the cutter with said chips. l attain these objects by the mechanism illustrated in the accompanying drawing in which Figure 1 is an elevation of the implement. with a vertical section of a valve chamber attached to show the manner ot applying the implement. Fig. 2`is a sectional elevatioa ot the standard,feed screw, the pilot nut and the valve chamber so shown to disclose the adjusting holt, and the position ot the several working elements ot the implement. Fig'. 3 is an elevation ot the standard detached from the other elements ofthe implement to show its general construction and the manner of applying the Afacing; cut` ters. Fig. 4 is an elevation of the implement with the valve chamhcr removed. Fig. 5 is a hott-om plan of the reseatingrp cutter and the pilot nut showing the passageway for chips to pass tln'ough ,troni the cutters as the valve seat is being' operated .upon

Similar letters ot' referencel refer to like elements throughout the several views.

The standard A 1s made hollow far Specification of Letters Patent.

Application filed June 19, 1911.

Serial No. 634,179.

enough down so thatA the adjusting bolt H may he made to adjust the facing cutters D D. as indicated in Fig. 2, and is provided with a screw thread at h to correspond with the like thread on the surface of the adjusting bolt H. This standard has a mortise a through it for the free passage. of the facing cutters D and theclamp block D', the operation of which will be hereinafter more fully explained. The lower end of the standard is solid, as at A, so that the set screw G may he properly appliedto hold the clamping block D and the facing cutters D properly in place in themortise a,

and the outer surface of this end of this standard is screw threaded, as at a', so that the pilot nut F may be screwed upon it. To set this implement ready for repairing a valve seat, the'pilot nut F is screwed to place on the end of the standard A and the clamping holt D is inserted in the lower ond ot the mortise a. The reseating cutter or bur E is then placed upon t-he standard A above the nut F and the `facing cutters D D.V are passed into the mortise a, as indicated in Fig. ,2, when the adjustingT bolt H,

which has a conical point, H', tapered to Patented Apr. 2, 1912.-

correspond with the inclines d (l ot the cutters D D, so that when the holt is in the position indicated in Fig'. 2 the cutters D D 4mayloe made to stand in the positioninclicated by 'the solid.lines in said figure, so that'they will pass easily through the open- .ine atthe top of the `valve chamber I, when the4 bolt H must loe screwed downward in he standard sutliciently to force the cutters D D'out over the surface of the ledge z' 1f that surrounds the valve seat i. as indicated hy the dotted lines in Fig. 2 or shown by the solid vlines in Fifr. 1f. Then the cuttersD D are properly set' the set screw G is screwed -into the lower end of the standard untll the clamp block D presses against'thev lower surfaces ot the cutters D D su'tlieicntly to hold these cutters firmly, but not rigidly toplace in the mortise in the standard A. W hen the cutters D D have been properly1 set Vand secured the collar C, which is, also. provided with a mortise a designed to pass the collar over the edges of the cutters D D` is placed upon the standard A above the cutters and the feed and fluide screw B B 1s placed on the standard above-thefcollarv when the whole is passed through the opening z' at the. top ofthe valve case l. Where it is screwed down to place where 'the sevsaY iectly on the Valve eral cutters will he brought to bear upon the Valye seat and the ledge z'. When this is done the bolt H is screwed downward until the cutters D I) are forced outward to the proper position, indicated in Fig. l, and the standard A is made to revolve by applying any suitable torni ot' wrench upon the square portion, A, and' properly turning it.

'.li l) D are inserted a. short disupper sir-fare ot' the cutter as shown @and 3, for the purpose of insuring the forming ot a perfect corner to the vare seat without danger of i ming a t'urring that might impair the riace et the seat.

"the piiot nut lT must he made of a proper diameter to tit closely in the lower opening of the valve chaml1 er-so that it, together with the feed, screw B B.V will hold the standard A to position so that, the cutters must, all ol them, bear properly and per` and ledge in such a nia-nner that they cannot but cut a perfect seat and ledge, and as the cutting progresses "ic cutters may he kept in cutting Contact with the seat and ledge by screwing the feed screw B gradually into the valve chamber, as hereinhetore indicated. Then the repairs upon the valve seat have been coin-v pleted the'holt H must be screwed bucle Sil .ward or upward, which may be accomplished by applying a wrench upon the portion h and properly manipulating it, and when the cutters D'D are liberated the :feed screw B will he screwed out of its bearing and t e implement may be drawn out of the valve chamber. As the implement is drawn upward the inlines d d on the cutters D D will come in Contact with the shoulder i and the cutters will he forced toward each other until 'they will pass out of the opening at the top oit the chamber. i i

The depressions shown at e e in Fig. 5 represent openings formed theentire lene'th oit the surface of vthe pilot nut F to give Iree passage way for the chips to fail. from the surface of the Yvalve seat out of the valve `chamber so that there will he no danger ot the chips becoming clogged with danger of injuring, if not ruining the valve seat. rthese depressions are so located that openinf are ori'ned between the pilot nut and the inner surface of the-lower opening `of the 'valve ehamber'as indicated in Fig. 2.

The part- C may be made separate from the standard A, as indicated in Fig. 2, or it may be made integral with the st lndard, as may be readily understood by reference to` Figs. 1 and Ll, withoutany particle of ditt'erenoe in the operation of the implement.

What-l claim as new, and desire to secure by Letters Patent of the United States, is:

l. ln a valve seating implement, a hollow standard having the lower end closed and a mortise through near the saidY closed en d, a clamping lolecl through the lower end oit said mortise, a pilot nut around the lower end ot the standard areseating cutter 1nount ed on the standard above the pilot nut F, facing cutters mounted in the mort-isc and bearing upon the reseating'cutters and the clamping hloclr, a set screw through the solid part of the lower end ot' the standard in position to act. upon the clamping block to hold the facing cutters to place, and a boli: passng into the hollow of the standard and adapted to adjfust the facing cutters.

A2. In an implement 'for seating valves, a hollow standard having a inortise through it near the lower end and asolid `portion below the mortise, a pilot nutforming a` shoul-f der around the standard adjacent to the mortise, a reseuting cutter around the standard above the pilot nut, the reseating cutter grooved across the upper surface, a clamping hloc; in the mortise in the standard, facing cutters mounted in said mortise and engaging'. the upper surface of the clamping block and the groove in the top of the reseating cutter, a set screw screwed through the solid part ofthe lower end of the standard against the elaniping block to hold the facing cutters to place, a collar and a feed screw mounted on the standard above the reseating cutter, and a bolt mounted in the hollow of the standard for adjusting the facing cuttersv in an implement for seating valves, a hollow stanrlard, having a mortise through it laterally near the lower end, ay pilot uut screwed onto the lower end of the standard a g depressions in the surface to torn escapeschips, a reseating cutter mounted on the aiioard alcove the pilot nping block in the mortise, vfacing mounted in the mortise above the clamping block; and the reseating cutter, a collar having mortises to pass over the .tacing cutters, a set screw passing up through the lowerv end ot the standard to bear upon the clamping'bloclr to hold the facing cutters to place, and a bolt within the hollow of the standard to adjust' the facing cutters laterally to the width of the ledge ot the valve seat.

Signed at Grand Rapids Michigan June AUGUST TN. MEITV.

In presence of- O. B. CORBIN, I. J. CILLEY.

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